CN108366453B - Television receiver - Google Patents
Television receiver Download PDFInfo
- Publication number
- CN108366453B CN108366453B CN201810144960.3A CN201810144960A CN108366453B CN 108366453 B CN108366453 B CN 108366453B CN 201810144960 A CN201810144960 A CN 201810144960A CN 108366453 B CN108366453 B CN 108366453B
- Authority
- CN
- China
- Prior art keywords
- indicator light
- light
- resistor
- indicator
- diode
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a television, which comprises a television main body, a control circuit arranged on the television main body, and a first indicator light, a second indicator light and a third indicator light which are electrically connected with the control circuit; the first indicator light, the second indicator light and the third indicator light are arranged in a delta shape on the same horizontal plane, and the television main body is provided with an indicator light display area for transmitting light of the first indicator light, the second indicator light and the third indicator light; the linear distance from the first indicator light to the indicator light display area is smaller than the linear distance from the second indicator light and the third indicator light to the indicator light display area; the control circuit is used for controlling the first indicator light, the second indicator light and the third indicator light to enter a breathing lighting mode in the process that the television is switched from a standby state to a starting state.
Description
Technical Field
The invention relates to the field of televisions, in particular to a television.
Background
With the popularization of televisions, the power-on indicator lamp is used as an extremely small component in various types of televisions, but plays an important role in indicating the power-on or remote control instruction of the television, and is convenient for people to check and judge the state of the television and the effectiveness of the remote control instruction.
The existing starting indicator lamp of the television has the following display conditions from each small brand to a large brand on the whole: (1) the starting indicator lamp is in a red state all the time after being powered on, and the indicator lamp is turned into green after the starting process is finished, so that the phenomenon that the indicator lamp suddenly flashes and then returns to normal often occurs in the process; (2) the red light which is lighted at certain time intervals after the power supply is switched on is changed into a normally on state or a normally off state after the power supply is started; the two types cover most of the television indicator lamp modes on the market. The above can be summarized as the following features: the first is that the indicator light changes color to represent the change of the machine state, and the second is that the indicator light changes the time for which the indicator light is turned off to represent the change of the machine state. Due to the limitation of the prior art, the following problems occur in life, and the display of the indicator lamp is single in the starting process because the similarity of the indicator lamp control process is too high, so that the visual fatigue is easily caused, and the brand distinguishing is also not facilitated.
Disclosure of Invention
The invention mainly aims to provide a television, and aims to solve the problems that an indicator light is single in display and easy to cause visual fatigue in the starting process.
In order to achieve the above object, the present invention provides a television, which includes a television main body, a control circuit disposed on the television main body, and a first indicator light, a second indicator light, and a third indicator light electrically connected to the control circuit; the first indicator light, the second indicator light and the third indicator light are arranged in a delta shape on the same horizontal plane, and the television main body is provided with an indicator light display area for transmitting light of the first indicator light, the second indicator light and the third indicator light; the linear distance from the first indicator light to the indicator light display area is smaller than the linear distance from the second indicator light and the third indicator light to the indicator light display area;
the control circuit is used for controlling the first indicator light, the second indicator light and the third indicator light to enter a breathing lighting mode in the process that the television is switched from a standby state to a starting state.
Preferably, the control circuit is further configured to control the second indicator light and the third indicator light to enter a breath-off mode after the television is turned on.
Preferably, the control circuit is further configured to decrease the brightness of the first indicator light while controlling the second indicator light and the third indicator light to enter a breath-out mode.
Preferably, the control circuit comprises a controller, a first driving circuit and a second driving circuit, wherein the first driving circuit is used for driving the first indicator lamp to work based on the control of the controller; and the second driving circuit is used for driving the second indicator light and the third indicator light to work based on the control of the controller.
