Device relating to electro-optical image display

• US 4,613,210 A
• Filed: 02/14/1986
• Issued: 09/23/1986
• Est. Priority Date: 04/02/1982
• Status: Expired due to Fees

• Current Assignee: Jean Pollard
• Original Assignee: Jean Pollard
• Inventors: Pollard, Jean
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/829,847
• Time in Patent Office: 221 Days
• Field of Search: 350/334, 350/356, 350/388, 350/127-128, 350/167, 350/452, 350/96.25-96.27
• US Class Current: 359/277
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 3/14 by means of electrically scanned solid-state devices for picture generation H04N25/00

Abstract

The electro-optical image display device according to the invention comprises one or more identical integrated circuits connected to a control printed circuit, each integrated circuit comprising a semiconductor and transducer chip protected by a transparent window; every integrated circuit cooperates with an image expander constituted by a bundle of optical fibers which, on the object side, are virtually contiguous and applied by their ends against the window of the integrated circuit whereas, on the image side, said fibers are kept regularly spaced apart; the image expanders cooperate with a recomposer in plastic material which magnifies at least partly the image-pixels and adjust them on the borderline of the expanders.

Claims

1. An electro-optic thin screen image display device comprising:

at least one module consisting of a monolithic standard commercial size silicon micro-chip integrated circuit having a surface area in the order of 50 sq. mm. and having on one side a pattern array matrix of electrically, energizable integral contact surfaces which constitute quasi-contiguous object pixels;

an electro-optical transducer layer disposed in contact with said side of said chip;

a transparent window having a thickness in the order of 50 microns covering said transducer layer;

a bundle of plastic optic fibers, each of which has an object end and an image end;

first means for fixedly securing the object end of each fiber of said bundle adjacent to said transparent window and in a predetermined location with respect to a preselected object pixel on said chip;

second means for fixedly securing the image end of each fiber of said bundle in a predetermined stacked position which corresponds to the position of the object end of the same fiber in relation to other fibers of said bundle, but in expanded format; and

recomposer means formed of plastic composition for receiving the predisposed stacked image ends of said fibers and having a micro-pyramidal prolongation for each fiber, for enlarging the image area of each said image end of each of said fibers, to form a virtually contiguous regular array of image pixels.

2. A display device as claimed in claim 1, wherein said recomposer means serves to position a plurality of said modules in precise optical juxtaposition to form a visually apparent uninterrupted continuous display panel configuration.

3. A display device as claimed in claim 2, wherein said modules are arranged in preselected planar configuration.

4. A display device as claimed in claim 2, wherein said modules are arranged in a preselected non-planar configuration.

5. A display device as claimed in claim 1, wherein:

said pyramidal prolongations are imbedded in said recomposer means and are divergent in area from the object end to the image end, and which have a predetermined light refraction index which is greater than that of said recomposer means.

6. A display device as claimed in claim 5, wherein each of said micro-pyramidal prolongations has a light refraction index that varies axially therein to improve the visual angle of acceptance.

7. A display device as claimed in claim 5, wherein said image face of each said micro-pyramidal prolongations is provided with micro-imprints to improve the angle of acceptance of light passing through the said micro-pyramid and to reduce reflection.

8. A display device as claimed in claim 1, comprising printed circuit means disposed adjacent the back side of said integrated circuits to provide each module with necessary electrical signals.