Chip structure and touch display device

Abstract

The invention discloses a chip structure and a touch display device. The chip structure comprises a plurality of sensing units, a plurality of touch control pins and a plurality of first conversion pins. Wherein the plurality of touch control pins are divided into a plurality of first touch control pins and a plurality of second touch control pins which are distributed on two sides of the chip structure, the plurality of first conversion pins are arranged in the chip structure, and the plurality of first conversion pins and the plurality of first touch control pins are distributed on the same side of the chip structure. The plurality of first conversion pins are correspondingly and electrically connected with at least part of the second touch control pins, so that the first conversion pins can change the outgoing line positions of the touch control channels corresponding to at least part of the second touch control pins; therefore, the positions of the touch control channel outgoing lines corresponding to at least part of the second touch control pins prone to interference can be converted to the other side of the chip structure, and the risk of the interference problem of a plurality of chip structures can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic components, and in particular to a chip structure and a touch display device. Background Art

[0002] A chip structure is a device used to process, store, and transmit electrical signals or data.

[0003] Currently, some small-sized display devices use touch and display driver integration (TDDI) chips. This allows the display module and touch control module to share peripheral components on the chip, such as the power management module and signal interface. This simplifies circuit design, reduces product size, and reduces material costs. Large-sized display devices require more touch channels, necessitating the use of multiple TDDI chips.

[0004] However, the aforementioned multiple chips are prone to interference problems, which makes it difficult to apply the chips to large-size display devices. Summary of the Invention

[0005] The present invention provides a chip structure and a touch display device. The technical solution is as follows:

[0006] According to one aspect of the present application, a chip structure is provided, comprising: a plurality of sensing units, a plurality of touch pins, and a plurality of first conversion pins;

[0007] The plurality of touch pins are electrically connected to the plurality of sensing units, and the plurality of touch pins include a plurality of first touch pins and a plurality of second touch pins; the plurality of first touch pins are distributed on one side of the chip structure, and the plurality of second touch pins are distributed on the other side of the chip structure;

[0008] The multiple first conversion pins and the multiple first touch pins are distributed on the same side of the chip structure, and the multiple first conversion pins correspond to at least some of the second touch pins. The first conversion pins are electrically connected to the corresponding second touch pins through a first conversion channel.

[0009] Optionally, the chip structure also includes: a plurality of second conversion pins, the plurality of second conversion pins and the plurality of second touch pins are distributed on the same side of the chip structure, and the plurality of second conversion pins correspond to at least some of the first touch pins, and the second conversion pins are electrically connected to the corresponding first touch pins through a second conversion channel.

[0010] Optionally, a portion of the plurality of first touch pins and a portion of the plurality of second touch pins are touch driving pins, and another portion of the plurality of first touch pins and another portion of the plurality of second touch pins are touch sensing pins.

[0011] Wherein, the number of the touch sensing pins in the chip structure is greater than the number of the touch driving pins.

[0012] Optionally, each of the second touch pins corresponding to the plurality of first conversion pins is the touch drive pin, and each of the first touch pins corresponding to the plurality of second conversion pins is the touch drive pin.

[0013] Optionally, each of the second touch pins corresponding to the plurality of first conversion pins is the touch sensing pin, and each of the first touch pins corresponding to the plurality of second conversion pins is the touch sensing pin.

[0014] Optionally, the chip structure further includes: a first conversion switch and a second conversion switch; the first conversion switch is electrically connected to each of the first conversion channels and is used to control the conduction or shutoff of the first conversion channels; the second conversion switch is electrically connected to each of the second conversion channels and is used to control the conduction or shutoff of the second conversion channels.

[0015] Optionally, the chip structure further includes: a control unit; the control unit is configured to:

[0016] After receiving the first instruction, the first conversion switch and the second conversion switch are both controlled to be turned off; after receiving the second instruction, the first conversion switch is controlled to be turned on, and the second conversion switch is controlled to be turned off; after receiving the third instruction, the first conversion switch is controlled to be turned off, and the second conversion switch is controlled to be turned on.

[0017] Optionally, the plurality of first conversion pins are divided into: a plurality of first-category pins and a plurality of second-category pins, and the plurality of second conversion pins are divided into: a plurality of third-category pins and a plurality of fourth-category pins;

[0018] Among them, each of the second touch pins corresponding to the multiple first-category pins is the touch drive pin, each of the second touch pins corresponding to the multiple second-category pins is the touch sensing pin, each of the first touch pins corresponding to the multiple third-category pins is the touch drive pin, and each of the first touch pins corresponding to the multiple fourth-category pins is the touch sensing pin.

[0019] Optionally, the chip structure further includes: a third conversion switch, a fourth conversion switch, a fifth conversion switch and a sixth conversion switch;

[0020] The third conversion switch is electrically connected to each first conversion channel for connecting the first type pin and the second touch pin, and is used to control the conduction or shutoff of the first conversion channel;

[0021] The fourth conversion switch is electrically connected to each first conversion channel for connecting the second type pin and the second touch pin, and is used to control the conduction or shutoff of the first conversion channel;

[0022] The fifth conversion switch is electrically connected to each second conversion channel for connecting the third type pin and the first touch pin, and is used to control the conduction or shutoff of the second conversion channel;

[0023] The sixth conversion switch is electrically connected to each second conversion channel used to connect the fourth type pin and the first touch pin, and is used to control the conduction or disconnection of the second conversion channel.

[0024] Optionally, the chip structure further includes: a control unit; the control unit is configured to:

[0025] After receiving the fourth instruction, the third conversion switch and the fifth conversion switch are both controlled to be turned off; after receiving the fifth instruction, the third conversion switch is controlled to be turned on, and the fifth conversion switch is controlled to be turned off; after receiving the sixth instruction, the third conversion switch is controlled to be turned off, and the fifth conversion switch is controlled to be turned on; after receiving the seventh instruction, the fourth conversion switch and the sixth conversion switch are both controlled to be turned off; after receiving the eighth instruction, the fourth conversion switch is controlled to be turned on, and the sixth conversion switch is controlled to be turned off; after receiving the ninth instruction, the fourth conversion switch is controlled to be turned off, and the sixth conversion switch is controlled to be turned on.

