An organic light emitting diode display is provided that may include a first substrate, a plurality of electrodes on the first substrate and spaced apart from each other, a pixel defining layer on the plurality of electrodes, spacers on the pixel defining layer, and a second substrate on the spacers. The pixel defining layer includes a plurality of openings spaced apart from each other and respectively open to the plurality of electrodes. The spacers on the pixel defining layer are at crossing points of a plurality of virtual lines, the spacers crossing spaces between adjacent openings of the plurality of openings.

A reliable light-emitting element with low driving voltage is provided. The light-emitting element includes an electron-injection layer between a cathode and a light-emitting layer. The electron-injection layer is a mixed film of a transition metal and an organic compound having an unshared electron pair. An atom of the transition metal and the organic compound form SOMO.

A QLED light-emitting device is provided, including a first electrode layer, an electron injection layer, an electron transport layer, a light-emitting layer, a hole transport layer, a hole injection layer, and a second electrode layer. Wherein, the light-emitting layer includes a plurality of quantum dot layers disposed in a stack, and insulating layers are disposed among the quantum dot layers adjacent to one side of the electron injection layer. Through disposing the insulating layers among the quantum dot layers adjacent to the one side of the electron injection layer, an electron transmission rate is reduced, thereby balancing the electron transmission rate and a hole transmission rate and improving luminous efficiency of QLEDs.

A display panel includes: a first substrate including a plurality of light emitting elements to emit a first light; and a second substrate disposed on the first substrate, the second substrate including: a first color filter including a first blue filter, a second blue filter, and a third blue filter disposed on the first substrate; a light control layer including a first light control portion to transmit the first light and disposed on the first blue filter, a second light control portion to convert the first light to a second light and disposed on the second blue filter, and a third light control portion to convert the first light to a third light and disposed on the third blue filter; and a second color filter exposing an upper surface of the first light control portion and covering the second light control portion and the third light control portion.

Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.

The present application discloses a display panel and method of manufacturing thereof. The display panel of the present application includes a substrate, an active switch, a color photoresist layer, a first electrode layer, a light emitting diode, a second electrode layer, an encapsulation layer and a driver circuit. The light emitting diode includes a red light emitting layer, a green light emitting layer and a blue light emitting layer which includes a silicon-germanium quantum dot material.

A display device includes a first pixel, a second pixel, and a third pixel each of which includes a first electrode on a substrate, a first sub-light emitting portion on the first electrode, a first charge generation layer on the first sub-light emitting portion, a second sub-light emitting portion on the first charge generation layer, and a second electrode on the second sub-light emitting portion. The second sub-light emitting portion includes a hole transport layer on the first charge generation layer and an emission layer on the hole transport layer. The hole transport layer of the first pixel is on the first charge generation layer of the first pixel and completely covers the first charge generation layer of the first pixel. A part of an edge of the hole transport layer of the first pixel overlaps the first charge generation layer of the second pixel.

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.

Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.

An OLED waveguide assembly including an organic light emitting diode assembly, a waveguide layer and a substrate. The organic light emitting diode assembly is separated from the waveguide layer by a spacer layer, and the organic light emitting diode assembly has a maximum emission at a wavelength of 470 nanometers. The waveguide layer is nanostructured. The substrate has pixel-dependent nanostructures with a lattice constant of approximately 400±50 nanometers, suitable for the emissions of the waveguide layer. The waveguide layer or a layer situated in front of the waveguide has the function of a wavelength converter having a maximum absorption at 470 nanometers and having a maximum emission at 620 nanometers. The lattice structure does not match the emission of the installed OLED. Ideally, all of the primary light is converted or any residual is filtered out. Further an OLED-waveguide assembly production method.