CN2731497Y - Superthin liquid crystal module back-light source - Google Patents
Superthin liquid crystal module back-light source Download PDFInfo
- Publication number
- CN2731497Y CN2731497Y CN 200420042292 CN200420042292U CN2731497Y CN 2731497 Y CN2731497 Y CN 2731497Y CN 200420042292 CN200420042292 CN 200420042292 CN 200420042292 U CN200420042292 U CN 200420042292U CN 2731497 Y CN2731497 Y CN 2731497Y
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- CN
- China
- Prior art keywords
- light
- light source
- main body
- guide plate
- liquid crystal
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- Expired - Fee Related
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Abstract
A liquid crystal module back-light source of the utility model is composed of a light conducting panel main body of transparent plastic provided with a lateral light source, adopting the lateral higher luminance light source as the major structure. An incident light is concentrated into a bundle of narrow light beam toward the bottom face by a sloping reflector which is arranged in front of the lateral light source, and then is emitted to the superthin light conducting panel light emitting region. Three lateral faces and the external side of the bottom face of the light conducting panel main body are all coated by a reflecting layer or plated a film to emit the light to the top face by reflecting and concentrating, the external side of the illumination face of the top face adopts the frosted technology or is coated by a soft light layer or film to scatter the light, so the superthin thickness of the light conducting panel of the light emitting region is achieved by the concentrating of the light through the sloping reflector. The coating or film of reflecting and scattering technology is integration with the light conducting panel main body, so the utility model has the advantages that the structure of the background light source is compact and fast, the volume is reduced, the weight is lighten, the light leakage is almost zero, the cost is reduced and the utility model is more suitable for the need of background light source to the portable liquid crystal display products.
Description
Affiliated technical field
The utility model belongs to the photoelectric display device technical field, relates to a kind of LED-backlit source.
Background technology
Though mostly adopt high brightness sidelight source based on the LED-backlit source of light guide plate at present, but owing to there is not the dip plane to produce the effect of converging of incident light, so its product can not be done very thinly because of the restriction that is subjected to side light source led lamp height and volume, volume also is difficult to again little.The optically focused of three of above-mentioned backlight product sides and bottom surface and reflectively paste masking foils or the reflective sheeting film is realized in addition by three lateral surfaces of light guide plate main body, the top shadow surface then is to realize light diffusion and sheen effect by covering a piece of paper matter diffusion barrier, exists that slit between loose insecure, the light guide plate main body of one-piece construction and paster or the film causes bigger light leakage or the paper ratio is easier to come off, shortcomings such as damage and breakage.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists on utilization structure, provides a kind of and can greatly reduce light guide plate and compact conformation is firm, volume is little, cost is low ultra-thin Liquid Crystal Module backlight.
The technical solution that adopts is so for achieving the above object: the ultra-thin Liquid Crystal Module backlight that is provided comprises that light source the place ahead, a rear portion has the transparent plastic light guide plate main body of top rake or preceding circular arc reflecting surface, have the circular or oval light source cavity volume in built-in sidelight source at the light guide plate main body reflecting surface, on bottom surface, side and the rear portion reflecting surface of light guide plate main body, be equipped with reflecting coating or coatings, be provided with frosting or sheen coating at the end face of light guide plate main body.
Compared with prior art, it is agent structure that the utility model adopts the side higher source luminance, before the sidelight source, increase a sloping reflecter, make incident light after the bottom surface pools a branch of very narrow light beam, inject more ultra-thin light guide plate luminous zone again, the lateral surface of three sides of luminous zone light guide plate main body and bottom surface adopts coating reflector layer or plated film to reflect and converges light emission to end face, the overhead illumination face outside adopts the technology of frosting technology or coating sheen layer or film to realize scattered beam, reach the effect and the purpose of soft light, and converging light, sloping reflecter can realize that (thickness can reach 0.2～0.3mm) to ultra-thinization of luminous zone light guide plate, reflective and astigmatic technology coating or film and light guide plate main body are integrated, make that the compact conformation of backlight is firm, volume-diminished weight lightens, light is revealed and is almost " zero ", therefore cost also reduces, it brings new variation can for traditional LCD module, as reducing volume with the LCD module of LED-backlit, make it and do not have same height with the LCD module in LED-backlit source, what can make mobile phone backlightly has better performance and a higher light utilization efficiency, is fit to portable liquid crystal more and shows the demand of product to backlight.
