MULTI TOUCH AND OBJECT SENSING APPARATUS WHICH USES A SENSING ARRAY AND WHICH ARRANGES A SENSING ARRAY IN THE LOWER PART OF A DIFFUSING PLATE

摘要

PURPOSE: A multi touch and object sensing apparatus which uses a sensing array is provided to reduce the thickness of the apparatus and to arrange a sensing array in the lower part of the diffuse plate.;CONSTITUTION: A diffusing plate(420) projects invisible light. A visible light source(430) locates in the lower part of the diffusing plate and radiates the visible light is radiated to the diffusing plate. A sensing array(470) is located in the lower part of the diffuse plate and senses the non-visible light. An invisible light source(451) is located in the upper part of the diffuse plate and radiates the invisible light which senses a touch or target image. The touch or the target image is generated to the object.;COPYRIGHT KIPO 2011