TWI400684B - Liquid crystal display and driving method thereof for motion compensation - Google Patents

Description

Dynamic picture compensation liquid crystal display and driving method thereof

The invention relates to a liquid crystal display with dynamic picture compensation and a driving method thereof, in particular to a liquid crystal display using a dynamic image compensator for compensating dynamic pictures.

In the prior art, the display mode of the liquid crystal display is a Hold Type, that is, it is ideal that the brightness of one pixel in one screen is maintained consistently. Fig. 1A is a graph showing the relationship between the driving voltage Vd applied to the pixel and the time t in accordance with the gray scale value. Assuming that a pixel is at each of the picture times T1, T2, and T3, the displayed grayscale values are 34, 100, and 30 grayscales, respectively, and each corresponds to a driving voltage. Fig. 1B is a graph showing the relationship between the luminance L of the pixel and the time t according to the driving voltage of Fig. 1A. The brightness line 21 is shown as the brightness that the pixel should ideally exhibit in accordance with the driving voltage Vd. In fact, since the reaction speed of the liquid crystal molecules is smaller than the speed at which the electric field changes, it takes a reaction time to reach the target brightness. The brightness line 22 is a change in brightness of the actual pixel according to the driving voltage Vd. Since the reaction speed of the liquid crystal molecules of the pixels is not fast enough, when displaying the dynamic picture, the gray scale values required for each picture are different, and the liquid crystal molecules need to be rotated in each picture, if not able to reach the desired image in one picture. The gray scale displayed will cause the gray scale to be displayed incorrectly, which will affect the display quality. In order to solve the above problems, in addition to using liquid crystal molecules with a faster reaction speed, it can also be solved by an appropriate driving design. In general, after the image gray-scale signal is input, a gray signal modulator can be used to improve the image sticking caused by the slow response of the liquid crystal molecules. As shown in FIG. 2, it is a schematic diagram of a functional structure of a general liquid crystal display, which mainly includes a gray-scale signal conditioner 110 for receiving and adjusting gray-scale data signals, and a timing controller 120 for controlling signal synchronization and display. Timing; a data driver 130 for adjusting the adjusted gray level signal The material is converted into a corresponding data voltage, and an image signal is output; a scan driver 140 is configured to sequentially provide the scan signal; and a liquid crystal display panel 150 includes a plurality of scan lines 160 for transmitting the scan signals; The data line 170 intersecting the scan lines 160 is used to transmit the image signal; and a pixel matrix is formed by the scan lines 160 and the area surrounded by the data lines 170. As shown in FIG. 2, the gray-scale signal conditioner is used to adjust the gray-scale signal data of the original image to speed up the reaction speed of the liquid crystal molecules, and then output the adjusted gray-scale signal data to the driving circuit of the liquid crystal display. To provide the appropriate data voltage to each pixel of the LCD panel to achieve the correct color or brightness of the correct image.

As shown in Figure 3, it is the basic operating principle of a traditional gray-scale signal conditioner. It mainly includes an image grayscale signal data input terminal 210 for receiving current picture data; a frame memory 220 for storing grayscale signal data of the previous picture; a picture memory controller 230 For controlling the read/write operation of the frame memory 220, a signal converter 240 is configured to input the second picture data _Fn-1 and the current picture data _Fn , and compare and compare the voltage of the image The signal data is appropriately adjusted to obtain a compensation picture data C _n . Please refer to Figures 4A and 4B, which show how to use the compensation data signal to correct the original image signal data to accelerate the liquid crystal reaction speed. It can be seen from Fig. 4A that when the original image signal (V _o1 ~ V _o5 ) is applied to the liquid crystal panel, since the reaction speed of the liquid crystal molecules is too slow, the output image brightness cannot reach a predetermined brightness within one picture time. However, as shown in FIG. 4B, by applying an appropriate compensation data signal (V _c1 ~ V _c5 ) correction, the output image brightness can be raised to a level corresponding to the input image data within one picture time, thereby being effective. Improve the gray scale display caused by the slow response of the liquid crystal molecules turning. In general, in order to improve the efficiency of calculating the compensation voltage by the signal converter processing image data, the pre-designed Look-Up Table is usually used, and the processing speed is improved by the look-up table method.

