Abstract: The present invention relates to a coumarin (keto) oxime ester compound of formula (I), wherein n and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification. The compound has strong ultraviolet absorption in the range of 300 to 450 nm. After absorbing light energy, it can quickly transfer energy and continuously initiate polymerization. It has obvious advantages in terms of photosensitivity and pattern integrity, and is very suitable for radiation curing by UV-LED light source. In addition, the compound of formula (I) also has good thermal stability. The present invention also relates to a method for preparing the compound of formula (I) and use of the compound. The compound is suitable as a photoinitiator in a UV-LED light curing system and is suitable for the radiation wavelength of UV-LED light curing.

Abstract: The present invention relates to a coumarin (keto) oxime ester compound of formula (I), wherein n and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification. The compound has strong ultraviolet absorption in the range of 300 to 450 nm. After absorbing light energy, it can quickly transfer energy and continuously initiate polymerization. It has obvious advantages in terms of photosensitivity and pattern integrity, and is very suitable for radiation curing by UV-LED light source. In addition, the compound of formula (I) also has good thermal stability. The present invention also relates to a method for preparing the compound of formula (I) and use of the compound. The compound is suitable as a photoinitiator in a UV-LED light curing system and is suitable for the radiation wavelength of UV-LED light curing.

Abstract: The present invention provides a dye compound and a method for preparing the same, a colorant, a photosensitive resin composition and an optical filter. As the dye compound of the present invention has an epoxy group, the dye compound can effectively prevent surface shrinkage of an optical filter while improving transmittance thereof.

Abstract: A polymeric dye compound, photosensitive resin composition comprising the same and use thereof are disclosed. The polymeric dye compound comprises three kinds of monomeric units. The photosensitive resin composition comprises a colorant, an alkali-soluble resin, a polymerizable monomer and a polymerization initiator, wherein the colorant comprises the polymeric dye compound and a pigment. The polymeric dye compound is prepared by copolymerization of styrenic monomer and other monomers, such that a colored layer having excellent heat resistance, light resistance and high transmittance can be formed.

Abstract: The invention relates to use of quantum dots in a pigment dispersion liquid. The invention also relates to a pigment dispersion liquid, which comprises a pigment, quantum dots, a dispersion agent, a dispersing resin and a solvent. The invention also relates to the process for producing the pigment dispersion liquid. The use of quantum dots provided by the invention broadens the application field of the quantum dots and develops the use thereof in the field of liquid crystal display. The pigment dispersion liquid having quantum dots added therein provided by the invention has a significantly improved stability of dispersion. Furthermore, the quantum dots and the organic pigment can interact with each other by adjusting the composition, the size or the like of the quantum dots, so that the properties of the pigment are improved and the contrast thereof is increased.

Abstract: The invention provides a modified quantum dot, a method for preparing the same, a coloring agent, a photosensitive resin composition, a color filter and a display device. Said modified quantum dot can improve the overall dispersibility and optical properties of the coloring agent, and further increase the contrast ratio of the display device. The modified quantum dot of the present invention has the following structure: the modified quantum dot comprises a core composed of quantum dots and a shell composed of amines containing a C6-C22 alkyl group, wherein, some or all amino groups in the amine form salts with an acid dye, and Y? is an anion in the acid dye, R1, R2, R3, R4, R5 and R6 are independently H or a C1-C6 alkyl group.

Abstract: Embodiments of the present invention provide a preparation method of a patterned film, a display substrate and a display device, avoiding falling off of a film layer occurring in the process of peeling off a photoresist layer. The preparation method of the patterned film comprises: forming a preset film layer on a surface of a preset substrate; covering the preset film layer with an isolation layer; forming a photoresist layer on a surface of the isolation layer and forming a pattern of the isolation layer with a patterning process; then removing the preset film layer which is not covered by the pattern of the isolation layer, peeling off the photoresist layer and removing the remaining, isolation layer to form a pattern of the preset film layer.

Abstract: Embodiments of the present invention provide a preparation method of a patterned film, a display substrate and a display device, avoiding falling off of a film layer occurring in the process of peeling off a photoresist layer. The preparation method of the patterned film comprises: forming a preset film layer on a surface of a preset substrate; covering the preset film layer with an isolation layer; forming a photoresist layer on a surface of the isolation layer and forming a pattern of the isolation layer with a patterning process; then removing the preset film layer which is not covered by the pattern of the isolation layer, peeling off the photoresist layer and removing the remaining, isolation layer to form a pattern of the preset film layer.

Abstract: A polymeric dye compound, photosensitive resin composition comprising the same and use thereof are disclosed. The polymeric dye compound comprises three kinds of monomeric units. The photosensitive resin composition comprises a colorant, an alkali-soluble resin, a polymerizable monomer and a polymerization initiator, wherein the colorant comprises the polymeric dye compound and a pigment. The polymeric dye compound is prepared by copolymerization of styrenic monomer and other monomers, such that a colored layer having excellent heat resistance, light resistance and high transmittance can be formed.

Abstract: The invention relates to use of quantum dots in a pigment dispersion liquid. The invention also relates to a pigment dispersion liquid, which comprises a pigment, quantum dots, a dispersion agent, a dispersing resin and a solvent. The invention also relates to the process for producing the pigment dispersion liquid. The use of quantum dots provided by the invention broadens the application field of the quantum dots and develops the use thereof in the field of liquid crystal display. The pigment dispersion liquid having quantum dots added therein provided by the invention has a significantly improved stability of dispersion. Furthermore, the quantum dots and the organic pigment can interact with each other by adjusting the composition, the size or the like of the quantum dots, so that the properties of the pigment are improved and the contrast thereof is increased.