200912492 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種可消除色差現象的液晶顯示面板及 色差消除方法’尤指一種於液晶基板之非點燈區設置共通 電極並施予一常態電壓’令液晶基板之非點燈區與點燈區 無色差現象者。 【先前技術】 請麥考第四圖所示’於一液晶基板（4 〇 )之兩側係 ( 分设有一掃描單元（41)及一信號單元（42)，兩單 元係由一顆或多顆驅動〗c所構成。該掃描單元（4 1 ) 水平連接有複數條掃描電極線（c〇m) ( 4 1 〇 )，該掃描 電極線（4 1 〇 )設置於液晶基板（4 〇 )上層（或下層）， 而信號單元（4 2 )則是垂直延伸有複數條信號電極線（Seg) (42 0)，該信號電極線（42〇)則是位於液晶基板 (4 0 )下層（或上層）並與掃描電極線（4丄〇 )呈交叉 狀排列。 液晶顯示器之顯示原理即利用控制前述掃描電極線 ^ 4 1 0 )與信號電極線（4 2 〇 )兩者交集區域合成電 壓差，以決定該區域液晶分子之排列而改變其光透過率， 進而形成該晝素之㈣、灰階或色彩差異之顯示。再藉由 控制晝素矩陣上各點之。n/〇ff，以實踐不同文字、圖开;或 圖式（Icon)之顯示。 請參考第五至七圖所示，無論是圖案型或文字型的液 晶面板，事實上整個液晶顯示器螢幕可分為點燈區（或稱 5 200912492 為晝素區、圖案區）（51)及非點燈區（52)，非點 燈區例如VA區，此區域同樣具有液晶分子。畫素區中的 各個晝素會視需求而個別施加一選擇訊號以開啟“㈣ on)該晝素，&是施加—非選擇訊號以關閉（_ 〇⑴該 晝素。在點㈣（51)當中，其上下電極交叉之區域的 最低電壓差為畫素關閉時（〇ff)的電壓，但對於無上下電 極交叉之非點燈區（5 2)而言，其最低電壓卻是零電壓 (zero)，關閉電壓與零電壓仍是存有些微的電壓差值。 因此，即使整體液晶面板無施加選擇信號而為關閉狀 s下，別述點燈區（5 1 )及非點燈區（5 2 )兩者因為 上述必然之電壓差值而使得兩區的液晶分子其光透過率仍 有差異，透過率差異約5〜10%，故出現不同類型之“底色浮 現之色差問題’以肉眼觀看會具有明暗度不同的現象，而 此問題始終是被動式液晶顯示器的共通缺點。 【發明内容】 有鑑於被動式液晶顯示面板其點燈區與非點燈區兩者 縱使在最低電壓下仍存有些微的電壓差距，而造成兩區域 出現色差問題，本發明即針對該問題提供一解決手段。 本發明之主要目的即提供一種可消除色差現象的液晶 顯不面板，於面板對晝素或顯示圖案無施加選擇信號的情 況下，其點燈區與非點燈區具有一致的呈現狀態，而無色 差現象。 為達成丽述目的，該液晶顯示面板主要包含： 一形成有形成非點燈區及點燈區之液晶基板，於該液 200912492 晶面板之上、下層係分別形成掃描電極線及信號電極線； 一掃描單元’係連接前述掃描電極線； 一信號單元，係連接前述信號電極線； 共通電極，係形成於液晶面板之上、下層且對應該液 晶面板之非點燈區，前述共通電極連接掃描單元或信號單 元以獲得一常態電壓。 該常態電磨肖提供予點㈣之非選擇錢之電廢相 等，因此，即使在點燈區的各畫素均為關閉的情況，非點 燈區的光透過率會與點燈區的光透過率完全一致而消除色 差現象 本發明之另一目的即供一種液晶顯示面板的色差消除 方法’該方法之步驟包含：對應一液晶基板之非點燈區設 置有共通電極；連接該共通電極至液晶基板之一掃描單元 或一信號單元；施加一常態電壓至共通電極。 【實施方式】 請參閱第一圖所示，為本發明第一實施例之示意圖， 於一液晶基板（i 0 )上係規劃有一點燈區（又稱AA區） (1 1 )及一非點燈區（又稱VA區）（i 2 )。在液晶面 板（1 0 )上、下層係分別設置複數條掃描電極線（2 1 〇)及複數條信號電極線（ 2 2 0 )，兩者係呈現交叉排 列。 該掃描電極線（2 1 〇 )的位置對應於點燈區（1 i )， 且掃描電極線（2 i 〇 )係連接至一掃描單元（2丄）。 200912492 信號電極、線（2 2 0 )的位置同對應於點燈區（工工）且 連接至-信號單元（2 2 )。本發明於對應非點燈區㈠ 2 )設置共通電極細Y IT0)(丄3 )，該共通電極（丄 3)可連接前述掃描單元（21)或信號單元（22)， 本實施例則是連接該信號單元（2 2 )的其中 (Sl)，該接腳可為一閒置信號的接腳。 由於共通電極（1 3 )可透過該接腳接收該信號單元 2 2 )職供的—常態電壓，該常態電壓與提供予點燈 品（1 1 )之非選擇仏號（of f signal)的電壓相等，因此， 即使在點燈區（1 1 )㈣畫素均為關閉的情況，非點燈 區（1 3 )的紐過率會與點㈣（i i )的光透過率完 全一致而消除色差現象。 前述共通電極（！3)@實際形成方式 夕卜：業，由於前述掃描電極線（2丄〇 )與信號電極線（2 :〇)導電線路是分別形成於液晶純（丄〇)之上、下 %:層、’ ’電極層原先是全面佈滿透明導電膜(ITO)，而 以更光濕蝕刻製程製作形成導電線路，所以修正製程光罩 而保留所需的透明導雷 導電膜便可構成共通電極（1 3 )，在 衣成本上不會有任何額外的增加。 請參考第二圖所示， A 本毛月第一實施例係一形成有複 數個顯示圖牵f q η、1 μ 案（3 0 )或圖式（则）的液晶基板（！ 〇 )， 任顯示圖$ f q η、 ^ ）以外的區域為非點燈區（1 2 )而佈 口又有共通電極（1 _ α 丄3 )。各顯不圖案（3 0 )對應連接一 挪描電極線卩9 1 η、 、 1 0 )及一信號電極線（2 2 0 )，該共 200912492 通電極（1 3 )則連接掃描單元（2工）或信號單元（2 2 )可，、接到顯不圖案（3 〇 )的控制接腳，如C2〜C4 或S2〜S4,或者是共接到掃描單元（2丄）或信號單元（2 2)的外側F,1置信號接腳（C1^S1)。自於在非點燈區（χ 2 )的’、通電極（1 3 )仍是接收有一常態電s，故與顯 不圖案（3 〇 )區域的最低關閉電壓相等，因此兩區域能 顯示一致的亮度，無色差問題。 睛參考第三圖所示，本發明亦可適用於m_stn驅動架 構之Area/Multi Color模組，一方面可在共通電極（工 3 )施加一常態電壓而克服底色浮現的色差問題，另一方 面更可將導通訊號（turn on)施加在共通電極（丄3 ) ’ 使得VA區顯示彩色晝面，進而以程式控制便可實踐μ區 同樣具有Area/Multi Color選擇。 綜上所述，本發明之特徵及優點包括有下列各項： 1、 本發明可適用於 M-STN/TN 及 Area/Multi Color-STN/TN。 2、 本發明係維持現有驅動丨c及硬體介面架構，解決 因為非選擇訊號區域與無訊號區域存在一電壓差，而導致 兩區域透過率有5〜10%差異問題之完整解決方案。 3本發明應用在非點燈區域設置共通電極後，並將 共通電極連接至液晶面板驅動IC之一 Ic〇n控制接腳或一 閒置訊號接腳，藉此提供一常態固定之關閉信號（f ) 予非點燈區域，可完全解決點燈區在施加關閉信號時與非 k區元王無外加電壓時存在的壓差，令非點燈區能常態 200912492 保持與點燈區施加關閉訊號時一致之透過率，完全消除點 燈區底色浮現之問題。 4、 本發明可擴展適用於文字型液晶面板之行列間距 區及Icon型液晶面板之圖案區，其作法同樣在非點燈區 域设置共通電極，而消除色差問題。 5、 本項技術之進階功能可應用於Area/MuHi c〇1〇卜 STN/TN，除可消除點燈區底色浮現之問題外，且具備徹底 改善點燈區與非點燈區透過率差異之漏光問題；另外可提 八通笔極；通彳s號，如此能以程式控制實踐非點燈區 同樣具有Area/Multi Color選擇。 6、 系統端（客戶側）只須在現行之8〇51平台上以簡單 矛式編寫即可使用，不需變更任何硬體介面及程式編譯 平台。 【圖式簡單說明】 第圖.係本發明可消除色差現象的液晶面板第一實 施例之示意圖。 第二圖：係本發明可消除色差現象的液晶面板第二實 施例之示意圖。 弟三圖：係本發明可消除色差現象的液晶面板第三實 施例之示意圖。 第四圖·係習用液晶面板之驅動方式示意圖。 第五圖.係一習用液晶面板之點燈區域與非點燈區域 之分佈示意圖。 200912492 第六圖：係另一習用液晶面板之點燈區域與非點燈區 域之分佈示意圖。 第七圖：係另一習用液晶面板之點燈區域與非點燈區 域之分佈示意圖。 【主要元件符號說明】 (1 〇)液晶基板 (1 1 )點燈區 （1 2 )非點燈區 (2 1 )掃描單元 (2 2 )信號單元 (3 0 )顯示圖案 (4 〇 )液晶基板 (4 1 )掃描單元 (4 2 )信號單元 (5 1 )點燈區 (2 1 0 )掃描電極線 (2 2 0 )信號電極線 (4 1 0 )掃描電極線 (4 2 0 )信號電極線 (5 2 )非點燈區 11200912492 IX. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display panel and a chromatic aberration eliminating method capable of eliminating chromatic aberration phenomenon, in particular, a common electrode is disposed in a non-lighting region of a liquid crystal substrate and a normal state is applied. The voltage 'has no color difference between the non-lighting area of the liquid crystal substrate and the lighting area. [Prior Art] Please refer to the fourth picture on the top of a liquid crystal substrate (4 〇) (with a scanning unit (41) and a signal unit (42). The two units are one or more. The scanning unit (4 1 ) is horizontally connected with a plurality of scanning electrode lines (c〇m) (4 1 〇), and the scanning electrode lines (4 1 〇) are disposed on the upper layer of the liquid crystal substrate (4 〇) (or the lower layer), and the signal unit (4 2 ) is vertically extending with a plurality of signal electrode lines (Seg) (42 0), and the signal electrode lines (42 〇) are located under the liquid crystal substrate (40) (or The upper layer is arranged in a crosswise manner with the scanning electrode lines (4丄〇). The display principle of the liquid crystal display is to control the voltage difference between the scanning electrode line ^4 1 0 ) and the signal electrode line (4 2 〇). In order to determine the arrangement of the liquid crystal molecules in the region, the light transmittance is changed, thereby forming a display of the (four), gray scale or color difference of the halogen. Then by controlling the points on the matrix of the pixel. n / 〇 ff, to practice different text, map open; or the display of the icon (Icon). Please refer to the fifth to seventh figures. Regardless of the pattern or text type LCD panel, the entire LCD screen can be divided into lighting areas (or 5 200912492 for the pixel area, pattern area) (51) and The non-lighting zone (52), the non-lighting zone, such as the VA zone, also has liquid crystal molecules. Each element in the pixel area will individually apply a selection signal to turn on "(4) on) the element, & apply - non-selection signal to turn off (_ 〇(1) the element. At point (4) (51 Among them, the lowest voltage difference between the upper and lower electrodes is the voltage when the pixel is off (〇ff), but for the non-lighting area (5 2) where there is no upper and lower electrodes crossing, the lowest voltage is zero voltage. (zero), there is still a slight voltage difference between the off voltage and the zero voltage. Therefore, even if the entire liquid crystal panel is not applied with a selection signal, it is turned off, and the lighting area (5 1 ) and the non-lighting area are not mentioned. (5 2 ) Because