Lg Display Co., Ltd.

Junyoung Kwon

JungChul Kim

Jungchul Kim

Jungyoup Suk

Heekwang Kang

DaeKyu Kim

MiSo Kim

SungHun Kim

Kiyoung Sung

Hyunsuk Lee

JaeHo Sim

Sanghoon Jung

Euncheol Eom

Seungtae Jin

Heeyoung An

An OLED display includes a plurality of pixel lines each connected to a plurality of pixels, the plurality of pixel lines including at least two adjacent pixel lines, each pixel including a driving TFT, a first switching TFT, a second switching TFT, and an emission control TFT connected to the driving TFT. The OLED display also includes a first scan driver controlling the first switching TFTs for the two pixel lines. The OLED display also includes a second scan driver controlling the second switching TFTs for the two pixel lines. The OLED display also includes a third scan driver configured so that all of the emission control TFTs for the two pixel lines are turned on in a programming period, maintain a turn-on state for a portion of an emission period, and can adjust an on-time duty of the emission period after the portion of time.

Organic light-emitting diode display capable of reducing kickback effect

In pixels included in a display panel of an light emitting diode display, each pixel on an nth pixel row, where n is a natural number, includes a light emitting diode including an anode electrode connected to a node C and a cathode electrode connected to an input terminal of a low potential driving voltage, a driving TFT including a gate electrode connected to a node A, a drain electrode connected to a node B, and a source electrode connected to a node D, a first TFT connected between the node A and the node B, a second TFT connected to the node C, a third TFT connected between a data line and the node D, a fourth TFT connected between an input terminal of a high potential driving voltage and the node B, and a fifth TFT connected between the node D and the node C.

Organic light emitting diode display with threshold voltage compensation

An organic light emitting display comprises a display panel having a plurality of pixels, a gate drive circuit that drives scan lines and emission lines on the display panel, and a data drive circuit that drives data lines on the display panel, (n&#x2212;1)th and nth pixels arranged in a row, a transistor array having a driving transistor, a sampling transistor, and a first initial transistor, and a capacitor connected between an initial voltage input terminal and the sampling transistor. A gate electrode of the first initial transistor for initializing the driving transistor of the nth pixel is connected to a scan line in the (n&#x2212;1)th pixel.

Organic light emitting display

Provided is an organic light emitting diode (OLED) display which includes a driving circuit and pixels arranged on pixel rows. In a (j&#x2212;1)-th horizontal period, the driving circuit samples a threshold voltage of a driving Transistor (DT) of each pixel arranged on the (j&#x2212;1)-th pixel row, and initializes a voltage of a gate electrode of a driving TFT of each pixel arranged on the j-th pixel row. In addition, in a j-th horizontal period, the driving circuit samples a threshold voltage of the driving TFT of each pixel arranged on the j-th pixel row.

Organic light emitting diode (OLED) display and driving method thereof

An electroluminescence display device and manufacturing method thereof are provided. An electroluminescence display device includes a pixel, having: an electroluminescence diode, a driving transistor configured to supply a current to the electroluminescence diode, and a switching transistor configured to switch a signal supplied to the driving transistor, wherein a size of a channel area of the driving transistor is different from a size of a channel area of the switching transistor, and wherein a taper angle deviation of the channel areas of the driving transistor and the switching transistor is less than or equal to 10&#xb0;.

Electroluminescence display apparatus and manufacturing method thereof

The present disclosure relates to an organic light emitting display device including a substrate having an outer part and a display part, a driving thin film transistor on each of a plurality of pixel regions within the display part of the substrate, a pixel electrode on each pixel region of the display part, an organic light emitting unit on each pixel region of the display part to emit light, a common electrode on the organic light emitting unit and a bank layer to apply a signal to the organic light emitting layer, and a first passivation layer, an organic insulating layer and a second passivation layer on the outer part and the display part, wherein the first passivation layer and the second passivation layer are removed from the outermost region of the outer part, so that the substrate is exposed to the outside.

Organic light emitting display device and method of fabricating the same

An organic light emitting display comprises a display panel having a plurality of pixels, a gate drive circuit that drives scan lines and emission lines on the display panel, and a data drive circuit that drives data lines on the display panel. Each of the pixels is arranged in an nth row. A single frame for the organic light emitting display comprises an initial period in which the gate voltage of a driving transistor is initialized, a sampling period for compensating the threshold voltage of the driving transistor, and a light emission period in which an organic light emitting diode emits light. A value corresponding to an image signal to be displayed by the organic light emitting diode is applied to a data line during the sampling period, and an initial voltage is applied to one electrode of a capacitor during the initial period.

Organic light emitting display and circuit thereof

A circuit has a first portion configured to act as a shift register to provide an output signal via an output terminal, and a second portion configured to act as an inverter to invert the output signal at the output terminal of said first portion from a logic high state to a logic low state or vice versa. This is to forcibly turn off one or more transistors in a pixel circuit that provides subpixel or pixel-related control in an OLED display, such that an anode voltage of an organic light emitting diode does not exceed a turn-on voltage thereof.

Growing community of inventors

Busan, South Korea

Junyoung Kwon