TWI293450B - Display panel driving device for reducing crosstalk and driving method thereof - Google Patents

Description

12934i^2Qtwf.d〇c/g IX. Description of the Invention: [Technical Field] The present invention relates to an apparatus and method for driving a display panel, and more particularly to a display panel driver capable of reducing crosstalk Apparatus and method. [Prior Art] In order to enhance the display quality of the display panel, the polarity of the display panel drive signal is inverted. For example, a display panel of a thin film transistor liquid crystal display (TFT-LCD) uses liquid crystal as a material for controlling display. In order to avoid polarization of the liquid crystal, it is required to be driven by an alternating current to develop.

For example, line inversion, dot inversion, column inversion, and the like, various polarity inversion driving methods. FIG. 1 is a diagram showing a driving structure of a general liquid crystal display. Referring to the drawing, the source driver 110 and the gate driver (10) respectively output a plurality of ϋ drivers: number=number=plate 13. Corresponding data line and scanning 】 The source driver 110 is driven by a plurality of sources, and the gate driver 120 is also driven by a plurality of gates. Displaying a plurality of pixel units of the panel 13 (example, = sexual connection to the corresponding data line and the broom respectively according to the scanning signal in the scanning line, the u solid pixel early driving signal., the pixels in the Zhucunxian line, 2 It is a description of the reason why the water in the pixel unit is shown in Fig. 2, and the connection is in the same string. Please, as the pixel unit 231 and 2 are called, there is a pixel unit (for example, θ because of the arrival of the description, and at the same time' Twf.doc/g will have its internal switch (for example, switch 241 and this time, connected to the same broadcast button 91 Λ + 客士丁(turn on). For the library information Hou Tian, · Liang < all pixel units will be The corresponding Beca line (for example, the data line 221 $222 is stored in its internal fault capacitor Cst and the liquid crystal capacitor C ^ signal capacitor 4 is divided according to the potential difference between the two ends: angle two crystal and common voltage line There is parasitic electricity between the two = the number of the second pass: the common electricity " _ will be due to the information line of the data v bribes received by each data line number, if the common voltage of this liquid electricity & d lightly changed The voltage level is the same; the liquid plate 130 is a "normal white" type display panel. That is, the relationship between the voltage difference of the crystal capacitor and the second slope is small, so the change of the liquid crystal voltage to the second/day voltage has a great influence on the intermediate gray scale. Therefore, ^ a two %' is discussed for the change of the intermediate gray scale.

Ni: "There is a positive polarity for the liquid crystal capacitor to display "white" gray scale = voltage transmission and negative polarity voltage _w, positive polarity of "black" gray scale ^ and negative polarity electric power and positive polarity of intermediate gray scale The voltage is said to be at the level of the negative voltage - Μ. 129345^5_. Taking dot inversion as an example, Fig. 4A is a partial pixel unit matrix illustrating a conventional dot inversion driving display panel. Referring to Fig. 4A, for example, it is to be displayed that the background is an intermediate gray scale and the center has a black square. Turn on the scan line

In the pixel unit of SL1, the pixel drive nickname is transmitted to the turned-on pixel unit through the data lines DL1 DL DL12. Since the dot inversion technique is used, the single pixel unit of the scanning line SL1 is the positive polarity voltage +M of the intermediate gray scale, and the double pixel unit is the negative polarity voltage _M of the intermediate gray scale. Then, when the pixel unit of the scanning line SL2 is turned on, the pixel driving signal is transmitted to the turned-on pixel unit through the data lines DL1 to DL12, and so on. Fig. 4B is a timing chart showing the common voltage Vc 〇 m in the display panel of Fig. 4A. During the driving of the pixel units of the scanning lines SL1, SL2, SL5 and SL6, the positive and negative voltages of the positive gray voltage +M and the negative polarity voltage -M of the intermediate gray scale are mutually locked, because of the voltage The waveform of Vcom has little effect. Looking at the scan line su disk, the data lines DU to DL8 of the wide t/block transmit a large voltage: ..., the color "pixel drive signal" but the positive polarity of the "black" and the negative polarity voltage The private energy pin of the voltage VeQm has little effect on the waveform of the common voltage Vcom. " mutually offset-top pi is a part of the conventional point-inverted drive display panel, the pixel unit of the simple single line displays the middle gray scale, and the double early strips - the shell material displays "black"), and the black pixel in the center When the unit turns on the pixel unit of the scanning lines SL1 to SL6, the transmission is doc/g 12934^. Therefore, +Μ, a few pixels single 4" = a single pixel of the positive gray voltage scan line of the intermediate gray scale is two = 2 polarity voltage · Β; a few number of pixel units Α "爱备", 曰) The negative polarity voltage - Μ, the pixel unit of the double "$ color polarity voltage + Β; where the black square map is = Figure ^ ^ ' = \ and the negative polarity between the secret, due to the intermediate: = pixel unit period The energy is combined, so the common electric JJ voltage - (four) the common electric DL12 affects the negative wifi will be affected by the data line DL1 ~ pixel unit, because the intermediate gray 3 = ; L2 please 苈 Vcom light and energy far Less than Λ "= negative, the voltage of the common voltage is the same as the voltage of the common electricity, and the electric energy is the same as the electric power +B to the symmetry line DL1~DU2, and the electric door is Vc〇 m* will be funded and 乩4, due to the central area:; ";, rush. Then look at the scanning line 乩3 voltage _B to the common electricity a ν_^"; ^ generation voltage 咕 and negative

Vcom will generate a smaller negative pulse ^ 』 voltage ΐΐ ΐΐ ΐΐ ΐΐ 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 冲 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二Single two DL1 ~ DU8 and the pixel drive signal is transmitted to the image of SL5 and SL6 in the ^ ^ ^ line 丨, yang, pressure + M and negative (four) (four) on the total v said the positive polarity of the offset, so the same county嶋之# Combined energy phase (four) block, scan =::. Shadow:: large, positive polarity voltage + M, double number like sim = where is the intermediate gray level of the second t, t order of positive polarity voltage gamma ^ The common voltage—the negative voltage of the (5) black”-B is a large negative pulse of the common voltage Vcom. The other element is the negative polarity voltage of the intermediate gray level _M== voltage-M to the common voltage Vc〇m The combined energy is much smaller than the negative two-polarity voltage + B to the v_^ combined energy, and the common voltage %can will be affected by the data line DL1: DL12 during the period of the pixel unit of the SL line. Positive pulse. Central 曰. 〇, the longer the width of the block, the larger the pulse voltage difference △, the greater the crosstalk. The more the difference is =: sound display - showing quality. 12934S05twf.d〇c/g [Draft] The object of the present invention is to provide a display panel driving device for reducing crosstalk, and the timing controller provides different polarity control points to each source driving unit by means of a reverse gate. The pixel polarity of the same horizontal scanning line is neutralized as much as possible to avoid the coupling of the common voltage Vc by the polarity of the data line on the thin display panel, thereby achieving the effect of reducing crosstalk. ^, again - the purpose is to provide - a reduced crosstalk display panel drive = method 'fine by changing the polarity of the source drive unit to receive the polarity minus ' can make the same horizontal scan line pixel polarity as much as possible, In order to avoid the data sharing effect on the common voltage Vcom, the effect of reducing crosstalk can be achieved. Based on the above and other objects, the present invention provides a moving device for reducing crosstalk, which includes a plurality of source drive integrated circuits, open and kiss sequence controllers. Each of the source drive integrated circuits has a -polar terminal =; each == r determines the output of the pixel 2; the device operates in a sequence control (4) outputs multiple source drive integrated circuits, and outputs a polarity control signal To the anti-strict shell 2 to the end. The anti-social input terminal is electrically connected to the source of the part =: the polarity of the extreme determines the output of the pixel driving signal according to the polarity =:= and then converts the corresponding pixel data into the c element: 12934S^istwidoc/g board ^4 Reduce the display surface of crosstalk, and propose a display panel driver for reducing crosstalk. The source is two: yuan: - reverse gate and - timing controller. . Polarity determines the polarity of the pixel drive signals that are in the sub- and each of them according to their polar end. The operation/day sequence controller of the device outputs a plurality of pixel data to each source driving unit, and electrically generates a control signal to the input terminal of the reverse gate. The input end of the reverse gate is the polarity end of the source drive circuit of the private mountain ☆ 妾 part, and the reverse gate, and the voltage is connected to the polarity end of the other part of the source drive integrated circuit. = The Saint drive unit determines the output (4) 动 signal, polarity according to the polarity of its polarity terminal. After that, the source axis unit converts the connected pixel data into a pixel driving signal and outputs it. The invention further provides a display panel driving method for reducing crosstalk. The driving method of the panel is as follows. First, a polarity control signal is provided to the polarity end of the source driving unit of the knife, and then the polarity control signal is reversed to obtain a Inverting the polarity control signal and providing the reverse polarity control. The nickname to the polarity end of the drive unit of other parts. Each source=moving unit determines the output of the pixel driving signal according to its polarity end. Then, each of the plurality of source driving units outputs a pixel driving signal to drive the display panel. The invention adopts a structure in which the polarity control signals of the respective source driving units are changed, so that the polarity of the pixels on the same horizontal scanning line can be neutralized as much as possible on the display panel, thereby avoiding the crosstalk of the common voltage Vcom. Phenomenon and enhance the display. <5 twf.doc/g In order to make the above and other objects of the present invention, and the advantages and disadvantages of the present invention more obvious, the following preferred embodiments, together with the accompanying drawings, are as follows. [Embodiment] In order to explain the present invention more clearly, liquid crystal display panels are exemplified in the following embodiments. Those skilled in the art will be able to illuminate various display panels in accordance with the teachings of the spirit and embodiments of the present invention. • ® _7A is a circuit block diagram of a liquid crystal display panel driving device capable of reducing crosstalk according to the first embodiment of the present invention. Referring to FIG. 7A, the liquid crystal display panel driving device includes a source driving integrated circuit 7 〇丨 7 〇 8 , a reverse gate 710 timing control state 720, and a liquid crystal display panel 730. The timing controller 720 sequentially transfers the plurality of pieces of pixel data d to the source drive integrated circuits 708. The timing controller 720 further outputs the polarity control signal p〇L, and each of the source driving integrated circuits determines the polarity of the output pixel driving signal according to the polarity control signal received by the polarity terminal. In the present embodiment, the timing controller 720 supplies the polarity control signal POL to the polarity terminals of the source drive integrated circuits 7〇i to 7〇4 on the left half of the panel 730, and the source drive integrated circuit 7 on the right half. The polarity end of 〇5~7〇8 receives the inverted signal of the polarity control signal p〇L through the reverse gate 710 (ie, the inverted polarity control signal /p〇L). The source driving integrated circuits 7〇1 to 7〇8 convert the received pixel data into corresponding pixel driving signals, and each determines the polarity of the output pixel driving signal according to the §fL number of its polarity. The source driving integrated circuits 701 to 708 rotate a plurality of pixel driving signals while the liquid crystal display panel 730 is driven by 12 12934i^Qtwf.d〇c/g. Here, although the eight corpses in Figure 7 and the eight source drive integrated circuits, but the number of source drive integrated circuits, those skilled in the art can reduce their ^ not limited to 8 θ" according to their needs 7 C is the first embodiment to drive the liquid crystal display surface Ϊ 部分 partial pixel unit matrix by dot inversion. It is assumed that the liquid crystal display panel 730 疋 (four) white type display panel, that is, when the liquid crystal capacitor is not applied with a voltage, the highest rate is (The relationship between the transmittance and the electrical conductivity of the liquid crystal f

For example, as shown in Figure 3A). In Fig. 7B, +B and _B respectively indicate that the positive polarity voltage and the 贞polar voltage of the "black" gray scale are transferred to the pixel unit, and the damage and -M respectively represent the positive polarity voltage and the negative polarity voltage drive of the fiscal gray scale. The pixel unit. 7B is a driving technique of dot inversion, for example, to display a background color of Cs open (that is, a pixel unit of a single data line displays an intermediate gray scale, and a pixel unit of a double number of data lines displays "black"). There is a black square in the center. Please refer to FIG. 7A and FIG. 7B simultaneously. When the pixel unit of the scanning line SL1 is turned on, the source driving integrated circuit transmits the pixel driving signal to the image through the data lines DL1 to L) L16. Since the pixel unit is turned on, the dot inversion technique is used, so in the pixel unit of the scan line SL1, the data lines DU, DL3, DL5, and DL7 transmit the positive gray voltage +M of the intermediate gray scale to the corresponding pixel unit. The data lines DL2, DL4, DL6, and DL8 transmit the negative polarity voltage B of the "black" gray scale to the corresponding pixel unit. In addition, since the reverse gate 71 转换 converts the polarity control signal POL· into the inverted polarity control signal /p〇L and outputs it to the source driving integrated circuit 705 708, among the pixel units of the scan line SL1, the data lines DL9, 13 doc /g =: two? ? Transmitting the negative polarity voltage -M of the intermediate gray level to the corresponding pixel as early as 70, while the _ line diliq, Dm

