TWI608386B - Scanning method for touch panel and display panel - Google Patents

Description

Touch panel and display panel scanning method

The present invention relates to a method for scanning a panel, and more particularly to a method for scanning a touch panel and a display panel.

With the development of technology, various electronic devices continue to evolve. Among them, many electronic devices are equipped with a touch panel and a display panel at the same time. The touch panel is disposed on the display panel, and the user can directly select or mark the screen displayed on the display panel to provide a user-friendly humanized operation interface.

Both the touch panel and the display panel are driven through a plurality of driving lines. Since the touch panel and the display panel are mostly overlapped, the scanning circuit block of the touch panel and the display panel can adopt a common design, an overlapping design, or a design adjacent to the display. However, the driving of the touch panel and the display panel may interfere with each other regardless of the design of the shared design, the overlapping design, or the design of the adjacent arrangement. In order to avoid mutual interference, the scanning frequency of the touch panel and the display panel may be limited to be consistent, and affect the operation performance of the touch panel and the display panel.

Therefore, how to provide a touch panel and display panel scanning method To improve mutual interference and maintain operational performance is one of the topics that the industry is currently working on.

The invention relates to a scanning method of a touch panel and a display panel, which uses steps of frequency ratio and time slot to change the scanning order, so that the touch panel and the display panel can improve the mutual interference phenomenon and maintain the operation performance.

According to a first aspect of the present invention, a scanning method of a touch panel and a display panel is proposed. The touch panel has a plurality of first line blocks, and the display panel has a plurality of second line blocks. Each of the first line blocks interferes with each of the corresponding second line blocks. The scanning method includes the following steps. Calculating a frequency ratio of one of the first scanning frequency of the touch panel relative to one of the second scanning frequencies of the display panel. The first scanning frequency is not equal to the second scanning frequency. Differentiating the first line blocks and the second line blocks according to the frequency ratio corresponds to the plurality of time slots. The scanning order of the first line blocks is periodically sorted sequentially, and the scanning order of the second line blocks is periodically ordered in sequence. The overlap of each of the first line blocks and the corresponding respective second line blocks is analyzed. And if at least one first line block overlaps with the corresponding second line block, changing a scanning order of the at least one first line block or the overlapped at least one second line block. The changed scan order of the first line blocks or the second line blocks has periodicity.

According to a second aspect of the present invention, a scanning method of a touch panel and a display panel is proposed. The touch panel has a plurality of first line blocks. Display panel There are a plurality of second line blocks, and each of the first line blocks interferes with each of the corresponding second line blocks. The scanning method includes the following steps. Calculating a frequency ratio of one of the first scanning frequency of the touch panel relative to one of the second scanning frequencies of the display panel. The first scanning frequency is not equal to the second scanning frequency. The frequency ratio is N1/N2, and the N1/N2 system is the simplest score. Differentiating the first line blocks and the second line blocks according to the frequency ratio corresponds to the plurality of time slots. Each time slot corresponds to N1 first line blocks, and each time slot corresponds to N2 second line blocks. The scanning order of the first line blocks is periodically sorted sequentially, and the scanning order of the second line blocks is periodically ordered in sequence. The overlap between each of the first line blocks and each of the second line blocks is analyzed. If at least two first line blocks overlap with the corresponding second line blocks, the scanning order of the at least two first line blocks or the overlapped at least two second line blocks is mutually exchanged. The changed scan order of the first line blocks or the second line blocks has periodicity.

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:

100‧‧‧ touch panel

110‧‧‧Touch Driver Module

111‧‧‧Display monitoring unit

120‧‧‧display driver module

200‧‧‧ display panel

B1~B12‧‧‧ line block

L1~L12‧‧‧second line block

LF‧‧‧ display panel time period

S‧‧‧ feedback signal

S101~S106, S201~S203‧‧‧ steps

T1~T12‧‧‧ first line block

TF‧‧‧ touch panel time period

TS0‧‧‧ idle time slot

TS1~TS12‧‧‧ slot

FIG. 1A is a circuit diagram of a touch panel and a display panel.

FIG. 1B is a flow chart showing a scanning method of the touch panel and the display panel.

FIG. 2 is a schematic diagram showing the scanning sequence of the first line block and the second line block.

FIG. 3 is a diagram showing the operation of the first line block and the second line block of the second line in FIG. 2 .

FIG. 4 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

FIG. 5 is a diagram showing the operation of the first line block and the second line block in FIG. 4 .

Figures 6-7 show other operational maps of the first line block and the second line block at any time slot.

