Display apparatus and control method thereof

• US 10,331,270 B2
• Filed: 09/18/2017
• Issued: 06/25/2019
• Est. Priority Date: 09/20/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Kim, Gwan-Hyung, Kim, Sang-ho, Shim, Hui-jun, Ha, Ji-hye
• Primary Examiner(s): Patel, Sanjiv D.
• Application Number:
  US15/706,940
• Publication Number:
  US 20180081492A1
• Time in Patent Office: 645 Days
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04108 Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/041661 using detection at multiple resolutions, e.g. coarse and fine scanning; using detection within a limited area, e.g. object tracking window
• CPC Class Codes: G06F 3/0442 using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A display apparatus is provided. The display apparatus includes a display and a controller. The display is configured to display an image and comprises a touch sensor for touch input within an assigned sensing section. The controller is configured to perform an operation corresponding to the touch input sensed within the sensing section, and to control the touch sensor to adjust the sensing section based on conditions for adjusting the sensing section. With this, the display apparatus and a control method thereof which can efficiently sense, without lowering the speed of sensing, a touch input based on a plurality of pens or fingers is provided.

Claims

1. The display apparatus comprising:

a display configured to display an image and comprising a touch sensor configured to sense a touch input within a frequency sensing section; and

a controller configured to;

based on a touch input within the frequency sensing section being sensed through the touch sensor, perform an operation corresponding to the sensed touch input, and

control the touch sensor to adjust the frequency sensing section based on a characteristic of the touch input to be sensed,

wherein the characteristic of the touch input includes at least one of;

a type, a strength, an input time, a speed, or an angle of the touch input.

2. The display apparatus according to claim 1, wherein the frequency sensing section comprises a first sensing section configured to sense a plurality of frequencies of touch inputs distributed at first intervals, and a second sensing section configured to sense a shift of the frequency distributed at second intervals smaller than the first interval, wherein the controller is configured to adjust at least one of the first sensing section and or the second sensing section.

3. The display apparatus according to claim 2, wherein the controller is configured to increase the second sensing section if a plurality of touch inputs corresponding to the plurality of frequencies is sensed in the first sensing section.

4. The display apparatus according to claim 2, wherein the controller is configured to identify the plurality of touch inputs based on the frequencies.

5. The display apparatus according to claim 2, wherein the controller is configured to identify at least one of:

a strength, an input time or an additional command of the touch input based on the shift of the frequency.

6. The display apparatus according to claim 1, wherein the touch sensor is configured to adjust the frequency sensing section by increasing and/or decreasing at least one of:

a length of the frequency sensing section or the number of frequency sensing sections within a unit time.

7. The display apparatus according to claim 1, wherein the controller is configured to adjust the frequency sensing section based on how close an input for making the touch input is to a touch screen.

8. The display apparatus according to claim 1, wherein the controller is configured to adjust the frequency sensing section based on at least one of:

the number, frequencies and kinds of touch inputs.

9. The display apparatus according to claim 1, wherein the controller is configured to adjust the frequency sensing section based on a precision required in sensing the touch input.

10. The display apparatus according to claim 1, wherein the controller is configured to adjust the frequency sensing section based on whether an application and/or function related to the touch input is activated and/or inactivated.

11. The display apparatus according to claim 1, wherein the controller is configured to adjust the frequency sensing section based on an adjustment command.

12. A method of controlling a display apparatus, the method comprising:

displaying an image and sensing a touch input within a frequency sensing section; and

performing an operation corresponding to the sensed touch input based on a touch input within the frequency sensing section being sensed through the touch sensor, and

adjusting the frequency sensing section based on a characteristic of the touch input to be sensed,

wherein the characteristic of the touch input includes at least one of;

a type, a strength, an input time, a speed, or an angle of the touch input.

13. The method according to claim 12, wherein the frequency sensing section comprises a first sensing section configured to sense a plurality of frequencies of touch inputs distributed at first intervals, and a second sensing section configured to sense a shift of the frequency distributed at second intervals smaller than the first interval, and

the method further comprising adjusting at least one of the first sensing section or the second sensing section.

14. The method according to claim 13, wherein the adjusting at least one of the first sensing section or the second sensing section comprises increasing the second sensing section if a plurality of touch inputs corresponding to the plurality of frequencies is sensed in the first sensing section.

15. The method according to claim 13, further comprising identifying the plurality of touch inputs based on the frequencies.

16. The method according to claim 13, further comprising identifying at least one of:

a strength, an input time or an additional command of the touch input based on the shift of the frequency.

17. The method according to claim 12, wherein the adjusting the frequency sensing section comprises adjusting the sensing section by increasing and/or decreasing at least one of:

a length of the sensing section or the number of sensing sections within a unit time.

18. The method according to claim 12, wherein the adjusting the frequency sensing section comprises adjusting the sensing section based on how close an input for making the touch input is to a touch screen.

19. The method according to claim 12, wherein the adjusting the frequency sensing section comprises adjusting the sensing section based on at least one of:

the number, frequencies or kinds of touch inputs.

20. The method according to claim 12, wherein the adjusting the frequency sensing section comprises adjusting the sensing section based on a precision required in sensing the touch input.