IP Library › Granted Patent US 10,417,969
Granted Patent B2
US 10,417,969 · App. 15/865,762 · Granted Sep 17, 2019

Organic light-emitting diode (OLED) display panel, driving method thereof and display apparatus

Inventors: Xingyao Zhou (Shanghai, CN); Chuanli Leng (Shanghai, CN); Yuan Li (Shanghai, CN); Yana Gao (Shanghai, CN); Yue Li (Shanghai, CN); Renyuan Zhu (Shanghai, CN); Dongxu Xiang (Shanghai, CN)
Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
G09G3/3266G09G2300/0404G09G2310/0221G09G2320/0233G09G2320/0257G09G2320/0626
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Quick Facts
Patent No.
US 10,417,969
App. No.
15/865,762
Granted
Sep 17, 2019
Kind
B2
Abstract

An organic light emitting (OLED) display panel, a driving method thereof, and a display apparatus are provided. The OLED display panel comprises a display region including N number of pixel rows and a non-display region including a light-emitting driver circuit and a scanning driver circuit. The display region includes a first display region including N 1 number of pixel rows and a second display region including N 2 number of pixel rows, where N 1 , N 2 , and N are positive integers, and N 1 +N 2 =N. A pixel row in the second display region has a smaller number of pixels than a pixel row in the first display region. The light-emitting driver circuit is configured to, in scanning time S for each frame, supply a light-emitting control signal having n number of light-emitting cycles to each pixel row in the display region, where n is a positive integer.

Claims (211)

1. An organic light-emitting diode (OLED) display panel, comprising:

a display region including N number of pixel rows; and

a non-display region including a light-emitting driver circuit and a scanning driver circuit,

wherein:

the display region includes a first display region including N 1 number of pixel rows and a second display region including N 2 number of pixel rows, where N 1 , N 2 , and N are positive integers, and N 1 +N 2 =N;

a pixel row in the second display region has a smaller number of pixels than a pixel row in the first display region;

the light-emitting driver circuit is configured to, in scanning time S for each frame, supply a light-emitting control signal having n number of light-emitting cycles to each pixel row in the display region, where n is a positive integer;

the scanning driver circuit is configured to, in the scanning time S for each frame, scan each pixel row in the display region; and

the N 2 number of pixel rows in the second display region and the scanning time S for each frame satisfies

(

k

-

0.1

)

⁢

S

n

≤

N

2

⁢

t

≤

(

k

+

0.1

)

⁢

S

n

,

and N 2 t>0, where k is an integer greater than or equal to 0, and t is scanning time for the scanning driver circuit to scan one pixel row.

2. The OLED display panel according to claim 1 , wherein:

N 2 is an integer between 80 and 220.

3. The OLED display panel according to claim 1 , wherein:

the scanning time S for each frame includes display region scanning time, front porch time, and back porch time;

the display region scanning time for the N number of pixel rows is Nt;

the front porch time and the back porch time for M number of pixel rows are Mt; and

S=t(N+M).

4. The OLED display panel according to claim 3 , wherein:

N

2

=

k

⁢

(

N

+

M

)

n

.

5. The OLED display panel according to claim 3 , wherein:

M

=

m

⁢

(

N

+

M

)

n

,

where m is an integer greater than 0.

6. The OLED display panel according to claim 3 , wherein:

M is an integer between 10 and 20.

7. The OLED display panel according to claim 3 , wherein:

M is an integer between 280 and 320.

8. The OLED display panel according to claim 1 , wherein:

the second display region is disposed above or below the first display region, and the second display region and the first display region are arranged in a same plane;

the second display region includes a first sub-region and a second sub-region;

a certain number of pixels in each pixel row are disposed in the first sub-region, and remained pixels in the same pixel row in the second display region are disposed in the second sub-region;

the OLED display panel includes an irregular-shaped region; and

the first sub-region and the second sub-region are separated by the irregular-shaped region.

9. The OLED display panel according to claim 8 , wherein:

a contour of the irregular-shaped region is an arc.

10. The OLED display panel according to claim 8 , wherein:

the irregular-shaped region is a transparent display region.

11. The OLED display panel according to claim 8 , wherein:

the irregular-shaped region is configured with one or more of a camera, a microphone, an optical sensor, a distance sensor, an iris recognition sensor, and a fingerprint recognition sensor.

12. The OLED display panel according to claim 8 , wherein:

the first sub-region and the second sub-region are configured symmetrically.

13. A display apparatus, comprising an OLED display panel, wherein the OLED display panel comprises:

a display region including N number of pixel rows; and

a non-display region including a light-emitting driver circuit and a scanning driver circuit,

wherein:

the display region includes a first display region including N 1 number of pixel rows and a second display region including N 2 number of pixel rows, where N 1 , N 2 , and N are positive integers, and N 1 +N 2 =N;

a pixel row in the second display region has a smaller number of pixels than a pixel row in the first display region;

the light-emitting driver circuit is configured to, in scanning time S for each frame, supply a light-emitting control signal having n number of light-emitting cycles to each pixel row in the display region, where n is a positive integer;

the scanning driver circuit is configured to, in the scanning time S for each frame, scan each pixel row in the display region; and

the N 2 number of pixel rows in the second display region and scanning time S for each frame satisfies

(

k

-

0.1

)

⁢

S

n

≤

N

2

⁢

t

≤

(

k

+

0.1

)

⁢

S

n

,

and N 2 t>0, where k is an integer greater than or equal to 0, and t is scanning time for the scanning driver circuit to scan one pixel row.

14. The display apparatus according to claim 13 , wherein:

N 2 is an integer between 80 and 220.

15. The display apparatus according to claim 13 , wherein:

the scanning time S for each frame includes display region scanning time, front porch time, and back porch time;

the display region scanning time for the N number of pixel rows is Nt;

the front porch time and the back porch time for M number of pixel rows are Mt; and

S=t(N+M).

16. A driving method for an OLED display panel comprising:

a display region including N number of pixel rows; and a non-display region including a light-emitting driver circuit and a scanning driver circuit, wherein: the display region includes a first display region including N 1 number of pixel rows and a second display region including N 2 number of pixel rows, where N 1 , N 2 , and N are positive integers, and N 1 +N 2 =N; a pixel row in the second display region has a smaller number of pixels than a pixel row in the first display region; the light-emitting driver circuit is configured to, in scanning time S for each frame, supply a light-emitting control signal having n number of light-emitting cycles to each pixel row in the display region, where n is a positive integer; the scanning driver circuit is configured to, in the scanning time S for each frame, scan each pixel row in the display region; and the N 2 number of pixel rows in the second display region and scanning time S for each frame satisfies

(

k

-

0.1

)

⁢

S

n

≤

N

2

⁢

t

≤

(

k

+

0.1

)

⁢

S

n

,

and N 2 t>0, where k is an integer greater than or equal to 0, and t is scanning time for the scanning driver circuit to scan one pixel row, wherein the driving method comprises:

in the scanning time S for each frame, supplying, by the light-emitting driver circuit, the light-emitting control signal having the n number of light-emitting cycles to each pixel row; and

in the scanning time S for each frame, scanning, by the scanning driver circuit, each pixel row in the display region,

wherein:

the N 2 number of pixel rows in the second display region and the scanning time S for each frame satisfies

(

k

-

0.1

)

⁢

S

n

≤

N

2

⁢

t

≤

(

k

+

0.1

)

⁢

S

n

,

and N 2 t>0, where k is an integer greater than or equal to 0, and t is the scanning time for the scanning driver circuit to scan one pixel row.

17. The driving method according to claim 16 , wherein:

N 2 is an integer between 80 and 220.

18. The driving method according to claim 16 , wherein:

the scanning time S for each frame includes display region scanning time, front porch time, and back porch time;

the display region scanning time for the N number of pixel rows is Nt;

the front porch time and the back porch time for M number of pixel rows are Mt; and

S=t(N+M).

19. The driving method according to claim 18 , wherein:

N

2

=

k

⁢

(

N

+

M

)

n

.

20. The driving method according to claim 18 , wherein:

M

=

m

⁢

(

N

+

M

)

n

,

where m is an integer greater than 0.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2018
From: ZHOU, XINGYAO; LENG, CHUANLI; LI, YUAN; GAO, YANA; LI, YUE; ZHU, RENYUAN; XIANG, DONGXU
To: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Reel/Frame 045029/0225 →
Priority Claims (1)
CN 2017 1 0807056 · Sep 8, 2017 · national
Continuity (1)
Related Publication 20180130421A1 · May 10, 2018
Cited By (1)
US 12,530,095