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Embedded touch screen, driving method of embedded touch screen and display device

An embedded touch screen, touch position technology, applied in character and pattern recognition, instruments, electrical and digital data processing, etc.

Active Publication Date: 2015-08-19
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing touch screen, fingerprint identification needs to process the signals of all fingerprint touch reading lines in the display area, and the amount of data is relatively large, especially for large-size display screens, the amount of processed data is particularly large. As a result, the fingerprint recognition time is longer and the power consumption is larger

Method used

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  • Embedded touch screen, driving method of embedded touch screen and display device
  • Embedded touch screen, driving method of embedded touch screen and display device
  • Embedded touch screen, driving method of embedded touch screen and display device

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Embodiment Construction

[0040] The specific implementation manners of the in-cell touch screen provided by the preferred embodiments of the present invention, its driving method and the display device will be described in detail below with reference to the accompanying drawings.

[0041] An embedded touch screen provided by an embodiment of the present invention, such as figure 1 As shown, it includes a capacitive touch circuit 1, wherein the capacitive touch circuit includes a plurality of capacitive touch electrodes, and a touch sensor electrically connected to the capacitive touch electrodes for judging the touch position by detecting changes in capacitance values ​​of the capacitive touch electrodes. control detection chip; also includes: fingerprint identification circuit 2 and control module 3; wherein,

[0042] Such as figure 2 As shown, the fingerprint identification circuit 2 includes: photosensitive touch modules 21 arranged in a matrix, fingerprint touch scanning lines Scan connected to ...

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PUM

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Abstract

The invention discloses an embedded touch screen, a driving method of the embedded touch screen and a display device. The embedded touch screen comprises a capacitive touch circuit, a fingerprint recognition circuit and a control module. The capacitive touch circuit is used for judging the position. The fingerprint recognition circuit is used for recognizing a fingerprint in a corresponding area of a photosensitive touch module and generating a recognition signal, and outputting the recognition signal to a fingerprint touch reading line if a fingerprint touch scanning line has a touch scan signal. The control module is used for determining a fingerprint touch area according to a touch position after the capacitive touch circuit determines the touch position, outputting the touch scan signal to the fingerprint touch scanning line corresponding to the fingerprint touch area, and processing the recognition signal output by the fingerprint touch reading line corresponding to the fingerprint touch area. Therefore, fingerprint touch scanning time is shortened, data processing quantity is reduced, and fingerprint recognition time and power consumption are further reduced.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to an embedded touch screen, its driving method and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. At present, touch screens can be divided into: resistive, capacitive, infrared, surface acoustic wave, electromagnetic, vibration induction, and frustrated total internal reflection optical induction, etc. according to their working principles. Among them, the capacitive touch screen is sought after by the industry as a new favorite due to its unique touch principle, high sensitivity, long life, high light transmittance and other advantages. [0003] However, in the security-based personal verification system of the touch screen, the method of using a fingerprint recognition device for fingerprint recognition has been widely used. At present, the...

Claims

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Application Information

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IPC IPC(8): G06F3/044G06K9/00
CPCG06F3/0412G06F3/042G06F2203/04106G06F3/041661G06F3/0446
Inventor 刘英明董学王海生陈小川杨盛际杨明刘伟刘红娟王倩
Owner BOE TECH GRP CO LTD
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