Production system and production method for manufacturing recordable Blue-ray disc

Abstract

The invention discloses a production system for manufacturing a recordable Blue-ray disc. The production system comprises a transfer belt, a first sputtering station, a second sputtering station, a dye coating mechanism, a spin-coating curing mechanism, a finishing mechanism and a testing mechanism, wherein the finishing mechanism comprises a first finishing mechanism and a second finishing mechanism; the dye coating mechanism is arranged between the first sputtering station and the second sputtering station; the first finishing mechanism is arranged between the second sputtering station and the spin-coating curing mechanism; the spin-coating curing mechanism is connected with the testing mechanism; the spin-coating curing mechanism comprises a first spin-coating curing mechanism, a second spin-coating curing mechanism and a third spin-coating curing mechanism; the first spin-coating curing mechanism is connected with the first finishing mechanism; the second finishing mechanism is arranged between the first spin-coating curing mechanism and the second spin-coating curing mechanism; and the third spin-coating curing mechanism is connected with the testing mechanism. The system greatly improves the quality of the recordable Blue-ray disc and reduces the production cost. In addition, the invention also discloses a production method for the recordable Blue-ray disc.

Description

technical field [0001] The invention relates to an optical disc production system and production method, in particular to a production system for manufacturing Blu-ray recording discs and a production method for manufacturing Blu-ray recording discs using the production system. Background technique [0002] With the continuous improvement of people's living standards, the continuous development of consumption views, more high-definition movies appear, high-definition TV (High Definition TV, referred to as HDTV) will be popular all over the world, due to the data transmission rate of HDTV in digital satellite broadcasting ( The Data Transfer Rate (DTR for short) is at least 23Mbps, which is more than twice the rate of the current Digital Video Disc (DVD). 133 minutes), the usable capacity of the recording disc must exceed more than 20GB, so people have higher and higher requirements for the storage capacity of the disc. [0003] Blu-ray disc (Blu-ray Disc, abbreviated as BD)...

AI Technical Summary

Problems solved by technology

[0005] Since the structure of Blu-ray Disc completely breaks away from the "0.6mm+0.6mm" design of DVD discs, it adopts a new "1.1mm substrate + 0.1mm protective layer" structure. The 0.1mm protective layer structure overcomes the problem that DVD discs cannot read data due to birefringence when reading data. At the same time, it also greatly reduces the problem of phase difference when the laser irradiation angle deviates from the normal state of 90°, thus effectively solving the problem of DVD in the normal state. When using a 0.6mm thick light-transmitting substrate, the problem of data regeneration error has been plagued; when manufacturing BD, it is required to inject a 1.1mm thick substrate first, and then cover a light-transmitting 0.1mm protective layer on the substrate to obtain a complete For BD discs, most of the current processes are to prepare a 0.1mm protective layer in advance and then paste it on a 1.1mm substrate to make a BD disc. Although this method can ensure the uniformity of the 0.1mm protective layer, it needs to use a special 0.1mm protective layer production equipment, offline bonding, etc., thus increasing the production cost of Blu-ray discs; in addition, because Blu-ray discs use shorter wavelengths (450nm) and larger numerical apertures, their impact on flatness The requirements are very high. The vertical accuracy of the laser reading plane is required to be controlled within the range of ±2um. Therefore, Blu-ray discs have very strict requirements on the uniformity and thickness accuracy of the protective layer. In order to meet this thickness tolerance, a stronger disc needs to be realized. manufacturing accuracy, however, this causes a reduction in yield for the current given manufacturing conditions, thereby causing a significant increase in disc manufacturing costs

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