However, even if the reaction time of the liquid crystal molecules is zero, the phenomenon of smear (Blur) will occur, resulting in a decrease in the quality of the animation. The main reason is that the liquid crystal display is a hold type display device, and each pixel of the display device continuously displays a gray scale in a frame time. For example, as shown in FIG. 5A, an object, such as a 2*2 pixel, is located at position 201 at T1 and moved to position 202 at T2. When the human eye observes this moving object, it will automatically trace the moving trajectory. See Figure 5B, where the trajectories P1, P2, P3, and P4 indicate the upper edge of the object and the left and right adjacent pixels are observed from T1 to T2. traces of. Assuming that the gray level of each pixel in the object is 128, and the rest of the picture is 0 gray scale, the tracks P1, P2, P3 and P4 and their corresponding normalized luminance can be expressed as Figure 5C. In the figure, 205 is a human eye to observe the normalized brightness perceived by the four pixels in the continuous picture T1 and T2 time. 207 indicates the normalized brightness that should be exhibited when the human eye traces the movement trajectory of the four pixels. In this case, the human eye will not feel the phenomenon of smear (Blur).

Therefore, in the prior art, in order to improve the Blur phenomenon caused by the display characteristics of the Hold type liquid crystal, there are two methods currently used: one is an Impulse type technique, and the other is a method. To present image data for motion compensation technology, the following two techniques can theoretically be used to achieve the purpose of Impulse type technology: (1) inserting black images into continuous image frames; (2) backlighting Insert a black screen signal to make the backlight blink. The advantage of using the Impulse type technique is that the circuit is simple, but the disadvantage is that it causes flicker. The application of motion compensation technology has the advantage that flicker does not occur, but the disadvantage is that the circuit is complicated. The latter's motion compensation method will increase the complexity of image signal processing, and must be matched with expensive and complicated hardware to meet the low cost requirements of general mass production.

For the sake of the job, the present invention has invented the "dynamic picture compensation liquid crystal display and its driving method" in the present invention in view of the lack of the prior art and the idea of improving the invention.

The main object of the present invention is to provide a dynamic picture compensation liquid crystal display and a driving method thereof, which use a dynamic image compensator to perform dynamic image compensation on input image data to improve the smear phenomenon caused by the human eye watching the animation. Improve the quality of the animation.

Another object of the present invention is to provide a dynamic picture compensation liquid crystal display and a driving method thereof, using a frequency multiplication technique to read a first picture data and a second picture data, and using the second picture data and the first picture Generating a first picture shape data and a second picture shape data, and generating a first compensation picture data by using the second picture data, the first picture data, the previous picture shape information, and the second picture shape data In order to improve the smear (Blur) phenomenon that occurs when the human eye views the animation, thereby improving the quality of the animation.

In order to achieve the above object, the present invention provides a liquid crystal display comprising: a motion image compensator for reading a first picture data and a second picture data by using frequency doubling technology, and using the second picture data and the The first picture data generates a first picture shape data and a second picture shape data, and generates a first image by using the second picture data, the first picture data, the previous picture shape information, and the second picture shape data. Compensating the screen data; a data driver converting the second picture data, the first picture data and the first compensation picture data into corresponding data voltages, and outputting the image signals; and a scan driver for supplying the scan signals a timing controller for controlling signal synchronization and display timing, controlling the data driver and the scan driver; A liquid crystal display panel comprising a plurality of scan lines for transmitting the scan signals, and a plurality of data lines crossing the scan lines for transmitting the image signals and a pixel matrix, The scan line is formed by the area surrounded by the data lines.

In this case, we can get a deeper understanding by using the following illustrations and detailed explanations.

The display method and display of the display of the present invention are described in the following detailed embodiments, but the scope of the present invention is not limited to the following embodiments.

