A display substrate and a preparation method thereof, and a display panel are provided. The display substrate includes at least one first sub-pixel and at least one second sub-pixel, the first sub-pixel and the second sub-pixel have different display directions, the first sub-pixel includes a first light-emitting element, the second sub-pixel includes a second light-emitting element, each of the first light-emitting element and the second light-emitting element has a light-emitting structure, the light-emitting structure includes a first reflective layer, a light emitting layer and a second reflective layer which are sequentially stacked, the second reflective layer is located on a light emergent side of the display substrate, and an area of the first reflective layer is larger than an area of the second reflective layer.

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.

Provided is an organic light-emitting diode display device (100) in which an anode electrode (134) extends to cover sides of a reflective metal (131) below the anode electrode (134).

Provided is an organic light-emitting diode display device (100) in which an anode electrode (134) extends to cover sides of a reflective metal (131) below the anode electrode (134).

A light-emitting device (100) includes a substrate (110), a first electrode (120), an auxiliary electrode (124), an insular conductive layer (126), an insulating layer (170), an organic layer (130), and a second electrode (140). The first electrode (120) is formed over the substrate (110), and is formed using a transparent conductive material. The auxiliary electrode (124) is formed over the first electrode (120). The conductive layer (126) is formed over the first electrode (120), and is formed of the same material as that of the auxiliary electrode (124). The insulating layer (170) is formed over a portion of the first electrode (120), and covers the auxiliary electrode (124) and the conductive layer (126). The organic layer (130) is formed over the first electrode (120), and the second electrode (140) is formed over the organic layer (130).

A display device includes a substrate including a first display area and a second display area. The first display area includes first pixel areas, each including one or more first pixels. The second display area includes second pixel areas including one or more second pixels and a light transmittance area having a higher light transmittance than the second pixel area. The first and second display areas include a common electrode that transmits a constant common voltage. The common electrode in the second display area includes patterned regions that correspond to a first light transmittance area included in the light transmittance area. A thickness of the common electrode in the patterned regions is smaller than a thickness of the common electrode in a region other than the patterned regions or equals zero. The patterned regions and the second pixel areas extend alternately along a first direction in the second display area.

A display back panel may include a substrate, an insulating layer disposed on one side of the substrate and including a plurality of recesses, the plurality of recesses including a bottom surface, a first electrode disposed on a surface of the insulating layer away from the substrate, a pixel defining layer disposed on a surface of the first electrode away from the substrate and including a plurality of openings, a light-emitting layer disposed in the plurality of openings and covering the first electrode, and a second electrode disposed on a surface of the light-emitting layer away from the substrate. Therein, the first electrode may reflect waveguide light laterally propagated by the light-emitting layer, thereby improving a light-emitting efficiency of the light-emitting layer. Further, the reflected waveguide light may not be absorbed by the second electrode, thereby enhancing an external quantum effect of the light-emitting layer.

An organic light-emitting diode (OLED) display panel and an OLED display device are provided. A length of a second anode of a second display area extended from a second pixel opening is greater than that of a first anode in a first display area extended from a first pixel opening. Light can be reflected to outside of the display panel through a portion of the second anode extended from the second pixel opening, so that brightness of the second display area is similar or consistent with brightness of the first display area.

The present disclosure provides a display substrate and a method for manufacturing the same and a display device. The display substrate includes: sub-pixels disposed on a base substrate and each including a sub-pixel aperture area, a reflective layer, an insulating layer, independent anode patterns, a light-emitting function layer and a cathode. An orthographic projection of the reflective layer onto the base substrate at least partially overlaps an orthographic projection of the sub-pixel aperture area onto the base substrate. The insulating layer is on one side of the reflective layer away from the base substrate. The anode patterns are on one side of the insulating layer away from the base substrate, and each of orthographic projections of the anode patterns onto the base substrate at least partially overlaps the orthographic projection of the sub-pixel aperture area onto the base substrate. The light-emitting function layer is on one side of the anode patterns away from the base substrate. An orthographic projection of the light-emitting function layer onto the base substrate is within the orthographic projection of the sub-pixel aperture area onto the base substrate. The cathode is on one side of the light-emitting function layer away from the base substrate. An orthographic projection of the cathode onto the base substrate covers the orthographic projection of the light-emitting function layer onto the base substrate.