IP Library Granted Patent US 10,506,212
Granted Patent B2
US 10,506,212 · App. 16/243,590 · Granted Dec 10, 2019

Stereoscopic display apparatus

Inventors: Kazunori Masumura (Kanagawa, JP); Tetsushi Sato (Kanagawa, JP); Koji Shigemura (Kanagawa, JP)
Assignee: TIANMA MICROELECTRONICS CO., LTD.
H04N13/128G02B27/2214H04N13/305H04N13/327H04N13/363H04N13/366H04N13/398H04N13/31
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Quick Facts
Patent No.
US 10,506,212
App. No.
16/243,590
Granted
Dec 10, 2019
Kind
B2
Abstract

A stereoscopic display apparatus includes: a projector of a planar shape that projects images by using light acquired by dividing light rays; an optical device of a planar shape that outputs incident light incident from a first face from a second face; and a supporting unit that supports at least one of the projector and the optical device to be in a first state or a second state in an orthogonal three-dimensional coordinate system. The optical device outputs incident light incident from a first point on a projection surface of the projector to a second point having plane symmetry with respect to a plane of the optical device as a reference.

Claims (10)

1. A stereoscopic display apparatus comprising:

a projector of a planar shape that divides light rays into two or more directions and projects two or more images by using the divided light;

an optical device of a planar shape that outputs incident light incident from a first face from a second face; and

an image processing unit that interchanges two or more images projected by the projector with each other in an arbitrary area and inputs resultant images to the projector,

wherein the optical device outputs incident light incident from a first point on a projection surface of the projector to a second point having plane symmetry with respect to a plane of the optical device as a reference, and projects in the air a floating image corresponding to two images from the projector, and

wherein the image processing unit produces two or more images including a portion without parallax, the portion corresponding to an end portion of the floating image, and inputs the two or more images including the portion without parallax to the projector.

2. The stereoscopic display apparatus according to claim 1 , wherein the images without parallax produced by the image processing unit are single-color images.

3. The stereoscopic display apparatus according to claim 2 , wherein the single-color images are black images.

4. The stereoscopic display apparatus according to claim 1 , further comprising a position detecting unit that detects two viewpoint positions of an observer,

wherein the position detection unit calculates the arbitrary area based on a distance between the second point and an intermediate point for the two viewpoint positions of the observer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2019
From: TIANMA JAPAN, LTD. (FORMERLY NLT TECHNOLOGIES, LTD.)
To: TIANMA MICROELECTRONICS CO., LTD.
Reel/Frame 050582/0869 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2019
From: MASUMURA, KAZUNORI; SATO, TETSUSHI; SHIGEMURA, KOJI
To: TIANMA JAPAN, LTD.
Reel/Frame 047943/0401 →