- 专利标题: Display cover glass and display cover glass fabrication method
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申请号: US14301690申请日: 2014-06-11
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公开(公告)号: US09840435B2公开(公告)日: 2017-12-12
- 发明人: Seiki Ohara , Kazutaka Ono , Tetsuya Nakashima , Hiroyuki Ohkawa
- 申请人: ASAHI GLASS COMPANY, LIMITED
- 申请人地址: JP Chiyoda-ku
- 专利权人: ASAHI GLASS COMPANY, LIMITED
- 当前专利权人: ASAHI GLASS COMPANY, LIMITED
- 当前专利权人地址: JP Chiyoda-ku
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2011-276203 20111216
- 主分类号: C03C21/00
- IPC分类号: C03C21/00 ; G06F1/16 ; G06F3/041 ; C03C3/085 ; C03C3/093 ; C03C23/00
摘要:
The present invention provides a cover glass for a display, having high durability to slow cracking and strong abraded strength even though a compressive stress is large and a depth of a compressive stress layer is deep. The present invention relates to a cover glass for a display, in which a depth of a compressive stress layer (DOL) is 30 μm or more, a surface compressive stress is 300 MPa or more, a position (HW) at which a compressive stress is half of a value of the surface compressive stress is a position of 8 μm or more from a glass surface, and the depth of the compressive stress layer (DOL) and the position (HW) at which the compressive stress is half of the value of the surface compressive stress satisfy the following formula: 0.05≦HW/DOL≦0.23 (1).
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