JPS5578329A - Display unit of electronic apparatus - Google Patents

Display unit of electronic apparatus

Info

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
Application number
JP15247578A
Other languages
Japanese (ja)
Inventor
Junichi Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP15247578A priority Critical patent/JPS5578329A/en
Priority to US06/100,053 priority patent/US4313108A/en
Priority to GB7941993A priority patent/GB2038055B/en
Priority to DE2949382A priority patent/DE2949382C2/en
Publication of JPS5578329A publication Critical patent/JPS5578329A/en
Pending legal-status Critical Current

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
JP15247578A 1978-12-07 1978-12-08 Display unit of electronic apparatus Pending JPS5578329A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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