CN104658430A - Flexible display device - Google Patents
Flexible display device Download PDFInfo
- Publication number
- CN104658430A CN104658430A CN201510091603.1A CN201510091603A CN104658430A CN 104658430 A CN104658430 A CN 104658430A CN 201510091603 A CN201510091603 A CN 201510091603A CN 104658430 A CN104658430 A CN 104658430A
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- China
- Prior art keywords
- flexible
- layer
- display apparatus
- cathode layer
- anode layer
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
Abstract
The invention discloses a flexible display device. The flexible display device comprises a flexible screen body and a flexible support body, wherein the flexible screen body is attached to the flexible support body; the flexible support body comprises a cathode layer, an anode layer and a flexible coating structure for forming a sealed cavity; the cathode layer and the anode layer are arranged in the flexible coating structure at a certain interval, and are relatively fixedly connected with the flexible coating structure; a current variant is filled into the flexible coating structure. The anode layer and the cathode layer are arranged in the sealed cavity formed by the sealing coating structure, and are connected with a power supply respectively; voltage is applied between the anode layer and the cathode layer, and the static yield stress is increased after the current variant is electrified, so that the flexible coating structure formed by folding at a certain angle is supported in a limited way, and free switching of a flexible terminal between flexibility and inflexibility is realized; and the flexible display device can be fixed at any bending angle, so that the practicability of the flexible display device is enhanced.
Description
Technical field
The present invention relates to display technique field, be specifically related to a kind of flexible display apparatus.
Background technology
The shape of flexible display apparatus can change, and is easy to carry, and has become a focus of current research.But the flexibility requirements of people to flexible display apparatus is: needing when carrying its state for flexible, definite shape can be kept in use constant.How to realize display device is switching to a research key issue in flexible and inflexibility.Only have to meet freely to switch between flexible and inflexibility and could meet the current demand to flexible terminal.
At present, common settling mode has the following two kinds.
Chinese patent literature CN 103985315 discloses a kind of flexible portable terminal, by increasing mechanical hook-up, utilize can bend and the portion that is folded mechanically can fixing bending angle to the switching of the flexibility and solid shape that realize terminal.
Chinese patent literature CN 103985338 discloses a kind of flexible display apparatus, and it drives Flexible Displays and the change of display main body by the detent be made up of electroactive polymer.Wherein, detent original state is folding, by applying voltage in active polymer both sides, makes layer of electroactive polymer extend and then flexible display apparatus is changed.
There is following technological deficiency in above-mentioned two kinds of settling modes: above-mentioned two kinds of folding modes only can realize the conversion between the smooth and stationary curved angle of display terminal, cannot realize the conversion between any bending angle, thus limit the practicality of Flexible Displays terminal.
Summary of the invention
For this reason, display device, in order to realize display device freely switching between flexibility and inflexibility, is formed arbitrary shape and fixes, the invention provides a kind of flexible display apparatus by the present invention.
Adopt technical scheme as described below:
A kind of flexible display apparatus, comprise flexible screen body and flexible supporter, described flexible screen body and described flexible supporter fit, described flexible supporter comprises cathode layer, anode layer and forms the flexible clad structure of seal chamber, described cathode layer and anode layer are set in distance in described flexible clad structure, and relatively with described flexible clad structure to be fixedly connected with, be filled with electro rheological fluids in described flexible clad structure.
Described anode layer overlapping multilayer parallel with cathode layer, the side of described seal chamber is fixed in one end of described anode layer, and its other end is arranged in described seal chamber; The opposite side of described seal chamber is fixed in one end of described cathode layer, and its other end is arranged in described seal chamber.
Described electro rheological fluids is electrorheological fluid or ER effect gel.
Described anode layer and described cathode layer are the sheet metal layers that thickness is less than 20 microns, and its surface is micron order roughness.
The surface of described sheet metal layers is provided with low ductile material.
Described low ductile material is glass layer or carbon fiber layer.
Described flexible clad structure is by polyethylene terephthalate (PolyethyleneTerephthalate, PET), PEN (Polyethylene Naphthal ate, PEN), polycarbonate (Polycarbonate, PC), polyethersulfone (Polyether Sulfone, PES) one or more and in polyimide (Polyimide, PI) are formed.
