CN104658467B - display device and repairing method thereof - Google Patents

Abstract

The present invention discloses a display device and a remedy method thereof. The display device has a plurality of column pixels and a plurality of gate driving circuits. The plurality of pixels in each column of pixels are coupled to gate lines, and the gate lines are coupled to There are at least two gate driving circuits, wherein the gate driving circuit has a signal generating module and a voltage stabilizing module. The signal generation module is coupled to the gate line through the first transmission path for outputting the gate drive control signal to the pixel. The voltage stabilizing module is coupled to the gate line through the second transmission path to stabilize the voltage level on the gate line. Remedies for the display device include determining whether there is an abnormality in the gate drive circuit. When an abnormality occurs in the gate driving circuit, the first transmission path of the gate driving circuit is cut off, and the voltage level of the gate line is stabilized by the voltage stabilizing module through the second transmission path of the gate driving circuit.

Description

Display device and its remedy

technical field

The present invention relates to a display device and its remedial method, in particular to a method for improving the circuit layout of the internal gate drive circuit of the display device so as to restore the display device when the gate drive circuit is abnormal.

Background technique

Most of the current display devices use double-sided driving to drive the column pixels in the display device. In double-sided driving, a gate driving circuit is respectively coupled to two ends of a gate line coupled to a row of pixels, and the gate driving circuit generates a gate driving voltage to drive the row of pixels.

However, some of the transistors constituting the gate drive circuit have a large area. During the process of the display device, it is easy for some impurities to fall into the transistor and cause a short circuit of the transistor. At this time, the short-circuited transistor will cause the abnormality of the gate drive circuit. When the gate driving circuit coupled to one of the two ends of the gate line is abnormal, the output of the gate driving circuit at the other end will be affected, resulting in a line defect of the display device.

In view of the problem that the gate drive circuit is likely to cause abnormalities, it is necessary to develop a display device with an improved gate drive circuit wiring design, so that when an abnormality occurs in the display device, the improved wiring of the gate drive circuit can be used to improve the display. line defects of the device, thereby improving the manufacturing yield of the display device.

Contents of the invention

The present invention provides a display device. By changing the circuit layout of the gate drive circuit, when the gate drive circuit of the display device is abnormal, the abnormal gate can be remedied by cutting off part of the lines inside the gate drive circuit. The row of pixels coupled to the driving circuit enables the display device to restore the normal display effect.

To achieve the above purpose, the present invention provides a display device and its remedy method. The display device has a plurality of columns of pixels and a plurality of gate driving circuits, and the plurality of pixels in each column of pixels are coupled to gate lines, and the gate lines are coupled to at least two gate driving circuits. At least one of the multiple gate drive circuits has a signal generating module and a voltage stabilizing module. The signal generation module is coupled to the gate line through the first transmission path, and is used for outputting the gate driving control signal to the pixel. The voltage stabilizing module is coupled to the gate line through the second transmission path for stabilizing the voltage level on the gate line.

The remedy method of the display device includes judging whether the gate driving circuit is abnormal. When the gate driving circuit is abnormal, the first transmission path of the abnormal side gate driving circuit is cut off, and the voltage level of the gate line is stabilized by the second transmission path of the gate driving circuit.

To sum up, the gate drive circuit in the display device of the present invention couples the signal generating module and the voltage stabilizing module respectively through the first transmission path and the second transmission path through the circuit layout of the first transmission path and the second transmission path. Connect to the gate line. By virtue of the circuit layout of the first transmission path and the second transmission path, when one of the gate drive circuits on the gate line of the display device of the present invention is abnormal, the first transmission path of the gate drive circuit can be cut off, and the signal generating module can be removed The abnormal voltage caused by the gate drive circuit is reserved for the second transmission path, and the voltage stabilization module of the gate drive circuit continues to stabilize the voltage level on the gate line, so that the voltage level on the gate line will not be caused by The entire abnormal gate driving circuit is cut off, causing the voltage level of the gate line to be too high, thereby rescuing the columns of pixels coupled to the abnormal gate driving circuit.

