Lg Display Co., Ltd.

Seok Hyun Hong

Jae Yoon Bae

Jung Hyeon Kim

Sang Yun Kim

Tae Wook Kim

Myung Gi Lim

O Sung Do

Seong En Lee

Jae Ik Yoo

An electroluminescent display apparatus may include a pixel including a driving element having a gate electrode connected to a data line and a source electrode connected to a reference voltage line and a pixel driving circuit applying a sensing data voltage to the gate electrode of the driving element through the data line, detecting a source electrode voltage of the driving element, shifted from a sensing reference voltage based on the sensing data voltage, through the reference voltage line to obtain a detection voltage, calculating an offset voltage based on the detection voltage, and lowering a level of the sensing data voltage based on the offset voltage, in a plurality of vertical blank periods.

Electroluminescent display apparatus

A light emitting display device includes a display panel configured to display an image, and a data driver including a panel driving circuit and a panel sensing circuit, the panel driving circuit configured to drive the display panel, and the panel sensing circuit configured to sense the display panel. The data driver pre-charges a reference line of the display panel based on a voltage output from at least one of data voltage output circuits included in the panel driving circuit.

Light emitting display device including data voltage output circuits one of which pre-charges a reference line and driving method thereof

An electroluminescent display device includes a pixel configured to display an image based on a difference between a display data voltage and a first reference voltage, a driving voltage generation circuit configured to supply the display data voltage to the pixel through a data line, and a sensing circuit configured to supply the first reference voltage to the pixel through a sensing line. The sensing circuit includes a sensing channel terminal coupled to the sensing line, a switch coupled between the sensing channel terminal and an input terminal for the first reference voltage, and a sampling circuit configured to sense a voltage of the sensing line which has changed from the first reference voltage independent of driving characteristics of the pixel in a vertical blank period in which the switch is turned off.

Electroluminescent display device

An electroluminescent display device includes a display panel including a plurality of pixels, a first compensation value calculator for calculating a first compensation value based on prediction according to an accumulation result of video data to be written in the pixels, a second compensation value calculator for calculating a second compensation value based on sensing according to an electrical sensing value with respect to driving characteristics of the pixels, and a data corrector for correcting the video data based on the first compensation value and the second compensation value.

Electroluminescent display device and method for driving ihe same

A display device according to an embodiment includes a display panel in which a plurality of gate and date lines are formed, and a gate driver configured to include first and second shift registers and a control portion. The first shift register is disposed opposite to odd-numbered gate lines of the display panel. The second shift register is disposed opposite to even-numbered gate lines of the display panel. The control portion transfers a first control signal to the first shift register, derives a second control signal from the first control signal, and applies the second control signal to the second shift register.

Growing community of inventors

Gimpo-si, South Korea

Seok Hyun Hong