Display panel, driving method thereof, driving circuit and display device

Abstract

The application provides a display panel, a driving method thereof, a driving circuit and a display device, and relates to the technical field of display. The display panel comprises a plurality of transmission channels and a plurality of pixels. The driving method comprises the following steps: in response to a display control signal, a reference starting time is determined, the reference starting time being an output time of an adjacent last driving signal; and based on the reference starting time and a preset delay parameter, a target transmission channel group of the display panel is controlled to output a driving signal, the output time of the driving signal being the reference starting time plus the preset delay parameter, the driving signal being used for driving the plurality of pixels to display, and the target transmission channel group comprising at least one of the plurality of transmission channels. The application can improve the anti-interference capability of the display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a driving method thereof, a driving circuit and a display device. BACKGROUND

[0002] With the development of display technology, electronic devices with display functions are everywhere, for example, vehicle-mounted panels have become an important part of vehicle-mounted terminals.

[0003] However, the existing display device is commonly affected by electromagnetic interference (EMI) during the process of being controlled to display, and is limited by the limited anti-interference ability of the display device, thereby affecting the overall display effect.

[0004] Therefore, how to improve the anti-interference ability of the display device has become a technical problem that needs to be solved by the technical personnel in the field. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a display panel, a driving method thereof, a driving circuit and a display device, which can solve the problem of how to improve the anti-interference ability of the existing display device.

[0006] To achieve the above purpose, in a first aspect, the present application provides a driving method of a display panel, the display panel comprising a plurality of transmission channels and a plurality of pixels, the method comprising:

[0007] determining a reference start time in response to a display control signal, the reference start time being an output time of an adjacent last driving signal;

[0008] controlling a target transmission channel group of the display panel to output a driving signal based on the reference start time and a preset delay parameter, the output time of the driving signal being the reference start time plus the preset delay parameter, the driving signal being used to drive a plurality of pixels corresponding to the target transmission channel group to display, the target transmission channel group comprising at least one of the plurality of transmission channels.

[0009] In some embodiments, before determining the reference start time in response to the display control signal, the method comprises:

[0010] obtaining identification information of each transmission channel in the plurality of transmission channels;

[0011] grouping the transmission channels according to the first preset rule and the identification information, to obtain a plurality of transmission channel groups, each transmission channel group including at least one row of transmission channels, and the target transmission channel group being at least one of the plurality of transmission channel groups; in a case where any transmission channel group includes a plurality of rows of transmission channels, the identification information of the plurality of rows of transmission channels being continuous;

[0012] The plurality of transmission channels are arranged in a row or a column, and the row of transmission channels is a column of transmission channels or a row of transmission channels.

[0013] In some embodiments, the controlling the target transmission channel group of the display panel to output the driving signal based on the reference start time and the preset delay parameter includes:

[0014] In a case where the target transmission channel group is a first transmission channel group of the plurality of transmission channel groups, 0 is taken as the reference start time.

[0015] In a case where the target transmission channel group is an i-th transmission channel group of the plurality of transmission channel groups, i is greater than or equal to 2, and an output time of a driving signal corresponding to an (i-1)-th transmission channel group is taken as the reference start time.

[0016] The controlling the target transmission channel group of the display panel to output the driving signal based on the reference start time and the preset delay parameter.

[0017] In some embodiments, the driving signal includes a source end driving signal or a row scanning driving signal, and the controlling the target transmission channel group of the display panel to output the driving signal based on the reference start time and the preset delay parameter includes:

[0018] In a case where the driving signal is a source end driving signal of the display panel, the reference start time is a time point.

[0019] In a case where the driving signal is a row scanning driving signal of the display panel, the reference start time is a time period, and the time period includes a continuous output time of a previous driving signal.

[0020] In some embodiments, before the controlling the target transmission channel group of the display panel to output the driving signal based on the reference start time and the preset delay parameter, the method includes:

[0021] determining an order of each transmission channel group according to an order of the identification information of each transmission channel or a second preset rule, and sequentially taking each transmission channel group as the target transmission channel group according to the order of each transmission channel group;

[0022] The second preset rule comprises taking two transmission channel groups of the intermediate interval corresponding number of transmission channel groups as the target transmission channel group.

