| 摘要 |
Provided is a method of manufacturing a thin glass plate, including: pouring a molten glass (Gm) into an overflow groove (2) formed in a top of a forming body (1); allowing the molten glass (Gm) which is overflown from the overflow groove (2) over both sides of the overflow groove (2) to flow downward along an outer surface portion (4) having a substantially wedge-like shape of the forming body (1); and fusing and integrating the molten glass at a lower end of the forming body (1), thereby forming a thin glass plate (G) having a thickness equal to or less than 500 μm. In doing so, in order to suppress a releasing amount of a primary zircon crystal grain included in a surface of the forming body (1), a viscosity of the molten glass (Gm) flowing on an outer surface of the forming body (1) is controlled to be equal to or higher than 3,000 dPa·s and equal to or lower than 30,000 dPa·s throughout the outer surface of the forming body (1).
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