of the above-mentioned inevitable voltage difference, the liquid crystal molecules of the two regions still have different light transmittance, and the transmittance difference is about 5 to 10%, so different types of "color difference problems of the underlying color appear" Viewing with the naked eye will have different brightness and darkness, and this problem is always a common disadvantage of passive liquid crystal displays. [Invention] In view of the passive liquid crystal display panel, both the lighting area and the non-lighting area are still at the lowest voltage. Save a little The present invention solves the problem of chromatic aberration in the two regions, and the present invention provides a solution to the problem. The main object of the present invention is to provide a liquid crystal display panel capable of eliminating chromatic aberration, without applying a panel to a pixel or a display pattern. In the case of selecting a signal, the lighting area and the non-lighting area have the same appearance state without chromatic aberration. For the purpose of achieving the purpose of the description, the liquid crystal display panel mainly comprises: a non-lighting area formed and a lighting a liquid crystal substrate of the region, wherein the scan electrode line and the signal electrode line are respectively formed on the lower layer of the 200912492 crystal panel; a scanning unit 'connects the scan electrode line; a signal unit connects the signal electrode line; the common electrode Formed on the liquid crystal panel and on the lower layer and corresponding to the non-lighting area of the liquid crystal panel, the common electrode is connected to the scanning unit or the signal unit to obtain a normal voltage. The normal electric shaving provides the non-selection money of the point (4) The electric waste is equal, so even if the pixels in the lighting area are off, the light transmittance of the non-lighting area will be The light transmittance of the lighting area is completely uniform to eliminate the chromatic aberration phenomenon. Another object of the present invention is to provide a chromatic aberration eliminating method for a liquid crystal display panel. The method comprises the steps of: providing a common electrode corresponding to a non-lighting area of a liquid crystal substrate; Connecting the common electrode to one of the scanning unit or the signal unit of the liquid crystal substrate; applying a normal voltage to the common electrode. [Embodiment] Referring to the first figure, a schematic diagram of a first embodiment of the present invention is shown in a liquid crystal substrate. (i 0) The upper plan has a light zone (also known as AA zone) (1 1 ) and a non-lighting zone (also known as VA zone) (i 2 ). The upper and lower layers of the liquid crystal panel (10) are respectively A plurality of scanning electrode lines (2 1 〇) and a plurality of signal electrode lines (2 2 0 ) are arranged, and the two are arranged in a cross arrangement. The position of the scanning electrode lines (2 1 〇) corresponds to the lighting area (1 i ) And the scan electrode line (2 i 〇) is connected to a scan unit (2 丄). 