Touch display panel and control method, device and electronic equipment thereof

Abstract

The specification provides a touch display panel and a control method, device and electronic equipment thereof. The method comprises detecting cathode voltage information when the display panel is working, and determining, according to the cathode voltage information, to perform data calibration on touch parameters and / or touch sampling data in a disturbance generation case, eliminating or mitigating interference problems caused by the capacitive coupling between the cathode layer and the touch layer, improving the accuracy of the touch sampling data, and further eliminating or mitigating the false touch problem caused by the capacitive coupling.

Description

Technical Field

[0001] This specification relates to the field of electronic display technology, specifically to a touch display panel and its control method, device, and electronic device. Background Technology

[0002] Nowadays, electronic devices are gradually becoming thinner and lighter, and the driver chips for display screens are also developing towards more integrated and intelligent technical solutions, giving rise to TDDI (Touch and Display Driver Integration) chips.

[0003] Compared to the traditional separate DDIC (Display Driver IC) and TIC (Touch IC) solution, TDDI integrates the DDIC and TIC into the same chip, improving circuit integration, reducing cost and device thickness, and effectively enhancing the synergistic performance of display and touch.

[0004] Among related technologies, OLEDs (Organic Light Emitting Diodes) based on TDDI are prone to problems such as insensitive touch control and false alarms. Summary of the Invention

[0005] To reduce mutual interference between touch and display signals and improve the touch and display performance of the screen, this specification provides a touch display panel and its control method, device, electronic device, storage medium, and computer program product.

[0006] Firstly, this specification provides a method for controlling a touch display panel, including:

[0007] The cathode voltage information of the display panel is detected when it is working, and the touch disturbance is determined based on the cathode voltage information. The touch disturbance is generated by the electrical coupling between the cathode layer and the touch layer of the display panel.

[0008] In the event of touch disturbance, perform data calibration on touch parameters and / or touch sampling data.

[0009] In some implementations, the step of calibrating the touch parameters and / or touch sampling data in the event of a touch disturbance includes:

[0010] In the event of touch disturbance, the touch sampling node is adjusted based on the preset sampling node offset, and touch sampling data is collected based on the adjusted touch sampling node.

[0011] In some implementations, the step of calibrating the touch parameters and / or touch sampling data in the event of a touch disturbance includes:

[0012] In the event of a touch disturbance, the cathode voltage difference before and after the cathode voltage change is determined based on the cathode voltage information.

[0013] Based on a pre-configured mapping table, a target calibration value corresponding to the cathode pressure difference is determined, wherein the mapping table includes the correspondence between the calibration value and the cathode pressure difference;

[0014] The collected touch sampling data is calibrated based on the target calibration value to obtain calibrated touch sampling data.

[0015] In some implementations, the step of calibrating the touch parameters and / or touch sampling data in the event of a touch disturbance includes:

[0016] In the event of a touch disturbance, the disturbance frame interval is determined based on the cathode voltage information;

[0017] During the perturbation frame interval, the acquisition of touch sampling data is paused.

[0018] In some implementations, the cathode voltage information includes voltage amplitude, oscillation frequency, and ripple magnitude; the process of determining whether a touch disturbance has occurred includes at least one of the following:

[0019] Based on the voltage amplitude, the voltage change between adjacent frames is determined, and in response to the voltage change being greater than a first threshold, a touch disturbance is determined to occur.

[0020] In response to the oscillation frequency being greater than the second threshold, a touch disturbance is determined to have occurred;

[0021] In response to the ripple size being greater than a third threshold, a touch disturbance is determined to have occurred.

[0022] In some embodiments, the touch display panel includes an OLED touch panel.

[0023] Secondly, embodiments of this specification provide a control device for a touch display panel, comprising:

[0024] The cathode detection module is configured to detect the cathode voltage information when the display panel is working, and determine whether a touch disturbance is generated based on the cathode voltage information. The touch disturbance is generated by the electrical coupling between the cathode layer and the touch layer of the display panel.

[0025] The data calibration module is configured to perform data calibration on touch parameters and / or touch sampling data in the event of touch disturbance.

[0026] In some implementations, the data calibration module is configured to:

[0027] In the event of touch disturbance, the touch sampling node is adjusted based on the preset sampling node offset, and touch sampling data is collected based on the adjusted touch sampling node.

[0028] In some implementations, the data calibration module is configured to:

[0029] In the event of a touch disturbance, the cathode voltage difference before and after the cathode voltage change is determined based on the cathode voltage information.

[0030] Based on a pre-configured mapping table, a target calibration value corresponding to the cathode pressure difference is determined, wherein the mapping table includes the correspondence between the calibration value and the cathode pressure difference;

[0031] The collected touch sampling data is calibrated based on the target calibration value to obtain calibrated touch sampling data.

[0032] In some implementations, the data calibration module is configured to:

[0033] In the event of a touch disturbance, the disturbance frame interval is determined based on the cathode voltage information;

[0034] During the perturbation frame interval, the acquisition of touch sampling data is paused.

[0035] In some embodiments, the cathode voltage information includes voltage amplitude, oscillation frequency, and ripple magnitude; the cathode detection module is configured to:

[0036] Based on the voltage amplitude, the voltage change between adjacent frames is determined, and in response to the voltage change being greater than a first threshold, a touch disturbance is determined to occur.

[0037] In response to the oscillation frequency being greater than the second threshold, a touch disturbance is determined to have occurred;

[0038] In response to the ripple size being greater than a third threshold, a touch disturbance is determined to have occurred.

[0039] In some embodiments, the touch display panel includes an OLED touch panel.

[0040] Thirdly, embodiments of this specification provide a touch display panel, including:

[0041] processor;

[0042] The memory stores computer instructions that cause the processor to perform the method described in any of the above embodiments.

[0043] Fourthly, embodiments of this specification provide an electronic device that includes the touch display panel of any of the above embodiments.

[0044] Fifthly, embodiments of this specification provide a storage medium storing computer instructions for implementing the methods described in any of the above embodiments.

[0045] Sixthly, embodiments of this specification provide a computer program product for implementing the methods described in any of the above embodiments.

[0046] The control method described in this specification includes detecting cathode voltage information when the display panel is working, and determining, based on the cathode voltage information, performing data calibration on touch parameters and / or touch sampling data when a disturbance occurs, to eliminate or mitigate interference caused by capacitive coupling between the cathode layer and the touch layer, improve the accuracy of touch sampling data, and thereby eliminate or mitigate accidental touch problems caused by capacitive coupling. Attached Figure Description

[0047] To more clearly illustrate the specific embodiments or technical solutions in the prior art of this specification, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this specification. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram illustrating the coupling principle between the cathode layer and the touch layer of an OLED display in related technologies.

[0049] Figure 2 This is a structural block diagram of the touch display panel in some embodiments of this specification.

[0050] Figure 3 This is a flowchart of the control method in some embodiments of this specification.

[0051] Figure 4 This is a schematic diagram illustrating the signal interference between the cathode layer and the touch layer in related technologies.

[0052] Figure 5 These are effect diagrams of the control methods in some embodiments of this specification.

[0053] Figure 6 These are effect diagrams of the control methods in some embodiments of this specification.

[0054] Figure 7 These are effect diagrams of the control methods in some embodiments of this specification.

[0055] Figure 8 This is a structural block diagram of the control device in some embodiments of this specification.

[0056] Figure 9 These are structural block diagrams of electronic devices in some embodiments of this specification. Detailed Implementation

[0057] The technical solutions of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification. Furthermore, the technical features involved in the different embodiments of this specification described below can be combined with each other as long as they do not conflict with each other.

[0058] As electronic devices become more high-end and thinner, OLED (Organic Light Emitting Diode) has gradually become the mainstream display for high-end electronic devices due to its advantages such as thinness, energy saving, and good color performance.

[0059] Taking smartphones as an example, smartphone screens not only need to provide display functions but also touch functions, enabling human-computer interaction through user touch control of the screen. Currently, traditional electronic device screens use a separate DDIC (Display Driver IC) and TIC (Touch IC) solution, meaning that display driving and touch functions are controlled by two independent chips.

[0060] OLED TDDI (Touch and Display Driver Integration) technology integrates traditional DDIC and TIC into the same chip, improving circuit integration, reducing costs and device thickness, and effectively improving the synergy between display and touch. More and more high-end electronic devices are adopting TDDI to realize screen display and touch driving.

[0061] However, in related technologies, TDDI-based OLED screens are prone to touch insensitivity and false alarms, affecting user experience. Through research by the inventors in this case, it was found that the main reason for the touch problems is the mutual interference between the DP (Display Processor) and TP (Touch Processor) lines in the TDDI display panel. The key factor causing this mutual interference is the coupling between the cathode layer and the touch layer of the OLED panel.

[0062] For example Figure 1 The diagram illustrates a portion of the layered structure in an OLED panel. The Touch layer refers to the touch control layer, Touch Tx refers to the transmitter of the touch trace, and Touch Rx refers to the receiver of the touch trace. The TFE layer is the thin-film encapsulation layer between the touch layer and the OLED cathode layer. The OLED cathode layer is the cathode of the OLED panel, used to output the cathode voltage ELVSS to control the light-emitting materials (pixels) in the OLED to emit light. When the OLED display is driven by TDDI, the touch layer needs to collect touch signals at a certain sampling frequency, and the cathode layer needs to drive the pixels to emit light and display images frame by frame.

[0063] Due to the layered structure of OLED display panels, the emitter (Tx) and receiver (Rx) of the touch layer will be capacitively coupled to the cathode layer, forming a structure like... Figure 1 The equivalent capacitances Ctx and Crx are shown. During touch scanning, the equivalent capacitance Ctx / Rrx negatively impacts touch performance. For example, when the cathode voltage ELVSS fluctuates (e.g., voltage amplitude changes, ripple noise, etc.), the touch data acquired during scanning will also fluctuate due to capacitive coupling, thus affecting touch signal processing and causing problems such as insensitive touch, false alarms, and false triggers. Simultaneously, the capacitive coupling effect is also superimposed on the display driver's source voltage, affecting display quality, such as producing display anomalies like horizontal lines or wavy lines.

[0064] Based on this discovery, the embodiments of this specification provide a control method for a touch display panel. The display driving state is determined by detecting the cathode voltage, and in cases where touch disturbances are likely to occur, the interference problem caused by capacitive coupling is eliminated or mitigated by optimizing the acquisition method of touch signals or calibrating the acquired data.

[0065] It is worth noting that the aforementioned technical problems and the causes of these problems were discoveries made by the inventors through creative labor. Therefore, this process should also be regarded as part of the creative labor in the solution described in this specification.

[0066] In some embodiments, the control methods provided in this specification can be applied to the screen module of an electronic device, such as an OLED touch display module, and the method steps can be processed by the module's TDDI (Transformation and Design Integration). The electronic device can be any suitable type of device, such as a smartphone, tablet computer, wearable device, etc., and this specification does not limit it.

[0067] Figure 2 This specification shows structural block diagrams of the touch display panel of an electronic device in some embodiments. The following is a description of these diagrams in conjunction with... Figure 2The structure and working principle of the touch display panel are explained.

[0068] See Figure 2 As shown, the touch display panel includes touch units and display units. Touch units refer to the layers in the OLED screen used to implement touch-related functions, such as the aforementioned touch layer. By wiring the touch layer, touch signals across the entire panel area are sampled. Display units refer to the layers in the OLED screen used to implement display-related functions, such as the anode layer, cathode layer, and pixel layer.

[0069] The processor is the core processor used to drive the display and touch functions of the display panel, and can be the aforementioned TDDI chip. DP ARP stands for Display Processor Application Register, which refers to the display processor application register. Its main function is to interact with the external PMIC (Power Management IC). The PMIC is the power management chip of the electronic device, responsible for managing various power-related functions in the electronic device.

[0070] When displaying images on the display panel, the processor sends a pulse signal via DP ARP to the PMIC using the swire protocol. After receiving the pulse signal, the PMIC generates a cathode voltage ELVSS with a corresponding voltage amplitude and provides it to the display unit, thereby controlling each pixel in the display unit to emit light and generate the corresponding image.

[0071] In the embodiments described in this specification, during the display process, the detection module can be used to collect the voltage information of the cathode voltage ELVSS output by the PMIC. The purpose of collecting the ELVSS voltage information is to detect whether the state of ELVSS is affected by conditions that may interfere with the touch signal, such as amplitude changes, increased ripple, or changes in oscillation amplitude. Thus, the processor can perform corresponding avoidance and logic processing on the signal interference problem based on the ELVSS voltage information, eliminate or mitigate the impact on the touch signal, and improve touch accuracy.

[0072] See Figure 3 As shown, in some embodiments, the control method for the touch display panel provided in this specification includes:

[0073] S310: Detect the cathode voltage information when the display panel is working, and determine whether touch disturbance is generated based on the cathode voltage information.

[0074] S320. In the event of touch disturbance, perform data calibration on touch parameters and / or touch sampling data.

[0075] Based on the aforementioned working principle of the touch display panel, when the display panel is working, the display function is controlled by the PMIC to output a cathode voltage ELVSS to the display unit to control the pixels to emit light, thereby displaying images frame by frame. The touch function is controlled by TTDI to control the touch unit to scan at a certain touch sampling rate, collecting touch sampling data (Touch Rawdata), and determining the touch operation and touch position by analyzing the touch sampling data.

[0076] Combination Figure 2 As shown, during the operation of the display panel, the detection module can continuously detect the cathode voltage ELVSS output by the PMIC to obtain cathode voltage information, including but not limited to the cathode voltage amplitude, oscillation frequency, ripple magnitude, etc.

[0077] Voltage amplitude represents the magnitude of the cathode voltage ELVSS. Different voltage amplitudes correspond to different pixel brightness. Oscillation frequency represents the number of fluctuations in the cathode voltage ELVSS within a certain period of time. ELVSS fluctuations exhibit periodic changes, and excessive oscillation frequency may lead to uneven display brightness or flickering. Ripple refers to the AC component superimposed on the cathode voltage ELVSS, which is caused by voltage fluctuations due to power conversion or load changes. Excessive ripple may cause screen flickering and affect visual effects.

[0078] For example Figure 4 The timing diagram shows the touch data distortion caused by capacitive coupling during the operation of the display panel. Figure 4 Taking line synchronization as an example, Hsync represents the line synchronization signal.

[0079] See Figure 4 As shown, when ELVSS is disturbed at positions a and b, it overlaps with the sampling (high-level sampling) of the touch transmission signal Touch Tx. At this time, due to the coupling phenomenon between Touch Tx and the cathode voltage ELVSS, the touch sampling data Touch Rawdata will experience potential jumps. Consequently, when performing touch judgment based on distorted touch sampling data, misjudgments are likely to occur.

[0080] Based on this, in the embodiments of this specification, after the current cathode voltage information is detected by the detection module, it is necessary to determine whether a touch disturbance has occurred, that is, whether the touch sampling data is easily distorted due to capacitive coupling between the cathode layer and the touch layer.

[0081] In the embodiments described in this specification, the process of determining whether a touch disturbance has occurred may include the following three dimensions:

[0082] 1. Is the voltage amplitude change too large?

[0083] As can be seen from the foregoing, for example, if the brightness difference between two adjacent frames is large, the cathode voltage ELVSS will change significantly. Due to the effect of capacitive coupling, the fluctuation of touch sampling data will also be amplified.

[0084] Based on this, in some implementations, the voltage change can be determined by the voltage amplitude of ELVSS in two or more adjacent frames collected by the detection module. The voltage change can be represented by indicators such as voltage change rate and voltage difference.

[0085] The voltage change is then compared to a pre-set first threshold, which represents the critical value for triggering touch disturbance. For example, if the voltage change rate is greater than the first threshold, it indicates a large change in the cathode voltage ELVSS, which is likely to interfere with touch control, thus confirming the occurrence of touch disturbance. Conversely, if the voltage change rate is less than or equal to the first threshold, it indicates a small change in the cathode voltage ELVSS, which is unlikely to interfere with touch control, thus confirming the absence of touch disturbance. The specific value of the first threshold can be selected according to the specific scenario requirements, and this manual does not impose any restrictions on it.

[0086] 2. Is the oscillation frequency of ELVSS too high?

[0087] As mentioned above, the oscillation frequency refers to the number of fluctuations in the cathode voltage ELVSS within a certain time period. Therefore, a second threshold can be preset for the oscillation frequency, representing the critical value at which touch disturbances occur. For example, if the oscillation frequency is greater than the second threshold, it indicates that the cathode voltage ELVSS oscillation frequency is too high and easily interferes with touch control, thus confirming the occurrence of touch disturbances. Conversely, if the oscillation frequency is less than or equal to the second threshold, it indicates that the cathode voltage ELVSS changes relatively little and is unlikely to interfere with touch control, thus confirming the absence of touch disturbances. The specific value of the second threshold can be selected according to the specific needs of the scenario; this specification does not impose any restrictions on it.

[0088] 3. Is the ripple too large?

[0089] As mentioned above, ripple refers to the AC component superimposed on the cathode voltage ELVSS, i.e., the noise component. Therefore, a third threshold can be pre-set for the ripple magnitude, representing the critical value for generating touch disturbance. For example, if the ripple magnitude is greater than the third threshold, it indicates that the cathode voltage ELVSS noise is high, easily interfering with touch control, thus confirming the occurrence of touch disturbance. Conversely, if the ripple magnitude is less than or equal to the third threshold, it indicates that the cathode voltage ELVSS noise is low, unlikely to interfere with touch control, thus confirming the absence of touch disturbance. The specific value of the third threshold can be selected according to specific scenario requirements; this specification does not impose any restrictions on it.

[0090] In the embodiments described in this specification, the above three judgment conditions can be implemented simultaneously; that is, satisfying any one of them is sufficient to determine that a touch disturbance has occurred. In other embodiments, any one or two of the above three judgment conditions can also be implemented, and this specification does not impose any restrictions on this.

[0091] If, through the aforementioned S310 process, it is determined that a touch disturbance has occurred, it indicates that the current cathode voltage ELVSS is prone to interfering with the touch sampling data, leading to data distortion and consequently affecting the touch judgment result. Therefore, it is necessary to optimize and calibrate the touch sampling and data. Optimization and calibration strategies can include the following three:

[0092] 1. Adjust the touch sampling node to avoid coupling disturbances.

[0093] As mentioned above, the touch data sampling process is performed according to a certain touch sampling rate. For example, a touch sampling rate of 50Hz means that 50 touch samples are taken per second, and the time interval between two adjacent touch samples is 20ms. The touch parameters in this specification include the touch sampling rate.

[0094] Combination Figure 4 and Figure 5 As shown, assuming a touch disturbance is detected at time a, the touch sampling that should have been performed at time a can be delayed by a time t0, and the high-level touch signal sampling can be performed at time c. That is, by presetting a sampling node offset t0, when a touch disturbance is detected, the current touch sampling node is delayed by the offset t0, and then data sampling is performed according to the changed touch sampling node.

[0095] For example, in one example, assuming the sampling node offset t0 = 10ms, see [link to example]. Figure 5 As shown, a touch disturbance is detected at time a. The touch sampling that should have been performed at time a is delayed by 10ms and performed at time c. Then, periodic data sampling continues at 20ms intervals.