[0026] Optionally, the chip structure further comprises: a plurality of driving units and a plurality of display driving pins, wherein the plurality of display driving pins are electrically connected to the plurality of driving units accordingly;

[0027] The plurality of display driving pins are distributed between the plurality of first touch pins and the plurality of second touch pins.

[0028] On the other hand, a touch display device is provided, comprising: a touch display module, and at least one chip structure bound and connected to the touch display module, wherein the chip structure is any of the above-mentioned chip structures.

[0029] Optionally, at least some of the touch pins in the at least one chip structure are electrically connected to a plurality of touch traces in the touch display module.

[0030] Optionally, there are two chip structures; wherein, at least part of the first touch pins and at least part of the first conversion pins in one chip structure are electrically connected to a part of the touch traces; and at least part of the second touch pins and at least part of the second conversion pins in another chip structure are electrically connected to another part of the touch traces.

[0031] Optionally, at least part of the display driving pins in the at least one chip structure are electrically connected to a plurality of data signal lines in the touch display module.

[0032] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0033] In the chip structure provided in the embodiment of the present application, multiple touch pins are divided into multiple first touch pins and multiple second touch pins distributed on both sides of the chip structure. The embodiment of the present application provides multiple first conversion pins in the chip structure. The multiple first conversion pins and the multiple first touch pins are distributed on the same side of the chip structure, and the multiple first conversion pins are electrically connected to at least some of the second touch pins. In this way, the first conversion pins can change the position of the touch channel output line corresponding to at least some of the second touch pins, so that the position of the touch channel output line corresponding to at least some of the second touch pins that are prone to interference can be converted to the other side of the chip structure, thereby reducing the risk of interference problems in multiple chip structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 It is a structural diagram of a chip structure provided by related technology;

[0036] Figure 2 This is a structural diagram of a touch display device provided by the related art;

[0037] Figure 3 This is a structural diagram of another touch display device provided by the related art;

[0038] Figure 4 This is a schematic diagram of a chip structure provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of another chip structure provided in an embodiment of the present application;

[0040] Figure 6 is a schematic diagram of another chip structure provided in an embodiment of the present application;

[0041] Figure 7 This is a schematic diagram of another chip structure provided in an embodiment of the present application;

[0042] Figure 8 is a structural diagram of a touch display device provided in an embodiment of the present application;

[0043] Figure 9 This is a schematic diagram of another chip structure provided in an embodiment of the present application;

[0044] Figure 10 is a structural diagram of another touch display device provided in an embodiment of the present application;

[0045] Figure 11 This is a schematic diagram of another chip structure provided in an embodiment of the present application.

[0046] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0048] In related technologies, the chip structure of some small-sized touch display devices adopts the touch and display driver integration technology. Figure 1 , Figure 1It is a structural diagram of a chip structure provided by the related art. The chip structure A is a TDDI chip that integrates touch and display functions. The chip structure A has: a left area Q1, a right area Q2 and a middle area Q3. The multiple touch pins in the chip structure A are distributed in the left area Q1 and the right area Q2 in a centrally symmetrical manner, and the multiple display driver pins in the chip structure A are distributed in the middle area Q3. The chip structure A is suitable for small and medium-sized touch display devices, such as smartphones and wearable devices under 7 inches. For example, the chip structure A has 20 touch drive channels and 40 touch sensing channels. The touch pins in the chip structure A include: 20 touch drive pins T and 40 touch sensing pins R, and 20 touch sensing pins R and 10 touch drive pins T are distributed in the left area Q1 and the right area Q2 respectively.

[0049] However, the chip structure A is difficult to apply to large-sized touch display devices, such as tablet computers and foldable screens larger than 8 inches. Figure 1 , Figure 2 and Figure 3 , Figure 2 This is a structural diagram of a touch display device provided by related technology. Figure 3 This is a structural diagram of another touch display device provided by the related art. The touch display device B is larger in size, so more touch channels are required. For example, 40 touch drive channels and 40 touch sensing channels are required in the touch display device B. Therefore, multiple chip structures A need to be set in the touch display device B, for example, chip structure A1 and chip structure A2. Among them, the touch drive pin T needs to be bound and connected from the bottom side of the touch display module B4 through the first touch trace B1, and the touch sensing pin R needs to be bound and connected from the left and right sides of the touch display module B4 through the second touch trace B2. In the right area Q2 of the chip structure A1 and the left area Q1 of the chip structure A2, the second touch trace B2 connected to the touch sensing pin R is difficult to access from the left and right sides of the touch display module B4, and is likely to interfere with the first touch trace B1.

[0050] like Figure 2 As shown, when the touch pins in the right area Q2 of the chip structure A1 and the left area Q1 of the chip structure A2 are not enabled, the touch display device B can only realize 20 touch driving channels and 40 touch sensing channels, which is not enough to meet the actual number of channels required by the touch display device B. Figure 3As shown, when all touch pins in the chip structure A1 and the chip structure A2 are forcibly enabled, in the right area Q2 of the chip structure A1 and the left area Q1 of the chip structure A2, not only is the second fan-out line B2 likely to interfere with the first fan-out line B1, but the second fan-out line B2 connected to the touch sensing pin R will also interfere with the third fan-out line B3 connected to the display driving pin in the middle area Q3, thereby causing the touch signal and the display signal to affect each other, thereby resulting in poor touch and display functions of the touch display device B.

[0051] This application embodiment provides a chip structure, please refer to Figure 4 and Figure 5 , Figure 4 is a schematic diagram of a chip structure provided in an embodiment of the present application. Figure 5 1 is a schematic structural diagram of another chip structure provided in an embodiment of the present application. The chip structure 100 includes: a plurality of sensing units 110 , a plurality of touch pins 120 and a plurality of first conversion pins 130 .

