CN104485078A - Gate drive circuit, display panel and display device - Google Patents

Abstract

The present invention provides a gate drive circuit, a display panel and a display device, which are used to provide each level conversion circuit module with a gate drive signal corresponding to the level conversion circuit module through an additional voltage regulation network module, thereby Avoid the difference in TFT characteristics caused by process fluctuations, and improve the phenomenon of dark and bright lines on the display panel. The gate drive circuit includes a voltage generation circuit module, a voltage regulation network module, and at least two level conversion circuit modules; the voltage regulation network module is specifically used to: receive the gate drive signal generated by the voltage generation circuit module; Set the code to adjust the voltage of the received gate drive signal to obtain the gate drive signal corresponding to each level shifting circuit module, wherein the code is set for each of the level shifting circuit modules; The gate drive signal corresponding to each level conversion circuit module is sent to the level conversion circuit module respectively.

Description

Gate driving circuit, display panel and display device

technical field

The present invention relates to the field of display technology, in particular to a gate drive circuit, a display panel and a display device.

Background technique

A traditional liquid crystal display panel includes a timing controller chip T-CON, a source driver chip Source IC and a gate driver chip Gate IC. The T-CON chip provides the start signal STV, the clock signal CPV or the output enable signal OE for the gate driver chip to generate the voltage for turning on or off the thin film transistor, and at the same time, provides the source driver chip with the data signal DATA, The clock signal CLK, the loading signal LOAD or the polarity signal POL are used to generate a charging signal loaded on a thin film transistor (Thin Film Transistor, TFT). The driving architecture of the liquid crystal panel is as shown in FIG. 1 .

However, as the non-display area of the display panel is designed to be narrower and narrower, the traditional driving architecture of the liquid crystal display panel cannot meet the demand. Due to the GIP (Gate In Panel, in-plane gate) technology, the gate drive circuit Source Driver of the liquid crystal panel is integrated on the array substrate to generate a high-voltage GIP signal (High Voltage GIP Signal, HV GIP Signal), and the high-voltage GIP signal Send it to the GIP circuit GIP Circuit, and then the GIP circuit generates the gate drive signal to scan and drive the LCD panel. Therefore, compared with the traditional LCD panel drive technology, it not only saves the welding of the gate drive circuit (bonding) Area and fan-out (fan-out) wiring space, and realize the design of narrow frame. The driving architecture of the liquid crystal panel applying the GIP technology is described in FIG. 2 .

The GIP display panel integrates the timing controller T-CON chip, source driver chip and gate driver chip in the traditional display panel into the gate driver circuit. The circuit structure of the gate driver circuit under this single chip solution is shown in the figure 3 shown. First, the voltage generating circuit module 301 (Voltage Gate High\Voltage Gate Low Generate Circuit, VGH/VGL Generate Circuit) generates a high voltage signal (Voltage Gate High, VGH) or a low voltage signal (Voltage Gate Low, VGL), and simultaneously VGH\VGL Supply the level conversion circuit module 302 (LevelShift Circuit) distributed at both ends of the single chip, and the level conversion circuit module will generate a high-voltage GIP signal. Wherein, the gate drive circuit further includes a timing controller chip T-CON 303. At present, the gate drive circuit of GIP technology mostly adopts bilateral 4phase or 8phase, or even 16phase CLK drive technology. Since the GIP technology has high requirements on the manufacturing process of the display panel, that is, the GIP circuits on both sides of the display panel need to control all the thin film transistors to be turned on at the same time. However, the process of cutting small and medium-sized panels using the existing technology fluctuates greatly, and the output voltages of the thin film transistors that are turned on or off by the GIP circuits on both sides of the display panel are different, resulting in the display problem of horizontal bright and dark lines H-Line on the display panel.

In summary, due to the large fluctuations in the process of the prior art, the output voltages of the thin film transistors that are turned on or off by the GIP circuits on both sides of the display panel are different, resulting in different turn-on times of the TFTs of the GIP units on both sides of the display panel, that is, The display brightness of the TFT is different, so that the display panel produces horizontal bright and dark lines.

Contents of the invention

Embodiments of the present invention provide a gate drive circuit, a display panel, and a display device, which are used to provide each level conversion circuit module with a gate drive signal corresponding to the level conversion circuit module through an additional voltage regulation network module , so as to avoid the difference in TFT characteristics caused by process fluctuations, and improve the phenomenon of dark and bright lines on the display panel.

A gate drive circuit provided by an embodiment of the present invention includes a voltage generation circuit module and at least two level conversion circuit modules, and also includes: a voltage regulation network module;

The input terminal of the voltage regulation network module is connected to the output terminal of the voltage generation circuit module, and each output terminal of the voltage regulation network module is connected to the input terminal of the level conversion circuit module corresponding to the output terminal one by one. ;

The voltage regulating network module is specifically used for:

receiving a gate drive signal generated by the voltage generating circuit module;

According to the preset code for adjusting the voltage of the gate drive signal, the voltage of the received gate drive signal is adjusted to obtain the gate drive signal corresponding to each of the level conversion circuit modules, wherein the code set for each of the level conversion circuit modules;

The gate drive signal corresponding to each level conversion circuit module is sent to the level conversion circuit module respectively.

Through the voltage regulation network module added in the gate drive circuit, the gate drive signal corresponding to the level conversion circuit module is provided for each level conversion circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations and improving the display panel. Produce dark and bright lines, and even avoid dark and bright lines on the display panel.

Preferably, the number of the level shifting circuit modules is two, which are respectively the first level shifting circuit module and the second level shifting circuit module; the voltage regulating network module includes: Low voltage drop output circuit module and voltage regulation circuit module;

Wherein, the input end of the low dropout output circuit module is connected to the output end of the voltage generation circuit module; the output end of the low dropout output circuit module is connected to the first input end of the voltage regulation circuit module; The first output terminal of the voltage regulation circuit module is connected to the input terminal of the first level conversion circuit module, and the second output terminal of the voltage regulation circuit module is connected to the input terminal of the second level conversion circuit module;

The voltage regulating circuit module is specifically used for:

receiving the gate drive signal sent by the low dropout output circuit module;

According to the preset first code for adjusting the voltage of the gate drive signal corresponding to the first level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the first gate drive signal, wherein the The first code is set for the first level conversion circuit module;

According to the preset second code for adjusting the voltage of the gate drive signal corresponding to the second level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the second gate drive signal, wherein the The second code is set for the second level conversion circuit module;

sending the first gate driving signal to the first level conversion circuit module, and sending the second gate driving signal to the second level conversion circuit module.

Preferably, the number of the level shifting circuit modules is two, which are respectively the first level shifting circuit module and the second level shifting circuit module; the voltage regulating network module includes: a first voltage regulating circuit module and a second voltage regulating circuit module;

Wherein, the input terminal of the first voltage regulating circuit module and the input terminal of the second voltage regulating circuit module are respectively connected to the output terminal of the voltage generating circuit module;

The output terminal of the first voltage regulation circuit module is connected to the input terminal of the first level conversion circuit module, and the output terminal of the second voltage regulation circuit module is connected to the input terminal of the second level conversion circuit module;

The first voltage regulation circuit module is specifically used for:

receiving a gate drive signal generated by the voltage generating circuit module;

According to the preset first code for adjusting the voltage of the gate drive signal corresponding to the first level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the first gate drive signal, wherein the The first code is set for the first level conversion circuit module;

sending the first gate drive signal to a first level conversion circuit module;

The second voltage regulation circuit module is specifically used for:

receiving a gate drive signal generated by the voltage generating circuit module;

According to the preset second code for adjusting the voltage of the gate drive signal corresponding to the second level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the second gate drive signal, wherein the The second code is set for the second level conversion circuit module;

sending the second gate drive signal to a second level conversion circuit module.

Preferably, the voltage regulation circuit module includes: a selection unit for selecting resistors with different resistance values and at least two different resistors.

