Display apparatus and method of controlling the same
US11579475B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 8, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | May 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/403
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling a display apparatus includes: when the display apparatus is in a privacy display mode, obtaining, by an image processor, a plurality of frames of display images according to a frame of original image, transmitting, by the image processor, the plurality of frames of images to a display controller; controlling, by the display controller, the display panel to display the plurality of frames of display images in sequence within a display time of the frame of original image, and controlling, by the display controller, the grating panel to form light-transmitting regions and non-light-transmitting regions that are alternately arranged when the display panel displays each frame of display image, so as to limit an exit angle of light exiting from the display side of the display apparatus, the exit angle being within a range of a privacy viewing angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.