Patent ID: 12216876

DETAILED DESCRIPTION

Technical solutions in some embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings below. Obviously, the described embodiments are merely some but not all embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure shall be included in the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the description and the claims, the term “comprise” and other forms thereof such as the third-person singular form “comprises” and the present participle form “comprising” are construed as open and inclusive, i.e., “including, but not limited to”. In the description of the specification, the terms such as “one embodiment”, “some embodiments”, “exemplary embodiments”, “example”, “specific example” or “some examples” are intended to indicate that specific features, structures, materials or characteristics related to the embodiment(s) or example(s) are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment(s) or example(s). In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any suitable manner.

Hereinafter, the terms such as “first” and “second” are used for descriptive purposes only, and are not to be construed as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with “first” or “second” may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the term “a plurality of” or “the plurality of” means two or more unless otherwise specified.

In the description of some embodiments, the expressions “connected” and derivatives thereof may be used. For example, the term “connected” may be used in the description of some embodiments to indicate that two or more components are in direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content herein.

The term “approximately” as used herein includes a stated value and an average value within an acceptable range of deviation of a particular value. The acceptable range of deviation is determined by a person of ordinary skill in the art in consideration of the measurement in question and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system).

The term such as “parallel” or “perpendicular” as used herein includes a stated condition and a condition similar to the stated condition. A range of the similar condition is within an acceptable range of deviation. The acceptable range of deviation is determined by a person of ordinary skill in the art in view of measurement in question and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system). For example, the term “parallel” includes absolute parallelism and approximate parallelism, and an acceptable range of deviation of the approximate parallelism may be a deviation within 5°; and the term “perpendicular” includes absolute perpendicularity and approximate perpendicularity, and an acceptable range of deviation of the approximate perpendicularity may also be a deviation within 5°.

As used herein, the term “same” may be exactly the same or approximately the same.

It will be understood that when a layer or element is referred to as being on another layer or substrate, the layer or element may be directly on the another layer or substrate, or there may be intermediate layer(s) between the layer or element and the another layer or substrate.

Exemplary embodiments are described herein with reference to sectional views and/or plan views as idealized exemplary drawings. In the accompanying drawings, thicknesses of layers and sizes of regions are enlarged for clarity. Variations in shapes relative to the accompanying drawings due to, for example, manufacturing technologies and/or tolerances may be envisaged. Therefore, the exemplary embodiments should not be construed to be limited to the shapes of regions shown herein, but to include deviations in the shapes due to, for example, manufacturing. For example, an etched region shown in a rectangular shape generally has a feature of being curved. Therefore, the regions shown in the accompanying drawings are schematic in nature, and their shapes are not intended to show actual shapes of regions in a device, and are not intended to limit the scope of the exemplary embodiments.

FIG.1is a structural diagram of an electronic device300in accordance with some embodiments. Referring toFIG.1, some embodiments of the present disclosure provide an electronic device300. The electronic device300may include a smart access control, a music player, a washing machine, an air conditioner, a refrigerator, and other electronic products with touch function. Embodiments of the present disclosure do not further limit a form of the display device300, and a structure of the display device300will be described exemplarily below.

As shown inFIG.1, the electronic device300includes a touch structure100and a plurality of touch buttons312, and the plurality of touch buttons312respectively correspond to different regions of the touch structure100. It can be understood that, the touch buttons312are used to guide a user to perform touch operations on different positions of the touch structure100.

The touch structure100can detect a touch position and convert the touch position into an electrical signal. In this way, an operating state of the electronic device300may be controlled, for example, start, stop, temperature rise or temperature drop of the electronic device300is controlled, according to the electrical signal output by the touch structure100, so that the electronic device300may realize different function, thereby improving convenience of use of the electronic device300.

In addition,FIG.1illustrates six touch buttons312as an example, but the present disclosure does not limit the number and positions of the touch buttons312. In some other embodiments, the number of the touch buttons312may also be one, two, three, four, five, seven or more. Moreover, the touch button312may be located at a border of the touch structure100or at the middle of the touch structure100.

FIG.2is a structural diagram of a touch display apparatus200in accordance with some embodiments. Referring toFIG.2, some embodiments of the present disclosure provide a touch display apparatus200. It can be understood that the touch display apparatus200is also an electronic device.

For example, the touch display apparatus200may be a mobile phone, a tablet computer, a television, a smart wearable product (e.g., a smart watch or a smart wristband), a virtual reality terminal device, an augmented reality terminal device, and other electronic products with image display function.

It can be understood that, the touch display apparatus200can display dynamic images such as a video or game screens, and can also display static images such as pictures. Embodiments of the present disclosure do not further limit the touch display apparatus200, and a structure of the touch display apparatus200will be exemplarily described below.

As shown inFIG.2, the touch display apparatus200includes a display panel210and a touch structure100. The display panel210is used to display images, and the touch structure100is used to detect touch positions.

The display panel210has a display surface, and the display surface is used for displaying images. The display panel210may be a liquid crystal display (LCD) panel, and may also be an organic light-emitting diode (OLED) display panel or a quantum dot light-emitting diode (QLED) display panel.

In some embodiments, the display panel210may be in a shape of a square, a circle, a polygon or other irregular shapes, which improves flexibility of the touch display apparatus200.

The touch structure100is disposed on the display surface of the display panel210. It can be understood that the touch structure100is made of a transparent material, which may avoid blocking images displayed on the display surface. In addition, the touch structure100can detect the touch position, and convert the touch position into the electrical signal for output, so that the touch display apparatus200can realize the touch function.

In some embodiments, the display panel210includes a display region and a peripheral region. The display region is used for displaying images, and the peripheral region is used for providing connection lines and bonding a flexible printed circuit (FPC). For example, the touch structure100is located in the display region of the display panel210, and is electrically connected to a main control circuit board by connection lines and FPC.

In some embodiments, a shape and an area of the touch structure100may be the same as that of the display region.

In some embodiments, the touch display apparatus200may further include a touch chip (integrated circuit, IC). The touch IC may be disposed on the peripheral region of the display panel210, or may also be disposed on the FPC or the main control circuit board, so as to receive the electrical signal output by the touch structure100and process the electrical signal. In this way, the display content of the display panel210may be controlled according to the electrical signal output by the touch structure100, thereby improving the convenience of use of the touch display apparatus200.

It can be seen from the above that the touch structure100can detect the touch position. For example, the touch structure100can detect the position touched by a human finger. The following will exemplarily describe a principle of detecting the touch position by the touch structure100by considering an example of the touch structure100detecting the touch position of the human finger.

In some embodiments, the touch structure100may be a self-capacitive capacitance touch structure. The self-capacitive capacitance touch structure includes a plurality of electrode plates arranged in an array, and all the electrode plates are insulated from each other. Each electrode plate and the ground can have capacitance therebetween. When the human finger touches any electrode plate, capacitance of the human finger will be superimposed on the corresponding electrode plate, thereby changing a capacitance value between the electrode plate and the ground. In this way, a touch position of the human finger may be determined by obtaining the capacitance value between each electrode plate and the ground, and the touch position may be converted into an electrical signal, so that the touch structure100may realize the position detection function.

FIG.3Ais a structural diagram of another touch display apparatus200in accordance with some embodiments. Referring toFIG.3A, a positional relationship between the touch structure100and the display panel210will be exemplarily described.

In some embodiments, as shown inFIG.3A, the display panel210includes a substrate218, a light-emitting device EL and an encapsulation layer216.

In some examples, the substrate218may be a rigid substrate or a flexible substrate. For example, a material of the substrate218includes any of plastic, FR-4 grade material, resin, glass, quartz, polyimide, or polymethyl methacrylate (PMMA).

The light-emitting device EL is located on a side of the substrate218. It can be understood that, the light-emitting device EL is used for emitting light. There are a plurality of light-emitting devices EL, and the plurality of light-emitting devices EL are arranged in an array. In some examples, the plurality of light-emitting devices EL are used for emitting white light. In some other examples, the plurality of light-emitting devices EL are used for emitting blue light. In yet other examples, in the plurality of light-emitting devices EL, a part of light-emitting devices EL are used for emitting red light, another part of light-emitting devices EL are used for emitting blue light, and yet another part of light-emitting devices EL are used for emitting green light.

In some examples, the light-emitting device EL includes an anode layer AND, a cathode layer CTD, and a light-emitting layer212. The anode layer AND is located on a side of the substrate218, the light-emitting layer212is located on a side of the anode layer AND away from the substrate218, and the cathode layer CTD is located on a side of the light-emitting layer212away from the anode layer AND.

For example, a material of the light-emitting layer212includes electroluminescent materials. It can be understood that the electroluminescence refers to the phenomenon that organic semiconductor materials are driven by an electric field to form excitons through injection of carriers, transport of carriers, and combination of electrons and holes, and then radiative recombination to emit light. A material of the anode layer AND includes metal, such as copper or silver. The cathode layer CTD is made of a transparent material, such as transparent indium tin oxide (ITO) or transparent indium zinc oxide (IZO), so that light emitted by the light-emitting layer212may exit through the cathode layer CTD. For example, the display panel210in the above arrangement may be called a top-emission display panel.

In some examples, in a direction from the anode layer AND to the light-emitting layer212, at least one of a hole injection layer (HIL), a hole transport layer (HTL) and an electron blocking layer (EBL) is provided between the anode layer AND and the light-emitting layer212. In a direction from the cathode layer CTD to the light-emitting layer212, at least one of an electron injection layer (EIL), an electron transport layer (ETL) and a hole blocking layer (HBL) is provided between the cathode layer CTD and the light-emitting layer212. Thus, luminescence reliability of the light-emitting device EL may be improved.

The encapsulation layer216is located on a side of the plurality of light-emitting devices EL away from the substrate218. It can be understood that the encapsulation layer216is used for encapsulating and protecting the light-emitting devices EL. For example, a material of the encapsulation layer216includes an organic material.

In some examples, the display panel210further includes driving circuits214. The driving circuit214includes a driving transistor DT, and the driving transistor DT is electrically connected to a light-emitting device EL, so that the light-emitting device EL can emit light due to driving action of the driving circuit214. For example, the driving transistor DT may be a thin film transistor (TFT).

In some embodiments, as shown inFIG.3A, the touch structure100is located on a surface of the encapsulation layer216away from the substrate218. For example, a structure of the touch structure100being located on the surface of the encapsulation layer216away from the substrate218may be called a flexible multi-layer on cell (FMLOC) structure.

FIG.3Bis a structural diagram of a touch structure100in accordance with some embodiments.FIG.4is a structural diagram of another touch structure100in accordance with some embodiments.FIG.5is a structural diagram of yet another touch structure100in accordance with some embodiments. The structure of the touch structure100will be exemplarily illustrated below with reference toFIGS.3B to5.

In some embodiments, as shown inFIG.3B, the touch structure100includes a plurality of electrode plates101. For example, the plurality of electrode plates101are arranged in an array of a grid on the surface of the encapsulation layer216away from the substrate218.

It can be understood that any electrode plate101and the ground may have capacitance. It can be seen from the above that the touch structure100may be made of a transparent material. Therefore, in some embodiments, a material of the electrode plate101may be transparent indium tin oxide (ITO), transparent indium zinc oxide (IZO), or the like.

Referring toFIG.3B, the plurality of electrode plates101are located on a same virtual reference plane M. It can be understood that, the virtual reference plane M is a reference surface that does not actually exist, and is used to draw out an arrangement relationship between the plurality of electrode plates101. In some embodiments, the virtual reference plane M may be a plane (as shown inFIG.3B). In some other embodiments, the virtual reference plane M may be a curved surface. In yet other embodiments, the virtual reference plane M may also include a plane and a curved surface together. In this way, the touch structure100may be applied not only to a flat display panel210but also to a display panel210including a curved surface, which may improve applicability of the touch structure100.

The plurality of electrode plates101are arranged adjacently. It can be understood that, the plurality of electrode plates101are insulated from each other, so as to avoid mutual influence of capacitance between different electrode plates101. In some embodiments, as shown inFIG.3B, there is a gap L between the plurality of electrode plates101, so that the plurality of electrode plates101may be insulated from each other.

In some embodiments, as shown inFIG.3B, edges of two electrode plates101adjacent to each other may be straight lines, so that the gap L between the two adjacent electrode plates101may be in a shape of a straight line. In some other embodiments, as shown inFIG.4, edges of two electrode plates101adjacent to each other may be curved lines, such as wavy lines or arcs, so that the gap L between the two adjacent electrode plates101may be in a wavy or curved shape, which may reduce the risk of the gap L being recognized by the naked eye, that is, reduce the risk of visible patterns appearing on the display panel210or the electronic device300, thereby improving the reliability of the touch display apparatus200.

As shown inFIG.3B, a smallest enclosed pattern region where a whole of the plurality of electrode plates101are located is a touch region102. It can be understood that, the touch region102includes the plurality of electrode plates101and gaps L between the plurality of electrode plates101. A touch operation in the touch region102can be detected by the touch structure100and converted into an electrical signal. In some embodiments, the touch region102may be in a shape of a circle.

A surface of each electrode plate101away from the virtual reference plane M is a sensing surface103. It can be understood that, the sensing surface103is the surface of the electrode plate101away from the display panel210. The sensing surface103is used to sense coupling capacitance brought by touch, so that the touch structure100may detect the touch position. In some embodiments, the sensing surface103has a same area as the electrode plates101.

As shown inFIG.3B, the plurality of electrode plates101includes a plurality of first electrode plates110. Each first electrode plate110has a designated edge1101, and the designated edge1101constitutes a part of a boundary104of the touch region102, that is, the first electrode plate110is disposed at a border of the touch structure100.

It can be understood that the boundary104of the touch region102includes designated edges1101of all the first electrode plates110and virtual edges each connected between two adjacent designated edges1101. It will be noted that any virtual edge may have the same trend as a designated edge1101connected to the virtual edge, for example, the two may have the same curvature or may extend along the same straight line.

It will be noted that the separation of the designated edge1101and the boundary of the touch region102inFIG.3Bis only for convenience of displaying the touch region102, and does not limit a positional relationship between the designated edge1101and the boundary of the touch region102.

At least one designated edge1101is arc-shaped. It can be understood that in the embodiments of the present disclosure, the arc-shape includes not only circular arc-shape, but also other curved arc-shape. In some embodiments, some designated edges1101may be arc-shaped, and other designated edges1101may be in a straight or wavy shape. In some other embodiments, all the designated edges1101may be arc-shaped.

In some embodiments, as shown inFIG.3B, the designated edge1101of each first electrode plate110is arc-shaped, so that the designated edges1101of the plurality of first electrode plates110may surround to form a circular touch region102. In some other embodiments, as shown inFIG.5, designated edges1101of part of the first electrode plates110are arc-shaped, and designated edges1101of the other part of the first electrode plates110are in a straight shape, so that the plurality of first electrode plates110may form a fan-shaped touch region102.

It can be understood that in a case where an area of a sensing surface103of the first electrode plate110is too large, accuracy of the touch position detected by the first electrode plate110may decrease. Since the first electrode plate110is disposed at the border of the touch structure100, the accuracy of the touch position detected by the border of the touch structure100may be reduced, thereby affecting the reliability of the touch structure100. The principle that the area of the sensing surface103of the first electrode plate110is too large and thus cause a decrease in the accuracy of the touch position detected by the first electrode plate110will be described below.

Considering an example where the touch structure100is the self-capacitive capacitance touch structure, the area of the sensing surface103of the first electrode plate110is too large, and thus the capacitance value between the first electrode plate110and the ground will increase, thereby reducing the coupling capacitance caused by the touch of the human finger, which may affect the capacitance value between the first electrode plate110and the ground. In this way, the difficulty of detecting the touch position of the human finger may increase, thereby affecting the accuracy of the touch position detected by the first electrode plate110.

FIG.6is a diagram showing a simulation result of a region A inFIG.3B. The following will exemplarily describe the simulation result of the touch structure100in some embodiments of the present disclosure with reference toFIGS.3B and6.

For example, as shown inFIG.3B, in some embodiments, the area of the sensing surface103of the first electrode plate110is too large, for example, greater than 35 mm2. A simulation is performed on the region A of the touch structure100, and the simulation result is shown inFIG.6. InFIG.6, points T are actual touch points, and points S are simulation points obtained by simulation. By considering four actual touch points of T11to T14as an example, a straight-line distance between the actual touch point T11and the simulation point S11is 0.55 mm, a straight-line distance between the actual touch point T12and the simulation point S12is 3.10 mm, a straight-line distance between the actual touch point T13and the simulation point S13is 1.49 mm, and a straight-line distance between the actual touch point T14and the simulation point S14is 0.34 mm.

It can be seen that, since the area of the sensing surface103of the first electrode plate110is too large (greater than 35 mm2), a maximum error value between the actual touch point T and the simulated point S reaches 3.10 mm, which affects the accuracy of the touch position detected by the border of the touch structure100, and reduces the reliability of the touch structure100.

It can be understood that in a case where the area of the sensing surface103of the first electrode plate110is too small, the touch of the human finger may cause capacitance values of multiple first electrode plates110to change, which also results in difficulty in positioning the touch position. In addition, in a case where the sensing surface103of the first electrode plate110is too small, for the touch region102of the same area, more first electrode plates110need to be provided. As a result, the amount of electrical signals output by the touch structure100increases, and the difficulty in processing the output electrical signals increases, thereby reducing the detection accuracy of the touch position.

It can be seen that if the area of the sensing surface103of the first electrode plate110is too large or too small, the accuracy of the touch position detected by the first electrode plate110will be affected, that is, the accuracy of the touch position detected by the border of the touch structure100may be affected.

FIG.7is a structural diagram of yet another touch structure100in accordance with some embodiments.

In some embodiments, as shown inFIG.7, an area of a sensing surface103of each first electrode plate110is in a range of 10 mm2to 35 mm2.

It can be understood that the area of the sensing surface103of each first electrode plate110is set to be in the range of 10 mm2to 35 mm2, and thus the area of the sensing surface103of the first electrode plate110may be prevented from being too large (e.g., greater than 35 mm2), thereby avoiding the excessive capacitance value of the first electrode plate110, increasing the influence of the coupling capacitance brought by the touch position on the capacitance value of the first electrode plate110, reducing the difficulty in positioning the touch position by the first electrode plate110, and improving the accuracy of the touch position detected by the first electrode plate110.

Moreover, the area of the sensing surface103of the first electrode plate110may be prevented from being too small (e.g., less than 10 mm2), thereby avoiding the influence of the touch position on the capacitance values of the multiple first electrode plates110, reducing the difficulty in positioning the touch position by the first electrode plate110, and improving the accuracy of the touch position detected by the first electrode plate110.

In addition, preventing the area of the sensing surface103of the first electrode plate110from being too small may further reduce the number of the first electrode plates110on a premise that the area of the touch region102remains unchanged, thereby reducing the amount of electrical signals output by the touch structure100, reducing the difficulty in processing the electrical signals, and further improving the detection accuracy of the touch position. Moreover, reducing the number of the first electrode plates110may also simplify the structure, reduce the cost of the touch structure100, and improve the production efficiency of the touch structure100.

Since the designated edge1101of the first electrode plate110constitutes a part of the boundary104of the touch region102, the first electrode plate110may be disposed at the edge of the touch structure100. In this way, the area of the sensing surface103of the first electrode plate110is prevented from being too large or too small, so that the accuracy of the touch position detected by the first electrode plate110may be improved, and thus the accuracy of the touch position detected by the border of the touch structure100may be improved, thereby improving the reliability of the touch structure100.

FIG.8is a diagram showing a simulation result of a region B inFIG.7. The following will exemplarily describe the simulation result of the touch structure100in some other embodiments of the present disclosure with reference toFIGS.7and8.

For example, as shown inFIG.7, a simulation is performed on the region B of the touch structure100, and the simulation result is shown inFIG.8. InFIG.8, points T are actual touch points, and points S are simulation points obtained by simulation. By considering four actual touch points of T21to T24as an example, a straight-line distance between the actual touch point T21and the simulation point S21is 0.34 mm, a straight-line distance between the actual touch point T22and the simulation point S22is 0.30 mm, and a straight-line distance between the actual touch point T24and the simulation point S24is 0.29 mm.

It can be seen that the area of the sensing surface103of each first electrode plate110is set to be in the range of 10 mm2to 35 mm2, so that a maximum error value between the actual touch point T and the simulated point S is reduced to 0.34 mm, and thus the accuracy of the touch position detected by the first electrode plate110may be improved significantly, that is, the accuracy of the touch position detected by the border of the touch structure100may be improved, thereby improving the reliability of the touch structure100.

It can be understood that, the plurality of first electrode plate110may have the same or different shapes and the same or different areas of the sensing surface103. In some embodiments, the area of the sensing surface103of the first electrode plate110may be in a range of 14.44 mm2to 35 mm2, 18 mm2to 32 mm2, 20 mm2to 30 mm2, 22 mm2to 28 mm2, or 24.5 mm2to 26.5 mm2. For example, the area of the sensing surface103of the first electrode plate110may be 12 mm2, 15 mm2, 18 mm2, 21 mm2, 25 mm2, 27 mm2, 29 mm2, 31 mm2, or 33 mm2.

In some embodiments, as shown inFIG.3B, the touch structure100includes 24 electrode plates101in total. An electrode plate101is regarded as an electrical signal output channel. That is, the touch structure100has 24 channels. The number of the first electrode plates110is 8. In some other embodiments, as shown inFIG.7, the touch structure100includes 32 electrode plates101in total. That is, the touch structure100has 32 channels. The number of the first electrode plates110is 16.

It can be seen that on the premise that the area of the touch region102remains unchanged, compared with the touch structure100shown inFIG.3B, the number of the first electrode plate110increases, that is, the number of the channels at the border of the touch structure100increases, so that the area of the sensing surface103of each first electrode plate110may be reduced, thereby improving the accuracy of the touch position detected by the first electrode plate110.

In some other embodiments, as shown inFIG.7, the plurality of electrode plates101further includes a plurality of second electrodes120. The plurality of second electrode plates120are located on a side of the plurality of first electrode plates110away from the boundary104of the touch region102.

It can be understood that the plurality of second electrode plates120are located on the side of the plurality of first electrode plates110away from the boundary104of the touch region102, that is, a side of the plurality of second electrode plates120away from the designated edges1101of the plurality of first electrode plates110. As a result, the second electrode plates120may be disposed away from the borders of the touch structure100.

It can be understood that the number of the second electrode plates120may be the same as or different from the number of the first electrode plates110. The sensing surfaces103of the plurality of second electrode plates120may be the same or different in area. The area of the sensing surface103of the second electrode plate120may be the same as or different from the area of the sensing surface103of the first electrode plate110.

In some embodiments, as shown inFIG.7, the number of the second electrode plates120is 16, that is, the number of channels of the touch structure100away from the border thereof is 16.

It can be seen from the above that the too large or too small area of the sensing surface103of the first electrode plate110will affect the accuracy of the touch position detected by the first electrode plate110. Similarly, the too large or too small area of the sensing surface103of the second electrode plate120may also affect the accuracy of the touch position detected by the second electrode plate120. Since the second electrode plate120is provided away from the border of the touch structure100, the accuracy of the touch position detected by a portion of the touch structure100away from the border may be affected.

It can be understood that, the principle that the area of the sensing surface103of the second electrode plate120affects the detection accuracy of the second electrode plate120is the same as the principle that the area of the sensing surface103of the first electrode plate110affects the detection accuracy of the first electrode plate110, and will not be repeated here.

In order to improve the detection accuracy of the portion of the touch structure100away from the border, in some embodiments, the area of the sensing surface103of each second electrode plate120is in a range of 10 mm2to 40 mm2.

It can be understood that the area of the sensing surface103of each second electrode plate120is set to be in the range of 10 mm2to 40 mm2, and thus the area of the sensing surface103of the second electrode plate120may be prevented from being too large (e.g., greater than 40 mm2), thereby avoiding the excessive capacitance value of the second electrode plate, increasing the influence of the coupling capacitance brought by the touch position on the capacitance value of the second electrode plate120, reducing the difficulty in positioning the touch position by the second electrode plate120, and improving the accuracy of the touch position detected by the second electrode plate120.

Moreover, the area of the sensing surface103of the second electrode plate120may be prevented from being too small (e.g., less than 10 mm2), thereby avoiding the influence of the touch position on the capacitance values of multiple second electrode plates120, reducing the difficulty in positioning the touch position by the second electrode plate120, and improving the accuracy of the touch position detected by the second electrode plate120.

In addition, preventing the area of the sensing surface103of the second electrode plate120from being too small may further reduce the number of the second electrode plates120on a premise that the area of the touch region102remains unchanged, thereby reducing the amount of electrical signals output by the touch structure100, reducing the difficulty in processing the electrical signals, and further improving the detection accuracy of the touch position. Moreover, reducing the number of the second electrode plates120may also simplify the structure, reduce the cost of the touch structure100, and improve the production efficiency of the touch structure100.

Since the second electrode plate120is provided away from the border of the touch structure100, the area of the sensing surface103of the second electrode plate120is prevented from being too large or too small, so that the accuracy of the touch position detected by the second electrode plate120may be improved, and thus the accuracy of the touch position detected by the portion of the touch structure100away from the border thereof may be improved, thereby further improving the reliability of the touch structure100.

In some embodiments, the area of the sensing surface103of the second electrode plate120may be in a range of 14.44 mm2to 37.21 mm2, 15 mm2to 35 mm2, 18 mm2to 32 mm2, 20 mm2to 30 mm2, 22 mm2to 28 mm2, or 24.5 mm2to 26.5 mm2. For example, the area of the sensing surface103of the second electrode plate120may be 12 mm2, 15 mm2, 18 mm2, 22 mm2, 25 mm2, 33 mm2, 35 mm2, or 38 mm2.

It can be seen from the above that the area of the sensing surface103of the first electrode plate110may be the same as or different from the area of the sensing surface103of the second electrode plate120. In some embodiments, a ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is in a range of 0.6 to 1.5.

It can be understood that the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is set to be in the range of 0.6 to 1.5, and thus a difference between the area of the sensing surface103of the first electrode plate110and the area of the sensing surface103of the second electrode plate120is prevented from being too large (e.g., the ratio of the areas of the sensing surfaces103of the two is greater than 1.5 or less than 0.6), thereby preventing the difference between the electrical signals output by the first electrode plate110and the second electrode plate120being too large. Therefore, the uniformity between the area of the sensing surface103of the first electrode plate110and the area of the sensing surface103of the second electrode plate120may be improved, and thus uniformity and consistency between an electrical signal output by the first electrode plate110and an electrical signal output by the second electrode plate120may be improved. Moreover, the difficulty in processing the electrical signals may be reduced, the touch consistency of the touch structure100may be improved, and thus accuracy and reliability of the touch structure100may be improved.

In some embodiments, the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120may be 0.7, 0.8, 0.9, 1.1, 1.2, 1.3 or 1.4.

