IP Library Granted Patent US 10,878,749
Granted Patent B2
US 10,878,749 · App. 15/621,481 · Granted Dec 29, 2020

Display device and driving method thereof

Inventors: Jae Sic Lee (Yongin-si, KR); Seung Yeon Cho (Yongin-si, KR); Sang Moo Choi (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G09G3/3233G09G3/20G09G3/3208G09G3/3266G09G3/3275G09G2300/0861G09G2310/0205G09G2310/0267G09G2310/0283G09G2310/08G09G2320/0233G09G2320/0686
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Quick Facts
Patent No.
US 10,878,749
App. No.
15/621,481
Granted
Dec 29, 2020
Kind
B2
Abstract

A display device includes a plurality of first pixels coupled to first scan lines and data lines and a plurality of second pixels coupled to second scan lines and the data lines. Each of the first scan lines receives 2i first scan signals during a frame period. Each of the second scan lines receives i second scan signals during the frame period, where i is a natural number.

Claims (53)

1. A display device, comprising:

a plurality of first pixels coupled to first scan lines and data lines; and

a plurality of second pixels coupled to second scan lines and the data lines, wherein

each of the first scan lines is to receive first scan signals during a first period of a frame period, each of the second scan lines is to receive second scan signals during a second period of the frame period, and each of the first scan lines is to receive the first scan signals during a third period of the frame period,

the first scan signals and the second scan signals are set to a gate-on voltage,

at least one first scan signal of the first scan signals overlaps at least one second scan signal of the second scan signals, and

the first period and the second period are partially overlapped, the second period and the third period are partially overlapped, and the first period and the third period are not overlapped.

2. The display device as claimed in claim 1 , further comprising:

a first scan driver to supply the first scan signals to each of the first scan lines; and

a second scan driver to supply the second scan signals to each of the second scan lines.

3. The display device as claimed in claim 2 , further comprising:

a timing controller to supply a first start signal and a third start signal to the first scan driver and to supply a second start signal to the second scan driver.

4. The display device as claimed in claim 3 , wherein the second scan driver is to supply the second scan signals to each of the second scan lines based on the second start signal.

5. The display device as claimed in claim 4 , wherein the first scan driver is to:

supply some first scan signals of the first scan signals to each of the first scan lines based on the first start signal; and

supply other first scan signals of the first scan signals to each of the first scan lines based on the second start signal.

6. The display device as claimed in claim 5 , wherein a first scan signal, among the first scan signals supplied to each of the first scan lines based on the second start signal, is to overlap a second scan signal of the second scan signals finally supplied during the frame period.

7. The display device as claimed in claim 3 , wherein the first start signal and the second start signal have a same width.

8. The display device as claimed in claim 3 , wherein the timing controller is to sequentially supply the first start signal, the second start signal, and the third start signal.

9. The display device as claimed in claim 1 , further comprising:

a first scan driver to supply some first scan signals of the first scan signals to each of the first scan lines;

a second scan driver to supply the second scan signals to each of the second scan lines; and

a third scan driver to supply the first scan signals to each of the first scan lines.

10. The display device as claimed in claim 9 , wherein the second scan driver is to output the second scan signals based on an output signal of the first scan driver.

11. The display device as claimed in claim 9 , wherein the third scan driver is to output the first scan signals based on an output signal of the second scan driver.

12. The display device as claimed in claim 9 , further comprising:

a timing controller to supply a start signal to the first scan driver.

13. The display device as claimed in claim 1 , further comprising:

a data driver to supply a data signal to the data lines; and

a light emitting driver to supply a light emitting control signal to light emitting control lines coupled to the first pixels and the second pixels.

14. The display device as claimed in claim 13 , further comprising:

a demultiplexer coupled between the data driver and the data lines.

15. A display device, comprising:

a plurality of first pixels coupled to first scan lines and data lines;

a plurality of second pixels coupled to second scan lines and the data lines;

a first scan driver to supply first scan signals to each of the first scan lines during a first period of a frame period and to supply the first scan signals to each of the first scan lines during a third period of the frame period; and

a second scan driver to supply second scan signals to each of the second scan lines during a second period of the frame period, wherein

at least one first scan signal of the first scan signals overlaps at least one second scan signal of the second scan signals,

the first scan signals and the second scan signals are set to a gate-on voltage, and

the first period and the second period are partially overlapped, the second period and the third period are partially overlapped, and the first period and the third period are not overlapped.

16. The display device as claimed in claim 15 , further comprising:

a timing controller to supply a first start signal and a third start signal to the first scan driver and to supply a second start signal to the second scan driver.

17. The display device as claimed in claim 16 , wherein the first start signal and the third start signal have a narrower width than the second start signal.

18. The display device as claimed in claim 16 , wherein the timing controller is to sequentially supply the first start signal, the second start signal, and the third start signal.

19. The display device as claimed in claim 16 , wherein the second scan driver is to sequentially supply the second scan signals to each of the second scan lines based on the second start signal.

20. The display device as claimed in claim 19 , wherein the first scan driver is to:

supply the first scan signals to each of the first scan lines when the first start signal is supplied; and

supply the first scan signals to each of the first scan lines when the third start signal is supplied.

21. The display device as claimed in claim 15 , further comprising:

a data driver to supply a data signal to the data lines; and

a light emitting driver to supply a light emitting control signal to light emitting control lines coupled to the first pixels and the second pixels.

22. The display device as claimed in claim 21 , further comprising:

a DEMUX coupled between the data driver and the data lines.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 13, 2017
From: LEE, JAE SIC; CHO, SEUNG YEON; CHOI, SANG MOO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 042694/0736 →
Priority Claims (1)
KR 10-2016-0117540 · Sep 12, 2016 · national
Continuity (1)
Related Publication 20180075803A1 · Mar 15, 2018
Cited By (2)
US 12,236,913 US 12,394,355