Color optical filter internally embedded with touch screen and preparing method of color optical filter

Abstract

The invention discloses a color optical filter internally embedded with a touch screen. The color optical filter comprises a substrate, a black matrix, a first metal layer, a color photoresistance layer, a transparent photoresistance layer and a second metal layer, and the substrate comprises a display area and a non-display area; the black matrix is formed on the substrate and is located in the non-display area; the first metal layer comprises multiple patterned touch control connecting lines, and the touch control connecting lines are located on the black matrix; the color photoresistance layer is formed on the substrate and located in the display area; the transparent photoresistance layer is formed on the color photoresistance layer and covers the touch control connecting lines; the second metal layer comprises multiple patterned touch control electrodes, and the touch control electrodes are arranged in the non-display area and oppositely located on the black matrix; the multiple touch control electrodes and the multiple touch control connecting lines are connected in a one-to-one corresponding mode, and the multiple touch control electrodes are electrically connected to the corresponding touch control connecting lines through passing holes formed in the transparent photoresistance layer. The invention further discloses a preparing method of the color optical filter internally embedded with the touch screen.

Description

technical field [0001] The invention relates to the technical field of touch displays, in particular to a color filter embedded with a touch screen and a preparation method thereof. Background technique [0002] With the development of the information age and the acceleration of the pace of life, touch technology has gradually replaced the traditional mouse and keyboard due to its humanized design and simple and fast input, and is widely used in various electronic products. Among them, the capacitive touch screen is widely used due to its advantages of fast response, high sensitivity, good reliability and high durability. [0003] According to the different settings of the touch sensing layer in the display panel, the touch display panel is divided into add-on mode, in-cell and on-cell structures. . The in-cell touch screen integrates the touch function into the display screen, so it can effectively reduce the thickness of the entire display and simplify the production pro...

AI Technical Summary

Problems solved by technology

In the process of etching and forming patterned touch electrodes, an etching solution is required. Usually, the etching solution contains strong oxidizing and corrosive acids, such as HNO 3 , during the etching process, the etchant contacts the color photoresist layer, resulting in serious variations in the chromaticity of the color photoresist layer, reducing the display quality of the display

Images