TWI223713B - Method and system for testing driver circuits of AMOLED - Google Patents
Method and system for testing driver circuits of AMOLED Download PDFInfo
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- TWI223713B TWI223713B TW092107304A TW92107304A TWI223713B TW I223713 B TWI223713 B TW I223713B TW 092107304 A TW092107304 A TW 092107304A TW 92107304 A TW92107304 A TW 92107304A TW I223713 B TWI223713 B TW I223713B
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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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
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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
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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
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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]
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- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Description
1223713 五、發明說明(l) 一、 【發明所屬之技術領域】 本發明係提供一種測試方法及系統,於鍍上有機發光 二極體前,測試一主動式有機發光顯示器之驅動電路。 二、 【先前技術】 隨著科技的進步,螢幕顯示技術也跟著日新月異。繼 發光一極體(L E D )顯示技術之後,市面上出現了 一種全新 的平面顯示技術,這種新技術稱為有機發光二極體 (organic light emitting diode)顯示技術,簡稱為 0 L E D。有機發光二極體需要一個驅動電路來驅動。以主動 式發光顯示技術(active matrix organic light emitting display,簡稱AMOLED)為例,驅動電路產生一 電流來驅動有機發光二極體發光的,發的光可為紅、綠、 藍等單色’甚至可以達到全彩的效果。有機發光二極體不 僅可以捲起來帶著走,還完全沒有視角問題。同時壽命長 達數千小時,而且耗電量非常低。由於有機發光二極體有 上述的優點,因此極有可能取代傳統的發光二極體,成為 下一代顯示技術的主流。 利用有機發光二極體製作一顯示器時,每一個畫素 (pixel)需要一個有機發光二極體,也就是每一個畫素需 要一個驅動電路。因此一個顯示器會有數以萬計甚至百萬 計的驅動,路。如何有效地測試這些驅動電路便是一個很 大工权。第一圖、第二圖和第三圖為目前較常使用的驅動
第5頁 1223713 五、發明說明(2) 電路。習知測試驅動電路的方法是在鑛上有機發光二極體 OLED後,由寫入掃描線(Wri te scan 1 ine)WSL各別致能單 一驅動電路,再由資料線(data line)DL輸入一電壓準 位。此電壓準位經由此一驅動電路轉換為一電流信號I, 此電流信號I驅動有機發光二極體〇LED而使OLED發光。測 試人員便依據輸入之電壓準位,目測有機發光二極體儿^ 之發光壳度是否正常,來判斷此驅動電路可否正常工作。 此習知之方法會因測試人員主觀認定的差異,而造成測試 結果不精確。更嚴重的問題是,若某一個驅動電路無法^ f工作’連帶鍍在該驅動電路之有機發光二極體儿⑽亦跟 著報廢,無法回收,而導致成本的提高。