Display panel and display device

A technology for display panels and array substrates, which is applied in the fields of instruments, computing, and electrical digital data processing, etc. It can solve the problems of poor pressure sensing effects of display panels, achieve average initial capacitance, increase sensitivity, and high pressure sensing effects

Active Publication Date: 2019-08-09
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 following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] As mentioned in the background, with the development of electronic technology, the sensing electrode blocks can be reused as pressure sensing electrodes in the display panel. The touch scan, the display scan and the pressure scan are time-sequentially driven, and in the pressure scan phase, the touch pressure is determined according to the capacitance change of the pressure sensing capacitor. However, the pressure-sensing effect of the existing display ...

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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 specifically, 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, the cost is high, the thickness is relatively large, and the production efficiency is low. With the development of touch display integration technology, the common electrode of the array substrate in the display panel can also be used as the sensing electrode block for self-capacitive touch detection, and the touch scanning and display scanning can be performed in time-sequence through time-sharing driving. , the touch and display functions can be realized at the same time. In this way, the touch sensing electrodes are directly integrated into the di...

Claims

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Application Information

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Patent Type & Authority Patents(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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