Abstract:
A power supply device includes a first power generator, a second power generator, and a power selector. The first power generator generates a first power voltage of a first voltage level in a first display mode and a second voltage level in a transition period between the first display mode and a second display mode. The second power generator generates a second voltage. The power selector selects a driving power to provide the first power voltage to a power supply line in the first display mode, the second power voltage to the power supply line in the second display mode, and the first power voltage and the second power voltage to the power supply line in the transition period.
Abstract:
A display device includes a display panel including a first display area and a second display area, a primary driver integrated circuit (IC) to receive first input image of the first display area, to determine a luminance correction factor based on a sum of a first On-Pixel-Ratio (OPR) of the first display area and a second OPR of the second display area, to output a first image data signal to which the first input image data is remapped using the luminance correction factor, a secondary driver IC to receive second input image data of the second display area, to calculate the second OPR, to provide the second OPR to the primary driver IC, and to output a second image data signal to which the second input image data is remapped using the luminance correction factor, and a scan driver.
Abstract:
A display device includes a display panel, a timing controller, and a data driver. The display panel includes a central region and a peripheral region. The timing controller converts image data to converted data so that a maximum luminance of the peripheral region is less than a maximum luminance of the central region. The data driver generates a data signal based on the converted data and to provide the data signal to the display panel.
Abstract:
An image processing device includes a current limiter and a brightness controller. The current limiter calculates compensating data based on an on-pixel ratio of an image signal and calculates a compensation brightness data of the image signal based on the compensating data. The compensating data decreases the driving current of the image signal. The brightness controller selects one of a plurality of gamma sets and one of a plurality of dimming values based on the compensation brightness data.