TWM253877U - Display device - Google Patents
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- 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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- display driver
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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
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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]
- G09G3/3216—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
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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
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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]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3283—Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
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- 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
- 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
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
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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
Landscapes
- 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)
- 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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EP (1) | EP1532611B1 (zh) |
JP (1) | JP5183858B2 (zh) |
KR (1) | KR101035106B1 (zh) |
CN (1) | CN1675673B (zh) |
AU (1) | AU2003247111A1 (zh) |
TW (1) | TWM253877U (zh) |
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- 2003-07-18 KR KR1020057002772A patent/KR101035106B1/ko active IP Right Grant
- 2003-07-18 AU AU2003247111A patent/AU2003247111A1/en not_active Abandoned
- 2003-07-18 JP JP2004530423A patent/JP5183858B2/ja not_active Expired - Fee Related
- 2003-07-18 WO PCT/IB2003/003281 patent/WO2004019311A2/en active Application Filing
- 2003-07-18 CN CN038193493A patent/CN1675673B/zh not_active Expired - Lifetime
- 2003-07-18 US US10/525,134 patent/US7589701B2/en not_active Expired - Lifetime
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TWI556216B (zh) * | 2011-07-08 | 2016-11-01 | 鴻海精密工業股份有限公司 | 液晶顯示器及其驅動電路 |
US9318069B2 (en) | 2013-01-14 | 2016-04-19 | Apple Inc. | Low power display device with variable refresh rates |
US9501993B2 (en) | 2013-01-14 | 2016-11-22 | Apple Inc. | Low power display device with variable refresh rates |
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Also Published As
Publication number | Publication date |
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JP2005536772A (ja) | 2005-12-02 |
US20060071882A1 (en) | 2006-04-06 |
KR101035106B1 (ko) | 2011-05-19 |
EP1532611B1 (en) | 2015-09-09 |
WO2004019311A2 (en) | 2004-03-04 |
EP1532611A2 (en) | 2005-05-25 |
WO2004019311A3 (en) | 2004-06-17 |
AU2003247111A8 (en) | 2004-03-11 |
JP5183858B2 (ja) | 2013-04-17 |
US7589701B2 (en) | 2009-09-15 |
KR20050056202A (ko) | 2005-06-14 |
CN1675673B (zh) | 2010-05-05 |
CN1675673A (zh) | 2005-09-28 |
AU2003247111A1 (en) | 2004-03-11 |
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