A method for setting delay time and backlight panel

Abstract

The embodiment of the present invention provides a method for setting a delay time and a backlight panel, the method is applied to a backlight panel, the backlight panel includes a transmission branch, a backlight controller and a backlight driver, each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller, a dimming data packet is sent to the first backlight driver in each transmission branch by the backlight controller, and a dimming data packet is received by the backlight driver, and the delay time is calculated according to a preset delay parameter, a target address instruction and a preset clock cycle, wherein the dimming data packet carries the preset delay parameter and the address instruction corresponding to each backlight driver. That is, the present application sends a dimming data packet by the backlight controller, and the backlight driver receives the dimming data packet and calculates the delay time, thereby reducing configuration instructions while sending the delay time to the backlight controller, and avoiding the problem of EMC.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a delay time setting method and a backlight panel. Background Art

[0002] The backlight panel generally includes a transmission branch, a backlight controller and a plurality of backlight drivers. The backlight controller processes the received data and converts it into a drive control signal recognizable by the backlight driver, so that the backlight driver drives the LED connected to it to emit light according to the drive control signal. However, since the backlight controller takes different time to complete the data processing, it is impossible to display the LEDs connected to the backlight driver uniformly along the y-axis, which affects the display effect.

[0003] In the prior art, the backlight controller sends a preset delay time to each backlight driver to achieve uniform display of LEDs, which will lead to a significant increase in the number of configuration instructions during the transmission process, which is not conducive to data transmission. If the purpose of complete data transmission is to be achieved, the data transmission rate needs to be increased, but the increase in rate will cause electromagnetic compatibility (EMC) problems. Therefore, how to reduce the configuration instructions while sending the delay time to the backlight driver to avoid EMC problems has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides a delay time setting method and a backlight panel, which are used to solve the problem in the prior art of how to reduce configuration instructions and avoid EMC while sending the delay time to a backlight driver.

[0005] In a first aspect, an embodiment of the present invention provides a method for setting a delay time, which is applied to a backlight panel, wherein the backlight panel includes a transmission branch, a backlight controller, and a backlight driver arranged in an array, each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller, and the method includes:

[0006] Sending a dimming data packet to the first backlight driver in each transmission branch through the backlight controller, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined through the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch;

[0007] For each backlight driver, a dimming data packet is received by the backlight driver, and a delay time is calculated according to a preset delay parameter, a target address instruction and a preset clock cycle, and the delay time is used as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

[0008] In a possible implementation, the address instruction is determined in the following manner:

[0009] For each backlight driver, according to the scanning mode of the backlight panel, the backlight controller determines the position coordinates of the backlight driver on the backlight panel;

[0010] Determining the series connection information of the backlight driver through the backlight controller according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch;

[0011] The address instruction is determined by the backlight controller according to the position coordinates and the serial connection information.

[0012] In a possible implementation, determining the position coordinates of the backlight driver on the backlight panel by the backlight controller according to the scanning mode of the backlight panel includes:

[0013] According to the scanning mode, the backlight controller uses the position of the first backlight driver to be scanned as the starting point;

[0014] Taking the starting point as the origin, the row extension direction as the direction of the x-axis, and the opposite direction of the column extension direction as the direction of the y-axis, a coordinate system is established through the backlight controller;

[0015] The position coordinates of the backlight driver are determined by the backlight controller according to the position of the backlight driver in the coordinate system.

[0016] In a possible implementation, determining, by the backlight controller, the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch includes:

[0017] If the series connection mode is column-based series connection and the series connection type is the first target type, the backlight controller determines that the series connection information is first column series connection information;

[0018] If the series connection mode is column-based series connection, and the series connection type is other than the first target type, the backlight controller determines that the series connection information is second column series connection information, wherein the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch;

[0019] If the series connection mode is row-by-row series connection and the series connection type is the second target type, determining, by the backlight controller, that the series connection information is first row series connection information;

[0020] If the series connection mode is row series connection, and the series connection type is other types except the second target type, the backlight controller determines that the series connection information is second row series connection information, wherein the second row series connection information includes second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch;

[0021] Among them, the first target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same column, and the second target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same row.

[0022] In a possible implementation, determining the address instruction by the backlight controller according to the position coordinates and the series connection information includes:

[0023] If the series connection information is the first column series connection information, the backlight controller uses the row coordinates in the position coordinates as the address instruction, or uses the first column series connection information and the row coordinates as the address instruction;

[0024] If the series connection information is second column series connection information, the backlight controller uses the second column sub-series connection information corresponding to the column where the backlight driver is located and the row coordinates in the position coordinates as the address instruction;

[0025] If the series connection information is the first row series connection information, the backlight controller uses the column coordinates in the position coordinates as the address instruction, or uses the first row series connection information and the column coordinates as the address instruction;

[0026] If the series connection information is second-row series connection information, the backlight controller uses the second-row sub-series connection information corresponding to the row where the backlight driver is located and the column coordinates in the position coordinates as the address instruction.

[0027] In a possible implementation, the backlight driver calculates the delay time according to a preset delay parameter, a target address instruction, and a preset clock cycle, including:

[0028] determining an address delay parameter by the backlight driver according to the target address instruction;

[0029] The delay time is calculated by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle.

[0030] In a possible implementation, determining the address delay parameter by the backlight driver according to the target address instruction includes:

[0031] The backlight driver uses the coordinate information in the target address instruction as the address delay parameter, wherein the coordinate information includes row coordinates or column coordinates.

[0032] In a possible implementation, the calculating the delay time by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle includes:

[0033] The backlight driver uses the product of the preset delay parameter, the address delay parameter and the clock cycle as the delay time.

[0034] In a possible implementation, the calculating the delay time by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle includes:

[0035] Calculating the sum of the address delay parameter and a preset value by the backlight driver, and taking the product of the preset delay parameter, the sum and the clock cycle as the delay time, wherein the preset value;

[0036] The preset value is a fixed value, or changes with the address delay parameter.

[0037] In a second aspect, an embodiment of the present invention further provides a backlight panel, comprising a transmission branch, a backlight controller and a backlight driver arranged in an array, wherein each transmission branch comprises a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller;

[0038] The backlight controller is used to send a dimming data packet to the first backlight driver in each transmission branch, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined by the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch;

[0039] For each backlight driver, the backlight driver is used to receive a dimming data packet, and calculate a delay time according to a preset delay parameter, a target address instruction and a preset clock cycle, and use the delay time as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

[0040] In a possible implementation, the backlight controller determines the address instruction in the following manner:

[0041] For each backlight driver, determining the position coordinates of the backlight driver on the backlight panel according to the scanning mode of the backlight panel;

[0042] Determining the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch;

[0043] The address instruction is determined according to the position coordinates and the serial connection information.

[0044] In a possible implementation, for each backlight driver, determining the position coordinates of the backlight driver on the backlight panel according to the scanning mode of the backlight panel includes:

[0045] According to the scanning method, the position of the first backlight driver to be scanned is taken as the starting point;

[0046] The starting point is taken as the origin, the row extension direction is taken as the direction of the x-axis, and the opposite direction of the column extension direction is taken as the direction of the y-axis to establish a coordinate system;

[0047] The position coordinates of the backlight driver are determined according to the position of the backlight driver in the coordinate system.

[0048] In a possible implementation, determining the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch includes:

[0049] If the series connection mode is column-based series connection and the series connection type is the first target type, determining that the series connection information is first column series connection information;

[0050] If the series connection mode is column-based series connection, and the series connection type is other types except the first target type, determining that the series connection information is second column series connection information, wherein the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch;

[0051] If the series connection mode is row series connection and the series connection type is the second target type, determining that the series connection information is first row series connection information;

[0052] If the series connection mode is row series connection and the series connection type is other types except the second target type, determining that the series connection information is second row series connection information, wherein the second row series connection information includes second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch;

[0053] Among them, the first target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same column, and the second target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same row.

