Touch control processing device, display device and touch control processing method
By adding control pins to the motherboard of the display device, connecting the timing controller and the data processor, outputting the target level to call the corresponding communication timing and data format, the compatibility problem of existing display devices for active pens for multiple transmission protocols is solved, and the expansion and compatibility of the display device is improved.
Patent Information
- Application Number
- CN202510081489.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-05-23
AI Technical Summary
Existing display devices usually only support active pens with a single protocol, which limits the expansion and compatibility of display devices and cannot adapt to multiple transmission protocols of active pens by different manufacturers.
By adding control pins to the motherboard and connecting the timing controller and data processor to these control pins, the motherboard outputs the target level to invoke the corresponding communication timing and data formats, thereby adapting to different transmission protocols.
The compatibility of touch processing devices with active pens for different transmission protocols is realized, and the expansion and compatibility of display devices are improved.
Smart Images
Figure CN120029485A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display technology, and in particular to a touch processing device, a display device, and a touch processing method. Background Art
[0002] With the popularity of display panels with touch functions, capacitive pens have attracted more and more attention because they can simulate finger touch operations and have thinner pen tips, which can achieve more accurate touch operations. In order to further improve the human-computer interaction experience, active pen technology has emerged. However, currently a single display device often only supports active pens with a single protocol, which limits the scalability and compatibility of the display device. Summary of the invention
[0003] The embodiment of the present application provides a touch control processing device, which includes: a mainboard, and a timing controller and a data processor connected to the control pins of the mainboard; wherein:
[0004] The mainboard is used to: output a target level to the timing controller and the data processor through the control pin;
[0005] The timing controller is used to: when receiving the target level, send the target communication timing between the touch processing device and the active pen to the mainboard;
[0006] The data processor is used for processing the data between the touch control processing device and the active pen according to a target data format when receiving the target level.
[0007] Accordingly, an embodiment of the present application provides a display device, which includes the touch processing device as described above.
[0008] Accordingly, an embodiment of the present application provides a touch processing method, which is applied to a touch processing device, wherein the touch processing device comprises: a mainboard, and a timing controller and a data processor connected to a control pin of the mainboard; the method comprises:
[0009] The mainboard outputs a target level to the timing controller and the data processor via the control pin;
[0010] When receiving the target level, the timing controller sends the target communication timing between the touch processing device and the active pen to the mainboard;
[0011] When receiving the target level, the data processor processes the data between the touch control processing device and the active pen according to a target data format.
[0012] The beneficial effects provided by the embodiments of the present application include at least:
[0013] The touch processing device provided in the embodiment of the present application adds control pins to the mainboard, and the timing controller and the data processor are respectively connected to the control pins of the mainboard. The mainboard sends the target level to the timing controller and the data processor respectively through the control pins. When the timing controller receives the target level, it calls the target communication timing corresponding to the target level; when the data processor receives the target level, it calls the target data format corresponding to the target level. The corresponding communication timing and data format are called by the level output by the control pin, so that different levels can call different communication timings and data formats, adapt to the various transmission protocols of the active pen, help the touch processing device support active pens with different transmission protocols, and improve the expansibility and compatibility of the touch processing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of a touch processing device provided in an embodiment of the present application;
[0015] Figure 2 is a schematic diagram of another touch processing device provided in an embodiment of the present application;
[0016] Figure 3 It is a schematic diagram of a touch processing method provided in an embodiment of the present application. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.
[0018] In addition, the "plurality" in the embodiments of the present application refers to two or more. The "first" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not indicate any order, quantity or importance.
[0019] The various embodiments provided in this application are similar, and features in different embodiments may be combined with each other.
[0020] The order of description of the following embodiments is not intended to limit the preferred order of the embodiments.
[0021] See also Figure 1 , Figure 1 is a schematic diagram of a touch processing device provided in an embodiment of the present application. Figure 1 As shown, the touch processing device 100 includes: a mainboard 110, a timing controller 120 and a data processor 130. The timing controller 120 and the data processor 130 are respectively connected to the control pins 111 of the mainboard 110.
[0022] The mainboard 110 is used to: output the target level to the timing controller 120 and the data processor 130 through the control pin 111. The target level corresponds to the target transmission protocol, that is, the target level can indicate the target transmission protocol. The target transmission protocol can be a transmission protocol preset by the manufacturer. For example, the manufacturer can preset the touch processing device 100 to support the target transmission protocol by controlling the mainboard 110 to output the target level. Alternatively, the target transmission protocol can also be a transmission protocol detected in real time. For example, the mainboard 110 can detect the transmission protocol supported by the active pen in real time during the user's use. In some embodiments, the mainboard 110 is also used to: when the target transmission protocol of the active pen is detected, output the target level to the timing controller 120 and the data processor 130 through the control pin 111. Optionally, the mainboard 110 can preset level mapping data, and the level mapping data includes at least two sets of mapping relationships between transmission protocols and levels, so that the mainboard 110 is used to: when the target transmission protocol of the active pen is detected, determine the target level according to the level mapping data; and output the target level to the timing controller 120 and the data processor 130 through the control pin 111.
[0023] The active pen, also known as an active capacitive pen, has many advantages such as higher touch accuracy, built-in circuit, pressure sensing function, etc. The transmission protocol of the active pen may include an uplink transmission protocol for uplink data and / or a downlink transmission protocol for downlink data. Optionally, the uplink transmission protocol includes but is not limited to a prefix field, an uplink command field, and a check field. Among them, the prefix field is used to carry a pseudo-random noise code (Pseudo Random Noise code, PRN code), and the PRN code can be used to adjust the parameters of the active pen or implement other functions; the uplink command field can be used to carry the uplink command sent by the touch processing device 100 to the active pen; the check field may include one or more check bits, and carry the check code for verification. Optionally, the downlink transmission protocol includes but is not limited to a downlink information field and a pressure information field. Among them, the downlink information field can carry the downlink information sent by the active pen to the touch processing device 100, and the pressure information field can carry the pressure information of the touch area of the active pen and the display panel.
[0024] In actual applications, the transmission protocols for active pens from different manufacturers are often different, and the embodiments of this application do not limit the target transmission protocol. Optionally, the target transmission protocol includes but is not limited to: any one of MPP (Microsoft Pen Protocol), USI (Universal Stylus Initiative) and WGP (Wacom Pen Protocol).
[0025] In some embodiments, the active pen can transmit sensing data, and the touch processing device 100 can detect the sensing data transmitted by the active pen to establish a connection with the active pen. Therefore, the mainboard 110 is also used to: when the sensing data of the active pen is received, determine the target transmission protocol of the active pen according to the sensing data. Optionally, for different types of active pens, different transmission protocols are adapted, and the frequencies of the transmitted sensing data are different, so that the mainboard 110 is also used to: when the sensing data of the active pen is received, determine the frequency of the sensing data; determine the target transmission protocol according to the frequency of the sensing data. Of course, the transmission protocol supported by the active pen can also be determined based on other parameters of the sensing data, for example, based on the waveform and energy of the sensing data, etc., which is not limited to the embodiments of the present application.
[0026] The mainboard 110 outputs a target level to the timing controller 120 and the data processor 130 through the control pin 111, and the target level can indicate the target transmission protocol. In the embodiment of the present application, level mapping data can be preset in the mainboard 110, and different transmission protocols correspond to different levels in the level mapping data. Exemplarily, when the target transmission protocol is MPP, the mainboard 110 can output a first level through the control pin 111, when the target transmission protocol is USI, the mainboard 110 can output a second level through the control pin 111, and when the target transmission protocol is WGP, the mainboard 110 can output a third level through the control pin 111. Among them, any two of the first level, the second level and the third level are not the same. For example, the first level is a high level greater than 0, the second level is zero, and the third level is a low level less than 0.
[0027] The timing controller 120 is used to: when receiving the target level, send the target communication timing between the touch processing device 100 and the active pen to the mainboard 110. The target communication timing corresponds to the target level. Optionally, the timing controller 120 can be preset with timing mapping data, and the timing mapping data includes at least two sets of mapping relationships between the levels and the communication timings, so that the timing controller 120 is used to: when receiving the target level, determine the target communication timing between the touch processing device 100 and the active pen according to the timing mapping data; and send the target communication timing to the mainboard.
[0028] The communication timing between the touch processing device 100 and the active pen refers to the time arrangement and order of communication between the touch processing device 100 and the active pen. The communication timing can indicate when the touch processing device 100 sends uplink data and when the active pen sends downlink data, thereby ensuring that the touch operation of the active pen is accurately detected and analyzed by the touch processing device 100, and realizing accurate coordinate positioning and pressure sensing, etc. The communication timing may also involve a synchronization process, that is, the active pen and the touch processing device 100 need to establish a connection in accordance with the signal receiving and sending timing and cycle agreed in the transmission protocol, so as to realize the acquisition of the coordinate signal of the active pen by the touch processing device 100.
[0029] The data processor 130 is used to: when receiving the target level, process the data between the touch processing device 100 and the active pen according to the target data format. The target data format corresponds to the target level. Optionally, format mapping data can be preset in the data processor 130, and the format mapping data includes at least two sets of mapping relationships between levels and data formats, so that the data processor 130 is used to: when receiving the target level, determine the target data format according to the format mapping data; and process the data between the touch processing device 100 and the active pen according to the target data format.
[0030] The data format includes the number of pits filled. The number of pits filled refers to the specific number of signals sent according to the transmission protocol when the active pen sends data to the touch processing device 100, or it can also be called coding, so that the touch processing device 100 can recognize and parse the data from the active pen. Generally, the number of pits filled includes information such as coordinate positioning and pressure encoding, which ensures the integrity and correctness of the data.
[0031] In summary, the touch processing device provided in the embodiment of the present application adds control pins to the mainboard, and the timing controller and the data processor are respectively connected to the control pins of the mainboard. The mainboard sends the target level to the timing controller and the data processor respectively through the control pins. When the timing controller receives the target level, it calls the target communication timing corresponding to the target level; when the data processor receives the target level, it calls the target data format corresponding to the target level. The corresponding communication timing and data format are called by the level output by the control pin, so that different levels can call different communication timings and data formats, adapt to the various transmission protocols of the active pen, help the touch processing device support active pens with different transmission protocols, and improve the extensibility and compatibility of the touch processing device.
[0032] See also Figure 2 , Figure 2 is a schematic diagram of another touch processing device provided in an embodiment of the present application. Figure 2As shown, the touch processing device 200 includes: a mainboard 210, a timing controller 220 and a data processor 230. The timing controller 220 and the data processor 230 are respectively connected to the control pin 211 of the mainboard 210. In addition, the touch processing device 200 also includes a data chip 240, a voltage conversion chip 250, a backlight chip 260, a low voltage regulator 270, a power management chip 280 and a touch modulation chip 290.
[0033] The timing controller 220, also known as TCON (Timing Control), is used to generate communication timings adapted to different transmission protocols. The data processor 230, also known as TMCU (Touch Microcontroller), is used to process data between the touch processing device 200 and the active pen. The data chip 240, also known as SD IC (Source Integrated Circuit), is used to decode the data sent by the timing controller 220 and convert it into grayscale voltage. The voltage conversion chip 250, also known as LS IC (Level Shift Integrated Circuit), is used to output the driving waveform required by GOA (Gate Driver on Array). The backlight chip 260, also known as BL IC (Backlight Integrated Circuit), is used to provide voltage for the backlight. The low voltage regulator 270, also known as LDO (Low Dropout Regulator), is used to provide voltage for the data processor 230. The power management chip 280, also called PMIC (Power Management Integrated Circuit), is used to provide voltage for other chips. The touch modulation chip 290, also called TMIC (Touch modulation Integrated Circuit), is used to generate a modulation waveform.
[0034] Based on the above touch control processing device, accordingly, the embodiment of the present application further provides a display device, which includes: a touch control processing device, and a display panel with a touch function. The touch control processing device can be the above Figure 1 or Figure 2 The touch processing device shown.
[0035] The touch processing device includes: a mainboard, and a timing controller and a data processor connected to the control pins of the mainboard; wherein the mainboard is used to: output a target level to the timing controller and the data processor through the control pins; the timing controller is used to: when receiving the target level, send the target communication timing between the touch processing device and the active pen to the mainboard; the data processor is used to: when receiving the target level, process the data between the touch processing device and the active pen according to the target data format.
[0036] In some embodiments, the timing controller is used to: when receiving the target level, determine the target communication timing between the touch processing device and the active pen according to the timing mapping data; send the target communication timing to the mainboard; wherein the timing mapping data includes a mapping relationship between at least two sets of levels and communication timings.
[0037] In some embodiments, the data processor is used to: when a target level is received, determine the target data format according to the format mapping data; process the data between the touch processing device and the active pen according to the target data format; wherein the format mapping data includes at least two sets of mapping relationships between levels and data formats.
[0038] In some embodiments, the mainboard is further configured to: when a target transmission protocol of the active pen is detected, output a target level to the timing controller and the data processor via a control pin.
[0039] In some embodiments, the mainboard is also used to: when the target transmission protocol of the active pen is detected, determine the target level according to the level mapping data; output the target level to the timing controller and the data processor through the control pin; wherein the level mapping data includes at least two sets of mapping relationships between transmission protocols and levels.
[0040] In some embodiments, the mainboard is further used to: when receiving sensing data from the active pen, determine a target transmission protocol according to the sensing data.
[0041] In some embodiments, the mainboard is further used to: determine the frequency of the sensing data when receiving the sensing data from the active pen; and determine the target transmission protocol according to the frequency of the sensing data.
[0042] For the various components in the touch processing device of the above display device and the corresponding beneficial effects, reference can be made to the detailed description of the touch processing device above, which will not be elaborated here.
[0043] Based on the above touch control processing device, accordingly, the embodiment of the present application also provides a touch control processing method. The touch control processing method can be applied to the above touch control processing device. Figure 3 , the touch processing method comprises the following steps:
[0044] Step 310: The mainboard outputs the target level to the timing controller and the data processor via the control pins;
[0045] Step 320: When receiving the target level, the timing controller sends the target communication timing between the touch processing device and the active pen to the mainboard;
[0046] Step 330: When receiving the target level, the data processor processes the data between the touch processing device and the active pen according to the target data format.
[0047] In some embodiments, the above step 320 includes: when the timing controller receives the target level, it determines the target communication timing between the touch processing device and the active pen according to the timing mapping data; the timing controller sends the target communication timing to the mainboard; wherein the timing mapping data includes a mapping relationship between at least two sets of levels and communication timings.
[0048] In some embodiments, the above step 330 includes: when the data processor receives the target level, the data processor determines the target data format according to the format mapping data; the data processor processes the data between the touch processing device and the active pen according to the target data format; wherein the format mapping data includes at least two sets of mapping relationships between levels and data formats.
[0049] In some embodiments, the above step 310 includes: when the mainboard detects the target transmission protocol of the active pen, the mainboard outputs the target level to the timing controller and the data processor through the control pin.
[0050] In some embodiments, the above step 310 includes: when the mainboard detects the target transmission protocol of the active pen, the mainboard determines the target level according to the level mapping data; outputs the target level to the timing controller and the data processor through the control pin; wherein the level mapping data includes at least two sets of mapping relationships between transmission protocols and levels.
[0051] In some embodiments, the touch control processing method further includes: when the mainboard receives the sensing data from the active pen, determining the target transmission protocol according to the sensing data. In some embodiments, the touch control processing method further includes: when the mainboard receives the sensing data from the active pen, determining the frequency of the sensing data; the mainboard determines the target transmission protocol according to the frequency of the sensing data.
[0052] The specific implementation methods and corresponding beneficial effects of the above operations can be found in the above detailed description of the touch processing device, which will not be elaborated here.
[0053] The above is a detailed introduction to a touch processing device, a display device and a touch processing method provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A touch processing device, characterized in that: The touch control processing device comprises: a mainboard, and a timing controller and a data processor connected to the control pins of the mainboard; wherein, The mainboard is used to: output a target level to the timing controller and the data processor through the control pin; The timing controller is used to: when receiving the target level, send the target communication timing between the touch processing device and the active pen to the mainboard; The data processor is used for processing the data between the touch control processing device and the active pen according to a target data format when receiving the target level.
2. The touch processing device according to claim 1, characterized in that: The timing controller is used for: When the target level is received, determining a target communication timing between the touch processing device and the active pen according to the timing mapping data; Sending the target communication timing to the main board; The timing mapping data includes at least two groups of mapping relationships between levels and communication timings.
3. The touch processing device according to claim 1, characterized in that: The data processor is used to: When the target level is received, determining a target data format according to the format mapping data; Processing data between the touch control processing device and the active pen according to the target data format; The format mapping data includes at least two sets of mapping relationships between levels and data formats.
4. The touch processing device according to claim 1, characterized in that: The mainboard is also used for: When the target transmission protocol of the active pen is detected, the target level is output to the timing controller and the data processor through the control pin.
5. The touch processing device according to claim 4, characterized in that: The mainboard is also used for: When a target transmission protocol of the active pen is detected, determining a target level according to level mapping data; outputting the target level to the timing controller and the data processor via the control pin; The level mapping data includes at least two sets of mapping relationships between transmission protocols and levels.
6. The touch processing device according to claim 4, characterized in that: The mainboard is also used for: When the sensing data of the active pen is received, the target transmission protocol is determined according to the sensing data.
7. The touch processing device according to claim 6, characterized in that: The mainboard is also used for: When receiving the sensing data of the active pen, determining the frequency of the sensing data; The target transmission protocol is determined according to the frequency of the sensing data.
8. A display device, characterized in that: The display device comprises the touch processing device according to any one of claims 1 to 7.
9. A touch processing method, characterized in that: Applied to a touch processing device, the touch processing device comprises: a mainboard, and a timing controller and a data processor connected to the control pins of the mainboard; the method comprises: The mainboard outputs a target level to the timing controller and the data processor via the control pin; When receiving the target level, the timing controller sends the target communication timing between the touch processing device and the active pen to the mainboard; When receiving the target level, the data processor processes the data between the touch control processing device and the active pen according to a target data format.
10. The touch processing method according to claim 9, characterized in that: When receiving the target level, the timing controller sends the target communication timing between the touch processing device and the active pen to the mainboard, including: When receiving the target level, the timing controller determines the target communication timing between the touch processing device and the active pen according to the timing mapping data; The timing controller sends the target communication timing to the mainboard; The timing mapping data includes at least two groups of mapping relationships between levels and communication timings.
11. The touch processing method according to claim 9, characterized in that: When receiving the target level, the data processor processes the data between the touch control processing device and the active pen according to the target data format, including: The data processor determines the target data format according to the format mapping data when receiving the target level; The data processor processes the data between the touch control processing device and the active pen according to the target data format; The format mapping data includes at least two sets of mapping relationships between levels and data formats.