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JPS5422190A - Optical driving system for thin film el element - Google Patents

Optical driving system for thin film el element

Info

Publication number
JPS5422190A
JPS5422190A JP8776777A JP8776777A JPS5422190A JP S5422190 A JPS5422190 A JP S5422190A JP 8776777 A JP8776777 A JP 8776777A JP 8776777 A JP8776777 A JP 8776777A JP S5422190 A JPS5422190 A JP S5422190A
Authority
JP
Japan
Prior art keywords
voltage
thin film
driving system
optical driving
light emission
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
JP8776777A
Other languages
Japanese (ja)
Other versions
JPS609279B2 (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 JP52087767A priority Critical patent/JPS609279B2/en
Priority to FR7821430A priority patent/FR2398358A1/en
Priority to US05/925,973 priority patent/US4210848A/en
Priority to DE2831788A priority patent/DE2831788C3/en
Priority to GB7830590A priority patent/GB2003171B/en
Publication of JPS5422190A publication Critical patent/JPS5422190A/en
Publication of JPS609279B2 publication Critical patent/JPS609279B2/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 secure the optical writing ane erasion by applying the flash lamp light and the AC pulse train featuring the voltage value at the point where the difference is large enough between the minimum light emission luminance at the voltage increase time and the maximum light emission luminance at the voltage drop time to the EL element featuring a hysteresis phenomenon between the voltage and luminance.
COPYRIGHT: (C)1979,JPO&Japio
JP52087767A 1977-07-20 1977-07-20 Optical driving method for thin film EL elements Expired JPS609279B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP52087767A JPS609279B2 (en) 1977-07-20 1977-07-20 Optical driving method for thin film EL elements
FR7821430A FR2398358A1 (en) 1977-07-20 1978-07-19 THIN LAYER ELECTROLUMINESCENT DISPLAY PANEL
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
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
JP52087767A JPS609279B2 (en) 1977-07-20 1977-07-20 Optical driving method for thin film EL elements

Publications (2)

Publication Number Publication Date
JPS5422190A true JPS5422190A (en) 1979-02-19
JPS609279B2 JPS609279B2 (en) 1985-03-08

Family

ID=13924108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52087767A Expired JPS609279B2 (en) 1977-07-20 1977-07-20 Optical driving method for thin film EL elements

Country Status (1)

Country Link
JP (1) JPS609279B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58144893A (en) * 1982-02-23 1983-08-29 富士通株式会社 El type display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58144893A (en) * 1982-02-23 1983-08-29 富士通株式会社 El type display

Also Published As

Publication number Publication date
JPS609279B2 (en) 1985-03-08

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