CN201066421Y - Back light module and LCD capable of preventing light leakage - Google Patents
Back light module and LCD capable of preventing light leakage Download PDFInfo
- Publication number
- CN201066421Y CN201066421Y CNU2007201211931U CN200720121193U CN201066421Y CN 201066421 Y CN201066421 Y CN 201066421Y CN U2007201211931 U CNU2007201211931 U CN U2007201211931U CN 200720121193 U CN200720121193 U CN 200720121193U CN 201066421 Y CN201066421 Y CN 201066421Y
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Abstract
The utility model discloses a backlight module capable of preventing light leakage and a liquid crystal display. The backlight module comprises a light guide plate, a light source, a frame and a shading adhesive cloth, wherein, the light source is positioned on the incoming light side of the light guide plate, the frame comprises a stepped lug boss and a light-blocking wall, the lug boss encloses the outer side of the light guide plate, the shading adhesive cloth covers the outgoing light surface of the light guide plate and the top surface of the lug boss, the frame is also provided with a groove which is extended from the top surface of the lug boss into the light-blocking wall, and the shading adhesive cloth is extended to the bottom of the groove. The utility model increases the distance from the matching surfaces of the frame and the light guide plate to the edge of the shading adhesive cloth, thus weakening the intensity of light rays transmitted from the shading adhesive cloth; on the other hand, even though the light rays are transmitted out, the light rays are blocked off by the groove, so the utility model further prevents light leakage.
Description
[technical field]
The utility model relates to a kind of module backlight and uses the LCD of this module backlight.
[background technology]
LCD mainly is made of liquid crystal panel and module backlight, Figure 1 shows that the cross-sectional schematic of existing module backlight.
Yet, the material of glue frame has certain light transmission, when the distance L 12 of the mating surface 113 of glue frame and light guide plate and glue frame barricade 111 hour, the edge that is light guide plate is when the close together of glue frame barricade 111, light A will transmit from the gap 112 between shading patch 15 and the glue frame barricade 111, cause frame light leak backlight, the quality that influence shows.The screens part that cooperates in glue frame and light guide plate particularly; be subjected to the restriction of modular structure, draw-in groove side 114 is very little to distance L 11 regular meetings of glue frame side barricade 115, and the edge of light guide plate is nearer far from the distance of glue frame barricade 111; be easy to produce light leak, as shown in Figure 1, 2.
In order to eliminate or to alleviate this light leakage phenomena, need stop the conduction route that light transmits, perhaps reduce the intensity that light transmits.
[summary of the invention]
Fundamental purpose of the present utility model solves technical matters of the prior art exactly, a kind of module backlight and LCD that prevents light leak is provided, by reducing intensity that light transmits and the light that transmits being blocked, prevent frame light leak backlight, thereby help to improve the display quality of display.
For achieving the above object, the utility model provides a kind of module backlight that prevents light leak, comprise light guide plate, light source, framework and shading patch, described light source is positioned at the light incident sides of light guide plate, described framework comprises the boss that formation is step-like and the wall that is in the light, described boss is enclosed in the outside of light guide plate, described shading patch covers on the end face of the exiting surface of light guide plate and boss, also be provided with the groove that extends to the portion within the walls of being in the light from the end face of boss on the described framework, described shading patch extends to the bottom of groove.
In one embodiment, described groove comprises first groove on the first side relative with the light guide plate light incident sides that is positioned at framework, on the length direction of this first side, the length of described first groove is less than or equal to the length of first side, on the direction vertical with the end face of boss, the height of described first groove is less than the height of the wall that is in the light.
In another kind of embodiment, on the left and right side of the light incident sides of described light guide plate, be respectively equipped with screens, the boss of second and third side that being used for of described framework cooperates with the left and right side of light guide plate is provided with the draw-in groove that matches with screens, described groove comprise on second and third side that lays respectively at framework and with corresponding second groove in the position of draw-in groove, on the length direction of described second and third side, the length of described second groove is greater than the length of draw-in groove, on the direction vertical with the end face of boss, the height of described second groove equal the to be in the light height of wall.
Described module backlight also comprises reflector plate and blooming piece, and described reflector plate is positioned at the site face side of light guide plate, and described blooming piece is positioned at the exiting surface side of light guide plate, and described shading patch covers on the end face of blooming piece and boss.
Described framework is generally the glue frame.
The utility model also provides a kind of LCD simultaneously, comprise liquid crystal panel and module backlight, described module backlight comprises light guide plate, light source, framework and shading patch, described light source is positioned at the light incident sides of light guide plate, described framework comprises the boss that formation is step-like and the wall that is in the light, described boss is enclosed in the outside of light guide plate, described shading patch covers on the end face of the exiting surface of light guide plate and boss, the end face support liquid crystal panel of described boss, and the described circummure that is in the light is combined in the outside of liquid crystal panel, also be provided with the groove that extends to the portion within the walls of being in the light from the end face of boss on the described framework, described shading patch extends to the bottom of groove.
The beneficial effects of the utility model are: the groove that extends to the portion within the walls of being in the light from the end face of boss by one of design on framework, and the shading patch is extended to the bottom of groove, increased distance like this, thereby weakened the intensity of the light that transmits from the mating surface of framework and light guide plate to shading patch edge; On the other hand,, also can be sheltered from, further play the effect that prevents light leak, and also can not have influence on the size that the glue frame is put glass by groove even there is light to transmit.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the cross-sectional schematic of an existing module backlight;
Fig. 2 is the partial structurtes synoptic diagram of an existing module glue frame backlight;
Fig. 3 is the cross-sectional schematic of the module backlight of a kind of embodiment of the utility model;
Fig. 4 is the partial structurtes synoptic diagram of the module glue frame backlight of the another kind of embodiment of the utility model;
Fig. 5 is the structural representation of LCD of the present utility model.
[embodiment]
Embodiment one:
Please refer to Fig. 3, module 2 backlight comprises framework 21, light guide plate 22, blooming piece 23, reflector plate 24, shading patch 25 and light source, light guide plate 22 is generally has certain thickness rectangular slab, it has a light incident sides, an one site face 221 and an exiting surface 222, light source is arranged in the light incident sides (figure does not draw) of light guide plate 22, and light incident sides is the bottom side or the side of light guide plate 22 normally, and light emitted light transmission light incident sides launches light in the light guide plate.Site face 221 is the bottom surface of light guide plate 22, and exiting surface 222 is the end face of light guide plate 22, site face 221 with the light of side light source incident by reflection and diffusion to change direction of light, make light pass through exiting surface 222 ejaculations.Reflector plate 24 is positioned at site face 221 sides of light guide plate, is used to strengthen reflection of light.Then place some blooming pieces 23 on the exiting surface 222 of light guide plate, light is handled.Framework 21 is generally the glue frame, in light guide plate 22, light source, blooming piece 23 and reflector plate 24 be enclosed in, four sides with reference to light guide plate 22, framework 21 also has four limits, suppose that one side of closing on the light guide plate light incident sides is four side, one side relative with the light guide plate light incident sides is the first side, is positioned at second and third side that is of the light guide plate light incident sides left and right sides.Framework 21 comprises the step-like boss of formation 214 and the wall 211 that is in the light, described boss 214 is enclosed in the outside of light guide plate 22, the wall 211 that is in the light is vertical or vertical substantially with the end face of boss 214, be provided with first groove 212 at least one side in first, second and third side of framework 21, preferably first groove be arranged on the first side of framework 21.Described first groove 212 extends to the inside of the wall 211 that is in the light from the end face of boss 214.Described shading patch 25 covers on the exiting surface 222 or blooming piece 23 of light guide plate 22, and extends on the end face of boss 214, and the base of shading patch 25 extends to the bottom of first groove 212.A kind of shape of first groove 212 and structure are as shown in Figure 3, on the length direction of the side at first groove, 212 places, the length of described first groove 212 is less than or equal to the length of this side, and on the direction vertical with the end face of boss 214, the height of first groove 212 is less than the height of the wall 211 that is in the light.Like this, increased distance on the one hand, thereby weakened the intensity of the light that transmits from framework light guide plate mating surface 213 to shading patch edge 251; On the other hand, even there is light B to transmit, also can be sheltered from by groove.So just play the effect that prevents light leak, and also can not have influence on the size of glue frame support liquid crystal panel.
Embodiment two:
Please refer to Fig. 4; generally; be respectively equipped with the screens (not shown) on the left and right side of the light incident sides of light guide plate; framework be used for cooperating with the left and right side of light guide plate second; the boss of three sides is provided with the draw-in groove 216 that matches with screens; in this case embodiment once in first groove structure described be not suitable for second of framework; on three sides; it mainly is the reason of procedure for producing; and the handle position of shading patch will be designed in the opposite of this groove structure one side; otherwise the shading patch just is difficult to smooth assembling, and is not easy to tear off its surperficial PET diaphragm.Therefore, adopt first groove on the first side of framework, structure is shown in first groove 212 among Fig. 3,4.Second and third side of framework can adopt second groove, and structure is shown in second groove 215 among Fig. 4.Second groove 215 is corresponding with the position of draw-in groove 216, on the length direction of second and third side, the length of second groove 215 is greater than the length of draw-in groove 216, on the direction vertical with the end face of boss, and the height of second groove 215 equal the to be in the light height of wall 211.
During concrete the making, on the limit, the left and right sides of framework, near the framework draw-in groove 216 the wall 211 that is in the light is outwards dug a step, just bigger to the distance L 21 of the wall 214 that is in the light of framework from the side near the wall that is in the light of draw-in groove 216 like this than side near the wall that is in the light from draw-in groove 216 to the distance from bottom L22 of second groove 215, the scope of corresponding shading framework that patch covers is just bigger, so just can weaken from shading patch edge and the framework light intensity that the gap transmitted between the wall that is in the light, can play the effect that alleviates light leak.
Embodiment three:
Because second and third side of framework is main light leak place, module backlight in the present embodiment only is provided with second groove 215 as shown in Figure 4 on second and third side of framework, and the base of shading patch 25 extends to the bottom of second groove 215, thereby prevents light leak.
Module backlight and liquid crystal panel in the foregoing description are constituted LCD, as shown in Figure 5, light source 26 is positioned at the light incident sides 223 of light guide plate 22, framework 21 comprises the step-like boss of formation 214 and the wall 211 that is in the light, described boss 214 is enclosed in the outside of light guide plate 22, the wall 211 that is in the light is vertical or vertical substantially with the end face of boss 214, and the infrabasal plate support of liquid crystal panel 3 is on the end face of the boss 214 of backlight module frame, and the wall 211 that is in the light is enclosed in the outside of liquid crystal panel 3.
By above embodiment as can be known, frame light leakage phenomena backlight can be eliminated or alleviate to the utility model just effectively as long as when design glue frame and shading patch, make simple structural adjustment.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. module backlight that can prevent light leak, comprise light guide plate, light source, framework and shading patch, described light source is positioned at the light incident sides of light guide plate, described framework comprises the boss that formation is step-like and the wall that is in the light, described boss is enclosed in the outside of light guide plate, described shading patch covers on the end face of the exiting surface of light guide plate and boss, it is characterized in that: also be provided with the groove that extends to the portion within the walls of being in the light from the end face of boss on the described framework, described shading patch extends to the bottom of groove.
2. the module backlight that prevents light leak as claimed in claim 1, it is characterized in that: described groove comprises first groove on the first side relative with the light guide plate light incident sides that is positioned at framework, on the length direction of this first side, the length of described first groove is less than or equal to the length of first side, on the direction vertical with the end face of boss, the height of described first groove is less than the height of the wall that is in the light.
3. the module backlight that prevents light leak as claimed in claim 1, it is characterized in that: on the left and right side of the light incident sides of described light guide plate, be respectively equipped with screens, described framework be used for cooperating with the left and right side of light guide plate second, the boss of three sides is provided with the draw-in groove that matches with screens, described groove comprises and lays respectively at second of framework, on three sides and with corresponding second groove in the position of draw-in groove, described second, on the length direction of three sides, the length of described second groove is greater than the length of draw-in groove, on the direction vertical with the end face of boss, the height of described second groove equal the to be in the light height of wall.