[0023] The second aspect further provides a driving circuit, which is coupled with the plurality of transmission channels of the display panel and is used to perform the driving method of the display panel according to any one of the first aspect.

[0024] In some embodiments, the driving circuit comprises a source end driving module, which connects the plurality of pixels through the plurality of columns of transmission channels and is used to output a source end driving signal through the target transmission channel group formed by the plurality of columns of transmission channels.

[0025] In some embodiments, the driving circuit further comprises a row scanning driving module, which connects the plurality of pixels through the plurality of rows of transmission channels and is used to output a row scanning driving signal through the row of transmission channels.

[0026] The third aspect further provides a display panel, which comprises a substrate, a plurality of pixels in a display area of the substrate, and the driving circuit according to any one of the second aspect, which is located in a non-display area of the substrate.

[0027] The fourth aspect further provides a display device, which comprises a power supply assembly and the display panel according to the third aspect, wherein the power supply assembly is coupled with the display panel and is used to supply power for the display panel.

[0028] In general, the present application has at least the following beneficial effects:

[0029] The driving method of the display panel provided by the embodiments of the present application can divide the transmission channels into a plurality of transmission channel groups, control at least one group of transmission channel groups as target transmission channels at one driving moment, and control the target transmission channel group to output a driving signal based on a reference starting time and a preset delay parameter, so that the time interval of the transmission of the driving signals by the adjacent two target transmission channel groups is the preset delay parameter, and thus the plurality of pixels of the display panel can be displayed at different times, the radiation energy concentration caused by the simultaneous transmission of the driving signals to all the pixels is avoided, the electromagnetic radiation interference is reduced, and the anti-interference ability of the display panel is improved.

[0030] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0031] In the drawings, like reference numerals refer to same or similar components throughout the several views. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application. It should be understood that the drawings are merely for purposes of illustration and are not to be construed as limiting the scope of the application. Moreover, the drawings are not necessarily drawn to scale.

[0032] Figure 1 A step flow chart of a driving method of a display panel provided by an embodiment of the application is shown;

[0033] Figure 2 A grouping schematic diagram of a transmission channel provided by an embodiment of the application is shown;

[0034] Figure 3 A timing diagram of a row scanning driving signal provided by an embodiment of the application is shown;

[0035] Figure 4 A structural schematic diagram of a driving circuit provided by an embodiment of the application is shown;

[0036] Figure 5 A structural schematic diagram of a display panel provided by an embodiment of the application is shown;

[0037] Figure 6 A structural schematic diagram of a display device provided by an embodiment of the application is shown. DETAILED DESCRIPTION

[0038] The embodiments of the technical solutions of the application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the application, and therefore only serve as examples, and cannot limit the protection scope of the application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "include" and "have" and any variations thereof used in the specification and the claims and the above description of drawings shall not be construed as excluding any additional elements or steps.

[0040] In the description of the embodiments of the application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0041] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiments even though it can not be explicitly described within the other embodiments. It is expressly understood that combinations of aspects of the

[0042] In the description of the embodiments of the present application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0043] In the description of the embodiments of the present application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0044] In the description of the embodiments of the present application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connecting”,“connecting”,“fixing” and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0047] In the process of image display, a display panel (such as a liquid crystal display screen) displays an image by driving pixels in the display panel in sequence. The principle is that each pixel includes a light-emitting element, and the light-emitting element emits light under the driving of a driving signal. In the process of driving the pixels, the existing display panel generally sends driving signals to all the pixels at the same time. However, this method can cause the accumulation of radiation energy in a signal output frequency point, and thus cause greater interference. Since the anti-interference ability of the display device is limited, in the case of greater electromagnetic interference, the display effect of the display panel can be affected.

[0048] Therefore, an embodiment of the present application provides a display panel, a driving method thereof, a driving circuit and a display device. The purpose of reducing the radiation energy of the fixed frequency point is achieved by changing the driving time of the pixels.

[0049] The embodiment of the present application can be applied to the display scene in daily life, and can also be applied to the anti-interference test scene of the display panel. The following embodiments are applied to the electromagnetic compatibility test scene of the vehicle-mounted panel for the convenience of description.

