Raydium Semiconductor Corporation

Chen-Wei Yang

Cheng-Nan Lin

An OLED touch display operation method is disclosed. The OLED touch display operation method includes the following steps: controlling a touch scan transition timing and a display multiplexer switching timing to maintain a specific equidistant relationship; when the OLED touch display performs display function, the OLED touch display performs touch scanning only for a part of display time, and stops touch scanning or performs touch voltage compensation scanning for another part of display time; and when being interfered by external noise, the OLED touch display performs touch scanning only in a blanking period out of the display time and the touch scanning frequency can be adjusted to avoid interference of external noise.

Organic light-emitting diode touch display operating method

A self-capacitive touch and force sensing apparatus includes a metal layer, a sensing component layer, an air gap layer and a processing module. The sensing component layer is disposed above metal layer. The air gap layer is formed between metal layer and sensing component layer. When the self-capacitive touch and force sensing apparatus is operated in a self-capacitive touch sensing mode, metal layer is driven and synchronized with a touch signal, so that no capacitive effect between sensing component layer and metal layer and a first capacitance change is sensed; when the self-capacitive touch and force sensing apparatus is operated in a self-capacitive force sensing mode, metal layer is grounded, so that there is a capacitive effect between sensing component layer and metal layer and a second capacitance change is sensed. The processing module obtains a third capacitance change according to first capacitance change and second capacitance change.

Growing community of inventors

Hsinchu, Taiwan

Chen-Wei Yang