Touch module, display panel

Abstract

The present disclosure relates to the field of display technology, and proposes a touch module and a display panel. The touch module includes: a touch electrode structure and a touch integrated circuit. The touch electrode structure includes a plurality of touch nodes. The touch integrated circuit is connected to the touch electrode structure and is used to obtain a touch area according to a capacitance value on the touch node and a reference capacitance value. The touch integrated circuit is also used to locally adjust the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration. The touch module can solve the problem of long-term touch failure.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a touch control module and a display panel. Background Art

[0002] In a low temperature environment, when a finger touches the electrode structure, the electrode structure will heat up due to the higher temperature of the finger. The increase in capacitance of the touch area caused by the increase in temperature of the electrode structure will offset the decrease in capacitance of the touch area caused by the finger touching, thereby causing touch failure.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

[0004] Public Content

[0005] According to one aspect of the present disclosure, a touch module is provided, wherein the touch module includes: a touch electrode structure and a touch integrated circuit, wherein the touch electrode structure includes multiple touch nodes; the touch integrated circuit is connected to the touch electrode structure, and is used to obtain a touch area according to a capacitance value on the touch node and a reference capacitance value; wherein the touch integrated circuit is also used to locally adjust the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration.

[0006] In an exemplary embodiment of the present disclosure, before the touch integrated circuit locally adjusts the reference capacitance value corresponding to the touch node in the touch area, the touch integrated circuit is further configured to integrally adjust the reference capacitance value corresponding to all the touch nodes according to the ambient temperature.

[0007] In an exemplary embodiment of the present disclosure, the reference capacitance values ​​corresponding to all the touch control nodes are adjusted as a whole according to the ambient temperature, including:

[0008] Acquiring capacitance values ​​of all the touch nodes on the touch electrode structure in a non-touch state;

[0009] Obtaining an average value of the capacitance values ​​of the touch nodes according to the capacitance values ​​of all the touch nodes;

[0010] The reference capacitance values ​​corresponding to all the touch nodes are adjusted to the average value.

[0011] In an exemplary embodiment of the present disclosure, acquiring a touch area according to a capacitance value on the touch node and a reference capacitance value includes:

[0012] Acquire a touch node whose capacitance value and a reference capacitance value have a difference greater than a first threshold as a quasi-point position;

[0013] A preset area around the accurate reporting point position is set as the touch area.

[0014] In an exemplary embodiment of the present disclosure, locally adjusting the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration includes:

[0015] Retrieving a preset first mapping data, wherein the first mapping data includes reference capacitance values ​​corresponding to each touch node in the touch area under different ambient temperatures and different touch durations;

[0016] Based on the first mapping data, and according to the ambient temperature and the touch duration, a reference capacitance value corresponding to each touch node in the touch area is obtained.

[0017] In an exemplary embodiment of the present disclosure, the first mapping data is obtained by a preset method, and the preset method includes:

[0018] Obtaining the average temperature of the touch area under a preset ambient temperature and a preset touch duration;

[0019] Under the average temperature state, the capacitance value of any touch node in the touch area in the non-touch state is obtained as the reference capacitance value corresponding to all touch nodes in the touch area under the preset ambient temperature and preset touch duration.

[0020] In an exemplary embodiment of the present disclosure, the first mapping data is obtained by a preset method, and the preset method includes:

[0021] Under the preset ambient temperature and preset touch duration conditions, the temperature of each touch node in the touch area is obtained as the actual temperature;

[0022] In the non-touch state, the capacitance value of each touch node at the actual temperature corresponding thereto is obtained as the reference capacitance value corresponding to the touch node at the preset ambient temperature and the preset touch duration.

[0023] In an exemplary embodiment of the present disclosure, the touch control integrated circuit is further used for:

[0024] The actual reporting point position is obtained in the touch area.

