CN204257710U - Flexible base, board - Google Patents
Flexible base, board Download PDFInfo
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- CN204257710U CN204257710U CN201420801948.2U CN201420801948U CN204257710U CN 204257710 U CN204257710 U CN 204257710U CN 201420801948 U CN201420801948 U CN 201420801948U CN 204257710 U CN204257710 U CN 204257710U
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Abstract
The utility model discloses a kind of flexible base, board, this flexible base, board comprises the stretch-proof layer, planarization layer and the cured layer that stack gradually, and stretch-proof layer is network structure.Because stretch-proof layer is network structure, so hot strength is in the two-dimensional direction isotropic, therefore this stretch-proof layer makes whole flexible base, board have the advantage of stretch-proof, can prevent from producing distortion because of stretching, improves the stretch-proof performance of flexible display.
Description
Technical field
The utility model relates to Display Technique field, particularly relates to a kind of flexible base, board.
Background technology
Flexible Displays (Flexible Display) technology had development by leaps and bounds in nearly ten years, drove the quality of flexible display from the size of screen to display all to achieve very much progress thus.Flexible display is also called rollable display, is the bending deformed display unit made visual flexible panel with flexible material and form.Be no matter the CRT being on the verge of to disappear, still the LCD of main flow now, inherently belongs to traditional rigid display.Compared with common rigid display, flexible display has plurality of advantages: shock-resistant, and shock resistance is stronger; Lightweight, volume is little, carries convenient; Adopt the coil type technique being similar to newspaper printing technique, cost is cheaper.
Flexible display is substantially all adopt OLED (Organic Light-Emitting Diode, organic electric exciting light-emitting diode) Display Technique, what flexible base, board adopted is all plastic base, plastics pliability is better, but plastics itself have some defects, such as non-refractory, at high temperature the deflection of plastics is very large, hot strength is inadequate, meeting deformation failure etc. under flexible display stretching condition.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of flexible base, board of stretch-proof is provided.
A kind of flexible base, board, comprise the stretch-proof layer, planarization layer and the cured layer that stack gradually, described stretch-proof layer is netted.
Wherein in an embodiment, described planarization layer is provided with multiple projection for filling up described stretch-proof layer.
Wherein in an embodiment, the thickness of described planarization layer is greater than the thickness of described stretch-proof layer.
Wherein in an embodiment, described stretch-proof layer is at least one in carbon fibre web, glass fiber mesh, woven wire, carbon nano-tube network and graphene mesh.
Wherein in an embodiment, described flexible base, board also comprises the tack coat be connected with described stretch-proof layer.
Wherein in an embodiment, described stretch-proof layer has multiple, is provided with tack coat between described stretch-proof layer.
Wherein in an embodiment, described tack coat is adhesive layer.
Wherein in an embodiment, described tack coat is polyimide layer, acrylate layer, layer of polyurethane, polyvinyl alcohol layer or polyvinyl acetate.
Above-mentioned flexible base, board comprises the stretch-proof layer, planarization layer and the cured layer that stack gradually, and stretch-proof layer is network structure.Because stretch-proof layer is network structure, so hot strength is in the two-dimensional direction isotropic, therefore this stretch-proof layer makes whole flexible base, board have the advantage of stretch-proof, can prevent from producing distortion because of stretching, improves the stretch-proof performance of flexible display.
Accompanying drawing explanation
Fig. 1 is flexible base, board structural representation of the present utility model;
Fig. 2 is flexible base, board STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 3 is the structural representation of planarization layer of the present utility model.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Please refer to Fig. 1 and Fig. 2, the utility model provides a kind of flexible base, board 100, and this flexible base, board 100 comprises the stretch-proof layer 110, planarization layer 120 and the cured layer 130 that stack gradually, and stretch-proof layer 110 is netted.Because stretch-proof layer 110 is network structure, hot strength is in the two-dimensional direction isotropic, so stretch-proof layer 110 has the characteristic of stretch-proof, this stretch-proof layer 110 makes whole flexible base, board 100 have the advantage of stretch-proof, can prevent from producing distortion because of stretching, improve the stretch-proof performance of flexible display.