[0050] Figure 1 A step flowchart of the driving method of the display panel provided by the embodiment of the present application is shown. The display panel of the embodiment of the present application includes a plurality of transmission channels and a plurality of pixels. The plurality of transmission channels are used to transmit driving signals to the pixels connected thereto respectively, so that the light-emitting elements of the pixels emit light under the driving of the driving signals.

[0051] As shown in Figure 1 The driving method of the display panel includes the following steps in the embodiment of the present application.

[0052] S101, determining a reference start time in response to a display control signal.

[0053] S102, controlling a target transmission channel group of the display panel to output a driving signal based on the reference start time and a preset delay parameter. The output time of the driving signal is the reference start time plus the preset delay parameter. The driving signal is used to drive a plurality of pixels corresponding to the target transmission channel group to display. The target transmission channel group includes at least one of the plurality of transmission channels.

[0054] The execution subject of the embodiment of the present application can be a driving circuit or an integrated circuit or a driving chip or a display device, etc. which can output a driving signal.

[0055] In the embodiment, the display control signal is, for example, a display instruction issued by a user based on an interactive device. Taking the driving circuit as an example, the driving circuit executes the above steps S101 and S102 in response to the display control signal when receiving the display control signal.

[0056] The reference start time in the embodiment refers to the output time of the adjacent previous drive signal, that is, the reference start time is different for each drive signal. In this way, the start time of each output drive signal is different, the radiation energy concentration caused by simultaneously sending drive signals to all pixels is avoided, the electromagnetic radiation interference is reduced, and the anti-interference ability of the display panel is improved.

[0057] The preset delay parameter in the embodiment can be customized according to the image display accuracy and other display requirements of the display panel. In an example, the preset delay parameter can be generated according to an oscillator to generate a stable periodic oscillation signal. The oscillation period of the oscillation signal is a delay. For example, the oscillation period of the oscillator is represented by OSC, and the preset delay parameter is OSC.

[0058] In the embodiment, the transmission channel group is formed according to at least one row of transmission channels, that is, the plurality of transmission channels of the display panel are divided into a plurality of groups. The target transmission channel group represents the transmission channel group used to transmit the drive signal at the current time. The target transmission channel group includes at least one of the plurality of transmission channels, that is, the transmission channel group used to transmit the drive signal at the current time can include one transmission channel or a plurality of transmission channels.

[0059] The reference start time is the output time of the adjacent previous drive signal, and the output time of the drive signal is the reference start time plus the preset delay parameter, that is, the time interval between the output time of the current drive signal and the output time of the adjacent previous drive signal is the preset delay parameter. In this way, the time interval between the transmission of the drive signal by the adjacent two target transmission channel groups is the preset delay parameter, and the plurality of pixels of the display panel can be displayed at different times, the radiation energy concentration caused by simultaneously sending drive signals to all pixels is avoided, the electromagnetic radiation interference is reduced, and the anti-interference ability of the display panel is improved.

[0060] In the embodiment of the application, before determining the reference start time in response to the display control signal, the driving method of the display panel comprises: obtaining identification information of each transmission channel in the plurality of transmission channels; grouping each transmission channel according to a first preset rule and the identification information to obtain a plurality of transmission channel groups.

[0061] The identification information of the transmission channel can represent the arrangement order of the transmission channel. The identification information of the transmission channel can be a letter, a number, or a combination of letters and numbers.

[0062] The first preset rule is, for example, to arrange a preset number of transmission channels as a transmission channel group according to the arrangement order of each transmission channel.

[0063] Figure 2 This illustration shows a grouping diagram of a transmission channel provided in an embodiment of this application, such as... Figure 2 As shown, there are 1920 transmission channels. SOUT1 to SOUT1920 correspond to the output ports of each transmission channel and can also be used as identification information for the transmission channels. Taking a preset number of 120 as an example, the 1920 transmission channels can be divided into 16 groups, such as SOUT1 to SOUT120 as one group, SOUT121 to SOUT240 as one group, ... SOUT841 to SOUT960 as one group, SOUT961 to SOUT1080 as one group, ... SOUT1081 to SOUT1200 as one group, ... SOUT1801 to SOUT1920 as one group. In this way, multiple transmission channels can be divided into multiple transmission channel groups.

