CN205299262U - Backlight module and display equipment - Google Patents
Backlight module and display equipment Download PDFInfo
- Publication number
- CN205299262U CN205299262U CN201521135290.7U CN201521135290U CN205299262U CN 205299262 U CN205299262 U CN 205299262U CN 201521135290 U CN201521135290 U CN 201521135290U CN 205299262 U CN205299262 U CN 205299262U
- Authority
- CN
- China
- Prior art keywords
- colloid
- glue frame
- guide plate
- backlight module
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003292 glue Substances 0.000 claims abstract description 99
- 239000000084 colloidal system Substances 0.000 claims abstract description 89
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000012788 optical film Substances 0.000 claims abstract description 19
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000010408 film Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 abstract 7
- 235000009537 plain noodles Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a backlight unit, including gluing the frame, the light guide plate of holding in gluing the frame, the setting goes out the optical film layer on plain noodles at the light guide plate, the setting is at the reflectance coating of light guide plate bottom surface, and the shading is glued, it includes the top surface to glue the frame, the bottom surface, medial surface and lateral surface, the shading is glued including first colloid, the second colloid, third colloid and shading portion, the second colloid is connected first, between the third colloid, first colloid bonds with the top surface and the marginal of optical film layer of gluing the frame, the second colloid bonds with the lateral surface of gluing the frame, shading portion sets up the surface at the second colloid, the third colloid bonds with the bottom surface and the marginal of reflectance coating of gluing the frame. The utility model provides a display device. The utility model discloses a with shading glue to gluing the frame processing of borduring to lateral surface gluing the frame sets up shading portion, even fraction light can also can be absorbed and blockked, therefore can avoid leak optical phenomena emergence through the bottom surface of gluey frame or the clearance of top surface position department by shading portion.
Description
Technical field
This utility model relates to field of display devices, particularly relates to a kind of backlight module being applied to display device and has the display device of this backlight module.
Background technology
Along with people improve constantly for the requirement of the aesthetic of the display device such as mobile phone, panel computer and comfortableness, the design of narrow frame is becoming increasingly popular. For adapting to the demand of narrow frame, the glue frame being used for the elements such as lightguide plate fixing is designed to without barrier wall structure by the backlight module in existing a kind of mobile phone, though this can to a certain degree reduce the width of frame, but also correspondence brings the defect easily producing light leak from glue frame sidepiece.
Utility model content
Based on this, it is necessary to for the problem of the easy light leak of backlight module, it is provided that a kind of backlight module preventing light leak and there is the display device of this backlight module.
A kind of backlight module, including glue frame, it is contained in the light guide plate in glue frame, it is arranged on the optical film of light guide plate exiting surface, it is arranged on the reflectance coating of light guide plate reflecting surface, and shading glue, described glue frame includes end face, bottom surface, medial surface and lateral surface, described shading glue includes the first colloid, second colloid, 3rd colloid and light shielding part, described second colloid is connected between the first colloid and the 3rd colloid, the end face of described first colloid and described glue frame and the marginal adhesion of described optical film, described second colloid is bonding with the lateral surface of described glue frame, described light shielding part is arranged on the outer surface of described second colloid, the bottom surface of described 3rd colloid and described glue frame and the marginal adhesion of described reflectance coating.
Wherein in an embodiment, the first colloid of described shading glue, the second colloid, the 3rd colloid integrally extend to form, and all include base layer and are positioned at the viscous layer of base layer two apparent surface.
Wherein in an embodiment, a viscous layer of described second colloid is bonding with the lateral surface of described glue frame, and another viscous layer of described second colloid is bonding with described light shielding part.
Wherein in an embodiment, described reflectance coating extends beyond the lateral margin of described light guide plate, one viscous layer of described 3rd colloid is bonding with the bottom surface of described glue frame, and another viscous layer of described 3rd colloid extends beyond described light guide plate and bonding towards the surface of the bottom surface of described glue frame with described reflectance coating.
Wherein in an embodiment, a viscous layer of described first colloid is bonding with the end face of described glue frame and described optical film, with one, another viscous layer of described first colloid is for showing that module is bonding.
Wherein in an embodiment, described optical film includes diffusion barrier and anti-reflection film.
Wherein in an embodiment, the lateral surface of described glue frame and the end face of described glue frame, junction, bottom surface are respectively formed arcuate structure.
Wherein in an embodiment, described light guide plate is contained in described medial surface and encloses in the cavity set, and described light guide plate includes the side being connected between exiting surface and reflecting surface, and all sites of described glue frame is all outside the side of light guide plate.
A kind of display device, including shell, house backlight module in the enclosure, and the display module being combined with backlight module, it is characterized in that, described backlight module is any one backlight module above-mentioned, the end face of glue frame described in one side bonds of described first colloid and the edge of described optical film, the bottom surface of the bonding described display module of opposite side of described first colloid.
This utility model is by carrying out bound edge process by shading glue to glue frame, and light shielding part is set at the lateral surface of glue frame, even if fraction light can pass through the bottom surface of glue frame or the gap at top side location place, it is possible to is absorbed by light shielding part and is blocked, thus light leakage phenomena can be avoided to occur.
Accompanying drawing explanation
The schematic cross-section of the part-structure of the backlight module that Fig. 1 provides for this utility model one embodiment.
Fig. 2 is the part-structure schematic diagram of the shading glue adopted in backlight module shown in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of backlight module that this utility model one embodiment provides can be applicable in the display device such as mobile phone, panel computer. Described backlight module includes glue frame 10, be contained in glue frame 10 light guide plate 20, the optical film 50 being arranged on light guide plate 20 exiting surface, be arranged on the reflectance coating 30 of light guide plate 20 reflecting surface and shading glue 40.
Glue frame 10 is for structures such as lightguide plate fixings 20. Glue frame 10 is generally made up and in the shape of a frame of plastic material. In one embodiment, described glue frame 10 includes end face 101, bottom surface 102, medial surface 103 and lateral surface 104. The cross section of glue frame 10 is in rectangle substantially or square. Medial surface 103 encloses and sets formation cavity, and described light guide plate 20 is contained in the cavity that described medial surface 103 is formed.
In one embodiment, the lateral surface 104 of described glue frame 10 is respectively formed arcuate structure 100 with the end face 101 of described glue frame 10, junction, bottom surface 102. This arcuate structure 100 is formed round and smooth chamfering by the described lateral surface 104 of processing form with the junction of end face 101 and the junction of described lateral surface 104 and bottom surface 102.
Described light guide plate 20 is arranged in glue frame 10. Light guide plate 20 includes end face 201, relative bottom surface 202 and connects the side 203 of end face 201 and bottom surface 202. The side 203 of described light guide plate 20 is relative with the medial surface 103 of glue frame 10 and has small spacing between the two, this spacing is for allowing the rigging error of light guide plate 20 and glue frame 10, it is possible to make light guide plate 20 and associated components will not make to support with glue frame 10 when being heated generation micro-strain and produce excessive stress. Described light guide plate 20 is for carrying out leaded light to the light source (such as LED, not shown) of backlight module. Light source is generally arranged at wherein certain one side 203 position of multiple sides 203 of light guide plate 20, this one side 203 makes light can enter to inject light guide plate 20 from this side 203 as incidence surface to be penetrated by end face 202 again, forms the side entrance back module that industry is known altogether.End face 202 is as the exiting surface of this light guide plate 20.
In one embodiment, the end face 101 of described glue frame 10 and bottom surface 102 are respectively positioned on outside described light guide plate 20. In other words, all sites of described glue frame 10 is all outside the side 203 of light guide plate 20, and described glue frame 10 is formed without barrier wall structure, such that it is able to thinning and the glue frame 10 that narrows, with the narrow frame design of the display device of this backlight module of fit applications.
Described reflectance coating 30 is arranged on the bottom surface 202 of described light guide plate 20. The light that light source can be sent by bottom surface 202 serves as reflecting surface towards the reflection of exiting surface direction. Described reflectance coating 30 does reflection further for the some light of the bottom surface 202 by penetrating light guide plate 20, makes the end face 201 that this some light can be turned back to light guide plate 20 penetrate, to increase the light utilization of light source. Described reflectance coating 30 extends beyond the lateral margin of light guide plate 20 and dependency structure by shading glue 40 is bonding with glue frame 10, and this will below with further describing.
In certain embodiments, described optical film 50 is also contained in the cavity that glue frame 10 is formed. Described optical film 50 includes diffusion barrier and anti-reflection film. The light penetrated by light guide plate 20 end face 201 is broken up completely through the diffusion of diffusion barrier, makes light form uniform area source. Anti-reflection film can make light intensity in particular directions be enhanced. Diffusion barrier and anti-reflection film all can be arranged more than one layer. In certain embodiments, the thickness sum of light guide plate 20 and optical film 50 is substantially equal to the thickness of described glue frame 10 so that described optical film 50 can flush with the end face 101 of glue frame 10.
Most light of the light source of backlight module penetrates from the end face 201 of light guide plate 20 through the reflection of the refraction of light guide plate 20, reflection and reflectance coating 30. Side 203 that fraction light can pass light guide plate 20 as shown by the arrows in Figure 1 the minim gap place arriving between glue frame 10 and reflectance coating 30, thus passing this gap and causing light leak. This utility model, for stoping this kind of light leak, have employed the setting that shading glue 40 combines with glue frame 10, light guide plate 20.
Described shading glue 40 includes the first colloid the 401, second colloid the 402, the 3rd colloid 403 and light shielding part 42, described second colloid 402 is connected between the first colloid 401 and the 3rd colloid 403, described first colloid 401 is at least some of bonding with the end face 101 of glue frame 10, at least another part is bonding with the end face 201 of light guide plate 20, specifically with the marginal adhesion of the optical film 50 on light guide plate 20 end face 201. Described second colloid 402 is bonding with the lateral surface 104 of described glue frame 10, and described light shielding part 42 is arranged on the outer surface of described second colloid 402, the bottom surface 102 of described 3rd colloid 403 and described glue frame 10 and the marginal adhesion of described reflectance coating 30.
In one embodiment, first colloid the 401, second colloid the 402, the 3rd colloid 403 of described shading glue 40 also constitutes frame-shaped, wherein the first colloid 401 is positioned at the edge of frame like structure, 3rd colloid 403 is positioned at the outer of frame like structure, and the second colloid 402 is between the first colloid 401 and the 3rd colloid 403. Described light shielding part 42 can also be in the shape of a frame, and bonding it is arranged on the position corresponding with the second colloid 402, being appreciated that light shielding part 42 does not limit is frame-shaped, it is also possible to according to concrete shading need and be arranged on the second colloid 402 in the shape of a frame some, certain two or certain three frame place.
This utility model is by carrying out bound edge process by shading glue 40 to glue frame 10, and light shielding part 42 is set at the lateral surface 104 of glue frame 10, even if fraction light can pass through the bottom surface 102 of glue frame 10 or the gap of end face 101 position, also can be absorbed by light shielding part 42 and be blocked, thus light leakage phenomena can be avoided to occur.
With reference to Fig. 1 and Fig. 2, in an embodiment, in the middle part of described shading glue 40, it is provided with mean for the loophole 400 of the light injection that light guide plate 20 is derived. First colloid the 401, second colloid the 402, the 3rd colloid 403 of described shading glue 40 integrally extends to form, time not with glue frame 10 structural bond such as grade, described shading glue 40 is in shaped as frame, time bonding with glue frame 10, first colloid 401 of shading glue 40 is bonded in glue frame 10 and the top of reflectance coating 30, second colloid 402 bends and is bonded in the sidepiece of glue frame 10, and the 3rd colloid 403 bends and is bonded in the bottom of glue frame 10. First colloid the 401, second colloid the 402, the 3rd colloid 403 of described shading glue 40 all includes base layer 410 and is positioned at the viscous layer 411,413 of 410 liang of apparent surfaces of base layer.
Base layer 410 is generally made up of black PET material, and base layer 410 is light tight. Viscous layer 411,413 is generally made up of translucent materials such as Optical transparent adhesive. Owing to viscous layer 411,413 has light transmission, this utility model by arranging light shielding part 42 in shading glue 40, to avoid light to spill from this viscous layer 411,413.
One viscous layer 413 of described first colloid 401 is bonding with the end face 101 of described glue frame 10 and described optical film 50, with one, another viscous layer 411 of described first colloid 401 is for showing that module (not shown) is bonding.
One viscous layer 413 of described second colloid 402 is bonding with the lateral surface 104 of described glue frame 10, and another viscous layer 411 of described second colloid 402 is bonding with described light shielding part 42. Further, described light shielding part 42 covers described arcuate structure 100 region, it is possible to be better protected from producing light leakage phenomena.
One viscous layer 413 of described 3rd colloid 403 is bonding with the bottom surface 102 of described glue frame 10, and another viscous layer 411 of described 3rd colloid 403 extends beyond described light guide plate 20 and bonding towards the surface of the bottom surface 102 of described glue frame 10 with described reflectance coating 30. Owing to assembling the existence of equal error, between reflectance coating 30 and light shielding part 42, inevitably there is certain spacing. Though the position extending light shielding part 42 to the 3rd colloid 403 correspondence can be passed through, reflectance coating 30 is made to cover light shielding part 42 to eliminate this spacing, but this arranges and the bonding site area of reflectance coating 30 and the 3rd colloid 403 can be made to reduce, and makes the firm performance of reflectance coating 30 reduce.
This utility model also provides for a kind of display device with above-mentioned backlight module. Described display device includes shell 60 and is housed in the backlight module in above-mentioned shell 60, and the display module being combined with backlight module. Bonding and the backlight module of underrun first colloid 401 of described display module is formed and combines, and backlight module is for providing illumination for display module.
This utility model by making the structural design of uniqueness to shading glue 40, it is to avoid the light leakage phenomena produced because of the light transmitting property of shading glue 40 self. Specifically, described light shielding part 42 is arranged on glue frame 10 and outward glue frame 10 is carried out bound edge process, even if the side 203 of fraction light therethrough light guide plate 20 arrives the end face 101 of glue frame 10 or the gap location of bottom surface 102, also can be blocked portion 42 and be absorbed. Yet further, if still having the gap between small part light therethrough light shielding part 42 as shown in Figure 1 and reflectance coating 30, also can be reflected by shell 60 and being absorbed further to the light shielding part 42 side towards shell 60. Therefore arranged by this kind, can more comprehensively reduce light and overflow probability, it is prevented that produce light leakage phenomena.
Described light shielding part 42 is arranged between glue frame 10 and shell 60, may also operate as the effect preventing the associated components of shading glue 40 from bonding on shell 60 simultaneously.
It is to be appreciated that above-mentioned display module can also integrated touch inductive module in the inner, or arrange with Touch Screen and form the display device of type such as such as smart mobile phone, panel computer etc. with touch controllable function.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope. It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model. Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (9)
1. a backlight module, including glue frame, it is contained in the light guide plate in glue frame, it is arranged on the optical film of light guide plate exiting surface, it is arranged on the reflectance coating of light guide plate reflecting surface, and shading glue, described glue frame includes end face, bottom surface, medial surface and lateral surface, it is characterized in that, described shading glue includes the first colloid, second colloid, 3rd colloid and light shielding part, described second colloid is connected between the first colloid and the 3rd colloid, the end face of described first colloid and described glue frame and the marginal adhesion of described optical film, described second colloid is bonding with the lateral surface of described glue frame, described light shielding part is arranged on the outer surface of described second colloid, the bottom surface of described 3rd colloid and described glue frame and the marginal adhesion of described reflectance coating.
2. backlight module according to claim 1, it is characterised in that the first colloid of described shading glue, the second colloid, the 3rd colloid integrally extend to form, all includes base layer and is positioned at the viscous layer of base layer two apparent surface.
3. backlight module according to claim 2 a, it is characterised in that viscous layer of described second colloid is bonding with the lateral surface of described glue frame, and another viscous layer of described second colloid is bonding with described light shielding part.
4. backlight module according to claim 2, it is characterized in that, described reflectance coating extends beyond the lateral margin of described light guide plate, one viscous layer of described 3rd colloid is bonding with the bottom surface of described glue frame, and another viscous layer of described 3rd colloid extends beyond described light guide plate and bonding towards the surface of the bottom surface of described glue frame with described reflectance coating.
5. backlight module according to claim 2 a, it is characterised in that viscous layer of described first colloid is bonding with the end face of described glue frame and described optical film, with one, another viscous layer of described first colloid is for showing that module is bonding.
6. backlight module according to claim 1, it is characterised in that described optical film includes diffusion barrier and anti-reflection film.
7. backlight module according to claim 1, it is characterised in that the lateral surface of described glue frame and the end face of described glue frame, junction, bottom surface are respectively formed arcuate structure.
8. backlight module according to claim 1, it is characterized in that, described light guide plate is contained in described medial surface and encloses in the cavity set, and described light guide plate includes the side being connected between exiting surface and reflecting surface, and all sites of described glue frame is all outside the side of light guide plate.
9. a display device, including shell, house backlight module in the enclosure, and the display module being combined with backlight module, it is characterized in that, described backlight module is the backlight module in claim 1-8 item described in any one, the end face of glue frame described in one side bonds of described first colloid and the edge of described optical film, the bottom surface of the bonding described display module of opposite side of described first colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135290.7U CN205299262U (en) | 2015-12-29 | 2015-12-29 | Backlight module and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135290.7U CN205299262U (en) | 2015-12-29 | 2015-12-29 | Backlight module and display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205299262U true CN205299262U (en) | 2016-06-08 |
Family
ID=56469100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521135290.7U Expired - Fee Related CN205299262U (en) | 2015-12-29 | 2015-12-29 | Backlight module and display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205299262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929599A (en) * | 2016-06-16 | 2016-09-07 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN112859448A (en) * | 2021-03-17 | 2021-05-28 | 重庆京东方显示照明有限公司 | Adhesive tape, backlight module, display device and preparation method of backlight module |
-
2015
- 2015-12-29 CN CN201521135290.7U patent/CN205299262U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929599A (en) * | 2016-06-16 | 2016-09-07 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| WO2017215061A1 (en) * | 2016-06-16 | 2017-12-21 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN105929599B (en) * | 2016-06-16 | 2019-06-25 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN112859448A (en) * | 2021-03-17 | 2021-05-28 | 重庆京东方显示照明有限公司 | Adhesive tape, backlight module, display device and preparation method of backlight module |
| CN112859448B (en) * | 2021-03-17 | 2023-03-14 | 重庆京东方显示照明有限公司 | Adhesive tape, backlight module, display device and preparation method of backlight module |
| US11709311B2 (en) | 2021-03-17 | 2023-07-25 | Chongqing Boe Display Lighting Co., Ltd. | Adhesive tape, backlight module, display device and method for manufacturing backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee after: CHINA DISPLAY OPTOELECTRONICS TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee before: TCL DISPLAY TECHNOLOGY (HUIZHOU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |