TWI716799B - Motion blur effect adjustment method and display system capable of adjusting a motion blur effect - Google Patents

Abstract

A motion blur effect adjustment method includes partitioning a display panel into at least two regions, tracking positions of eyes to generate position information of eyes tracking by using an image capturing device, acquiring a first region of a visual range corresponding to the positions of eyes from the at least two regions according to the position information of eyes tracking, reducing a motion blur effect of the first region, and adjusting a motion blur effect of a second region outside the first region.

Description

The method of adjusting the dynamic blur effect and the display with the ability to adjust the dynamic blur effect Display system

The present invention describes a method for adjusting the dynamic blur effect and a display system with the ability to adjust the dynamic blur effect, in particular to a method for dynamically adjusting the dynamic blur effect based on eyeball position tracking information and a display system thereof.

With the rapid development of technology, various high-end displays or screens are also widely used in daily life, such as professional monitors for gaming or home theaters. As users have higher and higher requirements for visual experience, many high-end displays have the function of moving picture response time (MPRT). The MPRT function can improve the image sticking effect caused by the rapid displacement of objects in the image.

The general method of using MPRT function to improve the dynamic afterimage effect is described below. The liquid crystal molecules of the display become transient when the screen is updated. The transient liquid crystal molecules can easily trigger the dynamic afterimage effect. When the dynamic afterimage effect occurs, the user will observe that the object produces a motion blur (Motion Blur) phenomenon, which will seriously affect the quality of the visual experience. In order to reduce the dynamic blur phenomenon, in the display, the time when the backlight is turned on and the time when the liquid crystal molecules are in a transient state can be set to not overlap. In other words, the time when the backlight is turned on falls within the blanking interval of the vertical synchronization signal (Blanking Interval). However, when the blank interval is very narrow, The time for the backlight to turn on will also be insufficient, resulting in a darker display brightness.

Another way to improve the motion blur phenomenon is to divide the display panel of the display into a good area (no motion blur effect) and a bad area (with motion blur effect). The location of the bad area can be set in the vertical edge area of the display panel. The time when the backlight is turned on falls in the blank interval of the vertical synchronization signal and the pixel active interval corresponding to the bad area. The bad area can account for 20% of the display panel area, and the good area can account for 80% of the display panel area. In other words, in the display, the time when the backlight is turned on and the time when the liquid crystal molecules are transient are set to partially overlap. However, although the time the backlight is turned on becomes longer and the brightness of the display becomes higher, the bad area still has a serious dynamic blur effect. Therefore, when the user's visual focus moves to the bad zone, there will be a bad visual experience.

An embodiment of the present invention provides a method for adjusting the dynamic blur effect. The method of adjusting the motion blur effect includes dividing the display panel into at least two areas, tracking the eyeball position using an image capture device to generate eyeball position tracking information, and obtaining the corresponding eyeball position in the at least two areas according to the eyeball position tracking information The first area of the field of view reduces the motion blur effect of the first area, and adjusts the motion blur effect of the second area outside the first area.

Another embodiment of the present invention provides a display system capable of adjusting the dynamic blur effect. The display system with the ability to adjust the motion blur effect includes a display panel, an image capture device, a control device, a processor, a backlight device, and a motion blur control unit. The display panel is used for displaying images. The image capturing device is used to track the eyeball position to generate eyeball position tracking information. The processor is coupled to the control device for obtaining the first area of the field of view corresponding to the eyeball position among the at least two areas according to the eyeball position tracking information. The backlight device is used for generating a backlight signal according to the backlight driving current. The dynamic blur control unit is coupled to the processor and the display panel to generate a backlight driving current to control the backlight device, and use the dynamic non-blur function to improve the dynamic image retention of the display panel. The processor uses dynamic fuzzy control The control unit reduces the motion blur effect of the first area, and adjusts the motion blur effect of the second area outside the first area.

