Lg Display Co., Ltd.

HyunKi Lee

MunJun Lee

Sangho Yu

Hyungjung Kim

Jaehyeong Jeong

Dongkyoung Oh

Joonyoung Kim

Disclosed is an apparatus and method for driving an organic light emitting display device which facilitates to control current consumption of a display panel according to a temperature of the display panel including a light emitting device or a surrounding temperature of the display panel, the apparatus comprising the display panel including the plurality of pixels provided with the plurality of light emitting devices which emit light according to a current, a temperature sensing unit for generating temperature data by sensing a temperature of the display panel or surrounding temperature; and a panel driver for controlling a data signal to be supplied to each pixel so as to make current consumption of the display panel be lower than a preset current limit value on the basis of input data and temperature data.

Apparatus and method for driving organic light emitting display device

An organic light emitting display and a method of erasing an image sticking thereof are provided. In the image sticking erasing method, a panel driving circuit is driven by a logic power voltage during a power-off delay time to discharge pixels.

Organic light emitting display and method of erasing afterimage thereof

An organic light emitting display device includes: a display panel including red, green, blue, and white (RGBW) subpixels; a first data conversion unit configured to convert red, green, and blue (RGB) data signals into RGBW data signals; an average picture level calculation unit configured to calculate an average picture level (APL) for the RGB data signals; a peak luminance controller configured to control luminance of at least one frame by using the APL and a look-up table; and a data compensation unit configured to perform a compensation operation on at least one of the RGB data signals in response to color coordinates of white (W) data signals among the RGBW data signals output from the first data conversion unit being different from a target value.

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Paju-si, South Korea

HyunKi Lee