The present application discloses a display panel and a display device. The display panel includes pixel areas and transmitting areas in a first display area. The display panel further includes a light-emitting unit layer including light-emitting units, an auxiliary layer, a first electrode layer covering the light-emitting unit layer and at least part of the auxiliary layer, and a transparent auxiliary electrode layer at least covering part of the auxiliary layer and electrically connected to the first electrode layer. A thickness of the first electrode layer on the auxiliary layer is less than a thickness of the first electrode layer on the light-emitting unit layer.

A display device includes: an organic layer including a light-emitting layer, the light-emitting layer including an organic light-emitting material; a reflective layer configured to reflect light generated at the light-emitting layer; a first electrode that is transparent; a second electrode that is transparent; and an optical adjustment layer configured to adjust an optical distance between the reflective layer and the second electrode. The reflective layer, the optical adjustment layer, the first electrode, the organic layer, and the second electrode are arranged in order. A reflectance of a first interface between the organic layer and the first electrode and a reflectance of a second interface between the organic layer and the second electrode are each 11% or less.

According to an embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition including a lower portion and an upper portion, an organic layer covering the lower electrode through the pixel aperture, and an upper electrode covering the organic layer. The rib includes a taper portion which surrounds the pixel aperture and in which a thickness decreases toward the pixel aperture. The organic layer includes an end portion on the rib and a thickness deceasing portion in which a thickness decreases toward the end portion. Further, the thickness decreasing portion covers at least part of the taper portion.

According to one embodiment, a display device includes first and second lower electrodes, a rib including first and second pixel apertures, a first organic layer, a second organic layer, a first upper electrode, a second upper electrode, and a partition including a lower portion and an upper portion. The partition includes first and second portions. A first height from an upper surface of the first lower electrode overlapping the first pixel aperture to an upper surface of the first portion is different from a second height from an upper surface of the second lower electrode overlapping the second pixel aperture to an upper surface of the second portion.

According to an embodiment, a display device includes a lower electrode, a rib including an aperture overlapping the lower electrode, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, an upper electrode which faces the lower electrode and is formed of a metal material, an organic layer between the lower and upper electrodes, and a transparent conductive layer covering the upper electrode. According to an aspect of the embodiment, the side surface of the lower portion includes a recess, and the conductive layer is in contact with, of the side surface of the lower portion, an area located above the recess.

Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line. As such, an inner area and an edge area in each sub pixel have uniform electric field distribution.

A display substrate, a preparation method and a brightness compensation method therefor, and a display apparatus are provided. The display substrate includes a drive structure layer disposed on a substrate, a light-emitting element disposed on the drive structure layer, and a light detection unit which is disposed on the light-emitting element and is configured to detect the brightness of the light-emitting element, wherein the drive structure layer includes a pixel drive circuit, the light-emitting element includes a first electrode, an organic functional layer and a second electrode which are stacked on the drive structure layer, and the first electrode is connected to the pixel drive circuit; and the light detection unit includes a third electrode, a photosensitive active layer and a fourth electrode which are stacked.

OLED display panel is provided which can control the problem of shedding even high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 provided on substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.

The display panel includes a planar display area and a curved display area. The display panel includes a light emitting layer, a cathode layer, and an optical coupling layer. A thickness of at least one of the cathode layer and the optical coupling layer in the curved display area is different from a thickness of at least one of the cathode layer and the optical coupling layer in the planar display area, so that a luminous efficiency of the light emitting layer in the curved display area is greater than a luminous efficiency of the light emitting layer in the planar display area. The brightness of the curved display area is improved, and the problem of low brightness of the display panel in the curved display area is improved.

Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line. As such, an inner area and an edge area in each sub pixel have uniform electric field distribution.