Samsung Electro-mechanics Co., Ltd.

Samsung Electronics Co., Ltd.

Jae Joon Yoon

Ok Hee Shin

Young Taek Kim

Hong Min Kim

Jae Woo Cho

Sung Soo Park

Kyung Hyun Kim

Jae Hee Lee

Dong Kyun Ryu

Sung Uk Lee

Hyoun Soo Shin

Peel Sik Jeon

Kyung Taeg Han

Joon Ho Yoon

Tsuyoshi Tsutsui

Yu Dong Kim

Seung Heun Yang

Yun Seop Shin

Joon Gil Lee

Yoon Suk Han

In Joon Pyeon

Tai Sung Kim

Tomio Inoue

Youn Ik Nam

Kwang Hun Song

There is provided a light emitting device including: a package body having first and second circumferential surfaces and a plurality of side surfaces formed therebetween, the package body defined into first and second level areas including the first and second circumferential surfaces, respectively; first and second external terminal blocks each having an electrical contact part; an LED chip disposed between the first and second external terminal blocks in the first level area and having an electrode surface where first and second electrodes are formed; and wires electrically connected to first and second electrodes of the LED chip to the electrical contact parts of the first and second external terminal blocks, respectively.

Small size light emitting device and manufacturing method of the same

There is provided an alternating current (AC) detection circuit for a power supply, the circuit including: a rectifying part rectifying an AC voltage; a voltage division part dividing the voltage rectified by the rectifying part according to a preset division ratio; a voltage stabilization circuit part stabilizing the voltage divided by the voltage division part; a comparing part comparing the voltage stabilized by the voltage stabilization circuit part with an internal reference voltage and generating an input detection signal when the stabilized voltage is higher than the internal reference voltage; and an output part outputting an AC detection signal when the input detection signal is inputted from the comparing part.

AC detection circuit for power supply

There is provided a driver for a plasma display panel having a separated board structure that can reduce parasitic resonance by shortening the length of a cable used for power transmission by separating a board having a Y electrode switch thereon from a board having an X electrode switch thereon. A driver for a plasma display panel having a separated board structure according to an aspect of the invention may include: a first board having a predetermined mounting area, and mounted with a power supply section having predetermined inductance and converting commercial AC power into predetermined driving power using the inductance, and a first electrode switch section, switching the driving power from a power conversion section and supplying the switched driving power to a first electrode of a plasma display panel; and a second board having a predetermined mounting area, physically separated from the first board, and mounted with a second electrode switch section receiving the driving power from the power supply section through a cable and switching the driving power to supply the switched driving power to a second electrode of the plasma display panel.

Driver for plasma display panel having separated board structure

Light-emitting diode

Growing community of inventors

Gyunggi-do, South Korea

Jae Joon Yoon