Lg Display Co., Ltd.

Suhyeon Kim

Sungbin Shim

MoonSoo Kim

YuCheol Yang

MoonBae Gee

Sungbai Lee

Saemleenuri Lee

SeJune Kim

Howon Choi

Eui-Doo Do

Seokwon Ji

Dohong Kim

Seogshin Kang

Hyesook Kim

An electroluminescence display device comprises a substrate including a pixel area having a light emitting portion and a non-light emitting portion adjacent to the light emitting portion; a first electrode in the light emitting portion of the pixel area; an auxiliary electrode in the non-light emitting portion of the pixel area and spaced apart from the first electrode; a light emitting layer on the first electrode; a second electrode on the light emitting layer in the pixel area and connected to the light emitting layer; and an auxiliary power electrode below the first electrode and electrically connected with the auxiliary electrode.

Electroluminescence display device including auxiliary electrode

A display device may prevent external moisture from being permeated thereinto. The display device comprises a substrate provided with a display area for displaying an image by a plurality of subpixels, a plurality of first electrodes provided in each of the plurality of subpixels over the substrate, a light emitting layer provided over the plurality of first electrodes, a second electrode provided over the light emitting layer, and a common power line provided between the substrate and the first electrodes, including a contact area to which the second electrode is connected. Each of the plurality of first electrodes is provided with a first opening area in an edge area adjacent to the contact area of the common power line.

Display device

A display apparatus includes a display panel having a first area and a second area, a main body supporting the display panel, an auxiliary member arranged in the main body, and a reflective member arranged between the auxiliary member and the display panel, wherein the reflective member may movably be provided to overlap the first area or the second area. Therefore, light emitted from the display panel toward the inside of the main body may be reflected in the outside, and a luminance difference between the first area and the second area of the display panel may be prevented from occurring, whereby a user's satisfaction for an image may be enhanced.

Display with movable reflective member

A light emitting display panel includes a substrate, a pixel driving circuit disposed on the substrate, a planarization layer disposed on the pixel driving circuit, a pixel driving electrode disposed on the planarization layer and electrically connected to the pixel driving circuit, a light emitting layer disposed on the pixel driving electrode, and a common electrode disposed on the light emitting layer. The pixel driving electrode includes a plurality of first electrodes apart from one another and a second electrode covering the first electrodes, and at least one of the second electrode or the plurality of first electrodes is connected to the pixel driving circuit.

Light emitting display panel and light emitting display apparatus including the same

An electroluminescent display device includes a substrate having a first sub pixel and a second sub pixel, an auxiliary layer provided on the substrate, wherein the auxiliary layer includes a first auxiliary layer configured to surround the periphery of the first sub pixel, and a second auxiliary layer configured to surround the periphery of the second sub pixel, a first electrode provided in each of the first sub pixel and the second sub pixel, an emission layer provided on the first electrode, and a second electrode provided on the emission layer, wherein the first electrode provided in the first sub pixel is connected with the first auxiliary layer, and the first electrode provided in the second sub pixel is connected with the second auxiliary layer.

Electroluminescent display apparatus

A display device includes: a substrate having thereon a first subpixel, a second subpixel, and a third subpixel; a first electrode in each of the first to third subpixels on the substrate; a first bank between the first electrodes; a second bank on the first bank and having a width less than that of the first bank; a light emitting layer on the first electrodes, the first bank, and the second bank; and a second electrode on the light emitting layer. The light emitting layer provided on the second bank and the light emitting layer provided on the first bank are spaced apart from each other.

A display device comprises a substrate provided with a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, a first electrode provided on the substrate, an organic light emitting layer arranged on the first electrode, and a second electrode arranged on the organic light emitting layer, wherein the organic light emitting layer includes a first organic light emitting layer and a second organic light emitting layer, the first organic light emitting layer and the second organic light emitting layer are arranged on the first subpixel, the second subpixel, and the fourth subpixel, only the second organic light emitting layer is arranged on the third subpixel, only the first organic light emitting layer emits light on the first subpixel and the second subpixel, only the second organic light emitting layer emits light on the third subpixel, and both of the first organic light emitting layer and the second light emitting layer emit light on the fourth subpixel. Since the organic light emitting layer may emit light in accordance with one-stack voltage even in case of a two-stack structure of the first subpixel and the second subpixel, overall power consumption may be reduced.

Display device including subpixel having one-stack organic light emitting layer and subpixel having two-stack organic light emitting layer

An electroluminescent display apparatus can include a substrate including a first subpixel and a second subpixel, a planarization layer on the substrate, a first electrode in each of the first subpixel and the second subpixel on the planarization layer, a bank between the first electrode of the first subpixel and the first electrode of the second subpixel, a light emitting layer on the first electrode and the bank, and a second electrode on the light emitting layer. The planarization layer includes a plurality of grooves in a region overlapping the bank, the bank includes a bank hole in a region overlapping some of the plurality of grooves, and the bank hole extends along a boundary between the first subpixel and the second subpixel.

Electroluminescent display apparatus including plurality of grooves overlapping bank hole between adjacent subpixels

A display device that can reduce power consumption is provided. The display device can include a substrate provided with a first subpixel and a second subpixel, a first electrode provided on the substrate, a first light emitting layer provided on the first electrode and emitting light of a first color, a second electrode provided on the first light emitting layer, a second light emitting layer provided on the second electrode and emitting light of a second color, and a third electrode provided on the second light emitting layer. The second electrode is disconnected between the first subpixel and the second subpixel, and the second electrode of the first subpixel is electrically connected with the third electrode.

An organic light emitting display device can include a substrate; a first electrode and an auxiliary electrode disposed on the substrate; a bank pattern disposed on a part of an upper surface of the first electrode and the auxiliary electrode, in which the bank pattern is divided into a first area and a second area disposed under the first area; a barrier rib disposed on a part of the upper surface of the auxiliary electrode, in which the barrier rib is divided into a third area having a reverse-tapered shape and a fourth area disposed under the third area and having a tapered shape; an organic emission layer disposed on the substrate; and a second electrode disposed on the organic emission layer.

Organic light emitting display device

The present disclosure provides an organic light emitting diode display device including: first to third color filter layers disposed corresponding to red, green, and blue sub-pixels, respectively; and a fourth color filter layer alternately arranged including a color layer having the same color as any one of the first to third color filter layers in a white sub-pixel in each of a plurality of pixels, and having a smaller height than the first to third color filter layers. Additional color filter layers may also be included. The display device of the present disclosure has lower reflectance and enhanced black color expression.

Organic light emitting diode display device

Provided is an organic light emitting display panel with uniform luminance. A flattening layer including a contact hole is disposed on a substrate on which an auxiliary electrode is disposed. The contact hole in the flattening layer has an undercut pattern at a point contacting the auxiliary electrode. The organic light emitting layer is disconnected by the contact hole, but the common electrode is connected with the auxiliary electrode at an undercut pattern portion with a high step coverage as compared with the organic light emitting layer. Since the auxiliary electrode and the common electrode are connected with each other through the contact hole having the undercut pattern in the flattening layer, it is possible to preserve uniform luminance of the organic light emitting display panel.

Organic light emitting display panel with uniform luminance

An organic light emitting diode (OLED) display device is described that includes a shared cathode between OLED pixels as well as auxiliary lines that are formed between rows and/or columns of the OLED pixels. As the cathode is shared between many if not all of the pixels of display device, resistance within the cathode can affect the brightness of those pixels that are further from the cathode's voltage source. The auxiliary lines serve to counteract the voltage drop caused by this resistance. The auxiliary lines are electrically connected to the cathode in close proximity to individual pixels of the display.

Growing community of inventors

Paju-si, South Korea

Suhyeon Kim