CN110012247A - The shutdown compensation method of OLED TV, OLED TV - Google Patents
The shutdown compensation method of OLED TV, OLED TV Download PDFInfo
- Publication number
- CN110012247A CN110012247A CN201910216600.4A CN201910216600A CN110012247A CN 110012247 A CN110012247 A CN 110012247A CN 201910216600 A CN201910216600 A CN 201910216600A CN 110012247 A CN110012247 A CN 110012247A
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- oled
- lithium battery
- power supply
- voltage
- power
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Classifications
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
Abstract
The invention discloses the shutdown compensation method of OLED TV, OLED TV, the method increases lithium battery group power supply module newly in OLED TV motherboard in advance, for the compensation power supply of OLED television shutdown；After the starting of OLED television startup, real-time monitoring judges the no power-off in mains ac power supply；If power-off, system enters blank screen and shields external key operation, and system simultaneously judges whether that TFT is needed to compensate；The power supply of control lithium battery group enters compensation process if necessary；When completing to compensate, then controls lithium battery group and stop power supply, into off-mode.The present invention overcomes existing OLED TV power-off after can not work belt come not can be carried out TFT compensation defect, built-in lithium battery design realize power-off can still carry out TFT compensation, effectively solve the problems, such as directly to power off and bring ghost when user does not watch.
Description
Technical field
The present invention relates to TV technologies, and in particular to a kind of shutdown compensation method of OLED TV, OLED TV.
Background technique
OLED(Organic Light-Emitting Diode Organic Light Emitting Diode at present) TV is that one kind does not need
Organic self-luminous TV of backlight, compared with LED television, there is contrast, wider array of angle of visibility, the high dynamic of superelevation to ring for it
Between seasonable, ultimate attainment frivolous, the also therefore referred to as novel display technology of the third generation, currently transported extensively in TV and field of mobile phones
With.
Since OLED TV passes through TFT(thin film transistor (TFT)) drive organic light-emitting diode to be shown, for a long time
After work, TFT characteristic can shift, to generate ghost.OLED TV is most effective in the industry prevents and eliminates setting for ghost
It counts, is exactly that standby rear timing carries out TFT compensation by backoff algorithm to TV, it is apparent that the design, which is limited by user, uses habit
Used --- it is directly powered off when if user does not watch, TV can not carry out TFT compensation.
Currently preventing and repair ghost method is the user's operation television standby by the case where TV persistently keeps electric power thus supplied
When, SOC system judges whether to need to carry out screen maintenance to repair ghost, if desired, then enters ghost backoff algorithm and is mended
Reparation is repaid, enters back into standby mode after the completion.If elongate member when having reached the use for needing to carry out screen maintenance, but due to user
When pulling out electricity and being unable to complete idle screen maintenance, TV then can be when user next time be switched on, and pop-up prompt suggests that user carries out
Idle screen maintenance.
The standby design for carrying out ghost compensation, is limited by user's use habit.The universal use habit of active user is not see
See direct power down process when TV, so then television system can not carry out ghost compensation, and watching OLED TV for a long time will appear
Ghost problem；If carrying out reminding electricity to user when TV reaches the duration requirement for needing to compensate reparation using duration
It is optionally maintained, is then easy to ignore and influence the usage experience of user by user, is easy to bring customer complaint in summary
Etc. problems.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of shutdown of OLED TV compensation
Method, OLED TV, the present invention provides a kind of OLED TV TFT of built-in lithium battery without being bound by user's use habit benefits
Design is repaid, can effectively be solved due to directly being powered off when user does not watch and bring TV cannot maintain compensation for a long time and lead
The ghost problem of cause.
In order to achieve the above object, this invention takes following technical schemes:
A kind of OLED TV, wherein include: the power panel that can be electrically connected with city, and the SOC system being connect respectively with power panel
Plate, the logic card for driving OLED screen to show；
The OLED TV further includes a lithium battery group power supply module for the compensation power supply of OLED television shutdown；
The lithium battery group power supply module first input end is connect with power panel, first output end of lithium battery group power supply module
It is connect with SOC system board, the lithium battery group power supply module second output terminal is connect with logic card.
The OLED TV, wherein the lithium battery group power supply module includes: for providing the lithium of power supply and power management
Battery pack and management module, for carrying out the voltage transformation module of voltage conversion:
The lithium battery group and management module input terminal are connected to a power panel wherein output end；
The lithium battery group and the management module other end are connected to the input terminal of voltage transformation module；
The voltage transformation module output end divides two-way to be respectively connected to SOC system board, logic card.
The OLED TV, wherein the lithium battery group power supply module further include: three outputs with voltage transformation module
Hold first diode (VD1), the second diode (VD2) and the third diode (VD3) being separately connected；
First output end of voltage transformation module is connected to the power panel and SOC system by the first diode (VD1)
It unites on the first connecting line of plate；
The voltage transformation module second output terminal is connected to the power panel and logic card by second diode (VD2)
The second connecting line on;
The voltage transformation module third output end is connected to the power panel and logic card by the third diode (VD3)
Third connecting line on.
The OLED TV, wherein the SOC system board is also connected with the first signal monitoring end (S1), for monitoring
220V AC power source whether there is or not feedback signal, when receive signal be it is low when, be judged as that 220V alternating current has disconnected；Conversely, sentencing
Break and has been accessed for 220V alternating current;
The SOC system board, which connect to connect with logic card, is provided with third signal monitoring point (S3);The voltage transformation module is also
It is connected with a second signal monitoring side (S2);
For when S1 signal becomes low level from high level, system judgement to be thought to have pulled out electricity, and then SOC system board judges whether
It needs to carry out TFT compensation, and then corresponding operating is carried out by S3 signal and logic card communication；After the completion of compensation, SOC system board
Control signal S2 is sent to the voltage transformation module in lithium electricity module, makes lithium electricity module from service.
The OLED TV, wherein
The power panel is connect by the first connecting line with SOC system board；
The power panel is connect by the second connecting line with logic card；
The power panel is connect by third connecting line with logic card.
The shutdown compensation method of any one of a kind of OLED TV, wherein include the following steps:
Charge step: 220V AC voltage inputs the work of TV internal power supply plate, and power panel exports first voltage VCC1 and gives SOC system
Plate of uniting is powered；SOC system board works normally, and control power panel exports second voltage VDD and tertiary voltage EVDD and supplies to logic card
Electricity；TV is lighted and is worked normally, and power panel exports charging voltage VCC and charges to the lithium battery of lithium battery group power supply module；Lithium
Battery exports the 4th voltage VCC-1 and exports the 5th voltage VCC1-1, the 6th voltage VDD-1, the 7th voltage through voltage transformation module
Tri- road voltage of EVDD-1 is awaited orders；Pass through Schottky diode first diode VD1, the second diode VD2, third diode respectively
VD3 progress is isolated with normal working voltage；When TV is normally shown, due to what is exported provided with lithium battery through voltage transformation module
Three road V Standbies are slightly less than power panel normal output voltage, and the output of lithium battery group no current, entire lithium electricity module, which is in, awaits orders
State；
Electric discharge and compensation process: when pulling out AC power source power-off, power panel stops output, the lithium battery of lithium battery group power supply module
Voltage is higher than power panel output voltage, and lithium battery group power supply module is power supply needed for SOC system board, logic card maintenance；TV is just
TFT compensation is often carried out, system is automatically cut off the power after the completion.
The shutdown compensation method, wherein further comprise the steps of:
First signal monitoring end (S1), monitoring 220V AC power source whether there is or not feedback signal, when receive signal be it is low when, judgement
It has been disconnected for 220V alternating current；Conversely, being judged as that 220V alternating current has accessed;
When S1 signal becomes low level from high level, system judgement is thought to have pulled out electricity, and then SOC system board judges whether to need
TFT compensation is carried out, and then corresponding operating is carried out by S3 signal and logic card communication；After the completion of compensation, SOC system board is sent
Signal S2 is controlled to the voltage transformation module in lithium electricity module, makes lithium electricity module from service.
A kind of shutdown compensation method of OLED TV, wherein include the following steps:
Lithium battery group power supply module is increased newly in OLED TV motherboard in advance, for the compensation power supply of OLED television shutdown；
After the starting of OLED television startup, real-time monitoring judges the no power-off in mains ac power supply；
If power-off, system enters blank screen and shields external key operation, and system simultaneously judges whether that TFT is needed to compensate；
The power supply of control lithium battery group enters compensation process if necessary；
When completing to compensate, then controls lithium battery group and stop power supply, into off-mode.
Compared to the prior art, the shutdown compensation method of OLED TV provided by the invention, OLED TV, the method exist
After TV power-off, it can be continued to power to correlation module by lithium battery, it is ensured that OLED TV can complete TFT compensation maintenance, simultaneously
It is also possible to prevent the problem of OLED TV misses brush machine, it is user-friendly, improve OLED television secure.
Detailed description of the invention
Fig. 1 is the functional block diagram of OLED TV preferred embodiment of the present invention.
Fig. 2 is the flow chart of the shutdown compensation method of OLED TV provided by the invention.
Fig. 3 is the work flow diagram of OLED TV preferred embodiment of the present invention.
Specific embodiment
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to
Limit the present invention.
A kind of OLED TV provided in an embodiment of the present invention, as shown in Figure 1, comprising: can be connect with alternating current (220V exchange)
Power panel 10, and the SOC system board 20 being connect respectively with power panel 10, the logic card 30 for driving OLED screen to show；
The OLED TV further includes a lithium battery group power supply module 40 for the compensation power supply of OLED television shutdown；
40 first input end of lithium battery group power supply module is connect with power panel 10, the lithium battery group power supply module 40 first
Output end is connect with SOC system board 20, and 40 second output terminal of lithium battery group power supply module is connect with logic card 30.
The effect of logic card be SOC system board is sent V-By-One viewdata signal (signal include RGB data letter
Number, control two class signal of signal) by logic card handle after, be converted into EPI signal, then be routed directly to oled panel reception core
Piece.RGB data signal is stored as row signal by handling shift register+buffer, for driving OLED organic light-emitting diodes
Pipe shines；Control signal shows image for controlling TFT pipe switch, driving OLED screen.Logic card, which is one, to be had software and consolidates
There are the component of program, built-in TCON IC, PM IC and Vcom circuit.
In the present embodiment, as shown in Figure 1, the lithium battery group power supply module 40 includes: for providing power supply and power supply pipe
The lithium battery group and management module of reason, for carrying out the voltage transformation module of voltage conversion.
Wherein, the lithium battery group and management module input terminal are connected to the wherein output end of power panel 10, for accessing
Power panel VCC voltage.
The lithium battery group and the management module other end are connected to the input terminal of voltage transformation module, for lithium battery group and
Management module exports VCC-1 voltage to voltage transformation module；
The voltage transformation module output end divides two-way to be respectively connected to SOC system board 20, logic card 30.
As shown in Figure 1, the power panel 10 is connect by the first connecting line (mark that line of VCC1) with SOC system board 20；
The power panel 10 is connect by the second connecting line (mark that line of VDD) with logic card 30；The power panel 10 is connected by third
Wiring (mark that line of EVDD) is connect with logic card 30.
Further, the OLED TV, the lithium battery group power supply module 40 further include: three with voltage transformation module
First diode VD1, the second diode VD2 and the third diode VD3 that a output end is separately connected.
First output end of voltage transformation module by the first diode VD1 be connected to the power panel 10 with
On first connecting line of SOC system board 20；First output end of voltage transformation module (output voltage VCC1-1).
The voltage transformation module second output terminal is connected to the power panel 10 and is patrolled by the second diode VD2
On the second connecting line for collecting plate 30;The voltage transformation module second output terminal output voltage VDD-1.
The voltage transformation module third output end is connected to the power panel 10 and is patrolled by the third diode VD3
On the third connecting line for collecting plate 30.The voltage transformation module third output end output voltage EVDD-1.
Further, the OLED TV, the SOC system board 20 are also connected with the first signal monitoring end (S1), are used for
Monitor 220V AC power source whether there is or not feedback signal, when receive signal be it is low when, be judged as that 220V alternating current has disconnected；Instead
It, is judged as that 220V alternating current has accessed.
The SOC system board 20, which connect to connect with logic card 30, is provided with third signal monitoring point (S3);The voltage turns
Mold changing block is also connected with a second signal monitoring side (S2).
For when S1 signal becomes low level from high level, system judgement to be thought to have pulled out electricity, and then SOC system board 20 is sentenced
It is disconnected whether to need to carry out TFT compensation, and then corresponding operating is carried out by S3 signal and the communication of logic card 30；After the completion of compensation,
SOC system board 20 sends control signal S2 to the voltage transformation module in lithium electricity module, makes lithium electricity module from service.
Based on the embodiment of above-mentioned OLED TV, the present invention also provides a kind of shutdown compensation sides of OLED TV
Method comprising following steps:
Charge step: 220V AC voltage input TV internal power supply plate 10 work, power panel 10 export first voltage VCC1 to
SOC system board 20 is powered；SOC system board 20 works normally, and control power panel 10 exports second voltage VDD and tertiary voltage EVDD
It powers to logic card 30；TV is lighted and is worked normally, and power panel 10 exports charging voltage VCC to lithium battery group power supply module 40
Lithium battery charging；Lithium battery exports the 4th voltage VCC-1 and exports the 5th voltage VCC1-1, the 6th voltage through voltage transformation module
VDD-1, tri- road voltage of the 7th voltage EVDD-1 are awaited orders；Pass through Schottky diode first diode VD1, the second diode respectively
VD2, third diode VD3 progress are isolated with normal working voltage；When TV is normally shown, due to being provided with lithium battery through voltage
Three road V Standbies of conversion module output are slightly less than 10 normal output voltage of power panel, and lithium battery group no current exports, entirely
Lithium electricity module is in armed state.
Electric discharge and compensation process: when pulling out AC power source power-off, power panel 10 stops output, lithium battery group power supply module 40
Lithium battery voltage be higher than 10 output voltage of power panel, lithium battery group power supply module 40 be SOC system board 20, logic card 30 maintain
Required power supply；TV is normally carried out TFT compensation, and system is automatically cut off the power after the completion.
Further, the shutdown compensation method, further comprises the steps of:
First signal monitoring end (S1), monitoring 220V AC power source whether there is or not feedback signal, when receive signal be it is low when, judgement
It has been disconnected for 220V alternating current；Conversely, being judged as that 220V alternating current has accessed;
When S1 signal becomes low level from high level, system judgement is thought to have pulled out electricity, and then SOC system board 20 judges whether to need
TFT compensation is carried out, and then corresponding operating is carried out by S3 signal and the communication of logic card 30；After the completion of compensation, SOC system board
20 send control signal S2 to the voltage transformation module in lithium electricity module, make lithium electricity module from service.
Therefore the present invention overcomes existing OLED TV power-off after can not work belt come not can be carried out TFT compensation
Defect, built-in lithium battery design realize that power-off can still carry out TFT compensation, effectively solve user directly power off when not watching and
Bring ghost problem.
Based on the above embodiment, as shown in Fig. 2, the present invention also provides a kind of shutdown compensation method of OLED TV, packet
Include following steps:
Step S100, it increases lithium battery group power supply module 40 newly in OLED TV motherboard in advance, is compensated for OLED television shutdown
Power supply；
Step S200, after OLED television startup starts, real-time monitoring judges the no power-off in mains ac power supply；
If step S300, powering off, system enters blank screen and shields external key operation, and system simultaneously judges whether that TFT is needed to mend
It repays；
Step S400, the power supply of control lithium battery group enters compensation process if necessary；
Step S500, it when completing to compensate, then controls lithium battery group and stops power supply, into off-mode.
Further, the shutdown compensation method of the OLED TV, further includes: if in compensation process, detecting user
Again electricity is plugged, system judges that user has plugged power supply again according to signal, into standby mode, user is waited to grasp in next step
Make.
Below by way of a concrete application embodiment, the invention will be described in further detail
As shown in figure 3, the OLED TV of the present embodiment, when system boot-> real-time monitoring S1 signal-> judgement is 220V exchange
If the no power-off-of power supply > power-off, system, which enters blank screen and shields external key operation-> system, judges whether that TFT is needed to mend
Repay-> into the compensation of compensation process-> completions or need not compensate for if necessary, then control lithium battery group stop powering->
Into off-mode.If in compensation process, user plugs electricity again, system judges that user has plugged electricity again according to S1 signal
Source waits user to operate in next step into standby mode.The present invention overcomes can not work belt after the power-off of existing OLED TV
The defect of TFT compensation is not can be carried out, built-in lithium battery design realizes that power-off can still carry out TFT compensation, effectively solution user
It is directly powered off and bring ghost problem when not watching.
In conclusion compared to the prior art, the shutdown compensation method of OLED TV provided by the invention, OLED TV,
The method can be continued to power to correlation module by lithium battery after TV power-off, it is ensured that OLED TV can complete TFT compensation
Maintenance, while it being also possible to prevent the problem of OLED TV misses brush machine, it is user-friendly, improve OLED television secure.
Certainly, those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method,
It is that related hardware (such as processor, controller etc.) can be instructed to complete by computer program, the program can store
In a computer-readable storage medium, which may include the process such as above-mentioned each method embodiment when being executed.Its
Described in storage medium can be for memory, magnetic disk, CD etc..
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (9)
1. a kind of OLED TV characterized by comprising the power panel that can be electrically connected with city, and connect respectively with power panel
SOC system board, the logic card for driving OLED screen to show；
The OLED TV further includes a lithium battery group power supply module for the compensation power supply of OLED television shutdown；
The lithium battery group power supply module first input end is connect with power panel, first output end of lithium battery group power supply module
It is connect with SOC system board, the lithium battery group power supply module second output terminal is connect with logic card.
2. OLED TV according to claim 1, which is characterized in that the lithium battery group power supply module includes: for providing
The lithium battery group and management module of power supply and power management, for carrying out the voltage transformation module of voltage conversion:
The lithium battery group and management module input terminal are connected to a power panel wherein output end；
The lithium battery group and the management module other end are connected to the input terminal of voltage transformation module；
The voltage transformation module output end divides two-way to be respectively connected to SOC system board, logic card.
3. OLED TV according to claim 2, which is characterized in that the lithium battery group power supply module further include: with voltage
First diode (VD1), the second diode (VD2) and the third diode that three output ends of conversion module are separately connected
(VD3)；
First output end of voltage transformation module is connected to the power panel and SOC system by the first diode (VD1)
It unites on the first connecting line of plate；
The voltage transformation module second output terminal is connected to the power panel and logic card by second diode (VD2)
The second connecting line on;
The voltage transformation module third output end is connected to the power panel and logic card by the third diode (VD3)
Third connecting line on.
