A display substrate includes a substrate, at least one inorganic film, metal film(s) and organic film(s), the at least one inorganic film is disposed on the substrate; at least one edge portion of the entire at least one inorganic film is step-shaped. The metal film(s) are disposed on a side of the at least one inorganic film facing away from the substrate. A metal film includes a conductive pattern and residual pattern(s), and an orthographic projection of a residual pattern on the substrate is located within an orthographic projection of a step-shaped edge portion of the at least one inorganic film on the substrate. An organic film is disposed on a side of the metal film facing away from the substrate, and an edge portion of the organic film covers the residual pattern of the metal film.

The embodiments of the present disclosure provide a display substrate, a display panel, and a display device. The display substrate includes: a first base substrate, wherein a plurality of sub-pixel regions arranged in an array are provided on the first base substrate; and a reflective layer provided on one side of the first base substrate, wherein a surface of the reflective layer away from the first base substrate is formed to include a plurality of first bumps and a plurality of second bumps, and the first bump has a size greater than that of the second bump.

An organic light emitting display device includes a substrate, a buffer layer, an active layer, a gate insulation layer, a protective insulating layer, a gate electrode, an insulating interlayer, source and drain electrodes, and a sub-pixel structure. The buffer layer is disposed on the substrate. The active layer is disposed on the buffer layer, and has a source region, a drain region, and a channel region. The gate insulation layer is disposed in the channel region on the active layer. The protective insulating layer is disposed on the buffer layer, the source and drain regions of the active layer, and the gate insulation layer. The gate electrode is disposed in the channel region on the protective insulating layer. The insulating interlayer is disposed on the gate electrode. The source and drain electrodes are disposed on the insulating interlayer.

The present disclosure provides a positive photoresist composition including a major adhesive material and a photosensitizer, wherein the photoresist composition further includes a photoisomerizable compound which would be converted into an ionic structure with an increased degree of molecular polarity after ultraviolet irradiation. The formation of the ionic structure with increased polarity of the molecule reduces the adhesion between the positive photoresist and the organic film layer, facilitates stripping after formation of the via, and improves the product rate of pass. Further, the present disclosure provides a via-forming method using the positive resist composition, a display substrate including the via formed by the via-forming method, and a display device including the display substrate.

A display device, a method for controlling the same, and a display panel are provided, the display device includes: a transparent substrate; a plurality of electroluminescent devices arranged in an array on the substrate, a device with variable transmittance located between the electroluminescent devices and the substrate, the device with variable transmittance is configured so that a transmittance of the device with variable transmittance is switchable between a first transmittance and a second transmittance, and the first transmittance is greater than the second transmittance; and an image acquisition device on a side of the substrate away from the electroluminescent devices, in a case where the transmittance of the device with variable transmittance is switched to the first transmittance, external light irradiating the display device can pass through the device with variable transmittance and be incident on the image acquisition device.

A flexible display panel and a manufacturing method thereof are provided. The flexible display panel includes a display region and a non-display region. A part of the flexible display panel disposed in the non-display region includes a flexible substrate, a multi-barrier layer, and a planarization layer. A cutting track is defined at a peripheral edge of the non-display region, and a groove is defined in the cutting track. An end of the planarization layer extends to at least an interface formed between the multi-barrier layer and the flexible substrate through a sidewall of the groove.

A display panel and method of manufacturing the same are provided. The method of manufacturing the display panel includes the steps of providing a substrate, forming a gate on the substrate, forming a gate insulating layer on the gate and the substrate, forming a polysilicon layer on the gate insulating layer, performing a first gray-scale mask process on the polysilicon layer to form a source region, a drain region and an active region located between the source region and the drain region by the polysilicon layer, forming an interlayer dielectric layer on the gate insulating layer and the polysilicon layer, forming a first electrode layer on the interlayer dielectric layer, performing a second gray-scale mask process on the first electrode layer and the interlayer dielectric layer.

An array substrate having a light-emitting unit region, a bonding region, and a bending region located between the light-emitting unit region and the bonding region. The light-emitting unit region is configured to be provided with light-emitting units. The bonding region is configured to bond a control circuit. The array substrate includes a base substrate located in the light-emitting unit region and the bonding region, a first organic material layer, a metal intermediate layer, and a second organic material layer. The first organic material layer is disposed on a side of the base substrate. The metal intermediate layer is disposed on a side of the first to organic material layer away from the base substrate. The second organic material layer is disposed on a side of the metal intermediate layer away from the base substrate.

A display device comprises first scan line and a second scan line that extend in a first direction, a third scan line extending in a second direction intersecting the first direction, the third scan line intersecting the first scan line and the second scan line, and an insulating layer including a scan contact hole disposed between the first scan line and the third scan line, and a recess pattern disposed between the second scan line and the third scan line. The scan contact hole passes through the insulating layer in. The first scan line and the third scan line are in electrical contact with each other by the scan contact hole. The recess pattern includes a shape recessed from an upper surface to a lower surface of the insulating layer. The second scan line and the third scan line are electrically insulated from each other.

A mother panel for a display panel includes: a mother substrate including a display panel area and a dummy area surrounding the display panel area, the mother substrate having a cutting line defined thereon, wherein the cutting line is configured to be irradiated by a laser along a boundary between the display panel area and the dummy area; and a first heat dissipation pattern on the mother substrate, extending from the display panel area to the dummy area to overlap the cutting line, and including a first rod portion including a plurality of lower rods spaced apart from each other and a first body portion in the dummy area and contacting the first rod portion.