TWI410946B - Driving scheme for multiple-fold gate lcd - Google Patents

Abstract

A driving scheme for a multiple-fold gate liquid crystal display (LCD), such as a double gate LCD, is disclosed. A forward driving sequence is provided to drive bank A and bank B of pixel electrodes in a number of rows. Subsequently, a reverse driving sequence is obtained to drive the bank A and the bank B in a number of neighboring rows.

Description

Driving mechanism of multi-gate liquid crystal display

The present invention relates to a liquid crystal display (LCD), particularly a double gate liquid crystal display, to effectively reduce vertical line defects.

This application claims domestic priority based on the prior application (Application No. 97124182, Application Date 2008/6/27, title of the invention "Drive Mechanism of Multi-Gate Liquid Crystal Display").

Liquid crystal displays (LCDs) typically consist of pixel cells (or simply pixels) arranged in a matrix of rows and columns. Each pixel includes a thin film transistor (TFT) and a pixel electrode, which are collectively formed on a substrate (or panel). The gates of the thin film transistors in the same column are connected together by a gate line and then controlled by a gate (or scan) driver. The sources of the thin film transistors in the same row are connected together by a source line and then controlled by a source (or data) driver. A common electrode is formed on another substrate (or panel). A liquid crystal (LC) is sealed between the pixel electrode substrate and the common electrode substrate, and each pixel is displayed by controlling a voltage difference between the two substrates. In order to avoid the characteristic degradation of the liquid crystal layer due to the action of a single-direction electric field for a long time, an inversion driving mechanism (such as column inversion or dot inversion) is usually used to pull up or pull down the common electrode for the period. The electric field applied by the reversal of sex.

The gate driver and the source driver are respectively composed of a plurality of driver integrated circuit (IC) chips. Since the price of the source driver IC chip is generally higher than that of the gate driver IC chip, if the number of source driver IC chips can be reduced (even if the number of gate driver IC chips must be increased), the entire liquid crystal display can be reduced. cost. In view of this, there is a proposal for a dual gate liquid crystal display architecture in which the number of source drive IC chips (or source lines) is halved, and the number of gate drive IC chips (or gate lines) is reduced. Then double. Overall, the cost of a dual-gate liquid crystal display will be lower than that of a conventional liquid crystal display. When operating a dual-gate liquid crystal display, in a horizontal scanning period (commonly referred to as 1H), the thin film electro-crystalline system connected to the same source line is turned on instead of the thin film electro-crystal like a conventional liquid crystal display. The system is open at the same time.

However, since the resistance-capacitance (RC) load on the common electrode causes the left and right adjacent pixels to be unbalanced during charging and discharging, the double gate display causes vertical stripes defects when displayed. Such vertical line defects are also discussed in other documents, for example, U.S. Patent Application Publication No. 2006/0164350, the entire disclosure of which is incorporated herein by reference.

Therefore, it is urgent to propose a novel driving mechanism of a double-gate liquid crystal display to effectively reduce or even eliminate vertical line defects.

In view of the above, one of the objects of the present invention is to provide a novel driving mechanism for a dual gate liquid crystal display to effectively reduce or eliminate vertical line defects to improve display quality.

Embodiments of the present invention provide a driving mechanism of a multiple-fold gate liquid crystal display such as a dual gate liquid crystal display. The pixel electrode group A and the group B of the plurality of columns are driven in the forward driving order. Next, the pixel electrode group A and the group B of the adjacent columns are driven in the reverse driving order. The charge imbalance caused by the electrode voltage jitter can effectively reduce the vertical line defects by the visual average effect in the spatial field and the temporal field.

According to another embodiment of the present invention, each column of an odd-order frame is sequentially driven so that every two columns (or every other column) reverses the driving order of the pixel groups; and sequentially drives an adjacent Each column of the sequence frame is inverted so that the driving order of the pixel groups is reversed every two columns (or every other column). According to one of the features of the embodiments of the present invention, for the corresponding (same) columns of the odd-order frame and the adjacent even-order frame, the driving order is reversed.

