Touch structure, touch display panel, touch device and touch detection method

Abstract

The embodiment of the present application provides a touch structure, a touch display panel, a touch device and a touch detection method. The touch structure comprises: at least two touch sensing groups; each touch sensing group comprises a first sensing block and a second sensing block located in the same row, a third sensing block and a fourth sensing block located in the same row; the first sensing block at least partially extends into the second sensing block; the fourth sensing block at least partially extends into the third sensing block; the first sensing block and the third sensing block belong to the same column, and the second sensing block and the fourth sensing block belong to the same column; the first sensing block and the third sensing block in each touch sensing group are electrically connected to the same first sending wire; and the second sensing block and the fourth sensing block in each touch sensing group are electrically connected to the same second sending wire. The embodiment of the present application improves the number of sensing areas that can be perceived by the signal acquisition unit within a limited time, thereby improving the accuracy of touch recognition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of touch control, in particular, the present application relates to a touch structure, a touch display panel, a touch device and a touch detection method. BACKGROUND

[0002] TDDI is touch and display driver integration. At present, the touch and display functions of the display panel are often controlled by two chips independently, and the biggest feature of TDDI is to integrate the touch circuit and the display circuit into a single chip.

[0003] The conventional TDDI display technology is to set a plurality of sensors in the display panel, and the TDDI chip divides all the sensors on the display panel into a plurality of groups by using a multiplexing unit (MUX), sends detection signals to the sensors in each group by the MUX, perceives each sensor by an analog front-end (AFE) to output feedback signals, and determines the position of touch occurrence according to the change of the feedback signals by a control unit (such as CPU). In the related art, the time left for the AFE to work is limited, and it is difficult to realize high-precision touch recognition. SUMMARY

[0004] The present application proposes a touch structure, a touch display panel, a touch device and a touch detection method to solve the technical problem that the time left for the AFE to work is limited and it is difficult to realize high-precision touch recognition in the prior art.

[0005] In a first aspect, the embodiments of the present application provide a touch structure, comprising: at least two touch sensing groups; each of the touch sensing groups comprises a first sensing block, a second sensing block, a third sensing block and a fourth sensing block; the first sensing block at least partially extends into the second sensing block; the fourth sensing block at least partially extends into the third sensing block; the first sensing block and the second sensing block in each of the touch sensing groups are located in the same row, and the third sensing block and the fourth sensing block are located in the same row; the first sensing block and the third sensing block belong to the same column, and the second sensing block and the fourth sensing block belong to the same column; the first sensing block and the third sensing block in each of the touch sensing groups are electrically connected to the same first transmission trace; and the second sensing block and the fourth sensing block in each of the touch sensing groups are electrically connected to the same second transmission trace.

[0006] Optionally, the at least two touch sensing groups are arranged in an array; the K MIn the aforementioned touch sensing group, the first sensing block is located in row 2K-1 and column 2M-1, the second sensing block is located in row 2K-1 and column 2M, the third sensing block is located in row 2K and column 2M-1, and the fourth sensing block is located in row 2K and column 2M, where K and M are both positive integers.

[0007] Optionally, the first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; the area occupied by the first main body corresponds to the first sensing area; the area occupied by the second sensing block and the first extension corresponds to the second sensing area; the area occupied by the third sensing block and the fourth extension corresponds to the third sensing area; and the area occupied by the fourth main body corresponds to the fourth sensing area. This configuration allows for the identification of four sensing areas, and the corresponding control method is simple.

[0008] Optionally, the first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; a portion of the first main body corresponds to a first sensing area; a portion of the second sensing block and a portion of the first extension correspond to a second sensing area; a portion of the third sensing block and a portion of the fourth extension correspond to a third sensing area; a portion of the fourth main body corresponds to a fourth sensing area; another portion of the first main body, another portion of the first extension, another portion of the second sensing block, another portion of the fourth main body, another portion of the fourth extension, and another portion of the third sensing block correspond to a fifth sensing area; the fifth sensing area is located between the first sensing area and the second sensing area, and between the third sensing area and the fourth sensing area. This configuration allows for accurate identification of the boundaries between the first, second, third, and fourth sensing blocks.

[0009] Optionally, the first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; a portion of the first main body corresponds to a first sensing area; a portion of the second sensing block and a portion of the first extension correspond to a second sensing area; a portion of the third sensing block and a portion of the fourth extension correspond to a third sensing area; a portion of the fourth main body corresponds to a fourth sensing area; another portion of the first main body, another portion of the third sensing block, and another portion of the fourth extension correspond to a fifth sensing area; the fifth sensing area is located between the first and third sensing areas; another portion of the fourth main body, another portion of the second sensing block, and another portion of the first extension correspond to a sixth sensing area; the sixth sensing area is located between the second and fourth sensing areas. This configuration allows for accurate identification of the boundaries between the first and third sensing blocks, as well as the boundaries between the second and fourth sensing blocks.

[0010] Optionally, each touch sensor block of the plurality of touch sensor groups is arranged in 2N rows and at least two columns; the Kth... m In the aforementioned touch sensor group, the first and second sensor blocks are located in row K, the third and fourth sensor blocks are located in row N+K, the first and third sensor blocks are located in column 2M-1, and the second and fourth sensor blocks are located in column 2M. This arrangement avoids the problem of inaccurate recognition position determination caused by touching the boundary between the "first and second sensor blocks" and the "third and fourth sensor blocks" when they are located in adjacent rows.

[0011] Optionally, the Kth m In the aforementioned touch sensing group, the first sensing block and the third sensing block are located in column a1, and the second sensing block and the fourth sensing block are located in column a2; the first sensing block and the second sensing block are located in row b1, and the third sensing block and the fourth sensing block are located in row b2; the Kth... m Each of the aforementioned touch sensing groups further includes a fifth sensing block located in row b3; the fifth sensing block is located in columns a1 and a2; the first sensing block extends at least partially into the interior of the fifth sensing block; the Kth... m Each of the aforementioned touch-sensing groups further includes a sixth sensing block located in row b4; the sixth sensing block is located in columns a1 and a2; the fourth sensing block extends at least partially into the interior of the sixth sensing block; the Kth... mThe touch sensing group further includes a seventh sensing block, an eighth sensing block, and a ninth sensing block; the eighth and ninth sensing blocks are located in row b5, and the seventh sensing block is located in row b6; the eighth and ninth sensing blocks are located in columns a1 and a2, respectively, and the seventh sensing block is located in columns a1 and a2; the seventh sensing block extends at least partially into the interior of the eighth sensing block and at least partially into the interior of the ninth sensing block; rows b1, b2, b3, b4, b5, and b6 are arranged sequentially; the Kth row... m The first, third, and eighth sensing blocks in each of the aforementioned touch sensing groups are all electrically connected to the same first transmission line; the second, fourth, and ninth sensing blocks in each of the aforementioned touch sensing groups are all electrically connected to the same second transmission line; and the fifth, sixth, and seventh sensing blocks in each of the aforementioned touch sensing groups are all electrically connected to the same third transmission line. This configuration allows each signal acquisition unit to sense at least nine sensing areas in a single operation, increasing the number of sensing areas that the signal acquisition unit can sense within a limited time, thereby improving the accuracy of touch recognition.

