Driving method of touch display module and touch display module

Abstract

The invention relates to the technical field of electric data processing of touch display modules, in particular to a driving method of a touch display module and the touch display module.The touch display module comprises a plurality of touch panel layers and temperature sensing layers which are arranged in an attached mode and a driving control module electrically connected with the touch panel layers and the temperature sensing layers; the temperature sensing layer comprises a plurality of temperature detection nodes arranged in a display area of the touch panel layer, and the driving control module is used for running the driving method of the touch display module. Compared with the prior art, the touch display module has the temperature sensing capability by adding the temperature sensing layer, specifically, the temperatures of different positions of the touch display module are detected through the temperature detection nodes, so that the temperature sensing capability of the touch display module is improved through the distribution rule of the temperature detection values; therefore, the position where the touch display module is illuminated can be indirectly obtained, local adjustment is achieved, and the problem that in the prior art, a touch display module cannot be locally adjusted according to illumination is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical data processing of a touch display module, and in particular to a driving method of a touch display module and a touch display module. Background Art

[0002] A touch display module is an electronic device component that integrates touch sensing and display functions. It usually consists of a multi-layer structure, including but not limited to a touch layer, a display layer, a backlight layer, and necessary electronic control units. This module is widely used in various electronic products, such as smartphones, tablets, vending machines, bank self-service terminals, etc.

[0003] In larger touch display module application scenarios, such as in commercial complexes, office buildings, smart parks, and tourist attractions, these devices are often designed to provide interactive information services and operation interfaces. However, these large display devices may encounter visual problems caused by ambient lighting during actual application. Especially under strong local lighting conditions, some areas of the screen may become difficult to recognize due to reflection or glare, affecting the user's reading and interactive experience.

[0004] Therefore, people need a driving method of a touch display module and a touch display module that can be adjusted locally according to light. Summary of the invention

[0005] Therefore, the present invention provides a driving method of a touch display module and a touch display module, so as to solve the problem in the prior art that the touch display module cannot be locally adjusted according to light.

[0006] The present invention provides a method for driving a touch display module, which is applied to the touch display module. The touch display module includes a plurality of touch panel layers and a temperature sensing layer that are laminated and arranged, and a driving control module that is electrically connected to the touch panel layer and the temperature sensing layer. The temperature sensing layer includes a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer. The driving control module is used to run the driving method of the touch display module. The method includes: Obtaining multiple temperature detection values ​​based on multiple temperature detection nodes; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained; According to the temperature detection value in the illumination area, the average light intensity in the illumination area is obtained; The touch panel layer is driven and adjusted according to the illumination area and the average illumination intensity.

[0007] The present invention also provides a preferred solution: the multiple temperature detection nodes include multiple first temperature detection nodes and multiple second temperature detection nodes, the multiple first temperature detection nodes are arranged around the edge of the display area, the multiple second temperature detection nodes are arranged in the display area, the temperature detection value obtained by the first temperature detection node is the first temperature detection value, and the temperature detection value obtained by the second temperature node is the second temperature detection value; according to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained, including: Arranging the plurality of first temperature detection values ​​based on the position order of the first temperature detection nodes to obtain a temperature value sequence; Selecting a key subsequence from the temperature value sequence, wherein an average value of the first temperature detection value in the key subsequence is higher than an average value of other first temperature detection values ​​in the temperature value sequence; Obtaining the edge coverage number of the key subsequence according to the position of the first temperature detection node corresponding to each first temperature detection value in the key subsequence; If there is only one critical subsequence and the edge coverage number is greater than one, then based on the position of the first temperature detection node corresponding to each first temperature detection value in the critical subsequence, a critical area is obtained; The key area is confirmed according to the second temperature detection value located in the key area to obtain the illumination area.

