JPS5440586A - Light extinguishing circuit of thin-film el element - Google Patents

Light extinguishing circuit of thin-film el element

Info

Publication number
JPS5440586A
JPS5440586A JP10742477A JP10742477A JPS5440586A JP S5440586 A JPS5440586 A JP S5440586A JP 10742477 A JP10742477 A JP 10742477A JP 10742477 A JP10742477 A JP 10742477A JP S5440586 A JPS5440586 A JP S5440586A
Authority
JP
Japan
Prior art keywords
thin
film
extinguishing circuit
light extinguishing
voltage
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
Application number
JP10742477A
Other languages
Japanese (ja)
Other versions
JPS609278B2 (en
Inventor
Kenzo Inazaki
Masahiro Ise
Katsuyuki Machino
Chuji Suzuki
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP52107424A priority Critical patent/JPS609278B2/en
Priority to US05/925,973 priority patent/US4210848A/en
Priority to DE2831788A priority patent/DE2831788C3/en
Priority to FR7821430A priority patent/FR2398358A1/en
Priority to GB7830590A priority patent/GB2003171B/en
Publication of JPS5440586A publication Critical patent/JPS5440586A/en
Publication of JPS609278B2 publication Critical patent/JPS609278B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make high-brightness luminescence possible, and to obtain the longlife EL element in a three-layer structure, by driving the element by an AC voltage of several KHz through an alternation between a maintaining voltage and bias voltage by a simple circuit constitution.
COPYRIGHT: (C)1979,JPO&Japio
JP52107424A 1977-07-20 1977-09-06 Light erasing circuit for thin film EL elements Expired JPS609278B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP52107424A JPS609278B2 (en) 1977-09-06 1977-09-06 Light erasing circuit for thin film EL elements
US05/925,973 US4210848A (en) 1977-07-20 1978-07-19 Thin-film EL display panel with light-activated write and erase means
DE2831788A DE2831788C3 (en) 1977-07-20 1978-07-19 Method and circuit arrangement for controlling a thin-film electroluminescent display element that can be excited by the action of light
FR7821430A FR2398358A1 (en) 1977-07-20 1978-07-19 THIN LAYER ELECTROLUMINESCENT DISPLAY PANEL
GB7830590A GB2003171B (en) 1977-07-20 1978-07-20 Thin-film el display panel with light-activated write and erase means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52107424A JPS609278B2 (en) 1977-09-06 1977-09-06 Light erasing circuit for thin film EL elements

Publications (2)

Publication Number Publication Date
JPS5440586A true JPS5440586A (en) 1979-03-30
JPS609278B2 JPS609278B2 (en) 1985-03-08

Family

ID=14458788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52107424A Expired JPS609278B2 (en) 1977-07-20 1977-09-06 Light erasing circuit for thin film EL elements

Country Status (1)

Country Link
JP (1) JPS609278B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562478A (en) * 1982-02-18 1985-12-31 Casio Computer Co., Ltd. Liquid crystal television receiver
US4845489A (en) * 1985-12-23 1989-07-04 Chrysler Motors Corporation Electroluminescent display drive circuitry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562478A (en) * 1982-02-18 1985-12-31 Casio Computer Co., Ltd. Liquid crystal television receiver
US4845489A (en) * 1985-12-23 1989-07-04 Chrysler Motors Corporation Electroluminescent display drive circuitry

Also Published As

Publication number Publication date
JPS609278B2 (en) 1985-03-08

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