CN221039721U - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN221039721U CN221039721U CN202323234472.7U CN202323234472U CN221039721U CN 221039721 U CN221039721 U CN 221039721U CN 202323234472 U CN202323234472 U CN 202323234472U CN 221039721 U CN221039721 U CN 221039721U
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- light
- light guide
- heat dissipation
- guide plate
- frame
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 35
- 230000017525 heat dissipation Effects 0.000 claims abstract description 82
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 25
- 239000010439 graphite Substances 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 24
- 239000002390 adhesive tape Substances 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 11
- 230000002708 enhancing effect Effects 0.000 claims description 10
- 230000001965 increasing effect Effects 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 230000002411 adverse Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005282 brightening Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model provides a liquid crystal display device includes backlight unit and display screen, backlight unit includes the heat dissipation frame, glue the frame subassembly, light guide component, flexible circuit board and a plurality of lamp source, the lamp source sends light respectively, glue the frame subassembly and set up on the diapire of heat dissipation frame, light guide component sets up in gluing the frame subassembly, light guide component includes reflective film and light guide plate, the display screen sets up in the light guide plate top, the light guide plate has into the light side, go out the light side and for the reflection of light side that goes out the light side, go into the light side perpendicular to and go out the light side, the lamp source sets up the light side that goes into at the light guide plate, the reflective film sets up on the diapire of heat dissipation frame, and be located the reflection of light side of light guide plate, the one end subsides light guide plate light-out side of flexible circuit board, the other end of flexible circuit board is located the lamp source top, with lamp source electric connection, the light that two adjacent lamp sources sent intersects in the outside of display screen, one side that the lamp source was kept away from to flexible circuit board is provided with first graphite sheet, be provided with a plurality of louvre on the heat dissipation frame in time, in order to disperse heat, promote radiating efficiency.
Description
Technical Field
The present utility model relates to the field of optical display technology, and in particular, to a liquid crystal display device.
Background
The liquid crystal display is a flat thin display device, is generally used as a screen display of electronic devices such as televisions, notebooks, computers and the like, and is favored by consumers due to the characteristics of low power consumption, small volume and the like.
The display device is composed of a certain number of color or black and white pixels, placed in front of the light source. For some display devices that need to work outdoors for a long period of time, the brightness requirement on the screen is high, and the brightness of the light source is also high. The brightness increase of the light source causes the light source to generate a large amount of heat, and the heat is difficult to radiate, so that the operation and the service life of the display equipment are adversely affected.
Therefore, how to solve the above problems is a technical problem that needs to be solved by those skilled in the art.
Disclosure of utility model
The utility model aims to provide liquid crystal display equipment with high brightness, and the backlight display module is provided with the first graphite sheet on the flexible circuit board and the radiating holes on the radiating frame, so that the radiating capacity of the backlight display module can be improved, heat generated during the working of a lamp source can be timely radiated, the adverse effect of heat accumulation on the backlight display module is reduced, the service life of the backlight display module is prolonged, and the working stability and reliability of the backlight display module are ensured.
The technical scheme provided by the utility model is as follows:
The liquid crystal display device comprises a backlight module and a display screen, wherein the backlight module comprises a heat dissipation frame, a glue frame assembly, a light guide assembly, a flexible circuit board and a plurality of light sources, each light source respectively emits light, the glue frame assembly is arranged on the bottom wall of the heat dissipation frame, the light guide assembly is arranged in the glue frame assembly, the light guide assembly comprises a reflecting film and a light guide plate, and the display screen is arranged above the light guide plate;
The light guide plate has a light incident side, a light emergent side and a light reflecting side opposite to the light emergent side, wherein the light incident side is perpendicular to the light emergent side;
The light source is arranged on the light inlet side of the light guide plate, the reflecting film is arranged on the bottom wall of the heat dissipation frame and is positioned on the light reflecting side of the light guide plate, one end of the flexible circuit board is attached to the light outlet side of the light guide plate, and the other end of the flexible circuit board is positioned above the light source and is electrically connected with the light source;
The light rays emitted by two adjacent light sources intersect at the outer side of the display screen, a first graphite sheet is arranged on one side, far away from the light sources, of the flexible circuit board, and a plurality of heat dissipation holes are formed in the heat dissipation frame.
