Retention and other mechanisms or processes for display calibration
AssigneeDolby Laboratories Licensing Corporation
InventorRobin Atkins
Life of this patent
Estimating the term…
Abstract
A “burn-in” is purposely performed on an LCD panel. The “burn-in” is calculated to compensate for an artifact or malfunction of a display using the LCD panel. The “burn-in” may be calculated, for example, to compensate for brightness levels in a light field emanating from the backlight of a dual modulation display. The burn in performed, for example, during periods of “power-off” of the display (e.g., when the backlight of an LCD is off).
Claims23
A display comprising a spatial light modulator and a controller configured to energize the spatial light modulator in a manner that causes the spatial light modulator to exhibit persistence.
A method, comprising the steps of:
- energizing an LCD panel to cause a persistence effect;
- and
- operating the LCD panel in a manner to produce a desired image while the persistence effect is present.
A display, comprising:
- a spatial light modulator;
- a backlight configured to be capable of providing a spatially modulated backlight and illuminate the spatial light modulator;
- and
- a controller configured to provide signals to the backlight causing the spatially modulated backlight to produce an approximation of a desired image and provide signals to the spatial light modulator to further modulate the backlight to produce a desired image;
- wherein the controller is further configured to energize the spatial light modulator in a manner that causes a compensatory persistence to be present in the spatial light modulator.
Dependencies are inferred from the claim text.