TWI407424B - Method of improving motion blur and contour shadow of a display and display thereof - Google Patents

Abstract

While a display displays a plurality of frames, each Gamma curve for controlling luminance of the frames is separated into two Gamma curves so as to display two corresponding sub-frames having different luminance. Besides, a single frame and a previously-received frame are adjusted with a related gray level curve so that motion blur and contour shadow may be eliminated simultaneously while consecutively outputting two frames having gray levels having a significant difference with each other.

Description

Method for improving display smear phenomenon and track phenomenon and related display

The invention discloses a method and a related display for improving the smear phenomenon and the track phenomenon of the display, in particular to correcting the output gray scale value of the output when the average brightness changes greatly when the continuous frame is output, so as to improve the smear phenomenon at the same time. And the method of the track phenomenon and the related display.

A general display panel includes a liquid crystal panel and an Organic Light Emitting Diode (OLED) panel, and when the liquid crystal display panel is in a poor dynamic image quality, the main reason is that the reaction speed is insufficient. However, in fact, the steady-state (Hold-type) driving method used in the general display panel also causes a Motion Blur phenomenon, which reduces the dynamic image quality of the display panel. Please refer to FIG. 1 , which is a graph showing the relationship between time and brightness when a general display panel is operated by a steady-state driving method, wherein a solid line generally displays a curve when the panel emits light in a steady state, and a broken line represents a human eye to stabilize. The brightness that is displayed when the display panel is displayed. Assume that the frame rate used to transmit a single frame in Figure 1 is 60 Hz. As you can see from Figure 1, it can be seen that the human eye automatically integrates the perceived change in brightness, making it easy for the human eye to feel the visual persistence. The brightness left by the frame and the brightness of the actual display of the display panel have a superimposed effect, so the smear phenomenon is felt by the naked eye.

In order to solve the smear phenomenon that occurs when the display panel is displayed in a steady state, a pulse-type driving method is applied to a general display panel. Please refer to FIG. 2 , which is a graph showing the relationship between time and brightness when a general display panel is operated by a pulse driving method, wherein the solid line is a curve when a general display panel emits light in a pulse pattern, and the broken line represents a human eye. The brightness that is felt when the display panel is displayed in pulse form. Assume that the frame frequency used is the same 60Hz as that of FIG. 1. As shown in FIG. 2, when the general display panel is displayed by the pulse driving method, the average brightness perceived by the human naked eye is closer to the actual brightness of the display panel, and thus comparison is made. No smear occurs.

The general pulse driving method mainly includes Black Frame Insertion Technology, which is commonly known as black insertion. The main feature of the black insertion technology is to change the single frame originally transmitted at a single frame rate to two sub-frames in a double frame rate (Double Frame Rate). Is a black frame picture. Please refer to Figure 3 and Figure 4. FIG. 3 is a schematic diagram showing the use of black insertion technology to replace a single frame with two adjacent subframes for display. In FIG. 3, F(n), F(n+1), and F(n+2) represent three frames of pictures that are continuously displayed. Each frame corresponds to two subframes, for example, the frame F(n) corresponds to the subframes F(n)_1 and F(n)_2, and the frame F(n+1) corresponds to the subframe F(n). +1)_1 and F(n+1)_2, frame F(n+2) correspond to subframes F(n+2)_1 and F(n+2)_2, and subframe F(n)_2, F(n+1)_2 and F(n+2)_2 each correspond to black sub-frames inserted in frames F(n), F(n+1), and F(n+2).

4 is a schematic diagram showing the brightness used in each frame and sub-frame shown in FIG. 3; assuming that the frame frequency of the frames F(n), F(n+1), and F(n+2) is 60 Hz, Then, the sub-frames F(n)_1 and F(n)_2, F(n+1)_1 and F(n+1)_2, F(n+2)_1 and F(n+2) are displayed by the black insertion technique. The frame rate of _2 is 120 Hz which is twice the frequency of 60 Hz. Looking at Figure 4, it can be found that the black sub-frames F(n)_2, F(n+1)_2, and F(n+2)_2 are all in the corresponding frames F(n), F(n+1), F. (n+2) the lower-brightness sub-frame; in other words, each black sub-frame must be sandwiched between two brighter sub-frames, so that the display panel has twice the original frame rate and the light-dark inter-subframe To display, and thereby eliminate the smear phenomenon as described before.