200912492 The position of the signal electrode and line (2 2 0 ) corresponds to the lighting area (worker) and is connected to the - signal unit (2 2 ). The present invention provides a common electrode thin Y IT0)(丄3 ) in the corresponding non-lighting area (1) 2), and the common electrode (丄3) can be connected to the scanning unit (21) or the signal unit (22), which is Connect (S1) of the signal unit (2 2 ), the pin can be a pin of an idle signal. Since the common electrode (13) can receive the normal voltage of the signal unit 2 2 through the pin, the normal voltage and the non-selection signal (of f signal) provided to the lighting product (1 1 ) The voltages are equal, so even if the pixels in the lighting zone (1 1 ) and (4) are off, the luminous flux of the non-lighting zone (1 3 ) will be completely the same as the light transmittance of the point (4) (ii). Chromatic aberration. The common electrode (!3)@ actual formation method: since the scanning electrode line (2丄〇) and the signal electrode line (2:〇) conductive lines are respectively formed on the liquid crystal pure (丄〇), The lower %: layer, ''electrode layer is originally fully covered with transparent conductive film (ITO), and the conductive line is formed by a more wet etching process, so the process mask can be corrected to retain the required transparent lightning conductive film. The common electrode (13) is formed without any additional increase in the cost of the garment. Referring to the second figure, the first embodiment of the present invention is a liquid crystal substrate (! 形成) in which a plurality of display patterns are formed, fq η, 1 μ (30) or pattern (?). The area other than the display map f fq η, ^ ) is the non-lighting area (1 2 ) and the cloth outlet has a common electrode (1 _ α 丄 3 ). Each of the display patterns (30) is connected to a dummy electrode line 卩9 1 η, , 1 0 ) and a signal electrode line (2 2 0 ), and the common 200912492 through electrode (1 3 ) is connected to the scanning unit (2) A signal unit (2 2 ) can be connected to a control pin of a display pattern (3 〇), such as C2 to C4 or S2 to S4, or to a scanning unit (2丄) or a signal unit ( 2 2) The outer side F, 1 sets the signal pin (C1^S1). Since the through electrode (1 3 ) in the non-lighting area (χ 2 ) still receives a normal electric s, it is equal to the lowest closing voltage of the visible pattern (3 〇) area, so the two areas can display the same Brightness, no color difference problem. Referring to the third figure, the present invention is also applicable to the Area/Multi Color module of the m_stn driving structure. On the one hand, a normal voltage can be applied to the common electrode (Work 3) to overcome the chromatic aberration problem of the underlying color, and the other In the aspect, the turn-on signal can be applied to the common electrode (丄3)' so that the VA area displays the color surface, and the program can be controlled to implement the μ area, which also has the Area/Multi Color option. In summary, the features and advantages of the present invention include the following: 1. The present invention is applicable to M-STN/TN and Area/Multi Color-STN/TN. 2. The present invention maintains the existing driver 及c and hardware interface architecture, and solves the complete solution of the problem that the transmittance of the two regions is 5-10% due to a voltage difference between the non-selected signal region and the non-signal region. 