[0012] Secondly, embodiments of this application provide a touch display panel, including: the touch structure as described above.

[0013] Thirdly, embodiments of this application provide a touch device, including: at least two multiplexing units, at least two signal acquisition units, a control unit, and a touch display panel as described above; the multiplexing units and the signal acquisition units are all electrically connected to the control unit; the Kth... m In the aforementioned touch sensing group, the first sensing block and the third sensing block are electrically connected to the multiplexing unit in the Mth column via the same first transmitting line, and the second sensing block and the fourth sensing block are electrically connected to the multiplexing unit in the Mth column via the same second transmitting line; the first sensing block, the second sensing block, the third sensing block and the fourth sensing block are all electrically connected to the signal acquisition unit in the Kth row via receiving lines.

[0014] Fourthly, embodiments of this application provide a touch detection method applied to a touch device as described above, comprising: when the multiplexing unit selects a first transmission line to drive a first sensing block and a third sensing block in a touch sensing group, acquiring a first feedback signal output by a signal acquisition unit; when the multiplexing unit selects a second transmission line to drive a second sensing block and a fourth sensing block in a touch sensing group, acquiring a second feedback signal output by the signal acquisition unit; if only the first feedback signal is acquired, determining the touch position as a first sensing area; if both the first feedback signal and the second feedback signal are acquired, and the signal magnitude of the first feedback signal is less than the signal magnitude of the second feedback signal, determining the touch position as a second... Sensing area; if both the first feedback signal and the second feedback signal are obtained, and the signal amount of the first feedback signal is greater than the signal amount of the second feedback signal, the touch position is determined to be the third sensing area; if only the second feedback signal is obtained, the touch position is determined to be the fourth sensing area; the area occupied by at least a portion of the first main body of the first sensing block corresponds to the first sensing area; the area occupied by at least a portion of the second sensing block and at least a portion of the first extension of the first sensing block corresponds to the second sensing area; the area occupied by at least a portion of the third sensing block and at least a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area; the area occupied by at least a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area.

[0015] Optionally, the touch detection method in this application embodiment further includes: if both the first feedback signal and the second feedback signal are obtained, and the absolute value of the difference between the signal amount of the second feedback signal and the signal amount of the first feedback signal is less than a third preset signal amount, the touch position is determined to be a fifth sensing area; the area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area; the area occupied by a portion of the second sensing block and a portion of the first extension of the first sensing block corresponds to the second sensing area; the area occupied by a portion of the third sensing block and a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area; the area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area; the area occupied by another portion of the first main body and another portion of the first extension of the first sensing block, another portion of the second sensing block, another portion of the fourth main body and another portion of the fourth extension of the fourth sensing block, and another portion of the third sensing block corresponds to the fifth sensing area; the fifth sensing area is located between the first sensing area and the second sensing area, and between the third sensing area and the fourth sensing area. This configuration allows for accurate identification of the boundaries between the first sensing block, the second sensing block, the third sensing block, and the fourth sensing block.

[0016] Optionally, the touch detection method in this application embodiment further includes: if both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is greater than the signal strength of the second feedback signal, and the signal strength of the first feedback signal is greater than the first preset signal strength, and the signal strength of the second feedback signal is less than the second preset signal strength, then the touch position is determined to be a fifth sensing area; if both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is less than the signal strength of the second feedback signal, and the signal strength of the first feedback signal is less than the first preset signal strength, and the signal strength of the second feedback signal is greater than the second preset signal strength, then the touch position is determined to be a sixth sensing area; the area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area; a portion of the first main body of the first sensing block corresponds to the first sensing area. The area occupied by a portion of the first extension of the second sensing block and the first sensing block corresponds to the second sensing area; the area occupied by a portion of the fourth extension of the third sensing block and the fourth sensing block corresponds to the third sensing area; the area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area; the area occupied by another portion of the first main body of the first sensing block, another portion of the third sensing block and another portion of the fourth extension of the fourth sensing block corresponds to the fifth sensing area; the fifth sensing area is located between the first sensing area and the third sensing area; the area occupied by another portion of the fourth main body of the fourth sensing block, another portion of the second sensing block and another portion of the first extension of the first sensing block corresponds to the sixth sensing area; the sixth sensing area is located between the second sensing area and the fourth sensing area. This configuration allows for accurate identification of the boundary between the first and third sensing blocks, as well as the boundary between the second and fourth sensing blocks.

[0017] The beneficial technical effects of the technical solutions provided in this application include:

[0018] Since the first sensing block extends at least partially into the second sensing block, the fourth sensing block extends at least partially into the third sensing block, the first and third sensing blocks are electrically connected to the same first transmission line, and the second and fourth sensing blocks are electrically connected to the same second transmission line, the sensing area where the touch position is located can be determined by determining whether at least one of the first feedback signal (when the multiplexing unit selects the first transmission line to drive the first and third sensing blocks in the touch sensing group, the signal acquisition unit acquires and outputs the first feedback signal) and the second feedback signal (when the multiplexing unit selects the second transmission line to drive the second and fourth sensing blocks in the touch sensing group, the signal acquisition unit acquires and outputs the second feedback signal) is obtained, as well as the magnitude relationship between the first and second feedback signals. This allows each signal acquisition unit to sense at least four sensing areas in two operations, increasing the number of sensing areas that the signal acquisition unit can sense in a limited time, thereby improving the accuracy of touch recognition.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of a touch structure provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 A schematic diagram of one type of sensor area arrangement in a touch-screen structure;

[0023] Figure 3 for Figure 1 A schematic diagram of another sensing area arrangement method in a touch-screen structure;

[0024] Figure 4 for Figure 1 A schematic diagram of another sensing area arrangement method in a touch-screen structure;

[0025] Figure 5 This is a schematic diagram of another touch structure provided in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of another touch structure provided in the embodiments of this application;

[0027] Figure 7 for Figure 6 A schematic diagram of one type of sensor area arrangement in a touch-screen structure;

[0028] Figure 8 This is a schematic diagram of the structure of a touch device provided in an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of another touch device provided in an embodiment of this application;

[0030] Figure 10 A flowchart of the touch detection method provided in the embodiments of this application.

[0031] Figure label:

[0032] X Km -Kth m A touch sensor group; A Km -Kth m The first sensing block in a touch sensing group; B Km -Kth m The second sensing block in a touch-sensing group; C Km -Kth m The third sensor block in a touch sensor group; D Km - Kth m The fourth sensor block in a touch sensor group; E Km -Kth m The fifth sensor block in a touch sensor group; F Km -Kth m The sixth sensor block in a touch sensor group; G Km -Kth m The seventh sensor block in a touch sensor group; H Km -Kth m The eighth sensor block in a touch sensor group; I Km - Kth m The ninth sensor block in a touch sensor group;

[0033] S1 - First sensing zone; S2 - Second sensing zone; S3 - Third sensing zone; S4 - Fourth sensing zone; S5 - Fifth sensing zone; S6 - Sixth sensing zone; S7 - Seventh sensing zone; S8 - Eighth sensing zone; S9 - Ninth sensing zone;

[0034] Tx3 - Third transmit trace; Tx2 - Second transmit trace; Tx3 - Third transmit trace;

[0035] Z-signal acquisition unit; Z K - Signal acquisition unit in row K

[0036] Y-Multiplexing Unit; Y M - The multiplexing unit in column M. Detailed Implementation

[0037] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0038] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude implementations of other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by this art. It should be understood that when we say an element is “connected” or “coupled” to another element, the element may be directly connected or coupled to the other element, or it may mean that the element and the other element are connected through an intermediate element. Furthermore, “connected” or “coupled” as used herein may include wireless connection or wireless coupling. The term “and / or” as used herein means at least one of the items defined by the term; for example, “A and / or B” may be implemented as “A,” or as “B,” or as “A and B.”

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0040] The inventors discovered that for touch display panels, each frame needs to be divided into a display phase and a touch sensing phase during operation. Since the display phase requires sufficient time to charge all subpixels, the touch sensing phase is usually shorter. At the same time, the large number of parasitic capacitances and resistances on the panel also consume a significant amount of time, thus limiting the time available for the AFE (Active Front-End) to operate.

[0041] In related technologies, multiple sensors are arranged within a touch display panel. The TDDI chip uses a multiplexing unit (MUX) to divide all the sensors on the display panel into several groups. Each MUX is electrically connected to each group of sensors via multiple transmit lines (Tx lines), with each Tx line corresponding to a sensor. Each group of sensors typically consists of a row of sensors, and each signal acquisition unit (AFE, analog front-end) is typically electrically connected to a row of sensors. The MUX is used to drive each sensor in each group in a time-division multiplexing manner, and the signal acquisition unit (AFE) senses each sensor to output a feedback signal. The control unit (e.g., CPU) determines the location of the touch based on changes in the feedback signal. Therefore, the AFE needs to operate multiple times to display each frame.

[0042] Because the AFE in the relevant technology has a limited working time and needs to work multiple times to display each frame, and each AFE can sense one sensor each time it works, and finally obtain the coordinates of the touched sensor, the number of sensors that the AFE can sense in a limited time is not large. Therefore, the number of sensing blocks set in the touch display panel cannot be too large, and the touch recognition accuracy is not high.

[0043] The touch structure, touch display panel, touch device, and touch detection method provided in this application are intended to solve the above-mentioned technical problems of the prior art.

[0044] This application provides a touch structure, such as Figures 1 to 6 As shown, it includes at least two touch sensor groups.

[0045] Each touch sensor group includes a first sensor block, a second sensor block, a third sensor block, and a fourth sensor block. The first sensor block extends at least partially into the interior of the second sensor block, and the fourth sensor block extends at least partially into the interior of the third sensor block.

[0046] In each touch sensor group, the first and second sensor blocks are located in the same row, the third and fourth sensor blocks are located in the same row, the first and third sensor blocks belong to the same column, and the second and fourth sensor blocks belong to the same column.

[0047] The first and third sensing blocks in each touch sensing group are electrically connected to the same first transmit line Tx1, and the second and fourth sensing blocks in each touch sensing group are electrically connected to the same second transmit line Tx2.

[0048] The touch detection method for the above-mentioned touch structure can be as follows:

[0049] When the multiplexing unit selects the first transmit line Tx1 to drive the first and third sensing blocks in the touch sensing group, the first feedback signal output by the signal acquisition unit is acquired. When the multiplexing unit selects the second transmit line Tx2 to drive the second and fourth sensing blocks in the touch sensing group, the second feedback signal output by the signal acquisition unit is acquired.

[0050] If only the first feedback signal is obtained, the touch position is determined to be the first sensing area S1.

[0051] If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is less than that of the second feedback signal, the touch position is determined to be the second sensing area S2.

[0052] If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is greater than that of the second feedback signal, the touch position is determined to be the third sensing area S3.

[0053] If only the second feedback signal is obtained, the touch position is determined to be the fourth sensing area S4.

[0054] Wherein, the area occupied by at least a portion of the first main body of the first sensing block corresponds to the first sensing area S1; the area occupied by at least a portion of the second sensing block and at least a portion of the first extension of the first sensing block corresponds to the second sensing area S2; the area occupied by at least a portion of the third sensing block and at least a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area S3; and the area occupied by at least a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area S4.

[0055] In other words, the first transmitting trace Tx1 and the second transmitting trace Tx2 form a combination, using the collected feedback signals to identify four sensors. By determining whether at least one of the first and second feedback signals is acquired, and the magnitude relationship between the first and second feedback signals, the sensing area where the touch position is located is determined. This allows each signal acquisition unit to sense at least four sensing areas in just two operations, increasing the number of sensing areas that the signal acquisition unit can sense within a limited time, thereby improving the accuracy of touch recognition.

[0056] The scheme for connecting two sensor blocks with each transmitting line is as follows:

[0057] like Figure 1 As shown, in some embodiments, at least two touch sensor groups are arranged in an array. The Kth... M X touch sensor groups Km In the middle, the first sensing block A Km Located in row 2K-1, column 2M-1, the second sensing block B Km Located in row 2K-1, column 2M, third sensing block CKm Located in row 2K, column 2M-1, the fourth sensing block D Km Located in row 2K and column 2M, where K and M are both positive integers.

[0058] In other words, the first, second, third, and fourth sensing blocks in each touch sensing group are arranged adjacent to each other in a grid pattern. In each touch sensing group, the row containing the first and second sensing blocks is adjacent to the row containing the third and fourth sensing blocks.

[0059] Specifically, such as Figure 2 As shown, the first sensing block may include a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block. The fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block.

[0060] The area occupied by the first main body corresponds to the first sensing area S1, the area occupied by the second sensing block and the first extension corresponds to the second sensing area S2, the area occupied by the third sensing block and the fourth extension corresponds to the third sensing area S3, and the area occupied by the fourth main body corresponds to the fourth sensing area S4.

[0061] In this embodiment, the first extension of each first sensing block can be a long, thin strip, and there are multiple such extensions. This ensures that when the touch position is the second sensing area S2, not only the second sensing block but also the first extension can be touched. Furthermore, the touch area of ​​the first extension is smaller than the touch area of ​​the second sensing block, thereby ensuring that the signal strength of the first feedback signal is less than that of the second feedback signal. The structure of the fourth sensing block is similar to that of the first sensing block, and will not be described in detail here.

[0062] In practical applications, the aforementioned touch detection method can be used, or a first signal threshold and a second signal threshold can be introduced to further improve the recognition accuracy of each sensing area. The specific touch detection method is as follows:

[0063] The semaphore of the first feedback signal is Vtx1, the semaphore of the second feedback signal is Vtx2, the first signal threshold is Vthb, the second signal threshold is Vths, where Vthb≥Vths.

[0064] In practical applications, Vthb is related to the area and shape (spacing) of the second and third sensing blocks. Vthb can be determined based on the second signal obtained from touching the second sensing block alone, and the third signal obtained from touching the third sensing block alone. Vthb can be less than or equal to the smaller of the second and third signal values.

[0065] Vths is related to the area and shape of the first extension of the first sensing block (e.g., the spacing between adjacent first extensions) and the area and shape of the fourth extension of the fourth sensing block (e.g., the spacing between adjacent fourth extensions). Vths can be determined based on a first signal quantity obtained by individually touching the first extension of the first sensing block and a fourth signal quantity obtained by individually touching the fourth extension of the fourth sensing block. Vths can be less than or equal to the smaller of the first signal quantity and the fourth signal quantity.

[0066] If only the signal quantity Vtx1 of the first feedback signal is obtained, and the signal quantity Vtx1 of the first feedback signal is large (for example, Vtx1≥Vthb and Vtx2≈0), the touch position is determined to be the first sensing area S1.

[0067] If both the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx2 of the second feedback signal is larger, while the signal quantity Vtx1 of the first feedback signal is smaller (Vtx2≥Vthb, and 0<Vtx1≤Vths), the touch position is determined to be the second sensing area S2.

[0068] If both the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx1 of the first feedback signal is larger and the signal quantity Vtx2 of the second feedback signal is smaller (Vtx1≥Vthb, and 0<Vtx2≤Vths), the touch position is determined to be the third sensing area S3.

[0069] If only the second feedback signal is obtained, and the signal quantity Vtx2 of the second feedback signal is large (Vtx2≥Vthb, and Vtx1≈0), the touch position is determined to be the fourth sensing area S4.

[0070] With this setup, each touch sensor group corresponds to four sensing areas, and each signal acquisition unit can sense all four sensing areas by working twice, and the corresponding control method is simple.

[0071] The above touch detection method is applicable to touch recognition of a single finger.

[0072] When multiple fingers touch simultaneously, the first and second feedback signals are processed inside the IC to determine the touch position. The upper limit value Vthbmax can be preset to recognize multi-point touch (i.e., multiple fingers touch simultaneously).

[0073] The specific touch detection method for multi-touch is as follows:

[0074] If both the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx1 of the first feedback signal is large, while the signal quantity Vtx2 of the second feedback signal is small (Vtx1≥Vthbmax, and 0<Vtx2≤Vths), the touch position is determined to be simultaneous touch of the first sensing area S1 and the third sensing area S3.

[0075] If both the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx2 of the second feedback signal is large, while the signal quantity Vtx1 of the first feedback signal is small (Vtx2≥Vthbmax, and 0<Vtx1≤Vths), the touch position is determined to be (multiple fingers) simultaneously touching the second sensing area S2 and the fourth sensing area S4.

[0076] For example, simultaneous touch of the first sensing area S1 and the third sensing area S3 can be achieved by one finger touching the first sensing area S1 and another finger touching the third sensing area S3. Simultaneous touch of the second sensing area S2 and the fourth sensing area S4 can be achieved by one finger touching the second sensing area S2 and another finger touching the fourth sensing area S4.

[0077] Vthbmax can be twice Vthb or other values, as long as it is greater than the signal obtained by touching the first sensing area S1 alone or touching the fourth sensing area S4 alone.

[0078] In other feasible embodiments, such as Figure 3 As shown, the first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block. The fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block. The structure of each sensing block in each touch sensing group is similar to... Figure 2 Similar to the case in China, it will not be repeated here.

[0079] See Figure 3 The main difference is that each touch sensor group corresponds to five sensing areas. Specifically, the area occupied by a portion of the first main body corresponds to the first sensing area S1, the area occupied by a portion of the second sensing block and a portion of the first extension corresponds to the second sensing area S2, the area occupied by a portion of the third sensing block and a portion of the fourth extension corresponds to the third sensing area S3, and the area occupied by a portion of the fourth main body corresponds to the fourth sensing area S4.

[0080] The area occupied by the other part of the first main body, the other part of the first extension, the other part of the second sensing block, the other part of the fourth main body, the other part of the fourth extension, and the other part of the third sensing block corresponds to the fifth sensing area S5. The fifth sensing area S5 is located between the first sensing area S1 and the second sensing area S2, and between the third sensing area S3 and the fourth sensing area S4.

[0081] In the corresponding touch detection method, the touch recognition of the first sensing area S1, the second sensing area S2, the third sensing area S3 and the fourth sensing area S4 is similar to that described above.

[0082] The touch recognition of the fifth sensing area S5 is as follows: if both the first feedback signal and the second feedback signal are obtained, and the absolute value of the difference between the signal amount Vtx2 of the second feedback signal and the signal amount Vtx1 of the first feedback signal is less than the third preset signal amount Vs, the touch position is determined to be the fifth sensing area S5.

[0083] In other words, when |Vtx1-Vtx2|≤Vs, the touch position is determined to be the fifth sensing area S5, thereby further improving the touch recognition accuracy of the fifth sensing area S5.

[0084] Here, Vs is a very small reference value. If |Vtx1-Vtx2|≤Vs, then the signal quantity Vtx2 of the second feedback signal is considered to be very close to the signal quantity Vtx1 of the first feedback signal. In practical applications, Vs can be set according to the requirements and effects of the actual touch application. Vs is a flexibly set value or an empirical value obtained based on actual effects. Optionally, Vs can be set to be adjustable, that is, Vs can be adjusted using digital signals in the IC.

[0085] Combination Figure 3 The sensing blocks in the fifth sensing area S5 are arranged in a centrally symmetrical manner. Therefore, when the touch position is the fifth sensing area S5, the signal quantity of the second feedback signal is similar to that of the first feedback signal, that is, |Vtx1-Vtx2|≤Vs, where Vs is a very small reference value.

[0086] This setup allows for accurate identification of the boundaries between the first, second, third, and fourth sensing blocks.

[0087] In other feasible embodiments, such as Figure 4 As shown, the first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block. The fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block. The structure of each sensing block in each touch sensing group is similar to... Figure 2 Similar to the case in China, it will not be repeated here.

[0088] See Figure 4 The main difference is that each touch sensor group corresponds to six sensing areas. Specifically, the area occupied by a portion of the first main body corresponds to the first sensing area S1, the area occupied by a portion of the second sensing block and a portion of the first extension corresponds to the second sensing area S2, the area occupied by a portion of the third sensing block and a portion of the fourth extension corresponds to the third sensing area S3, and the area occupied by a portion of the fourth main body corresponds to the fourth sensing area S4.

[0089] The area occupied by the other part of the first main body, the other part of the third sensing block, and the other part of the fourth extension corresponds to the fifth sensing area S5, which is located between the first sensing area S1 and the third sensing area S3. The area occupied by the other part of the fourth main body, the other part of the second sensing block, and the other part of the first extension corresponds to the sixth sensing area S6, which is located between the second sensing area S2 and the fourth sensing area S4.

[0090] In the corresponding touch detection method, the touch recognition of the first sensing area S1, the second sensing area S2, the third sensing area S3 and the fourth sensing area S4 is similar to that described above.

[0091] The touch recognition of the fifth sensing area S5 and the sixth sensing area S6 is as follows:

[0092] If both the first feedback signal and the second feedback signal are obtained, and the signal amount of the first feedback signal is greater than the signal amount of the second feedback signal, and the signal amount of the first feedback signal is greater than the first preset signal amount, and the signal amount of the second feedback signal is less than the second preset signal amount, then the touch position is determined to be the fifth sensing area S5.

[0093] If both the first feedback signal and the second feedback signal are obtained, and the signal amount of the first feedback signal is less than the signal amount of the second feedback signal, and the signal amount of the first feedback signal is less than the first preset signal amount, and the signal amount of the second feedback signal is greater than the second preset signal amount, then the touch position is determined to be the sixth sensing area S6.

[0094] In some embodiments, the first preset semaphore is Vthb', which is greater than the first signal threshold Vthb, and the second preset semaphore is Vths', which is less than the second signal threshold Vths.

[0095] In other words, if Vtx1≥Vthb' and 0<Vtx2≤Vths', the touch position is determined to be the boundary between the first and third sensing blocks (i.e., the fifth sensing area S5); if Vtx2≥Vthb' and 0<Vtx1≤Vths', the touch position is determined to be the boundary between the second and fourth sensing blocks (i.e., the sixth sensing area S6).

[0096] Combination Figure 4 The fifth sensing area S5 is composed of the area occupied by the first main body of the first sensing block, the area occupied by the third sensing block and the area occupied by the fourth extension of the fourth sensing block. The third sensing area S3 is entirely composed of the area occupied by the third sensing block and the area occupied by the fourth extension of the fourth sensing block.

[0097] Compared to the third sensing area S3, the area of ​​the sensing block used to form the first feedback signal in the fifth sensing area S5 is larger. Therefore, the signal strength of the first feedback signal in the fifth sensing area S5 is greater than that in the third sensing area S3. Similarly, the signal strength of the first feedback signal in the sixth sensing area S6 is greater than that in the third sensing area S3. Therefore, it is necessary to set Vthb' > Vthb. For similar reasons, Vths' <Vths。

[0098] In fact, the first preset signal quantity Vthb' and the second preset signal quantity Vths' are both related to the area and shape of each sensing block in the fifth sensing area S5 and the sixth sensing area S6.

[0099] This configuration allows for accurate identification of the boundary between the first and third sensing blocks, as well as the boundary between the second and fourth sensing blocks.

[0100] Of course, the touch sensor blocks in multiple touch sensor groups can also be arranged in other ways. For example, such as Figure 5 As shown, the touch sensor blocks of multiple touch sensor groups are arranged in 2N rows and at least two columns; the Kth... m X touch sensor groups Km In the middle, the first sensing block A Km Second sensing block B Km Located in row K, third sensing block C Km and the fourth sensing block D Km Located in row N+K, the first sensing block A Km With the third sensing block C Km Located in column 2M-1, second sensor block B Km With the fourth sensing block D Km Located in column 2M. Figure 5 The touch detection method corresponding to the touch structure shown is... Figure 2 The touch detection method corresponding to the touch structure shown is similar, and will not be described in detail here.

[0101] This arrangement ensures that the row containing the first and second sensing blocks in each touch sensing group is adjacent to the row containing the first and second sensing blocks in another touch sensing group. This improves the problem of inaccurate recognition position determination caused by touching the boundary between the rows containing the first and second sensing blocks and the rows containing the third and fourth sensing blocks.

[0102] for Figure 5 In the arrangement of the sensors, only one row of the first and second sensor blocks is adjacent to the row of the third and fourth sensor blocks. In this case, the touch result when the signal amount of the second feedback signal is similar to that of the first feedback signal can be determined as an invalid result.

[0103] In some feasible embodiments, each transmission line can also connect three or more sensing blocks, thereby further improving touch recognition accuracy.

[0104] The following example uses three sensor blocks connected to each transmitting line:

[0105] like Figure 6 As shown, the Kth m X touch sensor groups Km In the middle, the first sensing block A Km and the third sensing block C Km Located in column a1, second sensing block B Km and the fourth sensing block D Km Located in column a2; first sensing block A Km Second sensing block B Km Located in row b1, third sensing block C Km and the fourth sensing block D Km Located in line b2.

[0106] Kth m X touch sensor groups Km It also includes the fifth sensor block E located in row b3. Km Fifth sensing block E Km Located in columns a1 and a2; First sensing block A Km At least partially extending to the fifth sensing block E Km internal.

[0107] Kth m X touch sensor groups Km It also includes the sixth sensor block F located in row b4. Km Sixth sensing block F Km Located in columns a1 and a2; fourth sensing block D Km At least partially extending to the sixth sensing block F Km internal.

[0108] Kth m X touch sensor groups Km It also includes the seventh sensing block G Km Eighth sensing block H Km Ninth sensing block I Km ; Eighth sensing block H Km and the ninth sensing block I Km Located in row b5, the seventh sensor block G Km Located in row b6; eighth sensor block H Km and the ninth sensing block I Km Located in columns a1 and a2 respectively, the seventh sensing block G Km Located in columns a1 and a2; seventh sensor block GKm At least partially extending to the eighth sensing block H Km Internally, and at least partially extending to the ninth sensing block I Km internal.

[0109] Among them, rows b1, b3, b2, b4, b5, and b6 are arranged in sequence.

[0110] Kth m X touch sensor groups Km The first sensing block A in Km Third sensing block C Km and the eighth sensing block H Km All are electrically connected to the same first transmit line Tx1; the second sensing block B in each touch sensing group Km Fourth sensing block D Km and the ninth sensing block I Km All are electrically connected to the same second transmit line Tx2; the fifth sensor block E in each touch sensor group Km The sixth sensing block F Km and the seventh sensing block G Km All are electrically connected to the same third transmit line Tx3.

[0111] This configuration allows each signal acquisition unit to sense at least nine sensing areas in a single operation, increasing the number of sensing areas that the signal acquisition unit can sense within a limited time, thereby improving the accuracy of touch recognition.

[0112] See Figure 7 , Figure 6 The Kth shown m The specific settings for the sensing areas of each touch sensor group are as follows:

[0113] The area occupied by the first main body of the first sensing block corresponds to the first sensing area S1, the area occupied by the second sensing block and the first extension of the first sensing block corresponds to the second sensing area S2, the area occupied by the third sensing block and the fourth extension of the fourth sensing block corresponds to the third sensing area S3, and the area occupied by the fourth main body of the fourth sensing block corresponds to the fourth sensing area S4.

[0114] The area occupied by the fifth sensing block and the second extension of the first sensing block corresponds to the fifth sensing area S5, and the area occupied by the sixth sensing block and the fifth extension of the fourth sensing block corresponds to the sixth sensing area S6.

[0115] The area occupied by the seventh main body of the seventh sensing block corresponds to the seventh sensing area S7, the area occupied by the eighth sensing block and the seventh extension of the seventh sensing block corresponds to the eighth sensing area S8, and the area occupied by the ninth sensing block and the eighth extension of the seventh sensing block corresponds to the ninth sensing area S9.

[0116] Figure 6 The specific touch detection method corresponding to the touch structure shown is as follows:

[0117] When the first transmit line Tx1 is selected by the multiplexing unit to drive the first, third, and eighth sensing blocks in the touch sensing group, the first feedback signal output by the signal acquisition unit is acquired; when the second transmit line Tx2 is selected by the multiplexing unit to drive the second, fourth, and ninth sensing blocks in the touch sensing group, the second feedback signal output by the signal acquisition unit is acquired; when the third transmit line Tx3 is selected by the multiplexing unit to drive the fifth, sixth, and seventh sensing blocks in the touch sensing group, the third feedback signal output by the signal acquisition unit is acquired.

[0118] If only the first feedback signal is obtained, the touch position is determined to be the first sensing area S1.

[0119] If only the first feedback signal and the second feedback signal are obtained, and the signal amount of the first feedback signal is less than the signal amount of the second feedback signal, the touch position is determined to be the second sensing area S2.

[0120] If only the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is greater than that of the second feedback signal, the touch position is determined to be the third sensing area S3.

[0121] If only the second feedback signal is obtained, the touch position is determined to be the fourth sensing area S4.

[0122] If only the first feedback signal and the third feedback signal are obtained, and the signal amount of the first feedback signal is less than the signal amount of the third feedback signal, the touch position is determined to be the fifth sensing area S5.

[0123] If only the second feedback signal and the third feedback signal are obtained, and the signal amount of the second feedback signal is less than the signal amount of the third feedback signal, the touch position is determined to be the sixth sensing area S6.

[0124] If only the third feedback signal is obtained, the touch position is determined to be the seventh sensing area S7.

[0125] If only the first feedback signal and the third feedback signal are obtained, and the signal amount of the third feedback signal is less than the signal amount of the first feedback signal, the touch position is determined to be the eighth sensing area S8.

[0126] If only the second feedback signal and the third feedback signal are obtained, and the signal amount of the third feedback signal is less than the signal amount of the second feedback signal, the touch position is determined to be the ninth sensing area S9.

[0127] Optionally, Figure 6 The touch detection method corresponding to the touch structure shown can also be as follows:

[0128] The semaphore of the first feedback signal is Vtx1, the semaphore of the second feedback signal is Vtx2, the semaphore of the third feedback signal is Vtx3, the first signal threshold is Vthb, and the second signal threshold is Vths.

[0129] If only the signal quantity Vtx1 of the first feedback signal is obtained, and the signal quantity Vtx1 of the first feedback signal is large (for example, Vtx1≥Vthb, and Vtx2≈0, Vtx3≈0), the touch position is determined to be the first sensing area S1.

[0130] If only the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx2 of the second feedback signal is larger than the signal quantity Vtx1 of the first feedback signal (Vtx2≥Vthb, and 0<Vtx1≤Vths, Vtx3≈0), the touch position is determined to be the second sensing area S2.

[0131] If only the first feedback signal and the second feedback signal are obtained, and the signal quantity Vtx1 of the first feedback signal is large, while the signal quantity Vtx2 of the second feedback signal is small (Vtx1≥Vthb, and 0<Vtx2≤Vths, Vtx3≈0), the touch position is determined to be the third sensing area S3.

[0132] If only the second feedback signal is obtained, and the signal quantity Vtx2 of the second feedback signal is large (Vtx2≥Vthb, and Vtx1≈0, Vtx3≈0), the touch position is determined to be the fourth sensing area S4.

[0133] If only the first feedback signal and the third feedback signal are obtained, and the signal quantity Vtx3 of the third feedback signal is larger, while the signal quantity Vtx1 of the first feedback signal is smaller (Vtx3≥Vthb, and 0<Vtx1≤Vths, Vtx2≈0), the touch position is determined to be the fifth sensing area S5.

[0134] If only the second feedback signal and the third feedback signal are obtained, and the signal quantity Vtx3 of the third feedback signal is large, while the signal quantity Vtx2 of the second feedback signal is small (Vtx3≥Vthb, and Vtx1≈0, 0<Vtx2≤Vths), the touch position is determined to be the sixth sensing area S6.

[0135] If only the third feedback signal is obtained, and the signal quantity Vtx3 of the third feedback signal is large (for example, Vtx3≥Vthb, and Vtx1≈0, Vtx2≈0), the touch position is determined to be the seventh sensing area S7.

[0136] If only the first feedback signal and the third feedback signal are obtained, and the signal quantity Vtx1 of the first feedback signal is relatively large, while the signal quantity Vtx3 of the third feedback signal is relatively small (Vtx1≥Vthb, and Vtx2≈0, 0<Vtx3≤Vths), then the touch position is determined to be the eighth sensing area S8.

[0137] If only the second feedback signal and the third feedback signal are obtained, and the signal amount of the second feedback signal Vtx2 is larger than that of the third feedback signal Vtx3 (Vtx2≥Vthb, and Vtx1≈0, 0<Vtx3≤Vths), then the touch position is determined to be the ninth sensing area S9.

[0138] The beneficial technical effects of the technical solutions provided in this application include:

[0139] Two or more transmission lines form a combination, and the collected feedback signals are combined to identify four or more sensors. By determining the number of acquired feedback signals and the magnitude relationship between them, the sensing area where the touch position is located is determined. This allows each signal acquisition unit to sense at least four sensing areas in just two operations, increasing the number of sensing areas that the signal acquisition unit can sense within a limited time, thereby improving the accuracy of touch recognition.

[0140] Based on the inventive concept, embodiments of this application provide a touch display panel, including: the touch structure as described above.

[0141] This embodiment is an embodiment of the touch display panel corresponding to the aforementioned touch structure embodiment. The technical details in the aforementioned touch structure embodiment are all applicable to this embodiment. This embodiment can also achieve similar technical effects as the aforementioned touch structure embodiment, which will not be repeated here.

[0142] Based on an inventive concept, embodiments of this application provide a touch device, such as... Figure 8 , Figure 9 As shown, it includes: at least two multiplexing units Y, at least two signal acquisition units Z, a control unit (not shown) and a touch display panel as described above. The multiplexing units Y and the signal acquisition units Z are both electrically connected to the control unit.

[0143] Kth m X touch sensor groups Km In the middle, the first sensing block A Km With the third sensing block C Km Electrically connected to the multiplexing unit Y in column M via the same first transmit line M Second sensing block B Km With the fourth sensing block D Km Electrically connected to the multiplexing unit Y in column M via the same second transmit lineM First sensing block A Km Second sensing block B Km Third sensing block C Km and the fourth sensing block D Km All are electrically connected to the signal acquisition unit Z in row K via receiving traces. K .

[0144] When the touch structure is Figure 1 In the structure shown, the touch device is Figure 8 The structure shown. When the touch structure is Figure 5 In the structure shown, the touch device is Figure 9 The structure shown.

[0145] Optionally, for a touch structure where each transmit line connects three sensor blocks, the Kth... M In each touch sensing group, the first, third, and eighth sensing blocks in each touch sensing group are electrically connected to the same first transmit line and electrically connected to the multiplexing unit in column M. The second, fourth, and ninth sensing blocks in each touch sensing group are electrically connected to the same second transmit line and electrically connected to the multiplexing unit in column M. The fifth, sixth, and seventh sensing blocks in each touch sensing group are electrically connected to the same third transmit line and electrically connected to the multiplexing unit in column M. The first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth sensing blocks are all electrically connected to the signal acquisition unit in row K via a receive line.

[0146] This embodiment is an embodiment of the touch device corresponding to the aforementioned display panel embodiment. The technical details of the aforementioned display panel embodiment are all applicable to this embodiment. This embodiment can also achieve similar technical effects as the aforementioned touch display panel embodiment, which will not be repeated here.

[0147] Fourthly, embodiments of this application provide a touch detection method, such as... Figure 10 As shown, when applied to a touch device as described above, the following steps are included:

[0148] S11: When the first transmit line is selected by the multiplexing unit to drive the first and third sensing blocks in the touch sensing group, the first feedback signal output by the signal acquisition unit is acquired; when the second transmit line is selected by the multiplexing unit to drive the second and fourth sensing blocks in the touch sensing group, the second feedback signal output by the signal acquisition unit is acquired.

