Patent ID: 8922735
Filing Date: 2014-12-30
Classification: G02F

Abstract:
1. A backlight system comprising: a light-emitting section having a plurality of light sources that emit beams of light at different dominant wavelengths from one another; an imaging optical system including a plurality of microlenses that focus beams of light emitted from the light-emitting section; a PS conversion element which faces an entrance side of the imaging optical system and which includes (i) an element that transmits a particular polarized beam of light and reflects a remaining beam of light and (ii) a ½ wavelength plate on top of which the element is joined; and a plane mirror that reflects a beam of light emerging from the PS conversion element and causes the beam of light to enter the imaging optical system, the backlight system irradiating a liquid crystal panel with beams of light having passed through the imaging optical system, the liquid crystal panel including a plurality of pixels arrayed at a predetermined pitch from each other, each of the pixels being configured to include a plurality of picture elements corresponding to each separate color, on the assumption that the pitch at which the pixels are arrayed is denoted as P and the imaging optical system has an imaging magnification of (1/n), the light sources being arrayed at a pitch P