CN110049264A - A kind of laser television electric power supply control system and method - Google Patents
A kind of laser television electric power supply control system and method Download PDFInfo
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- CN110049264A CN110049264A CN201910245624.2A CN201910245624A CN110049264A CN 110049264 A CN110049264 A CN 110049264A CN 201910245624 A CN201910245624 A CN 201910245624A CN 110049264 A CN110049264 A CN 110049264A
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- power supply
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- laser television
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- 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
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- Lasers (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of laser television electric power supply control system and method, the system comprises: power panel, TV signal plate, fan control CPU module, DMD number optical processing technique plate, fan, power management module, power converter cube reason module and power conversion module；Power management module is used to provide the logic control of power supply and the standby booting lamp state power supply of TV signal plate；Power converter cube reason module is for providing the DMD power supply of number optical processing technique plate and fan；Power conversion module is for providing the power supply of fan control CPU module；Fan control CPU module enters normal operating conditions for controlling multiple fans, and operating temperature is in normal range (NR), and DMD number optical processing technique plate control ray machine and colour wheel enter working condition.The present invention carries out timing control by powering to laser television, guarantees control ray machine and colour wheel work when fan is in effective working condition, to guarantee that laser television is in stable working environment.
Description
Technical field
The present invention relates to ntelligent television technolog field more particularly to a kind of laser television electric power supply control system and methods.
Background technique
Laser television has more convenient, cost more relative to traditional tv in terms of large scale as the tv product of neomorph
Low advantage, the especially appearance of 4K laser television, the TV of such form are gradually received by market.Light in laser television
Machine, colour wheel etc. be its important core component, ray machine, colour wheel service life be influenced by temperature, the height of ambient temperature is direct
The service life of ray machine, colour wheel is influenced, therefore is directly related to laser television life and reliability.
In order to make laser television work in stabilization, reliable working environment, temperature control is all carried out in general laser television
The measures such as system, radiator fan, but due to the uncertain failure that total system is likely to occur, it can not further improving laser
TV temperature control protection, that is to say, that existing laser television temperature control protection also needs to further strengthen.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above-mentioned drawbacks in the prior art, the present invention provides a kind of sharp
Photoelectricity regards electric power supply control system and method, it is intended to carry out timing control by powering to laser television, guarantee that fan is in effective
When working condition, just system ray machine and colour wheel is allowed to work, to ensure that laser television core component is stable
Working environment, while improving the reliability of laser television protection.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of laser television electric power supply control system, wherein the laser television electric power supply control system includes: power panel, TV letter
Number plate, fan control CPU module, DMD number optical processing technique plate, fan, power management module, power converter cube reason module and
Power conversion module；
The power management module is used to provide the described the logic of power supply and the standby booting lamp state power supply of TV signal plate
Control；The power converter cube reason module is used to provide the described the power supply of DMD number optical processing technique plate and the fan；It is described
Power conversion module is used to provide the described the power supply of fan control CPU module；
The fan control CPU module enters normal operating conditions for controlling multiple fans, and operating temperature is in just
In normal range, the DMD number optical processing technique plate control ray machine and colour wheel enter working condition.
The laser television electric power supply control system, wherein the laser television electric power supply control system further include respectively with
The switching circuit that the power panel is connected with power conversion module, the switching circuit are used for defeated according to level height control voltage
Enter.
The laser television electric power supply control system, wherein the laser television electric power supply control system further include respectively with
The power panel, TV signal plate and fan control CPU module connect and logic circuit, it is described to be used to control with logic circuit
System output high level or low level.
The laser television electric power supply control system, wherein the laser television electric power supply control system further include with it is described
The temperature sensor of fan control CPU module connection, the temperature sensor are used to detect the temperature of preset key position, and
It is sent to the fan control CPU module；
And the voltage transformation module being connect with the power panel, what the voltage transformation module was used to export the power panel
The first voltage value is converted to second voltage value.
A kind of laser television method for controlling power supply based on laser television electric power supply control system as described above, wherein described
Laser television method for controlling power supply includes:
The power conversion module is powered according to the voltage that the power panel exports for the fan control CPU module；
After the fan control CPU module power supply, controls multiple fans and enter normal operating conditions, and receive temperature sensing
The temperature data of device detection；
When the fan control CPU module judges that operating temperature is in normal range (NR), the DMD number optical processing technique plate control
Ray machine and colour wheel processed enter working condition.
