TWI470276B - 3D glasses with optical film and 3D glasses - Google Patents
3D glasses with optical film and 3D glasses Download PDFInfo
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- TWI470276B TWI470276B TW101133703A TW101133703A TWI470276B TW I470276 B TWI470276 B TW I470276B TW 101133703 A TW101133703 A TW 101133703A TW 101133703 A TW101133703 A TW 101133703A TW I470276 B TWI470276 B TW I470276B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/12—Polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/008—Aspects relating to glasses for viewing stereoscopic images
Description
本發明涉及3D眼鏡用光學片和使用了它的3D眼鏡。The present invention relates to an optical sheet for 3D glasses and 3D glasses using the same.
3D眼鏡是觀看的人在觀看從3D(三維)立體圖像顯示裝置射出的影像光時戴上使用的。所述3D立體圖像顯示裝置射出具有視差的右眼用影像光線和左眼用影像光線，觀看的人通過右眼用鏡片和左眼用鏡片的光學性能不同的3D眼鏡觀看所述的右眼用影像光線和左眼用影像光線，由此該觀看的人能夠用視覺辨認3D立體圖像(例如參照日本專利公開公報特開2011-48236號)。The 3D glasses are worn by a person watching when viewing the image light emitted from the 3D (three-dimensional) stereoscopic image display device. The 3D stereoscopic image display device emits right-eye image light and left-eye image light having parallax, and the viewed person views the right eye through 3D glasses having different optical properties of the right-eye lens and the left-eye lens The image light and the left-eye image light are used, whereby the viewer can visually recognize the 3D stereoscopic image (for example, refer to Japanese Laid-Open Patent Publication No. 2011-48236).
具體地說，從3D立體圖像顯示裝置射出的右眼用影像光線和左眼用影像光線作為旋轉方向不同的圓偏光射出。3D眼鏡在3D立體圖像顯示裝置一側具有1/4波片。由該1/4波片把作為圓偏光的右眼用影像光線和左眼用影像光線轉換成直線偏光並使它們透射過去。在此，由於右眼用影像光線和左眼用影像光線是旋轉方向不同的圓偏光，所以相對於1/4波片的快軸，右旋的影像光線被轉換成向右旋一側傾斜45°的方向上的直線偏光，左旋的影像光線被轉換成向左旋一側傾斜45°的方向上的直線偏光。Specifically, the right-eye image light and the left-eye image light emitted from the 3D stereoscopic image display device are emitted as circularly polarized light having different rotation directions. The 3D glasses have a quarter-wave plate on the side of the 3D stereoscopic image display device. The right-eye image light and the left-eye image light, which are circularly polarized, are converted into linearly polarized light by the quarter-wave plate and transmitted through the quarter-wave plate. Here, since the right-eye image light and the left-eye image light are circularly polarized lights having different rotation directions, the right-handed image light is converted to the right-handed side with respect to the fast axis of the quarter-wave plate. The linearly polarized light in the direction of °, the left-handed image light is converted into a linearly polarized light in a direction inclined by 45° to the left-hand side.
此外，3D眼鏡在觀看的人一側具有偏光板。該偏光板被配置成：在各鏡片中，相對於1/4波片的快軸方向，在一個鏡片中透射軸方向朝一方向(例如右旋方向)傾斜，在另一個鏡片中透射軸方向朝另一方向(左旋方向)傾斜。因此，如上所述，在通過1/4波片轉換成直線偏光的直線偏光中，在一個鏡片中，左旋的影像光線轉換成的直線偏光 不通過，僅有右旋的影像光線轉換成的直線偏光通過。另一方面，在另一個鏡片中，右旋的影像光線轉換成的直線偏光不通過，僅有左旋的影像光線轉換成的直線偏光通過。由此，觀看的人可以用右眼觀看基於右眼用影像光線的影像，用左眼觀看基於左眼用影像光線的影像，其結果，能夠用視覺辨認3D立體圖像。Further, the 3D glasses have a polarizing plate on the side of the person watching. The polarizing plate is configured such that, in each lens, with respect to the fast axis direction of the 1/4 wave plate, the transmission axis direction is inclined in one direction (for example, the right-hand direction) in one lens, and the transmission axis direction is oriented in the other lens. Tilt in the other direction (left-hand direction). Therefore, as described above, in a linearly polarized light that is converted into a linearly polarized light by a quarter-wave plate, in one lens, the left-handed image light is converted into a linearly polarized light. If it does not pass, only the linearly polarized light converted by the right-handed image light passes. On the other hand, in the other lens, the linearly polarized light converted into the right-handed image light does not pass, and only the linearly polarized light into which the left-handed image light is converted passes. Thereby, the viewer can view the image based on the right-eye image light with the right eye, and view the image based on the left-eye image light with the left eye, and as a result, the 3D stereoscopic image can be visually recognized.
公知的是，作為在所述的3D眼鏡的鏡片中使用的1/4波片，使用以聚碳酸酯作為主要成分來製成片體並把該片體拉伸而得到的光學片。It is known that, as a quarter-wave plate used in the lens of the 3D glasses, an optical sheet obtained by forming a sheet with polycarbonate as a main component and stretching the sheet is used.
可是，在由聚碳酸酯製成的片體中，如果進行熱成形等，則雙折射率會發生變化，所以使用了所述光學片的3D眼鏡的鏡片必須形成平面的形狀。即，如果考慮到設計性等而使3D眼鏡的鏡片例如具有三維的曲面，則在形成該曲面形狀時，鏡片的相位差膜的雙折射率會發生變化，其結果不能使所希望的影像光線透射過鏡片，產生觀看的人不能用視覺辨認3D立體圖像的問題。However, in the sheet made of polycarbonate, if thermoforming or the like is performed, the birefringence changes, and therefore the lens of the 3D glasses using the optical sheet must have a planar shape. That is, if the lens of the 3D glasses has, for example, a three-dimensional curved surface in consideration of designability or the like, the birefringence of the retardation film of the lens changes when the curved shape is formed, and as a result, the desired image light cannot be made. Transmitted through the lens, the person who produces the view cannot visually recognize the problem of the 3D stereoscopic image.
專利文獻1：日本專利公開公報特開2011-48236號Patent Document 1: Japanese Patent Laid-Open Publication No. 2011-48236
鑒於所述的問題，本發明人提出了一種3D眼鏡用光學片的方案：使用以環烯烴共聚物或環烯烴聚合物為主要成分的眼鏡用相位差膜，即使做成曲面形狀等，也可以得到所希望的雙折射性(日本專利申請：特願2011-88695號)。In view of the above-mentioned problems, the present inventors have proposed a method for an optical sheet for 3D glasses, which uses a retardation film for glasses as a main component of a cycloolefin copolymer or a cycloolefin polymer, and can be formed into a curved shape or the like. The desired birefringence is obtained (Japanese Patent Application: Japanese Patent Application No. 2011-88695).
所述特願2011-88695號的日本專利申請的3D眼鏡用光學片的相位差膜的主要成分為環烯烴共聚物或環烯烴聚合物，因此即使施加熱和應力，雙折射性也不易發生變化。因此，即使所述的3D眼鏡用光學片做成曲面形狀，也可以 具有所希望的雙折射性，可以使所希望的光線透射過鏡片。可是，在該特願2011-88695號的日本專利申請的3D眼鏡用光學片中，如果片厚度薄，則耐久性惡化，如果增加片厚度從而使相位差膜變厚，則延遲(retardation)的調整變得困難。The main component of the retardation film of the optical sheet for 3D glasses of Japanese Patent Application No. 2011-88695 is a cyclic olefin copolymer or a cycloolefin polymer, so that birefringence does not easily change even if heat and stress are applied. . Therefore, even if the optical sheet for the 3D glasses is formed into a curved shape, With the desired birefringence, the desired light can be transmitted through the lens. However, in the optical sheet for 3D glasses of Japanese Patent Application Laid-Open No. 2011-88695, if the sheet thickness is thin, the durability is deteriorated, and if the sheet thickness is increased to make the retardation film thick, retardation is caused. Adjustment has become difficult.
因此，本發明的目的是提供即使做成曲面形狀也可以得到所希望的雙折射性，並且具有很高的耐久性的3D眼鏡用光學片以及使用了該3D眼鏡用光學片的3D眼鏡。Therefore, an object of the present invention is to provide an optical sheet for 3D glasses and a 3D glasses using the optical sheet for 3D glasses, which can obtain desired birefringence even in a curved shape and have high durability.
為了解決所述的問題，本發明提供一種3D眼鏡用光學片，係包括：基材膜；相位差膜，層疊在所述基材膜的背面側，在平面方向上具有雙折射性；以及偏光板，層疊在所述相位差膜的背面側；所述相位差膜的主要成分含有環烯烴共聚物或環烯烴聚合物；所述基材膜的厚度為300μm以上2000μm以下。In order to solve the above problems, the present invention provides an optical sheet for 3D glasses, comprising: a base film; a retardation film laminated on the back side of the base film, having birefringence in a planar direction; and polarized light The plate is laminated on the back side of the retardation film; the main component of the retardation film contains a cyclic olefin copolymer or a cycloolefin polymer; and the base film has a thickness of 300 μm or more and 2000 μm or less.
所述3D眼鏡用光學片的相位差膜的主要成分使用環烯烴共聚物或環烯烴聚合物。因此，該相位差膜即使為了形成曲面形狀等進行熱成形等而施加熱和應力，雙折射性也不易發生變化。即，由於環烯烴共聚物或環烯烴聚合物因熱和應力造成的相位差變化小，所以即使在熱成形等時也容易維持雙折射性。因此，所述3D眼鏡用光學片可以很好地用於具有所希望的雙折射性和所希望的曲面形狀的3D眼鏡用鏡片。此外，所述3D眼鏡用光學片通過做成所希望的曲面形狀等，可以提高眼鏡的外觀設計性。此外，把所述8D眼鏡用光學片的基材膜層疊在相位差膜的表面側，並使該基材膜的厚度在所述範圍內，所以通過所述基材膜可 以防止對相位差膜造成損傷，並且可以提高所述3D眼鏡用光學片的耐久性。The main component of the retardation film of the optical sheet for 3D glasses uses a cycloolefin copolymer or a cycloolefin polymer. Therefore, even if the retardation film applies heat and stress for thermoforming or the like to form a curved shape or the like, the birefringence does not easily change. That is, since the cyclic olefin copolymer or the cycloolefin polymer has a small change in phase difference due to heat and stress, it is easy to maintain birefringence even in thermoforming or the like. Therefore, the optical sheet for 3D glasses can be suitably used for a lens for 3D glasses having a desired birefringence and a desired curved shape. Further, the optical sheet for 3D glasses can improve the design of the glasses by forming a desired curved shape or the like. Further, the base film of the optical sheet for 8D glasses is laminated on the surface side of the retardation film, and the thickness of the base film is within the range, so that the substrate film can be passed through the substrate film. In order to prevent damage to the retardation film, the durability of the optical sheet for 3D glasses can be improved.
此外，較佳的是，所述基材膜的主要成分的光彈性係數的絕對值為10×10-12 Pa-1 以下。由此，可以減少基材膜因熱和應力造成的相位差的變化，即使做成曲面形狀也可以得到所希望的雙折射性。Further, it is preferable that the absolute value of the photoelastic coefficient of the main component of the base film is 10 × 10 -12 Pa -1 or less. Thereby, it is possible to reduce the change in the phase difference due to heat and stress of the base film, and it is possible to obtain desired birefringence even when formed into a curved shape.
此外，較佳的是，所述3D眼鏡用光學片的所述基材膜的主要成分是丙烯酸樹脂。由此，基本上可以消除基材膜因熱和應力造成的相位差變化，即使做成曲面形狀也可以得到所希望的雙折射性。此外，按照所述的結構，所述3D眼鏡用光學片還可以提高基材膜的防止損傷的性能和耐久性等。Further, it is preferable that the main component of the base film of the optical sheet for 3D glasses is an acrylic resin. Thereby, the phase difference change due to heat and stress of the base film can be basically eliminated, and desired birefringence can be obtained even if it is formed into a curved shape. Further, according to the above configuration, the optical sheet for 3D glasses can also improve the damage prevention performance, durability, and the like of the base film.
此外，較佳的是，所述3D眼鏡用光學片的所述基材膜的主要成分是環烯烴共聚物或環烯烴聚合物。由此，可以減少基材膜因熱和應力造成的相位差的變化，即使做成曲面形狀也可以得到所希望的雙折射性。Further, preferably, the main component of the base film of the optical sheet for 3D glasses is a cyclic olefin copolymer or a cycloolefin polymer. Thereby, it is possible to reduce the change in the phase difference due to heat and stress of the base film, and it is possible to obtain desired birefringence even when formed into a curved shape.
此外，較佳的是，所述3D眼鏡用光學片的所述基材膜的鉛筆硬度為H以上。由此，可以提高基材膜的防止損傷的性能，進而可以提高所述3D眼鏡用光學片的容易處理性。此外所述3D眼鏡用光學片因基材膜具有所述的硬度，所以可以提高耐久性，可以很好地反復使用。Further, it is preferable that the base film of the optical sheet for 3D glasses has a pencil hardness of H or more. Thereby, the damage prevention performance of the base film can be improved, and the ease of handling of the optical sheet for 3D glasses can be improved. Further, since the optical sheet for 3D glasses has the hardness described above, the substrate film can be improved in durability and can be used repeatedly.
此外，較佳的是，所述3D眼鏡用光學片的所述基材膜的面方向延遲值(面方向retardation值)(Ro值)為100nm以下。由此，可以防止損害相位差膜的光學功能，並可以得到所希望的雙折射作用。Moreover, it is preferable that the surface direction retardation value (plane direction retardation value) (Ro value) of the base film of the optical sheet for 3D glasses is 100 nm or less. Thereby, it is possible to prevent the optical function of the retardation film from being impaired, and to obtain a desired birefringence effect.
此外，較佳的是，所述3D眼鏡用光學片的厚度為350 μm以上2100μm以下。由此，可以很好地提高耐久性和容易處理性等。Moreover, it is preferable that the optical sheet for the 3D glasses has a thickness of 350 Μm or more and 2100 μm or less. Thereby, durability, ease of handling, and the like can be improved well.
此外，較佳的是，所述3D眼鏡用光學片在所述偏光板的背面側具備保護膜。由此可以進一步提高耐久性和容易處理性等。Moreover, it is preferable that the optical sheet for 3D glasses is provided with a protective film on the back side of the polarizing plate. Thereby, durability, ease of handling, and the like can be further improved.
此外，較佳的是，所述3D眼鏡用光學片以所述相位差膜的快軸方向和所述偏光板的透射軸方向所成的角度約為45°的方式進行配置。由此，如果圓偏光入射到所述相位差膜，則圓偏光轉換成直線偏光並透射過相位差膜。透射過相位差膜的直線偏光的偏光方向(振動方向)由圓偏光的旋轉方向和相位差膜的快軸方向所決定。具體地說，在從光的行進方向看，圓偏光是右旋的情況下，透射過的直線偏光的偏光方向成為從光的行進方向看相對於相位差膜的快軸方向朝右旋一側傾斜45°的方向。另一方面，在從光的行進方向看，圓偏光是左旋的情況下，透射過的直線偏光的偏光方向成為從光的行進方向看相對於相位差膜的快軸方向朝左旋一側傾斜45°的方向。因此，如上所述，通過以快軸方向和透射軸方向所成的角度約為45°的方式來進行配置，偏光板僅使向一方向旋轉的圓偏光轉換成的直線偏光(透射軸方向和偏光方向一致的直線偏光)透射過去，向另一方向旋轉的圓偏光轉換成的直線偏光(偏光方向與透射軸方向垂直的直線偏光)不能透射過去。由此，由所述結構構成的3D眼鏡用光學片可以很好地作為3D眼鏡的鏡片使用。Further, it is preferable that the optical sheet for 3D glasses is disposed such that an angle formed by a fast axis direction of the retardation film and a transmission axis direction of the polarizing plate is about 45°. Thereby, if circularly polarized light is incident on the retardation film, the circularly polarized light is converted into linearly polarized light and transmitted through the retardation film. The polarization direction (vibration direction) of the linearly polarized light transmitted through the retardation film is determined by the rotational direction of the circularly polarized light and the fast axis direction of the retardation film. Specifically, when the circularly polarized light is right-handed as seen from the traveling direction of light, the polarized direction of the transmitted linearly polarized light is turned to the right-hand side with respect to the fast axis direction of the retardation film as seen from the traveling direction of the light. Tilt the direction of 45°. On the other hand, when the circularly polarized light is left-handed as seen from the traveling direction of the light, the polarization direction of the transmitted linearly polarized light is inclined toward the left-hand side with respect to the fast-axis direction of the retardation film as seen from the traveling direction of the light. The direction of °. Therefore, as described above, the arrangement is performed such that the angle formed by the fast axis direction and the transmission axis direction is about 45°, and the polarizing plate converts only the circularly polarized light that is rotated in one direction into a linearly polarized light (transmission axis direction and The linearly polarized light having the same polarization direction is transmitted, and the linearly polarized light (the linearly polarized light whose polarization direction is perpendicular to the transmission axis direction) converted by the circularly polarized light rotated in the other direction cannot be transmitted. Thus, the optical sheet for 3D glasses composed of the above structure can be suitably used as a lens of 3D glasses.
為了解決所述的問題，本發明還提供一種3D眼鏡，係具備右眼用鏡片和左眼用鏡片，所述右眼用鏡片和所述左 眼用鏡片分別包括所述的3D眼鏡用光學片；所述右眼用鏡片的相位差膜的快軸方向配置成：在一方向側與所述右眼用鏡片的偏光板的透射軸方向所成的角度約為45°；所述左眼用鏡片的相位差膜的快軸方向配置成：在另一方向側；與所述左眼用鏡片的偏光板的透射軸方向所成的角度約為45°。In order to solve the above problems, the present invention also provides a 3D glasses having a right-eye lens and a left-eye lens, the right-eye lens and the left The ophthalmic lens respectively includes the optical sheet for 3D glasses; the fast axis direction of the retardation film of the right-eye lens is arranged such that the direction of the transmission axis of the polarizing plate of the right-eye lens is on one direction side The angle formed is about 45°; the fast axis direction of the retardation film of the left-eye lens is disposed on the other direction side; and the angle formed by the transmission axis direction of the polarizing plate of the left-eye lens is about It is 45°.
所述3D眼鏡的相位差膜的主要成分使用了環烯烴共聚物或環烯烴聚合物。因此所述3D眼鏡即使為了把右眼用鏡片和左眼用鏡片做成曲面形狀等進行熱成形等而施加熱和應力，相位差膜的雙折射性也不易產生變化。因此所述3D眼鏡即使在把右眼用鏡片和左眼用鏡片做成曲面形狀的情況下，也可以容易地得到所希望的雙折射作用。此外，所述3D眼鏡通過把右眼用鏡片和左眼用鏡片做成所希望的曲面形狀，可以提高外觀設計性。此外，所述3D眼鏡的基材膜層疊在相位差膜的表面側，並且所述基材膜的厚度在所述範圍內，所以可以防止因該基材膜對相位差膜造成損傷，並且可以提高所述3D眼鏡的耐久性。The main component of the retardation film of the 3D glasses uses a cyclic olefin copolymer or a cycloolefin polymer. Therefore, even if heat and stress are applied to the 3D glasses for thermoforming or the like in order to form the right-eye lens and the left-eye lens into a curved shape, the birefringence of the retardation film is less likely to change. Therefore, even when the right-eye lens and the left-eye lens are formed into a curved shape, the 3D glasses can easily obtain a desired birefringence effect. Further, the 3D glasses can improve the designability by forming the right-eye lens and the left-eye lens into a desired curved shape. Further, the base film of the 3D glasses is laminated on the surface side of the retardation film, and the thickness of the base film is within the range, so that damage to the retardation film by the base film can be prevented, and The durability of the 3D glasses is improved.
此外，所述3D眼鏡的右眼用鏡片的快軸方向配置成：在一方向側，與右眼用鏡片的偏光板的透射軸方向所成的角度約為45°，左眼用鏡片的快軸方向配置成：在另一方向側，與左眼用鏡片的偏光板的透射軸方向所成的角度約為45°，因此成為右眼用鏡片僅使向一方向旋轉的圓偏光透射過去，左眼用鏡片僅使向另一方向旋轉的圓偏光透射過去。因此，按照所述3D眼鏡，觀看的人可以用右眼觀看從立體圖像顯示裝置射出的右眼用影像光線、用左眼觀看左眼用影像光線，從而可以很好地辨認3D立體圖像。Further, the fast-axis direction of the right-eye lens of the 3D glasses is arranged such that the angle formed on the one-direction side with the transmission axis direction of the polarizing plate of the right-eye lens is about 45°, and the left-eye lens is fast. The axial direction is arranged such that the angle formed by the direction of the transmission axis of the polarizing plate of the left-eye lens is about 45° on the other direction side, so that the right-eye lens transmits only the circularly polarized light that rotates in one direction. The lens for the left eye transmits only the circularly polarized light that rotates in the other direction. Therefore, according to the 3D glasses, the viewer can view the right-eye image light emitted from the stereoscopic image display device with the right eye and the left-eye image light with the left eye, so that the 3D stereoscopic image can be well recognized. .
此外，較佳的是，所述3D眼鏡的所述右眼用鏡片和所述左眼用鏡片的鏡片曲線(lens curve)為3以上6以下。由此，可以很好地保持與觀看的人的視線方向相對的右眼用鏡片和左眼用鏡片的曲面形狀，可以減少觀看的人眼睛的疲勞，可以有助於長時間使用。Further, it is preferable that a lens curve of the right-eye lens and the left-eye lens of the 3D glasses is 3 or more and 6 or less. Thereby, the curved shape of the right-eye lens and the left-eye lens which are opposed to the line of sight of the person watching can be well maintained, and the fatigue of the eyes of the person who is watching can be reduced, which can contribute to long-term use.
此外，在本發明中，所謂“表面側”是指在觀看的人戴上3D眼鏡的狀態下的3D立體圖像顯示裝置一側。所謂“背面側”是指在觀看的人戴上3D眼鏡的狀態下的觀看的人一側。“光彈性係數”是表示因外力造成折射率產生變化的難易程度的係數，是用CR [Pa-1 ]=△n/σR 求出的值。其中，σR 為拉伸應力[Pa]，△n為施加應力時的折射率差，△n由下述的式子定義。Further, in the present invention, the "surface side" refers to the side of the 3D stereoscopic image display device in a state where the person watching is wearing the 3D glasses. The "back side" refers to the side of the person who is watching while the person watching is wearing the 3D glasses. The "photoelastic coefficient" is a coefficient indicating the degree of difficulty in changing the refractive index due to an external force, and is a value obtained by C R [Pa -1 ] = Δn / σ R . Here, σ R is a tensile stress [Pa], Δn is a refractive index difference at the time of stress application, and Δn is defined by the following formula.
△n=n1 -n2 △n=n 1 -n 2
(在所述式中，n1 是與拉伸應力平行的方向上的折射率，n2 是與拉伸方向垂直的方向上的折射率。)(In the formula, n 1 is a refractive index in a direction parallel to the tensile stress, and n 2 is a refractive index in a direction perpendicular to the stretching direction.)
此外，“鉛筆硬度”是基於JIS K5400中規定的試驗方法的8.4所記載的鉛筆劃痕值的值。“面內延遲值(Ro)(亦即面方向延遲值)”是通過Ro=(Ny-Nx)×d求出的值。其中，Nx是膜的快軸(進相軸)(與面方向平行的軸)的折射率，Ny是膜的慢軸(遲相軸)(與面方向平行且與快軸垂直的軸)的折射率，d是膜的厚度。“鏡片曲線”是通過鏡片曲線(D)=(N-1)×1000/SR求出的值。其中，N是鏡片的折射率，SR是鏡片整個面的曲率半徑。Further, the "pencil hardness" is a value of a pencil scratch value described in 8.4 based on the test method specified in JIS K5400. The "in-plane retardation value (Ro) (that is, the plane direction retardation value)" is a value obtained by Ro = (Ny - Nx) × d. Where Nx is the refractive index of the fast axis (phase axis) of the film (the axis parallel to the plane direction), and Ny is the slow axis (latient phase axis) of the film (the axis parallel to the plane direction and perpendicular to the fast axis) The refractive index, d, is the thickness of the film. The "lens curve" is a value obtained by a lens curve (D) = (N-1) × 1000 / SR. Where N is the refractive index of the lens and SR is the radius of curvature of the entire surface of the lens.
如上所述，本發明的3D眼鏡用光學片和使用了它的3D眼鏡，即使把鏡片做成曲面形狀等，也可以得到所希望的雙折射性，並且可以提高耐久性。As described above, the optical sheet for 3D glasses of the present invention and the 3D glasses using the same can obtain desired birefringence and improve durability even when the lens is formed into a curved shape or the like.
下面參照適當的附圖對本發明的實施方式進行詳細說明。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
圖1的3D眼鏡用光學片1包括：基材膜2；相位差膜3，層疊在基材膜2的背面側，在平面方向上具有雙折射性；以及偏光板4，層疊在相位差膜3的背面側。The optical sheet 1 for 3D glasses of FIG. 1 includes a base film 2, a retardation film 3 laminated on the back side of the base film 2, and having birefringence in the planar direction, and a polarizing plate 4 laminated on the retardation film. The back side of 3.
作為基材膜2的主要成分的光彈性係數的絕對值，適合使用10×10-12 Pa-1 以下的光彈性係數，更佳的是8×10-12 Pa-1 以下的光彈性係數，特佳的是6×10-12 Pa-1 以下的光彈性係數。As the absolute value of the photoelastic coefficient of the main component of the base film 2, a photoelastic coefficient of 10 × 10 -12 Pa -1 or less is preferable, and a photoelastic coefficient of 8 × 10 -12 Pa -1 or less is more preferable. Particularly preferred is a photoelastic coefficient of 6 × 10 -12 Pa -1 or less.
基材膜2以丙烯酸樹脂、環烯烴共聚物或環烯烴聚合物為主要成分製成。The base film 2 is made of an acrylic resin, a cycloolefin copolymer or a cycloolefin polymer as a main component.
作為所述丙烯酸樹脂，可以例舉的有聚甲基丙烯酸甲酯(PMMA)、聚甲基丙烯酸丁酯、聚甲基丙烯酸環己酯等。作為所述環烯烴共聚物，可以例舉的有乙烯和降冰片烯的共聚物、乙烯和四環十二烯(tetracyclododecene)的共聚物等。作為所述環烯烴聚合物，可以例舉的有降冰片烯類聚合物、單環的環狀烯烴類聚合物、環狀共軛二烯類聚合物、乙烯脂環式烴類聚合物樹脂等。The acrylic resin may, for example, be polymethyl methacrylate (PMMA), polybutyl methacrylate or polycyclohexyl methacrylate. The cycloolefin copolymer may, for example, be a copolymer of ethylene and norbornene, a copolymer of ethylene and tetracyclododecene, or the like. Examples of the cycloolefin polymer include a norbornene-based polymer, a monocyclic cyclic olefin polymer, a cyclic conjugated diene polymer, and a vinyl alicyclic hydrocarbon polymer resin. .
此外，以對加工性能、耐熱性能、耐侯性能、機械性質、尺寸穩定性等進行改進和改性為目的，可以在基材膜2的形成材料中混合各種添加劑等。作為所述的添加劑，可以例舉的有熱穩定劑、紫外線吸收劑、紅外線吸收劑、抗氧化劑、光穩定劑、脫模劑、抗靜電劑、填充劑等。In addition, various additives and the like may be mixed in the material for forming the base film 2 for the purpose of improving and modifying the workability, the heat resistance, the weather resistance, the mechanical properties, the dimensional stability, and the like. As the additive, there may be mentioned a heat stabilizer, an ultraviolet absorber, an infrared absorber, an antioxidant, a light stabilizer, a mold release agent, an antistatic agent, a filler, and the like.
基材膜2的厚度(平均厚度)為300μm以上2000μm以下，較佳的是500μm以上1500μm以下。如果所述3D眼鏡用光學片1的基材膜2的厚度比所述範圍的下限小，則存在耐久性降低的問題。相反，如果基材膜2的厚度超過所述範圍的上限，則基材膜2的重量增加，存在如果長時間使用會導致疲勞的問題。The thickness (average thickness) of the base film 2 is 300 μm or more and 2000 μm or less, preferably 500 μm or more and 1500 μm or less. When the thickness of the base film 2 of the optical sheet 1 for 3D glasses is smaller than the lower limit of the range, there is a problem that durability is lowered. On the other hand, if the thickness of the base film 2 exceeds the upper limit of the range, the weight of the base film 2 increases, and there is a problem that fatigue may occur if used for a long period of time.
作為基材膜2的鉛筆硬度，雖然沒有特別的限定，但較佳的是H以上，更佳的是2H以上。如果所述3D眼鏡用光學片1的基材膜2的鉛筆硬度小於所述範圍的下限，則基材膜2的防止損傷的性能下降，存在所述3D眼鏡用光學片1的容易處理性能下降的問題。與此相對，通過使所述3D眼鏡用光學片1的基材膜2的鉛筆硬度在所述範圍內，可以很好地反復使用。The pencil hardness of the base film 2 is not particularly limited, but is preferably H or more, and more preferably 2H or more. If the pencil hardness of the base film 2 of the optical sheet 1 for 3D glasses is less than the lower limit of the range, the damage prevention performance of the base film 2 is lowered, and the ease of handling of the optical sheet 1 for 3D glasses is deteriorated. The problem. On the other hand, when the pencil hardness of the base film 2 of the optical sheet 1 for 3D glasses is within the above range, it can be used repeatedly.
作為基材膜2的面方向延遲值(Ro值)，較佳的是100nm以下，更佳的是60nm以下。如果所述3D眼鏡用光學片1的基材膜2的面方向延遲值(Ro值)超過所述範圍的上限，則存在阻礙相位差膜3的光學功能的問題，存在不能得到所希望的雙折射作用的問題。The surface direction retardation value (Ro value) of the base film 2 is preferably 100 nm or less, more preferably 60 nm or less. When the surface direction retardation value (Ro value) of the base film 2 of the optical sheet 1 for 3D glasses exceeds the upper limit of the range, there is a problem that the optical function of the retardation film 3 is hindered, and the desired double cannot be obtained. The problem of refraction.
作為基材膜2的厚度方向延遲值(Rth)，較佳的是200nm以下，更佳的是100nm以下。如果所述3D眼鏡用光學片1的基材膜2的厚度方向延遲值(Rth)超過所述範圍的上限，則存在阻礙相位差膜3的光學功能的問題，並且存在不能得到所希望的雙折射作用的問題。此外，“厚度方向延遲值(Rth)”是通過Rth=((Nx+Ny)/2-Nz)×d求出的值。其中，Nz是在厚度方向(與面方向垂直的方向)上的膜的折射率。The thickness direction retardation value (Rth) of the base film 2 is preferably 200 nm or less, more preferably 100 nm or less. If the thickness direction retardation value (Rth) of the base film 2 of the optical sheet 1 for 3D glasses exceeds the upper limit of the range, there is a problem that the optical function of the retardation film 3 is hindered, and the desired double is not obtained. The problem of refraction. Further, the "thickness direction retardation value (Rth)" is a value obtained by Rth = ((Nx + Ny) / 2 - Nz) × d. Here, Nz is the refractive index of the film in the thickness direction (the direction perpendicular to the plane direction).
作為基材膜2的霧度，沒有特別的限定，但較佳的是0.6%以下，更佳的是0.3%以下。如果基材膜2的霧度超過所述範圍的上限，則存在圖像的清晰程度降低的問題。The haze of the base film 2 is not particularly limited, but is preferably 0.6% or less, more preferably 0.3% or less. If the haze of the base film 2 exceeds the upper limit of the range, there is a problem that the degree of sharpness of the image is lowered.
作為基材膜2的全光線透射率，雖然沒有特別的限定，但是較佳的是88%以上，更佳的是90%以上。如果基材膜2的全光線透射率小於所述範圍的下限，則不能使光線充分透射過去，存在會使清晰程度降低的問題。The total light transmittance of the base film 2 is not particularly limited, but is preferably 88% or more, and more preferably 90% or more. If the total light transmittance of the base film 2 is less than the lower limit of the range, the light cannot be sufficiently transmitted, and there is a problem that the degree of clarity is lowered.
作為基材膜2的原材料的折射率，雖然沒有特別的限定，但較佳的是1.44以上1.54以下，更佳的是1.46以上1.52以下，特佳的是1.49。通過使基材膜2的折射率在所述的範圍內，可以把基材膜2的原材料的折射率控制在相位差膜3的原材料的折射率以下，並且可以把基材膜2的原材料的折射率和相位差膜3的原材料的折射率的差抑制為一定的程度。其結果，所述3D眼鏡用光學片1可以使從3D立體圖像顯示裝置射出的影像光很好地透射過去。The refractive index of the material of the base film 2 is not particularly limited, but is preferably 1.44 or more and 1.54 or less, more preferably 1.46 or more and 1.52 or less, and particularly preferably 1.49. By setting the refractive index of the base film 2 within the above range, the refractive index of the raw material of the base film 2 can be controlled to be lower than the refractive index of the raw material of the retardation film 3, and the raw material of the base film 2 can be used. The difference in refractive index between the refractive index and the material of the retardation film 3 is suppressed to a certain extent. As a result, the optical sheet 1 for 3D glasses can transmit the image light emitted from the 3D stereoscopic image display device well.
基材膜2可以通過T型模法或充氣吹脹法等擠出法、澆鑄成形法、切削法等公知的方法製造。The base film 2 can be produced by a known method such as a T-die method or an inflation inflation method, such as an extrusion method, a casting method, or a cutting method.
在本實施方式中，使用1/4波片作為相位差膜3。相位差膜3的主要成分含有環烯烴共聚物或環烯烴聚合物。相位差膜3作為主要成分所含有的環烯烴共聚物或環烯烴聚合物可以例舉出與基材膜2的主要成分相同的物質。作為相位差膜3的添加劑與基材膜2相同。In the present embodiment, a quarter-wave plate is used as the retardation film 3. The main component of the retardation film 3 contains a cyclic olefin copolymer or a cycloolefin polymer. The cycloolefin copolymer or the cycloolefin polymer contained in the retardation film 3 as a main component may be the same as the main component of the base film 2 . The additive as the retardation film 3 is the same as that of the base film 2 .
作為相位差膜3的玻璃化轉變溫度，雖然沒有特別的限定，但是較佳的是100℃以上170℃以下，更佳的是105℃以上160℃以下，特佳的是110℃以上150℃以下。如果 所述3D眼鏡用光學片1的相位差膜3的玻璃化轉變溫度超過所述範圍的上限，則有時在膜拉伸時容易產生拉伸不均，存在變得難以熱成形的問題。另一方面，如果所述3D眼鏡用光學片1的相位差膜3的玻璃化轉變溫度小於所述範圍的下限，則存在耐熱性能惡化的問題。與此相反，如果所述3D眼鏡用光學片1的相位差膜3的玻璃化轉變溫度在所述範圍內，則可以容易且可靠地進行熱成形，並且可以很好地維持雙折射性。The glass transition temperature of the retardation film 3 is not particularly limited, but is preferably 100° C. or higher and 170° C. or lower, more preferably 105° C. or higher and 160° C. or lower, and particularly preferably 110° C. or higher and 150° C. or lower. . in case When the glass transition temperature of the retardation film 3 of the optical sheet 1 for 3D glasses exceeds the upper limit of the range, stretching unevenness tends to occur during film stretching, and there is a problem that it is difficult to thermoform. On the other hand, if the glass transition temperature of the retardation film 3 of the optical sheet 1 for 3D glasses is smaller than the lower limit of the range, there is a problem that heat resistance is deteriorated. On the other hand, if the glass transition temperature of the retardation film 3 of the optical sheet 1 for 3D glasses is within the above range, thermoforming can be easily and reliably performed, and birefringence can be favorably maintained.
作為相位差膜3的製造方法，雖然沒有特別的限定，但可以通過對以環烯烴共聚物或環烯烴聚合物作為主要成分的組合物進行制膜、拉伸來製造。The method for producing the retardation film 3 is not particularly limited, and it can be produced by forming a film and stretching a composition containing a cycloolefin copolymer or a cycloolefin polymer as a main component.
作為相位差膜3的制膜方法，沒有特別的限定，可以通過公知的方法進行。作為相位差膜3的制膜方法，可以例舉的有溶液澆鑄法(溶液流延法)、熔融擠出法、壓延法、壓縮成形法等公知的制膜方法。其中，較佳的是溶液澆鑄法或熔融擠出法。The film forming method of the retardation film 3 is not particularly limited and can be carried out by a known method. The film forming method of the retardation film 3 may, for example, be a known film forming method such as a solution casting method (solution casting method), a melt extrusion method, a calendering method, or a compression molding method. Among them, a solution casting method or a melt extrusion method is preferred.
作為用於溶液澆鑄法的溶劑，可以例舉的有三氯甲烷、二氯甲烷等氯系溶劑；甲苯、二甲苯、苯和它們的混合溶劑等芳香族系溶劑；甲醇、乙醇、異丙醇、正丁醇、2-丁醇等醇系溶劑；甲基溶纖劑、乙基溶纖劑、丁基溶纖劑、N,N-二甲基甲醯胺、二甲基亞碸、二噁烷、環己酮、四氫呋喃、丙酮、醋酸乙酯、二***等。可以只使用所述溶劑中的一種，也可以一起使用兩種以上的所述溶劑。The solvent used for the solution casting method may, for example, be a chlorine solvent such as chloroform or dichloromethane; an aromatic solvent such as toluene, xylene, benzene or a mixed solvent thereof; methanol, ethanol or isopropanol; An alcohol solvent such as n-butanol or 2-butanol; methyl cellosolve, ethyl cellosolve, butyl cellosolve, N,N-dimethylformamide, dimethyl azine, dioxane, Cyclohexanone, tetrahydrofuran, acetone, ethyl acetate, diethyl ether, and the like. Only one of the solvents may be used, or two or more of the solvents may be used together.
作為用於進行溶液澆鑄法的裝置，可以例舉的有滾筒式澆鑄機、帶式澆鑄機、旋轉塗布機等。As an apparatus for performing a solution casting method, a drum type casting machine, a belt casting machine, a spin coater, etc. are mentioned.
作為熔融擠出法，可以例舉的有T型模法、充氣吹脹 法等。在設組合物的玻璃化轉變溫度為Tg時，熔融擠出時的樹脂溫度較佳的是Tg以上，更佳的是Tg+50℃~Tg+250℃，進一步較佳的是Tg+80℃~Tg+200℃。As the melt extrusion method, there may be exemplified a T-die method and an inflation inflation. Law and so on. When the glass transition temperature of the composition is Tg, the resin temperature at the time of melt extrusion is preferably Tg or more, more preferably Tg + 50 ° C to Tg + 250 ° C, further preferably Tg + 80 ° C. ~Tg+200°C.
相位差膜3在所述的成膜的同時可以成為所希望的1/4波片，或者連續進行拉伸，可以成為所希望的1/4波片。此外，也可以把通過所述的成膜方法得到的膜另外進行拉伸，成為1/4波片。The retardation film 3 can be a desired quarter-wave plate at the same time as the film formation described above, or can be continuously stretched, and can be a desired quarter-wave plate. Further, the film obtained by the film formation method described above may be additionally stretched to form a quarter-wave plate.
作為相位差膜3的拉伸方法，沒有特別的限定，可以通過公知的方法進行。在把組合物製成膜後，通過單軸拉伸或雙軸拉伸，可以得到相位差膜3。作為所述的單軸拉伸方法，可以使用利用拉幅機法的橫向單軸拉伸、在輥間的縱向單軸拉伸、輥間壓延法等任意的方法。拉伸倍率一般為1.01~5倍的範圍，可以根據膜的拉伸性能和光學特性(例如折射率分佈、面內延遲值、厚度方向延遲值、Nz係數)等實施。所述拉伸能夠以一級的方式進行，也能夠以多級的方式進行。此外，拉伸時的溫度較佳的是Tg-30℃~Tg+50℃，更佳的是Tg-10℃~Tg+30℃。如果拉伸時的溫度在所述的溫度範圍內，則聚合物分子的運動適度，不容易產生因拉伸引起的定向的緩和，定向控制變得容易，容易得到所希望的光學特性，所以是較佳的。The stretching method of the retardation film 3 is not particularly limited and can be carried out by a known method. After the composition is formed into a film, the retardation film 3 can be obtained by uniaxial stretching or biaxial stretching. As the uniaxial stretching method, any method such as transverse uniaxial stretching by a tenter method, longitudinal uniaxial stretching between rolls, and roll-to-roll calendering method can be used. The stretching ratio is generally in the range of 1.01 to 5 times, and can be carried out depending on the tensile properties and optical properties (for example, refractive index distribution, in-plane retardation value, thickness direction retardation value, Nz coefficient) of the film. The stretching can be carried out in a one-stage manner or in a multi-stage manner. Further, the temperature at the time of stretching is preferably from Tg - 30 ° C to Tg + 50 ° C, more preferably from Tg - 10 ° C to Tg + 30 ° C. If the temperature at the time of stretching is within the above-described temperature range, the movement of the polymer molecules is moderate, the orientation due to stretching is less likely to be relaxed, the orientation control becomes easy, and the desired optical characteristics are easily obtained, so Preferably.
偏光板4是片狀部件，設置成僅使振動方向在一定方向上的光線透射過去。偏光板4可以使用公知的偏光板，例如可以使用在以聚乙烯醇為主體、且在該主體上吸附定向有碘化合物分子的偏光板。The polarizing plate 4 is a sheet-like member that is disposed to transmit only light having a vibration direction in a certain direction. As the polarizing plate 4, a known polarizing plate can be used. For example, a polarizing plate mainly composed of polyvinyl alcohol and having an iodine compound molecule adsorbed on the main body can be used.
此外，基材膜2、相位差膜3和偏光板4可以通過各種 方法固定，例如通過黏接劑等層疊固定。此外，在使用黏接劑的情況下，較佳的是使用透明的黏接劑。此外，以使相位差膜3的快軸方向和偏光板4的透射軸方向所成的角度為約45°的方式來進行配置並固定。Further, the base film 2, the retardation film 3, and the polarizing plate 4 can pass various The method is fixed, for example, by lamination and fixing by an adhesive or the like. Further, in the case of using an adhesive, it is preferred to use a transparent adhesive. Further, the angle between the fast axis direction of the retardation film 3 and the transmission axis direction of the polarizing plate 4 is about 45°, and is fixed and fixed.
作為3D眼鏡用光學片1的厚度(平均厚度)雖然沒有特別的限定，但較佳的是350μm以上2100μm以下，更佳的是550μm以上1600μm以下。如果3D眼鏡用光學片1的厚度比所述範圍的下限小，則耐久性降低，存在難以反復使用的問題。相反，如果3D眼鏡用光學片1的厚度超過所述範圍的上限，則重量增加，存在長時間使用會使佩戴者產生疲勞的問題。與此相對，如果3D眼鏡用光學片1的厚度在所述範圍內，則可以很好地提高耐久性、容易處理性等。The thickness (average thickness) of the optical sheet 1 for 3D glasses is not particularly limited, but is preferably 350 μm or more and 2100 μm or less, and more preferably 550 μm or more and 1600 μm or less. When the thickness of the optical sheet 1 for 3D glasses is smaller than the lower limit of the range, the durability is lowered and there is a problem that it is difficult to reuse. On the other hand, if the thickness of the optical sheet 1 for 3D glasses exceeds the upper limit of the range, the weight increases, and there is a problem that the wearer suffers fatigue when used for a long period of time. On the other hand, when the thickness of the optical sheet 1 for 3D glasses is within the above range, durability, ease of handling, and the like can be improved.
作為3D眼鏡用光學片1的霧度，雖然沒有特別的限定，但較佳的是1%以下，更佳的是0.5%以下。如果所述3D眼鏡用光學片1的霧度超過所述範圍的上限，則存在圖像的清晰程度降低的問題。The haze of the optical sheet 1 for 3D glasses is not particularly limited, but is preferably 1% or less, more preferably 0.5% or less. If the haze of the optical sheet 1 for 3D glasses exceeds the upper limit of the range, there is a problem that the degree of sharpness of the image is lowered.
作為3D眼鏡用光學片1的全光線透射率，雖然沒有特別的限定，但是較佳的是87%以上，更較佳的是90%以上。如果所述3D眼鏡用光學片1的全光線透射率小於所述範圍的下限，則不能使光線充分透射過去，存在清晰程度降低的問題。The total light transmittance of the optical sheet 1 for 3D glasses is not particularly limited, but is preferably 87% or more, and more preferably 90% or more. If the total light transmittance of the optical sheet 1 for 3D glasses is smaller than the lower limit of the range, the light cannot be sufficiently transmitted, and there is a problem that the degree of sharpness is lowered.
下面參照圖2對使用了3D眼鏡用光學片1的3D眼鏡11進行說明。Next, the 3D glasses 11 using the optical sheets 1 for 3D glasses will be described with reference to Fig. 2 .
3D眼鏡11包括框架12、安裝在框架12上的右眼用鏡片13和左眼用鏡片14。作為右眼用鏡片13和左眼用鏡片14，使用通過對3D眼鏡用光學片1進行熱成形而把3D眼鏡用光學片1以三維的方式彎曲而成的鏡片。具體地說，對右眼用鏡片13和左眼用鏡片14進行熱成形，使得右眼用鏡片13和左眼用鏡片14成為中央一側向表面側彎曲的形狀。The 3D glasses 11 include a frame 12, a right-eye lens 13 and a left-eye lens 14 mounted on the frame 12. As the right-eye lens 13 and the left-eye lens 14, a lens obtained by three-dimensionally bending the optical sheet 1 for 3D glasses by thermoforming the optical sheet 1 for 3D glasses is used. Specifically, the right-eye lens 13 and the left-eye lens 14 are thermoformed so that the right-eye lens 13 and the left-eye lens 14 have a shape in which the center side is curved toward the front side.
作為右眼用鏡片13和左眼用鏡片14的鏡片曲線，雖然沒有特別的限定，但是較佳的是3以上6以下，更佳的是4以上5以下。如果右眼用鏡片13和左眼用鏡片14的鏡片曲線小於所述範圍的下限，則存在不能使鏡片面與觀看的人的視線方向垂直地形成，從而導致觀看的人的眼睛容易疲勞的問題。相反，如果鏡片曲線超過所述範圍的上限，則不僅不能使鏡片面與觀看的人的視線方向垂直地形成，而且存在有在熱成形時難以得到所希望的雙折射性的問題。與此相對，如果右眼用鏡片13和左眼用鏡片14的鏡片曲線在所述範圍內，則可以使右眼用鏡片13和左眼用鏡片14的鏡片面保持與觀看的人的視線方向大體垂直，可以減少觀看的人的彆扭的感覺，並可以減少觀看的人的眼睛疲勞，有助於長時間使用。The lens curve of the right-eye lens 13 and the left-eye lens 14 is not particularly limited, but is preferably 3 or more and 6 or less, and more preferably 4 or more and 5 or less. If the lens curve of the right-eye lens 13 and the left-eye lens 14 is smaller than the lower limit of the range, there is a problem that the lens surface cannot be formed perpendicularly to the line of sight of the person watching, and the eyes of the person who is watching are easily fatigued. . On the contrary, if the lens curve exceeds the upper limit of the range, not only the lens surface cannot be formed perpendicularly to the line of sight of the person watching, but also the problem that it is difficult to obtain desired birefringence at the time of thermoforming. On the other hand, if the lens curves of the right-eye lens 13 and the left-eye lens 14 are within the above range, the lens faces of the right-eye lens 13 and the left-eye lens 14 can be kept in the line of sight of the person watching. It is generally vertical, which can reduce the awkward feeling of the person watching, and can reduce the eye strain of the person watching and contribute to long-term use.
把右眼用鏡片13的相位差膜3的快軸方向配置成：在右旋一側與右眼用鏡片13的偏光板4的透射軸方向所成的角度約為45°。此外，把左眼用鏡片14的相位差膜3的快軸方向配置成：在左旋方向上與左眼用鏡片14的偏光板4的透射軸方向所成的角度約為45°。The direction of the fast axis of the retardation film 3 of the right-eye lens 13 is such that the angle formed by the right-hand side and the direction of the transmission axis of the polarizing plate 4 of the right-eye lens 13 is about 45°. Further, the direction of the fast axis of the retardation film 3 of the left-eye lens 14 is such that the angle formed in the left-hand direction with respect to the transmission axis direction of the polarizing plate 4 of the left-eye lens 14 is about 45°.
為了更具體地說明，舉出一個具體例子進行說明，右 眼用鏡片13和左眼用鏡片14的偏光板4的透射軸方向配置在水準方向(右眼用鏡片13和左眼用鏡片14並排配置的方向)。右眼用鏡片13的相位差膜3的快軸方向配置成相對於水準方向朝左旋一側傾斜約45°，左眼用鏡片14的相位差膜3的快軸方向配置成相對於水準方向朝右旋一側傾斜約45°。To be more specific, a specific example is given to illustrate The transmission axis directions of the polarizing plate 4 of the ophthalmic lens 13 and the left-eye lens 14 are arranged in the horizontal direction (the direction in which the right-eye lens 13 and the left-eye lens 14 are arranged side by side). The direction of the fast axis of the retardation film 3 of the right-eye lens 13 is arranged to be inclined by about 45° with respect to the horizontal direction toward the left-hand side, and the direction of the fast axis of the retardation film 3 of the left-eye lens 14 is arranged with respect to the horizontal direction. The right-hand side is inclined by about 45°.
在由所述結構構成的3D眼鏡11中，可以使佩戴3D眼鏡11的人基於來自3D立體圖像顯示裝置的影像光線辨認3D立體圖像。即，右眼用影像光線透射過右眼用鏡片13，而不透射過左眼用鏡片14；左眼用影像光線透射過左眼用鏡片14，而不透射過右眼用鏡片13。In the 3D glasses 11 having the above configuration, the person wearing the 3D glasses 11 can recognize the 3D stereoscopic image based on the image light from the 3D stereoscopic image display device. That is, the right-eye image light is transmitted through the right-eye lens 13 without being transmitted through the left-eye lens 14; the left-eye image light is transmitted through the left-eye lens 14 and not through the right-eye lens 13.
更具體地說，例如在右眼用影像光線是右旋的圓偏光的情況下，如果該圓偏光透射過右眼用鏡片13的相位差膜3，則由於相位差膜3具有相對於水準方向朝左旋一側傾斜約45°的快軸，所以偏光方向被轉換成水準方向的直線偏光。在該情況下，由於左眼用影像光線是左旋的，所以如果該圓偏光透射過右眼用鏡片13的相位差膜3，則變為偏光方向為上下方向(與水準方向垂直的方向)的直線偏光。由於偏光板4的透射軸方向是水準方向的，所以僅有右眼用影像光線的圓偏光轉換成的直線偏光(偏光方向為水準方向)透射過偏光板4，把左眼用影像光線的圓偏光轉換成的直線偏光(偏光方向為上下方向)不透射過偏光板4。More specifically, for example, in the case where the right-eye image light is a right-handed circularly polarized light, if the circularly polarized light is transmitted through the retardation film 3 of the right-eye lens 13, the retardation film 3 has a relative orientation The fast axis is inclined by about 45° toward the left-hand side, so the polarization direction is converted into linear polarization in the horizontal direction. In this case, since the left-eye image light is left-handed, if the circularly polarized light is transmitted through the retardation film 3 of the right-eye lens 13, the polarization direction is the vertical direction (the direction perpendicular to the horizontal direction). Straight line polarization. Since the transmission axis direction of the polarizing plate 4 is in the horizontal direction, only the linearly polarized light (the polarization direction is the horizontal direction) into which the circularly polarized light of the right-eye image light is transmitted is transmitted through the polarizing plate 4, and the left-eye image light is rounded. The linearly polarized light (the polarization direction is the up and down direction) converted by the polarized light is not transmitted through the polarizing plate 4.
此外，對於左眼用鏡片14，在左眼用影像光線為左旋的圓偏光的情況下，如果該圓偏光透射過左眼用鏡片14的相位差膜3，則由於相位差膜3具有相對於水準方向朝右旋一側傾斜約45°的快軸，所以圓偏光被轉換成偏光方向為水 準方向的直線偏光。在該情況下，由於右眼用影像光線是右旋的，所以如果該圓偏光透射過左眼用鏡片14的相位差膜3，則變為偏光方向為上下方向(與水準方向垂直的方向)的直線偏光。由於偏光板4的透射軸方向是水準方向，所以僅有左眼用影像光線的圓偏光轉換成的直線偏光(偏光方向是水準方向)透射過偏光板4，右眼用影像光線的圓偏光轉換成的直線偏光(偏光方向為上下方向)不透射過偏光板4。Further, in the case of the left-eye lens 14, when the left-eye image light is left-handed circularly polarized light, if the circularly polarized light is transmitted through the retardation film 3 of the left-eye lens 14, the retardation film 3 has a relative phase difference The horizontal direction is inclined toward the right-hand side by a fast axis of about 45°, so the circularly polarized light is converted into a polarized direction of water. Linear polarized light in the quasi-direction. In this case, since the right-eye image light is right-handed, if the circularly polarized light is transmitted through the retardation film 3 of the left-eye lens 14, the polarization direction is the vertical direction (the direction perpendicular to the horizontal direction). Linear polarized light. Since the transmission axis direction of the polarizing plate 4 is the horizontal direction, only the linearly polarized light (the polarization direction is the horizontal direction) into which the circularly polarized light of the left-eye image light is transmitted is transmitted through the polarizing plate 4, and the circular polarization conversion of the right-eye image light is performed. The linearly polarized light (the polarization direction is the up and down direction) is not transmitted through the polarizing plate 4.
