Patent Grant
11156862
This application claims the benefit of Korean Patent Application No. 10-2016-0084037 filed on Jul. 4, 2016, the entire contents of which are incorporated herein by reference for all purposes as if fully set forth herein.
The present disclosure relates to a display device.
With the development of the information society, various demands for display devices have been increasing. Various display devices, such as, e.g., liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescent displays (ELDs), and vacuum fluorescent displays (VFDs), have been studied and used to meet various demands for the display devices.
Among the display devices, a liquid crystal display panel of the liquid crystal display includes a liquid crystal layer, and a thin film transistor (TFT) substrate and a color filter substrate which are positioned opposite each other with the liquid crystal layer interposed therebetween. The liquid crystal display panel displays an image using light provided by a backlight unit of the liquid crystal display.
Accordingly, an object of the present disclosure is to address the above-described and other problems.
Another aspect of the present disclosure is to provide a display device capable of maintaining initial image quality by improving durability of the display device.
Another aspect of the present disclosure is to provide a display device capable of varying an arrangement of light sources of a backlight unit.
Another aspect of the present disclosure is to provide a display device capable of improving light efficiency of a backlight unit.
Another aspect of the present disclosure is to provide a display device capable of securing structural rigidity of a slim frame.
Another aspect of the present disclosure is to provide a display device capable of improving a support structure of an optical layer.
Another aspect of the present disclosure is to provide a display device capable of improving the assembly convenience of a holder and preventing the detachment of the holder.
Another aspect of the present disclosure is to provide a display device capable of improving the durability against an external impact.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, the present invention provides in one aspect a display device including a display panel; an optical layer behind the display panel; and a frame behind the optical layer. Further, the frame includes a flange supporting a portion of a back surface of the optical layer; a first rib extended from the flange and configured to contact and support a side surface of the optical layer; and a second rib extended from the flange and positioned to be spaced apart from the side surface of the optical layer.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:
Reference will now be made in detail embodiments of the invention examples of which are illustrated in the accompanying drawings. Since the present invention may be modified in various ways and may have various forms, specific embodiments are illustrated in the drawings and are described in detail in the present specification. However, it should be understood that the present invention are not limited to specific disclosed embodiments, but include all modifications, equivalents and substitutes included within the spirit and technical scope of the present invention.
The terms ‘first’, ‘second’, etc. may be used to describe various components, but the components are not limited by such terms. The terms are used only for the purpose of distinguishing one component from other components. For example, a first component may be designated as a second component without departing from the scope of the present invention. In the same manner, the second component may be designated as the first component.
The term “and/or” encompasses both combinations of the plurality of related items disclosed and any item from among the plurality of related items disclosed. When an arbitrary component is described as “being connected to” or “being linked to” another component, this should be understood to mean that still another component(s) may exist between them, although the arbitrary component may be directly connected to, or linked to, the second component. In contrast, when an arbitrary component is described as “being directly connected to” or “being directly linked to” another component, this should be understood to mean that no component exists between them.
The terms used in the present application are used to describe only specific embodiments or examples, and are not intended to limit the present invention. A singular expression can include a plural expression as long as it does not have an apparently different meaning in context. In the present application, the terms “include” and “have” should be understood to be intended to designate that illustrated features, numbers, steps, operations, components, parts or combinations thereof exist and not to preclude the existence of one or more different features, numbers, steps, operations, components, parts or combinations thereof, or the possibility of the addition thereof.
Unless otherwise specified, all of the terms which are used herein, including the technical or scientific terms, have the same meanings as those that are generally understood by a person having ordinary knowledge in the art to which the present invention pertains. The terms defined in a generally used dictionary must be understood to have meanings identical to those used in the context of a related art, and are not to be construed to have ideal or excessively formal meanings unless they are obviously specified in the present application.
The following exemplary embodiments of the present invention are provided to those skilled in the art in order to describe the present invention more completely. Accordingly, shapes and sizes of elements shown in the drawings may be exaggerated for clarity.
Hereinafter, the embodiments of the invention are described using a liquid crystal display panel as an example of a display panel. Other display panels may be used. For example, a plasma display panel (PDP), a field emission display (FED) panel, and an organic light emitting diode (OLED) display panel may be used.
In what follows, a display device 100 may include a first long side LS1, a second long side LS2 opposite the first long side LS1, a first short side SS1 adjacent to the first long side LS1 and the second long side LS2, and a second short side SS2 opposite the first short side SS1.
In the embodiment disclosed herein, the first short side SS1 may be referred to as a first side area; the second short side SS2 may be referred to as a second side area opposite the first side area; the first long side LS1 may be referred to as a third side area which is adjacent to the first side area and the second side area and is positioned between the first side area and the second side area; and the second long side LS2 may be referred to as a fourth side area which is adjacent to the first side area and the second side area, is positioned between the first side area and the second side area, and is opposite to the third side area.
The embodiment of the invention describes that lengths of the first and second long sides LS1 and LS2 are longer than lengths of the first and second short sides SS1 and SS2 for the sake of brevity and ease of reading. However, the lengths of the first and second long sides LS1 and LS2 may be almost equal to the lengths of the first and second short sides SS1 and SS2.
In the following description, a first direction DR1 may be a direction parallel to the long sides LS1 and LS2 of the display device 100, and a second direction DR2 may be a direction parallel to the short sides SS1 and SS2 of the display device 100. Further, a third direction DR3 may be a direction vertical to the first direction DR1 and/or the second direction DR2.
