Photostructured imaging display panels

• US 20090073087A1
• Filed: 09/19/2007
• Published: 03/19/2009
• Est. Priority Date: 09/19/2007
• Status: Active Grant

• Current Assignee: Aerospace Corporation
• Original Assignee: Aerospace Corporation
• Inventors: Janson, Siegfried W., Abraham, Margaret
• Granted Patent: US 8,068,278 B2
• Time in Patent Office: Days
• US Class Current: 345/55
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/32 characterised by the geometry of the parallax barriers, e.g. staggered barriers, slanted parallax arrays or parallax arrays of varying shape or size
• CPC Class Codes: G02B 30/36 using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: Y10T 428/24314 Slit or elongated

Abstract

Photostructurable glass and ceramic materials in slabs are processed into pixelized screens having opaque baffles therein for defining therebetween light pipes in the material through which pixel light is passed and directed with limited fields of view and for stereoscopic viewing, the screens being made using various manufacturing processes included focused UV light exposure and baking of the photostructurable material.

Claims

1. A screen for viewing an image, the screen comprising,

baffles disposed in a material, the material is a photostructurable material, the material is a plane of material, the baffles being opaque portions of the material, and

pipes disposed in the material, the pipes being optically transmissive portions of the material, the baffles defining the pipes, the pipes serving as light pipes for receiving and passing the image through the screen within a field of field, the field of view being defined by baffle geometry.

2. The screen of claim 1 wherein,

the photostructurable material is a photocerams material.

3. The screen of claim 1 wherein,

the photostructurable material is selected from a group consisting of structurable glasses and ceramics.

4. The screen of claim 1 wherein,

the baffles are made by exposing the material to focused masked UV light.

5. The screen of claim 1 wherein,

the screen comprises a row of the pipes defined by respective row of baffles,

each of the baffles in the row of baffles have respective angles,

the angles incrementally extend between plus and minus angle θ

, and

the angle θ

limits the field of view.

6. The screen of claim 1 wherein,

the screen comprises a row of the pipes defined by respective row of baffles,

each of the baffles in the row of baffles have respective angles,

the angles incrementally extend between plus and minus an angle θ

,

the angle θ

limits the field of view, and

the baffles are fabricated by a process comprising the step of focusing UV light through a mask having mask openings aligned to the baffles for defining the angles.

7. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light emitting pixels, the pixels being respectively aligned to the baffles.

8. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, the pixels being red light, yellow light, and blue light emitting pixels.

9. The screen of claim 1 wherein,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, the pixels comprising red emitters, yellow emitters, and blue emitters for respectively emitting red light, yellow light, and blue light.

10. The screen of claim 1 wherein,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, the pixels communicating light by emitting or transmitting light.

11. The screen of claim 1 wherein,

the baffles extend horizontally across a width of the material,

the baffles extend vertically across a height of the material,

the baffles extend in depth a thickness of the material, and

the baffles defining the pipes in a row and column raster grid of light pipes.

12. The screen of claim 1 wherein,

the baffles extend horizontally across a width of the material,

the baffles extend vertically across a height of the material,

the baffles extend in depth a partial thickness of the material, and

the baffles defining the pipes in a row and column raster grid of light pipes.

13. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally a width of the material,

the baffles extend vertically a height of the material,

the baffles extend in depth a thickness of the material, and

the baffles defining the pipes in a row and column raster grid of pipes.

14. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally across a width of the material,

the baffles extend vertically across a height of the material,

the baffles extend in depth a thickness of the material,

the baffles defining the pipes in a row and column raster grid of pipes, and

the baffles extend in depth at angles.

15. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally across a width of the material,

the baffles extend vertically across a height of the material,

the baffles extend in depth a thickness of the material,

the baffles defining the pipes in a row and column raster grid of pipes,

the baffles extend in depth at angles, and

the angles of the baffles in a first row of pipes are different than angles of the baffles in a second row of pipes.

16. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light emitting pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally a width of the material,

the baffles extend vertically a height of the material,

the baffles extend in depth a thickness of the material,

the baffles defining the pipes in a row and column raster grid of pipes,

the baffles extend in depth at angles, and

the angles of the baffles in a first row of pipes are different than angles of the baffles in a second row of pipes for binocular stereoscopic viewing.

17. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally across a width of the material,

the baffles extend vertically across a height of the material,

the baffles extend in depth a thickness of the material,

the baffles defining the pipes in a row and column raster grid of pipes in rows of pipes and columns of pipes,

the baffles extend in depth at angles,

the angles of the baffles in even rows of pipes are different than angles of the baffles in odd row of pipes,

the even row pipes for viewing from a first direction, and

the odd row pipes for viewing from a second direction.

18. The screen of claim 1 further comprising,

a pixel plane for generating the image, the pixel plane having light communicating pixels, the pixels being respectively aligned to the baffles, wherein,

the baffles extend horizontally a width of the material,

the baffles extend vertically a height of the material,

the baffles extend in depth a thickness of the material,

the baffles defining the pipes in a row and column raster grid of pipes in rows of pipes and columns of pipes,

the baffles extend in depth at angles,

the angles of the baffles in even rows of pipes are different than angles of the baffles in odd row of pipes,

the even rows of pipes for viewing from a first direction,

the odd rows of pipes for viewing from a second direction, and

the even rows of pipes and the odd rows of pipes provide for stereoscopic viewing.