H10K59/878

Organic light emitting diode display with color filters having recess portion or convex portion

An organic light emitting diode display that maintains a luminance distribution characteristic of each pixel at the side substantially similar to a luminance distribution characteristic of each pixel at the front of the OLED display by improving a twist of a lateral color with respect to a front color. The organic light emitting diode display includes a substrate, a driving wire disposed on the substrate, a color filter disposed on the driving wire. The color filter includes a blue color filter, a red color filter, and a green color filter formed on the driving wire; and an organic light emitting diode disposed on the color filter, where a recess portion is defined at a lower surface of the blue color filter, and a convex portion is defined at a lower surface of the red color filter or the green color filter.

ORGANIC EL DISPLAY PANEL, ORGANIC EL DISPLAY DEVICE, AND METHOD OF MANUFACTURING ORGANIC EL DISPLAY PANEL
20190371872 · 2019-12-05 ·

An organic EL display panel including pixels arranged in a matrix includes: a substrate; pixel electrodes arranged above the substrate in the matrix; an insulating layer provided above the pixel electrodes and having openings for each pixel electrode; banks extending in a column direction and partitioning between the pixel electrodes in a row direction; organic functional layers provided above the pixel electrodes and including organic light emitting layers where organic electroluminescence occurs in the openings; and a light-transmissive counter electrode provided above the functional layers. The openings include: first openings arranged in line in the column direction; and a second opening adjacent to one of the first openings in the row direction. Portions of the insulating layer between the first openings adjacent in the column direction are lower in height relative to the pixel electrode than a portion of the insulating layer between the first opening and the second opening.

ELECTROLUMINESCENT DEVICE AND DISPLAY PIXEL STRUCTURE USING THE SAME

The present invention discloses a general, highly effective and scalable extraction-enhancing OLED display pixel structure based on embedding the OLED inside a three-dimensional reflective concave structure selectively filled with a high-index filler material. Such a structure is able to couple as much as possible internally generated photons into the filler region and then redirect otherwise confined light for out-coupling via the reflective concave structure. Ultimately high light extraction efficiency approaching 80% and excellent viewing characteristics are simultaneously achievable with optimized structures using highly transparent top electrodes. This scheme is scalable and wavelength insensitive, and thus can be generally applied to all red, green, and blue pixel OLEDs in high-resolution full-color displays.

ANTIREFLECTIVE POLARIZING PLATE, OPTICAL LAMINATE, AND METHOD FOR PRODUCING OPTICAL LAMINATE
20190369292 · 2019-12-05 ·

An antireflective polarizing plate which is disposed on a front surface of an image display panel and is capable of sufficiently restraining visibility deterioration caused by the reflection of external light is provided. The antireflective polarizing plate is disposed on a front surface of an image display panel having a front-surface reflectance of Rp (%), and has a luminosity corrected cross transmittance Tcr (%) satisfying a relation expressed by the following formula: RpTcr150.

ORGANIC LIGHT-EMITTING DIODE DISPLAY PANEL AND MANUFACTURING METHOD THEREOF, AND MASK PLATE

An organic light-emitting diode display panel and a manufacturing method thereof and a mask plate are disposed. The organic light-emitting diode display panel includes a curved part and a non-curved part, the curved part includes a plurality of organic light-emitting diodes, the organic light-emitting diode includes a light adjusting surface, and the light adjusting surface is configured to be capable of guiding light generated from the organic light-emitting diode to exit towards the non-curved part.

DISPLAY DEVICE INCLUDING DUAL GATE OXIDE SEMICONDUCTOR TRANSISTOR
20190341437 · 2019-11-07 ·

A display device includes a driving transistor and an organic EL element. The driving transistor includes an oxide semiconductor layer; a first gate electrode that includes a region overlapping the oxide semiconductor layer; a first insulating layer between the first gate electrode and the oxide semiconductor layer; a second gate electrode that includes a region overlapping the oxide semiconductor layer and the first gate electrode; a second insulating layer between the second gate electrode and the oxide semiconductor layer; and a first and a second transparent conductive layer that are provided between the oxide semiconductor layer and the first insulating layer and each include a region contacting the oxide semiconductor layer. The organic EL element includes a first electrode; a second electrode; a light emitting layer between the first electrode and the second electrode; and an electron transfer layer between the light emitting layer and the first electrode.

DISPLAY DEVICE

A display device includes a substrate having one surface and an opposite surface opposite to the one surface; a micro-LED on the one surface of the substrate, the micro-LED including a light-emitting area; a reflective electrode at at least one side surface of the micro-LED; and an upper reflective layer facing and overlapping the light-emitting area of the micro-LED, wherein the upper reflective layer is configured to reflect light emitted from the light-emitting area of the micro-LED to be directed toward the second surface of the substrate.

Display subpixels having multiple emissive areas with high aspect ratios

A top-emitting subpixel structure may include at least one bank structure defining a plurality of emissive areas, and an emissive structure located in each emissive area. The subpixel structure may have a subpixel length and a subpixel width less than the subpixel length, a ratio of the subpixel length to the subpixel width defining a subpixel aspect ratio. Each emissive area may have an emissive area length and an emissive area width shorter than the emissive area length, a ratio of the emissive area length to the emissive area width defining an emissive area aspect ratio. The subpixel length may define a primary axis when the subpixel aspect ratio is greater than the emissive area aspect ratio; otherwise, the emissive area length may define the primary axis. At least a majority of the emissive areas may be arranged successively widthwise along a secondary axis perpendicular to the primary axis.

Display Device
20240130162 · 2024-04-18 ·

A display device is disclosed. Specifically, there may be provided a display device capable of achieving excellent display quality in a specific viewing angle direction by including a first light emitting portion and a second light emitting portion positioned to surround a portion of a perimeter of the first light emitting portion.

DISPLAY DEVICE

A display device includes: a first substrate including emission areas and a peripheral area surrounding the emission areas; a light emitting element layer on the first substrate and overlapping the emission areas; a plurality of light control patterns overlapping the emission areas and the peripheral area and on the light emitting element layer; and a transmission pattern between the plurality of light control patterns and having a refractive index of about 1.2 or more and less than about 1.5.