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Quantum dot light enhancement substrate and lighting device including same

專利號(hào)
US10096744B2
公開日期
2018-10-09
申請(qǐng)人
SAMSUNG ELECTRONICS CO., LTD.（KR Gyeonggi-Do）
發(fā)明人
Seth Coe-Sullivan; Peter Kazlas
IPC分類
H01L33/06; H01L33/04; H01L33/42; H01L33/50; H01L33/58; H01L33/60; H01L51/50; H01L51/52; H01L51/56; H05B33/14; H01L27/32; H01L31/0352
技術(shù)領(lǐng)域
quantum,dots,qd,in,light,ccm,material,qds,certain,emitting
地域： Suwon-si

摘要

A component including a substrate, at least one layer including a color conversion material including quantum dots disposed over the substrate, and a layer including a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material including quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein. In certain embodiments, a lighting device includes a component described herein.

說明書

In certain embodiments, the component further includes an array of outcoupling features on a surface of the substrate SUB opposite the color conversion material CCM.

In certain embodiments, at least a portion of the outcoupling features are configured to have predetermined outcoupling angles.

In certain embodiments, at least a portion of the outcoupling features include a substantially hemispherical surface.

In certain embodiments, at least a portion of the outcoupling features include a curved surface.

In certain embodiments, at least a portion of the features are printed.

In certain embodiments, features can be printed by screen-printing, contract printing, or inkjet printing.

In certain embodiments of films, components, and devices described herein, color conversion material CCM further comprises a host material in which the quantum dots are dispersed. A non-limiting list of examples of host materials are described below.

In certain embodiments, color conversion material CCM further comprises a binder in which the quantum dots are dispersed.

In certain embodiments, color conversion material CCM has an index of refraction greater than or equal to the index of refraction of the conductive material.

權(quán)利要求

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