CN105609070A - Display apparatus and driving method thereof - Google Patents

Abstract

The present invention provides a display device and a driving method thereof, which relate to the field of display technology. The display device can avoid the problem of a decrease in the voltage of a scan signal output by a drive circuit module due to a change in load, resulting in a decrease in gate voltage. The display device includes a plurality of gate lines and at least two drive circuit modules, the at least two drive circuit modules include a first drive circuit module and a second drive circuit module, and the signal output terminal of the first drive circuit module is _first connected to n1 gate lines arranged continuously. Terminals are electrically connected; the second drive circuit module is electrically connected to the second end of the n ₂ gate lines arranged continuously, and its output start control terminal is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines, Its signal output terminal is electrically connected to the remaining n ₂ -1 of the n ₂ gate lines, and the n ₁ gate lines are arranged in the last scanning order, and the m ₁ gate lines are arranged in the scanning order with the n ₂ gate lines The first m ₁ grid lines are the same grid lines, 2≤m ₁ <n ₁ , n ₂ . The present invention is applicable to the manufacture of display devices.

Description

A display device and its driving method

technical field

The present invention relates to the field of display technology, in particular to a display device and a driving method thereof.

Background technique

LCD (Liquid Crystal Display, liquid crystal display) has been widely used in the field of display. LCD generally includes a color filter substrate and an array substrate in a box, and a liquid crystal located between the array substrate and the color filter substrate.

1, the array substrate includes a plurality of gate lines 1, a plurality of data lines 2 and a plurality of sub-pixels 3, wherein each sub-pixel 3 includes a TFT (ThinFilmTransistor, thin film transistor) 31 and a pixel electrode 32, the gate of TFT31 G is connected to the gate line 1 , the source S is connected to the data line 2 , and the drain D is connected to the pixel electrode 32 . The display principle of LCD is: in a scanning period, the gate line 1 provides scanning signals to the gate G of the TFT31 row by row to turn on the TFT31, and at the same time, the data line 2 provides data signals to the source S of the TFT31, so that through the drain of the TFT31 D writes a data signal into the pixel electrode 32 to realize the display of one frame of picture.

Due to the requirements of high resolution and narrow borders, as shown in FIG. 2, a plurality of gate drive circuit modules 4 and a plurality of connection lines 5 are usually integrated at one end of the gate line 1 of the array substrate. Each gate drive circuit module The module 4 is electrically connected to the gate line 1 through the connection line 5 to provide scanning signals to the gate line 1 .

When displaying the same grayscale image, the pixel electrodes of each row need to be written with data signals having the same voltage. However, as shown in FIG. 2, when the first gate drive circuit module completes providing scan signals to the 1st to Nth gate lines, the second gate drive circuit module starts to provide scanning signals to the N+1th to 2Nth gate lines. Provides scan signal. Before and after the scan signal is supplied to the N+1th gate line, the load carried by the second gate drive circuit module changes, thus outputting a scan signal whose actual voltage value is slightly lower than the expected value, then the N+1th gate line The voltage of the gate line decreases, thereby reducing the voltage obtained by the gate of the TFT connected to the N+1th gate line. However, the reduction of the gate voltage will prolong the turn-on time of the TFT and shorten the time for the data line to write data signals to the pixel electrodes, thus causing the voltage of the pixel electrodes to fail to reach an expected value.

Then, the voltage of the pixel electrode driven by the N+1th gate line is lower than the voltage of the pixel electrode driven by the Nth gate line. However, it takes a certain time for the gate drive circuit module to adjust the output voltage. Therefore, starting from the N+1th gate line, the voltages of the pixel electrodes driven by more than a dozen grid lines distributed continuously are higher than those of the pixels driven by the Nth gate line. The voltage of the electrodes is small, so a boundary line is easily formed at the junction of the gate lines driven by two adjacent gate drive circuit modules, causing a two-split screen problem, thereby reducing the display effect.

Contents of the invention

Embodiments of the present invention provide a display device and its driving method. When the above driving method is applied to the display device, it can solve the problem that the voltage of the scanning signal output by the gate drive circuit module decreases due to load changes, which in turn causes the voltage of the gate line to decrease. The problem; to further improve the boundary line generated at the junction of the gate lines driven by two adjacent gate drive circuit modules due to the reduction of the gate line voltage when displaying the same gray-scale picture, thereby causing the problem of two split screens.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In one aspect, a display device is provided, comprising: a plurality of gate lines and at least two drive circuit modules connected to the plurality of gate lines; the at least two drive circuit modules include: a first drive circuit module and a second drive circuit module Two drive circuit modules, the signal output end of the first drive circuit module is electrically connected to the first end of the n ₁ grid lines arranged continuously, and the second drive circuit module is connected to the first end of the n ₂ gate lines arranged continuously The two terminals are electrically connected, and the output start control terminal of the second drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines, and the signal of the second drive circuit module The output end is electrically connected to the remaining n ₂ -1 gate lines among the n ₂ gate lines;

Wherein, among the n ₁ gate lines, the last m ₁ gate lines arranged in the scanning order are the same gate lines as the m ₁ gate lines arranged in the front in the scanning order among the n ₂ gate lines, and 2≤m ₁ <n ₁ .

Optionally, the at least two drive circuit modules further include a third drive circuit module, the third drive circuit module is electrically connected to the first ends of the n3 gate lines arranged continuously, and the _third drive circuit The output start control terminal of the module is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal output terminal of the third driving circuit module is connected to the remaining gate lines of the n ₃ gate lines. The next n ₃ -1 grid lines are electrically connected;

Wherein, among the n ₃ gate lines, the first m ₂ gate lines arranged in the scanning order are the same gate lines as the last m ₂ gate lines arranged in the scanning order among the n ₂ gate lines, and 2≤m ₂ ≤n ₂ −m ₁ .

Optionally, the at least two driving circuit modules further include a third driving circuit module, the signal output end of the _third driving circuit module is electrically connected to the first ends of the n3 gate lines arranged continuously, and the The output start control terminal of the third drive circuit module is electrically connected to the start control signal output terminal of the timing control board of the display device; wherein, the n ₂ gate lines and the n ₃ gate lines are arranged continuously.

Optionally, if the _n1 gate lines are arranged at the front in the scanning order, the output start control terminal of the first drive circuit module is electrically connected to the start control signal output terminal of the timing control board of the display device .

Optionally, the driving circuit module is a driving chip, and the driving chip electrically connected to the first end of the gate line is located on one side of the plurality of gate lines, and is electrically connected to the second end of the gate line. The connected driving chip is located on the other side of the plurality of gate lines.

Optionally, the display device further includes a display area, drive circuit module areas located on both sides of the display area, and a fan-out wiring area located between the display area and the drive circuit module area; the display area Multiple gate lines are provided, at least two drive circuit modules are provided in the drive circuit module area, and multiple connection lines are provided in the fan-out wiring area, each of the connection lines is respectively connected to one of the The driving circuit module is connected to one gate line.

Optionally, all the consecutively arranged connection lines connected to the same drive circuit module are connected to a plurality of consecutively arranged gate lines, wherein the b gate lines arranged in a scanning order among the plurality of gate lines are only electrically connected with a drive circuit module;

If b is an odd number, the b connection lines connected to the b grid lines are distributed symmetrically with respect to the middlemost grid line arranged in the scanning order among the b grid lines;

If b is an even number, the b connection lines connected to the b grid lines are symmetrical about the middle positions of the b/2th and (b+2)/2th lines arranged in the scanning order among the b grid lines distributed.

Optionally, 2≤m ₁ ≤n ₁ /2.

An embodiment of the present invention provides a display device, which includes: a plurality of gate lines, and at least two drive circuit modules connected to the plurality of gate lines; the at least two drive circuit modules include: a first drive circuit module and the second drive circuit module, the signal output end of the first drive circuit module is electrically connected to the first end of the n ₁ gate lines arranged continuously, and the second drive circuit module is connected to the second end of the n ₂ gate lines arranged continuously Electrically connected, and the output start control terminal of the second drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines, and the signal output terminal of the second drive circuit module is connected to the n ₂ gate lines The remaining n ₂ -1 grid lines are electrically connected; among them, among the n ₁ grid lines, the last m ₁ grid lines are arranged in the scanning order, and among the n ₂ grid lines, the m ₁ grid lines are arranged in the front according to the scanning order The grid lines are the same grid line, and 2≤m ₁ <n ₁ , n ₂ . Then, when the second driving circuit module starts to provide scanning signals to the last m ₁ -1 gate lines arranged in the scanning order among the n ₁ gate lines, even if the second driving circuit module causes the output of the driving circuit module to The voltage of the scanning signal decreases, because the first driving circuit module still provides scanning signals to the m ₁ -1 gate lines, so the voltage of the m ₁ -1 gate lines will not decrease; thus, when displaying the same grayscale picture, It can improve the boundary line generated at the junction of the gate lines driven by two adjacent driving circuit modules caused by the voltage reduction of the gate lines, thereby causing the problem of two split screens.

In another aspect, a method for driving a display device is provided, the method comprising:

In one scanning period, the _first driving circuit module provides scanning signals to n1 gate lines;

After the first driving circuit module provides scanning signals to the n ₁ -m ₁ +1th gate line arranged in the scanning order among the n ₁ gate lines, the second driving circuit module is turned on;

The second driving circuit module provides scanning signals to m ₁ −1 gate lines arranged last in a scanning order among the n ₁ gate lines.

Optionally, the at least two drive circuit modules further include a third drive circuit module, the third drive circuit module is electrically connected to the first ends of the n3 gate lines arranged continuously, and the _third drive circuit The output start control terminal of the module is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal output terminal of the third driving circuit module is connected to the remaining gate lines of the n ₃ gate lines. The lower n ₃ -1 gate lines are electrically connected; wherein, among the n ₃ gate lines, the m ₂ gate lines that are arranged at the top in the scanning order are connected with the n ₂ gate lines that are arranged in the last in the scanning order m ₂ grid lines are the same grid line, and 2≤m ₂ ≤n ₂ -m ₁ ;

The method also includes:

In one scan period, the second drive circuit module provides scan signals to n ₂ gate lines;

After the second driving circuit module provides a scanning signal to the n ₂ -m ₂ +1th gate line arranged in the scanning order among the n ₂ gate lines, the third driving circuit module is turned on;

The third driving circuit module provides scanning signals to the last m ₂ −1 gate lines arranged in a scanning order among the n ₂ gate lines.

Optionally, the at least two driving circuit modules further include a third driving circuit module, the signal output end of the _third driving circuit module is electrically connected to the first ends of the n3 gate lines arranged continuously, and the The output start control terminal of the third drive circuit module is electrically connected to the start control signal output terminal of the timing control board of the display device; wherein, the n ₂ gate lines are arranged continuously with the n ₃ gate lines;

The method also includes:

In one scan period, the second drive circuit module provides scan signals to n ₂ gate lines;

The initial control signal output terminal of the timing control board of the display device outputs a start signal to the output initial control terminal of the third drive circuit module;

The third driving circuit module provides scan signals to the n ₃ gate lines.

