Crosstalk suppression in time sequential liquid crystal stereoscopic display systems
First Claim
1. A method for crosstalk suppression in a time sequential liquid crystal stereoscopic display system, comprising:
- after displaying a first eye image, stopping light to a viewer for a dark period;
during the dark period;
writing data sequentially on a liquid crystal (LC) panel, andapplying a reset pulse to an electrode on the LC panel after the last line is written; and
allowing light to the viewer after the reset pulse is applied, for a viewing period.
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Accused Products
Abstract
This disclosure primarily concerns 3D stereoscopic displays that provide alternately polarized left and right eye images encoded with a modulating LC polarization control panel (PCP) attached to the front of the display. Viewers then wear polarization analyzing eyewear to correctly see the different images. More specifically, the disclosure introduces global LC electrical reset during the addressing of liquid crystal time-sequential stereoscopic displays in order to reduce left/right eye contamination. LC materials in general do not respond fast enough with conventional addressing schemes to provide independent left and right eye images at the desired flicker-free, rate of sixty frames per second per eye. This disclosure and its embodiments may overcome this limitation, and also may address motion blur limitations, by driving pixels to a common LC state as part of the addressing cycle.
23 Citations
20 Claims
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1. A method for crosstalk suppression in a time sequential liquid crystal stereoscopic display system, comprising:
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after displaying a first eye image, stopping light to a viewer for a dark period; during the dark period; writing data sequentially on a liquid crystal (LC) panel, and applying a reset pulse to an electrode on the LC panel after the last line is written; and allowing light to the viewer after the reset pulse is applied, for a viewing period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for crosstalk suppression in a time sequential liquid crystal stereoscopic display system, comprising:
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after displaying a first eye image, turning off a backlight for a dark period; during the dark period; writing data sequentially on a liquid crystal (LC) panel, and applying a reset pulse to an electrode on the LC panel just after the last line is written; and turning on the backlight just after the reset pulse is applied, for a viewing period. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for crosstalk suppression in a time sequential liquid crystal stereoscopic display system, comprising:
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after displaying a first eye image, blocking light by synchronizing the display system with shutter glasses blocking light from reaching a viewer for a dark period; during the dark period; writing data sequentially on a liquid crystal (LC) panel, and applying a reset pulse to an electrode on the LC panel just after the last line is written; and allowing light by synchronizing the display system with the shutter glasses allowing light to reach the viewer just after the reset pulse is applied, for a viewing period. - View Dependent Claims (17, 18, 19, 20)
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Specification