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Title:
GLASS SHEET, DISPLAY DEVICE, AND GLASS SHEET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/149512
Kind Code:
A1
Abstract:
The present invention pertains to a glass sheet that comprises a first principal surface, a second principal surface, and an end surface connecting the first principal surface and the second principal surface and that has a compressive stress layer. In the glass sheet, the longest crack length in a region, which ranges from a portion located apart from an edge of the end surface at the first principal surface side by a length equal to 9% of the thickness toward the second principal surface side to a portion located apart from the edge of the end surface at the first principal surface by a length equal to 91% of the thickness toward the second principal surface side, is 5-20 μm, and the longest crack length in a region, which ranges from an edge of the end surface at the second principal surface side to a portion located apart from the edge of the end surface at the second principal surface side by a length equal to 6% of the thickness toward the first principal surface side, satisfies a specific formula.

Inventors:
MASUDA YUICHI (JP)
ITO MASABUMI (JP)
EZURA HIROYUKI (JP)
Application Number:
PCT/JP2021/048430
Publication Date:
July 14, 2022
Filing Date:
December 24, 2021
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
C03C21/00; C03C3/083; G09F9/00
Domestic Patent References:
WO2014045809A12014-03-27
WO2017208995A12017-12-07
WO2016194916A12016-12-08
Foreign References:
JP2014001123A2014-01-09
JP2016003158A2016-01-12
JP2017508691A2017-03-30
CN111204991A2020-05-29
JP2021001081A2021-01-07
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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