CN111782077B - Touch position determining method, touch device and electronic equipment - Google Patents

Abstract

The present application discloses a method for determining a touch position, which is used for determining a touch position of an external object on an effective touch area of a touch device. The effective touch area includes a plurality of sub-touch areas, at least one of which has an irregular shape. The method for determining the touch position includes the steps of: acquiring the touch sensing signal generated by the touch operation at the current moment; determining the sub-touch area that generates the peak touch sensing signal and the sub-touch area adjacent to it as the sub-touch area to be tested Touch the area, and obtain the positioning coordinate value corresponding to each sub-touch area to be tested; calculate the current moment according to the positioning coordinate value of each sub-touch area to be measured and its corresponding touch sensing signal The touch coordinate value of the actual touch position of the external object. The application also discloses a touch device and electronic equipment.

Description

Method for determining touch position, touch device and electronic equipment

technical field

The present application relates to the field of touch technology, in particular to a method for confirming a touch position, a touch device and electronic equipment.

Background technique

The display area of traditional electronic products is usually in a regular shape, such as a rectangle, and the multiple touch sensors arranged in the display area generally have the same regular shape. Therefore, the coordinates of the touch sensor and the coordinates of the display pixels have the same corresponding relationship, and when sensing the touch position, the signal quantities of multiple touch sensors caused by the touch action are substituted into the above corresponding relationship to obtain The coordinate value of the actual touch position in the pixel coordinate system is displayed, and then the actual touch position is determined. However, with the prevalence of the full-screen trend, the display area of electronic products has become more and more irregular. The position where the sensor under the screen is located needs to leave a gap, etc. Correspondingly, the shapes of the touch sensors arranged at these positions will also become irregular, so if the touch position is still determined according to the above-mentioned corresponding relationship, obvious errors will occur, resulting in inaccurate sensed touch positions.

Contents of the invention

In view of this, the present application provides a method for determining a touch position, a touch device, and an electronic device that can improve the problems in the prior art.

One aspect of the present application provides a touch position determination method for determining a touch position of an external object on an effective touch area of a touch device. The effective touch area includes a plurality of sub-touch areas, at least one of which has an irregular shape. The method for determining the touch position includes the steps of:

Obtain the touch sensing signal generated by the touch operation at the current moment;

Determining the sub-touch area that generates the peak touch sensing signal and its adjacent sub-touch area as the sub-touch area to be tested, and acquiring the positioning coordinate values corresponding to each of the sub-touch areas to be tested;

According to the positioning coordinate value of each sub-touch area to be measured and its corresponding touch sensing signal, the touch coordinate value of the actual touch position of the external object at the current moment is calculated.

In some embodiments, the first imaging module includes:

A rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to represent that the sub-touch area is in The position within the effective touch area, a predetermined number of reference points are set along the edge of the sub-touch area, each reference point has a predetermined coordinate value in the positioning coordinate system, and the positioning coordinates of the sub-touch area The abscissa value of the abscissa value is the average value of the abscissa values of the above-mentioned multiple reference points, and the ordinate value of the positioning coordinates of the sub-touch area is the average value of the ordinate values of the above-mentioned multiple reference points.

In some embodiments, the reference points are arranged at equal intervals along the edge of the sub-touch area; or the reference points are arranged at unequal intervals along the edge of the sub-touch area.

In some embodiments, relatively dense reference points are set on the irregular-shaped edge section of the sub-touch area, and relatively sparse reference points are set on the regular-shaped edge section of the sub-touch area. point.

In some embodiments, a rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to Represents the position of the sub-touch area within the effective touch area, and the positioning coordinate value of the sub-touch area adopts the barycenter coordinate value of the sub-touch area.

In some embodiments, the touch coordinate value is calculated by performing a weighted average on the positioning coordinate values of a plurality of sub-touch areas to be measured acquired at each touch position, wherein the weighted average value is is the touch sensing signal value corresponding to each sub-touch area to be tested.