Preferably, the first driving circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first diode, a second diode, a first triode, a second triode and a first MOS transistor; a first power supply input end of the first driving circuit is connected with one end of the first resistor; the other end of the first resistor is connected with the anode of the first diode; the cathode of the first diode is connected with the drain electrode of the first MOS tube; the grid electrode of the first MOS tube is connected with one end of the second resistor, and the source electrode of the first MOS tube is connected with the collector electrode of the first triode; the other end of the second resistor, the collector of the second triode and one end of the fourth resistor are connected; the other end of the fourth resistor is a second power supply input end of the first driving circuit; the emitting electrode of the first triode is grounded, and the base electrode of the first triode is connected with one end of the third resistor; the other end of the third resistor is connected with a first port of the controller; the base electrode of the second triode is connected with one end of the fifth resistor, and the emitting electrode of the second triode and the negative electrode of the second diode are grounded; the anode of the second diode is connected with one end of the sixth resistor; the other end of the fifth resistor and the other end of the sixth resistor are connected with a second port of the controller.
Preferably, the second driving circuit includes a seventh resistor, an eighth resistor, a ninth resistor, a third triode, a third diode and a fourth diode; one end of the seventh resistor and one end of the eighth resistor are connected with the first power supply input end of the second driving circuit, and the other end of the seventh resistor is connected with the anode of the third diode; the other end of the eighth resistor is connected with the anode of the fourth diode; the negative electrode of the third diode is connected with the collector electrode of the third triode; the negative electrode of the fourth diode and the emitting electrode of the third triode are grounded, and the base electrode of the third triode is connected with one end of the ninth resistor; the other end of the ninth resistor is connected with a third port of the controller.
Preferably, the television further includes a fourth indicator light, and the first driving circuit is further configured to drive the fourth indicator light to operate in a process that the television is switched from the standby state to the power-on state based on the control of the controller.
Preferably, the television further comprises a PCB board, and a first light blocking member and a second light blocking member which are arranged on the PCB board, and the control circuit, the first indicator light, the second indicator light and the third indicator light are all arranged on the PCB board; the first light-blocking piece is arranged on a connecting line of the first indicator light and the second indicator light and is positioned between the first indicator light and the first light superposition area, and the first light-blocking piece is used for weakening the light intensity emitted to the first light superposition area through the connecting line of the first indicator light and the second indicator light;
the first indicator light and the third indicator light form a second light superposition area on the indicator light display area, the second light superposition area is an area pointed by a connecting line of the first indicator light and the third indicator light on the indicator light area, the second light blocking piece is arranged on the connecting line of the first indicator light and the third indicator light and is positioned in the first indicator light and the second light superposition area, and the second light blocking piece is used for weakening light intensity emitted to the first light superposition area through the connecting line of the first indicator light and the third indicator light.
Preferably, the first light blocking member and the second light blocking member are electronic components of the control circuit.
Preferably, the television further comprises a light-transmitting cover arranged on the television main body, and the light-transmitting cover is the display area of the indicator light.
The technical scheme of the invention adopts a mode that the first indicator light, the second indicator light and the third indicator light are cooperated with the control circuit. The control circuit comprises a first drive circuit, a second drive circuit and a controller. At the moment, the first indicator lamp is driven to be dynamically breathed and lightened in the starting process through the first driving circuit based on the control of the controller, the second indicator lamp and the third indicator lamp are driven to be breathed and lightened in the starting process through the second driving circuit based on the control of the controller, after the starting process is completed, the brightness of the second indicator lamp and the brightness of the third indicator lamp are gradually reduced until the second indicator lamp and the third indicator lamp are turned off, the brightness of the first indicator lamp is enhanced until the first indicator lamp is stabilized and kept normally on after a preset range value, and therefore a dynamic breathing effect of light is formed. Meanwhile, finished characters of the first indicator light, the second indicator light and the third indicator light are arranged on the display lamp PCB, so that the illumination is uniformly distributed as much as possible, two light blocking elements are additionally arranged, the superposition light intensity of the light field overlapping area is weakened, and finally, the arc-shaped light transmitting elements are additionally arranged in the light display direction, so that the integrity of light display is improved, and the dynamic starting effect display is more obvious. Through the technical means, the problem that the display of the indicator lamp is single in the starting process due to the fact that the similarity of the indicator lamp in the starting process of the indicator lamp is too high is solved, the ornamental effect of the starting process is improved, and a user can distinguish brands more conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of a TV set according to the present invention;
fig. 2 is a schematic circuit diagram of a first driving circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a second driving circuit in an embodiment of a television set according to the invention;
FIG. 4 is a schematic structural diagram of a PCB in the TV set of the present invention;
FIG. 5 is a timing diagram of control signals in the television set according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a television, which comprises a television main body, a control circuit 301 arranged on the television main body, and a first indicator light 302, a second indicator light 303 and a third indicator light 304 which are electrically connected with the control circuit 301; the first indicator light 302, the second indicator light 303, and the third indicator light 304 are light emitting diodes. The first indicator light 302, the second indicator light 303 and the third indicator light 304 are arranged in a delta shape on the same horizontal plane, and the television main body is provided with an indicator light display area for allowing light of the first indicator light 302, the second indicator light 303 and the third indicator light 304 to penetrate; the straight distance from the first indicator light 302 to the indicator light display area is smaller than the straight distance from the second indicator light 303 and the third indicator light 304 to the indicator light display area. The indication lamp display area may be formed by setting a corresponding position of a front frame of the television to be a light-transmitting area, or may be formed by opening a hole at the corresponding position of the front frame of the television and then setting a light-transmitting component, for example, the television further includes a light-transmitting cover 401 arranged on the television main body, and the light-transmitting cover 401 is the indication lamp display area. The light transmissive cover 401 may be of various shapes, and preferably is an arc-shaped light transmissive element in this embodiment, for enhancing the integrity of the light display and enhancing the dynamic stretching effect in the visual sense, so that the dynamic power-on effect display is more obvious.
In this embodiment, the control circuit 301 is configured to control the first indicator light 302, the second indicator light 303, and the third indicator light 304 to enter the breath lighting mode in the process of switching the television from the standby state to the power-on state, so that the brightness of the first indicator light 302, the second indicator light 303, and the third indicator light 304 dynamically changes in a gradually increasing manner.
In the embodiment of the present invention, as shown in fig. 1 and 4, the present invention adopts a mode that a first indicator light 302, a second indicator light 303 and a third indicator light 304 work together with a control circuit 301. The control circuit 301 controls and drives the first indicator light 302, the second indicator light 303 and the third indicator light 304 to light during the starting process, so that a dynamic light breathing effect is formed. Meanwhile, the first indicator light 302, the second indicator light 303 and the third indicator light 304 are arranged in a finished word shape, so that the problems of insufficient brightness, single color and single display caused by a single light source can be solved. Moreover, the problem that the display of the indicator lamp is single in the starting process due to the fact that the similarity of the indicator lamp in the starting process of the indicator lamp is too high is solved, the ornamental effect of the starting process is improved, and a user can distinguish brands more conveniently.
In addition, in addition to the above control, the control circuit 301 may further be configured to control the second indicator light 303 and the third indicator light 304 to enter the breath-out mode after the television is turned on.
After the power-on is completed, the control circuit 301 sends the second control signal KEY1 to the second indicator light 303 and the third indicator light 304, so as to adjust the duty ratio of the control signal flowing through the second indicator light 303 and the third indicator light 304, so that the brightness of the second indicator light 303 and the third indicator light 304 changes along with the change of the duty ratio, when the duty ratio of the second control signal KEY1 is high, the brightness of the second indicator light 303 and the third indicator light 304 is high, and vice versa, thereby forming a dynamic light intensity changing effect. In this case, the second control signal KEY1 may be the same control signal for controlling the second indicator light 303 and the third indicator light 304, or may be different control signals for separately controlling the second indicator light 303 and the third indicator light 304, and in this embodiment, the same control signal source is preferred.
Further, in addition to the above control, the control circuit 301 may be further configured to decrease the brightness of the first indicator lamp 302 while controlling the second indicator lamp 303 and the third indicator lamp 304 to enter the breath-out mode.
