Optical device including optical modulation device, and driving method thereof
First Claim
1. An optical device, comprising:
- a display panel that displays an image;
a phase retardation plate disposed on the display panel that includes a quarter-wave plate; and
an optical modulation device that includes a first plate and second plate disposed to face each other, a liquid crystal layer disposed between the first plate and the second plate and that includes a plurality of liquid crystal molecules, and a plurality of unit areas,wherein the first plate includes a plurality of lower electrodes that extend in a first direction and are arranged in a second direction that crosses the first direction, the second plate includes an upper electrode,wherein light emitted from the display panel is received by the optical modulation device, andwhen the display panel displays a first image during a first subframe, the optical modulation device applies a first driving signal to the plurality of lower electrodes and changes a circular polarization direction of light received from the phase retardation plate, andwhen the display panel displays a second image during a second subframe following the first subframe, the optical modulation device applies a second driving signal different from the first driving signal to the plurality of lower electrodes and maintains the circular polarization direction of light received from the phase retardation plate.
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Accused Products
Abstract
An optical device includes a display panel displaying an image and an optical modulation device that includes a first plate and second plate disposed to face each other and a liquid crystal layer disposed between the first plate and the second plate and including a plurality of liquid crystal molecules, wherein the first plate includes a plurality of lower electrodes extending in a first direction and arranged in a second direction crossing the first direction and the second plate include and an upper electrode. When the display panel displays a first image during a first subframe, the optical modulation device applies a first driving signal to the plurality of lower electrodes, and when the display panel displays a second image during a second subframe following the first subframe, the optical modulation device applies a second driving signal different from the first driving signal to the plurality of lower electrodes.
19 Citations
18 Claims
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1. An optical device, comprising:
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a display panel that displays an image; a phase retardation plate disposed on the display panel that includes a quarter-wave plate; and an optical modulation device that includes a first plate and second plate disposed to face each other, a liquid crystal layer disposed between the first plate and the second plate and that includes a plurality of liquid crystal molecules, and a plurality of unit areas, wherein the first plate includes a plurality of lower electrodes that extend in a first direction and are arranged in a second direction that crosses the first direction, the second plate includes an upper electrode, wherein light emitted from the display panel is received by the optical modulation device, and when the display panel displays a first image during a first subframe, the optical modulation device applies a first driving signal to the plurality of lower electrodes and changes a circular polarization direction of light received from the phase retardation plate, and when the display panel displays a second image during a second subframe following the first subframe, the optical modulation device applies a second driving signal different from the first driving signal to the plurality of lower electrodes and maintains the circular polarization direction of light received from the phase retardation plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of driving an optical device that includes a display panel that emits light to displays an image, a phase retardation plate disposed on the display panel that includes a quarter-wave plate, and an optical modulation device that includes a first plate and a second plate disposed to face each other, and a liquid crystal layer disposed between the first plate and the second plate and that includes a plurality of liquid crystal molecules and receives light emitted from the display panel, the method comprising:
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displaying, by the display panel, a first image during a first subframe; applying, by the optical modulation device, a first driving signal to a plurality of lower electrodes included in the first plate during the first subframe, wherein the optical modulation device changes a circular polarization direction of light received from the phase retardation plate, wherein the plurality of liquid crystal molecules tilt parallel to surfaces of the first and second plates and long axes of the plurality of liquid crystal molecules arrange in a direction parallel to the second direction, wherein the lower electrodes extend in a first direction and are arranged in a second direction crossing the first direction; displaying, by the display panel, a second image during a second subframe that follows the first subframe; and applying, by the optical modulation device, a second driving signal different from the first driving signal to the plurality of lower electrodes during the second subframe, wherein the optical modulation device maintains the circular polarization direction of light received from the phase retardation plate, and wherein the plurality of liquid crystal molecules tilt perpendicular to the surfaces of the first and second plates. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification