JPH0362497U - - Google Patents

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Publication number
JPH0362497U
JPH0362497U JP1989123671U JP12367189U JPH0362497U JP H0362497 U JPH0362497 U JP H0362497U JP 1989123671 U JP1989123671 U JP 1989123671U JP 12367189 U JP12367189 U JP 12367189U JP H0362497 U JPH0362497 U JP H0362497U
Authority
JP
Japan
Prior art keywords
switching element
drive circuit
light emitting
storage capacitor
response
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
JP1989123671U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1989123671U priority Critical patent/JPH0362497U/ja
Publication of JPH0362497U publication Critical patent/JPH0362497U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例に係るＥＬ駆動回路
図、第２図は本実施例におけるスイツチング素子
の断面説明図、第３図は本実施例をマトリツクス
型ＥＬ表示装置に応用した場合の駆動回路図、第
４図は従来のＥＬ駆動回路図、第５図はＥＬ発光
素子の輝度とＥＬ発光素子の駆動電源周波数との
関係を示す図、第６図はＥＬ発光素子の輝度とＥ
Ｌ発光素子を駆動するスイツチング素子のゲート
電圧との関係を示す図、第７図ａ，ｂ，ｃは、Ｅ
Ｌ発光素子の発光動作を説明するためのタイミン
グ図、第８図は第１のスイツチング素子のドレイ
ン電流−ゲート電圧特性を示す図である。 Ｑ１……第１のスイツチング素子、Ｑ２……第
２のスイツチング素子、ＣＥＬ……ＥＬ発光素子
、ＣＳ……蓄積用コンデンサ、ＲＤ……放電抵抗
、Ｖａ……ＥＬ駆動電源、２……ゲート電極、４
……半導体層（アモルフアスシリコン）、６ａ…
…ドレイン電極、６ｂ……ソース電極。 Fig. 1 is an EL drive circuit diagram according to an embodiment of the present invention, Fig. 2 is a cross-sectional explanatory diagram of a switching element in this embodiment, and Fig. 3 is an EL drive circuit diagram when this embodiment is applied to a matrix type EL display device. 4 is a conventional EL drive circuit diagram, FIG. 5 is a diagram showing the relationship between the brightness of an EL light emitting element and the drive power frequency of the EL light emitting element, and FIG. 6 is a diagram showing the relationship between the brightness of an EL light emitting element and the E
Figures 7a, b, and c are diagrams showing the relationship between the gate voltage of the switching element that drives the L light emitting element, and the E
FIG. 8 is a timing diagram for explaining the light emitting operation of the L light emitting element, and is a diagram showing the drain current-gate voltage characteristics of the first switching element. Q1 ...First switching element, Q2 ...Second switching element, CEL...EL light emitting element, CS...Storage capacitor, RD...Discharge resistor, Va...EL drive power source, 2... Gate electrode, 4
...Semiconductor layer (amorphous silicon), 6a...
...Drain electrode, 6b...Source electrode.

Claims (1)

【実用新案登録請求の範囲】 (1) スイツチング信号に応じてオンし、発光信
号に応じて蓄積用コンデンサを充放電する第１の
スイツチング素子と、前記蓄積用コンデンサから
の放電電圧に応じてオンし、ＥＬ発光素子を発光
させる第２のスイツチング素子とを具備するＥＬ
駆動回路において、 前記第２のスイツチング素子のゲート端子側に
、前記蓄積用コンデンサと並列に接続される放電
抵抗を設けたことを特徴とするＥＬ駆動回路。 (2) 第１のスイツチング素子の半導体層をアモ
ルフアスシリコンａ−Ｓｉで形成する請求項１記
載のＥＬ駆動回路。[Claims for Utility Model Registration] (1) A first switching element that is turned on in response to a switching signal and charges and discharges a storage capacitor in response to a light emission signal; and a second switching element that causes the EL light emitting element to emit light.
An EL drive circuit, characterized in that a discharge resistor connected in parallel with the storage capacitor is provided on the gate terminal side of the second switching element. (2) The EL drive circuit according to claim 1, wherein the semiconductor layer of the first switching element is formed of amorphous silicon a-Si.
JP1989123671U 1989-10-24 1989-10-24 Pending JPH0362497U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989123671U JPH0362497U (en) 1989-10-24 1989-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989123671U JPH0362497U (en) 1989-10-24 1989-10-24

Publications (1)

Publication Number Publication Date
JPH0362497U true JPH0362497U (en) 1991-06-19

Family

ID=31671637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989123671U Pending JPH0362497U (en) 1989-10-24 1989-10-24

Country Status (1)

Country Link
JP (1) JPH0362497U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002196706A (en) * 1996-11-29 2002-07-12 Sanyo Electric Co Ltd Display device with simple matrix method
JP2007518112A (en) * 2003-12-11 2007-07-05 サーントル ナスィヨナル ドゥ ラ ルシェルシュ スイヤンティフィック （セ エヌ エール エス） Electronic control cell of organic light-emitting diode in active matrix display, its operating method and display

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165186A (en) * 1980-05-24 1981-12-18 Matsushita Electric Industrial Co Ltd Matrix display unit
JPS59123873A (en) * 1982-12-29 1984-07-17 富士通株式会社 El display

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165186A (en) * 1980-05-24 1981-12-18 Matsushita Electric Industrial Co Ltd Matrix display unit
JPS59123873A (en) * 1982-12-29 1984-07-17 富士通株式会社 El display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002196706A (en) * 1996-11-29 2002-07-12 Sanyo Electric Co Ltd Display device with simple matrix method
JP2007518112A (en) * 2003-12-11 2007-07-05 サーントル ナスィヨナル ドゥ ラ ルシェルシュ スイヤンティフィック （セ エヌ エール エス） Electronic control cell of organic light-emitting diode in active matrix display, its operating method and display

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