Device for high resolution recording of liquid crystal display images

• US 4,782,348 A
• Filed: 11/30/1987
• Issued: 11/01/1988
• Est. Priority Date: 07/18/1986
• Status: Expired due to Fees

• Current Assignee: George L. Siegner
• Original Assignee: George L. Siegner
• Inventors: Siegner, George L.
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): REINHART, MARK J
• Application Number:
  US07/126,565
• Time in Patent Office: 337 Days
• Field of Search: 346/107 R, 350/334, 350/345, 350/352
• US Class Current: 347/224
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G03B 27/22 by stretching over a curved surface

Abstract

A photosensitive recording medium is arranged in contact with the outside surface of a curved liquid crystal display cell forming a partial or complete cylinder. Both the liquid crystal display cell and the photosensitive member are arranged concentric to the axis of a linear radiation source. The linear radiation source is segmented by a number of nonreflective fins along its length. By controlling the radius of the cylinder or cylindrical section, the thickness of the liquid crystal display cell, the diameter of the linear radiation source and the spacing and depth of the segmentation fins surrounding the radiation source, a projection of the image displayed on the liquid crystal display cell may be obtained and recorded on the surface of the photosensitive medium with sufficient resolution to enable high resolution recording of the displayed information.

Claims

1. A recording device for generating and reproducing a presentation of visual information, comprising:

a selectively operable radiation-transmissive liquid crystal display cell in the form of a partial or full cylinder having inner and outer coaxial surfaces centered along an axis spaced inwardly from the display;

a radiation sensitive recording sheet having an inner surface wrapped about the outer surface of the liquid crystal display cell;

radiation means located inwardly of the liquid crystal display cell and coaxially centered along the axis for directing radiation through the liquid crystal display to the inner surface of recording sheet; and

axial columnating means interposed between the radiation means and the liquid crystal display cell for limiting dispersion of radiation directed onto the sheet in a dimension parallel to the axis.

2. The recording device of claim 1 further comprising:

retaining means for holding the recording sheet in direct stationary engagement with the outer surface of the liquid crystal display cell.

3. The recording device of claim 1 wherein the radiation means comprises:

a tubular source of radiation positioned at a stationary position coaxially along the axis;

and control means operably connected to the radiation means and to the liquid crystal display cell for selectively causing them to be operable to expose the recording sheet.

4. The recording device of claim 1 wherein the liquid crystal display cell further comprises:

support means for maintaining the liquid crystal display cell in a cylindrical plane centered along the axis.

5. The recording device of claim 1 wherein the liquid crystal display cell comprises a matrix of dots or pixels that can be activated to present an array of data to be transferred onto the recording sheet.

6. The recording device of claim 1 wherein the radiation means comprises a tube having cylindrical radiating surface coextensive in length to that of the liquid crystal display cell.

7. The recording device of claim 1 wherein the radiation means comprises a tube having cylindrical radiating surface coextensive in length to that of the liquid crystal display cell;

and

radial means interposed between the tube and the liquid crystal display cell for limiting the axial angle of radiation directed to the recording sheet.

8. The recording device of claim 1 wherein the radiation means comprises a tube having cylindrical radiating surface coextensive in length to that of the liquid crystal display cell;

a plurality of radial circular disks arranged coaxially about the tube in axially spaced locations to limit the axial angle of radiation directed to the recording sheet.

9. The recording device of claim 1, further comprising:

control means operably connected to the radiation means for selectively causing the radiation means to be operable for a time sufficient to expose the recording sheet through the liquid crystal display cell.

10. The recording device of claim 1, further comprising:

control means operably connected to the liquid crystal display cell for selectively modulating the liquid crystal display cell to expose the recording sheet to radiation directed to it from the radiation means.

11. A printer comprising:

a selectively operable radiation-transmissive liquid crystal display cell in the form of a partial or full cylinder having inner and outer coaxial surfaces centered along an axis spaced inwardly from the display;

a radiation sensitive recording sheet having an inner surface wrapped about the outer surface of the liquid crystal display cell; and

radiation means located inwardly of the liquid crystal display cell and coaxially centered along the axis for selectively directing radiation through the liquid crystal display to the inner surface of recording sheet;

axial columnating means interposed between the radiation means and the liquid crystal display cell for limiting dispersion of radiation directed onto the sheet in a dimension parallel to the axis; and

controller means operably connected to the liquid crystal display cell and to the radiation means for selectively maintaining a static presentation of data on the liquid crystal display cell as the radiation means is actuated.

12. The printer of claim 11 further comprising:

input means for directing information pertaining to a desired presentation of data to the controller means.

13. The printer of claim 11 further comprising:

portable electrical power supply means operably connected to the controller means and to the radiation means.