CN114265523A

CN114265523A - Capacitive touch screen, terminal equipment, touch detection method and touch detection device

Info

Publication number: CN114265523A
Application number: CN202010974057.7A
Authority: CN
Inventors: 刘皓
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-04-01
Anticipated expiration: 2040-09-16
Also published as: CN114265523B

Abstract

The disclosure relates to a capacitive touch screen, a touch detection method and device, a terminal device, an electronic device and a non-transitory computer-readable storage medium. Wherein, capacitive touch screen includes: a first capacitive layer and a second capacitive layer; the first capacitance layer includes: the device comprises a first block and a second block, wherein the first block and the second block are connected and alternately arranged in an array, the first block comprises a transmitting area, and the second block comprises a receiving area; the second capacitance layer includes: the third block and the fourth block are connected and alternately arranged in an array, the third block comprises an emitting area, and the fourth block comprises a receiving area; the first capacitor layer and the second capacitor layer are stacked up and down, the first block and the fourth block are correspondingly aligned, and the second block and the third block are correspondingly aligned. Through the capacitance signals between the plurality of transmitting areas and the receiving areas, the signal quantity is improved, misjudgment of liquid is avoided, the signal to noise ratio is improved, and the accuracy and the reliability of the signals are guaranteed.

Description

Capacitive touch screen, terminal equipment, touch detection method and touch detection device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a capacitive touch screen, a terminal device, a touch detection method, a touch detection apparatus, an electronic device, and a non-transitory computer-readable storage medium.

Background

At present, for the convenience of user operation and control and the improvement of screen occupation ratio of a display screen on terminal equipment such as mobile phones and tablet computers, more terminal equipment adopts touch screens, and the terminal equipment is operated and controlled through the touch of a user.

Capacitive touch screens are currently mainly classified into self-capacitance type and mutual capacitance type. The self-contained touch screen is high in cost and high in liquid misrecognition rate; the mutual capacitance touch screen has low SIGNAL quantity, low SIGNAL-to-NOISE RATIO (SNR), and insufficient accuracy and reliability.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a capacitive touch screen, a touch detection method, a touch detection apparatus, a terminal device, an electronic device, and a non-transitory computer-readable storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a capacitive touch screen comprising a first capacitive layer and a second capacitive layer; wherein the first capacitive layer comprises: the device comprises a first block and a second block, wherein the first block and the second block are connected and alternately arranged in an array, the first block comprises a transmitting area, and the second block comprises a receiving area; the second capacitive layer includes: the antenna comprises a third block and a fourth block, wherein the third block and the fourth block are connected and alternately arranged in an array, the third block comprises a transmitting area, and the fourth block comprises a receiving area; the first capacitor layer and the second capacitor layer are stacked up and down, the first block is aligned with the fourth block correspondingly, and the second block is aligned with the third block correspondingly.

In one embodiment, the transmission area of the first block is located at the center of the first block; the first block further comprises: a receiving area arranged around the transmitting area; the receiving area of the second block is positioned in the center of the second block; the second block further comprises: a transmitting area arranged around the receiving area; the transmitting area of the third block is positioned in the center of the third block; the third block further comprises: a receiving area arranged around the transmitting area; the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting region disposed around the receiving region.

In one embodiment, the capacitive touch screen further comprises: the integrated circuit is arranged at the bottom end of the capacitive touch screen; a plurality of first longitudinal conductive lines, each of which is connected to all of the emission regions of each column in the array arrangement of the first capacitor layer and is connected to the integrated circuit; a plurality of first lateral conductors, each of the first lateral conductors being connected to all receiving areas of each row in the array arrangement of the first capacitor layer, and being connected to the integrated circuit; a plurality of second vertical wires, each of which is connected to all the emitting areas of each column in the array arrangement of the second capacitor layer and connected to the integrated circuit; and each second transverse wire is respectively connected with all receiving areas of each row in the array arrangement of the second capacitor layer and is connected with the integrated circuit.

In one embodiment, the capacitive touch screen further comprises: a fan-out region; the first capacitor layer and the second capacitor layer are connected with each other in the fan-out area by laminating a first longitudinal conducting wire and a second longitudinal conducting wire corresponding to one column, and are connected with the integrated circuit through a transmitting connecting conducting wire; the first capacitor layer and the second capacitor layer are stacked and are communicated with a first transverse conducting wire and a second transverse conducting wire corresponding to one row in the fan-out area, and the first capacitor layer and the second capacitor layer are connected to the integrated circuit through a receiving connecting conducting wire.

In one embodiment, the capacitive touch screen further comprises: the source drain layer, the gate layer, the first capacitor layer and the second capacitor layer are stacked; the first longitudinal conducting wire and the second longitudinal conducting wire are arranged on the source drain layer; the first transverse conducting wire and the second transverse conducting wire are arranged on the grid layer.

