Samsung Electronics Co., Ltd.

Chung-Hun Ha

Jong-Hyuk Lee

Bong-Jun Lee

Yu-Jin Kim

Shin-Tack Kang

Jin-Suk Seo

In a gate driving unit and a display apparatus, a first gate driving circuit is connected to a first end of a plurality of gate lines, a second gate driving circuit is connected to a second end of the gate lines, and they are substantially simultaneously turned on. The first and second gate driving circuits apply a first gate signal having a first pre-charging period and a first active period, which is adjacent to the first pre-charging period, to odd-numbered gate lines and apply a second gate signal having a second pre-charging period and a second active period, which is adjacent to the second pre-charging period, to even-numbered gate lines.

Display apparatus having a pre-charging function

A magnetic head for vector recording/playing capable of recording in multiple directions to increase recording density. In the magnetic head according to the present invention, a body is formed to have four poles, each of which is wound with a coil. Accordingly, 3-bit data, in which magnetic domains are arranged in eight directions may be recorded/reproduced, to thereby record a large amount information in one recording area of the track, and reduce the data transfer rate.

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Seoul, South Korea

Chung-Hun Ha