Abstract
A masking device disposed over a display has a first viewing region, a second viewing region, a first operating mode, and a second operating mode, wherein in the first operating mode the masking device allows a first observer located in the first viewing region to observe information displayed on the display, and also allows a second observer located in the second viewing region to observe the displayed information, wherein in the second operating mode the masking device projects light to the second viewing region so as to prevent the second observer from observing the displayed information.
Patent family as of 1.9.2022
CN114035259 A20220211CN20211124803620211026FI20206055 A20220427FI2020000605520201026
US11409030 BB20220809US2021051102820211026
US2022128757 AA20220428US2021051102820211026
WO22090614 A120220505WO2021FI5071020211025
Link to current patent family on right
| Original language | English |
|---|---|
| Patent number | US11409030 |
| IPC | G02F 1/ 137 A I |
| Priority date | 26/10/20 |
| Publication status | Published - 28 Apr 2022 |
| MoE publication type | H1 Granted patent |