Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Yunmi Kim

Kihyun Pyun

Juhyun Kim

Sung-Jun Kim

Minyoung Park

Kyung-Hwa Lim

Ji Woong Choi

Sung-In Kang

Heebum Park

Yongjae Lee

Jeongdoo Lee

A display device includes a controller to generate a start frame control signal having a first level in an active period and a second level in a blank period, a load signal toggling between the first level and the second level in the active period and having the second level in the blank period, and a data signal including image data in the active period and a training pattern in the blank period, and a data driver to recover the image data from the data signal based on an internal clock signal to provide display pixels with data voltages in the active period, and to perform a training operation for the internal clock signal using the training pattern in the data signal when both of the start frame control signal and the load signal are maintained as the second level for more than a reference time in the blank period.

Data driver performing clock training, display device including the data driver, and method of operating the display device

A display device includes a display panel divided into a first display area and a second display area in a first direction, a first data driver which provides a first data signal to the first display area through data lines arranged in a second direction crossing the first direction, a second data driver which provides a second data signal to the second display area through the data lines arranged in the second direction, a gate driver which provides a gate signal to the display panel through gate lines arranged in the first direction, a timing controller which generates control signals that control the first data driver, the second data driver, and the gate driver, and a defect detector which controls to display a defect detecting image and a reference image on the first display area and the second display area alternately based on an enable signal.

Display device and method of detecting defect of the same

A display panel driver includes a timing controller and a data driver. The timing controller generates a data signal based on an input image data. The data driver receives the data signal, converts the data signal into a data voltage and outputs the data voltage to a display panel. The data signal includes positive data and negative data. The data driver includes a data skew compensating circuit which samples the positive data using the negative data and compensates a skew of the data signal.

Display panel driver and display apparatus having the same

A source driver of a display apparatus includes a receiving controller receiving a first status information signal and outputting a second status information signal and a receiving circuit receiving a transmission signal in response to the second status information signal and recovering the transmission signal to receiving data. The receiving controller includes a transition detection circuit detecting a transition of the first status information signal and outputting a transition detection signal, a delay circuit delaying the transition detection signal by a predetermined time and outputting a delay detection signal, and an output circuit receiving the first status information signal and outputting the second status information signal in response to the delay detection signal.

Apparatus of transmitting and receiving signal, source driver of receiving status information signal, and display device having the source driver

A display apparatus includes: a display panel which displays an image; a data driver which supplies a data voltage to the display panel in response to a polarity control signal, where the polarity control signal controls a polarity of the data voltage; a timing controller which outputs a polarity signal corresponding to a polarity of the data voltage; and a polarity converter which receives a common voltage from a common electrode of the display panel and the polarity signal from the timing controller, where the polarity converter outputs the polarity control signal to the data driver in response to a difference in voltage level between the common voltage from the common electrode and the polarity signal from the timing controller.

Display apparatus and operation method thereof

A display apparatus is provided which includes a display panel; a gate driver configured to drive a plurality of gate lines, a data driver configured to drive a plurality of data lines, a level shifter configured to generate a gate on voltage corresponding to an atmospheric temperature and to generate a gate clock signal, the gate on voltage becoming higher depending on a decrease in an atmospheric temperature, and a timing controller configured to control the gate driver and the data driver and to generate agate pulse signal having a pulse width corresponding to a voltage level of the gate on voltage.

Growing community of inventors

Changwon-si, South Korea

Yunmi Kim