CN116935785A

CN116935785A - Control method and display method of display screen and related components

Info

Publication number: CN116935785A
Application number: CN202311000086.3A
Authority: CN
Inventors: 吕润发; 韦桂锋
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2023-10-24

Abstract

The application is suitable for the technical field of display screens, and provides a control method and a display method of a display screen and related components. The display screen comprises at least one display module, the control equipment is connected with a plurality of display modules in parallel or connected with a plurality of display modules in cascade, and each display module comprises a driving chip and a pixel circuit; the control method of the display screen comprises the following steps: acquiring image data to be displayed; converting the image data into data to be output required by a driving chip; the data to be output are converted into data signals and control signals, the data signals and the control signals are transmitted to the driving chip to drive each display module to display, the data signals are used for indicating the display units driven by the pixel circuits to display, and the control signals are used for indicating the driving chip to control line feed of the display units and indicate the display units to display. The embodiment of the application can be adapted to the display module adopting an active driving control mode.

Description

Control method and display method of display screen and related components

Technical Field

The application belongs to the technical field of display screens, and particularly relates to a control method and a display method of a display screen and related components.

Background

With the development of LED (Light-Emitting Diode) display screens toward small-pitch and high-resolution, applications of novel LED display screens such as Micro LED (Micro Light-Emitting Diode), OLED (Organic Light-Emitting Diode) and Mini-LED are increasing. In the conventional LED display control manner, the control device needs to use multiple single-ended signals to control the driving chip and the decoding chip of the display module respectively, however, the display module of the novel LED display often adopts an Active Matrix (AM) driving control manner, and the conventional control manner using multiple single-ended signals is difficult to adapt to such display module.

Disclosure of Invention

The embodiment of the application provides a control method and a display method of a display screen and related components, which can solve the problem that a traditional control mode using various single-ended signals is difficult to adapt to a display module of an AM driving control mode in the related technology.

An embodiment of the present application provides a control method for a display screen, which is applied to a control device, where the control device is connected with a plurality of display modules, and each display module includes a driving chip and a pixel circuit; the control method of the display screen comprises the following steps: acquiring image data to be displayed; converting the image data into data to be output required by the driving chip; the data to be output are converted into data signals and control signals, the data signals and the control signals are transmitted to the driving chip to drive each display module to display, the data signals are used for indicating the display units driven by the pixel circuits to display, and the control signals are used for indicating the driving chip to control line feed of the display units driven by the pixel circuits and indicate the display units to display.

The second aspect of the embodiment of the application provides an output interface, which is characterized in that the output interface is arranged on a control device and is connected with a driving chip of a display module, and the display module comprises the driving chip and a pixel circuit; the output interface comprises a first pin for outputting a data signal and a second pin for outputting a control signal, wherein the data signal is used for indicating a display unit driven by the pixel circuit to display, and the control signal is used for indicating the driving chip to perform line feed control on the display unit driven by the pixel circuit and indicating the display unit to display.

A third aspect of the embodiment of the present application provides a display method, applied to a display screen, where the display screen includes a plurality of display modules, each display module includes a driving chip and a pixel circuit, and the display modules are connected with a control device; the display method comprises the following steps: receiving a data signal and a control signal output by the control device according to the control method of the display screen of the first aspect; and performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

The control device of the display screen provided in the fourth aspect of the embodiment of the application is configured in a control device, the control device is connected with a plurality of display modules, and each display module comprises a driving chip and a pixel circuit; the control device of the display screen comprises: an image acquisition unit configured to acquire image data to be displayed; the image processing unit is used for converting the image data into data to be output required by the driving chip; the output control unit is used for converting the data to be output into a data signal and a control signal, transmitting the data signal and the control signal to the driving chip so as to drive each display module to display, wherein the data signal is used for indicating the display unit driven by the pixel circuit to display, and the control signal is used for indicating the driving chip to control the display unit driven by the pixel circuit to feed lines and indicate the display unit to display.

The display device provided in the fifth aspect of the embodiment of the application is configured on a display screen, the display screen comprises a plurality of display modules, each display module comprises a driving chip and a pixel circuit, and the display modules are connected with a control device; the display device includes: an input unit, configured to receive a data signal and a control signal output by the control device according to the control method of the display screen in the first aspect; and the driving display unit is used for performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

A sixth aspect of the embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the control method of the display screen of the first aspect or the steps of the display method of the third aspect when the processor executes the computer program.

