IP Library › Granted Patent US 11,625,068
Granted Patent B2
US 11,625,068 · App. 17/227,902 · Granted Apr 11, 2023

Display device

Inventors: Hyun-Been Hwang (Suwon-si, KR); Hirotsugu Kishimoto (Hwaseong-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F1/1643G06F1/1616G06F3/041G06F3/0416
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 11,625,068
App. No.
17/227,902
Granted
Apr 11, 2023
Kind
B2
Abstract

A display device includes a window containing a glass substrate, a display panel disposed under the window, and a digitizer disposed under the display panel, wherein the digitizer includes a base film disposed under the display panel, a first conductive layer disposed under the base film, a first insulating layer disposed under the first conductive layer, a second conductive layer disposed under the first insulating layer, a second conductive layer disposed under the second conductive layer, and the second insulating layer disposed under the second conductive layer, and the window, the display panel, and the digitizer may be capable of being folded and unfolded.

Claims (66)

1. A display device comprising:

a window including a glass substrate;

a display panel disposed under the window;

a digitizer disposed under the display panel; and

an adhesive layer disposed between the display panel and the digitize, wherein

the digitizer comprises:

a base film disposed under the display panel;

a first conductive layer disposed under the base film;

a first insulating layer disposed under the first conductive layer;

a second conductive layer disposed under the first insulating layer; and

a second insulating layer disposed under the second conductive layer,

the window, the display panel, and the digitizer are capable of being folded and unfolded, and

the base film of the digitizer directly contacts the adhesive layer.

2. The display device of claim 1 , wherein a thickness of the first conductive layer is greater than a thickness of the second conductive layer.

3. The display device of claim 1 , wherein the second conductive layer comprises:

a first sub-conductive layer disposed under the first insulating layer, and

a second sub-conductive layer disposed under the first sub-conductive layer.

4. The display device of claim 3 , wherein

each of the first sub-conductive layer and the first insulating layer comprises an opening, and

the second sub-conductive layer electrically contacts the first conductive layer through the opening of each of the first sub-conductive layer and the first insulating layer.

5. The display device of claim 3 , wherein the first sub-conductive layer directly contacts the first insulating layer.

6. The display device of claim 1 , wherein the digitizer further comprises an intermediate base film disposed between the second conductive layer and the first insulating layer.

7. The display device of claim 6 , wherein each of the base film and the intermediate base film comprises a polyimide.

8. The display device of claim 1 , wherein each of the first insulating layer and the second insulating layer comprises a pressure sensitive adhesive film.

9. The display device of claim 1 , wherein

one of the first insulating layer or the second insulating layer comprises a photosensitive polyimide, and

the other of the first insulating layer or the second insulating layer is a pressure sensitive adhesive film.

10. The display device of claim 1 , wherein the digitizer further comprises a cover layer disposed under the second insulating layer.

11. The display device of claim 1 , wherein a number of layers of the second conductive layer is greater than a number of layers of the first conductive layer.

12. The display device of claim 1 , wherein the display panel and the digitizer are in-folded such that a first portion of the display panel and a second portion of the display panel face each other.

13. The display device of claim 1 , wherein

the display panel comprises:

a sensor layer sensing an external input from an outside of the display device; and

a display layer disposed under the sensor layer and displaying an image, and

the display layer is disposed between the sensor layer and the digitizer.

14. The display device of claim 1 , further comprising a protective film disposed between the display panel and the digitizer, wherein

the display panel is attached to the protective film, and

the base film of the digitizer is attached to the protective film.

15. The display device of claim 1 , wherein:

the digitizer comprises an upper surface and a lower surface,

the upper surface of the digitizer faces the display panel,

the lower surface of the digitizer is spaced apart from the display panel,

the upper surface of the digitizer is disposed between the display panel and the lower surface of the digitizer, and

in an unfolded state, the upper surface of the digitizer is flat, and the lower surface of the digitizer is uneven.

16. A display device comprising:

a sensor layer sensing an input from an outside of the display device;

a display layer disposed under the sensor layer and displaying an image towards the sensor layer; and

a digitizer disposed under the display layer and including an upper surface facing the display layer and a lower surface spaced apart from the display layer, wherein

the upper surface of the digitizer is disposed between the display layer and the lower surface of the digitizer,

the upper surface of the digitizer is flat, and

the lower surface of the digitizer is uneven.

17. The display device of claim 16 , wherein the digitizer comprises:

a base film disposed under the display layer and adjacent to the upper surface of the digitizer;

a first conductive layer disposed under the base film;

a first insulating layer disposed under the first conductive layer;

a second conductive layer disposed under the first insulating layer; and

a second insulating layer disposed under the second conductive layer,

wherein the sensor layer, the display layer, and the digitizer are capable of being folded and unfolded.

18. The display device of claim 17 , wherein the digitizer further comprises an intermediate base film disposed between the second conductive layer and the first insulating layer.

19. The display device of claim 18 , wherein

the second conductive layer comprises:

a first sub-conductive layer contacting the intermediate base film; and

a second sub-conductive layer disposed under the first sub-conductive layer,

each of the first sub-conductive layer, the intermediate base film, and the first insulating layer comprises an opening, and

the second sub-conductive layer electrically contacts the first conductive layer through the opening of each of the first sub-conductive layer, the intermediate base film, and the first insulating layer.

20. The display device of claim 18 , wherein each of the first insulating layer and the second insulating layer comprises a pressure sensitive adhesive film or a photosensitive polyimide.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2021
From: HWANG, HYUN-BEEN; KISHIMOTO, HIROTSUGU
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 055894/0751 →
Priority Claims (1)
KR 10-2020-0075894 · Jun 22, 2020 · national
Continuity (1)
Related Publication 20210397221A1 · Dec 23, 2021
Cited By (1)
US 12,443,240