CN103175034A - Light-emitting diode (LED) backlight module - Google Patents
Light-emitting diode (LED) backlight module Download PDFInfo
- Publication number
- CN103175034A CN103175034A CN2013100983728A CN201310098372A CN103175034A CN 103175034 A CN103175034 A CN 103175034A CN 2013100983728 A CN2013100983728 A CN 2013100983728A CN 201310098372 A CN201310098372 A CN 201310098372A CN 103175034 A CN103175034 A CN 103175034A
- Authority
- CN
- China
- Prior art keywords
- black
- led
- light
- light source
- coating
- 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
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light-emitting diode (LED) backlight module of a side light source. The LED backlight module comprises a light guide plate and a reflective sheet, wherein the light guide plate is provided with a light entering plane and a light exiting plane, an LED light source is arranged on the side of the light entering plane. The reflective sheet is arranged below the light guide plate, a plurality of blank coatings or black and white color gradient coatings with preset distances among each other are formed on one side of the reflective sheet to lower the reflective light intensity of the light source. The blank coatings or the black and white color gradient coatings are arranged on the LED light position corresponding to the reflective sheet. The width of the blank coatings or the black and white color gradient coatings is larger than that of the light emitting surface of the LED lights. According to the design of the mentioned scheme, the color coatings reaching the reflective sheet are mutually and correspondingly matched with the light LED lights. The color coatings absorb the light entering the reflective sheet, and therefore the uniformity of the light intensity of the emergent light of the backlight module is guaranteed. Further, when the pitches among the LEDs are too large, dark regions are prevented from emerging among the LEDs, and the abnormal optical phenomenon of uneven light and shade of the light guide plate is effectively improved.
Description
Technical field
The present invention relates to a kind of LED-backlit module, relate in particular to the side entering type LED light source backlight module that liquid crystal indicator is used.
Background technology
In recent years, LED (Light Emitting Diode, light emitting diode) pollution-free because of it, color rendering good, the advantage such as energy-conservation is widely used in lighting field, under the application of the display devices such as LCD TV, laptop computer displays, side entering type LED has also replaced CCFL (Cold Cathode FluorescentLamp gradually, the cold cathode fluorescent lamp pipe), become the backlight of main flow.The light source that LED lamp 1 sends, the incidence surface that penetrates LGP (L GP) transmits light source to LGP, and light source forms area source, and then provides liquid crystal panel required light source by the conduct direction of light guide plate mesh point converted light source.
In side light source LED-backlit module, the light source that the LED lamp sends, the incidence surface that penetrates LGP (LGP) transmits light source to LGP, and light source forms area source, and then provides liquid crystal panel required light source by the conduct direction of light guide plate mesh point converted light source.For the design of side light source LED-backlit module, if when the distance between LED (Pitch) is excessive, can form dark section between two LED illuminating sources, and form speck in the dead ahead of LED illuminating source.This phenomenon is called Hot Spot (focal point) or firefly phenomenon.This phenomenon can cause the edge brightness uniformity of the display devices such as LCD TV to reduce, thereby affects whole image quality.
As simple and easyly in Fig. 1 represented that the schematic diagram of Hot Spot phenomenon appears in a LED-backlit module, a plurality of LED lamp 1 illuminating sources see through air layer 2 and shine LGP 40, the luminous range of exposures scope as shown by arrows of each LED illuminating source 1 will form HotSpot zone 4 and dark section zone 5 at the LGP light in part like this.Although can improve the problems referred to above by the distance of dwindling the distance between LED or increase between LED and LGP, but when can therefore increasing by dwindling distance between LED LED the number that backlight module uses can improve the problems referred to above the time, cause the cost of backlight module to improve; When the distance between increase LED and LGP also can be improved the problems referred to above, also cause the reduction of LED light source utilization rate simultaneously; In addition, the blooming piece correspondence that increases LED number or replacing high price also can be improved the problems referred to above, but such scheme all can cause the backlight module cost to increase.