In some embodiments, the heat dissipation Kong Kaishe is on the bottom wall of the heat dissipation frame, the bottom wall of the heat dissipation frame is in a direction approaching to the light source, the diameter of the heat dissipation holes is gradually increased, and the density of the heat dissipation holes is gradually increased.
In some embodiments, a second graphite sheet is disposed on an end of the bottom wall of the heat dissipation frame near the light source.
In some embodiments, the heat dissipation frame is made of aluminum alloy.
In some embodiments, the glue frame assembly includes a first glue frame and a second glue frame, the first glue frame and the second glue frame being disposed on two sides of the light guide assembly, respectively;
The second glue frame is L-shaped, and the second glue frame comprises a first part and a second part arranged on the first part, wherein the first part is arranged on the bottom wall of the heat dissipation frame, and one end, far away from the light guide plate, of the flexible circuit board is positioned on the first part and is provided with a gap with the second part.
In some embodiments, the display device further comprises a first polarizer and a second polarizer, wherein the first polarizer is arranged above the display screen, the second polarizer is arranged below the display screen, and a gap is arranged between the flexible circuit board and the display screen.
In some embodiments, a diffusion film, a first brightness enhancing sheet, and a second brightness enhancing sheet are sequentially disposed above the light guide plate, and the diffusion film is disposed below the second polarizer.
In some embodiments, a side of the first graphite sheet remote from the flexible circuit board is provided with a shading adhesive.
In some embodiments, the flexible circuit board has a front surface and a back surface opposite to the front surface, wherein the side of the flexible circuit board away from the light guide plate is the back surface, and the back surface is adhered and fixed with the first graphite sheet through back adhesive;
The front surface of the flexible circuit board is adhered and fixed with the light guide plate through white double faced adhesive tape.
In some embodiments, the light source is an LED lamp, and the caliber of the LED lamp is the same as the thickness of the light guide plate.
A liquid crystal display device has the following beneficial effects:
1. According to the liquid crystal display device provided by the utility model, the light rays emitted by two adjacent light sources intersect at the outer side of the display screen, the display brightness can be improved while the brightness is uniform, so that the outdoor high-brightness requirement is met, on one hand, the backlight display module can rapidly discharge heat generated when the light sources work by arranging the first graphite sheet on one side of the flexible circuit board, on the other hand, the heat radiation holes are arranged on the heat conduction frame, the quality of the backlight display module is reduced, the production cost is reduced, the heat radiation capability of the backlight display module can be further improved, the stability and the reliability of the backlight display module in long-time work are ensured, and the service life of the backlight display module is prolonged.
2. According to the liquid crystal display device, the heat dissipation frame is made of the aluminum alloy, so that the heat dissipation frame has the characteristics of light weight and high strength, the density of the heat dissipation holes is gradually increased in the direction that the bottom wall of the heat dissipation frame is close to the light source, the diameters of the heat dissipation holes are also gradually increased, and the local strength of the heat dissipation frame is also ensured while heat dissipation is ensured.
3. According to the liquid crystal display device provided by the utility model, the white double-sided adhesive tape is arranged on the front surface of the flexible circuit board, the first graphite sheet and the flexible circuit board are adhered through the white double-sided adhesive tape, the reflectivity of the white double-sided adhesive tape is higher, most of light rays emitted by the light source enter the light inlet side of the light guide plate through the reflection effect of the white double-sided adhesive tape, and the shading adhesive tape is arranged on the side, far away from the flexible circuit board, of the first graphite sheet, so that the light rays scattered by the light guide plate can be blocked by the shading adhesive tape, the loss of the light rays is reduced, and the utilization rate of the light rays is improved.
Drawings
The above features, technical features, advantages and implementation modes of the present invention will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and understandable manner.
