TW200816143A - Organic light emitting diode display and driving method thereof - Google Patents
Organic light emitting diode display and driving method thereof Download PDFInfo
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- TW200816143A TW200816143A TW096123879A TW96123879A TW200816143A TW 200816143 A TW200816143 A TW 200816143A TW 096123879 A TW096123879 A TW 096123879A TW 96123879 A TW96123879 A TW 96123879A TW 200816143 A TW200816143 A TW 200816143A
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- organic light
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- emitting diode
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Classifications
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- G—PHYSICS
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- 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
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- 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]
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- 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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- G—PHYSICS
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- 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]
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- 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
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- 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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
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- G—PHYSICS
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- 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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0219—Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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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
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G3/2096—Details of the interface to the display terminal specific for a flat panel
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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
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Description
200816143 九、發明說明: 【發明所屬’之技術領域】 本發明係有關於一有機發光二極體顯示器,特別是 種在目箣δ孔框轉換到下一訊框之前移除充電於電晶 體閘電極之電壓的有機發光二極體顯示器及其驅動方 法0 【先前技術】
最近’有各種藉由降低重量與體積來減少陰極射線 官之缺點的平面顯示器裝置被發展出來。這些平面顯示 :裝置包含液晶顯示器(以下稱為“LCD”)、場發射顯示 f乂下稱為” fed,,)、電槳顯示(以下稱為” PDP,,)、以及 免教發光(以下稱為,,EL”)等顯示器裝置。 在這些平面顯示器之中,虹顯示器裝置是一稃 二:與電洞的復合而發射出一種榮光物質的自體 合::EL顯示器裝置主要被分類為—種使用無機 :物:::顯示器裝置以及-種以螢光材料的有機 口 機顯示器裝置。至今這種 調是一插目士 / ⑼不為裝置被 視角、决;壓驅動、自體發光、細薄外觀、寬 祝角、快逮反應速度、 見' 器。 M及间對比寺優點的後世代顯: 有祛EL頌示器裝置包 輪層、一笋井厚 ^ 包子注入層、一電 X先層、一電洞傳輪 其中,帝工、+ M及電洞〉主入 毛子,主入層置於陰極盥
一 %極之間。在有機E 7 200816143 示器裝置中,如果一預設電壓作用於陰極與陽極之間, 從陰極產生的一電子將經由電子注入層與電子傳輸層 向發光層移動,而且從陽極產生的一電洞將經由電洞注 入層與電洞傳輸層向發光層移動。因此,由電子傳輸層 與電洞傳輸層所提供的電子與電洞將於有機發光層復 合且產生光。 使用有機EL相關技術的有機發光二極體顯示器之 每一像素的電路結構如「第1圖」所示。 「第1圖」是一個等效電路圖用以表示相關技術的 有機發光二極體顯示器中之一像素。 參考「第1圖」,有機發光二極體顯示器的每一像 素包含一開關電晶體S_TR1、——儲存電容Cst、一有機 發光二極體OLED、以及一驅動電晶體D—TR1。其中, 開關電晶體S_TR1是藉由閘電路GL提供之掃描脈衝而 開啟以切換由資料電路DL提供之資料電壓。開關電晶 體S_TR1提供之資料電壓充電於儲存電容Cst之中。有 機發光二極體OLED由具有高電源電壓VDD之電源端 所提供之驅動電流而開啟發光。驅動電晶體D_TR1藉 由開關電晶體S_TR1之資料電壓或儲存電容Cst之充電 電壓來驅動有機發光二極體OLED。 開關電晶體S_TR1是一種N型金氧半導體(NMOS) 電晶體,具有一閘電極、一汲電極、以及一源電極。其 中,閘電極是連接到閘電路GL。汲電極連接到資料電 200816143 路DL。源電極通常連接到儲存電容Cst與驅動電晶體 D—TR1的閘電極。開關電晶體S—TR1是藉由一提供自 閘電路GL之掃描脈衝而開啟以將資料電路DL之資料 電壓給儲存電容Cst與驅動電晶體D_TR1。 儲存電容Cst之一端通常連接到開關電晶體S_TR1 與驅動電晶體D_TR1之閘電極,而儲存電容Cst之另一 端則接地。提供自開關電晶體S_TR1之資料電壓充電於 儲存電容Cst。當一提供自切換開關電晶體S—TR1之資 料電壓沒有作用於驅動電晶體D—TR1之閘電極時,儲 存電容Cst釋放出一放電電壓去維持該驅動電晶體 D_TR1之閘電壓。因此,雖然原提供自開關電晶體 S—TR1之資料電壓沒有提供,驅動電晶體D—TR1仍能 藉忐儲存電容Cst之放電電壓維持開啟狀態,並持續一 段因儲存電容Cst所保持的維持週期。其中,當提供自 開關電晶體S_TR1之資料電壓沒有作用於驅動電晶體 D—TR1之閘電極時,驅動電晶體D—TR1的閘電壓貝U ^亭 止。 有機發光二極體OLED具有一個陽極與一個陰極。 在此,陽極連接到一提供高電源電壓VDD之電源端。 陰極連接到驅動電晶體D_TR1之汲電極。 驅動電晶體D_TR1是一種N型金氧半導體(NMOS) 電晶體,具有一閘電極、一汲電極、以及一源電極。其 中,閘電極通常連接到開關電晶體S_TR1之源電極與開 9 200816143 關電晶體S_TR1。汲電極連接到有機發光二極體OLED 之陰極。源電極則接地。驅動電晶體D_TR1藉由開關 電晶體S_TR1所提供給閘電極之資料電壓而開啟,或藉 由提供給閘電極之開關電晶體S_TR1之放電電壓而開 啟,該放電電壓用以將流入有機發光二極體OLED之驅 動電流切換至接地點。藉由這樣的方式,流入有機發光 二極體OLED之驅動電流被切換到接地點,因此有機發 光二極體OLED猎者由南電源電壓VDD所產生的驅動 電流而發光。 在相關技術的有機發光二極體顯示器中包含著具 有上述等效電路的像素,雖然由於直流電壓作用於閘電 極,使得驅動電晶體D_TR1從開啟之狀態變換成一關 閉狀態,閘放電電壓依然維持著。因此,產生一個問題 就是驅動電晶體D_TR1會退化。特別在相關技術的有 機發光二極體顯示器中,因為一充電於驅動電晶體 D一TR1之閘電極的電壓從先前訊框維持到目前訊框,所 以在螢幕上產生殘像。 【發明内容】 本發明是為了去解決上述問題。因此,本發明之目 的是提供一種有機發光二極體顯示器及其驅動方法,用 以在目前訊框變換到下一訊框之前移除一充電於驅動 電晶體閘電極之電壓。 本發明之另一目的是提供一種有機發光二極體顯 10 200816143 示器及其驅動方法,用以在一訊框下移除一驅動電晶體 閘放電電壓而防止驅動電晶體退化。 本發明之又一目的是提供一種有機發光二極體顯 示器及其驅動方法,用以在目前訊框變換到下一訊框之 前移除一驅動電晶體閘放電電壓而消除螢幕殘餘影像。 為了達到本發明的這些目的,根據本發明之實施例 之有機發光二極體顯示器包括一顯示器面板,其具有複 數個包含一有機發光二極體之像素;一計時控制器,其 控制輸入影像資料之驅動時間與控制更新電壓之提供 時間;一個資料驅動器,其將計時控制器輸出給目前訊 框的數位資料轉換成類比資料電壓,並將其提供給像 素,之後再提供更新電壓給藉由計時控制器的控制所選 擇出的像素;一個閘驅動器,其主要提供一個掃描脈衝 給目前訊框第一水平週期以選擇要提供資料的像素,之 後再提供一個掃描脈衝給目前訊框第二水平週期『從與 計時控制器的控制一致的像素之中去選擇被提供更新 電壓的像素』。 更新電壓為一零伏特電壓。 更新電壓為一負電壓。 - 計時控制器產生更新電壓且將其作用於資料驅動 器。 本發明之有機發光二極體顯示器更包含一更新電 壓產生器,其更新電壓為一電源電壓作用所產生。 11 200816143 :時控制器提供—遮蔽訊號 一水平週期與第二水平週期。 勤的以调整弟 第—水平週期與第二水平週士 第一水平週期盥第_ …半水平週期。 開驅動器於tr;=期,。 所有在顯示器面板_脈心選擇 閘驅動器於第— 少-個在顯示器二不提供-掃描脈衝給至 :動有機發光二極體顯示器之 一具有稷數個包含-有機發光二極體之包含 面板,此方法包括產生—更新電壓像素的顯示器 衝於第一水平週期給目前訊框以谐要^ 共一掃描脈 素,將-輪入給目前訊框的數位 供貧料的像 ㈣並將其提供給藉*-掃描脈衝於V成ΖΓ資料 選擇出的像素;其次,提供 脱水平週期所 水平週期以選擇在像素之中被提二更=前訊框第二. :提供更新電I給藉由一掃描脈衝更:目,味 平週期所選出的像素。 衡於目則矾框第二水 更新;壓為-零伏特電屋。 ,更新電壓為一負電壓。 “ 方去中,第一水平週期鱼 半水平週期。 /、气—水平週期各為一 在本方去中,第一水平週 弟一水平週期不相 12 200816143 同。 在本方法中,所有在纟日二抑 平週期選擇被料更新^Γ面板上之像素於第二水 一射Ha 〃电壓之像素的步驟中藉由提供 抑^田脈衝而被選擇出來。 I本方/A中,於第二水平週期在選擇被提供更新+ 壓之像素的步驟中一掃 “、 示器面板上之像素。 卜W…至個在顯 【實施方式】 以I— +發明之平面顯示器 合圖式詳細說明如τ。 &…、_方故將配 e料3」為根據本發明實施例的-有機發光二極 版續不态之結構圖。 10。包含一顯干二」本’x明之有機發光二極體顯示器 ΰ _不态面板110、一 Ρ>阿、+ , 計時控制器、13〇、一資物。更1:昼產生器12〇、-150。_ 胃#動5 140、以及—閘驅動器 」、中’1源電壓作用於更新電壓產生器、12〇以 麗二=㈣除驅動電晶體D-TR1之間放電電 門且=30控制輸入系統之影像資料的驅動時 ^從計!^控!"更新電壓的提供時間。資料驅動器⑽ 、文次、才工"彳态130輪入到目前訊框之·數位資料轉換為 :頁比貝料電壓輕其提供給顯示器面板11G之像素,、: iim電壓產生器m所提供之更新電壓給顯示器面 與計時控制器m之資料驅動控制訊號DDc 13 200816143 j的像素。開驅動器15Q於-半水平週期中連續地為 目±丽訊框提供—掃描脈衝給閘電路GL1到GLn,然後連 續地於一半水平週期根據計時控制器13 0之閘驅動控制 訊號而提供—掃描脈衝給閘電路GL5到GLn。所控制。 裣數個貝料電路DL1到DLm與複數個閘電路Gy -到GLn彼此為垂直交叉。包含有機發光二極體〇led •之像素設置於交叉部份。「第Ϊ圖」之等效電路於是形 $ 成於像素上。 更新電壓產生器120受到電源電壓作用而產生一更 新電壓去移除驅動電晶體D—TR1 4閘放電電壓,從而 f其提供給資料驅動器14〇。其中,更新電壓產生器12〇 促供一令伏特更新電壓或一負更新電壓。這是因為只有 =直流電壓被提供給驅動電晶體d—tri之閘電極,一 零伏特更新電壓或一負更新電壓被提供給驅動電晶體 • D一TIU以移除驅動電晶體D—加之閘放電電壓。另一 方面’在本發明中,更新電壓產生器120產生—更新電 、壓。然而,它的應用不只限於此。例如,計時控制器13〇 -可以產生一更新電壓而將其提供給資料驅動器140。 。十日4制益130被-系統如電視機或電腦螢幕等輸 入一影像資料而提供-數位資料給資料驅動器14〇,且 同日守控制資料之驅動。 另外’计日守控制器130運用與系統時間訊號CLK -致之系統水平/垂直同步訊號H與v產生—資料驅動 14 200816143 控制訊號脈、-更新控制訊號Rcs、—閑驅動控制訊 號GDC、以及一遮蔽訊MMKS。資料驅動控制訊號ddc 與更新控制訊號rcs提供給資料驅動器m驅動控 制訊號GDC與遮蔽訊號MKS提供給閑驅動哭15〇。