The seventh aspect of the embodiment of the application provides a control system of a display screen, which comprises control equipment and a display module connected with the control equipment, wherein the display module comprises a driving chip and a pixel circuit; the display module is used for acquiring image data to be displayed; processing the image data into data to be output required by the driving chip; converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip; the display module is used for receiving the data signals and the control signals output by the control equipment, and performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

An eighth aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the control method of the display screen of the first aspect or the steps of the display method of the third aspect.

A ninth aspect of the embodiments of the present application provides a computer program product for causing an electronic device to perform the steps of the control method of the display screen of the first aspect or the steps of the display method of the third aspect described above when the computer program product is run on the electronic device.

In the display module adopting the AM drive control mode, the driving chip has the capacity of outputting a line feed signal, so in the embodiment of the application, when the control equipment is connected with a plurality of display modules, the control equipment can convert image data into data to be output required by the driving chip, convert the data to be output into a data signal and a control signal, and transmit the data signal and the control signal to the driving chip so as to drive each display module to display, wherein the data signal can instruct a display unit driven by a pixel circuit to display, and the control signal can be used for instructing the driving chip to perform line feed control on the display unit driven by the pixel circuit and instruct the display unit to display.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a related art display module employing a PM driving method;

FIG. 2 is a schematic diagram of a display module using an AM driving method according to an embodiment of the present application;

fig. 3 is a schematic implementation flow chart of a control method applied to a display screen of a control device according to an embodiment of the present application;

FIG. 4 is a flowchart illustrating an implementation of image processing according to an embodiment of the present application;

fig. 5 is a schematic diagram of parallel image processing in the related art;

FIG. 6 is a schematic diagram of serial image processing provided by an embodiment of the present application;

fig. 7 is a schematic diagram of a specific structure of a control device according to an embodiment of the present application;

fig. 8 is a schematic diagram of a specific structure of a timing control output module in a control device according to an embodiment of the present application;

Fig. 9 is a schematic diagram of an implementation flow of a display method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a control device for a display screen according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a control system of a display screen according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be protected by the present application based on the embodiments of the present application.

With the development of the LED display screen to small-space high-resolution, the application of micro LEDs and OLEDs is increasing. MicroLED, OLED, mini-LED and the like are different from the traditional LED driving mode in driving mode. As shown in fig. 1, a conventional display module adopts a Passive Matrix (PM) driving mode, a driving chip and a decoding chip are disposed in the display module, and a control device needs to use various single-ended signals to control the driving chip (PMIC) and the decoding chip of the display module respectively. Taking a display module with m×n (m×n > 1, and M, N are all positive integers) as an example, assuming that the data channel of the PMIC is 16, the data signal received by the display module needs to be processed by m×3/16 PMICs, and the decoding chip needs to be controlled by an independent control signal to feed a line. Taking the control device to transmit two sets of data as an example, the data signals are single-ended signals, the first set of data is R1, G1, B1, the second set of data is R2, G2, B2, and the control signals include a control signal Dclk (shift clock output signal), lat (latch signal), OE (enable signal) to the PMIC, and a control signal A, B, C, D, E (line feed signal) to the decoding chip.

However, display modules of novel LED display screens such as Micro LEDs, OLEDs, mini-LEDs often adopt an AM driving control manner, as shown in fig. 2, for such display modules, one or more driving chips (e.g., souceIC ic) are required for each display module, and the driving chips generally have a line feed signal output capability. For example, the column channel output of the driver chip supports the output of the m×3 channels and the line feed signal supports the line feed of N lines. At this time, it is difficult to adapt to such a display module using a conventional control method of various single-ended signals.

It should be understood that embodiments of the present application have been completed based on the discovery and analysis described above, which are not prior art, but rather are to be considered part of the present application's contribution to the art.

In order to illustrate the technical scheme of the application, the application is illustrated by specific embodiments.

Referring to fig. 3, fig. 3 shows a schematic implementation flow chart of a control method of a display screen according to an embodiment of the present application, where the method may be applied to a control device, and may be applicable to a situation where a display module adopting an AM driving mode needs to be adapted.

It should be understood that the control device described above may be used to control a display screen and may refer to a scan card, a receive card, or a device configured with a scan card or a receive card. In some embodiments, the control device may also be embodied as a chip, such as a T-con (Timing Controller) chip or the like.

In an embodiment of the present application, the control device may be connected to a plurality of display modules. The display modules can be spliced to form a spliced wall. The control device can be connected with the display modules in parallel; the display module can be connected with a plurality of display modules in cascade, namely, the control equipment is connected with one display module in series, and the display module is connected with other display modules in cascade, so that the application is not limited. The display module is a component with display capability, for example, may refer to a lamp panel, a display panel, etc., and the display module may be provided with a lamp point and present different color development based on different brightness of the lamp point.

Each display module may include a driving chip and a pixel circuit. The driver chip may refer to sourcelic or other chips supporting AM driving methods. The pixel circuit is used for controlling the display unit array of a plurality of rows and a plurality of columns to display, and each display unit can refer to R, G, B light points.

Specifically, the control method of the display screen may include the following steps S301 to S303.

Step S301, image data to be displayed is acquired.

The image data is the image data which is required to be displayed by the display module. In some embodiments, the image data may be data pre-stored in the memory of the control device, or may be externally transmitted data. For example, the control device may acquire the image data transmitted by the data transmission device.

In step S302, the image data is converted into data to be output required by the driving chip.

Specifically, according to actual needs, image data translation, clipping, correction, linear domain or nonlinear domain conversion and other image processing can be performed on the image data, so as to obtain data to be output required by the driving chip. The data to be output is the data which is required to be output to the display module by the control equipment.

Step S303, converting the data to be outputted into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip to drive each display module for displaying.

Specifically, the control device may process a signal for converting data to be output into a specific protocol format through a timing control circuit or a program, to obtain a data signal and a control signal. The data signal is used to instruct the display unit driven by the pixel circuit to display, and may refer to a differential data signal, for example. The data signal may indicate a display parameter, such as the R, G, B component, for each display element. The control signal is used for indicating the driving chip to perform line feed control on the display unit driven by the pixel circuit and indicating the display unit to display, and can be a single-ended signal.

After the data signals and the control signals are obtained, the control equipment can transmit the data signals and the control signals to the driving chip through the module interface and the connecting line so as to drive each display module to display through the driving chip.

In the embodiment of the application, when the control device is connected with a plurality of display modules, the control device can convert image data into data to be output required by the driving chip, convert the data to be output into data signals and control signals, and transmit the data signals and the control signals to the driving chip to drive each display module to display, wherein the data signals can instruct a display unit driven by a pixel circuit to display, and the control signals can instruct the driving chip to perform line feed control on the display unit driven by the pixel circuit and instruct the display unit to display.

In some embodiments, as shown in fig. 4, processing the image data into data to be output required for driving the chip may include the following steps S401 to S402.

Step S401, performing serial processing on the image data to obtain processed image data.

In an embodiment of the present application, the control apparatus may store the image data in the memory after acquiring the image data. Accordingly, when processing image data, the above-described serial processing may include a serial reading processing and a serial correction processing. The serial reading process reads image data from the memory serially. The serial correction processing is to serially perform image correction on the read image data.

As shown in fig. 5, in order to enable parallel output of image data to a plurality of display modules, in the related art, parallel processing according to the load of the display modules is required at the time of image processing. Taking the example of reading the image data, at this time, the control device needs to read the first pixel in the pixel area of each display module in the image data at the same time, then read the next pixel in the pixel area of each display module in the image data at the same time, and so on, taking the example of m×n display modules, each processing needs to process m×n pixel points at the same time. This way the control device processes more and less efficiently in reading data and image processing.

Based on this, as shown in fig. 6, in the embodiment of the present application, the control device can acquire the optical characteristic information and the correction information of the pixels line by line in the image data. Wherein each row of pixels comprises pixels located in at least two pixel areas. And then, according to the correction information of each pixel, sequentially carrying out correction processing on the corresponding optical characteristic information to obtain processed image data.

Taking a row-by-row reading as an example, the control device may first read a first pixel of a first row, then read the next pixel of the same row, and so on until the last pixel of the first row (i.e. the rightmost border of the image data) is read, then read the first pixel of a second row, and so on until the last pixel of the last row is read.

That is, each reading and correcting process is only to one pixel point, and parallel reading is not needed according to the splicing mode of the display module, so that the use bandwidth of the memory is reduced, and the reading efficiency of the memory is improved.

It should be noted that, the optical characteristic information includes, but is not limited to, RGB channel values, chromaticity, brightness, color temperature, and the like, and the correction information may refer to a correction coefficient of each pixel, where the correction coefficient may correct the optical characteristic information to a target value required by the display module.