In the embodiment disclosed herein, the first direction DR1 and the second direction DR2 may be commonly referred to as a horizontal direction. Further, the third direction DR3 may be referred to as a vertical direction. In another point of view, a side or a surface, on which the display device 100 displays an image, may be referred to as a front side or a front surface. When the display device 100 displays the image, a side or a surface, at which the image cannot be observed, may be referred to as a back side or a back surface. When the display device 100 is observed at the front side or the front surface, the first long side LS1 may be referred to as an upper side or an upper surface. In the same manner as the first long side LS1, the second long side LS2 may be referred to as a lower side or a lower surface. Further, the first short side SS1 may be referred to as a left side or a left surface, and the second short side SS2 may be referred to as a right side or a right surface.
Further, the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 may be referred to as edges of the display device 100. Positions where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 meet one another may be referred to as corners. For example, a position where the first long side LS1 and the first short side SS1 meet each other may be referred to as a first corner C1; a position where the first long side LS1 and the second short side SS2 meet each other may be referred to as a second corner C2; a position where the second short side SS2 and the second long side LS2 meet each other may be referred to as a third corner C3; and a position where the second long side LS2 and the first short side SS1 meet each other may be referred to as a fourth corner C4.
In the embodiment disclosed herein, a direction from the first short side SS1 to the second short side SS2 or a direction from the second short side SS2 to the first short side SS1 may be referred to as a left-right direction LR. A direction from the first long side LS1 to the second long side LS2 or from the second long side LS2 to the first long side LS1 may be referred to as an up-down direction UD.
The display panel 110 is divided into an active area on which the image is displayed, and an inactive area on which the image is not displayed. The display panel 110 may include a front substrate and a back substrate that are positioned opposite each other with a liquid crystal layer interposed therebetween.
The front substrate may include a plurality of pixels each including red, green, and blue subpixels, and can generate an image corresponding to red, green, or blue color in response to a control signal. Further, the back substrate may include switching elements and can switch on and off pixel electrodes. For example, the pixel electrodes can change a molecule arrangement of the liquid crystal layer in response to a control signal received from the outside.
In addition, the liquid crystal layer includes a plurality of liquid crystal molecules, and the arrangement of the liquid crystal molecules can be changed depending on a voltage difference between the pixel electrode and a common electrode. The liquid crystal layer can also transfer light provided by a backlight unit 120 to the front substrate.
A front cover 105 covers at least a portion of a front surface and a side surface of the display panel 110. The front cover 105 may have a rectangular fame shape, in which a center portion is empty. Because the center portion of the front cover 105 is empty, an image displayed on the display panel 110 can be seen to the outside.
The front cover 105 may also include a front cover and a side cover. Namely, the front cover 105 may include the front cover at the front surface of the display panel 110 and the side cover at the side surface of the display panel 110. The front cover and the side cover may be separately configured, and one of the front cover and the side cover may be omitted. For example, the front cover can be omitted, and only the side cover can be absent in terms of a beautiful appearance of the display device 100.
A guide panel 117 is positioned in the rear of the display panel 110 and supports a portion of a back surface of the display panel 110. The guide panel 117 contacts an edge of the display panel 110 and is coupled to a frame 130.
The backlight unit 120 is positioned in the rear of the display panel 110 and includes a plurality of light sources. The light sources of the backlight unit 120 may be arranged in an edge type or a direct type. For the edge type backlight unit 120, a light guide plate or a light guide panel may be added.
The backlight unit 120 may be positioned in front of the frame 130. For example, the plurality of light sources can be disposed at a front surface of the frame 130. In this instance, the backlight unit 120 is commonly called the direct type backlight unit 120. The backlight unit 120 can also be driven in an entire driving method or a partial driving method, such as a local dimming method and an impulsive driving method. As shown, the backlight unit 120 may include an optical sheet 125 and an optical layer 123.
In particular, the optical sheet 125 disperses light of the light sources and may be configured as a plurality of layers. For example, the optical sheet 125 may include at least one prism sheet and/or at least one diffusion sheet. The optical sheet 125 may further include at least one coupling portion 125d. The coupling portion 125d can be coupled to the front cover 105 and/or a back cover 150.
Namely, the coupling portion 125d can be directly coupled to the front cover 105 and/or the back cover 150. Alternatively, the coupling portion 125d may be coupled to a structure coupled to the front cover 105 and/or the back cover 150. Namely, the coupling portion 125d can be indirectly coupled to the front cover 105 and/or the back cover 150. Further, the optical layer 123 may include the light sources, etc. The optical layer 123 will be described in detail in the corresponding paragraphs.
The frame 130 supports the components constituting the display device 100. For example, the backlight unit 120 may be coupled to the frame 130. The frame 130 may be formed of a metal material, for example, an aluminum alloy.
In addition, the back cover 150 is positioned in the rear of the display device 100 and protects an inner configuration of the display device 100 from the outside. At least a portion of the back cover 150 can be coupled to the frame 130 and/or the front cover 105. The back cover 150 may also be an injection production formed of a resin material (or an injection molded resin material).
Referring to
The substrate 122 may also be configured as a plurality of straps, extended in a first direction and spaced apart from one another by a predetermined distance in a second direction perpendicular to the first direction. At least one light assembly 124 may be mounted on the substrate 122. Further, the substrate 122 may have an electrode pattern for connecting an adaptor to the light assembly 124. For example, a carbon nanotube electrode pattern may be used for the electrode pattern. The substrate 122 may be formed of at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), and silicon. The substrate 122 may be a printed circuit board (PCB).
