A method for producing a composite pane, includes arranging a functional element in a recess of a thermoplastic frame film, arranging the thermoplastic frame film along with the functional element between a first glass pane and a second glass pane to form a layer stack, and subsequent joining of the layer stack by lamination to form a composite pane. The thermoplastic frame film and the functional element have a different thickness and the different thickness is at least partially compensated by at least one thermoplastic compensating film, whose thickness is less than twice as large as the difference between the thicknesses of the thermoplastic frame film and the functional element such that the maximum offset in the layer stack is less than the difference between the thicknesses of the thermoplastic frame film and the functional element.

There is provided an interlayer film for a laminated glass having improved appearance which has a MD and TD direction; and one end, and another end being opposite side of and thicker than the one end. The one end and other end are positioned on both sides of the interlayer film in the TD direction. When the distance between the one end and other end is X, the absolute value for the difference between the largest and smallest thermal shrinkage ratios from among three thermal shrinkage ratios is 15% or less. The three thermal shrinkage ratios are positioned from the one end towards the other end in MD direction with a first thermal shrinkage ratio at 150 C. at a first position at 0.05X, a second thermal shrinkage ratio at 150 C. at a second position at 0.5X, and a third thermal shrinkage ratio at 150 C. at a third position at 0.95X.

A luminous laminated glazed roof of a vehicle includes a first glazing, forming an exterior glazing, with first and second main faces; a lamination interlayer made of polymeric material of thickness e1 of at most 1.8 mm; a second glazing, forming an interior glazing, with third and fourth main faces, the second and third main faces being the internal faces of the laminated glazing; a lamination interlayer with through or blind apertures housing diodes; and collimating optics between the diodes and the third main face.

A laminated glass for implementing HUD function, the laminated glass including an outer glass layer; an inner glass layer; a PVB film located between the outer glass layer and the inner glass layer; wherein the PVB film is of a uniform thickness, the laminated glass further includes a reflection film.

Vehicle glazing, which once served just to provide for vision and protect from the elements, has been taking on new functions as the complexity and functionality of modern automobiles has evolved. Performance films and interlayers are often used to add to and enhance the functionality of laminates. These functions include solar control, sound dampening, head up display and variable light transmittance. Recent advances have made it possible to produce electronic circuits on thin transparent substrates that are essentially invisible under normal lighting conditions. While these circuits can be inserted into the laminate and successfully laminated, the edges of the circuit insert are prone to objectionable aesthetics due to mismatch between the substrate and the interlayer index of refraction, thickness and color. The present invention compensates the edge of the solid insert by providing a sheet of a compatible compensation material that the substrate of the insert and which extends to at least the black band or the edge of glass of the laminate making the insert edge essentially invisible.

The use of camera-based safety systems is growing at a rapid rate in automobiles where they are used to provide lane departure warning, collision avoidance, adaptive cruise control and other functions. As the industry moves towards full autonomous capability, the number of cameras and the resolution are increasing. For proper operation, the cameras require a clear undistorted field of view. Keeping the camera area free of snow and ice has been a problem. A resistive heating circuit is typically used to keep the area clear. For rapid clearing the circuit needs to operate at a high-power level. Due to the temperature dependent index of refraction of the plastic interlayer, severe distortion can result from the non-isothermal heating resulting from the spacing of the circuit elements. The laminate of the invention reduces distortion by removing the interlayer in the camera field of view and replacing with a plastic having a more temperature stable index of refraction.

Provided is a laminated glass capable of suppressing heat deterioration of a light source device for irradiating a laminated glass that is a head-up display with light for image display. A laminated glass according to the present invention is a head-up display, the laminated glass has a wedge angle of 0.1 mrad or more, or contains a luminescent material, the laminated glass includes a first lamination glass member, a second lamination glass member, and an interlayer film, the first lamination glass member is arranged on a first surface side of the interlayer film, the second lamination glass member is arranged on a second surface side opposite to the first surface of the interlayer film, and the laminated glass has a solar transmittance of 50% or less, and a solar reflectance of 15% or more.

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.

A vehicle glazing (10) wherein a light guide stack (22) is located between a portion of the inner transparency (26) and the outer transparency (28). The light guide stack includes a polycarbonate film (32) that is bonded to the transparencies by layers of PET (38, 40) that are secured to the polycarbonate film on one side by silicone (34, 36) and that are secured to the transparencies on the other side by PVB (42, 44). The terminal end of an extending tab of the polycarbonate film forms an edge that is connected to a light bar (14) that such visible light propagates through the light bar and into the polycarbonate film through the edge. Visible light propagates through etchings in the smooth surface of the polycarbonate film to form an image. An extension of one of the transparencies protects the polycarbonate tab and supports the light bar during installation of the glazing into the vehicle portal.

An electrical device includes a substrate; at least two electrically conductive pathways directly on a first major surface of the substrate and in electrical communication with an electrically operable light source on the substrate; and an infrared radiation reflecting film on at least a portion of a second major surface of the substrate, the infrared radiation reflecting film configured to reduce the amount of infrared radiation that passes from the second major surface of the substrate to the first major surface of the substrate. The at least two electrically conductive pathways include a first electrically conductive pathway and a second electrically conductive pathway arranged such that upon electrically connecting the first and second electrically conductive pathways to a power supply, the electrically operable light source switches on.