The above description of the disclosure of the present invention and the following description of the implementation are used to demonstrate and explain the spirit and principle of the present invention, and to provide further explanation of the scope of protection of the appended claims of the present invention.

Description of drawings

FIG. 1 is a schematic diagram of a display device drawn according to a first embodiment of the present invention;

2 is a schematic diagram of a gate driving circuit drawn according to a first embodiment of the present invention;

FIG. 3 is a flow chart of a display device remedy method drawn according to the first embodiment of the present invention;

4A is a schematic diagram of a gate driving circuit drawn according to a second embodiment of the present invention;

4B is a schematic diagram of a gate driving circuit drawn according to a third embodiment of the present invention;

4C is a schematic diagram of a gate driving circuit drawn according to a fourth embodiment of the present invention;

4D is a schematic diagram of a gate driving circuit drawn according to a fifth embodiment of the present invention;

FIG. 5 is a schematic diagram of a gate driving circuit drawn according to a sixth embodiment of the present invention.

Among them, reference signs:

10 signal generation module

11 pull-up unit

111 First switch

113 first end

115 second end

117 console

13 drop down unit

131 Second switch

133 first end

135 second end

137 console

15 control unit

151 control switch

153 first end

155 second end

157 console

30 voltage regulator module

31, 32 Regulator switch

50, 50a first transmission path

50b Third transmission path

50c Fourth transmission path

50d fifth transmission path

70 Second transmission path

PXr1, PXr2, PXrn Column pixels

GOA1, GOA2, GOAn, GOAn+2 gate drive circuit

PX pixels

G(1), G(2), G(n-2), G(n), G(n+4) gate lines

HC high potential terminal

RC1 The first reference signal terminal

RC2 Second reference signal terminal

ST scan signal terminal

LC1, LC2 regulator signal terminal

VSS low potential terminal

A, B, C, D, E, F, G, H, I, J nodes

detailed description

The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person familiar with the relevant technical field to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification and the claims With the scope of protection and drawings, anyone familiar with the art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIGS. 1 to 3 together. FIG. 1 is a schematic diagram of a display device drawn according to a first embodiment of the present invention, FIG. 2 is a schematic diagram of a gate driving circuit drawn according to a first embodiment of the present invention, and FIG. 3 It is a flowchart of a display device remedy method drawn according to the first embodiment of the present invention. As shown in the figure, the display device of the present invention has a plurality of row pixels PXr1, PXr2, ..., PXrn and a plurality of gate drive circuits GOA1, GOA2, ..., GOAn. Each column of pixels PXr1, PXr2, ..., PXrn has a plurality of pixels PX, and the pixels PX of each column of pixels PXr1, PXr2, ..., PXrn are respectively coupled to the gate lines G(1), G(2) , ..., G(n) on. Taking the gate line G(n) as an example, the gate line G(n) is coupled to at least two gate drive circuits GOAn, for example, the two ends of the gate line G(n) are respectively coupled to a gate Drive circuit GOAn or more gate drive circuits GOAn. In this embodiment, the pixels PX can also be respectively coupled to other circuits, such as a source driver circuit (not shown in the figure), a gate compensation circuit (not shown in the figure), or other circuits for driving or transmitting data signals to the pixels. PX circuit. Other circuits coupled to the pixel PX are technical contents well known to those skilled in the art, so details will not be described here.

In this embodiment, the gate driving circuits GOA1 , GOA2 , . . . , GOAn coupled to G(1), G(2), . . . Taking the gate driving circuit GOAn as an example, as shown in FIG. 2 , the signal generating module 10 is coupled to the gate line G(n) through the first transmission path 50 for outputting the gate driving control signal to the pixel PX. The voltage stabilizing module 30 is coupled to the gate line G(n) via the second transmission path 70 for stabilizing the voltage level on the gate line G(n).

