A display panel includes a main display area, and a component area including a transmission area. The display panel includes a substrate including a groove disposed in the transmission area in a depth direction of the substrate; main display elements disposed above the substrate in the main display area; main pixel circuits electrically connected to the main display elements; and auxiliary display elements disposed above the substrate in the component area; and auxiliary pixel circuits electrically connected to the auxiliary display elements.

In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.

One or more embodiments of the present disclosure provides a stretchable display device. The stretchable display device includes a lower substrate including a display area and a non-display area, a plurality of first substrates and a plurality of second substrates disposed in the display area, a plurality of light emitting elements disposed on each of the plurality of first substrates, a switching transistor and a driving transistor disposed on each of the plurality of second substrates, in which the switching transistor may output a data signal to the driving transistor in accordance with a scan signal and the driving transistor may output a driving current to the light emitting element in accordance with the data signal.

A technique of producing a stack defining a plurality of TFTs including at least source/drain electrodes and addressing lines at a source/drain level, wherein the method comprises: forming a patterned source/drain level stack comprising at least a first layer over the support substrate and a second layer over the first layer, to define at least said source/drain electrodes and said addressing lines; depositing semiconductor channel material over at least said source/drain electrodes and said addressing lines; and patterning the layer of semiconductor channel material by a patterning process; wherein the material of the first layer is more resistant to removal by said patterning process than the material of said second layer.

A display device includes: a substrate; an insulating layer on a top surface of the substrate; a plurality of light-emitting diodes on the insulating layer and including two light-emitting diodes spaced apart from each other and having a transmission area therebetween; an encapsulation member covering the plurality of light-emitting diodes; and a rear cover layer located on a rear surface of the substrate and including a first portion located in the transmission area, wherein the first portion includes a transparent material.

A flexible display substrate for a foldable display apparatus, a method of manufacturing the flexible display substrate, and a foldable display apparatus are disclosed. The flexible display substrate includes: a first region corresponding to a non-foldable region of the foldable display apparatus; a second region corresponding to a foldable region of the foldable display apparatus; a plurality of first pixel units disposed in the first region, configured to display an image, and each including a polysilicon thin film transistor; and a plurality of second pixel units disposed in the second region, configured to display an image, and each including an organic thin film transistor.

Methods for producing and integrating single-walled carbon nanotubes (SWCNT) into existing TFT backplane manufacturing lines are provided. In contrast to LTPS and oxide TFT backplanes, SWCNT TFT backplanes exhibit either equivalent or better figures of merit such as high field emission mobility, low temperature fabrication, good stability, uniformity, scalability, flexibility, transparency, mechanical deformability, low voltage and low power, bendability and low cost. Methods and processes for integrating SWCNTs technologies into existing TFT backplane manufacturing lines, pilot test and mass production can start without additional capex needs are also provided.

A method of making an OLED device includes providing a first undercut lift-off structure over the device substrate having a first array of bottom electrodes. Next, one or more first organic EL medium layers including at least a first light-emitting layer are deposited over the first undercut lift-off structure and over the first array of bottom electrodes. The first undercut lift-off structure and overlying first organic EL medium layer(s) are removed by treatment with a first lift-off agent comprising a fluorinated solvent to form a first intermediate structure. The process is repeated using a second undercut lift-off structure to deposit one or more second organic EL medium layers over a second array of bottom electrodes. After removal of the second undercut lift-off structure, a common top electrode is provided in electrical contact with the first and second organic EL medium layers.

Provided are a display substrate and a preparation method thereof, a display panel, and a display device. The display substrate includes a substrate and a plurality of pixel units on the substrate. The pixel unit comprises a plurality of functional layers that are sequentially arranged in a direction away from the substrate. At least one of the plurality of functional layers, which is close to the substrate, constitutes a vertical thin film transistor (VTFT). At least one of the plurality of functional layers, which is away from the substrate, constitutes an organic light-emitting transistor (OLET). An orthographic projection region of the OLET on the substrate and an orthographic projection region of the VTFT on the substrate at least partially overlap.

A display module includes a window including a base substrate and a bezel pattern overlapping the base substrate in a plan view, and a display panel. The bezel pattern includes a first bezel pattern extending along an edge of the base substrate, and a second bezel pattern which extends from the first bezel pattern and of which at least a portion defines a transmission area. The display panel includes a glass substrate, an encapsulation substrate on the glass substrate, a sealing member coupling the glass substrate and the encapsulation substrate and overlapping the first bezel pattern in the plan view, a circuit element layer disposed on the glass substrate and including a transistor, and a display element layer disposed on the circuit element layer and including light emitting elements. The display element layer exposes a portion of a layer disposed thereunder, which corresponds to the transmission area.