After the power-on operation is completed, the control circuit 301 sends the second control signal KEY1 to the second indicator LIGHT 303 and the third indicator LIGHT 304 to turn off the second indicator LIGHT 303 and the third indicator LIGHT 304 gradually, the control circuit 301 also sends the first control signal to make the first indicator LIGHT 302 reduce the brightness slightly, at this time, the first control signal LIGHT-S and the second control signal KEY1 act together to form an effect that the display LIGHT of the indicator LIGHTs shrink from two sides to the middle, and the indicator LIGHT has strong indicating performance, is convenient to identify and is rich in aesthetic feeling. Moreover, the first indicator light 302 slightly reduces the brightness to protect eyes and improve the comfort level of user experience.
In the above embodiment, optionally, the control circuit 301 includes the controller 305, the first driving circuit 306 and the second driving circuit 307, wherein the first driving circuit 306 is configured to drive the first indicator light 302 to operate based on the control of the controller 305; and a second driving circuit 307 for driving the second indicator light 303 and the third indicator light 304 to operate based on the control of the controller 305.
The first driving circuit 306 sends the first control signal LIGHT-S and the third control signal LED-R given by the controller to the first indicator LIGHT 302 to drive the first indicator LIGHT 302 to operate, and the second driving circuit 307 sends the second control signal KEY1 to the second indicator LIGHT 303 and the third indicator LIGHT 304 to drive the second indicator LIGHT 303 and the third indicator LIGHT 304 to operate. At this time, the first indicator light 302, the second indicator light 303 and the third indicator light 304 are separately controlled by different driving circuits, so that the display brightness of a single indicator light is varied, and a plurality of indicator lights are varied and overlapped, thereby realizing the overall dynamic telescopic effect.
Optionally, the first driving circuit 306 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first diode L1, a second diode L2, a first transistor Q2, a second transistor Q3, and a first MOS transistor Q1; the first power input terminal V1 of the first driving circuit 306 is connected to one end of the first resistor R1; the other end of the first resistor R1 is connected with the anode of a first diode L1; the cathode of the first diode L1 is connected with the drain of the first MOS transistor Q1; the grid electrode of the first MOS transistor Q1 is connected with one end of the second resistor R2, and the source electrode of the first MOS transistor Q1 is connected with the collector electrode of the first triode Q2; the other end of the second resistor R2, the collector of the second triode Q3 and one end of the fourth resistor R4 are connected; the other end of the fourth resistor R4 is a second power input terminal V2 of the first driving circuit 306; the emitter of the first triode Q2 is grounded, and the base of the first triode Q2 is connected with one end of the third resistor R3; the other end of the third resistor R3 is connected to a first port of the controller 305; the base electrode of the second triode Q3 is connected with one end of the fifth resistor R5, and the emitter electrode of the second triode Q3 and the cathode of the second diode L2 are grounded; the anode of the second diode L2 is connected to one end of the sixth resistor R6; the other end of the fifth resistor R5 and the other end of the sixth resistor R6 are connected to a second port of the controller 305.
As shown in fig. 2 and 5, when the television is in the standby state, the first control signal LIGHT-S is at a low level, the third control signal LED-R is at a high level, the first transistor Q2 and the second transistor Q3 are turned off, the path of the first diode L1 is turned off, and the first diode L1 is not turned on. The second diode L2 path is conductive and the second diode L2 is bright.
When the television is in a starting process, the first control signal LIGHT-S is a PWM signal, and the third control signal LED-R is a low level. When the PWM is a high pulse, the collector of the first transistor Q2 is at a low level, a path is formed between the first transistor Q2 and the first MOS transistor Q1, the first control signal LIGHT-S current of the first driving circuit 306 passes through the path with the first diode L1, and the first diode L1 is bright. And because the first control signal LIGHT-S is a PWM signal, the phase of the PWM signal at the collector of the first transistor Q2 is opposite to the phase of the first control signal LIGHT-S under the action of electronic components in the circuit, so that the phase of the signal flowing into the indicator LIGHT 1 is opposite to the phase of the first control signal LIGHT-S, and thus the brightness of the first diode L1 changes with the phase of the PWM signal of the first control signal LIGHT-S to generate a brightness change, thereby achieving a breathing LIGHT effect. When the television is turned on, the first control signal LIGHT-S is slightly decreased by a pulse amplitude, and the brightness of the first diode L1 is slightly decreased but not extinguished, and the television is remotely controlled halfway, the television receives the control signal, and the controller 305 sends a switching signal of high and low pulses to the first diode L1, so that the first diode L1 is extinguished and the brightness is restored (the extinguishing time is given by the control signal).
