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Title
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Preliminary Development of a Solid-State Matrix Display
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Date
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1967
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Index Abstract
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Coming Soon
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Photo Quality
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Complete
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Report Number
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AFFDL TR 66-5
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Creator
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Lechner, B. J.
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Corporate Author
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Radio Corporation of America
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Laboratory
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Air Force Flight Dynamics Laboratory
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Extent
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150
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NTRL Accession Number
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AD649553
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Identifier
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AD0649553
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Access Rights
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Distribution of this document is unlimited
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Distribution Classification
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1
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Contract
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AF 33(615)-1493
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DoD Project
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6190
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DoD Task
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619009
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DTIC Record Exists
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No
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Distribution Change Authority Correspondence
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None
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Abstract
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The use of ferroelectric transchargers as storage and control elements in an electroluminescent matrix display is reported. Research on display panel circuitry led to control circuits useful for solid-state matrix display. In these circuits, ferroelectric elements provide analog storage and control energization of electroluminescent cells in accordance with stored analog signals. The ferroelectric, in conjunction with a diode, provides a selection threshold which permits the element to be addressed in a matrix by voltage coincidence. The new circuits give greatly improved brightness and contrast compared with previous ferroelectric control circuits. Transcharger circuits with logic capability have also been developed; such circuits are especially useful for bar graph, moving pointer, and similar displays. Three experimental model displays demonstrated brightness as high as 48 ft-L; contrast ratio in excess of 100:1; geometric resolution as great as 10-elements per in.; capability for producing a gray scale; and a frame rate which allows continuity of motion without blurring or flicker. The performance of these models demonstrates the potential of using ferroelectric control circuits and electroluminescent elements for high-brightness, high-resolution, all solid-state matrix displays.
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Report Availability
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Full text available
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Date Issued
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1967-01
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Provenance
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AFRL/VACA
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Type
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report
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Format
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1 online resource
AFFDLTR66-005.pdf