Patent Grant
11175535
Embodiments of the present disclosure generally relate to liquid crystal display technology, and in particular to a backlight module, a liquid crystal display and a spliced display device.
At present, a size of a single display screen is no greater than 80 inches. With the popularity of display technology and the increasing need for the size of display screen, screens splicing is becoming workable way to realize large-area display.
A splicing screen means that smaller-sized screens are spliced into a super-sized screen by means of a mode of array installation. To satisfy different needs in different application scenarios, the quantity of splicing screens can be decided according to actual demands, and the splicing screens are further spliced into large screens of various sizes. Nevertheless, because of the technical restriction, a black edging of a certain width without displaying anything will be left around a periphery of a display screen. When splicing a plurality of display screens together, it inevitably that a splicing seam with twice width at black edging would be left between screens. As a result, the image is segmented, which seriously damages the continuity and integrity of the image and affects users' visual experience.
In the related art, in order to achieve seamless splicing, glass should be placed in front of the splicing screen to eliminate the splicing seam through optical refraction. However, parts of the image will be deformed when using the optical method to eliminate the splicing seam. Therefore, it is necessary to reduce the width of the joint physically.
The present disclosure provides a backlight module, a liquid crystal display and a spliced display device, which can reduce a width of a seam between the two adjacent spliced screens by half physically.
To solve the above-mentioned problem, a technical scheme adopted by the present disclosure is to provide a method for manufacturing a liquid crystal display; the liquid crystal display may include a display panel and a backlight module. The display panel may include a display area and a non-display area disposed around the display area. The backlight module may include a backlight panel, and the backlight panel may include an opening and a frame; the opening may correspond to the display area of the display panel. The frame may correspond to the non-display area of the display panel. The first extension portion extends from the first sub-frame in a direction away from opening, and a width of the first extension portion is equal to a width of the non-display area of the display panel; the backlight module may further include a light source, a diffusion plate, an optical film, and a support column supporting the diffusion plate and the optical film disposed in the backlight panel.
In order to solve the above technical problem, another technical solution adopted by the present disclosure provides a backlight module. The backlight module may include a backlight panel, and the backlight panel may include an opening and a frame; the opening may correspond to the display area of the display panel. The frame may correspond to the non-display area of the display panel. The first extension portion extends from the first sub-frame in a direction away from opening.
In order to solve the above technical problems, another technical solution adopted by the present disclosure provides a spliced display device, which may be spliced by a plurality of liquid crystal displays. The liquid crystal display may include a display panel and a backlight module. The display panel may include the display area and the non-display area disposed around the display area; the backlight module may include a backlight panel, and the backlight panel may include an opening and a frame; the opening may correspond to the display area of the display panel. The frame correspond to the non-display area of the display panel. The first extension portion extends from the first sub-frame in a direction away from opening.
In the present disclosure, a backlight module, a liquid crystal display and a spliced display device are provided. The first extension portion and the second extension portion may be disposed on the frame of the backlight module. The first extension of one backlight module may be vertically overlapped with the second extension of another backlight module, so that the width of the seam is the width of one extension portion, that is, half of the traditional side-by-side splicing.
In order to illustrate more clearly the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings. In the drawings:
The technical solutions in the embodiments of the present disclosure will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting. In addition, it should be noted that, for the convenience of description, only some but not all of the structures related to the present disclosure are shown in the drawings. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without departing from the inventive scope are the scope of the present disclosure.
The terms “first”, “second”, and the like in the present disclosure are used to distinguish different objects, and are not intended to describe a particular order. Furthermore, the terms “comprises”, “comprising” and “comprising” are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or, optionally, other steps or units inherent to these processes, methods, products or equipment.
The term “an embodiment” recited in the present disclosure herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included at least one embodiment of the present disclosure. The appearances of the terms in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
Referring to
Further, the frame 111 may include a second sub-frame 111c opposite to the first sub-frame 111a, and a second extension portion 111d may extend from the second sub-frame 111c in a direction toward the opening 112. In this embodiment, the first sub-frame 111a and the second sub-frame 111c are equal in height and symmetrical, and the first extension portion 111b and the second extension portion 111d are equal in width and symmetrical.
