EP0147027A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data terminal
Assignee: International Standard Electric Corp
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Filing: 1984-10-26
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Granted: —
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Expires: 2004-10-26
Abstract
Abstract A data terminal uses as its display device a liquid crystal display formed on one face of a thin silicon slice. The slice has formed in it the controlling circuitry, based on MOS devices, for the display and some at least of the associated circuitry. The control means also includes a microprocessor with its associated memories and interfaces.
Inventors
- 👤 William Alden Crossland
- 👤 Jack Rowland Peters
- 👤 Robert Walter Alister Scarr
- 👤 Peter William Ross
- 👤 Frank Astorino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 01:25
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/147; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
A data terminal provided with a visual display unit (VDU), characterised in that the VDU is a liquid crystal display device (4, 14) formed on a silicon slice, drive circuitry for the display device and some at least of the other associated circuitry thereof are formed on the same silicon slice as is the display, control of the terminal is effected by a microprocessor having associated with it memory means, the memory means includes read-only memory (ROM) which contains, when the terminal is in use, programmes for the microprocessor and other relatively permanent data associated with the operation of the terminal, the memory means also includes random access memory (RAM) which contains, when the terminal is in use, non-permanent data such as data to be displayed by the VDU, and the terminal also has inputs via which the data to be displayed and other non-permanent data are received.
Claim 2
Dependent Claim
148 words
A data terminal provided with a visual display unit (VDU), characterised in that the VDU is a liquid crystal display device (4, 14) formed on a silicon slice, drive circuitry for the display device and some at least of the other associated circuitry thereof are formed on the same silicon slice as is the display, control of the terminal is effected by a microprocessor having associated with it memory means, the memory means includes read-only memory (ROM) which contains, when the terminal is in use, programmes for the microprocessor and other relatively permanent data associated with the operation of the terminal, the memory means also includes random access memory (RAM) which contains, when the terminal is in use, non-permanent data such as data to be displayed by the VDU, and the terminal also has inputs via which the data to be displayed and other non-permanent data are received.
Claim 3
Dependent Claim
38 words
A data terminal as claimed in claim 1, characterised in that the terminal is mounted on a strap or bracelet which fits round a user's wrist, and the strap or bracelet also carries circuit elements and a battery.
Claim 4
Dependent Claim
39 words
A data terminal as claimed in claim 1, characterised in that the data terminal is a hand-held device in which the display (4) is hingedly supported, and the terminal has a Fresnel magnifier (3) which is also hingedly supported.
Claim 5
Dependent Claim
26 words
A data terminal as claimed in claim 1, 2 or 3, characterised in that the device has a light pen (5) for the input of information.
Claim 6
Dependent Claim
30 words
A data terminal as claimed in claim 1, characterised in that the terminal is part of a flat screen oscilloscope of which the liquid crystal display (14) is the screen.
References Cited (Backward Citations)
No citation records indexed.
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