IP Library Granted Patent US 12,438,096
Granted Patent B2
US 12,438,096 · App. 18/087,174 · Granted Oct 7, 2025

Flexible film and display device including the same

Inventors: Soo Yeon Kim (Namyangju-si, KR); Tae Gon Im (Seongnam-si, KR); Ji Hyun Kim (Yongin-si, KR); Jong Jae Lee (Seoul, KR); Jun Pyo Lee (Asan-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L23/5386G09G3/3233H01L25/167G09G2300/0426G09G2300/0842H01L23/5387
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Quick Facts
Patent No.
US 12,438,096
App. No.
18/087,174
Granted
Oct 7, 2025
Kind
B2
Abstract

A flexible film includes first input pad parts and second input pad parts, first output pad parts corresponding to the first input pad parts and second output pad parts corresponding to the second input pad parts, a first voltage line supplying a first voltage received from the first input pad parts to the first output pad parts, and a second voltage line supplying a second voltage received from the second input pad parts and the second voltage being lower than the first voltage to the second output pad parts. The first voltage line includes first vertical voltage lines electrically connected between the first input pad parts and the first output pad parts, and first horizontal voltage lines electrically connecting adjacent first vertical voltage lines of the first vertical voltage lines to each other.

Claims (65)

1. A flexible film comprising:

first input pad parts and second input pad parts;

first output pad parts corresponding to the first input pad parts and second output pad parts corresponding to the second input pad parts;

a first voltage line supplying a first voltage received from the first input pad parts to the first output pad parts; and

a second voltage line supplying a second voltage received from the second input pad parts and the second voltage being lower than the first voltage to the second output pad parts,

wherein the first voltage line includes:

first vertical voltage lines electrically connected between the first input pad parts and the first output pad parts; and

first horizontal voltage lines electrically connecting adjacent first vertical voltage lines of the first vertical voltage lines to each other.

2. The flexible film of claim 1 , wherein a width of each of the first horizontal voltage lines is greater than or equal to a width of each of the first vertical voltage lines.

3. The flexible film of claim 1 , wherein a resistance of a first line resistor for a unit length of the first vertical voltage lines is greater than a resistance of a second line resistor for a unit length of the first horizontal voltage lines.

4. The flexible film of claim 1 , wherein the second voltage line includes:

second vertical voltage lines electrically connected between the second input pad parts and the second output pad parts; and

second horizontal voltage lines electrically connecting adjacent second vertical voltage lines of the second vertical voltage lines to each other.

5. The flexible film of claim 4 , wherein a width of each of the second horizontal voltage lines is greater than or equal to a width of each of the second vertical voltage lines.

6. The flexible film of claim 4 , wherein

the first voltage line is disposed at an edge of the flexible film and another edge of the flexible film opposite to the edge, and

the second voltage line is disposed further inside the flexible film than the first voltage line.

7. The flexible film of claim 4 , wherein

the first voltage line is disposed at an edge of the flexible film, and

the second voltage line is disposed at another edge of the flexible film opposite to the edge of the flexible film.

8. The flexible film of claim 1 , wherein

the second voltage line includes second voltage lines, and

the second voltage lines are electrically connected between the second input pad parts and the second output pad parts and extend side by side.

9. The flexible film of claim 8 , wherein

the first voltage line is disposed at an edge of the flexible film and another edge of the flexible film opposite to the edge, and

the second voltage line is disposed further inside the flexible film than the first voltage line.

10. The flexible film of claim 8 , wherein

the first voltage line is disposed at an edge of the flexible film, and

the second voltage line is disposed at another edge of the flexible film opposite to the edge of the flexible film.

11. A display device comprising:

a display panel; and

a flexible film connected to the display panel, wherein

the flexible film comprises:

first input pad parts and second input pad parts;

first output pad parts corresponding to the first input pad parts and second output pad parts corresponding to the second input pad parts;

a first voltage line supplying a first voltage received from the first input pad parts to the first output pad parts; and

a second voltage line supplying a second voltage received from the second input pad parts and the second voltage being lower than the first voltage to the second output pad parts, and

the first voltage line includes:

first vertical voltage lines electrically connected between the first input pad parts and the first output pad parts; and

first horizontal voltage lines electrically connecting adjacent first vertical voltage lines of the first vertical voltage lines to each other.

12. The display device of claim 11 , wherein a width of each of the first horizontal voltage lines is greater than or equal to a width of each of the first vertical voltage lines.

13. The display device of claim 11 , wherein a resistance of a first line resistor for a unit length of the first vertical voltage lines is greater than a resistance of a second line resistor for a unit length of the first horizontal voltage lines.

14. The display device of claim 11 , wherein the second voltage line includes:

second vertical voltage lines electrically connected between the second input pad parts and the second output pad parts; and

second horizontal voltage lines electrically connecting adjacent second vertical voltage lines of the second vertical voltage lines to each other.

15. The display device of claim 14 , wherein a width of each of the second horizontal voltage lines is greater than or equal to a width of each of the second vertical voltage lines.

16. The display device of claim 14 , further comprising:

a display driver mounted on a central portion of the flexible film, wherein

the first voltage line is disposed at an edge of the flexible film and another edge of the flexible film opposite to the edge, and

the second voltage line is disposed between the first voltage line and the display driver.

17. The display device of claim 14 , further comprising:

a display driver mounted on a central portion of the flexible film, wherein

the first voltage line is disposed on a side of the display driver, and

the second voltage line is disposed on another side of the display driver opposite to the side of the display driver.

18. The display device of claim 11 , wherein

the second voltage line includes second voltage lines, and

the second voltage lines are electrically connected between the second input pad parts and the second output pad parts and extend side by side.

19. The display device of claim 18 , further comprising:

a display driver mounted on a central portion of the flexible film, wherein

the first voltage line is disposed at an edge of the flexible film and another edge of the flexible film opposite to the edge, and

the second voltage line is disposed between the first voltage line and the display driver.

20. The display device of claim 18 , further comprising:

a display driver mounted on a central portion of the flexible film, wherein

the first voltage line is disposed on a side of the display driver, and

the second voltage line is disposed on another side of the display driver opposite to the side of the display driver.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2022
From: KIM, SOO YEON; IM, TAE GON; KIM, JI HYUN; LEE, JONG JAE; LEE, JUN PYO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 062207/0612 →
Priority Claims (1)
KR 10-2022-0022931 · Feb 22, 2022 · national
Continuity (1)
Related Publication 20230268282A1 · Aug 24, 2023
References Cited (11)
US 9237628B2 · Shin et al. · 2016 [cited by applicant]
US 20140111116A1 · Shin · 2014 [cited by examiner]
US 20140117314A1 · Jeong · 2014 [cited by examiner]
US 20180020550A1 · Jang · 2018 [cited by examiner]
KR 1020070010288 · 2007 [cited by applicant]
KR 101484642 · 2015 [cited by applicant]
KR 1020150064797 · 2015 [cited by applicant]
KR 1020150123058 · 2015 [cited by applicant]
KR 1020180008999 · 2018 [cited by applicant]
KR 1020180025392 · 2018 [cited by applicant]
KR 1020180035270 · 2018 [cited by applicant]