因此,便需要一 種測試方法,可於鍍上有機發光二極體〇LED之前, 準確地測試每一個驅動電路。 '' 【發明内容】 妒,本t η 1 一種方法及系、洗,於鍍上有機發光二極 之驅動電路,盆中主翻々古德於丄動式有機發先顯不器 r 動式有機發光顯示器包含-輸入襯墊 1 npu pad)、一寫入掃描線及一資料線。 本發明所提供之測試方 所有的驅動電路皆測試完畢 上之一資料信號。經由輸入 掃描線,以選擇下一個欲測 法如下:重複以下步驟,直到 、、二由輸入襯墊,設定資料線 概墊,輸入一電壓準位至寫入 試之一驅動電路。量測流經測 1223713 五、發明說明(3) 分析此一電流信號,以判斷此一驅 試元件之一電流信號 動電路可否正常工作 本發明所提供之測試系統包含一資料輸入器(data input dev ice) 像素選擇器(pixel selection evice)及里測 1 置(measurement device)。資料輸 ^裔與輸入概塾相連接,用來設定並輸入資料信號。像素 $擇器亦與輸入概塾相連接,用來輸入一選擇信號,以選 欲測試^驅動電路。量測裝置與一電源及輸入襯墊相連 用來里測流經測試元件之一電流信號,以判斷此驅動丨_ 電路可否正常工作。 四、【實施方式】 本發明提供一種在鍍上有機發光二極體之前,測試一 =動式有機發光顯示器之驅動電路的方法。假設此主動式 機發光顯示器具有複數個驅動電路,用來驅動複數個有 墊發光二極體。此主動式有機發光顯示器包含一輸入襯 上、一寫入掃描線及一資料線。輸入襯墊用來輸入一選擇 ^旒,以選擇欲測試之一驅動電路,及用來輸入一資料信 =有機發光二極體發光。寫入掃描線接收來自輸入襯 钟之選擇信號,用來致能(enable)或失能(disable)欲測 武之驅動電路。資料線接收來自輸入襯墊之資料信號,將 ^資料信號傳送至欲測試之驅動電路。第四圖為二用本 發明之方法測試之一驅動電路(尚未鍍上有機發光二極
!223713 五、發明說明(4) 體)。如第四圖所示,驅動電路包含—第_ 第二電晶體Μ43及一測試元件1〇〇。第一電曰$ ^ = Μ41、 電晶體Μ43各包含一源極(s〇urce)s、—體MU及第二 汲極((1以111)0。其中,第一電晶體}^41之°=1:6炻及 接至主動式有機發光顯示器之資料線儿,/、二“或汲極)連 之閘極G連接至主動式有機發光顯示器之 電晶體M4 1 :二:晶體M43之汲極D(或源極)在鍍’機:描,:SL丄 Ϊ機發明之測試 = 體之別’先裝置一測試元件100於第二電晶 ^3之汲極D(或源極)’以形成一測試迴 二電晶體“43->測試元件〗〇〇_>接地)。 源VDD-〉弟 五圖ΐ:Γ:提^測試方法如第五圖所示。配合第四、 已 >=:二在步驟501時’檢查是否所有驅動電路都 定資料:DT卜右!.:則執行步驟5 〇 3,經由輸入襯墊,設 墊It 一 ίίΪ料信號。在步驟505時’經由輪入襯 一驅^電路。^位至寫入掃描線WSL,以選擇欲測試之 M41為一P通道薄膜驅動電路為例’由於第-電晶體 線WSL合傳送一'低堡 因此在步驟5〇5時,寫入掃描 驄私/傳 低準位電壓至第一電晶體M41之閘極G,以 ^ f 電晶體M41導通’使得在步驟5 0 3中已設定之資料 能輸入此&驅動電路。在步驟5〇7時,量測流經測試元 測試迴之路一串電/信號。由於欲擷取此電流信號需與上述之 <格甲% ’而第二電晶體M43之汲極D(或源極)與測試
1223713 五、發明說明(5) 元件100之間,以及測試元件100與接地之間均已固定,無 法串聯一量測裝置102,故_聯此量測裝置102
與節間,以量測此電流信號。在步驟509時',分析此 一電流信號,以判斷此一驅動電路可否正常工作;若判斷 結果能正常工作,則回到步驟5〇 1,繼續檢查是否所有的 驅動電路都已測試完畢。若尚有驅動電路未測試完畢,則 繼續執行步驟503、5〇5、5〇7及5〇9,測試下一個驅動電 路,直到所有的驅動電路都測試完畢為止,才會執行步驟 511,結束整個測試流程。而若是在步驟5〇9中測試發現此 一驅動電路無法正常工作,則將這一個驅動電路的位置紀 錄下來,之後同樣地回到步驟5 〇 1,繼續檢查是否 驅動電路都已測試完畢。 — 有的 裝設此測試元件1 〇〇的目的在於形成一測試迴 量測裝置1 0 2量測流經測試元件1 〇 〇之電流信號,因 供 可利用一電阻做為此測試元件丨〇〇。由於有機I 此吾人 在被驅動時的阻值約為丨0歐姆至i 〇 Κ歐姆間,^ 了一 j體 其工作,此電阻之阻值需遠大於有機發光二極體之f知響 例如1 K歐姆至1 ο 0M歐姆間。在選擇電阻之阻值時,且值, 有機發光二極體阻值的1 0 〇倍或以上。除了電阻以$ η義為 可使用一薄膜電晶體做為測試元件1 〇 〇。同樣地,* 1亦 其阻值至少為有機發光二極體阻值的1〇〇倍或以上而選擇 電阻和薄膜電晶體外,其他任何元件可達成上述之。除了 皆可做為測試元件1 〇 〇。 目的,
