Three dimensional display unit and display method

• US 7,123,213 B2
• Filed: 04/02/2002
• Issued: 10/17/2006
• Est. Priority Date: 10/05/1995
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Hirakata, Yoshiharu, Teramoto, Satoshi, Koyama, Jun, Yamazaki, Shunpei
• Primary Examiner(s): Chow, Dennis-Doon
• Application Number:
  US10/114,815
• Publication Number:
  US 20020105483A1
• Time in Patent Office: 1,659 Days
• Field of Search: 345/7, 345/8, 345/87, 345/103, 345/5, 348/56, 348/57, 348/59, 348/51, 348/52, 348/55, 348/87, 349/5, 349/8, 349/9
• US Class Current: 345/7
• CPC Class Codes: G02B 30/24 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
• CPC Class Codes: G02B 30/25 using polarisation techniques
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3666 with the matrix divided into sections
• CPC Class Codes: H04N 13/15 for colour aspects of image signals
• CPC Class Codes: H04N 13/167 Synchronising or controlling image signals
• CPC Class Codes: H04N 13/189 Recording image signals; Reproducing recorded image signals
• CPC Class Codes: H04N 13/194 Transmission of image signals
• CPC Class Codes: H04N 13/286 having separate monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/30 Image reproducers optical systems for producing stereoscopic or other three-dimensional effects G02B30/00
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/337 using polarisation multiplexing
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 13/349 Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for viewing without the aid of special glasses using fly-eye lenses H04N13/307
• CPC Class Codes: H04N 13/354 for displaying sequentially
• CPC Class Codes: H04N 13/363 using image projection screens volumetric display H04N13/388
• CPC Class Codes: H04N 13/368 : for two or more viewers
• CPC Class Codes: H04N 13/398 : Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 19/597 : specially adapted for multi-view video sequence encoding
• CPC Class Codes: H04N 2013/403 : the images being monoscopic

Abstract

In a structure in which six active matrix regions 103 to 108 are integrated on one glass substrate, horizontal scanning control circuits 101 and 102 are commonly disposed for the respective active matrix regions 103 to 105 and 106 to 108. Then, the horizontal scanning control circuits 101 and 102 are operated at different timings, and images formed by the active matrix regions 103 to 105 and 106 to 108 are synthesized and projected. With this operation, the horizontal scanning frequency required for one horizontal scanning control circuit can be made half of the horizontal scanning frequency of the display screen.

Claims

1. A projector having a liquid crystal display device comprising:

a light source;

a screen for providing a first image having a first polarizing state and a second image having a second polarizing state;

a first optical system giving the first polarizing state to the first image between the light source and the screen;

a second optical system giving the second polarizing state to the second image between the light source and the screen; and

a liquid crystal between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image; and

a second driving region conducting horizontal scanning control of said second active matrix region,

wherein said first active matrix region, said first driving region, said second matrix region and said second driving region are formed on said substrate.

2. A projector having a liquid crystal display device comprising:

a light source;

a screen for providing a first image having a first polarizing state and a second image having a second polarizing state;

a first optical system giving the first polarizing state to the first image between the light source and the screen;

a second optical system giving the second polarizing state to the second image between the light source and the screen; and

a liquid crystal panel between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image;

a second driving region conducting horizontal scanning control of said second active matrix region; and

a third driving region conducting vertical scanning control of said first and second active matrix regions,

wherein said first active matrix region, said first driving region, said second matrix region, said second driving region and said third driving region are formed on said substrate.

3. A projector having a liquid crystal display device comprising:

a light source;

a screen for providing a first image having a first polarizing state and a second image having a second polarizing state;

a first optical system giving the first polarizing state to the first image between the light source and the screen;

a second optical system giving the second polarizing state to the second image between the light source and the screen; and

a liquid crystal panel between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image; and

a second driving region conducting horizontal scanning control of said second active matrix region,

wherein said first active matrix region, said first driving region, said second matrix region and said second driving region are formed on said substrate, and

wherein the first image and the second image are viewed on a right eye and a left eye of a viewer, respectively.

4. A projector according to claim 3, wherein display of the first image and display of the second image are alternated every 1/60 seconds or shorter.

5. A projector comprising:

a light source;

a mirror reflecting a first image and a second image;

a first optical system giving a first polarizing state to the first image between the light source and the mirror;

a second optical system giving a second polarizing state to the second image between the light source and the mirror;

a screen for providing the first image having the first polarizing state and the second image having the second polarizing state; and

a liquid crystal panel between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image; and

a second driving region conducting horizontal scanning control of said second active matrix region,

wherein said first active matrix region, said first driving region, said second matrix region and said second driving region are formed on said substrate, and

wherein the first image and the second image overlap on the screen.

6. A projector comprising:

a light source;

a mirror reflecting a first image and a second image;

a first optical system giving a first polarizing state to the first image between the light source and the mirror;

a second optical system giving a second polarizing state to the second image between the light source and the mirror;

a screen for providing the first image having the first polarizing state and the second image having the second polarizing state; and

a liquid crystal panel between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image; and

a second driving region conducting horizontal scanning control of said second active matrix region,

a third driving region conducting vertical scanning control of said first and second active matrix regions,

wherein said first active matrix region, said first driving region, said second matrix region, said second driving region and said third driving region are formed on said substrate, and

wherein the first image and the second image overlap on the screen.

7. A projector comprising:

a light source;

a mirror reflecting a first image and a second image;

a first optical system giving a first polarizing state to the first image between the light source and the mirror;

a second optical system giving a second polarizing state to the second image between the light source and the mirror;

a screen for providing the first image having the first polarizing state and the second image having the second polarizing state; and

a liquid crystal panel between the light source and the first and second optical systems,

wherein the liquid crystal panel comprises;

a substrate;

a first active matrix region for the first image;

a first driving region conducting horizontal scanning control of said first active matrix region;

a second active matrix region for the second image; and

a second driving region conducting horizontal scanning control of said second active matrix region,

wherein said first active matrix region, said first driving region, said second matrix region and said second driving region are fonned on said substrate,

wherein the first image and the second image are viewed on a right eye and a left eye of a viewer, respectively, and

wherein the first image and the second image overlap on the screen.