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发明公开
CN103218085A 光学式触控显示面板 有权

光学式触控显示面板
摘要：
一种光学式触控显示面板，包含多个光感应触控单元及位置检测电路。各光感应触控单元包含光感应元件、储存电容、信号读取元件及充电元件。光感应元件感应一光源而产生一感应信号。储存电容电性连接光感应元件，用以储存感应信号。信号读取元件电性连接储存电容，用以读取储存电容的电压，而产生一读取信号。充电元件电性连接储存电容，用以充电储存电容而重置储存电容的电荷记录。位置检测电路电性连接所述光感应触控单元，以根据各光感应触控单元输出的读取信号检测光学式触控显示面板上的一触碰点。
摘要（英）：

An optical touch control display panel comprises a plurality of optical sensing touch control units and a position detecting circuit. Each optical sensing touch control unit comprises an optical sensing element, a storage capacitor, a signal reading element and a charging element. The optical sensing element senses a light sources and generates a sensing signal. The storage capacitor is electrically connected with the optical sensing element for storing the sensing signal. The signal reading element is electrically connected with the storage capacitor for reading the voltage of the storage capacitor and generating a reading signal. The charging element is electrically connected with the storage capacitor and is used for charging the storage capacitor and resetting charge record of the storage capacitor. The position detecting circuit is electrically connected with the optical sensing touch control units for detecting a touch poin on the optical touch control display panel according to the reading signal output from each optical sensing touch control unit.

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