According to a second aspect of the embodiments of the present disclosure, there is provided a terminal device, the terminal device including: a capacitive touch screen as described in the first aspect.

According to a third aspect of the embodiments of the present disclosure, a touch detection method is provided, which is applied to the capacitive touch screen according to the first aspect; the touch detection method comprises the following steps: acquiring capacitance information; determining touch information based on the capacitance information.

In one embodiment, the acquiring capacitance information includes: acquiring capacitance information between adjacent first and second blocks; acquiring capacitance information between the adjacent third block and fourth block; acquiring capacitance information between a transmitting area of the first block and a receiving area of the fourth block which is aligned in a stacked mode; capacitance information between the receiving area of the second block and the transmitting area of the third block in alignment with the stack is acquired.

In one embodiment, the transmission area of the first block is located at the center of the first block; the first block further comprises: a receiving area arranged around the transmitting area; the receiving area of the second block is positioned in the center of the second block; the second block further comprises: a transmitting area arranged around the receiving area; the transmitting area of the third block is positioned in the center of the third block; the third block further comprises: a receiving area arranged around the transmitting area; the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting area arranged around the receiving area; the acquiring capacitance information further comprises: acquiring capacitance information between a receiving area of the first block and a transmitting area of the fourth block which is aligned in a stacked mode; capacitance information between the transmitting area of the second block and the receiving area of the third block in alignment with the stack is acquired.

In an embodiment, the acquiring capacitance information further includes: acquiring capacitance information between a transmitting area and a receiving area of a first block; acquiring capacitance information between a transmitting area and a receiving area of the second block; acquiring capacitance information between a transmitting area and a receiving area of a third block; capacitance information between the transmitting area and the receiving area of the fourth block is acquired.

According to a fourth aspect of the embodiments of the present disclosure, a touch detection device is provided, which is applied to the capacitive touch screen of the first aspect; the device comprises: the acquisition module is used for acquiring capacitance information; and the processing module is used for determining touch information based on the capacitance information.

In an embodiment, the obtaining module is further configured to: acquiring capacitance information between adjacent first and second blocks; acquiring capacitance information between the adjacent third block and fourth block; acquiring capacitance information between a transmitting area of the first block and a receiving area of the fourth block which is aligned in a stacked mode; capacitance information between the receiving area of the second block and the transmitting area of the third block in alignment with the stack is acquired.

In one embodiment, the transmission area of the first block is located at the center of the first block; the first block further comprises: a receiving area arranged around the transmitting area; the receiving area of the second block is positioned in the center of the second block; the second block further comprises: a transmitting area arranged around the receiving area; the transmitting area of the third block is positioned in the center of the third block; the third block further comprises: a receiving area arranged around the transmitting area; the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting area arranged around the receiving area; the acquisition module is further configured to: acquiring capacitance information between a receiving area of the first block and a transmitting area of the fourth block which is aligned in a stacked mode; capacitance information between the transmitting area of the second block and the receiving area of the third block in alignment with the stack is acquired.

In an embodiment, the obtaining module is further configured to: acquiring capacitance information between a transmitting area and a receiving area of a first block; acquiring capacitance information between a transmitting area and a receiving area of the second block; acquiring capacitance information between a transmitting area and a receiving area of a third block; capacitance information between the transmitting area and the receiving area of the fourth block is acquired.

According to a fifth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: the touch detection method according to the third aspect is performed.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium storing instructions which, when executed by a processor, perform the touch detection method according to the third aspect.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the capacitance signals between the plurality of transmitting areas and the receiving areas in the first capacitance layer and the second capacitance layer, the signal quantity is improved, meanwhile, the effect of avoiding liquid misjudgment is achieved, the signal to noise ratio is improved, and the accuracy and the reliability of the signals are guaranteed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of a self-contained touch screen according to a related art.

Fig. 2 is a schematic structural diagram of a mutual-capacitive touch screen according to a related art.

Fig. 3 is a schematic diagram illustrating a capacitive touch screen according to an exemplary embodiment of the present disclosure.

Fig. 4A is a schematic structural diagram illustrating a first capacitive layer of a capacitive touch screen according to an exemplary embodiment of the present disclosure.

Fig. 4B is a schematic structural diagram illustrating a second capacitive layer of a capacitive touch screen, which is stacked corresponding to the first capacitive layer in fig. 4A, according to an exemplary embodiment of the present disclosure.

Fig. 5A is a schematic diagram illustrating a structure of a first capacitive layer of another capacitive touch screen according to an exemplary embodiment of the present disclosure.

Fig. 5B is a schematic structural diagram illustrating a second capacitive layer of a capacitive touch screen, which is stacked corresponding to the first capacitive layer in fig. 5A, according to an exemplary embodiment of the present disclosure.