An embodiment of the present invention provides a method for driving a display device, the method comprising: within a scan period, the first drive circuit module provides scan signals to n ₁ gate lines _; After the n ₁ -m ₁ + _1th gate line arranged in the scanning order among the gate lines provides the scanning signal, the second driving circuit module is turned on; m ₁ -1 gate lines provide scanning signals. In this way, within one scanning period, the second driving circuit module provides scanning signals to the last m ₁ -1 gate lines arranged in the scanning order among the n ₁ gate lines, even if the second driving circuit module causes the gate line to change due to the load change. The voltage of the scanning signal output by the driving circuit module decreases, because the first driving circuit module still provides the scanning signal to the m ₁ -1 gate lines, so the voltage of the m ₁ -1 gate lines will not decrease; thus, when displaying the same In the case of a gray-scale image, the boundary line generated at the junction of the grid lines driven by two adjacent driving circuit modules due to the voltage reduction of the grid lines can be improved, thereby causing the problem of a two-split screen.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a display device provided in the prior art;

FIG. 2 is a schematic structural diagram of another display device provided in the prior art;

FIG. 3 is a schematic structural diagram of a display device provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another display device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another display device provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another display device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a driving circuit module provided by an embodiment of the present invention;

Fig. 8 is the working sequence diagram of Fig. 7;

FIG. 9 is a working sequence diagram of FIG. 3 .

Reference signs:

1-gate line; 101-the first end of the gate line; 102-the second end of the gate line; 2-data line; 3-sub-pixel; 31-TFT; 32-pixel electrode; 4-gate drive circuit module; 5-connection line; 6-the first drive circuit module; 60-the output start control terminal of the first drive circuit module; 61-the signal output terminal of the first drive circuit module; 7-the second drive circuit module; 70-the first The output start control terminal of the second drive circuit module; 71-the signal output terminal of the second drive circuit module; 8-the third drive circuit module; 80-the output start control terminal of the third drive circuit module; 81-the third drive The signal output terminal of the circuit module; 9-sequence control board; 90-the initial control signal output terminal of the timing control board; 91-the row scanning signal output terminal of the timing control board; 92-the enable signal output terminal of the timing control board; 93-Gate turn-on voltage output terminal of timing control board; 94-Gate turn-off voltage output terminal of timing control board; 10-Display area; 11-Drive circuit module area; 12-Fan-out wiring area; 13-Shift Register; 130-the output start control terminal of the shift register; 131-the output terminal of the shift register; 132-the reset terminal of the shift register; 133-the row scan control terminal of the shift register; 14-AND gate; 140- The enable control terminal of the AND gate; 141-the input terminal of the AND gate; 142-the output terminal of the AND gate; 15-the level conversion unit; 150-the first control terminal of the level conversion unit; 151-the level conversion unit Gate turn-on voltage input end; 152—gate turn-off voltage input end of the level conversion unit; 153—output end of the level conversion unit; 16—output buffer.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

An embodiment of the present invention provides a display device, as shown in FIG. 3 , the display device includes: a plurality of gate lines 1 and at least two driving circuit modules connected to the plurality of gate lines 1; at least two driving circuit modules include: The first driving circuit module 6 and the second driving circuit module 7, the signal output end 61 of the first driving circuit module 6 is electrically connected with the _first end 101 of the n1 grid lines arranged continuously, the second driving circuit module 7 is connected with the continuous The second ends 102 of the arranged n ₂ gate lines are electrically connected, and the output start control terminal 60 of the second drive circuit module 7 is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines, the first The signal output terminal 71 of the second drive circuit module 7 is electrically connected to the remaining n ₂ -1 gate lines in the n ₂ gate lines; wherein, among the n ₁ gate lines, the last m ₁ gate lines are arranged in the scanning order Among the n ₂ raster lines, m ₁ raster lines arranged first in the scanning order are the same raster lines, and 2≤m ₁ <n ₁ , n ₂ .

In the above display device, the specific circuit structure included in each driving circuit module may be the same or different, which is not limited here. In order to reduce manufacturing difficulty and simplify the process, drive circuit modules with the same structure can be selected. For example, each driving circuit module may include components such as a shift register, an AND gate, a level conversion unit, and an output buffer. If the specific circuit structures of the two driving circuit modules are the same, it means that the two driving circuit modules The number, type, and connection relationship between components such as shift registers, AND gates, level conversion units, and output buffers included are the same.

In the above display device, the embodiments of the present invention do not limit the specific number of driving circuit modules, which may be determined according to actual conditions. If the resolution of the display device is 1920×1080, the display device may only include a first drive circuit module and a second drive circuit module (this kind of structure can be shown in Figure 3), and the first drive circuit module can be electrically connected to The first ends of the 970 grid lines arranged continuously, the output start control end of the second driving circuit module is electrically connected to the 950th line arranged in the scanning order, and the signal output end of the second driving circuit module is connected to the 950th line arranged in the scanning order. Gatelines 951-1920 are electrically connected. Of course, the display device can also only include the first driving circuit module, the second driving circuit module and the third driving circuit module; The output start control terminal of the circuit module is electrically connected to the 640th gate line arranged in the scanning order, the signal output terminal of the second driving circuit module is electrically connected to the 641-1300th gate line arranged in the scanning order, and the third driving circuit module The output start control terminal of the first drive circuit module is electrically connected to the 1280th gate line arranged in the scanning order, and the signal output terminal of the third driving circuit module is electrically connected to the 1281-1920th gate line arranged in the scanning order. This kind of structure can refer to Figure 4 As shown; or, the output start control terminal of the third drive circuit module can be electrically connected with the start control signal output terminal of the timing control board of the display device, and the signal output terminal of the third drive circuit module is connected with the first control signal arranged in the scanning order. 1301-1920 grid lines are electrically connected, and this kind of structure can be referred to as shown in FIG. 5 . Of course, the above display device may also include four, five or other driving circuit modules, which are not specifically limited here. The embodiment of the present invention does not limit the resolution of the display device, and the above description only takes a 1920×1080 display device as an example. The drawings provided in the embodiments of the present invention are all illustrated by taking each driving circuit module electrically connected to 15 gate lines as an example. At the same time, in order to distinguish the first end and the second end of the grid line, black dots are respectively marked on the first end and the second end of the grid line in the drawings provided by the embodiment of the present invention. Of course, in the actual circuit connection, the black dot does not exist.

