Patent ID: 6914591

Claim:
A panel driving device comprising: a shift register for sequentially storing address data according to shift clock pulses; a latch circuit for latching the address data stored in the shift register; a drive circuit for driving a display panel based on the address data output from the latch circuit; and a clock interrupting device for interrupting supply of the shift clock pulses to the shift register after a regular timing for causing the latch circuit to latch predetermined address data stored in the shift register a storage device for storing the address data to be supplied to the shift register; and a reading device for reading the address data stored in the storage device to load the read address data to the shift register, wherein the clock interrupting device includes a detecting device for detecting an event in which the predetermined address data are not being read by the reading device, and interrupts supply of the shift clock pulses to the shift register while the detecting device detects the event in which the predetermined address data are not being read.