One aspect of the present application provides a touch device, including:

Protective layers, including upper surfaces that are in direct contact with external objects;

The touch sensing layer includes a plurality of touch sensors, and the area on the upper surface of the protective layer within the touch sensing range of each touch sensor is defined as the sub-touch area corresponding to the touch sensor. The combination of multiple sub-touch areas corresponding to the touch sensors is defined as the effective touch area of the touch device. When the external object touches the effective touch area, the touch sensor located near the touch position generates touch sensing signals associated with external objects; and

The touch processing module is connected with the touch sensing layer, and is used to obtain the touch sensing signal at the current moment, and determine the sub-touch area that generates the peak touch sensing signal and the sub-touch area adjacent to it It is the sub-touch area to be tested, and the positioning coordinate value corresponding to each sub-touch area to be tested is obtained, and according to the positioning coordinate value of each sub-touch area to be tested and its corresponding touch sensing signal , to calculate the touch coordinate value of the actual touch position of the external object at the current moment.

In some embodiments, a rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to Representing the position of the sub-touch area in the effective touch area, setting a predetermined number of reference points along the edge of the sub-touch area, each reference point has a predetermined coordinate value in the positioning coordinate system, the The abscissa value of the positioning coordinates of the sub-touch area is the average value of the abscissa values of the above-mentioned multiple reference points, and the ordinate value of the positioning coordinates of the sub-touch area is the average value of the ordinate values of the above-mentioned multiple reference points value.

In some embodiments, a rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to Represents the position of the sub-touch area within the effective touch area, and the positioning coordinate value of the sub-touch area adopts the barycenter coordinate value of the sub-touch area.

In some embodiments, the touch processing module calculates the touch coordinate value by weighting and averaging the positioning coordinate values of multiple sub-touch areas to be measured acquired at each touch position, wherein the The weight of the weighted average is the touch sensing signal value corresponding to each sub-touch area to be tested.

In some embodiments, the touch sensor is a touch electrode for capacitive sensing, wherein at least one sub-touch area and its corresponding touch electrode have an irregular shape.

One aspect of the present application provides an electronic device, including the under-display optical detection system provided in the above embodiments.

The beneficial effect of the present application is that the touch position determining method, the touch device and the electronic equipment of the present application calculate the external The touch coordinate value where the object is actually touched. The positioning coordinates of the sub-touch area to be tested in the above calculation process are determined by the coordinates of the center of gravity of the sub-touch area to be tested 180, or by coordinates of multiple reference points set along the edge of the sub-touch area to be tested. Fully reflect the influence brought by the irregular shape of the sub-touch area to be tested. Therefore, the method for determining a touch position provided by the present application is especially applicable to a special-shaped display screen with an irregular shape and an electronic device with the special-shaped display screen, which can effectively improve its touch accuracy.

Description of drawings

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

Fig. 2 is a front top view schematic diagram of the electronic device described in Fig. 1;

Fig. 3 is a schematic diagram of a method for determining positioning coordinate values of the irregularly shaped sub-touch area in Fig. 2;

FIG. 4 is a flow chart of steps of a method for determining a touch position provided in an embodiment of the present application;

Fig. 5 is a schematic diagram of the position of the sub-touch area to be tested in step S2 and step S3 in Fig. 4;

specific embodiment

In the specific description of the embodiments of the present application, it should be understood that when a substrate, sheet, layer or pattern is referred to as being "on" or "under" another substrate, another sheet, another layer or another pattern, it It may be "directly" or "indirectly" on another substrate, another sheet, another layer or another pattern, or one or more intervening layers may also be present. For the purpose of clarity, the thickness and size of each layer in the drawings of the specification may be exaggerated, omitted, or schematically represented. Also, the size of elements in the drawings does not utterly reflect an actual size.

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are examples only and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or reference letters in various instances, such repetition is for the purposes of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Furthermore, the described features and structures may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the application. However, those skilled in the art should appreciate that the technical solutions of the present application can also be practiced without one or more of the specific details, or with other structures, components, and the like. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring the application.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an embodiment of an electronic device 1 of the present application. The electronic device 1 includes a touch device 10 for sensing the position of a touch operation on the electronic device 1 . The touch device 10 includes a protective layer 12 , a touch sensing layer 14 and a touch processing module 16 electrically connected to the touch sensing layer 14 . Wherein, the touch sensing layer 14 includes a plurality of touch sensors 140 . When performing touch sensing, an external object (such as a user's finger) performs a touch operation on the upper surface 120 of the protective layer 12 away from the touch-sensing layer 14, and the touch sensor 140 located near the touch position generates a signal related to the external object. Touch sensing signal. The touch processing module 16 is used to calculate the actual touch position of the external object according to the acquired position information of each touch sensor 140 and the corresponding touch sensing signal of each touch sensor 140 .

