An electronic device substrate, a manufacturing method and a display device are provided. The electronic device substrate includes a base substrate, an organic encapsulation layer and a padding structure. The organic encapsulation layer is on the base substrate and includes a main part and an edge part; the padding structure on the base substrate protrudes from the base substrate; the edge part of the organic encapsulation layer at least partially covers the padding structure; with respect to the base substrate, a height of a part that is included by the padding structure and is away from the main part of the organic encapsulation layer is greater than a height of another part that is included by the padding structure and is close to the main part of the organic encapsulation layer.

A display panel and a crack detecting method, and a display device are disclosed. The display panel includes a display region and a peripheral region surrounding the display region, the peripheral region being provided with a crack detection circuit structure, the crack detection circuit structure including a detection circuit wire and a first detection switching circuit, the display panel includes a first sub-pixel and a first data line electrically connected to the first sub-pixel, a first end of the first data line is electrically connected to a first end of the detection circuit, a second end of the first data line is electrically connected to a second end of the detection circuit wire through the first detection switching circuit and the second end of the detection circuit wire is configured to receive a detection voltage.

A display panel, methods for manufacturing and detecting the display panel and a display device are provided. The display panel includes: a substrate, including a display region and a circuit region; multiple signal line terminals in the circuit region, coupled with signal lines respectively; multiple switch elements in the circuit region, first terminals of the switch elements are coupled with the signal line terminals respectively; multiple leads located in the circuit region and on a side of the signal line terminals distal to the display region, spaced apart from each other along a first direction, extending along a second direction, first ends of the leads are coupled with the second terminals of the switch elements respectively, second ends of the leads in the second direction extend to an edge of the substrate, each switch element is configured to connect or disconnect the first terminal and the second terminal thereof.

A display device includes a display panel including a display area displaying an image, a non-display area adjacent to the display area, and a plurality of signal lines, and a driving circuit disposed in the non-display area, wherein the driving circuit includes a plurality of bumps arranged in a plurality of rows. The plurality of bumps include a crack detection bump arranged in at least one row among the plurality of rows, the plurality of signal lines include a crack detection line electrically connected to the crack detection bump, and at least a portion of the crack detection line is disposed adjacent to an edge of the driving circuit.

A display panel test circuit that includes a plurality of metal-oxide-semiconductor field-effect transistors (MOSFETs); a first signal line electrically connected to gates of the MOSFETs; a second signal line electrically connected to sources of a part of the MOSFETs; and a third signal line electrically connected to sources of other part of the MOSFETs; wherein sources of any two adjacent MOSFETs of the plurality of MOSFETs are electrically connected to the second signal line and the third signal line, respectively. The display panel test circuit can detect a short circuit problem of a green data signal during a phase of lighting test, and thereby monitor and increase yields of AMOLED display panels.

A flexible display panel and a fabricating method thereof are provided. The fabricating method has: disposing an active layer and a gate of a switching tube of the flexible display panel sequentially on a substrate, wherein the switching tube is in the display area; disposing a source and a drain on the gate, wherein a signal connection line at same layer as the source and the drain is disposed in the non-display area; disposing a first insulating layer and a metal connection line sequentially on the source and the drain, wherein the first insulating layer and/or the metal connection line further extends into the non-display area and covers the signal connection line. This application increases thickness of film layers on the signal connection line, and also avoids phenomenon that the signal connection line is etched away due to over-etching upon etching the metal connection line, thereby causing disconnection phenomenon.

A TEG near the perimeter of a frame region is away from a TFT, which is disposed in a display region and is actually used for screen display. Hence, the characteristics of the TEG can change in a manner different from that in the characteristics of the TFT within the display region. Accordingly, provided is a display device that includes a TEG pattern disposed between the display region and a trench, and includes a dummy pixel circuit disposed between the display region and a barrier wall. The TEG pattern is outside the display region and is adjacent to at least the dummy pixel circuit.

The present disclosure provides a light-emitting structure, a display panel, a display device, and a control method for a display panel, so as to solve the problem that the user's eyes cannot clearly see the image displayed by the display panel due to ambient light. The light-emitting structure includes a light-emitting unit and a variable reflectivity unit. The light-emitting unit includes a first electrode, a second electrode and a light-emitting layer in between. The first electrode is a transparent electrode. The variable reflectivity unit includes a piezoelectric structure and a layer of liquid reflective material between the first electrode and the piezoelectric structure. A thickness of the layer of the liquid reflective material filled between the piezoelectric structure and the first electrode is changed by deformation of the piezoelectric structure. The light-emitting structure is used to emit light for displaying the image.

An ink jet process is used to deposit a material layer to a desired thickness. Layout data is converted to per-cell grayscale values, each representing ink volume to be locally delivered. The grayscale values are used to generate a halftone pattern to deliver variable ink volume (and thickness) to the substrate. The halftoning provides for a relatively continuous layer (e.g., without unintended gaps or holes) while providing for variable volume and, thus, contributes to variable ink/material buildup to achieve desired thickness. The ink is jetted as liquid or aerosol that suspends material used to form the material layer, for example, an organic material used to form an encapsulation layer for a flat panel device. The deposited layer is then cured or otherwise finished to complete the process.

A display device includes a sensing line and a data driver. The sensing line is in a display panel. The data driver includes a plurality of integrated circuits. Each of the integrated circuits includes an interface, which includes a mobile industry processor interface (MIPI) and a crack detector. The crack detector detects cracks of the panel based on the sensing line and transmits and receives information corresponding to the crack to and from adjacent ones of the integrated circuits using a transmission terminal and a reception terminal in the MIPI.