4. OLED TV according to claim 1, which is characterized in that the SOC system board is also connected with the first signal monitoring
Hold (S1), for monitor 220V AC power source whether there is or not feedback signal, when receive signal be it is low when, be judged as 220V alternating current
It has disconnected；Conversely, being judged as that 220V alternating current has accessed;
The SOC system board, which connect to connect with logic card, is provided with third signal monitoring point (S3);The voltage transformation module is also
It is connected with a second signal monitoring side (S2);
For when S1 signal becomes low level from high level, system judgement to be thought to have pulled out electricity, and then SOC system board judges whether
It needs to carry out TFT compensation, and then corresponding operating is carried out by S3 signal and logic card communication；After the completion of compensation, SOC system board
Control signal S2 is sent to the voltage transformation module in lithium electricity module, makes lithium electricity module from service.
5. OLED TV according to claim 1, which is characterized in that
The power panel is connect by the first connecting line with SOC system board；
The power panel is connect by the second connecting line with logic card；
The power panel is connect by third connecting line with logic card.
6. a kind of shutdown compensation method of the OLED TV as described in claim any one of 1-5, which is characterized in that including walking as follows
It is rapid:
Charge step: 220V AC voltage inputs the work of TV internal power supply plate, and power panel exports first voltage VCC1 and gives SOC system
Plate of uniting is powered；SOC system board works normally, and control power panel exports second voltage VDD and tertiary voltage EVDD and supplies to logic card
Electricity；TV is lighted and is worked normally, and power panel exports charging voltage VCC and charges to the lithium battery of lithium battery group power supply module；Lithium
Battery exports the 4th voltage VCC-1 and exports the 5th voltage VCC1-1, the 6th voltage VDD-1, the 7th voltage through voltage transformation module
Tri- road voltage of EVDD-1 is awaited orders；Pass through Schottky diode first diode VD1, the second diode VD2, third diode respectively
VD3 progress is isolated with normal working voltage；When TV is normally shown, due to what is exported provided with lithium battery through voltage transformation module
Three road V Standbies are slightly less than power panel normal output voltage, and the output of lithium battery group no current, entire lithium electricity module, which is in, awaits orders
State；
Electric discharge and compensation process: when pulling out AC power source power-off, power panel stops output, the lithium battery of lithium battery group power supply module
Voltage is higher than power panel output voltage, and lithium battery group power supply module is power supply needed for SOC system board, logic card maintenance；TV is just
TFT compensation is often carried out, system is automatically cut off the power after the completion.
7. shutdown compensation method according to claim 6, which is characterized in that further comprise the steps of:
First signal monitoring end (S1), monitoring 220V AC power source whether there is or not feedback signal, when receive signal be it is low when, judgement
It has been disconnected for 220V alternating current；Conversely, being judged as that 220V alternating current has accessed;
When S1 signal becomes low level from high level, system judgement is thought to have pulled out electricity, and then SOC system board judges whether to need
TFT compensation is carried out, and then corresponding operating is carried out by S3 signal and logic card communication；After the completion of compensation, SOC system board is sent
Signal S2 is controlled to the voltage transformation module in lithium electricity module, makes lithium electricity module from service.
8. a kind of shutdown compensation method of OLED TV, which comprises the steps of:
Lithium battery group power supply module is increased newly in OLED TV motherboard in advance, for the compensation power supply of OLED television shutdown；
After the starting of OLED television startup, real-time monitoring judges the no power-off in mains ac power supply；
If power-off, system enters blank screen and shields external key operation, and system simultaneously judges whether that TFT is needed to compensate；
The power supply of control lithium battery group enters compensation process if necessary；
When completing to compensate, then controls lithium battery group and stop power supply, into off-mode.
9. the shutdown compensation method of OLED TV according to claim 1, which is characterized in that further include: if compensation process
In, detect that user plugs electricity again, system judges that user has plugged power supply again according to signal, into standby mode, waits
User operates in next step.
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| CN111405202A (en) * | 2020-03-24 | 2020-07-10 | 深圳创维－Rgb电子有限公司 | TCON L ESS mainboard signal conversion device and detection system |
| WO2022226681A1 (en) * | 2021-04-25 | 2022-11-03 | 京东方科技集团股份有限公司 | Display apparatus and control method therefor |
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| CN110012247B (en) | 2021-06-22 |
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