Title:
NON-ALKALI GLASS SUBSTRATE AND MANUFACTURING METHOD OF NON-ALKALI GLASS SUBSTRATE
Document Type and Number:
Japanese Patent JP2017165607
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a non-alkali glass substrate capable of reducing variation of thermal shrinkage in a TFT array manufacturing process when used for high precision display applications for mobile and a manufacturing method of the non-alkali glass substrate.SOLUTION: There is provided a non-alkali glass substrate having absolute value of difference between thermal shrinkage in any direction on one location by selecting any two locations on one major surface and thermal shrinkage in a direction orthogonal to the on another location of 2 ppm or less. The shrinkage is calculated by measuring deformation amount in a measurement direction of the glass substrate before and after a heat treatment by increasing temperature of the glass substrate from ordinary temperature to 600°C at 100°C/h, holding at 600°C for 80 min and decreasing temperature from 600°C to ordinary temperature at 100°C/h.SELECTED DRAWING: Figure 1
Inventors:
TAKIGUCHI TETSUSHI
INOUE SHUNJI
ONO KAZUTAKA
TOKUNAGA HIROFUMI
AKIYAMA JUN
KATO YASUZANE
TANIGUCHI TAKEHIDE
INOUE SHUNJI
ONO KAZUTAKA
TOKUNAGA HIROFUMI
AKIYAMA JUN
KATO YASUZANE
TANIGUCHI TAKEHIDE
Application Number:
JP2016051002A
Publication Date:
September 21, 2017
Filing Date:
March 15, 2016
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C03C3/091; C03B18/02; C03B25/08; C03C3/085; C03C3/087; G02F1/1333
Domestic Patent References:
| JP2016029001A | 2016-03-03 | |||
| JP2012136431A | 2012-07-19 | |||
| JP2008184335A | 2008-08-14 | |||
| JP2007230817A | 2007-09-13 |
Foreign References:
| WO2015041246A1 | 2015-03-26 | |||
| WO2007008924A2 | 2007-01-18 | |||
| WO2011136122A1 | 2011-11-03 |
Attorney, Agent or Firm:
Nozomi Watanabe
Haruko Sanwa
Takemoto Yoichi
Haruko Sanwa
Takemoto Yoichi