[0064] In this embodiment, each transmission channel group includes at least one row of transmission channels, and the target transmission channel group is at least one of multiple transmission channel groups. When any transmission channel group includes multiple rows of transmission channels, the identification information of the multiple rows of transmission channels is continuous.

[0065] In other words, the target transmission channel group is a set of multiple transmission channel groups. For example, at one moment, the target transmission channel group is the transmission channel group corresponding to SOUT1 to SOUT120. At another moment, the target transmission channel group can also be multiple sets of target transmission channel groups. For example, the target transmission channel group includes the transmission channel groups corresponding to SOUT1 to SOUT120 and the transmission channel groups corresponding to SOUT1801 to SOUT1920. Another example is that the target transmission channel group includes the transmission channel groups corresponding to SOUT841 to SOUT960 and the transmission channel groups corresponding to SOUT961 to SOUT1080.

[0066] In cases where the transmission channel group comprises multiple rows of transmission channels, the identification information corresponding to the transmission channels within the group is continuous. For example, the target transmission channel group may include multiple rows of transmission channels from SOUT1 to SOUT120, where the identification information from SOUT1 to SOUT120 is continuous. It is understood that continuous transmission channels correspond to continuous pixels, thus allowing pixels belonging to the same area to be displayed simultaneously, avoiding image display clutter.

[0067] In this embodiment, multiple transmission channels are configured to be arranged in a row or a column. When multiple transmission channels are configured to be arranged in a row, the driving signal transmitted through the multiple transmission channels is the source end driving signal, which can control the source end of the light-emitting element in the pixel and charge the light-emitting element.

[0068] When the plurality of transmission channels are arranged in a column, the driving signal transmitted through the plurality of transmission channels in a plurality of columns is a row scanning driving signal, and the gate end of each row of light emitting elements in the pixel can be controlled to control the light emitting time length of the light emitting element.

[0069] As described above, the plurality of transmission channels are grouped into a plurality of transmission channel groups according to the first preset rule and the identification information, and the plurality of transmission channels can be divided into a plurality of transmission channel groups, and then at least one transmission channel group can be controlled as a target transmission channel at a driving moment, so as to realize time-sharing transmission of the driving signal and avoid radiation energy concentration caused by simultaneous transmission of the driving signal to all pixels.

[0070] The plurality of transmission channels are arranged in a row or a column, and the pixels of the control panel can be dispersedly controlled from two different driving angles, thereby improving the adaptability and expansibility of the embodiment.

[0071] In the embodiment, the target transmission channel group of the display panel outputs the driving signal based on the reference start time and the preset delay parameter, including: in the case that the target transmission channel group is the first transmission channel group in the plurality of transmission channel groups, 0 is taken as the reference start time; in the case that the target transmission channel group is the i th transmission channel group in the plurality of transmission channel groups, i is greater than or equal to 2, and the output time of the driving signal corresponding to the (i-1) th transmission channel group is taken as the reference start time; and the target transmission channel group of the display panel outputs the driving signal based on the reference start time and the preset delay parameter.

[0072] It can be understood that, in the case that the target transmission channel group is the first transmission channel group in the plurality of transmission channel groups, the target transmission channel group has no corresponding adjacent previous driving signal, that is, the output time of the adjacent previous driving signal is 0, and therefore 0 is taken as the reference start time.

[0073] In the case that the target transmission channel group is the i th transmission channel group in the plurality of transmission channel groups, the output time of the driving signal corresponding to the (i-1) th transmission channel group is taken as the reference start time, where i is greater than or equal to 2 and less than or equal to the total number of transmission channel groups. For example, in the case that the target transmission channel group is the fourth transmission channel group in the plurality of transmission channel groups, the output time of the driving signal corresponding to the third transmission channel group is taken as the reference start time.

[0074] The embodiment can accurately determine the reference start time of the target transmission channel group according to the order of the target transmission channel group, and then the driving time of each target transmission channel group can be realized, and the target transmission channel group outputs the driving signal according to the reference start time and the preset delay parameter.

