DISPLAY APPARATUS AND TOUCH SENSING METHOD

• US 20110134071A1
• Filed: 05/17/2010
• Published: 06/09/2011
• Est. Priority Date: 12/07/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Jung-geun, SHIN, Jung-hoon, KIM, Yoo-tai, KIM, Jung-a, LEE, Dong-heon
• Application Number:
  US12/781,283
• Publication Number:
  US 20110134071A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04142 the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• 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 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06F 3/0436 in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate
• CPC Class Codes: G06F 3/0444 using a single conductive element covering the whole sensing surface, e.g. by sensing the electrical current flowing at the corners
• 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 and a touch sensing method are provided. The display apparatus includes a touch screen which senses a touch by a user using a plurality of sensing types; and a controller which selects a sensing type based on an application. Therefore, a user'"'"'s touch is sensed using an optimal sensing type for each application. In doing so, malfunction or inconvenience in manipulating the touch screen can be reduced.

Claims

1. A display apparatus, comprising:

a touch screen which senses a touch by a user using a plurality of sensing types; and

a controller which selects at least one of the plurality of sensing types based on one of a type of an application being executed and a display state of the application, and causes the touch to be sensed according to the selected at least one of the plurality of sensing types.

2. The display apparatus as claimed in claim 1, further comprising:

a storage unit which stores one of first information matching at least one application with the plurality of sensing types and second information matching the display state with the plurality of sensing types,

wherein the controller analyzes the first and second information, and selects said at least one of the plurality of sensing types to be applied to the application being executed.

3. The display apparatus as claimed in claim 1, wherein the plurality of sensing types comprise at least two of a resistive sensing type, a capacitive sensing type, a surface acoustic wave sensing type, an infrared sensing type, an optical sensing type, and a strain gauge sensing type.

4. The display apparatus as claimed in claim 3, wherein if the application being executed requires more dragging operations than a predetermined number per a predetermined time period, the controller selects the capacitive sensing type.

5. The display apparatus as claimed in claim 3, wherein if the application being executed requires more touch operations than a predetermined number per a predetermined time period, the controller selects the resistive sensing type.

6. The display apparatus as claimed in claim 3, wherein if the application being executed requires more touch operations than a predetermined number on a boundary of the touch screen, the controller does not select the infrared sensing type.

7. The display apparatus as claimed in claim 1, wherein if a plurality of applications are being executed, the controller controls that a respective sensing type is selected individually for each application, and that a current touch is sensed according to the respective sensing type which is selected based on the application currently activated on the touch screen among the plurality of applications.

8. A display apparatus, comprising:

a touch screen which senses a touch using a plurality of sensing types; and

a controller which selects one of a plurality of touch signals generated depending on the plurality of sensing types, based on one of a type of an application being executed and a display state of the application, and controls the application to be executed according to the selected touch signal.

9. A touch sensing method of a display apparatus operable to sense a touch using a plurality of sensing types, the touch sensing method comprising:

selecting at least one of the plurality of sensing types based on one of a type of an application being executed and a display state of the application;

sensing, at the display apparatus, the touch according to the selected at least one of the plurality of sensing types; and

operating the application based on the sensed touch.

10. The touch sensing method as claimed in claimed in claim 9, further comprising:

storing one of first information matching at least one application with the plurality of sensing types and second information matching the display state with the plurality of sensing types; and

analyzing the first and second information, and selecting said at least one of the plurality of sensing types to be applied to the application being executed.

11. The touch sensing method as claimed in claim 9, wherein the plurality of sensing types comprise at least two of a resistive sensing type, a capacitive sensing type, a surface acoustic wave sensing type, an infrared sensing type, an optical sensing type, and a strain gauge sensing type.

12. The touch sensing method as claimed in claim 11, wherein if the application being executed requires more dragging operations than a predetermined number per a predetermined time period, the selecting operation comprises selecting the capacitive sensing type.

13. The touch sensing method as claimed in claim 11, wherein if the application being executed requires more touch operations than a predetermined number per a predetermined time period, the selecting operation comprises selecting the resistive sensing type.

14. The touch sensing method as claimed in claim 11, wherein if the application being executed requires more touch operations than a predetermined number on a boundary of the touch screen, the selecting operation does not include selecting the infrared sensing type.

15. The touch sensing method as claimed in claim 9, wherein if a plurality of applications are being executed, the selecting operation includes selecting a respective sensing type individually for each application, and the sensing operation includes sensing a current touch according to the respective sensing type which is selected based on the application currently activated on the touch screen among the plurality of applications.

16. A touch sensing method of a display apparatus operable to sense a touch using a plurality of sensing types, the touch sensing method comprising:

selecting one of a plurality of touch signals generated depending on the plurality of sensing types, based on one of a type of an application being executed and a display state of the application;

sensing, at the display apparatus, the touch according to a selected one of the plurality of sensing types; and

operating the application according to the selected one of the plurality of touch signals.

17. A display apparatus, comprising:

a sensor which senses at least one type of a plurality of manipulation sensing types, wherein the sensor is operable to sense the plurality of manipulation sensing types; and

a controller which selects said at least one type of the plurality of manipulation sensing types based on at least one of a video currently being played back, a type of application being executed, and a display state of the application.

18. The display apparatus according to claim 17, wherein the sensor senses at least two types of the plurality of manipulation sensing types and the controller calculates a coordinate based on a result of sensing the at least two of the plurality of manipulation sensing types.

19. The display apparatus according to claim 18, wherein the controller calculates the coordinate based on an average of each of the at least two types of the plurality of manipulation sensing types.

20. A method of selecting a manipulation sensing type among a plurality of manipulation sensing types, the method comprising:

sensing at least one type of the plurality of manipulation types; and

selecting said at least one type of the plurality of manipulation sensing types based on at least one of a video currently being played back, a type of application being executed, and a display state of the application.

21. The method according to claim 20, wherein said sensing includes sensing at least two types of the plurality of manipulation sensing types;

and said method further comprises;

calculating a coordinate based on a result of sensing the at least two of the plurality of manipulation sensing types.

22. The method according to claim 21, wherein said calculating comprises calculating the coordinate based on an average of respective results of sensing each of the at least two types of the plurality of manipulation sensing types.