Display apparatus, display driving apparatus, and method of driving the display apparatus

摘要

A display driving apparatus for outputting control signals to a number of driver integrated circuits (ICs). The plurality of driver ICs are connected in a cascade manner such that, when a first control signal is input to a first driver IC, a transmission signal corresponding to the first control signal is transmitted to a subsequent driver IC using a cascade method. The display driving apparatus includes a restoration signal generation unit for generating restoration signals with respect to the first control signal and transmission signals of the number of driver ICs; an error detection unit for detecting an abnormal driver IC that does not operate normally from among the plurality of driver ICs; and a restoration signal output unit for outputting a restoration signal to the abnormal driver IC.

主权项

1. A display driving apparatus, comprising:
a plurality of driver integrated circuits (ICs) connected in a cascade manner, to display images in a plurality of pixels and transmit transmission signals by using the cascade manner; a first driver IC of the plurality of driver ICs, responding to a first control signal input to the first driver IC, applying the transmission signal to a subsequent driver IC of the plurality of driver ICs; a restoration signal generation unit generating first restoration signals synchronized with the transmission signals for the plurality of driver ICs; a timing control unit comprising an error detection unit detecting an error among the driver ICs on a basis of the first restoration signals and the transmission signals from the driver ICs to determine a driver IC associated with the detected error as an abnormal driver IC; a restoration signal output unit having a plurality of restoration signal output lines connected to the plurality of driver ICs, providing a second restoration signal to an output terminal of the abnormal driver IC while the restoration signal output lines connected to the driver ICs other than the abnormal driver IC are set at a high impedance state; a substitution display control unit controlling to display image data of a region of pixels driven by the abnormal driver IC in a pixel region driven by at least one of the driver ICs other than the abnormal driver IC, when the region of pixels driven by the abnormal driver IC is determined as an assigned region.