JP4834876B2 - 画像表示装置 - Google Patents
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- JP4834876B2 JP4834876B2 JP2004188834A JP2004188834A JP4834876B2 JP 4834876 B2 JP4834876 B2 JP 4834876B2 JP 2004188834 A JP2004188834 A JP 2004188834A JP 2004188834 A JP2004188834 A JP 2004188834A JP 4834876 B2 JP4834876 B2 JP 4834876B2
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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
- 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
- G09G3/3241—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 the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror
- G09G3/325—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 the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
-
- 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
- G09G3/3241—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 the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror
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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
- 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
-
- 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
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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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
- 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
- G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
-
- 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
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0238—Improving the black level
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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
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3283—Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
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- 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
がオンとされ、スイッチング素子11がオフとされると、ソース信号線17には、テスト電流itestが流れる。この場合、ドライバ素子12のゲート電位Vgは、(6)式で表される。
12 ドライバ素子
18 書き込み制御線
10Cs 蓄積容量
40 有機EL素子
42 ドライバ素子
40Cs 蓄積容量
60 有機EL素子
61 ドライバ素子
64 ドライバ素子
60Cs 蓄積容量
Claims (7)
- 電流注入により発光する発光手段と、
ゲート端子、ソース端子及びドレイン端子のうちの一方である第1端子、ソース端子及びドレイン端子のうちの他方である第2端子を有し、前記発光手段に前記第1端子が接続され、前記ゲート端子と前記第2端子との間に印加される、所定の駆動閾値電圧よりも高い電位差に応じて前記第2端子と前記第1端子の間に電流を流すトランジスタ素子と、
前記ゲート端子に接続された単一の蓄積容量手段と、
前記蓄積容量手段を介して前記ゲート端子に接続された書き込み制御線と、
前記ゲート端子と前記第1端子の間に接続された第1のスイッチング素子と、
電流源と、
前記第1端子と前記電流源の間に接続された第2のスイッチング素子と、
前記発光手段を発光させる発光期間と、該発光期間の前のデータ書き込み期間とで、前記書き込み制御線の電位、前記第1および第2のスイッチング素子の接続状態、および前記電流源の電流を切り替える制御手段と、
を備え、
前記発光手段と、前記トランジスタ素子と、前記蓄積容量手段と、前記第1および第2のスイッチング素子は画素毎に設けられており、
前記制御手段は、前記データ書き込み期間には、前記第1および第2のスイッチング素子をオンとし、前記電流源に、前記発光期間に前記発光手段に流す電流に応じた電流を流すことにより、前記単一の蓄積容量手段のみに電荷を蓄積させて、前記ゲート端子を前記電流源に流れる電流に応じた電位にし、前記発光期間には、前記第1および第2のスイッチング素子をオフとして、前記トランジスタ素子を介して前記発光手段に電流を流し、この際、前記書き込み制御線の電位を、前記データ書き込み期間における前記書き込み制御線の電位から変化させることにより、前記ゲート端子と前記第2端子との間の電位差と前記駆動閾値電圧の差が、前記データ書き込み期間におけるよりもより小さくなるようにし、
前記書き込み制御線は、画素毎に設けられ、前記制御手段は、前記書き込み制御線の、前記発光期間における電位と前記データ書き込み期間における電位との電位差を、各画素に対して個別の値にすることを特徴とする画像表示装置。 - 前記トランジスタ素子はn型トランジスタであり、前記発光期間における前記書き込み制御線の電位を、前記データ書き込み期間における前記書き込み制御線の電位よりも低くすることを特徴とする請求項1に記載の画像表示装置。
- 前記トランジスタ素子はp型トランジスタであり、前記発光期間における前記書き込み制御線の電位を、前記データ書き込み期間における前記書き込み制御線の電位よりも高くすることを特徴とする請求項1に記載の画像表示装置。
- 前記発光期間に前記発光素子に流れる電流が0になるようにして黒レベルの表示を行わせる際に、前記データ書き込み期間に前記電流源に流す電流をibaseとし、
前記トランジスタ素子の前記駆動閾値をV T とし、前記第1端子の電位をV DD 、前記ゲート端子の電位をV g とした時に前記第2端子と前記第1端子の間に流れる電流をiとして、前記トランジスタ素子がp型トランジスタの時にはV g =V DD −V T −(2i/βL) 1/2 、前記トランジスタ素子がん型トランジスタの時にはV g =V DD +V T +(2i/βL) 1/2 を成立させるパラメータβLを用いて、
前記書き込み制御線の、前記発光期間における電位と前記データ書き込み期間における電位との電位差δVrを、(2ibase/0.5βL)1/2≦δVr≦(2ibase/1.5βL)1/2 とすることを特徴とする請求項1乃至請求項3のいずれか一つに記載の画像表示装置。 - 前記電位差δVrを、(2ibase/0.9βL)1/2≦δVr≦(2ibase/1.1βL)1/2 とすることを特徴とする請求項4に記載の画像表示装置。
- 前記発光手段は、有機EL素子であることを特徴とする請求項1乃至請求項5のいずれか一つに記載の画像表示装置。
- 電流注入により発光する発光手段と、
前記発光手段に第1端子が接続され、ゲート端子と前記第2端子との間に印加される、所定の駆動閾値電圧よりも高い電位差に応じて前記第2端子と前記第1端子の間に電流を流す第1のトランジスタ素子と、
前記第1のトランジスタ素子とカレントミラー回路を構成する第2のトランジスタ素子と、
前記ゲート端子に接続された単一の蓄積容量手段と、
前記蓄積容量手段を介して前記第1のトランジスタ素子の前記ゲート端子に接続された書き込み制御線と、
前記第2のトランジスタ素子のゲート端子と第1端子の間に接続された第1のスイッチング素子と、
電流源と、
前記第2のトランジスタ素子の前記第1端子と前記電流源の間に接続された第2のスイッチング素子と、
前記発光手段を発光させる発光期間と、該発光期間の前のデータ書き込み期間とで、前記書き込み制御線の電位、前記第1および第2のスイッチング素子の接続状態、および前記電流源の電流を切り替える制御手段と、
を備え、
前記発光手段と、前記トランジスタ素子と、前記蓄積容量手段と、前記第1および第2のスイッチング素子は画素毎に設けられており、
前記制御手段は、前記データ書き込み期間には、前記第1および第2のスイッチング素子をオンとし、前記電流源に、前記発光期間に前記発光手段に流す電流に応じた電流を流すことにより、前記単一の蓄積容量手段のみに電荷を蓄積させて、前記ゲート端子を前記電流源に流れる電流に応じた電位にし、前記発光期間には、前記第1および第2のスイッチング素子をオフとして、前記第1のトランジスタ素子を介して前記発光手段に電流を流し、この際、前記書き込み制御線の電位を、前記データ書き込み期間における前記書き込み制御線の電位から変化させることにより、前記第1のトランジスタ素子の前記ゲート端子と前記第2端子との間の電位差と前記駆動閾値電圧の差が、前記データ書き込み期間における前記第2のトランジスタの前記ゲート端子と第2端子との間の電位差と前記駆動閾値電圧の差よりも小さくなるようにし、
前記書き込み制御線は、画素毎に設けられ、前記制御手段は、前記書き込み制御線の、前記発光期間における電位と前記データ書き込み期間における電位との電位差を、各画素に対して個別の値にすることを特徴とする画像表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004188834A JP4834876B2 (ja) | 2004-06-25 | 2004-06-25 | 画像表示装置 |
TW094113051A TWI270841B (en) | 2004-06-25 | 2005-04-25 | Image display device |
US11/159,328 US7636073B2 (en) | 2004-06-25 | 2005-06-23 | Image display apparatus and method of driving same |
CNB2005100813455A CN100461245C (zh) | 2004-06-25 | 2005-06-27 | 图像显示装置及其驱动方法 |
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JP2004188834A JP4834876B2 (ja) | 2004-06-25 | 2004-06-25 | 画像表示装置 |
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JP4834876B2 true JP4834876B2 (ja) | 2011-12-14 |
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JP (1) | JP4834876B2 (ja) |
CN (1) | CN100461245C (ja) |
TW (1) | TWI270841B (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007271968A (ja) * | 2006-03-31 | 2007-10-18 | Canon Inc | カラー表示装置及びアクティブマトリクス装置 |
JP5124985B2 (ja) * | 2006-05-23 | 2013-01-23 | ソニー株式会社 | 画像表示装置 |
JP2008134346A (ja) * | 2006-11-27 | 2008-06-12 | Toshiba Matsushita Display Technology Co Ltd | アクティブマトリクス型表示装置 |
JP5119889B2 (ja) * | 2007-11-26 | 2013-01-16 | ソニー株式会社 | 表示装置及びその駆動方法と電子機器 |
JP5236324B2 (ja) * | 2008-03-19 | 2013-07-17 | グローバル・オーエルイーディー・テクノロジー・リミテッド・ライアビリティ・カンパニー | 表示パネル |
KR101509114B1 (ko) * | 2008-06-23 | 2015-04-08 | 삼성디스플레이 주식회사 | 표시 장치 및 그 구동 방법 |
JP5107824B2 (ja) * | 2008-08-18 | 2012-12-26 | 富士フイルム株式会社 | 表示装置およびその駆動制御方法 |
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KR100778409B1 (ko) * | 2003-10-29 | 2007-11-22 | 삼성에스디아이 주식회사 | 화상 표시 패널 및 그 구동 방법 |
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US20060007074A1 (en) | 2006-01-12 |
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JP2006011094A (ja) | 2006-01-12 |
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CN100461245C (zh) | 2009-02-11 |
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