| 摘要 |
A projection type projector includes a light modulation part (30) modulating light generated by a light source part (20), a video signal processing part (50) processing a video signal to be input, and a projection optical system (40) projecting the light modulated by the light modulation part (30) onto an external projection target to obtain a projected video image. The video signal processing part (50) includes a blue light effect alleviating part alleviating effects of blue light on retinas. In a case where among a red signal, a green signal, and a blue signal included in a video signal, only a ratio of the blue signal is high, the blue light effect alleviating part generates a blue light effect alleviating signal for controlling the light source part to reduce the brightness of the projected video image as a whole. |
