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

• Main Authors: Yi-Ting Chiu, 邱怡婷
• Other Authors: 黃振球
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/10035341188943305295

碩士 === 元智大學 === 化學工程與材料科學學系 === 99 === 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.