A color filter, a method for manufacturing a color filter, a color filter substrate, and a display device are disclosed. The color filter includes a first quantum dot light emitting layer and a first reflective layer. The first quantum dot light emitting layer has a light incident surface; and the first reflective layer is on a side of the first quantum dot light emitting layer away from the light incident surface, the first quantum dot light emitting layer includes a plurality of first quantum dots, the first quantum dots are configured to be stimulated by light of a first wavelength from the light incident surface to emit light of a second wavelength, and the first reflective layer is configured to transmit the light of the second wavelength and reflect the light of the first wavelength.

The present invention relates to a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.

Provided in an illumination device including a display panel including a first surface configured to display an image, a second surface opposite to the first surface, a plurality of display pixels disposed between the first surface and the second surface, and a transmission window configured to transmit light incident on the second surface through the first surface, a light source disposed at the second surface of the display panel and configured to emit light to an object toward the display panel, and a light deliverer disposed between the light source and the display panel, the light deliverer configured to deliver the light emitted from the light source to the object as flood illumination through the transmission window.

The present invention provides a quantum dot display panel, a quantum dot display device, and a preparation method thereof. The quantum dot display panel includes an array substrate, a color film substrate, and a liquid crystal disposed between the array substrate and the color film substrate, wherein the color film substrate includes a cover plate, a light-cutoff layer, a quantum dot pixel layer, a blocking layer, a reflection layer, a coating layer, a built-in polarizing layer, an isolation unit, and a polyimide (PI) layer.

A semiconductor device comprising a wafer with a preferably single-piece semiconductor substrate, in particular silicon substrate, and at least one integrated electronic component extending in and/or on the semiconductor substrate, the wafer having a front-end-of-line and a back-end-of-line lying there above, the front-end-of-line comprising the integrated electronic component or at least one of the integrated electronic components, and a photonic platform fabricated on the side of the wafer facing away from the front-end-of-line, which photonic platform comprises at least one waveguide and at least one electro-optical device, in particular at least one photodetector and/or at least one electro-optical modulator, wherein the electro-optical device or at least one of the electro-optical devices of the photonic platform is connected to the integrated electronic component or at least one of the integrated electronic components of the wafer.

An electrochromic device comprising a substrate, a set of electrodes disposed on or within the substrate, and a layer comprising ε-WO3 disposed in electrical communication with the set of electrodes, wherein the layer of ε-WO3 exhibits polarization switching are described. Methods of making and using the electrochromic devices are also described. The electrochromic devices are used for detecting acetone in a fluid. The observed change in color of the ε-WO3 layer can be correlated with a subject's medical condition, such as diabetes.

A color conversion film for a backlight unit that includes an array of light emitting diodes. The color conversion film includes a substantially planar base portion, and a plurality of three-dimensional structures extending from the substantially planar base portion. Each of the three-dimensional structures has at least one sloped surface with a base angle of about 55°-75° relative to the substantially planar base portion. The color conversion film includes a material having a refractive index of about 1.5-1.7.

A display apparatus includes a liquid crystal panel; light sources configured to emit blue light; a reflective sheet including a first edge portion and a second edge portion, wherein a plurality of holes are disposed on the reflective sheet, the plurality of holes includes a first hole, a second hole, and a third hole, the first hole is disposed at a first distance from an edge of the first edge portion, the second hole is disposed at a second distance from the edge of the first edge portion, and the third hole is disposed at the first distance from the edge of the first edge portion, wherein the second distance is greater than the first distance; and pluralities of light conversion dots disposed around the first, second, and third holes, respectively, wherein the third hole is disposed on an overlap portion of the first and second edge portions.

A display backlight, comprises: an excitation source, LED (146), for generating blue excitation light (148) with a peak emission wavelength in a wavelength range 445 nm to 465 nm; and a photoluminescence wavelength conversion layer (152). The photoluminescence wavelength conversion layer (152) comprises a mixture of a green-emitting photoluminescence material with a peak emission in a wavelength range 530 nm to 545 nm, a red-emitting photoluminescence material with a peak emission in a wavelength range 600 nm to 650 nm and particles of light scattering material.

A coating composition, a method for manufacturing a substrate using the same, and an optical device are provided. The method for manufacturing the substrate provides the substrate having excellent performance, as the substrate has fixed spacers on its surface by using a single layer in which nanoparticles and spacers are dispersed in an alignment film to reduce processes and cost. The optical device may be manufactured by such method.