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Glass with improved total pitch stability

A glass and performance technology, applied in glass forming, glass forming, glass manufacturing equipment, etc., can solve problems such as difficult control and freezing

Inactive Publication Date: 2015-12-16
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the method has some advantages, some fabrication techniques (for example, fusion processes that result in rapid quenching of glass sheets from the melt and higher temperature structures) are "frozen"
While partially controlled cooling is possible with this manufacturing process, it is difficult to control

Method used

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  • Glass with improved total pitch stability
  • Glass with improved total pitch stability
  • Glass with improved total pitch stability

Examples

Experimental program
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Effect test

Embodiment

[0092] The following examples are set forth below to illustrate methods and results in accordance with the disclosed subject matter. These examples are not intended to be inclusive of all aspects of the subject matter disclosed herein, but are intended to illustrate representative methods and results. These examples are not intended to exclude equivalents and variations of the invention that would be apparent to those of ordinary skill in the art.

[0093] Efforts have been made to ensure accuracy with respect to numbers (eg, amounts, temperature, etc.), but some errors and deviations must be accounted for. Unless indicated otherwise, temperature is in °C or is at ambient temperature, and pressure is at or near atmospheric. The compositions themselves are given in mole % based on oxide and have been normalized to 100%. There are numerous variations and combinations of reaction conditions such as component concentrations, temperature, pressure and other reaction ranges and co...

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Abstract

Described herein are alkali-free, boro-alumina silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess excellent compaction and stress relaxation properties.

Description

[0001] Related Application Cross Reference [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Application Serial No. 61 / 740,790, filed December 21, 2012, and U.S. Provisional Application Serial No. 61 / 909,612, filed November 27, 2013, herein This application is based on and is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to compositions and methods for making glass sheets that can be used in high performance video and information displays. Background technique [0004] The production of liquid crystal displays, such as active matrix liquid crystal displays (AMLCDs), is very complex and the properties of the substrate glass are extremely important. First and foremost, glass substrates for AMLCD device production need to have tight control over their physical dimensions. [0005] In the field of liquid crystal displays, polysilicon-based thin film transistors (TFTs) are preferred beca...

Claims

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Application Information

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IPC IPC(8): C03B17/06C03C3/087C03C3/091C03C3/093
CPCC03B17/06C03C3/087C03C3/091C03C3/093C03B17/064C03B25/00
Inventor D·C·埃兰B·F·波顿A·J·艾利森T·J·基克辛斯基M·波图扎克
Owner CORNING INC
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