1. Field of the Invention
The present invention relates to the field of displaying techniques, and in particular to a display back frame and liquid crystal display device.
2. The Related Arts
The known liquid crystal display device usually comprises mold frame, back frame, liquid crystal panel, optical film and light-guiding plate (LGP).
Among the components, the mold frame and back frame of the liquid crystal display panel are mainly for fixing optical components, such as, light source, light-guiding plate and optical film and for carrying liquid crystal panel.
However, the known back frame of liquid crystal display device is usually made of a monolithic structure, manufactured by metal stamping or plastic inject molding techniques so that the back frame is usually heavier in weight. In addition, a large-sized back frame usually requires larger stamping equipments and larger molds with complex structure, thus, a higher cost. Furthermore, the monolithically structured back frame requires more storage and transport cost and results in less efficiency in storage in transport.
Even further, when fixing optical components, such as, light source, light-guiding plate and optical film and for carrying liquid crystal panel, the back frame must be used with mold frame so that the liquid crystal display device has a higher cost as well as more assembly time leading to reduced efficiency.
The technical issue to be addressed by the present invention is to provide a display back frame and liquid crystal display device, which reduce required space during storage and transport to improve transport and storage efficiency to as well as save the use of mold frame to reduce cost.
The present invention provides a display back frame, which comprises: a plurality of splicing elements spliced together, at least a part of splicing elements being connected through rotation mechanism so that the display back frame able to switch between a normal usage state and a folded state, the display back frame in the folded state being smaller in size than in the normal usage state, wherein the splicing element comprising main part and stop wall, the stop wall comprising bottom part, side wall and top part, the bottom part and outer edge of the main part being connected levelly, the top part disposed in parallel with the bottom part with a spacing gap, the side wall being disposed between the top part and the bottom part, surface of the main part facing the top part being disposed with a first bump and a second bump, wherein height of the first bump being higher than height of the second bump.
According to a preferred embodiment of the present invention, in the normal usage state, the plurality of splicing elements comprise: a first support frame and a second support frame disposed in parallel; a third support frame and a fourth support frame disposed in parallel; the third support frame connected perpendicularly respectively to one end of each of the first support frame and the second support frame; and the fourth support frame connected perpendicularly respectively to the other end of each of the first support frame and the second support frame.
The present invention provides a display back frame, which comprises: a plurality of splicing elements spliced together, at least a part of splicing elements being connected through rotation mechanism so that the display back frame able to switch between a normal usage state and a folded state, the display back frame in the folded state being smaller in size than in the normal usage state, wherein the splicing element comprising main part and stop wall, the stop wall comprising bottom part, side wall and top part, the bottom part and outer edge of the main part being connected levelly, the top part disposed in parallel with the bottom part with a spacing gap, the side wall being disposed between the top part and the bottom part, surface of the main part facing the top part being disposed with a first bump.
According to a preferred embodiment of the present invention, the surface of the main part facing the top part is also disposed with a second bump, wherein height of the first bump is higher than height of the second bump.
According to a preferred embodiment of the present invention, in the normal usage state, the plurality of splicing elements comprise: a first support frame and a second support frame disposed in parallel; a third support frame and a fourth support frame disposed in parallel; the third support frame connected perpendicularly respectively to one end of each of the first support frame and the second support frame; and the fourth support frame connected perpendicularly respectively to the other end of each of the first support frame and the second support frame; a plurality of auxiliary support frames are disposed between the first support frame and the second support frame, with both ends of each of the auxiliary support frames connected respectively to the first support frame and the second support frame.
According to a preferred embodiment of the present invention, the first support frame comprises a first main part and a first extension part extending from one end of the first main part; the second support frame comprises a second main part and a second extension part extending from one end of the second main part; the first extension part and one end of the third support frame, the other end of the third support frame and one end of the second main part away from the second extension part, the second extension part and one end of the fourth support frame, the other end of the fourth support frame and one end of the first main part away from the first extension part are all connected respectively through the rotation mechanism.
According to a preferred embodiment of the present invention, in the folded state, the first main part is connected levelly to the fourth support frame and is located between the first extension part and the second extension part; the second main part is connected levelly to the third support frame and is located between the first extension part and the second extension part; wherein the total length of first main part levelly connected to the fourth support frame is equal to the total length of second main part levelly connected to the third support frame.
The present invention provides a liquid crystal display device, which comprises: a display back frame, formed by splicing a plurality of splicing elements together, at least a part of splicing elements being connected through rotation mechanism so that the display back frame able to switch between a normal usage state and a folded state, the display back frame in the folded state being smaller in size than in the normal usage state, wherein the splicing element comprising main part and stop wall, the stop wall comprising bottom part, side wall and top part, the bottom part and outer edge of the main part being connected levelly, the top part disposed in parallel with the bottom part with a spacing gap, the side wall being disposed between the top part and the bottom part, surface of the main part facing the top part being disposed with a first bump; light-guiding plate, disposed inside the display back frame, comprising a light entering surface and a light exiting surface; optical film; disposed on the light-guiding plate; light source, disposed on side wall of the display back frame facing the light entering surface of light-guiding plate; liquid crystal panel, disposed on the top part of the back frame of liquid crystal display device; and front frame, assembled with the display back frame, for sandwiching liquid crystal panel firmly between the front frame and the display back frame.
The efficacy of the present invention is that to be distinguished from the state of the art. The display back frame of the present invention can switch between a normal usage state and a folded state with the display back frame in the folded state being smaller in size than in the normal usage state, as well as uses stop wall and first bump to fix and support light-guiding plate, optical film and liquid crystal panel. As such, through the above disposition, the present invention can reduce required space during storage and transport to improve transport and storage efficiency, as well as save the use of mold frame to simplify assembly and improve assembly efficiency to reduce cost.
To make the technical solution of the embodiments according to the present invention, a brief description of the drawings that are necessary for the illustration of the embodiments will be given as follows. Apparently, the drawings described below show only example embodiments of the present invention and for those having ordinary skills in the art, other drawings may be easily obtained from these drawings without paying any creative effort. In the drawings:
Referring to
In the instant embodiment, each of first main splicing elements 110, 130 and second main splicing elements 120, 140 comprises main part and stop wall, with specific structure shown in
Refer to
Refer to
At the junction points between first main splicing elements 110, 130 and second main splicing elements 120, 140 are disposed with position-stopping mechanisms 160 so as to fasten first main splicing elements 110, 130 and second main splicing elements 120, 140 in the normal usage state. In the instant embodiment, position-stopping mechanisms 160 are disposed at the junction points between first main splicing elements 110, 130 and second main splicing elements 120, 140 to provide better fastening to first main splicing elements 110, 130 and second main splicing elements 120, 140. In other embodiments, to save cost or reduce complexity, position-stopping mechanisms 160 can also be disposed at one or more locations for fastening element. In the instant embodiment, rotation mechanism 150 and position-stopping mechanism 160 can be screw, rivet, bolt or any other equivalent fastening element.
Referring to
Referring to
In the instant embodiment, two ends of first auxiliary splicing elements 210, 220 are respectively connected to two first main splicing elements 110, 130 through rotation mechanism 150; two ends of second auxiliary splicing element 230 are respectively connected to two first auxiliary splicing elements 210, 220 through rotation mechanism 150. Similarly, position-stopping mechanisms 160 are disposed at the junction points between first auxiliary splicing elements 210, 220 and first main splicing elements 110, 130, and between auxiliary splicing element 230 and two first auxiliary splicing elements 210, 220 to provide better fastening to the display back frame. Other embodiments may comprise one or more first auxiliary splicing elements, or more second auxiliary elements, and the numbers of position-stopping mechanisms 160 can be less.
Because first auxiliary splicing elements 210, 220 and second auxiliary splicing elements 230 are disposed within the outer frame formed by first main splicing elements 110, 130 and second main splicing elements 120, 140, and are in parallel with first main splicing elements 110, 130 or second main splicing elements 120, 140, therefore, the display back frame in this embodiment can also switch between the normal usage state of
Referring to
Referring to
In normal usage state, first main splicing elements 311, 313 are disposed in parallel in normal usage state, and second main splicing elements 312, 314 are disposed in parallel to form outer frame of the display back frame. In the instant embodiment, one end of each of first main splicing elements 311, 313 and second main splicing elements 312, 314 is connected to corresponding second auxiliary mechanism 332 through rotation mechanism 350 respectively, and the other end is connected to corresponding second auxiliary mechanism 332 through stop mechanism 360. Auxiliary splicing elements 321, 322, 323, 324 are disposed in a cross manner, with one end connected to corresponding second auxiliary mechanism 332 through rotation mechanism 350 and the other end connected to first auxiliary mechanism 331 through rotation mechanism 350.
Referring to
In other embodiments, the third embodiment can be simplified, for example, by cancelling second auxiliary mechanism 332. One end of first main splicing elements 311, 313 and one end of second main splicing elements 312, 314 are connected respectively to one end of corresponding auxiliary splicing elements 321, 322, 323, 324 through rotation mechanism 350. Alternatively, auxiliary splicing elements 321, 323 are replaced by an auxiliary splicing element, auxiliary splicing elements 322, 324 are replaced by another auxiliary splicing element and rotation mechanism 350 is placed between the two for connection.
Referring to
In normal usage state, first support frame 510 and second support frame 520 are disposed in parallel, and third support frame 530 and fourth support frame 540 are disposed in parallel. First support frame 510, second support frame 520, third support frame 530 and fourth support frame 540 are spliced to form the rectangular outer frame of the display back frame. Auxiliary support frame 550 is disposed between first support frame 510 and second support frame 520, with two ends connected respectively to first support frame 510 and second support frame 520. Auxiliary support frame 550 is in parallel with third support frame 530 and fourth support frame 540. The number of auxiliary support frames 550 can be single or plural.
Also referring to
In the instant embodiment, second support frame 520 has the same structure as first support frame 510, that is, second support frame 520 comprises a second main part 521 and a second extension part 522, extending perpendicularly from one end of second main part 521.
Refer to
In comparison with
As such, the display back frame of the instant embodiment can also switch between the normal usage state shown in
In other embodiments, those having ordinary skills in the art may easily vary the structures and elements of these drawings without paying any creative effort as long as some of the splicing elements are able to rotate through rotation mechanism so that the back plate can switch between a normal usage state and a folded state to achieve the object of the present invention, and not limited to embodiments shown in
Referring to
In the instant embodiment, display back frame 610 can be any of the display back frames of aforementioned embodiments. Light-guiding plate 611 comprises a light entering surface and a light exiting surface and is disposed inside the display back frame 610. Optical film 612 is disposed on the light-guiding plate 611. Light source 613 is disposed on side wall 619 of the display back frame 610 facing the light entering surface of light-guiding plate 611. Liquid crystal panel 614 is disposed on the top part 620 of display back frame 610. In the instant embodiment, a buffer structure 618 is disposed between liquid crystal panel 614 and top part 620 of display back frame 610 to reduce the friction between display back frame 610 and liquid crystal panel 614 to protect liquid crystal panel 614 more effectively.
In the present embodiment, front frame 615 is assembled with display back frame 610. Specifically, front frame 615 and wide wall 619 of display back frame 610 are fastened through a plurality of buckles 616 so as to sandwich liquid crystal panel 614 firmly between front frame 615 and display back frame 610.
In the present embodiment, light-guiding plate 611 and optical film 612 are further fastened by tape and rubber structure, as specifically shown in
In
To distinguish from the known liquid crystal display device, the present invention uses stop wall and first bump to fasten and support light-guiding plate, optical film and liquid crystal panel to eliminate the use of mold frame and improves the assembly efficiency and reduce cost. In addition, the display back frame of the present invention can switch between a normal usage state and a folded state with the display back frame in the folded state being smaller in size than in the normal usage state to reduce required space during storage and transport to improve transport and storage efficiency.
Embodiments of the present invention have been described, but not intending to impose any unduly constraint to the appended claims. Any modification of equivalent structure or equivalent process made according to the disclosure and drawings of the present invention, or any application thereof, directly or indirectly, to other related fields of technique, is considered encompassed in the scope of protection defined by the clams of the present invention.
Number | Date | Country | Kind |
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2012 1 0255941 | Jul 2012 | CN | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/CN2012/079616 | 8/3/2012 | WO | 00 | 8/25/2012 |
Publishing Document | Publishing Date | Country | Kind |
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WO2014/015533 | 1/30/2014 | WO | A |
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