The laser television method for controlling power supply, wherein the laser television method for controlling power supply further include:
When the power panel provides alternating current and PWR_ON is low level, the power panel is in underloading high effective model, and only
12V power supply is provided, and supply object is the TV signal plate；
When PWR_ON is high level, the 12V for being supplied to the TV signal plate power supply is normal mode；
PWR_ON be high level under, and MCU_CTR_ON be high level when, power panel also simultaneously export 50V be supplied to power amplifier confession
Electric conversion electric power and power converter cube manage module for power supply, to provide the power supply of off signal processing board.
The laser television method for controlling power supply, wherein the laser television method for controlling power supply further include:
When system handles standby mode, the power panel is in light-load mode, and the power management module provides light-load mode
Under 12V give the TV signal plate power supply；
When system enters open state, system starting booting logic, the power management module provides the TV signal plate
Power supply required for powered operation；
PWR_ON is set high level by the TV signal plate, and the power panel provides the stable 12V needed for working normally
Power supply, when PWR_ON is high level, the input voltage of the power conversion module starts to power Simultaneous Switching circuit, and voltage
For 12V；
The power conversion module starts to be powered to the fan control CPU module, and controls fan and rotated, together
When receive temperature sensor and detect the temperature of preset key position；
When temperature is normal, high level is set by MCU_ON and FB_ON, the TV signal plate sets PWR_ON and MB_ON
It is set to high level；
Input terminal with logic circuit is high level, by being also high level with the MCU_CTR_ON after logic circuit, institute
Power panel is stated in MCU_CTR_ON state, starts to export 50V power supply；
When the power supply of the power amplifier of the TV signal plate is 20V, 50V is switched to by 20V by voltage transformation module, is started to described
The power amplifier of TV signal plate is powered；
The TV signal plate initializes power amplifier, and working condition is arranged, and FB_ON is high level, and 50V is normally to institute
State power converter cube reason module for power supply；
The DMD number optical processing technique plate is started to work, the TV signal plate with the DMD number optical processing technique plate it
Between carry out data communication.
The laser television method for controlling power supply, wherein the laser television method for controlling power supply further include:
When system is in full-time AI state or when independent listening state, the TV signal plate is in normal operating conditions, screen
It does not show, FB_ON is set low level by the fan control CPU module, and power converter cube reason module does not provide confession
Electricity, the DMD number optical processing technique plate do not work.
The laser television method for controlling power supply, wherein the laser television method for controlling power supply further include:
When fan due to failure cannot normal or working condition exception when, the fan control CPU module controls MCU_ON, FB_
ON is low level, and the power panel does not provide 50V power supply, and the DMD number optical processing technique plate does not work.
The laser television method for controlling power supply, wherein the laser television method for controlling power supply further include:
After system operation starts, judge whether temperature-controlled fan system works normally, if irregular working, MCU_ON, which is arranged, is
Low level, and return to exceptional value and give TV signal plate；If worked normally, the current working condition of TV signal plate is received,
And judge currently whether enter standby mode, MCU_ON is then set in this way to terminate after low level；As not being to continue to test to be
Whether system is in full-time AI state, and FB_ON is then arranged in this way and is low level and terminates；As not being that FB_ON is arranged as high level
After terminate；
After system energization booting, judge whether system needs to enter standby mode, it is low electricity that PWR_ON and MB_ON is then arranged in this way
It puts down and terminates；As not being PWR_ON to be arranged as high level, and run starting procedure, setting MB_ON is high level, is obtained current
Open state after, terminate after current state is sent to fan control MCU module.
The invention discloses a kind of laser television electric power supply control system and methods, by preferentially opening cooling system, are dissipating
Hot systems are in normal operating conditions, and when operating temperature is in design point around core component, just allow laser television
The core components work such as ray machine, colour wheel, to improve the reliability of laser television protection.
Detailed description of the invention
Fig. 1 is the principle of work and power schematic diagram of laser television electric power supply control system of the present invention；
Fig. 2 is the flow chart of the preferred embodiment of laser television method for controlling power supply of the present invention；
Fig. 3 is that the workflow of fan control CPU module in the preferred embodiment of laser television method for controlling power supply of the present invention is shown
It is intended to；
Fig. 4 is the workflow schematic diagram of TV signal plate in the preferred embodiment of laser television method for controlling power supply of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Laser television electric power supply control system described in present pre-ferred embodiments, as shown in Figure 1, the laser television is powered
Control system includes:
Power management module 1, power converter cube reason module 2 and power conversion module 3, power panel 4, TV signal plate 5, fan control
CPU module 7, DMD number optical processing technique plate 11 and fan 12(fan processed may include it is multiple, example fan 1 as shown in figure 1,
Fan 2, fan 3)；
The power management module 1 be used to provide the described TV signal plate 5 power supply and it is standby, booting lamp state power supply patrol
Collect control；The power converter cube reason module 2 is used to provide the described the confession of DMD number optical processing technique plate 11 and the fan 12
Electricity；The power conversion module 3 is used to provide the described the power supply of fan control CPU module 7；
The fan control CPU module 7 is for controlling multiple fans 12 into normal operating conditions, and operating temperature is in
In normal range (NR), the DMD(Digital Light Processing) digital optical processing technique plate 11 controls ray machine 13 and color
Wheel 14 enters working condition.
Further, the laser television electric power supply control system further include respectively with the power panel 4 and power supply modulus of conversion
The switching circuit 9 that block 3 connects, the switching circuit 9 are used for according to level height control voltage input.
Further, the laser television electric power supply control system further include respectively with the power panel 4, TV signal plate 5
And fan control CPU module 7 connect with logic circuit 8, it is described to export high level or low for controlling with logic circuit 8
Level.
Further, the laser television electric power supply control system further includes the temperature connecting with the fan control CPU module 7
Sensor 6 is spent, the temperature sensor 6 is used to detect the temperature of preset key position, and is sent to the fan control CPU
Module 7；
And the voltage transformation module 10 connecting with the power panel 4, the voltage transformation module 10 are used for the power panel 4
The first voltage value of output is converted to second voltage value.
Wherein, the first voltage value is preferably 50V, and the second voltage value is preferably 12V.
Based on above-mentioned laser television electric power supply control system (Fig. 1), the present invention further correspondingly provides a kind of laser television power supply
Control method, as shown in Fig. 2, the laser television method for controlling power supply the following steps are included:
Step S10, the voltage that the described power conversion module 3 is exported according to the power panel 4 is for the fan control CPU module 7
Power supply；
Step S20, after the described fan control CPU module 7 is powered, multiple fans 12 is controlled and enter normal operating conditions, and
Receive the temperature data that temperature sensor 6 detects；
Step S30, when the fan control CPU module 7 judges that operating temperature is in normal range (NR), at the DMD digital light
Reason technology plate 11 controls ray machine 13 and colour wheel 14 enters working condition.
Purpose is, carries out timing control by powering to laser television, when guaranteeing that fan is in effective working condition,
Permission system ray machine works, to ensure that the stable working environment of laser television core component.
Wherein, the working condition of the power panel 4 is specific as follows: when being provided with alternating current, and when PWR_ON is low level,
The power panel 4 is in underloading high effective model, and only provides 12V power supply, this power supply is supplied to the TV signal plate 5.When
When PWR_ON is high level, being supplied to the 12V that the TV signal plate 5 is powered is normal mode；In the case where PWR_ON is high level,
When MCU_CTR_ON is high level, the power panel 4 is gone back while exporting 50V, is supplied to power amplifier power supply conversion electric power and power supply
Management conversion module 2 is powered, to provide the power supply of off signal processing board.
Further, the specific logic of system is as follows: when system handles standby mode, the power panel 4 is in underloading mould
Formula, the 12V power supply being supplied under the offer light-load mode of power management module 1 of TV signal plate, and power management module 1 uses
It is lightly loaded the DC-DC of high effective model, provides the power supply of the TV signal plate 5 respectively, at this time PWR_ON, MCU_CTR_ON, MCU_
ON, MB_ON are low level.
Specifically, when system enters open state, system starting booting logic, the power management module 1 provides institute
It states power supply, the TV signal plate 5 required for 5 powered operation of TV signal plate and sets high level for PWR_ON, at this time institute
It states the stable 12V that power panel 4 is provided needed for working normally to power, Simultaneous Switching circuit 9 is described when PWR_ON is high level
The input voltage of power conversion module 3 starts to power, and voltage 12V, the power conversion module 3 starts to give fan control CPU
Module 7 is powered, and is controlled the fan 12 and rotated, while being received the temperature sensor 6 and being examined to key position
The temperature of survey
When normal, high level is set by MCU_ON, FB_ON, and the TV signal plate 5 after being high level by PWR_ON, together
When by MB_ON set high level, the input terminal with logic circuit 8 is high level at this time, by and logic circuit 8
MCU_CTR_ON afterwards is also high level, and the power panel 4 starts to export 50V power supply, when described in MCU_CTR_ON state
When the power amplifier power supply of TV signal plate 5 is 20V, the 50V DC-DC for turning 20V is started to institute by the voltage transformation module 10
The power amplifier for stating TV signal plate 5 is powered, and the TV signal plate 5 initializes power amplifier, and working condition is arranged；By
It has been high level in FB_ON at this time, 50V can normally power to power converter cube reason module 2, at the DMD digital light
Reason technology plate 11 is started to work, and the TV signal plate 5 is with carrying out data communication between the DMD number optical processing technique plate 11
(passing through data-signal and control signal).
And when system is in full-time AI state or when independent listening state (screen is closed, and sound continues the state played),
Since the TV signal plate 5 is in normal operating conditions at this time, screen does not need to show, at this time the fan control CPU
FB_ON is set low level by module 7, and power converter cube reason module 2 does not provide power supply at this time, at the DMD digital light
Reason technology plate does not work.
And when system fan due to failure rate cannot be normal when or when working condition exception, the fan control CPU module 7
Controlling MCU_ON, FB_ON is low level, and the power panel 4 does not provide 50V power supply at this time；The DMD number optical processing technique plate
11 do not work, to ensure that booting or workflow, only in the normal situation of temperature control system, ray machine 13 and colour wheel 14 are
Work improves the reliability of the temperature control protection of ray machine 13, colour wheel 14.
Further, as shown in figure 3, the workflow of the fan control CPU module is as follows:
Step S101, system brings into operation；
Step S102, after system operation starts, judge whether temperature-controlled fan system works normally；Step S105 is executed when being,
Step S103 is executed when no；
If step S103, temperature-controlled fan system irregular working, it is low level that MCU_ON, which is arranged,；
Step S104, it returns to exceptional value and gives TV signal plate；
If step S105, temperature-controlled fan system worked well, the current working condition of the TV signal plate is received；
Step S106, whether judgement currently needs to enter standby mode；Step S109 is executed when being, step is executed when no
S107；
Step S107, it continues to test whether system is in full-time AI state, step S110 is executed when being, step is executed when no
S108；
Step S108, setting FB_ON is high level；
Step S109, setting MCU_ON is low level；
Step S110, setting FB_ON is low level；
Step S111, terminate.
Further, as shown in figure 4, the workflow of the TV signal plate is as follows:
Step S201, system energization is switched on；
Step S202, after system energization booting, judge whether system needs to enter standby mode；Step S203 is executed when being,
Step S204 is executed when no;
Step S203, PWR_ON is set, and MB_ON is low level;
Step S204, setting PWR_ON is high level；
Step S205, starting procedure is run；
Step S206, setting MB_ON is high level；
Step S207, current state is sent to fan control MCU module；
Step S208, terminate.
The present invention is by preferentially opening cooling system, and cooling system is in normal operating conditions, and around core component
When operating temperature is in design point, the core components such as the ray machine of laser television are just allowed to work, to improve laser television
The reliability of protection.
