Display device and driving method thereof

Abstract

The invention provides a display device and a driving method thereof.The display device comprises a display panel, a touch panel, an application processor and a driving chip, the touch panel is used for responding to touch operation, generating a first touch signal in a first touch scanning period, and generating a second touch signal in a second touch scanning period; the application processor is used for processing the first touch signal to generate a first feedback signal and transmitting the first feedback signal to the driving chip, the driving chip is used for controlling the display panel to display a picture according to the first feedback signal, and the touch response time of the display device is shortened.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display device and a driving method thereof. Background Art

[0002] In the conventional solution of the touch display device, the storage space of the driver chip is limited, and there is a delay when processing the touch data, resulting in a long response time of the touch display device. Summary of the invention

[0003] An object of the present invention is to provide a display device and a driving method thereof, so as to improve the problem of long response time of the existing touch display device.

[0004] An embodiment of the present invention provides a display device, including:

[0005] Display panel;

[0006] The touch panel is used to generate a first touch signal in a first touch scanning period in response to a touch operation;

[0007] application processor; and

[0008] a driving chip, configured to receive the first touch signal and transmit the first touch signal to the application processor;

[0009] The application processor is used for processing the first touch signal to generate a first feedback signal, and transmitting the first feedback signal to the driving chip, and the driving chip is used for controlling the display panel to display an image according to the first feedback signal.

[0010] In some embodiments, the touch panel is further configured to generate a second touch signal in a second touch scanning period after the first touch scanning period in response to the touch operation;

[0011] The application processor is configured to output the first feedback signal when the second touch signal is recognized.

[0012] In some embodiments, the driving 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.

[0013] In some embodiments, the driving chip is further used to provide a frame synchronization signal, and the frame synchronization signal is a periodic signal;

[0014] 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.

[0015] In some embodiments, the first touch signal and the first feedback signal are transmitted between the driver chip and the application processor via serial port communication.

[0016] In some embodiments, the driving chip is located on an array substrate in the display panel, and the display device further includes:

[0017] The circuit board is electrically connected between the driving chip, the display panel, the touch panel and the application processor. The driving chip communicates with the application processor via a serial port via the circuit board.

[0018] In some embodiments, the circuit board comprises:

[0019] A printed circuit board, including a plurality of components, electrically connected to the application processor;

[0020] The flexible circuit board is electrically connected between the driving chip, the display panel, the touch panel and the printed circuit board. The driving chip performs serial communication with the application processor through the printed circuit board, the flexible circuit board and the application processor.

[0021] In some embodiments, the driver chip includes:

[0022] a touch driver, configured to receive the first touch signal and transmit the first touch signal to the application processor;

[0023] The display driver is used to receive the first feedback signal and control the display panel to display an image according to the first feedback signal.

[0024] In some embodiments, the first touch scan period includes multiple first sub-touch scan periods, and the driving chip is used to scan the touch panel once in each of the first sub-touch scan periods so that the touch panel generates a first sub-touch signal, and the first touch signal includes multiple first sub-touch signals.

[0025] In some embodiments, the driving chip is further used to provide a frame synchronization signal, and the frame synchronization signal is a periodic signal;

[0026] 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.

[0027] In some embodiments, the application processor includes:

[0028] A storage module storing a plurality of touch models;

[0029] A processing module is used to determine the touch model corresponding to the first touch signal from the multiple touch models according to the first touch signal, and to process the first touch signal according to the corresponding touch model to generate the first feedback signal.

[0030] In some embodiments, the application processor includes:

[0031] The adjustment module is used to adjust at least one of the data size and the data amount in the first touch signal to generate the first feedback signal.

[0032] In some embodiments, the adjustment module is used to adjust at least one of the data size and the data amount in the first touch signal to generate the first transition signal, and the application processor includes:

[0033] A data processing module is used to process the first transition signal according to a data processing model to generate the first feedback signal.

[0034] In some embodiments, the application processor includes:

[0035] 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.

[0036] In some embodiments, the moment when the touch operation corresponding to the first touch signal first occurs is within an invalid touch scanning period before the first touch scanning period.