The correction coefficient is a coefficient acting on the linear domain data, considering that the correction information is typically a coefficient based on analysis of optical information in an image, the optical information being a type of linear domain data. In the process of acquiring image data, when the data input from an external source is not linear domain data, the correction coefficient cannot be applied. Therefore, if the image data is non-linear domain image data, the control device may convert the image data into linear domain image data before acquiring the optical characteristic information and the correction information.

Specifically, the image data may be data transmitted by a data transmission apparatus. The data transmitting apparatus refers to an apparatus that provides a data source, and may refer to a transmitting card or an upper computer, for example. In order to meet the requirements of image processing, transmission and the like of the data transmission device, the transmitted image data is usually visual image data, for example, data in BMP, JPG and the like, and the data is compressed image data, namely, image data in a nonlinear domain. In order that the correction coefficient may be applied to the image data, in an embodiment of the present application, the control device may convert the image data from a nonlinear domain to a linear domain. Specifically, the control device may perform gamma table lookup, and perform gamma conversion on the image data using the gamma coefficient obtained by the table lookup, so as to convert the image data in the nonlinear domain into the image data in the linear domain. The gamma conversion may perform a nonlinear operation on the image data such that the gray value of the output image data is exponentially related to the gray value of the input image data.

Step S402, converting the processed image data into nonlinear domain image data to obtain data to be output.

For a display module adopting an AM driving mode, a driving chip usually needs to receive 8bit or 10bit nonlinear domain data, and in order to adapt to the display module, a control device can convert processed image data into nonlinear domain image data according to preset conversion parameters to obtain data to be output. Wherein, the preset transformation parameter is related to the index during gamma inverse transformation, and can be set by a user or according to an experience value. The control device may convert the processed image data into non-linear domain image data by gamma inverse transformation, i.e. the inverse process of the aforementioned gamma variation. Illustratively, the transformation parameters may be used to implement the inverse transformation of gamma2.2 and the inverse transformation of gamma 2.8.

For ease of understanding, fig. 7 shows a specific structural schematic diagram of the control apparatus. The data transmission device transmits the image data and the instruction to the control device through a high-speed data interface (such as a network port). The control device analyzes the image data through the protocol analysis module, stores the image data in the memory, and carries out corresponding response processing on the command. The image processing module reads out the optical characteristic data from the memory in series through the image reading module, and reads out the correction coefficient through the correction module so as to restore the image data to the memory after gamma conversion, point-by-point correction and nonlinear domain conversion, and the output is controlled by the timing control output module so as to match the processing of the back-end driving chip.

Correspondingly, for the control of the timing control output module, in the process of performing serial processing on the corrected image data according to the load size of each display module, the method may include: dividing the data to be output according to the resolution of each display module to obtain sub-data corresponding to each display module; gamma calibration is respectively carried out on the sub data corresponding to each display module group, and calibrated data corresponding to each display module group is obtained; and converting the calibrated data corresponding to each display module into data signals and control signals, and transmitting the data signals and the control signals to the driving chips of the display modules in parallel.

Specifically, the data to be output can be used for splicing and displaying a plurality of display modules, and can be divided into a plurality of sub-data, wherein each sub-data is a part (namely the pixel area) of the different display modules to be displayed, so that the sub-data corresponding to each display module can be obtained by dividing the sub-data according to the resolution of each display module.

The gamma calibration, namely gamma correction, is used for enabling the display effect of the display module to be more linear. After gamma calibration, calibrated data corresponding to each display module can be obtained. According to the calibrated data corresponding to each display module, the data signals and the control signals of each display module can be obtained through conversion, and then the data signals and the control signals are transmitted to the driving chips of each display module in parallel.

Specifically, because the difference between the OLED and micro led display modules is large, it is necessary to independently apply register configuration and gamma conversion relation to each display module. During correction, the control device can acquire register configuration information of each display module, and gamma calibration is performed on sub-data corresponding to each display module according to the corresponding register configuration information to obtain calibrated data corresponding to each display module.

Specifically, in the timing control output module, the image reading module can read the data to be output after correction and nonlinear domain conversion from the memory, and according to the load size of the display module, different register configuration and gamma calibration logic processing are respectively performed on each display module. The register configuration and gamma calibration data used by each display module may be the same or different. The gamma calibration is mainly to perform data mapping by re-looking up table for data under the nonlinear domain according to the characteristics of the output screen, so that the display of the display module is more linear. The register configuration and gamma calibration data of each display module can be stored in a memory of the control equipment, and also can be configured in real time through upper computer software in an upper computer connected with the control equipment. As shown in the specific structural schematic diagram of the timing control output module in fig. 8, when outputting data, the timing control output module may read the corrected image data through the image processing module, divide and store the data according to the load size of the display module, then perform register configuration and gamma calibration respectively with the display modules as units (1 to i in the drawing respectively represent one display module, i is greater than 1), and perform synchronous output processing through the interface timing module, so as to output the data to each display module synchronously.

