Touch substrate, display apparatus and driving method of display apparatus

A touch position and touch technology, which is applied to instruments, computing, electrical and digital data processing, etc., can solve the problems of large assembly tolerance and limited detection accuracy, and achieve the effect of eliminating parasitic capacitance.

Active Publication Date: 2017-05-10
BOE TECH GRP CO LTD +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, the way to achieve pressure sensing in the display field, especially in the field of mobile phones or tablets, is to add an additional mechanism to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances

Method used

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  • Touch substrate, display apparatus and driving method of display apparatus
  • Touch substrate, display apparatus and driving method of display apparatus
  • Touch substrate, display apparatus and driving method of display apparatus

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Embodiment Construction

[0028] The specific implementation manners of the touch substrate, the display device and the driving method thereof provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] The thickness and shape of each film layer in the drawings do not reflect the real scale, and the purpose is only to illustrate the content of the present invention.

[0030] A touch substrate provided by an embodiment of the present invention, such as figure 1 As shown, it includes a base substrate 01, and a touch detection electrode 02 disposed on the base substrate 01, and also includes:

[0031] The touch pressure driving electrode 03 and the touch pressure sensing electrode 04 that form a mutual capacitance structure are disposed between the film layer where the touch detection electrode 02 is located and the base substrate 01;

[0032] During the touch detection period, the touch detection signal is applied to the to...

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Abstract

The invention discloses a touch substrate, a display apparatus and a driving method of the display apparatus. Touch pressure driving electrodes and touch pressure induction electrodes, which are arranged between a film layer where touch detection electrodes are located and a substrate, and form a mutual capacitance structure, are added in the touch substrate; and when the touch substrate is pressed, the distance between the touch substrate and a metal layer below is reduced and a capacitance value of the mutual capacitance structure is correspondingly reduced. During a pressure detection time period, the touch pressure driving electrodes are loaded with touch driving signals, and semaphore changes of the touch pressure induction electrodes caused by a pressure of a touch position are detected, so that a capacitance value change of the mutual capacitance structure can be determined and a pressure induction function is realized. During a touch detection time period, the touch detection electrodes, the touch pressure driving electrodes and the touch pressure induction electrodes can be loaded with the same touch detection signals at the same time, and the capacitance value changes of all the touch detection electrodes are detected to judge the touch position, so that a two-dimensional touch detection function is realized.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch substrate, a display device and a driving method thereof. Background technique [0002] Pressure sensing technology refers to the technology that can detect external force. This technology has been used in industrial control, medical and other fields a long time ago. At present, the way to achieve pressure sensing in the display field, especially in the field of mobile phones or tablets, is to add an additional mechanism to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances. [0003] Therefore, how to realize the pressure sensing with high detection accuracy with little modification of the display panel hardware is an urgent problem to be solved by those skilled in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F2203/04107G02F1/13338G06F2203/04105G06F3/04166G06F3/0445G06F3/0443G02F1/13629G02F1/134309G02F1/136286G02F2201/121G06F3/047G06F2203/04103
Inventor 丁小梁董学王海生陈小川刘英明杨盛际赵卫杰刘伟李昌峰王鹏鹏任涛刘红娟
Owner BOE TECH GRP CO LTD
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