Figures 8-9 show other operational maps of the first line block and the second line block at any time slot.

FIG. 10 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

FIG. 11 is a diagram showing the operation of the first line block and the second line block in FIG. 10 .

Figures 12 to 18 show other operational maps of the first line block and the second line block at any time slot.

FIG. 19 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

Figure 20 is a diagram showing the operation of the first line block and the second line block of the 19th figure.

FIG. 21 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

Figure 22 is a diagram showing the operation of the first line block and the second line block of the 21st picture.

23 and 24 are diagrams showing other operations of the first line block and the second line block at any time slot.

Figure 25 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

Figure 26 is a diagram showing the operation of the first line block and the second line block at the time slot of Fig. 25.

Figure 27 is a diagram showing other operations of the first line block and the second line block at any time slot.

FIG. 28 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

Figure 29 is a diagram showing the operation of the first line block and the second line block of the time slot of Fig. 28.

FIG. 30A is another circuit diagram of the touch panel and the display panel.

FIG. 30B is another flow chart showing a scanning method of the touch panel and the display panel

FIG. 31 is a schematic diagram showing the scanning sequence of the first line block and the second line block.

Figure 32 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

FIG. 33 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

Figure 34 is a schematic diagram showing another scanning sequence of the first line block and the second line block.

In the following, various embodiments are described in detail, which use a frequency ratio and a time slot to change the scanning order, so that the touch panel and the display panel can improve the mutual interference phenomenon and maintain the operation performance. However, the examples are for illustrative purposes only and are not intended to limit the scope of the invention. Further, the drawings in the embodiments are omitted to partially illustrate the technical features of the present invention.

Please refer to FIG. 1A , which illustrates a circuit diagram of the touch panel 100 and the display panel 200 . The touch panel 100 is electrically connected to a touch driving module 110 , and the display panel 200 is electrically connected to a display driving module 120 . The touch driving module 110 is used to drive the touch panel 100 , and the display driving module 120 is used to drive the display panel 200 . Referring to FIG. 1B again, a flow chart of the scanning method of the touch panel 100 and the display panel 200 is illustrated. Many electronic devices are equipped with the touch panel 100 and the display panel 200 at the same time. The touch panel 100 is used for the user to click and mark on the touch panel 100 in a contact or non-contact manner by using a finger or a stylus to form an input control signal. The touch panel 100 is, for example, a resistive touch panel, a capacitive touch panel, an acoustic wave touch panel, an optical (infrared) touch panel, and an electromagnetic induction touch panel.

The display panel 200 is configured to display a screen, such as a liquid crystal display panel or an organic light emitting diode display panel.

The touch panel 100 is disposed on the display panel 200, and the user can directly select or mark the screen displayed on the display panel 200 to provide a user-friendly humanized operation interface.

In the trend of the electronic device pursuing lightness and shortness, the scanning circuit block of the touch panel 100 and the display panel 200 may adopt a common design, an overlapping design, or a neighboring setting. meter. Through the scanning method of the embodiment, whether the design of the shared design, the overlapping design, or the adjacent arrangement is adopted, the driving of the touch panel 100 and the display panel 200 are not interfered with each other, and the touch panel 100 and the display can be maintained. The operational performance of the panel 200.

Please refer to FIG. 2, which shows a scanning sequence diagram of the first line blocks T1~T12 and the second line blocks L1~L12. The touch panel 100 has a plurality of first line blocks T1 T T12, and the display panel 200 has a plurality of second line blocks L1 L L12, and each of the first line blocks T1 T T12 interferes with each of the corresponding second line blocks. L1~L12. For example, the first line block T1 may interfere with the second line block L1, the first line block T2 may interfere with the second line block L2, and so on.

The interference may be that the first line block T1~T12 and the second line block L1~L12 adopt a common design, an overlapping design, or a neighboring design. Referring to FIG. 3, the operation map of the first line blocks T1 to T12 and the second line blocks L1 to L12 of the second line block TS1 to TS12 in FIG. 2 is shown. In the case of a common design, the first line blocks T1 to T12 and the second line blocks L1 to L12 share the line blocks B1 to B12, respectively. At any point in time, any of the line blocks B1 B B12 may not be used by the touch panel 100 or the display panel 200 at the same time.

In an embodiment, the first scanning frequency of the touch panel 100 may be equal to the second scanning frequency of the display panel 200. The touch panel 100 may sequentially scan the first line blocks T1 to T12 from the first line block T1. The display panel 200 can sequentially scan the second line blocks L2 LL12 and L1 from the second line block L2. In this way, it can be avoided that any one of the line blocks B1 B B12 is used by the touch panel 100 or the display panel 200 at the same time.

