200817768 P51950132TW 22001twf.doc/e 九、發明說明： 【發明所屬之技術領域】 本技藝適用於液晶顯示技藝，特別是半反射半穿透式液晶顯示 技藝。 ”'ν' 【先前技術】 圖1繪示一種傳統的半反射半穿透液晶顯示單元的結構 示意圖。參晒1，傳統的半反射半穿透液晶顯示單元具^上 層疊層1⑻、液晶層102、與下層疊層1〇4之三明治結構。 所述之上層疊層100，包含第一偏光層1〇6。又，第一基 材108具有像素電極，是安置於前述之第一偏光層1〇6下方。 第一配向層110是安置於前述之第一基材1〇8的下方。 所述之下層疊層104，具有反射區尺與穿透區τ，其中穿 透區T是由非反射區域所形成的穿透區域。所述之下層疊層 104包含：第二配向層112，安置於前述之反射區尺與穿透區 T。第二偏光層114安置於前述之第二配向層112的下方，且 延伸到反射區R與穿透區T。反射層116安置於前述之第二偏 光層114下方之反射區R内。苐二基材118具有像素電極， 且被安置於前述之反射層116下方之反射區R，以及第二偏光 層114下方之穿透區T。第三偏光層120，安置於前述之第二 基材118下方。 液晶單元1〇2是安置於前述之上層疊層1〇〇與下層疊層 104之間。 這種習知技藝的反射層只有製作在左邊的反射區r内， 在右邊穿透區τ是用在穿透式顯示功能，所以不能有反射層。 5 200817768 P51950132TW 22001twf.doc/e 如此、在反射區R與穿透區T接面處會形成一個階梯122。因 此’在反射層116上方的第二偏光層114，其在反射區R與穿 透區τ的厚度分佈是不一樣的，第二偏光層114在反射區r 的厚度較薄，在穿透區T的厚度較厚。並且在塗佈形成第二 偏光層114時，容易因為階梯m的存在而影響第二偏光層的 光學特性，導致顯示品質變差。 圖2A-2D習知技藝是圖丨習知技藝的「下層疊層」之製 ( 餘意圖。參閱圖2A，準備一片製作有電極之第二基材H 女置反光層116於第二基材118上方。參閱圖，進行敍 刻製程，將屬於穿透區T部份的反光層116移除，剩下反射區 R的反光層116。 參閱圖2c，形成第二偏光層114於反光層116上方的反 射區R内、以及第二基材118上方的穿透區丁内。來閱圖犯， 形成第三偏光層120於第二基材118下方，且形成第二配向層 112於第二偏光層114之上方。 C 如前面所描述，在反射層116上方的第二偏光層114，其 在反射區R與穿透區T的厚度分佈是不—樣的。第二偏光層 114在反射區R的厚度㈣，在穿透區T的厚度較厚。並且在 ^佈形成第二就層m時，容易因為階梯122的存在而影響 第二偏光層的光學特性，導致顯示品質變差。 【發明内容】 本發明提供-種半反射半穿透液晶顯科元，具有一圖 木化偏光層。其中在該顯示單元的基板内的圖案化偏光層，只 6 200817768 P51950132TW 22001twf.doc/e 位於反射區域。這獅結構可以提高半反射半穿紐晶顯系單 兀之牙透光線之強度，提高畫素之顯示亮度，同時簡化製稃。 $本發明提供-種半反射半穿透液晶顯示單元，包括〆上 層豐層、一液晶層、與一下層疊層之三明治結構。其中所述之 上層豐層，包含-第-偏光層;一第一基材，具有像素電極， ，置於所述之第-偏光層下方；_第—配向層，安置於所述之 第一基材下方。所述之下層疊層，預定有一反射區與一穿透 Γ:區，其中穿透區Τ是由非反射區域所形成的穿透區域。所述 之下層豐層包含·一第二配向層；一第二偏光層，安置於所述 之第二配向層下方，且在所述反射區内;一反射層，安置於所 述之第二偏光層下方；一第二基材，具有像素電極，安置於所 述反射層下方之所述反射區以及所述第二偏光層下方的所述 牙透區，一弟二偏光層，安置於所述之第二基材下方。 本發明又提供一種半反射半穿透液晶顯示單元，包括一 上層豐層、一液晶層、與一下層疊層之三明治結構。其中所述 之上層$層，包含··一第一偏光層;一第一基材，具有像素電 極，安置於所述之第一偏光層下方。所述之下層疊層，預定有 一反射區與一穿透區，其中穿透區τ是由非反射區域所形成 的穿透區域。所述之下層疊層包含：一第二偏光層，安置於所 述之反射區；一反射層，安置於所述之第二偏光層下方；一第 二基材，具有像素電極，安置於所述之反射層下方之所述反射 區與所述穿透區；一第三偏光層，安置於所述之第二基材下方。 依照本發明一實施例之半反射半穿透液晶顯示單元，例 如所述液晶層包含液晶分子與細微粒子。 7 200817768 P51950132TW 22001twf.doc/e 依照本發明-實施例之半反射半穿透液晶顯示單元，例 如所述之細微粒子，可以是選自於下述族群中的一種 族群是導電粒子、有機固體粒子、以及無機固體粒子。” 【實施方式】 口口於描述本發明之前，先探討如圖1的先前技藝的反射區反 之早兀運作。一般地、第一偏光層娜與第二偏光層114的偏 Γ 光性質為互補，也就是例如當第—偏光層為垂直偏光時，第二 偏光層為平行偏光。這裡_直偏光與平行偏光是械一參考 操=方向而定義。在穿透區τ之單元運作時，第一偏光層1〇6 與=三，綠I2。為互補，也就是#第—偏光層為垂直偏 光％’第二偏光層120為平行偏光。所以，第二偏光層114 之偏光特性與第三偏光層12〇是一樣的。 、正因為第二偏光層114之偏光特性與第三偏光層12〇是一 樣的情形，所以本發明認為在穿透區τ的第二偏光層114是可 I;=去除的，而不影響穿透區Τ之顯示功能。以下提出一些實 施例作為說明，但是本發明不受限於所舉實施例。 一。。圖3繪不依照本發明一實施例，一種半反射半穿透液晶顯 不單凡結構示意圖。於本發明實施例，在穿透區τ沒有第二 偏，層。參閱圖3，一種半反射半穿透液晶顯示單元，具有上 層受層200、液晶層2〇2、與下層疊層2〇4之三明治結構。 “上層豐層200包含第一偏光層206。第一基材208具有像 素電極’是安置於前述之第一偏光層施下方。第一配向層 21〇是安置於前述之第一基材2〇8下方。 200817768 P51950132TW 22001 twf.doc/e 下層豐層204具有反射區R與穿透區τ，包含第二配向層 212延伸於反射區R與穿透區τ。第二偏光層214是安置於前 述之第二配向層212下方，且是在反射區R内，而不延伸到 牙透區T。反射層216是安置於前述之第二偏光層214下方之 反射區R内。第二基材218，具有像素電極，是安置於前述之 反射層216下方之反射區R，以及第二配向層212下方的穿透 區T。第二偏光層220是安置於前述之第二基材218下方。 液晶單元202是安置於前述之上層疊層2〇〇與下層疊層 204之間。 圖4A-4C繪示一本發明實施例，是圖3的下層疊層2〇4 之製作方法示意圖。 參閱圖4A，提供製作有像素電極之第二基材218。反光 層216形成於前述之第二基材218上方◦參閱圖4β，形成第 二偏光層214於前述之反光層216上方。參閱圖4C，例如利 用蝕刻技術，定義第二偏光層214與反光層216,將屬於穿透 區T的部份移除，留下在反射區R内的第二偏光層214盥反 光層216。 、後續可以繼績形成如圖3所示的第二配向層212與第三偏 光層220。然而，第二配向層212與第三偏光層22〇不是唯一 的方式，於後述的另一實施例會繼續描述說明。 這裡a要注意的是，第二偏光層214僅被形成於反射區R ^ ’可以簡化製程。另外因為第二偏光層214沒有階梯結構， 光學特性較為穩定。又，在穿透區τ沒有第二偏光層叫， 並不會影響其操作。 200817768 P51950132TW 22001twf.doc/e 以下提出另一實施例。圖5繪示依照本發明實施例二， 另一種半反射半穿透液晶顯示單元結構示意圖。圖5之實施例 與圖3的差別為刪除了第一配向層與第二配向層。 在一些實施例中，其並不需要配向層。例如，液晶層内可 以添加細微粒子(fine particles)形成一液晶複合物。施加至 上下基材的電極層之電壓低於臨限值時，液晶複合物為光 學等向性的(optical isotropic)，此時液晶顯示裝置在相交偏 光片（cross polarizer)下可展示理想的暗狀態。所施加之 笔反專於或南於g品限值時，液晶複合物會因液晶分子之排 列的改變而經歷光學轉變（optical transiti〇n)而在相交偏光 片（cross polarizer)下形成亮狀態◦其中，細微粒子具有 不超過0·2 μιη的平均粒子直徑，其可為導電粒子、有機固 體粒子、無機固體粒子或其類似物。 參閱圖5,上層疊層200,包含第一偏光層206。第一基材 208 ’具有像素電極，是置於前述之第一偏光層2〇6下方。 下層疊層204’具有反射區R與穿透區τ，其包含第二偏 光層214，安置於前述之反射區R。反射層216安置於前述之 第二偏光層214下方。第二基材218，具有像素電極，是安置 於岫述之反射層216下方之反射區r，以及延伸到穿透區τ。 第三偏光層220安置於前述之第二基材218下方。 液晶單元202是安置於前述之上層疊層2⑻，與下層疊層 204,之間。 曰 前述描述揭示了本技藝之較佳實施例以及設計圖式，惟， 較佳實施例以及設計圖式僅是舉例說明，並非用於限制本技藝 10 200817768 P51950132TW 22001twf.doc/e 之權利範圍於此，凡是明#之技藝手段實 以下述之「申請專利顧」賴蓋之權利範圍^^、^是 脫離本技藝之精神而為申請人之權利範圍。、諸’均不 【圖式簡單說明】 =丨_-種魏的半反料穿觀晶縣單元的 不思圖。 圖2A_2D習知技藝是圖！習知技藝的「下層轟 程示意圖。 且曰 衣 圖3繪不依照本發明一實施例，一種半反射半穿透液晶顯 示單元結構示意圖。 圖4A-4C繪示一本發明實施例，是圖3的下層疊層204 之製作方法示意圖。 圖5繪示依照本發明實施例二，另一種半反射半穿透液晶 顯示單元結構示意圖。 【主要元件符號說明】 100、2⑻、200’ ：上層疊層 102、202 :液晶層 104、204、204,：下層疊層 106、206 :第一偏光層 108、208 :第一基材 110、210 :第一配向層 112、212 :第二配向層 114、214 :第二偏光層 11 200817768 P 5195 013 2TW 22001 twf.doc/e 116 、216 : 反射層 118 、218 ·· 第 二基材 120 、220 : 第. 三偏光層 122 :階梯 R ： 反射區 T ： 穿透區 12200817768 P51950132TW 22001twf.doc/e IX. Description of the Invention: [Technical Field of the Invention] The present technology is applicable to liquid crystal display technology, particularly semi-reflective semi-transmissive liquid crystal display technology. 1 ν [Previous Art] Fig. 1 is a schematic structural view of a conventional semi-reflective semi-transmissive liquid crystal display unit. The conventional semi-reflective semi-transmissive liquid crystal display unit has a laminated layer 1 (8) and a liquid crystal layer. 102, a sandwich structure with the lower layer stack 1 〇 4. The upper layer stack 100 includes a first polarizing layer 1 〇 6. Further, the first substrate 108 has a pixel electrode disposed on the first polarizing layer The first alignment layer 110 is disposed under the first substrate 1〇8. The lower layer 104 has a reflection area and a penetration area τ, wherein the penetration area T is a penetrating region formed by the non-reflective region. The lower layer stack 104 includes: a second alignment layer 112 disposed in the aforementioned reflective and penetrating regions T. The second polarizing layer 114 is disposed in the second alignment direction The layer 112 is below and extends to the reflective region R and the transmissive region T. The reflective layer 116 is disposed in the reflective region R below the second polarizing layer 114. The second substrate 118 has a pixel electrode and is disposed in the foregoing a reflective area R below the reflective layer 116, and below the second polarizing layer 114 The penetrating region T. The third polarizing layer 120 is disposed under the foregoing second substrate 118. The liquid crystal cell 1〇2 is disposed between the upper stacked layer 1〇〇 and the lower stacked layer 104. The reflective layer of the technique is only made in the reflection area r on the left side, and the penetration area τ on the right side is used in the transmissive display function, so there is no reflection layer. 5 200817768 P51950132TW 22001twf.doc/e So, in the reflection area R and A step 122 is formed at the junction T of the transmissive region. Therefore, the second polarizing layer 114 above the reflective layer 116 has a different thickness distribution between the reflective region R and the transmissive region τ, and the second polarizing layer 114 is different. The thickness of the reflective region r is thinner, and the thickness of the transparent region T is thicker. When the second polarizing layer 114 is formed, it is easy to affect the optical characteristics of the second polarizing layer due to the presence of the step m, resulting in display quality. 2A-2D The prior art is a system of the "lower layer" of the prior art. (Refer to FIG. 2A, preparing a second substrate H having an electrode and a reflective layer 116. Above the two substrates 118. Referring to the figure, the engraving process is carried out The reflective layer 116 of the portion of the transmissive region T is removed, leaving the reflective layer 116 of the reflective region R. Referring to FIG. 2c, the second polarizing layer 114 is formed in the reflective region R above the reflective layer 116, and the second substrate 118 In the upper penetrating zone, the third polarizing layer 120 is formed under the second substrate 118, and the second alignment layer 112 is formed above the second polarizing layer 114. C, as described above, The second polarizing layer 114 above the reflective layer 116 has a thickness distribution in the reflective region R and the transmissive region T. The thickness of the second polarizing layer 114 in the reflective region R (four), the thickness in the transmissive region T Thicker. Further, when the second layer m is formed, it is easy to affect the optical characteristics of the second polarizing layer due to the presence of the step 122, resulting in deterioration of display quality. SUMMARY OF THE INVENTION The present invention provides a semi-reflective semi-transmissive liquid crystal display unit having a patterned polarizing layer. Wherein the patterned polarizing layer in the substrate of the display unit is only 6 200817768 P51950132TW 22001twf.doc/e is located in the reflective area. This lion structure can improve the intensity of the translucent line of the semi-reflective and semi-necked single crystal, improve the display brightness of the pixels, and simplify the system. The present invention provides a semi-reflective transflective liquid crystal display unit comprising a top layer of a top layer, a liquid crystal layer, and a sandwich structure with a lower layer. Wherein the upper layer comprises a first-polarization layer; a first substrate having a pixel electrode disposed under the first-polarization layer; and a first alignment layer disposed on the first layer Below the substrate. The underlying layer is predetermined to have a reflective region and a penetrating region: wherein the penetrating region Τ is a penetrating region formed by the non-reflecting region. The underlying layer comprises a second alignment layer; a second polarizing layer disposed under the second alignment layer and in the reflective region; and a reflective layer disposed in the second a second substrate having a pixel electrode, the reflective region disposed under the reflective layer and the tooth-permeable region below the second polarizing layer, and a second polarizing layer disposed at the substrate Below the second substrate. The present invention further provides a transflective liquid crystal display unit comprising an upper layer, a liquid crystal layer, and a sandwich structure with the lower layer. The upper layer of the layer includes a first polarizing layer; a first substrate having a pixel electrode disposed under the first polarizing layer. The underlying layer is predetermined to have a reflective region and a penetrating region, wherein the penetrating region τ is a penetrating region formed by the non-reflective region. The underlying layer comprises: a second polarizing layer disposed in the reflective region; a reflective layer disposed under the second polarizing layer; and a second substrate having a pixel electrode disposed therein The reflective region under the reflective layer and the penetrating region; a third polarizing layer disposed under the second substrate. According to an embodiment of the present invention, a semi-reflective semi-transmissive liquid crystal display unit, for example, the liquid crystal layer contains liquid crystal molecules and fine particles. 7 200817768 P51950132TW 22001twf.doc/e A semi-reflective semi-transmissive liquid crystal display unit according to the present invention, for example, the fine particles may be one selected from the group consisting of conductive particles, organic solid particles And inorganic solid particles. [Embodiment] Before describing the present invention, it is first discussed that the reflection region of the prior art as in Fig. 1 operates earlier and earlier. Generally, the polarization properties of the first polarization layer and the second polarization layer 114 are complementary. For example, when the first polarizing layer is vertically polarized, the second polarizing layer is parallel polarized light. Here, the _straight polarized light and the parallel polarized light are defined by a reference operation direction. When the unit of the penetration region τ operates, A polarizing layer 1〇6 and =3, green I2 are complementary, that is, the #first-polarizing layer is vertical polarizing%', and the second polarizing layer 120 is parallel polarized light. Therefore, the polarizing characteristics of the second polarizing layer 114 and the third The polarizing layer 12 is the same. Because the polarization characteristic of the second polarizing layer 114 is the same as that of the third polarizing layer 12, the present invention considers that the second polarizing layer 114 in the transmissive region τ can be I; = removed, without affecting the display function of the penetrating zone. Some embodiments are described below as an illustration, but the invention is not limited to the embodiment. 1. Figure 3 is not an embodiment of the invention, Semi-reflective semi-transparent liquid crystal is not alone In the embodiment of the present invention, there is no second offset layer in the penetration region τ. Referring to FIG. 3, a semi-reflective semi-transmissive liquid crystal display unit has an upper layer 200, a liquid crystal layer 2, and a lower layer. The sandwich structure of layer 2〇4. The upper layer 200 includes a first polarizing layer 206. The first substrate 208 has a pixel electrode ' disposed under the first polarizing layer described above. The first alignment layer 21 is disposed under the aforementioned first substrate 2〇8. 200817768 P51950132TW 22001 twf.doc/e The lower layer 204 has a reflective region R and a penetrating region τ, and includes a second alignment layer 212 extending over the reflective region R and the penetrating region τ. The second polarizing layer 214 is disposed under the second alignment layer 212 described above and is within the reflective region R without extending to the tooth-permeable region T. The reflective layer 216 is disposed in the reflective region R below the second polarizing layer 214. The second substrate 218, having a pixel electrode, is a reflective region R disposed under the aforementioned reflective layer 216, and a transmissive region T below the second alignment layer 212. The second polarizing layer 220 is disposed under the second substrate 218 described above. The liquid crystal cell 202 is disposed between the aforementioned overlying layer 2 〇〇 and the lower layer stack 204. 4A-4C are schematic views showing a method of fabricating the lower layer stack 2〇4 of FIG. 3 according to an embodiment of the invention. Referring to Figure 4A, a second substrate 218 having pixel electrodes is provided. The reflective layer 216 is formed over the second substrate 218 described above. Referring to Figure 4, a second polarizing layer 214 is formed over the reflective layer 216. Referring to FIG. 4C, the second polarizing layer 214 and the light reflecting layer 216 are defined, for example, by etching, and the portion belonging to the transmissive region T is removed, leaving the second polarizing layer 214 and the reflective layer 216 in the reflective region R. The second alignment layer 212 and the third polarizing layer 220 as shown in FIG. 3 can be formed in succession. However, the second alignment layer 212 and the third polarizing layer 22 are not the only way, and the description will be continued in another embodiment to be described later. Here, it should be noted that the second polarizing layer 214 is formed only in the reflective region R^' to simplify the process. In addition, since the second polarizing layer 214 has no step structure, the optical characteristics are relatively stable. Moreover, there is no second polarizing layer called in the penetration zone τ, and its operation is not affected. 200817768 P51950132TW 22001twf.doc/e Another embodiment is presented below. FIG. 5 is a schematic structural view of another transflective liquid crystal display unit according to Embodiment 2 of the present invention. The embodiment of Fig. 5 differs from that of Fig. 3 in that the first alignment layer and the second alignment layer are deleted. In some embodiments, it does not require an alignment layer. For example, fine particles may be added to the liquid crystal layer to form a liquid crystal composite. When the voltage applied to the electrode layer of the upper and lower substrates is lower than the threshold value, the liquid crystal composite is optical isotropic, and the liquid crystal display device can exhibit ideal darkness under the intersect polarizer (cross polarizer). status. When the applied pen is reversed or is greater than the g-product limit, the liquid crystal composite undergoes optical transition due to the change of the arrangement of the liquid crystal molecules and forms a bright state under the intersect polarizer (cross polarizer). The fine particles have an average particle diameter of not more than 0.2 μm, which may be conductive particles, organic solid particles, inorganic solid particles or the like. Referring to FIG. 5, the upper layer stack 200 includes a first polarizing layer 206. The first substrate 208' has a pixel electrode and is disposed under the first polarizing layer 2?6. The lower layer stack 204' has a reflective region R and a penetrating region τ, which includes a second polarizing layer 214 disposed in the aforementioned reflective region R. The reflective layer 216 is disposed under the aforementioned second polarizing layer 214. The second substrate 218, having a pixel electrode, is a reflective region r disposed below the reflective layer 216, and extends to the penetrating region τ. The third polarizing layer 220 is disposed under the second substrate 218 described above. The liquid crystal cell 202 is disposed between the above-mentioned overlying layer 2 (8) and the lower layered layer 204. The foregoing description discloses the preferred embodiments and the drawings of the preferred embodiments of the present invention, and the preferred embodiments and the drawings are merely illustrative and not intended to limit the scope of the teachings of the prior art 10 200817768 P51950132TW 22001twf.doc/e Therefore, the scope of the rights of the applicants is the scope of the rights of the applicants. , ‘No’ [Simple description of the schema] = 丨 _ - Wei Wei's half-reflection through the view of the Jingjing County unit. 2A_2D is a skill figure! FIG. 4A-4C is a schematic diagram showing the structure of a semi-reflective and semi-transparent liquid crystal display unit. FIG. 4A-4C is a schematic view of an embodiment of the present invention. FIG. FIG. 5 is a schematic diagram showing the structure of another semi-reflective semi-transmissive liquid crystal display unit according to Embodiment 2 of the present invention. [Description of Main Components] 100, 2 (8), 200': Cascading Layers 102, 202: liquid crystal layers 104, 204, 204, lower laminate layers 106, 206: first polarizing layers 108, 208: first substrate 110, 210: first alignment layer 112, 212: second alignment layer 114 214: second polarizing layer 11 200817768 P 5195 013 2TW 22001 twf.doc/e 116 , 216 : reflective layer 118 , 218 · · second substrate 120 , 220 : third polarizing layer 122 : step R : reflective region T : penetration zone 12