Lg Electronics Inc.

Gi Jin Kwon

Jin Woo Park

Hong Rae Cha

Ji Hoon Sohn

Yoon Kwan Lee

Woon Seo Shin

Joon Kwon Moon

Eun Seong Seo

Kwon Hue Son

There are provided an electromagnetic shielding sheet and a plasma display apparatus. The electromagnetic shielding sheet includes a base sheet; a first layer on a first surface of the base sheet, the first layer including first and second patterns crossing each other; and a second layer on a second surface of the base sheet, the second layer including a third pattern. The first and second patterns include a conductive material, the third pattern includes a light absorbing material, and at least one of the first and second patterns is grounded. Accordingly, conductive patterns for shielding electromagnetic waves and blocking external light are formed on a first surface of a base sheet, and patterns for blocking external light are formed on a second surface of the base sheet, so that the functions of shielding electromagnetic waves and blocking external light can be simultaneously performed using one sheet, and therefore, the ambient contrast ratio of a display image can be enhanced without increasing manufacturing costs. Further, patterns for shielding electromagnetic waves are directly formed a glass member of a filter or an upper substrate of the panel, so that processes of forming an electromagnetic shielding sheet can be easily performed.

Electromagnetic shielding sheet, plasma display apparatus using the same, and related technology

A plasma display panel and a manufacturing method thereof are disclosed. The panel includes a substrate having a plurality of discharge cells, and barrier ribs defining the discharge cells, the barrier ribs contain carbon in an amount of 0.1 to 10% by weight.

Plasma display panel with contrast-improving composition in the barrier layer

Automatic brightness control apparatus for a monitor which can provide a high picture quality by properly adjusting the back raster's brightness in accordance with the picture's brightness produced on a screen. According to the apparatus, the back raster's brightness is lowered in a relatively bright picture state, while it is heightened in a relatively dark picture state.

Automatic brightness control apparatus for a monitor

Growing community of inventors

Seoul, South Korea

Gi Jin Kwon