Lg Electronics Inc.

Kang Yoon Kim

Jung Hoon Lee

Sang Gon Lee

Chang Jong Kim

Hong Rae Cha

Ji Hoon Sohn

Woon Seo Shin

Woo Sung Jang

Sam Je Cho

Kab Jin Hwang

Seoung Won Lee

Seoung Ho Lee

Hyun Seok Cho

Young Kee Seo

The plasma display device comprises a plasma display panel and the filter which is formed at a front of the plasma display panel, wherein the filter includes an external light shielding sheet which comprises a base unit, and a plurality of pattern units formed on the base unit, wherein a bottom of the pattern units, which is wider than a top of the pattern units, comprises a concave having a curvature. The device can improve bright room contrast. Also, the sharpness of the display images may be enhanced by reducing the bleeding phenomenon of the display images as well as the adhesiveness of the filter may be enhanced by forming the bottom of the pattern units of the external light shielding sheet as a concave shape in which the center area is depressed into the inside.

Filter and plasma display device thereof

A backlight unit having a polarization film for performing the function of a reflective polarization film, wherein the backlight unit includes a light source, an optical film and a polarization film. The light source emits a light having a certain wavelength, the optical film is located proximate to the light source to transmit the light outputted from the light guiding plate in a certain direction, and the polarization film is located proximate to the optical film. Here, the polarization film has a UV curing resin and lines disposed on the UV curing resin, and polarizes the light transmitted from the optical film. The backlight unit manufactures the polarization film by using an UV curing resin and a metal substance, and thus the manufacture period of the polarization film may be reduced enabling the polarization film to be manufactured in great quantities.

Backlight unit and method of manufacturing a polarization film employed in the same

The present invention relates to a prism sheet having a side which is perpendicular to the normal of a light guiding plate. The prism sheet includes a prism sheet base film and a plurality of linearly aligned prisms. The prisms are formed on one side of the prism sheet base film. Here, one side of each prism is perpendicular to the prism sheet base film. The prism sheet condenses a light outputted from a light guiding plate using its internal total reflection, and so the efficiency of the light is enhanced.

Prism sheet and backlight unit including the same

A separator sheet for manufacturing an electric double layer capacitor, and a method for manufacturing the electric double layer capacitor using the same, are provided. According to an embodiment, the separator sheet for manufacturing the electric double layer capacitor comprises: a plurality of separators; and a resin film holding the plurality of separators, wherein the separators are disposed in the resin film at a predetermined interval.

Separator sheet and method for manufacturing electric double layer capacitor using the same

Growing community of inventors

Chungcheongbuk-do, South Korea

Kang Yoon Kim