Fitipower Integrated Technology (shenzhen) Inc.

Yung-Hung Chen

Hong-Yun Wei

Chang Zhu

A driving control circuit with a compensating circuit detects pixel driving circuits in a display apparatus for compensating a threshold voltage in the pixel driving circuits. The compensating circuit electrically connects with the pixel driving circuits through a corresponding monitoring line. The pixel driving circuit sequentially operates during a detecting time period and a displaying period. Each pixel driving circuit comprises a driving transistor and an OLED. During the detecting time period, the compensating circuit charges a node in each pixel driving circuit by a constant current for speeding up a time of the detecting time period. The node is connected between a terminal of the driving transistor and the OLED in each pixel driving circuit.

Driving control circuit for driving pixel driving circuit and display apparatus thereof

A driving control system for driving pixel driving circuits in a display apparatus includes a selecting module, a compensating circuit, and a controller. The pixel driving circuit sequentially operates during a detecting time period and a displaying period. Each pixel driving circuit comprises a driving transistor and an OLED. During the detecting time period, the selecting circuit selects at least one of the pixel driving circuits, the driving transistor in the selected at least one of the pixel driving circuits becomes saturated, the compensating circuit detects a detecting current of the selected pixel driving circuit and converts the detecting current into a specified parameter, the controller adjusts a driving voltage provided to the selected pixel driving circuit based on the specified parameter.

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Hsinchu, Taiwan

Yung-Hung Chen