Semiconductor device with chip layout having inner electrode configuration and liquid crystal display apparatus employing the semiconductor device

摘要

A semiconductor integrated circuit for driving an LCD. The circuit has a shift register circuit portion (3) and a driver circuit portion (7). All the stages of the shift register circuit portion are formed adjacently to the outer fringe of a chip (30). All the stages of the driver circuit portion are formed along the central line (L1) of the chip. Signal electrodes (81-8N) for individual bits are formed in a belt-like region (33) extending in the X-direction along the central line (L1) and adjacently to the driver circuit portion. Output electrodes are arranged in a zigzag fashion. Since the output electrodes overlap with each other in the Y-direction, the width of the chip can be suppressed. Power supply voltages (VH, V0, V2, V3, V5) are applied to the driver circuit portion (7) through leads (36-40). These leads are connected so as to form a closed loop making one revolution around the output electrodes (81-8N) located in the center of the chip. The leads do not intersect with each other, thus making the impedances of the leads uniform. As a result, the nonuniformity of the-contrast of the display can be suppressed.