Samsung Display Co., Ltd.

Korea Advanced Institute of Science and Technology

Jun-Suk Bang

Gyu-Hyeong Cho

Oh-Jo Kwon

Joo-Hyung Lee

Hyun-Sik Kim

Choong-Sun Shin

Won-Tae Choi

Hee-Sun Ahn

Bo-Yeon Kim

Ji-Woong Kim

A data driver includes a data signal converter to convert image data to a data signal, an output buffer to output the data signal to a data line, a first cascode circuit connected to the output buffer and including a plurality of transistors, a first noise attenuator connected to a first node between the output buffer and the first cascode circuit, and to attenuate a first current noise, a second cascode circuit connected to the output buffer and including a plurality of transistors, a second noise attenuator connected a second node between the output buffer and the second cascode circuit, and to attenuate a second current noise, a current integrator to generate an integrated voltage by integrating a first current flowing through the first cascode circuit and a second current flowing through the second cascade circuit, and an analog-digital converter (ADC) to convert the integrated voltage to a digital signal.

Data driver and organic light emitting display device having the same

An organic light emitting display device includes pixels positioned at crossing regions between data lines and scan lines, each of the pixels including an organic light emitting diode, a scan driver configured to supply a scan signal to scan lines, a data driver configured to drive the data lines, wherein the data driver includes, in each channel, a supply part comprising a digital-to-analog converter configured to generate data signals using second data supplied from outside in a driving period, and a deterioration part configured to measure deterioration information of the organic light emitting diode using the digital-to-analog converter in a sensing period.

Organic light emitting display device configured to measure deterioration information, and driving method thereof

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Seoul, South Korea

Jun-Suk Bang