It can be understood that, in this embodiment, the opening 112 of the backlight panel 11 may correspond to the display area 20a of the display panel 20; the frame 111 may correspond to the non-display area 20b of the display panel 20; the first extension portion 111b may extend in a direction away from the opening 112; the second extension portion 111d may extend in a direction toward the opening 112. Therefore, the first extension portion 111b and the second extension portion 111d may correspond to the non-display area 20b on both sides of the display panel 20 respectively.
Referring to
Referring further to
Optionally, in this embodiment, the first support portion 15 may be made of transparent material, and the boss is not limited in materials. Due to the arrangement of the first support portion 15, the light emitted from the light source 12 in this embodiment may not be blocked by the first support portion 15, and the edge of the display area 20a in the display panel may not be dark. The first support portion 15 in this embodiment may specifically be in shape of a column, and alternatively may in shape of a taper. Of course, in other embodiments, the first supporting portion 15 may also be in shape of a cylinder, a rectangular parallelepiped or the like. The shape of the first supporting portion 15 will not be further limited herein.
Combined with
It can be understood that, in the related art, the two sides of the liquid crystal display are provided with the boss structure as shown in
Referring to the splicing of the liquid crystal display in the present embodiment, in combination with
Therefore, with such a splicing method, in the embodiments of the present disclosure, the seam width L2 between the display areas respectively of two adjacent liquid crystal displays may be half of L1.
In the above embodiment, the shape of the backlight panel is changed, and a receiving space may be defined outside the frame of the backlight panel. In this way when a plurality of liquid crystal displays need to be spliced together to form an oversized screen, only the manner as shown in
Referring to
The frame 111 may include a first sub-frame 111a and a second sub-frame 111c opposite to the first sub-frame 111a.
Further, a first extension portion 111b may extend from the first sub-frame 111a in a direction away from the opening 112. A third extension portion 111e may extend from an end of the first extension portion 111b that is away from the first sub-frame 111a in a direction toward the display panel 20. A fourth extension portion 111f may extend from an end of the third extension portion 111e that is away from the first extension portion 111b in a direction toward the opening 112. That is to say, the first sub-frame 111a, the first extension portion 111b, the third extension portion 111e, and the fourth extension portion 111f may connected to one another successively. Likewise, a second extension portion 111d may extend from the second sub-frame 111c in the direction towards the opening 112. Heights of the first sub-frame 111a and the third extension portion 111e may correspond to that of the second sub-frame 111c respectively, and the fourth extension portion 111f and the second extension portion 111d may be symmetrically disposed.
In this embodiment, a receiving space defined by the first extension portion 111b, the third extension portion 111e and the fourth extension portion 111f may be configured to receive the diffusion plate and the optical film. The first extension portion 111b may be served as a step for disposing the diffusion plate and the optical film, such that there is no need to additionally provide a boss and a support column.
Further, the first sub-frame 111a and the first extension portion 111b may be still enclosed to define a receiving space outside the backlight panel 11, without arranging additional bosses and supporting columns. In the manner shown in
The present embodiment may be the same as the above embodiment, and the seam width can be reduced so that the seam width after splicing can be half of the conventional side-by-side splicing. However, due to the presence of the receiving space defined by the first extension portion 111b, the third extension portion 111e, and the fourth extension portion 111f, a thickness of the splicing portion may be increased.
Referring to
Further, the frame 111 may include a first sub-frame 111a and a second sub-frame 111c opposite to the first sub-frame 111a. A first extension portion 111d may extend from the first sub-frame 111a in a direction toward the opening 112. A second extension portion 111d may extend from the second sub-frame 111c in a direction toward the opening 112. The first extension portion 111b and the second extension portion 111d may be symmetrical.
The backlight module may further include a light source 12, a diffusion plate 13, an optical film 14, and a plurality of support columns 15 (also called as support posts) supporting the diffusion plate 13 and the optical film 14 disposed in the backlight panel 11. The plurality of support columns 15 may include a first support column 15a and a second support column 15b, which are transparent and equal in height. The first support column 15a may be adjacent to the first sub-frame 111a, and the second support column 15b may be adjacent to the second sub-frame 111c, the first support column 15a may be configured to support one ends respectively of the diffusion plate 13 and the optical film, and the second support column 15b may be configured to support the other ends of the diffusion plate 13 and the optical film 14 respectively.
Optionally, the width of the first extension portion 111b may be equal to that of the second extension portion 111d. The widths of the first extension portion 111b and the second extension portion 111d may be equal to that of the non-display area 20b of the display panel.
It can be understood that, in the related art, the two sides of the liquid crystal display are provided With the boss structure as shown in
Referring to the splicing of the liquid crystal display in the present embodiment, in combination with
Having two receiving spaces A and C, the liquid crystal display in the present embodiment can be spliced with the liquid crystal display in the related art. As shown in
Therefore, with such a splicing method, in the embodiments of the present disclosure, the seam width L2 between the display areas respectively of two adjacent liquid crystal displays may be half of L1. Besides, it is possible to use the liquid crystal display in the related art, such that the cost may be reduced.
It can be understood that, in the above embodiments, the backlight module in the liquid crystal display can be manufactured and sold as products solely. The combining and splicing principles are similar to the above embodiments. The details are not described herein again.
Referring to
In the present embodiment, the spliced display device 80 may be formed by splicing nine liquid crystal displays 81 arranged in an array. Specifically, the array may be in the form of three rows and three columns. Of course, in other embodiments, the number of liquid crystal displays 81 can be determined according to the size of the display device that is specifically required.
Specifically, the splicing manner of the liquid crystal display in this embodiment can refer to the embodiments respectively described in
In summary, those skilled in the art can easily understand that the present disclosure provides a backlight module, a liquid crystal display, and a spliced display device. By defining a receiving space in the backlight module, another liquid crystal display can be received; the space occupied by the non-display area can be reduced when the two liquid crystal displays are spliced together. Further, in the splicing manner, the first extension portion and the second extension portion are disposed on the frame, and the first extension portion of one backlight module and the second extension portion of another backlight module may be vertically overlapped and spliced together, so that the seam width may be equal to the width of one extension portion, that is, half of the traditional side-by-side splicing.
The above description is only the embodiments of the present disclosure without limiting the scope of the patent application. The scope of patent protection of the present disclosure includes any equivalent structure or equivalent process transformation which are made by using the specification and the drawings of the present disclosure, and also includes direct or indirect application to other related technologies.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810316422.8 | Apr 2018 | CN | national |
The present disclosure is a continuation-application of International (PCT) Patent Application No. PCT/CN2018/092071, filed on Jun. 21, 2018, which claims foreign priority of Chinese Patent Application No. 201810316422.8 filed on Apr. 10, 2018 in the State Intellectual Property Office of China, the entire contents of which are hereby incorporated by reference.
| Number | Name | Date | Kind |
|---|---|---|---|
| 20040228111 | Kuo | Nov 2004 | A1 |
| 20050151895 | Fukuyoshi | Jul 2005 | A1 |
| 20080079657 | Kee et al. | Apr 2008 | A1 |
| 20080158468 | Kim | Jul 2008 | A1 |
| 20120120325 | Shimizu | May 2012 | A1 |
| 20170123274 | Jeong | May 2017 | A1 |
| 20170192273 | Fan | Jul 2017 | A1 |
| 20180045881 | Gotou | Feb 2018 | A1 |
| Number | Date | Country |
|---|---|---|
| 101424823 | May 2009 | CN |
| 103578371 | Feb 2014 | CN |
| 104090405 | Oct 2014 | CN |
| 20080072388 | Aug 2008 | KR |
| Number | Date | Country | |
|---|---|---|---|
| 20190310517 A1 | Oct 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2018/092071 | Jun 2018 | US |
| Child | 16109788 | US |
