TW538650B - Driving method for electro-optical device, electro-optical device, and electronic apparatus - Google Patents

Driving method for electro-optical device, electro-optical device, and electronic apparatus Download PDF

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TW538650B
TW538650B TW090124199A TW90124199A TW538650B TW 538650 B TW538650 B TW 538650B TW 090124199 A TW090124199 A TW 090124199A TW 90124199 A TW90124199 A TW 90124199A TW 538650 B TW538650 B TW 538650B
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aforementioned
driving
signal
transistor
setting
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TW090124199A
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Mutsumi Kimura
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Seiko Epson Corp
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3258Control 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 voltage across the light-emitting element
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0404Matrix technologies
    • G09G2300/0417Special arrangements specific to the use of low carrier mobility technology
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active 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
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2018Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/122Pixel-defining structures or layers, e.g. banks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Liquid Crystal (AREA)

Description

538650 A7 ________ 五、發明説明(2)
Kimuia,et al·,Proc. IDW 99 ’ 171、M. Kimura,et al·,J. SID,. to be published、M. Kimura,et al·,Dig AM-LCD (請先閱讀背面之注意事項再填寫本頁) 2000’ to be published)。面積灰階法係與上述電導控制 (Conductance Control)法不同,不使用中間亮度之發光狀態 控制發光元件之發光狀態的方法者。即,將配置於矩陣狀 之畫素分割成複數之副畫素,選擇包含此等之副畫素之發 光元件之完全發光狀弋或完全非發光狀態之二種狀態之任 一者’變化複數副畫素中完全發光狀態之副俎素之總面 積,進行灰階顯示之方法者。於面積灰階法中,無需設定 對於中間亮度之發光狀態的中間電流値之故,可減低驅動 發光元件時電晶體之電流特性之影響,而達成畫質之均勻 性的提升。但是,此方法中,灰階數會由於副畫素數所限 制’爲使灰階數變多時,需將晝扒分割爲更多之副畫素之 故,晝素構造會有成爲複雜之問題。 對此而言,時間灰階法(M. Kimura,et al.,Proc. IDW 99,171、M. Kimura,et al.,Dig AM-LCD 2000,to be published,M. Kimura,et al.,Dig. SID 2000,912、K. Inukai, et al·,Dig. SID 2000, 924 )則被思考。 經濟部智慧財產局員工消費合作社印製 時間灰階法係變化在於一訊框之發光元件之完全發光 狀態,得灰階之方法。因此,無需如面積灰階法設置爲使 多灰階數之多數副晝素,可與面積灰階法倂用之故,做爲 數位灰階顯示之有利方法被眾所期望。 【解決發明之課題】 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 538650 A7 __B7_ 五、發明説明(3 ) (請先閱讀背面之注意事項再填寫本頁) 但是、「K. Inukai, et al.,Dig. SID 2000,924」所報告 之SES(Simulataneous-Erasing-Scan)的時間灰階法中,除了掃 瞄線,更需要重置線,而有使得發光面積縮小的問題。在 此,本發明之第1目的係提烘無重置線,得光電裝置之灰階 的方法。又,提供經由此驅動方法,驅動光電裝置爲第2目 的者。 【爲解決課題之手段】 經濟部智慧財產局員工消费合作fi印製 爲達上述第1之目的本發明之第1之光電裝置之驅動方' 法,屬於對應於掃描線和資料線之交點,具備光電元件, 和驅動此光電元件之驅動電晶體,和控制此驅動電晶體之 開關電晶體的光電裝置之驅動方法中,其特徵係包含將第1 之開啓信號藉由前述掃描線供予前述開關電晶體,對應於 供予前述第1之開啓信號期間,將選擇前述驅動電晶體之導 通或非導通的設定信號,藉由前述資料線及前述開關電晶 體,供予前述驅動電晶體的設定步驟,和將第2之開啓信號 藉由前述掃描線供予前述開關電晶體,對應於供予前述第2 之開啓信號期間,將前述驅動電晶體成爲非導通的重置信 號,藉由前述資料線及前述開關電晶體,供予前述驅動電 晶體的設定步驟者。爲此,藉由掃瞄線。於開關電晶體供 予開啓信號,對應於此,供給來自資料線之設定信號或重 置信號,不設置重置線地,可選擇光電元件之狀態。在 此、光電元件及光電裝置係意指控制電氣性發光狀態或光 學特性的元件及裝置。做爲光電裝置之具備例,可列舉發 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) ' -6- 538650 A7 B7 五、發明説明(4 ) 光顯示裝置、液晶顯示裝置、或電泳顯示裝置等之顯示裝 置。 (請先閱讀背面之注意事項再填寫本頁) 然而,全部本說明書,開啓信號意味選擇開關電晶體 之開啓狀態的信號。又透過本說明,「將第1之開啓信號藉 由前述掃描線供予前述開關電晶體’對應於供予前述第1之 開啓信號期間,將選擇前述驅動電晶體之導通或非導通的 設定信號,藉由前述資料線及前述開關電晶體’供予前述 驅動電晶體的步驟」’定義爲「設定步驟」,「藉由前述 資料線及前述開關電晶體’供予前述驅動電晶體的設定步 驟,和將第2之開啓信號藉由前述掃描線供予前述開關電晶 體,對應於供予前述第2之開啓信號期間’將前述驅動電晶 體成爲非導通的重置信號,藉由前述資料線及前述開關電 晶體,供予前述驅動電晶體的步驟」,定義爲「重置步 驟」。第1之開啓信號和第2之開啓信號非一定指連續之2個 開啓信號,包含時間上爲離散設定之情形。 經濟部智慧財產局員工消f合作社印^ 本發明之第2之光電裝置之驅動方法’係水平掃描期間 係包含爲進行前述設定步驟的第1之副水平掃描期間’和爲 進行前述重置步驟的第2之副水平掃描期間爲特徵。在此’ 第1之副水平掃瞄期間和第2之副水平掃瞄期間需要相互爲 不同。爲此,前述設定步驟和前述重置步驟則不會重覆。 然而,前述第1之副水平掃瞄期間和前述第2之副水平掃瞄 期間並非一定含於同一之水平掃瞄期間,含於不同之水平 掃猫期間亦可。 本發明之第3之光電裝置之驅動方法係於第1之水平掃 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) 538650 Α7 Β7 五、發明説明(5 ) 描期間進行前述設定步驟,於第2之水平掃描期間進行前述 重置步驟爲特徵者。在此,第1之水平掃瞄期間和第2之水 平掃瞄期間需互爲不同。爲此,前述設定步驟及前述重置 步驟係無需使用一個之水平掃瞄期間之所有時間加以進 行,於水平掃瞄期間內加以進行即可。又,於本說明書 中,前述第1之水平掃瞄期間和前述第2之水平掃瞄期間並 非一定含於二個連續之水平掃瞄期間,亦包含設定成離散 之情形。 本發明之第4之光電裝置之驅動方法係將前述設定步驟= 和前述重置步驟所規定之設定-重置動作,經由複數次之重 覆以獲得灰階爲特徵者。爲此,於前述設定步驟選擇光電 元件之狀態,至前述重置步驟保持該狀態之故,經由複數 次重覆此設定-重置動作,可得灰階。然而,本說明書中, 設定-重置動作係定義於先前定義之設定步驟和重置步驟被 加加以規定之動作。 本發明之第5之光電裝置之驅動方法係複數次重覆之前 述設定-重置動作之前述設定步驟和前述重置步驟間之時間 間隔各爲不同爲特徵者。 本發明之第6之光電裝置之驅動方法係複數次重覆之前 述設定-重置動作之前述設定步驟和前述重置步驟間之時間 間隔皆爲不同,此等之時間間隔之比以前述時間間隔中之 最小之時間間隔爲基準,大約呈l:2:...:2n(n係1以上之整數) 加以設定爲特徵者。例如進行前述時間間隔之比爲1:2之2次 之設定-重置動作之時,可進行0、1、2、3之4灰階之顯示。 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ 297公釐) (請先閱讀背面之注意事項再填寫本頁) ,裝 訂 經濟部智慧財產局α貝工消費合作钍印災 -8 - 538650 A7 B7 — ____— 五、發明説明(6 ) 請 先 閱 讀 背 面 之 注 意 事 項遽 ί裝 頁 另一方面,前述時間間隔之比進行1:1之2次之設定-重置動 作時,則成爲0、1、2之3灰階。即,此光電裝置之驅動方 法中,經由重覆設定-重置動作之最小限,可得最大限之灰 階數。然而,前述時間間隔之比無需一定爲正確之 1:2:...: 2Π( η係1以上之整數),可忍受之必需灰階精度之程度 正確者即可。 本發明之第7之光電裝置之驅動方法係前述設定信號係 代替選擇前述驅動電晶體之導通或非導通,爲決定前述驅 動電晶體之導通狀態之信號爲特徵者。此係意味除了驅動 電晶體之導通及非導通的2個狀態之外,可選擇中間之導通 狀態,可經由做爲設定信號具有連續性之値或設定成爲離 散性之3個以上之値的電壓加以供予而實現。此驅動方法爲 實現許多之灰階數時爲有效的。 本發明之第8之光電裝置之驅動方法係前述光電元件爲 有機電激發光元件爲特徵者。有機電激發光顯示元件一般 而言具有消耗電力爲小之優點。 經濟部智慧財產局員工消費合作Ti印製 本發明之第1之光電裝置係經由上述光電裝置之驅動方 法所驅動爲特徵者。 本發明之第2之光電裝置係屬於對應於掃描線和資料線 之交點,具備光電元件,和驅動此光電元件之驅動電晶 體,和控制此驅動電晶體之開關電晶體的光電裝置中’包 含產生令前述開關電晶體成爲開啓狀態或關閉狀態之信 號,對應於此,產生設定或重置前述驅動電晶體之信號的 驅動電路爲特徵者。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -9 - 538650 A7 ___B7_ 五、發明説明(7 ) f請先閱讀背面之注意事項再填寫本頁) 本發明之第3之光電裝置係屬於對應於掃描線和資料線 之交點,具備光電元件,和驅動此光電元件之驅動電晶 體,和控制此驅動電晶體之開關電晶體的光電裝置中,其 特徵係包含將使前述開關電晶體成爲開啓狀態或關閉狀態 之信號供予前述掃描線之掃描線驅動器,和對應前述掃描 線驅動器之動作,將設定或重置前述驅動電晶體之信號, 供予前述資料線之資料線驅動器者。 本發明之第4之光電裝置係屬於對應於掃描線和資料線 之交點,具備光電元件,和驅動此光電元件之驅動電晶 體,和控制此驅動電晶體之開關電晶體的光電裝置中,其 特徵係爲進行設定前述光電元件之設定步驟及重置前述光 電元件之重置步驟之開啓信號,藉由掃描線,供予開關電 晶體者。然而,在此,設定步驟及重置步驟之意義,在實 質上與申請專利範圍第1項之設定步驟及重置^驟之意義相 同。因此,本發明之第1〜第4之光電裝置無需爲進行時間灰 階法之重置線。然而,需更多之灰階數時,於此光學裝置 之畫素內設置副畫素等時,可與面積灰階法倂用。 經濟部智慧財產局員工消費合作钍印奴 本發明之第5之光電裝置係屬於上述光電裝置中,其 特徵係前述光電元件爲有機電激發光元件爲特徵者。 本發明之第1之電子機器係安裝前述光電裝置之電子機 器爲特徵者。 【發明之實施形態】 以下,說明本發明之較佳實施例。 i紙浪尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -10- 538650 A7 _B7 五、發明説明(8 ) 有關本發明之實施例之基本電路係具備攝氏600度以下 之低溫步驟所形成之多結晶矽薄膜電晶體(低溫poly-Si TFT)。低溫poly-Si TFT係可大面積地形成便宜之玻璃基 板,於面板上可內藏驅動電晶體之故,適於光電裝置之製 造。又,於小尺寸時電流供給能力亦高之故,適於光電裝 置之製造。然而,除了低溫poly-Si TFT化外,對於使用非 晶質矽薄膜電晶體(a-Si TFT)、矽基礎之電晶體或有機半導 體之所謂有機薄膜電晶體所驅動之光電裝置,亦可適用本 發明。 經濟部智慧財產局3S工消費合作社印^ 將有關本發明之實施例之光電裝置之晝素等價電路示 於圖1。在此做爲光電元件,使用發光元件。爲具有形成掃 瞄線(S1)、資料線(D1)及電源線(V),對應於掃瞄線(S1)和資 料線(D 1)之交點,具備發光元件(L 11 ),和驅動發光元件 (!^11)之驅動電晶體(0丁11),和控制此驅動電晶體(〇了11)之 開關電晶體(ST11),和電容器(C 11)的光電裝置,發光元件 (L 1 1)之一端係連接於陰極(A)。在此,驅動電晶體(D T 1 1)爲 P型之故,經由低電位之資料信號,選擇驅動電晶體(DTI 1) 之導通,發光元件(L 11)係成爲發光狀態。一方面,經由高 電位之資料信號,選擇驅動電晶體(DTI 1)之非導通,發光 元件係成爲非發光狀態。然而,示於此圖之晝素等價電路 中,開關電晶體(ST11)係η型、驅動電晶體(DT11)係p型,但 非限定於此。 圖2係顯示有關本發明之實施例之光電裝置之配線及晝 素配置圖。經由複數之掃瞄線(SI、S2、...)及複數之資料線 本紙張尺度適用中國國家標隼(CNS ) Μ規格( 210X 297公釐) 一 ' ----- -11 - 538650 A7 B7 五、發明説明(9) (請先閱讀背面之注意事項再填寫本頁) (D 1、D2、…),畫素形成成爲矩陣狀,對應於各掃瞄線和資 料線之交點,形成複數之晝素。例如,對應於s丨和D 1之交 點設置畫素11。晝素係,包含如圖1所示之開關電晶體 (ST1 1)、電容器(Cl 1)、驅動電晶體(DTI 1)、發光元件(LI 1) 者爲基本的,於畫素內包含複數之副畫素者亦可。然而, 於此圖中,省略電源線。 經濟部智慧財產局員工消費合作社印製 於圖3,顯示有關本發明之實施例的光電裝置之驅動方 法。然而,在此,水平掃瞄期間(H)由2個之副水平掃瞄期間 (S Η 1及S Η 2)所成,又,掃瞄信號及資料信號係高電位之信 號或低電位之信號之任一者。於掃瞄線(S D供給第丨之掃瞄 信號SS(S1),於第2之掃瞄線(S2)供給第2之掃瞄信號 SS(S2),於第3之掃瞄線(S2),供給掃瞄信號SS(S3)。於第1 之資料線D 1,供給第1之資料信號DS (D 1 ),於第2之資料線 D22,供給第2之資料信號DS(D2),於第3之資料線D3,供給 第3之資料信號DS(D3)。DS(D1)、DS(D2)及DS(D3)中,以斜 線所示之部分係顯示設定信號,此外之部分係顯示重置信 號。在此,做爲設定信號,雖供給將發光元件成爲發光狀 態之低電位之資料信號,令發光元件成爲非發光狀態1時, 供給高電位之設定信號亦可。 於水平掃瞄期間Η 1之副水平掃瞄期間SH 1,經由「藉由 掃瞄線(S1),於開關電晶體(ST11),供予第1之開啓信號, 對應於供予前述第1之開啓信號期間,將選擇驅動電晶體 (DT 11)之導通或非導通的設定信號,藉由資料線D1及開關 電晶體(ST11),供予驅動電晶體(DT11)」的設定步驟,選擇 -12- 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ29?公釐) 538650 A7 B7 五、發明説明(1C) (請先閱讀背面之注意事項再填寫本頁) 發光元件之發光或非發光。於水平掃瞄期間H2之副水平掃 瞄期間SH2,經由「藉由掃瞄線(S1),於開關電晶體 (ST11),供予第2之開啓信號,對應於供予前述第2之開啓信 號期間,將選擇驅動電晶體(DT 11)之非導通的設定信號’ 藉由資料線D1及開關電晶體(ST11),於驅動電晶體(DT11), 供予重置信號」的設定步驟,選擇發光元件之非發光。對 應於前述設定步驟和前述重置步驟,設定第1行第1列之畫 素11之發光期間(E1)。然而,對應於信號,電晶體或發光元 件回應時多少需要時間之故,如此圖所示,發光期間之開 始時間和終了時間,自各個設定步驟之開始時間及重置步 驟之終了時間多少有所偏移。又,此圖中,供予第1及第2 之開啓信號之期間和供予設定及重置信號的期間雖各爲完 全重疊,由於使用狀況或配備,有無需完全重疊必要的情 形。 經濟部智慧財產局員工消費合作社印製 接下來的掃瞄線(S2)之設定步驟及重置步驟係不重疊掃 瞄線(S1)之設定步驟及重置步驟地加以進行,但如圖3所示 於最近時間進行者爲佳。以下,同樣地,對於第3之掃瞄線 (S3)以後之各掃瞄線,進行設定步驟及重置步驟,一個之垂 直掃瞄期間終了後,向下個垂直掃瞄期間轉移,對於各掃 瞄線,同樣地進行設定步驟及重置步驟。在此,發光期間 El、E2及E3之長度比係約1:2:4,由此可得0、1、2、3、4、 5、6、7之8灰階。 圖3係雖顯示將水平掃瞄期間分割成爲2個之副水平掃 瞄期間時之實施例,如圖4所示,可將設定步驟或重置步驟 •13- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 538650 Α7 Β7 五、發明説明( (請先閱讀背面之注意事項再填寫本頁) 以水平掃瞄期間單位加以設定。圖4中,完全一致於水平掃 瞄期間地,設定設定步驟之期間及重置步驟之期間。但是 不一定要使用一個水平掃瞄期間之全時間,進行設定步驟 或重置步驟亦可。 將複數次之設定-重置動作中一部分或全部之設定-重置 動作,進行於同一之水平掃瞄期間亦可。將如此實施例示 於圖5。此實施例中,將分割成爲水平掃瞄期間(Η)之4個的 副水平掃瞄期間(SH)做爲單位,進行設定步驟及重置步 驟,將最初之一次之設定-重置動作於同一之水平掃瞄期間 加以進行。第2以後之設定-重置動作中,進行設定步驟之 副水平掃瞄期間,和進行重置步驟之副水平掃瞄期間,係 屬於不同之水平掃瞄期間。於各垂直掃瞄期間中,第1之掃 瞄線(S1)之水平掃瞄期間終了後,開始第2之第2之掃瞄線 (S 2)之設定-重置動作。以下,同樣地,對於第3之掃瞄線 (S 3)以後之各掃瞄線,進行設定-重置動作。 經濟部智慧財產局a(工消f合作杜印焚 然而,於圖3〜5所示之任一之光電裝置之驅動方法中, 雖自設定步驟和重置步驟間之時間間隔之短設定-重置動 作,順序進行,無需將時間間隔短之設定-重置動作,於最 初加以進行,將時間間隔之不同之設定-重置動作,對於以 什樣的順序進行,可對應於使用狀況或配備等加以選擇。 又,如圖3〜5所示之光電裝置之驅動方法,爲單純化資料線 驅動等之周邊電路系,於一定之周期,供予重置信號者爲 佳,但並非一定於一定周期,供予重置信號,對應於所期 望之發光長度,將供予開關電晶體之開啓信號和重置信號 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -14- 538650 A7 ______B7 五、發明説明(12) 的時間適切加以設定即可。 (請先閲讀背面之注意事項再填寫本頁) 圖6係於本發明之實施例顯示發光元件之電流特性圖。 橫軸係供予驅動電晶體之閘極電極的控制電位(Vsig),縱軸 係有機電激發光元件之電流値(IIu)。有機電激發光元件之 電流値和發光亮度係幾近成爲比例關係之故,縱軸係對應 於發光亮度者加以考量亦可。於本實施例中,將有機電激 發光元件,控制於完全之開啓狀態或完全之關閉狀態之二 狀態之任一者爲佳。因爲,於完全之開啓狀態或完全之關 閉狀態中,電流値(ILO係幾近成爲一定之故,變動電晶體1 特性時’發光元件之電流値係幾近不變化,發光亮度幾近 呈一定。由此,可實現畫質均勻性。 圖7係顯示有關於本發明之實施例之光電裝置之薄膜電 晶體之製造工程圖。首先,於玻璃基板1上,經由使用 之PECVD,或經由使用SuH6之LPCVD,形成非晶質矽。經 由激元雷射等之雷射照射,或固相成長,將非晶質矽多結 晶化,形成多結晶矽層2(圖7(a))。圖案化多結晶矽層2後, 經濟部智慈財產局3工消費合作社印製 形成閘極絕緣膜3。更且,形成閘極電極4(圖7(b))。將磷或 硼等之不純物,使用閘極電極4,自我整合地植入多結晶矽 層2,形成MOS電晶體5a及5b。然而,在此,5a及5b係各爲p 型電晶體及η型電晶體。形成第1層間絕緣膜6後,開孔連接 孔,更且形成源極電極及汲極電極7(圖7(c))。接著,形成 第2層間絕緣膜8後,開孔連接孔,更且形成自ΙΤΟ所成畫素 電極9(圖7(d))。 圖8係表示有關於本發明之實施例之光電裝置之畫素之 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -15- 538650 A7 B7 五、發明説明(13) 製造工程圖。首先,形成密著層1 〇,形成對應於發光範圍 之開口部。形成層間層11之後,形成開口部(圖8(a))。接 著,經由進行氧電漿或Cb電漿等之電漿處理,控制基板表 面之溼潤性。之後,將正孔植入層1 2及發光層1 3經由旋轉 塗佈、刮墨塗佈、噴墨步驟等之液相步驟,或經由濺射、 蒸著等之真空步驟加以形成,更且形成包含鋁等之金屬的(1 陰極14。最後形成封閉層15,完成有機電激發光元件(圖 8(b))。密著層10之功能係提升基板和層間層11之緊密性, 又可得正確之發光面積者。層間層11之功能係自閘極電極4 或源極電極及汲極電極7,將陰極14遠離,減低寄生容量, 以及於液相程序形成正孔植入層12及發光層13時,控制表 面之溼潤性,進行正確之圖案化。 接著,對於適用於以上說明之光電裝置之電子機器之 幾種事例加以說明。圖9係顯示適用前述光電裝置之可攜型 個人電腦之構成的斜視圖。於此圖中,個人電腦11 00係經 由具備鍵盤1102之本體部1104,和顯示單元H06所構成,此 顯示單元1106具備前述之光電裝置100。 又,圖10係顯示將前述光電裝置100適用於該顯示部之 攜帶型電話機之構成的斜視圖。於此圖中,攜帶型電話機 1 200係除了複數之操作鈕1 202之外,伴隨受話口 1204、送話 口 1 206,具備前述光電裝置100。 又,圖11係顯示將前述之光電裝置100,適用於該觀景 器之數位相機之構成斜視圖。然而,此圖中,對於與外部 機器之連接亦簡單顯在此,對於通常之相機係經由被攝體 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) .裝· 、11 經濟部智慧財4局員工消费合作社印製 -16- 538650 A7 _B7 _ 五、發明説明(14) 請 閱 li 背 Sj 之 注 意 事 項 再 填 寫 本 頁 之光像感光軟片,數位相機1 300係將被攝體之光像經由 CCD(電荷耦合元件)等之攝像元件,加以光電變換,生成攝 像信號。於數位相機1 300之殼體1 302之背面,設置前述光電 裝置100,根據CCD所成攝像信號,進行顯示構成,光電裝 置100係做爲顯示被攝體之觀景器加以工作。又,殼體1302 之觀察側(於圖之背面側)中,設置包含光學透鏡或CCD等之 受光單元1 304。 攝影者確認顯示於光電裝置1〇〇之被攝體像,按下快門 鈕1306時,於該時點之CCD之攝像信號則轉送·收容於電路-基板1 308之記憶體。又,於此數位相機1 300中,於殼體1302 側,設置視訊信號輸出端子1 3 1 2,和資料通訊用之輸出入 端子1 3 1 4。然後,如圖示,於前述者之視訊信號輸出端子 Π 12中,依需要連接電視監視器1430,或後者之資料通訊用 之輸出入端子13 14時,依需要連接個人電腦1430。更且,經 由所定之操作,收容於電路基板1 308之記憶體的攝像信號 則輸出至電視監視器1430或電視監視器1440地加以構成。 經濟部智慧財產¾員工消費合作社印製 然而,做爲適用本發明之光電裝置100之電子機器,圖 9之個人電腦、或圖10之攜帶型電話機、圖11之數位相機之 外,可列舉液晶電視、觀景型、監視直視型之攝錄影機、 汽車導航裝置、呼叫器、電子筆記本、計算機、文字處理 器、工作站、電視電話、POS終端、具備觸控面板之機器 等。然後,做爲此等之反種電子機器之顯示部,當然可適 用前述之光電裝置100。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -17 - 538650 A7 B7 五、發明説明(仏) \0 【圖面之簡單說明】 【圖i】 (請先閱讀背面之注意事項再填寫本頁) 顯示有關本發明之實施例之光電裝置之晝素等之等價 電路圖。 【圖2】 顯示有關本發明之實施例之光電裝置之晝素配置圖。 【圖3】 顯示有關本發明之實施例之光電裝置之驅動方法圖。 【圖4】 顯示有關本發明之實施例之光電裝置之驅動方法圖。 【圖5】 顯示有關本發明之實施例之光電裝置之驅動方法圖。 【圖6】 顯示有關本發明之發光元件之電流特性圖。 【圖7】 顯示有關本發明之實施例之光電裝置之製造工程之一 部分圖。 經濟部智慈財1笱員工消費合作社印製 【圖8】 顯不有關本發明之實施例之光電裝置之製造工程之一 部分圖。 【圖9】 顯不將本發明之一實施例所成光電裝置,適用於攜帶 型個人電腦之時之一例圖。 【圖10】 本紙張尺度適用中國國家標隼(CNS ) A4規格(210X 297公釐) -18 538650 A7 B7 五、發明説明(16) 顯示將本發明之一實施例所成光電裝置,適用於攜帶 型電話機之顯示部時之一例圖。 (請先閲讀背面之注意事項再填寫本頁) 【圖11】 顯示將本發明之一實施例所成光電裝置,適用於觀景 部之數位相機之斜視圖之圖。 【符號說明】 V 電源線 A 陰極 L 1 1 發光元件 DT11 驅動電晶體 ST11 開關電晶體 C1 1 電容器 S 1 第1之掃瞄線 S 2 第2之掃瞄線 D 1 第1之資料線 D2 第2之資料線 經濟部智慧財產苟員工消費合作社印¾ Η 水平掃瞄期間 Η1 最初之水平掃瞄期間 Η2 第2之水平掃瞄期間 Η3 第3之水平掃瞄期間 Η4 第4之水平掃瞄期間 SH 副水平掃瞄期間 SH1 第1之副水平掃瞄期間 本紙張尺度適用中國國家標準·( CNS ) A4規格(210X 297公釐) -19- 538650 A7 B7 五、發明説明(17) 經濟部智慧財產局員工消f合作社印¾ SH2 第2之副水平掃瞄期間/ SS(S1) 第1之掃瞄線之掃瞄信號 SS(S2) 第2之掃瞄線之掃瞄信號 SS(S3) 第3之掃瞄線之掃瞄信號 DS(D1) 第1之資料線之資料信號 DS(D2) 第2之資料線之資料信號 DS(D3) 第3之資料線之資料信號 El 晝素11之第1之發光期間 E2 晝素11之第2之發光期間 E3 晝素11之第3之發光期間 V s i g 控制電位 Iiep 電流値 1 玻璃基板 2 多結晶砂層 3 閘極絕緣膜 4 閘極電極 5 a P型電晶體 5b η型電晶體 6 第1層間絕緣膜 7 源極電極及汲極電極 8 第2層間絕緣膜8 9 畫素電極 10 密著層 11 層間層 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -20- 538650 A7 B7 五、發明説明(18) 12 正孔植入層 13 發光層 14 陰極 15 封閉層。 (請先閱讀背面之注意事項再填寫本頁) -裝 訂 經濟部智慈財/i局ai工消費合作社印^ 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) -21 -

Claims (1)

  1. 538650 A8 B8 C8 D8 Λ 六、申請專利範国 第90124199號專利申請案 中文申請專利範圍修正本 (請先閱讀背面之注意事項再填寫本頁) 民國92年4月14 日修正 1.一種洸電裝置之驅動方法,屬於對應於掃描線和資 料線之交點,具備光電元件,和驅動此光電元件之驅動電· 晶體,和控淛此驅動電晶體之開關電晶體的光電裝置之驅 動方法中,其特徵係包含 將第1之:開啓信號藉由前述掃描線供予前述開關電晶 體,對應於供予前述_ 1之開啓信號期間,將選擇前述驅動 電晶體之導通或非導通的設定信號,藉由前述資料線及前 述開關電晶體,供予前述驅動電晶體的設定步驟, 禾口將第2之開啓信號藉由前述掃描線供予前述開‘關電晶體, 對應於供予前述第2之開啓信號期間,將前述驅動電晶體成 爲非導通的重置信號,藉由前述資料線及前述開關電晶 體,供予前述驅動電晶體的設定步驟者。 經濟部智慧財產局員工消費合作社印製 2. 如申請專利範圍第1項之光電裝置之驅動方法,其 中,水平掃拮期間係包含爲進行前述設定步驟的第1之副水 平掃描期間,和爲進行前述重置步驟的第2之副水平掃描期 間。 3. 如申請專利範圍第1項之光電裝置之驅動方法,其 中,於第1之:水平掃描期間進行前述設定步驟,於第2之水 平掃描期間進行前述重置步驟者。 4. 如申胃青專利範圍第1項至第3項之任一項之·光電裝置之 驅動方法,淇中,將前述設定步驟和前述重置安驟所規定 本紙張尺度適用中國國家標华(CNS ) Α4規格(210Χ297公釐) 338650 A8 B8 C8 D8 申請專利範圍 t 55定-重置動作,經由複數次之重覆以獲得灰階者。 5. 如申請專利範圍第4項之光電裝置之驅動方法,其 中’重覆多數次前述設定-重置動作之前述設定步驟與前述 5 ®步驟之間的時間間隔,各爲不同者。 6. 如申請專利範圍第4項之光電裝置之驅動方法,其 Ψ ’複數次重覆之前述設定-重置動作之前述設定步驟和前 ^ S置步驟間之時間間隔皆爲不同,此等之時間間隔之比 6 Μ述時間間隔中之最小之時間間隔爲基準,大約呈 1:2:··_:2η(η係1以上之整數)加以設定者。 λ如申請專利範圍第1項至第3項之任一項之光電裝置之 _ S力方法,其中,前述設定信號係代替選擇前述驅動電晶 _ $導通或非導通,爲決定前述驅動電晶體之導通狀態之 信號考。 8·如申請專利範圍第1項至第3項之任一項之光電裝置之 驅動方法,其中,前述光電元件爲有機電激發光元件者。 9·一種光電裝置,屬於對應於掃描線和資料線之交點’ 具備光電元件,和驅動此光電元件之驅動電晶體’和控制 此驅動電晶體之開關電晶體的光電裝置中,其特徵係包含 產生令前述開關電晶體成爲開啓狀態或關閉狀態之信 號,對應於此,產生設定或重置前述驅動電晶體之信號的 驅動電路者 1 〇. —種光電裝置,屬於對應於掃描線和資料線之父 點,具備光電元件,和驅動此光電元件之驅動健晶體’和 控制此驅動電晶體之開關電晶體的光電裝置中’其特徵係 ----------- (請先閱讀背面之注意事項再填寫本頁) 訂 •1. 經 濟 部 智 慧 財 雇 局 員 工 消 費 合 作 社 印 製
    538650 A8 B8 C8 D8 六、申請專利範圍 包含 將使前述開關電晶體成爲開啓狀態或關閉狀態之信號{共f 前述掃描線之掃描線驅動器, 和對應前述掃描線驅動器之動作,將設定或重置前述驅動 電晶體之信號,供予前述資料線之資料線驅動器者。 11. 一種光電裝置,屬於對應於掃描線和資料線之交 黑占,具備光電元件,和驅動此光電元件之驅動電晶體’和 控制此驅動電晶體之開關電晶體的光電裝置中’其特徵係 爲進行設定前述光電元件之設定步驟及重置前述光® 元件之重置步驟之開啓信號,藉由掃描線’供予開_ ®晶 體者。 12. —種光電裝置,屬於如申請專利範圍第9項至第11項 之任一項之光電裝置中,其特徵係前述光電元件爲有機電 激發光元件者。 13. —種電子機器,其特徵係安裝如申請專利範圍弟9項 至第11項之任一項之前述光電裝置者。 ----------- (請先閱讀背面之注意事項再填寫本頁) 訂 f 經濟部智慧財產局員工消費合作社印製 本紙張义度適用中國國家標準(CNS ) A4規格(210 X 297公釐) -3- 538650 第90124199號專利申請案 中文圖式修正頁 修正 民_彪单 务正 第7圖 光 (a) 2 <· (b) A Z
    (c)
    5b N-channel 5a P-channel
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