An electroluminescent display device includes a substrate; a first electrode on the substrate; a connection pattern on the substrate, the connection pattern comprising a same material as the first electrode; a bank covering edges of the first electrode and the connection pattern; an auxiliary bank on the bank corresponding to the connection pattern; a light-emitting layer on the first electrode; and a second electrode on the light-emitting layer, the bank, and the auxiliary bank, wherein the auxiliary bank has a reversely inclined side surface, and wherein the light-emitting layer includes a hole auxiliary layer, a light-emitting material layer, and an electron auxiliary layer, the electron auxiliary layer has an opening exposing the connection pattern, and the second electrode contacts the connection pattern through the hole.

A display panel and a producing method therefor, a vehicle-mounted rearview mirror, and a display device. The display panel comprises: a base substrate; a pixel defining layer, located at one side of the base substrate, the pixel defining layer comprising a plurality of openings distributed in an array; a cathode layer, located at the side of the pixel defining layer opposite to the base substrate; and an auxiliary cathode layer, located at the side of the cathode layer opposite to the pixel defining layer, the auxiliary cathode layer being directly in contact with and electrically connected to the cathode layer. The auxiliary cathode layer has a first thickness at positions corresponding to the plurality of the openings, and a second thickness at positions other than the openings; the first thickness is less than the second thickness.

The present invention provides a display panel and a display device thereof. The display panel includes a substrate, a reflective layer, pixel retaining walls, first electrodes, a light emitting layer, and a second electrode. In the present invention, by adjusting refractive indexes of first electrodes in each sub-pixel region with different colors, microcavity effects are used to enhance color saturation of emitted light and component efficiency. In this way, difficulties resulting from using vacuum evaporation methods along with fine masks to prepare hole transport layers with different thickness and problems such as low utilization of evaporation material are prevented.

The present application discloses a display substrate. The display substrate may include a base substrate; a plurality of first electrodes arranged in an array on the base substrate; and a pixel defining layer defining a plurality of openings on the base substrate. The plurality of openings may overlap the plurality of first electrodes respectively. The pixel defining layer may include a plurality of first pixel defining units and a plurality of second pixel defining units; and the plurality of first pixel defining units may be separated from one another.

A substrate (100) is a light-transmitting substrate. A light-emitting unit (140) includes a first electrode (110), an organic layer (120), and a second electrode (130). In addition, a light-emitting device (10) includes a first region (102), a second region (104), and a third region (106). The first region (102) is a region overlapping a second electrode (130). In a case where the second electrode (130) has light shielding characteristics, the first region (102) is a region through which light does not pass. The second region (104) is a region including an insulating film (150) among regions between a plurality of light-emitting units (140). The third region (106) is a region which does not include the insulating film (150) among the regions between a plurality of light-emitting units (140). A width of the second region (104) is smaller than a width of the third region (106).

A method of manufacturing an organic light-emitting display apparatus includes: forming a lift-off layer on a substrate including a first electrode, the lift-off layer including a fluoropolymer; forming a pattern layer on the lift-off layer; etching the lift-off layer between patterns of the pattern layer by utilizing a first solvent to expose the first electrode; forming an organic functional layer on the first electrode and the pattern layer, the organic functional layer including an emission layer; removing remaining portions of the lift-off layer by utilizing a second solvent; and forming a second electrode on the organic functional layer.

The present application discloses a display substrate. The display substrate may include a base substrate; a plurality of first electrodes arranged in an array on the base substrate; and a pixel defining layer defining a plurality of openings on the base substrate. The plurality of openings may overlap the plurality of first electrodes respectively. The pixel defining layer may include a plurality of first pixel defining units and a plurality of second pixel defining units; and the plurality of first pixel defining units may be separated from one another.

An organic light emitting diode display device includes a substrate, a first defined area disposed on the substrate, a second defined area including a metal layer disposed on the substrate, a bank layer disposed on the substrate, an electron transport layer disposed above the first defined area and the second defined area, and a cathode layer disposed on the electron transport layer. The first defined area includes an anode layer, a hole injection layer, a hole transport layer, and an organic light emitting layer disposed on the substrate in sequentially. The bank layer is disposed at an edge of the first defined area and in the second defined area, and electrically isolates the first defined area and the second defined area. The electron transport layer includes a cathode contact hole used as an auxiliary cathode, which solves uneven light emission of a large-sized panel and improves display effect.

This disclosure relates to a production method of a display substrate, a display substrate, and a display apparatus. This production method comprises steps of: forming a thin film for a pixel defining layer used to define a light-emitting area of each sub-pixel on a base substrate; forming nanoparticles in a preset area of the thin film for the pixel defining layer, wherein the preset area is an area corresponding to a place between adjacent sub-pixels; and performing patterning treatment on the thin film for the pixel defining layer formed with the nanoparticles, with a material in the preset area being retained, to form a pattern of the pixel defining layer.

A display panel, a display screen, and a display terminal are provided. The display panel includes: a substrate; and a pixel definition layer formed on the substrate; pixel apertures formed on the pixel definition layer; the pixel aperture comprising a first type of pixel aperture; edges of a projection of the first type of pixel aperture on the substrate being curves, and the edges being not parallel to each other.