Please refer to FIG. 6A, which is a schematic diagram of the functional structure of the liquid crystal display for dynamic picture compensation according to the preferred embodiment of the present invention. As shown in FIG. 6A, the dynamic picture compensation liquid crystal display 300 of the present invention mainly includes a motion image compensator 310, a timing controller 320, a data driver 330, a scan driver 340, and a liquid crystal display panel 350. Referring to FIG. 6B, the motion image compensator 310 receives the input picture data, for example, receiving the picture data _Fn-2 , _Fn-1 and _Fn at times T1, T2 and T3, respectively, and between the times T1, T2 and T3. The interval is 16.67ms. In the processing program 402, the data clock is multiplied to generate multiplied picture data, wherein the times T1, T1', T2, T2', T3 correspond to the multiplied picture data _Fn-2 , _Fn-2 , F, respectively. _N-1 , F _n-1 and F _n , wherein, in an embodiment of the invention, the multiplied picture data F _n-2 , F _n-1 and F _n are respectively equal to the input picture data F _n-2 , F _n-1 and F _n . In the processing program 403, each of the multiplied frame data F _n-2 , F _n-2 , F _n-1 , F _n-1 and F _{n is} calculated to obtain picture shape data S _n-2 , Sn ₂ , S _n-1 , S _n-1 and S _n . The picture shape data can represent the relative relationship between each pixel and its surrounding pixels. In the processing program 404, the multiplied picture data F _n-2 , F _n-2 , F _n-1 , F _n-1 and F _n , and the picture shape data S _n-2 , S _n-2 , S _{n are utilized. -1} , S _n-1 and S _n to obtain adjusted picture data F _n-2 , F' _n-2 , F _n-1 , F' _n-1 and F _n , wherein an embodiment of the present invention The adjustment of the picture data F _n-2 , F _n-1 and F _n is equal to the multiplication picture data F _n-2 , F _n-1 and F _n . Finally, the screen materials F _n-2 , F' _n-2 , F _n-1 , F' _n-1 and F _n are adjusted to drive the liquid crystal display panel. The timing controller 320 is configured to receive the output picture data and the synchronization signal, generate the control signal, and output the adjustment picture data and the control signal to the data driver 330 and the scan driver 340 according to the display timing. The data driver 330 is configured to convert the adjusted picture data into corresponding data voltages and output the pixels to the pixels on the liquid crystal display panel. The scan driver 340 is configured to sequentially supply scan signals to respective pixels on the liquid crystal display panel and control switching thereof. The liquid crystal display panel 350 includes a plurality of scan lines 360 for transmitting the scan signals, and a plurality of data lines 370 crossing the scan lines 360 for transmitting the data voltage. A pixel matrix is formed by the scan lines 360 and the area surrounded by the data lines 370. As shown in FIGS. 6A and 6B, the motion image compensator 310 performs motion image compensation on the input image data to improve the Blur phenomenon generated when the human eye views the animation, thereby improving the animation quality.

Please refer to FIG. 7, which is a basic operation principle of the dynamic image compensator 310 of the preferred embodiment of the present invention. As shown in FIG. 7, it mainly includes an image data input terminal 410, a frame memory 420, a controller 430, a first shape recorder 440, a second shape recorder 450, and A shape comparator 460.

The image data input terminal 410 is configured to receive an input picture material. The frame memory 420 is for storing the picture data F _n-2 , the picture data F _{n-1 ,} and the picture material F _n . The controller 430 is configured to control the read/write operation of the frame memory 420. The controller 430 reads the current picture data F _n at 60 Hz as an example, and uses the frequency multiplication technique to display the picture data F _{n . -2 The} picture data F _n-1 is read at 120 Hz. The first shape recorder 440 and the second shape recorder 450 are respectively configured to generate the picture data F _n-1 and the picture shape data S _n-1 and a picture shape data S of the picture data F _n-2 . _N-2 . By using the picture data F _n-1 , the picture data F _n-2 , the picture shape data S _{n-1 ,} and the picture shape data S _n-2 , the shape comparator 460 is sent to the multiplier image data. Insert a compensation picture data F' _n-2 . Dynamic picture compensation can be performed based on the compensation picture data F'n _-2 .

Please refer to Figures 8A-8D for the basic operation principle of the shape recorder of the preferred embodiment of the present invention. 8A is a multi-frequency picture data F _n-2 , and the black area in the figure is a pixel data F _n-2 (i, j), and an embodiment of the present invention uses a 3*3 pixel block as a calculation unit. That is, with the pixel data F _n-2 (i, j) as the center, the pixel data of the adjacent 8 pixels is found for subsequent operations. Of course, those skilled in the art can perform operations on pixel blocks of various sizes and shapes.