FIG. 6 is a schematic structural diagram illustrating another expanded representation of a capacitive touch screen according to an exemplary embodiment of the present disclosure.

Fig. 7 is a schematic diagram illustrating another capacitive touch screen according to an exemplary embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a terminal device according to another exemplary embodiment of the present disclosure.

Fig. 9 is a flowchart illustrating a touch detection method according to an exemplary embodiment of the present disclosure.

Fig. 10 is a schematic diagram illustrating an equivalent circuit of a capacitive touch screen according to another exemplary embodiment of the present disclosure.

Fig. 11 is a schematic block diagram illustrating a touch detection device according to another exemplary embodiment of the present disclosure.

FIG. 12 is a block diagram illustrating an apparatus in accordance with an example embodiment.

FIG. 13 is a block diagram illustrating an apparatus in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

At present, a self-capacitance touch screen and a mutual capacitance touch screen are mainly used in a capacitive touch screen.

Fig. 1 schematically illustrates a schematic diagram of a self-contained touch screen, and in some related arts, as shown in fig. 1, a touch sensing area of a display screen of a self-contained touch screen 10 may include a plurality of blocks 11, and each block 11 is formed as a channel (channel) and arranged in an array. For example, 576 channels may be included and arranged in an array of 18 x 32. Each block 11 needs to be connected to an Integrated Circuit (IC) 13 through a wire 12. Therefore, in the solution of the self-contained touch screen 10, the size of the integrated circuit 13 needs to be larger to ensure the connection of the conductive lines 12 of each channel, and at the same time, the conductive angle of the fan-out (fan-out) area 14 formed by the conductive lines 12 is larger due to the angle of the channel, which may affect the frame design of the touch screen. Meanwhile, in the self-contained touch screen 10, when a human body touches the screen, the control information is determined according to the capacitance change, and since the self-contained touch screen 10 is detected in a manner that one end of the capacitor is grounded, the liquid misidentification rate is high, that is, when water or other liquid exists on the surface of the screen, the capacitance value changes, and misjudgment is caused.

Fig. 2 schematically shows a schematic diagram of a mutual capacitance touch screen, and in some related arts, as shown in fig. 2, the mutual capacitance touch screen 20 may include two layers, TX and RX: a Transmit (TX) layer 21 and a Receive (RX) layer 22. The emission layer 21 includes a plurality of emission regions 211 arranged laterally side by side, and each emission region 211 is a channel. The receiving layer 22 is disposed in a stacked alignment with the transmitting layer 21, and includes a plurality of receiving regions 221 arranged in parallel in the longitudinal direction, and each receiving region 221 serves as a channel. Since the emitting region 211 and the receiving region 221 are both arranged in a strip shape and are respectively distributed longitudinally and transversely, the overlapping region of each emitting region 211 and each receiving region 221 forms a capacitance sensing region. Taking 18 × 32 as an example, that is, there are 18 receiving areas 221 arranged in parallel in the longitudinal direction and 32 emitting areas 211 arranged in parallel in the transverse direction, 576 overlapping areas are formed, so that the mutual capacitance value of each overlapping area is obtained by the mutual capacitance value of the mutual capacitance type touch screen 20 to determine the touch signal, and the mutual capacitance value is low, the signal quantity difference is low, the signal-to-noise ratio is low, and the accuracy and the reliability are insufficient.

In order to solve the above technical problem, the present disclosure provides a capacitive touch screen 30, which increases the signal amount, improves the touch accuracy, and reduces the size of an integrated circuit.

As shown in fig. 3, the capacitive touch screen 30 of the embodiment of the disclosure at least includes a first capacitive layer 31 and a second capacitive layer 32, where the first capacitive layer 31 and the second capacitive layer 32 are stacked up and down, and the transmitting area and the receiving area disposed on the first capacitive layer 31 and the second capacitive layer 32 can form a capacitance value.

In order to be able to visually demonstrate the capacitive touch screen 30 design of the present disclosure, the arrangement of the first capacitive layer 31 is shown by fig. 4A, and the arrangement of the second capacitive layer 32 is shown by fig. 4B, respectively. As shown in fig. 4A, the first capacitance layer 31 includes: a first block 311 and a second block 312, wherein the first block 311 and the second block 312 are connected and alternately arranged in an array, the first block 311 includes a Transmission (TX) region 40, the second block 312 includes a Reception (RX) region 50, the transmission region 40 is marked by a single oblique line for visual display, and the reception region 50 is indicated by a cross line. As shown in fig. 4A, the first blocks 311 and the second blocks 312 have the same size, and may be arranged in an array of 18 × 32. The first blocks 311 and the second blocks 312 are alternately arranged, that is, the periphery of each first block 311 is only adjacent to the second block 312, and the periphery of each second block 312 is also only adjacent to the first block 311. As shown in fig. 4B, the second capacitor layer 32 is disposed by using the same principle, and the second capacitor layer 32 includes: the third block 321 and the fourth block 322, wherein the third block 321 and the fourth block 322 are connected and alternately arranged in an array, the third block 321 includes the transmitting area 40, and the fourth block includes the receiving area 50. The third blocks 321 and the fourth blocks 322 are also arranged in an array, and the first blocks 311 and the second blocks 312 disposed in the first capacitor layer 31 are correspondingly disposed. The first capacitor layer 31 and the second capacitor layer 32 are stacked up and down, the first block 311 is aligned with the fourth block 322, and the second block 312 is aligned with the third block 321.

