IP Library Granted Patent US 12690330
Granted Patent B2
US 12690330 · App. 17/863,655 · Granted Jul 21, 2026

Display device

Inventors: Nakcho Choi (Yongin-si, KR); Dae-Gi Kweon (Hwaseong-si, KR); Jihee Kim (Suwon-si, KR); Donghyun Son (Seoul, KR); Yun-Kyeong In (Hwaseong-si, KR); Jungmin Choi (Hwaseong-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/122
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Quick Facts
Patent No.
US 12690330
App. No.
17/863,655
Granted
Jul 21, 2026
Kind
B2
Abstract

A display device is disclosed that includes a substrate, a conductive layer, and a pixel defining layer. The substrate includes a first display area including pixels, a second display area including the pixels, and a transmissive area formed between the pixels of the second display area. The conductive layer is disposed in the second display area outside of the transmissive area. The pixel defining layer overlaps the conductive layer and is disposed such that an end of the pixel defining layer adjacent to the transmissive area is substantially aligned with an end of the conductive layer adjacent to the transmissive area.

Claims (33)

1 . A display device comprising:

a substrate that includes a first display area including pixels, a second display area including the pixels, and a transmissive area formed between the pixels of the second display area;

a driving element disposed on the first display area and the second display area of the substrate

a conductive layer disposed in the second display area outside of the transmissive area, a boundary between the transmissive area and the second display area being determined by the conductive layer, wherein the conductive layer overlaps the driving element and is disposed between the substrate and the driving element to prevent deterioration of the driving element; and

a pixel defining layer overlapping the conductive layer and disposed such that an end of the pixel defining layer adjacent to the transmissive area is substantially aligned with an end of the conductive layer adjacent to the transmissive area,

wherein the end of the pixel defining layer protrudes into the transmissive area relative to a line extending at a right angle from the substrate aligned with the end of the conductive layer.

2 . The display device of claim 1 , wherein the pixel defining layer includes a black organic pigment.

3 . The display device of claim 1 , wherein a length of a portion from which the end of the pixel defining layer protrudes is no more than about 2 micrometers.

4 . The display device of claim 1 , further comprising:

a cathode electrode disposed on the pixel defining layer to overlap the second display area and not to overlap the transmissive area.

5 . The display device of claim 1 , further comprising:

a plurality of inorganic insulating layers disposed on the conductive layer to overlap the second display area and not to overlap the transmissive area.

6 . The display device of claim 1 , further comprising:

a plurality of inorganic insulating layers disposed on the conductive layer to overlap the second display area and extending so that an end thereof overlaps a portion of the transmissive area.

7 . The display device of claim 1 , further comprising:

a first inorganic insulating layer disposed on the conductive layer to overlap the second display area and extending so that an end of the first inorganic insulating layer overlaps a portion of the transmissive area; and

a second inorganic insulating layer disposed on the first inorganic insulating layer to overlap the second display area and not overlapping the transmissive area.

8 . The display device of claim 1 , further comprising:

a light emitting element disposed on the driving element and electrically connected to the driving element.

9 . The display device of claim 2 , wherein the black organic pigment includes a lactam pigment.

10 . The display device of claim 5 , further comprising:

a first organic insulating layer disposed on the plurality of inorganic insulating layers to overlap the second display area and extended to overlap the transmissive area as well; and

a second organic insulating layer disposed on the first organic insulating layer to overlap the second display area and the transmissive area.

11 . The display device of claim 6 , further comprising:

a first organic insulating layer disposed on the plurality of inorganic insulating layers to overlap the second display area and extended to overlap the transmissive area as well; and

a second organic insulating layer disposed on the first organic insulating layer to overlap the second display area and the transmissive area.

12 . The display device of claim 7 , further comprising:

a first organic insulating layer disposed on the second inorganic insulating layers to overlap the second display area and extended to overlap the transmissive area; and

a second organic insulating layer disposed on the first organic insulating layer to overlap the second display area and the transmissive area.

13 . The display device of claim 8 , wherein the light emitting element includes:

an anode electrode electrically connected to the driving element;

a light emitting layer disposed on the anode electrode; and

a cathode electrode disposed on the light emitting layer and the pixel defining layer, overlapping the pixel defining layer in the first display area and the second display area, and not overlapping the transmissive area.