100: display system

10: Display panel

11: Image capture device

12: Control device

13: processor

14: Backlight device

15: Dynamic fuzzy control unit

10a: Upper area

10b: Middle area

10c: Lower area

X, Y and Z: the number of vertical pixels

R1: First zone

R2: second area

Vsync: vertical sync signal

BL, BL ₁ , BL ₂ to BL _M : backlight drive current

T1: the first time interval

T2: second time interval

F1: Front porch area

BP: Back porch area

BLK: blank interval

ACT: Pixel active interval

F: picture frame period

E1, E2, E3, E4: enabling interval

FT1: First rollover time

FT2: Second rollover time

R3: Third region

F1 to FN: Picture frame

T3: The third time interval

T4: The fourth time interval

T5: fifth time interval

S111 to S115: steps

Figure 1 is a block diagram of an embodiment of the display system capable of adjusting the dynamic blur effect of the present invention.

Fig. 2 is a schematic diagram of the display panel divided into multiple areas in the display system of Fig. 1.

FIG. 3 is a schematic diagram of the first relationship between the vertical synchronization signal and the backlight driving current in the display system of FIG. 1, when the first area of the field of view is in the lower area.

Figure 4 is a schematic diagram of the second relationship between the vertical synchronization signal and the backlight drive current in the display system of Figure 1, when the field of view is in the first area.

FIG. 5 is a schematic diagram of the third relationship between the vertical synchronization signal and the backlight driving current in the display system of FIG. 1, when the field of view is in the first area.

Figure 6 is a schematic diagram of the first area of the field of view in the middle area of the display system in Figure 1.

Fig. 7 is a schematic diagram of the fourth relationship between the vertical synchronization signal and the backlight driving current in the display system of Fig. 1, when the first area of the field of view is in the middle area.

Fig. 8 is a schematic diagram of the field of view moving from the first area to the third area in the display system of Fig. 1.

Fig. 9 is a schematic diagram of the corresponding time interval between the frame of the vertical synchronization signal and the field of view when the field of view is moved from the first area to the third area in the display system of Fig. 1.

FIG. 10 is a schematic diagram of the position shift of the waveform of the high-level current of the backlight driving current when the field of view is moved from the first area to the third area in the display system of FIG.

Figure 11 is a flow chart of the method for adjusting the motion blur effect performed by the display system of Figure 1.

FIG. 1 is a block diagram of an embodiment of the display system 100 capable of adjusting the motion blur effect of the present invention. The display system 100 includes a display panel 10, an image capture device 11, a control device 12, a processor 13, a backlight device 14 and a motion blur control unit 15. The display panel 10 is used for displaying images. The display panel 10 can be any form of display panel, such as a liquid crystal display (Liquid-Crystal Display, LCD) display panel, an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel, or active matrix organic light emitting A display panel of a diode (Active-Matrix Organic Light-Emitting Diode, AMOLED) display. The image capturing device 11 is used to track the eyeball position to generate eyeball position tracking information. The image capturing device 11 can be a camera or a video recorder, and can track the position of a human eye or both eyes. For example, the image capturing device 11 can continuously generate the eyeballs including the vertical axis (Vertical Axis) coordinates, the vertical axis (Longitudinal Axis) coordinates and the horizontal axis (Lateral Axis) coordinates corresponding to the eyeball position according to the pupil position of the human eye. Location tracking message. The control device 12 is coupled to the image capturing device 11 for virtually distinguishing the display panel 10 into at least two areas and receiving eyeball position tracking information. Here, the control device 12 can virtually divide the display panel 10 into at least two regions along the vertical axis. For example, the virtual area of the display panel 10 is divided into three areas with the same number of vertical pixels. However, the present invention does not limit the size of each area. The size of each area can also be defined by the user. The processor 13 is coupled to the control device 12 for obtaining the first area of the visual field corresponding to the eyeball position in at least two areas according to the eyeball position tracking information. The processor 13 can be any type of processing device, such as a microprocessor, a scaler, or a central processing unit. It is explained here that due to the limited field of view of the human eye, the hot zone or focus area of the field of view cannot cover the full screen. In other words, according to the result of tracking the eyeball position by the image capturing device 11, the processor 13 can estimate the current focus area of the human eye on the display panel 10 to enhance the image quality of the focus area. The backlight device 14 is used for generating a backlight signal according to the backlight driving current. The backlight device 14 can be any kind of light-emitting element, such as an incandescent bulb, a light-emitting diode (LED), a cold cathode fluorescent lamp (CCFL), and so on. The backlight signal generated by the backlight device 14, It can be transmitted to human eyes through the display panel 10. Therefore, human eyes can see the luminous image on the display panel 10. The dynamic fuzzy control unit 15 is coupled to the processor 13 and the display panel 10 for generating a backlight driving current to control the backlight device 14. The motion blur control unit 15 can use the function of Moving Picture Response Time (MPRT) to improve the dynamic image retention phenomenon of the display panel 10. In addition, the processor 13 can reduce the motion blur effect of the first region through the motion blur control unit 15 and adjust the motion blur effect of the second region outside the first region. In other words, the display system 100 can dynamically improve the image quality of the user's focus area (the first area) on the display panel 10 (decrease the dynamic blur effect). In addition, the dynamic blur effect is adjusted on the non-focused area (the second area) so that the average image brightness of the display panel 10 can meet the requirements. Therefore, the display system 100 can display a dynamic image that satisfies the low motion blur effect and the average brightness requirement at the same time. The details of the method for the display system 100 to adjust the motion blur effect will be described later.

