PICTURE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce the scale of a device by reducing a chip area while using a character ROM in common occupying the chip area most in a display controller. SOLUTION: This controller is provided with a first timing generator 5 generating a a timing signal which is needed for displaying a first display layer and a second timeing generator 16 generating a timing signal which is needed for displaying a second display layer and a shift register 18 which performs the parallel-to-serial conversion of the second display layer to output the second layer and a synthesizing circuit 15 synthesizing the first display layer and the second display layer to output them.