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(一） 發明技術領域·· 本發明係有關於一種多級液晶顯示器充電之驅動電 路’特別是有關於能夠對液晶⑽晝素執行電荷分= (charge-sharing)以及預先充電(pre_charge)的動作者。 (二) 發明技術背景·· 爾來，由於光電技術之突飛猛進，以及半導體技術之 蓬勃發展，使得電腦顯示器之運用技術日新月異。其中尤 其是液晶顯示ϋαα))之使用，其有效解決傳觸示哭之大 ，的缺失，近來廣泛地被運用。所以，有關於^顯示 益（LCD) ’尤其是薄膜電晶體液晶顯示器咖⑽)之驅動 電路，乃為一重要之技術。 有關於傳統的薄膜電晶體液晶顯示器 方式，其中資料驅動器（data driver)隨著正負極性晝面切 換而改變其電壓輸出範圍，其缺點為消耗功率大。曾被提 出的改良方式有：⑴外加大電容進行充電分配(二卿 sharing);以及⑵將正負極性分由不同的資_動器 經濟部智慧財產局員工消費合作社印製 (data driver)驅動。這些改良方式，仍有輸出栓鎖住(0P latch up)及中間灰階不夠精確的問題亟待解決。 上述中，功率消耗以及灰階電壓的準確性，、乃是液晶顯 示器⑽)驅動· _大性能參考依據。如眾所周知，驅 動電路輸出的功率消耗與其糕變動範圍(vQltage swing) 的平方成正比。現今…般液日日日顯抑⑽)之垂直訊號的 驅動電路如A及圖-B所示’其中驅動電路必須跟隨 資料(DATA)訊號極性的交換而改變動態操作 雖然同 經濟部智慧財產局員工消費合作社印製 535133 發明説明（ 如^間只用到上半部或下半部的電壓翻，其電壓範圍即 必：η之所不’但是整個驅動電路之輸出級電壓操作範圍 j是單—極性時的兩倍。亦即輪出（output)端必須提供 ^大的電壓變動翻(讀嫩swing)，所以，功率消耗 也因而提升。 政降低驅動電路輸出的電壓變動範圍（voltage swing)是 。低功率消耗有效的方式之為達此目的，—些改良的 痛方式如圖二及圖四所示之專利技術曾被提出。其中 圖三A的驅動方式係在液晶顯示器⑽)顯示區外加一極大 之電容（如標示66之元件），該電容器66之電容值極大 ;LCD所有晝素電谷值之總和。當畫素的極性要反轉，資 料(data)寫人之前（即如圖三B時序圖的丨。〜七、以及^ 〜t3區間）’先將晝素與電容器⑽的通路打開，此時電荷 重新排列’因為外加電容器66的電容值極大，因此最後電 壓CST_會接近一般(comm〇n)的電屋值0V (即如圖三b所 示）’藉以降低輸出的電壓變動範圍(v〇ltage挪如）。 -此外’於圖四所不之中，係將正負極性的電壓分別由不 同的輸出端提供’例如正極性由上半部輸出端(㈣提供， 負極性由下半邊輸出端(0P—)提供。如此上下邊輸出的電壓 變動範圍（voltage swing)都比原始的方式（如圖 技術）少了一半。 然而，此種改良驅動方式尚未能解決兩大問題： (1)灰階電壓準顧的問題：理論上餘電容⑽充放電永 遠無法達到目標電壓值’在相同的充放電時間内，目標 ‘紙張尺度適用中國國豕標準（CNS ) A4規格（210>^297公釐） (請先閲讀背面之注意事項再填寫本頁}(1) Technical Field of the Invention: The present invention relates to a driving circuit for charging a multi-level liquid crystal display, and more particularly, it is capable of performing charge-sharing and pre-charge operations on liquid crystal cells. By. (II) Background of the invention · Here, due to the rapid advancement of optoelectronic technology and the vigorous development of semiconductor technology, the application technology of computer monitors is constantly changing. Among them, especially the use of liquid crystal displays (ϋαα)), which effectively solves the problem of the large and weak transmission of cries, has been widely used recently. Therefore, it is an important technology to display a driving circuit of an LCD (especially a thin film transistor liquid crystal display). Regarding the traditional thin-film transistor liquid crystal display method, a data driver changes its voltage output range with day-to-day polarity switching, which has the disadvantage of high power consumption. Improvement methods that have been proposed include: externally increasing capacitors for charging and sharing (Erqing sharing); and dividing the positive and negative polarities by different data drivers driven by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In these improved methods, the problems of 0P latch up and inaccurate intermediate gray levels still need to be solved. In the above, the accuracy of power consumption and gray-scale voltage is the reference for the large-capacity LCD driver. As is well known, the power consumption of the drive circuit output is directly proportional to the square of its vQltage swing. Nowadays, the vertical signal driving circuit is shown as A and Figure-B. 'The driving circuit must follow the exchange of data (DATA) signal polarity to change the dynamic operation. Although the same as the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee consumer cooperative 535133 Description of the invention (If only the upper half or the lower half of the voltage is used, the voltage range must be: η is not the same, but the output stage voltage operation range j of the entire drive circuit is single -Double the polarity. That is, the output must provide a large voltage swing (reading swing), so the power consumption is also increased. Reduce the voltage swing range of the output of the drive circuit. Yes. To achieve this goal, effective ways of low power consumption—some improved pain methods have been proposed as shown in Figures 2 and 4. The driving method of Figure 3A is in the LCD display area. In addition to a very large capacitance (such as the component labeled 66), the capacitance of the capacitor 66 is extremely large; the sum of all the daylight valleys of the LCD. When the pixel's polarity is to be reversed, before the data is written (that is, in the sequence diagram of Figure 3B). ~ 7, and ^ ~ t3 interval, the channel of the day pixel and the capacitor 先 is opened first, at this time Charge rearrangement 'Because the capacitance of the external capacitor 66 is extremely large, the final voltage CST_ will be close to the common house value 0V (ie, as shown in Figure 3b)' to reduce the output voltage fluctuation range (v 〇ltage moved as). -In addition, as shown in Figure 4, the positive and negative voltages are provided by different output terminals respectively. For example, the positive polarity is provided by the upper half output terminal (㈣), and the negative polarity is provided by the lower half output terminal (0P-). In this way, the voltage swing range of the upper and lower output voltages is half less than the original method (as shown in the figure). However, this improved driving method has not been able to solve two major problems: (1) gray-level voltage Problem: theoretically, the residual capacitance ⑽ can never reach the target voltage value during charge and discharge 'within the same charge and discharge time, the target' paper size applies to the Chinese National Standard (CNS) A4 specification (210 > ^ 297 mm) (please first Read the notes on the back and fill out this page}
535133535133
笔壓值越接近起始電壓值，則液晶（LC)最後所保持 (hold)住的電壓誤差越小。,然而圖—與圖三的驅動方 式，起始值和電屋目標值分屬不同極性，因此液晶細胞 凡(LC cell)最後保持(hold)住的電壓誤差不可忽視。 ⑵輸出的栓鎖（latch up)問題:於圖四中，上邊輸出端(〇p+) 在液晶細胞元(LC cell)開關打開時，會看到前一個圖 框（frame)的負極性電壓，導致輸出栓鎖（〇p丨扯比即） 之現象產生。 -疋以’為了改善上述兩個問題，本發明將提出一同時 含有電荷分配(charge sharing)及預先充電（卿—比轉） 的新式電路架構。 (三）發明之簡要說明： 經濟部智慧財產局員工消費合作社印製 本發明係提供-多級液晶顯示器充電之驅動電路，主 要係在下—筆資料寫入之前’利用電荷分配(chargesharing) 以及預 先充電 （pre_charge) 的動作 ，將液晶 （a) 晝素先行充至某固定電壓值。由於此電壓的極性與下一筆 資料相同’因此可以確實防止驅動魏之如被栓鎖住w latch up)。另一方面，又因為此電壓值的大小係設在中間 灰階附近，因此在相同的資料寫入時間内，中間灰階的^ 壓會比傳統方式更為精確。 私 是以，本發明之主要目的在於能夠提供—灰階較為精 確之液晶顯示器的驅動電路，以及提供1率消耗低之液 晶顯示器的驅動電路，能有效降低驅動電路輪出被栓鎖住 之情形發生。The closer the pen pressure value is to the initial voltage value, the smaller the voltage error that the liquid crystal (LC) holds at the end. However, the driving mode of Fig. 3 is different from that of Fig. 3 in that the starting value and the target value of the electric house belong to different polarities. Therefore, the voltage error of the LC cell can not be ignored. ⑵ Latch up problem of output: In Figure 4, when the upper output terminal (〇p +) is turned on, you will see the negative voltage of the previous frame. This results in output latch-up (opp ratio). -In order to improve the above two problems, the present invention will propose a new circuit architecture including both charge sharing and pre-charging. (3) Brief description of the invention: Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics The present invention provides a driving circuit for charging a multi-level liquid crystal display, which is mainly used to charge charge distribution (chargesharing) and advance The action of charging (pre_charge) first charges the liquid crystal (a) to a fixed voltage value. Since the polarity of this voltage is the same as that of the next data ’, it is possible to surely prevent the driving of Wei Zhiru (w latch up). On the other hand, because the magnitude of this voltage is set near the middle gray level, the voltage of the middle gray level will be more accurate than the traditional method in the same data writing time. In fact, the main purpose of the present invention is to provide a driving circuit for a liquid crystal display with a more accurate gray scale and a driving circuit for a liquid crystal display with a low rate of consumption, which can effectively reduce the situation where the driving circuit is locked out. occur.
A4規格（210X^97公釐） 本紙G度適财@ 535133 A7 ----—---- —____B7__ 五、發明説明（屮） '~^ 為了改善上述兩個問題，我們提出同時含有充電分配 (charge sharing)及預先充電（pre_charge)的新式電路架 構此名構包括有·⑴電荷分配(char阴sharing)及預 先充電（pre-charge)用之開關。（2)預先充電（pre—cha 、 電壓位準(M(+)與M(-)，M之輸出可為正或負）與電壓選擇 控制器（G〜G)。上述之元件可做在液晶（LC)晝素之顯示 域的外側。 π° 較佳者，本發明所提出之充電分配與預先充電的電路竿 構，係可再進-步配合輸出端連接一大電容值的電容器而 實施者，使輸出之電壓變動範圍更加減少。 (四）圖式之簡要說明： 圖- Α係為習用技術中使用垂直訊號的液晶顯示器驅 動電路不意圖。 圖-B係為制技術中電壓及灰階準位之曲線圖。 圖二係為習用技術中驅動電路輪出級之電壓變動範圍 變化圖。 經濟部智慧財產局員工消費合作社印製 圖二八係為習用技術美國專利第5,咖，概號專利案之 FIG· 2電路圖。 圖二B係為習用技術美國專利第5, _，侧虎專利案之 FIG· 5電路圖。 圖四係為習用技術美國專利第5,748，165號專利案之 正負極性電壓，由不同輪㈣所提供之電路示意 圖。 圖五A係為本發明第一實施例之電路架構示。 本紙張尺度適用中國國家標準（CNsTa4規格（210^97公釐''P------ 535133 A7 ---- B7 五、發明説明~ ' ^ 圖五Β係為本發明第一實施例中於電荷儲存線之一端 加入電容器之電路架構示意圖。 圖六係為本發明第二實施例之電路架構示意圖。 圖七係為本發明第三實施例之電路架構示意圖。 囡八係為依據圖六所示之第二實施例實際加入電壓值 操作之電荷分配(charge sharing)說明示意圖。 圖九係為依據圖六所示之第二實施例實際加入電壓值 操作之預先充電(pre-charge)說明示意圖。 圖十係為單條資料線上電壓波形之變化波形圖。 图十係為本發明一種控制時序（control timing) 圖。 圖十一係為傳統驅動方式之充電區域與本發明驅動方 式充電區域之灰階精確度比較示意圖。 圖號說明： 1〇晝素 20驅動電路 66電容器 100正極性多階電壓調整電路M 102負極性多階電壓調整電路M， 101正極性電壓準位Vm 103負極性電壓準位7化 110第一驅動電路])1 112第二驅動電路D2 114第三驅動電路D3 (請先閎讀背面之注意事項再填寫本頁) 訂 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（210¾297公釐） 3 3 發明説明（ 116第四驅動電路以 120液晶顯示區 131，數行第一充放電訊號線S1 132可偶數行第二充放電訊號線兕 133正極性預先充電訊號線S3 134偶數行第一充放電訊號線 I36負極性預先充電訊號線S3, U〇奇數行第一電荷開關Q1 141偶數行第一電荷開關Q15 偶數行第二電荷開關Q2 143奇數行第二電荷開關q2， 第一電荷儲存線!^ I52第二電荷儲存線L2 2〇〇習用技術灰階精確區域 300本發明灰階精確區域 (五）發明詳細說明·· 經濟部智慧財產局員工消費合作社印製 本發明係提供一多級液晶顯示器充電之驅動電路， 要之电路架構係設計為多階預先充電（pre-charge)與極 父替預先充電（pre-charge)。多階pre-charge係指利 Cl、&〜匕來選擇pre-charge的電壓（正極性為Vl 、V2 〜v 負極性為Vl’、V2’〜Vm’）。此說明煩請參閱圖五A之所开 其由某初始電壓（例如common vo 1 tage)分多次充電（chai 至適當的目標電壓值（例如正極性時為7.5V ;負極性與 2.5V)。另外，前述之極***替預先充電（e_charge: 本紙張又度適用中國國家標準（CNS ) A4規格（210)^297公釐） 535133 A7 五、發明說明（；；） 指：若是第-電荷儲存線L1 151在某一圖框充電（汁脈 charge)至正極性則下—圖框則充電听耻咖取）至負極 性。 、 、為了更進-步詳細綱本發崎提出之電路連接設置 方式’兹再以圖五A之所示詳述之。圖五A所示係為本發 明弟-實施例之電路架構示意圖，其中包括有：多階電壓 調整電路100、102，係連接於電壓源（正極性為^、vm， 負極性為Vl’、V2’〜v〇 ’經由選擇訊號之選擇， 可輸出不同之正負電位值；以及包括有複數個正負極性充 放電訊號線S卜SI，、S2、S3、S3,與電荷儲存線L1、L2， f中-組正負極性預先充電訊號線S3 ' S3，連接於該多階電 壓=，電路之輸出端’且該組正負極性預先充電訊號線 、S3之另-端連接有該兩電荷儲存線u 與釋放電荷。 傾存 另-組正負極性充放電訊號線s卜幻，盘 52 ’乃係與該兩電荷儲存線之間相互交錯而付設置Γ於 該^負極=充放電訊號線S1、S2、S1，與電荷儲存線L1、L2 經濟部智慧財產局員工消費合作社印製 =置個對偶之正1極性電荷開關Q1、Q2、 ::二=儲存線u、L2之電荷儲存與釋放， s '、偶之正負極性電荷開關執行電荷分配 (Charg=，如lng)及預先充電(pre-charge)之操作。 S卜st羊一二Ht其中所述之正負極性充放電訊號線為 S1，’ -正極性訊號線為S2，正負極性預先充電訊 53 S3，及兩電何儲存線為u、Lz，而各訊號線之間^互 Μ氏張尺度適用中國國家標準（CNS)^^^ 535133 A7 五、發明說明（f) 1¾弟電何储存線LI，再間隔奇偶 S2,T為第二電荷儲存線L2，再 =生如可吻闕、第二電顧麵U、Lk 〜該圖五A中包括有複數個驅動電路w、I 係父錯連接於1¾複數個正負極性電荷_ 係咖細社峨關閉狀態， 二 I 何〃配(charge-sharing)與預先充電（pre_ C arge)之操作。上述巾，該複數個對偶之正負極性電 關’係不同於液晶之複數個畫素之資料開關。對於盆中戶^ 述之電荷儲存線的製作方式，主要係製作為 屬 形式，以執行電容儲存之作用，減少輪出電壓變動之=之 - 二，其中正負極性充放電訊號線與第-、第 關的設置方式，係以奇數行第—電·_之閘 ==第一充放電訊號線S1，而該第一電荷心^ f源極知中，-端連接於驅動電路端D1、⑽，— 員 訂 線 ^電荷儲存線L1;以及偶數行第二電荷開關Q2的閑極端 係連接於奇偶數行第二充放電訊號線82，該偶數行第二— 荷開關Q2的沒源極端，其一端連接於第一 二 =另-端連接於鶴電路D2、D4 ± ;以及該奇數行第二 电持開關Q2’的間極端連接於奇偶數行第二充放電訊號線 —本纸張尺度國國家標準（ϋΑ4規格咖χ永公爱〉 535133 、發明說明（） S2，該奇數行箓— 她電荷開關收，的沒源極端，則 駆動电路m、D3端，另—端連接 1貝i-端連接於 及偶數行第1荷關qi，之端儲存線L2;以 放魏號線^該偶數行第一電===偶數行第—充 鈿連接於第二電#胃# ; 及源極端中， _4者。撕線L2’另—刺連接於驅動電路 另一方面’就不同實施態#而言 儲存線輸㈣，係_述之電荷 如圖五B所干去立電容器以儲存電荷者， ㈣立15所不者。意即該 仰 者，在於_五B之f施方衫柄柯於圖五a 電壓之變動式⑽了電容器66之連接使 本發明之_簡料單_先充f (购力 Γ5；1?5ν^^(ΡΓ6^ 5 § ^ 7. 5V或2. 5V)而不是制邊增或邊減電 的架構如圖六所示。此架構錢具有姉交替預 (pre-charge)的特性’藉著控制⑽、Q1，、收、敗，)的開啟 順序’可讓L·、L2在不同圖框(frame)永遠充電(charge)同 極性。 -此外本發明所述之電荷儲存線與該多階電壓調整電 路輸出端之正負極性充放電訊號線的連接，係可為執行極 性父替，或者疋以執行極性不交替者為主。此點煩請參閱 圖六以及圖七之所示，圖六係為本發明第二實施例之電路 架構示意圖；而圖七所示係為本發明第三實施例之電路架 構示意圖。 535133 A7 五、發明說明（（°) 該圖六之所示所不同於圖五者，在於將正負極性多階 電壓調整電路M100、M，102改為正極性電壓準位Vm1〇i 以及負極性電壓準位VM，103。圖七與圖五之不同處，也同 樣是電麼準位Μ 100、M，102與VM 1〇1、Vm，1〇3之表示方 式不同’如圖七之所示。其中，該圖六經由正極性預先充 電訊號、線S3 133、負極性預先充電訊號線S3, 136之可切 換選擇第-電荷儲存線L1 151與第二電荷儲存線L2 152， 所以可執行極***替。而圖七之所示，則是正極性預先充 電讀線S3 133紐連接帛-電舰麵u 151 ;負極性 預先充電訊號線S3, 136連接第二電荷儲存線L2 152，所 以極性不交替。 心有關於本發明所述電荷分配(charge-sharing)方式， 煩#參，圖八。圖八係為依據圖六所示之第二實施例實際 加入電麗值操作之充電分配（charge sharing)說明示意 圖。於執行電荷分配(charge sharing)時，該奇數行第一 包荷開關Q1所連接之驅動電路D1端會對第一電荷儲存線 L1充私，而偶數行第一電荷開關qi，所連接的驅動電路D2 亦會經由該偶數行第一電荷開關Q1，而對第二電荷儲存線 | L2充電’達成電荷分配之目的。 I 、另外’關於本發明所述之預先充電（pre-charge)之方 f j ’煩凊參閱圖九，圖九係為依據圖六所示之第二實施例 皇 貝卩不加入電壓值操作之預先充電（pre-charge)說明示意 f 图：田執行預先充電(pre-charge)時，該奇偶數行第一充 号 ㈣訊號、線SI、S1，為i閉(OFF)之狀態，奇偶數行第二充 製 本，氏張又度適用中(CNS)A4規格（210 X #7公釐） _ ' 535133 A7 B7 五、發明說明（（丨） 放電訊號線S2為開啟(0N)之狀態，以及正負極性預先充電 Λ號線S3 S3亦為開啟之狀態；其中負極性預先充電訊號 線S3’所連接之第二電荷儲存線L2所儲存之電荷會經由奇 數行第二電荷開關Q2,而充電至驅動電路D1 ;相對的，該第 一電荷儲存線L1上之正電壓會經由偶數行第二電荷開關Q2 充電至驅動電路D2上，達成預先充電之目的。 本發明之實驗結果煩請參閱圖十，圖十係為單條資料 線上電壓波形之變化波形圖。由圖十中可以得知充電分配 與預先充電之操作，在一單條資料線上電壓變換之位置所 在。其中Vcom是表示一般(common)電壓準位值。此外，圖 十一所示為本發明實施例之一種控制時序(control timing) 圖。其中狀態1表示為寫入之功能，各正負極充放電訊號A4 specification (210X ^ 97mm) G paper suitable for this paper @ 535133 A7 ----——---- —____ B7__ 5. Description of the invention (屮) '~ ^ In order to improve the above two problems, we propose to include charging at the same time New circuit architecture for charge sharing and pre-charge. This name structure includes switches for charge sharing and pre-charge. (2) Pre-charging (pre-cha, voltage level (M (+) and M (-), M output can be positive or negative)) and voltage selection controller (G ~ G). The above components can be used in The outside of the display field of liquid crystal (LC) day element. Π ° Preferably, the charging distribution and pre-charging circuit structure proposed by the present invention can be further matched with a capacitor with a large capacitance value at the output end. The implementer makes the output voltage variation range even smaller. (4) Brief description of the diagram: Figure-A is not intended for the liquid crystal display drive circuit using vertical signals in conventional technology. Figure -B is the voltage and The graph of the gray level. Figure 2 is the change of the voltage range of the drive circuit wheel output stage in conventional technology. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure 2 circuit diagram of the patent case. Figure 2B is the circuit diagram of FIG. 5 of the US patent No. 5, _, and side tiger patent case. Figure 4 is the patent case of US technology No. 5,748,165 for the conventional technology. The positive and negative polarity voltages are determined by different wheels. Schematic diagram of the circuit provided. Figure 5A shows the circuit architecture of the first embodiment of the present invention. The paper size is applicable to the Chinese national standard (CNsTa4 specification (210 ^ 97 mm``P ------ 535133 A7- -B7 V. Explanation of the invention ~ ^ Figure 5B is a schematic diagram of a circuit architecture in which a capacitor is added to one end of a charge storage line in the first embodiment of the present invention. Figure 6 is a schematic diagram of a circuit architecture in the second embodiment of the present invention. Fig. 7 is a schematic diagram of the circuit architecture of the third embodiment of the present invention. Fig. 8 is a schematic diagram of charge sharing operation according to the actual addition of a voltage value according to the second embodiment shown in Fig. 6. Fig. 9 is a diagram based on the diagram. The second embodiment shown in FIG. 6 is a schematic