Methods of controlling touch sensitivity of a touch device

Abstract

A touch device includes a touch panel and a touch control circuit. A method for controlling the touch sensitivity of the touch device includes the touch control circuit determining the position of a touch event on the touch panel, the touch control circuit defining a first area on the touch panel based on the position of the touch event, the position of the touch event being within the first area, and the touch control circuit reducing the touch sensitivity of a second area on the touch panel outside the first area.

Claims

1. A method for controlling the touch sensitivity of a touch device, the touch device comprising a touch panel and a touch control circuit, the method comprising: The touch control circuit determines the location of a touch event on the touch panel; The touch control circuit defines a first area on the touch panel based on the location of the touch event, the location of the touch event being within the first area; and the touch control circuit reduces the touch sensitivity of a second area on the touch panel outside the first area.

2. The method as described in claim 1, wherein: The touch device further includes a key component and a temperature sensor disposed on the key component; and the method further includes: defining a third region based on at least a location of the key component, the key component being located within the third region; the temperature sensor monitoring a temperature of the key component; and the touch control circuit selectively reducing the touch sensitivity of the third region on the touch panel based at least on the temperature of the key component.

3. The method as described in claim 2, wherein: The third region is located outside the first region; the amount of reduction in the touch sensitivity of the third region depends on a temperature value of the key component; and the higher the temperature value of the key component, the greater the reduction in the touch sensitivity of the third region.

4. The method as described in claim 2, wherein: The first region and the third region have an overlapping area; and the reduction in touch sensitivity in the overlapping area, as well as the reduction in touch sensitivity in the third region excluding the overlapping area, both depend on a temperature value of the key component.

5. The method as described in claim 4, wherein: The higher the temperature value of the key component, the greater the reduction in touch sensitivity of the overlapping area and the third area excluding the overlapping area; and a high temperature value of the key component causes the reduction in touch sensitivity of the overlapping area to be less than that of the third area excluding the overlapping area.

6. The method as described in claim 1, wherein the touch control circuit reduces the touch sensitivity of the second region outside the first region on the touch panel by: The touch control circuit disables an analog front end connected to the second area.

7. The method as described in claim 1, further comprising: The touch control circuit predicts the next location of the touch event on the touch panel; The touch control circuit defines a third region on the touch panel based on the next position of the touch event, wherein the next position of the touch event is located within the third region; and the touch control circuit increases the touch sensitivity of the third region.

8. The method as described in claim 7, wherein the touch control circuit increases the touch sensitivity of the third region by: The touch control circuit enables an analog front end connected to the third area.

9. The method as described in claim 1, further comprising: The touch control circuit receives application information from a host system; The touch control circuit defines a third area on the touch panel based on the application information; and the touch control circuit reduces the touch sensitivity of the third area.

10. The method of claim 9, wherein the touch control circuit determines the location of the touch event on the touch panel by: The touch control circuit scans a fourth area on the touch panel, outside the third area, to detect the touch event.

11. The method as described in claim 10, further comprising: The touch control circuit scans the third region at a scan rate lower than that of the fourth region.

12. A method for controlling the touch sensitivity of a touch device, the touch device comprising a touch panel, a touch control circuit, a first key component, and a first temperature sensor, the first temperature sensor being disposed on the first key component, the method comprising: A first region is defined at least based on a location of the first key component, wherein the first key component is located in the first region; The first temperature sensor monitors a temperature of the first key component; and the touch control circuit selectively reduces the touch sensitivity of the first area based at least on the temperature of the first key component.

13. The method as described in claim 12, wherein: The extent of the decrease in touch sensitivity in the first area depends on at least one temperature value of the first key component.

14. The method as described in claim 12, wherein: The touch device further includes a second key component and a second temperature sensor disposed on the second key component; and the method further includes: defining a second region at least according to a location of the second key component, the second key component being located in the second region; the second temperature sensor monitoring a temperature of the second key component; and the touch control circuit selectively reducing the touch sensitivity of the second region at least according to the temperature of the second key component.

