| 摘要 |
FIELD: electricity.SUBSTANCE: in a lighting device (20), which is formed by many flat light sources (21) arranged in direction of the plane and having displaced distribution of brightness at a light-emitting plane (43), flat light sources (21) have identical direction of displacement in brightness distribution. Flat light sources (21) are arranged so that some of flat light sources (21) have displacement direction that differs from other light sources (21), and a section with high brightness and a section with low brightness of the light-emitting plane (43) are arranged on the straight line. With such configuration sections with high brightness are not arranged in one row, which does not cause bright strips and accordingly improves quality of an image.EFFECT: achievement of even distribution of brightness on a surface for light emission and higher quality of an image.18 cl, 15 dwg |
