Stereo image identifying device

Abstract

The invention provides a technology by which a user is enabled to visually identify a stereo image without depending on the visual angle in a good condition with excellent opacity and crosstalk prevention. A stereo image identifying device comprises a pair of shutter elements, namely, a first shutter element and a second shutter element; and a drive part selectively driving the first shutter element or the second shutter element to operate by corresponding to the switch between a right-eye image and a left-eye image. The first shutter element and the second shutter element respectively comprise a first polarizer and a second polarizer with their absorption shafts generally perpendicularly configured; a liquid crystal element having a liquid crystal layer with liquid crystal molecules perpendicularly or generally perpendicularly oriented when no voltage is applied and equipped between the first polarizer and the second polarizer; and a first optical compensation board having negative double-shaft optical anisotropy and equipped between the first polarizer and the liquid crystal element. The liquid crystal element is configured in a way that the oriented direction of liquid crystal molecules on the generally central part of the thick direction of the liquid crystal layer and the absorption shaft of the first polarizer or that of the second polarizer are at a generally 45-degree angle. The first optical compensation board is configured in a way that a plane-inside sluggish phase axis is generally perpendicular to the absorption shaft of the first polarizer.

Description

technical field [0001] The present invention relates to image display technology for allowing users to experience stereoscopic display. Background technique [0002] Japanese Unexamined Patent Publication No. 5-257083 (Patent Document 1) discloses a stereoscopic display technology using polarized glasses in which polarizers with polarized light directions differing by 90° are aligned to the left and right eyes and bonded together. . In addition, Japanese Patent Laid-Open No. 6-178325 (Patent Document 2) and Japanese Patent Laid-Open No. 2002-82307 (Patent Document 3) disclose stereoscopic display technology using liquid crystal shutter glasses. The left and right images are synchronized to open and close the left and right shutters. [0003] However, in the conventional example represented by Patent Document 1, a right image and a left image are formed for every other pixel column on the liquid crystal panel, so there is a problem that the resolution of the displayed image...

AI Technical Summary

Problems solved by technology

Therefore, for example, normal vision can be performed at the center of the screen, but crosstalk occurs at the peripheral part of the screen, or the user who uses the shutter glasses to visually recognize the three-dimensional display moves by shaking, tilting his face, etc. When the screen is visually recognized in an oblique orientation, it is easy to cause visually recognized image misalignment or confusion

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