A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.

Claims

32 · 6 independent · depth 6

32 granted claims

›1.independentA nanophosphor sheet comprising:na base layer,core-shell phosphors surrounded by a coating layer to form coated core-shell phosphors that are disperse…

›2.independentA nanophosphor sheet comprising:na base layer,a core-shell phosphor dispersed in the base layer,a coating layer surrounding the core-shell phosphors, …+2

›5.independentA backlight device comprising:na light source emitting light,a light guide plate receiving and guiding the light,a display panel on the light guide pl…+12

›6.↳ 5The backlight device of claim 5, further comprising a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell pho…d2+4

›11.↳ 5The backlight device of claim 5, further comprising:nbarrier layers positioned on both surfaces of the base layer.d2+3

›15.↳ 5The backlight device of claim 5, wherein:nthe core-shell phosphor is formed of any one of CdSe/ZnS, InP/ZnS, ZnS:Mn/ZnS, PbSe/PbS, CdSe/CdS, CdTe/CdS,…d2

›16.↳ 5The backlight device of claim 5, further comprising:nan optical film including a diffuser sheet positioned on the nanophosphor sheet.d2

›17.↳ 5The backlight device of claim 5, wherein:nthe base layer is formed of at least one of a silicon resin and a urethane resin.d2

›18.independentA backlight device comprising:na light source emitting light, anda light guide plate receiving and guiding the light, wherein the light guide plate in…+4

›23.independentA backlight device comprising:na plurality of light sources generating light,a light guide plate guiding the light,an optical mixing member positioned…+4

›28.independentA backlight device comprising:na plurality of light sources positioned on a substrate,a display panel on the plurality of light sources, anda diffuser…+4

Classifications

5 codes

IPC · International Patent Classification

Section B — Performing operations; transporting

B32B5/16

Section F — Mechanical engineering; lighting; heating; weapons

F21V7/04
F21V8/00

Section G — Physics

G09F13/04
G02F1/1335

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2.8 y

1,028 days filing → grant

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non-final + final

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no RCE

Examiner

Ali Alavi

art unit 2875 · TC 2800

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20140056024 A1	27 Feb 2014

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