A display device includes an organic emission layer in which a first pixel area, a second pixel area and a third pixel area are defined, a color filter layer disposed on the organic emission layer and including first to third color filters overlapping the first to third pixel areas, respectively, where the first to third color filters emit first light to third light, respectively, a first optical filter layer disposed on the color filter layer and which transmits at least one of the first light and the second light and reflects or absorbs the third light, and a light-focusing layer disposed between the color filter layer and the organic emission layer and including first to third light-focusing parts overlapping the first to third pixel areas, respectively, where at least one of the first to third color filters includes quantum dots.

Methods of making luminescent perovskite-polymer composites are provided and structures using the same. Perovskite-polymer composites made by the method described herein are provided. The perovskite-polymer composite is useful in many applications including downconverters for backlight units (BLU) of liquid crystal displays (LCDs), as well as for and could be used for light emitting devices, lasers or as active absorber or passive luminescent concentrators for solar photovoltaic applications.

A composition including a quantum dot, a dispersing agent for dispersing the quantum dot, a polymerizable monomer including a carbon-carbon double bond, an initiator, a hollow metal oxide particulate, and a solvent, and a quantum dot-polymer composite manufactured from the composition.

A light-emitting device includes: a first light-emitting element including a first light-emitting layer configured to emit light having a light-emitting central wavelength of a first wavelength, and a first electron transport layer layered with the first light-emitting layer; and a second light-emitting element including a second light-emitting layer configured to emit light having a light-emitting central wavelength of a second wavelength shorter than the first wavelength, and the second electron transport layer layered with the second light-emitting layer. Each of the first electron transport layer and the second electron transport layer includes a plurality of nanoparticles, and the second electron transport layer includes the plurality of nanoparticles having a smaller average particle size than the plurality of nanoparticles included in the first electron transport layer, and has a smaller thickness than the first electron transport layer.

The present disclosure relates to an anti-reflective film comprising: a hard coating layer; and a low refractive index layer, wherein a particle-mixed layer containing both hollow inorganic nanoparticles and solid inorganic nanoparticles and having a thickness of 1.5 nm to 22 nm exists in the low refractive index layer, and wherein the anti-reflective film has a ratio of the reflectance at a wavelength of 400 nm to the reflectance at a wavelength of 550 nm of 1.3 to 2.7, and a polarizing plate, a display device, and an organic light emitting diode display device comprising the anti-reflective film.

Embodiments in accordance with the present invention encompass compositions encompassing a latent catalyst and a thermal or photoactivator along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is heated to a temperature from 50° C. to 100° C. or higher to form a substantially transparent film. Alternatively the compositions of this invention also undergo polymerization when subjected to suitable radiation. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. The compositions of this invention further comprises inorganic nanoparticles which form transparent films and further increases the refractive indices of the compositions. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

The present disclosure provides a display substrate, a method for manufacturing the same, and a display device. The display substrate includes: a base substrate having pixel regions arranged in an array, each pixel region including a first sub-pixel region and a second sub-pixel region; a light emitting layer and a color conversion layer sequentially stacked on the base substrate; the color conversion layer includes a first color conversion block in at least the first sub-pixel region of at least one pixel region, each of the at least one first color conversion block includes at least two color conversion materials for converting a light component of a color into a light of a target display color, colors of the light components converted by the color conversion materials are different, the target display color is different from the color of the light emitted from the light emitting layer.

Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.

A display apparatus includes a first substrate; a first light-emitting device, a second light-emitting device, and a third light-emitting device disposed over the first substrate, each of the first to third light-emitting devices including a first light emission layer; a second substrate disposed over the first substrate with the first to third light-emitting devices therebetween, the second substrate including a first through hole, a second through hole, and a third through hole overlapping the first to third light-emitting devices; a reflective layer on an inner surface of each of the first to third through holes; a first color filter layer in the first through hole; a second color filter layer and a second quantum dot layer in the second through hole; and a third color filter layer and a third quantum dot layer in the third through hole.