A display substrate, a display panel, and a display device are provided. The display substrate includes: a base substrate; a first semiconductor layer on the base substrate; and a second semiconductor layer on a side of the first semiconductor layer away from the base substrate. The display substrate further includes a plurality of thin film transistors on the base substrate, which at least include a first transistor, a second transistor and a third transistor. Each of the plurality of thin film transistors includes an active layer. The active layer of at least one of the first transistor and the second transistor is located in the second semiconductor layer and contains an oxide semiconductor material. The active layer of the third transistor is located in the first semiconductor layer and contains a polysilicon semiconductor material. At least one of the first transistor and the second transistor has a dual-gate structure.

The present application provides a display panel, a manufacturing method thereof, and a display device; first intervals and second intervals are defined between a plurality of first electrodes, a plurality of first pixel banks are arranged corresponding to the first intervals, and a plurality of second pixel banks are arranged corresponding to the second intervals, wherein the second pixel banks cross over the first pixel banks, and a thickness of the second pixel banks is greater than a thickness of the first pixel banks, so that light-emitting materials of a same color can be continuously printed between adjacent ones of the second pixel banks.

A display substrate includes a base, a voltage signal line, a driving circuit structure, a cathode overlapping layer and a cathode layer. The voltage signal line is located in the non-display region and is arranged around the display region. The driving circuit structure is located in the non-display region, and is located at a side of the voltage signal line proximate to the display region in a first direction. The cathode overlapping layer is located in the non-display region and is arranged around the display region. At least a part of a surface of a first portion of the cathode overlapping layer proximate to the base is in electrical contact with a corresponding part of the voltage signal line. An orthographic projection of a second portion of the cathode overlapping layer on the base at least partially overlaps an orthographic projection of the driving circuit structure on the base.

Provided are an inkjet printing apparatus and a printing method of a bipolar element by using the inkjet printing apparatus. The inkjet printing apparatus includes: a stage that moves in a first direction; an inkjet device that sprays ink on the stage; a. plurality of electric field generating devices that generate an electric field on the stage, are spaced apart from the stage, and are movable in the first direction independently from the stage; a light irradiation device that irradiates the stage with light; and a drying device that dries the ink sprayed on the stage, wherein the inkjet device, the light irradiation device, and the drying device are arranged along the first direction,

A display device of the present disclosure has the following: a display region including a thin-film transistor; a frame region surrounding the display region; a terminal section provided in the frame region; a resin layer provided above a base; an inorganic insulating layer provided on the resin layer and having an opening; and a conductive pattern provided on the inorganic insulating layer in a location except a location over the opening.

A display substrate has at least two wiring areas, a hole border area surrounding the wiring areas, a display area surrounding the hole border area, at least one through hole area, at least one blind hole area. The blind hole area is light-transmitting. Each through hole area and each blind hole area are both surrounded by a respective wiring area. The display substrate includes a base substrate having a through hole in each through hole area, and a driver circuit layer which includes at least one metal layer located in the display area and the wiring areas, and at least one insulating layer located In the display area, the hold border area, the wiring areas, and the at least one blind hole area. The metal layer Includes a plurality of signal lines arranged to avoid the at least one through hole area and the at least one blind hole area.

A method of manufacturing a stretchable electronic device includes the steps of: a) depositing a release layer on a temporary rigid substrate; b) depositing a sacrificial layer on the release layer; c) fabricating conductive traces and electrical contacts on top of the sacrificial layer; d) mounting surface mount components (SMCs) to the electrical contacts; e) depositing a first stretchable polymer layer over the conductive traces and SMCs to form a stretchable substrate; f) separating the rigid substrate and release layer from the sacrificial layer and the stretchable substrate at an interface between the release layer and the sacrificial layer; g) removing the sacrificial layer from the stretchable substrate; and h) depositing a second stretchable polymer layer on a surface of the stretchable substrate exposed by removing the sacrificial layer.

A display substrate and a preparing method thereof, and a display apparatus are provided. The display substrate includes a display region and a peripheral region, wherein the peripheral region includes a circuit board pin region and a test pin region which are located on at least one side of the display region. The display substrate further includes: a plurality of sub-pixels, and a first power supply line electrically connected with the plurality of sub-pixels; at least one first bonding power supply pin, located in the circuit board pin region, electrically connected with the first power supply line, and configured to transmit a first power supply signal to the plurality of sub-pixels in a display stage; a second power supply line, located in the peripheral region and surrounding the display region.

A high-definition or high-resolution display apparatus is provided. In the display apparatus, a first light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode. A second light-emitting device includes a second pixel electrode, a second light-emitting layer, and the common electrode. End portions of the first and second pixel electrodes are covered with a first insulating layer. A second insulating layer covers side surfaces of the first and second light-emitting layers. A first color conversion layer overlaps the first light-emitting device. A second color conversion layer overlaps the second light-emitting device. The first and second light-emitting devices each have a function of emitting blue light. The first and second color conversion layers each have a function of converting light.

A display device is provided with a display area and a frame area on a flexible substrate. The display area includes a transistor and a light-emitting element, and the frame area surrounds the display area. The display device includes: an upper inorganic insulating film, a first upper metal layer, a first resin layer, a protective layer, a second upper metal layer, a second resin layer, and a third resin layer provided in a stated order above a semiconductor layer of a transistor. In a display area, the protective layer covering a whole upper face of the first resin layer comes into contact with an upper wire included in the second upper metal layer.