Polarel panel for stereoscopic displays
First Claim
Patent Images
1. A plano-stereoscopic display, comprising:
- an interpixel array of images;
a polarizing sheet having a polarization axis; and
a polarel panel having a plurality of isotropic regions interspersed with a plurality of liquid crystal regions, comprising a pair of substantially flat, parallel transparent sheets having a gap therebetween, a director alignment layer coating at least one of an opposing surface of said transparent sheets, and wherein said regions of isotropic material interspersed with said regions of liquid crystal material fill said gap,wherein the interpixel array, the polarizing sheet, and the polarel panel are held together in intimate juxtaposition.
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Abstract
A polarel panel includes a sheet polarizer in intimate juxtaposition with a layer made up of regions of isotropic material interspersed with regions of liquid crystal material. In one embodiment, optical activity of the liquid crystal material rotates the electric vector of incoming linearly polarized light through 90° in selected areas. In another embodiment, birefringence causes rotation of the electric vector of incoming linearly polarized light through 90° in selected areas.
290 Citations
2 Claims
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1. A plano-stereoscopic display, comprising:
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an interpixel array of images; a polarizing sheet having a polarization axis; and a polarel panel having a plurality of isotropic regions interspersed with a plurality of liquid crystal regions, comprising a pair of substantially flat, parallel transparent sheets having a gap therebetween, a director alignment layer coating at least one of an opposing surface of said transparent sheets, and wherein said regions of isotropic material interspersed with said regions of liquid crystal material fill said gap, wherein the interpixel array, the polarizing sheet, and the polarel panel are held together in intimate juxtaposition.
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2. A plano-stereoscopic display, comprising:
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an interpixel array of images; a polarizing sheet having a polarization axis; and a polarel panel having a plurality of isotropic regions interspersed with a plurality of liquid crystal regions, comprising a first substantially flat transparent sheet having a director alignment coating on an inside surface thereof, a second substantially flat transparent sheet generally parallel with and affixed to the first sheet and having a plurality of grooves formed on an inside surface thereof, said grooves being filled with a liquid crystal material to thereby create said interspersed regions of isotropic material and liquid crystal material; wherein the interpixel array, the polarizing sheet, and the polarel panel are held together in intimate juxtaposition.
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Specification
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Current AssigneeRealD Incorporated
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Original AssigneeStereographics Corporation (RealD Incorporated)
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InventorsLipton, Lenny
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Primary Examiner(s)Sikes, William L.
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Assistant Examiner(s)Duong, Tai V.
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Application NumberUS08/139,267Time in Patent Office1,485 DaysField of Search359/37, 359/53, 359/63, 359/48, 359/74, 359/75, 359/465, 359/489, 359/494, 348/57, 348/58, 349/15, 349/74, 349/96, 349/193, 349/194US Class Current349/15CPC Class CodesG02B 30/25 using polarisation techniquesH04N 13/239 using two 2D image sensors ...H04N 13/286 having separate monoscopic ...H04N 13/324 Colour aspectsH04N 13/337 using polarisation multiple...