In the embodiment of the application, the nonlinear domain conversion logic is added in the image processing module, and the nonlinear domain data is output to the back-end display module, so that the display effect can be better improved.

It should be noted that, the data signal and the control signal may be signals supporting the MIPI (Mobile Industry Processor Interface) protocol, and the control device may perform signal output through different serial output interfaces.

The serial transmission interface may be a signal interface supporting MIPI, P2P (peer-to-peer), LVDS (Low-Voltage Differential Signaling) protocols, which is not limited to the present application. Specifically, the control device may generate and transmit a signal supporting the MIPI protocol to the driver chip according to the data to be output. Alternatively, the control device may generate a supporting TTL according to the data to be output

(Transconnector-Transconnector Logic) and converting the signals supporting the TTL protocol into signals supporting the MIPI protocol through the interface chip to transmit the signals supporting the MIPI protocol to the driving chip. Or, the control device may generate LVDS signals according to the data to be output, convert the LVDS signals into signals supporting the TTL protocol through the interface chip, and convert the signals supporting the TTL protocol into signals supporting the MIPI protocol through the interface chip, so as to transmit the signals supporting the MIPI protocol to the driver chip.

Referring to fig. 7, the control apparatus may support respective interface protocol outputs through the timing control output section. Specifically, the timing control output module supports outputting signals supporting TTL protocol to an interface chip of the control device, the interface chip outputs signals supporting MIPI protocol to the display module under the control of SPI (Serial Peripheral Interface) protocol signals transmitted by the micro control unit (Microcontroller Unit, MCU), supports directly outputting signals supporting MIPI protocol to the display module, supports outputting signals supporting LVDS protocol to the LVDS decoding chip, and then outputs the timing required by the display module by the subsequent interface chip.

In addition, the control device can also support to output the P2P protocol signal to directly control the display module, and the application is not limited.

Through the serial transmission interface, the control device can synchronously transmit serial data to each display module to drive each display module to display pictures. The synchronous transmission may also be called parallel output, so that the process of receiving the corresponding serial data by each display module can be synchronous. After the display module receives the serial data, specific processing can be performed to perform driving display, for example, the serial data can be converted into a time sequence signal required by the display module, and driving display is completed in an AM driving mode. And the control device supports various serial output interfaces, can perform data transmission with higher transmission efficiency, and has more unified standards.

Correspondingly, the embodiment of the application also provides an output interface which is arranged on the control equipment and is connected with the driving chip of the display module. The output interface may include a first pin for outputting a data signal for instructing the display unit driven by the pixel circuit to display, and a second pin for outputting a control signal for instructing the driving chip to perform line feed control on the display unit driven by the pixel circuit and instructing the display unit to display.

Referring to fig. 9, fig. 9 shows a schematic implementation flow chart of a display method according to an embodiment of the present application, where the method can be applied to a display module and is applicable to a situation where a display module adopting an AM driving mode needs to be adapted.

Specifically, the display method may include the following steps S901 to S902.

Step S901 receives a data signal and a control signal output by a control device.

The manner in which the control device transmits the data signal and the control signal may refer to the descriptions of fig. 1 to 8, and the description of the present application is omitted.

In step S901, a line feed control is performed on the display units in the pixel circuit according to the control signal by the driving chip, so as to control the display units in the pixel circuit to display according to the control signal and the data signal.

Specifically, line feed control is performed on the display units in the pixel circuits based on the control signals, line scanning can be achieved, and the display units can be controlled to be lightened according to display parameters indicated by the data signals based on the control signals, so that each display unit can display the required color development.

It should be understood that, in the specific working process of the display module, reference may also be made to the foregoing detailed descriptions of fig. 1 to 8, and the description of the present application is omitted.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders in accordance with the application.

Fig. 10 is a schematic structural diagram of a control device 1000 for a display screen according to an embodiment of the present application, where the control device 1000 for a display screen is configured on a control apparatus.

