CN104832841A - Backlight unit and display device with backlight unit - Google Patents
Backlight unit and display device with backlight unit Download PDFInfo
- Publication number
- CN104832841A CN104832841A CN201510256818.4A CN201510256818A CN104832841A CN 104832841 A CN104832841 A CN 104832841A CN 201510256818 A CN201510256818 A CN 201510256818A CN 104832841 A CN104832841 A CN 104832841A
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- CN
- China
- Prior art keywords
- prisms
- layers
- backlight
- back light
- light unit
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- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a backlight unit. The backlight unit comprises a backlight source and an optical diaphragm arranged on the light outlet face of the backlight source. The optical diaphragm is fully attached to the light outlet face of the backlight source. The invention further discloses a display device with the backlight unit. The optical diaphragm is fully attached to the light outlet face of the backlight unit, the optical diaphragm and the backlight unit are of an integral structure, even when the backlight unit is at high temperature in the working process, or a product is affected with damp, the optical diaphragm can be firmly attached and does not warp or deform, the anti-deformation capacity of the optical diaphragm is improved, and the light guide effect and the display effect are guaranteed. Meanwhile, due to the fact that the portion between a diffusion sheet layer and a prism layer of the optical diaphragm is filled with optical adhesive, the anti-scratching performance of the optical diaphragm is obviously improved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of back light unit and there is the display unit of this back light unit.
Background technology
Along with the develop rapidly of mobile consumption electronic product, display unit is widely used in the products such as computer, mobile phone and TV, consumer is also more and more higher for the requirement of product, not only requires that display unit has good serviceability, also requires that it has very thin thickness.
Because the thickness of product is more and more thinner, make used blooming piece in the design also more and more thinner, usually between 0.05mm ~ 0.1mm.Thinner diaphragm is heated in use to make moist and is easy to distortion, thus causes the corresponding site of product occur warpage or form undulating pleats, and have a strong impact on the display effect of display unit, user will have a greatly reduced quality for the impression of product.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides a kind of back light unit and have the display unit of this back light unit, its blooming piece or can not make moist and warpage or distortion occur because of heating in product use procedure, ensure that backlight and display effect.
In order to realize above-mentioned object, present invention employs following technical scheme:
A kind of back light unit, comprise backlight and be located at the blooming piece of exiting surface of described backlight, described blooming piece fits on the exiting surface of described backlight entirely.
Wherein, described blooming piece is pasted onto on described backlight by the first optical cement layer.
Wherein, the bottom surface of described backlight is provided with reflector plate, is provided with the second optical cement layer between described reflector plate and described backlight.
Wherein, described blooming piece comprise lower floor diffuser layer, be located at the first layers of prisms in described diffuser layer and the second layers of prisms successively from bottom to top, be filled with the 3rd optical cement layer between described diffuser layer and described first layers of prisms, between described first layers of prisms and described second layers of prisms, be filled with the 4th optical cement layer.
Wherein, the upper surface of described first layers of prisms is serrated face, and described 4th optical cement layer is filled in the serrated face of described first layers of prisms.
Or the lower surface of described first layers of prisms is serrated face, described 3rd optical cement layer is filled in the serrated face of described first layers of prisms.
Or described blooming piece also comprises at least one the Rhizoma Sparganii mirror layer be located in described second layers of prisms, between described second layers of prisms and described Rhizoma Sparganii mirror layer, be filled with the 5th optical cement layer.
Present invention also offers a kind of display unit, comprise display floater and above-mentioned back light unit, described display floater is pasted on described back light unit by shading rubber belt.
Blooming piece of the present invention fits on the exiting surface of back light unit entirely, blooming piece and back light unit is made to form overall structure, even if back light unit produces high temperature in the course of work, or blooming piece also can secure fit and warpage or distortion do not occur when product makes moist, improve the non-deformability of blooming piece, ensure that light guide effect and display effect.Meanwhile, owing to adopting optical cement to fill between the diffuser layer of blooming piece and layers of prisms, the scratch resistance performance of blooming piece significantly promotes.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the display unit of the embodiment of the present invention 1.
