WO2016026244A1 - 电视机控制电路及电视机 - Google Patents

电视机控制电路及电视机 Download PDF

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Publication number
WO2016026244A1
WO2016026244A1 PCT/CN2014/093780 CN2014093780W WO2016026244A1 WO 2016026244 A1 WO2016026244 A1 WO 2016026244A1 CN 2014093780 W CN2014093780 W CN 2014093780W WO 2016026244 A1 WO2016026244 A1 WO 2016026244A1
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WO
WIPO (PCT)
Prior art keywords
board
power supply
power
control
resistor
Prior art date
Application number
PCT/CN2014/093780
Other languages
English (en)
French (fr)
Inventor
舒相成
Original Assignee
深圳Tcl新技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Priority to US15/037,324 priority Critical patent/US9654722B2/en
Priority to EP14900304.8A priority patent/EP3185542B1/en
Publication of WO2016026244A1 publication Critical patent/WO2016026244A1/zh

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Classifications

    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42201—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] biosensors, e.g. heat sensor for presence detection, EEG sensors or any limb activity sensors worn by the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4432—Powering on the client, e.g. bootstrap loading using setup parameters being stored locally or received from the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to a television control circuit and a television set.
  • the existing TV sets are not enough to save energy, because the current TV set does not actively turn off the TV when the user leaves the TV, the TV display will always play TV programs (if The user has something to leave temporarily or while doing other things while listening to the TV program. In this case, the TV only emits the program sound, the display does not need to work at all, and the display of the TV is the consumption of the TV. Larger households (for example, a 100W LED TV set consumes about 60% of the power consumption of the entire TV during normal operation), so if the user does not turn off the TV when leaving the TV Will cause a lot of power to be wasted.
  • the main object of the present invention is to automatically control the power supply state of the television display screen according to the detection result of the user characteristic information in front of the television, thereby achieving the purpose of energy saving.
  • the present invention provides a television control circuit
  • the television control circuit includes a display screen, a power board, a human body detection module, and a main board, wherein the power board and the power input end of the main board respectively The power input end of the display screen is connected; the detection output end of the human body detection module is connected to the detection input end of the main board; and the control output end of the main board is connected to the power supply board and the display screen;
  • the mainboard controls whether the display screen is turned on or off according to whether the human body detecting module detects whether a user watches the television.
  • the display screen comprises a driving board and a timing control board; a power input end of the driving board is connected to the power board; and a power input end of the timing board is connected to the main board.
  • the main board includes a main control chip, a first power control circuit for controlling a power supply state of the timing control board, and a second power control circuit for controlling a power supply state of the driving board;
  • the detection input end of the main control chip is connected to the detection output end of the human body detection module, and the control output end of the main control chip is respectively connected to the control input end of the first power supply control circuit and the second power supply control a control input end of the circuit is connected; a control output end of the first power control circuit is connected to a power input end of the timing control board; and a control output end of the second power control circuit is connected to a control end of the power supply board .
  • the first power control circuit includes a power supply input terminal, a power supply control input terminal, a power supply control output terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, and a second Capacitor, MOS tube and triode; among them,
  • the first end of the second resistor is the power supply control input end, the power supply control input end is connected to the main control chip, and the second end of the second resistor is connected to the base of the triode a first end of the third resistor is connected to a base of the triode, a second end of the third resistor is grounded; the first capacitor is connected in parallel with the third resistor; and an emitter of the triode is The fourth resistor is grounded; the emitter of the triode is further connected to the power supply control output via the second capacitor, and the power supply control output is connected to the power input end of the timing control board; a first end of the first resistor is connected to the input end of the power supply, a second end of the first resistor is connected to a collector of the transistor; a source of the MOS tube is connected to the input end of the power supply The drain of the MOS transistor is connected to the power supply control output terminal, and the gate of the MOS transistor is connected to the collector of the transistor.
  • the MOS transistor is a PMOS transistor, and the triode is an NPN transistor.
  • the second power control circuit includes a fifth resistor; a first end of the fifth resistor is connected to the main control chip, and a second end of the fifth resistor is connected to a control end of the power board .
  • the human body detecting module is a shooting module.
  • the human body detecting module is an infrared detecting module.
  • the television control circuit further includes a speaker for emitting a television sound, and the speaker is connected to the main board.
  • the present invention further provides a television set including a television control circuit, the television control circuit including a display screen, a power board, a human body detecting module, and a main board, wherein the power source The board is respectively connected to the power input end of the main board and the power input end of the display screen; the detection output end of the human body detecting module is connected to the detecting input end of the main board; the control output end of the main board and the The power board and the display screen are connected; the main board controls whether the display screen is turned on or off according to whether the human body detecting module detects whether a user watches the television.
  • the television control circuit including a display screen, a power board, a human body detecting module, and a main board, wherein the power source The board is respectively connected to the power input end of the main board and the power input end of the display screen; the detection output end of the human body detecting module is connected to the detecting input end of the main board; the control output end of the main board and the The power board and the display screen are connected;
  • the television control circuit provided by the invention comprises a display screen, a power board, a human body detecting module and a main board, wherein the power board is respectively connected with the power input end of the main board and the power input end of the display screen; the detecting output end of the human body detecting module is The detection input end of the main board is connected; the control output end of the main board is connected with the power supply board and the display screen; the main board controls whether the display of the television is turned on or off according to the detection result of the human body detection module.
  • the main board in the television control circuit of the invention can automatically control the power supply state of the television display screen according to the detection result of the human body detection module on the characteristic information of the user in front of the television, thereby achieving energy saving purposes.
  • the television control circuit of the present invention has the advantages of simple structure and easy implementation.
  • FIG. 1 is a block diagram showing the structure of an embodiment of a television control circuit of the present invention
  • FIG. 2 is a schematic diagram showing the circuit structure of a first power control circuit and a second power control circuit in an embodiment of the television control circuit of the present invention.
  • Fig. 1 is a block diagram showing the structure of an embodiment of a television control circuit of the present invention.
  • the television control circuit includes a power board 101, a display screen 102, a human body detecting module 103, a main board 104, and a speaker 105.
  • the power board 101 is configured to provide power supply for the television control circuit of the present invention, including power supply to the display screen 102 and power supply to the main board 104;
  • the display 102 is for displaying a television program.
  • the display screen 102 includes a driving board 1021 for driving a backlight module (not shown) for driving the display screen 102 and a T-CON board 1022 for controlling display operation of the display screen 102 (the T-CON board is also called a timing control board). );
  • the human body detecting module 103 is configured to detect user characteristic information in front of the television.
  • the user feature information detected by the human body detecting module 103 may be an image signal or an infrared signal.
  • the human body detecting module 103 is a shooting module.
  • a camera or the like is not limited herein; when the user feature information detected by the human body detecting module 103 is an infrared signal, the human body detecting module 103 is an infrared detecting module.
  • the human body detecting module 103 is a shooting module, the shooting module takes a picture of the user in front of the television.
  • the shooting module outputs a detection signal (such as Outputting a low level signal to the main board 104 to notify the main board 104 to control the display screen 102 to be powered off, so that the display screen 102 does not work;
  • a detection signal such as Outputting a low level signal to the main board 104 to notify the main board 104 to control the display screen 102 to be powered off, so that the display screen 102 does not work;
  • the human body detecting module 103 is an infrared detecting module
  • the infrared detecting module detects the infrared signal of the user.
  • the infrared detection module cannot detect the infrared signal of the user, and the infrared detection module outputs a detection signal (such as outputting a low level signal) ) to the main board 104 to notify the main board 104 to control the display screen 102 to be powered off, and to close the display screen 102;
  • the main board 104 is configured to control the power supply state of the power board 101 to the driving board 1021 in the display screen 102 according to the detection result of the human body detecting module 103, and control the power supply state of the main board 104 to the T-CON board 1022 in the display screen 102.
  • the main board 104 includes a main control chip 1041, a first power control circuit 1042 for controlling the power supply state of the main board 104 to the T-CON board 1022, and a second power supply control circuit 1043 for controlling the power supply state of the power board 101 to the driving board 1021.
  • the main control chip 1041 in this embodiment detects whether there is a detection result of the user watching the television according to the human body detecting module 103, and outputs corresponding control signals to the first power control circuit 1042 and the second power control circuit 1043, respectively, and is controlled by the first power source.
  • the circuit 1042 controls the power supply state of the main board 104 to the T-CON board 1022 in the display screen 102, and controls the power supply state of the power board 101 to the driving board 1021 in the display screen 102 through the second power control circuit 1043, thereby implementing the control display screen 102 to be turned on. Or closed;
  • the speaker 105 is used to emit a television sound.
  • the power board 101 is respectively connected to the power input end of the main board 104 and the power input end of the display screen 102 to provide power supply for the main board 104 and the display screen 102; the detection output end of the human body detecting module 103 and the detecting input end of the main board 104
  • the detection input end of the main control chip 1041 is the detection input end of the main board 104.
  • the detection output end of the human body detection module 103 is connected to the detection input end of the main control chip 1041 of the main board 104.
  • the control output of the main board 104 is connected to the power board 101 and the display screen 102.
  • control output end of the main control chip 1041 of the main board 104 is the control output end of the main board 104, and the control output ends of the main control chip 1041 are respectively Connected to the control input of the first power control circuit 1042 and the control input of the second power control circuit 1043; the control output of the first power control circuit 1042 is connected to the power input of the T-CON board 1022; the second power control The control output of the circuit 1043 is connected to the control terminal of the power board 101; the speaker 105 is connected to the main board 104.
  • the working principle of the television control circuit of the present invention is specifically described as follows: when the human body detecting module 103 does not detect the user characteristic information (indicating that no user watches the television program before the television at this time), the human body detecting module 103 outputs a corresponding detecting signal (eg, Outputting a low level to the main control chip 1041 in the main board 104, the main control chip 1041 outputs a corresponding control signal (such as outputting a low level) to the second power control circuit 1043 according to the detection result of the human body detecting module 103.
  • a corresponding detecting signal eg, Outputting a low level to the main control chip 1041 in the main board 104
  • the main control chip 1041 outputs a corresponding control signal (such as outputting a low level) to the second power control circuit 1043 according to the detection result of the human body detecting module 103.
  • the main control chip 1041 To cut off the power supply of the power board 101 to the driving board 1021 in the display screen 102, then the main control chip 1041 outputs a control signal (such as outputting a low level) to the first power control circuit 1042 to cut off the main board 104 to the display screen.
  • a control signal such as outputting a low level
  • the driving board 1021 When the power supply of the power board 101 to the driving board 1021 in the display screen 102 is cut off, the driving board 1021 is de-energized, and the operation is stopped, thereby turning off the backlight; when the power supply of the T-CON board 1022 in the display screen 102 is cut off by the main board 104, T- The CON board 1022 stops working, so that the display screen 102 stops working, that is, the television set only plays the television program sound through the speaker 105, and the display screen 102 does not display the television program;
  • the human body detecting module 103 When the human body detecting module 103 detects the characteristic information of the user (indicating that the user is watching the television program in front of the television at this time), the human body detecting module 103 outputs a corresponding detecting signal (such as outputting a high level) to the main body in the main board 104.
  • the control chip 1041, the main control chip 1041 outputs a corresponding control signal (such as outputting a high level) to the first power control circuit 1042 according to the detection result of the human body detecting module 103, to restore the main board 104 to the T-CON in the display 102.
  • a control signal such as outputting a high level
  • the television control circuit provided in this embodiment includes a display screen, a power board for providing a power supply, a human body detection module for detecting characteristic information of a user in front of the television, and a detection result according to the human body detection module.
  • a motherboard for controlling the power supply state of the display; the power board is respectively connected to the power input end of the main board and the power input end of the display screen; the detection output end of the human body detecting module is connected to the detecting input end of the main board; the control output end of the main board and the power board and The display is connected.
  • the main board in the television control circuit of the embodiment can automatically control the power supply state of the television display screen according to the detection result of the human body detection module on the characteristic information of the user in front of the television, thereby achieving energy saving purposes.
  • the television control circuit of the present invention has the advantages of simple structure and easy implementation.
  • FIG. 2 is a schematic diagram showing the circuit structure of a first power control circuit and a second power control circuit in an embodiment of the television control circuit of the present invention.
  • the first power control circuit 1042 includes a power supply input terminal VCC, a power supply control input terminal T-CON_ON/OFF, a power supply control output terminal T-CON_VCC, and a first resistor.
  • the first end of the second resistor R2 is the power supply control input terminal T-CON_ON/OFF of the first power control circuit 1042, and the power supply control input terminal T-CON_ON/OFF is connected to the main control chip 1041 of FIG.
  • the second end of the second resistor R2 is connected to the base of the transistor Q2; the first end of the third resistor R3 is connected to the base of the transistor Q2, and the second end of the third resistor R3 is grounded; the first capacitor C1 and the third resistor R3 is connected in parallel; the emitter of the transistor Q2 is grounded via the fourth resistor R4; the emitter of the transistor Q2 is also connected to the power supply control output terminal T-CON_VCC via the second capacitor C2, and the power supply control output terminal T-CON_VCC is shown in FIG.
  • the power input terminal of the T-CON board 1022 is connected to the screen 102; the first end of the first resistor R1 is connected to the power supply input terminal VCC, the second end of the first resistor R1 is connected to the collector of the transistor Q2; and the MOS transistor Q1 is The source is connected to the power supply input terminal VCC, the drain of the MOS transistor Q1 is connected to the power supply control output terminal T-CON_VCC, and the gate of the MOS transistor Q1 is connected to the collector of the transistor Q2.
  • the MOS transistor Q1 is a PMOS transistor
  • the triode Q2 is an NPN transistor.
  • the second power control circuit 1043 includes a control input terminal BL_ON/OFF, a fifth resistor R5, and a control output terminal BL_ON (PANEL).
  • the first end of the fifth resistor R5 is connected to the control input end BL_ON/OFF, the control input end BL_ON/OFF is connected to the main control chip 1041, and the second end of the fifth resistor R5 is connected to the control output end BL_ON (PANEL).
  • the control output terminal BL_ON (PANEL) is connected to the control terminal of the power board 101.
  • the human body detecting module 103 when the human body detecting module 103 does not detect the user characteristic information (indicating that no user watches the television program before the television at this time), the human body detecting module 103 outputs a corresponding detection signal (such as outputting a low level) to the main board.
  • the main control chip 1041 of the 104 the main control chip 1041 outputs a low level to the input end of the second power control circuit 1043 according to the received detection signal, that is, the output end of the second power control circuit 1043 is also output.
  • a low level signal when the control terminal of the power board 101 receives the low level signal output by the second power control circuit 1043, the power board 101 stops supplying power to the driving board 1021 in the display screen 102, and the driving board 1021 loses power.
  • the main control chip 1041 outputs a low level to the power supply control input terminal T-CON_ON/OFF of the first power control circuit, so that the NPN transistor Q2 is turned off, and thus the PMOS transistor Q1 is turned off, thereby
  • the power supply of the power supply input terminal VCC cannot be output to the power supply control output terminal T-CON_VCC (ie, the power supply of the main board 104 to the T-CON board 1022 of the display screen 102 is cut off), so that the display is performed.
  • the power failure of the T-CON board 1022 in the screen 102 does not work, so that the display screen 102 does not work;
  • the human body detecting module 103 When the human body detecting module 103 detects the characteristic information of the user (indicating that the user is watching the television program in front of the television at this time), the human body detecting module 103 outputs a corresponding detecting signal (such as outputting a high level) to the main body in the main board 104.
  • the control chip 1041, the main control chip 1041 outputs a high level (also referred to as the power-on high level of the T-CON board 1022) to the power supply control input terminal T of the first power control circuit according to the received detection result.
  • the main control chip 1041 then outputs a high level signal (also referred to as the power-on high level of the driving board 1021) to the control input end of the second power control circuit 1043, that is, the second power control circuit at this time.
  • the control output of 1043 also outputs a high level signal.
  • the control terminal of the power board 101 receives the high level signal output by the second power control circuit 1043, the power board 101 resumes the driving board 1021 of the display screen 102.
  • the driving board 1021 is powered on, the backlight is turned on, so that the display screen 102 resumes normal operation.
  • the third resistor R3 shunts the power-on high level, and the second resistor R2 and the first capacitor C1 are formed.
  • the RC circuit acts as a filter and delay, so that the base current of the NPN transistor Q2 is reasonable, and the base current of the NPN transistor Q2 does not change too fast; the feedback of the second capacitor C2 and the fourth resistor R4
  • the circuit and the RC circuit composed of the second resistor R2 and the first capacitor C1 work together to ensure that the collector current of the NPN transistor Q2 changes gently; in addition, the power supply input terminal VCC passes through the first resistor R1 and the fourth resistor R4.
  • the gate of the PMOS transistor Q1 of the switch provides a reference voltage, so that the gate-to-source voltage VGS of the PMOS transistor Q1 is greater than the turn-on threshold voltage of the PMOS transistor Q1, thereby ensuring that the PMOS transistor Q1 can be turned on. Therefore, the first power control circuit 1042 in this embodiment can meet the power-on timing requirement of the T-CON board 1022 in the display screen 102 (the specific power-on timing requirement of the T-CON board 1022 belongs to the prior art, and is no longer here. Brief description).
  • the present invention also provides a television set, which includes a television control circuit.
  • the module structure and circuit structure of the television control circuit can be referred to the above embodiments, and details are not described herein.
  • the television set of the embodiment adopts the technical solution of the above-described television control circuit, the television set has all the beneficial effects of the above-described television control circuit.

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Abstract

本发明公开了一种电视机控制电路，该电视机控制电路包括显示屏、电源板、人体检测模块、主板，其中，电源板分别与主板的电源输入端及显示屏的电源输入端连接；人体检测模块的检测输出端与主板的检测输入端连接；主板的控制输出端与电源板及显示屏连接；主板根据人体检测模块检测是否有用户观看电视的检测结果控制显示屏的开启或关闭。本发明还公开了一种电视机。本发明电视机控制电路中的主板能够根据人体检测模块对电视机前用户的特征信息的检测结果，自动控制电视机显示屏的供电状态，从而实现节能目的。

Description

电视机控制电路及电视机
技术领域
本发明涉及电子技术领域，特别涉及一种电视机控制电路及电视机。
背景技术
目前，由于人们愈来愈追求节能和环保，崇尚低碳生活，因此，人们对电视机产品也提出了更高的节能要求。然而，现有的电视机在节省能效方面还做的不够，因为现在的电视机在用户离开电视机的时候若不主动关闭电视机，则该电视机的显示屏就会一直播放电视节目（假如用户有事情暂时离开或一边做其他事情一边听电视节目，在这种情况下，电视机只发出节目声音即可，其显示屏根本不需要工作），而电视机的显示屏是电视机的耗能大户（例如，一台100W的LED电视机，正常工作时，其显示屏所消耗的功耗约占整个电视机功耗的60%），因此，当用户离开电视机时若不关闭电视机，则将导致大量的电能浪费。
实用新型内容
本发明的主要目的是根据对电视机前用户特征信息的检测结果，自动控制电视机显示屏的供电状态，从而实现节能的目的。
为实现上述目的，本发明提供一种电视机控制电路，所述电视机控制电路包括显示屏、电源板、人体检测模块、主板，其中，所述电源板分别与所述主板的电源输入端及所述显示屏的电源输入端连接；所述人体检测模块的检测输出端与所述主板的检测输入端连接；所述主板的控制输出端与所述电源板及所述显示屏连接；所述主板根据所述人体检测模块检测是否有用户观看电视的检测结果控制所述显示屏的开启或关闭。
优选地，所述显示屏包括驱动板和时序控制板；所述驱动板的电源输入端与所述电源板连接；所述时序控制板的电源输入端与所述主板连接。
优选地，所述主板包括主控芯片、用于控制所述时序控制板供电状态的第一电源控制电路、以及用于控制所述驱动板供电状态的第二电源控制电路；其中，
所述主控芯片的检测输入端与所述人体检测模块的检测输出端连接，所述主控芯片的控制输出端分别与所述第一电源控制电路的控制输入端及所述第二电源控制电路的控制输入端连接；所述第一电源控制电路的控制输出端与所述时序控制板的电源输入端连接；所述第二电源控制电路的控制输出端与所述电源板的控制端连接。
优选地，所述第一电源控制电路包括供电电源输入端、供电电源控制输入端、供电电源控制输出端、第一电阻、第二电阻、第三电阻、第四电阻、第一电容、第二电容、MOS管及三极管；其中，
所述第二电阻的第一端为所述供电电源控制输入端，所述供电电源控制输入端与所述主控芯片连接，所述第二电阻的第二端与所述三极管的基极连接；所述第三电阻的第一端与所述三极管的基极连接，所述第三电阻的第二端接地；所述第一电容与所述第三电阻并联；所述三极管的发射极经所述第四电阻接地；所述三极管的发射极还经所述第二电容与所述供电电源控制输出端连接，所述供电电源控制输出端与所述时序控制板的电源输入端连接；所述第一电阻的第一端与所述供电电源输入端连接，所述第一电阻的第二端与所述三极管的集电极连接；所述MOS管的源极与所述供电电源输入端连接，所述MOS管的漏极与所述供电电源控制输出端连接，所述MOS管的栅极与所述三极管的集电极连接。
优选地，所述MOS管为PMOS管，所述三极管为NPN三极管。
优选地，所述第二电源控制电路包括第五电阻；所述第五电阻的第一端与所述主控芯片连接，所述第五电阻的第二端与所述电源板的控制端连接。
优选地，所述人体检测模块为拍摄模块。
优选地，所述人体检测模块为红外检测模块。
优选地，所述电视机控制电路还包括用于发出电视声音的喇叭，所述喇叭与所述主板连接。
此外，为实现上述目的，本发明还提供一种电视机，所述电视机包括电视机控制电路，所述电视机控制电路包括显示屏、电源板、人体检测模块、主板，其中，所述电源板分别与所述主板的电源输入端及所述显示屏的电源输入端连接；所述人体检测模块的检测输出端与所述主板的检测输入端连接；所述主板的控制输出端与所述电源板及所述显示屏连接；所述主板根据所述人体检测模块检测是否有用户观看电视的检测结果控制所述显示屏的开启或关闭。
本发明提供的电视机控制电路，包括显示屏、电源板、人体检测模块、主板，其中，电源板分别与主板的电源输入端及显示屏的电源输入端连接；人体检测模块的检测输出端与主板的检测输入端连接；主板的控制输出端与电源板及显示屏连接；主板根据人体检测模块检测是否有用户观看电视的检测结果控制显示屏的开启或关闭。本发明电视机控制电路中的主板能够根据人体检测模块对电视机前用户的特征信息的检测结果，自动控制电视机显示屏的供电状态，从而实现节能目的。并且，本发明电视机控制电路还具有结构简单及易实现的优点。
附图说明
图1是本发明电视机控制电路一实施例的模块结构示意图；
图2是本发明电视机控制电路一实施例中第一电源控制电路和第二电源控制电路的电路结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参照图1，图1是本发明电视机控制电路一实施例的模块结构示意图。
该电视机控制电路包括电源板101、显示屏102、人体检测模块103、主板104及喇叭105。
其中，电源板101，用于为本发明电视机控制电路提供供电电源，包括对显示屏102的供电和对主板104的供电；
显示屏102，用于显示电视节目。显示屏102包括用于驱动显示屏102的背光模组（图未示）工作的驱动板1021和用于控制显示屏102的显示工作的T-CON板1022（T-CON板也称时序控制板）；
人体检测模块103，用于对电视机前的用户特征信息进行检测。本实施例中，人体检测模块103检测的用户特征信息可以是图像信号，也可以是红外信号，当人体检测模块103检测的用户特征信息是图像信号时，则该人体检测模块103为拍摄模块，例如摄像头等，此处对此不作限制；当人体检测模块103检测的用户特征信息是红外信号时，则该人体检测模块103为红外检测模块。本实施例中，当人体检测模块103为拍摄模块时，拍摄模块对电视机前的用户进行拍照，若用户不在电视机前时，则拍摄不到用户，此时拍摄模块输出一检测信号（如输出一低电平信号）至主板104，以通知主板104控制显示屏102断电，使显示屏102不工作；当人体检测模块103为红外检测模块时，红外检测模块对用户的红外信号进行检测，若用户不在电视机前（或用户与电视机的距离超过一定值时），则红外检测模块检测不到用户的红外信号，此时红外检测模块输出一检测信号（如输出一低电平信号）至主板104，以通知主板104控制显示屏102断电，关闭显示屏102；
主板104，用于根据人体检测模块103的检测结果，控制电源板101对显示屏102中驱动板1021的供电状态，以及控制主板104对显示屏102中T-CON板1022的供电状态。主板104包括主控芯片1041、用于控制主板104对T-CON板1022供电状态的第一电源控制电路1042、以及用于控制电源板101对驱动板1021的供电状态的第二电源控制电路1043。本实施例中的主控芯片1041根据人体检测模块103检测是否有用户观看电视的检测结果，分别输出相应的控制信号至第一电源控制电路1042和第二电源控制电路1043，通过第一电源控制电路1042控制主板104对显示屏102中T-CON板1022的供电状态，通过第二电源控制电路1043控制电源板101对显示屏102中驱动板1021的供电状态，从而实现控制显示屏102的开启或关闭；
喇叭105，用于发出电视声音。
具体地，电源板101分别与主板104的电源输入端及显示屏102的电源输入端连接，为主板104及显示屏102提供供电电源；人体检测模块103的检测输出端与主板104的检测输入端连接，本实施例中，主控芯片1041的检测输入端为主板104的检测输入端，即本实施例中，人体检测模块103的检测输出端与主板104中主控芯片1041的检测输入端连接；主板104的控制输出端与电源板101及显示屏102连接，本实施例中，主板104中主控芯片1041的控制输出端为主板104的控制输出端，主控芯片1041的控制输出端分别与第一电源控制电路1042的控制输入端及第二电源控制电路1043的控制输入端连接；第一电源控制电路1042的控制输出端与T-CON板1022的电源输入端连接；第二电源控制电路1043的控制输出端与电源板101的控制端连接；喇叭105与主板104连接。
本发明电视机控制电路的工作原理具体描述如下：当人体检测模块103检测不到用户特征信息时（说明此时电视机前无用户观看电视节目），人体检测模块103输出相应的检测信号（如输出一低电平）至主板104中的主控芯片1041，主控芯片1041根据人体检测模块103的检测结果，输出相应的控制信号（如输出一低电平）至第二电源控制电路1043，以切断电源板101对显示屏102中驱动板1021的供电，然后，主控芯片1041再输出一控制信号（如输出一低电平）至第一电源控制电路1042，以切断主板104对显示屏102中T-CON板1022的供电。当切断电源板101对显示屏102中驱动板1021的供电时，驱动板1021失电，停止工作，从而关闭背光；当切断主板104对显示屏102中T-CON板1022的供电时，T-CON板1022停止工作，使得显示屏102停止工作，即此时电视机只通过喇叭105播放电视节目声音，显示屏102不显示电视节目；
当人体检测模块103检测到用户的特征信息时（说明此时电视机前有用户在观看电视节目），人体检测模块103输出相应的检测信号（如输出一高电平）至主板104中的主控芯片1041，主控芯片1041根据人体检测模块103的检测结果，输出相应的控制信号（如输出一高电平）至第一电源控制电路1042，以恢复主板104对显示屏102中T-CON板1022的供电，然后，主控芯片1041再输出一控制信号（如输出一高电平）至第二电源控制电路1043，以恢复电源板101对显示屏102中驱动板1021的供电，打开背光，使得显示屏102重新恢复正常工作。
本实施例提供的电视机控制电路，包括显示屏、用于提供供电电源的电源板、用于对电视机前用户的特征信息进行检测的人体检测模块、以及用于根据人体检测模块的检测结果控制显示屏供电状态的主板；电源板分别与主板的电源输入端及显示屏的电源输入端连接；人体检测模块的检测输出端与主板的检测输入端连接；主板的控制输出端与电源板及显示屏连接。本实施例电视机控制电路中的主板能够根据人体检测模块对电视机前用户的特征信息的检测结果，自动控制电视机显示屏的供电状态，从而实现节能目的。并且，本发明电视机控制电路还具有结构简单及易实现的优点。
图2是本发明电视机控制电路一实施例中第一电源控制电路和第二电源控制电路的电路结构示意图。
一并参照图1和图2，本实施例中，第一电源控制电路1042包括供电电源输入端VCC、供电电源控制输入端T-CON_ON/OFF、供电电源控制输出端T-CON_VCC、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第一电容C1、第二电容C2、MOS管Q1及三极管Q2。
具体地，第二电阻R2的第一端为第一电源控制电路1042的供电电源控制输入端T-CON_ON/OFF，供电电源控制输入端T-CON_ON/OFF与图1中主控芯片1041连接，第二电阻R2的第二端与三极管Q2的基极连接；第三电阻R3的第一端与三极管Q2的基极连接，第三电阻R3的第二端接地；第一电容C1与第三电阻R3并联；三极管Q2的发射极经第四电阻R4接地；三极管Q2的发射极还经第二电容C2与供电电源控制输出端T-CON_VCC连接，供电电源控制输出端T-CON_VCC与图1中显示屏102中T-CON板1022的电源输入端连接；第一电阻R1的第一端与供电电源输入端VCC连接，第一电阻R1的第二端与三极管Q2的集电极连接；MOS管Q1的源极与供电电源输入端VCC连接，MOS管Q1的漏极与供电电源控制输出端T-CON_VCC连接，MOS管Q1的栅极与三极管Q2的集电极连接。本实施例中，MOS管Q1为PMOS管，三极管Q2为NPN三极管。
本实施例中，第二电源控制电路1043包括控制输入端BL_ON/OFF、第五电阻R5及控制输出端BL_ON（PANEL）。其中，第五电阻R5的第一端与控制输入端BL_ON/OFF连接，控制输入端BL_ON/OFF与主控芯片1041连接，第五电阻R5的第二端与控制输出端BL_ON（PANEL）连接，控制输出端BL_ON（PANEL）与电源板101的控制端连接。
本实施例中，当人体检测模块103检测不到用户特征信息时（说明此时电视机前无用户观看电视节目），人体检测模块103输出相应的检测信号（如输出一低电平）至主板104中的主控芯片1041，主控芯片1041根据接收到的该检测信号，输出一低电平至第二电源控制电路1043的输入端，即此时第二电源控制电路1043的输出端也输出一低电平信号，当电源板101的控制端接收到第二电源控制电路1043输出的该低电平信号时，电源板101停止对显示屏102中驱动板1021的供电，驱动板1021失电不工作，从而关闭背光；然后，主控芯片1041再输出一低电平至第一电源控制电路的供电电源控制输入端T-CON_ON/OFF，使得NPN三极管Q2截止，进而PMOS管Q1截止，从而使得供电电源输入端VCC的电源不能输出至供电电源控制输出端T-CON_VCC（即切断了主板104对显示屏102中T-CON板1022的供电），使得显示屏102中T-CON板1022失电不工作，使得显示屏102不工作；
当人体检测模块103检测到用户的特征信息时（说明此时电视机前有用户在观看电视节目），人体检测模块103输出相应的检测信号（如输出一高电平）至主板104中的主控芯片1041，主控芯片1041根据接收到的该检测结果，输出一高电平（也称为T-CON板1022的上电高电平）至第一电源控制电路的供电电源控制输入端T-CON_ON/OFF，使得NPN三极管Q2导通，进而PMOS管Q1导通，从而使得供电电源输入端VCC的电源输出至供电电源控制输出端T-CON_VCC，使得显示屏102中T-CON板1022上电工作；然后，主控芯片1041再输出一高电平信号（也称为驱动板1021的上电高电平）至第二电源控制电路1043的控制输入端，即此时第二电源控制电路1043的控制输出端也输出一高电平信号，当电源板101的控制端接收到第二电源控制电路1043输出的该高电平信号时，电源板101恢复对显示屏102中驱动板1021的供电，驱动板1021上电工作，打开背光，使得显示屏102重新恢复正常工作。
并且，本实施例中，当供电电源控制输入端T-CON_ON/OFF输入上电高电平时，第三电阻R3对该上电高电平进行分流，第二电阻R2和第一电容C1组成的RC电路，起滤波和延时作用，使得NPN三极管Q2的基极电流的大小合理，并且使得NPN三极管Q2的基极电流的变化不会太快；第二电容C2和第四电阻R4组成的反馈电路以及第二电阻R2和第一电容C1组成的RC电路一同作用保证NPN三极管Q2的集电极电流的变化是平缓的；另外，供电电源输入端VCC通过第一电阻R1和第四电阻R4为作开关作用的PMOS管Q1的栅极提供基准电压，使PMOS管Q1的栅源极电压VGS大于PMOS管Q1的开启阀值电压，从而保证PMOS管Q1能够导通。因此，本实施例中的第一电源控制电路1042能够满足显示屏102中T-CON板1022的上电时序要求（T-CON板1022的具体上电时序要求属于现有技术，此处不再赘述）。
本发明还提供一种电视机，该电视机包括电视机控制电路，该电视机控制电路的模块结构及电路结构可参照上述实施例，在此不再赘述。理所应当地，由于本实施例的电视机采用了上述电视机控制电路的技术方案，因此该电视机具有上述电视机控制电路所有的有益效果。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种电视机控制电路，其特征在于，包括显示屏、电源板、人体检测模块、主板，其中，所述电源板分别与所述主板的电源输入端及所述显示屏的电源输入端连接；所述人体检测模块的检测输出端与所述主板的检测输入端连接；所述主板的控制输出端与所述电源板及所述显示屏连接；所述主板根据所述人体检测模块检测是否有用户观看电视的检测结果控制所述显示屏的开启或关闭。
  2. 如权利要求1所述的电视机控制电路，其特征在于，所述显示屏包括驱动板和时序控制板；所述驱动板的电源输入端与所述电源板连接；所述时序控制板的电源输入端与所述主板连接。
  3. 如权利要求2所述的电视机控制电路，其特征在于，所述主板包括主控芯片、用于控制所述时序控制板供电状态的第一电源控制电路、以及用于控制所述驱动板供电状态的第二电源控制电路；其中，
    所述主控芯片的检测输入端与所述人体检测模块的检测输出端连接，所述主控芯片的控制输出端分别与所述第一电源控制电路的控制输入端及所述第二电源控制电路的控制输入端连接；所述第一电源控制电路的控制输出端与所述时序控制板的电源输入端连接；所述第二电源控制电路的控制输出端与所述电源板的控制端连接。
  4. 如权利要求3所述的电视机控制电路，其特征在于，所述第一电源控制电路包括供电电源输入端、供电电源控制输入端、供电电源控制输出端、第一电阻、第二电阻、第三电阻、第四电阻、第一电容、第二电容、MOS管及三极管；其中，
    所述第二电阻的第一端为所述供电电源控制输入端，所述供电电源控制输入端与所述主控芯片连接，所述第二电阻的第二端与所述三极管的基极连接；所述第三电阻的第一端与所述三极管的基极连接，所述第三电阻的第二端接地；所述第一电容与所述第三电阻并联；所述三极管的发射极经所述第四电阻接地；所述三极管的发射极还经所述第二电容与所述供电电源控制输出端连接，所述供电电源控制输出端与所述时序控制板的电源输入端连接；所述第一电阻的第一端与所述供电电源输入端连接，所述第一电阻的第二端与所述三极管的集电极连接；所述MOS管的源极与所述供电电源输入端连接，所述MOS管的漏极与所述供电电源控制输出端连接，所述MOS管的栅极与所述三极管的集电极连接。
  5. 如权利要求4所述的电视机控制电路，其特征在于，所述MOS管为PMOS管，所述三极管为NPN三极管。
  6. 如权利要求5所述的电视机控制电路，其特征在于，所述第二电源控制电路包括第五电阻；所述第五电阻的第一端与所述主控芯片连接，所述第五电阻的第二端与所述电源板的控制端连接。
  7. 如权利要求1所述的电视机控制电路，其特征在于，所述人体检测模块为拍摄模块。
  8. 如权利要求1所述的电视机控制电路，其特征在于，所述人体检测模块为红外检测模块。
  9. 如权利要求1所述的电视机控制电路，其特征在于，所述电视机控制电路还包括用于发出电视声音的喇叭，所述喇叭与所述主板连接。
  10. 一种电视机，其特征在于，所述电视机包括电视机控制电路，所述电视机控制电路包括显示屏、电源板、人体检测模块、主板，其中，所述电源板分别与所述主板的电源输入端及所述显示屏的电源输入端连接；所述人体检测模块的检测输出端与所述主板的检测输入端连接；所述主板的控制输出端与所述电源板及所述显示屏连接；所述主板根据所述人体检测模块检测是否有用户观看电视的检测结果控制所述显示屏的开启或关闭。
  11. 如权利要求10所述的电视机，其特征在于，所述显示屏包括驱动板和时序控制板；所述驱动板的电源输入端与所述电源板连接；所述时序控制板的电源输入端与所述主板连接。
  12. 如权利要求11所述的电视机，其特征在于，所述主板包括主控芯片、用于控制所述时序控制板供电状态的第一电源控制电路、以及用于控制所述驱动板供电状态的第二电源控制电路；其中，
    所述主控芯片的检测输入端与所述人体检测模块的检测输出端连接，所述主控芯片的控制输出端分别与所述第一电源控制电路的控制输入端及所述第二电源控制电路的控制输入端连接；所述第一电源控制电路的控制输出端与所述时序控制板的电源输入端连接；所述第二电源控制电路的控制输出端与所述电源板的控制端连接。
  13. 如权利要求12所述的电视机，其特征在于，所述第一电源控制电路包括供电电源输入端、供电电源控制输入端、供电电源控制输出端、第一电阻、第二电阻、第三电阻、第四电阻、第一电容、第二电容、MOS管及三极管；其中，
    所述第二电阻的第一端为所述供电电源控制输入端，所述供电电源控制输入端与所述主控芯片连接，所述第二电阻的第二端与所述三极管的基极连接；所述第三电阻的第一端与所述三极管的基极连接，所述第三电阻的第二端接地；所述第一电容与所述第三电阻并联；所述三极管的发射极经所述第四电阻接地；所述三极管的发射极还经所述第二电容与所述供电电源控制输出端连接，所述供电电源控制输出端与所述时序控制板的电源输入端连接；所述第一电阻的第一端与所述供电电源输入端连接，所述第一电阻的第二端与所述三极管的集电极连接；所述MOS管的源极与所述供电电源输入端连接，所述MOS管的漏极与所述供电电源控制输出端连接，所述MOS管的栅极与所述三极管的集电极连接。
  14. 如权利要求13所述的电视机，其特征在于，所述MOS管为PMOS管，所述三极管为NPN三极管。
  15. 如权利要求14所述的电视机，其特征在于，所述第二电源控制电路包括第五电阻；所述第五电阻的第一端与所述主控芯片连接，所述第五电阻的第二端与所述电源板的控制端连接。
  16. 如权利要求10所述的电视机，其特征在于，所述人体检测模块为拍摄模块。
  17. 如权利要求10所述的电视机，其特征在于，所述人体检测模块为红外检测模块。
  18. 如权利要求10所述的电视机，其特征在于，所述电视机控制电路还包括用于发出电视声音的喇叭，所述喇叭与所述主板连接。
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