CN106590003A - Shading material for display device - Google Patents
Shading material for display device Download PDFInfo
- Publication number
- CN106590003A CN106590003A CN201510685068.2A CN201510685068A CN106590003A CN 106590003 A CN106590003 A CN 106590003A CN 201510685068 A CN201510685068 A CN 201510685068A CN 106590003 A CN106590003 A CN 106590003A
- Authority
- CN
- China
- Prior art keywords
- light screening
- heat conduction
- heat conducting
- screening material
- matrix
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention provides a shading material for a display device and a preparation method of the shading material. The shading material is of a single-layer structure and comprises a base and at least two different heat conducting materials distributed in the base. The preparation method includes the steps: adding heat conducting granular materials and heat conducting fiber materials into the base and uniformly distributing the materials in the base; foaming the base and forming a heat conducting communication network in the base in a bordered manner by the heat conducting granular materials and the heat conducting fiber materials to form a double-seepage structure; performing pressure forming to obtain the shading material. The shading material with a novel structure integrates shading, buffering and heat conducting, can effectively promote thinning of products and is simple in structure, manufacturing processes are decreased, cost can be effectively reduced, two or more different heat conducting materials are added into buffering materials and are easily bordered in the base to form the heat conducting communication network, and better heat conducting performances are achieved.
Description
Technical field
The present invention relates to field of display devices, more particularly to a kind of light screening material for display device, it has
Shading, heat conduction, buffering and it is frivolous the characteristics of, can effectively meet the industry development needs.
Background technology
OLED display screen is a kind of luminous autonomous light emitting display of new organic semiconductor, in its luminous mould
Group adds behind one layer of shading rubber belt (Rear tape) can be reduced light loss and prevent light leak, so as to effectively
Improve its display effect.
Display device also can generate heat while luminous, especially on drives IC, with collection
Into the diminution of the raising and integrated size for changing degree, heat flow density is greatly increased, and correspondingly, temperature is also significantly
Degree is increased.It has been found that the rising of temperature can substantially reduce stability and the life-span of product, therefore, hide
Light adhesive tape Rear tape are while shading, it is desirable to have preferably heat conductivility is ensureing the quick exclusion of heat.
In addition, shockproof and drop resistant is also a very important index of properties of product assessment, and addition has buffering
The Rear tape of performance can effectively improve the drop resistant and shockproof properties of product.Therefore, Rear tape should have
The performance of standby shading, heat conduction and buffering.
At present, in order to realize the above-mentioned performance requirement of shading rubber belt Rear tape, traditional Rear tape
For three-decker, successively including heat-conducting layer, adhesive linkage and cushion, the structure of this Multi-layer design is not only adding
Work link needs each layer individually to process again the complicated technology of bonding, and more importantly its thickness is too
Thickness, and display device when working heat must pass through the poor cushion of thermal conductivity, cause the heat cannot be rapidly
Outwards conduction.As the electronic products such as mobile phone, flat board are towards more thinning, the development in more lighting direction, three layers
The light screening material of thickness structure obviously becomes its key constraints.Therefore, a kind of tool for display device
Have an above-mentioned performance and the light screening material with frivolous structure be those skilled in the art in the urgent need to.
The content of the invention
Present invention is generally directed to the structure of display device product backlight module light screening material is optimized, and effectively change
Enter heat conduction, buffering, shockproof effect；Further, it is each effectively improving by being optimized to its structure
While aspect of performance, also to ensure the characteristics of its is frivolous；Further, the corresponding preparation work of structure optimization
Skill is also required to reach the requirement that technique is reduced, cost is reduced.
In order to realize the above, present inventor prepared it is a kind of for display device with screening
The light screening material of light, heat conduction and three kinds of performances of buffering and frivolous single layer structure.The new structure that the present invention is provided
Light screening material collection shading, buffering, heat conduction one, the thinning of product can be effectively facilitated；The shading of new structure
Material is single layer structure, and simple structure makes technique reduction, can effectively reduce reduces cost；New structure
Light screening material is the Heat Conduction Material for adding two kinds or more different shapes in padded coaming, and Heat Conduction Material is in matrix
In be easier to have a common boundary the heat conduction network to form connection, with more preferable heat conductivility.