However, as shown in FIG. 4, since a single frame is displayed in such a manner that two sub-frames of one bright and one dark are simultaneously displayed, it is easy for the naked eye to clearly perceive the difference in brightness of the picture, that is, a so-called flicker phenomenon. As a result, although the smear phenomenon is eliminated, the quality of the display screen is still lowered because of the introduction of the flicker phenomenon. Furthermore, due to the insertion of black sub-frames, the average brightness of a single frame is also reduced.

In order to solve the disadvantages caused by the black insertion technique to reduce the smear phenomenon in the prior art, the present invention discloses a method for improving the smear phenomenon of a display panel and a related timing controller (Timing Controller), wherein the timing controller Used for a display.

The present invention discloses a method for improving the Motion Blur phenomenon and the Contour Shadow phenomenon of a display. The method includes: when the first average grayscale value of one of the first frames is displayed and the second average grayscale value of one of the second frames is used to be unequal, the second average grayscale value is replaced by one a third average grayscale value; and updating a brightness used to display the second frame according to the third average grayscale value and the at least one luminance lookup table. The third average grayscale value is higher than the first average grayscale value and the second average grayscale value or both lower than the first average grayscale value and the second average grayscale value.

The present invention discloses a display that improves the smear phenomenon and the track phenomenon. The display includes a display panel and a timing controller. The timing controller includes a frame buffer memory, a gray scale value curve correction module, a first brightness lookup table, and a second brightness lookup table. The frame buffer memory system is configured to temporarily store one of the first frames included in the pixel data. The first frame is displayed with a first average grayscale value. The grayscale value curve correction module is configured to receive a second frame included in a pixel data. The second frame is input to the display later than the first frame. The second frame is displayed with a second average grayscale value. The grayscale value curve correction module is configured to replace the second average grayscale value with a third average grayscale value when the first average grayscale value and the second average grayscale value are not equal. The first brightness query table is configured to output a first subframe to the display panel according to the third average grayscale value. The second brightness lookup table is configured to output a second subframe to the display panel according to the second average grayscale value. The display panel performs display of the second frame according to the first subframe and the second subframe. The third average grayscale value is higher than the first average grayscale value and the second average grayscale value or both lower than the first average grayscale value and the second average grayscale value.

According to the method and the display disclosed by the present invention, in addition to cutting a single frame into a plurality of sub-frames having different luminances by using a gamma curve, a single frame and a frame received at a previous time are also subjected to a grayscale value curve to eliminate Only eliminate the phenomenon of track and shadow that may be caused by the smear phenomenon.

Please refer to Figure 5 and Figure 6. FIG. 5 is a schematic diagram showing the output of frames F(n) and F(n+1) into two sets of subframes Fn_1, Fn_2, and Fn+1_1, Fn+1_2, respectively. Figure 6 is a schematic diagram showing the gamma curve f(g) representing the average luminance cut into a first gamma curve f1(g) and a second gamma curve f2(g) according to a predetermined grayscale value x in the present invention. The frames F(n) and F(n+1) shown in FIG. 5 are based on the gamma curve f(g) as the basis for displaying the brightness, and the sub-frames Fn_1 and Fn+1_1 shown in FIG. The Ma curve f1(g) is used as the basis for the display brightness, and the sub-frames Fn_2 and Fn+1_2 shown in FIG. 5 are based on the gamma curve f2(g) as the basis for displaying the brightness. Please note that the gamma curve is a function of the relationship between the brightness and the grayscale value used to display the pixels, that is, a Motion Picture Response Function, and is familiar to those skilled in the art. As far as we know, we will not repeat them.

As shown in FIG. 5, the frame F(n) is displayed by the sub-frames Fn_1 and Fn_2, and the frame F(n+1) is displayed by the sub-frames Fn+1_1 and Fn+1_2, wherein the sub-frame Fn_1 and Fn+1_1 corresponds to the luminance output by the gamma curve f1(g) shown in Fig. 6, and the sub-frames Fn_2 and Fn+2_2 correspond to the output of the gamma curve f2(g) shown in Fig. 6. Brightness. In FIG. 6, the first gamma curve f1(g) is higher than the brightness of the second gray level f2(g) at a brightness lower than the predetermined gray level value x, and is at a predetermined gray level value x and the second gamma The curve f2(g) meets; however, the brightness of the first gamma curve f1(g) is greater than the brightness of the predetermined gray level value x but lower than the brightness of the second gamma curve f2(g); with such a setting, When a single frame expresses its brightness in gamma curves f1(g) and f2(g), its average brightness f(g) can still be maintained. The smear interval ΔG shown in FIG. 6 represents a situation in which the brightness changes drastically with a gray scale value that does not change much, and thus a smear phenomenon occurs, and the smaller the length of the smear interval ΔG, That is, when the slopes of the gamma curves f1(g) and f2(g) are larger in the smear interval ΔG, the smear phenomenon perceived by the naked eye when viewing the frame will be less noticeable.

