TW201108196A - Touch screen liquid crystal display device - Google Patents

Touch screen liquid crystal display device Download PDF

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Publication number
TW201108196A
TW201108196A TW099126939A TW99126939A TW201108196A TW 201108196 A TW201108196 A TW 201108196A TW 099126939 A TW099126939 A TW 099126939A TW 99126939 A TW99126939 A TW 99126939A TW 201108196 A TW201108196 A TW 201108196A
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Taiwan
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data
liquid crystal
line
display device
crystal display
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TW099126939A
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English (en)
Inventor
Ji-Hun Kim
Woong-Jin Oh
An-Young Kim
Joon-Ho Na
Dae-Seong Kim
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Silicon Works Co Ltd
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Publication of TW201108196A publication Critical patent/TW201108196A/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • 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
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Description

201108196 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種觸控式螢幕液晶顯示裝置，尤其涉及一種通過使用具 有共用資料像素線和讀取像素線的結構的液晶模組而在像素内儲存資料並 讀取觸摸資訊的觸控式螢幕液晶顯示裝置。 【先前技術】 隨著圖形化使用者介面（下文稱作“gut )系統的最近發展和普及， 具有簡單輸入介面的觸控式螢幕液晶顯示裝置已經廣泛使用。觸控式9榮幕 φ 液晶顯示裝置為取代鍵盤和滑鼠的輸入裝置，如果使用者用手指直接觸摸 安裝在液晶顯示面板上的觸控板’就可以執行所需操作。 觸控式螢幕液晶顯示裝置允許使用者在GUI環境如視窗作業系統中 完成商務運作，其可以廣泛地用於辦公自動化領域、戲應用領域、務 裝置領域等。 $ 這種觸控式螢幕液晶顯示裝置分類為電阻型、電容型、紅外線型'聲 波型、電磁型等。現今，已經積極地開展對於提供有具觸控面板功能的液 晶顯不面板的集成型電容觸控式螢幕液錢示裝置的研 控式螢幕液晶顯示裝置的厚度。 叫低r觸
模組的、《5依·。
1至&、複數個用於[s! 3 201108196 ，資料信號的資料像素線Vdataj至Vdata_3、以及用於讀取
=取像素線iw。可以轉的是，細象素線¥ ] 二Z 素線RREAD!分離。 _ __3與讀取像 如圖】所示，在傳統的電容觸摸液晶顯示裝置的液晶模 於資料像魏觸轉錄分離，娜㈣魏SMC的魏中^ 於所有的通道都-樣，從而輸出波形也—樣 ^的^ 就會降低，而且需要大尺寸的液晶面板。 象素的孔錢 【發明内容】 因此’本發明已經為了解決先前技射的問題做出努力， 本發明的另一目的是提供一種通過在具丘 素線的結構的液晶模組中補償共麟中發 遲減柯 的輸出波形變化的觸控式螢幕液晶顯示裝置。31而減^ ^科線和共用線 2制塊；以及液晶·，其通過射料像素連接㈣料像 素帽存貧料，以響應自諸驅動塊中提供的資料㈣，、、’’ ’ 素連接i讀取像素線讀取資料，其#細_過制線與細_接 晶顯ΛΪ得i述目^’輯本個的—财面，提供—_控式螢幕液 缺:^ 面板驅動電路，包含難驅動塊、資料驅動塊、和信 號，並通過與讀取像 根縣發明的糖錢幕液晶‘顯稍置， 、、< 而且 丑田&，絲本判_控辦雜自顯轉置，增加提供，於驅動 巧的置電流或者增加與共轉的輸歧觸連接的多 °從而_共用線内發生的延遲，最終減少輸出波形的變化。 【實施方式】 在參考實_及所關示詳細本發明的具體實施例。 201108196 根據本發明的觸控式螢幕液晶顯示裝置包括面板驅動電路和液晶模 組。該面板_電路包括__塊、諸鶴塊、和錢控概。由於 閘極驅動塊和$麵概具有如先祕射雜驅動塊和雜控制塊相同 的結構，除了資料驅動塊之外，因此其詳細說明將省略。 圖2為電路圖’說明根據本發明中觸控式登幕液晶顯示裝置晶模 組的結構。 、 如圖2所示，根據本發财的電容觸控式螢幕液晶顯示裝置的液晶模 組200包括複數個形成在基板上以傳送閘極信號的問極線^至&、複數個 用於傳送貝料k號的資料像素線Vdataj至v驗3、以及用於讀取儲存的資
訊的讀取像錄R_。可㈣解岐讀祕魏R_和資料像素線 VDATA3 共用。 通過使用具有上述共用資料像素線和讀取像素線的結構的液晶模 組，可以增加三原色(RGB)資料像素的孔徑比。 、 π圖/A$電路圖，說明本發明中觸控式螢幕液晶顯示裝置的液晶模組 °動鬼的、·’。構’並且圖3B為說明本發明中觸摸液晶顯示裝置的資料 像素線和共用線的時序的圖式。 if M所示’根據本發明的觸控式螢幕液晶顯示裝置的資料驅動塊 括輪^衝器單元310、多工器單元320、和連接塾單元330。 眘彻單輸出用於驅動液晶模組的資料信號，並包括 次*作二ί衝!! 311和共用線輸出緩衝器312。資料線輸出緩衝器311將 ^至二^ 35f貪料像素'線340並且共用線輸出緩衝器312將資料信號輸 所、s 早疋320選擇輸出緩衝器單元310的輸出信號的其中之一並將 丘用1送至液晶模組2〇〇。多工器單元320包括資料線多工器321和 ^ + ^ π AA器322。資料線多工器321選擇並傳送資料線輸出緩衝器311的 « 之一，並且共用線多工器322選擇並傳送共用線輸出緩衝 器312的輸出信號的其中之一。 Π 6^·=也’多工器單元320進一步包括傳送器323，其與資料線多工器 321的，出端*共用線多工器322的輸出端連接。 圖3Β所不’當資料傳送時，資料像素線340上載入高壓而共用線 201108196 350上載入低壓。然而，在傳送下一資料前，形成傳送器323的連接，從而 資料像素線340和共用線350的電荷共用，最終減少電流消耗。 連接墊單元330包括連接至液晶模組2〇〇的資料像素線34〇的資料線 連接墊331和連接至共用線350的共用線連接墊332。 如圖3A所示，在共用資料像素線和讀取像素線的結構中，由於在共 用線350中額外地增加寄生電容Cp和寄生電阻，不同於資料像素線34〇， 與寅料像素線340相比所述共用線350發生延遲現象。
因此，如果當驅動資料像素線34〇和共用線35〇的時候使用相同的輸 出緩衝器，發生輸出波形變化，從而導致影像的差異。在這方&，需要提 供能夠補償共用線350中延遲發生的技術。 根據本發明的觸控式螢幕液晶顯示裝置的資料驅動塊3⑻進一步包括 ，置電流供應部313 ’其與制線輸出緩衝器312連接，以增加偏置電流， 取終減少輸出波形變化1外，偏置電流供應部313的偏置電流可以通過 偏置電流控制部（圖中未示）產生的㈣信號調節。 同時/根據本發明的觸控式登幕液晶顯示裝置的資料驅動塊3〇〇，共 ，線夕工器322的尺寸大於資料線多工器321的尺寸，也就是，進一步減 >、了電阻，從而可以減少輸出延遲的變化。 儘管本發_最佳實施例已經作為示例目的描述，熟悉本領域的技術 ^員可以明白在不脫離本發明範圍和精神的前提下，巾請專利範圍所要保 遵的内容，可輯本發明作出各種修改，添加和替換。 【圖式簡單說明】 1為電路圖，說明根觀前技術中電容馳式勞幕液晶顯示裝置的 液晶模組的結構； 組的結^為電路圖’說明根據本發财觸控式螢幕液晶顯示裝置的液晶模 模知去圖/i為電路圖，說雜據本發明中觸控式螢幕液晶顯示裝置的液晶 俟組和貧料驅動塊的結構；以及 線的時^ 為^^本發财觸控式螢幕液晶顯示裝置的資料像素線和共用 201108196
【主要元件符號說明】 100 液晶彳吴組 200 液晶模組 300 資料驅動塊 310 輸出緩衝器單元 311 資料線輸出緩衝器 312 共用線輸出緩衝器 313 偏置電流供應部 320 多工器單元 321 資料線多工器 322 共用線多工器 323 傳送器 330 連接墊單元 331 資料線連接墊 332 共用線連接墊 340 資料像素線 350 共用線