diagram of pre-charge operation for actually adding a voltage value. FIG. 10 is a waveform diagram of a voltage waveform on a single data line. FIG. 10 is a control timing of the present invention. Figure 11 is a schematic diagram of the comparison of the gray-scale accuracy between the charging area of the traditional driving method and the charging area of the driving method of the present invention. Figure number description: 1〇 日 素 20 drive circuit 66 capacitor 100 positive polarity multi-level voltage adjustment circuit M 102 negative polarity multi-level voltage adjustment circuit M, 101 positive polarity voltage level Vm 103 negative polarity voltage level 7 110 first drive circuit]) 1 112 second drive circuit D2 114 first Three driving circuit D3 (Please read the precautions on the back before filling this page) Order printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210¾297mm) 3 3 Description of the invention (116 The fourth drive circuit has 120 liquid crystal display areas 131, several lines of the first charge and discharge signal line S1 132, and even lines of the second charge and discharge signal line 兕 133 positive polarity precharge signal line S3 134 even line of the first charge and discharge signal line I36 Negative polarity pre-charge signal line S3, U0 The odd charge first charge switch Q1 141 The even charge first charge switch Q15 The even charge second charge switch Q2 143 the odd charge second charge switch q2, the first charge storage line! I52 The second charge storage line L2 2000 conventional technology gray-scale accurate area 300 The present invention gray-scale accurate area (five) Detailed description of the invention For a multi-stage liquid crystal display driving circuit of the charge, to the circuit structure-based design of multi-step precharge (pre-charge) and the pole for the parent precharge (pre-charge). Multi-level pre-charge refers to the choice of voltage for pre-charge by Cl, & ~ (the positive polarity is Vl, V2 ~ v, and the negative polarity is Vl ', V2' ~ Vm '). For this explanation, please refer to Figure 5A. It is charged by an initial voltage (such as common vo 1 tage) multiple times (chai to the appropriate target voltage value (for example, 7.5V for positive polarity; 2.5V for negative polarity). In addition, the aforementioned polarity is alternately pre-charged (e_charge: This paper is also applicable to the Chinese National Standard (CNS) A4 specification (210) ^ 297 mm) 535133 A7 V. Description of the invention (;;) means: if it is the-charge storage line L1 151 charges (positive pulse charge) to a positive polarity in a frame-the frame charges to negative polarity. In order to further-detail the detailed outline of the circuit connection setting method proposed by Fazaki ', it will be described in detail in Figure 5A. FIG. 5A is a schematic diagram of a circuit structure of an embodiment of the present invention, which includes: multi-level voltage adjustment circuits 100 and 102 connected to a voltage source (positive polarity is ^, vm, negative polarity is Vl ', V2 '~ v〇' can output different positive and negative potential values through the selection of the selection signal; and include a plurality of positive and negative polarity charge and discharge signal lines S1, S2, S2, S3, S3, and the charge storage lines L1, L2, f the middle-group of positive and negative polarity pre-charged signal lines S3 'S3, connected to the multi-level voltage =, the output terminal of the circuit', and the other positive-side of the group of positive-negative polarity pre-charged signal lines, S3 are connected with the two charge storage lines u And dumping the charge. Dumping another set of positive and negative