First, as shown in Figs. 8B to 8C, the following description is made by taking a 3*3 pixel size as a block unit as an example, of course. The block unit centered on the spatial position (i, j) of the picture data F _n-2 contains nine pixel values for the following operations: D1=| F _n-2 (i-1, j+1)-F _{n- 2} (i,j)|;D2=| F _n-2 (i,j+1)-F _n-2 (i,j)|;D3=| F _n-2 (i+1,j+1) -F _n-2 (i,j)|;D4=| F _n-2 (i-1,j)-F _n-2 (i,j)|;D5=| F _n-2 (i,j) -F _n-2 (i,j)|=0;D6=| F _n-2 (i+1,j)-F _n-2 (i,j)|;D7=| F _n-2 (i- 1,j-1)-F _n-2 (i,j)|;D8=| F _n-2 (i,j-1)-F _n-2 (i,j)|;D9=| F _{n- 2} (i+1,j-1)-F _n-2 (i,j)|; wherein, since D5 must be 0, it is not considered. Each value in the picture shape data is an eight-bit value, which can be expressed as follows: S _n-2 (i, j) = (Q1, Q2, Q3, Q4, Q6, Q7, Q8, Q9)

When Dm < the first specific value, Qm = 0; when Dm > the first specific value, then Qm = 1, m = 1 ~ 9. In this way, this calculation is performed for each pixel on the screen, and the picture shape data S _n-2 can be obtained. Similarly _n-1 can be obtained shape of the picture data S _n-1 according to the screen frequency information F. Certainly, the first specific value may be a fixed value or dynamically adjusted according to the input signal. For example, if a more accurate picture shape data is to be known, the first specific value may be reduced, so that the logic in the picture shape data is The number of bits of 1 increases.

Next, the multiplied picture data F _n-1 , the multiplied picture data F _n-2 , the picture shape data Sn _-1, and the picture shape data S _n-2 obtained as described above are taken out, and a 1*7 pixel block is taken out. To do the calculations. As shown in FIG. 9A, the value F _n-2 (i, j) in the adjusted picture signal F' _n-2 is obtained, and the corresponding position corresponding to the same position in the multi-frequency picture data and the picture shape data is taken out. The data of each of the three pixels is calculated. Of course, if the accuracy of the calculation is to be increased, it can be calculated using, for example, 1*9 or even a larger pixel block. As shown in FIG. 9B, first, a first parameter C1 is set to F _n-1 (i, j), and a second parameter C2 is 32. Of course, the two parameter values can be adjusted according to actual needs. Then, the screen shape data S _n-1 and S _n-2 are subtracted from the signals at two positions centered on F' _n-2 (i, j). If it is 0, it can be seen that the picture shapes of the two positions are the same. . Then, it is determined whether the subtraction value of the two positions in the multi-frequency picture data F _n-1 and F _n-2 is smaller than the second parameter C2. If yes, the second parameter C2 is set to be equal to two positions on the multiplication picture. The subtraction values in the data F _n-1 and F _n-2 are set, and the first parameter C1 is set equal to the value of the position in the multiplied frame data F _n-1 at this time. Thus, the adjustment picture signal F'n _-2 can be obtained by the algorithm shown in FIG. 9B. Of course, other kinds of calculation mechanisms can be used to obtain the adjustment screen signal according to the calculation complexity and accuracy.

The specific embodiments and the drawings of the present invention are understood by those skilled in the art, but the scope of the patent is not limited to the above embodiments.

In summary, the objects of the present invention have been fully and effectively disclosed. This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

21, 22‧‧‧ brightness line

110‧‧‧ Grayscale signal conditioner

120‧‧‧Timing controller

130‧‧‧Data Drive

140‧‧‧Scan Drive

150‧‧‧LCD panel

160‧‧‧ scan line

170‧‧‧Information line

201‧‧‧The position of the object at T1

202‧‧‧The position of the object at T2

205‧‧‧ The human eye observes the normalized brightness perceived by the four pixels in the continuous picture T1 and T2 time

207‧‧‧The normalized brightness of the human eye should be traced back to the movement of the four pixels

210‧‧‧ Grayscale signal data input

220‧‧‧ Picture memory

230‧‧‧ Picture Memory Controller

240‧‧‧Signal Converter

300‧‧‧Dynamic picture compensation LCD

310‧‧‧Dynamic Image Compensator

320‧‧‧Sequence Controller

330‧‧‧Data Drive

340‧‧‧ scan driver

350‧‧‧LCD panel

401‧‧‧Processing procedures

402‧‧‧Processing procedures

403‧‧‧Processing procedures

404‧‧‧Processing procedures

410‧‧‧Image data input

420‧‧‧ Picture memory

430‧‧‧ Controller

440‧‧‧First Shape Recorder

450‧‧‧Second shape recorder

460‧‧‧Shape comparator

S _n-1 ‧‧‧ Picture shape data

S _n-2 picture shape data

F _n ‧‧‧ current picture material

F _n-1 ‧‧‧ Picture material

F _n-2 ‧‧‧ Picture material

F' _n-2 ‧‧‧Compensation of the first two pictures

L‧‧‧Brightness

t‧‧‧Time

T1, T2 and T3‧‧‧ screen time

Vd‧‧‧ drive voltage

Fig. 1A is a diagram showing a relationship between a driving voltage Vd applied to a pixel and a time t according to a conventional gray scale value.

Fig. 1B is a graph showing the relationship between the luminance L of the pixel and the time t according to the driving voltage of Fig. 1A.

Figure 2 is a schematic diagram showing the functional structure of a conventional liquid crystal display.

Figure 3 is a schematic diagram of the functional structure of a conventional gray-scale signal conditioner.

The 4A and 4B diagrams are diagrams for improving the residual image phenomenon by using the compensation voltage to correct the image signal data.

The 5A map is a schematic diagram of a position where the object is located at 201 at T1 and moved to 202 at T2.

Figure 5B is a schematic diagram of the trajectory of the moving object when it is observed by a conventional human eye.

Figure 5C is a schematic diagram of the trajectories P1, P2, P3, and P4 in Figure 5B and their corresponding normalized luminances.

FIG. 6A is a schematic diagram showing the functional structure of a liquid crystal display for dynamic picture compensation according to a preferred embodiment of the present invention.

FIG. 6B is a schematic diagram of the dynamic picture compensation image signal generation according to the preferred embodiment of the present invention.

FIG. 6C is a schematic diagram of a dynamic picture compensation image signal generation process according to a preferred embodiment of the present invention.

Figure 7 is a schematic diagram showing the functional structure of the motion image compensator of the preferred embodiment of the present invention.

8A-8D are schematic diagrams showing the basic operation principle of the shape recorder of the preferred embodiment of the present invention.

FIG. 9A is a calculation of the data of the left and right 3 pixels corresponding to the same position in the multi-frequency picture data and the picture shape data in the preferred embodiment of the present invention to obtain the value F in the adjustment picture signal F' _n-2 . Schematic diagram of the multiplier picture data table and the picture shape data table of _n-2 (i, j).

Figure 9B is a schematic diagram of the algorithm of the preferred embodiment of the present invention.

300‧‧‧Dynamic picture compensation LCD

310‧‧‧Dynamic Image Compensator

320‧‧‧Sequence Controller

330‧‧‧Data Drive

340‧‧‧ scan driver

350‧‧‧LCD panel

Claims (23)