A display panel provided by an embodiment of the present invention includes the above-mentioned gate drive circuit and at least two in-plane gate circuit modules, wherein the input end of each in-plane gate circuit module is connected to the in-plane gate circuit module. The level conversion circuit modules in the gate drive circuit corresponding to the circuit modules are connected.

Through the gate drive circuit in the display panel, each level conversion circuit module is provided with a gate drive signal corresponding to the level conversion circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations, and improving the display panel to produce dark and bright line phenomenon, and even avoid dark and bright lines on the display panel.

Preferably, the number of the level shifting circuit modules is two, which are respectively the first level shifting circuit module and the second level shifting circuit module; the number of the in-plane gate circuit modules is two , are respectively the first in-plane gate circuit module and the second in-plane gate circuit module;

Wherein, the output terminal of the first level conversion circuit module is connected to the input terminal of the first in-plane gate circuit module, and the output terminal of the second level conversion circuit module is connected to the second in-plane gate circuit module. The input terminal of the pole circuit module is connected;

The first in-plane gate circuit module is specifically used for:

receiving a first gate drive signal sent by the first level conversion circuit module;

driving the thin film transistor corresponding to the first in-plane gate circuit module according to the first gate driving signal;

The second in-plane gate circuit module is specifically used for:

receiving a second gate drive signal sent by the second level conversion circuit module;

The thin film transistor corresponding to the second in-plane gate circuit module is driven according to the second gate driving signal.

A display device provided by an embodiment of the present invention includes the above-mentioned display panel.

Through the display panel in the display device, each level conversion circuit module is provided with a gate drive signal corresponding to the level conversion circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations and improving the phenomenon of dark and bright lines on the display panel. , and even avoid dark and bright lines on the display panel.

Description of drawings

FIG. 1 is a structural schematic diagram of an existing traditional LCD panel driving architecture;

FIG. 2 is a structural schematic diagram of a driving architecture of an existing GIP liquid crystal display panel;

3 is a schematic structural diagram of a gate drive circuit in a GIP under an existing single-chip solution;

FIG. 4 is a schematic structural diagram of a gate drive circuit provided by the present invention;

FIG. 5 is a schematic flowchart of a method for gate driving of a voltage regulation network module provided by the present invention;

Fig. 6a is a schematic diagram of the corresponding relationship between the preset voltage difference, the target current and the code;

FIG. 6b is a schematic diagram of the corresponding relationship between the preset voltage difference, the target current and the resistance value;

FIG. 7 is a schematic structural diagram of a gate drive circuit provided by Embodiment 1 of the present invention;

8 is a schematic flowchart of a method for driving a gate of a voltage regulation circuit module according to Embodiment 1 of the present invention;

FIG. 9 is a schematic structural diagram of a gate drive circuit provided in Embodiment 2 of the present invention;

FIG. 10 is a schematic flowchart of a method for driving a gate of a first voltage regulating circuit module according to Embodiment 2 of the present invention.

Detailed ways

The present invention provides a gate drive circuit, a display panel and a display device, which are used to provide each level conversion circuit module with a gate drive signal corresponding to the level conversion circuit module through an additional voltage regulation network module, thereby By avoiding the difference in TFT characteristics caused by process fluctuations, the display brightness of TFTs is the same, the phenomenon of dark and bright lines on the display panel is improved, and even the phenomenon of dark and bright lines on the display panel is avoided.

Referring to FIG. 4, the present invention provides a gate drive circuit, including a voltage generation circuit module 401, a voltage regulation network module 402, and at least two level conversion circuit modules 403;

The input terminal of the voltage regulation network module 402 is connected to the output terminal of the voltage generation circuit module 401, and each output terminal of the voltage regulation network module 402 is respectively corresponding to the level conversion circuit module 403 of the output terminal one by one. connected to the input.

