200925724 八一 w —…610 24134twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種液晶顯示面板以及平面顯示面 板之色差的補償方法，且特別是有關於一種雙層超扭轉向 列型液晶顯示面板以及平面顯示面板之色差的補償方法。 【先前技術】 近來，為了提升超扭轉向列型液晶顯示器之顯示效 ❹ 果’已發展出雙層超扭轉向列型液晶顯示器(Double Super200925724 八一w —...610 24134twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display panel and a method for compensating for chromatic aberration of a flat display panel, and in particular to a double A method for compensating for chromatic aberration of a layer super twisted nematic liquid crystal display panel and a flat display panel. [Prior Art] Recently, in order to enhance the display effect of the super twisted nematic liquid crystal display, a double-layer super twisted nematic liquid crystal display has been developed (Double Super
Twisted Nematic-Liquid Crystal Display，DSTN-LCD)。圖 1 為習知之一種雙層超扭轉向列型液晶顯示面板。請參考圖 1 ’雙層超扭轉向列型液晶顯示面板100具有可視區P1以 及可視區P1以内的顯示區P2。同時，雙層超扭轉向列型 液晶顯示面板100包括一主動液晶單元110以及與主動液 晶單元110接合在一起的補償液晶單元130。主動液晶單 元Π0包括第一基板112、第二基板114、位於第一基板 112與第二基板114之間的主動液晶層116、位於第一基板 ® Π2與主動液晶層116之間的第一主動電極層118以及位 於第一基板Π4與主動液晶層116之間的第二主動電極層 120。第一主動電極層118與第二主動電極層ι2〇位於顯示 區P2内。此外，補償液晶單元130包括第三基板132、第 四基板134、位於第三基板132與第四基板134之間的補 償液晶層136。 補償液晶層136中的液晶分子與主動液晶層116中的 液晶分子的排列具有相同之扭轉角度，例如是18〇。至 6 200925724 -----„i!〇 24134twf.doc/n 270。，以使主動液晶單元11〇與補償液晶單元13〇可提供 相同的相位差值。另外，補償液晶層136中的液晶分子之 扭轉方向與主動液晶層116中的液晶分子之扭轉方向相 反，例如是一者為右旋方式扭轉而另一者為左旋方式扭 轉。因此，補償液晶層136所提供的光學特性可以補償雙 層超扭轉向列型液晶顯示面板1〇〇的顯示效果。舉例來 說，補償液晶層136的配置有助於提高雙層超扭轉向列型 ❹ 液日日顯不面板100的顯示對比0 然而，主動液晶單元110進行晝面顯示時，位於顯示 區^2内的部分主動液晶層116受到第一主動電極ιΐ8與 第二主動電極120間的電場作用後，會具有與補償液晶^ 136不同之相位差值。若在暗態電場之下，顯示區？2與顯 不區P2外圍之部分可視區ρι所顯示的亮度將會不同，而 成顯不不均勻的問題。 ^為了改善顯示不均勻問題，可使主動液晶層 116在無 t場下之相位差值大於補償液晶層136，或是使補償液晶' 層136的液晶分子具有較高的預傾角。此時，在暗態電場 下，顯示區P2的主動液晶層116與補償液晶層136~可具 有相同的相位差值。然而，顯示區P2外圍之部分可視區 P1中，主動液晶層116與補償液晶層136卻有不同的相位 差值，因而顯示區P2與部份可視區P1間仍有亮度不均 勻’也就是色差的問題。 儿& 【發明内容】 本發明提供-種雙層超扭轉向列型液晶顯示面板，以 7 200925724 S10 24134twf.doc/n 向列型液晶顯示面板在顯示暗態晝 Vi 與顯示區的間顯示不均勻的問題。 -,種千面員不面板之色差的補償方 ίί 轉向列型液晶顯示面板的顯示效果。 ❹ 本發明提出一種雙層超扭轉向列型液晶顯示面板，具 可視區以及位於可視區内之顯示區。此雙層超扭轉向 列3L液晶^示©板包括絲液晶單元以及補償液晶單元。 主動液晶單元包括第—主動電極層、第二主動電極層以及 主動液晶層’其中主紐晶層位於第—主㈣極層與第二 主動電極狀間且第—絲電極層與第二主動電極層位於 ’、'、頁示區内補償液晶單元與主動液晶單元疊置，且補償液 晶單兀包括第一補償電極層、第二補償電極層以及位於第 一，償電極層與第二補償電極層之間之補償液晶層。第一 補侦電極層與弟一補償電極層位於顯示區内，其十在顯示 區内’施加於補償液晶層之暗態電場隨著施加於主動液晶 層之暗態電場變化。 在本發明之一實施例中，上述之雙層超扭轉向列型液 晶顯示面板更包括電性連接第一主動電極層與第二主動電 極層之主動控制電路。其中，主動控制電路例如更電性連 接第一補償電極層與第二補償電極層。實際上，主動控制 電路例如藉由軟性電路板電性連接第一補償電極層以及 一補償電極層。 晶 在本發明之一實施例中，上述之雙層超扭轉向列型液 顯示面板更包括補償控制電路，其電性連接第—補償電 8 510 24134twf.doc/n 200925724 極層與第二補償電極層。 ❹ ❹ 在本發明之一實施例中，上述之主動液晶單元更包括 第一基板以及共用基板，主動液晶層位於第一基板以及共 用基板之間’而第一主動電極層配置於第一基板與主動液 晶層之間’且第二主動電極層配置於共用基板與主動液晶 層之間。另外’補償液晶單元更包括第二基板，補償液晶 層位於共用基板以及第二基板之間，而第一補償電極層配 置於共用基板與補償液晶層之間，且第二補償電極層配置 於第·一基板與補償液晶層之間。 在本發明之一實施例中，上述之主動液晶單元更包括 第一基板以及第一接合基板，主動液晶層位於第一基板以 及第一接合基板之間，而第一主動電極層配置於第一基板 與主動液晶層之間，且第二主動電極層配置於第一接合基 板與主動液晶層之間。此時，補償液晶單元更包括第二基 板以及第二接合基板’婦液晶層位於第二基板以及第二 接合基板ϋ第二補償電極層配 ^ 液晶層之間，且第-補償電極層配置於第=== 償液晶層m合基板例如域第接。基板接人補 暄办认笙一社产♦上 及弟一配向膜’第一配向 、(於弟補㈣極層與補償液晶層之間， 位於第二猶電極層與補償液晶層 :-二、 方向舉例而言是相丄至：。 在本發明之—私财，上叙_衫層所提供之 9 200925724 ------------510 24134twf.doc/n 相位差從400nm至1200nm。 在本發明之一實施例中，上述之主動液晶層所提供之 相位差從400nm至1200nm。 在本發明之一實施例中’上述之雙層超扭轉向列型液 曰曰顯不面板更包括弟二配向膜以及第四配向膜，第配向 膜位於第一主動電極層與主動液晶層之間，而第四配向膜 位於第二主動電極層與主動液晶層之間。其中，第三配向 珍膜與弟四配向膜之配向方向例如相交18〇。至27〇。。 在本發明之一實施例中，上述之主動液晶層與補償液 晶層之液晶分子以不同的扭轉方向排列。 本發明另提出一種平面顯示面板之色差的補償方 法，適於應用於如上所述之雙層超扭轉向列型液晶顯示面 板。此補償方法包括當雙層超扭轉向列型液晶顯示面板進 行暗態晝面顯示時，使補償液晶層具有第一電場。 在本發明之一實施例中，上述之平面顯示面板之色差 的補償方法更包括使主動液晶層具有第二電場。其中，第 —電場與第二電場可以相同，或是不同。 本發明之雙層超扭轉向列型液晶顯示面板中，位於 顯示區中的補償液晶層之暗態電場隨著施加於主動液晶層 之暗態電場變化。因此’當雙層超扭轉向列型液晶顯示面 板進行暗態顯示時，可使對應同一區域内的補償液晶層與 主動液晶層提供相同的相位差值，以達到顯示畫面的均勻 性。換言之，本發明之雙層超扭轉向列型液晶顯示面板非 但具有較高的顯示對比，同時也具有良好的顯示品質。 200925724 -610 24134twf.doc/n 為讓本發明之上述和其他目的、特徵和優點能更明顯 ^下文特舉較佳實施例’並配合所附圖式，作詳細說 明如下。 【實施方式】 一 S知之雙層超扭轉向列型液晶顯示面板雖具有高顯 不對，’但在進行暗態晝面的顯示時，卻因主動液晶層在 顯不區與顯不區之外的部份可視區的相位差不 一致而呈現 ❹ ㈣的⑨度°因此’雙層超扭轉向列魏晶顯示面板顯示 暗態晝面時，使用者會看到不均勻的晝面，而無法滿足使 用者對顯不品質的要求。本發明遂針對此項問題，提出以 下之雙層超扭轉向列型液晶顯示面板以及補償平面顯示面 板色差問題的方法。值得一提的是，以下各種雙層超扭轉 向列型液晶顯示面板以及平面顯示面板色差的補償方法僅 用以舉例說明，並非用以限定本發明之範圍。 【第一實施例】 ❷圖2繪示為本發明之第一實施例之雙層超扭轉向列型 液晶顯示面板之示意圖。請參照圖2，雙層超扭轉向列型 液晶顯示面板200具有一可視區P1以及位於可視區P1内 之顯示區P2。雙層超扭轉向列型液晶顯示面板2〇〇包括主 動液晶單元220以及補償液晶單元24〇。 主動液晶單元220包括第一主動電極層222、第二主 動電極層224以及主動液晶層226。主動液晶層226位於 第一主動電極層222與第二主動電極層224之間且第一主 動電極層222與第二主動電極層224位於顯示區P2内。 11 200925724 510 24134twf.doc/n 補償液晶單元240與主動液晶單元220疊置，且補償液晶 單元240包括第一補償電極層242、第二補償電極層244 以及位於第一補償電極層242與第二補償電極層244之間 之補償液晶層246。第一補償電極層242與第二補償電極 層244位於顯示區P2内，其中在顯示區P2内，施加於補 償液晶層246之暗態電場隨著施加於主動液晶層226之暗 態電場變化。 ❹ 具體來說’主動液晶單元220更包括第一基板228以 及第一接合基板230，其中主動液晶層226例如是位於第 一基板228以及第一接合基板230之間。此時，第一主動 電極層222配置於第一基板228與主動液晶層226之間， 而第二主動電極層224配置於第一接合基板230與主動液 晶層226之間。另外’補償液晶單元24〇更包括第二基板 248以及第二接合基板250’其中補償液晶層246位於第二 基板248以及第二接合基板250之間。此外，第二補償電 ©極層244配置於第二基板25〇與主動液晶層246之間，而 第一補償電極層242配置於第二接合基板248與補償液晶 層246之間。另外’在本實施例中，第一接合基板23〇例 如疋與苐一接合基板248接合。一般來說，雙層超扭轉向 列型液晶顯示面板200的上、下表面上可以分別貼附有上 偏振片272與下偏振片274。 雙層超扭轉向列型液晶顯示面板200更包括第一配向 膜282以及第二配向膜284。第一配向膜282位於第一補 償電極層242與補償液晶層246之間，而第二配向膜284 12 200925724 ------------510 24134twf.doc/n 位於第二補償電極層244與補償液晶層246之間。舉例而 言，第一配向膜282與第二配向膜284之配向方向是相交 180°至270°。另外，雙層超扭轉向列型液晶顯示面板200 更包括第三配向膜292以及第四配向膜294，第三配向膜 292位於第一主動電極層222與主動液晶層226之間，而 第四配向膜294位於第二主動電極層224與主動液晶層 226之間。其中，第三配向膜292與第四配向膜294之配 向方向也例如相交180°至270°。 主動液晶層226與補償液晶層246例如具有相同的厚 度，且第一配向膜282與第二配向膜284之配向方向的交 角例如等於第三配向膜292與第四配向膜294之配向方向 的交角。因此，主動液晶層226與補償液晶層246之液晶 分子所提供之相位差大致相同，其例如是從400nm至 1200nm。為了使雙層超扭轉向列型液晶顯示面板200具有 更高對比的顯示品質，第一配向膜282、第二配向膜284、 第三配向膜292以及第四配向膜294例如提供不同的配向 方向，以使主動液晶層226與補償液晶層246之液晶分子 以不同的扭轉方向排列。 詳細而言，補償液晶層246中的液晶分子之扭轉方向 與主動液晶層226中的液晶分子之扭轉方向例如是一者為 右旋方式扭轉而另一者為左旋方式扭轉。亦即，主動液晶 層226之液晶分子例如是以左旋方式排列，而補償液晶層 246之液晶分子例如以右旋方式排列。或是，主動液晶層 226之液晶分子例如具有右旋的排列方式，而補償液晶層 13 200925724 246之液晶分子例如以左旋方式排列。此時補償液晶層 246所提供的相位差可以對主動液晶層226所產生的顯示 晝面進行補償，以使雙層超扭轉向列型液晶顯示面板2〇〇 纟有高_的顯示品質。當雙歧扭轉向列型液晶顯示面 板200未進行顯示時，主動液晶層226與補償液晶層2牝 的排列方式可以提供互補的光學特性而避免漏光現象，以 進一步提高顯示對比。 ❹ 在本實施例中，顯示區Ρ2例如是由第一主動電極層 222與第二主動電極層224所在的區域而定義的。由於， 雙層超扭轉向列型液晶顯示面板200是藉由第一主動電極 層222與第二主動電極層224《間的電壓差以驅動主動液 曰曰層226中的液晶分子而顯不晝面的。因此’顯示區ρ2 可說是由第一主動電極層222與第二主動電極層224定義 出來的£域。本實施例中，第一主動電極層222盘第二主 動電極層224例如是個別由多個條狀的電極所組成，且第 一主動電極層222之條狀電極的排列方向盥第一主勤雷 〇 I似之條狀電極之排列方向相互垂直/、第動電極 此外，雙層超扭轉向列型液晶顯示面板2〇〇更包括主 動控制電路260，其電性連接第一主動電極層222與第二 主動電極層224。主動控制電路26〇例如可以將訊號電壓 輸入至第一主動電極層222與第二主動電極層224，以藉 由第一主動電極層222與第二主動電極層224間的電壓差 驅動主動液晶層226。如此一來，雙層超扭轉向列型液晶 顯示面板200可以進行畫面的顯示。 14 200925724 -----------610 24134twf.doc/n a可是，當雙層超扭轉向列型液晶顯示面板200進行暗 態晝面的顯不時，第一主動電極層222與第二主動電極層 224一間具有之電壓差。如此，顯示區p2所呈現的亮度會與 !貞不HP2周圍之部分可視區ρι所呈現的亮度不一致。因 此：本發明提出-種補償方法’使第一補償電極層242與 第-補償電極層244間具有電壓差，以使雙層超扭轉向列 型液晶顯示面板200顯示均勻的暗態晝面。具體來說，使 〇 第補仏電極層242與第二補償電極層244間具有電壓差 的了ΐ，例如疋使主動控制電路260藉由軟性電路板262 或疋藉由其他連接方式電性連接第一補償電極層242與第 一補償電極層244。 虽雙層超扭轉向列型液晶顯示面板2〇〇進行暗態晝面 的顯不時，主動控制電路26〇所輸出的訊號電壓例如可以 傳輸至第-主動電極層222與第二主動電極層224，也可 傳輸至第—補償電極層242以及第二補償電極層244。此 2 ’補償液晶層246中例如具有-第-電場，而主動液晶 曰226中具有一第二電場。當補償液晶| 纟到第一電 場作用時，補償液晶層246之液晶分子會產生特定角度的 偏轉’而主動液晶層226中的液晶分子也會隨第二電場而 偏轉。在本實施例中，第一電場等於第二電場，所以補償 液β曰層246在顯不區Ρ2中可以提供與主動液晶層226相 同的相位差值。當然，在其他實施例中，第一電場也可以 f立由其他電路蝴而不需等於第二電場，且第—電場與 第二電場間的關係可以隨著不同的設計概念而做不同的^ 15 200925724 ------- '610 24134twf.doc/n 在此情形之下，無論是顯示區P2或是顯示區p2周圍 之部分可視區P1中，補償液晶層246之液晶分子具有的 光學特性皆可有效地補償主動液晶層226之液晶分子的光 學特性。補償液晶單元240在顯示區p2或是顯示區p2周 圍之部分可視區P1中可提供不同的相位差值，以使雙層 超扭轉向列型液晶顯示面板200顯示的暗態晝面均勻一 致。也就是說，雙層超扭轉向列型液晶顯示面板2〇〇可以 具有良好的顯示品質，特別是在顯示暗態晝面時。Twisted Nematic-Liquid Crystal Display, DSTN-LCD). FIG. 1 is a conventional double-layer super twisted nematic liquid crystal display panel. Referring to Fig. 1, the double-layer super twisted nematic liquid crystal display panel 100 has a visible area P1 and a display area P2 within the visible area P1. Meanwhile, the double-layer super twisted nematic liquid crystal display panel 100 includes an active liquid crystal cell 110 and a compensation liquid crystal cell 130 bonded to the active liquid crystal cell 110. The active liquid crystal cell Π0 includes a first substrate 112, a second substrate 114, an active liquid crystal layer 116 between the first substrate 112 and the second substrate 114, and a first active between the first substrate Π2 and the active liquid crystal layer 116. The electrode layer 118 and the second active electrode layer 120 between the first substrate Π4 and the active liquid crystal layer 116. The first active electrode layer 118 and the second active electrode layer ι2 are located in the display region P2. Further, the compensation liquid crystal cell 130 includes a third substrate 132, a fourth substrate 134, and a compensation liquid crystal layer 136 between the third substrate 132 and the fourth substrate 134. The alignment of the liquid crystal molecules in the compensation liquid crystal layer 136 and the liquid crystal molecules in the active liquid crystal layer 116 have the same twist angle, for example, 18 Å. To 6 200925724 -----„i!〇24134twf.doc/n 270., so that the active liquid crystal cell 11〇 and the compensation liquid crystal cell 13〇 can provide the same phase difference value. In addition, the liquid crystal in the liquid crystal layer 136 is compensated. The twist direction of the molecules is opposite to the twist direction of the liquid crystal molecules in the active liquid crystal layer 116, for example, one is twisted in a right-handed manner and the other is twisted in a left-handed manner. Therefore, the optical characteristics provided by the compensation liquid crystal layer 136 can compensate for the double The display effect of the layer super-twisted nematic liquid crystal display panel 1 。. For example, the configuration of the compensation liquid crystal layer 136 contributes to the improvement of the display contrast of the double-layer super-twisted nematic sputum solar panel 100. When the active liquid crystal cell 110 performs the facet display, a portion of the active liquid crystal layer 116 located in the display area ^2 is subjected to an electric field between the first active electrode ι 8 and the second active electrode 120, and has a different function from the compensation liquid crystal 136. The phase difference value. If it is under the dark electric field, the brightness of the display area 2 and the visible part of the visible area P2 will be different, which is not uneven. The problem of unevenness is shown, the phase difference of the active liquid crystal layer 116 in the absence of the t field is greater than that of the compensation liquid crystal layer 136, or the liquid crystal molecules of the compensation liquid crystal layer 136 have a higher pretilt angle. Under the electric field, the active liquid crystal layer 116 of the display region P2 and the compensation liquid crystal layer 136 may have the same phase difference. However, in the partial visible region P1 of the periphery of the display region P2, the active liquid crystal layer 116 and the compensation liquid crystal layer 136 are different. The phase difference value, and thus the brightness unevenness between the display area P2 and the partial visible area P1, that is, the color difference. [Invention] The present invention provides a double-layer super twisted nematic liquid crystal display panel. , 7 200925724 S10 24134twf.doc/n The nematic liquid crystal display panel shows unevenness between the display dark state 昼Vi and the display area. -, the compensation of the chromatic aberration of the panel of the thousand-faced person. ίί Steering column type The display effect of the liquid crystal display panel. The present invention provides a double-layer super twisted nematic liquid crystal display panel having a visible area and a display area located in the visible area. The double-layer super twisted nematic 3L liquid crystal display panel includes a liquid crystal cell and a compensation liquid crystal cell. The active liquid crystal cell includes a first active electrode layer, a second active electrode layer, and an active liquid crystal layer, wherein the main crystal layer is located between the first main (four) electrode layer and the second active electrode and the first wire The electrode layer and the second active electrode layer are located in the ',', the display area, and the compensation liquid crystal unit is overlapped with the active liquid crystal unit, and the compensation liquid crystal unit includes the first compensation electrode layer and the second compensation electrode layer and is located at the first a compensation liquid crystal layer between the electrode layer and the second compensation electrode layer. The first compensation electrode layer and the second compensation electrode layer are located in the display area, and the ten-in-display region is applied to the dark state electric field of the compensation liquid crystal layer. The dark electric field applied to the active liquid crystal layer changes. In an embodiment of the invention, the double-layer super twisted nematic liquid crystal display panel further includes an active control circuit electrically connected to the first active electrode layer and the second active electrode layer. The active control circuit is electrically connected to the first compensation electrode layer and the second compensation electrode layer, for example. In practice, the active control circuit electrically connects the first compensation electrode layer and the compensation electrode layer, for example, by a flexible circuit board. In one embodiment of the present invention, the double-layer super twisted nematic liquid display panel further includes a compensation control circuit electrically connected to the first compensation circuit 8 510 24134twf.doc/n 200925724 pole layer and second compensation Electrode layer. In an embodiment of the invention, the active liquid crystal cell further includes a first substrate and a common substrate, the active liquid crystal layer is located between the first substrate and the common substrate, and the first active electrode layer is disposed on the first substrate and The active liquid crystal layer is disposed between the common substrate and the active liquid crystal layer. In addition, the compensation liquid crystal cell further includes a second substrate, the compensation liquid crystal layer is located between the common substrate and the second substrate, and the first compensation electrode layer is disposed between the common substrate and the compensation liquid crystal layer, and the second compensation electrode layer is disposed at the second substrate. A substrate between the substrate and the compensation liquid crystal layer. In an embodiment of the present invention, the active liquid crystal cell further includes a first substrate and a first bonding substrate, the active liquid crystal layer is located between the first substrate and the first bonding substrate, and the first active electrode layer is disposed at the first The substrate and the active liquid crystal layer are disposed between the first bonding substrate and the active liquid crystal layer. In this case, the compensation liquid crystal unit further includes a second substrate and a second bonding substrate, wherein the liquid crystal layer is located between the second substrate and the second bonding substrate and the second compensation electrode layer, and the first compensation electrode layer is disposed on the second liquid crystal layer. The first === compensates for the liquid crystal layer m-substrate, for example, the domain is connected. The substrate is connected to the person to make up the 笙 社 社 ♦ 及 弟 弟 弟 弟 配 配 配 配 配 ' ' ' ' ' 第一 第一 配 配 配 配 配 配 配 配 ' ' ' ' 配 ' 配 ' ' ' ' ' ' ' ' ' ' For example, the direction is relative to: In the present invention - private wealth, the above-mentioned _ _ layer provided by 9 200925724 ------------ 510 24134twf.doc / n phase difference from 400 nm to 1200 nm. In one embodiment of the invention, the active liquid crystal layer provides a phase difference of from 400 nm to 1200 nm. In one embodiment of the invention, the above-mentioned double-layer super-twisted nematic liquid 曰曰The non-panel further comprises a second alignment film and a fourth alignment film, the first alignment film is located between the first active electrode layer and the active liquid crystal layer, and the fourth alignment film is located between the second active electrode layer and the active liquid crystal layer. The alignment direction of the third alignment film and the four alignment film is, for example, intersected 18 〇 to 27 〇. In one embodiment of the invention, the active liquid crystal layer and the liquid crystal molecules of the compensation liquid crystal layer are arranged in different twist directions. The invention further provides a compensation for chromatic aberration of a flat display panel The method is suitable for the double-layer super twisted nematic liquid crystal display panel as described above. The compensation method comprises: when the double-layer super twisted nematic liquid crystal display panel is displayed in a dark state, the compensation liquid crystal layer has the first In an embodiment of the invention, the method for compensating for chromatic aberration of the flat display panel further comprises: causing the active liquid crystal layer to have a second electric field, wherein the first electric field and the second electric field may be the same or different. In the double-layer super-twisted nematic liquid crystal display panel of the invention, the dark electric field of the compensation liquid crystal layer located in the display region changes with the dark electric field applied to the active liquid crystal layer. Therefore, when the double-layer super twisted nematic liquid crystal When the display panel performs the dark state display, the compensated liquid crystal layer corresponding to the same area and the active liquid crystal layer can provide the same phase difference value to achieve uniformity of the display picture. In other words, the double-layer super twisted nematic liquid crystal of the present invention. The display panel not only has a high display contrast, but also has a good display quality. 200925724 -610 24134twf.doc/n Other objects, features, and advantages will be more apparent. The following detailed description of the preferred embodiment of the present invention will be described in detail below. [Embodiment] A double-layer super twisted nematic liquid crystal display panel of the present invention has a high Obviously, 'But when the display of the dark state is displayed, the phase difference of the active liquid crystal layer in the visible area other than the visible area and the display area is inconsistent, and the 四 (4) is 9 degrees. Therefore, 'double When the layer super-twisted nematic Wei-crystal display panel displays the dark surface, the user will see the uneven surface and cannot satisfy the user's requirement for the quality. The present invention proposes the following for this problem. A double-layer super-twisted nematic liquid crystal display panel and a method for compensating for the chromatic aberration problem of the flat display panel. It is worth mentioning that the following various double-layer super-twisted nematic liquid crystal display panels and the compensation method of the color difference of the flat display panel are only used as examples. It is not intended to limit the scope of the invention. [First Embodiment] Fig. 2 is a view showing a double-layer super twisted nematic liquid crystal display panel according to a first embodiment of the present invention. Referring to Fig. 2, the double-layer super twisted nematic liquid crystal display panel 200 has a visible area P1 and a display area P2 located in the visible area P1. The double-layer super twisted nematic liquid crystal display panel 2 includes a main liquid crystal cell 220 and a compensating liquid crystal cell 24A. The active liquid crystal cell 220 includes a first active electrode layer 222, a second main electrode layer 224, and an active liquid crystal layer 226. The active liquid crystal layer 226 is located between the first active electrode layer 222 and the second active electrode layer 224 and the first active electrode layer 222 and the second active electrode layer 224 are located in the display area P2. 11 200925724 510 24134twf.doc/n The compensation liquid crystal cell 240 is overlapped with the active liquid crystal cell 220, and the compensation liquid crystal cell 240 includes a first compensation electrode layer 242, a second compensation electrode layer 244, and a first compensation electrode layer 242 and a second The compensation liquid crystal layer 246 is compensated between the electrode layers 244. The first compensation electrode layer 242 and the second compensation electrode layer 244 are located in the display region P2, wherein in the display region P2, the dark electric field applied to the compensation liquid crystal layer 246 varies with the dark electric field applied to the active liquid crystal layer 226. Specifically, the active liquid crystal cell 220 further includes a first substrate 228 and a first bonding substrate 230, wherein the active liquid crystal layer 226 is located between the first substrate 228 and the first bonding substrate 230, for example. At this time, the first active electrode layer 222 is disposed between the first substrate 228 and the active liquid crystal layer 226, and the second active electrode layer 224 is disposed between the first bonding substrate 230 and the active liquid crystal layer 226. Further, the compensation liquid crystal cell 24 further includes a second substrate 248 and a second bonding substrate 250' in which the compensation liquid crystal layer 246 is located between the second substrate 248 and the second bonding substrate 250. In addition, the second compensation electrode IGBT layer 244 is disposed between the second substrate 25A and the active liquid crystal layer 246, and the first compensation electrode layer 242 is disposed between the second bonding substrate 248 and the compensation liquid crystal layer 246. Further, in the present embodiment, the first bonding substrate 23 is, for example, bonded to the bonding substrate 248. Generally, the upper polarizing plate 272 and the lower polarizing plate 274 may be attached to the upper and lower surfaces of the double-layer super twisted nematic liquid crystal display panel 200, respectively. The double-layer super twisted nematic liquid crystal display panel 200 further includes a first alignment film 282 and a second alignment film 284. The first alignment film 282 is located between the first compensation electrode layer 242 and the compensation liquid crystal layer 246, and the second alignment film 284 12 200925724 ------------510 24134twf.doc/n is located in the second compensation The electrode layer 244 is interposed between the compensation liquid crystal layer 246. For example, the alignment direction of the first alignment film 282 and the second alignment film 284 is 180 to 270. In addition, the double-layer super twisted nematic liquid crystal display panel 200 further includes a third alignment film 292 and a fourth alignment film 294, and the third alignment film 292 is located between the first active electrode layer 222 and the active liquid crystal layer 226, and the fourth The alignment film 294 is located between the second active electrode layer 224 and the active liquid crystal layer 226. The alignment direction of the third alignment film 292 and the fourth alignment film 294 also intersects, for example, by 180 to 270. The active liquid crystal layer 226 has the same thickness as the compensation liquid crystal layer 246, for example, and the angle of intersection of the alignment direction of the first alignment film 282 and the second alignment film 284 is equal to, for example, the angle of intersection of the alignment directions of the third alignment film 292 and the fourth alignment film 294. . Therefore, the phase difference provided by the active liquid crystal layer 226 and the liquid crystal molecules of the compensation liquid crystal layer 246 is substantially the same, for example, from 400 nm to 1200 nm. In order to make the double-layer super twisted nematic liquid crystal display panel 200 have higher contrast display quality, the first alignment film 282, the second alignment film 284, the third alignment film 292, and the fourth alignment film 294 provide different alignment directions, for example. So that the liquid crystal molecules of the active liquid crystal layer 226 and the compensation liquid crystal layer 246 are arranged in different twist directions. Specifically, the twist direction of the liquid crystal molecules in the compensation liquid crystal layer 246 and the twist direction of the liquid crystal molecules in the active liquid crystal layer 226 are, for example, one twisted in a right-handed manner and the other twisted in a left-handed manner. That is, the liquid crystal molecules of the active liquid crystal layer 226 are, for example, arranged in a left-handed manner, and the liquid crystal molecules of the compensation liquid crystal layer 246 are arranged, for example, in a right-handed manner. Alternatively, the liquid crystal molecules of the active liquid crystal layer 226 have, for example, a right-handed arrangement, and the liquid crystal molecules of the compensation liquid crystal layer 13 200925724 246 are arranged, for example, in a left-handed manner. At this time, the phase difference provided by the compensation liquid crystal layer 246 can compensate the display surface generated by the active liquid crystal layer 226, so that the double-layer super twisted nematic liquid crystal display panel 2 has a high display quality. When the bi-folded twisted nematic liquid crystal display panel 200 is not displayed, the arrangement of the active liquid crystal layer 226 and the compensation liquid crystal layer 2牝 can provide complementary optical characteristics to avoid light leakage to further improve display contrast. In the present embodiment, the display area Ρ2 is defined, for example, by the area where the first active electrode layer 222 and the second active electrode layer 224 are located. Because the double-layer super twisted nematic liquid crystal display panel 200 is driven by the voltage difference between the first active electrode layer 222 and the second active electrode layer 224 to drive the liquid crystal molecules in the active liquid helium layer 226. Faceted. Therefore, the display area ρ2 can be said to be a domain defined by the first active electrode layer 222 and the second active electrode layer 224. In this embodiment, the second active electrode layer 224 of the first active electrode layer 222 is composed of, for example, a plurality of strip electrodes, and the strip electrodes of the first active electrode layer 222 are arranged in the first main service. The arrangement direction of the strip electrodes of the Thunder I is perpendicular to each other, and the movable electrode. In addition, the double-layer super twisted nematic liquid crystal display panel 2 further includes an active control circuit 260 electrically connected to the first active electrode layer 222. And a second active electrode layer 224. The active control circuit 26 can input a signal voltage to the first active electrode layer 222 and the second active electrode layer 224, for example, to drive the active liquid crystal layer by the voltage difference between the first active electrode layer 222 and the second active electrode layer 224. 226. In this way, the double-layer super twisted nematic liquid crystal display panel 200 can display the screen. 14 200925724 -----------610 24134twf.doc/na However, when the double-layer super twisted nematic liquid crystal display panel 200 performs a dark state, the first active electrode layer 222 and The second active electrode layer 224 has a voltage difference therebetween. Thus, the brightness exhibited by the display area p2 may be inconsistent with the brightness exhibited by the portion of the visible area ρι around HP2. Therefore, the present invention proposes a compensation method which causes a voltage difference between the first compensation electrode layer 242 and the first compensation electrode layer 244 to cause the double-layer super twisted nematic liquid crystal display panel 200 to display a uniform dark state. Specifically, the voltage difference between the second complementary electrode layer 242 and the second compensation electrode layer 244 is such that the active control circuit 260 is electrically connected by the flexible circuit board 262 or by other connection methods. The first compensation electrode layer 242 and the first compensation electrode layer 244. The signal voltage outputted by the active control circuit 26 can be transmitted to the first active electrode layer 222 and the second active electrode layer, for example, when the double-layer super-twisted nematic liquid crystal display panel 2 is in a dark state. 224 may also be transmitted to the first compensation electrode layer 242 and the second compensation electrode layer 244. The 2' compensation liquid crystal layer 246 has, for example, a -first electric field, and the active liquid crystal 226 has a second electric field. When the compensation liquid crystal | 纟 is applied to the first electric field, the liquid crystal molecules of the compensation liquid crystal layer 246 will produce a specific angle of deflection ' while the liquid crystal molecules in the active liquid crystal layer 226 will also be deflected with the second electric field. In the present embodiment, the first electric field is equal to the second electric field, so the compensating liquid β 曰 layer 246 can provide the same phase difference value as the active liquid crystal layer 226 in the display region 226. Of course, in other embodiments, the first electric field can also be set by other circuits without being equal to the second electric field, and the relationship between the first electric field and the second electric field can be different according to different design concepts. 15 200925724 ------- '610 24134twf.doc/n In this case, whether in the display area P2 or in the partial visible area P1 around the display area p2, the liquid crystal molecules of the liquid crystal layer 246 are compensated for The characteristics can effectively compensate the optical characteristics of the liquid crystal molecules of the active liquid crystal layer 226. The compensation liquid crystal unit 240 can provide different phase difference values in the partial visible area P1 around the display area p2 or the display area p2, so that the dark state of the double-layer super twisted nematic liquid crystal display panel 200 is uniformly uniform. That is to say, the double-layer super twisted nematic liquid crystal display panel 2 can have good display quality, especially when displaying a dark state.
整體而言，為了使雙層超扭轉向列型液晶顯示面板 細進行暗態顯示時，顯示區P2可與顯示區P2周圍的部 伤可視區P1呈現同樣暗的晝面。本實施例藉由軟性電路 板262將第一補償電極242以及第二補償電極244與主動 I電路260連接。因此，主動控制電路26〇可將訊號電 堅认至第一補償電極242以及第二補償電極244，以使 P2中的補償液晶層246受到第-電場影響而 補償作用。此時，雙層超扭轉向列型液晶顯示 板200具有良好的暗態顯示效果。 【第二實施例】 μ 並不限定雙層超扭轉向列型液晶顯示面板的 構僅為第—實施例所述H會示為本發明之第 之超扭轉向列型液晶顯示面板的示意圖。請 ，雙g超扭轉向列型液晶顯示面板300與雙層超 扭轉向列型液晶顯示面板2。〇大致相同，其差異僅= 16 200925724 ----— >10 24134twf.doc/n 雙層超扭轉向列型液晶顯示面板300中，第—接人其板與 第二接合基板可利用一共用基板330替代。由於了 ^層^ 扭轉向列型液晶顯示面板300之其他元件皆與雙層超扭^ 向列型液晶顯示面板200相同，在此便不贅述。曰 在本實施例中，第二主動電極層224與第一補償電極 層242例如配置於共用基板330相對之兩側表面上。實際 上，第二主動電極層224位於共用基板33〇與主動液晶 φ 226之間，而第一補償電極層242則位於共用基板33〇 ^ 補償液晶層246之間。此時，雙層超扭轉向列型液晶顯示 面板300的製作成本可因而減少，且雙層超扭轉向=型液 晶顯示面板300也可具有較薄的厚度。另外，雙層超扭轉 向列型液晶顯示面板300不須使兩片基板相互接合而可具 有較高的製程良率。 〃 當然，除了低製作成本、高製作良率以及薄型化之 外，雙層超扭轉向列型液晶顯示面板3〇〇的顯示品質更與 雙層超扭轉向列型液晶顯示面板200的顯示品質同樣/良 & 好。尤其是在進行暗態晝面顯示時，雙層超扭轉向列型^ 晶顯示面板300所呈現的畫面在顯示區P2以及顯示區p2 以外的部份可視區P1皆均勻一致。 【第三實施例】 由於’位於顯示區P2之補償液晶層246内的電場可 以不與主動液晶層226的電場一致，因此本發明在此提出 另一種雙層超扭轉向列型液晶顯示面板以進行更充分的說 明。圖4繪示為本發明之第三實施例之雙層超扭轉向列型 17 200925724 510 24134twf.doc/n 液晶顯示面板的示意圖。請參照圖4，雙層超扭轉向列型 液晶顯示面板働與雙層超扭轉向列型液晶顯示面板2〇〇 大致相同。不過，雙層超树向列魏晶顯示面板4〇〇更 包括補償控制電路460，其電性連接第一補償電極層242 與第二補償電極層244。此時，主動控制電路遍則不電 性連接第一補償電極層242及第二補償電極層244 ❹ ❹ 如此，雙層超扭轉向列型液晶顯示面板400中，顯示 區打内的補償液晶層246可受到補償控制電路46〇所 出的訊號電麗控制而具有不同的電場變化。實際上 控制電路460可在雙層超扭轉向列型液晶顯示面板進 订暗態畫面顯不時’施加—訊號電塵於第—補償電極声 ^與第二ΐ償電極層244。此時，補償液晶層246的光^ 246 主紐晶層226的光學特性，且補償液晶層 ^ 與主動液晶層226中的電場相同。實 i同大仙控制電路偏可以提供補償液晶層2奸 St I場，以調整顯示區P2中補償液晶層_的 液晶層246隨不同的使用需求而提供適 以’本發明使補償液晶層中具有電場的變化， 明之雙層超扭轉向列型液曰顧干作用。因此’本發 面::;之雙層超扭轉向列型液晶顯示面板： 有致的顯不效果。亦即，雙層超扭轉向列型液晶顯示 18 200925724 510 24134twf.d〇c/n 轉暗態顯示晝面。再者’本發明之雙層超扭 由一丘面板中第一接合基板與第二接合基板可 本“節省成本並提高製程良率。另外， 補償控制電二 板中可由-獨立的 償液曰厚所担# ”肩 中補你液晶層的電場。因此，補 變，二補償作用可以隨著不同使用需求而改 ❹ 限定err，以較佳實施例揭露如上，然其並非爻 =本發明之保護範圍當視後附之申物二:;者 【圖式簡單說明】 種雙層超扭轉向列型液晶顯示面板。 圖2繪不為本發明之第一實施例之 液晶顯示面板之示意圖。 ° ' 液曰本=之第二實施例之雙層超扭轉向列型 饮日日顯不面板的不意圖〇 圖4繪示為本發明之第三實施例之雙層超扭轉向列型 液晶顯示面板的示意圖。 【主要元件符號說明】 100、、300、働：雙層超扭轉向列型液晶顯示面 板 110、220:主動液晶單元 19 200925724 ______ 610 24134twf.doc/n 112、228 :第一基板 114、250 :第二基板 116、226 :主動液晶層 118、222 :第一主動電極層 120、224 :第二主動電極層 130、240 :補償液晶單元 132 :第三基板 0 134 :第四基板 136、246 :補償液晶層 230 :第一接合基板 242 :第一補償電極層 244 :第二補償電極層 248 :第二接合基板 260 :主動控制電路 262:軟性電路板 272 :上偏光片 ® 274:下偏光片 282、284、292、294 :配向膜 330 :共用基板 460 :補償控制電路 P1 :可視區 P2 :顯示區 20In general, in order to make the double-layer super twisted nematic liquid crystal display panel display in a dark state, the display region P2 can exhibit the same dark face as the visible region P1 around the display region P2. In this embodiment, the first compensation electrode 242 and the second compensation electrode 244 are connected to the active I circuit 260 by the flexible circuit board 262. Therefore, the active control circuit 26 can electrically recognize the signal to the first compensation electrode 242 and the second compensation electrode 244 so that the compensation liquid crystal layer 246 in P2 is affected by the first electric field to compensate. At this time, the double-layer super twisted nematic liquid crystal display panel 200 has a good dark state display effect. [Second Embodiment] μ is not limited to the configuration of the double-layer super twisted nematic liquid crystal display panel. The H described in the first embodiment is a schematic view of the super-twisted nematic liquid crystal display panel of the present invention. Please, the double-g super twisted nematic liquid crystal display panel 300 and the double-layer super twisted nematic liquid crystal display panel 2. 〇 is substantially the same, the difference is 200925724 ----- > 10 24134twf.doc / n Double-layer super twisted nematic liquid crystal display panel 300, the first access plate and the second bonded substrate can be utilized The common substrate 330 is replaced. Since the other elements of the torsion nematic liquid crystal display panel 300 are the same as those of the double-layer super-twist type liquid crystal display panel 200, they will not be described herein. In the present embodiment, the second active electrode layer 224 and the first compensation electrode layer 242 are disposed, for example, on opposite side surfaces of the common substrate 330. Actually, the second active electrode layer 224 is located between the common substrate 33 and the active liquid crystal φ 226, and the first compensation electrode layer 242 is located between the common substrate 33 and the compensation liquid crystal layer 246. At this time, the manufacturing cost of the double-layer super twisted nematic liquid crystal display panel 300 can be reduced, and the double-layer super twisting type liquid crystal display panel 300 can also have a thin thickness. In addition, the double-layer super-twisted nematic liquid crystal display panel 300 can have a high process yield without joining the two substrates to each other. 〃 Of course, in addition to low production cost, high production yield, and thinning, the display quality of the double-layer super twisted nematic liquid crystal display panel 3 更 is better than that of the double-layer super twisted nematic liquid crystal display panel 200. Same / good & good. In particular, when the dark state face display is performed, the screen presented by the double-layer super twisted nematic display panel 300 is uniformly uniform in the visible area P1 except the display area P2 and the display area p2. [Third Embodiment] Since the electric field in the compensation liquid crystal layer 246 located in the display region P2 may not coincide with the electric field of the active liquid crystal layer 226, the present invention proposes another double-layer super twisted nematic liquid crystal display panel. Make a fuller explanation. 4 is a schematic view showing a double-layer super twisted nematic type 17 200925724 510 24134 twf.doc/n liquid crystal display panel according to a third embodiment of the present invention. Referring to Fig. 4, the double-layer super twisted nematic liquid crystal display panel is substantially the same as the double-layer super twisted nematic liquid crystal display panel 2'. However, the dual-layer super-tree nematic display panel 4 further includes a compensation control circuit 460 electrically connected to the first compensation electrode layer 242 and the second compensation electrode layer 244. At this time, the active control circuit is electrically connected to the first compensation electrode layer 242 and the second compensation electrode layer 244. Thus, in the double-layer super twisted nematic liquid crystal display panel 400, the compensation liquid crystal layer in the display area 246 can be controlled by the signal control circuit of the compensation control circuit 46 to have different electric field changes. In fact, the control circuit 460 can apply a - signal electric dust to the first compensating electrode layer 244 and the second compensating electrode layer 244 when the dark state picture is displayed on the double-layer super twisted nematic liquid crystal display panel. At this time, the optical characteristics of the main layer 226 of the light 246 of the liquid crystal layer 246 are compensated, and the compensation liquid crystal layer ^ is the same as the electric field in the active liquid crystal layer 226. The present invention can provide compensation for the liquid crystal layer to adjust the liquid crystal layer _ in the display area P2 to provide liquid crystal layer 246 with different use requirements. The change of the electric field, the double-layer super-twisted nematic liquid in the Ming Dynasty. Therefore, the double-layer super-twisted nematic liquid crystal display panel of the present invention: has a remarkable effect. That is, the double-layer super twisted nematic liquid crystal display 18 200925724 510 24134twf.d〇c/n turns the dark state to display the kneading surface. Furthermore, the double-layer super-twisting of the present invention can save cost and improve process yield by the first bonding substrate and the second bonding substrate in a hill panel. In addition, the compensating control electric panel can be-independently replenished. Thick to bear # ” shoulder to fill your electric field in the liquid crystal layer. Therefore, the compensation, the second compensation function can be changed according to different use requirements to define err, and the preferred embodiment is disclosed above, but it is not 爻 = the scope of protection of the present invention is attached to the object 2:; Brief description of the figure] A double-layer super twisted nematic liquid crystal display panel. Fig. 2 is a schematic view showing a liquid crystal display panel which is not the first embodiment of the present invention. ° 'Liquid = = 之 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二A schematic of the display panel. [Description of main component symbols] 100, 300, 働: double-layer super twisted nematic liquid crystal display panel 110, 220: active liquid crystal cell 19 200925724 ______ 610 24134twf.doc/n 112, 228: first substrate 114, 250: Second substrate 116, 226: active liquid crystal layer 118, 222: first active electrode layer 120, 224: second active electrode layer 130, 240: compensation liquid crystal cell 132: third substrate 0 134: fourth substrate 136, 246: Compensation liquid crystal layer 230: first bonding substrate 242: first compensation electrode layer 244: second compensation electrode layer 248: second bonding substrate 260: active control circuit 262: flexible circuit board 272: upper polarizer® 274: lower polarizer 282, 284, 292, 294: alignment film 330: common substrate 460: compensation control circuit P1: visible area P2: display area 20