JP2011228295A - 発光装置、及びその駆動方法 - Google Patents
発光装置、及びその駆動方法 Download PDFInfo
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- JP2011228295A JP2011228295A JP2011077513A JP2011077513A JP2011228295A JP 2011228295 A JP2011228295 A JP 2011228295A JP 2011077513 A JP2011077513 A JP 2011077513A JP 2011077513 A JP2011077513 A JP 2011077513A JP 2011228295 A JP2011228295 A JP 2011228295A
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- light
- emitting
- light emitting
- constant current
- electrode
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- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- MILUBEOXRNEUHS-UHFFFAOYSA-N iridium(3+) Chemical compound [Ir+3] MILUBEOXRNEUHS-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- WOYDRSOIBHFMGB-UHFFFAOYSA-N n,9-diphenyl-n-(9-phenylcarbazol-3-yl)carbazol-3-amine Chemical compound C1=CC=CC=C1N(C=1C=C2C3=CC=CC=C3N(C=3C=CC=CC=3)C2=CC=1)C1=CC=C(N(C=2C=CC=CC=2)C=2C3=CC=CC=2)C3=C1 WOYDRSOIBHFMGB-UHFFFAOYSA-N 0.000 description 1
- UMFJAHHVKNCGLG-UHFFFAOYSA-N n-Nitrosodimethylamine Chemical compound CN(C)N=O UMFJAHHVKNCGLG-UHFFFAOYSA-N 0.000 description 1
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical group C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 1
- COVCYOMDZRYBNM-UHFFFAOYSA-N n-naphthalen-1-yl-9-phenyl-n-(9-phenylcarbazol-3-yl)carbazol-3-amine Chemical compound C1=CC=CC=C1N1C2=CC=C(N(C=3C=C4C5=CC=CC=C5N(C=5C=CC=CC=5)C4=CC=3)C=3C4=CC=CC=C4C=CC=3)C=C2C2=CC=CC=C21 COVCYOMDZRYBNM-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- DYIZHKNUQPHNJY-UHFFFAOYSA-N oxorhenium Chemical compound [Re]=O DYIZHKNUQPHNJY-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910003449 rhenium oxide Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- GWDUZCIBPDVBJM-UHFFFAOYSA-L zinc;2-(2-hydroxyphenyl)-3h-1,3-benzothiazole-2-carboxylate Chemical compound [Zn+2].OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1.OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1 GWDUZCIBPDVBJM-UHFFFAOYSA-L 0.000 description 1
- QEPMORHSGFRDLW-UHFFFAOYSA-L zinc;2-(2-hydroxyphenyl)-3h-1,3-benzoxazole-2-carboxylate Chemical compound [Zn+2].OC1=CC=CC=C1C1(C([O-])=O)OC2=CC=CC=C2N1.OC1=CC=CC=C1C1(C([O-])=O)OC2=CC=CC=C2N1 QEPMORHSGFRDLW-UHFFFAOYSA-L 0.000 description 1
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- H05B45/10—Controlling the intensity of the light
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
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- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- H05B45/40—Details of LED load circuits
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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Abstract
【解決手段】上記目的を達成するために、発光制御手段が制御する定電流電源に複数の発光パネルを接続した発光装置を用い、それぞれの発光パネルを独立して、逐次駆動すればよい。また、発光装置に設けた複数の発光パネルを万遍なく使用し、積算使用時間に差を生じないようにすればよい。
【選択図】図1
Description
本実施の形態では、発光制御手段が制御する定電流電源に複数の発光パネルを接続した発光装置について図1、及び図2を用いて説明する。
明るさを調整するための設定信号116が、輝度制御手段115から発光制御手段110に入力された後、発光制御手段110は、定電流電源120に発光パネル150(1)を選択する制御信号117を出力する。また、定電流電源120は制御信号117を介して設定信号116に応じた大きさの定電流126の出力に備える。次いで、定電流電源120は、時間1500から時間1501の間、発光パネル150(1)に定電流126を供給する。
次いで発光制御手段110は、定電流電源120に発光パネル150(2)を選択する制御信号117を出力する。定電流電源120は、時間1501から定電流126を発光パネル150(2)に供給する。このようにして発光制御手段110は、クロック信号CKに同期してn個の発光パネル150(1)〜150(n)に定電流電源120から逐次、定電流126を供給する。
次に明るさを変更する場合について説明する。時間1510において、輝度制御手段115からの明るさを調整するための設定信号116の値が変更されると、発光制御手段110は設定信号116に応じた制御信号117を定電流電源120に出力する。定電流電源120は制御信号117に応じて出力する電流の大きさを変化する。その結果、時間1511から発光パネルに流す電流の大きさが変化し、発光装置の明るさを変えることができる。
本実施の形態では、実施の形態1とは異なる方法で明るさを制御する発光装置の一態様について図3、及び図4を用いて説明する。具体的には、定電流電源が供給する電流のパルス幅を変えて明るさを制御する発光装置について説明する。
明るさを調整するための設定信号216が、輝度制御手段215から発光制御手段210に入力された後、発光制御手段210は、定電流電源220に発光パネル250(1)を選択する制御信号217を出力する。また、定電流電源220は制御信号217を介して設定信号216に応じたパルス幅を有するパルス状の定電流226の出力に備える。次いで、定電流電源220は、時間2500から発光パネル250(1)にパルス状の定電流226を供給する。
次いで発光制御手段210は、定電流電源220に発光パネル250(2)を選択する制御信号217を出力する。定電流電源220は、時間2501からパルス状の定電流226を発光パネル250(2)に供給する。このようにして発光制御手段210は、クロック信号CKに同期してn個の発光パネル250(1)〜250(n)に定電流電源220から逐次、パルス状の定電流226を供給する。なお、時間2500と時間2501の間にクロック信号CKは複数入る。
次に明るさを変更する場合について説明する。時間2510において、輝度制御手段215を用いて明るさを調整するための設定信号216の値が変更されると、発光制御手段210は制御信号217を介して、定電流電源220が出力するパルス状の定電流のパルス幅を、設定信号216に応じたパルス幅に変更する。その結果、時間2511から発光パネルに流れるパルス状の定電流のパルス幅が変更され、発光装置の明るさを変えることができる。なお、発光モジュール230を明るく点灯する場合は、パルス状の定電流のパルス幅を長く変更すればよく、暗く点灯する場合はパルス状の定電流のパルス幅を短く変更すればよい。
本実施の形態では、実施の形態1、及び実施の形態2に説明した発光装置に適用できる発光モジュールの接続方法の一態様について図5を用いて説明する。
本実施の形態では、第1の電極と、第2の電極の間に発光性の有機化合物を含む層を備える発光素子の一態様について、図6を用いて以下に説明する。
本実施の形態は、上記実施の形態に係る発光性の有機化合物を含む層(以下発光ユニットという)を複数積層して備える構成の発光素子(以下、積層型素子という)の態様について、図7を参照して説明する。この発光素子は、第1の電極と第2の電極との間に、複数の発光ユニットを有する発光素子である。発光ユニットとしては、実施の形態4で示した有機化合物を含む層602と同様な構成を用いることができる。つまり、実施の形態4で示した発光素子は、1つの発光ユニットを有する発光素子であり、本実施の形態では、複数の発光ユニットを有する発光素子について説明する。