Please refer to FIG. 7, which is a simplified schematic diagram of a display 100 for implementing the improved smear phenomenon disclosed in the present invention. As shown in FIG. 7, the display 100 includes a timing controller 180 and a display panel 150. The timing controller 180 includes a grayscale value curve correction module 110, a frame buffer memory 120, brightness lookup tables 130 and 140, and a control signal generator 160. The timing controller 180 is configured to receive frame pixel data in units of frames and perform related luminance processing, and output two sub-frames corresponding to the frame pixel data in units of sub-frames Fn+1_1 and Fn+1_2. The data is displayed to the display panel 150. The display panel 150 displays a picture based on the received two sub-frame pixel data. The control signal generator 160 is used to generate various synchronization signals or data enable signals required by the display panel 180 and transmitted to the display panel 150 to control the timing of displaying the screen by the display panel 150. The frame buffer memory 120 is used to temporarily store frame pixel data, such as the frame F(n) illustrated in FIG. The grayscale value curve correction module 110 is configured to use the average grayscale value of the frame pixel data of both the currently received frame F(n+1) and the frame F(n) temporarily stored by the frame buffer memory 120. When equal, according to the two average grayscale values used by the frames F(n) and F(n+1), the grayscale value processing of the smear phenomenon and the track phenomenon is performed on the subframe Fn+1_1 to determine the display. The grayscale value used by frame Fn+1_1. The brightness query table 130 is configured to correct the brightness displayed by the sub-frame Fn+1_1 according to the gray-scale value determined by the gray-scale value curve correction module 110, and output one of the first sub-frame pixels included in the sub-frame Fn+1_1. The data, and the brightness lookup table 140 is used to control the brightness displayed by the sub-frame Fn+1_2 according to the gray-scale value used by the original frame F(n+1) in the pixel data and output the sub-frame Fn+1_2 A second sub-frame pixel data. Please note that the brightness lookup table 130 stores the gamma curve f1(g) as shown in FIG. 6, that is, stores a first motion picture response function corresponding to the frame picture included in the display sub-frame Fn+1_1. Each gray scale value that may appear in the data determines the brightness used to display the frame pixel data; in other words, the brightness lookup table 130 uses the plurality of gray scale values that can be used in the subframe Fn+1_1 as the query. Use the index of the brightness to get the brightness used. Similarly, the brightness lookup table 140 stores the gamma curve f2(g) as shown in FIG. 6, that is, stores a second motion picture response function corresponding to the frame pixels included in the display sub-frame Fn+1_2. Each grayscale value that may appear in the data determines the brightness used to display the framed pixel data.

Please refer to Figure 8 and Figure 9. 8 and FIG. 9 are used to explain the principle of the gray scale value curve correction module 110 shown in FIG. 7 to reduce the smear phenomenon, and please refer to FIG. 7 at the same time. FIG. 8 is a diagram showing a frame F(n-1), F for displaying a plurality of consecutive outputs when the gray scale value curve correction module 110 and the frame buffer memory 120 are not provided in FIG. 7 for performing gray scale value curve correction. Schematic diagram of gray scale values of (n), F(n+1), F(n+2), and F(n+3). FIG. 9 is a diagram showing a frame F(n-1) for displaying a plurality of consecutive outputs when the gray scale value curve correction module 110 and the frame buffer memory 120 are provided in FIG. 7 for performing gray scale value curve correction. Schematic diagram of gray scale values of F(n), F(n+1), F(n+2), and F(n+3). When each frame is displayed in FIG. 8 and FIG. 9, it is substantially performed by continuously displaying two subframes as shown in FIG. 5 and FIG. 6; for example, the timing controller 180 shown in FIG. 7 displays the frame. When F(n+1), substantially two sub-frames Fn+1_1 and Fn+1_2 are displayed, and observing the substantial gray-scale value curve, the sub-frame Fn+1_1 corresponds to the first gamma curve shown in FIG. F1 (g), and the sub-frame Fn+1_2 corresponds to the second gamma curve f2(g) shown in FIG.

