SCANNING CIRCUIT, DRIVER CIRCUIT, TOUCH DISPLAY PANEL, RECEIVER SWITCHING CIRCUIT, AND DRIVING METHOD
Download Read
Applicant
Ltd. BOE Technology Group Co.
Applicant
Ltd. Hefei Xinsheng Optoelectronics Technology Co.
Representative
Maiwald Patent- und Rechtsanwaltsgesellschaft mbH
Application number
EP18928990A1
Kind
A1
Document number
3889746
Shortcuts
→Abstract
→Claims

Classifications

SCANNING CIRCUIT, DRIVER CIRCUIT, TOUCH DISPLAY PANEL, RECEIVER SWITCHING CIRCUIT, AND DRIVING METHOD

3889746 - EP18928990A1 - EPO

Application Nov 30, 2018 - Publication Oct 06, 2021

Shifeng XU Xiaodong XIE Min HE Tengfei ZHONG Xinxiu ZHANG Bin PANG Yuan LI

Abstract

A scanning circuit, a driver circuit, a touch display panel, a receiving switching circuit and a driving method are disclosed. The scanning circuit (10) includes a function switching circuit (100) and a plurality of shift register units (200) that are cascaded. Each of the plurality of shift register units (200) that are cascaded includes a control terminal (CTRL1) and a shift scanning output terminal (OUT1), and is configured to output a first output signal at the shift scanning output terminal (OUT1) in response to a control signal received by the control terminal (CTRL1); the function switching circuit (100) includes a mode switching input terminal (SW), a control signal output terminal (CTRL2) and a mode scanning output terminal (OUT2), and the control signal output terminal (CTRL2) and the mode scanning output terminal (OUT2) are respectively connected to the control terminals (CTRL1) and the shift scanning output terminals (OUT1) of the plurality of shift register units (200) that are cascaded. The function switching circuit (100) is configured to output the control signal to the control terminals (CTRL1) of the plurality of shift register units (200) that are cascaded at the control signal output terminal (CTRL2) or to output a second output signal to the shift scanning output terminals (OUT1) of the plurality of shift register units (200) that are cascaded at the mode scanning output terminal (OUT2) in response to a mode switching input signal received at the mode switching input terminal (SW). The scanning circuit can realize fingerprint identification and touch control functions at any position in a display screen without greatly increasing the number of channels for driving the fingerprint identification units.

Description

Claims

Back to top

Statistics

Seen <100 times
Downloaded <100 times