Color filter module and preparation method thereof, and color electronic paper and preparation method thereof
阅读说明：本技术 彩色滤光片模组及其制备方法、彩色电子纸及其制备方法 (Color filter module and preparation method thereof, and color electronic paper and preparation method thereof ) 是由 胡典禄 王喜杜 曾晞 于 2019-11-15 设计创作，主要内容包括：本发明提供一种彩色滤光片模组及其制备方法、彩色电子纸及其制备方法,所述彩色滤光片模组由外至内依次包括衬底、彩色滤光片和透明导电电极,所述彩色滤光片模组用于与显示器结合,所述透明导电电极用于在显示器一端施加电信号。本发明提供的彩色滤光片模组及其制备方法、彩色电子纸及其制备方法具有较好的彩色显示效果。(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.)
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.
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
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
In a preferred embodiment, the color filter module is prepared as follows:
manufacturing a pixel structure color photoresist on the
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
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
In a preferred embodiment, a transparent optical
In a preferred embodiment, the
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
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
after the electrophoretic display liquid is coated on the transparent conductive electrode 4 to form the
if the electrophoretic display liquid is coated on the driving back plate 1 to form the
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
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.
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