CN219512809U - Refrigerator and display panel thereof - Google Patents
Refrigerator and display panel thereof Download PDFInfo
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- CN219512809U CN219512809U CN202223440878.6U CN202223440878U CN219512809U CN 219512809 U CN219512809 U CN 219512809U CN 202223440878 U CN202223440878 U CN 202223440878U CN 219512809 U CN219512809 U CN 219512809U
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Abstract
The utility model discloses a display panel, comprising: a controller; the current control device is connected with the controller and can change the magnitude of current flowing through the current control device; the first end of the resistor is connected with the current control device, and the second end of the resistor is also connected with the current control device; the light-emitting device is connected with the second end of the resistor, and the light-emitting device, the resistor and the current control device are connected in the same loop; the controller is used for controlling the current flowing through the current control device so as to control the current flowing through the light emitting device. Therefore, in the brightness adjustment of the light emitting device, the light emitting device is not required to be controlled by generating a PWM signal through a specific PWM port, and the control mode is simple. And moreover, the current of the light-emitting device can be controlled by only one current control device, and the control structure is simple.
Description
Technical Field
The utility model relates to the field of household appliances, in particular to a refrigerator and a display panel thereof.
Background
The brightness of the display panel of the refrigerator is generally adjustable, and the refrigerator has multi-stage brightness adjustment and two-stage brightness adjustment, and the effect of adjusting the brightness of the LEDs is realized by adjusting the power supply voltage of the LEDs through a PWM control port of a singlechip.
In the above-mentioned brightness adjustment method, a plurality of triodes are generally required, and a PWM port of a single-chip microcomputer is required to generate a PWM signal for control, which is troublesome in control structure and control method.
Disclosure of Invention
The utility model provides a refrigerator and a display panel thereof, which have simple control structure and simple control mode.
A first aspect of the present utility model provides a display panel, comprising: a controller; the current control device is connected with the controller and can change the magnitude of current flowing through the current control device; the first end of the resistor is connected with the current control device, and the second end of the resistor is also connected with the current control device; the light-emitting device is connected with the second end of the resistor, and the light-emitting device, the resistor and the current control device are connected in the same loop; the controller is used for controlling the current flowing through the current control device so as to control the current flowing through the light emitting device.
In some embodiments, the current control device is a first triode, a base electrode of the first triode is connected with the controller, a first end of the resistor is connected with an emitter electrode of the first triode, and a second end of the resistor is connected with a collector electrode of the first triode; the controller is used for controlling the conduction of the first triode, so that the current flowing through the light emitting device is equal to the sum of the current flowing through the first triode and the resistor when the first triode is conducted, and the current flowing through the light emitting device is equal to the current flowing through the resistor when the first triode is not conducted.
In some embodiments, the light emitting device is a light emitting diode, an anode of the light emitting diode is connected to one of a collector and an emitter of the first triode, a cathode of the light emitting diode is grounded, and the other of the emitter and the collector of the first triode is connected to an anode of the power supply.
In some embodiments, the display panel further includes a second triode, a base electrode of the second triode is connected to a controller, and the controller is used for controlling conduction of the second triode; one of the collector and the emitter of the second triode is connected with the anode of the light emitting diode, and the other one of the collector and the emitter of the second triode is connected with the collector or the emitter of the first triode, so that the collector or the emitter of the first triode is connected with the anode of the light emitting diode through the second triode.
In some embodiments, the first triode is a PNP type triode, an emitter of the first triode is connected to a positive electrode of the power supply, and a collector of the first triode is connected to an anode of the light emitting diode; or the first triode is an NPN triode, the collector electrode of the first triode is connected with the positive electrode of the power supply, and the emitter electrode of the first triode is connected with the anode of the light emitting diode.
In some embodiments, the light emitting device is a light emitting diode, a cathode of the light emitting diode is connected to one of a collector and an emitter of the first triode, an anode of the light emitting diode is connected to a positive electrode of a power supply, and the other of the collector and the emitter of the first triode is grounded.
In some embodiments, the display panel further includes a third triode, a base electrode of the third triode is connected to a controller, and the controller is used for controlling conduction of the third triode; one of the collector and the emitter of the third triode is connected with the anode of the light emitting diode, and the other one of the collector and the emitter of the third triode is connected with the positive electrode of the power supply, so that the anode of the light emitting diode is connected with the positive electrode of the power supply through the third triode.
In some embodiments, the first triode is a PNP type triode, the collector of the first triode is grounded, and the emitter of the first triode is connected with the cathode of the light emitting diode; or the first triode is an NPN triode, the collector electrode of the first triode is connected with the cathode of the light-emitting diode, and the emitter electrode of the first triode is grounded.
In some embodiments, the display panel includes a double-eight nixie tube, the double-eight nixie tube includes sixteen light emitting diodes, and the controller controls the brightness of the double-eight nixie tube by controlling the on-off of the first triode.
Another aspect of the present utility model provides a refrigerator comprising a cabinet and a display panel according to any one of the above, wherein the display panel is used for displaying refrigerator working data.
The utility model has at least the following beneficial effects: the refrigerator and the display panel thereof provided by the utility model comprise a controller; the current control device is connected with the controller and can change the magnitude of current flowing through the current control device; the first end of the resistor is connected with the current control device, and the second end of the resistor is also connected with the current control device; the light-emitting device is connected with the second end of the resistor, and the light-emitting device, the resistor and the current control device are connected in the same loop; the controller is used for controlling the current flowing through the current control device so as to control the current flowing through the light emitting device. Therefore, in the brightness adjustment of the light emitting device, the light emitting device is not required to be controlled by generating a PWM signal through a specific PWM port, and the control mode is simple. And moreover, the current of the light-emitting device can be controlled by only one current control device, and the control structure is simple.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a display panel according to an embodiment of the present utility model;
fig. 2 is a circuit diagram of another embodiment of a display panel provided by the present utility model;
FIG. 3 is a circuit diagram of another embodiment of a display panel provided by the present utility model;
FIG. 4 is a circuit diagram of a display panel according to another embodiment of the present utility model;
FIG. 5 is a circuit diagram of a display panel according to another embodiment of the present utility model;
fig. 6 is a circuit diagram of a display panel according to another embodiment of the present utility model;
fig. 7 is a circuit diagram of a display panel according to another embodiment of the present utility model;
fig. 8 is a circuit diagram of a display panel according to another embodiment of the present utility model;
fig. 9 is a circuit diagram of a display panel according to another embodiment of the present utility model;
fig. 10 is a circuit diagram of a display panel according to still another embodiment of the present utility model;
FIG. 11 is a schematic diagram of a controller of an embodiment of a display panel according to the present utility model;
fig. 12 is a schematic view of a refrigerator according to an embodiment of the present utility model.
Reference numerals illustrate: 10. a display panel; 11. a controller; 12. a current control device; 121. a first triode; 13. a resistor; 14. a light emitting device; 141. a light emitting diode; 15. a second triode; 16. adjusting the resistance; 17. a third triode; 18. a fourth triode; 20. a refrigerator; 21. a box body.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The first aspect of the present utility model provides a display panel 10, and fig. 1 is a block diagram of an embodiment of the display panel 10 provided by the present utility model.
Referring to fig. 1, the display panel 10 includes: a controller 11, a current control device 12, a resistor 13, and a light emitting device 14.
Specifically, the controller 11 may control other components through voltage, for example, the controller 11 is a single-chip microcomputer, and other components are controlled through voltage output by pins of the single-chip microcomputer.
The current control device 12 is connected to the controller 11, and the current control device 12 is capable of changing the magnitude of the current flowing through itself. The controller 11 can control the current control device 12, and the current control device 12 changes the magnitude of the self current under the control of the controller 11, so that when the controller 11 changes the control parameter, the current control device 12 can correspondingly change the magnitude of the self current.
In some embodiments, the current control device 12 may change the magnitude of the current flowing through itself by changing the input voltage value parameter, the own resistance value parameter, the communication relationship between internal structures, and the like. At this time, the controller 11 can change the input voltage value parameter of the current control device, the own resistance value parameter, the communication relationship between the internal structures, and the like, and further change the current flowing through the current control device 12.
A first terminal of the resistor 13 is connected to the current control device 12 and a second terminal of the resistor 13 is also connected to the current control device 12. In some embodiments, the resistor 13 and the current control device 12 may be connected in parallel.
Specifically, the resistor 13 may be a constant value resistor or a variable resistance, for example, a sliding resistor, and is not particularly limited.
The light emitting device 14 is connected to a second terminal of the resistor 14, in which case the light emitting device 14 is also connected to the current control device 12. The light emitting device 14, the resistor 13 and the current control device 12 are connected in the same loop, at this time, one end of the current control device 12 and one end of the resistor 13 are connected with a power supply, and current is converged to the light emitting device 14 from the power supply through the branch where the current control device 12 and the resistor 13 are located. When current flows through the light emitting device 14, the light emitting device 14 emits light to achieve illumination of the display panel 10.
In combination with the above, the controller 11 is configured to control the magnitude of the current flowing through the current control device 12 to control the magnitude of the current flowing through the light emitting device 14. Specifically, the controller 11 is configured to control the current control device 12, and the current control device 12 changes the magnitude of the current flowing through itself under the control of the controller 11 to control the magnitude of the current flowing through the light emitting device 14.
It will be appreciated that the current flowing to the light emitting device 14 is equal to the sum of the currents flowing through the current control device 13 and the resistor 12. In the case where the magnitude of the current flowing through the resistor 13 is unchanged, when the controller 11 controls the current control device 12 to change its current, the current flowing through the light emitting device 14 is changed. When the current flowing through the light emitting device 14 is large, the luminance of the light emitting device 14 is high, and when the current flowing through the light emitting device 14 is small, the luminance of the light emitting device 14 is low.
In summary, the display panel 10 provided by the present utility model controls the magnitude of the current flowing through the current control device 12 through the controller 11, so as to control the current flowing through the light emitting device 14, and further control the light emitting brightness of the light emitting device 14.
Fig. 2 is a circuit diagram of an embodiment of the display panel 10 provided by the present utility model.
Referring to fig. 2, in some embodiments, the current control device 12 is a first triode 121, a base b of the first triode 121 is connected to the controller 11, a first end of the resistor 13 is connected to an emitter e of the first triode, and a second end of the resistor 13 is connected to a collector c of the first triode 121.
The controller 12 is configured to control the conduction of the first transistor 121 such that the current flowing through the light emitting device 14 is equal to the sum of the current flowing through the first transistor 121 and the resistor 13 when the first transistor 121 is on, and the current flowing through the light emitting device 14 is equal to the current flowing through the resistor 13 when the first transistor 121 is off.
Specifically, the light emitting device 14 is a light emitting diode 141, an anode of the light emitting diode 141 is connected to one of a collector c and an emitter e of the first triode 121, a cathode of the light emitting diode 141 is grounded, and the other of the emitter e and the collector c of the first triode is connected to an anode VCC of a power supply.
Referring to fig. 2, in some embodiments, the first transistor is a PNP-type transistor, an emitter e of the first transistor is connected to a positive power supply VCC, and a collector c of the first transistor is connected to an anode of the light emitting diode.
In combination with the above embodiment of controlling the first transistor 121 to be turned on by the controller 11, when the voltage of the base b of the first transistor 121 is controlled by the controller 11 to be greater than the first preset voltage, the first transistor 121 is turned on to generate a current flowing to the light emitting diode 141.
Fig. 3 is a circuit diagram of another embodiment of the display panel 10 provided by the present utility model.
Referring to fig. 3, in some embodiments, the first triode is an NPN-type triode, the collector c of the first triode is connected to the positive power supply VCC, and the emitter e of the first triode is connected to the anode of the light emitting diode.
In combination with the above embodiment of controlling the first transistor 121 to be turned on by the controller 11, when the voltage of the base b of the first transistor 121 is controlled by the controller 11 to be smaller than the second preset voltage, the first transistor 121 is turned on to generate a current flowing to the light emitting diode 141.
Fig. 4 is a circuit diagram of a display panel 10 according to another embodiment of the present utility model.
Referring to fig. 4, in some embodiments, the display panel 10 further includes a second transistor 15, a base b of the second transistor 15 is connected to the controller 11, and the controller 11 is configured to control the conduction of the second transistor.
Specifically, one of the collector c and the emitter e of the second transistor 15 is connected to the anode of the light emitting diode 141, and the other of the collector c and the emitter e of the second transistor 15 is connected to the collector c or the emitter e of the first transistor 121 such that the collector c or the emitter e of the first transistor 121 is connected to the anode of the light emitting diode 141 through the second transistor 15.
Fig. 4 shows that the emitter e of the second transistor 15 is connected to the anode of the light emitting diode 141, and the collector c of the second transistor 15 is connected to the collector c of the first transistor 121, so that the collector c of the first transistor 121 is connected to the anode of the light emitting diode 14 through the second transistor 15. In this embodiment, the second transistor 15 is an NPN type transistor.
Of course, in other embodiments, the connection manner of the second transistor 15 and the first transistor 121 and the led is not limited to the above embodiments. For example, in the circuit shown in fig. 4, the collector c of the second triode 15 may be connected to the emitter e of the first triode 121, and the first triode 121 is an NPN type triode. For another example, the second transistor 15 may be a PNP type transistor in which a collector c of the second transistor 15 is connected to an anode of the light emitting diode 141 and an emitter e of the second transistor 15 is connected to one of the emitter e or the collector c of the first transistor 121.
The light emitting diode 141 can be further controlled by the provision of the second transistor 15. The light emitting diode 141 can be turned on to emit light when the second transistor 15 is turned on. When the second transistor 15 is turned on and the first transistor 121 is turned on, the brightness flowing through the light emitting diode 141 is high, and the light emitting diode 141 emits light with high brightness. When the second transistor 15 is turned on and the first transistor 121 is turned off, the brightness of the light emitted from the light emitting diode 141 is low, and the light emitting diode 141 emits light with low brightness.
In combination with the arrangement of the first transistor 121 and the second transistor 15, the controller 11 controls the second transistor 15 to be turned off, and the light emitting diode 141 does not emit light. When the controller 11 controls the second transistor 15 to be turned on and controls the first transistor 121 to be turned on, the light emitting diode 141 emits light with high brightness. When the controller 11 controls the second transistor 15 to be conductive and controls the first transistor 121 to be non-conductive, the light emitting diode 141 emits light with low brightness.
Fig. 5 is a circuit diagram of a further embodiment of the display panel 10 according to the present utility model, and fig. 6 is a circuit diagram of a further embodiment of the display panel 10 according to the present utility model.
Referring to fig. 5, in some embodiments, the display panel 10 further includes a regulating resistor 16, where the regulating resistor 16 is disposed between the first transistor 121 and the second transistor 15, and the regulating resistor 16 regulates the current in the whole loop to ensure that the light emitting diode 141 can emit light normally.
In some embodiments, the number of leds 141 may be multiple, such as the three shown in fig. 6, in conjunction with fig. 6. Each of the light emitting diodes 141 is provided with a second transistor 16 to be connected to the first transistor 121 through the second transistor 16. At this time, the controller 11 can control the light emission of the plurality of light emitting diodes 141 through the first transistor 121 and the second transistor 15.
Fig. 7 is a circuit diagram of a display panel 10 according to another embodiment of the present utility model.
Referring to fig. 7, in some embodiments, a cathode of the light emitting diode 141 is connected to one of the collector c and the emitter e of the first transistor 121, an anode of the light emitting diode 141 is connected to the positive power supply VCC, and the other of the collector c and the emitter e of the first transistor 121 is grounded.
In this embodiment, the first triode 121 and the resistor 13 are disposed at the cathode terminal of the light emitting diode 141, and the control manner of the first triode 121 on the light emitting diode 14 is the same as the control manner corresponding to the first triode 121 disposed at the anode terminal of the light emitting diode 141 in the above embodiment.
In fig. 7, the cathode of the light emitting diode 141 is shown connected to the emitter e of the first triode 121, the anode of the light emitting diode 141 is connected to the positive power supply VCC, and the collector c of the first triode 121 is grounded. At this time, the first transistor 121 is a PNP type transistor.
In other embodiments, the arrangement of fig. 7 is not limited, for example, the cathode of the light emitting diode 141 is connected to the collector c of the first triode 121, the anode of the light emitting diode 141 is connected to the positive power supply VCC, and the emitter e of the first triode 121 is grounded. At this time, the first transistor 121 is an NPN type transistor.
Fig. 8 is a circuit diagram of a display panel 10 according to another embodiment of the present utility model.
In combination with fig. 8 and the embodiment in which the first transistor 121 is disposed at the cathode terminal of the light emitting diode 141, in some embodiments, the display panel 10 further includes a third transistor 17, the base b of the third transistor 17 is connected to the controller 11, and the controller 11 is configured to control the conduction of the third transistor 17. At this time, the function of the third transistor 17 corresponds to the function of the second transistor 15 in the above embodiment, and reference is made to the description of the above embodiment.
Specifically, one of the collector c and the emitter e of the third transistor 17 is connected to the anode of the light emitting diode 141, and the other of the collector c and the emitter e of the third transistor 17 is connected to the power supply positive electrode VCC such that the anode of the light emitting diode 141 is connected to the power supply positive electrode VCC through the third transistor 17.
As shown in fig. 7, the emitter e of the third triode 17 is connected to the anode of the light emitting diode 141, and the collector c of the third triode 17 is connected to the positive power supply VCC. At this time, the third transistor 17 is an NPN type transistor. Of course, in other embodiments, the collector c of the third triode 17 is connected to the anode of the light emitting diode 141, and the emitter e of the third triode 17 is connected to the positive power supply VCC, and the type of the third triode 17 is a PNP type triode.
In an embodiment in which the first transistor 121 is disposed at the cathode end of the light emitting diode 141, the specific arrangement manner of the first transistor 121 may be:
the first triode 121 is a PNP type triode, the collector c of the first triode 121 is grounded, and the emitter e of the first triode 121 is connected to the cathode of the light emitting diode 141, as shown in fig. 8. Or, the first triode 121 is an NPN type triode, the collector c of the first triode 121 is connected to the cathode of the light emitting diode 141, and the emitter e of the first triode 121 is grounded.
Fig. 9 is a circuit diagram of a display panel 10 according to another embodiment of the present utility model.
In an embodiment in which the first transistor 121 is disposed at the cathode end of the light emitting diode 141 in conjunction with fig. 9, the number of the light emitting diodes 141 may also be plural, and fig. 9 exemplarily shows that the number of the light emitting diodes 141 is three. For a specific description of the embodiment in which the plurality of leds 141 are disposed, reference may be made to the related content of the embodiment in which the first transistor 121 is disposed at the anode terminal of the leds 141, which is not described herein.
Fig. 10 is a circuit diagram of a display panel 10 according to another embodiment of the present utility model.
In some embodiments, the display panel 10 includes a double-eight nixie tube, the double-eight nixie tube includes sixteen leds 141, and the controller 11 controls the brightness of the double-eight nixie tube by controlling the on/off of the first transistor 121.
Specifically, only eight leds 141 are shown in fig. 10, seven of which 141 correspond to the display of the value "8", and one led 141 corresponds to the display of the decimal point. The same is true for the other eight light emitting diodes 141, so that a double eight nixie tube composed of sixteen light emitting diodes 141 can display numerals of 0 to 99.
More specifically, the display panel 10 further includes two fourth triodes 18, eight light emitting diodes 141 are respectively connected to one fourth triode 18, the remaining 8 light emitting diodes 141 are respectively connected to the other fourth triode 18, and the fourth triode 18 is connected to the first triode 121 and the resistor 13. At this time, the fourth transistor 18 is used for controlling the 8 light emitting diodes 141, and the first transistor 121 is used for controlling the brightness of the light emitting diodes 141. And, each light emitting diode 141 is correspondingly provided with a triode for individually controlling whether it is lighted.
It should be understood that when the fourth transistor 18 is turned on and the corresponding individually controlled transistor of the light emitting diode 141 is turned on, the light emitting diode 141 can be turned on, and the first laser 121 can perform brightness adjustment on the turned-on light emitting diode 141.
Fig. 11 is a schematic structural diagram of the controller 11 of an embodiment of the display panel 10 provided by the present utility model.
In some embodiments, the controller 11 is a single-chip microcomputer having a plurality of pins, which fig. 11 shows as ten. The first triode 121 in the above embodiment may be connected to one pin of the singlechip, and then the high level or the low level is output through the pin to control the first triode 121. Therefore, in the control corresponding to the first transistor 121, only the output pin for outputting the high and low level is required, and the output pin for outputting the PWM signal is not required.
A second aspect of the present utility model provides a refrigerator 20, and fig. 12 is a schematic structural diagram of an embodiment of the refrigerator 20 provided by the present utility model.
Referring to fig. 12, in particular, the refrigerator 20 includes a case 21 and a display panel 10 according to any one of the above, and the display panel 10 is used to display operation data of the refrigerator 20, such as temperature, humidity, etc.
Specifically, the case 21 includes a door body provided at the front of the case 21, and the display panel 10 may be provided on the door body so as to be convenient for viewing display data.
The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the utility model.
Claims (10)
1. A display panel, comprising:
a controller;
the current control device is connected with the controller and can change the magnitude of current flowing through the current control device;
the first end of the resistor is connected with the current control device, and the second end of the resistor is also connected with the current control device;
the light-emitting device is connected with the second end of the resistor, and the light-emitting device, the resistor and the current control device are connected in the same loop;
the controller is used for controlling the current flowing through the current control device so as to control the current flowing through the light emitting device.
2. The display panel of claim 1, wherein the display panel comprises,
the current control device is a first triode, the base electrode of the first triode is connected with the controller, the first end of the resistor is connected with the emitter electrode of the first triode, and the second end of the resistor is connected with the collector electrode of the first triode;
the controller is used for controlling the conduction of the first triode, so that the current flowing through the light emitting device is equal to the sum of the current flowing through the first triode and the resistor when the first triode is conducted, and the current flowing through the light emitting device is equal to the current flowing through the resistor when the first triode is not conducted.
3. The display panel of claim 2, wherein the display panel comprises,
the light emitting device is a light emitting diode, the anode of the light emitting diode is connected with one of the collector and the emitter of the first triode, the cathode of the light emitting diode is grounded, and the other one of the emitter and the collector of the first triode is connected with the anode of the power supply.
4. The display panel according to claim 3, wherein,
the display panel also comprises a second triode, wherein the base electrode of the second triode is connected with the controller, and the controller is used for controlling the conduction of the second triode;
one of the collector and the emitter of the second triode is connected with the anode of the light emitting diode, and the other one of the collector and the emitter of the second triode is connected with the collector or the emitter of the first triode, so that the collector or the emitter of the first triode is connected with the anode of the light emitting diode through the second triode.
5. The display panel according to claim 3, wherein,
the first triode is a PNP type triode, an emitting electrode of the first triode is connected with the positive electrode of the power supply, and a collecting electrode of the first triode is connected with the anode of the light emitting diode; or, the first triode is an NPN triode, the collector electrode of the first triode is connected with the positive electrode of the power supply, and the emitter electrode of the first triode is connected with the anode of the light-emitting diode.
6. The display panel of claim 2, wherein the display panel comprises,
the light emitting device is a light emitting diode, a cathode of the light emitting diode is connected with one of a collector and an emitter of the first triode, an anode of the light emitting diode is connected with a positive electrode of a power supply, and the other one of the collector and the emitter of the first triode is grounded.
7. The display panel of claim 6, wherein the display panel comprises,
the display panel also comprises a third triode, wherein the base electrode of the third triode is connected with the controller, and the controller is used for controlling the conduction of the third triode;
one of the collector and the emitter of the third triode is connected with the anode of the light emitting diode, and the other one of the collector and the emitter of the third triode is connected with the positive electrode of the power supply, so that the anode of the light emitting diode is connected with the positive electrode of the power supply through the third triode.
8. The display panel of claim 7, wherein the display panel comprises,
the first triode is a PNP type triode, the collector electrode of the first triode is grounded, and the emitter electrode of the first triode is connected with the cathode of the light emitting diode; or the first triode is an NPN triode, the collector of the first triode is connected with the cathode of the light-emitting diode, and the emitter of the first triode is grounded.
9. The display panel according to claim 3, wherein,
the display panel comprises a double-eight nixie tube, the double-eight nixie tube comprises sixteen light emitting diodes, and the controller controls the brightness of the double-eight nixie tube by controlling the on-off of the first triode.
10. A refrigerator comprising a cabinet and a display panel according to any one of claims 1 to 9 for displaying refrigerator operating data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440878.6U CN219512809U (en) | 2022-12-21 | 2022-12-21 | Refrigerator and display panel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440878.6U CN219512809U (en) | 2022-12-21 | 2022-12-21 | Refrigerator and display panel thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219512809U true CN219512809U (en) | 2023-08-11 |
Family
ID=87549145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223440878.6U Active CN219512809U (en) | 2022-12-21 | 2022-12-21 | Refrigerator and display panel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219512809U (en) |
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2022
- 2022-12-21 CN CN202223440878.6U patent/CN219512809U/en active Active
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