[0075] In the embodiment, the driving signal includes a source end driving signal or a row scanning driving signal, and the target transmission channel group of the display panel outputs the driving signal based on the reference start time and the preset delay parameter, including: in the case that the driving signal is the source end driving signal of the display panel, the reference start time is a time point; in the case that the driving signal is the row scanning driving signal of the display panel, the reference start time is a time period, and the time period includes a continuous output moment of the previous driving signal.

[0076] It should be noted that the source end driving signal can provide a current to control a source voltage of a pixel, so as to quickly control conduction and cutoff of a light emitting element of the pixel, that is, the driving time is short in one driving process, and in a complete driving period, the target transmission channel group can sequentially output the driving signal.

[0077] For the row scanning driving signal, the original driving timing can be sent by a timing controller, and the driving timing is used to control source end and gate end output timing of the pixel. Figure 3 A timing diagram of the row scanning driving signal is shown, Figure 3 In the timing diagram, DE is a high level effective signal, Source Output is a source end output signal, STV is a signal of start of a frame, CPV is a signal of start of a row, and OEV is a gate driving output enable signal.

[0078] In the case that the driving signal is the row scanning driving signal of the display panel, the reference start time is a time period, for example, the target transmission channel group is a second row transmission channel group, and the start time of the second row transmission channel group is a continuous output moment of a first row transmission channel group, for example, a time period corresponding to ODT1 in the timing diagram. Figure 3 For example, the target transmission channel group includes 12 row transmission channel groups, the output time of the first row transmission channel group is ODT1, the output time period ODT2 corresponding to the second row transmission channel group is delayed by 1 preset delay parameter (for example, 1 OSC) based on ODT1, the output time period ODT3 corresponding to the third row transmission channel group is delayed by 2 OSC based on ODT1, and the output time period ODT12 corresponding to the twelfth row transmission channel group is delayed by 11 OSC based on ODT1.

[0079] The above embodiment discloses a determination manner of the reference start time of the source end driving signal and the row scanning driving signal, and the determination manner of the target transmission channel group output driving signal timing can be realized for different signals.

[0080] In the embodiment, before the display panel is controlled to output the driving signal of the target transmission channel group based on the reference start time and the preset delay parameter, the method comprises: determining the order of each transmission channel group according to the order of the identification information of each transmission channel or a second preset rule, and sequentially taking each transmission channel group as the target transmission channel group according to the order of each transmission channel group. The second preset rule comprises taking two transmission channel groups of the corresponding number of transmission channel groups in the middle interval as the target transmission channel group.

[0081] The order of each transmission channel group is determined according to the order of the identification information of each transmission channel. For example, the transmission channels comprise 1920 transmission channels SOUT1-SOUT1920, the 1920 transmission channels are divided into 16 groups according to the order of each transmission channel, the order of each transmission channel group is determined according to the order of the identification information of each transmission channel, that is, the order of 1-1920 is sequentially determined to obtain the first group of transmission channel groups SOUT1-SOUT120, the second group of transmission channel groups SOUT121-SOUT240, and the 16th group of transmission channel groups SOUT1801-SOUT1920. In this way, 16 target transmission channel groups can be sequentially obtained.

[0082] The order of each transmission channel group is determined according to the second preset rule. The second preset rule comprises taking two transmission channel groups of the corresponding number of transmission channel groups in the middle interval as the target transmission channel group. Continuing the above example, the embodiment comprises 16 transmission channel groups, and the interval corresponding number can be customized according to actual display requirements. For example, each interval corresponding number forms an arithmetic sequence, the first interval number is 14 transmission channel groups, the second interval number is 12 transmission channel groups, the third interval number is 10 transmission channel groups, and the last interval number is 0 transmission channel groups. In this way, the two transmission channel groups SOUT1-SOUT120 and SOUT1801-SOUT1920 are the first group of target transmission channel groups, the two transmission channel groups SOUT121-SOUT240 and SOUT1681-SOUT1800 are the second group of target transmission channel groups, and the eighth group of target transmission channel groups is SOUT841-SOUT1080.

