Samsung Electronics Co., Ltd.

Seok-chan Hong

Young-chol Lee

Sung-Tae Kim

Won-yong Lee

Jeong-ho Nho

Jong-hoi Kim

Kyoung-choul Jang

Yong-dok Cha

Sang-hyun Sohn

Kee-uk Jeon

An illuminating unit and a display apparatus including the illuminating unit are provided. The illuminating unit generates and emits light to a display element of the display apparatus, and includes a light source; a uniformizing unit which uniformizes light from the light source and includes a plurality of uniformizing lenses arranged on an optical path; a condensing unit which condenses light from the uniformizing unit to emit the light to the display element and includes a plurality of condensing lenses sequentially arranged on the optical path, and the uniformizing unit and the condensing unit are arranged based on a width of one of a plurality of cell lenses forming the uniformizing lens and a width of an image displayed in the display element.

Illuminating unit and display apparatus including the same

A projection display apparatus includes: an illumination optical unit which emits beams; an image display element which modulates the beams according to image information; a spatial-beam changing unit which changes spatial positions of the beams emitted from the illumination optical unit; and a uniform-beam distribution unit, disposed between the spatial-beam changing unit and the image display element, which uniformly distributes the beams. The spatial-beam changing unit includes a moveable prism, a movement of which changes the spatial positions of the beams emitted therefrom.

Projection display apparatus comprising a spatial-beam changing unit which changes spatial positions of beams

A collimate lens assembly is provided which includes the first collimate lens which has a total reflection surface and a plurality of refracting surfaces, and the second collimate lens which is connected to the hole, and the second collimate lens has a greater refraction ratio than the first collimate lens.

Collimate lens assembly

Growing community of inventors

Yongin-si, South Korea

Seok-chan Hong