Embodiments of the present invention do not limit the structure of the above-mentioned display device, and the display device may be display devices such as liquid crystal displays, OLED (Organic Light-Emitting Diode, organic light-emitting diode) displays, and televisions, digital cameras, mobile phones, and flat panels that include these display devices. Any product or component with a display function, such as a computer.

Those skilled in the art can know from the prior art that a display device may include an array substrate, and the array substrate may include a plurality of gate lines, a plurality of data lines, a plurality of sub-pixels and the like. If the display device is a liquid crystal display device, the display device may further include a color filter substrate in a box with the array substrate, and a liquid crystal located between the array substrate and the color filter substrate. If the display device is an OLED display device, the display device may further include a packaging substrate packaged with the array substrate, and the array substrate may also include an organic light-emitting functional layer and the like. This embodiment of the present invention does not limit it.

The embodiment of the present invention does not limit the specific manufacturing method of the above-mentioned driving circuit module. As an example, GOA (GateDriveronArray, array substrate row driving technology) can be used to integrate the driving circuit module on the array substrate of the display device; of course, it can also be used In the conventional technology, the driving circuit module is glued on the array substrate, which is not specifically limited here. Since the former does not need to form a driving circuit module separately, avoids bonding the driving circuit module to the array substrate, and can realize a display device with a narrow frame, therefore, the former is mostly selected in actual production.

In the description of the present invention, it should be understood that "A and B are electrically connected" means that a path can be formed between A and B, that is, A can transmit a current or voltage signal to B. The embodiment of the present invention does not limit the specific way to realize the electrical connection. For example, A can be connected to B through a wire to realize the electrical connection, or A can be directly connected to B to realize the electrical connection, and of course other ways can also be used.

In the above display device, the signal output end of the first drive circuit module is electrically connected to the first ends of the n ₁ gate lines arranged continuously; wherein, the signal output end of the first drive circuit module can provide scanning for the n ₁ gate lines Signal; n ₁ gate lines arranged continuously means: n ₁ gate lines can be arranged continuously along the OC direction to form multiple rows as shown in Figure 3; of course, they can also be continuously arranged along the OD direction to form multiple columns, here Not specifically limited. The embodiments of the present invention and the accompanying drawings are described by taking n ₁ gate lines arranged continuously along the OC direction to form multiple lines for illustration. In addition, the two ends of each gate line are respectively the _first end and the second end. As shown in FIG. One end of the module 6 is the second end. The meanings of the first end and the second end of the other gate lines included in the above display device, such as the n ₂ gate lines, are the same as those of the above n ₁ gate lines, and will not be repeated hereafter.

In the above display device, the output start control terminal of the second drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines; wherein, the output start control terminal of the second drive circuit module can be The start control signal is received, and the scan signal is output under the control of the start control signal.

It should be noted that in the prior art, the structure in which the gate drive circuit module is integrated at only one end of the gate line is called unilateral drive, and the structure in which gate drive circuit modules are integrated at both ends of the gate line is called double-sided drive. In the invention, among the n ₁ gate lines, the last m ₁ gate lines arranged in the scanning order are respectively electrically connected to the first drive circuit module and the second drive circuit module, which adopts double-sided driving; and the n ₁ gate lines Among them, only the gate lines electrically connected to the first driving circuit module adopt unilateral driving. Therefore, the structure designed in the present invention can be called a semi-bilateral drive.

It should be further noted that, the embodiment of the present invention does not limit the driving method of the sub-pixels. In the traditional technology, each row of sub-pixels is mostly driven by one gate line. Of course, double-gate drive can also be used, that is, each row of sub-pixels is driven by two gate lines. The present invention is not limited thereto. In a display device using dual-gate drive, since the charging time of each sub-pixel itself is relatively short, if the voltage of the scanning signal output by the gate drive circuit module decreases, the turn-on time of the TFT will be prolonged, which will further shorten the charging time of the data line to the pixel. The time when the electrode writes the data signal. Therefore, the application of the present invention in a dual-gate driven display device has a better effect.

An embodiment of the present invention provides a display device, which includes: a plurality of gate lines, and at least two drive circuit modules connected to the plurality of gate lines; the at least two drive circuit modules include: a first drive circuit module and the second drive circuit module, the signal output end of the first drive circuit module is electrically connected to the first end of the n ₁ gate lines arranged continuously, and the second drive circuit module is connected to the second end of the n ₂ gate lines arranged continuously Electrically connected, and the output start control terminal of the second drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines, and the signal output terminal of the second drive circuit module is connected to the n ₂ gate lines The remaining n ₂ -1 grid lines are electrically connected; among them, among the n ₁ grid lines, the last m ₁ grid lines are arranged in the scanning order, and among the n ₂ grid lines, the m ₁ grid lines are arranged in the front according to the scanning order The grid lines are the same grid line, and 2≤m ₁ <n ₁ , n ₂ . Then, when the second driving circuit module starts to provide scanning signals to the last m ₁ -1 gate lines arranged in the scanning order among the n ₁ gate lines, even if the second driving circuit module causes the output of the driving circuit module to The voltage of the scanning signal decreases, because the first driving circuit module still provides scanning signals to the m ₁ -1 gate lines, so the voltage of the m ₁ -1 gate lines will not decrease; thus, when displaying the same grayscale picture, It can improve the boundary line generated at the junction of the gate lines driven by two adjacent driving circuit modules caused by the voltage reduction of the gate lines, thereby causing the problem of two split screens.

Optionally, in order to improve the utilization rate of the driving circuit modules, only the gate lines near the junction of the gate lines driven by two adjacent driving circuit modules need to be electrically connected to the two driving circuit modules, so 2≤m ₁ can be selected ≤ n ₁ /2.

