| 摘要 |
A compensation method for a display apparatus is disclosed, the display capable of processing input content having an input resolution to display with a display resolution, the processing being such that, without compensation, for a region of the display screen the content display resolution is lower than the content input resolution, resulting in a reduction in a contrast ratio for content in that region. The method comprises at least partially compensating for the contrast ratio reduction (and associated luminance 42) in advance, by decreasing (reducing) the resolution of input content for display (at the region) on which optical or signal processing may be performed. Content resolution may be decreased by anti-aliasing. The display region may have a lower content resolution than another, different region. A contrast ratio of at least 1.2:1 can be ensured. Compensation can comprise increasing a dimension, size, line width (e.g. to three pixels wide 40) and/or scale of display content. Output luminance 42 may be finely tuned by pixel(s) below maximum level, 44. The method is particularly applicable to partially transparent displays, e.g. comprising a combiner, such as a head up display (HUD) or a helmet-mounted display (HMD) where contrast ratio is affected by surrounding ambient light conditions. |