The theme of a first aspect of the present invention is a kind of light screening material for display device, it is characterised in that institute
Light screening material is stated for single layer structure, including matrix and at least two different heat conduction materials that are distributed in described matrix
Material.
In one embodiment of the invention, described matrix is bubble cotton-like material；The Heat Conduction Material includes heat conduction
Granular materialss and heat conducting fiber material.
In another embodiment of the presently claimed invention, the quality of the heat conduction particle material accounts for the light screening material matter
The 1-8% of amount, the quality of the heat conducting fiber material accounts for the 1-8% of the light screening material quality.Preferably,
The heat conduction particle material is selected from any one in graphite flake, copper granule, alumina particles or its combination, described to lead
Thermal fiber material includes CNT or carbon fiber.
In one embodiment of the invention, emptying aperture is distributed with inside described matrix.
The theme of a second aspect of the present invention is a kind of preparation method of light screening material described above, and its feature exists
In, including：
Step 1：Heat conduction particle material and heat conducting fiber material are added in matrix, and are uniformly distributed in it
In described matrix；
Step 2：Described matrix is foamed so that the heat conduction particle material and the heat conducting fiber material
The connected network to form heat conduction can be had a common boundary in described matrix, double percolation Structures are formed；
Step 3：Extrusion forming obtains the light screening material.
In one embodiment of the invention, described matrix is bubble cotton-like material；The heat conduction particle material is selected from
Any one in graphite flake, copper granule, alumina particles or its combination；The heat conducting fiber material includes carbon nanometer
Pipe or carbon fiber.
In another embodiment, the quality of the heat conduction particle material accounts for the light screening material quality
1-8%, the quality of the heat conducting fiber material accounts for the 1-8% of the light screening material quality.Preferably, it is described to lead
Hot particulate material is selected from any one in graphite flake, copper granule, alumina particles or its combination, the heat conducting fiber
Material includes CNT or carbon fiber.
In one embodiment of the invention, matrix material is dissolved in organic solvent.
The theme of a third aspect of the present invention is a kind of backlight of the display device containing light screening material described above
Module.
The theme of a fourth aspect of the present invention is a kind of display device containing light screening material described above, wherein,
Preferably OLED display.
Present inventor has found, using technical scheme, can be fused to heat-conducting layer and cushion
Together, so as to effectively thickness thinning；In addition, by adding at least two different Heat Conduction Materials, Ke Yigeng
It is readily obtained double percolation Structures such that it is able to preferably have a common boundary the heat conduction network to form connection, two kinds or more are not no
The phenomenon not having a common boundary as Heat Conduction Material in single doping can be greatly reduced with the Heat Conduction Material doping of form so that whole
Individual light screening material has more preferable heat conductivility.
Compared with prior art, the technical scheme of the application has advantages below and beneficial effect：
1st, the light screening material of prior art needs each layer individually to process, and is combined with adhesive linkage afterwards, so
Cut again afterwards, and the light screening material of the application, add the Heat Conduction Material of two kinds or more different shapes in foam base
In body material, and it is distributed in the base, then foaming, structure is reduced, material
It is thinning, and reduce technique, reduces cost；
2nd, the application uses the Heat Conduction Material of two kinds of different shapes of addition, can be preferably in intrinsic silicon
The network to form connection is had a common boundary, double percolation Structures can be formed so that the heat conductivility of matrix is more excellent；
3rd, when display device works, the heat of generation is transmitted from top to bottom, using the light screening material of prior art,
The transmission of heat is had to through the poor cushion of heat conductivility, is unfavorable for the quick conduction of heat, and
The light screening material of the application only has one layer, and it had both had buffering and shockproof effect or had had heat-conducting effect, can have
The thermal resistance reduced in heat transfer process of effect, puies forward highly thermally conductive efficiency.
Description of the drawings
The structural representation of light screening materials of the Fig. 1 shown in one embodiment of the application.
Specific embodiment
The invention provides a kind of light screening material for display device, it is characterised in that the light screening material is
Single layer structure, including matrix and at least two different Heat Conduction Materials being distributed in described matrix.
In one embodiment of the invention, described matrix is bubble cotton-like material；The Heat Conduction Material includes heat conduction
Granular materialss and heat conducting fiber material.
In another embodiment of the presently claimed invention, the quality of the heat conduction particle material accounts for the light screening material matter
The 1-8% of amount, the quality of the heat conducting fiber material accounts for the 1-8% of the light screening material quality.Preferably,
The heat conduction particle material is selected from any one in graphite flake, copper granule, alumina particles or its combination, described to lead
Thermal fiber material includes CNT or carbon fiber.
In one embodiment of the invention, emptying aperture is distributed with inside described matrix.
Present invention also offers a kind of preparation method of light screening material described above, it is characterised in that include：
Step 1：Heat conduction particle material and heat conducting fiber material are added in matrix, and are uniformly distributed in it
In described matrix；
Step 2：Described matrix is foamed so that the heat conduction particle material and the heat conducting fiber material
The connected network to form heat conduction can be had a common boundary in described matrix, double percolation Structures are formed；
Step 3：Extrusion forming obtains the light screening material.
In one embodiment of the invention, described matrix is bubble cotton-like material；The heat conduction particle material is selected from
Any one in graphite flake, copper granule, alumina particles or its combination；The heat conducting fiber material includes carbon nanometer
Pipe or carbon fiber.
In another embodiment, the quality of the heat conduction particle material accounts for the light screening material quality
1-8%, the quality of the heat conducting fiber material accounts for the 1-8% of the light screening material quality.Preferably, it is described to lead
Hot particulate material is selected from any one in graphite flake, copper granule, alumina particles or its combination, the heat conducting fiber
Material includes CNT or carbon fiber.
In one embodiment of the invention, matrix material is dissolved in organic solvent.
Invention further provides a kind of backlight module of the display device containing light screening material described above, and
A kind of display device containing light screening material described above, wherein, preferably OLED display.
Embodiment 1
A kind of light screening material for display device, its preparation method includes：
Step 1：Heat conduction particle material and account for the light screening material that the light screening material quality is 4.5% will be accounted for
Quality is that 5.0% heat conducting fiber material is added in the matrix for being dissolved in organic solvent, and stirring causes heat conduction material
Material is uniformly distributed in described matrix；
Step 2：Described matrix is foamed using foam process so that the heat conduction particle material and described
Heat conducting fiber material can have a common boundary the connected network to form heat conduction in described matrix, form double percolation Structures；
Step 3：Extrusion forming obtains the light screening material；
Wherein, the heat conduction particle material is Copper Foil, and the heat conducting fiber material is CNT.
Embodiment 2
A kind of light screening material for display device, its preparation method includes：
Step 1：Heat conduction particle material and account for the light screening material that the light screening material quality is 3.0% will be accounted for
Quality is that 6.2% heat conducting fiber material is added in the matrix for being dissolved in organic solvent, and stirring causes heat conduction material
Material is uniformly distributed in described matrix；
Step 2：Described matrix is foamed using foam process so that the heat conduction particle material and described
Heat conducting fiber material can have a common boundary the connected network to form heat conduction in described matrix, form double percolation Structures；
Step 3：Extrusion forming obtains the light screening material；
Wherein, the heat conduction particle material is aluminium foil, and the heat conducting fiber material is carbon fiber.
Comparative example 3
A kind of three layers of light screening material are prepared using the raw material in embodiment 1 according to prior art.
By the contrast to above-described embodiment 1-2 and comparative example 3, it is found that the thickness of comparative example is bright
It is aobvious to be thicker than embodiment 1-2, and by testing its performance, it is found that shock-absorbing capacity is more or less the same, but heat conduction side
Face embodiment 1-2 is substantially better than comparative example 3.
The specific embodiment of the present invention has been described in detail above, but it is intended only as example, and the present invention is simultaneously
It is not restricted to particular embodiments described above.To those skilled in the art, it is any that the present invention is carried out
Equivalent modifications and substitute also all among scope of the invention.Therefore, in the spirit and model without departing from the present invention
Enclose lower made impartial conversion and change, all should cover within the scope of the invention.
Claims (10)
1. a kind of light screening material for display device, it is characterised in that the light screening material is single layer structure, bag
Include matrix and at least two different Heat Conduction Materials being distributed in described matrix.
2. light screening material according to claim 1, it is characterised in that described matrix is bubble cotton-like material；It is described
Heat Conduction Material includes heat conduction particle material and heat conducting fiber material.
3. light screening material according to claim 2, it is characterised in that the quality of the heat conduction particle material accounts for institute
The 1-8% of light screening material quality is stated, the quality of the heat conducting fiber material accounts for the light screening material quality
1-8%.
4. light screening material according to claim 3, it is characterised in that the heat conduction particle material selected from graphite flake,
Any one in copper granule, alumina particles or its combination.
5. light screening material according to claim 3, it is characterised in that the heat conducting fiber material includes carbon nanometer
Pipe or carbon fiber.
6. light screening material according to claim 1, it is characterised in that emptying aperture is distributed with inside described matrix.
7. a kind of preparation method of light screening material, it is characterised in that include：
Step 1：Heat conduction particle material and heat conducting fiber material are added in matrix, and are uniformly distributed in it
In described matrix；
Step 2：Described matrix is foamed so that the heat conduction particle material and the heat conducting fiber material
The connected network to form heat conduction can be had a common boundary in described matrix, double percolation Structures are formed；
Step 3：Extrusion forming obtains the light screening material.
8. preparation method according to claim 7, it is characterised in that described matrix is bubble cotton-like material；It is described
Heat conduction particle material is selected from any one in graphite flake, copper granule, alumina particles or its combination；The heat conduction is fine
Dimension material includes CNT or carbon fiber.
9. preparation method according to claim 7, it is characterised in that matrix material is dissolved in organic solvent.
10. a kind of display device containing light screening material described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685068.2A CN106590003A (en) | 2015-10-20 | 2015-10-20 | Shading material for display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685068.2A CN106590003A (en) | 2015-10-20 | 2015-10-20 | Shading material for display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106590003A true CN106590003A (en) | 2017-04-26 |
Family
ID=58555295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685068.2A Pending CN106590003A (en) | 2015-10-20 | 2015-10-20 | Shading material for display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106590003A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828350A (en) * | 2017-12-15 | 2018-03-23 | 常熟市长江胶带有限公司 | One kind radiating damping solar cell module fixation adhesive tape |
| CN108878682A (en) * | 2018-06-28 | 2018-11-23 | 上海天马有机发光显示技术有限公司 | A kind of protection structure and preparation method thereof, organic light-emitting display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1894355A (en) * | 2003-12-18 | 2007-01-10 | 日本瑞翁株式会社 | Thermally conductive pressure-sensitive adhesive composition, thermally conductive sheet-form molded foam, and process for producing the same |
| CN1927988A (en) * | 2005-09-05 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Heat interfacial material and method for making the same |
| CN201777997U (en) * | 2010-03-23 | 2011-03-30 | 中山新亚洲胶粘制品有限公司 | Shading and reflecting double-sided tape |
| CN202306066U (en) * | 2011-07-27 | 2012-07-04 | 青岛海信电器股份有限公司 | Liquid crystal module |
-
2015
- 2015-10-20 CN CN201510685068.2A patent/CN106590003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1894355A (en) * | 2003-12-18 | 2007-01-10 | 日本瑞翁株式会社 | Thermally conductive pressure-sensitive adhesive composition, thermally conductive sheet-form molded foam, and process for producing the same |
| CN1927988A (en) * | 2005-09-05 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Heat interfacial material and method for making the same |
| CN201777997U (en) * | 2010-03-23 | 2011-03-30 | 中山新亚洲胶粘制品有限公司 | Shading and reflecting double-sided tape |
| CN202306066U (en) * | 2011-07-27 | 2012-07-04 | 青岛海信电器股份有限公司 | Liquid crystal module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828350A (en) * | 2017-12-15 | 2018-03-23 | 常熟市长江胶带有限公司 | One kind radiating damping solar cell module fixation adhesive tape |
| CN108878682A (en) * | 2018-06-28 | 2018-11-23 | 上海天马有机发光显示技术有限公司 | A kind of protection structure and preparation method thereof, organic light-emitting display device |
| CN108878682B (en) * | 2018-06-28 | 2020-11-27 | 上海天马有机发光显示技术有限公司 | Protection structure, manufacturing method thereof and organic light-emitting display device |
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Application publication date: 20170426 |
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