Lg Display Co., Ltd.

Jeong Joon Lee

Sang Chul Lee

Jeong Kweon Park

Jangcheol Kim

Jinwook Kwak

Ik Hyun Kuon

Ju Ik Hong

Tagyoung Choi

Chang Bo Shim

Young Min Hwang

Disclosed herein is an apparatus for processing a substrate that forms a hole in a substrate while reducing a burr in the hole so that a module device can be inserted into the hole to reduce the thickness of a display device, and the display device using the apparatus. The apparatus for processing the substrate comprises a body configured to operably be rotatable, and a cylindrical cutting tip at an end of the body. The bottom surface of the cutting tip is in an acute angle with respect to a contact surface of the substrate to allow formation of a groove at the substrate.

Apparatus for processing a substrate and display device by using the same

A grinder wheel for a liquid crystal display device and a method of fabricating a liquid crystal display device using the same are provided. Two grinding surfaces are formed in the grinder wheel used for grinding a substrate so that it is possible to improve grinding characteristics, to increase the life of the grinder wheel, and to reduce grinding time. The method includes cutting the substrates attached to each other into a plurality of unit liquid crystal display panels, loading the unit liquid crystal display panel on a grinding table, grinding a predetermined region of the liquid crystal display panel using a grinder wheel including two grinding surfaces of a first grinder surface for primary grinding and a second grinder surface for secondary grinding, and unloading the ground liquid crystal display panel.

Grinder wheel for liquid crystal display device and method of fabricating liquid crystal display device using the same

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Daejeon, South Korea

Jeong Joon Lee