TWM253877U - Display device - Google Patents

Display device Download PDF

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Publication number
TWM253877U
TWM253877U TW092214912U TW92214912U TWM253877U TW M253877 U TWM253877 U TW M253877U TW 092214912 U TW092214912 U TW 092214912U TW 92214912 U TW92214912 U TW 92214912U TW M253877 U TWM253877 U TW M253877U
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TW
Taiwan
Prior art keywords
display
display driver
voltage
driver device
patent application
Prior art date
Application number
TW092214912U
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English (en)
Inventor
Adrianus Sempel
Original Assignee
Koninkl Philips Electronics Nv
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Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TWM253877U publication Critical patent/TWM253877U/zh

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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
    • 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]
    • G09G3/3216—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 a passive matrix
    • 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
    • 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]
    • 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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/04—Display protection
    • 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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  • 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)

Description

M253877 捌、新型說明： 【新型所屬之技術領域】 本創作係關於一種顯示裝置，含有至少一圖像元件與一 顯示驅動器裝置，顯示驅動器裝置含有與圖像元件串聯之 一驅動電晶體。 此類顯示裝置逐漸使用以電發光為基礎之半導體有機材 料，亦稱為發光二極體（polyLEDs或OLEDs)。顯示裝置可 經由片段圖素（或固定圖案）發光，但亦可藉由矩陣圖案顯 示。二極體電流之調整通常決定欲由圖素所發射之光線強 度0 此類顯示裝置之適當應用領域為，例如，行動電話，萬 用記事本等。 【先前技術】 於匙始段落描述 ---丄寸丄| 述。於該文件’通過LED之電流藉由電流控制調整。對 發光圖素矩陣中之每行圖素，含有—雙载子電晶體與一 阻之電流驅動器乃供給作為驅動電路之—部份。除雙 電晶體外，可使用M〇S或丁F 丁電晶體。 又 固之灰階，對於某—灰階值1流實質上； '疋電流區域使用電晶體之原因。於此情形 使用1汲極喝極電壓（或於雙料電晶體情形 二 極電壓）。此使得電晶體之偏 y 于电日日版之偏壓較不易受汲極 響’此變動乃由於，例如圖素二極 α動、 供給電壓之變動所造成。 、°特性或驅動著
