CN103676318A - Backlight structure of liquid crystal display television - Google Patents
Backlight structure of liquid crystal display television Download PDFInfo
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- CN103676318A CN103676318A CN201310703173.5A CN201310703173A CN103676318A CN 103676318 A CN103676318 A CN 103676318A CN 201310703173 A CN201310703173 A CN 201310703173A CN 103676318 A CN103676318 A CN 103676318A
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- guide plate
- light guide
- blooming piece
- backlight structure
- lcd
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Abstract
The invention discloses a backlight structure of a liquid crystal display television. The backlight structure of the liquid crystal display television comprises a light guide plate, an optical film, a plastic middle frame and an LED lamp bar, wherein the LED lamp bar is arranged on the side edge of the light guide plate, the optical film is arranged above the light guide plate, the plastic middle frame is arranged on the outer side edge of the LED lamp bar, an edge folding part is arranged in the middle of the plastic middle frame in an extending mode, and the end of the edge folding part extends to a position between the light guide plate and the optical film to abut against the light guide plate and the optical film. According to the backlight structure of the liquid crystal display television, a traditional backlight structure of the liquid crystal display television is improved, the edge folding part is arranged in the middle of the plastic middle frame in the extending mode, the end of the edge folding part extends to the position between the light guide plate and the optical film to abut against the light guide plate and the optical film, in this way, the path of light is changed, a light-transmitting film which can diffuse and mix light by multiple angles is obtained, light leakage is avoided, and the problem that water ripples and shadows can occur is solved.
Description
Technical field
The present invention relates to LCD TV field, relate in particular to a kind of LCD TV backlight structure.
Background technology
In prior art, inside liquid crystal television backing structure pattern is " plastic cement center+blooming piece+light guide plate ", its structure as shown in Figure 1, assemble sequence is from top to bottom: first place light guide plate 100, then place blooming piece 120 on light guide plate 100, finally assemble plastic cement center 130, and plastic cement center 130 flangings are pushed down blooming piece 120, LED lamp 110 is arranged on light guide plate 100 sides, and liquid crystal panel 140 is arranged on blooming piece 120.
Under existing LCD TV backlight tactic pattern, plastic cement center 130 flangings need to be pushed down the certain width in blooming piece 120 edges, if this width numerical value is less than normal, LCD TV is in mechanical test, and blooming piece 120 edges produce the diaphragm part phenomenon that arches upward with regard to likely bouncing out plastic cement center 130 flangings.In addition, blooming piece 120 upper surfaces need to control apart from the gap of plastic cement center 130 flanging lower surfaces.Excesssive gap, easy light leak, gap is too small, and blooming piece 120 expanded by heating limited space easily produce diaphragm partial drape and occur the problems such as water ripples or shadow causing picture quality to be affected.
For the LCD TV of narrow frame, the modular structure of side entering type especially, owing to being subject to the restriction of border width, LED lamp is less to viewing area distance, and it is young that viewing area occurs leaking lamp, and the risk of light leak is higher.In order to improve light leak, and avoid appearance to leak the firefly phenomenon of lamp, improve the quality of narrow frame picture, generally adopt in two ways now:
Mode one: as shown in Figure 2, at the light inlet side coboundary of light guide plate 100, paste a shading rubber belt 101.The mode of this subsides shading rubber belt, task difficulty is large, and efficiency is low, and can not guarantee the consistance of quality.
Mode two: as shown in Figure 3, at the edge of blooming piece 120 light inlet sides, application to printed one deck black surround region 102.This structure need to be carried out secondary processing to blooming piece, and the blooming piece processing producer therefore need to this printing technology coordinates product development.Because blooming piece is through first cutting, then carry out secondary processing, this causes the production yield of blooming piece lower, and price is relatively just high, has also increased accordingly the cost of product.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of LCD TV backlight structure, be intended to solve existing LCD TV backlight structure and easily cause blooming piece in mechanical test, to occur the problem of water ripples or shadow phenomenon and light leakage phenomena.
Technical scheme of the present invention is as follows:
A kind of LCD TV backlight structure, wherein, comprise light guide plate, blooming piece, plastic cement center, LED lamp bar, described LED lamp bar is arranged on described light guide plate side, described blooming piece is arranged on described light guide plate top, and described plastic cement center is arranged on LED lamp bar outer side edges, and the flanging portion that is provided with is extended at the middle part of described plastic cement center, the end of described flanging portion extends between light guide plate and blooming piece, for propping up light guide plate and blooming piece.
Described LCD TV backlight structure, wherein, described flanging portion comprises the first side of a connection plastic cement center and the fillet being connected with described first side, the afterbody of described fillet is connected with the flanging being inserted between light guide plate and blooming piece.
Described LCD TV backlight structure, wherein, described LED lamp bar is provided with a protuberance at light guide plate correspondence position.
Described LCD TV backlight structure, wherein, described blooming piece top is provided with liquid crystal panel.
Described LCD TV backlight structure, wherein, the end of described liquid crystal panel supports on plastic cement center.
Beneficial effect: the present invention is by improving traditional LCD TV backlight structure, the flanging portion that arranges is extended at middle part at plastic cement center, utilize the end of this flanging portion to extend between light guide plate and blooming piece, be used for propping up light guide plate and blooming piece, so just changed the path of light, form that multi-angle diffusion mixes light and printing opacity diaphragm has solved the problem of light leak and occurred water ripples and the problem of shadow.
Accompanying drawing explanation
Fig. 1 is the structural representation of LCD TV backlight structure in prior art.
Fig. 2 arranges the structural representation after shading rubber belt in LCD TV backlight structure in prior art.
Fig. 3 applies the structural representation behind black surround region in LCD TV backlight structure in prior art.
Fig. 4 is the structural representation of LCD TV backlight structure of the present invention.
Fig. 5 to Fig. 7 is the different rigging position schematic diagram of blooming piece and plastic cement center in LCD TV backlight structure of the present invention.
Embodiment
The invention provides a kind of LCD TV backlight structure, for making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 4, Fig. 4 is the structural representation of a kind of LCD TV backlight structure of the present invention preferred embodiment, as shown in the figure, it comprises light guide plate 100, blooming piece 120, plastic cement center 130, LED lamp bar 110, described LED lamp bar 110 is arranged on described light guide plate 100 sides, described blooming piece 120 is arranged on described light guide plate 100 tops, and described plastic cement center 130 is arranged on LED lamp bar 110 outer side edges.
In the present invention, the flanging portion that is provided with is extended at the middle part of described plastic cement center 130, the end of described flanging portion extends between light guide plate 100 and blooming piece 120, be used for propping up light guide plate 100 and blooming piece 120, edge at flanging portion and blooming piece 120 has formed unsettled cambered surface, thereby changed the path of light, form multi-angle diffusion and mix light and printing opacity blooming piece 120, so just solved the fluorescence worm phenomenon of narrow frame module light inlet side leakage lamp, therefore the present invention can adopt less LED lamp quantity to meet the requirements of optical specification, also can make LED lamp be offset toward internal adjustment backlight, by short distance mixed light more, can reach quality requirements, thereby realizing TV frame further dwindles.
Simultaneously, LCD TV backlight structure of the present invention, its blooming piece 120 does not need to carry out secondary processing, do not need to produce lineman people at blooming piece edge or light guide plate edge attaching shading rubber belt, like this, the task difficulty of producing narrow frame liquid crystal module can not increase, and can not affect production efficiency yet, cost of products reduces, and makes product competitive edge more.
In addition, LCD TV backlight structure of the present invention, because the end of described flanging portion supports between light guide plate 100 and blooming piece 120, so it has thoroughly solved blooming piece and has been hit by a bullet and jumps out middle frame support edge and occur the problems such as water ripples or shadow at mechanical test, the reliability of liquid crystal module in the processes such as transportation, sale is higher like this, has reduced bad repair rate.
This new structure pattern of the present invention, its assemble sequence is from top to bottom: first place light guide plate 100, then assemble plastic cement center 130, finally place blooming piece 120, wherein the end of the flanging portion of plastic cement center 130 is pressed on four limits of light guide plate 100, and the top of end supports in blooming piece 120 edges.
It should be noted that, four edges that LCD TV backlight structure of the present invention is not limited to blooming piece are all positioned on the end of plastic cement center, on blooming piece light inlet lateral edges must be positioned over plastic cement center end, some or all of being positioned on plastic cement center can be selected in its excess-three limit.As shown in Figures 5 to 7, it has represented the placement location schematic diagram of LED lamp bar several blooming pieces under the light inlet of left side.Dotted line in figure represents that this edge of blooming piece is positioned under plastic cement center flanging, and solid line represents that this edge of blooming piece is positioned on plastic cement center flanging.
It is inner that LCD TV backlight structure of the present invention is not limited to side entering type liquid crystal module, and the liquid crystal module that also goes for straight-down negative light inlet is inner.In addition, LCD TV backlight structure of the present invention is also not limited to be applied in liquid crystal module, also goes for all-in-one LCD TV, also applicable in any backlight modular structure except LCD TV.
It is backlight that LCD TV backlight structure of the present invention is also not limited to side list light inlet mode, goes for the two light inlets of side, bill kept on file light inlet, upper and lower light inlet, the various side entrance back structures such as four limit light inlets.
More specifically, described flanging portion comprises the first side of a connection plastic cement center and the fillet being connected with described first side, the afterbody of described fillet is connected with the flanging being inserted between light guide plate and blooming piece, flanging is wherein the position supporting between blooming piece 120 and light guide plate frontside edge, be that flanging upper end supports blooming piece 120, lower end supports light guide plate 100, preferably, the link position of this flanging and fillet is arranged to arc shape, and the arc shape of certain radian is all arranged in inner and outside, for example radian is 120 degree, to form unsettled cambered surface.
Further, described LED lamp bar 110 is provided with a protuberance at light guide plate 100 correspondence positions.
In addition, above described blooming piece 120, be provided with liquid crystal panel 140.Concrete, as shown in Figure 4, the end of described liquid crystal panel 140 supports on plastic cement center 130.
In sum, the present invention is by improving traditional LCD TV backlight structure, the flanging portion that arranges is extended at middle part at plastic cement center, utilize the end of this flanging portion to extend between light guide plate and blooming piece, be used for propping up light guide plate and blooming piece, so just changed the path of light, formed that multi-angle diffusion mixes light and printing opacity diaphragm has solved the problem of light leak and occurred water ripples and the problem of shadow.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (5)
1. a LCD TV backlight structure, it is characterized in that, comprise light guide plate, blooming piece, plastic cement center, LED lamp bar, described LED lamp bar is arranged on described light guide plate side, described blooming piece is arranged on described light guide plate top, and described plastic cement center is arranged on LED lamp bar outer side edges, and the flanging portion that is provided with is extended at the middle part of described plastic cement center, the end of described flanging portion extends between light guide plate and blooming piece, for propping up light guide plate and blooming piece.
2. LCD TV backlight structure according to claim 1, it is characterized in that, described flanging portion comprises the first side of a connection plastic cement center and the fillet being connected with described first side, and the afterbody of described fillet is connected with the flanging being inserted between light guide plate and blooming piece.
3. LCD TV backlight structure according to claim 1, is characterized in that, described LED lamp bar is provided with a protuberance at light guide plate correspondence position.
4. LCD TV backlight structure according to claim 1, is characterized in that, described blooming piece top is provided with liquid crystal panel.
5. LCD TV backlight structure according to claim 4, is characterized in that, the end of described liquid crystal panel supports on plastic cement center.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703173.5A CN103676318B (en) | 2013-12-19 | 2013-12-19 | A kind of backlight structure of liquid crystal display television |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310703173.5A CN103676318B (en) | 2013-12-19 | 2013-12-19 | A kind of backlight structure of liquid crystal display television |
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| CN103676318A true CN103676318A (en) | 2014-03-26 |
| CN103676318B CN103676318B (en) | 2019-05-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047082A (en) * | 2015-08-28 | 2015-11-11 | 上海传英信息技术有限公司 | Extremely narrow frame structure of display device |
| CN105204211A (en) * | 2015-10-29 | 2015-12-30 | 京东方科技集团股份有限公司 | Liquid crystal module |
| CN105445849A (en) * | 2016-01-04 | 2016-03-30 | 合肥京东方显示光源有限公司 | Light guide plate and manufacturing method thereof, backlight module, and display apparatus |
| CN105715984A (en) * | 2014-12-01 | 2016-06-29 | 业鑫科技顾问股份有限公司 | Backlight module and liquid crystal display device |
| CN106932939A (en) * | 2015-12-29 | 2017-07-07 | 乐金显示有限公司 | Liquid crystal display device |
| CN113625387A (en) * | 2021-08-20 | 2021-11-09 | 业成科技（成都）有限公司 | Backlight module |
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| KR20080041896A (en) * | 2006-11-08 | 2008-05-14 | 삼성전자주식회사 | Backlight assembly |
| CN102402065A (en) * | 2011-10-04 | 2012-04-04 | 友达光电股份有限公司 | Display device |
| CN102929012A (en) * | 2012-10-29 | 2013-02-13 | 京东方科技集团股份有限公司 | Display device |
| CN202835065U (en) * | 2012-10-24 | 2013-03-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN103226255A (en) * | 2013-03-18 | 2013-07-31 | 京东方科技集团股份有限公司 | Liquid crystal display |
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2013
- 2013-12-19 CN CN201310703173.5A patent/CN103676318B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080041896A (en) * | 2006-11-08 | 2008-05-14 | 삼성전자주식회사 | Backlight assembly |
| CN102402065A (en) * | 2011-10-04 | 2012-04-04 | 友达光电股份有限公司 | Display device |
| CN202835065U (en) * | 2012-10-24 | 2013-03-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN102929012A (en) * | 2012-10-29 | 2013-02-13 | 京东方科技集团股份有限公司 | Display device |
| CN103226255A (en) * | 2013-03-18 | 2013-07-31 | 京东方科技集团股份有限公司 | Liquid crystal display |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715984A (en) * | 2014-12-01 | 2016-06-29 | 业鑫科技顾问股份有限公司 | Backlight module and liquid crystal display device |
| CN105715984B (en) * | 2014-12-01 | 2018-03-23 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and liquid crystal display device |
| CN105047082A (en) * | 2015-08-28 | 2015-11-11 | 上海传英信息技术有限公司 | Extremely narrow frame structure of display device |
| CN105204211A (en) * | 2015-10-29 | 2015-12-30 | 京东方科技集团股份有限公司 | Liquid crystal module |
| CN106932939A (en) * | 2015-12-29 | 2017-07-07 | 乐金显示有限公司 | Liquid crystal display device |
| CN105445849A (en) * | 2016-01-04 | 2016-03-30 | 合肥京东方显示光源有限公司 | Light guide plate and manufacturing method thereof, backlight module, and display apparatus |
| US10254471B2 (en) | 2016-01-04 | 2019-04-09 | Boe Technology Group Co., Ltd. | Light guide plate and manufacturing method thereof, backlight module, and display apparatus |
| CN113625387A (en) * | 2021-08-20 | 2021-11-09 | 业成科技（成都）有限公司 | Backlight module |
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| Publication number | Publication date |
|---|---|
| CN103676318B (en) | 2019-05-21 |
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