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US 12,675,016 B2Granted
Complex light modulator, holographic display device, and see-through display device
AssigneesSamsung Electronics Co., Ltd., Korea University Research and Business Foundation, Sejong Campus
InventorsYunhee Kim, Hwi Kim, Sehwan Na, Hoon Song, Hongseok Lee
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Abstract
A complex light modulator including a first polarization plate, a second polarization plate provided, an amplitude modulator provided between the first polarization plate and the second polarization plate, a phase modulator provided between the amplitude modulator and the second polarization plate, and color filters provided between the amplitude modulator and the phase modulator.
Claims14
A complex light modulator comprising:
- a first polarization plate;
- a second polarization plate;
- an amplitude modulator provided between the first polarization plate and the second polarization plate;
- a phase modulator provided between the amplitude modulator and the second polarization plate;
- and
- color filters provided between the amplitude modulator and the phase modulator,
- wherein the phase modulator and the amplitude modulator are configured to generate a first complex pixel having first complex light modulation characteristics and a second complex pixel having second complex light modulation characteristics,
- wherein the first complex pixel comprises first sub-complex pixels arranged in a 3×3 matrix and configured to implement the first complex light modulation characteristics,
- wherein the second complex pixel comprises second sub-complex pixels arranged in a 3×3 matrix and configured to implement the second complex light modulation characteristics, and
- wherein the first complex pixel and the second complex pixel share a first overlapping pixel included in the first sub-complex pixels and the second sub-complex pixels.
7 more elements
A holographic display device comprising:
- a backlight unit configured to provide light having coherence;
- a Fourier lens configured to focus the light;
- and
- a complex light modulation element provided on a path of the light,
- wherein the complex light modulation element comprises:
- a first polarization plate;
- a second polarization plate;
- an amplitude modulator provided between the first polarization plate and the second polarization plate;
- a phase modulator provided between the amplitude modulator and the second polarization plate;
- and
- color filters provided between the amplitude modulator and the phase modulator,
- wherein the phase modulator and the amplitude modulator are configured to generate a first complex pixel having first complex light modulation characteristics and a second complex pixel having second complex light modulation characteristics,
- wherein the first complex pixel comprises first sub-complex pixels arranged in a 3×3 matrix and configured to implement the first complex light modulation characteristics,
- wherein the second complex pixel comprises second sub-complex pixels arranged in a 3×3 matrix and configured to implement the second complex light modulation characteristics, and
- wherein the first complex pixel and the second complex pixel share a first overlapping pixel included in the first sub-complex pixels and the second sub-complex pixels.
12 more elements
A see-through display device comprising:
- a holographic display device configured to generate a holographic image;
- a combiner configured to combine the holographic image with an actual image and provide a combined image;
- and
- a projection optical system configured to project the holographic image provided by the holographic display device to the combiner,
- wherein the holographic display device comprises:
- a backlight unit configured to provide light having coherence;
- a Fourier lens configured to focus the light;
- and
- a complex light modulation element provided on a path of the light, and
- wherein the complex light modulation element comprises:
- a first polarization plate;
- a second polarization plate;
- an amplitude modulator provided between the first polarization plate and the second polarization plate;
- a phase modulator provided between the amplitude modulator and the second polarization plate;
- and
- color filters provided between the amplitude modulator and the phase modulator,
- wherein the phase modulator and the amplitude modulator are configured to generate a first complex pixel having first complex light modulation characteristics and a second complex pixel having second complex light modulation characteristics,
- wherein the first complex pixel comprises first sub-complex pixels arranged in a 3×3 matrix and configured to implement the first complex light modulation characteristics,
- wherein the second complex pixel comprises second sub-complex pixels arranged in a 3×3 matrix and configured to implement the second complex light modulation characteristics, and
- wherein the first complex pixel and the second complex pixel share a first overlapping pixel included in the first sub-complex pixels and the second sub-complex pixels.
17 more elements
Dependencies are inferred from the claim text.