CN103676318B - A kind of backlight structure of liquid crystal display television - Google Patents
A kind of backlight structure of liquid crystal display television Download PDFInfo
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- CN103676318B CN103676318B CN201310703173.5A CN201310703173A CN103676318B CN 103676318 B CN103676318 B CN 103676318B CN 201310703173 A CN201310703173 A CN 201310703173A CN 103676318 B CN103676318 B CN 103676318B
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- guide plate
- optical diaphragm
- light guide
- liquid crystal
- plastic cement
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 43
- 230000003287 optical effect Effects 0.000 claims abstract description 56
- 239000004033 plastic Substances 0.000 claims abstract description 35
- 239000013078 crystal Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The present invention discloses a kind of backlight structure of liquid crystal display television, wherein, including light guide plate, optical diaphragm, plastic cement center, LED light bar, the LED light bar is arranged in the light guide plate side, the optical diaphragm is arranged above the light guide plate, and in LED light bar outer side edges, the middle part of the plastic cement center, which is extended, flap for the plastic cement center setting, the end of the flap extends between light guide plate and optical diaphragm, for resisting light guide plate and optical diaphragm.The present invention is by improving traditional liquid crystal television backlight structure, flap is extended at the middle part of plastic cement center, it is extended between light guide plate and optical diaphragm using the end of the flap, for resisting light guide plate and optical diaphragm, thus change the path of light, formed multi-angle diffusion mixing light and light transmission diaphragm, solve the problems, such as light leakage and the problem of water ripples and shadow occur.
Description
Technical field
The present invention relates to LCD TV field more particularly to a kind of backlight structure of liquid crystal display television.
Background technique
In the prior art, inside liquid crystal television backing structure mode is " plastic cement center+optical diaphragm+light guide plate ", knot
Structure is as shown in Figure 1, assemble sequence from top to bottom are as follows: first places light guide plate 100, then places optical diaphragm 120 in light guide plate
On 100, plastic cement center 130 is finally assembled, and 130 flanging of plastic cement center pushes down optical diaphragm 120, the setting of LED light 110 is being led
100 side of tabula rasa, liquid crystal display panel 140 are arranged on optical diaphragm 120.
Under existing backlight structure of liquid crystal display television mode, 130 flanging of plastic cement center needs to push down 120 surrounding of optical diaphragm
The certain width in edge, if the width numerical value is less than normal, in mechanical test, 120 edge of optical diaphragm is possible to LCD TV
It bounces out 130 flanging of plastic cement center and generates diaphragm and locally arch upward phenomenon.In addition, 120 upper surface of optical diaphragm is in plastic cement
The gap of 130 flanging lower surface of frame needs to control.Gap is excessive, is easy light leakage, gap is too small, 120 expanded by heating of optical diaphragm
Limited space is easy to produce diaphragm partial drape and the problems such as water ripples or shadow occurs, picture quality is caused to be affected.
For the modular structure of the LCD TV of narrow frame, especially side entering type, due to being limited by border width, LED
Lamp is smaller to viewing area distance, and leakage lamp son occurs in viewing area, and the risk of light leakage is higher.In order to improve light leakage, and avoid the occurrence of
The firefly phenomenon of lamp is leaked, the quality of narrow frame picture is improved, generallys use two ways now:
Mode one: as shown in Fig. 2, in the incident side top edge of light guide plate 100, a shading rubber belt 101 is pasted.This patch hides
The mode of optical cement band, task difficulty is big, low efficiency, and cannot ensure the consistency of quality.
Mode two: as shown in figure 3, at the edge of 120 incident side of optical diaphragm, one layer of black surround region 102 of application to printed.This
Kind structure needs to carry out secondary operation to optical diaphragm, it is therefore desirable to which the optical diaphragm processing producer with this printing technology comes
Cooperate product development.Since optical diaphragm is by first cutting, then carry out secondary operation, this cause the production yield of optical diaphragm compared with
Low, price is opposite just high, has also accordingly increased the cost of product.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of backlight structure of liquid crystal display television, it is intended to
Solve existing backlight structure of liquid crystal display television be easy to cause optical diaphragm occur in mechanical test water ripples or shadow phenomenon, with
And the problem of light leakage phenomena.
Technical scheme is as follows:
A kind of backlight structure of liquid crystal display television, wherein described including light guide plate, optical diaphragm, plastic cement center, LED light bar
LED light bar setting is arranged above the light guide plate in the light guide plate side, the optical diaphragm, the plastic cement center setting
In LED light bar outer side edges, the middle part of the plastic cement center, which is extended, flap, and the end of the flap extends to leaded light
Between plate and optical diaphragm, for resisting light guide plate and optical diaphragm.
The backlight structure of liquid crystal display television, wherein the flap include a connection plastic cement center the first side and
With described first in the connection connecting, the tail portion on the connection side is connected with the pressure being inserted between light guide plate and optical diaphragm
Side.
The backlight structure of liquid crystal display television, wherein the LED light bar is provided with a protrusion in light guide plate corresponding position
Portion.
The backlight structure of liquid crystal display television, wherein be provided with liquid crystal display panel above the optical diaphragm.
The backlight structure of liquid crystal display television, wherein the end of the liquid crystal display panel supports on plastic cement center.
The utility model has the advantages that the present invention is prolonged in the middle part of plastic cement center by improving to traditional liquid crystal television backlight structure
Setting flap is stretched, is extended between light guide plate and optical diaphragm using the end of the flap, for resisting light guide plate and light
Diaphragm is learned, thus changes the path of light, multi-angle diffusion mixing light is formed and light transmission diaphragm, solves asking for light leakage
The problem of inscribing and occur water ripples and shadow.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of backlight structure of liquid crystal display television in the prior art.
Fig. 2 is that the structural schematic diagram after shading rubber belt is arranged in backlight structure of liquid crystal display television in the prior art.
Fig. 3 is to coat the structural schematic diagram behind black surround region in backlight structure of liquid crystal display television in the prior art.
Fig. 4 is the structural schematic diagram of backlight structure of liquid crystal display television of the invention.
Fig. 5 to Fig. 7 is optical diaphragm rigging position different from plastic cement center in backlight structure of liquid crystal display television of the invention
Schematic diagram.
Specific embodiment
The present invention provides a kind of backlight structure of liquid crystal display television, to keep the purpose of the present invention, technical solution and effect more clear
Chu defines, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
Referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of backlight structure of liquid crystal display television preferred embodiment of the present invention, such as scheme
It is shown comprising light guide plate 100, optical diaphragm 120, plastic cement center 130, LED light bar 110, the setting of LED light bar 110 exist
100 side of light guide plate, the optical diaphragm 120 are arranged above the light guide plate 100, and the plastic cement center 130 is arranged
In 110 outer side edges of LED light bar.
In the present invention, the middle part of the plastic cement center 130, which is extended, flap, and the end of the flap extends
To between light guide plate 100 and optical diaphragm 120, for resisting light guide plate 100 and optical diaphragm 120, in flap and optical film
The edge of piece 120 forms hanging cambered surface, to change the path of light, forms multi-angle diffusion mixing light and light transmission light
Learn diaphragm 120, this addresses the problem narrow frame mould group incident side leakage lamp fluorescence worm phenomenon, therefore the present invention can be used it is less
LED light quantity reaches the optical specification of requirement, LED light can also be made to deviate toward backlight internal adjustment, by shorter apart from light mixing
It can reach quality requirements, to realize that TV frame further reduces.
Meanwhile backlight structure of liquid crystal display television of the invention, optical diaphragm 120 are not needed to carry out secondary operation, not needed
Producing line worker attaches shading rubber belt at optical diaphragm edge or light-guide edge, in this way, the work of production narrow frame liquid crystal module
Industry difficulty not will increase, and will not influence production efficiency, product cost reduces, so that product more competitive advantage.
In addition, backlight structure of liquid crystal display television of the invention, since the end of the flap is supported in light guide plate 100 and light
It learns between diaphragm 120, so it thoroughly solves optical diaphragm and be hit by a bullet in mechanical test and jumps out middle frame support edge and water occur
The problems such as ripple or shadow, reliability of such liquid crystal module durings transport, sale etc. is higher, reduces bad reprocess
Rate.
This new structure mode of the invention, assemble sequence from top to bottom are as follows: first place light guide plate 100, then
Plastic cement center 130 is assembled, finally places optical diaphragm 120, wherein the end of the flap of plastic cement center 130 is pressed in light guide plate
On 100 four sides, and the top of end is supported in 120 edge of optical diaphragm.
It should be noted that four edges that backlight structure of liquid crystal display television of the invention is not limited to optical diaphragm are all placed in
On the end of plastic cement center, other than optical diaphragm incident side edge must be placed on plastic cement center end, excess-three side
It can choose some or all of be placed on plastic cement center.As shown in Figures 5 to 7, which show LED light bars enters in left side
The placement schematic of several optical diaphragms under light.Dotted line in figure represents the optical diaphragm edge and is placed in plastic cement center folding
Under side, solid line represents the optical diaphragm edge and is placed on plastic cement center flanging.
Backlight structure of liquid crystal display television of the invention is not limited to inside side entering type liquid crystal module, is readily applicable to straight-down negative
Enter inside the liquid crystal module of light.In addition, backlight structure of liquid crystal display television of the invention is also not necessarily limited to be applied in liquid crystal module, it can also
To be suitable for all-in-one machine LCD TV, it is equally applicable in any backlight modular structure in addition to LCD TV.
Backlight structure of liquid crystal display television of the invention is also not limited to side and singly enters light mode backlight, can be adapted for side pair and enters
Light, bill kept on file enter light, upper tripping in light, and four sides enter the various side entrance back structures such as light.
More specifically, the flap includes the first company connecting while described first of a connection plastic cement center
Edge fit, the tail portion on the connection side are connected with the flanging being inserted between light guide plate and optical diaphragm, and flanging therein is to support
The position between optical diaphragm 120 and light guide plate frontside edge is held, i.e. flanging upper end supports optical diaphragm 120, and lower end, which supports, leads
Tabula rasa 100, it is preferable that the flanging is arranged to arc shape with the link position for connecting side, and internal and outside is all provided with and is set to one
The arc shape of radian is determined, such as radian is 120 degree, to form hanging cambered surface.
Further, the LED light bar 110 is provided with a protrusion in 100 corresponding position of light guide plate.
In addition, being provided with liquid crystal display panel 140 above the optical diaphragm 120.Specifically, as shown in figure 4, the liquid crystal
The end of panel 140 supports on plastic cement center 130.
In conclusion the present invention is prolonged in the middle part of plastic cement center by improving to traditional liquid crystal television backlight structure
Setting flap is stretched, is extended between light guide plate and optical diaphragm using the end of the flap, for resisting light guide plate and light
Diaphragm is learned, thus changes the path of light, multi-angle diffusion mixing light is formed and light transmission diaphragm, solves asking for light leakage
The problem of inscribing and occur water ripples and shadow.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (3)
1. a kind of backlight structure of liquid crystal display television, which is characterized in that including light guide plate, optical diaphragm, plastic cement center, LED light bar, institute
LED light bar setting is stated in the light guide plate side, the optical diaphragm is arranged above the light guide plate, and the plastic cement center is set
It sets in LED light bar outer side edges, the middle part of the plastic cement center, which is extended, flap, and the end of the flap, which extends to, leads
Between tabula rasa and optical diaphragm, for resisting light guide plate and optical diaphragm；The edge of the flap and optical diaphragm forms outstanding
Empty cambered surface；
The flap includes the first connection side connecting while described first of a connection plastic cement center, the connection
The tail portion on side is connected with the flanging being inserted between light guide plate and optical diaphragm；The flanging is arranged with the link position for connecting side
Camber shape, and internal and outside is respectively provided with camber shape；
The LED light bar is provided with a protrusion in light guide plate corresponding position.
2. backlight structure of liquid crystal display television according to claim 1, which is characterized in that be provided with liquid above the optical diaphragm
Crystal panel.
3. backlight structure of liquid crystal display television according to claim 2, which is characterized in that the end of the liquid crystal display panel supports
On plastic cement center.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103676318A CN103676318A (en) | 2014-03-26 |
| CN103676318B true CN103676318B (en) | 2019-05-21 |
Family
ID=50314357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703173.5A Active CN103676318B (en) | 2013-12-19 | 2013-12-19 | A kind of backlight structure of liquid crystal display television |
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| Country | Link |
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| CN (1) | CN103676318B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105204211B (en) * | 2015-10-29 | 2018-11-30 | 京东方科技集团股份有限公司 | A kind of liquid crystal module |
| KR102448362B1 (en) * | 2015-12-29 | 2022-09-27 | 엘지디스플레이 주식회사 | 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 |
| CN113625387B (en) * | 2021-08-20 | 2023-06-02 | 业成科技（成都）有限公司 | Backlight module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080041896A (en) * | 2006-11-08 | 2008-05-14 | 삼성전자주식회사 | Backlight assembly |
| TWI448780B (en) * | 2011-10-04 | 2014-08-11 | Au Optronics Corp | Display apparatus |
-
2013
- 2013-12-19 CN CN201310703173.5A patent/CN103676318B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
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| CN103676318A (en) | 2014-03-26 |
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