Touch display driving module, touch display driving method, and display device

Patent metadata

Field	Value
Publication number	US-12039121-B2
Application number	US-202117642813-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Jun 9, 2020
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A touch display driving module for performing a touch display driving operation on a display screen, a touch display driving method for the touch display driving module, and a display device are provided. The touch display driving module includes a touch detection chip, a time sequence touch control chip and a host. The time sequence touch control chip performs data calculation in accordance with a touch data signal to generate touch point coordinate information, generate touch point image information in accordance with the touch point coordinate information, and display the touch point image on a display screen in accordance with the touch point image information, the host performs control response in accordance with the touch point coordinate information to generate control response image information, and returns the control response image information, the time sequence touch control chip displays the control response image on the display screen.

First claim

What is claimed is:

1. A touch display driving module for performing a touch display driving operation on a display screen, comprising a touch detection chip and a time sequence touch control chip, wherein
the touch detection chip is configured to generate a touch data signal in accordance with a touch event;
the time sequence touch control chip is configured to perform data calculation in accordance with the touch data signal to generate touch point coordinate information, generate touch point image information in accordance with the touch point coordinate information, and display a touch point image on the display screen in accordance with the touch point image information; and
the touch point coordinate information is information carrying coordinates of a touch point, the touch point image is an image showing that the touch point is touched, and the touch point image information is display information corresponding to the touch point image,
wherein the touch display driving module further comprises a host, the time sequence touch control chip is further configured to transmit the touch point coordinate information to the host;
the host is configured to perform control response in accordance with the touch point coordinate information to generate control response image information, and return the control response image information to the time sequence touch control chip, and the control response image information is display information corresponding to the control response image; and
the time sequence touch control chip is further configured to display the control response image on the display screen in accordance with the control response image information, and the control response image is an image showing a response action after the display screen has been touched.

2. The touch display driving module according to claim 1 , wherein the time sequence touch control chip is specifically configured to display and render a pre-stored background image in accordance with the touch point coordinate information and preset coordinate pattern display information so as to generate the touch point image information, and the coordinate pattern display information carries a correspondence between the touch point coordinate information and the touch point pattern information.

3. The touch display driving module according to claim 2 , wherein the time sequence touch control chip comprises a touch control circuitry, a display control circuitry and a storage array; and
the touch detection chip is further configured to perform gain filtration on the touch data signal to generate a gain-filtered touch data signal, the touch control circuitry is configured to sample the gain-filtered touch data signal and calculate the gain-filtered touch data signal to obtain the touch point coordinate information, the pre-stored background image is pre-stored in the storage array, and the display control circuitry is configured to display and render the pre-stored background image in accordance with the touch point coordinate information and preset coordinate pattern display information to generate the touch point image information.

4. The touch display driving module according to claim 3 , wherein the display control circuitry comprises a time sequence control unit circuitry, the coordinate pattern display information is provided in the time sequence control unit circuitry, the touch control circuitry is electrically coupled to the storage array and configured to obtain the pre-stored background image and transmit the touch point coordinate information and the pre-stored background image to the time sequence control unit circuitry, and the time sequence control unit circuitry is configured to display and render the pre-stored background image in accordance with the touch point coordinate information and the coordinate pattern display information to generate the touch point image information.

5. The touch display driving module according to claim 3 , further comprising a host, wherein the touch control circuitry is further configured to transmit the touch point coordinate information to the host;
the host is configured to perform control response in accordance with the touch point coordinate information to generate control response image information, and return the control response image information to the time sequence control unit circuitry, and the control response image information is display information corresponding to the control response image; and
the time sequence control unit circuitry is further configured to display the control response image on the display screen in accordance with the control response image information, and the control response image is an image showing a response action after the display screen has been touched.

6. A touch display driving method for the touch display driving module according to claim 1 , comprising:
generating, by the touch detection chip, a touch data signal in accordance with a touch event;
performing, by the time sequence touch control chip, data calculation in accordance with the touch data signal to generate touch point coordinate information, generating, by the time sequence touch control chip, touch point image information in accordance with the touch point coordinate information, and displaying the touch point image on the display screen in accordance with the touch point image information;
transmitting, by the time sequence touch control chip, the touch point coordinate information to the host;
performing, by the host, control response in accordance with the touch point coordinate information to generate control response image information, and returning the control response image information to the time sequence touch control chip; and
displaying, by the time sequence touch control chip, the control response image on the display screen in accordance with the control response image information,
wherein the touch point image information is display information corresponding to the touch point image, the touch point coordinate information is information carrying coordinates of a touch point, and the touch point image is an image showing that the touch point is touched, the control response image information is display information corresponding to the control response image, the control response image is an image showing a response action after the display screen has been touched.

7. The touch display driving method according to claim 6 , wherein the generating, by the time sequence touch control chip, the touch point image in accordance with the touch point coordinate information comprises displaying and rendering, by the time sequence touch control chip, a pre-stored background image in accordance with the touch point coordinate information and preset coordinate pattern display information to generate the touch point image information, and the coordinate pattern display information carries a correspondence between the touch point coordinate information and the touch point pattern information.

8. The touch display driving method according to claim 6 , wherein the time sequence touch control chip comprises a touch control circuitry, a display control circuitry and a storage array, and a pre-stored background image is stored in the storage array;
the performing, by the time sequence touch control chip, data calculation in accordance with the touch data signal to generate touch point coordinate information comprises sampling, by the touch control circuitry, a touch data signal and performing gain filtration and calculation on the touch data signal to obtain the touch point coordinate information; and
the generating, by the time sequence touch control chip, touch point image information in accordance with the touch point coordinate info

Assignees

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

Inventors

• Yang Hong
• Meng Zhaohui

Classifications

• G09G5/20

  Function-generator circuits, e.g. circle generators {line or curve smoothing circuits} · CPC title

• G09G5/026 Primary

  Control of mixing and/or overlay of colours in general (G09G5/022 and G09G5/024 take precedence) · CPC title

• G09G2320/0252

  Improving the response speed · CPC title

• G09G5/377

  for mixing or overlaying two or more graphic patterns (G09G5/02, G09G5/397 take precedence) · CPC title

• G06F3/147

  using display panels · CPC title