Method for adjusting a display appearance of a keyboard layout displayed on a touch display unit

• US 20120146912A1
• Filed: 03/23/2011
• Published: 06/14/2012
• Est. Priority Date: 12/10/2010
• Status: Abandoned Application

• Current Assignee: Compal Electronics Incorporated
• Original Assignee: Compal Electronics Incorporated
• Inventors: Chen, Ta-Chang, Weng, Ming-Che, Lai, Maohu, Chen, Shi Kuan, Wang, Bo Chiang
• Application Number:
  US13/064,396
• Publication Number:
  US 20120146912A1
• Time in Patent Office: Days
• US Class Current: 345/168
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

A method for adjusting a display appearance of a keyboard layout displayed on a touch display unit includes the steps of: (A) detecting a first touch press at a start datum point of the touch display unit; (B) detecting a second touch press at a first position different from the start datum point; (C) detecting a motion track on the touch display unit; (D) computing a key pitch and a key size parameter of the keyboard layout, based on a relative position relationship between the start datum point and the first position; (E) computing a curvature and a curving mode of the keyboard layout, based on a shifting direction and a shifting distance of the motion track; and (F) adjusting a display appearance of the keyboard layout, based on the key pitch, the key size parameter, the curvature, and the curving mode.

Claims

1. A method for adjusting a display appearance of a keyboard layout displayed on a touch display unit, the keyboard layout having a plurality of key units, the touch display unit having a start datum point, the method comprising the steps of:

(A) detecting a first touch press at the start datum point;

(B) detecting a second touch press at a first position different from the start datum point;

(C) detecting a motion track on the touch display unit when the second touch press is dragged from the first position to a second position;

(D) computing a key pitch and a key size parameter of the keyboard layout, based on a relative position relationship between the start datum point and the first position on the touch display unit;

(E) computing a curvature and a curving mode of the keyboard layout, based on a shifting direction and a shifting distance of the motion track; and

(F) adjusting a display appearance of the keyboard layout, based on the key pitch, the key size parameter, the curvature, and the curving mode.

2. The method as claimed in claim 1, wherein the touch display unit comprises a display area, and the key pitch and the key size parameter are computed based on the relative position relationship between the start datum point and the first position on the touch display unit, with a size of the display area.

3. The method as claimed in claim 1, wherein the curving mode is an upward or downward curving mode.

4. The method as claimed in claim 1, wherein the touch display unit is a capacitive touch display screen or a resistive touch display screen.

5. The method as claimed in claim 1, wherein the first touch press is obtained by using an index finger of a user to press on the touch display unit.

6. The method as claimed in claim 5, wherein the second touch press is obtained by a middle finger of the user to press on the touch display unit.

7. A method for adjusting a display appearance of a keyboard layout displayed on a touch display unit, the keyboard layout having a plurality of key units, the method comprising the steps of:

(A) detecting a touch press respectively at four positions of the touch display unit;

(B) computing a key pitch and a key size parameter of the touch display unit based on a relative position relationships between the four positions of the touch display unit; and

(C) adjusting a display appearance of the keyboard layout based on the key pitch and the key size parameter.

8. The method as claimed in claim 7, wherein the touch display unit comprises a display area, and the key pitch and the key size parameter are computed based on the relative position relationship between the four positions of the touch display unit, with a size of the display area.

9. The method as claimed in claim 7, wherein the four touch presses are obtained by index, middle, ring, little fingers of a user to press on the touch display unit.

10. A method for adjusting a display appearance of a keyboard layout displayed on a touch display unit, the keyboard layout having a plurality of key units, the method comprising the steps of:

(A) detecting a first touch press on the touch display unit;

(B) detecting a second touch press on the touch display unit different from the first touch press;

(C) detecting a motion track on the touch display unit when the second touch press is dragged;

(D) computing a key pitch and a key size parameter of the keyboard layout, based on a relative position relationship between the first touch press and the second touch press on the touch display unit; and

(E) adjusting a display appearance of the keyboard layout based on the key pitch, the key size parameter and the motion track.

11. A keyboard with adjustable display appearance, comprising:

a touch display unit having a plurality of key units; and

a processing unit coupled to the touch display unit in order to detect a motion track on the touch display unit from a user and to adjust a display appearance of the key units based on the motion track.