The light assemblies 124 may be disposed on the substrate 122 at predetermined intervals in the first direction. In addition, a diameter of the light assembly 124 may be greater than a width of the substrate 122. Namely, the diameter of the light assembly 124 may be greater than a length of the substrate 122 in a second direction.
The light assembly 124 may be one of a light emitting diode (LED) chip and a LED package having at least one LED chip. The light assembly 124 may also be configured as a colored LED emitting at least one of red, green, and blue light or a white LED. The colored LED can include at least one of a red LED, a green LED, and a blue LED.
Further, the light source included in the light assembly 124 may be a COB (chip-on board) type. The COB light source may be configured such that the LED chip as the light source is directly coupled to the substrate 122. Hence, a manufacturing process can be simplified, a resistance can be reduced, and thus a loss of energy due to heat decreases. Namely, the power efficiency of the light assembly 124 increases. The COB light source provides brighter lighting and can be manufactured to be thinner and lighter than a related art.
In addition, the reflective sheet 126 is positioned at a front surface of the substrate 122 and includes through holes 235, and the light assembly 124 is inserted into the through hole 235. The reflective sheet 126 reflects light emitted from the light assembly 124 forward and again reflects light reflected from the diffusion plate 129 toward the diffusion plate 129.
In addition, the reflective sheet 126 may include at least one of metal and metal oxide, each of which is a reflection material. The reflective sheet 126 may include metal and/or metal oxide having a high reflectance, for example, at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2).
The reflective sheet 126 can also be formed by depositing and/or coating the metal or the metal oxide on the substrate 122. An ink including the metal material may also be printed on the reflective sheet 126. Further, a deposition layer may be formed on the reflective sheet 126 using a thermal deposition method, an evaporation method, or a vacuum deposition method such as a sputtering method. A coating layer and/or a printing layer can also be formed on the reflective sheet 126 using a printing method, a gravure coating method, or a silk screen method.
Further, an air gap may be positioned between the reflective sheet 126 and the diffusion plate 129 to serve as a buffer capable of widely spreading light emitted from the light assembly 124. A supporter (or support plate) 200 can be positioned between the reflective sheet 126 and the diffusion plate 129, so as to maintain the air gap. A resin may be deposited on the light assembly 124 and/or the reflective sheet 126 to diffuse light emitted from the light assembly 124. The diffusion plate 129 also diffuses light emitted from the light assembly 124 upwardly.
In addition, the optical sheet 125 may be positioned in front of the diffusion plate 129 with a back surface of the optical sheet 125 facing the diffusion plate 129, and a front surface of the optical sheet 125 facing the back surface of the display panel 110.
The optical sheet 125 may include at least one sheet. More specifically, the optical sheet 125 may include one or more prism sheets and/or one or more diffusion sheets. The plurality of sheets included in the optical sheet 125 can also be attached and/or adhered to one another.
In other words, the optical sheet 125 may include a plurality of sheets having different functions. For example, the optical sheet 125 may include first to third optical sheets 125a to 125c. The first optical sheet 125a can function as a diffusion sheet, and the second and third optical sheets 125b and 125c can function as a prism sheet. A number and/or a position of the diffusion sheets and the prism sheets can also be changed.
The diffusion sheet can prevent light coming from the diffusion plate 129 from being partially concentrated and can more uniformly distribute the light. The prism sheet can concentrate light coming from the diffusion sheet and make the concentrated light be vertically incident on the display panel 110.
In addition, the coupling portion 125d may be formed on at least one of a side and an edge of the optical sheet 125. The coupling portion 125d may be formed on at least one of the first to third optical sheets 125a to 125c. The coupling portion 125d may be formed at a long side or an edge of the optical sheet 125. The coupling portion 125d on a first long side and the coupling portion 125d on a second long side may be asymmetrical to each other. For example, a number and/or a position of the coupling portions 125d on the first long side may be different from a number and/or a position of the coupling portions 125d on the second long side.
Referring next to
Further, a wire hole 234 can be formed at one end of the wire electrode 232. The wire hole 234 may be a fine hole penetrating the frame 130. The wire electrode 232 can be extended to a back surface of the frame 130 through the wire hole 234. The wire electrode 232 can also be electrically connected to an adaptor positioned at the back surface of the frame 130 through the wire hole 234.
The light assemblies 124 can also be mounted on each substrate 122 (or each strap) at predetermined intervals in the first direction. A diameter of the light assembly 124 may be greater than a width of the substrate 122 in the second direction.
Referring to
Further, the power supply board 315 can supply an electric current to the light assembly 124 through the wire electrode 232. The power supply board 315 can be electrically connected to a main board 321 through the wire electrode 232. In addition, the main board 321 may be spaced apart from the power supply board 315 by a predetermined distance.
The main board 321 can also be a printed circuit board providing an interface for operating the display device 100. Further, the main board 321 can check and control an operation state of each of the components of the display device 100.
The power supply board 315 and the main board 321 can be electrically connected to a timing controller board 319 through the wire electrode 232. The timing controller board 319 may be a printed circuit board transmitting electric power or signals received from the power supply board 315 or the main board 321 to the display panel 110. The timing controller board 319 can also be electrically connected to the display panel 110 positioned in front of the frame 130 through flat flexible cables 251.
Next,
The flat portion 130B can form an entire bottom of the frame 130 and be bent or stepped to provide rigidity for the frame 130. Alternatively, the flat portion 130B may have a stepped portion to support or fix the components.
