IP Library Granted Patent US 8,139,084
Granted Patent B2
US 8,139,084 · App. 12/294,277 · Granted Mar 20, 2012

Image display device and method of displaying image

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Quick Facts
Patent No.
US 8,139,084
App. No.
12/294,277
Granted
Mar 20, 2012
Kind
B2
Abstract

Under an LCD panel ( 241 ) a prism sheet ( 242 ) is provided, and a light beam is emitted in a first direction ( 243 ) at a timing that a first LED group ( 247 ) is turned on, so that an eye ( 202 L) located at this position can view a first image ( 211 ). When a second LED group ( 248 ) is turned on the light beam is emitted in a second direction ( 244 ), so that the eye ( 202 R) located at this position can view a second image ( 212 ). These images ( 211, 212 ) are combined to thereby constitute a larger image.

Claims (30)

1. An image display device comprising:

a display panel that displays a sheet of image;

a spatial region setting unit that defines a plurality of spatial regions where an image displayed on said display panel can be visually recognized from mutually different spatial positions;

an image splitter that splits a piece of image having a larger display area than said sheet of image corresponding to a display area of said display panel, into a plurality of sheets of images respectively corresponding to each of said plurality of spatial regions; and

an image display unit that causes said display panel to splitly display said plurality of sheets of images in different display directions, such that each of said plurality of sheets of images split by said image splitter can be visually recognized from the corresponding one of said mutually different spatial positions, further comprising:

an inclination detector that detects an inclination of said display panel;

wherein said image display unit displays one of said plurality of sheets of images in correlation with said spatial region, according to a detection result provided by said inclination detector.

2. The image display device according to claim 1 , wherein said image display unit causes said display panel to alternately display each of said plurality of sheets of images formed by splitting said piece of image, at a switching cycle that creates an afterimage in said mutually different spatial positions.

3. The image display device according to claim 2 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

4. The image display device according to claim 1 , wherein said spatial region setting unit includes a selective light emitting unit that selectively emits light in a plurality of different directions, and a light path setting unit that sets a plurality of directions where a content on said display panel can be viewed, according to a direction of said light emitted by said selective light emitting unit.

5. The image display device according to claim 1 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

6. The image display device according to claim 1 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

7. An image display device comprising:

a display panel that displays a sheet of image;

a spatial region setting unit that defines a plurality of spatial regions where an, image displayed on said display panel can be visually recognized from mutually different spatial positions;

an image splitter that splits a piece of image having a larger display area than said sheet of image corresponding to a display area of said display panel, into a plurality of sheets of images respectively corresponding to each of said plurality of spatial regions; and

an image display unit that causes said display panel to splitly display said plurality of sheets of images in different display directions, such that each of said plurality of sheets of images split by said image splitter can be visually recognized from the corresponding one of said mutually different spatial positions, further comprising:

a horizontal position detector that detects a horizontal position of said display panel;

wherein said image display unit displays one of said plurality of sheets of images in correlation with said spatial region, according to a detection result provided by said horizontal position detector.

8. The image display device according to claim 7 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

9. The image display device according to claim 7 , wherein said image display unit causes said display panel to alternately display each of said plurality of sheets of images formed by splitting said piece of image, at a switching cycle that creates an afterimage in said mutually different spatial positions.

10. The image display device according to claim 9 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

11. The image display device according to claim 7 , wherein said spatial region setting unit includes a selective light emitting unit that selectively emits light in a plurality of different directions, and a light path setting unit that sets a plurality of directions where a content on said display panel can be viewed, according to a direction of said light emitted by said selective light emitting unit.

12. The image display device according to claim 7 , further comprising:

a light emitting diode that alternatively emits light along different paths, and a prism sheet that outputs light in one of a plurality of directions according to an incident angle.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2014
From: NEC CORPORATION
To: LENOVO INNOVATIONS LIMITED (HONG KONG)
Reel/Frame 033720/0767 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2008
From: KURODA, TOMONORI
To: NEC CORPORATION
Reel/Frame 021577/0916 →