[0008] The present invention also provides a preferred solution: selecting a key subsequence from a temperature value sequence, including: Set a sliding window of preset length on the sequence of temperature values; Moving the sliding window based on a preset step length, and calculating a first statistical characteristic value of a first temperature detection value within the sliding window during each movement; If the first statistical characteristic value exceeds a preset first threshold, the position of the sliding window at this time is marked as a key position; If the distance between the two key positions exceeds a preset distance threshold, the first temperature detection value sequence between the two key positions is used as a key subsequence.

[0009] The present invention also provides a preferred solution: according to the second temperature detection value located in the key area, the key area is confirmed to obtain the illumination area, including: According to the statistical characteristics of the key subsequence, the reference temperature range is obtained; Counting the proportion of second temperature detection values ​​whose values ​​are within the reference temperature range among all second temperature detection values ​​within the key area, to obtain a high temperature proportion value; If the high temperature ratio is greater than the preset ratio threshold, the key area is used as the illumination area.

[0010] The present invention also provides a preferred solution: driving and adjusting the touch panel layer according to the illumination area and the average illumination intensity, including: Obtaining initial display parameters of the illumination area, and obtaining target display parameters according to the initial display parameters and the average illumination intensity; Obtain an adjustment edge of the illuminated area, where the adjustment edge is an edge adjacent to the illuminated area and the non-illuminated area; A transition area is obtained according to the adjustment edge, the transition area is a portion of the display area extending along the adjustment edge, and the display parameters of the transition area gradually change from the initial display parameters to the target display parameters based on the direction from the non-illuminated area to the illuminated area; According to the illumination area and the transition area, the touch panel layer is driven and adjusted based on the target display parameters.

[0011] The present invention also provides a preferred solution: obtaining a transition area according to the adjusted edge, comprising: Calculate the difference between the initial display parameter and the target display parameter to obtain the display difference; Calculate the statistical characteristics of the first temperature detection value in the neighborhood of the preset endpoints of the two endpoints of the adjustment edge to obtain the second statistical characteristics; Calculating statistical features of the second temperature detection value in a preset edge neighborhood of the adjustment edge to obtain a third statistical feature; According to the display difference, the second statistical feature and the third statistical feature, a transition radius is obtained, where the transition radius is the length from the adjustment edge to the edge of the transition area according to the normal direction of the adjustment edge; By adjusting the edge and the transition radius, a transition area is obtained.

[0012] The present invention also provides a touch display module, comprising a plurality of touch panel layers and a temperature sensing layer laminated together, and a drive control module electrically connected to the touch panel layer and the temperature sensing layer, wherein the temperature sensing layer comprises a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer, and the drive control module is used to: Obtaining multiple temperature detection values ​​based on multiple temperature detection nodes; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained; According to the temperature detection value in the illumination area, the average light intensity in the illumination area is obtained; The touch panel layer is driven and adjusted according to the illumination area and the average illumination intensity.

[0013] The present invention also provides a preferred solution: the multiple temperature detection nodes include multiple first temperature detection nodes and multiple second temperature detection nodes, the multiple first temperature detection nodes are arranged around the edge of the display area, and the multiple second temperature detection nodes are arranged in the display area.