The frame 130 may have trenches 132, 134 and 136 formed on the flat portion 130B. Each of the trenches 132, 134 and 136 may be formed on the flat portion 130B in the left-right direction LR. The trenches 132, 134 and 136 can also be formed by pressing the frame 130 or the flat portion 130B.
Further, the plurality of trenches 132, 134 and 136 may be formed and arranged in the up-down direction UD. For example, the first trench 134 can be formed in the center of the flat portion 130B, the second trench 132 can be formed on the flat portion 130B above the first trench 134, and the third trench 136 can be formed on the flat portion 130B below the first trench 134.
In addition, the first trench 134 can have a different width from the second trench 132 and/or the third trench 136. A width of the second trench 132 can be the same as or similar to a width of the third trench 136. Namely, one of the plurality of trenches 132, 134 and 136 can have a different width from another of the plurality of trenches 132, 134 and 136.
Further, the inclined portion 130DL can be extended from an edge of the flat portion 130B and include a plurality of inclined portions 130DL1 to 130DL4. The plurality of inclined portions 130DL1 to 130DL4 can be extended from edges of the flat portion 130B. For example, the first inclined portion 130DL1 can be extended from the upper edge of the flat portion 130B, the second inclined portion 130DL2 can be extended from the left edge of the flat portion 130B, the third inclined portion 130DL3 can be extended from the lower edge of the flat portion 130B, and the fourth inclined portion 130DL4 can be extended from the right edge of the flat portion 130B. In this instance, the plurality of inclined portions 130DL1 to 130DL4 can have different inclinations.
The flange 130P can be extended from the inclined portion 130DL. For example, a first flange 130P1 can be extended from the first inclined portion 130DL1, a second flange 130P2 can be extended from the second inclined portion 130DL2, a third flange 130P3 can be extended from the third inclined portion 130DL3, and a fourth flange 130P4 can be extended from the fourth inclined portion 130DL4.
Referring to
Referring to
A first row of projections 1322 can be arranged adjacent to the first inclined portion 130DL1 along the first inclined portion 130DL1 or a first long side 130LS1 of the frame 130, and a second row of projections 1321 can be arranged adjacent to the first row of projections 1322 along the first inclined portion 130DL1 or the first long side 130LS1 of the frame 130.
Further, a fourth row of projections 1361 can be arranged adjacent to the third inclined portion 130DL3 along the third inclined portion 130DL3 or a second long side 130LS2 of the frame 130, and a fifth row of projections 1362 can be arranged adjacent to the fourth row of projections 1361 along the third inclined portion 130DL3 or the first long side 130LS1 of the frame 130.
A third row of projections 1341 can be arranged between the second row of projections 1321 and the fifth row of projections 1362 along the first and second long sides 130LS1 and 130LS2 of the frame 130 or the left-right direction LR. In this instance, the third row of projections 1341 can be arranged in the center of the flat portion 130B of the frame 130 along the left-right direction LR of the frame 130.
Referring to
Referring to
Projections 1361 and 1362 can be sequentially formed along a longitudinal direction (i.e., the left-right direction LR) of the third trench 136. In this instance, the projections 1361 and 1362 can be arranged in a plurality of rows. The projections 1361 and 1362 can be formed in pairs. The projections 1361 and 1362 can form a pair, and a plurality of pairs of projections 1361 and 1362 can be sequentially formed along the longitudinal direction of the third trench 136.
A pair of projections 1361 and 1362 can be arranged in a width direction (i.e., the up-down direction UD) of the third trench 136. Namely, one projection 1362 of the pair of projections 1361 and 1362 can be formed close to the first trench 134 on a bottom surface of the third trench 136, and the other projection 1361 can be formed close to the third inclined portion 130DL3 on the bottom surface of the third trench 136. A distance DP between the pair of projections 1361 and 1362 can be more than two times a half of a width of the substrate 122 described above or below. The description of the third trench 136 can be equally applied to the second trench 132.
Further, a projection 1341 can have a head HD smaller than a diameter d of the insertion groove 122R. The head HD of the projection 1341 can also be formed to be larger than a width w of the coupling groove 122h. Hence, the projection 1341 can be inserted into the insertion groove 122R and can couple the substrate 122 to the frame 130 while sliding along the coupling groove 122h.
Referring to
Further, the coupling groove 122h can include guides 122G1 and 122G2 formed inside the coupling groove 122h. The first guide 122G1 can protrude from an inner surface of the coupling groove 122h and can be formed along a longitudinal direction of the coupling groove 122h. The second guide 122G2 can also face the first guide 122G1. In this instance, the second guide 122G2 can protrude from the inner surface of the coupling groove 122h and can be formed along the longitudinal direction of the coupling groove 122h.
A projection 1341 can have a head HD smaller than a diameter d of the insertion groove 122R. The head HD of the projection 1341 can be formed to be larger than a width w of the coupling groove 122h formed by the guides 122G1 and 122G2. Hence, the projection 1341 can be inserted into the insertion groove 122R and can couple the substrate 122 to the frame 130 while sliding along the coupling groove 122h and the guides 122G1 and 122G2.
Referring to
Referring to
Further, the width W1 of the first trench 134 can be substantially equal to or greater than the width of the substrate 122. The width W1 of the first trench 134 can also be substantially equal to or less than an outer diameter of the light assembly 124.
Referring to
The substrate 122 and/or the light assembly 124 on the third trench 136 can be disposed closer to the first trench 134. Alternatively, the substrate 122 and/or the light assembly 124 on the third trench 136 can be disposed closer to the third inclined portion 130DL3. This means that a distance between the light sources of the backlight unit can be adjusted.
