Claims
- 1. A video display system comprising:
- an electrically insulative substrate having a top surface, a bottom surface, and an M.times.N array of holes between said top surface and said bottom surface, said M.times.N array of holes corresponding to an M.times.N array of pixels;
- a plurality of piezoelectric members, each of said members being disposed on said top surface adjacent to a respective one of said holes, each of said piezoelectric members having a first metallized face and a second metallized face;
- a plurality of mirrors, each of said mirrors being mounted to a respective one of said piezoelectric members;
- an integrated circuit electronic switch matrix mounted to said bottom surface said switch matrix comprising an M.times.N array of switch cells and a metallization disposed on said matrix adjacent said bottom surface of said substrate;
- means for electrically connecting said first metallized face of each of said piezoelectric members to said switch matrix through said holes; and
- a metal plating disposed in each of said holes in intimate electrical contact with said metallization on said switch matrix and said first face of each said piezoelectric members;
- said switch matrix developing a plurality of electrical signals, each of said signals corresponding to an intensity of a respective one of said pixels, each of said electrical signals being applied to said first face of a respective one of said piezoelectric members, each of said piezoelectric members in response thereto changing an orientation of one of said mirrors mounted thereto, each of said mirrors thereby effecting modulation of light intensity reflected therefrom wherein the modulated light intensity from each of said mirrors corresponds to one of said pixels.
- 2. A video display system as set forth in claim 1 wherein said substrate is a ceramic substrate.
- 3. A video display system as set forth in claim 1 wherein:
- said electronic switch matrix is assembled into a plurality of modular units, each of said units having a top part, a bottom part and four side parts, said bottom part having a plurality of electrical contacts providing said electrically connecting means between said piezoelectric members and said switch matrix, and said side portions having a plurality of electrical interconnection leads carrying said luminance signal, said M outputs and said N outputs between said units; and
- said units comprising a fixed matrix size wherein said units can be further linked forming larger matrix sizes.
- 4. A video display system as set forth in claim 3 wherein said fixed matrix size is 8.times.8.
- 5. In a video display system including a source of light energy, an electrically insulative substrate having a top surface and a bottom surface, a plurality of piezoelectric members disposed in an M.times.N array on said top surface, a plurality of mirrors, at least one aperture, and means for focusing and projecting light energy, each of said piezoelectric members having a first metallized face and a second metallized face, said second metallized face of each of said piezoelectric members being commonly electrically interconnected, each of said mirrors being attached to a respective one of said piezoelectric members, wherein said light energy incident on one of said mirrors is reflected in a direction toward said aperture and further wherein a voltage applied to said first metallized of said respective one of said piezoelectric members deforms said respective one of said piezoelectric members to change the orientation of said mirror with respect to said light energy incident thereon to change the path of reflected light energy from said mirror, thereby modulating the intensity of said light energy emanating form said aperture, said focusing and projecting means utilizing said light energy emanating from said aperture, the improvement comprising:
- a plurality of holes disposed in an M.times.N array between said top surface and said bottom surface of said substrate, each of said holes being associated with a respective on of said piezoelectric members;
- an electrically conductive metal plating formed in each of said holes extending partially onto each of said top surface and said bottom surface of said substrate, said metal plating in one of said holes being electrically isolated form said metal plating in each other of said holes, said first metallized face of each of said piezoelectric members being in intimate electrical contact with said metal plating in each associated respective one of said holes;
- an integrated circuit electronic switch matrix mounted to said bottom surface said switch matrix comprising an M.times.N array of switch cells to develop said voltage for application to said first metallized face of a respective one of said piezoelectric members, and a metallization on said matrix to conduct said voltage developed by each of said switch cells for application to said first metallized face of a respective one said piezoelectric members, said metallization being disposed in intimate electrical contact with said metal plating in each of said holes.
Parent Case Info
This application is a continuation of application Ser. No. 08/173,670 filed on Dec. 22, 1993, now abandoned which is continuation of application Ser. No. 07/791,499 filed Nov. 12, 1991, now abandoned, which is a divisional of application Ser. No. 07/504,124 filed Apr. 3, 1990, now U.S. Pat. No. 5,052,216.
US Referenced Citations (8)
Divisions (1)
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Date |
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504124 |
Apr 1990 |
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Continuations (2)
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173670 |
Dec 1993 |
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791499 |
Nov 1991 |
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