A display device includes a substrate including a display area including a light emitting area, and a peripheral area surrounding at least a portion of the display area, a first light emitting element disposed in the light emitting area on the substrate and emitting a first light, a light guide layer disposed on the first light emitting element, and transmitting a second light incident from the peripheral area to the display area, a first low refractive layer disposed on the light guide layer and having a refractive index smaller than a refractive index of the light guide layer, a second low refractive layer disposed under the light guide layer and having a refractive index smaller than a refractive index of the light guide layer and a first light control layer disposed on the first low refractive layer and having a first opening exposing the light emitting area.

The present invention relates to a color filter including a color layer having at least one color, a quantum dot layer, and a partition wall in a unitary form for the color layer and the quantum dot layer, a method of manufacturing the color filter, and an image display device including the color filter. The color filter is capable of exhibiting a superior external light suppression effect, thereby improving luminous efficiency, and moreover, it is possible to simplify the process of manufacturing the color filter, thereby improving productivity. In addition, the image display device including the color filter can exhibit improved luminance to thus realize a high-quality image.

A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.

A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.

A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.

Provided is a display panel, comprising a substrate and light-emitting units on a side of the substrate; a black matrix, located on a side of the light-emitting unit way from the substrate, and provided with black matrix openings, a black matrix opening corresponds to a light-emitting unit; and a filter layer, comprising color-resistance units which are disposed in the black matrix openings and at least partially overlap with the light-emitting units of the same color in a direction perpendicular to a plane of the display panel; a color-resistance unit includes microparticles having a particle size, and a difference between the particle size and a wavelength of light emitted by a corresponding light-emitting unit is within a preset range, and the light-emitting units of different colors correspond to different particle sizes of the microparticles of the color-resistance units.

Provided is a display panel, comprising a substrate and light-emitting units on a side of the substrate; a black matrix, located on a side of the light-emitting unit way from the substrate, and provided with black matrix openings, a black matrix opening corresponds to a light-emitting unit; and a filter layer, comprising color-resistance units which are disposed in the black matrix openings and at least partially overlap with the light-emitting units of the same color in a direction perpendicular to a plane of the display panel; a color-resistance unit includes microparticles having a particle size, and a difference between the particle size and a wavelength of light emitted by a corresponding light-emitting unit is within a preset range, and the light-emitting units of different colors correspond to different particle sizes of the microparticles of the color-resistance units.

A display apparatus is provided to include: a first substrate on which a light-emitting device emitting light is located; and a main pixel including a first quantum dot layer; a sub-pixel including a second quantum dot layer, the main pixel and the sub-pixel corresponding to the light-emitting device and being located above the first substrate, wherein the main pixel and the sub-pixel are defined by banks, the main pixel changes a color of the light emitted by the light-emitting device, and the sub-pixel transmits the light emitted by the light-emitting device.

Various aspects of an OLED and related methods of manufacturing are provided, wherein a light extraction substrate of an OLED includes a base substrate; a porous light-scattering layer, including a first material, and having a plurality of holes formed therein; a planarization layer formed on the light-scattering layer, and including a second material; and a plurality of scattering structures including the second material, and formed by the second material infiltrated from the planarization layer into the light-scattering layer to fill at least a part of the plurality of holes, the scattering structures including a plurality of second scattering structures.

A low refractive layer includes a plurality of hollow inorganic particles and a matrix between the hollow inorganic particles, and capable of exhibiting a good refractive index and improved durability by enhancing the weight ratio of the hollow inorganic particles to the matrix. An electronic device according to an embodiment of the inventive concept including the low refractive layer may exhibit improved reliability and good display quality.