8 and FIG. 9 are diagrams showing a situation in which the average grayscale value of two adjacent frames is abruptly reduced from a high grayscale value to a low grayscale value. In FIG. 8, it is assumed that the pixel data of the frames F(n-1), F(n), F(n+1), F(n+2), and F(n+3) of the timing controller 180 are input. The gray levels are 160, 160, 64, 64, 64, respectively, that is, if the average gray level value is greatly reduced from 160 to 64, then when the frames F(n) and F(n+1) are continuously output, the frame F ( The average grayscale of the frame picture of n+1) will rise to 190 before sliding down to 64, so that the slope of the average grayscale value curve becomes large when the frame F(n+1) is displayed. When the frame F(n+1) is displayed, the naked eye will feel the sudden increase of the average grayscale value from 160 to 190, and even feel the image of the object displayed in the screen (Contour Shadow). Phenomenon; the so-called track phenomenon refers to a kind of high-brightness picture, when the brightness suddenly increases further, resulting in a bright track on the periphery of a high-brightness object, or a sudden decrease in brightness when displaying a low-brightness picture A phenomenon of a dark track on the periphery of a low-brightness object.

In order to avoid the situation that the grayscale value setting of FIG. 8 may cause a track phenomenon, the timing controller 180 shown in FIG. 7 is provided with a grayscale value curve correction module 110 and a frame buffer memory 120 for performing grayscale value curves. Corrected. When the grayscale value of the frame F(n+1) is smaller than the grayscale value of the frame F(n), the grayscale value of the frame F(n+1) is corrected by the grayscale value curve correction module 110, and a A grayscale value smaller than the grayscale value of the frame F(n+1). When the grayscale value of the frame F(n+1) is greater than the grayscale value of the frame F(n), the grayscale value of the frame F(n+1) is corrected by the grayscale value curve correction module 110, and a A grayscale value greater than the grayscale value of the frame F(n+1).

As shown in FIG. 9, the grayscale value of the frame F(n+1) is equal to 64, and the grayscale value of the frame F(n) is equal to 160. In order to avoid the track phenomenon described in FIG. 8, the grayscale value curve correction module 110 lowers the grayscale value of the subframe Fn+1_1 from 190 shown in FIG. 8 to 174, so that the frame F(n+1) The grayscale value is pulled down to 64 by 64 shown in Fig. 8; in other words, the grayscale value of the subfield Fn+1_2 shown in Fig. 8 is reduced from 190 to 64, and is lowered to the grayscale value 174. The interval between 48; in this way, when the naked eye observes the display of the frame F(n+1), the phenomenon of the rail shadow will not be felt due to the sudden change of the grayscale value. Please note that in this case, it is assumed that when the grayscale value is suddenly increased from 160 to above 174, the orbital phenomenon still occurs. In other words, the difference 14 between the grayscale values 160 and 174 is regarded as a critical grayscale. The value difference. In addition, the critical grayscale value difference is generated according to the difference between the original average grayscale values of the frame F(n) and F(n+1), that is, the difference 96 between the grayscale values 160 and 64; Therefore, the grayscale value curve correction module 110 shown in FIG. 7 needs to input the frames F(n) and F(n+1) simultaneously to determine the grayscale value to be output.

Please refer to FIG. 10 and FIG. 11 , which corresponds to a situation in which the average gray scale value of two adjacent frames is suddenly increased from a low gray scale value to a high gray scale value. FIG. 10 is a diagram showing a frame F(n-1), F for displaying a plurality of consecutive outputs when the gray scale value curve correction module 110 and the frame buffer memory 120 are not provided in FIG. 7 for performing gray scale value curve correction. Schematic diagram of the grayscale values of the frame pictures of (n), F(n+1), F(n+2), and F(n+3). It is assumed here that the gray scales of the pixel data of the frames F(n-1), F(n), F(n+1), F(n+2), and F(n+3) of the input timing controller 180 are respectively 64, 64, 160, 160, 160, that is, if the average grayscale value is greatly increased from 64 to 160, the track will be caused when the frames of frames F(n) and F(n+1) are continuously displayed. Shadow phenomenon. 11 is a diagram showing a frame F(n-1) for displaying a plurality of consecutive outputs when the grayscale value curve correction module 110 and the frame buffer memory 120 are provided in FIG. 7 for performing grayscale value curve correction. Schematic diagram of grayscale values of frame pictures of F(n), F(n+1), F(n+2), and F(n+3), wherein frames F(n) and F(n+1) are continuously displayed. In the frame picture, the average grayscale value is greatly increased and the average brightness adjustment method as shown in FIG. 9 is used to avoid the phenomenon of track shadow. 10 and FIG. 11 correspond to the description of FIG. 8 and FIG. 9, respectively, and thus the repeated portions will not be described again.

