Abstract: A display substrate and a preparation method thereof, and a display device are provided. The display substrate (200/300/400) includes a display region (201/301/401) and an opening region (2011/3011/4011), the display region (200/300/400) surrounds the opening region (2011/3011/4011), a first barrier wall (2012/3012/4012) is between the display region (201/301/401) and the opening region (2011/3011/4011), and the first barrier wall (2012/3012/4012) surrounds the opening region (2011/3011/4011); the first barrier wall (2012/3012/4012) includes a first metal layer structure, and at least one side surface, surrounding the opening region (2011/3011/4011), of the first metal layer structure includes a recess (2012A/3012A/4012A). The display substrate combines the imaging device with the display region of the display substrate and has a better encapsulation effect.

Abstract: A display substrate and a preparation method thereof, and a display device are provided. The display substrate (200/300/400) includes a display region (201/301/401) and an opening region (2011/3011/4011), the display region (200/300/400) surrounds the opening region (2011/3011/4011), a first barrier wall (2012/3012/4012) is between the display region (201/301/401) and the opening region (2011/3011/4011), and the first barrier wall (2012/3012/4012) surrounds the opening region (2011/3011/4011); the first barrier wall (2012/3012/4012) includes a first metal layer structure, and at least one side surface, surrounding the opening region (2011/3011/4011), of the first metal layer structure includes a recess (2012A/3012A/4012A). The display substrate combines the imaging device with the display region of the display substrate and has a better encapsulation effect.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: A display panel, a manufacture method thereof and a display apparatus are provided. The display panel includes a display area, which includes a plurality of pixel units, wherein the pixel units include electroluminescent display devices and pixel drive circuits for driving the electroluminescent display devices to emit light; the electroluminescent display devices include light-emitting devices and virtual light-emitting devices; the light-emitting devices are electrically connected with the pixel drive circuits, while the virtual light-emitting devices are not connected with the corresponding pixel drive circuits; the display area includes a first display area and a second display area; and in the first display area and the second display area, the distribution density of the electroluminescent display devices is the same, and the density of the pixel drive circuits in the second display area is less than that of the pixel drive circuits in the first display area.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: A display substrate and a preparation method thereof, and a display device are provided. The display substrate (200/300/400) includes a display region (201/301/401) and an opening region (2011/3011/4011), the display region (200/300/400) surrounds the opening region (2011/3011/4011), a first barrier wall (2012/3012/4012) is between the display region (201/301/401) and the opening region (2011/3011/4011), and the first barrier wall (2012/3012/4012) surrounds the opening region (2011/3011/4011); the first barrier wall (2012/3012/4012) includes a first metal layer structure, and at least one side surface, surrounding the opening region (2011/3011/4011), of the first metal layer structure includes a recess (2012A/3012A/4012A). The display substrate combines the imaging device with the display region of the display substrate and has a better encapsulation effect.

Abstract: A display substrate and a preparation method thereof, and a display device are provided. The display substrate includes a display region and an opening region, the display region surrounds the opening region, a first barrier wall is between the display region and the opening region, and the first barrier wall surrounds the opening region; the first barrier wall includes a first metal layer structure, and at least one side surface, surrounding the opening region, of the first metal layer structure includes a recess.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: An OLED display panel and a manufacturing method thereof, and an OLED display device are disclosed. The OLED display panel includes a base substrate; a first film layer and a second film layer, sequentially provided on the base substrate, a first via-hole penetrating through the first film layer being provided in the first film layer, a second via-hole penetrating through the second film layer being provided in the second film layer at a position corresponding to the first via-hole, the second via-hole being in communication with the first via-hole, and the first film layer and the second film layer form a first step at a position of the second via-hole; and a connection wire, provided in both the first via-hole and the second via-hole and overlying the first step.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: A display panel, a manufacture method thereof and a display apparatus are provided. The display panel includes a display area, which includes a plurality of pixel units, wherein the pixel units include electroluminescent display devices and pixel drive circuits for driving the electroluminescent display devices to emit light; the electroluminescent display devices include light-emitting devices and virtual light-emitting devices; the light-emitting devices are electrically connected with the pixel drive circuits, while the virtual light-emitting devices are not connected with the corresponding pixel drive circuits; the display area includes a first display area and a second display area; and in the first display area and the second display area, the distribution density of the electroluminescent display devices is the same, and the density of the pixel drive circuits in the second display area is less than that of the pixel drive circuits in the first display area.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.

