CN106888396B - Separated television control circuit and method and separated television - Google Patents
Separated television control circuit and method and separated television Download PDFInfo
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- CN106888396B CN106888396B CN201710035897.5A CN201710035897A CN106888396B CN 106888396 B CN106888396 B CN 106888396B CN 201710035897 A CN201710035897 A CN 201710035897A CN 106888396 B CN106888396 B CN 106888396B
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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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
- H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
-
- 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]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42208—Display device provided on the remote control
Abstract
The application discloses a separated television control circuit, a method and a separated television, wherein the separated television control circuit is applied to the separated television, the separated television comprises a screen and an external playing device which are electrically connected with each other, and the separated television control circuit disclosed by the application is installed in the screen and is electrically connected with a processor in the screen. The separated television control circuit controls the screen through a first screen control signal output by the processor under the condition that the electric connection between the external playing equipment and the screen is detected to be disconnected, and controls the screen through a second screen control signal output by the external playing equipment under the condition that the electric connection between the external playing equipment and the screen is detected to be not disconnected. Through the scheme disclosed by the embodiment of the application, the problem that the screen of the separated television cannot be controlled after the external playing device is electrically disconnected with the screen in the prior art is solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of separated televisions, in particular to a separated television control circuit and method and a separated television.
Background
A split tv is a tv product emerging in recent years, and is composed of a split screen 10 and an external playing device 20 (such as a host or a set-top box) as shown in fig. 1. When using a separate television, an interface cord is usually used to connect the screen and the external playing device. The external playing device is used for processing each channel of television signals, transmitting the processed television signals to a screen through an interface line, and displaying corresponding contents by the screen.
In addition, in the prior art, the screen of the separated television is controlled by an external playing device. When a screen of a television needing to be separated enters a standby state, the external playing equipment generates a shutdown signal according to the operation of a user, transmits the shutdown signal to the screen through an interface line, and after receiving the shutdown signal, the screen enters the standby state; when the screen of the television needs to be separated and enters a working state, the external playing equipment generates a starting signal under the operation of a user, transmits the starting signal to the screen through the interface line, and after receiving the starting signal, the screen enters the working state.
However, in the research process of the present application, the inventors found that, in the use process of the separated television, the connection between the external playback device and the screen may be disconnected, and thus the state of the screen cannot be controlled. For example, after the external playing device is disconnected from the screen, the screen is always in a working state and cannot enter a standby state because the external playing device cannot transmit a shutdown signal to the screen; or, the screen directly enters a standby state after detecting that the external playing device is not connected, and under the condition, the screen cannot enter a working state and cannot be controlled.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present application provide a separated television control circuit, a method and a separated television.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
according to a first aspect of the embodiments of the present application, a separated television control circuit is provided, which is applied to a separated television, where the separated television includes a screen and an external playing device that are electrically connected to each other, and the separated television control circuit is installed in the screen and electrically connected to a processor in the screen;
the separated television control circuit is used for detecting whether the electrical connection between the external playing equipment and the screen is disconnected or not, controlling the screen through a first screen control signal output by the processor under the condition that the electrical connection is disconnected, and controlling the screen through a second screen control signal output by the external playing equipment under the condition that the electrical connection is not disconnected.
Optionally, the separate tv control circuit includes: a detection sub-circuit and a selection sub-circuit;
the first input end of the selection sub-circuit is used for receiving the first screen control signal, and the second input end of the selection sub-circuit is used for receiving the second screen control signal;
the detection sub-circuit is used for detecting whether the electrical connection between the external playing equipment and the screen is disconnected or not, and outputting a first level to the third input end of the selection sub-circuit if the electrical connection is disconnected, and outputting a second level to the third input end of the selection sub-circuit if the electrical connection is not disconnected;
the selection sub-circuit is used for outputting the first screen control signal when receiving the first level and outputting the second screen control signal when receiving the second level.
Optionally, the selection sub-circuit is a switch selection chip.
Optionally, the separate tv control circuit further includes:
and the filtering sub-circuit is used for filtering the first screen control signal and/or the second screen control signal.
Optionally, the separate tv control circuit further includes:
and the level conversion sub-circuit is used for carrying out level conversion on the first screen control signal and/or the second screen control signal.
Optionally, the separate television control circuit is configured to control a backlight power supply of the screen.
According to a second aspect of the embodiments of the present application, there is provided a separated television control method, applied to a separated television, where the separated television includes a screen and an external playing device that are electrically connected to each other, and the separated television control method includes:
detecting whether the electrical connection between the external playing equipment and the screen is disconnected;
and if not, controlling the screen through a second screen control signal output by the external playing equipment.
Optionally, before controlling the screen, the method further includes:
filtering the first screen control signal and/or the second screen control signal.
Optionally, before controlling the screen, the method further includes:
and carrying out level conversion on the first screen control signal and/or the second screen control signal.
According to a third aspect of the embodiments of the present application, there is provided a split television, including a screen and an external playing device electrically connected to each other, where the split television control circuit and the processor as described in the first aspect of the embodiments of the present application are installed in the screen.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the embodiment of the application discloses a separated television control circuit, a method and a separated television provided with the separated television control circuit. The separated television control circuit controls the screen through a first screen control signal output by the processor under the condition that the electric connection between the external playing equipment and the screen is detected to be disconnected, and controls the screen through a second screen control signal output by the external playing equipment under the condition that the electric connection between the external playing equipment and the screen is detected to be not disconnected. Through the scheme disclosed by the embodiment of the application, the problem that the screen of the separated television cannot be controlled after the external playing device is electrically disconnected with the screen in the prior art is solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a split tv according to the prior art;
FIG. 2 is a schematic diagram illustrating the structure of a split television according to an exemplary embodiment of the present application;
FIG. 3 is a block diagram illustrating the structure of a split TV control circuit according to an exemplary embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a structure of a selection sub-circuit in a split television control circuit according to an exemplary embodiment of the present application;
FIG. 5 is a schematic diagram illustrating a further split television control circuit according to an exemplary embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a further split television control circuit according to an exemplary embodiment of the present application;
fig. 7 is a schematic workflow diagram illustrating a split tv control method according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The embodiment of the application discloses a separated television control circuit, a separated television control method and a separated television, and aims to solve the problem that in the prior art, after the external playing equipment is disconnected from a screen, the screen of the separated television cannot be controlled.
A first embodiment of the present application discloses a separated television control circuit, which is applied to a separated television, wherein the separated television includes a screen and an external playing device that are electrically connected to each other. Referring to the schematic diagram of the screen shown in fig. 2, the separate tv control circuit disclosed in the present application is installed in the screen and electrically connected to the processor in the screen.
The separated television control circuit is used for detecting whether the electrical connection between the external playing equipment and the screen is disconnected or not, controlling the screen through a first screen control signal output by the processor under the condition that the electrical connection is disconnected, and controlling the screen through a second screen control signal output by the external playing equipment under the condition that the electrical connection is not disconnected.
That is, if the external playback device is not electrically connected to the screen, the screen is controlled by a processor installed in the separate television. The first screen control signal output by the processor comprises a shutdown signal and a startup signal. In this case, if the first screen control signal received by the screen is a power-off signal, the screen enters a standby state, and if the first screen control signal received by the screen is a power-on signal, the screen enters a working state.
In addition, if the external playing equipment is electrically connected with the screen, the screen is controlled through the external playing equipment. And the second screen control signal output by the external playing equipment comprises a shutdown signal and a startup signal. In this case, if the second screen control signal received by the screen is a power-off signal, the screen enters a standby state, and if the second screen control signal received by the screen is a power-on signal, the screen enters a working state.
The embodiment of the application discloses a separated television control circuit, which is applied to a separated television, wherein the separated television comprises a screen and an external playing device which are electrically connected with each other, and the separated television control circuit disclosed by the embodiment of the application is arranged in the screen and is electrically connected with a processor in the screen. The separated television control circuit controls the screen through a first screen control signal output by the processor under the condition that the electric connection between the external playing equipment and the screen is detected to be disconnected, and controls the screen through a second screen control signal output by the external playing equipment under the condition that the electric connection between the external playing equipment and the screen is detected to be not disconnected. Through the separated television control circuit disclosed by the embodiment of the application, the problem that the screen of the separated television cannot be controlled after the external playing device is electrically disconnected with the screen in the prior art is solved.
In particular, in order to meet the viewing requirements of users, the screen of the split tv is usually set to be larger at present, and thus the power consumption is higher. In the prior art, after the electrical connection between the external playing device and the screen is disconnected, if the screen cannot be controlled, the screen is always in a working state, and a large amount of energy can be wasted. By adopting the separated television control circuit disclosed by the embodiment of the application, after the electrical connection between the external playing equipment and the screen is disconnected, the screen can be controlled by the processor arranged in the screen, so that the waste of energy is avoided.
In addition, in the prior art, after the screen detects that the external playing device is not connected, the screen may also directly enter a standby state, that is, shutdown, but this way makes it impossible for the user to distinguish whether the shutdown is direct current shutdown or alternating current shutdown, and the user experience is poor. The alternating current power-off refers to cutting off a main power supply of the separated television, under the condition, the whole separated television is not in a working state, if the separated television needs to be powered on, the main power supply needs to be turned on, and the touch remote controller does not work. The direct current power-off means that the backlight power supply of the separated television is turned off, but the power supply of the receiving part of the remote controller still works, and in this case, the television can be turned on through the remote controller. By the separated television control circuit disclosed by the embodiment of the application, after the electrical connection between the external playing equipment and the screen is disconnected, a user can control the screen through the control processor to determine the mode of shutdown, so that the user experience is improved.
In an embodiment of the application, the separate television control circuit is configured to control a backlight power supply of the screen. If the first screen control signal or the second screen control signal is a starting signal, turning on a backlight power supply of the screen so as to light the screen and enable the screen to enter a working state; and if the first screen control signal or the second screen control signal is a shutdown signal, closing a backlight power supply of the screen, so that the screen enters a standby state.
Further, referring to the structural block diagram of the separated television control circuit shown in fig. 3, the separated television control circuit includes: a detection sub-circuit 100 and a selection sub-circuit 200.
Wherein, the first input terminal of the selection sub-circuit 200 is configured to receive the first screen control signal, and the second input terminal is configured to receive the second screen control signal;
the detection sub-circuit 100 is configured to detect whether an electrical connection between the external playback device and the screen is disconnected, and if so, output a first level to a third input terminal of the selection sub-circuit 200, and if not, output a second level to the third input terminal of the selection sub-circuit 200;
the selection sub-circuit 200 is configured to output the first screen control signal when receiving the first level, and output the second screen control signal when receiving the second level.
Specifically, a first input terminal of the selection sub-circuit 200 is electrically connected to a processor installed in the screen, and when the electrical connection between the external playing device and the screen is not disconnected, a second input terminal of the selection sub-circuit 200 is electrically connected to the external playing device.
The selection sub-circuit may be a switch selection chip, and of course, the selection sub-circuit may also be a logic chip in other forms, which is not limited in this application.
For example, refer to the schematic structure diagram of the selection sub-circuit shown in fig. 4, in this example, the selection sub-circuit is a switch selection chip N1. The first input end of the selection sub-circuit is a first pin of a switch selection chip N1, and the first pin is electrically connected with the processor. The second input end of the selection sub-circuit is a third pin of the switch selection chip N1, and when the electrical connection between the external playing device and the screen is not disconnected, the third pin is electrically connected with the external playing device.
In addition, the third input terminal of the selection sub-circuit is the sixth pin of the switch selection chip N1. If the sixth pin receives the first level, outputting a first screen control signal through the fourth pin; and if the sixth pin receives the second level, outputting a second screen control signal through the fourth pin.
Further, in the selection sub-circuit shown in fig. 4, the second pin is usually used for grounding, and the fifth pin is used for connecting the power supply of the selection sub-circuit. The power panel is arranged in the separated television, generally provides one path of power supply as a backlight power supply, and controls the on and off of the backlight power supply through a first screen control signal and a second screen control signal, so that the control of the screen is realized. In addition, the power panel usually provides another power supply as the power supply of the selection sub-circuit.
In the split television control circuit disclosed in the present application, the detection sub-circuit includes a first transistor. The emitter of the first triode is grounded, and the collector of the first triode is respectively connected with the power supply of the first triode and the third input end of the selector sub-circuit, namely the sixth pin. And if the electrical connection between the external playing device and the screen is not disconnected, and the base of the first triode is electrically connected with the external playing device, the voltage connected to the base of the first triode is high level, the first triode is turned on, in this case, the sixth pin of the switch selection chip N1 is grounded, the level of the sixth pin is pulled low, the output signal of the fourth pin of the switch selection chip N1 is the same as the input signal of the third pin of the switch selection chip N1 (i.e. the second input end of the selection sub-circuit), and the screen is controlled by the external playing device. In addition, if the electrical connection between the external playing device and the screen is broken, and the base voltage of the first triode is floating, the first triode is in a cut-off state, in this case, the level at the sixth pin of the switch selection chip N1 is pulled high, the output signal of the fourth pin of the switch selection chip N1 is the same as the input signal of the first pin of the switch selection chip N1 (i.e. the first input end of the selection sub-circuit), and the screen is controlled by the processor.
In addition, in the separated television control circuit disclosed in the present application, the power supply of the first triode may be an independent power supply provided for a power panel provided in the separated television, or the first triode may also share the same power supply with the selector circuit.
Referring to the schematic diagram of the separated tv control circuit shown in fig. 5, the detection sub-circuit includes a first transistor V1, and further includes: the circuit comprises a first capacitor C1, a first resistor R1, a second resistor R2 and a third resistor R3.
If the electrical connection between the external playing device and the screen is not disconnected, the base of the first triode V1 is connected with the external playing device through the port VCC _ BOX, and the selection sub-circuit includes a switch selection chip N1, a first pin of the switch selection chip N1 is connected with the processor, a third pin is used for being connected with the external playing device, and a signal output by a fourth pin is used for controlling the screen.
The first pin of the switch selection chip N1 is connected to the processor and can receive the output signal (PWR _ ON/OFF _ MCU) of the processor, and the third pin of the switch selection chip N1 is connected to the external playing device and can receive the output signal (PWR _ ON/OFF _ BOX) of the external playing device. The fourth pin of the switch selection chip N1 transmits an output signal (PW _ ON/OFF) to the backlight power of the screen, controlling the switching of the backlight power.
And the state of the output signal of the fourth pin is determined by the level signal received by the sixth pin (i.e., the third input terminal). When the sixth pin receives the first level signal, the output signal of the fourth pin is that the third pin receives the first screen control signal, and the backlight power supply is controlled by the first screen control signal; when the sixth pin receives a second level signal, the output signal of the fourth pin is a second screen control signal received by the first pin, and the backlight power supply is controlled through the second screen control signal.
In addition, the second end of the first capacitor C1 is grounded, and if the electrical connection between the external playing device and the screen is not disconnected, the first end of the first capacitor C1 is connected with the external playing device through a port VCC _ BOX.
A first terminal of the first resistor R1 is connected to a first terminal of the first capacitor C1, and a second terminal of the first resistor R1 is connected to a base electrode of the first transistor.
The first end of the second resistor R2 is connected with a power supply of the detection sub-circuit, and the second end of the second resistor R2 is connected with the collector of the first triode.
The first end of the third resistor R3 is connected to the second end of the second resistor R2 and the collector of the first transistor, respectively, and the second end of the third resistor R3 is connected to the third input terminal of the selection sub-circuit.
In this case, the first capacitor C1 and the first resistor R1 are used to filter the interference signal in the circuit, and the second resistor R2 and the third resistor R3 are used to make the first level and the second level of the output of the detection sub-circuit more meet the requirement of the selection sub-circuit, thereby improving the stability of the circuit.
Illustratively, the first resistor R1 is 10k Ω, the second resistor R2 is 10k Ω, the third resistor R3 is 100k Ω, the first triode V1 is an NPN triode of type 2SCR523EB, and the first capacitor C1 is 100 n. Certainly, in practical applications, the first resistor R1, the second resistor R2, the third resistor R3, the first transistor V1, and the first capacitor C1 may also adopt other specifications, which is not limited in this application.
In addition, the split television control circuit further comprises: a second capacitor C2. The first end of the second capacitor C2 is electrically connected to the fifth pin of the selection sub-circuit and the power supply of the selection sub-circuit, respectively, and the second end of the second capacitor C2 is grounded. The second capacitor C2 is used for filtering out interference signals in the circuit, thereby improving the stability of the circuit.
Illustratively, the switch selection chip N1 is a logic chip of model SN74LVC1G3157DCKR, the logic chip includes three input pins and includes three input pins, and the second capacitor C2 is 1 u. Of course, in practical applications, the switch selection chip N1 and the second capacitor C2 may also have other specifications, which is not limited in this application.
Further, the separated tv control circuit disclosed in the present application further includes: a filtering sub-circuit to filter the first screen control signal and/or the second screen control signal.
In addition, the split tv control circuit disclosed in the present application further includes: a level shift sub-circuit for performing level shift on the first screen control signal and/or the second screen control signal.
In this case, a separate television control circuit shown in fig. 6 is formed. Referring to fig. 6, wherein the separate tv control circuit further comprises: a fourth resistor R4 and a third capacitor C3.
If the electrical connection between the external playing device and the screen is not disconnected, the first end of the fourth resistor R4 is used for connecting the external playing device. In addition, the fourth resistor R4 is connected to the second input terminal of the switch selection chip N1.
The first end of the third capacitor C3 is connected to the second end of the fourth resistor R4 and the second input end of the switch selection chip N1, respectively, and the second end of the third capacitor C3 is grounded.
In this case, the fourth resistor R4 and the third capacitor C3 form a filter sub-circuit for filtering interference signals between the external playback device and the switch selection chip N1.
Illustratively, the fourth resistor R4 is 100 Ω, and the third capacitor C3 is 100 n. Of course, in practical applications, the fourth resistor R4 and the third capacitor C3 may also have other specifications, which is not limited in this application.
Further, the separated tv control circuit further includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a fourth capacitor C4 and a second triode V2.
A first end of the fifth resistor R5 is connected to the processor, and a second end of the fifth resistor R5 is connected to the base of the second transistor V2 and the first end of the fourth capacitor C4, respectively.
A first end of the fourth capacitor C4 is connected to the second end of the fifth resistor R5 and the base of the second transistor V2, respectively, and a second end of the fourth capacitor C4 is grounded.
The first end of the sixth resistor R6 is connected to a power supply of the second transistor V2, and the second end of the sixth resistor R6 is connected to a collector of the second transistor V2, wherein the power supply of the second transistor V2 may be an independent power supply provided by a power board provided in a separate television, or the first transistor may share the same power supply with the selector circuit and/or the first transistor V1.
The emitter of the second triode V2 is grounded.
A first end of the seventh resistor R7 is connected to a second end of the sixth resistor R6 and a collector of the second transistor V2, respectively, and a second end of the seventh resistor R7 is connected to a first input terminal of a switch selection chip N1.
In this case, the fifth resistor R5 and the fourth capacitor C4 form a filter sub-circuit for filtering interference signals between the processor and the switch selection chip N1, and the sixth resistor R6, the seventh resistor R7 and the second transistor V2 form a level shifter sub-circuit for performing level shifting on the first screen control signal output by the processor, and then transmitting the level-shifted first screen control signal to the switch selection chip N1, so that the first screen control signal transmitted to the switch selection chip N1 meets the specification requirement of the switch selection chip N1.
Illustratively, the seventh resistor R7 is 100 Ω, the sixth resistor R6 is 10k Ω, the second triode V2 is an NPN triode of type 2SCR523EB, the fifth resistor R5 is 10k Ω, and the fourth capacitor C4 is 4.7 u. Certainly, in practical applications, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the fourth capacitor C4, and the second transistor V2 may also adopt other specifications, which is not limited in this application.
The second embodiment of the application discloses a separated television control method, which is applied to a separated television, wherein the separated television comprises a screen and an external playing device which are electrically connected with each other. Referring to the workflow diagram shown in fig. 7, the method for controlling a split television disclosed in the embodiment of the present application includes the following steps:
and step S11, detecting whether the electric connection between the external playing equipment and the screen is disconnected, if so, executing the operation of step S12, and if not, executing the operation of step S13.
And step S12, if the external playing equipment is detected to be electrically disconnected with the screen, controlling the screen through a first screen control signal output by a processor arranged in the screen.
And step S13, if the fact that the electric connection between the external playing equipment and the screen is not disconnected is detected, controlling the screen through a second screen control signal output by the external playing equipment.