For example, the substrate 122 and/or the light assembly 124 can be extended in the left-right direction LR and can be biased to an upper side of the third trench 134 based on the up-down direction UD. Alternatively, the substrate 122 and/or the light assembly 124 can be biased to a lower side of the third trench 134 based on the up-down direction UD.
Referring to
When the substrate 122 and/or the light assembly 124 are/is coupled to the third trench 134, the substrate 122 can be inserted into the first projection 1361. The second projection 1362 can also be positioned next to the substrate 122 and/or the light assembly 124 and can protrude from the bottom surface of the third trench 136. Namely, the substrate 122 can be inserted into or coupled to the first projection 1361 or the second projection 1362.
Referring to
Further, a height H1 of the first projection 1321 can be substantially the same as a height H2 of the second projection 1322, and a depth D2 of the second trench 132 can be substantially the same as the height H1 of the first projection 1321. A distance DP between the first projection 1321 and the second projection 1322 can also be larger than the width of the substrate 122.
Next,
Further, the frame 180 can include a plurality of skeletons 130F. For example, a first skeleton 130F1 and a second skeleton 130F2 can be disposed in the center of the flat portion 130B of the frame 130 in which the first skeleton 130F1 is positioned in parallel with the second skeleton 130F2. A third skeleton 130F3 and a fourth skeleton 130F4 can also be disposed on the side of the flat portion 130B of the frame 130 in which the third skeleton 130F3 is positioned in parallel with the fourth skeleton 130F4.
Further, the trenches 132, 134 and 136 can cross the skeletons 130F. In this instance, the skeletons 130F crossing the trenches 132, 134 and 136 can be further retracted to the rear of the flat portion 130B of the frame 130. A height difference formed by the flat portion 130B of the frame 130 and the skeletons 130F can be more than a height difference formed by the flat portion 130B of the frame 130 and the trenches 132, 134 and 136. Hence, the skeletons 130F can not affect the flatness of the substrate 122 coupled to the trenches 132, 134 and 136.
Referring to
The frame 130 can include a support portion 130SHP1 and a hook portion 130HK. The support portion 130SHP1 can be formed on the flange 130P1 of the frame 130, and the hook portion 130HK can be formed on the flange 130P1 of the frame 130. In this instance, the flange 130P1 can be a first flange 130P1. The support portion 130SHP1 and the hook portion 130HK can seem to overlap each other when viewed from a cross section of the frame 130. In this instance, the support portion 130SHP1 can further protrude to the inside of the frame 130 than the hook portion 130HK. Namely, the inclined portion 130DL1 can be closer to the support portion 130SHP1 than the hook portion 130HK. The support portion 130SHP1 (or 130SH) can be referred to as a first rib, and the hook portion 130HK can be referred to as a second rib.
Referring to
The frame 130 can include a support portion 130SHP4 and a hook portion 130HK. The support portion 130SHP1 and the hook portion 130HK can be formed on the flange 130P4 of the frame 130. In this instance, the flange 130P4 can be a fourth flange 130P4. In addition, the flange 130P4 can be a second flange 130P2 or a third flange 130P3.
The support portion 130SHP1 and the hook portion 130HK may seem to overlap each other when viewed from a cross section of the frame 130. In this instance, the support portion 130SHP1 can further protrude to the inside of the frame 130 than the hook portion 130HK. Namely, the inclined portion 130DL4 can be closer to the support portion 130SHP1 than the hook portion 130HK.
Next,
The second substrate 122B can be disposed on the upper side of the second trench 132. In other words, the second substrate 122B can be disposed on the second trench 132 at a location close to a first inclined portion 130DL1. The third substrate 122C can be disposed on the lower side of the third trench 136. In other words, the third substrate 122C can be disposed on the third trench 136 at a location close to a third inclined portion 130DL3.
Further, the second substrate 122B and the third substrate 122C can be separated from each other as far as possible within a range allowed by the second and third trenches 132 and 136. The first substrate 122A can be disposed in the center of the second substrate 122B and the third substrate 122C. The light assemblies 124 can be sequentially disposed on each of the substrates 122A, 122B and 122GB in the left-right direction. Hence, light provided by the light assemblies 124 can be uniformly distributed.
Referring to
In this instance, the light assembly 124 that is spaced apart from the fourth inclined portion 130DL4, can provide the effective optical characteristics even at a distance from the fourth inclined portion 130DL4 owing to an angle formed by the fourth inclined portion 130DL4 and the flat portion 130B of the frame 130. Namely, as the fourth inclined portion 130DL4 has a relatively steep inclination, light generated in the light assembly 124 can be uniformly distributed without forming a dark portion around the fourth inclined portion 130DL4.
Thus, the light assembly 124 can be spaced apart from the first inclined portion 130DL1 by a distance D1 shorter than a separation distance D3 between the light assembly 124 and the fourth inclined portion 130DL4 based on an angle between the first inclined portion 130DL1 and the flat portion 130B of the frame 130. Namely, the distance D1 can be less than the distance D3.
As the first inclined portion 130DL1 has a relatively gentle inclination, light provided by the light assembly 124 can form a dark portion around the first inclined portion 130DL1. However, as the distance between the light assembly 124 and the first inclined portion 130DL1 decreases, the optical characteristics can be improved. Namely, even when the first inclined portion 130DL1 has the relatively gentle inclination, light generated in the light assembly 124 can be uniformly distributed without forming a dark portion around the first inclined portion 130DL1.