[0052] The plurality of touch pins 120 are electrically connected to the plurality of sensing units 110. The plurality of touch pins 120 include a plurality of first touch pins 121 and a plurality of second touch pins 122. The plurality of first touch pins 121 are distributed on one side of the chip structure 100, and the plurality of second touch pins 122 are distributed on the other side of the chip structure 100.

[0053] The touch pins 120 can be physical interfaces for connecting to external touch sensors. Each touch pin 120 corresponds to a touch channel, and thus the touch pins 120 can be used to transmit touch signals for the corresponding touch channel. For example, when the chip structure 100 is applied to a touch display device, the touch pins 120 can be electrically connected to touch electrodes via touch traces.

[0054] The first touch pin 121 and the second touch pin 122 are divided according to the distribution position of the touch pin 120. For example, Figure 4 As shown, the plurality of first touch pins 121 are all located on the left side of the chip structure 10, and the plurality of second touch pins 122 are all distributed on the right side of the chip structure 10. Figure 5 As shown, the plurality of first touch pins 121 are all distributed on the right side of the chip structure 10 , and the plurality of second touch pins 122 are all located on the left side of the chip structure 10 .

[0055] The sensing unit 110 may be an analog front-end (AFE) circuit, which integrates an analog-to-digital converter, amplifier, reference source, excitation circuit, modulation and demodulation circuit, etc. It can convert the weak analog signals collected by the analog signal sensor into high-precision, low-noise digital signals for processing by the control unit. Therefore, the sensing unit 110 can convert the touch signals transmitted by the corresponding touch pins 120 into digital signals.

[0056] The plurality of first conversion pins 130 and the plurality of first touch pins 121 are distributed on the same side of the chip structure 100 , and the plurality of first conversion pins 130 correspond to at least some of the second touch pins 122 . The first conversion pins 130 and the corresponding second touch pins 122 are electrically connected via the first conversion channels D1 .

[0057] Here, the first conversion pin 130 can be electrically connected to the sensing unit 110 connected to the corresponding second touch pin 122 via the first conversion channel D1, thereby converting the touch channels corresponding to at least some of the second touch pins 122 to the side where the first conversion pin 130 is located. When the chip structure 100 is applied to a touch display device, at least some of the second touch pins 122 are not directly electrically connected to the touch traces, but instead the corresponding first conversion pins 130 are electrically connected to the touch traces. Therefore, by providing the first conversion pin 130, the position of the touch channel outlet corresponding to at least some of the second touch pins 122 can be changed. When the chip structure 100 is applied to a touch display device, the touch channels corresponding to the second touch pins 122 that are prone to interference can be converted to the other side of the chip structure 100, thereby reducing the risk of interference between multiple chip structures 100.

[0058] Moreover, compared to Figure 1 Compared to the chip structure A provided in the related art, the chip structure 100 provided in the present embodiment converts the touch channels corresponding to at least some of the second touch pins 122 via the first conversion pins 130. The main functional units of the chip structure 100 do not need to be modified; for example, the number of sensing units 110 does not need to be increased. Therefore, the chip structure 100 provided in the present embodiment can achieve cost reduction and controllability.

[0059] For example, Figure 4 As shown, when the plurality of first touch pins 121 are all located on the left side of the chip structure 10, and the plurality of second touch pins 122 are all distributed on the right side of the chip structure 10, the plurality of first conversion pins 130 are all distributed on the left side of the chip structure 10. Therefore, the touch channels corresponding to at least some of the second touch pins 122 can be converted from the right side to the left side, and the touch traces corresponding to at least some of the second touch pins 122 can be connected from the left side. Figure 5 As shown, when multiple first touch pins 121 are located on the right side of the chip structure 10 and multiple second touch pins 122 are distributed on the left side of the chip structure 10, multiple first conversion pins 130 are distributed on the right side of the chip structure 10. In this way, the touch channels corresponding to at least some of the second touch pins 122 can be converted from the left side to the right side, and the touch traces corresponding to at least some of the second touch pins 122 can be accessed from the right side.

[0060] It should be noted that Figure 4 and Figure 5 Some sensing units 110 are omitted, and only one sensing unit 110 is shown as an example to illustrate the corresponding connection between the sensing units 110 and the touch pins 120. However, the embodiment of the present application does not limit the number and specific structure of the sensing units 110. For example, multiple touch pins 120 and multiple sensing units 110 can be electrically connected in a one-to-one correspondence, and the number of sensing units 110 can be equal to the number of touch pins 120.

[0061] To sum up, an embodiment of the present application provides a chip structure, wherein a plurality of touch pins are divided into a plurality of first touch pins and a plurality of second touch pins distributed on both sides of the chip structure. An embodiment of the present application provides a plurality of first conversion pins in the chip structure, and the plurality of first conversion pins and the plurality of first touch pins are distributed on the same side of the chip structure, and the plurality of first conversion pins are electrically connected to at least some of the second touch pins. In this way, the first conversion pins can change the position of the touch channel output line corresponding to at least some of the second touch pins, thereby converting the position of the touch channel output line corresponding to at least some of the second touch pins that are prone to interference to the other side of the chip structure, thereby reducing the risk of interference problems in multiple chip structures.

[0062] For some possible implementations, see Figure 6 , Figure 6 FIG2 is a schematic diagram of another chip structure provided in an embodiment of the present application. The chip structure 100 further includes: a plurality of second conversion pins 140. The plurality of second conversion pins 140 and the plurality of second touch pins 122 are distributed on the same side of the chip structure 100. The plurality of second conversion pins 140 correspond to at least some of the first touch pins 121, and the second conversion pins 140 are electrically connected to the corresponding first touch pins 121 via second conversion channels D2.

