Optical device and display device

A display device, comprising:

• a liquid crystal element comprising a first substrate comprising a plurality of first control electrodes, a second substrate which is opposed to the first substrate and comprises a second control electrode, and a first liquid crystal layer held between the first substrate and the second substrate;
• a modulation element which is opposed to the liquid crystal element, the modulation element comprising a modulation portion which modulates first polarized light and second polarized light, and a non-modulation portion which is adjacent to the modulation portion;
• an optical element which is opposed to the modulation element, and transmits the second polarized light;
• a liquid crystal display panel which is opposed to the optical element, and is illuminated by the second polarized light;
• and
• a display controller which controls the liquid crystal display panel including a first display area and a second display area, and an optical controller which controls the liquid crystal element including a first control area and a second control area, wherein
• the first control area is opposed to the first display area,
• the second control area is opposed to the second display area,
• the display controller displays a first image of a first gradation value in the first display area, and displays a second image of a second gradation value in the second display area, the second gradation value being different from the first gradation value, and
• the optical controller forms no lens in the first control area of the first liquid crystal layer, and forms a lens, which converges light incident on the liquid crystal element to the modulation portion, in the second control area of the first liquid crystal layer.

A display device, comprising:

• a liquid crystal element comprising a first substrate comprising a plurality of first control electrodes, a second substrate which is opposed to the first substrate and comprises a second control electrode, and a first liquid crystal layer held between the first substrate and the second substrate;
• a modulation element which is opposed to the liquid crystal element, the modulation element comprising a modulation portion which modulates first polarized light and second polarized light, and a non-modulation portion which is adjacent to the modulation portion;
• an optical element which is opposed to the modulation element, and transmits the second polarized light;
• and
• a liquid crystal display panel which is opposed to the optical element, and is illuminated by the second polarized light, wherein
• the modulation element comprises a third substrate comprising a plurality of third control electrodes, a fourth substrate which is opposed to the third substrate and comprises a fourth control electrode, and a second liquid crystal layer held between the third substrate and the fourth substrate,
• the modulation portion and the non-modulation portion are formed in the second liquid crystal layer,
• the liquid crystal display panel comprises a fifth substrate, a sixth substrate, a third liquid crystal layer held between the fifth substrate and the sixth substrate, and a pixel electrode and a common electrode which apply a voltage to the third liquid crystal layer, and
• the pixel electrode is a reflective electrode, and the common electrode is a transparent electrode.