A photosensitive touch interaction method

Abstract

The present application discloses a photosensitive touch interaction method, which belongs to the field of display technology. The photosensitive touch interaction method is applied to a display module including multiple integrated modules, each of which is correspondingly provided with a number of pixel points and a photosensitive sensor, and the photosensitive touch interaction method includes the following steps: real-time output signal monitoring of each photosensitive sensor of the display module; judging whether a touch interaction currently occurs in the display module and performing corresponding touch interaction positioning according to the output signal of each photosensitive sensor. This technical solution can effectively solve the technical problem that the technical solution in the prior art that uses an additional touch system to realize the touch function of the corresponding display screen when realizing screen touch for large-size display screens makes the system structure of the display screen complicated, and also affects the display effect of the display screen and has the disadvantage of touch delay.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a photosensitive touch interaction method. Background Art

[0002] At present, there are three relatively mature methods for screen touch solutions for large-size LED display screens. The first is to install an infrared frame outside the screen, use infrared tubes to detect the infrared light reflected by the touch point, calculate the accurate coordinates of the touch point, and complete the touch refresh. The advantages of this method are low cost, low latency, and the ability to quickly and accurately determine the coordinates of the touch point. However, the disadvantage is that the placement of the infrared tube requires the screen to retain a circle of borders, and borderless display cannot be achieved. The second is to lay a layer of metal grid on the surface of the screen, use copper and other conductive metals and their oxides to densely cover the conductive layer of the PET substrate to form a grid with a regular shape, and realize the signal transmission function through inductive touch based on the fitted conductive film. Its advantages are low cost, simple process, high yield, curling, and low square resistance; the disadvantage is that it may produce moiré fringes, which is difficult to completely overcome. The third is to place a camera in front of the screen, first spray a layer of protective film on the screen surface, and use the preset camera in front of the screen to shoot the touch point, perform image processing, and realize the precise positioning of the screen touch point. Its advantages are high positioning accuracy and good screen integration effect; its disadvantages are high latency, and each time it is necessary to choose the camera placement and debug the touch system based on the on-site conditions.

[0003] It can be seen that in the above three solutions, the detection sensors for realizing the touch function are all independent of the display screen, that is, they all realize the touch function of the corresponding display screen through an additional touch system independent of the display screen structure. Although this can bring the advantages of low cost, low technical implementation difficulty, and easy maintenance, it inevitably increases the complexity of the display screen structure, and at the same time, it also affects the display effect of the display screen and has the disadvantage of touch delay. Summary of the invention

[0004] The main purpose of the present application is to propose a photosensitive touch interaction method, which aims to solve the technical problem that in the prior art, when implementing screen touch for large-size display screens, an additional touch system is used to implement the touch function of the corresponding display screen, which makes the system structure of the display screen complicated, and also affects the display effect of the display screen and has shortcomings such as touch delay.

[0005] To achieve the above-mentioned purpose, the present application provides a photosensitive touch interaction method, which is applied to a display module including multiple integrated modules, each of which is correspondingly provided with a number of pixel points and a photosensitive sensor, and the photosensitive touch interaction method includes the following steps: real-time output signal monitoring of each photosensitive sensor of the display module; judging whether touch interaction currently occurs in the display module and performing corresponding touch interaction positioning according to the output signal of each photosensitive sensor.

[0006] Optionally, the step of monitoring the real-time output signals of each photosensitive sensor of the display module specifically includes: detecting whether there is a photosensitive sensor with a sudden change in output signal, and when there is a photosensitive sensor with a sudden change in output signal, obtaining the position and number of the photosensitive sensors with the sudden change in output signal.

[0007] Optionally, the step of detecting whether a photosensor currently has an output signal mutation occurs specifically includes: if the output signal of any of the photosensors changes, detecting the signal change value of the corresponding photosensor, and when the signal change value is greater than a first preset threshold, determining that the corresponding photosensor currently has an output signal mutation.

[0008] Optionally, the step of determining whether touch interaction occurs in the display module and performing corresponding touch interaction positioning based on the output signals of each of the photosensitive sensors specifically includes: if there is currently no photosensitive sensor with a sudden change in output signal or the number of photosensitive sensors with a sudden change in output signal is greater than a second preset threshold, determining that no touch interaction currently occurs in the display module; if the number of photosensitive sensors with a sudden change in output signal is only one, determining that a point touch interaction currently occurs in the display module, and executing a preset point touch interaction positioning method to perform corresponding touch interaction positioning; if the number of photosensitive sensors with a sudden change in output signal is greater than one but less than the second preset threshold, determining that a surface touch interaction currently occurs in the display module, and executing a preset surface touch interaction positioning method to perform corresponding touch interaction positioning.

