Display Driver And Display Device

Abstract

A display driver includes a driver circuit that outputs a drive signal to a display electrode EL of an electro-optical panel, a driver control circuit that controls the driver circuit, and an inspection circuit. The inspection circuit includes a comparison circuit that compares a voltage of the drive signal with a reference voltage, and a determination circuit that determines an abnormality based on an expected value corresponding to a level of the drive signal and a comparison result of the comparison circuit. In a determination mode, the driver control circuit controls a gate of a drive transistor of the driver circuit such that the drive transistor outputs the drive signal at a constant current.

Dependencies are inferred from the claim text.