Patent ID: 9033512
Filing Date: 2015-05-19
Classification: G03B,H04N

Abstract:
1. A projection display, comprising: an illumination optical system provided with a light source including, for respective predetermined colors, LED arrays each formed of m LEDs, where m is an integer equal to or larger than two, the illumination optical system composing fluxes of light emitted from said LED arrays into illumination light having one optical path; a light source controller that controls said LED arrays to turn on n LEDS of each of said LED arrays, n being an integer smaller than m; an integration device that uniformizes the illuminance distribution of the illumination light emitted from the illumination optical system; and an image display device that modulates the illumination light emitted from said integration device into video light, wherein said light source controller controls said LED arrays to turn on said n LEDs in each of said LED arrays such that the shapes of light source images formed on an entrance surface of said integration device coincide with each other.