CN111724721A - Fluorescent display screen device driven by integrated IC (integrated circuit) and control method - Google Patents
Fluorescent display screen device driven by integrated IC (integrated circuit) and control method Download PDFInfo
- Publication number
- CN111724721A CN111724721A CN202010676341.6A CN202010676341A CN111724721A CN 111724721 A CN111724721 A CN 111724721A CN 202010676341 A CN202010676341 A CN 202010676341A CN 111724721 A CN111724721 A CN 111724721A
- Authority
- CN
- China
- Prior art keywords
- key information
- diode
- mcu
- capacitor
- display screen
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/26—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using storage tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
Abstract
The invention relates to a fluorescent display screen device integrated with IC drive and a control method, relating to the technical field of fluorescent display screens, comprising a display screen body, an IC drive circuit connected with the display screen body, an input panel connected with the display screen body, and also comprising: the acquisition unit is used for acquiring key information corresponding to the input panel; the storage unit is connected with the acquisition unit, is used for acquiring and storing the key information corresponding to the input panel, is connected with the MCU of the electric equipment, reads the key information recorded in the storage unit at a set frequency by the MCU of the electric equipment, and responds to the key information to output a preset control instruction; the IC drive circuit is connected with the MCU of the electric equipment to receive and respond to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information. The invention has the effect of reducing the load of the MCU of the electric equipment so as to reduce the phenomena of jamming and downtime of the MCU, thereby facilitating the normal use of the electric equipment.
Description
Technical Field
The invention relates to the technical field of fluorescent display screens, in particular to a fluorescent display screen device integrated with IC (integrated circuit) drive and a control method.
Background
The vacuum fluorescent display screen is called VFD for short, is a low-energy electronic luminous display device, and its working principle is similar to that of CRT. VFDs have the advantages of incomparable Liquid Crystal Displays (LCDs) where ambient brightness changes widely and low power consumption is not a critical requirement, and are therefore widely used in audio and video equipment, home electronics, automotive instruments, office equipment, instrumentation, and the like.
The principle of VFD is: when the filament is heated to a set temperature, the filament starts to emit thermal electrons, if the filament is set to zero potential, when positive voltage is applied to the grid and the anode, the thermal electrons are accelerated to pass through the grid and bombard the anode, so that the fluorescent powder on the grid emits light. If the voltages applied at the gate and anode are zero or negative, hot electrons do not converge to the anode, resulting in no light emission from the corresponding arc segment. And a positive voltage is simultaneously applied to the grid and the anode corresponding to the arc segment desired to be displayed, so that the desired character or figure can be displayed.
The existing VFD generally adopts a display driving mode of dynamic driving, so that an IC driving circuit is needed, and an MCU of electric equipment such as a sound system and the like controls the VFD to display corresponding characters or graphs through the IC driving circuit. Meanwhile, the MCU of the electric equipment needs to scan and acquire signals input by keys on the electric equipment, such as volume adjusting keys and the like, so as to respond to the operation instruction of a user and control the VFD to adjust the characters or the graphs to be displayed through the IC drive circuit.
The above prior art solutions have the following drawbacks: the existing fluorescent display screen device generally scans and acquires signals input by keys on the electric equipment through the MCU of the electric equipment, when the number of the keys on the electric equipment is large, the number of the keys which need to be scanned by the MCU of the electric equipment is correspondingly increased, so that the load of the MCU is increased, the phenomena of jamming and downtime of the MCU are easy to occur, and the normal use of the electric equipment is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide a fluorescent display screen device driven by an integrated IC, which can reduce the load of an MCU of an electric device and reduce the phenomena of jamming and downtime of the MCU, thereby facilitating the normal use of the electric device.
The first invention is realized by the following technical scheme: the utility model provides an integrated IC driven fluorescence display screen device, includes the display screen body, with this body coupling's of display screen IC drive circuit and with this body coupling's of display screen input panel, still includes: the acquisition unit is used for acquiring key information corresponding to the input panel;
the storage unit is connected with the acquisition unit, is used for acquiring and storing the key information corresponding to the input panel, is connected with the MCU of the electric equipment, reads the key information recorded in the storage unit at a set frequency by the MCU of the electric equipment, and responds to the key information to output a preset control instruction;
the IC drive circuit is connected with the MCU of the electric equipment to receive and respond to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information.
By adopting the technical scheme, when a user clicks the keys of the equipment, the key information is collected and stored in the storage unit through the collection unit, the MCU of the electric equipment reads the key information in the storage unit at intervals, and outputs preset control instructions according to the received key information, so that the control equipment can open or close corresponding functions.
The present invention in a preferred example may be further configured to: the display screen body comprises a sealed shell with vacuum inside, and the IC drive circuit is positioned in the sealed shell.
By adopting the technical scheme, the vacuum environment in the sealed shell can prevent the circuits, filaments, electric elements and the like of the IC driving circuit from being oxidized, thereby prolonging the service life of the IC driving circuit and improving the stability; the IC drive circuit and the fluorescent display screen are integrated, so that the problem of compatibility can be reduced, the occupied volume of the fluorescent display screen and the IC drive circuit on the installed equipment is reduced, and the lightweight of the equipment is realized.
The present invention in a preferred example may be further configured to: the memory unit is connected with an erasing subunit, the erasing subunit erases the key information in the memory unit at a preset frequency, and the erasing subunit erases the key information in the memory unit when the MCU of the electric equipment reads the key information recorded in the memory unit.
By adopting the technical scheme, the storage space of the storage unit is limited, and the workload of single scanning of the MCU is increased when the key information is increased, so that the key information in the storage unit is erased at regular time by the erasing subunit, and the erasing operation is set after the MCU of the electric equipment reads the key information, so that the situation that the key information is erased by mistake to cause no response of the equipment is avoided, and the normal realization of the equipment function is prevented from being influenced.
The present invention in a preferred example may be further configured to: the set frequency of the MCU of the electric equipment for reading the key information is equal to the integral multiple of the preset frequency of the erasing sub-unit for erasing the key information.
By adopting the technical scheme, the erasing operation frequency of the erasing subunit is lower than the reading frequency of the MCU of the electric equipment, so that the workload of the MCU is reduced, the load of the MCU is reduced, and the read set frequency is equal to the integral multiple of the erased preset frequency, so that the erased key information is always the read key information, the error rate is reduced, and the stability is improved.
The present invention in a preferred example may be further configured to: the storage unit comprises a numbering subunit, the numbering subunit is used for numbering the key information according to the key information acquisition sequence, when the MCU of the electric equipment reads the key information of one or more numbers, the corresponding numbers are obtained and recorded, when the MCU reads the key information again, only the key information corresponding to the unrecorded numbers is read, and the corresponding preset control instruction is output.
By adopting the technical scheme, the numbering subunit numbers the key information stored in the storage unit in sequence, so that a plurality of key information can be distinguished, confusion is avoided, the MCU of the electric equipment can screen the key information in the storage unit each time before the erasing subunit erases all the key information, the key information corresponding to the recorded number is screened out, namely, only the newly stored key information is read, so that the storage space of the storage unit is fully utilized, the erasing frequency is reduced, the power consumption is reduced, and meanwhile, the normal realization of the function of the equipment is prevented from being influenced by repeated operation of the key information.
The present invention in a preferred example may be further configured to: the IC driving circuit comprises a control module and a boosting module;
the boosting module comprises a first diode, a second diode, a third diode and a fourth diode which are sequentially connected in series in a power-on loop, and further comprises a first capacitor, a second capacitor, a first grounding capacitor and a second grounding capacitor;
the anode of the first diode is connected with the voltage input end Vin, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the third diode, the cathode of the third diode is connected with the anode of the fourth diode, and the cathode of the fourth diode is used for connecting the anode and the grid of the display screen body;
one end of the first capacitor is connected to the connection point of the first diode and the second diode, and the other end of the first capacitor is connected with the control module; one end of the second capacitor is connected to the connection point of the first diode and the second diode, and the other end of the second capacitor is connected to the connection point of the third diode and the fourth diode; one end of the first grounding capacitor is connected to the connection point of the second diode and the third diode, and the other end of the first grounding capacitor is grounded; one end of the second grounding capacitor is connected to the cathode of the fourth diode, and the other end of the second grounding capacitor is grounded;
the control module is used for controlling the electric potential of one end of the first capacitor so as to control the first capacitor to charge or discharge.
By adopting the technical scheme, the control module controls the first capacitor to be fully charged and then to be discharged, when the first capacitor is discharged, because the cathode of the second diode simultaneously inputs the current of the voltage input end Vin and the first capacitor, the potential of the first capacitor rises to a set value, and the potential of a node between the second diode and the third diode rises, so that the voltage input of the anode and the grid of the display screen body rises; meanwhile, the potential of a node between the third diode and the fourth diode rises, the potentials of one ends of the first grounding capacitor and the second grounding capacitor rise and start to be charged, and the potential difference of the two ends of the second capacitor increases; when the first capacitor is charged again, the potential between the first diode and the second diode is reduced to the lowest level, and at the moment, the first grounding capacitor charges the second capacitor, so that the potential difference of the second capacitor reaches the maximum level; when the first capacitor discharges again, the second capacitor discharges simultaneously, and the node between the third diode and the fourth diode inputs the current of the voltage input end Vin, the first capacitor and the second capacitor simultaneously, so that the voltage of the anode and the grid of the fluorescent display screen continues to be increased, and the effect of boosting a direct current voltage signal is achieved.
The present invention in a preferred example may be further configured to: the control module comprises an oscillation signal output submodule, a first switch element and a second switch element, wherein the oscillation signal output submodule is used for outputting an oscillation signal, the control end of the first switch element is connected with the oscillation signal output submodule to receive the oscillation signal, the input end of the first switch element is connected with a voltage input end Vin, and the output end of the first switch element is connected with one end of a first capacitor; the control end of the second switch element is connected with the oscillation signal output submodule to receive the oscillation signal, the input end of the second switch element is connected with the output end of the first switch element, the output end of the second switch element is grounded, the second switch element is cut off when the oscillation signal controls the first switch element to be switched on, and the first switch element is cut off when the oscillation signal controls the second switch element to be switched on.
By adopting the technical scheme, when the oscillation signal controls the conduction of the second switch element, the first switch element is cut off, one end of the first capacitor is grounded, the voltage input end Vin charges the first capacitor, when the oscillation signal controls the conduction of the first switch element, the second switch element is cut off, the first capacitor discharges to enable the potential of a node between the second diode and the third diode to rise, the potential difference is generated at two ends of the second capacitor and starts to charge, the potentials of one end of the first grounded capacitor and one end of the second grounded capacitor rise, when the oscillation signal controls the conduction of the second switch element again and the first switch element is cut off, the first capacitor charges again, the first grounded capacitor charges the second capacitor at the moment, the potential difference of the second capacitor reaches the maximum, when the oscillation signal controls the conduction of the first switch element again and the cut off of the second switch element, the voltage input end Vin, the potential difference of the third diode and the fourth diode are input at the same time, The current of the first capacitor and the second capacitor enables the voltage of the anode and the grid of the fluorescent display screen to be continuously increased, and therefore the effect of boosting a direct current voltage signal is achieved.
The present invention in a preferred example may be further configured to: the first switch element adopts an NPN type triode, and the second switch element adopts a PNP type triode.
By adopting the technical scheme, when the voltage signals input by the base electrode of the NPN type triode and the base electrode of the PNP type triode are inconsistent, the conducting or stopping states of the base electrode of the NPN type triode and the PNP type triode are opposite, namely the PNP type triode is stopped when the NPN type triode is conducted, and the NPN type triode is stopped when the PNP type triode is conducted, so that the charging or discharging state of the first capacitor is switched, and the effect of boosting the direct-current voltage signal is achieved.
Aiming at the defects in the prior art, the second purpose of the invention is to provide a control method which has the characteristics of reducing the load of the MCU of the electric equipment so as to reduce the phenomena of jamming and downtime of the MCU, thereby facilitating the normal use of the electric equipment.
A control method, which applies the fluorescent display screen device driven by the integrated IC, comprises the following steps: collecting key information corresponding to an input panel;
acquiring and storing key information corresponding to an input panel;
the MCU of the preset electric equipment is controlled to read the key information recorded in the storage unit at a set frequency and respond to the key information to output a preset control instruction;
the preset IC drive circuit receives and responds to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information.
By adopting the technical scheme, when a user clicks the keys of the equipment, the key information is collected and stored in the storage unit through the collection unit, the MCU of the electric equipment reads the key information in the storage unit at intervals, and outputs the preset control instruction according to the received key information, so that the control equipment can open or close the corresponding functions.
The present invention in a preferred example may be further configured to: also comprises the following steps: when the storage unit receives the key information, the switching signal is output to the MCU of the preset electric equipment, when the MCU of the electric equipment receives the switching signal, the set frequency for reading the key information in the storage unit is increased to the working frequency, if the MCU does not receive the switching signal within the set time, the set frequency is reduced to the dormancy frequency, and the working frequency is higher than the dormancy frequency.
By adopting the technical scheme, when a user operates equipment comprising the fluorescent display screen device, the time for using the keys is generally concentrated in a certain period of time, namely a plurality of pieces of key information are relatively concentrated, and the storage unit receives the key information and outputs a switching signal to the MCU, so that the set frequency of the MCU is improved, a set time is prolonged, the response efficiency of the MCU is improved, the delay of key feedback is reduced, and the use experience of the user is improved; when the key information is not received by the storage unit after the set time is exceeded, the user has no key requirement temporarily, and the MCU does not receive the switching signal at the moment, so that the set frequency is reduced to the sleep frequency, the load of the MCU is reduced, and the power consumption is reduced.
In summary, the invention includes at least one of the following beneficial technical effects:
the key information is collected by the collecting unit and stored in the storage unit, the MCU reads the key information in the storage unit at intervals and outputs a preset control instruction according to the received key information, so that the control equipment can open or close corresponding functions, compared with a conventional mode that the MCU directly scans keys to obtain the key information, the added storage unit can store a plurality of key information, so that the occupation of an I/O (input/output) port of the MCU is reduced, the load of the MCU is reduced, the phenomena of jamming and breakdown of the MCU are reduced, and the normal use of the electric equipment is facilitated;
the vacuum environment in the sealed shell can prevent the circuits, the electric elements and the like of the IC driving circuit from being oxidized, thereby prolonging the service life of the IC driving circuit and improving the stability; the IC drive circuit and the fluorescent display screen are integrated, so that the problem of compatibility can be reduced, the occupied volume of the fluorescent display screen and the IC drive circuit on the installed equipment is reduced, and the light weight of the equipment is realized;
the control module controls the first capacitor to charge and discharge so as to raise the cathode potential of the second triode and increase the voltage input of the anode and the grid of the display screen body; meanwhile, the electric potentials of one ends of the first grounding capacitor and the second grounding capacitor are increased and start to be charged, and the electric potential difference of the two ends of the second capacitor is increased; when the first capacitor is charged again, the first grounding capacitor charges the second capacitor, so that the potential difference of the second capacitor reaches the maximum; when the first capacitor discharges again, the second capacitor discharges simultaneously, and the cathode of the third diode inputs the current of the voltage input end Vin, the first capacitor and the second capacitor simultaneously, so that the voltage of the anode and the grid of the fluorescent display screen continues to be increased, and the effect of boosting a direct current voltage signal is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a schematic circuit diagram of the present embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the fluorescent display screen device integrated with IC driving disclosed by the invention can reduce the load of the MCU of the electric equipment and reduce the stutter and downtime phenomena of the MCU, thereby facilitating the normal use of the electric equipment. The display screen body is in a square strip shape and comprises a filament, an anode circuit, a grid electrode and the like, the filament, the anode circuit, the grid electrode and the like and is used for displaying characters or graphs, the input panel is used for acquiring key information generated by triggering mechanical keys or virtual keys on the input panel by a user, the MCU arranged in the electric equipment controls the IC driving circuit according to the key information, and the IC driving circuit controls the display screen body to display corresponding characters or graphs.
The display screen body still includes sealed shell, and sealed shell adopts glass material, and inside vacuums out, and IC drive circuit, filament, anode line, grid etc. all are located sealed shell. The circuit of the IC driving circuit can be prevented from being oxidized in the vacuum environment, and compared with a traditional mounting mode with an external IC driving circuit, the vacuum environment has the characteristics of prolonging the service life of the IC driving circuit and improving the stability. And the IC drive circuit and the fluorescent display screen are integrated, so that the compatibility problem caused by matching with other IC drive circuits can be reduced, the occupied volume of the fluorescent display screen and the IC drive circuit on the installed equipment is reduced, and the light weight and the portability of the installed equipment are conveniently realized.
Referring to fig. 1 and 2, the IC driving circuit includes a control module and a boost module. The control module comprises an oscillation signal output submodule, a first switch element and a second switch element, the oscillation signal output submodule is used for outputting an oscillation signal, a single chip microcomputer or an MCU on electric equipment can be adopted for outputting the oscillation signal, and the oscillation signal is a square wave signal in the embodiment. The first switching element adopts an NPN type triode Q1, the second switching element adopts a PNP type triode Q2, the base electrode of the NPN type triode Q1 is connected with the oscillation signal output submodule to receive the oscillation signal, the collector electrode of the NPN type triode Q1 is connected with the voltage input end Vin, and the emitter electrode of the NPN type triode Q3526 is connected with one end of the first capacitor C1. And the base electrode of the PNP type triode Q2 is connected with the oscillation signal output submodule to receive the oscillation signal, the collector electrode of the PNP type triode Q2 is connected with the emitter electrode of the NPN type triode Q1, and the emitter electrode of the PNP type triode Q2 is grounded. According to the characteristics of the NPN transistor and the PNP transistor, the PNP transistor Q2 is turned off when the oscillation signal controls the NPN transistor Q1 to be turned on, and the NPN transistor Q1 is turned off when the oscillation signal controls the PNP transistor Q2 to be turned on.
The boosting module comprises a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4 which are sequentially connected in series in a power-on loop, wherein the anode of the first diode D1 is connected with a voltage input end Vin, the cathode of the first diode D1 is connected with the anode of the second diode D2, the cathode of the second diode D2 is connected with the anode of the third diode D3, the cathode of the third diode D3 is connected with the anode of the fourth diode D4, and the cathode of the fourth diode D4 is used for connecting the anode of the display screen body and the grid VH.
The boost module further includes a first capacitor C1, a second capacitor C2, a first ground capacitor C3, and a second ground capacitor C4. One end of the first capacitor C1 is connected to the connection point of the first diode D1 and the second diode D2, and the other end thereof is connected to the emitter of the NPN-type triode Q1; one end of the second capacitor C2 is connected to the connection point of the first diode D1 and the second diode D2, and the other end thereof is connected to the connection point of the third diode D3 and the fourth diode D4. One end of the first grounding capacitor C3 is connected to the connection point of the second diode D2 and the third diode D3, and the other end is grounded; one end of the second ground capacitor C4 is connected to the cathode of the fourth diode D4, and the other end is grounded.
