TWI537916B - Display device and repairing method thereof - Google Patents

Description

Display device and remedy method thereof

The present invention relates to a display device and a remedy thereof, and more particularly to a circuit layout for improving the internal gate drive circuit of a display device to achieve a method of remedying the display device when an abnormality occurs in the gate drive circuit.

Most current display devices use a bilateral drive to drive the column pixels in the display device. The bilateral driving is mainly coupled to a gate driving circuit at both ends of the gate pixel coupled to the row pixel, and the gate driving voltage is generated by the gate driving circuit to drive the column pixels.

However, among the transistors constituting the gate driving circuit, some of the transistors have a large area. During the display device process, some impurities are likely to fall into the transistor, causing a short circuit of the transistor. At this time, the short-circuited transistor causes the gate drive circuit to be abnormal. When the gate driving circuit coupled to one end of the two ends of the gate line is abnormal, the output of the other end gate driving circuit is affected, resulting in a line defect of the display device.

In view of the fact that the gate driving circuit is prone to abnormality, it is necessary to develop a display device for improving the wiring design of the gate driving circuit, so that the display device can improve the wiring through the improved wiring of the gate driving circuit when an abnormality occurs. Line defects, which in turn increase the manufacturing yield of the display device.

The present invention provides a display device that can correct an abnormal gate drive by intercepting a part of the circuit inside the gate drive circuit by changing the circuit layout of the gate drive circuit to cause an abnormality in the gate drive circuit of the display device. The column pixels coupled to the circuit enable the display device to restore normal display effects.

To achieve the above object, a display device and a remedy thereof are provided. The display device has a plurality of column pixels and a plurality of gate driving circuits, wherein a plurality of pixels in each column pixel are coupled to the gate line, and the gate lines are coupled to the at least two gate driving circuits. . At least one of the plurality of gate driving circuits has a signal generating module and a voltage stabilizing module. The signal generating module is coupled to the gate line via the first transmission path for outputting the gate driving control signal to the pixel. The voltage regulator module is coupled to the gate line via the second transmission path for stabilizing the voltage level on the gate line.

A remedy for the display device includes determining if an abnormality has occurred in the gate drive circuit. When an abnormality occurs in the gate driving circuit, the first transmission path of the abnormal side gate driving circuit is cut off, and the second transmission path of the gate driving circuit stabilizes the voltage level of the gate line.

In summary, the gate driving circuit of the display device of the present invention transmits the signal generating module and the voltage stabilizing module via the first transmission path and the second transmission respectively through the line layout of the first transmission path and the second transmission path. The path is coupled to the gate line. By the line layout of the first transmission path and the second transmission path, the display device of the present invention can cut off the gate driving when one of the gate driving circuits on the gate line is abnormal The first transmission path of the circuit removes the voltage abnormality caused by the signal generating module, and retains the second transmission path of the gate driving circuit, and continues to stabilize the voltage level on the gate line by the voltage regulator module of the gate driving circuit. The voltage level on the gate line is not caused by cutting off the entire abnormal gate driving circuit, and the voltage level of the gate line is too high, thereby remedying the column pixels coupled by the abnormal gate driving circuit.

The above description of the disclosure and the following description of the embodiments of the present invention are intended to illustrate and explain the spirit and principles of the invention, and to provide further explanation of the scope of the invention.

10‧‧‧Signal Generation Module

11‧‧‧Upper unit

111‧‧‧First switch

113‧‧‧ first end

115‧‧‧ second end

117‧‧‧Control end

13‧‧‧ Pulldown unit

131‧‧‧Second switch

133‧‧‧ first end

135‧‧‧ second end

137‧‧‧Control end

15‧‧‧Control unit

151‧‧‧Control switch

153‧‧‧ first end

155‧‧‧ second end

157‧‧‧Control end

30‧‧‧voltage regulator

31, 32‧‧ ‧ voltage 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 line

HC‧‧‧high potential

RC1‧‧‧ first reference signal end

RC2‧‧‧second reference signal end

ST‧‧‧ scan signal end

LC1, LC2‧‧‧ voltage signal terminal

VSS‧‧‧low potential

A, B, C, D, E, F, G, H, I, J‧‧‧ nodes

Fig. 1 is a schematic view of a display device drawn in accordance with a first embodiment of the present invention.

