The present invention aims to provide a luminescent display system capable of safely and easily displaying information at a predetermined luminance over a wide area, and a head-up display including the luminescent display system. Provided is a luminescent display system including: a luminescent resin film containing a thermoplastic resin and a luminescent material; and two or more light sources each configured to emit a light beam of excitation wavelength for the luminescent material, the luminescent resin film and two or more light sources being placed such that the light beams emitted from the light sources at least partly overlap on the luminescent resin film.

The present invention aims to provide a display device capable of displaying a gradation pattern in which the gradation pattern on a laminated glass can be changed at will and a display state can be switched to a transparent state, and an automobile roof glass and a building window glass each including the display device. Provided is a display device capable of displaying a gradation pattern, including: a laminated glass including a pair of glass plates and an interlayer film for a laminated glass that contains a thermoplastic resin and a luminescent material and is interposed between the pair of glass plates; and a light source configured to emit light of excitation wavelength for the luminescent material, the laminated glass and the light source being disposed such that the laminated glass is irradiated from its periphery toward the inside with the light emitted from the light source.

A laminated glazing having a first glass substrate (104) and a second glass substrate (108) and a polymer interlayer (106) laminated between the first glass substrate and the second glass substrate, being formed with a light path (120) formed in any one or combination of the first and second glass substrates and the polymer interlayer for guiding light emitted from a light source (112), a light introduction surface (110) for introducing the light emitted from the light source into the light path, and a light extraction surface (130,150) for extracting, from the light path, the light to either one or both of an interior and an exterior of the first and second glass substrates.

The present invention disclosure provides a spectrally selective panel that comprises a first material being at least partially transmissive for light having a wavelength in the visible wavelength range and being arranged for guiding suitable light. Further, the panel comprises a diffractive element being positioned in, at or in the proximity of the first material. The diffractive element is arranged to deflect predominantly light having a wavelength in an IR wavelength band. The first material is arranged and the diffractive element is oriented such that at least a portion of energy associated with IR light incident from a transversal direction of the spectrally selective panel is directed along the panel towards a side portion of the panel.

Provided is an interlayer film for laminated glass which produces a high contrast image under light radiation, is less susceptible to color changes, and allows for control of the adhesion, as well as a laminated glass including the interlayer film. The interlayer film includes a light emitting layer containing a polyvinyl acetal, a light emitting material having a terephthalic acid ester structure, and a potassium salt.

An interlayer comprised of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive. The use of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive reduces or minimizes the optical defects (such as high color or yellowness and increased haze) caused by discoloration of the pigment without sacrificing other characteristics of the interlayer.

This invention discloses novel compounds containing a bitriazine building block. These compounds can be used as host materials or electron transporting materials for organic light-emitting devices.

The present invention provides an interlayer film for laminated glass provided with an up-conversion function so as to be able to display high-contrast images while ensuring safety, and a laminated glass. The present invention relates to an interlayer film for laminated glass, including lanthanoid-containing inorganic fine particles having an up-conversion function and a binder resin.

An object of the present invention is to provide an interlayer film for laminated glass which has high transparency, and can prevent flying pests from gathering thereon, and a laminated glass including the interlayer film for laminated glass. The present invention provides an interlayer film for laminated glass including a thermoplastic resin layer containing a thermoplastic resin and one of a compound having a structure represented by the following general formula (1) and a compound having a structure represented by the following general formula (2): ##STR00001##
in the general formula (1), R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are individually an organic group, and M is a polyvalent metal, ##STR00002##
in the general formula (2), R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.21 and R.sup.22 are individually an organic group, and M is a polyvalent metal.

Novel compounds containing quinazoline are disclosed in this application. In these compounds, the quianzoline moiety is combined with additional aromatic groups such as dibenzothiophene, triphenylene and carbazole to provide superior properties for OLED.