Touch Display Device, Touch Display System, and Method for Adjusting Touch Area Thereof

• US 20110090257A1
• Filed: 07/12/2010
• Published: 04/21/2011
• Est. Priority Date: 10/20/2009
• Status: Abandoned Application

• Current Assignee: Acer, Inc.
• Original Assignee: Acer, Inc.
• Inventors: Ko, Chueh-Pin, Chen, Yu-Li
• Application Number:
  US12/834,058
• Publication Number:
  US 20110090257A1
• Time in Patent Office: Days
• US Class Current: 345/660
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184

Abstract

A touch display device, a touch display system, and a method for adjusting a touch area thereof are disclosed. The touch display system comprises a computer system and the touch display device. The touch display device provides a touch area with a touch control function. The method comprises following steps: receiving an image signal and displaying an image representing the image signal on the touch display device; detecting and obtaining a signal resolution of the image signal; detecting and obtaining a display status displayed by the touch display device, wherein the signal resolution and the display status are used to determine the boundary of the image; determining whether the touch display device simultaneously displays the image and an inactive area, wherein the inactive area is the region where the touch display device does not display the image; and if yes, adjusting the coordinates of the touch area such that the touch area and the image correspond with each other.

Claims

1. A touch display device which is able to receive an image signal and display an image representing the image signal, wherein the touch display device comprises:

a touch control module, wherein the touch control module provides a touch area with control functions; and

a displaying device which is used to display an image, wherein the displaying device comprises a display status adjustment module to control the display status of the displaying device, wherein a signal resolution of the image signal and the display status are used to determine the boundary of the image;

wherein the display status adjustment module is used to determine the signal resolution of the image signal and the display status via the touch control module, and to determine whether the displaying device simultaneously displays the image and an inactive area, wherein the inactive area is the region on the displaying device where the image is not shown; and

if yes, the touch control module adjusts the coordinates of the touch area such that the touch area and the image correspond with each other.

2. The touch display device as claimed in claim 1, wherein the display status adjustment module uses a comparison table to find a corresponding signal of the signal resolution and the display status, or the corresponding signal can be directly calculated with the signal resolution and the display status;

the corresponding signal is then transferred to the touch control module to determine whether the image and the inactive area are displayed simultaneously on the displaying device.

3. The touch display device as claimed in claim 1, wherein the touch control module uses a comparison table to correspond with the signal resolution and the display status, or performs a direct calculation with the signal resolution and the display status to determine whether the image and the inactive area are displayed simultaneously on the screen.

4. The touch display device as claimed in claim 1, wherein the touch control module redefines the boundary of the inactive area to increase the operating range of the touch area, thus enabling the touch area to correspond with the boundary of the image.

5. The touch display device as claimed in claim 1, wherein the touch control module redefines the boundary of the inactive area to increase a new operating area, and displays a new operating image on the displaying device, such that the boundaries of the new operating area and the new operating image correspond with each other.

6. A touch display system comprising:

a computer system comprising an operating system used for transferring an image signal; and

a touch display device which is electrically connected with the computer system for receiving the image signal, and to display an image representing the image signal;

wherein the touch display device comprises;

a touch control module, wherein the touch control module provides a touch area with control functions; and

a displaying device which is used to display the image, wherein the displaying device comprises a display status adjustment module to control the display status of the displaying device, wherein a signal resolution of the image signal and the display status are used to determine the boundary of the image;

wherein the operating system is used to obtain the signal resolution of the image signal and the display status, and then determines whether the image and an inactive area are simultaneously shown on displaying device, wherein the inactive area is the region on the displaying device where the image is not shown; and

if yes, the touch control module or the operating system adjusts the coordinates of the touch area such that the boundaries of the touch area and the image correspond with each other.

7. The touch display system as claimed in claim 6, the operating system obtains the display status via the display status adjustment module.

8. The touch display system as claimed in claim 6, the operating system obtains the signal resolution and the display status via the display status adjustment module.

9. The touch display system as claimed in claim 6, wherein the operating system uses a comparison table to correspond with the signal resolution and the display status, or performs a direct calculation with the signal resolution and the display status to determine whether the image and the inactive area are displayed simultaneously on the displaying device.

10. The touch display system as claimed in claim 6, wherein the touch control module or the operating system redefines the boundary of the inactive area to increase the operating range of the touch area, thus enabling the touch area to correspond with the boundary of the image.

11. The touch display system as claimed in claim 6, wherein the touch control module redefines the boundary of the inactive area to increase a new operating area, and display a new operating image on the displaying device, and that the boundary of the new operating area and the new operating image correspond with each other.

12. A touch area adjustment method for a touch display device, wherein the touch display device comprises a touch area with control functions, the method comprises the following steps:

receiving an image signal and displaying an image representing the image signal on the touch display device;

detecting and obtaining a signal resolution of the image signal;

detecting and obtaining a display status displayed by the touch display device, wherein the signal resolution and the display status are used to determine the boundary of the image;

determining whether the touch display device simultaneously displays the image and an inactive area, wherein the inactive area is the region on the touch display device where the image is not shown; and

if yes, adjusting the coordinates of the touch area such that the touch area and the image correspond with each other.

13. The touch area adjustment method as claimed in claim 12, further comprises the following steps:

using an operating system to detect and obtain the signal resolution of the image signal; and

using a display status adjustment module to detect and obtain the display status.

14. The touch area adjustment method as claimed in claim 12, further comprises the following step:

using a display status adjustment module to detect and obtain the signal resolution of the image signal and the display status.

15. The touch area, adjustment method as claimed in claim 12, wherein the steps of adjusting the touch area further comprises the following step:

using an operating system to adjust the coordinates of the touch area such that the boundaries of the touch area and the image correspond with each other.

16. The touch area adjustment method as claimed in claim 15, further comprises the following steps:

redefining the boundary of the inactive area to increase the operating range of the touch area, thus enabling the touch area to correspond with the boundary of the image.

17. The touch area adjustment method as claimed in claim 12, wherein the steps of adjusting the touch area further comprises the following step:

using a touch control module to redefine the coordinates of the touch area, such that the boundary of the touch area and the image correspond with each other.

18. The touch area adjustment method as claimed in claim 17 further comprises the following step:

redefining the boundary of the inactive area to increase the operating range of the touch area, thus enabling the touch area to correspond with the boundary of the image.

19. The touch area adjustment method as claimed in claim 17 further comprises the following steps:

redefining the boundary of the inactive area to increase a new operating area; and

displaying a new operating image which allows the boundary of the new operating area and the new operating image to correspond with each other.

20. The touch area adjustment method as claimed in claim 12, wherein the step of determining whether the touch display device simultaneously displays the image and an inactive area further comprises the following step:

using a comparison table to correspond with the signal resolution and the display status;

or

performing direct calculation with the signal resolution and the display status.