Fig. 2 is a schematic view showing a gate driving circuit drawn in accordance with a first embodiment of the present invention.

Figure 3 is a flow chart showing a remedy of a display device according to a first embodiment of the present invention.

Fig. 4A is a schematic view of a gate driving circuit drawn in accordance with a second embodiment of the present invention.

Fig. 4B is a schematic diagram of a gate driving circuit drawn in accordance with a third embodiment of the present invention.

Fig. 4C is a schematic diagram of a gate driving circuit drawn in accordance with a fourth embodiment of the present invention.

4D is a schematic diagram of a gate driving circuit drawn in accordance with a fifth embodiment of the present invention.

Fig. 5 is a schematic view showing a gate driving circuit drawn in accordance with a sixth embodiment of the present invention.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

Referring to FIG. 1 to FIG. 3 together, FIG. 1 is a schematic diagram of a display device according to a first embodiment of the present invention, and FIG. 2 is a gate drive according to a first embodiment of the present invention. A schematic diagram of a circuit, and FIG. 3 is a flow chart of a method for remedying a display device according to a first embodiment of the present invention. As shown, the display device of the present invention has a plurality of row pixels PXr1, PXr2. .., PXrn and multiple gate drive circuits GOA1, GOA2, ..., GOAn. Each of the column pixels PXr1, PXr2, ..., PXrn has a plurality of pixels PX, and the pixels PX of each of the column pixels PXr1, PXr2, ..., PXrn are respectively coupled to the gate line G. (1), G(2), ..., G(n). For example, the gate line G(n) is coupled to at least two gate driving circuits GOAn. For example, the two ends of the gate line G(n) are respectively coupled to one gate. The drive circuit GOAn or more gate drive circuits GOAn. Yu Shishi In the embodiment, the pixels PX can also be respectively coupled to other circuits, such as a source driving circuit (not shown), a gate compensation circuit (not shown), or the like for driving or transmitting data signals to pixels. PX circuit. Other circuits in which the pixel PX is coupled are related to the related art and are well known to those skilled in the art, and thus will not be described.

In this embodiment, the gate driving circuits GOA1, GOA2, ..., GOAn coupled to G(1), G(2), ..., G(n) have a signal generating module 10 and a voltage stabilizing mode. Group 30. 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) via the first transmission path 50 for outputting the gate driving control signal to the drawing. Prime PX. The voltage regulator 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 can include a pull-up unit 11, a pull-down unit 13, and a control unit 15. In the embodiment shown in FIG. 1 , the pull-up unit 11 can have a first switch 111 , the first end 113 of the first switch 111 is coupled to the high-potential terminal HC, and the second end 115 is coupled to the first transmission path 50. The gate terminal G(n) is coupled to the gate line G(n), and the control terminal 117 receives the first reference signal RC1 to raise the voltage level of the gate line G(n). For example, if the first switch 111 is an N-type transistor, when the control terminal 117 receives the first reference signal RC1 of the high voltage level, the first switch 111 is turned on, and the first switch 111 turns the gate line G(n). The voltage level is raised to the voltage level of the high potential terminal HC.

The pull-down unit 13 can 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, and the second end 135 is coupled to the low-potential terminal VSS. The terminal 137 is coupled to the second reference signal terminal for receiving the second reference signal RC2 according to the voltage level of the gate line G(n). The first end 133 of the second switch 131 is also connected to the second end 115 of the first switch 111. In the 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 the high voltage level, the second switch 131 is turned on, the gate The voltage level of 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 controlled by the first reference signal RC1 and the second reference signal RC2, respectively, 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 can have a control switch 151 that is coupled to the gate line G(n) via the first transmission path 50. In other words, the first end 153 of the control switch 151 is connected to the second end 115 of the first switch 111, the first end 133 of the second switch 131, and the voltage regulator 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 for outputting the gate drive control signal to the other gate drive circuit according to the scan signal, for example, the second end 155 of the control switch 151 is coupled to the gate. The driving circuit GOAn+2 provides a first reference signal of the gate driving circuit GOAn+2.

