JPS5557933A - Manufacture of keyboard for electronic desk-top calculator - Google Patents
Manufacture of keyboard for electronic desk-top calculatorInfo
- Publication number
- JPS5557933A JPS5557933A JP13194578A JP13194578A JPS5557933A JP S5557933 A JPS5557933 A JP S5557933A JP 13194578 A JP13194578 A JP 13194578A JP 13194578 A JP13194578 A JP 13194578A JP S5557933 A JPS5557933 A JP S5557933A
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- keyboard
- printed
- substrate film
- insulation
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
- Calculators And Similar Devices (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: To obtain a durable keyboard for a thin electronic desk-top calculator by displaying information on a surface insulating substrate film by making and breaking contacts of a printed circuit substrate by depressing and releasing through openings of an intermediate insulation part.
CONSTITUTION: On the reverse of transparent flexible insulation substrate film 1, mirror-image symmetric pattern 3 of desired display of a keyboard for an electronic desk-top calculator is printed by opaque coloring insulation coating to a fixed thickness, and suspension coating, obtained by mixing and dissolving conductive corpuscles of fixed materials of fixed grain size, a rubber-based and thermoplastic resin- based binder of fixed materials, and a solvent of fixed materials to a fixed weight rate, is printed in circular conductivelayer area 5 surrounding respective elements of pattern 3 to a thickness of 25W50μ to form keyboard insulation substrate film 6. Next, flexible intermediate substrate film 6 is formed which has opening part 8 corresponding to each conductive layer area. Then, printed-circuit substrate 11 with each desired formed contact part 10 is mounted through film 6 and sheet 9 to bond three parts tightly, and the ON-OFF operation of each contact part is performed through opening part 8 of sheet 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13194578A JPS5557933A (en) | 1978-10-26 | 1978-10-26 | Manufacture of keyboard for electronic desk-top calculator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13194578A JPS5557933A (en) | 1978-10-26 | 1978-10-26 | Manufacture of keyboard for electronic desk-top calculator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5557933A true JPS5557933A (en) | 1980-04-30 |
JPS641885B2 JPS641885B2 (en) | 1989-01-13 |
Family
ID=15069875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13194578A Granted JPS5557933A (en) | 1978-10-26 | 1978-10-26 | Manufacture of keyboard for electronic desk-top calculator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557933A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58207163A (en) * | 1982-03-03 | 1983-12-02 | Casio Comput Co Ltd | Sheet type miniature electronic device |
JPS60122455A (en) * | 1984-07-31 | 1985-06-29 | Casio Comput Co Ltd | Small sized electronic device |
CN110406140A (en) * | 2019-08-07 | 2019-11-05 | 电子科技大学 | The preparation method and film of flexible electrochromic layer pattern film based on liquid-sheet disintegration self assembly |
-
1978
- 1978-10-26 JP JP13194578A patent/JPS5557933A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58207163A (en) * | 1982-03-03 | 1983-12-02 | Casio Comput Co Ltd | Sheet type miniature electronic device |
JPS6259824B2 (en) * | 1982-03-03 | 1987-12-12 | Casio Computer Co Ltd | |
JPS60122455A (en) * | 1984-07-31 | 1985-06-29 | Casio Comput Co Ltd | Small sized electronic device |
JPS6261980B2 (en) * | 1984-07-31 | 1987-12-24 | Casio Computer Co Ltd | |
CN110406140A (en) * | 2019-08-07 | 2019-11-05 | 电子科技大学 | The preparation method and film of flexible electrochromic layer pattern film based on liquid-sheet disintegration self assembly |
CN110406140B (en) * | 2019-08-07 | 2021-08-03 | 电子科技大学 | Preparation method of flexible electrochromic patterned film based on liquid film fracture self-assembly and film |
Also Published As
Publication number | Publication date |
---|---|
JPS641885B2 (en) | 1989-01-13 |
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