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in-cell type touch panel and method for manufacturing the same

An in-cell, touch panel technology, applied in instruments, computing, electrical and digital data processing, etc., can solve the problems of reducing the storage capacitance of pixels and reducing the display capacity of the panel, so as to increase the storage capacitance and improve the display effect. , the effect of improving yield

Active Publication Date: 2019-04-26
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure reduces the storage capacitance of the pixel, especially when the PPI (the number of pixels per inch) is higher, the storage capacitance is smaller, which reduces the display capability of the panel

Method used

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  • in-cell type touch panel and method for manufacturing the same
  • in-cell type touch panel and method for manufacturing the same
  • in-cell type touch panel and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Combine below Figure 3 to Figure 7 This embodiment will be described in detail.

[0043] An In-cell touch panel in this embodiment includes:

[0044] A wiring layer 2 for transmitting signals on one side of the color filter 1, and the wiring layer 2 includes a plurality of wirings;

[0045] An insulating layer 3 on the wiring layer 2, the insulating layer 3 includes a plurality of via holes 3a;

[0046] On the black matrix layer 4 on the insulating layer 3, the black matrix layer 4 is divided into a plurality of independent black matrix touch units.

[0047] like image 3 As shown, the black matrix layer 4 is distributed with the effective display area and the periphery of the color filter, the black matrix layer of the periphery is divided from the black matrix layer of the effective display area, and the black matrix layer of the effective display area of ​​the color filter 1 4 Divide the pixel into multiple independent black matrix touch units.

[0048] Multipl...

Embodiment 2

[0062] A method for manufacturing an In-cell touch panel in this embodiment includes the following steps:

[0063] A wiring layer 2 for transmitting signals is formed on one side of the color filter 1, and the wiring layer 2 includes a plurality of wirings;

[0064] An insulating layer 3 is formed on the wiring layer 2, and the insulating layer 3 includes a plurality of via holes 3a.

[0065] A black matrix layer 4 is formed on the insulating layer 3, so that the black matrix layer 4 is divided into a plurality of independent black matrix touch units, and a plurality of wires correspond to a plurality of independent black matrix touch units, and a plurality of via holes 3a are connected to the plurality of independent black matrix touch units. A plurality of independent black matrix touch units correspond to each other, and the black matrix touch units are connected to corresponding wirings through corresponding via holes 3a.

[0066] Based on the above specific implementatio...

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Abstract

The invention discloses an In-cell touch panel and a manufacturing method thereof, and belongs to the technical field of display. The problem of small storage capacitance of the In-cell touch panel is solved. The In-cell touch panel disclosed by the invention comprises a wiring layer located on one side of a color filter for transmitting signals, an insulating layer on the wiring layer, and a black matrix layer on the insulating layer, wherein the insulating layer comprises a plurality of through holes, the black matrix layer is divided into a plurality of independent black matrix touch layers, a plurality of wires correspond to the plurality of independent black matrix touch layers, and the plurality of through holes correspond to the plurality of independent black matrix touch layers and are conducted with the corresponding wires by corresponding through hole black matrix touch units. The storage capacitance of pixels is increased at last. According to the manufacturing method of the In-cell touch panel disclosed by the invention, the wring layer and the black matrix layer are formed on the color filter to increase the storage capacitance of the pixels at last.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an In-cell touch panel and a manufacturing method thereof. Background technique [0002] Touch technology has developed rapidly in recent years. The existing touch panel, according to the location of the touch unit, can be divided into two types: the touch unit is covered on the liquid crystal box (On Cell), and the touch unit is embedded in the liquid crystal box. In-cell (In Cell) and the touch unit is connected to the display panel (Out Cell). [0003] like figure 1 and figure 2 As shown, in the traditional self-capacitive In cell touch panel structure, a metal layer is deposited on the Array side of the thin film transistor glass (TPT glass) as a wiring for transmitting touch signals. The bottom indium tin oxide (B-ITO) in the active display (AA) area is divided into several separate small areas. Each small area acts as a touch unit (Sensor pad), and the touch units are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044G02F1/1333
CPCG02F1/13338G06F3/0412G06F3/044G06F2203/04103
Inventor 王聪
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD