Data feedback system, display device, and data feedback method

Abstract

The invention provides a data feedback system, a display device and a data feedback method, a first backlight driver in each group of backlight drivers transmits detection data of the first backlight driver to a second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; the detection data of all the backlight drivers in the same group are transmitted to an integrated data processing unit until the last backlight driver in each group of backlight drivers; and the integrated data processing unit feeds back detection data of all groups of backlight drivers to the front-end controller. According to the scheme, the detection data of all the backlight drivers in the backlight unit are received through the data integration processing unit and fed back to the front-end controller, the data feedback efficiency is improved, and the wiring layout in the lamp panel is optimized.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a data feedback system, a display device and a data feedback method. Background Art

[0002] The existing mini-led (mini light-emitting diode) backlight driver mainly adopts single-line transmission and dual-line transmission.

[0003] In the single-line transmission scheme, since the signal line has to perform both data transmission and data readback, the transmission and readback cannot be completed at the same time, which increases the time required and reduces the readback efficiency.

[0004] The two-line transmission solution requires a separate read-back data line for each column of backlight driver, which increases the layout complexity of the mini-led light board. Summary of the invention

[0005] The present application provides a data feedback system, a display device and a data feedback method, so as to improve the data feedback efficiency and reduce the circuit complexity.

[0006] In a first aspect, the present application provides a data feedback system, the system comprising:

[0007] A backlight unit and a data integration processing unit, wherein the backlight unit includes a plurality of groups of backlight drivers, and each group of backlight drivers includes a plurality of cascaded backlight drivers;

[0008] The data integration processing unit is connected to the last backlight driver in each group of backlight drivers;

[0009] The first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers transmits the detection data of all backlight drivers in the same group to the data integration processing unit;

[0010] The data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller.

[0011] Optionally, the first backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver to the second backlight driver in the same group through a signal line;

[0012] The second backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group, and the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group through the signal line;

[0013] Until the last backlight driver in each group of backlight drivers, the detection data of all backlight drivers in the same group are transmitted to the data integration processing unit.

[0014] Optionally, the data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via a single line or multiple lines.

[0015] Optionally, the data integration processing unit receives the detection data of all backlight drivers in the same group through the first data line;

[0016] The data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via the second data line.

[0017] Optionally, when the number of light-emitting units in the backlight unit is greater than or equal to a preset threshold, the integrated processing unit transmits detection data of all groups of backlight drivers to the front-end controller via multiple lines;

[0018] When the number of the light-emitting units in the backlight unit is less than a preset threshold, the integrated processing unit transmits the detection data of all groups of backlight drivers to the front-end controller via a single line.

[0019] Optionally, the data integration processing unit includes:

[0020] Data receiving module, data processing module, data sending module and power supply module;

[0021] The data receiving module is connected to the last backlight driver in each group of backlight drivers, the data processing module is connected to the data receiving module, the data sending module is connected to the data processing module and the front-end controller, and the power supply module is connected to the data receiving module, the data processing module and the data sending module;

[0022] The power supply module supplies power to the data receiving module, the data processing module and the data sending module;

[0023] The data receiving module receives the detection data of all groups of backlight drivers, and sends the detection data of all groups of backlight drivers to the data processing module;

[0024] The data processing module integrates the detection data of all groups of backlight drivers and sends the integrated detection data to the data sending module;

[0025] The data sending module sends the integrated and processed detection data to the front-end controller.

[0026] Optionally, the power supply of the power module is the same as the power supply of the backlight driver.

[0027] Optionally, the detection data includes one or more of open circuit data, short circuit data, channel voltage data and temperature data.

[0028] In a second aspect, the present application provides a display device, the above-mentioned data feedback system, and a front-end controller;

[0029] The data feedback system feeds back the detection data of all backlight drivers in the backlight unit to the front-end controller;

[0030] The front-end controller controls each backlight driver according to the detection data of each backlight driver.

[0031] Optionally, the front-end controller includes: a backlight controller, a timing controller or a system-on-chip.

[0032] In a third aspect, the present application provides a data feedback method, wherein a backlight unit includes multiple groups of backlight drivers, each group of backlight drivers includes multiple cascaded backlight drivers, and the method is used in a data integration processing unit, wherein the data integration processing unit is connected to the last backlight driver in each group of backlight drivers, and the method includes:

[0033] receiving detection data of all backlight drivers in each group of backlight drivers sent by the last backlight driver in the same group;

[0034] Sending detection data of each group of backlight drivers to the front-end controller;

[0035] Among them, the first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers receives the detection data of other backlight drivers in the same group; the other backlight drivers include all backlight drivers except the last backlight driver in the same group.

[0036] In a fourth aspect, the present application provides an electronic device, including: a memory and a processor;

[0037] The memory is used to store instructions; the processor is used to call the instructions in the memory to execute the above-mentioned data feedback method.

[0038] In a fifth aspect, the present application provides a computer-readable storage medium, in which computer instructions are stored. When at least one processor of an electronic device executes the computer instructions, the electronic device executes the above-mentioned data feedback method.

[0039] In a sixth aspect, the present application provides a computer program product, which includes computer instructions. When at least one processor of an electronic device executes the computer instructions, the electronic device executes the above-mentioned data feedback method.

[0040] The data feedback system provided by the present application includes a backlight unit and a data integration processing unit. The backlight unit includes multiple groups of backlight drivers, each group of backlight drivers includes multiple cascaded backlight drivers, and the data integration processing unit is connected to the last backlight driver in each group of backlight drivers. The first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers transmits the detection data of all backlight drivers in the same group to the integrated data processing unit. The integrated data processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller. The scheme of the present application receives the detection data of all backlight drivers in the backlight unit through the data integration processing unit and feeds it back to the front-end controller, which improves the data feedback efficiency compared with the existing single-line transmission scheme; compared with the existing two-line transmission scheme, it reduces the wiring, optimizes the wiring layout inside the light board, and reduces the number of pins of the front-end controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 It is a schematic diagram of a single-line transmission architecture;

[0043] Figure 2 A schematic diagram of a dual-line transmission architecture;

[0044] Figure 3 A schematic diagram of the structure of a data feedback system provided in one embodiment of the present application;

[0045] Figure 4 A schematic diagram of a transmission path provided in an embodiment of the present application;

[0046] Figure 5 A data schematic diagram provided for an embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of an integrated processing unit provided in one embodiment of the present application;

[0048] Figure 7 A partial structural schematic diagram of a display device provided in one embodiment of the present application;

[0049] Figure 8 A schematic diagram of the structure of a data feedback device provided in one embodiment of the present application;

[0050] Fig. 9 A schematic diagram of the hardware structure of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] The existing mini-led (mini light-emitting diode) backlight driver mainly adopts single-line transmission and dual-line transmission.

[0053] Figure 1 The schematic diagram of the architecture of single-line transmission is shown, and the backlight unit includes a plurality of backlight drivers 10 arranged in an array. The backlight drivers 10 in the same column are cascaded through a signal line 101, and the first backlight driver in each column is connected to the front-end controller 20 through the signal line 101. On the one hand, the signal line 10 is used to realize the transmission of the display data of the mini-led backlight, and on the other hand, the detection data of the mini-led backlight needs to be fed back to the front-end controller 20. The detection data may include, for example, open circuit data, short circuit data, channel voltage data, etc. Therefore, in single-line transmission, the signal line 101 connected in series with the backlight drivers in the same column is used for both data transmission and data feedback, that is, time-division multiplexing is required.

[0054] However, in the single-line transmission scheme, since the signal line is used for both data transmission and data readback, the transmission and readback cannot be completed at the same time. The data readback needs to be completed during the idle time of the transmitted data, which increases the time required and reduces the readback efficiency.

[0055] Figure 2 The schematic diagram of the architecture of two-wire transmission is shown. The backlight unit includes a plurality of backlight drivers 10 arranged in an array. The backlight drivers 10 in the same column are cascaded through a signal line 101, and the first backlight driver in each column is connected to the front-end controller 20 through the signal line 101, and the last backlight driver in each column is connected to the front-end controller 20 through a signal line 102. In two-wire transmission, each column of backlight drivers 10 requires a signal line 101 for data transmission, and then another signal line 102 is added for data feedback. Two-wire transmission can achieve data transmission and readback at the same time, which increases the readback efficiency.

[0056] However, the two-wire transmission solution requires a separate read-back data line for each column of backlight driver, which increases the complexity of the layout line in the mini-LED light board and increases the number of connector pins, resulting in increased costs.

