Touch and display driving integrated chip, touch display module and display device
By introducing a touch digital unit into the TDDI chip to interact with the display driver module and adjusting the frequency and reporting rate, the problems of signal interference and high power consumption caused by the independent operation of the touch driver module and the display driver module are solved, achieving more efficient touch and display collaboration and adapting to a variety of application scenarios.
Patent Information
- Application Number
- CN202310118754.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2043-02-06
AI Technical Summary
In existing TDDI chips, the touch driver module and the display driver module work independently, lacking interaction, which leads to signal interference and high power consumption, failing to meet the needs of different application scenarios.
By introducing a touch digital unit into the touch and display driver integrated chip, which is connected to the display driver module, display-related information is obtained to adjust the touch driving frequency and reporting rate, reduce signal interference, and optimize the pin layout through pin area division to achieve collaborative work between modules.
It effectively reduces signal interference during touch and display driving, optimizes power consumption, improves touch detection accuracy and display effect, and adapts to the needs of different application scenarios.
Smart Images

Figure CN116126166B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of display, and in particular to a touch and display driver integrated chip, a touch display module, and a display device. Background Technology
[0002] With the continuous development of display technology, touch display devices have been widely used. Typically, the touch panel and display panel in a touch display device are controlled independently by two chips. In order to improve the integration of touch display devices, the Touch and Display Driver Integration (TDDI) chip has emerged.
[0003] TDDI products are widely used due to their advantages such as high touch sensitivity and thinness. However, current TDDI chips simply integrate the functions of the touch driver chip and the existing display driver chip into a single chip, respectively, as touch driver modules and display driver modules. During operation, the touch driver module and the display driver module work independently, with no interaction between them. Summary of the Invention
[0004] In a first aspect, embodiments of this disclosure provide a touch and display driver integrated chip, applied to a touch display panel, characterized in that the touch and display driver integrated chip includes: a touch driver module and a display driver module, the touch driver module being configured to perform touch driving and touch detection on the touch display panel, the display driver module being used to perform display driving on the touch display panel, and the touch driver module including: a touch digital unit, the touch digital unit being configured to process digital signals during the touch driving process and the touch detection process;
[0005] The touch digital unit is connected to the display driver module, and the touch digital unit is further configured to obtain display-related information from the display driver module, and adjust the touch driving frequency during the touch driving process and / or the touch reporting rate during the touch detection process according to the display-related information.
[0006] In some embodiments, the display driver module includes: a timing controller, wherein the timing controller stores display driver timing information;
[0007] The display-related information includes the display driver timing information;
[0008] The touch digital unit includes a first processing subunit connected to the timing controller. The touch data unit is configured to obtain the display driving timing information from the timing controller and adjust the touch driving frequency according to the display driving timing information to reduce signal interference between the touch driving process and the display driving process.
[0009] In some embodiments, the timing controller is further configured to obtain the touch reporting rate and / or touch detection result during the touch detection process from the touch digital unit, and adjust the screen refresh rate during the display driving process based on the touch reporting rate and / or touch detection result.
[0010] In some embodiments, the display driver module includes: a register, wherein the register stores screen display data;
[0011] The display-related information includes the screen display data;
[0012] The touch digital unit includes a second processing subunit connected to the register. The touch data unit is configured to obtain the screen display data from the register and adjust the touch reporting rate during the touch detection process according to the screen display data.
[0013] In some embodiments, the display driver module includes: a register, wherein the register stores screen display data;
[0014] The display-related information includes the panel information of the touch display panel;
[0015] The touch digital unit includes a third processing subunit connected to the register. The touch data unit is configured to obtain panel information of the touch display panel from the register and detect whether the firmware code written by the touch driver module matches the touch display panel based on the panel information of the touch display panel.
[0016] In some embodiments, the touch and display driver integrated chip further includes:
[0017] Multiple touch driving pins are respectively connected to the touch driving module, so that the touch driving module can provide touch driving signals to the touch display panel through the touch driving pins;
[0018] Multiple touch detection pins are connected to the touch driving module, so that the touch driving module can receive touch sensing signals fed back by the touch display panel through the touch detection pins;
[0019] Multiple display driving pins are respectively connected to the display driving module, so that the display driving module can provide pixel voltage signals to the touch display panel through the display driving pins;
[0020] The touch and display driver integrated chip is divided into at least one first pin area, at least one second pin area, and at least one third pin area. The first pin area, the second pin area, and the third pin area are arranged along a first preset direction. The touch driving pin is located in the first pin area, the touch detection pin is located in the second pin area, and the display driving pin is located in the third pin area.
[0021] In some embodiments, the number of the first pin area, the second pin area, and the third pin area is one, and the first pin area and the second pin area are located on different sides of the third pin area in the first preset direction;
[0022] or,
[0023] The number of the first pin area, the second pin area, and the third pin area is one each, and the first pin area is located between the second pin area and the third pin area;
[0024] or,
[0025] The number of the first pin area and the number of the second pin area are both 2, and the number of the third pin area is 1. The two first pin areas are located on different sides of the third pin area in the first preset direction, and the two second pin areas are located on the side of the two first pin areas away from the third pin area.
[0026] In a second aspect, embodiments of this disclosure provide a touch display module, characterized in that it includes: a touch display panel and the touch and display driver integrated chip as provided in the first aspect.