3 The present invention applies a common electrode in a non-lighting area, and connects the common electrode to one of the liquid crystal panel driving ICs Ic〇n control pin or an idle signal pin, thereby providing a normally fixed off signal (f The non-lighting area can completely solve the pressure difference existing when the lighting signal is applied to the non-k area king when the closing signal is applied, so that the non-lighting area can be normally turned on and the closing signal is applied to the lighting area. Consistent transmission rate completely eliminates the problem of the background color of the lighting area. 4. The invention can be extended to apply to the inter-column spacing area of the character type liquid crystal panel and the pattern area of the Icon type liquid crystal panel, and the method also provides a common electrode in the non-lighting area to eliminate the chromatic aberration problem. 5. The advanced function of this technology can be applied to Area/MuHi c〇1〇卜STN/TN, in addition to eliminating the problem of the background color of the lighting area, and thoroughly improving the lighting area and non-lighting area. The light leakage problem of the difference in rate; in addition, the eight-pass pen can be mentioned; the 彳 s number can be used to control the practice of the non-lighting area with the Area/Multi Color option. 6. The system side (client side) can be used only in the current 8〇51 platform with a simple spear, without changing any hardware interface and program compiling platform. BRIEF DESCRIPTION OF THE DRAWINGS Fig. is a schematic view showing a first embodiment of a liquid crystal panel which can eliminate chromatic aberration in the present invention. Fig. 2 is a schematic view showing a second embodiment of the liquid crystal panel which can eliminate the chromatic aberration phenomenon of the present invention. The third figure is a schematic view of the third embodiment of the liquid crystal panel which can eliminate the chromatic aberration phenomenon of the present invention. The fourth figure is a schematic diagram of the driving mode of the conventional liquid crystal panel. Fig. 5 is a schematic view showing the distribution of the lighting area and the non-lighting area of a conventional liquid crystal panel. 200912492 Fig. 6 is a schematic diagram showing the distribution of the lighting area and the non-lighting area of another conventional liquid crystal panel. Figure 7 is a schematic diagram showing the distribution of the lighting area and the non-lighting area of another conventional liquid crystal panel. [Main component symbol description] (1 〇) LCD substrate (1 1 ) lighting area (1 2 ) non-lighting area (2 1 ) scanning unit (2 2 ) signal unit (3 0 ) display pattern (4 〇) liquid crystal Substrate (4 1 ) scanning unit (4 2 ) signal unit (5 1 ) lighting area (2 1 0 ) scanning electrode line (2 2 0 ) signal electrode line (4 1 0 ) scanning electrode line (4 2 0 ) signal Electrode wire (5 2 ) non-lighting zone 11