Title:
METHOD FOR MANUFACTURING DISPLAY GLASS SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2017/002632
Kind Code:
A1
Abstract:
When manufacturing a display glass substrate with a low thermal contraction coefficient, a sheet glass formed by a forming process is cooled until the temperature of a central portion thereof in a width direction reaches 300°C. In doing so, the average cooling speed of a central region, which is inside the sheet glass in the width direction compared to both end parts of the sheet glass in the width direction and is a region including the central portion, in a temperature region of the central portion of less than 450°C to 300°C or higher is slower than the average cooling speed of the central region in a temperature region other than the above temperature region during the cooling process.
Inventors:
NAKASHIMA KIMIHIKO (KR)
SHIOJI YUSUKE (KR)
SHIOJI YUSUKE (KR)
Application Number:
PCT/JP2016/067889
Publication Date:
January 05, 2017
Filing Date:
June 16, 2016
Export Citation:
Assignee:
AVANSTRATE INC (JP)
AVANSTRATE KOREA INC (KR)
AVANSTRATE KOREA INC (KR)
International Classes:
C03B25/12; C03B17/06; G02F1/1333
Domestic Patent References:
WO2012133838A1 | 2012-10-04 | |||
WO2014157649A1 | 2014-10-02 |
Foreign References:
JP2009502706A | 2009-01-29 | |||
JP2012197185A | 2012-10-18 |
Attorney, Agent or Firm:
GLOBAL IP TOKYO (JP)
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