由於僅有右眼用影像光線的圓偏光轉換成的直線偏光透射過右眼用鏡片13，僅有左眼用影像光線的圓偏光轉換成的直線偏光透射過左眼用鏡片14，所以通過戴上由所述結構構成的3D眼鏡11，佩戴者可以基於來自3D圖像顯示裝置的影像光線辨認3D立體圖像。Since only the linearly polarized light converted by the circularly polarized light of the right-eye image light is transmitted through the right-eye lens 13, only the linearly polarized light converted into the circularly polarized light of the left-eye image light is transmitted through the left-eye lens 14, so With the 3D glasses 11 composed of the above structure, the wearer can recognize the 3D stereoscopic image based on the image light from the 3D image display device.
此外，由於所述3D眼鏡11的右眼用鏡片13和左眼用鏡片14以三維的方式彎曲，所以可以成為設計性優異的產品。因此所述3D眼鏡11不僅可以用於觀看圖像顯示裝置，而且例如也可以用於室外等的偏光太陽鏡。Further, since the right-eye lens 13 and the left-eye lens 14 of the 3D glasses 11 are three-dimensionally curved, they can be excellent in design. Therefore, the 3D glasses 11 can be used not only for viewing an image display device but also for polarized sunglasses for outdoor use, for example.
所述3D眼鏡用光學片1的相位差膜3的主要成分使用了環烯烴共聚物或環烯烴聚合物。因此，該相位差膜3即使為了做成曲面形狀等進行熱成形等而被施加了熱和應力，也難以使雙折射性發生變化。即，由於環烯烴共聚物或環烯烴聚合物的光彈性係數小，因熱和應力造成相位差的變化小，所以即使在熱成形等時也容易維持雙折射性。因此，所述3D眼鏡用光學片1可以很好地用於具有所希望的雙折射性和所希望的曲面形狀的3D眼鏡用鏡片。所述3D眼鏡用光學片1通過以鏡片面成為與觀看的人的視線方 向大體垂直的方式做成曲面形狀，可以減少觀看的人的眼睛疲勞，有助於長時間使用。此外，所述3D眼鏡用光學片1通過做成所希望的曲面形狀等，可以提高眼鏡的外觀設計性。此外，由於所述3D眼鏡用光學片1把基材膜2層疊在相位差膜3的表面側，並使基材膜2的厚度在所述範圍內，所以通過基材膜2可以防止對相位差膜3造成損傷，並且可以提高所述3D眼鏡用光學片1的耐久性。其結果，所述3D眼鏡用光學片1可以很好地反復使用。The main component of the retardation film 3 of the optical sheet 1 for 3D glasses uses a cycloolefin copolymer or a cycloolefin polymer. Therefore, even if the retardation film 3 is subjected to heat and stress for thermoforming or the like in order to form a curved shape or the like, it is difficult to change the birefringence. In other words, since the photoelastic coefficient of the cycloolefin copolymer or the cycloolefin polymer is small, the change in phase difference due to heat and stress is small, so that birefringence can be easily maintained even at the time of thermoforming or the like. Therefore, the optical sheet 1 for 3D glasses can be suitably used for a lens for 3D glasses having a desired birefringence and a desired curved shape. The optical sheet 1 for 3D glasses passes through the lens surface to be the line of sight of the person watching Making a curved shape in a generally vertical manner can reduce the eye strain of the person watching and contribute to long-term use. Further, the optical sheet 1 for 3D glasses can improve the design of the glasses by forming a desired curved shape or the like. In addition, since the base film 2 is laminated on the surface side of the retardation film 3 and the thickness of the base film 2 is within the range, the optical film 1 for 3D glasses can prevent the phase from being passed through the substrate film 2. The poor film 3 causes damage, and the durability of the optical sheet 1 for 3D glasses can be improved. As a result, the optical sheet 1 for 3D glasses can be reused very well.
所述3D眼鏡由於使所述3D眼鏡用光學片1的基材膜2的主要成分的光彈性係數的絕對值在所述範圍內，所以可以減少基材膜2因熱和應力造成的相位差的變化，即使做成曲面形狀也可以得到所希望的雙折射性。In the 3D glasses, since the absolute value of the photoelastic coefficient of the main component of the base film 2 of the optical sheet 1 for the 3D glasses is within the range, the phase difference of the base film 2 due to heat and stress can be reduced. The change in the shape makes it possible to obtain a desired birefringence even if it is formed into a curved shape.
通過使所述3D眼鏡用光學片1的基材膜2的主要成分為丙烯酸樹脂，基本上可以消除基材膜2因熱和應力造成的相位差的變化，即使做成曲面形狀也可以得到所希望的雙折射性。此外，按照所述的結構，所述3D眼鏡用光學片1可以提高基材膜2的防止損傷的性能、耐久性等。此外，通過使所述3D眼鏡用光學片1的基材膜2的主要成分是環烯烴共聚物或環烯烴聚合物，可以減少基材膜2因熱和應力造成的相位差的變化，即使做成曲面形狀也可以得到所希望的雙折射性。By making the main component of the base film 2 of the optical sheet 1 for 3D glasses into an acrylic resin, it is possible to substantially eliminate the change in the phase difference of the base film 2 due to heat and stress, and it is possible to obtain a curved shape. The desired birefringence. Further, according to the above configuration, the optical sheet 1 for 3D glasses can improve the damage prevention performance, durability, and the like of the base film 2. In addition, by making the main component of the base film 2 of the optical sheet 1 for 3D glasses into a cycloolefin copolymer or a cycloolefin polymer, it is possible to reduce the change in the phase difference of the base film 2 due to heat and stress, even if The desired birefringence can also be obtained in a curved shape.
所述3D眼鏡11的相位差膜3的主要成分使用了環烯烴共聚物或環烯烴聚合物。因此，所述3D眼鏡11即使為了把右眼用鏡片13和左眼用鏡片14做成曲面形狀等進行熱成形等而施加了熱和應力，也難以使相位差膜3的雙折射性變化。因此，所述3D眼鏡11即使在把右眼用鏡片13 和左眼用鏡片14做成曲面形狀的情況下，也可以容易地得到所希望的雙折射作用。所述3D眼鏡11通過把右眼用鏡片13和左眼用鏡片14做成與觀看的人的視線方向大體垂直的鏡片形狀，也可以減少觀看的人的眼睛疲勞，有助於長時間使用。此外，通過把所述3D眼鏡11的右眼用鏡片13和左眼用鏡片14做成所希望的曲面形狀，可以提高外觀設計性。此外，由於把所述3D眼鏡11的基材膜2層疊在相位差膜3的表面側，使基材膜2的厚度在所述範圍內，所以通過基材膜2可以防止對相位差膜3造成損傷，並且可以提高所述3D眼鏡11的耐久性。其結果，所述3D眼鏡11可以很好地反復使用。The main component of the retardation film 3 of the 3D glasses 11 is a cyclic olefin copolymer or a cycloolefin polymer. Therefore, even if heat and stress are applied to the 3D glasses 11 by thermoforming or the like to form the right-eye lens 13 and the left-eye lens 14 into a curved shape, it is difficult to change the birefringence of the retardation film 3. Therefore, the 3D glasses 11 are even in the right eye lens 13 When the left-eye lens 14 is formed into a curved shape, a desired birefringence effect can be easily obtained. By making the right-eye lens 13 and the left-eye lens 14 into a lens shape that is substantially perpendicular to the line of sight of the person watching, the 3D glasses 11 can also reduce the eye strain of the person watching and contribute to long-term use. Further, by designing the right-eye lens 13 and the left-eye lens 14 of the 3D glasses 11 into a desired curved shape, the design can be improved. In addition, since the base film 2 of the 3D glasses 11 is laminated on the surface side of the retardation film 3 so that the thickness of the base film 2 is within the above range, the retardation film 3 can be prevented from passing through the base film 2. Damage is caused, and the durability of the 3D glasses 11 can be improved. As a result, the 3D glasses 11 can be reused very well.
此外，所述3D眼鏡11的右眼用鏡片13的快軸方向設置成：在一方向側，與所述右眼用鏡片13的偏光板4的透射軸方向所成的角度約為45°。左眼用鏡片14的快軸方向設置成：在另一方向側，與所述左眼用鏡片14的偏光板4的透射軸方向所成的角度約為45°，所以右眼用鏡片13僅透射過向一方向旋轉的圓偏光，左眼用鏡片14僅透射過向另一方向旋轉的圓偏光。因此，按照所述的3D眼鏡11，觀看的人可以用右眼觀看從立體圖像顯示裝置射出的右眼用影像光線，用左眼觀看左眼用影像光線，可以很好地辨認3D立體圖像。Further, the fast-axis direction of the right-eye lens 13 of the 3D glasses 11 is set such that the angle formed on the one-direction side with the transmission axis direction of the polarizing plate 4 of the right-eye lens 13 is about 45°. The direction of the fast axis of the left-eye lens 14 is such that the angle formed by the direction of the transmission axis of the polarizing plate 4 of the left-eye lens 14 is about 45° on the other direction side, so the right-eye lens 13 is only The circularly polarized light that is rotated in one direction is transmitted, and the left-eye lens 14 is transmitted only through the circularly polarized light that rotates in the other direction. Therefore, according to the 3D glasses 11 as described above, the person watching can view the right-eye image light emitted from the stereoscopic image display device with the right eye and the left-eye image light with the left eye, so that the 3D stereoscopic image can be well recognized. image.
此外，本發明的3D眼鏡用光學片和使用了它的3D眼鏡除了所述的方式以外，可以實施各種變更和改進的方式。例如3D眼鏡用光學片也可以在偏光板的背面側具備保護膜。作為該保護膜的主要成分可以使用與基材膜相同的 成分。此外，關於所述的保護膜的添加劑、光彈性係數、鉛筆硬度、延遲值等與基材膜的相同。作為保護膜的厚度(平均厚度)，較佳的是在基材膜的厚度以下。所述3D眼鏡用光學片通過具備所述的保護膜，可以進一步提高耐久性、容易處理性等。Further, the optical sheet for 3D glasses of the present invention and the 3D glasses using the same can be variously modified and improved in addition to the above-described modes. For example, the optical sheet for 3D glasses may have a protective film on the back side of the polarizing plate. As the main component of the protective film, the same as the substrate film can be used. ingredient. Further, the additive, the photoelastic coefficient, the pencil hardness, the retardation value and the like of the protective film described above are the same as those of the base film. The thickness (average thickness) of the protective film is preferably equal to or less than the thickness of the base film. By providing the above-mentioned protective film, the optical sheet for 3D glasses can further improve durability, ease of handling, and the like.
此外，在所述實施方式的3D眼鏡中，對使右眼用鏡片的偏光板的透射軸方向和左眼用鏡片的偏光板的透射軸方向為一致的情況進行了說明，但本發明不限於此。即，例如也可以配置成使右眼用鏡片的偏光板的透射軸方向和左眼用鏡片的偏光板的透射軸方向相互垂直(例如配置成相對於水準方向使一個向左旋方向傾斜45°，使另一個向右旋方向傾斜45°)，使右眼用鏡片的相位差膜的快軸方向和左眼用鏡片的相位差膜的快軸方向一致，把所述的各個快軸方向配置成與所述透射軸方向成約45°的角度(把快軸方向配置在水準方向上)。Further, in the 3D glasses of the above-described embodiment, the case where the transmission axis direction of the polarizing plate of the right-eye lens and the transmission axis direction of the polarizing plate of the left-eye lens are identical, but the present invention is not limited thereto. this. In other words, for example, the transmission axis direction of the polarizing plate of the right-eye lens and the transmission axis direction of the polarizing plate of the left-eye lens may be perpendicular to each other (for example, it may be arranged to be inclined by 45° to the left-hand direction with respect to the horizontal direction, The other direction is inclined by 45° in the right-hand direction, so that the fast axis direction of the retardation film of the right-eye lens coincides with the fast axis direction of the retardation film of the left-eye lens, and the respective fast axis directions are arranged so that An angle of about 45° to the direction of the transmission axis (the direction of the fast axis is arranged in the horizontal direction).
此外，所述3D眼鏡用光學片也可以進行適當的設計變更，在偏光板和相位差膜之間設置中間層。具體地說，可以把偏光板層疊黏接在基材層的一面上，把相位差膜層疊黏接在另一面上。Further, the optical sheet for 3D glasses may be appropriately modified in design, and an intermediate layer may be provided between the polarizing plate and the retardation film. Specifically, the polarizing plate may be laminated and adhered to one surface of the substrate layer, and the retardation film may be laminated and bonded to the other surface.
此外，所述3D眼鏡用光學片的相位差膜無需一定是1/4波片，也可以根據3D立體圖像顯示裝置適當進行變更。Further, the retardation film of the optical sheet for 3D glasses is not necessarily required to be a quarter-wave plate, and may be appropriately changed in accordance with the 3D stereoscopic image display device.
如上所述，本發明的3D眼鏡用光學片即使做成曲面形狀等，也可以得到所希望的雙折射性，並且具有優異的耐久性。因此，本發明的3D眼鏡用光學片和使用了它的3D眼鏡在觀看3D立體圖像顯示裝置時可以很好地使用。As described above, the optical sheet for 3D glasses of the present invention can obtain desired birefringence even when it is formed into a curved shape or the like, and has excellent durability. Therefore, the optical sheet for 3D glasses of the present invention and the 3D glasses using the same can be preferably used when viewing a 3D stereoscopic image display device.
1‧‧‧3D眼鏡用光學片1‧‧‧3D optical film for glasses
2‧‧‧基材膜2‧‧‧Base film
3‧‧‧相位差膜3‧‧‧ phase difference film
4‧‧‧偏光板4‧‧‧Polar plate
11‧‧‧3D眼鏡11‧‧‧3D glasses
12‧‧‧框架12‧‧‧Frame
13‧‧‧右眼用鏡片13‧‧‧Lens for right eye
14‧‧‧左眼用鏡片14‧‧‧Left eye lenses
圖1是表示本發明一個實施方式的3D眼鏡用光學片的示意剖視圖。Fig. 1 is a schematic cross-sectional view showing an optical sheet for 3D glasses according to an embodiment of the present invention.
圖2是表示使用了圖1的3D眼鏡用光學片的3D眼鏡的示意立體圖。Fig. 2 is a schematic perspective view showing 3D glasses using the optical sheet for 3D glasses of Fig. 1;
1‧‧‧光學片1‧‧‧ optical film
2‧‧‧基材膜2‧‧‧Base film
3‧‧‧相位差膜3‧‧‧ phase difference film
4‧‧‧偏光板4‧‧‧Polar plate
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011201634A JP2013061600A (en) | 2011-09-15 | 2011-09-15 | Optical sheet for three-dimentional (3d) glasses and 3d glasses |
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| TW201312166A TW201312166A (en) | 2013-03-16 |
| TWI470276B true TWI470276B (en) | 2015-01-21 |
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| TW101133703A TWI470276B (en) | 2011-09-15 | 2012-09-14 | 3D glasses with optical film and 3D glasses |
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| JP (1) | JP2013061600A (en) |
| KR (1) | KR20130029746A (en) |
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| CN103885194B (en) * | 2014-04-08 | 2016-07-13 | 深圳市华星光电技术有限公司 | 3D glasses, flexible displays and 3D display device |
| JP6938455B2 (en) * | 2014-05-07 | 2021-09-22 | デクセリアルズ株式会社 | Protective equipment for spectacle wearers |
| JP7107756B2 (en) * | 2018-06-05 | 2022-07-27 | ポリプラ・エボニック株式会社 | Sheet and sheet manufacturing method |
| US20220350172A1 (en) * | 2019-07-02 | 2022-11-03 | Lg Chem, Ltd. | Injection-Molded Product |
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| TWI225006B (en) * | 2001-06-01 | 2004-12-11 | Mitsubishi Gas Chemical Co | Palsitc forming bodies having optical color features and/or light deflecting features |
| TW200817179A (en) * | 2006-08-18 | 2008-04-16 | Toray Industries | Acrylic resin film |
| US20100033675A1 (en) * | 2008-08-05 | 2010-02-11 | Miyoshi Industrial Enterprise Inc. | Polarizing Lens and Method of Its Manufacture |
| CN101889236A (en) * | 2007-10-11 | 2010-11-17 | 瑞尔·D公司 | Curved optical filters |
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| CN101598830B (en) * | 2009-07-10 | 2010-09-08 | 深圳市三利谱光电科技有限公司 | Reusable three-dimensional polarized glass polarizer and glasses using same |
| US20110193248A1 (en) * | 2010-02-09 | 2011-08-11 | Roger Wen-Yi Hsu | Method and Appartus for Making Retarder in Stereoscopic Glasses |
| JP5871455B2 (en) * | 2010-02-23 | 2016-03-01 | 山本光学株式会社 | Circularly polarizing plate and circularly polarizing lens, and circularly polarizing glasses |
| CN201773194U (en) * | 2010-09-07 | 2011-03-23 | 深圳市盛波光电科技有限公司 | Polarizer for solid polarizing glasses |
| CN102135638A (en) * | 2011-03-07 | 2011-07-27 | 深圳市盛波光电科技有限公司 | Flexible glue type polarizer for 3D stereo glasses |
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- 2012-09-14 KR KR1020120102046A patent/KR20130029746A/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI225006B (en) * | 2001-06-01 | 2004-12-11 | Mitsubishi Gas Chemical Co | Palsitc forming bodies having optical color features and/or light deflecting features |
| TW200817179A (en) * | 2006-08-18 | 2008-04-16 | Toray Industries | Acrylic resin film |
| CN101889236A (en) * | 2007-10-11 | 2010-11-17 | 瑞尔·D公司 | Curved optical filters |
| US20100033675A1 (en) * | 2008-08-05 | 2010-02-11 | Miyoshi Industrial Enterprise Inc. | Polarizing Lens and Method of Its Manufacture |
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| TW201312166A (en) | 2013-03-16 |
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| JP2013061600A (en) | 2013-04-04 |
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