A light emitting structure includes a first hole injection layer, a first organic light emitting layer, a charge generation layer, a second hole injection layer, a second organic light emitting layer, an electron transfer layer, and a blocking member. The light emitting structure has first, second, and third sub-pixel regions. The first organic light emitting layer may be on the first hole injection layer. The charge generation layer may be on the first organic light emitting layer. The second hole injection layer may be on the charge generation layer. The second organic light emitting layer may be on the second hole injection layer. The electron transfer layer may be on the second organic light emitting layer. The blocking member may be at at least one of the first to the third sub-pixel regions.

Claims

25 · 2 independent · depth 5

25 granted claims

›1.independentA display device comprising:na substrate having a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region;a first electrode on…+9

›2.↳ 1The display device of claim 1, wherein the light emitting structure comprises:na first hole injection layer on the first electrode;a charge generation…d2+8

›3.↳ 2The display device of claim 2, wherein the optical distance controlling insulation layer has different thicknesses in adjacent sub-pixel regions.d3

›4.↳ 2The display device of claim 2, wherein the first optical resonance distance is adjusted to generate an optical resonance for red light emitted from th…d3+6

›5.↳ 4The display device of claim 4,nwherein the first organic light emitting layer comprises a blue-light emitting film, andwherein the second organic ligh…d4+2

›8.↳ 4The display device of claim 4,nwherein the first organic light emitting layer comprises a green-light emitting film and a red-light emitting film, or …d4+2

›11.independentA light emitting structure having a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region, comprising:nan optical distance c…+14

›12.↳ 11The light emitting structure of claim 11, wherein a first optical resonance distance in the first sub-pixel region, a second optical resonance distanc…d2+12

›13.↳ 12The light emitting structure of claim 12,nwherein the optical distance controlling insulation layer is at only the first sub-pixel region and the seco…d3

›14.↳ 12The light emitting structure of claim 12, wherein the optical distance controlling insulation layer is under the first hole injection layer.d3+1

›15.↳ 12The light emitting structure of claim 12, wherein the optical distance controlling insulation layer has different thicknesses in adjacent sub-pixel re…d3

›16.↳ 12The light emitting structure of claim 12, wherein the optical distance controlling insulation layer comprises a material that is the same as that of t…d3

›17.↳ 12The light emitting structure of claim 12, wherein the first optical resonance distance is adjusted to generate an optical resonance for red light emit…d3+6

›18.↳ 17The light emitting structure of claim 17,nwherein the first organic light emitting layer comprises a blue-light emitting film, andwherein the second o…d4+2

›21.↳ 17The light emitting structure of claim 17,nwherein the first organic light emitting layer comprises a green-light emitting film and a red-light emittin…d4+2

›24.↳ 11The light emitting structure of claim 11, wherein the blocking member comprises an electron blocking layer or an exciton quenching layer.d2

Classifications

4 codes

IPC · International Patent Classification

Section H — Electricity

H01L51/52
H01L27/32
H01L51/50
H05B33/10

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Thomas L Dickey

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Type	Document	Date
related publication	US 20130001612 A1	3 Jan 2013

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