Fig. 1 is a structural view of a liquid crystal display device provided by the present utility model;
fig. 2 is a structural view of a light guide plate of a liquid crystal display device provided by the present utility model;
Fig. 3 is a structural diagram of a second frame of a liquid crystal display device according to the present utility model;
fig. 4 is a lower view of a heat dissipation frame of a liquid crystal display device according to the present utility model;
fig. 5 is a structural view of a display screen of a liquid crystal display device provided by the present utility model;
Fig. 6 is a top view of a display screen of a liquid crystal display device provided by the present utility model.
Reference numerals illustrate:
The light source comprises a heat dissipation frame 100, a first adhesive frame 110, a second adhesive frame 120, a first part 121, a second part 122, a light source 130, a reflecting film 140, a light guide plate 150, a light incident side 151, a light emergent side 152, a light reflecting side 153, a first graphite sheet 160, a flexible circuit board 170, a heat dissipation hole 180, a diffusion film 190, a first brightening sheet 200, a second brightening sheet 210, a shading adhesive 220, a display screen 300, a first polarizer 310, a second polarizer 320 and a backlight module 400.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In an embodiment, referring to fig. 1 to 6 of the drawings, a liquid crystal display device is described, on one hand, by arranging the first graphite sheet 160 on one side of the flexible circuit board 170, and on the other hand, arranging the heat dissipation holes 180 on the heat dissipation frame 100, the liquid crystal display device can well dissipate heat, and adverse effects of heat generated during operation of the backlight display module on display are reduced, so that the liquid crystal display device does not need to be additionally provided with a heat dissipation device, and the use cost is reduced.
Specifically, referring to fig. 1 and 2 of the drawings, a liquid crystal display device includes a backlight module 400 and a display screen 300, the backlight module 400 includes a heat dissipation frame 100, a frame assembly, a light guide assembly, a flexible circuit board 170 and a plurality of light sources 130, wherein the frame assembly is disposed on a bottom wall of the heat dissipation frame 100, the light guide assembly is disposed in the frame assembly, and each light source 130 is respectively configured to emit light. The light guide assembly includes a reflective film 140 and a light guide plate 150, wherein a display screen 300 is disposed above the light guide plate 150, and the display screen 300 is used to display contents.
Accordingly, referring to fig. 2 and 6 of the drawings, the light guide plate 150 has a light incident side 151, a light emergent side 152 and a light reflecting side 153, the light reflecting side 153 is disposed opposite to the light emergent side 152, and the light incident side 151 is perpendicular to the light emergent side 152, and accordingly, the display screen 300 is located above the light emergent side 152 of the light guide plate 150.
Further, the light sources 130 are disposed towards the light incident side 151 of the light guide plate 150, and the light sources 130 are sequentially disposed at intervals, and the emitted light enters the light guide plate 150 through the light incident side 151 for providing light to the light guide plate 150. The reflective film 140 is disposed on the bottom wall of the heat dissipation frame 100 and located at the reflective side 153 of the light guide plate 150. Part of the light emitted by the light source 130 enters the light guide plate 150 through the light incident side 151, most of the light is reflected under the action of the light reflecting side 153, and part of the light emitted from the light reflecting side 153 is reflected by the reflecting film 140 for reuse, so that the light emitted from the light reflecting side 153 of the light guide plate 150 is prevented from being emitted through the reflecting film 140, and the light utilization rate is further improved.
Further, one end of the flexible circuit board 170 is attached to the light emitting side 152 of the light guide plate 150, and correspondingly, the other end of the flexible circuit board 170 is located above the light source 130, and the flexible circuit board 170 is electrically connected to the light source 130, and the flexible circuit board 170 can control the electrical communication of the flexible circuit board 170, so as to control the on or off of the light source 130.
It should be noted that, the side of the flexible circuit board 170 away from the light source 130 is provided with a first graphite sheet 160, and the heat dissipation frame 100 is provided with a heat dissipation hole 180. The graphite flake is a brand new heat conduction and radiation material, has unique grain orientation, can be well attached to the surface of the flexible circuit board 170, and can rapidly dissipate heat sources generated by the operation of the lamp source 130 and the flexible circuit board 170, thereby achieving the purpose of rapid cooling. Referring to fig. 6 of the drawings, a portion of light emitted by the light sources 130 can be distributed over the whole display screen 300, and light emitted by two adjacent light sources 130 intersects the outside of the display screen 300, accordingly, the outside of the display screen 300 is one side of the display screen 300 close to the light guide plate 150, so that the backlight module 400 can better illuminate the dark area in the liquid crystal display device, and further improve the uniformity and brightness of display, so as to meet the outdoor use requirements of users.
In this embodiment, by disposing the first graphite sheet 160 on the flexible circuit board 170, the heat of the flexible circuit board 170 and the light source 130 can be discharged through the first graphite sheet 160, so that the heat dissipation efficiency is greatly improved, and the heat dissipation frame 100 is provided with the heat dissipation holes 180 for discharging the heat absorbed by the first graphite sheet 160 from the flexible circuit board 170 from the heat dissipation holes 180, so as to ensure the stability and reliability of the operation of the backlight display module. It can be appreciated that, this backlight display module assembly is through the mutual cooperation of first graphite piece 160 and louvre 180, can in time follow this backlight display module assembly with heat and discharge, and the radiating effect is good, has prolonged life.
In one embodiment, referring to fig. 4 of the specification, the heat dissipation frame 100 is further described in this embodiment. Specifically, the heat dissipation holes 180 are provided on the bottom wall of the heat dissipation frame 100, and the diameters of the heat dissipation holes 180 are gradually increased and the densities of the heat dissipation holes 180 are gradually increased in the direction in which the bottom wall of the heat dissipation frame 100 is close to the light source 130.
It can be appreciated that the heat quantity of the bottom wall of the heat dissipation frame 100 is higher at the position closer to the light source 130 and the flexible circuit board 170, and the heat dissipation capability of the heat dissipation frame 100 is further improved by increasing the diameter of the heat dissipation holes 180 in the direction of the bottom wall of the heat dissipation frame 100 towards the light source 130, and accordingly, increasing the density of the heat dissipation holes 180 can further improve the heat dissipation capability of the heat dissipation frame 100.
Further, the lamp source 130 is provided with an LED lamp. It is noted that the caliber of the LED lamp is the same as the thickness of the light guide plate 150, so that the light guide plate 150 can collect the light beam generated by the LED lamp to the maximum extent, and the light utilization rate is improved.
In practical production applications, the heat dissipation holes 180 may be circular, square, oval, etc., and may be set according to practical requirements, and the heat dissipation holes 180 are not limited to be disposed on the bottom wall of the heat dissipation frame 100, and may be disposed on the side wall of the heat dissipation frame 100, so as to achieve the purpose of dissipating heat through the heat dissipation holes 180, which is not described in detail herein, and are all within the scope of the present utility model.
In one embodiment, this embodiment further illustrates the heat dissipation frame 100. Specifically, the heat dissipation frame 100 is made of an aluminum alloy. The aluminum alloy has the characteristics of low density, good mechanical property, strong heat transfer property and the like, can effectively improve the heat dissipation effect of the backlight display module, and can also meet the support requirement of the backlight display module.
Further, a second graphite sheet is further disposed on the bottom wall of the heat dissipation frame 100, and the second graphite sheet is disposed at one end of the bottom wall of the heat dissipation frame 100, which is close to the light source 130, so as to further improve the heat dissipation capability of the heat dissipation frame 100.
It is understood that in practical production applications, the heat dissipation frame 100 may be made of other materials, and is not limited to aluminum alloy, so as to achieve the purpose of timely discharging heat, which is not described herein in detail, and is within the scope of the present utility model.
In one embodiment, referring to fig. 1 and 3 of the drawings, the heat dissipation frame 100 is further described in this embodiment. Specifically, the glue frame assembly comprises a first glue frame 110 and a second glue frame 120, wherein the first glue frame 110 and the second glue frame 120 are both arranged in the heat dissipation frame 100 and are respectively arranged at two sides of the light guide assembly, the two sides of the light guide assembly are respectively adhered and fixed with the first glue frame 110 and the second glue frame 120 through spot gluing, and the glue frame assembly plays a role in supporting and fixing.
Further, the second rubber frame 120 is L-shaped, and the second rubber frame 120 includes a first portion 121 and a second portion 122, and the first portion 121 is disposed on the second portion 122. Accordingly, the first portion 121 is disposed on the bottom wall of the heat dissipation frame 100, and an end of the flexible circuit board 170 remote from the light guide plate 150 is disposed on the first portion 121 to achieve a fixing effect on the flexible circuit board 170. The second portion 122 is located on a side of the light source 130 remote from the light entrance side 151. Accordingly, a gap is provided between an end of the flexible circuit board 170 remote from the light guide plate 150 and the second portion 122.
In one embodiment, referring to fig. 5 of the drawings, a liquid crystal display device is further described in this embodiment. Specifically, the display panel further includes a first polarizer 310 and a second polarizer 320, wherein the first polarizer 310 is disposed above the display panel 300, and the second polarizer 320 is disposed below the display panel 300. Accordingly, the flexible circuit board 170 and the display screen 300 are not disposed in contact, i.e., a gap is provided between the flexible circuit board 170 and the display screen 300. Preferably, the gap between the flexible circuit board 170 and the display screen 300 is between 1mm and 1.5 mm. It is understood that the arrangement of the first polarizer 310 and the second polarizer 320 can improve the display effect of the liquid crystal display device.
Still further, a diffusion film 190 is further disposed on the light guide plate 150, the diffusion film 190 is disposed under the second polarizer 320, the diffusion film 190 is further provided with a first brightness enhancing sheet 200, and correspondingly, the first brightness enhancing sheet 200 is further provided with a second brightness enhancing sheet 210.
It can be understood that, when part of the light emitted from the light source 130 enters the light guide plate 150 through the light incident side 151, and is emitted from the light emergent side 152 under the combined action of the light reflecting side 153 and the reflecting film 140. Accordingly, after the light is emitted from the light emitting side 152, the light is made to be a uniform-surface light source under the action of the diffusion film 190, so as to achieve the optical diffusion effect, and the brightness of the light emitted by the light source 130 is enhanced through the first brightness enhancement film 200 and the second brightness enhancement film 210. Accordingly, after passing through the second brightness enhancing film 210, part of the light emitted from the two adjacent light sources 130 passes through the second polarizer 320 and then intersects the outer side of the light guide plate 150. In the present embodiment, by providing the diffusion film 190, the first brightness enhancing sheet 200, and the second brightness enhancing sheet 210, the backlight display effect of the lamp source 130 is enhanced.
In one embodiment, referring to fig. 1 of the drawings, a light shielding glue 220 is further disposed on a side of the first graphite sheet 160 away from the flexible circuit board 170, and the light shielding glue 220 is disposed to enable the reflective film 140 to reflect the leaked light back to the light guide plate 150, so as to prevent the light from leaking and increase the light utilization rate.