The signal generating module 10 may include a pull-up unit 11 , a pull-down unit 13 and a control unit 15 . Taking the embodiment shown in FIG. 1 as an example, the pull-up unit 11 may have a first switch 111, the first end 113 of the first switch 111 is coupled to the high potential end HC, and the second end 115 is coupled to the high potential end HC through the first transmission path 50. Connected to the gate line G(n), the control terminal 117 receives the first reference signal RC1 to increase the voltage level of the gate line G(n). For example, assuming that the first switch 111 is an N-type transistor, when the control terminal 117 receives the first reference signal RC1 of a high voltage level, the first switch 111 is turned on, and the first switch 111 connects the gate line G(n ) is raised to the voltage level of the high potential terminal HC.

The pull-down unit 13 may have a second switch 131, the first end 133 of the second switch 131 is also coupled to the gate line G(n) via the first transmission path 50, the second end 135 is coupled to the low potential end VSS, and the control The terminal 137 is coupled to the second reference signal terminal for receiving the second reference signal RC2 and pulling down the voltage level of the gate line G(n), wherein the first terminal 133 of the second switch 131 is also connected to the second A second terminal 115 of the switch 111 . In the case of actual operation, when the second switch 131 is an N-type transistor, when the control terminal 137 of the second switch 131 receives the second reference signal RC2 of a high voltage level, the second switch 131 is turned on, and the gate The voltage level of the line G(n) is pulled down to the voltage level of the low voltage terminal VSS.

The pull-up unit 11 and the pull-down unit 13 are respectively controlled by the first reference signal RC1 and the second reference signal RC2 to determine the voltage level of the gate line G(n). The first reference signal RC1 may be the voltage level of the gate line G(n−2), and the second reference signal RC2 may be the voltage level of the gate line G(n+4).

The control unit 15 may have a control switch 151 , and a first end 153 of the control switch 151 is coupled to the gate line G(n) via the first transmission path 50 . In other words, the first terminal 153 of the control switch 151 is connected to the second terminal 115 of the first switch 111 , the first terminal 133 of the second switch 131 , and is connected to the voltage stabilizing module 30 via the second transmission path 70 . The control terminal 157 of the control switch 151 is coupled to the scan signal terminal ST, and is used to output the gate drive control signal to other gate drive circuits according to the scan signal, for example, the second terminal 155 of the control switch 151 is coupled to the gate The driving circuit GOAn+2 provides a first reference signal for the gate driving circuit GOAn+2.

The voltage stabilizing module 30 may have multiple stabilizing switches, such as the stabilizing switches 31 and 32 shown in FIG. 2 . Taking the regulator switch 31 as an example, the first terminal of the regulator switch 31 is coupled to the gate line G(n) via the second transmission path 70, and the second terminal of the regulator switch 31 is coupled to the low potential terminal VSS, wherein , the second end of the voltage stabilizing switch 31 is also connected to the second end 135 of the second switch 131 . The voltage stabilizing switch 31 is coupled to the voltage stabilizing signal terminal LC1 for stabilizing the voltage level on the gate line G(n) according to the voltage stabilizing signal. Wherein, the first end of the voltage stabilizing switch 32 among the plurality of voltage stabilizing switches is coupled to the gate line G(n) via the second transmission path 70, and the second end of the stabilizing switch 32 is coupled to the low potential terminal VSS, wherein , the second end of the voltage stabilizing switch 32 is also connected to the second end 135 of the second switch 131 and the second end of the voltage stabilizing switch 31 . The voltage stabilizing switch 32 is coupled to the voltage stabilizing signal terminal LC2 for stabilizing the voltage level on the gate line G(n) according to the voltage stabilizing signal. In this embodiment, the voltage stabilizing switch 31 and the voltage stabilizing switch 32 can stabilize the voltage level on the gate line G(n) according to the voltage stabilizing signals of the voltage stabilizing signal terminal LC1 and the voltage stabilizing signal terminal LC2 respectively in different time sequences. It is not intended to limit this embodiment. In other embodiments, the voltage stabilizing switch 31 and the voltage stabilizing switch 32 can also stabilize the voltage level on the gate line G(n) according to the voltage stabilizing signal of the same voltage stabilizing signal terminal.

