CN102588848A - Lateral light-entering type LED liquid crystal backlight module - Google Patents
Lateral light-entering type LED liquid crystal backlight module Download PDFInfo
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- CN102588848A CN102588848A CN2012100655998A CN201210065599A CN102588848A CN 102588848 A CN102588848 A CN 102588848A CN 2012100655998 A CN2012100655998 A CN 2012100655998A CN 201210065599 A CN201210065599 A CN 201210065599A CN 102588848 A CN102588848 A CN 102588848A
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- lamp bar
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Abstract
The invention discloses a lateral light-entering type LED liquid crystal backlight module, which comprises an outer frame, a middle frame, liquid crystal glass, a back plate, a reflective sheet, a light guide plate, an optical diaphragm, a radiating plate and an LED light bar. The back plate comprises a bearing surface and a radiating surface, the reflective sheet, the light guide plate and the optical diaphragm are sequentially stacked on the bearing surface of the back plate from bottom to top, the radiating plate is fixed to the radiating surface of the back plate, the radiating plate is close to the edge of the light entering side of the light guide plate, a light bar fixing portion is arranged on the light guide plate in a projecting manner, and the LED light bar is fixed to the light bar fixing portion. The radiating plate can be rapidly detached from the back plate, the LED light bar is replaced by a non-defective light bar, rework process is greatly simplified, rework time is shortened, the probability of leading other materials to be defective during rework can be greatly reduced, and radiating effects are greatly improved owing to the designed structure.
Description
Technical field
The invention belongs to technical field of television sets, particularly a kind of side incident type LED LCD backlight module.
Background technology
Along with development of science and technology, LED relies on its characteristics ultra-thin, environmental protection and energy saving also to begin to be applied to the TV imaging technique.
As shown in Figure 1; Be side incident type LED LCD backlight module section structure; This side incident type LED LCD backlight module comprises: housing, center, backboard; And stack gradually heat radiation aluminum strip, reflector plate, LGP, blooming piece, liquid-crystalline glasses from bottom to up in said backboard, near said LGP incident side place, be provided with LED lamp bar at said LGP.
If this LED breaks down, the LED lamp bar that just must more renew, the LED of LED LCD backlight module replacing at present lamp bar quite bothers.Need elder generation with preceding housing, liquid-crystalline glasses, center, blooming piece, LGP, reflector plate etc. take out one by one, could take out LED lamp bar and change.Whole unloading process is not only complicated, and in unloading process, very easily causes the damage of other materials, has a strong impact on machine life.
Therefore, be necessary to provide a kind of LED LCD backlight module of replacing LED lamp bar for convenience detach.
Summary of the invention
Main purpose of the present invention is to provide a kind of side incident type LED LCD backlight module, is intended to solve dismounting LED lamp bar complicated technology problem in the prior art.
In order to realize goal of the invention; The present invention provides a kind of side incident type LED LCD backlight module; Comprise: housing, center, liquid-crystalline glasses, backboard, reflector plate, LGP, blooming piece, heat sink and LED lamp bar; Said liquid-crystalline glasses is clamped fixing by said center and said housing, said backboard comprises loading end and radiating surface, and said reflector plate, LGP, blooming piece stack gradually on the loading end of being located at said backboard from bottom to up; Radiating surface at said backboard is fixed with heat sink; Said heat sink protrudes in said LGP and is provided with a lamp bar fixed part near the edge of said LGP incident side, and said LED lamp bar is fixed in place, said lamp bar fixed part position.
Preferably, said lamp bar fixed part comprises support chip, spacer, and this support chip is the part that heat sink stretches out LGP, is in same with this LGP, and this spacer is perpendicular to said support chip, and court extends near said center direction.
Preferably; Said lamp bar fixed part comprises support chip, spacer and locking plate, and this support chip and locking plate are the part that heat sink stretches out LGP, is in same with this LGP; This spacer is perpendicular to said support chip; And towards extending near said center direction, said locking plate and said support chip lay respectively at the both sides of said spacer, and the side elevation of whole lamp bar fixed part is " protruding " type.
Preferably, said LED lamp bar locks through screw or is attached on the said spacer through heat-conducting glue.
Preferably, said backboard is provided with a plurality of screws, and said heat sink passes said screw through screw and is fixed in said backboard lateral surface.
Preferably, said backboard is provided with and is used to limit the heat sink boss of superior displacement in the horizontal direction.
Preferably, said heat sink is processed by aluminum.
Preferably, a kind of television set, it comprises like each described side incident type LED LCD backlight module among the claim 1-7.
Side incident type LED LCD backlight modular structure of the present invention can be dismantled heat sink through heat sink is external fast from backboard, change non-defective unit lamp bar; Need not with reflector plate LGP, diaphragm; Center, liquid-crystalline glasses, materials such as preceding chase are all dismantled; Simplify the technology of doing over again greatly, reduce and do over again man-hour, and also can reduce greatly in the process of rework other materials is caused bad probability.The structure of this patent design has simultaneously been improved radiating effect greatly.
Description of drawings
Fig. 1 is the cross section enlarged drawing of side incident type LED LCD backlight module in the prior art;
Fig. 2 is the cross section enlarged drawing of side incident type LED LCD backlight module in the first embodiment of the invention;
Fig. 3 is the cross section enlarged drawing of side incident type LED LCD backlight module in the second embodiment of the invention.
Real sight, functional characteristics and the advantage of the object of the invention will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention provides a kind of side incident type LED LCD backlight module 20; Comprise: housing 220, center 210, liquid-crystalline glasses 230, backboard 290, reflector plate 260, LGP 250, blooming piece 240, heat sink 270 and LED lamp bar 280; Said liquid-crystalline glasses 230 is clamped fixing by said center 210 and said housing 220; Said backboard 290 comprises loading end and radiating surface; Said reflector plate 260, LGP 250, blooming piece 240 stack gradually on the loading end of being located at said backboard 290 from bottom to up, are fixed with heat sink 270 at the radiating surface of said backboard 290, and said heat sink 270 is near the edge of said LGP 250 incident side 251; Protrude in said LGP 250 and be provided with a lamp bar fixed part 274, said LED lamp bar 280 is fixed in said lamp bar fixed part 274 positions.
Please with reference to Fig. 2, Fig. 2 is the cross section enlarged drawing of first embodiment of the invention side incident type LED LCD backlight module 20.As shown in the figure; LED LCD backlight module 20 of the present invention; Comprise: housing 220, center 210, liquid-crystalline glasses 230, backboard 290, and stack gradually reflector plate 260, LGP 250, the blooming piece 240 on the loading end of being located at said backboard 290 from bottom to up.
Radiating surface at said backboard 290 is fixed with aluminum heat sink 270; Said heat sink 270 is close to the radiating surface of said backboard 290; Be used to improve the heat conductivility and the heat transfer efficiency of whole LED LCD backlight module 20, improve the life-span of LED LCD backlight module 20, in the present embodiment; Said backboard 290 is provided with a plurality of screws, and said heat sink 270 passes said screw through screw 300 and is fixed in said backboard 290 radiating surfaces.
Said heat sink 270 is near the edge of said LGP 250 incident side; Protrude in said LGP 250 and be provided with a lamp bar fixed part 274; This lamp bar fixed part 274 comprises support chip 271, spacer 272 and locking plate 273, and this support chip 271 and the part that locking plate 273 stretches out LGP 250 for heat sink 270 are in same with this LGP 250; This spacer 272 is perpendicular to said support chip 271; And towards extending near said center 210 directions, said locking plate 273 and said support chip 271 lay respectively at the both sides of said spacer 272, and the side elevation of whole lamp bar fixed part 274 is " protruding " type; Said locking plate 273 is used for said LED lamp bar 280 more firm fixing; Prevent aluminum heat sink 270 because after long-time the use, 274 local deformations of said lamp bar fixed part cause the said LED lamp bar 280 can not be over against the incident side of said LGP 250.
In the present embodiment, said locking plate 273 is provided with screw, passes said screw through screw 300 and is fixed on the center 210.
Should be noted in the discussion above that said locking plate 273 also can have other modes to fix.
In the second embodiment of the present invention, as shown in Figure 3, also locking plate 273 can be set.
Said LED lamp bar 280 locks through screw 300 or is attached on the said spacer 272 through heat-conducting glue.
Said LED lamp bar 280 comprises a plurality of LED crystal grain 281 and is the wiring board that said a plurality of LED crystal grain 281 provide driving that said LED crystal grain 281 is over against the incident side setting of said LGP 250.
Said center 210 is provided with extension 211 near the madial wall of LGP 250; Said extension 211 parts stretch between said liquid-crystalline glasses 230 and the LGP 250, liquid-crystalline glasses 230 and LGP 250 are separated, and leave certain interval 400; Prevent that blooming piece 240 from pushing the liquid-crystalline glasses 230 that is in its top owing to heat expansion; And liquid-crystalline glasses 230 and this LGP 250 are parallel to each other, and said housing 220 is attached on the lateral wall of said center 210, and part protrudes in said center 210; Form groove between the extension 211 of said center 210 and the said housing 220, be used for fixing said liquid-crystalline glasses 230.
The shape structure of said housing 220 designs according to the profile of said center 210.
Said blooming piece 240 can be any one in prismatic lens, diffusion sheet and the brightening piece.
