DISPLAY DRIVE CIRCUIT AND DISPLAY DEVICE

摘要

A display drive circuit includes: source amplifiers capable of driving source lines of a display panel connected thereto; preamplifiers capable of outputting first gradation voltages; source circuits each including a division of the source amplifiers, provided that the source amplifiers are divided equally; and resistance arrays. Each source circuit is provided with one of the resistance arrays. Each resistance array divides input first gradation voltages to generate second gradation voltages and provides them to the corresponding source circuit. The worsening of the capability of converging of gradation lines for supplying second gradation voltages to the source circuits can be suppressed without providing gradation-voltage-generation circuits even with a display driver IC having an increased long side length, or more than one display driver IC provided.

主权项

1. A display drive circuit, comprising:
a plurality of source amplifiers operable to driving source lines of a display panel; a plurality of preamplifiers operable to output first gradation voltages; a plurality of source circuits, each source circuit including a portion of the plurality of source amplifiers; and a plurality of resistance arrays corresponding to the plurality of source circuits, wherein the plurality of resistance arrays is operable to divide the first gradation voltages to generate second gradation voltages, and supply the second gradation voltages to corresponding source circuits.