polarity charge-discharge signal lines sb, disk 52 'is interlaced with the two charge storage lines and set Γ at the ^ negative electrode = charge-discharge signal lines S1, S2. , S1, printed with charge storage lines L1, L2 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs = set up a dual positive 1-polar charge switch Q1, Q2, :: 2 = charge storage and release of storage lines u, L2, s '、 Even positive and negative charge switches perform charge distribution (Ch arg =, such as lng) and pre-charge operation. Sb st sheep one or two Ht where the positive and negative polarity charge and discharge signal line is S1, '-positive polarity signal line is S2, positive and negative polarity pre-charge News 53 S3, and the two power and storage lines are u, Lz, and the ^ mutual M-square scale between the signal lines applies the Chinese National Standard (CNS) ^ ^ 535 133 A7 V. Description of the invention (f) The storage line LI is separated by the parity S2, and T is the second charge storage line L2, and then the second electric storage surface U, Lk is the same as the second electric storage surface. In FIG. 5A, a plurality of driving circuits w and I are included. The parent is connected to a plurality of positive and negative charges _ is the closed state of the coffee shop, two operations of charge-sharing and pre-charge (pre_C arge). The above towel, the multiple positive and negative polarities The electric switch is a data switch that is different from the pixels of the liquid crystal. For the production method of the charge storage line described in the household ^, it is mainly produced as a form to perform the function of capacitor storage and reduce the fluctuation of the output voltage. = Of-two, in which the positive and negative polarity charge and discharge signal lines and the-,-off settings In the odd-numbered line, the gate of the electric charge is equal to the first charge-discharge signal line S1, and the first charge core ^ f source is known, the-terminal is connected to the driving circuit terminals D1, ⑽,-the order line ^ The charge storage line L1; and the free terminal of the second charge switch Q2 in the even-numbered row are connected to the second charge-discharge signal line 82 in the even-numbered row. Two = the other end is connected to the crane circuit D2, D4 ±; and the extreme end of the second holding switch Q2 'of the odd line is connected to the second charging and discharging signal line of the even and odd line-the national standard of this paper (ϋΑ4 size coffee χ Yonggong Ai> 535133, description of the invention () S2, the odd line 箓-her charge switch closed, the passive extreme, then the circuit m, D3 terminal, the other end connected to the 1 i-terminal connected to the even line The first load line qi, the end storage line L2; the line of Wei Wei ^ the even line of the first line === the even line of the first-charge connected to the second line # wei #; and the source terminal, _4. The tear line L2 is another connection between the driver circuit and the driver circuit. As far as the different implementation states are concerned, the storage line input is shown in Figure 5.B. The charge is stored in a capacitor to store the charge. No. This means that the winner is the _5B f square shirt handle in Figure 5a. The voltage variation formula of the capacitor 66 is connected to the capacitor _ brief list _ first charge f (purchasing power Γ5; 1? 5ν ^^ (ΡΓ6 ^ 5 § ^ 7. 