Referring to
Referring to
Further, the first substrate 122A can be disposed on the lower side of the second trench 132. In other words, the first substrate 122A can be disposed on the second trench 132 at a position away from the first inclined portion 130DL1. The second substrate 122B can also be disposed on the upper side of the third trench 136. In other words, the second substrate 122B can be disposed on the third trench 136 at a position away from the third inclined portion 130DL3. In another aspect, the first substrate 122A on the second trench 132 can be disposed as close as possible to the first trench 134, and the second substrate 122B on the third trench 136 can be disposed as close as possible to the first trench 134.
Further, the first substrate 122A and the second substrate 122B can be disposed as close as possible to each other within a range allowed by the trenches 132 and 136. Further, the light assemblies 124 can be sequentially arranged on each substrate 122 in the left-right direction. Hence, although the substrate 122 and/or the light assembly 124 are omitted in the first trench 134, light provided by the light assemblies 124 can be uniformly distributed.
Referring to
Referring to
The light assembly 124 can include a lens extended in the up-down direction UD. When the substrate 122A and/or the light assembly 124 are positioned on the lower side of the second trench 132, the light assembly 124 can be far from the first inclined portion 130DL1. When the light assembly 124 is far from the first inclined portion 130DL1, a dark portion can be formed around the first inclined portion 130DL1 by the first inclined portion 130DL1 having the relatively gentler inclination than the fourth inclined portion 130DL4.
In this instance, the light assembly 124 having the lens of a shape extended in the up-down direction UD can improve the optical characteristics around the first inclined portion 130DL1 in spite of a change in a position of the substrate 122A in the second trench 132. Namely, the light assembly 124 can maintain the uniform distribution of light around the first inclined portion 130DL1.
As the position of the substrate 122A changes, a distance D11 between the light assembly 124 and the first inclined portion 130DL1 and a distance D33 between the light assembly 124 and the fourth inclined portion 130DL4 can change. This change can lead to a change in the optical characteristics that form a dark portion and a bright portion, causing the deterioration of image quality. Even when the position of the substrate 122A changes, the light assembly 124 can provide light with the uniform distribution for the first inclined portion 130DL1 and the fourth inclined portion 130DL4 owing to a change in the shape of the lens of the light assembly 124.
Referring to
Next,
The first holder 430 can have a protrusion 431. The first holder 430 can be fixed to the flat portion 130B. The protrusion 431 can protrude from the first holder 430 to the outside. One side of the substrate 122 can be placed on the first holder 430. The one side of the substrate 122 can be inserted into the first holder 430. The one side of the substrate 122 can be supported by the first holder 430 and the protrusion 431.
A second holder 440 can be positioned on the frame 130, and the second holder 440 can be positioned on the flat portion 130B. The second holder 440 can be formed on the flat portion 130B and be positioned between the first inclined portion 130DL1 and the first holder 430. The second holder 440 can also include a plurality of second holders 440. For example, the second holder 440 can form a row of second holders 440 in the left-right direction along the first long side LS1 of the frame 130 on the flat portion 130B of the frame 130.
In addition, the second holder 440 can have a protrusion 441. In particular, the protrusion 441 of the second holder 440 can be directed toward the protrusion 431 of the first holder 430. Namely, when the protrusion 431 of the first holder 430 is directed toward the upper side of the frame 130, the protrusion 441 of the second holder 440 can be directed toward the lower side of the frame 130. Hence, the substrate 122 can be fixed to the frame 130 by the first holder 430 and the second holder 440. In this instance, the first holder 430 and the second holder 440 can be alternately disposed. The first holder 430 and the second holder 440 can form a row C forming a pair.
Further, a plurality of first and second holders 430 and 440 of a first row C1 can be formed on the flat portion 130B adjacent to the first inclined portion 130DL1. A plurality of first and second holders 430 and 440 of a second row C2 can also be formed on the flat portion 130B adjacent to the third inclined portion 130DL3. Also, a plurality of first and second holders 430 and 440 of a third row C3 can be positioned between the plurality of first and second holders 430 and 440 of the first row C1 and the plurality of first and second holders 430 and 440 of the second row C2.
A plurality of first and second holders 430 and 440 of a fourth row C4 can be positioned between the plurality of first and second holders 430 and 440 of the first row C1 and the plurality of first and second holders 430 and 440 of the third row C3. Further, the plurality of first and second holders 430 and 440 of the fourth row C4 can be positioned adjacent to the plurality of first and second holders 430 and 440 of the first row C1.
A plurality of first and second holders 430 and 440 of a fifth row C5 can be positioned between the plurality of first and second holders 430 and 440 of the second row C2 and the plurality of first and second holders 430 and 440 of the third row C3. The plurality of first and second holders 430 and 440 of the fifth row C5 can be positioned adjacent to the plurality of first and second holders 430 and 440 of the second row C2.
Referring to
Referring to
Referring to
A plurality of first and second holders 430 and 440 of a first row C1 can be formed on the flat portion 130B adjacent to the first inclined portion 130DL1. Also, a plurality of first and second holders 430 and 440 of a second row C2 can be formed on the flat portion 130B adjacent to the third inclined portion 130DL3. Further, a plurality of first and second holders 430 and 440 of a third row C3 can be positioned between the plurality of first and second holders 430 and 440 of the first row C1 and the plurality of first and second holders 430 and 440 of the second row C2.
A plurality of first and second holders 430 and 440 of a fourth row C4 can be positioned between the plurality of first and second holders 430 and 440 of the first row C1 and the plurality of first and second holders 430 and 440 of the third row C3. Further, the plurality of first and second holders 430 and 440 of the fourth row C4 can be positioned adjacent to the plurality of first and second holders 430 and 440 of the first row C1.