1223713 五、發明說明(6) 以第四圖 線WSL為〇V時, 月匕’資料信號 值,其範圍介 有機發光二極 工作,則量測 0 · 〇 〇 2 # A。此 個灰階。在執 中’選擇64個 所掏取之電流 信號之數值應 之驅動電路為例。電源VDD為1 2V,寫入掃描 第一電晶體M41導通,整個驅動電路被致 可輸入此驅動電路。資料信號係為一電壓 於7 V〜1 Ο V。此一範圍共分為6 4個灰階,可使 體產生64種不同的亮度。若驅動電路可正常 到之電流信號的範圍應介於20 # A〜 一範圍對應資料信號之範圍,同樣可分為6 4 行步驟50 3時,資料信號於7V至10V之範圍 灰階之任一灰階。在執行步驟509時,分析 信號。若此一驅動電路正常工作,則此電流 落在相對應之灰階内。 〇 0 0身料信號亦可為一電流信號,其範圍介於20 “ A〜 一 2 # A,此一範圍同樣地分為6 4個灰階,可使有機發光 則體產生6 4種不同的亮度。若驅動電路可正常工作,則 =到流經測試元件1〇〇之電流信號的範圍亦介於2〇 #a〜 • υυ2 // A。 確it古^ t月之測试方法來測試AM0LED之驅動電路,可精 不;有:^整個測試流程。不會因為測試人員主觀的 门,而產生測試結果因人而異的缺點。 第六圖、第七圖中之雷 口 Y ^路亦為本發明之另一實施例 1223713 五、發明說明(7) ' —---- 二s第、四一圖中之驅動電路不同的是,第一電晶體M61、M71為 逼溥膜電晶體。因此欲致能第六圖、第七圖所示之驅 “路’寫入掃描線WSL上之資料信號需為高電壓準位。 此外’使用第七圖中之驅動電路的顯示器一 scaniine)EsL,用來在寫入-資料信= /肖除儲存於電容C71中之電壓。 表、> 在測試完成後,可正常工作之驅動電路便可鍍上有機 ^光一極體,並移走量測裝置1 〇 2。第八圖為第四圖之驅 一電路在錢上有機發光二極體後之電路圖。如第八圖所 :^此驅動電路中之有機發光二極體OLED與測試元件1〇〇 H ’但由於有機發光二極體OLED與測試元件1〇〇之阻值 々目、/〇〇倍以上,因此在鍍上有機發光二極體OLED後,流 試元件1〇〇之電流非常小,可忽略不計,故流經有機 I光一極體0LED之電流依然可以使其正常工作。 本發明之測試方法 圖所示之驅動電路,亦 不僅適用於第四圖、第六圖、第七 可適用於其他類似之驅動電路。 本發明同時揭霞一綠备妨 法。如望士 Fl仏 種糸統,用來執行上述之測試方 々弟九圖所示’此系統包一 選擇器23及一量測裝署1(1? 一3貝枓輸入益21、一像素 (C_eCW)31,、:輸置入襯塾:斗輸入器21透過-連接器 資料信號15。像幸選輸擇哭f二相連接’用來設定並輸入 豕常4擇益23亦透過連接器31,與輸入襯墊
1223713 五、發明說明
1 3相連接,用來輸入一選擇信號丨7, 電路1 1。量測裝置102亦透過連接器31,、奴測試之驅動 連接,且同時與一電源2 5相連接,用來量、襯墊1 3相 1 00之電流信號1 9,以判斷此特定驅動里路;机經測試元件 作。 動電路11可否正常工 ’不應以此做為限 圍所涵蓋之範_ 以上的敘述僅為說明本發明的精神 制。熟此技藝者可在不超越申請專利範 下,作適當的變化。
第12頁 1223713 圖式簡單說明 五、【圖示簡單說明】 第一圖為習知測試方法之第一驅動電路圖; 第二圖為習知測試方法之第二驅動電路圖; 第三圖為習知測試方法之第三驅動電路圖; 第四圖為利用本發明之方法測試之第一驅動電路圖; 第五圖為本發明測試方法之流程圖; 弟六圖為利用本發明之方法測試之弟二驅動電路圖, 第七圖為利用本發明之方法測試之第三驅動電路圖; 第八圖為鍍上有機發光二極體之驅動電路圖; 第九圖為本發明測試系統實施例之示意圖。 圖示元件符號說明 1主動式有機發光顯示器
11 驅動電路 1 5資料信號 1 9 電流信號 2 3像素選擇器 31連接器 1 0 2 量測裝置 1 3輸入襯墊 1 7選擇信號 2 1資料輸入器 25 電源 1 0 0 測試元件
第13頁
Claims (1)
