Light condensing film, liquid-crystal panel and backlight a well as manufacturing process for light-condensing film
First Claim
1. A light-condensing layered film comprising at least a light-condensing film and a long light-guiding film, wherein the light-condensing film comprises an array of light collectors made of an organic resin is formed on a long light-diffusing film with a flexibility of 40 mm or less of a curvature radius and a coefficient of thermal expansion of 50 ppm/°
- C. or less and a surface in the light collector facing the surface contacting with the light-diffusing film is flat and has a smaller area than the surface contacting with the light-diffusing film, and the light-guiding film is laminated, on the surface facing the light diffusing film in the light collection in the light-condensing film.
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Accused Products
Abstract
A conventional liquid crystal display comprises a number of components, so that a manufacturing cost cannot be reduced. Furthermore, a large-area substrate has problems in shipping. According to this invention, a liquid-crystal panel is prepared by forming individual optically functional films, a TFT device and a light-emitting device on a long thin film and then laminating the film by a transfer process. A base film to be a substrate in a liquid-crystal panel preferably has a thickness of 10 μm to 200 μm, a curvature radius of 40 mm or less as a measure of flexibility and a coefficient of thermal expansion of 50 ppm/° C. or less. Furthermore, it more preferably gives a variation of ±5% or less in mechanical and optical properties to a thermal history at 200° C.
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Citations
34 Claims
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1. A light-condensing layered film comprising at least a light-condensing film and a long light-guiding film, wherein
the light-condensing film comprises an array of light collectors made of an organic resin is formed on a long light-diffusing film with a flexibility of 40 mm or less of a curvature radius and a coefficient of thermal expansion of 50 ppm/° - C. or less and
a surface in the light collector facing the surface contacting with the light-diffusing film is flat and has a smaller area than the surface contacting with the light-diffusing film, and the light-guiding film is laminated, on the surface facing the light diffusing film in the light collection in the light-condensing film. - View Dependent Claims (31)
- C. or less and
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10. (canceled)
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25. A process for manufacturing a light-condensing layered film comprising the steps of
filling an irregularity in a support corresponding to the irregularity of the light collector with an organic resin, and transferring the filling resin to the long light-diffusing thin film and formed the irregularity of light corrector on the light-condensing film and, laminating a long light-guiding film on a surface in the light corrector facing the surface contacting with the light-diffusing layered film. a light-guiding film is laminated, on the surface facing the light diffusing film in the irregularity of light collector in the light-condensing film.
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26. A process for manufacturing a light-condensing layered film comprising the steps of
forming a thin film made of an organic resin on a long light-diffusing film and transferring an irregularity of the light collector to the thin film and a light-guiding film is laminated, on the surface facing the light diffusing film in the irregularity of light collector in the light-condensing film.
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30. (canceled)
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32. A light-condensing layered film comprising at least a light-condensing film and a long light-guiding film, wherein
the light-condensing film comprises an array of light collectors made of an organic resin is formed on a long light-diffusing film with a flexibility of 40 mm or less of a curvature radius and a coefficient of thermal expansion of 50 ppm/° - C. or less and
a surface in the light collector facing the surface contacting with the light-diffusing film is flat and has a smaller area than the surface contacting with the light-diffusing film, and the light-guiding film is laminated, on the surface facing the light diffusing film in the light collector in the light-condensing film, with the light-guiding film having a coefficient of thermal expansion of 50 ppm/°
C. or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
- C. or less and
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33. The backlight as claimed 24, wherein
a light source is placed adjacently to at least one plane substantially perpendicular to the plane on which the light collector in the optical guide is placed.
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34. The process for manufacturing a light-condensing layered film as claimed 25, wherein
the step of transferring the filling resin to the long light-diffusing thin film and formed an array of light correctors on the light-condensing film comprises the step of curing the organic resin under pressure.
Specification