CN106704908A - Backlight assembly, preparation method thereof and display device - Google Patents
Backlight assembly, preparation method thereof and display device Download PDFInfo
- Publication number
- CN106704908A CN106704908A CN201611152946.5A CN201611152946A CN106704908A CN 106704908 A CN106704908 A CN 106704908A CN 201611152946 A CN201611152946 A CN 201611152946A CN 106704908 A CN106704908 A CN 106704908A
- Authority
- CN
- China
- Prior art keywords
- backlight assembly
- hot melting
- melting cohesion
- optical
- substrate
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims description 41
- 230000008018 melting Effects 0.000 claims description 41
- 239000010409 thin film Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 3
- 239000004831 Hot glue Substances 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 abstract 1
- 239000012943 hotmelt Substances 0.000 abstract 1
- 230000037303 wrinkles Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to a backlight assembly, a preparation method thereof and a display device, wherein the backlight assembly comprises a substrate, a hot-melt bonding piece and an optical membrane which are sequentially stacked; the substrate comprises an optical visible area and a non-optical visible area, and the hot melt adhesive piece is correspondingly arranged in the non-optical visible area. The backlight assembly is provided with the hot melt adhesive piece, and then is pressed by the hot pressing roller, so that the wrinkles of the backlight assembly can be effectively prevented, the backlight assembly comprises the substrate, the combined stiffness of the diaphragm is enough, the clearance between the diaphragms is small and stable, and the common optical defects are avoided.
Description
Technical field
The present invention relates to optical technical field, more particularly to a kind of backlight assembly and preparation method thereof and display device.
Background technology
Traditional backing structure is broadly divided into straight-down negative and the class of side entering type two.The backlight portion of both modes all passes through
Many diaphragm combinations are realized.But problems with is primarily present at present：
In production：Each diaphragm independence supplied materials, supplied materials quality management and control cost increases, easily loss；It is multiple during production operation
Diaphragm stack, during need strict management and control dust in air, want also management and control plastic film mulch piece position and press effect, it is cumbersome,
Production process is lost also than larger.
It is common bad：Diaphragm is very thin, and deflection is not enough, and easy fold causes optical effect bad；Friction between diaphragm,
Gap, also dirty grade can also influence actual optical effect.
At present usually using glue-line adhesive film, production efficiency problem is solved, but fold, air-blowing problem between film
Or exist.And glue bond mode has certain negative effect to positioning and optical effect.In addition, diaphragm assembly and expansion
Fall apart or light guide plate is to discriminate between out, deflection deficiency problem still cannot be solved.
The content of the invention
Based on this, it is an object of the invention to provide a kind of backlight assembly.
Specific technical scheme is as follows：
A kind of backlight assembly, including substrate, hot melting cohesion part and the blooming piece for stacking gradually；The substrate includes light
Viewing area and non-optical viewing area are learned, the hot melting cohesion part is correspondingly arranged in the non-optical viewing area.
Wherein in some embodiments, the hot melting cohesion part is shaped as back-shaped, U-shaped, L-shaped or bar shaped.
Wherein in some embodiments, being shaped as the hot melting cohesion part is back-shaped, the back-shaped outward flange with it is described
Substrate aligns.The thickness of the hot melting cohesion part is less than 0.2mm.
Wherein in some embodiments, the material of the hot melting cohesion part is PET, PVC, TPU etc..
Wherein in some embodiments, the blooming piece includes the optical thin film of 2 or more than 2, described in adjacent 2
The hot melting cohesion part is laminated between optical thin film.
Wherein in some embodiments, the non-optical viewing area is additionally provided with some locating dowels, the hot melting cohesion part
And the blooming piece is equipped with and thinks corresponding location hole with the locating dowel.
Wherein in some embodiments, the height of the locating dowel is total with the blooming piece more than the hot melting cohesion part
Thickness.
Wherein in some embodiments, height-hot melting cohesion part and the blooming piece total thickness of the locating dowel
Degree >=0.5mm.
Wherein in some embodiments, the substrate is light guide plate or diffuser plate.
It is a further object of the present invention to provide the preparation method of above-mentioned backlight assembly.
The preparation method of above-mentioned backlight assembly, comprises the following steps：
The substrate, the hot melting cohesion part and the blooming piece are stacked gradually, is then entered using heat pressure roller
Row rolling, obtains final product；The technological parameter of wherein heat pressure roller is：The temperature range of the non-optical viewing area is 100-140 DEG C,
The temperature range in the optical visible region is 50-80 DEG C.
It is a further object of the present invention to provide a kind of display device.
A kind of display device, including above-mentioned backlight assembly.
