Korea Advanced Institute of Science and Technology

Samsung Electro-mechanics Co., Ltd.

Jin Yong Jeon

Gyu Hyeong Cho

Yong-Joon Jeon

Young-Suk Son

Jae Shin Lee

Sang Hyun Cha

Sang Kyung Kim

Yeun Joong Lee

Hyung-Min Lee

Gun Ho Lee

Jun Hyeok Yang

Hyun Sik Kim

Seung-Chul Jung

There is provided an organic light emitting diode driver capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof, and precisely setting calibration data by removing an IR drop across a transistor, employed as a switch in the pixels, by calculating a difference between at least two representative values of different gray scale ranges among predetermined gray scale ranges.

Organic light emitting diode driver

A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality of sub reference voltages. The digital-to-analog converter selects one of the reference voltages and outputs the selected reference voltage as a first analog signal. The digital-to-analog converter selects one of the sub reference voltages and outputs the selected reference voltage as a second analog signal. The output unit processes, by addition or subtraction, the first and second analog signals for output.

Driving apparatus for display

A digital-to-analog converter comprises a current supplier, a current divider dividing current supplied from the current supplier into certain amounts, an inverter outputting inverted signals of input signals and non-inverted signals, a switch controlling a flow of the current divided into the certain amounts by the current divider according to the inverted signals and the non-inverted signals, and a current output block adding up the current divided into the certain amounts according to the non-inverted signals to output an analog signal. The digital-to-analog converter can be implemented on a small chip area with desired resolution.

High resolution digital-to-analog converter

Growing community of inventors

Daegu, South Korea

Jin Yong Jeon