[0014] The beneficial effects of adopting the above embodiment are: The present invention provides a driving method of a touch display module, the touch display module includes a plurality of touch panel layers and a temperature sensing layer that are arranged in a laminated manner, and a driving control module that is electrically connected to the touch panel layer and the temperature sensing layer, the temperature sensing layer includes a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer, the driving control module is used to run the driving method of the touch display module, the method first obtains a plurality of temperature detection values ​​based on a plurality of temperature detection nodes, then obtains an illumination area in the display area according to the size relationship and position distribution relationship between the plurality of temperature detection values, then obtains an average illumination intensity in the illumination area according to the temperature detection value in the illumination area, and finally drives and adjusts the touch panel layer according to the illumination area and the average illumination intensity. Compared with the prior art, the present invention enables the touch display module to have the ability of temperature sensing by adding a temperature sensing layer, specifically, by detecting the temperature of different positions of the touch display module through the temperature detection node, so that the position where the touch display module is illuminated can be indirectly obtained through the distribution law of these temperature detection values, thereby realizing local adjustment, solving the problem that the touch display module in the prior art cannot be locally adjusted according to illumination. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of an embodiment of a touch display module provided by the present invention; Figure 2 A schematic structural diagram of an embodiment of a temperature sensing layer provided by the present invention; Figure 3 A method flow chart of an embodiment of a method for driving a touch display module provided by the present invention; Figure 4 for Figure 3 Specific method flow chart of step S302; Figure 5 Schematic diagrams of several key areas; Figure 6 for Figure 3 Specific method flow chart of step S304; Figure 7 Schematic diagram of the transition region. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Combination Figure 1 As shown, the present invention provides a touch display module, which includes a plurality of touch panel layers 110 and a temperature sensing layer 120 that are laminated, and a drive control module (not shown in the figure) that is electrically connected to the touch panel layer 110 and the temperature sensing layer 120, wherein the temperature sensing layer 120 includes a plurality of temperature detection nodes 121 arranged in a display area of ​​the touch panel layer 110, and the drive control module is used to: Obtaining multiple temperature detection values ​​based on multiple temperature detection nodes 121; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained; According to the temperature detection value in the illumination area, the average light intensity in the illumination area is obtained; The touch panel layer 110 is driven and adjusted according to the illumination area and the average illumination intensity.

[0018] In the above process, the touch panel layer 110 refers to any component layer in the existing touch display module, such as a glass layer, a touch layer, a polarizing layer, a display layer, a backlight layer, etc. The temperature sensing layer 120 is a newly added layer improved by the present invention, which is mainly used to detect temperature. In practice, it can be realized by any thin layer structure integrated with a temperature sensor, such as a thin film temperature sensor, an array-arranged fiber grating, etc. Each position for detecting temperature in the temperature sensing layer 120 is a temperature detection node 121. The temperature sensing layer 120 can be set between any two layers in the above touch panel layer 110 according to actual conditions, or at the back of all touch panel layers 110.

[0019] Taking into account factors such as the display quality and touch sensitivity of the touch display module, it is difficult to add a large-area photosensitive element between multiple touch panel layers 110 in the prior art. Even if a photosensitive layer for light sensing is added, the sensing accuracy of the photosensitive layer will drop sharply due to the obstruction of other touch panel layers 110 and the backlight of the touch display module itself, thereby affecting subsequent local adjustments.

[0020] In this embodiment, the temperature sensing layer 120 is used to overcome the above defects. On the one hand, large-area temperature sensing is easier to implement than optical sensing, and it is also easier to integrate between multiple touch panel layers 110. On the other hand, because the equipment that will be partially illuminated usually provides interactive information services and operation interfaces in environments such as commercial complexes, office buildings, smart parks, and tourist attractions, such as the screens of smart customer service terminals in shopping malls and parks, and the screens of vending machines in scenic spots, these objects have the characteristics of large areas and are difficult to move, and are generally exposed to light for a long time. In this case, even if the temperature sensing layer 120 is set at the back of the multiple touch panel layers 110, it can detect relatively accurate and obvious temperature changes, thereby indirectly and accurately judging the screen illumination conditions.

[0021] Compared with the prior art, the present invention enables the touch display module to have the ability of temperature sensing by adding a temperature sensing layer 120. Specifically, the temperature of different positions of the touch display module is detected by temperature detection nodes. In this way, the position where the touch display module is exposed to light can be indirectly obtained through the distribution pattern of these temperature detection values, thereby realizing local adjustment, thereby solving the problem in the prior art that the touch display module cannot be locally adjusted according to light.

[0022] Further, in a preferred embodiment, the multiple temperature detection nodes 121 include multiple first temperature detection nodes 1211 and multiple second temperature detection nodes 1212, the multiple first temperature detection nodes 1211 are arranged around the edge of the display area, and the multiple second temperature detection nodes 1212 are arranged in the display area. Figure 2 It is a specific structural diagram of a temperature sensing layer 120 with fiber Bragg grating as temperature detection node. In this embodiment, multiple temperature detection nodes 121 are further divided into a first temperature detection node 1211 for detecting the temperature of the edge of the screen and a second temperature detection node 1212 for detecting the inside of the screen. It can significantly reduce the difficulty of subsequent identification of the illuminated area and local adjustment of the screen, reduce hardware requirements and costs, and the specific principle will be discussed later.

[0023] Further, combined with Figure 3 As shown, a specific embodiment of the present invention discloses a method for driving a touch display module, which is applied to the above-mentioned touch display module. The touch display module includes a plurality of touch panel layers and a temperature sensing layer that are laminated and arranged, and a driving control module that is electrically connected to the touch panel layer and the temperature sensing layer. The temperature sensing layer includes a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer. The driving control module is used to run the method for driving the touch display module. The method includes: S301, obtaining multiple temperature detection values ​​based on multiple temperature detection nodes; S302, obtaining a light area in the display area according to a size relationship and a position distribution relationship between a plurality of temperature detection values; S303, obtaining an average light intensity in the illumination area according to the temperature detection value in the illumination area; S304 , driving and adjusting the touch panel layer according to the illumination area and the average illumination intensity.

[0024] Further, in a preferred embodiment, the multiple temperature detection nodes include multiple first temperature detection nodes and multiple second temperature detection nodes, the multiple first temperature detection nodes are arranged around the edge of the display area, and the multiple second temperature detection nodes are arranged in the display area.

[0025] Correspondingly, in the above step S301, the temperature detection value acquired by the first temperature detection node is the first temperature detection value, and the temperature detection value acquired by the second temperature node is the second temperature detection value.

[0026] Correspondingly, combined Figure 4 As shown, the above step S302, according to the size relationship and position distribution relationship between the multiple temperature detection values, obtains the illumination area in the display area, specifically including: S401, arranging a plurality of first temperature detection values ​​based on the position order of the first temperature detection nodes to obtain a temperature value sequence; S402, selecting a key subsequence from the temperature value sequence, wherein an average value of the first temperature detection value in the key subsequence is higher than an average value of other first temperature detection values ​​in the temperature value sequence; S403, obtaining the edge coverage number of the key subsequence according to the position of the first temperature detection node corresponding to each first temperature detection value in the key subsequence; S404: if there is only one key subsequence and the edge coverage number is greater than one, obtaining a key area based on the position of the first temperature detection node corresponding to each first temperature detection value in the key subsequence; S405: Confirm the key area according to the second temperature detection value in the key area to obtain the illumination area.

[0027] One of the keys of the present invention is how to identify the illuminated area based on multiple temperature detection values. Obviously, if there are multiple temperature detection values ​​that are significantly higher than other temperature detection values ​​and are densely distributed, then the positions corresponding to these temperature detection values ​​can be regarded as high temperature areas. How to select a cluster of temperature detection values ​​with higher temperatures from multiple temperature detection values ​​can be achieved by any method, such as calculating the average value and then comparing them in sequence by exhaustive method, or by more advanced and intelligent methods, such as deep learning, clustering algorithms, etc.

[0028] However, in practice, the number of temperature detection nodes is usually large, and due to cost and reliability considerations, it is unlikely that expensive computing units such as smart chips will be integrated into the touch display module, which results in most touch display modules not having sufficient hardware computing power to support the implementation of complex algorithms. Therefore, this embodiment further combines hardware and software methods to make improvements to solve the above problems.

[0029] Specifically, in this embodiment, multiple temperature detection nodes are further divided into a first temperature detection node for detecting the temperature of the edge of the screen and a second temperature detection node for detecting the inside of the screen. In this way, the process of searching for the illuminated area can be divided into two stages: searching for the key area and confirming the key area.

[0030] Among them, finding the key area can be achieved only by analyzing the first temperature detection value, that is, from the temperature value sequence composed of the first temperature detection value, find the key subsequence with a temperature value higher than other values. Then, the position of the first temperature detection node corresponding to the key subsequence is the edge of the screen where the temperature is higher when it is illuminated. At this time, combined with the specific situation of its edge (that is, the edge coverage number), a suspected illumination area, that is, the key area, can be preliminarily obtained. In this way, by analyzing the second temperature detection value inside the key area again (the second temperature value in the illumination area should also be generally high), it can be confirmed whether the key area is the actual illumination area. In this way, this embodiment simplifies the originally complex problem of analyzing a large amount of three-dimensional data (each temperature detection value, that is, its corresponding position coordinates) into analyzing a sequence (the position relationship is implicitly expressed through the sequence order), which greatly simplifies the complexity of finding the illumination area and reduces the hardware implementation requirements.

[0031] In addition, the edge coverage number in this embodiment refers to the number of edges of the screen covered by the position corresponding to the first temperature detection node corresponding to the key subsequence. When there is only one key subsequence and the edge coverage number is greater than one, the corresponding key area can be several cases as shown in 5, and these cases are the lighting conditions in most scenes in reality. Other cases (such as the lighting area is irregular, there are multiple lighting areas, etc.) can be avoided by selecting a reasonable position according to the actual situation when setting the touch display module device. Therefore, this embodiment can be said to be able to realize the identification of lighting areas in most scenes in reality through a simpler method and using cheaper hardware, and has good practicality.

[0032] Further, in a preferred embodiment, the above step S402, selecting a key subsequence from the temperature value sequence, specifically includes: Set a sliding window of preset length on the sequence of temperature values; Moving the sliding window based on a preset step length, and calculating a first statistical characteristic value of a first temperature detection value within the sliding window during each movement; If the first statistical characteristic value exceeds a preset first threshold, the position of the sliding window at this time is marked as a key position; If the distance between the two key positions exceeds a preset distance threshold, the first temperature detection value sequence between the two key positions is used as a key subsequence.

[0033] In the above process, the first statistical characteristic value refers to the mathematical characteristics of the first temperature detection value in the sliding window in statistics, such as variance, standard deviation, mean value, and the result calculated by the combination of the above indicators. The distribution of the first temperature detection value in the sliding window can be analyzed by the first statistical characteristic value. For example, a large standard deviation indicates that the first temperature detection value in the sliding window fluctuates greatly. At this time, the starting point or end point of the key subsequence may exist in the sliding window (i.e., the end point of the edge of the screen where the screen is illuminated and the temperature is high). The key position can be the position of the first value in the sliding window, the position of the last value, or the position of the value with the largest change. In practice, it can be flexibly specified as needed. Obviously, if the interval between two key positions is large (exceeding the preset first threshold), then it can be considered that the first temperature values ​​between the two key positions are generally high and fluctuate less. At this time, the first temperature detection value sequence between the two key positions can be regarded as a key subsequence. It can be understood that the preset first threshold in the above process can be obtained by experiments and the like according to the actual situation (specific touch display module structure, setting density of the first temperature detection node, etc.), and this article will not explain it in detail.

[0034] In this embodiment, the hardware of the touch display module only needs to calculate the statistical characteristics of several numerical values ​​in the sliding window each time, and maintain some simple marking information. There is no need to analyze the entire key subsequence at the same time. Through the sliding window method, the process of selecting key subsequences from the temperature value sequence is further simplified, and the hardware requirements are further reduced.

[0035] Further, in a preferred embodiment, the above step S405, confirming the key area according to the second temperature detection value in the key area to obtain the illumination area, specifically includes: According to the statistical characteristics of the key subsequence, the reference temperature range is obtained; Counting the proportion of second temperature detection values ​​whose values ​​are within the reference temperature range among all second temperature detection values ​​within the key area, to obtain a high temperature proportion value; If the high temperature ratio is greater than the preset ratio threshold, the key area is used as the illumination area.

[0036] Similarly, the statistical characteristics of the key subsequence in the above process also refer to the mathematical characteristics of the key subsequence in statistics, such as variance, standard deviation, mean value, and the results calculated by the combination of the above indicators. If a key area is an illuminated area, the size of the second temperature detection value inside it should be similar to the size of the first temperature detection value at the edge, and the standard for evaluating the second temperature detection value, that is, the reference temperature range, can be obtained through the key subsequence. If the proportion of the second temperature detection value in the reference temperature range in the key area (that is, the high temperature proportion value) exceeds a certain degree (that is, the preset proportion threshold, which can also be obtained through experiments according to actual conditions, generally 90%-95%), then it can be considered that the key area is an area exposed to large-area sunlight, that is, an illuminated area.

[0037] This embodiment further simplifies the process of confirming the illuminated area, that is, it is only necessary to perform statistical analysis on the key subsequences. In this way, for a large number of second temperature detection values, it is only necessary to simply compare the sizes and count the proportions to complete the identification of the illuminated area without the need for statistical analysis of a large number of second temperature detection values.

[0038] After confirming the illumination area, step S303 can be performed to obtain the average illumination intensity in the illumination area according to the temperature detection value in the illumination area. This step can be implemented in any way, for example, by obtaining a temperature-illumination corresponding curve through experiments, and then obtaining the average illumination intensity based on the temperature-illumination corresponding curve by taking the average value of the temperature detection value in the illumination area. Obviously, due to the influence of different touch display module structures and different actual use environments (such as seasons, temperatures, outdoor and indoor, etc.), the relationship between illumination and temperature changes in different touch display modules may also be different, but how to obtain the above relationship is a prior art that can be understood by those skilled in the art, so this article does not limit this.

[0039] Further, combined with Figure 6 As shown, in a preferred embodiment, the above step S304, driving and adjusting the touch panel layer according to the illumination area and the average illumination intensity, specifically includes: S601, obtaining initial display parameters of the illumination area, and obtaining target display parameters according to the initial display parameters and the average illumination intensity; S602, obtaining an adjustment edge of the illuminated area, where the adjustment edge is an edge adjacent to the illuminated area and the non-illuminated area; S603, obtaining a transition area according to the adjustment edge, where the transition area is a portion of the display area extending along the adjustment edge, and display parameters of the transition area gradually change from an initial display parameter to a target display parameter in a direction from the non-illuminated area to the illuminated area; S604 , driving and adjusting the touch panel layer based on the target display parameters according to the illumination area and the transition area.

[0040] In practice, the adjusted edge of the illumination area obtained by the above process may have a certain error with the actual illumination edge. At the same time, in the actual scene, the illumination edge may not be a sharp change but a soft gradient. Therefore, in this embodiment, when adjusting the illumination area, a transition area is further added to compensate for the error of the adjustment edge, while improving the softness of the gradient, improving the screen perception, and reducing the abruptness. Figure 7 As shown. It can be understood that the above display parameters are parameters related to screen display that can be affected by light, such as brightness, contrast, saturation, etc. How to adjust the above parameters according to the average light intensity is also a prior art that can be understood by those skilled in the art, and is related to the structure of the specific touch display module, so this article will not explain it in detail.

[0041] Further, in a preferred embodiment, the above step S503, obtaining the transition area according to the adjusted edge, specifically includes: Calculate the difference between the initial display parameter and the target display parameter to obtain the display difference; Calculate the statistical characteristics of the first temperature detection value in the neighborhood of the preset endpoints of the two endpoints of the adjustment edge to obtain the second statistical characteristics; Calculating statistical features of the second temperature detection value in a preset edge neighborhood of the adjustment edge to obtain a third statistical feature; According to the display difference, the second statistical feature and the third statistical feature, a transition radius is obtained, where the transition radius is the length from the adjustment edge to the edge of the transition area according to the normal direction of the adjustment edge; By adjusting the edge and the transition radius, a transition area is obtained.

[0042] Similarly, in the above process, the second statistical feature and the third statistical feature are also statistically related features, such as variance, etc. The preset endpoint neighborhood and the preset edge neighborhood are also values ​​flexibly specified according to the structure of the actual touch display module, the use environment and other factors, so this article will not explain them in detail. The display difference indicates the degree of change of the illuminated area and the non-illuminated area after adjustment, while the second statistical feature indicates the accuracy of the endpoint of the adjusted edge, and the third statistical feature indicates the accuracy of the adjusted edge itself. By analyzing the above three at the same time, a more reasonable transition radius can be determined to improve the user experience.

[0043] For example, the transition radius can be obtained by weighted summing the display difference, the second statistical feature and the third statistical feature, and then performing linear conversion. The transition radius is proportional to the display difference to reduce the abruptness of the screen change after adjustment; if the second statistical feature is larger, it indicates that the fluctuation of the first temperature detection value in the preset endpoint neighborhood of the two endpoints of the adjustment edge is larger, and the transition radius and the second statistical feature should also be proportional to compensate for the endpoint error; if the second statistical feature is larger, it indicates that the fluctuation of the second temperature detection value in the preset edge neighborhood of the adjustment edge is larger, and the transition radius and the third statistical feature should also be proportional to compensate for the edge error.

[0044] The present invention provides a driving method of a touch display module, the touch display module includes a plurality of touch panel layers and a temperature sensing layer that are arranged in a laminated manner, and a driving control module that is electrically connected to the touch panel layer and the temperature sensing layer, the temperature sensing layer includes a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer, the driving control module is used to run the driving method of the touch display module, the method first obtains a plurality of temperature detection values ​​based on a plurality of temperature detection nodes, then obtains an illumination area in the display area according to the size relationship and position distribution relationship between the plurality of temperature detection values, then obtains an average illumination intensity in the illumination area according to the temperature detection value in the illumination area, and finally drives and adjusts the touch panel layer according to the illumination area and the average illumination intensity. Compared with the prior art, the present invention enables the touch display module to have the ability of temperature sensing by adding a temperature sensing layer, specifically, by detecting the temperature of different positions of the touch display module through the temperature detection node, so that the position where the touch display module is illuminated can be indirectly obtained through the distribution law of these temperature detection values, thereby realizing local adjustment, solving the problem that the touch display module in the prior art cannot be locally adjusted according to illumination.

[0045] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for driving a touch display module, applied to a touch display module, characterized in that: The touch display module includes a plurality of touch panel layers and a temperature sensing layer that are laminated and arranged, and a drive control module that is electrically connected to the touch panel layer and the temperature sensing layer. The temperature sensing layer includes a plurality of temperature detection nodes arranged in a display area of ​​the touch panel layer. The drive control module is used to run a drive method of the touch display module, and the method includes: Obtaining multiple temperature detection values ​​based on multiple temperature detection nodes; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained; According to the temperature detection value in the illumination area, the average light intensity in the illumination area is obtained; The touch panel layer is driven and adjusted according to the illumination area and the average illumination intensity.

2. The method for driving a touch display module according to claim 1, characterized in that: The multiple temperature detection nodes include multiple first temperature detection nodes and multiple second temperature detection nodes, the multiple first temperature detection nodes are arranged around the edge of the display area, the multiple second temperature detection nodes are arranged in the display area, the temperature detection value obtained by the first temperature detection node is a first temperature detection value, and the temperature detection value obtained by the second temperature node is a second temperature detection value; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained, including: Arranging the plurality of first temperature detection values ​​based on the position order of the first temperature detection nodes to obtain a temperature value sequence; Selecting a key subsequence from the temperature value sequence, wherein an average value of the first temperature detection value in the key subsequence is higher than an average value of other first temperature detection values ​​in the temperature value sequence; Obtaining the edge coverage number of the key subsequence according to the position of the first temperature detection node corresponding to each first temperature detection value in the key subsequence; If there is only one critical subsequence and the edge coverage number is greater than one, then based on the position of the first temperature detection node corresponding to each first temperature detection value in the critical subsequence, a critical area is obtained; The key area is confirmed according to the second temperature detection value located in the key area to obtain the illumination area.

3. The driving method of the touch display module according to claim 2, characterized in that: Select key subsequences from the temperature value sequence, including: Set a sliding window of preset length on the sequence of temperature values; Moving the sliding window based on a preset step length, and calculating a first statistical characteristic value of a first temperature detection value within the sliding window during each movement; If the first statistical characteristic value exceeds a preset first threshold, the position of the sliding window at this time is marked as a key position; If the distance between the two key positions exceeds a preset distance threshold, the first temperature detection value sequence between the two key positions is used as a key subsequence.

4. The method for driving a touch display module according to claim 3, characterized in that: According to the second temperature detection value located in the key area, the key area is confirmed to obtain the illumination area, including: According to the statistical characteristics of the key subsequence, the reference temperature range is obtained; Counting the proportion of second temperature detection values ​​whose values ​​are within the reference temperature range among all second temperature detection values ​​within the key area, to obtain a high temperature proportion value; If the high temperature ratio is greater than the preset ratio threshold, the key area is used as the illumination area.

5. The driving method of the touch display module according to claim 2, characterized in that: The touch panel layer is driven and adjusted according to the illumination area and average illumination intensity, including: Obtaining initial display parameters of the illumination area, and obtaining target display parameters according to the initial display parameters and the average illumination intensity; Obtain an adjustment edge of the illuminated area, where the adjustment edge is an edge adjacent to the illuminated area and the non-illuminated area; A transition area is obtained according to the adjustment edge, the transition area is a portion of the display area extending along the adjustment edge, and the display parameters of the transition area gradually change from the initial display parameters to the target display parameters based on the direction from the non-illuminated area to the illuminated area; According to the illumination area and the transition area, the touch panel layer is driven and adjusted based on the target display parameters.

6. The driving method of the touch display module according to claim 5, characterized in that: The transition area is obtained according to the adjustment edge, including: Calculate the difference between the initial display parameter and the target display parameter to obtain the display difference; Calculate the statistical characteristics of the first temperature detection value in the neighborhood of the preset endpoints of the two endpoints of the adjustment edge to obtain the second statistical characteristics; Calculating statistical features of the second temperature detection value in a preset edge neighborhood of the adjustment edge to obtain a third statistical feature; According to the display difference, the second statistical feature and the third statistical feature, a transition radius is obtained, where the transition radius is the length from the adjustment edge to the edge of the transition area according to the normal direction of the adjustment edge; By adjusting the edge and the transition radius, a transition area is obtained.

7. A touch display module, characterized in that: The invention comprises a plurality of touch panel layers and a temperature sensing layer which are laminated and arranged, and a driving control module which is electrically connected to the touch panel layer and the temperature sensing layer. The temperature sensing layer comprises a plurality of temperature detection nodes which are arranged in the display area of ​​the touch panel layer. The driving control module is used for: Obtaining multiple temperature detection values ​​based on multiple temperature detection nodes; According to the size relationship and position distribution relationship between the multiple temperature detection values, the illumination area in the display area is obtained; According to the temperature detection value in the illumination area, the average light intensity in the illumination area is obtained; The touch panel layer is driven and adjusted according to the illumination area and the average illumination intensity.

8. The method for driving a touch display module according to claim 7, characterized in that: The plurality of temperature detection nodes include a plurality of first temperature detection nodes and a plurality of second temperature detection nodes. The plurality of first temperature detection nodes are arranged around the edge of the display area, and the plurality of second temperature detection nodes are arranged in the display area.

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