Three dimensional LCD monitor display

• US 9,325,977 B2
• Filed: 01/25/2012
• Issued: 04/26/2016
• Est. Priority Date: 01/25/2012
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: DeCusatis, Casimer M.
• Primary Examiner(s): Yodichkas, Aneeta
• Application Number:
  US13/357,707
• Publication Number:
  US 20130187904A1
• Time in Patent Office: 1,553 Days
• US Class Current: 1/1
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/337 using polarisation multiplexing

Abstract

A pixel matrix located on a liquid crystal display (LCD) that includes a plurality of first pixels having a first polarization; a plurality of second pixels having a second polarization; and a plurality of electrodes configured to activate the first pixels followed by the second pixels, the activating at twice a frame rate of the LCD.

Claims

1. A pixel matrix located on a liquid crystal display (LCD) for projecting three dimensional (3D) images including a first image and a second image, the pixel matrix comprising:

a plurality of first pixels having a first polarization, the plurality of first pixels comprising liquid crystal molecules of a plurality of colors;

a plurality of second pixels having a second polarization, the plurality of second pixels comprising liquid crystal molecules of the plurality of colors, and the plurality of first pixels and the plurality of second pixels arranged in a single plane in the pixel matrix, wherein each of the plurality of first pixels is paired and arranged directly adjacent to one of the plurality of second pixels to define a pair of orthogonally polarized pixels, each of the pixels in each of the pair of orthogonally polarized pixels being the same color, wherein each pair of orthogonally polarized pixels is not positioned directly adjacent another pair of orthogonally polarized pixels of the same color, wherein at least one of the plurality of second pixels being paired with at least one of the plurality of first pixels; and

a plurality of electrodes including vertical electrodes and horizontal electrodes configured to activate the first pixels followed by the second pixels, the activating at twice a frame rate of the LCD,

wherein the pixel matrix is configured for;

projecting the first image, the projecting the first image comprising receiving a first light from a light source and using at least one of the vertical electrodes and at least one of the horizontal electrodes that intersect with each other and that are disposed along at least one edge of at least one of the plurality of first pixels to activate at least one of the plurality of first pixels; and

projecting the second image, the projecting the second image comprising receiving a second light from the light source and using at least one of the vertical electrodes and at least one of the horizontal electrodes that intersect with each other and that are disposed along at least one edge of at least one of the plurality of second pixels to activate at least one of the plurality of second pixels.

2. The pixel matrix according to claim 1, wherein the pixel matrix is a passive matrix.

3. The pixel matrix according to claim 1, wherein the pixel matrix is an active matrix.

4. The pixel matrix of claim 1, wherein the first polarization is orthogonal to the second polarization.

5. The pixel matrix of claim 1, wherein the 3D image is viewable with passive eyewear.

6. A liquid crystal display (LCD) for projecting three dimensional (3D) images including a first image and a second image, the LCD comprising:

a light source;

a pixel matrix comprising a plurality of pixels, each pixel characterized by a polarization, the plurality of pixels including first pixels having a first polarization and second pixels having a second polarization, the plurality of the first pixels comprising liquid crystal molecules of a plurality of colors and the plurality of second pixels comprising pixels comprising liquid crystal molecules of the plurality of colors, the plurality of first pixels and the plurality of second pixels arranged in a single plane in the pixel matrix, wherein each of the plurality of first pixels is paired and arranged directly adjacent to one of the plurality of second pixels to define a pair of orthogonally polarized pixels, each of the pixels in each of the pair of orthogonally polarized pixels being the same color, wherein each pair of orthogonally polarized pixels is not positioned directly adjacent another pair of orthogonally polarized pixels of the same color, wherein at least one of the plurality of second pixels being paired with at least one of the plurality of first pixels; and

a plurality of electrodes including vertical electrodes and horizontal electrodes configured for applying a voltage to the plurality of pixels, wherein applying the voltage to a pixel changes the polarization of the pixel,

wherein the LCD is configured for;

projecting the first image, the projecting the first image comprising emitting a first light from the light source and applying the voltage to at least one of the plurality of first pixels using at least one of the vertical electrodes and at least one of the horizontal electrodes that intersect with each other and that are disposed along at least one edge of the at least one of the plurality of first pixels; and

projecting the second image, the projecting the second image comprising emitting a second light from the light source and applying the voltage to at least one of the plurality of second pixels, using at least one of the vertical electrodes and at least one of the horizontal electrodes that intersect with each other and that are disposed along at least one edge of the at least one of the plurality of second pixels.

7. The LCD of claim 6, wherein the first polarization is orthogonal to the second polarization.

8. The LCD of claim 6, wherein each of the plurality of pixels comprises a single liquid crystal molecule.

9. The LCD of claim 6, wherein each of the plurality of pixels comprises multiple liquid crystal molecules.

10. The LCD of claim 6, wherein the 3D images are viewable with passive eyewear.