CN210639391U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN210639391U CN210639391U CN201921136751.0U CN201921136751U CN210639391U CN 210639391 U CN210639391 U CN 210639391U CN 201921136751 U CN201921136751 U CN 201921136751U CN 210639391 U CN210639391 U CN 210639391U
- Authority
- CN
- China
- Prior art keywords
- backlight module
- heat dissipation
- light
- backlight
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 claims abstract description 59
- 239000012788 optical film Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight module and a liquid crystal display device, wherein the backlight source of the backlight module comprises a plurality of light bars, and a first light source group and a second light source group are arranged on the substrate of the backlight module in parallel; the positions of the heat dissipation structures correspond to the positions of the light bars one by one and the heat dissipation structures are arranged in a protruding mode relative to the bottom plate in the direction close to the backlight source; the light guide plate is provided with a groove at a position corresponding to the light bar, and the shape of the groove is matched with that of the heat dissipation structure; the heat dissipation structure at least comprises a first bracket and a second bracket which are separated from each other, wherein the first bracket is provided with a first inclined surface, and the second bracket is provided with a second inclined surface opposite to the first inclined surface; the first light source group is correspondingly arranged on the first inclined plane, and the second light source group is correspondingly arranged on the second inclined plane; the thickness of the backlight module is not increased, and the light mixing distance of the light bar is increased, so that the backlight module can realize a uniform surface light source; in addition, a heat dissipation structure is additionally arranged between the light bar and the back plate, so that heat generated by the working of the LED chip is effectively dissipated.
Description
Technical Field
The utility model relates to a liquid crystal display technology field especially relates to a backlight unit and liquid crystal display device including this backlight unit.
Background
Most of Liquid Crystal Display devices (LCDs) in the existing market are backlight type Liquid Crystal Display devices, which include a Liquid Crystal panel and a backlight module that are disposed opposite to each other, and the backlight module provides a Display backlight source for the Liquid Crystal panel to enable the Liquid Crystal panel to Display images.
The side-in backlight module sets the backlight source at the edge of the light guide plate, and the light emitted by the backlight source enters the light guide plate from the side surface of the light guide plate to form a surface light source to be provided for the liquid crystal panel. Due to the diffusion effect of the light guide plate on light, the light convergence is poor, the contrast is low, and the visual experience of human eyes is influenced; in addition, considering the lightness and thinness of the backlight module, the area of the heat conducting strip of the backlight source is small, so that the heat dissipation effect of the backlight source is poor, and the heat dissipation effect of the backlight module is further influenced.
The direct-type backlight module is provided with a plurality of backlight sources arranged on the back of the liquid crystal panel, and further directly forms a surface light source to be provided for the liquid crystal panel. Fig. 1 is a schematic structural diagram of a direct type backlight module in the prior art. As shown in fig. 1, the direct type backlight module includes: the backlight module comprises a back plate 10, a light bar 20 arranged in the back plate 10, a reflector plate 30 arranged in the back plate 10, a light guide plate 40 arranged above the light bar 20, and an optical film group 50 arranged above the light guide plate 40, wherein the light bar 20 comprises a plurality of LED chips as light sources, and similar point light sources of the light bar 20 are adjusted to be surface light sources through the light guide plate 40 and the optical film group 50. On one hand, since the light emergent plane of the light bar 20 is parallel to the light incident plane of the light guide plate 40, the light mixing distance of the light bar 20 is restricted by the thickness of the backlight module, and a uniform surface light source cannot be realized at the same time; and a plurality of LED chips are in work, because of the efficiency of electric energy conversion light energy is not high, can produce a large amount of heat energy, if can not effectually dispel the heat, can make the LED chip produce frequency drift, and the spectral width increases thereupon, influences the colour purity, and LED chip overheated still can reduce its luminous intensity simultaneously, shortens its working life.
In view of this, the applicant of the present invention has made extensive and intensive studies on many defects and inconveniences caused by the perfection of the backlight module, and has actively researched and developed the present invention.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to disclose a backlight unit and liquid crystal display device, the utility model discloses the mixed light distance of the lamp strip that aims at solving among the prior art straight following formula backlight unit receives the restriction of backlight unit thickness and leads to unable while realizing even area source to and unable timely heat dissipation causes the quality unusual and life to shorten the scheduling problem.
In order to solve the technical problem, the utility model discloses a solution is: the backlight module comprises a back plate, a backlight source and a light guide plate, wherein the backlight source comprises a plurality of light bars arranged in parallel, and the light bars comprise a first light source group and a second light source group which are arranged in parallel; a plurality of heat dissipation structures are arranged between the bottom plate of the back plate and the backlight source, the positions of the heat dissipation structures correspond to the positions of the light bars one by one, and the heat dissipation structures are arranged in a protruding mode relative to the bottom plate in the direction close to the backlight source; the light guide plate is provided with a groove at a position corresponding to the light bar, and the shape of the groove is matched with that of the heat dissipation structure;
the heat dissipation structure comprises a first support and a second support which are separated from each other, wherein the first support is provided with a first inclined surface, and the second support is provided with a second inclined surface which is symmetrical to the first inclined surface; the first light source group is correspondingly arranged on the first inclined plane, and the second light source group is correspondingly arranged on the second inclined plane.
Preferably, the heat dissipation structure further comprises a heat dissipation hole located between the first bracket and the second bracket.
Preferably, the heat dissipation structure and the back plate are integrally formed, and the first support and the second support are formed by bending in a direction close to the backlight source after being cut by the bottom plate.
Preferably, the heat dissipation structure further comprises a third bracket connecting the first bracket and the second bracket, and clamping pieces are arranged at two ends of the third bracket; the bottom plate is provided with a mounting groove at a position corresponding to the heat dissipation structure, and two ends of the mounting groove are provided with limiting pieces; the heat dissipation structure is mutually clamped and fixed with the limiting part of the bottom plate through the clamping part.
Preferably, the limiting members at the two ends of the mounting groove are clamping grooves, the clamping members at the two ends of the third support are clamping hooks, and the heat dissipation structure is mutually clamped and fixed with the clamping grooves of the bottom plate through the clamping hooks.
Preferably, the angle between the first bracket and the second bracket is greater than 90 ° and less than 180 °.
Preferably, the first light source group and the second light source group are respectively fixed on the first bracket and the second bracket by double-sided tapes.
Preferably, a plurality of mesh points are arranged on the bottom surface of the light guide plate.
Preferably, the backlight module further includes a reflective sheet disposed between the bottom plate and the light guide plate, the reflective sheet being absent at a position corresponding to the heat dissipation structure.
Preferably, the backlight module further comprises an optical film group arranged above the light guide plate.
The embodiment of the utility model also discloses a liquid crystal display device, including liquid crystal display panel and backlight unit, wherein, backlight unit is as above backlight unit, liquid crystal display panel sets up the top at backlight unit.
The backlight module and the liquid crystal display device of the utility model increase the light mixing distance of the light bar without increasing the thickness of the backlight module, so that the backlight module can realize a uniform surface light source; in addition, a heat dissipation structure is additionally arranged between the light bar and the back plate, so that heat generated by the working of the LED chip is effectively dissipated, the LED chip can work at a relatively low temperature, the frequency spectrum drift of the LED chip is favorably inhibited, good color purity is kept, and the service life of the LED chip is prolonged.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a direct-type backlight module in the prior art;
fig. 2 is a bottom view of a back plate in a backlight module according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of a backlight module according to a first embodiment of the present invention;
FIG. 4 is a bottom view of the backlight module disclosed in FIG. 3;
fig. 5 is a bottom view of a back plate in a backlight module according to a second embodiment of the present invention;
fig. 6 is a cross-sectional view of a backlight module according to a second embodiment of the present invention;
FIG. 7 is a bottom view of the backlight module disclosed in FIG. 6;
in the figure: 10. 100, 100': a back plate; 101. 101': a base plate; 102. 102': a side plate; 103: mounting grooves; 104: a limiting member; 20. 200: a light bar; 201: a first light source group; 202: a second light source group; 30. 300, and (2) 300: a reflective sheet; 40. 400: a light guide plate; 50. 500: an optical film set; 600. 600': a heat dissipation structure; 601. 601': a first bracket; 602. 602': a first inclined plane; 603. 603': a second bracket; 604. 604': a second inclined plane; 605. 605': heat dissipation holes; 606: a third support; 607: a fastener; 700: a shading tape.
Detailed Description
In order to further explain the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Fig. 2 is a bottom view of a back plate in a backlight module according to a first embodiment of the present invention; fig. 3 is a cross-sectional view of a backlight module according to a first embodiment of the present invention; fig. 4 is a bottom view of the backlight module disclosed in fig. 3.
Referring to fig. 2 to 4, the present embodiment discloses a backlight module, which includes: the backlight module comprises a back plate 100, a backlight source arranged in the back plate 100, a reflector plate 300 arranged in the back plate 100, a light guide plate 400 arranged above the backlight source, and an optical film group 500 arranged above the light guide plate 400. The backlight source comprises a plurality of light bars 200 arranged in parallel, and a first light source group 201 and a second light source group 202 are arranged on a substrate of the light bars 200 in parallel.
The back plate 100 includes a bottom plate 101 and a side plate 102 connected to a side edge of the bottom plate 101, a plurality of heat dissipation structures 600 are included between the bottom plate 101 of the back plate 100 and the backlight source, and positions of the heat dissipation structures 600 are in one-to-one correspondence with positions of the light bars 200 and are arranged to protrude in a direction close to the backlight source relative to the bottom plate 101.
In this embodiment, only five light bars 200 arranged in parallel and five heat dissipation structures 600 arranged in parallel are exemplarily disposed, and a designer can set the number of the light bars and the heat dissipation structures according to different requirements and specification values, which is not limited herein.
In this embodiment, the first light source group 201 and the second light source group 202 are the same light source assembly, and may specifically be a common LED chip, a Micro LED chip, or a Mini LED chip; in other embodiments, the first light source group 201 and the second light source group 202 may be disposed as different light source assemblies, for example, the first light source group 201 is a high color gamut light source, the second light source group 202 is a low color gamut light source, and the like, which is not limited herein.
In this embodiment, the heat dissipation structure 600 includes a first bracket 601 and a second bracket 603 that are separated from each other. The first bracket 601 has a first inclined surface 602, and the second bracket 603 has a second inclined surface 604 symmetrical to the first inclined surface; the first light source group 201 is disposed on the first inclined plane 602, and the second light source group 202 is disposed on the second inclined plane 604. Specifically, the first light source group 201 and the second light source group 202 are fixed on the first bracket 601 and the second bracket 603, respectively, by double-sided tapes. In this embodiment, the substrate of the light bar 200 is a flexible circuit board, so that the first light source group 201 and the second light source group 202 arranged in parallel can be bent and deformed according to the angles of the first bracket and the second bracket.
In this embodiment, the included angle between the first bracket 601 and the second bracket 603 is about 120 °, and in other embodiments, the included angle may also be 160 ° or 92 °, and the included angle may be set according to the light mixing requirements of backlight modules with different sizes. Since too small an angle (e.g., less than 90 °) may affect the thickness of the backlight module, the angle of the included angle defined in the present embodiment needs to be greater than 90 ° and less than 180 °.
In this embodiment, the light guide plate 400 forms a groove 401 at a position corresponding to the backlight source, and the shape of the groove 401 matches with the shape of the heat dissipation structure 600. A plurality of dots are disposed on the bottom surface of the light guide plate 400. Specifically, the inner included angle of the groove 401 is also 120 °. Through the cooperation of the light guide plate 400 and the heat dissipation structure 600, the light mixing distance of the backlight source can be increased without changing the thickness of the backlight module, so that the backlight module can realize a uniform surface light source.
In the present embodiment, the position of the reflective sheet 300 in the backlight module corresponding to the heat dissipation structure 600 is absent.
In this embodiment, the heat dissipation structure 600 further includes heat dissipation holes 605 located between the first bracket 601 and the second bracket 603. Because the first support 601 and the second support 603 are separated from each other, when the light bar 200 is fixed on the first support 601 and the second support 603, heat generated by the operation of the LED chip can be effectively dissipated, the LED chip can operate at a relatively low temperature, the spectrum drift of the LED chip can be inhibited, good color purity can be maintained, and the service life of the LED chip can be prolonged.
In the present embodiment, the heat dissipation structure 600 is integrally formed with the backplate 100. The first bracket 601 and the second bracket 603 are formed by cutting the bottom plate 101 and then bending the cut bottom plate in a direction close to the backlight source. After research personnel design the light guide plates with different groove angles according to different light mixing requirements, operating personnel can manually adjust the included angle between the first support and the second support according to the inner included angle of the groove of the light guide plate, and the universality rate of the back plate is greatly improved; meanwhile, the heat dissipation structure is integrally formed with the back plate, the weight of the backlight module is not required to be increased, and the practicability is high.
In this embodiment, since the first bracket 601 and the second bracket 603 in the heat dissipation structure 600 are separated from each other, in order to prevent light leakage or foreign matter from entering from the lower side of the backlight module, a light-shielding tape 700 may be attached to the lower side of the bottom plate 101 for performing light-shielding and dust-preventing processes.