O:\86\86985.DOC M253877 然而，於顯示裝詈盥 器電路大量生產時，產生 問4，因驅動器電路之輪 供給之扞务曰。、〇 多於與驅動電流一同 動雷蹊社认+ 一 動卯可此增加，例如，當於驅 ::路“之貧訊(例如於顯示器邊緣之行)本質 =示之合理圖像’或當顯示器之行數目，電 I;::之行驅動器輸出數目。因輸出驅動器作為：電 給電壓所限制。若行連 《加乃由供 輸出節點之電@ ，亦發生㈣增加。監視於 屬僧 電屋，以於供給節點與輸出節點間維持某—電 壓值，以使電流供給維持於军 + 于呆電 節點之一之電#/ 域。現在，若輸出 點增加等Γ增加’供給節點電厂堅亦增加，使得輸出節 此導致顯示裝署偽f _ 衣置與顯不驅動^電路之過度功率消耗。 除此之外，輸出電流(或輸出節 而變化，且不同行 〜由於-度改變 【新型内容】 益(及不同仃)之特性亦可能不同。 置=其本中創作：目，於供給於起始段落所述之顯示裝 尤盆 U即點電壓之變動與功率消耗減至最小， 二：;1::於開路驅動器輸出節點™ 於根據本創作元件之顯示裝置中， 不·|£動為裝置包 颂 置(例如供給驅動器裝置電壓輸出之震 ,ρ Μ ^ '"不輪出電壓值達到臨界電壓之信號）。 根據本創作之_ -壯 饋機制，以控制=一較佳具體實施例，包含—回 …、、不驅動器裝置之參考電壓。參考電壓通
O:\86\86985.DOC 常為供給節點電壓，但 、 電屢，或任何其他_ :或間接决定該供給節點 他週田包壓節點之電壓。細山 供給節點與輸出筘 、、工由回饋機制， 狗出即點間之電壓值實質 仔電流供給仍舊於羊— 得口疋（位於使 不使此電壓值.為過t=r電㈣）之值），而 一控制電路，其對於-圖像元件^回饋機制較佳地包含
;r Q 1豕几仵之顯不驅動哭驻娶今；feA 電壓，與低於一臨K雪陳, 動态虞置之輪出 ^ ^界電屋之參考電壓間之 號。為避免由於開路驅 一信 耗，顯示驅動器裝置人有輸出即點造成之額外功率消 輸出之H德 ，於供給顯示驅動器裝置開路 乜諕後，用於偵測之裝置。 於-較佳具體實施例，用於偵測 出之裝置，句各一带、—- ，軔态裒置開路輸 壓之穿 “L路控’其含有部分用於監視輸出電 塋之凌置。用於偵測之該 壓盥顯干鲈龢W 置了匕3開關，位於參考電 一員不軀動盗裝置輸出間之電流路徑中，或可包 險絲，位於參考雷懕一 呆 包壓與顯不驅動器裝置輸出間之電流路徑。 L貫施方式] 圖1乃圖表地顯示根據本創作之顯示裝置1之部分等效電 路圖式0此顯+另士 ”、、、/、衣置 έ 有一（P) LEDs或（〇)LEDs 4之矩陣， 呈m歹!] Π ? p ’’···’ m)與n行（丨，2,…，η)。此裝置進一步含有_ 列4擇電路6與—資料登錄器5。外部呈現資訊7,例如，一 &像U虎’於處理單元8處理，其根據欲顯示之資訊，經由 線路9充％謂登錄器5之個別部分5.1，…，5-η。 列通擇错由列選擇電路6經由線路3產生，於此範例藉由 供給其所需之選擇電壓（被動定址）。
O:\86\86985.DOC -7- M253877 寫入資料發生於’在選擇時，可視為一理想電流源之電 流源10，藉由資料登錄哭$ 、 錄抑5開啟，例如經由開關（未顯示）。 電流值由資料登錄器之内容決定，並經由，電供給線路 11，由資料線路2供、给至咖s 4。電1線路u可由外部供 給，或可來自處理單元8内之電壓。 電流開關1〇可為—簡單類型，每個僅含有-電晶體與一 電阻。如序謂解釋，為使電晶體之㈣衫纽極電壓 變動之影響，此變動乃由於，例如圖素二極體之順向特性， ί驅動器^供給電虔變動所造成，電晶體通常用於固定電 λπι £域。南沒極-源極雷愿妙 一 Γ^ &然而，將增加功率消耗，尤其 當不同行其驅動特性不同時。後者亦可能導致不一 特性 根據本創作第一型態，顯示驅動器裝置（於此範例包含列 選擇電路6 ’資料登錄器5 ’處理單元8與電流驅動器10)亦 包含-監視電路，於此範例為—操作放大⑽，以監視t 輸出電壓，並經由-回饋機制，控制顯示驅動器裝置之2 >考電壓。雖.然以-個別元件顯示，操作放大器U通常形 成處理單元8之—部份。操作電壓值、藉由連接12監視。 為使驅動器内之功率消耗處於低程度，Vds值於x點偏壓， 其允許於此Vds值之！。（最大值）值（見圖2)。㈣操作放大 器，於電壓線路11之電壓V 祕杜# p supply維持於V。〆vds。因電壓v 可能顯示一些變動’處理單元8傾向將電壓線路u維持;： V。…+ Vds，使得操作點讀偏向較高電壓，如圖2箭頭 所不。此可用於偵測顯示器(或顯示驅動器裝置)之壽命終
