Importance

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Abstract

A display driver including a shift register which shifts a shift start signal based on a shift clock to output a shift output from flip-flops thereof; a shift register control circuit which controls the shift register; a data latch which fetches display data on a display data bus, based on the shift output of the shift register; and a drive circuit which drives data lines based on the display data that has been fetched into the data latch. The shift register control circuit supplies the shift clock to the shift register in a vertical scan period, to cause the shift register to fetch display data for one horizontal scan, then halts the supply of the shift clock, and also supplies the shift clock to the shift register in a vertical blanking period, to clear the contents held in the shift register.

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First Claim