Data feedback system, display device and data feedback method

Abstract

The application 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 a third backlight driver in the same group. Until a last backlight driver in each group of backlight drivers transmits detection data of all backlight drivers in the same group to an integrated data processing unit. The integrated data processing unit feeds back the detection data of all groups of backlight drivers to a front-end controller. The scheme of the application receives the detection data of all backlight drivers in the backlight unit through the integrated data processing unit and feeds back the detection data to the front-end controller, thereby improving the data feedback efficiency and optimizing the wiring layout inside the lamp panel.

Description

TECHNICAL FIELD

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

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

[0003] The single-line transmission scheme needs to transmit data and read back data through the signal line, and the transmission and the read back cannot be completed at the same time, which increases the required time and reduces the read back efficiency.

[0004] The double-line transmission scheme needs a separate read back data line for each column of backlight drivers, which increases the layout line complexity in the mini-led lamp panel. SUMMARY

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

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

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

[0008] the data integration processing unit being 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; and the last backlight driver in each group of backlight drivers transmits the detection data of all the 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 the groups of backlight drivers to a front-end controller.

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

[0013] The last backlight driver in each group of backlight drivers transmits the detection data of all the backlight drivers in the same group to the data integration processing unit.

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

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

[0016] The data integration processing unit feeds back the detection data of all the groups of backlight drivers to the front-end controller through a 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 integration processing unit transmits the detection data of all the groups of backlight drivers to the front-end controller through multiple lines.

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

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

[0020] a data receiving module, a data processing module, a data sending module, and a 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 the groups of backlight drivers and sends the detection data of all the groups of backlight drivers to the data processing module.

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

[0025] The data sending module sends the 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 data feedback system, and the front-end controller.

[0029] The data feedback system feeds the detection data of all the 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, a backlight unit includes a plurality of groups of backlight drivers, each group of backlight drivers includes a plurality of 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:

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

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

[0035] In each group of backlight drivers, the first backlight driver 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, and until the last backlight driver in each group of backlight drivers receives the detection data of the other backlight drivers in the same group; the other backlight drivers include all the 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, and 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, which stores computer instructions, when at least one processor of an electronic device executes the computer instructions, the electronic device executes the 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 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 a plurality of groups of backlight drivers, each group of backlight drivers including a plurality of 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 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 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; and the last backlight driver in each group of backlight drivers transmits 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 a front-end controller. The scheme of the present application receives detection data of all backlight drivers in the backlight unit through the data integration processing unit and feeds back the detection data to the front-end controller, thereby improving data feedback efficiency compared with the existing single-wire transmission scheme, reducing wiring, optimizing wiring layout inside the lamp panel, and reducing the number of pins of the front-end controller compared with the existing double-wire transmission scheme. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

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

[0043] Figure 2 It is a schematic diagram of a double-wire transmission architecture;

[0044] Figure 3 It is a schematic diagram of the structure of the data feedback system provided by an embodiment of the present application;

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

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

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

[0048] Figure 7 A partial structure diagram of a display device provided for an embodiment of the present application;

[0049] Figure 8 A structure diagram of a data feedback device provided for an embodiment of the present application;

[0050] Figure 9 A hardware structure diagram of an electronic device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the present application will be described below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

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

[0053] Figure 1 A schematic diagram of the architecture of single-line transmission is shown. The backlight unit includes a plurality of backlight drivers 10 arranged in an array. Backlight drivers 10 in the same column are connected in cascade through signal lines 101, and the first backlight driver of each column is connected to the front-end controller 20 through the signal line 101. The signal line 10 needs to realize the transmission of the display data of the mini-led backlight on one hand, and needs to feed back the detection data of the mini-led backlight to the front-end controller 20 on the other hand. The detection data may include, for example, open (Open) data, short (Short) 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, i.e., time division multiplexing is required.

[0054] However, the single-wire transmission scheme causes the transmission and the read-back to be unable to be completed at the same time, and the read-back data needs to be completed in the idle time of the transmission data, which increases the required time and reduces the read-back efficiency.

[0055] Figure 2 The architecture schematic diagram of the double-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 connected in cascade through a signal line 101, and the first backlight driver of each column is connected with the front-end controller 20 through the signal line 101, and the last backlight driver of each column is connected with the front-end controller 20 through a signal line 102. In the double-wire transmission, each column of backlight drivers 10 needs a signal line 101 for data transmission, and then an additional signal line 102 is used for data feedback. The double-wire transmission can achieve data transmission and read-back at the same time, which increases the read-back efficiency.

[0056] However, the double-wire transmission scheme causes each column of backlight drivers to need a separate read-back data line, which increases the layout complexity in the mini-led lamp panel and increases the number of connector pins, resulting in increased cost.

[0057] To solve the above problems, the present application provides a data feedback system. The data integration processing unit receives the detection data of all backlight drivers and feeds back to the front-end controller, which improves the data feedback efficiency and reduces the wiring inside the lamp panel and the wiring complexity.

[0058] The technical solutions of the present application will be described in detail below with specific embodiments. 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 The structure schematic diagram of a data feedback system provided by an embodiment of the present application is shown. As shown in the figure, the data feedback system of the present embodiment can include: Figure 3

[0060] The backlight unit 50 and the data integration processing unit 30, the backlight unit 50 includes a plurality of groups of backlight drivers, each group of backlight drivers includes a plurality of backlight drivers 10 connected in cascade;

[0061] The data integration processing unit 30 is connected with 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; and so on, until the last backlight driver in each group of backlight drivers transmits the detection data of all the 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 the groups of backlight drivers to the front-end controller 20.

[0064] In the embodiment, the data integration processing unit 20 receives the detection data of all the groups of backlight drivers 10 and sends the detection data of all the 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 double-line transmission scheme, the wiring is reduced, the wiring layout inside the lamp panel is optimized, and the pin number of the front-end controller 20 is reduced.

[0065] In actual application, the backlight drivers in the same group 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. Therefore, 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; and so on, until the penultimate backlight driver transmits the detection data of 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 can include one or more of open data, short data, channel voltage (FB) data, and temperature (Tempture) data.

[0067] In actual application, the backlight unit 50 can 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] Accordingly, 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 of the column transmits the detection data of all the backlight drivers of the column to the data integration processing unit 30.

[0069] The backlight unit 50 can also include a plurality of groups of backlight drivers arranged in a zigzag pattern.

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

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

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

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

[0074] Then, the last backlight driver of each group of backlight drivers can transmit the detection data of all the backlight drivers of the same group to the data integration processing unit 30 via 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 signal line described above.

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

[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 light reflecting unit connected to the last backlight driver. The light emitting unit can include one or more mini-leds.

[0077] Figure 4 A transmission path diagram is shown, as Figure 4 As shown, taking three backlight drivers as an example, for the convenience of description, the three backlight drivers are respectively referred to as a first backlight driver, a second backlight driver and a 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 of the first backlight driver to the third backlight driver, the display data of the first backlight driver is retained, and the display data of the first backlight driver to the third backlight driver and the detection data of the first backlight driver are transmitted to the second backlight driver together. After the second backlight driver receives the display data of the first backlight driver to the third backlight driver and the detection data of the first backlight driver, the display data of the first backlight driver to the third backlight driver and the detection data of the first backlight driver and the detection data of the second backlight driver are transmitted to the third backlight driver together. After the third backlight driver receives the display data of 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 of the first backlight driver to the third backlight driver and the detection data of the first backlight driver to the third backlight driver can be transmitted to the data integration processing unit together, or only the detection data of the first backlight driver to the third backlight driver can be transmitted to the data integration processing unit.

[0079] Among them, the first backlight driver to the third backlight driver includes the first backlight driver, the second backlight driver and the third backlight driver.

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

[0081] like Figure 5 As shown, point 1 contains only the display data from the first backlight driver to the third backlight driver sent by the front-end controller; point 2 contains the display data from the first backlight driver to the third backlight driver, as well as the detection data from the first backlight driver; point 3 contains the display data from the first backlight driver to the third backlight driver, as well as the detection data from the first backlight driver to the third backlight driver. Furthermore, since the first backlight driver needs to perform related processing such as extracting its own display data after receiving the display data from the first backlight driver to the third backlight driver, there is a time difference T1 between point 1 and point 2, and two time differences 2T1 between point 2 and point 3. Similarly, there is a time difference T1 between adjacent backlight drivers. In practical applications, the time T1 is on the order of nanoseconds and does not affect the overall functionality.