Summary of the invention
Goal of the invention: in order solving in prior art in the design of side light source LED-backlit module, when the distance between LED (Pitch) is excessive, produces between the LED lamp and the dark space occurs, and then cause the optics grade bad phenomenon of LGP incidence surface light and shade inequality.
Technical scheme: in order to achieve the above object, the invention provides a kind of side light source LED-backlit module, comprise that a LGP is provided with incidence surface and exiting surface; The incidence surface side is provided with LED light source; One reflector plate is positioned at the below of described LGP; Form a plurality of black coatings of the preset distance that is spaced apart from each other or black-white colors gradual change coating to reduce the reflecting brightness at light source place on reflector plate one side.
Further, the width of described each black coating or black-white colors gradual change coating is greater than the width of the light-emitting area of LED lamp.
Further, described each black coating is by printing-ink or attaches the realization of black shading rubber belt.
Further, described each black and white face gradual change coating realizes by the shading rubber belt of printing-ink or the gradual change of attaching black and white.
Further, described each black coating or black-white colors gradual change coating are arranged on LED lamp place corresponding to described reflector plate.
The present invention gives another kind of side light source LED-backlit module, comprises that a LGP is provided with incidence surface and exiting surface; The incidence surface side is provided with LED light source; One reflective adhesive tape is positioned at the top of described LGP light inlet side, forms a plurality of black coatings of the preset distance that is spaced apart from each other or black-white colors gradual change coating to reduce the reflecting brightness at light source place on reflective adhesive tape.
Further, the width of described each black coating or black-white colors gradual change coating is greater than the width of the light-emitting area of LED lamp.
Further, described each black coating is by printing-ink or attaches the realization of black shading rubber belt.
Further, described each black and white face gradual change coating realizes by the shading rubber belt of printing-ink or the gradual change of attaching black and white.
Further, described each black coating or black-white colors gradual change coating are arranged on LED lamp place corresponding to described reflective adhesive tape.
Beneficial effect: by black coating or the black-white colors gradual change coating of the preset distance that is spaced apart from each other are set on a side of the corresponding LED lamp of reflector plate, the color coating that reaches on reflector plate coordinates in correspondence with each other with the light source led lamp of backlight module.This color coating absorbs the light that incides on reflector plate, thereby the brightness that guarantees the backlight module emergent light is consistent.And then when the distance between LED (Pitch) is excessive, avoid occurring between LED the dark space, effectively improved the optical anomaly phenomenon of LGP incidence surface light and shade inequality.
Description of drawings
Fig. 1 is the schematic diagram that in prior art, Hot Spot phenomenon appears in the LED-backlit module;
Fig. 2 is LED-backlit module part sectioned view of the present invention;
Fig. 3 is the partial top view of reflector plate and LED lamp source in first embodiment of the invention;
Fig. 4 is the partial top view of reflector plate and LED lamp source in second embodiment of the invention;
Fig. 5 is the graph of a relation of LED visual angle and its briliancy in Fig. 4;
Fig. 6 is the partial top view of reflection tape and LED lamp source in third embodiment of the invention;
Fig. 7 is the partial top view of reflection tape and LED lamp source in fourth embodiment of the invention;
In figure 1, the LED lamp, 40, one LGP, 30, one reflector plate, 50, blooming piece, 70, the glue frame, 60, reflection tape, 601,301, black coating, 602,302, black-white colors gradual change coating.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Be illustrated in figure 2 as a kind of LED-backlit module part sectioned view of the present invention program, this module comprises: LED lamp 1 light source; One LGP 40 is provided with incidence surface and exiting surface, and wherein said incidence surface and described LED lamp source are oppositely arranged; One reflector plate 30 is positioned at the below of described LGP 40; Some blooming pieces 50 are positioned at the top of described LGP 40 and a glue frame 70 with its assembling; Above the incidence surface side, also be provided with a reflection tape 60, this reflection tape is established sticky surface and glue-free; Reflection tape 60 by glue surface plaster on glue frame 70.And be arranged at the reflector plate 30 below LGP and be arranged on the reflective adhesive tape 60 of LGP 40 light inlet sides tops, will be reflected back from the light that LGP reflects LGP, to improve the light source utilization rate.In order to improve when the distance between LED (Pitch) is excessive, will cause occurring between LED the dark space, produce the optics grade bad phenomenon (being Hot Spot phenomenon) of LGP incidence surface light and shade inequality.The edge contour place that this programme has changed corresponding LED lamp source one side of reflector plate 30 is a smooth linear structure.This programme is provided with a black coating of the preset distance that is spaced apart from each other on a side of the corresponding LED lamp source of reflector plate 30, to reduce the reflecting brightness at light source place, improve optics grade bad phenomenon, has simultaneously good reliability and usability.
The partial top view of reflector plate as shown in Figure 3 and LED lamp source, form the black coating 301 of the preset distance that is spaced apart from each other on a side of corresponding LED lamp 1 light source of reflector plate 30, the effect of black coating is that the light that incides on reflector plate 30 is absorbed, thereby the brightness that guarantees the backlight module emergent light is consistent.Black coating 301 is arranged on corresponding LED lamp 1 place, and a plurality of black coatings 301 are corresponding one by one with a plurality of LED lamps 1.Black coating 301 can or attach the black shading glue by printing-ink and bring realization.In order to reach better extinction effect, black coating 301 length L 2 are greater than the width L1 of the light-emitting area of LED lamp 1, and black coating 301 can be set according to actual effect apart from LED surface distance W, the horizontal effective angle a of another hypothesis LED lamp incident light can calculate L2=L1+2W*Tan60 ° at 0 °～120 °.Black coating 301 on reflector plate coordinates in correspondence with each other with the light source led lamp 1 of backlight module, can make the reverberation minimizing of the corresponding LED light source of reflector plate placement, when the distance between LED (Pitch) is excessive, avoid Duoing and causing occurring between the LED lamp phenomenon of dark space than the reverberation away from LED lamp source place at the reverberation of LED lamp source placement, and then effectively improved the optical anomaly phenomenon of LGP incidence surface light and shade inequality.
In order to reach the effect of a upper embodiment, the present invention gives the second embodiment, different from a upper embodiment is, the present embodiment will be arranged on the be spaced apart from each other black coating of preset distance of reflecting piece 30 1 sides, further be improved to, the coating 302 of the black-white colors gradual change of each interval preset distance is set in reflecting piece 30 1 sides, and this coating is that black is gradient to white.The partial top view of reflector plate as shown in Figure 4 and LED lamp source, this coating 302 are arranged on corresponding LED lamp 1 place, and the coating 302 of a plurality of black-white colors gradual changes is corresponding one by one with a plurality of LED lamps 1.Black-white colors gradual change coating 302 can be brought realization by the shading glue of printing-ink or the gradual change of attaching black and white.That position of center line A with the light-emitting area of corresponding LED lamp 1 carries out black (255,255,255) to the gradual change of white (0,0,0) to the adjacent two LED centre position B of correspondence in black-white colors gradual change coating 302.
Show as Fig. 4, black and white gradual change coating 302 length L 3=L1+L0, wherein, the width L1 of the light-emitting area of LED lamp 1, L0 are the distance between two LED lamps, and black-white colors gradual change coating 302 is set in like manner according to actual effect to the distance W on LED lamp surface.When the distance A position was 0～L1/2 scope, the visual angle a of LED lamp was that 0, a is the light that sends of LED lamp light-emitting area and the angle of light-emitting area normal, show according to Fig. 5, briliancy is about 0.98 herein, and this black-white colors gradual change coating is black (255 in 0～L1/2 scope, 255,255), be separately L3/2 place, distance A position in the B position, the visual angle a=arctan[(L3/2-L1/2 of LED lamp)/W], finding the LED briliancy is b, the B position of coating is white (0,0,0).Therefore, interval at L1/2～L3/2, a=arctan[(L1/2～L3/2)/W], according to Fig. 5, can find the briliancy c of its position light, and this interval internally coated color is the gradual change from black (the LED briliancy is about 0.98) to white (the LED briliancy is approximately tabled look-up and is a certain b value).The color value of black-white colors gradual change coating regional briliancy difference (0.98-c) therewith is directly proportional, and is inversely proportional to the 0.98-b value.Accordingly, can by getting specified point or other modes, determine the interval color gradient rule at L1/2～L3/2.Solved the optics grade bad phenomenon that causes LGP incidence surface light and shade inequality when the distance between LED (Pitch) is excessive.The feature of each parts of the present embodiment is similar to the first embodiment, therefore be not described in detail.
In order to reach purpose of the present invention, the present invention gives the 3rd examples of implementation, and the 3rd embodiment is similar to the modular structure of the first embodiment, LED-backlit module part sectioned view as shown in Figure 2, and this module comprises: LED lamp 1 light source; One LGP 40 is provided with incidence surface and exiting surface, and wherein said incidence surface and described LED lamp source are oppositely arranged; One reflector plate 30 is positioned at the below of described LGP 40; Some blooming pieces 50 are positioned at the top of described LGP 40 and a glue frame 70 with its assembling; Above the incidence surface side, also be provided with a reflection tape 60, this reflection tape is established sticky surface and glue-free; Reflection tape 60 by glue surface plaster on glue frame 70.And the reflective adhesive tape 60 that is arranged at the reflector plate 30 below LGP and is arranged on LGP 40 incidence surfaces tops will be reflected back from the light that LGP reflects LGP to improve the light source utilization rate.
Different from the first embodiment is that the black coating 601 of the preset distance that is spaced apart from each other, the partial top view of reflection tape as shown in Figure 6 and LED lamp source are set on a glue-free side of reflection tape 60.Black coating 601 is arranged on corresponding LED lamp 1 place, and a plurality of black coatings 601 are corresponding one by one with a plurality of LED lamps 1.The effect of black coating is that the light that incides on reflection tape 60 is absorbed, thereby the brightness that guarantees the backlight module emergent light is consistent.Black coating 601 can or attach the black shading glue by printing-ink and bring realization.In order to reach better extinction effect, black coating 601 length L 3 are greater than the width L1 of the light-emitting area of LED lamp 1, and effect is set, separately because of LED lamp incident light effective angle a at 120 °, can calculate L3=L1+2W0*Tan60 °.W0 be black coating 602 apart from the LED surface distance, W can set according to actual effect.Black coating on reflection tape coordinates in correspondence with each other with the light source led lamp 1 of backlight module, the reverberation of corresponding LED light source placement on reflection tape is reduced, thereby the brightness that makes the whole light inlet side of LGP reaches unanimously, improves reason with this and dark area effect occurs between the reverberation of LED lamp source placement is than the LED lamp of Duoing away from the reverberation at LED lamp source place and causing.
In order to reach the effect of a upper embodiment, the present invention gives the 4th embodiment, different from the 3rd embodiment is, the black coating of the preset distance that is spaced apart from each other that the present embodiment will be arranged on a glue-free side of reflective adhesive tape 60 further is improved to, and the black and white coating is changed to black-white colors gradual change coating 602.Reflection tape 60 as shown in Figure 7 and the partial top view of LED lamp source, this coating 602 are arranged on corresponding LED lamp 1 place, and a plurality of black-white colors gradual change coatings 602 are corresponding one by one with a plurality of LED lamps 1.Being coated with of black and white gradual change 602 can bring realization by printing-ink or the shading glue that attaches the black and white gradual change.That position of center line A with the light-emitting area of corresponding LED lamp 1 carries out black to the gradual change of white to the adjacent two LED centre position B of correspondence in black-white colors gradual change coating 602.In black-white colors gradual change coating, black color is identical with the second embodiment with the gradual manner of white colour, therefore be not described in detail.
