Touch display panel

A touch display panel and touch technology, which is applied in instruments, semiconductor devices, computing, etc., can solve the problems of different impedances of touch sensing signal lines, poor uniformity of touch sensing sensitivity of touch display panels, etc., to ensure touch control Performance, improvement of touch performance differences, and the effect of reducing impedance

Active Publication Date: 2020-09-15
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Usually, due to the different distribution positions of the touch sensing electrodes in the panel, the lengths of the touch sensing signal lines in the touch display panel are also different, resulting in different impedances of the touch sensing signal lines.
When the above-mentioned touch sensing electrodes output touch sensing signals through the touch signal lines electrically connected thereto, the difference in impedance may cause different time delays when different touch signal lines output touch sensing signals, and then Affects the poor uniformity of touch sensitivity of the touch display panel

Method used

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

A touch display panel comprises a substrate, a touch electrode layer and a plurality of touch signal lines, wherein the touch electrode layer and the touch signal lines are formed on the substrate. The touch electrode layer comprises a plurality of touch sensing blocks which are arranged in an array; the first ends of the touch signal lines are electrically connected with the corresponding touch sensing blocks, and the second ends of the touch signal lines extend to the fan-shaped wiring area and are electrically connected with a touch integrated circuit located in the fan-shaped wiring area;the touch control signal lines comprise first-type touch control signal lines and second-type touch control signal lines, and the distance between the first ends of the first-type touch control signallines and the touch control integrated circuit is smaller than the distance between the first ends of the second-type touch control signal lines and the touch control integrated circuit; and the first-type touch signal lines are single sub-signal lines, and the second-type touch signal lines are at least two sub-signal lines.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch display panel. Background technique [0002] Display devices mainly include liquid crystal display (LCD, liquid crystal display), plasma display panel (PDP, plasma display panel), organic electroluminescence (OLED, Organic light emitting diode), active matrix organic electroluminescence (AMOLED), It has a broad application space in vehicles, mobile phones, tablets, computers and TV products. [0003] With the rapid development of display technology, touch display technology has gradually pervaded people's lives. Among the existing touch display panels, compared with resistive touch display panels, capacitive touch display panels have the advantages of long life, high light transmittance, and support for multi-touch, and have become a hot spot in touch display technology. . [0004] The touch detection principle of the capacitive touch display panel is as fol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044H01L27/32
CPCG06F3/0412G06F3/0416G06F3/044H10K59/40H10K59/12G06F3/04164G06F3/0443G06F3/0446
Inventor 方亮彭宁昆
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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