US 11,659,147 B2
Liquid crystal projector and method for controlling liquid crystal projector
Toru Aoki, Shiojiri (JP); Shinichi Wakabayashi, Suwa (JP); Masatoshi Ito, Matsumoto (JP); and Daigo Hokazono, Suwa (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Nov. 16, 2021, as Appl. No. 17/527,613.
Claims priority of application No. JP2020-190759 (JP), filed on Nov. 17, 2020.
Prior Publication US 2022/0159224 A1, May 19, 2022
Int. Cl. H04N 9/31 (2006.01); G02F 1/13 (2006.01)
CPC H04N 9/315 (2013.01) [G02F 1/1313 (2013.01); H04N 9/3111 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A liquid crystal projector comprising:
a liquid crystal panel configured to emit a modulated image light,
a sensor configured to detect a temperature of the liquid crystal panel,
an optical path shift element configured to shift an emission optical path of the modulated image light emitted from the liquid crystal panel, and
a control circuit configured to control a velocity of a movement of the emission of the optical path in the shift in the optical path shift element according to the temperature detected by the sensor,
wherein when the temperature detected by the sensor is a second value higher than a first value, the control circuit shifts the emission optical path in the optical path shift element at a velocity higher than a velocity in a case of the first value.