[0054] The beneficial effects of the present invention are as follows:

[0055] An embodiment of the present invention provides a method for setting a delay time and a backlight panel, the method is applied to a backlight panel, the backlight panel includes a transmission branch, a backlight controller and an array-arranged backlight driver, each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller; a dimming data packet is sent to the first backlight driver in each transmission branch by the backlight controller, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined by the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch; for each backlight driver, the dimming data packet is received by the backlight driver, and the delay time is calculated according to the preset delay parameter, the target address instruction and the preset clock cycle, and the delay time is used as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is the address instruction carried in the dimming data packet and corresponding to the backlight driver. That is, the present application sends preset delay parameters and address instructions to the backlight driver through the backlight controller, and receives the preset delay parameters, target address instructions and preset clock cycle through the backlight driver to calculate the delay time, thereby reducing configuration instructions while sending the delay time to the backlight driver to avoid EMC problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0057] FIG. 1( a ) is a schematic diagram of a backlight control device in the prior art provided in an embodiment of the present application;

[0058] FIG1( b ) is a schematic diagram of a data architecture in the prior art provided in an embodiment of the present application;

[0059] Figure 2 A flowchart of a method for setting a delay time provided in an embodiment of the present application;

[0060] Figure 3 A schematic diagram of a position coordinate provided in an embodiment of the present application;

[0061] FIG4( a) is a schematic diagram of serial connection information provided in an embodiment of the present application;

[0062] FIG4( b ) is a schematic diagram of another type of serial information provided in an embodiment of the present application;

[0063] FIG5( a) is a schematic diagram of an address instruction provided in an embodiment of the present application;

[0064] FIG5( b) is a schematic diagram of another address instruction provided in an embodiment of the present application;

[0065] FIG5( c ) is a schematic diagram of another address instruction provided in an embodiment of the present application;

[0066] FIG6( a ) is another schematic diagram of serial connection information provided in an embodiment of the present application;

[0067] FIG6( b ) is another schematic diagram of serial connection information provided in an embodiment of the present application;

[0068] FIG. 7( a) is a schematic diagram of another address instruction provided in an embodiment of the present application;

[0069] FIG7( b) is a schematic diagram of another address instruction provided in an embodiment of the present application;

[0070] FIG7( c ) is a schematic diagram of another address instruction provided in an embodiment of the present application;

[0071] FIG8( a) is a schematic diagram of determining an address delay parameter provided in an embodiment of the present application;

[0072] FIG8( b ) is a schematic diagram of determining a delay time provided in an embodiment of the present application;

[0073] FIG8( c ) is a schematic diagram of another method for determining address delay parameters provided in an embodiment of the present application;

[0074] FIG8( d ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0075] FIG9( a) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0076] FIG9( b ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0077] FIG10( a ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0078] FIG10( b ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0079] FIG11( a) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0080] FIG11( b ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0081] FIG12( a) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0082] FIG12( b ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0083] FIG13( a) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0084] FIG13( b ) is a schematic diagram of another method for determining a delay time provided in an embodiment of the present application;

[0085] Fig.14 A schematic diagram of a data architecture provided in an embodiment of the present application;

[0086] Fig.15 A schematic diagram of the structure of a backlight panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0087] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0088] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0089] As shown in FIG. 1( a ), the backlight panel generally includes a backlight controller 101 and a plurality of backlight drivers 102. The backlight controller 101 processes the received data and converts the data into a drive control signal recognizable by the backlight driver 102, so that the backlight driver 102 drives the LED connected thereto to emit light according to the drive control signal. However, since the time taken by the backlight controller 101 to complete the data processing is different, it is impossible to evenly display the LEDs connected to the backlight driver 102 in the direction along the y-axis, which affects the display effect.

[0090] In the prior art, as shown in FIG. 1(b), it is a schematic diagram of a data architecture in the prior art provided by an embodiment of the present application, wherein Reset represents reset, CMD represents a command to be executed, Address#1~#n represents the position of the backlight driver, Delay#1~#n represents the preset delay time, and Data represents the drive control signal sent by the backlight controller 101 to the backlight driver 102. The prior art realizes uniform display of LEDs by sending preset delay times Delay#1, Delay#2, Delay#3…Delay#n to each backlight driver by the backlight controller, but it will cause a significant increase in the instructions configured during the transmission process, which is not conducive to data transmission. At the same time, in order to achieve the purpose of complete data transmission, it is necessary to increase the data transmission rate, but the increase in the rate will cause electromagnetic compatibility (EMC) problems. Therefore, how to reduce the configuration instructions and avoid EMC problems while sending the delay time to the backlight driver has become a technical problem that needs to be solved urgently.

[0091] Based on the above problems, an embodiment of the present application provides a method for setting a delay time applied to a backlight panel, wherein the backlight panel includes a transmission branch, a backlight controller, and a backlight driver arranged in an array, each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller, such as Figure 2 FIG. 1 is a flowchart of a method for setting a delay time provided in an embodiment of the present application, and the steps of the method are as follows:

[0092] S201, sending a dimming data packet to the first backlight driver in each transmission branch through a backlight controller, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined through the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch;

[0093] S202. For each backlight driver, a dimming data packet is received by the backlight driver, and a delay time is calculated according to a preset delay parameter, a target address instruction and a preset clock cycle, and the delay time is used as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

[0094] An embodiment of the present invention provides a method for setting a delay time, which is applied to a backlight panel, wherein the backlight panel includes a transmission branch, a backlight controller and backlight drivers arranged in an array, wherein each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller; a dimming data packet is sent to the first backlight driver in each transmission branch through the backlight controller, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined through the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch; for each backlight driver, the dimming data packet is received through the backlight driver, and the delay time is calculated according to the preset delay parameter, the target address instruction and the preset clock cycle, and the delay time is used as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is the address instruction carried in the dimming data packet and corresponding to the backlight driver. That is, the present application sends preset delay parameters and address instructions to the backlight driver through the backlight controller, and receives the preset delay parameters, target address instructions and preset clock cycle through the backlight driver to calculate the delay time, thereby reducing configuration instructions while sending the delay time to the backlight driver to avoid EMC problems.

[0095] The backlight controller can control z transmission branches, where z is an integer and z≥1, and the first transmission branch is represented as Z1, the second transmission branch is represented as Z2, and the zth transmission branch is represented as Zz.

[0096] It should be noted that, firstly, for each backlight driver, according to the scanning mode of the backlight panel, the backlight controller determines the position coordinates of the backlight driver on the backlight panel;

[0097] In a specific embodiment, the position coordinates of the backlight driver are determined by scanning the position of the backlight driver on the backlight panel. The backlight controllers on the backlight panel are arranged in m rows and n columns. During the scanning process, the position of the first backlight driver scanned is used as the starting point, and its position coordinates are defined as Y(0,0). The position coordinates of other backlight drivers are determined according to the four quadrants of the x-axis and y-axis in the coordinate system. It should be noted that the position coordinates are the coordinate values ​​Y(i,j) of each backlight driver on the backlight panel, i corresponding to the y-axis represents the column coordinate, and j corresponding to the x-axis represents the row coordinate. In addition, the difference between the j values ​​of the coordinate values ​​of each two adjacent backlight drivers in the same row is a preset value, which can be 1; similarly, the difference between the i values ​​of the coordinate values ​​of each two adjacent backlight drivers in the same column can also be a preset value of 1.

[0098] Specifically, the position coordinates of the backlight driver on the backlight panel are determined in the following manner:

[0099] Step 1: According to the scanning mode, the backlight controller uses the position of the first backlight driver to be scanned as the starting point;

[0100] Step 2, using the backlight controller to take the starting point as the origin, the row extension direction as the direction of the x-axis, and the opposite direction of the column extension direction as the direction of the y-axis to establish a coordinate system;

[0101] Step 3: According to the position of the backlight driver in the coordinate system, the backlight controller determines the position coordinates of the backlight driver.

[0102] In a possible implementation manner, when the scanning mode is scanning along the row extension direction and the column extension direction, as shown in FIG. Figure 3 As shown, the first backlight driver located along the row extension direction of the backlight panel and the first backlight driver along the column extension direction are taken as the starting point, and the backlight driver is taken as the starting backlight driver Y(0,0), the row extension direction is taken as the direction of the x-axis, and the opposite direction of the column extension direction is taken as the direction of the y-axis to establish a coordinate system, and the position coordinates of other backlight drivers are determined according to the four quadrants of the coordinate system.