本発明の一態様の発光装置を照明装置として用いる一態様を、図8乃至図10を用いて説明する。
110 発光制御手段
115 輝度制御手段
116 設定信号
117 制御信号
120 定電流電源
126 定電流
130 発光モジュール
131 端子部
132 端子部
150 発光パネル
200 発光装置
210 発光制御手段
215 輝度制御手段
216 設定信号
217 制御信号
220 定電流電源
226 定電流
230 発光モジュール
231 端子部
232 端子部
250 発光パネル
300 発光装置
310 発光制御手段
315 輝度制御手段
316 設定信号
317 制御信号
320 定電流電源
326 定電流
330 発光モジュール
331 端子部
332 端子部
340 発光モジュール
350 発光パネル
430 発光モジュール
431 端子部
432 端子部
450 発光パネル
501 電極
502 電極
511 発光ユニット
512 発光ユニット
513 電荷発生層
600 基板
601 電極
602 層
603 電極
611 正孔注入層
612 正孔輸送層
613 発光層
614 電子輸送層
901 筐体
902 液晶層
903 バックライト
904 筐体
905 ドライバIC
906 端子
1500 時間
1501 時間
1510 時間
1511 時間
2001 筐体
2002 光源
2500 時間
2501 時間
2510 時間
2511 時間
3001 照明装置
Claims (14)
- 複数の発光パネルと、
前記発光パネルのそれぞれに電力を供給する定電流電源と、
前記発光パネルの明るさを設定する輝度制御手段と、
前記発光パネルを同じ頻度で点滅するように、前記輝度制御手段の信号に基づいて、前記定電流電源の出力が逐次配電する発光制御手段を有し、
前記発光パネルが第1の電極と、第2の電極の間に発光性の有機化合物を含む層を有する発光素子を備える発光装置。 - 前記発光制御手段が前記定電流電源の出力電流を制御する請求項1記載の発光装置。
- 前記発光制御手段が前記定電流電源の出力する電流のパルス幅を制御する請求項1記載の発光装置。
- 前記定電流電源が、
前記発光制御手段が出力する制御信号に従って、
100Hz以上500kHz以下の頻度で、
それぞれの前記発光パネルに定電流を供給する請求項1乃至請求項3記載の発光装置。 - 複数の発光パネルと、
前記発光パネルのそれぞれに電力を供給する定電流電源と、
前記発光パネルの明るさを設定する輝度制御手段と、
前記発光パネルを同じ頻度で点滅するように、前記輝度制御手段の信号に基づいて、前記定電流電源の出力が逐次配電する発光制御手段を有し、
前記発光パネルが第1の電極と、第2の電極の間に電荷発生層を介して有機化合物を含む複数の発光ユニットを有する発光素子を備える発光装置。 - 前記発光制御手段が前記定電流電源の出力電流を制御する請求項5記載の発光装置。
- 前記発光制御手段が前記定電流電源の出力する電流のパルス幅を制御する請求項5記載の発光装置。
- 前記定電流電源が、
前記発光制御手段が出力する制御信号に従って、
100Hz以上500kHz以下の頻度で、
それぞれの前記発光パネルに定電流を供給する請求項5乃至請求項7のいずれか一に記載の発光装置。 - 第1の電極と、第2の電極の間に発光性の有機化合物を含む層を有する発光素子を設けたn個(nは2以上10000以下)の発光パネルと、各発光パネルの前記第1の電極と電気的に接続するn個の第1の端子と、各発光パネルの前記第2の電極と電気的に接続するn個の第2の端子を備える発光モジュールをm個(mは2以上10以下)用い、
いずれか一つの前記発光モジュールに設けた発光パネルのいずれか一の第2の端子と、他のいずれか一つの前記発光モジュールに設けた発光パネルのいずれか一の第1の端子を逐次接続して、m個の発光パネルを直列に接続したn個の発光体を形成し、
n個の前記発光体の前記第1の電極と接続する端子を定電流電源の一方の電極と接続し、
n個の前記発光体の前記第2の電極と接続する端子を前記定電流電源の他方の電極と接続し、
前記n個の発光体に輝度制御手段の信号に基づいて発光制御手段が制御する前記定電流電源から配電して前記n個の発光体を同じ頻度で点滅する発光装置の駆動方法。 - パルス状の電流を供給することにより複数の発光パネルのそれぞれを逐次発光するステップを含み、前記複数の発光パネルのそれぞれは有機化合物を含む発光層を含む、複数の発光パネルを含む発光装置の駆動方法。
- 前記発光装置の明るさを前記電流の電流値を変化させて調節するステップを更に含む、請求項10に記載した発光装置の駆動方法。
- 前記発光装置の明るさを前記電流のパルス幅を変化させて調節するステップを更に含む、請求項10に記載した発光装置の駆動方法。
- 前記発光装置の明るさを前記電流のデューティー比を変化させて調節するステップを更に含む、請求項10に記載した発光装置の駆動方法。
- 前記電流は定電流である、請求項10に記載した発光装置の駆動方法。
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