Abstract: A display device includes a substrate, a light emitting device disposed on the substrate, a first layer disposed on the light emitting device, a high refractive index layer disposed on the first layer and overlapping the light emitting device, and a low refractive index layer disposed on the first layer and having a lower refractive index than the high refractive index layer, wherein a side surface of the high refractive index layer and a side surface of the low refractive index layer are in contact with each other, and to form an inclined surface, and an angle of the inclined surface is in a range of about 45 to about 80 degrees.

Abstract: A display apparatus includes, a light emitting device disposed over an emission area of a substrate and emitting light of a first wavelength, and a display panel including a color filter disposed over the light emitting device, a transmittance of the color filter of light of the first wavelength is less than a transmittance of the color filter of light of a second wavelength and the second wavelength is greater than the first wavelength, and an angle-dependent color change of the display panel in the emission area of the substrate at standard coordinates (0.1754, 0.1579) is within a trajectory range of about 10 of a MacAdams ellipse.

Abstract: A display device includes a display module and a window module. The display module includes a base layer, a light emitting element layer that is on the base layer and includes a light emitting element, an encapsulation layer on the light emitting element layer, and a color filter layer on the encapsulation layer. The light emitting element includes a first electrode, a second electrode that is on the first electrode and includes transparent conductive metal oxide, and a light emitting layer between the first electrode and the second electrode, and a distance between the first electrode and the second electrode is a primary resonance distance for light emitted from the light emitting layer. The encapsulation layer includes a single first inorganic layer directly on the light emitting element layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer.

Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.

Abstract: A display device includes a plurality of pixels including a first pixel representing green, where each of the pixels includes a light emitting element including an anode, a light emitting layer, and a cathode. The display device further includes a control layer disposed in a direction in which the light emitting element emits light and overlapping the first pixel, and a transmittance of the control layer at a first wavelength band, within a green wavelength band, is lower than a transmittance at a remaining visible light region such that a decrease in a front luminance spectrum by the control layer is greater than a decrease in a side luminance spectrum by the control layer.

Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.