[0027] In some embodiments, the touch display panel includes: a functional area, a bendable area, and a bonding area, wherein the bendable area is located between the functional area and the bonding area, and the touch and display driver integrated chip is fixed to the bonding area;
[0028] The functional area is provided with a touch function structure and a display function structure. The touch function structure includes: a plurality of touch driving electrodes arranged along a first preset direction and a plurality of touch sensing electrodes arranged along a second preset direction. The touch driving electrodes extend along the second preset direction and the touch sensing electrodes extend along the first preset direction. The display function structure includes: a plurality of data lines arranged along the first preset direction and the data lines extend along the second preset direction.
[0029] In some embodiments, the functional area includes: an effective area, a first peripheral area located on a first side of the effective area, a second peripheral area located on a second side of the effective area, a third peripheral area located on a third side of the effective area, and a fourth peripheral area located on a fourth side of the peripheral area, wherein the first side and the second side are opposite sides in a first direction, the third side and the fourth side are opposite sides in a second direction, and the fourth peripheral area is closer to the bendable area than the third peripheral area; the bendable area includes: a middle area, a fifth peripheral area located on a first side of the middle area, and a sixth peripheral area located on a second side of the middle area;
[0030] The end of the data line near the fourth peripheral area is connected to the corresponding data transmission lead located in the third peripheral area. The data transmission lead extends through the middle area to the binding area and is connected to the corresponding display driver pin.
[0031] The number of the first pin area and the number of the second pin area are both 2, and the number of the third pin area is 1. The two first pin areas are located on different sides of the third pin area in the first preset direction, and the two second pin areas are located on the side of the two first pin areas away from the third pin area.
[0032] Of all the touch sensing electrodes, one end of a portion of the touch sensing electrodes near the first peripheral region is connected to the corresponding first touch sensing transmission lead located within the first peripheral region, and the other end of the touch sensing electrodes near the second peripheral region is connected to the corresponding second touch sensing transmission lead located within the second peripheral region. The first touch sensing transmission lead extends through the fifth peripheral region into the bonding region and is connected to the corresponding touch sensing application pin within the bonding region. The second touch sensing transmission lead extends through the sixth peripheral region into the bonding region and is connected to the corresponding touch sensing application pin.
[0033] One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region. A portion of the first touch driving transmission lead extends through the fifth peripheral region into the bonding region and is connected to a corresponding touch driving pin in the bonding region. Another portion of the first touch driving transmission lead extends through the sixth peripheral region into the bonding region and is connected to a corresponding touch driving pin.
[0034] or,
[0035] The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the first side of the third pin area.
[0036] One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0037] One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region, and one end of each of the touch driving electrodes near the third peripheral region is connected to a corresponding second touch driving transmission lead located in the third peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. The second touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region.
[0038] or,
[0039] The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the first side of the third pin area.
[0040] One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0041] One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region.
[0042] or,
[0043] The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the second side of the third pin area.
[0044] One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0045] One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region, and one end of each of the touch driving electrodes near the third peripheral region is connected to a corresponding second touch driving transmission lead located in the third peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. The second touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region.
[0046] or,
[0047] The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the second side of the third pin area.
[0048] One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0049] One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region.
[0050] or,
[0051] The number of the first pin area, the second pin area, and the third pin area is one each. The first pin area is located on the first side of the third pin area, and the second pin area is located on the second side of the third pin area.
[0052] One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0053] One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region.
[0054] or,
[0055] The number of the first pin area, the second pin area, and the third pin area is one each. The first pin area is located on the second side of the third pin area, and the second pin area is located on the first side of the third pin area.
[0056] One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area.
[0057] One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region.
[0058] Thirdly, embodiments of this disclosure provide a display device, including: a touch display module as provided in the second aspect above. Attached Figure Description
[0059] Figure 1 A functional structure diagram of a touch and display driver integrated chip provided in an embodiment of this disclosure;
[0060] Figure 2A This is a schematic diagram of the functional structure of a touch digital unit in an embodiment of this disclosure;
[0061] Figure 2B This is a schematic diagram of a hardware structure of the touch digital unit in an embodiment of this disclosure;
[0062] Figures 3A-3E This is a schematic diagram showing the different pin distributions on the driver integrated chip in an embodiment of this disclosure;
[0063] Figure 4 This is a schematic diagram of a touch display module in one embodiment of the present disclosure;
[0064] Figures 5A to 5H This is a schematic diagram of the structure of different touch display panels and their corresponding touch and display driver integrated chips in the embodiments of this disclosure. Detailed Implementation
[0065] This document describes several embodiments, but these descriptions are exemplary and not limiting. Many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the accompanying drawings and discussed in the detailed description, many other combinations of the disclosed features also exist.
[0066] It is possible, unless otherwise specified, that any feature or element of any embodiment may be used in combination with any other feature or element of any other embodiment, or may replace any other feature or element of any other embodiment.
[0067] In the accompanying drawings, the size of the constituent elements, the thickness of the layers, or the area are sometimes exaggerated for clarity. Therefore, one aspect of this disclosure is not necessarily limited to these dimensions, and the shapes and sizes of the components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and one aspect of this disclosure is not limited to the shapes or values shown in the drawings.
[0068] The ordinal numbers “first,” “second,” and “third” used in this specification are used to avoid confusion among the constituent elements, not to limit their quantity.
[0069] In this specification, for convenience, terms such as "middle," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of each constituent element being described. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.
[0070] In this specification, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0071] Figure 1 This is a functional structure diagram of a touch and display driver integrated chip provided in an embodiment of the present disclosure. Figure 2A This is a functional structure diagram of a touch digital unit in an embodiment of this disclosure. Figure 2BThis is a schematic diagram of a hardware structure of the touch digital unit in an embodiment of this disclosure, such as... Figures 1 to 2B As shown, the touch and display driver integrated chip 1 is applied to a touch display panel 2. The touch display panel 2 may include a touch function structure for implementing touch functions and a display function structure for implementing display functions. As an example, the touch display panel 2 includes a touch panel (TP) and a display panel (e.g., an OLED display panel). The touch panel includes a touch function structure, and the display panel includes a display function structure.
[0072] In this embodiment, the touch and display driver integrated chip 1 includes a touch driver module 3 and a display driver module 4. The touch driver module 3 is configured to drive and detect touch on the touch display panel 2, and the display driver module 4 is used to drive the display on the touch display panel 2.
[0073] As an example, the touch function structure within the touch display panel 2 is a mutual capacitance touch structure. The touch driver module 3 can provide touch driving signals to the touch display panel 2 to drive the touch function structure, and can also receive touch sensing signals fed back from the touch display panel 2 and determine the touch position (i.e., obtain the touch detection result) based on the received touch sensing signals to achieve touch detection. The display driver module 4 can provide display data to the touch display panel 2, including the data voltage signals corresponding to each display sub-pixel within the touch display panel 2. The specific touch driving, touch detection, and display driving processes can be implemented based on the existing touch driver chip and display driver chip's operating processes, and will not be elaborated here.
[0074] In some embodiments, the touch driving module 3 includes a touch digital unit 31 (TP_Digital), which is configured to process digital signals during the touch driving process and the touch detection process. The touch digital unit 31 is connected to the display driving module 4 and is further configured to obtain display-related information from the display driving module 4 and adjust the touch driving frequency during the touch driving process and / or the touch reporting rate during the touch detection process based on the display-related information.
[0075] In this embodiment of the disclosure, display-related information refers to various information that can be used to enable the touch display panel 2 to display images, such as display driving timing information during the display driving process, image display data, and panel information of the touch display panel 2 to be driven (e.g., Panel ID).
[0076] The touch driving frequency refers to the frequency of the touch driving signal output by the touch driving module 3. Generally, the touch driving signal output by the touch driving module 3 during the touch driving process and the signals output by the display driving module 4 during the display driving process (e.g., scan driving signals, data voltage signals, etc.) are subject to mutual noise interference, which can adversely affect the touch detection and display of the touch display panel 2. In this embodiment, the status of various signals during the display driving process can be obtained by collecting display-related information, and the touch driving frequency can be adjusted according to a preset adjustment algorithm to reduce signal interference between the touch driving process and the display driving process, thereby effectively improving the touch detection accuracy and display effect of the touch display panel 2. A detailed description will follow with specific examples.
[0077] The touch reporting rate refers to the number of times the touch driver module 3 reports touch positions (coordinates) per unit time. The reporting rate is primarily determined by the time it takes for the touch driver module 3 to scan all channels. A higher touch reporting rate indicates a faster touch response speed, but also higher power consumption of the touch driver module 3; conversely, a lower touch reporting rate indicates a slower touch response speed, but also lower power consumption of the touch driver module 3. In this embodiment, the touch reporting rate during the touch detection process can be dynamically adjusted based on display-related signals, thereby enabling dynamic adjustment of the power consumption of the touch driver module 3 according to different application scenarios, ultimately reducing the overall power consumption of the integrated touch and display driver chip 1. A detailed description with specific examples will follow.
[0078] Unlike existing technologies where the touch driver module 3 and display driver module 4 within the integrated touch and display driver chip 1 are independent and do not interact, in this embodiment, the touch digital unit 31 within the touch driver module 3 is connected to the display driver module 4. The touch digital unit 31 in this embodiment not only possesses the functions of a conventional touch digital unit 31 for processing digital signals during the touch driving and touch detection processes, but also has the function of acquiring display-related information from the display driver module 4 and adjusting the touch driving frequency and / or touch reporting rate during the touch detection process based on this information. This enriches the functionality of the integrated touch and display driver chip 1 to meet the needs of different scenarios.
[0079] In some embodiments, the display driving module 4 includes: a timing controller 41, which stores display driving timing information; display-related information includes the display driving timing information; the touch digital unit 31 includes: a first processing subunit 311, which is connected to the timing controller 41, and the touch data unit is configured to obtain the display driving timing information from the timing controller 41 and adjust the touch driving frequency according to the display driving timing information to reduce signal interference between the touch driving process and the display driving process.
[0080] In practical applications, the degree of mutual interference between the touch driving process and the display driving process under different display driving timings and different touch driving frequencies can be obtained through pre-simulation or pre-testing. Then, a touch driving frequency with a relatively low interference level (which can be set according to actual conditions) is determined for different display driving timings, thereby obtaining first correspondence data recording different display driving timings and their corresponding touch driving frequencies, and storing this first correspondence data in the first processing subunit 311. In practical applications, after obtaining the display driving timing information, the first processing subunit 311 can determine the corresponding touch driving frequency through querying and adjust the touch driving frequency of the touch driving module 3 accordingly.