Referring to FIG. 5, the present invention provides a method for voltage regulating the gate drive of the network module 402, the method comprising:

S501. Receive a gate drive signal generated by the voltage generating circuit module;

S502. According to the preset code for adjusting the voltage of the gate drive signal, adjust the voltage of the received gate drive signal to obtain the gate drive signal corresponding to each of the level conversion circuit modules, wherein the Said code is set for each said level conversion circuit module;

S503. Send the gate driving signal corresponding to each level shifting circuit module to the level shifting circuit module respectively.

An embodiment of the present invention provides a display panel, including the above-mentioned gate drive circuit and at least two gate-in-plane (GIP for short) circuit modules, wherein the input end of each GIP circuit module is connected to the GIP circuit The level conversion circuit modules in the gate drive circuit corresponding to the modules are connected.

Through the gate drive circuit in the display panel, each level conversion circuit module is provided with a gate drive signal corresponding to the level conversion circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations and realizing the display brightness of the TFT Similarly, the phenomenon of dark and bright lines on the display panel can be improved, and even the phenomenon of dark and bright lines on the display panel can be avoided.

Specifically, the number of the level shifting circuit modules is two, which are the first level shifting circuit module and the second level shifting circuit module; the number of the GIP circuit modules is two, respectively a GIP circuit module and a second GIP circuit module;

Wherein, the output end of the first level conversion circuit module is connected to the input end of the first GIP circuit module, the output end of the second level conversion circuit module is connected to the input end of the second GIP circuit module connected;

The GIP circuit module is specifically used for:

receiving a gate drive signal sent by the level conversion circuit module connected to the GIP circuit module;

The thin film transistor corresponding to the GIP circuit module is driven by the received gate driving signal.

Specifically, the preset code is determined according to the value of the target current and the voltage difference between the voltage of the gate drive signal generated by the voltage generating circuit module in the gate drive circuit and the target voltage, that is to say, FIG. 6a and FIG. 6b The voltage generation circuit module in the gate drive circuit is shown as a table of the correspondence relationship between the voltage difference of the gate drive signal and the target voltage, the target current, the adjusted resistance value and the code.

For example, when the preset voltage difference is 0.5 volts and the unilateral target current is 0.2 mA, the sending code "00" can be determined according to Figure 6a, and the voltage generation in the gate drive circuit provided by the present invention can be realized The voltage of the voltage signal generated by the circuit module 401 is reduced by 0.5 volts, and the current through the voltage regulation network module 402 is guaranteed to be 0.2 mA; when the preset voltage difference is 1.0 volts and the unilateral target current is 1.0 mA, The transmission code "11" can be determined according to Figure 6a, which can reduce the voltage of the voltage signal generated by the voltage generation circuit module 401 in the gate drive circuit provided by the present invention by 1.0 volts, and ensure that the voltage of the network module 402 is adjusted by the voltage. current is 1.0mA.

For another example, when the preset voltage difference is 0.5 volts and the unilateral target current is 0.2 milliamperes, the sending code "00" can be determined according to Figure 6b, and the corresponding chip with an internal resistance of 2.5 ohm can be selected; when the preset When the voltage difference is 1.0 volts and the target current on one side is 1.0 mA, the code "11" can be sent according to Figure 6b, and the corresponding chip with an internal resistance of 1.0 ohm can be selected.

Wherein, the voltage of the gate drive signal generated by the voltage generation circuit module in the gate drive circuit is adjusted to the target voltage mainly through the following two methods:

One is manual adjustment, that is, to obtain the VGH voltage value, so the VGH voltage value and the target voltage value are known; then by simulating the unilateral current value, select the corresponding initial resistance, and manually measure the output voltage of the output terminal; then according to the measured VGHL/VGHR, increase or decrease the resistance value to get the target voltage.

The second is automatic adjustment, that is, to obtain the VGH voltage value, so the VGH voltage value and the target voltage value are known; then by simulating the unilateral current value, select the corresponding initial resistance, and add an analog-to-digital conversion circuit (Analog to Digital Converter, ADC), which can automatically collect the voltage value of VGHL/VGHR. If it is lower than the required value, turn down the middle resistance; if it is higher than the required value, turn up the middle resistance. The adjustment of the resistance value of the resistance is realized by sending codes from the system processor. Since the adjustment principle of VGL is similar to that of VGH, it will not be repeated here.