Stretch-proof layer 110 is network structure, and namely whole stretch-proof layer 110 is rough.Stretch-proof layer 110 is made up of the material with stretch-proof performance, as materials such as carbon fiber, glass fibre, wires, these materials while possessing good stretch-proof performance or resistant to elevated temperatures material, namely use these materials that this flexible base, board 100 can also be made to have good heat conductivility; The material such as Graphene, carbon nano-tube can also be used as except the making material of stretch-proof layer 110 except above-mentioned material can be used.When preparing flexible base, board 100, above-mentioned various material being made network structure, stretch-proof layer 110 can be formed.
Referring to Fig. 3, because stretch-proof layer 110 surface is rough, so flexible base, board 100 also comprises planarization layer 120, this planarization layer 120 is for by the planarization of rough stretch-proof layer 110.For the feature that stretch-proof layer 110 is netted, planarization layer 120 has multiple projection 121, these projections 121 are for filling up stretch-proof layer 110.When preparing flexible base, board 100, the low viscous polyimides of one deck is coated with on the surface at stretch-proof layer 110, because low viscous polyimides has good mobile performance, so polyimides can penetrate into stretch-proof layer 110 inside, general planarization stretch-proof layer 110 and hole can not be produced, so bubble or foaming can not be formed after hardening.Because planarization layer 120 needs to fill up stretch-proof layer 110, so the thickness of planarization layer 120 is greater than the thickness of stretch-proof layer 110.
Flexible base, board 100 also comprises cured layer 130.Cured layer 130 is equally also be made up of polyimides, and the viscosity of the polyimides of cured layer 130 is greater than the polyimides of planarization layer 120.When preparing flexible base, board 100, cured layer 130 generally adopts viscosity to be greater than the polyimides of 3000cp (centipoise), so just can form overall fine and close flexible base, board 100.Flexible base, board 100 adopts the mode of integral solidifying to make, OLED can be prepared on the glass substrate after curing molding, after prepared by device, peel off from glass baseplate surface and form flexible light or display device, laser lift-off mode can be adopted, also can adopt mechanical stripping mode.
Flexible base, board 100 also comprises the tack coat 140 be connected with stretch-proof layer 110.Tack coat 140 is adhesive layer, and concrete tack coat 140 is polyimide layer, acrylate layer, layer of polyurethane, polyvinyl alcohol layer or polyvinyl acetate layer.When preparing flexible base, board 100, be coated with one deck adhesive or polyimides first on the glass substrate to form tack coat 140.If coating adhesive forms tack coat 140, adhesive is esters of acrylic acid adhesive or polyurethanes adhesive or polyvinyl acetate class adhesive or rubber-like adhesive, the adhesion strength of this kind of adhesive is all lower, so be coated with on the glass substrate, directly mechanical stripping can be realized after prepared by flexible base, board 100, due to the resin that adhesive material is all non-refractory, so the substrate of the type can be applicable to Flexible Displays or the illuminating device of low temperature process.Same, when adopting coating polyimides to form tack coat 140, need to adopt low viscous polyimides, general viscosity is less than 2000cp, and due to polyimide high temperature-resistant, so the type substrate can be applicable to low temperature or high temperature process, range of application is wider.When flexible base, board 100 is peeled off from glass substrate, can peeling off from tack coat 140, also can peel off from stretch-proof layer 110, using tack coat 140 mainly in order to make stripping flexible base, board 100 more simple and convenient.
When preparing flexible base, board 100, can coating multiple stretch-proof layer 110, and be equipped with tack coat 140 between every layer of stretch-proof layer 110, like this by the cooperation of multilayer stretch-proof layer 110, stretch-proof performance and the heat conductivility of this flexible base, board 100 can be improved.
