CN102292760A - System for controlling light emission of television - Google Patents
System for controlling light emission of television Download PDFInfo
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- CN102292760A CN102292760A CN200980155404.5A CN200980155404A CN102292760A CN 102292760 A CN102292760 A CN 102292760A CN 200980155404 A CN200980155404 A CN 200980155404A CN 102292760 A CN102292760 A CN 102292760A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42202—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
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- 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
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
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Abstract
A system for controlling light emission of a LCD or OLED TV includes an infrared assembly with Fresnel lens (105) for detecting human presence in front of a TV within a predetermined detection angle and a power control circuit (107) electrically connected to the infrared assembly with Fresnel lens (105), the TV's power supply (103) and a backlight module (101) or an OLED assembly. The power control circuit (107) includes a power switch (137), a comparator circuit (127) and a signal amplifier (117). The infrared assembly with Fresnel lens (105) transmits a first signal to the power control circuit (107) when human presence is detected, and transmits a second signal to the power control circuit (107) when no human presence is detected. The power control circuit (107) allows power to be transmitted from the power supply (103) to the backlight module (101) or the OLED assembly when the first signal is received and disallow power to be transmitted from the power supply (103) to the backlight module (101) or the OLED assembly when the second signal is received.
Description
Technical field
Present patent application relates generally to the control system of TV, more specifically, relates to and is used for controlling automatically the luminous system of TV.
Background technology
Non-TV based on CRT (cathode-ray tube (CRT)) (TV) for example LCD (LCDs) TV and OLED (Organic Light Emitting Diode) TV becomes now and becomes more and more popular.LCD TV generally includes and is used to provide the backlight module of luminous user to TV with display image.This backlight module generally includes a plurality of CCFL (cold-cathode fluorescence lamp) or LED (light emitting diode) as light source.Be in operation, the most of electric power that is expended by LCD TV is to be expended by backlight module.In OLED TV, electric current flows through the luminous organic compound in the OLED display screen, thus luminous and displayable image.The brightness of display screen is by the size decision of this electric current.The power that the OLED display screen expends is the major part of the general power that expends of OLED TV, and is also directly related with this electric current.
Under multiple situation, TV user may leave TV a period of time, normally moves and stay the TV display screen.When the user left, in fact the TV display screen did not use, and has wasted by the backlight module of LCD TV or by the luminous power that expends of the current start of OLED display screen.In addition, in this time period, under the multiple situation, though health not before TV and can not really watch TV, the user may still wish to hear the audio frequency output of TV.For example, the user may work in the kitchen, listens to the news program of the TV broadcast that is placed in the parlor simultaneously.In addition, when the user got back to TV temporarily after leaving before, generally preferably the user can continue to watch TV, need not TV is made any adjusting.
Summary of the invention
Present patent application relates to a kind of luminous system of TV that is used to control.On the one hand, described TV has backlight module and power supply, described system comprises infrared light inductive component that has situation that is used for the described TV forefathers of detection in the predetermined detection angle and the power control circuit that is electrically connected with the backlight module of described infrared light inductive component, described TV power and described TV.Described infrared light inductive component is configured to send first signal when someone exists to described power control circuit detecting, and sends secondary signal to described power control circuit when not detecting the someone and exist.Described power control circuit is configured to allow electric power from described power delivery to described backlight module when receiving described first signal, and does not allow electric power from described power delivery to described backlight module when receiving described secondary signal.
In one embodiment, described backlight module comprises at least one cold-cathode fluorescence lamp.
In another embodiment, described backlight module comprises a plurality of light emitting diodes.
On the other hand, described TV has Organic Light Emitting Diode (OLED) assembly and power supply, described system comprises the infrared light inductive component that has situation that is used in the predetermined detection angle detecting described TV forefathers, the power control circuit that is connected with OLED electrical component with described infrared light inductive component, described TV power and described TV.Described infrared light inductive component is configured to send first signal when someone exists to described power control circuit detecting, and sends secondary signal to described power control circuit when not detecting the someone and exist.Described power control circuit is configured to allow electric power from described power delivery to described OLDE assembly when receiving described first signal, and when receiving described secondary signal, do not allow electric power from described power delivery to described OLED assembly.
Description of drawings
Referring now to the mode of accompanying drawing by embodiment disclosed embodiment in the present patent application is described, in the accompanying drawing:
Fig. 1 is the functional block diagram that is used to control the luminous system of TV according to the embodiment of present patent application;
Fig. 2 A has the TV of system shown in Figure 1 and the preceding user's of TV top view;
Fig. 2 B is TV shown in Fig. 2 A and user's a side view;
Fig. 3 is an electrical schematic diagram of realizing the circuit of system shown in Figure 1; With
Fig. 4 is the functional block diagram that is used to control the luminous system of TV according to another embodiment of present patent application.
Embodiment
Describe the embodiment that is used to control the luminous system of TV of present patent application now in detail, below also provide embodiment in the explanation.Though describe the disclosed illustrative embodiments that is used to control the luminous system of TV of present patent application in detail, but various equivalent modifications be it is evident that, for succinct purpose may be not shown some understanding is used to control the luminous system of TV is not the feature of particular importance.
In addition, should be appreciated that present patent application is disclosed and be used to control the luminous system of TV and be not limited to following embodiment that those skilled in the art can make multiple variation and change to it and not depart from the spirit or scope of protection.For example, in the scope of the present disclosure, but the key element of different illustrated embodiment and/or feature combination with one another and/or alternative each other.
Fig. 1 is the functional block diagram that is used to control the luminous system of TV according to the embodiment of present patent application.With reference to Fig. 1, TV comprises backlight module 101 and power supply 103.In this embodiment, TV is LCD TV.This system comprises infrared light inductive component 105 and power control circuit 107.Power control circuit 107 is connected electrically between power supply 103 and the backlight module 101, and is configured to control the electric power that is supplied to backlight module 101.Power control circuit 107 also is electrically connected with infrared light inductive component 105, and controlled by it.
Fig. 2 A has the TV of the system in this embodiment and the preceding user's of TV top view.Fig. 2 B is TV shown in Fig. 2 A and user's a side view.Ruddiness is responded to Fresnel lens and the long pass filter that assembly 105 comprises infrared light transducer[sensor, encapsulation infrared light transducer[sensor outward, and this long pass filter is arranged on the Fresnel lens and between infrared light transducer[sensor and Fresnel lens.With reference to Fig. 2 A and 2B, in this embodiment, infrared light induction module 105 is installed in the top of TV or the centre of bottom shadow shield.Should be appreciated that the particular location of infrared light inductive component 105 on TV can be depending on the concrete Art Design of TV.In the time of before people user 109 appears at TV, the infrared light that user 109 sends can be detected by infrared light inductive component 105.The clothing human body and send the interior infrared light of 6 μ m-12 mum wavelength scopes usually.Long pass filter weakens short wavelength, and by the longer wavelength greater than 5 μ m-7 μ m spectrum, the infrared light that only allows human body to send passes through basically.Should be appreciated that herein long logical light filter also can be arranged on the side of Fresnel lens away from infrared light transducer[sensor in order to realize identical filter effect.Infrared light inductive component 105 outstanding positive cambers (outside curvature) to be exposed to Fresnel lens, thus can realize wide relatively detection angles.For guaranteeing
AccurateReally detect people's the situation that exists, curvature by suitable adjusting Fresnel lens is adjusted to the TV viewing angle that is equal to or greater than expection with the detection angles of infrared light inductive component 105, thereby, will detect his or her existence if there is anyone watching TV really.
See Fig. 1 back, power control circuit 107 comprises signal amplifier 117, comparator circuit 127 and power switch 137, and they all are electrically connected with power supply 103 and by its energy supply.Comparator circuit 127 is electrically connected with signal amplifier 117 and power switch 137.Power switch 137 is electrically connected with backlight module 101.When having the people to exist when infrared light sensing component 105 detects TV in detection angles before, infrared light inductive component 105 sends first voltage signal to signal amplifier 117.Signal amplifier 117 is configured to amplify first voltage signal, and output has the amplifying signal of greater strength to comparator circuit 127.Comparator circuit 127 is configured to the amplifying signal and the prearranged signals that are received from signal amplifier 117 are made comparisons, and generates first digital signal according to comparative result.In this embodiment, first digital signal is " 1 ".Power switch is configured to connect power supply and backlight module after receiving first digital signal, makes electric power be transferred to backlight module 101 from power supply 103, and user 109 can normally watch TV.At this moment, if user 109 leaves TV, infrared light inductive component 105 does not have anyone to exist detect TV in detection angles before, and then infrared light inductive component 105 is configured to transmit second voltage signal to signal amplifier 117.Signal amplifier 117 is configured to amplify second voltage signal, and output has the amplifying signal of greater strength to comparator circuit 127.Comparator circuit 127 is configured to the amplifying signal and the above-mentioned prearranged signals that are received from signal amplifier 117 are made comparisons, and generates second digital signal according to comparative result.In this embodiment, second digital signal is " 0 ".Power switch is configured to being connected of after receiving second digital signal deenergization and backlight module, thereby power supply 103 stops to supply with electric power to backlight module 101, and backlight is closed.Therefore, saved the electric power that backlight module 101 expends automatically.
Should be noted that when when infrared light sensing component 105 does not detect TV in detection angles before, having anyone to exist, backlight closing, other function of TV for example voice playing is still being worked.TV still receives same channel, and has the identical setting as before, for example audio volume level, frame parameter etc.This is because though power supply 103 stops to backlight module 101 supply powers, power supply 103 is still to all other component feeding power of TV.If user 109 returns to watch TV now, and sensed by infrared light inductive component 105, backlight module 101 will connect power supply 103 once more so, backlightly will recover open mode.The transformation of backlight module 101 different conditions is instant basically.In this whole process, user 109 does not need TV is done any adjusting, just can make backlight closing with the saving electric power when he leaves, and recovery backlight is opened, and enjoys watching of TV to leave preceding on all four identical the setting with him.
Fig. 3 is the electrical schematic diagram of circuit of realizing the system of this embodiment.With reference to Fig. 3, when having the people to exist when infrared light sensing component 105 detects TV in detection angles before, infrared light inductive component 105 sends first voltage signal to intelligent backlight circuit 106.Intelligence backlight circuit 106 is equivalent to signal amplifier 117 and the comparator circuit 127 among Fig. 1 and combines their function.After first voltage signal being amplified and amplifying signal and prearranged signals made comparisons, the output port of intelligent backlight circuit 106 " CTL " and " DET " export digital signal respectively, for example high " 1 " of presentation logic." CTL " port connects playback switch 108, and it can be subjected to the control of digital signal and the electric current of control inflow transformer 110.Transformer 110 connects backlight controller 111 and at least one cold-cathode fluorescence lamp (CCFL) 112.Backlight controller is connected with the power supply (Fig. 3 is not shown) of TV.CCFL 112 is essential light-emitting components of the backlight module of this embodiment, is configured to when energising luminous.In this embodiment, there are a plurality of CCFL.Because " CTL " port of intelligent backlight circuit 106 is exported " 1 " now,, allow electric power to pass through backlight controller 111 and transformer 110 from the power delivery to CCFL 112 then so playback switch 108 is opened to allow electric current inflow transformer 110.Thereby when before in detection angles, detecting TV, having the people to exist, backlight module is switched on.
When having anyone to exist when infrared light sensing component 105 does not detect TV in detection angles before, infrared light inductive component 105 sends second voltage signal to intelligent backlight circuit 106.After second voltage signal being amplified and amplifying signal and prearranged signals made comparisons, the output port of intelligent backlight circuit " CTL " and " DET " export digital signal respectively, for example low " 0 " of presentation logic.Because " CTL " port of intelligent backlight circuit 106 is exported " 0 " now,, do not allow electric power to pass through backlight controller 111 and transformer 110 from the power delivery to CCFL 112 then so playback switch 108 is closed with blocking-up electric current inflow transformer 110.Thereby when before in detection angles, not detecting TV, having the people to exist, backlight module is cut off the power supply.
With reference to Fig. 3, when electric power is supplied to CCFL 112, cross the electric current of CCFL at " SENSE " of backlight controller 111 port monitoring stream.When this electric current is in normal condition, from the high digital signal " 1 " of " FAULT " port output presentation logic of backlight controller 111.When this electric current is undesired, from the low digital signal " 0 " of " FAULT " port output presentation logic of backlight controller 111.The circuit of Fig. 3 comprises also and door 113 that it has two input ports that are connected with " FAULT " port of " DET " port of intelligent backlight circuit 106 and backlight controller 111 respectively, and the output port of connection LCD microprocessor.The LCD microprocessor is configured to cut out backlight controller 111 when the output with door 113 is " 0 ", opens backlight controller 111 when the output with door 113 is " 1 ".When backlight controller 111 is closed, there are not electric current or electric power to be supplied to transformer 110 or CCFL 112 by backlight controller 111.
Be the operation of illustrative system better, suppose in the detection angles of initial user 109 before TV, and detected by infrared light inductive component 105, thus " DET " port of intelligent backlight circuit 106 output " 1 ".If it is normal to flow through the electric current of CCFL 112, " FAULT " port of backlight controller 111 output " 1 " so.Therefore, with the output port of door 113 are " 1 ", thereby backlight controller 111 continues to open.Consider two kinds of plots now:
(1) user 109 leaves the zone that can be sensed by infrared light inductive component 105.In this case, " DET " port of intelligent backlight circuit 106 output " 0 ".As mentioned above, this will close playback switch 108, thus transformer 110 can transmission electric power to CCFL 112.In addition, the electric current that flows through CCFL 112 dies down because transformer 110 quits work now and unusually, thereby " FAULT " port of backlight controller 111 is exported " 0 ", thus with the output of door 113 are " 0 ".As a result, the LCD microprocessor will cut out backlight controller 111, thereby power supply will disconnect with transformer 110.Because the access path between power supply and the CCFL 112 disconnects at backlight controller 111 and transformer 110 places, so closed the CCFL 112 of backlight module.
(2) user 109 still can be detected by infrared light inductive component 105, but CCFL 112 is owing to for example certain lamp stops operate as normal because of reaching reasons such as its life-span breaking-up.In this case, the electric current that flows through CCFL 112 is undesired, for example significantly dies down, and makes " FAULT " port of backlight controller 111 export " 0 ", and therefore the output with door 113 is " 0 ".As a result, the LCD microprocessor cuts out backlight controller 111, thereby power supply and transformer 110 disconnect.Therefore, when certain CCFL 112 malfunction, all other CCFL 112 also close.
In this embodiment, the backlight module 101 of Fig. 1 is the CCFL backlight modules that comprise a plurality of CCFL.Should be appreciated that backlight module 101 can be other type, for example comprise LED (light emitting diode) backlight module of a plurality of LED that are used to provide backlight.In this case, all said apparatus and analysis stand good except the LED-backlit module, and the transformer 110 of Fig. 3 drives a plurality of LED and replaces a plurality of CCFL as backlight.
Fig. 4 is the functional block diagram that is used to control the luminous system of TV according to another embodiment of present patent application.In this embodiment, TV has OLED (Organic Light Emitting Diode) display screen.With reference to Fig. 4, the OLED display screen does not have backlight module.On the contrary, the brightness of OLED display screen is by the Current Control of the luminous organic compound in the OLED assembly 201 that flows through display screen, and this electric current is further by the driving voltage control that applies between the anode 231 of OLED assembly 201 and negative electrode 233.Therefore, be used to control the luminous system of OLED TV in this embodiment and above-mentioned to be used to control the luminous system of LCD TV substantially the same, except in this embodiment, power switch 237 is configured to connect or deenergization 203 and OLED assembly 201 according to the digital signal of control power switch 237.Be to be understood that, realize in the circuit of system at this embodiment, the driving port of CCFL 112 among Fig. 3 and should connect anode 231 and negative electrode 233 respectively, thus the electric power that is supplied to OLED assembly 201 can be subjected to the control of this system, and this electric power decision OLED TV's is luminous.
