Source driver of LCD for black insertion technology
AssigneeChunghwa Picture Tubes, Ltd.
InventorsTien-Chu Hsu, Yu-An Liu
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Abstract
A source driver of an LCD includes a shift register, a set of data latches, and a detection circuit. The shift register includes a plurality of flip-flops for transmitting a start signal. The set of data latches transmits the display data signal according to output signals of the corresponding flip-flops. When the start signal is recognized as a black insertion signal, the detection circuit resets the shift register, and drives the set of data latches to output the black data signal, and transmits the black insertion signal to the next source driver.
Claims10
A source driver, comprising:
- a shift register, comprising a plurality of flip-flops connected for transmitting a start signal;
- a first set of data latches for transmitting display data according to an output signal of a corresponding one of the plurality of the flip-flops;
- and
- a detection circuit for resetting the shift register and driving the first set of the data latches to output black data when the start signal is recognized as a black insertion signal, and transmitting the recognized black insertion signal to a next source driver.
A method for driving an LCD, the method comprising:
- utilizing a shift register for transmitting a start signal;
- generating a black insertion signal according to the start signal;
- resetting the shift register according to the black insertion signal;
- driving a set of data latches to output black data according to the black insertion signal;
- and
- transmitting the black insertion signal to a next source driver.
Dependencies are inferred from the claim text.