At CES 2015, Corning presented the glass product called "Iris", which is mainly used in the LGP of the edge-lit LCD television of the exclusive thin-type TV Later. In 2017, AGC Asahi Glass Co., Ltd. launched the XCV for the LGP of television and the SCHOTT BOROLIGHT LGP, all of which are about to enter the new era. At present, the glass LGP has been further developed from 2mm in 2015 to a thinner plate of 1.1mm. In fact, the most difficult problem to overcome in the promotion of the glass LGP is the issues encountered in the printing circuit process.

Today, glass LGP printing machine is used in the industry, the maximum size of printing is 85 inches, but when the glass LGP is getting thinner, the printing process is difficult to face is caused by ink color cast, dot diameter caused by the visible point Problems, so that the optical requirements of the glass light guide must be concessions, while the printing process, due to plug version, shrinkage, net marks and other issues caused by the process yield decline, so that the production cost of the glass LGP can not be reduced and then further affecting the glass LGP price.

n view of this situation, Hortek Crystal Co., Ltd. at the Science-Based Industrial Park in Hsin Chu City, using past experience in the LGP processing industry, introduced the glass processing can be machined in the glass LGP,PMMA, MS and other LGP by the laser processing equipment.

According to D.H. Chen vice president said that the current laser processing process can be the largest size up to 110 inches, can be processed at the same time two 65-inch glass LGP or a number of small size models, has been completed in the United States / Japan / German Department of glass samples of different manufacturers, and in the development of 65-inch models, the machine will reduce the level of color cast to 0.5%, but the brightness is still not lost to the printing process.

By laser processing in testing we found that the difference composition of the various glass LGP after the processed dot structure is also slightly different. The present stable production of the smallest outlets up to 60um in diameter. For achieving the future of the thin 0.7mm glass-LGP type of development requirements, we will continuously developing outlets less than 50um laser equipment, and with the less than 4mm ultra-thin curved TV in the future, the laser processing glass LGP after the thermal bending and to solve the current curved surface TV heavy parts, so laser processing will play an indispensable role in the new mainstream market for thinner displays in the future.




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