IP Library Granted Patent US 11,594,558
Granted Patent B2
US 11,594,558 · App. 17/144,273 · Granted Feb 28, 2023

Display device

Inventors: Jin Sung An (Seongnam-si, KR); Seok Je Seong (Seongnam-si, KR); Seong Jun Lee (Seoul, KR); Ji Seon Lee (Hwaseong-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/124G09G3/3291G09G2300/0426H01L27/3276
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Quick Facts
Patent No.
US 11,594,558
App. No.
17/144,273
Granted
Feb 28, 2023
Kind
B2
Abstract

A display device includes a first active pattern, a first conductive pattern including a gate electrode overlapping the first active pattern, a first gate line overlapping the first active pattern and extending in a first direction, and a second gate line extending in the first direction, a second conductive pattern disposed on the first conductive pattern and including a third gate line extending in the first direction and a fourth gate line extending in the first direction, a second active pattern disposed on the second conductive pattern and including a material different from a material of the first active pattern, and a third conductive pattern disposed on the second active pattern and including a first upper electrode overlapping the third gate line and connected to the third gate line, and a second upper electrode overlapping the fourth gate line and connected to the fourth gate line.

Claims (37)

1. A display device comprising:

a first active pattern;

a first conductive pattern including:

a gate electrode overlapping the first active pattern;

a first gate electrode overlapping the first active pattern and extending in a first direction; and

a second gate electrode extending in the first direction;

a second conductive pattern disposed on the first conductive pattern and including:

a third gate electrode extending in the first direction; and

a fourth gate electrode extending in the first direction;

a second active pattern disposed on the second conductive pattern and including a material different from a material of the first active pattern; and

a third conductive pattern disposed on the second active pattern and including:

a first upper electrode overlapping the third gate electrode and electrically connected to the third gate electrode; and

a second upper electrode overlapping the fourth gate electrode and electrically connected to the fourth gate electrode.

2. The display device of claim 1 , further comprising:

a fourth conductive pattern disposed on the third conductive pattern, and including a horizontal connection line extending in the first direction and applied with a first data voltage.

3. The display device of claim 2 , further comprising:

a fifth conductive pattern disposed on the fourth conductive pattern, and including a data line extending in a second direction intersecting the first direction and applied with the second data voltage, a vertical connection line extending in the second direction and applied with the first data voltage and a high power voltage line extending in the second direction and applied with the high power voltage.

4. The display device of claim 3 , wherein the fourth conductive pattern further includes a data voltage pad, and

wherein the data line overlaps the data voltage pad and is electrically connected to the data voltage pad.

5. The display device of claim 3 , wherein the vertical connection line overlaps the horizontal connection line and is electrically connected to the horizontal connection line.

6. The display device of claim 3 , wherein the fourth conductive pattern further includes a shielding pattern, and

wherein the high power voltage line overlaps the shielding pattern.

7. The display device of claim 1 , wherein a first gate signal is applied to the first gate electrode, a second gate signal is applied to the third gate electrode, and a third gate signal is applied to the fourth gate electrode.

8. The display device of claim 1 , wherein a light emitting control signal is applied to the second gate electrode.

9. The display device of claim 1 , wherein the second conductive pattern further includes a gate initialization voltage line.

10. The display device of claim 9 , further comprising:

a fourth conductive pattern disposed on the third conductive pattern,

wherein the fourth conductive pattern further includes a gate initialization voltage connection pattern.

11. The display device of claim 10 , wherein the gate initialization voltage connection pattern overlaps the gate initialization voltage line and is electrically connected to the gate initialization voltage line.

12. The display device of claim 11 , wherein the gate initialization voltage connection pattern overlaps the second active pattern and is electrically connected to the second active pattern.

13. The display device of claim 1 , wherein the first active pattern includes a silicon semiconductor and the second active pattern includes an oxide semiconductor.

14. The display device of claim 1 , wherein a portion of the first gate electrode and a portion of the first active pattern, which overlap each other, constitute a p-channel transistor.

15. The display device of claim 1 , wherein a portion of the second gate electrode and a portion of the first active pattern, which overlap each other, constitute a p-channel transistor.

16. The display device of claim 1 , wherein a portion of the gate electrode and a portion of the first active pattern, which overlap each other, constitute a p-channel transistor.

17. The display device of claim 1 , wherein a portion of the first upper electrode and a portion of the second active pattern, which overlap each other, constitute an n-channel transistor.

18. The display device of claim 1 , wherein a portion of the second upper electrode and a portion of the second active pattern, which overlap each other, constitute an n-channel transistor.

19. The display device of claim 6 , wherein the high power voltage line is electrically connected to the shielding pattern.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 18, 2021
From: AN, JIN SUNG; SEONG, SEOK JE; LEE, SEONG JUN; LEE, JI SEON
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056274/0910 →
Priority Claims (1)
KR 10-2020-0028653 · Mar 6, 2020 · national
Continuity (1)
Related Publication 20210280609A1 · Sep 9, 2021