The present disclosure discloses a color filter substrate and a method for manufacturing the same, a display panel, and a display device, which relates to the field of display technologies. A black matrix layer in the color filter substrate includes a first film layer and a second film layer. As a material of the first film layer is different from a material of the second film layer, at least one of the first film layer and the second film layer is prepared without using a resin adhesive, and then the resin adhesive remaining in at least one through-hole of the first through-holes of the first film layer and the second through-holes of the second film layer can be reduced, and the display effect of the display device is ensured. In addition, reflectivity of the first film layer is relatively large and optical density of the second film layer is relatively large, which ensures that the color filter substrate according to the embodiments of the present disclosure can meet the design requirement of the black matrix layer.

The present invention provides an optical glass that has a high refractive index property and excels in a light transmittance property in the visible range and in resistance to devitrification. The optical glass contains from 3 to 18 mass % of SiO.sub.2, from 5 to 11.5 mass % of B.sub.2O.sub.3, from 0 to 7 mass % of Al.sub.2O.sub.3, from 0 to 11 mass % of CaO, 1 mass % or less of ZnO, from 7 to 20 mass % of TiO.sub.2, from 3 to 38 mass % of Nb.sub.2O.sub.5, from 27 to 49.8 mass % of La.sub.2O.sub.3, from 6 to 14 mass % of Gd.sub.2O.sub.3, from 0 to 5 mass % of Y.sub.2O.sub.3, less than 6 mass % of Ta.sub.2O.sub.5, and 0.6 mass % or less of WO.sub.3, with a ratio of B.sub.2O.sub.3/SiO.sub.2 being from 1 to 2.

Disclosed in the present invention are a chalcogenide phase change material based all-optical switch and a manufacturing method therefor, relating to the field of optical communications. The all-optical switch comprises: stacked in sequence, a cover layer film, a chalcogenide phase change material film, an isolation layer film, a silicon photonic crystal, and a substrate. The silicon photonic crystal comprises a nano-porous structure such that the silicon photonic crystal has a Fano resonance effect. When the all-optical switch is used, the state of the chalcogenide phase change material film is controlled by means of laser, and the resonance state of the silicon photonic crystal is modulated to implement modulation of signal light transmissivity; the modulation range is within a communication band from 1500 nm to 1600 nm, thereby implementing an optical switch. The all-optical switch of the present invention has the characteristics of high contrast ratio, high rate and low loss.

The present disclosure relates to an electronic device, a display device, and a driving method for the display device, and relates to the field of display technology. The display device includes a display panel, a polarization conversion layer, and a lens layer. The display panel is used to display multiple depth-of-field images in a time-division way during a frame. The polarization conversion layer is arranged on the light exit side of the display panel, and is used to convert light for different depth-of-field images into polarized light of different polarization states. The lens layer is arranged on the side of the polarization conversion layer away from the display panel, and includes a plurality of lens units, each lens unit including a metasurface lens.

The present disclosure discloses a flexible substrate, a method of manufacturing the same, and a display device. The flexible substrate includes a plurality of substrate structure layers that are superimposed, and at least one of the plurality of substrate structure layers includes an organic layer, an inorganic layer and a photonic crystal layer that are superimposed.

The present invention provides a display and a method of manufacturing the same, the display including: a first substrate; a first black matrix disposed on the first substrate; a second substrate disposed on the first black matrix; and a second black matrix disposed between the second substrate and the first black matrix, wherein the second black matrix has a photonic crystal structure.

An imaging system and a method of creating composite images are provided. The imaging system includes one or more lens assemblies coupled to a sensor. When reflected light from an object enters the imaging system, incident light on the metalens filter systems creates filtered light, which is turned into composite images by the corresponding sensors. Each metalens filter system focuses the light into a specific wavelength, creating the metalens images. The metalens images are sent to the processor, wherein the processor combines the metalens images into one or more composite images. The metalens images are combined into a composite image, and the composite image has reduced chromatic aberrations.

A quantum-dot optical film comprises: a binder, wherein a plurality of quantum dots, and a plurality of clay fragments are dispersed in the binder, wherein each of the clay fragments is capable of being water-resistant and oxygen-resistant.

Metamaterial devices for optical absorption, dispersion and directional sensing include optically transparent prisms made of a wide range optically transparent material, the prisms comprising a lens surface that is exposed to a source of electromagnetic radiation, with the other surfaces of the prism adjacent to a sensing device, a reflective surface and/or an optical absorption surface. Absorption devices are configured to trap and absorb the electromagnetic radiation that enters the lens surface. Dispersion devices are configured to scatter the electromagnetic radiation that enters the lens surface and the infrared radiation that radiates from an object and through the prism towards the lens surface. The directional sensing devices are configured to selectively detect electromagnetic radiation entering the device at a target angle.

Provided are an acoustic Luneburg meta lens including a lens structure on the substrate or a lens structure connected to each other by connecting rods, wherein the lens structure includes a plurality of unit structures, the volume of the unit structures decreases from the center of the lens structure toward an edge thereof, and positions of the unit structures are determined by direction components of a polar coordinate system or a spherical coordinate system, and a method for designing the acoustic Luneburg meta lens.