Regional dimming method and display device

Abstract

The invention discloses a regional dimming method and a display device.The display device comprises a main board, a driving board and a lamp panel, a system-on-chip is arranged on the main board, first regional dimming data is stored on the main board, second regional dimming data is stored on the driving board, and a plurality of lamp beads are arranged on the lamp panel; the method comprises the following steps: acquiring second area dimming data from a driving board; performing verification processing on the first area dimming data based on the second area dimming data to obtain verification result information; and driving a plurality of lamp beads to display based on the verification result information. The regional dimming function of the display device can be automatically adapted, and manpower cost and material cost caused by manual adjustment of regional dimming data are avoided.

Description

Technical Field

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

[0002] Currently, many display devices have local dimming functions, and the local dimming parameter settings of display devices of different sizes and models are different. Existing display devices require dedicated personnel to manually change and debug local dimming data according to different configuration files, which consumes manpower and material resources. Summary of the invention

[0003] The embodiments of the present application provide a regional dimming method and a display device, which can automatically adapt the regional dimming function of the display device to avoid the manpower and material costs caused by manual adjustment of regional dimming data.

[0004] The technical solution adopted by the present invention to solve the problem is as follows:

[0005] In a first aspect, the present application provides a regional dimming method, which is applied to a system-level chip of a display device, wherein the display device includes a main board, a driving board, and a lamp board, the system-level chip is arranged on the main board, the main board stores first regional dimming data, the driving board stores second regional dimming data, and a plurality of lamp beads are arranged on the lamp board, the method includes:

[0006] Acquire the second zone dimming data from the driver board;

[0007] Performing verification processing on the first area dimming data based on the second area dimming data to obtain verification result information;

[0008] Based on the verification result information, multiple lamp beads are driven for display.

[0009] In some embodiments of the present application, the first area dimming data is verified based on the second area dimming data to obtain verification result information, including:

[0010] Acquire a first check code from the first area dimming data and acquire a second check code from the second area dimming data;

[0011] The first verification code and the second verification code are matched, and if the first verification code matches the second verification code, the verification result information is determined to be the first result information; the first result information indicates that the first area dimming data verification has passed;

[0012] If the first verification code does not match the second verification code, it is determined that the verification result information is the second result information; the second result information indicates that the first area dimming data verification has failed.

[0013] In some embodiments of the present application, the display device further includes a microcontroller and a driver IC, and based on the verification result information, drives a plurality of lamp beads to display, including:

[0014] If the verification result information is the first result information, the first area dimming data is sent to the microcontroller; the first result information indicates that the first area dimming data verification has passed;

[0015] The first area dimming data is converted and processed by a microcontroller, and the converted first area dimming data is sent to a driver IC so as to drive a plurality of lamp beads for display through the driver IC.

[0016] In some embodiments of the present application, based on the verification result information, driving multiple lamp beads for display also includes:

[0017] If the verification result information is the second result information, the first area dimming data is updated based on the second area dimming data, and the updated first area dimming data is sent to the microcontroller; the second result information indicates that the first area dimming data verification has failed;

[0018] The updated first-region dimming data is converted and processed by the microcontroller, and the converted first-region dimming data is sent to the driver IC so as to drive a plurality of lamp beads for display through the driver IC.

[0019] In some embodiments of the present application, the driving board also stores light type parameters, and the method further includes:

[0020] Get light type parameters from the driver board;

[0021] Generating light type data corresponding to the display device according to the light type parameters;

[0022] Based on the light pattern data, a light pattern file corresponding to the display device is generated.

[0023] In some embodiments of the present application, the display device further includes a timing control board and a display panel, the timing control board stores the first screen parameter data, the main board also stores the second screen parameter data, and the method further includes:

[0024] Get the first screen parameter data from the timing control board;

[0025] Matching the first screen parameter data with the second screen parameter data;

[0026] If the first screen parameter data and the second screen parameter data match, a display signal is output to the timing control board according to the second screen parameter data, so as to output the display signal to the display panel through the timing control board.

[0027] In some embodiments of the present application, after matching the first screen parameter data with the second screen parameter data, the method further includes:

[0028] If the first screen parameter data and the second screen parameter data do not match, the second screen parameter data is updated according to the first screen parameter data;

[0029] A display signal is output to the timing control board according to the updated second screen parameter data, so that the display signal is output to the display panel through the timing control board.

[0030] In a second aspect, an embodiment of the present invention further provides a display device, the display device includes a main board, a driving board and a lamp board, a system-level chip is arranged on the main board, a first area dimming data is stored on the main board, a second area dimming data is stored on the driving board, a plurality of lamp beads are arranged on the lamp board, and the system-level chip is used for:

[0031] Acquire the second zone dimming data from the driver board;

[0032] Performing verification processing on the first area dimming data based on the second area dimming data to obtain verification result information;

[0033] Based on the verification result information, multiple lamp beads are driven for display.

[0034] In some embodiments of the present application, the display device further includes a microcontroller and a driver IC;

[0035] The system-level chip is also used to send the first area dimming data to the microcontroller if the verification result information is the first result information; the first result information indicates that the first area dimming data verification has passed;

[0036] The microcontroller is used to convert and process the first area dimming data, and send the converted first area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC.

[0037] In some embodiments of the present application, the system-level chip is further used to update the first regional dimming data based on the second regional dimming data if the verification result information is the second result information, and send the updated first regional dimming data to the microcontroller; the second result information indicates that the first regional dimming data verification has failed;

[0038] The microcontroller is also used to convert the updated first-area dimming data and send the converted first-area dimming data to the driver IC so as to drive multiple lamp beads for display through the driver IC.

[0039] The beneficial effects of the present invention are as follows: the second area dimming data is obtained from the driver board through the system-level chip, and the first area dimming data is verified and processed based on the second area dimming data to obtain verification result information, and multiple lamp beads are driven for display based on the verification result information. The regional dimming function of the display device can be automatically adapted, avoiding the manpower and material costs caused by manual adjustment of the regional dimming data. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the flow of the regional dimming method provided by the present invention;

[0041] Figure 2 A schematic diagram of an embodiment of a regional dimming debugging interface provided by the present invention;

[0042] Figure 3 A schematic diagram of the structure of an embodiment of a display device provided by the present invention;

[0043] Figure 4 A signal trend block diagram of the display device provided by the present invention;

[0044] Figure 5 This is a schematic structural diagram of another embodiment of the display device provided by the present invention.

[0045] Reference numerals:

[0046] 210, main board; 220, system-level chip; 230, first memory; 240, signal conversion module; 250, debugging socket; 260, external interface; 270, crystal oscillator; 280, fifth memory; 290, power supply module; 310, timing control board; 320, third memory; 330, first circuit board; 410, cover chip; 510, display panel; 610, second circuit board; 620, fourth memory. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0048] In the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0049] At present, many display devices (such as TVs, computer monitors, projectors, electronic whiteboards, virtual reality head-mounted displays, etc.) have local dimming functions, and the local dimming parameter settings of display devices of different sizes and models are different. Existing display devices require dedicated personnel to manually change and debug local dimming data according to different configuration files, which consumes manpower and material resources.

[0050] Therefore, in order to solve the above problems, the present application proposes a regional dimming method and a display device. The present application is further described below in conjunction with the accompanying drawings and implementation examples.

[0051] See also Figure 1 , Figure 1 This is a flow chart of a regional dimming method provided in an embodiment of the present application. This embodiment provides a regional dimming method, which is applied to a system-level chip of a display device. The regional dimming method includes:

[0052] S110, obtaining second area dimming data from the driving board.

[0053] In some embodiments, the display device includes a main board, a driver board and a light board. A system-on-a-chip (SOC) is arranged on the main board. The main board stores first-area dimming data. The driver board stores second-area dimming data. A plurality of lamp beads are arranged on the light board. The system-on-a-chip is used to obtain the second-area dimming data from the driver board.

[0054] In some embodiments, a first memory is provided on the main board, and the first area dimming data is stored in the first memory. A second memory is provided on the driver board, and the second area dimming data is stored in the second memory. Optionally, the first memory may adopt any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. The second memory may adopt any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. For example, the first memory may adopt a memory chip Flash IC, and the second memory may adopt an electrically erasable programmable read only memory (Electrically Erasable Programmable read only memory, EEPROM).

[0055] Furthermore, the first regional dimming data and the second regional dimming data both include one or more of the number of row partitions, the number of column partitions, the transmission rate, the data format, the number of Serial Peripheral Interface (SPI) channels, the BFI lighting time, the conditions for entering overdrive, whether to turn on light type compensation, the full white current, the peak current, the overdrive current, and whether there are light type parameters. The first regional dimming data and the second driving dimming data can be the same regional dimming data or different regional dimming data. For example, if a 55-inch TV mainboard is replaced with a 55-inch TV, the first regional dimming data and the second regional dimming data are the same due to the same model; for another example, if a 65-inch TV mainboard is replaced with a 55-inch TV, the first regional dimming data and the second regional dimming data are different due to the different models.

[0056] In an embodiment of the present application, when the display device is normally connected and powered on for the first time, the system-level chip on the mainboard can obtain the second area dimming data from the driver board, so as to subsequently verify and process the first area dimming data based on the second area dimming data.

[0057] S120: Verify the first area dimming data based on the second area dimming data to obtain verification result information.

[0058] In an embodiment of the present application, the verification result information is used to indicate whether the first-area dimming data has passed the verification. Optionally, the verification result information includes first result information and second result information, the first result information indicates that the first-area dimming data has passed the verification, and the second result information indicates that the first-area dimming data has not passed the verification.

[0059] In some embodiments, the first area dimming data is verified based on the second area dimming data, and the step of obtaining the verification result information specifically includes: matching the second area dimming data with the first area dimming data; if the second area dimming data matches the first area dimming data, determining that the verification result information is the first result information; if the second area dimming data does not match the first area dimming data, determining that the verification result information is the second result information.

[0060] Optionally, the second area dimming data and the first area dimming data match each other by being exactly the same, or the second area dimming data and the first area dimming data match each other by being more similar than a first similarity threshold, which is not limited in this embodiment.

[0061] In some other embodiments, the first area dimming data includes a first check code, and the second area dimming data includes a second check code. The above-mentioned step of verifying the first area dimming data based on the second area dimming data to obtain the verification result information specifically includes: obtaining the first check code from the first area dimming data and obtaining the second check code from the second area dimming data; matching the first check code and the second check code, and if the first check code matches the second check code, determining that the verification result information is the first result information; if the first check code does not match the second check code, determining that the verification result information is the second result information. This embodiment verifies the first area dimming data based on the first check code and the second check code, and there is no need to match all the first area dimming data and the second area dimming data, which can improve the verification speed of the first area dimming data.

[0062] Optionally, the first check code and the second check code match in that the first check code and the second check code are completely identical, or the first check code and the second check code match in that the similarity between the first check code and the second check code is greater than a second similarity threshold, which is not limited in this embodiment.

[0063] S130: Based on the verification result information, drive multiple lamp beads for display.

[0064] In the embodiment of the present application, multiple lamp beads are driven for display based on the verification result information, and the regional dimming function of the display device can be automatically adapted to avoid the manpower and material costs caused by manual adjustment of the regional dimming data.

[0065] In some embodiments, the display device also includes a microcontroller unit (MCU) and a driver IC. The above-mentioned step of driving multiple lamp beads for display based on the verification result information specifically includes: if the verification result information is the first result information, sending the first area dimming data to the microcontroller; converting and processing the first area dimming data by the microcontroller, and sending the converted first area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC.

[0066] In the embodiment of the present application, the first result information indicates that the first-area dimming data verification has passed. If the verification result information is the first result information, it means that the first-area dimming data and the second-area dimming data are compatible. At this time, the system-level chip can directly send the first-area dimming data to the microcontroller. After receiving the first-area dimming data, the microcontroller converts the first-area dimming data and sends the converted first-area dimming data to the driver IC, thereby driving multiple lamp beads for display through the driver IC.

[0067] In other embodiments, the above-mentioned step of driving multiple lamp beads for display based on the verification result information specifically also includes: if the verification result information is the second result information, updating the first area dimming data based on the second area dimming data, and sending the updated first area dimming data to the microcontroller; converting and processing the updated first area dimming data by the microcontroller, and sending the converted first area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC.

[0068] In an embodiment of the present application, the second result information indicates that the first-area dimming data verification has failed. If the verification result information is the second result information, indicating that the first-area dimming data and the second-area dimming data are not compatible, the system-level chip can update the first-area dimming data based on the second-area dimming data to update the first-area dimming data to regional dimming data that is compatible with the second-area dimming data.

[0069] Furthermore, after the system-level chip updates the first-area dimming data based on the second-area dimming data, the updated first-area dimming data is sent to the microcontroller. After receiving the updated first-area dimming data, the microcontroller converts the updated first-area dimming data and sends the converted first-area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC, thereby realizing regional dimming of the display device.

[0070] In some embodiments, the display device further includes an interface display unit and a data update unit. The interface display unit is used to display a local dimming debugging interface. Optionally, the local dimming debugging interface is as follows: Figure 2 As shown, the regional dimming debugging interface includes row partitioning, column partitioning, transmission rate, data format, various currents, BFI lighting time, overdrive conditions, whether compensation is turned on, whether there are light type parameters and other regional dimming data. Users can fill in, check, modify and perform other operations on the regional dimming debugging interface.

[0071] Furthermore, a data update button (i.e. Figure 2 The user can send a data update instruction to the data update unit through the data update button. After receiving the data update instruction, the data update unit updates the local dimming data modified by the user to the driver board.

[0072] In some embodiments, the driver board also stores light type parameters, which include any one or more data of the peak current of the lamp beads, the optical characteristics of the lamp beads, the characteristics of the lens, the position information of the lamp beads, the OD value, and the transmittance of the screen. The above-mentioned regional dimming method also includes: obtaining light type parameters from the driver board; generating light type data corresponding to the display device according to the light type parameters; and generating a light type file corresponding to the display device based on the light type data. This embodiment generates light type data corresponding to the display device according to the light type parameters, and generates a light type file corresponding to the display device based on the light type data, which can automatically generate an accurate light type file, avoiding the problem of incomplete matching between the bottom part of the lamp beads and the generated digital light type due to shooting.

[0073] Optionally, when generating light type data corresponding to the display device according to the light type parameters, the light type data corresponding to the display device can be generated according to the light type parameters and the corresponding relationship between preset light type parameters and light type data, or preset simulation software can be called to generate lamp bead attenuation data according to the light type parameters, and then the light type data corresponding to the display device is generated according to the lamp bead attenuation data, which is not limited to this in this embodiment.

[0074] In some embodiments, when generating a light type file corresponding to the display device based on the light type data, a tool provided by the SOC manufacturer may be used to generate a light type file corresponding to the display device based on the light type data. For example, the tool provided by the SOC manufacturer is used to generate a corresponding .bin file based on the light type data.

[0075] In some embodiments, the display device further includes a timing control board and a display panel, the timing control board stores first screen parameter data, and the main board also stores second screen parameter data, and the above-mentioned regional dimming method further includes: obtaining the first screen parameter data from the timing control board; matching the first screen parameter data with the second screen parameter data; if the first screen parameter data and the second screen parameter data match, outputting a display signal to the timing control board according to the second screen parameter data, so as to output the display signal to the display panel through the timing control board. This embodiment matches the first screen parameter data with the second screen parameter data, and outputs a display signal to the timing control board based on the matching result of the first screen parameter data and the second screen parameter data, so as to realize automatic screen matching of the display device.

[0076] In some embodiments, a third memory is provided on the timing control board, and the first screen parameter data is stored in the third memory. Optionally, the third memory may be any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), and a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. For example, the third memory may be a memory chip Flash IC.

[0077] In some embodiments, after matching the first screen parameter data with the second screen parameter data, the method further includes: if the first screen parameter data and the second screen parameter data do not match, updating the second screen parameter data according to the first screen parameter data; outputting a display signal to the timing control board according to the updated second screen parameter data, so as to output the display signal to the display panel through the timing control board.

[0078] In some embodiments, the first screen parameter data and the second screen parameter data both include any one or more of horizontal effective pixels, vertical effective pixels, horizontal blanking, vertical blanking, clock frequency, RGB color bit number, horizontal and vertical synchronization signal width and delay, interface format, and timing. The first screen parameter data and the second screen parameter data can be the same data or different data.

[0079] Optionally, the first screen parameter data and the second screen parameter data may match if the first screen parameter data and the second screen parameter data are exactly the same, or the first screen parameter data and the second screen parameter data may match if the degree of similarity between the first screen parameter data and the second screen parameter data is greater than a third similarity threshold, which is not limited in this embodiment.

[0080] In order to better implement the regional dimming method in the embodiment of the present application, on the basis of the regional dimming method, a display device is also provided in the embodiment of the present application. The display device can be any device with display function such as a TV, a computer monitor, a projector, an electronic whiteboard, a virtual reality head-mounted display, etc. Figures 3 to 5As shown, the display device includes: a main board 210, a driving board and a lamp board, a system-level chip 220 is arranged on the main board 210, first-area dimming data is stored on the main board 210, second-area dimming data is stored on the driving board, and a plurality of lamp beads are arranged on the lamp board, and the system-level chip 220 is used for: obtaining the second-area dimming data from the driving board; verifying the first-area dimming data based on the second-area dimming data to obtain verification result information; and driving the plurality of lamp beads for display based on the verification result information.

[0081] In some embodiments, a first memory 230 is provided on the mainboard 210, and the first area dimming data is stored in the first memory 230, and a second memory is provided on the driver board, and the second area dimming data is stored in the second memory. Optionally, the first memory 230 can adopt any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. The second memory can adopt any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. For example, the first memory 230 can adopt a memory chip Flash IC, and the second memory can adopt an electrically erasable programmable read only memory (EEPROM).

[0082] Furthermore, the first regional dimming data and the second regional dimming data both include one or more of the number of row partitions, the number of column partitions, the transmission rate, the data format, the number of Serial Peripheral Interface (SPI) channels, the BFI lighting time, the conditions for entering overdrive, whether to turn on light type compensation, the full white current, the peak current, the overdrive current, and whether there are light type parameters. The first regional dimming data and the second driving dimming data can be the same regional dimming data or different regional dimming data. For example, if a 55-inch TV mainboard is replaced with a 55-inch TV, the first regional dimming data and the second regional dimming data are the same due to the same model; for another example, if a 65-inch TV mainboard is replaced with a 55-inch TV, the first regional dimming data and the second regional dimming data are different due to the different models.

[0083] In an embodiment of the present application, the verification result information is used to indicate whether the first-area dimming data has passed the verification. Optionally, the verification result information includes first result information and second result information, the first result information indicates that the first-area dimming data has passed the verification, and the second result information indicates that the first-area dimming data has not passed the verification.

[0084] In some embodiments, the system-level chip 220 is specifically used to: match the second area dimming data with the first area dimming data; if the second area dimming data matches the first area dimming data, determine that the verification result information is the first result information; if the second area dimming data does not match the first area dimming data, determine that the verification result information is the second result information.

[0085] Optionally, the second area dimming data and the first area dimming data match each other by being exactly the same, or the second area dimming data and the first area dimming data match each other by being more similar than a first similarity threshold, which is not limited in this embodiment.

[0086] In some other embodiments, the first area dimming data includes a first check code, and the second area dimming data includes a second check code. The system-level chip 220 is specifically used to: obtain the first check code from the first area dimming data and obtain the second check code from the second area dimming data; match the first check code and the second check code, and if the first check code matches the second check code, determine that the check result information is the first result information; if the first check code does not match the second check code, determine that the check result information is the second result information. This embodiment verifies the first area dimming data based on the first check code and the second check code, and does not need to match all the first area dimming data and the second area dimming data, which can improve the verification speed of the first area dimming data.

[0087] Optionally, the first check code and the second check code match in that the first check code and the second check code are completely identical, or the first check code and the second check code match in that the similarity between the first check code and the second check code is greater than a second similarity threshold, which is not limited in this embodiment.

[0088] In some embodiments, the display device also includes a microcontroller unit (MCU) and a driver IC. The system-level chip 220 is also used to send the first area dimming data to the microcontroller if the verification result information is the first result information; the first result information indicates that the first area dimming data verification has passed; the microcontroller is used to convert the first area dimming data, and send the converted first area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC.

[0089] In some embodiments, the system-level chip 220 is also used to update the first-area dimming data based on the second-area dimming data if the verification result information is the second result information, and send the updated first-area dimming data to the microcontroller; the second result information indicates that the first-area dimming data verification has failed; the microcontroller is also used to convert the updated first-area dimming data, and send the converted first-area dimming data to the driver IC, so as to drive multiple lamp beads for display through the driver IC.

[0090] In some embodiments, the display device also includes an interface display unit and a data update unit, the interface display unit is used to display a regional dimming debugging interface, and the data update unit is used to receive data update instructions and update the user-modified regional dimming data to the driver board based on the data update instructions.

[0091] Optionally, the local dimming debugging interface is as follows Figure 2 As shown, the regional dimming debugging interface includes row partitioning, column partitioning, transmission rate, data format, various currents, BFI lighting time, overdrive conditions, whether compensation is turned on, whether there are light type parameters and other regional dimming data. Users can fill in, check, modify and perform other operations on the regional dimming debugging interface.