[0082] In some embodiments, the data integration and processing unit can feed back the detection data of all backlight drivers to the front-end controller via a single line or multiple lines. For example, the single-line or multiple-line transmission can be determined according to the needs 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 backlight drivers to the front-end controller via multi-line transmission. It is understandable that when there are many mini-LEDs, the amount of detection data is also large; therefore, 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 backlight drivers to the front-end controller via a single line. It is understandable that when there are fewer mini-LEDs, the amount of detection data is smaller; 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 backlight drivers to the front-end controller via a single line; if the front-end controller supports multiple lines, the integrated data processing unit can transmit the detection data of all backlight drivers to the front-end controller via multiple lines.

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

[0087] In some embodiments, as shown in FIG. 3, 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. Figure 6

[0088] The power 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 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; and the data sending module 303 sends the integrated and processed detection data to the front-end controller.

[0089] As shown in FIG. 3, the data receiving module 301 can include a plurality of input terminals, each input terminal being 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 can include input terminals Input1-Input n, the last backlight driver of the first group of backlight drivers being connected to the input terminal Input1, the last backlight driver of the second group of backlight drivers being connected to the input terminal Input2, and so on, and the last backlight driver of the nth group of backlight drivers being connected to the input terminal Input n. Figure 6

[0090] ​​The data sending module 303 can include a plurality of outputs, each of which can 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 can include outputs Output1-Output n, the output Output1 outputs the first group of backlight drivers, the output Output2 outputs the second group of backlight drivers, and so on, and the output 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 as needed by the front-end controller. For example, the data processing module 302 can integrate all the received detection data of the 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 supply module and the power supply of the backlight driver can be the same to simplify the system architecture.

[0093] The data feedback system provided by the present application receives the detection data of all backlight drivers through the data integration processing unit and feeds back to the front-end controller, improves the data feedback efficiency, and reduces the wiring inside the lamp panel and 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 unit 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, etc.

[0098] For example, the front-end controller 20 can include a backlight controller (Dimmer controller), a timing controller (Timming controller, TCON), or a system on chip (System on Chip, SOC).

[0099] Figure 7 A partial structure schematic diagram of a display device is shown as Figure 7As shown, the display device includes a system chip 301, a backlight controller 302, a timing controller 303, and a backlight unit 50, the system 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, ensures that the image can be correctly displayed, 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 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 higher contrast. The system chip 301, the timing controller 303 and the backlight controller 302 work together, the system 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 liquid crystal screen to ensure correct image display; and the backlight controller 302 focuses on backlight control to improve image quality. The three together constitute the display system of the display device, providing users with a better visual experience.

[0100] Therefore, the data integration processing unit can be connected to the backlight controller, the timing controller, or the system 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 control signals for each backlight driver according to the detection data of each backlight driver, and send the control signals 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 control signals for each backlight driver according to the detection data of each backlight driver, and send the control signals of each backlight driver to the backlight controller, and the backlight controller sends the control signals 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 chip, the data integration processing unit can send the detection data of all groups of backlight drivers to the system chip, the system chip can generate control signals for each backlight driver according to the detection data of each backlight driver, and send the control signals of each backlight driver to the backlight controller, and the backlight controller can send the control signals 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, and the process is repeated 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 to realize the control of each backlight driver.

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

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

[0106] S102, sending the detection data of each group of backlight drivers to a front-end controller.

[0107] In the method, 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, and the process is repeated until the last backlight driver in each group of backlight drivers receives the detection data of other backlight drivers in the same group, wherein the other backlight drivers include all backlight drivers except the last backlight driver in the same group.

[0108] The specific implementation principles and technical effects of the data feedback method provided by the embodiment can be referred to the above-mentioned system embodiment, and will not be described here.

[0109] Figure 8 A structural schematic diagram of a data feedback device provided by an embodiment of the application is shown in FIG. 6. As shown in FIG. 6, the data feedback device 60 of the embodiment is used to realize the operation of the data integration processing unit in any of the above-mentioned method embodiments. The data feedback device 60 of the embodiment includes: Figure 8

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

[0111] 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; and 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 including all the backlight drivers except the last backlight driver in the same group.

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

[0113] The data feedback apparatus 60 provided by the embodiments of the present application can execute the above-mentioned method embodiments, and the specific implementation principles and technical effects can be referred to the above-mentioned method embodiments, which will not be described here again.

[0114] Figure 9 A hardware structure schematic diagram of an electronic device provided by the embodiments of the present application is shown. As shown in the figure, the electronic device 70 is configured to implement the operations corresponding to the data integration processing unit in any of the above-mentioned method embodiments. The electronic device 70 of the embodiments can include a memory 71, a processor 72 and a communication interface 73. Figure 9

[0115] The memory 71 is configured to store computer instructions. The memory 71 can include a high-speed random access memory (RAM), and can also include a non-volatile memory (NVM), for example, at least one disk memory, and can also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk or an optical disk, etc.

[0116] The processor 72 is configured to execute the computer instructions stored in the memory to implement the method in the above-mentioned embodiments. Details can be referred to the related description in the above-mentioned method embodiments. The processor 72 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC) and the like. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor or the like. The steps of the disclosed method can be directly embodied as hardware processor execution or executed by a combination of hardware and software modules in the processor.

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

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

[0119] The electronic device provided in the embodiment can be used to execute the method described above, and the implementation manner and technical effects are similar. The embodiment will not be described here.

[0120] The application further provides a computer readable storage medium, and the computer readable storage medium stores computer instructions. The computer instructions are executed by a processor to implement the method provided in the various embodiments.

[0121] The application further 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 the at least one processor executes the computer instructions to make the device implement the method provided in the various embodiments.

[0122] The embodiments of the application further provide a chip, which includes a memory and a processor. The memory is used to store computer instructions, and the processor is used to call and run the computer instructions from the memory, so that a device installed with the chip executes the method described in the various possible embodiments.

[0123] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, but not to limit them. Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some or all of the technical features. The modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A data feedback system for mini-LED backlighting, characterized in that, The system includes: A backlight unit and a data integration and processing unit, wherein the backlight unit includes multiple sets of backlight drivers, and each set of backlight drivers includes multiple cascaded backlight drivers; The data integration and processing unit is connected to the last backlight driver in each group of backlight drivers. The first backlight driver in each group transmits the display data of all backlight drivers in the same group, as well as the detection data of the first backlight driver, to the second backlight driver in the same group via a signal line; the second backlight driver in each group transmits the display data of all backlight drivers in the same group, as well as the detection data of the first and second backlight drivers in the same group, to the third backlight driver in the same group via the same signal line; until the last backlight driver in each group transmits the detection data of all backlight drivers in the same group to the data integration and processing unit; the data integration and processing unit receives the detection data of all backlight drivers in the same group via a first data line; 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 the detection data of all backlight drivers to the front-end controller via a multi-line connection. When the number of light-emitting units in the backlight unit is less than a preset threshold, the integrated processing unit transmits the detection data of all backlight drivers to the front-end controller via a single line.

2. The data feedback system according to claim 1, characterized in that, The data integration and processing unit feeds back the detection data of all backlight drivers to the front-end controller via the second data line.

3. The data feedback system according to claim 1 or 2, characterized in that, The data integration and processing unit includes: The system includes a data receiving module, a data processing module, a data sending module, and a 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 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 and processes 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.

4. The data feedback system according to claim 3, characterized in that, The power supply for the power module is the same as the power supply for the backlight driver.

5. The data feedback system according to claim 3, characterized in that, The detection data includes one or more of the following: open circuit data, short circuit data, channel voltage data, and temperature data.

6. A display device, characterized in that, Includes the data feedback system as described in any one of claims 1-5, 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 based on the detection data of each backlight driver.

7. The display device according to claim 6, characterized in that, The front-end controller includes: a backlight controller, a timing controller, or a system-on-a-chip.

8. A data feedback method for mini-LED backlighting, characterized in that, The backlight unit includes multiple sets of backlight drivers, each set of backlight drivers including multiple cascaded backlight drivers. The method is used for a data integration processing unit connected to the last backlight driver in each set of backlight drivers. The method includes: Receive detection data from the last backlight driver in each group of backlight drivers, which is sent by all backlight drivers in the same group; When the number of light-emitting units in the backlight unit is greater than or equal to a preset threshold, the detection data of all backlight drivers are transmitted to the front-end controller via a multi-line transmission. When the number of light-emitting units in the backlight unit is less than a preset threshold, the detection data of all backlight drivers is transmitted to the front-end controller via a single line. In this configuration, the first backlight driver in each group transmits the display data of all backlight drivers in the same group, as well as the detection data of the first backlight driver, to the second backlight driver in the same group via a signal line. The second backlight driver in each group transmits the display data of all backlight drivers in the same group, as well as the detection data of the first and second backlight drivers in the same group, to the third backlight driver in the same group via the same signal line. This continues until the last backlight driver in each group receives the detection data of the other backlight drivers in the same group, which includes all backlight drivers except the last backlight driver in the same group. The data integration processing unit receives the detection data of all backlight drivers in the same group via a first data line.

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