JPS52106634A - Driving circuit for current drive luminous display unit - Google Patents

Driving circuit for current drive luminous display unit

Info

Publication number
JPS52106634A
JPS52106634A JP2330276A JP2330276A JPS52106634A JP S52106634 A JPS52106634 A JP S52106634A JP 2330276 A JP2330276 A JP 2330276A JP 2330276 A JP2330276 A JP 2330276A JP S52106634 A JPS52106634 A JP S52106634A
Authority
JP
Japan
Prior art keywords
current drive
display unit
driving circuit
luminous display
drive luminous
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
JP2330276A
Other languages
Japanese (ja)
Inventor
Tokuo Matsumoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2330276A priority Critical patent/JPS52106634A/en
Publication of JPS52106634A publication Critical patent/JPS52106634A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

PURPOSE: To extend the boundary of manufacture by keeping the brightness of LED constant by constant-current drive and reducing the size of manufacture without the external parts and compensating the unbalance of range value voltage in circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP2330276A 1976-03-05 1976-03-05 Driving circuit for current drive luminous display unit Pending JPS52106634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2330276A JPS52106634A (en) 1976-03-05 1976-03-05 Driving circuit for current drive luminous display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2330276A JPS52106634A (en) 1976-03-05 1976-03-05 Driving circuit for current drive luminous display unit

Publications (1)

Publication Number Publication Date
JPS52106634A true JPS52106634A (en) 1977-09-07

Family

ID=12106800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2330276A Pending JPS52106634A (en) 1976-03-05 1976-03-05 Driving circuit for current drive luminous display unit

Country Status (1)

Country Link
JP (1) JPS52106634A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63142392A (en) * 1986-12-05 1988-06-14 三菱電機株式会社 Light emitting diode array head
JP2004088158A (en) * 2002-08-22 2004-03-18 Seiko Epson Corp Electronic circuit, electrooptical apparatus, and electronic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63142392A (en) * 1986-12-05 1988-06-14 三菱電機株式会社 Light emitting diode array head
JP2004088158A (en) * 2002-08-22 2004-03-18 Seiko Epson Corp Electronic circuit, electrooptical apparatus, and electronic apparatus

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