TW200306523A - Reduction of phosphor lag artifacts on display panels - Google Patents

Reduction of phosphor lag artifacts on display panels Download PDF

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TW200306523A
TW200306523A TW092112075A TW92112075A TW200306523A TW 200306523 A TW200306523 A TW 200306523A TW 092112075 A TW092112075 A TW 092112075A TW 92112075 A TW92112075 A TW 92112075A TW 200306523 A TW200306523 A TW 200306523A
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light
emitting element
time response
predetermined energy
patent application
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TW092112075A
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TWI224770B (en
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Cedric Thebault
Sebastien Weitbruch
Herbert Hoelzemann
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Thomson Licensing Sa
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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
    • G09G3/28Control 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 luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/291Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • 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
    • G09G3/2003Display of colours
    • 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
    • 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
    • G09G3/28Control 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 luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/296Driving circuits for producing the waveforms applied to the driving electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0257Reduction of after-image effects
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0261Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the screen
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0266Reduction of sub-frame artefacts
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/16Determination of a pixel data signal depending on the signal applied in the previous frame
    • 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
    • G09G3/204Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames being organized in consecutive sub-frame groups
    • 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
    • G09G3/28Control 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 luminous gas-discharge panels, e.g. plasma panels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)

Description

200306523 五、發明說明α) 領域 本發明係關於顯示裝置上顯示用視頻圖像之處理方法 ’具有至少備第一時間反應之第一種發光元件,和備第二 時間反應之第二種發光元件,第二時間反應較第一時間反 應為慢’利用驅動第一種發光元件供具有預定能量的一圖 框為之。此外,本發明又關於處理視頻圖像之相對應裝 置。 . 先前技術 的顯 技術 像品 好之 人的 質。 已習 此差 和前 假相 效應 正虽舊}示準T V技術(c R T )已幾乎到達極限時,有些新 示面板(L C D,P D P…)受到廠商日益垂青。當然,此等 如今可達成平坦顏色面板,深度極為有限。 ^見歐洲TV最近一代,已進行一大堆工作以改進其圖 質。因此’新技術必須提供可與標準τν技術媲美或更 圖像品質。一方面,此等新技術有可能賦予厚度吸引 ^,螢幕,但另方面,會產生新的假相,降低圖像口 大部份與TV圖像不同,且更為明顯,因I 於無思識地觀賞舊TV假相。 為人 i ϊ ΐ ϊ Ϊ: ί面板所用三色的時間反應不同之故。 面產生彩色尾部。以電漿顯示 後面 稱為「磷遲滯」。 甶扳(PDP)而έ ,此項 第1圖表示以向下移動在天铁旦 。在騎士褲子上緣可見綠色尾象。上模擬该項磷遲滯 以電漿面板為例,在電漿面"。— 板上’二種碌不具相同性
200306523 五、發明說明(2) 能,因為磷的化學差異。此外 優先,行為均勻性為代價。 綠攝G最慢,藍磷B最快, 此,在運動中的白色物體之後U綠γ部丨:= 圖像」的白色方塊左側),在藍多 此 ^第2圖r 圖像」的白色方塊左側h參;論2面圖積。則面(第2圖「 未來新化學鱗粉的發展,可令綠 免如此問題。然而,目前不可能僅刹田二、、工磷更快, ,以使用壽命期限和亮度為 而紅磷R大多介於其間 0因 顯示 顯示 以避 免如此问难。於叫,α別个可能僅利用 ^人穴 此效應’但可嘗試減少對客戶干擾。於=f處理完全抑制 干擾取麻煩的不是尾 而是其顏色 一種已知解決方式是補正有色尾部, 域中的藍色成份’以減少尾部長度。 ^I飾暫時領 另一解決方式是在顏色尾部加相輔尾,、 此二解決方式均需運動估計,一如現^ ’ 以褪色 決方式。 獻提供之解 發明ϋ皇· 本發明之目的,在於提供減少顯示裝 色尾部之改進和簡化方法與裝置。 置上運動物體彩 按照本發明’ 示用視頻圖像之處 之第一種發光元件 第一時間反應比第 驅動該第一種發光 之第一部份,而在 解決此目的,是利 理方法解決,具有 ,和第二時間反應 二時間反應為慢, 元件,並在一圖框 下一圖框週期内以 用一種顯示裝置上顯 至f備第一時間反應 之第二種發光元件, 以預定能量為一圖框 ,期内以該預定能量 °亥預定能量之第二部
200306523 五、發明說明(3) 份驅動該第一種發光元件。 ’ 此外,上述目的利用一種顯示裝置上顯示用視頻圖像 之處理裝置,具有至少備第一時間反應之第一種發光元件 ’ ,和備第二時間反應之第二種發光元件,第二時間反應較 第一時間反應為慢;以及驅動機構,對一圖框以預定能量 驅動該第一種發光元件,其中該驅動機構得以在一圖框週 期内,以該預定能量之第一部份,而在隨後週期内,以該 預定能量之第二部份,驅動該第一種發光元件。 本發明裝置和方法之進一步有利發展,界定於申請專 利範圍附屬項内。尤其是,第一種發光元件(例如藍色元 件)可在一圖框週期内驅動,而在後續圖框週期内,以同 4 樣能量驅動,使第一種發光元件所發射能量暫時分佈相當 於第二種發光元件(例如紅色或綠色元件)之時間反應。 由於填遲滯是綠填和紅構緩慢之故,又因不可能使此 等麟加快,故必須令藍成份減緩。 磷遲滯假相可藉能量解說:綠色和紅色成份的一部份 能量,不在現在圖框,而是在次一後續圖框傳輸。可以假 設有某百分比的綠色和紅色能量,傳輸到次一圖框。故使 藍磷和其他一樣慢的基本構想,同樣適用於藍色成份;實 際圖框的藍色成份只有某百分比,可在實際圖框當中傳輸 ,而其餘藍色成份則在次一圖框當中傳輸。 由於此人為遲延的藍色成份是以數位方式(副場編碼)〇 實施,而不像真實磷遲滯效應(對紅色和綠色)是以類比方 式,故有些假相會出現。此等假相在電漿領域稱為「假輪