Optionally, the second driving circuit 307 includes a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a third transistor Q4, a third diode L3, and a fourth diode L4; one end of the seventh resistor R7 and one end of the eighth resistor R8 are connected to the first power input terminal V3 of the second driving circuit 307, and the other end of the seventh resistor R7 is connected to the anode of the third diode L3; the other end of the eighth resistor R8 is connected to the anode of the fourth diode L4; the cathode of the third diode L3 is connected with the collector of the third triode Q4; the negative electrode of the fourth diode L4 and the emitter of the third triode Q4 are grounded, and the base of the third triode Q4 is connected with one end of a ninth resistor R9; the other end of the ninth resistor R9 is connected to the third port of the controller 305.
As shown in fig. 3, when the television is in the standby state, the second control signal KEY1 is at a low level, the third transistor Q4 is turned off, and the second driving circuit 307 cannot form a path. When the television is in the on state, the second control signal KEY1 sent by the controller 305 is also a PWM signal, but the duty ratio of the second control signal KEY1 is different from that of the first control signal LIGHT-S, when the signal KEY1 is at a high level, the paths of the second indicator LIGHT 303, the third indicator LIGHT 304, the second transistor Q3 and the controller 305 are turned on, at this time, the phase of the control signal passing through the collector of the second transistor Q3 is opposite to that of the second control signal KEY1, the indicator LIGHT 2 and the indicator LIGHT 3 generate a brightness change along with the duty ratio change of the second control signal KEY1, and the brightness changes of the second diode L2 and the third diode L3 are synchronous. The duty ratio variation amplitude of the first diode L1 is controlled to be slightly smaller, and the duty ratio variation amplitudes of the control signals of the second diode L2 and the third diode L3 are controlled to be slightly larger (0% -100%), so that the light stretching effect is more obvious, and the starting process of a product is more ornamental; the above duty cycle adjustment process may be implemented by the controller 305.
The second control signal KEY1, after the power-on is completed, the high pulse signal will slowly decrease to the low pulse signal until it is completely extinguished, and it is kept normally extinguished.
From standby to power-on, the first diode L1, the second diode L2 and the third indicator light 304 form a dynamic light display effect, and the dynamic effect display of light breathing is realized through the control of a specific signal.
In the above embodiment, optionally, the television further includes a fourth indicator light 308, and the first driving circuit is further configured to drive the fourth indicator light 308 to operate in a process of switching the television from the standby state to the power-on state based on the control of the controller 305.
The fourth indicator light 308 is a light emitting diode. The third control signal LED-R controls the fourth indicator lamp 308 through the third driving circuit, the control signal has only two states of high and low level, when the television is in a standby state, the third control signal LED-R is at high level, the controller 305 is connected with the fourth indicator lamp 308, and the fourth indicator lamp 308 is on; when the indicator light device is in the on state, the third control signal LED-R is at a low level, the controller 305 and the fourth indicator light 308 are disconnected, and the fourth indicator light 308 is not turned on.
In the above embodiment, optionally, the television further includes a PCB board, and a first light blocking member 402 and a second light blocking member 403 arranged on the PCB board, and the control circuit 301, the first indicator light 302, the second indicator light 303, and the third indicator light 304 are all arranged on the PCB board; light rays emitted by the first indicator light 302 and the second indicator light 303 form a first light ray overlapping area on the indicator light display area, the first light ray overlapping area is an area pointed by a connecting line of the first indicator light 302 and the second indicator light 303 on the indicator light area, the first light blocking member 402 is arranged on the connecting line of the first indicator light 302 and the second indicator light 303 and is positioned between the first indicator light 302 and the first light ray overlapping area, and the first light blocking member 402 is used for weakening the light intensity emitted to the first light ray overlapping area through the connecting line of the first indicator light 302 and the second indicator light 303;
the first indicator light 302 and the third indicator light 304 form a second light overlapping area on the indicator light display area, the second light overlapping area is an area pointed by a connection line of the first indicator light 302 and the third indicator light 304 on the indicator light area, the second light blocking member 403 is arranged on the connection line of the first indicator light 302 and the third indicator light 304 and is positioned in the first indicator light 302 and the second light overlapping area, and the second light blocking member 403 is used for weakening the light intensity emitted to the first light overlapping area through the connection line of the first indicator light 302 and the third indicator light 304.
Further, the first light blocking member 402 and the second light blocking member 403 are electronic components of the control circuit 301. The television further comprises a light-transmitting cover 401 arranged on the television main body, and the light-transmitting cover 401 is an indicator light display area.
According to the relative positions of the first indicator light 302, the second indicator light 303 and the third indicator light 304, the width of the light ray overlapping area in the direction perpendicular to the connecting line of the second indicator light 303 and the third indicator light 304 at a specific position is calculated through an incoherent light overlapping principle, and the length or the width of the needed light blocking element is obtained. Preferably in such a way that the resistive elements are arranged directly on the PCB. The light blocking element can filter the superposed strong light effect in the area with enhanced illumination intensity and increase the softness of light display.
According to the technical scheme, the breathing and dynamic telescopic effects of the indicator lamps are realized by adopting a mode of combining circuit control and elements for controlling the light and shade change of the lamps at the same time through the finished product word arrangement of the first indicator lamp 302, the second indicator lamp 303, the third indicator lamp 304 and the like, and the controller 305, the first driving circuit 306 and the second driving circuit 307. The specific action process is as follows:
when the television is in a standby state, the third control signal LED-R is at a high level, the controller 305 and the fourth indicator lamp 308 are turned on, and the fourth indicator lamp 308 is turned on. The first control signal LIGHT-S, the second control signal KEY1 are at a low level, the first triode Q2, the first MOS transistor Q1 and the third triode Q4 are in an off state, the corresponding paths are disconnected, and the first indicator LIGHT 302, the second indicator LIGHT 303 and the third indicator LIGHT 304 are not turned on;
when the television is in the power-on process, the third control signal LED-R is at a low level, the controller 305 and the fourth indicator LIGHT 308 are disconnected, the fourth indicator LIGHT 308 is not turned on, and meanwhile, the first control signal LIGHT-S and the second control signal KEY1 also have signal inputs, and the action process at this time is as follows:
(1) when the first control signal LIGHT-S is a high pulse, the collector of the first transistor Q2 is at a low level, and at this time, a path is formed between the first transistor Q2 and the first MOS transistor Q1, and the first indicator LIGHT 302 is turned on. Since the first control signal LIGHT-S is a PWM signal, the collector of the first transistor Q2 is a PWM signal and has a phase opposite to the first control signal LIGHT-S, so that the first indicator LIGHT 302 has a bright-dark change to generate a breathing effect. When the first control signal LIGHT-S is a low pulse, the first transistor Q2 is not turned on, and the first indicator LIGHT 302 is not turned on.
(2) When the second control signal KEY1 is a high pulse, the collector of the third transistor Q4 is at a low level, the third transistor Q4 and the seventh resistor R7 form a path, and the second indicator light 303 and the third indicator light 304 are simultaneously turned on. Since the second control signal KEY1 is a PWM signal, the collector of the third transistor Q4 is a PWM signal, and the phase is opposite to the phase of the low pulse of the second control signal KEY1, so that the second indicator light 303 and the third indicator light 304 have brightness change to generate a breathing effect. When the second control signal KEY1 is a low pulse, the third transistor Q4 is turned off, and the second indicator light 303 and the third indicator light 304 are turned off.
When the television is turned on, the signal KEY1 is gradually switched from high level to low level (i.e. duty ratio 0%), the second indicator LIGHT 303 and the third indicator LIGHT 304 are simultaneously turned off, the signal LIGHT _ S is switched to high level (i.e. duty ratio 100%), the first indicator LIGHT 302 is normally on, the brightness is dimmed through software, at the moment, the television is remotely controlled through the remote controller, and the first indicator LIGHT 302 flickers once every time the KEY is pressed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A television is characterized by comprising a television main body, a control circuit arranged on the television main body, and a first indicator light, a second indicator light and a third indicator light which are electrically connected with the control circuit; the first indicator light, the second indicator light and the third indicator light are arranged in a delta shape on the same horizontal plane, and the television main body is provided with an indicator light display area for transmitting light of the first indicator light, the second indicator light and the third indicator light; the linear distance from the first indicator light to the indicator light display area is smaller than the linear distance from the second indicator light and the third indicator light to the indicator light display area;
the control circuit is used for controlling the first indicator light, the second indicator light and the third indicator light to enter a breathing lighting mode in the process that the television is switched from a standby state to a starting state;
the television also comprises a PCB (printed circuit board), and a first light-blocking piece and a second light-blocking piece which are arranged on the PCB, wherein the control circuit, the first indicator light, the second indicator light and the third indicator light are all arranged on the PCB; the first light-blocking piece is arranged on a connecting line of the first indicator light and the second indicator light and is positioned between the first indicator light and the first light superposition area, and the first light-blocking piece is used for weakening the light intensity emitted to the first light superposition area through the connecting line of the first indicator light and the second indicator light;
the first indicator light and the third indicator light form a second light superposition area on the indicator light display area, the second light superposition area is an area pointed by a connecting line of the first indicator light and the third indicator light on the indicator light area, the second light blocking piece is arranged on the connecting line of the first indicator light and the third indicator light and is positioned in the first indicator light and the second light superposition area, and the second light blocking piece is used for weakening light intensity emitted to the first light superposition area through the connecting line of the first indicator light and the third indicator light.
2. The television set as set forth in claim 1, wherein the control circuit is further configured to control the second indicator light and the third indicator light to enter a breath-out mode after the television set is turned on.
3. The television set of claim 2, wherein the control circuit is further configured to reduce the brightness of the first indicator light while controlling the second indicator light and the third indicator light to enter a breath-out mode.
4. The television set of claim 3, wherein the control circuit comprises a controller, a first drive circuit, and a second drive circuit, wherein,
the first driving circuit is used for driving the first indicator lamp to work based on the control of the controller;
and the second driving circuit is used for driving the second indicator light and the third indicator light to work based on the control of the controller.
5. The TV set as claimed in claim 4, wherein the first driving circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first diode, a second diode, a first triode, a second triode and a first MOS transistor; a first power supply input end of the first driving circuit is connected with one end of the first resistor; the other end of the first resistor is connected with the anode of the first diode; the cathode of the first diode is connected with the drain electrode of the first MOS tube; the grid electrode of the first MOS tube is connected with one end of the second resistor, and the source electrode of the first MOS tube is connected with the collector electrode of the first triode; the other end of the second resistor, the collector of the second triode and one end of the fourth resistor are connected; the other end of the fourth resistor is a second power supply input end of the first driving circuit; the emitting electrode of the first triode is grounded, and the base electrode of the first triode is connected with one end of the third resistor; the other end of the third resistor is connected with a first port of the controller; the base electrode of the second triode is connected with one end of the fifth resistor, and the emitting electrode of the second triode and the negative electrode of the second diode are grounded; the anode of the second diode is connected with one end of the sixth resistor; the other end of the fifth resistor and the other end of the sixth resistor are connected with a second port of the controller.
6. The television set according to claim 5, wherein the second driving circuit comprises a seventh resistor, an eighth resistor, a ninth resistor, a third transistor, a third diode, and a fourth diode; one end of the seventh resistor and one end of the eighth resistor are connected with the first power supply input end of the second driving circuit, and the other end of the seventh resistor is connected with the anode of the third diode; the other end of the eighth resistor is connected with the anode of the fourth diode; the negative electrode of the third diode is connected with the collector electrode of the third triode; the negative electrode of the fourth diode and the emitting electrode of the third triode are grounded, and the base electrode of the third triode is connected with one end of the ninth resistor; the other end of the ninth resistor is connected with a third port of the controller.
7. The television set according to claim 5, wherein the television set further comprises a fourth indicator light, and the first driving circuit is further configured to drive the fourth indicator light to operate in a process of switching the television set from the standby state to the power-on state based on the control of the controller.
8. The television set as set forth in claim 1, wherein the first light blocking member and the second light blocking member are electronic components of the control circuit.
9. The television set as described in claim 8, further comprising a light transmissive cover disposed over said television body, said light transmissive cover being said indicator display area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144960.3A CN108366453B (en) | 2018-02-11 | 2018-02-11 | Television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144960.3A CN108366453B (en) | 2018-02-11 | 2018-02-11 | Television receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108366453A CN108366453A (en) | 2018-08-03 |
| CN108366453B true CN108366453B (en) | 2020-04-28 |
Family
ID=63005621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144960.3A Active CN108366453B (en) | 2018-02-11 | 2018-02-11 | Television receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108366453B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104012105A (en) * | 2011-12-28 | 2014-08-27 | 索尼公司 | Display device, display control method, portable terminal device, and program |
| CN204559741U (en) * | 2015-03-31 | 2015-08-12 | 深圳Tcl新技术有限公司 | Indicating lamp device, display unit and television set |
| CN205103947U (en) * | 2015-11-17 | 2016-03-23 | 智慧方舟科技有限公司 | Status indicator lamp control circuit |
| CN206442559U (en) * | 2017-01-22 | 2017-08-25 | 湖南电将军新能源有限公司 | A kind of LED drive circuit |
-
2018
- 2018-02-11 CN CN201810144960.3A patent/CN108366453B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104012105A (en) * | 2011-12-28 | 2014-08-27 | 索尼公司 | Display device, display control method, portable terminal device, and program |
| CN204559741U (en) * | 2015-03-31 | 2015-08-12 | 深圳Tcl新技术有限公司 | Indicating lamp device, display unit and television set |
| CN205103947U (en) * | 2015-11-17 | 2016-03-23 | 智慧方舟科技有限公司 | Status indicator lamp control circuit |
| CN206442559U (en) * | 2017-01-22 | 2017-08-25 | 湖南电将军新能源有限公司 | A kind of LED drive circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108366453A (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7884556B2 (en) | Color-changing light array device | |
| US7489089B2 (en) | Color control system for color changing lights | |
| US20060132064A1 (en) | Burst pulse circuit for signal lights and method | |
| CN201081119Y (en) | Video apparatus status indicating lamp | |
| CN108366453B (en) | Television receiver | |
| US5866994A (en) | Illumination apparatus and frame to which the illumination apparatus is attached | |
| JP6456197B2 (en) | Image display system and image display method | |
| CN205232500U (en) | Armoured vehicle combination meter electrodeless double -colored change photosystem that is shaded with adjustable | |
| CN211184377U (en) | Intelligent lamp energy control system induced by light-operated delayer | |
| JP6291720B2 (en) | LED abnormality detection device | |
| US7372441B2 (en) | Burst pulse circuit for signal lights and method | |
| CN104442545A (en) | LED automotive lamp capable of preventing high beam | |
| CA2861374A1 (en) | Animated projection system | |
| CN202135370U (en) | Circuit structure of anti-dazzle LED flash lamp | |
| CN203223803U (en) | Lamp for self adapting to environmental illumination | |
| JP2012066605A (en) | Lighting dimming device for vehicle | |
| CN109451622B (en) | Method, device and system for controlling brightness change of LED lighting lamp | |
| JP2009037771A (en) | Flash electric bulb | |
| CN215297497U (en) | Backlight circuit and electric energy meter with same | |
| CN205510498U (en) | Lighting control circuit and STB | |
| CN219107709U (en) | Keyboard backlight brightness adjusting circuit, keyboard and electronic equipment | |
| CN210112329U (en) | LED lamp and lighting circuit and light control circuit thereof | |
| KR101178206B1 (en) | Rgb-combined illumination device and method for controlling the same | |
| US20140320035A1 (en) | Electronic device with led | |
| CN212064437U (en) | Touch type dimming and color mixing lamp with memory function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |