LAMINATED GLASS PANEL INTENDED TO BE USED AS THE SCREEN OF A HEAD-UP DISPLAY SYSTEM

• Main Authors: FOURNIER DAVID, PAYEN CORINNE
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2019
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MINERAL OR SLAG WOOL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; SOUND-PRODUCING DEVICES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING

The invention relates to a laminated glass panel intended to be used as the screen of a head-up display system, including: two glass sheets (1, 2), wherein the total thickness of the glass sheets (1,2) is strictly lower than 3.7mm; and a viscoelastic plastic insert (3) arranged between the two glass sheets (1, 2). The insert includes at least one layer (3) made of a viscoelastic-plastic having vibroacoustic damping properties based on polyvinyl butyral and plasticizer and two outer layers (4,5) which are made of standard PVB, wherein the layer (3) is arranged between the two outer layers (4,5)and has rigidity that is lower than that of the outer layers (4,5), and has a transverse cross-section that decreases in the form of a wedge from the top to the bottom of the laminated glass panel. The invention makes it possible to impart the vibroacoustic damping properties to a laminated glass panel intended to be used as the screen of a head-up display system and makes it possible to decreasethe thickness of the glas