CN220553063U - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN220553063U CN220553063U CN202321306644.4U CN202321306644U CN220553063U CN 220553063 U CN220553063 U CN 220553063U CN 202321306644 U CN202321306644 U CN 202321306644U CN 220553063 U CN220553063 U CN 220553063U
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- light
- liquid crystal
- guide plate
- light guide
- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 80
- 238000009792 diffusion process Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000149 argon plasma sintering Methods 0.000 abstract description 7
- 201000009310 astigmatism Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012788 optical film Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of displays, in particular to a liquid crystal display. The liquid crystal display comprises a liquid crystal panel and a backlight module, wherein the backlight module comprises a light guide plate and a light source, at least one side surface of the light guide plate is a light incident surface, and the light source is arranged adjacent to the light incident surface. One end face of the light guide plate in the thickness direction is a light emitting face, and the liquid crystal panel is adhered to the light emitting face. The other end face of the light guide plate in the thickness direction is provided with a reflecting layer, and the light guide plate is internally provided with a lattice point diffusion layer close to the reflecting layer. After light emitted by the light source enters the light guide plate through the incident surface, the light is uniformly distributed in the light guide plate through the reflection effect of the lattice point light scattering layer, so that the light guide plate and the light source are matched to form a surface light source, the structures such as a reflecting plate and a diffusion plate in the conventional backlight module are not required, the structure of the backlight module is simplified, the overall thickness of the liquid crystal display is greatly reduced, the light and thin design of the liquid crystal display is realized, and the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of displays, in particular to a liquid crystal display.
Background
The liquid crystal display (Liquid Crystal Display, LCD) is a flat, ultra-thin display device, and has the characteristics of high image quality, small size, and light weight, and is therefore popular with users, and is a main stream of display products.
Most of the existing liquid crystal displays are backlight type liquid crystal displays, which mainly comprise a liquid crystal panel and a backlight module, wherein the liquid crystal panel cannot self-emit light and needs to be matched with a direct type or side-entry type backlight module to provide a surface light source for the liquid crystal panel. The backlight module comprises a back plate, a reflecting sheet, a light guide plate, an optical film and the like which are arranged in a laminated mode, the overall thickness is large, the overall thickness of the liquid crystal display is large, and the requirements of users on the light and thin liquid crystal display are difficult to meet.
Disclosure of Invention
The utility model aims to provide a liquid crystal display to solve the problem of larger overall thickness of the liquid crystal display and realize the light and thin design of the liquid crystal display.
The technical scheme adopted by the utility model is as follows:
the liquid crystal display comprises a liquid crystal panel and a backlight module, wherein the backlight module comprises a light guide plate and a light source, at least one side surface of the light guide plate is a light incident surface, and the light source is arranged adjacent to the light incident surface;
one end face of the light guide plate in the thickness direction is a light emitting face, and the liquid crystal panel is adhered to the light emitting face; the other end face of the light guide plate in the thickness direction is provided with a reflecting layer, and the light guide plate is internally provided with a lattice point diffusion layer close to the reflecting layer.
Preferably, the lattice point astigmatism layer is provided with a plurality of astigmatism particles which are uniformly distributed and form a lattice point structure.
Preferably, the light scattering particles are irregularly shaped particles.
As a preferable scheme, a glue layer is arranged between the liquid crystal panel and the light-emitting surface, and the liquid crystal panel is in full-fit connection with the light-emitting surface through the glue layer.
Preferably, a plurality of microstructure particles are uniformly arranged in the glue layer.
As a preferable scheme, a transparent waterproof heat dissipation adhesive layer is arranged between the light source and the light incident surface, and the light source is in full-fit connection with the light incident surface through the waterproof heat dissipation adhesive layer.
As a preferable scheme, the liquid crystal panel comprises a lower polaroid, a TFT substrate, a liquid crystal layer, a CF substrate and an upper polaroid which are sequentially stacked, wherein the lower polaroid is adhered to the light-emitting surface.
Preferably, the TFT substrate, the CF substrate and the light guide plate have the same thickness.
Preferably, the thickness of the light guide plate is 0.5mm to 1.1mm.
Preferably, the light guide plate is light guide glass or a transparent plastic plate, and the light source is an LED lamp strip.
The beneficial effects of the utility model are as follows:
the liquid crystal display comprises a liquid crystal panel and a backlight module, wherein the backlight module comprises a light guide plate and a light source, the liquid crystal panel is adhered to the light emitting surface of the light guide plate, and the light source is arranged adjacent to the light entering surface of the light guide plate. The other end face of the light guide plate in the thickness direction is provided with a reflecting layer, and the light guide plate is internally provided with a lattice point diffusion layer close to the reflecting layer. After light emitted by the light source enters the light guide plate through the incident surface, the light is uniformly distributed in the light guide plate after being reflected by the lattice point light scattering layer, so that the light guide plate and the light source are matched to form a surface light source, the structures such as a reflecting plate and a diffusion plate in the conventional backlight module are not required to be used, the structure of the backlight module is simplified, the overall thickness of the liquid crystal display is greatly reduced, the light and thin design of the liquid crystal display is realized, and the cost is reduced.
Drawings
Fig. 1 is a cross-sectional view of a liquid crystal display provided in an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a backlight module according to an embodiment of the present utility model.
The parts in the figures are named and numbered as follows:
1. a light guide plate; 11. a reflective layer; 12. a dot astigmatism layer; 120. astigmatic particles; 2. a light source; 3. a glue layer; 4. a liquid crystal panel; 41. a lower polarizer; 42. a TFT substrate; 43. a liquid crystal layer; 44. a CF substrate; 45. and (5) applying a polaroid.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Most of the existing liquid crystal displays are backlight type liquid crystal displays, which mainly comprise a liquid crystal panel and a backlight module, wherein the liquid crystal panel cannot self-emit light and needs to be matched with a direct type or side-entry type backlight module to provide a surface light source for the liquid crystal panel. The backlight module comprises a back plate, a reflecting sheet, a light guide plate, an optical film and the like which are arranged in a laminated mode, the overall thickness is large, the overall thickness of the liquid crystal display is large, and the requirements of users on the light and thin liquid crystal display are difficult to meet.
In order to solve the above-mentioned problems, as shown in fig. 1, the present embodiment provides a liquid crystal display, which includes a liquid crystal panel 4 and a backlight module, the backlight module includes a light guide plate 1 and a light source 2, at least one side surface of the light guide plate 1 is a light incident surface, and the light source 2 is disposed adjacent to the light incident surface. One end surface of the light guide plate 1 in the thickness direction is a light exit surface, and the liquid crystal panel 4 is adhered to the light exit surface. The light guide plate 1 has a reflective layer 11 on the other end face in the thickness direction, and a dot diffusion layer 12 adjacent to the reflective layer 11 is provided in the light guide plate 1.
In the present embodiment, the liquid crystal panel 4 is adhered to the light emitting surface of the light guide plate 1, and the light source 2 is disposed adjacent to the light entering surface of the light guide plate 1. The light guide plate 1 has a reflective layer 11 on the other end face in the thickness direction, and a dot diffusion layer 12 near the reflective layer 11 is provided in the light guide plate 1. After the light emitted by the light source 2 enters the light guide plate 1 through the incident surface, the light is uniformly distributed in the light guide plate 1 after being reflected by the lattice point light scattering layer 12, so that the light guide plate 1 and the light source are matched to form a surface light source, the structures such as a reflecting plate and a diffusion plate in the existing backlight module are not needed, the structure of the backlight module is simplified, the whole thickness of the liquid crystal display is greatly reduced, the light and thin design of the liquid crystal display is realized, and the cost is reduced.
As shown in fig. 1, the liquid crystal panel 4 includes a lower polarizer 41, a TFT substrate 42, a liquid crystal layer 43, a CF substrate 44, and an upper polarizer 45 stacked in this order, and the lower polarizer 41 is adhered to the light-emitting surface. Wherein TFT circuitry is provided on TFT substrate 42 and CF is provided on CF substrate 44. Since the liquid crystal panel 4 is a prior art, a detailed description of the specific structure of the liquid crystal panel 4 is not given.
It should be noted that, the light guide plate 1 is light guide glass, the TFT substrate 42 is a TFT glass plate, the CF substrate 44 is a CF glass plate, and the thicknesses of the TFT substrate 42, the CF substrate 44 and the light guide plate 1 are equal, so that the TFT substrate 42, the CF substrate 44 and the light guide plate 1 can be processed and prepared by the same glass production line, thereby improving the production efficiency and reducing the production cost. In other embodiments, the light guide plate 1 may also be a transparent plastic plate. Such as PMMP plates, etc., are not particularly limited herein.
Further, the thickness of the light guide plate 1 is 0.5mm to 1.1mm. In this embodiment, the thicknesses of the TFT substrate 42, the CF substrate 44 and the light guide plate 1 are all 0.5mm, so that the overall thickness of the liquid crystal display is about 1.7mm, and an integral ultrathin design of the liquid crystal display is realized. In other embodiments, the thickness of the light guide plate 1 may be adjusted to 0.6mm, 0.7mm, 0.8mm, 1mm, 1.1mm, etc. according to design requirements.
Further, the light source 2 is an LED lamp strip, the cost of the LED lamp strip is low, the LED lamp strip is convenient to bond, and the assembly efficiency of the light source 2 is improved. One side surface of the light guide plate 1 is a light incident surface, and the LED lamp strips are equal in length with the light incident surface and are adhered to the light incident surface. Of course, the light source 2 may also be other types of light emitting lamps, such as stripe lamps, etc., which are not particularly limited herein.
In this embodiment, the dot light diffusion layer 12 is processed in the light guide plate 1 by a yellow light process, so that the processing efficiency of the dot light diffusion layer 12 is improved. In addition, the halftone dot light diffusion layer 12 and other parts of the light guide plate 1 are integrally formed, so that encapsulation is not needed, the position deviation of the halftone dot light diffusion layer 12 is avoided, and the stability and reliability of the halftone dot light diffusion layer 12 are improved. The uniform diffusion of light in the light guide plate 1 is realized through the lattice point light diffusion layer 12, the light guide effect of the light guide plate 1 is improved, the diffusion plate is not required to be added in the backlight module, the thickness of the backlight module is reduced, and the light and thin design of the liquid crystal display is facilitated.
Specifically, the reflective layer 11 is formed on the other end face of the light guide plate 1 in the thickness direction by sputtering by a metal sputtering process, and the processing efficiency of the reflective layer 11 is improved. Light of the light source 2 is reflected in the light guide plate 1 through the reflecting layer 11, light leakage is avoided, the light guide effect of the light guide plate 1 is improved, the reflecting plate is not required to be added in the backlight module, the thickness of the backlight module is reduced, and the light and thin design of the liquid crystal display is facilitated.
As shown in fig. 2, the lattice point light-diffusing layer 12 has a plurality of light-diffusing particles 120 uniformly distributed and forming a lattice point structure, so that the light of the light source 2 is scattered in the light guide plate 1 by the uniformly distributed light-diffusing particles 120, uniform diffusion of the light in the light guide plate 1 is realized, and the optical performance of the light guide plate 1 and the display effect of the liquid crystal display are improved.
Specifically, the light-scattering particles 120 are particles with irregular shapes, and the light-scattering particles 120 are micro-particles with micro-scale and have no regular shape, so as to ensure that light can be diffused in multiple directions when the light irradiates on different surfaces of the light-scattering particles 120, avoid light and shade distinction in the light guide plate 1, and improve the light guide effect of the light guide plate 1 and the display effect of the liquid crystal display.
As shown in fig. 1, a glue layer 3 is disposed between the liquid crystal panel 4 and the light-emitting surface, and the liquid crystal panel 4 and the light-emitting surface are fully bonded and connected by the glue layer 3, so that the contact area between the lower polarizer 41 and the light-emitting surface is increased, i.e. the bonding strength and reliability of the liquid crystal panel 4 and the backlight module are improved, and the stability of the liquid crystal display is improved. In other embodiments, the lower polarizer 41 and the light-emitting surface may be further connected by a frame-attaching method using glue or double-sided adhesive.
Further, a plurality of micro-structure particles are uniformly arranged in the glue layer 3, so that light emitted from the light emitting surface of the light guide plate 1 is scattered again through the micro-structure particles in the glue layer 3, the uniformity of the light emitted into the lower polarizer 41 is further improved, and the display effect of the liquid crystal display is further improved. It should be noted that the microstructured particles in the glue layer 3 likewise have a random shape.
As shown in fig. 1 and 2, a transparent waterproof heat dissipation adhesive layer is arranged between the light source 2 and the light incident surface, the light source 2 and the light incident surface are in full lamination connection through the waterproof heat dissipation adhesive layer, so that the contact area between the light source 2 and the light incident surface is increased, namely, the bonding strength and reliability between the light guide plate 1 and the light source 2 are improved, and the stability of the liquid crystal display is improved. The waterproof heat dissipation glue layer can avoid external water vapor, impurities and the like from entering between the light source 2 and the light incident surface, so that good packaging of the backlight module is realized, and protection of the light source 2 is improved. Meanwhile, the heat of the light source 2 can be quickly diffused to the outside of the liquid crystal display through the waterproof heat dissipation adhesive layer, so that the heat dissipation effect of the light source 2 is improved.
The above embodiments merely illustrate the basic principle and features of the present utility model, and the present utility model is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The liquid crystal display is characterized by comprising a liquid crystal panel (4) and a backlight module, wherein the backlight module comprises a light guide plate (1) and a light source (2), at least one side surface of the light guide plate (1) is a light incident surface, and the light source (2) is arranged adjacent to the light incident surface;
one end face of the light guide plate (1) in the thickness direction is a light emitting face, and the liquid crystal panel (4) is adhered to the light emitting face; the light guide plate (1) is provided with a reflecting layer (11) on the other end face in the thickness direction, and the light guide plate (1) is internally provided with a lattice point diffusion layer (12) close to the reflecting layer (11).
2. The liquid crystal display according to claim 1, wherein a glue layer (3) is arranged between the liquid crystal panel (4) and the light emitting surface, and the liquid crystal panel (4) and the light emitting surface are in full-fit connection through the glue layer (3).
3. A liquid crystal display according to claim 2, characterized in that a plurality of micro-structured particles are uniformly arranged in the glue layer (3).
4. A liquid crystal display according to any one of claims 1 to 3, wherein a transparent waterproof heat dissipation adhesive layer is arranged between the light source (2) and the light incident surface, and the light source (2) and the light incident surface are in full-fit connection through the waterproof heat dissipation adhesive layer.
5. A liquid crystal display according to any one of claims 1 to 3, wherein the liquid crystal panel (4) comprises a lower polarizer (41), a TFT substrate (42), a liquid crystal layer (43), a CF substrate (44) and an upper polarizer (45) stacked in this order, and the lower polarizer (41) is adhered to the light-emitting surface.
6. The liquid crystal display according to claim 5, wherein the TFT substrate (42), the CF substrate (44) and the light guide plate (1) have the same thickness.
7. The liquid crystal display according to claim 6, wherein the thickness of the light guide plate (1) is 0.5mm to 1.1mm.
8. A liquid crystal display according to any one of claims 1-3, characterized in that the light guide plate (1) is a light guide glass or a transparent plastic plate, and the light source (2) is an LED strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306644.4U CN220553063U (en) | 2023-05-26 | 2023-05-26 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306644.4U CN220553063U (en) | 2023-05-26 | 2023-05-26 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220553063U true CN220553063U (en) | 2024-03-01 |
Family
ID=90007161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321306644.4U Active CN220553063U (en) | 2023-05-26 | 2023-05-26 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220553063U (en) |
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2023
- 2023-05-26 CN CN202321306644.4U patent/CN220553063U/en active Active
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