[0149] S12: If only the first feedback signal is obtained, the touch position is determined to be the first sensing area; if both the first and second feedback signals are obtained, and the signal strength of the first feedback signal is less than that of the second feedback signal, the touch position is determined to be the second sensing area; if both the first and second feedback signals are obtained, and the signal strength of the first feedback signal is greater than that of the second feedback signal, the touch position is determined to be the third sensing area; if only the second feedback signal is obtained, the touch position is determined to be the fourth sensing area.

[0150] In step S12, the area occupied by at least a portion of the first main body of the first sensing block corresponds to the first sensing area, the area occupied by at least a portion of the second sensing block and at least a portion of the first extension of the first sensing block corresponds to the second sensing area, the area occupied by at least a portion of the third sensing block and at least a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area, and the area occupied by at least a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area.

[0151] In this embodiment, see Figure 2 Each touch sensor group may include four sensing areas. Specifically, the area occupied by the first main body corresponds to the first sensing area S1, the area occupied by the second sensing block and the first extension corresponds to the second sensing area S2, the area occupied by the third sensing block and the fourth extension corresponds to the third sensing area S3, and the area occupied by the fourth main body corresponds to the fourth sensing area S4.

[0152] In some embodiments, see Figure 3 Each touch sensor group may include five sensing areas. Specifically, the area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area S1; the area occupied by a portion of the second sensing block and a portion of the first extension of the first sensing block corresponds to the second sensing area S2; the area occupied by a portion of the third sensing block and a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area S3; the area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area S4; the area occupied by another portion of the first main body and another portion of the first extension of the first sensing block, another portion of the second sensing block, another portion of the fourth main body and another portion of the fourth extension of the fourth sensing block, and another portion of the third sensing block corresponds to the fifth sensing area S5; the fifth sensing area S5 is located between the first sensing area S1 and the second sensing area S2, and between the third sensing area S3 and the fourth sensing area S4.

[0153] Correspondingly, the touch detection method may further include: if both the first feedback signal and the second feedback signal are obtained, and the absolute value of the difference between the signal amount of the second feedback signal and the signal amount of the first feedback signal is less than the third preset signal amount, then the touch position is determined to be the fifth sensing area S5.

[0154] This setup allows for accurate identification of the boundaries between the first, second, third, and fourth sensing blocks.

[0155] In other feasible embodiments, see Figure 4 Each touch sensor group may include six sensing areas. Specifically, the area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area S1; the area occupied by a portion of the second sensing block and a portion of the first extension of the first sensing block corresponds to the second sensing area S2; the area occupied by a portion of the third sensing block and a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area S3; the area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area S4; the area occupied by another portion of the first main body of the first sensing block, another portion of the third sensing block, and another portion of the fourth extension of the fourth sensing block corresponds to the fifth sensing area S5; the fifth sensing area S5 is located between the first sensing area S1 and the third sensing area S3; the area occupied by another portion of the fourth main body of the fourth sensing block, another portion of the second sensing block, and another portion of the first extension of the first sensing block corresponds to the sixth sensing area S6; the sixth sensing area S6 is located between the second sensing area S2 and the fourth sensing area S4.

[0156] Correspondingly, the touch detection method may further include: if both a first feedback signal and a second feedback signal are acquired, and the signal amount of the first feedback signal is greater than the signal amount of the second feedback signal, and the signal amount of the first feedback signal is greater than a first preset signal amount, and the signal amount of the second feedback signal is less than a second preset signal amount, then the touch position is determined to be the fifth sensing area S5; if both a first feedback signal and a second feedback signal are acquired, and the signal amount of the first feedback signal is less than the signal amount of the second feedback signal, and the signal amount of the first feedback signal is less than a first preset signal amount, and the signal amount of the second feedback signal is greater than a second preset signal amount, then the touch position is determined to be the sixth sensing area S6.

[0157] This configuration allows for accurate identification of the boundary between the first and third sensing blocks, as well as the boundary between the second and fourth sensing blocks.

[0158] This embodiment is an example of the touch detection method corresponding to the aforementioned touch structure embodiment. The technical details in the aforementioned touch structure embodiment are all applicable to this embodiment. This embodiment can also achieve similar technical effects as the aforementioned touch structure embodiment, which will not be repeated here.

[0159] This embodiment is an example of the touch detection method corresponding to the aforementioned touch structure embodiment. The technical details in the aforementioned touch structure embodiment are all applicable to this embodiment. This embodiment can also achieve similar technical effects as the aforementioned touch structure embodiment, which will not be repeated here.

[0160] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in the prior art that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0161] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0162] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0163] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown sequentially according to the arrows, the order in which these steps are implemented is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of this application, the steps in each process can be executed in other orders as required. Moreover, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages based on the actual implementation scenario. Some or all of these sub-steps or stages may be executed at the same time or at different times. In scenarios where the execution times are different, the execution order of these sub-steps or stages can be flexibly configured according to requirements, and this application does not limit this.

[0164] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A touch structure, characterized in that, include: At least two touch sensor groups; Each of the touch sensing groups includes a first sensing block, a second sensing block, a third sensing block, and a fourth sensing block; the first sensing block extends at least partially into the interior of the second sensing block; the fourth sensing block extends at least partially into the interior of the third sensing block; In each of the touch sensing groups, the first sensing block and the second sensing block are located in the same row, and the third sensing block and the fourth sensing block are located in the same row; the first sensing block and the third sensing block belong to the same column, and the second sensing block and the fourth sensing block belong to the same column; The area occupied by at least a portion of the first main body of the first sensing block corresponds to the first sensing area; At least a portion of the second sensing block and at least a portion of the first extension of the first sensing block occupy the area corresponding to the second sensing area; At least a portion of the third sensing block and at least a portion of the fourth extension of the fourth sensing block occupy areas corresponding to the third sensing area; at least a portion of the fourth main body of the fourth sensing block occupy areas corresponding to the fourth sensing area. The first and third sensing blocks in each of the touch sensing groups are electrically connected to the same first transmission line; the second and fourth sensing blocks in each of the touch sensing groups are electrically connected to the same second transmission line.

2. The touch structure according to claim 1, characterized in that, The at least two touch sensor groups are arranged in an array; Kth M In the aforementioned touch sensing group, the first sensing block is located in row 2K-1 and column 2M-1, the second sensing block is located in row 2K-1 and column 2M, the third sensing block is located in row 2K and column 2M-1, and the fourth sensing block is located in row 2K and column 2M, where K and M are both positive integers.

3. The touch structure according to claim 2, characterized in that, The first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; The area occupied by the first main body corresponds to the first sensing area; the area occupied by the second sensing block and the first extension corresponds to the second sensing area; the area occupied by the third sensing block and the fourth extension corresponds to the third sensing area. The area occupied by the fourth main body corresponds to the fourth sensing area.

4. The touch structure according to claim 2, characterized in that, The first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; The area occupied by the first main body part corresponds to the first sensing area; The area occupied by a portion of the second sensing block and a portion of the first extension corresponds to the second sensing area; The area occupied by part of the third sensing block and part of the fourth extension corresponds to the third sensing area; The area occupied by the fourth main body part corresponds to the fourth sensing area; The area occupied by another part of the first main body, another part of the first extension, another part of the second sensing block, another part of the fourth main body, another part of the fourth extension, and another part of the third sensing block corresponds to the fifth sensing area; the fifth sensing area is located between the first sensing area and the second sensing area, and between the third sensing area and the fourth sensing area.

5. The touch structure according to claim 2, characterized in that, The first sensing block includes a first main body and a first extension connected to each other, the first extension being at least partially surrounded by the second sensing block; the fourth sensing block includes a fourth main body and a fourth extension connected to each other, the fourth extension being at least partially surrounded by the third sensing block; The area occupied by the first main body part corresponds to the first sensing area; The area occupied by a portion of the second sensing block and a portion of the first extension corresponds to the second sensing area; The area occupied by part of the third sensing block and part of the fourth extension corresponds to the third sensing area; The area occupied by the fourth main body part corresponds to the fourth sensing area; The area occupied by the other part of the first main body, the other part of the third sensing block, and the other part of the fourth extension corresponds to the fifth sensing area; The fifth sensing area is located between the first sensing area and the third sensing area; The area occupied by the other part of the fourth main body, the other part of the second sensing block, and the other part of the first extension corresponds to the sixth sensing area; The sixth sensing area is located between the second sensing area and the fourth sensing area.

6. The touch structure according to claim 1, characterized in that, Each touch sensor block of the plurality of said touch sensor groups is arranged in 2N rows and at least two columns; Kth m In the aforementioned touch sensing group, the first sensing block and the second sensing block are located in row K, the third sensing block and the fourth sensing block are located in row N+K, the first sensing block and the third sensing block are located in column 2M-1, and the second sensing block and the fourth sensing block are located in column 2M.

7. The touch structure according to claim 1, characterized in that, Kth m In the aforementioned touch sensing group, the first sensing block and the third sensing block are located in column a1, and the second sensing block and the fourth sensing block are located in column a2; the first sensing block and the second sensing block are located in row b1, and the third sensing block and the fourth sensing block are located in row b2. Kth m Each of the touch sensing groups further includes a fifth sensing block located in row b3; the fifth sensing block is located in columns a1 and a2; the first sensing block extends at least partially into the interior of the fifth sensing block; Kth m The touch sensing group further includes a sixth sensing block located in row b4; the sixth sensing block is located in columns a1 and a2; the fourth sensing block extends at least partially into the interior of the sixth sensing block; Kth m The touch sensing group further includes a seventh sensing block, an eighth sensing block, and a ninth sensing block; the eighth and ninth sensing blocks are located in row b5, and the seventh sensing block is located in row b6; the eighth and ninth sensing blocks are located in columns a1 and a2, respectively, and the seventh sensing block is located in columns a1 and a2; the seventh sensing block extends at least partially into the interior of the eighth sensing block, and at least partially into the interior of the ninth sensing block; Rows b1, b3, b2, b4, b5, and b6 are arranged in sequence; Kth m The first, third, and eighth sensing blocks in each of the touch sensing groups are all electrically connected to the same first transmission line; the second, fourth, and ninth sensing blocks in each of the touch sensing groups are all electrically connected to the same second transmission line; and the fifth, sixth, and seventh sensing blocks in each of the touch sensing groups are all electrically connected to the same third transmission line.

8. A touch display panel, characterized in that, include: The touch structure as described in any of claims 1-7 above.

9. A touch device, characterized in that, include: At least two multiplexing units, at least two signal acquisition units, a control unit, and a touch display panel as described in claim 8; Both the multiplexing unit and the signal acquisition unit are electrically connected to the control unit. Kth m In the aforementioned touch sensing group, the first sensing block and the third sensing block are electrically connected to the multiplexing unit in the Mth column via the same first transmitting line, and the second sensing block and the fourth sensing block are electrically connected to the multiplexing unit in the Mth column via the same second transmitting line; the first sensing block, the second sensing block, the third sensing block and the fourth sensing block are all electrically connected to the signal acquisition unit in the Kth row via receiving lines.

10. A touch detection method, applied to the touch device as described in claim 9, characterized in that, include: When the multiplexing unit selects the first transmit line to drive the first and third sensing blocks in the touch sensing group, the first feedback signal output by the signal acquisition unit is acquired. When the multiplexing unit selects the second transmit line to drive the second and fourth sensing blocks in the touch sensing group, the second feedback signal output by the signal acquisition unit is acquired. If only the first feedback signal is obtained, the touch position is determined to be the first sensing area; If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is less than that of the second feedback signal, the touch position is determined to be the second sensing area. If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is greater than that of the second feedback signal, the touch position is determined to be the third sensing area. If only the second feedback signal is obtained, the touch position is determined to be the fourth sensing area; The area occupied by at least a portion of the first main body of the first sensing block corresponds to the first sensing area; the area occupied by at least a portion of the second sensing block and at least a portion of the first extension of the first sensing block corresponds to the second sensing area; the area occupied by at least a portion of the third sensing block and at least a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area; and the area occupied by at least a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area.

11. The touch detection method according to claim 10, characterized in that, Also includes: If both the first feedback signal and the second feedback signal are obtained, and the absolute value of the difference between the signal amount of the second feedback signal and the signal amount of the first feedback signal is less than the third preset signal amount, the touch position is determined to be the fifth sensing area. The area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area; The area occupied by a portion of the second sensing block and a portion of the first extension of the first sensing block corresponds to the second sensing area; the area occupied by a portion of the third sensing block and a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area; The area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area; The area occupied by another part of the first main body and another part of the first extension of the first sensing block, another part of the second sensing block, another part of the fourth main body and another part of the fourth extension of the fourth sensing block, and another part of the third sensing block corresponds to the fifth sensing area; the fifth sensing area is located between the first sensing area and the second sensing area, and between the third sensing area and the fourth sensing area.

12. The touch detection method according to claim 10, characterized in that, Also includes: If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is greater than that of the second feedback signal, and the signal strength of the first feedback signal is greater than that of the first preset signal, and the signal strength of the second feedback signal is less than that of the second preset signal, then the touch position is determined to be the fifth sensing area. If both the first feedback signal and the second feedback signal are obtained, and the signal strength of the first feedback signal is less than that of the second feedback signal, and the signal strength of the first feedback signal is less than that of the first preset signal, and the signal strength of the second feedback signal is greater than that of the second preset signal, then the touch position is determined to be the sixth sensing area. The area occupied by a portion of the first main body of the first sensing block corresponds to the first sensing area; The area occupied by a portion of the second sensing block and a portion of the first extension of the first sensing block corresponds to the second sensing area; the area occupied by a portion of the third sensing block and a portion of the fourth extension of the fourth sensing block corresponds to the third sensing area; The area occupied by a portion of the fourth main body of the fourth sensing block corresponds to the fourth sensing area; The area occupied by the other part of the first main body of the first sensing block, the other part of the third sensing block, and the other part of the fourth extension of the fourth sensing block corresponds to the fifth sensing area; The fifth sensing area is located between the first sensing area and the third sensing area; The area occupied by the other part of the fourth main body of the fourth sensing block, the other part of the second sensing block, and the other part of the first extension of the first sensing block corresponds to the sixth sensing area; The sixth sensing area is located between the second sensing area and the fourth sensing area.

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