Lg Electronics Inc.

Misook Kim

Seungmin Seen

Taehyung Kim

Seonghyok Kim

Sangcheon Kim

Chilkeun Park

Seunghyun Lee

Joonsung Sohn

Kangsun Lee

Hyekyoung Seo

Oedong Kim

Kyoungwoo Jo

Jeongseok Ki

Boyeon Sim

Provided is a dust measurement apparatus for accurately measuring the dust concentration of two spaces and minimizing the possibility of noise generation, comprising: a dust sensor; a body housing having the dust sensor loaded therein, and having an inner space; a first outer hole and a second outer hole, which are respectively formed at two points of the body housing so as to connect the outside and the inner space; a first fan and a second fan, which are provided at the positions corresponding to each of the first outer hole and the second outer hole and driven so as to form a flow toward the inner space from the outside; and a control part for selectively driving the first fan or the second fan.

Dust measurement apparatus

A display device including a liquid crystal panel configured to selectively transmit light for each pixel of the liquid crystal panel; a light guide plate provided behind the liquid crystal panel; a light source array including a plurality of LEDs arranged in a row at first lateral side of the light guide plate, and configured to emit light to the first lateral side of the light guide plate; and a mirror provided in a second lateral side of the light guide plate and configured to reflect the light having reached the second lateral side back along the light guide plate. Further, a rear surface of the light guide plate includes a stepped unevenness having first surfaces configured to reflect light toward the liquid crystal panel and second surfaces configured to reflect light toward the mirror, and a thickness of the light guide plate increases in a first direction from the first lateral side to the second lateral side such that the second lateral side of the light guide plate is thicker than the first lateral side of the light guide plate.

Display device and mobile terminal

A mobile terminal comprising a stereoscopic display unit outputting a stereoscopic image is disclosed. In one embodiment the stereoscopic display unit comprises a display element configured to periodically display left and right images, a refractive lens unit disposed to overlap with the display element and configured to change refractive characteristics thereof, and a controller configured to control the refractive characteristics of the refractive lens unit such that a refraction direction of transmitted light is periodically changed to make the left and right images face in different directions.

Stereoscopic display device and mobile device having the same

An apparatus for planar lighting configurable with light emitting devices is disclosed. The apparatus for planar lighting includes a plurality of light sources arranged on a circuit board; a reflective layer disposed on the circuit board; a transmission regulation layer disposed on the reflective layer and provided with a hole pattern allowing light to be transmitted therethrough, wherein a size of the hole disposed proximate to the light source is smaller than a size of the hole disposed between adjacent two light sources; a spacer disposed between the reflective layer and the transmission regulation layer such that the spacer maintains a distance between the reflective layer and the transmission regulation layer, wherein the spacer comprises at least one protrusion formed by bending a plate member; and an optical sheet disposed on the transmission regulation layer.

Apparatus for planar lighting

Growing community of inventors

Seoul, South Korea

Misook Kim