CN114333683A - System and method for reducing quiescent current of display device - Google Patents
System and method for reducing quiescent current of display device Download PDFInfo
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- CN114333683A CN114333683A CN202210162769.8A CN202210162769A CN114333683A CN 114333683 A CN114333683 A CN 114333683A CN 202210162769 A CN202210162769 A CN 202210162769A CN 114333683 A CN114333683 A CN 114333683A
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Abstract
The invention discloses a system and a method for reducing quiescent current of display equipment, wherein the system comprises a battery, a domain controller and the display equipment; the battery is used for supplying power for the domain controller and the display equipment; the display device comprises a stabilized voltage supply, a micro control unit, a deserializer and a thin film transistor; the domain controller is connected with the display device through the ACC and the LVDS, the ACC is connected with the stabilized voltage power supply, so that the domain controller controls the on and off of the stabilized voltage power supply through the ACC, and the domain controller sends a handshaking signal to the display device through the LVDS. When the display equipment is in the dormant state, the power of the whole display equipment can be completely turned off, and compared with the mode that a Micro Control Unit (MCU) in the prior art always keeps supplying power, the display equipment can effectively reduce the quiescent current when the whole vehicle is in a standby state, further effectively improve the storage time of the whole vehicle and the service life of a storage battery, and save the cost.
Description
Technical Field
The invention relates to the technical field of automobile electric appliances, in particular to a system and a method for reducing quiescent current of display equipment.
Background
At present, the automobile industry develops towards an intelligent direction, intelligent vehicle-mounted equipment in a cockpit is more and more, particularly, the functions of a vehicle-mounted display screen are more and more intelligent, the size of the screen is also more and more large, and better experience is provided for an automobile owner.
The quiescent current is a current when no signal is input, that is, a current consumed by the device itself without being affected by an external factor. Along with the continuous development of automobile intellectualization, display equipment on the automobile is more and more, in order to meet the real-time requirements of users, when the automobile shuts down an engine and electric equipment in the automobile, a door of the automobile is locked, and when a driver does not use the automobile, parts in the automobile such as display equipment such as an on-board display screen and the like keep supplying power for a long time to meet the real-time requirements of the users, the problem that the whole quiescent current rises is brought, the rising of the quiescent current can lead to the shortening of the storage time of the whole automobile and the service life of a storage battery, so that a method capable of reducing the quiescent current of the display equipment is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problems to be solved by the invention are as follows: how to provide a system and a method for reducing quiescent current of display equipment, which can meet the real-time requirements of users and effectively reduce quiescent current of the display equipment so as to effectively improve the storage time of the whole vehicle and the service life of a storage battery.
In order to solve the technical problems, the invention adopts the following technical scheme:
a system for reducing quiescent current of a display device comprises a battery, a domain controller and the display device;
the battery is used for supplying power to the domain controller and the display equipment;
the display device comprises a stabilized voltage power supply, a micro control unit, a deserializer and a thin film transistor, wherein the stabilized voltage power supply is used for supplying power to the micro control unit, the deserializer and the thin film transistor;
the domain controller is connected with the display equipment through a power supply control line and a low-voltage differential signal cable, the power supply control line is connected with the stabilized voltage power supply, so that the domain controller controls the on and off of the stabilized voltage power supply through the power supply control line, and the domain controller sends a handshaking signal to the display equipment through the low-voltage differential signal cable.
The working principle of the invention is as follows: when the system is used, when a driver does not use a vehicle any more so that the system enters a dormant state, the domain controller sends a closing control instruction to the display equipment through the low-voltage differential signal cable, and after the display equipment receives the closing control instruction, the micro control unit closes the deserializer and the thin film transistor; then the stabilized voltage power supply is turned off by the domain controller through a power supply control line, and the stabilized voltage power supply is turned off to further turn off the micro control unit, so that the whole display device including the micro control unit is in a completely power-off state in a sleep state, and therefore no static current exists; when the system is electrified and restarted, the domain controller firstly starts a stabilized voltage power supply through a power supply control line and sends a handshake command to the display equipment through a low-voltage differential signal cable, the micro control unit is started after the stabilized voltage power supply is started, the deserializer and the thin film transistor are further started after the micro control unit is started, and meanwhile, after the micro control unit receives the handshake signal of the domain controller, the start state information of the display equipment is fed back to the domain controller, so that the normal work of the display equipment when the system is electrified and restarted is ensured.
Preferably, the display device further includes a first capacitor, a second capacitor and a diode, one end of the first capacitor is connected to the battery, the other end of the first capacitor is grounded, an anode of the diode is connected to the first capacitor, a cathode of the diode is connected to both the input end of the regulated power supply and one end of the second capacitor, and the other end of the second capacitor is grounded.
Preferably, the display device further includes a backlight circuit, the backlight circuit includes a field effect transistor and a backlight voltage stabilizer, a source of the field effect transistor is connected to the micro control unit, a gate of the field effect transistor is connected between the first capacitor and the diode, a drain of the field effect transistor is connected to an input terminal of the backlight voltage stabilizer, and an output terminal of the backlight voltage stabilizer is connected to a backlight input port of the thin film transistor.
A method for reducing quiescent current of display equipment adopts the system for reducing quiescent current of display equipment, and comprises a system dormancy control method and a system restart control method:
the system sleep control method comprises the following steps:
step 1) the domain controller sends a closing control instruction to the display device through the low-voltage differential signal cable, and the micro control unit closes the deserializer and the thin film transistor;
step 2) the domain controller turns off the stabilized voltage power supply through the power supply control line, and the stabilized voltage power supply turns off the micro control unit;
the control method for restarting the system comprises the following steps:
step A), the domain controller starts the stabilized voltage power supply through the power supply control line and sends a handshake instruction to the display equipment through the low-voltage differential signal cable;
step B), after the stabilized voltage power supply is started, the micro control unit is started;
and step C), the micro control unit starts a deserializer and a thin film transistor, and feeds back the starting state information of the display equipment to the domain controller after receiving the handshake signal of the domain controller.
Preferably, the display device further comprises a first capacitor, a second capacitor and a diode, one end of the first capacitor is connected with the battery, the other end of the first capacitor is grounded, the anode of the diode is connected with the first capacitor, the cathode of the diode is simultaneously connected with the input end of the regulated power supply and one end of the second capacitor, and the other end of the second capacitor is grounded;
when the system is in a sleep state and the battery voltage is 0V, the micro control unit, the deserializer and the thin film transistor continuously work for a first set time length by using the electric quantity of the second capacitor, so that the micro control unit can turn off the deserializer and the thin film transistor.
Preferably, the first set time period is 10 ms.
Therefore, the time length is set to ensure that the micro control unit can effectively close the deserializer and the thin film transistor, and further ensure that the display equipment is completely powered off when in dormancy.
Preferably, the capacitance values of the first capacitor and the second capacitor are both 200-.
Compared with the prior art, the invention has the following advantages:
1. when the display equipment is in the dormant state, the power of the whole display equipment can be completely turned off, and compared with the mode that a Micro Control Unit (MCU) in the prior art always keeps supplying power, the display equipment can effectively reduce the quiescent current when the whole vehicle is in a standby state, further effectively improve the storage time of the whole vehicle and the service life of a storage battery, and save the cost.
2. The invention enables the stabilized voltage power supply in the display equipment through the control signal of the power supply control line on the domain controller, thereby reducing the quiescent current of the whole display equipment and improving the standby time of the automobile battery.
3. The diodes and the capacitors are added to improve the stability of the whole system, voltage fluctuation below millisecond level is filtered, the diodes isolate the voltage-stabilized power supply, after the voltage of the battery drops to 0V instantly, the electric quantity of the second capacitor can keep the normal work of a Micro Control Unit (MCU), so that the micro control unit can process time sequence and upload state, and the power supply of the system is controllable, thereby ensuring the stability of the system during voltage change instantly.
Drawings
FIG. 1 is a system diagram of a system for reducing quiescent current of a display device in accordance with the present invention;
FIG. 2 is a block diagram of the internal connections of the display device in the system for reducing the quiescent current of the display device of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1, a system for reducing quiescent current of a display device includes a battery, a domain controller, and a display device;
the battery is used for supplying power for the domain controller and the display equipment;
as shown in fig. 2, the display device includes a regulated power supply (Regulator 3.3V), a Micro Control Unit (MCU), a Deserializer (Deserializer), and a Thin Film Transistor (TFT), the regulated power supply being 3.3V, the regulated power supply being for supplying power to the micro control unit, the Deserializer, and the thin film transistor;
the domain controller is connected with the display device through a power control line (ACC) and a low voltage differential signal Line (LVDS), the power control line is connected with the stabilized voltage power supply, so that the domain controller controls the stabilized voltage power supply to be turned on and turned off through the power control line, and the domain controller sends a handshake signal to the display device through a low voltage differential signal cable.
The working principle of the invention is as follows: when the system is used, when a driver does not use a vehicle any more so that the system enters a dormant state, the domain controller sends a closing control instruction to the display equipment through the low-voltage differential signal cable, and after the display equipment receives the closing control instruction, the micro control unit closes the deserializer and the thin film transistor; then the stabilized voltage power supply is turned off by the domain controller through a power supply control line, and the stabilized voltage power supply is turned off to further turn off the micro control unit, so that the whole display device including the micro control unit is in a completely power-off state in a sleep state, and therefore no static current exists; when the system is electrified and restarted, the domain controller firstly starts a stabilized voltage power supply through a power supply control line and sends a handshake command to the display equipment through a low-voltage differential signal cable, the micro control unit is started after the stabilized voltage power supply is started, the deserializer and the thin film transistor are further started after the micro control unit is started, and meanwhile, after the micro control unit receives the handshake signal of the domain controller, the start state information of the display equipment is fed back to the domain controller, so that the normal work of the display equipment when the system is electrified and restarted is ensured.
In this embodiment, the display device further includes a first capacitor C1, a second capacitor C2, and a diode D1, wherein one end of the first capacitor C1 is connected to the battery, the other end of the first capacitor C1 is connected to ground, the anode of the diode D1 is connected to the first capacitor C1, the cathode of the diode D1 is connected to both the input terminal of the regulated power supply and one end of the second capacitor C2, and the other end of the second capacitor C2 is connected to ground.
In this embodiment, the display device further includes a backlight circuit, the backlight circuit includes a field effect transistor MOSFET and a backlight Regulator (Regulator BL), a source of the field effect transistor MOSFET is connected to the micro control unit, a gate of the field effect transistor MOSFET is connected between the first capacitor C1 and the diode D1, a drain of the field effect transistor MOSFET is connected to an input terminal of the backlight Regulator (Regulator BL), and an output terminal of the backlight Regulator (Regulator BL) is connected to the backlight input port BL of the thin film transistor.
A method for reducing quiescent current of display equipment adopts the system for reducing quiescent current of display equipment, and comprises a system dormancy control method and a system restart control method:
the system sleep control method comprises the following steps:
step 1) a domain controller sends a closing control instruction to display equipment through a Low Voltage Differential Signaling (LVDS), and a micro control unit closes a Deserializer (Deserializer) and a Thin Film Transistor (TFT);
step 2), the domain controller closes a stabilized voltage power supply through a power control line (ACC), and the stabilized voltage power supply (Regulator 3.3V) closes a Micro Control Unit (MCU);
the control method for restarting the system comprises the following steps:
step A), a domain controller starts a stabilized voltage supply (Regulator 3.3V) through a power supply control line (ACC), and sends a handshake instruction to display equipment through a low voltage differential signaling cable (LVDS);
step B), after a stabilized voltage supply (Regulator 3.3V) is started, a Micro Control Unit (MCU) is started;
and step C), the Micro Control Unit (MCU) starts a Deserializer (Deserializer) and a Thin Film Transistor (TFT), and feeds back the starting state information of the display equipment to the domain controller after receiving the handshake signal of the domain controller.
When the system is in a sleep state and the battery voltage is 0V, the micro control unit, the deserializer and the thin film transistor are continuously operated for a first set time by using the electric quantity of the second capacitor C2, so that the micro control unit can turn off the deserializer and the thin film transistor.
In the present embodiment, the first set time period is 10 ms.
Therefore, the time length is set to ensure that the micro control unit can effectively close the deserializer and the thin film transistor, and further ensure that the display equipment is completely powered off when in dormancy.
In the embodiment, the capacitance values of the first capacitor C1 and the second capacitor C2 are both 200-.
Specifically, as shown in fig. 2, after battery power enters the display device, the battery power supplies power to the backlight through a first capacitor C1, so as to ensure the stability of the power supply below the millisecond level, and then supplies power to a 3.3V regulated power supply after being filtered through a diode D1 and a second capacitor C2, and the regulated power supply supplies power to a Micro Control Unit (MCU), a deserializer chip, and a Thin Film Transistor (TFT). The micro control unit can also start the backlight through a BL _ EN enabling signal; the capacitance value of the first capacitor C1 is about 220uF, and is used for filtering the whole system and filtering power supply fluctuation below millisecond level, and the capacitance value of the second capacitor C2 is about 220uF, is isolated by a diode D1, and is specially used for filtering a 3.3V stabilized voltage power supply.
When the system is dormant and the battery voltage drops to 0V, the domain controller gives an instruction for turning off the display through LVDS, under the action of a diode D1, the electric quantity of a second capacitor C2 cannot be discharged by a backlight circuit, so that the micro control unit, the deserializer and the thin film transistor can work within 10ms, the micro control unit processes a turn-off time sequence at the time, the micro control unit turns off the deserializer and the thin film transistor, and the domain controller turns off a 3.3V stabilized voltage power supply of the display device through an ACC signal of a power control line, so that the aim of reducing the static current is fulfilled; when the display device is electrified again, the domain controller controls the stabilized voltage power supply of the display device to be started through the power supply control line ACC signal, a handshaking signal is sent to the display device through a low voltage differential signal cable (LVDS), after a micro control unit of the display device is electrified, the deserializer and the thin film transistor are started according to time sequence, and after the handshaking signal is received, the handshaking signal is fed back to the domain controller through the low voltage differential signal cable, and information such as brightness is synchronized.
Compared with the prior art, the power supply control method of the display equipment can completely turn off the power of the whole display equipment when the display equipment is in the dormant state, and compared with a mode that a Micro Control Unit (MCU) in the prior art keeps power supply all the time, the power supply control method of the display equipment can effectively reduce quiescent current when a whole vehicle is in a standby state, further effectively improve the storage time of the whole vehicle and the service life of a storage battery, and save cost. The invention enables the stabilized voltage power supply in the display equipment through the control signal of the power supply control line on the domain controller, thereby reducing the quiescent current of the whole display equipment and improving the standby time of the automobile battery. The diodes and the capacitors are added to improve the stability of the whole system, voltage fluctuation below millisecond level is filtered, the diodes isolate the voltage-stabilized power supply, after the voltage of the battery drops to 0V instantly, the electric quantity of the second capacitor can keep the normal work of a Micro Control Unit (MCU), so that the micro control unit can process time sequence and upload state, and the power supply of the system is controllable, thereby ensuring the stability of the system during voltage change instantly.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (7)
1. A system for reducing quiescent current of a display device, comprising a battery, a domain controller and the display device;
the battery is used for supplying power to the domain controller and the display equipment;
the display device comprises a stabilized voltage power supply, a micro control unit, a deserializer and a thin film transistor, wherein the stabilized voltage power supply is used for supplying power to the micro control unit, the deserializer and the thin film transistor;
the domain controller is connected with the display equipment through a power supply control line and a low-voltage differential signal cable, the power supply control line is connected with the stabilized voltage power supply, so that the domain controller controls the on and off of the stabilized voltage power supply through the power supply control line, and the domain controller sends a handshaking signal to the display equipment through the low-voltage differential signal cable.
2. The system for reducing quiescent current of a display device according to claim 1, wherein said display device further comprises a first capacitor, a second capacitor and a diode, one end of said first capacitor is connected to said battery, the other end of said first capacitor is connected to ground, the anode of said diode is connected to said first capacitor, the cathode of said diode is connected to both said input terminal of said regulated power supply and one end of said second capacitor, and the other end of said second capacitor is connected to ground.
3. The system for reducing quiescent current of a display device according to claim 1, wherein said display device further comprises a backlight circuit, said backlight circuit comprising a field effect transistor and a backlight voltage regulator, wherein a source of said field effect transistor is connected to said micro control unit, a gate of said field effect transistor is connected between said first capacitor and said diode, a drain of said field effect transistor is connected to an input of said backlight voltage regulator, and an output of said backlight voltage regulator is connected to a backlight input port of said thin film transistor.
4. A method for reducing quiescent current of a display device, wherein the system for reducing quiescent current of a display device according to claim 1 comprises a system sleep control method and a system restart control method:
the system sleep control method comprises the following steps:
step 1) the domain controller sends a closing control instruction to the display device through the low-voltage differential signal cable, and the micro control unit closes the deserializer and the thin film transistor;
step 2) the domain controller turns off the stabilized voltage power supply through the power supply control line, and the stabilized voltage power supply turns off the micro control unit;
the control method for restarting the system comprises the following steps:
step A), the domain controller starts the stabilized voltage power supply through the power supply control line and sends a handshake instruction to the display equipment through the low-voltage differential signal cable;
step B), after the stabilized voltage power supply is started, the micro control unit is started;
and step C), the micro control unit starts a deserializer and a thin film transistor, and feeds back the starting state information of the display equipment to the domain controller after receiving the handshake signal of the domain controller.
5. The method for reducing the quiescent current of the display device according to claim 4, wherein the display device further comprises a first capacitor, a second capacitor and a diode, wherein one end of the first capacitor is connected to the battery, the other end of the first capacitor is grounded, the anode of the diode is connected to the first capacitor, the cathode of the diode is connected to both the input terminal of the regulated power supply and one end of the second capacitor, and the other end of the second capacitor is grounded;
when the system is in a sleep state and the battery voltage is 0V, the micro control unit, the deserializer and the thin film transistor continuously work for a first set time length by using the electric quantity of the second capacitor, so that the micro control unit can turn off the deserializer and the thin film transistor.
6. The method for reducing the quiescent current of a display device according to claim 5, wherein the first set time period is 10 ms.
7. The method as claimed in claim 6, wherein the capacitance of the first capacitor and the capacitance of the second capacitor are both 200-240 uF.
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| CN202210162769.8A CN114333683B (en) | 2022-02-22 | 2022-02-22 | System and method for reducing static current of display device |
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| CN202210162769.8A CN114333683B (en) | 2022-02-22 | 2022-02-22 | System and method for reducing static current of display device |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6175394B1 (en) * | 1996-12-03 | 2001-01-16 | Chung-Cheng Wu | Capacitively coupled field effect transistors for electrostatic discharge protection in flat panel displays |
| US20070216322A1 (en) * | 2006-03-15 | 2007-09-20 | Pu-Jin Kim | Backlight unit for display device and driving circuit of the same |
| CN202623949U (en) * | 2012-03-09 | 2012-12-26 | 重庆长安汽车股份有限公司 | Car information display |
| CN106347242A (en) * | 2016-09-30 | 2017-01-25 | 惠州市德赛西威汽车电子股份有限公司 | Method for wakening automobile separation entertainment system and device thereof |
| CN109166546A (en) * | 2018-09-30 | 2019-01-08 | 广州小鹏汽车科技有限公司 | A kind of display screen circuit and the middle control screen system including display screen circuit |
| CN208368124U (en) * | 2018-04-28 | 2019-01-11 | 华显光电技术（惠州）有限公司 | backlight circuit and backlight module |
| CN109285509A (en) * | 2018-11-29 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of the display brightness control system and automobile of vehicle-carrying display screen |
| CN110262608A (en) * | 2019-06-27 | 2019-09-20 | 惠州市德赛西威汽车电子股份有限公司 | A kind of circuit reducing display screen quiescent current |
| CN110379377A (en) * | 2019-07-04 | 2019-10-25 | 苏州佳世达电通有限公司 | The display methods and display device that dynamic fuzzy improves and do not flash |
| CN111930040A (en) * | 2020-08-04 | 2020-11-13 | 湖北亿咖通科技有限公司 | Control device and method for vehicle-mounted central control display screen |
| CN212243231U (en) * | 2020-08-04 | 2020-12-29 | 湖北亿咖通科技有限公司 | Control device of vehicle-mounted central control display screen, vehicle-mounted information entertainment system and vehicle |
| CN113192452A (en) * | 2021-04-29 | 2021-07-30 | 惠州市华星光电技术有限公司 | Drive circuit, data drive method and display panel |
-
2022
- 2022-02-22 CN CN202210162769.8A patent/CN114333683B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6175394B1 (en) * | 1996-12-03 | 2001-01-16 | Chung-Cheng Wu | Capacitively coupled field effect transistors for electrostatic discharge protection in flat panel displays |
| US20070216322A1 (en) * | 2006-03-15 | 2007-09-20 | Pu-Jin Kim | Backlight unit for display device and driving circuit of the same |
| CN202623949U (en) * | 2012-03-09 | 2012-12-26 | 重庆长安汽车股份有限公司 | Car information display |
| CN106347242A (en) * | 2016-09-30 | 2017-01-25 | 惠州市德赛西威汽车电子股份有限公司 | Method for wakening automobile separation entertainment system and device thereof |
| CN208368124U (en) * | 2018-04-28 | 2019-01-11 | 华显光电技术（惠州）有限公司 | backlight circuit and backlight module |
| CN109166546A (en) * | 2018-09-30 | 2019-01-08 | 广州小鹏汽车科技有限公司 | A kind of display screen circuit and the middle control screen system including display screen circuit |
| CN109285509A (en) * | 2018-11-29 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of the display brightness control system and automobile of vehicle-carrying display screen |
| CN110262608A (en) * | 2019-06-27 | 2019-09-20 | 惠州市德赛西威汽车电子股份有限公司 | A kind of circuit reducing display screen quiescent current |
| CN110379377A (en) * | 2019-07-04 | 2019-10-25 | 苏州佳世达电通有限公司 | The display methods and display device that dynamic fuzzy improves and do not flash |
| CN111930040A (en) * | 2020-08-04 | 2020-11-13 | 湖北亿咖通科技有限公司 | Control device and method for vehicle-mounted central control display screen |
| CN212243231U (en) * | 2020-08-04 | 2020-12-29 | 湖北亿咖通科技有限公司 | Control device of vehicle-mounted central control display screen, vehicle-mounted information entertainment system and vehicle |
| CN113192452A (en) * | 2021-04-29 | 2021-07-30 | 惠州市华星光电技术有限公司 | Drive circuit, data drive method and display panel |
Non-Patent Citations (1)
| Title |
|---|
| 李贺;: "便携式电源管理――有限空间的无限艺术", 中国电子商情(基础电子), no. 1 * |
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