In order to reach better extinction effect, black-white colors gradual change coating 602 length L 4=L1+L0, wherein, the width L1 of the light-emitting area of LED lamp 1, L0 are the distance between two LED lamps, and the width W of black coating is set according to actual effect.In like manner, effectively solved when the distance between LED (Pitch) is excessive, caused the optics grade bad phenomenon of LGP incidence surface light and shade inequality.The feature of each parts of the present embodiment is similar to the 3rd embodiment, therefore be not described in detail.
In sum, the present invention designs the coating of a black coating or black-white colors gradual change on reflector plate, perhaps design the coating of a black coating or black-white colors gradual change on reflection tape, by the way, the present invention can guarantee that the brightness of backlight module emergent light is consistent, improves the optical anomaly phenomenon of LGP incidence surface light and shade inequality.
Claims (10)
1. a side light source LED-backlit module, comprise that a LGP is provided with incidence surface and exiting surface; The incidence surface side is provided with LED light source; One reflector plate is positioned at the below of described LGP; It is characterized in that: form a plurality of black coatings of the preset distance that is spaced apart from each other or black-white colors gradual change coating to reduce the reflecting brightness at light source place on reflector plate one side.
2. a kind of side light source LED-backlit module according to claim 1, it is characterized in that: the width of described each black coating or black-white colors gradual change coating is greater than the width of the light-emitting area of LED lamp.
3. a kind of side light source LED-backlit module according to claim 1 is characterized in that: described each black coating is by printing-ink or attaches the black shading rubber belt and realize.
4. a kind of side light source LED-backlit module according to claim 1 is characterized in that: described each black and white face gradual change coating realizes by printing-ink or the shading rubber belt that attaches the black and white gradual change.
5. a kind of side light source LED-backlit module according to claim 1 is characterized in that: described each black coating or black-white colors gradual change coating are arranged on LED lamp place corresponding to described reflector plate.
6. a side light source LED-backlit module, comprise that a LGP is provided with incidence surface and exiting surface; The incidence surface side is provided with LED light source; One reflective adhesive tape is positioned at the top of described LGP light inlet side, it is characterized in that: form a plurality of black coatings of the preset distance that is spaced apart from each other or black-white colors gradual change coating to reduce the reflecting brightness at light source place on reflective adhesive tape.
7. a kind of side light source LED-backlit module according to claim 6, it is characterized in that: the width of described each black coating or black-white colors gradual change coating is greater than the width of the light-emitting area of LED lamp.
8. a kind of side light source LED-backlit module according to claim 6 is characterized in that: described each black coating is by printing-ink or attaches the black shading rubber belt and realize.
9. a kind of side light source LED-backlit module according to claim 6 is characterized in that: described each black and white face gradual change coating realizes by printing-ink or the shading rubber belt that attaches the black and white gradual change.
