IP Library Granted Patent US 12690375
Granted Patent B2
US 12690375 · App. 18/328,880 · Granted Jul 21, 2026

Display device and method for manufacturing the same

Inventors: Kyunghee Lee (Yongin-si, KR); Daewon Kim (Yongin-si, KR); Jongho Son (Yongin-si, KR); Hyebeom Shin (Yongin-si, KR); Jinhyeong Lee (Yongin-si, KR); Sun-Young Chang (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K59/8791H10K59/1201H10K59/873
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Quick Facts
Patent No.
US 12690375
App. No.
18/328,880
Granted
Jul 21, 2026
Kind
B2
Abstract

A display device includes a base substrate, a light emitting element disposed on the base substrate, an inorganic layer disposed on the light emitting element and including a metal and a metal oxide layer, an encapsulation layer disposed on the inorganic layer, an organic layer disposed on the encapsulation layer and including a quarter-wave plate, and an anti-reflection layer disposed on the organic layer.

Claims (16)

1 . A display device comprising:

a base substrate;

a light emitting element disposed on the base substrate;

an inorganic layer disposed on the light emitting element and comprising a metal and a metal oxide layer;

an encapsulation layer disposed on the inorganic layer;

an organic layer disposed on the encapsulation layer and comprising a quarter-wave plate; and

an anti-reflection layer disposed on the organic layer.

2 . The display device of claim 1 , wherein the organic layer comprises a material having negative dispersion.

3 . The display device of claim 2 , wherein the material having negative dispersion comprises a reactive mesogen liquid crystal.

4 . The display device of claim 1 , wherein the metal comprises at least one selected from a group including ytterbium (Yb), bismuth (Bi), tin (Sn), zinc (Zn) and indium (In).

5 . The display device of claim 1 , wherein the metal oxide layer comprises at least one selected from a group including molybdenum dioxide (MoO 2 ), molybdenum trioxide (MoO 3 ), tungsten trioxide (WO 3 ), indium tin oxide (ITO) and zinc oxide (ZnO).

6 . The display device of claim 1 , wherein the anti-reflection layer comprises a reactive mesogen liquid crystal and a dichroic dye.

7 . The display device of claim 6 , wherein the reactive mesogen liquid crystal has a nematic phase.

8 . The display device of claim 6 , wherein the reactive mesogen liquid crystal has a smectic A phase.

9 . The display device of claim 6 , wherein the dichroic dye comprises an azo group.

10 . The display device of claim 9 , wherein a mass ratio of a mass of the dichroic dye to a total mass of the reactive mesogen liquid crystal is about 10% or less.