Meanwhile, the above-mentioned embodiment is arranged in such a way that the overlapping regions of the first capacitor layer 31 and the second capacitor layer 32 are both the transmitting region 40 and the receiving region 50 aligned, so that a mutual capacitance signal can be generated between the two. The first block 311, the second block 312, the third block 321, and the fourth block 322 have the same size, and may be all square, and the size of a single block is the size of the overlapping area. The size of the array can be determined according to the size of the actual capacitive touch screen 30 and the number of array arrangements. The overlapping regions formed by the first capacitance layer 31 and the second capacitance layer 32 overlapped by the upper and lower layers, that is, the overlapping regions formed by the first block 311 and the fourth block 322, or the overlapping regions formed by the second block 312 and the third block 321, may be the same as the size of the overlapping sensing region formed by the conventional mutual capacitance touch screen.

Since different blocks in each layer are alternately arranged, and adjacent blocks are adjacent to each other at the transmitting area 40 and the receiving area 50, respectively, so that a capacitance value can be generated between every two adjacent first blocks 311 and second blocks 312 in the first capacitance layer 31, and similarly, a capacitance value can be generated between every two adjacent third blocks 321 and fourth blocks 322 in the second capacitance layer 32. Compared with the self-capacitance type arrangement, the channel number can be saved, the size of an integrated circuit is reduced, and the problem of misidentification caused by water or other liquid on the surface of a screen is avoided due to the adoption of a TX/RX capacitance mode.

In one embodiment, as shown in fig. 5A, 5B, each section of the layers of the capacitive touch screen 30 may itself include a transmit area 40 and a receive area 50. Specifically, in the present embodiment, the transmission area 40 of the first block 311 is located at the center of the first block 311; the first block 311 further includes: a receiving area 50 disposed around the transmitting area 40; the receiving area 50 of the second block 312 is located at the center of the second block 312; the second block 312 further includes: a transmitting area 40 disposed around the receiving area 50; the emission region 40 of the third block 321 is located at the center of the third block 321; the third block 321 further includes: a receiving area 50 disposed around the transmitting area 40; the receiving area 50 of the fourth block 322 is located at the center of the fourth block 322; the fourth block 322 further includes: a transmission area 40 disposed around the reception area 50. In this embodiment, the shape of the transmitting area 40 or the receiving area 50 located at the center of each block may be a square, or may be other shapes such as a circle. The transmitting region 40 or the receiving region 50 at the central position of each block has the same shape, area and position, so that when the first capacitance layer 31 and the second capacitance layer 32 are overlapped, the transmitting region 40 of each layer can be overlapped and aligned with the receiving region 50 of the other layer.

With the arrangement of the above embodiment, in each block of each layer, the transmitting area 40 and the receiving area 50 are respectively arranged, so that each block can generate a capacitance signal by itself. For example, between the emitting area 40 in each first block 311 and the receiving area 50 around the emitting area 40 disposed in the first block 311, there is an obtainable mutual capacitance value. The quantity of capacitance values which can be obtained in a large quantity is increased, so that the signal to noise ratio is improved, and the accuracy of touch detection is improved.

In an embodiment, as shown in fig. 4A and 4B, or as shown in fig. 5A and 5B, the capacitive touch screen 30 further includes: the integrated circuit 33 is arranged at the bottom end of the capacitive touch screen 30; the integrated circuits 33 in fig. 4A, 4B are actually the same component, and are shown in both figures for ease of identification. The integrated circuit 33 is generally disposed at the bottom end of the capacitive touch screen 30, generally disposed at the outer side of the touch display area, and may be connected to the conductive lines through a Chip On Film (COF) so as to be connected to the channels formed by the transmitting areas 40 and the receiving areas 50. The capacitive touch screen 30 further includes: a plurality of first vertical conductive lines 313, each first vertical conductive line 313 being connected to all the emitting regions 40 of each column in the array arrangement of the first capacitor layer 31, and connected to the integrated circuit 33; a plurality of first lateral conductive lines 314, each first lateral conductive line 314 being connected to all receiving areas 50 of each row in the array arrangement of the first capacitor layer 31, and connected to the integrated circuit 33; a plurality of second vertical conductive lines 323, each second vertical conductive line 323 being connected to all the emitting regions 40 of each column in the array arrangement of the second capacitor layer 32, and being connected to the integrated circuit 33; a plurality of second lateral conductive lines 324, each second lateral conductive line 324 being connected to all receiving areas 50 of each row of the array arrangement of the second capacitor layer 32 and to the integrated circuit 33.