[0009] Optionally, the preset touch interaction positioning method includes the following steps: sequentially lighting up each pixel point on the integrated module where the photosensor with a sudden change in output signal is located to obtain a light intensity signal output by the corresponding photosensor when each pixel point is lit; comparing and sorting the light intensity signals corresponding to each pixel point when it is lit, and determining the coordinates of the pixel point with the strongest light intensity signal when the pixel point is lit as the touch point coordinates.

[0010] Optionally, the preset touch interaction positioning method includes the following steps: selecting the four pixel points located at the four outer corners of the integrated module where the photosensor with a sudden change in output signal is located; lighting up the four pixel points in time to obtain the light intensity signal output by the corresponding photosensor when each pixel point is lit; solving the point deviation according to the light intensity signal corresponding to the four pixel points when the four pixel points are lit in time, and calculating the corresponding touch point coordinates.

[0011] Optionally, the preset touch interaction positioning method includes the following steps: performing a preset pattern refresh operation on the integrated module where the photosensor with a sudden change in output signal is located, and obtaining the light intensity signal output by the photosensor corresponding to the preset pattern when the preset pattern is refreshed; comparing the coordinates of the pixel point corresponding to the light intensity signal in a preset database to determine them as the touch point coordinates.

[0012] Optionally, the method for establishing the preset database includes the following steps: performing a refresh operation of a preset pattern on each of the integrated modules, and when the current integrated module is performing a refresh operation, recording the light intensity signal output by the corresponding photosensor when the touch point is at each pixel point, so as to establish the preset database.

[0013] Optionally, the preset touch interaction positioning method includes the following steps: lighting up each pixel point on the integrated module where the photosensor with a sudden change in output signal is located at a time-sharing manner to determine whether the light intensity signal output by the corresponding photosensor when each pixel point is lit is greater than a third preset threshold; and determining the coordinates of the pixel point whose corresponding light intensity signal output by the photosensor when the pixel point is lit is greater than the preset threshold as the touch point coordinates.

[0014] Optionally, the preset surface touch interaction positioning method includes the following steps: calculating the contour of the touch surface according to the position and output signal strength of each photosensitive sensor that currently has a sudden change in output signal, and determining the touch point coordinates according to the contour of the touch surface.

[0015] The photosensitive touch interaction method provided in the present application is applied to a display module including multiple integrated modules, each integrated module is correspondingly provided with a number of pixels and a photosensitive sensor, so that each integrated module can be used as a minimum resolution unit of the display module to realize the following photosensitive touch interaction process: first, the output signals of each photosensitive sensor of the display module are monitored in real time. Then, according to the output signals of each photosensitive sensor, it is determined whether the display module is currently experiencing touch interaction and the corresponding touch interaction positioning is performed. Its working principle is specifically to use the light emitted by the pixels on the integrated module as the detection light source, so that when the touch object approaches a certain integrated module, the light emitted by the pixels of the corresponding integrated module will irradiate the surface of the touch object and form corresponding reflected light. At the same time, after the photosensitive sensor of the corresponding integrated module detects these reflected light through the light-guiding through hole, it can generate an electrical signal based on the light intensity of these reflected light to determine the position of the touch object, thereby realizing the real-time touch interaction of the display module. It can be seen that the present application realizes the touch interaction of the display screen module through an integrated packaging structure, which can effectively simplify the system structure of the display module without affecting the display effect of the display screen and without the disadvantage of touch delay. Therefore, the present technical solution can solve the technical problem that the technical solution of the prior art that uses an additional touch system to realize the touch function of the corresponding display screen when realizing screen touch for large-size display screens makes the system structure of the display screen complicated, and also affects the display effect of the display screen and has the disadvantage of touch delay. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A flowchart of the photosensitive touch interaction method provided in an embodiment of the present application.

[0018] Figure 2 A schematic cross-sectional structural diagram of an integrated module provided in an embodiment of the present application.

[0019] Figure 3 for Figure 1 A specific flow chart of step S120 of the photosensitive touch interaction method is shown.

[0020] Figure 4 A first flow chart of the preset touch interaction positioning method provided in an embodiment of the present application.

[0021] Figure 5A second flow chart of the preset touch interaction positioning method provided in an embodiment of the present application.

[0022] Figure 6 A third flow chart of the preset touch interaction positioning method provided in an embodiment of the present application.