The test issued by the system processor determines the code for adjusting the voltage of the gate driving signal corresponding to each GIP circuit in the display panel, and the code is fixed in the voltage adjustment network module.

Specifically, the system processor can be connected to the display panel through a system main interface, wherein the system main interface includes: Mobile Industry Processor Interface (Mobile Industry Processor Interface, MIPI).

Specifically, the system processor may be a main processor chip.

A display device provided by the present invention includes the above-mentioned display panel. The display device can be: liquid crystal panel, electronic paper, organic light-emitting diode (Organic Light-Emitting Diode, OLED) panel, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc. products or components.

In order to better introduce the specific functions of the voltage regulation network module, the present invention will be explained below in conjunction with the drawings and embodiments.

Referring to FIG. 7 , Embodiment 1 of the present invention provides a gate drive circuit, including a voltage generation circuit module 401 , a level conversion circuit module, and a voltage regulation network module. Wherein, the number of level shifting circuit modules is two, which are respectively the first level shifting circuit module 703 and the second level shifting circuit module 704; the voltage regulation network module includes: a low-voltage circuit module for reducing the voltage of the voltage signal A low drop output (Low Drop Output, LDO) circuit module 701 and a voltage regulation circuit module 702.

The input end of the LDO circuit module 701 is connected to the output end of the voltage generation circuit module 401, and the output end of the LDO circuit module 701 is connected to the first input end of the voltage regulation circuit module 702;

The first output terminal of the voltage regulation circuit module 702 is connected to the input terminal of the first level conversion circuit module 703 , and the second output terminal of the voltage regulation circuit module 702 is connected to the input terminal of the second level conversion circuit module 704 .

Specifically, the voltage regulation circuit module 702 includes: a selection unit for selecting resistors with different resistance values and at least two different resistors.

Specifically, the voltage regulation circuit module 702 may be a current control circuit for voltage division.

The voltage adjustment circuit module uses the preset code to adjust the received gate drive signal respectively to obtain the first gate drive signal set for the first level conversion circuit module, and the first gate drive signal set for the second level conversion circuit module. The second gate drive signal, and the first gate drive signal is sent to the first level conversion circuit module, and the second gate drive signal is sent to the second level conversion circuit module to realize different level conversions The circuit modules respectively input gate drive signals of different voltages, and provide each level conversion circuit module with the gate drive signal corresponding to the level conversion circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations and realizing the display of TFT The brightness is the same, improving the phenomenon of dark and bright lines on the display panel, and even avoiding the phenomenon of dark and bright lines on the display panel.

Referring to FIG. 8 , the method for driving the gate of the voltage regulation circuit module 702 provided by Embodiment 1 of the present invention includes the following steps:

S801. Receive a gate drive signal sent by the LDO circuit module;

S802. According to the preset first code for adjusting the voltage of the gate drive signal corresponding to the first level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the first gate drive signal, wherein , the first code is set for the first level conversion circuit module; according to the preset second code for adjusting the voltage of the gate drive signal corresponding to the second level conversion circuit module, adjust the received the voltage of the gate drive signal to obtain a second gate drive signal, wherein the second code is set for the second level conversion circuit module;

S803. Send the first gate driving signal to the first level shifting circuit module, and send the second gate driving signal to the second level shifting circuit module.

Referring to FIG. 9 , Embodiment 2 of the present invention provides a gate drive circuit, including a voltage generation circuit module 401 , a level conversion circuit module, and a voltage regulation network module. Wherein, there are two level conversion circuit modules, which are the first level conversion circuit module 703 and the second level conversion circuit module 704; the voltage regulation network module includes: the first voltage regulation circuit module 901 and the second voltage regulation circuit module Two voltage regulation circuit modules 902 . Wherein, the input terminals of the first voltage regulating circuit module 901 and the second voltage regulating circuit module 902 are respectively connected to the output terminals of the voltage generating circuit module 401;

The output terminal of the first voltage regulation circuit module 901 is connected to the input terminal of the first level conversion circuit module 703 , and the output terminal of the second voltage regulation circuit module 902 is connected to the input terminal of the second level conversion circuit module 704 .