The positive polarity voltage of the "black" gray scale is sent to the corresponding image H. The pixel cells of the scanning lines SL2 to SL8 are sequentially turned on ==:DU6 and the corresponding pixel driving is performed.

Japanese,: § Open the scanning unit SU ~ SL8 pixel unit in sequence: the same as 2:: the human pixel line DL1 ~ DU6 transmitted pixel drive signal ί ^ ί can be complementary, so the same on the display panel ^ The pixel polarity on the Ά line is neutralized as much as possible, and the crosstalk phenomenon caused by the light cooperation of the common voltage V_ and the data line is reduced, and the display effect is enhanced.

Fig. 7C is an example of a dot inversion driving technique, such as displaying a background with a midtone and a Cs Gpen square in the center. Please refer to FIG. 7A and FIG. 7C at the same time. Here, we take the scanning line in the middle as an example. When the pixel unit of the line SL3 is turned on, the source driving integrated circuits 7〇1 to 7〇8 transmit the pixel driving signals to the turned-on pixel unit through the data lines DL1 to DL16 ffij. Since the dot inversion technique is used, in the pixel unit of the scan line su, the data lines DL1, DL3, DL5, and DL7 transmit the positive polarity voltage +M of the intermediate gray scale to the corresponding pixel unit, and the data lines DL2 and DL4 The negative polarity voltage -m of the intermediate gray scale is transmitted to the corresponding pixel unit 'and DL6 and DL8 deliver the negative polarity voltage _bj of the "black" gray scale to the corresponding pixel unit. In addition, since the reverse gate 71〇 converts the polarity control signal POL into the inverted polarity control signal /p〇1 and outputs it to the source driver 12934Si^twf.doc/g integrated circuits 705 708 708, the pixel unit of the scan line SL3 In the data line DL9 DL11, DL13 and DL15, the negative polarity voltage M of the intermediate gray level is transmitted to the corresponding pixel unit, and the DL1 〇 and the positive polarity voltage +B of the "zero color" gray level are transmitted to the corresponding pixel unit. And the data 丄 DL14 and. DU6 transmits the positive polarity voltage + M of the intermediate gray level to the corresponding pixel unit. When the pixel units of the scanning lines SL4 to sl8 are turned on, the pixel driving signals corresponding to the secret lines DL1 to DL16 (four) are transmitted to the turned-on pixel unit. In other words, when the same scan line is turned on, the pixel drive signals transmitted by the data lines DU to DL16 can be complementary in the same gray level, so when the scans and lines SL1 to SL8 are sequentially turned on, the display panel can be made on the display panel. The polarity of the pixels on each horizontal scanning line is neutralized as much as possible, and the crosstalk phenomenon caused by the coupling of the common voltage VC〇m and the data line is reduced, so that the display effect is better due to the reduction of crosstalk. Fig. 8A is a circuit block diagram showing a liquid crystal display panel driving apparatus for reducing crosstalk according to a second embodiment of the present invention. Referring to Fig. 8a, the liquid crystal display panel driving device includes source driving integrated circuits 8〇1 to 8〇8, a reverse gate 810, a daily sequence controller 820, and a liquid crystal display panel 83A. In the present embodiment, the source drive integrated circuits 801 to 808, the reverse gate 81A, the timing controller 82A, and the liquid crystal display panel 83 are respectively opposite to the source drive integrated circuits 701 to 708 of the previous embodiment. The gate 710, the timing controller 72() and the liquid crystal display panel 730 are similar, except that the timing controller 82 provides the polarity control nickname POL to the polar terminals of the single source drive integrated circuits 8〇1 and 807. The inverted polarity control signal 15 doc/g /POL outputted by the reverse gate 810 is output to the polar terminals of the plurality of source drive integrated circuits 8〇2, 8〇4, 806 and 808. Here, although FIG. 8A only depicts eight source drive integrated circuits, the number of source drive integrated circuits is not limited to eight, and those skilled in the art can increase or decrease the number according to their needs. 8B and 8C show a partial pixel unit matrix of the liquid crystal display panel 830 driven by dot inversion in the second embodiment. It is assumed here that the liquid crystal display panel 83 is a "normal white" type display panel, that is, when the liquid crystal capacitor is not applied with a voltage, the light transmittance is the highest.

Fig. 8B is an example of a dot inversion driving technique, for example, a screen in which the background color is Cs open and the center has black squares. Referring to FIG. 8A and FIG. 8B simultaneously, when the pixel unit of the scanning line SL1 is turned on, the source driving integrated circuits 801 to 808 transmit the pixel driving signals to the turned-on pixel unit through the data lines dl1 to DU6. Since the dot inversion technique is used, in the pixel unit of the scan line SL1, the source drive integrated circuits 8〇1, 803, 805, and 807 pass the data lines DU, DL5, dL9, and DL13 to the positive gray voltage of the intermediate gray scale. +M is transferred to the corresponding pixel unit, and the negative polarity voltage Β of the "black" gray scale is transmitted to the corresponding pixel unit through the data lines DL2, DL6, DL10, and DL14. In addition, since the polarity control signal POL is converted into the inverted polarity control signal /p〇L, the source drive integrated circuit 観, 8G4, _ and the through data line such as ^^(3) and see (1) word intermediate gray The negative polarity of the order (4) is transmitted to the corresponding pixel unit, and the positive polarity of the "black" gray scale is transmitted to the corresponding prime unit through the data lines Du, dl8, and fU6. Then, according to the specification, when the scanning line (10)~. I2934§fludoc/g. is turned on sequentially, the corresponding driving signal is transmitted to the turned-on pixel unit through the data lines DL1 to DL16. , in other words, through the action of the reverse gate, the pixel drive signals transmitted by the data line yang ~ sink ^ are the same on the same - scan line - the polarity of the gray scale can be complementary, so in the scan lines SL1 ~ SL8, each The polarity of the pixels on a horizontal scanning line can be neutralized as much as possible, thus reducing the crosstalk phenomenon caused by the coupling of the common voltage Vcom and the data line, so that the crosstalk phenomenon can be reduced to enhance the display effect.曰 Figure 8C also uses the dot-reversal driving technique as an example. For example, the background color is midtone and the center has a Cs open square. Please refer to FIG. 8A and FIG. 8C at the same time. Here, we take the middle scan line SL3 as an example. When the pixel unit of the scanning line SL3 is turned on, the source driving integrated circuits 7〇1 to 708 transmit the pixel driving signals to the turned-on pixel unit through the data. Since the dot inversion technique is used, in the pixel unit of the scan line su, the source drive integrated circuits 801, 803, 805, and 807 pass the positive polarity voltage +M of the intermediate gray scale through the data lines DL1, DL5, DL9, and DL13. Transmitting to the corresponding pixel unit, transmitting the negative polarity voltage -M of the intermediate gray level to the corresponding pixel unit through the data lines DL2 and DL14 and transmitting the negative polarity voltage of the "black" gray level to the corresponding pixel through DL6 and DL10 unit. In addition, since the reverse gate 810 converts the polarity control signal POL into the inverted polarity control signal /p〇L, the source drive integrated circuits 802, 804, 806, and 808 pass through the data lines DL3, DL7, DL11, and DL15. The negative polarity voltage -M of the order is transmitted to the corresponding pixel unit, and the positive polarity of the "black" gray scale is 17 12934 excited by DL8 and DL12.岣 The middle pixel 1 is used as the pixel unit, and is transmitted to the corresponding pixel unit through the data line core and the positive polarity voltage +M of the sinking 16 n. When the pixel unit of the scanning lines SL4 to SL8 is turned on, the corresponding pixel driving_ is transmitted to the pixel being respected by itiD^DL16, and so on. In other words, when the same scan line is turned on, the data line called ~ the transmitted pixel drive signal can be complementary in the same-gray order polarity: the pixel polarity y of the same horizontal scan line on the display panel is It neutralizes as much as possible, thus reducing the crosstalk phenomenon caused by the common voltage v_ and the horse & and the display effect is enhanced. 9 is a circuit block diagram of a liquid crystal display panel driving apparatus capable of reducing crosstalk according to a third embodiment of the present invention. Referring to FIG. 9, the liquid crystal display panel driving device includes a reverse gate 91, a timing controller 畑, a liquid crystal display panel 930, and a source driving unit module 9〇1 to 9〇3. The source driving unit modules 901 to 903 may each be packaged as a source driving integrated circuit. Each of the source driving unit modules includes a plurality of repetitive driving units. For example, the source driving unit module 901 includes a source driving unit, wherein the f source driving units respectively drive the liquid crystal display panel 93〇. One of them & should be lean. . . Day: The sequence control H sequentially transfers a plurality of pixels f to each of the source drive unit modules 901 to 903, and the timing controller 920 also outputs a polarity control signal p〇L. The polarity control signal p〇L ^ is turned over and the reverse gate 910 is converted into an inverted polarity control signal /p〇L. The polarity control signal POL is supplied to a polarity terminal of a part of the source driving unit, and the inverted I29344fitwfdoc/g polarity control/PQL is provided to the polarity terminal 0 driving unit 9兀M of other partial hybrid driving units as an example. At least the latch circuit bit analog conversion 901-12 is included. The pixel data d is flash-locked in the corresponding timing in accordance with the 1_circuit 90U of the timing controller 920. The digital analog converter 90M2 converts the flashed pixel data into an analog signal. The source driving unit is based on the analog signal pixel crane signal generated by the digital analog converter 2. In addition, the source=drive unit 901·1 further drives the pixel of the liquid crystal display panel 930 through the data line according to the polarity of the signal (here, the polarity control POL). In FIG. 9, the other source driving units 9〇1_2, 9〇1_3, 9〇1_4 can have the same structure as 9G1-1, receive the pixel D from the timing controller, and output the pixel driving signal to the liquid crystal. The display panel 93〇. However, the difference between them is that the source driving units 9 〇 M, 9 〇 12 receive the polarity control signal POL, and the source driving units 9 〇 1_3, 9 〇 1_4 receive the portion = inverted polarity control signal / P0L. Therefore, in addition to the dot-inversion (four) material structure caused by the = stream drive, the data lines on the other side of the source drive unit are reversed in polarity, which results in the inversion of the polarity of each pixel unit. As a result, each line is reduced. The transmitted pixel drive signal is complementary in (5) - the gray level I. Therefore, when the scan lines are sequentially turned on, the polarity of the pixels on each horizontal sweep of the display panel can be neutralized as much as possible, thereby reducing the crosstalk generated by the common voltage Veom and the data line. 129345α twf.doc/g Elephant. To show that the background color is midtone and the center has a full surface of Cs, such as a square, it is the same as Figure 8C above. Once the "sequence" (4) H can provide different polarity control signals by the reverse gate, and these non-polarity control signals are combined to the polarity ends of the respective source drivers ^=, so that each secret, crane unit is on the display panel. Each of the lines has a non-sexual distribution, and the positive and negative performances of the horizontal=line on the display panel cancel each other, thereby reducing the crosstalk effect produced by the common Vc〇m. i Although the present invention has been better The embodiment discloses the above, but it is an invention, and any person skilled in the art can make some modifications and retouchings without departing from the spirit of the invention. Therefore, the application of the present invention is attached to the application. The definition of the scope of patents shall prevail. ', side [simple description of the figure] ^ Figure 1 is a diagram showing the driving structure of a general liquid crystal display. Fig. 2 is a diagram showing the water-crossing sound in a general pixel unit. The normal white shape shows the graph of the second voltage. The mosquito penetration rate and black" and the middle gray scale are positive / Fig. 3B is the voltage level of "white" and negative polarity. Part of the pixel of the element matrix (10) is shown in the display panel of Figure 4A, (4) (4)