10. a kind of side light source LED-backlit module according to claim 6 is characterized in that: described each black coating or black-white colors gradual change coating are arranged on LED lamp place corresponding to described reflective adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100983728A CN103175034A (en) | 2013-03-26 | 2013-03-26 | Light-emitting diode (LED) backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100983728A CN103175034A (en) | 2013-03-26 | 2013-03-26 | Light-emitting diode (LED) backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103175034A true CN103175034A (en) | 2013-06-26 |
Family
ID=48635083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100983728A Pending CN103175034A (en) | 2013-03-26 | 2013-03-26 | Light-emitting diode (LED) backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103175034A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939808A (en) * | 2014-03-31 | 2014-07-23 | 瑞仪光电股份有限公司 | Light source module |
| CN104763937A (en) * | 2015-04-20 | 2015-07-08 | 京东方科技集团股份有限公司 | Backlight backing plate, backlight module and display device |
| CN106154600A (en) * | 2016-06-30 | 2016-11-23 | 珠海市魅族科技有限公司 | The spraying method of a kind of liquid crystal display mould set gum frame and spray assembly |
| WO2017054245A1 (en) * | 2015-10-02 | 2017-04-06 | 魏晓敏 | Led light emitting module and led light emitting device |
| WO2017096864A1 (en) * | 2015-12-10 | 2017-06-15 | 乐视控股（北京）有限公司 | Backlight module, display module and display device |
| CN109581738A (en) * | 2017-09-29 | 2019-04-05 | 夏普株式会社 | Lighting device and display device |
| WO2019149085A1 (en) * | 2018-01-31 | 2019-08-08 | Oppo广东移动通信有限公司 | Electronic device, and display assembly and backlight module thereof |
| CN110673395A (en) * | 2019-10-11 | 2020-01-10 | 深圳创维－Rgb电子有限公司 | Reflector plate manufacturing method, reflector plate and backlight module |
| CN110886973A (en) * | 2018-09-10 | 2020-03-17 | 美蓓亚三美株式会社 | Planar lighting device |
| CN110888263A (en) * | 2018-09-07 | 2020-03-17 | 株式会社日本显示器 | lighting device |
| WO2021218580A1 (en) * | 2020-04-30 | 2021-11-04 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
| CN115407557A (en) * | 2022-08-30 | 2022-11-29 | 武汉华星光电技术有限公司 | display panel |
| CN116052542A (en) * | 2023-02-16 | 2023-05-02 | 友达光电（苏州）有限公司 | display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0571173A2 (en) * | 1992-05-22 | 1993-11-24 | Nokia Mobile Phones Ltd. | Illuminated LCD apparatus |
| JP2003242817A (en) * | 2002-02-13 | 2003-08-29 | Matsushita Electric Ind Co Ltd | Back light device |
| EP1944629A1 (en) * | 2007-01-12 | 2008-07-16 | Minebea Co., Ltd. | Spread illuminating apparatus |
| CN101551960A (en) * | 2008-04-03 | 2009-10-07 | 统宝光电股份有限公司 | Led backlight module system |
| CN201599726U (en) * | 2009-12-25 | 2010-10-06 | 康佳集团股份有限公司 | Reflector |
| CN102466179A (en) * | 2010-11-02 | 2012-05-23 | Lg伊诺特有限公司 | Backlight unit and display apparatus using the same |
-
2013
- 2013-03-26 CN CN2013100983728A patent/CN103175034A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0571173A2 (en) * | 1992-05-22 | 1993-11-24 | Nokia Mobile Phones Ltd. | Illuminated LCD apparatus |
| GB2267378A (en) * | 1992-05-22 | 1993-12-01 | Nokia Mobile Phones Uk | Illuminated liquid crystal displays |
| JP2003242817A (en) * | 2002-02-13 | 2003-08-29 | Matsushita Electric Ind Co Ltd | Back light device |
| EP1944629A1 (en) * | 2007-01-12 | 2008-07-16 | Minebea Co., Ltd. | Spread illuminating apparatus |
| CN101551960A (en) * | 2008-04-03 | 2009-10-07 | 统宝光电股份有限公司 | Led backlight module system |
| CN201599726U (en) * | 2009-12-25 | 2010-10-06 | 康佳集团股份有限公司 | Reflector |
| CN102466179A (en) * | 2010-11-02 | 2012-05-23 | Lg伊诺特有限公司 | Backlight unit and display apparatus using the same |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939808A (en) * | 2014-03-31 | 2014-07-23 | 瑞仪光电股份有限公司 | Light source module |