4. the module backlight that prevents light leak as claimed in claim 2, it is characterized in that: on the left and right side of the light incident sides of described light guide plate, be respectively equipped with screens, described framework be used for cooperating with the left and right side of light guide plate second, the boss of three sides is provided with the draw-in groove that matches with screens, described groove also comprises and lays respectively at second of framework, on three sides and with corresponding second groove in the position of draw-in groove, described second, on the length direction of three sides, the length of described second groove is greater than the length of draw-in groove, on the direction vertical with the end face of boss, the height of described second groove equal the to be in the light height of wall.
5. as each described module backlight that prevents light leak in the claim 1 to 4, it is characterized in that: also comprise reflector plate and blooming piece, described reflector plate is positioned at the site face side of light guide plate, described blooming piece is positioned at the exiting surface side of light guide plate, and described shading patch covers on the end face of blooming piece and boss.
6. as each described module backlight that prevents light leak in the claim 1 to 4, it is characterized in that: described framework is the glue frame.
7. LCD, comprise liquid crystal panel and module backlight, described module backlight comprises light guide plate, light source, framework and shading patch, described light source is positioned at the light incident sides of light guide plate, described framework comprises the boss that formation is step-like and the wall that is in the light, described boss is enclosed in the outside of light guide plate, described shading patch covers on the end face of the exiting surface of light guide plate and boss, the end face support liquid crystal panel of described boss, and the described circummure that is in the light is combined in the outside of liquid crystal panel, it is characterized in that: also be provided with the groove that extends to the portion within the walls of being in the light from the end face of boss on the described framework, described shading patch extends to the bottom of groove.
8. LCD as claimed in claim 7, it is characterized in that: described groove comprises first groove on the first side relative with the light guide plate light incident sides that is positioned at framework, on the length direction of this first side, the length of described first groove is less than or equal to the length of first side, on the direction vertical with the end face of boss, the height of described first groove is less than the height of the wall that is in the light.
9. LCD as claimed in claim 7, it is characterized in that: on the left and right side of the light incident sides of described light guide plate, be respectively equipped with screens, described framework be used for cooperating with the left and right side of light guide plate second, the boss of three sides is provided with the draw-in groove that matches with screens, described groove comprises and lays respectively at second of framework, on three sides and with corresponding second groove in the position of draw-in groove, described second, on the length direction of three sides, the length of described second groove is greater than the length of draw-in groove, on the direction vertical with the end face of boss, the height of described second groove equal the to be in the light height of wall.
10. LCD as claimed in claim 8, it is characterized in that: on the left and right side of the light incident sides of described light guide plate, be respectively equipped with screens, described framework be used for cooperating with the left and right side of light guide plate second, the boss of three sides is provided with the draw-in groove that matches with screens, described groove also comprises and lays respectively at second of framework, on three sides and with corresponding second groove in the position of draw-in groove, described second, on the length direction of three sides, the length of described second groove is greater than the length of draw-in groove, on the direction vertical with the end face of boss, the height of described second groove equal the to be in the light height of wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201211931U CN201066421Y (en) | 2007-07-05 | 2007-07-05 | Back light module and LCD capable of preventing light leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201211931U CN201066421Y (en) | 2007-07-05 | 2007-07-05 | Back light module and LCD capable of preventing light leakage |
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| Publication Number | Publication Date |
