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Low boron and barium free alkaline earth aluminosilicate glass and its application

An aluminosilicate glass and alkaline earth technology, applied in glass forming, glass forming, glass manufacturing equipment, etc., can solve problems such as pixel pitch deformation, defects, deviations, etc.

Active Publication Date: 2021-03-26
KORNERSTONE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In general, shrinkage and / or deformation of the substrate leads to film non-uniformity and device defects such as pixel pitch distortion and deviation

Method used

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  • Low boron and barium free alkaline earth aluminosilicate glass and its application
  • Low boron and barium free alkaline earth aluminosilicate glass and its application
  • Low boron and barium free alkaline earth aluminosilicate glass and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0113] Preparation of test samples

[0114] An alkaline earth aluminosilicate glass composition comprising the ingredients shown in Table 1 below was prepared as follows:

[0115] Table 1

[0116] Oxide mol% SiO 2

70.50 Al 2 o 3

11.50 B 2 o 3

3.20 CaO 9.90 MgO 1.00 SrO 3.80 SnO 2

0.10

[0117] Batch materials as indicated in Table 2 were weighed and mixed before being added to 2 liter plastic containers. The batch material used is of chemical reagent grade quality.

[0118] Table 2

[0119]

[0120] The grain size of the sand is between 0.045 and 0.25mm. A tumbler is used to mix raw materials to create a homogenous batch and to break up soft clots. The mixed batch was transferred from the plastic container to an 800ml platinum-rhodium alloy crucible for melting the glass. The platinum-rhodium alloy crucible was placed in an alumina support and loaded in a high temperature furnace operating at...

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PUM

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Abstract

a low content of B 2 o 3 , high content of Al 2 o 3 and the control ratio (B 2 o 3 +CaO+MgO+SrO) / Al 2 o 3 Low boron, barium-free, alkaline earth aluminosilicate glass composition. This glass composition is suitable for low temperature polysilicon thin film transistors on substrates with high glass strain point temperatures.

Description

technical field [0001] This disclosure relates to low boron, barium free alkaline earth aluminosilicate glasses and applications thereof. These glasses find application in the processing of low-temperature polysilicon thin-film transistors. Background technique [0002] Flat panel displays are very common in today's commercial electronic devices. The next generation of handheld electronic devices will place increasing demands on their displays. Displays that can meet these requirements will enable a wide variety of commercial applications. Therefore, the properties of the glass used to fabricate flat panel displays has become an important design consideration, especially with the rapid development of thin film transistor liquid crystal display (TFT-LCD) technology. For example, TFT-LCD display technology requires high-quality glass substrates with an alkali ion content of less than 0.1 wt% to avoid contamination of semiconductor thin film materials with alkali metal ions....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/091C03C3/076
CPCC03C3/091C03C3/087C03C4/00C03B17/064
Inventor J·Y·丁P·梁
Owner KORNERSTONE MATERIALS TECH