Top emission type organic light emitting diode display device
AssigneeLG Display Co., Ltd.
InventorsSookang Kim, Soyoung Jo, Wonhoe Koo, Jihyang Jang, Hyunsoo Lim, Mingeun Choi
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Abstract
The present disclosure includes a top emission type organic light emitting diode display device. The top emission type organic light emitting diode display device of the disclosed present disclosure includes an overcoating layer disposed on a substrate and including a plurality of convex portions or a plurality of concave portions in which a full width at half maximum is greater than a radius, a first electrode disposed on the overcoating layer, an organic light emitting layer disposed on the first electrode, and a second electrode disposed on the organic light emitting layer.
Claims18
A top emission type organic light emitting diode display device, comprising:
- an overcoating layer disposed over a substrate and having at least one of a plurality of convex portions and a plurality of concave portions in which a full width at half maximum is greater than a radius;
- a first electrode disposed over the overcoating layer;
- an organic light emitting layer disposed on the first electrode;
- and
- a second electrode disposed on the organic light emitting layer,
- wherein at least one of the plurality of convex portions has a shape with a slope increased from a bottom portion and decreased after a maximum slope and has first to third areas which are trisected from a bottom to a top, and the maximum slope of the at least one of the plurality of convex portions is positioned at the third area, and
- wherein the organic light emitting layer has a first thickness corresponding to the top of the at least one of the plurality of convex portions and a second thickness corresponding to a lateral side of the third area, and the first thickness is greater than the second thickness.
An organic light emitting diode display device, comprising:
- an overcoating layer having at least one of a plurality of convex portions and a plurality of concave portions, each having a full width at half maximum greater than a radius;
- a reflection plate on the overcoating layer and substantially matching a contour of an upper surface of the overcoating layer;
- a first electrode disposed on the reflection plate and substantially matching a contour of an upper surface of the reflection plate;
- and
- an organic light emitting layer disposed on the first electrode and substantially matching a contour of an upper surface of the first electrode,
- wherein at least one of the plurality of convex portions has a shape with a slope increased from a bottom portion and decreased after a maximum slope and has first to third areas which are trisected from a bottom to a top, and the maximum slope of the at least one of the plurality of convex portions is positioned at the third area, and
- wherein the organic light emitting layer has a first thickness corresponding to the top of the at least one of the plurality of convex portions and a second thickness corresponding to a lateral side of the third area, and the first thickness is greater than the second thickness.
Dependencies are inferred from the claim text.