In practice, due to the components in the gate drive circuit GOAn, such as the first switch 111, the second switch 131, the control switch 151 and the regulator switches 31, 32, the components that make up the signal generating module 10, such as the first switch 111. The second switch 131 and the control switch 151, because of the large size of the components, impurities are easy to fall into during the process, so that the first switch 111, the second switch 131 or the control switch 151 are short-circuited, so that the gate drive circuit GOAn Abnormally, the correct gate driving control signal cannot be output to drive the column pixels PXrn, resulting in a line defect of the display device, and making the display device display darker gray lines. Therefore, the signal generating module 10 and the voltage stabilizing module 30 are divided into two transmission paths to be coupled to the gate line G(n). When an abnormality occurs in the gate drive circuit GOAn, the first transmission path 50 can be cut off to remove the abnormality caused by the signal generating module 10, and the voltage stabilizing module 30 continues to stabilize the signal on the gate line G(n) via the second transmission path 70 voltage level.

Taking a practical example, when the gate driving circuit GOAn is normal, the voltage level on the gate line G(n) is about 16.6V. When there is a line defect (damage) with abnormal grayscale on the display device, it means that the gate driving circuit GOAn coupled to the column pixels may be abnormal. At this time, the first transmission path 50 of the gate driving circuit GOAn coupled to the column pixels can be cut off by laser cutting. After the first transmission path 50 is cut off, the voltage stabilizing module 30 is still coupled to the gate line G(n) via the second transmission path 70 to stabilize the voltage level on the gate line G(n), so the gate line G(n) ) is approximately 16.8V, which is almost the same as the normal voltage level of the gate drive circuit GOAn which is approximately 16.6V, thereby remediating the problem of line defects of the display device. Through the structure described in this embodiment, when the display device is performing line defect remediation in this embodiment, the voltage level on the gate line will not cause the gate line to be damaged due to the interruption of the entire abnormal gate drive circuit. The voltage level is too high, so that the abnormal display device can work normally.

In order to illustrate the remedy method of the display device of the present invention, the steps of the first embodiment will be described below. In step S20, it is determined whether the gate driving circuit GOAn coupled to the gate line G(n) is abnormal. Ways to judge whether there is an abnormality, such as observing whether there are line defects with gray scale abnormalities on the display device, judging whether the voltage level on the gate line G(n) is the normal driving voltage level or other appropriate methods . When the gate driving circuit GOAn coupled to the gate line G(n) is abnormal, in step S22 , the first transmission path 50 of the abnormal gate driving circuit GOAn is cut off. In practice, laser cutting or other suitable methods can be used to cut off the first transmission path 50 . In step S24 , the gate driving circuit GOAn that has cut off the first transmission path 50 stabilizes the voltage level of the gate line G(n) via the second transmission path 70 . In other words, the gate drive circuit GOAn that cuts off the first transmission path 50 can continue to use the voltage stabilizing module 30 to stabilize the voltage level on the gate line G(n) via the second transmission path 70, avoiding the gate line G(n) ) voltage level suddenly increases, which cannot improve the line defects of the display device.

In a variant embodiment of the present invention, the first transmission path may further have a truncated area. When an abnormality occurs in the gate driving circuit GOAn, laser cutting is used to cut off the cut-off area on the first transmission path, so as to rescue the display device.

