Patent ID: 8564569
Filing Date: 2013-10-22
Classification: G06F

Abstract:
1. An optical touch control system, comprising: a monitor comprising a first side, a second side, a third side, and a fourth side sequentially connected to each other; a first light guide disposed on the first side of the monitor; a second light guide disposed on the second side of the monitor; a third light guide disposed on the third side of the monitor; a first beam splitter adjacent to the first and second light guides, wherein the first and second light guides are directly connected to different sides of the first beam splitter; a second beam splitter adjacent to the second and third light guides, wherein the second and third light guides are directly connected to different sides of the second beam splitter; a first light source adjacent to the first beam splitter, wherein light output from the first light source enters the first and second light guides via the first beam splitter and is transmitted onto the monitor via the first and second light guides; a second light source adjacent to the second beam splitter, wherein light output from the second light source enters the second and third light guides via the second beam splitter and is transmitted onto the monitor via the second and third light guides; a first image sensor disposed between the first and fourth sides of the monitor; and a second image sensor disposed between the third and fourth sides of the monitor, wherein the first and second image sensors receive the light transmitted onto the monitor via the first, second, and third light guides, identifying touch control operations.