1223713 六、申請專利範圍 一~ - 1. 一種鍍上一有機發光二極體(〇LED)之前測試一主動式 光顯示器UM0LED)之複數個驅動電路的方法,該主 輸^ 一,發光顯示器包含一輪入襯墊(input pad),用以 sCa〜選擇信號及一資料信號;一寫入掃描線(write 略· 1 in e)’根據該選擇信號,致能欲測試之一驅動電 ’以及一資料線(data line),用以將該資料信號傳送 中广碉試之該驅動電路,該驅動電路包含一測試元件,其 _剛試方法包含下列步驟:
檢查是否所有的驅動電路都已測試完畢,若否, 、執行步驟(b),若是,則執行步驟(c); (b )經由該輸入襯墊,設定該資料信號,繼續執行步 ^ (d); (c )結束測試工作; (d) 經由該輸入襯墊,設定該選擇信號,繼續執行步 騍(e); 、 (e) 量測流經該測試元件之一電流信號,繼續執行步 驟(η · w ),以及
否 (f )分析該電流信號,以判斷欲測試之該驅動電路可 正常工作,若是,則回到步驟(a ),繼續測試下一個驅 紀電路,直到所有的驅動電路都測試完畢為止,若否,則 、’、己錄該驅動電路的位置並回到步驟(a),繼續測試下一個 驅動電路。 如申請專利範圍第1項所述之方法,其中該測試元件為
第14頁 1223713 六、申請專利範圍 一電阻。 3 ·如申請專利範圍第2項所述之方法,其中該電卩且之阻值 介於lk〜100M歐姆。 4.如申請專利範圍第1項所述之方法,其中該測試元件為 一薄膜電晶體(TFT)。 法,其中該設定該資料 電壓值,且範園介於 5 ·如申請專利範圍第1項所述之方 信號的步驟中,該資料信號係為一 7V〜10V 〇 6·如申請專利範圍第1項所述之方 信號的步驟中,該資料信號係為一 ’:其中該設定該資料 2〇 〜0· 〇〇2 。 电^值,且範園介於 7 ·如申請專利範圍第5項或第6項戶 斷欲測試之該驅動電路可否正常工述之方法,其中該判 信號之範圍介於2〇va〜0·0 0 2 /α8士作之步驟中,當該電流 路可正常工作。 ”即表示該特定驅動電 8 · 種链上一有機發光二極體之4 光=之複數個驅動電路的系統所主動式有機發 不益包s—輸人襯塾1以輸\〜選=動式有機發光顯
__ 彳5旎及—資料信 1223713 六、申請專利範圍 號;一寫入掃描線,根據該選擇信號,致能欲測試之一驅 動電路;以及一資料線,用以將該資料信號傳送至欲測試 之該驅動電路,該驅動電路包含一測試元件,其中該系統 至少包含: 一資料輸入器(data input device),連接至該輸入 襯墊,用以設定該資料信號; 一像素選擇器(pixel selection device),連接至該 輸入襯墊,用以設定該選擇信號;以及 一量測裝置(measurement device),連接至該輸入襯 墊,用以量測流經該測試元件之一電流信號。 9. 如申請專利範圍第8項所述之系統,其中該測試元件為 一電阻。 10. 如申請專利範圍第9項所述之系統,其中該電阻之阻 值介於lk〜100M歐姆。 11. 如申請專利範圍第8項所述之系統,其中該測試元件 為一薄膜電晶體。 12. 如申請專利範圍第8項所述之系統,其中該資料輸入 器可產生一電壓值,且範圍介於7V〜10V。 13.如申請專利範圍第8項所述之系統,其中該資料輸入
第16頁 1223713
第17頁
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GB0400216D0 (en) * | 2004-01-07 | 2004-02-11 | Koninkl Philips Electronics Nv | Electroluminescent display devices |
JP2006139079A (ja) * | 2004-11-12 | 2006-06-01 | Eastman Kodak Co | 発光パネル用基板、発光パネル用基板の検査方法及び発光パネル |
US20070126728A1 (en) * | 2005-12-05 | 2007-06-07 | Toppoly Optoelectronics Corp. | Power circuit for display and fabrication method thereof |
EP2387021A1 (en) | 2010-05-12 | 2011-11-16 | Dialog Semiconductor GmbH | Driver chip based oled module connectivity test |
