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Method-for-manufacturing-optical-disks

Analog active matrix emissive display

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OF PREFERRED EMBODIMENT A monitor according to the present invention will be apparent from the ...

Displaying device having two separate light receiving portions for receiving the external light and the light emitted by a light source

What is claimed: 1. A displaying device comprising: a liquid crystal display having a back surface; ...

Method for manufacturing optical disks

Details

Inventors: Fujimori, Jiro; Motokawa, Masaaki; Maruyama, Haruhisa;
Assignee: Pioneer Corporation (Tokyo, JP); Pioneer Video Corporation (Yamanashi, JP)
Primary Examiner: Ball; Michael W.
Assistant Examiner: Haran; John T.
Attorney, Agent or Firm: Morgan, Lewis & Bockius LLP

A method is disclosed for manufacturing an optical disk with multiple layers efficiently with improved reliability. An optically transparent sheet is laminated on a first information recording surface, and an ultraviolet light hardened resin is formed thereon which has a second information recording surface.

DETAILED DESCRIPTION The present invention was developed in view of such circumstances.
Its object is to provide an optical disk with an intermediate layer more uniform in thickness than before and with high reliability.
A method for manufacturing an optical disk according to a first aspect of the present invention is characterized by comprising the steps of: forming a first semi-transparent reflective film for reflecting part of the incident light and partly transmitting the incident light onto a first information recording surface of an optically transparent substrate with the first recording surface on one side thereof; laminating an optically transparent sheet on the first reflective film, preparing a stamper with a second information recording surface; applying a liquid-state resin to one of the optically transparent sheets and the stamper, superimposing the optically transparent substrate on the stamper in a space of reduced pressure with the optically transparent sheet and the liquid-state resin interposed therebetween, and pressing the optically transparent substrate and stamper against each other with a predetermined pressure; forming, on the optically transparent sheet, a ultraviolet hardened resin layer to which the second information recording surface is transferred, by irradiating via the optically transparent substrate and the first reflective film with ultraviolet light after the pressure applied to the superimposed optically transparent substrate and stamper has been brought back to an atmospheric pressure; and forming a second reflective film with reflectance higher than that of the first semi-transparent reflective film on the second information recording surface of the resin layer.
A method for manufacturing an optical disk, according to a second aspect of the present invention, is the method for manufacturing an optical disk according to the first aspect of the present invention, characterized by further comprising, before laminating the optically transparent sheet, the step of applying a liquid-state resin to the first semi-transparent reflective film to form a protection film which is hardened by being irradiated with ultraviolet light

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