05-10-2017 дата публикации
Номер: WO2017170710A1
Принадлежит:
Provided is a luminance adjustment device that, by photographing the screen of an image display device formed from a plurality of display units, measures the luminance of an image displayed on each display unit, and that adjusts the luminance on the basis of measurement results, wherein, on the basis of photographing angles (α, β) with respect to each display unit, a distance (Rn) from a camera (22) to each display unit is specified (37); a light distribution characteristic value (f(αn, βn)) is calculated from a light distribution characteristic expression (f(α, β)) and photographing angles (αn, βn); a target luminance (Ltn) is determined from the calculated light distribution characteristic value (f(αn, βn)) and the distance (Rn); and a correction value (Hn) for matching the measured luminance (Ln) with the target luminance (Ltn) is calculated (41). Even if the measured luminance varies among the display units due to differences in distance from the camera, the luminance can be appropriately ...
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