CN211375270U - Backlight assembly of liquid crystal module and liquid crystal module - Google Patents

Backlight assembly of liquid crystal module and liquid crystal module Download PDF

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Publication number
CN211375270U
CN211375270U CN202020331147.XU CN202020331147U CN211375270U CN 211375270 U CN211375270 U CN 211375270U CN 202020331147 U CN202020331147 U CN 202020331147U CN 211375270 U CN211375270 U CN 211375270U
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CN
China
Prior art keywords
light
guide plate
reflector
liquid crystal
light guide
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Expired - Fee Related
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CN202020331147.XU
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Chinese (zh)
Inventor
徐勇
孙文波
吴春生
夏继泰
杨阳
尹慧娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei BOE Display Lighting Co Ltd
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BOE Technology Group Co Ltd
Hefei BOE Display Lighting Co Ltd
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Priority to CN202020331147.XU priority Critical patent/CN211375270U/en
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Publication of CN211375270U publication Critical patent/CN211375270U/en
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Abstract

The utility model discloses a backlight module and LCD module of LCD module. The backlight assembly includes: the utility model provides a backlight module, the utility model discloses a backlight module, the light guide plate, the reflector plate, light source part and extinction reflector, the reflector plate is located the one side of keeping away from liquid crystal display panel at the light guide plate, the reflector plate is suitable for and sets up on the backplate, and be equipped with the light leak clearance between reflector plate and the light guide plate, light source part establishes in one side of light guide plate and gives out light towards the light guide plate, extinction reflector establishes in the light leak clearance and establishes on the light guide plate, and extinction reflector is close to the light source part setting, be equipped with light-absorbing surface and reflection of light face. The utility model discloses a backlight unit is through setting up the extinction reflector in this light leak clearance to the part light that the direct irradiation was on the reflector plate is absorbed by the light-absorbing surface, and then avoids this part light to shine in the light guide plate, and is more on a large side than the intermediate position yellow light in order to avoid liquid crystal display panel border position, leads to the problem emergence of light yellow on a large side.

Description

Backlight assembly of liquid crystal module and liquid crystal module
Technical Field
The utility model belongs to the technical field of the display and specifically relates to a backlight module and LCD module of LCD module are related to.
Background
In the related art, the lcd mainly includes a liquid crystal panel and a backlight, the backlight includes a light source unit, a light guide plate and a reflective sheet, the light source unit emits light toward the light guide plate, and the light in the light guide plate is reflected by the reflective sheet and then transmitted to the liquid crystal panel.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.
Therefore, the utility model provides a backlight module of liquid crystal module to avoid the light source part to shine the light reflection to the light guide plate on the reflector plate through the light leak clearance.
The utility model discloses still provide a liquid crystal module who has above-mentioned backlight unit.
According to the utility model discloses liquid crystal module's backlight unit, liquid crystal module has liquid crystal display panel and backplate, backlight unit is located liquid crystal display panel with between the backplate, backlight unit includes: light guide plate, reflector plate, light source part and extinction reflection piece, the reflector plate is located the light guide plate is kept away from one side of liquid crystal display panel, the reflector plate is suitable for to set up on the backplate, just the reflector plate with be equipped with the light leak clearance between the light guide plate, the light source part is established one side of light guide plate is with the orientation the light guide plate is luminous, extinction reflection piece is established in the light leak clearance and establish on the light guide plate, just extinction reflection piece is close to light source part sets up, be equipped with relative light-absorbing surface and the reflection of light face that sets up on the extinction reflection piece, the light-absorbing surface orientation the reflector plate sets up with the absorption in the light leak clearance the light that the reflector plate reflects, reflection of light face orientation the light guide plate sets up with the reflection at least part light in the light.
According to the utility model discloses liquid crystal module's backlight unit is through setting up the extinction reflector in this light leak clearance to make the part light that direct irradiation goes up on the reflector plate absorbed by the light-absorbing face, and then avoid this part light to shine in the light guide plate, in order to avoid liquid crystal panel border position to be more than the intermediate position yellow light partially, lead to the problem emergence of light yellow partially. When part of light in the light guide plate irradiates the light absorption reflector, the part of light is reflected by the reflecting surface and then irradiates the liquid crystal panel through the light guide plate, so that the brightness and the color are provided for the liquid crystal panel, the integral chromaticity of the liquid crystal panel is ensured to be approximately the same, and the picture quality of the liquid crystal module is improved.
In some embodiments of the present invention, the light absorption reflector includes a base and a reflection portion provided on the base, the reflection portion defines the light reflection surface, and the light absorption reflector is connected to the light guide plate through the reflection portion.
In some embodiments of the present invention, the reflection portion includes a light-transmitting reflection portion, the light-transmitting reflection portion includes a plurality of light-transmitting portions and a plurality of reflection portions, and the reflection portions are spaced apart from each other and adjacent to each other, and the light-transmitting portions are disposed between the reflection portions, and light is transmitted through the light-transmitting portions and absorbed by the light-absorbing surface.
In some embodiments of the present invention, each of the light-reflecting portions is a convex dot on the substrate.
In some embodiments of the present invention, the light-transmitting and light-reflecting portion includes a light-reflecting powder and a transparent adhesive member, the light-reflecting powder is mixed in the adhesive member to define the light-reflecting portion, the transparent adhesive member defines the light-transmitting portion, and the adhesive member is adhered to the light guide plate.
In some embodiments of the present invention, the light-transmitting and light-reflecting portion further includes a white-leaving portion for increasing the light-mixing distance, the white-leaving portion is disposed at the orientation of the light-reflecting portion to one side of the light guide plate.
In some embodiments of the present invention, the light absorption reflector further comprises a reflection connector, the reflection connector is disposed on the base, the reflection connector is disposed at an interval with the light-transmitting and light-reflecting portion, and the reflection connector is used for reflecting the light in the light guide plate and installing the light absorption reflector on the light guide plate.
In some embodiments of the present invention, the reflective connector is a double-sided tape.
In some embodiments of the present invention, the substrate is provided with a black coating member to define the light absorbing surface.
According to the utility model discloses liquid crystal module, include: liquid crystal display panel, backplate and backlight unit, backlight unit is located liquid crystal display panel with between the backplate, backlight unit is according to the utility model discloses above-mentioned embodiment backlight unit.
According to the utility model discloses LCD module is through setting up the extinction reflection part in this light leak clearance to make the part light that direct irradiation goes up on the reflector plate absorbed by the light-absorbing face, and then avoid in this part light shines the light guide plate, in order to avoid liquid crystal panel border position to be more than the intermediate position yellow light partially, lead to the problem emergence of light yellow partially. When part of light in the light guide plate irradiates the light absorption reflector, the part of light is reflected by the reflecting surface and then irradiates the liquid crystal panel through the light guide plate, so that the brightness and the color are provided for the liquid crystal panel, the integral chromaticity of the liquid crystal panel is ensured to be approximately the same, and the picture quality of the liquid crystal module is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a partial schematic view of a liquid crystal module according to an embodiment of the present invention;
fig. 2 is a partial schematic view of a backlight assembly according to an embodiment of the present invention;
fig. 3 is a schematic view of a light absorbing reflector according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a light absorbing reflector according to an embodiment of the present invention;
fig. 5 is a schematic view of a light reflecting portion according to an embodiment of the present invention.
Reference numerals:
100. a liquid crystal module;
10. a backlight assembly;
1. a liquid crystal panel;
2. a back plate;
3. a light guide plate;
4. a reflective sheet;
5. a light leakage gap;
6. a light source part;
7. a light absorbing reflector; 71. a light absorbing surface; 72. a reflection section; 721. a light-transmitting and light-reflecting portion; 7211. a light-transmitting portion; 7212. a light reflecting section; 7213. light reflecting powder; 7214. an adhesive member; 7215. a blank section; 722. a reflective connector; 73. a substrate;
8. a rubber frame;
9. a film material.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The backlight assembly 10 of the liquid crystal module 100 according to the embodiment of the present invention is described below with reference to fig. 1 to 5, the liquid crystal module 100 has a liquid crystal panel 1 and a back plate 2, the backlight assembly 10 is located between the liquid crystal panel 1 and the back plate 2, and the backlight assembly 10 is adapted to provide brightness and color for the liquid crystal panel 1.
According to the utility model discloses backlight module 10 of liquid crystal module 100, include: the backlight module comprises a light guide plate 3, a reflecting sheet 4, a light source part 6 and a light absorption reflecting piece 7, wherein the reflecting sheet 4 is positioned on one side of the light guide plate 3 far away from the liquid crystal panel 1, the reflecting sheet 4 is suitable for being arranged on a back plate 2, a light leakage gap 5 is arranged between the reflecting sheet 4 and the light guide plate 3, and the light source part 6 is arranged on one side of the light guide plate 3 to emit light to the light guide plate 3.
It can be understood that, by disposing the light source part 6 at one side of the light guide plate 3, light emitted from the light source part 6 can be irradiated into the light guide plate 3, and light entering the light guide plate 3 is reflected by the reflective sheet 4 and then irradiated onto the liquid crystal panel 1 through the light guide plate 3, thereby providing brightness and color to the liquid crystal panel 1.
The light absorption reflector 7 is disposed in the light leakage gap 5 and on the light guide plate 3, the light absorption reflector 7 is disposed close to the light source part 6, the light absorption reflector 7 is provided with a light absorption surface 71 and a light reflection surface which are disposed oppositely, the light absorption surface 71 is disposed toward the reflector 4 to absorb the light reflected by the reflector 4 in the light leakage gap 5, and the light reflection surface is disposed toward the light guide plate 3 to reflect at least part of the light in the light guide plate 3.
It is understood that, since the light leakage gap 5 is formed between the reflective sheet 4 and the light guide plate 3, a part of the light emitted from the light source unit 6 is directly irradiated onto the reflective sheet 4, so that the edge position of the liquid crystal panel 1 is more than the yellow light at the middle position. In the related art, the light leakage gap 5 is prevented from being formed by strictly controlling the flatness of the rear plate 2 to solve the above problem, but the method of controlling the flatness of the rear plate 2 has large limitation, high cost and low production efficiency.
According to the backlight assembly 10 of the embodiment of the present invention, by disposing the light absorbing reflector 7 in the light leakage gap 5 and disposing the light absorbing surface 71 toward the reflecting sheet 4, so that a part of the light directly irradiated onto the reflection sheet 4 is reflected by the reflection sheet 4 and irradiated onto the light absorbing surface 71 of the light absorbing and reflecting member 7, the part of the light is absorbed by the light absorbing surface 71, further avoiding the problem that the edge position of the liquid crystal panel 1 is more than the yellow light at the middle position to cause the yellow light, thereby ensuring the chromaticity of the whole liquid crystal panel 1 to be substantially the same even if the light leakage gap 5 is formed between the reflection sheet 4 and the light guide plate 3, improving the picture quality of the liquid crystal module 100, further, it is not necessary to strictly control the flatness of the back plate 2, thereby improving the production efficiency of the backlight assembly 10 and reducing the production cost of the backlight assembly 10.
Meanwhile, the reflecting surface of the light absorption reflector 7 faces the light guide plate 3, and then when light emitted by the light source component 6 irradiates the light guide plate 3, part of the light in the light guide plate 3 irradiates the light absorption reflector 7, and the part of the light irradiates the liquid crystal panel 1 through the light guide plate 3 after being reflected by the reflecting surface, so that the light reflecting effect of the part of the light guide plate 3, which is provided with the light absorption reflector 7, is ensured, and the whole light emitting effect of the backlight assembly 10 is ensured.
According to the utility model discloses backlight unit 10 of LCD module 100 through set up extinction reflector 7 in this light leak clearance 5 to make the part light that direct irradiation goes up reflector plate 4 absorb by light-absorbing surface 71, and then avoid this part light to shine in the light guide plate 3, it is more than the intermediate position yellow light to avoid the marginal position of liquid crystal display panel 1, leads to the problem emergence of light yellow partially. When part of light in the light guide plate 3 irradiates the light absorption reflector 7, the part of light is reflected by the light reflection surface and then irradiates the liquid crystal panel 1 through the light guide plate 3, so that the brightness and the color are provided for the liquid crystal panel 1, the overall chromaticity of the liquid crystal panel 1 is ensured to be approximately the same, and the picture quality of the liquid crystal module 100 is improved.
As shown in fig. 3 and 4, in some embodiments of the present invention, the light absorbing reflector 7 includes a base 73 and a reflection portion 72 disposed on the base 73, the reflection portion 72 defines a light reflection surface, and the light absorbing reflector 7 is connected to the light guide plate 3 through the reflection portion 72. It will be appreciated that the reflecting portion 72 may define a light reflecting surface of the light absorbing reflector 7, and on the one hand, the light absorbing reflector 7 is connected to the light guide plate 3 through the reflecting portion 72, so that the connection structure of the light absorbing reflector 7 and the light guide plate 3 is simpler.
On the other hand, when the light emitted from the light source element 6 is irradiated into the light guide plate 3, a part of the light in the light guide plate 3 is irradiated onto the light absorption reflector 7, and the part of the light is reflected by the reflection part 72 and then irradiated onto the liquid crystal panel 1 through the light guide plate 3, so as to ensure that the light irradiated onto the light absorption reflector 7 is reflected, ensure that no picture quality difference exists between the area of the light guide plate 3 where the light absorption reflector 7 is arranged and the area where the light absorption reflector 7 is not arranged, further ensure that the chromaticity of the whole liquid crystal panel 1 is approximately the same, and improve the picture quality of the liquid crystal.
In some embodiments of the present invention, the base 73 may be a light-transmitting adhesive tape, so as to facilitate the adhesion of the light-absorbing surface 71 and the reflecting portion 72 to the base 73, so as to simplify the structure of the light-absorbing reflector 7. The material of the base 73 may be limited according to actual use, and is not limited herein.
As shown in fig. 3 and 4, in some embodiments of the present invention, the reflection portion 72 includes a light-transmitting reflection portion 721, the light-transmitting reflection portion 721 includes a plurality of light-transmitting portions 7211 and a plurality of reflection portions 7212, the plurality of reflection portions 7212 are disposed at intervals, a light-transmitting portion 7211 is disposed between two adjacent reflection portions 7212, and light is absorbed by the light-absorbing surface 71 through the light-transmitting portion 7211. It can be understood that, by arranging the plurality of light reflecting portions 7212 and the plurality of light transmitting portions 7211 alternately, when light emitted from the light source component 6 is irradiated into the light guide plate 3 and part of the light in the light guide plate 3 is irradiated onto the light absorbing reflector 7, a part of the light irradiated onto the light absorbing reflector 7 is reflected by the light reflecting portions 7212 and then irradiated onto the liquid crystal panel 1 through the light guide plate 3, and another part of the light irradiated onto the light absorbing reflector 7 can be irradiated onto the light absorbing surface 71 through the light transmitting portions 7211 and the base 73 and absorbed by the light absorbing surface 71, so that only a part of the light irradiated onto the light absorbing reflector 7 is reflected by the reflecting portion 72, thereby avoiding that the local brightness of the liquid crystal panel 1 is high, ensuring that the chromaticity of the whole liquid crystal panel 1 is substantially the same, and improving the picture quality of the liquid crystal module.
As shown in fig. 3 to 5, in some embodiments of the present invention, the light transmitting and reflecting part 721 includes a light reflecting powder 7213 and a transparent adhesive member 7214, the light reflecting powder 7213 is mixed in the adhesive member 7214 to define a light reflecting part 7212, the transparent adhesive member 7214 defines a light transmitting part 7211, and the adhesive member 7214 is attached to the light guide plate 3. It can be understood that the connection structure of the light absorption reflecting member 7 and the light guide plate 3 is made simpler by attaching the transparent adhesive member 7214 to the light guide plate 3 and then attaching the light absorption reflecting member 7 to the light guide plate 3.
Meanwhile, by mixing the reflective powder 7213 in the transparent adhesive member 7214, when the light emitted from the light source part 6 is irradiated into the light guide plate 3 and a part of the light in the light guide plate 3 is irradiated onto the light absorption reflecting member 7, a part of the light irradiated onto the light absorption reflecting member 7 can be reflected by the reflective powder 7213, and the other part of the light passes through the transparent adhesive member 7214 and the substrate 73 to be irradiated onto the light absorption surface 71 and absorbed by the light absorption surface 71, so that only a part of the light irradiated onto the light absorption reflecting member 7 is reflected by the reflective powder 7213, the local brightness of the liquid crystal panel 1 is prevented from being high, the integral chromaticity of the liquid crystal panel 1 is ensured to be substantially the same, and the picture quality of the liquid crystal module 100 is improved.
In some embodiments of the present invention, the reflective powder 7213 may be titanium dioxide, the transparent adhesive 7214 may be adhesive silica gel, and the light-transmitting reflective portion 721 has certain viscosity and light transmittance, so that the light-absorbing reflective member 7 is adhered to the light guide plate 3, and light can pass through the adhesive 7214 to be reflected by the reflective powder 7213 or absorbed by the light-absorbing surface 71. It should be noted that the materials of the reflective powder 7213 and the adhesive 7214 may be limited according to the actual use, as long as the reflective powder 7213 can reflect light and the light can pass through the adhesive 7214, which is not limited herein.
As shown in fig. 3 and 4, in some embodiments of the invention, each light reflecting portion 7212 is a raised dot that is raised above the substrate 73. It can be understood that the light reflecting portion 7212 may be a raised dot protruding on the substrate 73, a light transmitting portion 7211 is formed between two adjacent dots, and further a part of light irradiated on the light absorbing reflector 7 is reflected by the dots, and another part of light is irradiated on the light absorbing surface 71 through the light transmitting portion 7211 and the substrate 73 and absorbed by the light absorbing surface 71, so as to avoid the local brightness of the liquid crystal panel 1 from being high, to ensure that the overall chromaticity of the liquid crystal panel 1 is substantially the same, and to improve the picture quality of the liquid crystal module 100.
In some embodiments of the present invention, the reflective portion 7212 may be a reflective line disposed on the substrate, and multiple reflective lines are disposed in a criss-cross manner, so that the transparent reflective portion 721 is substantially in a grid shape, a transparent portion 7211 is defined in a blank area surrounded by multiple reflective lines, and a part of light reflected by multiple reflective lines is irradiated on the light absorption reflector 7, and another part of light is irradiated on the light absorption surface 71 through the transparent portion 7211 and the substrate 73, and is absorbed by the light absorption surface 71, thereby avoiding the local brightness of the liquid crystal panel 1 to be higher, so as to ensure that the overall chromaticity of the liquid crystal panel 1 is substantially the same, and improve the picture quality of the liquid crystal module 100.
As shown in fig. 5, in some embodiments of the present invention, the light-transmitting and reflecting portion 721 further includes a white-out portion 7215 for increasing the light mixing distance, and the white-out portion 7215 is disposed on one side of the light-reflecting portion 7212 facing the light guide plate 3. It can be understood that, by arranging the blank space 7215 on the side of the light reflecting portion 7212 close to the light guide plate 3, and then when the light emitted by the light source component 6 irradiates the light guide plate 3, and when the partial light in the light guide plate 3 irradiates the light absorption reflector 7, the partial light firstly passes through the blank space 7215 and then is reflected by the light reflecting portion 7212, so that the light mixing distance of the light is increased, the color of the light reflected back to the light guide plate 3 is more uniform, and further the overall chromaticity of the liquid crystal panel 1 is ensured to be approximately the same.
As shown in fig. 5, in some embodiments of the present invention, the blank part 7215 and the adhesive member 7214 are formed as a single piece, i.e., the blank part 7215 and the adhesive member 7214 are both made of adhesive silicone, so as to simplify the structure of the light absorbing reflection part 72.
As shown in fig. 3 and 4, in some embodiments of the present invention, the light absorbing reflector 7 further includes a reflective connector 722, the reflective connector 722 is disposed on the substrate 73, the reflective connector 722 and the light-transmissive and reflective portion 721 are disposed at intervals, and the reflective connector 722 is used for reflecting a portion of light in the light guide plate 3 and mounting the light absorbing reflector 7 on the light guide plate 3. It can be understood that, by disposing the reflective connector 722 and the light transmissive and reflective part 721 on the substrate 73 at intervals, the light absorbing and reflective member 7 can be connected to the light guide plate 3 through the reflective connector 722 and the light transmissive and reflective part 721, respectively, so as to improve the connection strength between the light absorbing and reflective member 7 and the light guide plate 3, and to stabilize the structure of the backlight assembly 10.
Meanwhile, when the light emitted from the light source element 6 is irradiated into the light guide plate 3, a part of the light in the light guide plate 3 is irradiated onto the light absorption reflector 7, and the part of the light is reflected by the reflection connector 722 and then irradiated onto the liquid crystal panel 1 through the light guide plate 3, so that the light irradiated onto the light absorption reflector 7 is reflected, the overall chromaticity of the liquid crystal panel 1 is further ensured to be approximately the same, and the picture quality of the liquid crystal module 100 is improved.
In some embodiments of the present invention, the reflective connector 722 is a double-sided tape. It can be understood that the pasting part is a double-sided tape, so that one side of the pasting part is pasted with the light guide plate 3, and the other side of the pasting part is pasted with the substrate 73, so that the connection structure of the substrate 73 and the light guide plate 3 is simpler.
Meanwhile, the double-sided adhesive is attached to the light guide plate 3, and because the reflectivity of the double-sided adhesive is different from the reflectivity of the light guide plate 3, the contact surface of the double-sided adhesive and the light guide plate 3 forms a reflection surface, so that when part of light in the light guide plate 3 irradiates the light absorption reflector 7, the part of light is reflected by the reflection surface and then irradiates the liquid crystal panel 1 through the light guide plate 3, so as to ensure that the light irradiated on the light absorption reflector 7 is reflected, further ensure that the integral chromaticity of the liquid crystal panel 1 is substantially the same, and improve the picture quality of the liquid crystal module 100.
In some embodiments of the present invention, the substrate 73 is provided with a black coating to define the light absorbing surface 71. It can be understood that the light absorbing surface 71 can be a black coating member, since black has the effect of absorbing light, and further can be absorbed when the light irradiates on the light absorbing surface 71, so as to ensure that part of the light directly irradiating on the reflector 4 can be absorbed after being reflected by the reflector 4, thereby avoiding the problem that the edge position of the liquid crystal panel 1 is more than yellow light at the middle position, which causes the light to be yellow,
in some embodiments of the present invention, the light absorbing surface 71 may also be a red coating, which absorbs light when it strikes the light absorbing surface 71. The color of the light absorbing surface 71 may be limited according to actual use, as long as the light absorbing surface 71 absorbs light irradiated thereto, and the color of the light absorbing surface 71 is not limited herein.
As shown in fig. 1 to 5, a liquid crystal module 100 according to an embodiment of the present invention includes: liquid crystal display panel 1, backplate 2 and backlight assembly 10, backlight assembly 10 is located between liquid crystal display panel 1 and backplate 2, and backlight assembly 10 is according to the utility model discloses above-mentioned embodiment's backlight assembly 10.
According to the utility model discloses LCD module 100 is through setting up extinction reflector 7 in this light leak clearance 5 to make the part light that the direct irradiation was on reflector plate 4 absorbed by light-absorbing surface 71, and then avoid this part light to shine in the light guide plate 3, in order to avoid liquid crystal display panel 1 border position to be more than the intermediate position yellow light, lead to the yellow problem emergence of light partially. When part of light in the light guide plate 3 irradiates the light absorption reflector 7, the part of light is reflected by the light reflection surface and then irradiates the liquid crystal panel 1 through the light guide plate 3, so that the brightness and the color are provided for the liquid crystal panel 1, the overall chromaticity of the liquid crystal panel 1 is ensured to be approximately the same, and the picture quality of the liquid crystal module 100 is improved.
As shown in fig. 1 to 5, in some embodiments of the present invention, the liquid crystal module 100 further includes a rubber frame 8, the liquid crystal panel 1 and the back plate 2 are both connected to the rubber frame 8, and then the structural strength of the liquid crystal module 100 is improved, and the backlight assembly 10 is connected to the rubber frame 8 through the film material 9, and then the structure of the liquid crystal module 100 is more stable.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A backlight assembly of a liquid crystal module, the liquid crystal module having a liquid crystal panel and a back plate, the backlight assembly being disposed between the liquid crystal panel and the back plate, the backlight assembly comprising:
the liquid crystal display panel comprises a light guide plate and a reflector plate, wherein the reflector plate is positioned on one side of the light guide plate, which is far away from the liquid crystal panel, the reflector plate is suitable for being arranged on the back plate, and a light leakage gap is arranged between the reflector plate and the light guide plate;
a light source part provided at one side of the light guide plate to emit light toward the light guide plate;
the light absorption reflector is arranged in the light leakage gap and on the light guide plate, the light absorption reflector is close to the light source part, the light absorption reflector is provided with a light absorption surface and a light reflection surface which are oppositely arranged, the light absorption surface faces the reflector plate to absorb the light reflected by the reflector plate in the light leakage gap, and the light reflection surface faces the light guide plate to reflect at least part of the light in the light guide plate.
2. The backlight assembly of claim 1, wherein the light absorbing reflector comprises a substrate and a reflecting portion disposed on the substrate, the reflecting portion defining the light reflecting surface, the light absorbing reflector being attached to the light guide plate via the reflecting portion.
3. The backlight assembly of claim 2, wherein the reflective portion comprises a light transmissive reflective portion, the light transmissive reflective portion comprises a plurality of light transmissive portions and a plurality of light reflective portions, the plurality of light reflective portions are spaced apart from each other, the light transmissive portion is disposed between two adjacent light reflective portions, and light is absorbed by the light absorbing surface through the light transmissive portion.
4. The backlight assembly of claim 3, wherein each of the light-reflecting portions is a raised dot protruding from the substrate.
5. The backlight assembly of claim 3, wherein the light-transmissive and light-reflective portion comprises a reflective powder and a transparent adhesive member, the reflective powder being mixed in the adhesive member to define the light-reflective portion, the transparent adhesive member defining the light-transmissive portion, the adhesive member being adhered to the light guide plate.
6. The backlight assembly of claim 3, wherein the light transmissive and reflective portion further comprises a blank space for increasing the light mixing distance, and the blank space is disposed on a side of the reflective portion facing the light guide plate.
7. The backlight assembly of claim 3, wherein the light absorbing reflector further comprises a reflective connector disposed on the substrate, the reflective connector and the light transmissive and reflective portion being spaced apart from each other, the reflective connector being configured to reflect a portion of the light in the light guide plate and to mount the light absorbing reflector on the light guide plate.
8. The backlight assembly of claim 7, wherein the reflective connector is a double-sided tape.
9. The backlight assembly of any one of claims 2-8, wherein the substrate is provided with a black coating member to define the light absorbing surface.
10. A liquid crystal module, comprising:
a liquid crystal panel and a back plate;
a backlight assembly between the liquid crystal panel and the back plate, the backlight assembly being according to any one of claims 1 to 9.
CN202020331147.XU 2020-03-16 2020-03-16 Backlight assembly of liquid crystal module and liquid crystal module Expired - Fee Related CN211375270U (en)

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CN202020331147.XU CN211375270U (en) 2020-03-16 2020-03-16 Backlight assembly of liquid crystal module and liquid crystal module

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Application Number Priority Date Filing Date Title
CN202020331147.XU CN211375270U (en) 2020-03-16 2020-03-16 Backlight assembly of liquid crystal module and liquid crystal module

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