In some embodiments, the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120may be 1, that is, the area of the sensing surface103of the first electrode plate110is the same or approximately the same as the area of the sensing surface103of the second electrode plate120. Thus, it may further ensure the uniformity and consistency between the electrical signal output by the first electrode plate110and the electrical signal output by the second electrode plate120, and improve the accuracy and reliability of the touch position detected by the touch structure100.

It can be seen from the above that there may be a plurality of first electrode plates110and a plurality of second electrode plates120. In some embodiments, a ratio of areas of sensing surfaces103of any two first electrode plates110is in a range of 0.6 to 1.5, and a ratio of areas of sensing surfaces103of any two second electrode plates120is also in a range of 0.6 to 1.5. In this way, a ratio of areas of sensing surfaces103of any two electrode plates101is in a range of 0.6 to 1.5. Thus, it may not only improve the uniformity and consistency between the electrical signal output by the first electrode plate110and the electrical signal output by the second electrode plate120, but also improve the uniformity and consistency of the electrical signals output by any two electrode plates101, thereby further improving the reliability of the touch structure100.

In some embodiments, the ratio of the areas of the sensing surfaces103of any two electrode plates101may be 0.7, 0.8, 0.9, 1.1, 1.2, 1.3 or 1.4. It can be understood that the ratio of the areas of the sensing surfaces103of any two first electrode plates110, the ratio of the areas of the sensing surfaces103of any two second electrode plates120, and a ratio of the area of the sensing surface103of the first electrode plates110to the area of the sensing surface103of the second electrode plate120may be the same or different.

In some embodiments, a ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is in a range of 0.8 to 1.2.

It can be seen from the above that the smaller a difference between the area of the sensing surface103of the first electrode plate110and the area of the sensing surface103of the second electrode plate120, the smaller a difference between the electrical signal output by the first electrode plate110and the electrical signal output by the second electrode plate120, and the greater the accuracy of the touch position detected by the touch structure100.

Therefore, the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is set to be in the range of 0.8 to 1.2, and thus the difference between the area of the sensing surface103of the first electrode plate110and the area of the sensing surface103of the second electrode plate120may further be reduced, thereby improving the accuracy and reliability of the touch position detected by the touch structure100.

In some embodiments, a ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120may be in a range of 0.9 to 1.1. For example, the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120may be 0.85, 0.95 or 1.05.

In some embodiments, a ratio of areas of sensing surfaces103of any two first electrode plates110is in a range of 0.8 to 1.2, and a ratio of areas of sensing surfaces103of any two second electrode plates120is also in a range of 0.8 to 1.2. In this way, a ratio of areas of sensing surfaces103of any two electrode plates101is in a range of 0.8 to 1.2, and thus the uniformity and consistency of the electrical signals output by any two electrode plates101may be improved, thereby further improving the reliability of the touch structure100.

In some embodiments, a ratio of areas of sensing surfaces103of any two electrode plates101is in a range of 0.9 to 1.1. For example, the ratio of the areas of the sensing surfaces103of any two electrode plates101may be 0.85, 0.95 or 1.05.

In some embodiments, a ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is in a range of 0.95 to 1.05.

It can be understood that the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is set to be in the range of 0.95 to 1.05, and thus the difference between the area of the sensing surface103of the first electrode plate110and the area of the sensing surface103of the second electrode plate120may further be reduced, thereby improving the accuracy and reliability of the touch structure100.

In some embodiments, a ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120may be in a range of 0.97 to 1.02 or in a range of 0.98 to 1.01. For example, the ratio of the area of the sensing surface103of the first electrode plate110to the area of the sensing surface103of the second electrode plate120is 0.98, 1.02 or 1.03.

In some embodiments, a ratio of areas of sensing surfaces103of any two first electrode plates110is in a range of 0.95 to 1.05, and a ratio of areas of sensing surfaces103of any two second electrode plates120is also in a range of 0.95 to 1.05. In this way, a ratio of areas of sensing surfaces103of any two electrode plates101is in a range of 0.95 to 1.05, and thus the uniformity and consistency of the electrical signals output by any two electrode plates101may further be improved, and the accuracy and reliability of the touch structure100may be improved.

In some embodiments, a ratio of areas of sensing surfaces103of any two electrode plates101may be in the range of 0.97 to 1.02 or in the range of 0.98 to 1.01. For example, the ratio of the areas of the sensing surfaces103of any two electrode plates101is 0.98, 1.02 or 1.03.

In some embodiments, as shown inFIG.3B, an orthographic projection of each second electrode plate120on the virtual reference plane M is in a shape of a polygon.

It can be understood that, the polygon may be a square, a rectangle, a parallelogram, a triangle, a regular hexagon, or the like. It can be seen from the above that, as shown inFIG.4, adjacent edges of two electrode plates101may be curved lines. Therefore, the polygon in the embodiments of the present disclosure may be an approximate polygon surrounded by curved lines.

The orthographic projection of the second electrode plate120on the virtual reference plane M is provided as the polygon. In this way, by changing the shape of the second electrode plate120, the second electrode plates120and the first electrode plates110may form the touch region102with a varying shape, thereby improving the flexibility of the touch structure100.

Moreover, the orthographic projection of the second electrode plate120on the virtual reference plane M is provided as the polygon, and thus the structural regularity of the second electrode plate120may further be improved, which facilitates the arrangement of the plurality of second electrode plates120. Therefore, the production efficiency of the touch structure100may be improved.

It can be seen from the above that the electrode plates101include a plurality of first electrode plates110and a plurality of second electrode plates120. The following will exemplarily describe the structures of the first electrode plate110and the second electrode plate120in some embodiments of the present disclosure with reference toFIG.7.

In some embodiments, as shown inFIG.7, the plurality of first electrode plates110include first irregular electrode plates111aand second irregular electrode plates112a. It can be understood that in the embodiments of the present disclosure, the “irregular electrode plate” may be an irregular enclosed structure composed of an arc line segment and straight line segments, or may be an irregular structure composed of a plurality of straight line segments. The term “irregular electrode plate” is only used to distinguish it from electrode plates with other shapes (e.g., square electrode plates and rectangular electrode plates), and embodiments of the present disclosure do not further limit the shape of the “irregular electrode plate”.

It can be understood that there may be a plurality of first irregular electrode plates111aand a plurality of second irregular electrode plates112a. The shapes of the first irregular electrode plates111aand the second irregular electrode plates112amay be the same or different, the numbers of the first irregular electrode plates111aand the second irregular electrode plates112amay be the same or different, and areas of sensing surfaces103of the first irregular electrode plates111aand areas of sensing surfaces103of the second irregular electrode plates112amay be the same or different.

For example, as shown inFIG.7, the first irregular electrode plate111aincludes a first arc edge1110a, a first edge1111aand a second edge1112a. The first arc edge1110ais a designated edge1101of the first irregular electrode plate111a. In some embodiments, the first arc edge1110amay be in a shape of a circular arc.

The first edge1111aof the first irregular electrode plate111ais connected to an end of the first arc edge1110a, and the second edge1112aof the first irregular electrode plate111ais connected to the other end of the first arc edge1110a. It can be understood that a length of the first edge1111aof the first irregular electrode plate111amay be the same as or different from a length of the second edge1112aof the first irregular electrode plate111a.

An end of the first edge1111aof the first irregular electrode plate111aaway from the first arc edge1110ais connected to an end of the second edge1112aof the first irregular electrode plate111aaway from the first arc edge1110a. Moreover, the first edge1111aof the first irregular electrode plate111ais perpendicular to the second edge1112aof the first irregular electrode plate111a, so that the first arc edge1110a, the first edge1111aof the first irregular electrode plate111aand the second edge1112aof the first irregular electrode plate111amay form a closed first irregular electrode plate111a.

As shown inFIG.7, the second irregular electrode plate112ais provided adjacent to the first edge1111aof the first irregular electrode plate111a. In this way, by adjusting shapes or areas of the first irregular electrode plate111a, the second irregular electrode plate112aand the second electrode plate120, the touch region102with a varying shape may be formed, thereby improving the flexibility of the touch structure100.

In some embodiments, as shown inFIG.7, each second electrode plate120is in a shape of a square. First irregular electrode plates111a, second irregular electrode plates112aand square second electrode plates120may form a circular touch region102. It can be understood that, by adjusting lengths of different edges of the first irregular electrode plates111a, the second irregular electrode plates112a, and the second electrode plates120, a diameter of the circular touch region102may be adjusted to improve the flexibility of the touch structure100.

For example, as shown inFIG.7, the plurality of second electrode plates120include first square electrode plates121and second square electrode plates122. In some embodiments, a length of an edge of the first square electrode plate121is the same as a length of an edge of the second square electrode plate122, that is, an area of a sensing surface103of the first square electrode plate121is the same or approximately the same as an area of a sensing surface103of the second square electrode plate122.

The first square electrode plate121is provided adjacent to the second edge1112aof the first irregular electrode plate111a, and the second square electrode plate122is adjacent to both the first square electrode plate121and the second irregular electrode plate112a.