The voltage regulator module 30 can have a plurality of voltage regulator switches, such as the voltage regulator switches 31, 32 shown in FIG. The first end of the voltage regulator switch 31 is coupled to the gate line G(n) via the second transmission path 70, and the second end of the voltage regulator switch 31 is coupled to the low potential terminal VSS. The second end of the voltage regulator switch 31 is also connected to the second end 135 of the second switch 131. The voltage regulator switch 31 is coupled to the voltage regulator signal terminal LC1, According to the voltage stabilization signal, the voltage level on the gate line G(n) is stabilized. The first end of the voltage regulator switch 32 is coupled to the gate line G(n) via the second transmission path 70, and the second end of the voltage regulator switch 32 is coupled to the low potential terminal VSS. The second end of the voltage regulator switch 32 is also connected to the second end 135 of the second switch 131 and the second end of the voltage regulator switch 31. The voltage regulator switch 32 is coupled to the voltage regulator signal terminal LC2 for stabilizing the voltage level on the gate line G(n) according to the voltage stabilization signal. In this embodiment, the voltage regulator switch 31 and the voltage regulator switch 32 can stabilize the voltage level on the gate line G(n) according to the voltage stabilization signals of the voltage regulation terminal LC1 and the voltage regulation terminal LC2, respectively. It is not intended to limit the embodiment. In other embodiments, the voltage regulator switch 31 and the voltage regulator switch 32 can also stabilize the voltage level on the gate line G(n) according to the voltage stabilization signal of the same voltage regulator signal terminal.

In practice, due to components in the gate drive circuit GOAn, such as the first switch 111, the second switch 131, the control switch 151, and the voltage regulator switches 31, 32, the components constituting the signal generating module 10, such as the first The switch 111, the second switch 131, and the control switch 151 are easy to drop impurities in the process because of the large volume of the components, so that the first switch 111, the second switch 131 or the control switch 151 is short-circuited, so that the gate drive circuit The GOAn is abnormal, and the correct gate drive control signal cannot be output to drive the column pixels PXrn, causing line defects of the display device, and the gray lines are displayed on the display device. 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 driving 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 regulator module 30 is removed. The voltage level on the gate line G(n) is stabilized via the second transmission path 70.

In a practical example, when the gate drive circuit GOAn is normal, the voltage level on the gate line G(n) is about 16.6V. When a line defect (loss) of gray scale abnormality appears on the display device, the gate driving circuit GOAn indicating that the column pixel is coupled may be abnormal. At this time, the first transmission path 50 of the gate driving circuit GOAn of the column pixel can be cut off by laser cutting. After the first transmission path 50 is cut off, the voltage regulator module 30 is still coupled to the voltage level on the gate line G(n) of the gate line G(n) via the second transmission path 70, and thus the gate line G ( The voltage level on n) is about 16.8V, which is similar to the voltage level of the gate drive circuit GOAn at about 16.6V during normal operation, thereby remedying the problem of line defects in the display device. Through the structure described in this embodiment, when the display device performs the remediation of the line defect, the voltage level on the gate line does not cause the voltage of the gate line due to the interruption of the entire abnormal gate driving circuit. The level is too high, so that the abnormal display device can operate normally.

