A light filter (100) includes at least one layer of binder matrix (110) and a multitude of transparent crystals (120). The multitude of transparent crystals (120) are irregularly and laterally dispersed in the at least one layer of binder matrix (110), such that light passing through the light filter (100) is separated into different wavelengths and polarized into different orientations.

A black light-shielding photosensitive resin composition, a black matrix, a black light-shielding film, a frame, and a filling material for a splicing area are provided. The black light-shielding photosensitive resin composition includes a resin (A), a pigment (B), a monomer (C), an initiator (D), and a solvent (E). The resin (A) includes an epoxy resin (A-1) and a resin (A-2) having an ethylenic unsaturated functional group. The pigment (B) includes black particles (B-1) and hollow particles (B-2).

The present invention relates to the use of flake-form effect pigments for increasing the infrared reflection of a dark or black layer composite, consisting of a substrate and a coating on the substrate, and to a dark or black layer composite of this type which has increased infrared reflection, in particular in the near infrared (NIR), compared with conventional dark or black layer composites which comprise only carbon-containing black pigments.

A method of manufacturing a display apparatus includes: forming a display element layer above a lower substrate, where the display element layer includes first to third display elements; forming an encapsulation layer on the display element layer; forming first partition walls on the encapsulation layer to define first to third color regions, where the first to third color regions overlap the first to third display elements, respectively, in a view in a direction perpendicular to the lower substrate; forming second partition walls on the first partition walls; forming a quantum dot layer, which includes forming a second color quantum dot layer in the second color region and forming a third color quantum dot layer in the third color region; and removing the second partition walls.

The present inventive concept relates to a hybrid wavelength converter including both a metal halide perovskite nanocrystal particles and non-perovskite-based quantum dots or non-perovskite-based phosphors converting a wavelength of light generated from an excitation light source to specific wavelengths, and a light-emitting device including the same. By including metal halide perovskite nanocrystal particles and non-perovskite quantum dots or non-perovskite phosphors in the dispersion medium, the hybrid wavelength converter according to the present inventive concept enables to make simultaneous wavelength conversion to red and green light, and to be optically stable and improved color purity and luminescence performance without changing the emission wavelength range even with a lower cadmium content than the conventional quantum dot wavelength converter.

Provided are a method of preparing quantum dots, a quantum dot prepared by the method, an optical member including the quantum dot, and an electronic apparatus including the quantum dot. The method includes: preparing a mixture of a semiconductor compound including indium (In), a first precursor including a first metal element, a second precursor including a second metal element, a third precursor including a third element, and a fourth precursor including a fourth element; and heating the mixture, wherein the first precursor and the second precursor are different from each other, and the third precursor and the fourth precursor are different from each other.

A protective film and a display apparatus including the same are disclosed. The display apparatus in the embodiments may include a protective film that is disposed on a display panel and includes a substrate and a light shielding layer being formed in the edge portion of the substrate, which corresponds to a non-display area of the display panel. The light shielding layer may include a first layer and a second layer on the first layer. The first layer may include at least two or more of first patterns that are spaced from each other and a plurality of second patterns that are disposed between at least two or more of the first patterns.

The present invention provides a manufacturing method of a color film substrate and the color film substrate. The manufacturing method includes providing a substrate; forming a first photoresist layer on a first sub-pixel region; forming a quantum dot layer on the substrate, wherein light emission colors of at least two types of quantum dots are respectively different from a light emission color of the first photoresist layer; forming a second photoresist layer and a third photoresist layer on the quantum dot layer in order; and quenching the quantum dot layer to invalidate unshielded quantum dots of the quantum dot layer.

Disclosed are optical elements that contains two or more near infrared absorbers and methods of producing the same. Two near infrared absorbers with different near infrared wavelengths absorption ranges and residual colors are mixed with a precursor of an optical substrate. The resulting mixture is subsequently processed to produce optical elements that have a broad near infrared wavelength absorption range and a neutral residual color.

A display device includes a black matrix that is substantially entirely exposed by openings in a color filter in an active area, making it possible to suppress occurrence of diffuse reflection in the color filter.