JP5257075B2 - 画像表示装置 - Google Patents
画像表示装置 Download PDFInfo
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- JP5257075B2 JP5257075B2 JP2008556594A JP2008556594A JP5257075B2 JP 5257075 B2 JP5257075 B2 JP 5257075B2 JP 2008556594 A JP2008556594 A JP 2008556594A JP 2008556594 A JP2008556594 A JP 2008556594A JP 5257075 B2 JP5257075 B2 JP 5257075B2
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- Prior art keywords
- driver transistor
- voltage
- switch
- current
- turned
- 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.)
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- 239000003990 capacitor Substances 0.000 claims description 45
- 238000000926 separation method Methods 0.000 claims description 2
- 238000005401 electroluminescence Methods 0.000 description 46
- 239000011159 matrix material Substances 0.000 description 10
- 239000010409 thin film Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 108091006146 Channels Proteins 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 102000004129 N-Type Calcium Channels Human genes 0.000 description 1
- 108090000699 N-Type Calcium Channels Proteins 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G09G3/22—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
- 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
- G09G3/32—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]
- G09G3/3208—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]
- 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
- G09G3/3233—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 with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
Description
図1は、本発明の実施の形態における有機EL表示装置の構成を示す模式図である。
図4は、本発明の実施の形態における画像表示装置のしきい値検出期間T1における動作を説明するための図である。なお図4には、説明のために、図2のトランジスタQ2〜Q5をそれぞれスイッチSW2〜SW5で置き換えている。
図5は、本発明の実施の形態における画像表示装置の書込み期間T2における動作を説明するための図である。
図6は、本発明の実施の形態における画像表示装置の発光期間T3における動作を説明するための図である。
11 走査線駆動回路
12 データ線駆動回路
14 電源線駆動回路
20 データ線
24 高電圧側電源線
25 低電圧側電源線
26 参照電圧線
41 走査線
42 リセット線
43 イネーブル線
44 マージ線
D1 有機EL素子
C1 保持コンデンサ
C2 補助コンデンサ
Q1 ドライバトランジスタ
Q2,Q3,Q4,Q5 トランジスタ
SW2,SW3,SW4,SW5 スイッチ
Claims (2)
- 電流発光素子と、
データ線と、
ゲートとソースとを有し、前記電流発光素子に電流を流すドライバトランジスタと、
発光期間において前記ドライバトランジスタの前記ゲートと前記ソースとの間に接続され、前記ドライバトランジスタの流す電流量を決める電圧を保持する保持コンデンサと、
前記データ線と前記保持コンデンサの前記ドライバトランジスタの前記ソースに接続されている側との間に接続され、画像信号に応じた電圧を前記保持コンデンサに書込む書込みスイッチと、
駆動回路と、
を有する画素回路を複数配列した画像表示装置であって、
前記画素回路のそれぞれを構成するトランジスタはNチャンネル型トランジスタであり、
前記画素回路のそれぞれは、
前記電流発光素子に電流を流す電流経路に挿入されたイネーブルスイッチと、
前記保持コンデンサの端子のうち前記書込みスイッチが接続された端子の反対側の端子と接続されている間、前記書込みスイッチが接続された前記端子の反対側の前記端子の電圧変動を抑制する補助コンデンサと、
前記ドライバトランジスタの前記ゲートと前記ドライバトランジスタのドレインとの間に接続されたゲート・ドレイン接続スイッチと、
をさらに備え、
前記ドライバトランジスタの前記ソースと低電圧側電源線との間に前記電流発光素子が接続されるとともに前記ドライバトランジスタの前記ドレインと高電圧側電源線との間に前記イネーブルスイッチを接続し、前記ドライバトランジスタの前記ドレインと所定の電源線との間に前記補助コンデンサを接続し、
前記駆動回路は、
前記イネーブルスイッチをOFF状態、前記ゲート・ドレイン接続スイッチをON状態において、前記書き込みスイッチをON状態にし、前記ドライバトランジスタの流す電流量を決める前記電圧を前記保持コンデンサに書き込み、
前記ゲート・ドレイン接続スイッチをOFF状態にした後に、前記イネーブルスイッチをON状態にする
画像表示装置。 - 前記画素回路のそれぞれは、前記ドライバトランジスタのソースと前記保持コンデンサの前記ドライバトランジスタの前記ソースに接続されている側との間に接続された分離スイッチを備え、
前記駆動回路は、
前記イネーブルスイッチをOFF状態、前記ゲート・ドレイン接続スイッチをON状態として、前記書き込みスイッチをON状態にし、前記ドライバトランジスタの流す電流量を決める前記電圧を前記保持コンデンサに書き込む書き込み期間において、前記分離スイッチをOFF状態にする
請求項1に記載の画像表示装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008556594A JP5257075B2 (ja) | 2007-06-15 | 2008-06-09 | 画像表示装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007158254 | 2007-06-15 | ||
JP2007158254 | 2007-06-15 | ||
PCT/JP2008/001455 WO2008152793A1 (ja) | 2007-06-15 | 2008-06-09 | 画像表示装置 |
JP2008556594A JP5257075B2 (ja) | 2007-06-15 | 2008-06-09 | 画像表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008152793A1 JPWO2008152793A1 (ja) | 2010-08-26 |
JP5257075B2 true JP5257075B2 (ja) | 2013-08-07 |
Family
ID=40129408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008556594A Active JP5257075B2 (ja) | 2007-06-15 | 2008-06-09 | 画像表示装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US8169385B2 (ja) |
JP (1) | JP5257075B2 (ja) |
WO (1) | WO2008152793A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009276744A (ja) * | 2008-02-13 | 2009-11-26 | Toshiba Mobile Display Co Ltd | El表示装置 |
JP5214384B2 (ja) * | 2008-09-26 | 2013-06-19 | 株式会社東芝 | 表示装置及びその駆動方法 |
KR101940220B1 (ko) * | 2012-10-23 | 2019-01-18 | 엘지디스플레이 주식회사 | 전원제어부를 포함하는 표시장치 및 그 구동방법 |
US10957402B2 (en) * | 2019-01-28 | 2021-03-23 | Micron Technology, Inc. | High-voltage shifter with degradation compensation |
TWI736862B (zh) * | 2019-03-21 | 2021-08-21 | 友達光電股份有限公司 | 發光二極體顯示面板 |
JP2021096282A (ja) * | 2019-12-13 | 2021-06-24 | エルジー ディスプレイ カンパニー リミテッド | 発光表示装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003208127A (ja) * | 2001-11-09 | 2003-07-25 | Sanyo Electric Co Ltd | 表示装置 |
JP2006003716A (ja) * | 2004-06-18 | 2006-01-05 | Seiko Epson Corp | 電子回路、その制御方法、電気光学装置および電子機器 |
JP2006018312A (ja) * | 2005-07-26 | 2006-01-19 | Seiko Epson Corp | 電子回路、電気光学装置、及び電子機器 |
JP2006189874A (ja) * | 2005-01-07 | 2006-07-20 | Samsung Sdi Co Ltd | 有機電界発光表示装置及びその動作方法 |
JP2006209074A (ja) * | 2004-08-31 | 2006-08-10 | Kyocera Corp | 画像表示装置およびその駆動方法 |
JP2006317600A (ja) * | 2005-05-11 | 2006-11-24 | Sony Corp | 画素回路 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0978114A4 (en) | 1997-04-23 | 2003-03-19 | Sarnoff Corp | PIXEL STRUCTURE WITH LIGHT EMITTING DIODE AND ACTIVE MATRIX AND METHOD |
JP4734529B2 (ja) | 2003-02-24 | 2011-07-27 | 奇美電子股▲ふん▼有限公司 | 表示装置 |
JP4036209B2 (ja) * | 2004-04-22 | 2008-01-23 | セイコーエプソン株式会社 | 電子回路、その駆動方法、電気光学装置および電子機器 |
JP2006309104A (ja) | 2004-07-30 | 2006-11-09 | Sanyo Electric Co Ltd | アクティブマトリクス駆動型表示装置 |
WO2006090560A1 (ja) * | 2005-02-25 | 2006-08-31 | Kyocera Corporation | 画像表示装置 |
JP5245195B2 (ja) | 2005-11-14 | 2013-07-24 | ソニー株式会社 | 画素回路 |
-
2008
- 2008-06-09 US US12/443,054 patent/US8169385B2/en active Active
- 2008-06-09 JP JP2008556594A patent/JP5257075B2/ja active Active
- 2008-06-09 WO PCT/JP2008/001455 patent/WO2008152793A1/ja active Application Filing
-
2012
- 2012-03-28 US US13/432,386 patent/US8314755B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003208127A (ja) * | 2001-11-09 | 2003-07-25 | Sanyo Electric Co Ltd | 表示装置 |
JP2006003716A (ja) * | 2004-06-18 | 2006-01-05 | Seiko Epson Corp | 電子回路、その制御方法、電気光学装置および電子機器 |
JP2006209074A (ja) * | 2004-08-31 | 2006-08-10 | Kyocera Corp | 画像表示装置およびその駆動方法 |
JP2006189874A (ja) * | 2005-01-07 | 2006-07-20 | Samsung Sdi Co Ltd | 有機電界発光表示装置及びその動作方法 |
JP2006317600A (ja) * | 2005-05-11 | 2006-11-24 | Sony Corp | 画素回路 |
JP2006018312A (ja) * | 2005-07-26 | 2006-01-19 | Seiko Epson Corp | 電子回路、電気光学装置、及び電子機器 |
Also Published As
Publication number | Publication date |
---|---|
WO2008152793A1 (ja) | 2008-12-18 |
JPWO2008152793A1 (ja) | 2010-08-26 |
US20120194501A1 (en) | 2012-08-02 |
US8314755B2 (en) | 2012-11-20 |
US20100091041A1 (en) | 2010-04-15 |
US8169385B2 (en) | 2012-05-01 |
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