The longitudinal direction generally refers to the length direction of the capacitive touch screen, and is also the extending direction from the top end to the bottom end of terminal equipment such as a mobile phone in conventional use, such as the up-down direction in fig. 4A and 4B; the horizontal direction generally refers to a width direction of the capacitive touch screen, and is also a left-right width direction of a terminal device such as a mobile phone in normal use, such as the left-right direction in fig. 4A and 4B.

In this embodiment, the transmitting regions 40 and the receiving regions 50 in the same layer are arranged in an array and are spaced apart from each other, and the same regions belonging to the same column or the same row are conductively connected through a longitudinal or transverse conductive line to form a channel and connected to the integrated circuit 33, thereby achieving electrical connection and obtaining a capacitance signal. In the first capacitor layer 31, as shown in fig. 4A, 5A, the emission regions 40 arranged in a column are connected in sequence by the first longitudinal conductive line 313 extending longitudinally, and are connected to the integrated circuit 33. The same number of first longitudinal conductive lines 313 are correspondingly disposed corresponding to the number of columns arranged in the array. At the same time, the receiving areas 50 arranged in a row are connected in turn by means of transversely extending first transverse wires 314, and are connected to the integrated circuit 33, likewise with the same number of first transverse wires 314 being arranged correspondingly to the number of rows of the array arrangement. Since the integrated circuit 33 is generally disposed at the bottom of the touch screen, the laterally disposed conductive lines may be respectively connected to the integrated circuit 33 through the corresponding longitudinally disposed conductive lines, specifically, as shown in fig. 4A and 4B, or as shown in fig. 5A and 5B, each of the first lateral conductive lines 314 may be respectively connected to the integrated circuit 33 through a longitudinally disposed first connection line 3141, and each of the second lateral conductive lines 324 may be respectively connected to the integrated circuit 33 through a longitudinally disposed second connection line 3241. As shown in fig. 4B and 5B, in the second capacitor layer 32, the via connection integrated circuit 33 is formed by the second vertical conductive line 323 and the second horizontal conductive line 324 in the same manner as the first capacitor layer 31. Also, in this embodiment, the vertical wires for connecting the first and second

horizontal wires

314 and 324 to the integrated circuit 33 may be disposed at any position of the touch screen, so as to avoid interference with each other and with the first and second

vertical wires

313 and 323 extending in the same vertical direction, and in a specific embodiment, the vertical direction is oriented, i.e., the first and

second connection wires

3141 and 3241 are distributed near the left and right sides of the touch screen 30, so as to improve the display quality.

In an embodiment, as shown in fig. 4A, 4B, 5A, 5B and 6, the capacitive touch screen 30 further includes: a fan-out region 34; the fan-out region 34 is a region formed by leading out wires from the touch display region of the capacitive touch screen 30 to the integrated circuit 33. Moreover, the fan-out region 34 in fig. 4A and fig. 4B is actually the same region, and for convenience of illustration, it is respectively marked in the two figures, and the same is as in fig. 5A and fig. 5B. In the present embodiment, fig. 6 exemplarily expands the first capacitor layer 31 and the second capacitor layer 32 and shows them in one figure, as shown in fig. 6, the first capacitor layer 31 and the second capacitor layer 32 are stacked with the first longitudinal conductive line 313 and the second longitudinal conductive line 323 corresponding to one column in the fan-out region 34 and connected to the integrated circuit 33 through one transmission connecting conductive line 35; the first and second

lateral wires

314 and 324 of the first and second capacitor layers 31 and 32, which overlap corresponding to a row, communicate in the fan-out region 34, i.e., communicate in the fan-out region 34 through the corresponding first and

second connection lines

3141 and 3241, and are connected to the integrated circuit 33 through one receiving connection wire 36.

In this embodiment, in the same column where the first capacitor layer 31 and the second capacitor layer 32 overlap, the first longitudinal conductive line 313 connecting all the emitting areas 40 of the column of the first capacitor layer 31 and the second longitudinal conductive line 323 connecting all the emitting areas 40 of the column of the second capacitor layer 32 may be connected in the fan-out area 34 to form a channel (channel), which may be connected by a conductive line in a perforation by means of a perforation, and connected to the integrated circuit 33 by a transmission connecting conductive line 35. Similarly, in the same row where the first capacitor layer 31 and the second capacitor layer 32 overlap, the first and second

lateral wires

314 and 324 corresponding to the same row are connected in the fan-out region 34 via the first and

second connection lines

3141 and 3241 to form a channel, and are connected to the integrated circuit via a connection wire 36. The first capacitor layer 31 and the second capacitor layer 32 are connected corresponding to the same type of areas in the same row and the same column, so that the number of channels is reduced by half, and is consistent with the number of channels of a traditional mutual capacitance touch screen under the condition that the sizes of overlapped blocks are inconvenient.