[0096] It is understood that the specific value of the sampling node offset t0 in the embodiments of this specification is not limited and is not limited to 10ms in the example above. Those skilled in the art can select it according to the specific needs of the scenario, and this specification will not elaborate further. For example, in a guiding embodiment, it can be determined according to the display duration of a frame of image, as long as it can ensure that the touch sampling node can avoid the process of touch disturbance.

[0097] contrast Figure 4 and Figure 5As can be seen in the embodiments of this specification, when a touch disturbance is detected, the touch sampling node is adjusted according to the offset, so that the touch sampling node can avoid the disturbance process, thereby collecting touch sampling data when the cathode voltage is relatively stable, and improving the data accuracy.

[0098] 2. Perform data calibration on the collected Touch Rawdata.

[0099] As mentioned above, the reason for touch malfunction or accidental touch is the distortion of touch raw data caused by capacitive coupling. Therefore, the touch parameters can be left unchanged, and data can still be collected according to the original touch sampling nodes. Then, the distorted data collected can be calibrated.

[0100] In some implementations, considering that voltage variations in different cathode voltages (ELVSS) result in varying coupling effects and thus different degrees of data distortion, the correspondence between different cathode voltage differences and calibration values ​​can be pre-determined through experiments or other means, and a mapping table can be established based on this correspondence.

[0101] For example, in one instance, multiple sets of correspondences between cathode differential pressure and calibration values ​​can be obtained in advance through experimental testing. Then, a mapping table can be generated through interpolation, data fitting, and other methods, and the mapping table can be stored in the memory of TDDI.

[0102] If the aforementioned method confirms the occurrence of touch disturbance, the cathode voltage difference resulting from the cathode voltage change can be determined based on the detected cathode voltage information. Then, a pre-stored mapping table is retrieved, and the target calibration value corresponding to the current cathode voltage difference is determined by looking up the table. Finally, the sampled touch data (TouchRawdata) is calibrated using the target calibration value.

[0103] For example Figure 6 In the example, the dashed Touch Rawdata represents the data before calibration, while the solid Touch Rawdata represents the data after calibration. By comparison, it can be seen that data calibration can effectively reduce data errors and improve the accuracy of touch sampling data.

[0104] 3. Do not sample touch data in areas prone to disturbance.

[0105] It's understandable that the touch sampling rate of modern electronic devices typically reaches tens to hundreds of hertz. Not sampling data at certain frame sampling nodes has almost no impact on touch functionality, and users won't perceive any noticeable difference. Therefore, it's worth considering pausing touch data sampling within the touch disturbance range.

[0106] For example, in order to optimize the power consumption of the display panel, DPC (Dynamic Power Control) technology is used in display drivers. DPC refers to dynamically adjusting the ELVSS voltage according to the brightness requirements of the displayed content.

[0107] For example, in one scenario, when a user drags the brightness bar to adjust the screen brightness, the PMIC dynamically adjusts the output ELVSS voltage value based on the swire signal sent by DP ARP. See also Figure 7 As shown, Vsync represents the vertical synchronization signal, TP frame represents the touch sampling data stream, and times ① and ② are the times when the brightness is adjusted. At this time, DP ARP sends a swire signal to PMIC, and the ELVSS output by PMIC changes. Due to capacitive coupling, touch data distortion is easily caused.

[0108] Taking time ① as an example, through the aforementioned Figure 3 The method involves detecting touch disturbances and determining the disturbance frame interval based on the detected cathode voltage information. This interval may include one or more touch sampling intervals. Subsequently, for each touch sampling interval within the disturbance frame interval, touch data sampling is paused, effectively skipping intervals prone to touch disturbances and only collecting touch data when the cathode voltage is stable. For example... Figure 7 Touch sampling data (Touch Rawdata) will no longer be collected from the touch sampling intervals K1 and K2 in the data.

[0109] As can be seen from the above, in the embodiments of this specification, the sampling intervals that are prone to touch interference are detected by cathode voltage, and touch data sampling is suspended in these unstable intervals, thereby improving the accuracy of touch sampling data and thus improving touch accuracy.

[0110] In addition, it is worth noting that any two or three of the above three optimization strategies can be implemented, or any one of them can be implemented at will; this manual does not impose any restrictions on this.

[0111] In some embodiments, this specification provides a control device for a touch display panel, which can be applied to the aforementioned electronic devices. See also... Figure 8 As shown, the device includes:

[0112] The cathode detection module 10 is configured to detect the cathode voltage information when the display panel is working, and determine whether a touch disturbance is generated based on the cathode voltage information. The touch disturbance is generated by the electrical coupling between the cathode layer and the touch layer of the display panel.

[0113] The data calibration module 20 is configured to perform data calibration on touch parameters and / or touch sampling data in the event of touch disturbance.

[0114] In some embodiments, the data calibration module 20 is configured to:

[0115] In the event of touch disturbance, the touch sampling node is adjusted based on the preset sampling node offset, and touch sampling data is collected based on the adjusted touch sampling node.

[0116] In some embodiments, the data calibration module 20 is configured to:

[0117] In the event of a touch disturbance, the cathode voltage difference before and after the cathode voltage change is determined based on the cathode voltage information.

[0118] Based on a pre-configured mapping table, a target calibration value corresponding to the cathode pressure difference is determined, wherein the mapping table includes the correspondence between the calibration value and the cathode pressure difference;

[0119] The collected touch sampling data is calibrated based on the target calibration value to obtain calibrated touch sampling data.

[0120] In some embodiments, the data calibration module 20 is configured to:

[0121] In the event of a touch disturbance, the disturbance frame interval is determined based on the cathode voltage information;

[0122] During the perturbation frame interval, the acquisition of touch sampling data is paused.

[0123] In some embodiments, the cathode voltage information includes voltage amplitude, oscillation frequency, and ripple magnitude; the cathode detection module is configured to:

[0124] Based on the voltage amplitude, the voltage change between adjacent frames is determined, and in response to the voltage change being greater than a first threshold, a touch disturbance is determined to occur.

[0125] In response to the oscillation frequency being greater than the second threshold, a touch disturbance is determined to have occurred;

[0126] In response to the ripple size being greater than a third threshold, a touch disturbance is determined to have occurred.

[0127] In some embodiments, the touch display panel includes an OLED touch panel.

[0128] In some embodiments, this specification provides a touch display panel, including:

[0129] processor;

[0130] The memory stores computer instructions that cause the processor to perform the method described in any of the above embodiments.

[0131] In some embodiments, this specification provides an electronic device that includes the touch display panel of any of the above embodiments. The electronic device can be any suitable type of device, such as a smartphone, tablet, wearable device, etc., and this specification does not impose any limitations.

[0132] In some embodiments, this specification provides a storage medium storing computer instructions for implementing the methods described in any of the above embodiments.

[0133] In some embodiments, this specification provides a computer program product for implementing the methods described in any of the above embodiments.

[0134] Figure 9 The diagram illustrates the electronic device structure in some embodiments of this specification, which will be discussed below in conjunction with... Figure 9 This specification describes some embodiments of electronic devices.

[0135] Reference Figure 9 The electronic device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power supply component 1806, a multimedia component 1808, an audio component 1810, an input / output (I / O) interface 1812, a sensor component 1816, and a communication component 1818.

[0136] Processing component 1802 typically controls the overall operation of electronic device 1800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1802 may include one or more processors 1820 to execute instructions. Furthermore, processing component 1802 may include one or more modules to facilitate interaction between processing component 1802 and other components. For example, processing component 1802 may include a multimedia module to facilitate interaction between multimedia component 1808 and processing component 1802. As another example, processing component 1802 may read executable instructions from memory to implement relevant functions of the electronic device.

[0137] Memory 1804 is configured to store various types of data to support the operation of electronic device 1800. Examples of this data include instructions for any application or method operating on electronic device 1800, contact data, phonebook data, messages, pictures, videos, etc. Memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0138] Power supply component 1806 provides power to various components of electronic device 1800. Power supply component 1806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1800.

[0139] The multimedia component 1808 includes a display screen that provides an output interface between the electronic device 1800 and the user. In some embodiments, the multimedia component 1808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0140] Audio component 1810 is configured to output and / or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive external audio signals when electronic device 1800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1804 or transmitted via communication component 1818. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[0141] I / O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0142] Sensor assembly 1816 includes one or more sensors for providing state assessments of various aspects of electronic device 1800. For example, sensor assembly 1816 may detect the on / off state of electronic device 1800, the relative positioning of components such as the display and keypad of electronic device 1800, changes in position of electronic device 1800 or a component of electronic device 1800, the presence or absence of user contact with electronic device 1800, the orientation or acceleration / deceleration of electronic device 1800, and temperature changes of electronic device 1800. Sensor assembly 1816 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1816 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1816 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0143] Communication component 1818 is configured to facilitate wired or wireless communication between electronic device 1800 and other devices. Electronic device 1800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 5G, or 6G, or combinations thereof. In one exemplary embodiment, communication component 1818 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1818 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0144] In an exemplary embodiment, the electronic device 1800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0145] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the embodiments. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom remain within the scope of protection created by this specification.

Claims

1. A control method for a touch display panel, characterized in that, include: The cathode voltage information of the display panel is detected when it is working, and the touch disturbance is determined based on the cathode voltage information. The touch disturbance is generated by the electrical coupling between the cathode layer and the touch layer of the display panel. In the event of touch disturbance, perform data calibration on touch parameters and / or touch sampling data.

2. The method according to claim 1, characterized in that, In the event of touch disturbance, data calibration of touch parameters is performed, including: In the event of touch disturbance, the touch sampling node is adjusted based on the preset sampling node offset, and touch sampling data is collected based on the adjusted touch sampling node.

3. The method according to claim 1, characterized in that, In the event of touch disturbance, data calibration is performed on the touch sampling data, including: In the event of a touch disturbance, the cathode voltage difference before and after the cathode voltage change is determined based on the cathode voltage information. Based on a pre-configured mapping table, a target calibration value corresponding to the cathode pressure difference is determined, wherein the mapping table includes the correspondence between the calibration value and the cathode pressure difference; The collected touch sampling data is calibrated based on the target calibration value to obtain calibrated touch sampling data.

4. The method according to claim 1, characterized in that, In the event of touch disturbance, data calibration is performed on the touch sampling data, including: In the event of a touch disturbance, the disturbance frame interval is determined based on the cathode voltage information; During the perturbation frame interval, the acquisition of touch sampling data is paused.

5. The method according to any one of claims 1 to 4, characterized in that, The cathode voltage information includes voltage amplitude, oscillation frequency, and ripple magnitude; the process of determining whether a touch disturbance has occurred includes at least one of the following: Based on the voltage amplitude, the voltage change between adjacent frames is determined, and in response to the voltage change being greater than a first threshold, a touch disturbance is determined to occur. In response to the oscillation frequency being greater than the second threshold, a touch disturbance is determined to have occurred; In response to the ripple size being greater than a third threshold, a touch disturbance is determined to have occurred.

6. The method according to any one of claims 1 to 4, characterized in that, The touch display panel includes an OLED touch panel.

7. A control device for a touch display panel, characterized in that, include: The cathode detection module is configured to detect the cathode voltage information when the display panel is working, and determine whether a touch disturbance is generated based on the cathode voltage information. The touch disturbance is generated by the electrical coupling between the cathode layer and the touch layer of the display panel. The data calibration module is configured to perform data calibration on touch parameters and / or touch sampling data in the event of touch disturbance.

8. A touch display panel, characterized in that, include: processor; A memory storing computer instructions for causing a processor to perform the method according to any one of claims 1 to 6.

9. An electronic device, characterized in that, Includes the touch display panel according to claim 6.

10. A computer program product, characterized in that, The computer program product is used to implement the method according to any one of claims 1 to 6.

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