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| CN201066421Y true CN201066421Y (en) | 2008-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201211931U Expired - Lifetime CN201066421Y (en) | 2007-07-05 | 2007-07-05 | Back light module and LCD capable of preventing light leakage |
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| CN (1) | CN201066421Y (en) |
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| CN102269895A (en) * | 2011-07-15 | 2011-12-07 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN102494280A (en) * | 2011-09-30 | 2012-06-13 | 友达光电股份有限公司 | Backlight module structure |
| CN102798094A (en) * | 2012-04-25 | 2012-11-28 | 友达光电股份有限公司 | Rubber frame structure of backlight module and backlight module thereof |
| CN102918576A (en) * | 2010-06-22 | 2013-02-06 | 夏普株式会社 | Display panel and display device |
| CN103912819A (en) * | 2012-12-31 | 2014-07-09 | 武汉天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN104570476A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
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| CN106896574A (en) * | 2015-11-18 | 2017-06-27 | 株式会社日本显示器 | Back lighting device and its manufacture method and possesses the display device of the back lighting device |
| CN104421768B (en) * | 2013-09-06 | 2017-09-05 | 群创光电股份有限公司 | Backlight module and display device |
| CN104350410B (en) * | 2012-06-01 | 2018-02-06 | 追踪有限公司 | Include the display device of the microcomputer electrooptic modulator comprising shutter |
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| CN109862245A (en) * | 2019-02-21 | 2019-06-07 | 信利光电股份有限公司 | A kind of camera module of anti-PCB light leakage |
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| CN102918576A (en) * | 2010-06-22 | 2013-02-06 | 夏普株式会社 | Display panel and display device |
| CN102918576B (en) * | 2010-06-22 | 2015-02-25 | 夏普株式会社 | Display panel and display device |
| CN102269895A (en) * | 2011-07-15 | 2011-12-07 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN102269895B (en) * | 2011-07-15 | 2013-06-05 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN102494280A (en) * | 2011-09-30 | 2012-06-13 | 友达光电股份有限公司 | Backlight module structure |
| CN102798094B (en) * | 2012-04-25 | 2013-12-18 | 友达光电股份有限公司 | Rubber frame structure of backlight module and backlight module thereof |
| CN102798094A (en) * | 2012-04-25 | 2012-11-28 | 友达光电股份有限公司 | Rubber frame structure of backlight module and backlight module thereof |
| CN104350410B (en) * | 2012-06-01 | 2018-02-06 | 追踪有限公司 | Include the display device of the microcomputer electrooptic modulator comprising shutter |
| CN103912819A (en) * | 2012-12-31 | 2014-07-09 | 武汉天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN104421768B (en) * | 2013-09-06 | 2017-09-05 | 群创光电股份有限公司 | Backlight module and display device |
| US9632236B2 (en) | 2013-09-06 | 2017-04-25 | Innolux Corporation | Backlight module and display device using the same |
| WO2016101372A1 (en) * | 2014-12-24 | 2016-06-30 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
| GB2549636B (en) * | 2014-12-24 | 2021-01-27 | Shenzhen China Star Optoelect | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104570476B (en) * | 2014-12-24 | 2017-06-16 | 深圳市华星光电技术有限公司 | Liquid crystal panel positions plastic structure and display with backlight module |
| GB2549636A (en) * | 2014-12-24 | 2017-10-25 | Shenzhen China Star Optoelect | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104570476A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN106896574A (en) * | 2015-11-18 | 2017-06-27 | 株式会社日本显示器 | Back lighting device and its manufacture method and possesses the display device of the back lighting device |
| CN106896574B (en) * | 2015-11-18 | 2020-10-13 | 株式会社日本显示器 | Backlight device, method for manufacturing the same, and display device provided with the same |
| CN107870466A (en) * | 2016-09-27 | 2018-04-03 | 深圳富泰宏精密工业有限公司 | Display module, electronic installation and its manufacture method using the display module |
| CN108182881A (en) * | 2017-12-20 | 2018-06-19 | 上海天马有机发光显示技术有限公司 | Display device and preparation method thereof |
| US11022828B2 (en) | 2017-12-20 | 2021-06-01 | Shanghai Tianma AM-OLED Co., Ltd. | Display device and fabrication method thereof |
| CN109862245A (en) * | 2019-02-21 | 2019-06-07 | 信利光电股份有限公司 | A kind of camera module of anti-PCB light leakage |
| CN113534529A (en) * | 2021-09-15 | 2021-10-22 | 惠科股份有限公司 | Display module and installation method thereof |
| CN113867036A (en) * | 2021-09-15 | 2021-12-31 | 惠科股份有限公司 | Display module |
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Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150906 |
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Effective date of registration: 20150906 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: Kwai Chung town Yanan Road, BYD Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Biyadi Co., Ltd. |
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