15. The method as described in claim 14, wherein: The second area is located outside the first area; The extent of the decrease in touch sensitivity in the second area depends on a temperature value of the second key component; The higher the temperature value of the second key component, the greater the reduction in touch sensitivity of the second area.

16. The method as described in claim 14, wherein: The first region and the second region have an overlapping area; the reduction in touch sensitivity of the second region excluding the overlapping area depends on a temperature value of the second key component; and the reduction in touch sensitivity of the overlapping area depends on a temperature value of the first key component and the temperature value of the second key component.

17. The method as described in claim 16, wherein: The higher the temperature value of the second key component, the greater the reduction in touch sensitivity of the overlapping area and the second area excluding the overlapping area; and a high temperature value of the first key component causes a greater reduction in touch sensitivity of the overlapping area than that of the second area excluding the overlapping area.

18. The method as described in claim 14, further comprising: The touch control circuit determines the location of a touch event on the touch panel; The touch control circuit defines a third region on the touch panel based on the location of the touch event, wherein the location of the touch event is located in the third region; and the touch control circuit reduces the touch sensitivity of a fourth region on the touch panel outside the third region.

19. The method as described in claim 18, wherein: The first region and the fourth region have an overlapping area; the touch sensitivity of the fourth region excluding the overlapping area is set by a preset reduction range; the reduction range of the touch sensitivity of the first region excluding the overlapping area depends on a temperature value of the first key component; and the reduction range of the touch sensitivity of the overlapping area depends on the temperature value of the first key component and the preset reduction range.

20. The method as described in claim 19, wherein: The higher the temperature value of the first key component, the greater the reduction in touch sensitivity of the overlapping area and the first area excluding the overlapping area; and a high temperature value of the first key component causes the reduction in touch sensitivity of the overlapping area to be greater than that of the first area excluding the overlapping area and the fourth area excluding the overlapping area.

21. The method as described in claim 18, wherein: The first region and the third region have an overlapping area; the third region excluding the overlapping area has a preset touch sensitivity; the reduction in touch sensitivity of the first region excluding the overlapping area depends on a temperature value of the first key component; and the reduction in touch sensitivity of the overlapping area depends on the temperature value of the first key component and the preset touch sensitivity.

22. The method as described in claim 21, wherein: The higher the temperature value of the first key component, the greater the reduction in touch sensitivity of the overlapping area and the first area excluding the overlapping area; and the high temperature value of the first key component causes the reduction in touch sensitivity of the overlapping area to be less than that of the first area excluding the overlapping area and the third area excluding the overlapping area.

23. The method as described in claim 18, further comprising: The touch control circuit predicts the next location of the touch event on the touch panel; The touch control circuit defines a fifth region based on the next position of the touch event on the touch panel, wherein the next position of the touch event is located within the fifth region; and the touch control circuit increases the touch sensitivity of the fifth region.

24. The method as described in claim 23, wherein: The first region and the fifth region have an overlapping area; the touch sensitivity of the fifth region, excluding the overlapping area, is set by a preset reduction range; the touch sensitivity reduction range of the first region, excluding the overlapping area, depends on a temperature value of the first key component; and the touch sensitivity reduction range of the overlapping area depends on the temperature value of the first key component and the preset reduction range.

25. The method as described in claim 14, further comprising: The touch control circuit receives application information from a host system; The touch control circuit defines a third area on the touch panel based on the application information; and the touch control circuit reduces the touch sensitivity of the third area.

26. The method as described in claim 25, further comprising: The touch control circuit scans the third region at a scan rate lower than that of a fourth region, which is outside the third region.

27. The method as described in claim 25, wherein: The first region and the third region have an overlapping area; the touch sensitivity of the third region excluding the overlapping area is set by a preset reduction range; the touch sensitivity reduction range of the first region excluding the overlapping area depends on the temperature value of the first key component; and the touch sensitivity reduction range of the overlapping area depends on the temperature value of the first key component and the preset reduction range.

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