[0037] An embodiment of the present invention also provides a method for driving a display device, including:

[0038] The touch panel generates a first touch signal in a first touch scanning period in response to a touch operation;

[0039] The driving chip receives the first touch signal and transmits the first touch signal to the application processor;

[0040] The application processor processes the first touch signal to generate a first feedback signal, and transmits the first feedback signal to the driving chip;

[0041] The driving chip controls the display panel to display an image according to the first feedback signal.

[0042] 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 a first touch scanning period in response to a touch operation. By setting the application processor to process the first touch signal to generate a first feedback signal, and then the driving chip is used to control the display panel to display a picture 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A cross-sectional view of a display device provided by an embodiment of the present invention.

[0044] Figure 2 A timing diagram of some signals of a display device provided by an embodiment of the present invention.

[0045] Figure 3 A timing diagram of some signals of a display device provided as a comparative example of the present invention.

[0046] Figure 4 and Figure 5 A block diagram of an application processor provided in an embodiment of the present invention.

[0047] Figure 6 A block diagram of a display device provided by an embodiment of the present invention.

[0048] Figure 7 A schematic diagram of the connection between a display device and a computer provided in an embodiment of the present invention.

[0049] Figure 8 The present invention provides a flow chart of a method for driving a display device according to an embodiment of the present invention.

[0050] Fig. 9 The flowchart is a method for driving a display device provided in an embodiment and a comparative example of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0052] The terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined, and "electrically connected" means that there is conduction between the two, and is not limited to direct connection or indirect connection.

[0053] In addition, it should be noted that the 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 invention clear at a glance, rather than to indicate that the actual device is exactly the same as the attached drawings. Figure 1 The same is not a limitation of the actual device.

[0054] The present invention provides a display device, which may include but is not limited to the following embodiments and combinations of the following embodiments.

[0055] In one embodiment, in combination Figure 1 and Figure 2 As shown, the display device 100 includes: a display panel 101; a touch panel 102, which is used to generate a first touch signal in a first touch scanning period Tt1 in response to a touch operation ("generating a first touch signal" is recorded as a first event J1); an application processor 103; and a driver chip 104, which is used to receive the first touch signal and transmit the first touch signal to the application processor 103; wherein the application processor 103 is used to process the first touch signal to generate a first feedback signal, and the driver chip 104 is used to control the display panel 101 to display a picture according to the first feedback signal.

[0056] The display device 100 may be, but is not limited to, a liquid crystal display device or a self-luminous display device. The touch panel 102 may be located on a side of the display panel 101 close to the light emitting surface to facilitate sensing external touch operations, and may also be embedded in the display panel 101 to reduce the thickness of the display device 100.

[0057] 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, and here is taken as an example that each gate line is electrically connected to multiple pixel driving units corresponding to multiple sub-pixels located in a corresponding row, and each data line is connected to multiple pixel driving units corresponding to multiple sub-pixels located in a corresponding column.

[0058] Specifically, in the process of displaying the picture on the display panel 101, the scanning always starts from the upper left corner of the image and moves forward horizontally until it reaches the upper right corner of the image. This process is that the corresponding scanning line transmits the corresponding effective gate pulse in the gate signal from the leftmost sub-pixel of the 1st row to the rightmost sub-pixel of the 1st row in sequence. At this point, the scanning point quickly returns to the left and restarts scanning in the 2nd row below the 1st row. The return process of the scanning point between rows is called horizontal blanking, and the duration can be called the row blanking (Hblank) period; after scanning all the rows of sub-pixels in this way, it is necessary to return 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 scanning 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.

[0059] Specifically, the display device 100 may further include a driver chip 104 for driving the display panel 101 to display an image. The driver chip 104 may further generate a plurality of gate signals transmitted to a plurality of gate lines according to the frame revelation signal Vsync and the clock signal, and generate a plurality of data signals transmitted to a plurality of data lines according to the image signal and the clock signal. The driver chip 104 may be a "touch control and display driver integrated chip".

[0060] like Figure 2 As shown, the frame inspiration signal Vsync may include multiple frame inspiration pulses, each frame inspiration pulse represents the opening of a corresponding frame, specifically by generating multiple gate signals to drive multiple rows of sub-pixels to turn on in sequence, so the interval between the starting times of two adjacent frame inspiration pulses represents the display frame period. Here, the refresh rate of the display panel 101 is 60HZ as an example, that is, the display frame period is (1 / 60) seconds.

[0061] The touch panel 102 may include a plurality of touch electrodes, and the driver chip 104 may send at least two touch drive signals to the touch panel 102 in each frame period to perform at least two touch scans on the plurality of touch electrodes (corresponding to two touch frames TP Frame1 and TP Frame2), that is, the touch frame period is greater than or equal to 120 Hz. The touch drive signal may include a plurality of sub-touch drive signals, each of which is used to be transmitted to the corresponding plurality of touch electrodes. Here, the touch drive signal includes four sub-touch drive signals (TP1, TP2, TP3, TP4) as an example, and the plurality of touch electrodes in the touch panel 102 may also be divided into four parts (Term1, Term2, Term3, Term4), each of which is controlled by the same sub-touch drive signal (at least one of TP1, TP2, TP3, TP4).

[0062] Furthermore, in order to avoid interference between gate signals and touch signals, multiple gate signals can be sent within the time interval between two adjacent sub-touch drive signals to turn on the corresponding multiple rows of sub-pixels, and in order to reduce interference between touch drive signals in different cycles, a noise reduction signal nz can be sent between the touch drive signals of two adjacent cycles.

[0063] The present embodiment does not limit the number of touch driving signals included in the first touch scanning period Tt1, but at least one touch driving signal is required to scan the touch panel 102 at least once to generate a first touch signal for determining the current touch operation. Figure 2 In the figure, only one touch driving signal is set in the first touch scanning period Tt1 as an example, that is, the first touch signal packet is generated by the touch panel 102 being controlled by one driving touch signal.

[0064] Specifically, this embodiment ( Figure 2 ) compared with the comparative example ( Figure 3 ), after the touch panel 102 generates a first touch signal according to the touch operation in the first touch scanning period Tt1 (i.e., the end time of the first touch scanning period Tt1), the first touch signal is directly processed by the application processor 103 to generate a first feedback signal (recorded as the third event J3), without the need to process the second touch signal through the driver chip 104 to generate a second feedback signal (recorded as the fourth event J4) after the touch panel 102 generates a second touch signal according to the touch operation in 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) as in the comparative example.

[0065] 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 resources and external interface resources, and mainly executes tasks in serial, while the latter has abundant internal resources and external interfaces, and can process multiple cores, multiple tasks, and multiple threads at the same time, so it has 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.

[0066] In some embodiments, in combination Figure 1 and Figure 2As shown, as discussed above, the touch panel 102 is also used to generate a second touch signal in a second touch scanning period Tt2 after the first touch scanning period Tt1 in response to the touch operation ("generating a second touch signal" is recorded as a second event J2); wherein, the application processor 103 is used to output the first feedback signal when the second touch signal is recognized.

[0067] That is, in Figure 2 In the embodiment shown, the touch panel 102 generates a second touch signal in the second touch scanning period Tt2 after the first touch scanning period Tt1. At the same time, the application processor 103 also processes the first touch signal generated by the touch panel 102, and outputs a first feedback signal (recorded as the fourth event J4) when the second touch signal is recognized (i.e., the end time of the second touch scanning period Tt2).

[0068] In such Figure 3 In the comparative example shown, the driving chip 104 needs to process the second touch signal to generate a second feedback signal after the touch panel 102 generates a second touch signal in the second touch scanning period Tt2 after the first touch scanning period Tt1 according to the touch operation (i.e., the end time of the second touch scanning period Tt2), and then output the second feedback signal (recorded as the fifth event J5).

[0069] Therefore, compared with the driver chip 104 of 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, can also output the corresponding touch signal at least one "second touch scanning period Tt2" in advance.

[0070] In some embodiments, Figure 2 and Figure 3 As shown, the driver chip 104 is used to scan the touch panel 102 once in the first touch scanning period Tt1, so that the touch panel 102 generates the first touch signal. Combined with the above discussion, it can be seen that the first touch scanning period Tt1 corresponding to the first touch signal in this embodiment only includes one touch signal, that is, the touch panel 102 is only scanned once, and the touch situation at this time can be understood as a single-point touch, that is, the touch duration is short, and the first touch signal for determining the touch operation can be generated by scanning the touch panel 102 once.

