Samsung Electronics Co., Ltd.

Postech Academy-industry Foundation

Ung-jin Jang

Ki-jae Song

Sung-gu Lee

Jae-Hyun Kim

Cheol-Woo Park

Jae-Byung Park

Il-Pyung Lee

Woon-sup Choi

Jun-young Park

Joo-sung Yun

Min-Gu Lee

Hong-seok Yeon

Hak-Gyu Kim

A test interface board includes an encoder, a signal copier, and a decoder. The encoder digitally encodes test data to generate a modulation signal. The signal copier copies the modulation signal by inductively coupling the modulation signal and outputs at least one copy signal corresponding to the modulation signal. The decoder decodes the modulation signal and the at least one copy signal in order to test at least two semiconductor devices.

Test board, test equipment, test system, and test method

A semiconductor device and a test apparatus including the same, the semiconductor device including a command distributor receiving a serial command that is synchronized with a first clock signal and converting the serial command into a parallel command, a command decoder receiving the parallel command and generating a pattern sequence based on the parallel command, and a signal generator receiving the pattern sequence and generating operating signals synchronized with a second clock signal, wherein a frequency of the first clock signal is less than a frequency of the second clock signal.

Semiconductor device and test apparatus including the same

The driving apparatus of a display device calculates a slope using a minimum gray, a maximum gray, a gray average of frame data in a current frame, and a gray average of frame data in a previous frame, and corrects and outputs the input frame data according to the slope, using frame data of one frame. As a result, a gray range of the input image signal can be extended, thereby improving visibility. Further, in a case of a motion picture, even when a difference of a gray range of images of adjacent frames is large, an original image is not distorted due to extension of a gray range. Also, even when noise is included in the input image signal, a gray range can be extended after removing the noise.

Driving apparatus of display device for gray range extension, display device including the same, and method of driving display device for gray range extension

Growing community of inventors

Daejeon, South Korea

Ung-jin Jang