CN101515087A - Brightness enhancement film and backlight module with brightness enhancement film - Google Patents
Brightness enhancement film and backlight module with brightness enhancement film Download PDFInfo
- Publication number
- CN101515087A CN101515087A CNA2008103003701A CN200810300370A CN101515087A CN 101515087 A CN101515087 A CN 101515087A CN A2008103003701 A CNA2008103003701 A CN A2008103003701A CN 200810300370 A CN200810300370 A CN 200810300370A CN 101515087 A CN101515087 A CN 101515087A
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- substrate
- brightening piece
- module backlight
- light source
- brightness enhancement
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Abstract
The invention discloses a brightness enhancement film, which comprises a substrate, a plurality of protruding structures arranged on the surface of the substrate, and a fluorescent layer arranged on the substrate. The invention also discloses a backlight module comprising the brightness enhancement film. The fluorescent layer can excite UV light emitted by a light guide plate into visible light; and the backlight module uses an ultraviolet source to replace a cold cathode fluorecent lamp of the prior art to reduce the material cost and simplify the manufacturing process.
Description
Technical field
The present invention relates to a kind of brightening piece and have the module backlight of this brightening piece.
Background technology
Present all kinds of LCD adopts the unitized construction of panel and module backlight mostly, and module backlight provides the even brightness area source, and panel is modulated the function that shows to realize to light.The light source of module backlight extensively adopts the cold cathode fluorescent lamp pipe, and the cold cathode fluorescent lamp pipe induces ultraviolet light by the high-voltage power supply that lamp tube ends applies, and the fluorescence coating of described ultraviolet excitation the inner surface of tube sends visible light.Along with improving constantly of technological requirement, Related product needs longer, thinner cold cathode fluorescent lamp pipe, makes the production run complexity that is coated with fluorescence coating at the inner surface of tube increase, and cost increases.
Summary of the invention
In view of this, be necessary the module backlight that a kind of brightening piece is provided and has this brightening piece, to reduce the production cost of module backlight.
The present invention has disclosed a kind of brightening piece, and described brightening piece comprises that a substrate, some raised structures and that is arranged at described upper surface of base plate are arranged on the fluorescence coating on the described substrate.
The present invention has also disclosed a kind of module backlight that comprises described brightening piece, described module backlight comprise stacked setting one on brightening piece, once brightening piece, a diffusion sheet, a light guide plate, a reflector plate, one light source and that is arranged on described light guide plate avris is arranged on the light source reflecting housing in the described light source outside, described brightening piece down comprises a substrate, and a fluorescence coating is set on the described substrate.
The brightening piece lower surface applies fluorescence coating ultraviolet light is converted into visible light under described in the described module backlight, can reduce material cost, simplified manufacturing technique.
Description of drawings
In conjunction with embodiment the present invention is described in further detail with reference to the accompanying drawings:
Fig. 1 is the synoptic diagram of the better embodiment of the present invention's module backlight.
Embodiment
Please refer to Fig. 1, the better embodiment of the present invention's module backlight comprise set gradually from top to bottom one on brightening piece 700, once brightening piece 600, a diffusion sheet 500, a light guide plate 400, a reflector plate 300, the light source 100, that is arranged on described light guide plate 400 avris is arranged on the light source reflecting housing 200 in described light source 100 outsides and the shell 800 of a carrying said modules.
Described light source 100 adopts quartz burner or ultraviolet LED in the present embodiment.Described light source reflecting housing 200 comprises that a substrate 210 and is arranged at the reflection horizon 220 of described substrate 210 outside surfaces.Described reflector plate 300 comprises that a substrate 310 and is arranged at the reflection horizon 320 on the described substrate 310.Described light guide plate 400 comprises a substrate 410 and the some lattice point structures 420 that form through modes such as etching, cutting or net-point printings in described substrate 410 bottom surfaces.Described diffusion sheet 500 comprises that a substrate 510 and is arranged at the diffusion layer 520 on the described substrate 510.The raised structures 620 and one that described down brightening piece 600 comprises a substrate 610, be arranged at described substrate 610 upper surfaces is arranged at the fluorescence coating 630 of described substrate 610 lower surfaces, described substrate 610 adopts polyester material, described fluorescence coating 630 adopts phosphor material powder, described raised structures 620 adopts prism structure, and the thickness of described fluorescence coating 630 can inhomogeneously be provided with.The described brightening piece 700 of going up comprises that a substrate 710 and is arranged at the lustre adding layer 720 on the described substrate 710.
Described light source 100 sends ultraviolet light, part ultraviolet light is directly injected described light guide plate 400 from avris, the ultraviolet light of failing directly to inject is injected described light guide plate 400 after described light source reflecting housing 200, reflector plate 300 reflections, described light guide plate 400 converts the ultraviolet light of injecting to face light, described diffusion sheet 500 is described light of diffusion evenly, described light is injected and is inspired visible light through described fluorescence coating 630 from the described bottom of brightening piece 600 down, described raised structures 620 and the brightness of going up the described visible light of brightening piece 700 increases.
More than be the described application of brightening piece 600 in avris formula module backlight down, it also can be applicable to down straight aphototropism mode set, and ultimate principle is identical, does not repeat them here.
Described fluorescence coating 630 is arranged on the lower surface of described substrate 610, and described fluorescence coating 630 can not only be excited to send visible light, can also substitute the basement membrane in the conventional art, reduces cost.In the another one embodiment, described fluorescence coating 630 also can be arranged on the upper surface of described substrate 610, but also need apply one deck basement membrane on the lower surface of described substrate 610.
Described module backlight need not to use the cold cathode fluorescent lamp pipe by described fluorescence coating 630 is arranged on the described substrate 610, only adopts common ultraviolet source, and manufacturing process is simple, and cost is lower.
Claims (10)
1. a brightening piece comprises a substrate and some raised structures that is arranged at described upper surface of base plate, it is characterized in that: described brightening piece comprises that also one is arranged on the fluorescence coating on the described substrate.
2. brightening piece as claimed in claim 1 is characterized in that: described fluorescence coating is coated in the lower surface or the upper surface of described substrate.
3. brightening piece as claimed in claim 1 is characterized in that: described substrate adopts polyester material.
4. brightening piece as claimed in claim 1 is characterized in that: the raised structures of described upper surface of base plate is a prism structure.
5. module backlight, comprise stacked setting one on brightening piece, once brightening piece, a diffusion sheet, a light guide plate, a reflector plate, one light source and that is arranged on described light guide plate avris is arranged on the light source reflecting housing in the described light source outside, described brightening piece down comprises a substrate, it is characterized in that: a fluorescence coating is set on the described substrate.
6. module backlight as claimed in claim 5 is characterized in that: described substrate adopts polyester material.
7. module backlight as claimed in claim 5 is characterized in that: described fluorescence coating is coated in the lower surface or the upper surface of described substrate.
8. module backlight as claimed in claim 5 is characterized in that: the upper surface of described substrate is provided with prism structure.
9. module backlight as claimed in claim 5 is characterized in that: described light source is a quartz burner.
10. module backlight as claimed in claim 5 is characterized in that: described light source is a ultraviolet LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103003701A CN101515087A (en) | 2008-02-21 | 2008-02-21 | Brightness enhancement film and backlight module with brightness enhancement film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103003701A CN101515087A (en) | 2008-02-21 | 2008-02-21 | Brightness enhancement film and backlight module with brightness enhancement film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101515087A true CN101515087A (en) | 2009-08-26 |
Family
ID=41039608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103003701A Pending CN101515087A (en) | 2008-02-21 | 2008-02-21 | Brightness enhancement film and backlight module with brightness enhancement film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101515087A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943373A (en) * | 2010-08-01 | 2011-01-12 | 苏州达信科技电子有限公司 | Reflecting board and back light module using same |
| CN102466170A (en) * | 2010-11-11 | 2012-05-23 | 展晶科技(深圳)有限公司 | Backlight module |
| CN102829393A (en) * | 2012-08-01 | 2012-12-19 | 深圳市华星光电技术有限公司 | Illuminating component |
| CN104019401A (en) * | 2013-02-28 | 2014-09-03 | 联想(北京)有限公司 | Backlight modules, double-display-screen structure and electronic equipment |
| CN104180289A (en) * | 2014-08-20 | 2014-12-03 | 昆山市诚泰电气股份有限公司 | Flat lamp with functions of illumination and indication after power failure |
| CN104791665A (en) * | 2015-04-23 | 2015-07-22 | 京东方科技集团股份有限公司 | Backlight module, display device and diffusion plate |
| WO2022161311A1 (en) * | 2021-01-28 | 2022-08-04 | 维沃移动通信有限公司 | Electronic device and display apparatus |
-
2008
- 2008-02-21 CN CNA2008103003701A patent/CN101515087A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943373A (en) * | 2010-08-01 | 2011-01-12 | 苏州达信科技电子有限公司 | Reflecting board and back light module using same |
| CN102466170A (en) * | 2010-11-11 | 2012-05-23 | 展晶科技(深圳)有限公司 | Backlight module |
| CN102829393A (en) * | 2012-08-01 | 2012-12-19 | 深圳市华星光电技术有限公司 | Illuminating component |
| CN102829393B (en) * | 2012-08-01 | 2015-04-15 | 深圳市华星光电技术有限公司 | Illuminating component |
| CN104019401A (en) * | 2013-02-28 | 2014-09-03 | 联想(北京)有限公司 | Backlight modules, double-display-screen structure and electronic equipment |
| CN104180289A (en) * | 2014-08-20 | 2014-12-03 | 昆山市诚泰电气股份有限公司 | Flat lamp with functions of illumination and indication after power failure |
| CN104180289B (en) * | 2014-08-20 | 2016-04-20 | 昆山市诚泰电气股份有限公司 | There is the flat lamp of power-off back lighting and deixis |
| CN104791665A (en) * | 2015-04-23 | 2015-07-22 | 京东方科技集团股份有限公司 | Backlight module, display device and diffusion plate |
| CN104791665B (en) * | 2015-04-23 | 2017-05-10 | 京东方科技集团股份有限公司 | Backlight module, display device and diffusion plate |
| WO2022161311A1 (en) * | 2021-01-28 | 2022-08-04 | 维沃移动通信有限公司 | Electronic device and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090826 |