A plurality of first and second holders 430 and 440 of a fifth row C5 can be positioned between the plurality of first and second holders 430 and 440 of the second row C2 and the plurality of first and second holders 430 and 440 of the third row C3. The plurality of first and second holders 430 and 440 of the fifth row C5 can be positioned adjacent to the plurality of first and second holders 430 and 440 of the second row C2.
Referring to
Referring to
For example, the support portion 130SH can be formed by partially bending the flange 130P and the sidewall 130SW of the frame 130. Further, the flange 130P and the side wall 130SW of the frame 130 can be cut and bent to form the support portion 130SH. Hence, an empty space 1300P2 is formed between the support portion 130SH and the sidewall 130SW.
When an overall thickness of the frame 130 decreases, a thickness of the support portion 130SH included in the frame 130 can also decrease. This can lead to a reduction in rigidity of the support portion 130SH. Thus, the support portion 130SH can be spaced apart from an edge formed by the flange 130P and the sidewall 130SW by a predetermined distance and positioned inside the flange 130P. The support portion 130SH can also be positioned adjacent to the optical layer 123.
The support portion 130SH can be entirely bent and include protrusions 130SHP1 and 130SHP2. The protrusions 130SHP1 and 130SHP2 protrude from the sidewall 130SW toward the optical layer 123 and can be formed by pressing the support portion 130SH. A plurality of protrusions 130SHP1 and 130SHP2 can also be formed. Further, the first protrusion 130SHP1 can protrude to the inside of the frame 130, and the second protrusion 130SHP2 can protrude to the inside of the frame 130. The first protrusion 130SHP1 and the second protrusion 130SHP2 can also protrude at the same protrusion level. Namely, the first protrusion 130SHP1 and the second protrusion 130SHP2 can simultaneously support the side of the optical layer 123.
Further, the support portion 130SH can secure sufficient rigidity for supporting the optical layer 123 due to the overall shape of the support portion 130SH. Also, a hook portion 130HK can be positioned on the flange 130P of the frame 130 and be formed on a portion of the flange 130P of the frame 130. The hook portion 130HK can also be formed by bending a portion of the flange 130P of the frame 130.
In addition, the hook portion 130HK can be formed by partially bending the flange 130P and the sidewall 130SW of the frame 130. The flange 130P and the side wall 130SW of the frame 130 can be cut and bent to form the hook portion 130HK. Hence, an empty space 1300P1 can be formed between the hook portion 130HK and the sidewall 130SW.
Further, the hook portion 130HK can be spaced apart from an edge formed by the flange 130P and the sidewall 130SW by a predetermined distance and positioned inside the flange 130P. The hook portion 130HK can also be positioned adjacent to the optical layer 123. The sidewall 130SW positioned below the support portion 130SH or the hook portion 130HK can be bent or can form a stepped portion. Hence, the support portion 130SH and/or the hook portion 130HK can provide a clearance while maintaining the rigidity of the sidewall 130SW.
Referring to
As shown in
Referring to
The optical layer 123 can be supported by the support portion 130SH. When the support portion 130SH supporting the optical layer 123 is collapsed due to an excessive load or an external force or an impact that can occur in the movement, the hook portion 130HK can be a secondary supporting mechanism for supporting the optical layer 123.
Referring to
The hook portion 130HK can secure sufficient rigidity for supporting the optical layer 123 due to the overall shape of the hook portion 130HK. Further, even when an external force or an impact is applied to the optical layer 123 supported by the hook portion 130HK and the support portion 130SH, a fixed state of the optical layer 123 can be maintained. Namely, the durability of the display device 100 can be further improved.
Referring to
A fifth support portion 130SH5 can be positioned on the second short side SS2 and can be adjacent to the second corner C2. A sixth support portion 130SH6 can be positioned on the second short side SS2 and can be adjacent to the third corner C3. A seventh support portion 130SH7 can be positioned on the first short side SS1 and can be adjacent to the first corner C1. An eighth support portion 130SH8 can be positioned on the first short side SS1 and can be adjacent to the fourth corner C4. In this instance, the fifth to eighth support portions 130SH5 to 130SH8 can be omitted.
Referring to
A fifth support portion 130SH5 can be positioned in the center of the second short side SS2. A sixth support portion 130SH6 can be positioned in the center of the first short side SS1. In this instance, the fifth support portion 130SH5 and/or the sixth support portion 130SH6 can be omitted. A number or a position of hook portions 130HK described above can be changed.
The optical sheet 125 can be positioned in front of the optical layer 123. The optical sheet 125 can be placed on the front surface of the optical layer 123. The back surface of the optical sheet 125 can contact the front surface of the optical layer 123. In this instance, the coupling portion 125d of the optical sheet 125 can be inserted into the hook portion 130HK, and thus a position of the optical sheet 125 can be fixed.
The guide panel 117 can be positioned adjacent to the side and/or the front surface of the frame 130. The guide panel 117 can include a horizontal portion 117H and a vertical portion 117V. The horizontal portion 11711 can be positioned in front of the flange 130P3 of the frame 130. The horizontal portion 117H can be positioned on the front surface of the optical layer 123 and/or the optical sheet 125.