Fig. 6B is a timing chart for explaining the waveform of the figure. ΎΣ9345^wf.d〇c/g Figure 5Α illustrates a partial meta-matrix of a display panel driven by dot inversion using a screen with a background color of Cs〇pen and a central block. f early Fig. 5B疋5 shows the common circuit waveform timing diagram in the display panel of Fig. 5A. i Worn Fig. 6A is a diagram showing a partial cell matrix of a display panel driven by dot inversion using a background in which the background color is midtone and the center has a & 〇 = block. In the display panel of the flying 6A, the common voltage vc〇m is shown in Fig. 7A as a circuit block diagram of a flip-flop driving device in accordance with the first embodiment of the present invention. The figure is a partial pixel unit matrix of a liquid crystal display panel of a dot inversion driving according to a first embodiment of the present invention, wherein a pattern having a ground color of Cs open and a black square at the center is a test picture. Fig. 7C is a partial pixel unit matrix of the dot-reverse driving liquid crystal display panel of the first embodiment of the present invention, wherein the background color is a middle gray scale, and the image is a CsGpen square. Fig. 8A is a view showing a liquid crystal block of a liquid crystal according to a second embodiment of the present invention. Fig. 8 shows a dot inversion of a second embodiment of the present invention. The driving liquid has a partial pixel unit matrix of the board, wherein the pattern of the background color is CS OF11 and the black square is the test picture. 21 12934i^Qtwf.d〇c/g FIG. 8C is the second implementation of the present invention. For example, a partial pixel unit matrix of a liquid crystal display panel driven by dot inversion is shown here as a middle gray scale, and the center is a plane of a Cs open square. FIG. 9 is a diagram illustrating a third embodiment according to the present invention. A circuit block diagram of a liquid crystal display panel driving device. [Main component symbol description] 110: source driver 120: gate driver 130: display panel 140: pixel unit 210: scan lines 221, 222: data lines 231, 232: pixels Units 241, 242: switches 701 to 708, 801 to 808: source drive integrated circuits 710, 810, 910: reverse gates 720, 820, 920: timing controllers 730, 830, 930: liquid crystal display panels 901 to 903 ·Source drive unit module 901-1~901-n : Source driving unit 901-11: Latch circuit 90M2 · Digital analog converters SL1 to SL8: Scan lines DL1 to DL18: Data line 22 '·doc/g POL : Polarity control signal / POL : Inverted polarity control signal D: Pixel data '·doc/g