Wherein controlling the screen refers to controlling a backlight power supply of the screen. If the first screen control signal or the second screen control signal is a starting signal, turning on a backlight power supply of the screen so as to enable the screen to enter a working state; and if the first screen control signal or the second screen control signal is a shutdown signal, closing a backlight power supply of the screen, so that the screen enters a standby state.
By the method disclosed by the embodiment of the application, the screen can be controlled by the first screen control signal output by the processor under the condition that the electric connection between the external playing equipment and the screen is detected to be disconnected, and the screen can be controlled by the second screen control signal output by the external playing equipment under the condition that the electric connection between the external playing equipment and the screen is not detected to be disconnected, so that the problem that the screen of the separated television cannot be controlled after the electric connection between the external playing equipment and the screen is disconnected in the prior art is solved.
Moreover, in order to meet the viewing requirements of users, the screen of the split tv is usually set to be larger at present, and thus the power consumption is higher. In the prior art, after the external playing device is electrically disconnected from the screen, if the screen cannot be controlled, a large amount of energy can be wasted under the condition that the screen is always in a working state. By adopting the separated television control method disclosed by the embodiment of the application, after the electrical connection between the external playing equipment and the screen is disconnected, the screen can be controlled through the processor arranged in the screen, so that the waste of energy is avoided.
In addition, in the prior art, after the screen detects that the external playing device is not connected, the screen may also directly enter a standby state, that is, shutdown is realized, but this way makes it impossible for a user to distinguish whether the shutdown is direct current shutdown or alternating current shutdown, and user experience is poor. According to the separated television control method disclosed by the embodiment of the application, after the electrical connection between the external playing equipment and the screen is disconnected, a user can control the screen through the control processor to determine the mode of shutdown, so that the user experience is improved.
Further, the method for controlling a split television according to the embodiment of the present application, before controlling the screen, further includes:
filtering the first screen control signal and/or the second screen control signal.
Further, the method for controlling a split television according to the embodiment of the present application, before controlling the screen, further includes:
and carrying out level conversion on the first screen control signal and/or the second screen control signal.
Through foretell filtering operation, interference signal in the filtering circuit, in addition, through foretell level transition operation, can make the signal in the circuit accord with the specification demand of the components and parts of receiving this signal after the level transition to improve the stability of circuit in the screen.
A third embodiment of the present application discloses a separated television, which includes a screen and an external playing device electrically connected to each other, and a separated television control circuit and a processor as described in the first embodiment of the present application are installed in the screen.
The separated television disclosed by the embodiment of the application solves the problem that the screen of the separated television cannot be controlled after the external playing setting and the screen are electrically disconnected in the prior art.
In particular, in order to meet the viewing requirements of users, the screen of the split tv is usually set to be larger at present, and thus the power consumption is higher. In the prior art, after the external playing device is electrically disconnected from the screen, if the screen cannot be controlled, a large amount of energy can be wasted under the condition that the screen is always in a working state. By adopting the separated television disclosed by the embodiment of the application, after the electric connection between the external playing equipment and the screen is disconnected, the screen can be controlled by the processor arranged in the screen, so that the waste of energy is avoided.
In addition, in the prior art, after the screen detects that the external playing device is not connected, the screen may also directly enter a standby state, that is, shutdown is realized, but this way makes it impossible for a user to distinguish whether the shutdown is direct current shutdown or alternating current shutdown, and user experience is poor. According to the separated television disclosed by the embodiment of the application, after the electrical connection between the external playing equipment and the screen is disconnected, a user can control the screen through the control processor to determine the current shutdown mode, so that the user experience is improved.
In the separated television disclosed in the embodiment of the application, if the electrical connection between the external playing device and the screen is disconnected, a user can control the processor in multiple ways, so that the processor generates a corresponding first screen control signal.
In one mode, if a key electrically connected to the processor is disposed on the screen surface of the separated television, the user can touch the key, so that the processor generates a corresponding first screen control signal.
In another mode, a remote control signal receiver electrically connected to the processor may be provided on the screen surface of the separate television. The user can operate the remote controller matched with the remote control signal receiver to enable the remote controller to generate a corresponding remote control signal, the remote control signal receiver can receive the remote control signal and transmit the remote control signal to the processor, and the processor generates a corresponding first screen control signal according to the remote control signal.
The remote control signal receiver includes various types, such as an infrared signal receiver, a bluetooth signal receiver, or a radio frequency signal receiver, which is not limited in this respect.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A separated television control circuit is applied to a separated television, the separated television comprises a screen and an external playing device which are electrically connected with each other, and the separated television control circuit is characterized in that the separated television control circuit is arranged in the screen and is electrically connected with a processor in the screen;
the separated television control circuit is used for detecting whether the electrical connection between the external playing equipment and the screen is disconnected or not, controlling the screen through a first screen control signal output by the processor under the condition that the electrical connection is disconnected, and controlling the screen through a second screen control signal output by the external playing equipment under the condition that the electrical connection is not disconnected.
2. The split television control circuit as claimed in claim 1, wherein the split television control circuit comprises: a detection sub-circuit and a selection sub-circuit;
the first input end of the selection sub-circuit is used for receiving the first screen control signal, and the second input end of the selection sub-circuit is used for receiving the second screen control signal;
the detection sub-circuit is used for detecting whether the electrical connection between the external playing equipment and the screen is disconnected or not, and outputting a first level to the third input end of the selection sub-circuit if the electrical connection is disconnected, and outputting a second level to the third input end of the selection sub-circuit if the electrical connection is not disconnected;
the selection sub-circuit is used for outputting the first screen control signal when receiving the first level and outputting the second screen control signal when receiving the second level.
3. The split television control circuit of claim 2,
the selection sub-circuit is a switch selection chip.
4. The split television control circuit as claimed in claim 1, further comprising:
and the filtering sub-circuit is used for filtering the first screen control signal and/or the second screen control signal.
5. The split television control circuit as claimed in claim 1, further comprising:
and the level conversion sub-circuit is used for carrying out level conversion on the first screen control signal and/or the second screen control signal.
6. The split television control circuit of claim 1,
the separate television control circuit is used for controlling a backlight power supply of the screen.
7. A separated television control method is applied to a separated television, the separated television comprises a screen and an external playing device which are electrically connected with each other, and the separated television control method is characterized by comprising the following steps:
detecting whether the electrical connection between the external playing equipment and the screen is disconnected;
and if not, controlling the screen through a second screen control signal output by the external playing equipment.
8. The split television control method as claimed in claim 7, further comprising, before controlling the screen:
filtering the first screen control signal and/or the second screen control signal.
9. The split television control method as claimed in claim 7, further comprising, before controlling the screen:
and carrying out level conversion on the first screen control signal and/or the second screen control signal.
10. A split tv comprising a screen and an external playing device electrically connected to each other, wherein the screen has mounted therein a split tv control circuit and processor as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035897.5A CN106888396B (en) | 2017-01-18 | 2017-01-18 | Separated television control circuit and method and separated television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035897.5A CN106888396B (en) | 2017-01-18 | 2017-01-18 | Separated television control circuit and method and separated television |
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| Publication Number | Publication Date |
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| CN106888396A CN106888396A (en) | 2017-06-23 |
| CN106888396B true CN106888396B (en) | 2019-12-31 |
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| CN201710035897.5A Active CN106888396B (en) | 2017-01-18 | 2017-01-18 | Separated television control circuit and method and separated television |
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| CN111813457A (en) * | 2020-07-20 | 2020-10-23 | 四川长虹电器股份有限公司 | Device and method for timing startup and shutdown of multi-screen advertising machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2468923B (en) * | 2009-03-27 | 2014-07-09 | Sony Uk Ltd | Television apparatus |
| CN101662624A (en) * | 2009-09-17 | 2010-03-03 | 中国电信股份有限公司 | Linked power on/off device and method for television and set-top box |
| CN102196215A (en) * | 2010-03-11 | 2011-09-21 | 刘军 | Split light emitting diode (LED) television |
| CN202150899U (en) * | 2011-07-18 | 2012-02-22 | Tcl集团股份有限公司 | Split-type television set |
| CN105392049B (en) * | 2015-10-28 | 2018-11-20 | 青岛海信电器股份有限公司 | Audio gain adjusting method, screen end equipment, master control borad and separation TV |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |
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