CN110888282A - Color filter module and preparation method thereof, and color electronic paper and preparation method thereof - Google Patents

Color filter module and preparation method thereof, and color electronic paper and preparation method thereof Download PDF

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Publication number
CN110888282A
CN110888282A CN201911116664.3A CN201911116664A CN110888282A CN 110888282 A CN110888282 A CN 110888282A CN 201911116664 A CN201911116664 A CN 201911116664A CN 110888282 A CN110888282 A CN 110888282A
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CN
China
Prior art keywords
transparent conductive
conductive electrode
color filter
electrophoretic display
electronic paper
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Pending
Application number
CN201911116664.3A
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Chinese (zh)
Inventor
胡典禄
王喜杜
曾晞
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Guangzhou OED Technologies Co Ltd
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Guangzhou OED Technologies Co Ltd
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Priority to CN201911116664.3A priority Critical patent/CN110888282A/en
Publication of CN110888282A publication Critical patent/CN110888282A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1676—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

The invention provides a color filter module and a preparation method thereof, and color electronic paper and a preparation method thereof. The color filter module, the preparation method thereof, the color electronic paper and the preparation method thereof provided by the invention have better color display effect.

Description

Color filter module and preparation method thereof, and color electronic paper and preparation method thereof
Technical Field
The invention belongs to the technical field of color display, and particularly relates to a color filter module and a preparation method thereof, and color electronic paper and a preparation method thereof.
Background
Electronic paper, a "paper-like thin, flexible, erasable display", is becoming more and more popular in everyday use. In recent years, display devices are being developed to be light and thin and have low power consumption, and the appearance of electronic paper display devices is adapted to the development of the market and the demands of users. However, the current electronic paper display device mainly displays black and white, and more users require color display effects, and the development direction of electronic paper is gradually inclined to the color display direction. The current color electronic paper (refer to fig. 1) sequentially includes, from outside to inside, a substrate 7, a color filter 6, a transparent optical adhesive layer 2, a supporting layer 5, a transparent conductive electrode 4, an electrophoretic display layer 3, a transparent optical adhesive layer 2, and a driving back plate 1. The number of layers of the module is large, and the color display effect of the electronic paper is affected.
At present, in a process for realizing a color electronic paper display by using a color filter, the color filter (flexible membrane) is attached to an electronic paper module screen, the number of layers of the existing color electronic paper is large, the display effect of the electronic paper is seriously influenced, and the user experience is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a color filter module with a better display effect, a preparation method thereof, color electronic paper and a preparation method thereof.
The invention provides a color filter module which sequentially comprises a substrate, a color filter and a transparent conductive electrode from outside to inside, wherein the color filter module is used for being combined with a display, and the transparent conductive electrode is used for applying an electric signal to one end of the display.
Preferably, the color filter module is prepared as follows:
manufacturing a pixel structure color photoresist on a substrate by a yellow light process;
flattening the color light resistor by using an organic material to form a color filter;
and plating a transparent conductive electrode on the color filter.
Preferably, the transparent conductive electrode is an indium tin oxide layer.
The invention also provides the colored electronic paper, which sequentially comprises a substrate, a colored optical filter, a transparent conductive electrode, an electrophoretic display layer and a driving back plate from outside to inside, wherein the transparent conductive electrode and the driving back plate are used for applying electric signals to two ends of the electrophoretic display layer, and the transparent conductive electrode is formed on the colored optical filter.
Preferably, the protective film is arranged outside the substrate.
Preferably, the transparent conductive electrode is an indium tin oxide layer.
Preferably, the display device further comprises a transparent optical adhesive layer, wherein the transparent optical adhesive layer is used for adhering the electrophoretic display layer to the transparent conductive electrode or the driving back plate.
Preferably, the substrate is polyimide or polyethylene terephthalate or transparent glass.
The invention also provides a preparation method of the colored electronic paper, which comprises the following steps:
manufacturing a pixel structure color photoresist on a substrate;
flattening the light resistance to obtain a color filter;
plating a layer of transparent conductive electrode on the color filter;
coating the electrophoretic display liquid on the transparent conductive electrode or on the driving back plate to form an electrophoretic display layer;
when the electrophoretic display liquid is coated on the transparent conductive electrode to form an electrophoretic display layer, the electrophoretic display layer is attached to the driving back plate; and if the electrophoretic display liquid is coated on the driving back plate to form an electrophoretic display layer, the electrophoretic display layer is attached to the transparent conductive electrode.
Preferably, the driving back plate is a flexible driving back plate, the electrophoretic display liquid is coated on the flexible driving back plate in a roll-to-roll mode to obtain an electrophoretic display layer, and then the electrophoretic display layer is attached to the transparent conductive electrode.
The color filter module, the preparation method thereof, the color electronic paper and the preparation method thereof provided by the invention have better color display effect.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic diagram of a prior art color electronic paper according to the present invention;
FIG. 2 is a schematic structural diagram of a color electronic paper according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a color filter module according to an embodiment of the invention.
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 1-3, an embodiment of the invention provides a color filter module, referring to fig. 3, which includes a substrate 7, a color filter 6 and a transparent conductive electrode 4 in sequence from outside to inside, in which the color filter module is used for being combined with a display, and the transparent conductive electrode 4 is used for applying an electrical signal to one end of the display. The outer-to-inner in this embodiment means that the side first observed by the naked eye of the user is "outer" and the side combined with the display is "inner" in use. The transparent conductive electrode 4 is arranged on the color filter 6 in the embodiment, so that the color filter module not only has a color display effect, but also can be used as one of the electrodes for driving the display, and the color filter module can reduce the thickness of the whole color display, so that the color display has a better display effect.
In a preferred embodiment, the color filter module is prepared as follows:
manufacturing a pixel structure color photoresist on the substrate 7 by a yellow light process;
flattening the color photoresist by using an organic material to form a color filter 6; the organic material in this embodiment includes a transparent negative photoresist, such as polyimide, polyethylene organic material, etc.
The transparent conductive electrode 4 is plated on the color filter 6. In a preferred embodiment, the transparent conductive electrode 4 is a layer of indium tin oxide. In the prior art, the ito layer is generally disposed in the display, and a material such as PET is required to be used as the supporting layer 5 in the manufacturing process to form the transparent conductive electrode 4, so that the color display obtained by using the supporting layer 5 has increased thickness and poor color contrast.
The invention also provides color electronic paper, which sequentially comprises a substrate 7, a color filter 6, a transparent conductive electrode 4, an electrophoresis display layer 3 and a driving back plate 1 from outside to inside, wherein the transparent conductive electrode 4 and the driving back plate 1 are used for applying electric signals at two ends of the electrophoresis display layer 3, and the transparent conductive electrode 4 is formed on the color filter 6. The electrophoretic display layer 3 in this embodiment includes a curing medium and a plurality of microcapsules distributed in the curing medium, each of which contains an electrophoretic fluid and a plurality of electrophoretic pigment particles dispersed in the electrophoretic fluid. The electrophoretic particles move in the electrophoretic fluid under the drive of the transparent conductive electrode 4 and the drive back plate 1. The transparent conductive electrode 4 in this embodiment is an ito layer.
The transparent conductive electrode 4 of the color electronic paper provided by the embodiment is formed on the color filter 6, and the transparent conductive electrode 4 is not required to be supported by a base material such as PET, so that the thickness of the whole color electronic paper module is reduced, the color viewing angle is increased, the transmittance is improved, and the color saturation and the contrast of the color electronic paper are improved. In addition, in the embodiment, the transparent conductive electrode 4 does not need to be made into a membrane in advance, so that the preparation process is reduced and the cost is reduced.
In a preferred embodiment, a protective film is further included, which is disposed outside the substrate 7. The protective layer can be a PET layer and the like, so that the colored electronic paper has better waterproof and dustproof effects.
In a preferred embodiment, a transparent optical adhesive layer 2 is further included, and the transparent optical adhesive layer 2 is used for adhering the electrophoretic display layer 3 to the transparent conductive electrode 4 or the driving back plate 1. In this embodiment, the electrophoretic display layer 3 is obtained by coating electrophoretic display liquid on the driving back plate 1, the driving back plate 1 and the electrophoretic display liquid are used as a display module, the substrate 7, the color filter 6 and the transparent conductive electrode 4 are used as a color filter module, and the display module and the color filter module are combined through the transparent optical adhesive layer 2 to obtain the color electronic paper.
In a preferred embodiment, the substrate 7 is polyimide or polyethylene terephthalate or transparent glass. The substrate is glass and no protective film is required.
The embodiment of the invention also provides a preparation method of the colored electronic paper, which comprises the following steps:
manufacturing a pixel structure color light resistance on a substrate 7 of polyimide or polyethylene terephthalate or transparent glass;
flattening the light resistance by using a transparent organic material to obtain a color filter 6; the transparent organic material in this embodiment includes a transparent negative photoresist, such as polyimide, polyethylene organic material, etc.
Plating an indium tin oxide layer on the color filter 6 as a transparent conductive electrode 4;
coating the electrophoretic display liquid on the transparent conductive electrode 4 or on the driving back plate 1 to form an electrophoretic display layer 3;
after the electrophoretic display liquid is coated on the transparent conductive electrode 4 to form the electrophoretic display layer 3, the electrophoretic display layer 3 is attached to the driving backboard 1 through the transparent optical adhesive layer 2;
if the electrophoretic display liquid is coated on the driving back plate 1 to form the electrophoretic display layer 3, the electrophoretic display layer 3 is attached to the transparent conductive electrode 4 through the transparent optical adhesive layer 2.
In a preferred embodiment, the driving backplane 1 is a flexible driving backplane 1, the electrophoretic display liquid is roll-to-roll coated on the flexible driving backplane 1 to obtain an electrophoretic display layer 3, and then the electrophoretic display layer 3 is attached to the transparent conductive electrode 4. The preparation efficiency can be improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The color filter module is characterized by sequentially comprising a substrate, a color filter and a transparent conductive electrode from outside to inside, wherein the color filter module is used for being combined with a display, and the transparent conductive electrode is used for applying an electric signal to one end of the display.
2. The color filter module of claim 1, wherein the method of manufacturing comprises:
manufacturing a pixel structure color photoresist on a substrate by a yellow light process;
flattening the color light resistor by using an organic material to form a color filter;
and plating a transparent conductive electrode on the color filter.
3. The color filter module of claim 1, wherein the transparent conductive electrode is an indium tin oxide layer.
4. The color electronic paper is characterized by sequentially comprising a substrate, a color filter, a transparent conductive electrode, an electrophoresis display layer and a driving back plate from outside to inside, wherein the transparent conductive electrode and the driving back plate are used for applying electric signals at two ends of the electrophoresis display layer, and the transparent conductive electrode is formed on the color filter.
5. The colored electronic paper according to claim 4, further comprising a protective film disposed outside the substrate.
6. The colored electronic paper of claim 4, wherein the transparent conductive electrode is a layer of indium tin oxide.
7. The colored electronic paper of claim 4, further comprising a transparent optical adhesive layer for affixing the electrophoretic display layer to the transparent conductive electrode or the driving backplane.
8. The colored electronic paper according to claim 4, wherein the substrate is polyimide or polyethylene terephthalate or transparent glass.
9. The method for preparing colored electronic paper according to claim 4, comprising the steps of:
manufacturing a pixel structure color photoresist on a substrate;
flattening the light resistance to obtain a color filter;
plating a layer of transparent conductive electrode on the color filter;
coating the electrophoretic display liquid on the transparent conductive electrode or on the driving back plate to form an electrophoretic display layer;
when the electrophoretic display liquid is coated on the transparent conductive electrode to form an electrophoretic display layer, the electrophoretic display layer is attached to the driving back plate; and if the electrophoretic display liquid is coated on the driving back plate to form an electrophoretic display layer, the electrophoretic display layer is attached to the transparent conductive electrode.
10. The method for preparing the colored electronic paper according to claim 9, wherein the driving back plate is a flexible driving back plate, the electrophoretic display liquid is roll-to-roll coated on the flexible driving back plate to obtain an electrophoretic display layer, and then the electrophoretic display layer is attached to the transparent conductive electrode.
CN201911116664.3A 2019-11-15 2019-11-15 Color filter module and preparation method thereof, and color electronic paper and preparation method thereof Pending CN110888282A (en)

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Application Number Priority Date Filing Date Title
CN201911116664.3A CN110888282A (en) 2019-11-15 2019-11-15 Color filter module and preparation method thereof, and color electronic paper and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201911116664.3A CN110888282A (en) 2019-11-15 2019-11-15 Color filter module and preparation method thereof, and color electronic paper and preparation method thereof

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CN110888282A true CN110888282A (en) 2020-03-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112198732A (en) * 2020-10-21 2021-01-08 上海大学 Color electronic paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112198732A (en) * 2020-10-21 2021-01-08 上海大学 Color electronic paper

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