Abstract: A display panel includes a display substrate, a chip-on-film provided at a bezel away from a display face of the display substrate, an insulation adhesive filled between the display substrate and the chip-on-film, and an integrated circuit chip fixed at a side of the chip-on-film away from the display substrate, the chip-on-film is fixed at the bezel away from the display face of the display substrate by the insulation adhesive, at the bezel there are a plurality of connection holes penetrating through the display substrate and the insulation adhesive, and conductive material filled in the respective connection holes, and signal lines at the bezel at the display face of the display substrate are connected with connection terminals provided at a side of the chip-on-film facing the display substrate via the conductive material.

Abstract: An OLED display panel and a manufacturing method thereof, and an OLED display device are disclosed. The OLED display panel includes a base substrate; a first film layer and a second film layer, sequentially provided on the base substrate, a first via-hole penetrating through the first film layer being provided in the first film layer, a second via-hole penetrating through the second film layer being provided in the second film layer at a position corresponding to the first via-hole, the second via-hole being in communication with the first via-hole, and the first film layer and the second film layer form a first step at a position of the second via-hole; and a connection wire, provided in both the first via-hole and the second via-hole and overlying the first step.

Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes: a display substrate, a COF film disposed on a side of the display substrate; a plurality of signal lines disposed on another side of the display substrate, an insulation layer located between the signal lines and the display substrate, a plurality of connection holes penetrating at least the display substrate, the signal lines and the insulation layer and a conductive material filled in the connection holes. The signal lines are connected to connection terminals disposed on the COF film by the conductive material; the insulation layer has recesses each of which surrounds the respective connection holes.

Abstract: A display panel, a manufacture method thereof and a display apparatus are provided. The display panel includes a display area, which includes a plurality of pixel units, wherein the pixel units include electroluminescent display devices and pixel drive circuits for driving the electroluminescent display devices to emit light; the electroluminescent display devices include light-emitting devices and virtual light-emitting devices; the light-emitting devices are electrically connected with the pixel drive circuits, while the virtual light-emitting devices are not connected with the corresponding pixel drive circuits; the display area includes a first display area and a second display area; and in the first display area and the second display area, the distribution density of the electroluminescent display devices is the same, and the density of the pixel drive circuits in the second display area is less than that of the pixel drive circuits in the first display area.

Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes: a display substrate, a COF film disposed on a side of the display substrate; a plurality of signal lines disposed on another side of the display substrate, an insulation layer located between the signal lines and the display substrate, a plurality of connection holes penetrating at least the display substrate, the signal lines and the insulation layer and a conductive material filled in the connection holes. The signal lines are connected to connection terminals disposed on the COF film by the conductive material; the insulation layer has recesses each of which surrounds the respective connection holes.

Abstract: A display panel includes a display substrate, a chip-on-film provided at a bezel away from a display face of the display substrate, an insulation adhesive filled between the display substrate and the chip-on-film, and an integrated circuit chip fixed at a side of the chip-on-film away from the display substrate, the chip-on-film is fixed at the bezel away from the display face of the display substrate by the insulation adhesive, at the bezel there are a plurality of connection holes penetrating through the display substrate and the insulation adhesive, and conductive material filled in the respective connection holes, and signal lines at the bezel at the display face of the display substrate are connected with connection terminals provided at a side of the chip-on-film facing the display substrate via the conductive material.

Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.