Lg Display Co., Ltd.

Sangrae Lee

SangHyuck Bae

HyungUk Jang

MinHo Sohn

ChongHun Park

JaeJung Han

Suwoong Lee

ByungChun Yu

Dongun Kim

Jongseong Choi

An image display device includes a display element selectively implementing a 2D image and a 3D image and a patterned retarder. The display element includes a pixel array including a plurality of subpixels, which are respectively formed at crossings of column lines and row lines. The patterned retarder includes a plurality of first retarders, each of which transmits light from the display element as a first polarization component, and a plurality of second retarders, each of which transmits the light from the display element as a second polarization component. The first retarders and the second retarders are alternatively arranged.

Image display device

A multi-touch sensing method and apparatus are described. The multi-touch sensing method includes: storing, in a memory, coordinate values of a first dead zone and coordinate values of a second dead zone existing between first and second pair of image sensors, respectively; calculating coordinate values of touch points from images obtained by the first and second pairs of image sensors; comparing the coordinate values of the touch point and the coordinate values of the dead zones to identify the location of the dead zone to which the touch point belongs; selecting the coordinate values calculated in the third step if the coordinate values of the touch point belong to the first dead zone; and selecting the coordinate values calculated in the second step if the coordinate values of the touch point belong to the second dead zone.

Liquid crystal display

Growing community of inventors

Pohang-si, South Korea

Sangrae Lee