The gap that described adjacent anode layer and cathode layer are formed is 10-300 μm.
Described anode layer and described cathode layer all arrange layer 1-7 respectively in described flexible clad structure, the electrical connection all in parallel of each described anode layer, the electrical connection all in parallel of each described cathode layer.
Described anode layer and cathode layer respectively arrange 5 layers.
The present invention has following beneficial effect relative to prior art:
The present invention by arranging anode layer and cathode layer in the flexible clad structure forming seal chamber, and electro rheological fluids is filled in seal chamber, electro rheological fluids is between anode layer and cathode layer, anode layer is connected with power supply respectively with cathode layer, by applying voltage between the anode layer and the cathode layer, electro rheological fluids quiet yield stress after powered up becomes large, thus forms limited support to the flexible clad structure be folded to form under a certain angle, and the bending shape of flexible supporter is shaped.When needing the bending angle converting display device, after only needing power-off, electro rheological fluids is restored to the original state, and then flexible clad structure is bent into required form, and make anode layer and cathode layer energising, make the electro rheological fluids being positioned at seal chamber form fixing shape, and then reach the object changing flexible supporter bending angle, realize flexible terminal freely switching between flexibility and inflexibility, and any bending angle can be fixed on, improve the practicality of flexible display apparatus.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is flexible display apparatus structural representation (under formation state) provided by the present invention;
Fig. 2 is flexible display apparatus structural representation provided by the present invention (under bending state).
In figure: 1-flexible supporter, the flexible clad structure of 11-; 12-anode layer; 13-cathode layer; 14-electro rheological fluids; 2-flexible screen body.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, the invention provides a kind of flexible display apparatus, comprise flexible screen body 2 and flexible supporter 1, flexible supporter 1 wherein comprises cathode layer 13, anode layer 12 and forms the flexible clad structure 11 of seal chamber, cathode layer 13 and anode layer 12 are set in distance in flexible clad structure 11, and relatively with flexible clad structure 11 to be fixedly connected with, be filled with electro rheological fluids 14 in flexible clad structure 11.Flexible screen body 2 and flexible supporter 1 fit, and in the present invention, flexible screen body 2 and flexible supporter 1 can adopt transparent configuration, realize double-side or illumination.
Anode layer 12 in Fig. 1 overlapping multilayer parallel with cathode layer 13, the seal chamber side of flexible clad structure 11 is fixed in one end of anode layer 12, and its other end is arranged in seal chamber; The seal chamber opposite side of flexible clad structure 11 is fixed in one end of cathode layer 13, and its other end is arranged in seal chamber, and the electro rheological fluids 14 between each cathode layer 13 and anode layer 12 communicates with each other.As shown in Figure 2, when flexible supporter 1 carries out bending, bending angle outside flexible supporter 1 is larger, deflection is large, anode layer 12 outside the bending or cathode layer 13 larger than the moving displacement of the anode layer 12 inside its bending or cathode layer 13, thus to be formed as the situation of dislocation arrangement appears in each anode layer 12 in 2 or cathode layer 13 free end.
Electrorheological fluid of the present invention is with glycerine oxygen titanium particle for disperse phase, and silicone oil is insulating base liquid, and both mixing, the wherein particle size range 0.5 μm-5 μm of glycerine oxygen titanium particle, massfraction is 20-70%.
Anode layer 12 wherein all adopts thickness to be less than the sheet metal aluminium foil of 20 microns with cathode layer 13, and its surface attachment has the low ductile material such as glass layer, carbon fiber layer.Flexible supporter 1 is flexible material, can be polyethylene terephthalate (Polyethylene Terephthalate, PET), PEN (Polyethylene Naphthalate, PEN), polycarbonate (Polycarbonate, PC), polyethersulfone (Polyether Sulfone, PES), or one or more in polyimide (Polyimide, PI) are formed.
The present invention is when the seal chamber internal fixtion anode layer 12 that flexible clad structure is formed and cathode layer 13, and the gap that anode layer 12 and cathode layer 13 are formed is 10-300 μm.
