Lg Display Co., Ltd.

MyungJin Pyeon

HyunSon Chon

Sangho Yu

MunJun Lee

Dongkyoung Oh

Youngin Kim

JongWon Yang

A display device includes a display panel with unit-pixels disposed thereon, each of the unit-pixels being formed of a plurality of pixels; a data driver applying data voltage to the plurality of pixels during a display period and applying sensing data voltage to the plurality of pixels during a sensing period; a sensing unit sensing an electrical characteristic of the plurality of pixels during the sensing period; and an external compensation unit compensating for the data voltage based on a result of the sensing.

Display device and driving method for the same

A gate driver for an organic light emitting display device comprises a selector configured to select and output one of a first low voltage and a second low voltage in response to a mode selection signal, wherein the first low voltage is selected in a first mode and the second low voltage is selected in a second mode, and the second low voltage has a lower level than the first low voltage, and a level shifter configured to generate a clock signal based on a high voltage and the first low voltage, to output the clock signal at a first output terminal, and to generate a direct current signal corresponding to the first or second low voltage outputted from the selector and to output the direct current signal at a second output terminal, wherein the high voltage is a voltage level higher than the first low voltage and the clock signal is a voltage level between the high voltage and the first low voltage.

Gate driver, organic light emitting display device and driving method thereof

Discussed is an organic light emitting display device including a display panel; a human body detection unit to detect a human body existing in front of the display panel; a human body determination unit to determine whether the human body exists and a location of the human body with respect to the display panel based on detection information from the human body detection unit; a brightness control unit to determine whether to control a brightness of the display panel based on a result of the determination by the human determination unit; and a timing controller to control image data provided to the display panel based on the determination from the brightness control unit. Accordingly, a viewer can view a sufficiently bright image, and energy can be saved and threshold voltage (Vth) difference can be compensated for.

Organic light emitting display device and method of controlling same

Disclosed is an organic light emitting display device. In a sensing mode of sensing a threshold voltage of a driving transistor, when ripple occurs in a driving voltage applied to a drain of the driving transistor, an error may occur in the sensed threshold voltage. Therefore, when sensing a threshold voltage of a driving transistor, the display device corrects a threshold voltage of a driving transistor of each pixel included in a horizontal line having an error caused by a ripple of a driving voltage, to a threshold voltage of each pixel included in another horizontal line.

Organic light emitting display device and method of compensating for image quality of organic light emitting display device

A timing controller, a display device, and a method of driving the same able to prevent a dark defect that would otherwise be formed when two or more image control methods are disclosed.

Timing controller, display device, and method of driving the same

A display device and a power control device capable of preventing the degradation of image quality that may occur unexpectedly by performing the sub-pixel luminance deviation compensation. The display device can include an analog-to-digital converter, a timing controller, a power generator, and a power controller, among other components. The power control device can include a power generator and a power controller, among other components.

Display device and power control device capable of preventing the degradation of image quality

An organic light emitting display device, can include a panel, a driving unit driving the panel, a timing controller controlling the driving unit, a power supply supplying power to the panel, a current detection unit detecting a current flowing through power line wiring of the panel and outputting the detected currents, and a power controller comparing the detected current with a current value configured internally and outputting a shutdown signal which turns off the power supply if the detected current exceeds the predetermined current value.

Organic light emitting display device and driving method thereof

The present invention has been made in an effort to provide an organic light emitting display device comprising a panel; a power supply supplying power to the panel; a current detection unit detecting a current flowing through power line wiring of the panel and outputting the detected current; and a power controller comparing the detected current with a current value configured internally and outputting a shutdown signal which turns off the power supply if the detected current exceeds the predetermined current value.

Growing community of inventors

Paju-si, South Korea

MyungJin Pyeon