Display device and display control method

A display control method of a display device, comprising:

• providing the display device with
• a light modulation device including a plurality of pixels disposed corresponding to respective intersections between a plurality of scan lines and a plurality of data lines, and
• a light source adapted to irradiate the light modulation device with light in accordance with PWM control;
• selecting the plurality of scan lines by K lines (K is an integer not smaller than 2), and then writing a data signal into the pixels corresponding to the selected scan lines in an image update period;
• selecting at least a part of the plurality of scan lines line by line, and then writing the data signal into the pixels corresponding to the selected scan line in an image display period subsequent to the image update period;
• and
• performing the PWM control of the light source so as to set a duty ratio in a part of the image display period to be higher than the duty ratio in another part of the image display period in a case of irradiating the light modulation device with the light with a predetermined luminance.

A display device comprising:

• a light modulation device including a plurality of pixels disposed corresponding to respective intersections between a plurality of scan lines and a plurality of data lines;
• a light source adapted to irradiate the light modulation device with light in accordance with PWM control;
• a light modulation device control section adapted to control the light modulation device
• to select the plurality of scan lines by K lines (K is an integer not smaller than 2), and then write a data signal into the pixels corresponding to the selected scan lines in an image update period, and
• to select the plurality of scan lines by L lines (L is an integer not smaller than 1 and not larger than K−1), and then write the data signal into the pixels corresponding to the selected scan lines in an image display period subsequent to the image update period;
• and
• a light source control section adapted to perform the PWM control of the light source so as to set a duty ratio in a part of the image display period to be higher than the duty ratio in another part of the image display period in a case of irradiating the light modulation device with the light with a predetermined luminance.