TOUCH SCREEN, TOUCH SYSTEM AND METHOD FOR POSITIONING A TOUCH OBJECT IN TOUCH SYSTEM
First Claim
Patent Images
1. A touch screen, comprising:
- a main touch sensing apparatus adapted to sense positions of a touch point at different directions and output sensed signals; and
an infrared pair tube array disposed on an edge of said touch screen, adapted to sense the position of the touch point at array extending direction and output a sensed signal;
wherein the sensed signals outputted by said main touch sensing apparatus and the sense signal outputted by said infrared pair tube array are used to determine real position information of the touch point.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch screen, a touch system and a method for positioning a touch object in a touch system are disclosed. The touch screen comprises an infrared pair tube array, wherein said infrared pair tube array is disposed on an edge of said touch screen. By introducing the infrared pair tube array, the touch screen of the present invention eliminates invalid touch areas in the existing touch screen and avoids false touch points in multipoint positioning.
34 Citations
25 Claims
-
1. A touch screen, comprising:
-
a main touch sensing apparatus adapted to sense positions of a touch point at different directions and output sensed signals; and an infrared pair tube array disposed on an edge of said touch screen, adapted to sense the position of the touch point at array extending direction and output a sensed signal; wherein the sensed signals outputted by said main touch sensing apparatus and the sense signal outputted by said infrared pair tube array are used to determine real position information of the touch point. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11)
-
-
6. (canceled)
-
12. A method for positioning a touch point in a touch system, comprising:
-
acquiring preliminary two-dimensional position information of a touch point, and at the same time acquiring one-dimensional position information of the touch point at array extending direction using an infrared pair tube array; and determining real position information of said touch point according to said two-dimensional position information and said one-dimensional position the receiving status information. - View Dependent Claims (16, 17, 18, 19, 20)
-
-
13-15. -15. (canceled)
-
21. A touch system, comprising:
-
a main touch positioning system adapted to position a touch point to acquire preliminary two-dimensional position information of said touch point; one-dimensional position information positioning system including an infrared pair tube array adapted to determine one-dimensional position information of said touch point; and a processing unit connected to said main touch positioning system and said one-dimensional position information positioning system, adapted to determine real position information of said touch point according to the preliminary two-dimensional position information of said touch point from said main touch positioning system and the one-dimensional position information of said touch point from said one-dimensional position information positioning system. - View Dependent Claims (22, 23, 24)
-
-
25-27. -27. (canceled)
Specification