其 中,資料I鳴控制訊號獄包含1源偏料鐘s. 一電源料㈣SSP、以及—電源輪出許可訊號S0E 等。閘驅動控制訊號GDC包含1起始_⑽盘__ 閑輸出許可訊號GOE等。特別的是,更新控制訊號奶 控制資料驅動H 14Q.之更新電壓的提供時間。遮蔽訊號 MKS控制掃描脈衝的水平週期。 資料驅動器140回應一由計時控制器13〇所提供之 資料驅動控制訊號獄以將—由計時控制器130所輸 入之數位資料轉換成一類比資料電星並將其提供給顯 不為面板110之像素。其中,資料驅動器、14〇在一更新 電壓產生12G所提供之更新電壓的基礎下將—經由計 時控制器13 G所提供之數位f料轉換成_類比資料電摩 並將其提供給資料電路DL1到DLm。其中,_領比二 料電壓係實現為顯示器面板11〇的有機:極: OLED上之灰階。 "^ —貢料驅動器14G提供—f料給目前訊框,缺後為了 目前訊框而提供—更新電壓給藉由計時控制器130之更 新控制訊號RCS所選擇出的顯示器面板…上之像素。 參考「第3圖」,資料驅動器⑽提供—資料^ 15 200816143 由知^田脈衝而選擇出的像 M ,、在此,於目前訊框的半水 千週期,閘驅動器15〇連 〇Ll 5ι, ρτ , ⑺地、知插脈衝給閘電路 就提供二果提供一資料到像素,則資料驅動器140 ,共—更新電壓到由掃描脈衝所選擇出之像素。在 前訊框的半水平週期,閘驅動器…連續地提 ==給閘電路GL5到GLn。其中,更新電壓被提 供到驅動電晶體D TR1之π & ,— 之閘笔極以除去目前訊框之閘 π 士 毛月月匕夕句防止驅動電晶體的退化並 同恰除去螢幕的殘餘影像。
閘驅動器15 0幺γ Q X 為了目則訊框要提供資料給閘電路 到GLn’所以其連續地提供—掃描脈衝,然後再回 閘驅動控制訊號GDC與「第3圖」所示之計時控制 -bo所*供之閘偏移時鐘Gsc以連續地提供一更新 用之掃描脈衝給閘電路GL5到GLn。如此,閘驅動器 \50連續地於—半水平週期提供-掃描脈衝,,然後再連 續地於—半水平週期根據計時控制ϋ 130之遮蔽訊號 MKS提供-掃描脈衝。在此,如果提供—資料,然後提 供:更新電壓給目前訊框,則資料之灰階值將實現於顯 :态面板110之每一像素,如「第4圖」所示。特別的 是,被提供更新電墨的區域,其資料灰階值將無法實現 並且為一顯示黑暗的區域。 另一方面,在本發明中,閘驅動器150於一半水平 週期藉由提供一掃描脈衝來選擇被提供資料之像素,以 16 200816143 二:衣’水平週期根據遮蔽訊號MKS提供一掃扩 更新電壓的像素。然而,-掃描二 分之- JC平=此。例如,間驅動器150可以藉由於三 像::週期提供-掃描脈衝來選擇被提供資料之 像素,亚且同時可以藉由於三分之十之 ::號_提供一掃描脈衝來選擇被提二據: 例如,更靳夕匕的應用不只限於此。 GL1到GLn。 ^地被攸供於所有閘電路 根據以上所述,本發搓 一更新命羅仏__ 月挺彳,、—育料電壓,然後提供 壓“士果'::5fl框去移除驅動電晶體之間放電電 、'、°果,本發明能夠防止驅動電S 幕的殘影。 勒书日日肢退化以及移除螢
I 非用f本發明以前述之較佳實施例揭露如上,缺立並 非用以限定本發明,任何熟 …、卫 發明之精神和範圍内,當可作4:= 脫離本 本發明之專利保護範圍須視;'說午明之查更所動附與因此 範圍所界定者為準。 哥所附之申請專利 【圖式簡單說明】 極體=!!本發明'之包含於相關技術之有機發光二 之中的-像素之等效電路圖; 17 200816143 第2圖係為本發明之有機發光二極體顯示器之結構 圖; 第3圖係為本發明之有機發光二極體顯示器的操作 特徵示意圖;以及 第4圖係為本發明之有機發光二極體顯示器的灰階 示意圖。 【主要元件符號說明】 巍 100.............有機發光二極體顯示器 110........... ,.顯示器面板 120............ ..更新電壓產生器 130............... ..計時控制器 140........... ..貧料驅動為 150........... ..閘驅動器 GL1 〜GLn ·. 閘電路 DL1 〜DLm · ..資料電路 ® S TR1....... ...開關電晶體 D TR1........ ....驅動電晶體 Cst·.·......... ....儲存電容 OLED...... ...有機發光二極體 VDD......... ....高電源電壓 DDC........... ....資料驅動控制訊號 RCS......... ...更新控制訊號 MKS......... ....遮蔽訊號 18 200816143 GDC............閘驅動控制訊號 Η ............系統水平同步訊號 V ................系統垂直同步訊號 CLK............系統時間訊號 SSC............電源偏移時鐘 SSP.............電源起始脈衝 SOE.....…電源輸出許可訊號 GSC............閘偏移時鐘 GSP............閘起始脈衝 GOE…………閘輸出許可訊號
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Claims (1)
- 200816143 十、申請專利範圍: 】·-種有機發光二極體顯示器 —顯示器面板,該顯亍哭而. 有機發光二極體之像素:〜面板具有複數.包含— 料之i:時控制器’該計時控制器控制-輪d 抖之驅動,間與控制—更新電壓之提供時:〜像資 貪料驅動器,該資料驅 輻出給目前訊框之—數位 /十盼控制器 壓且將其提供給該萨 、"’ τ、、成一類比資料電 給根據該計時^哭 素’然後提供該更新電壓 素;以及^之控制而選擇出之該複數個像 -閘驅動器,該閘驅動器於目前訊框 週期提供—掃描脈㈣該# = 之像素,然後再於目前訊框 、反叔么貝枓 計時控制器之控制而提供該掃描脈衝以 數個將被提供該更新電壓之像素。 '又 2.如申請專利範圍第1項所述之有機發光二極斷 器,其中該更新電塵為零伏特電塵。 ^下 3·如申請專利範圍第1項所述之有機發光二極體顯示 器,其中該更新電壓為負電壓。 … 4·如申4專利乾圍第1項所述之有機發光二極體顯示 器,其中該計時控制器產生該更新電屢並將該更新電 壓提供給該資料驅動器。 20 200816143 5.如申請專利笳囹 ^ . . ® 項所述之有機發光二極體~ - -,其中更包含_更_產生 广- 器接收一電源命厭r/太丄 更新琶壓產生 摩电反以產生該更新電壓。 6·如申請專利笳囹笙 弟項所述之有機發光二極體磲- ^其中該計時控制器提供一遮號 =不 正該弟—水平週期與該第二水平週期。 7·:申:中6項所述之有機發光二極體顯示 梢Γ州_帛,撕別為半 8·如申請專利範圍第 哭甘击士卸乐6項所述之有機發光二極體顯亍 的八中5亥呆—水平週期與該第二水平週期不相因 9· 專利範圍第1項所述之有機發光二極體顯示。 二選中擇動器於該第二水平週期提供該掃福: 衝&擇在相㈣面板上之所相 10·如申請專利範圍第!項所述之有機 ^素/ 突、^ ^ 巧俄知尤—極體顯示 印、、中该閘驅動器於該第 描脈衝給至少一個在兮顯不何供该掃 像素。 们在相不盗面板上之該複數個 Π. —種驅動有機發光二極體顯示器之方法,包括· 產生該更新電壓;- · 、於目前訊框之第-水平週期提供掃描脈衡 擇被&供資料之複數個像素; 、 將輸入給該目前訊框之數位資料轉換成類比資 21 816143 料電壓並將其提供淡 — 描脈衝所選擇出之該複:個7^ 再於目前訊框之哕笛一, 以從該複數個像平週期提供掃描脈衝 像素,·以及 擇破提供該更新電壓之該 12. 仏斧由Λ框之&二水平週期提供該更新電堡 ::由该择描脈衝所選擇出之該像素。 :專利範圍第u項所述 壓。 〃中該更新電壓為零伏特電 1 如申請專利範圍帛U項 極體顯示器之方法,動有機發光二 14 月乾圍第11項所述之驅動有機笋光一 極體顯示器之方法 勤有誠表先- 水平週期分別為半水平水平週期與該第二 15.:3專範圍第11項所述之-動有機發光二 才5 頭不态之方法,i 水平週期不相同。卜水平週期與該第二 16如申請專利範圍第n項所述之驅動有機發光二 ^體^不器之方法,其中所有在該顯示器面板上之 : 擇被提供該更新電壓之該複數 口:素的步驟中於該第二水平週期藉由提 才田脈衝而被選擇。 22 200816143 17.專:“'圍第11項所述之驅動有機發光-—之方法,其t於該第 被提供該更新電 描脈衝不提供給至少—個在該_ 複數個像素。 败上之Θ23
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| KR20080002131A (ko) | 2008-01-04 |
| US20080001863A1 (en) | 2008-01-03 |
| FR2904460A1 (fr) | 2008-02-01 |
| TWI376664B (en) | 2012-11-11 |
| FR2904460B1 (fr) | 2012-09-28 |
| DE102007029832B4 (de) | 2017-02-23 |
| KR101310912B1 (ko) | 2013-09-25 |
| GB0711103D0 (en) | 2007-07-18 |
| JP2008015513A (ja) | 2008-01-24 |
| CN100555386C (zh) | 2009-10-28 |
| GB2439801A (en) | 2008-01-09 |
| DE102007029832A1 (de) | 2008-01-10 |
| CN101097690A (zh) | 2008-01-02 |
| GB2439801B (en) | 2008-12-17 |
| US8139002B2 (en) | 2012-03-20 |
| JP5408847B2 (ja) | 2014-02-05 |
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