CN218767734U

CN218767734U - Flexible color filter

Info

Publication number: CN218767734U
Application number: CN202223497674.6U
Authority: CN
Inventors: 陈伟岸; 谢芯瑀; 高启仁; 何志; 刘海燕; 陈虹杉
Original assignee: Jyflex Technology Co ltd
Current assignee: Jyflex Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-03-28
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to an electronic paper technical field specifically discloses a flexible color filter, including the filtering picture layer of coating on transparent substrate, the filtering picture layer includes a plurality of electrically conductive filtering units, and each electrically conductive filtering unit connects and forms an electrode. The conductive light filtering unit comprises a patterned red light resistance blue light resistance and a patterned green light resistance which are arranged in a staggered matrix. The utility model overcomes the problems of low light transmission of the transparent electrode layer and complex manufacturing process, improves the light transmittance of the filter layer, and also improves the white reflectivity and contrast of the product; the problem of low adhesive force of the transparent electrode layer is solved, the problem that an adhesive layer needs to be added in the transparent electrode layer and the filter layer in the prior production is solved, and the production process is optimized.

Description

Flexible color filter

Technical Field

The utility model relates to an electronic paper technical field specifically is a flexible color filter.

Background

Electronic paper, also called digital paper. It is an ultra-thin and ultra-light display screen, i.e. a display which is thin, soft and erasable like paper. In the form of a thin film, the electronic paper is a layer of electrically charged material, which is "coated" onto the film, and is an electronic ink.

In the prior art, a substrate is firstly manufactured, and a transparent electrode material is manufactured on the substrate by adopting a coating or sputtering process (the substrate material is selected from transparent materials such as PET, PS, PEN, PE, glass, PMMA and the like). Then, the filter is manufactured on the transparent electrode. In a specific embodiment, refer to patent 202210132388.5, which is a multifunctional upper layer structure based on electrophoretic display, including a transparent substrate, a light scattering layer, a protective layer, a filter layer, a conductive layer, and a touch layer, where the light scattering layer, the protective layer, the filter layer, the conductive layer, and a touch component layer are disposed on one side or/and the other side of the transparent substrate, and the touch layer is disposed on the top of one side or the other side of the transparent substrate. However, the electronic paper manufactured by the process has low transmittance and low adhesion of the transparent electrode layer, and an adhesion layer needs to be added in the transparent electrode layer and the filter layer, so that the light transmittance of the filter layer is further reduced.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a flexible color filter can overcome the problem that transparent electrode layer's printing opacity is low, promotes the luminousness of filter layer, has just also promoted the white reflectivity and the contrast of product.

The purpose of the utility model is realized through the following technical scheme: a flexible color filter comprises a filtering layer coated on a transparent substrate, wherein the filtering layer comprises a plurality of conductive filtering units, and each conductive filtering unit is connected to form an electrode; the conductive light filtering unit is a patterned light resistor arranged in a matrix.

Further, the light resistors comprise red light resistors, blue light resistors and green light resistors which are circularly and alternately arranged.

Further, the photoresist comprises a rectangular main filter block and a connecting block connected to the upper edge of one side of the main filter block; each connecting block is also connected with the main filtering blocks of the adjacent conductive filtering units to form a transverse row.

Furthermore, gaps are left between the transverse rows.

The utility model has the advantages that: the utility model directly coats the filtering layer on the transparent substrate, thereby overcoming the problem of low light transmission of the transparent electrode layer in the prior art, improving the light transmittance of the filtering layer, and also improving the white reflectivity and contrast of the product; the problem of among the prior art because of transparent electrode layer adhesive force low, must increase the adhesive layer in transparent electrode layer and filter layer to influence the transmittance is solved.

Drawings

Fig. 1 is a schematic structural diagram of a filter in the prior art.

Fig. 2 is a schematic structural diagram of the flexible color filter of the present invention.

Fig. 3 is a schematic diagram of the arrangement structure of the conductive filtering unit of the present invention.

In the figure: 1-a transparent substrate; 2-a transparent electrode; 3-a light filtering layer; 31-red photoresist; 32-blue photoresist; 33-green photoresist; 311-main filter block; 312-connecting block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, the utility model discloses a flexible color filter, including the filtering layer 3 of coating on transparent substrate 1, filtering layer 3 includes a plurality of electrically conductive filtering units, and each electrically conductive filtering unit connects and forms an electrode, electrically conductive filtering unit is the patterned photoresistance of being the matrix and arranging. Because the light filtering pattern layer is directly coated on the transparent substrate, a transparent electrode layer is omitted, and the light transmittance is increased.

The photoresist of this embodiment includes red photoresist 31, blue photoresist 32 and green photoresist 33 which are alternately arranged in a cycle.

The photoresist of this embodiment includes a rectangular main filter block 311 and a connection block 312 connected to an upper edge of one side of the main filter block 311; each connection block 312 is also connected to the main filter block 311 of the adjacent conductive filter unit in a row. Since the connecting blocks 312 are spaced between the two main filter blocks 311, a blank space is left, and the light transmittance of the filter is further increased.

In the present embodiment, gaps are left between the horizontal rows formed by the conductive filter units, which also serves to increase the light transmittance of the filter.

The manufacturing process of the utility model is as follows:

1. respectively stirring and mixing a transparent electrode material (preferably a high polymer material, not limited to carbon nano tubes, graphene, nano silver wires, ITO and the like), a patterning material (preferably a positive and negative photoresist material) and red, green and blue pigments to respectively form red, yellow and blue patterning materials;

2. uniformly coating a red patterning material on a material substrate (preferably PET), and drying to form a substrate with a whole red pigment;

3. rubbing the red substrate (preferably, an exposure process is carried out, a specially-made photomask is attached to the whole red substrate, exposure is carried out through a UV lamp, and the pattern on the photomask is rubbed on the red substrate;

4. dissolving the exposed (or unexposed) part by using a liquid medicine (preferably a developer) to obtain a substrate with a red photoresist;

5. repeating the steps 2-4 to sequentially manufacture the green light resistor and the blue light resistor on the substrate to obtain the product shown in the figure 3;

6. finally, the product of fig. 3 is cured (preferably by baking, not limited to UV, condensation, etc.) to obtain the final product.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The flexible color filter is characterized by comprising a light filtering layer (3) coated on a transparent substrate (1), wherein the light filtering layer (3) comprises a plurality of conductive light filtering units, and each conductive light filtering unit is connected to form an electrode; the conductive light filtering unit is a patterned photoresist arranged in a matrix.

2. The flexible color filter according to claim 1, wherein the light resistors comprise red light resistors (31), blue light resistors (32) and green light resistors (33) alternately arranged in a cycle.

3. The flexible color filter according to claim 1, wherein the photoresist comprises a rectangular main filter block (311) and a connection block (312) connected to an upper edge of one side of the main filter block (311); each connecting block (312) is also connected with the main filtering blocks (311) of the adjacent conductive filtering units to form a transverse row.

4. The flexible color filter according to claim 3, wherein gaps are left between the rows.