In an embodiment, the first scanning frequency of the touch panel 100 may not be equal to The second scanning frequency of the display panel 200. The operation of this scanning method will be described in detail below through the flowchart of FIG. 1B.

In step S101 , a frequency ratio of the first scanning frequency of the touch panel 100 to the second scanning frequency of the display panel 200 is calculated. The first scanning frequency is not equal to the second scanning frequency. For example, referring to FIG. 2 , when the frequency ratio is twice, the primary time period LF of the display panel 200 corresponds to the two time periods TF of the touch panel 100 . In general, the touch panel 100 requires a higher first scanning frequency to maintain the sensitivity of the touch sensitivity.

In step S102, the first line blocks T1 to T12 are divided into a plurality of time slots TS1 to TS12 according to the frequency ratio, and the second line blocks L1 to L12 are distinguished from the plurality of time slots TS1 to TS12. In this step, if the frequency ratio is N1/N2 and N1/N2 is the simplest score, each time slot TS1~TS12 corresponds to N1 first line blocks T1~T12, and each time slot TS1~TS12 corresponds. In N2 second line blocks L1~L12. Taking FIG. 2 as an example, when the frequency ratio is 2/1, each time slot TS1~TS12 corresponds to two first line blocks T1~T12, and each time slot TS1~TS12 corresponds to one second line block L1. ~L12.

The scanning method provided in this embodiment is applicable to the case where N2 is equal to 1 (ie, the frequency ratio is an integer), N2 is an integer greater than 1 (ie, the frequency ratio is a non-integer), and N1 is greater than N2 (ie, the touch panel 100) The case where the first scanning frequency is greater than the second scanning frequency of the display panel 200 or N1 is less than N2 (ie, the first scanning frequency of the touch panel 100 is smaller than the second scanning frequency of the display panel 200). In the embodiment of Fig. 2, the case where N2 is equal to 1 and N1 is equal to 2 is taken as an example. The remaining various cases are described separately in other embodiments.

In this step, the number of planned time slots TS1~TS12 is substantially equal to the number of shared line blocks B1~B12. And, when scanning each time slot TS1~TS12 They are essentially equal.

In step S103, the scanning order of the first line blocks T1~T12 is periodically sorted sequentially, and the scanning order of the second line blocks L1~L12 is sequentially sorted in sequence. As shown in FIG. 2 , in the two time periods TF of the touch panel 100 , the scanning order of the first line blocks T1 T T12 is substantially sequentially sorted along a first direction; one of the display panels 200 In the time period LF, the scanning order of the second line blocks L1 L L12 is substantially sequentially sorted along a second direction. The first direction and the second direction may be the same or different. In this embodiment, the first direction and the second direction are both the same direction from left to right.

In step S104, the overlap of each of the first line blocks T1 to T12 and the respective second line blocks L1 to L12 is analyzed. Wherein, in the same scanning time, the first line blocks T1 T T12 and the second scanning lines L1 L L12 have the same numerical number, that is, the overlap. As shown by the dotted circle of FIG. 2, the first line block T1 overlaps with the second line block L1, so that the touch panel 100 and the display panel 200 share the same line block B1 at the same time. The first line block T12 is overlapped with the second line block L12, so that the touch panel 100 and the display panel 200 share the same line block B12 at the same time. The remaining first line blocks T2~T11 are not overlapped with the corresponding second line blocks L2~L12, respectively.

In an embodiment of step S104, if there is no overlap between the first line blocks T1 T T12 and the second line blocks L1 L L12, it is not necessary to change the order of any of the first line blocks T1 T T12.

In step S105, if at least one of the first line blocks T1 to T12 overlaps with the corresponding second line blocks L1 to L12, at least one of the first line blocks T1 to T12 (or at least one) is overlapped. The scanning order of the second line block L1~L12) is, for example, a change To another time slot TS1~TS12. As shown in FIG. 2, the scanning order of the first line block T1 is changed from the time slots TS1 and TS7 to the time slots TS6 and TS12; the scanning order of the first line block T12 is changed from the time slots TS6 and TS12 to the time slot TS1. , TS7. In this way, each of the first line blocks T1 to T12 does not overlap with the corresponding second line blocks L1 to L12.

After the order is changed, for the display panel 200, the second line block L1 to the second line block L12 are sequentially scanned from the time slot TS1 to the time slot TS12. For the touch panel 100, the first line block T12 is scanned first, then scanned from the first line block T2 to the first line block T11, and finally the first line block T1 is scanned. The scan order after the change of the first line block T1~T12 is still periodic.

In this step, the scanning order of the first line blocks T1 and T12 can be arbitrarily changed to another time slot TS1~TS12, as long as the first line blocks T1 and T12 do not overlap the corresponding second line block L1, respectively. L12 can be. If the number of the overlapped at least one first line block T1~T12 is greater than or equal to two, in this step, the overlapped first line blocks T1~T12 can be directly exchanged with each other in the scanning order.

Referring to FIG. 3, in the time slot TS1, the line block B1 is used by the display panel 200, and the line blocks B12 and B12 are used by the touch panel 100 without collision. In the time slot TS12, the line block B12 is used by the display panel 200, and the line blocks B11 and B1 are used by the touch panel 100 without collision.

That is to say, after the change order of step S105, no collision occurs in all of the time slots TS1 to TS12.

In another embodiment, the scanning method may further include step S106. In step S106, the scanning order of the at least one first line block T1~T12 that does not overlap is changed, for example, Change to another time slot TS1~TS12. Referring to FIG. 4, another scanning sequence diagram of the first line blocks T1 T T12 and the second line blocks L1 L L12 is shown. In this step, not only the scanning order of the overlapped first line blocks T1, T12 but also the scanning order of the adjacent first line blocks T2, T11 can be changed. The scanning order of the first line blocks T1, T2 is changed from the time slots TS1, TS7 to the time slots TS6, TS12; the scanning order of the first line blocks T11, T12 is changed from the time slots TS6, TS12 to the time slots TS1, TS7. In this way, each of the first line blocks T1 to T12 does not overlap the corresponding second line blocks L1 to L12.

Referring to FIG. 5, the operation map of the first line blocks T1 to T12 and the second line blocks L1 to L12 of the fourth line block T1 to TS12 is shown. In the time slot TS1, the line block B1 is used by the display panel 200, and the line blocks B11 and B12 are used by the touch panel 100 without collision. In the time slot TS12, the line block B12 is used by the display panel 200, and the line blocks B1 and B2 are used by the touch panel 100 without collision.

Similar to the manner of step S106, and so on. Please refer to the sixth to seventh figures, which show other operation corresponding diagrams of the first line block T1~T12 and the second line block L1~L12 at any time slots TS1~TS12. The number of scanning sequences for changing the first route blocks T1 to T12 is not limited to the above embodiment. In FIG. 6, the scanning order of the adjacent two first line blocks T2 and T3 of the overlapped first line block T1 is further changed, and the adjacent two first line areas of the overlapped first line block T12 are changed. The scanning order of blocks T10 and T11. In FIG. 7, the scanning order of the adjacent three first line blocks T2 to T14 of the overlapped first line block T1 is further changed, and the adjacent three first line areas of the overlapped first line block T12 are changed. The scanning order of blocks T9~T11.

In addition, in step S103, the first direction and the second direction of the first line blocks T1 T T12 and the second line blocks L1 L L12 may be opposite. Please refer to pictures 8~9, which are shown Other operation maps of the first line blocks T1 to T12 and the second line blocks L1 to L12 at any time slots TS1 to TS12. In Figures 8-9, the first direction is from right to left, and the second direction is from left to right, and the first direction is not the same as the second direction. Similar to the above steps, in the embodiment of Fig. 8, no overlap is found in step S104, so there is no need to change the order of any of the first line blocks T1 to T12. In the embodiment of Fig. 9, although no overlap is found in step S104, the non-overlapping first line blocks T4 to T5 can be changed from the time slots TS5 and TS4 to the time slot TS6.

In the above embodiment, the frequency ratio N1/N2 is 2/1 as an example, and the following is an example in which the frequency ratio is 3/1. Please refer to FIG. 10 , which illustrates another scanning sequence of the first line blocks T1 T T12 and the second line blocks L1 L L12 . When the frequency ratio is three times, the primary time period LF of the display panel 200 corresponds to the three time periods TF of the touch panel 100. As shown by the dotted circle in FIG. 10, the first line blocks T1, T7, and T12 are respectively overlapped with the second line blocks L1, L7, and L12, respectively, so that the touch panel 100 and the display panel 200 share the same line at the same time. Blocks B1, B7, B12.

The scanning sequence of the first line block T1 located in the time slots TS1, TS5, TS9 is exchanged with the first line block T12 located in the time slots TS4, TS8, TS12; and will be located first in the time slots TS2, TS6, TS10 The scanning order of the line block T6 is exchanged with the first line block T7 located in the time slots TS3, TS7, TS11. In this way, each of the first line blocks T1 to T12 does not overlap with the corresponding second line blocks L1 to L12.

