Lg Electronics Inc.

Seoungho Lee

Junghoon Lee

Kabjin Hwang

Yongsu Kim

Changjong Kim

Cheol Yoon

Byeongheui Han

Gillhyun No

Seungwook Kown

The present invention is directed to a mold. The present invention is also directed to a device for processing the same, and a replica made therefrom. A device for processing the mold comprises a cutting unit carving a surface of the mold; a housing accommodating the cutting unit and having an aperture through which a portion of the cutting unit protrudes; at least one piezo-electric element disposed between the cutting unit and the housing; and a signal generator applying an electrical signal to the piezoelectric element. The mold comprises a plurality of linear peaks and grooves that are formed on a surface of the mold, wherein both or one of the peaks and grooves have random or periodic meandering-shape. A replica manufactured by the mold comprises a plurality of linear crests and valleys that are formed on a surface of the replica, wherein both or one of the crests and valleys have random or periodic meandering-shape.

Mold, a device for processing the same, and a replica made therefrom

An embodiment of this document relates to an optical sheet and a liquid crystal display using the same. An optical sheet in accordance with an aspect of this document may comprise a base film, and a plurality of projections including at least one of lenticular lens or micro lens, positioned on one surface of the base film. The projection may comprise a first resin and a plurality of first beads, and about 1 to 10 parts by weight of the first bead based on 100 parts by weight of the first resin.

Optical sheet and liquid crystal display using the same

An optical film and a backlight unit having the same are disclosed. The optical film includes a base film and a first prism disposed on the base film, the first prism having a first peak height and a second prism disposed on the base film, the second prism having a second peak height. A difference between the first peak height and the second peak height is substantially 1 &#x3bc;m to 10 &#x3bc;m.

Optical film and backlight unit having the same

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Cheongju-si, South Korea

Seoungho Lee