Because led light source is a cold light source, conduction gives the heat of said LGP 250 little, and LGP itself does not generate heat; 280 heatings of LED lamp bar are bigger, and it is more to dispel the heat, so only need heat sink 270 be set in LED lamp bar 280 parts; Further improvement as the embodiment of the invention; On said backboard 290, also be provided with a boss 291, this boss 291 is used to limit heat sink 270 displacement in the horizontal direction, when installation or removal; Can make hole and the better contraposition of screw on the backboard 290 on the heat sink 270, make dismounting more convenient.
The present invention can be according to design demand, when the both sides of side incident type LED LCD backlight module 20 or many sides are all used LED lamp bar 280, all can adopt design of the present invention.
When finding that said LED lamp bar 280 goes wrong the needs replacing; In the unloading process of said LED lamp bar 280, only need earlier said screw 300 to be turned on, take off said heat sink 270; Then said LED lamp bar 280 is taken off from said heat sink 270 and get final product; Unloading process is simple and convenient, and is difficult for having influence on the damage of miscellaneous part, improves machine life.
Side incident type LED LCD backlight module 20 of the present invention is mainly used on the television set.
Side incident type LED LCD backlight module 20 structures of the present invention can be dismantled heat sink 270 through heat sink 270 is external fast from backboard 290, change non-defective unit lamp bar; Need not with reflector plate 260 LGP 250, blooming piece 240; Center 210, liquid-crystalline glasses 230, housing 220 materials such as grade are all dismantled; Simplify the technology of doing over again greatly, reduce and do over again man-hour, and also can reduce greatly in the process of rework other materials is caused bad probability.The structure of this patent design has simultaneously also been improved radiating effect greatly.
More than be merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. side incident type LED LCD backlight module; Comprise: housing, center, liquid-crystalline glasses, backboard, reflector plate, LGP, blooming piece, heat sink and LED lamp bar, said liquid-crystalline glasses is clamped fixing by said center and said housing, and said backboard comprises loading end and radiating surface; Said reflector plate, LGP, blooming piece stack gradually on the loading end of being located at said backboard from bottom to up; It is characterized in that be fixed with heat sink at the radiating surface of said backboard, said heat sink is near the edge of said LGP incident side; Protrude in said LGP and be provided with a lamp bar fixed part, said LED lamp bar is fixed in place, said lamp bar fixed part position.
2. side incident type LED LCD backlight module as claimed in claim 1; It is characterized in that; Said lamp bar fixed part comprises support chip, spacer, and this support chip is the part that heat sink stretches out LGP, is in same with this LGP; This spacer is perpendicular to said support chip, and court extends near said center direction.
3. side incident type LED LCD backlight module as claimed in claim 1 is characterized in that said lamp bar fixed part comprises support chip, spacer and locking plate; This support chip and locking plate are the part that heat sink stretches out LGP; Be in same with this LGP, this spacer is perpendicular to said support chip, and court extends near said center direction; Said locking plate and said support chip lay respectively at the both sides of said spacer, and the side elevation of whole lamp bar fixed part is " protruding " type.
4. like claim 2 or 3 described side incident type LED LCD backlight modules, it is characterized in that said LED lamp bar locks through screw or is attached on the said spacer through heat-conducting glue.
5. side incident type LED LCD backlight module as claimed in claim 1 is characterized in that said backboard is provided with a plurality of screws, and said heat sink passes said screw through screw and is fixed in said backboard lateral surface.
6. side incident type LED LCD backlight module as claimed in claim 1 is characterized in that said backboard is provided with and is used to limit the heat sink boss of superior displacement in the horizontal direction.
7. side incident type LED LCD backlight module as claimed in claim 1 is characterized in that said heat sink is processed by aluminum.
8. a television set is characterized in that, it comprises like each described side incident type LED LCD backlight module among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100655998A CN102588848A (en) | 2012-03-13 | 2012-03-13 | Lateral light-entering type LED liquid crystal backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100655998A CN102588848A (en) | 2012-03-13 | 2012-03-13 | Lateral light-entering type LED liquid crystal backlight module |
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| CN102588848A true CN102588848A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012100655998A Pending CN102588848A (en) | 2012-03-13 | 2012-03-13 | Lateral light-entering type LED liquid crystal backlight module |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865510A (en) * | 2012-09-12 | 2013-01-09 | 深圳市华星光电技术有限公司 | Backlight unit and liquid-crystal display device |
| CN102878465A (en) * | 2012-10-16 | 2013-01-16 | 京东方科技集团股份有限公司 | High-brightness light-emitting diode (LED) panel lamp |
| CN102878480A (en) * | 2012-08-22 | 2013-01-16 | 深圳市华星光电技术有限公司 | Sidelight backlight module |
| CN102889525A (en) * | 2012-10-18 | 2013-01-23 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display thereof |
| CN102889516A (en) * | 2012-09-12 | 2013-01-23 | 深圳市华星光电技术有限公司 | Backlight module and display panel |
| CN103048813A (en) * | 2012-12-28 | 2013-04-17 | 苏州胜利精密制造科技股份有限公司 | Novel liquid crystal module structure |
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN103697378A (en) * | 2013-12-18 | 2014-04-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2014079030A1 (en) * | 2012-11-22 | 2014-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104089218A (en) * | 2014-06-23 | 2014-10-08 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105652359A (en) * | 2015-11-06 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | Light guide module group and display apparatus comprising the light guide module group |
| CN106597739A (en) * | 2016-12-20 | 2017-04-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display module |
| CN107219682A (en) * | 2017-07-21 | 2017-09-29 | 微鲸科技有限公司 | LCDs and display device |
| CN109307953A (en) * | 2018-10-26 | 2019-02-05 | 蚌埠国显科技有限公司 | A kind of liquid crystal display die set containing reflective mirror |
| CN110596953A (en) * | 2019-08-13 | 2019-12-20 | 武汉恒生光电产业有限公司 | Liquid crystal display and backlight module thereof |
| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
| JP2020160415A (en) * | 2019-03-28 | 2020-10-01 | マクセル株式会社 | Head-up display |
| CN114442376A (en) * | 2022-02-22 | 2022-05-06 | 四川长虹电器股份有限公司 | Side-entering type ultra-narrow fourth side liquid crystal module |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN103104868B (en) * | 2012-08-15 | 2015-09-09 | 贵阳海信电子有限公司 | A kind of LED-backlit module and electronic equipment |
| CN102878480A (en) * | 2012-08-22 | 2013-01-16 | 深圳市华星光电技术有限公司 | Sidelight backlight module |
| CN102878480B (en) * | 2012-08-22 | 2014-12-24 | 深圳市华星光电技术有限公司 | Sidelight backlight module |
| CN102865510B (en) * | 2012-09-12 | 2015-06-10 | 深圳市华星光电技术有限公司 | Backlight unit and liquid-crystal display device |
| CN102889516A (en) * | 2012-09-12 | 2013-01-23 | 深圳市华星光电技术有限公司 | Backlight module and display panel |
| WO2014040286A1 (en) * | 2012-09-12 | 2014-03-20 | 深圳市华星光电技术有限公司 | Backlight module and display panel |
| CN102865510A (en) * | 2012-09-12 | 2013-01-09 | 深圳市华星光电技术有限公司 | Backlight unit and liquid-crystal display device |
| CN102878465A (en) * | 2012-10-16 | 2013-01-16 | 京东方科技集团股份有限公司 | High-brightness light-emitting diode (LED) panel lamp |
| CN102889525A (en) * | 2012-10-18 | 2013-01-23 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display thereof |
| WO2014079030A1 (en) * | 2012-11-22 | 2014-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN103048813B (en) * | 2012-12-28 | 2015-09-16 | 苏州胜利精密制造科技股份有限公司 | Novel liquid crystal module structure |
| CN103048813A (en) * | 2012-12-28 | 2013-04-17 | 苏州胜利精密制造科技股份有限公司 | Novel liquid crystal module structure |
| CN103697378A (en) * | 2013-12-18 | 2014-04-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US9303886B2 (en) | 2014-06-23 | 2016-04-05 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN104089218A (en) * | 2014-06-23 | 2014-10-08 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105652359A (en) * | 2015-11-06 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | Light guide module group and display apparatus comprising the light guide module group |
| WO2017076008A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Light guide module and display device comprising light guide module |
| CN106597739A (en) * | 2016-12-20 | 2017-04-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display module |
| CN106597739B (en) * | 2016-12-20 | 2019-09-17 | 深圳市华星光电技术有限公司 | A kind of backlight module and liquid crystal display die set |
| CN107219682A (en) * | 2017-07-21 | 2017-09-29 | 微鲸科技有限公司 | LCDs and display device |
| CN109307953A (en) * | 2018-10-26 | 2019-02-05 | 蚌埠国显科技有限公司 | A kind of liquid crystal display die set containing reflective mirror |
| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
| JP2020160415A (en) * | 2019-03-28 | 2020-10-01 | マクセル株式会社 | Head-up display |
| JP7068223B2 (en) | 2019-03-28 | 2022-05-16 | マクセル株式会社 | Head-up display |
| CN110596953A (en) * | 2019-08-13 | 2019-12-20 | 武汉恒生光电产业有限公司 | Liquid crystal display and backlight module thereof |
| CN114442376A (en) * | 2022-02-22 | 2022-05-06 | 四川长虹电器股份有限公司 | Side-entering type ultra-narrow fourth side liquid crystal module |
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Addressee: Skyworth LCD Modules (Shenzhen) Co., Ltd. Document name: Notification of an Office Action |
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Application publication date: 20120718 |