In order to explain the remedy of the display device of the present invention, the flow of the steps of the first embodiment will be described below. In step S20, it is determined whether or not an abnormality occurs in the gate driving circuit GOAn to which the gate line G(n) is coupled. A method for judging whether an abnormality occurs, such as observing whether there is a line defect on the display device where a gray scale abnormality occurs, determining whether the voltage level on the gate line G(n) is a voltage level that is normally driven, or other appropriate manner . When an abnormality occurs in the gate driving circuit GOAn to which the gate line G(n) is coupled, in step S22, the first transmission path 50 of the abnormal gate driving circuit GOAn is cut off. In practice, the first transmission path 50 can be cut by laser cutting or other suitable means. In step S24, the gate of the first transmission path 50 has been cut off The drive circuit GOAn stabilizes the voltage level of the gate line G(n) via the second transmission path 70. In other words, the gate driving circuit GOAn that cuts off the first transmission path 50 can continue to stabilize the voltage level on the gate line G(n) via the second transmission path 70 by the voltage regulator module 30, thereby avoiding the gate line G ( The voltage level of n) is suddenly increased, and the line defect of the display device cannot be improved.

In a variant embodiment of the invention, the first transmission path may further have a truncation area. When an abnormality occurs in the gate driving circuit GOAn, the cut-off area on the first transmission path is cut off by laser cutting, thereby remedying the display device.

Please refer to FIG. 1 and FIG. 4A to FIG. 4D together. FIG. 4A is a schematic diagram of a gate driving circuit according to a second embodiment of the present invention, and FIG. 4B is a third embodiment according to the present invention. A schematic diagram of the gate drive circuit drawn, and FIG. 4C is a schematic diagram of the gate drive circuit drawn in accordance with the fourth embodiment of the present invention. 4D is a schematic diagram of a gate driving circuit drawn in accordance with a fifth embodiment of the present invention. The embodiment shown in FIGS. 4A to 4D is the same as the first embodiment, please refer to the first embodiment, and it goes without saying. As shown in FIG. 4A, the second embodiment is different from the first embodiment in that the signal generating module 10 is further coupled to the gate line G(n) via the first transmission path 50a and the third transmission path 50b. 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 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 50a at the second end 115 of the first switch 111. The pull down unit 13 can be second The first end 133 of the switch 131 is coupled to the gate line G(n) via the third transmission path 50b. The control unit 15 can control the first end 153 of the switch 151 to be coupled to the gate line G(n) via the third transmission path 50b. The first end 133 of the second switch 131 and the first end 153 of the control switch 151 are coupled to the node A, and the third transmission path 50b is coupled to the gate line G(n). The first ends of the plurality of voltage regulators 31 and 32 in the voltage regulator 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 one 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 line-up abnormality of the pull-up unit 11 is abnormal, and cut off the third transmission path when an abnormality occurs in one of the pull-down unit 13 and the control unit 15 50b. In this embodiment, the first transmission path 50a, the second transmission path 70, and the third transmission path 50b are combined with one node B, which is not used to limit the embodiment of the 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, D, respectively, as shown in FIG. 4B.

In the practical application, the pull-up unit 11 and the pull-down unit 13 may be coupled to the gate line G(n) via the third transmission path 50a, as in the fourth embodiment shown in FIG. 4C. The fourth embodiment is different from the second embodiment in that the second end 115 of the first switch 111 and the first end 133 of the second switch 131 meet the node E, and the first transmission path 50a is coupled to the gate line. G(n). The first end 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 the node F, The gate line G(n) is coupled by the node F. In another embodiment, as shown in FIG. 4D, the fifth embodiment is different from the second embodiment in that the pull-up unit 11 and the control unit 15 are coupled to the node G, and the third transmission path 50a is coupled to the gate. The 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 with the node H, and the node H is coupled to the gate line G(n).

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. The sixth embodiment is the same as the first embodiment, please refer to the first embodiment, and the third embodiment is not to be used. The third embodiment is different from the first embodiment in 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, and the pull-down unit 13 is coupled to the gate line G(n) via the fourth transmission path 50c, and is controlled. 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 50a at 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 fourth transmission path 50c at the first end 133 of the second switch 131. 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 regulators 31 and 32 in the voltage regulator module 30 are coupled to the gate line G(n) via the second transmission path 70. The first transmission path 50a and the fourth transmission path 50c meet the node I, the second transmission path 70 and the fifth transmission path 50d meet the node J, and the node 1 is connected to the node J, and then Connect to the 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 may further cut off the first transmission path 50a when an abnormality occurs in the pull-up unit 11, and cut off the fourth transmission path 50c when the output unit of the pull-down unit 13 is abnormal, and an abnormality occurs in the control unit 15 At this time, the fifth transmission path 50d is cut off, so that when the display device is remediated, only the components in which the abnormality occurs are removed, and the components that are still functioning normally are not removed.

