Abstract:
A method for controlling a display device includes adjusting the luminance value of input data by a first method when the luminance value is greater than or equal to a predetermined number of nits, and adjusting the luminance value by a second method when the luminance value is less than the predetermined number of nits. The first method reduces the luminance value by a first predetermined percentage. The second method adjusts the luminance value to a first value corresponding to a predetermined luminance value set for the predetermined number of nits, and then reduces the first value by a second predetermined percentage different from the first predetermined percentage. The predetermined number of nits may be 2 nits or another number of nits.
Abstract:
A display panel driver includes a reference register, a calculator, and a data signal generator. The reference register stores a reference compensation gamma data curve generated by compensating a luminance characteristic deviation of a display panel in a reference luminance mode. The calculator calculates a compensation gamma data curve for each of a plurality of luminance modes based on the reference compensation gamma data curve to perform a dimming operation. The data signal generator generates data signals corresponding to input grayscale levels based on the compensation gamma data curve.
Abstract:
An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a display panel including a plurality of pixels, each of the pixels including an OLED and a driving transistor, the OLED configured to emit light based on an emission current, the driving transistor configured to control the emission current based on a data signal applied to a gate electrode of the driving transistor. The display also includes a power supply configured to apply a driving voltage to the pixels, apply an initialization voltage to a first electrode of the OLED, control the driving voltage within a first range, and control the initialization voltage such that a voltage difference between the driving voltage and the initialization voltage is substantially constant.
Abstract:
An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a display panel including a plurality of pixels, each of the pixels including an OLED and a driving transistor, the OLED configured to emit light based on an emission current, the driving transistor configured to control the emission current based on a data signal applied to a gate electrode of the driving transistor. The display also includes a power supply configured to apply a driving voltage to the pixels, apply an initialization voltage to a first electrode of the OLED, control the driving voltage within a first range, and control the initialization voltage such that a voltage difference between the driving voltage and the initialization voltage is substantially constant.