Samsung Display Co., Ltd.

Powertron Eng'g Co., Ltd.

Rae-Young Kim

Taek-Sun Shin

Seungin Baek

Sun Hee Oh

Young-Min Park

Jaejoong Kwon

Young-Jun Seo

Eui Jeong Kang

Seunghwan Chung

Seung-Mo Kim

Kwang-wook Choi

Sang Woo Ha

Dong-Yeol Yeom

Jinsung Choi

Seung In Baek

Sunhee Oh

So Jeong La

Gi-Taek Kim

Deuk-Soo Kim

A display apparatus includes a display panel, a light source, a light guide plate, and a receiving part. The display panel is configured to receive light to display an image. The light source is configured to emit the light. The light guide plate is configured to receive and guide the light to the display panel. The receiving part is configured to hold the light source and the light guide plate. The light guide plate includes a first light guide part and a second light guide part. The first light guide part includes a first material. The second light guide part includes a second material different from the first material. The second light guide part has a tapered shape and is coupled to the first light guide part.

Method of manufacturing a light guide plate and display apparatus including the same

A prism sheet includes: a first portion including a prism elongated in a first direction; and a second portion including a prism elongated in a second direction different from the first direction. The second direction is vertical to a light incident surface of a light guide plate of a backlight unit, a light source of the backlight unit faces the light incident surface of the light guide plate, and the prism sheet overlaps a light emitting surface of the light guide plate.

Prism sheet, backlight unit including the same, and method of manufacturing the same

Provided is a back-light unit. The back-light unit includes: a reflective layer; a light transmitting plate including a plurality of light emitting diodes; and an optical member disposed on the light transmitting plate and separated from the light transmitting plate with an air layer therebetween, in which light generated from the light emitting diode is reflected to the reflective layer and then passes through the light transmitting plate to reach the optical member.

Back-light unit and liquid display device including the same

A backlight unit includes a light guide plate and a light source unit. The light guide plate includes an exit surface which has a polygonal shape, a lower surface which faces the exit surface, and side surfaces which connect the exit surface and the lower surface. The light guide plate guides a light such that that light exits from the exit surface. The light source unit includes a plurality of light sources which provide the light to the light guide plate. The light guide plate includes a protrusion which protrudes from an end of the lower surface in a direction opposite to the exit surface. The protrusion includes a first inclination surface which is connected to one of the side surfaces, and a second inclination surface which connects the first inclination surface and the lower surface to each other.

Backlight unit and display apparatus having the same

A display apparatus includes; a plurality of light sources which emit a light, a display panel which displaying an image using the light, a light guide plate which guides the light emitted from the light sources to the display panel, and a plurality of reflection members that are spaced apart from each other and coupled with a first side of the light guide plate and a second side of the light guide plate facing the first side to reflect light traveling inside the light guide plate to the first and second sides, wherein the plurality of light sources include; a plurality of first light sources, each of the plurality of first light sources being arranged corresponding to an area between two adjacent reflection members of the plurality of reflection members on the first side and a plurality of second light sources each being arranged corresponding to an area between two reflection members on the second side.

Backlight assembly and display apparatus having the same

An emergency power diagnosis system measures the exact value of impedance voltage (Vis) from an AC actual waveform (V) includes circuits and software operable to measure the effective resistance of battery internal impedance to determine the expected life of a battery string. The system is configured to determine the cause of aging progress in advance and determine by unmanned monitoring the real-time status of emergency power system at a remote site.

Diagnosis for expected life of emergency power apparatus

Growing community of inventors

Seoul, South Korea

Rae-Young Kim