| 摘要 |
PURPOSE: A light emitting material and touch screen for recognizing a coordinate using the same are provided to effectively grasp a plurality of light emitting locations by detecting light signals emitted from a touch area of a touch panel. CONSTITUTION: A touch panel includes light emitting materials(110a-110d). Sensor units(120a-120d) detects a light signal generated from a touch area. The sensor units are arranged at each edge of the touch panel. A control unit(130c) calculates the light emitting location of the touch panel based on scan information of the light signal detected by the sensor unit. The control unit turns off the light emitting material according to a calculation result by calculating the light emitting location. The control unit turns off the light emitting material arranged on the calculated light emitting location. |