[0025] In an exemplary embodiment of the present disclosure, obtaining the actual reporting point position in the touch control area includes:

[0026] Acquiring capacitance values ​​of each touch node in the touch area;

[0027] Acquire a preset third mapping data, wherein the third mapping data includes compensation coefficients corresponding to different touch nodes in the touch area under different ambient temperatures and different touch durations;

[0028] Based on the third mapping data, according to the ambient temperature and the touch duration, a compensation coefficient of each touch node in the touch area is obtained, and according to the compensation coefficient and the capacitance value of the touch node, a compensation capacitance value of the touch node is obtained, wherein the compensation capacitance value is equal to the product of the capacitance value of the touch node and the compensation coefficient;

[0029] Obtaining an average value of compensation capacitance values ​​of each touch node in the touch area;

[0030] The touch node in the touch area whose capacitance value is closest to the average value is the actual reporting point position.

[0031] In an exemplary embodiment of the present disclosure, the third mapping data is obtained by a preset method, and the preset method includes:

[0032] At the touch start time, the capacitance value of each touch node in the touch area is obtained as the initial capacitance value C1;

[0033] Under the preset ambient temperature and preset touch duration conditions, the capacitance value of each touch node in the touch area is obtained as the actual capacitance value C2, and the temperature of each touch node in the touch area is obtained as the actual temperature;

[0034] In a non-touch state, obtaining a capacitance value of each touch node at the actual temperature as an intermediate capacitance value C3;

[0035] The compensation coefficient of the touch node in the touch area under the preset ambient temperature and the preset touch duration is obtained as ((C2-C3)+C1) / C2.

[0036] In an exemplary embodiment of the present disclosure, acquiring a touch area according to a capacitance value on the touch node and a reference capacitance value includes:

[0037] Acquire a touch node whose capacitance value and a reference capacitance value have a difference greater than a first threshold as a quasi-point position;

[0038] Setting a preset area around the position of the accurate reporting point as the touch area;

[0039] The touch control integrated circuit is used to obtain the touch control area in real time, and the actual reporting point position in the current touch control cycle is used as the quasi-reporting point position in the next adjacent touch control cycle.

[0040] In an exemplary embodiment of the present disclosure, the touch integrated circuit is further used to obtain the ambient temperature, and the touch integrated circuit obtains the ambient temperature, including:

[0041] Acquiring capacitance values ​​of all the touch nodes on the touch electrode structure;

[0042] The ambient temperature is determined according to the capacitance values ​​of all the touch nodes.

[0043] In an exemplary embodiment of the present disclosure, judging the ambient temperature according to the capacitance values ​​of all the touch nodes includes:

[0044] Obtaining an average value of the capacitance values ​​of the touch nodes according to the capacitance values ​​of all the touch nodes;

[0045] Calculating the difference between the capacitance value on each of the touch nodes and the average value, and acquiring the touch nodes whose difference is less than a second threshold as non-touch nodes;

[0046] An average capacitance value of the non-touch node is obtained, and the ambient temperature is obtained according to the average capacitance value of the non-touch node.

[0047] In an exemplary embodiment of the present disclosure, the touch control integrated circuit is further used to obtain touch control duration, and obtaining the touch control duration includes:

[0048] Acquire the position of the touch area in adjacent touch cycles, and when the position overlap rate of the touch areas in adjacent touch cycles is greater than 80%, determine that the touch actions in the adjacent touch cycles are continuous touches;

[0049] The touch duration is obtained according to the duration of the touch area during the continuous touch.

[0050] According to one aspect of the present disclosure, a display panel is provided, wherein the display panel includes the above-mentioned touch control module.

[0051] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0053] Figure 1 It is a touch control principle diagram of a capacitive touch control module in the related art;

[0054] Figure 2 This is a structural schematic diagram of an exemplary embodiment of the touch control module disclosed herein;

[0055] Figure 3The figure is a temperature distribution diagram of the touch control area in an exemplary embodiment of the touch control module disclosed in the present invention. DETAILED DESCRIPTION

