Patent ID: 11871597
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 19:
20. A light emitting display device comprising:
a substrate including a first light emitting region, a second light emitting region, a third light emitting region, and a non-light emitting region;
a first electrode comprising a first sub-electrode on the first light emitting region, a second sub-electrode on the second light emitting region, and a third sub-electrode on the third light emitting region;
a first light emitting unit on the first electrode;
a charge generation unit comprising an n-type charge generation layer on the first light emitting unit, and a p-type charge generation layer on the n-type charge generation layer;
a second light emitting unit on the charge generation unit; and
a second electrode on the second light emitting unit,
wherein the first light emitting unit comprises a first red light emitting layer on the first sub-electrode, a first green light emitting layer on the second sub-electrode, and a first blue light emitting layer on the third sub-electrode,
wherein the second light emitting unit comprises a second red light emitting layer on the first red light emitting layer, a second green light emitting layer on the first green light emitting layer, and a second blue light emitting layer on the first blue light emitting layer,
wherein the n-type charge generation layer is arranged on the first light emitting region, the second light emitting region, the third light emitting region, and the non-light emitting region,
wherein the p-type charge generation layer comprises a first p-type charge generation layer corresponding to the first light emitting region, a second p-type charge generation layer corresponding to the second light emitting region, and a third p-type charge generation layer corresponding to the third light emitting region, and the p-type charge generation layer is on the n-type charge generation layer, and
wherein a conductivity of the p-type charge generation layer is equal to or less than about 1.5×10−6 s/m.