In one embodiment, as shown in fig. 7, the capacitive touch screen 30 further includes: the Source/Drain layer 37(Source/Drain layer, S/D layer) and the Gate layer 38(Gate layer, G layer), and the Source/Drain layer 37, the Gate layer 38, the first capacitor layer 31, and the second capacitor layer 32 are stacked. As shown in fig. 7, a possible stacking manner may be, from top to bottom, the second capacitor layer 32, the first capacitor layer 31, the gate layer 38, and the source/drain layer 37. In this embodiment, the first vertical conductive line 313 and the second vertical conductive line 323 are disposed on the source drain layer 37; the first lateral conductive line 314 and the second lateral conductive line 324 are disposed on the gate layer 38. By means of the embodiment, wires for connecting the transmitting area 40 or the receiving area 50 to form a channel can be arranged in the capacitive touch screen 30 without adding an additional layer for routing, so that the overall thickness of the capacitive touch screen 30 does not need to be increased. Since the lines are arranged in both the source drain layer 37 and the gate layer 38, the lines in the source drain layer 37 are arranged longitudinally, the lines in the gate layer 38 are arranged transversely, and the first longitudinal conductive line 313 and the second longitudinal conductive line 323 which extend longitudinally in the same manner are disposed in the source drain layer 37, so as to avoid mutual interference between the lines, and similarly, the first transverse conductive line 314 and the second transverse conductive line 324 which extend transversely in the same manner are disposed in the gate layer 38. Also, in some of the foregoing embodiments, the first and second longitudinal

conductive lines

313 and 323 extending in the longitudinal direction may also be disposed on the source drain layer 37.

Based on the same concept, as shown in fig. 8, the present disclosure also provides a terminal device 60. The terminal device 60 of the present disclosure includes the capacitive touch screen 30 of any one of the foregoing embodiments. The terminal device 60 of the embodiment of the present disclosure can improve the signal amount through the setting of the capacitive touch screen 30, and meanwhile, has the effect of avoiding the liquid misjudgment, improves the signal-to-noise ratio, and ensures the accuracy and reliability of the signal.

Based on the same concept, the embodiment of the present disclosure further provides a touch detection method 70 applied to the capacitive touch screen 30 in any of the foregoing embodiments, as shown in fig. 9, the touch detection method 70 includes: step S71, acquiring capacitance information; in step S72, touch information is determined based on the capacitance information. By using the capacitive touch screen 30 according to any of the embodiments, a large amount of capacitance information can be acquired, so that the accuracy of touch information is improved.

In one embodiment, the step S71 of acquiring the capacitance information may include: acquiring capacitance information between adjacent first and

second blocks

311 and 312; acquiring capacitance information between the adjacent third and

fourth blocks

321 and 322; acquiring capacitance information between the transmitting area 40 of the first block 311 and the receiving area 50 of the fourth block 322 in alignment in a lamination; capacitance information between the receiving area 50 of the second block 312 and the transmitting area 40 of the third block 321 in alignment with the stack is acquired. Compared with the traditional mutual capacitance touch screen, the information of the capacitance in the same layer is increased, so that the accuracy of the touch information is improved.

In an embodiment, corresponding to an embodiment in which each tile of the capacitive touch screen 30 itself includes the transmitting area 40 and the receiving area 50, the step S71 of acquiring the capacitance information may further include: acquiring capacitance information between the receiving area 50 of the first block 311 and the transmitting area 40 of the fourth block 322 which is aligned in a stacked manner; capacitance information between the transmitting area 40 of the second block 312 and the receiving area 50 of the third block 321 in alignment with the stack is acquired. Since each block itself comprises a transmitting area 40 and a receiving area 50, two capacitance values can be generated in one block aligned in a stack, further increasing the number of capacitance values.

In a further embodiment, also corresponding to the embodiment in which each of the sectors of the capacitive touch screen 30 itself includes the transmitting area 40 and the receiving area 50, the step S71 of acquiring the capacitance information may further include: acquiring capacitance information between the transmitting area 40 and the receiving area 50 of the first block 311; acquiring capacitance information between the transmitting area 40 and the receiving area 50 of the second block 312; acquiring capacitance information between the transmission area 40 and the reception area 50 of the third block 321; capacitance information between the transmission area 40 and the reception area 50 of the fourth block 322 is acquired. Furthermore, since each block itself includes the transmitting area 40 and the receiving area 50, a capacitance value formed by a fringe electric field between the transmitting area 40 and the receiving area 50 of each block itself can be obtained, so that the number of capacitance values is further increased, and the accuracy and reliability of touch control are enhanced.

