DISPLAY DEVICE COMPENSATING IR-DROP OF SUPPLY VOLTAGE

摘要

A gate driver circuit includes a gate driver coupled to a gate line. The gate driver generates a gate signal for input to a plurality of pixels and controls a current of the gate signal based on an IR-drop of a supply voltage supplied to the pixels through a supply voltage distribution line. The gate driver decreases the current of the gate signal when the IR-drop increases, and increases the current of the first gate signal when the IR-drop decreases. A pulse width of an activation period of the gate signal decreases and luminance of the pixels increases when the current of the first row pixels decreases.

主权项

1. A display device, comprising:
a display panel including a plurality of pixels, a supply voltage distribution line, and a ground voltage distribution line, the supply voltage distribution line and the ground voltage distribution line connected to the pixels; a voltage supplier to provide a supply voltage to a first node and a ground voltage to a second node, the first node being included in the supply voltage distribution line and close to a first surface of the display panel, the second node being included in the ground voltage distribution line and close to the first surface; a timing controller to generate a data driver control signal and a gate driver control signal based on an input image signal; a data driver to generate a plurality of data signals based on the data driver control signal, and to provide the data signals to the pixels through a plurality of respective data lines; and a gate driver circuit including a plurality of gate drivers to generate gate signals based on the gate driver control signal, and to provide the gate signals to the pixels through a plurality of respective gate lines, wherein: at least one first gate driver is to transfer a first gate signal to first row pixels included in the pixels through a first gate line, and the first gate driver is to control a current of the first gate signal based on a first IR-drop of the supply voltage to the first row pixels through the supply voltage distribution line.