Fitipower Integrated Technology, Inc.

Focaltech Systems Co., Ltd.

Wen-Shian Shie

Tung-Shuan Cheng

Li-Shen Chang

Chien-Hsien Lin

Ko-Ming Su

A display driver circuit for high resolution and high frame rate and a display device using the same are provided. A display driver circuit for high resolution and high frame rate includes a GAMMA output circuit, multiple digital-to-analog converters (DACs), multiple source operation amplifiers and at least a pre-charging circuit. The GAMMA output circuit outputs multiple grayscales of GAMMA voltages. Each DAC receives the GAMMA voltages and provides an output data voltage according to display data. Input terminals of the source operation amplifiers correspondingly coupled to output terminals of the DACs receive the corresponding output data voltages. The pre-charging circuit coupled between the input terminal of at least one of the source operation amplifiers and the output terminal of at least one of the DACs pre-charges the input terminal of the coupled source operation amplifier, so that an output terminal of the coupled source operation amplifier has fast response to the received output data voltage.

Display driver circuit for high resolution and high frame rate and display device using the same

A display device includes a timing control circuit and a data driving circuit. The data driving circuit receives the first clock embedded training data from the timing control circuit, performs a first clock training to adjust a work frequency of the data driving circuit to be equal to the frequency of a first clock signal, and receives the first clock embedded image data from the timing control circuit. The data driving circuit also receives a second clock embedded training data from the timing control circuit, performs a second clock training to adjust a work frequency of the data driving circuit to be equal to the frequency of a second clock signal, and receives the second clock embedded image data from the timing control circuit. The frequency of the first clock signal is different from a frequency of the second clock signal.

Display device, driving method of display device and data processing and outputting method of timing control circuit

A display device includes a timing control circuit, a first data driving circuit, and a second data driving circuit. The first data driving circuit receives the first clock embedded training data from the timing control circuit, performs a first clock training to adjust a work frequency of the data driving circuit to be equal to the frequency of a first clock signal, and receives the first clock embedded image data from the timing control circuit. The second data driving circuit receives a second clock embedded training data from the timing control circuit, performs a second clock training to adjust a work frequency of the data driving circuit to be equal to the frequency of a second clock signal, and receives the second clock embedded image data from the timing control circuit. The frequency of the first clock signal is different from that of the second clock signal.

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Hsinchu, Taiwan

Wen-Shian Shie