1356188 100年.08月ί9.日按正替_頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種半穿透半反射式電濕潤顯示裝置。 【先前技術】 [0002] 如今’諸多光電技術正在快速的發展且應用於下一代平 板顯示器’如投影顯示器（Projection Display)、可 撓式顯示器（Flexible Dispaly)等。在此環境下，一 種基於電濕潤原理的顯示裝置由於其響應速度快'視角 廣、耗電量小、輕薄便攜等優點受到廣泛的關注。 [0003] 請參閱圖1，係一種先前技術揭示的半穿透半反射式電濕 潤顯示裝置的平面結構示意圖。該顯示裝置1包括複數呈 矩陣排列之像素單元10，通過控制該像素單元1〇顯示不 同的灰階以組成該顯示裝置1所需顯示之畫面。 [醒]請參閱圖2，係圖1所示半穿透半反射式電濕潤顯示裝置j 之一像素單元10的剖視結構示意圖。該像素單元1〇包括 一上基板11、一與其相對之下基板12、設置於該二基板 11、12之間的四側壁13及一與該下基板12層疊設置之背 光模組19，該四側壁13依序首尾相接與該二基板11、12 形成一收容空間14。該二基板11、12係使用透明材料製 成，如玻璃或塑膠。 [0005] 該收容空間14由互不相融（Immiscible)的一第一液體 15及一第二液體16充滿。例如，該第一液體15是導電的 水，該第二液體16是黑色的油’作為吸收光束之遮蔽液 〇 096127497 表單編號A0101 第3頁/共24頁 1003305650-0 1356188 100年.08月19日庚正替换頁 [0006] 該下基板12鄰近該收容空間14之表面依序設置有一反射 層121、一透明電極層122及一絕緣層123。該透明電極 層122覆蓋該反射層121及該下基板12，該絕緣層123覆 蓋該透明電極層122。該反射層121對應該像素單元10之 一部份區域’其將該像素單元10劃分為反射區181及穿透 區182。其中’該反射層121係高反率材料製成，該透明 電極層122可以由氧化銦錫（ITO)製成，該絕緣層123係 由疏水性（Hydrophobic)材料製成，如無定型的含氟聚 合物（Amorphous F1 uoropo 1 ymer) ° [0007] 由於該絕緣層123之疏水性，即由於該絕緣層123、第一 液體15及第二液體16三者之間的表面張力 (Interfacial Tension)作用，使該第二液體16充分覆 蓋該絕緣層123。從而背光模組19發出的光束由於被該第 二液體16吸收而不能穿透，環境光亦由於被該第二液體 16吸收而不能到達該反射層121，故此時之像素單元1〇為 暗態（Off State)。 [0008] 請一併參閱圖3，係圖2所示像素單元亮態結構示意圖。 當一電壓差加載於該第一液體15與該透明電極層122上時 ，電荷的重新分佈破壞了暗態時分子張力的平衡態，即 此時電勢能的介入使該絕緣層123與第一液體15傾向於接 觸，故該第一液體15將該第二液體16排開，從而環境光 可以經過未被該第二液體16遮蔽之反射區181反射，背光 模組19發出之背光可以穿透該未被該第二液體16遮蔽之 穿透區182，實現半穿透半反射之亮態（〇n state)。 [0009] 096127497 請參閱圖4a至圖4c ’係圖2所示像素單元1〇顯示不同灰階 表單编號A0101 第4頁/共24頁 1003305650-0 1356188 [0010] [0011] [0012] 096127497 Ιύο年.08月i9日按正替換頁 時之平面結構示意圖。當該第二液體16由完全覆蓋該像 素單元10轉換為其邊緣移動至圖4a所示區域之過程中， 該像素單元10之反射區181灰階變化率較大，惟該穿透區 182灰階變化率較小。當該第二液體16邊緣繼續移動到圖 4b所示區域之過程中，該反射區181灰階變化率較小，惟 該穿透區182灰階變化率較大。當該第二液體16邊緣繼續 移動至圖4c所示之全亮狀態之過程中，該反射區181灰階 無變化，惟該穿透區182變化率較大。 故，該半穿透半反射式電濕潤顯示裝置1雖然實現了半穿 透半反射，惟其反射區181灰階隨第二液體16移動出現了 灰階無變化之情況，即該半穿透半反射式電濕潤顯示裝 置1改變灰階電壓時失去了對反射顯示模式灰階之控制力 ，故該半穿透半反射式電濕潤顯示裝置1顯示效果較差。 【發明内容】 有鑑於此，提供一種顯示效果較佳之半穿透半反射式電 濕潤顯示裝置實為必需。 一種半穿透半反射式電濕潤顯示裝置，其包括一上基板 ;一下基板，其與該上基板相對設置；一第一液體，設 置於該上、下基板之間，該第一液體係極性或導電性液 體；一與該第一液體互不相融之第二液體，設置於該上 、下基板之間，該第二液體係著色之非極性液體；及一 反射層圖案，設置於該下基板之一侧，該第二液體遮蔽 該反射層圖案之面積隨該第二液體遮蔽該下基板之面積 變化而變化。 一種半穿透半反射式電濕潤顯示裝置，其包括一上基板 表單編號A0101 第5頁/共24頁 1003305650-0 [0013] 1356188 , , 100年08月19日核正替换頁 ;一下基板，其與該上基板相對設置；一第一液體，設 置於該上、下基板之間，該第一液體係極性或導電性液 體；一與該第一液體互不相融之第二液體，設置於該上 、下基板之間，該第二液體係著色之非極性液體；一透 明電極，設置於該下基板之表面；及一反射層圖案，設 置於該下基板之一側，該反射層圖案所產生之灰階隨加 載於該第一液體與該透明電極之電壓差的變化而變化。 [0014] 與先前技術相比，本發明之半穿透半反射式電濕潤顯示 裝置由於採用了該反射層圖案之設計，使反射灰階隨該 半穿透半反射式電濕潤顯示裝置從暗態至亮態之間各個 灰階之變化而變化，故該半穿透半反射式電濕潤顯示裝 置顯示效果較佳。 【實施方式】 [0015] 請參閱圖5，係本發明半穿透半反射式電濕潤顯示裝置第 一實施方式之剖視結構示意圖。該半穿透半反射式電濕 潤顯示裝置2包括一上基板21、一與該上基板21相對設置 之下基板22、夾於上、下基板21、22之間的複數成行列 交又排列之側壁23及一設置於該下基板22 —側之背光模 組29。該侧壁23將該半穿透半反射式電濕潤顯示裝置2分 割成複數呈矩陣排列之正方形的像素單元20，且該側壁 23與該上、下基板21、22配合成複數收容空間24。其中 ，該上、下基板21、22均由透明材料製成，其可以為玻 璃或透明塑膠。 [0016] 該收容空間24由互不相融的一第一液體25及一第二液體 26充滿。該第一液體25可以是水或鹽溶液等導電液體或 096127497 表單編號A0101 第6頁/共24頁 1003305650-0 1356188 100年.08月19日修 極性液體，如氣化鉀（KC1)溶解於水和普 A/C〇h〇1)之混合液後所形成的溶液。該第二液體26可以 是著黑色的鏈烷或烷烴（Alkane)等非極性液體，如十六 院（Hexadecane)或油，以作為一種遮蔽液體。 通酒精（Ethyl [0017] 該下基板22#近該上基板21之表面上料設置有複數反 射圖案220、一第一絕緣層221、複數透明電極222、一 第二絕緣層223。該反射圖案220可以由铝鈦合金（A1Nd) 、鈦（Ti)或銀（Ag)製成。該透明電極222可以由氧化銦 錫（ΙΤ0)或氧化銦鋅（丨Z0)製成。該第_絕緣層221可以 由氮化矽等製成，該第二絕緣層223由疏水性材料製成， 如無定型的含氟聚合物。 [0018] 該像素單元20包括一反射區281、一穿透區282及一儲存 區283 ’該反射圖案22〇包括複數反射單元229，每一反 射單元229對應一像素單元20之反射區mi，該透明電極 222與該像素單元2〇 一一對應，且該透明電極μ〗對應該 像素單元20一角落處具有一開口（未標示）。 [0019] [0020] 該儲存區283對應該開口，用於儲存該像素單元20顯示亮 態時被該第一液體25排開的第二液體26。 °月—併參閱圖6 ’係圖5所示半穿透半反射式電濕潤顯示 裝置2一像素單元20之平面結構示意圖。該反射單元229 為一菱形’該菱形之長對角線與該正方形像素單元20之 儲存區283所在對角線重合，從而使該反射單元229沿與 該儲存區283與其相對一側之連線方向設置。 田β亥像素單元2〇之第一液體25與該透明電極222之間加載 096127497 表單蝙號Α0101 第7頁/共24頁 1003305650-0 [0021] 丄咖188 [0022] [0023] [0024] 096127497 100年08月19日修正替換頁 數個不同的灰階電壓，以實現該第二液體26從全部遮蔽 該像素單元20至全部排至該儲存區283之間的數種狀態的 過程中，該第二液體26遮蔽該反射層圖案22〇之面積隨該 第一液體26遮蔽該下基板22之面積變化而變化。 現估算該第二液體26遮蔽該反射區281、穿透區282及該 像素單元20面積之關係。設定該正方形之對角線長度為a ’該菱形短對角線長度為B，並假設該第二液體26之邊緣 為垂直於其移動方向之直線，即平行於該菱形短對角線 之直線。則在某時刻，該第二液體26遮蔽該反射區281面 積與遮蔽該穿透區282面積之比近似為一常數b/(a-B); 該第二液體26遮蔽該反射區281面積與遮蔽該像素單元2〇 面積之比為B/A，即第二液體26遮蔽該穿透區之面積隨該 第二液體26遮蔽該像素單元20之面積成正比例函數變化 可見，無論對於該反射區281還是該穿透區282，當該像 素單元20加載從暗態至亮態之間各個灰階電壓時，均可 以相應的改變該第二液體26遮蔽該反射區281及穿透區 282之面積。且當灰階電壓改變時，該反射區281灰階與 穿透區282灰階基本成比例改變。且在任意時刻’使該第 二液體26遮蔽該穿透區2 82面積與遮蔽該反射區281面積 之比介於0.2~10之間，可以令該半穿透半反射式電濕潤 顯示裝置2獲得良好的顯示效果。 相較於先前技術，本發明之半穿透半反射式電濕潤顯示 裝置2由於採用了該反射圖案220之設計’使該像素單元 20加載從暗態至亮態之間各個灰階電壓時，可以相應的 表單編號A0101 第8頁/共24頁 1003305650-0 1356188 [0025] [0026] [0027] [0028] [0029] 096127497 100年.08月19日 改變該第二液體26對反射區281遮蔽之面積，即該第二液 體26遮蔽該反射層圖案220之面積隨該第二液體26遮蔽該 下基板22之面積變化而變化，實現了每一灰階電壓對該 反射區281灰階之控制，進而使該半穿透半反射式電濕潤 顯示裝置2之反射區281具有較佳的顯示效果。 且，該反射圖案220之設計進一步使該像素單元2〇加載從 暗態至焭態之間各個灰階電壓時，可以相應的改變該第 二液體26對穿透區282遮蔽之面積’即該第二液體26遮蔽 該穿透區282之面積隨該第二液體26遮蔽該下基板22之面 積變化而變化，進而使該半穿透半反射式電濕潤顯示裝 置2之穿透區282具有較佳的顯示效果。 另匕外，當灰階改變時’該反射區281灰階與穿透區282灰 階可以基本成比例改變，使該半穿透半反射式顯示裝置2 之反射區281及穿透區282具有較均勻的顯示效果。 ^閱圖7’係本發明半穿透半反射式電濕潤顯示裝置第 像素Ϊ方式之示意圖。其與像素單元20之區別在於：該 該反^3〇之儲存區383位於該像素單元30之-側邊處， 相對-儲存區383延伸至該像素㈣。 當==3。加載從暗態至亮態之間各個灰階電壓時 咐遮蔽之目㈣的改變該第二液體％對反射區抝及穿透區 三實係^發明半穿透半反射式電濕潤顯示裝置第 4之^、圖。其與像素單元20之區別在於·· 單端號_ 第9頁/共24頁 該 1003305650-0 1356188 _ 100年08月19日修正替換頁 像素單元40中，複數平行間隔設置之反射單元429與該反 射區481對應。該反射單元429為由該儲存區483延伸至 該像素單元40相對一側邊之條形。 [0030] 請參閱圖9，係本發明半穿透半反射式電濕潤顯示裝置第 四實施方式之示意圖。其與像素單元20之區別在於：該 像素單元50中，複數間隔設置之圓形的反射單元529與該 反射區581對應，該反射單元529沿該儲存區583與其相 對一側之連線方向間隔設置。 [0031] 請參閱圖10，係本發明半穿透半反射式電濕潤顯示裝置 第五實施方式之示意圖。其與像素單元50之區別在於： 該反射單元629為正六邊形，係均勻間隔設置於該像素單 元60中。 [0032] 惟，本發明半穿透半反射式電濕潤顯示裝置並不限於上 述實施方式之所述，該像素單元20並不限於正方形，還 可以是長方形或其他幾何形狀；該反射圖案220還可以設 置於該第一絕緣層221或該透明電極222上，亦可以設置 於該下基板22遠離該上基板21之表面。 [0033] 綜上所述，本發明確已符合發明之要件，爰依法提出專 利申請。惟，以上所述者僅為本發明之較佳實施方式， 本發明之範圍並不以上述實施方式為限，舉凡熟習本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0034] 圖1係一種先前技術揭示的半穿透半反射式電濕潤顯示裝 096127497 表單編號A0101 第10頁/共24頁 1003305650-0 1356188 100年08月19日接正替换頁 置的平面結構示意圖。 [0035] 圖2係圖1所示半穿透半反射式電濕潤顯示裝置之一像素 單元的結構剖視示意圖。 [0036] 圖3係圖2所示像素單元亮態結構示意圖。 [0037] 圖4a至圖4c係圖2所示像素單元顯示不同灰階時之平面結 構示意圖。 [0038] 圖5係本發明半穿透半反射式顯示裝置第一實施方式之剖 視結構示意圖。 [0039] 圖6係圖5所示半穿透半反射式電濕潤顯示裝置一像素單 元之平面結構示意圖。 [0040] 圖7係本發明半穿透半反射式電濕潤顯示裝置第二實施方 式之示意圖。 [0041] 圖8係本發明半穿透半反射式電濕潤顯示裝置第三實施方 式之示意圖。 [0042] 圖9係本發明半穿透半反射式電濕潤顯示裝置第四實施方 式之示意圖。 [0043] 圖1 0係本發明半穿透半反射式電濕潤顯示裝置第五實施 方式之示意圖。 【主要元件符號說明】 [0044] 半穿透半反射式電濕潤顯示裝置：2 [0045] 像素單元：20、30、40、50、60 [0046] 上基板：21 096127497 表單編號A0101 第11頁/共24頁 1003305650-0. 1356188 [0047] 下基板：22 [0048] 側壁：23 [0049] 收容空間：24 [0050] 第一液體：25 [0051] 第二液體：26、36 [0052] 背光模組：29 [0053] 反射圖案：220 [0054] 第一絕緣層：221 [0055] 透明電極：222 [0056] 第二絕緣層：223 [0057] 反射單元：229、329、429、529、629 [0058] 反射區：281、381、48卜 581 [0059] 穿透區：282、382 [0060] 儲存區：283、383、483、583 096127497 表單编號A0101 第12頁/共24頁 100年08月19日修正替换頁 1003305650-01356188 100 years. August ί9. Days by _ page VI. Description of the invention: [Technical Field of the Invention] [0001] The present invention relates to a transflective electrowetting display device. [Prior Art] [0002] Today, many photovoltaic technologies are rapidly developing and applied to next-generation flat panel displays such as Projection Display, Flexible Dispaly, and the like. In this environment, a display device based on the electrowetting principle has received wide attention due to its fast response speed, wide viewing angle, low power consumption, and light and portable. [0003] Referring to FIG. 1, a schematic diagram of a planar structure of a transflective electrowetting display device disclosed in the prior art. The display device 1 includes a plurality of pixel units 10 arranged in a matrix, and by controlling the pixel units 1 to display different gray scales to form a screen to be displayed by the display device 1. [Wake] Please refer to FIG. 2 , which is a cross-sectional structural diagram of a pixel unit 10 of the transflective electrowetting display device j shown in FIG. 1 . The pixel unit 1 includes an upper substrate 11 , a substrate 12 opposite thereto, four sidewalls 13 disposed between the two substrates 11 , 12 , and a backlight module 19 stacked on the lower substrate 12 . The side walls 13 are connected end to end to form a receiving space 14 with the two substrates 11 and 12. The two substrates 11, 12 are made of a transparent material such as glass or plastic. [0005] The accommodating space 14 is filled with a first liquid 15 and a second liquid 16 which are incompatible with each other. For example, the first liquid 15 is electrically conductive water, the second liquid 16 is black oil 'as a shielding liquid for absorbing light beams 〇 096127497 Form No. A0101 Page 3 of 24 Page 1003305650-0 1356188 100 years. August 19 The lower substrate 12 is provided with a reflective layer 121, a transparent electrode layer 122 and an insulating layer 123 adjacent to the surface of the receiving space 14. The transparent electrode layer 122 covers the reflective layer 121 and the lower substrate 12. The insulating layer 123 covers the transparent electrode layer 122. The reflective layer 121 corresponds to a portion of the pixel unit 10 which divides the pixel unit 10 into a reflective region 181 and a transmissive region 182. Wherein the reflective layer 121 is made of a high-reflectivity material, and the transparent electrode layer 122 may be made of indium tin oxide (ITO), which is made of a hydrophobic (Hydrophobic) material, such as an amorphous type. Fluoropolymer (Amorphous F1 uoropo 1 ymer) ° [0007] Due to the hydrophobicity of the insulating layer 123, that is, due to the surface tension between the insulating layer 123, the first liquid 15 and the second liquid 16 (Interfacial Tension) The second liquid 16 is sufficiently covered to cover the insulating layer 123. Therefore, the light beam emitted by the backlight module 19 cannot be penetrated by the second liquid 16, and the ambient light is also absorbed by the second liquid 16 and cannot reach the reflective layer 121. Therefore, the pixel unit 1 is dark. (Off State). [0008] Please refer to FIG. 3 together, which is a schematic diagram of the bright state structure of the pixel unit shown in FIG. 2. When a voltage difference is applied to the first liquid 15 and the transparent electrode layer 122, the redistribution of charge destroys the equilibrium state of the molecular tension in the dark state, that is, the intervention of the potential energy causes the insulating layer 123 and the first The liquid 15 tends to be in contact, so that the first liquid 15 aligns the second liquid 16 so that the ambient light can be reflected by the reflective area 181 not shielded by the second liquid 16, and the backlight emitted by the backlight module 19 can penetrate. The penetrating region 182, which is not covered by the second liquid 16, achieves a semi-transflective state. [0009] 096127497 Please refer to FIG. 4a to FIG. 4c'. The pixel unit 1 shown in FIG. 2 displays different gray scale form numbers A0101 4th page/24 pages 1003305650-0 1356188 [0010] [0012] 096127497 Ιύο年.08 i9 The plan of the plane structure when the page is replaced. When the second liquid 16 is completely covered by the pixel unit 10 and its edge is moved to the area shown in FIG. 4a, the gray area change rate of the reflective area 181 of the pixel unit 10 is large, but the penetration area 182 is gray. The rate of change of the order is small. When the edge of the second liquid 16 continues to move to the area shown in Fig. 4b, the gray-scale change rate of the reflection area 181 is small, but the gray-scale change rate of the penetration area 182 is large. When the edge of the second liquid 16 continues to move to the fully bright state shown in Fig. 4c, the gray level of the reflection zone 181 does not change, but the penetration zone 182 has a large rate of change. Therefore, although the transflective electro-wetting display device 1 realizes transflective reflection, the gray level of the reflection region 181 moves with the movement of the second liquid 16, and the gray scale does not change, that is, the semi-transparent half. When the reflective electrowetting display device 1 changes the gray scale voltage, the control force for the gray scale of the reflective display mode is lost, so that the transflective electrowetting display device 1 has a poor display effect. SUMMARY OF THE INVENTION In view of the above, it is essential to provide a transflective electrowetting display device having a better display effect. A transflective electro-wetting display device comprising an upper substrate; a lower substrate disposed opposite the upper substrate; a first liquid disposed between the upper and lower substrates, the first liquid system polarity Or a conductive liquid; a second liquid that is incompatible with the first liquid, disposed between the upper and lower substrates, the second liquid system is colored with a non-polar liquid; and a reflective layer pattern is disposed on the On one side of the lower substrate, the area of the second liquid shielding the reflective layer pattern changes as the area of the second liquid shields the lower substrate changes. A transflective electro-wetting display device comprising an upper substrate form number A0101, page 5/24 pages, 1003305650-0 [0013] 1356188, a nuclear replacement page on August 19, 100; The first liquid is disposed opposite to the upper substrate; a first liquid is disposed between the upper and lower substrates, the first liquid system is in a polar or conductive liquid; and a second liquid that is incompatible with the first liquid is disposed Between the upper and lower substrates, the second liquid system is colored with a non-polar liquid; a transparent electrode is disposed on the surface of the lower substrate; and a reflective layer pattern is disposed on one side of the lower substrate, the reflective layer The gray level produced by the pattern changes as a function of a voltage difference applied between the first liquid and the transparent electrode. [0014] Compared with the prior art, the transflective electrowetting display device of the present invention adopts the design of the reflective layer pattern, so that the reflective gray scale is dark with the transflective electrowetting display device. The transflective electrowetting display device has a better display effect, and changes in the gray scales between the states and the bright states. [Embodiment] FIG. 5 is a cross-sectional structural view showing a first embodiment of a transflective electrowetting display device according to the present invention. The transflective electrowetting display device 2 includes an upper substrate 21, a substrate 22 disposed opposite the upper substrate 21, and a plurality of rows and columns arranged between the upper and lower substrates 21 and 22. The sidewall 23 and a backlight module 29 disposed on the side of the lower substrate 22. The side wall 23 divides the transflective electrowetting display device 2 into a plurality of square pixel units 20 arranged in a matrix, and the side walls 23 and the upper and lower substrates 21 and 22 are combined into a plurality of housing spaces 24. The upper and lower substrates 21 and 22 are made of a transparent material, which may be glass or transparent plastic. [0016] The accommodating space 24 is filled with a first liquid 25 and a second liquid 26 which are not compatible with each other. The first liquid 25 may be a conductive liquid such as water or a salt solution or 096127497 Form No. A0101 Page 6 of 24 pages 1003305650-0 1356188 100 years. August 19th repairs a polar liquid such as potassium carbonate (KC1) dissolved in A solution formed after the mixture of water and A/C〇h〇1). The second liquid 26 may be a non-polar liquid such as a black alkane or an alkane (Alkane) such as Hexadecane or oil as a shielding liquid. Alcohol (Ethyl) [0017] The lower substrate 22 is coated with a plurality of reflective patterns 220, a first insulating layer 221, a plurality of transparent electrodes 222, and a second insulating layer 223. 220 may be made of aluminum titanium alloy (A1Nd), titanium (Ti) or silver (Ag). The transparent electrode 222 may be made of indium tin oxide (ΙΤ0) or indium zinc oxide (丨Z0). 221 may be made of tantalum nitride or the like, and the second insulating layer 223 is made of a hydrophobic material such as an amorphous fluorine-containing polymer. [0018] The pixel unit 20 includes a reflective region 281 and a penetrating region 282. And a storage area 283 ′′ the reflective pattern 22 〇 includes a plurality of reflective units 229 , each of the reflective units 229 corresponding to a reflective area mi of a pixel unit 20 , the transparent electrode 222 and the pixel unit 2 〇 one-to-one correspondence, and the transparent electrode μ has an opening (not shown) corresponding to a corner of the pixel unit 20. [0020] [0020] The storage area 283 corresponds to an opening for storing the first liquid 25 when the pixel unit 20 displays a bright state. Open the second liquid 26. ° month - and see Figure 6 'shown in Figure 5 A schematic diagram of a planar structure of a pixel unit 20 of a transflective electro-wet display device 2. The reflective unit 229 is a diamond shaped 'the long diagonal of the diamond coincides with the diagonal of the storage area 283 of the square pixel unit 20 Therefore, the reflecting unit 229 is disposed along the connecting direction with the storage area 283 and the opposite side of the storage area 283. The first liquid 25 of the field 像素 pixel unit 2 is loaded with the transparent electrode 222 096127497 form bat number Α 0101 7th Page/Total 24 Pages 1003305650-0 [0021] 丄 188 [0022] [0024] 096127497 On August 19, 100, the replacement page was modified by a number of different gray scale voltages to achieve the second liquid 26 from all The second liquid 26 shields the area of the reflective layer pattern 22 from obscuring the area of the lower substrate 22 with the first liquid 26 during the shielding of the plurality of states between the pixel unit 20 and the entire discharge region 283. It is estimated that the second liquid 26 shields the relationship between the reflective region 281, the transmissive region 282, and the area of the pixel unit 20. The diagonal length of the square is set to a 'the rhombic short diagonal length is B. And assume the second The edge of the body 26 is a line perpendicular to the direction of movement thereof, that is, a line parallel to the short diagonal of the diamond. At a certain moment, the second liquid 26 shields the area of the reflective area 281 and shields the area of the penetration area 282. The ratio is approximately a constant b/(aB); the ratio of the area of the second liquid 26 shielding the area of the reflective area 281 to the area of the pixel unit 2 is B/A, that is, the area of the second liquid 26 shielding the penetration area The area of the second liquid 26 shielding the pixel unit 20 is visible as a function of a proportional function, regardless of the reflective region 281 or the transmissive region 282, when the pixel unit 20 loads the respective gray scale voltages from the dark state to the bright state. The second liquid 26 can be correspondingly shielded from the area of the reflective region 281 and the penetrating region 282. And when the gray level voltage is changed, the gray level of the reflection area 281 is substantially proportional to the gray level of the penetration area 282. And the ratio of the area of the second liquid 26 shielding the area of the penetration area 2 to the area of the shielding area 281 is between 0.2 and 10 at any time, so that the transflective electrowetting display device 2 can be made. Get a good display. Compared with the prior art, the transflective electrowetting display device 2 of the present invention adopts the design of the reflective pattern 220 to cause the pixel unit 20 to load respective gray scale voltages from a dark state to a bright state. The corresponding form number A0101, page 8 of 24 pages 1003305650-0 1356188 [0025] [0028] [0029] 096127497 100 years. August 19th change the second liquid 26 to the reflection zone 281 The area of the shield, that is, the area of the second liquid 26 shielding the reflective layer pattern 220 varies with the area of the second liquid 26 shielding the lower substrate 22, and the gray scale voltage of the reflective area 281 is realized for each gray scale voltage. Control, and thus the reflective area 281 of the transflective electrowetting display device 2 has a better display effect. Moreover, the design of the reflective pattern 220 further causes the pixel unit 2 to load the gray scale voltage from the dark state to the chirp state, and the area of the second liquid 26 shielded by the penetration region 282 can be correspondingly changed. The area of the second liquid 26 shielding the penetration region 282 varies with the area of the second liquid 26 shielding the lower substrate 22, so that the penetration region 282 of the transflective electrowetting display device 2 has a comparative Good display effect. In addition, when the gray level is changed, the gray level of the reflection area 281 and the gray level of the penetration area 282 may be substantially proportionally changed, so that the reflection area 281 and the penetration area 282 of the transflective display device 2 have A more uniform display. Fig. 7 is a schematic view showing the first pixel mode of the transflective electrowetting display device of the present invention. The difference from the pixel unit 20 is that the storage area 383 of the inverse is located at the side of the pixel unit 30, and the opposite-storage area 383 extends to the pixel (four). When == 3. When the gray scale voltage is changed from the dark state to the bright state, the shadow of the shadow (4) is changed. The second liquid % is opposite to the reflection zone and the penetration zone. The semi-transflective electrowetting display device is invented. 4 of ^, figure. The difference between the pixel unit 20 and the pixel unit 20 is that the single-end number _ page 9 / total 24 pages 1003305650-0 1356188 _ August 19, 19 correction of the replacement page pixel unit 40, the plurality of parallel spacing of the reflection unit 429 and The reflection area 481 corresponds to each other. The reflecting unit 429 is a strip extending from the storage area 483 to the opposite side of the pixel unit 40. Referring to FIG. 9, a schematic view of a fourth embodiment of a transflective electrowetting display device of the present invention is shown. The difference from the pixel unit 20 is that, in the pixel unit 50, a plurality of spaced-apart circular reflecting units 529 correspond to the reflective area 581, and the reflecting unit 529 is spaced along the connecting direction of the storage area 583 from the opposite side thereof. Settings. 10 is a schematic view showing a fifth embodiment of the transflective electrowetting display device of the present invention. The difference from the pixel unit 50 is that the reflecting unit 629 is a regular hexagon and is evenly spaced in the pixel unit 60. [0032] However, the transflective electrowetting display device of the present invention is not limited to the above embodiment, and the pixel unit 20 is not limited to a square, and may also be a rectangle or other geometric shape; the reflective pattern 220 is also The first insulating layer 221 or the transparent electrode 222 may be disposed on the surface of the lower substrate 22 away from the upper substrate 21. [0033] In summary, the present invention has indeed met the requirements of the invention, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0034] FIG. 1 is a transflective electrowetting display device disclosed in the prior art 096127497 Form No. A0101 Page 10 / Total 24 Page 1003305650-0 1356188 100 August 19 A schematic diagram of the planar structure of the replacement page. 2 is a cross-sectional view showing the structure of a pixel unit of a transflective electrowetting display device shown in FIG. 1. 3 is a schematic diagram showing the structure of a bright state of the pixel unit shown in FIG. 2. 4a to 4c are schematic diagrams showing the planar structure when the pixel unit shown in FIG. 2 displays different gray scales. 5 is a cross-sectional structural view showing a first embodiment of a transflective display device of the present invention. 6 is a schematic plan view showing a planar structure of a pixel unit of the transflective electro-wetting display device shown in FIG. 5. 7 is a schematic view showing a second embodiment of the transflective electrowetting display device of the present invention. 8 is a schematic view showing a third embodiment of the transflective electrowetting display device of the present invention. 9 is a schematic view showing a fourth embodiment of the transflective electrowetting display device of the present invention. 10 is a schematic view showing a fifth embodiment of the transflective electrowetting display device of the present invention. [Main component symbol description] [0044] Transflective electro-wet display device: 2 [0045] Pixel unit: 20, 30, 40, 50, 60 [0046] Upper substrate: 21 096127497 Form No. A0101 Page 11 / Total 24 pages 1003305650-0. 1356188 [0047] Lower substrate: 22 [0048] Side wall: 23 [0049] Containing space: 24 [0050] First liquid: 25 [0051] Second liquid: 26, 36 [0052] Backlight module: 29 [0053] Reflective pattern: 220 [0054] First insulating layer: 221 [0055] Transparent electrode: 222 [0056] Second insulating layer: 223 [0057] Reflecting unit: 229, 329, 429, 529 629 [0058] Reflecting area: 281, 381, 48 581 [0059] Penetration area: 282, 382 [0060] Storage area: 283, 383, 483, 583 096127497 Form number A0101 Page 12 of 24 Corrected replacement page 1003305650-0 on August 19, 100