O:\86\86985.DOC M253877 止，僅藉由比較Vap，max與處理器8之參考電壓。參考電壓可 於處理為8内產生或由外部供給。於偵測到超越某一臨 界值時，處理器8產生一壽命終止信號。 除僅產生-壽命終止信號外，當輸出驅動器數目（電流源 )超過行2之數目日守，此監視較佳地用於使顯示驅動器裝 置輕顯示裝置1。若電流源1G之-仍舊未連接至行（於圖1 * j此以行n表示），其電流為零，使得Vds值於點0傾 向偏[且Vop傾向vsupplj。經由操作放大器13，電屡線 路11現在’經由—正回饋機制’傾向無限地增加（雖然此增 加為外部供給之電壓所限制）。 w x 、 1作，如上述之一相似偵測機制結合於處 ，杰8中’其將V(>p之進—步增加中止於某—臨界值（例如， 當 V〇P，max 靠近 Vsupply 一 Vds，_值）。 圖3顯示-較詳細之具體實施例，具兩電流源ι〇，一連接 至LED 4 1 一個具有一（開路）輸出^。每個電流源包含一 電晶體21與兩串聯之電阻22,23，其共同點連接至摘測電 路24,24,，提供偵測電路24,24, -輸入電壓Vin。於摘 測電路24, 24,，監視通過電流源之電流，並如上述與某 -臨界值比較。連接12經由電晶體27與26,26，，控制電 壓線路11仍舊於v + V ^ 售於Vop’max + Vds。於開路輸出情形，將可知通 過電流源之電流為零，且結果 η V supply 双 V in —
Vs。㈣e。於例如對應於開路輪出28之债測電路24，㈣到 此，開關π A開路且中斷控制機制，所以此開路輸出28 於所述之回饋機制不再作用。
O:\86\86985.DOC -9- M253877 開路輸出例如，藉由圖4之電路 包含一差動,…甘a 塔制#中傾測電路24 動放大益’其具一電流源3〇,兩電晶體”，且於 此範例具電阻值為k兩電阻32。若無電流流入電晶體21: ==2’23共同點之電㈣I線路u電壓，所以於兩電 曰曰體31，一半電流l3。流入，於輸出33產生電屢v〇p +
Vds — /2 l30.R。此電麼選擇為使得對應_ 26，開路P’。max 隨後經由其間極端點選擇電晶體21，同時使其汲極端點 2至-適當電麼，並維持其他所有電晶體21關閉，行輸 行輸出。 仏也罪近1 一供給，以測試所有 數：：若一些行未使用，且驅動器未欲與其他任何(其他） 一 α同使用’也許足以於電晶體21與輸出28間引入 -保險絲4_5)。接著可藉由選擇對應電晶體^ 適當電麼至其對應連接12與„線路η，消除多餘數目^ 輸出。 本創作之保護範嘴不限於所述具體實施例。本創作適用 於主動與被動裝置’矩陣與片段顯示裝置。因驅動哭裝置 可用於不同種類之顯示裝置(大小，功率消耗，電展)，所\ :之麥考電壓或電壓差為可程式化。本創作亦適用於場射 破置，與其他根據電流驅動之裝置。 本創作具有每個與每一新穎特徵，及特徵之每個與每一 、且。^專利乾圍中之參考數字未限制這些申請專 圍之保護範脅。動詞“含有，，與其詞性變化之使用，不排 除於申請專利範圍所述外之其他元件。於一元件前使用之
O:\86\86985.DOC M253877 冠詞’’一，，，不排除此類元件之複數形式。 【圖式簡單說明】 參照隨後所述之具體實施例，將瞭解與說明本創作之這 些與其他型態。 於圖式中： 圖1圖表地顯示根據本創作之顯示裝置， 圖2顯示用於圖丨具體實施例之電晶體之電晶體特性， 圖3顯示本創作之一具體實施例，及 圖4與5顯示根據本創作之驅動器電路之其他具體實施 例，及 灵也 這些圖式乃為圖表；相同元件通常以相同參考數字表示。 【圖式代表符號說明】 μ 1 顯示裝置 2 資料線路 3，9 線路 4 發光二極體 5 資料登錄器 6 列選擇電路 7 資訊 8 處理單元 10，30 電流源 11 電壓供給線路 12 連接 13 操作放大器 O:\86\86985.DOC -11 - M253877 2 卜 27，31，21， ，27’ ，31’電晶體 22，23，32，32， 電阻 24，24’ 偵測電路 26，26， 開關 28，33 輸出 40 保險絲 O:\86\86985.DOC - 12 -

Claims (1)

  1. M253877 玖、申請專利範園： 一種含有一些圖像元件與一顯示驅動器裝置之顯示聲 置，該顯示驅動器裝置包含與該圖像元件串聯之驅動電 晶體’該顯示驅動器裝置包含用以監視該顯示驅動器I 置之輸出電壓之裝置。 2·如申請專利範圍第1項之顯示裝置，其中包含一裝置， i ’用 以提供表示一輸出電壓之該值達到一臨界電壓之信號。 3·如申請專利範圍第2項之顯示裝置，其中於該驅動電晶體 與該圖像元件間，具保險絲裝置。 4. 如申請專利範圍第1項之顯示裝置，其中包含一回饋機 制，以控制該顯示驅動器裝置之一參考電壓。 5. 如巾请專利範圍第2項之顯示裝置，#中該回饋機制進— 二包：：控制電路，以提供表示一圖像元件之該顯示驅 動益裝置之一輸出電壓，與低於一臨界電壓之該 壓間之差異之信號。 電 6· 如甲請專利範圍第5項之顯示 <罝其中该顯不驅動器举 置匕δ，於提供表示該顯示 ^ 貝不驅動益裝置之一開路輪出$ #唬後用以偵測之裝置。 】卬4 7. 如申請專利範圍第5項之顯示裝置 置包含一差動放大器。 其中該顯示驅動器裝 8. 其中該圖像元件由電 圖像元件之該顯示驅 電壓間之該差異，實 t申請專利範圍第4項之顯示裝置， 流源驅動，且該回饋機制，使得— 動器裝置之-輪出電壓，與該參考 質上維持固定。 O:\86\86985-1.DOC M253877 9.如申請專利範圍第1項之顯示裝置，其中該圖像元件為一 發光元件，且該第一電流決定該發光元件之該發光。 10· —種顯示驅動器裝置，該顯示驅動器裝置包含與圖像元 件串聯之驅動電晶體，該顯示驅動器裝置包含用以偵測 該顯示驅動器裝置之輸出電壓之裝置。 11.如申請專利範圍第10項之顯示驅動器裝置，其中該顯示 驅動器裝置包含一裝置，用以提供表示一輸出電壓之該 值到達一臨界電壓之信號。 12·如申請專利範圍第丨丨項之顯示驅動器裝置，其中於該驅 動電晶體與該顯示驅動器裝置之一輸出連接間具有保險 絲裝置。 双 13·如申請專利範圍第1G項之顯示驅動器裝置，其中進_步 包3 Θ饋機㈣，以^空制該顯示驅動器裝置之一參考電 14. 15. 16. 士申μ專利靶圍第13項之顯示驅動器裝置，其中該回饋 機制進步包含一控制電路，以提供―圖像元件之該顯
    不驅動器裝置之_輸出電壓，與低於—臨界電壓之該炎 考電壓間差異之信號。 > 申月專利圍第10項之顯示驅動器裝置，其中該 驅動器裝置包含_装包#丄 是勁放大器，以在提供該顯示驅動器 裝置-開路輪出信號後進行偵測。 如申請專利範圍第15項之顯示驅動器裝置，進一步包含 1於忒參考電壓與該顯示驅動器裝置之該輸出之間 的電流路徑中。 O:\86\86985-1.DOC -2-
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US10600379B2 (en) 2013-01-14 2020-03-24 Apple Inc. Low power display device with variable refresh rates

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US7589701B2 (en) 2009-09-15
US20060071882A1 (en) 2006-04-06
WO2004019311A3 (en) 2004-06-17
KR20050056202A (ko) 2005-06-14
EP1532611B1 (en) 2015-09-09
CN1675673A (zh) 2005-09-28
CN1675673B (zh) 2010-05-05
EP1532611A2 (en) 2005-05-25
JP5183858B2 (ja) 2013-04-17
AU2003247111A8 (en) 2004-03-11
KR101035106B1 (ko) 2011-05-19
WO2004019311A2 (en) 2004-03-04
JP2005536772A (ja) 2005-12-02

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