GB1405048A - Calculator construction and method for making calculator - Google Patents
Calculator construction and method for making calculatorInfo
- Publication number
- GB1405048A GB1405048A GB4671273A GB4671273A GB1405048A GB 1405048 A GB1405048 A GB 1405048A GB 4671273 A GB4671273 A GB 4671273A GB 4671273 A GB4671273 A GB 4671273A GB 1405048 A GB1405048 A GB 1405048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substrate
- electrodes
- keyboard
- calculator
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/034—Separate snap action
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/024—Packing between substrate and membrane
- H01H2229/028—Adhesive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/034—Positioning of layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Calculators And Similar Devices (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
1405048 Calculators SHARP K K 5 Oct 1973 [6 Oct 1972 24 April 1973] 46712/73 Heading G4A [Also in Division B6] A calculator comprises a keyboard (4, Fig. 1, not shown) and a display unit (2) each including a plurality of sets of electrodes some of which are formed, together with a computation unit (3), directly on a common substrate (1). As described the substrate 1 which is made of dielectric material is encased in a plastics housing (5) with a hood (8) covering the display area, a power supply to the calculator being- switched on when the hood is opened. Keyboard.-The keyboard comprises a plurality of pairs of comb shaped electrodes 31 (Fig. 3) (one for each key) formed on one surface B of substrate 1 (made of for example glass, ceramics or plastics). A rubber plate 45 is adhered to the surface B except at dome shaped projections 46<SP>1</SP> which overlie the electrodes 31 (Fig. 5, not shown). The plate 45 is covered by a reinforcing plate 49 and spring plate 48, the legs of keys 50 projecting through central holes in the spring plate so that when a key is actuated the associated projection 46<SP>1</SP> is depressed to shunt the pair of electrodes 31 associated with the keys. When the key is released it returns under snap action to its original position. Power is supplied to the keyboard from a board 39 making contact with terminals 33 via conductor pins 41. A multipin connector 36 couples signals from the keyboard via terminal 32 to computation unit 3 formed on the opposite side of the substrate. Display and computation unit.-On one surface (A, Fig. 2, not shown) of the substrate 1 is formed a liquid crystal display unit and a semiconductor computation unit. The display comprises electrodes (12) consisting of transparent conductive film on the substrate with electrode leads, a glass plate (21) having reflective electrodes (22) is separated from the substrate by a spacer so that a cavity for the liquid crystal composition is formed. Multilayer connections (51) are made between the display and circuit units, the latter comprising large scale integrated circuit elements (25, 25<SP>1</SP>) having signal leads (28) coated with solder for connection to previously plated solder layers (27) on the substrate 1. Fig. 6 (not shown) illustrates the procedure for making the calculator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10099672A JPS4958359A (en) | 1972-10-06 | 1972-10-06 | |
| JP4692973A JPS5430268B2 (en) | 1973-04-24 | 1973-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1405048A true GB1405048A (en) | 1975-09-03 |
Family
ID=26387092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4671273A Expired GB1405048A (en) | 1972-10-06 | 1973-10-05 | Calculator construction and method for making calculator |
Country Status (7)
| Country | Link |
|---|---|
| CA (1) | CA1038964A (en) |
| CH (1) | CH578213A5 (en) |
| FR (1) | FR2213538B1 (en) |
| GB (1) | GB1405048A (en) |
| IT (1) | IT996789B (en) |
| NL (1) | NL175373C (en) |
| SE (1) | SE396662B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264217A (en) | 1978-07-21 | 1981-04-28 | Sieno Duane D De | Text editor |
| FR2547939A1 (en) * | 1983-06-13 | 1984-12-28 | Hitachi Ltd | ELECTRONIC DISPLAY CONTROL PANEL, MOUNTED IN A VEHICLE |
| GB2191446A (en) * | 1986-06-11 | 1987-12-16 | Hewlett Packard Co | Stabilized molded rubber keyboards |
| GB2322008A (en) * | 1997-02-10 | 1998-08-12 | Nokia Mobile Phones Ltd | Switch |
-
1973
- 1973-10-03 SE SE7313440A patent/SE396662B/en unknown
- 1973-10-05 CA CA182,749A patent/CA1038964A/en not_active Expired
- 1973-10-05 CH CH1427273A patent/CH578213A5/xx not_active IP Right Cessation
- 1973-10-05 NL NL7313697A patent/NL175373C/en not_active IP Right Cessation
- 1973-10-05 GB GB4671273A patent/GB1405048A/en not_active Expired
- 1973-10-08 FR FR7335876A patent/FR2213538B1/fr not_active Expired
- 1973-10-08 IT IT6995473A patent/IT996789B/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264217A (en) | 1978-07-21 | 1981-04-28 | Sieno Duane D De | Text editor |
| FR2547939A1 (en) * | 1983-06-13 | 1984-12-28 | Hitachi Ltd | ELECTRONIC DISPLAY CONTROL PANEL, MOUNTED IN A VEHICLE |
| GB2142460A (en) * | 1983-06-13 | 1985-01-16 | Hitachi Ltd | Vehicle-mounted electronic display gauge board |
| GB2191446A (en) * | 1986-06-11 | 1987-12-16 | Hewlett Packard Co | Stabilized molded rubber keyboards |
| GB2191446B (en) * | 1986-06-11 | 1990-10-03 | Hewlett Packard Co | Stabilized molded rubber keyboards. |
| GB2322008A (en) * | 1997-02-10 | 1998-08-12 | Nokia Mobile Phones Ltd | Switch |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7313697A (en) | 1974-04-09 |
| FR2213538A1 (en) | 1974-08-02 |
| CA1038964A (en) | 1978-09-19 |
| IT996789B (en) | 1975-12-10 |
| CH578213A5 (en) | 1976-07-30 |
| SE396662B (en) | 1977-09-26 |
| AU6117273A (en) | 1975-04-10 |
| NL175373C (en) | 1984-10-16 |
| DE2350176A1 (en) | 1974-04-18 |
| DE2350176B2 (en) | 1976-04-08 |
| NL175373B (en) | 1984-05-16 |
| FR2213538B1 (en) | 1983-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19931004 |