It should be noted that the gray scale values used in the above-described FIGS. 8 to 11 are merely illustrative of the embodiments of the present invention, and are not intended to limit the range of gray scale values that can be used in the practice of the present invention.

In addition, in FIG. 7, although the sub-frame Fn+1_1 corresponds to the first gamma curve f1(g) shown in FIG. 6, the sub-frame Fn+1_2 corresponds to the second gamma curve f2 shown in FIG. (g), but in some embodiments of the present invention, the subframe Fn+1_1 may also correspond to the second gamma curve f2(g) shown in FIG. 6, and the subframe Fn+1_2 may also correspond to FIG. The first gamma curve f1(g) is shown. In other words, when the timing controller 180 controls the brightness of the output frame F(n+1) according to the grayscale value change, the output order of the two subframes that are first brightened, then darkened, or first darkened and then brightened can be used.

Please refer to FIG. 12 , which is a flowchart of a method for improving the smear phenomenon and the track phenomenon of the display according to the present invention. As shown in FIG. 12, the method of the present invention comprises the following steps: Step 302: Corresponding to a dynamic image response function of each of the plurality of grayscale values used by a display panel on a display panel. Decomposed into a first motion image response function and a second motion image response function; Step 304: storing the first motion image response function and the second motion image response function corresponding to each grayscale value in at least one a brightness lookup table; step 306: when used to display a first average grayscale value of a first frame and a second average grayscale value used to display a second frame is not equal, the second average grayscale The value is replaced by a third average gray level value; wherein the third average gray level value is higher than the first average gray level value and the second average gray level value or lower than the first average gray level a value and the second average grayscale value; and step 308: updating a brightness used to display the second frame according to the third average grayscale value and the brightness lookup table.

The steps shown in Fig. 12 are only the summary of the descriptions of Figs. 5 to 11 above, and the details thereof will not be repeatedly described. Other embodiments resulting from the reasonable combination of the limitations mentioned in the above description with the steps shown in FIG. 12, or other embodiments derived from the reasonable arrangement of the steps shown in FIG. It should still be considered as a scope of the present invention.

The present invention discloses a method and related display for improving display smear phenomenon and track phenomenon. According to the method and the display disclosed by the present invention, in addition to cutting a single frame into a plurality of sub-frames having different luminances by using a gamma curve, a single frame and a frame received at a previous time are also subjected to a grayscale value curve to eliminate Only eliminate the phenomenon of track and shadow that may be caused by the smear phenomenon.

F(n-1), F(n), F(n+1), F(n+2), F(n+3)‧‧‧ frames

F(n)_1, F(n)_2, F(n+1)_1, F(n+1)_2, F(n+2)_1, F(n+2)_2, Fn_1, Fn_2, Fn+ 1_1, Fn+1_2‧‧‧Subframe

f(g), f1(g), f2(g)‧‧· gamma curve

100‧‧‧ display

110‧‧‧ Gray scale value curve correction module

120‧‧‧ frame buffer memory

130, 140‧‧‧ brightness questionnaire

150‧‧‧ display panel

160‧‧‧Control signal generator

180‧‧‧ timing controller

302, 304, 306, 308‧ ‧ steps

Figure 1 is a graph showing the relationship between time and brightness when a general display panel is operated using a steady-state driving method.

2 is a graph showing the relationship between time and brightness when a general display panel operates using a pulsed driving method.

FIG. 3 is a schematic diagram showing the use of black insertion technology to replace a single frame with two adjacent subframes for display.

FIG. 4 is a schematic diagram showing the brightness used in each frame and sub-frame shown in FIG.

FIG. 5 is a schematic diagram showing the output of frames F(n) and F(n+1) into two sets of subframes Fn_1, Fn_2, and Fn+1_1, Fn+1_2, respectively.

6 is a gamma curve f(g) showing average brightness according to a predetermined gray scale value x, which is cut into a first gamma curve f1 (g) and a second gamma curve f2 (g) according to the present invention. schematic diagram.

FIG. 7 is a schematic diagram of a display for implementing one of the improved smear phenomena disclosed in the present invention.

8 , 9 , 10 , and 11 are diagrams for explaining the principle of reducing the smear phenomenon by the gray scale value curve correction module shown in FIG. 7 .

FIG. 12 is a flow chart of a method for improving a smear phenomenon and a track phenomenon of a display according to the present invention.

F(n), F(n+1). . . frame

Fn+1_1, Fn+1_2. . . Subframe

100. . . monitor

110. . . Gray scale value curve correction module

120. . . Frame buffer memory

130, 140. . . Brightness lookup table

150. . . Display panel

160. . . Control signal generator

180. . . Timing controller

Claims (6)

A method for improving a smear phenomenon and a track phenomenon of a display, comprising: displaying a first average grayscale value of a first frame and displaying a second average grayscale value of a second frame is not equal And replacing the second average grayscale value with a third average grayscale value; and updating, according to the third average grayscale value and the at least one brightness lookup table, a brightness used to display the second frame; wherein, The third average grayscale value is higher than the first average grayscale value and the second average grayscale value or both lower than the first average grayscale value and the second average grayscale value, where When the third average grayscale value is higher than the first average grayscale value and the second average grayscale value, the first average grayscale value is lower than the second average grayscale value, and the third average The grayscale value is higher than the second average grayscale value by a critical grayscale value difference, and when the third average grayscale value is simultaneously lower than the first average grayscale value and the second average grayscale value The first average grayscale value is higher than the second average grayscale value, and the third average grayscale value is higher than the first The average grayscale value lower than a threshold grayscale value difference. The method for improving the smear phenomenon and the track phenomenon of the display according to the first aspect of the invention, wherein the third average gray level value and the at least one brightness lookup table are used to update the display of the second frame. The brightness system includes: querying the brightness query table by using the third average gray level value as an index to determine a third motion image response function and a fourth motion image response function corresponding to one of the third average gray level values; And generating a first subframe according to the third motion image response function, and according to the fourth dynamic The image response function produces a second sub-frame. The method for improving the smear phenomenon and the track phenomenon of the display according to the first aspect of the patent application, further comprising: displaying each gray scale value of a plurality of gray scale values used for displaying a pixel on a display panel One of the corresponding motion picture response functions is decomposed into a first motion image response function and a second motion image response function; and the first motion image response function corresponding to each gray scale value is And the second motion image response function is stored in the at least one brightness lookup table. A display for improving smear phenomenon and track shadow phenomenon, comprising: a display panel; and a timing controller, comprising: a frame buffer memory for temporarily storing one of the first frames included in the pixel data, wherein The first frame is displayed by a first average grayscale value; a grayscale value curve correction module is configured to receive a second frame included in a pixel data, wherein the second frame is the first frame The frame is lately input to the display, the second frame is displayed by a second average grayscale value, and the grayscale value curve correction module is configured to use the first average grayscale value and the second average grayscale value. If not equal, the second average grayscale value is replaced with a third average grayscale value; a first brightness lookup table is configured to output a first subframe pixel data according to the third average grayscale value to the a display panel; and a second brightness lookup table, configured to output a second sub-frame pixel data to the display panel according to the second average grayscale value; wherein the display panel is based on the first sub-frame pixel data and The second sub-frame pixel data performs display of the second frame; The third average grayscale value is higher than the first average grayscale value and the second average grayscale value or both lower than the first average grayscale value and the second average grayscale value, wherein When the third average grayscale value is higher than the first average grayscale value and the second average grayscale value, the first average grayscale value is lower than the second average grayscale value, and the third The average grayscale value is higher than the second average grayscale value by a critical grayscale value difference, and when the third average grayscale value is simultaneously lower than the first average grayscale value and the second average grayscale value The first average grayscale value is higher than the second average grayscale value, and the third average grayscale value is lower than the second average grayscale value by a critical grayscale value difference. The display for improving the smear phenomenon and the track phenomenon as described in claim 4, wherein each of the plurality of gray scale values used for displaying a pixel on the display panel corresponds to one of the dynamic values The image response function is decomposed into a first motion image response function and a second motion image response function, and the first motion image response function is stored in the first brightness query table, and the second motion image response function The system is stored in the second brightness lookup table. The display for improving the smear phenomenon and the track phenomenon as described in claim 4, further comprising: a control signal generator for generating various synchronization signals or data enable signals required by the display panel and transmitting To the display panel to control the output screen of the display panel.