[0063] Here, the second conversion pin 140 can be electrically connected to the sensing unit 110 connected to the corresponding first touch pin 121 through the second conversion channel D2, thereby converting the touch channels corresponding to at least some of the first touch pins 121 to the side where the second conversion pin 140 is located. When the chip structure 100 is applied to a touch display device, at least some of the first touch pins 121 are not directly electrically connected to the touch traces, but the corresponding second conversion pins 140 are electrically connected to the touch traces. Therefore, by providing the second conversion pin 140, the position of the touch channel outlet corresponding to at least some of the first touch pins 121 can be changed. When the chip structure 100 is applied to a touch display device, the touch channels corresponding to the first touch pins 121 that are prone to interference can be converted to the other side of the chip structure 100, thereby reducing the risk of interference problems among multiple chip structures 100.

[0064] like Figure 6 As shown, taking the case where multiple first touch pins 121 are all located on the left side of the chip structure 10 and multiple second touch pins 122 are all distributed on the right side of the chip structure 10 as an example, multiple first conversion pins 130 are all distributed on the left side of the chip structure 10. The first conversion pins 130 can convert the touch channels corresponding to the second touch pins 122 from the right side to the left side; multiple second conversion pins 140 are all distributed on the right side of the chip structure 10. The second conversion pins 140 can convert the touch channels corresponding to the first touch pins 121 from the left side to the right side. Therefore, providing the first conversion pins 130 and the second conversion pins 140 in the chip structure 100 can realize the mutual conversion of the touch channels on the left and right sides of the chip structure 100, expanding the application scenarios of the chip structure 100.

[0065] For example, when the touch channels on the right side of the chip structure 100 are prone to interference, the first conversion pin 130 can be activated to convert at least part of the touch channels on the right side to the left side, so that the touch traces corresponding to at least part of the touch channels extend from the left side. When the touch channels on the left side of the chip structure 100 are prone to interference, the second conversion pin 140 can be activated to convert at least part of the touch channels on the left side to the right side, so that the touch traces corresponding to at least part of the touch channels extend from the right side. Therefore, the chip structure 100 can be applied to large-scale touch display devices with various aspect ratios, by selectively calling the first conversion pin 130 or the second conversion pin 140 to convert the touch channels. When neither the left nor right touch channels in the chip structure 100 interfere with each other, the first conversion pin 130 and the second conversion pin 140 can be deactivated. Therefore, the chip structure 100 can also be applied to small-scale touch display devices.

[0066] Alternatively, refer to Figure 7 , Figure 71 is a schematic diagram of another chip structure provided by an embodiment of the present application. A portion of the plurality of first touch pins 121 and a portion of the plurality of second touch pins 122 are touch drive pins T, while another portion of the plurality of first touch pins 121 and another portion of the plurality of second touch pins 122 are touch sensing pins R.

[0067] Here, the touch drive pin T and touch sensing pin R are divided according to the function of the touch pin 120. The touch drive channel corresponding to the touch drive pin T is the touch drive channel (Tx), which is used to generate and transmit drive signals and form a stable electric field on the touch sensor surface. The touch sensing channel corresponding to the touch sensing pin R is the touch sensing channel (Rx), which is used to detect changes in the electric field or capacitance caused by touch and convert them into electrical signals for subsequent processing.

[0068] The number of touch sensing pins R in the chip structure 100 is greater than the number of touch driving pins T. Figure 7 As shown, there are 40 touch sensing pins R and 20 touch driving pins T. For example, the touch sensing electrodes connected to the touch sensing pins R can be arranged in the row direction, and the touch sensing electrodes connected to the touch driving pins T can be arranged in the column direction. If the number of touch sensing pins R is greater than the number of touch driving pins T, the number of rows is greater than the number of columns, that is, the size of the touch display device in the row direction is smaller than the size in the column direction. For example, when the first conversion pin 130 and the second conversion pin 140 are not enabled, the touch display device used by the chip structure 100 can be a smartphone with a vertical screen.

[0069] However, the embodiments of the present application are not limited thereto. For example, the number of touch sensing pins R and the number of touch driving pins T may be determined based on the aspect ratio of the touch display device to which the chip structure 100 is applied.

[0070] In the embodiment of the present application, the touch channels converted by the first conversion pin 130 and the second conversion pin 140 include various application scenarios, which are described below with three exemplary embodiments:

[0071] In the first exemplary embodiment, please refer to Figure 7 , each of the second touch pins 122 corresponding to the plurality of first conversion pins 130 is a touch driving pin T, and each of the first touch pins 121 corresponding to the plurality of second conversion pins 140 is a touch driving pin T.

[0072] For example, Figure 7As shown, multiple first conversion pins 130 are used to convert the touch driving channels corresponding to the touch driving pins T11-T20 on the right to the left, and multiple second conversion pins 140 are used to convert the touch driving channels corresponding to the touch driving pins T1-T10 on the left to the right.

[0073] Therefore, the chip structure 100 provided by the first exemplary embodiment can realize mutual conversion of touch driving channels distributed on the left and right sides of the chip structure 100 .

[0074] Please refer to Figure 8 , Figure 8 FIG1 is a schematic diagram of the structure of a touch display device provided in an embodiment of the present application. The touch display device 000 includes two chip structures 100 provided in the first embodiment: a first chip 100a on the left and a second chip 100b on the right. In the first chip 100a, a first conversion pin 130 is enabled to convert the touch drive channels corresponding to the touch drive pins T11-T20 on the right to the touch drive channels on the left. In this way, the touch drive pins T1-T20 can be bound and connected to the touch display module 200 through the first touch trace 211 on the left side of the first chip 100a, and the touch sensing pins R1-R20 can be bound and connected to the touch display module 200 through the second touch trace 212 on the left side of the first chip 100a. That is, the first chip 100a can realize the binding of 20 touch sensing channels and 20 touch drive channels on the left side, thereby avoiding the problem of interference between the touch trace 210 and the data signal line 220, and thus improving the reliability of the touch display device 000.

[0075] Similarly, in the second chip 100b, the second conversion pin 140 is enabled to convert the touch drive channels corresponding to the touch drive pins T1-T10 on the left side to the right side. In this way, the touch drive pins T1-T20 can be bound and connected to the touch display module 200 via the first touch trace 211 on the right side of the first chip 100a, and the touch sensing pins R21-R40 can be bound and connected to the touch display module 200 via the second touch trace 212 on the right side of the first chip 100a. In other words, the first chip 100a can achieve the binding of 20 touch sensing channels and 20 touch drive channels on the right side, thereby avoiding the problem of interference between the touch trace 210 and the data signal line 220, and thus improving the reliability of the touch display device 000.

[0076] Therefore, when two chip structures 100 provided by the first exemplary embodiment are set in the touch display device 000, the touch display device 000 can realize 40 touch sensing channels and 40 touch driving channels. Figure 8The touch display device 000 shown may be a large-sized square touch display device, such as a foldable screen or a tablet computer.

[0077] In the second exemplary embodiment, please refer to Figure 9 , Figure 9 This is a structural diagram of another chip structure provided in an embodiment of the present application. Each second touch pin 122 corresponding to the multiple first conversion pins 130 is a touch sensing pin R, and each first touch pin 121 corresponding to the multiple second conversion pins 140 is a touch sensing pin R.

[0078] For example, Figure 9 As shown, multiple first conversion pins 130 are used to convert the touch sensing channels corresponding to the touch driving pins R21-R40 on the right to the left, and multiple second conversion pins 140 are used to convert the touch sensing channels corresponding to the touch driving pins R1-R20 on the left to the right.

[0079] Therefore, the chip structure 100 provided by the second exemplary embodiment can realize the mutual conversion of the touch sensing channels distributed on the left and right sides of the chip structure 100 .

[0080] Please refer to Figure 10 , Figure 10 FIG2 is a schematic diagram of the structure of another touch display device provided in an embodiment of the present application. The touch display device 000 includes two chip structures 100 according to the second embodiment: a third chip 100c on the left side and a fourth chip 100d on the right side. In the third chip 100c, the first conversion pin 130 is enabled to convert the touch drive channels corresponding to the touch sensing pins R21-R40 on the right side to the touch drive channels on the left side. In this way, the touch drive pins T1-T10 can be bound and connected to the touch display module 200 through the first touch trace 211 on the left side of the third chip 100c, and the touch sensing pins R1-R40 can be bound and connected to the touch display module 200 through the second touch trace 212 on the left side of the third chip 100c. That is, the third chip 100c can realize the binding of 40 touch sensing channels and 10 touch drive channels on the left side, thereby avoiding the problem of interference between the touch trace 210 and the data signal line 220, and thus improving the reliability of the touch display device 000.

[0081] Similarly, in the fourth chip 100d, the second conversion pin 140 is enabled to convert the touch drive channels corresponding to the touch drive pins R1-R20 on the left side to the right side. This allows the touch drive pins T11-T20 to be bound and connected to the touch display module 200 via the first touch trace 211 on the right side of the third chip 100c, and the touch sensing pins R1-R40 to be bound and connected to the touch display module 200 via the second touch trace 212 on the right side of the third chip 100c. In other words, the third chip 100c can achieve binding of 40 touch sensing channels and 10 touch drive channels on the right side, thereby avoiding interference between the touch trace 210 and the data signal line 220, and thus improving the reliability of the touch display device 000.

[0082] Therefore, when two chip structures 100 provided by the second exemplary embodiment are set in the touch display device 000, the touch display device 000 can realize 80 touch sensing channels and 20 touch driving channels. Figure 10 The touch display device 000 shown may be a long, large-sized touch display device, such as a central control screen of a car.

[0083] Optionally, for the first exemplary embodiment or the second exemplary embodiment, the chip structure 100 further includes a first conversion switch 151 and a second conversion switch 152. The first conversion switch 151 is electrically connected to each first conversion channel D1 and is used to control the conduction or shutoff of the first conversion channel D1. The second conversion switch 152 is electrically connected to each second conversion channel D2 and is used to control the conduction or shutoff of the second conversion channel D2.

[0084] For example, Figure 7 As shown, when the first conversion switch 151 controls the first conversion channel D1 to be turned on, the first conversion pin 130 can convert the touch channels corresponding to at least part of the second touch pin 122 on the right side to the left side. When the first conversion switch 151 controls the first conversion channel D1 to be turned off, the positions of the touch channels corresponding to the second touch pin 122 on the right side remain unchanged. When the second conversion switch 152 controls the second conversion channel D2 to be turned on, the first conversion pin 130 can convert the touch channels corresponding to at least part of the first touch pin 121 on the left side to the right side. When the second conversion switch 152 controls the second conversion channel D2 to be turned off, the positions of the touch channels corresponding to the first touch pin 121 on the left side remain unchanged. Therefore, the first conversion switch 151 and the second conversion switch 152 can improve the control accuracy of the converted touch channels.

[0085] Optionally, the chip structure 100 further includes: a control unit ( Figure 7 The control unit is configured as follows:

[0086] After receiving the first instruction, both first conversion switch 151 and second conversion switch 152 are turned off. Here, since a single chip structure 100 can meet the channel requirements of a small-sized touch display device and eliminates the risk of interference between touch and display signals, channel conversion is unnecessary. Thus, the chip structure 100 under this first instruction is suitable for small-sized touch display devices, such as smartphones.

[0087] After receiving the second instruction, the first conversion switch 151 is controlled to be turned on, and the second conversion switch 152 is controlled to be turned off. Figure 8 Taking the touch display device 000 shown as an example, the right touch channel in the first chip 100a is prone to interference, so it is necessary to convert the right touch channel to the left touch channel. In this way, the first chip 100a can be the chip structure 100 under the second instruction. Similarly, the third chip 100c can also be the chip structure 100 under the second instruction.

[0088] After receiving the third instruction, the first conversion switch 151 is controlled to be turned off, and the second conversion switch 152 is controlled to be turned on. Figure 8 Taking the touch display device 000 shown as an example, the left touch channel in the second chip 100b is prone to interference, so it is necessary to switch the left touch channel to the right touch channel. In this way, the second chip 100b can be the chip structure 100 under the third instruction. Similarly, the fourth chip 100d can also be the chip structure 100 under the third instruction.

[0089] Optionally, the chip structure 100 also includes: a register, in which the above-mentioned first instruction, second instruction and third instruction can be stored for reading by the control unit. Please refer to Table 1, which is a register setting table of a chip structure provided by an embodiment of the present application. The register has three addresses (0X00, 0X01, 0X10), wherein the 0x00 address can store the first instruction, which is used to indicate that the touch drive channel does not convert, or the touch sensing channel does not convert. The 0x01 address can store the second instruction, which is used to indicate that the touch drive channel turns right to left, or the touch sensing channel turns right to left. The 0x10 address can store the third instruction, which is used to indicate that the touch sensing channel turns left to right, or the touch sensing channel turns left to right.

[0090] Table 1

[0091] address 0X00 0X01 0X10 instruction First Directive Second Instruction Third Instruction

[0092] In the third exemplary embodiment, please refer to Figure 11 , Figure 11This is a structural diagram of another chip structure provided in an embodiment of the present application. Multiple first conversion pins 130 are divided into: multiple first-category pins 131 and multiple second-category pins 132, and multiple second conversion pins 140 are divided into: multiple third-category pins 141 and multiple fourth-category pins 142.

[0093] Among them, each second touch pin 122 corresponding to the multiple first-category pins 131 is a touch drive pin T, each second touch pin 122 corresponding to the multiple second-category pins 132 is a touch sensing pin R, each first touch pin 121 corresponding to the multiple third-category pins 141 is a touch drive pin T, and each first touch pin 121 corresponding to the multiple fourth-category pins 142 is a touch sensing pin R.

[0094] For example, Figure 11 As shown, multiple first-category pins 131 are used to convert the touch driving channels corresponding to the touch driving pins T11-T20 on the right to the left, multiple second-category pins 132 are used to convert the touch sensing channels corresponding to the touch sensing pins R21-R40 on the right to the left, multiple third-category pins 141 are used to convert the touch driving channels corresponding to the touch driving pins T1-T10 on the left to the right, and multiple fourth-category pins 142 are used to convert the touch sensing channels corresponding to the touch sensing pins R1-R20 on the left to the right.

[0095] Therefore, the chip structure 100 provided in the third exemplary embodiment can realize the mutual conversion of touch driving channels distributed on the left and right sides of the chip structure 100, and can realize the mutual conversion of touch sensing channels distributed on the left and right sides of the chip structure 100, thereby being applicable to more application scenarios.

[0096] Optionally, the chip structure 100 further includes: a third conversion switch 153 , a fourth conversion switch 154 , a fifth conversion switch 155 and a sixth conversion switch 156 .

[0097] The third conversion switch 153 is electrically connected to each first conversion channel D1 for connecting the first type pin 131 and the second touch pin 122 , and is used to control the on / off state of the first conversion channel D1 .

[0098] The fourth conversion switch 154 is electrically connected to each first conversion channel D1 for connecting the second type pin 132 and the second touch pin 122 , and is used to control the on / off state of the first conversion channel D1 .

[0099] The fifth conversion switch 155 is electrically connected to each second conversion channel D2 for connecting the third type pin 141 and the first touch pin 121 , and is used to control the on or off of the second conversion channel D2 .

[0100] The sixth conversion switch 156 is electrically connected to each second conversion channel D2 used to connect the fourth type pin 142 and the first touch pin 121 , and is used to control the conduction or shutoff of the second conversion channel D2 .

[0101] For example, Figure 11 As shown, when the third conversion switch 153 controls the first conversion channel D1 to be turned on, the first type pin 131 can convert the touch drive channel corresponding to the touch drive pin T on the right to the left. When the third conversion switch 153 controls the first conversion channel D1 to be turned off, the position of the touch drive channel corresponding to the touch drive pin T on the right remains unchanged.

[0102] When the fourth conversion switch 154 controls the first conversion channel D1 to be turned on, the second type pin 132 can convert the touch driving channel corresponding to the touch driving pin T on the right to the left. When the third conversion switch 153 controls the first conversion channel D1 to be turned off, the position of the touch sensing channel corresponding to the touch sensing pin R on the right remains unchanged.

[0103] When the fifth conversion switch 155 controls the second conversion channel D2 to be turned on, the third type pin 141 can convert the touch drive channel corresponding to the touch drive pin T on the left to the right. When the third conversion switch 153 controls the second conversion channel D2 to be turned off, the position of the touch drive channel corresponding to the touch drive pin T on the left remains unchanged.

[0104] When the sixth conversion switch 156 controls the second conversion channel D2 to be turned on, the fourth type pin 142 can convert the touch sensing channel corresponding to the touch sensing pin R on the left to the right. When the third conversion switch 153 controls the second conversion channel D2 to be turned off, the position of the touch sensing channel corresponding to the touch sensing pin R on the left remains unchanged.

[0105] Therefore, the third conversion switch 153 , the fourth conversion switch 154 , the fifth conversion switch 155 and the sixth conversion switch 156 can improve the control accuracy of converting the touch channels.

[0106] Optionally, the chip structure 100 further includes: a control unit ( Figure 7 The control unit is configured as follows:

[0107] After receiving the fourth instruction, the third and fifth conversion switches 153 and 155 are both turned off. After receiving the fifth instruction, the third and fifth conversion switches 153 are turned on, and the fifth and fifth conversion switches 155 are turned off. After receiving the sixth instruction, the third and fifth conversion switches 153 are turned off, and the fifth and fifth conversion switches 155 are turned on. After receiving the seventh instruction, the fourth and sixth conversion switches 154 and 156 are both turned off. After receiving the eighth instruction, the fourth and sixth conversion switches 154 are turned on, and the sixth and sixth conversion switches 156 are turned off. After receiving the ninth instruction, the fourth and sixth conversion switches 154 are turned off, and the sixth and sixth conversion switches 156 are turned on.