Fig. 10 shows an equivalent circuit schematic diagram of a corresponding stacked block of the capacitive touch screen 30 according to the embodiment of the disclosure. As shown in fig. 10, a first block 311 and a fourth block 322 corresponding to the first block are taken as an example for illustration. The capacitance C1 is the capacitance formed by the fringe electric field between the transmitting area 40 and the receiving area 50 of the first block 311 itself; the capacitance C2 is a capacitance formed by a fringe electric field between the receiving region 50 and the transmitting region 40 of the fourth block 322 itself corresponding to the first block 311 in a stacked manner; the capacitance C3 is the capacitance formed by the fringe electric field between the receiving area 50 of the first block 311 and the emitting area 40 of the second block 312 (not shown) adjacent to the first capacitance layer 31; the capacitance C4 is the capacitance formed by the fringe electric field between the transmitting region 40 of the fourth block 322 and the receiving region 50 of the third block 321 (not shown) adjacent to the second capacitance layer 32; the capacitance C5 is a capacitance formed by a central electric field between the transmission region 40 of the first block 311 and the reception region 50 of the laminated corresponding fourth block 322; the capacitance C6 is a capacitance formed by a central electric field between the receiving area 50 of the first block 311 and the transmitting area 40 of the laminated corresponding fourth block 322. Wherein, can also include: the capacitor C7 is other mutual capacitors such as metal wires; a capacitance C8, which is the capacitance of the channel of the emission area 40; the capacitance C9 is the capacitance of the channel of the receiving area 50. And, can also obtain the information of the resistance, including: a resistance R1, which is the resistance of the channel of the emission area 40; the resistance R2 is the resistance of the channel of the receiving area 50. As can be seen from the above description of the equivalent capacitance resistance, the capacitive touch screen 30 provided in this embodiment can have more capacitances than the conventional mutual capacitance or self-capacitance method, so as to effectively improve the problem of low mutual capacitance signal amount and optimize the mutual capacitance effect.

Fig. 11 is a block diagram illustrating a touch detection device according to an exemplary embodiment. Referring to fig. 11, the touch detection device 700 is applied to the capacitive touch screen 30 of any of the foregoing embodiments. The touch detection device 700 includes: an obtaining module 710, configured to obtain capacitance information; and a processing module 720, configured to determine touch information based on the capacitance information.

In an embodiment, the obtaining module 710 is further configured to: acquiring capacitance information between adjacent first and second blocks; acquiring capacitance information between the adjacent third block and fourth block; acquiring capacitance information between a transmitting area of the first block and a receiving area of the fourth block which is aligned in a stacked mode; capacitance information between the receiving area of the second block and the transmitting area of the third block in alignment with the stack is acquired.

In one embodiment, the transmission area of the first block is located at the center of the first block; the first block further comprises: a receiving area arranged around the transmitting area; the receiving area of the second block is positioned in the center of the second block; the second block further comprises: a transmitting area arranged around the receiving area; the transmitting area of the third block is positioned in the center of the third block; the third block further comprises: a receiving area arranged around the transmitting area; the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting area arranged around the receiving area; the obtaining module 710 is further configured to: acquiring capacitance information between a receiving area of the first block and a transmitting area of the fourth block which is aligned in a stacked mode; capacitance information between the transmitting area of the second block and the receiving area of the third block in alignment with the stack is acquired.

In an embodiment, the obtaining module 710 is further configured to: acquiring capacitance information between a transmitting area and a receiving area of a first block; acquiring capacitance information between a transmitting area and a receiving area of the second block; acquiring capacitance information between a transmitting area and a receiving area of a third block; capacitance information between the transmitting area and the receiving area of the fourth block is acquired.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 12 is a block diagram illustrating an apparatus 800 for touch detection according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 12, the apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communications component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power component 806 provides power to the various components of device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Fig. 13 is a block diagram illustrating an apparatus 1100 for touch detection according to an example embodiment. For example, the apparatus 1100 may be provided as a server. Referring to fig. 13, the apparatus 1100 includes a processing component 1122 that further includes one or more processors and memory resources, represented by memory 1132, for storing instructions, such as application programs, executable by the processing component 1122. The application programs stored in memory 1132 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1122 is configured to execute instructions to perform the above-described method.