In summary, the display device of the present invention couples the signal generating module and the voltage stabilizing module to the gate line via the first transmission path and the second transmission path, respectively, by changing the layout in the gate driving circuit. When the display device of the present invention is abnormal in one of the gate driving circuits on the gate line, the first transmission path of the gate driving circuit can be cut off, the voltage abnormality caused by the signal generating module is removed, and the second gate driving circuit is retained. The transmission path continues to stabilize the voltage level on the gate line with the voltage regulator module of the gate drive circuit. In other embodiments, the pull-up unit, the pull-down unit, and the control unit in the signal generating module may be grouped or individually set on different transmission paths, thereby interrupting an abnormality when an abnormality occurs in any one of the circuits. The coupling between the circuit and the gate line. Therefore, in the present invention, when the display device performs the remediation of the line defect, the voltage level on the gate line does not cause the voltage level of the gate line to be too high due to the interruption of the entire abnormal gate driving circuit. According to this, the display device having the display abnormality is remedied.

Although the present invention has been disclosed above in the above embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Regarding the protection scope defined by the present invention Please refer to the attached patent application scope.

10‧‧‧Signal Generation Module

11‧‧‧Upper unit

111‧‧‧First switch

113‧‧‧ first end

115‧‧‧ second end

117‧‧‧Control end

13‧‧‧ Pulldown unit

131‧‧‧Second switch

133‧‧‧ first end

135‧‧‧ second end

137‧‧‧Control end

15‧‧‧Control unit

151‧‧‧Control switch

153‧‧‧ first end

155‧‧‧ second end

157‧‧‧Control end

30‧‧‧voltage regulator

31, 32‧‧ ‧ voltage switch

50‧‧‧First transmission path

70‧‧‧second transmission path

GOAn‧‧‧ gate drive circuit

G(n)‧‧‧ gate line

HC‧‧‧high potential

RC1‧‧‧ first reference signal end

RC2‧‧‧second reference signal end

ST‧‧‧ scan signal end

LC1, LC2‧‧‧ voltage signal terminal

VSS‧‧‧low potential

Claims (9)

