Patent ID: 8269708

Claim:
A driver unit for driving a display panel and a nonvolatile memory, comprising: a level shifter circuit adapted to receive a driver control signal to generate a level-shifted driver control signal; a display panel driver circuit connected between said level shifter circuit and said display panel and adapted to drive said display panel in accordance with said level-shifted driver control signal; a nonvolatile memory driver circuit connected between said level shifter circuit and said nonvolatile memory to drive said nonvolatile memory in accordance with said level-shifted driver control signal; and a selection circuit connected to said display panel driver circuit and said nonvolatile memory driver circuit and adapted to select one of said display panel driver circuit and said nonvolatile memory driver circuit, wherein said selection circuit comprises an additional level shifter circuit adapted to receive a selection signal to generate a level-shifted selection signal and transmit it to said display panel driver circuit and said nonvolatile memory driver circuit so that one of said display panel driver circuit and said nonvolatile memory driver circuit is activated and the other is deactivated.