Display device and electronic device including the same

Patent metadata

Field	Value
Publication number	US-2025194373-A1
Application number	US-202418972527-A
Country	US
Kind code	A1
Filing date	Dec 6, 2024
Priority date	Dec 8, 2023
Publication date	Jun 12, 2025
Grant date	—

Abstract

A display device includes a base substrate including a display area, a first area adjacent to the display area, a sealing area adjacent to the first area, and a second area adjacent to the sealing area, a second base substrate facing the first base substrate, a first light emitting element disposed on the first base substrate and partially overlapping the display area, a second light emitting element disposed on the first base substrate, partially overlapping the display area, and spaced apart from the first light emitting element, a sealing member disposed between the first base substrate and the second base substrate and overlapping the sealing area, a color filter layer disposed between the second base substrate and the sealing member and defining a first cutout portion partially overlapping the second area and a low refractive index layer disposed under the color filter layer and filling the first cutout portion.

First claim

What is claimed is:

1 . A display device comprising:
a base substrate including a display area, a first area disposed adjacent to the display area, a sealing area disposed adjacent to the first area, and a second area disposed adjacent to the sealing area; a second base substrate facing the first base substrate; a first light emitting element disposed on the first base substrate and partially overlapping the display area; a second light emitting element disposed on the first base substrate, partially overlapping the display area, and spaced apart from the first light emitting element; a sealing member disposed between the first base substrate and the second base substrate and overlapping the sealing area; a color filter layer disposed between the second base substrate and the sealing member, wherein the color filter layer includes a first color filter, a second color filter, and a third color filter, and defines a first cutout portion partially overlapping the second area; and a low refractive index layer disposed under the color filter layer and filling the first cutout portion.

2 . The display device of claim 1 , wherein the second color filter is disposed on the first color filter, the third color filter is disposed on the second color filter, and the first cutout portion is a portion from which the first color filter is removed.

3 . The display device of claim 2 , wherein the first cutout portion is a portion from which both the first color filter and the second color filter are removed.

4 . The display device of claim 3 , wherein the color filter layer further defines a second cutout portion spaced apart from the first cutout portion and partially overlapping the second area.

5 . The display device of claim 4 , wherein the second cutout portion is a portion from which the first color filter is removed.

6 . The display device of claim 5 , wherein the second cutout portion is a portion from which both the first color filter and the second color filter are removed.

7 . The display device of claim 4 , wherein the low refractive index layer fills the second cutout portion.

8 . The display device of claim 4 , wherein the second area includes:
a first cutout area overlapping the first cutout portion; a second cutout area overlapping the second cutout portion; a first intermediate area disposed between the first cutout area and the second cutout area; and a second intermediate area disposed adjacent to the second cutout area and spaced apart from the first intermediate area.

9 . The display device of claim 8 , wherein a thickness of the low refractive index layer overlapping the sealing area is greater than a thickness of the low refractive index layer overlapping the first intermediate area.

10 . The display device of claim 9 , wherein the thickness of the low refractive index layer overlapping the sealing area is smaller than a thickness of the low refractive index layer overlapping the first cutout area.

11 . The display device of claim 8 , wherein a thickness of the low refractive index layer overlapping the sealing area is greater than a thickness of the low refractive index layer overlapping the second intermediate area.

12 . The display device of claim 1 , further comprising:
a bank layer disposed between the color filter layer and the first base substrate, and defining a first opening overlapping the first light emitting element and a second opening overlapping the second light emitting element.

13 . The display device of claim 12 , further comprising:
a color converting layer filling the first opening and including a first scattering body and a first wavelength converting particle.

14 . The display device of claim 13 , further comprising:
the transmitting layer filling the second opening and including the second scattering body.

15 . The display device of claim 12 , wherein the bank layer overlaps the first area and the sealing area, and partially overlaps the second area.

16 . A display device comprising:
a base substrate including a display area, a first area disposed adjacent to the display area, a sealing area disposed adjacent to the first area, and a second area disposed adjacent to the sealing area; a second base substrate facing the first base substrate; a first light emitting element disposed on the first base substrate and partially overlapping the display area; a second light emitting element disposed on the first base substrate, partially overlapping the display area, and spaced apart from the first light emitting element; a sealing member disposed between the first base substrate and the second base substrate and overlapping the sealing area; a color filter layer disposed between the second base substrate and the sealing member, partially overlapping the second area, overlapping the sealing area and the first area, and including a first color filter, a second color filter disposed on the first filter, and a third color filter disposed on the second color filter; and a low refractive index layer disposed under the color filter layer, wherein a distance between an end of the second color filter and the sealing area is greater than a distance between an end of the first color filter and the sealing area.

17 . The display device of claim 16 , wherein a distance between an end of the third color filter and the sealing area is greater than the distance between the end of the second color filter and the sealing area.

18 . The display device of claim 17 , wherein the third color filter completely overlaps the second area.

19 . The display device of claim 17 , wherein a thickness of the low refractive index layer overlapping the sealing area is greater than a thickness of each of the low refractive index layer overlapping the end of the first color filter, the low refractive index layer overlapping the end of the second color filter, and the low refractive index layer overlapping the end of the third color filter.

20 . The display device of claim 17 , further comprising:
a bank layer disposed between the color filter layer and the sealing member and overlapping the first area, the second area, and the sealing area.

21 . An electronic device comprising:
a base substrate including a display area, a first area disposed adjacent to the display area, a sealing area disposed adjacent to the first area, and a second area disposed adjacent to the sealing area; a second base substrate facing the first base substrate; a first light emitting element disposed on the first base substrate and partially overlapping the display area; a second light emitting element disposed on the first base substrate, partially overlapping the display area, and spaced apart from the first light emitting element; a sealing member disposed between the first base substrate and the second base substrate and overlapping the sealing area; a color filter layer disposed between the second base substrate and the sealing member, wherein the color filter layer includes a first color filter, a second color filter, and a third color filter, and defines a first cutout portion partially overlapping the second area; a low refractive index layer disposed under the color filter layer and filling the first cutout portion; and a memory device configured to store data.

Assignees

• Samsung Display Co Ltd

Inventors

• Yoon Youngsang
• Park Je Hyeong
• Park Hyun-Chul
• Ahn Kiwan
• Han Beomhee

Classifications

• H10K59/121

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K59/95

  wherein all light-emitting elements are organic, e.g. assembled OLED displays · CPC title

• H10K59/38 Primary

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K59/879 Primary

  comprising refractive means, e.g. lenses · CPC title

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title