TOUCH SCREEN PANEL DISPLAY AND TOUCH KEY INPUT SYSTEM

• US 20140327631A1
• Filed: 12/20/2013
• Published: 11/06/2014
• Est. Priority Date: 05/02/2013
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Jung-Hoon, SON, Yoon-Kook, LEE, Heon-Seok
• Application Number:
  US14/135,771
• Publication Number:
  US 20140327631A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A Touch Screen Panel (TSP) display and touch key input apparatus comprises a TSP display providing detected touch coordinate information via a plurality of sensing channels. A touch key has a touch key sensor connected to a particular one of the plurality of sensing channels. A touch recognition unit distinguishes between a first touch input via the TSP display and a second touch input via the touch key sensor, in response touch detection scanning of the plurality of sensing channels. Also, the touch recognition unit identifies the distinguished first touch input and second touch input.

Claims

1. A Touch Screen Panel (TSP) display and touch key input apparatus comprising:

a TSP display providing detected touch coordinate information via a plurality of sensing channels;

a touch key having a touch key sensor connected to a particular one of the plurality of sensing channels; and

a touch recognition unit for,

distinguishing between a first touch input via the TSP display and a second touch input via the touch key sensor, in response touch detection scanning of the plurality of sensing channels and

identifying the distinguished first touch input and second touch input.

2. The TSP display and touch key input apparatus of claim 1, wherein the touch recognition unit comprises:

a touch controller for sensing at least one touch coordinates of a touch via one of the TSP display and the touch key sensor by scanning the sensing channels; and

a processor for recognizing the touch as one of the first touch input with respect to the TSP display and the second touch input with respect to the touch key sensor based on whether the at least one touch coordinate comprise both an X-axis coordinate and a Y-axis coordinate.

3. The TSP display and touch key input apparatus of claim 2, wherein the processor recognizes the touch as the first touch input with respect to the touch key sensor, if the at least touch coordinate comprises a single one of, the X-axis coordinate or the Y-axis coordinates of an axis corresponding to a sensing channel connected to the touch key sensor.

4. The TSP display and touch key input apparatus of claim 3, wherein the processor identifies a touch key matched to touch coordinate of the second touch input in preset TSP key matrix information, and

the TSP key matrix information comprises information in which a touch key corresponding to the touch key sensor is mapped to coordinates corresponding to a sensing channel connected to the touch key sensor.

5. The TSP display and touch key input apparatus of claim 2, wherein the processor recognizes the touch as the second touch input with respect to the TSP display if the at least touch coordinate comprises both the X-axis coordinate and the Y-axis coordinate.

6. The TSP display and touch key input apparatus of claim 1, wherein the touch key sensor is implemented in a region other than the TSP display on a rear surface of window glass disposed on the TSP display.

7. A method for detecting input from both a Touch Screen Panel (TSP) display and a touch key, comprising:

sensing at least one touch coordinate of a touch via one of the TSP display and the touch key by scanning a plurality of sensing channels of the TSP display, the touch key having a touch key sensor being connected to a particular one of the plurality of sensing channels and being located outside an area of the TSP display;

distinguishing between a first touch input via the TSP display and a second touch input via the touch key sensor, in response touch detection scanning of the plurality of sensing channels; and

identifying the distinguished first touch input and second touch input.

8. The method of claim 7, wherein the distinguishing comprises recognizing the touch as one of the first touch input with respect to the TSP display and the second touch input with respect to the touch key sensor based on whether the at least one touch coordinate comprise both an X-axis coordinate and a Y-axis coordinate.

9. The method of claim 8, wherein the distinguishing comprises recognizing the touch as the second touch input with respect to the touch key sensor, if the at least one touch coordinate comprise a single one of either the X-axis coordinate or the Y-axis coordinates of an axis corresponding to a sensing channel connected to the touch key sensor.

10. The method of claim 9, further comprising identifying a touch key matched to touch coordinate of the second touch input in preset TSP key matrix information, wherein the TSP key matrix information comprises information in which a touch key corresponding to the touch key sensor is mapped to coordinate corresponding to a sensing channel connected to the touch key sensor.

11. The method of claim 8, wherein the distinguishing comprises recognizing the touch as the first touch input with respect to the TSP display if the at least one touch coordinate comprises both an X-axis coordinate and a Y-axis coordinate.