In some embodiments, the length of the edge of the first square electrode plate121is the same as the length of the second edge1112aof the first irregular electrode plate111a, and the length of the edge of the second square electrode plate122is the same as a length of an edge of the second irregular electrode plate112aproximate to the second square electrode plate122, which may improve the regularity of the touch structure100.

In some examples, as shown inFIG.7, the plurality of second electrode plates120further include fourth square electrode plates127. The fourth square electrode plate127is provided adjacent to the second square electrode plate122, and the fourth square electrode plate127is provided away from all irregular electrode plates (including the first irregular electrode plates111aand the second irregular electrode plates112a).

For example, lengths of edges of the first square electrode plates121, the second square electrode plates122and the fourth square electrode plates127are the same, which may further improve the regularity of the touch structure100.

In some embodiments, as shown inFIG.7, there is a first gap L1between the second irregular electrode plate112aand the first edge1111aof the first irregular electrode plate111a, there is a second gap L2between the second square electrode plate122and the first square electrode plate121, and the second gap L2and the first gap L1are located on a same straight line.

Such provision improves the regularity of the arrangement of the first irregular electrode plates111a, the second irregular electrode plates112a, the first square electrode plates121and the second square electrode plates122, that is, the regularity of the arrangement between the first electrode plates110and the second electrode plates120may be improved. Thus, the convenience of processing the touch structure100may be improved, and the production cost of the touch structure100may be reduced.

In some embodiments, as shown inFIG.7, there is a third gap L3between two adjacent second irregular electrode plates112a, there is a fourth gap L4between two adjacent second square electrode plates122, and the third gap L3and the fourth gap L4are located on a same straight line, which may further improve the regularity of the arrangement between the first electrode plates110and the second electrode plates120.

In some embodiments, as shown inFIG.7, there is a seventeenth gap L17between two adjacent fourth square electrode plates127. The seventeenth gap L17is located on a same straight line as the third gap L3and the fourth gap L4, which may further improve the regularity of the arrangement between the plurality of electrode plates101.

It can be seen from the above that the areas of the sensing surfaces103of the first irregular electrode plates111aand the areas of the sensing surfaces103of the second irregular electrode plates112amay be the same or different. In some embodiments, the area of the sensing surface103of the first irregular electrode plate111ais smaller than the area of the sensing surface103of the second irregular electrode plate112a.

It can be understood that setting the area of the sensing surface103of the first irregular electrode plate111ato be smaller than the area of the sensing surface103of the second irregular electrode plate112amay further reduce the area of the sensing surface103of the first irregular electrode plate111a, thereby improving the accuracy of the touch position detected by the first irregular electrode plate111a.

Moreover, setting the area of the sensing surface103of the first irregular electrode plate111ato be smaller than the area of the sensing surface103of the second irregular electrode plate112amay, on a basis of the first gap L1and the second gap L2being located on the same straight line, cause the designated edge1101of the first irregular electrode plate111aand the designated edge1101of the second irregular electrode plate112ato surround to form an arc shape, thereby improving the regularity of the touch structure100.

In some embodiments, the sensing surfaces103of the plurality of second electrode plates120have the same areas. A ratio of the area of the sensing surface103of the first irregular electrode plate111ato the area of the sensing surface103of any second electrode plate120is 0.6. A ratio of the area of the sensing surface103of the second irregular electrode plate112ato the area of the sensing surface103of any second electrode plate120is 0.9.

In this way, on a basis that the area of the sensing surface103of the first irregular electrode plate111ais smaller than the area of the sensing surface103of the second irregular electrode plate112a, a ratio of the areas of the sensing surfaces103of any two electrode plates101may be in a range of 0.6 and 1.5, thereby avoiding an excessive difference between the areas of the sensing surfaces103of any two electrode plates101, ensuring an improvement of the uniformity of the electrical signals output by the touch structure100, and improving the accuracy and reliability of the touch structure100.

In some embodiments, a length an edge of each second electrode plate120is in a range of 3.17 mm to 6.32 mm.

It can be seen from the above that the area of the sensing surface103of the second electrode plate120is in the range of 10 mm2to 40 mm2, and the second electrode plate120is in a shape of a square. Therefore, setting the length of the edge of each second electrode plate120to be in the range of 3.17 mm to 6.32 mm may, on a basis of improving the regularity of the structure of the second electrode plate120, make the area of the sensing surface103of the second electrode plate120meet the requirements, which may prevent the area of the sensing surface103of the second electrode plate120from being too large or too small, thereby ensuring the accuracy of the touch position detected by the touch structure100.

In some embodiments, the length of the edge of the second electrode plate120may be in a range of 3.8 mm to 6.1 mm, that is, the area of the sensing surface103of the second electrode plate120is in a range of 14.44 mm2to 37.21 mm2. In some embodiments, the length of the edge of the second electrode plate120may also be in a range of 4 mm to 6 mm, 4.2 mm to 5.8 mm, 4.5 mm to 5.5 mm, or 4.7 mm to 5.3 mm. For example, the length of the edge of the second electrode plate120may be 3.3 mm, 3.5 mm, 3.9 mm, 4.5 mm, 4.8 mm, 5 mm, 5.3 mm, 5.8 mm or 6.2 mm.

FIG.9is a structural diagram of yet another touch structure100in accordance with some embodiments. It can be seen from the above that, in some embodiments, the plurality of first electrode plates110include the first irregular electrode plates111aand the second irregular electrode plates112a. In some other embodiments, as shown inFIG.9, the plurality of first electrode plates110include third irregular electrode plates111b, fourth irregular electrode plates112band fifth irregular electrode plates113b.

It can be understood that there may be a plurality of third irregular electrode plates111b, a plurality of fourth irregular electrode plates112band a plurality of fifth irregular electrode plates113b. The shapes of the third irregular electrode plates111b, the fourth irregular electrode plates112band the fifth irregular electrode plates113bmay be the same or different. The numbers of the third irregular electrode plates111b, the fourth irregular electrode plates112band the fifth irregular electrode plates113bmay be the same or different. The areas of the sensing surfaces103of the third irregular electrode plates111b, the sensing surfaces103of the fourth irregular electrode plates112band the sensing surfaces103of the fifth irregular electrode plates113bmay be the same or different.

For example, as shown inFIG.9, the third irregular electrode plate111bincludes a second arc edge1110b, a first edge1111band a second edge1112b. The second arc edge1110bis the designated edge1101of the third irregular electrode plate111b. In some embodiments, the second arc edge1110bmay be in a shape of a circular arc.

The first edge1111bof the third irregular electrode plate111bis connected to an end of the second arc edge1110b, and the second edge1112bof the third irregular electrode plate111bis connected to the other end of the second arc edge1110b. A direction in which the first edge1111bof the third irregular electrode plate111bextends is perpendicular to a direction in which the second edge1112bof the third irregular electrode plate111bextends.

In some embodiments, as shown inFIG.9, the third irregular electrode plate111bmay further include a third edge1113band a fourth edge1114b. The third edge1113bof the third irregular electrode plate111bis connected to an end of the first edge1111bof the third irregular electrode plate111baway from the second arc edge1110b. The fourth edge1114bof the third irregular electrode plate111bis connected to an end of the second edge1112bof the third irregular electrode plate111baway from the second arc edge1110b. An end of the third edge1113bof the third irregular electrode plate111baway from the first edge1111bof the third irregular electrode plate111bis connected to an end of the fourth edge1114bof the third irregular electrode plate111baway from the second edge1112bof the third irregular electrode plate111b, and the third edge1113bof the third irregular electrode plate111bis perpendicular to the fourth edge1114bof the third irregular electrode plate111b.

In this way, the second arc edge1110b, the first edge1111bof the third irregular electrode plate111b, the second edge1112bof the third irregular electrode plate111b, the third edge1113bof the third irregular electrode plate111band the fourth edge1114bof the third irregular electrode plate111bmay form a closed third irregular electrode plate111b.

As shown inFIG.9, the fourth irregular electrode plate112bis provided adjacent to the first edge1111bof the third irregular electrode plate111b, and the fifth irregular electrode plate113bis provided adjacent to the second edge1112bof the third irregular electrode plate111b. In this way, by adjusting shapes or areas of the third irregular electrode plate111b, the fourth irregular electrode plate112b, the fifth irregular electrode plate113band the second electrode plate120, the touch region102with a varying shape may be formed, thereby improving the flexibility of the touch structure100.

In some embodiments, as shown inFIG.9, each second electrode plate120is in a shape of a square. Third irregular electrode plates111b, fourth irregular electrode plates112b, fifth irregular electrode plates113band square second electrode plates120may form a circular touch region102. It can be understood that, by adjusting lengths of different edges of the irregular electrode plates111b, fourth irregular electrode plates112b, fifth irregular electrode plates113band square second electrode plates120, a diameter of the circular touch region102may be adjusted to improve the flexibility of the touch structure100.

In some embodiments, as shown inFIG.9, the plurality of second electrode plates120includes fifth square electrode plates131, sixth square electrode plates132and seventh square electrode plates133. For example, the fifth square electrode plate131is provided adjacent to the third edge1113bof the third irregular electrode plate111band the fourth irregular electrode plate112b, the sixth square electrode plate132is provided adjacent to the fourth edge1114bof the third irregular electrode plate111band the fifth irregular electrode plate113b, the seventh square electrode plate133is provided adjacent to the fifth square electrode plate131and the sixth square electrode plate132, and the seventh square electrode plate133is provided away from all irregular electrode plates (including the third irregular electrode plate111b, the fourth irregular electrode plate112band the fifth irregular electrode plate113b).

Moreover, lengths of edges of the fifth square electrode plates131, the sixth square electrode plates132and the seventh square electrode plates133are the same. The length of the third edge1113bof the third irregular electrode plate111b, the length of the fourth edge1114bof the third irregular electrode plate111band the length of the edge of any second electrode plate120(including the fifth square electrode plate131, the sixth square electrode plate132and the seventh square electrode plate133) are the same, which may further improve the regularity of the structure of the touch structure100.

In some embodiments, as shown inFIG.9, there is a fifth gap L5between two adjacent fourth irregular electrode plates112b, and there is a sixth gap L6between two adjacent fifth square electrode plates131. The fifth gap L5and the sixth gap L6are located on a same straight line, which may further improve the regularity of the arrangement between the first electrode plates110and the second electrode plates120.

As shown inFIG.9, there is a seventh gap L7between two adjacent fifth irregular electrode plates113b, and there is an eighteenth gap L18between two adjacent sixth square electrode plates132. The seventh gap L7and the eighteenth gap L18are located on a same straight line.

As shown inFIG.9, there is a nineteenth gap L19between two adjacent seventh square electrode plates133. For example, there are two nineteenth gaps L19adjacent to each seventh square electrode plate133, and the two nineteenth gaps L19are perpendicular to each other. A nineteenth gap L19is located on a same straight line as the fifth gap L5and the sixth gap L6, and another nineteenth gap L19is located on a same straight line as the seventh gap L7and the eighteenth gap L18. Therefore, the regularity of the arrangement of the first electrode plates110and the second electrode plates120may further be improved.

In some embodiments, a length an edge of each second electrode plate120is in a range of 5 mm to 6 mm.

It can be seen from the above that the area of the sensing surface103of the second electrode plate120is in the range of 10 mm2to 40 mm2, and the second electrode plate120is in a shape of a square. Therefore, setting the length of the edge of each second electrode plate120to be in the range of 5 mm to 6 mm may, on a basis of improving the regularity of the structure of the second electrode plate120, make the area of the sensing surface103of the second electrode plate120meet the requirements, which may prevent the area of the sensing surface103of the second electrode plate120from being too large or too small, thereby ensuring the reliability of the touch structure100.

In addition, setting the length of the edge of the second electrode plate120to be in the range of 5 mm to 6 mm may increase a sum of areas of sensing surfaces103of all the second electrode plates120, so that a sum of areas of sensing surfaces103of the first electrode plates110may be reduced on a premise that the area of the touch region102remains unchanged. It can be understood that reducing the sum of the areas of the sensing surfaces103of the first electrode plates110may reduce the number of the first electrode plates110, and further reduce the amount of electrical signals output by the touch structure100, thereby reducing the difficulty in processing the electrical signals and improving the accuracy of the detected touch position.

In some embodiments, the length of the edge of the second electrode plate120may be in a range of 5.1 mm to 5.9 mm, 5.2 mm to 5.8 mm, 5.3 mm to 5.7 mm, or 5.4 mm to 5.6 mm. For example, the length of the edge of the second electrode plate120may be 5.15 mm, 5.25 mm, 5.55 mm, 5.65 mm, 5.75 mm or 5.85 mm.

In some embodiments, as shown inFIG.9, the number of the first electrode plates110is 12, and the number of the second electrode plates120is also12, that is, the number of the channels of the touch structure100is 24.

FIG.10is a diagram showing a simulation result of region C inFIG.9. The simulation results of the touch structure100in some embodiments of the present disclosure will be exemplarily illustrated below with reference toFIGS.9and10. For example, as shown inFIG.9, simulation is performed on the region C of the touch structure100, and the simulation result is shown inFIG.10. InFIG.10, points T are actual touch points, and points S are simulation points obtained by simulation. By considering four actual touch points of T31to T34as an example, a straight-line distance between the actual touch point T31and the simulation point S31is 0.29 mm, a straight-line distance between the actual touch point T32and the simulation point S32is 0.45 mm, a straight-line distance between the actual touch point T33and the simulation point S33is 0.53 mm, and a straight-line distance between the actual touch point T34and the simulation point S34is 0.29 mm. It can be seen that the above arrangement may cause a maximum error value between the actual touch point T and the simulated point S is only 0.53 mm, which may improve the accuracy of the touch structure100.

FIG.11is a structural diagram of yet another touch structure100in accordance with some embodiments. It can be seen from the above that, in some embodiments, the plurality of second electrode plates120are each in a shape of a square. In some other embodiments, as shown inFIG.11, the plurality of second electrode plates120include first rectangular electrode plates124, second rectangular electrode plates125and third square electrode plates126. It can be understood that shapes of the first rectangular electrode plates124and the second rectangular electrode plates125may be squares or oblongs.

It will be understood that the numbers of the first rectangular electrode plates124, the second rectangular electrode plates125and the third square electrode plates126may be the same or different. Areas of sensing surfaces103of the first rectangular electrode plates124, area of sensing surfaces103of the second rectangular electrode plates125and area of sensing surfaces103of the third square electrode plates126may be the same or different.

As shown inFIG.11, the first rectangular electrode plate124is provided adjacent to the third edge1113bof the third irregular electrode plate111b, the second rectangular electrode plate125is provided adjacent to the fourth edge1114bof the third irregular electrode plate111b, and the third square electrode plate126is provided adjacent to the first rectangular electrode plate124and the second rectangular electrode plate125. Moreover, the third square electrode plate126is provided away from the irregular electrode plates (including the third irregular electrode plate111b, the fourth irregular electrode plate112band the fifth irregular electrode plate113b).

It can be understood that by adjusting shapes or areas of the first rectangular electrode plate124, the second rectangular electrode plate125and the third square electrode plate126, the touch region102with a varying shape may be formed, thereby improving the flexibility of the touch structure100.

In some embodiments, as shown inFIG.11, the first rectangular electrode plates124and the second rectangular electrode plates125may surround the third square electrode plates126.

In some embodiments, the first rectangular electrode plates124, the second rectangular electrode plates125, the third square electrode plates126and the plurality of first electrode plates110(the third irregular electrode plates111b, the fourth irregular electrode plates112band the fifth irregular electrode plates113b) may form the circular touch region102. It can be understood that, by adjusting lengths of different edges of the first rectangular electrode plates124, the second rectangular electrode plates125, the third square electrode plates126, and the first electrode plates110, a diameter of the circular touch region102may be adjusted to improve the flexibility of the touch structure100.

It can be seen from the above that, as shown inFIG.11, there is a fifth gap L5between two adjacent fourth irregular electrode plates112b. In some embodiments, there is an eighth gap L8between two adjacent first rectangular electrode plates124, and the fifth gap L5and the eighth gap L8are located on a same straight line.

It can be seen from the above that there is a seventh gap L7between two adjacent fifth irregular electrode plates113b. In some embodiments, there is a tenth gap L10between two adjacent second rectangular electrode plates125, and the seventh gap L7and the tenth gap L10are located on a same straight line, which may further improve the regularity of the touch structure100.

In some embodiments, there is a ninth gap L9between two adjacent third square electrode plates126. For example, there are two ninth gaps L9adjacent to each third square electrode plates126, and the two ninth gaps L9are perpendicular to each other. A ninth gap L9is located on a same straight line as the fifth gap L5and the eighth gap L8, and another ninth gap L9is located on a same straight line as the tenth gap L10and the seventh gap L7.

In some embodiments, the area of the sensing surface103of the first rectangular electrode plate124, the area of the sensing surface103of the second rectangular electrode plate125, and the area of the sensing surface103of the third irregular electrode plate111bare the same. In this way, the first rectangular electrode plate124being provided adjacent to the third edge1113bof the third irregular electrode plate111band the second rectangular electrode plate125being provided adjacent to the fourth edge1114bof the third irregular electrode plate111bmean that electrode plates101with the same areas of the sensing surfaces103may be arranged adjacent to each other, which may further improve the regularity of the arrangement of the touch structure100.

In some embodiments, as shown inFIG.11, the length of the third edge1113bof the third irregular electrode plate111bis the same as a length of an edge of the first rectangular electrode plate124proximate to the third irregular electrode plate111b, and the length of the fourth edge1114bof the third irregular electrode plate111bis the same as a length of an edge of the second rectangular electrode plate125proximate to the third irregular electrode plate111b.

In this way, the regularity of the arrangement of the third irregular electrode plate111b, the first rectangular electrode plate124and the second rectangular electrode plate125may further be improved, thereby improving the processing convenience of the touch structure100.

In some examples, a length of an edge of the third square electrode plate126, a length of an edge of the first rectangular electrode plate124proximate to the third square electrode plate126, and a length of an edge of the second rectangular electrode plate125proximate to the third square electrode plate126are the same.

In some embodiments, the area of the sensing surface103of the third square electrode plate126is smaller than the area of the sensing surface103of the first rectangular electrode plate124. Moreover, the area of the sensing surface103of the third square electrode plate126is also smaller than the area of the sensing surface103of the second rectangular electrode plate125.

It can be understood that, the area of the sensing surface103of the third square electrode plate126being set to be smaller than both the area of the sensing surface103of the first rectangular electrode plate124and the area of the sensing surface103of the second rectangular electrode plate125may further reduce the area of the sensing surface103of the third square electrode plate126, thereby improving the accuracy of the touch position detected by the third square electrode plate126.

Moreover, the area of the sensing surface103of the third square electrode plate126being set to be smaller than both the area of the sensing surface103of the first rectangular electrode plate124and the area of the sensing surface103of the second rectangular electrode plate125may further make the areas of the sensing surfaces103of the plurality of second electrode plates120different, which may improve the flexibility of the touch structure100.

In some embodiments, the sensing surfaces103of the third square electrode plates126have the same areas. A ratio of an area of a sensing surface103of any of the first rectangular electrode plate124, the second rectangular electrode plate125and the third irregular electrode plate111bto the area of the sensing surface103of the third square electrode plate126is 1.2. Such setting causes the ratio of the areas of the sensing surfaces103of any two electrode plates101to be in the range of 0.6 to 1.5, which may further improve the uniformity of the electric signals output by the touch structure100.

In some embodiments, sensing surfaces103of at least part of the first electrode plates110have the same areas as sensing surfaces103of at least part of the second electrode plates120.

It can be seen from the above that, as shown inFIG.9, in some embodiments, the first electrode plate110may include third irregular electrode plates111b, fourth irregular electrode plates112band fifth irregular electrode plates113b, and the second electrode plates120are each in a shape of a square. In this way, the sensing surfaces103of at least part of the first electrode plates110have the same areas as the sensing surfaces103of at least part of the second electrode plates120, which may be that an area of a sensing surface103of any of the third irregular electrode plate111b, the fourth irregular electrode plate112band the fifth irregular electrode plate113bis the same as the area of the sensing surface103of the second electrode plate120(including the fifth square electrode plate131, the sixth square electrode plate132and the seventh square electrode plate133), which may further improve the accuracy and reliability of the touch structure100.

In some embodiments, as shown inFIG.9, the area of the sensing surface103of the fourth irregular electrode plate112b, the area of the sensing surface103of the fifth irregular electrode plate113band the area of the sensing surface103of the second electrode plate120are the same or approximately the same. The area of the sensing surface103of the third irregular electrode plate111bis smaller than the areas of the above three.

In some embodiments, a ratio of the area of the sensing surface103of the third irregular electrode plate111bto any of the area of the sensing surface103of the fourth irregular electrode plate112b, the area of the sensing surface103of the fifth irregular electrode plate113b, and the area of the sensing surface103of the second electrode plates120is 0.9.

In some other embodiments, as shown inFIG.11, the second electrode plates120may include first rectangular electrode plates124, second rectangular electrode plates125and third square electrode plates126. In this way, the sensing surfaces103of at least part of the first electrode plates110have the same areas as the sensing surfaces103of at least part of the second electrode plates120, which may be that an area of a sensing surface103of any of the third irregular electrode plate111b, the fourth irregular electrode plate112band the fifth irregular electrode plate113bis the same as an area of a sensing surface103of any of the first rectangular electrode plate124, the second rectangular electrode plate125and the third square electrode plate126.

In some embodiments, the area of the sensing surface103of the third irregular electrode plate111b, the area of the sensing surface103of the fourth irregular electrode plate112b, the area of the sensing surface103of the fifth irregular electrode plate113b, the area of the sensing surface103of the first rectangular electrode plate124and the area of the sensing surface103of the second rectangular electrode plate125are the same or approximately the same. The area of the sensing surface103of the third square electrode plate126is smaller than the area of the sensing surface103of any of the above.

In some embodiments, a ratio of an area of a sensing surface103of any of the third irregular electrode plate111b, the fourth irregular electrode plate112b, the fifth irregular electrode plate113b, the first rectangular electrode plate124and the second rectangular electrode plate125to the area of the sensing surface103of the third square electrode plate126is 1.2.

FIG.12is a structural diagram of yet another touch structure100in accordance with some embodiments.

In yet other embodiments, as shown inFIG.12, the plurality of first electrode plates110include sixth irregular electrode plates111c, seventh irregular electrode plates112cand eighth irregular electrode plates113c.

It can be understood that there may be a plurality of sixth irregular electrode plates111c, a plurality of seventh irregular electrode plates112cand a plurality of eighth irregular electrode plates113c. The shapes of the sixth irregular electrode plates111c, the seventh irregular electrode plates112cand the eighth irregular electrode plates113cmay be the same or different. The numbers of the sixth irregular electrode plates111c, the seventh irregular electrode plates112cand the eighth irregular electrode plates113cmay be the same or different. Areas of sensing surfaces103of the sixth irregular electrode plates111c, sensing surfaces103of the seventh irregular electrode plates112cand sensing surfaces103of the eighth irregular electrode plates113cmay be the same or different.

For example, as shown inFIG.12, the sixth irregular electrode plate111cincludes a third arc edge1110c, a first edge1111cand a second edge1112c. The third arc edge1110cis the designated edge1101of the sixth irregular electrode plate111c. In some embodiments, the third arc edge1110cmay be a circular arc.

The first edge1111cof the sixth irregular electrode plate111cis connected to an end of the third arc edge1110c, the second edge1112cof the sixth irregular electrode plate111cis connected to the other end of the third arc edge1110c, and the first edge1111cof the sixth irregular electrode plate111cis parallel to the second edge1112cof the sixth irregular electrode plate111c.

It can be understood that as shown inFIG.12, the sixth irregular electrode plate111cfurther includes a third edge1113c. An end of the first edge1111cof the sixth irregular electrode plate111caway from the third arc edge1110cis connected to an end of the third edge1113cof the sixth irregular electrode plate111c, and an end of the second edge1112cof the sixth irregular electrode plate111caway from the third arc edge1110cis connected to the other end of the third edge1113cof the sixth irregular electrode plate111c.

In this way, the third arc edge1110c, the first edge1111cof the sixth irregular electrode plate111c, the second edge1112cof the sixth irregular electrode plate111c, and the third edge1113cof the sixth irregular electrode plate111cmay form a closed sixth irregular electrode plate111c.

As shown inFIG.12, the seventh irregular electrode plate112cis provided adjacent to the first edge1111cof the sixth irregular electrode plate111c, and the eighth irregular electrode plate113cis provided adjacent to the second edge1112cof the sixth irregular electrode plate111c. In this way, by adjusting shapes or areas of the sixth irregular electrode plate111c, the seventh irregular electrode plate112c, the eighth irregular electrode plate113cand the second electrode plate120, the touch region102with a varying shape may be formed, thereby improving the flexibility of the touch structure100.

In some embodiments, as shown inFIG.12, each second electrode plate120is in a shape of a square. The plurality of sixth irregular electrode plates111c, the plurality of seventh irregular electrode plates112c, the plurality of eighth irregular electrode plates113cand the plurality of square second electrode plates120may form a circular touch region102. It can be understood that, by adjusting lengths of different edges of the sixth irregular electrode plates111c, the seventh irregular electrode plates112c, the eighth irregular electrode plates113cand the second electrode plates120, a diameter of the circular touch region102may be adjusted to improve the flexibility of the touch structure100.

For example, as shown inFIG.12, the plurality of second electrode plates120include eighth square electrode plates134, ninth square electrode plates135, tenth square electrode plates136and eleventh square electrode plates137. The eighth square electrode plates134are provided adjacent to the seventh irregular electrode plate112c, the ninth square electrode plate135is provided adjacent to the sixth irregular electrode plate111c, and the tenth square electrode plates136are provided adjacent to the eighth irregular electrode plate113c.

For example, there may be a plurality of eleventh square electrode plates137, and the plurality of eleventh square electrode plates137are arranged in an array. In some examples, the eleventh square electrode plates137include first sub-electrode plates1371and a second sub-electrode plate1372.

The first sub-electrode plates1371are provided adjacent to the eighth square electrode plate134, the ninth square electrode plate135and the tenth square electrode plate136, and the first sub-electrode plates1371are provided away from each irregular electrode plate (including the sixth irregular electrode plate111c, the seventh irregular electrode plate112cand the eighth irregular electrode plate113c).

The second sub-electrode plate1372is provided adjacent to the first sub-electrode plates1371and away from the eighth square electrode plates134, the ninth square electrode plates135and the tenth square electrode plates136. For example, the first sub-electrode plates1371surround the second sub-electrode plate1372.

In some embodiments, edges of the eighth square electrode plate134, the ninth square electrode plate135, the tenth square electrode plate136and the eleventh square electrode plate137(including the first sub-electrode plate1371and the second sub-electrode plate1372) have the same lengths.

A length of the third edge1113cof the sixth irregular electrode plate111cis the same as the length of the edge of the ninth square electrode plate135. A length of an edge of the seventh irregular electrode plate112cproximate to the eighth square electrode plates134is twice the length of the edge of the eighth square electrode plate134. A length of an edge of the eighth irregular electrode plate113cproximate to the tenth square electrode plates136is twice the length of the edge of the tenth square electrode plate136.

In some embodiments, as shown inFIG.12, there is an eleventh gap L11between the seventh irregular electrode plate112cand the first edge1111cof the sixth irregular electrode plate111c, and there is a twelfth gap L12between the eighth square electrode plate134and the ninth square electrode plate135. The eleventh gap L11and the twelfth gap L12are located on a same straight line.

There is a thirteenth gap L13between the eighth irregular electrode plate113cand the second edge1112cof the sixth irregular electrode plate111c, and there is a fourteenth gap L14between the ninth square electrode plate135and the tenth square electrode plate136. The thirteenth gap L13and the fourteenth gap L14are located on a same straight line, which may further improve the regularity of the structure of the touch structure100.

In some embodiments, as shown inFIG.12, there is a twentieth gap L20between two adjacent eleventh square electrode plates137. For example, there are a plurality of twentieth gaps L20, and at least two twentieth gaps L20are parallel to each other. A twentieth gap L20is located on a same straight line as the eleventh gap L11and the twelfth gap L12, and another twentieth gap L20is located on a same straight line as the thirteenth gap L13and the fourteenth gap L14.

It can be seen from the above that the area of the second electrode plate120is in the range of 10 mm2to 40 mm2, and the second electrode plate120is in the shape of the square. In some embodiments, a length of an edge of each second electrode plate120is in a range of 4 mm to 4.2 mm.

The length of the edge of each second electrode plate120is set to be in the range of 4 mm to 4.2 mm, so that the area of the sensing surface103of the second electrode plate120may satisfy the requirements on a basis of improving the regularity of the structure of the second electrode plate120, so as to prevent the area of the sensing surface103of the second electrode plate120from being too large or too small, thereby ensuring the reliability of the touch structure100.

Moreover, the length of the edge of each second electrode plate120is set to be in the range of 4 mm to 4.2 mm, so that the number of the second electrode plates120may increase on a premise that the area of the touch region102remains unchanged, thereby improving the accuracy of the touch position detected by the second electrode plates120, that is, improving the accuracy and reliability of the touch structure100.

For example, as shown inFIG.12, the number of the second electrode plates120is 25, and the number of the first electrode plates110is 12, that is, the number of channels of the touch structure100is 37.

In some embodiments, the length of the edge of the second electrode plate120is in a range of 4.05 mm to 4.15 mm or in a range of 4.15 mm to 4.2 mm. For example, the length of the edge of the second electrode plate120may be 4.05 mm, 4.1 mm, 4.12 mm or 4.17 mm.

In some embodiments, the areas of the sensing surfaces103of the plurality of second electrode plates120are the same, and the area of the sensing surface103of the sixth irregular electrode plate111c, the area of the sensing surface103of the seventh irregular electrode plate112c, and the area of the sensing surface103of the eighth irregular electrode plate113care all the same as the area of the sensing surface103of the second electrode plate120.

FIG.13is a structural diagram of yet another touch structure100in accordance with some embodiments. It can be seen from the above that, in some embodiments, an orthographic projection of the second electrode plate120on the virtual reference plane M is in a shape of a polygon. In some other embodiments, as shown inFIG.13, the first electrode plate110is in a range of a ring sector, and the second electrode plate120is in a range of a sector.

It can be understood that the ring sector is a part of a ring. A longer one of two arc edges of the ring sector is the designated edge1101of the first electrode plate110. In this way, the ring sector-shaped first electrode plates110and the sector-shaped second electrode plates120may form a circular touch region102, thereby improve the convenience of the arrangement of the first electrode plates110and the second electrode plates120.

In some embodiments, the area of the sensing surface103of the ring sector-shaped first electrode plate110is the same or approximately the same as the area of the sensing surface103of the sector-shaped second electrode plate120.

In some embodiments, as shown inFIG.13, there is a fifteenth gap L15between two adjacent ring sector-shaped first electrode plates110, and there is a sixteenth gap L16between two adjacent sector-shaped second electrode plates120. The fifteenth gap L15and the sixteenth gap L16are located on the same straight line, which may further improve the regularity of the structure of the touch structure100.

FIG.14is a structural diagram of yet another touch structure10in accordance with some embodiments. It can be seen from the above that, in some embodiments, the electrode plates101include a plurality of first electrode plates110and a plurality of second electrode plates120. In some other embodiments, as shown inFIG.14, the electrode plates101include a plurality of first electrode plates110, and the plurality of first electrode plates110are each in a shape of a sector.

It can be understood that the electrode plates101include the plurality of first electrode plates110, and the plurality of first electrode plates110are each in the shape of the sector, so that the convenience of the arrangement of the first electrode plates110may further be improved, and the structure of the plurality of electrode plates101may be simplified, which is convenient for the plurality of first electrode plates110to form a circular touch region102. In some embodiments, the sensing surfaces103of the plurality of first electrode plates110have the same areas.

In some embodiments, each electrode plate101has the same area.

It can be understood that the areas of all the electrode plates101may be completely the same, or may be approximately the same. Setting each electrode plate101to have the same area may further ensure the uniformity of electrical signals output by different electrode plates101, thereby improving the accuracy and reliability of the touch structure100.

In some embodiments, the plurality of electrode plates101are distributed centrally and symmetrically.

It can be understood that the plurality of electrode plates101are distributed centrally and symmetrically, so that the regularity of the arrangement of the plurality of electrode plates101may be improved, thereby improving the convenience of detecting the electrical signals output by the plurality of electrode plates101, and further ensuring the accuracy of the touch position detected by the touch structure100.

Moreover, the plurality of electrode plates101being distributed centrally symmetrically may also facilitate the arrangement of the plurality of electrode plates101, thereby further improving the production efficiency of the touch structure100and reducing the production cost of the touch structure100.

In some embodiments, the touch region102is circular.

It can be understood that arranging the touch region102as a circle enables the touch structure100to meet the use requirements of different touch display apparatuses200, thereby improving the applicability of the touch structure100.

FIG.15is a structural diagram of touch leads105in accordance with some embodiments.FIG.16is a structural diagram of other touch leads105in accordance with some embodiments.FIG.17is a structural diagram of yet another touch display apparatus in accordance with some embodiments. The touch leads105in some embodiments of the present disclosure will be described exemplarily below with reference toFIGS.15to17.

In some embodiments, as shown inFIG.15, the touch structure100further includes a plurality of touch leads105, and a touch lead105is electrically connected to an electrode plate101.

It can be understood that, the touch lead105is used to transmit an electrical signal. In some embodiments, the material of the touch lead105may be metal or other non-metallic conductors.

It can be seen from the above that the electrode plate101can convert the touch position into the electrical signal. In this way, the touch lead105is electrically connected to the electrode plate101, so that the electrical signal converted by the electrode plate101can be transmitted outside through the touch lead105, and thus the touch structure100may realize the position detection function.

In some embodiments, the touch lead105may also be electrically connected to a touch IC, so that the touch IC can obtain the electrical signal converted by the electrode plate101through the touch lead105.

In some embodiments, as shown inFIG.15, the plurality of touch leads105are led out to the outside of the touch region102along the gaps L between the plurality of electrode plates101.

It can be understood that the plurality of touch leads105are led out to the outside of the touch region102along the gaps L between the electrode plates101, not only may the influence of the touch leads105on the capacitance value of the electrode plates101be avoided, but also the images displayed on the display surface may be avoided being blocked by the touch leads105, thereby further improving the reliability of the touch structure100.

In some other embodiments, as shown inFIG.16, the touch structure100further includes an insulating layer106. It can be understood that, as shown inFIG.17, the insulating layer106is disposed on a side of the electrode plates101away from the substrate218.

In some embodiments, the insulating layer106may be made of an insulating material such as transparent resin, so as to prevent the insulating layer106from blocking the images displayed on the display surface.

The insulating layer106is located between the plurality of electrode plates101and the plurality of touch leads105. The insulating layer106is provided with a plurality of via holes107therein. It can be understood that the via holes107penetrate the insulating layer106in a direction perpendicular to the insulating layer106. A touch lead105is electrically connected to an electrode plate101through at least one via hole107. In this way, as shown inFIGS.16and17, the touch lead105can be led out to the outside of the touch region102through the via hole107.

By providing the insulating layer106, the insulating layer106may electrically isolate the touch leads105. Therefore, not only may the influence of the touch leads105on the capacitance value of the electrode plates101be avoided, but also the images displayed on the display surface may be avoided being blocked by the touch leads105, thereby further improving the reliability of the touch structure100.

In addition, providing the via holes107in the insulating layer106realizes the electrical connection between the touch lead105and the electrode plate101, and may also prevent the touch lead105from occupying the gap L between two adjacent electrode plates101, and thus the width of the gap L may further be reduced to improve the reliability of the touch structure100.

The foregoing descriptions are merely specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Changes or replacements that any person skilled in the art could conceive of within the technical scope of the present disclosure shall be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.