CN1892342A - Back-light module group - Google Patents
Back-light module group Download PDFInfo
- Publication number
- CN1892342A CN1892342A CN 200510035924 CN200510035924A CN1892342A CN 1892342 A CN1892342 A CN 1892342A CN 200510035924 CN200510035924 CN 200510035924 CN 200510035924 A CN200510035924 A CN 200510035924A CN 1892342 A CN1892342 A CN 1892342A
- Authority
- CN
- China
- Prior art keywords
- module backlight
- light source
- reflecting plate
- reflection
- reflecting
- 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.)
- Pending
Links
Images
Abstract
The present invention relates to a backlight module, which contains at least one light source, one diffuser plate and one reflecting plate, wherein said light source located between reflecting plate and diffuser plate, and one surface toward light source of reflecting plate set with plurality of reflection projections.
Description
Technical field]
The invention relates to a kind of module backlight, particularly a kind of down straight aphototropism mode set.
[background technology]
Because the liquid crystal itself in the panel of LCD is not luminous, thereby, for reaching display effect, a planar light source device is provided must for the LCD panel, as module backlight, to realize Presentation Function.Module backlight is divided into two kinds of side-light type module backlight and down straight aphototropism mode set by structure.
Continuous expansion along with the liquid crystal display applications field, the particularly application of large scale liquid crystal display, as notebook computer and LCD TV etc., emitting brightness to the backlight liquid crystal display module requires further to improve, need to use a plurality of light sources to improve the emitting brightness of entire aphototropism mould, traditional side-light type module backlight can not satisfy the requirement of its emitting brightness, so down straight aphototropism mode set becomes the main flow of large scale liquid crystal display.
A kind of down straight aphototropism mode set of prior art as shown in Figure 1, this module 1 backlight comprises a diffuser plate 11, light source 12 and a reflecting plate 13, this light source 12 is arranged between diffuser plate 11 and the reflecting plate 13.This reflecting plate 13 is tabulars, the light reflection that this reflecting plate 13 sends light source 12, and this reflection ray is transferred to the LCD that is provided with towards module 1 backlight via diffuser plate 11, makes LCD obtain preferable brightness.
Seeing also Fig. 2, is that the light that light source 12 sends reflects the partial schematic diagram that is transferred to diffuser plate 11 through reflecting plate 13.Light source 12 area just above arrive this diffuser plate 11 because of the light direct projection, make diffuser plate 11 positions of locating directly over the light source 12 the brightest, and the darkest near the middle place 14 of two adjacent light sources 12.Its reason be two adjacent light sources 12 in the middle of the place 14 farthest apart from light source 12, the light intensity that can receive light source 12 just can be a little less than, and the only simple cremasteric reflex function of flat reflecting plate 13, thus cause the homogeneity of emergent ray relatively poor.
[summary of the invention]
For overcoming the not high enough problem of module outgoing light homogeneity backlight of prior art, be necessary the module backlight that provides a kind of outgoing light homogeneity higher.
The disclosed technical scheme that solves this technical problem of one better embodiment is: a kind of module backlight is provided, this module backlight comprises at least one light source, a diffuser plate and a reflecting plate, this light source is between reflecting plate and diffuser plate, wherein, this reflecting plate simultaneously is provided with a plurality of reflection projections towards light source.
Compared to prior art, because the reflecting plate of the present invention's module backlight is provided with a plurality of reflection projections, each light source sends the light of different crevice projection angles downwards, its part light is via the optically focused effect that reflecting curved surface provided of this reflection projection, reflex on the diffuser plate of two adjacent light source zone line correspondences, thereby make diffuser plate obtain more effect of uniform of briliancy, and then improve the outgoing light homogeneity of module backlight.
[description of drawings]
Fig. 1 is the diagrammatic cross-section of prior art module backlight.
To be prior art module backlight reflex to partial schematic diagram on the diffuser plate with light to Fig. 2
Fig. 3 is the diagrammatic cross-section of the present invention's module backlight.
Fig. 4 is the stereographic map of reflecting plate among Fig. 3.
To be the present invention's module backlight reflex to partial schematic diagram on the diffuser plate with light to Fig. 5.
[embodiment]
See also Fig. 3 and Fig. 4, Fig. 3 is the diagrammatic cross-section of the present invention's module backlight, and Fig. 4 is the stereographic map of reflecting plate among Fig. 3.This module 2 backlight comprises a diffuser plate 20, a plurality of line source 30 and a reflecting plate 40, and these a plurality of line sources 30 are between reflecting plate 30 and diffuser plate 40, and described each line source 30 is cold cathode fluorescent lamp pipes.
This reflecting plate 40 comprises a plurality of reflection projections 41, and these a plurality of reflection projections 41 are spaced on this reflecting plate 40.This reflection projection 41 is the strips that are parallel to each other, and light source 30 directions along the line are extended.The xsect of this reflection projection 41 is the ladder type shape of corners, top 412 that height rose in the middle of promptly this reflection projection 41 comprised and two reflecting curved surfaces 411 that extend to reflecting plate 40.
These a plurality of line sources 30 are tops that front and back are installed in reflecting plate 40 with extending, and each line source 30 is arranged on two adjacent reflection projections, 41 centre positions, and the top 412 of these line source 30 center lines and reflection projection 41 is in same surface level substantially.
Seeing also Fig. 5, is that light is reflexed to partial schematic diagram on the diffuser plate 20.Two reflecting curved surfaces 411 of each reflection projection 41 are located the below in the middle of being positioned at two adjacent lines light sources 30.Each line source 30 sends the light of different crevice projection angles downwards, the optically focused effect that its part light is provided via pairing reflecting curved surface 411, and reflex to and the diffuser plate 20 of these adjacent lines light source 30 zone line correspondences on, reach the integral brightness of strengthening diffuser plate 20 with even, and then improve the outgoing light homogeneity of module 2 backlight.
This reflecting plate 40 is to make or make through the anodizing of high reflectance in the aluminium extruded type mode with the plastic basis material of high reflectance.
Claims (10)
1. module backlight, it comprises at least one light source, a diffuser plate and a reflecting plate, this light source is characterized in that between reflecting plate and diffuser plate: this reflecting plate simultaneously is provided with a plurality of reflection projections towards light source.
2. module backlight as claimed in claim 1 is characterized in that: these a plurality of reflection projections are disposed on the reflecting plate surface.
3. module backlight as claimed in claim 1 is characterized in that: this light source is a line source.
4. module backlight as claimed in claim 3 is characterized in that: this line source is the cold cathode fluorescent lamp pipe.
5. module backlight as claimed in claim 1 is characterized in that: this light source is arranged on two adjacent reflection projection centre positions.
6. module backlight as claimed in claim 1 is characterized in that: the top of this light source center line and this reflection projection is in same surface level substantially.
7. module backlight as claimed in claim 1 is characterized in that: these a plurality of reflection projections are the strips that are parallel to each other.
8. module backlight as claimed in claim 7 is characterized in that: the xsect of this reflection projection is the ladder type shape of corners.
9. module backlight as claimed in claim 8 is characterized in that: top that height rose in the middle of this reflection projection comprised and two reflecting curved surfaces that extend to reflecting plate.
10. module backlight as claimed in claim 9 is characterized in that: this reflecting curved surface can reflex to part light on the diffuser plate of two adjacent light source zone line correspondences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035924 CN1892342A (en) | 2005-07-09 | 2005-07-09 | Back-light module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035924 CN1892342A (en) | 2005-07-09 | 2005-07-09 | Back-light module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1892342A true CN1892342A (en) | 2007-01-10 |
Family
ID=37597372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510035924 Pending CN1892342A (en) | 2005-07-09 | 2005-07-09 | Back-light module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1892342A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867014A (en) * | 2015-02-11 | 2016-08-17 | Lg电子株式会社 | Backlight unit and display apparatus including the same |
| WO2017004970A1 (en) * | 2015-07-06 | 2017-01-12 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN108638653A (en) * | 2018-02-08 | 2018-10-12 | 苏州灯龙光电科技有限公司 | A kind of efficiently controllable cured source module |
| CN112578589A (en) * | 2019-09-27 | 2021-03-30 | 海信视像科技股份有限公司 | Display device and backlight module |
-
2005
- 2005-07-09 CN CN 200510035924 patent/CN1892342A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867014A (en) * | 2015-02-11 | 2016-08-17 | Lg电子株式会社 | Backlight unit and display apparatus including the same |
| CN105867014B (en) * | 2015-02-11 | 2020-05-01 | Lg电子株式会社 | Backlight unit and display device including the same |
| WO2017004970A1 (en) * | 2015-07-06 | 2017-01-12 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US9983436B2 (en) | 2015-07-06 | 2018-05-29 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN108638653A (en) * | 2018-02-08 | 2018-10-12 | 苏州灯龙光电科技有限公司 | A kind of efficiently controllable cured source module |
| CN112578589A (en) * | 2019-09-27 | 2021-03-30 | 海信视像科技股份有限公司 | Display device and backlight module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100468170C (en) | Back light system | |
| US8231238B2 (en) | Method for enhancing light directivity of a lighting apparatus | |
| CN102661535B (en) | Direct type backlight module | |
| CN102661550B (en) | Backlight module | |
| CN202056691U (en) | Backlight module of display and liquid crystal display | |
| CN201246632Y (en) | Large area uniform luminance LED backlight device | |
| CN202598316U (en) | Direct type backlight module and liquid crystal display device | |
| CN106019709A (en) | Liquid crystal module and liquid crystal display screen | |
| CN102620188B (en) | Backlight module | |
| CN102518984A (en) | Backlight module and liquid crystal display device | |
| CN1912703A (en) | Direct light backlight mould set and its transmitting plate | |
| CN101688649B (en) | Lighting apparatus, display unit, and television receiver | |
| CN101556000A (en) | LED line light source and backlight source device | |
| US20050128745A1 (en) | Apparatus for homogeneously distributing lights | |
| CN102691940A (en) | Edge type backlight module | |
| CN101725915A (en) | Back light module | |
| CN1892342A (en) | Back-light module group | |
| CN1916721A (en) | Backlight module | |
| CN1664673A (en) | Backlight module and method for forming the same | |
| CN102865511A (en) | Direct type backlight module | |
| CN102182968A (en) | Novel LED (light-emitted diode) backlight module | |
| US9086592B2 (en) | Direct illumination type backlight module, bottom reflector and liquid crystal display | |
| CN201787425U (en) | LCD backlight module with integrated display housing | |
| CN103364991A (en) | Backlight module and display device | |
| CN1612017A (en) | Back light module assembly and its light guide board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |