201202783 六、發明說明： 【發明所屬之技術領域】 本發明關於降低因傾斜面上之入射光洩漏（起因於左 右兩側同時入射的光）而產生之申擾的偏光眼鏡。 5 【先前技術】 由於人眼水平分隔約65mm (瞠孔間距離），每一眼的 視界稍微不同。證實的方法是輪流閉上一眼而以另一眼看 10 物體時，看到的影像彼此有些不同。 运稱為‘雙眼差異’，表示左右眼所見之物體的影像位 置差異，導因於眼睛的水平分隔。大腦處理雙眼差異來感 受立體影像》這是立體影像重製的原理。 立體影像顯示器在上偏光板的偏光片上有圖案化λ/4 15 相差層，發出圓形偏振光。圓形偏振光經由一副偏光眼鏡 轉換成線性偏振光，而感受立體影像。偏光眼鏡在左右側 分別由λ/4相差層和偏光片組成。 入射（投射）在偏光眼鏡正面上的左右圓形偏振光轉 換成線性偏振光，因此左右眼可辨識分隔影像。然而，在 非垂直方向入射到偏光眼鏡正面的左右圓形偏振光轉變 成橢圓形偏振光。在此情形，左右兩眼可看到右橢圓形偏 振光或左橢圓形偏振光。這稱為‘漏光，。此種漏光會造成 串擾問題’也就是說，影像分隔成左右影像。 3 25 201202783 【發明内容】 因此’本發明的目標是提供改善（或降低）左右光同 時投射到任一鏡片所造成之漏光的偏光眼鏡，包含將在非 垂直方向入射到眼鏡正面的摘圓形偏振光轉換成線性偏 5 振光。 本發明另一目標是提供可改善上述漏光所造成之串 擾的偏光眼鏡。 為達成上述目標，提供一種偏光眼鏡，每一鏡片包括 :將圓形偏振光轉換成線性偏振光的λ/4相差層；將未 10 被λ/4相差層轉換的光轉換成線性偏振光的次相差層；及 使投射自次相差層的光通過的偏光片，其中次相差層的光 學性質為-〇·5<ΝΖ<1 和 50nm<RO<300nm。 依據本發明’次相差層的光學性質為〇=ΝΖ<1和 100nm<R〇<250nm。 15 此外’次相差層的慢軸可平行或垂直於偏光片的透射 軸。 λ/4相差層最好由液晶層或膜拉伸而形成。 液晶層最好包含反應型液晶（reactiVe mesogen，RM) ο '° 偏光片最好具有附在偏光片任一側的透明保護膜。 本發明的偏光眼鏡可降低在眼鏡正面之非垂直方向 所接收之影像訊號所造成的串擾，因此產生清楚的立體影 像。 此外’依據本發明’在可見角度範圍（在左右約9〇。 4 201202783 在上下方向’力45 )入射在眼鏡正面和傾斜面上的圓形 偏振光可轉換成線性偏振光，藉以改善串擾問題。所以， 相較於傳統技術，可表現具有優異差別的立體影像。 5 【實施方式】 本發明提供偏光眼鏡，每一镑g 常鏡片包括.將圓形偏振光 轉換成線性偏振光的λ/4相差層；將未被λ/4相差層轉換 的光轉換成線性偏振光的次相差層；及使投射自次相差 1〇 層的光通過的偏光片，以將在眼鏡正面之非垂直方向入射 的橢圓形偏振光轉換成線性偏振光，藉以改善漏光所引起 的串擾（左右偏振光同時投射到任一鏡片 下文中，配合附圖來詳述本發明。 本發明的偏光眼鏡包括將圓形偏振光轉換成線性偏 15 振光的λ/4相差層；將未被λ/4相差層轉換的光轉換成線 性偏振光的次相差層；及使投射自次相差層的光通過的偏 光片。 λ/4相差層將入射光（具有九）的相位延遲1/4波長， 再將入射在偏光眼鏡的圓形偏振光轉換成線性偏振光。 20 λ/4相差層可為液晶塗布所形成的λ/4液晶塗層或膜 拉伸所形成的λ/4相差膜。 液晶塗層具有光學異向性’可使用熱或光交聯性的液 晶化合物來形成。此種液晶化合物的實例可為反應型液晶 (reactive mesogen，RM)。RM 可包含 Information Display Vol. 1〇，No. 1 (“Recent research trends on RM”）文中所知 5 25 201202783 的特殊材料。 此種RM稱為具有液晶相的單體分子，含有可與液晶 聚合的終端基。RM聚合可產生交聯聚合物網路，並維持 液晶定向。當冷卻RM分子低於澄清點時，相較於使用具 5 有與RM相同之結構的液晶聚合物，可得到改善液晶相之 相當低黏性之配向的大面積領域。 所形成的λΜ液晶塗層可具有固體薄膜形式，因此呈 現熱或機械安定，同時仍保持液晶的光學異向性或介電性 10 15 20 λ/4液晶塗層可將含有RM的液晶層組分直接塗在次 相差層來製成。 λ/4液晶塗層可將透明保護膜經由任何已知黏著劑黏 在次相差層並將含有RM的液晶層組分直接塗在黏住的透 明保護膜來製成。 然而，此處所用的塗布方法未特別限制，可包含旋轉 塗布、滾壓塗布、點膠塗布、凹版塗布等等。溶劑的種類 和/或量取決於塗布製程。 λ/4液晶塗層可將含有液晶層組分的rm塗在基板再 將偏振的UV、偏振的電磁波等等照到塗布的基板 而製成。 . 1匕 膜層敢好是 狀取取乃凌或擠出成型方法 “的膜在拉伸而製成。拉伸可包含：在機械流動方向 二：方向）的縱向拉伸；在垂直於機械流動方向之方向 向’ TD)的橫向拉伸（例如拉幅拉伸在助和⑺ 6 201202783 同時拉伸的雙軸配向。詳言之，使用傾斜拉伸膜較佳。 左右λ/4相差層的慢軸對偏光片透射軸可分別有牦c 和-45°角。 次相差層可將未被λ/4相差層轉換的光轉換成線性偏 振光，因此降低串擾。詳言<，入射在偏光眼鏡斜面的圓 形偏振光可在通過λ/4相差層時轉換成橢圓形偏振光，然 後，此種橢圓形偏振光會造成串擾。依據本發明，使用具 有特殊光學性質的次相差層，通過λ/4相差層的橢圓形偏 振光可成功轉換成線性偏振光。 在此情形，次相差層的折射率比ΝΖ在以下等式i為 -〇.5<ΝΖ<1，共面延遲R〇在以下等式2為50nm<R〇<3〇〇nm 。考慮各種膜形成製程和/或材料的容易選擇，折射率比 NZ為〇=ΝΖ<1較佳。考慮在上述所界定之折射率比的相差 補償，共面延遲RO為l〇〇nm=R〇=2〇〇nm較佳。 等式1201202783 VI. Description of the Invention: [Technical Field] The present invention relates to polarized glasses which reduce the interference caused by incident light leakage on the inclined surface (light incident from both sides on the left and right sides). 5 [Prior Art] Since the human eye is horizontally separated by about 65 mm (distance between the pupils), the visual field of each eye is slightly different. The method of confirmation is that when the eyes are closed and the other object is seen, the images seen are somewhat different from each other. Called ‘binocular difference’, it means that the image position difference of the objects seen by the left and right eyes is caused by the horizontal separation of the eyes. The brain deals with the difference between the two eyes to feel the stereoscopic image. This is the principle of stereoscopic image reproduction. The stereoscopic image display has a patterned λ/4 15 phase difference layer on the polarizer of the upper polarizing plate to emit circularly polarized light. The circularly polarized light is converted into linearly polarized light via a pair of polarized glasses to experience a stereoscopic image. The polarized glasses are composed of a λ/4 phase difference layer and a polarizer on the left and right sides, respectively. The left and right circularly polarized light incident (projected) on the front surface of the polarized glasses is converted into linearly polarized light, so that the left and right eyes can recognize the separated image. However, the left and right circularly polarized light incident on the front surface of the polarizing glasses in a non-perpendicular direction is converted into elliptical polarized light. In this case, the left and right eyes can see the right elliptical polarized light or the left elliptical polarized light. This is called ‘light leakage. This light leakage can cause crosstalk problems. That is, the image is separated into left and right images. 3 25 201202783 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide polarized glasses that improve (or reduce) light leakage caused by left and right light while being projected onto either lens, including a rounded shape that will be incident on the front side of the lens in a non-perpendicular direction. The polarized light is converted into a linearly polarized light. Another object of the present invention is to provide polarized glasses which can improve the crosstalk caused by the above light leakage. In order to achieve the above object, a polarizing glasses are provided, each of which includes: a λ/4 phase difference layer that converts circularly polarized light into linearly polarized light; and converts light that is not converted by the λ/4 phase difference layer into linearly polarized light. a second phase difference layer; and a polarizer for passing light projected from the second phase difference layer, wherein the optical properties of the second phase difference layer are - 〇 · 5 < ΝΖ < 1 and 50 nm < RO < 300 nm. The optical properties of the sub-phase difference layer according to the present invention are 〇 = ΝΖ < 1 and 100 nm < R 〇 < 250 nm. 15 Further, the slow axis of the 'secondary phase difference layer' may be parallel or perpendicular to the transmission axis of the polarizer. The λ/4 phase difference layer is preferably formed by stretching a liquid crystal layer or a film. The liquid crystal layer preferably contains a reactive liquid crystal (RM). The polarizer preferably has a transparent protective film attached to either side of the polarizer. The polarized glasses of the present invention can reduce crosstalk caused by image signals received in a non-perpendicular direction on the front side of the glasses, thereby producing a clear stereoscopic image. In addition, according to the present invention, circularly polarized light incident on the front and inclined faces of the glasses can be converted into linearly polarized light in a visible angle range (about 9 左右. 4 201202783 in the up and down direction, force 45), thereby improving the crosstalk problem. . Therefore, stereoscopic images with excellent differences can be expressed compared to conventional techniques. [Embodiment] The present invention provides polarized glasses, each of which includes a λ/4 phase difference layer that converts circularly polarized light into linearly polarized light, and converts light that is not converted by the λ/4 phase difference layer into linear a secondary phase difference layer of polarized light; and a polarizer that passes light that is projected from the second phase difference layer to convert linearly polarized light incident in a non-perpendicular direction of the front surface of the lens into linearly polarized light, thereby improving light leakage. Crosstalk (left and right polarized light is simultaneously projected into either lens hereinafter, and the present invention is described in detail with reference to the accompanying drawings. The polarized glasses of the present invention include a λ/4 phase difference layer that converts circularly polarized light into linearly polarized light; The light converted by the λ/4 phase difference layer is converted into a secondary phase difference layer of linearly polarized light; and a polarizer that passes light projected from the secondary phase difference layer. The λ/4 phase difference layer delays the phase of the incident light (having nine) by one. 4 wavelength, then convert the circularly polarized light incident on the polarized glasses into linearly polarized light. 20 λ/4 phase difference layer can be the λ/4 phase difference formed by the λ/4 liquid crystal coating or film stretching formed by liquid crystal coating. Film. Liquid crystal coating has optical contrast The directionality can be formed using a liquid crystal compound which is thermally or photocrosslinkable. An example of such a liquid crystal compound may be a reactive mesogen (RM). RM may include Information Display Vol. 1〇, No. 1 (" Recent research trends on RM") Special materials known in the text 5 25 201202783. This RM is called a monomer molecule with a liquid crystal phase and contains a terminal group which can be polymerized with liquid crystal. RM polymerization can produce a crosslinked polymer network. And maintaining the orientation of the liquid crystal. When the cooling RM molecule is lower than the clearing point, a large-area field which improves the alignment of the liquid crystal phase with a relatively low viscosity can be obtained as compared with the liquid crystal polymer having the same structure as that of the RM. The formed λΜ liquid crystal coating layer may have a solid film form and thus exhibit thermal or mechanical stability while still maintaining optical anisotropy or dielectric properties of the liquid crystal. 10 15 20 λ/4 liquid crystal coating layer may contain liquid crystal layer components containing RM It is directly coated on the second phase difference layer. The λ/4 liquid crystal coating can adhere the transparent protective film to the sub-phase difference layer via any known adhesive and directly apply the RM-containing liquid crystal layer component to the transparent protection of the adhesion. However, the coating method used herein is not particularly limited and may include spin coating, roll coating, dispensing coating, gravure coating, etc. The kind and/or amount of the solvent depends on the coating process. The coating can be made by coating the rm containing the composition of the liquid crystal layer on the substrate and then irradiating the polarized UV, polarized electromagnetic wave or the like onto the coated substrate. 1 匕 匕 是 是 乃 乃 乃 乃 或 挤出The molding method "film is made by stretching. The stretching may include: longitudinal stretching in the mechanical flow direction two: direction"; transverse stretching in the direction perpendicular to the mechanical flow direction to 'TD" (for example, tentering) Stretching at the simultaneous (7) 6 201202783 simultaneous stretching of the biaxial alignment. In particular, it is preferred to use an obliquely stretched film. The slow axis of the left and right λ/4 phase difference layers may have 牦c and -45° angles respectively to the transmission axis of the polarizer. The secondary phase difference layer converts light that is not converted by the λ/4 phase difference layer into linearly polarized light, thus reducing crosstalk. In detail, the circularly polarized light incident on the slope of the polarizing glasses can be converted into elliptical polarized light when passing through the λ/4 phase difference layer, and then such elliptical polarized light causes crosstalk. According to the present invention, the elliptical polarized light passing through the λ/4 phase difference layer can be successfully converted into linearly polarized light by using a secondary phase difference layer having a special optical property. In this case, the refractive index ratio ΝΖ of the secondary phase difference layer is 〇.5 < ΝΖ <1, and the coplanar retardation R 〇 is 50 nm < R 〇 < 3 〇〇 nm in the following Equation 2. Considering the ease of selection of various film forming processes and/or materials, the refractive index ratio NZ is preferably 〇 = ΝΖ < Considering the phase difference compensation of the refractive index ratio defined above, the coplanar retardation RO is preferably 1 〇〇 nm = R 〇 = 2 〇〇 nm. Equation 1
Nz = (Nx - Nz) / (Nx - Ny) =Rth / RO + 0.5 (其中Nx和Ny是在共面方向振盪的光折射率且 Nx=Ny ’ Nz是在相差層厚度方向振盪的光折射率比，Rth 疋厚度延遲）。 等式2 RO = (Nx - Ny) χ d (其中Nx和Ny是在相差層共面方向振盪的光折射率 201202783 且Nx=Ny，d是相差層厚度）β 若次相差層折射率比ΝΖ超過上述範圍，則串擾取決 於先入射方向而發生的範圍會增大。另—方面當共面延 遲RO超過上述範圍時，難以確保相差均勻。田 偏光眼鏡次相差層慢轴可平行（圖1(a))或垂直（圖 1(b))於偏光片透射軸。 次相差層可由液晶塗布或膜拉伸形成，由膜拉伸形成 較佳。 10 15 此處所用的偏光片可為業界常用的，未特別限制，只 要能偏振即可。詳言之，可使用包含二色性化合物、線拇 、奈米碳管等等的拉伸聚乙烯醇膜。 其中，容易處理成膜形式的拉伸偏光片可包括具有吸 附和配向之一色性染料的拉伸pVA膜。用於偏光片的PVA 樹脂可由聚乙酸乙烯酯樹脂皂化來製備。 聚乙酸乙烯酯樹脂可包含，例如：做為乙酸乙烯酯均 聚物的聚乙酸乙烯酯、乙酸乙烯酯和能與乙酸乙烯酯共聚 之任何其他單體的共聚物等等。能與乙酸乙烯酯共聚的單 體可選自：不飽和羧酸單體、不飽和項酸單體、烯烴、乙 稀醋單體、具有銨基的丙烯醢胺單體。此外，聚乙烯醇樹 月a可為改質樹脂，例如，諸如聚乙稀醇缩甲路或聚乙烯醇 缩乙醛之醛所改質的樹脂。聚乙烯醇樹脂皂化程度可為85 至100 mol%，至少98 mol%較佳。聚乙烯醇樹脂聚合程度 可為 1，000 至 1〇,〇〇〇，1，500 至 5,000 較佳。 透明保護膜可黏在偏光片的至少一側。例如，如圖2 20 201202783 ’每一偏光鏡片可具有λ/4相差層、次相差層、偏光片、 ' 透明保護膜。 透明保護膜可為具有優良透明性、機械強度、熱安定 性、防水性、同向性的膜。詳言之，透明保護可選自熱塑 5 性樹脂，例如聚酯樹脂，如聚乙烯對苯二曱酸酯、聚乙烯 間苯二甲酸酯、聚乙烯鄰苯二甲酸酯、聚丁烯對苯二曱酸 酯，纖維素樹脂，如二乙酸纖維素和三乙酸纖維素；聚碳 酸酯樹脂；丙烯酸樹脂，如聚曱基丙烯酸甲酯和聚乙基丙 烯酸曱酯；苯乙烯樹脂，如聚笨乙烯和丙烯腈·苯乙烯共聚 1〇 物，聚烯烴樹脂，如聚乙烯、聚丙烯、具有環形或降冰片 烯結構的聚烯烴；烯烴樹脂，如乙烯_丙烯共聚物；氣乙烯 樹脂；聚亞醯胺樹脂，如尼龍和芳香聚亞醯胺；亞醯胺樹 脂；聚醚砜樹脂；砜樹脂；聚醚酮樹脂；聚苯硫.醚樹脂； 乙烯醇樹脂，二氣乙烯樹脂；乙烯醇縮丁醛樹脂；烯丙基 15化樹脂；聚曱醛樹脂；環氧樹脂，膜也可使用熱塑性樹脂 的混合來組成。再者，膜可使用丙烯酸曱酯、聚氨酯、環 氧、矽樹脂的熱固性樹脂或紫外光固化樹脂來形成。 透明保護膜的熱塑性樹脂含量為5〇至1〇〇 wt%，％ 至99 wt%較佳，60至9Swt%更佳，7〇至97糾％最佳。當 2〇含量小於5〇wt%時，不能充分實現熱塑性樹脂的獨特高透 射比。 此種透明保護膜可進-步含有至少一種添加物。添加 物的實例可包含UV吸收劑、抗氧化劑、潤滑劑、塑化劑 、脫模劑、防污劑、阻燃劑、成核齊,卜抗靜電齊卜顏料、 201202783 著色劑等等。 下文中’參照實例和比較實例來說明較佳實施例以更 瞭解本發明。然而，熟悉此技藝者知道，此種實施例只是 說明之用’可做各種修改和改變而不悖離申請專利範圍所 界疋之本發明的範嘴和精神，此種修改和改變包含在申請 專利範圍所界定的本發明中。 實例1 如圖1(a)’製造偏光眼鏡。詳言之，每一偏光鏡片包 括.將圓形偏振光轉換成線性偏振光的λ/4相差層；將未 被λ/4相差層轉換的光轉換成線性偏振光的次相差層；及 使投射自次相差層的光通過的偏光片。 次相差層使用之拉伸膜的折射率比ΝΖ為0.5，共面延 遲RO為20〇nm。λ/4相差層是將反應型液晶（reactive mesogen，RM)溶液（Merck Co,，RMS 03-013)塗在次相 差層來製備。 附在每一偏光鏡片左右側之λ/4相差層的慢軸分別在 順時鐘和反時鐘方向成45。。此外，次相差層慢軸平行於 偏光片吸收軸。 圖3呈現在所有方向入射至偏光眼鏡正面的圓形偏振 光通過偏光眼鏡後在黑條件下所測量之光的光譜亮度透 射比。此處，使用約550nm之短波長的入射光。超過2% 透射比的區域以紅色代表，相當低的透射比以藍色呈現。 如圖3,確認在垂直於偏光眼鏡正面之方向45。斜率 201202783 内的區域（看其正面時在上下方向的可見角度）呈現藍色 ’具有低透射比。低透射比意味圓形偏振光轉換成線性偏 振光，而防止串擾。 5 實例2 以實例1所述的相同程序來製造偏光眼鏡’除了三乙 酸纖維素（TAC)膜附在正對觀看者之偏光片的一側，如 圖2 〇 在所有方向入射至偏光眼鏡正面的圓形偏振光通過 10 偏光眼鏡後在黑條件下所測量之光的光譜亮度透射比與 圖3大致相同。 實例3 以實例1所述的相同程序來製造偏光眼鏡，除了使用 15之次相差層的折射率比Nz為〇’共面延遲R0為100nm 〇 圖4呈現在所有方向入射至偏光眼鏡正面的圓形偏振 光通過偏光眼鏡後在黑條件下所測量之光的光譜亮度透 射比，從圖確認不發生漏光，因此防止串擾。 20 實例4 以實例1所述的相同程麻办**1 J枉序來製造偏光眼鏡，除了使用 之次相差層的折射率比NZ為n t 句0.5 ’共面延遲R〇為l〇〇nm 11 201202783 圖5呈現在所有方向入射至偏光眼鏡正面的圓形偏振 光通過偏光眼鏡後在黑條件下所測量之光的光譜亮度透 射比，從圖確認不發生漏光，因此防止串擾》 5 實例5 以實例1所述的相同程序來製造偏光眼鏡，除了使用 之次相差層的折射率比NZ為-0.5，共面延遲RO為250nm 〇 圖6呈現在所有方向入射至偏光眼鏡正面的圓形偏振 光通過偏光眼鏡後在黑條件下所測量之光的光譜亮度透 射比，從圖確認不發生漏光，因此防止串擾。 比較實例1 以實例1所述的相同程序來製造偏光眼鏡，除了省 15 略次相差層。 圖7呈現在所有方向入射至偏光眼鏡正面的圓形偏振 光通過偏光眼鏡後在黑條件下所測量之光的光譜亮度透 射比，從圖可看到發生漏光，造成串擾。 20 比較實例2 以實例1所述的相同程序來製造偏光眼鏡，除了使用 之次相差層的折射率比NZ為-0.5，共面延遲RO為300nm 〇 圖8呈現在所有方向入射至偏光眼鏡正面的圓形偏振 201202783 光通過偏光眼鏡後在黑條件下所測量之 射比’從圖可看到發生漏光，造成串擾。 射比， 之光的光譜亮度透 比較實例3 以實例1所述的相同裎床氺制：生你+ ^Nz = (Nx - Nz) / (Nx - Ny) = Rth / RO + 0.5 (where Nx and Ny are the refractive indices of light oscillating in the coplanar direction and Nx = Ny ' Nz is the light refraction oscillating in the thickness direction of the phase difference layer Rate ratio, Rth 疋 thickness delay). Equation 2 RO = (Nx - Ny) χ d (where Nx and Ny are the refractive indices of the light oscillating in the coplanar direction of the phase difference layer 201202783 and Nx=Ny, d is the thickness of the phase difference layer) β If the refractive index ratio of the phase difference layer is ΝΖ Above the above range, the range in which crosstalk occurs depending on the first incident direction increases. On the other hand, when the coplanar delay RO exceeds the above range, it is difficult to ensure uniformity of the phase difference. The slow axis of the phase difference layer of the polarized glasses can be parallel (Fig. 1(a)) or vertical (Fig. 1(b)) on the transmission axis of the polarizer. The secondary phase difference layer may be formed by liquid crystal coating or film stretching, and is preferably formed by film stretching. 10 15 The polarizer used here can be commonly used in the industry, and is not particularly limited as long as it can be polarized. In particular, a stretched polyvinyl alcohol film comprising a dichroic compound, a wire thumb, a carbon nanotube or the like can be used. Among them, the stretched polarizer which is easy to handle in the form of a film formation may include a stretched pVA film having an absorbing and aligning one-color dye. The PVA resin used for the polarizer can be prepared by saponification of a polyvinyl acetate resin. The polyvinyl acetate resin may contain, for example, a copolymer of polyvinyl acetate, vinyl acetate, and any other monomer copolymerizable with vinyl acetate as a vinyl acetate homopolymer. The monomer copolymerizable with the vinyl acetate may be selected from the group consisting of an unsaturated carboxylic acid monomer, an unsaturated acid monomer, an olefin, an ethylene vine monomer, and an acrylamide monomer having an ammonium group. Further, the polyvinyl alcohol tree may be a modified resin such as a resin modified with an aldehyde such as polyethylene glycol or polyvinyl acetal. The polyvinyl alcohol resin may have a degree of saponification of from 85 to 100 mol%, preferably at least 98 mol%. The polyvinyl alcohol resin may be polymerized to a degree of from 1,000 to 1 Torr, preferably from 1,500 to 5,000. The transparent protective film can be adhered to at least one side of the polarizer. For example, as shown in Fig. 2 20 201202783 'Each polarizing lens may have a λ/4 phase difference layer, a second phase difference layer, a polarizer, a 'transparent protective film. The transparent protective film may be a film having excellent transparency, mechanical strength, thermal stability, water repellency, and omnidirectionality. In particular, the transparent protection may be selected from thermoplastic 5-based resins such as polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene phthalate, polybutylene. Ethylene terephthalate, cellulose resin such as cellulose diacetate and cellulose triacetate; polycarbonate resin; acrylic resin such as polymethyl methacrylate and polyethyl methacrylate; styrene resin, For example, polystyrene and acrylonitrile-styrene copolymer, polyolefin resin, such as polyethylene, polypropylene, polyolefin with ring or norbornene structure; olefin resin, such as ethylene-propylene copolymer; gas vinyl resin Polyimide resin, such as nylon and aromatic polyamidamine; sulfhydryl resin; polyether sulfone resin; sulfone resin; polyether ketone resin; polyphenylene sulfide resin; vinyl alcohol resin, diethylene vinyl resin; Vinyl butyral resin; allyl 15 resin; polyacetal resin; epoxy resin, film can also be composed of a mixture of thermoplastic resins. Further, the film may be formed using a thermosetting resin of acrylate, urethane, epoxy, oxime resin or an ultraviolet curable resin. The transparent protective film has a thermoplastic resin content of from 5 Å to 1% by weight, preferably from 99% to 99% by weight, more preferably from 60 to 9% by weight, and most preferably from 7 to 97%. When the content of 2 Å is less than 5% by weight, the unique high transmittance of the thermoplastic resin cannot be sufficiently achieved. Such a transparent protective film may further contain at least one additive. Examples of the additive may include a UV absorber, an antioxidant, a lubricant, a plasticizer, a mold release agent, an antifouling agent, a flame retardant, a nucleation, an antistatic syrup pigment, a 201202783 colorant, and the like. The preferred embodiments are described below with reference to examples and comparative examples to better understand the present invention. However, it is to be understood by those skilled in the art that the present invention is to be construed as illustrative and not limited by the scope of the invention. The invention is defined by the scope of the patent. Example 1 Polarized glasses were produced as in Figure 1 (a)'. In detail, each of the polarizing lenses includes: a λ/4 phase difference layer that converts circularly polarized light into linearly polarized light; converts light that is not converted by the λ/4 phase difference layer into a secondary phase difference layer of linearly polarized light; A polarizer that projects light from the secondary phase difference layer. The stretched film used in the second phase difference layer had a refractive index ratio ΝΖ of 0.5 and a coplanar retardation RO of 20 〇 nm. The λ/4 phase difference layer was prepared by applying a reactive mesogen (RM) solution (Merck Co, RMS 03-013) to the secondary phase difference layer. The slow axes of the λ/4 phase difference layers attached to the left and right sides of each polarizing lens are 45 in the clockwise and counterclockwise directions, respectively. . In addition, the slow axis of the secondary phase difference layer is parallel to the absorption axis of the polarizer. Fig. 3 is a graph showing the spectral luminance transmittance of light measured under black conditions after circularly polarized light incident on the front surface of the polarizing glasses in all directions passes through the polarizing glasses. Here, incident light of a short wavelength of about 550 nm is used. Areas with more than 2% transmittance are represented by red, and relatively low transmittances are shown in blue. As shown in Fig. 3, it is confirmed in a direction 45 perpendicular to the front surface of the polarized glasses. The area within the slope 201202783 (the visible angle in the up and down direction when looking at the front side) appears blue with a low transmittance. Low transmittance means that circularly polarized light is converted into linearly polarized light while preventing crosstalk. 5 Example 2 Polarized glasses were fabricated in the same procedure as described in Example 1 except that the cellulose triacetate (TAC) film was attached to the side of the polarizer facing the viewer, as shown in Figure 2, which was incident on the front side of the polarizing glasses in all directions. The spectral brightness transmittance of the light measured by the circularly polarized light passing through the 10 polarized glasses under black conditions is substantially the same as that of FIG. Example 3 Polarized spectacles were fabricated in the same procedure as described in Example 1, except that the refractive index ratio Nz of the phase difference layer of 15 was 〇' coplanar retardation R0 was 100 nm. FIG. 4 presents a circle incident on the front side of the polarizing glasses in all directions. The spectral luminance transmittance of the light measured by the polarized light after passing through the polarized glasses under black conditions is confirmed from the figure to prevent light leakage, thereby preventing crosstalk. 20 Example 4 Polarized glasses were fabricated by the same procedure as described in Example 1, except that the refractive index ratio of the second phase difference layer was nt nt. 0.5 'coplanar retardation R〇 was l〇〇nm 11 201202783 Figure 5 shows the spectral brightness transmittance of light measured under black conditions after circular polarized light incident on the front side of polarized glasses in all directions passes through polarized glasses, confirming that no light leakage occurs, thus preventing crosstalk. 5 Example 5 The polarized glasses were fabricated in the same procedure as described in Example 1, except that the retardation layer used had a refractive index ratio NZ of -0.5 and a coplanar retardation RO of 250 nm. Figure 6 shows circular polarization incident on the front side of the polarizing glasses in all directions. The spectral brightness transmittance of the light measured under black conditions after passing through the polarized glasses, and it is confirmed from the drawing that no light leakage occurs, thereby preventing crosstalk. Comparative Example 1 Polarized glasses were produced in the same procedure as described in Example 1, except that the phase difference layer was omitted. Fig. 7 is a graph showing the spectral luminance transmittance of light measured under black conditions after circular polarized light incident on the front surface of the polarizing glasses in all directions passes through the polarizing glasses, and it can be seen from the figure that light leakage occurs, causing crosstalk. 20 Comparative Example 2 The polarizing glasses were fabricated in the same procedure as described in Example 1, except that the retardation layer used had a refractive index ratio NZ of -0.5 and a coplanar retardation RO of 300 nm. FIG. 8 appears to be incident on the front side of the polarizing glasses in all directions. The circular polarization 201202783 light is measured by the polarized glasses and measured under black conditions. 'The light leakage occurs from the figure, causing crosstalk. Shooting ratio, the spectral brightness of the light is transparent. Comparing Example 3 with the same trampoline described in Example 1: Producing you + ^
射比’從圖可看到發生漏光，造成串擾。 【圖式簡單說明】 圖1和2疋示意圖，繪示依據本發明的偏光眼鏡構造。 圖3至9繪示在圓形偏振光（入射在眼鏡正面的所有方白 15 )通過實例1至5及比較實例1至3所製造的每一偏光鏡 片後在黑條件下所測量之光的光譜亮度透射比。 【主要元件符號說明】 20 : λ/4相差層 11 . λ/4相差層慢轴 20 :次相差層 21 .次相差層慢轴 3〇 :偏光片 25 31:偏光片透射軸 4〇 :透明保護膜 13The shot ratio 'can be seen from the figure to cause light leakage, causing crosstalk. BRIEF DESCRIPTION OF THE DRAWINGS Figures 1 and 2 are schematic views showing the construction of polarized glasses in accordance with the present invention. 3 to 9 show light measured under black conditions after circular polarized light (all squares 15 incident on the front side of the glasses) by each of the polarizing lenses manufactured by Examples 1 to 5 and Comparative Examples 1 to 3. Spectral brightness transmittance. [Major component symbol description] 20 : λ/4 phase difference layer 11. λ/4 phase difference layer slow axis 20: secondary phase difference layer 21. secondary phase difference layer slow axis 3 〇: polarizer 25 31: polarizer transmission axis 4 〇: transparent Protective film 13