CN102352986A - Backlight module and liquid crystal television - Google Patents
Backlight module and liquid crystal television Download PDFInfo
- Publication number
- CN102352986A CN102352986A CN2011102324073A CN201110232407A CN102352986A CN 102352986 A CN102352986 A CN 102352986A CN 2011102324073 A CN2011102324073 A CN 2011102324073A CN 201110232407 A CN201110232407 A CN 201110232407A CN 102352986 A CN102352986 A CN 102352986A
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- blooming piece
- lgp
- module backlight
- extension
- glue frame
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Abstract
The invention discloses a backlight module and a liquid crystal television, wherein the backlight module at least comprises a light guide plate, a square-shaped frame and an optical diaphragm which is arranged at a light emitting side of the light guide plate; the inner side wall of the frame is inwardly provided with an extending part; the extending part extends between the light guide plate and the optical diaphragm, thus the light guide plate and the optical diaphragm are separated; and the light guide plate and the optical diaphragm are parallel mutually or basically. By adopting the structure, not only is the light leakage problem solved, but also the structure of the backlight module is simplified, and the assembly technology becomes simpler.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to a kind of module backlight and liquid crystal TV set.
Background technology
Traditional module backlight, as shown in Figure 1, comprising: backboard 8, glue frame 1 and be stacked and placed on reflector plate 6, LGP 5 and the blooming piece 4 on the said backboard 8 from bottom to up successively; Wherein, glue frame 1 top that is arranged on said blooming piece 4 is used to carry liquid crystal display.Liquid crystal display is fixedly connected with module backlight through external frame 7.The module backlight of said structure under blooming piece 4 is heated wrinkling situation, can form the gap between subregion blooming piece 4 and the LGP 5, and the light that will cause backlight (like the LED lamp) to send like this is incident upon this gap, produces light leakage phenomena.
For solving the light leak problem, comparatively common solution is between glue frame 1 and LGP 5 at present, and the outward flange of blooming piece 4 pastes a seal 2, and its structure is complicated, and assembly technology is loaded down with trivial details, and waste material.In addition, be the patent application document of CN101476689A like publication number, a kind of module backlight; It discloses a kind of structure that solves light leak, is about to silica gel strip and is fixed on the LGP, and blooming piece is fixed in the silica gel strip; There are a lot of problems in this mode in concrete operations realize; For example, inevitably LGP and blooming piece are carried out secondary operation (promptly pasting silica gel strip to LGP), and secondary operation should be avoided as far as possible; Because can bring foreign substance pollutions such as some dusts, thereby influence the optical characteristics of LGP and blooming piece.Simultaneously, how silica gel strip being carried out Reasonable Orientation also is the problem that needs consideration.
Summary of the invention
To the problems referred to above, it is a kind of simple in structure and can effectively solve the module backlight and the liquid crystal TV set of light leak problem that the present invention provides.
Technical scheme of the present invention realizes as follows:
On the one hand; A kind of module backlight is provided; At least comprise: LGP, square shape glue frame and the blooming piece that is arranged on said LGP bright dipping side, inwardly be provided with extension on the said glue frame madial wall, said extension partly stretches between said LGP and the blooming piece; LGP and blooming piece are separated, and described LGP and blooming piece are parallel to each other or are substantially parallel.
On the other hand, a kind of liquid crystal TV set is provided, has comprised: liquid crystal display and module backlight; Said module backlight; At least comprise: LGP, square shape glue frame and the blooming piece that is arranged on said LGP bright dipping side, inwardly be provided with extension on the said glue frame madial wall, said extension partly stretches between said LGP and the blooming piece; LGP and blooming piece are separated, and described LGP and blooming piece are parallel to each other or are substantially parallel.
The invention has the beneficial effects as follows:
1, the present invention is arranged between LGP and the blooming piece through the extension with the glue frame, has both solved the light leak problem between LGP and the blooming piece, has simplified the structure of module backlight in the prior art again, and then has improved the efficiency of assembling of module backlight.