[0023] Figure 7 A fourth flow chart of the preset touch interaction positioning method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] In one embodiment, Figure 1 As shown, the embodiment of the present application provides a light-sensitive touch interaction method, and the light-sensitive touch interaction method may specifically include the following steps:

[0026] Step S110: monitoring the output signals of the various light-sensitive sensors of the display module in real time.

[0027] Specifically, the light-sensitive touch interaction method of the embodiment of the present application is mainly applied to a plurality of Figure 2 In the display module of the integrated module 100 shown, several integrated modules 100 can be specifically distributed in a matrix and fixed on the module PCB board of the display module. Each integrated module 100 is correspondingly provided with several pixel points 110 and a photosensitive sensor 120. At the same time, in the packaging structure of the integrated module 100, the photosensitive sensor 120 and the several pixel points 110 are not on the same level, but on the front and back surfaces of the integrated substrate 130. In this way, the normal packaging of the several pixel points 110 will not be affected by the volume problem of the photosensitive sensor 120. A number of pixel points 110 may be specifically distributed in a matrix on the front of the integrated substrate 130 so as to subsequently form a display surface of the display module, and the photosensitive sensor 120 may be specifically fixed on the back of the integrated substrate 130 and located at the exact center of the back. In order to enable the photosensitive sensor 120 to detect the light intensity at the front of the integrated substrate 130, a light-guiding through hole 131 is also provided at the exact center of the integrated substrate 130, and the photosensitive surface of the photosensitive sensor 120 faces the light-guiding through hole 131. In order to allow the light at the front of the integrated substrate 130 to be uniformly guided to the photosensitive surface of the photosensitive sensor 120, some light-guiding structures, such as light-guiding columns, may be provided in the light-guiding through hole 131.

[0028] At this time, when performing photosensitive touch interaction on the above-mentioned display module, it is necessary to first monitor the real-time output signals of each photosensitive sensor of the display module. The specific process is as follows: detect whether there is a photosensitive sensor with a sudden change in output signal, and when there is a photosensitive sensor with a sudden change in output signal, obtain the position and number of the photosensitive sensors with the sudden change in output signal.

[0029] Generally speaking, in the absence of obvious sudden changes in external ambient light, the output of the photosensitive sensor 120 fluctuates in a limited frequency band. This is because the signals received by the photosensitive sensor 120 are mostly weak signal streams, including internal light leakage from the integrated module 100, external ambient light, and reflections from objects at a certain distance in front of the screen. This type of light is characterized by diffuse reflection, and the light is highly disordered. Only a small part of the light source will enter the photosensitive sensor and cause the signal output of the photosensitive sensor 120. As a result, the fluctuations caused by this type of light will fall into a stable frequency band in the long run, that is, the output signal of the photosensitive sensor 120 will stably change within this frequency band, which is the background noise. For the display module of this application, in order to distinguish between touch signals and interference signals, it is necessary to rely on the signal change characteristics of each photosensitive sensor 120. For the touch signal, the change characteristics it brings are significantly different from other factors, which can be specifically reflected in that the dynamic change amplitude of the touch signal is more rapid than other changes, that is, the light sensor 120 will have a sudden change point in the length of time, after which the output signal of the light sensor 120 (specifically, the output voltage value) will significantly increase, which means that the touch signal appears, or significantly decrease, which means that the touch signal disappears. Based on this feature, the display module can determine that the change comes from the touch signal.

[0030] To this end, the specific process of detecting whether there is a sudden change in the output signal of the photosensitive sensor can be as follows: if the output signal of any photosensitive sensor changes, the signal change value of the corresponding photosensitive sensor is detected, and when the signal change value is greater than the first preset threshold, it is determined that the corresponding photosensitive sensor currently has a sudden change in the output signal. Taking the output signal of the photosensitive sensor 120 as a voltage value as an example, if the voltage value output by the photosensitive sensor 120 suddenly increases, and the increase is greater than the first preset threshold (the first preset threshold can be reasonably adjusted and set according to the actual detection accuracy requirements), it can be determined that the corresponding photosensitive sensor 120 currently has a sudden change in the output signal. The number, position and corresponding output signal value of these photosensitive sensors 120 that are judged to have sudden changes in the output signal can be used as a basis for subsequent determination of whether touch interaction currently occurs in the display module and for corresponding touch interaction positioning.

[0031] Step S120: judging whether touch interaction currently occurs in the display module and performing corresponding touch interaction positioning according to the output signals of each photosensitive sensor.

