CN210109528U - Side-in type ultrathin backlight module - Google Patents
Side-in type ultrathin backlight module Download PDFInfo
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- CN210109528U CN210109528U CN201921232287.5U CN201921232287U CN210109528U CN 210109528 U CN210109528 U CN 210109528U CN 201921232287 U CN201921232287 U CN 201921232287U CN 210109528 U CN210109528 U CN 210109528U
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- light guide
- guide plate
- wedge
- metal frame
- backlight module
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Abstract
The utility model provides a side income formula ultra-thin backlight unit, includes that from the bottom up folds metal frame, FPC, reflectance coating, light guide plate, diffusion barrier and the membrane of adding lustre to that establishes in proper order to and be located light guide plate one side LED light source, its characterized in that, the light guide plate bottom surface adopts the wedge structure, including flat plate portion and wedge portion, wedge portion bottom surface with flat plate portion bottom surface non-coplanar, the reflectance coating with second double faced adhesive tape between the metal frame adopts the cascade structure, the utility model discloses a FPC circuit board is located the light guide plate below, and the light guide plate adopts the wedge structure, and double faced adhesive tape between FPC and the light guide plate, the production of light source end bright band is avoided in the frivolousization of realizing backlight unit to double faced adhesive tape between reflectance coating and the metal frame as an organic whole structure.
Description
Technical Field
The utility model relates to a display screen technical field, concretely relates to side income formula ultra-thin backlight unit.
Background
The backlight module is one of the key components of the liquid crystal display panel, and has the function of supplying sufficient light source with uniform brightness and distribution, so that the liquid crystal display can normally display images. The backlight module can be divided into a side-in type, a direct type and a hollow type light source structure, and the direct type backlight module is gradually eliminated because the direct type backlight module needs more LED light sources and increases the manufacturing cost; at present, the most common structure is a side-in type backlight module, which is a light guide point emitted to a light guide plate by an LED point light source, and the light guide point diffuses incident light to convert the point light source into a surface light source. Referring to fig. 1, with the development of science and technology, more and more electronic products tend to be thinner and lighter at the present stage, so the internal structure of the electronic products at the present stage must be improved, and the backlight module used at the present stage is thicker, and a certain position needs to be left for the thickness of the backlight module when the housing is designed, so other hardware structures must be improved, which brings great trouble to research and development design.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a side-in type ultrathin backlight module.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides an ultra-thin backlight unit of formula is gone into to side, includes from the bottom up and stacks metal frame, FPC, reflectance coating, light guide plate, diffusion barrier and the membrane that adds lustre to in proper order to and be located light guide plate one side LED light source, its characterized in that, the light guide plate bottom surface adopts wedge body structure, including flat plate portion and wedge portion, wedge portion bottom surface with flat plate portion bottom surface is not located the coplanar, FPC with paste through first two-sided adhesive between the light guide plate, the reflectance coating with paste through the two-sided adhesive of second between the metal frame. The FPC and the third double faced adhesive tape between the metal frames adopt an integrated structure and extend to be adhered to the lower part of the reflecting film.
Specifically, the second double-sided adhesive is adhered in a laminating manner.
Specifically, the height difference between the bottom surface of the wedge-shaped part and the bottom surface of the LED is not more than 0.02 mm.
Specifically, the thickness of the wedge-shaped portion is larger than that of the flat plate portion.
Specifically, the thickness difference between the wedge-shaped part and the flat plate part is within the range of 0.05 mm-0.10 mm.
Specifically, black shading ink is printed between the diffusion film and the metal frame.
The utility model discloses the beneficial effect who brings:
first, the utility model discloses a backlight unit, reflector plate, light guide plate, diffusion barrier, membrane of adding lustre to, LED all fix through the mode of double faced adhesive tape, double faced adhesive tape between FPC and the light guide plate, reflectance coating and the metal frame formula structure as an organic whole, and is effectual fixed with backlight unit, also can the shading simultaneously, avoids light to spill from the side of glass light guide plate.
Secondly, because the thickness of the LED is limited, the thickness of the light guide plate at the end contacted with the LED is equal to that of the LED, and the light guide plate adopts an integrated injection molding wedge-shaped structure, so that the thickness of the flat plate part of the light guide plate can be thinner, the thickness of the backlight module is further reduced, and the thinning development of electronic products is facilitated.
Drawings
Fig. 1 is a schematic view of a backlight structure provided by the present invention.
Fig. 2 is a longitudinal sectional view of the light guide plate in the backlight structure of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 and intended to be used for explaining the present application and should not be construed as limiting the present application.
As shown in fig. 1 and fig. 2, an ultra-thin backlight unit of formula is gone into to side, include the metal frame that from the bottom up superposes in proper order and establish, FPC10, reflectance coating 20, light guide plate 30, diffusion barrier and membrane that adds lustre to, and be located light guide plate one side LED light source, the light guide plate bottom surface adopts the wedge body structure, including dull and stereotyped portion and wedge portion, wedge portion bottom surface and dull and stereotyped portion bottom surface are not located the coplanar, paste through first double faced adhesive tape 11 between FPC10 and the light guide plate 30, paste through second double faced adhesive tape 21 between reflectance coating 20 and the metal frame, third double faced adhesive tape 12 between FPC10 and the metal frame adopts the integral type structure, extend and paste to reflectance coating 20 below.
Preferably, the second double-sided adhesive 21 is attached in a lamination manner.
Preferably, the height difference between the bottom surface of the wedge 31 and the bottom surface of the LED is not more than 0.02 mm.
Preferably, the wedge portion 31 is thicker than the flat plate portion 32.
Preferably, the difference between the thickness of the wedge portion 31 and the thickness of the flat plate portion 32 is in the range of 0.05mm to 0.10 mm.
Preferably, the diffusion film is printed with black light-shielding ink between the diffusion film and the metal frame.
It is understood that the number of the laminated films of the second double-sided adhesive 21 is not limited to two, and may be less or more, and in addition, the specific thickness of the second double-sided adhesive 21 may be set according to the actual product requirement.
It can be understood that, in the prior art, the backlight structure forms an accommodating space between the wedge-shaped portion 31 and the metal frame through the light guide plate wedge-shaped structure, and the FPC10 and the reflective film 20 are adhered to the metal frame through the double-sided adhesive tape, thereby achieving the effect of reducing the overall thickness of the backlight.
It can be understood that, in the prior art, the backlight structure is fixed by attaching the double-sided adhesive tape and the light source is added to realize a narrow frame structure, so that the poor displacement of the FPC10 and the LED light source is easy to occur after the backlight source is dropped and impacted, and the bright band phenomenon is easy to occur at the front end of the light source. The double faced adhesive tape that combines FPC10 and metal frame directness and reflection and the double faced adhesive tape between the metal frame in this scheme are as an organic whole, adopt whole middle not disconnected structure, increase reflective membrane 20, FPC10 and metal frame's binding area and laminating intensity to avoid appearing the structural separation.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a side income formula ultra-thin backlight unit, includes that from the bottom up folds metal frame, FPC, reflectance coating, light guide plate, diffusion barrier and the membrane that adds lustre to of establishing in proper order to and be located light guide plate one side LED light source, a serial communication port, the light guide plate bottom surface adopts the wedge structure, including flat board portion and wedge portion, wedge portion bottom surface with flat board portion bottom surface non-coplanar, FPC with paste through first double faced adhesive between the light guide plate, the reflectance coating with paste through the second double faced adhesive between the metal frame, FPC with third double faced adhesive between the metal frame adopts the integral type structure, extend paste extremely the reflectance coating below.
2. The lateral ultrathin backlight module of claim 1, wherein the second double-sided adhesive is adhered in a laminating manner.
3. The edge-type ultra-thin backlight module as claimed in claim 1, wherein the height difference between the bottom surface of the wedge and the bottom surface of the LED is not more than 0.02 mm.
4. The edge-lit ultrathin backlight module of claim 1, wherein the thickness of the wedge-shaped portion is greater than the thickness of the flat plate portion.
5. The edge-type ultra-thin backlight module as claimed in claim 1, wherein the thickness difference between the wedge-shaped portion and the flat plate portion is in the range of 0.05mm to 0.10 mm.
6. The edge-type ultra-thin backlight module as claimed in claim 1, wherein black opaque ink is printed between the diffusion film and the metal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232287.5U CN210109528U (en) | 2019-08-01 | 2019-08-01 | Side-in type ultrathin backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232287.5U CN210109528U (en) | 2019-08-01 | 2019-08-01 | Side-in type ultrathin backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210109528U true CN210109528U (en) | 2020-02-21 |
Family
ID=69567427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921232287.5U Active CN210109528U (en) | 2019-08-01 | 2019-08-01 | Side-in type ultrathin backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210109528U (en) |
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2019
- 2019-08-01 CN CN201921232287.5U patent/CN210109528U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200519 Address after: 243000 five Jinshan Road 1188, Ma'anshan economic and Technological Development Zone, Anhui province 207 Patentee after: MAANSHAN DACANG PRECISION TECHNOLOGY Co.,Ltd. Address before: 518000. E building, Shiyan Industrial Street, Fukang mountain area, Shiyan City, Shenzhen, Guangdong, Baoan District Patentee before: SHENZHEN TECHASER TECHNOLOGIES Co.,Ltd. |
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| TR01 | Transfer of patent right |