TW541513B - DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same - Google Patents

DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same Download PDF

Info

Publication number
TW541513B
TW541513B TW089116625A TW89116625A TW541513B TW 541513 B TW541513 B TW 541513B TW 089116625 A TW089116625 A TW 089116625A TW 89116625 A TW89116625 A TW 89116625A TW 541513 B TW541513 B TW 541513B
Authority
TW
Taiwan
Prior art keywords
column
patent application
display
scope
selection
Prior art date
Application number
TW089116625A
Other languages
English (en)
Inventor
Lucian Remus Albu
Peter J M Janssen
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of TW541513B publication Critical patent/TW541513B/zh

Links

Classifications

    • 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
    • G09G3/2011Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3674Details of drivers for scan electrodes
    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235Field-sequential colour display
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243Details of the generation of driving signals
    • G09G2310/0251Precharge or discharge of pixel before applying new pixel voltage
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243Details of the generation of driving signals
    • G09G2310/0259Details of the generation of driving signals with use of an analog or digital ramp generator in the column driver or in the pixel circuit
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/027Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/06Details of flat display driving waveforms
    • G09G2310/066Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
    • 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
    • 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • H04N2005/745Control circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Description

541513 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(1 本發明係關於一驅動電路,如定義於申請專利範圍第”頁 之前文中的。 本發明更關於一使用此驅動電路的光電顯示裝置。 彩色顯示系統是已知的,而不同顏色的光棒連續地捲動 通過一單一的光電光調制器面板以產生一彩色的顯示。例 如,見一般指定的美國專利5,532,763,在此併入參考。 此顯示系統特別適合用於以安排在連續畫面中之連續地 更新影像訊息信號的形式顯示彩色訊息,像彩色視頻訊息 ’其中每-畫面由合成的子畫面所組成,例如,紅色,綠 色和藍色子畫面。 这些系統使用-由-像素之列和行矩陣陣列所組成的光 電光碉制n,用以根據此影像訊息信號調制光在連續的畫 面週期期^。此信號訊息應用於此陣列之像素列的一直線 在每—畫面週期期間的一時間。此—矩陣陣列最好是”主 動的’:,#即,每一像素經由-主動切換元件連接至此陣 列’爲了預防像素間的串擾。 一因二在:,原色系統中訊息的每—子畫面必須被提出在 逹率光:光凋制杂的畫面上在-畫面週期間,此提出的 逮率比一三畫面系統的速率快三倍。 用 S夕上的反射王動矩陣液晶顯示器(AMLCD)使 扭轉向列狀(TN)之效應的液晶和電晶體當作主 牛,是較佳的光電光調制器。此-反射裝置可以 電柄ί =的像素’由於此配線和開關可以整合在此反射 下面的石夕基板上。此外,此―裝置可以引述在-比先 ^^適用 χ 297公釐) — 1^--------裝--------訂-------- (請先閱讀背面之注意事項再填寫本頁) -4- 541513 A7 五、發明說明(2 ) 經濟部智慧財產局員工消費合作社印製 前的透射裝置遠高的速率。 然而,此TN LC材料的最快反應時間(要求驅動此lc材料 至黑狀態的時間)是在1〇〇微秒的數量級,而爲了定位一列 僅是5微秒。此外,此像素電容隨外加電壓和時間二者而 變。 結果,此顯示數據傳輸的精確度和此先前儲存資訊之剩 餘狀態有關。此意味-特別顏色的明亮度與先前顏色的明 亮度有關。二維的查閱表目前用以提供修正質給新信號, 爲了避免此色彩的人造品。 在公開的專利書W0 96/00479中,此在一單_面板色彩連 續投影機中的-TN液晶材料之反應時間慢和隨電壓改變之 像素電容的問Μ用一具有較快反應_,和具有會際上盥 電壓無關之電容的光電材料來代替,像—鐵電液晶材二/、 然而,鐵電液晶材料和類似的光電材料具有一記憶效 。因此,、wo 96/00479敎導—”空白脈衝,,的使用^即 一輔助仏號,以在每一帶有顯示數據之新定址之前重置 像素。此一空白脈衝外加於此線選擇週期之某部分期間, 在此h況中經由不是此列電極就是此行電極與—參考電極 結合:其中像二極體的二端子裝置用作此主動矩陣切:- 件,或經由一共反電極在此情況中,像TFTS的三端子裝 用作此主動矩陣切換元件0 此一設計需要分離的裝置用以產生重置信號,不是直接 地就是如同一輔助電壓和一參考電壓結合經由一分離= 考私極組。此電路裝置並不輕易地結合於驅動電路中、 應 此 元 置 參 其 II: ΦΦΜ--------^--------00 (請先閱讀背面之注意事項再填寫本頁〕 本紙張尺錢财國準(CNS)A4規格⑽x 297公髮) 541513 A7 ^--------- B7__ 五、發明說明(3 ) 被叹计以轉換進來的數位資訊信號(例如,數位電視信號或 電腦顯示信號)成爲類比信號適合驅動此顯示器。 因此,本發明的一目的在於提供驅動電路以驅動一光電 顯不裝置’其中此造成自此光電材料之剩餘物狀態的色彩 人造品被降低或消除而不必使用數據信號的修正基於來自 ㈤面走址數據信號之像素的剩餘物狀態,且不需要使用產 生一重置信號的分離裝置。 本發明的另一目的在於提供一光電顯示裝置結合此驅動 電路。 本备明還有另一目的在於提供一彩色顯示系統結合此一 光電顯示裝置。 這些目的被根據本發明定義於申請專利範圍第丨項的驅動 %路所完成。 本喪明更多有利的具體裝置定義於相關的申請專利範圍 中。 經濟部智慧財產局員工消費合作社印製 二根據本發明,在一光電顯示裝置中產生自前面定址數據 信號之像素的剩餘物狀態的色彩人造品實際上藉由提供一 DAC驅動器電路的裝置用以重置此像素至一先於定址此下 一數據信號組之預定狀態來降低或消除。 最好,此重置信號由一通用斜面產生器所驅動並在用下 一組數據信號定址之前外加於選擇的像素。 取好’此來自於類比斜面產生器的重置脈衝在此斜面產 生之前外加於選擇的像素,而此選擇用來重置的像素是預 先的在來自於被選擇用以定址之像素的定址序列中。 -6 - 經濟部智慧財產局員工消費合作社印製 541513 Α7 __Β7 五、發明說明(4 ) 例如’在一具有N列像素的顯示裝置中,其中此控制電路 被没足以選擇列η用於定址和列πι用於重置,其中m是來自 於列η之如的1至1 〇列’例如,m=η+8。 根據本發明的一較佳具體裝置,此控制電路被設定以選 擇用於定址的列在以下的序列中:η,η+1/3Ν,Π+2/3Ν, η+1 ’ η+1/3Ν+1,η+2/3Ν+1,η+2,η+1/3Ν+2,等等,而選 擇用於重置的列是在以下的序列:m,m+ 1/3Ν,m + 2/3N , m+1,m+l/3N+l,m+2/3N+l,m+2,m+l/3N+2,等等。 一結合本發明之驅動電路的光電顯示裝置,和一結合此 一光電顯示裝置的顯示系統被包括於本發明的範噚中。最 好,此一顯示系統是一單一面板,捲動的彩色顯示系統。 此重置脈衝的使用排除使用此一顯示系統之先前版本在 此捲動的彩色帶之間的防護帶以防護對抗彩色人造品的需 求。此防護帶的消除增加在此一系統中的流明通量。 本發明的這些和其他的容貌由參考描述於其後之具體裝 置的闡述而會更明顯。在圖例中: 圖1爲一先前技術之典型的AMLCD顯示裝置之簡化的平 面視圖; 圖2爲一先前技術之追蹤和同步取樣電路的概要圖; 圖3,一用於根據先前技術之單一面板三色顯示裝置之彩 色連續驅動方案的圖示説明; y 圖4爲一用於圖3之驅動方案的時序圖; 圖5爲—類似於圖3之彩色連續驅動方案的圖示 括本發明之一重置方案的一具體裝置; 匕 -7- 本紙張尺度適財@ g^^(CNS)A4規格⑽χ挪公董) ______ —1--------—-----訂-------- (請先閱讀背面之注意事項再填寫本頁) 五 經濟部智慧財產局員工消費合作社印製 541513 '發明說明 從愛:中:斜面產生器3〇產生-類比斜面信號,其向上部 、π $ —較低的値至一最大値,而比較器32將—灰階訊自 2位字D代表與此斜面信號的數位字表示來比較。當此^ 開路其匹配此由數位自表示的値,開關34 ”吓即,隔離)而此類比信號被儲存在行3 8的電容3 6中。 敗圖3圖示地顯示一彩色連續的驅動技術用於先前技術的一 口面板之一色_示裝置。當紅色,綠色和藍色照明帶由 此頭不器的上至下捲下時,對於每一色彩的像素訊息被更 新’ ^ —時間的—列,剛好在相關色彩之照明帶曝光之前 二此藉由連續地啓動三列,個別地標示爲汉,〇和6在一列 :擇週期間,來完成。如在圖4之時序圖的前三條線所示, 认擇的順序依照R,G,B的次序。亦即,對於一 N列的顯示 器,此第η列被選擇用以更新R數據,然後第n+l/3 n列被選 擇用以更新G數據,然後第n+2/3 N列被選擇用以更新B數據 ,然後第Π+1列被選擇用以更新R數據,等等。 在每一列選擇週期期間,相當於取樣之顯示數據的類比 仏唬,例如,視頻數據,推導自由一通用斜面產生器所產 生的斜面波形,(顯示於圖4之時序圖的最後一條線中)被外 加於此行電極並經由電晶體傳輸至此像素電極。在一列週 期的末端,此電晶體被關閉,而數據被儲存於此像素中。 此像素電容與電壓和時間都有關。對於一快速切換TN乙〔 材料的反應時間,是在大約1〇〇微秒的數量級,然而對於一 SXGA彩色視頻顯示器(1024列)的列週期典型地僅是大約$ 微秒。 -10- 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ί#·1 (請先閱讀背面之注意事項再填寫本頁) 訂--------業. 541513 A7 B7 五、發明說明(8 ) —結果,此視頻數據傳輸的精確度被影響。亦即,儲存於 每像素中I訊息的値被先前儲存値的餘數所影響。因爲 每H口'在相關色彩之照明帶的曝光前被更新,該色彩 的明党度與先前色彩之剩餘的明亮度有關。