Polarization switching device, driver of polarization switching device, and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsJong Jae Lee, Jun Dal Kim, Cheol-Ho Lee
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Abstract
A polarization switching device includes a lower panel; an upper panel facing the lower panel; a liquid crystal layer disposed between the lower panel and the upper panel; and a driver to apply a first driving voltage and a second driving voltage to the lower panel and the upper panel, respectively, the first driving voltage to transition among a center voltage, a first voltage and a second voltage. The first voltage and the second voltage have the same difference in value from the center voltage. The driver includes a voltage changing unit to generate the first voltage and the second voltage based on a digital data input to a first digital-analog converter.
Claims21
A polarization switching device, comprising:
- a lower panel;
- an upper panel facing the lower panel;
- a liquid crystal layer disposed between the lower panel and the upper panel;
- and
- a driver to apply a first driving voltage and a second driving voltage to the lower panel and the upper panel, respectively, the first driving voltage to transition among a center voltage, a first voltage and a second voltage, the first voltage and the second voltage having the same difference in value from the center voltage,
- wherein:
- the driver comprises a voltage changing unit to generate the first voltage and the second voltage by a first digital-analog converter based on the center voltage and a digital data input therein;
- and
- the first voltage and the second voltage are configured to dynamically change based on the digital data input.
A driver of a polarization switching device, comprising:
- a voltage changing unit to generate a first voltage and a second voltage having the same difference in value from a center voltage based on the center voltage and digital data input to a first digital-analog converter,
- wherein:
- the driver is configured to left-eye circularly polarize or right-eye circularly polarize linearly polarized light;
- and
- the first voltage and the second voltage are configured to dynamically change based on the digital data input.
A method of driving a polarization switching device, comprising:
- generating a first voltage and a second voltage based on a center voltage and a digital data input to a first digital-analog converter, the first voltage and the second voltage having the same difference in value from the center voltage with different polarities from each other;
- transitioning the first driving voltage among the center voltage, a first voltage and a second voltage;
- and
- applying the first driving voltage and the second driving voltage to a lower panel and an upper panel, respectively,
- wherein the first voltage and the second voltage dynamically change based on the digital data input.
Dependencies are inferred from the claim text.