Samsung Display Co., Ltd.

Dowon Kim

Sung-Yeol Baek

Min-Weun Kim

Yoon Ho Kang

Min-weun Kim

Woonyong Lim

Ukrae Lee

A display device includes a driving controller determining whether a dimming value is within one of first and second ranges, compare, in response to determining of the dimming value being within the first range, the dimming value with a first value and operate, in response to a comparison result of the dimming value and the first value, in one of first and second modes, compare, in response to determining of the dimming value within the second range, the dimming value with a second value and operate, in response to a comparison result of the dimming value and the second value, in one of the first and second modes, output the light emitting control signal for adjusting a pulse width of the light emitting signal in the first mode, and output the output data signal by modifying the input image signal based on the dimming value in the second mode.

Display device and method for driving the same

An electronic device includes a display layer, a data driving circuit, a scan driving circuit, a driving controller, and a temperature sensor which measures a temperature of the display layer to generate temperature data. The driving controller includes a first lookup table calculating unit which calculates a first lookup table based on the image signal, the temperature data, and a reference lookup table set for each of a plurality of gray levels, a luminance compensating unit which calculates a luminance weight based on luminance data, and a second lookup table calculating unit which calculates a second lookup table based on the first lookup table and the luminance weight, and the driving controller generates the image data based on the image signal and the second lookup table.

Electronic device and driving method of electronic device

A display device includes a luminance correction unit that corrects input data based on a dimming code value and outputs correction data, a gamma correction unit that corrects the correction data and generates output data, a gamma voltage generator that generates gamma voltages depending on a first voltage code value, a data driver that converts the output data into data voltages based on the gamma voltages, and a controller that supplies the dimming code value and the input data to the luminance correction unit and provides the first voltage code value to the gamma voltage generator. The controller compares a highest dimming compares a highest dimming grayscale value of the output data determined by the dimming code value with a highest reference grayscale value and updates the first voltage code value with a second voltage code value.

Growing community of inventors

Gwacheon-si, South Korea

Dowon Kim