第7頁 200306523 五、發明說明(4) 廓效應」,可利用副場移動補償,以獲得與其他顏色類似 行為(對人眼而言)的藍色。 實施方式 本發明具體例如圖所示,詳述如下。 磷遲滯問題主要出現在運動中的物體強邊,尤其是在 亮過渡到暗,或暗過渡到亮,已如上述。以PDP而言,結 果是在各亮過渡到暗的後面有帶黃尾部,在前面有藍色面 積。此係磷的時間反應不同所致。本發明構想是藉抑制尾 部之非自然色,使此假相減少對客戶的干擾。因為只靠信 號處理,不可能使綠磷G (最慢者)加快,故紅磷R和藍磷B 必須減慢,如第3圖所示。 如上所述,磷遲滯可藉能量說明:綠色和紅色成份之 一部份能量,不在現時圖框,而是在次一圖框之際傳輸。 假設分別有某百分比α或召的綠色G或紅色R,在次一圖框 傳輸,α優於/5 ,因為綠磷遲滯甚於紅磷。對藍色成份有 同樣構想,故實際圖框的藍色成份大約只有1 0 0 - α %,會 在實際圖框之際傳輸(紅色成份大約100-也會傳輸 ,以便將尾部完全褪色)。而實際圖框的藍色成份α %, 會在次一圖框之際傳輸(實際圖框的紅色成份α - /9 %亦可 傳輸,以便將尾部完全褪色,已如前述)。此等修飾可在 視頻位準為之,正好可影響視頻值。 如第4圖所示,一或二單色圖像(視紅色是否遲滯而定 ),例如藍色遲滯和紅色遲滯,必須用來儲存遲滯圖像(最 後圖框η_1的藍色成份α %,和最後圖框η-1的紅色成份α
第8頁 200306523 五、發明說明(5) - /5 % )。 對各圖框η,由前一圖框η- 1分別所得藍色遲滯圖像 (藍色遲滯)或紅色遲滯圖像(紅色遲滯),加在分別原來藍 色或紅色圖像之100-α%或100-α+冷%。所得圖像可顯 示於電漿顯示器上。則原有分別藍色或紅色圖像之α或α - yS ,即分別儲存於遲滯圖像,藍色遲滯或紅色遲滯。 如上所述利用每圖框五圖素在黑色背景上移動(與第6 圖比較)之白色盒,可以做為實例。當圖素通電時,圖像 之白色圖素與原有視頻信號同值,但為了在螢幕上也有同 樣視頻值起見(以獲得完美白色),必須對面板送下列數 值: 紅色 25 5 x (l — (a -^)/100) 綠色 2 5 5 藍色 2 5 5 x ( 1 - α /100) 圖素已通電時,白色圖素有了新值: 紅色 2 5 5 χ (1 一( α -石)/1 0 0 ) + 2 5 5 x ( a - β )/100 = 255 綠色 2 5 5 藍色 255x U-α /100)+255χ α /100-255 最後,當圖素斷電時,正式白色圖素值為: 紅色 255χ (α-β)/10 0) 綠色 0 藍色 255χ α/100 按照第5圖的第1圖框,所有黑色圖素是真正黑色(三
200306523 五、發明說明(6) 種成份都是0)。在第5圖的第2圖框,顯示帶黃色的方塊, ' 是減遲滯圖像所致。在第3圖框,中間的白色方塊,是現 _ 時圖像和第2圖框的遲滯圖像所致。由於方塊運動,在左 側有帶黃的前緣,右側有黑帶藍色邊緣。在第4圖框,有 要顯示的黑色圖像,但顯示的是儲存之遲滯圖像,是帶藍 方塊的結果。眼睛可看到第5圖底部圖像,即白色方塊, 帶有彩色尾部,在帶黃部份起,到帶藍部份止。 人眼的行為可藉第6圖說明。問題是眼睛不能直接看 到視頻位準,而是遵循運動,沿第6圖之積合線,通過圖 框之副場S F把光積合。所以,在此情況下,眼睛感受到缺 乏亮光,故眼睛看到尾部,因磷遲滯之故,藍色面積在圖f 框亮部和暗部的過渡區。 事實上,遲滯圖像之人為剩餘藍色成份,是以數位手 段(副場編碼),而非像真實磷遲滯(紅色和綠色)之類比方 式實施,故傳統的PDP假相出現。此假相為電槳領域所公 知,稱為「假輪廓效應」。 此假相可用副場移動減少,如專利申請案PD 980 0 54 所倡議。第7圖表示對前述實施例實施副場移動的結果。 可見藍色是剛好加在過渡區,眼睛在此感受缺乏亮光 ,即沿中間積合線。 由於此項處理,藍色行為對人眼等於綠構和紅填的遲 滯。 第8圖表示以黑色背景上運動的白色方塊而言,實施 該項演算。未經補償之顯示圖像顯示彩色尾部,而經補償
第10頁 200306523 五、發明說明(7) 的顯示圖像顯示灰色尾部。位於運動物體後面和前面的磷 ' 尾部,未改變長度,惟已褪色。如此處理,使運動物體在 客戶眼中看來更加自然。 副場移動大多數用來補償動態假輪廓效應,亦增加明 銳性。故如果已用副場移動,剛好需要加視頻處理。 演算方塊圖見第9圖。一如已知用途,紅、綠、藍信 號R,G,B輸入於圖框記憶體1以及運動估計器2。運動估計 器2亦接收圖框記憶體1之輸出信號。此外,輸入信號R,G, B用於副場寫碼3。為此,經伽瑪功能中,並遵循本發明磷 遲滯補償5。圖框記憶體6接至磷遲滯補償單位5,以提供 個別遲滯圖像。磷遲滯補償單位5之輸出,輸入到副場寫 4 碼單位3。副場移動單位7從運動估計器2和副場寫碼單位3 所得信號,形成輸出信號。 總之,上述發明具有下列優點: 一把填遲滞假相所引起,更一般而言是矩陣面圖内 所用三色的不同時間反應所致的尾部褪色。 一可以很簡單實施。 一很具彈性,因為可適用於任何種磷或面板,其中 綠色和紅色遲滯的百分比可完全變異。 此外,本發明可應用於所有矩陣顯示器,基於呈現三 色不同時間反應之來源,並使用灰度解釋(脈波寬度調變) 之類似方式。尤其是可應用於PDP,LC0S等。
第11頁 200306523 圖式簡單說明 第1圖表示磷遲滯效應之實施例; 第2圖表示運動物體,在物體後面有黃綠尾部,前面 有藍色面積; 第3圖表示紅、綠、藍磷元件之時間反應; 第4圖表示處理視頻信號用之方塊圖; 第5圖表示按照第4圖處理之校正,產生動態假輪廓效 應 , 第6圖表示原理圖,以說明磷遲滯效應; 第7圖表示原理圖,以說明磷遲滯效應的褪色尾部; 第8圖表示未經補償之圖像和經補償的圖像; 第9圖表示本發明視頻圖像處理裝置之方塊圖。
第12頁

Claims (1)

  1. 200306523 六、申請專利範圍 1. 一種顯示裝置上顯示用視頻圖像之處理方法,具 ‘ 有至少備第一時間反應之第一種發光元件,和備第二時間 、 反應之第二種發光元件,第二時間反應較第一時間反應為 慢,為一圖框以預定能量驅動該第一種發光元件, 其特徵為 在一圖框週期内以該預定能量之第一部份,而在後 續圖框週期内以該預定能量之第二部份,驅動該第一種發 光元件者。 2. 如申請專利範圍第1項之方法,其中第一部份和第 二部份之和,相當於總預定能量者。 3. 如申請專利範圍第1或2項之方法,其中該第二種 + 發光元件是在該一圖框週期内,以同樣預定能量驅動,故 在該一圖框週期内,由該第一種和第二種發光元件發射同 樣能量者。 4. 如申請專利範圍第1項之方法,其中顯示裝置又含 有備第三時間反應之第三種發光元件,第三時間反應較第 二時間反應為慢者。 5. 如申請專利範圍第1項之方法,其中顯示裝置包含 電漿顯示面板者。 6. 如申請專利範圍第4項之方法,其中第一種發光元 件包含藍璃元件,第二種包含紅填元件,而第三種包含綠 填元件者。 7. 如申請專利範圍第1項之方法,其中該預定能量的 第一和第二部份間之因數,是預先測定,並用來計算各該
    第13頁 200306523 六、申請專利範圍 第一種發光元件之驅動能量者。 8. 如申請專利範圍第1項之方法,包含步驟為,在一 _ 圖框之該第一種發光元件全部之圖框記憶體(6 )内,儲存 預定能量之至少第二部份,以供在稍後圖框週期内顯示 者。 9. 一種在顯示裝置上顯示用視頻圖像之處理方法, 具有至少備第一時間反應之第一種發光元件,和備第二時 間反應之第二種發光元件,第二時間反應較第一時間反應 為慢;以及驅動機構,以預定能量為一圖框驅動該第一種 發光元件,其特徵為 該驅動機構可在一圖框週期内,以該預定能量之第Φ 一部份,並在後續圖框週期内,以該預定能量之第二部份 ,驅動該第一種發光元件者。 10.如申請專利範圍第9項之裝置,其中預定能量的第 一和第二部份之和,相當於總預定能量者。 1 1.如申請專利範圍第9或1 0項之裝置,包含控制機構 (3至6 ),在一圖框週期内,以同樣該預定能量驅動該第二 種發光元件,故在該一圖框週期内,從該第一種和該第二 種發光元件發射同樣能量者。 12. 如申請專利範圍第9項之裝置,其中該顯示裝置又 包含備第三時間反應之第三種發光元件,第三時間反應係 較該第二時間反應為慢者。 13. 如申請專利範圍第9項之裝置,其中該顯示裝置包 含電槳顯示面板者。
    第14頁 200306523 六、申請專利範圍 1 4.如申請專利範圍第1 2項之裝置,其中該第一種發 光元件包含藍磷元件,該第二種包含紅磷元件,而該第三 種包含綠構元件者。 1 5.如申請專利範圍第9項之裝置,其中又包含圖框記 憶體(6 ),對一圖框的該第一種發光元件全部,儲存預定 能量之第二部份,以便在稍後圖框週期内顯示者。
    第15頁
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