Samsung Electronics Co., Ltd.

Samsung Led Co., Ltd.

Samsung Electro-mechanics Co., Ltd.

Jong Rak Sohn

Chul Soo Yoon

Il Woo Park

Chang Hoon Kwak

Seul Gee Lee

Joon Ho Yoon

Sang Hoon Ahn

Chang Bun Yoon

Min Jung Park

Tae Hun Kim

Seung Jae Lee

Yong Il Kim

Tae Sung Jang

Dong Hyun Cho

Bo Kyung Kim

Yong Min Kwon

Seung Wan Chae

Sung Jun Im

Yun Seup Chung

Dong Kyun Yim

Young Mok Lee

Bo Kyoung Kim

A light emitting device package, comprises a light emitting structure having first and second electrodes insulated from each other; and a support structure. The support structure comprises: a first support electrode electrically connected to the first electrode of the light emitting structure; a second support electrode electrically connected to the second electrode of the light emitting structure, the second support electrode spaced apart from, and electrically insulated from, the first support electrode; and a support connection portion between the first support electrode and the second support electrode. The light emitting structure includes a protrusion portion that protrudes in a horizontal direction beyond a sidewall of at least one of the first support electrode and the second support electrode so that a void is present below the protrusion portion and above a plane extending from bottoms of the first and second support electrodes.

Light emitting device packages and methods of forming the same

An optical property evaluation apparatus includes: a light conversion filter converting light emitted from an LED chip or a bare LED package, which is to be evaluated, into a different wavelength of light, and emitting a specific color of light; and an optical property measurement unit receiving the specific color of light emitted from the light conversion filter and measuring the optical properties of the received light.

Apparatus and method for evaluating optical properties of LED and method for manufacturing LED device

A method of manufacturing a white light emitting device includes dividing a phosphor sheet into phosphor film units to be applied to individual light emitting diode (LED) devices, measuring light conversion characteristics of the respective phosphor film units, classifying the phosphor film units of the phosphor sheet into a plurality of groups according to measurement results of the light conversion characteristics and combining the phosphor film units classified into the plurality of groups and an LED device having predetermined light characteristics so as to obtain target color characteristics.

Method of manufacturing white light emitting device (LED) and apparatus measuring phosphor film

There is provided a semiconductor light emitting device including: a light transmissive substrate; a light emitting part; first and second electrodes electrically connected to the first and second conductivity type semiconductor layers, respectively; and a rear reflective part including a reflective metallic layer, and a light transmissive dielectric layer interposed between the light transmissive substrate and the reflective metallic layer.

Semiconductor light emitting device including rear reflective part

A method of manufacturing a semiconductor light emitting device, includes forming a conductive film on a surface of a semiconductor light emitting element. Phosphor particles are charged by mixing phosphor particles with an electrolyte having a metallic salt dissolved therein. The semiconductor light emitting element having the conductive film formed thereon is immersed in the electrolyte having the charged phosphor particles. A phosphor layer on the conductive film is formed by electrophoresing the phosphor particles. The conductive film is removed using wet etching.

Semiconductor light emitting device and method of manufacturing the same

Provided is a white light emitting diode (LED) including a blue LED chip; and yellow, green, and red light emitting phosphors that are coated on the blue LED chip at a predetermined mixing ratio and converts light, emitted from the blue LED chip, into white light.

White light emitting diode with yellow, green and red light emitting phosphors

A white light emitting device capable of expanding the wavelength range of a blue LED used for realizing white light. The white light emitting device according to the present invention includes a blue LED and a mixture of orange phosphor and green phosphor disposed above the blue LED.

White light emitting device

A white light emitting device including: a blue light emitting diode (LED); a green silicate phosphor formed on the blue LED; and a red sulfide phosphor with a surface coated with a silicone oxide layer, the red sulfide phosphor formed on the blue LED.

White light emitting diode with yellow, green and red light emitting phosphor

The present invention relates to phosphor blend for wavelength conversion and a white light emitting device using the same. The phosphor blend of the invention comprises three phosphors, A(PO)Cl:Eu, DSiO:Eu and MS:Eu at a composition where near ultraviolet radiation is converted into light positioned at a CIE coordinate (x, y), where 0.25&#x2266;x&#x2266;0.45 and 0.25&#x2266;y&#x2266;0.43, wherein A comprises at least one of Sr, Ca, Ba, and Mg, D comprises at least one of Ba, Sr, and Ca, and M comprises at least one of Sr and Ca. Furthermore, the present invention provides a new white light emitting device in combination of the phosphor blend and a near ultraviolet LED.

Phosphor blend for wavelength conversion and white light emitting device using the same

White light emitting diode

The present invention provides a phosphor blend for wavelength conversion and a white light emitting device using the phosphor blend. Further disclosed is a white light emitting phosphor blend comprising 0.5&#x2dc;18 wt % of A(PO)Cl:Eu(where A is at least one element selected from Sr, Ca, Ba and Mg), 0.7&#x2dc;14 wt of DSiO:Eu (where D is at least one element selected from Ba, Sr and Ca), and 68&#x2dc;98.5 wt % of GEu(WO):Sm (where G is at least one element selected from Li, Na and K; and s is a number between 1 and 5), based on the total weight of the phosphor blend.

Growing community of inventors

Gyunggi-do, South Korea

Jong Rak Sohn