Fig. 2 is the cross-sectional view of the display unit of the embodiment of the present invention 2.
Fig. 3 is the cross-sectional view of the display unit of the embodiment of the present invention 3.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
Consult Fig. 1, display unit of the present invention comprises back light unit and display floater 40, and display floater is pasted on back light unit by the shading rubber belt K being located at bottom surface surrounding non-display area.
Back light unit comprises the blooming piece 20 of the backlight 10 be made up of light guide plate and LED light source and the exiting surface being located at backlight 10, blooming piece 20 fits on the exiting surface of backlight 10 entirely, the two is made to form an entirety, even if blooming piece 20 is by high temperature action or when making moist in the back light unit course of work, blooming piece 20 still can be reliably close on the exiting surface of backlight 10, avoids blooming piece 20 and warpage or deformation effect display unit occur to bring into normal play performance.
Particularly, blooming piece 20 is pasted onto on backlight 10 by the first optical cement layer 1, and the first optical cement layer 1 can be the adhesive material that the light transmission such as organic silica gel, acrylic type resin and unsaturated polyester (UP), polyurethane, epoxy resin is excellent.The bottom surface of backlight 10 is also provided with reflector plate 30, is combined between reflector plate 30 with backlight 10 by the second optical cement layer 2.
Blooming piece 20 comprise lower floor diffuser layer 21, be located at the first layers of prisms 22 and the second layers of prisms 23 in diffuser layer 21 successively from bottom to top.Diffuser layer 21 is by the high diffusion sheet base material 21a (as PET, PC, PMMA etc.) of light transmission rate and on diffusion sheet base material 21a, add diffusion particle material form.Diffuser layer 21 is evenly projected to the first layers of prisms 22 after concentrating for the light injected by backlight 10, the planar light that first layers of prisms 22 is comparatively concentrated for the planar light of comparatively dispersing being converted into brightness ratio, and the light that the second layers of prisms 23 can be injected the first layers of prisms 22 carries out light-splitting processing, strengthen light-emitting uniformity and brightness.
Be filled with the 3rd optical cement layer 3 between diffuser layer 21 and the first layers of prisms 22, increase blooming piece 20 bulk strength and can avoid blooming piece 20 that lamination occurs.The 4th optical cement layer 4 is filled with between first layers of prisms 22 and the second layers of prisms 23; the multi-layer compound structure of blooming piece 20 forms an entirety, can the structure of available protecting first layers of prisms 22, promotes the non-deformability of thin optical diaphragm 20; meanwhile, its scratch resistance performance is also better corresponding.
The upper surface of first layers of prisms 22 of the present embodiment is serrated face, and the 4th optical cement layer 4 is filled in the serrated face of this first layers of prisms 22, further increases the bond strength between the first layers of prisms 22 and the second layers of prisms 23.
Embodiment 2
As shown in Figure 2, as different from Example 1, the lower surface of first layers of prisms 22 of the present embodiment is serrated face, and the 3rd optical cement layer 3 is filled in the serrated face of the first layers of prisms 22.First layers of prisms 22 of the present embodiment compares the spotlight effect of embodiment 1 better, and the picture display brightness of display unit is promoted further.
Embodiment 3
As shown in Figure 3, also at least comprise on the second layers of prisms 23 between Rhizoma Sparganii mirror layer 24, the second layers of prisms 23 and Rhizoma Sparganii mirror layer 24 unlike, the blooming piece 20 of the present embodiment with embodiment 1 and 2 and be filled with the 5th optical cement layer 5.Second layers of prisms 23 of the present embodiment and the serrated face of Rhizoma Sparganii mirror layer 24 are all located at upper surface, between the serrated face that the 5th optical cement layer 5 is filled in the second layers of prisms 23 and Rhizoma Sparganii mirror layer 24 lower surface.By increasing the quantity of layers of prisms in blooming piece 20, the back light unit bright dipping of the present embodiment evenly, the uniformity of picture display is better.
The above is only the detailed description of the invention of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (8)
1. a back light unit, it is characterized in that, comprise backlight (10) and be located at the blooming piece (20) of exiting surface of described backlight (10), described blooming piece (20) fits on the exiting surface of described backlight (10) entirely.
2. back light unit according to claim 1, is characterized in that, described blooming piece (20) is pasted onto on described backlight (10) by the first optical cement layer (1).
3. back light unit according to claim 1, it is characterized in that, the bottom surface of described backlight (10) is provided with reflector plate (30), is provided with the second optical cement layer (2) between described reflector plate (30) and described backlight (10).
4. according to the arbitrary described back light unit of claim 1-3, it is characterized in that, described blooming piece (20) comprise lower floor diffuser layer (21), be located at the first layers of prisms (22) in described diffuser layer (21) and the second layers of prisms (23) successively from bottom to top, be filled with the 3rd optical cement layer (3) between described diffuser layer (21) and described first layers of prisms (22), between described first layers of prisms (22) and described second layers of prisms (23), be filled with the 4th optical cement layer (4).
5. back light unit according to claim 4, is characterized in that, the upper surface of described first layers of prisms (22) is serrated face, and described 4th optical cement layer (4) is filled in the serrated face of described first layers of prisms (22).
6. back light unit according to claim 4, is characterized in that, the lower surface of described first layers of prisms (22) is serrated face, and described 3rd optical cement layer (3) is filled in the serrated face of described first layers of prisms (22).
7. back light unit according to claim 4, it is characterized in that, described blooming piece (20) also comprises at least one the Rhizoma Sparganii mirror layer (24) be located on described second layers of prisms (23), is filled with the 5th optical cement layer (5) between described second layers of prisms (23) and described Rhizoma Sparganii mirror layer (24).
8. a display unit, is characterized in that, comprise display floater and the arbitrary described back light unit of claim 1-7, described display floater is pasted on described back light unit by shading rubber belt (K).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256818.4A CN104832841A (en) | 2015-05-19 | 2015-05-19 | Backlight unit and display device with backlight unit |
| PCT/CN2015/079621 WO2016183856A1 (en) | 2015-05-19 | 2015-05-22 | Backlight unit and display device having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256818.4A CN104832841A (en) | 2015-05-19 | 2015-05-19 | Backlight unit and display device with backlight unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104832841A true CN104832841A (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510256818.4A Pending CN104832841A (en) | 2015-05-19 | 2015-05-19 | Backlight unit and display device with backlight unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104832841A (en) |
| WO (1) | WO2016183856A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042427A (en) * | 2015-08-13 | 2015-11-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN105652457A (en) * | 2016-04-11 | 2016-06-08 | 宁波维真显示科技有限公司 | Method for improving glass-to-glass full-fitting warping |
| WO2018126746A1 (en) * | 2017-01-05 | 2018-07-12 | 京东方科技集团股份有限公司 | Backlight module, display module and display device |
| CN109975918A (en) * | 2019-04-10 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of fitting optical module and liquid crystal module entirely |
| CN114815394A (en) * | 2018-09-06 | 2022-07-29 | 群创光电股份有限公司 | Display device |
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| JP2014078520A (en) * | 2010-05-28 | 2014-05-01 | Lg Innotek Co Ltd | Backlight unit and display device having the same |
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| CN105042427A (en) * | 2015-08-13 | 2015-11-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN105652457A (en) * | 2016-04-11 | 2016-06-08 | 宁波维真显示科技有限公司 | Method for improving glass-to-glass full-fitting warping |
| WO2018126746A1 (en) * | 2017-01-05 | 2018-07-12 | 京东方科技集团股份有限公司 | Backlight module, display module and display device |
| US10802205B2 (en) | 2017-01-05 | 2020-10-13 | Boe Technology Group Co., Ltd. | Backlight module, display module and display device |
| CN114815394A (en) * | 2018-09-06 | 2022-07-29 | 群创光电股份有限公司 | Display device |
| CN109975918A (en) * | 2019-04-10 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of fitting optical module and liquid crystal module entirely |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016183856A1 (en) | 2016-11-24 |
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Application publication date: 20150812 |