Display apparatus and driving method of the same
US8833947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2007 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3182
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a variable aperture stop device, a control circuit and a user interface. The variable aperture stop device is operable to adjust the lens opening size by opening and closing an aperture. The control circuit is operable to control the opening and closing of the aperture based on an aperture ratio for the brightness distribution of an input signal constituting a screen. The user interface permits to set times necessary for the opening and closing of the aperture. The control circuit controls the opening and closing of the aperture based on times set via the user interface so that the response to the opening and closing of the aperture differs between when the signal changes from dark to light levels and when the level changes from light to dark levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.