Abstract: A display substrate is provided. The display substrate includes an alignment film and a plurality of rows of pixel units arranged in a first direction. Each row of pixel units includes a plurality of pixel units arranged in a second direction. The second direction intersects with the first direction, and the angle between a rubbing direction of the alignment film and the first direction is an acute angle. By setting the angle between the rubbing direction of the alignment film of the display substrate and the first direction to be an acute angle, the contrast of a specific orientation of the display device can be changed.

Abstract: The present disclosure provides a light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus. The light-emitting layer has a host material containing a first photocrosslinker group. A guest material containing a second photocrosslinker group is prepared. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and UV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.

Abstract: A display device and method, a head-up display system, a means of transportation and a storage medium are disclosed. The display device includes a display module, an image analysis device and a controller. The display module includes a plurality of display subareas, and each of the display subareas includes at least one display pixel; the image analysis device is configured to perform an analysis of an input image received by the image analysis device, so as to obtain an information zone of the input image and a non-information zone outside the information zone; and the controller is configured to render brightness of a display pixel, with a lowest brightness in a first region, in the first region of the display module higher than brightness of any display pixel in at least part of a second region of the display module, when the display module displays the input image.

Abstract: The present disclosure provides a light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus. The light-emitting layer has a host material containing a first photocrosslinker group. A guest material containing a second photocrosslinker group is prepared. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and LV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.

Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device, where the display panel includes a first substrate, a second substrate, a first spacer, and a second spacer. The first substrate and the second substrate are disposed opposite to each other. The first spacer is disposed on a side of the first substrate adjacent to the second substrate. The second spacer is disposed on a side of the second substrate adjacent to the first substrate. The first spacer and the second spacer are butted with each other through one of two embeddings in the other.

Abstract: A display device and method, a head-up display system, a means of transportation and a storage medium are disclosed. The display device includes a display module, an image analysis device and a controller. The display module includes a plurality of display subareas, and each of the display subareas includes at least one display pixel; the image analysis device is configured to perform an analysis of an input image received by the image analysis device, so as to obtain an information zone of the input image and a non-information zone outside the information zone; and the controller is configured to render brightness of a display pixel, with a lowest brightness in a first region, in the first region of the display module higher than brightness of any display pixel in at least part of a second region of the display module, when the display module displays the input image.

Abstract: A method for preparing a light-emitting layer, the light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus are provided. The light-emitting layer is prepared by preparing a host material containing a first photocrosslinker group and a guest material containing a second photocrosslinker group. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and UV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.

Abstract: A display substrate is provided. The display substrate includes an alignment film and a plurality of rows of pixel units arranged in a first direction. Each row of pixel units includes a plurality of pixel units arranged in a second direction. The second direction intersects with the first direction, and the angle between a rubbing direction of the alignment film and the first direction is an acute angle. By setting the angle between the rubbing direction of the alignment film of the display substrate and the first direction to be an acute angle, the contrast of a specific orientation of the display device can be changed.

Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device, where the display panel includes a first substrate, a second substrate, a first spacer, and a second spacer. The first substrate and the second substrate are disposed opposite to each other. The first spacer is disposed on a side of the first substrate adjacent to the second substrate. The second spacer is disposed on a side of the second substrate adjacent to the first substrate. The first spacer and the second spacer are butted with each other through one of two embeddings in the other.

Abstract: The present disclosure provides a method and a device for measuring mura levels of liquid crystal display devices. The method includes steps of: acquiring correspondence between standard brightness data differences and standard mura levels; acquiring a measurement brightness data difference of a test image displayed by a to-be-tested liquid crystal display device before and after the measurement; and acquiring a mura level corresponding to the measurement brightness data difference in accordance with the correspondence.

Abstract: A method for preparing a light-emitting layer, the light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus are provided. The light-emitting layer is prepared by preparing a host material containing a first photocrosslinker group and a guest material containing a second photocrosslinker group. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and UV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.