The horizontal portion 117H can include pressing portions 117P. A first pressing portion 117P1 can press a portion of the front surface or a portion of the periphery of the front surface of the optical layer 123 and/or the optical sheet 125. A second pressing portion 117P2 can press the coupling portion 125d of the optical sheet 125. Hence, the optical layer 123 and/or the optical sheet 125 can be firmly coupled to the frame 130. The horizontal portion 11711 can have a groove 1171. The support portion 130SH or the hook portion 130HK can be inserted into the groove 1171. Thus, the guide panel 117 can be coupled to the frame 130. The vertical portion 117V can be positioned adjacent to the sidewall 130SW of the frame 130. The vertical portion 117V can face the sidewall 130SW of the frame 130. The vertical portion 117V can be extended from the horizontal portion 117H. An adhesive member AD can be fixed to a portion of a front surface of the horizontal portion 117H. The adhesive member AD can be, for example, a double-sided tape.
Referring to
The holder 400 can be fixed to the back surface of the inclined portion 130DL3 of the frame 130 by an adhesive member. The holder 400 can include a body 402, a clip 404, and an adhesive portion AD. The holder 400 can be fixed by attaching the adhesive portion AD to the back surface of the inclined portion 130DL3 of the frame 130. The adhesive portion AD can be, for example, a double-sided tape. A substrate 110PC can be, for example, an S-PCB and can be inserted into the holder 400.
Referring to
The clip 404 can include a palm 404c, a first finger 404a, and a second finger 404b. The palm 404c can be equal to or slightly larger than a width of the substrate 110PC. Namely, the palm 404c can provide some clearance when the substrate 110PC is placed on the palm 404c. The first finger 404a can bend toward the second finger 404b. The second finger 404b can bend toward the first finger 404a. The first finger 404a can include an inclined portion 4041. The inclined portion 4041 of the first finger 404a can provide a path into which the substrate 110PC is inserted. The second finger 404b can include an inclined portion 4042. The inclined portion 4042 of the second finger 404b can provide a path through which the substrate 101PC is inserted into the second finger 404b in a state where the substrate 101PC is inserted into the first finger 404a.
In other words, the first finger 404a and the second finger 404b can be extended from both ends of the palm 404c. In this instance, the first finger 404a and the second finger 404b can bend so that they face each other. The first inclined portion 4041 can be formed at the first finger 404a, and the second inclined portion 4042 can be formed at the second finger 404b. The first inclined portion 4041 can be formed on a surface of the first finger 404a facing the palm 404c. The second inclined portion 4042 can be formed on a surface of the second finger 404b which does not face the palm 404c and faces the outside.
The first hook 406 can be positioned opposite the clip 404 with the body 402 interposed therebetween. For example, the first hook 406 can be entirely formed in a shape of an arrowhead or a wedge. The first hook 406 can include a column 406a and a head 406b. The column 406a can protrude from one side or one surface of the body 402. The head 406b can be formed on the column 406a. The head 406b can be formed on the top of the column 406a. A diameter of the head 406b can be greater than a diameter of the column 406a.
Inclined portions 4061 and 4062 can be formed at the periphery or an edge of the head 406b. Namely, the head 406b can include a first inclined portion 4061 and a second inclined portion 4062. The first inclined portion 4061 can be positioned opposite the second inclined portion 4062. In a three-dimensional viewpoint, the first inclined portion 4061 can be connected to the second inclined portion 4062. Namely, the first inclined portion 4061 and the second inclined portion 4062 can be formed as a single surface.
The second hook 408 can include a vertical portion 408a and a hook portion 408b. The vertical portion 408a can protrude from the body 402. The hook portion 408b can bend in a different direction from a protruding direction of the vertical portion 408a and can be extended from the vertical portion 408a. For example, the second hook 408 can entirely have a hook shape.
Referring to
A first fixing hole 130h2 can be formed to pass through the inclined portion 130DL3. The first fixing hole 130h2 can be formed in a circular shape so that the first hook 406 can be inserted into the first fixing hole 130h2. A second fixing hole 130h1 can be formed adjacent to the first fixing hole 130h2. The second fixing hole 130h1 can be formed to pass through the inclined portion 130DL3. The second fixing hole 130h1 can be formed in a rectangular shape so that the second hook 408 can be inserted into the second fixing hole 130h1. The second fixing hole 130h1 can have a different shape from the first fixing hole 130h2. In this instance, the second fixing hole 130h1 can be formed larger than the second hook 408.
In the holder 400, the second hook 408 can be inserted into the second fixing hole 130h1, and then the first hook 406 can be inserted into the first fixing hole 130h2. Hence, the holder 400 fixed to the back surface of the frame 130 can be prevented from being distorted from its position or can be prevented from being detached from the frame 130. When the substrate 110PC is inserted into the holder 400, the substrate 110PC cannot move by an external force or an impact owing to a stable fixing of the holder 400. Further, a damage of the member layer MB can be prevented.
The display device according to the present disclosure provides several advantages such maintaining the initial image quality of the display device by improving the durability of the display device, varying an arrangement of light sources of a backlight unit, improving the light efficiency of the backlight unit, securing the structural rigidity of a slim frame, improving a support structure of an optical layer, improving the assembly convenience of a holder and prevent the detachment of the holder, and improving the durability of the display device against an external impact.
The foregoing embodiments are merely examples and are not to be considered as limiting the present disclosure. The present teachings can be readily applied to other types of methods and apparatuses. The features, structures, methods, and other characteristics of the embodiments described herein may be combined in various ways to obtain additional and/or alternative embodiments. Certain embodiments or other embodiments of the invention described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the invention described above may be combined or combined with each other in configuration or function.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
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| 10-2016-0084037 | Jul 2016 | KR | national |
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