TWI439991B - Overdrive apparatus and associated method for display system - Google Patents

Description

Drive enhancement device and related method applied to display system

The present invention relates to a drive overdrive device and related method for a display system, and more particularly to a drive enhancement device and a drive enhancement device capable of providing different drive enhancement tables for different scan lines of a video frame with a reduced memory configuration. method.

Display systems, such as liquid crystal display systems, have become one of the most important human-machine interfaces in modern electronic systems. How to achieve high-performance display systems at a lower cost has become the focus of research and development of modern electronics manufacturers.

The display system is provided with a plurality of display units; these display units are arranged in a plurality of scanning lines. When one frame of the image signal is displayed, each display unit arranged on the same scan line corresponds to each pixel (pixel) arranged in the same horizontal line in the frame. For example, each display unit can display different shades of color on a primary color (such as red, green, or blue) to display one of the three primary color components of the corresponding pixel.

According to the timing requirements of the image display, the display system will update the frame sequentially, such as updating the fth frame to the (f+1)th frame. When the frame is updated, the display system updates each scan line one by one, updates the first scan line first, then continues to update the second scan line after completion, and so on. When updating a scan line, the color gradation corresponding to each display unit of the scan line should be updated from the gradation C(f) in the fth frame to the (f+1)th according to the content of the image data. The color scale C(f+1) in the frame. However, due to the display The timing response of the cell changing color gradation is slow, and cannot be quickly updated from the color gradation C(f) to C(f+1) according to the timing requirement.

In order to improve the response speed of the display unit, an overdrive technology is employed when driving the display system. When the display unit is changed from the gradation C(f) to the gradation C(f+1), the drive enhancement technique actually changes the display unit drive to the gradation (C(f+1)+dC). For example, when the color gradation C(f+1) is greater than the gradation C(f), the gradation dC can be made larger than 0; when the display unit is driven toward a higher gradation (C(f+1)+dC) When changing, it will reach the level C(f+1) required by the image display faster. Similarly, when the gradation C(f+1) is smaller than the gradation C(f), the gradation dC can be made smaller than 0 when the display unit is driven toward a lower gradation (C(f+1)+dC). When changing, the level C (f+1) required for the image display is reached faster. In actual implementation, the size of the color level dC can be found by checking a drive enhancement table. For example, the drive enhancement table may determine the positive and negative and numerical magnitudes of the color gradation dC by a combination of color gradations C(f) and C(f+1).

In many applications, the timing requirements for different scan line updates vary. In some applications, although the display system updates each scan line one by one while updating the frame, the updated frame will not be uniformly presented until all the scan lines in the frame have been updated. For example, in some applications of three-dimensional imaging, the display system alternately displays the left frame and the right frame with a display panel and shutter-type glasses. When the display panel displays the left frame, the glasses open the left eye and shield the right eye, and the left frame is presented to the left eye of the user; next, the display panel displays the right frame, and the glasses simultaneously open the right eye and shield the left side. Eye, let the display system present the right frame to the user's right eye. Applying this principle, users can feel three-dimensional imaging.

However, in the aforementioned three-dimensional imaging application, the display system needs to complete the updating of the entire frame (in conjunction with the opening or shielding of the glasses) to be uniformly presented to the user, so as to avoid mixing the left and right frames and affecting the stereoscopic visual effect. Therefore, the timing requirements for different scan line updates vary. When the last scan line of the frame is updated, the update of the entire frame is completed and can be uniformly presented, so the last scan line needs to have a faster response speed because the time difference from update to presentation is the shortest. In contrast, for other scan lines, the response speed can be slower because the time difference between the scan lines being individually updated to the unified presentation is longer. For example, the response speed of the first scan line can be the slowest because the time difference between its update to unified presentation is the longest; the time difference of the second scan line is second, the response speed should be slightly faster, and so on. . When the last scan line is reached, the time difference is the shortest and the response speed should be the fastest.

For applications where different scan lines have different response speeds, the drive enhancement technique also requires different drive enhancement tables for different scan lines.

