Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Sunghyun Han

Hyun Woo Koo

Wonjae Joo

Sunjin Song

Hoon Song

Sunghoon Lee

Ju Hyun Kim

Beom Seok Kim

Hyunjeong Jeon

Sun Jin Song

Won Suk Chang

Hyun Seok Choi

Hong-Seok Lee

Sung Dug Kim

Jung Kwuen An

Provide is a light emitting device including a reflective layer including a phase modulation surface, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode and configured to emit visible light that includes light of a first wavelength and light of a second wavelength that is shorter than the first wavelength, and a second electrode disposed on the organic emission layer, wherein the reflective layer and the second electrode form a micro cavity configured to resonate the light of the first wavelength, and wherein the planarization layer includes a light absorber configured to absorb the light of the second wavelength.

Light emitting device including light absorbers and display apparatus including the same

Light emitting device with light absorbers and display apparatus including the same

A light emitting device includes a first electrode; a white organic light emission structure provided on the first electrode; a second electrode provided on the white organic light emission structure; and a reflective layer provided on an opposite side of the first electrode from the white organic light emission structure and including a first reflective region, a second reflective region, and a third reflective region having different heights from one another and forming different separation distances from the second electrode. A plurality of recesses may be provided in at least one of the first reflective region, the second reflective region, and the third reflective region on a surface of the reflective layer, and thus the color purity of the light emitting device may be improved.

White organic light emitting device comprising reflective layer and display apparatus including the same

Light emitting device and display apparatus including the same

A polyimide that is a reaction product of a diamine represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, and a tetracarboxylic dianhydride represented by Chemical Formula 3: 

Polyimide, composition for preparing polyimide, article including polyimide, and display device including the article

A diffractive optical element including a diffraction layer including a plurality of optical axes along an in-plane direction, wherein the diffraction layer includes an anisotropic material that satisfies one of Relationship Equations 1A to 3A&#x394;(450 nm)&#x3c;&#x394;(550 nm)&#x2264;&#x394;(650 nm)&#x2003;&#x2003;Relationship Equation 1A&#x394;(450 nm)&#x2264;&#x394;(550 nm)&#x3c;&#x394;(650 nm)&#x2003;&#x2003;Relationship Equation 2A&#x394;(450 nm)=&#x394;(550 nm)=&#x394;(650 nm)&#x2003;&#x2003;Relationship Equation 3Awherein, in Relationship Equations 1A to 3A,

Diffractive optical element and device

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Pohang-si, South Korea

Sunghyun Han