2, liquid crystal TV set is through adopting the module backlight of structure described in the present invention, and its structure becomes simply, and efficiency of assembling improves, and then has reduced the manufacturing cost of liquid crystal TV set.
Description of drawings
Fig. 1 is the structural representation of liquid crystal TV set in the prior art;
Fig. 2 is the structural representation of a specific embodiment of module backlight according to the invention;
Fig. 3 is the structural representation of a specific embodiment of blooming piece locate mode in the prior art;
Fig. 4 is the zoomed-in view of Fig. 3;
Fig. 5 is the structural representation of a specific embodiment of blooming piece locate mode according to the invention;
Fig. 6 is the zoomed-in view of Fig. 5;
Fig. 7 is the structural representation of liquid crystal TV set according to the invention.
The specific embodiment
Below in conjunction with Figure of description the present invention is done further description.
As shown in Figure 2; Module backlight of the present invention; Comprise: backboard 8, LGP 5, square shape glue frame 1, reflector plate 6, the backlight 9 that is arranged on the blooming piece 4 of said LGP 5 bright dipping sides and is arranged on said LGP 5 incident side; Inwardly be provided with extension 102 on said glue frame 1 madial wall 101; Said extension 102 parts stretch between said LGP 5 and the blooming piece 4, and LGP 5 and blooming piece 4 are separated, and said LGP 5 is parallel to each other with blooming piece 4 or is substantially parallel; Said reflector plate 6 and said LGP 5 have been stacked on the horizontal bearing face of said backboard 8 from bottom to up successively.Compare the structure of existing module backlight shown in Figure 1, present embodiment moves to the top of glue frame 1 with blooming piece 4 from the below of glue frame 1, and the advantage of this structure is; The light that backlight 9 sends will be blocked by the extension 102 of glue frame 1 fully; Even it is wrinkling that blooming piece 4 is heated, light can not injected between blooming piece 4 and the LGP 5 yet, the light leak problem that had both solved; Saved the seal 2 in the existing structure again, it is more simple that structure becomes.
Wherein, said backlight 9 can be cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) or light emitting diode (Light Emitting Diode, LED).Preferred LED lamp bar, advantages such as brightness height, power consumption are low, long service life that it has.The wiring board that said LED lamp bar comprises LED and driving is provided for LED.Said LED lamp bar is arranged on the side elevation inboard of said backboard 8.Said blooming piece 4 can be any one in prismatic lens, diffusion sheet and the brightening piece.
In addition; It should be noted that: the planform of the glue frame sidewall described in the present invention should foundation be set with the profile of its build-up member; In the present embodiment; The inboard that said glue frame sidewall and extension 102 surround is equipped with the sidewall of backlight 9 and backboard 8, and the structure that causes glue frame sidewall as shown in Figure 2.
As the further improved embodiment of the foregoing description, glue frame extension of the present invention is made as stepped, and this stepped extension inwardly reduces from glue frame madial wall step by step.As shown in Figure 2; In the present embodiment; Described glue frame extension is the two-stage ladder, and this two-stage ladder inwardly reduces from glue frame madial wall 101 ends step by step, and the last loading end of the first order ladder of nearly glue frame sidewall 101 is higher than the last loading end of second level ladder; Its purpose is: the last loading end of second level ladder is used for bearing optical diaphragm 4, and the last loading end of first order ladder is used to carry the liquid crystal display that is fixedly connected with module backlight.The ladder progression of stair-stepping extension according to the invention is not limited only to two-stage, the ladder progression of said extension can foundation cooperate with the glue frame assembling miscellaneous part specific structural features and set.
As the present invention embodiment further; Push the liquid crystal display that is in its top because of heat expansion for fear of blooming piece; Must between liquid crystal display and blooming piece, leave certain interval; Therefore in the present embodiment, be used to carry first ladder of said liquid crystal display and the difference in height that is used to carry between the second level ladder loading end of said blooming piece should be greater than the thickness of blooming piece.
In actual design process, the length dimension that the extension of said glue frame stretches out should be set according to the size of actual liquid crystal display and required blooming piece.What need pay special attention in addition is: can be placed on the loading end of second ladder of said extension for making blooming piece; The nearly glue frame sidewall end of said second ladder should leave certain placement space; Promptly the length dimension that stretches out of second ladder also should comprise the placement space size of blooming piece, so that the assembling of blooming piece.
In the prior art, the locate mode of blooming piece like Fig. 3 and shown in Figure 4, adopts reference column 41 location that are riveted on the backboard 8, to limit blooming piece 4 moving on in-plane.And after having adopted the layout type (being the top that blooming piece 4 is moved to glue frame 1 extension 102) of the blooming piece described in above-mentioned each embodiment; For guarantee that blooming piece 4 is not shifted on said glue frame 1; At least two alignment pins 42 are set on the extension 102 of glue frame 1 according to the invention, are used to limit said blooming piece 4 each on the second ladder loading end to moving.The corresponding position of said blooming piece is provided with and the suitable locating hole of said alignment pin appearance profile.Particularly; As illustrated in Figures 5 and 6; Be provided with the alignment pin 42 of six strips on the loading end of second ladder of said glue frame 1 extension 102, dual-side is provided with three (dual-side is each three about among the figure) respectively relatively, and these six asymmetric settings of alignment pin; Can either prevent effectively that like this optics module plate from putting back, can accurately locate again.Alignment pin described in the present invention is not limited only to the strip structure, can also be the alignment pin of other versions, like cylindric alignment pin, and cubic alignment pin or the like.Wherein, asymmetric setting comprises: the shape of alignment pin that is in the diverse location place is different, size difference or alignment pin that the position is set is different or the like.Present embodiment as can be seen from Figure 5, the length of each alignment pin that is in upper side edge is less than the length of the alignment pin that is in lower side.In the practical design process, can be according to the concrete structures of the size of concrete blooming piece and glue frame and decide in alignment pin shape, quantity and position.
Further; For guaranteeing to leave certain interval between blooming piece and the liquid crystal display; First ladder of said glue frame extension and the difference in height between second ladder are greater than the thickness of blooming piece; If not to blooming piece perpendicular to mobile qualification the on self in-plane, will cause blooming piece between second ladder at its place and liquid crystal display, to shake.For this reason, the present invention attaches adhesive tape on alignment pin on the said glue frame and the blooming piece after said blooming piece and said glue frame assemble, with restriction blooming piece moving between second ladder and liquid crystal display.
As the present invention embodiment further again; The side that the extension 102 of described glue frame 1 stretches to the nearly said LGP of part between said LGP and the blooming piece is provided with boss; The setting of this boss can better make glue frame and said LGP bright dipping side end face fit, and better restriction places reflector plate and LGP the moving between the extension of said backboard and said glue frame on the said backboard.
As shown in Figure 7, liquid crystal TV set of the present invention comprises: liquid crystal display 3 and module backlight; Said module backlight; At least comprise: LGP 5, square shape glue frame 1 and the blooming piece 4 that is arranged on said LGP 5 bright dipping sides, inwardly be provided with extension on said glue frame 1 madial wall, said extension partly stretches between said LGP 5 and the blooming piece 4; LGP 5 and blooming piece 4 are separated, and described LGP 5 is parallel to each other with blooming piece 4 or is substantially parallel.Particularly, can be above-mentioned any one concrete module embodiment backlight.
It is shown in Figure 1 to compare, and need to use bolt to be fixedly connected in the prior art between the liquid crystal display of liquid crystal TV set and the module backlight, and shown in figure, external frame 7, glue frame 1 and backboard 8 couple together through bolt.And the present invention; As shown in Figure 7; After having adopted the module backlight of structure according to the invention, the fixed connection structure of liquid crystal TV set and module backlight also improves, and promptly need not to adopt bolt to need only the assembling that can accomplish liquid crystal TV set through the cooperation between backboard, glue frame and each parts of external frame; Simplify the structure of liquid crystal TV set, improved the efficiency of assembling of liquid crystal TV set.
