A display panel is disclosed and includes a substrate, a plurality of first light-emitting units, and a plurality of first mesh units. The substrate has a first display region, in which the first display region includes a transparent area. The first light-emitting units are disposed in the first display region and outside the transparent area in a top view direction of the display panel. The first mesh units are disposed in the first display region in the top view direction of the display panel, in which each of the first mesh units has a first mesh frame, and the first mesh frame forms a plurality of first mesh openings. The transparent area overlaps at least one of the first mesh openings in the top view direction of the display panel.

Disclosed is a display panel. The display panel includes a first display area and a second display area. The second display area includes a transparent display area, a drive display area, and a transition display area. An arrangement density of third pixel driving circuits in the transition display area is less than or equal to an arrangement density of second pixel driving circuits in the drive display area.

The circular polarizer may be omitted from a display to increase efficiency. A polarizer-free display may use other non-polarizer techniques to mitigate reflections of ambient light and mitigate diffraction reflection artifacts. The polarizer-free display may include a black pixel definition layer that absorbs ambient light. Color filter elements may be included in a black matrix to mitigate ambient light reflections. An intra-anode phase shift layer and/or an inter-anode phase shift layer may be included in the display to mitigate diffractive reflection artifacts. Multiple sub-pixels of the same color may be used in a single pixel to ensure a neutral reflection color. The display may include a cathode layer that is patterned to have openings over the black pixel definition layer to mitigate reflections. The display may include diffusive particles (in the color filter element or in a separate diffuser layer) to mitigate diffractive reflection artifacts.

A display panel includes first display regions, and a second display region between the two first display regions. Each of the first display regions includes first pixels. The second display region includes second pixels disposed in a second direction intersecting a first direction. Each of the second pixels include a first color light-emitting element, a second color light-emitting element, and a third color light-emitting element which are disposed in the first direction. An arrangement of the first color light-emitting element, the second color light-emitting element, and the third color light-emitting element of each of the first pixels may be different from an arrangement of the first color light-emitting element, the second color light-emitting element, and the third color light-emitting element of each of the second pixels.

A display apparatus, a mask assembly for manufacturing the display apparatus, and an apparatus for manufacturing the display apparatus. The display apparatus includes a substrate, a first pixel electrode, a second pixel electrode, and a third pixel electrode located on the substrate and adjacent to one another, a first lower emission layer, a second lower emission layer, and a third lower emission layer respectively corresponding to the first through third pixel electrodes and configured to emit light of different wavelength bands, a counter electrode located on the first through third lower emission layers, and a first common layer located between the first through third pixel electrodes and the first through third lower emission layers. The first common layer includes a 1-1.sup.st pattern unit, a 1-2.sup.nd pattern unit, and a 1-3.sup.rd pattern unit respectively corresponding to the first through third pixel electrodes and disconnected from one another.

A display device includes a pixel electrode, a wall layer, an emission layer, a touch electrode, and a light blocking member. The wall layer includes an opening exposing the pixel electrode. The emission layer overlaps the pixel electrode. The light blocking member overlaps the touch electrode and includes a first opening and a second opening each exposing the emission layer. A first perimeter section of the first opening is spaced from a first perimeter section of the opening by a first distance in a first direction in a plan view of the display device. A second perimeter section of the first opening is spaced from a second perimeter section of the opening by a second distance in a second direction in the plan view. The second distance is equal to the first distance. The second direction is at 45 degrees relative to the first direction.

The present invention provides an organic light emitting diode (OLED) display panel. At least one light transmissive region used for placing photosensitive elements thereon is defined in a display region of the OLED display panel. Special-shaped sub-pixels are arranged at a periphery of each of the at least one light transmissive region. Each special-shaped sub-pixel comprises at least one recess, and the at least one recess is at one side of the special-shaped sub-pixel facing a corresponding one of the at least one light transmissive region. An edge of each of the at least one recess conforms in shape to an edge of a corresponding one of the at least one light transmissive region.

An organic light emitting display device includes: light emitting diodes respectively located in first to third sub-pixels on a substrate and respectively emitting red, green and blue color lights output upward through emission regions of the first to third sub-pixels; and a reflection structure located in a non-emission region surrounded by the first to third sub-pixels and including reflection side surfaces which are inclined and respectively face the emission regions of the first to third sub-pixels, wherein the reflection side surface reflects a light incident thereon from the corresponding emission region upward.

An electroluminescent display panel includes a plurality of repeating units each including a first conductive layer, a first insulating layer including a first via hole, and an anode including a main body and an auxiliary portion. At least one repeating unit includes a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel; the area of the main body of the third-color sub-pixel is larger than that of the second-color sub-pixel and that of the first-color sub-pixel; and an overlapping area between the main body of the third-color sub-pixel and the first conductive layer is larger than that between the main body of the second-color sub-pixel and the first conductive layer, and the overlapping area between the main body of the third-color sub-pixel and the first conductive layer is larger than that between the main body of the first-color sub-pixel and the first conductive layer.

A display device includes a first display unit and a second display unit. The first display unit emits a red light having a first output spectrum corresponding to a highest gray level of the display device. The second display unit emits a blue light having a second output spectrum corresponding to the highest gray level of the display device. An intensity integral of the first output spectrum within a range from 380 nm to 780 nm is defined as a first intensity integral, an intensity integral of the second output spectrum within a range from 511 nm to 597 nm is defined as a second intensity integral, and a ratio of the second intensity integral to the first intensity integral is greater than 0% and less than or equal to 29.0%.