Abstract: A light-emitting layer, a light-emitting device and a light-emitting apparatus are provided. The light-emitting layer includes a thermally activated delayed fluorescence (TADF) material, a phosphorescent material, a multiple resonance fluorescent material and a host material.

Abstract: A display device includes an eyeball tracking inductor, a display panel and a processor, where the processor is electrically connected to the eyeball tracking inductor and the display panel separately; the eyeball tracking inductor is configured to identify user eyeball image information; the processor is configured to determine a gaze region and a split view region of a user viewing the display panel, according to the user eyeball image information, control the gaze region to be displayed at a first resolution, and control the split vision region of the display panel to be displayed at a second resolution, where the first resolution is greater than the second resolution.

Abstract: Provided are an organic compound, a hole injection material, and an application thereof. The organic compound has a structure as shown in Formula I or Formula II, and has a deep LUMO energy level through the mutual synergy of nuclear structures and substituents, and the LUMO energy level is close to the anode work function and the HOMO energy level of a hole transport layer, which can effectively promote the generation of holes. Meanwhile, the organic compound has a suitable molecular weight, low volatility, high thermal stability, and can satisfy the vacuum evaporation requirements for the OLED device preparation. The organic compound is applied to the OLED device, especially suitable as a P-type dopant for a hole injection layer, which can effectively control the charge balance in the device, significantly reduce the drive voltage of the device, prolong the working life, and enable the device to have higher luminous performance.

Abstract: A display device includes an eyeball tracking inductor, a display panel and a processor, where the processor is electrically connected to the eyeball tracking inductor and the display panel separately; the eyeball tracking inductor is configured to identify user eyeball image information; the processor is configured to determine a gaze region and a split view region of a user viewing the display panel, according to the user eyeball image information, control the gaze region to be displayed at a first resolution, and control the split vision region of the display panel to be displayed at a second resolution, where the first resolution is greater than the second resolution.

Abstract: Provided are a display panel and a display device. The display panel includes multiple light-emitting devices. Each of the multiple light-emitting devices includes a red light-emitting device, a green light-emitting device and a blue light-emitting device. The red light-emitting device includes a red light-emitting layer, a peak wavelength of a red spectrum emitted by the red light-emitting device is ?11, and a peak wavelength of an intrinsic emission spectrum of a red light-emitting material in the red light-emitting layer is ?12. The green light-emitting device includes a green light-emitting layer, a peak wavelength of a green spectrum emitted by the green light-emitting device is ?21, and a peak wavelength of an intrinsic emission spectrum of a green light-emitting material in the green light-emitting layer is ?22. ?1=?11??12, ?2=?21??22.

Abstract: Organic light-emitting display panel and device are provided for improving performance of the organic light-emitting device. The organic functional layer comprises an organic light-emitting layer and a first electron transmission layer between the cathode and the organic light-emitting layer. The first electron transmission layer comprises a first doping agent, and the first doping agent contains alkaline earth metal elements or rare earth metal elements. A second electron transmission layer is located between the first electron transmission layer and the organic light-emitting layer, and the second electron transmission layer is undoped with the first doping agent. A lowest unoccupied molecular orbital LUMO1 in the first electron transmission layer and a lowest unoccupied molecular orbital LUMO2 in the second electron transmission layer satisfy: |LUMO1?LUMO2|<0.18 eV.

Abstract: Organic light-emitting display panel and device are provided for improving performance of the organic light-emitting device. The organic functional layer comprises an organic light-emitting layer and a first electron transmission layer between the cathode and the organic light-emitting layer. The first electron transmission layer comprises a first doping agent, and the first doping agent contains alkaline earth metal elements or rare earth metal elements. A second electron transmission layer is located between the first electron transmission layer and the organic light-emitting layer, and the second electron transmission layer is undoped with the first doping agent. A lowest unoccupied molecular orbital LUMO1 in the first electron transmission layer and a lowest unoccupied molecular orbital LUMO2 in the second electron transmission layer satisfy: |LUMO1?LUMO2|<0.18 eV.

Abstract: The present application discloses an organic light-emitting display panel and a manufacturing method thereof, and an organic light-emitting display device. The organic light-emitting display panel comprises a substrate, a first electrode layer, a second electrode layer, an organic light-emitting functional layer formed between the first electrode layer and the second electrode layer and comprising a plurality of first optical adjustment units, a plurality of second optical adjustment units and at least one light emitting layer covering a display area of the organic light-emitting display panel, and a pixel definition layer partitioning the organic light-emitting functional layer to form a pixel array comprising a first color pixel, a second color pixel and a third color pixel in an array arrangement.

Abstract: An organic light-emitting display panel and a display device are provided. The display panel includes a plurality of organic light-emitting components, wherein each of the plurality of organic light-emitting components comprises a first electrode, a light-emitting layer and a second electrode that are arranged by stacking, the first electrode has a reflectivity of R1, and the second electrode has a reflectivity of R2, R1 and R2 satisfy: { I ? ? 1 = F ? ( R ? ? 1 , R ? ? 2 , ? , X ? ? 1 , L ) × I ? ? 0 I ? ? 2 = F ? ? ( R ? ? 1 , R ? ? 2 , ? , X ? ? 2 , L ) × I ? ? 0 ? I ? ? 1 I ? ? 0 - I ? ? 2 I ? ? 0 ? < 0.

Abstract: The present application discloses an organic light-emitting display panel and a manufacturing method thereof, and an organic light-emitting display device. The organic light-emitting display panel comprises a substrate, a first electrode layer, a second electrode layer, an organic light-emitting functional layer formed between the first electrode layer and the second electrode layer and comprising a plurality of first optical adjustment units, a plurality of second optical adjustment units and at least one light emitting layer covering a display area of the organic light-emitting display panel, and a pixel definition layer partitioning the organic light-emitting functional layer to form a pixel array comprising a first color pixel, a second color pixel and a third color pixel in an array arrangement.

Abstract: Microcapsules for inclusion in concrete are disclosed. The microcapsules are adapted to reduce the area of defects in the concrete. The microcapsules may include carbonatogenic bacteria spores in a liquid core, contained in a polymer layer. Also disclosed are concrete compositions including the microcapsules.

Abstract: Microcapsules, for inclusion in concrete, adapted to reduce the area of a defect by at least 45% in said concrete once a quantity of said microcapsules has ruptured, said micro-capsules each comprising: a polymeric shell encapsulating a liquid core, wherein the polymeric shell comprises a substantially impermeable polymer layer and the liquid core comprises carbonatogenic bacterial spores, and optionally bacterial nutrients, dispersed in a liquid medium. Also disclosed is a concrete composition comprising a quantity of such microcapsules, and a method of reducing the area of a defect in concrete.

Abstract: Microcapsules, for inclusion in concrete, adapted to reduce the area of a defect by at least 45% in said concrete once a quantity of said microcapsules has ruptured, said microcapsules each comprising: a polymeric shell encapsulating a liquid core, wherein the polymeric shell comprises a substantially impermeable polymer layer and the liquid core comprises carbonatogenic bacterial spores, and optionally bacterial nutrients, dispersed in a liquid medium. Also disclosed is a concrete composition comprising a quantity of such microcapsules, and a method of reducing the area of a defect in concrete.