[0071] As discussed above, the display device 100 also includes: the above-mentioned driving chip 104, which is used to provide the above-mentioned frame synchronization signal Vsync, and 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.

[0072] Combined with the above discussion, it can be seen that on the basis that the driver chip 104 scans the touch panel 102 once in the first touch scanning period Tt1 and the second touch scanning period Tt2 respectively, if Figure 2 and Figure 3 As shown, if 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.

[0073] In some embodiments, different from Figure 2 and Figure 3 As shown, the first touch scanning period Tt1 includes multiple first sub-touch scanning periods, and the driving chip 104 is used to scan the touch panel 102 once in each of the first sub-touch scanning periods so that the touch panel 102 generates a first sub-touch signal, and the first touch signal includes multiple first sub-touch signals.

[0074] In combination with the above discussion, it can be considered that multiple touch drive signals can be set within 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-time touch, that is, the touch lasts for a long time, and it is necessary to scan the touch panel 102 multiple times to generate the corresponding multiple first sub-touch signals before the first touch signal for determining the touch operation can be obtained.

[0075] The driving chip 104 is further configured to provide the 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.

[0076] In combination with the above discussion, it can be seen that on the basis that the driving chip 104 scans the touch panel 102 once in each first sub-touch scanning period (that is, scans the touch panel 102 multiple times in the first touch scanning period Tt1), if 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.

[0077] In summary, within one display frame period, the driver chip 104 can scan the touch panel 102 multiple times, that is, one display frame includes at least two touch frames (TP Frame1 and TP Frame2).

[0078] In some embodiments, Figure 2 and Figure 3 As shown, the time t0 when the touch operation corresponding to the first touch signal first occurs is located in the invalid touch scanning period Tt0 before the first touch scanning period Tt1. Specifically, the driver chip 104 sends a touch signal to the touch panel 102 in the invalid touch scanning period Tt0 where the first touch is located to perform at least touch scanning on multiple touch electrodes, and the touch panel 102 also generates a corresponding invalid touch signal ("generating an invalid touch signal" is recorded as an invalid event J0).

[0079] It can be understood that this embodiment takes into account the low accuracy of the time period before the false touch and the first touch, so the application processor 103 does not process the invalid touch signal generated in the invalid touch scan period Tt0 of the first touch, but processes the first touch signal generated in the first touch scan period Tt1 after the invalid touch scan period Tt0 of the first touch.

[0080] Specifically, Figure 2 and Figure 3 As shown, here, the duration of each touch scanning period (such as but not limited to the above-mentioned invalid touch scanning period Tt0, the first touch scanning period Tt1, and the second touch scanning period Tt2) is 5.4ms, and the time interval between two adjacent touch scanning periods is 3.1ms. Assume, for example Figure 2 and Figure 3 It is indicated that the moment of the first touch is between the first sub touch drive signal and the second sub touch drive signal in the invalid touch scan period Tt0. At this time, the first display frame may include the invalid touch scan period Tt0 and the first touch scan period Tt1.

[0081] In this embodiment, Figure 2 As shown, the first pulse of the touch interrupt signal TP IRQ indicates that the application processor 103 obtains 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.

[0082] In the comparative example, Figure 3As shown, 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, the 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 in the invalid touch scanning period Tt0 and the end time of the driver chip 104 processing the second touch signal, which is about 26.6ms, specifically 5.1+3.1+5.4+3.1+5.4+4.5=26.6ms.

[0083] contrast Figure 2 and Figure 3 It can be seen that the difference between the two is at least 4.5ms, that is, the sum of the time interval between two adjacent touch scan periods and the duration of the second touch scan period Tt2. Further, 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 be added with the duration of the application processor 103 processing the second feedback signal.

[0084] In some embodiments, Figure 4 As shown, the application processor 103 includes: a storage module 1031, storing a plurality of touch models; a processing module 1032, for determining the touch model corresponding to the first touch signal from the plurality of touch models according to the first touch signal, and for processing the first touch signal according to the corresponding touch model to generate the first feedback signal.

[0085] Among them, since the memory of the application processor 103 is relatively large, multiple touch models (including but not limited to single-point touch model, multi-point touch model, gesture model, interference model and cross-screen interaction model) can be stored first, and each model can include corresponding feature values ​​and corresponding processing algorithms. Therefore, users can customize touch gestures to correspond to different corresponding services, thereby realizing personalized services.

[0086] Specifically, the application processor 103 can parse the first touch signal to obtain the corresponding first feature value, 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 a corresponding first feedback signal.

[0087] It can be seen that since the application processor 103 pre-stores multiple touch models, after obtaining the first touch signal, the corresponding model can be directly determined and the processing algorithm therein can be called to process the first touch signal. Figure 3The driver chip 104 in the illustrated embodiment does not store multiple touch models (eg, it is necessary to use a traditional algorithm to indiscriminately process the touch signal in more steps), which speeds up the processing speed and thus reduces the touch response time of the display device 100 .

[0088] In some embodiments, Figure 5 As shown, the application processor 103 includes: an adjustment module 1033, which is used to adjust at least one of the data size and data volume in the first touch signal to generate the first feedback signal. It can be considered that the application processor 103 integrates the function of artificial intelligence. For example, at least one of the data size and data volume in the first touch signal can be adjusted here. The former can be understood as adjusting the size of the numerical value of the data in the first touch signal, and the latter can be understood as adjusting the number of data in the first touch signal to prepare for generating the first feedback signal. The specific adjustment algorithm can be understood as determined by artificial intelligence after training on a large amount of sample data.

[0089] Specifically, it can be considered that the adjustment module 1033 is used to adjust at least one of the data size and data volume in the first touch signal to generate the first transition signal, and the application processor includes: a data processing module 1034, which is used to learn the first transition signal according to the data processing model to generate the first feedback signal. Among them, it can be considered that the above adjustment module 1033 performs pre-processing on the first touch signal to generate the first transition signal, and thereafter the data processing module 1034 is still required to use the artificial intelligence model obtained by previous training to perform deep learning on the first transition signal, such as multiple rounds of learning and feedback to update the data processing model, and use the updated data processing model to process the first transition signal, so as to obtain a first feedback signal with higher accuracy.

[0090] Further, such as Figure 5 As shown, the application processor 103 includes: a monitoring module 1035, which is used to monitor whether the first feedback signal generated by the data processing module 1034 is correct, and adjust the data processing model when the first feedback signal is incorrect. It can be understood that the first feedback signal obtained by the above-mentioned data processing model can be transmitted to the driver chip 104, and then the driver chip 104 controls the display panel 101 to display the screen according to the first feedback signal, that is, the result of the first feedback signal is fed back to the user through the display screen. The user can make a judgment based on the matching situation of the display screen and the corresponding touch situation, and feed back the judgment result to the monitoring module 1035, so as to realize the monitoring module 1035 to monitor the accuracy of the first feedback signal, and adjust the data processing model when the first feedback signal is incorrect, so as to further improve the reliability of the subsequent touch response of the display device 100.

[0091] In some embodiments, Figure 6 As shown, the first touch signal and the first feedback signal are transmitted between the driver chip 104 and the application processor 103 via serial communication. The bit information in the serial communication can be sent one by one through a single line based on the clock signal, and the bit information and the clock signal are transmitted from the sender to the receiver. For example, for the serial transmission of the 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.

[0092] It is understandable that since serial communication only requires a single line to send multiple bits of information one by one, it has the advantages of low cost, ease of use and good compatibility. Among them, serial communication can be SPI communication or I 2 C communication.

[0093] The application processor 103 may be an integrated circuit chip for processing data tasks on mobile devices and other intelligent electronic devices, controlling user interfaces, processing graphics and audio, and managing network communications, and is specifically used to process operating systems, applications, and user interactions with devices, 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 in the motherboard of the display device 100.

[0094] In some embodiments, Figure 6 As shown, the driver chip 104 is located on the array substrate in the display panel 101, and the display device 100 also includes: a circuit board 105, which is electrically connected between the driver chip 104, the display panel 101, the touch panel 102 and the application processor 103, and the driver chip 104 communicates with the application processor 103 via the circuit board 105.

[0095] Specifically, the display driver in the driver chip 104 can be electrically connected to the corresponding circuits in the array substrate by binding to communicate with the gate lines, data lines and other circuits in the display panel 101. Furthermore, the touch driver in the driver chip 104 can be electrically connected to the corresponding touch electrodes in the touch panel through vias between the array substrate and the touch panel 102.

[0096] 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 an image according to the first feedback signal.

[0097] The circuit board 105 in this embodiment may include circuits electrically connected to the driver chip 104, the display panel 101, and the touch panel 102. The circuit board 105 and the application processor 103 are also electrically connected through circuits, that is, the serial port communication between the driver chip 104 and the application processor 103 needs to be realized through the circuits in the circuit board 105 and the circuits connecting the circuit board 105 and the application processor 103.

[0098] Further, such as Figure 6 As shown, the circuit board 105 includes: a printed circuit board 1052, which is electrically connected to the application processor 103 and includes multiple components 1053; a flexible circuit board 1051, which is 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 performs serial communication with the application processor 103 through the printed circuit board 1052 and the flexible circuit board 1051.

[0099] It can be understood that, since the flexible circuit board 1051 connected between the display panel 101 and the printed circuit board 1052 has great flexibility, the printed circuit board 1052 can be fixed to the back side of the display panel 101 by bending the flexible circuit board 1051 .

[0100] Among them, the printed circuit board 1052 may also 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, which is at least used to process the voltage generated by the power manager and then supply power to at least one of the driver chip 104, the display panel 101 and the touch panel 102.

[0101] It should be noted that compared with the prior art, since the application processor 103 needs to receive and process the first touch signal, and combined with the above discussion, it can be seen that the signal generated by the touch panel 102 in response to the touch operation is processed by the application processor 103 instead of the driver chip 104, which effectively saves time.

[0102] Therefore, if Figure 7 As shown, in combination with the serial port debugging tool 106 (which can essentially be a piece of code), the computer 107 reads whether the data sent by the driver chip 104 to the application processor 103 is the first touch signal, or whether the time between reading the touch operation and the driver chip 104 receiving the first touch signal and the application processor 103 processing the first touch signal to generate the first feedback signal is 22.1ms, so as to determine whether it is the above-mentioned display device 100 provided by the present invention.

[0103] Among them, the display device 100 of the present invention can be applied to, including but not limited to, vehicle-mounted touch display and multi-screen display. Combined with the above discussion, it can be seen that since the display device 100 of the present invention stores multiple touch models, noise signals, such as static electricity, can be quickly screened out by, for example, comparing with multiple touch models to identify, and at the same time, the touch model can also include a model corresponding to "foreign matter or excessive stress on the display surface". When such a situation is detected, the user can be prompted through the interface to avoid damage to the display device 100. At the same time, since the present invention saves the touch response time of the display device 100, it will be more convenient for the interaction of information between multiple screens.

[0104] In order to better illustrate the above-mentioned display device, the present invention also provides a driving method of the display device, and the driving method of the display device may include but is not limited to the following embodiments and combinations of the following embodiments.

[0105] In some embodiments, Figure 8 As shown, the driving method of the display device includes but is not limited to the following steps and a combination of the following steps:

[0106] S1 : In response to a touch operation, the touch panel generates a first touch signal in a first touch scanning period.

[0107] S2, the driving chip receives the first touch signal, and transmits the first touch signal to the application processor.

[0108] In combination with the above discussion, it can be seen that the driver chip 104 can send at least two touch drive signals to the touch panel 102 in each frame period to perform at least two touch scans on multiple touch electrodes. The first touch scan period Tt1 may 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.

[0109] S3, the application processor processes the first touch signal to generate a first feedback signal, and transmits the first feedback signal to the driving chip.

[0110] In combination with the above discussion, it can be seen that, 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 resources and external interface resources, and mainly executes tasks in serial, while the latter has abundant internal resources and external interfaces, and multi-core processing, multi-tasking, and multi-threading processing, so it has 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.

[0111] S4, the driving chip controls the display panel to display an image according to the first feedback signal.

[0112] 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 the touch situation can be fed back to meet the screen requirements required by the touch situation.

[0113] Specifically, Fig. 9 As shown, it is a flow chart of the comparative example and the embodiment above, combined with the above discussion and Fig. 9 As shown. In the comparative example, the driver chip 104 processes the second touch signal to generate the second feedback signal only after the step of "second touch scanning" is performed to generate the second touch signal, and the application processor 103 is still required to process the second feedback signal before releasing it; in the embodiment of this aspect, after the step of "first touch scanning" is performed 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 scanning". When the application processor 103 recognizes the second touch signal generated by the step of "second touch scanning", it releases the first feedback signal.

[0114] The structure of the display device and the driving method thereof provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized in that: include: Display panel; The touch panel is used to generate a first touch signal in a first touch scanning period in response to a touch operation; Application processor; as well as a driving chip, configured to receive the first touch signal and transmit the first touch signal to the application processor; The application processor is used for processing the first touch signal to generate a first feedback signal, and transmitting the first feedback signal to the driving chip, and the driving chip is used for controlling the display panel to display an image according to the first feedback signal.

2. The display device according to claim 1, wherein: The touch panel is further configured to generate a second touch signal in a second touch scanning period after the first touch scanning period in response to the touch operation; The application processor is configured to output the first feedback signal when the second touch signal is recognized.

3. The display device according to claim 2, wherein: The driving chip is used to scan the touch panel once in the first touch scanning period, so that the touch panel generates the first touch signal.

4. The display device according to claim 3, characterized in that The driving chip is also used to provide a frame synchronization signal, and the frame synchronization signal 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.

5. The display device according to claim 2, wherein: The first touch scanning period includes multiple first sub-touch scanning periods, and the driving chip is used to scan the touch panel once in each of the first sub-touch scanning periods, so that the touch panel generates a first sub-touch signal, and the first touch signal includes multiple first sub-touch signals.

6. The display device according to claim 5, characterized in that The driving chip is also used to provide a frame synchronization signal, and the frame synchronization signal is a periodic signal; 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.

7. The display device according to claim 1, wherein: The first touch signal and the first feedback signal are transmitted between the driving chip and the application processor via serial port communication.

8. The display device according to claim 7, characterized in that The driving chip is located on an array substrate in the display panel, and the display device further includes: The circuit board is electrically connected between the driving chip, the display panel, the touch panel and the application processor. The driving chip communicates with the application processor via a serial port via the circuit board.

9. The display device according to claim 8, wherein: The circuit board comprises: A printed circuit board, including a plurality of components, electrically connected to the application processor; The flexible circuit board is electrically connected between the driving chip, the display panel, the touch panel and the printed circuit board. The driving chip performs serial communication with the application processor through the printed circuit board, the flexible circuit board and the application processor.

10. The display device according to claim 1, wherein: The driver chip comprises: a touch driver, 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 an image according to the first feedback signal.

11. The display device according to any one of claims 1 to 10, characterized in that: The application processor comprises: A storage module storing multiple touch models; A processing module is used to determine the touch model corresponding to the first touch signal from the multiple touch models according to the first touch signal, and to process the first touch signal according to the corresponding touch model to generate the first feedback signal.

12. The display device according to any one of claims 1 to 10, characterized in that: The application processor comprises: The adjustment module is used to adjust at least one of the data size and the data amount in the first touch signal to generate the first feedback signal.

13. The display device according to claim 12, wherein: The adjustment module is used to adjust at least one of the data size and the data amount in the first touch signal to generate the first transition signal, and the application processor includes: A data processing module is used to process the first transition signal according to a data processing model to generate the first feedback signal.

14. The display device according to claim 13, wherein: The application processor comprises: 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.

15. The display device according to any one of claims 1 to 10, characterized in that: The moment when the touch operation corresponding to the first touch signal first occurs is within an invalid touch scanning period before the first touch scanning period.

16. A method for driving a display device, characterized in that: include: The touch panel generates a first touch signal in a first touch scanning period in response to a touch operation; The driving 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 driving chip; The driving chip controls the display panel to display an image according to the first feedback signal.

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