When the oscillation signal controls the PNP transistor Q2 to turn on, the NPN transistor Q1 is turned off, one end of the first capacitor C1 is grounded, and the other end is connected to the voltage input terminal Vin and starts to charge, when the oscillation signal controls the NPN transistor Q1 to turn on, the PNP transistor Q2 is turned off, and at this time, the potential of one end of the first capacitor C1 rises and starts to discharge, and since the cathode of the second diode D2 inputs the current of the voltage input terminal Vin and the first capacitor C1 at the same time, the potential rises to a set value, and if the voltage input terminal Vin is 12V, the set value is 20-24V. At this time, the potential of the node between the second diode D2 and the third diode D3 rises, so that the voltage VH between the anode and the gate of the fluorescent display screen rises.
Meanwhile, the potential of the node between the third diode D3 and the fourth diode D4 rises, and at this time, the potentials of one ends of the first grounded capacitor C3 and the second grounded capacitor C4 both rise and start to be charged, and the potential difference between the two ends of the second capacitor C2 increases. And when the first capacitor C1 is charged again, the voltage between the first diode D1 and the second diode D2 is reduced to the minimum, and at this time, the first grounded capacitor C3 charges the second capacitor C2, so that the voltage difference of the second capacitor C2 is maximized and equal to the set value. When the PNP transistor Q2 is turned off when the NPN transistor Q1 is controlled to be turned on by the oscillation signal, the first capacitor C1 is discharged again, the second capacitor C2 is discharged simultaneously, and the node between the third diode D3 and the fourth diode D4 inputs the current of the voltage input terminal Vin, the first capacitor C1 and the second capacitor C2 simultaneously, so that the voltage of the cathode of the fourth diode D4 is increased, and if the voltage value of the voltage input terminal Vin is 12V, the voltage of the cathode of the fourth diode D4 is 28-36V, so that the voltage VH between the anode and the gate of the fluorescent display screen is increased, thereby achieving the effect of boosting the dc voltage signal.
The collecting unit is used for collecting the key information of the corresponding input panel, namely the key information is output by the input panel when a user presses a mechanical key or a virtual key on the input panel, the collecting unit obtains the key information at the moment, and the collecting process can be realized by adopting a processor. The storage unit is connected with the acquisition unit, and can adopt a GRO memory for acquiring and storing the key information corresponding to the input panel. And the storage unit is connected with the MCU of the electric equipment, and the MCU of the electric equipment reads the key information recorded in the storage unit at a set frequency and responds to the key information to output a preset control instruction. The IC drive circuit is connected with the MCU of the electric equipment to receive and respond to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information. Compared with the conventional mode that the MCU of the electric equipment is directly connected with the keys to acquire the key information, the added storage unit can store a plurality of key information, the occupation of the I/O port of the MCU of the electric equipment is reduced, and the load of the MCU is reduced.
Because the storage space of the storage unit is limited, and the workload of single scanning of the MCU is increased when the key information is increased. Therefore, the storage unit is connected with the erasing subunit, the erasing subunit can adopt a single chip microcomputer and is used for erasing the key information in the storage unit at a preset frequency, and the erasing subunit erases the key information in the storage unit when the MCU of the electric equipment reads the key information recorded in the storage unit. The set frequency of the MCU of the electric equipment for reading the key information is equal to the integral multiple of the preset frequency of the erasing sub-unit for erasing the key information, namely the erasing sub-unit can delete the stored key information after the MCU of the electric equipment reads the key information of the storage unit for multiple times, so that the workload of the erasing sub-unit is reduced, and the erased key information is ensured to be the read key information all the time, thereby reducing the error rate and improving the stability.
When the frequency of erasing the key information is lower than the frequency of reading the key information by the MCU of the electric equipment, the problems of workload increase and repeated operation of the MCU caused by reading the same key information for multiple times by the MCU of the electric equipment are solved. Therefore, the storage unit further comprises a numbering subunit, the numbering subunit can adopt a single chip microcomputer, and the single chip microcomputer is used for numbering the key information according to the sequence of key information acquisition. If the equipment is a sound box, a user firstly presses a volume up key and then presses a play key, and then the number 001 corresponds to the key information of the volume up key; the number 002 corresponds to the key information of the play key, and the like. And when the MCU reads the key information of one or more numbers, the corresponding number is obtained and recorded, and when the MCU reads the key information again, only the key information corresponding to the unrecorded number is read and a corresponding preset control instruction is output. The key information is distinguished in a key information numbering mode, confusion is avoided, and before the sub-unit is erased to erase all the key information, the MCU of the electric equipment can screen the key information read from the storage unit each time, and screen out the recorded key information corresponding to the number, namely only newly stored key information is read, so that the storage space of the storage unit is fully utilized, the erasing frequency is reduced, the power consumption is reduced, and meanwhile, the normal realization of the equipment function is prevented from being influenced by repeated operation of the key information.
When the erasing subunit erases the key information, the number of the newly stored key information in the storage unit is reset, for example, the number 001 is used again; number 002, etc. However, if the operation of erasing the key information occurs between two adjacent reading operations of the MCU, the MCU may miss the recorded different key information with the same number during reading, which may result in abnormal response of the device. Therefore, when the erasing subunit erases the key information, namely when the number is reset, a character for identification is added to the number, such as the number A001, the character is changed when the number is reset, such as the number B001, the original character is recovered when the number is reset again, such as the number A001, and the like, two or more characters can be used alternately, so as to distinguish the states of the storage unit before the key information is erased and after the key information is erased, when the characters are consistent, the MCU of the electric equipment only reads the key information which is not recorded with the number in the storage unit, when the characters are inconsistent, the MCU of the electric equipment reads all the key information in the storage unit, and the MCU is prevented from missing different recorded key information with the same number when the MCU reads the different key information.
The following control method can be realized by applying the fluorescent display screen device: when a user clicks a key of the equipment, the acquisition unit acquires key information corresponding to the input panel first, and then the storage unit acquires and stores the key information corresponding to the input panel. Meanwhile, the MCU of the electric equipment reads the key information recorded in the storage unit at a set frequency, namely, at intervals, responds to the key information to control the equipment to start or close corresponding functions, such as adjusting the volume of equipment such as a sound device, and the like, and simultaneously outputs a preset control instruction, the preset IC drive circuit receives and responds to the preset control instruction to control the display screen body to display characters or graphs corresponding to the key information, and if the key information is the volume-up volume, a horizontal bar is added on the graph representing the volume ladder.
When a user operates equipment with a fluorescent display screen device, the time for using the keys is generally concentrated in a certain period of time, namely, a plurality of key information are relatively concentrated. Based on this rule, the following method is implemented by a processor or the like: when the storage unit receives the key information, the switching signal is output to the MCU of the electric equipment, and when the MCU receives the switching signal, the set frequency of the MCU for reading the key information in the storage unit is increased to the working frequency, so that the set frequency of the MCU is increased, a set time is prolonged, the response efficiency of the MCU is accelerated in the period, the delay of key feedback is reduced, and the use experience of a user is improved. If the MCU does not receive the switching signal within the set time, the requirement that the user has no keys is indicated, the set frequency is reduced to the dormant frequency at the moment, and the working frequency is higher than the dormant frequency, so that the load of the MCU is reduced, the power consumption is reduced, the phenomena of jamming and downtime of the MCU are reduced, and the normal use of the electric equipment is facilitated.
The implementation principle of the embodiment is as follows: when a user clicks a key of equipment, key information is collected through the collecting unit and stored in the storage unit, the MCU of the electric equipment reads the key information in the storage unit at intervals, preset control instructions are output according to the received key information, and corresponding functions are opened or closed by the control equipment.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides an integrated IC driven fluorescence display screen device which characterized in that, including the display screen body, with this body coupling's of display screen IC drive circuit and with this body coupling's of display screen input panel, still include: the acquisition unit is used for acquiring key information corresponding to the input panel;
the storage unit is connected with the acquisition unit, is used for acquiring and storing the key information corresponding to the input panel, is connected with the MCU of the electric equipment, reads the key information recorded in the storage unit at a set frequency by the MCU of the electric equipment, and responds to the key information to output a preset control instruction;
the IC drive circuit is connected with the MCU of the electric equipment to receive and respond to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information.
2. The integrated IC-driven fluorescent display device of claim 1, wherein the display body comprises a hermetic enclosure with an inner vacuum, and the IC driving circuit is located in the hermetic enclosure.
3. The IC-driven fluorescent display device of claim 1, wherein the memory unit is connected to an erase subunit, the erase subunit erases the key information in the memory unit at a predetermined frequency, and the erase subunit erases the key information in the memory unit when the MCU of the power consumption device reads the key information recorded in the memory unit.
4. The IC-driven fluorescent display device of claim 3, wherein the set frequency of the MCU reading the key information of the power consumption device is equal to an integral multiple of the preset frequency of the erasing sub-unit erasing the key information.
5. The IC-driven fluorescent display device of claim 4, wherein the memory unit comprises a numbering subunit, the numbering subunit is configured to number the key information according to the key information collection sequence, obtain and record a corresponding number when the MCU of the electrical device reads the key information of one or more numbers, and read only the key information corresponding to the unrecorded number and output a corresponding preset control command when the MCU reads the key information again.
6. The integrated-IC-driven fluorescent display panel device of claim 1, wherein the IC driving circuit comprises a control module and a voltage boosting module;
the boosting module comprises a first diode, a second diode, a third diode and a fourth diode which are sequentially connected in series in a power-on loop, and further comprises a first capacitor, a second capacitor, a first grounding capacitor and a second grounding capacitor;
the anode of the first diode is connected with the voltage input end Vin, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the third diode, the cathode of the third diode is connected with the anode of the fourth diode, and the cathode of the fourth diode is used for connecting the anode and the grid of the display screen body;
one end of the first capacitor is connected to the connection point of the first diode and the second diode, and the other end of the first capacitor is connected with the control module; one end of the second capacitor is connected to the connection point of the first diode and the second diode, and the other end of the second capacitor is connected to the connection point of the third diode and the fourth diode; one end of the first grounding capacitor is connected to the connection point of the second diode and the third diode, and the other end of the first grounding capacitor is grounded; one end of the second grounding capacitor is connected to the cathode of the fourth diode, and the other end of the second grounding capacitor is grounded;
the control module is used for controlling the electric potential of one end of the first capacitor so as to control the first capacitor to charge or discharge.
7. The integrated IC-driven fluorescent display panel device of claim 6, wherein the control module comprises an oscillation signal output submodule for outputting an oscillation signal, a first switch element and a second switch element, the control terminal of the first switch element is connected to the oscillation signal output submodule to receive the oscillation signal, the input terminal of the first switch element is connected to the voltage input terminal Vin, and the output terminal of the first switch element is connected to one terminal of the first capacitor; the control end of the second switch element is connected with the oscillation signal output submodule to receive the oscillation signal, the input end of the second switch element is connected with the output end of the first switch element, the output end of the second switch element is grounded, the second switch element is cut off when the oscillation signal controls the first switch element to be switched on, and the first switch element is cut off when the oscillation signal controls the second switch element to be switched on.
8. The integrated IC-driven fluorescent display device of claim 7, wherein the first switching element is an NPN transistor, and the second switching element is a PNP transistor.
9. A control method for applying the integrated IC driven fluorescent display panel device according to any one of claims 1 to 8, comprising the steps of: collecting key information corresponding to an input panel;
acquiring and storing key information corresponding to an input panel;
the MCU of the preset electric equipment is controlled to read the key information recorded in the storage unit at a set frequency and respond to the key information to output a preset control instruction;
the preset IC drive circuit receives and responds to a preset control instruction to control the display screen body to display characters or graphs corresponding to the key information.
10. A control method according to claim 9, characterized by further comprising the step of: when the storage unit receives the key information, the switching signal is output to the MCU of the preset electric equipment, when the MCU of the electric equipment receives the switching signal, the set frequency for reading the key information in the storage unit is increased to the working frequency, if the MCU does not receive the switching signal within the set time, the set frequency is reduced to the dormancy frequency, and the working frequency is higher than the dormancy frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010676341.6A CN111724721B (en) | 2020-07-14 | 2020-07-14 | Fluorescent display screen device driven by integrated IC (integrated circuit) and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010676341.6A CN111724721B (en) | 2020-07-14 | 2020-07-14 | Fluorescent display screen device driven by integrated IC (integrated circuit) and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111724721A true CN111724721A (en) | 2020-09-29 |
| CN111724721B CN111724721B (en) | 2023-01-06 |
Family
ID=72572525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010676341.6A Active CN111724721B (en) | 2020-07-14 | 2020-07-14 | Fluorescent display screen device driven by integrated IC (integrated circuit) and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111724721B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274768A (en) * | 1968-10-07 | 1972-05-17 | Ibm | Data processing system |
| US3987416A (en) * | 1973-09-24 | 1976-10-19 | Vandierendonck Jerry L | Electronic calculator with display and keyboard scanning signal generator in data memory |
| GB2120820A (en) * | 1982-01-09 | 1983-12-07 | Orbital Data Systems Limited | Display devices |
| CN1237853A (en) * | 1998-03-27 | 1999-12-08 | 索尼公司 | Apparatus for timer recording of program and method for timer recording of program |
| US20020033811A1 (en) * | 2000-09-06 | 2002-03-21 | Yazaki Corporation | Drive circuit for vacuum fluorescent display tube |
| CN1698079A (en) * | 2003-02-25 | 2005-11-16 | 三菱电机株式会社 | Matrix type display device and display method thereof |
| CN201100881Y (en) * | 2007-10-12 | 2008-08-13 | 杭州电子科技大学 | An operation structure for home gas kitchen tool |
| CN201307389Y (en) * | 2008-11-04 | 2009-09-09 | 北京同方微电子有限公司 | Driving power supply circuit for a vacuum fluorescent display |
| CN101794544A (en) * | 2009-01-30 | 2010-08-04 | 则武伊势电子株式会社 | Driving method for vacuum fluorescent display, and vacuum fluorescent display |
| CN102855934A (en) * | 2012-08-23 | 2013-01-02 | 上海宏力半导体制造有限公司 | Nonvolatile memory system and erase method thereof |
| CN104410897A (en) * | 2014-12-11 | 2015-03-11 | 深圳市九洲电器有限公司 | Data storage method and device |
| CN108091289A (en) * | 2016-11-22 | 2018-05-29 | 双叶电子工业株式会社 | IC apparatus, fluorescent display tube and boost control method |
-
2020
- 2020-07-14 CN CN202010676341.6A patent/CN111724721B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274768A (en) * | 1968-10-07 | 1972-05-17 | Ibm | Data processing system |
| US3987416A (en) * | 1973-09-24 | 1976-10-19 | Vandierendonck Jerry L | Electronic calculator with display and keyboard scanning signal generator in data memory |
| GB2120820A (en) * | 1982-01-09 | 1983-12-07 | Orbital Data Systems Limited | Display devices |
| CN1237853A (en) * | 1998-03-27 | 1999-12-08 | 索尼公司 | Apparatus for timer recording of program and method for timer recording of program |
| US20020033811A1 (en) * | 2000-09-06 | 2002-03-21 | Yazaki Corporation | Drive circuit for vacuum fluorescent display tube |
| CN1698079A (en) * | 2003-02-25 | 2005-11-16 | 三菱电机株式会社 | Matrix type display device and display method thereof |
| CN201100881Y (en) * | 2007-10-12 | 2008-08-13 | 杭州电子科技大学 | An operation structure for home gas kitchen tool |
| CN201307389Y (en) * | 2008-11-04 | 2009-09-09 | 北京同方微电子有限公司 | Driving power supply circuit for a vacuum fluorescent display |
| CN101794544A (en) * | 2009-01-30 | 2010-08-04 | 则武伊势电子株式会社 | Driving method for vacuum fluorescent display, and vacuum fluorescent display |
| CN102855934A (en) * | 2012-08-23 | 2013-01-02 | 上海宏力半导体制造有限公司 | Nonvolatile memory system and erase method thereof |
| CN104410897A (en) * | 2014-12-11 | 2015-03-11 | 深圳市九洲电器有限公司 | Data storage method and device |
| CN108091289A (en) * | 2016-11-22 | 2018-05-29 | 双叶电子工业株式会社 | IC apparatus, fluorescent display tube and boost control method |
Non-Patent Citations (1)
| Title |
|---|
| 网络整理: "电容二极管升压电路图大全", 《HTTP://WWW.ELECFANS.COM/ARTICLE/83/147/2018/20180301641314.HTML》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111724721B (en) | 2023-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2801908B2 (en) | Driving circuit for plasma panel that can use power effectively | |
| CN101777320B (en) | ghost eliminating circuit, display and electronic device | |
| CN100423056C (en) | Power recovery circuit, plasma display, module for plasma display | |
| CN109658880B (en) | Pixel compensation method, pixel compensation circuit and display | |
| US6657604B2 (en) | Energy recovery circuit for plasma display panel | |
| CN102881255A (en) | Active organic light emitting diode circuit and operation method thereof | |
| CN107274832B (en) | Driving circuit and display device | |
| US6377275B1 (en) | Method and apparatus for outputting an on-screen display of a display device | |
| CN111724721B (en) | Fluorescent display screen device driven by integrated IC (integrated circuit) and control method | |
| JPH0643826A (en) | Plate type image display device | |
| CN113593475B (en) | Pixel circuit, driving method and display device | |
| CN114783362A (en) | Charge pump control circuit, display panel and display device | |
| CN209545562U (en) | A kind of control circuit of touch controlled key and the shared IO of charactron | |
| CN212785304U (en) | Startup and shutdown circuit and POS machine | |
| CN109461402A (en) | Shift register cell, driving method and display device | |
| CN103050084B (en) | Flat-panel monitor and driving circuit thereof | |
| CN110350902B (en) | Anti-misoperation circuit and anti-misoperation device | |
| CN115171610B (en) | Driving circuit and display panel | |
| US20070222719A1 (en) | Pixel driving method of organic light emitting diode display and apparatus thereof | |
| CN105513551A (en) | Voltage generation circuit and liquid crystal television | |
| US20070126367A1 (en) | Startup circuit and backlight control circuit using same | |
| KR20070087717A (en) | Driving apparatus for plasma display panel | |
| CN219267289U (en) | Power-off control circuit and display panel | |
| CN110086337A (en) | Voltage conversion circuit | |
| CN218729406U (en) | Drive circuit and remote controller with same |
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 |