Please refer to FIG. 11 , which shows the operation corresponding diagram of the first line blocks T1 T T12 and the second line blocks L1 L L12 of the first line block TS1 ~ TS12 in FIG. 10 . At any point in time, any of the line blocks B1 to B12 will not be simultaneously touched by the touch panel 100 or the display panel. 200 adopted.

For the same reason, please refer to the figure 12~18, which shows other operation corresponding diagrams of the first line block T1~T12 and the second line block L1~L12 time slots TS1~TS12. When the frequency ratio is 3/1, in addition to the embodiment of Fig. 11, the embodiment of Figs. 12 to 18 can also be employed.

In the above embodiment, the frequency ratio N1/N2 is 2/1 and 3/1, and the following is an example in which the frequency ratio is 4/1. Referring to FIG. 19, another scanning sequence diagram of the first line block T1~T12 and the second line block L1~L12 is shown. When the frequency ratio is 4 times, the primary time period LF of the display panel 200 corresponds to the four time periods TF of the touch panel 100. As shown by the dotted circle of FIG. 19, the first line blocks T1, T4, T8, and T12 are respectively overlapped with the second line blocks L1, L4, L8, and L12, respectively, causing the touch panel 100 and the display panel 200 to be simultaneously Share the same line block B1, B4, B8, B12.

The scanning sequence of the first line block T1 located in the time slots TS1, TS4, TS7, TS10 is exchanged with the first line block T12 located in the time slots TS3, TS6, TS9, TS12; and will be located in the time slots TS1, TS4, TS7 The scanning sequence of the first line block T4 of the TS10 is exchanged with the first line block T8 located in the time slots TS2, TS5, TS8, TS11; and the first line block located in the time slots TS2, TS5, TS8, TS11 The scanning sequence of T5 is exchanged with the first line block T9 located in the time slots TS3, TS6, TS9, TS12. In this way, each of the first line blocks T1 to T12 does not overlap with the corresponding second line blocks L1 to L12.

Referring to FIG. 20, the operation map of the first line blocks T1 to T12 and the second line blocks L1 to L12 of the second line blocks TS1 to TS12 in FIG. 19 is shown. At any point in time, any of the line blocks B1 to B12 will not be simultaneously touched by the touch panel 100 or the display panel. 200 adopted.

In the above embodiment, the frequency ratio N1/N2 is 2/1, 3/1, and 4/1, and the following is an example in which the frequency ratio is 1/2. Referring to FIG. 21, another scanning sequence diagram of the first line blocks T1 T T12 and the second line blocks L1 L L12 is illustrated. When the frequency ratio is 0.5 times, the two time periods LF of the display panel 200 correspond to the one time period TF of the touch panel 100. As shown by the dotted circle of FIG. 21, the first line blocks T1 and T12 are respectively overlapped with the second line blocks L1 and L12, respectively, so that the touch panel 100 and the display panel 200 share the same line block B1 at the same time. B12.

The scanning sequence of the first line block T1 located in the time slot TS1 is exchanged with the first line block T12 located in the time slot TS12. In this way, all the first line blocks T1~T12 do not overlap the second line blocks L1~L12.

Referring to FIG. 22, the operation map of the first line blocks T1 to T12 and the second line blocks L1 to L12 of the second line blocks TS1 to TS12 in FIG. 21 is shown. At any point in time, any of the line blocks B1 B B12 may not be used by the touch panel 100 or the display panel 200 at the same time.

For the same reason, please refer to the 23rd and 24th drawings, which show other operation corresponding diagrams of the first line blocks T1~T12 and the second line blocks L1~L12 of the time slots TS1~TS12. When the frequency ratio is 1/2, in addition to the embodiment of Fig. 22, the embodiments of Figs. 23 and 24 can also be employed.

In the above embodiment, the frequency ratio N1/N2 is 2/1, 3/1, 4/1, 1/2, and the following is an example in which the frequency ratio is 3/2. Referring to FIG. 25, another scanning sequence diagram of the first line block T1~T12 and the second line block L1~L12 is shown. The frequency ratio is 1.5 In time, the two time periods LF of the display panel 200 correspond to the three time periods TF of the touch panel 100. As shown by the dotted circle of FIG. 25, the first line blocks T1, T2, T11, and T12 are respectively overlapped with the second line blocks L1, L2, L11, and L12, respectively, causing the touch panel 100 and the display panel 200 to be simultaneously The same line block B1, B2, B11, B12 is shared.

The scanning order of the first line blocks T1, T2 located in the time slots TS1, TS5, TS9 is exchanged with the first line blocks T11, T12 located in the time slots TS4, TS8, TS12. In this way, all the first line blocks T1~T12 do not overlap the second line blocks L1~L12.

Please refer to FIG. 26, which shows the operation corresponding diagram of the first line blocks T1~T12 and the second line blocks L1~L12 of the second line blocks TS1~TS12 in FIG. At any point in time, any of the line blocks B1 B B12 may not be used by the touch panel 100 or the display panel 200 at the same time.

For the same reason, please refer to FIG. 27, which shows other operation corresponding diagrams of the first line block T1~T12 and the second line block L1~L12 time slots TS1~TS12. When the frequency ratio is 3/2, in addition to the embodiment of Fig. 26, the embodiment of Fig. 27 can also be employed.

In the above embodiment, the frequency ratio N1/N2 is 2/1, 3/1, 4/1, and 3/2, and the following is an example in which the frequency ratio is 5/2. Referring to FIG. 28, another scanning sequence diagram of the first line blocks T1 T T12 and the second line blocks L1 L L12 is illustrated. When the frequency ratio is 2.5 times, the two time periods LF of the display panel 200 correspond to the five time periods TF of the touch panel 100. As shown by the dotted circle of FIG. 28, the first line blocks T1, T4, T5, T8, T9, and T12 are respectively overlapped with the second line blocks L1, L4, L5, L8, L9, and L12, respectively, causing touch The panel 100 and the display panel 200 share the same line blocks B1, B4, B5, B8, B9, and B12 at the same time.

The scanning order of the first line blocks T1, T4, T5, T8, T9, and T12 is changed so that all the first line blocks T1 to T12 do not overlap the second line blocks L1 to L12.

Please refer to FIG. 29, which shows the operation corresponding diagram of the first line blocks T1~T12 and the second line blocks L1~L12 of the second line blocks TS1~TS12 in FIG. At any point in time, any of the line blocks B1 B B12 may not be used by the touch panel 100 or the display panel 200 at the same time.

The above-mentioned design is planned by using the static adjustment method before the touch panel 100 and the display panel 200 are scanned. In another embodiment, the touch panel 100 and the display panel 200 may be scanned by using a dynamic adjustment manner. In the process, dynamic planning is performed on the fly. Please refer to FIG. 30A , which illustrates another circuit diagram of the touch panel 100 and the display panel 200 . The touch panel 100 is electrically connected to a touch driving module 110 , and the display panel 200 is electrically connected to a display driving module 120 . The touch driving module 110 is used to drive the touch panel 100 , and the display driving module 120 is used to drive the display panel 200 . The touch driving module 110 includes a display monitoring unit 111. The display monitoring unit 111 is configured to monitor a feedback signal S transmitted by the display driving module 120 or the system end. The feedback signal S is, for example, a vertical synchronization signal (VSYNC), a horizontal synchronization signal (HSYNC), A BLANK signal or an idle/active signal. Through the feedback signal S, the display monitoring unit 111 can analyze the scanning states of the second line blocks L1 L L5 (for example, shown in Figures 32 to 35).

Referring to FIGS. 30B and 31, FIG. 30B illustrates another flow chart of the scanning method of the touch panel 100 and the display panel 200, and FIG. 31 illustrates the first line blocks T1 to T5 and the second line block L1. Schematic diagram of the scan sequence of ~L5. The following is a detailed flow chart through Figure 31. Describe in detail how the scanning method works dynamically.

In step S201, the second line blocks L1 to L5 are sequentially scanned at the second scanning frequency. For example, referring to FIG. 31, from the time slots TS1 to TS5, the second line blocks L1 to L5 are sequentially scanned.

In step S202, the display monitoring unit 111 analyzes the scanning states of the second line blocks L1 to L5. For example, when the slot is TS2, the display monitoring unit 111 analyzes that the second line block L2 is scanned, and the second line blocks L1, L3~L5 are in an idle state.

In step S203, the display monitoring unit 111 dynamically adjusts the scanning order of the first line blocks T1~T5 according to the scanning state of the second line blocks L1~L5, and periodically scans the first one at a first scanning frequency. In the line blocks T1 to T5, the scanning sequence after the change of the first line blocks T1 to T5 has periodicity.

Taking FIG. 31 as an example, the display monitoring unit 111 analyzes that the second line block L1 is being scanned at the beginning of the first period of the first line block T1~T5 (the dotted line of the time slot TS1), and then adjusts The scanning order of the first line blocks T1 to T5 is started by the first line block T2. Thereby, the scanning sequence of the first period of the first line block T1~T5 is the first line block T2, the first line block T3, the first line block T4, the first line block T5, the first line Block T1.

Next, the display monitoring unit 111 analyzes that the second line block L3 is being scanned at the beginning of the second period of the first line block T1~T5 (the dotted line of the time slot TS3), and then adjusts the first line block. The scanning order of T1~T5 is started by the first line block T4. Thereby, the scanning sequence of the first period of the first line block T1~T5 is the first line block T4, the first line block T5, the first line block T1, the first line block T2, and the first line Block T3.

Then, and so on, the display monitoring unit 111 forms a periodic scanning sequence in two cycles in the first line blocks T1 to T5.

The embodiment of the above-mentioned Fig. 31 is described by taking a frequency ratio of 2/1, and the following is an example of a frequency ratio of 3/1. Referring to FIG. 32, another scanning sequence diagram of the first line blocks T1 T T5 and the second line blocks L1 L L5 is illustrated.

The display monitoring unit 111 analyzes that the second line block L1 is being scanned at the beginning of the first period of the first line block T1~T5 (the dotted line of the time slot TS1), and then adjusts the first line block T1~ The scanning sequence of T5 is started by the first line block T2. Thereby, the scanning sequence of the first period of the first line block T1~T5 is the first line block T2, the first line block T3, the first line block T4, the first line block T5, the first line Block T1.

Next, the display monitoring unit 111 analyzes that the second line block L2 is being scanned at the beginning of the second period of the first line block T1~T5 (the dotted line of the time slot TS2), and then adjusts the first line block. The scanning order of T1~T5 is started by the first line block T3. Thereby, the scanning sequence of the first period of the first line block T1~T5 is the first line block T3, the first line block T4, the first line block T5, the first line block T1, the first line Block T2.

Then, the display monitoring unit 111 analyzes that the second line block L4 is being scanned at the beginning of the third period of the first line block T1~T5 (the dotted circle of the time slot TS4), and then adjusts the first line block. The scanning order of T1~T5 is started by the first line block T5. Thereby, the scanning sequence of the first period of the first line block T1~T5 is the first line block T5, the first line block T1, the first line block T2, the first line block T3, the first line Block T4.

Then, and so on, the display monitoring unit 111 forms a periodic scanning sequence in three cycles in the first line blocks T1 to T5.

Please refer to FIG. 33, which shows another scanning sequence diagram of the first line blocks T1~T5 and the second line blocks L1~L5. In another embodiment, the display monitoring unit 111 can further analyze the idle time slot TS0 of the display panel 200 according to the feedback signal S. The second line blocks L1 to L5 are not scanned in the idle time slot TS0, but are sequentially scanned in the time slots TS1 to TS5. A portion of the first line block T1~T5 is scanned in the idle time slot TS0. That is to say, the first line blocks T1~T5 can be scanned in the idle time slot TS0 and the time slots TS1~TS5. In this way, the chance of collision between the first line block T1~T5 and the second line block L1~L5 can be reduced.

As shown in Fig. 33, the first line blocks T1 to T5 are sequentially scanned. During the scanning of the first lines T1 to T5, the display monitoring unit 111 dynamically analyzes that the virtual coils of the time slot TS4 collide, and immediately adjusts the scanning order of the first line blocks T1 to T5.

Referring to FIG. 34, another scanning sequence diagram of the first line block T1~T5 and the second line block L1~L5 is shown. In another embodiment, all of the first line blocks T1 to T5 may be arranged to be scanned in the idle time slot TS0. In this way, collisions between the first line blocks T1 to T5 and the second line blocks L1 to L5 can be effectively avoided.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

S101~S106‧‧‧Steps

Claims (18)

A scanning method for a touch panel and a display panel, the touch panel having a plurality of first line blocks, the display panel having a plurality of second line blocks, each of the first line block interferences corresponding to each of the second a circuit block, the scanning method includes: calculating a frequency ratio of a first scanning frequency of the touch panel relative to a second scanning frequency of the display panel, the first scanning frequency is not equal to the second scanning frequency; The frequency ratio is different from the first line block and the second line blocks corresponding to the plurality of time slots; the scanning order of the first line blocks is periodically sorted sequentially, and sequentially sorted sequentially a scanning sequence of the second line blocks; analyzing an overlap between each of the first line blocks and the corresponding second line blocks; and if at least one of the first line blocks and the corresponding at least one of the And overlapping the second line blocks, and changing the scanning order of the at least one of the first line blocks or the overlapping at least one of the second line blocks, the first line blocks or the second lines Block change Scan sequence having a periodicity. The method for scanning a touch panel and a display panel according to claim 1, wherein in the step of distinguishing the time slots, the frequency ratio is N1/N2, and the N1/N2 system is a minimum score. Each of the time slots corresponds to N1 first line blocks, and each time slot corresponds to N2 second line blocks. For example, the touch panel and the display panel are scanned as described in claim 2 Tracing method, where N2 is equal to 1. The scanning method of the touch panel and the display panel according to claim 2, wherein N2 is an integer greater than 1. The scanning method of the touch panel and the display panel according to claim 2, wherein N1 is greater than N2. The scanning method of the touch panel and the display panel according to claim 2, wherein N1 is smaller than N2. The scanning method of the touch panel and the display panel according to claim 1, wherein the scanning time of each of the time slots is substantially equal. The method for scanning a touch panel and a display panel according to claim 1, wherein in the step of sequentially sorting the scan order of the first line block and the second line blocks, the The scanning sequence of a line block is substantially sequentially sorted along a first direction, and the scanning order of the second line blocks is substantially sequentially sorted along a second direction, the first direction being the same as the second direction. The method for scanning a touch panel and a display panel according to claim 1, wherein in the step of sequentially sorting the scan order of the first line block and the second line blocks, the The scanning sequence of a line block is substantially sequentially sorted along a first direction, and the scanning order of the second line blocks is substantially sequentially sorted along a second direction, the first direction being different from the second direction. The scanning method of the touch panel and the display panel according to claim 1, wherein the step of changing the scanning order is to change the scanning order of the at least one of the first line blocks to another time slot. The scanning method of the touch panel and the display panel according to claim 1, wherein the number of the at least one of the first line blocks overlapped is greater than or equal to two, and the step of changing the scanning order overlaps The first line blocks exchange scan orders with each other. The scanning method of the touch panel and the display panel according to the first aspect of the invention, further comprising: changing a scanning order of the at least one of the first line blocks that do not overlap. The scanning method of the touch panel and the display panel according to claim 12, wherein the step of changing the scanning order is to change the scanning order of at least one of the first line blocks that does not overlap to another time slot. A scanning method for a touch panel and a display panel, the touch panel having a plurality of first line blocks, the display panel having a plurality of second line blocks, each of the first line block interferences corresponding to each of the second The scanning method includes: calculating a frequency ratio of a first scanning frequency of the touch panel relative to a second scanning frequency of the display panel, the first scanning frequency being not equal to the second scanning frequency, The frequency ratio is N1/N2, and N1/N2 is the simplest score; the first line block and the second line block are corresponding to the plurality of time slots according to the frequency ratio, and each time slot corresponds to N1 first line blocks, each time slot corresponding to N2 second line blocks; periodically scanning the scanning order of the first line blocks, and periodically sorting the second parts in sequence The scanning order of the line blocks; And analyzing an overlap between each of the first line blocks and the corresponding second line blocks; and if at least two of the first line blocks overlap with corresponding at least two of the second line blocks, overlapping And scanning at least two of the first line blocks or overlapping at least two of the second line blocks are mutually exchanged, and the changed scan order of the first line blocks or the second line blocks has Periodic. A scanning method for a touch panel and a display panel, the touch panel having a plurality of first line blocks, the display panel having a plurality of second line blocks, each of the first line block interferences corresponding to each of the second a circuit block, the scanning method includes: periodically scanning the second line blocks at a second scanning frequency; analyzing scan states of the second line blocks; and determining the second line blocks according to the second line blocks The scan state selects one of the first line blocks of the first line blocks that are sequentially cyclically scanned as the first order. The method for scanning a touch panel and a display panel according to claim 15 , wherein the display panel has an idle time slot, and the second circuit blocks are not scanned in the idle time slot. The first line blocks are scanned in the idle time slot. The method for scanning a touch panel and a display panel according to claim 15 , wherein the display panel has an idle time slot, and the second circuit blocks are not scanned in the idle time slot, and all of the Some of the first line blocks are scanned in the idle time slot. The method for scanning a touch panel and a display panel according to claim 15, wherein the scanning states of the second line blocks are based on a vertical synchronization signal (VSYNC) and a horizontal synchronization signal (Horizontal). Synchronization, HSYNC), a BLANK signal or an idle/active signal for analysis.