CN109285524B - Liquid crystal display, display method thereof, terminal and computer readable storage medium - Google Patents
Liquid crystal display, display method thereof, terminal and computer readable storage medium Download PDFInfo
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- CN109285524B CN109285524B CN201811462203.7A CN201811462203A CN109285524B CN 109285524 B CN109285524 B CN 109285524B CN 201811462203 A CN201811462203 A CN 201811462203A CN 109285524 B CN109285524 B CN 109285524B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a display method of a liquid crystal display, which comprises the following steps: acquiring the state of a register in the liquid crystal display; when the state of the register is an abnormal state, calling a preset display parameter; and resetting the liquid crystal display according to the preset display parameters. The invention also discloses a liquid crystal display, a terminal and a computer readable storage medium. The problem of black screen of the liquid crystal display can be solved without re-modifying the hardware of the liquid crystal display, and the normal use of the liquid crystal display is ensured.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display, a display method thereof, a terminal and a computer readable storage medium.
Background
A Liquid Crystal Display (LCD for short) is used as an important component of man-machine interaction of an intelligent terminal, and when the LCD fails, the functional experience of the whole product is influenced certainly. Therefore, it is very important to ensure the stability and reliability of the LCD.
When electrostatic discharge (ESD) or surge occurs, the LCD module is interfered and displays a black screen. At present, the liquid crystal display screen is protected by adding an electrostatic discharge protection circuit in hardware, so that the display of a black screen is avoided.
However, the addition and modification of hardware are usually performed in the production process of the product, once the problem of black screen of the LCD due to electrostatic discharge occurs after the product is shaped, the hardware modification is difficult, and the problem of black screen cannot be solved in time, which affects the normal use of the liquid crystal display.
Disclosure of Invention
The invention mainly aims to provide a liquid crystal display, a display method, a terminal and a computer readable storage medium thereof, and aims to solve the technical problem that after a product is molded, the problem that the normal use of the liquid crystal display is influenced because the liquid crystal display cannot be timely solved after a black screen appears is solved.
In order to achieve the above object, the present invention provides a display method of a liquid crystal display, the display method of the liquid crystal display comprising the steps of:
acquiring the state of a register in the liquid crystal display;
when the state of the register is an abnormal state, calling a preset display parameter;
and resetting the liquid crystal display according to the preset display parameters.
Optionally, after the step of resetting the liquid crystal display according to the preset display parameter, the method further includes:
and after the first preset time interval, returning to the step of acquiring the state of the register in the liquid crystal display.
Optionally, after the step of obtaining the status of the register in the liquid crystal display, the method further includes:
and when the state of the register is in a normal state, returning to the step of acquiring the state of the register in the liquid crystal display after a second preset time interval.
Optionally, before the step of obtaining the status of the register in the liquid crystal display, the method further includes:
acquiring the state of the liquid crystal display;
and when the liquid crystal display is in an open screen state, executing the step of acquiring the state of the register in the liquid crystal display.
Optionally, before the step of obtaining the status of the register in the liquid crystal display, the method further includes:
and when the liquid crystal display is detected to be opened, taking the preset display parameters as initial display parameters of the liquid crystal display.
Optionally, before the step of obtaining the status of the register in the liquid crystal display, the method further includes:
judging whether the liquid crystal display detects the interrupt response of the data signal;
and when the liquid crystal display detects an interrupt response of the data signal, executing the step of acquiring the state of the register in the liquid crystal display.
Optionally, before the step of obtaining the status of the register in the liquid crystal display, the method further includes:
when the liquid crystal display detects an interruption response of a data signal, judging whether the liquid crystal display receives the data signal;
and when the liquid crystal display receives the data signal, after the liquid crystal display displays the data information corresponding to the data signal, executing the step of acquiring the state of the register in the liquid crystal display.
Optionally, the preset display parameter at least includes at least one of a clock frequency, a resolution, a timing parameter, and a gamma parameter of the liquid crystal display.
In addition, to achieve the above object, the present invention provides a liquid crystal display, comprising: the display method comprises a memory, a processor and a display program of the liquid crystal display, wherein the display program of the liquid crystal display is stored on the memory and can run on the processor, and the display program of the liquid crystal display realizes the steps of the display method of the liquid crystal display when being executed by the processor.