More than; Be merely preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (10)
1. module backlight; At least comprise: LGP, square shape glue frame and the blooming piece that is arranged on said LGP bright dipping side; It is characterized in that inwardly be provided with extension on the said glue frame madial wall, said extension partly stretches between said LGP and the blooming piece; LGP and blooming piece are separated, and described LGP and blooming piece are parallel to each other or are substantially parallel.
2. module backlight according to claim 1 is characterized in that, the extension of said glue frame is stepped, and this stepped extension inwardly reduces from glue frame madial wall step by step.
3. module backlight according to claim 2 is characterized in that, said stepped extension comprises the two-stage ladder, and the difference in height of two-stage ladder is greater than the thickness of said blooming piece.
4. module backlight according to claim 1 is characterized in that, the side that said extension stretches to the nearly said LGP of part between said LGP and the blooming piece is provided with boss.
5. according to claim 1,2,3 or 4 described modules backlight; It is characterized in that; The extension of said glue frame is provided with at least two alignment pins that are used to locate said blooming piece, and the corresponding position of said blooming piece is provided with and the suitable locating hole of said alignment pin appearance profile.
6. module backlight according to claim 5 is characterized in that, described at least two alignment pins are at interval and on the asymmetrical extension that is arranged on said glue frame.
7. module backlight according to claim 5 is characterized in that, described alignment pin is a strip.
8. module backlight according to claim 5 is characterized in that, said module backlight also comprises: adhesive tape, this adhesive tape are attached on said alignment pin and the said blooming piece.
9. module backlight according to claim 1 is characterized in that, also comprises the backlight that is arranged on said LGP incident side, and said backlight is a LED lamp bar, the wiring board that described LED lamp bar comprises LED and driving is provided for LED.
10. liquid crystal TV set, comprising: liquid crystal display and module backlight is characterized in that said module backlight is any one a described module backlight in the aforesaid right requirement 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102324073A CN102352986A (en) | 2011-08-15 | 2011-08-15 | Backlight module and liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102324073A CN102352986A (en) | 2011-08-15 | 2011-08-15 | Backlight module and liquid crystal television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352986A true CN102352986A (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102324073A Pending CN102352986A (en) | 2011-08-15 | 2011-08-15 | Backlight module and liquid crystal television |
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| CN (1) | CN102352986A (en) |
Cited By (17)
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|---|---|---|---|---|
| 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 |
| CN103307509A (en) * | 2012-03-06 | 2013-09-18 | 乐金显示有限公司 | Backlight unit and liquid crystal display device using the same |
| CN104019406A (en) * | 2014-06-04 | 2014-09-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104089254A (en) * | 2014-06-17 | 2014-10-08 | 北京京东方视讯科技有限公司 | Rubber frame, backlight module and display device |
| TWI468617B (en) * | 2012-05-03 | 2015-01-11 | Top Victory Invest Ltd | Lighting device |
| CN104566038A (en) * | 2015-01-15 | 2015-04-29 | 京东方光科技有限公司 | Backlight source and display device |
| CN104633531A (en) * | 2013-11-11 | 2015-05-20 | 富泰华精密电子（郑州）有限公司 | Lateral entrance type backlight module |
| CN104854503A (en) * | 2013-10-29 | 2015-08-19 | 堺显示器制品株式会社 | Display device |
| CN105074323A (en) * | 2013-05-15 | 2015-11-18 | 堺显示器制品株式会社 | Backlight device and display device |