twenty three

Claims (1)

1293 smoke twf.doc/g X. Patent application scope: i. A display panel driving device for reducing crosstalk, comprising: · multiple source driving integrated circuits for outputting a plurality of pixel driving signals to drive the display panel Each of the source driving integrated circuits further has a polarity end' each of the source driving integrated circuits respectively determining the polarity of the output pixel driving signals according to the polarity end thereof; a reverse gate' has an output terminal electrically connected to a portion of the polarity terminals of the source driving integrated circuits, and an input terminal of the reverse gate is electrically connected to other portions of the polarity terminals of the source driving integrated circuits; and a timing controller for outputting a plurality of pixel data to the source driving integrated circuits, and outputting a polarity control signal to the wheel-in terminal of the reverse gate, and each of the source driving integrated circuit circuits Converting the corresponding far pixel data into the pixel driving signals and outputting the same. The display panel is a liquid crystal display panel. The display panel is a liquid crystal display panel. 3. A display panel driving device for reducing crosstalk, wherein the board has a plurality of data lines, and the display panel driving device comprises: 'no multiple source driving units, and the output ends are respectively electrically connected to some data lines. The display panel is driven by one of the 'rounds' and the pixels St: each of the source driving units has two, each of which is in turn according to its polarity end ^ (four) The polarity of the pixel driving signal; 疋24 I29345fiud 'unit:=end=electrical connection to a part of the source driving 输m sister gate of the input terminal is electrically connected to the polarity end of other depolarization driving units And the moving unit of the knife is like 4:: for the corresponding two moving devices, the display panel of the device is driven by the 5.-Qing 纟 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The pole 'driver unit determines the polarity of the pixel drive signal according to its polarity end. The display panel drive method package polarity 2 is used for the polarity control information section - part of the secret drive unit number; 3 polarity control gamma Phase, to obtain - trans off control information mentioned π ί, offering phase polarity control signal to the plurality of other portions of the source electrode of the driving element of polar end early. 6 The display panel driving method for reducing crosstalk according to claim 5, wherein the display panel is a liquid crystal display panel. 25