Further, the flexible circuit board 170 has a front side and a back side, the front side and the back side are disposed opposite to each other, the front side is provided with a top layer routing layer, and the back side is provided with a bottom layer routing layer. Accordingly, the side of the flexible circuit board 170 away from the light guide plate 150 is a reverse side, the reverse side is fixedly bonded with the first graphite sheet 160 through the back adhesive, the side of the flexible circuit board 170 close to the light guide plate 150 is a front side, the front side of the flexible circuit board 170 is provided with white double faced adhesive tape, the front side of the flexible circuit board 170 is fixedly bonded with the light guide plate 150 through the white double faced adhesive tape, the reflectivity of the white double faced adhesive tape is high, and most of light rays emitted by a light source enter the light inlet side of the light guide plate through the reflecting effect of the white double faced adhesive tape, so that the brightness of the liquid crystal display device can be improved.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The liquid crystal display device is characterized by comprising a backlight module and a display screen, wherein the backlight module comprises a heat dissipation frame, a rubber frame assembly, a light guide assembly, a flexible circuit board and a plurality of light sources, each light source respectively emits light, the rubber frame assembly is arranged on the bottom wall of the heat dissipation frame, the light guide assembly is arranged in the rubber frame assembly, the light guide assembly comprises a reflecting film and a light guide plate, and the display screen is arranged above the light guide plate;
The light guide plate has a light incident side, a light emergent side and a light reflecting side opposite to the light emergent side, wherein the light incident side is perpendicular to the light emergent side;
The light source is arranged on the light inlet side of the light guide plate, the reflecting film is arranged on the bottom wall of the heat dissipation frame and is positioned on the light reflecting side of the light guide plate, one end of the flexible circuit board is attached to the light outlet side of the light guide plate, and the other end of the flexible circuit board is positioned above the light source and is electrically connected with the light source;
The light rays emitted by two adjacent light sources intersect at the outer side of the display screen, a first graphite sheet is arranged on one side, far away from the light sources, of the flexible circuit board, and a plurality of heat dissipation holes are formed in the heat dissipation frame.
2. The liquid crystal display device according to claim 1, wherein the heat dissipation Kong Kaishe is on a bottom wall of the heat dissipation frame, the bottom wall of the heat dissipation frame is in a direction approaching the light source, the diameter of the heat dissipation holes is gradually increased, and the density of the heat dissipation holes is gradually increased.
3. The liquid crystal display device according to claim 2, wherein a second graphite sheet is provided at an end of the bottom wall of the heat dissipation frame near the light source.
4. A liquid crystal display device according to any one of claims 1 to 3, wherein the heat dissipation frame is made of aluminum alloy.
5. A liquid crystal display device according to any one of claims 1 to 3, wherein the frame assembly comprises a first frame and a second frame, the first frame and the second frame being disposed on two sides of the light guide assembly, respectively;
The second glue frame is L-shaped, and the second glue frame comprises a first part and a second part arranged on the first part, wherein the first part is arranged on the bottom wall of the heat dissipation frame, and one end, far away from the light guide plate, of the flexible circuit board is positioned on the first part and is provided with a gap with the second part.
6. The liquid crystal display device of claim 5, further comprising a first polarizer and a second polarizer, wherein the first polarizer is disposed above the display screen, the second polarizer is disposed below the display screen, and a gap is disposed between the flexible circuit board and the display screen.
7. The liquid crystal display device according to claim 6, wherein a diffusion film, a first brightness enhancing sheet and a second brightness enhancing sheet are sequentially disposed above the light guide plate, and the diffusion film is disposed below the second polarizer.
8. The liquid crystal display device according to claim 1, wherein a side of the first graphite sheet away from the flexible circuit board is provided with a light shielding adhesive.
9. The liquid crystal display device of claim 8, wherein the flexible circuit board has a front surface and a back surface opposite to the front surface, the side of the flexible circuit board away from the light guide plate is the back surface, and the back surface is adhered and fixed with the first graphite sheet by a back adhesive;
The front surface of the flexible circuit board is adhered and fixed with the light guide plate through white double faced adhesive tape.
10. The liquid crystal display device according to claim 1, wherein the light source is an LED lamp, and wherein the diameter of the LED lamp is the same as the thickness of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323234472.7U CN221039721U (en) | 2023-11-29 | 2023-11-29 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323234472.7U CN221039721U (en) | 2023-11-29 | 2023-11-29 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039721U true CN221039721U (en) | 2024-05-28 |
Family
ID=91140743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323234472.7U Active CN221039721U (en) | 2023-11-29 | 2023-11-29 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221039721U (en) |
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2023
- 2023-11-29 CN CN202323234472.7U patent/CN221039721U/en active Active
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