| CN105629549A (en) * | 2016-01-26 | 2016-06-01 | 武汉华星光电技术有限公司 | Rubber frame, backlight module and display device |
| CN105683789A (en) * | 2013-11-26 | 2016-06-15 | 堺显示器制品株式会社 | Backlight device and display device |
| CN106932939A (en) * | 2015-12-29 | 2017-07-07 | 乐金显示有限公司 | Liquid crystal display device |
| CN107407835A (en) * | 2015-04-01 | 2017-11-28 | 夏普株式会社 | Lighting device, display device and radiovisor |
| CN108254976A (en) * | 2018-01-23 | 2018-07-06 | 广东欧珀移动通信有限公司 | Display screen component and electronic equipment |
| CN110618561A (en) * | 2019-09-27 | 2019-12-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2021119927A1 (en) * | 2019-12-16 | 2021-06-24 | 京东方科技集团股份有限公司 | Backlight module and display device |
| TWI843844B (en) * | 2019-04-23 | 2024-06-01 | 荷蘭商露明控股公司 | Method of led light engine assembly |
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| CN103307509B (en) * | 2012-03-06 | 2016-02-03 | 乐金显示有限公司 | The liquid crystal indicator of back light unit and this back light unit of use |
| CN103307509A (en) * | 2012-03-06 | 2013-09-18 | 乐金显示有限公司 | Backlight unit and liquid crystal display device using the same |
| US9013651B2 (en) | 2012-03-06 | 2015-04-21 | Lg Display Co., Ltd. | Backlight unit comprising a sheet guide having an opening surrounding edges of a bottom cover, light sources, and a light source fixing unit and liquid crystal display device using the same |
| 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 |
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| CN105074323B (en) * | 2013-05-15 | 2017-04-19 | 堺显示器制品株式会社 | Backlight device and display device |
| CN105074323A (en) * | 2013-05-15 | 2015-11-18 | 堺显示器制品株式会社 | Backlight device and display device |
| CN104854503B (en) * | 2013-10-29 | 2018-05-18 | 堺显示器制品株式会社 | Display device |
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| CN104854503A (en) * | 2013-10-29 | 2015-08-19 | 堺显示器制品株式会社 | Display device |
| CN104633531A (en) * | 2013-11-11 | 2015-05-20 | 富泰华精密电子（郑州）有限公司 | Lateral entrance type backlight module |
| CN105683789A (en) * | 2013-11-26 | 2016-06-15 | 堺显示器制品株式会社 | Backlight device and display device |
| CN104019406A (en) * | 2014-06-04 | 2014-09-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104089254A (en) * | 2014-06-17 | 2014-10-08 | 北京京东方视讯科技有限公司 | Rubber frame, backlight module and display device |
| CN104089254B (en) * | 2014-06-17 | 2016-08-24 | 北京京东方视讯科技有限公司 | One brood lac frame, backlight module and display device |
| CN104566038A (en) * | 2015-01-15 | 2015-04-29 | 京东方光科技有限公司 | Backlight source and display device |
| US10139553B2 (en) | 2015-01-15 | 2018-11-27 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN107407835A (en) * | 2015-04-01 | 2017-11-28 | 夏普株式会社 | Lighting device, display device and radiovisor |
| CN107407835B (en) * | 2015-04-01 | 2021-02-19 | 夏普株式会社 | Illumination device, display device, and television receiver |
| CN106932939A (en) * | 2015-12-29 | 2017-07-07 | 乐金显示有限公司 | Liquid crystal display device |
| CN105629549A (en) * | 2016-01-26 | 2016-06-01 | 武汉华星光电技术有限公司 | Rubber frame, backlight module and display device |
| CN108254976A (en) * | 2018-01-23 | 2018-07-06 | 广东欧珀移动通信有限公司 | Display screen component and electronic equipment |
| WO2019144712A1 (en) * | 2018-01-23 | 2019-08-01 | Oppo广东移动通信有限公司 | Display screen assembly and electronic device |
| TWI843844B (en) * | 2019-04-23 | 2024-06-01 | 荷蘭商露明控股公司 | Method of led light engine assembly |
| CN110618561A (en) * | 2019-09-27 | 2019-12-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN110618561B (en) * | 2019-09-27 | 2022-08-26 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2021119927A1 (en) * | 2019-12-16 | 2021-06-24 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US11892729B2 (en) | 2019-12-16 | 2024-02-06 | K-Tronics (Suzhou) Technology Co., Ltd. | Backlight module and display device |
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Application publication date: 20120215 |
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