切割刀輪對液晶顯示器玻璃強度的影響

The influences of scribing knife wheel on the glass strength of TFT-LCD

邱怡婷(Yi-Ting Chiu)

指導教授 ： 黃振球

元智大學/工程學院/化學工程與材料科學學系/碩士(2011年)

摘要

在液晶顯示器面板製造廠其生產的小尺寸液晶示器面板為了因應輕薄需求，必須將顯示器面板厚度由原來的0.5mm以薄化加工成0.4mm、0.3mm的厚度來達到客戶對產品需求，但客戶反應在製程或組裝過程中因為液晶顯示器的玻璃基板強度不佳，而產生玻璃破片的問題，因此玻璃基板在切割製程中如何提升其玻璃基板強度以達到國際大廠對玻璃強度要求之標準，本研究選用提升抗彎曲強度有較高貢獻度的刀輪種類(1)半滲透刀輪較高滲透刀輪提昇玻璃強度57.7%(2)以半滲透刀輪不同齒數分析對玻璃強度影響，齒數最低可提升玻璃強度高達64.8%，且產品可以達到70N以上的玻璃強度表現，有效增加液晶顯示器面板在切割製程中玻璃基板強度的提昇，可防止玻璃出貨過程中發生破裂情形，亦可符合客戶端對品質的要求。

關鍵字

TFT-LCD ； 玻璃強度 ； 切割製程 ； 切割刀輪

並列摘要

In TFT-LCD factory, which produce small size panel must thinning the thickness from 0.5mm to 0.4 or 0.3mm due to the demand for product from customers. However, some customers feedback that glass broken occurred due to the insufficient glass substrate strength during the manufacture or assembly process. Therefore, how to enhance the glass substrate strength during scribe process to fulfill customer’s criterion is important. This research is to choose different knife wheels which have higher contribution to anti-bending strength: (1) Half-permeation knife wheel can increase glass strength to 57.7% than high-permeation. (2) To analyze the influence of glass strength with different gear quantity of half-permeation knife wheel, the lowest quantity can increase to 64.8%, and product could reach over 70N in glass strength. It is effective increase in glass substrate strength of TFT-LCD during scribe process. Furthermore, not only avoid glass broken on shipment, but also fulfill the requirement for quality from customers.

並列關鍵字

TFT-LCD ； glass strength ； scribe process ； scribing knife wheel

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