Display device and driving method therefor

Abstract

A display device and a driving method therefor. The display device (100) comprises a display panel (101), a touch panel (102), an application processor (103), and a driving chip (104). In response to a touch operation, the touch panel (102) is used for generating a first touch signal in a first touch scanning period; the application processor (103) is used for processing the first touch signal to generate a first feedback signal and transmitting same to the driving chip (104); on the basis of the first feedback signal, the driving chip (104) is used for controlling the display panel (101) to display an image.

Description

Display device and its driving method

[0001] This application claims priority to Chinese patent application No. 202510014092.7, filed on January 6, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and more specifically to display devices and their driving methods. Background Technology

[0003] In traditional touch display devices, the driver chip has limited storage space and there is a delay in processing touch data, resulting in a long response time for the touch display device. Invention Overview

[0004] The purpose of this invention is to provide a display device and its driving method to improve the problem of long response time in existing touch display devices.

[0005] In a first aspect, this application provides a display device, including:

[0006] Display panel;

[0007] A touch panel, used to generate a first touch signal in response to a touch operation during a first touch scan period;

[0008] Application processor; and

[0009] A driver chip is used to receive the first touch signal and transmit the first touch signal to the application processor;

[0010] The application processor is used to process the first touch signal to generate a first feedback signal and transmit the first feedback signal to the driver chip. The driver chip is used to control the display panel to display an image according to the first feedback signal.

[0011] The touch panel is also used to generate a second touch signal in response to the touch operation during a second touch scan period after the first touch scan period.

[0012] The application processor is configured to output the first feedback signal when the second touch signal is detected;

[0013] The first touch signal and the first feedback signal are transmitted between the driver chip and the application processor via serial communication.

[0014] Secondly, embodiments of this application provide a display device, including:

[0015] Display panel;

[0016] A touch panel, used to generate a first touch signal in response to a touch operation during a first touch scan period;

[0017] Application processor; and

[0018] A driver chip is used to receive the first touch signal and transmit the first touch signal to the application processor;

[0019] The application processor is used to process the first touch signal to generate a first feedback signal and transmit the first feedback signal to the driver chip. The driver chip is used to control the display panel to display an image according to the first feedback signal.

[0020] Thirdly, embodiments of this application also provide a driving method for a display device, including:

[0021] The touch panel responds to touch operations and generates a first touch signal during the first touch scan period;

[0022] The driver chip receives the first touch signal and transmits the first touch signal to the application processor;

[0023] The application processor processes the first touch signal to generate a first feedback signal, and transmits the first feedback signal to the driver chip;

[0024] The driver chip controls the display panel to display the image based on the first feedback signal.

[0025] Beneficial effects: The present invention provides a display device and a driving method thereof. The display device includes: a display panel, an application processor, a driving chip, and a touch panel for generating a first touch signal in response to a touch operation during a first touch scanning period. By configuring the application processor to process the first touch signal to generate a first feedback signal, and then using the driving chip to control the display panel to display a screen according to the first feedback signal, the processing efficiency of the touch signal can be improved, thereby shortening the touch response time of the display device. Attached Figure Description

[0026] The present application will be further described below with reference to the accompanying drawings. It should be noted that the accompanying drawings described below are merely for explaining some embodiments of the present application. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0027] Figure 1 is a cross-sectional view of the display device provided in an embodiment of the present invention.

[0028] Figure 2 is a timing diagram of some signals of the display device provided in an embodiment of the present invention.

[0029] Figure 3 is a timing diagram of some signals of the display device provided in the comparative example of the present invention.

[0030] Figures 4 and 5 are block diagrams of the application processor provided in the embodiments of the present invention.

[0031] Figure 6 is a block diagram of a display device provided in an embodiment of the present invention.

[0032] Figure 7 is a schematic diagram showing the connection between the display device and the computer provided in an embodiment of the present invention.

[0033] Figure 8 is a flowchart of the driving method of the display device provided in an embodiment of the present invention.

[0034] Figure 9 is a flowchart of the driving method of the display device provided in the embodiment of the present invention and the comparative example. Embodiments of the present invention

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified; "electrical connection" indicates that the two are conductive, and is not limited to a direct or indirect connection.

[0037] In addition, it should be noted that the accompanying drawings only provide structures and steps that are closely related to the present invention, and omit some details that are not closely related to the invention. The purpose is to simplify the drawings and make the inventive points clear at a glance, rather than indicating that the actual device is exactly the same as the drawings, and not as a limitation on the actual device.

[0038] The present invention provides a display device, which may include, but is not limited to, the following embodiments and combinations thereof.

[0039] In one embodiment, as shown in Figures 1 and 2, the display device 100 includes: a display panel 101; a touch panel 102, configured to generate a first touch signal during a first touch scanning period Tt1 in response to a touch operation ("generating the first touch signal" is denoted as a first event J1); an application processor 103; and a driver chip 104, configured to receive the first touch signal and transmit the first touch signal to the application processor 103; wherein the application processor 103 is configured to process the first touch signal to generate a first feedback signal, and the driver chip 104 is configured to control the display panel 101 to display an image based on the first feedback signal.

[0040] The display device 100 may be, but is not limited to, a liquid crystal display or a self-emissive display. The touch panel 102 may be located on the side of the display panel 101 near the light-emitting surface to facilitate the sensing of external touch operations, or it may be embedded inside the display panel 101 to reduce the thickness of the display device 100.

[0041] Specifically, the display panel 101 may include multiple gate lines, multiple data lines, and multiple pixel driving circuits. Each sub-pixel is electrically connected to the corresponding pixel driving circuit. Here, we will take as an example that each gate line is electrically connected to multiple pixel driving units corresponding to multiple sub-pixels located in the corresponding row, and each data line is connected to multiple pixel driving units corresponding to multiple sub-pixels located in the corresponding column.

[0042] Specifically, during the display process on the display panel 101, the scan always starts from the upper left corner of the image and moves horizontally forward until it reaches the upper right corner. This process also means that the corresponding scan line transmits the effective gate pulses in the corresponding gate signal from the leftmost sub-pixel of the first row to the rightmost sub-pixel of the first row in sequence. At this point, the scan point quickly returns to the left and restarts scanning in the second row below the first row. The process of the scan point returning between rows is called horizontal blanking, and the duration can be called the row blanking (Hblank) period. After scanning all the sub-pixels of all rows, the scan point returns from the lower right corner of the image to the upper left corner of the image to start a new round of scanning. The process of the scan point returning from the lower right corner of the image to the upper left corner of the image is called vertical blanking, and the duration can be called the field blanking (VBlank) period.

[0043] Specifically, the display device 100 may further include a driver chip 104 for driving the display panel 101 to display images. The driver chip 104 may also generate multiple gate signals that are transmitted to multiple gate lines respectively based on the frame start signal Vsync and the clock signal, and generate multiple data signals that are transmitted to multiple data lines respectively based on the image signal and the clock signal. The driver chip 104 may be a "touch and display driver integrated chip".

[0044] As shown in Figure 2, the frame initiation signal Vsync can include multiple frame initiation pulses. Each frame initiation pulse represents the activation of a corresponding frame. Specifically, multiple gate signals are generated to drive multiple rows of sub-pixels to be activated sequentially. Therefore, the interval between the start times of two adjacent frame initiation pulses represents the display frame period. Here, we take a refresh rate of 60Hz for the display panel 101 as an example, which means the display frame period is (1 / 60) seconds.

[0045] The touch panel 102 may include multiple touch electrodes. The driving chip 104 may send touch driving signals to the touch panel 102 at least twice in each frame cycle to perform at least two touch scans on the multiple touch electrodes (corresponding to two touch frames TP Frame1 and TP Frame2), that is, the touch frame cycle is greater than or equal to 120Hz. The touch driving signal may include multiple sub-touch driving signals, each of which is used to transmit to the corresponding multiple touch electrodes. Here, we take four sub-touch driving signals (TP1, TP2, TP3, TP4) as an example. Then, the multiple touch electrodes in the touch panel 102 can also be divided into four parts (Term1, Term2, Term3, Term4), and each part is controlled by the same sub-touch driving signal (at least one of TP1, TP2, TP3, TP4).

[0046] Furthermore, to avoid interference between the gate signal and the touch signal, multiple gate signals can be sent within the time interval between two adjacent sub-touch driving signals to enable the corresponding multi-row sub-pixels. In order to reduce interference between touch driving signals in different cycles, a noise reduction signal nz can be sent between two adjacent touch driving signals.

[0047] In this embodiment, the number of touch driving signals included in the first touch scanning period Tt1 is not limited, but at least one touch driving signal is required to scan the touch panel 102 at least once in order to generate the first touch signal to determine the current touch operation. Figure 2 illustrates an example where only one touch driving signal is set in the first touch scanning period Tt1, that is, the first touch signal packet is generated by the touch panel 102 under the control of a single drive touch signal.

[0048] Specifically, in this embodiment (Figure 2), compared to the comparative example (Figure 3), after the touch panel 102 generates the first touch signal according to the touch operation during the first touch scanning period Tt1 (i.e., the end time of the first touch scanning period Tt1), the application processor 103 directly processes the first touch signal to generate the first feedback signal (denoted as the third event J3), instead of, as in the comparative example, after the touch panel 102 generates the second touch signal according to the touch operation during the second touch scanning period Tt2 after the first touch scanning period Tt1 (i.e., the end time of the second touch scanning period Tt2), the driver chip 104 processes the second touch signal to generate the second feedback signal (denoted as the fourth event J4).

[0049] On the one hand, in this embodiment, the execution entity that processes the initial touch signal is no longer the driver chip 104 but the application processor 103. The former has limited internal and external interface resources and mainly performs tasks serially, while the latter has abundant internal and external interfaces and multi-core processing, multi-task and multi-thread processing at the same time, so it has higher processing efficiency. On the other hand, it is precisely because the application processor 103 is more powerful that it can directly process the first touch signal generated by the touch panel 102 instead of the second touch signal generated later, further reducing the touch response time of the display device 100.

[0050] In some embodiments, as shown in Figures 1 and 2 and as discussed above, the touch panel 102 is further configured to generate a second touch signal (“generating the second touch signal” is denoted as the second event J2) in response to the touch operation during a second touch scan period Tt2 following the first touch scan period Tt1; wherein, the application processor 103 is configured to output the first feedback signal when the second touch signal is detected.

[0051] That is, in the embodiment shown in FIG2, the touch panel 102 generates a second touch signal during the second touch scanning period Tt2 after the first touch scanning period Tt1. At the same time, the application processor 103 is also processing the first touch signal generated by the touch panel 102, and outputs a first feedback signal (denoted as the fourth event J4) when the second touch signal is detected (i.e., the end time of the second touch scanning period Tt2).

[0052] In the comparative example shown in Figure 3, the driver chip 104 needs to process the second touch signal to generate a second feedback signal after the touch panel 102 generates the second touch signal in the second touch scan period Tt2 after the first touch scan period Tt1 according to the touch operation (i.e., the end time of the second touch scan period Tt2), and then output the second feedback signal (denoted as the fifth event J5).

[0053] Therefore, compared with the driving chip 104 in the comparative example, the application processor 103 of this embodiment can process the touch signal at least one "second touch scanning period Tt2" in advance, and correspondingly, it can also output the corresponding touch signal one "second touch scanning period Tt2" in advance.

[0054] In some embodiments, as shown in Figures 2 and 3, the driving chip 104 is used to scan the touch panel 102 once during the first touch scanning period Tt1, so that the touch panel 102 generates the first touch signal. As discussed above, the first touch signal corresponding to the first touch scanning period Tt1 in this embodiment includes only one touch signal, that is, the touch panel 102 is scanned only once. The touch situation at this time can be understood as a single-point touch, meaning the touch duration is short, and only one scan of the touch panel 102 is needed to generate the first touch signal used to determine the touch operation.

[0055] As discussed above, the display device 100 further includes: the aforementioned driving chip 104, used to provide the aforementioned frame synchronization signal Vsync, wherein the frame synchronization signal Vsync is a periodic signal; wherein the period of the frame synchronization signal Vsync is greater than or equal to the sum of the duration of the first touch scanning period Tt1 and the duration of the second touch scanning period Tt2.

[0056] Based on the above discussion, if the driver chip 104 scans the touch panel 102 once each during the first touch scanning period Tt1 and the second touch scanning period Tt2, as shown in Figures 2 and 3, and the period of the frame synchronization signal Vsync is equal to the sum of the duration of the first touch scanning period Tt1 and the duration of the second touch scanning period Tt2, then the touch frame period can be considered to be half of the display frame period. If the period of the frame synchronization signal Vsync is greater than the sum of the duration of the first touch scanning period Tt1 and the duration of the second touch scanning period Tt2, then the touch frame period can be considered to be less than half of the display frame period.

[0057] In some embodiments, unlike those shown in FIG2 and FIG3, the first touch scanning period Tt1 includes a plurality of first sub-touch scanning periods, and the driving chip 104 is used to scan the touch panel 102 once in each first sub-touch scanning period to make the touch panel 102 generate a first sub-touch signal, the first touch signal including a plurality of first sub-touch signals.

[0058] Based on the above discussion, it can be considered that multiple touch drive signals can be set during the first touch scanning period Tt1 of this embodiment, that is, the touch panel 102 is scanned multiple times. The touch situation at this time can be understood as multi-point touch or long-term touch, that is, the touch lasts for a long time. Multiple scans of the touch panel 102 are required to generate multiple corresponding first sub-touch signals in order to obtain the first touch signal used to determine the touch operation.

[0059] The aforementioned driver chip 104 is also used to provide the aforementioned frame synchronization signal Vsync; wherein the period of the frame synchronization signal Vsync is greater than or equal to the sum of the durations of the two first sub-touch scanning periods.

[0060] Based on the above discussion, if the driver chip 104 scans the touch panel 102 once in each first sub-touch scanning period (i.e., scans the touch panel 102 multiple times within the first touch scanning period Tt1), and the period of the frame synchronization signal Vsync is equal to the sum of the durations of the two first sub-touch scanning periods, then the touch frame period can be considered to be half of the display frame period. If the period of the frame synchronization signal Vsync is greater than the sum of the durations of the two first sub-touch scanning periods, then the touch frame period can be considered to be less than half of the display frame period.

[0061] In summary, within one display frame cycle, the driver chip 104 can scan the touch panel 102 multiple times, meaning that one display frame includes at least two touch frames (TP Frame1, TP Frame2).

[0062] In some embodiments, as shown in Figures 2 and 3, the moment t0 at which the touch operation corresponding to the first touch signal first occurs is within the invalid touch scan period Tt0 before the first touch scan period Tt1. Specifically, although the driver chip 104 sends a touch signal to the touch panel 102 to perform at least a touch scan on multiple touch electrodes during the invalid touch scan period Tt0 where the first touch occurs, the touch panel 102 also generates a corresponding invalid touch signal ("generating an invalid touch signal" is denoted as invalid event J0).

[0063] Understandably, this embodiment takes into account the possibility of accidental touches and the low accuracy of the early time period of the first touch. Therefore, the application processor 103 does not process the invalid touch signal generated during the invalid touch scan period Tt0 when the first touch occurs, but rather processes the first touch signal generated during the first touch scan period Tt1 after the invalid touch scan period Tt0 when the first touch occurs.

[0064] Specifically, as shown in Figures 2 and 3, here we take the duration of each touch scan period (e.g., but not limited to the aforementioned invalid touch scan period Tt0, first touch scan period Tt1, and second touch scan period Tt2) as 5.4ms, and the time interval between two adjacent touch scan periods as 3.1ms. Assuming, for example, that Figures 2 and 3 illustrate the moment of the first touch occurring between the first sub-touch drive signal and the second sub-touch drive signal within the invalid touch scan period Tt0, then the first display frame can include both the invalid touch scan period Tt0 and the first touch scan period Tt1.

[0065] In this embodiment, as shown in Figure 2, the first pulse of the touch interrupt signal TP IRQ indicates that the application processor 103 acquires the first initial touch signal, and the second pulse indicates that the application processor 103 outputs the first target touch signal. The touch response time Rt1 is the time interval between the end time of the first sub-touch drive signal in the invalid touch scanning period Tt0 and the end time of the second touch scanning period Tt2, which is approximately 22.1ms, specifically 5.1+3.1+5.4+3.1+5.4=22.1ms.

[0066] In the comparative example, as shown in Figure 3, the first pulse of the touch interrupt signal TP IRQ indicates that the driver chip 104 outputs the second feedback signal. Since the second feedback signal still needs to be processed by the application processor 103, this pulse can also indicate that the application processor 103 obtains the second feedback signal. The touch response time Rt2 is at least the time interval between the end time of the first sub-touch drive signal within the invalid touch scan period Tt0 and the end time of the driver chip 104 processing the second touch signal, which is approximately 26.6ms, specifically 5.1+3.1+5.4+3.1+5.4+4.5=26.6ms.

[0067] Comparing Figures 2 and 3, it can be seen that there is a difference of at least 4.5ms, which is the sum of the time interval between two adjacent touch scan periods and the duration of the second touch scan period Tt2. Furthermore, as discussed above, since the second feedback signal still needs to be processed by the application processor 103, the touch response time in the comparative example even needs to include the time for the application processor 103 to process the second feedback signal.

[0068] In some embodiments, as shown in FIG4, the application processor 103 includes: a storage module 1031 storing a plurality of touch models; and a processing module 1032 configured to determine the touch model corresponding to the first touch signal from the plurality of touch models based on the first touch signal, and to process the first touch signal according to the corresponding touch model to generate the first feedback signal.

[0069] Since the application processor 103 has a large amount of memory, it can store multiple touch models (including but not limited to single-point touch models, multi-point touch models, gesture models, interference models, and cross-screen interaction models), and each model can include corresponding feature values ​​and processing algorithms. Therefore, users can customize touch gestures to correspond to different response services, thereby realizing personalized services.

[0070] Specifically, the application processor 103 can obtain the corresponding first feature value by parsing the first touch signal, and compare it with multiple feature values ​​to determine its corresponding feature value, thereby determining the corresponding touch model, and further process the first touch signal according to the processing algorithm in the touch model to generate the corresponding first feedback signal.

[0071] As can be seen, since the application processor 103 pre-stores multiple touch models, after acquiring the first touch signal, it can directly determine the corresponding model and call the processing algorithm therein to process the first touch signal. In contrast, the driver chip 104 in the embodiment shown in FIG3 does not store multiple touch models (for example, it needs to use traditional algorithms to perform more steps to process the touch signal indiscriminately), which speeds up the processing speed and reduces the touch response time of the display device 100.

[0072] In some embodiments, as shown in FIG5, the application processor 103 includes an adjustment module 1033, configured to adjust at least one of the data size and data quantity in the first touch signal to generate the first feedback signal. It can be assumed that the application processor 103 integrates artificial intelligence functionality; for example, it can adjust at least one of the data size and data quantity in the first touch signal. The former can be understood as adjusting the numerical value of the data in the first touch signal, and the latter as adjusting the quantity of data in the first touch signal, in preparation for generating the first feedback signal. The specific adjustment algorithm can be understood as being determined through prior training of artificial intelligence on a large amount of sample data.

[0073] Specifically, the adjustment module 1033 can be considered as adjusting at least one of the data size and data volume in the first touch signal to generate the first transition signal. The application processor includes a data processing module 1034, used to learn the first transition signal according to a data processing model to generate the first feedback signal. Here, the adjustment module 1033 performs preprocessing on the first touch signal to generate the first transition signal. Subsequently, the data processing module 1034 still needs to perform deep learning on the first transition signal using the previously trained artificial intelligence model, for example, through multiple iterations of learning and feedback to update the data processing model, and then use the updated data processing model to process the first transition signal, thereby obtaining a more accurate first feedback signal.

[0074] Furthermore, as shown in Figure 5, the application processor 103 includes a monitoring module 1035, used to monitor whether the first feedback signal generated by the data processing module 1034 is correct, and to adjust the data processing model when the first feedback signal is incorrect. It can be understood that the first feedback signal obtained through the above data processing model can be transmitted to the driver chip 104, and then the driver chip 104 controls the display panel 101 to display an image based on the first feedback signal. That is, the result of the first feedback signal is fed back to the user through the display image. The user can make a judgment based on the matching situation between the display image and the corresponding touch situation, and feed the judgment result back to the monitoring module 1035, so that the monitoring module 1035 can monitor the accuracy of the first feedback signal and adjust the data processing model when the first feedback signal is incorrect, further improving the reliability of the subsequent touch response of the display device 100.

[0075] In some embodiments, as shown in FIG6, the driver chip 104 and the application processor 103 transmit the first touch signal and the first feedback signal via serial communication. In this serial communication, bit information can be transmitted one by one via a single wire based on a clock signal, and both the bit information and the clock signal are transmitted from the sender to the receiver. For example, for the serial transmission of binary "01000011", when the clock signal is at the corresponding high level, the receiver receives the current data bit, thereby completing the reception of all bits.

[0076] Understandably, serial communication offers advantages such as low cost, ease of use, and good compatibility, as it only requires a single wire to send multiple bits of information one by one. Serial communication can be SPI communication or I... 2 C communication.

[0077] The application processor 103 can be an integrated circuit chip used to process data tasks on mobile devices and other smart electronic devices, control user interfaces, process graphics and audio, and manage network communications. Specifically, it is used to handle the operating system, applications, and user-device interaction, and may include integrated circuits of a central processing unit, a graphics processing unit, and other processing units. The application processor 103 may be included within the motherboard of the display device 100.

[0078] In some embodiments, as shown in FIG6, the driver chip 104 is located on the array substrate in the display panel 101. The display device 100 further includes a circuit board 105 electrically connected between the driver chip 104, the display panel 101, the touch panel 102 and the application processor 103. The driver chip 104 communicates with the application processor 103 via serial port through the circuit board 105.

[0079] Specifically, the display driver in the driver chip 104 can be electrically connected to the corresponding line in the array substrate by bonding to communicate with the gate line, data line and other lines in the display panel 101. Furthermore, the touch driver in the driver chip 104 can be electrically connected to the corresponding touch electrode in the touch panel through the via between the array substrate and the touch panel 102.

[0080] As discussed above, the touch driver is used to receive the first touch signal and transmit the first touch signal to the application processor 103; the display driver is used to receive the first feedback signal and control the display panel 101 to display the screen according to the first feedback signal.

[0081] In this embodiment, the circuit board 105 may include lines electrically connected to the driver chip 104, the display panel 101, and the touch panel 102. The circuit board 105 is also electrically connected to the application processor 103 via lines. That is, serial communication between the driver chip 104 and the application processor 103 needs to be achieved through the lines in the circuit board 105 and the lines connected between the circuit board 105 and the application processor 103.

[0082] Furthermore, as shown in FIG6, the circuit board 105 includes: a printed circuit board 1052 electrically connected to the application processor 103, including multiple components 1053; and a flexible circuit board 1051 electrically connected between the driver chip 104, the display panel 101, the touch panel 102, and the printed circuit board 1052. The driver chip 104 communicates with the application processor 103 via serial port through the printed circuit board 1052, the flexible circuit board 1051, and the application processor 103.

[0083] Understandably, since the flexible circuit board 1051 connecting the display panel 101 and the printed circuit board 1052 has great flexibility, the printed circuit board 1052 can be fixed to the back of the display panel 101 by bending the flexible circuit board 1051.

[0084] The printed circuit board 1052 may include, but is not limited to, a power manager, which is used to supply power to the driver chip 104, the display panel 101 and the touch panel 102. The multiple components 1053 in the printed circuit board 1052 are used to form at least one circuit to process the voltage generated by the power manager before supplying power to at least one of the driver chip 104, the display panel 101 and the touch panel 102.

[0085] It should be noted that, compared with the prior art, the present invention effectively saves time by having the application processor 103 receive and process the first touch signal, and as can be seen from the above discussion, by having the application processor 103 replace the driver chip 104 to process the signal generated by the touch panel 102 in response to the touch operation.

[0086] Therefore, as shown in Figure 7, by combining the serial port debugging tool 106 (which can essentially be a piece of code), and by using the computer 107 to read whether the data sent by the driver chip 104 to the application processor 103 is the first touch signal, or to read whether the time between the touch operation and the driver chip 104 receiving the application processor 103 after processing the first touch signal and generating the first feedback signal is within 22.1ms, it can be determined whether it is the above-mentioned display device 100 provided by the present invention.

[0087] The display device 100 of the present invention can be applied to, but is not limited to, in-vehicle touch displays and multi-screen displays. As discussed above, because the display device 100 stores multiple touch models, noise signals, such as static electricity, can be identified and quickly filtered out by comparing them with these multiple touch models. Furthermore, the touch models can also include models corresponding to "foreign objects or excessive stress on the display surface." When such situations are detected, the user can be alerted via the interface, thereby preventing damage to the display device 100. Additionally, because the present invention saves on the touch response time of the display device 100, interaction between information on multiple screens is more convenient.

[0088] To better illustrate the above-described display device, the present invention also provides a driving method for the display device, which may include, but is not limited to, the following embodiments and combinations thereof.

[0089] In some embodiments, as shown in FIG8, the driving method for the display device includes, but is not limited to, the following steps and combinations thereof:

[0090] S1, the touch panel responds to the touch operation and generates a first touch signal during the first touch scan period.

[0091] S2, the driver chip receives the first touch signal and transmits the first touch signal to the application processor.

[0092] As discussed above, the driver chip 104 can send at least two touch drive signals to the touch panel 102 in each frame cycle to perform at least two touch scans on the multiple touch electrodes. The first touch scan period Tt1 can include at least one touch drive signal, that is, the first touch signal generated by the touch panel 102 in the first touch scan period Tt1 according to the touch operation is determined by at least one touch scan.

[0093] S3, the application processor processes the first touch signal to generate a first feedback signal and transmits the first feedback signal to the driver chip.

[0094] As discussed above, on the one hand, in this embodiment, the execution entity for processing the initial touch signal is no longer the driver chip 104 but the application processor 103. The former has limited internal and external interface resources and mainly performs tasks serially, while the latter has abundant internal and external interfaces and multi-core processing, allowing for simultaneous processing of multiple tasks and threads, thus achieving higher processing efficiency. On the other hand, precisely because the application processor 103 is more powerful, it can directly process the first touch signal generated by the touch panel 102 instead of the second touch signal generated later, further reducing the touch response time of the display device 100.

[0095] S4, the driver chip controls the display panel to display the image according to the first feedback signal.

[0096] As can be seen from the above discussion, the display screen presented by the display panel 101 controlled by the driver chip 104 according to the first feedback signal corresponds to the touch situation, and can provide feedback on the touch situation to meet the screen requirements of the touch situation.

[0097] Specifically, as shown in Figure 9, which is a flowchart of the comparative example and embodiment described above, and in conjunction with the above discussion and Figure 9, it is noted that in the comparative example, the driver chip 104 processes the second touch signal to generate the second feedback signal only after the "second touch scan" step to generate the second touch signal, and the application processor 103 still needs to process the second feedback signal before releasing it. In this embodiment, after the "first touch scan" step to generate the first touch signal, the application processor 103 can process the first touch signal to generate the first feedback signal, and this process is parallel to the "second touch scan." The application processor 103 releases the first feedback signal when it recognizes the second touch signal generated by the "second touch scan" step.

[0098] It should be noted that the application processor 103, driver chip 104, etc. mentioned in this application can be composed of at least one transistor device, and may also include at least one of capacitors and resistors, as well as wires electrically connected between different components. For specific configuration details, please refer to the above discussion.

[0099] The structure of the display device and its driving method provided in the embodiments of the present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, wherein, include: Display panel; A touch panel, used to generate a first touch signal in response to a touch operation during a first touch scan period; Application processor; as well as A driver chip is used to receive the first touch signal and transmit the first touch signal to the application processor; The application processor is used to process the first touch signal to generate a first feedback signal and transmit the first feedback signal to the driver chip. The driver chip is used to control the display panel to display an image according to the first feedback signal. The touch panel is also used to generate a second touch signal in response to the touch operation during a second touch scan period after the first touch scan period. The application processor is configured to output the first feedback signal when the second touch signal is detected; The first touch signal and the first feedback signal are transmitted between the driver chip and the application processor via serial communication.

2. The display device as claimed in claim 1, wherein, The driver chip is used to scan the touch panel once during the first touch scanning period, so that the touch panel generates the first touch signal.

3. The display device as claimed in claim 2, wherein, The driver chip is also used to provide a frame synchronization signal, which is a periodic signal; The period of the frame synchronization signal is greater than or equal to the sum of the duration of the first touch scanning period and the duration of the second touch scanning period.

4. The display device as claimed in claim 1, wherein, The first touch scanning period includes multiple first sub-touch scanning periods. The driving chip is used to scan the touch panel once in each first sub-touch scanning period to make the touch panel generate a first sub-touch signal. The first touch signal includes multiple first sub-touch signals.

5. A display device, wherein, include: Display panel; A touch panel, used to generate a first touch signal in response to a touch operation during a first touch scan period; Application processor; as well as A driver chip is used to receive the first touch signal and transmit the first touch signal to the application processor; The application processor is used to process the first touch signal to generate a first feedback signal and transmit the first feedback signal to the driver chip. The driver chip is used to control the display panel to display an image according to the first feedback signal.

6. The display device as claimed in claim 5, wherein, The touch panel is also configured to generate a second touch signal in response to the touch operation during a second touch scan period following the first touch scan period; The application processor is configured to output the first feedback signal when the second touch signal is detected.

7. The display device as claimed in claim 6, wherein, The driver chip is used to scan the touch panel once during the first touch scanning period, so that the touch panel generates the first touch signal.

8. The display device as claimed in claim 7, wherein, The driver chip is also used to provide a frame synchronization signal, which is a periodic signal; The period of the frame synchronization signal is greater than or equal to the sum of the duration of the first touch scanning period and the duration of the second touch scanning period.

9. The display device as claimed in claim 6, wherein, The first touch scanning period includes multiple first sub-touch scanning periods. The driving chip is used to scan the touch panel once in each first sub-touch scanning period to make the touch panel generate a first sub-touch signal. The first touch signal includes multiple first sub-touch signals.

10. The display device as claimed in claim 9, wherein, The driver chip is also used to provide a frame synchronization signal, which is a periodic signal; Wherein, the period of the frame synchronization signal is greater than or equal to the sum of the durations of at least two of the first sub-touch scanning periods.

11. The display device as claimed in claim 5, wherein, The driver chip and the application processor transmit the first touch signal and the first feedback signal through serial communication.

12. The display device as claimed in claim 11, wherein, The driver chip is located on the array substrate in the display panel, and the display device further includes: The circuit board is electrically connected between the driver chip, the display panel, the touch panel, and the application processor. The driver chip communicates with the application processor via serial port through the circuit board.

13. The display device as claimed in claim 8, wherein, The circuit board includes: A printed circuit board, including multiple components, is electrically connected to the application processor; The flexible circuit board is electrically connected between the driver chip, the display panel, the touch panel, and the printed circuit board. The driver chip communicates with the application processor via serial port through the printed circuit board, the flexible circuit board, and the printed circuit board.

14. The display device as claimed in claim 5, wherein, The driver chip includes: A touch driver is configured to receive the first touch signal and transmit the first touch signal to the application processor; The display driver is used to receive the first feedback signal and control the display panel to display the image according to the first feedback signal.

15. The display device according to any one of claims 5 to 14, wherein, The application processor includes: The storage module stores multiple touch models; The processing module is configured to determine the touch model corresponding to the first touch signal from a plurality of touch models based on the first touch signal, and to process the first touch signal according to the corresponding touch model to generate the first feedback signal.

16. The display device according to any one of claims 5 to 14, wherein, The application processor includes: An adjustment module is used to adjust at least one of the data size and data quantity in the first touch signal to generate the first feedback signal.

17. The display device as claimed in claim 16, wherein, The adjustment module is used to adjust at least one of the data size and data quantity in the first touch signal to generate the first transition signal, and the application processor includes: The data processing module is used to process the first transition signal according to the data processing model to generate the first feedback signal.

18. The display device as claimed in claim 17, wherein, The application processor includes: The monitoring module is used to monitor whether the first feedback signal generated by the data processing module is correct, and to adjust the data processing model when the first feedback signal is incorrect.

19. The display device according to any one of claims 5 to 14, wherein, The touch operation corresponding to the first touch signal first occurs within an invalid touch scan period prior to the first touch scan period.

20. A driving method for a display device, wherein, include: The touch panel responds to touch operations and generates a first touch signal during the first touch scan period; The driver chip receives the first touch signal and transmits the first touch signal to the application processor; The application processor processes the first touch signal to generate a first feedback signal, and transmits the first feedback signal to the driver chip; The driver chip controls the display panel to display the image based on the first feedback signal.

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