Samsung Electronics Co., Ltd.

Keunbum Lee

Seungjae Lee

Eunha Choi

Jeonghan Song

Chunsoon Park

Yong-Hun Kwon

Youngchol Lee

Yonghun Kwon

Sungho Jun

SeungJae Lee

The present disclosure provides a lighting device including a first lighting unit including a plurality of first light sources arranged on a first flat or curved surface, and configured to implement lighting of a first illuminance and of a first color, a second lighting unit including a plurality of second light sources arranged on a second flat or curved surface at least partially inclined with respect to the first lighting unit, the second lighting unit surrounding at least a part of the first lighting unit, and configured to implement lighting of a second illuminance at least partially different from the first illuminance and of a second color, at least one opening formed to penetrate through the first lighting unit, and at least one third lighting unit including a plurality of third light sources arranged on a third flat or curved surface, and configured to implement lighting of a third illuminance higher than the first illuminance and of a third color through the opening. The second lighting unit may be configured to implement the lighting of the second illuminance and the second color in conjunction with the third lighting unit.

Lighting device for simulating the sky

A diffusion lens includes a concave first lens surface, a convex second lens surface such that part of light incident on the first lens surface is output from the second lens surface, a side surface extending from a periphery of the second lens surface in a vertical direction of the diffusion lens such that part of the rest of the light incident on the first lens surface is output from the side surface, and a bottom surface extending from a periphery of the first lens surface in a horizontal direction of the diffusion lens to meet a periphery of the side surface. Rates of change of the first and second lens surfaces have the same sign. A pattern is formed on the side surface and the bottom surface to diffuse the light through the side surface and diffuse the light reflected by the bottom surface.

Diffusion lens and display device having same

Provided is a display device. The display device includes a display panel; a light source configured to emit light toward the display panel; a diffuser plate configured to diffuse incident light and disposed between the light source and the display panel; an optical lens configured to diffuse the light emitted by the light source; and at least one support provided adjacent to an edge of the optical lens and protruding toward the diffuser plate, the optical lens being integrally formed with the at least one support.

Display device

Growing community of inventors

Suwon-si, South Korea

Keunbum Lee