JPS5440586A - Light extinguishing circuit of thin-film el element - Google Patents
Light extinguishing circuit of thin-film el elementInfo
- 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
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
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)
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 |
-
1977
- 1977-09-06 JP JP52107424A patent/JPS609278B2/en not_active Expired
Cited By (2)
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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