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0057] The terms "a", "an", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to indicate an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0058] In the related art, a capacitive touch module may include a touch electrode structure and a touch integrated circuit. Different areas on the touch electrode structure may form different touch nodes. The touch integrated circuit may determine the touch position according to the capacitance changes of different touch nodes. Figure 1 As shown, it is a touch control principle diagram of a capacitive touch control module in the related art. Under normal temperature environment, when the finger does not touch the touch control electrode structure, the capacitance value of each touch control node on the touch control electrode structure is the first reference capacitance value baseline0. When the finger touches the touch control electrode structure, the capacitance value of the touch control node touched by the finger will decrease by Δda_F, so that the touch control integrated circuit can judge the touch control position according to the difference between the first reference capacitance value baseline0 and the capacitance on the touch control node. When the difference between the first reference capacitance value baseline0 and the capacitance on the touch control node is greater than the preset value, it can be judged that the touch control node is touched. In a low temperature environment, the dielectric constant of the dielectric in the touch electrode structure changes with temperature, resulting in the capacitance value of the touch node on the touch electrode structure being reduced to a second baseline capacitance value baseline1 in a non-touch state, wherein baseline0-baseline1=da_T, so that the touch integrated circuit can determine the touch position according to the difference between the second baseline capacitance value baseline1 and the capacitance on the touch node, and when the difference between the first baseline capacitance value baseline1 and the capacitance on the touch node is greater than a preset value, it can be determined that the touch node is touched.

[0059] However, in a low temperature environment, when a finger touches the touch electrode structure for a long time, the temperature of the touch electrode structure will rise due to the heat transfer of the finger, so that the capacitance value of the touched position of the touch electrode structure will increase with the temperature rise. As a result, although the finger makes a touch action, the difference between the second baseline capacitance value baseline1 and the capacitance on the touched node is less than the above preset value, that is, the touch fails.

[0060] Based on this, this exemplary embodiment provides a touch module, such as Figure 2 The figure is a schematic diagram of the structure of an exemplary embodiment of the touch module of the present disclosure. The touch module may include: a touch electrode structure 1 and a touch integrated circuit 2, wherein the touch electrode structure 1 may include a plurality of touch nodes; the touch integrated circuit 2 may be connected to the touch electrode structure 1, and the touch integrated circuit 2 may be used to obtain a touch area according to the capacitance value on the touch node and the reference capacitance value; the touch integrated circuit 2 may also be used to locally adjust the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration.

[0061] In this exemplary embodiment, the touch control integrated circuit 2 can be used to determine the temperature change state of the touch control area according to the ambient temperature and the touch control duration, so as to locally adjust the reference capacitance value corresponding to the touch node in the touch control area according to the temperature change state of the touch control area. For example, in a low temperature environment, the reference capacitance value of the touch control area can be locally increased according to the ambient temperature and the touch control duration, so as to ensure that the difference between the reference capacitance value of the touch control area and the capacitance value of the touch control area is greater than the above-mentioned preset value, that is, to ensure that the touch control is continuously effective.

[0062] In this exemplary embodiment, the touch electrode structure may be a mutual capacitance electrode structure, the touch electrode structure may include a transmitting electrode and a receiving electrode, the transmitting electrode and the receiving electrode may be integrated in the entire display area of ​​the display panel, and different mutual capacitance positions of the transmitting electrode and the receiving electrode may form a touch node. It should be understood that in other exemplary embodiments, the touch electrode structure may be a self-capacitive electrode structure.

[0063] According to the related technical section, the ambient temperature will affect the reference capacitance value corresponding to the touch node. In this exemplary embodiment, before the touch integrated circuit locally adjusts the reference capacitance value in the touch area, the touch integrated circuit can also be used to adjust the reference capacitance value corresponding to all touch nodes as a whole according to the ambient temperature. For example, when the temperature rises, the reference capacitance value corresponding to all touch nodes can be adjusted to be larger as a whole, and when the temperature drops, the reference capacitance value corresponding to all touch nodes can be adjusted to be smaller as a whole. This setting can adjust the reference capacitance value corresponding to the touch node in real time according to the ambient temperature, thereby avoiding touch failure caused by changes in ambient temperature. Specifically, adjusting the reference capacitance value corresponding to all touch nodes as a whole according to the ambient temperature can include: obtaining the capacitance value of all touch nodes on the touch electrode structure in a non-touch state; obtaining the average value of the capacitance value of the touch node according to the capacitance value of all touch nodes; and adjusting the reference capacitance value corresponding to all touch nodes to the average value.

[0064] In this exemplary embodiment, locally adjusting the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration may include: In an exemplary embodiment of the present disclosure, locally adjusting the reference capacitance value corresponding to the touch node in the touch area according to the ambient temperature and the touch duration includes: retrieving a preset first mapping data, the first mapping data including the reference capacitance value corresponding to each touch node in the touch area under different ambient temperatures and different touch durations; based on the first mapping data, obtaining the reference capacitance value corresponding to each touch node in the touch area according to the ambient temperature and the touch duration. Among them, the first mapping data can be written into the touch integrated circuit in advance, and during the touch process, the touch integrated circuit can directly obtain the reference capacitance value corresponding to the ambient temperature and the touch duration in the first mapping data according to the ambient temperature and the touch duration, and adjust the reference capacitance value of all touch nodes in the touch area to the reference capacitance value obtained from the first mapping data.

[0065] In this exemplary embodiment, the first mapping data can be obtained in advance by a preset method, and the preset method may include: obtaining the average temperature of the touch area under the preset ambient temperature and preset touch duration; in the average temperature state, obtaining the capacitance value of any touch node in the touch area in the non-touch state as the reference capacitance value corresponding to all touch nodes in the touch area under the preset ambient temperature and preset touch duration. It should be understood that in other exemplary embodiments, the preset method may also have other ways, for example, the preset method may include: obtaining the median temperature of the touch nodes in the touch area under the preset ambient temperature and preset touch duration; in the non-touch state, obtaining the capacitance value of any touch node in the touch area under the median temperature state as the reference capacitance value corresponding to all touch nodes in the touch area under the preset ambient temperature and preset touch duration.

[0066] In this exemplary embodiment, obtaining the touch area according to the capacitance value on the touch node and the reference capacitance value may include: obtaining the touch node whose capacitance value and the reference capacitance value have a difference greater than a first threshold as the quasi-reporting point position; setting the preset area around the quasi-reporting point position as the touch area. For example, the touch area may be set to a circular area, a square area, a regular polygonal area, etc. with the quasi-reporting point position as the centroid. The finger width is generally 10mm-20mm. In this exemplary embodiment, the touch area may be set to a square with the quasi-reporting point position as the centroid, and the side length of the square may be 10mm-20mm, such as 10mm, 15mm, 20mm. In this exemplary embodiment, the touch node may also be a square, and the side length of the touch node may be 2-5mm.

[0067] It should be noted that at the beginning of the finger touching the touch area, the temperature of the touch electrode structure does not change, and the touch integrated circuit does not need to adjust the reference voltage of the touch area when acquiring the touch area. At the subsequent moment when the finger touches the touch area, the touch integrated circuit can adjust the reference capacitance value of the touch area determined at the initial moment of the touch based on the above adjustment method, and then re-acquire the accurate reporting point position and the touch area based on the adjusted reference capacitance value. In addition, the touch integrated circuit can also acquire the touch area in real time, and the touch area determined in the previous touch cycle can be adjusted by the reference capacitance value in this touch cycle to re-acquire the accurate reporting point position and the touch area.

[0068] It should be understood that in other exemplary embodiments, there may be other ways to obtain the touch area based on the capacitance value on the touch node and the reference capacitance value. For example, the area formed by the touch nodes whose capacitance value and the reference capacitance value have a difference greater than a third threshold value may be used as the touch area, and the third threshold value is less than the first threshold value.

[0069] In this exemplary embodiment, Figure 3 As shown in FIG. 1 , it is a temperature distribution diagram of the touch control area in an exemplary embodiment of the touch control module disclosed in the present invention. Figure 3 As shown, the block B is the touch node, and the area surrounded by the dotted frame A is the touch area. In the touch area, the lower the grayscale, the higher the temperature. Figure 3 It can be seen that after a finger touches the touch area, the temperature of each position in the touch area is not uniform, and the closer to the center of the touch area, the higher the temperature. However, in the process of adjusting the reference capacitance value of the touch area, the above embodiment adjusts the reference capacitance values ​​of all touch nodes in the touch area to the same value, that is, the above reference capacitance value adjustment method does not take into account the problem of uneven temperature in the touch area. Although the above solution can solve the problem of long-term touch failure, it is obvious that the solution cannot obtain an accurate touch area.

[0070] Based on this, in this exemplary embodiment, the first mapping data can also be obtained by other preset methods, which can include: obtaining the temperature of each touch node in the touch area as the actual temperature under the preset ambient temperature and preset touch duration; in the non-touch state, obtaining the capacitance value of each touch node at the actual temperature corresponding to it as the reference capacitance value corresponding to the touch node under the preset ambient temperature and preset touch duration. Wherein, obtaining the temperature of each touch node in the touch area can be achieved by infrared thermal imaging technology.

[0071] In an exemplary embodiment of the present disclosure, the touch integrated circuit can also be used to: obtain the actual reporting point position in the touch area. Wherein, obtaining the actual reporting point position in the touch area may include: obtaining the capacitance value of each touch node in the touch area; obtaining a preset third mapping data, the third mapping data may include compensation coefficients corresponding to different touch nodes in the touch area under different ambient temperatures and different touch durations; based on the third mapping data, according to the ambient temperature and touch duration, obtaining the compensation coefficient of each touch node in the touch area, and obtaining the compensation capacitance value of the touch node according to the compensation coefficient and capacitance value of the touch node, the compensation capacitance value is equal to the product of the capacitance value of the touch node and the compensation coefficient; obtaining the average value of the compensation capacitance values ​​of each touch node in the touch area; obtaining the touch node in the touch area whose capacitance value is closest to the average value as the actual reporting point position. For example, the touch area includes four touch nodes: N1, N2, N3, and N4; the touch integrated circuit can obtain the capacitance value V1 of the touch node N1, the capacitance value V2 of the touch node N2, the capacitance value V3 of the touch node N3, and the capacitance value V4 of the touch node N4; then, the touch integrated circuit can obtain the compensation coefficient a1 corresponding to the touch node N1, the compensation coefficient a2 corresponding to the touch node N2, the compensation coefficient a3 corresponding to the touch node N3, and the compensation coefficient a4 corresponding to the touch node N4 in the third mapping data according to the ambient temperature and the touch duration; then the touch integrated circuit The integrated circuit can obtain the compensation capacitance value V1*a1 of the touch node N1, the compensation capacitance value V2*a2 of the touch node N2, the compensation capacitance value V3*a3 of the touch node N3, and the compensation capacitance value V4*a4 of the touch node N4; then the touch integrated circuit can obtain the average value V0 of the compensation capacitance values ​​of each touch node in the touch area = (V1*a1+V2*a2+V3*a3+V4*a4) / 4; finally, the touch integrated circuit can obtain the touch node whose capacitance value is closest to the average value V0 among the touch nodes N1, N2, N3, and N4 as the actual reporting point position. In this exemplary embodiment, the touch integrated circuit can be used to obtain the touch area in real time, and the actual reporting point position in this touch cycle can also be used for the quasi-reporting point position in the next adjacent touch cycle.

[0072] It should be understood that in other exemplary embodiments, there may be other ways to obtain the actual reporting point position in the touch area. For example, the touch node with the largest compensation capacitance value in the touch area may be obtained as the actual reporting point position. For another example, the touch node corresponding to the median compensation capacitance value in the touch area may be obtained as the actual reporting point position.

[0073] In this exemplary embodiment, the third mapping data can be obtained by a preset method, which may include: at the start of touch, obtaining the capacitance value of each touch node in the touch area as an initial capacitance value C1; obtaining the capacitance value of each touch node in the touch area as an actual capacitance value C2 under a preset ambient temperature and a preset touch duration, and obtaining the temperature of each touch node in the touch area as an actual temperature; in a non-touch state, obtaining the capacitance value of each touch node at the actual temperature as an intermediate capacitance value C3; obtaining the compensation coefficient of the touch node in the touch area under the preset ambient temperature and preset touch duration as ((C2-C3)+C1) / C2. The compensation coefficient can compensate for the influence of the temperature on the capacitance value of the touch node.

