Sound generating panel and method for manufacturing the same, display device with screen generating sound
US12389165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2021 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Sep 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/303
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound generating panel, a display device with a screen generating sound and a method for manufacturing a sound generating panel are provided. The sound generating panel includes sound generating unit groups, each of which includes sound generating units. Each sound generating unit includes a support layer with openings and two piezoelectric structures resonating through a cavity, improving a sound pressure generated by the sound generating panel. Each sound generating unit group includes sound generating units with different radii, thereby realizing sound generating at different frequencies, and improving a sound effect of the sound generating panel. Each of some sound generating unit groups includes ultrasonic detection units for detecting a distance between a listener and the sound generating panel, so that an effect of automatically regulating and controlling a volume of sound is realized. In the display device, the sound generating panel is on a display side of a display panel, so that sound waves can directly enter human ears. The sound generating panel provided by the present disclosure is capable of automatically regulating and controlling the volume of sound and having a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.