In addition, to achieve the above object, the present invention provides a terminal, wherein the terminal has a liquid crystal display, and the terminal further includes: the display method comprises a memory, a processor and a display program of the liquid crystal display, wherein the display program of the liquid crystal display is stored on the memory and can run on the processor, and the display program of the liquid crystal display realizes the steps of the display method of the liquid crystal display when being executed by the processor.
In addition, in order to achieve the above object, the present invention further provides a computer-readable storage medium, wherein a display program of a liquid crystal display is stored on the computer-readable storage medium, and the display program of the liquid crystal display, when executed by a processor, implements the steps of the display method of the liquid crystal display as described above.
The liquid crystal display, the display method thereof, the terminal and the computer readable storage medium provided by the embodiment of the invention can acquire the state of the register in the liquid crystal display when the liquid crystal display operates, call the preset display parameters preset in a program when the state of the register is in an abnormal state, reset the liquid crystal display according to the preset display parameters and recover the display parameters of the liquid crystal display in the control chip. The display parameters in the liquid crystal display are recovered, so that the picture display function of the liquid crystal display is recovered, the problem of black screen of the liquid crystal display can be solved without reforming the hardware of the liquid crystal display, and the normal use of the liquid crystal display is ensured.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a display method of a liquid crystal display according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a display method of an LCD according to the present invention;
FIG. 4 is a flow chart of a liquid crystal display and a display method thereof according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a fourth embodiment of a liquid crystal display and a display method thereof according to the present invention;
FIG. 6 is a flowchart illustrating a fifth embodiment of a liquid crystal display and a display method thereof according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows:
acquiring the state of a register in the liquid crystal display;
when the state of the register is an abnormal state, calling a preset display parameter;
and resetting the liquid crystal display according to the preset display parameters.
In the prior art, after the product is molded, the problem that the liquid crystal display cannot be solved in time after the liquid crystal display is subjected to black screen is solved, and the normal use of the liquid crystal display is influenced.
The invention provides a solution, when the LCD runs, the state of the register in the LCD is obtained, when the state of the register is abnormal, the preset display parameter preset in the program is called, the LCD is reset according to the preset display parameter, and the display parameter of the LCD in the control chip is recovered. The display parameters in the liquid crystal display are recovered, so that the picture display function of the liquid crystal display is recovered, the problem of black screen of the liquid crystal display can be solved without reforming the hardware of the liquid crystal display, and the normal use of the liquid crystal display is ensured.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a liquid crystal display, and can also be terminal equipment with a liquid crystal display, such as an air conditioner, a television, a smart phone, a tablet personal computer, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001 such as a CPU, a liquid crystal display 1003, a memory 1004, and a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The processor 1001 includes a register, an arithmetic logic unit, an arithmetic unit, a control unit, and the like, the liquid crystal display 1003 includes a backlight source, a liquid crystal panel, and a driving circuit board, and the optional liquid crystal display 1003 may include a wired interface and a wireless interface of a thin film transistor liquid crystal display (TFT-LCD) standard. The memory 1004 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1004, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a network operation control application program.
In the terminal shown in fig. 1, the processor 1001 may be configured to call up a display program of a liquid crystal display stored in the memory 1004 and perform the following operations:
a display method of a liquid crystal display is characterized by comprising the following steps:
acquiring the state of a register in the liquid crystal display;
when the state of the register is an abnormal state, calling a preset display parameter;
and resetting the liquid crystal display according to the preset display parameters.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
and after the first preset time interval, returning to the step of acquiring the state of the register in the liquid crystal display.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
and when the state of the register is in a normal state, returning to the step of acquiring the state of the register in the liquid crystal display after a second preset time interval.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
acquiring the state of the liquid crystal display;
and when the liquid crystal display is in an open screen state, executing the step of acquiring the state of the register in the liquid crystal display.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
and when the liquid crystal display is detected to be opened, taking the preset display parameters as initial display parameters of the liquid crystal display.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
judging whether the liquid crystal display detects the interrupt response of the data signal;
and when the liquid crystal display detects an interrupt response of the data signal, executing the step of acquiring the state of the register in the liquid crystal display.
Further, the processor 1001 may call up the display program of the liquid crystal display stored in the memory 1004, and further perform the following operations:
when the liquid crystal display detects an interruption response of a data signal, judging whether the liquid crystal display receives the data signal;
and when the liquid crystal display receives the data signal, after the liquid crystal display displays the data information corresponding to the data signal, executing the step of acquiring the state of the register in the liquid crystal display.
Referring to fig. 2, a display method of a liquid crystal display according to a first embodiment of the present invention includes:
in step S10, the status of the register in the lcd is obtained.
When the lcd is affected by Electro-Static discharge (ESD) or surge, the control chip of the lcd is damaged, and the display parameters for controlling the display frames of the lcd in the control chip are lost, so that the lcd cannot normally display the frames, and a black screen display phenomenon occurs. When the liquid crystal display has a black screen abnormality, recording an abnormal state in a register of a control chip (specifically, a processor of the control chip) of the liquid crystal display. Therefore, when the liquid crystal display operates, the state of the register in the liquid crystal display is obtained, and whether the liquid crystal display has a black screen or not can be known according to the state of the register.
In step S20, it is determined whether the state of the register is abnormal.
And step S30, when the state of the register is abnormal, calling preset display parameters.
And step S40, resetting the liquid crystal display according to the preset display parameters.
And when the state of the register is an abnormal state, calling preset display parameters preset in a program, resetting the liquid crystal display according to the preset display parameters, and recovering the display parameters of the liquid crystal display in the control chip. The display parameters in the liquid crystal display are recovered, so that the picture display function of the liquid crystal display is recovered, the problem of black screen of the liquid crystal display can be solved without reforming the hardware of the liquid crystal display, and the normal use of the liquid crystal display is ensured. And writing a black screen abnormal identifier in the register when the liquid crystal display generates the black screen abnormality, and taking the state of the register as an abnormal state when the black screen abnormal identifier exists in the register.
The preset display parameters are all parameters required by the liquid crystal display to display the picture, and include clock frequency, resolution, timing parameters, gamma parameters and the like of the liquid crystal display. Each display parameter value can be specifically set according to the product model and the structure of the liquid crystal display.
In this embodiment, when the lcd is in operation, the state of the register in the lcd is obtained, and when the state of the register is abnormal, the preset display parameters preset in the program are retrieved, and the lcd is reset according to the preset display parameters, so as to recover the display parameters of the lcd in the control chip. The display parameters in the liquid crystal display are recovered, so that the picture display function of the liquid crystal display is recovered, the problem of black screen of the liquid crystal display can be solved without reforming the hardware of the liquid crystal display, and the normal use of the liquid crystal display is ensured.
Further, referring to fig. 3, a second embodiment of the display method of the liquid crystal display according to the present invention, based on the first embodiment, after the step S40, further includes:
in step S50, it is determined whether the time interval reaches a first preset time interval.
After the first predetermined time interval, the process returns to step S10, i.e. the status of the register in the lcd is obtained.
In order to prevent the lcd from being subjected to ESD or surge again during the use process, which results in the lcd becoming black again, after the lcd is reset and after a first preset time interval, step S10 is executed again, i.e. the state of the register in the lcd is obtained. If the state of the register is a normal state, no display parameter setting is carried out on a control chip of the liquid crystal display; if the register is in an abnormal state, executing steps S20-S40 to reset the LCD using the preset display parameters.
After the LCD is turned off, the LCD does not execute the image display operation any more, so the step of returning to execute the state of the register in the LCD is not executed until the LCD is turned off.
Similarly, after determining whether the state of the register is abnormal in step S20, if the state of the register is normal, the method returns to step S10 after a second preset time interval, that is, the state of the register in the lcd is obtained. And detecting the state of a register in the liquid crystal display at regular time in the whole process of displaying the picture of the liquid crystal display, calling preset display parameters when the state of the register is in an abnormal state, and resetting the liquid crystal display according to the preset display parameters. Thereby ensuring normal image display of the liquid crystal display. The values of the first preset time interval and the second preset time interval can be the same or different. If the values of the first preset time interval and the second preset time interval are different, the first preset time interval can be larger than the second preset time interval, and the probability of continuous black screen of the liquid crystal display is reduced.
In this embodiment, after the reset of the liquid crystal display and after the first preset time interval, step S10 is executed again, that is, the status of the register in the liquid crystal display is obtained. If the state of the register is a normal state, no display parameter setting is carried out on a control chip of the liquid crystal display; if the register is in an abnormal state, executing steps S20-S40 to reset the LCD using the preset display parameters. The liquid crystal display is prevented from being subjected to ESD or surge again in the using process, so that the liquid crystal display is prevented from being blacked again, and normal picture display of the liquid crystal display is guaranteed.
Further, referring to fig. 4, a third embodiment of the display method of the liquid crystal display according to the present invention, based on the first or second embodiment, before the step S10, further includes:
step S60, acquiring the state of the liquid crystal display;
when the lcd is in the on state, step S10 is executed to obtain the state of the register in the lcd.
Because the backlight source of the liquid crystal display is opened to display the picture when the liquid crystal display is in the on-screen state; in the off-screen state, the backlight source is turned off, and the liquid crystal display does not display the picture. Therefore, when the liquid crystal display is in a screen off state, even if a screen blacking phenomenon occurs, the use of the liquid crystal display is not influenced.
Therefore, before the register state of the liquid crystal display is acquired, the state of the liquid crystal display is acquired, and when the liquid crystal display is in the screen-on state, the register state of the liquid crystal display is acquired, so that the liquid crystal display in the screen-black state is reset.
In this embodiment, before the register state of the liquid crystal display is obtained, the state of the liquid crystal display is obtained, and when the liquid crystal display is in the on state, the register state of the liquid crystal display is obtained, so as to reset the liquid crystal display in the black state. The operation of resetting the liquid crystal display is reduced when the liquid crystal display is in a screen-off state, the program running frequency is reduced, and the service life of the liquid crystal display is prolonged.
Further, referring to fig. 5, a fourth embodiment of the display method of the liquid crystal display according to the present invention, based on any one of the first to third embodiments, before the step S10, further includes:
and step S70, when the liquid crystal display is detected to be opened, taking the preset display parameters as initial display parameters of the liquid crystal display.
Generally, when the liquid crystal display is turned off, no picture display is performed, so as to prevent the liquid crystal display from being subjected to black screen in the process of turning off the liquid crystal display, when the liquid crystal display is detected to be turned on, the preset display parameters are used as the initial display parameters of the liquid crystal display, and the normal display picture of the liquid crystal display is ensured.
In this embodiment, when it is detected that the liquid crystal display is turned on, the preset display parameters are used as initial display parameters of the liquid crystal display, so as to ensure that the liquid crystal display displays a picture normally.
Further, referring to fig. 6, a fifth embodiment of the display method of the liquid crystal display according to the present invention is based on any one of the first to fourth embodiments, before the step S10, further including:
step S80, determining whether the liquid crystal display detects an interrupt response of the data signal.
When the lcd detects an interrupt response of the data signal, the step S10 is executed to obtain the status of the register in the lcd.
Before the liquid crystal display receives the data signal, an interrupt response triggered by the transmission of the data signal is detected in advance. In order to ensure that the liquid crystal display displays normally when receiving the data signals and reading and displaying the pictures or videos corresponding to the data signals, the state of a register in the liquid crystal display is immediately acquired when the interrupt response of the data signals is detected, and the liquid crystal display is reset according to preset display parameters when the state of the register is in an abnormal state.
Further, after detecting the interrupt response of the data signal, the liquid crystal display determines whether the liquid crystal display receives the data signal, and if the liquid crystal display has received the data signal, the obtaining of the register state and the reset operation of the liquid crystal display are not executed, so as to avoid affecting the reading of the data signal and the corresponding display operation. And after the liquid crystal display finishes the display operation of the data signal, the state of the register is acquired, and the problem of black screen of the liquid crystal display is solved.
In this embodiment, when the interrupt response of the data signal is detected, the state of the register in the liquid crystal display is immediately acquired, and when the state of the register is in an abnormal state, the liquid crystal display is reset according to the preset display parameters. The display of the liquid crystal display is normal when the liquid crystal display receives the data signal and reads and displays the picture or the video corresponding to the data signal.
In addition, an embodiment of the present invention further provides a liquid crystal display, where the liquid crystal display includes: the display method of the liquid crystal display comprises a memory, a processor and a display program of the liquid crystal display, wherein the display program of the liquid crystal display is stored on the memory and can be operated on the processor, and the steps of the display method of the liquid crystal display are realized when the display program of the liquid crystal display is executed by the processor.
In addition, an embodiment of the present invention further provides a terminal, where the terminal has a liquid crystal display, and the terminal further includes: the display method of the liquid crystal display comprises a memory, a processor and a display program of the liquid crystal display, wherein the display program of the liquid crystal display is stored on the memory and can be operated on the processor, and the steps of the display method of the liquid crystal display are realized when the display program of the liquid crystal display is executed by the processor.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a display program of a liquid crystal display is stored on the computer-readable storage medium, and when the display program of the liquid crystal display is executed by a processor, the steps of the display method of the liquid crystal display according to the above embodiments are implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A display method of a liquid crystal display is characterized by comprising the following steps:
acquiring the state of a register in the liquid crystal display, wherein when the liquid crystal display has a black screen abnormity, a black screen abnormity identifier is written in the register, and when the black screen abnormity identifier exists in the register, the state of the register is taken as an abnormal state;
when the state of the register is an abnormal state, calling a preset display parameter;
resetting the liquid crystal display according to the preset display parameters;
after a first preset time interval, returning to the step of acquiring the state of the register in the liquid crystal display;
when the state of the register is a normal state, returning to the step of acquiring the state of the register in the liquid crystal display after a second preset time interval;
wherein the first preset time interval is greater than the second preset time interval;
before the step of obtaining the state of the register in the liquid crystal display, the method further comprises the following steps:
judging whether the liquid crystal display detects the interrupt response of the data signal;
when the liquid crystal display detects an interruption response of a data signal, judging whether the liquid crystal display receives the data signal;
when the liquid crystal display does not receive the data signal, executing the step of acquiring the state of a register in the liquid crystal display;
and when the liquid crystal display receives the data signal, after the liquid crystal display displays the data information corresponding to the data signal, executing the step of acquiring the state of the register in the liquid crystal display.
2. The method of claim 1, wherein the step of obtaining the status of the register in the lcd is preceded by the step of:
acquiring the state of the liquid crystal display;
and when the liquid crystal display is in an open screen state, executing the step of acquiring the state of the register in the liquid crystal display.
3. The method of claim 1, wherein the step of obtaining the status of the register in the lcd is preceded by the step of:
and when the liquid crystal display is detected to be opened, taking the preset display parameters as initial display parameters of the liquid crystal display.
4. The method as claimed in claim 1, wherein the predetermined display parameters include at least one of a clock frequency, a resolution, a timing parameter and a gamma parameter of the LCD.
5. A liquid crystal display, comprising: a memory, a processor and a display program of a liquid crystal display stored on the memory and executable on the processor, the display program of the liquid crystal display implementing the steps of the display method of the liquid crystal display according to any one of claims 1 to 4 when executed by the processor.
6. A terminal, characterized in that the terminal has a liquid crystal display, the terminal further comprising: a memory, a processor and a display program of a liquid crystal display stored on the memory and executable on the processor, the display program of the liquid crystal display implementing the steps of the display method of the liquid crystal display according to any one of claims 1 to 4 when executed by the processor.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a display program of a liquid crystal display, which when executed by a processor implements the steps of the display method of the liquid crystal display according to any one of claims 1 to 4.
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| CN110012170A (en) * | 2019-04-04 | 2019-07-12 | 中科创达(重庆)汽车科技有限公司 | Multi-screen timesharing switching and dynamic repositioning method, device and electronic equipment |
| CN112599105A (en) * | 2020-12-17 | 2021-04-02 | 珠海格力电器股份有限公司 | Liquid crystal display screen control method and control device |
| CN114827593A (en) * | 2022-06-28 | 2022-07-29 | 武汉海微科技有限公司 | Video detection method, device and equipment based on vehicle-mounted display screen and storage medium |
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