Synaptics Incorporated
DEVICE AND METHOD FOR TESTING INTERCONNECTION OF DISPLAY MODULE

Abstract:

A display driver comprises a decoder, a first source amplifier and a logic circuitry. The decoder is configured to output a grayscale voltage corresponding to an image data. The first source amplifier is configured to output a first source output voltage corresponding to the grayscale voltage to a first external output terminal. The logic circuitry is configured to generate fault detection data for fault detection of a test object connected to the first external output terminal. The fault detection data is based on a comparison output signal generated based on a comparison between a reference voltage and a voltage on the first external output terminal. The comparison is performed by the first source amplifier.