A display device includes a plurality of column pixels and a plurality of gate driving circuits, wherein a plurality of pixels in each of the columns of pixels are coupled to a gate line, and the gate lines are coupled to the gates At least two of the driving circuits, at least one of the gate driving circuits includes: a signal generating module coupled to the gate line via a first transmission path for outputting at least one gate driving control signal to the And a voltage stabilizing module coupled to the gate line via a second transmission path for stabilizing a voltage level on the gate line; wherein when the first transmission path and the gate line are cut off The second transmission path is still electrically coupled to the gate line when the path is turned on. The display device of claim 1, wherein the first transmission path and the second transmission path are independent of each other. The display device of claim 1, wherein the signal generating module comprises: a pull-up unit, comprising a first switch, a first end of the first switch coupled to a high potential end, the first switch A second end is coupled to the gate line via the first transmission path, and a control end of the first switch is coupled to a first reference signal end for boosting the gate line according to a first reference signal a voltage level; a pull-down unit includes a second switch, a first end of the second switch is coupled to the gate line via the first transmission path, and a second end of the second switch is coupled to the second terminal a low potential end, a control end of the second switch is coupled to a second parameter The test signal end is configured to pull down the voltage level of the gate line according to a second reference signal; and a control unit includes a control switch, a first end of the control switch is coupled to the first transmission path via the first transmission path The gate end of the control switch is coupled to a scan signal terminal for outputting the gate drive control signal according to a scan signal. The display device of claim 1, wherein the signal generating module is coupled to the gate line via the first transmission path and a third transmission path, the signal generating module comprising: a pull-up unit, including a first switch, a first end of the first switch is coupled to a high potential end, and a second end of the first switch is coupled to the gate line via the first transmission path, and the first switch The control terminal is coupled to a first reference signal terminal for boosting the voltage level of the gate line according to a first reference signal; the pull-down unit includes a second switch, and the first end of the second switch The second end of the second switch is coupled to a low potential end, and the second end of the second switch is coupled to a second reference signal end. Depressing a voltage level of the gate line according to a second reference signal; and a control unit comprising a control switch, wherein a first end of the control switch is coupled to the gate line via the third transmission path, A control end of the control switch is coupled to a scan signal end for Output the gate according to a scan signal Drive control signals. The display device of claim 1, wherein the signal generating module is coupled to the gate line via the first transmission path, the fourth transmission path and a fifth transmission path, the signal generation module comprising: a pull-up unit includes a first switch, a first end of the first switch is coupled to a high-potential end, and a second end of the first switch is coupled to the gate line via the first transmission path. A control terminal of the first switch is coupled to a first reference signal terminal for boosting a voltage level of the gate line according to a first reference signal; and a pull-down unit includes a second switch, the second a first end of the switch is coupled to the gate line via the fourth transmission path, a second end of the second switch is coupled to a low potential end, and a control end of the second switch is coupled to a second a reference signal terminal for pulling down a voltage level of the gate line according to a second reference signal; and a control unit comprising a control switch, a first end of the control switch coupled to the fifth transmission path via the fifth transmission path The gate line, a control end of the control switch is coupled to a sweep The tracing end is used to output the gate drive control signal according to a scan signal. A remedy for a display device is applied to a plurality of gate driving circuits of a display device. One of the gate driving circuits includes a signal generating module and a voltage stabilizing module, wherein the signal generating module Outputting at least one gate driving control signal to the plurality of paintings of the display device via a first transmission path The voltage regulator module stabilizes the gate drive control signal via a second transmission path, and the remedy method of the display device includes: determining whether the gate drive circuits coupled to the gate line are abnormal; When the abnormality of one of the gate driving circuits coupled to the gate line is abnormal, the first transmission path of the gate driving circuit that is abnormal is intercepted; and the gate driving circuit that has cut off the first transmission path The voltage level of the gate line is stabilized via the second transmission path. The remedy method of the display device of claim 6, wherein 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 are The transmitting path is coupled to the gate line, wherein the step of cutting off the first transmission path of the gate driving circuit that is abnormal includes: determining whether the pull-up unit, the pull-down unit, and the control unit are abnormal; And when the abnormality occurs in one of the pull-up unit, the pull-down unit, and the control unit, the first transmission path is cut off. The remedy of the display device of claim 6, wherein the signal generating module comprises a pull-up unit, a pull-down unit and a control unit, wherein the pull-up unit is coupled to the gate via the first transmission path a 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 gate driving circuit in which an abnormality occurs The method includes: determining whether the pull-up unit is abnormal; when the pull-up unit is abnormal, intercepting the first transmission path; determining whether one of the pull-down unit and the control unit is abnormal; and when the pull-down unit and When one of the control units is abnormal, the third transmission path is truncated. The remedy of the display device of claim 6, wherein the signal generating module comprises a pull-up unit, a pull-down unit and a control unit, wherein the pull-up unit is coupled to the gate via the first transmission path The pull-down unit is further coupled to the gate line via a fourth transmission path, and the control unit is further coupled to the gate line via a fifth transmission path, wherein the gate drive circuit of the abnormality is intercepted The step of the first transmission path includes: determining whether the pull-up unit has an abnormality; when the pull-up unit is abnormal, intercepting the first transmission path; determining whether the pull-down unit has an abnormality; when the pull-down unit is abnormal And intercepting the fourth transmission path; determining whether the control unit has an abnormality; and when the control unit is abnormal, truncating the fifth transmission path.