Embodiments of the present disclosure provide a projector and a method of driving a projector. The projector includes an image source for generating an image light and a transmission and reflection element. The image light includes a bright-state region image light and a dark-state region image light. The transmission and reflection element includes transmission and reflection units. Each of the transmission and reflection units is configured to reflect the image light irradiated thereon when in a reflective state, and to transmit the image light irradiated thereon when in a transmissive state. The transmission and reflection element is configured to perform one of a transmission and a reflection on the bright-state region image light so that the bright-state region image light is projected and displayed, and perform the other on the dark-state region image light so that the dark-state region image light is not projected and displayed.

Embodiments of the present disclosure provide a projector and a method of driving a projector. The projector includes an image source for generating an image light and a transmission and reflection element. The image light includes a bright-state region image light and a dark-state region image light. The transmission and reflection element includes transmission and reflection units. Each of the transmission and reflection units is configured to reflect the image light irradiated thereon when in a reflective state, and to transmit the image light irradiated thereon when in a transmissive state. The transmission and reflection element is configured to perform one of a transmission and a reflection on the bright-state region image light so that the bright-state region image light is projected and displayed, and perform the other on the dark-state region image light so that the dark-state region image light is not projected and displayed.

A display apparatus includes a detecting unit that detects a start position and an end position of an effective image area of an analog image signal, and a determination unit that determines a candidate format as a format of the analog image signal if a first difference and a second difference satisfy a predetermined condition. The first difference represents a difference between the start position of the effective image area and a start position of an effective image area of the candidate format. The second difference represents a difference between the end position of the effective image area and an end position of the effective image area of the candidate format.

Provided by the present technology is an illumination apparatus including a light source section, a phase modulation section, and a control section. The light source section has a light emitting element. The phase modulation section performs spatial light phase modulation on incident light from the light source section. The control section controls the phase modulation section in such a manner that a plurality of domains formed by dividing a phase modulation plane of the phase modulation section reproduces a light intensity distribution based on a common phase distribution determined on the basis of a Freeform method in a common region on a projection plane.