DISPLAY DEVICE AND POWER CONTROL DEVICE

摘要

A display device and a power control device capable of preventing the degradation of image quality that may occur unexpectedly by performing the sub-pixel luminance deviation compensation. The display device can include an analog-to-digital converter, a timing controller, a power generator, and a power controller, among other components. The power control device can include a power generator and a power controller, among other components.

主权项

1. A display device comprising:
an analog-to-digital converter that is connected to a sensing line connected to a sensing node within a sub-pixel on a display panel and converts a voltage at the sensing node sensed via a sensing line into a digital value with reference to the voltage of a sensing reference power to output sensing data; a timing controller that is connected to the analog-to-digital converter via a sensing data transmission line, calculates a data compensation amount based on the sensing data input through the sensing data transmission line, and stores the calculated data compensation amount in a memory; a power generator that generates or regenerates the sensing reference power and then outputs the sensing reference power; and a power controller that, when the sensing reference power is input from the power generator, outputs the sensing reference power to the analog-to-digital converter or controls the power generator to regenerate the sensing reference power.