Lg Display Co., Ltd.

University-Industry Cooperation Group of Kyung Hee University

Chang-Hoon Jeon

Keun-Choul Kim

Seung-Woo Lee

Soon-Kwang Hong

Hoon-Ju Chung

Jin Huh

Byung-Hwee Park

Hyun-Chul Nam

Jong-Hoy Kim

Jong-Bin Kim

Min-Koo Kim

A display device with a touchscreen is provided. The display device includes a display panel having an electrode layer in a display area and a non-display area thereof, and a panel ground layer in the non-display area, and a touchscreen over the display panel and including a touch ground layer having an area overlapping with at least one of the electrode layer and the panel ground layer.

Display device with touchscreen

An organic light emitting diode (OLED) display device and a method for driving the same, are capable of achieving an enhancement in response characteristics of OLEDs and an enhancement in display picture quality through application of an overdriving (or accelerated driving) method taking into consideration intrinsic response characteristics of OLEDs. The OLED display device includes an image display panel including a plurality of pixel regions, and a driving integrated circuit for converting digital image data into an analog image signal, generating a plurality of gamma voltage levels through modulation, for overdriving or accelerated driving of the analog image signal, and modulating gray levels of the digital image data such that the modulated gray levels correspond to the modulated gamma voltage levels, for display of an image according to the modulated image data on the image display panel.

Organic light emitting diode display device with data modulator and a method for driving the same

A flexible display device is discussed. The flexible display device according to an embodiment includes an insulating and flexible substrate on which an adhesive layer is formed, a support layer adhered to the substrate via the adhesive layer, a cell array formed above the support layer, defining a plurality of pixel regions, and including a ground line connected to a ground voltage source of an external circuit, a light emitting array including a plurality of light emitting structures formed on the cell array, a sealing layer formed on the cell array, and a buffer layer, a shielding layer, and a bottom insulating layer formed between the support layer and the cell array. The light emitting array emits light toward the sealing layer, and the ground line is connected to the shielding layer through a contact hole to partially expose the shielding layer.

Flexible display device and method of manufacturing the same

The present invention an organic light emitting diode display device includes a display panel having a plurality of pixel regions, a gate driving unit for driving gate lines and light emitting control lines of the display panel, a data driving unit for driving data lines of the display panel, a power supply unit for supplying first and second power signals to power lines of the display panel as well as a compensating voltage to a compensating power line, and a timing controller for controlling the gate and data driving units for displaying an image with a data voltage compensated with the compensating voltage and controlling the power supply unit to supply the compensating voltage after converting a level of the compensating voltage just before display of a first image on the display panel at an initial driving.

Organic light emitting diode display device and method for driving the same

A driving method of a flat panel display includes dividing one frame into a plurality of sub-frames, wherein each sub-frame includes an on-state time, each on-state time corresponds to a weight value, and at least one of the weight values is expressed in the form of a non-binary code; applying an on-state gate signal to a pixel in each sub-frame to turn on the pixel; and applying each bit of a data signal corresponding to each sub-frame to the pixel.

Driving method of organic electroluminescence display

A method of driving an organic electroluminescent display device, including measuring a gray level of an image, turning on a sampling transistor connected to gate electrode and drain electrode of a driving transistor during a sampling time, applying a data voltage to operate the driving transistor, and supplying a current to an light emitting diode through the driving transistor.

Organic electroluminescent display device and driving method thereof

A driving system for an electro-luminescence display device includes an organic light emitting diode (OLED) panel having a plurality of pixels. The pixels include a red pixel, a green pixel and a blue pixel. The driving system includes a controller and a level shift unit. The controller receives a first digital data and converts the first digital data into a second digital data for a gray scale display. The level shift unit converts the second digital signal to a data voltage and supplies the data voltage to the pixels. The level shift unit operates to provide a different source voltage to the red pixel, the green pixel and the blue pixel. The red, green and blue pixels may be independently and separately controlled.

Growing community of inventors

Paju-si, South Korea

Chang-Hoon Jeon