Claims (1)

  1. 201108196 七、申請專利範圍： 1- 一種觸控式螢幕液晶顯示裝置，包括： 制塊驅動電路’包含—’驅動塊、—f料驅祕、和一信號控 备’其通過與資料像素連接的—資料像素線在該等資料像 讀*你1資料，以響應自該資料驅動塊中提供的'資料信號，並通過與 讀取像素連接的一讀取像素線讀取資料， 其中，該讀取像素通過一共用線連接至該等資料像素。 範圍第1項所述的觸控式螢幕液晶顯示裝置，其中，該資 出緩衝單元，其輸出用於驅動該液晶模組的—資料信號； 單元’其選擇該輸出緩衝11單元的輸.韻其中之一並 將所選的信號傳送至該液晶模組；以及 3 ‘由連^塾早70 ’連接至該液晶模級的該資料像素線和該共用線。 出緩衝2項舰賴控絲幕__置，其中，該輸 二輸出緩衝器，其將該資料信號輸出至該資料像素線；以及 4 “1、用線輸出緩衝器’其將該資料信號輸出至該共用線。 一申請專利範圍第3項所述_控式螢幕液晶顯示裝置，進 供應部’其將—偏置電流施加至該共⑽輸出緩衝器。 -偏置申ίίΓ範圍第4項所述的觸控式螢幕液晶顯示袭置，進-步包括 置電抓控制部，其產生控制該偏置電流的一信號。 工ί單申3項所述簡控式螢幕液Μ示裝置，其中，該多 其中工器，其選擇並傳送該資料線輸出緩衝器的輪出信號的 其中之二H工|5，其選擇麟送該共麟輸出緩衝器的輸出信號的 7用f第6項所频馳錢幕μ齡裝置，Μ，^ Γΐι有比職料❹w的電容更大的電容。 .申凊專利範圍第6項所述的觸控式螢幕液晶_裝置，其中，該多工 201108196 器單元進一步包括一傳送器，其與該資料線多工器的一輸出端和該共用線 多工器的一輸出端連接。
TW099126939A 2009-08-19 2010-08-12 Touch screen liquid crystal display device TW201108196A (en)

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KR20110019187A (ko) 2011-02-25
KR101077031B1 (ko) 2011-10-26

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