STABLE GLASS SHEET AND METHOD FOR MAKING SAME

申请公布号：

US2010126221(A1)

申请号：

US20090357441

申请日期：

2009.01.22

申请公布日期：

2010.05.27

申请人：

DANIELSON PAUL STEPHEN;ELLISON ADAM JAMES;KICZENSKI TIMOTHY J

发明人：

DANIELSON PAUL STEPHEN;ELLISON ADAM JAMES;KICZENSKI TIMOTHY J.

分类号：

C03B25/12

主分类号：

C03B25/12

摘要：

A process for making glass sheet with low compaction suitable for high temperature applications, such as low-temperature polysilicon-based TFT displays, and glass sheets thus made. The glass sheet desirably has an anneal point of at least 765° C., a CTE at most 42×10−7/° C. The process involves cooling the glass melt form a temperature corresponding to a viscosity of 1.0×1010 poise to a temperature corresponding to a viscosity of 1.0×1015 poise at a cooling rate CR, where CR≧5° C./second. The absolute value of the measured compaction of the glass sheet desirably is at most 175 ppm upon being re-heated to 675° C. for a period of time.