Though specifically show and present patent application be described, should be appreciated that and to make multiple other variation or change and do not depart from scope of the present invention with reference to its a plurality of embodiments.
Claims (20)
1. one kind is used to control the luminous system of TV, and described TV has backlight module and power supply, and described system comprises:
Be used in the predetermined detection angle, detecting described TV forefathers' the infrared light inductive component that has situation; With
The power control circuit that is electrically connected with the backlight module of described infrared light inductive component, described TV power and described TV; Wherein,
Described infrared light inductive component is configured to send first signal when someone exists to described power control circuit detecting, and when not detecting the someone and exist, send secondary signal to described power control circuit, described power control circuit is configured to allow electric power from described power delivery to described backlight module when receiving described first signal, and does not allow electric power from described power delivery to described backlight module when receiving described secondary signal.
2. system according to claim 1, wherein, the described power control circuit comparator circuit that comprises the signal amplifier that is used to amplify the signal that is received from described infrared light inductive component, be used for amplifying signal is made comparisons with prearranged signals and generate digital signal according to comparative result be used to receive digital signal that generates by described comparator circuit and the power switch that is connected or disconnects the backlight module of described power supply and described TV according to described digital signal.
3. system according to claim 1, wherein, described infrared light inductive component comprises the Fresnel lens and the long pass filter of infrared light transducer[sensor, the described infrared light transducer[sensor of encapsulation, and this long pass filter is arranged on the described Fresnel lens and between described infrared light transducer[sensor and described Fresnel lens.
4. system according to claim 3, wherein, described long pass filter weakens shorter wavelength, and by the longer wavelength greater than 5 μ m-7 μ m spectrum.
5. system according to claim 3, wherein, described infrared light inductive component is outstanding to be exposed to the positive camber of described Fresnel lens, and the predetermined detection angle of described infrared light inductive component is equal to or greater than the television-viewing angle of expection.
6. system according to claim 1, wherein, when not allowing electric power from described power delivery to described backlight module after described power control circuit is receiving described first signal, described power supply continues to supply with electric power to described TV all elements except that described backlight module.
7. system according to claim 2, wherein, described power switch comprises the playback switch that is connected with transformer with described comparator circuit, described transformer is controlled by described playback switch, and being configured between described power supply and described backlight module, set up the connection that is used for power delivery, described playback switch is configured to allow or do not allow this connection according to the digital signal that is generated by described comparator circuit.
8. system according to claim 2, wherein, described power switch comprises microprocessor, described microprocessor is connected with described comparator circuit, and is configured to allow or do not allow to be used between described power supply and the described backlight module according to the digital signal that is generated by described comparator circuit the connection of power delivery.
9. system according to claim 8, wherein, described power switch also comprise be used to carry out the digital signal that generates by described comparator circuit and the described backlight module of expression whether the digital signal of operate as normal the logical and operation with door, the result of described logical and operation exports described microprocessor to.
10. system according to claim 1, wherein, described backlight module comprises at least one cold-cathode fluorescence lamp.
11. system according to claim 1, wherein, described backlight module comprises a plurality of light emitting diodes.
12. one kind is used to control the luminous system of TV, described TV has Organic Light Emitting Diode (OLED) assembly and power supply, and described system comprises:
Be used in the predetermined detection angle, detecting described TV forefathers' the infrared light inductive component that has situation; With
The power control circuit that is connected with the OLED electrical component of described infrared light inductive component, described TV power and described TV; Wherein:
Described infrared light inductive component is configured to send first signal when someone exists to described power control circuit detecting, and when not detecting the someone and exist, send secondary signal to described power control circuit, described power control circuit is configured to allow electric power from described power delivery to described OLED assembly when receiving described first signal, and does not allow electric power from described power delivery to described OLED assembly when receiving described secondary signal.
13. system according to claim 12, wherein, the described power control circuit comparator circuit that comprises the signal amplifier that is used to amplify the signal that is received from described infrared light inductive component, be used for amplifying signal is made comparisons with prearranged signals and generate digital signal according to comparative result be used to receive digital signal that generates by described comparator circuit and the power switch that is connected or disconnects the OLED assembly of described power supply and described TV according to described digital signal.
14. system according to claim 12, wherein, described infrared light inductive component comprises the Fresnel lens and the long pass filter of infrared light transducer[sensor, the described infrared light transducer[sensor of encapsulation, and this long pass filter is arranged on the described Fresnel lens and between described infrared light transducer[sensor and described Fresnel lens.
15. system according to claim 14, wherein, described long pass filter weakens shorter wavelength, and by the longer wavelength greater than 5 μ m-7 μ m spectrum.
16. system according to claim 14, wherein, described infrared light inductive component is outstanding to be exposed to the positive camber of described Fresnel lens, and the predetermined detection angle of described infrared light inductive component is equal to or greater than the television-viewing angle of expection.
17. system according to claim 12, wherein, when not allowing electric power from described power delivery to described OLED assembly after described power control circuit is receiving described first signal, described power supply continues to supply with electric power to described TV all elements except that described OLED assembly.
18. system according to claim 13, wherein, described power switch comprises the playback switch that is connected with transformer with described comparator circuit, described transformer is controlled by described playback switch, and being configured between described power supply and described OLED assembly, set up the connection that is used for power delivery, described playback switch is configured to allow or do not allow this connection according to the digital signal that is generated by described comparator circuit.
19. system according to claim 13, wherein, described power switch comprises microprocessor, described microprocessor is connected with described comparator circuit, and is configured to allow or do not allow to be used between described power supply and the described OLED assembly according to the digital signal that is generated by described comparator circuit the connection of power delivery.
20. system according to claim 19, wherein, described power switch also comprise be used to carry out the digital signal that generates by described comparator circuit and the described OLED assembly of expression whether the digital signal of operate as normal the logical and operation with door, the result of described logical and operation exports described microprocessor to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/071667 WO2010127488A1 (en) | 2009-05-07 | 2009-05-07 | System for controlling light emission of television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102292760A true CN102292760A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980155404.5A Pending CN102292760A (en) | 2009-05-07 | 2009-05-07 | System for controlling light emission of television |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102292760A (en) |
| WO (1) | WO2010127488A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920267A (en) * | 2017-11-30 | 2018-04-17 | 深圳Tcl新技术有限公司 | Light sensation control method, television set and the computer-readable storage medium of television set |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8760517B2 (en) | 2010-09-27 | 2014-06-24 | Apple Inc. | Polarized images for security |
| US20120287031A1 (en) | 2011-05-12 | 2012-11-15 | Apple Inc. | Presence sensing |
| CN103534664B (en) | 2011-05-12 | 2016-08-31 | 苹果公司 | There is sensing |
| CN204090063U (en) * | 2014-08-21 | 2015-01-07 | 深圳Tcl新技术有限公司 | Television set control circuit and television set |
| US10817594B2 (en) | 2017-09-28 | 2020-10-27 | Apple Inc. | Wearable electronic device having a light field camera usable to perform bioauthentication from a dorsal side of a forearm near a wrist |
| CN112218139A (en) * | 2020-10-23 | 2021-01-12 | 广东长虹电子有限公司 | Infrared light short-distance switch control method and system and television |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371737Y (en) * | 1999-04-01 | 2000-03-29 | 方志平 | Automatic monitor for watching television distance |
| AU2003270899A1 (en) * | 2003-09-25 | 2005-05-11 | Nielsen Media Research, Inc. | Methods and apparatus to detect an operating state of a display based on visible light |
| CN201114447Y (en) * | 2007-09-25 | 2008-09-10 | 曹盛竹 | A TV watching distance control device |
-
2009
- 2009-05-07 CN CN200980155404.5A patent/CN102292760A/en active Pending
- 2009-05-07 WO PCT/CN2009/071667 patent/WO2010127488A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920267A (en) * | 2017-11-30 | 2018-04-17 | 深圳Tcl新技术有限公司 | Light sensation control method, television set and the computer-readable storage medium of television set |
| CN107920267B (en) * | 2017-11-30 | 2022-03-11 | 深圳Tcl新技术有限公司 | Light sensation control method of television, television and computer storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010127488A1 (en) | 2010-11-11 |
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