CN110545474B - Screen protection control method and control system of TFT (thin film transistor) liquid crystal screen - Google Patents
Screen protection control method and control system of TFT (thin film transistor) liquid crystal screen Download PDFInfo
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- CN110545474B CN110545474B CN201810524014.1A CN201810524014A CN110545474B CN 110545474 B CN110545474 B CN 110545474B CN 201810524014 A CN201810524014 A CN 201810524014A CN 110545474 B CN110545474 B CN 110545474B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
Abstract
The invention provides a TFT liquid crystal screen protection control method and a TFT liquid crystal screen control system.A machine core SOC sends a screen protection starting function signal to a screen end logic board if a television control instruction is not received within preset time under the starting state of the TFT liquid crystal screen; and after receiving the screen saver starting function signal, the screen end logic board triggers an aging test board of the TFT liquid crystal screen to start an aging test function, controls the liquid crystal screen to enter a screen saver state, and simultaneously controls other running application functions to be closed. According to the method and the system disclosed by the invention, based on the traditional television TFT liquid crystal screen aging test function, the written aging picture is replaced from the W/R/G/B picture to the required resource picture, and then the functional module is started according to the triggering mode of different screen aging test functions, so that the screen saver is realized, and the screen aging test function triggering does not need all modules of the machine core SOC to work, so that the power consumption is saved.
Description
Technical Field
The invention relates to the technical field of display control, in particular to a screen saver control method and a screen saver control system for a TFT (thin film transistor) liquid crystal screen.
Background
With the development of science and technology and media, the lcd tv will now perform a screen saver function, which not only can promote the latest information and tv programs, but also has advertising effect, thus providing benefits for users and manufacturers. However, the screen saver function of the existing lcd tv screen is implemented as follows: under the homepage menu, the external remote control and key operation can not be detected by the System On Chip (SOC) in a certain time, the screen saver APP can be started, and the display screen plays some media resource pictures and presents the media resource pictures in sequence. However, in the implementation mode of the screen saver APP, as in the case of a normal film source, the movement of the television is still in a normal operating state, and therefore, the power consumption of the television cannot be saved when the television is in the normal operating state.
Therefore, the prior art is subject to further improvement.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a screen saver control method and a screen saver control system for a TFT liquid crystal screen for a user, and overcomes the defect that in the prior art, when a liquid crystal television uses a screen saver APP for screen saver, the whole system is in a normal working state, and power consumption cannot be saved.
The first embodiment disclosed by the invention is a screen saver control method of a TFT liquid crystal screen, wherein the method comprises the following steps:
replacing the test picture in the aging test function with a screen saver picture;
when the TFT liquid crystal screen is in a starting state, if a television control instruction is not received within a preset time, the machine core SOC sends a signal for starting a screen protection function to the screen end logic board;
and after receiving the screen saver starting function signal, the screen end logic board triggers an aging test board of the TFT liquid crystal screen to start an aging test function, so that the stored screen saver picture is played through the aging test function to realize screen protection.
Optionally, the step of sending the start screen saver function signal to the screen end logic board by the core SOC includes:
the machine core SOC selects a corresponding I/O interface to send a screen protection starting function signal to a screen end logic board according to the type of a display screen to which the TFT liquid crystal screen belongs;
the start screen saver function signal is a combination of a high level and a clock signal.
Optionally, before the step of selecting a corresponding I/O interface to send a signal for starting the screen saver function to the screen end logic board according to the type of the display screen to which the TFT liquid crystal screen belongs by the core SOC, the method further includes:
and the machine core SOC identifies the display screen type of the TFT liquid crystal screen according to the screen parameter information input by the TFT liquid crystal screen.
Optionally, after receiving the screen saver starting function signal, the screen end logic board triggers an aging test board of the TFT liquid crystal screen to start an aging test function, including:
after receiving a screen saver function starting signal, the screen end logic board acquires a screen saver function parameter to which the TFT liquid crystal screen belongs;
and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
Optionally, a first memory for storing an aging picture is disposed on the aging test board, and an image processor is disposed on the screen end logic board; the image processor is in communication connection with the first memory;
the step of playing the stored screen saver picture to realize screen saver through the aging test function comprises the following steps:
and the image processor acquires the aging picture from the first memory and transmits the aging picture to the screen terminal to play the screen saver picture.
Optionally, a control register is further disposed on the screen end logic board; the control register establishes communication connection with a second memory stored on the external device through an I2C bus;
the step of replacing the test picture in the aging test function with the screen saver picture comprises the following steps:
the control register acquires the screen saver picture from the second memory and controls the aging picture stored in the first memory to be replaced by the screen saver picture.