| US10121938B2 (en) | 2014-03-31 | 2018-11-06 | Radiant Opto-Electronics Corporation | Light source module |
| CN104763937A (en) * | 2015-04-20 | 2015-07-08 | 京东方科技集团股份有限公司 | Backlight backing plate, backlight module and display device |
| WO2017054245A1 (en) * | 2015-10-02 | 2017-04-06 | 魏晓敏 | Led light emitting module and led light emitting device |
| WO2017096864A1 (en) * | 2015-12-10 | 2017-06-15 | 乐视控股（北京）有限公司 | Backlight module, display module and display device |
| CN106154600A (en) * | 2016-06-30 | 2016-11-23 | 珠海市魅族科技有限公司 | The spraying method of a kind of liquid crystal display mould set gum frame and spray assembly |
| CN109581738A (en) * | 2017-09-29 | 2019-04-05 | 夏普株式会社 | Lighting device and display device |
| US11187850B2 (en) * | 2018-01-31 | 2021-11-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device, display assembly thereof, and backlight module thereof |
| WO2019149085A1 (en) * | 2018-01-31 | 2019-08-08 | Oppo广东移动通信有限公司 | Electronic device, and display assembly and backlight module thereof |
| CN110888263A (en) * | 2018-09-07 | 2020-03-17 | 株式会社日本显示器 | lighting device |
| CN110886973A (en) * | 2018-09-10 | 2020-03-17 | 美蓓亚三美株式会社 | Planar lighting device |
| CN110673395A (en) * | 2019-10-11 | 2020-01-10 | 深圳创维－Rgb电子有限公司 | Reflector plate manufacturing method, reflector plate and backlight module |
| WO2021218580A1 (en) * | 2020-04-30 | 2021-11-04 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
| CN115407557A (en) * | 2022-08-30 | 2022-11-29 | 武汉华星光电技术有限公司 | display panel |
| US12153308B2 (en) | 2022-08-30 | 2024-11-26 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel |
| CN116052542A (en) * | 2023-02-16 | 2023-05-02 | 友达光电（苏州）有限公司 | display device |
| TWI834544B (en) * | 2023-02-16 | 2024-03-01 | 大陸商友達光電(蘇州)有限公司 | Display device |
| CN116052542B (en) * | 2023-02-16 | 2025-03-14 | 友达光电（苏州）有限公司 | Display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103175034A (en) | Light-emitting diode (LED) backlight module | |
| US8430546B2 (en) | Dustproof lens and its module for LED road lamp | |
| US9465156B2 (en) | Backlight module and display device | |
| US9146018B2 (en) | Optical lens and backlight module incorporating the same | |
| TWI468802B (en) | Back-light module | |
| US20130128189A1 (en) | Backlight Module and Liquid Crystal Display Device | |
| JP2006140131A (en) | Direct type backlight module | |
| TWI418899B (en) | Liquid crystal display and back-light module thereof | |
| US20160230962A1 (en) | A lighting device | |
| CN105333334A (en) | LED light bar and liquid crystal display module | |
| US8834003B2 (en) | Display apparatus | |
| TW201416771A (en) | Backlight module | |
| CN206804905U (en) | Brightness enhancement film and backlight module | |
| CN202266945U (en) | Side-light type backlight module | |
| KR101070686B1 (en) | Composite Sheet for LCD, and Backlight Unit Using The Same | |
| CN103527966B (en) | A kind of LED lamp bar, side-light type back light module and display device | |
| CN103256561A (en) | Direct-type LED backlight module | |
| KR20140070692A (en) | Back light unit | |
| CN103175033B (en) | Side light source LED-backlit module | |
| TW201500691A (en) | Lens, light source device incorporating the same and light source module incorporating the same | |
| CN202580846U (en) | Direct-lighting type LED (light-emitting diode) area source | |
| CN203478016U (en) | Side-light type LED backlight source with adjustable color coordinates | |
| CN210776108U (en) | Lens for television backlight module | |
| CN203784828U (en) | Optical lens for direct type backlights and liquid crystal display backlight screen | |
| CN208999719U (en) | LED backlight lamp bar, backlight module and display device |
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 |
Application publication date: 20130626 |