[0108] Optionally, the chip structure 100 also includes: a register, in which the above-mentioned fourth instruction, fifth instruction and sixth instruction, seventh instruction, eighth instruction and ninth instruction can be stored so that the control unit can read. Please refer to Table 2, which is a register setting table of a chip structure provided by the present application in an embodiment. The register has three addresses (0X00, 0X01, 0X10), wherein the different bytes in the 0x00 address can store the fourth instruction and the seventh instruction respectively, and the fourth instruction is used to indicate that the touch drive channel is not converted, and the seventh instruction is used to indicate that the touch drive channel is not converted. The different bytes in the 0x01 address can store the fifth instruction and the eighth instruction respectively, and the fifth instruction is used to indicate that the touch drive channel turns right to left, and the eighth instruction is used to indicate that the touch sensing channel turns right to left. The different bytes in the 0x10 address can store the sixth instruction and the ninth instruction respectively, and the sixth instruction is used to indicate that the touch sensing channel turns left to right, and the ninth instruction is used to indicate that the touch sensing channel turns left to right.

[0109] Here, the three instructions for the touch drive channel are respectively used to indicate the three conversion states of the touch drive channel, and the three instructions for the touch sensing channel are respectively used to indicate the three conversion states of the touch sensing channel. In the embodiment of the present application, the three conversion states of the touch drive channel and the three conversion states of the touch sensing channel can be combined in pairs, that is, 9 different combinations of touch drive channels and touch sensing channels can be realized, thereby further broadening the application scenarios of the chip structure 100.

[0110] For example, when the control unit executes the fifth instruction and the eighth instruction, both the touch drive channel and the touch sensing channel can be converted from the right side to the left side, thereby avoiding the situation where some of the multiple second touch pins 122 are not enabled or converted, thereby reducing the waste of touch channels.

[0111] Table 2

[0112] address 0X00 0X01 0X10 Instructions for touch driver channels Fourth Directive Fifth Directive Sixth Directive Instructions for touch sensing channels Seventh Directive Eighth Instruction Ninth Directive

[0113] Optionally, the chip structure 100 further includes: a plurality of drive units 161 and a plurality of display drive pins 162, and the plurality of display drive pins 162 and the plurality of drive units 161 are electrically connected to each other. Here, the drive unit 161 can be used to convert a digital signal into an analog voltage or current, so as to drive the touch display module to emit light. The digital signal can be image data, such as RGB data. The display drive pin 162 can be a physical interface connected to an external touch display module. For example, when the chip structure 100 is applied to a touch display device, the display drive pin 162 can be connected to the touch display module through a data signal line to control the switching of each pixel.

[0114] The display driver pins 162 are distributed between the first touch pins 121 and the second touch pins 122. For example, the display driver pins 162 are distributed in the middle area of ​​the chip structure 100, and the data signal lines connected to the display driver pins 162 can be accessed from the middle area.

[0115] To sum up, an embodiment of the present application provides a chip structure, wherein a plurality of touch pins are divided into a plurality of first touch pins and a plurality of second touch pins distributed on both sides of the chip structure. An embodiment of the present application provides a plurality of first conversion pins in the chip structure, and the plurality of first conversion pins and the plurality of first touch pins are distributed on the same side of the chip structure, and the plurality of first conversion pins are electrically connected to at least some of the second touch pins. In this way, the first conversion pins can change the position of the touch channel output line corresponding to at least some of the second touch pins, thereby converting the position of the touch channel output line corresponding to at least some of the second touch pins that are prone to interference to the other side of the chip structure, thereby reducing the risk of interference problems in multiple chip structures.

[0116] On the other hand, the present invention provides a touch display device. Figure 8 and Figure 10 The touch display device 000 includes a touch display module 200 and at least one chip structure 100 connected to the touch display module 200. The chip structure 100 is any of the chip structures 100 provided in the above embodiments. For example, the number of chip structures 100 in the touch display device 000 can be one or two.

[0117] In the embodiment of the present application, the touch display device 000 can be various devices including touch and display functions, such as mobile phones, tablets, wearable devices, laptop computers, and in-vehicle display devices. The touch display module 200 provided in the embodiment of the present application can adopt an organic light emitting diode (OLED) display module. OLED display modules have the characteristics of self-luminescence, wide viewing angle, wide color gamut, lightness, and flexibility, and can be applied to various display fields.

[0118] Since the touch display device 000 includes the chip structure 100 provided in the above embodiment, the touch display device 000 can also have a similar effect, that is, it can reduce the risk of interference problems occurring in multiple chip structures.

[0119] Optionally, at least some of the touch pins 120 in at least one chip structure 100 are electrically connected to a plurality of touch traces 210 in the touch display module 200. For example, Figure 8 As shown, the first touch pin 121 in the first chip 100a is electrically connected to the plurality of touch traces 210 in the touch display module 200 , and the second touch pin 122 in the second chip 100b is electrically connected to the plurality of touch traces 210 in the touch display module 200 .

[0120] Optionally, there are two chip structures 100. At least part of the first touch pins 121 and at least part of the first conversion pins 130 in one chip structure 100 are electrically connected to a part of the touch traces 210 in the plurality of touch traces 21. At least part of the second touch pins 122 and at least part of the second conversion pins 140 in another chip structure 100 are electrically connected to another part of the touch traces 210 in the plurality of touch traces 210. For example, Figure 8 As shown, the first touch pin 121 and the first conversion pin 130 in the first chip 100a are electrically connected to the multiple touch traces 210 on the left side of the touch display module 200, and the second touch pin 122 and the second conversion pin 140 in the second chip 100b are electrically connected to the multiple touch traces 210 on the right side of the touch display module 200.

[0121] Optionally, at least part of the display driving pins 162 in at least one chip structure 100 is electrically connected to the plurality of data signal lines 220 in the touch display module 200. For example, Figure 8 As shown, the display driver pins 162 in the first chip 100a are electrically connected to the multiple data signal lines 220 on the left side of the touch display module 200, and the display driver pins 162 in the second chip 100b are electrically connected to the multiple data signal lines 220 on the right side of the touch display module 200.