Optionally, as shown in FIG. 4 , the at least two drive circuit modules above further include a third drive circuit module 8, the third drive circuit module 8 is electrically connected to the first ends 101 of the n ₃ gate lines arranged continuously, and The output start control terminal 80 of the third drive circuit module 8 is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal output terminal 81 of the third drive circuit module 8 is connected to the n ₃ gate lines The remaining n ₃ -1 grid lines are electrically connected; wherein, among the n ₃ grid lines, the first m ₂ grid lines are arranged in the scanning order and among the n ₂ grid lines, the last m ₂ grid lines are arranged in the scanning order The grid lines are the same grid line, and 2≤m ₂ ≤n ₂ -m ₁ .

In this way, when the third driving circuit module starts to provide scan signals to the last _m2-1 gate lines in the scanning order among the _n2 gate lines, even if the third driving circuit module causes the output of the driving circuit module to The voltage of the scanning signal decreases, because the second driving circuit module still provides scanning signals to the m ₂ -1 gate lines, so the voltage of the m ₂ -1 gate lines will not decrease; thus, when displaying the same grayscale picture, The junction line generated at the junction of the gate lines driven by the second driving circuit module and the third driving circuit module due to the voltage reduction of the gate lines can be improved, thereby causing the problem of two split screens.

Optionally, as shown in FIG. 5 , the above-mentioned at least two drive circuit modules further include a third drive circuit module 8, the signal output terminal 81 of the third drive circuit module 8 is connected to the first ends of the n ₃ gate lines arranged continuously 101 is electrically connected, and the output initial control terminal 80 of the third drive circuit module 8 is electrically connected to the initial control signal output terminal 91 of the timing control board 9 of the display device; wherein, n ₂ gate lines and n ₃ gate lines in a row.

In this way, the last n ₂ -m ₁ gate lines arranged in the scanning order among the n ₂ gate lines are only driven by the second driving circuit module, while the third driving circuit module drives the n ₃ gate lines in the scanning order. For the display device shown in FIG. 4, the utilization rate of the driving circuit module can be improved. For example, the three driving units in FIG. 5 drive 39 gate lines in total, and the three driving units in FIG. 4 drive 33 gate lines in total; but The display device shown in FIG. 4 can further improve the boundary line generated at the junction of the gate lines driven by the second driving circuit module and the third driving circuit module, and further improve the quality of the display picture.

It should be noted that, if the above-mentioned display device includes more than three driving circuit modules, and the multiple driving circuit modules drive a plurality of gate lines in a scanning order, except for the first and last driving circuit modules, any other driving circuit modules Both are adjacent to two driving circuit modules, then the electrical connection structure between the current driving circuit module and the previous adjacent driving circuit module and the gate line can be as shown in 3, the current driving circuit module and the next adjacent driving circuit module The electrical connection structure between the circuit modules and the grid lines may be as shown in FIG. 4 or in FIG. 5 , which is not specifically limited here, but may be determined according to actual conditions. In order to improve the boundary line phenomenon to the greatest extent, the electrical connection structure between the current drive circuit module and the previous adjacent drive circuit module and the grid lines can be selected as shown in 3. The current drive circuit module and the next adjacent drive circuit module The electrical connection structure with the gate lines is shown in 4, so that the boundary line generated at the junction of the gate lines driven by any two adjacent driving circuit modules can be improved.

It should be further noted that, the embodiment of the present invention does not limit the specific arrangement positions of the n ₁ gate lines driven by the above-mentioned first driving circuit module among all the gate lines. For example, they are arranged in a scanning order, and the n ₁ gate lines can be It can be at the front, it can also be in the middle, and of course it can be other positions.

Referring to Fig. 4 and _Fig . 5, if n1 gate lines are arranged at the front according to the scanning order, the output start control terminal 60 of the first drive circuit module 6 is connected to the start control signal output terminal of the timing control board 9 of the display device. 90, so that the first drive circuit module can output scan signals under the control of the timing control board.

Optionally, the above-mentioned drive circuit module is a drive chip, the drive chip electrically connected to the first end of the gate line is located on one side of the plurality of gate lines, and the drive chip electrically connected to the second end of the gate line is located on one side of the plurality of gate lines on the other side, which facilitates wiring.

Optionally, as shown in FIG. 3 , the display device further includes a display area 10, a driving circuit module area 11 located on both sides of the display area 10, and a fan-out wiring area 12 located between the display area 10 and the driving circuit module area 11 ( Also known as the Fanout area); the display area 10 is provided with a plurality of gate lines 1, the drive circuit module area 11 is provided with at least two drive circuit modules, and the fan-out wiring area 12 is provided with a plurality of connection lines 5, and each connection line is respectively It is connected with a driving circuit module and a gate line. In this way, the driving circuit module can be electrically connected to the gate line through the connection line, thereby simplifying the design difficulty.

Optionally, all the consecutively arranged connection lines connected to the same driving circuit module are connected to a plurality of consecutively arranged gate lines, wherein, among the plurality of gate lines, the b gate lines arranged in the scanning order are only electrically connected to one driving circuit module. connection; if b is an odd number, the b connection lines connected to the b grid lines are distributed symmetrically with respect to the middlemost grid line arranged in the scanning order among the b grid lines; if b is an even number, the b connection lines connected to the b grid lines The b connection lines are distributed symmetrically with respect to the middle positions of the b/2th and (b+2)/2th lines arranged in the scanning order among the b grid lines.

As an example, the connection line connected to the first driving circuit module is taken as an example for description. As shown in FIG. 3 , all 15 consecutively arranged connecting lines 5 connected to the first drive circuit module 6 are connected to 15 consecutively arranged gate lines 1, wherein, among the 15 gate lines, 9 gate lines arranged in a scanning order Only electrically connected to the first drive circuit module 6, the nine connection lines connected to the nine gate lines are distributed symmetrically with respect to the fifth gate line, which is the middlemost gate line arranged in the scanning order among the nine gate lines; As shown in FIG. 6 , all 15 consecutively arranged connection lines 5 connected to the first drive circuit module 6 are connected to 15 consecutively arranged gate lines 1, wherein, among the 15 gate lines, 10 gate lines arranged in a scanning order Only electrically connected to the first driving circuit module 6, the 10 connecting lines connected to the 10 gate lines are distributed symmetrically about the middle positions of the 5th and 6th lines arranged in the scanning order among the 10 gate lines.

Optionally, in order to reduce cost and design difficulty, each driving circuit module includes the same specific circuit structure. For example, each driving circuit module may include components such as a shift register, an AND gate, a level conversion unit, and an output buffer. If the specific circuit structures of the two driving circuit modules are the same, it means that the two driving circuit modules The number, type, and connection relationship between components such as shift registers, AND gates, level conversion units, and output buffers included are the same. There are many structures of the driving circuit module in the prior art, which are not limited here. A specific circuit structure is now provided for detailed description. Referring to Fig. 7, each driving circuit module can include a plurality of shift registers 13, a plurality of AND gates 14, a plurality of level conversion units 15 and a plurality of output buffers 16, and each shift register 13 includes an output Start control terminal 130, output terminal 131, reset terminal 132 and row scan control terminal 133, each AND gate 14 includes enabling control terminal 140, input terminal 141 and output terminal 142, each level conversion unit 15 includes a first control terminal 151 , a gate-on voltage input terminal 152 , a gate-off voltage input terminal 153 and an output terminal 154 .

Wherein, except the first-stage shift register, the output start control end of each other shift register is connected to the reset end of the upper-stage shift register adjacent to it; the output end of each shift register is connected to each The input terminal of the gate; the output terminal of each AND gate is connected with the first control terminal of each output buffer; the output terminal of each output buffer is connected with the first terminal or the second terminal of a gate line.

The output start control terminal of the first-stage shift register can be electrically connected to the start control signal output terminal of the timing control board or electrically connected to other signal lines to obtain the STV signal (that is, the gate drive outputs the start control signal); refer to the figure 7, the row scanning control terminal 133 of each shift register 13 can be electrically connected to the row scanning signal output terminal 91 of the timing control board 9, so as to obtain the CPV signal (that is, the clock signal that controls the scanning rows to be opened in turn); each and The enabling control terminal 140 of the gate 14 can be electrically connected to the enabling signal output terminal 92 of the timing control board 9 to obtain the OE signal (that is, the enabling control signal for opening and closing the scanning line); the gate of each level conversion unit 15 The turn-on voltage input terminal 152 can be electrically connected to the gate turn-on voltage output terminal 93 of the timing control board 9 to obtain the VGH voltage (i.e. the high level voltage of the gate drive pulse); the gate of each level conversion unit 15 is turned off The voltage input terminal 153 can be electrically connected to the gate-off voltage output terminal 94 of the timing control board 9 to obtain the VGL voltage (ie, the low-level voltage of the gate driving pulse).

Taking the driving circuit module shown in FIG. 7 as an example, its driving process is described. Referring to Fig. 8, when the output start control terminal of the first-stage shift register obtains the high level of the STV signal, the drive circuit module starts to work; then in the next clock cycle T1 of the CPV signal, the first-stage The output terminal of the shift register outputs a control signal to the AND gate. When the AND gate obtains a low-level OE signal, the AND gate outputs the control signal to the level conversion unit, and then under the control of the control signal, the output buffer sends the The first gate line outputs the driving voltage; when the CPV signal is immediately followed by the clock cycle T2 of T1, the first-stage shift register stops working, the second-stage shift register starts to work, and the output of the second-stage shift register is sent to the AND gate Outputting a control signal, when the AND gate obtains a low-level OE signal, the AND gate outputs the control signal to the level conversion unit, and then outputs the driving voltage to the second gate line through the output buffer under the control of the control signal; In this way, under the common control of the CPV signal and the OE signal, each stage of the shift register is sequentially turned on, so as to provide scanning signals to the first gate line to the Mth gate line row by row.

It should be noted here that the structure of the driving circuit modules included in the display device provided by the embodiment of the present invention may be as shown in FIG. 7 , but the source of the STV signal obtained by each driving circuit module is different. For example, if the n1 gate lines driven by the _first driving circuit module are arranged at the front in the scanning order, the output start control terminal of the first-stage shift register in the first drive circuit module can be electrically connected to the start control terminal of the timing control board. start control signal output terminal; for another example, the output start control terminal of the first-stage shift register in the second drive circuit module can be electrically connected to the first gate line arranged in the scanning order among the n ₂ gate lines; for another example, The output start control terminal of the first-stage shift register in the third drive circuit module can be electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, or electrically connected to the start control signal output of the timing control board end.

Embodiment two

An embodiment of the present invention provides a method for driving a display device. The structure of the display device may be as shown in FIG. 3; the method includes:

In one scan period, the first drive circuit module 6 provides scan signals to _n1 gate lines;

After the first driving circuit module 6 provides scanning signals to the n ₁ -m ₁ +1th gate lines arranged in the scanning order among the n ₁ gate lines, the second driving circuit module 7 is turned on;

The second driving circuit module 7 provides scanning signals to the last m ₁ −1 gate lines arranged in the scanning order among the n ₁ gate lines.

It should be noted that the scan period is the time taken by the display device to display one frame of picture.

An embodiment of the present invention provides a method for driving a display device, the method comprising: within a scan period, the first drive circuit module provides scan signals to n ₁ gate lines _; After the n ₁ -m ₁ + _1th gate line arranged in the scanning order among the gate lines provides the scanning signal, the second driving circuit module is turned on; m ₁ -1 gate lines provide scanning signals. In this way, within one scanning period, the second driving circuit module provides scanning signals to the last m ₁ -1 gate lines arranged in the scanning order among the n ₁ gate lines, even if the second driving circuit module causes the gate line to change due to the load change. The voltage of the scanning signal output by the driving circuit module decreases, because the first driving circuit module still provides the scanning signal to the m ₁ -1 gate lines, so the voltage of the m ₁ -1 gate lines will not decrease; thus, when displaying the same In the case of a gray-scale image, the boundary line generated at the junction of the grid lines driven by two adjacent driving circuit modules due to the voltage reduction of the grid lines can be improved, thereby causing the problem of a two-split screen.

Optionally, as shown in FIG. 4 , the at least two drive circuit modules above further include a third drive circuit module 8, the third drive circuit module 8 is electrically connected to the first ends 101 of the n ₃ gate lines arranged continuously, and The output start control terminal 80 of the third drive circuit module 8 is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal output terminal 81 of the third drive circuit module 8 is connected to the n ₃ gate lines The remaining n ₃ -1 grid lines are electrically connected; wherein, among the n ₃ grid lines, the first m ₂ grid lines are arranged in the scanning order and among the n ₂ grid lines, the last m ₂ grid lines are arranged in the scanning order The two grid lines are the same grid line, and 2≤m ₂ ≤n ₂ -m ₁ ; then the above method also includes:

In one scan period, the second drive circuit module 7 provides scan signals to n ₂ gate lines;

After the second driving circuit module 7 provides scanning signals to the n ₂ -m ₂ +1th gate line arranged in the scanning order among the n ₂ gate lines, the third driving circuit module 8 is turned on;

The third driving circuit module 8 provides scanning signals to the last m ₂ -1 gate lines arranged in the scanning order among the n ₂ gate lines.

In this way, when the third driving circuit module starts to provide scan signals to the last _m2-1 gate lines in the scanning order among the _n2 gate lines, even if the third driving circuit module causes the output of the driving circuit module to The voltage of the scanning signal decreases, because the second driving circuit module still provides scanning signals to the m ₂ -1 gate lines, so the voltage of the m ₂ -1 gate lines will not decrease; thus, when displaying the same grayscale picture, The junction line generated at the junction of the gate lines driven by the second driving circuit module and the third driving circuit module due to the voltage reduction of the gate lines can be improved, thereby causing the problem of two split screens.

Optionally, as shown in FIG. 5 , the above-mentioned at least two drive circuit modules further include a third drive circuit module 8, the signal output terminal 81 of the third drive circuit module 8 is connected to the first ends of the n ₃ gate lines arranged continuously 101 is electrically connected, and the output initial control terminal 80 of the third drive circuit module 8 is electrically connected to the initial control signal output terminal 91 of the timing control board 9 of the display device; wherein, n ₂ gate lines and n ₃ gate lines Continuous arrangement; then the above method also includes:

In one scan period, the second drive circuit module provides scan signals to n ₂ gate lines;

The initial control signal output terminal 90 of the timing control board 9 of the display device outputs a start signal to the output initial control terminal 80 of the third drive circuit module 8;

The third driving circuit module 8 provides scanning signals to n ₃ gate lines.

In this way, the last n ₂ -m ₁ gate lines arranged in the scanning order among the n ₂ gate lines are only driven by the second driving circuit module, while the third driving circuit module drives the n ₃ gate lines in the scanning order. In the display device shown in FIG. 4 , the utilization rate of the driving circuit module can be improved, but the display device shown in FIG. 4 can further improve the noise generated at the junction of the gate lines driven by the second driving circuit module and the third driving circuit module. The boundary line further improves the quality of the displayed picture.

It should be noted that, if the above-mentioned display device includes more than three driving circuit modules, and the multiple driving circuit modules drive a plurality of gate lines in a scanning order, except for the first and last driving circuit modules, any other driving circuit modules Both are adjacent to two driving circuit modules, then the electrical connection structure between the current driving circuit module and the previous adjacent driving circuit module and the gate line can be as shown in 3, the current driving circuit module and the next adjacent driving circuit module The electrical connection structure between the circuit modules and the grid lines may be as shown in FIG. 4 or in FIG. 5 , which is not specifically limited here, but may be determined according to actual conditions. In order to improve the boundary line phenomenon to the greatest extent, the electrical connection structure between the current drive circuit module and the previous adjacent drive circuit module and the grid lines can be selected as shown in 3. The current drive circuit module and the next adjacent drive circuit module The electrical connection structure with the gate lines is shown in 4, so that the boundary line generated at the junction of the gate lines driven by any two adjacent driving circuit modules can be improved.

It should be further noted that, the embodiment of the present invention does not limit the specific arrangement positions of the n ₁ gate lines driven by the above-mentioned first driving circuit module among all the gate lines. For example, they are arranged in a scanning order, and the n ₁ gate lines can be It can be at the front, it can also be in the middle, and of course it can be other positions.

The above driving method will be specifically described below by taking the display device shown in FIG. 3 as an example. The display device shown in FIG. 3 satisfies: n ₁ =15, n ₁ -m ₁ +1=9, m ₁ =7; referring to FIG. 9 , the driving method specifically includes:

In a scanning period T, the first driving circuit module 6 provides scanning signals to n ₁ gate lines;

After the first driving circuit module 6 provides scanning signals to the n ₁ -m ₁ +1th gate lines arranged in the scanning order among the n ₁ gate lines, the second driving circuit module 7 is turned on;

The second driving circuit module 7 provides scanning signals to the last m ₁ −1 gate lines arranged in the scanning order among the n ₁ gate lines.

In this way, in different scanning periods, repeating the above steps can realize the unilateral drive of the 1st to 9th gate lines and the double-sided drive of the 10th to 15th gate lines, which can improve the first drive circuit module and the second drive. The boundary lines generated at the intersections of the gate lines driven by the circuit modules further cause the problem of two split screens.

It should be noted that, the above is only described by taking the display device including the first driving circuit module and the second driving circuit module as an example. If the display device includes multiple driving circuit modules, the driving method when the gate lines driven by two adjacent driving circuit modules adopt double-sided driving is similar to the above, and details will not be repeated here.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (11)

1. A display device, comprising: a plurality of gate lines and at least two drive circuit modules connected to the plurality of gate lines; characterized in that, The at least two drive circuit modules include: a first drive circuit module and a second drive circuit module, the signal output end of the first drive circuit module is electrically connected to the _first ends of n1 gate lines arranged continuously, so The second drive circuit module is electrically connected to the second ends of the n ₂ gate lines arranged continuously, and the output start control terminal of the second drive circuit module is connected to the n ₂ gate lines arranged in the scanning order The first gate line is electrically connected, and the signal output terminal of the second drive circuit module is electrically connected to the remaining n ₂ -1 gate lines among the n ₂ gate lines; Wherein, among the n ₁ gate lines, the last m ₁ gate lines arranged in the scanning order are the same gate lines as the m ₁ gate lines arranged in the front in the scanning order among the n ₂ gate lines, and 2≤m ₁ <n ₁ , n ₂ . 2. The display device according to claim 1, wherein the at least two driving circuit modules further comprise a third driving circuit module, and the third driving circuit module is connected to the _third driving circuit module of the n3 gate lines arranged continuously. One end is electrically connected, and the output start control end of the third drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal of the third drive circuit module The output terminal is electrically connected to the remaining n ₃ -1 gate lines among the n ₃ gate lines; Wherein, among the n ₃ gate lines, the first m ₂ gate lines arranged in the scanning order are the same gate lines as the last m ₂ gate lines arranged in the scanning order among the n ₂ gate lines, and 2≤m ₂ ≤n ₂ −m ₁ . 3. The display device according to claim 1, wherein the at least two driving circuit modules further comprise a third driving circuit module, the signal output terminals of the _third driving circuit module are connected to the n3 consecutively arranged The first end of the gate line is electrically connected, and the output start control end of the third driving circuit module is electrically connected to the start control signal output end of the timing control board of the display device; wherein, the n ₂ gates lines are arranged continuously with the n ₃ gate lines. 4. The display device according to any one of claims 1-3, wherein if the n ₁ gate lines are arranged at the front according to the scanning order, the output start control terminal of the first driving circuit module is connected to The initial control signal output terminal of the timing control board of the display device is electrically connected. 5. The display device according to claim 1, wherein the driving circuit module is a driving chip, and the driving chip electrically connected to the first end of the gate line is located on one of the plurality of gate lines. On one side, the driving chip electrically connected to the second end of the gate lines is located on the other side of the plurality of gate lines. 6. The display device according to claim 1, further comprising a display area, a drive circuit module area located on both sides of the display area, and a drive circuit module area located between the display area and the drive circuit module area. The fan-out wiring area between; the display area is provided with a plurality of gate lines, the drive circuit module area is provided with at least two drive circuit modules, and the fan-out wiring area is provided with a plurality of connection lines , each of the connection lines is respectively connected to one of the driving circuit modules and one of the gate lines. 7. The display device according to claim 6, characterized in that all the connecting lines connected to the same drive circuit module are connected to a plurality of consecutively arranged gate lines, wherein a plurality of the gate lines The b gate lines arranged in scanning order in the line are only electrically connected to one driving circuit module; If b is an odd number, the b connection lines connected to the b grid lines are distributed symmetrically with respect to the middlemost grid line arranged in the scanning order among the b grid lines; If b is an even number, the b connection lines connected to the b grid lines are symmetrical about the middle positions of the b/2th and (b+2)/2th lines arranged in the scanning order among the b grid lines distributed. 8 . The display device according to claim 1 , wherein 2≤m ₁ ≤n ₁ /2. 9. A method for driving a display device according to any one of claims 1-8, wherein: The methods include: In one scanning period, the _first driving circuit module provides scanning signals to n1 gate lines; After the first driving circuit module provides scanning signals to the n ₁ -m ₁ +1th gate line arranged in the scanning order among the n ₁ gate lines, the second driving circuit module is turned on; The second driving circuit module provides scanning signals to m ₁ −1 gate lines arranged last in a scanning order among the n ₁ gate lines. 10. The driving method according to claim 9, characterized in that, the at least two driving circuit modules further comprise a third driving circuit module, and the third driving circuit module is connected to the _third driving circuit module of the n3 gate lines arranged continuously. One end is electrically connected, and the output start control end of the third drive circuit module is electrically connected to the first gate line arranged in the scanning order among the n ₃ gate lines, and the signal of the third drive circuit module The output end is electrically connected to the remaining n ₃ -1 gate lines among the n ₃ gate lines; wherein, among the n ₃ gate lines, the first m ₂ gate lines arranged in the scanning order are connected to the n 3 gate lines Among the ₂ grid lines, the last m ₂ grid lines arranged in the scanning order are the same grid line, and 2≤m ₂ ≤n ₂ -m ₁ ; The method also includes: In one scan period, the second drive circuit module provides scan signals to n ₂ gate lines; After the second driving circuit module provides a scanning signal to the n ₂ -m ₂ +1th gate line arranged in the scanning order among the n ₂ gate lines, the third driving circuit module is turned on; The third driving circuit module provides scanning signals to the last m ₂ −1 gate lines arranged in a scanning order among the n ₂ gate lines. 11. driving method according to claim 9, it is characterized in that, described at least two driving circuit modules also comprise the 3rd driving circuit module, the signal output end of described 3rd driving circuit module is connected with the n ₃ consecutively arranged The first end of the gate line is electrically connected, and the output start control end of the third driving circuit module is electrically connected to the start control signal output end of the timing control board of the display device; wherein, the n ₂ gates The lines are arranged continuously with the n ₃ gate lines; The method also includes: In one scan period, the second drive circuit module provides scan signals to n ₂ gate lines; The initial control signal output terminal of the timing control board of the display device outputs a start signal to the output initial control terminal of the third drive circuit module; The third driving circuit module provides scan signals to the n ₃ gate lines.