Organic light emitting display apparatus
AssigneeLG Display Co., Ltd.
InventorJiYoung Ahn
Life of this patent
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Abstract
An organic light emitting display apparatus includes a plurality of pixels on a substrate, each including a plurality of subpixels each including an emission area, a planarization layer including a light extraction pattern which is at the emission area of each of the plurality of subpixels and includes a plurality of concave portions and a convex portion surrounding each of the plurality of concave portions, a light emitting device layer on the light extraction pattern, and a phase grating portion between the substrate and the light extraction pattern to overlap the emission area of each of the plurality of subpixels.
Claims25
An organic light emitting display apparatus, comprising:
- a plurality of pixels on a substrate, each including a plurality of subpixels each having an emission area;
- a planarization layer including a light extraction pattern which is at the emission area of each of the plurality of subpixels and includes a plurality of concave portions and a convex portion surrounding each of the plurality of concave portions;
- a light emitting device layer on the light extraction pattern;
- and
- a phase grating portion between the substrate and the light extraction pattern to overlap the emission area of each of the plurality of subpixels.
Dependencies are inferred from the claim text.