A liquid crystal display comprising: a motion image compensator for reading a first picture data _Fn-2 and a second picture data _Fn-1 by frequency multiplication technology, and using the second picture data _{Fn -1} and the first picture data F _n-2 generate a first picture shape data S _n-2 and a second picture shape data S _n-1 , and use the second picture data F _n-1 , the first The screen data F _n-2 , the first screen shape data and the second screen shape data S _n-1 generate a first compensation picture data F′ _n-2 ; a data driver is the second picture data F _{n -1} , the first picture data _Fn-2 and the first compensation picture data F'n _{-2 are} converted into corresponding data voltages, and the image signals are output; a scan driver is used to supply the scan signals; a timing control For controlling signal synchronization and display timing, controlling the data driver and the scan driver, and a liquid crystal display panel comprising a plurality of scan lines for transmitting the scan signals, and the plurality of scan lines intersecting the scan lines Data line for transmitting the image signal, and a Element matrix, which is based region and a plurality of scanning lines such as data lines formed surrounded; wherein the first frame shape data S _n-2 based spatial position of the first picture data of the F _n-2 (i, j) for each pixel value in the m*m pixel size block unit and the spatial position (i, j) of the first picture data F _n-2 as the central pixel value F _n-2 (i, j) The absolute value of the difference is calculated as follows: D _L =| F _n-2 (i+a,j+b)-F _n-2 (i,j)|, where a and b are an integer, when When the difference absolute value D _{L is} less than a first specific value, QL is zero, and when the difference absolute value D _{L is} greater than the first specific value, QL is 1, and the first picture shape data Sn _-2 (i, j) = (Q1 Q2 Q3 Q4...QL), where L is an integer from 1 to m*m, i is the coordinate value of the X-axis in the spatial position, and y is the coordinate value of the Y-axis in the spatial position, i and j are integers, and m and n are integers. The liquid crystal display device of claim 1, wherein the motion image compensator comprises: an image data input end for receiving an image image input; and a picture memory for remembering the first a picture data F _n-2 , a second picture data F _n-1 and a current picture data F _n ; a controller for controlling the read and write operations of the picture memory, wherein the controller uses the frequency multiplication technique to a picture data F _n-2 and a second picture data F _n-1 are read out at a multiple frequency; a first shape recorder is used to generate a second picture shape data of the second picture data F _n-1 ; a second shape recorder for generating a first picture shape data of the first picture data F _n-2 ; and a shape comparator for utilizing the second picture data F _n-1 , the first picture The data F _n-2 , the first picture shape data S _n-2 and the second picture shape data S _n-1 are inserted into the multi-frequency image data to insert the first compensation picture data F′ _n-2 to achieve dynamic Picture compensation. The liquid crystal display according to claim 1, wherein the value of the first position of one of the second picture shape data Sn _-1 and the value of the second position of one of the first picture shape data Sn _-2 are performed. The result of the subtraction is zero, and the first position representing the second picture shape data Sn _-1 is the same as the shape record of the second position of the first picture shape data Sn _-2 . The liquid crystal display according to claim 2, wherein the value of the first position of one of the second picture shape data Sn _-1 and the value of the second position of one of the first picture shape data Sn _-2 The result of the subtraction is zero, and the first position representing the second picture shape data Sn _-1 is the same as the shape record of the second position of the first picture shape data Sn _-2 . The liquid crystal display of claim 3, wherein the value of the first position of all the second picture data F _n-1 (i, j) is found with the first picture data F _n-2 (i The absolute value of the difference between the values of the second position of j) is less than the second specific value, and the first compensation picture data F' _n-2 (i, j) is F _n-1 (ix, j) , where x is an integer. The liquid crystal display of claim 4, wherein the value of the first position of all the second picture data F _n-1 (i, j) is found and the first picture shape data F _n-2 ( If the absolute value of the difference between the values of the second position of i, j) is less than the second specific value, the first compensation picture data F' _n-2 (i, j) is F _n-1 (ix, j) ), where x is an integer. A liquid crystal display driving method includes the steps of: receiving a picture data, wherein the picture data has a first picture frequency; and generating a multiplication picture data according to the picture data, wherein the multiplication picture data has a second picture frequency And the second picture frequency is an integer multiple of the first picture frequency; the multiplying picture data is calculated to generate a picture shape data; the adjusted picture data is generated by using the multiplied picture data and the picture shape data; Converting the adjusted picture data into a corresponding data voltage, and outputting the corresponding data voltage to each pixel on a liquid crystal display panel; wherein the step of generating the picture shape data by using the multiplication picture data operation further comprises the following steps: The first picture shape data S _n-2 is each pixel value in the m*m pixel size block unit centered on the spatial position (i, j) of the first picture data F _n-2 and the first picture data F spatial position (i, j) _n-2 of the central pixel value _{F n-2 (i, j} ) is calculated as the difference between the absolute values calculated as _{follows: D L = | F n-} 2 (i + a, _{j + b) -F n-2} (i, j) |, A, b, is an integer, when the difference absolute value D _L is less than a first specific value QL is zero when the absolute value of the difference D _L is greater than the first specific value, the QL is 1, The first picture shape data S _n-2 (i, j)=(Q1 Q2 Q3 Q4...QL), where L is an integer of 1 to m*m, i is a coordinate value of the X-axis in the spatial position, y Is the coordinate value of the Y-axis in the spatial position, i and j are integers, and m and n are integers. The liquid crystal display driving method of claim 7, wherein the second picture frequency is twice the frequency of the first picture. The liquid crystal display driving method of claim 8, wherein the step of receiving a picture data further comprises the step of: the picture material comprising a first picture and a second picture material _Fn-1 at a first moment Receiving a first picture data _Fn-2 and receiving a second picture data _Fn-1 at a second time, the time interval between the first time and the second time is a first specific time interval. The liquid crystal display driving method of claim 9, wherein the step of generating a multi-frequency picture data according to the picture data further comprises the following steps: the multi-frequency picture data comprises a first multi-frequency picture data, a first The second frequency picture data and a third frequency multiplication picture data are generated, according to the first picture data _Fn-2, to generate the first multiplied picture data, and at the second time, according to the second picture The data F _{n-1 is used} to generate the third multiplied picture data, and at a third time, the first picture data F _{n-2 is} multiplied to generate the second multiplied picture data to be inserted into the first multiplied picture. The data and the timing of the third multiplied picture data. The liquid crystal display driving method of claim 10, wherein the third time is between the first time and the second time, and the time interval between the third time and the first time is one The second specific time interval is one-half of the first specific time interval. The liquid crystal display driving method of claim 10, wherein the first multiplied picture data is the first picture data F _n-2 , and the third multiplied picture data is the second picture data F _N-1 . The liquid crystal display driving method of claim 11, wherein the first multiplied picture data is the first picture data F _n-2 , and the third multiplied picture data is the second picture data F _N-1 . The liquid crystal display driving method of claim 10, wherein the step of calculating the multiplied frame data to generate a picture shape data further comprises the step of: generating a first picture shape by using the first multiplied picture data; And generating a second picture shape signal by using the second multiplied picture data and generating a third picture shape signal by using the third multiplied picture data. The liquid crystal display driving method of claim 13, wherein the step of calculating the multiplied frame data to generate a picture shape data further comprises the step of: generating a first picture shape by using the first multiplied picture data; And generating a second picture shape signal by using the second multiplied picture data and generating a third picture shape signal by using the third multiplied picture data. The liquid crystal display driving method of claim 14, wherein the adjustment screen data includes a first adjustment screen data, a second adjustment screen data, and a third adjustment screen data, wherein the first adjustment screen data and The third adjusted picture data is the first multiplied picture data and the third multiplied data, respectively. The liquid crystal display driving method of claim 15, wherein the adjustment screen data includes a first adjustment screen data, a second adjustment screen data, and a third adjustment screen data, wherein the first adjustment screen data and The third adjusted picture data is the first multiplied picture data and the third multiplied data, respectively. The liquid crystal display driving method of claim 16, wherein the step of generating an adjusted picture data by using the multiplied picture data and the picture shape data further comprises the following steps: using the first adjusted picture data, the third Adjusting the picture data, the first picture shape signal, and the third picture shape signal to generate the second adjustment picture data. The liquid crystal display driving method of claim 17, wherein the multiplying screen data and the shape data of the screen are generated. The step of adjusting the picture data further includes the following steps: generating the second adjusted picture data by using the first adjusted picture data, the third adjusted picture data, the first picture shape signal, and the third picture shape signal. The liquid crystal display driving method of claim 18, further comprising the step of: the value of the first position of the second picture shape data Sn _-1 and the first picture shape data Sn _-2 If the result of subtracting the value of the second position is zero, it represents a shape record of a certain position of the second picture shape data Sn _-1 and a certain position of the first picture shape data Sn _-2 . the same. The liquid crystal display driving method of claim 19, further comprising the step of: the value of the first position of the second picture shape data Sn _-1 and the first picture shape data Sn _-2 The result of subtracting the difference between the values of the second position is zero, and represents a certain position of the second picture shape data Sn _-1 and a certain position of the first picture shape data Sn _-2 The shape record is the same. The liquid crystal display driving method of claim 20, further comprising the steps of: finding a value of the first position of all the second picture data F _n-1 (i, j) and the first picture If the absolute value of the difference between the values of the second position of the data F _n-2 (i, j) is less than the second specific value, the first compensation picture data F' _n-2 (i, j) is F _{n -1} (ix,j), where x is an integer. The liquid crystal display driving method of claim 21, further comprising the steps of: finding a value of the first position of all the second picture data F _n-1 (i, j) and the first picture If the absolute value of the difference between the values of the second position of the data F _n-2 (i, j) is less than the second specific value, the first compensation picture data F' _n-2 (i, j) is F _{n -1} (ix,j), where x is an integer.