CN106782312B (zh) | 2017-03-08 | 2019-01-29 | 合肥鑫晟光电科技有限公司 | 一种像素电路及其驱动方法、显示装置 |
US11373566B2 (en) * | 2018-12-18 | 2022-06-28 | Innolux Corporation | Electronic device and manufacturing process thereof |
CN111341799A (zh) * | 2018-12-18 | 2020-06-26 | 群创光电股份有限公司 | 电子装置及其制作流程 |
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US5952789A (en) * | 1997-04-14 | 1999-09-14 | Sarnoff Corporation | Active matrix organic light emitting diode (amoled) display pixel structure and data load/illuminate circuit therefor |
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US6498592B1 (en) * | 1999-02-16 | 2002-12-24 | Sarnoff Corp. | Display tile structure using organic light emitting materials |
US6504524B1 (en) * | 2000-03-08 | 2003-01-07 | E Ink Corporation | Addressing methods for displays having zero time-average field |
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US6762735B2 (en) * | 2000-05-12 | 2004-07-13 | Semiconductor Energy Laboratory Co., Ltd. | Electro luminescence display device and method of testing the same |
JP4196531B2 (ja) * | 2000-09-08 | 2008-12-17 | 富士ゼロックス株式会社 | 表示媒体の駆動方法 |
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US6580657B2 (en) * | 2001-01-04 | 2003-06-17 | International Business Machines Corporation | Low-power organic light emitting diode pixel circuit |
US7330162B2 (en) * | 2002-02-28 | 2008-02-12 | Semiconductor Energy Laboratory Co., Ltd. | Method of driving a light emitting device and electronic equipment |
JP3989756B2 (ja) * | 2002-03-18 | 2007-10-10 | シャープ株式会社 | 表示装置およびその走査回路検査方法 |
US7067867B2 (en) * | 2002-09-30 | 2006-06-27 | Nanosys, Inc. | Large-area nonenabled macroelectronic substrates and uses therefor |
TW578001B (en) * | 2002-10-25 | 2004-03-01 | Toppoly Optoelectronics Corp | Method and system for testing driver circuits of AMOLED |
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