Abstract:
The present invention relates to a driving method of an organic light emitting display which is capable of displaying images at uniform luminance. A driving method of an organic light emitting display of an embodiment according to the present invention includes supplying a data signal to a pixel and, after the data signal is supplied, driving the pixel in a constant-voltage system during a first time period and in a constant-current system during a second time period.
Abstract:
An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a pixel unit and an emission driver. The pixel unit includes a plurality of pixels. The emission driver is configured to output an emission control signal wherein the emission control signal includes a plurality of odd-numbered frames and a plurality of even-numbered frames. Each of the odd-numbered and even-numbered frames includes at least one emission period and at least one non-emission period, and each odd-numbered frame and each even-numbered frame have respectively a different number of non-emission periods.
Abstract:
The present invention relates to a driving method of an organic light emitting display which is capable of displaying images at uniform luminance. A driving method of an organic light emitting display of an embodiment according to the present invention includes supplying a data signal to a pixel and, after the data signal is supplied, driving the pixel in a constant-voltage system during a first time period and in a constant-current system during a second time period.
Abstract:
An apparatus for generating a gray scale voltage in an organic light emitting display device is disclosed. In one aspect, the apparatus includes a gamma reference voltage generator, a gray scale voltage output unit and a gray scale voltage selector. The gamma reference voltage generator outputs a gamma reference voltage. The gray scale voltage output unit outputs N first gray scale voltages, based on the gamma reference voltage. The gray scale voltage selector has a lookup table in which voltage values respectively corresponding M reference gray scales are previously set, and outputs second gray scale voltages by selecting M of the N first gray scale voltages.
Abstract:
An apparatus for generating a gray scale voltage in an organic light emitting display device is disclosed. In one aspect, the apparatus includes a gamma reference voltage generator, a gray scale voltage output unit and a gray scale voltage selector. The gamma reference voltage generator outputs a gamma reference voltage. The gray scale voltage output unit outputs N first gray scale voltages, based on the gamma reference voltage. The gray scale voltage selector has a lookup table in which voltage values respectively corresponding M reference gray scales are previously set, and outputs second gray scale voltages by selecting M of the N first gray scale voltages.