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Display panel and display device

A technology for display panels and array substrates, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve the problems of poor pressure sensing effect of display panels, etc., achieve the average initial capacitance, improve sensitivity, pressure The effect of high induction effect

Active Publication Date: 2017-02-08
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure sensing effect of the existing display panels is poor and needs to be improved.

Method used

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  • Display panel and display device
  • Display panel and display device
  • Display panel and display device

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As described in the background art, with the development of electronic technology, the sensing electrode block can be reused as pressure sensing electrode in the display panel. Time-driven, the touch scanning, display scanning and pressure scanning are performed in time series, and in the pressure scanning stage, the touch pressure is determined according to the change of the capacitance of the pressure sensing capacitor. Howev...

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Abstract

The present invention provides a display panel and a display device. The display panel comprises electrode block groups; the electrode block group comprises at least two adjacent electrode blocks; each electrode block group is electrically connected to a connection unit; the connection unit is used for, in a pressure scanning phase, electrically connecting the capacitances consisting of each electrode block in the electrode block group and floating electrode layers to be the combined capacitance, and in a touch scanning phase and the display scanning phase, making each electrode block in the electrode block group be isolated from each other. In the pressure scanning phase, it is ensured that the difference between the electric capacity feed backed by the combined capacitance and the independent capacitance in an initial state phase, and the preset electric capacity is in a preset range, so that the initial electric capacity feed backed by the combined capacitance and the independent capacitance of the entire display panel is relatively average, then the signal to noise ratio of the pressure detection can be improved, implementation of initial electric capacity compensation in the panel can be facilitated, sensitivity of pressure sensing can be improved, and a relatively high pressure sensing effect of the display panel can be ensured.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background technique [0002] In the initial stage of the development of the touch display, the touch display panel is formed by laminating the touch panel and the display panel to realize the touch display. The touch panel and the display panel need to be prepared separately, which has high cost, large thickness and low production efficiency. With the development of integrated touch and display technology, the common electrode of the array substrate in the display panel can also be used as the sensing electrode block for self-capacitance touch detection. Through time-division driving, touch scanning and display scanning can be performed in time-division. , which can realize touch and display functions at the same time. In this way, the touch sensing electrodes are directly integrated in the display panel, which greatly re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0418G06F3/044G06F2203/04112
Inventor 郑超陈仲怀杨康鹏
Owner XIAMEN TIANMA MICRO ELECTRONICS
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