Touch Detection Apparatus

Abstract

A touch detection apparatus is disclosed, which comprises: a frame which defines a planar touch detection region; at least one surface light-emitting body which is disposed on the frame; at least one light source which is placed at the end of the surface light-emitting body; at least one detector which is disposed on the frame and used to detect information of a touch object in the touch detection region; and a processing circuit which is connected to the detector and used to receive information detected by the at least one detector and calculate position information of the touch object based on the received information. In the touch detection apparatus of the present invention, the light source and the surface light-emitting body are disposed on the edges of the frame, thus a good light source can be provided to the touch detection apparatus, and the cost of the entire touch detection apparatus can be reduced due to the low cost of the surface light-emitting body.

Dependencies are inferred from the claim text.