CN205827027U - A kind of flexible electronic paper display device - Google Patents

A kind of flexible electronic paper display device Download PDF

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Publication number
CN205827027U
CN205827027U CN201620546458.1U CN201620546458U CN205827027U CN 205827027 U CN205827027 U CN 205827027U CN 201620546458 U CN201620546458 U CN 201620546458U CN 205827027 U CN205827027 U CN 205827027U
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CN
China
Prior art keywords
electronic paper
flexible electronic
paper display
display device
cover plate
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Active
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CN201620546458.1U
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Chinese (zh)
Inventor
徐洪光
王元强
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Wuxi bairou Photoelectric Technology Co.,Ltd.
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Nanjing Bairou Optoelectronics Technology Co Ltd
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Priority to CN201620546458.1U priority Critical patent/CN205827027U/en
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Abstract

The utility model discloses a kind of flexible electronic paper display device; it is characterized in that: described flexible electronic paper membrane is connected to form flexible electronic paper display floater with driving backboard; it is provided with optical clear glue-line between described cover plate and flexible electronic paper display floater; described flexible electronic paper display floater is provided with water resistant oxygen protecting film away from the side of cover plate; described flexible electronic paper display floater periphery is provided with encapsulating structure, and described flexible circuit board is connected with driving backboard.This utility model neither affects the display quality of flexible electronic paper display screen, can get again solid and reliable structure, it is provided that a kind of good looking appearance, excellent performance, easily fabricated, the reliable and long-lived Flexible Displays terminal of structure, to solve the quality problem of flexible electronic paper display device.

Description

A kind of flexible electronic paper display device
Technical field
This utility model belongs to photoelectric display field, particularly relates to a kind of flexible electronic paper display device.
Background technology
Electronic Paper has reflection light display nature, flexible, be prone to inexpensively to manufacture and many advantages such as low-power consumption.With
Other Display Technique is compared, and the reflectance of Electronic Paper and contrast are preferable, is to be suitable for people to dress and outdoor display Media, and under light includes direct sunlight, display device based on Electronic Paper can still provide for using normally, therefore by extensively General it is applied to that price tag shows, IC-card shows, on all kinds of intelligent terminal and wearable device.
Electronic Paper of the prior art display product is based on the rigid electronic paper screen of glass base, flexible deflection electronics Paper screen is rarer.In recent years, the development of flexible electronic paper Display Technique is very rapid, and the processing technology of various advanced persons and technology are not Break and emerge in large numbers so that flexible electronic paper display quality improves constantly.
In view of its short and small frivolous, pliability is strong and the feature such as super low-power consumption, flexible electronic paper display screen is the most all kinds of Intelligent terminal is applied.But flexible electronic paper screen is when arranging in pairs or groups with terminal unit, is configured between terminal unit and cover plate, by In the inherent character of flexible deflection material, its mechanical performance and display quality must be properly settled simultaneously.Many Patent, when improving the mechanical performance of flexible display screen, is ignored or weakens its display quality.Chinese patent CN201210208465.7 devises back support mode, though impact resistance can to a certain degree be improved, but poor seismic behavior, hold It is easily caused screen skew or tilts, affecting display quality, be unfavorable for that market is applied.Chinese patent CN201210208465.7, In the patent structure that CN201110084898.1 discloses, all there is certain gap between display screen and cover plate, this gap one side Face is easily accessible dust, affects display effect;Clearance distance the most between the two is difficult to control to uniformly, at ambient light Catadioptric effect under, easily produce interference fringe, have a strong impact on screen display quality.On the other hand, due to flexible electronic paper Display device have flexibility feature, for people random be bending or folding over after, if curved transitions, or equipment assemble Curved transitions during production, may result in device stress deformation, and its internal display dielectric layer is impaired, the most each isolation of components, Affect display effect and service life eventually.Chinese patent CN201010518104.3 discloses the song of baroque encapsulating housing Face flexible display screen, it is intended to improve mechanical performance and the display quality solving flexible screen with this, but the method frame for movement is multiple Miscellaneous, manufacture method is complicated and consumption of materials is big, product yield and cost are also difficult to control to.
In view of this, it is necessary to propose the new construction of a kind of flexible electronic paper display device, neither affect flexible electronic paper The display quality of display screen, can get again solid and reliable structure, it is provided that a kind of good looking appearance, excellent performance, it is easy to manufacture and Long-lived Flexible Displays terminal, to solve the quality problem of flexible electronic paper display device.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that a kind of good looking appearance, property Can be outstanding, it is easy to manufacture, the reliable and long-lived flexible electronic paper display device of structure.
For solving above-mentioned technical problem, this utility model provides a kind of flexible electronic paper display device, including cover plate, flexible Electronics paper membrane, drives backboard, flexible circuit board, it is characterised in that: described flexible electronic paper membrane is connected to form soft with driving backboard Property electronic paper display panel, is provided with optical clear glue-line, described flexible electrical between described cover plate and flexible electronic paper display floater Sub-paper display floater is provided with water resistant oxygen protecting film away from the side of cover plate, and described flexible electronic paper display floater periphery is provided with encapsulation Structure, described flexible circuit board is connected with driving backboard.
Described encapsulating structure is simultaneously connected with cover plate and flexible electronic paper display floater, and covers flexible electronic paper display floater And the gap between cover plate and step.
The material of described optical clear glue-line is OCA optical cement, and the thickness of described optical clear glue-line is more than 50 microns.
The thickness of described optical clear glue-line is 50-300 micron.
Described cover plate is curved surface cover plate, and material can be plastics, safety glass, pottery or sapphire, described the size of the cover plate More than flexible electronic paper display floater, described driving backboard uses flexible deflection material, and described flexible deflection material is permissible It is polyethylene terephthalate, cyclic olefin polymer, PEN, polyimides, Merlon, polyethers Sulfone, polymethyl methacrylate or the thickness thin glass less than 0.2 millimeter.
Described flexible electronic paper membrane is Electrophoretic display medium.
Described water resistant oxygen protecting film can be inorganic protective film, organic protective film or composite film, and described water resistant oxygen is protected The thickness of cuticula is below more than 50 nanometers and 1000 nanometers.
The material of described encapsulating structure is that water vapor protects glue, and described water vapor protection glue is optic-solidified adhesive or heat cure Glue, the thickness of described water vapor protection glue is more than 50 microns.
This utility model is reached to provide the benefit that: use the flexible electronic paper display device of said structure, the most existing Like product structure is had to significantly reduce interference and the loss of light so that display picture is more true to nature, decreases product thickness, also Having display picture and will not enter the advantages such as dust, seamless the combining closely between flexible electronic paper screen and transparent cover plate adds dress The mechanical strength put, improves device stability, it is also possible to be applicable to the curve flexibility display device of electronic paper of abnormity cover plate, with Time, this structure can prevent steam from laterally permeating from display medium Electronic Paper, solves flexible electronic paper lateral moisture barrier problem, carries High device stability, in the extension fixture life-span, has good looking appearance, excellent performance, it is easy to manufacturing, structure is reliable and long-lived Advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of flexible electronic paper display device of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is the structural representation of a kind of exemplary embodiment of the present utility model, as it is shown in figure 1, curve flexibility electronics Paper display device includes cover plate 1, flexible electronic paper membrane 3, drives backboard 4, and flexible circuit board 7, cover plate 1 is curved strengthened glass lid Plate, drives backboard 4 to use flexible deflection material, flexible electronic paper membrane 3 to be connected to form flexible electronic paper with driving backboard 4 and shows Panel 10, cover plate 1 size is more than flexible electronic paper display floater 10, is provided with between cover plate 1 and flexible electronic paper display floater 10 Optical clear glue-line 2, the thickness of optical clear glue-line 2 is 50-300 micron, and flexible electronic paper display floater 10 is away from cover plate 1 Side is provided with water resistant oxygen protecting film 5, and the thickness of water resistant oxygen protecting film 5 is below more than 50 nanometers and 1000 nanometers, flexible electronic Paper display floater 10 periphery is provided with encapsulating structure 6, and encapsulating structure 6 is simultaneously connected with cover plate 1 and flexible electronic paper display floater 10, and Covering the gap between flexible electronic paper display floater 10 and cover plate 1 and step, the material of encapsulating structure 6 is water vapor protection Glue, the thickness of water vapor protection glue is more than 50 microns, and flexible circuit board 7 is connected with driving backboard 4.
In above-mentioned curve flexibility display device of electronic paper, the material of each ingredient all has multiple choices:
Cover plate 1 material can be plastics, safety glass, pottery or sapphire, and these material hardness are relatively big, can be the most anti- Only rub cut;When select plastics etc. flexible preferably material is as cover plate material time, by can the holding curved surface of relatively limits The overall flexibility of flexible electronic paper display device so that it is be more suitable for wearable device etc. and easily in use produce dynamic bending The use environment of deformation, when selecting the preferable materials of hardness such as safety glass as cover plate material, then can be to a certain degree The flexibility of upper reservation curve flexibility display device of electronic paper, and reach more preferable protected effect and use texture, exemplary embodiments In curved strengthened glass cover plate be i.e. made up of 3D abnormity globoidal glass.When the size of the cover plate is more than flexible electronic paper display floater Time, the curve flexibility display device of electronic paper formed has been provided with good outward appearance globality and structural stability, Ke Yizhi Connect to be fixed in required environment and use, decrease component count, simplify assemble flow, facilitate production application.
Optical clear glue-line 2 uses two-sided laminating type to connect cover plate 1 and flexible electronic paper display floater 10, and its material can The OCA optical cement conventional with employing touch screen field or UV glue (ultraviolet cured adhesive), it is high that OCA optical cement layer has transmitance (more than 99%), caking property is strong, high temperature resistant, and non-yellowing without being layered and being prone to the advantages such as processing, refractive index is close with glass, can be big Width reduces light line reflection, minimizing appears fiber-loss thus promotes brightness, makes picture the most clear, strengthens the display of screen Effect, therefore as preferred material.On the one hand optical clear glue-line stabilizes cover plate as binding agent and shows with flexible electronic paper The structure of panel, reduces device thickness, on the other hand also possesses good flexibility, does not affect curve flexibility Electronic Paper display dress The overall flexibility put is expressed, and also can fit from the cover plate perfection of different profiles, has also filled up cover plate simultaneously and has shown with flexible electronic paper Show the space between panel, make the impurity such as dust, steam be not easily accessible device and produce interference.
Flexible electronic paper membrane 3 can be the electrophoresis showed medium of microcapsule, micro-cup, it is also possible to be electrowetting layer, the most micro- Encapsulated electrophoretic display medium.
Drive backboard 4 to make for flexible deflection material, polyethylene terephthalate (polyethylene can be used Terephthalate, PET), cyclic olefin polymer (polycyclic olefin, PCO), PEN (polyethylene naphthalene, PEN), polyimides (polyimide, PI), Merlon (polycarbonate, PC), polyether sulfone (polyether sulphone, PES) or polymethyl methacrylate (Polymethyl Methacrylate, PMMA) etc., it is possible to use thin glass (thickness is less than 0.2mm).
Drive on backboard 4 dot-matrix drive circuit that can be to make and have TFT drive circuit, it is also possible to be preset with figure Passive matrix circuit.Under TFT active driving design, drive backboard 4 upper surface can include that multiple thin film transistor (TFT) is (in figure Do not show), thin film transistor (TFT) can be that the processing procedure array such as non-crystalline silicon or low temperature polycrystalline silicon is formed at driving backboard 4 upper surface;Also Can be that organic thin film transistor array is formed at driving backboard 4 upper surface;Under the passive matrix of preset pattern designs, drive Show electrode (not shown) on backboard 4 is the most corresponding preset pattern.Drive the shape of backboard 4 upper surface drive circuit One-tenth is to be realized by patterning process, uses photoetching process or printing technology, and finishing patterns processing procedure, to increase pliability, in fact Existing deflection electronic paper display panel.The flexible electronic paper display floater 10 of deflection under the effect of optical clear glue-line to different The structure adaptability of shape cover plate 1 is higher.
Water resistant oxygen protecting film 5 has stop steam and the characteristic of shielding of ultraviolet (UV), it is possible to use inorganic protective film, its Middle inorganic protective film may include that SiOx, SiNx, SiON, Al2O3 etc.;By chemical deposition (CVD), sputtering (sputter) or Person's coating (coating) mode forms passivation layer, and its thickness can be more than 50nm and below 1000nm.Water resistant oxygen protecting film 5 Can also be organic protective film, organic protective film may include that general common polymer (PMMA, PS), has phenol (phenol) polymeric derivative of group, acrylic polymer, acid imide macromolecule, aryl oxide family macromolecule, amide-type Macromolecule, fluorine family macromolecule, xylol family macromolecule, vinyl alcohol macromolecule and mixture thereof etc..Water resistant oxygen protecting film 5 is also It can be the composite film for inorganic insulating membrane and organic insulating film.The water oxygen permeability of water resistant oxygen protecting film 5 is less than 0.1g/ m2/day。
The material of encapsulating structure can be that water vapor protects glue, and water vapor protection glue can be optic-solidified adhesive or heat cure Glue, selects water vapor protection glue to be as the advantage of encapsulating structure, can be good to curve flexibility display device of electronic paper Each several part assembly be attached and encapsulate fixing, also can intercept steam simultaneously, protect intraware, nor affect on curve flexibility The overall flexibility of display device of electronic paper is expressed.
In the manufacture method of above-mentioned curve flexibility display device of electronic paper, by the most curved for flexible electronic paper display floater 10 Bent molding, and form integral installation by hot pressing, deaeration, fitting with cover plate 1 of solidification electron-lucent glue-line 2 when the most flexible Put, middle very close to each other.Flexible electronic paper membrane 2 by heat lamination mode with drive backboard 4 connect, flexible electronic paper membrane 2 with drive The electrical connection of dynamic backboard 4 is realized by transfer electrode.For realizing the connection of curve flexibility display device of electronic paper and external system, Directly can be connected with external system by flexible circuit board 7;Can also be by straight for the part of driving chip or drive circuit Connect and be arranged at driving backboard 4 upper surface, then be connected with external system by described flexible circuit board 7.It is this area skill Well known to art personnel, repeat no more.
Described curve flexibility display device of electronic paper, display performance is outstanding, and OCA integration is fitted, stabilize cover plate with The structure of flexible electronic paper display floater, reduces device thickness, can fix in the way of directly taking buckle or lock screw, Decrease the assembly problem that laminating deviation is brought, width of fitting need not be considered, it is possible to achieve narrower frame, it helps narrow frame Design, simplifies assembling procedure, reduces assembly cost, and thinner module thickness designs for structure and provides greater flexibility, than As controlled at about 0.3mm by the general thickness of curve flexibility display device of electronic paper, can be arranged directly on bank card etc. light On thin object, play extra function improving product class.
This utility model is mainly for the manufacture of a kind of flexible electronic paper display device, and the most existing like product structure is significantly Reducing interference and the loss of light so that display picture is more true to nature, decreases product thickness, also having display picture will not enter The advantages such as dust, the OCA integrated design between flexible electronic paper screen and cover plate adds the mechanical strength of device, improves device Part stability, it is adaptable to various abnormity cover plates, meanwhile, this structure can prevent steam from laterally permeating from display medium Electronic Paper, solves Certainly flexible electronic paper lateral moisture barrier problem, improves device stability, in the extension fixture life-span, has good looking appearance, and performance is excellent Elegant, it is easy to manufacture, the reliable and long-lived advantage of structure.
Above example limits this utility model never in any form, every does above example in equivalent transformation mode Other gone out improves and application, broadly falls into protection domain of the present utility model.

Claims (8)

1. a flexible electronic paper display device, including cover plate, flexible electronic paper membrane, drives backboard, flexible circuit board, its feature It is: between described cover plate and flexible electronic paper membrane, be provided with optical clear glue-line, described flexible electronic paper membrane and driving backboard phase Even composition flexible electronic paper display floater, described flexible electronic paper display floater is provided with the protection of water resistant oxygen away from the side of cover plate Film, described flexible electronic paper display floater periphery is provided with encapsulating structure, and described flexible circuit board is connected with driving backboard.
A kind of flexible electronic paper display device the most according to claim 1, it is characterised in that: described encapsulating structure connects simultaneously Connect cover plate and flexible electronic paper display floater, and cover the gap between flexible electronic paper display floater and cover plate and step.
A kind of flexible electronic paper display device the most according to claim 2, it is characterised in that: described optical clear glue-line Material is OCA optical cement, and the thickness of described optical clear glue-line is more than 50 microns.
A kind of flexible electronic paper display device the most according to claim 3, it is characterised in that: described optical clear glue-line Thickness is 50-300 micron.
A kind of flexible electronic paper display device the most according to claim 4, it is characterised in that: described cover plate is curved surface lid Plate, material can be plastics, safety glass, pottery or sapphire, and described the size of the cover plate is more than flexible electronic paper display floater, institute Stating driving backboard and use flexible deflection material, described flexible deflection material can be polyethylene terephthalate, ring Olefin polymer, PEN, polyimides, Merlon, polyether sulfone, polymethyl methacrylate or thickness Thin glass less than 0.2 millimeter.
A kind of flexible electronic paper display device the most according to claim 5, it is characterised in that: described flexible electronic paper membrane is Electrophoretic display medium.
A kind of flexible electronic paper display device the most according to claim 6, it is characterised in that: described water resistant oxygen protecting film can To be inorganic protective film, organic protective film or composite film, the thickness of described water resistant oxygen protecting film be more than 50 nanometers and Below 1000 nanometers.
A kind of flexible electronic paper display device the most according to claim 7, it is characterised in that: the material of described encapsulating structure Being that water vapor protects glue, described water vapor protection glue is optic-solidified adhesive or heat-curable glue, and the thickness of described water vapor protection glue is big In 50 microns.
CN201620546458.1U 2016-06-07 2016-06-07 A kind of flexible electronic paper display device Active CN205827027U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110382194A (en) * 2017-03-30 2019-10-25 迪睿合株式会社 The manufacturing method and Optical devices of Optical devices
CN112269289A (en) * 2020-10-13 2021-01-26 江苏仕邦柔性电子研究院有限公司 Flexible electronic paper display device and manufacturing method thereof
CN113643615A (en) * 2021-08-13 2021-11-12 京东方科技集团股份有限公司 Display panel manufacturing method, display panel and display device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110382194A (en) * 2017-03-30 2019-10-25 迪睿合株式会社 The manufacturing method and Optical devices of Optical devices
CN110382194B (en) * 2017-03-30 2022-06-17 迪睿合株式会社 Method for manufacturing optical device and optical device
CN112269289A (en) * 2020-10-13 2021-01-26 江苏仕邦柔性电子研究院有限公司 Flexible electronic paper display device and manufacturing method thereof
WO2022077526A1 (en) * 2020-10-13 2022-04-21 江苏仕邦柔性电子研究院有限公司 Flexible electronic paper display device and manufacturing method therefor
CN113643615A (en) * 2021-08-13 2021-11-12 京东方科技集团股份有限公司 Display panel manufacturing method, display panel and display device
CN113643615B (en) * 2021-08-13 2023-02-10 京东方科技集团股份有限公司 Display panel manufacturing method, display panel and display device

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Address after: 214101 room 8, industrial park, Guangtai Electric Appliance Technology Co., Ltd. (No. 3, Rongyang 1st Road, Yunlin, Xishan District, Wuxi City, Jiangsu Province)

Patentee after: Wuxi bairou Photoelectric Technology Co.,Ltd.

Address before: 210003 room 318, building a, No. 128, Railway North Street, Gulou District, Nanjing, Jiangsu Province

Patentee before: Nanjing Bairou Optoelectronics Technology Co.,Ltd.