Chunghwa Picture Tubes, Ltd.

National Yang Ming Chiao Tung University

Shao-Lun Chang

Wen-Chuan Wang

Shih-Chieh Lin

Wei-Lien Sung

Han-Lung Liu

Po-Tsun Liu

Guang-Ting Zheng

Chi-Liang Kuo

Shao-Huan Hung

Chang-Sheng Weng

A verification apparatus and a verification method are suitable for a touch display panel which comprises multiple partitions. The verification apparatus includes signal generating circuit and verification switch circuit. The signal generating circuit is configured to generate a verification voltage. The verification switch circuit comprises multiple switch units which are separately coupled to the partitions and the signal generating circuit, and are configured to deliver verification voltage simultaneously to at least two of multiple partitions.

Verification apparatus and verification method for touch display panel

A driving circuit in this disclosure includes plural stages of shift register circuits. Every stage in the shift register circuits includes an enabling control circuit, a first output circuit, a second output circuit and a disabling control circuit. The enabling circuit is configured to control the voltage of the first operation node according to enabling signal. The first output unit is configured to generate the first driving signal according to the voltage of the first operation node and the first clock signal. The second output unit is configured to generate the second driving signal according to the voltage of the first operation node and the second clock signal. The disabling control unit is used to pull low the voltage of the first operation node and output terminal of the first and second output unit to the reference voltage according to the first, third, and fourth clock signals.

Driving circuit and driving method

A display panel includes a substrate, and a pixel array and a gate driving circuit. The gate driving circuit provides gate driving signals to the pixel array, and includes shift registers, wherein each shift register includes a voltage providing unit, a first driving transistor, a voltage transmitting unit and a second driving transistor. The voltage providing unit receives a setting signal and a system high voltage to provide a first terminal voltage. The first driving transistor receives a first clock signal and the first terminal voltage to provide a first gate driving signal. The voltage transmitting unit receives the first gate driving signal to provide a second terminal voltage. The second driving transistor receives a second clock signal and the second terminal voltage to provide a second gate driving signal. Therefore, the influence caused by large difference of driving capabilities of the first and the second driving transistor is avoided.

Display panel

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Taipei, Taiwan

Shao-Lun Chang