According to the backlight module disclosed by the embodiment, the light mixing distance of the light bar is increased while the thickness of the backlight module is not increased, so that the backlight module can realize a uniform surface light source, and the contrast of the backlight module is improved; in addition, a heat dissipation structure is additionally arranged between the light bar and the back plate, so that heat generated by the working of the LED chip is effectively dissipated.
Second embodiment
Fig. 5 is a bottom view of a back plate in a backlight module according to a second embodiment of the present invention; fig. 6 is a cross-sectional view of a backlight module according to a second embodiment of the present invention; fig. 7 is a bottom view of the backlight module disclosed in fig. 6.
As shown in fig. 5-7, the backlight module disclosed in this embodiment has substantially the same structure as the backlight module disclosed in the first embodiment, except that: in the backlight module disclosed in this embodiment, the bottom plate 101 ' of the back plate 100 ' is provided with a mounting groove 103 at a position corresponding to the heat dissipation structure 600 ', and two ends of the mounting groove 103 are further provided with a limiting member 104.
In this embodiment, the heat dissipation structure 600 ' includes a first bracket 601 ' and a second bracket 603 ' separated from each other, and a third bracket 606 connecting the first bracket 601 ' and the second bracket 603 '. The first bracket 601 'has a first inclined surface 602', and the second bracket 603 'has a second inclined surface 604' symmetrical to the first inclined surface; the first light source group 201 is disposed on the first inclined plane 602 'correspondingly, and the second light source group 202 is disposed on the second inclined plane 604' correspondingly. Correspondingly, the two ends of the third bracket 606 are provided with engaging pieces 607; the heat dissipation structure 600' is fixed to the bottom plate limiting member 104 by the engaging member 607.
In this embodiment, the heat dissipation structure 600 'further includes heat dissipation holes 605' located between the first bracket 601 ', the second bracket 603' and the third bracket 606. Because the first bracket 601 'and the second bracket 603' are separated from each other, when the light bar 200 is fixed on the first bracket 601 'and the second bracket 603', heat generated by the operation of the LED chip can be effectively dissipated, the LED chip can operate at a relatively low temperature, the spectrum drift of the LED chip can be inhibited, good color purity can be maintained, and the service life of the LED chip can be prolonged.
In this embodiment, the limiting member 104 of the bottom plate 101 'is specifically a slot, the engaging members 607 at two ends of the third bracket 606 are specifically a hook, and the heat dissipating structure 600' is mutually engaged and fixed with the slot of the bottom plate through the hook. In other embodiments, other fixing structures may be provided to achieve the mounting and dismounting of the heat dissipation structure and the bottom plate, which is not limited herein.
The backlight module disclosed by the embodiment is characterized in that the base plate is provided with the limiting part, the clamping part is arranged on the heat dissipation structure, and the disassembly of the production line after heavy industry and customers after sale can be conveniently realized only by the mutual matching of the limiting part and the clamping part, and the deformation of each part of the backlight module can not be caused in the disassembly process, so that the after-sale cost of the customers is reduced.
Third embodiment
The third embodiment of the utility model also discloses a liquid crystal display device, this liquid crystal display device include liquid crystal display panel and as above backlight unit, wherein, liquid crystal display panel is fixed in on the backlight unit.
The utility model discloses a liquid crystal display device, which increases the light mixing distance of a light bar while not increasing the thickness of a backlight module, so that the backlight module can realize a uniform surface light source; in addition, a heat dissipation structure is additionally arranged between the light bar and the back plate, so that heat generated by the working of the LED chip is effectively dissipated, the LED chip can work at a relatively low temperature, the frequency spectrum drift of the LED chip is favorably inhibited, good color purity is kept, and the service life of the LED chip is prolonged.
The foregoing is a complete disclosure of the present invention, and in this specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including other elements not expressly listed, in addition to those elements listed.
In the present specification, the terms of front, rear, upper, lower and the like are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a backlight module, includes backplate, backlight and light guide plate, its characterized in that: the backlight source comprises a plurality of light bars arranged in parallel, and the light bars comprise a first light source group and a second light source group which are arranged in parallel; a plurality of heat dissipation structures are arranged between the bottom plate of the back plate and the backlight source, the positions of the heat dissipation structures correspond to the positions of the light bars one by one, and the heat dissipation structures are arranged in a protruding mode relative to the bottom plate in the direction close to the backlight source; a groove is formed in the position, corresponding to the lamp strip, of the light guide plate, and the shape of the groove is matched with that of the heat dissipation structure;
the heat dissipation structure comprises a first bracket and a second bracket which are separated from each other, wherein the first bracket is provided with a first inclined surface, and the second bracket is provided with a second inclined surface which is symmetrical to the first inclined surface; the first light source group is correspondingly arranged on the first inclined plane, and the second light source group is correspondingly arranged on the second inclined plane.
2. The backlight module according to claim 1, wherein: the heat dissipation structure further comprises heat dissipation holes located between the first support and the second support.
3. The backlight module according to claim 1, wherein: the heat dissipation structure and the back plate are integrally formed, and the first support and the second support are formed by bending in the direction close to the backlight source after the bottom plate is cut.
4. The backlight module according to claim 1, wherein: the heat dissipation structure further comprises a third support connected with the first support and the second support, and clamping pieces are arranged at two ends of the third support; the bottom plate is provided with a mounting groove at a position corresponding to the heat dissipation structure, and two ends of the mounting groove are provided with limiting pieces; the heat dissipation structure is fixed with the limiting part of the bottom plate in a mutually clamping manner through the clamping part.
5. The backlight module according to claim 4, wherein: the limiting parts at the two ends of the mounting groove are clamping grooves, the clamping parts at the two ends of the third support are clamping hooks, and the heat dissipation structure is clamped and fixed with the clamping grooves of the bottom plate through the clamping hooks.
6. The backlight module according to claim 1, wherein: the included angle between the first support and the second support is larger than 90 degrees and smaller than 180 degrees.
7. The backlight module according to claim 1, wherein: the first light source group and the second light source group are respectively fixed on the first support and the second support through double-faced adhesive tapes.
8. The backlight module according to claim 1, wherein: the backlight module also comprises a reflector plate arranged between the bottom plate and the light guide plate, and the reflector plate is absent at the position corresponding to the heat dissipation structure.
9. The backlight module according to claim 1, wherein: the backlight module also comprises an optical film group arranged above the light guide plate.
10. The utility model provides a liquid crystal display device, includes liquid crystal display panel and backlight unit, its characterized in that: the backlight module according to any one of claims 1 to 9, wherein the liquid crystal panel is disposed above the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136751.0U CN210639391U (en) | 2019-07-19 | 2019-07-19 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136751.0U CN210639391U (en) | 2019-07-19 | 2019-07-19 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210639391U true CN210639391U (en) | 2020-05-29 |
Family
ID=70794606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921136751.0U Active CN210639391U (en) | 2019-07-19 | 2019-07-19 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210639391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114660851A (en) * | 2022-04-12 | 2022-06-24 | Tcl华星光电技术有限公司 | Backlight module and display device |
-
2019
- 2019-07-19 CN CN201921136751.0U patent/CN210639391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114660851A (en) * | 2022-04-12 | 2022-06-24 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN114660851B (en) * | 2022-04-12 | 2024-02-09 | Tcl华星光电技术有限公司 | Backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102390071B1 (en) | Display device | |
| US9280009B2 (en) | Double-sided curved liquid crystal display device | |
| EP3190456B1 (en) | Display device | |
| KR20070002552A (en) | Cover bottom for liquid crystal display device, led back light assembly and liquid crystal display module using thereof | |
| EP3825758B1 (en) | Display device | |
| EP2863255B1 (en) | Liquid crystal display apparatus | |
| CN109283723B (en) | Display device | |
| US20210096420A1 (en) | Display device and backlight module thereof | |
| CN201401697Y (en) | Side light type backlight module | |
| WO2017067101A1 (en) | Backlight module and liquid crystal display | |
| US8579455B2 (en) | Direct type backlight module and liquid crystal display device | |
| CN210639391U (en) | Backlight module and liquid crystal display device | |
| CN210294761U (en) | High-brightness module screen | |
| CN209327742U (en) | Down straight aphototropism mode set and display device | |
| US20160356948A1 (en) | Backlight module and curved liquid crystal display device | |
| CN112925130A (en) | Symmetrical double-sided screen liquid crystal module structure | |
| WO2019127734A1 (en) | Liquid crystal display and backlight module thereof | |
| KR20120065110A (en) | Backlight unit | |
| CN202972966U (en) | Back plate of backlight source, backlight source and display device | |
| CN213659135U (en) | Side-entering type double-sided backlight module | |
| CN213659145U (en) | Double-sided backlight module structure | |
| CN209514255U (en) | A kind of curved surface down straight aphototropism mode set of high brightness | |
| CN112731710A (en) | Double-sided screen television structure | |
| US20130128604A1 (en) | Flat Panel Display Device and Stereoscopic Display Device | |
| CN210015254U (en) | Side-in backlight module with special-shaped structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |