CN104712958A - Backlight module and manufacturing method thereof - Google Patents
Backlight module and manufacturing method thereof Download PDFInfo
- Publication number
- CN104712958A CN104712958A CN201310684913.5A CN201310684913A CN104712958A CN 104712958 A CN104712958 A CN 104712958A CN 201310684913 A CN201310684913 A CN 201310684913A CN 104712958 A CN104712958 A CN 104712958A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- guide plate
- light guide
- lattice point
- point structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
A backlight module comprises a light guide plate, a lattice point structure, a plurality of light-emitting diodes, a reflecting sheet, a diffusion layer and a prism film, wherein the lattice point structure is attached to the bottom of the light guide plate, the light-emitting diodes and the reflecting sheet are attached to the bottom of the lattice point structure, the diffusion layer is attached to the top of the light guide plate, and the prism film is attached to the top of the diffusion layer. According to the backlight module, the reflecting sheet, the light-emitting diodes, the lattice point structure, the light guide plate, the diffusion layer, the prism film and the like are closely attached together, and therefore the backlight module is lighter and thinner, and assembly man hours and assembly materials are saved. The invention further relates to a manufacturing method of the backlight module.
Description
Technical field
The present invention relates to backlight module, particularly relate to the backlight module and manufacture method thereof that use LED source.
Background technology
That commonly uses on the market at present should comprise the elements such as light guide plate, light-emitting diode light bar, reflector plate, diffusion layer and prismatic lens in the backlight module of liquid crystal display and notebook computer.But each element takies more space in this backlight module, size is comparatively large on the whole to make this backlight module, does not meet consumer to the lightening requirement of product.
Summary of the invention
Given this, the present invention aims to provide less, the more frivolous backlight module of a kind of size and manufacture method thereof.
A kind of backlight module, comprise a light guide plate, a lattice point structure, multiple light emitting diode, a reflector plate, a diffusion layer and a prism film, this lattice point structure fits in bottom this light guide plate, described light emitting diode and reflector plate are fitted in bottom this lattice point structure, this diffusion layer is fitted in this light guide plate top, and this prism film is fitted in this diffusion layer top.
A manufacture method for backlight module, comprises the following steps:
One light guide plate is provided;
A lattice point structure is formed in the bottom of light guide plate by wire mark or imprinting process;
Light emitting diode is directly fitted in bottom this lattice point structure;
Bottom lattice point structure, a reflector plate is formed by the mode of reflecting material on spraying, vacuum coating or wire mark;
On light guide plate top coating, spraying or wire mark, diffusion particle is to form diffusion layer;
A prism film is formed at diffusion layer top by volume to volume or imprinting process.
Multiple member in tight such as reflector plate, light emitting diode, lattice point structure, light guide plate, diffusion layer, prism film fit together by backlight module of the present invention, and backlight module has more lightening, and save assembling man-hour and assembled material.
Accompanying drawing explanation
The generalized section of the manufacture method of the backlight module that Fig. 1 to Fig. 5 provides for one embodiment of the invention.
The light path schematic diagram that Fig. 6 is formed when being the lumination of light emitting diode of backlight module of the present invention.
Main element symbol description
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Please first consult Fig. 5, be depicted as the structural representation of the backlight module 100 of an embodiment provided by the present invention.This backlight module 100 can be applicable in liquid crystal display, and it comprises light guide plate 10, lattice point structure 20, multiple light emitting diode 30, reflector plate 40, diffusion layer 50 and a prism film 60.This lattice point structure 20 fits in bottom this light guide plate 10.Described light emitting diode 30 and reflector plate 40 are fitted in bottom this lattice point structure 20.This diffusion layer 50 is fitted in this light guide plate 10 top.This prism film 60 is fitted in this diffusion layer 50 top.
Please refer to Fig. 1 to Fig. 5, the manufacture method of above-mentioned backlight module 100, comprises the following steps:
Step one, provides a light guide plate 10.
In the present embodiment, the material of this light guide plate 10 is the glass material that good, the surperficial anti-scratch intensity of heat resistance is high.This light guide plate 10 utilizes the method for ejection formation glass material compacting to be formed.The thickness of this light guide plate 10 is 0.1 ~ 0.2 millimeter (mm).The surperficial unusual light of light guide plate 10 is smooth, so that the total reflection that most of internal light can be regular on its flat surface, and it is outside to inject to light guide plate 10.
Step 2, the bottom wire mark of light guide plate 10 or imprinting process stamp there is highly reflective and not the optical grade acryl material of extinction to form a lattice point structure 20.
In the present embodiment, this lattice point structure 20 comprises multiple site, and each site has the sphere that diameter is 30 ~ 50 microns (um), the degree of depth is 3 ~ 5 microns (um), for the light that Refl-Luminous diode 30 sends.
Step 3, is directly fitted in light emitting diode 30 and conducting wire thereof bottom this lattice point structure 20.
In the present embodiment, the plurality of light emitting diode 30 is arrayed bottom this lattice point structure 20.The conducting wire be connected with light emitting diode 30 can print with dargyrome or the mode of electro-coppering is formed directly into bottom lattice point structure 20.Its conducting wire of light emitting diode 30 directly fits in bottom lattice point structure 20, thus eliminates printed circuit board (PCB) (PCB) and save space.
Step 4, forms a reflector plate 40 by the mode of reflecting material on spraying, vacuum coating or wire mark bottom lattice point structure 20.
In the present embodiment, this reflector plate 40 is offered multiple in arrayed, with the through hole passed for light emitting diode 30 (non-label).The effect of this reflecting plate is the light exposed bottom lattice point structure 20 to be reflected back in light guide plate 10, makes light from the outgoing of backlight module 100 forward, to improve the service efficiency of light.
Step 5, on light guide plate 10 top coating, spraying or wire mark, diffusion particle is to form diffusion layer 50.
In the present embodiment, the material of diffusion particle is silica or alumina powder.The effect of diffusion layer 50 is to make the distribution of the light from the outgoing of backlight module 100 forward more even.
Step 6, adopts optical grade acryl material to form a prism film 60 with volume to volume (roll to roll) or imprinting process at diffusion layer 50 top.
In the present embodiment, described prism film 60 is plastic sheetings of layer of transparent, and thickness is 50 ~ 300 microns, evenly and is fitly covered with one deck prism structure at the upper surface of film.The base angle of prism is 45 degree, is highly 50 microns (um).After the injection of light self-diffusion layer 50, the non-constant of directive property of its light, so utilize prism film 60 to revise the direction of light, reaches the effect of optically focused, improves the brightness from backlight module 100 forward emergent light.
Please refer to Fig. 6, when light emitting diode 30 electrified light emitting produces light, the light that a part of rising angle is less directly penetrates from backlight module 100 forward through lattice point structure 20, light guide plate 10, diffusion layer 50, prism film 60.It is inner that another part light that light emitting diode 30 sends utilizes reflection to import light guide plate 10, can be reflected when light is mapped to lattice point structure 20, and reverberation toward all angles diffusion, then can will destroy total reflection condition and be penetrated by light guide plate 10 top; Wherein, after the light that part rising angle is larger passes lattice point structure 20 and light guide plate 10, the intersection of light guide plate 10 and lattice point structure 20 is reflected at light guide plate 10 and the intersection of diffusion layer 50, then being reflexed to diffusion layer 50 by lattice point structure 20, penetrating from backlight module 100 forward after reflecting when entering diffusion layer 50, prism film 60; After the light that another part rising angle is larger passes lattice point structure 20 and light guide plate 10, reflector plate 40 is reflected at light guide plate 10 and the intersection of diffusion layer 50, then reflexed to reflector plate 40 and the intersection of lattice point structure 20 by reflector plate 40, penetrate from backlight module 100 forward after reflecting when then being entered lattice point structure 20, light guide plate 10, diffusion layer 50, prism film 60 successively by the light reflected.
Multiple member in tight such as reflector plate 40, light emitting diode 30, lattice point structure 20, light guide plate 10, diffusion layer 50, prism film 60 fit together by backlight module 100 of the present invention, the thickness of backlight module 100 is less than 0.85mm, backlight module 100 has more lightening, and saves assembling man-hour and assembled material.
Technology contents of the present invention and technical characterstic disclose as above, but those skilled in the art still may make all replacement and the modification that do not deviate from spirit of the present invention based on teaching of the present invention and announcement.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modification, and is contained by appended claim.
Claims (9)
1. a backlight module, comprise light guide plate, light emitting diode, reflector plate, diffusion layer and prism film, it is characterized in that: described backlight module also comprises lattice point structure, this lattice point structure fits in bottom this light guide plate, described light emitting diode and reflector plate are fitted in bottom this lattice point structure, this diffusion layer is fitted in this light guide plate top, and this prism film is fitted in this diffusion layer top.
2. backlight module as claimed in claim 1, is characterized in that: the thickness of this light guide plate is 0.1 ~ 0.2 millimeter.
3. backlight module as claimed in claim 1, it is characterized in that: this lattice point structure comprises multiple site, each site has the sphere that diameter is 30 ~ 50 microns, the degree of depth is 3 ~ 5 microns.
4. a manufacture method for backlight module, comprises the following steps:
One light guide plate is provided;
A lattice point structure is formed in the bottom of light guide plate by wire mark or imprinting process;
Light emitting diode is directly fitted in bottom this lattice point structure;
Bottom lattice point structure, a reflector plate is formed by the mode of reflecting material on spraying, vacuum coating or wire mark;
On light guide plate top coating, spraying or wire mark, diffusion particle is to form diffusion layer;
A prism film is formed at diffusion layer top by volume to volume or imprinting process.
5. the manufacture method of backlight module as claimed in claim 4, is characterized in that: described lattice point structure is the optical grade acryl material of not extinction.
6. the manufacture method of backlight module as claimed in claim 4, is characterized in that: described prism film adopts optical grade acryl material.
7. the manufacture method of backlight module as claimed in claim 4, is characterized in that: the material of this light guide plate is glass material, and this light guide plate utilizes the method for ejection formation glass material compacting to be formed.
8. the manufacture method of backlight module as claimed in claim 4, is characterized in that: also comprise the step directly forming the conducting wire be connected with light emitting diode by the mode of dargyrome print or electro-coppering bottom lattice point structure.
9. the manufacture method of backlight module as claimed in claim 4, it is characterized in that: described prism film is the plastic sheeting of layer of transparent, thickness is 50 ~ 300 microns, evenly and is fitly covered with one deck prism structure at the upper surface of film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684913.5A CN104712958A (en) | 2013-12-16 | 2013-12-16 | Backlight module and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684913.5A CN104712958A (en) | 2013-12-16 | 2013-12-16 | Backlight module and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712958A true CN104712958A (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684913.5A Pending CN104712958A (en) | 2013-12-16 | 2013-12-16 | Backlight module and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN104712958A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015305A (en) * | 2017-04-28 | 2017-08-04 | 苏州艾立昇科技有限公司 | Plate lighting ultra-thin light guide board |
| WO2018133436A1 (en) * | 2017-01-17 | 2018-07-26 | 京东方科技集团股份有限公司 | Backlight module and display panel comprising backlight module, and electronic device |
| CN109270624A (en) * | 2018-11-23 | 2019-01-25 | 北京京东方茶谷电子有限公司 | Light guide plate and preparation method thereof, backlight module and display panel |
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
| CN113534536A (en) * | 2021-07-14 | 2021-10-22 | 武汉华星光电半导体显示技术有限公司 | Backlight module, preparation method thereof and display device |
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| CN201247363Y (en) * | 2008-08-22 | 2009-05-27 | 北京京东方光电科技有限公司 | Backlight module unit |
| CN201297579Y (en) * | 2008-06-11 | 2009-08-26 | 深圳市百得力电子有限公司 | Light guide plate mechanism for improving the panel brightness |
| CN102323688A (en) * | 2006-03-21 | 2012-01-18 | 株式会社半导体能源研究所 | Backlight apparatus and display device |
| CN203217112U (en) * | 2013-04-15 | 2013-09-25 | 深圳市宝得利光电科技有限公司 | Inclined light guide plate |
| CN203215568U (en) * | 2013-04-15 | 2013-09-25 | 深圳市宝得利光电科技有限公司 | Side-light-type light guide plate used for backlight module |
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2013
- 2013-12-16 CN CN201310684913.5A patent/CN104712958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102323688A (en) * | 2006-03-21 | 2012-01-18 | 株式会社半导体能源研究所 | Backlight apparatus and display device |
| CN201297579Y (en) * | 2008-06-11 | 2009-08-26 | 深圳市百得力电子有限公司 | Light guide plate mechanism for improving the panel brightness |
| CN201247363Y (en) * | 2008-08-22 | 2009-05-27 | 北京京东方光电科技有限公司 | Backlight module unit |
| CN203217112U (en) * | 2013-04-15 | 2013-09-25 | 深圳市宝得利光电科技有限公司 | Inclined light guide plate |
| CN203215568U (en) * | 2013-04-15 | 2013-09-25 | 深圳市宝得利光电科技有限公司 | Side-light-type light guide plate used for backlight module |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133436A1 (en) * | 2017-01-17 | 2018-07-26 | 京东方科技集团股份有限公司 | Backlight module and display panel comprising backlight module, and electronic device |
| US10788618B2 (en) | 2017-01-17 | 2020-09-29 | Boe Technology Group Co., Ltd. | Backlight module as well as display panel and electronic device comprising the same |
| CN107015305A (en) * | 2017-04-28 | 2017-08-04 | 苏州艾立昇科技有限公司 | Plate lighting ultra-thin light guide board |
| CN109270624A (en) * | 2018-11-23 | 2019-01-25 | 北京京东方茶谷电子有限公司 | Light guide plate and preparation method thereof, backlight module and display panel |
| US10782465B2 (en) | 2018-11-23 | 2020-09-22 | Beijing Boe Chatani Electronics Co., Ltd. | Light guide plate with array of structures on both major surfaces |
| CN113138496A (en) * | 2021-04-16 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Backlight module and display device |
| CN113534536A (en) * | 2021-07-14 | 2021-10-22 | 武汉华星光电半导体显示技术有限公司 | Backlight module, preparation method thereof and display device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
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| WD01 | Invention patent application deemed withdrawn after publication |