爲修正此錯誤 ,使用-補償技術,其中外加一產生自二維查閲表(岡的 修正信號。 干根據本發明的敎導,爲避免對於此一修正信號,和LUT的 需求,使用-如圖5中之修正的驅動順序。在此順序中,像 素在儲存下一視頻數據之前被重置於一暗狀態,藉由外加 重置脈衝木整列像素,一預定數目的列在此列被重置 或更新之前。此步驟消除任何先前儲存之訊息的記憶體, 提供重置和更新之間過去的時間超過此液晶材料LC的安定 時間對於一 100微秒的安定時間和一 5微秒的列週期,重 置需求僅發生八列之前。 μ驅動至一亮狀態當然也是可能的,其傾向於在一較亮狀 態的結果,但驅動至一暗狀態較快,且也傾向於更飽和色 彩的結果。 重置脈衝在每一次更新前被加於m列,亦即,以n+m, n+1/3 N+m的順序等等(顯示於圖4中之時序圖的第四,第五 和第六條線中)。其也可能在一時間重置一個以上的列,例 如在此列被更新之如的八列,或,n+1至n+8。 第 信 此被重置的列在此列選擇週期之初始部分(圖4的第 .和第三條線)期間被啓動,在斜面產生之前,當此斜面 號在一極限値(圖4的最後一條線)時。在此方法中,用於重 本紙張尺度適用中國國家標準(CNS)A4規格( x 297公董) -11 經濟部智慧財產局員工消費合作社印製 541513 A7 ------- B7 __ 五、發明說明(9 ) 置和更新的區間重⑨,使得計時和數據等級維持不受影響。 圖6A和6B _不一時序圖和—sxga列定址電路,個別地 ,使一重置脈衝能夠褚4 、人丄 、 幻戳外加於在一列選擇週期期間之一列 在爲入之岫八列。圖6八顯示此斜面信號,此列選擇信號 和列預寫或重置信號,個別地。此斜面信號開始在一高的 絕對値並斜下至-低的絕對値,在該點處這些行被放電, 而此斜面產生态開始另一斜面。此列選擇信號選擇此列用 以預寫在介於一斜面的完成(斜面信號已達到其最低的絕對 値)和此斜面么號回到其最鬲的絕對値之間區間的期間。然 後此列預寫信號發信號給取樣和同步電路以供給此斜面; 號給在選擇的列中的像素在下一斜面的產生之前的區間期 間,在此期間斜面信號是在其最高的絕對値,因此在下一 更新之蓟重置此像素至其暗狀態。此控制電路適合用於圖 6Β中所示之具有1024列之SXGA顯示器來完成以上順序。對 於此被重置列的十位元列定址被送入一以列解碼器6〇之形 式的選擇裝置。邏輯電路62之形式的寫入裝置,由AND閘 63和64及一OR閘65所組成,將列選擇和列預寫信號與列定 址比較,並提供控制信號給位階移位器66爲了列選擇和列 預寫信號的應用給此適當的列。 一類似於圖6A和6B的裝置顯示於圖7A和7B中,對於此情 況其中在列η之前立即被更新的八列η-1至n-8都同時被重置 。在此情況中’邏輯電路7 2包括一額外的〇 r閘6 7,其接收 對於列η-1至n-8之輸入自列解碼器60並將其輸出送至AND閘 64的輸入1。 -12- 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ; M -------tr--------AVAW (請先閱讀背面之注意事項再填寫本頁) 541513 A7 _— —_____B7___________ 五、發明說明(1〇 ) 如已知的,大部分的光電顯示裝置,及特別是液晶顯示 裝置,用一 AC電壓驅動,通常由將驅動關於每一新訊息畫 面之波形的極性反相來完成。也如已知的,此交替的行(或 列)的極性,或行組(或列組)也可以關於每一新晝面被反相 。然而,必須知道本發明的原理,亦即,當作一重置膝衡 的斜面信號之高絕對値的應用給寫入之前選擇的像素,可 適用而不必考慮此驅動波形之這些極性的反相。 本發明已經依據有限數目之具體裝置而被描述。其他的 具la I置’具體裝置的變化和確認相等的技術對於那些技 術上已熟練的人變成很明顯,且想要被包含在本發明的範 疇内,如説明在隨附的申請專利範圍中的。例如,當本發 明已經主要以用於一單一面板投影顯示系統的背景來描述 時,其也可以用於標準三面板系統中以改善移動物體的銳 利度(預防由於相同液晶記憶效應的”模糊,,)。 ^ 裝--------訂-------- C請先間讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)

Claims (1)

  1. 541513 A8 B8 C8 D8 第089116625號專利申請案 中文申凊專利範圍修正本(91年6月) 申請專利範圍 L 一種用於一光電顯示裝置的驅動電路,包含一像素的主 動列和行矩陣陣列,此驅動電路包含: 一控制電路(50)用以用一類比顯示信號連續地對此裝 置的像素定址,此控制電路包含選擇裝置(6〇)用以在一 列(14)選擇週期期間選擇一列像素,和寫入裝置(62,66) 用以在此列選擇週期期間供給此類比信號給此選擇的顯 示元件(20)在一個以上的行(15); 追細和同步取樣電路(29)用以轉換一進來的數位顯 示杬號流成為一類比顯示信號,此追踪和同步取樣電路 (29) 包括一斜面產生器(3〇)用以產生一類比斜面此列選擇 週期期間從一高的值降至一低的值,和取樣及同步裝置 (3 1)用以從此斜面產生器(30)選擇一類比信號相當於此取 樣的數位信號,並與此類比信號同步為了應用於此選擇 的顯示元件(20); 其特徵為,此控制電路(50)的選擇裝置(6〇)設定以選擇 在寫入之前被重置至一預定狀態的顯示元件(2〇),而寫 入裝置(62,66)設定以在來自追踪和同步取樣電路(29)之 類比訊息信號的選擇之前供給一來自此類比斜面產生器 (30) 的重置脈衝給此選擇的顯示元件(2〇),因此產生自此 光電材料之剩餘狀態的瑕疵被降低或消除。 2 ·根據申請專利範圍第1項的驅動電路,其中此被選擇用以 重置的顯示元件(20)由被選擇用以定址的顯示元件(20)以 定址的順序提出。 3. 根據申請專利範圍第1項的驅動電路,其中此控制電路 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 々、申請專利範圍 (50)的寫入裝置(62,66)設定以在來自追]?宗和同步取樣電 路之類比訊息信號的選擇之前供給此來自此類比斜面產 生器的重置脈衝給此選擇的像素。 4. 根據申請專利範圍第3項的驅動電路,其中此控制電路 (50)的選擇裝置(62,66)設定以在此斜面產生之前供給此 來自此類比斜面產生器(30)的重置脈衝給此選擇的顯示 元件(20)。 5· 根據申請專利範圍第1項的驅動電路,具有Ν列14顯、示元 件20,其中此控制電路(50)的選擇裝置(62,66)設定以選 擇列η用於定址及列m用於重置。 6· 根據申請專利範圍第5項的驅動電路,其中m是列η之前 的1到10列。 7. 根據申清專利範圍第5項的驅動電路,其中111==11+8。 8_根據申請專利範圍第5項的驅動電路,其中此控制電路 (50)的選擇裝置(62,66)設定用以下的序列來選擇用於定 址的列:η,Π+1/3Ν,η+2/3Ν,η+1 , η+1/3Ν+1, η+2/3Ν+1,η+2,Π+1/3Ν+2,···· 9· 一種光電顯示裝置,結合根據申請專利範圍第1項的驅動 電路。 10· —種單一面板捲動彩色顯示系統,包含至少二個不同色 彩的捲動照明帶,並結合根據申請專利範圍第9項的顯示 裝置。 1 1 ·根據申請專利範圍第1 〇項的顯示系統,其中沒有任何防 護帶在此捲動色彩帶之間。 -2- 本紙張尺度適用中國國家標準(CNS) Α4規格(210 X 297公釐)
TW089116625A 1999-08-17 2000-08-17 DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same TW541513B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/375,952 US6320565B1 (en) 1999-08-17 1999-08-17 DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same

Publications (1)

Publication Number Publication Date
TW541513B true TW541513B (en) 2003-07-11

Family

ID=23483049

Family Applications (1)

Application Number Title Priority Date Filing Date
TW089116625A TW541513B (en) 1999-08-17 2000-08-17 DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same

Country Status (6)

Country Link
US (1) US6320565B1 (zh)
EP (1) EP1121682A1 (zh)
JP (1) JP2003507763A (zh)
KR (1) KR20010080158A (zh)
TW (1) TW541513B (zh)
WO (1) WO2001013352A1 (zh)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7193625B2 (en) 1999-04-30 2007-03-20 E Ink Corporation Methods for driving electro-optic displays, and apparatus for use therein
US7999787B2 (en) 1995-07-20 2011-08-16 E Ink Corporation Methods for driving electrophoretic displays using dielectrophoretic forces
JP4637315B2 (ja) * 1999-02-24 2011-02-23 株式会社半導体エネルギー研究所 表示装置
US7193594B1 (en) 1999-03-18 2007-03-20 Semiconductor Energy Laboratory Co., Ltd. Display device
US7145536B1 (en) 1999-03-26 2006-12-05 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device
US6952194B1 (en) 1999-03-31 2005-10-04 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device
US6753854B1 (en) 1999-04-28 2004-06-22 Semiconductor Energy Laboratory Co., Ltd. Display device
US7119772B2 (en) 1999-04-30 2006-10-10 E Ink Corporation Methods for driving bistable electro-optic displays, and apparatus for use therein
US7012600B2 (en) 1999-04-30 2006-03-14 E Ink Corporation Methods for driving bistable electro-optic displays, and apparatus for use therein
KR100563826B1 (ko) * 1999-08-21 2006-04-17 엘지.필립스 엘시디 주식회사 액정표시장치의 데이타구동회로
US6429858B1 (en) * 2000-03-29 2002-08-06 Koninklijke Philips Electronics N.V. Apparatus having a DAC-controlled ramp generator for applying voltages to individual pixels in a color electro-optic display device
JP4330059B2 (ja) * 2000-11-10 2009-09-09 カシオ計算機株式会社 液晶表示装置及びその駆動制御方法
US6850218B2 (en) * 2000-12-18 2005-02-01 Brillian Corporation Frame prewriting in a liquid crystal display
US6636196B2 (en) * 2001-06-08 2003-10-21 Koninklijke Philips Electronics N.V. Electro-optic display device using a multi-row addressing scheme
IL145245A0 (en) * 2001-09-03 2002-06-30 Jtc 2000 Dev Delaware Inc System and method including vector-matrix multiplication
US9530363B2 (en) 2001-11-20 2016-12-27 E Ink Corporation Methods and apparatus for driving electro-optic displays
US9412314B2 (en) 2001-11-20 2016-08-09 E Ink Corporation Methods for driving electro-optic displays
US8593396B2 (en) 2001-11-20 2013-11-26 E Ink Corporation Methods and apparatus for driving electro-optic displays
US7952557B2 (en) 2001-11-20 2011-05-31 E Ink Corporation Methods and apparatus for driving electro-optic displays
US8558783B2 (en) 2001-11-20 2013-10-15 E Ink Corporation Electro-optic displays with reduced remnant voltage
US8125501B2 (en) 2001-11-20 2012-02-28 E Ink Corporation Voltage modulated driver circuits for electro-optic displays
US7528822B2 (en) 2001-11-20 2009-05-05 E Ink Corporation Methods for driving electro-optic displays
JP4187962B2 (ja) * 2001-11-22 2008-11-26 シャープ株式会社 マトリクス表示装置
US6909427B2 (en) * 2002-06-10 2005-06-21 Koninklijke Philips Electronics N.V. Load adaptive column driver
US20080024482A1 (en) 2002-06-13 2008-01-31 E Ink Corporation Methods for driving electro-optic displays
US6972778B2 (en) 2002-06-27 2005-12-06 Koninklijke Philips Electronics N.V. Color re-mapping for color sequential displays
US20130063333A1 (en) 2002-10-16 2013-03-14 E Ink Corporation Electrophoretic displays
CN102074200B (zh) * 2003-03-31 2012-11-28 伊英克公司 驱动双稳态电光显示器的方法
CN100446072C (zh) * 2003-03-31 2008-12-24 伊英克公司 驱动双稳态电光显示器的方法
US10726798B2 (en) 2003-03-31 2020-07-28 E Ink Corporation Methods for operating electro-optic displays
US8174490B2 (en) 2003-06-30 2012-05-08 E Ink Corporation Methods for driving electrophoretic displays
WO2005020199A2 (en) 2003-08-19 2005-03-03 E Ink Corporation Methods for controlling electro-optic displays
US8928562B2 (en) 2003-11-25 2015-01-06 E Ink Corporation Electro-optic displays, and methods for driving same
KR100541975B1 (ko) * 2003-12-24 2006-01-10 한국전자통신연구원 능동 구동형 el의 소스 구동회로 및 그 구동방법
KR20050082643A (ko) 2004-02-19 2005-08-24 삼성에스디아이 주식회사 액정표시장치의 구동방법
US7492339B2 (en) 2004-03-26 2009-02-17 E Ink Corporation Methods for driving bistable electro-optic displays
US8289250B2 (en) 2004-03-31 2012-10-16 E Ink Corporation Methods for driving electro-optic displays
JP4498827B2 (ja) 2004-06-03 2010-07-07 トヨタ自動車株式会社 電力変換装置およびそれを備えた車両
US11250794B2 (en) 2004-07-27 2022-02-15 E Ink Corporation Methods for driving electrophoretic displays using dielectrophoretic forces
US7453445B2 (en) 2004-08-13 2008-11-18 E Ink Corproation Methods for driving electro-optic displays
JP5928840B2 (ja) 2010-04-09 2016-06-01 イー インク コーポレイション 電気光学ディスプレイを駆動するための方法
US11710445B2 (en) 2019-01-24 2023-07-25 Google Llc Backplane configurations and operations
US11081064B1 (en) 2020-01-13 2021-08-03 Samsung Display Co., Ltd. Reference signal generation by reusing the driver circuit
US11257416B2 (en) 2020-02-14 2022-02-22 Samsung Display Co., Ltd. Voltage mode pre-emphasis with floating phase

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492721B1 (en) 1990-12-27 1997-03-12 Koninklijke Philips Electronics N.V. Color display device and circuitry for addressing the light valve of said device
KR100383337B1 (ko) 1994-06-23 2003-07-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 디스플레이장치및칼라투사형시스템
DE69623153T2 (de) 1995-03-06 2003-04-17 Thomson Multimedia Sa Treiberschaltungen für Datenleitungen mit einem gemeinsamen Rampensignal für ein Anzeigesystem

Also Published As

Publication number Publication date
EP1121682A1 (en) 2001-08-08
US6320565B1 (en) 2001-11-20
WO2001013352A1 (en) 2001-02-22
JP2003507763A (ja) 2003-02-25
KR20010080158A (ko) 2001-08-22

Similar Documents

Publication Publication Date Title
TW541513B (en) DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same
US5684504A (en) Display device
KR100319221B1 (ko) 액티브 매트릭스형 표시장치
TW528906B (en) Driving method and driving circuit for electro-optical device, electro-optical device and electronic apparatus
TW571151B (en) Liquid-crystal display device of field sequential color driving type and method thereof
US6384817B1 (en) Apparatus for applying voltages to individual columns of pixels in a color electro-optic display device
US5598180A (en) Active matrix type display apparatus
US7623107B2 (en) Display devices and driving method therefor
EP0313876A2 (en) A method for eliminating crosstalk in a thin film transistor/liquid crystal display
US7161568B2 (en) Method of driving liquid crystal display
US6738036B2 (en) Decoder based row addressing circuitry with pre-writes
US8013825B2 (en) Video system including a liquid crystal matrix display having a precharge phase with improved addressing method
TW554305B (en) Increased-frequency addressing of display system employing reflective light modulator
JPH06337657A (ja) 液晶表示装置
US6452580B1 (en) Active matrix liquid crystal display device
JP2006184762A (ja) 表示駆動装置、表示装置及び表示駆動装置の駆動制御方法
KR100627995B1 (ko) 상이한 비디오 표준들로부터의 비디오 신호들을 표시하도록 적용된 매트릭스 디스플레이 장치
US20030112211A1 (en) Active matrix liquid crystal display devices
JPH06266310A (ja) 液晶表示装置
WO1997031359A2 (en) Display device
KR100612360B1 (ko) 액정 표시 장치
JPH08146925A (ja) 液晶パネル駆動装置
JPH04355717A (ja) 液晶表示装置
JP2005517201A (ja) Lcosの列メモリの影響の減少
JPH08334745A (ja) 液晶装置及びその駆動方法

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees