IP Library Granted Patent US 11,690,246
Granted Patent B2
US 11,690,246 · App. 17/246,396 · Granted Jun 27, 2023

Display panel and display apparatus including component and transmission areas

Inventors: Jihwang Lee (Yongin-si, KR); Jaehyun Kim (Yongin-si, KR); Youngseo Choi (Yongin-si, KR); Seungwoo Seo (Yongin-si, KR); Soyeon Jeong (Yongin-si, KR); Sungchul Kim (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K50/844H10K59/122H10K59/40H10K59/65G09G2300/0408G09G2300/0804H01L27/14678H10K50/818H10K50/856H10K59/1216H10K59/35H10K2102/00
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,690,246
App. No.
17/246,396
Granted
Jun 27, 2023
Kind
B2
Abstract

In a display panel including a main display area, a component area including a transmission area, and a peripheral area outside the main display area, the display panel includes: a substrate; an inorganic insulating layer over the substrate and including a first hole corresponding to the transmission area; a planarization layer over the inorganic insulating layer; a pixel definition layer over the planarization layer and having a thickness of 1.3 μm to 2 μm; and a thin film encapsulation layer over the pixel definition layer, wherein an angle between a side surface of the pixel definition layer and an upper surface of the planarization layer is 30 degrees to 40 degrees.

Claims (51)

1. A display panel including a main display area, a component area including a transmission area, and a peripheral area outside the main display area, the display panel comprising:

a substrate;

an inorganic insulating layer over the substrate and including a first hole corresponding to the transmission area;

a planarization layer over the inorganic insulating layer;

a pixel definition layer over the planarization layer and having a thickness of 1.3 μm to 2 μm; and

a thin film encapsulation layer over the pixel definition layer,

wherein an angle between a side surface of the pixel definition layer and an upper surface of the planarization layer is 30 degrees to 40 degrees.

2. The display panel of claim 1 , wherein the pixel definition layer has a thickness of 1.3 μm to 2 μm from the upper surface of the planarization layer.

3. The display panel of claim 1 , wherein a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer are sequentially stacked in the thin film encapsulation layer, and the organic encapsulation layer is in the first hole.

4. The display panel of claim 3 , wherein the planarization layer includes a second hole corresponding to the transmission area, the pixel definition layer includes a third hole corresponding to the transmission area, and the organic encapsulation layer is in the second hole and the third hole.

5. The display panel of claim 4 , wherein the organic encapsulation layer over the transmission area has a flat upper surface.

6. The display panel of claim 4 , wherein the organic encapsulation layer over the transmission area includes a concave portion.

7. The display panel of claim 6 , wherein a distance from a bottom surface of an upper surface of the organic encapsulation layer to a top surface of the upper surface of the organic encapsulation layer is more than 0 μm and less than or equal to 2 μm.

8. The display panel of claim 4 , wherein the organic encapsulation layer over the transmission area includes a convex portion.

9. The display panel of claim 8 , wherein a distance from a bottom surface of an upper surface of the organic encapsulation layer to a top surface of the upper surface of the organic encapsulation layer is more than 0 μm and less than or equal to 2 μm.

10. The display panel of claim 1 , further comprising:

a main display element over the planarization layer corresponding to the main display area; and

an auxiliary display element over the planarization layer corresponding to the component area.

11. The display panel of claim 10 , wherein the main display element includes a first pixel electrode, the auxiliary display element includes a second pixel electrode, and the pixel definition layer exposes at least a portion of the first pixel electrode and the second pixel electrode.

12. The display panel of claim 1 , further comprising a touch screen layer over the thin film encapsulation layer,

wherein a first touch insulating layer, a second touch insulating layer, and a third touch insulating layer are sequentially stacked in the touch screen layer, and

the touch screen layer includes a first touch electrode between the first touch insulating layer and the second touch insulating layer and a second touch electrode between the second touch insulating layer and the third touch insulating layer.

13. The display panel of claim 12 , wherein the first touch electrode and the second touch electrode at least partially overlap the pixel definition layer.

14. The display panel of claim 1 , further comprising a bottom metal layer arranged between the substrate and the inorganic insulating layer in the component area and including a bottom hole corresponding to the transmission area.

15. A display panel including a main display area, a component area including a transmission area, and a peripheral area outside the main display area, the display panel comprising:

a substrate;

an inorganic insulating layer over the substrate and including a first hole corresponding to the transmission area;

a pixel definition layer arranged over the inorganic insulating layer and having a thickness of 1.3 μm to 2 μm; and

a thin film encapsulation layer over the pixel definition layer and including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer,

wherein the organic encapsulation layer includes a concave portion or a convex portion.

16. The display panel of claim 15 , wherein a distance from a bottom surface of an upper surface of the organic encapsulation layer to a top surface of the upper surface of the organic encapsulation layer is more than 0 μm and less than or equal to 2 μm.

17. The display panel of claim 15 , further comprising a planarization layer between the inorganic insulating layer and the pixel definition layer,

wherein the pixel definition layer has a thickness of 1.3 μm to 2 μm from an upper surface of the planarization layer.

18. The display panel of claim 17 , wherein an angle between a side surface of the pixel definition layer and the upper surface of the planarization layer is 30 degrees to 40 degrees.

19. The display panel of claim 15 , wherein the organic encapsulation layer is in the first hole.

20. A display apparatus comprising:

a display panel including a main display area, a component area including a transmission area, and a peripheral area outside the main display area; and

a component under the display panel to correspond to the component area,

the display panel comprising:

a substrate;

an inorganic insulating layer over the substrate and including a first hole corresponding to the transmission area;

a planarization layer over the inorganic insulating layer;

a pixel definition layer over the planarization layer and having a thickness of 1.3 μm to 2 μm; and

a thin film encapsulation layer over the pixel definition layer,

wherein an angle between a side surface of the pixel definition layer and an upper surface of the planarization layer is 30 degrees to 40 degrees.

21. The display apparatus of claim 20 , wherein the component includes an imaging device or a sensor.

22. The display apparatus of claim 20 , wherein the pixel definition layer has a thickness of 1.3 μm to 2 μm from the upper surface of the planarization layer.

23. The display apparatus of claim 20 , wherein a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer are sequentially stacked in the thin film encapsulation layer, and the organic encapsulation layer is in the first hole.

24. The display apparatus of claim 23 , wherein the organic encapsulation layer over the transmission area has a flat upper surface.

25. The display apparatus of claim 23 , wherein the organic encapsulation layer over the transmission area includes a concave portion or a convex portion.

26. The display apparatus of claim 25 , wherein a distance from a bottom surface of an upper surface of the organic encapsulation layer to a top surface of the upper surface of the organic encapsulation layer is more than 0 μm and less than or equal to 2 μm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2021
From: LEE, JIHWANG; KIM, JAEHYUN; CHOI, YOUNGSEO; SEO, SEUNGWOO; JEONG, SOYEON; KIM, SUNGCHUL
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056104/0065 →
Priority Claims (1)
KR 10-2020-0101408 · Aug 12, 2020 · national
Continuity (1)
Related Publication 20220052291A1 · Feb 17, 2022