CN203298076U - Ultra-thin-type backlight module - Google Patents
Ultra-thin-type backlight module Download PDFInfo
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- CN203298076U CN203298076U CN2013202639877U CN201320263987U CN203298076U CN 203298076 U CN203298076 U CN 203298076U CN 2013202639877 U CN2013202639877 U CN 2013202639877U CN 201320263987 U CN201320263987 U CN 201320263987U CN 203298076 U CN203298076 U CN 203298076U
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- diffusion film
- brightening
- backlight module
- brightening diffusion
- light
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Abstract
The utility model relates to the field of liquid crystal display, in particular to a backlight module. The ultra-thin-type backlight module comprises a light guide plate, a reflective sheet, a first brightening diffusion film and a second brightening diffusion film. The first brightening diffusion film and the second brightening diffusion film are arranged on the front face of the light guide plate in an overlapping mode in the moving direction of a light path, and the reflective sheet is arranged on the back face of the light guide plate. Micro air holes are formed both inside the first brightening diffusion film and the second brightening diffusion film, micro triangular prisms are densely arranged on the light-emitting face of the first brightening diffusion film, and micro lens structures are evenly distributed on the light-emitting face of the second brightening diffusion film. According to the ultra-thin-type backlight module, the micro air holes which are evenly distributed are arranged on the basis of the brightening films, and the micro lens structures are arranged on the light-emitting faces of the brightening films, so that the brightening films also have the diffusion function; an existing diffusion film is eliminated, so that the thickness of the backlight module is greatly reduced, and the light and thin design in the current liquid crystal field is facilitated.
Description
Technical field
The utility model relates to field of liquid crystal display, relates in particular to a kind of backlight module.
Background technology
LCDs is passive light-emitting display device, need to provide backlight to work.At present, most of LCDs employing side entering types or straight-down negative LED lamp pearl are luminous.As shown in Figure 1, existing side entrance back module comprises LGP 1, the front of LGP 1 is moved towards stacked above one another according to light and is provided with lower diffusion barrier 2, lower brightening piece 3, upper brightening piece 4 and upper diffusion barrier 5, the back side of LGP 1 also is provided with reflector plate 6, light source is arranged on the side of LGP 1, the light that light source emits is converted to area source by LGP 1 with line source, has reached the requirement of brightness and the uniformity; , in order to ensure the brightness in the certain viewing angles scope, have at least in lower brightening piece 3 and upper brightening piece 4 on the exiting surface of a slice to be provided with compact arranged little triangular prism shaped structure and to make the light that sends produce congregational rate.This class backlight module has 6 layers of optical thin film altogether on thickness direction now, wherein diffusion barrier is in order to spread illuminating source, improve the uniformity and chroma stability, also the astigmatic optics stratum granulosum need to be set on surface, so cause the thickness of backlight module to be difficult to reduce, be unfavorable for lightening design now.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of ultrathin backlight module, by uniform little pore is set on the basis of brightness enhancement film, make brightness enhancement film can have simultaneously the function of diffusion, cancelled existing diffusion barrier, greatly reduce the thickness of backlight module, be conducive to the lightening design of present liquid crystal industry.
The utility model is achieved in that a kind of ultrathin backlight module, comprise LGP, reflector plate, the first brightening diffusion film and the second brightening diffusion film, stacked the first brightening diffusion film and the second brightening diffusion film of arranging moved towards according to light path in the front of described LGP, and described reflector plate is arranged on the back side of LGP; All be evenly equipped with little pore in described the first brightening diffusion film and the second brightening diffusion film, the exiting surface of the first brightening diffusion film tightens solid matter and shows little triangular prism, is evenly equipped with microlens structure on the exiting surface of the second brightening diffusion film.
The aperture of described little pore is 0.01 ~ 5 μ m, and the spacing between adjacent two little pores is 1 ~ 20 μ m.
The cross section of described little triangular prism is isosceles triangle, and the base of isosceles triangle is connected with the exiting surface of the first brightening diffusion film, and adjacent two little triangular prisms are close to and are arranged side by side.
Described microlens structure comprises base and spherical top, and described base is cylinder, and the base bottom is fixed on the exiting surface of the second brightening diffusion film, and described spherical top is fixed on the top of base.
The sphere smooth transition of the outer surface of described base and spherical top.
The height of described microlens structure is 5 ~ 30 μ m, and the centre-to-centre spacing of described adjacent two microlens structures is 10 μ m ~ 100 μ m.
The ultrathin backlight module of the utility model is by arranging uniform little pore on the basis of brightness enhancement film, and be provided with microlens structure on the brightness enhancement film of bright dipping, make brightness enhancement film can have simultaneously the function of diffusion, cancelled existing diffusion barrier, greatly reduce the thickness of backlight module, be conducive to the lightening design of present liquid crystal industry.
Description of drawings
Fig. 1 is existing back light module unit structure schematic diagram;
Fig. 2 is the structural representation of the ultrathin backlight module of the utility model;
Fig. 3 is the structural representation of microlens structure.
In figure: diffusion barrier, 6 reflector plates, 7 first brightening diffusion films, 8 second brightening diffusion films, 9 little pores, 10 little triangular prisms, 11 microlens structures, 12 bases, 13 spherical tops on brightening piece, 5 on 1 LGP, 2 times diffusion barriers, 3 times brightening pieces, 5.
The specific embodiment
, below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims limited range equally.
As described in Figure 2, a kind of ultrathin backlight module, comprise LGP 1, reflector plate 6, the first brightening diffusion film 7 and the second brightening diffusion film 8, stacked the first brightening diffusion film 7 and the second brightening diffusion film 8 of arranging moved towards according to light path in the front of described LGP 1, and described reflector plate 6 is arranged on the back side of LGP 1; The exiting surface that all is evenly equipped with little pore 9, the first brightening diffusion films 3 in described the first brightening diffusion film 7 and the second brightening diffusion film 8 tightens solid matter and shows on the exiting surface of little triangular prism 10, the second brightening diffusion films 8 and be evenly equipped with microlens structure 11.
In the utility model, the aperture of described little pore 9 is 0.01 ~ 5 μ m, and the spacing between adjacent two little pores 9 is 1 ~ 20 μ m; The too little words difficulty of processing in little pore 4 apertures is very large, can cause product cost very high, and aperture is too large, density is inadequate, can't realize smoothly again the function of diffusion barrier, as preferably, in the present embodiment, the aperture of little pore 4 is 1 μ m, and the spacing between adjacent two little pore 4 centre ofs sphere is 5 μ m.
In the present embodiment, the cross section of described little triangular prism 10 is isosceles triangle, and the base of isosceles triangle is connected with the exiting surface of the first brightening diffusion film 7, and adjacent two little triangular prisms 10 are close to and are arranged side by side.
As shown in Figure 3, the utility model can further describe into, described microlens structure 11 comprises base 12 and spherical top 13, described base 12 is cylinder, base 12 bottoms are fixed on the exiting surface of the second brightening diffusion film 8, and described spherical top 13 is fixed on the top of base 12.Light transmission and optics diffusion effect in order to ensure film, the sphere smooth transition of the outer surface of described base 12 and spherical top 13, the height of described microlens structure 11 is 5 ~ 30 μ m, and the centre-to-centre spacing of described adjacent two microlens structures 11 is 10 μ m ~ 100 μ m.
Claims (6)
1. ultrathin backlight module, it is characterized in that: comprise LGP (1), reflector plate (6), the first brightening diffusion film (7) and the second brightening diffusion film (8), stacked the first brightening diffusion film (7) and the second brightening diffusion film (8) of arranging moved towards according to light path in the front of described LGP (1), and described reflector plate (6) is arranged on the back side of LGP (1); All be evenly equipped with little pore (9) in described the first brightening diffusion film (7) and the second brightening diffusion film (8), the exiting surface of the first brightening diffusion film (3) tightens solid matter and shows little triangular prism (10), is evenly equipped with microlens structure (11) on the exiting surface of the second brightening diffusion film (8).
2. ultrathin backlight module as claimed in claim 1, it is characterized in that: the aperture of described little pore (9) is 0.01 ~ 5 μ m, the spacing between adjacent two little pores (9) is 1 ~ 20 μ m.
3. ultrathin backlight module as claimed in claim 1 or 2, it is characterized in that: the cross section of described little triangular prism (10) is isosceles triangle, the base of isosceles triangle is connected with the exiting surface of the first brightening diffusion film (7), and adjacent two little triangular prisms (10) are close to and are arranged side by side.
4. ultrathin backlight module as claimed in claim 1 or 2, it is characterized in that: described microlens structure (11) comprises base (12) and spherical top (13), described base (12) is cylinder, base (12) bottom is fixed on the exiting surface of the second brightening diffusion film (8), and described spherical top (13) is fixed on the top of base (12).
5. ultrathin backlight module as claimed in claim 4, is characterized in that: the sphere smooth transition of the outer surface of described base (12) and spherical top (13).
6. ultrathin backlight module as claimed in claim 4, it is characterized in that: the height of described microlens structure (11) is 5 ~ 30 μ m, the centre-to-centre spacing of described adjacent two microlens structures (11) is 10 μ m ~ 100 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202639877U CN203298076U (en) | 2013-05-15 | 2013-05-15 | Ultra-thin-type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202639877U CN203298076U (en) | 2013-05-15 | 2013-05-15 | Ultra-thin-type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298076U true CN203298076U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202639877U Expired - Fee Related CN203298076U (en) | 2013-05-15 | 2013-05-15 | Ultra-thin-type backlight module |
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| CN (1) | CN203298076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911764A (en) * | 2016-06-15 | 2016-08-31 | 苏州众显电子科技有限公司 | Backlight reflector plate used for liquid crystal |
| CN113253371A (en) * | 2021-04-25 | 2021-08-13 | 惠州视维新技术有限公司 | Brightness enhancement film |
-
2013
- 2013-05-15 CN CN2013202639877U patent/CN203298076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911764A (en) * | 2016-06-15 | 2016-08-31 | 苏州众显电子科技有限公司 | Backlight reflector plate used for liquid crystal |
| CN113253371A (en) * | 2021-04-25 | 2021-08-13 | 惠州视维新技术有限公司 | Brightness enhancement film |
| WO2022227706A1 (en) * | 2021-04-25 | 2022-11-03 | 惠州视维新技术有限公司 | Brightness enhancement film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 |