A second embodiment of the present disclosure is a screen saver control system for a TFT liquid crystal display, including: the chip SOC, the screen end logic board and the aging test board with the aging test function are arranged in the TFT liquid crystal screen; the movement SOC and the aging test board are both connected with the screen end logic board;
the screen end logic board is used for controlling the test picture in the aging test function to be replaced by the screen saver picture;
the machine core SOC is used for sending a signal for starting a screen protection function to the screen end logic board if a television control instruction is not received within a preset time when the TFT liquid crystal screen is in a starting state;
and the screen end logic board is also used for triggering the ageing test board of the TFT liquid crystal screen to start an ageing test function after receiving the screen saver starting function signal so as to play the stored screen saver picture through the ageing test function to realize screen protection.
Optionally, the screen end logic board is further configured to obtain a screen saver function parameter to which the TFT liquid crystal screen belongs after receiving a screen saver function starting signal; and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
Optionally, a first memory for storing an aging picture is disposed on the aging test board, and an image processor is disposed on the screen end logic board;
the image processor is in communication connection with the first memory, acquires the aging pictures from the first memory, and transmits the aging pictures to the screen end for playing.
The screen end logic board is also provided with a control register;
optionally, the control register establishes a communication connection with a second memory stored on the external device through an I2C bus;
the control register is further used for controlling the screen saver picture to be acquired from the second storage, and replacing the aging picture stored in the first storage with the screen saver picture.
The method and the system have the advantages that based on the traditional television TFT liquid crystal screen aging test function, the written aging picture is replaced by the media resource picture required by a television manufacturer from the W/R/G/B picture, and then the functional module is started according to the triggering mode of different screen aging test functions, so that the screen saver is realized, and the screen aging test function is triggered without all modules of the machine core SOC, so that the power consumption can be saved.
Drawings
FIG. 1 is a flow chart of steps of a screen saver control method for a TFT LCD screen according to the invention;
FIG. 2 is a circuit diagram of a functional module of the screen side logic board according to the present invention;
FIG. 3 is a schematic diagram of a screen saver control system of the TFT LCD screen according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the module production link, the television needs to perform aging test on the TFT liquid crystal screen of the television so as to find the display defects of the TFT liquid crystal screen in advance and detect the reliability of the TFT liquid crystal screen. In the prior art, the aging test method for the TFT liquid crystal screen of the television is to light the TFT liquid crystal screen through the core board of the television to carry out aging test on the TFT liquid crystal screen, so that the core board of the television is provided with a W/R/G/B aging picture of the TFT liquid crystal screen, and the function of lighting the TFT liquid crystal screen in the aging test function is triggered to carry out screen protection by utilizing the function, so that the defect that the power consumption is eliminated when the screen protection APP is started to carry out screen protection is overcome, and the core is still in a normal working state.
A first embodiment disclosed in the present invention is a screen saver control method for a TFT liquid crystal display, as shown in fig. 1, including the following steps:
and step S1, replacing the test picture in the aging test function with a screen saver picture.
The invention uses the test picture in the aging test function to carry out screen protection, so the method firstly replaces the test picture in the aging test function with the screen protection picture, and directly uses the replaced screen protection picture to carry out screen protection when the aging test function is carried out.
And step S2, when the TFT liquid crystal screen is in a power-on state and a television control instruction is not received within a preset time, the machine core SOC sends a screen protection function starting signal to the screen end logic board.
When the TFT liquid crystal display television is in a power-on state, the time that the TFT liquid crystal display television does not receive the control signal is timed, if the television control instruction sent by a remote controller or a key is not received within the preset time, the current television is judged to be in an unused state, and a signal for starting the screen protection function is sent to a screen end logic board by the machine core SOC.
Specifically, the step of sending a signal for starting the screen saver function to the screen end logic board by the core SOC in this step includes:
the machine core SOC selects a corresponding I/O interface to send a screen protection starting function signal to a screen end logic board according to the type of a display screen to which the TFT liquid crystal screen belongs;
the start screen saver function signal is a combination of a high level and a clock signal.
Because different types of liquid crystal screens and data information transmitted to the screen end logic board may be different, the step of selecting a corresponding I/O interface to transmit a start screen protection function signal to the screen end logic board by the core SOC according to the type of the display screen to which the TFT liquid crystal screen belongs further includes:
and the machine core SOC identifies the display screen type of the TFT liquid crystal screen according to the screen parameter information input by the TFT liquid crystal screen. In this step, the machine core SOC sends the information of starting the screen saver function matched with the corresponding bus interface to the screen end logic board according to the display screen type to which the TFT liquid crystal screen belongs.
Specifically, the machine core SOC identifies the display screen type to which the TFT liquid crystal screen belongs according to screen parameter information input by the TFT liquid crystal screen. The screen parameter information can be obtained from the data information transmitted with the screen end logic board, and the screen parameter information comprises: interface information, voltage information or signal channel information and the like, and the screen end logic board establishes I/O bus communication with the movement SOC.
And step S3, after the screen end logic board receives the screen saver function starting signal, triggering an aging test board of the TFT liquid crystal screen to start an aging test function, and playing the stored screen saver picture through the aging test function to realize screen protection.
And when the screen end logic board receives the screen protection starting function signal transmitted by the chip SOC in the step S1, triggering the burn-in test board to start the burn-in test function.
Due to the fact that different types of screens are triggered in different modes, after the screen end logic board receives the screen saver starting function signal, specifically, the step of triggering the ageing test board of the TFT liquid crystal screen to start the ageing test function comprises the following steps:
after receiving a screen saver function starting signal, the screen end logic board acquires a screen saver function parameter to which the TFT liquid crystal screen belongs;
and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
And after the screen end logic board receives the screen saver starting function signal, identifying the screen saver function parameter to which the TFT liquid crystal screen belongs, and sending a trigger control signal according to the identified screen saver function parameter.
Specifically, the trigger control signals sent out according to different types of liquid crystal screens are shown in table 1:
TABLE 1 statistical table of trigger modes of TFT LCD aging test function
As shown in table 1, the aging test triggering method of the huaxing photoelectric TFT liquid crystal panel is as follows: the HD screen and the FHD screen only need to connect the aging test interface with GND and a power supply voltage of 12V; besides connecting the aging test interface of the UD screen to GND and a supply voltage of 12V, the 23 rd pin of the aging test interface of the UD screen needs to be pulled up to 3.3V.
The aging test triggering mode of the Samsung TFT liquid crystal screen is as follows: the HD screen, the FHD screen and the UD screen are connected with the GND and the 12V power supply voltage only through the aging test interface.
The aging test triggering mode of the LG TFT liquid crystal screen is as follows: the HD screen needs to connect an aging test interface thereof with GND and a power supply voltage connected to 12V, and needs to pull up a 30 th pin of the aging test interface thereof to 3.3V; the FHD screen needs to connect an aging test interface thereof with GND and a power supply voltage connected with 12V, and needs to pull up a 44 th pin of the aging test interface thereof to 3.3V; the UD screen needs to connect the aging test interface thereof with GND and a supply voltage connected to 12V, and needs to pull up a 23 rd pin of the aging test interface thereof to 3.3V.
The aging test triggering mode of the group-created TFT liquid crystal screen is as follows: the HD screen connects the aging test interface with GND and a power supply voltage of 12V, needs to pull up the 10 th pin of the aging test interface to 3.3V, and simultaneously needs to provide an LVDS CLOCK signal for the 10 th pin of the aging test interface; the FHD screen needs to connect an aging test interface thereof with GND and a power supply voltage connected with 12V, needs to pull up a 1 st pin of the aging test interface thereof to 3.3V, and simultaneously needs to provide an LVDS CLOCK signal for the 1 st pin of the aging test interface thereof; the UD screen needs to connect the aging test interface with GND and a supply voltage connected with 12V, and needs to pull up a 23 rd pin of the aging test interface to 3.3V, and meanwhile, if a 22 nd pin of the aging test interface is pulled up to 3.3V, an aging picture of the UD screen is paused.
The aging test triggering mode of the friend TFT LCD screen is as follows: the HD screen needs to connect an aging test interface thereof with GND and a power supply voltage connected to 12V, and needs to pull up a 27 th pin of the aging test interface thereof to 3.3V; the FHD screen needs to connect an aging test interface thereof with GND and a power supply voltage connected with 12V, and needs to pull up a 4 th pin thereof to 3.3V; the UD screen connects the aging test interface thereof to GND and a supply voltage of 12V, and needs to pull up a 23 rd pin of the aging test interface thereof to 3.3V.
Specifically, a first memory for storing an aging picture is arranged on the aging test board, and an image processor is arranged on the screen end logic board and connected with the first memory.
And the first memory stores an aging picture for screen display during aging test. When the aging test function is started, the image processor acquires the aging picture from the first memory and transmits the aging picture to the screen terminal to play the screen saver picture.
Optionally, the step of controlling the liquid crystal screen to enter the screen saver state further includes:
and the control register on the screen end logic board establishes communication connection with a second memory stored on the external equipment through an I2C bus, acquires the screen saver picture from the second memory and controls the aging picture stored in the first memory to be replaced by the screen saver picture.
Referring to fig. 2, when a user needs to replace a screen saver picture, the screen saver picture to be used is stored in the second memory, the host in the control register performs information interaction with the second memory through a serial bus to obtain the screen saver picture stored in the second memory, and the control register is further connected with the first memory and is used for controlling the aging picture in the first memory to be replaced by the screen saver picture.
In a specific application, referring to fig. 2, the user first stores the pictures for the screen saver in the second memory 109, the host 1081 in the control register 108 obtains the pictures of the screen saver stored by the user from the second memory 109, and the control register 108 is further configured to control the aged pictures stored in the first memory 106 to be replaced with the pictures of the screen saver obtained from the second memory 108.
When the TFT liquid crystal display is in a normal display state, the screen end logic board receives an LVDS/Dual signal transmitted by the liquid crystal display through the LVDS signal receiving end 102, and sends the LVDS/Dual signal to the display screen for displaying through the image processor 103, the TCON rear end 104, and the Mini-LCDS signal sending end 105 in sequence, and simultaneously controls and processes the received signal through the PWM controller 101 and the Gamma/VOCM controller 107, respectively.
When the screen-side logic board receives the function of starting the aging test, the image processor 103 calls an image from the first memory 106 to display the screen saver.
The method provided by the invention is based on the aging test function of the traditional television TFT liquid crystal screen, the aging picture written in the aging test board is replaced by the aging picture required to be played from the WRGB picture, then the aging function test module is started according to the trigger mode of different screen aging test functions, the screen protection is realized, and the screen aging test function trigger does not need all modules of the machine core SOC to work, so that the power consumption can be saved.
A second embodiment of the present disclosure is a screen saver control system for a TFT liquid crystal display, as shown in fig. 3, including: the movement SOC310, the screen end logic board 320 and the aging test board 330 with the aging test function are arranged in the TFT liquid crystal screen 30; the movement SOC310 and the burn-in test board 330 are both connected to the screen end logic board 320.
The screen end logic board 320 is configured to control to replace the test picture in the aging test function with a screen saver picture.
The movement SOC310 is used for sending a signal for starting a screen saver function to the screen end logic board if a television control instruction is not received within a preset time when the TFT liquid crystal screen is in a starting state; the function of which is as described in step S1.
The screen end logic board 320 is further configured to trigger the aging test board 330 of the TFT liquid crystal display to start an aging test function after receiving the signal for starting the screen saver function, and in the aging test process, control to replace an aging picture of the aging test with a screen saver picture for screen protection, and simultaneously close other running application functions, where the functions are specifically as described in step S2.
Specifically, the screen end logic board 320 is further configured to obtain a screen saver function parameter to which the TFT liquid crystal screen belongs after receiving a signal for starting a screen saver function; and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
Specifically, a first memory for storing an aging picture is arranged on the aging test board 330, and an image processor is arranged on the screen end logic board;
the image processor is in communication connection with the first memory, acquires the aging pictures from the first memory, and transmits the aging pictures to the screen end for playing.
Specifically, the screen end logic board 320 is further provided with a control register;
the control register is used for establishing communication connection with a second memory stored on the external device through an I2C bus, and the control register is also used for controlling the screen saver picture to be obtained from the second memory and replacing the aging picture stored in the first memory with the screen saver picture.
The invention has the beneficial effects that the invention provides a TFT liquid crystal screen protection control method and a control system, wherein when the TFT liquid crystal screen is in a starting state, if a television control instruction is not received within a preset time, the SOC of a machine core sends a screen protection function starting signal to a screen end logic board; and after receiving the screen saver starting function signal, the screen end logic board triggers an aging test board of the TFT liquid crystal screen to start an aging test function, controls the liquid crystal screen to enter a screen saver state, and simultaneously controls other running application functions to be closed. According to the method and the system disclosed by the invention, based on the traditional television TFT liquid crystal screen aging test function, the written aging picture is replaced from a W/R/G/B picture to a media resource picture required by a television manufacturer, and then the functional module is started according to the triggering mode of different screen aging test functions, so that the screen saver is realized, and the screen aging test function triggering does not need all modules of a machine core SOC to work, so that the power consumption can be saved.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. A screen protection control method of a TFT liquid crystal screen is characterized by comprising the following steps:
replacing the test picture in the aging test function with a screen saver picture;
when the TFT liquid crystal screen is in a starting state, if a television control instruction is not received within a preset time, the machine core SOC sends a signal for starting a screen protection function to the screen end logic board;
and after receiving the screen saver starting function signal, the screen end logic board triggers an aging test board of the TFT liquid crystal screen to start an aging test function, so that the stored screen saver picture is played through the aging test function to realize screen protection.
2. The method for controlling the screen saver of the TFT liquid crystal screen according to claim 1, wherein the step of sending a signal for starting the screen saver function to the screen end logic board by the core SOC includes:
the machine core SOC selects a corresponding I/O interface to send a screen protection starting function signal to a screen end logic board according to the type of a display screen to which the TFT liquid crystal screen belongs;
the start screen saver function signal is a combination of a high level and a clock signal.
3. The method for controlling the screen saver of the TFT liquid crystal display according to claim 2, wherein before the step of selecting a corresponding I/O interface to send a signal for starting the screen saver function to the screen end logic board according to the type of the display screen to which the TFT liquid crystal display belongs, the method further comprises:
and the machine core SOC identifies the display screen type of the TFT liquid crystal screen according to the screen parameter information input by the TFT liquid crystal screen.
4. The method for controlling the screen saver of the TFT LCD screen according to claim 1, wherein the step of triggering the burn-in board of the TFT LCD screen to start the burn-in test function after the screen end logic board receives the signal for starting the screen saver function comprises the steps of:
after receiving a screen saver function starting signal, the screen end logic board acquires a screen saver function parameter to which the TFT liquid crystal screen belongs;
and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
5. The method for controlling the screen saver of the TFT liquid crystal display according to claim 1, wherein a first memory for storing an aging picture is arranged on the aging test board, and an image processor is arranged on the screen end logic board; the image processor is in communication connection with the first memory;
the step of playing the stored screen saver picture to realize screen saver through the aging test function comprises the following steps:
and the image processor acquires the aging picture from the first memory and transmits the aging picture to the screen terminal to play the screen saver picture.
6. The method for controlling the screen saver of the TFT liquid crystal screen according to claim 5, wherein a control register is further arranged on the screen end logic board; the control register establishes communication connection with a second memory stored on the external device through an I2C bus;
the step of replacing the test picture in the aging test function with the screen saver picture comprises the following steps:
the control register acquires the screen saver picture from the second memory and controls the aging picture stored in the first memory to be replaced by the screen saver picture.
7. A screen protection control system of a TFT liquid crystal screen is characterized by comprising: the chip SOC, the screen end logic board and the aging test board with the aging test function are arranged in the TFT liquid crystal screen; the movement SOC and the aging test board are both connected with the screen end logic board;
the screen end logic board is used for controlling the test picture in the aging test function to be replaced by the screen saver picture;
the machine core SOC is used for sending a signal for starting a screen protection function to the screen end logic board if a television control instruction is not received within a preset time when the TFT liquid crystal screen is in a starting state;
and the screen end logic board is also used for triggering the ageing test board of the TFT liquid crystal screen to start an ageing test function after receiving the screen saver starting function signal so as to play the stored screen saver picture through the ageing test function to realize screen protection.
8. The system according to claim 7, wherein the screen end logic board is further configured to obtain a screen saver function parameter to which the TFT liquid crystal screen belongs after receiving a screen saver function starting signal; and outputting a corresponding trigger control signal to the TFT liquid crystal screen according to the screen protection function parameters to trigger the aging test function.
9. The screen saver control system of the TFT liquid crystal screen according to claim 7, wherein the burn-in board is provided with a first memory for storing a burn-in picture, and the screen end logic board is provided with an image processor;
the image processor is in communication connection with the first memory, acquires the aging pictures from the first memory, and transmits the aging pictures to the screen end for playing.
10. The screen saver control system for the TFT liquid crystal screen according to claim 9, wherein the screen end logic board is further provided with a control register;
the control register establishes communication connection with a second memory stored on the external device through an I2C bus;
the control register is further used for controlling the screen saver picture to be acquired from the second storage, and replacing the aging picture stored in the first storage with the screen saver picture.
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| CN104079635A (en) * | 2014-06-17 | 2014-10-01 | 深圳市同洲电子股份有限公司 | Updating method and system for screen protection pictures |
| CN104407727A (en) * | 2014-08-29 | 2015-03-11 | 小米科技有限责任公司 | Screen protection method and device |
| WO2017002995A1 (en) * | 2015-07-02 | 2017-01-05 | 가온미디어 주식회사 | Scenario-based power consumption control method in electronic device |
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