TW218923B - - Google Patents
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- TW218923B TW218923B TW080108334A TW80108334A TW218923B TW 218923 B TW218923 B TW 218923B TW 080108334 A TW080108334 A TW 080108334A TW 80108334 A TW80108334 A TW 80108334A TW 218923 B TW218923 B TW 218923B
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- liquid crystal
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active 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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0224—Details of interlacing
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
A 6 B 6 經濟部中央標準局员工消费合作社印级 五、發明説明(i) 本發明係有鬮於液基顯示器,尤其有闞驅勖有涯矩陣定 址液晶顯示器(下文中簡稱LCD)元件之方法者。 有源矩陣定址LCDs巳被廣泛使用於在袖珍型霣視接收櫬 中,以顯示廣播霣視節目。此外*埴種顬示器係為將來使 用於大面積《視裝置之主要競爭者。 -個在目前有海矩陣LCDs在製造方面所產生之主要問题 係由於其结構複雜性而產量低。 本人等共同申謫而尚未審理中之專利申請案第 8926960.9號掲示一種装置,其複雜程度係經由使用其S 阻性耦合電晶體(RCT)结構而予減小。 先前所提出之RCT结構驅動線路搮供在霣視耋面上並未 面框線條交錯。 本發明之目的係為提供RCT结構驅動線路,允許使用線 間條。 根據本發明,提供用以在一種霣阻耦合霣晶《類型之有 源矩陣定址顒示器内驅動液晶單元之方法•其中在第一埸 期時係經由施加電晶體接通脈衡至相關列位址線上之方法 ,使單元之列H-l, N + l,H + 3,…依序定址,同時使基準訊 號依序施加至與列N, H + 2. H + 4,…相鼷之列位址線上,列 N-1之接通脈衝和列N之基準訊號係相重合;又其中在第 二場期時,單元之列N, H + 2, H + 4,…係經由使《晶體接通 脈銜施加至相顒列位址線上之方式,而依序定址,同時基 準訊號係依序施加至與列N + l, N + 3, N + 5,…相闞之列位址 線上,列N之接通脈衝和列N + 1之基準訊號係相一致者。 -4 - 大戌诂用 扭格(210x297公货) (請先閱讀背面之注意事項再填寫本頁) 經濟部屮央標準局β工消费合作社印製 218923 A 6 _ B 6五、發明説明(2 ) 玆舉列參照附圓•說明本發明寅施例於下: 圈1所示為此埭路用於有源矩陣定址LCD中一姐获晶單 元之RCT结構驅動《路之《路_。 鼸2-4所示為先前不容許線條間插之軀動罨路中之單元 定址波形。 豳5所示為根»本發明之驅勡《路中之波形。 參閲圖1 ,一琴構成為有源矩陣定址LCD之一部分的液 晶單元1-9 ,係經由列位址埭10, 11, 12和13K及行位址 線14, 15和16等予以定址。每一單元之一面平板,係直接 連接至其行位址嫌上,而單元另一面平板係連接至相闥場 效霣晶體17-25之主®極(源極或吸極)上。每一 S晶雅 之另一主霣極係直接連接至相Μ單元之列位址線上。每一 霣晶體17-25之閜極纆由相W閘極霄阻器17-25而連接至 上述列位址線上。例如,單元5係由來自行位址線15 (行 Μ位址線)之資料脈衝,和來自線11 (列Ν位址線)之選 通脈衢Μ及來自埭12 (列Ν + 1位址線)之基準位準所驅動 〇 圖2所示為用於先前驅動轚路之一種形式之單元1-9之 一姐波形。施加於行Μ位址線15之資料眤衝顯示於圈2⑻ 中,視訊號奇数顯框期間被應用*在偶數蹰框期間之姐 36*依需要腌加一組資料脈衝35·此等資料脈衝包含有 -位準•斓視是否有資料項目出現而定*等 位準之有效值依圈框而交替而變換方向,如圖2 ©>中+和 (請先閲讀背面之注意事項再填寫本頁) -5 - 經濟部中央標準局员工消費合作社印製 218923 A 6 _B6_ 五、發明説明(3 ) —號所示。每一資料脈衝持績時間為大。拖加至列N-1位 址線10之臁®如圃2(b)中所示。此等脈衝發生於奇數圓框 遇期中包含有電SVREF和持鑛時間大之基準位準37,其後 立即跟隨有具有波幅為V〇〇H和持鑛時間大之閜控接通脈衝 38。脈衝38暫時與行Μ位址埭15上之資料脈衝對準於一埭 上。相類似之基準和選通脈衢39, 40係於偶數圃框遇期中 施加至位址線10上。 基準和閘控接通脈衝41和42,43和44 (圖2 (〇)施加至 列Ν位址線11上。但係於比埭10相當脈衝為晩之時間t 。 同樣,基準和閘控接通脈衝45和46,47和48 (_ 2 (d))係 施加至列H + 1位址線12上,但在時間上係在比嫌11上相當 哌衝為晩之時間t 。 圖3所示為另一驅動霣路,其中有其後跟《有振幅為 VOOH之Μ控接通脈衝50而振幅為VREr-(圆3 (¾ )之基準 鼷® 49·於奇數圈框時施加至列H-1位址線10上,而有振 幅為VREF·而大於VREF-之基準脈衡51,而其後有與脈衝 50相類似之閜控接通脈街52·係於偁數圈框期間施加至線 10上。相類似脈衝(分別於圖3 (b)和3 (c>中)施加於列N 和列H + 1之線11 , 1 2上,但在分別時間t和21上比腌加於 線10上者為晩。 _4所示為另一種驅動電路•其中,與圖3(a>中脈衝 49和50,51和52相類似之脈衡53和54,55和56 (圖4⑻) ,係施加至嫌10上•又相類似脈衝施加至線12上*而施加 於線11上之基準脈衝57和59波欏相反•分別為VERF·和 -6- (請先閱讀背面之注意事項再填窝本頁) 裝- 訂 線· 太Ψ 扭格(2丨0x297公货) 218923 A6 B6 五、發明説明(4 ) VRBF-。腌加於矩陴中其他速鑛列位址嫌上之脈衢將依相 對應方式交替變化。 參照·2,3和4說明之上述每一 «動《路,皆有某些 缺黏。可明瞭者乃是*當後述各列之W極定址時,列Ν + 1 位址蠊乃捤供基準《壓予列Ν之装置,整儸矩陣中各連鑛 列皆類此狀況*列Ν之基準訊號使列Ν + 1上各霣晶«部分 等通。然而,埴並未產生多大問鼸,因列Η + 1各《晶«原 本即將»之定址。先前諸霣路較嚴重問囲乃為閜控定址脈 衡,欏準為+ 15伏至20伏*對於前列中各《晶髑之影響, 亦即是說,如列Ν在定址時之列Η-1 。在此吠況下.有負 霣壓脈衝有效施加至列Ν-1霣晶Μ閛極上(例如•參閲臞 2),如此將使各霣晶《導通因而等致由列Ν-1顧示諸像 素所顯示資料有所謬誤,此一败應稱為“反衝”。 經濟部中央標準局员工消费合作社印製 (請先閱讀背面之注意事項再蜞寫本頁) 匾5所示為根據本發明之驅動《路中各種波形。在此實 例中,國5⑻所示為奇數圄場(分圖框)通期61和偶數圓 場《期62期問所施加之資料Κ街。供输至列Η-1線10上之 脈銜(顧5(b))包含有奇數埸遇期内之閛控等通脈衝 63和偁数圓場遇期内振幅為VREF+之基準脈衝。每一脈衡 之持績時間為t ·而且瞬時與資料脈衝對齊於一線上•腌 加於列N之脈衝(圓5 (α)包含有振幅為VRHF-並與奇數 顯埸通期内脈衡63·基準脈衝65和偁數圖場遇期内之Μ控 等通脈》66相一致。後一脈街與脈衝64相對延遲一段時間 t 。列Ν + 1各脈® (画5(d))包含有奇數臞場理期內之W 控導通脈® 6 7,與脈銜6 5相對延遲一段時間t ·及偶數圖 -7- 218923 A6 B6 五、發明説明(5 ) (請先閲讀背面之注意事項再填寫本頁) 場遇期内,振幅為VREF-,且與脈衢66相一致之基準脈街 68。列N + 2脈街(·5㈣)包含有奇數壜理期内•振椹 為V*EF.且輿脈衝67相一致之基準赈衝69*及偁數圓場理 期内與脈衝68相對延遲一段時間t之Μ控等通鼷衢70。列 Ν+ 3脈街( 5 Φ )包含有奇數場遇期内且與脈衝69相 對延《 —段時間t之閛控等通臁衢71和在偶數醒場遇期内 ,振幅為卩|«^ ,且與脈衡70相一致之基準脈衝72。 因此,此一電路係於第一埸期内*依時間t間隔及依序 使列N-l, N + 1和N + 3等予K定址•而每隔一列,亦即於列 N, Η+ 2等,提供基準訊號,在次一埸期内,則使列N, H + 2等會依序定址•而使列N-l, N + l, Ν + 3等搌供基準訊 號。在顯示器最後一列則霱要増加一額外列位址嫌•但此 埭不需要任何霣晶黼。 各定址列上,各像素則使其比其先前各霣路保持其正確 資料位準段更長一段時間,因為“反衝”效應係祗於次一 場期内發生•如此祇在所顯示影像中尖銳瑾緣上導致鈍化 ,而有利於覼視者。基準脈銜之出現亦產生相類似之效果 〇 尤其,可明瞭的是*由於各交替列LC装置係依交替嫫期 (分框)轉換,其结果所產生耋面乃相間條交纖。 經濟部中央標準局貝工消费合作社印製 在參照鼷2至4所說明各先前驅勖霣路中,已知者乃是 使用恆定波幅之基準脈® (麵2)依鼷框速率使用交替费 化波幅之基準脈銜(圖3) Μ及依掃描嫌速率使用交替變 化波幅之基準脈衝(圖4)等方式.各有其相對優點。例 太沧i«ffl + V4規格(210x297公你) 218923 A 6 B6 五、發明説明(6) 如’交替變化波帼之基準脈衝霣路使資料脈衝必要波幅減 小’而依線率而非依圓框速率交替變化使顧示器上閃爍現 象大為減小。雖然圈5所示係為一種特殊霣路•亦即一種 其中之基準脈衝波幅係依圈框速率交替變化之《路,而恆 定或交替變化波幅之基準脈衝之其它裝置亦可應用於本發 明之間條《路上,而有相同之諸項相對優點。 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局员工消费合作社印製 太级穣尺疳ii用中a國玄燋谁(CNS) Ψ4規核(210x297公货)
Claims (1)
- 7 7 7 7 A B c D 經濟部中央搮準局印裝 L —種驅動一電阻性耦合電晶體類型有源矩陣定址液晶顯 不内液晶單兀之方法,包括有步驟: (a) 依序地定址液晶單元N - 1、N + :!、N + 3、. ·.列,當於 一第一圖埸週期内,施加電晶體導通脈衝至與該 N-l、H + l、N + 3、,·.列相躕之列位址線上,同時依 序地施加基準訊號至液晶單元N、N + 2、N + 4、...列 -相Μ之列位址線,供N-1列之電晶體.導通脈衝與供 Ν列之基準訊號係一致,ν為正整數; (b> 依序地定址液晶單元N、N + 2、N + 4、...列,當於一 第二圖場週期内’施加電晶體導通脈衝至該N、 N + 2、N + 4、...列相關之列位址線,同時依序地施 基準訊號至液晶單元N + l、N + 3、N + 5、...列相關之 列位址線,供H列之電晶體等通脈衝係與供列N + i之 基準訊號相一致; 似 擇一地重複該第一與第二週期;以及 (d) 於各別之擇—圖場週期中,擇一地將電晶體導通_ 衝與基準訊號施加至列位址線。 2 根據申請專利範圍第1項之方法,其中所有基準訊號皆 最值相同。 a 根據申請專利範圍第1項之方法,其中基準訊號有闸種 不同之量值,其量值係依其用Μ導出其驅動液晶單元之 資料脈衝之罨視訊號掃描線速率而交替變化。 根據申請專利範園第1項之方法’其中基準訊號具有兩 棰不同量值*其量值係依其用Μ導出驅動液晶單元之資 甲 4 (210X297 公廣) .....................................5 .............裝..............................訂..........、·................線 (請先閱讀背面之注意事項再填"本頁) 218923 A7 B7 C7 D7 六、申請專利範® 化 變 替 交 而 率 .tfy·- 速 框 圖 之 Blb 號 訊 視 電 之 衝 脈 料 (請先«讀背面之注意事項再填宵本頁) .裝· •訂· •綠. 經濟部中央搮準扃印裝 f 4(210X297 公廣)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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GB9023133A GB2249210B (en) | 1990-10-24 | 1990-10-24 | Liquid crystal displays |
Publications (1)
Publication Number | Publication Date |
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TW218923B true TW218923B (zh) | 1994-01-11 |
Family
ID=10684281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW080108334A TW218923B (zh) | 1990-10-24 | 1991-10-22 |
Country Status (6)
Country | Link |
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US (1) | US5241392A (zh) |
EP (1) | EP0482839A3 (zh) |
JP (1) | JPH04284493A (zh) |
KR (1) | KR920008524A (zh) |
GB (1) | GB2249210B (zh) |
TW (1) | TW218923B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5748164A (en) * | 1994-12-22 | 1998-05-05 | Displaytech, Inc. | Active matrix liquid crystal image generator |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4455576A (en) * | 1981-04-07 | 1984-06-19 | Seiko Instruments & Electronics Ltd. | Picture display device |
JPS59113420A (ja) * | 1982-12-21 | 1984-06-30 | Citizen Watch Co Ltd | マトリクス表示装置の駆動方法 |
JPH0652938B2 (ja) * | 1986-01-28 | 1994-07-06 | 株式会社精工舎 | 液晶表示装置 |
KR900004989B1 (en) * | 1986-09-11 | 1990-07-16 | Fujitsu Ltd | Active matrix type display and driving method |
DE3884442T2 (de) * | 1987-04-15 | 1994-02-17 | Sharp Kk | Flüssigkristallanzeigegerät. |
JP2555420B2 (ja) * | 1988-08-29 | 1996-11-20 | 株式会社日立製作所 | 液晶マトリックス・パネルの中間調表示駆動回路 |
JPH02157813A (ja) * | 1988-12-12 | 1990-06-18 | Sharp Corp | 液晶表示パネル |
-
1990
- 1990-10-24 GB GB9023133A patent/GB2249210B/en not_active Expired - Fee Related
-
1991
- 1991-10-18 JP JP3297611A patent/JPH04284493A/ja active Pending
- 1991-10-18 EP EP19910309641 patent/EP0482839A3/en not_active Ceased
- 1991-10-18 US US07/779,030 patent/US5241392A/en not_active Expired - Fee Related
- 1991-10-22 TW TW080108334A patent/TW218923B/zh active
- 1991-10-23 KR KR1019910018677A patent/KR920008524A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB2249210B (en) | 1994-07-27 |
US5241392A (en) | 1993-08-31 |
KR920008524A (ko) | 1992-05-28 |
EP0482839A2 (en) | 1992-04-29 |
JPH04284493A (ja) | 1992-10-09 |
EP0482839A3 (en) | 1993-01-07 |
GB9023133D0 (en) | 1990-12-05 |
GB2249210A (en) | 1992-04-29 |
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