US 12,073,749 B2
Method and system for acoustically transparent light emitting display
Karim Meersman, Kortemark (BE); Greet Adams, Deerljk (BE); and Daniel De Caster, Kruishoutem (BE)
Assigned to BARCO N.V., Kortrijk (BE)
Appl. No. 17/297,643
Filed by BARCO N.V., Kortrijk (BE)
PCT Filed Dec. 21, 2018, PCT No. PCT/EP2018/086820
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2020/126061, PCT Pub. Date Jun. 25, 2020.
Prior Publication US 2022/0058995 A1, Feb. 24, 2022
Int. Cl. G09F 9/33 (2006.01); G06F 1/16 (2006.01); G09F 27/00 (2006.01); H04R 1/02 (2006.01)
CPC G09F 9/335 (2021.05) [G06F 1/1601 (2013.01); G09F 27/00 (2013.01); H04R 1/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for providing an acoustically transparent imaging display, said system comprising
a substrate with light sources on one side,
a display surface and perforations having a first visible optical reflectance, the perforations extend perpendicularly to the display surface and are disposed between the light sources,
wherein a layer having a second visible optical reflectance is disposed on the substrate on the side of the light sources, the layer having an acoustical transparency attenuation of at most −10 dB, and the difference between the optical reflectance in the visible wavelength range of the layer and that of the perforations is lower than the difference between optical reflectance in the visible wavelength range of the substrate and that of the perforations.