A display device includes a display panel on which a first light emitting element and a second light emitting element adjacent to the first light emitting element are disposed. A sensor layer including a touch electrode is disposed on the display panel. The touch electrode includes a first portion having a first width, a second portion having a second width that is smaller than the first width, and a third portion connecting the first portion to the second portion. The first portion, the second portion, and the third portion are each disposed between the first light emitting element and the second light emitting element.

A display device includes: a substrate, a light emitting element which is on the substrate and emits light in a light emitting direction; and a side wall layer including a plurality of light control patterns arranged along the substrate, where the side wall layer is adjacent to the light emitting element in the light emitting direction of the light emitting element. Within the side wall layer which is adjacent to the light emitting element in the light emitting direction, each of the plurality of light control patterns has a certain height, the plurality of light control patterns are arranged along a major surface of the substrate and spaced apart from each other by a certain distance between two adjacent light control patterns of the light control patterns, and a ratio of the height to the distance is greater than about 1.4.

Disclosed are a display module and an electronic device. The display module includes a photosensitive region and a non-photosensitive region located on at least one side of the photosensitive region. The display module further includes a light-emitting element located in the photosensitive region and the non-photosensitive region, a light-shielding layer located at the photosensitive region and the non-photosensitive region and at a light-exiting side of the light-emitting element, and a light-guiding layer at least located at the photosensitive region and at a side of the light-emitting element facing away from the light-shielding layer. The light-guiding layer includes light-guiding openings, the light-shielding layer includes first light-shielding openings located in the photosensitive region and second light-shielding openings located in the non-photosensitive region, and the first light-shielding openings at least partially overlap the light-guiding openings along a thickness direction of the display module.

A display panel including a substrate, a light-emitting element layer, and a light-shielding layer. The light-shielding layer is arranged at a side of the light-emitting element layer facing away from the substrate. In the light-emitting element layer, an auxiliary light-emitting element is arranged at a periphery of the primary light-emitting element. The light-shielding layer includes a first opening corresponding to the primary light-emitting element and a light-shielding part covering the auxiliary light-emitting element. When both the primary light-emitting element and the auxiliary light-emitting element emit light, the viewer at a large viewing angle sees light emitted by the primary light-emitting element and interfering light emitted by the auxiliary light-emitting element; and when the primary light-emitting element emits light and the auxiliary light-emitting element does not emit light, the viewer only sees the light emitted by the primary light-emitting element.

A viewing angle controlling film for a display device includes a first base member, a first electrode disposed on the first base member; a transparent resin layer which is disposed on the first electrode and has a plurality of accommodating units; a second electrode disposed on the transparent resin layer; and a second base member disposed on the second electrode, and in which an ink including charged black particles, charged high refractive particles, and a solvent is accommodated in each of the plurality of accommodating units and the charged black particles are charged with a charge opposite to the charged high refractive particles.

Embodiments of the disclosed subject matter provide a device having a full-color organic light emitting device (OLED) display having a plurality of pixels, with each pixel having a plurality of sub-pixels and where no individual sub-pixel of the plurality of sub-pixels emits white light. The OLED display may be configured to operate with a luminance of at least 1,000 cd/m.sup.2 at the D65 or higher white point, and using not more than a 0.5 mA/cm.sup.2 drive current for a blue sub-pixel of the plurality of sub-pixels based on an overall active area of the full-color OLED display.

Provided is an OLED display panel. The OLED display panel includes an OLED display substrate; a package substrate, opposite to the OLED display substrate, wherein a gap is defined between the package substrate and the OLED display substrate, and the gap is filled with a gas having a refractive index less than that of the package substrate; and a scattering structure, disposed on a side, distal from the OLED display substrate, of the package substrate, wherein the scattering structure is a single-layer or multi-layer structure configured to scatter light passing through the scattering structure.

A display apparatus that includes a substrate; a first light-emitting device, a second light-emitting device, and a third light-emitting device, which are arranged on the substrate and respectively form emission areas by emitting light of wavelengths different from one another; a low-reflection layer arranged on the first light-emitting device, the second light-emitting device, and the third light-emitting device and including an inorganic material; a light-shielding layer arranged above the low-reflection layer, corresponding to a non-emission area between the emission areas and having openings corresponding to the emissions areas; a color filter layer arranged in the openings of the light-shielding layer, corresponding to only the first light-emitting device among the first light-emitting device, the second light-emitting device, and the third light-emitting device; and a reflection control layer arranged on the light-shielding layer and the color filter layer is provided.

The present disclosure relates to an OLED display substrate, including: a base substrate; a light emitting structure layer, and a light extraction structure . The light extraction structure includes a plurality of light extraction layers corresponding to the plurality of sub-pixels one-to-one; the orthographic projection of each of light extraction layers on the base substrate covers a corresponding sub-pixel, and the thicknesses of the light extraction layers corresponding to the sub-pixels of the same color are the same. The plurality of light extraction layers at least includes a first light extraction layer corresponding to a first sub-pixel of a first color, and the thickness of the first light extraction layer is different from the thickness of the light extraction layers corresponding to the sub-pixels of other colors, so that the OLED display substrate renders preset colors under preset viewing angles.

Embodiments of this disclosure disclose a display panel and a display device including the display panel. The display panel includes a base substrate, the base substrate including a display area and a non-display area around the display area, a touch electrode layer on the base substrate, the touch electrode layer being within the display area of the base substrate, and a plurality of signal lines electrically connected with the touch electrode layer, the plurality of signal lines being distributed within a first area of the non-display area adjacent to the display area. The display panel further includes a plurality of outer dummy traces within a second area of the non-display area, the second area is between the first area and an outer border of the non-display area, and the plurality of outer dummy traces and the plurality of signal lines are separated from each other.