Optionally, in some embodiments, the protective layer 12 may include a transparent material, such as but not limited to transparent glass, transparent polymer, or any other transparent material. The protective layer 12 can be a single-layer structure or a multi-layer structure. The protective layer 12 is roughly a thin plate with predetermined length, width and thickness. It can be understood that the protective layer 12 may include a plastic film, a tempered film, or other film layers attached by the user during actual use. The upper surface 120 of the protective layer 12 may be the outermost surface of the electronic device 1 . When performing touch sensing, the external object directly contacts the outer surface 120 of the protective layer 12 to perform a touch operation.

Optionally, the touch sensor 140 can be a variety of sensors using different touch principles, such as but not limited to: sensors based on ultrasonic touch sensing principles, sensors based on capacitive sensing principles, and sensors based on optical sensing principles. Principle sensors and so on. In this embodiment, the touch sensor 140 adopts a capacitive touch sensing principle as an example for illustration.

The electronic device 1 is, for example, but not limited to suitable types of electronic products such as consumer electronic products, household electronic products, vehicle-mounted electronic products, and financial terminal products. Among them, consumer electronic products are, for example, mobile phones, tablet computers, notebook computers, desktop monitors, all-in-one computers, and the like. Household electronic products are, for example, rice cookers, televisions, refrigerators, and the like. Vehicle-mounted electronic products are, for example, vehicle-mounted navigators, vehicle-mounted touch-control interactive devices, and the like. Financial terminal products are, for example, ATM machines, terminals for self-service business, and the like.

Please refer to FIG. 1 and FIG. 2 together. FIG. 2 is a schematic front top view of the electronic device 1 in FIG. 1 . An effective touch area 18 is defined on the electronic device 1 , and the effective touch area 18 is all areas on the electronic device 1 that can sense the touch operation of the external object. Each of the touch sensors 140 has a corresponding touch sensing range, and the area where the upper surface 120 of the protective layer 12 is located within the touch sensing range of the touch sensor 140 is defined as the area corresponding to the touch sensor 140. sub-touch area 180. The effective touch area 18 is defined as a combination of a plurality of sub-touch areas 180 respectively corresponding to the plurality of touch sensors 140 . Optionally, in this embodiment, the touch device 10 adopts a capacitive touch sensing principle, and the touch sensor 140 is a touch electrode for capacitive sensing. The touch sensing layer 14 includes a plurality of touch electrodes 140 arranged in an array, each of the touch electrodes 140 forms a corresponding sub-touch area in the area directly opposite to the upper surface 120 of the protective layer 12 180 , the sub-touch area 180 has the same shape as the corresponding touch electrode 140 .

As the user's demand for a full screen continues to increase, the effective touch area 18 of the electronic device 1 needs to be extended as much as possible on the front of the electronic device 1, for example: the effective touch area 18 is extended to a position close to the edge of the electronic device 1 Or the position where the sensor is set on the front of the electronic device 1 . Therefore, as shown in FIG. 2 , the sub-touch area 180 located in the middle part of the effective touch area 18 has a regular shape, while some sub-touch areas 180G, 180H near the corners and where the sensor is located Will have an irregular shape. In order to accurately locate the actual touch position of the external object, a plane Cartesian coordinate system is established on the plane where the effective touch area 18 is located as a positioning coordinate system. In this embodiment, the effective touch area 18 is located on the upper surface 120 of the protective layer 12, correspondingly, the origin of the positioning coordinate system is any point on the upper surface 120 of the protective layer 12, and the X axis is Any straight line passing through the origin, the Y-axis is a straight line perpendicular to the X-axis, and each sub-touch area 180 of the effective touch area 18 is preset with a positioning coordinate value in the positioning coordinate system, when calculating the external object In the actual touch position, the location coordinate value of the sub-touch area 180 represents the position of the sub-touch area 180 .

In order to conveniently determine the positioning coordinate value of the sub-touch area 180 , the X-axis and Y-axis of the positioning coordinate system are set in a direction parallel to most edges of the sub-touch area 180 as much as possible. In this embodiment, for example: the front of the electronic device 1 , that is, the upper surface 120 of the protective layer 12 , is roughly in the shape of a rounded rectangle. The sub-touch areas 180 are respectively arranged in an array along the length direction and the width direction of the electronic device 1 . The X-axis of the positioning coordinate system is along the width direction of the electronic device 1 , and the Y-axis is along the length direction of the electronic device 1 .

As shown in FIG. 3 , in this embodiment, a predetermined number of reference points 182 are set along the edge of the sub-touch area 180G, and each reference point 182 has a predetermined coordinate value (x, y), the abscissa value X _L of the positioning coordinates of the sub-touch area 180 is the average value of the abscissa values of the above-mentioned multiple reference points 182, and the ordinate value Y _L of the positioning coordinates of the sub-touch area 180 is the average value of the ordinate values of the above-mentioned multiple reference points 182.

For example: 12 reference points 182 are set on the sub-touch area 180G with an irregular shape in FIG. ,y4), (x5,y5), (x6,y6), (x7,y7), (x8,y8), (x9,y9), (x10,y10), (x11,y11), (x12,y12 ). The abscissa value X _L of the positioning coordinates (x _L , y _L ) of the sub-touch area 180G = (x1+x2+x3+x4+x5+x6+x7+x8+x9+x10+x11+x12)/ 12. The ordinate value Y _L of the positioning coordinates (x _L , y _L ) of the sub-touch area 180G = (y1+y2+y3+y4+y5+y6+y7+y8+y9+y10+y11+y12 )/12.

It can be understood that there is no limitation on the set number of the reference points 182, which can be adjusted according to calculation accuracy. The more the number of reference points 182 is set, the more the calculated positioning coordinates (x _L , y _L ) of the sub-touch area 180 can reflect the irregular shape of the sub-touch area 180. Impact.

Optionally, the reference points 182 may be arranged at equal intervals along the edge of the sub-touch area 180 . Alternatively, the reference points 182 can also be arranged at unequal intervals along the edge of the sub-touch area 180, for example: relatively dense reference points can be set in the irregularly shaped edge section of the sub-touch area 180. Points 182 , and relatively sparse reference points 182 are set on the regular-shaped edge section of the sub-touch area 180 .

Optionally, in some other embodiments, the positioning coordinates (X _L , Y _L ) of the sub-touch area 180 may also adopt the center-of-gravity coordinates (X _G , Y _G ) of the sub-touch area 180 . Since the sub-touch area 180 is the corresponding area of the touch electrode 140 on the upper surface 120 of the protective layer 12, it is not an entity with mass, so when calculating the center of gravity coordinates of the sub-touch area 180, it can be assumed that A thin sheet having the same shape as the sub-touch area 180 with uniform mass distribution, the sheet is superimposed on the sub-touch area 180 with the same shape, and the center of gravity of the sheet is on the sub-touch area 180 The coordinate values of the projected point above in the positioning coordinate system are used as the barycenter coordinates X _G and Y _G of the sub-touch area 180 .

The positioning coordinates X _L and Y _L of each sub-touch area 180 in the effective touch area 18 can be preset according to the above method. The electronic device 1 can also include a storage medium (not shown in the figure), and the preset correspondence between the positioning coordinate values X _L and Y _L of the sub-touch area 180 and the sub-touch area 180 can be stored In the storage medium, the positioning coordinate values X _L and Y _L of the sub-touch area 180 can be quickly obtained when needed. The memory 18 includes, but is not limited to, a flash memory (Flash Memory), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), and a hard disk.

Please refer to FIG. 1 to FIG. 4 , the present application also provides a method for determining a touch position, which can be implemented by the touch device 10 provided in the above embodiment to determine the force exerted by an external object on the electronic device 1 The actual touch position of the touch action. The method for determining a touch position includes the steps of:

Step S1, acquiring a touch sensing signal generated by a touch operation at the current moment.

An initial capacitance C0 is formed between the touch electrode 140 facing the sub-touch area 180 and the ground. When an external object touches the sub-touch area 180 , a sensing capacitance C _S may be generated between the touch electrodes 140 corresponding to the sub-touch area 180 closer to the external object and the external object. By scanning the array of the touch electrodes 140 , the touch sensing signals of the corresponding touch electrodes generated by the touch operation of the external object can be obtained.

The size of the touch electrode 140 is usually much smaller than the contact area between the external object and the effective touch area 18, and the touch operation of the external object will cover a plurality of sub-touch areas 180 in the effective touch area 18, thereby causing corresponding multiple sub-touch areas 180. Each touch electrode 140 generates a touch sensing signal.

Optionally, in some embodiments, the touch operation of the external object will be in contact with different positions of the effective touch area 18 at the same time, thereby causing corresponding multiple The touch electrodes 140 generate touch sensing signals.

Step S2, determining the sub-touch area 180 that generates the peak touch sensing signal and the sub-touch area 180 adjacent to it as the sub-touch area 180 to be tested, and obtaining the corresponding The positioning coordinate value of .

The intensity of the touch sensing signal caused by the touch of the touch electrode 140 is related to the contact area and closeness of the external object with the corresponding sub-touch area 180, so the sub-touch area 180 that generates the peak touch sensing signal should be The position that the external object actually wants to touch the most. However, the area of the sub-touch area 180 or the touch electrodes corresponding to the sub-touch area 180 is still much larger than the size of the pixels displayed on the display screen. If only the positioning coordinate value of the sub-touch area 180 There will be a large error in determining the display pixel corresponding to the actual touch position. Therefore, it is necessary to adjust the positioning coordinates of the sub-touch area 180 that generates the peak touch-sensing signal according to the strength of the touch-sensing signal generated by the adjacent sub-touch area 180 to obtain a more accurate actual touch position.

For example: as shown in FIG. 5 , if the sub-touch area corresponding to the peak value of the touch sensing signal in the obtained touch sensing signal is 180A, then the sub-touch area 180A is determined as the sub-touch area 180A to be tested. A plurality of sub-touch areas 180B- 180I adjacent to the sub-touch area 180A are also determined as sub-touch areas 180 to be tested.

Optionally, in this embodiment, a peak touch sensing signal is generated corresponding to each position where an external object is in contact with the effective touch area 18, and then a touch sensing signal corresponding to the peak touch sensing signal can be determined. sub-touch area 180 .

Optionally, in some other embodiments, two or more touch sensing signals with the same peak value may be generated corresponding to each position where an external object is in contact with the effective touch area 18, and correspondingly, it may be determined that There are two or more sub-touch regions 180 corresponding to the peak touch sensing signal. In this case, the determined sub-touch areas 180 to be tested should include all sub-touch areas 180 surrounding two or more sub-touch areas 180 that generate the peak touch sensing signals.

Optionally, in some embodiments, the external object may respectively touch two or more than two different positions of the effective touch area 18 , and each touch position generates a corresponding peak touch sensing signal. Therefore, corresponding to each touch position, a combination of sub-touch regions to be tested can be determined in the above-mentioned manner, and each combination of sub-touch regions to be tested includes a sub-touch region 180 and a sub-touch region to be tested corresponding to the peak touch sensing signal. a plurality of sub-touch regions 180 adjacent to it to be tested. It can be understood that the values of the peak touch sensing signals generated corresponding to different touch positions may be the same or different.

After the sub-touch area 180 to be tested is determined, the corresponding relationship between the positioning coordinate values X _L and Y _L of the sub-touch area 180 preset in the storage medium and the sub-touch area 180 can be obtained to obtain the Positioning coordinate values X _L and Y _L corresponding to the sub-touch area 180 to be tested. Specifically, for example but not limited to: the corresponding relationship between the positioning coordinate values X _L and Y _L of the sub-touch area 180 and the sub-touch area 180 can be the positioning coordinate value of the sub-touch area 180 X _L and Y _L are index tables numbered with the sub-touch area 180 respectively, and the sub-touch area 180 to be tested determined according to the peak touch sensing signal can obtain the corresponding positioning coordinate values by checking the above index table X _L and Y _L .

Step S3, according to the positioning coordinate values X _L and Y _L of each sub-touch area 180 to be tested and the corresponding touch sensing signal, calculate the actual touch position of the external object at the current moment in the effective touch area The touch coordinate value of 18.

Specifically, the touch coordinate value is calculated by performing a weighted average on the positioning coordinate values X _L and Y _L of the plurality of sub-touch areas 180 to be tested acquired at each touch position. Wherein, the weight of the weighted average is the touch sensing signal value corresponding to each sub-touch area 180 to be measured, and the weighted average includes the weighted average sum of the X coordinate value X _L of the positioning coordinate value. A weighted average is performed on the Y coordinate Y _L of the positioning coordinate values. The touch coordinate value of the actual touch position is (X _P , Y _P ), and the calculation process of the above step S3 is expressed as:

Wherein, k takes an integer greater than or equal to 1, and k is the number of sub-touch areas 180 to be tested;

X _P =X _SUM /D _SUM ; Y _P =X _SUM /D _SUM

As shown in FIG. 5 , for example: the sub-touch area 180 to be tested and its adjacent sub-touch area 180 to be tested, which are determined in step S3 to generate the peak touch sensing signal, obtain the above-mentioned sub-touch area to be tested respectively. The positioning coordinate values of the region 180 are (X _L1 , Y _L1 ), (X _L2 , Y _L2 ), (X _L3 , Y _L3 ), (X _L4 , Y _L4 ), (X _L5 , Y _L5 ), (X _L6 , Y _L6 ), (X _L7 , Y _L7 ), (X _L8 , Y _L8 ), (X _L9 , Y _L9 ). The touch sensing signal values corresponding to the sub-touch areas 180 to be tested are denoted as C _S1 , _CS2 , _CS3 , _CS4 , _CS5 , _CS6 , _CS7 , _CS8 and _CS9 respectively. Substitute the above data into the formula to calculate the touch coordinates (X _P , Y _P ) as:

X _P ＝(X _L1 *C _S1 +X _L2 *C _S2 +X _L3 *C _S3 +X _L4 *C _S4 +X _L5 *C _S5 +X _L6 *C _S6 +X _L7 *C _S7 +X _L8 *C _S8 +X _L9 *C _S9 )/(C _S1 +C _S2 +C _S3 +C _S4 +C _S5 +C _S6 +C _S7 +C _S8 +C _S9 );

Y _P ＝(Y _L1 *C _S1 +Y _L2 *C _S2 +Y _L3 *C _S3 +Y _L4 *C _S4 +Y _L5 *C _S5 +Y _L6 *C _S6 +Y _L7 *C _S7 +Y _L8 *C _S8 +Y _L9 *C _S9 )/(C _S1 +C _S2 +C _S3 +C _S4 +C _S5 +C _S6 +C _S7 +C _S8 +C _S9 );

Optionally, in some embodiments, the touch processing module 16 may be firmware solidified in the storage medium or computer codes stored in the storage medium. The touch processing module 16 is executed by corresponding one or more processors (not shown in the figure) to control related components to implement the steps of the touch position determination method, thereby improving the effective touch area 18 with an irregular shape. The precision with which the actual touch location is determined. The processor is, for example but not limited to, an application processor (Application Processor, AP), a central processing unit (CPU), a microprocessor (MCU), and the like.

Optionally, in some embodiments, the touch processing module 16 may also be hardware capable of implementing related steps of the touch position determination method. For example, the touch processing module 16 can implement the relevant steps of the touch position determination method through any one of the following technologies or their combination: discrete logic with logic gate circuits for implementing logic functions on data signals circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc. It can be understood that the relevant hardware used by the touch processing module 16 to implement the method for determining the touch position can be integrated on the same substrate as the touch sensing layer 14, or can be arranged on the electronic device 1 on the host.

Thus, the touch processing module 16 of the touch device 10 can be used to determine the sub-touch area 180 to be tested and its corresponding positioning coordinate value according to the acquired touch sensing signal, and according to each of the The touch coordinate values of the actual touch position of the external object at the current moment are calculated from the positioning coordinate values X _L and Y _L of the touch area 180 of the probe and the corresponding touch sensing signals. Specifically, the touch processing module 16 can be used to obtain the touch sensing signal generated by the touch operation of the sub-touch area 180 at the current moment, and the sub-touch area 180 that generates the peak touch sensing signal and its Adjacent sub-touch regions 180 are determined as sub-touch regions 180 to be tested, and then the positioning coordinate values corresponding to each sub-touch region 180 to be tested are obtained.

The method for determining the touch position provided in this application combines the touch sensing signal value corresponding to the sub-touch area 180 to be tested and the positioning coordinate values (X _L , Y _L ) of the sub-touch area 180 to calculate the actual touch position of the external object. The touch coordinate value (X _P , Y _P ). The positioning coordinates (X _L , Y _L ) of the sub-touch area 180 to be tested in the above calculation process adopt the coordinates of the center of gravity (X _G , Y _G ) of the sub-touch area 180 to be tested, or by The coordinates of a plurality of reference points 182 set on the edge of the control area 180 are determined, which can fully reflect the influence brought by the irregular shape of the sub-touch area 180 to be tested. Therefore, the method for determining the touch position provided in the present application is especially applicable to irregularly shaped display screens and the electronic device 1 with such a display screen, which can effectively improve the touch accuracy thereof.

It should be noted that those skilled in the art can understand that part or all of the embodiments of the present application, as well as part or all of the embodiments of the embodiment of the deformation, replacement, change, split, combination, Expansion, etc. should be considered to be covered by the invention and creation idea of the application, and belong to the protection scope of the application.

Any reference in this specification to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. The appearances of such phrases in various places in this specification are not necessarily all referring to the same embodiment. In addition, when a particular feature or structure is described in connection with any embodiment, it is claimed that it is within the skill of those skilled in the art to implement such feature or structure in combination with other embodiments of those embodiments.

"Length", "width", "top", "bottom", "left", "right", "front", "back", "back", "front", "vertical" that may appear in the specification of this application ", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and The description is simplified, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus should not be construed as limiting the application. Similar numbers and letters denote similar items in the drawings, so once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. In the description of the present application, "multiple" or "plurality" means at least two or two, unless otherwise specifically defined. In the description of this application, it should also be noted that unless otherwise specified and limited, "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; may be mechanically connected, may also be electrically connected; may be directly connected, may also be indirectly connected through an intermediary, and may be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

The above is only a specific embodiment of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. The terms used in the claims should not be construed to limit the invention to the specific embodiments disclosed in the specification. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (12)

1. A method for determining a touch position, for determining a touch position of an external object on an effective touch area of a touch device, wherein the effective touch area includes a plurality of sub-touch areas, at least one of which is The sub-touch area has an irregular shape, and the method for determining a touch position includes the steps of: Acquire the touch sensing signal generated by the touch operation at the current moment; the touch operation of the external object will contact with different positions of the effective touch area at the same time, causing corresponding multiple signals at different positions of the effective touch area. Each touch electrode generates the touch sensing signal; the size of the touch electrode is smaller than the contact area between the external object and the effective touch area; the touch sensing signal strength of the touch electrode caused by touch It is related to the contact area and closeness of contact between the external object and the corresponding sub-touch area; the area of the sub-touch area or the touch electrode corresponding to the sub-touch area is still larger than the size of the display pixel on the display screen ; Determining the sub-touch area that generates the peak touch sensing signal and the sub-touch area adjacent to it as the sub-touch area to be tested, and acquiring the positioning coordinate values corresponding to each of the sub-touch areas to be tested; The corresponding relationship between the positioning coordinate values X _L and Y _L of the sub-touch area and the sub-touch area is the index of the positioning coordinate values X _L and Y _L of the sub-touch area and the number of the sub-touch area respectively. Table, according to the sub-touch area to be measured determined by the peak touch sensing signal, the positioning coordinate values X _L and Y _L of the sub-touch area to be measured are obtained by looking up the index table; The sub-touch area where the signal is sensed is the position that the external object actually wants to touch most; According to the positioning coordinate value of each sub-touch area to be measured and its corresponding touch sensing signal, the touch coordinate value of the actual touch position of the external object at the current moment is calculated. 2. The touch position determining method according to claim 1, characterized in that: A rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to represent that the sub-touch area is in The position within the effective touch area, a predetermined number of reference points are set along the edge of the sub-touch area, each reference point has a predetermined coordinate value in the positioning coordinate system, and the positioning coordinates of the sub-touch area The abscissa value of the sub-touch area is the average value of the abscissa values of the predetermined number of reference points, and the ordinate value of the positioning coordinates of the sub-touch area is the average value of the ordinate values of the above predetermined number of reference points. 3. The touch position determination method according to claim 2, characterized in that: The reference points are arranged at equal intervals along the edge of the sub-touch area; or The reference points are arranged at unequal intervals along the edges of the sub-touch areas. 4. The method for determining a touch position according to claim 2, wherein relatively dense reference points are set on the irregularly shaped edge section of the sub-touch area, and the shape of the sub-touch area Relatively sparse reference points are set on regular edge segments. 5. The touch position determining method according to claim 1, characterized in that: A rectangular coordinate system is established on the plane where the effective touch area is located as a positioning coordinate system, and each sub-touch area is preset with a positioning coordinate value in the positioning coordinate system to represent that the sub-touch area is in For the position within the effective touch area, the positioning coordinate value of the sub-touch area adopts the center-of-gravity coordinate value of the sub-touch area. 6. The touch position determination method according to claim 1, characterized in that: The touch coordinate value is calculated by performing a weighted average on the positioning coordinate values of a plurality of sub-touch areas to be measured acquired at each touch position, wherein the weight of the weighted average is each sub-touch area to be measured The touch sensing signal value corresponding to the control area. 7. A touch device, characterized in that it comprises: Protective layers, including upper surfaces that are in direct contact with external objects; The touch sensing layer includes a plurality of touch sensors, and the area on the upper surface of the protective layer within the touch sensing range of each touch sensor is defined as the sub-touch area corresponding to the touch sensor. The combination of multiple sub-touch areas corresponding to the touch sensors is defined as the effective touch area of the touch device. When the external object touches the effective touch area, the touch sensor located near the touch position generates A touch sensing signal related to an external object; the touch operation of the external object will be in contact with different positions of the effective touch area at the same time, causing corresponding multiple touches at different positions of the effective touch area An electrode generates the touch sensing signal; the size of the touch electrode is smaller than the contact area between the external object and the effective touch area; the touch sensing signal strength of the touch electrode caused by touch is different from the The external object is related to the contact area and contact closeness of the corresponding sub-touch area; the area of the sub-touch area or the touch electrode corresponding to the sub-touch area is still larger than the size of the display pixel on the display screen; and a touch processing module, connected to the touch sensing layer, used to obtain the touch sensing signal at the current moment, the sub-touch area that will generate the peak touch sensing signal and the sub-touch area adjacent to it Determine it as the sub-touch area to be tested, and obtain the positioning coordinate values corresponding to each sub-touch area to be tested, and according to the positioning coordinate value of each sub-touch area to be tested and its corresponding touch sensing signal, and calculate the touch coordinate value of the actual touch position of the external object at the current moment; the corresponding relationship between the positioning coordinate values X _L and Y _L of the sub-touch area and the sub-touch area is the Positioning coordinate values _XL and _YL are respectively related to the index table of the number of the sub-touch area, and the sub-touch area to be tested determined according to the peak touch sensing signal is obtained by checking the index table to obtain the sub-touch area to be tested. The positioning coordinate values X _L and Y _L of the control area; the sub-touch area that generates the peak touch sensing signal is the position that the external object actually wants to touch most. 8. The touch device according to claim 7, wherein a rectangular coordinate system is established on the plane where the effective touch area is located as the positioning coordinate system, and each sub-touch area is preset with The positioning coordinate value in the positioning coordinate system is used to represent the position of the sub-touch area in the effective touch area, and a predetermined number of reference points are set along the edge of the sub-touch area. There are predetermined coordinate values in the system, the abscissa value of the positioning coordinates of the sub-touch area is the average value of the abscissa values of the predetermined number of reference points, and the ordinate value of the positioning coordinates of the sub-touch area is is the average value of the ordinate values of the aforementioned predetermined number of reference points. 9. The touch device according to claim 7, wherein a rectangular coordinate system is established on the plane where the effective touch area is located as the positioning coordinate system, and each sub-touch area is preset with The positioning coordinate value in the positioning coordinate system represents the position of the sub-touch area in the effective touch area, and the positioning coordinate value of the sub-touch area adopts the barycenter coordinate value of the sub-touch area. 10. The touch device according to claim 7, wherein the touch processing module calculates by weighting the positioning coordinate values of a plurality of sub-touch areas to be measured acquired at each touch position The touch coordinate value is obtained, wherein the weight of the weighted average is the touch sensing signal value corresponding to each sub-touch area to be tested. 11. The touch device according to claim 7, wherein the touch sensor is a touch electrode for capacitive sensing, wherein at least one sub-touch area and its corresponding touch electrode have different regular shape. 12. An electronic device, comprising the touch device according to any one of claims 7 to 11.

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