The apparatus 1100 may also include a power component 1126 configured to perform power management of the apparatus 1100, a wired or wireless network interface 1150 configured to connect the apparatus 1100 to a network, and an input/output (I/O) interface 1158. The apparatus 1100 may operate based on an operating system stored in the memory 1132, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A capacitive touch screen is characterized by comprising a first capacitive layer and a second capacitive layer; wherein the content of the first and second substances,

the first capacitive layer includes: the device comprises a first block and a second block, wherein the first block and the second block are connected and alternately arranged in an array, the first block comprises a transmitting area, and the second block comprises a receiving area;

the second capacitive layer includes: the antenna comprises a third block and a fourth block, wherein the third block and the fourth block are connected and alternately arranged in an array, the third block comprises a transmitting area, and the fourth block comprises a receiving area;

the first capacitor layer and the second capacitor layer are stacked up and down, the first block is aligned with the fourth block correspondingly, and the second block is aligned with the third block correspondingly.

2. A capacitive touch screen according to claim 1,

the transmitting area of the first block is positioned in the center of the first block; the first block further comprises: a receiving area arranged around the transmitting area;

the receiving area of the second block is positioned in the center of the second block; the second block further comprises: a transmitting area arranged around the receiving area;

the transmitting area of the third block is positioned in the center of the third block; the third block further comprises: a receiving area arranged around the transmitting area;

the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting region disposed around the receiving region.

3. A capacitive touch screen according to claim 1 or 2, further comprising:

the integrated circuit is arranged at the bottom end of the capacitive touch screen;

a plurality of first longitudinal conductive lines, each of which is connected to all of the emission regions of each column in the array arrangement of the first capacitor layer and is connected to the integrated circuit;

a plurality of first lateral conductors, each of the first lateral conductors being connected to all receiving areas of each row in the array arrangement of the first capacitor layer, and being connected to the integrated circuit;

a plurality of second vertical wires, each of which is connected to all the emitting areas of each column in the array arrangement of the second capacitor layer and connected to the integrated circuit;

and each second transverse wire is respectively connected with all receiving areas of each row in the array arrangement of the second capacitor layer and is connected with the integrated circuit.

4. A capacitive touch screen according to claim 3, further comprising: a fan-out region;

the first capacitor layer and the second capacitor layer are connected with each other in the fan-out area by laminating a first longitudinal conducting wire and a second longitudinal conducting wire corresponding to one column, and are connected with the integrated circuit through a transmitting connecting conducting wire;

the first capacitor layer and the second capacitor layer are stacked and are communicated with a first transverse conducting wire and a second transverse conducting wire corresponding to one row in the fan-out area, and the first capacitor layer and the second capacitor layer are connected to the integrated circuit through a receiving connecting conducting wire.

5. A capacitive touch screen according to claim 3, further comprising: the source drain layer, the gate layer, the first capacitor layer and the second capacitor layer are stacked;

the first longitudinal conducting wire and the second longitudinal conducting wire are arranged on the source drain layer;

the first transverse conducting wire and the second transverse conducting wire are arranged on the grid layer.

6. A terminal device, characterized in that the terminal device comprises: a capacitive touch screen according to any one of claims 1 to 5.

7. A touch detection method, applied to the capacitive touch screen according to any one of claims 1 to 5; the method comprises the following steps:

acquiring capacitance information;

determining touch information based on the capacitance information.

8. The touch detection method of claim 7, wherein the obtaining capacitance information comprises:

acquiring capacitance information between adjacent first and second blocks;

acquiring capacitance information between the adjacent third block and fourth block;

acquiring capacitance information between a transmitting area of the first block and a receiving area of the fourth block which is aligned in a stacked mode;

capacitance information between the receiving area of the second block and the transmitting area of the third block in alignment with the stack is acquired.

9. The touch detection method of claim 8,

the receiving area of the fourth block is positioned in the center of the fourth block; the fourth block further comprises: a transmitting area arranged around the receiving area;

the acquiring capacitance information further comprises:

acquiring capacitance information between a receiving area of the first block and a transmitting area of the fourth block which is aligned in a stacked mode;

capacitance information between the transmitting area of the second block and the receiving area of the third block in alignment with the stack is acquired.

10. The touch detection method of claim 9, wherein the obtaining capacitance information further comprises:

acquiring capacitance information between a transmitting area and a receiving area of a first block;

acquiring capacitance information between a transmitting area and a receiving area of the second block;

acquiring capacitance information between a transmitting area and a receiving area of a third block;

capacitance information between the transmitting area and the receiving area of the fourth block is acquired.

11. A touch detection device, applied to the capacitive touch screen according to any one of claims 1 to 5; the device comprises:

the acquisition module is used for acquiring capacitance information;

and the processing module is used for determining touch information based on the capacitance information.

12. The touch detection device of claim 11, wherein the obtaining module is further configured to:

acquiring capacitance information between adjacent first and second blocks;

13. The touch detection device of claim 12,

the acquisition module is further configured to:

14. The touch detection device of claim 13, wherein the obtaining module is further configured to:

15. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: performing the touch detection method of any of claims 7-10.

16. A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by a processor, perform the touch detection method of any of claims 7-10.