5V or 2.5V) is shown in Figure 6 instead of increasing or decreasing power. This structure has the characteristics of pre-charge. By controlling the opening sequence of ⑽, Q1, 收, 败, 败), L ·, L2 can always be charged with the same polarity in different frames. -In addition, the connection of the charge storage line according to the present invention with the positive and negative polarity charge / discharge signal lines at the output end of the multi-level voltage adjustment circuit may be performed by a polar parent, or by performing a non-alternating polarity. Please refer to FIG. 6 and FIG. 7 for this point. FIG. 6 is a schematic diagram of the circuit architecture of the second embodiment of the present invention; and FIG. 7 is a schematic diagram of the circuit architecture of the third embodiment of the present invention. 535133 A7 V. Description of the invention ((°) The difference between the figure shown in Figure 6 and Figure 5 is that the positive and negative polarity multi-level voltage adjustment circuits M100, M, 102 are changed to the positive polarity voltage level Vm1〇i and negative polarity. The voltage level VM, 103. The difference between Figure 7 and Figure 5 is also the same as the electrical level M 100, M, 102 and VM 101, Vm, 103 'as shown in Figure 7 Among them, in FIG. 6, the first charge storage line L1 151 and the second charge storage line L2 152 can be selected by switching between the positive polarity precharge signal, line S3 133 and negative polarity precharge signal line S3, 136, so it can be executed. The polarity is alternated. As shown in Figure 7, the positive polarity pre-charge reading line S3 133 is connected to the 帛 -electric ship surface u 151; the negative polarity pre-charge signal line S3, 136 is connected to the second charge storage line L2 152, so the polarity is not Alternate. Regarding the charge-sharing method of the present invention, it is annoying, see Figure 8. Figure 8 is the charge distribution according to the second embodiment shown in Figure 6. illustration of sharing. Charge shading is performed. ring), the driving circuit D1 connected to the first charge switch Q1 in the odd row will charge the first charge storage line L1, and the driving circuit D2 connected to the first charge switch qi in the even row will also pass through the The first charge switch Q1 is even-numbered, and the second charge storage line | L2 is charged to achieve the purpose of charge distribution. I. In addition, the pre-charge method fj described in the present invention is troublesome. Nine, Fig. 9 is a schematic illustration of pre-charge according to the second embodiment shown in Fig. 6 when Huang Beihuan does not add a voltage value. F Figure: When Tian performs pre-charge, the parity The first charge of several lines, the signal, lines SI, S1, are in the state of i (OFF), the second copy of the even and odd lines, and the paper is also applicable (CNS) A4 specification (210 X # 7 mm) _ '535133 A7 B7 V. Description of the invention ((丨) The discharge signal line S2 is on (0N), and the positive and negative polarity pre-charge Λ line S3 S3 is also on; the negative polarity pre-charge signal line S3' The charge stored in the connected second charge storage line L2 passes through an odd number. The second charge switch Q2 is charged to the driving circuit D1; in contrast, the positive voltage on the first charge storage line L1 is charged to the driving circuit D2 through the even-numbered second charge switch Q2 to achieve the purpose of precharging. Please refer to Figure 10 for the experimental results of the invention. Figure 10 is a waveform diagram of the voltage waveform changes on a single data line. From Figure 10, you can know the operation of charge distribution and pre-charging, and the location of voltage conversion on a single data line. Where Vcom is a common voltage level value. In addition, FIG. 11 is a control timing diagram according to an embodiment of the present invention. The state 1 indicates the function of writing, and the positive and negative electrodes are charged and discharged.