The invention provides a driving enhancement device and a related method for applications in which different scanning lines have different response speeds, and the complex structure of the image frame is simple, low cost, low power consumption, low layout area and high-performance hardware architecture. The corresponding driver enhancement table is provided in the area.

One of the objectives of the present invention is to provide a driving enhancement device for a display system to provide a corresponding driving enhancement table for a plurality of regions of an image frame; the driving enhancement device is provided with an indicating unit and a plurality of memories (such as random Access memory) and an access circuit. Each memory can be stored Save a driver enhanced table. The indicating unit is configured to provide an indication signal corresponding to one of the scan lines in the image frame. The access circuit reads a first driving enhancement table from the first memory according to the indication signal, and loads a second driving enhancement table into the second memory, wherein the first driving enhancement table and the The second driving enhancement table respectively corresponds to one of the first area and the second area.

In an embodiment, the access circuit further reads a fourth driving enhancement table from a third memory, and a computing circuit receives the first driving enhancement table and the fourth driving read by the access circuit. The table is enhanced, and a corresponding driving value is respectively provided for the plurality of display units in the first area.

Another object of the present invention is to provide a driving enhancement method for a display system to provide a corresponding driving enhancement table for a plurality of regions of an image frame. The driving enhancement method includes: providing an indication signal corresponding to the image frame. a scan line; and reading a first drive enhancement table from a first memory according to the indication signal, and loading a second drive enhancement table into a second memory, wherein the first drive The enhancement table and the second drive enhancement table respectively correspond to one of the first region and the second region.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

Referring to Figure 1, it is intended to illustrate one embodiment of the application of the present invention. Scan lines L(1), L(2) through L(i), and even L(I) are used to present an image frame. When it is to be updated from the frame F(f-1) to the next frame F(f), Each of the scanning lines L(1) to L(I) is sequentially updated by the scanning line L(1). As shown in Fig. 1, the scanning line L(1) starts the image data of the frame F(f-1) at the time point t(1) (the first icon is shown as L(1)@F(f-1)) It is driven to update the image data of frame F(f) (L(1)@F(f-1)). After the scan line L(1) is updated, the next scan line L(2) starts to update at the time point t(2), and so on; the scan line L(i) starts to update at the time point t(i), the scan line L(I) waits until the later time point t(I) to start updating.

As discussed earlier, in many applications, such as three-dimensional imaging applications, all scan lines L(1) through L(I) have to be updated to frame F(f) before they are uniformly integrated. Presented to the viewer, that is, the time frame T(f) after the time point t(I) presents the frame F(f) that has been completely updated. Before the time period T(f), when some of the scan lines L(1) to L(I) are not updated, the frames that are not completely updated should not be presented. For example, before the time point t(i), only the scan lines L(1) to L(i-1) are updated to the image of the frame F(f), and the scan lines L(i) to L(I) remain before. The image of a frame F(f-1) is not updated, so this incompletely updated frame should not be presented at this time.

In the foregoing application, since the scan lines are updated one by one, the time differences from the start of updating to the unified presentation of the respective scan lines are also different from each other. For example, the scan line L(1) starts to update at the time point t(1), and there is a time difference D(1) between the time point t(1) and the uniformly presented time period T(f). The time point t(2) at which the scanning line L(2) starts to update is relatively late, so the time difference D(2) between it and the time period T(f) is smaller than the time difference D(1), and so on; For L(i), the time difference D(i) is relatively shorter. Up to the scan line L(I), the time difference D(I) between the time point t(I) at which the update starts to the time period T(f) is the shortest. Since the time difference corresponding to each scan line is different, the response speed requirement for each scan line is also Different, it is necessary to carry out different drive enhancements for different scan lines. The present invention can be adapted to the needs of such applications with a streamlined and efficient memory configuration.

Referring to Figure 2, illustrated is an embodiment of the drive enhancement device 10 of the present invention applied to a display system 12. Display system 12 has a plurality of scan lines, each of which has a plurality of display units (not shown) to combine the images of a frame. In the scan line L(s) to the (s+N*K-1)th scan line of the scan lines, each K scan lines can be regarded as a group to form an area; in an embodiment , K can be a power of 2. For example, the scan lines L(s) to L(s+K-1) can be divided into groups G(1), and the next K scan lines L(s+K) to L(s+2*K-1) ) belongs to the next group G(2), and so on, in the nth group G(n) there is a scan line L(s+(n-1)*K) to L(s+n*K-1) The last Nth group G(N) is formed by the scan line L(s+(N-1)*K) to L(s+N*K-1).

In an embodiment of the invention, the driving enhancement device 10 is provided with an indicating unit 11, a non-volatile memory 14, an access circuit 16, and three volatile memories R(1) to R(3) ( For example, it is a static random access memory) and a calculation circuit 18. The indicating unit 11 generates a corresponding indication signal according to the data of a certain scanning line currently processed by the driving enhancement device 10 to the image frame to correspond to the scanning line of the image frame. The access circuit 16 can sequentially provide corresponding drive enhancement tables UP and DN for each scan line in each group G(1) to G(N) according to the indication signal. The calculation circuit 18 calculates a corresponding drive value for each display unit in each scan line according to the indication signal and the drive enhancement tables UP and DN provided by the access circuit 16. As shown in Figure 2, when each scan line in group G(1) is to be updated, access to the power The path 16 may provide the drive enhancement tables OD(1) and OD(2) for the group G(1) to serve as the enhanced drive tables UP and DN for interpolation, respectively; when the scan lines of the group G(2) are to be updated The access circuit 16 then provides the drive enhancement tables OD(2) and OD(3) for the group G(2) as the enhanced drive tables UP and DN, and so on. That is, for the group G(n) (n is one of 1 to N), the access circuit 16 provides the drive enhancement tables OD(n) and OD(n+1) according to the indication signal to respectively As the drive enhancement table UP and DN for interpolation.

In an embodiment of the invention, the operation of the computing circuit 18 can be described as follows. For a certain scan line L(s+(n-1)*K+i) in group G(n) (where i is one of 0 to (K-1)), when one of the scan lines When the display unit is to be updated from the gradation C(f) in the fth frame to the gradation C(f+1) in the (f+1)th frame, the calculation circuit 18 can be based on the gradation C(f) In combination with C(f+1), look up the two corresponding values dCup and dCdn in the drive enhancement table UP and DN, respectively, and then according to the two interpolation weights a(i) and (1-a(i)) The interpolation calculates a color gradation dC=a(i)*dCup+(1-a(i))*dCdn, and the gradation (C(f+1)+dC) can be used as the driving value of the display unit. In other words, when the display unit is enhanced to drive the update, the display unit can be driven toward the color gradation (C(f+1)+dC) so that the response speed of changing the color gradation can be expected.

When the calculation circuit 18 performs the above interpolation calculation, the value of the interpolation weight a(i) is between 0 and 1, and the value thereof may vary with the index i; that is, different scan lines may correspond to the internal difference weights of different values. a(i), in an embodiment, the footer i is changed according to the indication signal. For example, the value of the interpolated weight a(i) may decrease as the index i increases. That is to say, even if each scan line in the same group uniformly refers to the same group of drive enhancement table UP and DN, but with the effect of interpolation weights, different scan lines can still correspond to different levels of drive enhancement. In addition, when the access circuit 16 respectively supplies the drive enhancement tables UP and DN for different groups based on the respective drive enhancement tables OD(1) to OD(N+1), the respective drive enhancement tables OD(1) to OD(N) +1) can also be different; that is, for a two-drive enhancement table OD(n1) and OD(n2) (where n1 is different from n2), there is at least one specific set of gradations C(f And C(f+1), the two corresponding values found in the two-drive enhancement table of this particular set of levels are different. Since each of the drive enhancement tables OD(1) to OD(N+1) is different, different groups G(1) to G(N) also correspond to different drive enhancement levels. Combined with the variation of the distinct drive enhancement table OD(1) to OD(N+1) and the interpolation weight a(i), the scan lines L(s) to L(s+N*K-1) are respectively provided. Drives of varying degrees are enhanced. On the other hand, each of the scanning lines before the scanning line L(s) can share the same driving enhancement table (for example, the driving enhancement table OD(1)), and each of the scanning lines L (s+N*K-1) The scan line can share another drive enhancement table (such as the drive enhancement table OD(N+1)).

The drive enhancement tables OD(1) to OD(N+1) can be stored in the non-volatile memory 14. When the driving enhancement device 10 starts to operate and updates the driving values for the respective scanning lines L(s) to L(s+N*K-1) one by one with the image timing, the driving enhancement corresponding to each scanning line (or each group) is enhanced. The tables UP and DN should be loaded into volatile, fast access memory so that the calculation circuitry 18 can efficiently perform lookups and operations. The memory R(1) to R(3) in the driving enhancement device 10 is used to provide a fast access memory memory space to support the operation of the computing circuit 18; wherein each memory R(1) to R (3) One of the drive enhancement tables OD(1) to OD(N+1) may be separately stored (temporarily stored). It is worth emphasizing that although driving the enhanced table OD(1) to OD(N+1) The total number of motion enhancement tables can be much larger than 3 (that is, N is greater than 2), but in the embodiment of FIG. 2, the present invention can be used quickly and efficiently using only three memories R(1) through R(3). Connect the driver enhancement tables required for each group update.

Continuing the embodiment of Fig. 2, the operation of the drive enhancement device 10 of the present invention for providing the drive enhancement table for each group of scan lines by the memories R(1) to R(3) can be schematically illustrated in Fig. 3. First, when the indication signals correspond to the respective scan lines in the group G(1), the drive enhancement tables OD(1) to OD(3) may be respectively loaded by the non-volatile memory 14 (Fig. 2). To memory R(1) to R(3); when each scan line in group G(1) is to be updated, access circuit 16 can be enhanced by read drive in memory R(1) and R(2) Tables OD(1) and OD(2) are used as the drive enhancement tables UP and DN of the group G(1). The calculation circuit 18 performs the calculation of the drive values for each display unit in each scan line of the group G(1) according to the indication signal and the drive enhancement tables UP and DN.

Next, when the scan lines in the group G(1) have been updated one by one and it is the turn of each scan line in the group G(2), the indication signal system starts to correspond one by one to the group G(2). For each scan line, the access circuit 16 reads the drive enhancement tables OD(2) and OD(3) as the drive enhancement tables UP and DN of the group G(2) from the memories R(2) and R(3), respectively. At the same time, the drive enhancement table OD(4) is preloaded into the memory R(1) by the non-volatile memory 14. The calculation circuit 18 performs the calculation of the drive values for each display unit in each scan line of the group G(2) according to the indication signal and the drive enhancement tables UP and DN.

When the indication signal corresponds to each scan line in the group G(3), since the drive enhancement table OD(4) has been loaded into the memory R(1), the access circuit 16 can be directly used by the memory R ( 3) read the drive enhancement tables OD(3) and OD(4) with R(1) as the drive enhancement tables UP and DN required for the group G(3), respectively. The drive enhancement table OD(5) required for the group G(4) is also preloaded into the memory R(2), so that the calculation circuit 18 can be the group G according to the indication signal and the drive enhancement table UP and DN. Each of the display lines of (3) performs calculation of the drive value.

According to the same principle, when the indication signal indicates that the group G(4) is to be updated, the access circuit 16 can read the drive enhancement tables OD(4) and OD(5) from the memories R(1) and R(2), respectively. As the drive enhancement table UP and DN, the drive enhancement table OD(6) required for the group G(5) is also loaded into the memory R(3). The calculation circuit 18 calculates the drive values for each display unit in each scan line of the group G(4) according to the indication signal and the drive enhancement tables UP and DN.

In other words, according to the scanning line update progress indicated by the indication signal, when updating the group G(n), the access circuit 16 can be separately read and driven by two of the memories R(1) to R(3). The table OD(n) and OD(n+1) are enhanced to support the drive enhancement tables UP and DN required by the group G(n), and the drive enhancement table OD required for the next group G(n+1) (n+2) (that is, the drive enhancement table DN of the group G(n+1)) is preloaded into the memory of another original storage drive enhancement table OD(n-1). In this way, when the next group G(n+1) is to be updated, the required drive enhancement tables OD(n+1) and OD(n+2) (group G(n+1) respectively) The drive enhancement table UP and DN) are already prepared in the memory R(1) to R(3), can be accessed immediately, seamlessly connect the progress of the scan line update, and do not waste time driving the enhanced table OD(n+2) is loaded into the memory by the non-volatile memory 14.

As illustrated in Figure 3, if the footer n of the group G(n) can be written in the form of (3*k-2) (that is, mod(n,3)=1, for example, n=1 Or 4, etc.), then its corresponding driver enhancement table UP and DN (that is, drive increase) The strong table OD (3*k-2) and OD (3*k-1) are preloaded into the memories R(1) and R(2); when the access circuit 16 reads the two memories When R(1) and R(2) support the operation of the calculation circuit 18, the drive enhancement table OD(3*k) is also loaded from the non-volatile memory 14 into the memory R(3).

Similarly, if the footer n of the group G(n) can be written in the form of (3*k-1) (that is, mod(n,3)=2, such as n=2 or 5, etc.), then The corresponding drive enhancement tables UP and DN (that is, the drive enhancement tables OD (3*k-1) and OD (3*k)) are preloaded into the memories R(2) and R(3); When the fetch circuit 16 reads the memory R(2) and R(3) to update each scan line in the group G(3*k-1), the drive enhancement table OD(3*k+1) is also loaded. To the memory R (1).

Similarly, if the footer n of the group G(n) can be written in the form of (3*k) (that is, mod(n,3)=0), then its corresponding driver enhancement table UP and DN (that is, The drive enhancement tables OD(3*k) and OD(3*k+1) are preloaded into the memories R(3) and R(1); when the access circuit 16 reads the memory R(3) When R(1) is used to update each scan line in the group G (3*k), the drive enhancement table OD (3*k+2) is also loaded into the memory R(2).

Continuing with the embodiments of Figures 2 and 4, Figure 4 illustrates an embodiment of the operational flow 100 of the drive enhancement device 10 of the present invention. The main steps in process 100 can be described as follows:

Step 102: Start. The drive enhancement device 10 begins to control the display of the display system 12 (Fig. 2).

Step 104: Start updating a frame according to the image data, and the indicating unit 11 generates a corresponding indication signal according to the data of a certain scan line currently processed by the driving enhancement device 10 to correspond to the image frame. The scan line. As discussed in FIG. 2, in the same frame, since the scan lines L(s) to L(s+N*K-1) are updated in units of groups, this step can be performed first. Each of the scanning lines before the scanning line L(s) (that is, the scanning lines L(1) to L(s-1), not shown) is updated.

Step 106: Start scanning line enhancement driving and updating in units of groups. First, the initial value of the footer n is set, and the scanning lines of the group G(n) are started to be updated according to the indication signal.

Step 108A: For the group G(n), the access circuit 16 reads the drive enhancement table OD(n) from the memory R(mod(n-1,3)+1) to provide interpolation for the calculation circuit 18. The enhancement table UP is driven, and the drive enhancement table OD(n+1) is read from the memory R(mod(n, 3)+1) to provide another drive enhancement table for interpolation.

Step 110A: For a certain scan line L(s+(n-1)*K+i) in the group G(n), the calculation circuit 18 uses the access circuit 16 to check the read of the drive enhancement table UP and DN. The table is interpolated using the interpolation weight a(i) to calculate a corresponding drive value for each display unit on the scan line.

Step 108B: It is determined whether the driver group enhancement table OD(n+2) required for the next group G(n+1) is to be preloaded. If preloading is to be performed, the process 100 may proceed to step 110B.

Step 110B: When step 110A is performed, the access circuit 16 can simultaneously load the drive enhancement table OD(n+2) to the memory R (mod(n+1, 3)+1).

Step 112: Whether all the scan lines L (s+(n-1)*K) in the group G(n) have been updated to L(s+n*K-1). If there is still a scan line to be updated in the group G(n), then the process returns to steps 108A and 108B, so that the calculation circuit 18 is again The look-up is performed via the access circuit 16 and an interpolation calculation is performed to provide drive values for the respective display units on the other scan line. If each display unit of all the scan lines in the group G(n) has been driven and updated according to the corresponding drive value, the process proceeds to step 114.

Step 114: Determine if there are still groups to be updated. If yes, proceed to step 116; if all of the scan lines of the groups G(1) through G(N) have been driven to update, proceed to step 118.

Step 116: Update the value of the footer n to point to the next group to be processed.

Step 118: End the frame update. Since the groups G(1) to G(N) cover the scan lines L(s) to L(s+N*K-1), in this step, the remaining scan lines in the same frame can continue (ie, The scan values are calculated and updated for each scan line after the scan line L (s+N*K-1) until all the scan lines of the same frame have been updated.

Step 120: If the other frame is to be updated, the process returns to step 104; if not, the process proceeds to step 122.

Step 122: End the process 100.

In summary, compared with the prior art, the present invention can provide a different degree of driving enhancement for different scanning lines with a simplified hardware memory configuration, thereby reducing hardware cost, power consumption and layout area. And effectively improve operational efficiency. The drive enhancement device of the present invention can be implemented on a control/drive wafer of a display panel, and the functions of the calculation circuit 18 can be implemented by software, hardware or firmware.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. Those having ordinary skill in the art to which the present invention pertains can be made in various ways without departing from the spirit and scope of the invention. Change and retouch. Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Drive Enhancement

11‧‧‧Instruction unit

12‧‧‧Display system

14‧‧‧ Non-volatile memory

16‧‧‧Access circuit

18‧‧‧Computation circuit

100‧‧‧ Process

102-122‧‧‧Steps

R(1)-R(3)‧‧‧ memory

OD(1)-OD(N+1), UP, DN‧‧‧ drive enhancement table

L(s)-L(s+N*K-1), L(1)-L(I)‧‧‧ scan lines

G(1)-G(N)‧‧‧ groups

t(1)-t(I)‧‧‧

F(f-1)-F(f+1)‧‧‧ frame

D(1)-D(I) ‧ ‧ time difference

T(f)-T(f+1)‧‧‧

Figure 1 illustrates an application embodiment of the present invention.

Figure 2 illustrates an embodiment of the drive enhancement device of the present invention.

Fig. 3 is a view showing an operational embodiment of the drive augmentation device of Fig. 2.

Fig. 4 is a view showing an operational flow of the driving enhancement device of Fig. 2;

10‧‧‧Drive Enhancement

11‧‧‧Instruction unit

12‧‧‧Display system

14‧‧‧ Non-volatile memory

16‧‧‧Access circuit

18‧‧‧Computation circuit

R(1)-R(3)‧‧‧ memory

OD(1)-OD(N+1), UP, DN‧‧‧ drive enhancement table

L(s)-L(s+N*K-1)‧‧‧ scan line

G(1)-G(N)‧‧‧ groups

Claims (19)

A driving enhancement device is provided for respectively providing a corresponding differential drive table for a plurality of regions in an image frame, the device comprising: an indicating unit for providing an indication signal corresponding to the image image a scan line of a frame; a first memory; a second memory; and an access circuit, according to the indication signal, reading a first drive enhancement table from the first memory, and The second driving enhancement table is loaded into the second memory, wherein the first driving enhancement table and the second driving enhancement table respectively correspond to one of the first region and the second region. The driving enhancement device of claim 1, wherein the first memory and the second memory system are volatile memories, and the driving enhancement device further comprises: a non-volatile memory for storing the first a drive enhancement table and the second drive enhancement table; wherein the access circuit loads the second drive enhancement table from the non-volatile memory into the second memory. The driving enhancement device of claim 1, wherein the access circuit reads the second from the second memory when the indication signal is changed to another scan line in the image frame. Drive the enhanced table, and A third drive enhancement table is loaded to the first memory. The driving enhancement device of claim 1 further includes a third memory, and the access circuit reads the first driving enhancement table from the first memory according to the indication signal, A fourth drive enhancement table is read out from the three memories, and the second drive enhancement table is loaded into the second memory. The driving enhancement device of claim 4, further comprising: a calculating circuit, receiving the first driving enhancement table and the fourth driving enhancement table read by the accessing circuit, and determining the first region The plurality of display units in the plurality provide a corresponding driving value. The driving enhancement device of claim 5, wherein the calculating circuit determines an interpolation weight according to the indication signal, and the first driving enhancement table and the fourth driving enhancement read by the access circuit The table performs an interpolation calculation to provide the corresponding driving values for each of the plurality of display units on each scan line in the first region. The driving enhancement device of claim 1, wherein the image frame is included in a three-dimensional image signal. Such as the drive enhancement device of claim 1 of the patent scope, wherein Each of these regions includes a plurality of horizontal scan lines. A driving enhancement method for respectively providing a corresponding differential driving enhancement table for a plurality of regions in an image frame, the method comprising: providing an indication signal corresponding to one scan line in the image frame; The first driving enhancement table is read from a first memory, and a second driving enhancement table is loaded into a second memory, wherein the first driving enhancement table and the second driving The enhanced watch system corresponds to one of the first area and the second area. The driving enhancement method of claim 9, wherein when the indication signal is changed to another scanning line in the image frame, the method further comprises: reading the second reading from the second memory The second drive enhancement table loads a third drive enhancement table to the first memory. The driving enhancement method of claim 9, wherein the step of reading the first driving enhancement table from the first memory according to the indication signal further comprises: reading one from a third memory The fourth drive enhancement table. The driving enhancement method of claim 11 further includes: performing an interpolation calculation according to the first driving enhancement table and the fourth driving enhancement table to provide a corresponding correspondence for the plurality of display units in the first region Drive value. The driving enhancement method of claim 12, further comprising: determining an interpolation weight according to the indication signal to correspond to one of the scan lines in the first region, the interpolation weight being used in the interpolation calculation. The driving enhancement method of claim 9, wherein the first memory and the second memory system are volatile memories, the driving enhancement device further comprising: storing the first driving enhancement table and the second driving The enhancement is in a non-volatile memory; wherein the second drive enhancement watch is loaded from the non-volatile memory to the second memory. The driving enhancement method of claim 9, wherein the image frame is included in a three-dimensional image signal. The driving enhancement method of claim 9, wherein each of the regions includes a plurality of horizontal scanning lines. A driving enhancement device is provided for respectively providing a corresponding differential driving enhancement table for a plurality of regions in an image frame, the device comprising: an indicating unit for providing an indication signal corresponding to one of the image frames a scan line; and an access circuit for reading a read from a first memory according to the indication signal The first driving enhancement table loads a second driving enhancement table into a second memory, wherein the first driving enhancement table and the second driving enhancement table respectively correspond to one of the first regions And a second area. The drive enhancement device of claim 17, wherein the access circuit further reads a third drive enhancement table from a third memory, the drive enhancement device further comprising: a calculation circuit for receiving the access circuit And reading the first driving enhancement table and the third driving enhancement table, and respectively providing a corresponding driving value for the plurality of display units in the first region. The driving enhancement device of claim 18, wherein the calculating circuit determines an interpolation weight according to the indication signal, and the first driving enhancement table and the fourth driving enhancement read by the access circuit The table performs an interpolation calculation to provide the corresponding driving values for each of the plurality of display units on each scan line in the first region.