TOUCH SCREEN, TOUCH SYSTEM AND LIGHT SOURCE

摘要

A touch screen and a touch system both of which enable the enhancement of the evenness of the light distributed on a touch detection area (120) of the touch screen are provided. The touch screen includes a light source (100), which includes a light emitting body (102), a light guiding body (104) and a reflecting unit (106). The light emitting body (102) is located at a port of the light guiding body (104), and the reflecting unit (106) is formed in the light guiding body (104) and at a side away from a touch detection area (120). The light emitted by the light emitting body (102) projects the light guiding body (104) and is transmitted within the light guiding body (104), and part of the light transmitted within the light guiding body (104) is distributed on the touch detection area (120) after being reflected by the reflecting unit (106). A light source (100) is also provided, which enables the enhancement of the evenness of the light emitted by the light source (100).