線之開關狀態為 SI OFF、SI，OFF ' S2 OFF、S3 OFF、S3, OFF 等。狀態2則表示為電荷分配(charge—sharing)之情形， 即為電荷重排之功能者；各正負極充放電訊號線之開關狀 態為 SI ON、Sr ON、S2 OFF、S3 OFF、S3, OFF 等。而狀 悲3之所示係為多級預先充電(唧出―stage pre—charge) 之功能’各正負極充放電訊號線之開關狀態為SI OFF、SI， OFF、S2 ON、S3 ON、S3, ON 等。 再將本發明所產生之灰階效果與習用傳統技術作比 較’則煩睛參閱圖十二，該圖十二之所示係為傳統驅動方 式之充電區域與本發明驅動方式充電區域之灰階精確度比 較示意圖。橫座標為電壓v，縱座標為灰階強度τ。其中標 示為200之灰階區域，係為傳統驅動法之電壓充電較準確 本紙張尺度適时關家標準（CNS)A4規格（210 X淤公餐） -------·----q --- (請先閱讀*f面之注意事項寫本頁) . -線· 經濟部智慧財產局員工消費合作社印製 535133The switch status of the line is SI OFF, SI, OFF 'S2 OFF, S3 OFF, S3, OFF, etc. State 2 indicates the situation of charge-sharing, that is, the function of charge rearrangement; the switching states of the positive and negative charge and discharge signal lines are SI ON, Sr ON, S2 OFF, S3 OFF, S3, OFF Wait. The state of sadness 3 is a multi-stage pre-charge function. The switching states of the positive and negative charge and discharge signal lines are SI OFF, SI, OFF, S2 ON, S3 ON, S3. , ON, etc. Then compare the gray-scale effect produced by the present invention with the conventional conventional technology. ”Annoyingly refer to FIG. 12, which shows the gray-scale of the charging area of the traditional driving method and the charging area of the driving method of the present invention. Illustration of accuracy comparison. The abscissa is the voltage v, and the ordinate is the grayscale intensity τ. Among them, the gray scale area marked as 200 is more accurate for the traditional driving method. The paper size is timely and standard (CNS) A4 specification (210 X silly meal) ------- · --- -q --- (Please read the notes on * f first and write this page). -Line · Printed by the Employee Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 535133
五、發明說明（I >) 之區域，其涵蓋之灰階較少；標示為300之灰階區域，則 為本發明驅動方法電壓充電較準確之區域，由圖式可知本 發明之灰階區域涵蓋大部分之灰階，其灰階精準度較高。 綜上所述，本發明之一多級液晶顯示器充電之驅動電 路，能夠提供有準確之灰階度，以及減少功率消耗；充份 顯示出本發明之目的及功效上均深富實施之進步性，極具 產業之利用彳貝值，且為目前市面上前所未見之新發明，完 全符合發明專利之要件，爰依法提出申請。 唯以上所述者，僅為本發明之較佳實施例而已，當不 能以之限定本發明所實施之範圍。即大凡依本發明申請專 =範，所作之均等變化與修飾，皆應仍屬於本發明專利涵 盍之範圍内，謹請貴審查委員明鑑，並祈惠准，是所至 禱0 (請先閱讀臂面之注意事項^€^寫本頁) 經濟部智慧財產局員工消費合作社印製 適 k又 尺 張 紙 本 X 10 2 /ίν 格 規 Α4 S) Ν (C 準 標 家 公5. The area of the description of the invention (I >) covers less gray levels; the gray level area marked 300 is the area where the voltage charging of the driving method of the present invention is more accurate. The gray level of the present invention can be seen from the diagram The area covers most of the grayscale, and its grayscale accuracy is higher. In summary, a driving circuit for charging a multi-level liquid crystal display of the present invention can provide accurate gray levels and reduce power consumption; it fully shows the progress and implementation of the present invention in terms of both its purpose and efficacy. It has a high industrial utilization value and is a new invention not seen in the market at present. It fully meets the requirements of an invention patent, and it is submitted in accordance with the law. The above are only the preferred embodiments of the present invention, and it should not be used to limit the scope of implementation of the present invention. That is to say, all the equal changes and modifications made in accordance with the present invention should still fall within the scope of the patent of the present invention. I would like to ask your reviewing committee to make a clear reference and pray for the best. 0 (please first Precautions for reading the arm surface ^ € ^ Write this page) The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints a suitable paper X 10 2 / ί 格 规 Α4 S) Ν (C