Display device and touch control method therefor

Patent metadata

Field	Value
Publication number	US-12399587-B2
Application number	US-202117913801-A
Country	US
Kind code	B2
Filing date	Sep 29, 2021
Priority date	Sep 29, 2021
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Provided are a display device and a touch control method therefor. The display device includes a display panel, a touch screen disposed on the display panel, and a processor connected to the display panel and the touch screen; the display panel including a display area and a non-display area. The display device further comprises: a driver located in the non-display area of the display panel. The processor is further configured to generate, according to the touch position and the touch control action, a modulation signal corresponding to the touch position and the touch control action; and the driver is configured to receive the modulation signal corresponding to the touch position and the touch control action sent by the processor, and drive the touch screen to perform full-screen vibration.

First claim

What is claimed is:

1. A display device, comprising: a display panel, a touch screen disposed on the display panel, and a processor connected to the display panel and the touch screen; wherein the display panel comprising a display area and a non-display area;
the touch screen is configured to detect a touch position of a finger in real time and sending the touch position to the processor;
the processor is configured to determine a touch control action of the finger according to the received touch position of the finger, and to control the display panel to display according to the touch position and the touch control action;
the display panel is configured to:
display a progress bar; the progress bar comprising N sections, N is a positive integer; each section comprising: one first scale point, a plurality of second scale points and a plurality of scale intervals, one scale interval of the plurality of scale intervals is located between the one first scale point and one of the plurality of second scale points, or between two corresponding scale points of the plurality of second scale points; and

the progress bar is a circle or a strip; and
indicate the touch position of the finger on the progress bar under the control of the processor by displaying a progress bar indicator for indicating the touch position of the finger on the progress bar; wherein,

the display device further comprises: a driver located in the non-display area of the display panel;
the processor is further configured to generate, according to the touch position and the touch control action, a modulation signal corresponding to the touch position and the touch control action; and
the driver is configured to receive the modulation signal corresponding to the touch position and the touch control action sent by the processor, and to drive the touch screen to perform a full-screen vibration;
wherein the processor, when generating, according to the touch position and the touch control action, the modulation signal corresponding to the touch position and the touch control action, is further configured to:
generate a first modulation signal in a case that the progress bar is a circle or a strip, the touch position is located at a first scale point in the first to N-th sections, and the touch control action is a staying action; or
generate a second modulation signal in a case that the progress bar is the circle or the strip, the touch position of the finger is located at a second scale point in the first to N-th sections, and the touch control action is the staying action; or
generate a third modulation signal in a case that the progress bar is the circle, the touch position of the finger is located at a scale interval in the first to N sections, and the touch control action of the finger is a clockwise rotating or a counterclockwise rotating; or
generate fourth to (N+3)-th modulation signals in a case that the progress bar is in strip-shaped, the touch position of the finger is located in the scale intervals of the first to N-th sections, and the touch control action of the finger is an action of sliding up and down or an action of sliding left and right.

2. The display device according to claim 1 , wherein the touch control action is one of the following: a staying action, a clockwise rotating, a counterclockwise rotating, an action of sliding up and down, and an action of sliding left and right.

3. The display device according to claim 1 , wherein the first modulation signal and the second modulation signal are the same or different.

4. The display device according to claim 3 , wherein the first modulation signal and the second modulation signal are both tone burst signals; and
the first modulation signal and the second modulation signal being different comprises:
amplitude of the tone burst signal of the first modulation signal is greater than amplitude of the tone burst signal of the second modulation signal; wherein
the tone burst signal comprises one or more sinusoidal signals of full cycle.

5. The display device according to claim 4 , wherein a frequency of the sinusoidal signal of the tone burst signal ranges from 100 Hz to 1 KHz, and the number of repeated cycles of the tone burst signal ranges from 5 to 20.

6. The display device according to claim 1 , wherein the third modulation signal is a sinusoidal signal, with a frequency of 20 KHz to 100 KHz, the number of repeated cycles of 200 to 2000, and amplitude of 50 V to 200 V.

7. The display device according to claim 1 , wherein the fourth to (N+3)-th modulation signals each is a signal of a sinusoidal signal superposed by a Sinc function, and Sinc functions for the fourth to (N+3)-th modulation signals are different in amplitude and frequency.

8. The display device according to claim 1 , wherein,
the display panel, when being configured to indicate the touch position under the control of the processor, is further configured to:
indicate the touch position of the finger on the progress bar with the progress bar indicator under the control of the processor.

9. A touch control method for a display device, the display device comprising a display panel, a touch screen disposed on the display panel, and a processor connected to the display panel and the touch screen; the display panel comprising a display area and a non-display area; the display device further comprising: a driver located in the non-display area of the display panel; wherein the method comprises:
detecting a touch position of a finger in real time and sending the touch position to the processor;
determining a touch control action of the finger according to the received touch position of the finger, and controlling the display panel to display according to the touch position and the touch control action;
displaying a progress bar; the progress bar comprising N sections, N is a positive integer;
each section comprising: one first scale point, a plurality of second scale points and a plurality of scale intervals, one scale interval of the plurality of scale intervals is located between the one first scale point and one of the plurality of second scale points, or between two corresponding scale points of the plurality of second scale points; and the progress bar is a circle or a strip; and
indicating the touch position of the finger on the progress bar under the control of the processor by displaying a progress bar indicator for indicating the touch position of the finger on the progress bar;
generating, according to the touch position and the touch control action, a modulation signal corresponding to the touch position and the touch control action; and
receiving the modulation signal corresponding to the touch position and the touch control action sent by the processor, and driving the touch screen to perform a full-screen vibration;
wherein the generating, according to the touch position and the touch control action, a modulation signal corresponding to the touch position and the touch control action comprises:
generating a first modulation signal in a case that the progress bar is a circle or a strip, the touch position is located at a first scale point in the first to N-th sections, and the touch control action is a staying action; or
generating a second modulation signal in a case that the progress bar is the circle or the strip, the touch position of the finger is located at a second scale point in the first to N-th sections, and the touch control action is the staying action; or
generating a third modulation signal in a case that the progress bar is the circle, the touch position of the finger is located at a scale interval in the first to N sections, and the touch control action of the finger is a clockwise rotating or a coun

Assignees

• Beijing Boe Technology Dev Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Tao Yongchun
• Chen Yuju
• Wang Yingzi

Classifications

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G06F2203/014

  Force feedback applied to GUI · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title