The first A diagram shows a double/dual gate liquid crystal display (LCD) 100 comprising pixel electrodes 10 arranged in the form of a matrix of rows and columns. The first B diagram shows a partial detailed circuit diagram of the first A diagram. In each pixel unit (or simply a pixel), each pixel electrode 10 corresponds to a switching element such as a thin film transistor (TFT) 12. Adjacent thin film transistors (eg, 12A and 12B) located in the same column are commonly connected to the same source line (eg, S1), which is driven by the source driver 14; and thin film transistors located in adjacent rows (eg, 12A and The source of 12B) is connected by a shared source line (S1). Part of the thin film transistors 12 in the same column (for example, the odd-order thin film transistors of the first column) are connected together by a gate line (for example, G1) and driven by the gate driver A (16); Another portion of the thin film transistor 12 (e.g., the first-row even-film transistor of the first column) is connected together by another gate line (e.g., G2) and is driven by the other gate driver B (18). The two gate lines (eg, G1 and G2) form a gate line group for scanning control of adjacent pixel columns. In the first A diagram, the dual gate liquid crystal display 100 has a bilateral gate driver A/B (16/18) which are respectively disposed at the edges of both sides of the pixel; however, this gate driver A/B (16/18) ) can also be combined into a single gate driver. For convenience of explanation, the odd-order thin film transistors and pixel electrodes in the same column are called group (BANK) A, and the even-order thin film transistors and pixel electrodes in the same column are called group B. The timing controller (T-con) 20 is used to control the operation of the gate drivers A/B (16/18) and the source driver 14.

The first C diagram shows the operational waveform of the first A diagram. When the horizontal sync signal HS changes from a logic high level ("1") to a logic low level ("0"), a horizontal scan period is initiated, which is commonly referred to as a 1H period. In this 1H cycle, Group A and Group B are sequentially activated, and their type is AB-AB-AB-AB. Thereby, the odd-order pixel electrode and the even-sequence electrode are sequentially activated, and the image data is received from the source driver 14 via the source lines S1-S6. This driving pattern is repeated, sequentially driven from the first gate line G1 to the last gate line (G12 as shown in the first C). Thereby, the gate lines G1-G12 of the dual gate display will be in the order shown in the first D diagram (ie, 1-2-3-4-5-6-7-8-9-10-11- 12) Being driven. In the first C picture, the phase (or polarity) of the common electrode POL is inverted every cycle to achieve column inversion, which causes the polarity of the scan lines in the frame to be reversed in sequence. And the polarity of the same scan line of different frames is also reversed in order. For example, as shown in the first E diagram, when the first scan line (Line1) is positive polarity ("+"), the second scan line (Line2) located in the same frame is negative polarity ("-"). Furthermore, for the same scan line of the adjacent frame, the polarity is also reversed in order. For example, as shown in FIG. E, when the first scan line (Line1) of the first frame (frame1) is positive ("+"), the first scan line (Line1) located in the adjacent frame (frame2) ) is negative polarity ("-").

For the double-gate liquid crystal display with the first C-column inversion, the voltage of the common electrode (Vcom) will toggle in each horizontal scanning period (that is, from a logic high level to a logic low level, or From the logic low level to the logic high level). Since the resistance-capacitance (RC) load of the common electrode affects the slew rate of the common electrode voltage, the common electrode voltage cannot be stabilized in the first half of the horizontal scanning period, resulting in the pixel electrode (10A, 10B, first B-picture). The charge and discharge charges of the capacitor are unbalanced, so the charge between adjacent pixels will be different. Therefore, the double gate display causes vertical stripes defects when displayed.

The first F diagram shows the waveform of the output image signal (SD-Out) of the source driver. In the first horizontal scanning period in the figure, the (charge) settling time st1 of the odd-order pixel (ie, group A) signal is smaller than the (charge) of the even-order pixel (ie, group B) signal. Stabilization time st2. Therefore, the sample value of the group A pixel may be lower (ie, darker) than the sample value of the group B pixel. In the second horizontal scanning period in the figure, the (discharge) stabilization time of the group A pixel signal is also smaller than the (discharge) stabilization time of the group B pixel signal. Therefore, the sample value of the group A pixel may also be lower (ie, darker) than the sample value of the group B pixel. As mentioned above, such a phenomenon of charge and discharge imbalance is likely to cause vertical line defects.

The second A diagram shows the operational waveform of the double gate liquid crystal display according to the first embodiment of the present invention. Although the present specification takes a dual gate liquid crystal display as an example, the present invention (with slight modification or modification) can be applied to other types of liquid crystal displays, such as a triple gate liquid crystal display, a quadruple gate liquid crystal display, or more. A multi-fold gate liquid crystal display. The second B diagram shows the driving sequence waveform of the second A gate G1-G12. In the present embodiment, the driving order of the gate lines G1-G12 of the double gate liquid crystal display is 1-2-3-4-6-5-8-7-9-10-11-12. The second C-picture shows the polarity of the common electrode of the double-gate liquid crystal display of the second A. Compared with the first C-first E map, the group A and the group B of the present embodiment are sequentially activated, and its type is AB-AB-BA-BA (and the first C-first E) The driving type of the figure is AB-AB-AB-AB). In other words, for every two scan lines, the drive pattern will be reversed (eg, from forward AB to reverse BA, or from reverse BA to forward AB). Thereby, the gate line of the double gate liquid crystal display will be in the order shown in the second B (ie, 1-2-3-4-6-5-8-7-9-10-11-12) driven. Although the present embodiment reverses the driving pattern by every two scanning lines, the present invention can be modified to reverse the driving pattern once for each scanning line or every three scanning lines.

The line marked with a slash in the second C diagram indicates that the pixel is unbalanced due to the jump of the common electrode voltage. In this embodiment, in the same frame (or in the spatial domain), scan lines having the same polarity have opposite drive order patterns. For example, in the first frame (frame1), the first scan line (Line1) and the third scan line (Line3) have the same polarity ("+"), and therefore, the driving order type of the first scan line (Line1) The state (AB) will be opposite to the drive sequence type (BA) of the third scan line (Line3). In addition, in different frames (or in the same temporal field), scan lines of the same polarity have opposite drive order patterns. For example, the first scan line (Line1) of the first frame (frame1) and the first scan line (Line1) of the third frame (frame3) have the same polarity ("+"), and therefore, the first frame ( The driving sequence type (AB) of the first scanning line (Line1) of frame1) is opposite to the driving sequence type (BA) of the first scanning line (Line1) of the third frame (frame3). Therefore, on average, the probability that each pixel is subjected to the common electrode voltage jitter will be approximately the same, and therefore, the difference in charge received by each pixel will be the same. For example, for the first pixel (R1) of the first scan line (Line1), it has a "+" polarity in the first frame (frame1) and is subjected to a voltage jump of the common electrode; the pixel is in the second frame (frame2) In the middle of the "-" polarity and subject to the voltage of the common electrode; the pixel is "+" in the third frame (frame3) but not subjected to the voltage of the common electrode; the pixel is in the fourth frame (frame4) The middle is "-" polarity but is not subjected to the voltage jump of the common electrode. Therefore, as a whole, the human eye will not perceive vertical line defects. In this embodiment, the driving sequence type and control of the pixel group (BANK) can be controlled by the timing controller (T-con) 20 (first A picture) or the gate driver A/B (16/18). The polarity of the common electrode POL is reversed.

The third A diagram shows the operational waveform of the double gate liquid crystal display according to the second embodiment of the present invention. The third B diagram shows the driving sequence waveform of the third A gate G1-G12. In the present embodiment, the driving order of the gate lines G1-G12 of the double gate liquid crystal display is 1-2-3-4-6-5-8-7-9-10-11-12. The third C-picture shows the polarity of the common electrode of the double-gate liquid crystal display of the third A. In the present embodiment, the polarity of the common electrode POL is arranged to obtain dot inversion (rather than column inversion). In other words, the polarity of the common electrode POL of one pixel is opposite to the adjacent pixel of the same frame. Furthermore, the polarity of the common electrode POL of one pixel in one frame is also opposite to the polarity of the common electrode POL of the same pixel of the adjacent frame. In the present embodiment, the polarity of the common electrode POL is changed at the midpoint of the horizontal scanning (that is, at a time point of approximately 1/2*H). Compared with the second A map - the second C map, the driving type of the group A and the group B of the present embodiment is also AB-AB-BA-BA. In other words, the drive pattern is reversed every two scan lines (for example, from AB to BA, or from BA to AB). Thereby, the gate line of the double gate liquid crystal display will be in the order shown in the third B (ie, 1-2-3-4-6-5-8-7-9-10-11-12) driven.

The line marked with a diagonal line in the third C diagram indicates that the pixel is unbalanced due to the common electrode voltage jitter. According to the present embodiment, each pixel has a visual average effect regardless of whether it is in the spatial field or the temporal field. For example, in the spatial domain (ie, in the same frame), for the first frame (frame1), the first pixel (R1) of the first scan line (Line1) and the third scan line The first pixel (R1) of (Line3) is visually averaged. Furthermore, in the temporal domain (ie, in different frames), the first scan line (Line1) of the first frame (frame1) and the first scan line of the third frame (frame3) (Line1) for visual averaging. Therefore, as a whole, the human eye will not perceive vertical line defects.

According to the driving mechanism of the above embodiment, since each pixel in the dual gate liquid crystal display is substantially identical in probability of being subjected to the common electrode voltage jitter, or each pixel has a visual average in the spatial field and the temporal field. The effect is therefore effective in reducing or even eliminating vertical line defects.

Figure 4A shows a (simplified) pixel array of adjacent two frames of the dual gate liquid crystal display of the third embodiment of the present invention. The blocks in the drawing represent each pixel, and the numbers in the blocks represent the numbers of the gate lines that control the pixels (gate lines G1-G8 in this example). The arrows in the drawing indicate the driving order of the pixel group.

In this embodiment, the driving order of the odd-order frame is 1→2→3→4→6→5→8→7, and since the driving order is connected to be a “Z” or “anti-Z” font, This embodiment is also referred to as a "Z-type" drive. The driving order of the even-order frame is 2→1→4→3→5→6→7→8, and the driving sequence is also driven by “Z-type”. In other words, the pixel group of this embodiment is changed once every two columns. For example, taking the odd-order frame of the fourth A picture as an example, the driving order of the first and second columns is A→B, and the driving order of the third and fourth columns is the reverse B→A. According to this principle, every two columns transform (reverse) the driving order of its pixel groups. As for the even-order frame, the driving order of the first and second columns is B→A, and the driving order of the third and fourth columns is reverse A→B.

Another feature of this embodiment is that the driving order of the same column of pixels of adjacent frames is reversed. For example, the first column of the odd-order frame of the fourth A-picture is driven in the order of A→B, whereas the first column of the (same) first-order frame is transformed (reverse) to B→A. . The aforementioned driving mechanism of the present embodiment can be combined with various inversion techniques such as line inversion or dot inversion.

The fourth B diagram shows the display state of the pixel array of the fourth A diagram. Among them, the circle drawn by the diagonal line represents the pixel with a shorter stabilization time (ie, darker), and the circle of the blank represents the pixel with a longer stabilization time (ie, brighter). According to this embodiment, in the spatial field (that is, in the same frame), the pixels appearing in the first and second columns can be visually averaged with the pixels appearing in the third and fourth columns. . Furthermore, in the temporal domain (ie, in different (adjacent) frames), pixels appearing in the same column of the odd-order frame and the even-ordered frame can also be visually produced. average. Therefore, as a whole, the human eye will not perceive vertical line defects.

Figure 5A shows a (simplified) pixel array of adjacent two frames of the dual gate liquid crystal display of the fourth embodiment of the present invention. The blocks in the drawing represent each pixel, and the numbers in the blocks represent the numbers of the gate lines that control the pixels (gate lines G1-G8 in this example). The arrows in the drawing indicate the driving order of the pixel group.

In this embodiment, the driving order of the odd-order frame is 1→2→4→3→5→6→8→7, and since the driving sequence is connected to be a “bow” type or an “anti-bow” type, This embodiment is also referred to as a "bow type" drive. The driving order of the even-order frame is 2→1→3→4→6→5→7→8, and the driving sequence is also driven by the “bow”. In other words, the pixel group of this embodiment is changed once every other column. For example, taking the odd-order frame of the fifth graph as an example, the driving order of the first column is A→B, the driving order of the second column is B→A, and the driving order of the third column is A→B, The driving order of the four columns is B→A. According to this principle, each column transforms (reverses) the driving order of its pixel groups. As for the even-order frame, the driving order of the first column is B→A, the driving order of the second column is A→B, the driving order of the third column is B→A, and the driving order of the fourth column is A→B. .

Another feature of this embodiment is that the driving order of the same column of pixels of adjacent frames is reversed. For example, the first column of the odd-order frame of the fifth graph A has a driving order of A→B, whereas the first column of the (same) first-order frame is transformed (reverse) to B→A. . The aforementioned driving mechanism of the present embodiment can be combined with various inversion techniques such as column inversion or dot inversion.

The fifth B diagram shows the display state of the pixel array of the fifth A diagram. Among them, the circle drawn by the diagonal line represents the pixel with a shorter stabilization time (ie, darker), and the circle of the blank represents the pixel with a longer stabilization time (ie, brighter). According to this embodiment, in the spatial domain (i.e., in the same frame), the pixels appearing in the first column can be visually averaged with the pixels appearing in the second column. Furthermore, in the temporal domain (ie, in different (adjacent) frames), pixels appearing in the same column of the odd-order frame and the even-ordered frame can also be visually produced. average. Therefore, as a whole, the human eye will not perceive vertical line defects.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; all other equivalent changes or modifications which are not departing from the spirit of the invention should be included in the following Within the scope of the patent application.

100. . . Double gate liquid crystal display

10, 10A, 10B. . . Pixel electrode

12, 12A, 12B. . . Switching element (thin film transistor)

14. . . Source driver

16. . . Gate driver A

18. . . Gate driver B

20. . . Timing controller

S1. . . Source line

G1-G12. . . Gate line

HS. . . Horizontal sync signal

BANK. . . Pixel group

POL. . . Common electrode

SD-Out. . . Source driver output image signal

St1. . . (short) settling time

St2. . . (long) settling time

The first A picture shows a dual gate liquid crystal display.

The first B diagram shows a partial detailed circuit diagram of the first A diagram.

The first C diagram shows the operational waveform of the first A diagram.

The first D-picture shows the driving sequence of the first C-gate line.

The first E diagram shows the polarity of the common electrode of the dual gate liquid crystal display.

The first F diagram shows the waveform of the output image signal of the source driver.

The second A diagram shows the operational waveform of the double gate liquid crystal display according to the first embodiment of the present invention.

The second B diagram shows the driving sequence waveform of the gate of the second A diagram.

The second C-picture shows the polarity of the common electrode of the double-gate liquid crystal display of the second A.

The third A diagram shows the operational waveform of the double gate liquid crystal display according to the second embodiment of the present invention.

The third B diagram shows the driving sequence waveform of the gate of the third A diagram.

The third C-picture shows the polarity of the common electrode of the double-gate liquid crystal display of the third A.

Figure 4A shows a pixel array of adjacent two frames of a dual gate liquid crystal display of a third embodiment (Z-type drive) of the present invention.

The fourth B diagram shows the display state of the pixel array of the fourth A diagram.

Fig. 5A is a view showing a pixel array of adjacent two frames of the double gate liquid crystal display of the fourth embodiment (bow drive) of the present invention.

The fifth B diagram shows the display state of the pixel array of the fifth A diagram.

HS. . . Horizontal sync signal

BANK. . . Pixel group

POL. . . Common electrode

Claims (27)

A driving method of a liquid crystal display, each column of the liquid crystal display having at least two pixel electrode groups sequentially driven in a horizontal scanning period, the method comprising: driving the first column in the first driving sequence a pixel electrode group; and driving the second column of the two pixel electrode groups in a second driving sequence, wherein the second driving sequence is different from the first driving sequence; wherein the first column and the second column are different Frame. The driving method of the liquid crystal display according to claim 1, further comprising performing line inversion for spatially and temporally selecting polarities of adjacent columns of common electrodes ( Temporal) The reversal of the field. The driving method of the liquid crystal display according to claim 2, wherein the first column and the second column have the same polarity. The method for driving a liquid crystal display according to claim 1, further comprising dot inversion for inverting a polarity of a common electrode of adjacent pixels in a spatial domain and a time domain. The method of driving a liquid crystal display according to claim 4, wherein the polarity of the common electrode is changed at a midpoint of the horizontal scanning period. A driving method for a dual gate liquid crystal display, comprising: providing a horizontal synchronization signal to initiate a horizontal scanning period; providing a forward driving sequence for driving group A and group B of pixel electrodes in a plurality of columns; and reversing the The forward driving sequence is used to obtain a reverse driving order for driving group A and group B of pixel electrodes in a plurality of adjacent columns; wherein the above driving sequence is reversed every two columns or two frames. The driving method of the double gate liquid crystal display device according to claim 6, wherein the sequence of the forward driving sequence and the reverse driving sequence are in the same frame. The driving method of the double gate liquid crystal display device of claim 6, wherein the sequence of the forward driving sequence and the reverse driving sequence are located in different frames. The driving method of the double gate liquid crystal display device according to claim 6 of the patent application scope further includes performing column inversion to perform spatial fields of polarities of adjacent columns of common electrodes. And the reversal of the temporal field. The driving method of the double gate liquid crystal display according to claim 9, wherein the first column of the forward driving sequence and the second column of the reverse driving sequence have the same polarity. The driving method of the double gate liquid crystal display device of claim 6, further comprising performing dot inversion for inverting the polarity of the common electrode of the adjacent pixels in the spatial domain and the time domain. The driving method of the double gate liquid crystal display according to claim 11, wherein the polarity of the common electrode is changed at a midpoint of the horizontal scanning period. A driving method of a dual-gate liquid crystal display, each column of the dual-gate liquid crystal display has a two-pixel group, which is sequentially driven in a horizontal scanning period, the method comprising: sequentially driving an odd-order frame Each column, where every two columns reverses the driving order of the pixel groups; and Driving each column of an adjacent even-order frame sequentially, wherein every two columns reverses the driving order of the pixel group; wherein, for the odd-order frame and the adjacent even-order frame Corresponding columns, the driving order is reversed. The driving method of the double-gate liquid crystal display device according to claim 13, wherein the odd-order frame and the even-order frame are subjected to column inversion. The driving method of the double-gate liquid crystal display device of claim 13, wherein the odd-order frame and the even-order frame are dot inversion. A driving method of a dual-gate liquid crystal display, each column of the dual-gate liquid crystal display has a two-pixel group, which is sequentially driven in a horizontal scanning period, the method comprising: sequentially driving an odd-order frame Each column, wherein every other column reverses the driving order of the pixel group; and sequentially drives each column of an adjacent even-order frame, wherein every other column reverses the driving order of the pixel group Wherein, for the corresponding sequence of the odd-order frame and the adjacent corresponding frame, the driving order is reversed. The driving method of the double-gate liquid crystal display device of claim 16, wherein the odd-order frame and the even-order frame are subjected to column inversion. The driving method of the double gate liquid crystal display device of claim 16, wherein the odd-order frame and the even-order frame are dot inversion. A driving device for a multiple-fold gate liquid crystal display, each column of the liquid crystal display having at least two pixel electrode groups, the device comprising: a providing device for providing a forward driving sequence to the at least two a pixel electrode group; an inverting device for reversing the forward driving sequence; and at least one gate driver for driving the plurality of pixel electrodes in turn according to the forward driving sequence and the reverse driving sequence. The driving device of the multi-gate liquid crystal display device of claim 19, wherein the providing device is included in a timing controller or a gate driver. The driving device of the multi-gate liquid crystal display device of claim 19, wherein the inverting device is included in a timing controller or a gate driver. The driving device of the multi-gate liquid crystal display device of claim 19, further comprising performing line inversion for spatially matching the polarity of the common electrode of the adjacent column. And the reversal of the temporal field. The driving device of the multi-gate liquid crystal display device of claim 19, further comprising dot inversion for inverting the polarity of the common electrode of the adjacent pixels in the spatial domain and the time domain. A dual-gate liquid crystal display comprising: a plurality of pixel electrodes arranged in a matrix of rows and columns, each column having a group of two pixel electrodes; a device for providing a forward driving sequence to the group of two pixel electrodes; The step of providing a reverse driving sequence to the two pixel electrode groups; and at least one gate driver for driving the plurality of pixel electrodes in turn according to the forward driving sequence and the reverse driving sequence; Wherein, each time two or two frames are passed, the plurality of columns are driven according to the forward drive order or the reverse drive order. A dual-gate liquid crystal display, comprising: a pixel array, each column having a two-pixel group, sequentially driven in a horizontal scanning period; a source driver for providing image data to the pixel array, wherein Adjacent pixels in the same column share a source line, which is driven by the source driver; and a gate driver sequentially drives each column of an odd-order frame, wherein every second column is a pixel group The driving sequence is reversed; and each column of an adjacent even-order frame is sequentially driven, wherein every two columns reverses the driving order of the pixel group; wherein, for the odd-order frame and phase The corresponding column of the adjacent order frame of the neighbor has the driving order reversed. The double-gate liquid crystal display according to claim 25, wherein the odd-order frame and the even-order frame are subjected to column inversion. The double-gate liquid crystal display device of claim 25, wherein the odd-order frame and the even-order frame are dot inversion.