Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Samsung Corning Precision Glass Co., Ltd.

Dong Chin Lee

Seok Hyun Nam

Tae Gon Kim

Young Sun Kim

Jae Ho Lee

Seoung Jae Im

Kubota Shunichi

Hyun Jin Kim

Young-keun Lee

Byungchoon Yang

Seung Hwan Baek

Hyuk Hwan Kim

Gicherl Kim

Min Wang

So Jin Ryu

Yang Byungchoon

A display device includes a display panel and a light emitting device to supply light to the display panel. The light emitting device includes a light emitting element emitting a first light and a fluorescent layer receiving the first light, transmitting a portion of the first light, converting a remaining portion of the first light to a second light having a wavelength range different from the first light, and emitting the second light. The second light emitted by the fluorescent layer has a full width at half maximum equal to or larger than 110 nanometers (nm) and a light emission spectrum having a peak wavelength within a wavelength range of about 530 nm to about 560 nm. The second light has a light emission intensity corresponding to 10 to 30 percent of a peak light emission intensity of the first light.

Light emitting device and display device having the same

A light source module includes first and second light sources. The first light source includes a blue light-emitting body emitting blue light and a red fluorescent material disposed around the blue light-emitting body emitting red light by virtue of being excited by the blue light. The second light source is disposed adjacent to the first light source, and includes a green light-emitting body emitting green light. The blue and green light-emitting materials may include a light-emitting diode (LED) chip including substantially the same material. Accordingly, since a variation of light efficiency of the light source module with respect to temperature is small, a color feedback system may be omitted, and color reproducibility may be high.

Light source module and display apparatus having the same

Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency.

Method for preparing nanophosphor from metal hydroxy carbonate and nanophosphor prepared by the method

Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps.

Metal hydroxy carbonate nanoparticle coated phosphor and method for preparing the same

Growing community of inventors

Cheonan-si, South Korea

Dong Chin Lee