Specifically, the control device 1000 of the display screen may include:

an image acquisition unit 1001 for acquiring image data to be displayed;

an image processing unit 1002, configured to convert the image data into data to be output required by the driving chip;

And an output control unit 1003, configured to convert the data to be output into a data signal and a control signal, and transmit the data signal and the control signal to the driving chip, so as to drive each display module to display, where the data signal is used to instruct the display unit driven by the pixel circuit to display, and the control signal is used to instruct the driving chip to perform line feed control on the display unit driven by the pixel circuit and instruct the display unit to display.

In some embodiments of the present application, the image processing unit 1002 may be specifically configured to: carrying out serial processing on the image data to obtain processed image data; and converting the processed image data into nonlinear domain image data to obtain the data to be output.

In some embodiments of the present application, the image processing unit 1002 may be specifically configured to: acquiring optical characteristic information and correction information of pixels line by line in the image data, wherein each line of pixels comprises pixels positioned in at least two pixel areas; and correcting the corresponding optical characteristic information according to the correction information of each pixel in turn to obtain the processed image data.

In some embodiments of the present application, the image processing unit 1002 may be specifically configured to: the image data is converted into image data of a linear domain.

In some embodiments of the present application, the output control unit 1003 may specifically be configured to: dividing the data to be output according to the resolution of each display module to obtain sub-data corresponding to each display module; gamma calibration is respectively carried out on the sub data corresponding to each display module group, and calibrated data corresponding to each display module group is obtained; and converting the calibrated data corresponding to each display module into the data signals and the control signals, and transmitting the data signals and the control signals to the driving chips of the display modules in parallel.

In some embodiments of the present application, the output control unit 1003 may specifically be configured to: acquiring register configuration information of each display module; and carrying out gamma calibration on the sub data corresponding to each display module according to the corresponding register configuration information to obtain calibrated data corresponding to each display module.

In some embodiments of the present application, the output control unit 1003 may specifically be configured to: and generating and transmitting the signals supporting the MIPI protocol to the driving chip according to the data to be output.

In some embodiments of the present application, the output control unit 1003 may specifically be configured to: and generating a signal supporting the TTL protocol according to the data to be output, and converting the signal supporting the TTL protocol into the signal supporting the MIPI protocol through an interface chip so as to transmit the signal supporting the MIPI protocol to the driving chip.

In some embodiments of the present application, the output control unit 1003 may specifically be configured to: according to the data to be output, generating LVDS signals, converting the LVDS signals into signals supporting a TTL protocol through an interface chip, and converting the signals supporting the TTL protocol into signals supporting the MIPI protocol through the interface chip, so as to transmit the signals supporting the MIPI protocol to the driving chip.

It should be noted that, for convenience and brevity of description, the specific working process of the control device 1000 of the display screen may refer to the corresponding process of the method described in fig. 1 to 8, and will not be described herein again.

Fig. 11 is a schematic structural diagram of a display device 1100 according to an embodiment of the application, where the display device 1100 is configured on a display module.

Specifically, the display device 1100 may include:

an input unit 1101, configured to receive a data signal and a control signal output by a control method of the display screen of the control device;

and the driving display unit 1102 is configured to perform line feed control on the pixel circuit according to the control signal by using the driving chip, so as to perform line feed control on the display unit in the pixel circuit according to the control signal, and control the display unit in the pixel circuit to display according to the control signal and the data signal.

It should be noted that, for convenience and brevity, the specific operation of the display device 1100 may refer to the corresponding process of the method described in fig. 9, which is not described herein again.

Fig. 12 is a schematic diagram of an electronic device according to an embodiment of the present application. The electronic device may refer to the control device or the display module.

Specifically, the electronic device 12 may include: a processor 120, a memory 121 and a computer program 122, such as a control program for a display screen, stored in said memory 121 and executable on said processor 120. The processor 120 implements the steps in the control method embodiments of the respective display screens described above, for example, steps S301 to S303 shown in fig. 3, when executing the computer program 122, or the processor 120 implements the steps in the respective display method embodiments described above, for example, steps S901 to S902 shown in fig. 9, when executing the computer program 122.

Alternatively, the processor 120 implements the functions of the modules/units in the above-described embodiments of the apparatus when executing the computer program 122, such as the functions of the image acquisition unit 1001, the image processing unit 1002, and the output control unit 1003 shown in fig. 10, and such as the functions of the input unit 1101 and the drive display unit 1102 shown in fig. 11.

The computer program may be divided into one or more modules/units, which are stored in the memory 121 and executed by the processor 120 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the electronic device.

For example, the computer program may be split into: an image acquisition unit, an image processing unit, and an output control unit. The specific functions of each unit are as follows: an image acquisition unit configured to acquire image data to be displayed; the image processing unit is used for converting the image data into data to be output required by the driving chip; the output control unit is used for converting the data to be output into a data signal and a control signal, transmitting the data signal and the control signal to the driving chip so as to drive each display module to display, wherein the data signal is used for indicating the display unit driven by the pixel circuit to display, and the control signal is used for indicating the driving chip to control the display unit driven by the pixel circuit to feed lines and indicate the display unit to display.

For another example, the computer program may be partitioned into: an input unit and a driving display unit. The specific functions of each unit are as follows: the input unit is used for receiving the data signals and the control signals output by the control equipment according to the control method of the display screen; and the driving display unit is used for performing line feed control on the pixel circuit according to the control signal through the driving chip so as to perform line feed control on the display unit in the pixel circuit according to the control signal and control the display unit in the pixel circuit according to the control signal and the data signal.

The electronic device may include, but is not limited to, a processor 120, a memory 121. It will be appreciated by those skilled in the art that fig. 12 is merely an example of an electronic device and is not meant to be limiting, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the electronic device may further include an input-output device, a network access device, a bus, etc.

The processor 120 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 121 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 121 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the electronic device. Further, the memory 121 may also include both an internal storage unit and an external storage device of the electronic device. The memory 121 is used to store the computer program and other programs and data required by the electronic device. The memory 121 may also be used to temporarily store data that has been output or is to be output.

It should be noted that, for convenience and brevity of description, the structure of the electronic device may refer to a specific description of the structure in the method embodiment, which is not repeated herein.

Referring to fig. 13, fig. 13 shows a control system 130 of a display screen according to an embodiment of the present application, which may include a control device and a display module connected to the control device, where the display module includes a driving chip and a pixel circuit.

The display module can be used for acquiring image data to be displayed; processing the image data into data to be output required by a driving chip; and converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip.

The display module can be used for receiving the data signals and the control signals output by the control equipment, and the drive chip is used for carrying out line feed control on the display units in the pixel circuits according to the control signals so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

It can be appreciated that the specific operation process of the control device and the display module may also refer to the specific descriptions of fig. 1 to 12, which are not repeated herein.

And, the control system 130 of the display screen may further include a control device and more devices besides a display module, which is not limited to the present application. The control system 130, such as a display screen, may further include the aforementioned data transmission device, where the data transmission device is configured to acquire the original data of the nonlinear domain, and transmit the original data to the control device; accordingly, the control device may also be configured to take the raw data as image data and convert the image data into image data of a linear domain.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. The control method of the display screen comprises a plurality of display modules and is characterized by being applied to control equipment, wherein the control equipment is connected with the plurality of display modules, and each display module comprises a driving chip and a pixel circuit; the control method of the display screen comprises the following steps:

acquiring image data to be displayed;

converting the image data into data to be output required by the driving chip;

the data to be output are converted into data signals and control signals, the data signals are output to the driving chip to drive each display module to display the image data, the data signals are used for indicating the display units driven by the pixel circuits to display, and the control signals are used for indicating the driving chip to perform line feed control on the display units driven by the pixel circuits and indicating the display units to display.

2. The control method of a display screen according to claim 1, wherein the processing the image data into data to be output required by the driving chip includes:

carrying out serial processing on the image data to obtain processed image data;

and converting the processed image data into nonlinear domain image data to obtain the data to be output.

3. The method for controlling a display screen according to claim 2, wherein the image data includes a pixel area corresponding to each display module;

the serial processing is carried out on the image data to obtain processed image data, which comprises the following steps:

acquiring optical characteristic information and correction information of pixels line by line in the image data, wherein each line of pixels comprises pixels positioned in at least two pixel areas;

and correcting the corresponding optical characteristic information according to the correction information of each pixel in turn to obtain the processed image data.

4. The control method of a display screen according to claim 2, wherein the image data is image data of a nonlinear domain; before acquiring the optical characteristic information and the correction information of the pixels line by line in the image data, the method further comprises:

The image data is converted into image data of a linear domain.

5. The method for controlling a display screen according to any one of claims 1 to 4, wherein the data to be output is used for a plurality of display modules to be spliced and displayed;

the converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip includes:

dividing the data to be output according to the resolution of each display module to obtain sub-data corresponding to each display module;

gamma calibration is respectively carried out on the sub data corresponding to each display module group, and calibrated data corresponding to each display module group is obtained;

and converting the calibrated data corresponding to each display module into the data signals and the control signals, and transmitting the data signals and the control signals to the driving chips of the display modules in parallel.

6. The method for controlling a display screen according to claim 5, wherein gamma calibration is performed on the sub data corresponding to each display module respectively, so as to obtain calibrated data corresponding to each display module, and the method comprises the steps of:

Acquiring register configuration information of each display module;

and carrying out gamma calibration on the sub data corresponding to each display module according to the corresponding register configuration information to obtain calibrated data corresponding to each display module.

7. The control method of a display screen according to any one of claims 1 to 4, wherein the data signal and the control signal are MIPI protocol-supporting signals; the converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip includes:

and generating and transmitting the signals supporting the MIPI protocol to the driving chip according to the data to be output.

8. The control method of a display screen according to any one of claims 1 to 4, wherein the data signal and the control signal are MIPI protocol-supporting signals; the converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip includes:

and generating a signal supporting the TTL protocol according to the data to be output, and converting the signal supporting the TTL protocol into the signal supporting the MIPI protocol through an interface chip so as to transmit the signal supporting the MIPI protocol to the driving chip.

9. The control method of a display screen according to any one of claims 1 to 4, wherein the data signal and the control signal are MIPI protocol-supporting signals; the converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip includes:

according to the data to be output, generating LVDS signals, converting the LVDS signals into signals supporting a TTL protocol through an interface chip, and converting the signals supporting the TTL protocol into signals supporting the MIPI protocol through the interface chip, so as to transmit the signals supporting the MIPI protocol to the driving chip.

10. The output interface is characterized by being arranged on control equipment and connected with a driving chip of a display module, wherein the display module comprises the driving chip and a pixel circuit;

the output interface comprises a first pin for outputting a data signal and a second pin for outputting a control signal, wherein the data signal is used for indicating a display unit driven by the pixel circuit to display, and the control signal is used for indicating the driving chip to perform line feed control on the display unit driven by the pixel circuit and indicating the display unit to display.

11. The display method is characterized by being applied to a display screen, wherein the display screen comprises a plurality of display modules, each display module comprises a driving chip and a pixel circuit, and the display modules are connected with a control device; the display method comprises the following steps:

receiving data signals and control signals output by the control device according to the control method of the display screen of any one of claims 1 to 9;

and performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

12. The control device of the display screen comprises a plurality of display modules and is characterized by being configured in control equipment, wherein the control equipment is connected with the plurality of display modules, and each display module comprises a driving chip and a pixel circuit; the control device of the display screen comprises:

an image acquisition unit configured to acquire image data to be displayed;

the image processing unit is used for converting the image data into data to be output required by the driving chip;

The output control unit is used for converting the data to be output into a data signal and a control signal, transmitting the data signal and the control signal to the driving chip so as to drive each display module to display, wherein the data signal is used for indicating the display unit driven by the pixel circuit to display, and the control signal is used for indicating the driving chip to control the display unit driven by the pixel circuit to feed lines and indicate the display unit to display.

13. The display device is characterized by being configured on a display screen, wherein the display screen comprises a plurality of display modules, each display module comprises a driving chip and a pixel circuit, and the display modules are connected with a control device; the display device includes:

an input unit for receiving a data signal and a control signal output by the control device according to the control method of the display screen of any one of claims 1 to 9;

and the driving display unit is used for performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

14. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the method for controlling a display screen according to any one of claims 1 to 9 or the processor, when executing the computer program, implements the steps of the method for displaying according to claim 11.

15. The display control system is characterized by comprising control equipment and a display module connected with the control equipment, wherein the display module comprises a driving chip and a pixel circuit;

the display module is used for acquiring image data to be displayed; processing the image data into data to be output required by the driving chip; converting the data to be output into a data signal and a control signal, and transmitting the data signal and the control signal to the driving chip;

the display module is used for receiving the data signals and the control signals output by the control equipment, and performing line feed control on the display units in the pixel circuits according to the control signals through the driving chip so as to control the display units in the pixel circuits to display according to the control signals and the data signals.

16. The display control system of claim 15, further comprising a data transmission device;

the data transmitting device is used for acquiring original data of a nonlinear domain and transmitting the original data to the control device;

the control device is further configured to take the raw data as the image data and convert the image data into image data of a linear domain.

17. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the control method of a display screen according to any one of claims 1 to 9, or wherein the computer program when executed by a processor implements the steps of the display method according to claim 11.