Above-mentioned backlight assembly, sets hot melting cohesion part between substrate and blooming piece, and blooming piece includes 2 or 2
Optical thin film above, adjacent 2 optical thin films have directly also been stacked hot melting cohesion part, and PET bonding sheets correspond to substrate
Non-optical viewing area.By setting hot melting cohesion part, then backlight assembly is pressed by the way of heat pressure roller, Neng Gouyou
Effect prevents backlight assembly fold, backlight assembly from causing membrane combination deflection enough comprising substrate, and film gap is very small and stable,
Avoid common optics bad.
Additionally, be also provided with locating dowel in the non-optical viewing area of the substrate, correspondingly hot melting cohesion part and light
The relevant position for learning diaphragm is provided with location hole, conveniently stacking can press, and the height of locating dowel is overall high higher than diaphragm
Degree, can well fix diaphragm after pressing, prevent dislocation.
Brief description of the drawings
Fig. 1 is the structural representation of the backlight assembly of embodiment one.
Description of reference numerals：
101st, substrate；102nd, PET bonding sheets；103rd, blooming piece；201st, locating dowel；202nd, location hole.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
It should be noted that when element is referred to as " being installed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connection
To another element or may be simultaneously present centering elements.When an element is considered as " connection " another element, it can
To be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
The arbitrary and all of combination of the Listed Items of pass.
With reference to Fig. 1, a kind of backlight assembly, including substrate 101, hot melting cohesion part 102 and the blooming piece for stacking gradually
103；The substrate includes optical visible region and non-optical viewing area, and the hot melting cohesion part is correspondingly arranged in the non-light
Learn viewing area.
It should be understood that the shape of the hot melting cohesion part can be back-shaped, U-shaped, L-shaped or bar shaped.Preferably, heat viscous
Knot part is shaped as back-shaped (in Fig. 1 hot melting cohesion part be shaped as back-shaped), and the back-shaped outward flange is alignd with the substrate.
The thickness of the hot melting cohesion part is less than 0.2mm.It should be understood that the material of the hot melting cohesion part can for PET, PVC,
TPU etc..
Hot melting cohesion part needs just produce caking property under conditions of heating, when diaphragm and substrate are laminated without viscous
Knot property, can effectively prevent diaphragm fold, reduce scrappage.
It should be understood that optical thin film (brightening piece or diffusion barrier etc. of the blooming piece including 2 or more than 2
Deng), it is laminated with the hot melting cohesion part between adjacent 2 optical thin films.
In order that can be aligned well between substrate and each diaphragm, be easy to pressing, the substrate it is non-optical visual
Region is additionally provided with some locating dowels 201, and the hot melting cohesion part and the blooming piece are equipped with thinks right with the locating dowel
The location hole 202 answered.
The height of the locating dowel is more than the hot melting cohesion part and the blooming piece gross thickness.In the present embodiment, institute
The height of locating dowel is stated than the hot melting cohesion part and the blooming piece gross thickness 0.5mm high.
It should be understood that when backlight assembly is applied to side entrance back, the substrate is light guide plate, when backlight assembly should
During for downward back light, the substrate is diffuser plate.
The preparation method of above-mentioned backlight assembly, comprises the following steps：
The substrate, the hot melting cohesion part and the blooming piece are stacked gradually, is then entered using heat pressure roller
Row rolling, obtains final product；The technological parameter of wherein heat pressure roller is：The temperature range of the non-optical viewing area is 100-140 DEG C,
The temperature range in the optical visible region is 50-80 DEG C.
Above-mentioned backlight assembly can be applied to display device.
Above-mentioned backlight assembly sets hot melting cohesion part between substrate and blooming piece, blooming piece include 2 or 2 with
On optical thin film, adjacent 2 optical thin films have directly also been stacked hot melting cohesion part, and PET bonding sheets correspond to substrate
Non-optical viewing area.By setting hot melting cohesion part, then backlight assembly is pressed by the way of heat pressure roller, can be effective
Prevent backlight assembly fold, backlight assembly from causing membrane combination deflection enough comprising substrate, film gap is very small and stable, keeps away
Common optics is exempted from bad.
Additionally, be also provided with locating dowel in the non-optical viewing area of the substrate, correspondingly hot melting cohesion part and light
The relevant position for learning diaphragm is provided with location hole, conveniently stacking can press, and the height of locating dowel is overall high higher than diaphragm
Degree, can well fix diaphragm after pressing.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of backlight assembly, it is characterised in that including the substrate, hot melting cohesion part and the blooming piece that stack gradually；It is described
Substrate includes optical visible region and non-optical viewing area, and the hot melting cohesion part is correspondingly arranged in the non-optical visible area
Domain.
2. backlight assembly according to claim 1, it is characterised in that the hot melting cohesion part is shaped as back-shaped, U-shaped, L
Shape or bar shaped.
3. backlight assembly according to claim 1, it is characterised in that being shaped as the hot melting cohesion part is back-shaped, back-shaped
Alignd with the substrate outward flange of hot melting cohesion part.
4. the backlight assembly according to claim any one of 1-3, it is characterised in that the material of the hot melting cohesion part is
PET, PVC or TPU.
5. the backlight assembly according to claim any one of 1-3, it is characterised in that the blooming piece includes 2 or 2
Optical thin film above, the hot melting cohesion part is laminated between adjacent 2 optical thin films.
6. the backlight assembly according to claim any one of 1-3, it is characterised in that the non-optical viewing area is additionally provided with
Some locating dowels, the hot melting cohesion part and the blooming piece are equipped with and think corresponding location hole with the locating dowel.
7. backlight assembly according to claim 6, it is characterised in that the height of the locating dowel is more than the hot melting cohesion
The gross thickness of part and the blooming piece.
8. the backlight assembly according to claim any one of 1-3, it is characterised in that the substrate is light guide plate or diffusion
Plate.
9. the preparation method of the backlight assembly described in any one of claim 1-8, it is characterised in that comprise the following steps：
The substrate, the hot melting cohesion part and the blooming piece are stacked gradually, is then rolled using heat pressure roller
Pressure, obtains final product；The technological parameter of wherein heat pressure roller is：The temperature range of the non-optical viewing area is 100-140 DEG C, described
The temperature range in optical visible region is 50-80 DEG C.
10. a kind of display device, it is characterised in that including the backlight assembly described in claim any one of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152946.5A CN106704908A (en) | 2016-12-14 | 2016-12-14 | Backlight assembly, preparation method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152946.5A CN106704908A (en) | 2016-12-14 | 2016-12-14 | Backlight assembly, preparation method thereof and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704908A true CN106704908A (en) | 2017-05-24 |
Family
ID=58937037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611152946.5A Pending CN106704908A (en) | 2016-12-14 | 2016-12-14 | Backlight assembly, preparation method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704908A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672091A (en) * | 2002-07-26 | 2005-09-21 | 三星电子株式会社 | Backlight assembly and liquid crystal display device using the same |
| CN1754118A (en) * | 2003-01-16 | 2006-03-29 | 3M创新有限公司 | Packaging and handling method for optical films |
| CN101336442A (en) * | 2005-12-01 | 2008-12-31 | 富士胶片株式会社 | Optical sheet for display, and manufacturing method and apparatus therefor |
| CN201173408Y (en) * | 2008-02-02 | 2008-12-31 | 冠捷投资有限公司 | Backlight module |
| CN202522817U (en) * | 2012-04-26 | 2012-11-07 | 深圳市飞鑫光电有限公司 | Liquid crystal module facilitating assembly of diaphragm and diaphragm assembly |
| CN203162718U (en) * | 2013-01-15 | 2013-08-28 | 合肥宝龙达光电技术有限公司 | Backlight structure of liquid crystal display module |
| CN203258490U (en) * | 2013-01-15 | 2013-10-30 | 合肥宝龙达光电技术有限公司 | Liquid crystal display module backlight structure |
| WO2014208429A1 (en) * | 2013-06-25 | 2014-12-31 | 日本ゼオン株式会社 | Optical laminate and surface light source device |
| CN204229378U (en) * | 2014-11-19 | 2015-03-25 | 惠州比亚迪实业有限公司 | Touch-screen |
| CN104456310A (en) * | 2014-11-21 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Backlight source and display device |
-
2016
- 2016-12-14 CN CN201611152946.5A patent/CN106704908A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672091A (en) * | 2002-07-26 | 2005-09-21 | 三星电子株式会社 | Backlight assembly and liquid crystal display device using the same |
| CN1754118A (en) * | 2003-01-16 | 2006-03-29 | 3M创新有限公司 | Packaging and handling method for optical films |
| CN101336442A (en) * | 2005-12-01 | 2008-12-31 | 富士胶片株式会社 | Optical sheet for display, and manufacturing method and apparatus therefor |
| CN201173408Y (en) * | 2008-02-02 | 2008-12-31 | 冠捷投资有限公司 | Backlight module |
| CN202522817U (en) * | 2012-04-26 | 2012-11-07 | 深圳市飞鑫光电有限公司 | Liquid crystal module facilitating assembly of diaphragm and diaphragm assembly |
| CN203162718U (en) * | 2013-01-15 | 2013-08-28 | 合肥宝龙达光电技术有限公司 | Backlight structure of liquid crystal display module |
| CN203258490U (en) * | 2013-01-15 | 2013-10-30 | 合肥宝龙达光电技术有限公司 | Liquid crystal display module backlight structure |
| WO2014208429A1 (en) * | 2013-06-25 | 2014-12-31 | 日本ゼオン株式会社 | Optical laminate and surface light source device |
| CN204229378U (en) * | 2014-11-19 | 2015-03-25 | 惠州比亚迪实业有限公司 | Touch-screen |
| CN104456310A (en) * | 2014-11-21 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Backlight source and display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |