IP Library › Granted Patent US 12677565
Granted Patent B2
US 12677565 · App. 18/136,951 · Granted Jul 7, 2026

Display device and method for manufacturing the same

Inventors: Yang-Ho Jung (Yongin-si, KR); Woong Sik Kim (Yongin-si, KR); Kab Jong Seo (Yongin-si, KR); Jun Ho Sim (Yongin-si, KR); Pil Soon Hong (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/80517H10K59/1201H10K59/124H10K59/877
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Quick Facts
Patent No.
US 12677565
App. No.
18/136,951
Granted
Jul 7, 2026
Kind
B2
Abstract

A present disclosure relates to a display device and a manufacturing method, and the display device according to an embodiment includes: a substrate; a transistor positioned on the substrate; a first pixel electrode connected to the transistor; a scattering layer positioned on the first pixel electrode; a second pixel electrode positioned on the scattering layer and covering a side surface of the first pixel electrode; an emission layer positioned on the second pixel electrode; and a common electrode positioned on the emission layer.

Claims (19)

1 . A display device comprising:

a substrate;

a transistor positioned on the substrate;

a first pixel electrode connected to the transistor;

a scattering layer positioned on the first pixel electrode;

a second pixel electrode positioned on the scattering layer and covering an entire side surface of the first pixel electrode;

an emission layer positioned on the second pixel electrode; and

a common electrode positioned on the emission layer.

2 . The display device of claim 1 , wherein the second pixel electrode is in direct contact with the side surface of the first pixel electrode.

3 . The display device of claim 2 , wherein the second pixel electrode has a wider width than that of the first pixel electrode.

4 . The display device of claim 1 , wherein the scattering layer has the same planar shape as the first pixel electrode.

5 . The display device of claim 1 , further comprising a passivation layer positioned between the transistor and the first pixel electrode,

wherein an edge of the second pixel electrode is in direct contact with the passivation layer.

6 . The display device of claim 5 , wherein the second pixel electrode is in direct contact with an upper surface and side surfaces of the first pixel electrode not covered by the scattering layer.

7 . The display device of claim 6 , wherein the passivation layer includes a trench, a thickness of a part of the passivation layer where the trench is formed is thinner than a thickness of the rest of the passivation layer, the trench does not overlap the first pixel electrode, and the edge of the second pixel electrode covers a side wall and a bottom of the trench.

8 . The display device of claim 7 , wherein a width of the scattering layer is narrower than the width of the first pixel electrode.

9 . The display device of claim 1 , wherein the first pixel electrode includes a lower layer, a middle layer, and an upper layer, and

the middle layer of the first pixel electrode includes a metal material, and the lower layer and the upper layer of the first pixel electrode include a transparent conductive oxide.

10 . The display device of claim 1 , wherein the scattering layer includes a photosensitive resin and a plurality of scatterers positioned inside the photosensitive resin.