Lg Display Co., Ltd.

Hyungguk Bae

Sunghoon Rha

Changhoon Jeon

Nakyoon Kim

Minsu Cho

Minkyu Jang

In an embodiment of the present disclosure, there is provided a display device including: a plurality of subpixels between a line of a first power voltage and a line of a second power voltage, the plurality of subpixels configured to be supplied with a driving current and to emit light in response to the driving current; and a power supply unit configured to generate the first power voltage and the second power voltage based on an external input voltage, wherein the power supply unit generates power when the external input voltage corresponds to between a preset maximum voltage and a minimum voltage, and the power supply unit reduces a voltage difference between the first power voltage and the second power voltage when the external input voltage corresponds to between a preset reference voltage and the minimum voltage.

Display device and method for driving the same

A display device includes a display panel including data lines, gate lines which cross the data lines, and pixels; a gamma voltage generator configured to generate first to nth gamma voltages, n being an integer; and a data driver configured to generate data voltages by selecting the gamma voltages according to input image data, and to supply the data voltages to the data lines, wherein the gamma voltage generator comprises a first voltage dividing unit configured to divide a reference voltage; a first voltage dividing circuit configured to generate the first gamma voltage by selecting voltages output from the first voltage dividing unit according to a highest gamma register value; and a second voltage dividing circuit configured to generate the second to nth gamma voltages using the reference voltage.

Display device

The electroluminescent display device according to the present disclosure comprises a plurality of pixels. Each of the plurality of pixels comprises a driving element for generating a driving current, a light emitting element for emitting light according to the driving current, an emission controlling element for controlling a flow of the driving current between the driving element and the light emitting element, and a switching circuit for setting a first gate-source voltage of the driving element corresponding to the driving current based on a first data voltage during a first period and setting a second gate-source voltage of the driving element based on a second data voltage different from the first data voltage during a second period following the first period, wherein the second gate-source voltage is different from the first gate-source voltage, and wherein during the second period the emission controlling element is turned off.

Electroluminescent display device and driving method of the same

Provided are a display device and a driving method thereof, the display device including: a display panel having a curvature radius; a driver driving the display panel; a timing controller controlling the driver; an image processor supplying an image signal to the timing controller; and an image corrector compressing or expanding the image signal in response to the curvature radius of the display panel.

Growing community of inventors

Paju-si, South Korea

Hyungguk Bae