IP Library › Granted Patent US 11,943,968
Granted Patent B2
US 11,943,968 · App. 17/967,363 · Granted Mar 26, 2024

Display device and method of manufacturing the same

Inventors: Minsoo Kang (Yongin-si, KR); Gwangjae Seo (Cheonan-si, KR); Myeongseok Jeong (Cheonan-si, KR); Yongsik Heo (Asan-si, KR); Kyoungil Min (Hwaseong-si, KR); Junshik Park (Incheon, KR); Taehyun Sung (Seoul, KR); Hyungu Lee (Asan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K50/868G02F1/133351G02F1/133528H01L21/84H01L27/1248H10K50/844H10K71/00
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 11,943,968
App. No.
17/967,363
Granted
Mar 26, 2024
Kind
B2
Abstract

A display device includes a display panel, a first film, and a polarizing film. The display panel includes a first surface, a second surface opposite to the first surface, and a side surface. The first film is beneath the first surface of the display panel. The polarizing film is on the second surface of the display panel. The polarizing film has a haze area including a yellow area extending along an edge of the polarizing film in a plan view.

Claims (40)

1. A display device, comprising:

a display panel including a first surface, a second surface opposite to the first surface, and an outermost side surface;

a first film under the first surface of the display panel; and

a polarizing film on the second surface of the display panel, wherein

the polarizing film has a haze area including a yellow area extending along an edge of the polarizing film on a plane and spaced apart from the edge of the polarizing film at a predetermined space, and

the polarizing film includes a burr disposed in the predetermined space and surrounding the yellow region.

2. The display device as claimed in claim 1 , wherein a width of the haze area is 1 μm or more and 100 μm or less.

3. The display device as claimed in claim 1 , wherein

the polarizing film includes a lower surface and an upper surface further from the display panel than the lower surface of the polarizing film, and an outermost side surface,

the polarizing film has a display area adjacent the haze area, and

the haze area is more adjacent to the outermost side surface of the polarizing film than the display area.

4. The display device as claimed in claim 1 , wherein the first film includes a first burr disposed along an edge of the first film adjacent to an outermost side surface of the first film.

5. The display device as claimed in claim 4 , wherein the burr is disposed relatively outside of the first burr.

6. The display device as claimed in claim 4 , wherein a width of the first burr is greater than a width of the burr.

7. The display device as claimed in claim 4 , wherein the first burr is overlapping the yellow area on a plane.

8. The display device as claimed in claim 2 , wherein the outermost side surface of the first film, the outermost side surface of the display panel, and the outermost side surface of the polarizing film are inclined with respect to the first surface of the display panel.

9. The display device as claimed in claim 8 , wherein the outermost side surface of the display panel, the outermost side surface of the first film, and the outermost side surface of the polarizing film are connected to each other.

10. The display device as claimed in claim 8 , wherein

one of the outermost side surface of the display panel, the outermost side surface of the first film, and the outermost side surface of the polarizing film has a first angle with respect to the first surface of the display panel, and

another one of the outermost side surface of the display panel, the outermost side surface of the first film, and the outermost side surface of the polarizing film has a second angle different from the first angle with respect to the first surface of the display panel.

11. The display device as claimed in claim 8 , wherein one of the outermost side surface of the display panel, the outermost side surface of the first film, and the outermost side surface of the polarizing film has a curvature.

12. The display device as claimed in claim 1 , wherein the first film includes polyethylene terephthalate (PET).

13. The display device as claimed in claim 1 , wherein the yellow area has a yellow color.

14. A method for manufacturing a display device, comprising:

forming a mother substrate including a plurality of display units, each of the display units including a plurality of light emitters;

attaching a mother polarizing film to a first surface of the mother substrate; and

irradiating a laser beam on the mother substrate and the mother polarizing film to laser cut the mother substrate and the mother polarizing film into individual display units, wherein the each of the display units includes a display panel separated from the mother substrate and a polarizing film separated from the mother polarizing film, and

irradiating the laser beam on the mother polarizing film causes a burr to be formed adjacent to a side surface of the polarizing film, and

the polarizing film has a haze area including a yellow area extending along an edge of the polarizing film on a plane and spaced apart from the edge of the polarizing film at a predetermined space, and the burr disposed in the predetermined space and surrounding the yellow region.

15. The method as claimed in claim 14 , wherein the yellow area has a yellow color.

16. The method as claimed in claim 15 , wherein the first film includes a first burr disposed along an edge of the first film adjacent to an outermost side surface of the first film.

17. The method as claimed in claim 14 , wherein irradiating the laser beam includes:

irradiating the laser beam with a first intensity to perform a first laser cut; and

irradiating the laser beam with a second intensity to perform a second laser cut, the second intensity being less than the first intensity.

18. The method as claimed in claim 14 , wherein the laser beam is irradiated in a multi-pass process.

19. The method as claimed in claim 18 , wherein:

irradiating the laser beam with the first intensity is performed in a first multi-pass process, and

irradiating the laser beam with the second intensity is performed in a second multi-pass process, the second multi-pass process being greater than the first multi-pass process.

20. The method as claimed in claim 19 , wherein:

the mother polarizing film and the mother substrate are cut by irradiating the laser beam with the first intensity.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2022
From: KANG, MINSOO; SEO, GWANGJAE; JEONG, MYEONGSEOK; HEO, YONGSIK; MIN, KYOUNGIL; PARK, JUNSHIK; SUNG, TAEHYUN; LEE, HYUNGU
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 061444/0172 →
Priority Claims (1)
KR 10-2016-0072736 · Jun 10, 2016 · national
Continuity (3)
Continuation 16879988 · May 21, 2020
Continuation 15418848 · Jan 30, 2017
Related Publication 20230035717A1 · Feb 2, 2023
Cited By (1)
US 12,207,537