[0103] In another possible embodiment, when the scanning method is scanning along the column extension direction, along the opposite direction of the column extension, and along the row extension direction, the first backlight driver located on the backlight panel that scans along the column extension direction and the opposite direction of the column extension is used as the starting backlight driver, and the backlight driver is used as the starting point Y(0,0), the row extension direction is used as the direction of the x-axis, and the opposite direction of the column extension direction is used as the direction of the y-axis to establish a coordinate system, and the position coordinates of other backlight drivers are determined according to the four quadrants of the coordinate system.

[0104] In another possible implementation, when the scanning method is scanning along the row extension direction, along the opposite direction of the row extension, and along the column extension direction, the first backlight driver located on the backlight panel that scans along the row extension direction and along the opposite direction of the row extension is taken as the starting point Y(0,0), the row extension direction is taken as the direction of the x-axis, and the opposite direction of the column extension direction is taken as the direction of the y-axis to establish a coordinate system, and the position coordinates of other backlight drivers are determined according to the four quadrants of the coordinate system.

[0105] In the following, the scanning mode of scanning along the row extension direction and the column extension direction is taken as an example for explanation, that is, the first backlight driver that scans along the column extension direction and the opposite direction of the column extension is used as the starting backlight driver Y(0,0) for specific explanation of the embodiment. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application, and in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0106] After determining the position coordinates of the backlight driver, the address instruction of each backlight driver is determined according to the preset series connection mode and series connection type of the backlight driver on each transmission branch. First, according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch, the series connection information of the backlight driver is determined by the backlight controller, and secondly, according to the position coordinates and the series connection information, the address instruction is determined by the backlight controller.

[0107] It should be noted that the series connection method includes column-based series connection and row-based series connection, and the series connection type includes a first target type and other types other than the first target type, wherein the first target type may be a 1-type, and other types other than the first target type may be an n-type, an N-type, an S-type, etc., and the series connection method and the series connection type are pre-set. In addition, the first target type indicates that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same column, and the second target type indicates that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same row.

[0108] In a possible implementation, first, based on a preset series connection mode and series connection type, series connection information corresponding to each backlight driver on each transmission branch is determined. When the series connection mode is determined to be column-based series connection, if the series connection type is a first target type, the series connection information is determined by the backlight driver to be first column series connection information, that is, each transmission branch includes a column of backlight drivers.

[0109] Specifically, when the series connection method is column-by-column series connection and the series connection type is 1-type, the series connection information of the backlight driver on each transmission branch is determined as the first column of series connection information, and the first column of series connection information is represented by V1, as shown in Figure 4(a). For example, the backlight controller has z branches with a series connection type of 1, and each transmission branch has m backlight drivers. The series connection information on each branch is recorded as V1, the series connection information of each backlight driver on the first transmission branch is Z1(V1), the series connection information of each backlight driver on the second transmission branch is Z1(V1)...the series connection information of each backlight driver on the zth transmission branch is Zz(V1).

[0110] When the series connection method is determined to be column-by-column series connection, if the series connection type is other than the first target type, the series connection information is determined to be the second column series connection information through the backlight driver, and the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch, wherein each transmission branch includes M columns of backlight drivers, M is an integer and M≥2.

[0111] Specifically, when the series connection mode is column-by-column series connection and the series connection type is n-type, N-type, S-type, etc., the backlight driver on each transmission branch is determined as the second column series connection information, and the second column series connection information includes the second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch, which are respectively represented as V1, V2...VM, where M represents the number of series connection columns included in a transmission branch. As shown in FIG4(b), for example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. The series connection mode of Z1 is column-by-column series connection, and the series connection type is n-type. The series connection mode of Z5 is column-by-column series connection, and the series connection type is N-type. Since the series connection type of the transmission branch Z1 is n-type, the transmission branch of Z1 includes two columns of series-connected backlight drivers. The second column sub-series connection information corresponding to each backlight driver on the first column is recorded as Z1(V1), and the second column sub-series connection information corresponding to each backlight driver on the second column is recorded as Z1(V2). Since the series type of the transmission branch Z5 is N type, the transmission branch Z5 includes two columns of backlight drivers connected in series. The second column sub-series information corresponding to each backlight driver on the first column is recorded as Z5 (V1), and the second column sub-series information corresponding to each backlight driver on the second column is recorded as Z5 (V2).

[0112] Afterwards, based on the series connection information and position coordinates corresponding to each backlight driver, the address instruction of each backlight driver is determined. If the series connection information is the first column series connection information, the row coordinates in the position coordinates are used as the address instruction through the backlight controller, or the first column series connection information and the row coordinates are used as the address instruction; if the series connection information is the second column series connection information, the second column sub-series connection information corresponding to the column where the backlight driver is located and the row coordinates in the position coordinates are used as the address instruction through the backlight controller.

[0113] Specifically, when the series connection information is the first column series connection information, that is, the series connection mode of the backlight driver is column series connection and the series connection type is 1-shaped, the absolute value of the row coordinate in the position coordinate corresponding to each backlight driver is used as the address instruction. For example, the backlight controller has z branches of the series connection type 1-shaped, and each transmission branch has m backlight drivers. Since the address instruction can be the absolute value of the row coordinate in the position coordinate of each backlight driver, the absolute value of the row coordinate of the backlight driver on the first transmission branch Z1 can be recorded as 0, 1, 2...m-1 in sequence along the y-axis. Similarly, the absolute value of the row coordinate of the backlight driver on the second transmission branch Z2 can be recorded as 0, 1, 2...m-1 in sequence along the y-axis. The absolute values ​​of the row coordinates of the backlight driver on the z-th transmission branch Zz are recorded as 0, 1, 2…m-1 in the direction along the y-axis, thereby the address instructions of each backlight driver can be obtained. As shown in Figure 5(a), the address instructions of the backlight driver on the first transmission branch Z1 are Z1(0), Z1(1), Z1(2)…Z1(m-1) in the direction along the y-axis, and the address instructions of the backlight driver on the second transmission branch Z2 are Z2(0), Z2(1), Z2(2)…Z2(m-1) in the direction along the y-axis. The address instructions of the backlight driver on the z-th transmission branch Z1 are Zz(0), Zz(1), Zz(2)…Zz(m-1) in the direction along the y-axis. In addition, the address instruction may also include a first column of series information and an address instruction, as shown in Figure 5(b), the address instruction of the backlight driver on the first transmission branch Z1 is Z1(V1, 0), Z1(V1, 1), Z1(V1, 2), ... Z1(V1, m-1) in the direction along the y-axis, the address instruction of the backlight driver on the second transmission branch Z2 is Z2(V1, 0), Z2(V1, 1), Z2(V1, 2), ... Z2(V1, m-1), ... the address instruction of the backlight driver on the zth transmission branch Z1 is Zz(V1, 0), Zz(V1, 1), Zz(V1, 2) ... Zz(V1, m-1) in the direction along the y-axis.

[0114] When the series connection information is the second type column series connection information, that is, the series connection method of the backlight driver is column series connection and the series connection type is n-type, N-type, S-type, etc., the second column sub-series connection information corresponding to the column where each backlight driver is located and the absolute value of the row coordinates are used as the address instruction. For example, the backlight controller has z transmission branches, and taking two of the transmission branches Z1 and Z5 as examples, the address instruction is the second column sub-series connection information and the absolute value of the row coordinates corresponding to each backlight driver column. Since the series connection type of the transmission branch Z1 is n-type, including two columns of backlight drivers connected in series, each column has m backlight drivers, the absolute values ​​of the row coordinates of the backlight drivers on the first column of the transmission branch Z1 can be recorded as 0, 1, 2...m-1 in sequence along the y-axis, and the absolute values ​​of the row coordinates of the backlight drivers on the second column of the transmission branch Z1 can be recorded as 0, 1, 2...m-1 in sequence along the y-axis. Similarly, since the series connection type of the transmission branch Z5 is N-type, including two columns of backlight drivers connected in series, each column having m backlight drivers, the absolute values ​​of the row coordinates of the backlight drivers on the first column of the transmission branch Z5 can be recorded as 0, 1, 2…m-1 in sequence along the y-axis, and the absolute values ​​of the row coordinates of the backlight drivers on the second column of the transmission branch Z5 can be recorded as 0, 1, 2…m-1 in sequence along the y-axis. Thus, the address instructions of each backlight driver can be obtained, and the address instructions include the second type column series connection information and the address instructions. As shown in FIG5(c), the address instructions of the backlight drivers on the first column of the transmission branch Z1 are Z1(V1, 0), Z1(V1, 1), Z1(V1, 2)…Z1(V1, m-1) in sequence along the y-axis, and the address instructions of the backlight drivers on the second column of the transmission branch Z1 are Z1(V2, 0), Z1(V2, 1)…Z1(V2, 2) in sequence along the y-axis. 2, 1), Z1(V2, 2)…Z1(V2, m-1), the address instructions of the backlight driver on the first column of the transmission branch Z5 are Z5(V1, 0), Z5(V1, 1), Z5(V1, 2)…Z5(V1, m-1) in the direction along the y-axis, and the address instructions of the backlight driver on the second column of the transmission branch Z5 are Z5(V2, 0), Z5(V2, 1), Z5(V2, 2)…Z5(V2, m-1) in the direction along the y-axis.