In conclusion the present invention provides a kind of laser television electric power supply control system and method, and the system comprises: power supply
Plate, TV signal plate, fan control CPU module, DMD number optical processing technique plate, fan, power management module, power supply conversion
Management module and power conversion module；The power management module be used to provide the described TV signal plate power supply and it is standby,
The logic control of the lamp state that is switched on power supply；The power converter cube reason module is used to provide the described DMD number optical processing technique plate
With the power supply of the fan；The power conversion module is used to provide the described the power supply of fan control CPU module；The fan control
CPU module enters normal operating conditions for controlling multiple fans, and operating temperature is in normal range (NR), the DMD
Digital optical processing technique plate control ray machine and colour wheel enter working condition.The present invention carries out timing control by powering to laser television
System when guaranteeing that fan is in effective working condition, just allows system ray machine and colour wheel to work, to ensure that laser television
Core component is in stable working environment.
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, described program may include the process such as above-mentioned each method embodiment when being executed.
Wherein the storage medium can be 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 (10)
1. a kind of laser television electric power supply control system, which is characterized in that the laser television electric power supply control system includes: power supply
Plate, TV signal plate, fan control CPU module, DMD number optical processing technique plate, fan, power management module, power supply conversion
Management module and power conversion module；
The power management module is used to provide the described the logic of power supply and the standby booting lamp state power supply of TV signal plate
Control；The power converter cube reason module is used to provide the described the power supply of DMD number optical processing technique plate and the fan；It is described
Power conversion module is used to provide the described the power supply of fan control CPU module；
The fan control CPU module enters normal operating conditions for controlling multiple fans, and operating temperature is in just
In normal range, the DMD number optical processing technique plate control ray machine and colour wheel enter working condition.
2. laser television electric power supply control system according to claim 1, which is characterized in that the laser television power supply control
System further includes the switching circuit connecting respectively with the power panel and power conversion module, and the switching circuit is used for according to electricity
Flat height control voltage input.
3. laser television electric power supply control system according to claim 1, which is characterized in that the laser television power supply control
System further include connect respectively with the power panel, TV signal plate and fan control CPU module and logic circuit, it is described
With logic circuit for controlling output high level or low level.
4. laser television electric power supply control system according to claim 1, which is characterized in that the laser television power supply control
System further includes the temperature sensor connecting with the fan control CPU module, and the temperature sensor is preset for detecting
The temperature of key position, and it is sent to the fan control CPU module；
And the voltage transformation module being connect with the power panel, what the voltage transformation module was used to export the power panel
The first voltage value is converted to second voltage value.
5. a kind of laser television power supply control side based on any one of the claim 1-4 laser television electric power supply control system
Method, which is characterized in that the laser television method for controlling power supply includes:
The power conversion module is powered according to the voltage that the power panel exports for the fan control CPU module；
After the fan control CPU module power supply, controls multiple fans and enter normal operating conditions, and receive temperature sensing
The temperature data of device detection；
When the fan control CPU module judges that operating temperature is in normal range (NR), the DMD number optical processing technique plate control
Ray machine and colour wheel processed enter working condition.
6. laser television method for controlling power supply according to claim 5, which is characterized in that the laser television power supply control
Method further include:
When the power panel provides alternating current and PWR_ON is low level, the power panel is in underloading high effective model, and only
12V power supply is provided, and supply object is the TV signal plate；
When PWR_ON is high level, the 12V for being supplied to the TV signal plate power supply is normal mode；
PWR_ON be high level under, and MCU_CTR_ON be high level when, power panel also simultaneously export 50V be supplied to power amplifier confession
Electric conversion electric power and power converter cube manage module for power supply, to provide the power supply of off signal processing board.
7. laser television method for controlling power supply according to claim 6, which is characterized in that the laser television power supply control
Method further include:
When system handles standby mode, the power panel is in light-load mode, and the power management module provides light-load mode
Under 12V give the TV signal plate power supply；
When system enters open state, system starting booting logic, the power management module provides the TV signal plate
Power supply required for powered operation；
PWR_ON is set high level by the TV signal plate, and the power panel provides the stable 12V needed for working normally
Power supply, when PWR_ON is high level, the input voltage of the power conversion module starts to power Simultaneous Switching circuit, and voltage
For 12V；
The power conversion module starts to be powered to the fan control CPU module, and controls fan and rotated, together
When receive temperature sensor and detect the temperature of preset key position；
When temperature is normal, high level is set by MCU_ON and FB_ON, the TV signal plate sets PWR_ON and MB_ON
It is set to high level；
Input terminal with logic circuit is high level, by being also high level with the MCU_CTR_ON after logic circuit, institute
Power panel is stated in MCU_CTR_ON state, starts to export 50V power supply；
When the power supply of the power amplifier of the TV signal plate is 20V, 50V is switched to by 20V by voltage transformation module, is started to described
The power amplifier of TV signal plate is powered；
The TV signal plate initializes power amplifier, and working condition is arranged, and FB_ON is high level, and 50V is normally to institute
State power converter cube reason module for power supply；
The DMD number optical processing technique plate is started to work, the TV signal plate with the DMD number optical processing technique plate it
Between carry out data communication.
8. laser television method for controlling power supply according to claim 7, which is characterized in that the laser television power supply control
Method further include:
When system is in full-time AI state or when independent listening state, the TV signal plate is in normal operating conditions, screen
It does not show, FB_ON is set low level by the fan control CPU module, and power converter cube reason module does not provide confession
Electricity, the DMD number optical processing technique plate do not work.
9. laser television method for controlling power supply according to claim 8, which is characterized in that the laser television power supply control
Method further include:
When fan due to failure cannot normal or working condition exception when, the fan control CPU module controls MCU_ON, FB_
ON is low level, and the power panel does not provide 50V power supply, and the DMD number optical processing technique plate does not work.
10. laser television method for controlling power supply according to claim 9, which is characterized in that the laser television is for automatically controlled
Method processed further include:
After system operation starts, judge whether temperature-controlled fan system works normally, if irregular working, MCU_ON, which is arranged, is
Low level, and return to exceptional value and give TV signal plate；If worked normally, the current working condition of TV signal plate is received,
And judge currently whether enter standby mode, MCU_ON is then set in this way to terminate after low level；As not being to continue to test to be
Whether system is in full-time AI state, and FB_ON is then arranged in this way and is low level and terminates；As not being that FB_ON is arranged as high level
After terminate；
After system energization booting, judge whether system needs to enter standby mode, it is low electricity that PWR_ON and MB_ON is then arranged in this way
It puts down and terminates；As not being PWR_ON to be arranged as high level, and run starting procedure, setting MB_ON is high level, is obtained current
Open state after, terminate after current state is sent to fan control MCU module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111901649A (en) * | 2020-08-13 | 2020-11-06 | 海信视像科技股份有限公司 | Video playing method and display equipment |
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| KR20060071185A (en) * | 2004-12-21 | 2006-06-26 | 주식회사 대우일렉트로닉스 | Apparatus for preventing from overheating of display goods |
| CN101489071A (en) * | 2008-01-15 | 2009-07-22 | 深圳市科创数字显示技术有限公司 | System for preventing optical projection television from abnormal shutdown and implementing method thereof |
| CN201995064U (en) * | 2010-12-27 | 2011-09-28 | 北京牡丹电子集团有限责任公司 | Power supply control circuit of projection television |
| CN105139814A (en) * | 2015-06-05 | 2015-12-09 | 深圳创维－Rgb电子有限公司 | Liquid crystal display and display method thereof |
| CN205160658U (en) * | 2015-11-18 | 2016-04-13 | 创维电子器件（宜春）有限公司 | Constant current drive controlling means and laser television |
| CN105467731A (en) * | 2015-12-16 | 2016-04-06 | 深圳市帅映科技有限公司 | Heat management system of laser projector |
| CN109246401A (en) * | 2017-04-28 | 2019-01-18 | 中航国画（上海）激光显示科技有限公司 | A kind of DLP laser projection system |
| CN108234976A (en) * | 2017-12-29 | 2018-06-29 | 花花猫显示科技有限公司 | Support the DLP Projection Display drive systems of a variety of laser light sources |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111901649A (en) * | 2020-08-13 | 2020-11-06 | 海信视像科技股份有限公司 | Video playing method and display equipment |
| CN111901649B (en) * | 2020-08-13 | 2022-03-25 | 海信视像科技股份有限公司 | Video playing method and display equipment |
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