[0083] In the embodiment, two transmission channel groups of the corresponding number of transmission channel groups in the interval are taken as a target transmission channel group, which can speed up the transmission efficiency of the driving signal, and the corresponding number of transmission channels is arranged between the two transmission channels, which can speed up the signal transmission efficiency while reducing electromagnetic radiation.

[0084] The application of the embodiment in a specific example is described below.

[0085] In one example, the driving signal is a source-end driving signal, and the multiple transmission channels are column transmission channels. The driving signal is issued by the driving circuit, which is connected to the source end of the pixel through the column transmission channels. This embodiment divides the column transmission channels into multiple groups. For example, the transmission channels include 1920 channels from SOUT1 to SOUT1920. Following the order of each transmission channel, the 1920 transmission channels are divided into 16 groups. Two transmission channel groups with a corresponding number of intermediate intervals are selected as the target transmission channel groups, resulting in the following... Figure 2 The eight outputs SOD1-SOD8 shown, upon receiving a display control signal from the user, respond to the signal by using the two transmission channel groups corresponding to SOD1 as target transmission channel groups and outputting drive signals through these target transmission channel groups. At this point, the reference start time is 0. After a delay time OSC1 corresponding to a preset delay parameter is reached, the two transmission channel groups corresponding to SOD2 are used as target transmission channel groups to output drive signals, and so on. After 7 OSC1 times, the last transmission channel group SOUT1801-SOUT1920 corresponding to SOD8 outputs drive signals. Compared to related technologies that simultaneously output drive signals through 1920 transmission channels, this embodiment achieves time-division output, thereby dispersing energy and reducing electromagnetic radiation from the display panel.

[0086] In another example, the driving signal is a row scan driving signal, and multiple transmission channels are row transmission channels. The driving signal is issued by a driving circuit, which is connected to the gate terminals of the pixels through the row transmission channels. This embodiment includes 12 row transmission channels. Following the row order of the transmission channels, each row's transmission channel is sequentially designated as a target transmission channel group. Upon receiving a display control signal from the user, the driving circuit responds to the display control signal, designating the first row transmission channel as the target transmission channel group and outputting a row scan driving signal through the target transmission channel group. The driving timing of the row scan driving signal is as follows: Figure 3As shown, the reference start time of the first row transmission channel is 0, the duration of the output of the driving signal of the first row transmission channel is ODT1, after ODT1 is output, the second row transmission channel is taken as a target transmission channel group, the reference start time of the second row transmission channel is ODT1, and the time of the output of the driving signal of the second row transmission channel is the reference start time plus a preset delay parameter OSC2, that is, the time of the output of the driving signal of the second row transmission channel is delayed by OSC2 compared with the time of the output of the driving signal of the first row transmission channel, and the same is true for the subsequent two target transmission channel groups, the time of the output of the driving signal of each adjacent two target transmission channel groups is separated by OSC2, and after the 12th row transmission channel outputs the driving signal as a target transmission channel group, the time of the output of the driving signal of the 12th row transmission channel is delayed by 11OSC2 compared with the time of the output of the driving signal of the first row transmission channel group. The embodiment can realize time-sharing output, thereby dispersing energy and reducing electromagnetic radiation of the display panel.

[0087] OSC1 and OSC2 in the embodiment can be the same time parameter or different time parameters.

[0088] In an example, the delay of each transmission channel group can be realized by setting a 4-bit register value, for example, when the register value is 0000, Figure 2 SOD1 outputs in the table, when the register value is 0001, that is, after the delay of OSC1, Figure 2 SOD2 outputs in the table, and the same is true for the subsequent register values, when the register value is 0111, Figure 2 SOD8 outputs in the table, and the register values 1000-1111 can also be reserved to expand and adapt to the delay control of more transmission channels.

[0089] The relationship between the register value and the delay is shown in the following table:

[0090] Register value Delay Output 0000 0 OSC1 SOD1 0001 1 OSC1 SOD2 0010 2 OSC1 SOD3 0011 3 OSC1 SOD4 0100 4 OSC1 SOD5 0101 5 OSC1 SOD6 0110 6 OSC1 SOD7 0111 7 OSC1 SOD8 1000～1111 Reserved

[0091] It should be noted that the delay data column in the above table refers to the total delay compared with the output of the first target transmission channel group.

[0092] The above is a driving method of a display panel provided by the embodiment, the transmission channels are divided into multiple transmission channel groups, at least one transmission channel group is controlled as a target transmission channel at a driving moment, and the target transmission channel group is controlled to output a driving signal based on a reference start time and a preset delay parameter, so that the time interval of the transmission of the driving signal by adjacent two target transmission channel groups is the preset delay parameter, and then the multiple pixels of the display panel can be displayed at different times, the concentrated radiation energy caused by the simultaneous transmission of the driving signal to all pixels is avoided, thereby reducing electromagnetic radiation interference and improving the anti-interference ability of the display panel.

[0093] Figure 4 Fig. 1 shows a structural schematic diagram of a driving circuit according to an embodiment of the present application. As shown in Fig. 1, the embodiment provides a driving circuit, which is coupled with a plurality of transmission channels of a display panel and is used to perform the driving method of the display panel according to any one of the above embodiments. Figure 4

[0094] Specifically, the driving circuit is used to determine a reference start time in response to a display control signal, the reference start time being an output time of a previous driving signal adjacent to the reference start time; and control a target transmission channel group of the display panel to output a driving signal based on the reference start time and a preset delay parameter, the output time of the driving signal being the reference start time plus the preset delay parameter, the driving signal being used to drive a plurality of pixels to display, and the target transmission channel group including at least one of the plurality of transmission channels.

[0095] Referring to Figure 4 , the driving circuit includes a source end driving module 41, which connects a plurality of pixels through a plurality of columns of transmission channels and is used to output a source end driving signal through a target transmission channel group formed by the plurality of columns of transmission channels.

[0096] In one example, the source end driving module 41 is used to perform the driving method of the display panel according to the above embodiments in a case where the driving signal is the source end driving signal.

[0097] The driving circuit further includes a row scanning driving module 42, which connects a plurality of pixels through a plurality of rows of transmission channels and is used to output a row scanning driving signal through a row transmission channel.

[0098] In one example, the row scanning driving module 42 is used to perform the driving method of the display panel according to the above embodiments in a case where the driving signal is the row scanning driving signal.

[0099] Exemplarily, the source end driving module 41 and the row scanning driving module 42 can be two independent IC control chips or application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGA), other programmable logic devices, discrete hardware components, etc.

[0100] The driving circuit provided by the embodiment of the present application has the same beneficial effects as the driving method of the display panel provided by the embodiment of the present application.

[0101] Figure 5 Fig. 2 shows a structural schematic diagram of a display panel according to an embodiment of the present application. As shown in Fig. 2, the embodiment provides a display panel, which includes a plurality of pixels and a driving circuit. Figure 5 ​As shown, the display panel includes a substrate 10, a plurality of pixels P1 located in a display area A1 of the substrate 10, and the driving circuit 20 of any one of the above embodiments, the driving circuit 20 being located in a non-display area B1 of the substrate.

[0102] In one example, the display panel can be a vehicle-mounted panel, a mobile terminal panel, or the like.

[0103] The display panel provided by the embodiments of the present application and the driving method of the display panel provided by the embodiments of the present application are based on the same inventive concept, and have the same beneficial effects as the method adopted, run or implemented.

[0104] Figure 6 A structural schematic diagram of a display device provided by the embodiments of the present application is shown in FIG. 1. Figure 6 As shown, the display device includes a power supply component J1, and the display panel 100 of the above embodiments, wherein the power supply component J1 is coupled with the display panel 100 and used for supplying power for the display panel 100.

[0105] In one example, the display device can be a vehicle-mounted display terminal, a mobile terminal, or the like.

[0106] The display device provided by the embodiments of the present application and the driving method of the display panel provided by the embodiments of the present application are based on the same inventive concept, and have the same beneficial effects as the method adopted, run or implemented.

[0107] It should be noted that:

[0108] In the above text, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0109] Those skilled in the art can clearly understand the above-mentioned embodiment method can be realized by means of software and the necessary general hardware platform, of course, also can be through hardware, but many cases the former is the better embodiment. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art contribution can be embodied in the form of software product, the computer software product is stored in a storage medium (such as ROM / RAM, disk, optical disk), including a number of instructions to make a terminal (may be a mobile phone, computer, server, air conditioner, or network equipment, etc.) executes the method described in various embodiments of the present application.

[0110] The embodiments of the present application are described above in conjunction with the drawings, which are merely specific embodiments of the present application, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms without departing from the scope of the present application and the protection scope of the claims under the inspiration of the present application, which all belong to the protection of the present application.

Claims

1. A driving method for a display panel, characterized in that, The display panel includes multiple transmission channels and multiple pixels, and the method includes: In response to a display control signal, a reference start time is determined, wherein the reference start time is the output time of the adjacent previous drive signal; Based on the reference start time and the preset delay parameter, the target transmission channel group of the display panel is controlled to output a driving signal. The output time of the driving signal is the reference start time plus the preset delay parameter. The driving signal is used to drive the display of multiple pixels corresponding to the target transmission channel group. The target transmission channel group includes at least one of the multiple transmission channels. The driving signal includes a source driving signal or a row scanning driving signal. When the driving signal is a row scanning driving signal of the display panel, the reference start time is a time period, which includes the continuous output time of the previous driving signal.

2. The driving method for the display panel according to claim 1, characterized in that, Before determining the reference start time in response to a display control signal, the method includes: Obtain the identification information of each of the multiple transmission channels; The transmission channels are grouped according to the first preset rule and identification information to obtain multiple transmission channel groups. Each transmission channel group includes at least one row of transmission channels. The target transmission channel group is at least one of the multiple transmission channel groups. Wherein, if any transmission channel group includes multiple rows of transmission channels, the identification information of the multiple rows of transmission channels is continuous. The plurality of transmission channels are configured to be arranged in a row or a column, wherein a row of transmission channels is a column of transmission channels or a row of transmission channels.

3. The driving method for a display panel according to claim 1, characterized in that, The step of controlling the output drive signal of the target transmission channel group of the display panel based on the reference start time and preset delay parameters includes: When the target transmission channel group is the first transmission channel group among the plurality of transmission channel groups, 0 is taken as the reference start time; When the target transmission channel group is the i-th transmission channel group among the plurality of transmission channel groups, i is greater than or equal to 2, and the output time of the driving signal corresponding to the (i-1)-th transmission channel group is taken as the reference start time. The target transmission channel group of the display panel is controlled to output drive signals based on the reference start time and preset delay parameters.

4. The driving method for the display panel according to claim 1 or 3, characterized in that, Controlling the output drive signal of the target transmission channel group of the display panel based on the reference start time and preset delay parameters includes: When the driving signal is the source driving signal of the display panel, the reference start time is a point in time.

5. The driving method for a display panel according to claim 1, characterized in that, Before controlling the target transmission channel group of the display panel to output drive signals based on the reference start time and preset delay parameters, the method includes: According to the order of the identification information of each transmission channel or the second preset rule, determine the order of each transmission channel group, and in turn, use each transmission channel group as the target transmission channel group according to the order of each transmission channel group. The second preset rule includes taking two transmission channel groups with a corresponding number of transmission channel groups in between as the target transmission channel group.

6. A driving circuit, characterized in that, The driving circuit is coupled to multiple transmission channels of the display panel and is used to perform the driving method of the display panel according to any one of claims 1-5.

7. The driving circuit according to claim 6, characterized in that, The driving circuit includes a source-end driving module, which connects multiple pixels through multiple transmission channels and is used to output a source-end driving signal through a target transmission channel group formed by the multiple transmission channels.

8. The driving circuit according to claim 6 or 7, characterized in that, The driving circuit also includes a row scan driving module, which connects multiple pixels through a multi-row transmission channel and is used to output row scan driving signals through the row transmission channel.

9. A display panel, characterized in that, The display panel includes: a substrate, a plurality of pixels located in the display area of ​​the substrate, and a driving circuit according to any one of claims 6-8, wherein the driving circuit is located in the non-display area of ​​the substrate.

10. A display device, characterized in that, The display device includes a power supply component and a display panel as described in claim 9, wherein the power supply component is coupled to the display panel and is used to supply power to the display panel.

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