DISPLAY APPARATUS AND CONTROL METHOD THEREOF

• US 20150035796A1
• Filed: 06/23/2014
• Published: 02/05/2015
• Est. Priority Date: 07/30/2013
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: MIN, Kwan-sik, KIM, Dong-hyun, CHO, Eun-il, PARK, Han-jin
• Application Number:
  US14/311,507
• Publication Number:
  US 20150035796A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• 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
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

Disclosed are a display apparatus and a control method thereof, the display apparatus including: a display which displays an image; a touch panel which includes a plurality of pulse transmitting lines distributed with regard to a touch area of the touch panel, where voltage pulses are transmitted to the plurality of pulse transmitting lines, and a plurality of receiving lines distributed with regard to the touch area configured to detect a user'"'"'s touch input on the touch area based on the voltage pulses transmitted to the pulse transmitting lines; and a controller configured to control a number of the voltage pulses to the plurality of pulse transmitting lines, where the number of the voltage pulses transmitted to the plurality of pulse transmitting lines corresponding to a touch expectation area of the touch area is greater than those voltage pulses transmitted to other areas of the touch area.

Claims

1. A display apparatus comprising:

a display configured to display an image;

a touch panel which comprises a plurality of pulse transmitting lines distributed with regard to a touch area of the touch panel, wherein voltage pulses are transmitted to the plurality of pulse transmitting lines, and a plurality of receiving lines distributed with regard to the touch area configured to detect a user'"'"'s touch input on the touch area based on the voltage pulses transmitted to the pulse transmitting lines; and

a controller configured to control a number of the voltage pulses to the plurality of pulse transmitting lines, wherein the number of the voltage pulses transmitted to the plurality of pulse transmitting lines corresponding to a touch expectation area of the touch area is greater than those voltage pulses transmitted to other areas of the touch area.

2. The display apparatus according to claim 1, wherein the touch expectation area comprises an area for an item having a graphic user interface (GUI) which is displayed on the display.

3. The display apparatus according to claim 2, wherein the controller is configured to determine the area for the item using information provided by an application configured to display the item.

4. The display apparatus according to claim 2, wherein the controller recognizes the area for the item by analyzing an image being displayed on the display.

5. The display apparatus according to claim 1, wherein once the touch input is detected, the controller is configured to determine an area at a position, where the touch input is detected, to be the touch expectation area.

6. The display apparatus according to claim 5, wherein if the user'"'"'s touch input is moved, the controller is configured to move the touch expectation area along the movement of the touch input.

7. The display apparatus according to claim 1, further comprising a storage unit configured to store touch probability information given based on a probability that the user'"'"'s touch input will be generated at a predetermined position of the touch area,

wherein the controller determines the touch expectation area based on the touch probability information.

8. The display apparatus according to claim 7, wherein if the user'"'"'s touch input is detected, the controller is configured to update the touch probability information corresponding to a position where the touch input is detected.

9. The display apparatus according to claim 7, wherein the storage unit is configured to store the touch probability information provided corresponding to a plurality of applications or a plurality of users.

10. The display apparatus according to claim 1, wherein the user'"'"'s touch input is achieved by a user'"'"'s finger or a touch pen, and

a size of the touch expectation area is determined in accordance with the user'"'"'s finger and the touch pen.

11. The display apparatus according to claim 1, wherein the number of the voltage pulses transmitted to the plurality of pulse transmitting lines gradually increases the closer each of the plurality of pulse transmitting lines is to a center of the touch expectation area.

12. A method of controlling a display apparatus comprising a display for displaying an image, and a touch panel for detecting a user'"'"'s touch input, the method comprising:

transmitting voltage pulses to a plurality of pulse transmitting lines distributed with regard to a touch area of the touch panel;

detecting a user'"'"'s touch input on the touch area, based on the voltage pulses transmitted to the pulse transmitting lines; and

controlling a number of the voltage pulses transmitted to the plurality of pulse transmitting lines, wherein the number of the voltage pulses transmitted to the plurality of pulse transmitting lines corresponding to a touch expectation area of the touch area is greater than those voltage pulses transmitted to other areas of the touch area.

13. The method according to claim 12, wherein the touch expectation area comprises an area for an item of a graphic user interface (GUI) which is displayed on the display.

14. The method according to claim 13, wherein the controlling comprises determining the area for the item using information provided by an application configured to display the item.

15. The method according to claim 13, wherein the controlling comprises recognizing the area for the item by analyzing an image being displayed on the display.

16. The method according to claim 12, wherein the controlling comprises determining an area at a position, where the touch input is detected, to be the touch expectation area once the touch input is detected.

17. The method according to claim 16, further comprising moving the touch expectation area along with the movement of the touch input if the user'"'"'s touch input is moved.

18. The method according to claim 12, wherein the controlling comprises:

determining the touch expectation area based on touch probability information given based on a probability that the user'"'"'s touch input will be generated at a predetermined position of the touch area and stored in a storage unit.

19. The method according to claim 18, wherein the controlling comprises updating the touch probability information corresponding to a position where the touch input is detected, if the user'"'"'s touch input is detected.

20. The method according to claim 18, wherein the touch probability information is provided as corresponding to a plurality of applications or a plurality of users.

21. The method according to claim 12, wherein the user'"'"'s touch input is achieved by a user'"'"'s finger or a touch pen, and

the controlling comprises determining a size of the touch expectation area in accordance with the user'"'"'s finger and the touch pen.

22. The method according to claim 12, wherein the number of the voltage pulses transmitted to the plurality of pulse transmitting lines gradually increases the closer each of the plurality of pulse transmitting lines is to a center of the touch expectation area.