[0074] In this exemplary embodiment, the touch integrated circuit can also be used to obtain the ambient temperature. The touch integrated circuit obtains the ambient temperature, which may include: obtaining the capacitance values ​​of all touch nodes on the touch electrode structure; judging the ambient temperature according to the capacitance values ​​of all touch nodes. Specifically, judging the ambient temperature according to the capacitance values ​​of all touch nodes may include: obtaining the average value of the capacitance values ​​of the touch nodes according to the capacitance values ​​of all touch nodes; calculating the difference between the capacitance value and the average value on each touch node, and obtaining the touch nodes whose difference is less than the second threshold as non-touch nodes; obtaining the average capacitance value of the non-touch nodes, and obtaining the ambient temperature according to the average capacitance value of the non-touch nodes. The capacitance value of the touch node has a corresponding relationship with the ambient temperature, and the touch integrated circuit can use the corresponding relationship to obtain the ambient temperature according to the average capacitance value of the non-touch node. In this exemplary embodiment, the non-touch nodes (touch nodes where no touch occurs) can be selected by the second threshold, and the ambient temperature obtained by this method has a high accuracy.

[0075] In this exemplary embodiment, the touch integrated circuit can also be used to obtain the touch duration, and obtaining the touch duration may include: obtaining the position of the touch area in adjacent touch cycles, and when the position overlap rate of the touch area in adjacent touch cycles is greater than 80%, the touch action of the adjacent touch cycle is judged to be a continuous touch; and the touch duration is obtained according to the duration of the touch area maintained in the continuous touch. It should be understood that in other exemplary embodiments, obtaining the touch duration may include other methods, for example, obtaining the actual reporting point position of adjacent touch cycles, and when the distance between the actual reporting point positions of adjacent touch cycles is less than the fourth threshold, the touch action of the adjacent touch cycle is judged to be a continuous touch; then, the touch duration can be obtained according to the duration of the touch area maintained in the continuous touch. Among them, the fourth threshold can be less than 2mm, for example, 1mm, 2mm, etc.

[0076] In this exemplary embodiment, the ambient temperature can be understood as the natural ambient temperature of the touch module. It should be understood that the temperature of the touch electrode structure is not only related to the natural ambient temperature, but also the heating of the display panel will affect the temperature of the touch electrode. Therefore, the ambient temperature in this exemplary embodiment can also be understood as the temperature of the touch electrode.

[0077] This exemplary embodiment also provides a display panel, wherein the display panel includes the above-mentioned touch control module. The display panel can be applied to display devices such as mobile phones, tablet computers, and televisions.

[0078] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing what is disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

[0079] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A touch module, wherein: The touch control module comprises: A touch electrode structure, including a plurality of touch nodes; A touch integrated circuit, connected to the touch electrode structure, and used to obtain a touch area according to a capacitance value on the touch node and a reference capacitance value; Wherein, the touch control integrated circuit is further used to locally adjust the reference capacitance value corresponding to the touch control node in the touch control area according to the ambient temperature and the touch control duration; The touch control integrated circuit is also used for: Acquire the actual reporting point position in the touch area; Acquiring the actual reporting point position in the touch area includes: Acquiring capacitance values ​​of each touch node in the touch area; Acquire a preset third mapping data, wherein the third mapping data includes compensation coefficients corresponding to each touch node in the touch area under different ambient temperatures and different touch durations; Based on the third mapping data, according to the ambient temperature and the touch duration, a compensation coefficient of each touch node in the touch area is obtained, and according to the compensation coefficient and the capacitance value of the touch node, a compensation capacitance value of the touch node is obtained, wherein the compensation capacitance value is equal to the product of the capacitance value of the touch node and the compensation coefficient; Obtaining an average value of compensation capacitance values ​​of each touch node in the touch area; The touch node in the touch area whose capacitance value is closest to the average value is the actual reporting point position.

2. The touch control module according to claim 1, wherein: Before the touch integrated circuit partially adjusts the reference capacitance values ​​corresponding to the touch nodes in the touch area, the touch integrated circuit is further configured to integrally adjust the reference capacitance values ​​corresponding to all the touch nodes according to the ambient temperature.

3. The touch module according to claim 2, wherein: The reference capacitance values ​​corresponding to all the touch control nodes are adjusted as a whole according to the ambient temperature, including: Acquiring capacitance values ​​of all the touch nodes on the touch electrode structure in a non-touch state; Obtaining an average value of capacitance values ​​on the touch nodes according to capacitance values ​​of all the touch nodes; The reference capacitance values ​​corresponding to all the touch nodes are adjusted to the average value.

4. The touch module according to claim 1, wherein: Acquiring a touch area according to the capacitance value on the touch node and a reference capacitance value, including: Acquire a touch node whose capacitance value and a reference capacitance value have a difference greater than a first threshold as a quasi-point position; A preset area around the accurate reporting point position is set as the touch area.

5. The touch control module according to claim 1, wherein: The reference capacitance value corresponding to the touch node in the touch area is locally adjusted according to the ambient temperature and the touch duration, including: Retrieving a preset first mapping data, wherein the first mapping data includes reference capacitance values ​​corresponding to each touch node in the touch area under different ambient temperatures and different touch durations; Based on the first mapping data, and according to the ambient temperature and the touch duration, a reference capacitance value corresponding to each touch node in the touch area is obtained.

6. The touch control module according to claim 5, wherein: The first mapping data is obtained by a preset method, and the preset method includes: Obtaining the average temperature of the touch area under a preset ambient temperature and a preset touch duration; Under the average temperature state, the capacitance value of any touch node in the touch area in the non-touch state is obtained as the reference capacitance value corresponding to all touch nodes in the touch area under the preset ambient temperature and preset touch duration.

7. The touch control module according to claim 5, wherein: The first mapping data is obtained by a preset method, and the preset method includes: Under the preset ambient temperature and preset touch duration conditions, the temperature of each touch node in the touch area is obtained as the actual temperature; In the non-touch state, the capacitance value of each touch node at the actual temperature corresponding thereto is obtained as the reference capacitance value corresponding to the touch node at the preset ambient temperature and the preset touch duration.

8. The touch module according to claim 1, wherein: The third mapping data is obtained by a preset method, and the preset method includes: At the touch start time, the capacitance value of each touch node in the touch area is obtained as the initial capacitance value C1; Under the preset ambient temperature and preset touch duration conditions, the capacitance value of each touch node in the touch area is obtained as the actual capacitance value C2, and the temperature of each touch node in the touch area is obtained as the actual temperature; In a non-touch state, obtaining a capacitance value of each touch node at the actual temperature as an intermediate capacitance value C3; The compensation coefficient of the touch node in the touch area under the preset ambient temperature and the preset touch duration is obtained as ((C2-C3)+C1) / C2.

9. The touch control module according to claim 8, wherein: Acquiring a touch area according to the capacitance value on the touch node and a reference capacitance value, including: Acquire a touch node whose capacitance value and a reference capacitance value have a difference greater than a first threshold as a quasi-point position; Setting a preset area around the accurate reporting point position as the touch area; The touch control integrated circuit is used to obtain the touch control area in real time, and the actual reporting point position in the current touch control cycle is used as the quasi-reporting point position in the next adjacent touch control cycle.

10. The touch control module according to claim 1, wherein: The touch integrated circuit is further used to obtain the ambient temperature. The touch integrated circuit obtains the ambient temperature, including: Acquiring capacitance values ​​of all the touch nodes on the touch electrode structure; The ambient temperature is determined according to the capacitance values ​​of all the touch nodes.

11. The touch control module according to claim 10, wherein: Determining the ambient temperature according to the capacitance values ​​of all the touch nodes includes: Obtaining an average value of capacitance values ​​on the touch nodes according to capacitance values ​​of all the touch nodes; Calculating the difference between the capacitance value on each of the touch nodes and the average value, and acquiring the touch nodes whose difference is less than a second threshold as non-touch nodes; An average capacitance value of the non-touch node is obtained, and the ambient temperature is obtained according to the average capacitance value of the non-touch node.

12. The touch control module according to claim 1, wherein: The touch control integrated circuit is further used to obtain the touch control duration, and obtaining the touch control duration includes: The positions of the touch areas in adjacent touch cycles are obtained. When the position overlap rate of the touch areas in adjacent touch cycles is greater than 80%, the touch actions in the adjacent touch cycles are determined to be continuous touches. The touch duration is obtained according to the duration of the touch area in the continuous touch.

13. A display panel, wherein: The touch control module comprises the touch control module according to any one of claims 1 to 12.

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