In-cell touch liquid crystal panel and array substrate thereof

Abstract

The invention discloses an in-cell touch liquid crystal panel and an array substrate thereof. The array substrate comprises a glass substrate, a first metal layer, a second metal layer, a third metal layer and a common electrode layer, wherein the first metal layer, the second metal layer, the third metal layer and the common electrode layer are formed on the glass substrate and are mutually insulated; a plurality of scanning lines are arranged in the second metal layer; a plurality of connection lines are arranged in the third metal layer; the common electrode layer is segmented into a plurality of touch induction electrodes, and the touch induction electrodes are electrically connected to a touch detection chip through the connection lines; and a plurality of metal lines are also arranged in the second metal layer, the metal lines and the scanning lines are mutually insulated, and two ends of each metal line are independently electrically connected to the connection line just above the metal line, wherein a second direction and a first direction are mutually vertical. The in-cell touch liquid crystal panel and the array substrate thereof can reduce the impendence of the connection lines of the touch induction electrodes and improve touch flexibility.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to an embedded touch liquid crystal panel and an array substrate thereof. Background technique [0002] As an input medium, the touch display screen is currently the simplest and most convenient way of human-computer interaction, so the touch display screen is more and more applied to various electronic products. Based on different working principles and information transmission media, touch screen products can be divided into four types: infrared touch screen, capacitive touch screen, resistive touch screen and surface acoustic wave touch screen; among them, capacitive touch screen has long life, high light transmittance, and can support multiple Point touch and other advantages have become the current mainstream touch screen technology. Capacitive touch screens include surface capacitive and projected capacitive, and projected capacitive can be further divided into self-capacitive...

AI Technical Summary

Problems solved by technology

In the case that the length, thickness and resistivity of the third metal layer 6 remain unchanged, in order to reduce the impact of the trace impedance of the metal connection line 6a on the touch signal, if the width of a single metal connection line 6a is increased, then It will reduce the aperture ratio of the display area; if multiple metal connecting wires 6a are connected to one touch sensing electrode 5a in parallel, the total resistance of the wires will be reduced, but increasing the number of metal connecting wires 6a will increase the contact with the touch sensor. The coupling capacitance formed between the sensing electrodes 5a cannot improve the touch sensitivity

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