Driving circuit, electronic device and communication method therefor

Patent metadata

Field	Value
Publication number	US-12287749-B2
Application number	US-202218245945-A
Country	US
Kind code	B2
Filing date	Apr 13, 2022
Priority date	Apr 13, 2022
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

A driving circuit includes a driver board and a slave processor. The driver board is configured to drive a touch panel of an electronic device. The slave processor is coupled to the driver board, and is configured to receive a control command including a first address when the driver board is in a power-off state, and send first response information in response to the control command. The driver board and the slave processor share the first address.

First claim

What is claimed is:

1. A driving circuit, comprising:
a driver board configured to drive a touch panel of an electronic device;
a master processor, the master processor being respectively coupled to the driver board and the slave processor; and
a slave processor coupled to the driver board, the slave processor being configured to receive a control command including a first address when the driver board is in a power-off state, and send first response information in response to the control command, wherein the driver board and the slave processor sharing the first address;
wherein the driving circuit further comprises, wherein the control command includes at least one of a touch turn-off command or a touch turn-on command, the touch turn-off command is used to turn off a touch function of the touch panel of the electronic device, and the touch turn-on command is used to turn on the touch function of the touch panel of the electronic device, wherein
the master processor is configured to send the touch turn-off command when the electronic device is in a sleep mode, or send the touch turn-on command when the electronic device is in a working mode.

2. The driving circuit according to claim 1 , wherein the slave processor is further configured to enter a sleep mode when the driver board is in a power-on state.

3. The driving circuit according to claim 1 , wherein the slave processor is coupled to the driver board through a first port thereof, and the slave processor is further configured to determine that the driver board is in the power-off state when a signal of the first port is a first signal, and determine that the driver board is in a power-on state when the signal of the first port is a second signal.

4. The driving circuit according to claim 3 , wherein the first signal is at a low level, and the second signal is at a high level.

5. The driving circuit according to claim 1 , wherein the first address includes an inter-integrated circuit (I2C) bus address.

6. The driving circuit according to claim 1 , wherein a power supply of the driver board is different from a power supply of the slave processor.

7. An electronic device, comprising: a touch panel; and the driving circuit according to claim 1 , the touch panel being coupled to the driver board.

8. A communication method for an electronic device, the communication method comprising:
sending a touch turn-off command to a driver board of the electronic device when the electronic device enters a sleep mode, the touch turn-off command being used to turn off a touch function of a touch panel of the electronic device;
controlling the driver board to be powered off after a first preset time from sending the touch turn-off command; and
receiving second response information from the driver board before the driver board is powered off, the second response information being sent by the driver board in response to the touch turn-off command;
the communication method further comprises:
controlling the driver board to be powered on when the electronic device enters a working mode;
sending a touch turn-on command to the driver board of the electronic device after a second preset time from the driver board is powered on, the touch turn-on command being used to turn on the touch function of the touch panel of the electronic device; and
receiving third response information from the driver board, the third response information being sent by the driver board in response to the touch turn-on command.

9. The communication method for the electronic device according to claim 8 , wherein the first preset time is related to at least one of an image refresh time, a driver board command parsing time, or a register initialization time.

10. The communication method for the electronic device according to claim 9 , wherein the first preset time is greater than or equal to a sum of the image refresh time, the driver board command parsing time, and the register initialization time.

11. The communication method for the electronic device according to claim 8 , wherein the second preset time is related to at least one of a driver board initialization time or a register initialization time.

12. The communication method for the electronic device according to claim 11 , wherein the second preset time is greater than or equal to a sum of the initialization time of the driver board and the initialization time of the register.

13. A non-transitory computer-readable storage medium, having stored computer program instructions that, when executed on a computer, cause the computer to: send a touch turn-off command to a driver board of the computer in response to an operation causing the computer to enter a sleep mode, the touch turn-off command being used to turn off a touch function of a touch panel of the computer; control the driver board to be powered off after a first preset time from sending the touch turn-off command; and receive second response information from the driver board before the driver board is powered off, the second response information being sent by the driver board in response to the touch turn-off command; the non-transitory computer-readable storage medium further having stored computer program instructions that, when executed on a computer, cause the computer to: control the driver board to be powered on when the electronic device enters a working mode; send a touch turn-on command to the driver board of the electronic device after a second preset time from the driver board is powered on, the touch turn-on command being used to turn on the touch function of the touch panel of the electronic device; and receive third response information from the driver board, the third response information being sent by the driver board in response to the touch turn-on command.

14. A computer program product, comprising computer program instructions which are stored in a non-transitory readable storage medium, wherein when the computer program instructions are executed on a computer, the computer program instructions cause the computer to perform the communication method for the electronic device according to claim 8 .

15. The communication method for the electronic device according to claim 8 , wherein the first preset time is greater than or equal to 20 ms.

16. The communication method for the electronic device according to claim 8 , wherein the second preset time is greater than or equal to 100 ms.

Assignees

• Chongqing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Luo Zhongli
• Dang Kangpeng
• Zuo Cheng
• Chen Hong
• Guo Xiong
• Wang Bo
• Li Kuan
• Zheng Yaokun
• Gao Ming
• Tang Yuansheng

Classifications

• G06F13/4291

  using a clocked protocol · CPC title

• G06F13/4022 Primary

  using switching circuits, e.g. switching matrix, connection or expansion network (G06F13/4009 takes precedence) · CPC title

• G06F13/4072 Primary

  Drivers or receivers (G06F13/4086 takes precedence; for multistate logic circuits H03K19/0002) · CPC title

• H04L12/06

  Answer-back mechanisms or circuits · CPC title

• G06F1/32

  Means for saving power · CPC title