Specifically, the first voltage regulation circuit module and the second voltage regulation circuit module include: a selection unit for selecting resistors with different resistance values and at least two different resistors.

Specifically, the voltage regulation circuit module 702 may be a current control circuit for voltage division.

Since the input terminal of the first voltage regulating circuit module is connected to the output terminal of the voltage generating circuit module, and the output terminal of the first voltage regulating circuit module is connected to the input terminal of the first level conversion circuit module, therefore, the first voltage regulating circuit module The gate drive signal sent by the voltage generation circuit module can be adjusted through the preset first code to obtain the first gate drive signal, and the first gate drive signal can be sent to the first level conversion circuit module; similarly, the first gate drive signal can be sent to the first level conversion circuit module; The working process of the second voltage regulating circuit module can refer to the first voltage regulating circuit module, and will not be repeated here.

Through the working process of the second embodiment of the present invention, it is possible to provide each level shifting circuit module with the gate drive signal corresponding to the level shifting circuit module, thereby avoiding the difference in TFT characteristics caused by process fluctuations and realizing the TFT The display brightness is the same, which improves the phenomenon of dark and bright lines on the display panel, and even avoids the phenomenon of dark and bright lines on the display panel.

Referring to FIG. 10 , the method for driving the gate of the first voltage regulation circuit module 901 provided by Embodiment 2 of the present invention includes the following steps:

S1001. Receive a gate drive signal generated by the voltage generating circuit module;

S1002. According to the preset first code for adjusting the voltage of the gate drive signal corresponding to the first level conversion circuit module, adjust the voltage of the received gate drive signal to obtain the first gate drive signal, wherein , the first code is set for the first level conversion circuit module;

S1003. Send the first gate driving signal to a first level conversion circuit module.

Similarly, the method for driving the gate of the second voltage regulating circuit module 902 can refer to the method for driving the gate of the first voltage regulating circuit module, which will not be repeated here.

Specifically, the display device in the embodiment of the present invention may be a liquid crystal display or a plasma display.

In summary, the present invention provides a gate drive circuit, a display panel, and a display device, which are used to provide each level shifting circuit module with a gate voltage corresponding to the level shifting circuit module through an additional voltage regulation network module. Pole driving signal, thereby avoiding the difference in TFT characteristics caused by process fluctuations, achieving the same display brightness of TFT, improving the phenomenon of dark and bright lines on the display panel, and even avoiding the phenomenon of dark and bright lines on the display panel.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (7)

1. a gate driver circuit, comprises voltage generation circuit module and at least two level shifting circuit modules, it is characterized in that, also comprise: voltage-regulation mixed-media network modules mixed-media;

The input end of described voltage-regulation mixed-media network modules mixed-media is connected with the output terminal of described voltage generation circuit module, and each output terminal of described voltage-regulation mixed-media network modules mixed-media is connected with the input end of this output terminal level shifting circuit module one to one respectively;

Described voltage-regulation mixed-media network modules mixed-media, specifically for:

Receive the gate drive signal of described voltage generation circuit CMOS macro cell;

According to the code of the voltage for adjusting gate drive signal preset, adjust the voltage of the gate drive signal received, obtain the gate drive signal that level shifting circuit module described in each is corresponding respectively, wherein, described code is for for level shifting circuit module installation described in each;

Gate drive signal described in each corresponding to level shifting circuit module is sent to respectively this level shifting circuit module.

2. gate driver circuit according to claim 1, is characterized in that, the number of described level shifting circuit module is two, is respectively the first level shifting circuit module and second electrical level change-over circuit module; Described voltage-regulation mixed-media network modules mixed-media, comprising: the low voltage difference for reducing the voltage of voltage signal falls output circuit module and voltage regulator circuit module;

Wherein, the input end that described low voltage difference falls output circuit module is connected with the output terminal of described voltage generation circuit module; The output terminal that described low voltage difference falls output circuit module is connected with the first input end of described voltage regulator circuit module; First output terminal of described voltage regulator circuit module is connected with the input end of the first level shifting circuit module, and the second output terminal of described voltage regulator circuit module is connected with the input end of second electrical level change-over circuit module;

Described voltage regulator circuit module, specifically for:

Receive the gate drive signal that described low voltage difference falls the transmission of output circuit module;

According to the first code of the voltage for adjust gate drive signal corresponding for the first level shifting circuit module preset, adjust the voltage of the gate drive signal received, obtain first grid drive singal, wherein, described first code is for the first level shifting circuit module installation;

According to the second code of the voltage for adjust gate drive signal corresponding for second electrical level change-over circuit module preset, adjust the voltage of the gate drive signal received, obtain second grid drive singal, wherein, described second code is for second electrical level change-over circuit module installation;

Described first grid drive singal is sent to described first level shifting circuit module, described second grid drive singal is sent to described second electrical level change-over circuit module.

3. gate driver circuit according to claim 1, is characterized in that, the number of described level shifting circuit module is two, is respectively the first level shifting circuit module and second electrical level change-over circuit module; Described voltage-regulation mixed-media network modules mixed-media, comprising: the first voltage regulator circuit module and the second voltage regulator circuit module;

Wherein, the input end of the first voltage regulator circuit module and the input end of the second voltage regulator circuit module are connected with the output terminal of described voltage generation circuit module respectively;

The output terminal of the first voltage regulator circuit module is connected with the input end of the first level shifting circuit module, and the output terminal of the second voltage regulator circuit module is connected with the input end of second electrical level change-over circuit module;

Described first voltage regulator circuit module, specifically for:

Receive the gate drive signal of described voltage generation circuit CMOS macro cell;

According to the first code of the voltage for adjust gate drive signal corresponding for the first level shifting circuit module preset, adjust the voltage of the gate drive signal received, obtain first grid drive singal, wherein, described first code is for the first level shifting circuit module installation;

Described first grid drive singal is sent to the first level shifting circuit module;

Described second voltage regulator circuit module, specifically for:

Receive the gate drive signal of described voltage generation circuit CMOS macro cell;

According to the second code of the voltage for adjust gate drive signal corresponding for second electrical level change-over circuit module preset, adjust the voltage of the gate drive signal received, obtain second grid drive singal, wherein, described second code is for second electrical level change-over circuit module installation;

Described second grid drive singal is sent to second electrical level change-over circuit module.

4. the gate driver circuit according to Claims 2 or 3, is characterized in that, described voltage regulator circuit module comprises: for the different resistance of selection unit and at least two selecting the resistance of different resistance values.

5. a display panel, it is characterized in that, comprise the gate driver circuit described in any one of claim 1-4 and at least two face inner grid circuit modules, wherein, the level shifting circuit module in the described gate driver circuit that described in each, the input end of face inner grid circuit module is corresponding with this face inner grid circuit module is connected.

6. display panel according to claim 5, is characterized in that, the number of described level shifting circuit module is two, is respectively the first level shifting circuit module and second electrical level change-over circuit module; The number of described inner grid circuit module is two, is respectively first surface inner grid circuit module and second inner grid circuit module;

Wherein, the output terminal of described first level shifting circuit module is connected with the input end of described first surface inner grid circuit module, and the output terminal of described second electrical level change-over circuit module is connected with the input end of described second inner grid circuit module;

Described first surface inner grid circuit module, specifically for:

Receive the first grid drive singal that described first level shifting circuit module sends;

According to first grid drive singal, drive the thin film transistor (TFT) corresponding to first surface inner grid circuit module;

Described second inner grid circuit module, specifically for:

Receive the second grid drive singal that described second electrical level change-over circuit module sends;

According to second grid drive singal, drive the thin film transistor (TFT) corresponding to second inner grid circuit module.

7. a display device, is characterized in that, comprises the display panel described in claim 5 or 6.