Texas Instruments Incorporated
LIGHT-EMITTING DIODE (LED) BRIGHTNESS NON-UNIFORMITY CORRECTION FOR LED DISPLAY DRIVER CIRCUIT

Abstract:

A light-emitting diode (LED) display driver circuit includes: a set of channels, each channel of the set of channels having a respective current control circuit; and control circuitry coupled to each respective current control circuit and configured to adjust a respective control signal to each respective current control circuit responsive to an LED brightness estimate for each channel of the set of channels.