Projector for displaying a three-dimensional picture

A projector comprising:

• a light valve which is driven in accordance with a first image signal in a first period and a second image signal in a second period in a time division manner;
• a light source unit which emit a light toward the light valve;
• and
• a light source drive section that supplies a light source drive current to the light source unit;
• wherein the light source drive section supply a first drive current so as to the light source unit emits a first brightness in a first part of the first period, the first part of the first period is included within the first period, and the first brightness is a maximum brightness, and
• the light source drive section supply a second drive current so as to the light source unit emits a second brightness in a second part of the second period, the second part of the second period is included within the second period, and the second brightness has the same maximum brightness as the first brightness.

A projector comprising:

• a light valve which is driven in accordance with a first frame image in a first frame and a second frame image in a second frame, the second frame is a next frame to the first frame;
• a light source unit which emit a light toward the light valve;
• and
• a light source drive section that supplies a light source drive current to the light source unit;
• wherein the light source drive section supply a first drive current so as to the light source unit emits a first brightness in a first part of the first frame, the first part of the first frame is included within the first frame, the first brightness is a maximum brightness in the first frame, and the first frame image is projected in the first part of the first frame, and
• the light source drive section supply a second drive current so as to the light source unit emits a second brightness in a second part of the second frame, the second part of the second frame is included within the second frame, and the second brightness is a maximum brightness in the second frame, and the second frame image is projected in the second part of the second frame.