Abstract: The invention provides an OLED display panel and the production process thereof, which relates to the technical field of display, may improve the surface flatness and the water-oxygen permeation resistance of the flexible base substrate, improve the light output ratio of the display panel, and may control the center wavelength of the electroluminescence spectrum.

Abstract: The present disclosure provides a method and a device for measuring mura levels of liquid crystal display devices. The method includes steps of: acquiring correspondence between standard brightness data differences and standard mura levels; acquiring a measurement brightness data difference of a test image displayed by a to-be-tested liquid crystal display device before and after the measurement; and acquiring a mura level corresponding to the measurement brightness data difference in accordance with the correspondence.

Abstract: The present invention discloses an organic light-emitting diode (OLED) and an electronic device, wherein the OLED includes a first carrier transport layer and a second carrier transport layer that are set opposite to each other, and a light-emitting layer; the light-emitting layer includes a first light-emitting sub-layer with a hollow structure, and a second light-emitting sub-layer which includes a body part and a projecting part, wherein the projecting part projects from the body part and is accommodated in the hollow structure; wherein a surface of the first light-emitting sub-layer and a surface of the projecting part form the first surface of the light-emitting layer, and a surface of the body part forms the second surface of the light-emitting layer. By the present invention, the working voltage is lowered, the power consumption is reduced, and in addition, the manufacturing process is simplified due to the reduction of the number of layers.

Abstract: A printing plate, a scattering layer and a method for fabricating the same, and a display apparatus are provided. The printing plate is formed with a plurality of protrusion structures thereon, and the protrusion structures have a maximum width of 1 nm-1000 nm. The scattering layer is obtained by printing using the printing plate, and has groove structures corresponding to the protrusion structures on the printing plate thereon. The scattering structure is used on an organic light emitting display device, which can increase the light extraction efficiency and the external quantum efficiency and improve the display quality.

Abstract: The present invention discloses an organic light-emitting diode (OLED) and an electronic device, wherein the OLED includes a first carrier transport layer and a second carrier transport layer that are set opposite to each other, and a light-emitting layer; the light-emitting layer includes a first light-emitting sub-layer with a hollow structure, and a second light-emitting sub-layer which includes a body part and a projecting part, wherein the projecting part projects from the body part and is accommodated in the hollow structure; wherein a surface of the first light-emitting sub-layer and a surface of the projecting part form the first surface of the light-emitting layer, and a surface of the body part forms the second surface of the light-emitting layer. By the present invention, the working voltage is lowered, the power consumption is reduced, and in addition, the manufacturing process is simplified due to the reduction of the number of layers.

Abstract: A printing plate, a scattering layer and a method for fabricating the same, and a display apparatus are provided. The printing plate is formed with a plurality of protrusion structures thereon, and the protrusion structures have a maximum width of 1 nm-1000 nm. The scattering layer is obtained by printing using the printing plate, and has groove structures corresponding to the protrusion structures on the printing plate thereon. The scattering structure is used on an organic light emitting display device, which can increase the light extraction efficiency and the external quantum efficiency and improve the display quality.

Abstract: A flexible substrate, a manufacturing method for the flexible substrate and an OLED display device including the flexible substrate are provided. The flexible substrate includes a flexible base on which a mesh depression layer is provided, in which a mesh current sinking layer is embedded. The mesh current sinking layer is configured to enhance electrical conductivity of the flexible substrate. With the mesh depression layer, the mesh current sinking layer may be embedded in the flexible substrate, which effectively enhances the electrical conductivity of the flexible substrate.

Abstract: The invention provides an OLED display panel and the production process thereof, which relates to the technical field of display, may improve the surface flatness and the water-oxygen permeation resistance of the flexible base substrate, improve the light output ratio of the display panel, and may control the center wavelength of the electroluminescence spectrum.

Abstract: An electroluminescent device, comprising: a substrate; a first electrode and a second electrode disposed on the substrate; and an electroluminescent layer sandwiched between the first electrode and the second electrode, wherein at least one of the first and second electrodes is configured to have a grating structure; and wherein the grating structure has a grating period within a range of 0.9˜1.1 times of a wavelength of a light wave generated in the electroluminescent layer.