[0115] It should be noted that, when the series information is the first column series information, for each transmission branch, each backlight driver connected in series on the transmission branch has a unique row coordinate, that is, has a unique address instruction, so the address instruction may include only the row coordinate, or may include the first column series information and the row coordinate; when the series information is the second type column series information, for each transmission branch, the backlight driver connected in series on the transmission branch does not have a unique row coordinate, and the backlight drivers located on the same transmission branch have the same row coordinates in different columns in the same row, so the address instruction includes the second column sub-series information and row coordinates corresponding to the column where the backlight driver is located, wherein the second type column series information is used to distinguish the address instructions of the backlight drivers located in different columns in the same row, so that the address instruction of each backlight driver is unique.

[0116] In another possible implementation, first, based on a preset series connection mode and series connection type, series connection information corresponding to each backlight driver on each transmission branch is determined, and when the series connection mode is determined to be row-by-row series connection, if the series connection type is the second target type, the series connection information is determined by the backlight controller to be first row series connection information, and each transmission branch includes a row of backlight drivers;

[0117] Specifically, when the series connection method is row-by-row series connection and the series connection type is 1-type, the series connection information of the backlight driver on each transmission branch is determined as the first row of series connection information, and the first row of series connection information is represented by H1, as shown in Figure 6(a). For example, the backlight controller has z branches with a series connection type of 1, and each transmission branch has n backlight drivers. The series connection information on each transmission branch is recorded as H1, the series connection information of each backlight driver on the first transmission branch is Z1(H1), the series connection information of each backlight driver on the second transmission branch is Z2(H1)...the series connection information of each backlight driver on the zth transmission branch is Zz(H1).

[0118] When the series connection method is determined to be column series connection, if the series connection type is other than the second target type, the series connection information is determined to be the second row series connection information through the backlight driver, and the second row series connection information includes the second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch, wherein each transmission branch includes L rows of backlight drivers, L is an integer and L≥2.

[0119] Specifically, when the series connection mode is row-by-row series connection and the series connection type is n-type, N-type, S-type, etc., the backlight driver on each transmission branch is determined as the second row series connection information, and the second row series connection information includes the second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch, and the second row sub-information is respectively represented as H1, H2...HL, where L represents the number of series connection rows included in a transmission branch. As shown in FIG6(b), for example, the backlight controller has z transmission branches, and two transmission branches Z1 and Z5 are taken as examples. The series connection mode of Z1 is row-by-row series connection, and the series connection type is n-type. The series connection mode of Z5 is column-by-column series connection, and the series connection type is N-type. Since the series connection type of transmission branch Z1 is n-type, the transmission branch of Z1 includes two rows of series-connected backlight drivers, and the series connection information of each backlight driver on the first row is recorded as Z1(H1), and the series connection information of each backlight driver on the second row is recorded as Z1(H2). Since the series type of transmission branch Z5 is N type, the transmission branch Z5 includes two rows of backlight drivers connected in series. The series information of each backlight driver on the first row is recorded as Z5(H1), and the series information of each backlight driver on the second column is recorded as Z5(H2).

[0120] Afterwards, based on the series connection information and position coordinates corresponding to each backlight driver, the address instruction of each backlight driver is determined. If the series connection information is the first row series connection information, the column coordinates in the position coordinates are used as the address instruction through the backlight controller, or the first row series connection information and the column coordinates are used as the address instruction; if the series connection information is the second row series connection information, the second row sub-series connection information corresponding to the row where the backlight driver is located and the column coordinates in the position coordinates are used as the address instruction through the backlight controller.

[0121] Specifically, when the series connection information is the first row series connection information, that is, the backlight driver series connection method is row series connection and the series connection type is 1 type, the absolute value of the column coordinate in the position coordinate corresponding to each backlight driver is used as the address instruction. For example, the backlight controller has z branches with a series connection type of 1 type, and each transmission branch has n backlight drivers. Since the address instruction is the absolute value of the column coordinate in the position coordinate of each backlight driver, the absolute value of the column coordinate of the backlight driver on the first transmission branch Z1 can be recorded in the direction along the x-axis as 0, 1, 2...n-1. Similarly, the absolute value of the column coordinate of the backlight driver on the second transmission branch Z2 can be recorded in the direction along the x-axis as 0, 1, 2...n-1, and the absolute value of the column coordinate of the backlight driver on the zth transmission branch Zz can be recorded in the direction along the x-axis as 0, 1, 2...n-1. From this, the address instructions of each backlight driver can be derived. As shown in Figure 7(a), the address instructions of the backlight driver on the first transmission branch Z1 are recorded in sequence along the x-axis as Z1(0), Z1(1), Z1(2)...Z1(n-1); the address instructions of the backlight driver on the second transmission branch Z1 are recorded in sequence along the x-axis as Z2(0), Z2(1), Z2(2)...Z2(n-1); the address instructions of the backlight driver on the zth transmission branch Zz are recorded in sequence along the x-axis as Zz(0), Zz(1), Zz(2)...Zz(n-1). In addition, the address instruction may also include the first row series information and column coordinates, as shown in Figure 7(b). The address instruction of the backlight driver on the first transmission branch Z1 is recorded in sequence along the direction of the x-axis as Z1(H1, 0), Z1(H1, 1), Z1(H1, 2)…Z1(H1, n-1), and the address instruction of the backlight driver on the second transmission branch Z1 is recorded in sequence along the direction of the x-axis as Z2(H1, 0), Z2(H1, 1), Z2(H1, 2)…Z2(H1, n-1),… The address instruction of the backlight driver on the zth transmission branch Zz is recorded in sequence along the direction of the x-axis as Zz(H1, 0), Zz(H1, 1), Zz(H1, 2)…Zz(H1, n-1).

[0122] When the series connection information is the second type of row series connection information, that is, the series connection method of the backlight driver is row series connection and the series connection type is n-type, N-type, S-type, etc., each backlight driver uses the second row sub-series connection information corresponding to the row where the backlight driver is located and the absolute value of the column coordinates in the position coordinates as the address instruction. For example, the backlight controller has z transmission branches, and taking two of the transmission branches Z1 and Z5 as examples, the address instruction is the second row sub-series connection information corresponding to each backlight driver and the absolute value of the column coordinates. Since the series connection type of the transmission branch Z1 is n-type, including two rows of backlight drivers connected in series, each row has n backlight drivers, then the absolute values ​​of the column coordinates of the backlight drivers on the first row of the transmission branch Z1 can be recorded as 0, 1, 2...n-1 in sequence along the x-axis, and the absolute values ​​of the column coordinates of the backlight drivers on the second row of the transmission branch Z1 can be recorded as 0, 1, 2...n-1 in sequence along the x-axis. Similarly, since the series connection type of the transmission branch Z5 is N-type, including two rows of backlight drivers connected in series, each row having n backlight drivers, the absolute values ​​of the column coordinates of the backlight drivers on the first row of the transmission branch Z5 can be recorded as 0, 1, 2…n-1 in sequence along the x-axis, and the absolute values ​​of the column coordinates of the backlight drivers on the second row of the transmission branch Z5 can be recorded as 0, 1, 2…n-1 in sequence along the x-axis. Thus, the address instruction of each backlight driver can be obtained, and the address instruction includes the second type row series connection information and the address instruction. As shown in FIG7(c), the address instructions of the backlight drivers on the first row of the transmission branch Z1 are Z1(H1, 0), Z1(H1, 1), Z1(H1, 2)…Z1(H1, n-1) in sequence along the x-axis, and the address instructions of the backlight drivers on the second row of the transmission branch Z1 are Z1(H2, 0), Z1(H2, 1)…Z1(H2, 2) in sequence along the x-axis. 2, 1), Z1(H2, 2)…Z1(H2, n-1), the address instructions of the backlight driver on the first row of transmission branch Z5 are Z5(H1, 0), Z5(H1, 1), Z5(H1, 2)…Z5(H1, n-1) in the direction along the x-axis, and the address instructions of the backlight driver on the second row of transmission branch Z5 are Z5(H2, 0), Z5(H2, 1), Z5(H2, 2)…Z5(H2, n-1) in the direction along the x-axis.

[0123] It should be noted that, when the series information is the first row series information, for each transmission branch, each backlight driver connected in series on the transmission branch has a unique column coordinate, that is, has a unique address instruction, so the address instruction may include only the column coordinate, or may include the first row series information and the column coordinate; when the series information is the second type row series information, for each transmission branch, the backlight driver connected in series on the transmission branch does not have a unique column coordinate, and the backlight drivers located on the same transmission branch have the same column coordinates in different rows in the same column, so the address instruction includes the second row sub-series information and column coordinates corresponding to the row where the backlight driver is located, wherein the second type row series information is used to distinguish the address instructions of the backlight drivers located in different rows in the same column, so that the address instruction of each backlight driver is unique.

[0124] In a specific embodiment, according to the preset delay parameter, the target address instruction and the preset clock cycle, the delay time is calculated by the backlight driver, and the steps are as follows:

[0125] Step 1: According to the target address instruction, the address delay parameter is determined by the backlight driver;

[0126] Step 2: Calculate the delay time through the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle.

[0127] The coordinate information in the target address instruction is used as the address delay parameter by the backlight driver, wherein the coordinate information includes row coordinates or column coordinates.

[0128] In addition, the calculation formula of the delay time of the backlight driver is as follows:

[0129] Delay time = D1 × D2 × D3

[0130] Wherein, D1 is a preset delay parameter, D1>0; D3 is a clock cycle; D2 is an address delay parameter, D2≥0.

[0131] When the serial connection mode is serial connection by column, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver.

[0132] Specifically, in a possible implementation, when the series connection mode is column-by-column series connection and the series connection type is 1-shaped, that is, the series connection information of the backlight driver is the first column series connection information, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver. For example, the backlight controller has z branches of the series connection type 1-shaped, and each transmission branch has m backlight drivers. If it is known that the address instruction of the backlight driver on the first transmission branch Z1 is from the direction along the y-axis according to The address instructions of the backlight driver on the second transmission branch Z2 are Z2(0), Z2(1), Z2(2)…Z2(m-1) in the direction along the y-axis, and the address instructions of the backlight driver on the z-th transmission branch Z1 are Zz(0), Zz(1), Zz(2)…Zz(m-1) in the direction along the y-axis, or the address instructions of the backlight driver on the first transmission branch Z1 are known. From the direction along the y-axis, they are Z1(V1, 0), Z1(V1, 1), Z1(V1, 2)…Z1(V1, m-1). The address instructions of the backlight driver on the second transmission branch Z2 are Z2(V1, 0), Z2(V1, 1), Z2(V1, 2)…Z2(V1, m-1) from the direction along the y-axis. The address instructions of the backlight driver on the z-th transmission branch Z1 are Zz(V1, 0), Zz(V1, 1) from the direction along the y-axis. , Zz(V1, 2)…Zz(V1, m-1), as shown in Figure 8(a), the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…m-1 in the direction along the y-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…m-1 in the direction along the y-axis, … the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…m-1 in the direction along the y-axis.

[0133] Based on the calculation formula of the delay time of the backlight driver, the delay time of each backlight driver is calculated as shown in Figure 8(b). The delay time of the backlight driver on the first transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 along the y-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 along the y-axis. The delay time of the backlight driver on the zth transmission branch Zz is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 along the y-axis.

[0134] In another possible implementation, when the series connection method is column-by-column series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type column series connection information, the row coordinates corresponding to the coordinate information in the target address instruction are used as the address delay parameter D2 of the target backlight driver. For example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. Since the series connection type of the transmission branch Z1 is n-type, it includes two columns of backlight drivers in series, and each column has m backlight drivers. It is known that the address instruction of the backlight driver on the first column of the transmission branch Z1 is from along the y-axis The directions of the transmission branch Z1 are Z1(V1, 0), Z1(V1, 1), Z1(V1, 2)…Z1(V1, m-1) in sequence, and the address instructions of the backlight driver on the second column of the transmission branch Z1 are Z1(V2, 0), Z1(V2, 1), Z1(V2, 2)…Z1(V2, m-1) in sequence along the y-axis. Then, the address delay parameter D2 of the backlight driver on the first column of the transmission branch Z1 is 0, 1, 2…m-1 in sequence along the y-axis, and the address delay parameter D2 of the backlight driver on the second column of the transmission branch Z1 is 0, 1, 2…m-1 in sequence along the y-axis. Similarly, since the series type of the transmission branch Z5 is N-type, including two columns of backlight drivers connected in series, each column has m backlight drivers. It is known that the address instructions of the backlight drivers on the first column of the transmission branch Z5 are Z5(V1, 0), Z5(V1, 1), Z5(V1, 2)...Z5(V1, m-1) in the direction along the y-axis, and the address instructions of the backlight drivers on the second column of the transmission branch Z5 are Z5(V2, 0), Z5(V2, 1), Z5(V2, 2)...Z5(V2, m-1) in the direction along the y-axis, as shown in Figure 8(c). Then, the address delay parameter D2 of the backlight drivers on the first column of the transmission branch Z5 is 0, 1, 2...m-1 in the direction along the y-axis, and the address delay parameter D2 of the backlight drivers on the second column of the transmission branch Z5 is 0, 1, 2...m-1 in the direction along the y-axis.

[0135] Based on the calculation formula of the delay time of the backlight driver, the delay time of each backlight driver is calculated. As shown in FIG8( d ), the delay time of the backlight driver on the first column of the transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 in the direction along the y-axis, and the delay time of the backlight driver on the second column of the transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 in the direction along the y-axis. D1×2×D3…D1×(m-1)×D3. Similarly, the delay time of the backlight driver on the first column of the transmission branch Z5 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 along the y-axis, and the delay time of the backlight driver on the second column of the transmission branch Z5 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(m-1)×D3 along the y-axis.

[0136] When the serial connection mode is serial connection by row, the backlight driver uses the column coordinates corresponding to the coordinate information in the target address instruction as the address delay parameter D2 of the backlight driver.

[0137] Specifically, in a possible implementation, when the series connection method is row-by-row series connection and the series connection type is 1-type, that is, when the series connection information of the backlight driver is the first row series connection information, the column coordinate corresponding to the coordinate information in the target address instruction of each backlight driver is used as the address delay parameter D2 of the backlight driver. For example, the backlight controller has z branches of 1-type series connection, and each transmission branch has n backlight drivers. It is known that the address instruction of the backlight driver on the first transmission branch Z1 is recorded as Z1(0), Z1(1), Z1(2)...Z1(n-1) in the direction along the x-axis, and the address instruction of the backlight driver on the second transmission branch Z1 is recorded as Z2(0), Z2(1), Z2(2)...Z2(n-1) in the direction along the x-axis, and the address instruction of the backlight driver on the zth transmission branch Zz is recorded as Zz(0), Zz(1), Zz(2)...Zz(n-1) in the direction along the x-axis. Or, it is known that the address instructions of the backlight driver on the first transmission branch Z1 are sequentially recorded as Z1(H1,0), Z1(H1,1), Z1(H1,2)…Z1(H1,n-1) along the direction of the x-axis, and the address instructions of the backlight driver on the second transmission branch Z1 are sequentially recorded as Z2(H1,0), Z2(H1,1), Z2(H1,2)…Z2(H1,n-1) along the direction of the x-axis, and the address instructions of the backlight driver on the zth transmission branch Zz are sequentially recorded along the direction of the x-axis. Zz(H1, 0), Zz(H1, 1), Zz(H1, 2)…Zz(H1, n-1), then the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…n-1 along the direction of the x-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…n-1 along the direction of the x-axis, … the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…n-1 along the direction of the x-axis.

[0138] Based on the calculation formula of the delay time of the backlight driver, the delay time of each backlight driver is calculated as shown in Figure 9(a). The delay time of the backlight driver on the first transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 along the direction of the x-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 along the direction of the x-axis. The delay time of the backlight driver on the zth transmission branch Zz is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 along the direction of the x-axis.

[0139] In another possible implementation, when the series connection mode is row-by-row series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type row series connection information, the column coordinates corresponding to the coordinate information in the target address instruction of each backlight driver are used as the address delay parameter D2 of the backlight driver. For example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. Since the series connection type of the transmission branch Z1 is n-type, including two rows of backlight drivers in series, each row has n backlight drivers. It is known that the address instruction of the backlight driver on the first row of the transmission branch Z1 is Suppose that the direction along the x-axis is Z1(H1, 0), Z1(H1, 1), Z1(H1, 2)…Z1(H1, n-1), and the address instructions of the backlight driver on the second row of the transmission branch Z1 are Z1(H2, 0), Z1(H2, 1), Z1(H2, 2)…Z1(H2, n-1) in sequence. Then the address delay parameter D2 of the backlight driver on the first row of the transmission branch Z1 is 0, 1, 2…n-1 in sequence along the x-axis, and the address delay parameter D2 of the backlight driver on the second row of the transmission branch Z1 is 0, 1, 2…n-1 in sequence along the x-axis. Similarly, since the series type of the transmission branch Z5 is N-type, including two rows of backlight drivers connected in series, each row has n backlight drivers. It is known that the address instructions of the backlight drivers on the first row of the transmission branch Z5 are Z5(H1, 0), Z5(H1, 1), Z5(H1, 2)...Z5(H1, n-1) in the direction along the x-axis, and the address instructions of the backlight drivers on the second row of the transmission branch Z5 are Z5(H2, 0), Z5(H2, 1), Z5(H2, 2)...Z5(H2, n-1) in the direction along the x-axis. Then, the address delay parameter D2 of the backlight drivers on the first row of the transmission branch Z5 is 0, 1, 2...n-1 in the direction along the x-axis, and the address delay parameter D2 of the backlight drivers on the second row of the transmission branch Z5 is 0, 1, 2...n-1 in the direction along the x-axis.

[0140] Based on the calculation formula of the delay time of the backlight driver, the delay time of each backlight driver is calculated. As shown in FIG9( b), the delay time of the backlight drivers on the first row of the transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 in the direction along the x-axis, and the delay time of the backlight drivers on the second row of the transmission branch Z1 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 in the direction along the x-axis. D1×2×D3…D1×(n-1)×D3. Similarly, the delay time of the backlight driver on the first row of transmission branch Z5 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 along the y-axis, and the delay time of the backlight driver on the second row of transmission branch Z5 is D1×0×D3, D1×1×D3, D1×2×D3…D1×(n-1)×D3 along the y-axis.

[0141] In a specific embodiment, when the calculation of the delay time of the backlight driver also includes a preset value d2, the backlight driver calculates the sum of the address delay parameter D2 and the preset value d2, and uses the product of the preset delay parameter D1, the sum (D2+d2), and the clock period D3 as the delay time. The calculation formula of the delay time of the backlight driver is as follows:

[0142] Delay time = D1 × (D2 + d2) × D3

[0143] The preset value d2 may be a fixed value or a value that changes with the address delay parameter.

[0144] In a possible implementation, when the series connection mode is column-by-column series connection and the series connection type is 1-type, that is, when the series connection information of the backlight driver is the first column series connection information, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver. For example, if it is known that the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…m-1 in sequence along the y-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…m-1 in sequence along the y-axis, and the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…m-1 in sequence along the y-axis, and the preset value d2 is a fixed value 1, then based on the calculation formula of the delay time of the backlight driver, it is calculated to be The delay time to each backlight driver is shown in Figure 10(a). The delay time of the backlight driver on the first transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the y-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the y-axis. The delay time of the backlight driver on the zth transmission branch Zz is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the y-axis.

[0145] In a possible implementation, when the series connection mode is column-by-column series connection and the series connection type is 1-type, that is, when the series connection information of the backlight driver is the first column series connection information, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver. For example, if it is known that the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…m-1 in sequence along the y-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…m-1 in sequence along the y-axis, and the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…m-1 in sequence along the y-axis, and the preset value d2 is an arithmetic difference value that follows the change of the address delay parameter, which is 0, 1, 2…m-1 in sequence along the y-axis. Then based on the delay parameter D2 of the backlight driver The calculation formula of the delay time is used to calculate the delay time of each backlight driver as shown in Figure 10(b). The delay time of the backlight driver on the first transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3 in the direction along the y-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is The delay time of the backlight driver on the zth transmission branch Zz along the direction of the y-axis is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3, … The delay time of the backlight driver on the zth transmission branch Zz along the direction of the y-axis is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3.

[0146] In a possible transmission mode, when the connection mode is column-by-column series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type column series connection information, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver. For example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. If it is known that the address delay parameter D2 of the backlight driver on the first column of the transmission branch Z1 is 0, 1, 2...m-1 in sequence along the y-axis, the address delay parameter D2 of the backlight driver on the second column of the transmission branch Z1 is 0, 1, 2...m-1 in sequence along the y-axis, the address delay parameter D2 of the backlight driver on the first column of the transmission branch Z5 is 0, 1, 2...m-1 in sequence along the y-axis, and the address delay parameter D2 of the backlight driver on the second column of the transmission branch Z5 is 0, 1, 2...m-1 in sequence along the y-axis. And the preset d2 is a fixed value of 1, then based on the calculation formula of the delay time of the backlight driver, the delay time of each backlight driver is calculated as shown in Figure 11(a). The delay time of the backlight drivers on the first row of the transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the x-axis, and the delay time of the backlight drivers on the second row of the transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3 in the direction along the x-axis. 3, D1×(2+1)×D3…D1×(m-1+1)×D3. Similarly, the delay time of the backlight driver on the first row of transmission branch Z5 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the y-axis, and the delay time of the backlight driver on the second row of transmission branch Z5 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(m-1+1)×D3 in the direction along the y-axis.

[0147] In a possible transmission mode, when the connection mode is column-by-column series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type column series connection information, the row coordinate corresponding to the coordinate information in the target address instruction is used as the address delay parameter D2 of the target backlight driver. For example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. If it is known that the address delay parameter D2 of the backlight driver on the first column of the transmission branch Z1 is 0, 1, 2…m-1 in the direction along the y-axis, the transmission branch The address delay parameter D2 of the backlight driver on the second column of Z1 is 0, 1, 2...m-1 in the direction along the y-axis, the address delay parameter D2 of the backlight driver on the first column of the transmission branch Z5 is 0, 1, 2...m-1 in the direction along the y-axis, the address delay parameter D2 of the backlight driver on the second column of the transmission branch Z5 is 0, 1, 2...m-1 in the direction along the y-axis, and the preset value d2 is an arithmetic difference value that follows the change of the address delay parameter, and is 0, 1, 2...m-1 in the direction along the y-axis. Based on the backlight driver The calculation formula of the delay time is shown in FIG11( b ). The delay time of the backlight drivers on the first row of the transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3 in the direction along the x-axis. The delay time of the backlight drivers on the second row of the transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…in the direction along the x-axis. D1×(m-1+m-1)×D3. Similarly, the delay time of the backlight driver on the first row of transmission branch Z5 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3 along the y-axis, and the delay time of the backlight driver on the second row of transmission branch Z5 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(m-1+m-1)×D3 along the y-axis.

[0148] In a possible transmission method, when the series connection method is row-by-row series connection and the series connection type is 1-type, that is, the series connection information of the backlight driver is the first row series connection information, the column coordinates corresponding to the coordinate information in the target address instruction of each backlight driver are used as the address delay parameter D2 of the backlight driver. For example, if it is known that the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…n-1 in sequence along the x-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…n-1 in sequence along the x-axis, and the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…n-1 in sequence along the x-axis, and the preset value d2 is a fixed value 1, then the calculation formula based on the delay time of the backlight driver is: , the delay time of each backlight driver is calculated as shown in Figure 12(a). The delay time of the backlight driver on the first transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the x-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the x-axis. The delay time of the backlight driver on the zth transmission branch Zz is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the x-axis.

[0149] In a possible transmission method, when the series connection method is row-by-row series connection and the series connection type is 1-type, that is, the series connection information of the backlight driver is the first row series connection information, the column coordinates corresponding to the coordinate information in the target address instruction of each backlight driver are used as the address delay parameter D2 of the backlight driver. For example, if it is known that the address delay parameter D2 of the backlight driver on the first transmission branch Z1 is 0, 1, 2…n-1 in the direction along the x-axis, the address delay parameter D2 of the backlight driver on the second transmission branch Z2 is 0, 1, 2…n-1 in the direction along the x-axis, and the address delay parameter D2 of the backlight driver on the zth transmission branch Zz is 0, 1, 2…n-1 in the direction along the x-axis, and the preset value d2 is an arithmetic difference value that follows the change of the address delay parameter, which is 0, 1, 2…n-1 in the direction along the x-axis. Then based on the backlight The calculation formula of the delay time of the driver is as shown in Figure 12(b). The delay time of the backlight driver on the first transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3 in the direction along the x-axis. Similarly, the delay time of the backlight driver on the second transmission branch Z2 is The delay time of the backlight driver on the zth transmission branch Zz along the direction of the x-axis is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3,… and the delay time of the backlight driver on the zth transmission branch Zz along the direction of the x-axis is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3.

[0150] In a possible transmission mode, when the series connection mode is row series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type row series connection information, the column coordinates corresponding to the coordinate information in the target address instruction of each backlight driver are used as the address delay parameter D2 of the backlight driver. For example, the backlight controller has z transmission branches, and two of the transmission branches Z1 and Z5 are taken as examples. If it is known that the address delay parameter D2 of the backlight driver on the first row of the transmission branch Z1 is from the direction along the x-axis The address delay parameter D2 of the backlight driver on the second row of the transmission branch Z1 is 0, 1, 2…n-1 in sequence along the x-axis, the address delay parameter D2 of the backlight driver on the first row of the transmission branch Z5 is 0, 1, 2…n-1 in sequence along the x-axis, the address delay parameter D2 of the backlight driver on the second row of the transmission branch Z5 is 0, 1, 2…n-1 in sequence along the x-axis, and the preset value d2 is a fixed value 1, then the calculation of the delay time of the backlight driver is based on The delay time of each backlight driver is calculated by the formula as shown in FIG13( a). The delay time of the backlight drivers on the first row of the transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the x-axis. The delay time of the backlight drivers on the second row of the transmission branch Z1 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the x-axis. 1×(n-1+1)×D3. Similarly, the delay time of the backlight driver on the first row of transmission branch Z5 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the y-axis, and the delay time of the backlight driver on the second row of transmission branch Z5 is D1×(0+1)×D3, D1×(1+1)×D3, D1×(2+1)×D3…D1×(n-1+1)×D3 in the direction along the y-axis.

[0151] In a possible transmission mode, when the series connection mode is row series connection and the series connection type is n-type, N-type, S-type, etc., that is, when the series connection information of the backlight driver is the second type row series connection information, the column coordinates corresponding to the coordinate information in the target address instruction of each backlight driver are used as the address delay parameter D2 of the backlight driver. If it is known that the address delay parameter D2 of the backlight driver on the first row of the transmission branch Z1 is 0, 1, 2...n-1 in the direction along the x-axis, the address delay parameter D2 of the backlight driver on the second row of the transmission branch Z1 is The number D2 is 0, 1, 2…n-1 in sequence along the x-axis, the address delay parameter D2 of the backlight driver on the first row of the transmission branch Z5 is 0, 1, 2…n-1 in sequence along the x-axis, the address delay parameter D2 of the backlight driver on the second row of the transmission branch Z5 is 0, 1, 2…n-1 in sequence along the x-axis, and the preset value d2 is an arithmetic difference value that follows the change of the address delay parameter, and is 0, 1, 2…n-1 in sequence along the x-axis. Based on the calculation formula of the delay time of the backlight driver, the calculation is The delay time of each backlight driver is shown in FIG13( b). The delay time of the backlight drivers on the first row of the transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3 in the direction along the x-axis. The delay time of the backlight drivers on the second row of the transmission branch Z1 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3 in the direction along the x-axis. 1+n-1)×D3. Similarly, the delay time of the backlight driver on the first row of transmission branch Z5 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3 in the direction along the y-axis, and the delay time of the backlight driver on the second row of transmission branch Z5 is D1×(0+0)×D3, D1×(1+1)×D3, D1×(2+2)×D3…D1×(n-1+n-1)×D3 in the direction along the y-axis.

[0152] In addition, the present application can also classify the types of delay time. In one possible implementation, when the series connection method is row-by-row series connection, the delay time can be the time from the start of scanning the backlight panel to the scanning to the corresponding target row, that is, the starting time of the delay time of a certain row is the starting time of the first row of the entire backlight panel scanning, and the end time of the delay time is the time when the row starts scanning, which is recorded as the first type of delay time.

[0153] The delay time can also be the time corresponding to the end of the previous row scan to the start of the target row scan, that is, the start time of the delay time of a row is the end time of the previous row scan of the row, and the end time of the delay time is the start time of the row scan, which is recorded as the second type of delay time.

[0154] When the series connection method is column-by-column series connection, the delay time can be the time from the start of scanning the backlight panel to the scanning to the corresponding target column, that is, the starting time of the delay time of a certain column is the starting time of the entire backlight panel scanning the first column, and the end time of the delay time is the time when the column starts scanning, which is recorded as the first type of delay time.

[0155] The delay time can also be the time corresponding to the end of the previous column scan to the start of the target column scan, that is, the start time of the delay time of a column is the end time of the previous column scan of the column, and the end time of the delay time is the start time of the column scan, which is recorded as the second type of delay time.

[0156] In another possible implementation, when the preset value d2 is a fixed value, the delay time is a first type delay time; when the preset value d2 changes with the address delay parameter D2, and D2+d2==1, the delay time is a second type delay time.

[0157] It should be noted that if Fig.14 As shown, it is a data architecture diagram provided by an embodiment of the present application, wherein Reset represents reset, CMD represents an instruction to be executed, Address#1~#n represents the position of the backlight driver, the Delay parameter represents the address delay parameter sent by the backlight controller to the backlight driver, and Data represents the drive control signal sent by the backlight controller 101 to the backlight driver 102. That is, the present application sends preset delay parameters and address instructions to the backlight driver through the backlight controller, and receives the preset delay parameters, target address instructions and preset clock cycle through the backlight driver to calculate the delay time, thereby reducing the configuration instructions while sending the delay time to the backlight driver to avoid EMC problems.

[0158] Based on the same technical concept, the embodiment of the present application also provides a backlight panel. The principle of the backlight panel to solve the problem is similar to the above-mentioned delay time setting method. Therefore, the implementation of the backlight panel refers to the implementation of the delay time setting method, and the repeated parts will not be repeated.

[0159] like Fig.15 , which is a schematic diagram of the structure of a backlight panel provided in an embodiment of the present application.

[0160] The backlight controller 1801 is used to send a dimming data packet to the first backlight driver in each transmission branch, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined by the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch;

[0161] The backlight driver 1802 is used to receive a dimming data packet, and calculate a delay time according to a preset delay parameter, a target address instruction and a preset clock cycle, and use the delay time as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

[0162] In some implementations, the backlight controller 1801 determines the address instruction in the following manner:

[0163] For each backlight driver 1802, according to the scanning mode of the backlight panel, determine the position coordinates of the backlight driver 1802 on the backlight panel;

[0164] Determine the series connection information of the backlight driver 1802 according to the series connection mode of the backlight driver 1802 in the transmission branch and the series connection type of the backlight driver 1802 in the transmission branch;

[0165] The address instruction is determined according to the position coordinates and the serial connection information.

[0166] In some implementations, for each backlight driver 1802, determining the position coordinates of the backlight driver 1802 on the backlight panel according to the scanning mode of the backlight panel includes:

[0167] According to the scanning method, the position of the first backlight driver 1802 to be scanned is taken as the starting point;

[0168] The starting point is taken as the origin, the row extension direction is taken as the direction of the x-axis, and the opposite direction of the column extension direction is taken as the direction of the y-axis to establish a coordinate system;

[0169] The position coordinates of the backlight driver 1802 are determined according to the position of the backlight driver 1802 in the coordinate system.

[0170] In some implementations, determining the series connection information of the backlight driver 1802 according to the series connection mode of the backlight driver 1802 in the transmission branch and the series connection type of the backlight driver 1802 in the transmission branch includes:

[0171] If the series connection mode is column-based series connection and the series connection type is the first target type, determining that the series connection information is first column series connection information;

[0172] If the series connection mode is column-based series connection, and the series connection type is other types except the first target type, determining that the series connection information is second column series connection information, wherein the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch;

[0173] If the series connection mode is row series connection and the series connection type is the second target type, determining that the series connection information is first row series connection information;

[0174] If the series connection mode is row series connection, and the series connection type is other types except the second target type, then determining that the series connection information is second row series connection information, wherein the second row series connection information includes second row sub-series connection information corresponding to each row of backlight drivers 1802 in the transmission branch;

[0175] Among them, the first target type represents that in the transmission branch where the backlight driver 1802 is located, the first backlight driver 1802 and the last backlight driver 1802 connected in series are located in the same column, and the second target type represents that in the transmission branch where the backlight driver 1802 is located, the first backlight driver 1802 and the last backlight driver 1802 connected in series are located in the same row.

[0176] Those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for setting a delay time, characterized in that: Applied to a backlight panel, the backlight panel comprises a transmission branch, a backlight controller and a backlight driver arranged in an array, each transmission branch comprises a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller, the method comprises: Sending a dimming data packet to the first backlight driver in each transmission branch through the backlight controller, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined through the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch; For each backlight driver, a dimming data packet is received by the backlight driver, and a delay time is calculated according to a preset delay parameter, a target address instruction and a preset clock cycle, and the delay time is used as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

2. The method according to claim 1, characterized in that The address instruction is determined by: For each backlight driver, according to the scanning mode of the backlight panel, the backlight controller determines the position coordinates of the backlight driver on the backlight panel; Determining the series connection information of the backlight driver through the backlight controller according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch; The address instruction is determined by the backlight controller according to the position coordinates and the serial connection information.

3. The method according to claim 2, characterized in that The determining, by the backlight controller, the position coordinates of the backlight driver on the backlight panel according to the scanning mode of the backlight panel comprises: According to the scanning mode, the backlight controller uses the position of the first backlight driver to be scanned as the starting point; Taking the starting point as the origin, the row extension direction as the direction of the x-axis, and the opposite direction of the column extension direction as the direction of the y-axis, a coordinate system is established through the backlight controller; The position coordinates of the backlight driver are determined by the backlight controller according to the position of the backlight driver in the coordinate system.

4. The method according to claim 2, characterized in that The determining, by the backlight controller, the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch comprises: If the series connection mode is column-based series connection and the series connection type is the first target type, the backlight controller determines that the series connection information is first column series connection information; If the series connection mode is column-based series connection, and the series connection type is other than the first target type, the backlight controller determines that the series connection information is second column series connection information, wherein the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch; If the series connection mode is row-by-row series connection and the series connection type is the second target type, determining, by the backlight controller, that the series connection information is first row series connection information; If the series connection mode is row series connection, and the series connection type is other types except the second target type, the backlight controller determines that the series connection information is second row series connection information, wherein the second row series connection information includes second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch; Among them, the first target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same column, and the second target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same row.

5. The method according to claim 4, characterized in that The step of determining the address instruction by the backlight controller according to the position coordinates and the series connection information comprises: If the series connection information is the first column series connection information, the backlight controller uses the row coordinates in the position coordinates as the address instruction, or uses the first column series connection information and the row coordinates as the address instruction; If the series connection information is second column series connection information, the backlight controller uses the second column sub-series connection information corresponding to the column where the backlight driver is located and the row coordinates in the position coordinates as the address instruction; If the series connection information is the first row series connection information, the backlight controller uses the column coordinates in the position coordinates as the address instruction, or uses the first row series connection information and the column coordinates as the address instruction; If the series connection information is second-row series connection information, the backlight controller uses the second-row sub-series connection information corresponding to the row where the backlight driver is located and the column coordinates in the position coordinates as the address instruction.

6. The method according to claim 5, characterized in that According to the preset delay parameter, the target address instruction and the preset clock cycle, the delay time is calculated by the backlight driver, including: determining an address delay parameter by the backlight driver according to the target address instruction; The delay time is calculated by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle.

7. The method according to claim 6, characterized in that The step of determining an address delay parameter by the backlight driver according to the target address instruction comprises: The backlight driver uses the coordinate information in the target address instruction as the address delay parameter, wherein the coordinate information includes row coordinates or column coordinates.

8. The method according to claim 6, characterized in that The step of calculating the delay time by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle includes: The backlight driver uses the product of the preset delay parameter, the address delay parameter and the clock cycle as the delay time.

9. The method according to claim 6, characterized in that The step of calculating the delay time by the backlight driver according to the preset delay parameter, the address delay parameter and the clock cycle includes: Calculating the sum of the address delay parameter and a preset value by the backlight driver, and taking the product of the preset delay parameter, the sum and the clock cycle as the delay time, wherein the preset value; The preset value is a fixed value, or changes with the address delay parameter.

10. A backlight panel, characterized in that: It includes transmission branches, a backlight controller and backlight drivers arranged in an array, each transmission branch includes a plurality of backlight drivers connected in series, and the first backlight driver on each transmission branch is electrically connected to the backlight controller; The backlight controller is used to send a dimming data packet to the first backlight driver in each transmission branch, wherein the dimming data packet carries a preset delay parameter and an address instruction corresponding to each backlight driver, and the address instruction is determined by the backlight controller according to the position coordinates of the backlight driver on the backlight panel, the series connection mode of the backlight driver in the transmission branch, and the series connection type of the backlight driver in the transmission branch; For each backlight driver, the backlight driver is used to receive a dimming data packet, and calculate a delay time according to a preset delay parameter, a target address instruction and a preset clock cycle, and use the delay time as the delay time for the backlight driver to respond to the dimming data, wherein the target address instruction is an address instruction carried in the dimming data packet and corresponding to the backlight driver.

11. The backlight panel according to claim 10, wherein: The backlight controller determines the address instruction in the following manner: For each backlight driver, determining the position coordinates of the backlight driver on the backlight panel according to the scanning mode of the backlight panel; Determining the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch; The address instruction is determined according to the position coordinates and the serial connection information.

12. The backlight panel according to claim 11, wherein: For each backlight driver, determining the position coordinates of the backlight driver on the backlight panel according to the scanning mode of the backlight panel includes: According to the scanning method, the position of the first backlight driver to be scanned is taken as the starting point; The starting point is taken as the origin, the row extension direction is taken as the direction of the x-axis, and the opposite direction of the column extension direction is taken as the direction of the y-axis to establish a coordinate system; The position coordinates of the backlight driver are determined according to the position of the backlight driver in the coordinate system.

13. The backlight panel according to claim 11, wherein: Determining the series connection information of the backlight driver according to the series connection mode of the backlight driver in the transmission branch and the series connection type of the backlight driver in the transmission branch includes: If the series connection mode is column-based series connection and the series connection type is the first target type, determining that the series connection information is first column series connection information; If the series connection mode is column-based series connection, and the series connection type is other types except the first target type, determining that the series connection information is second column series connection information, wherein the second column series connection information includes second column sub-series connection information corresponding to each column of backlight drivers in the transmission branch; If the series connection mode is row series connection and the series connection type is the second target type, determining that the series connection information is first row series connection information; If the series connection mode is row series connection and the series connection type is other types except the second target type, determining that the series connection information is second row series connection information, wherein the second row series connection information includes second row sub-series connection information corresponding to each row of backlight drivers in the transmission branch; Among them, the first target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same column, and the second target type represents that in the transmission branch where the backlight driver is located, the first backlight driver and the last backlight driver connected in series are located in the same row.

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