IP Library › Granted Patent US 12,451,046
Granted Patent B2
US 12,451,046 · App. 18/577,661 · Granted Oct 21, 2025

Driver module and display device

Inventors: Xin Fang (Beijing, CN); Wenchao Wang (Beijing, CN); Sangjin Park (Beijing, CN); Jixiang Chen (Beijing, CN); Xiaolong Chen (Beijing, CN); Lixia Zhang (Beijing, CN)
Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd.; Beijing BOE Technology Development Co., Ltd.
G09G3/2092G09G3/3266G09G3/3677G09G2310/0267
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Quick Facts
Patent No.
US 12,451,046
App. No.
18/577,661
Granted
Oct 21, 2025
Kind
B2
Abstract

A driver module includes a first driver unit and a first control unit; the first driver unit includes M levels of first driver circuits; M is a positive integer; m is a positive integer less than or equal to M; the m-th level first drive signal output terminal is electrically connected to a first terminal of an m-th row first gate line, to provide an m-th level first drive signal to the m-th row first gate line; the first control unit includes M first control circuits; an m-th first control circuit included in the first control unit is electrically connected to a second terminal of the m-th row first gate line, configured to control the second terminal of the m-th row first gate line to receive an ineffective voltage signal when a voltage value of the m-th level first drive signal changes from an effective voltage to an ineffective voltage.

Claims (92)

1. A driver module, applied to a display device including M rows of first gate lines; the driver module comprising: a first driver unit and a first control unit; wherein the first driver unit comprises M levels of first driver circuits; an m-th level first driver circuit comprises an m-th level first drive signal output terminal; M is a positive integer; m is a positive integer less than or equal to M;

the m-th level first drive signal output terminal is electrically connected to a first terminal of an m-th row first gate line, and is configured to provide an m-th level first drive signal to the m-th row first gate line through the m-th level first drive signal output terminal;

the first control unit comprises M first control circuits;

an m-th first control circuit comprised in the first control unit is electrically connected to a second terminal of the m-th row first gate line, and configured to control the second terminal of the m-th row first gate line to receive an ineffective voltage signal when a voltage value of the m-th level first drive signal changes from an effective voltage to an ineffective voltage;

the first terminal and the second terminal are opposite terminals;

wherein the m-th first control circuit is configured to control a connection between the second terminal of the m-th row first gate line and a first voltage signal terminal, under control of an m-th first control signal provided by an m-th first control terminal;

wherein the m-th level first driver circuit is electrically connected to an m-th level first output clock signal line, and configured to, under control of a potential of an m-th level first pull-up node, control the m-th level first output clock signal line to provide an m-th level first output clock signal to the m-th level first drive signal output terminal;

the m-th first control terminal is electrically connected to an m-th first control clock signal line;

the m-th first control clock signal line is configured to provide an m-th first control clock signal;

the m-th level first output clock signal and the m-th first control clock signal are reciprocal signals.

2. The driver module according to claim 1 , wherein the display device further comprises N rows of second gate lines; the driver module further comprises a second driver unit and a second control unit; the second driver unit comprises N levels of second driver circuits; an n-th level second driver circuit comprises an n-th level second drive signal output terminal; N is a positive integer; n is a positive integer less than or equal to N;

the n-th level second drive signal output terminal is electrically connected to a second terminal of an n-th row second gate line, and configured to provide an n-th level second drive signal to the n-th row second gate line through the n-th level second drive signal output terminal;

the second control unit comprises N second control circuits;

an n-th second control circuit comprised in the second control unit is electrically connected to a first terminal of the n-th row second gate line, and configured to control the first terminal of the n-th row second gate line to receive an ineffective voltage signal when a voltage value of the n-th level second drive signal changes from an effective voltage to an ineffective voltage.

3. The driver module according to claim 2 , wherein the n-th second control circuit is configured to, under control of an n-th second control signal provided by an n-th second control terminal, control a connection between the first terminal of the n-th row second gate line and a second voltage signal terminal.

4. The driver module according to claim 3 , wherein the n-th second control circuit comprises an n-th second control transistor;

a gate of the n-th second control transistor is electrically connected to the n-th second control terminal, a first pole of the n-th second control transistor is electrically connected to the first terminal of the n-th row second gate line, and a second pole of the n-th second control transistor is electrically connected to the second voltage signal terminal;

or,

wherein the n-th level second driver circuit is electrically connected to an n-th level second output clock signal line, and configured to, under control of a potential of an n-th level second pull-up node, control the n-th level second output clock signal line to provide an n-th level second output clock signal to the n-th level second drive signal output terminal;

the n-th second control terminal is electrically connected to an n-th second control clock signal line;

the n-th second control clock signal line is configured to provide an n-th second control clock signal;

the n-th level second output clock signal and the n-th second control clock signal are reciprocal signals.

5. The driver module according to claim 4 , wherein the n-th level second driver circuit comprises an n-th level second driver transistor;

a gate of the n-th level second driver transistor is electrically connected to the n-th level second pull-up node, a first pole of the n-th level second driver transistor is electrically connected to the n-th level second output clock signal line, and a second pole of the n-th level second driver transistor is electrically connected to the n-th level second drive signal output terminal;

a channel width of the n-th second control transistor is greater than or equal to a third width but less than or equal to a fourth width;

a channel length of the n-th second control transistor is greater than a channel length of the n-th level second driver transistor;

the third width is half of a channel width of the n-th level second driver transistor;

the fourth width is 1.5 times the channel width of the n-th level second driver transistor.

6. The driver module according to claim 3 , wherein the second voltage signal terminal is a direct current voltage signal terminal, and the second voltage signal terminal is configured to provide an ineffective voltage signal; or,

wherein the second voltage signal terminal is electrically connected to the n-th level second output clock signal line.

7. The driver module according to claim 1 , wherein, the m-th first control circuit comprises an m-th first control transistor;

a gate of the m-th first control transistor is electrically connected to the m-th first control terminal, a first pole of the m-th first control transistor is electrically connected to the second terminal of the m-th row first gate line, and a second pole of the m-th first control transistor is electrically connected to the first voltage signal terminal.

8. The driver module according to claim 7 , wherein the m-th level first driver circuit comprises an m-th level first driver transistor;

a gate of the m-th level first driver transistor is electrically connected to the m-th level first pull-up node, a first pole of the m-th level first driver transistor is electrically connected to the m-th level first output clock signal line, and a second pole of the m-th level first driver transistor is electrically connected to the m-th level first drive signal output terminal;

a channel width of the m-th first control transistor is greater than or equal to a first width but less than or equal to a second width;

a channel length of the m-th first control transistor is greater than a channel length of the m-th level first driver transistor;

the first width is half of a channel width of the m-th level first driver transistor;

the second width is 1.5 times the channel width of the m-th level first driver transistor.

9. The driver module according to claim 1 , wherein the first voltage signal terminal is a direct current voltage signal terminal, and the first voltage signal terminal is configured to provide an ineffective voltage signal.

10. The driver module according to claim 1 , wherein the first voltage signal terminal is electrically connected to the m-th level first output clock signal line.

11. A display device, comprising the driver module according to claim 1 .

12. A driver module, applied to a display device including M rows of first gate lines; the driver module comprising: a first driver unit and a first control unit; wherein the first driver unit comprises M levels of first driver circuits; an m-th level first driver circuit comprises an m-th level first drive signal output terminal; M is a positive integer; m is a positive integer less than or equal to M;

the m-th level first drive signal output terminal is electrically connected to a first terminal of an m-th row first gate line, and is configured to provide an m-th level first drive signal to the m-th row first gate line through the m-th level first drive signal output terminal;

the first control unit comprises M first control circuits;

an m-th first control circuit comprised in the first control unit is electrically connected to a second terminal of the m-th row first gate line, and configured to control the second terminal of the m-th row first gate line to receive an ineffective voltage signal when a voltage value of the m-th level first drive signal changes from an effective voltage to an ineffective voltage;

the first terminal and the second terminal are opposite terminals;

wherein the display device further comprises N rows of second gate lines; the driver module further comprises a second driver unit and a second control unit; the second driver unit comprises N levels of second driver circuits; an n-th level second driver circuit comprises an n-th level second drive signal output terminal; N is a positive integer; n is a positive integer less than or equal to N;

the n-th level second drive signal output terminal is electrically connected to a second terminal of an n-th row second gate line, and configured to provide an n-th level second drive signal to the n-th row second gate line through the n-th level second drive signal output terminal;

the second control unit comprises N second control circuits;

an n-th second control circuit comprised in the second control unit is electrically connected to a first terminal of the n-th row second gate line, and configured to control the first terminal of the n-th row second gate line to receive an ineffective voltage signal when a voltage value of the n-th level second drive signal changes from an effective voltage to an ineffective voltage;

wherein an a-th first control circuit comprised in the first control unit is configured to, under control of an a-th first control signal provided by an a-th first control terminal, control a connection between a second terminal of an a-th row first gate line and a first voltage signal terminal;

an a-th level first driver circuit comprised in the first driver unit is electrically connected to an a-th level first output clock signal line, and configured to, under control of a potential of an a-th level first pull-up node, control the a-th level first output clock signal line to provide an a-th level first output clock signal to an a-th level first drive signal output terminal;

a b-th level second driver circuit comprised in the second driver unit is electrically connected to a b-th level second output clock signal line, and configured to, under control of a potential of a b-th level second pull-up node, control the b-th level second output clock signal line to provide a b-th level second output clock signal to a b-th level second drive signal output terminal;

the a-th level first output clock signal line is configured to provide the a-th level first output clock signal, the b-th level second output clock signal line is configured to provide the b-th level second output clock signal, and the a-th level first output clock signal and the b-th level second output clock signal are reciprocal signals;

the a-th first control terminal is electrically connected to a b-th level second drive signal terminal comprised in the b-th level second driver circuit;

values a and b are positive integers.

13. The driver module according to claim 12 , wherein the a-th first control circuit comprises an a-th first control transistor;

a gate of the a-th first control transistor is electrically connected to the b-th level second drive signal terminal, a first pole of the a-th first control transistor is electrically connected to the second terminal of the a-th row first gate line, and a second pole of the a-th first control transistor is electrically connected to the first voltage signal terminal.

14. The driver module according to claim 12 , wherein, a c-th second control circuit comprised in the second control unit is configured to, under control of a c-th second control signal provided by a c-th second control terminal, control a connection between a first terminal of a c-th row second gate line and a second voltage signal terminal;

a c-th level second driver circuit comprised in the second driver unit is electrically connected to a c-th level second output clock signal line, and configured to, under control of a potential of a c-th level second pull-up node, control the c-th level second output clock signal line to provide a c-th level second output clock signal to a c-th level second drive signal output terminal;

a d-th level first driver circuit comprised in the first driver unit is electrically connected to a d-th level first output clock signal line, and configured to, under control of a potential of a d-th level first pull-up node, control the d-th level first output clock signal line to provide a d-th level first output clock signal to a d-th level first drive signal output terminal;

the d-th level first output clock signal line is configured to provide the d-th level first output clock signal, the c-th level second output clock signal line is configured to provide the c-th level second output clock signal, and the d-th level first output clock signal and the c-th level second output clock signal are reciprocal signals;

the c-th second control terminal is electrically connected to a d-th level first drive signal terminal comprised in the d-th first driver circuit;

values c and d are positive integers.

15. The driver module according to claim 14 , wherein the c-th second control circuit comprises a c-th second control transistor;

a gate of the c-th second control transistor is electrically connected to the d-th level first drive signal terminal, a first pole of the c-th second control transistor is electrically connected to the first terminal of the c-th row second gate line, and a second pole of the c-th second control transistor is electrically connected to the second voltage signal terminal.

16. A driver module, applied to a display device including M rows of first gate lines; the driver module comprising: a first driver unit and a first control unit; wherein the first driver unit comprises M levels of first driver circuits; an m-th level first driver circuit comprises an m-th level first drive signal output terminal; M is a positive integer; m is a positive integer less than or equal to M;

the m-th level first drive signal output terminal is electrically connected to a first terminal of an m-th row first gate line, and is configured to provide an m-th level first drive signal to the m-th row first gate line through the m-th level first drive signal output terminal;

the first control unit comprises M first control circuits;

an m-th first control circuit comprised in the first control unit is electrically connected to a second terminal of the m-th row first gate line, and configured to control the second terminal of the m-th row first gate line to receive an ineffective voltage signal when a voltage value of the m-th level first drive signal changes from an effective voltage to an ineffective voltage;

the first terminal and the second terminal are opposite terminals:

wherein the display device further comprises N rows of second gate lines; the driver module further comprises a second driver unit and a second control unit; the second driver unit comprises N levels of second driver circuits; an n-th level second driver circuit comprises an n-th level second drive signal output terminal; N is a positive integer; n is a positive integer less than or equal to N;

the n-th level second drive signal output terminal is electrically connected to a second terminal of an n-th row second gate line, and configured to provide an n-th level second drive signal to the n-th row second gate line through the n-th level second drive signal output terminal;

the second control unit comprises N second control circuits;

an n-th second control circuit comprised in the second control unit is electrically connected to a first terminal of the n-th row second gate line, and configured to control the first terminal of the n-th row second gate line to receive an ineffective voltage signal when a voltage value of the n-th level second drive signal changes from an effective voltage to an ineffective voltage;

wherein an a-th first control circuit comprised in the first control unit is configured to, under control of an a-th first control signal provided by an a-th first control terminal, control a connection between a second terminal of an a-th row first gate line and a first voltage signal terminal;

an a-th level first driver circuit comprised in the first driver unit is electrically connected to an a-th level first output clock signal line, and configured to, under control of a potential of an a-th level first pull-up node, control the a-th level first output clock signal line to provide an a-th level first output clock signal to an a-th level first drive signal output terminal;

an e-th level first driver circuit comprised in the first driver unit is electrically connected to an e-th level first output clock signal line, and configured to, under control of a potential of an e-th level first pull-up node, control the e-th level first output clock signal line to provide an e-th level first output clock signal to an e-th level first drive signal output terminal;

the a-th level first output clock signal line is configured to provide the a-th level first output clock signal, the e-th level first output clock signal line is configured to provide the e-th level first output clock signal, and the a-th level first output clock signal and the e-th level first output clock signal are reciprocal signals;

the a-th first control terminal is electrically connected to an e-th level first drive signal terminal comprised in the e-th level first driver circuit;

values a and e are positive integers.

17. The driver module according to claim 16 , wherein the a-th first control circuit comprises an a-th first control transistor;

a gate of the a-th first control transistor is electrically connected to the e-th level first drive signal terminal, a first pole of the a-th first control transistor is electrically connected to the second terminal of the a-th row first gate line, and a second pole of the a-th first control transistor is electrically connected to the first voltage signal terminal.

18. The driver module according to claim 16 , wherein a c-th second control circuit comprised in the second control unit is configured to, under control of a c-th second control signal provided by a c-th second control terminal, control a connection between a first terminal of a c-th row second gate line and a second voltage signal terminal;

a c-th level second driver circuit comprised in the second driver unit is electrically connected to a c-th level second output clock signal line, and configured to, under control of a potential of a c-th level second pull-up node, control the c-th level second output clock signal line to provide a c-th level second output clock signal to a c-th level second drive signal output terminal;

an f-th level second driver circuit comprised in the second driver unit is electrically connected to an f-th level second output clock signal line, and configured to, under control of a potential of an f-th level second pull-up node, control the f-th level second output clock signal line to provide an f-th level second output clock signal to an f-th level second drive signal output terminal;

the c-th level second output clock signal line is configured to provide the c-th level second output clock signal, the f-th level second output clock signal line is configured to provide the f-th level second output clock signal, and the c-th level second output clock signal and the f-th level second output clock signal are reciprocal signals;

the c-th second control terminal is electrically connected to an f-th level second drive signal terminal comprised in the f-th level second driver circuit;

values c and f are positive integers.

19. The driver module according to claim 18 , wherein

the c-th second control circuit comprises a c-th second control transistor;

a gate of the c-th second control transistor is electrically connected to the f-th level second drive signal terminal, a first pole of the c-th second control transistor is electrically connected to the first terminal of the c-th row second gate line, and a second pole of the c-th second control transistor is electrically connected to the second voltage signal terminal.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2025
From: BOE TECHNOLOGY GROUP CO., LTD.
To: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
Reel/Frame 072866/0632 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2024
From: FANG, XIN; WANG, WENCHAO; PARK, SANGJIN; CHEN, JIXIANG; CHEN, XIAOLONG; ZHANG, LIXIA
To: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 066084/0717 →
Continuity (1)
Related Publication 20250124843A1 · Apr 17, 2025
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