A lighting device includes a light source configure to irradiate excitation light and a vehicle glass configured to emit visible light through incident radiation of the excitation light, in which the vehicle glass is configured to emit the visible light synchronously in an area of 30% or more by irradiation with the excitation light.

Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.

The present disclosure provides a quantum dot enhanced film comprising a substrate layer and a functional layer disposed on at least one side in a thickness direction of the substrate layer, wherein the functional layer includes a confining layer and a quantum dot material layer alternately stacked in a thickness direction of the quantum dot enhanced film, the confining layer comprises a hydrotalcite material and/or a hydrotalcite-like material. The present disclosure also provides a backlight source, a preparation method of a quantum dot enhanced film and a display device. When the quantum dot enhanced film is used in a backlight source and/or a display device, a phenomenon of fluorescence quenching is less likely to occur.

An object of the present invention is to provide a curable composition comprising a fluorescent particle containing a perovskite compound and a photopolymerizable compound, with a good dispersibility of the above semiconductor particle to the above photopolymerizable compound; a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film. Provided are a curable composition comprising a fluorescent particle (A) containing a perovskite compound, a photopolymerizable compound (B), and a dispersing agent (C), wherein the dispersing agent (C) includes at least one kind of compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, sulfonic acid compounds, primary to tertiary amine compounds, quaternary ammonium compounds, and thiol compounds; a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film.

The present application relates to a glass-like film. The present application can provide a glass-like film capable of solving the disadvantages of the glass material, while having at least one or more advantages of the glass material. Such a glass-like film of the present application can be easily formed through a simple low temperature process without using expensive equipment.

An organic glass includes an acrylic plate, a methyl methacrylate layer, and a fluorescent bubble layer that are sequentially stacked; and the fluorescent bubble layer is prepared from fluorescent polymethyl methacrylate beads, a first methyl methacrylate prepolymer and a second methyl methacrylate prepolymer. The fluorescent polymethyl methacrylate beads added into the raw material of the organic glass have an expandable characteristic, and can generate bubbles according to a design pattern to achieve the purpose of controllable bubbles, and the added fluorescent polymethyl methacrylate beads show fluorescent green under ultraviolet irradiation, giving bubbles a fluorescent color, and enabling the organic glass to have extremely artistic and decorative effects.

A glazing applicable to multiple illumination products comprises a first glass substrate having first and second surfaces, a second glass substrate having third and fourth surfaces, a polymer interlayer laminated between the first and second substrates, and a coating including a first luminescent material and being applied on one of the third and fourth surfaces of the second glass substrate, for emitting light to both of the interior and exterior.

A multi-layer coextruded film structure, particularly a multi-layer coextruded barrier film structure, for producing a recycle-ready packaging material, the multilayer coextruded film structure comprising at least two or more polymeric layers; wherein at least one of the polymeric layers comprises at least one fluorescent tracer that has an absorbance wavelength and an emission wavelength when exposed to ultra violet light; that provides a detectable fluorescence when exposed to ultra violet light at an absorbance wavelength in the range of from 100 nm to 400 nm; that provides an emission wavelength in the visible blue range of from 380 nm to 700 nm when exposed to ultra violet light, and that provides visible identification of recycle-ready packaging material made from the multi-layer film structure; and wherein the visible identification, in turn, provides the capability of sorting the recycle-ready packaging material from non-recycle-ready packaging materials; a process for producing the above multilayer film structure; and a multilayer recycle-ready barrier packaging article produced from the above multilayer film structure.

Fluorescence-based techniques are the cornerstone of modern biomedical optics with applications ranging from bioimaging at various scales (organelle to organism) to detection and quantification of a wide variety of biological species of interest. However, feeble fluorescence signal remains a persistent challenge in meeting the ever-increasing demand to image, detect and quantify biological species of low abundance. Disclosed herein are simple and universal methods based on a flexible and conformal elastomeric film adsorbed with plasmonic nanostructures, referred to as “plasmonic skin” or “plasmonic patch”, that provide large and uniform enhancement of fluorescence on a variety of surfaces, through an “add-on-top” process. The novel fluorescence enhancement approach presented here represents a disease-, biomarker-, and application-agnostic ubiquitously-applicable fundamental and enabling technology to improve the sensitivity of existing analytical methodologies in an easy-to-handle and cost-effective manner, without changing and/or minimally altering the original procedures of the existing techniques.

A secure multi-layered structure (14), for example, for a secure document, the secure multi-layered structure comprising a first layer (20) having a first aperture (25) opened in the first layer, a second layer (30) having a second aperture (35) opened in the second layer, and a third layer (40) having a third aperture (45) opened in the third layer, wherein each layer at least partially overlaps with the layer adjacent to it, at least a portion of the third layer being visible through the first aperture.