The present invention relates inter alia to a color display comprising nanoparticles and color filters.

A method of manufacturing a color conversion film includes: providing a substrate having a first surface and a second surface; forming a plurality of first indentations on the first surface and forming a plurality of second indentations on the second surface; forming a plurality of first quantum dot blocks in the first indentations; and forming a plurality of second quantum dot blocks in the second indentations.

An array substrate includes a glass substrate GS, an alignment mark 29, and first traces 19. The glass substrate GS has a corner portion 30 having an outline defined by a first edge portion 11b1 and a second edge portion 11b2 crossing the first edge portion 11b1. The alignment mark 29 is disposed at the corner portion 30 and used as the positioning index in mounting a driver 21 and a flexible printed circuit board 13. The alignment mark 29 at least includes first and second side portions 29a, 29b parallel to the first and second edge portions 11b1, 11b2, respectively. One end of the second side portion 29b is continuous to one end of the first side portion 29a. The alignment mark 29 has an outline that is on a same plane with a reference line BL connecting other ends of the first side portion 29a and the second side portion 29b linearly. The first traces 19 include inclined portions 31 that are inclined with respect to the first and second side portions 29a, 29b along the reference line BL.

An optical member includes: a substrate; and a dot formed on a surface of the substrate. The dot has wavelength selective reflecting properties, and a cholesteric structure which has a stripe pattern including bright and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope. A surface shape of the dot opposite to the substrate in a cross-section of the dot in a thickness direction has at least one inflection point. In the cross-section, an angle between a normal line perpendicular to a line, formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot, is in a range of 70° to 90°. A proportion of a retroreflective area of the optical member is high when observed after light irradiation from an oblique direction to a normal direction perpendicular to the optical member.

Provided is a near infrared absorbing glass excellent in each of weather resistance, resistance to denitrification, and optical properties even if not containing fluorine. A near infrared absorbing glass containing, in % by mass, 25 to 60% P.sub.2O.sub.5, 2 to 19% Al.sub.2O.sub.3, 10 to 45% RO (where R is at least one selected from Mg, Ca, Sr, and Ba), 0 to 13% ZnO, 12% to 20% (exclusive of 12% and 20%) K.sub.2O, 0 to 12% Na.sub.2O, and 0.3 to 20% CuO.

A transparent polyester film has low visible light transmittance of 5-50% by JIS K7705 testing standard and a high infrared-blocking rate of at least 90% by JIS R3106 testing standard, which is extruded from a kind of polyester resins obtained from 5-40 wt % of nanoparticle-based thermal insulation slurry and/or 0.005-0.1 wt % of nanoparticle-based black pigment slurry by weight of and to react with the polymerization materials to completely perform an esterification and a polycondensation, wherein the thermal insulation nanoparticle has a chemical formula of Cs.sub.XN.sub.YWO.sub.3-ZCl.sub.C with an average particle size of 10-90 nm and the nanoparticle-based black contains carbon black particles having a particle size of 20-80 nm.

An optical filter and manufacturing method therefor, a display substrate, and a display apparatus. The optical filter includes: a base substrate; an ordered porous film disposed on the base substrate, wherein the ordered porous film is formed with channels each of which having an extension direction at least at an angle to the base substrate and having an opening at a surface of the ordered porous film; and a plurality of quantum dots respectively disposed in at least part of the channels. The optical filter, the display substrate having the optical filter and the display apparatus can significantly improve the display colour gamut of the display apparatus.

A display device includes a light-emitting element layer and a light control layer. The light control layer may include a plurality of separated partition wall parts including a partition wall part, a color control part between the partition wall parts, the color control part including quantum dots and a first scattering particle, and a coating layer covering a side of the partition wall part adjacent to the color control part. The coating layer includes at least one selected from a substitution dispersant and a substitution scattering particle, and each of the substitution dispersant and the substitution scattering particle may include at least one substituent selected from an amine group and a carboxyl group. The amine groups and the carboxyl groups included in the coating layer may be different in number from each other.

An imaging unit 20 has a configuration in which an identical polarization pixel block made up of a plurality of pixels with an identical polarization direction is provided for each of a plurality of polarization directions and pixels of respective predetermined colors are provided in the identical polarization pixel block. A correction processing unit 31 performs correction processing such as white balance correction on a polarized image generated by the imaging unit 20. A polarized image processing unit 32 separates or extracts a reflection component using the polarized image after the correction processing. By using a polarized image of the separated or extracted reflection component, for example, it is possible to generate normal line information with high accuracy.

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.