JP2019038740A - 非対称化学強化 - Google Patents
非対称化学強化 Download PDFInfo
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- JP2019038740A JP2019038740A JP2018163457A JP2018163457A JP2019038740A JP 2019038740 A JP2019038740 A JP 2019038740A JP 2018163457 A JP2018163457 A JP 2018163457A JP 2018163457 A JP2018163457 A JP 2018163457A JP 2019038740 A JP2019038740 A JP 2019038740A
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- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
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Abstract
Description
本特許協力条約の特許出願は、2016年5月19日に提出された米国仮特許出願第62/339,062号の「Asymmetric Chemical Strengthening」、2016年7月14日に提出された米国仮特許出願第62/362,578号の「Asymmetric Chemical Strengthening」、2016年7月29日に提出された米国仮特許出願第62/368,787号の「Asymmetric Chemical Strengthening」、2016年7月29日に提出された米国仮特許出願第62/368,792号の「Asymmetric Chemical Strengthening」に対して優先権を主張する。これらの出願の内容は全て引用により本明細書に組み込む。
記載される実施形態は、概してガラス物品の非対称化学強化に関する。より具体的には、本実施形態は、携帯電子デバイスで使用されるカバーガラスの強度および安全を補正することに関する。
化学強化
化学処理前の予熱によるガラスの高密度化
好適な縁部形状の化学強化
応力プロファイル
非対称な化学強化
マスキングまたはコーティングによる非対称な強化
熱利用非対称化学強化
ペーストおよび熱による局所的非対称強化
電界支援非対称化学強化
事前屈曲の導入による非対称強化
異なるクラッド層の非対称強化
化学強化ガラス物品バンドル
濃度勾配を有する非対称強化ガラス物品
応力プロファイルを調整するための機械的および/または化学的修正
ガラス物品製造時の非対称化学強化
破断パターンを管理するための非対称化学強化
衝撃によって引き起こされる破損、または破損の伝播を低減するためのカバーガラスの設計
非対称応力プロファイルの平坦化
成形による非対称化学強化の補償
応力分布に基づく最適化されたガラス物品設計
イオン交換化学強化における圧縮の深さは、破損誘導による破壊に抵抗するガラス物品の能力と相関する。この点で、圧縮の深さを最大化することは、携帯電子デバイスに使用するために、より耐久性があり且つ信頼性の高いガラスを製造する上で重要な要因である。
Claims (40)
- ガラス物品であって、
ガラスに形成され、第1の応力パターンを有する第1の区域と、
前記ガラスに形成され、第2の応力パターンを有する第2の区域と、を備え、
前記第1の応力パターンと前記第2の応力パターンが異なる結果、前記ガラス物品が全体的な応力不均衡を有する、ガラス物品。 - 前記全体的な応力不均衡が前記ガラス物品を撓ませる、請求項1のガラス物品。
- 材料を更に備え、
前記材料が前記ガラス物品に動作可能に装着されることによって、材料とガラス物品との組み合わせが略平坦になるように、前記ガラス物品における前記全体的な応力不均衡が相殺される、請求項2のガラス物品。 - 前記ガラスに形成され、第3の応力パターンを有する第3の区域を更に備え、前記ガラス物品の前記全体的な応力不均衡を軽減するように、前記第3の応力パターンが、前記第1の応力パターンおよび前記第2の応力パターンのうち少なくとも1つに対抗する、請求項1のガラス物品。
- 前記ガラスに形成される前記第1の区域が、前記ガラスに形成される前記第2の区域よりも高密度である、請求項1のガラス物品。
- 前記ガラスの前記第1の区域に少なくとも1つのイオン拡散バリアコーティングを更に備える、請求項1のガラス物品。
- 前記イオン拡散バリアが二酸化ケイ素を含む、請求項6のガラス物品。
- 引張応力対圧縮応力が非対称に異なる複数の区域であって、少なくとも1つの所定の幾何的形状を維持するように構成される複数の区域を備える、ガラス物品。
- 前記ガラス物品が上面と下面を有し、
非対称の引張応力対圧縮応力を有する前記所定の幾何的形状が前記上面と下面の両方に存在する、請求項8のガラス物品。 - 1つ以上のイオン拡散バリアコーティングを更に備える、請求項9のガラス物品。
- 前記所定の幾何的形状が、少なくとも1つの略平坦側を有する、請求項8のガラス物品。
- 前記略平坦側が前記ガラス物品の上面である、請求項11のガラス物品。
- 圧縮応力の異なる複数の区域を含むガラス物品を非対称に強化することを含む方法であって、
前記ガラス物品が携帯電子デバイスで使用される、方法。 - 前記ガラス物品を非対称に強化した後、前記ガラス物品が略平坦となるように、前記非対称強化を補うように前記ガラス物品を形成することを更に含む、請求項13の方法。
- 前記ガラス物品の一部を予熱することを更に含み、前記ガラス物品の前記予熱部分が、前記ガラス物品の第1のガラス密度部分と、前記ガラス物品の第2のガラス密度部分と、を有し、前記ガラス物品の前記第1のガラス密度部分が、前記ガラス物品の前記第2のガラス密度部分よりも高密度である、請求項13の方法。
- 前記非対称強化中に前記ガラス物品の前記複数の区域のうちの1つ以上を局所的に加熱することによって、前記1つ以上の区域における前記ガラス物品の非対称強化を促進することと、
前記ガラス物品を急冷することと、
を更に含む、請求項13の方法。 - 材料を前記ガラス物品に動作可能に装着することを更に含み、
前記ガラス物品が不規則的な応力を有し、
前記材料が前記不規則的な応力によって変形に耐える、請求項13の方法。 - 前記材料が透明である、請求項17の方法。
- 前記ガラス物品がカバーガラスであり、
前記携帯電子デバイスが携帯電話である、請求項17の方法。 - 前記非対称強化が、カリウムイオンを用いた前記ガラス物品の非対称化学強化を含む、請求項19の方法。
- 電子デバイス用カバーガラスであって、
前記カバーガラスに形成され、第1の応力パターンを有する第1の区域と、
前記カバーガラスに形成され、第2の応力パターンを有する第2の区域と、
前記カバーガラスに形成され、第3の応力パターンを有する第3の区域と、を備え、
前記第1の応力パターン、前記第2の応力パターン、前記第3の応力パターンが相互に異なり、
前記第1の区域と前記第2の区域が連続して、前記第3の区域を互いに囲む、カバーガラス。 - 前記第1の区域が、前記カバーガラスの1つ以上の角領域に対応し、
前記第2の区域が、前記カバーガラスの1つ以上の周縁領域に対応し、
前記第3の区域が、前記カバーガラスの中央領域に対応する、請求項21のカバーガラス。 - 前記第1の区域における前記カバーガラスの少なくとも一部が湾曲縁を画定する、請求項22のカバーガラス。
- 前記第1の区域の前記応力パターンが第1の表面応力を有し、
前記第2の区域の前記応力パターンが第2の表面応力を有し、
前記第1の表面応力が前記第2の表面応力を超える、請求項23のカバーガラス。 - 前記第3の区域の前記応力パターンが第3の表面応力を有し、
前記第2の表面応力が前記第3の表面応力を超える、請求項24のカバーガラス。 - 前記第3の区域の外面の一部が略平坦である、請求項25のカバーガラス。
- 前記第1の区域が第1の縁部を画定し、
前記第2の区域が第2の縁部を画定し、
前記第1の縁部と前記第2の縁部が斜角を成す、請求項21のカバーガラス。 - 電子デバイスであって、
ハウジングと、
前記ハウジング内に少なくとも部分的に配置されるディスプレイと、
前記ディスプレイ上に配置され、少なくとも3つの区域を画定するカバーガラスであって、前記少なくとも3つの各区域が異なる応力パターンを有するカバーガラスと、を備え、
前記異なる応力パターンが協働して、前記カバーガラスの割れの拡大を防止する、
電子デバイス。 - 前記異なる応力パターンがそれぞれ、非対称である引張応力対圧縮応力プロファイルを有する、請求項28の電子デバイス。
- 前記少なくとも3つの区域の第1の区域が、前記カバーガラスの1つ以上の角部に対応し、
前記少なくとも3つの区域の第2の区域が、前記カバーガラスの周縁領域に対応し、
前記第1の区域と前記第2の区域が、前記カバーガラスの周縁に連続領域を形成する、請求項29の電子デバイス。 - 前記少なくとも3つの区域の第3の区域が、共通面によって囲まれ、前記共通面を共有し、前記連続領域が前記第1の区域と前記第2の区域によって形成され、
前記第3の区域が、略平坦である外面を有する、請求項30の電子デバイス。 - 第1の区域においてガラス物品を非対称に強化することと、
第2の区域において前記ガラス物品を非対称に強化することと、
第3の区域において前記ガラス物品を非対称に強化することと、
を含む方法であって、
前記第1の区域が、前記ガラス物品に第1の応力をもたらす第1の応力パターンを有し、
前記第2の区域が、前記ガラス物品に第2の応力をもたらす第2の応力パターンを有し、
前記第3の区域が、前記ガラス物品に第3の応力をもたらす第3の応力パターンを有し、
前記第1の応力が前記第2の応力を超え、
前記第2の応力が前記第3の応力を超える、方法。 - 前記第1の区域において前記ガラス物品を非対称に強化することが、前記第2の区域よりも前記第1の区域に大きい割合でカリウム塩を加えることを含む、請求項32の方法。
- 前記第2の区域において前記ガラス物品を非対称に強化することが、前記第3の区域よりも前記第2の区域に大きい割合でカリウム塩を加えることを含む、請求項32の方法。
- 前記第3の区域において前記ガラス物品を非対称に強化することが、前記第3の区域の外面が略平坦を保つようにカリウム塩を加えることを含む、請求項34の方法。
- 前記第3の区域の前記外面が、前記ガラス物品の上面である、請求項35の方法。
- 前記ガラス物品の前記第1の区域を、ある温度まで熱的に加熱することを更に含み、
前記熱的加熱により、前記熱的加熱の不在下で前記第1の区域において前記ガラス物品を非対称に強化することによって生じる応力よりも、前記第1の応力が増大する、請求項32の方法。 - 前記温度が、前記ガラス物品の高密度化温度未満である、請求項37の方法。
- 前記温度が、前記ガラス物品の高密度化温度超である、請求項37の方法。
- 前記熱的加熱が、マイクロ波加熱またはレーザ加熱によって実行される、請求項39の方法。
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EP3408241A1 (en) | 2018-12-05 |
WO2017201411A1 (en) | 2017-11-23 |
US20170334769A1 (en) | 2017-11-23 |
TW201741257A (zh) | 2017-12-01 |
CN109293253A (zh) | 2019-02-01 |
KR20180125954A (ko) | 2018-11-26 |
CN109293253B (zh) | 2022-07-01 |
JP6807400B2 (ja) | 2021-01-06 |
EP3459915A1 (en) | 2019-03-27 |
CN114828491A (zh) | 2022-07-29 |
US11247937B2 (en) | 2022-02-15 |
JP2019508358A (ja) | 2019-03-28 |
US20170334770A1 (en) | 2017-11-23 |
KR20180126466A (ko) | 2018-11-27 |
KR102122145B1 (ko) | 2020-06-12 |
CN109153599B (zh) | 2022-05-03 |
KR102185889B1 (ko) | 2020-12-03 |
EP3459915B1 (en) | 2021-12-01 |
TWI655160B (zh) | 2019-04-01 |
JP6654224B2 (ja) | 2020-02-26 |
CN109153599A (zh) | 2019-01-04 |
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