[0122] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0123] In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise expressly limited.

[0124] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A chip structure, characterized in that: The chip structure includes: a plurality of sensing units, a plurality of touch pins and a plurality of first conversion pins; The plurality of touch pins are electrically connected to the plurality of sensing units, and the plurality of touch pins include a plurality of first touch pins and a plurality of second touch pins; the plurality of first touch pins are distributed on one side of the chip structure, and the plurality of second touch pins are distributed on the other side of the chip structure; The multiple first conversion pins and the multiple first touch pins are distributed on the same side of the chip structure, and the multiple first conversion pins correspond to at least some of the second touch pins. The first conversion pins are electrically connected to the corresponding second touch pins through a first conversion channel.

2. The chip structure according to claim 1, characterized in that: The chip structure also includes: a plurality of second conversion pins, the plurality of second conversion pins and the plurality of second touch pins are distributed on the same side of the chip structure, and the plurality of second conversion pins correspond to at least some of the first touch pins, and the second conversion pins are electrically connected to the corresponding first touch pins through a second conversion channel.

3. The chip structure according to claim 2, characterized in that: A portion of the plurality of first touch pins and a portion of the plurality of second touch pins are touch driving pins, and another portion of the plurality of first touch pins and another portion of the plurality of second touch pins are touch sensing pins; Wherein, the number of the touch sensing pins in the chip structure is greater than the number of the touch driving pins.

4. The chip structure according to claim 3, characterized in that: Each of the second touch pins corresponding to the plurality of first conversion pins is the touch driving pin, and each of the first touch pins corresponding to the plurality of second conversion pins is the touch driving pin.

5. The chip structure according to claim 3, characterized in that: Each of the second touch pins corresponding to the plurality of first conversion pins is the touch sensing pin, and each of the first touch pins corresponding to the plurality of second conversion pins is the touch sensing pin.

6. The chip structure according to claim 4 or 5, characterized in that: The chip structure also includes: a first conversion switch and a second conversion switch; the first conversion switch is electrically connected to each of the first conversion channels and is used to control the conduction or shutoff of the first conversion channels; the second conversion switch is electrically connected to each of the second conversion channels and is used to control the conduction or shutoff of the second conversion channels.

7. The chip structure according to claim 6, characterized in that: The chip structure further includes: a control unit; the control unit is configured to: After receiving the first instruction, the first conversion switch and the second conversion switch are both controlled to be turned off; after receiving the second instruction, the first conversion switch is controlled to be turned on, and the second conversion switch is controlled to be turned off; after receiving the third instruction, the first conversion switch is controlled to be turned off, and the second conversion switch is controlled to be turned on.

8. The chip structure according to claim 3, characterized in that: The plurality of first conversion pins are divided into: a plurality of first-category pins and a plurality of second-category pins, and the plurality of second conversion pins are divided into: a plurality of third-category pins and a plurality of fourth-category pins; Among them, each of the second touch pins corresponding to the multiple first-category pins is the touch drive pin, each of the second touch pins corresponding to the multiple second-category pins is the touch sensing pin, each of the first touch pins corresponding to the multiple third-category pins is the touch drive pin, and each of the first touch pins corresponding to the multiple fourth-category pins is the touch sensing pin.

9. The chip structure according to claim 8, characterized in that: The chip structure further includes: a third conversion switch, a fourth conversion switch, a fifth conversion switch and a sixth conversion switch; The third conversion switch is electrically connected to each first conversion channel for connecting the first type pin and the second touch pin, and is used to control the conduction or shutoff of the first conversion channel; The fourth conversion switch is electrically connected to each first conversion channel for connecting the second type pin and the second touch pin, and is used to control the conduction or shutoff of the first conversion channel; The fifth conversion switch is electrically connected to each second conversion channel for connecting the third type pin and the first touch pin, and is used to control the conduction or shutoff of the second conversion channel; The sixth conversion switch is electrically connected to each second conversion channel used to connect the fourth type pin and the first touch pin, and is used to control the conduction or disconnection of the second conversion channel.

10. The chip structure according to claim 9, characterized in that: The chip structure further includes: a control unit; the control unit is configured to: After receiving the fourth instruction, the third conversion switch and the fifth conversion switch are both controlled to be turned off; after receiving the fifth instruction, the third conversion switch is controlled to be turned on, and the fifth conversion switch is controlled to be turned off; after receiving the sixth instruction, the third conversion switch is controlled to be turned off, and the fifth conversion switch is controlled to be turned on; after receiving the seventh instruction, the fourth conversion switch and the sixth conversion switch are both controlled to be turned off; after receiving the eighth instruction, the fourth conversion switch is controlled to be turned on, and the sixth conversion switch is controlled to be turned off; after receiving the ninth instruction, the fourth conversion switch is controlled to be turned off, and the sixth conversion switch is controlled to be turned on.

11. The chip structure according to any one of claims 1-5, 7-10, characterized in that: The chip structure further includes: a plurality of driving units and a plurality of display driving pins, wherein the plurality of display driving pins are electrically connected to the plurality of driving units; The plurality of display driving pins are distributed between the plurality of first touch pins and the plurality of second touch pins.

12. A touch display device, characterized in that: The touch display device includes: a touch display module, and at least one chip structure bound and connected to the touch display module, and the chip structure is the chip structure according to any one of claims 1 to 11.

13. The touch display device according to claim 12, wherein: At least part of the touch pins in the at least one chip structure is electrically connected to a plurality of touch traces in the touch display module.

14. The touch display device according to claim 13, wherein: There are two chip structures; among them, at least part of the first touch pins and at least part of the first conversion pins in one chip structure are electrically connected to a part of the touch traces; at least part of the second touch pins and at least part of the second conversion pins in another chip structure are electrically connected to another part of the touch traces.

15. The touch display device according to any one of claims 12 to 14, characterized in that: At least part of the display driving pins in the at least one chip structure is electrically connected to a plurality of data signal lines in the touch display module.

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