1330292 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種液晶顯示裝置，特職關於―種邊緣電場 開關(Fringe Field Switching ’ FFS)型液晶顯示裝置。 【先前技術】 由於液晶顯示裝置具輕、薄、耗電小等優點，廣泛應用於筆記 本電腦、行動雜、個人數位助鱗賊化魏設備。液晶顯示 裝置藉由液B0面板及为光源裝置實現顯示功能，但背光源裝置係 整個液晶顯示裝置之主要耗能裝置’故為實現節能需求，出現利 用外界環境光為光源之液晶顯示裝置，即反射式液晶顯示裝置， 然其存在液晶分子響應速度慢、視角範圍窄之缺陷。 為克服反射式液晶顯示裝置液晶分子響應速度慢、視角範圍窄 之缺陷，出現一種反射式FFS型液晶顯示裝置。請參閱第一圖， 係2003年6月24日公告之第6,583,842號美國專利所揭示之反射 式FFS型液晶顯示裝置，該液晶顯示裝置1〇〇包括上、下透明基 底101、102 ’配向層110、液晶層13〇、像素電極15〇、絕緣層17〇 及反向電極19〇(Counter Electrode)，其中反向電極19〇、絕緣層 170、像素電極150及配向層11〇依次分佈於下基底1〇2上，上基 底101相對於该液晶層130之表面附著有配向層11〇，液晶層【go 置於該一基底' 1〇2間。其中，反向電極190為均勻分佈於下 基底102整個表面之導電層，由具有較高反射係數之材料如金屬 鋁或金屬金製得，充當外界環境光之反射體。 3 1330292 該液晶顯示裝置100顯示時，其光源採用外界環境光，通過反 向電極190之反射功能實現顯示目的，可實現節能功效；其反向 電極190作為整體份佈於該下基底102上，位於該像素電極15〇 豎直下方，在顯示過程中該二電極15〇、190所產生之邊緣電場 (FringeField ’圖未示)分佈更密集，使液晶分子在水平方向響應速 度更快，並且視角更廣。 然’該液晶顯示裝置100在環境光不充足情況下，無法為顯示 提供足夠光亮，畫面影像出現翻不清之情況，而在外界環境光 嚴重缺乏情況下如在密室巾，職液晶顯示裝置⑽無法使用， 使該液晶顯示裝置1GG無法健顯示質量，並縮小其翻範圍。 有鑑於此，提供-種應用範圍廣、·可保證顯示質量之液晶顯示 裝置實為必需。 【發明内容】 應用範圍廣、可保證顯示質量之液晶 本發明之目的在於提供一 顯示裝置。 :W稀置心：透明基底；—液 二透明基底之間，·像素電極，其位於該液晶層 基= =一鈍化層，其位於該像素電極與該—翻基底像反向帝 錄素電極與該—透明基底之間，其與該像素電極形成 該反向=:用及5—背光源’其中，該反向電極係為半反射元件， 域，且二二厂金屬材料製成’並包括穿透區域與反射區 透域的厚度小於該反概域的厚度。 4 1330292 —與先_術概，本發微裝置之反向電極係為—半反 射7L件’即可制或單獨顧外界環境光餘晶顯示裝置内部之 光源為圖像之提供光亮，在環鼓不足時可主要通過使用背 光源所發a之光束制顯示目的，在魏光嚴重缺树，則可完 全使用背絲。該液晶顯示裝置可林同環境下倾顯示質量2 獻顯林置之顧範圍，因其枝全賴#絲提供光亮與 π全依賴背光源錢而達到顯示目的之液晶顯示裝置相比，可減 小背光源之功耗，達到節能之目的。 【實施方式】 請參閱第二® ’係本發關稀置第—實施方式之一次像 素單位示意圖。該液晶顯示裝置_包括二透明基底观、302， 分佈於其間之液晶層330及位於該透明基底3〇2下方之背光源 〇 /、中該透明基底302上依次附著有反向電極35〇、絕緣層 37〇、像素電極390及配向層31〇，該透明基底3〇1上附著有配向 層310。其中，該像素電極39〇為若干直條狀結構導電體該反向 電極350係分佈於整塊基底3〇2上之金屬導電層，其材料可採用 金屬鋁，該絕緣層370使二者絕緣，其為透明不導電材料製得。 該反向電極350具有一反射區域353及一穿透區域351，其中 該反向電極350之穿透區域351其鋁層厚度小於1〇〇奈米，反射 區域353之鋁層厚度相對較厚，可反射照射到其上之光束。 紹層厚度達100奈米時，照射到其上之光束即可將其穿透，其 穿透率大於1%，其厚度越薄其穿透率越大。 5 1330292 當該液晶顯示裝置300工作時’因該像素電極39〇位於該反向 電極35〇豎直上方，可產生邊緣電場，使該液晶層謂中之液晶 ^子(未標示)發生偏轉’即為FFS型液晶顯示裝置。從背光源340 毛射出之光束照射到該反向電極35G上時，由於該穿透區域奴 之链層厚度小於奈米，可使照射到該穿透區域351上之光束 部份通過’ 示提供-技；t外界環境光·職反向電極 350上時，其反射區域353之紹層厚度較厚，可在該區域發生反 射，光束可被反射回該液晶層330，為顯示提供另一光源。該二光 源可共同或單獨為練示裝置提供光亮，實現顯示。 其中該反向電極350之穿透區域351其銘層厚度在保證小於 1〇〇奈米時，可根據顯示器之穿透率的實際需要做調整。 其中，由於該反向電極350之穿透區域351金屬層厚度較薄， 其電阻亦較大，為降低其電阻，可在該反向電極35〇表面塗附氧 化鋼錫(Indium Tin Oxide，ITO)薄膜(圖未示)降低其電阻。 請參閱第三圖’係本發明液晶顯示裝置第二實施方式之一次像 素單位示意圖，本實施方式與第一實施方式大致相同，惟，本實 鈀方式中液晶顯示裝置4〇〇之反向電極450包括反射區域451及 穿透區域453，其中反射區域451採用金屬材料製得，如金屬鋁， 使其具有導電特性並可反射照射到其上之光束，其中穿透區域453 採用IT0或氧化銦鋅(indium Zinc Oxide，IZO)材料製得，該二種 導電材料均具有透光特性，可使從背光源440(未標示)發射出之光 束通過並照射到該液晶層430(未標示）。 6 1330292 請參閱第四圖’係本發明液晶顯示裝置第三實施方式之一次像 素單位不意圖。本實施方式與第一實施方式大致相同，惟’本實 施方式中液晶顯示裝置500之反向電極550係完全採用透明導電 材料製得，如IT0或;[Z0，其上附著—層導電半反射薄膜52〇，其 中該導電半反射薄膜520係為二種導電材料如IT〇、二氧化鈦 (Ti〇2)依次交錯壓著而成，可為7至9層結構。由於該ΙΤ0及Ti〇2 均為透明材質，並分別具有較高與較低之折射率，該特性可使該 導電半反射薄膜520同時具有反射與穿透功能。該液晶顯示装= 作％，從月光源540(未標示)發出之光束可穿透該導電半反 f薄膜520照射到液晶層53〇’外界環境光亦可通過其反射回該液 曰曰層530 ’為顯示提供光源。在本實施方式中，該導電半反射薄膜 別可製成更多層數結構使其具有更好之穿透、反射光學特性。其 中。亥導電半反射薄膜52〇亦可貼附於該反向電極55〇下方。 上述各實施方式中，採用正向型或負向型液晶分子均可 紐亦可採㈣線餘，反的極之_域與反聽域之面積 比例可根據需要任意調整。 、 申所述’本發明確已符合發明專利之要件，爰依法提出專利 X上職者僅林發明之健實财式，本發明之範 内。 心化，皆應涵蓋於町申請專利範圍 【圖式簡單說明】 7 1330292 第一圖係先前技術液晶顯示裝置之示意圖。 第二圖係本發明液晶顯示裝置第一實施方式之一次像素單位 示意圖。 第三圖係本發明液晶顯示裝置第二實施方式之一次像素單位 示意圖。 第四圖係本發明液晶顯示裝置第三實施方式之一次像素單位 示意圖。 【主要元件符號說明】 液晶顯示裝置 300、500 配向層 310 液晶層 330、530 背光源 340 反向電極 350、450、550 導電半反射膜 520 絕緣層 370 像素電極 390 透明基底 301 ' 302 穿透區域 351 反射區域 353 81330292 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a liquid crystal display device, and relates to a Fringe Field Switching (FFS) type liquid crystal display device. [Prior Art] Since the liquid crystal display device has the advantages of being light, thin, and low in power consumption, it is widely used in notebook computers, mobile miscellaneous, and personal digital help scale thieves. The liquid crystal display device realizes the display function by the liquid B0 panel and the light source device, but the backlight device is the main energy consuming device of the entire liquid crystal display device. Therefore, in order to realize energy saving demand, a liquid crystal display device using ambient light as a light source appears, that is, The reflective liquid crystal display device has the defects that the liquid crystal molecules have a slow response speed and a narrow viewing angle range. In order to overcome the shortcomings of the liquid crystal molecules of the reflective liquid crystal display device, such as slow response speed and narrow viewing angle range, a reflective FFS type liquid crystal display device has appeared. Referring to the first figure, a reflective FFS type liquid crystal display device disclosed in U.S. Patent No. 6,583,842, the entire disclosure of which is incorporated herein by reference. 110, liquid crystal layer 13 〇, pixel electrode 15 〇, insulating layer 17 〇 and counter electrode 19 〇 (Counter Electrode), wherein the counter electrode 19 〇, the insulating layer 170, the pixel electrode 150 and the alignment layer 11 〇 are sequentially distributed under On the substrate 1〇2, an alignment layer 11〇 is attached to the upper substrate 101 with respect to the surface of the liquid crystal layer 130, and a liquid crystal layer [go is placed between the substrates '1〇2'. The counter electrode 190 is a conductive layer uniformly distributed on the entire surface of the lower substrate 102, and is made of a material having a high reflection coefficient such as metal aluminum or metal gold, and serves as a reflector of ambient light. 3 1330292 When the liquid crystal display device 100 is displayed, the light source adopts ambient light, and the display function is realized by the reflection function of the counter electrode 190, thereby achieving energy saving effect; the opposite electrode 190 is distributed on the lower substrate 102 as a whole. Located vertically below the pixel electrode 15〇, the fringe field (not shown) generated by the two electrodes 15〇, 190 is more densely distributed during the display process, so that the liquid crystal molecules respond faster in the horizontal direction, and the viewing angle is higher. More extensive. However, in the case where the ambient light is insufficient, the liquid crystal display device 100 cannot provide sufficient brightness for the display, and the image of the screen is unclear, and in the case of severe lack of ambient light, such as in a dense room towel, the liquid crystal display device (10) Unusable, the liquid crystal display device 1GG is unable to display the quality and reduce the flip range. In view of this, it is necessary to provide a liquid crystal display device having a wide range of applications and ensuring display quality. SUMMARY OF THE INVENTION A liquid crystal having a wide range of applications and ensuring display quality is an object of the present invention to provide a display device. :W thin core: transparent substrate; - between liquid two transparent substrates, · pixel electrode, which is located at the liquid crystal layer base == a passivation layer, which is located at the pixel electrode and the flip substrate Between the transparent substrate and the pixel electrode, the reverse direction is formed: and the backlight is used as a semi-reflective element, and the second electrode is made of a metal material. The thickness including the penetration region and the reflection region is smaller than the thickness of the inverse region. 4 1330292 — and the first _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ When the drum is insufficient, it can be mainly used for display purposes by using the light beam emitted by the backlight. When the Weiguang is seriously lacking in the tree, the back wire can be completely used. The liquid crystal display device can display the quality of the forest in the same environment, and the range of the display is 2, because the branch provides the light and the π is more dependent on the backlight money to achieve the display purpose of the liquid crystal display device, can be reduced The power consumption of a small backlight achieves the goal of energy saving. [Embodiment] Please refer to the schematic diagram of a pixel unit of the second ® ′′. The liquid crystal display device includes two transparent substrate views 302, a liquid crystal layer 330 disposed therebetween, and a backlight 位于/ under the transparent substrate 3〇2, wherein the transparent substrate 302 is sequentially adhered with a reverse electrode 35〇, The insulating layer 37A, the pixel electrode 390, and the alignment layer 31A are provided with an alignment layer 310 attached to the transparent substrate 3〇1. The pixel electrode 39 is a plurality of straight strip-shaped structural conductors. The opposite electrode 350 is a metal conductive layer distributed on the entire substrate 3〇2. The material thereof may be metal aluminum, and the insulating layer 370 insulates the two. It is made of a transparent non-conductive material. The reflective electrode 350 has a reflective region 353 and a transmissive region 351, wherein the transmissive region 351 of the counter electrode 350 has an aluminum layer thickness of less than 1 nanometer, and the reflective region 353 has a relatively thick aluminum layer. The beam of light that is incident thereon can be reflected. When the thickness of the layer is up to 100 nm, the light beam irradiated thereon can penetrate it, and its penetration rate is greater than 1%, and the thinner the thickness, the greater the penetration rate. 5 1330292 When the liquid crystal display device 300 is in operation, 'the pixel electrode 39 is located vertically above the opposite electrode 35〇, and a fringe electric field can be generated to cause the liquid crystal layer (not labeled) to be deflected in the liquid crystal layer. That is, it is an FFS type liquid crystal display device. When the light beam emitted from the backlight 340 is irradiated onto the opposite electrode 35G, since the thickness of the chain layer of the penetration region is less than nanometer, the portion of the light beam irradiated onto the penetration region 351 can be provided by When the external ambient light/service counter electrode 350 is on, the thickness of the reflective region 353 is thicker, and reflection can occur in the region, and the light beam can be reflected back to the liquid crystal layer 330 to provide another light source for display. . The two light sources can provide light to the exercise device together or separately to achieve display. Wherein the penetration region 351 of the counter electrode 350 has an inscribed layer thickness of less than 1 nanometer, which can be adjusted according to the actual needs of the transmittance of the display. Wherein, since the metal layer of the penetration region 351 of the opposite electrode 350 is thin, the resistance thereof is also large. To reduce the resistance, the surface of the opposite electrode 35 can be coated with tin oxide (Indium Tin Oxide, ITO). The film (not shown) reduces its electrical resistance. Referring to FIG. 3A, a schematic diagram of a primary pixel unit of a second embodiment of the liquid crystal display device of the present invention, the present embodiment is substantially the same as the first embodiment, except that the reverse electrode of the liquid crystal display device 4 in the actual palladium mode 450 includes a reflective region 451 and a transmissive region 453, wherein the reflective region 451 is made of a metallic material, such as metallic aluminum, which has electrical conductivity and reflects a beam of light that is incident thereon, wherein the transmissive region 453 employs IT0 or indium oxide. An indium Zinc Oxide (IZO) material is produced, both of which have a light transmitting property, and a light beam emitted from a backlight 440 (not shown) is passed through and irradiated to the liquid crystal layer 430 (not shown). 6 1330292 Please refer to the fourth figure, which is a pixel unit of the third embodiment of the liquid crystal display device of the present invention. This embodiment is substantially the same as the first embodiment, except that the counter electrode 550 of the liquid crystal display device 500 in the present embodiment is completely made of a transparent conductive material, such as IT0 or [Z0, on which the layer is electrically conductive and semi-reflective. The film 52A, wherein the conductive semi-reflective film 520 is formed by sequentially interlacing two kinds of conductive materials such as IT〇 and titanium dioxide (Ti〇2), and may have a 7- to 9-layer structure. Since the ΙΤ0 and Ti〇2 are both transparent materials and have higher and lower refractive indices, respectively, the characteristic allows the conductive semi-reflective film 520 to have both reflection and penetration functions. The liquid crystal display device has a %, and a light beam emitted from the moon light source 540 (not shown) can be transmitted through the conductive half-reflex film 520 to the liquid crystal layer 53. The ambient light can also be reflected back to the liquid helium layer. 530 'provides a light source for the display. In the present embodiment, the conductive semi-reflective film can be made into a multi-layer structure to have better penetration and reflection optical properties. among them. The conductive semi-reflective film 52 can also be attached under the counter electrode 55A. In each of the above embodiments, the positive or negative liquid crystal molecules may be used (4), and the ratio of the area of the inverse pole to the anti-hearing domain may be arbitrarily adjusted as needed. According to the invention, the invention has indeed met the requirements of the invention patent, and the patent is filed according to law. The heart of the application should cover the scope of patent application in the town. [Simple description of the diagram] 7 1330292 The first figure is a schematic diagram of a prior art liquid crystal display device. The second drawing is a schematic diagram of a primary pixel unit of the first embodiment of the liquid crystal display device of the present invention. The third drawing is a schematic diagram of a primary pixel unit of the second embodiment of the liquid crystal display device of the present invention. The fourth figure is a schematic diagram of a primary pixel unit of the third embodiment of the liquid crystal display device of the present invention. [Main component symbol description] Liquid crystal display device 300, 500 Alignment layer 310 Liquid crystal layer 330, 530 Backlight 340 Reverse electrode 350, 450, 550 Conductive semi-reflective film 520 Insulating layer 370 Pixel electrode 390 Transparent substrate 301 ' 302 Penetration area 351 reflective area 353 8