Above-mentioned flexible base, board 100 comprises the stretch-proof layer 110, planarization layer 120 and the cured layer 130 that stack gradually, and stretch-proof layer 110 is network structure.Because stretch-proof layer 110 is network structure, so hot strength is in the two-dimensional direction isotropic, so stretch-proof layer 110 has the characteristic of stretch-proof, this stretch-proof layer 110 makes whole flexible base, board 100 have the advantage of stretch-proof, can prevent from producing distortion because of stretching, improve the stretch-proof performance of flexible display.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. a flexible base, board, is characterized in that, comprises the stretch-proof layer, planarization layer and the cured layer that stack gradually, and described stretch-proof layer is netted.
2. flexible base, board according to claim 1, is characterized in that, described planarization layer is provided with multiple projection for filling up described stretch-proof layer.
3. flexible base, board according to claim 1, is characterized in that, the thickness of described planarization layer is greater than the thickness of described stretch-proof layer.
4. flexible base, board according to claim 1, is characterized in that, described stretch-proof layer is at least one in carbon fibre web, glass fiber mesh, woven wire, carbon nano-tube network and graphene mesh.
5. flexible base, board according to claim 1, is characterized in that, described flexible base, board also comprises the tack coat be connected with described stretch-proof layer.
6. flexible base, board according to claim 5, is characterized in that, described stretch-proof layer has multiple, is provided with tack coat between described stretch-proof layer.
7. the flexible base, board according to claim 5 or 6, is characterized in that, described tack coat is adhesive layer.
8. flexible base, board according to claim 7, is characterized in that, described tack coat is polyimide layer, acrylate layer, layer of polyurethane, polyvinyl alcohol layer or polyvinyl acetate layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801948.2U CN204257710U (en) | 2014-12-16 | 2014-12-16 | Flexible base, board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801948.2U CN204257710U (en) | 2014-12-16 | 2014-12-16 | Flexible base, board |
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| CN204257710U true CN204257710U (en) | 2015-04-08 |
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| CN201420801948.2U Active CN204257710U (en) | 2014-12-16 | 2014-12-16 | Flexible base, board |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720062A (en) * | 2016-02-02 | 2016-06-29 | 京东方科技集团股份有限公司 | Flexible substrate of bendable display device and manufacturing method for flexible substrate |
| CN106373983A (en) * | 2016-09-26 | 2017-02-01 | 上海天马微电子有限公司 | Flexible display panel and flexible display screen |
| CN109659339A (en) * | 2018-12-10 | 2019-04-19 | 武汉华星光电半导体显示技术有限公司 | Foldable display panel and preparation method thereof and foldable display device |
| CN111326068A (en) * | 2018-12-13 | 2020-06-23 | 昆山工研院新型平板显示技术中心有限公司 | Stretchable display panel and display device |
-
2014
- 2014-12-16 CN CN201420801948.2U patent/CN204257710U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720062A (en) * | 2016-02-02 | 2016-06-29 | 京东方科技集团股份有限公司 | Flexible substrate of bendable display device and manufacturing method for flexible substrate |
| US20170223821A1 (en) * | 2016-02-02 | 2017-08-03 | Boe Technology Group Co., Ltd. | Flexible substrate of bendable display device and manufacturing method thereof |
| CN105720062B (en) * | 2016-02-02 | 2018-11-06 | 京东方科技集团股份有限公司 | The flexible base board and preparation method thereof of bent display device |
| US10435818B2 (en) * | 2016-02-02 | 2019-10-08 | Boe Technology Group Co., Ltd. | Flexible substrate of bendable display device and manufacturing method thereof |
| CN106373983A (en) * | 2016-09-26 | 2017-02-01 | 上海天马微电子有限公司 | Flexible display panel and flexible display screen |
| CN106373983B (en) * | 2016-09-26 | 2020-01-21 | 上海天马微电子有限公司 | Flexible display panel and flexible display screen |
| CN109659339A (en) * | 2018-12-10 | 2019-04-19 | 武汉华星光电半导体显示技术有限公司 | Foldable display panel and preparation method thereof and foldable display device |
| CN111326068A (en) * | 2018-12-13 | 2020-06-23 | 昆山工研院新型平板显示技术中心有限公司 | Stretchable display panel and display device |
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