JPS5453982A - Driving unit of thin film el display unit - Google Patents

Driving unit of thin film el display unit

Info

Publication number
JPS5453982A
JPS5453982A JP12121477A JP12121477A JPS5453982A JP S5453982 A JPS5453982 A JP S5453982A JP 12121477 A JP12121477 A JP 12121477A JP 12121477 A JP12121477 A JP 12121477A JP S5453982 A JPS5453982 A JP S5453982A
Authority
JP
Japan
Prior art keywords
voltage
turned
write
electrodes
gates
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
JP12121477A
Other languages
Japanese (ja)
Other versions
JPS6015079B2 (en
Inventor
Yoshiharu Kanetani
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 JP12121477A priority Critical patent/JPS6015079B2/en
Priority to DE19782843801 priority patent/DE2843801C2/en
Priority to FR7828675A priority patent/FR2405604A1/en
Priority to GB7839702A priority patent/GB2008303B/en
Priority to GB8032430A priority patent/GB2057743B/en
Publication of JPS5453982A publication Critical patent/JPS5453982A/en
Priority to US06/154,370 priority patent/US4366504A/en
Publication of JPS6015079B2 publication Critical patent/JPS6015079B2/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 constitute the circuit in which the number of selection data electrodes of write-in is very great to the number of the data electrodes m and a given write- in voltage can be fed stably even if p≈m and p is greatly changed.
CONSTITUTION: The gates 14 are all turned on and the gates 13 are all turned off, the circuit 11 is driven with the signal S1 and all the video elements are charged up to Vp(light emitting voltage Vw- threshold voltage Vth) through m sets of electrodes X. The scanning side gate 14 is turned off and the modulation side gate 13 is driven with constant current so that the input voltage has a given relation with the output current, and the charge charged up is discharged for a constant current. Next, the gates 13, 14 are all turned off and only SSj is turned on. The electrodes other than the scanning electrode Yj selected are raised to Vth, and the write-in voltage Vw(i)=V(i)+Vth is fed to the video element (i,j) and intermediate illmination is made correspondingly. Thus, the write-in voltage is fed with the scanning electrode not including the selected video element, then the raising voltage for write-in is not changed with the number of the selected data electrodes m and illumination with a given brightness can be made
COPYRIGHT: (C)1979,JPO&Japio
JP12121477A 1977-10-07 1977-10-07 Drive device for thin film EL display device Expired JPS6015079B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP12121477A JPS6015079B2 (en) 1977-10-07 1977-10-07 Drive device for thin film EL display device
DE19782843801 DE2843801C2 (en) 1977-10-07 1978-10-06 Circuit arrangement for controlling a thin-film electroluminescent video display panel with a matrix structure
FR7828675A FR2405604A1 (en) 1977-10-07 1978-10-06 THIN-LAYER ELECTRO-LUMINESCENT DISPLAY PANEL
GB7839702A GB2008303B (en) 1977-10-07 1978-10-06 Image display panel
GB8032430A GB2057743B (en) 1977-10-07 1978-10-06 Video display device
US06/154,370 US4366504A (en) 1977-10-07 1980-05-29 Thin-film EL image display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12121477A JPS6015079B2 (en) 1977-10-07 1977-10-07 Drive device for thin film EL display device

Publications (2)

Publication Number Publication Date
JPS5453982A true JPS5453982A (en) 1979-04-27
JPS6015079B2 JPS6015079B2 (en) 1985-04-17

Family

ID=14805691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12121477A Expired JPS6015079B2 (en) 1977-10-07 1977-10-07 Drive device for thin film EL display device

Country Status (1)

Country Link
JP (1) JPS6015079B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6121943A (en) * 1995-07-04 2000-09-19 Denso Corporation Electroluminescent display with constant current control circuits in scan electrode circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6121943A (en) * 1995-07-04 2000-09-19 Denso Corporation Electroluminescent display with constant current control circuits in scan electrode circuit

Also Published As

Publication number Publication date
JPS6015079B2 (en) 1985-04-17

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