[0081] Of course, a corresponding touch drive frequency adjustment algorithm can also be set in the first processing subunit 311. After obtaining the display drive timing information, a corresponding touch drive frequency adjustment strategy is calculated based on the touch drive frequency adjustment algorithm and the display drive timing information, and the touch drive frequency of the touch drive module 3 is adjusted accordingly based on the calculated touch drive frequency adjustment strategy. The specific calculation process and principle of the touch drive frequency adjustment algorithm are not limited in this disclosure.
[0082] In some embodiments, the timing / state controller 41 is further configured to obtain the touch reporting rate and / or touch detection result during the touch detection process from the touch digit unit 31, and adjust the screen refresh rate during the display driving process based on the touch reporting rate and / or touch detection result.
[0083] In this embodiment of the present disclosure, the timing controller 41 located in the display driving module 4 can obtain the touch reporting rate and / or touch detection result during the touch detection process from the touch digital unit 31, and adjust the screen refresh rate during the display driving process according to the touch reporting rate and / or touch detection result.
[0084] As an example, the timing controller 41 can adjust the screen refresh rate based on the touch reporting rate. For instance, a lower touch reporting rate indicates a lower demand from the user for touch on the touch display panel 2, and consequently, a lower demand for the display quality of the touch display panel 2. In this case, the screen refresh rate during the display driving process can be lowered. Conversely, a higher touch reporting rate allows for a higher screen refresh rate.
[0085] As another example, a second correspondence data containing different touch operations and their corresponding screen refresh rates can be pre-stored in the timing controller 41. The timing controller 41 can determine the user's touch operation on the touch display panel 2 (e.g., single-finger operation, multi-finger operation, swipe, double tap, etc.) based on the touch detection results, then query the screen refresh rate corresponding to the touch operation based on the second correspondence data, and adjust the screen refresh rate of the display driver module 4 during the display driving process.
[0086] Of course, the screen refresh rate can also be adjusted by combining both the touch reporting rate and the touch detection results in this disclosure.
[0087] It should be noted that the specific adjustment algorithm used in this disclosure when adjusting the screen refresh rate during the display driving process based on the touch reporting rate and / or touch detection results is not limited.
[0088] In some embodiments, the display driver module 4 includes: a register 42, which stores screen display data; display-related information includes screen display data; the touch data unit 31 includes: a second processing subunit 312, which is connected to the register 42, and the touch data unit is configured to obtain screen display data from the register 42 and adjust the touch reporting rate during the touch detection process according to the screen display data.
[0089] As an example, the touch data unit can determine the current screen displayed on the touch display panel 2 based on the screen display data, and determine the application screen scene of the application currently running on the touch display panel 2 based on the current screen displayed on the touch display panel 2. For example, multiple application screen scenes can be preset: clock display application screen scene, web application screen scene, social application screen scene, video application screen scene, photo application screen scene, and text reading application screen scene. Generally, different application screen scenes require different touch reporting rates. For example, clock display application screen scenes and text reading application screen scenes have lower touch reporting rate requirements, while web application screen scenes, social application screen scenes, video application screen scenes, and photo application screen scenes have higher touch reporting rate requirements. Based on the above principle, in this embodiment of the disclosure, corresponding touch reporting rates can be pre-configured for different application screen scenes, thereby realizing the dynamic change of the touch reporting rate with the application screen scene, which is beneficial to reducing the power consumption of the touch driver module 3, thereby effectively reducing the overall power consumption of the touch and display driver integrated chip 1.
[0090] In some embodiments, the display-related information includes the panel information of the touch display panel 2; the touch digital unit 31 includes: a third processing subunit 313, the third processing subunit 313 is connected to the register 42, the touch data unit is configured to obtain the panel information of the touch display panel 2 from the register 42, and detect whether the firmware code written by the touch driver module 3 matches the touch display panel 2 according to the panel information of the touch display panel 2.
[0091] During the startup process, the touch driver module 3 needs to download the required firmware code from the flash memory module connected to the touch and display driver integrated chip 1, and store the firmware code locally so that the touch driver module 3 can start up and subsequently drive and detect the touch display panel 2 according to the local firmware code.
[0092] In practical applications, it has been found that sometimes the touch driver module 3 can start up, but the touch driving and touch detection processes of the touch display panel 2 are abnormal. Research revealed that this is due to a mismatch between the firmware code downloaded to the touch driver module 3 and the touch display panel 2 to be driven. In practice, after the entire device is assembled, actual touch operations are used to determine if the touch function of the touch display panel 2 is abnormal, thereby determining whether the firmware code matches the touch display panel 2 to be driven. However, this method has certain limitations. Specifically, abnormal touch function is not only related to the "mismatch between firmware code and touch display panel 2 to be driven" factor, but also to many other factors, such as signal interference and abnormalities in the touch function structure itself (e.g., broken wires, short circuits). Therefore, the existing method of determining whether the firmware code matches the touch display panel 2 through actual touch detection cannot accurately determine this mismatch.
[0093] To address this, this disclosure includes a third processing subunit 313 within the touch digital unit 31. This third processing subunit 313 reads the panel information of the touch display panel 2. It then compares this read panel information with the panel information of the touch display panel 2 supported by the firmware code. If the panel information of the touch display panel 2 supported by the firmware code includes the panel information read by the third processing subunit 313 from the register 42 within the display driver module 4, it is determined that the firmware code written by the touch driver module 3 matches the touch display panel 2 to be driven; otherwise, it is determined that the firmware code written by the touch driver module 3 does not match the touch display panel 2 to be driven. Compared with related technologies, the technical solution of this disclosure can accurately determine whether the firmware code matches the touch display panel 2 to be driven.
[0094] See Figure 2B As shown, in some embodiments, the touch digital unit 31 may include two hardware structures: a microcontroller unit 31a (MCU) and a memory 31b; specifically, the memory 31b may be a static random-access memory (SRAM). In this embodiment, programs for implementing the first processing subunit 311, the second processing subunit 312, and the third processing subunit 313 can be written into the memory 31b, and the microcontroller unit 31a can execute the corresponding programs to implement the corresponding functions of the first processing subunit 311, the second processing subunit 312, and the third processing subunit 313.
[0095] It should be noted that this disclosure only provides an example of a touch digital unit 31 simultaneously including a first processing subunit 311, a second processing subunit 312, and a third processing subunit 313. This example is merely illustrative and does not limit the technical solution of this disclosure. In practical applications, at least one of the aforementioned first processing subunit 311, second processing subunit 312, and third processing subunit 313 can be provided within the touch digital unit 31 as needed.
[0096] The other necessary structures in the touch driver module 3, excluding the touch digital unit 31, and the other necessary structures in the display driver module 4, excluding the register 42 and the timing controller 41, are all well-known technologies in the art and will not be described in detail here.
[0097] The technical solution disclosed herein not only improves the touch driver module 3 and the display driver module 4, but also designs the pin structure of the display driver integrated chip 1 accordingly.
[0098] Figures 3A-3E This is a schematic diagram showing the different pin distributions on the display driver integrated chip 1 in an embodiment of this disclosure, such as... Figures 3A-3E As shown, in some embodiments, the touch and display driver integrated chip 1 further includes: a plurality of touch driving pins, a plurality of touch detection pins, and a plurality of display driving pins.
[0099] Multiple touch driving pins are connected to the touch driving module 3, allowing the touch driving module 3 to provide touch driving signals to the touch display panel 2 through these pins. Multiple touch detection pins are also connected to the touch driving module 3, allowing the touch driving module 3 to receive touch sensing signals from the touch display panel 2 through these pins. Finally, multiple display driving pins are connected to the display driving module 4, allowing the display driving module 4 to provide pixel voltage signals to the touch display panel 2 through these pins.
[0100] In some embodiments, the touch and display driver integrated chip 1 is divided into at least one first pin area Z1, at least one second pin area Z2 and at least one third pin area Z3. The first pin area Z1, the second pin area Z2 and the third pin area Z3 are arranged along a first preset direction X. The touch driving pin is located in the first pin area Z1, the touch detection pin is located in the second pin area Z2 and the display driving pin is located in the third pin area Z3.
[0101] Figures 3A-3EThe illustration only shows the case where the first preset direction X is horizontal and a pin area includes a row of pins. It should be noted that in the embodiments of this disclosure, the pins in each pin area can be arranged in one or more rows, and the technical solution of this disclosure does not limit the arrangement of pins in each pin area.
[0102] See Figure 3A As shown, there are two first pin areas Z1 and two second pin areas Z2, and one third pin area Z3. The two first pin areas Z1 are located on different sides of the third pin area Z3 in the first preset direction X, and the two second pin areas Z2 are located on the side of the two first pin areas Z1 that is away from the third pin area Z3.
[0103] See Figure 3B and Figure 3C As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one, and the first pin area Z1 is located between the second pin area Z2 and the third pin area Z3.
[0104] See Figure 3D and Figure 3E As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one, and the first pin area Z1 and the second pin area Z2 are located on different sides of the third pin area Z3 in the first preset direction X.
[0105] The following sections will provide a detailed description of the specific applications corresponding to different pin configurations, using concrete examples.
[0106] Based on the same invention, embodiments of this disclosure also provide a touch display module. Figure 4 This is a schematic diagram of a touch display module in one embodiment of the present disclosure, such as... Figure 4 As shown, the touch display module includes: a touch display panel 2 and a touch and display driver integrated chip 1, wherein the touch and display driver integrated chip 1 can be the touch and display driver integrated chip 1 provided in the previous embodiment.
[0107] In some embodiments, the touch display panel 2 includes: a functional area 21, a bendable area 22, and a bonding area 23. The bendable area 22 is located between the functional area 21 and the bonding area 23. The touch and display driver integrated chip 1 is fixed (e.g., fixed by COP packaging) to the bonding area 23. The functional area 21 is provided with a touch function structure and a display function structure. The touch function structure includes: a plurality of touch driving electrodes TX arranged along a first preset direction X and a plurality of touch sensing electrodes RX arranged along a second preset direction Y. The touch driving electrodes TX extend along the second preset direction Y, and the touch sensing electrodes RX extend along the first preset direction X. The display function structure includes: a plurality of data lines (not shown) arranged along the first preset direction X and the data lines extend along the second preset direction Y.
[0108] It should be noted that, Figure 4 The first preset direction X is the horizontal direction, and the second preset direction Y is the vertical direction.
[0109] The touch function structure in this disclosure can be any structure capable of implementing touch functionality, and the display function structure can be any structure capable of implementing display functionality. The specific structures of the touch function structure and the display function structure are conventional structures in the art and will not be described in detail here.
[0110] Figures 5A to 5H This is a schematic diagram of the structure of different touch display panels 2 and their corresponding touch and display driver integrated chips 1 in the embodiments of this disclosure, such as... Figures 5A to 5H As shown, in some embodiments, the functional area 21 includes: an effective area 211 (also called the AA area), a first peripheral area P1 located on the first side of the effective area 211, a second peripheral area P2 located on the second side of the effective area 211, a third peripheral area P3 located on the third side of the effective area 211, and a fourth peripheral area P4 located on the fourth side of the peripheral area. The first side and the second side are opposite sides in a first direction, and the third side and the fourth side are opposite sides in a second direction. The fourth peripheral area P4 is closer to the bendable area 22 than the third peripheral area P3. The bendable area 22 includes: a middle area PM, a fifth peripheral area P5 located on the first side of the middle area PM, and a sixth peripheral area P6 located on the second side of the middle area PM.
[0111] The end of the data line near the fourth peripheral area P4 is connected to the corresponding data transmission lead S1 located in the third peripheral area P3. The data transmission lead S1 extends through the intermediate area PM to the bonding area 23 and is connected to the corresponding display driver pin.
[0112] It should be noted that, Figures 5A to 5H The first preset direction X is horizontal, the second preset direction Y is vertical, the first side is left, the second side is right, the third side is top, and the fourth side is bottom.
[0113] See Figure 3A , Figure 5A and Figure 5B As shown, in some embodiments, there are two first pin areas Z1 and two second pin areas Z2, and one third pin area Z3. The two first pin areas Z1 are located on different sides of the third pin area Z3 in the first preset direction X, and the two second pin areas Z2 are located on the side of the two first pin areas Z1 away from the third pin area Z3.
[0114] Of all the touch sensing electrodes RX, one end of a portion of the touch sensing electrodes RX near the first peripheral region P1 is connected to the corresponding first touch sensing transmission lead R1 located in the first peripheral region P1, and the other end of the touch sensing electrodes RX near the second peripheral region P2 is connected to the corresponding second touch sensing transmission lead R2 located in the second peripheral region P2. The first touch sensing transmission lead R1 extends through the fifth peripheral region P5 into the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23. The second touch sensing transmission lead R2 extends through the sixth peripheral region P6 into the bonding region 23 and is connected to the corresponding touch sensing application pin.
[0115] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. Part of the first touch driving transmission lead T1 extends through the fifth peripheral region P5 into the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23. Another part of the first touch driving transmission lead T1 extends through the sixth peripheral region P6 into the bonding region 23 and is connected to the corresponding touch driving pin.
[0116] It should be noted that, Figure 5A The example shows the case where the left end of the upper half of the touch sensing electrode RX is connected to the first touch driving transmission lead T1, and the right end of the lower half of the touch sensing electrode RX is connected to the second touch driving transmission lead T2. Figure 5B The illustration shows an example in which multiple touch sensing electrodes RX connected to the first touch driving transmission lead T1 on the left end are alternately arranged with multiple touch sensing electrodes RX connected to the first touch driving transmission lead T1 on the right end.
[0117] In this embodiment, it is only necessary to satisfy that one end of a portion of the touch sensing electrode RX near the first peripheral region P1 is connected to the corresponding first touch sensing transmission lead R1 located in the first peripheral region P1, and the other end of the touch sensing electrode RX near the second peripheral region P2 is connected to the corresponding second touch sensing transmission lead R2 located in the second peripheral region P2.
[0118] See Figure 3B and Figure 5CAs shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one. The first pin area Z1 is located between the second pin area Z2 and the third pin area Z3, and the first pin area Z1 is located on the first side of the third pin area Z3.
[0119] Each touch sensing electrode RX has one end near the first peripheral region P1 connected to the corresponding first touch sensing transmission lead R1 located in the first peripheral region P1. The first touch sensing transmission lead R1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0120] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. Each touch driving electrode TX has one end near the third peripheral region P3 connected to the corresponding second touch driving transmission lead T2 located in the third peripheral region P3. The first touch driving transmission lead T1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23. The second touch driving transmission lead T2 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0121] See also Figure 3B and Figure 5D As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one. The first pin area Z1 is located between the second pin area Z2 and the third pin area Z3, and the first pin area Z1 is located on the first side of the third pin area Z3.
[0122] Each touch sensing electrode RX has one end near the first peripheral region P1 connected to the corresponding first touch sensing transmission lead R1 located in the first peripheral region P1. The first touch sensing transmission lead R1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0123] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. The first touch driving transmission lead T1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0124] See Figure 3C and Figure 5E As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one. The first pin area Z1 is located between the second pin area Z2 and the third pin area Z3, and the first pin area Z1 is located on the second side of the third pin area Z3.
[0125] Each touch sensing electrode RX has one end near the second peripheral region P2 connected to the corresponding second touch sensing transmission lead R2 located in the second peripheral region P2. The second touch sensing transmission lead R2 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0126] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. Each touch driving electrode TX has one end near the third peripheral region P3 connected to the corresponding second touch driving transmission lead T2 located in the third peripheral region P3. The first touch driving transmission lead T1 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23. The second touch driving transmission lead T2 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0127] See Figure 3C and Figure 5F As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one. The first pin area Z1 is located between the second pin area Z2 and the third pin area Z3, and the first pin area Z1 is located on the second side of the third pin area Z3.
[0128] Each touch sensing electrode RX has one end near the second peripheral region P2 connected to the corresponding second touch sensing transmission lead R2 located in the second peripheral region P2. The second touch sensing transmission lead R2 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0129] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. The first touch driving transmission lead T1 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0130] See Figure 3D and Figure 5G As shown, in some embodiments, the number of the first pin area Z1, the second pin area Z2 and the third pin area Z3 is one each, the first pin area Z1 is located on the first side of the third pin area Z3, and the second pin area Z2 is located on the second side of the third pin area Z3.
[0131] Each touch sensing electrode RX has one end near the first peripheral region P1 connected to the corresponding first touch sensing transmission lead R1 located in the first peripheral region P1. The first touch sensing transmission lead R1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0132] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. The first touch driving transmission lead T1 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0133] See Figure 3E and Figure 5H As shown, there is one first pin area Z1, one second pin area Z2 and one third pin area Z3. The first pin area Z1 is located on the second side of the third pin area Z3, and the second pin area Z2 is located on the first side of the third pin area Z3.
[0134] Each touch sensing electrode RX has one end near the second peripheral region P2 connected to the corresponding second touch sensing transmission lead R2 located in the second peripheral region P2. The second touch sensing transmission lead R2 extends through the sixth peripheral region P6 to the bonding region 23 and is connected to the corresponding touch sensing application pin in the bonding region 23.
[0135] Each touch driving electrode TX has one end near the fourth peripheral region P4 connected to the corresponding first touch driving transmission lead T1 located in the fourth peripheral region P4. The first touch driving transmission lead T1 extends through the fifth peripheral region P5 to the bonding region 23 and is connected to the corresponding touch driving pin in the bonding region 23.
[0136] It should be noted that in this embodiment, the touch driving transmission lead and the touch sensing transmission lead are arranged on the same layer. The data transmission lead S1 can be arranged on the same layer as the touch driving transmission lead (for example, the data transmission lead S1 does not overlap with the wiring of the touch driving transmission lead and the touch sensing transmission lead), or the data transmission lead S1 can be arranged on a different layer from the touch driving transmission lead (for example, the data transmission lead S1 needs to overlap with the wiring of the touch driving transmission lead and the touch sensing transmission lead), and the specific settings can be made according to the actual situation.
[0137] It should be noted that in practical applications, the bendable area 22 can be bent so that the binding area 23 is located on the back of the effective area 211 (no corresponding figure is given). This design is beneficial for achieving a narrow bezel in the product.
[0138] Based on the same inventive concept, this disclosure also provides a display device, which includes a touch display module, wherein the touch display module can be the touch display module provided in the previous embodiments, and the details can be found in the previous description, which will not be repeated here.
[0139] The display device in this disclosure can be any product or component with display function, such as an OLED display device, electronic paper, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.
[0140] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. A touch and display driver integrated chip, applied to a touch display panel, characterized in that, The integrated touch and display driver chip includes a touch driver module and a display driver module. The touch driver module is configured to perform touch driving and touch detection on the touch display panel. The display driver module is used to perform display driving on the touch display panel. The touch driver module includes a touch digital unit, which is configured to process digital signals during the touch driving and touch detection processes. The touch digital unit is connected to the display driver module. The touch digital unit is also configured to obtain display-related information from the display driver module and adjust the touch driving frequency during the touch driving process and / or the touch reporting rate during the touch detection process according to the display-related information. The display-related information includes at least one of display driving timing information, screen display data, and panel information of the touch display panel.
2. The touch and display driver integrated chip according to claim 1, characterized in that, The display driver module includes: a timing controller, which stores display driver timing information. The touch digital unit includes a first processing subunit connected to the timing controller. The touch data unit is configured to obtain the display driving timing information from the timing controller and adjust the touch driving frequency according to the display driving timing information to reduce signal interference between the touch driving process and the display driving process.
3. The touch and display driver integrated chip according to claim 2, characterized in that, The timing controller is further configured to obtain the touch reporting rate and / or touch detection result during the touch detection process from the touch digital unit, and adjust the screen refresh rate during the display driving process based on the touch reporting rate and / or touch detection result.
4. The touch and display driver integrated chip according to claim 1, characterized in that, The display driver module includes a register, which stores screen display data. The touch digital unit includes a second processing subunit connected to the register. The touch data unit is configured to obtain the screen display data from the register and adjust the touch reporting rate during the touch detection process according to the screen display data.
5. The touch and display driver integrated chip according to claim 1, characterized in that, The display driver module includes a register, which stores panel information of the touch display panel; The touch digital unit includes a third processing subunit connected to the register. The touch data unit is configured to obtain panel information of the touch display panel from the register and detect whether the firmware code written by the touch driver module matches the touch display panel based on the panel information of the touch display panel.
6. The touch and display driver integrated chip according to any one of claims 1 to 5, characterized in that, The integrated touch and display driver chip also includes: Multiple touch driving pins are respectively connected to the touch driving module, so that the touch driving module can provide touch driving signals to the touch display panel through the touch driving pins; Multiple touch detection pins are connected to the touch driving module, so that the touch driving module can receive touch sensing signals fed back by the touch display panel through the touch detection pins; Multiple display driving pins are respectively connected to the display driving module, so that the display driving module can provide pixel voltage signals to the touch display panel through the display driving pins; The touch and display driver integrated chip is divided into at least one first pin area, at least one second pin area, and at least one third pin area. The first pin area, the second pin area, and the third pin area are arranged along a first preset direction. The touch driving pin is located in the first pin area, the touch detection pin is located in the second pin area, and the display driving pin is located in the third pin area.
7. The touch and display driver integrated chip according to claim 6, characterized in that, The number of the first pin area, the second pin area, and the third pin area is one each, and the first pin area and the second pin area are located on different sides of the third pin area in the first preset direction; or, The number of the first pin area, the second pin area, and the third pin area is one each, and the first pin area is located between the second pin area and the third pin area; or, The number of the first pin area and the number of the second pin area are both 2, and the number of the third pin area is 1. The two first pin areas are located on different sides of the third pin area in the first preset direction, and the two second pin areas are located on the side of the two first pin areas away from the third pin area.
8. A touch display module, characterized in that, include: The touch display panel and the touch and display driver integrated chip as described in any one of claims 1 to 7.
9. The touch display module according to claim 8, characterized in that, The touch display panel includes: a functional area, a bendable area, and a bonding area, wherein the bendable area is located between the functional area and the bonding area, and the touch and display driver integrated chip is fixed to the bonding area; The functional area is provided with a touch function structure and a display function structure. The touch function structure includes: a plurality of touch driving electrodes arranged along a first preset direction and a plurality of touch sensing electrodes arranged along a second preset direction. The touch driving electrodes extend along the second preset direction and the touch sensing electrodes extend along the first preset direction. The display function structure includes: a plurality of data lines arranged along the first preset direction and the data lines extend along the second preset direction.
10. The touch display module according to claim 9, characterized in that, The touch and display driver integrated chip is the touch and display driver integrated chip as described in claim 6; The functional area includes: an effective area, a first peripheral area located on a first side of the effective area, a second peripheral area located on a second side of the effective area, a third peripheral area located on a third side of the effective area, and a fourth peripheral area located on a fourth side of the peripheral area. The first side and the second side are opposite sides in a first direction, and the third side and the fourth side are opposite sides in a second direction. The fourth peripheral area is closer to the bendable area than the third peripheral area. The bendable area includes: a middle area, a fifth peripheral area located on a first side of the middle area, and a sixth peripheral area located on a second side of the middle area. The end of the data line near the fourth peripheral area is connected to the corresponding data transmission lead located in the third peripheral area. The data transmission lead extends through the middle area to the binding area and is connected to the corresponding display driver pin. The number of the first pin area and the number of the second pin area are both 2, and the number of the third pin area is 1. The two first pin areas are located on different sides of the third pin area in the first preset direction, and the two second pin areas are located on the side of the two first pin areas away from the third pin area. Of all the touch sensing electrodes, one end of a portion of the touch sensing electrodes near the first peripheral region is connected to a corresponding first touch sensing transmission lead located within the first peripheral region, and the other end of the touch sensing electrodes near the second peripheral region is connected to a corresponding second touch sensing transmission lead located within the second peripheral region. The first touch sensing transmission lead extends through the fifth peripheral region into the bonding region and is connected to a corresponding touch sensing application pin within the bonding region. The second touch sensing transmission lead extends through the sixth peripheral region into the bonding region and is connected to a corresponding touch sensing application pin. One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region. A portion of the first touch driving transmission lead extends through the fifth peripheral region into the bonding region and is connected to a corresponding touch driving pin in the bonding region. Another portion of the first touch driving transmission lead extends through the sixth peripheral region into the bonding region and is connected to a corresponding touch driving pin. or, The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the first side of the third pin area. One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region, and one end of each of the touch driving electrodes near the third peripheral region is connected to a corresponding second touch driving transmission lead located in the third peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. The second touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. or, The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the first side of the third pin area. One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region. or, The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the second side of the third pin area. One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region, and one end of each of the touch driving electrodes near the third peripheral region is connected to a corresponding second touch driving transmission lead located in the third peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. The second touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region. or, The number of the first pin area, the second pin area and the third pin area is one each. The first pin area is located between the second pin area and the third pin area, and the first pin area is located on the second side of the third pin area. One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region. or, The number of the first pin area, the second pin area, and the third pin area is one each. The first pin area is located on the first side of the third pin area, and the second pin area is located on the second side of the third pin area. One end of each of the touch sensing electrodes near the first peripheral area is connected to the corresponding first touch sensing transmission lead located in the first peripheral area. The first touch sensing transmission lead extends through the fifth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to the corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the sixth peripheral region to the bonding region and is connected to the corresponding touch driving pin in the bonding region. or, The number of the first pin area, the second pin area, and the third pin area is one each. The first pin area is located on the second side of the third pin area, and the second pin area is located on the first side of the third pin area. One end of each of the touch sensing electrodes near the second peripheral area is connected to the corresponding second touch sensing transmission lead located in the second peripheral area. The second touch sensing transmission lead extends through the sixth peripheral area to the bonding area and is connected to the corresponding touch sensing application pin in the bonding area. One end of each of the touch driving electrodes near the fourth peripheral region is connected to a corresponding first touch driving transmission lead located in the fourth peripheral region. The first touch driving transmission lead extends through the fifth peripheral region to the bonding region and is connected to a corresponding touch driving pin in the bonding region.
11. A display device, characterized in that, include: The touch display module as described in any one of claims 8 to 10 above.
Citation Information
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