JPS5578329A - Display unit of electronic apparatus - Google Patents
Display unit of electronic apparatusInfo
- Publication number
- JPS5578329A JPS5578329A JP15247578A JP15247578A JPS5578329A JP S5578329 A JPS5578329 A JP S5578329A JP 15247578 A JP15247578 A JP 15247578A JP 15247578 A JP15247578 A JP 15247578A JP S5578329 A JPS5578329 A JP S5578329A
- Authority
- JP
- Japan
- Prior art keywords
- display unit
- liquid crystal
- driving signal
- crystal display
- key
- 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.)
- Pending
Links
Abstract
PURPOSE: To display names of respective input keys together with output information with a light receiving display unit such as a liquid crystal display unit in an electronic apparatus having input keys.
CONSTITUTION: When power source switch 2a is operated, driving signals X, Y and Z are given from central processing circuit 11 to a key name electrode of liquid crystal display unit 6 through lines 17a, 17b and 17c. Further, when display driving signal is sent to liquid crystal display unit 6 through lines 18a and 18b at the timing of driving signal Y and display driving signal B is sent to liquid crystal display unit 6 at the timing of driving signal X, key names for arithmetic operations are displayed in position of respective input keys 41, 42, 43...422. Next, when input key 41 of key name display of "F1" is operated, central processing circuit 11 sends display driving signals A and B to liquid crystal display unit 6 through lines 18a and 18b at the timing of driving signal X, thus displaying key names for relation operations.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15247578A JPS5578329A (en) | 1978-12-08 | 1978-12-08 | Display unit of electronic apparatus |
US06/100,053 US4313108A (en) | 1978-12-07 | 1979-12-04 | Electric apparatus for displaying a plurality of key symbols on a single passive display |
GB7941993A GB2038055B (en) | 1978-12-07 | 1979-12-05 | Keyboard having passive display |
DE2949382A DE2949382C2 (en) | 1978-12-07 | 1979-12-07 | Electrical device having a keyboard and a display of key symbols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15247578A JPS5578329A (en) | 1978-12-08 | 1978-12-08 | Display unit of electronic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5578329A true JPS5578329A (en) | 1980-06-12 |
Family
ID=15541318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15247578A Pending JPS5578329A (en) | 1978-12-07 | 1978-12-08 | Display unit of electronic apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5578329A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147768A (en) * | 1981-03-09 | 1982-09-11 | Canon Inc | Electronic calculator |
JPS61290520A (en) * | 1985-06-19 | 1986-12-20 | Nippon Texas Instr Kk | Electronic equipment |
-
1978
- 1978-12-08 JP JP15247578A patent/JPS5578329A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147768A (en) * | 1981-03-09 | 1982-09-11 | Canon Inc | Electronic calculator |
JPH0232654B2 (en) * | 1981-03-09 | 1990-07-23 | Canon Kk | |
JPS61290520A (en) * | 1985-06-19 | 1986-12-20 | Nippon Texas Instr Kk | Electronic equipment |
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