CN103672724A - Backlight module shading structure, backlight module and display device - Google Patents

Backlight module shading structure, backlight module and display device Download PDF

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Publication number
CN103672724A
CN103672724A CN201310636513.7A CN201310636513A CN103672724A CN 103672724 A CN103672724 A CN 103672724A CN 201310636513 A CN201310636513 A CN 201310636513A CN 103672724 A CN103672724 A CN 103672724A
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China
Prior art keywords
backlight module
rubber belt
shading rubber
light
shielding structure
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CN201310636513.7A
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Chinese (zh)
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CN103672724B (en
Inventor
胡广跃
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BOE Technology Group Co Ltd
Suzhou BOE Chatani Electronics Co Ltd
BOE Optical Science and Technology Co Ltd
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BOE Technology Group Co Ltd
BOE Optical Science and Technology Co Ltd
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Abstract

The invention relates to the technical field of display devices, and discloses a backlight module shading structure, a backlight module and a display device. The shading structure is frame-shaped shading tape which comprises a wide side edge and multiple narrow side edges, and at least one heat dissipation structure is arranged at each narrow side edge of the shading tape. The backlight module and the display device both comprise the shading structure. The backlight module shading structure, the backlight module and the display device have the advantages that heat generated by a light source of the backlight module is dissipated through the shading tape provided with the heat dissipation structures, so that temperature in the backlight module is lowered, working environment of an optical film is improved, further the situation of thermal dilatational strain of the optical film due to high temperature is improved, and display effect of the display device is improved.

Description

A kind of backlight module light-shielding structure, backlight module and display unit
Technical field
The present invention relates to the technical field of display unit, refer more particularly to a kind of backlight module light-shielding structure, backlight module and display unit.
Background technology
In order to improve the light leak of backlight module, manifest, the display effect that improves display unit, available technology adopting arranges light-shielding structure at backlight module, as shown in Figures 1 and 2, Fig. 1 is the structure of shading rubber belt of the prior art, the use state reference map that Fig. 2 is shading rubber belt.The shading rubber belt 60 of existing backlight module is a kind of enclosed ring, between display panels 50 lower surface edges and the glue frame 30 of backlight module, to play the effect of slurry LCD panel 50 and backlight module.
The defect of prior art is, along with showing under the trend that the thickness requirement of product is more and more thinner, the blooming piece 40 of backlight module inside also requires slimming, but shading rubber belt 60 adopts totally enclosed structure, cause backlight module when work, the light source that the blooming piece 40 of slimming is subject to backlight module gives out the impact of heat, occurs the situation of expanded by heating distortion, thereby causes picture disply uneven.Affect the display effect of display unit.
Summary of the invention
The invention provides a kind of backlight module light-shielding structure, backlight module and display unit, in order to improve the display effect of display unit.
The invention provides a kind of backlight module light-shielding structure, the shading rubber belt that this light-shielding structure is shaped as frame, described shading rubber belt comprises a wide side and a plurality of narrow side, and is positioned on the narrow side of shading rubber belt and is provided with at least one radiator structure.
In technique scheme, the shading rubber belt that is provided with radiator structure by employing is gone out the dissipation of heat of the light source generation of backlight module, reduced the temperature in backlight module, improved the working environment of blooming piece, and then improved the blooming piece expanded by heating deformation that high temperature causes, improved the display effect of display unit.
Preferably, described radiator structure is louvre, heat radiation breach or disconnects mouth.Radiator structure by different structure dispels the heat.
Preferably, the radiator structure on the narrow side adjacent with wide side and the distance between described wide side are not less than 1/3rd of this narrow side edge length.Thereby avoided the radiator structure arranging to occur light leak.
Preferably, on every narrow side, be provided with a plurality of spaced sets radiator structure.Be convenient to Homogeneouslly-radiating.
Preferably, described radiator structure along the size of the length direction of the narrow side at its place between 0.5mm～1mm.Guarantee radiating effect, and avoided the radiator structure arranging to occur light leak.
Preferably, also comprise the diaphragm being attached on described shading rubber belt.Protection shading rubber belt, is convenient to the transportation of shading rubber belt.
Preferably, described diaphragm has the projection of extending shading rubber belt.Be convenient to, when pasting shading rubber belt, diaphragm be opened.
Preferably, described shading rubber belt is double-sided adhesive tape.Display panels and backlight module are bonded together.
The present invention also provides a kind of backlight module, and this backlight module has above-mentioned any the backlight module light-shielding structure on the glue frame that is attached to described backlight module, and the wide side of shading rubber belt is positioned at the light source side of described backlight module.
In technique scheme, the shading rubber belt that is provided with radiator structure by employing dispels the heat, and has reduced the temperature in backlight module, has improved the working environment of blooming piece, and then improved the blooming piece expanded by heating deformation that high temperature causes, improved the display effect of display unit.
The present invention also provides a kind of display unit, and this display unit comprises above-mentioned any backlight module and display panels, and described display panels is pasted and is connected with described shading rubber belt.
In technique scheme, the shading rubber belt that is provided with radiator structure by employing dispels the heat, and has reduced the temperature in backlight module, has improved the working environment of blooming piece, and then improved the blooming piece expanded by heating deformation that high temperature causes, improved the display effect of display unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of shading rubber belt of the prior art;
Fig. 2 is the use state reference map of shading rubber belt of the prior art;
The structural representation of the light-shielding structure with louvre that Fig. 3 provides for the embodiment of the present invention;
The structural representation of light-shielding structure with heat radiation breach that Fig. 4 provides for the embodiment of the present invention;
The structural representation with the light-shielding structure that disconnects mouth that Fig. 5 provides for the embodiment of the present invention;
The side view of the light-shielding structure with diaphragm that Fig. 6 provides for the embodiment of the present invention;
The use state reference map of the light-shielding structure that Fig. 7 provides for the embodiment of the present invention.
Reference numeral:
The narrow side of the wide side 12-of 10-shading rubber belt 11-
The 13-radiator structure 131-louvre 132-breach that dispels the heat
133-disconnects a mouthful 20-diaphragm 21-projection
30-glue frame 40-blooming piece 50-display panels
60-shading rubber belt (prior art)
The specific embodiment
In order to improve the radiating effect of display unit, improve the working environment of blooming piece, the embodiment of the present invention provides a kind of backlight module light-shielding structure, backlight module and display unit, in technical scheme of the present invention, by radiator structure being set on backlight module light-shielding structure, make light-shielding structure when can improving backlight module light leak, the dissipation of heat producing when backlight module can also be worked is gone out, improve the working environment of the blooming piece in backlight module, and then improved the display effect of display unit.For making the object, technical solutions and advantages of the present invention clearer, below take nonrestrictive embodiment and the present invention is described in further detail as example.
As shown in Fig. 3, Fig. 4 and Fig. 5, the structural representation of the light-shielding structure with louvre that Fig. 3 provides for the embodiment of the present invention; The structural representation of light-shielding structure with heat radiation breach that Fig. 4 provides for the embodiment of the present invention; The structural representation with the light-shielding structure that disconnects mouth that Fig. 5 provides for the embodiment of the present invention.Wherein, the wide side described in the present embodiment and narrow side relatively draw, wide side is the side of width maximum in all sides, and narrow side is the side that width is less than the width of wide side.
The embodiment of the present invention provides a kind of backlight module light-shielding structure, this light-shielding structure is the shading rubber belt 10 of shaped as frame, described shading rubber belt 10 comprises a wide side 11 and a plurality of narrow side 12, and is positioned on the narrow side of shading rubber belt 10 and is provided with at least one radiator structure 13.
On shading rubber belt 10 in above-described embodiment, radiator structure 13 is set, in use, as shown in Figure 7, shading rubber belt 10 attaches in the glue frame 30 with backlight module and is positioned at the top of blooming piece 40, and the wide side 11 of shading rubber belt 10 is positioned at the light source side of backlight module, avoid backlight module light leak, simultaneously, the radiator structure 13 arranging is positioned on shading rubber belt 10 on the narrow side 12 away from light source side, and light-shielding structure 13 can be arranged on a plurality of narrow sides 12 wherein any or a plurality of on, avoid radiator structure 13 light leaks that arrange, simultaneously, the heat of the light source generation of backlight module can be distributed by radiator structure 13, reduced the temperature in backlight module, improved the working environment of blooming piece 40, and then the blooming piece 40 expanded by heating deformations that high temperature causes have been improved, improved the display effect of display unit.And the number of the side of shading rubber belt 10 can be determined according to actual conditions, the glue frame 30 being mated is several limits shape, and shading rubber belt 10 is also several limits shape, as: triangle, quadrangle, pentagon etc., its shape can be determined according to the actual condition of production.
Radiator structure 13 wherein can adopt different structures, only need the dissipation of heat that backlight module inner light source can be produced to go out, continuation is with reference to figure 3, Fig. 4 and Fig. 5, the louvre 131 that radiator structure 13 shown in Fig. 3 adopts, should be understandable that, when adopting louvre 131, the shape of louvre 131 should not only limit to illustrated slotted eye, can also adopt other as the hole of the arbitrary shapes such as rectangular opening, circular port, irregularly-shaped hole; What the radiator structure 13 shown in Fig. 4 adopted is heat radiation breach 132, and the concrete shape of its heat radiation breach 132 also should not be limited to illustrated rectangular indentation, can be also the breach of the arbitrary shapes such as arc, V-arrangement, and its operation principle is identical, at this, will not enumerate.Fig. 5 shows radiator structure 13 and adopts disconnection mouth 133, now, the shading rubber belt 10 that surrounds shaped as frame can be regarded as and be comprised of multistage shading rubber belt 10, between adjacent shading rubber belt 10, form heat radiation gap and be described disconnection mouth 133, its concrete disconnection mouth 133 shapes are not limited only to the disconnection mouth 133 of illustrated rectangle, can also adopt the disconnection mouth 133 of other structures, its operation principle and effect are identical with the disconnection mouth 133 of employing rectangle, do not repeat them here, preferably, radiator structure 13 adopts and disconnects mouthful 133 structures, the radiator structure 13 of enumerating than other, be convenient to processing on the narrow side 12 of shading rubber belt 10.
In addition,, for the radiator structure 13 of further avoiding setting up causes the situation of light leak, the radiator structure 13 on the narrow side 12 adjacent with wide side 11 and the distance between described wide side 11 are not less than 1/3rd of these narrow side 12 length.Concrete, the radiator structure 13 arranging can be greater than arbitrarily for 1/3,1/2,3/4,4/5,2/3 etc. of narrow side 12 length adjacent with wide side 11 distance of these narrow side 12 length of 1/3 apart from the distance of the wide side 11 of shading rubber belt 10, thereby having guaranteed also has enough distance from light source from the nearest radiator structure 13 of wide side 11, thereby avoid occurring that light leak appears in the radiator structure 13 of setting up.
Further, described radiator structure 13 along the size of the length direction of the narrow side 12 at its place between 0.5mm～1mm.Further guaranteed that the radiator structure 13 of setting up there will not be the phenomenon of light leak, concrete light-shielding structure in the size along narrow frame length direction, can be that 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm etc. are arbitrarily between the length of 0.5mm～1mm.Wherein this size is not less than 0.5mm and has guaranteed that radiator structure 13 can have enough spaces to dispel the heat, and meanwhile, this size is not more than 1mm and has guaranteed that radiator structure 13 can be not long in the size of this direction and cause light leak.
Radiator structure 13 in above-described embodiment can arrange according to actual situation different numbers, continuation is with reference to figure 3 and Fig. 4, wherein, Fig. 3 shows the shading rubber belt 10 that two radiator structures 13 are set on every side, Fig. 4 and Fig. 5 show the shading rubber belt 10 that every narrow side 12 arranges a radiator structure 13, the concrete number of the radiator structure 13 arranging on every narrow side 12 is unrestricted, can select according to actual conditions the number of the radiator structure 13 of setting on every narrow side 12.As a kind of preferred structure, being arranged on every radiator structure 13 on narrow side 12 equidistantly distributes, thereby be convenient to the processing of radiator structure 13, simultaneously, equally spaced radiator structure 13, the heat producing can be distributed uniformly, avoid the inhomogeneous also too high situation of local temperature that causes of blooming piece 40 heat radiations in backlight module.
With reference to figure 5 and Fig. 6, Fig. 6 shows the structure of the light-shielding structure with diaphragm 20 in the lump.Contaminated for fear of the shading rubber belt 10 of producing, on shading rubber belt 10, be pasted with diaphragm 20.By diaphragm 20, can avoid the shading rubber belt 10 produced contaminated.Preferably, described diaphragm 20 has the projection 21 of extending shading rubber belt 10.When attaching shading rubber belt 10; shading rubber belt 10 can be attached on the glue frame 30 of backlight module; because the projection 21 of diaphragm 20 is extended shading rubber belt 10 outsides, therefore, can by dropping projection 21, diaphragm 20 be taken off from shading rubber belt 10 very easily.When the radiator structure 13 of shading rubber belt 10 adopts disconnection mouth 133 structure; the shading rubber belt 10 of shaped as frame is actually several sections of shading rubber belts 10 and surrounds; therefore, by diaphragm 20, can make several sections of shading rubber belts 10 surround shaped as frame, be convenient on glue frame 30 that shading rubber belt 10 attaches to backlight module.
Shading rubber belt 10 in above-described embodiment is double-sided adhesive tape.Continuation is with reference to figure 7, and in use, the one side of double-sided adhesive tape is bonding with described glue frame 30, and another side and display panels 50 are bonding, thereby can fixer LCD panel 50.Strengthened the fixing of display panels 50.
In order further to improve the shaded effect of shading rubber belt 10, at shading rubber belt 10, towards the one side of backlight module light source side, be provided with reflecting layer, can be by the light reflection that is irradiated to shading rubber belt 10 to the reflector plate in LGP or backboard by reflecting layer, avoid the loss of light, improved the optical effect of backlight module.
The embodiment of the present invention also provides a kind of backlight module, and this backlight module has above-mentioned any the backlight module light-shielding structure on the glue frame 30 that is attached to described backlight module, and the wide side 11 of described shading rubber belt 10 is positioned at the light source side of described backlight module.Wide side 11 by shading rubber belt 10 is positioned at light source side, thereby improve the light leak situation of backlight module, simultaneously, the dissipation of heat light source of backlight module being produced by the radiator structure 13 being arranged on shading rubber belt 10 is gone out, reduced the temperature in backlight module, improve the working environment of blooming piece 40, and then improved the blooming piece 40 expanded by heating deformations that high temperature causes, improved the display effect of display unit.
The embodiment of the present invention also provides a kind of display unit, this display unit is the common small size display unit such as mobile phone, flat board, this display unit comprises above-mentioned any backlight module and display panels, and described display panels is pasted and is connected with described shading rubber belt 10.The shading rubber belt 10 that is provided with radiator structure 13 by employing is gone out the dissipation of heat of the light source generation of backlight module, reduced the temperature in backlight module, improved the working environment of blooming piece 40, and then improved the blooming piece 40 expanded by heating deformations that high temperature causes, improved the display effect of display unit.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (10)

1. a backlight module light-shielding structure, is characterized in that, the shading rubber belt that described light-shielding structure is shaped as frame, and described shading rubber belt comprises a wide side and a plurality of narrow side, and is positioned on the narrow side of shading rubber belt and is provided with at least one radiator structure.
2. backlight module light-shielding structure as claimed in claim 1, is characterized in that, described radiator structure is louvre, heat radiation breach or disconnects mouth.
3. backlight module light-shielding structure as claimed in claim 2, is characterized in that, the radiator structure on the narrow side adjacent with wide side and the distance between described wide side are not less than 1/3rd of this narrow side edge length.
4. backlight module light-shielding structure as claimed in claim 3, is characterized in that, on every narrow side, be provided with a plurality of spaced sets radiator structure.
5. backlight module light-shielding structure as claimed in claim 4, is characterized in that, described radiator structure along the size of the length direction of the narrow side at its place between 0.5mm～1mm.
6. backlight module light-shielding structure as claimed in claim 1, is characterized in that, also comprises the diaphragm being attached on described shading rubber belt.
7. backlight module light-shielding structure as claimed in claim 6, is characterized in that, described diaphragm has the projection of extending shading rubber belt.
8. the backlight module light-shielding structure as described in claim 1～7 any one, is characterized in that, described shading rubber belt is double-sided adhesive tape.
9. a backlight module, is characterized in that, this backlight module has the backlight module light-shielding structure as described in claim 1～8 any one on the glue frame that is attached to described backlight module, and the wide side of shading rubber belt is positioned at the light source side of described backlight module.
10. a display unit, is characterized in that, comprises backlight module as claimed in claim 9 and display panels, and described display panels is pasted and is connected with described shading rubber belt.
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CN104035219A (en) * 2014-05-30 2014-09-10 京东方科技集团股份有限公司 Display device
CN104749809A (en) * 2015-04-03 2015-07-01 业成光电（深圳）有限公司 Liquid crystal display module
CN104777633A (en) * 2015-02-11 2015-07-15 深圳市华星光电技术有限公司 Adhesive tape, backlight module and liquid crystal display device
CN105278138A (en) * 2014-06-11 2016-01-27 株式会社日本显示器 Liquid crystal display device
CN105467683A (en) * 2016-02-01 2016-04-06 深圳市山本光电股份有限公司 Shading glue splicing structure
CN105546403A (en) * 2014-10-23 2016-05-04 美蓓亚株式会社 Planar illumination device, liquid crystal display apparatus, and method of assembling same
WO2016065791A1 (en) * 2014-10-29 2016-05-06 京东方科技集团股份有限公司 Optical film, backlight module, and liquid crystal display device
CN105757537A (en) * 2016-03-25 2016-07-13 京东方科技集团股份有限公司 Backlight module and display device
CN105915683A (en) * 2016-04-27 2016-08-31 厦门京东方电子有限公司 Side-entry backlight module and display apparatus
CN106200129A (en) * 2016-09-30 2016-12-07 京东方科技集团股份有限公司 Backlight module and manufacture method, display module and annular shading rubber belt
WO2017067254A1 (en) * 2015-10-21 2017-04-27 京东方科技集团股份有限公司 Backlight module, assembly method therefor, and display device
CN107064162A (en) * 2017-06-20 2017-08-18 芜湖夏鑫新型材料科技有限公司 The rotation platform of contrast is examined for diaphragm
CN104534348B (en) * 2014-11-28 2017-12-22 武汉天马微电子有限公司 Backlight module and display device
CN108196399A (en) * 2018-01-12 2018-06-22 京东方科技集团股份有限公司 A kind of screening glass and backlight
US10191572B2 (en) 2016-07-08 2019-01-29 Xiamen Tianma Micro-Electronics Co., Ltd. Display module and display device
CN109377869A (en) * 2018-10-18 2019-02-22 信利光电股份有限公司 A kind of applying method and display module of backlight
US10520664B2 (en) 2016-03-25 2019-12-31 Boe Technology Group Co., Ltd. Backlight module and display device
CN111413820A (en) * 2020-04-26 2020-07-14 武汉华星光电技术有限公司 Display panel and display device
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WO2022183746A1 (en) * 2021-03-05 2022-09-09 京东方科技集团股份有限公司 Backlight module and method for manufacturing same, and display device

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CN105278138A (en) * 2014-06-11 2016-01-27 株式会社日本显示器 Liquid crystal display device
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WO2016065791A1 (en) * 2014-10-29 2016-05-06 京东方科技集团股份有限公司 Optical film, backlight module, and liquid crystal display device
US10120208B2 (en) 2014-10-29 2018-11-06 Boe Technology Group Co., Ltd. Optical film, backlight module and liquid crystal display device
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CN109377869A (en) * 2018-10-18 2019-02-22 信利光电股份有限公司 A kind of applying method and display module of backlight
CN114616517A (en) * 2019-10-29 2022-06-10 凸版印刷株式会社 Liquid crystal display device having a plurality of pixel electrodes
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