[0032] Specifically, generally speaking, in addition to touch signals, the sudden change in the output signal of the light sensor 120 may also be caused by direct light. Direct light is usually caused by spotlights, direct sunlight, etc. shining on the screen, and there will be no significant change within a few frames. Therefore, it can be distinguished by judging whether such a sudden change occurs on multiple integrated modules. Figure 3 As shown, the process of executing the step of "determining whether touch interaction occurs on the display module and performing corresponding touch interaction positioning according to the output signals of each photosensitive sensor" of this method is as follows:

[0033] Step S121: If there is no photosensor with a sudden output signal change or the number of photosensors with a sudden output signal change is greater than a second preset threshold, it is determined that no touch interaction occurs in the display module.

[0034] Step S122: If the number of the photosensors with sudden output signal changes is only one, it is determined that a touch interaction in the form of point touch occurs in the display module, and a preset point touch interaction positioning method is executed to perform corresponding touch interaction positioning.

[0035] Step S123: If the number of photosensors with sudden output signal changes is greater than one but less than a second preset threshold, it is determined that a touch interaction in the form of surface touch occurs on the display module, and a preset surface touch interaction positioning method is executed to perform corresponding touch interaction positioning.

[0036] Regarding the situation mentioned in the above method steps that "when the number of photosensors with sudden changes in output signals is greater than the second preset threshold, it is also determined that no touch interaction currently occurs on the display module", it is mainly used to exclude the situation where the output signal of the photosensor 120 suddenly changes due to direct light. Direct light is usually caused by spotlights, direct sunlight, etc. shining on the screen, which generally shines on a large area of ​​the screen, causing the output signals of multiple photosensors 120 to suddenly change. Therefore, it can be determined whether the output signal of the photosensor 120 suddenly changes due to direct light by detecting whether the number of photosensors with sudden changes in output signals is greater than the second preset threshold (the second preset threshold can be reasonably adjusted and set according to the actual detection accuracy requirements).

[0037] In addition, since the touch interaction mode can be very rich. Specifically, you can click the screen with a stylus with a reflective surface to generate reflection at the click position to achieve touch positioning. You can also directly slide your finger, and the light will reflect on the finger to achieve touch positioning. When facing a distant touch, you can also use laser irradiation to make the light in the irradiated area increase sharply, thereby achieving touch positioning. The above-mentioned touch interaction modes can be roughly divided into two touch interaction types according to the number of photosensitive sensors they affect. One is the touch interaction type in the form of point touch, such as the above-mentioned touch pen clicking the screen and laser irradiation. The contact area is small and only affects the output signal of one photosensitive sensor 120. Therefore, when it is detected that the number of photosensitive sensors with a sudden change in output signal is only one, it can be judged that the display module is currently experiencing a touch interaction in the form of point touch. At the same time, its contact area is small, and the possible contact position is only one of the pixel points 110 of the integrated module 100. Therefore, it needs to be further accurately positioned, that is, the preset point touch interaction positioning method is executed to perform the corresponding touch interaction positioning. The other is a touch interaction type in the form of surface touch, such as the above-mentioned touch form of finger sliding, which has a larger contact area and will affect the output signals of more than one photosensitive sensor 120, but is different from the above-mentioned influence of direct light. Therefore, when it is detected that the number of photosensitive sensors whose output signals are suddenly changing is greater than one but less than the second preset threshold, it can be judged that the display module is currently experiencing a touch interaction in the form of surface touch. At the same time, its contact area is large, and touch positioning is usually performed across multiple integrated modules 100, which means that touch positioning within a single integrated module 100 is meaningless to the display module. Only through the position and output signal strength of each photosensitive sensor 120 whose output signal is suddenly changing, the contour of the touch surface is calculated (the corresponding touch surface contour can be obtained in conjunction with a de-aliasing algorithm), the touch point coordinates can be judged according to the contour of the touch surface, thereby achieving a smoother touch interaction in the form of surface touch. Therefore, when it is determined that the display module is currently experiencing a touch interaction in the form of a surface touch, the preset surface touch interaction positioning method is executed (the specific process is as follows: based on the position and output signal strength of each photosensitive sensor where a sudden change in output signal currently occurs, the contour of the touch surface is calculated, and the touch point coordinates are determined based on the contour of the touch surface) to perform corresponding touch interaction positioning.

[0038] The photosensitive touch interaction method provided in the embodiment of the present application is applied to a display module including multiple integrated modules, each integrated module is correspondingly provided with a number of pixels and a photosensitive sensor, so that each integrated module can be used as a minimum resolution unit of the display module to realize the following photosensitive touch interaction process: first, the output signals of each photosensitive sensor of the display module are monitored in real time. Then, according to the output signals of each photosensitive sensor, it is determined whether the display module is currently experiencing touch interaction and the corresponding touch interaction positioning is performed. Its working principle is specifically to use the light emitted by the pixels on the integrated module as the detection light source, so that when the touch object approaches a certain integrated module, the light emitted by the pixels of the corresponding integrated module will irradiate the surface of the touch object to form corresponding reflected light. At the same time, after the photosensitive sensor of the corresponding integrated module detects these reflected light through the light-guiding through hole, it can generate an electrical signal based on the light intensity of these reflected light to determine the position of the touch object, thereby realizing the real-time touch interaction of the display module. It can be seen that the present application realizes the touch interaction of the display screen module through an integrated packaging structure, which can effectively simplify the system structure of the display module without affecting the display effect of the display screen and without the disadvantage of touch delay.

[0039] In some examples, such as Figure 4 As shown, the preset touch interaction positioning method mentioned above may specifically include the following steps:

[0040] Step S11: sequentially light up each pixel point on the integrated module where the photosensor with the sudden change in output signal is located, so as to obtain the light intensity signal output by the corresponding photosensor when each pixel point is lit up.

[0041] Specifically, when the touch contour of the touch moves to the integrated module 100, the main task of touch interaction positioning is to determine which pixel point 110 on the integrated module 100 the contour is closer to, so as to determine the coordinates of the pixel point 110 as the touch point coordinates. At this time, we can first light up each pixel point 110 on the integrated module 100 where the photosensitive sensor 120 with the sudden change in output signal is located in turn, so as to obtain the light intensity signal output by the corresponding photosensitive sensor 120 when each pixel point 110 is lit, that is, when each pixel point 110 on the integrated module 100 is lit separately, the light intensity signal output by the corresponding photosensitive sensor 120 is recorded once.

[0042] Step S12: comparing and sorting the light intensity signals corresponding to each pixel when it is lit, and determining the coordinates of the pixel with the strongest light intensity signal when the pixel is lit as the touch point coordinates.

[0043] Specifically, after the above-mentioned method step of "recording the light intensity signal output by the corresponding photosensor 120 when each pixel point 110 is lit individually", the light intensity signals corresponding to each pixel point when it is lit can be compared and sorted, and the coordinates of the pixel point with the strongest light intensity signal when the pixel point is lit are determined as the touch point coordinates. This is because the light intensity signal output by the corresponding photosensor 120 should be the strongest when the touch outline of the touch is closest to the pixel point 110 when it is lit individually.

[0044] In some examples, such as Figure 5 As shown, the above-mentioned preset touch interaction positioning method may also specifically include the following steps:

[0045] Step S21: Select four pixel points located at the four outer corners of the integrated module where the photosensor with the sudden change in output signal is located.

[0046] Specifically, when the touch contour of the touch moves to the integrated module 100, the main task of the touch interaction positioning is to determine which pixel point 110 on the integrated module 100 the contour is closer to, so as to determine the coordinates of the pixel point 110 as the touch point coordinates. At this time, taking the number of the plurality of pixel points 110 on the integrated module 100 as 16 as an example, it can form a 4X4 matrix distribution. During the touch interaction positioning, the four pixel points located at the four outer corners of the integrated module 100 where the photosensitive sensor 120 with a sudden change in output signal is located are selected, that is, the four pixel points of the upper left corner, upper right corner, lower left corner and lower right corner on the 4X4 matrix distribution are selected.

[0047] Step S22: Light up four pixels in a time-sharing manner to obtain a light intensity signal output by the corresponding photosensor when each pixel is lit.

[0048] Specifically, after selecting the four pixels of the upper left corner, the upper right corner, the lower left corner and the lower right corner on the 4X4 matrix distribution through the above method steps, the four pixels can be lit up in time to obtain the light intensity signal output by the corresponding photosensitive sensor when each pixel is lit up. That is, when the upper left corner pixel 110, the upper right corner pixel 110, the lower left corner pixel 110 and the lower right corner pixel 110 on the integrated module 100 are lit up separately, the light intensity signal output by the corresponding photosensitive sensor 120 is recorded once respectively, and a total of four light intensity signals corresponding to the four pixels being lit up are obtained.

[0049] Step S23: solving the point deviation according to the light intensity signals corresponding to the four pixel points being lit up in a time-sharing manner, and calculating the corresponding touch point coordinates.

[0050] Specifically, after obtaining the four light intensity signals corresponding to the four pixel points when they are lit up respectively through the above method steps, the point deviation can be solved according to the light intensity signals corresponding to the four pixel points when they are lit up in time-sharing manner, and the corresponding touch point coordinates can be calculated. Specifically, the difference between the first light intensity signal and the fourth light intensity signal, and the difference between the second light intensity signal and the third light intensity signal can be calculated respectively, and then the distance relationship between the real touch point and the four pixel points can be judged based on these two differences (the judgment basis is that the closer the real touch point is to a pixel point 110, the stronger the light intensity signal output by the corresponding photosensitive sensor 120 when it is lit up alone), so as to calculate the corresponding touch point coordinates.

[0051] In some examples, such as Figure 6 As shown, the above-mentioned preset touch interaction positioning method may also specifically include the following steps:

[0052] Step S31: performing a refresh operation of a preset pattern on the integrated module where the photosensor having a sudden change in output signal is located, and obtaining a light intensity signal output by the corresponding photosensor when the preset pattern is refreshed.

[0053] Specifically, when the touch contour of the touch moves to the integrated module 100, the main task of the touch interaction positioning is to determine which pixel point 110 on the integrated module 100 the contour is closer to, so as to determine the coordinates of the pixel point 110 as the touch point coordinates. At this time, we can first establish a preset database, and the establishment process is as follows: perform a refresh operation of the preset pattern on each integrated module 100, and when the current integrated module 100 performs a refresh operation, record the light intensity signal output by the corresponding photosensor when the touch point is at each pixel point to establish a preset database. That is, when several pixel points 110 of the integrated module 100 display a preset pattern, touch each pixel point 110 in turn, and record the light intensity signal output by the corresponding photosensor, so as to form a one-to-one correspondence between the pixel point 110 (specifically, the coordinates of the corresponding pixel point 110) and the light intensity signal (specifically, the magnitude value of the light intensity signal) in the preset database. In this way, when executing the preset touch interactive positioning method, the preset pattern can be refreshed on the integrated module where the photosensor with the sudden change in output signal is located, and the light intensity signal output by the corresponding photosensor when the preset pattern is refreshed can be obtained. The preset pattern is the same as the preset pattern for establishing the preset database.

[0054] Step S32: Compare and obtain the coordinates of the pixel points corresponding to the light intensity signal in a preset database to determine them as the touch point coordinates.

[0055] Specifically, based on the above description, it can be known that after the light intensity signal output by the corresponding photosensor when the preset pattern is refreshed is obtained through the above method steps, the coordinates of the pixel points corresponding to the light intensity signal can be compared in the preset database to determine the touch point coordinates.

[0056] In some examples, such as Figure 7 As shown, the above-mentioned preset touch interaction positioning method may also specifically include the following steps:

[0057] Step S41: Time-sharingly lighting up each pixel point on the integrated module where the photosensor with the sudden change in output signal is located, to determine whether the light intensity signal output by the corresponding photosensor when each pixel point is lit is greater than a third preset threshold.

[0058] Specifically, when the touch contour of the touch moves to the integrated module 100, the main task of the touch interactive positioning is to determine which pixel point 110 on the integrated module 100 the contour is closer to, so as to determine the coordinates of the pixel point 110 as the touch point coordinates. At this time, we can first set a third preset threshold. When a certain pixel point 110 is lit up alone, the light intensity signal of the corresponding photosensitive sensor 120 exceeds the third preset threshold, then it is judged that there is a touch signal, and the coordinates of the pixel point 110 are the touch point coordinates. Therefore, the size of the third preset threshold can be set based on the size value of the light intensity signal output by the corresponding photosensitive sensor when the pixel point where the touch point is located is lit up alone. In this way, when executing the preset touch interactive positioning method, each pixel point on the integrated module where the photosensitive sensor with a sudden change in output signal is located can be illuminated in a time-sharing manner to determine whether the light intensity signal output by the corresponding photosensitive sensor when each pixel point is lit is greater than the third preset threshold.

[0059] Step S42: determining the coordinates of the pixel point whose light intensity signal output by the corresponding light sensor when the pixel point is lit is greater than the third preset threshold as the touch point coordinates.

[0060] Specifically, based on the above description, it can be known that when a certain pixel point 110 is lit up alone, when the light intensity signal of the corresponding light sensor 120 exceeds the third preset threshold, it is determined that there is a touch signal, and the coordinates of the pixel point 110 are the touch point coordinates. Therefore, the coordinates of the pixel point 110 whose light intensity signal output by the corresponding light sensor when the pixel point 110 is lit is greater than the third preset threshold can be determined as the touch point coordinates.

[0061] The preset touch interaction positioning methods in the above examples can all achieve further precise positioning within the integrated module 110 to perform corresponding touch interaction positioning. Those skilled in the art can choose to use any one of them when performing touch interaction positioning on the display module of the embodiment of the present application.

[0062] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present application, and still fall within the scope of protection of the present application.

Claims

1. A light-sensitive touch interaction method, characterized in that: Applied to a display module including a plurality of integrated modules, each of the integrated modules is correspondingly provided with a plurality of pixel points and a photosensitive sensor, and the photosensitive touch interaction method comprises the following steps: Performing real-time output signal monitoring on each photosensitive sensor of the display module; According to the output signals of each of the light-sensitive sensors, determining whether the display module currently has touch interaction and performing corresponding touch interaction positioning; The step of monitoring the output signals of the photosensors of the display module in real time specifically includes: detecting whether there is a photosensor with a sudden change in output signal, and when there is a photosensor with a sudden change in output signal, obtaining the position and number of the photosensors with the sudden change in output signal; The step of judging whether touch interaction occurs in the display module and performing corresponding touch interaction positioning according to the output signals of each of the photosensitive sensors specifically includes: if there is no photosensitive sensor with a sudden change in output signal at present or the number of photosensitive sensors with a sudden change in output signal is greater than a second preset threshold, judging that no touch interaction occurs in the display module at present; if the number of photosensitive sensors with a sudden change in output signal at present is only one, judging that touch interaction in the form of point touch occurs in the display module at present, and executing a preset point touch interaction positioning method to perform corresponding touch interaction positioning; if the number of photosensitive sensors with a sudden change in output signal at present is greater than one but less than the second preset threshold, judging that touch interaction in the form of surface touch occurs in the display module at present, and executing a preset surface touch interaction positioning method to perform corresponding touch interaction positioning; The preset touch interaction positioning method includes the following steps: lighting up each pixel point on the integrated module where the photosensor with a sudden change in output signal is located in turn, so as to obtain the light intensity signal output by the corresponding photosensor when each pixel point is lit; comparing and sorting the light intensity signals corresponding to each pixel point when it is lit, and determining the coordinates of the pixel point with the strongest light intensity signal when the pixel point is lit as the touch point coordinates.

2. A light-sensitive touch interaction method, characterized in that: Applied to a display module including a plurality of integrated modules, each of the integrated modules is correspondingly provided with a plurality of pixel points and a photosensitive sensor, and the photosensitive touch interaction method comprises the following steps: Performing real-time output signal monitoring on each photosensitive sensor of the display module; According to the output signals of each of the light-sensitive sensors, determining whether the display module currently has touch interaction and performing corresponding touch interaction positioning; The step of monitoring the output signals of the photosensors of the display module in real time specifically includes: detecting whether there is a photosensor with a sudden change in output signal, and when there is a photosensor with a sudden change in output signal, obtaining the position and number of the photosensors with the sudden change in output signal; The step of judging whether touch interaction occurs in the display module and performing corresponding touch interaction positioning according to the output signals of each of the photosensitive sensors specifically includes: if there is no photosensitive sensor with a sudden change in output signal at present or the number of photosensitive sensors with a sudden change in output signal is greater than a second preset threshold, judging that no touch interaction occurs in the display module at present; if the number of photosensitive sensors with a sudden change in output signal at present is only one, judging that touch interaction in the form of point touch occurs in the display module at present, and executing a preset point touch interaction positioning method to perform corresponding touch interaction positioning; if the number of photosensitive sensors with a sudden change in output signal at present is greater than one but less than the second preset threshold, judging that touch interaction in the form of surface touch occurs in the display module at present, and executing a preset surface touch interaction positioning method to perform corresponding touch interaction positioning; The preset touch interaction positioning method includes the following steps: selecting the four pixel points located at the four outer corners of the integrated module where the photosensor with a sudden change in output signal is located; lighting up the four pixel points in time-sharing manner to obtain the light intensity signal output by the corresponding photosensor when each pixel point is lit; solving the point deviation according to the light intensity signal corresponding to the four pixel points when they are lit in time-sharing manner, and calculating the corresponding touch point coordinates.

3. A light-sensitive touch interaction method, characterized in that: Applied to a display module including a plurality of integrated modules, each of the integrated modules is correspondingly provided with a plurality of pixel points and a photosensitive sensor, and the photosensitive touch interaction method comprises the following steps: Performing real-time output signal monitoring on each photosensitive sensor of the display module; According to the output signals of each of the light-sensitive sensors, determining whether the display module currently has touch interaction and performing corresponding touch interaction positioning; The step of monitoring the output signals of the photosensors of the display module in real time specifically includes: detecting whether there is a photosensor with a sudden change in output signal, and when there is a photosensor with a sudden change in output signal, obtaining the position and number of the photosensors with the sudden change in output signal; The step of judging whether touch interaction occurs in the display module and performing corresponding touch interaction positioning according to the output signals of each of the photosensitive sensors specifically includes: if there is no photosensitive sensor with a sudden change in output signal at present or the number of photosensitive sensors with a sudden change in output signal is greater than a second preset threshold, judging that no touch interaction occurs in the display module at present; if the number of photosensitive sensors with a sudden change in output signal at present is only one, judging that touch interaction in the form of point touch occurs in the display module at present, and executing a preset point touch interaction positioning method to perform corresponding touch interaction positioning; if the number of photosensitive sensors with a sudden change in output signal at present is greater than one but less than the second preset threshold, judging that touch interaction in the form of surface touch occurs in the display module at present, and executing a preset surface touch interaction positioning method to perform corresponding touch interaction positioning; The preset touch interaction positioning method comprises the following steps: performing a preset pattern refresh operation on the integrated module where the light-sensitive sensor with the sudden change in output signal is located, and obtaining the light intensity signal output by the corresponding light-sensitive sensor when the preset pattern is refreshed; comparing the coordinates of the pixel point corresponding to the light intensity signal in a preset database to determine as the touch point coordinates; The method for establishing the preset database includes the following steps: performing a refresh operation of a preset pattern on each of the integrated modules, and when the current integrated module is performing a refresh operation, recording the light intensity signal output by the corresponding photosensor when the touch point is at each pixel point to establish the preset database.

4. A light-sensitive touch interaction method, characterized in that: Applied to a display module including a plurality of integrated modules, each of the integrated modules is correspondingly provided with a plurality of pixel points and a photosensitive sensor, and the photosensitive touch interaction method comprises the following steps: Performing real-time output signal monitoring on each photosensitive sensor of the display module; According to the output signals of each of the light-sensitive sensors, determining whether the display module currently has touch interaction and performing corresponding touch interaction positioning; The step of monitoring the output signals of the photosensors of the display module in real time specifically includes: detecting whether there is a photosensor with a sudden change in output signal, and when there is a photosensor with a sudden change in output signal, obtaining the position and number of the photosensors with the sudden change in output signal; The step of judging whether touch interaction occurs in the display module and performing corresponding touch interaction positioning according to the output signals of each of the photosensitive sensors specifically includes: if there is no photosensitive sensor with a sudden change in output signal at present or the number of photosensitive sensors with a sudden change in output signal is greater than a second preset threshold, judging that no touch interaction occurs in the display module at present; if the number of photosensitive sensors with a sudden change in output signal at present is only one, judging that touch interaction in the form of point touch occurs in the display module at present, and executing a preset point touch interaction positioning method to perform corresponding touch interaction positioning; if the number of photosensitive sensors with a sudden change in output signal at present is greater than one but less than the second preset threshold, judging that touch interaction in the form of surface touch occurs in the display module at present, and executing a preset surface touch interaction positioning method to perform corresponding touch interaction positioning; The preset touch interaction positioning method includes the following steps: lighting up each pixel point on the integrated module where the photosensor with a sudden change in output signal is located in a time-sharing manner to determine whether the light intensity signal output by the corresponding photosensor when each pixel point is lit is greater than a third preset threshold; and determining the coordinates of the pixel point whose corresponding light intensity signal output by the photosensor when the pixel point is lit is greater than the preset threshold as the touch point coordinates.

5. The light-sensitive touch interaction method according to any one of claims 1 to 4, characterized in that: The step of detecting whether a sudden change in the output signal of the photosensitive sensor currently occurs specifically includes: If the output signal of any of the photosensors changes, the signal change value of the corresponding photosensor is detected, and when the signal change value is greater than a first preset threshold, it is determined that the output signal of the corresponding photosensor currently undergoes a sudden change.

6. The light-sensitive touch interaction method according to any one of claims 1 to 4, characterized in that: The preset surface touch interaction positioning method comprises the following steps: The contour of the touch surface is calculated based on the position and output signal strength of each photosensitive sensor that currently has a sudden change in output signal, and the coordinates of the touch point are determined based on the contour of the touch surface.

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