Please refer to FIG. 1 and FIG. 4A to FIG. 4D together. FIG. 4A is a schematic diagram of a gate drive circuit drawn according to a second embodiment of the present invention, and FIG. 4B is a gate drive circuit drawn according to a third embodiment of the present invention. 4C is a schematic diagram of a gate driving circuit drawn according to a fourth embodiment of the present invention. FIG. 4D is a schematic diagram of a gate driving circuit drawn according to a fifth embodiment of the present invention. For the similarities between the embodiment shown in FIGS. 4A to 4D and the first embodiment, please refer to the first embodiment, and no further details are given here. As shown in FIG. 4A , the difference between the second embodiment and the first embodiment is that the signal generating module 10 is further coupled to the gate line G(n) via the first transmission path 50 a and the third transmission path 50 b. In more detail, the pull-up unit 11 is coupled to the gate line G(n) via the third transmission path 50a, and the pull-down unit 13 and the control unit 15 are coupled to the gate line G(n) via the third transmission path 50b. . For example, the pull-up unit 11 can be coupled to the gate line G(n) via the first transmission path 50 a via the second end 115 of the first switch 111 . The pull-down unit 13 can be coupled to the gate line G(n) via the first terminal 133 of the second switch 131 via the third transmission path 50b. The control unit 15 can control the first terminal 153 of the switch 151 to be coupled to the gate line G(n) via the third transmission path 50 b. The first terminal 133 of the second switch 131 and the first terminal 153 of the control switch 151 meet at the node A to form a third transmission path 50 b coupled to the gate line G(n). The first ends of the plurality of voltage stabilizing switches 31 and 32 in the voltage stabilizing module 30 are coupled to the gate line G(n) via the second transmission path 70 . In more detail, the first transmission path 50a, the second transmission path 70 and the third transmission path 50b meet at a node B, and the aforementioned three transmission paths are connected to the gate line G(n) via the node B. Therefore, the remedy method of the display device can further cut off the first transmission path 50a when the pull-up unit 11 is abnormal, and cut off the third transmission path 50b when one of the pull-down unit 13 and the control unit 15 is abnormal. . In this embodiment, the first transmission path 50a, the second transmission path 70 and the third transmission path 50b converge at one node B, which is not intended to limit the implementation of this embodiment. In other embodiments, the first transmission path 50a The second transmission path 70 can also be connected to the gate line G(n) at nodes C and D respectively, as shown in FIG. 4B .

In practical applications of this embodiment, the pull-up unit 11 and the pull-down unit 13 can also be coupled to the gate line G(n) via the third transmission path 50a, as shown in the fourth embodiment shown in FIG. 4C , the fourth The difference between this embodiment and the second embodiment is that the second terminal 115 of the first switch 111 and the first terminal 133 of the second switch 131 meet at the node E to form a first transmission path 50a coupled to the gate line G ( n). The first terminal 153 of the control switch 151 is coupled to the gate line G(n) via the third transmission path 50b. The first transmission path 50a, the second transmission path 70 and the third transmission path 50b meet at a node F, and the node F is coupled to the gate line G(n). Also shown in the fifth embodiment shown in FIG. 4D, the difference between the fifth embodiment and the second embodiment is that the pull-up unit 11 and the control unit 15 meet at the node G to form a third transmission path 50a coupled to the gate line G(n), and the pull-down unit 13 is coupled to the gate line G(n) via the third transmission path 50b. The first transmission path 50a, the second transmission path 70 and the third transmission path 50b meet at a node H, and are coupled to the gate line G(n) through the node H.

Please refer to FIG. 1 and FIG. 5 together. FIG. 5 is a schematic diagram of a gate driving circuit according to a sixth embodiment of the present invention. For the similarities between the sixth embodiment and the first embodiment, please refer to the first embodiment, and details will not be repeated in the sixth embodiment. The difference between the sixth embodiment and the first embodiment is that the signal generating module 10 is further coupled to the gate line G(n) via the first transmission path 50a, the fourth transmission path 50c and the fifth transmission path 50d. In the sixth embodiment, the pull-up unit 11 is coupled to the gate line G(n) via the third transmission path 50a, the pull-down unit 13 is coupled to the gate line G(n) via the fourth transmission path 50c, and the control The unit 15 is coupled to the gate line G(n) via the fifth transmission path 50d. For example, the pull-up unit 11 can be coupled to the gate line G(n) via the first transmission path 50 a via the second terminal 115 of the first switch 111 . The pull-down unit 13 can be coupled to the gate line G(n) via the first end 133 of the second switch 131 via the fourth transmission path 50c. The control unit 15 can control the first end of the switch 151 to be coupled to the gate line G(n) via the fifth transmission path 50d. The first ends of the plurality of voltage stabilizing switches 31 and 32 in the voltage stabilizing module 30 are coupled to the gate line G(n) via the second transmission path 70 . Wherein, the first transmission path 50a and the fourth transmission path 50c meet at node I, the second transmission path 70 and the fifth transmission path 50d meet at node J, and node I is connected to node J, and then connected to gate line G (n). Therefore, the aforementioned four transmission paths are connected to the gate line G(n) via the node I and the node J. The remedy method of the display device can further cut off the first transmission path 50a when the pull-up unit 11 is abnormal, cut off the fourth transmission path 50c when the pull-down unit 13 is abnormal, and cut off the fourth transmission path 50c when the control unit 15 is abnormal. , to cut off the fifth transmission path 50d, so that when the display device is remedied, only the abnormal component is removed, and other components that are still operating normally are not removed.

In summary, the display device of the present invention utilizes changing the layout of the gate driving circuit to couple the signal generating module and the voltage stabilizing module to the gate lines through the first transmission path and the second transmission path, respectively. When one of the gate driving circuits on the gate line of the display device of the present invention is abnormal, the first transmission path of the gate driving circuit can be cut off, the abnormal voltage caused by the signal generating module can be removed, and the second transmission path of the gate driving circuit can be reserved. The transmission path uses the voltage stabilizing module of the gate drive circuit to continue to stabilize the voltage level on the gate line. In other embodiments, the present invention can group or individually arrange the pull-up unit, pull-down unit and control unit in the signal generation module on different transmission paths, so that when any circuit is abnormal, the abnormal circuit is cut off and the coupling between the gate lines. Therefore, in the present invention, when the display device is repairing the line defect, the voltage level on the gate line will not be too high due to cutting off the entire abnormal gate driving circuit. According to this, the display device with display abnormality is remedied.

Although the present invention is disclosed by the above-mentioned embodiments, they are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the corresponding changes and modifications should all belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. A display device, characterized in that it comprises a plurality of rows of pixels and a plurality of gate drive circuits, wherein a plurality of pixels in each row of pixels are coupled to a gate line, and the gate line is coupled to At least two of the gate drive circuits, at least one of the gate drive circuits include: A signal generation module, coupled to the gate line through a first transmission path, for outputting at least one gate drive control signal to the pixels, the signal generation module includes a first switch, a second switch and a control switch; as well as A voltage stabilizing module, coupled to the gate line through a second transmission path, when at least one of the first switch, the second switch and the control switch is short-circuited, the gate drive circuits When one of them is abnormal, the first transmission path is cut off and the voltage stabilizing module continues to stabilize the voltage level on the gate line through the second transmission path. 2. The display device according to claim 1, wherein when the conduction path between the first transmission path and the gate line is cut off, the second transmission path is still electrically coupled to the gate line. 3. The display device according to claim 1, wherein the first transmission path and the second transmission path are independent of each other. 4. The display device according to claim 1, wherein the signal generating module comprises: A pull-up unit, including the first switch, a first end of the first switch is coupled to a high potential end, a second end of the first switch is coupled to the gate line through the first transmission path , a control terminal of the first switch is coupled to a first reference signal terminal, and is used to increase the voltage level of the gate line according to a first reference signal; a pull-down unit, including the second switch, a first end of the second switch is coupled to the gate line through the first transmission path, a second end of the second switch is coupled to a low potential end, A control terminal of the second switch is coupled to a second reference signal terminal for pulling down the voltage level of the gate line according to a second reference signal; and A control unit, including the control switch, a first terminal of the control switch is coupled to the gate line through the first transmission path, a control terminal of the control switch is coupled to a scanning signal terminal, and is used to A scanning signal, outputting the gate driving control signal. 5. The display device according to claim 1, wherein the signal generation module is further coupled to the gate line via the first transmission path and a third transmission path, and the signal generation module comprises: A pull-up unit, including the first switch, a first end of the first switch is coupled to a high potential end, a second end of the first switch is coupled to the gate line through the first transmission path , a control terminal of the first switch is coupled to a first reference signal terminal, and is used to increase the voltage level of the gate line according to a first reference signal; a pull-down unit, including the second switch, a first end of the second switch is coupled to the gate line through the third transmission path, a second end of the second switch is coupled to a low potential end, A control terminal of the second switch is coupled to a second reference signal terminal for pulling down the voltage level of the gate line according to a second reference signal; and A control unit, including the control switch, a first terminal of the control switch is coupled to the gate line through the third transmission path, a control terminal of the control switch is coupled to a scanning signal terminal, and is used to A scanning signal, outputting the gate driving control signal. 6. The display device according to claim 1, wherein the signal generating module is further coupled to the gate line via the first transmission path, a fourth transmission path, and a fifth transmission path, and the signal generation module Module contains: A pull-up unit, including the first switch, a first end of the first switch is coupled to a high potential end, a second end of the first switch is coupled to the gate line through the first transmission path , a control terminal of the first switch is coupled to a first reference signal terminal, and is used to increase the voltage level of the gate line according to a first reference signal; a pull-down unit, including the second switch, a first end of the second switch is coupled to the gate line through the fourth transmission path, a second end of the second switch is coupled to a low potential end, A control terminal of the second switch is coupled to a second reference signal terminal for pulling down the voltage level of the gate line according to a second reference signal; and A control unit, including the control switch, a first terminal of the control switch is coupled to the gate line through the fifth transmission path, a control terminal of the control switch is coupled to a scanning signal terminal, and is used to A scanning signal, outputting the gate driving control signal. 7. A remedy method for a display device, characterized in that it is applied to a plurality of gate drive circuits of a display device, one of the gate drive circuits includes a signal generating module and a voltage stabilizing module, wherein The signal generation module outputs at least one gate drive control signal to a plurality of pixels of the display device through a first transmission path, the voltage stabilization module stabilizes the gate drive control signal through a second transmission path, and the signal generates The module includes a first switch, a second switch and a control switch, and the remedial method of the display device includes: judging whether the gate drive circuits coupled to the gate lines are abnormal; When at least one of the first switch, the second switch, and the control switch is short-circuited to cause an abnormality in one of the gate drive circuits coupled to the gate line, the abnormal gate is cut off. the first transmission path of the pole drive circuit; and The gate driving circuit which has cut off the first transmission path stabilizes the voltage level of the gate line via the second transmission path. 8. The remedy method of display device as claimed in claim 7, characterized in that, the signal generating module comprises a pull-up unit, a pull-down unit and a control unit, wherein the pull-up unit, the pull-down unit and the control unit coupled to the gate line via the first transmission path, wherein the step of cutting off the first transmission path of the abnormal gate drive circuit includes: judging whether the pull-up unit, the pull-down unit and the control unit are abnormal; and When one of the pull-up unit, the pull-down unit and the control unit is abnormal, the first transmission path is cut off. 9. The remedy method for a display device according to claim 7, wherein the signal generating module comprises a pull-up unit, a pull-up unit and a control unit, wherein the pull-up unit is coupled via the first transmission path To the gate line, the pull-down unit and the control unit are further coupled to the gate line via a third transmission path, wherein the step of cutting off the first transmission path of the abnormal gate drive circuit includes: : Judging whether the pull-up unit is abnormal; When an abnormality occurs in the pull-up unit, cut off the first transmission path; judging whether one of the pull-down unit and the control unit is abnormal; and When one of the pull-down unit and the control unit is abnormal, the third transmission path is cut off. 10. The remedy method for a display device according to claim 7, wherein the signal generating module comprises a pull-up unit, a pull-up unit and a control unit, wherein the pull-up unit is coupled via the first transmission path To the gate line, the pull-down unit is further coupled to the gate line through a fourth transmission path, and the control unit is further coupled to the gate line through a fifth transmission path, wherein the gate that is abnormal in off In the step of the first transmission path of the pole drive circuit, comprising: Judging whether the pull-up unit is abnormal; When an abnormality occurs in the pull-up unit, cut off the first transmission path; Determine whether the pull-down unit is abnormal; When an abnormality occurs in the pull-down unit, cut off the fourth transmission path; judging whether the control unit is abnormal; and When the control unit is abnormal, the fifth transmission path is cut off.