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Stereoscopic display apparatus using LCD panel

A technology for panels and projection devices, applied in projection devices, stereo systems, instruments, etc., can solve the problems of low brightness level and low efficiency, and achieve the effect of increasing brightness

Inactive Publication Date: 2008-12-24
EASTMAN KODAK CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] Traditional stereoscopic imaging systems using electronic display components are generally inefficient and provide low brightness levels

Method used

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  • Stereoscopic display apparatus using LCD panel
  • Stereoscopic display apparatus using LCD panel
  • Stereoscopic display apparatus using LCD panel

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Embodiment Construction

[0054] The present description is particularly directed to elements forming part of, or cooperating more directly with, the device according to the invention. It is to be understood that elements not specifically shown or described may take various forms well known to those skilled in the art.

[0055] The invention adapts one or more TFT LC devices for stereoscopic projection. The main components of the stereoscopic imaging device 200 are shown in a block diagram of FIG. 2 . The illumination source 210 splits light into two channels (left and right) according to characteristic properties such as polarization or spectral content. Each channel is provided for modulation: the left channel is provided to modulation device 2201 and the right channel is provided to modulation device 220r. Modulation devices 2201 and 220r operate to form an image 64 , such as the intermediate image shown in FIG. 2 , which is projected by projection lens 62 onto display surface 40 . Depending on h...

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Abstract

A stereoscopic imaging apparatus (200) has an illumination source (110) providing polarized illumination beams and at least one uniformizing element (22) for uniformizing first and second illumination beams. A left channel modulation apparatus (220l) modulates the first polarized illumination beam to provide the left eye portion of the stereoscopic image and a right channel modulation apparatus (220r) modulates the second polarized illumination beam to provide the right eye portion. Each channel modulation apparatus has a color separator (78) for separating the polarized illumination beam into at least a first component wavelength illumination and a second component wavelength illumination. Each channel modulation apparatus also has at least two component wavelength modulating sections, each component wavelength modulating section being a portion of a monochrome transmissive liquid crystal modulator panel (60) that accepts a corresponding component wavelength illumination and modulates the component wavelength illumination to provide a modulated component wavelength beam.

Description

[0001] Cross References to Related Applications [0002] This application is related to pending US Patent Application Serial No. 11 / 120331, filed May 3, 2005, by Silverstein et al., entitled "DISPLAY APPARATUS USING LCD PANEL," the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates generally to electronic projection, and more particularly to stereoscopic electronic projection devices that use one or more liquid crystal (LC) modulator panels to form full-color stereoscopic projection images. Background technique [0004] Liquid crystal (LC) technology has been successfully developed for many display applications, ranging from monochrome alphanumeric display panels to laptop computers, and even to large-scale full-color displays. As is well known, LC devices form an image into an array of pixels by selectively modulating the polarization state of incident light for each corresponding pixel. Continuous improvements i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G02B30/25H04N13/363
CPCH04N13/337H04N13/334H04N13/363H04N13/00G03B21/00
Inventor B·D·席渥斯坦
Owner EASTMAN KODAK CO
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