Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Komiya Naoaki

Yang Wan Kim

Ho-Suk Maeng

Bo-Young An

Ji-Hye Shin

Won Kvu Kwak

A display device includes a display panel, a timing controller, and a data driver. The display panel includes a central region and a peripheral region. The timing controller converts image data to converted data so that a maximum luminance of the peripheral region is less than a maximum luminance of the central region. The data driver generates a data signal based on the converted data and to provide the data signal to the display panel.

Display device

An organic light emitting display device, which can independently (or freely or individually or arbitrarily) control light emission times of red, green and blue subpixels and a driving method thereof. The organic light emitting display device includes a plurality of subpixels connected with scan lines, light emitting control lines, and data lines; a scan driver for driving the scan lines and the light emitting control lines; and a data driver for driving the data lines. Here, the subpixels connected with one of the light emitting control lines generate lights of a same color.

Organic light emitting display device and driving method thereof

An organic light emitting diode (OLED) display device and a method for driving the OLED display device are provided. A gate drive circuit provides scan signals in sub-frames to scan lines. A data drive circuit provides a data signal to data lines. An emission control signal generation circuit provides first and second emission control signals to control the OLEDs. A display region includes pixels arranged in a matrix and connected to the scan lines, data lines, emission control lines, and power lines. The pixels include a first and a second unit pixel portion. The first unit pixel portion performs a time division control drive by driving a plurality of organic light emitting diodes by one shared pixel circuit. In the second unit portion one organic light emitting diode is driven by an independent pixel circuit.

Organic light emitting display device with reduced variation between life times of organic light emitting diodes and driving method thereof

Disclosed is an organic light emitting display and a driving method thereof capable of reducing the number of output lines in a data driver. A scan driver sequentially supplies a scan signal to a scan line during a second period of one horizontal period. A data driver includes a plurality of output lines, for supplying a plurality of data signals to the respective output lines during the second period. Demultiplexers are installed at the respective output lines, and include a plurality of data transistors for supplying the data signals to the output lines during the second period, to a plurality of data lines. Initializing sections are installed between a first initialization power supply and the plurality of data lines, and include a plurality of initialization transistors for supplying a voltage of the first initialization power supply to the plurality of data lines. A pixel portion includes a plurality of pixels positioned at areas partitioned by the scan line and the data lines, and the initialization transistors are turned-on during a first period of the one horizontal period, which is not overlapped with the second period.

Growing community of inventors

Hwaseong-si, South Korea

Komiya Naoaki