PROJECTION TYPE DISPLAY DEVICE AND OPTICAL BLOCK FOR PROJECTION TYPE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To fix a reflection type light valve to a polarization beam splitter. SOLUTION: A 1st united member 201 is stuck to the polarization beam splitter 107G with direct fitting members 2013U and 2013L while the top and reverse surfaces of the polarization beam splitter 107G through which light does not pass are sandwiched by filling adhesive in through holes (opening) HU and HL. A 1/4-wavelength phase plate united member 202 to which a 1/4- wavelength phase plate 108G is stuck has a holding part 2021U inserted into a through hole 2012U of the 1st united member 201 and a holding part 2021L inserted into a through hole part 2012L respectively. A light valve united member 203 fitted with the light valve 109G has the tips of solder fitting parts 2031U and 2031L soldered to soldering fitting parts 2011U and 2011L of the 1st united member 201 respectively.