FIG. 2 is a schematic diagram of the display panel 10 divided into multiple regions in the display system 100. To simplify the description, the display panel 10 will be divided into three areas for description. The processor 13 can virtually divide the display panel 10 into an upper area 10a, a middle area 10b, and a lower area 10c. The number of vertical pixels corresponding to the upper area 10a is X. The number of vertical pixels corresponding to the middle area 10b is Y. The number of vertical pixels corresponding to the lower area 10c is Z. X, Y, and Z can be the same or different positive integers. For example, when the resolution of the display panel 10 is 2560×1440 pixels. The total number of vertical pixels of the display panel 10 is 1440. The number X of vertical pixels corresponding to the upper area 10a may be 480. Therefore, the range of the index Xi of the vertical pixel corresponding to the upper area 10a can be 0≦Xi<480. The number Y of vertical pixels corresponding to the middle area 10b may be 480. Therefore, the range of the index Yi of the vertical pixel corresponding to the middle area 10b can be 480≦Yi<960. The number Z of vertical pixels corresponding to the lower area 10c may be 480. Therefore, the range of the index Zi of the vertical pixel corresponding to the lower area 10c can be 960≦Zi<1440. The first region R1 is the visual field of the human eye. Here, the first region R1 may correspond to the lower region 10c. However, the size of the first region R1 can also be adjusted according to the user's setting. For example, a user with a wider field of view (such as an e-sports player) can increase the size of the first area R1. In this way, the first region R1 can Corresponds to the middle area 10b and the lower area 10c. The second region R2 is a part of the region outside the first region R1. For example, in Figure 2, when the first region R1 corresponds to the lower region 10c, the second region R2 may be set to correspond to the upper region 10a. The second area R2 can be regarded as the non-focus area of the human eye.

FIG. 3 is a schematic diagram of the first relationship between the vertical synchronization signal Vsync and the backlight driving current BL in the display system 100 when the first area R1 of the field of view is in the lower area 10c. The first region R1 of the display panel 10 corresponds to the first time interval T1 of the vertical synchronization signal Vsync in the pixel active interval ACT. The second region R2 of the display panel 10 corresponds to the second time interval T2 of the vertical synchronization signal Vsync in the pixel active interval ACT. The first time interval T1 and the second time interval T2 do not overlap. Here, the vertical synchronization signal Vsync may be a periodic signal. The vertical synchronization signal Vsync includes a pixel active interval ACT and a blank interval BLK. The blank area BLK can be divided into Front Porch FP and Back Porch BP. The time length of the picture frame period F is equal to the sum of the time lengths of the front porch area FP, the pixel active area ACT and the back porch area BP. In other words, the total time length of the pixel active interval ACT and the blank interval BLK of the vertical synchronization signal Vsync is the frame period F of the picture. When the first area R1 of the field of view is in the lower area 10c, the processor 13 can control the motion blur control unit 15 to set the backlight driving current BL to a low level current in the first time interval T1 of the vertical synchronization signal Vsync to temporarily Turn off the backlight device 14. Since the backlight device 14 is temporarily turned off during the first time interval T1, the pixel transient phenomenon in the first region R1 of the field of view will be hidden. In other words, in the display panel 10, the motion blur effect of the lower area 10c of the first area R1 corresponding to the field of view can be reduced. The image quality of the first area R1 of the field of view will be improved. In addition, the processor 13 can control the dynamic fuzzy control unit 15 to set the backlight driving current BL to a high level current during the second time interval T2 and the blank interval BLK of the vertical synchronization signal Vsync. As shown in Figure 3, the vertical synchronization signal Vsync can be a high-level current in the enabling interval E1. In other words, the backlight device 14 is turned on in the enabling interval E1. It should be understood that the enabling interval E1 when the backlight device 14 is turned on overlaps with part of the pixel active interval ACT. However, the overlapping part (the second time interval T2) corresponds to the non-focused area of the human eye (the second area R2). Therefore, for users, although the non-focused area The pixels of the domain are transient, and the quality of the visual experience will not be reduced. Moreover, the longer the time that the backlight device 14 is turned on (the longer the enabling interval E1 is), the brighter the average screen brightness that the display panel 10 can support. In other words, the display system 100 can simultaneously satisfy an excellent visual experience and provide a display image that meets the average brightness requirement.

FIG. 4 is a schematic diagram of the second relationship between the vertical synchronization signal Vsync and the backlight driving current BL in the display system 100 when the field of view is in the first region R1. As mentioned above, the processor 13 can control the dynamic fuzzy control unit 15 to set the backlight driving current BL to a low level current in the first time interval T1 of the vertical synchronization signal Vsync to temporarily turn off the backlight device 14. In addition, the processor 13 can control the dynamic fuzzy control unit 15 to set the backlight driving current BL in the blank interval BLK (or a part thereof) of the vertical synchronization signal Vsync and a part of the second time interval T2 to a high level current. In other words, in Fig. 4, the backlight device 14 is in the on state in the enabling interval E2. Moreover, the difference between FIG. 4 and FIG. 3 is that the overlapping portion of the enabling interval E2 of the backlight device 14 and the pixel active interval ACT of the vertical synchronization signal Vsync is not limited to the second area R2 (upper area 10a) corresponding to The second time interval T2. More generally, the overlap between the enabling interval E2 of the backlight device 14 and the pixel active interval ACT of the vertical synchronization signal Vsync may be less than the second time interval T2, equal to the second time interval T2, or greater than the second time interval T2 . In other words, any technical adjustment that satisfies the setting of the backlight driving current BL to a low level current (turning off the backlight) in the first time interval T1 of the vertical synchronization signal Vsync belongs to the scope of the present invention.

FIG. 5 is a schematic diagram of the third relationship between the vertical synchronization signal Vsync and the backlight driving current BL in the display system 100 when the field of view is in the first region R1. Here, the processor 13 may also control the dynamic fuzzy control unit 15 to set the backlight driving current BL to a high level current only in the blank interval BLK of the vertical synchronization signal Vsync. In other words, in FIG. 5, the backlight device 14 is in the on state in the enabling interval E3. It should be understood that since the enabling interval E3 of the backlight device 14 is within the blank interval BLK of the vertical synchronization signal Vsync, the entire pixel active interval ACT of the vertical synchronization signal Vsync The dynamic blur effect is not obvious. In other words, when the backlight device 14 is only turned on in the blank interval BLK of the vertical synchronization signal Vsync, no matter whether the field of view is in the first region R1, the first region R1 moves to the second region R2, or the display panel 10 In any area, the visible dynamic blur effect is not obvious. However, in this way, the length of the turn-on time of the backlight device 14 will be limited by the blank interval BLK, so it is suitable for a lower average brightness demand mode.

FIG. 6 is a schematic diagram of the first area R1 of the field of view in the middle area 10b in the display system 100. As shown in FIG. 6, the first area R1 of the user's field of view can also be moved to the middle area 10b of the display panel 10. When the first area R1 corresponds to the middle area 10b, the second area R2 may correspond to the upper area 10a or the lower area 10c. The second region R2 is a part of the region outside the first region R1. However, the more preferable second region R2 can be set to correspond to the upper region 10a. The first area R1 can be the focus area of the human eye, and the second area R2 can be regarded as the non-focus area of the human eye. When the first area R1 of the field of view is in the middle area 10b, the adjustment and setting details of the backlight driving current BL will be described in detail later.

FIG. 7 is a schematic diagram of the fourth relationship between the vertical synchronization signal Vsync and the backlight driving current BL in the display system 100 when the first area R1 of the field of view is in the middle area 10b. The first region R1 of the display panel 10 corresponds to the first time interval T1 of the vertical synchronization signal Vsync in the pixel active interval ACT. The second region R2 of the display panel 10 corresponds to the second time interval T2 of the vertical synchronization signal Vsync in the pixel active interval ACT. The first time interval T1 and the second time interval T2 do not overlap. It should be understood that the rising edge of the vertical synchronization signal Vsync in the pixel active interval ACT corresponds to the first turning time FT1 when the pixels in the display panel 10 change from a steady state to a transient state. The falling edge portion of the vertical synchronization signal Vsync in the pixel active interval ACT corresponds to the second turning time FT2 when the pixels in the display panel 10 change from a transient state to a steady state. In other words, the pixels within the first turning time FT1 and the second turning time FT2 are not completely stable. And, the second turning time FT2 is greater than the first turning time FT1. When the first area R1 of the field of view is in the middle area 10b (close to the central area of the display panel 10 on the vertical axis), the processor 13 can control the motion blur control unit 15 to adjust the backlight drive current BL to the rise of the vertical synchronization signal Vsync Marginal part The time interval is set to high level current. For example, the backlight driving current BL can be set to a high level current in the enabling interval E4. Therefore, the backlight device 14 is turned on in the enabling interval E4. In addition, a part of the enabling interval E4 and the blank interval BLK and a part of the pixel active interval ACT corresponding to the rising edge of the vertical synchronization signal Vsync overlap. In Figure 7, since the second turning time FT2 is greater than the first turning time FT1, setting the enabling interval E4 to partially overlap with the first turning time FT1 is better than setting the enabling interval E4 to overlap with the second turning time FT1. Time FT2 partially overlaps. The reason is that in the enabling interval E4 when the backlight device 14 is turned on, the visible time of the pixel instability is relatively short. Therefore, for a person with a wider field of view, the dynamic blur effect of the display panel 10 at the edge will be less obvious.

FIG. 8 is a schematic diagram of the field of view moving from the first area R1 to the third area R3 in the display system 100. The first area R1 corresponds to the lower area 10c of the display panel 10. The third area R3 corresponds to the upper area 10a of the display panel 10. The field of view of the human eye will move over time. After the processor 13 obtains the first region R1 of the field of view corresponding to the eyeball position through the image capturing device 11 and the control device 12 for a period of time, if the field of view starts to move, the processor 13 can continuously track the field of view (eg The region R1 moves to the third region R3). As mentioned above, the image capturing device 11 can track the eyeball position. Therefore, the image capturing device 11 can also detect the corresponding movement path. In order to optimize the user’s visual experience, in Figure 8, when the field of view is moved from the first region R1 to the third region R3, the processor 13 can also use the motion blur control unit 15 to lower the display panel 10 The motion blur effect (using the aforementioned method of reducing the motion blur effect) shifts from the first region R1 to the third region R3. In addition, the first region R1 and the third region R3 are two different regions. The method for the display system 100 to shift the range of the reduced motion blur effect will be described in detail later.

FIG. 9 is a schematic diagram of the corresponding time interval between the frame F1 to FN of the vertical synchronization signal Vsync and the field of view when the field of view is moved from the first area R1 to the third area R3 in the display system 100. As mentioned above, the field of view of the human eye will move with time. Therefore, when the display panel 10 displays different picture frames, the moving positions of the field of view are also different. To simplify the description, the field of view moved The mode will be explained in a vertical linear movement mode. In FIG. 9, when the vertical synchronization signal Vsync is in the first frame F1, the field of view is located in the first area R1 (lower area 10c). When the vertical synchronization signal Vsync is in the second frame F2, the field of view gradually moves from the first area R1 to the third area R3. By analogy, when the vertical synchronization signal Vsync is in the Nth frame FN, the field of view is located in the third region R3 (upper region 10a). In other words, within the time length of N picture frames, the field of view can be moved from the first region R1 to the third region R3. N is a positive integer.

FIG. 10 is a schematic diagram of the position shift of the waveform of the high-level current of the backlight driving current when the first area R1 of the field of view moves to the third area R3 in the display system 100. Since the display system 100 is designed to reduce the dynamic blur effect of the image in the field of view, the backlight driving current BL can be adjusted according to the movement of the field of view. In FIG. 10, the backlight driving current BL ₁ is set to a high level current (initial setting) in the fourth time interval T4. As mentioned above, the high-level current should avoid the first time interval T1 corresponding to the first region R1 of the field of view in the fourth time interval T4. However, as the field of view gradually moves from the first region R1 to the third region R3, the processor 13 may control the motion blur control unit 15 to shift the waveform of the high-level current from the fourth time interval T4 to the fifth time interval T5. The fourth time interval T4 does not overlap with the first time interval T1 corresponding to the first region R1, and the fifth time interval T5 does not overlap with the third time interval T3 corresponding to the third region R3. For example, the waveform of the high-level current in the backlight driving current may shift M times from the fourth time interval T4 to the fifth time interval T5, as described below. The position corresponding to the waveform of the high-level current in the fourth time interval T4 is Xa (position on the time axis). The waveform of the high-level current corresponds to the position Xb in the fifth time interval T5. The number of moves M is a positive integer. Therefore, the offset D of a single movement of the waveform of the high-level current can be derived as: D=(Xb-Xa)/M

Therefore, the total offset of the high-level current waveform in the first movement is D. The total offset of the high-level current waveform in the second movement is 2×D. By analogy, the total offset of the high-level current waveform in the M-th movement is M×D. After M moves, the waveform position of the high-level current can be expressed as: Xa+(M×D)=Xa+M×(Xb-Xa)/M=Xb

In other words, the processor 13 can control the dynamic fuzzy control unit 15 to gradually shift the waveform of the high-level current from the fourth time interval T4 to the fifth time interval T5 by using a linear offset function. Since the time range for the backlight device 14 to turn on the backlight can be gradually shifted, the brightness displayed by the display panel 10 will also be adjusted smoothly, which can effectively avoid the unpleasant phenomenon of screen flicker.

In addition, the method of shifting the waveform of the high-level current of the backlight driving current in the present invention is not limited to the above-mentioned parameters. For example, when the waveform of the high-level current moves from the position Xa to the specific position Xc, the processor 13 may use the M'movement procedure and the single movement offset D'to execute the offset procedure, and satisfy Xc=Xa+(M'×D') linear offset function. In addition, the number of moves M'and the offset amount D'of a single movement can also be adjusted according to actual conditions.

FIG. 11 is a flowchart of the method for adjusting the motion blur effect performed by the display system 100. The method for adjusting the motion blur effect includes step S111 to step S115. Any reasonable technical changes belong to the scope disclosed by the present invention. Steps S111 to S115 are described below.

Step S111: Divide the display panel 10 into at least two areas; Step S112: Use the image capturing device 11 to track the eyeball position to generate eyeball position tracking information; Step S113: Obtain one of the at least two areas according to the eyeball position tracking information The first region R1 of the eyeball position corresponding to the field of view; step S114: reduce the motion blur effect of the first region R1; step S115: adjust the motion blur effect of the second region R2 outside the first region R1.

The details of step S111 to step S115 have been described in detail above, so they will not be repeated here. In the display system 100, the backlight driving current used to drive the backlight device 14 is not limited. After the processor 13 virtually divides the display panel 10 into at least two areas, it reduces or eliminates the dynamic blur effect of the focus area of the user's eyes. The display system 100 will also continuously monitor the eyeball position Tracking to dynamically set the area of the display panel 10 where the motion blur effect needs to be reduced. Therefore, the user's visual experience will be improved.

In summary, the present invention describes a method for adjusting the dynamic blur effect and a display system capable of adjusting the dynamic blur effect. The display system uses an image capture device to capture the eyeball position and obtain the field of view. Then, the display system can adjust the backlight drive current to reduce the dynamic blur effect in the field of view. Moreover, the display system can also continuously track the eyeball position to update the field of view, and instantly reduce the dynamic blur effect in the field of view. Therefore, for the user, when the field of view moves to any area of the screen, high-quality images can be seen. Therefore, the display system of the present invention can increase the quality of the user's visual experience.

The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

10: Display panel

10a: Upper area

10b: Middle area

10c: Lower area

X, Y and Z: the number of vertical pixels

R1: First zone

R2: second area

Claims (16)

A method for adjusting the dynamic blur effect includes: dividing a display panel into at least two areas along a vertical axis; tracking an eyeball position using an image capturing device to generate eyeball position tracking information; according to the eyeball Position tracking information to obtain a first area corresponding to a field of view of the eyeball position in the at least two areas; set a backlight device at an opening timing of the display panel in the vertical axis to reduce the first area If the first area is close to a central area of the display panel on a vertical axis, a time interval of a rising edge part of a backlight driving current corresponding to a vertical synchronization signal is set to a high level Current to adjust a motion blur effect of a second area outside the first area; wherein the first area of the display panel corresponds to a vertical synchronization signal in a first time interval within a pixel active interval, the The second area of the display panel corresponds to a vertical synchronization signal in a second time interval in the pixel active interval, the first time interval does not overlap the second time interval, and the vertical synchronization signal is in the pixel active interval The rising edge part corresponds to a first turning time when the pixel in the display panel changes from a steady state to a transient state, and the vertical synchronization signal corresponds to a falling edge part of the pixel active interval in the display panel. A second turning time when the pixel changes from a transient state to a steady state, and the second turning time is greater than the first turning time. The method according to claim 1, wherein the display panel is equally divided into the at least two regions along the vertical axis, and the display panel is equally divided into three regions along the vertical axis, And the eyeball position tracking message includes a vertical axis coordinate, a vertical axis coordinate and a horizontal axis coordinate corresponding to the eyeball position. The method according to claim 1, wherein a backlight driving current is a low-level current in the first time interval of the vertical synchronization signal to reduce the motion blur effect in the first region. The method according to claim 3, further comprising: setting the backlight driving current to a high-level current in a part of the second time interval and a blank interval of the vertical synchronization signal; wherein the frame of the vertical synchronization signal The sum of a time length of the prime active interval and the blank interval is a period length of a picture frame. The method according to claim 3, further comprising: after the field of view of the eyeball position stays in the first area, setting the backlight driving current in a blank interval of the vertical synchronization signal and a part of the second time interval Is a high-level current; and if the field of view of the eyeball position moves to the second area, the backlight driving current is set to a high-level current only in the blank interval of the vertical synchronization signal. The method according to claim 1, further comprising: after obtaining the first area of the visual field corresponding to the eyeball position in the at least two areas for a period of time, obtaining the corresponding other areas in the at least two areas A third area of another field of view of an eyeball position; and shifting the reduced motion blur effect from the first area to the third area; wherein the first area and the third area are two different area. The method according to claim 6, wherein the shifting of the motion blur effect to be reduced from the first area to the third area is to set a backlight driving current in a fourth time interval to a micro motion After the bit current, a waveform of the high-level current is shifted from the fourth time interval to a fifth time interval, where the fourth time interval does not overlap with a first time interval corresponding to the first area, and The fifth time interval does not overlap with a third time interval corresponding to the third area. The method according to claim 7, wherein after the backlight driving current is set to the high-level current in the fourth time interval, the waveform of the high-level current is shifted from the fourth time interval to the The fifth time interval is to set the backlight driving current to the high-level current in the fourth time interval, and use a linear offset function to change the waveform of the high-level current from the fourth time interval Gradually shift to the fifth time interval. A display system with the ability to adjust dynamic blur effects includes: a display panel for displaying images; an image capturing device for tracking an eyeball position to generate eyeball position tracking information; and a control device coupled to the An image capture device for dividing the display panel into at least two areas along a vertical axis and receiving the eyeball position tracking information; a processor coupled to the control device for tracking according to the eyeball position Information to obtain a first area corresponding to a field of view of the eyeball position in the at least two areas; a backlight device for generating a backlight signal according to a backlight driving current; and a motion blur control unit, coupled to The processor and the display panel are used to generate the backlight driving current to control the backlight device, and use a dynamic non-blur function to improve the dynamic residual image phenomenon of the display panel; wherein the processor sets the backlight through the motion blur control unit Arranged at an opening timing of the display panel in the vertical axis to reduce a motion blur effect of the first area and adjust a motion blur effect of a second area outside the first area; and The first area of the display panel corresponds to a vertical synchronization signal in a first time interval in a pixel active interval, and the second area of the display panel corresponds to a vertical synchronization signal in a pixel active interval. The second time interval, the first time interval and the second time interval do not overlap, the rising edge of the vertical synchronization signal in the pixel active interval corresponds to the pixel in the display panel changing from a steady state to a temporary A first turning time of the state, the vertical synchronization signal in a falling edge part of the pixel active interval corresponds to a second turning time of the pixels in the display panel from a transient state to a steady state, the second The turning time is greater than the first turning time, and if the first area is close to a central area of the display panel on a vertical axis, the processor controls the motion blur control unit to correspond to the backlight driving current to the vertical synchronization signal A time interval of the rising edge is set to a high level current. The system according to claim 9, wherein the control device divides the display panel into three areas along the vertical axis, and the eyeball position tracking information includes a vertical axis coordinate corresponding to the eyeball position, and a vertical axis. Axis coordinates and a horizontal axis coordinates. The system according to claim 9, wherein the processor controls the motion fuzzy control unit to set the backlight driving current to a low level current in the first time interval of the vertical synchronization signal. The system according to claim 11, wherein the processor controls the motion fuzzy control unit to set the backlight driving current in a part of the second time interval and a blank interval of the vertical synchronization signal to a Micro Motion Bit current, and the sum of a time length of the pixel active interval and the blank interval of the vertical synchronization signal is a period length of a picture frame. The system according to claim 11, wherein after the field of view of the eyeball position stays in the first area, the processor controls the motion blur control unit so that the backlight driving current is in a blank interval of the vertical synchronization signal and A part of the second time interval is set to a high level current, and if the field of view of the eyeball position moves to the second area, the processor controls the motion blur control unit so that the backlight driving current is only in the vertical The blank interval of the synchronization signal is set to a high level current. The system according to claim 9, wherein the processor obtains the first area of the field of view corresponding to the eyeball position of the at least two areas through the image capturing device and the control device for a period of time, and then Obtain a third area of the at least two areas corresponding to another field of view of the other eyeball position, shift the reduced motion blur effect of the display panel from the first area to the third area, and The first area and the third area are two different areas. The system according to claim 14, wherein the processor controls the dynamic fuzzy control unit to set the backlight driving current to a high-level current in a fourth time interval, and then a waveform of the high-level current is changed from The fourth time interval is shifted to a fifth time interval, the fourth time interval does not overlap with a first time interval corresponding to the first area, and the fourth time interval corresponds to a fifth time interval corresponding to the third area. The time intervals do not overlap. The system according to claim 15, wherein the processor controls the dynamic fuzzy control unit to use a linear offset function to gradually shift the waveform of the high-level current from the fourth time interval to the fifth time interval Time interval.

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