Description of drawings
Fig. 1 is the work structuring synoptic diagram of a specific embodiment of the utility model.
Fig. 2 is the work structuring synoptic diagram of another specific embodiment of the utility model.
Fig. 3 is the contour structures synoptic diagram of light guide plate main body.
Embodiment
Referring to accompanying drawing, this ultra-thin Liquid Crystal Module backlight is made of the interior transparent plastic system light guide plate main body 6 that is provided with sidelight source 1, and light guide plate main body 6 rear portions have a top rake (Fig. 1) or preceding circular arc (Fig. 2) shape reflecting surface 2; Light guide plate main body position under reflecting surface is provided with the light source cavity volume 7 that is used for setting side light source 1, and the transparent wall of cavity volume 7 is shaped as circle (Fig. 1) or oval (Fig. 2), and sidelight source 1 is located at light source cavity volume 7 rear ends by light source support plate 8; On bottom surface 3, side 4 and the rear portion reflecting surface 2 of light guide plate main body 6, be equipped with reflecting coating or coatings, be provided with frosting or sheen coating at the end face 5 of light guide plate main body 6.In the real work, the light that launch in sidelight source 1 at first converges to the bottom surface through the one or many reflection of reflecting coating or plated film on dip plane or the circular arc reflecting surface 2, enter ultra-thin light guide plate luminous zone at last, after of the repeatedly reflection of this district's light through bottom surface reflecting coating or plated film and three side reflecting coatings or plated film, the end face of light guide plate main body 6 is evenly penetrated at final directive light guide plate top again after the scattering through the frosting at top or sheen coating.
Claims (1)
1, a kind of ultra-thin Liquid Crystal Module backlight, it is characterized in that comprising that light source the place ahead, a rear portion has the transparent plastic light guide plate main body (6) of top rake or preceding circular arc reflecting surface (2), have the circular or oval light source cavity volume (7) in built-in sidelight source (1) at light guide plate main body reflecting surface (2), be equipped with reflecting coating or coatings on bottom surface (3), side (4) and the rear portion reflecting surface (2) of light guide plate main body (6), the end face (5) in light guide plate main body (6) is provided with frosting or sheen coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042292 CN2731497Y (en) | 2004-08-05 | 2004-08-05 | Superthin liquid crystal module back-light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042292 CN2731497Y (en) | 2004-08-05 | 2004-08-05 | Superthin liquid crystal module back-light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731497Y true CN2731497Y (en) | 2005-10-05 |
Family
ID=35051827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420042292 Expired - Fee Related CN2731497Y (en) | 2004-08-05 | 2004-08-05 | Superthin liquid crystal module back-light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731497Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740846B (en) * | 2004-08-25 | 2011-06-15 | 精工电子有限公司 | Illuminating equipment and display equipment using the same |
| CN102331598A (en) * | 2011-09-19 | 2012-01-25 | 苏州向隆塑胶有限公司 | Light guide plate, manufacturing method thereof and light source device |
| CN102374492A (en) * | 2010-08-12 | 2012-03-14 | 海洋王照明科技股份有限公司 | Light guide plate and preparation method thereof, light-emitting diode (LED) plane light source and display |
| US8136955B2 (en) | 2006-10-24 | 2012-03-20 | Sharp Kabushiki Kaisha | Illumination system and display including same |
| CN102809090A (en) * | 2011-05-31 | 2012-12-05 | Lg伊诺特有限公司 | Backlight unit |
| CN103090313A (en) * | 2011-11-07 | 2013-05-08 | 康佳集团股份有限公司 | Light guide plate capable of improving light-emitting diode (LED) lamp incidence light efficiency |
| CN103901525A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN104620041A (en) * | 2012-09-13 | 2015-05-13 | 三菱电机株式会社 | Planar light source device and display device using same |
| CN105511008A (en) * | 2012-12-27 | 2016-04-20 | 厦门天马微电子有限公司 | Light guide device used for liquid crystal displayer |
| US9625635B2 (en) | 2015-05-21 | 2017-04-18 | Hon Hai Precision Industry Co., Ltd. | Light source and backlight module |
| CN107121836A (en) * | 2017-06-09 | 2017-09-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| TWI631407B (en) * | 2017-03-27 | 2018-08-01 | 大陸商開發晶照明（廈門）有限公司 | Surface light source apparatus, edge-lit backlight module and display apparatus |
| US10234080B2 (en) | 2017-03-27 | 2019-03-19 | Kaistar Lighting (Xiamen) Co., Ltd. | Surface light source device, edge-lit type backlight module and display device |
| CN113012559A (en) * | 2019-12-20 | 2021-06-22 | 台湾爱司帝科技股份有限公司 | Method for manufacturing backlight module |
-
2004
- 2004-08-05 CN CN 200420042292 patent/CN2731497Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740846B (en) * | 2004-08-25 | 2011-06-15 | 精工电子有限公司 | Illuminating equipment and display equipment using the same |
| US8136955B2 (en) | 2006-10-24 | 2012-03-20 | Sharp Kabushiki Kaisha | Illumination system and display including same |
| CN101558352B (en) * | 2006-10-24 | 2012-03-28 | 夏普株式会社 | Illumination system and display including same |
| CN102374492A (en) * | 2010-08-12 | 2012-03-14 | 海洋王照明科技股份有限公司 | Light guide plate and preparation method thereof, light-emitting diode (LED) plane light source and display |
| CN102809090A (en) * | 2011-05-31 | 2012-12-05 | Lg伊诺特有限公司 | Backlight unit |
| CN102809090B (en) * | 2011-05-31 | 2017-11-24 | Lg伊诺特有限公司 | Back light unit |
| CN102331598A (en) * | 2011-09-19 | 2012-01-25 | 苏州向隆塑胶有限公司 | Light guide plate, manufacturing method thereof and light source device |
| CN103090313A (en) * | 2011-11-07 | 2013-05-08 | 康佳集团股份有限公司 | Light guide plate capable of improving light-emitting diode (LED) lamp incidence light efficiency |
| CN104620041A (en) * | 2012-09-13 | 2015-05-13 | 三菱电机株式会社 | Planar light source device and display device using same |
| CN104620041B (en) * | 2012-09-13 | 2016-09-21 | 三菱电机株式会社 | Planar light source device and use the display device of this planar light source device |
| US9500795B2 (en) | 2012-09-13 | 2016-11-22 | Mitsubishi Electric Corporation | Area light source device and display device using same |
| CN105511008A (en) * | 2012-12-27 | 2016-04-20 | 厦门天马微电子有限公司 | Light guide device used for liquid crystal displayer |
| CN105511008B (en) * | 2012-12-27 | 2018-12-18 | 厦门天马微电子有限公司 | A kind of guiding device for liquid crystal display |
| CN103901525A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate, backlight module and liquid crystal display device |
| US9625635B2 (en) | 2015-05-21 | 2017-04-18 | Hon Hai Precision Industry Co., Ltd. | Light source and backlight module |
| TWI631407B (en) * | 2017-03-27 | 2018-08-01 | 大陸商開發晶照明（廈門）有限公司 | Surface light source apparatus, edge-lit backlight module and display apparatus |
| US10234080B2 (en) | 2017-03-27 | 2019-03-19 | Kaistar Lighting (Xiamen) Co., Ltd. | Surface light source device, edge-lit type backlight module and display device |
| CN107121836A (en) * | 2017-06-09 | 2017-09-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN113012559A (en) * | 2019-12-20 | 2021-06-22 | 台湾爱司帝科技股份有限公司 | Method for manufacturing backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |