Touch display panel and manufacturing method thereof

Abstract

The invention relates to the technical field of flat-panel displays and discloses a touch display panel and a manufacturing method thereof. The touch display panel at least comprises a touch substrate. The touch substrate at least comprises a substrate body, a first mask layer, a filter layer, a touch pattern layer and a second mask layer. The substrate body comprises a first surface and a second surface opposite to each other. The first mask layer forms on the first surface. The touch pattern layer forms on the first or second surface of the substrate body. A projection of the touch pattern layer on the first surface is covered by a projection of the first mask layer on the first surface. The filter layer forms on the first surface. The second mask layer forms on one side, far away from the substrate body, of the touch pattern layer; a projection of the second mask layer completely covers the projection of the touch pattern layer on the first surface, and the second mask layer and part of the filter layer are made together in the same process.

Description

technical field [0001] The invention relates to the field of flat panel display technology, in particular to a touch display panel and a manufacturing method thereof. Background technique [0002] The touch panel includes a touch sensing array for detecting touch behavior on the touch panel. The touch sensing array has a plurality of sensing electrodes in the horizontal direction and sensing electrodes in the vertical direction. Generally speaking, these sensing electrodes are usually made of transparent conductive material to allow the display panel below to display images through the touch panel. However, the conductivity of existing transparent conductive materials such as indium tin oxide (ITO) is not ideal, and excessive resistance will reduce the sensitivity of the overall touch panel. Therefore, there is a need for a sensing electrode with better sensing sensitivity. [0003] The industry continues to modify this transparent conductive material. For example, the pa...

AI Technical Summary

Problems solved by technology

However, although using metal as the touch electrode material can greatly reduce the resistance, due to the high reflectivity of metal, reflection phenomenon will occur, that is, when the light from the backlight illuminates the touch display screen, it will touch the touch surface of the metal. The electrode will reflect light, and the reflected light and the backlight will interfere with each other, which will affect the display effect. A touch display screen using metal as a conductive material is disclosed, wherein the touch electrodes are arranged on the shielding layer and between the transparent substrate and the shielding layer. When the light irradiates the touch screen, the metal will also reflect, and the reflected light and the backlight will interfere with each other, which will affect the display effect.

Therefore, no matter whether the metal touch electrodes are made above or below the shielding layer, it will affect the display effect of the touch screen.

[0004] In order to improve this display effect, the patent No. 201310119802.X, titled "A box substrate and its preparation method, touch screen, and display device" discloses a patent for making a black matrix on the metal touch electrode. To improve its display effect, however, this inevitably requires an additional photolithography process for making a black matrix, which is not conducive to the simplification of the process

Images