Anode layer 12 given in Fig. 1 and Fig. 2 all arranges three layers with cathode layer 13 in seal chamber, the electrical connection all in parallel of each anode layer 12, the electrical connection all in parallel of each cathode layer 13.Certainly, also can adopt 4 layers or 5 Rotating fields, the preferred electrode number of plies of the present invention is 3-7 layer, and the most preferred number of plies is 5 Rotating fields, just repeats no more here.
The present invention by increasing the sandwich construction be made up of ER effect gel (or electrorheological fluid) and each electrode crossover in flexible display apparatus, thus realize utilizing electric field controls flexible display apparatus freely switching between flexibility and inflexibility, be specifically implemented as follows:
In not added electric field situation, this flexible supporter 1 can bend arbitrarily.When being folded into required angle, add voltage between anode layer 12 and cathode layer 13 after, can produce electric field between anode and cathode, thus the apparent viscosity of electro rheological fluids 14 is increased, surperficial tensile resistance strengthens greatly.Change the shape of flexible supporter 1 if at this moment want, just need change the relative position between cathode layer 13 and anode layer 12.Due to the electro-viscous effect of electro rheological fluids 14, make to be difficult between cathode layer 13 and anode layer 12 form relative displacement, be difficult to change so current shape can only be maintained.So just achieve the switching of flexible display apparatus between flexibility and inflexibility.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (10)
1. a flexible display apparatus, comprise flexible screen body and flexible supporter, described flexible screen body and described flexible supporter fit, it is characterized in that, described flexible supporter comprises cathode layer, anode layer and forms the flexible clad structure of seal chamber, described cathode layer and anode layer are set in distance in described flexible clad structure, and relatively with described flexible clad structure are fixedly connected with, and are filled with electro rheological fluids in described flexible clad structure.
2. flexible display apparatus according to claim 1, is characterized in that, described anode layer overlapping multilayer parallel with cathode layer, and the side of described seal chamber is fixed in one end of described anode layer, and its other end is arranged in described seal chamber; The opposite side of described seal chamber is fixed in one end of described cathode layer, and its other end is arranged in described seal chamber.
3. flexible display apparatus according to claim 1, is characterized in that, described electro rheological fluids is electrorheological fluid or ER effect gel.
4. flexible display apparatus according to claim 1, is characterized in that, described anode layer and described cathode layer are the sheet metal layers that thickness is less than 20 microns, and its surface is micron order roughness.
5. flexible display apparatus according to claim 4, is characterized in that, the surface of described sheet metal layers is provided with low ductile material.
6. flexible display apparatus according to claim 5, is characterized in that, described low ductile material is glass layer or carbon fiber layer.
7. flexible display apparatus according to claim 1, it is characterized in that, described flexible clad structure is by polyethylene terephthalate (Polyethylene Terephthalate, PET), PEN (Polyethylene Naphthalate, PEN), polycarbonate (Polycarbonate, PC), polyethersulfone (Polyether Sulfone, PES) one or more and in polyimide (Polyimide, PI) are formed.
8., according to the arbitrary described flexible display apparatus of claim 1-7, it is characterized in that, the gap that described adjacent anode layer and cathode layer are formed is 10-300 μm.
9. flexible display apparatus according to claim 8, is characterized in that, described anode layer and described cathode layer all arrange layer 1-7 respectively in described flexible clad structure, the electrical connection all in parallel of each described anode layer, the electrical connection all in parallel of each described cathode layer.
10. flexible display apparatus according to claim 9, is characterized in that, described anode layer and cathode layer respectively arrange 5 layers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091603.1A CN104658430A (en) | 2015-02-28 | 2015-02-28 | Flexible display device |
| CN201910360618.1A CN110085124A (en) | 2015-02-28 | 2015-02-28 | A kind of flexible supporter and a kind of flexible display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091603.1A CN104658430A (en) | 2015-02-28 | 2015-02-28 | Flexible display device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910360618.1A Division CN110085124A (en) | 2015-02-28 | 2015-02-28 | A kind of flexible supporter and a kind of flexible display apparatus |
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| Publication Number | Publication Date |
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| CN104658430A true CN104658430A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510091603.1A Pending CN104658430A (en) | 2015-02-28 | 2015-02-28 | Flexible display device |
| CN201910360618.1A Pending CN110085124A (en) | 2015-02-28 | 2015-02-28 | A kind of flexible supporter and a kind of flexible display apparatus |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910360618.1A Pending CN110085124A (en) | 2015-02-28 | 2015-02-28 | A kind of flexible supporter and a kind of flexible display apparatus |
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| CN (2) | CN104658430A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062849A1 (en) * | 2017-09-28 | 2019-04-04 | Boe Technology Group Co., Ltd. | Foldable display apparatus,operating method and fabricating method thereof, and electronic apparatus |
| CN110570519A (en) * | 2019-09-05 | 2019-12-13 | 西南交通大学 | Intelligent command system for emergency restoration of railway disasters and application method thereof |
| CN110770813A (en) * | 2017-08-03 | 2020-02-07 | 深圳市柔宇科技有限公司 | Folding mechanism control method, folding mechanism and terminal |
| WO2021077638A1 (en) * | 2019-10-22 | 2021-04-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145650A (en) * | 2020-01-21 | 2020-05-12 | 合肥维信诺科技有限公司 | Display device |
| CN112116875A (en) * | 2020-10-13 | 2020-12-22 | 武汉华星光电半导体显示技术有限公司 | Foldable display module |
| CN112331080A (en) * | 2020-11-10 | 2021-02-05 | 四川长虹电器股份有限公司 | Flexible screen capable of being curled |
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| US20130265631A1 (en) * | 2012-04-06 | 2013-10-10 | Yi-Joon Ahn | Flexible display apparatus |
| CN103513457A (en) * | 2012-06-29 | 2014-01-15 | 纳米新能源（唐山）有限责任公司 | Liquid crystal display and handbag, bottle cover and intelligent card with same |
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| CN103985338A (en) * | 2013-02-13 | 2014-08-13 | 三星显示有限公司 | Flexible display device |
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| US4896754A (en) * | 1988-08-25 | 1990-01-30 | Lord Corporation | Electrorheological fluid force transmission and conversion device |
| JP2004071765A (en) * | 2002-08-05 | 2004-03-04 | Sony Corp | Electroviscous fluid device and electronic apparatus |
| US7137496B2 (en) * | 2004-03-24 | 2006-11-21 | China Patent Investment Limited | Parallel field electrode configurations for electrorheological fluid applications |
| CN102419933A (en) * | 2010-09-28 | 2012-04-18 | 富泰华工业（深圳）有限公司 | Display and electronic device with same |
| CN103806569A (en) * | 2014-01-26 | 2014-05-21 | 大连理工大学 | Electro-rheological elastomer intelligent shock insulation supporting base |
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- 2015-02-28 CN CN201910360618.1A patent/CN110085124A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130265631A1 (en) * | 2012-04-06 | 2013-10-10 | Yi-Joon Ahn | Flexible display apparatus |
| CN103513457A (en) * | 2012-06-29 | 2014-01-15 | 纳米新能源（唐山）有限责任公司 | Liquid crystal display and handbag, bottle cover and intelligent card with same |
| CN103985338A (en) * | 2013-02-13 | 2014-08-13 | 三星显示有限公司 | Flexible display device |
| CN203689833U (en) * | 2013-12-25 | 2014-07-02 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display back panel and flexible display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770813A (en) * | 2017-08-03 | 2020-02-07 | 深圳市柔宇科技有限公司 | Folding mechanism control method, folding mechanism and terminal |
| WO2019062849A1 (en) * | 2017-09-28 | 2019-04-04 | Boe Technology Group Co., Ltd. | Foldable display apparatus,operating method and fabricating method thereof, and electronic apparatus |
| US11250734B2 (en) | 2017-09-28 | 2022-02-15 | Boe Technology Group Co., Ltd. | Foldable display apparatus, electronic apparatus, method of operating foldable display apparatus, and method of fabricating foldable display apparatus |
| CN110570519A (en) * | 2019-09-05 | 2019-12-13 | 西南交通大学 | Intelligent command system for emergency restoration of railway disasters and application method thereof |
| WO2021077638A1 (en) * | 2019-10-22 | 2021-04-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110085124A (en) | 2019-08-02 |
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Application publication date: 20150527 |