Innochips Technologies Co., Ltd.

Laminex Co., Ltd.

Seong Bae Park

In Kil Park

Tae Hyung Noh

Young Sul Kim

Hyun Chul Jung

Pyo Eon Kim

Kyung Tae Kwon

Method and apparatus for heat treating and processing an edge of a large thin glass sheet used for a liquid crystal TV or the like. The method for processing an edge of a glass substrate according to the present invention is characterized by cutting an edge of a glass substrate by bringing a heated member into contact with the edge of the glass substrate that is cooled, and then moving the heated member. According to the present invention, provided is a new method of removing the edge of glass in a strip shape without producing dust. Also, according to the method of the present invention, since it is unnecessary to heat the glass at a high temperature, a large furnace is not necessary. Further, since a post-processing operation such as preheating or annealing is unnecessary, the manufacturing process is highly simplified.

Method and apparatus for processing edge of glass by using high frequency induction heater

Disclosed is a portable piezoelectric speaker including a body configured to be coupled to and separated from a rear surface of an electronic device, and a piezoelectric speaker module coupled to a predetermined area of the body, wherein the piezoelectric speaker module includes a piezoelectric device, and a vibration transfer member provided to be in contact with at least one area of the piezoelectric device and to be spaced apart from at least one surface of the piezoelectric device.

Portable piezoelectric speaker and electronic device having the same

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Ansan-si, South Korea

Seong Bae Park