WO2015070600A1 - 一种供电电路和包括所述供电电路的显示装置 - Google Patents
一种供电电路和包括所述供电电路的显示装置 Download PDFInfo
- Publication number
- WO2015070600A1 WO2015070600A1 PCT/CN2014/079838 CN2014079838W WO2015070600A1 WO 2015070600 A1 WO2015070600 A1 WO 2015070600A1 CN 2014079838 W CN2014079838 W CN 2014079838W WO 2015070600 A1 WO2015070600 A1 WO 2015070600A1
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- WO
- WIPO (PCT)
- Prior art keywords
- module
- power
- transformer
- power supply
- voltage
- Prior art date
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
- G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time
Definitions
- the present invention relates to the field of display technologies, and in particular, to a power supply circuit for supplying power to a display device and a display device including the same.
- TV is not only used to watch TV programs, people can use it to socialize, entertain, search for information, etc., and become the center of family life entertainment, while large-size TVs are watching videos.
- Programs, games, and other aspects have better display effects, especially after the 3D function becomes the standard TV configuration, the 3D effect is more excellent, which is equivalent to moving the excellent audio-visual effects of the 3D IMAX theater.
- This demand for consumers to pay more and more attention to the comfort of their personal space has also promoted the extension of display and color TV manufacturers to the "big" direction.
- the power supply circuit for providing power to the LCD TV main board system and the liquid crystal backlight module needs to provide a larger output power and current matching, so the power supply circuit is relatively complicated, and the number of different working voltages output is smaller than the small size. To ensure that the large-size LCD TV can present a clear and high-quality picture.
- each power board corresponds to a standby module, as shown in FIG. 1; due to too many standby modules, the power consumption of the entire power circuit often exceeds the national standard in the standby mode.
- An aspect of the present invention provides a power supply circuit and a display device for powering a display device, which can reduce the standby power consumption for reducing the power supply circuit and simplify the circuit structure, thereby solving the prior art.
- the problem of large standby power consumption and complicated power supply circuit structure reduces the production cost.
- a power supply circuit for powering a display device, the display device includes a standby module and a plurality of functional modules, and the power supply circuit includes: a power module; a plurality of transformer modules, Receiving a power supply voltage provided by the power module, and converting the power supply voltage into an operating voltage provided to the plurality of functional modules; and a switch module connected between the power supply module and the plurality of transformer modules for Controlling the power module to supply a power voltage to the plurality of transformer modules, wherein the power module directly supplies power to the one standby module, and supplies power to the plurality of function modules through the plurality of transformer modules.
- each of the plurality of transformer modules may further include a boosting unit and at least one transformer output unit; wherein: the boosting unit is connected to the a power module connection, configured to receive a driving voltage from the power module via the switch module, and convert the received boosted power voltage into an operating voltage, and provide the Function modules, and one function module only accepts the operating voltage provided by a transformer output unit.
- the power module may further include a main power board and at least one sub power board and a driving transformer module connected in parallel, and the driving transformer module is connected to the main power board and the a standby module and the plurality of transformer modules are output to the one standby module and each ; a voltage conversion unit ''-' according to another embodiment of the present invention, when the standby module is driven and When the driving voltage of the transformer output unit is different, the power module may further include a first driving transformer module for providing a first driving voltage to the standby module, maintaining the standby module to work normally; A transformer module provides a second driving transformer module of the second driving voltage to maintain the transformer module in normal operation.
- each of the transformer output units may further include a transformer control subunit and a transformer output subunit connected in series with the transformer control subunit; wherein the transformer control subunit is The switch module receives a driving voltage from the main power board for controlling operation of a transformer output subunit connected in series with the variable voltage control subunit; the transformer output subunit is connected to a boosting unit and a variable The voltage control subunit is configured to convert the received filtered boosted power supply voltage into an operating voltage.
- the switch module may further include: a first switch connected between the at least one sub power board of the power module and the boosting unit of the transformer module connected to the sub power board Providing a power supply voltage for controlling the at least one auxiliary power board to a boosting unit of the transformer module connected to the auxiliary power board; a second switch connected to the main power board of the power module and the main power board Between the boosting units of the connected transformer modules, a power supply voltage is provided between the boosting unit for controlling the main power board to the transformer module connected to the main power board; and a third switch is connected to the power module Between the driving transformer module and the transformer output unit of the plurality of transformer modules, the main power board of the power module is controlled to supply a driving voltage to each of the transformer output units.
- the switches may each be a thin film transistor or a relay.
- the switch may also be part of a thin film transistor and the other part is a relay.
- the switch may also be a switching element such as a triode, a switching diode, or a thyristor.
- the thin film transistors when the switches are all thin film transistors, the thin film transistors may be N-type or P-type thin film transistors, which facilitate switching control modules to control the thin film transistors.
- At least one of the plurality of transformer modules may further include a plurality of boost filter modules, and the boost filter module is connected between the boosting unit and the transformer output unit.
- the boosted power supply voltage is filtered, and the filtered boosted power supply voltage is supplied to the transformer output unit.
- At least one of the plurality of transformer modules may further include a plurality of output filter modules, wherein the output filter module is configured to filter an operating voltage outputted by the transformer output unit, and The filtered operating voltage is provided to a functional module of the display device.
- the switch module may further include: a switch control module, configured to control the switch module to be in an on or off state.
- a switch control module configured to control the switch module to be in an on or off state.
- Another aspect of the present invention also provides a display device.
- a display device is provided, the display device including a standby module and a plurality of functional modules, and the power supply circuit according to the present invention described above.
- the sub power supply board since the main power supply board supplies power to the standby module in the standby state in the circuit, the sub power supply board does not supply power in the standby state, thereby reducing standby power consumption of the entire circuit. At the same time, in the standby state, the sub power board does not need to be powered, so there is no need to provide a standby module powered by the sub power board in the circuit, thereby simplifying the structure of the power supply circuit and reducing the production cost of the power supply circuit.
- the switch module is disposed between the power module and the transformer module, and the switch module can control the sub power board in the power module to supply a power voltage to the transformer module connected to the sub power board. This reduces the standby power consumption of the entire circuit. Moreover, in the standby mode, the switch module is disconnected, and the sub power board no longer supplies a power voltage to the transformer module connected to the sub power board, because none of the points connected to the transformer module are The voltage, therefore, is also unlikely to generate leakage current in the transformer module, thereby effectively preventing the generation of leakage current in the transformer module, further reducing the standby power consumption of the power supply circuit.
- FIG. 1 is a schematic structural view of a power supply circuit in the prior art
- FIG. 2 is a structural block diagram of a power supply circuit according to an embodiment of the present invention.
- FIG. 3 is a schematic block diagram showing a detailed structural block diagram of the power supply circuit of FIG. 2;
- FIG. 4 is a schematic structural view of a transformer output unit. detailed description
- Embodiments of the present invention provide a power supply circuit for powering a display device and a display device including the power supply circuit, which are used to reduce the standby power consumption of the power supply circuit and simplify the circuit structure, thereby solving the problem.
- the problem of large standby power consumption and complicated structure of the power supply circuit reduces the production cost.
- Embodiments of the present invention provide a power supply circuit for supplying power to a display device, where the display device includes a standby module and a plurality of functional modules.
- Figure 2 is a block diagram showing the structure of a power supply circuit provided by the embodiment of the present invention.
- the power supply circuit includes: a power module 21; a plurality of transformer modules 23, receiving a power voltage provided by the power module, and converting the power voltage into a plurality of functional modules provided to the display device.
- the standby module supplies power, and supplies power to the plurality of functional modules of the display device through the plurality of transformer modules.
- Fig. 3 is a schematic block diagram showing a detailed block diagram of the power supply circuit of Fig. 2.
- the power module 21 includes a main power board 21 1 , at least one sub power board 212 , and a driving transformer module 213 .
- the main power board 211 and the sub power board 212 are connected in parallel.
- the main power board 211 is configured to supply a power voltage to the transformer module 23 connected to the main power board 211 through the switch module 24, and the transformer module 23 converts the received power voltage into an operating voltage and provides the same to the display device.
- the sub power board 212 is configured to supply a power voltage to the transformer module 23 connected to the sub power board 212 through the switch module 24, and the transformer module 23 converts the received power voltage into an operating voltage and provides the same to the display device. functional module.
- the driving transformer module 213 is connected to the main power board 21 1 for changing the power voltage provided by the main power board 211 into a driving voltage, and directly outputting to the standby module and to the transformer module through the switch module 24 23 provides the drive voltage.
- the drive transformer module 213 converts the power supply voltage into a drive voltage of 5 volts to provide a drive voltage for the standby module and the transformer module.
- Each transformer module 23 is connected to the main power board 211 or to a sub power board 212, and at least one transformer module 23 is connected to a sub power board 212.
- the switch control module 245 is used to control the switches in the switch module 24 to be in an on or off state.
- the switch module 24 is connected between the at least one sub power board 212 and the transformer module 23 connected to the sub power board 212 for controlling the sub power board 212 to supply a power voltage to the transformer module 23, so that It is not necessary to provide a standby module powered by the sub power board 212, thereby reducing the standby power consumption of the entire circuit.
- the switch module 24 is further connected to the main power board 211 and the main power source Between the transformer modules 23 connected to the board 211, the main power board 211 is controlled to supply a power supply voltage to the transformer module 23 connected to the main power board 21 1 so that when the power supply circuit is in the standby state, The switch module 24 is disconnected, and the main power board 211 no longer supplies a power voltage to the transformer module 23 connected to the main power board. Since there is no voltage at each point connected to the transformer module, the change Leakage current is also not generated in the voltage module, thereby effectively preventing the generation of leakage current in the transformer module, further reducing the standby power consumption of the power supply circuit.
- each of the transformer modules 23 includes a boost unit 231 and at least one transformer output unit 232.
- the boosting unit 231 is connected to the power module 21 through the switch module 24, and is configured to output the transformer output voltage from the main power board 21 through the switch module 24 to the received power source. 1 receiving the driving voltage, and converting the received boosted power supply voltage into an operating voltage, and providing the functional module to the display device.
- the boosting unit 231 is used to receive the received
- the transformer output unit 232 converts the received boosted power voltage into an operating voltage and provides a function module to the display device to maintain normal operation of the function module.
- the switch module 24 can include a first switch 241, a second switch 242, a third switch 243, and a switch control module 245.
- the switch control module 245 is configured to control the first switch 241, the second switch 242, and the third switch 243 to be in an on or off state.
- the first switch 241 is connected between the sub power board 212 and the boosting unit 231 connected to the sub power board 212 for controlling the sub power board 212 to the boosting unit 231 connected to the sub power board 212.
- Supply voltage is supplied.
- the second switch 242 is connected between the main power board 211 and the boosting unit 231 connected to the main power board 211 for controlling the main power board 211 to the boosting unit connected to the main power board 21 1 .
- 231 provides the power supply voltage.
- the third switch 243 is connected between the main power board 21 1 and the transformer output unit 232 connected to the main power board 21 1 for controlling the main power board 21 1 to the output transformer unit. 232 provides the drive voltage.
- the switch is a thin film transistor or a relay for controlling the power module 21 to supply power to the functional module of the display device through the transformer module 23; alternatively, the switch may also be a thin film transistor, and One part is a relay.
- the switch may also be a switching element such as a triode, a switching diode, or a thyristor.
- the thin film transistors are N-type or P-type thin film transistors, which facilitates the switching control module 245 to control the thin film transistors.
- the switches are all N-type thin film transistors, and the N-type thin film transistors are turned on when they are at a high level and turned off at a low level.
- the remote controller When the user shuts down by the remote controller, the remote controller issues a standby command to the switch control module 245, and the switch control module 245 generates a low level signal according to the received standby command, and supplies it to each of the thin film transistors, so that each of the A thin film transistor is turned off. Since the power supply voltage cannot be transmitted to the transformer module, the boosting unit in the transformer module is unlikely to generate leakage current, thereby effectively preventing the generation of leakage current in the transformer module, further reducing the standby power of the power supply circuit. Consumption. At the same time, only two signals need to be outputted in the switch control module 245, which simplifies the design of the switch control module 245.
- the driving transformer module may further include a first driving transformer for providing a first driving voltage to the standby module.
- the module maintains the standby module to operate normally; and a second driving transformer module for providing a second driving voltage to each of the transformer output units 232 to maintain the variable voltage output unit 232 to operate normally.
- the transformer module 23 further includes a boost filter module 237, and the boost filter module 237 is connected to the boosting unit 231 and receives the boosted output voltage of the boosted power supply voltage provided by the boosting unit 231.
- the unit 232 is configured to filter the boosted power supply voltage, reduce noise interference in the circuit, and provide the filtered boosted power supply voltage to the variable voltage output unit 232, thereby causing the variable voltage output
- the unit 232 can convert the filtered boosted power supply voltage into an operating voltage and provide the functional module to the display device to maintain normal operation of the functional module.
- the transformer module 23 further includes at least one output filter module 238 connected between the transformer output unit 232 and a function module that receives the operating voltage provided by the transformer output unit 232.
- the working voltage outputted by the variable voltage output unit 232 is filtered to reduce noise interference in the circuit, and the filtered working voltage is supplied to a function module of the display device to maintain normal operation of the function module.
- each of the transformer output units 232 includes a transformer control subunit 2321 and a transformer output subunit 2322 connected in series with the transformer control subunit.
- the transformer control subunit 2321 is connected to the third switch 243, and receives a driving voltage from the driving transformer module 213 for controlling the operation of the transformer output subunit 2322 connected in series with the transformer control subunit 2321. .
- the transformer output sub-unit 2322 is connected to the boost filter module 237 and the transformer control sub-unit 2321 for converting the received filtered boosted power voltage into an operating voltage and providing the voltage conversion
- An output filtering module connected to the output subunit 2322.
- a switch module is disposed between the power module and the transformer module, and is configured to control the sub power board to supply a power voltage to a transformer module connected to the sub power board, and a control unit.
- the main power board supplies a power voltage to the transformer module connected to the main power board and a driving voltage to the transformer output unit connected to the main power board, so that the standby module powered by the sub power board does not need to be set. , thereby reducing the standby power consumption of the entire circuit.
- Embodiments of the present invention also provide a display device including a standby module and a plurality of functional modules and a power supply circuit according to the present invention.
- the embodiments of the present invention provide a power supply circuit for supplying power to a display device and a display device including the power supply circuit.
- the switch module can control a sub power board in the power module to be connected to the sub power board.
- the transformer module provides a power supply voltage, and controls a main power board in the power module to supply a power voltage to a transformer module connected to the main power board and a driving voltage to a transformer output unit connected to the main power board. Therefore, it is not necessary to provide a standby module powered by the sub power supply board in the circuit, thereby reducing the standby power consumption of the entire circuit.
- the switch module in the standby mode, the switch module is disconnected, and since there is no voltage at each point connected to the transformer module, leakage current is unlikely to be generated in the transformer module, thereby effectively preventing the voltage transformation.
- the generation of leakage current in the module further reduces the standby power consumption of the power supply circuit; and at the same time, the power supply is simplified because it is not necessary to provide a standby module powered by the sub power supply board.
- the structure of the circuit reduces the production cost of the power supply circuit. Get rid of the essence and scope of this book. It is intended that the present invention cover the modifications and variations of the present invention.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/408,288 US9640133B2 (en) | 2013-11-15 | 2014-06-13 | Power supply circuit and a display device comprising the power supply circuit |
Applications Claiming Priority (2)
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CN201310574876.2A CN103561221B (zh) | 2013-11-15 | 2013-11-15 | 一种供电电路和显示装置 |
CN201310574876.2 | 2013-11-15 |
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WO2015070600A1 true WO2015070600A1 (zh) | 2015-05-21 |
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PCT/CN2014/079838 WO2015070600A1 (zh) | 2013-11-15 | 2014-06-13 | 一种供电电路和包括所述供电电路的显示装置 |
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US (1) | US9640133B2 (zh) |
CN (1) | CN103561221B (zh) |
WO (1) | WO2015070600A1 (zh) |
Families Citing this family (8)
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CN103561221B (zh) * | 2013-11-15 | 2016-08-17 | 京东方科技集团股份有限公司 | 一种供电电路和显示装置 |
CN105430502B (zh) * | 2014-09-19 | 2019-01-25 | 国家广播电影电视总局广播科学研究院 | 机顶盒远程唤醒方法及系统 |
CN106131466B (zh) * | 2016-08-26 | 2023-07-18 | 合肥惠科金扬科技有限公司 | 一种电视机及其电源板电路 |
CN108123900A (zh) * | 2016-11-30 | 2018-06-05 | 杭州海康威视数字技术股份有限公司 | 以太网交换机及其远距离传输方法 |
CN106792187A (zh) * | 2016-11-30 | 2017-05-31 | 深圳讯飞互动电子有限公司 | 一种智能电视控制方法及系统 |
US10878931B2 (en) * | 2018-09-13 | 2020-12-29 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Gate driver circuit, level shifter, and display apparatus |
CN111245461A (zh) * | 2018-11-13 | 2020-06-05 | Oppo广东移动通信有限公司 | 电子设备 |
CN113839570B (zh) * | 2019-03-12 | 2024-02-06 | 海信视像科技股份有限公司 | 显示装置 |
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- 2013-11-15 CN CN201310574876.2A patent/CN103561221B/zh active Active
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2014
- 2014-06-13 WO PCT/CN2014/079838 patent/WO2015070600A1/zh active Application Filing
- 2014-06-13 US US14/408,288 patent/US9640133B2/en active Active
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JP2000261983A (ja) * | 1999-03-10 | 2000-09-22 | Sony Corp | 電源装置及び電子機器 |
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CN103561221B (zh) | 2016-08-17 |
CN103561221A (zh) | 2014-02-05 |
US9640133B2 (en) | 2017-05-02 |
US20160275901A1 (en) | 2016-09-22 |
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