Electronic apparatus and display driver

摘要

In case that a terminal gradation signal output terminal in a pre-stage display driver and an initial gradation signal output terminal in a next-stage display driver of a plurality of display drivers which are arranged in parallel are used in driving the same gradation signal electrode of a display panel, an output of dummy data from the other gradation signal output terminal which mutually competes with an output timing of a gradation signal from one gradation signal output terminal between both the gradation signal output terminals is suppressed by high impedance control of a corresponding gradation signal output terminal.

主权项

1. An electronic apparatus comprising:
a display panel; and a plurality of display drivers which are disposed in series at an edge of the display panel in order to drive the display panel, wherein the display panel includes a plurality of sub-pixels in which selection terminals are connected to scanning signal electrodes and signal input terminals are connected to gradation signal electrodes, and wherein the plurality of sub-pixels form a plurality of scanning lines that extend in a direction of the scanning signal electrodes and a plurality of signal lines that extend in a direction of the gradation signal electrodes, and wherein the sub-pixels in a same signal line are alternately connected to adjacent gradation signal electrodes that are disposed on one of a first side of the same signal line and a second, opposite side of the same signal line, the display drivers are configured to supply gradation signals to a plurality of gradation signal electrodes in a parallel manner while driving the scanning signal electrodes in a predetermined order, wherein a first gradation signal output terminal disposed on a first display driver of the plurality of display drivers is adjacent to a second gradation signal output terminal disposed on a second display driver of the plurality of display drivers, wherein the first and second gradation signal output terminals are connected to a common gradation signal electrode of the gradation signal electrodes, and wherein the first and second display drivers are adjacently located to each other at the edge of the display panel and suppress an output of dummy data from the first and second gradation signal output terminals by using high impedance control associated with the first and second gradation signal output terminals to control an output of a gradation signal onto the common gradation signal electrode.