[0092] Furthermore, a data update button (i.e. Figure 2 The user can send a data update instruction to the data update unit through the data update button. After receiving the data update instruction, the data update unit updates the local dimming data modified by the user to the driver board.

[0093] In some embodiments, the driver board also stores light type parameters, which include any one or more data of the peak current of the lamp beads, the optical characteristics of the lamp beads, the characteristics of the lens, the position information of the lamp beads, the OD value, and the transmittance of the screen. The system-level chip 220 is also used to: obtain light type parameters from the driver board; generate light type data corresponding to the display device according to the light type parameters; and generate a light type file corresponding to the display device based on the light type data. This embodiment generates light type data corresponding to the display device according to the light type parameters, and generates a light type file corresponding to the display device based on the light type data, which can automatically generate an accurate light type file, avoiding the problem of incomplete matching between the bottom part of the lamp beads and the generated digital light type due to shooting.

[0094] In some embodiments, reference Figure 3 and Figure 4As shown, the display device further includes a timing controller (TCON) board 310 and a display panel 510. The timing controller board 310 stores first screen parameter data, and the main board 210 also stores second screen parameter data. The system-level chip 220 is also used to: obtain the first screen parameter data from the timing controller board 310; match the first screen parameter data with the second screen parameter data; if the first screen parameter data and the second screen parameter data match, output a display signal to the timing controller board 310 according to the second screen parameter data, so as to output the display signal to the display panel 510 through the timing controller board 310. In this embodiment, the first screen parameter data is matched with the second screen parameter data, and a display signal is output to the timing controller board 310 based on the matching result of the first screen parameter data and the second screen parameter data, so as to realize automatic screen matching of the display device.

[0095] In some embodiments, reference Figure 4 As shown, the timing control board 310 is provided with a third memory 320, and the first screen parameter data is stored in the third memory 320. Optionally, the third memory 320 can be any one or more of a memory chip Flash IC, a random access memory (Random Access Memory, RAM), and a read-only memory (Read-Only Memory, ROM), etc., which is not limited in this embodiment. For example, the third memory 320 can be a memory chip Flash IC.

[0096] In some embodiments, the system-level chip 220 is also used to: if the first screen parameter data and the second screen parameter data do not match, update the second screen parameter data according to the first screen parameter data; output a display signal to the timing control board 310 according to the updated second screen parameter data, so as to output the display signal to the display panel 510 through the timing control board 310.

[0097] In some embodiments, the first screen parameter data and the second screen parameter data both include any one or more of horizontal effective pixels, vertical effective pixels, horizontal blanking, vertical blanking, clock frequency, RGB color bit number, horizontal and vertical synchronization signal width and delay, interface format, and timing. The first screen parameter data and the second screen parameter data can be the same data or different data.

[0098] Optionally, the first screen parameter data and the second screen parameter data may match if the first screen parameter data and the second screen parameter data are exactly the same, or the first screen parameter data and the second screen parameter data may match if the degree of similarity between the first screen parameter data and the second screen parameter data is greater than a third similarity threshold, which is not limited in this embodiment.

[0099] In some embodiments, continue to refer to Figure 3As shown, the display device also includes a first circuit board 330 and a second circuit board 610. The timing control board 310 is arranged on the first circuit board 330. The first circuit board 330 can adopt a control board (Circuit Board, CB board), and the second circuit board 610 can adopt a horizontal circuit board (x-board, XB board).

[0100] In some embodiments, reference Figure 4 As shown, the display device may further include a signal conversion module 240, which is disposed on the mainboard 210, and the signal conversion module 240 is respectively connected to the third memory 320 and the system-level chip 220, and the signal conversion module 240 is used to obtain the first screen parameter data from the third memory 320, perform data conversion on the first screen parameter data, and send the converted first screen parameter data to the system-level chip 220. For example, the signal conversion module 240 may be a signal conversion IC for converting an SPI signal into an IIC signal.

[0101] In some other embodiments, the function of the timing controller (TCON) of the display device is integrated on the SOC, that is, the display device is a display device without a timing controller (TCON) board (that is, a TCONless display device). Figure 5 As shown, the display device includes: a mainboard 210, a second circuit board 610 and a display panel 510, and the system-level chip 220 is arranged on the mainboard 210. Among them, the second circuit board 610 is connected to the system-level chip 220 through a hardware interface, and a fourth memory 620 is arranged on the second circuit board 610. The fourth memory 620 is used to store the first screen parameter data, and the system-level chip 220 is used to: obtain the first screen parameter data from the fourth memory 620; match the first screen parameter data with the second screen parameter data; if the first screen parameter data and the second screen parameter data match, output a display signal to the display panel 510 according to the second screen parameter data; if the first screen parameter data and the second screen parameter data do not match, update the second screen parameter data according to the first screen parameter data, and output a display signal to the display panel 510 according to the updated second screen parameter data. Such a setting can also realize automatic screen matching of the display device. For example, the system-level chip 220 obtains the first screen parameter data from the fourth memory 620 through the SPI protocol.

[0102] In some embodiments, the fourth memory 620 may be one or more of a memory chip Flash IC, a random access memory (RAM), a read-only memory (ROM), etc., which is not limited in this embodiment. For example, the fourth memory 620 may be a memory chip Flash IC.

[0103] In some embodiments, the second circuit board 610 includes a plurality of sub-boards, the hardware interface includes a plurality of interfaces corresponding to the plurality of sub-boards, each sub-board is connected to the system-level chip 220 through its corresponding interface, and the fourth memory 620 is disposed on any sub-board. Figure 5 As shown, the second circuit board 610 adopts a two-stage horizontal circuit board (x-board, XB board), that is, the second circuit board 610 includes two sub-boards, the hardware interface includes hardware interfaces corresponding to the two sub-boards, and the fourth memory 620 is arranged on one of the sub-boards. Of course, the second circuit board 610 in the embodiment of the present application can also include three sub-boards, four sub-boards or more sub-boards, which is not limited in this embodiment.

[0104] In some embodiments, continue to refer to Figure 4 As shown, the display device also includes a debug socket 250, and the debug socket 250 is arranged on the main board 210. The system-level chip 220 is also used for: if the first screen parameter data and the second screen parameter data do not match, the difference data between the first screen parameter data and the second screen parameter data is output through the debug socket 250, so that engineers can easily obtain the difference data through the serial port or the IIC adapter board, and check and modify the difference data.

[0105] In some embodiments, continue to refer to Figure 3 to Figure 5 As shown, the display device further includes: a chip-on-film 410 , the second circuit board 610 is connected to the display panel 510 via the chip-on-film 410 , and the display signal output by the system-level chip 220 can be transmitted to the display panel 510 via the chip-on-film 410 .

[0106] In some embodiments, continue to refer to Figure 4 As shown, the display device further includes an external interface 260, which is disposed on the mainboard 210. The external interface 260 may be any one or more of an HDMI interface, a USB interface, an RJ45 interface, a Tuner interface, and an AV interface.

[0107] In some embodiments, continue to refer to Figure 4 As shown, the display device further includes a crystal oscillator 270 , which is disposed on the mainboard 210 . The crystal oscillator 270 can generate an accurate clock signal to ensure stable operation and synchronous operation of the display device.

[0108] Optionally, continue to refer to Figure 4As shown, the display device also includes a fifth memory 280, which is arranged on the main board 210. The fifth memory 280 can use DDR3. The main decoding chip of the display device needs to digitally process various input signals. A large amount of data will be generated during the processing and needs to be stored and called. The fifth memory 280 is the data storage and exchange center of the main decoding chip.

[0109] In some embodiments, continue to refer to Figure 4 As shown, the display device further includes a power supply module 290, which is used to provide stable voltage and current to various components of the display device to ensure the normal operation of the display device.

[0110] In summary, the present invention provides a regional dimming method and a display device, which obtains the second regional dimming data from the driver board through the system-level chip, and verifies the first regional dimming data based on the second regional dimming data to obtain verification result information, and drives multiple lamp beads for display based on the verification result information. The regional dimming function of the display device can be automatically adapted to avoid the manpower and material costs caused by manual adjustment of the regional dimming data. Furthermore, the light type data corresponding to the display device is generated according to the light type parameters, and the light type file corresponding to the display device is generated based on the light type data. It can automatically generate an accurate light type file to avoid the problem of incomplete matching between the bottom part of the lamp beads and the generated digital light type due to shooting. Furthermore, the first screen parameter data is matched with the second screen parameter data, and a display signal is output to the timing control board based on the matching result of the first screen parameter data and the second screen parameter data, so as to realize automatic screen matching of the display device.

[0111] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0112] The regional dimming method and display device provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A regional dimming method, characterized in that: A system-level chip applied to a display device, the display device comprising a main board, a driving board and a lamp board, the system-level chip being arranged on the main board, the main board storing first area dimming data, the driving board storing second area dimming data, the lamp board being arranged with a plurality of lamp beads, the method comprising: Acquire the second area dimming data from the driving board; Performing verification processing on the first regional dimming data based on the second regional dimming data to obtain verification result information; Based on the verification result information, the plurality of lamp beads are driven to perform display.

2. The local dimming method according to claim 1, characterized in that: The verifying the first regional dimming data based on the second regional dimming data to obtain verification result information includes: Acquire a first check code from the first-region dimming data and acquire a second check code from the second-region dimming data; Matching the first verification code and the second verification code, if the first verification code matches the second verification code, determining that the verification result information is first result information; the first result information indicates that the first area dimming data verification has passed; If the first verification code does not match the second verification code, it is determined that the verification result information is the second result information; the second result information indicates that the first area dimming data verification has failed.

3. The local dimming method according to claim 1, characterized in that: The display device further includes a microcontroller and a driver IC, and based on the verification result information, driving the plurality of lamp beads to display includes: If the verification result information is the first result information, the first area dimming data is sent to the microcontroller; the first result information indicates that the first area dimming data has passed the verification; The first regional dimming data is converted and processed by the microcontroller, and the converted first regional dimming data is sent to the driver IC, so that the driver IC drives the plurality of lamp beads for display.

4. The local dimming method according to claim 3, characterized in that: Based on the verification result information, driving the plurality of lamp beads to display further includes: If the verification result information is the second result information, the first regional dimming data is updated based on the second regional dimming data, and the updated first regional dimming data is sent to the microcontroller; the second result information indicates that the first regional dimming data verification has failed; The updated first-region dimming data is converted and processed by the microcontroller, and the converted first-region dimming data is sent to the driver IC, so that the driver IC drives the plurality of lamp beads for display.

5. The local dimming method according to any one of claims 1 to 4, characterized in that: The driving board also stores light type parameters, and the method further includes: Acquire the light type parameters from the driving board; Generating light type data corresponding to the display device according to the light type parameters; Based on the light type data, a light type file corresponding to the display device is generated.

6. The local dimming method according to any one of claims 1 to 4, characterized in that: The display device further includes a timing control board and a display panel, the timing control board stores first screen parameter data, the main board also stores second screen parameter data, and the method further includes: Acquire the first screen parameter data from the timing control board; Matching the first screen parameter data with the second screen parameter data; If the first screen parameter data matches the second screen parameter data, a display signal is output to the timing control board according to the second screen parameter data, so that the display signal is output to the display panel through the timing control board.

7. The local dimming method according to claim 6, characterized in that: After matching the first screen parameter data with the second screen parameter data, the method further includes: If the first screen parameter data and the second screen parameter data do not match, updating the second screen parameter data according to the first screen parameter data; A display signal is output to the timing control board according to the updated second screen parameter data, so that the display signal is output to the display panel through the timing control board.

8. A display device, characterized in that: The display device includes a main board, a driving board and a lamp board, the main board is provided with a system-level chip, the main board stores first area dimming data, the driving board stores second area dimming data, the lamp board is provided with a plurality of lamp beads, and the system-level chip is used for: Acquire the second area dimming data from the driving board; Performing verification processing on the first regional dimming data based on the second regional dimming data to obtain verification result information; Based on the verification result information, the plurality of lamp beads are driven to perform display.

9. The display device according to claim 8, characterized in that: The display device also includes a microcontroller and a driver IC; The system-level chip is further configured to send the first regional dimming data to the microcontroller if the verification result information is the first result information; The first result information indicates that the first area dimming data verification has passed; The microcontroller is used to convert the first-region dimming data and send the converted first-region dimming data to the driver IC so as to drive the plurality of lamp beads for display through the driver IC.

10. The display device according to claim 9, characterized in that: The system-level chip is further configured to update the first regional dimming data based on the second regional dimming data if the verification result information is the second result information, and send the updated first regional dimming data to the microcontroller; The second result information indicates that the first area dimming data verification fails; The microcontroller is also used to convert the updated first-region dimming data and send the converted first-region dimming data to the driver IC so as to drive the plurality of lamp beads for display through the driver IC.

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