Samsung Display Co., Ltd.

Jae Cheon Park

Seung Kyu Lee

Yoon Gyu Lee

Sun Joon Hwang

Chae Han Hyun

Min Seong Son

Hyun Jung Son

A display device, including: pixels coupled to scan lines and data lines; a data driver configured to supply respective data signals to the data lines, including an amplifier disposed at an output terminal of the data driver, the amplifier including a first power terminal and a second power terminal; a switch unit configured to perform a power switching operation of alternately connecting the first power terminal and the second power terminal of the amplifier to a first driving power source and a second driving power source; and a driving controller configured to control the data driver and the switch unit, wherein the driving controller is configured to output a switch control signal to control the switch unit and interrupt the power switching operation during a blank period between source output periods, during which the data driver is configured to output the data signals of each frame.

Display device having a switch unit for power switching operation and method of driving the same

A display device includes a display driver configured to drive pixels in correspondence with input image data, timing signals, and a brightness selection signal. The display driver includes a storage unit configured to store gamma data and a duty value for each of a plurality of sample brightness levels including a K-th sample brightness level, and a brightness controller, the display driver being configured to control the brightness of the display area according to the gamma data or the duty value or gamma data obtained by non-linearly interpolating gamma data of a (K&#x2212;1)-th sample brightness level and the K-th sample brightness level, with respect to a tuning point brightness level. A light emission time of the pixels corresponding to the (K&#x2212;1)-th sample brightness level is less than or equal to 10% shorter than the light emission time of the pixels corresponding to the K-th sample brightness level.

Display device and method of controlling brightness of the same based on sample brightness levels

A display device is provided including a much sensor including a touch controller and a display panel overlapped by the touch sensor and configured to display an image. A display panel driver is, electrically connected to the display panel and configured to supply a driving signal to the display panel. The display panel driver is electrically connected to the touch controller and is configured to transmit a noise sensing signal to the touch controller.

Growing community of inventors

Cheonan-si, South Korea

Jae Cheon Park