[0057] In response to the above problems, the present application proposes a data feedback system, which receives the detection data of all backlight drivers through a data integration processing unit and feeds back the data to the front-end controller, thereby improving the data feedback efficiency, reducing the wiring inside the light board, and reducing the wiring complexity.

[0058] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0059] Figure 3 FIG. 1 shows a schematic diagram of a data feedback system provided by an embodiment of the present application. Figure 3 As shown, the data feedback system of this embodiment may include:

[0060] A backlight unit 50 and a data integration processing unit 30, wherein the backlight unit 50 includes a plurality of backlight driver groups, each of which includes a plurality of cascaded backlight drivers 10;

[0061] The data integration processing unit 30 is connected to the last backlight driver 10 in each group of backlight drivers 10;

[0062] The first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers transmits the detection data of all backlight drivers 10 in the same group to the data integration processing unit 30;

[0063] The data integration processing unit 20 feeds back the detection data of all groups of backlight drivers to the front-end controller 20 .

[0064] In the embodiment of the present application, the data integration processing unit 20 receives the detection data of all groups of backlight drivers 10, and sends the detection data of all groups of backlight drivers 10 to the front-end receiver. Compared with the existing single-line transmission scheme, the data feedback efficiency is improved; compared with the existing two-line transmission scheme, the wiring is reduced, the wiring layout inside the light board is optimized, and the number of pins of the front-end controller 20 is reduced.

[0065] In actual application, the same group of backlight drivers are cascaded through the signal line 101, and the first backlight driver in each group of backlight drivers is connected to the front-end controller 20 through the signal line 101. For each group of backlight drivers, the first backlight driver transmits the detection data of the first backlight driver to the second backlight driver through the signal line 101; the second backlight driver transmits the detection data of the first backlight driver and the detection data of the second backlight driver to the third backlight driver through the signal line 101; until the penultimate backlight driver transmits the detection data from the first backlight driver to the penultimate backlight driver to the last backlight driver through the signal line 101.

[0066] The detection data of each backlight driver 10 may include one or more of open circuit data, short circuit data, channel voltage (FB) data, and temperature data.

[0067] In practical applications, the backlight unit 50 may include backlight drivers 10 arranged in an array, the first backlight driver 10 in each column of backlight drivers is connected to the front-end controller 20 , and the last backlight driver in each column of backlight drivers is connected to the data integration processing unit 30 .

[0068] Correspondingly, for each column of backlight drivers, the first backlight driver can transmit the detection data of the first backlight driver to the second backlight driver; the second backlight driver transmits the detection data of the first backlight driver and the detection data of the second backlight driver to the third backlight driver; and so on, until the last backlight driver transmits the detection data of all backlight drivers in the same column to the data integration processing unit 30.

[0069] The backlight unit 50 may also include a plurality of backlight drivers arranged in a Z shape.

[0070] In some embodiments, the first backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver to the second backlight driver in the same group through the signal line 101; the second backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group through the signal line 101; until the last backlight driver in each group of backlight drivers transmits the detection data of all backlight drivers in the same group to the data integration processing unit 30.

[0071] Specifically, after the first backlight driver of each group of backlight drivers receives the display data of all backlight drivers in the same group, it retains the display data of the first backlight driver and transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver to the second backlight driver in the same group through the signal line 101.

[0072] After the second backlight driver of each group of backlight drivers receives the display data of all backlight drivers in the same group and the detection data of the first backlight driver in the same group, it retains the display data of the second backlight driver and transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group through the signal line.

[0073] And so on, until the last backlight driver in each group of backlight drivers receives the brightness data of all the backlight drivers in the same group, as well as the detection data of the first backlight driver to the second to last backlight driver in the same group.

[0074] Then, the last backlight driver in each group of backlight drivers can transmit the detection data of all backlight drivers in the same group to the data integration processing unit 30 through the connection line. The connection line refers to the connection between the last backlight driver and the data integration processing unit 30, which can be the above-mentioned signal line.

[0075] It can be understood that after each backlight driver receives the display data of all backlight drivers in the same group, it only retains the display data of the backlight driver itself.

[0076] It should be noted that after the last backlight driver in each group of backlight drivers receives the display data of all backlight drivers in the same group, the display data of the last backlight driver can be extracted to control the brightness of the reflective unit connected to the last backlight driver. The light-emitting unit may include one or more mini-LEDs.

[0077] Figure 4 A transmission path diagram is shown, such as Figure 4 As shown, three backlight drivers are taken as an example. For the convenience of description, the three backlight drivers are respectively called the first backlight driver, the second backlight driver and the third backlight driver. The first backlight driver is connected to the front-end controller, and the third backlight driver is connected to the data integration processing unit.

[0078] After the first backlight driver receives the display data from the first backlight driver to the third backlight driver, the first backlight driver retains the display data of the first backlight driver, and transmits the display data from the first backlight driver to the third backlight driver and the detection data of the first backlight driver to the second backlight driver. After the second backlight driver receives the display data from the first backlight driver to the third backlight driver and the detection data of the first backlight driver, the second backlight driver transmits the display data from the first backlight driver to the third backlight driver, the detection data of the first backlight driver and the detection data of the second backlight driver to the third backlight driver. After the third backlight driver receives the display data from the first backlight driver to the third backlight driver and the detection data of the first backlight driver and the second backlight driver, the display data from the first backlight driver to the third backlight driver and the detection data of the first backlight driver to the third backlight driver may be transmitted to the data integration processing unit, or only the detection data from the first backlight driver to the third backlight driver may be transmitted to the data integration processing unit.

[0079] The first to third backlight drivers include a first backlight driver, a second backlight driver and a third backlight driver.

[0080] For ease of understanding, Figure 4 The data of point1, point2 and point3 are detected, point1 can be understood as the signal line between the first backlight driver and the front-end controller, point2 can be understood as the signal line between the first backlight driver and the second backlight driver, and point3 can be understood as the signal line between the third backlight driver and the data integration processing unit.

[0081] like Figure 5 As shown, point1 only contains the display data from the first backlight driver to the third backlight driver sent by the front-end controller; point2 contains the display data from the first backlight driver to the third backlight driver, and the detection data of the first backlight driver; point3 contains the display data from the first backlight driver to the third backlight driver, and the detection data from the first backlight driver to the third backlight driver. And because the first backlight driver needs to extract the display data of the first backlight driver and other related processing after receiving the display data from the first backlight driver to the third backlight driver, there is a time difference T1 between point1 and point2, and there are two time differences 2T1 between point2 and point3. Similarly, there is a time difference T1 between two adjacent backlight drivers. In actual applications, time T1 is at the ns level and does not affect the overall function.

[0082] In some embodiments, the data integration processing unit can feed back the detection data of all groups of backlight drivers to the front-end controller via a single line or multiple lines. For example, the single line or multiple lines can be determined according to the requirements of the front-end controller or according to the amount of detection data.

[0083] In some examples, when the number of light-emitting units in the backlight unit is greater than or equal to a preset threshold, the integrated data processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via multiple lines. It can be understood that when there are more mini-leds, the amount of detection data is also larger, and a multi-line transmission protocol can be used to improve transmission efficiency.

[0084] When the number of light-emitting units in the backlight unit is less than a preset threshold, the integrated data processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via a single line. It can be understood that when there are fewer mini-leds, the amount of detection data is small. In order to simplify the structure, a single-line transmission protocol can be used.

[0085] In other examples, if the front-end controller only supports a single line, the integrated data processing unit can transmit the detection data of all groups of backlight drivers to the front-end controller through a single line; if the front-end controller supports multiple lines, the integrated data processing unit can transmit the detection data of all groups of backlight drivers to the front-end controller through multiple lines.

[0086] In some embodiments, the data integration processing unit is connected to the last backlight driver in each group of backlight drivers via a first data line, and the data integration processing unit is connected to the front-end controller via a second data line. Accordingly, the data integration processing unit receives the detection data of all backlight drivers in the same group via the first data line, and feeds back the detection data of all groups of backlight drivers to the front-end controller via the second data line. Since the first data line and the second data line are independent data lines, the data integration processing unit can send out the received detection data at any time without affecting the backlight driver.

[0087] In some embodiments, Figure 6 As shown, the data integration processing unit includes a data receiving module 301, a data processing module 302, a data sending module 303, and a power module 304. The data receiving module 301 is connected to the last backlight driver in each group of backlight drivers, the data processing module 302 is connected to the data receiving module 301, the data sending module 303 is connected to the data processing module 302 and the front-end controller, and the power module 304 is connected to the data receiving module 301, the data processing module 302 and the data sending module 303.

[0088] The power supply module 304 supplies power to the data receiving module 301, the data processing module 302 and the data sending module 303; the data receiving module 301 receives the detection data of all groups of backlight drivers, and sends the detection data of all groups of backlight drivers to the data processing module 302; the data processing module 302 integrates and processes the detection data of all groups of backlight drivers, and sends the integrated and processed detection data to the data sending module 303; the data sending module 303 sends the integrated and processed detection data to the front-end controller.

[0089] like Figure 6 As shown, the data receiving module 301 may include multiple input terminals, each of which is connected to the last backlight driver in a group of backlight drivers. For example, if the backlight unit includes n groups of backlight drivers, the data receiving module 301 may include input terminals Input1-Input n, the last backlight driver of the first group of backlight drivers is connected to the input terminal Input1, the last backlight driver of the second group of backlight drivers is connected to the input terminal Input2, and so on. The last backlight driver of the nth group of backlight drivers is connected to the input terminal Input n.

[0090] The data sending module 303 may include multiple output terminals, each of which may output detection data of a group of backlight drivers. For example, if the backlight unit includes n groups of backlight drivers, the data sending module may include output terminals Output1-Output n, where output terminal Output1 outputs the first group of backlight drivers, output terminal Output2 outputs the second group of backlight drivers, and so on, and output terminal Output n outputs the nth group of backlight drivers.

[0091] In some examples, the data processing module 302 can process the detection data of all groups of backlight drivers according to the needs of the front-end controller. For example, the data processing module 302 can integrate the received detection data of all groups of backlight drivers into one data and send it to the front-end controller. The data processing module 302 can also not process the detection data, and directly send the detection data of all groups of backlight drivers to the front-end controller through the data sending module 303.

[0092] In some examples, the power supply of the power module and the power supply of the backlight driver can be the same to simplify the system architecture.

[0093] The data feedback system provided in the present application receives the detection data of all backlight drivers through the data integration processing unit and feeds back the data to the front-end controller, thereby improving the data feedback efficiency, reducing the wiring inside the light board, and reducing the wiring complexity.

[0094] The present application also provides a display device, comprising the above-mentioned data feedback system and a front-end controller;

[0095] The data feedback system feeds back the detection data of all backlight drivers in the backlight unit to the front-end controller;

[0096] The front-end controller controls each backlight driver according to the detection data of each backlight driver.

[0097] For example, the detection data includes channel voltage data, and the front-end controller can control the brightness of the light-emitting units connected to each backlight driver according to the channel voltage data of each backlight driver; the detection data includes open circuit data, and the front-end controller can control whether each backlight driver stops working according to the open circuit data of each backlight driver.

[0098] By way of example, the front-end controller 20 may include a backlight controller (Dimmer controller), a timing controller (TCON) or a system on chip (SOC).

[0099] Figure 7 A partial structural schematic diagram of a display device is shown. Figure 7As shown, the display device includes a system-level chip 301, a backlight controller 302, a timing controller 303 and a backlight unit 50, the system-level chip 301 is connected to the backlight controller 302 and the timing controller 303, the timing controller 303 is connected to the backlight controller 302, and the backlight controller 302 is connected to the backlight unit 50. The timing controller 303 is responsible for the timing action of the liquid crystal screen to ensure that the image can be displayed correctly, and is also responsible for the display function and signal transmission of the backlight. The timing controller 303 converts the video signal output by the system-level chip 301 into a data signal that can be directly used by the liquid crystal screen and a control signal of the backlight driver 10. The timing controller 303 can accurately control the brightness and timing of each light-emitting unit to achieve a higher contrast. The system-level chip 301, the timing controller 303 and the backlight controller 302 work together. The system-level chip 301, as the core component, is responsible for the overall control and data processing of the device; the timing controller 303 converts the video signal into a format that can be used by the LCD screen to ensure that the image is displayed correctly; and the backlight controller 302 focuses on backlight control to improve the image quality. The three together constitute the display system of the display device, providing users with a better visual experience.

[0100] Then, the data integration processing unit can be connected to the backlight controller, or the timing controller, or the system-level chip. When the data integration processing unit is connected to the backlight controller, the data integration processing unit can feed back the detection data of all groups of backlight drivers to the backlight controller. The backlight controller can generate a control signal for each backlight driver based on the detection data of each backlight driver, and send the control signal of each backlight driver in the same group of backlight drivers to the first backlight driver in the same group of backlight drivers.

[0101] When the data integration processing unit is connected to the timing controller, the data integration processing unit can feed back the detection data of all groups of backlight drivers to the timing controller, the timing controller can generate a control signal for each backlight driver based on the detection data of each backlight driver, and send the control signal of each backlight driver to the backlight controller, and the backlight controller sends the control signal of each backlight driver in the same group of backlight drivers to the first backlight driver in the same group of backlight drivers.

[0102] When the data integration processing unit is connected to the system-level chip, the data integration processing unit can send the detection data of all groups of backlight drivers to the system-level chip. The system-level chip can generate a control signal for each backlight driver based on the detection data of each backlight driver, and send the control signal of each backlight driver to the backlight controller. The backlight controller can send the control signal of each backlight driver in the same group of backlight drivers to the first backlight driver in the same group of backlight drivers.

[0103] The first backlight driver in each group of backlight drivers extracts the control signal of the first backlight driver, and sends the control signal of each backlight driver in the same group to the second backlight driver. The second backlight driver in each group of backlight drivers extracts the control signal of the second backlight driver, and sends the control signal of each backlight driver in the same group to the third backlight driver, until the control signal of each backlight driver in the same group is sent to the last backlight driver. After receiving the control signal of all backlight drivers in the same group, each backlight driver can extract the control signal of the backlight driver itself, thereby realizing the control of each backlight driver.

[0104] The present application also provides a data feedback method, wherein the backlight unit includes multiple groups of backlight drivers, each group of backlight drivers includes multiple cascaded backlight drivers, the method is used for a data integration processing unit, the data integration processing unit is connected to the last backlight driver in each group of backlight drivers, and the data detection data provided in this embodiment includes the following steps:

[0105] S101 : receiving detection data of all backlight drivers in each group of backlight drivers sent by the last backlight driver in the same group.

[0106] S102: Send the detection data of each group of backlight drivers to the front-end controller.

[0107] Among them, the first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers receives the detection data of other backlight drivers in the same group, and the other backlight drivers include all backlight drivers except the last backlight driver in the same group.

[0108] The specific implementation principle and technical effects of the data feedback method provided in the embodiment of the present application can be found in the above-mentioned system embodiment, which will not be described in detail in this embodiment.

[0109] Figure 8 A schematic diagram of the structure of a data feedback device provided in an embodiment of the present application is shown. Figure 8 As shown, the data feedback device 60 of this embodiment is used to implement the operation corresponding to the data integration processing unit in any of the above method embodiments. The data feedback device 60 of this embodiment includes:

[0110] The receiving module 61 is used to receive the detection data of all the backlight drivers in each group of backlight drivers sent by the last backlight driver in the group;

[0111] Among them, the first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers receives the detection data of other backlight drivers in the same group, and the other backlight drivers include all backlight drivers except the last backlight driver in the same group.

[0112] The sending module 62 is used to send the detection data of each group of backlight drivers to the front-end controller.

[0113] The data feedback device 60 provided in the embodiment of the present application can execute the above method embodiment. Its specific implementation principle and technical effects can be found in the above method embodiment, and this embodiment will not be repeated here.

[0114] Fig. 9 FIG. 1 shows a hardware structure diagram of an electronic device provided in an embodiment of the present application. Fig. 9 As shown, the electronic device 70 is used to implement the operations corresponding to the data integration processing unit in any of the above method embodiments. The electronic device 70 of this embodiment may include: a memory 71, a processor 72 and a communication interface 73.

[0115] The memory 71 is used to store computer instructions. The memory 71 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a disk or an optical disk.

[0116] The processor 72 is used to execute the computer instructions stored in the memory to implement the method in the above embodiment. For details, please refer to the relevant description in the above method embodiment. The processor 72 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the invention can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0117] Optionally, the memory 71 may be independent or integrated with the processor 72 .

[0118] The communication interface 73 may be connected to the processor 72. The processor 72 may control the communication interface 73 to implement the functions of receiving and sending signals.

[0119] The electronic device provided in this embodiment can be used to execute the above method, and its implementation method and technical effect are similar, which will not be described in detail in this embodiment.

[0120] The present application also provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed by a processor, they are used to implement the methods provided in the various embodiments described above.

[0121] The present application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. At least one processor of a device can read the computer instructions from the computer-readable storage medium, and at least one processor executes the computer instructions so that the device implements the methods provided in the various embodiments described above.

[0122] An embodiment of the present application also provides a chip, which includes a memory and a processor, wherein the memory is used to store computer instructions, and the processor is used to call and execute the computer instructions from the memory, so that a device equipped with the chip executes the methods described in the various possible implementation modes above.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A data feedback system, characterized in that: The system comprises: A backlight unit and a data integration processing unit, wherein the backlight unit includes a plurality of groups of backlight drivers, and each group of backlight drivers includes a plurality of cascaded backlight drivers; The data integration processing unit is connected to the last backlight driver in each group of backlight drivers; The first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers transmits the detection data of all backlight drivers in the same group to the data integration processing unit; The data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller.

2. The data feedback system according to claim 1, characterized in that: The first backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group and the detection data of the first backlight driver to the second backlight driver in the same group through the signal line; The second backlight driver in each group of backlight drivers transmits the display data of all backlight drivers in the same group, and the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group through the signal line; Until the last backlight driver in each group of backlight drivers, the detection data of all backlight drivers in the same group are transmitted to the data integration processing unit.

3. The data feedback system according to claim 1, characterized in that: The data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via a single line or multiple lines.

4. The data feedback system according to claim 1, characterized in that: The data integration processing unit receives the detection data of all backlight drivers in the same group through the first data line; The data integration processing unit feeds back the detection data of all groups of backlight drivers to the front-end controller via the second data line.

5. The data feedback system according to claim 3, characterized in that: When the number of light-emitting units in the backlight unit is greater than or equal to a preset threshold, the integrated processing unit transmits detection data of all groups of backlight drivers to the front-end controller via multiple lines; When the number of the light-emitting units in the backlight unit is less than a preset threshold, the integrated processing unit transmits the detection data of all groups of backlight drivers to the front-end controller via a single line.

6. The data feedback system according to any one of claims 1 to 5, characterized in that: The data integration processing unit includes: Data receiving module, data processing module, data sending module and power supply module; The data receiving module is connected to the last backlight driver in each group of backlight drivers, the data processing module is connected to the data receiving module, the data sending module is connected to the data processing module and the front-end controller, and the power supply module is connected to the data receiving module, the data processing module and the data sending module; The power supply module supplies power to the data receiving module, the data processing module and the data sending module; The data receiving module receives the detection data of all groups of backlight drivers, and sends the detection data of all groups of backlight drivers to the data processing module; The data processing module integrates the detection data of all groups of backlight drivers and sends the integrated detection data to the data sending module; The data sending module sends the integrated and processed detection data to the front-end controller.

7. The data feedback system according to claim 6, characterized in that: The power supply of the power supply module is the same as the power supply of the backlight driver.

8. The data feedback system according to any one of claims 1 to 5, characterized in that: The detection data includes one or more of open circuit data, short circuit data, channel voltage data and temperature data.

9. A display device, characterized in that: A data feedback system comprising any one of claims 1 to 8, and a front-end controller; The data feedback system feeds back the detection data of all backlight drivers in the backlight unit to the front-end controller; The front-end controller controls each backlight driver according to the detection data of each backlight driver.

10. The display device according to claim 9, characterized in that The front-end controller includes: a backlight controller, a timing controller or a system-level chip.

11. A data feedback method, characterized in that: The backlight unit includes multiple groups of backlight drivers, each group of backlight drivers includes multiple cascaded backlight drivers, the method is used in a data integration processing unit, the data integration processing unit is connected to the last backlight driver in each group of backlight drivers, and the method includes: receiving detection data of all backlight drivers in each group of backlight drivers sent by the last backlight driver in the same group; Sending detection data of each group of backlight drivers to the front-end controller; Among them, the first backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver to the second backlight driver in the same group; the second backlight driver in each group of backlight drivers transmits the detection data of the first backlight driver and the second backlight driver in the same group to the third backlight driver in the same group; until the last backlight driver in each group of backlight drivers receives the detection data of other backlight drivers in the same group; the other backlight drivers include all backlight drivers except the last backlight driver in the same group.

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