The present application provides a display panel, a fabrication method thereof, and a display device. The display device includes a light-emitting layer disposed on a driver substrate. A doping concentration of a red light-emitting layer of the light-emitting layer gradually increases or decreases from a center point of the display panel to the area outside the center point, so that a luminous efficiency of a red light-emitting layer at a center point of the display panel is consistent with a luminous efficiency of the red light-emitting layer in an area outside the center point of the display panel, which solves the problem of color shifting around the display panel.

The present disclosure provides an optical adhesive layer, a stretchable display device and a preparing method for the optical adhesive layer. The optical adhesive layer includes: an edge region enclosing a hollow portion; a plurality of block regions distributed in the hollow portion along a first direction and a second direction; and connection ribs connecting the block regions to the edge region, wherein the connection ribs are distributed in the hollow portion in a net form, and the connection ribs include a plurality of first ribs, second ribs, and third ribs connecting the block regions with the first and second ribs.

An inward foldable screen electronic device having a flexible display that includes an encapsulation layer, a light-emitting layer, a substrate, a base film, and a support sheet that are sequentially stacked. An interface exists between the encapsulation layer and the light-emitting layer, and the support sheet has a complete surface. The encapsulation layer and the light-emitting layer of the flexible display are not prone to lift off from each other.

An organic light-emitting diode (OLED) display panel, a manufacturing method thereof, and an OLED display device are provided. At least one of a substrate or a backplate in the OLED display panel has a reduced thickness, thereby increasing light transmittance of an electronic element area. Furthermore, an area where a camera lens is disposed can display normally and an under-display camera can be realized without defining a hole. Therefore, a screen-to-body ratio is increased, and a technical problem is solved: in conventional OLED display panels, the hole needs to be defined on the area where the camera lens is disposed, leading to a display effect being affected.

A display device includes a touch panel; a display panel under the touch panel and displaying an image; a piezoelectric element under the touch panel and including an upper electrode, a lower electrode and a piezoelectric layer; and a rectifying circuit connected to the piezoelectric element.

An electronic device is disclosed. An electronic device may include: a foldable housing including a hinge, a first housing connected to the hinge and including a first surface oriented in a first direction and a second surface oriented in a second direction opposite the first direction, a second housing connected to the hinge and including a third surface oriented in a third direction and a fourth surface oriented in a fourth direction opposite the third direction, wherein the second housing is configured to be folded on the first housing about the hinge, and side surfaces surrounding at least a part of a space between the first surface and the second surface and at least a part of a space between the third surface and the fourth surface; and a display having ductility and extending from the first surface to the third surface to configure the first surface and the third surface, wherein the foldable housing is disposed along an edge of the display and includes bezels extending from respective side surfaces to an active area of the display, and wherein the bezels include, in an area configuring the first surface and the third surface of the foldable housing, extensions spaced apart from edge portions of the display, and support portions disposed between the edge of the display and the extensions to be in contact with the edge portions of the display.

The present disclosure is directed to providing a support substrate for a display device capable of obtaining high transparency while accomplishing thinning and flexibility of an organic EL display device.

In view of the above, the present disclosure provides a support substrate for a display device including a TFT glass substrate having a thickness of 10 μm to 150 μm, and a polyimide resin layer having a thickness of 150 nm or less installed in contact with the TFT glass substrate.

A display panel and a display apparatus where a peripheral structure surrounds a light extraction structure and has a smaller refractive index than the light extraction structure. The light extraction structure includes a first portion and a second portion located at a side of the first portion away from a substrate. An area of an orthographic projection of the second portion on the substrate is greater than an area of an orthographic projection of the first portion on the substrate. The first portion includes a first sidewall, and the second portion includes a second sidewall. The first sidewall extends away from a first axis. The first axis is perpendicular to the substrate and passes through a center of the orthographic projection of the light extraction structure on the substrate.

A display device includes a base layer, a circuit layer on the base layer, an auxiliary pixel defining layer disposed on the circuit layer and that includes a first opening adjacent to the circuit layer and a second opening above the first opening, an inorganic protective layer disposed on the auxiliary pixel defining layer and that includes a third opening above the second opening, a pixel defining layer disposed on the inorganic protective layer and that includes a fourth opening above the third opening, a light-emitting element disposed on the circuit layer and that includes a first electrode, a functional layer disposed on the first electrode, and a second electrode disposed on the functional layer, an auxiliary electrode layer that covers the pixel defining layer and the light-emitting element, and an inorganic layer disposed on the auxiliary electrode layer and that overlaps the pixel defining layer and the light-emitting element.

Embodiments provide a heterocyclic compound, a light-emitting device that includes the heterocyclic compound, and an electronic apparatus that includes the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer, and at least one of the heterocyclic compound. The heterocyclic compound is represented by Formula 1, which is explained in the specification:

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