CN107833553A - IC apparatus and fluorescent display tube - Google Patents

IC apparatus and fluorescent display tube Download PDF

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Publication number
CN107833553A
CN107833553A CN201710837738.7A CN201710837738A CN107833553A CN 107833553 A CN107833553 A CN 107833553A CN 201710837738 A CN201710837738 A CN 201710837738A CN 107833553 A CN107833553 A CN 107833553A
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CN
China
Prior art keywords
terminal
display tube
capacitor
lead
lead terminal
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.)
Pending
Application number
CN201710837738.7A
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Chinese (zh)
Inventor
宫岛晶生
六车雄
川嶋芳辉
森本荣二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Futaba Corp
Original Assignee
Futaba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2017053160A external-priority patent/JP6602331B2/en
Application filed by Futaba Corp filed Critical Futaba Corp
Publication of CN107833553A publication Critical patent/CN107833553A/en
Pending legal-status Critical Current

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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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/073—Charge pumps of the Schenkel-type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/073—Charge pumps of the Schenkel-type
    • H02M3/077—Charge pumps of the Schenkel-type with parallel connected charge pump stages

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The present invention suppresses display quality and declines, suppresses the adjoint cost increase of display tube substrate size expansion.In the filament including discharging electronics, the anode formed with fluorophor is by the anode pattern portion of predetermined pattern arrangement and the display tube substrate of multiple lead terminals on anode electrode with control electronics movement, and it is arranged at display tube substrate and is driven in the fluorescent display tube of the IC apparatus of anode based on the electronic signal inputted via lead terminal, IC apparatus includes charge pump circuit portion and multiple capacitor terminals, the charge pump circuit portion is the circuit portion in the charge-pump type step-up circuit of the driving voltage of generation anode at least in addition to charge pump capacitor, the multiple capacitor terminal is connected at each charge pump capacitor and the charge pump circuit portion of the outside of fluorescent display tube via predetermined lead terminal.Also, multiple capacitor terminals end edge side relative with anode pattern portion in the end edge of IC apparatus.

Description

IC apparatus and fluorescent display tube
Technical field
The present invention relates to the IC apparatus in fluorescent display tube and fluorescent display tube, the fluorescent display tube includes： Filament, display tube substrate and the IC apparatus of electronics are discharged, the display tube substrate has the anode in control electronics movement The anode pattern portion and multiple lead terminals that the anode formed with fluorophor is arranged by predetermined pattern on electrode, the integrated circuit Device is arranged at display tube substrate and drives anode based on the electronic signal inputted via lead terminal.
Background technology
VFD(Vacuum Fluorescent Display：Fluorescent display tube) as the display device for showing various information It is well known.
It is well known that formed on the anode electrode that the filament (direct-heated cathode) of release electronics, control electronics move in VFD There is the anode arrangement of fluorophor in sealing container.Heating release thermoelectron is carried out by applying voltage to filament, and is led to Crossing makes thermoelectron be collided with the fluorophor on anode to light anode.Anode is arranged by predetermined pattern, by being lighted to being used as Apply driving voltage (DC voltage) anode selection of object, only allow the fluorophor of the anode to be discharged by filament Thermionic excite and light, with show required for information.
In addition, VFD has the situation that the grid for accelerating the thermoelectron discharged from filament is configured between filament and anode.
As VFD, CIG (Chip In Glass, glass interplantation core)-VFD as is known, the driving of anode drive is carried out Circuit is by IC (Integrated Circuit：Integrated circuit) form, it is known to the IC is installed on formed with anode pattern On substrate and it is configured at the type in sealing container.In addition, following, Patent Document 1 discloses be installed on power control circuit The CIG-VFD of IC type.
In CIG-VFD, also there is following type：Formed and be used for from external input power voltage, for showing on substrate The lead terminal of the various electronic signals of control, electric power, input signal are transmitted to IC via the lead terminal.
Hereinafter, the substrate for the VFD that anode pattern and IC are configured with CIG-VFD is labeled as " display tube substrate ".
Herein, in VFD, boost predetermined input voltage sometimes and generate the driving voltage of anode.Also, as this feelings The booster circuit of condition, sometimes using charge-pump type step-up circuit.
In addition, on charge-pump type step-up circuit, such as refer to following patent documents 2.
In the past, charge-pump type step-up circuit was being used as the power circuit of generation CIG-VFD anode drive voltage In the case of, the charge-pump type step-up circuit is set to CIG-VFD outer circuits.That is, CIG- in this case VFD, the booster voltage generated by the charge-pump type step-up circuit of outside are input to IC via lead terminal, based on boosting electricity Press IC driving anodes.
Here, the switch motion of the switch element in charge-pump type step-up circuit is controlled by the IC in CIG-VFD.Namely Say, the lead terminal formed with the driving control signal for exporting the switch element on display tube substrate, IC passes through the lead The switch motion of the above-mentioned switch element of Terminal control.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2007-65074 publications
Patent document 2：Japanese Patent Laid-Open 2005-70595 publications
The content of the invention
Technical problem
Here, in the case of above-mentioned external charge-pump type step-up circuit, can be accurate in advance using CIG-VFD user side The standby substrate for being mounted with charge-pump type step-up circuit is as the substrate for loading CIG-VFD.
In order to mitigate the installation burden of the charge-pump type step-up circuit of such a user side, consider charge-pump type boosting electricity The part on road is arranged on CIG-VFD IC.Specifically, charge pump capacitor will be at least removed among charge-pump type step-up circuit IC is located in circuit portion (being labeled as below in " charge pump circuit portion ") in addition.
In this case, because charge pump capacitor is set to external, therefore new be provided with is used to connect on display tube substrate The lead terminal (being labeled as below " capacitor lead wire terminal ") of charge pump capacitor.In addition, new on IC be provided with and charge pump electricity Road portion connects, and the terminal (being labeled as below " capacitor terminal ") being connected with the capacitor lead wire terminal, on display tube substrate Formed with the distribution (being labeled as below " capacitor distribution ") for connecting the capacitor terminal and capacitor lead wire terminal.
In addition, in this case, because the control of switch motion in charge-pump type step-up circuit is completed inside IC, therefore The lead terminal of switch motion control and the IC being connected with the lead terminal terminal necessary to no longer needing in the past.
However, will as above be located at IC in charge pump circuit portion, and charge pump capacitor is set to external relative to CIG-VFD In the case of, the wiring lengths between charge pump circuit portion and charge pump capacitor can be relatively long.That is, due to conventional By substrate of the charge-pump type step-up circuit integral installation outside CIG-VFD, therefore charge pump capacitor and charge pump circuit portion Between wiring lengths be limited in necessary Min., but in the case where charge pump capacitor is set into external, with Needed when charge pump circuit portion connects from charge pump capacitor to the distribution of capacitor lead wire terminal and above-mentioned capacitor distribution (from Distribution of the capacitor lead wire terminal to IC capacitor terminal), the increase of conventional wiring lengths is inevitable.
Herein, in charge-pump type step-up circuit, output voltage changes with load change.Therefore, lighting in anode Rate, drive condition etc. change in the case of the load change for causing charge-pump type step-up circuit, charge-pump type step-up circuit Output voltage be that the driving voltage of anode also changes, if the variation amplitude greatly if will readily appreciate that the change of brightness, There is the anxiety of infringement display quality.
It is bigger that the wiring resistance in the circuit portion of charge pump action is administered in known charge pump-type booster circuit, it is above-mentioned with negative The variation for carrying the output voltage changed is more notable.Therefore, if as described above charge pump capacitor and charge pump circuit portion it Between wiring lengths it is elongated, i.e., wiring resistance increase in the case of, be likely to result in display quality reduction.
In addition, as described above, it is necessary to set capacitor on IC respectively in the case of IC will be located in charge pump circuit portion Terminal, capacitor lead wire terminal is set on display tube substrate, and the electric capacity for connecting these terminals is formed on display tube substrate Device distribution.However, the limited space of distribution can be laid on display tube substrate, due to capacitor terminal, capacitor lead wire terminal Allocation position relation, therefore capacitor distribution can not be effectively laid in limited space, having causes substrate size to be magnified Anxiety.
The extension of substrate size is related to cost increase, therefore should be suppressed.
The present invention is exactly to complete in view of the foregoing, it is therefore intended that suppresses display quality and declines and suppress display tube base Board size expands adjoint cost increase.
Technical scheme
IC apparatus involved in the present invention is the IC apparatus in fluorescent display tube, the fluorescent display tube Including：Discharge the filament of electronics；Display tube substrate, it has anode pattern portion and multiple lead terminals, the anode pattern portion It is the anode pattern portion that the anode formed with fluorophor is arranged with predetermined pattern on the anode electrode for the movement for controlling the electronics； And the IC apparatus, it is arranged at the display tube substrate and based on the e-mail inputted via the lead terminal Number driving anode, the IC apparatus include：Charge pump circuit portion, it is the electricity for the driving voltage for generating the anode Circuit portion among lotus pump-type booster circuit at least in addition to charge pump capacitor；And multiple capacitor terminals, it is via pre- The fixed lead terminal is connected in each charge pump capacitor of the outside of the fluorescent display tube and the electric charge Pump circuit portion, the multiple capacitor terminal are arranged among the end edge of the IC apparatus and anode pattern portion phase To end edge side.
As described below, the lead terminal being connected with charge pump capacitor i.e. capacitor lead wire terminal, drawing of being connected with filament Line terminals be filament lead terminal be arranged in along display tube substrate long side direction extension same lead terminal row in the case of, IC apparatus is configured on above-mentioned long side direction between anode pattern portion and filament lead terminal.In addition, in the situation Under, capacitor lead wire terminal group (group of the capacitor lead wire terminal arranged on above-mentioned long side direction) is on above-mentioned long side direction Position be set as on above-mentioned long side direction positioned at outermost all capacitor lead wire terminals and IC apparatus aobvious Show the position inside overlapped on pipe substrate short side direction.
Wherein, when shortening the wiring lengths of capacitor distribution of connection capacitor terminal and capacitor lead wire terminal, examine Consider following situation：Capacitor terminal is configured among the end edge of IC apparatus and is arranged with capacitor with display tube substrate The relative end edge side in the side of the side of lead terminal.But, it is necessary in display tube substrate in the case of being configured so that capacitor terminal Short side direction on ensure capacitor distribution being configured at space between IC apparatus and the aligning section of lead terminal, from And cause the dimension enlargement on the short side direction of display tube substrate.
As above, by the way that capacitor terminal to be arranged to end edge side relative with anode pattern portion in IC apparatus, energy The problem of enough preventing the substrate size on above-mentioned short side direction from magnifying, and roundabout arranging capacitor distribution is not needed, so as to Relative it can shorten wiring lengths.Due to can shortening capatcitor distribution, therefore the relative of charge-pump type step-up circuit can be reduced In the output voltage fluctuation amplitude of load change, so as to suppress brightness change.
It can be formed as follows in IC apparatus involved by the invention described above：It is described aobvious in the fluorescent display tube Show the length of the difference of length in length and breadth of pipe substrate, the IC apparatus and the anode pattern portion in the display tube substrate Arranged on edge direction, on the display tube substrate, the lead terminal i.e. capacitor that is connected with the charge pump capacitor Lead terminal is arranged at each charge pump capacitor, also, formed with the capacitor lead wire end on the display tube substrate The lead terminal aligning section that son arranges together with other lead terminals along the long side direction, the lead terminal arrangement Portion is located at the IC apparatus and the aligning part and the long side direction of the display tube substrate in the anode pattern portion Among side between a line, possess with the multiple capacitor terminal identical end edge side for described in anode application The drive terminal of driving voltage, the multiple capacitor terminal is arranged to be arranged than the drive terminal closer to the lead terminal The side in row portion.
Thus, capacitor terminal can be configured at closer to the position of capacitor lead wire terminal.
In addition, in shortening capatcitor distribution, can be by for driving the driving distribution of anode and capacitor distribution to be formed In the same layer of display tube substrate.
IC apparatus involved by the invention described above can be formed as follows：In the fluorescent display tube, the display The long side of the difference of length in length and breadth of pipe substrate, the IC apparatus and the anode pattern portion in the display tube substrate Arranged on direction, on the display tube substrate, the lead terminal i.e. capacitor being connected with the charge pump capacitor draws Line terminals are arranged at each charge pump capacitor, also, formed with the capacitor lead wire terminal on the display tube substrate With the lead terminal aligning section arranged together with other lead terminals along the long side direction, the lead terminal aligning section Positioned at the side of the aligning part and the long side direction of the display tube substrate in the IC apparatus and the anode pattern portion Among between a line, and there is input voltage lead terminal, the input voltage lead terminal is used for will be to the electric charge The input voltage of pump circuit portion input from the outside input of the fluorescent display tube, with the multiple capacitor terminal identical On end edge side input voltage terminal, institute are configured with than the multiple capacitor terminal closer to the side of the lead terminal aligning section State input voltage terminal be used for input via the input voltage lead terminal the input voltage.
Thus, the wiring lengths ratio of the input voltage distribution of connection input voltage lead terminal and input voltage terminal can be made Capacitor distribution is shorter.
IC apparatus involved by the invention described above can be formed as follows：In the fluorescent display tube, the display The long side of the difference of length in length and breadth of pipe substrate, the IC apparatus and the anode pattern portion in the display tube substrate Arranged on direction, on the display tube substrate, the lead terminal i.e. capacitor being connected with the charge pump capacitor draws Line terminals are arranged at each charge pump capacitor, also, formed with the capacitor lead wire terminal on the display tube substrate With the lead terminal aligning section arranged together with other lead terminals along the long side direction, the lead terminal aligning section Positioned at the side of the aligning part and the long side direction of the display tube substrate in the IC apparatus and the anode pattern portion Among between a line, and there is data signal lead terminal, the data signal lead terminal is from the fluorescent display tube Outside input be used for display control data signal, in the end edge side of the opposite side of the end edge relative with the anode pattern portion Possesses data signal terminal, the data signal terminal is used to input the numeral via the data signal lead terminal Signal.
Thus, the data signal distribution for connecting data signal terminal sum word signal lead terminal is laid in capacitor terminal Opposite side end edge side, therefore cut down should be disposed in matching somebody with somebody in the boundary space between IC apparatus and anode pattern portion Line number amount.
IC apparatus involved by the invention described above can be formed as follows：The IC apparatus includes logic voltage Terminal, it is logic voltage that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion,；It is and defeated Go out voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit, in the fluorescent display tube, the display tube The length in length and breadth of substrate is different, and the IC apparatus and the anode pattern portion are in the long side side of the display tube substrate Arrangement upwards, on the display tube substrate, the lead terminal i.e. capacitor lead wire that is connected with the charge pump capacitor Terminal is arranged at each charge pump capacitor, also, formed with lead terminal aligning section on the display tube substrate, it is described to draw Line terminals aligning section is that the capacitor lead wire terminal arranges together with other lead terminals along the long side direction Lead terminal aligning section, the lead terminal aligning section are located at the aligning section in the IC apparatus and the anode pattern portion Point and the display tube substrate long side direction side among between a line, and comprising：Connect with the logic voltage terminal The lead terminal connect i.e. logic voltage lead terminal and the lead terminal being connected with the output voltage terminal are i.e. defeated Go out voltage lead terminal, the logic voltage terminal is arranged at the end edge of the opposite side of the end edge relative with the anode pattern portion Side, the output voltage terminal are arranged at the end edge side relative with the anode pattern portion.
Thus, the logic voltage distribution for connecting logic voltage terminal and logic voltage lead terminal is disposed in lead terminal row Space among the side of the long side direction of row portion and display tube substrate between a line, on the other hand, connect output voltage terminal And the output voltage distribution of output voltage lead terminal can be via the boundary space between IC apparatus and anode pattern portion It is laid between lead terminal aligning section and anode pattern portion.
IC apparatus involved by the invention described above can be formed as follows：In the IC apparatus with it is the multiple Capacitor terminal identical end edge side possesses drive terminal, and the drive terminal is used to apply the anode driving electricity Pressure, the output voltage terminal is on the short side direction of the display tube substrate positioned at the multiple capacitor terminal and the drive Between of moved end.
Thereby, it is possible to make each capacitor terminal close to corresponding capacitor lead wire terminal, and connect output voltage terminal Nearly output voltage lead terminal.
In addition, fluorescent display tube involved in the present invention includes：Discharge the filament of electronics；Display tube substrate, it has Control anode pattern portion that the anode formed with fluorophor on the anode electrode of the movement of the electronics is arranged with predetermined pattern and Multiple lead terminals；And IC apparatus, it is arranged at the display tube substrate and based on via the lead terminal The signal of input drives the anode, and the IC apparatus includes：Charge pump circuit portion, it is the driving for generating the anode Circuit portion among the charge-pump type step-up circuit of voltage at least in addition to charge pump capacitor；And multiple capacitor terminals, It is connected in via the predetermined lead terminal each charge pump capacitor of the outside of the fluorescent display tube with The charge pump circuit portion, the multiple capacitor terminal are arranged among the end edge of the IC apparatus and the anode The relative end edge side of drafting department.
Fluorescent display tube according to involved by the invention described above, it can also obtain and the integrated circuit involved by the invention described above Device identical acts on.
It can be formed as follows in fluorescent display tube involved by the invention described above：The length in length and breadth of the display tube substrate is not Together, the IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, described aobvious Show on pipe substrate, the lead terminal being connected with the charge pump capacitor i.e. capacitor lead wire terminal is arranged at each electricity Lotus pump capacitor, also, formed with the capacitor lead wire terminal and other lead terminals on the display tube substrate The lead terminal aligning section arranged together along the long side direction, the lead terminal aligning section are located at the IC apparatus And the anode pattern portion aligning part and the display tube substrate long side direction side among between a line, the collection There is drive terminal with the multiple capacitor terminal identical end edge side into circuit arrangement, the drive terminal is used for institute State anode and apply the driving voltage, the multiple capacitor terminal is arranged at than the drive terminal closer to the lead end The side of sub- aligning section.
Thus, capacitor terminal can be configured at closer to the position of capacitor lead wire terminal.
In addition, in shortening capatcitor distribution, can be by for driving the driving distribution of anode and capacitor distribution to be formed at The same layer of display tube substrate.
Fluorescent display tube involved by the invention described above can be formed as follows：Connect the capacitor lead wire terminal and the electricity The electricity being at least connected among capacitor distribution between container terminal near the capacitor terminal of the drive terminal Boundary space of the container distribution between the IC apparatus and the anode pattern portion arranges towards the lead terminal The direction extension in portion.
Thus, under the premise of making capacitor distribution Uncrossed each other, all capacitor distributions of arranging without around The end edge side of the opposite side of the end edge relative with anode pattern portion in IC apparatus.
It can be formed as follows in fluorescent display tube involved by the invention described above：The length in length and breadth of the display tube substrate is not Together, the IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, described aobvious Show on pipe substrate, the lead terminal being connected with the charge pump capacitor i.e. capacitor lead wire terminal is arranged at each electricity Lotus pump capacitor, also, formed with the capacitor lead wire terminal and other lead terminals on the display tube substrate The lead terminal aligning section arranged together along the long side direction, the lead terminal aligning section are located at the IC apparatus And the anode pattern portion aligning part and the display tube substrate long side direction side among between a line, and have There is input voltage lead terminal, the input voltage lead terminal is used for the input voltage that will be inputted to the charge pump circuit portion From the outside input of the fluorescent display tube, in the IC apparatus with the multiple capacitor terminal identical end edge side On than the multiple capacitor terminal there is input voltage terminal closer to the side of the lead terminal aligning section, the input electricity Pressure side is used to input the input voltage via the input voltage lead terminal.
Thus, the wiring lengths ratio of the input voltage distribution of connection input voltage lead terminal and input voltage terminal can be made Capacitor distribution is shorter.
Fluorescent display tube involved by the invention described above can be formed as follows：The length in length and breadth of the display tube substrate is not Together, the IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, described aobvious Show on pipe substrate, the lead terminal being connected with the charge pump capacitor i.e. capacitor lead wire terminal is arranged at each electricity Lotus pump capacitor, also, formed with the capacitor lead wire terminal and other lead terminals on the display tube substrate The lead terminal aligning section arranged together along the long side direction, the lead terminal aligning section are located at the IC apparatus And the anode pattern portion aligning part and the display tube substrate long side direction side among between a line, and have There is data signal lead terminal, the data signal lead terminal is used for display control from the outside input of the fluorescent display tube Data signal, the end edge side of the opposite side of the end edge relative with the anode pattern portion has number in the IC apparatus Word signal terminal, the data signal terminal are used to input the data signal via the data signal lead terminal.
Thus, the data signal distribution for connecting data signal terminal sum word signal lead terminal is laid in capacitor terminal Opposite side end edge side, therefore cut down should be disposed in matching somebody with somebody in the boundary space between IC apparatus and anode pattern portion Line number amount.
It can be formed as follows in fluorescent display tube involved by the invention described above：Connect the capacitor terminal and the electric capacity The width of each capacitor distribution of device lead terminal is than connecting the data signal terminal and the data signal lead terminal The width of data signal distribution is thicker.
Pass through the width of such thickening capacitor distribution, the resistance value of reduction capacitor distribution.
Fluorescent display tube involved by the invention described above can be formed as follows：Connect the input voltage terminal and the input The width of the input voltage distribution of voltage lead terminal is than connecting each of the capacitor terminal and the capacitor lead wire terminal The width of capacitor distribution is thicker.
Pass through the width of such thickening input voltage distribution, the resistance value of reduction input voltage distribution.
It can be formed as follows in fluorescent display tube involved by the invention described above：The length in length and breadth of the display tube substrate is not Together, the IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, described aobvious Show on pipe substrate, the lead terminal being connected with the charge pump capacitor i.e. capacitor lead wire terminal is arranged at each electricity Lotus pump capacitor, also, formed with the capacitor lead wire terminal and other lead terminals on the display tube substrate The lead terminal aligning section arranged together along the long side direction, the lead terminal aligning section are located at the IC apparatus And the anode pattern portion aligning part and the display tube substrate long side direction side among between a line, and have There is the filament lead terminal of the driving voltage of filament described in the outside input from the fluorescent display tube and as ground terminal Ground lead terminal, in the lead terminal aligning section, the filament lead terminal is with the position of the IC apparatus On the basis of be located furthest from the anode pattern portion opposite side position, closest to institute among the capacitor lead wire terminal State the filament lead end closest to capacitor lead wire terminal, with the closest IC apparatus of IC apparatus Son is i.e. closest to being arranged with the ground lead terminal between filament lead terminal.
Thus, shadow of the noise to filament drive system in the case that reduction filament lead terminal is near from capacitor lead wire terminal Ring, and matching somebody with somebody for lead terminal is acted effectively as closest to filament lead terminal and closest to the space between capacitor lead wire terminal Between being empty.
Fluorescent display tube involved by the invention described above can be formed as follows：In the lead terminal aligning section, described Closest to being arranged with the ground lead terminal and input between capacitor lead wire terminal and the lead terminal closest to filament Voltage lead terminal, the input voltage lead terminal are used for the input voltage that the charge pump circuit portion inputs from described The outside input of fluorescent display tube.
Thus, it is closest to capacitor lead wire terminal and further closest to the space between filament lead terminal by expanding Reduce influence of the noise to filament drive system, and input voltage lead terminal can be made to be arranged to than drawing closest to capacitor Line terminals are closer to IC apparatus, so as to make input voltage distribution more shorter than each capacitor distribution.
It can be formed as follows in fluorescent display tube involved by the invention described above：The IC apparatus includes logic voltage Terminal, it is logic voltage that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion,；It is and defeated Go out voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit, and the length in length and breadth of the display tube substrate is not Together, the IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, described aobvious Show on pipe substrate, the lead terminal being connected with the charge pump capacitor i.e. capacitor lead wire terminal is arranged at each electricity Lotus pump capacitor, also, formed with the capacitor lead wire terminal and other lead terminals on the display tube substrate The lead terminal aligning section arranged together along the long side direction, the lead terminal aligning section are located at the IC apparatus And the anode pattern portion aligning part and the display tube substrate long side direction side among between a line, and wrap Contain：The lead terminal i.e. logic voltage lead terminal that is connected with the logic voltage terminal and with the output voltage terminal Connection the lead terminal be output voltage lead terminal, in the IC apparatus, the logic voltage terminal and The output voltage terminal is arranged at the end edge side of the opposite side of the end edge relative with the anode pattern portion, connects the logic The logic voltage distribution of voltage terminal and the logic voltage lead terminal is via the lead terminal aligning section and the display Space among the side of the long side direction of pipe substrate between a line arranges, and connects the output voltage terminal and the output electricity Boundary space of the output voltage distribution of voltage lead wires terminal between the anode pattern portion and the IC apparatus is matched somebody with somebody If.
Thus, the equipping position of output voltage distribution and logic voltage distribution is separated by lead terminal aligning section.
Fluorescent display tube involved by the invention described above can be formed as follows：The IC apparatus includes logic voltage end Son, it is logic voltage that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion,；And output Voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit, and the length in length and breadth of the display tube substrate is different, The IC apparatus and the anode pattern portion arrange on the long side direction of the display tube substrate, in the display tube On substrate, the lead terminal i.e. capacitor lead wire terminal being connected with the charge pump capacitor is arranged at each charge pump Capacitor, also, on the display tube substrate formed with the capacitor lead wire terminal together with other lead terminals The lead terminal aligning section arranged along the long side direction, the lead terminal aligning section are located at the IC apparatus and institute State among the side of the aligning part in anode pattern portion and the long side direction of the display tube substrate between a line, and comprising： The lead terminal i.e. logic voltage lead terminal that is connected with the logic voltage terminal and connect with the output voltage terminal The lead terminal connect i.e. output voltage lead terminal, the logic voltage terminal are arranged at relative with the anode pattern portion End edge opposite side end edge side, the output voltage terminal is arranged at the end edge side relative with the anode pattern portion.
Thus, the logic voltage distribution for connecting logic voltage terminal and logic voltage lead terminal is disposed in lead terminal row Space among the side of the long side direction of row portion and display tube substrate between a line, on the other hand, connect output voltage terminal , can be via the boundary space between IC apparatus and anode pattern portion with the output voltage distribution of output voltage lead terminal It is laid between lead terminal aligning section and anode pattern portion.
Fluorescent display tube involved by the invention described above can be formed as follows：In the IC apparatus with the multiple electricity Container terminal identical end edge side possesses drive terminal, and the drive terminal is used to apply the driving voltage to the anode, The output voltage terminal is located at the multiple capacitor terminal and the driving on the short side direction of the display tube substrate Between terminal.
Thereby, it is possible to make each capacitor terminal close to corresponding capacitor lead wire terminal, and connect output voltage terminal Nearly output voltage lead terminal.
Fluorescent display tube involved by the invention described above can be formed as follows：Connect the output voltage terminal and the output Boundary space court of the output voltage distribution of voltage lead terminal between the IC apparatus and the anode pattern portion Extend to the direction of the lead terminal aligning section.
Thus, the phase of the arranging of the output voltage distribution end edge relative with anode pattern portion not in IC apparatus The end edge side tossed about.
Technique effect
According to the present invention, corresponding to the lead terminal being connected with charge pump capacitor i.e. capacitor lead wire terminal and filament The lead terminal of connection is that filament lead terminal is arranged in the same lead terminal row extended along the long side direction of display tube substrate Situation, the decline of display quality can be suppressed, suppress display tube substrate size and expand adjoint cost increase.
Brief description of the drawings
Fig. 1 is the schematic diagram that the circuit of the display unit for the fluorescent display tube for showing to possess first embodiment is formed；
Fig. 2A and Fig. 2 B are the schematic diagrames for illustrating fluorescent display tube construction；
Fig. 3 A and Fig. 3 B are the schematic diagrames for illustrating the Inner Constitution in charge pump circuit portion；
Fig. 4 is to show the schematic diagram that the circuit of existing display unit is formed；
Fig. 5 is shown to the size of the wiring resistance between charge pump capacitor and charge pump circuit portion to becoming with load The schematic diagram of result simulated is influenceed caused by dynamic variation in voltage；
Fig. 6 is the allocation position of each lead terminal formed on each terminal and the display tube substrate for show IC apparatus And the outline outside drawing of the fluorescent display tube of the example of the distribution between terminal and lead terminal；
Fig. 7 A to Fig. 7 E are for illustrating the configuration bit on anode pattern portion, IC apparatus and filament lead terminal Put relation, capacitor lead wire terminal and the schematic diagram of the restriction of the allocation position relation of filament lead terminal；
Fig. 8 be for illustrated capacitor terminal allocation position cause display tube substrate dimension enlargement schematic diagram；
Fig. 9 is the outline outside drawing of the fluorescent display tube of variation；
Figure 10 is the schematic diagram for illustrating the composition of the fluorescent display tube of the first case as second embodiment；
Figure 11 is the schematic diagram for illustrating the composition of the fluorescent display tube of the second case as second embodiment.
Description of reference numerals
1、1A、1B、1C：Fluorescent display tube
1a、1aA、1aB、1aC：Display tube substrate
An：Anode
Fi：Filament
2、2A、2C：IC apparatus
20：Charge pump circuit portion
27：Anode tap sub-portion
Cc1、Cc2：Charge pump capacitor
Ch：Smoothing capacity device
Vi：Input voltage source
Vd：Logic voltage source
SW1~SW3：Switch
20a、20b：On-off circuit
40、40A：Lead terminal aligning section
Tc11、Tc12、Tc21、Tc22：Capacitor lead wire terminal
Tvi：Input voltage lead terminal
Tif1、Tif2、...、Tifn：Data signal lead terminal
Tgnd：Ground lead terminal
Tf1、Tf2：Filament lead terminal
tc11、tc12、tc21、tc22：Capacitor terminal
tvi：Input voltage terminal
tif1、tif2、...、tifn：Data signal terminal
tgnd：Ground terminal
Wc：Capacitor distribution
Wvi：Input voltage distribution
Wch：Output voltage distribution
Wvd：Logic voltage distribution
Embodiment
Embodiments of the present invention are illustrated below.
In addition, explanation is carried out in the following order.
<1. first embodiment>
[composition of 1-1. display units]
[1-2. is on charge pump circuit portion]
[lime light in the case of charge pump circuit portion is set in 1-3.]
[wiring method of 1-4. embodiments]
<2. second embodiment>
<3. the summary of embodiment>
<4. variation>
<1. first embodiment>
[composition of 1-1. display units]
Fig. 1 is the signal that the circuit of the display unit 100 for the fluorescent display tube 1 for showing to possess first embodiment is formed Figure.In addition, fluorescent display tube is also labeled as " VFD " (Vacuum Fluorescent sometimes in the following description Display)。
Display unit 100 includes cell substrate 101, is installed on the fluorescent display tube 1 and controller of the cell substrate 101 102。
Controller 102 possesses for example including CPU (Central Processing Unit, central processing unit), ROM (Read Only Memory, read-only storage), RAM (Random Access Memory, random access memory) etc. miniature calculating Machine and form, control fluorescent display tube 1 display action.Controller 102 is provided for controlling the display to move to fluorescent display tube 1 The data signal of the n systems (n is more than 2 natural number) of work.
The voltage source of the input voltage VIN of cell substrate 101 including following charge pump circuit portions 20 be input voltage source Vi, The logic voltage VDD of supply voltage as the logic circuit in I/F (interface) decoder 21 voltage source is logic voltage source Vd.In addition, the power circuit (not shown) of these input voltage VINs, logic voltage VDD for example by being contained in display unit 100 Portion generates, such as can cause VIN=12V or so, VDD=5V or so.
In addition, input capacitor Ci, the electric charge of the external part as fluorescent display tube 1 are installed on cell substrate 101 Pump capacitor Cc, charge pump capacitor Cc2, smoothing capacity device Ch and resistance Ro.
Fluorescent display tube 1 includes the integrated circuit dress for being configured to IC (Integrated Circuit, integrated circuit) chip The 2, display part 3 based on luminescence display information is put, and including multiple lead terminal T.
Herein, the construction of fluorescent display tube 1 is illustrated according to Fig. 2A and Fig. 2 B.In addition, Fig. 2A is that perspective display is glimmering The general perspective of a part for light display tube 1, Fig. 2 B are that the outline of the fluorescent display tube 1 blocked along Fig. 2A A-A ' sections is cut Face figure.
Fluorescent display tube 1 has the covering member 1b structures by display tube substrate 1a and the surface for covering display tube substrate 1a Into sealing container 1c, in sealing container 1c formed with filament (direct-heated cathode) Fi, anode A n, grid G r display part 3.Herein, it is vacuum state in sealing container 1c.
Display part 3 is provided with the filament Fi (Fig. 2 B black circular portion) of multiple release electronics.Anode A n is being controlled from filament Form what fluorophor formed on the anode electrode for the electronics that Fi is discharged.Anode A n is for example formed at display tube by pattern printing Substrate 1a, it is arranged to correspond to the predetermined pattern of information that should be shown.Multiple anode A n of predetermined pattern will be arranged in like this Part be labeled as anode pattern portion 3a.
The fluorescent display tube 1 of this example such as be word in information, numeral in the case of, can be by one, the letter such as a word Breath is divided and shown by predetermined unit.In Fig. 2A and Fig. 2 B example, by the seven sections of parts that can show single numeral, letter etc. Anode A n (seven independent anode A n) form the viewing area of the predetermined unit part.Below by the aobvious of this predetermined unit part It is " displaying block " to show area marking.In anode pattern portion 3a, multiple such a displaying blocks are arranged with display tube substrate 1a.It is specific next Say, in this example, displaying block is arranged in a row on display tube substrate 1a.
In addition, on displaying block, the anode A n of a seven sections of parts as shown in Figure 2 A arrangement pattern only example, The arrangement pattern for forming the anode A n of displaying block is not limited to the pattern.
Grid G r is the mesh-shape electrode for accelerating the electronics discharged from filament Fi to anode An, is formed at each display Block.
Formed with multiple lead terminal T on display tube substrate 1a.These multiple lead terminal T include being used for from fluorescence display The outside input of pipe 1 drives the various electronic signals (data signal, supply voltage etc.) needed for filament Fi, anode A n and grid G r Lead terminal T.The lead of electric conductor composition is connected with each lead terminal T, via the cell substrate shown in the lead and Fig. 1 101 sides electrically connect.
In fluorescent display tube 1, covering member 1b is for example made up of glass, and at least the part relative with display tube substrate 1a is saturating It is bright.That is, it can see from outside by the transparent part as anode A n lights shown information.
Hereinafter, by like this in fluorescent display tube 1 side of display information face (in namely above-mentioned transparent part with The face of the opposite side in face relative anode A n) it is labeled as " surface S1 ".In addition, by fluorescent display tube 1 surface S1 it is opposite The face of side is labeled as " inner face S2 ".
According to fluorescent display tube 1, in anode pattern portion 3a displaying block during desired displaying block display information, to silk Pole Fi is applied with the state of driving voltage, the predetermined sun in couple the grid G r and the displaying block that are correspondingly arranged with the displaying block Pole An applies DC voltage.So as to the thermoelectricity that only predetermined anode A n fluorophor is discharged by filament Fi in the displaying block Son is excited and lighted, with this display information.
Illustrated referring next to Fig. 1.
In fluorescent display tube 1, for driving anode A n, grid G the r driving of the display part 3 shown in Fig. 2A and Fig. 2 B electric Road is arranged in IC apparatus 2.
Although eliminating diagram in Fig. 2A and Fig. 2 B, in fluorescent display tube 1, IC apparatus 2 is installed on display Pipe substrate 1a, together with display part 3 in confined space.That is, fluorescent display tube 1 is configured to so-called CIG (Chip In Glass, glass interplantation core)-VFD.
IC apparatus 2 has charge pump circuit portion 20, I/F decoders 21, oscillator 22, memory 23, timing control Portion 24, anode drive portion 25, raster data model portion 26, anode tap sub-portion 27 and gate terminal sub-portion 28 processed.In addition, anode tap sub-portion 27th, gate terminal sub-portion 28 represents that anode drive portion 25, raster data model portion 26 drive each anode A n, each grid G r respectively masterly Necessary multiple terminals.
Herein, IC apparatus 2 has：The above-mentioned n systems from controller 102 are received for I/F decoders 21 N digital signal terminal tif (tif1~tifn) of data signal；Resistance Ro and vibration on connection unit substrate 101 The oscillator terminals tosc that device 22 connects；Input voltage terminal for the input voltage VIN in input charge pump circuit portion 20 tvi；For will be formed in charge pump capacitor Cc1, Cc2 of cell substrate 101, smoothing capacity device Ch is connected respectively to charge pump The capacitor terminal tc (tc11, tc12, tc21, tc22) in circuit portion 20；Output voltage terminal tch；For input logic voltage The VDD logic voltage terminal tvd and ground terminal tgnd as ground terminal.
In addition, lead end corresponding with the above-mentioned each terminal t for being contained in IC apparatus 2 is provided with fluorescent display tube 1 Sub- T.Specifically n digital signal lead terminal Tif (Tif1~Tifn), oscillator lead terminal Tosc, input voltage leads Terminal Tvi, capacitor lead wire terminal Tc (Tc11, Tc1, Tc21, Tc22), output voltage lead terminal Tch, logic voltage lead Terminal Tvd and ground lead terminal Tgnd.
In addition, as lead terminal T, the filament lead for applying driving voltage to the filament Fi of display part 3 is additionally provided with Terminal Tf (Tf1, Tf2).In addition, filament Fi driving voltage is generated by the corresponding power circuit for being arranged at display unit 100. In this example, the driving voltage for making filament Fi is DC voltage.
In addition to filament lead terminal Ti1, Ti2, display tube is formed between each lead terminal T and corresponding terminal t Substrate 1a's connects such as the distribution formed by aluminium.
Herein, resistance Ro, input voltage source Vi, smoothing capacity device Ch, logic voltage source Vd are inserted respectively into oscillator and drawn Line terminals Tosc and ground connection between, input voltage lead terminal Tvi and ground connection between, output voltage lead terminal Tch with ground connection Between, logic voltage lead terminal Tvd and ground connection between.
In addition, in Fig. 1, each terminal t, lead terminal T allocation position may not reflect actual allocation position.
In IC apparatus 2, charge pump circuit portion 20 is together with charge pump capacitor Cc1, Cc2 and smoothing capacity device Ch Charge-pump type step-up circuit is formed, input voltage VIN is boosted to obtain output voltage Vo.Output voltage Vo is respectively as driving Dynamic anode A n, grid G r supply voltage and be supplied to anode drive portion 25, raster data model portion 26.
In addition, subsequently illustrate the Inner Constitution in the charge pump circuit portion 20 in this example.
I/F decoders 21 include shift register, counter, AND (with) circuit, OR (or) patrolling of being formed by combining of circuit Volume circuit, the data signal based on the n systems inputted via data signal terminal tif1~tifn from controller 102, from vibration The oscillator signal that device 22 exports, display data is write to the memory 23 being for example made up of RAM, controls the dynamic of timing control part 24 Make.
In this example, as the data signal of n systems, controller 102 at least supply chip selection signal CS, clock signal clk and Data-signal DAT.Data-signal DAT is, for example, the serial data using 8 bits as 1 word, including represents which anode A n made The control data of the display data lighted, the timing signal for adjusting the output of timing control part 24.I/F decoders 21 are according to piece Signal CS and clock signal clk are selected, obtains data-signal DAT each bit value, the number based on acquisition successively with a word unit It is believed that number writing display data, to the output control data of timing control part 24 to memory 23.
The oscillator signal that timing control part 24 is exported based on oscillator 22 and the control data from I/F decoders 21, enter The following control of row：It is defeated to the output timing controlled of the output display data of anode drive division 25, anode drive portion 25 from memory 23 Go out the output timing controlled of anode A n driving voltage, raster data model portion 26 export grid G r driving voltage output timing control System.
In addition, timing control part 24 also controls the switch motion of the various switches in charge pump circuit portion 20, related content Refer to follow-up explanation.
In this example, using following scanning display mode：Each displaying block is formed at while driving voltage is successively applied over Each grid G r, while driving voltage is applied into the anode A n that grid G r is the displaying block in driving, so as to predetermined Each displaying block is lighted during single pass successively.
Therefore, timing control part 24 is based on above-mentioned control data, and generation is as each grid G r of expression during each scanning ON/OFF timing " scanning signal " timing signal, and the scanning signal is output to raster data model portion 26.Raster data model portion 26 according to the scanning signal, and the output voltage Vo in self charge pump circuit in future portion 20 is as driving voltage via gate terminal sub-portion 28 It is sequentially applied to each grid G r.
In addition, the timing signal synchronous with grid G r driving timing is output to memory 23 and sun by timing control part 24 Pole drive division 25, the display data of each displaying block is set to be output to anode drive portion 25 from memory 23 successively, and to anode Drive division 25 indicates anode A n driving timing.
Output voltage Vo is made via anode tap sub-portion 27 according to the timing based on above-mentioned timing signal in anode drive portion 25 Anode A n is applied to for driving voltage, anode A n is the display based on each displaying block being as above sequentially output from memory 23 Data and the anode A n determined.Thus, display part 3 according to controller 102 instruction display information.
[1-2. is on charge pump circuit portion]
Then, reference picture 3A and Fig. 3 B illustrate to the Inner Constitution in charge pump circuit portion 20.
In addition, in Fig. 3 A and Fig. 3 B, Fig. 3 A also illustrate fixed while the Inner Constitution in charge pump circuit portion 20 is shown When control unit 24, charge pump capacitor Cc1, Cc2, smoothing capacity device Ch each capacitor, the lead involved by these capacitors Terminal T (Tc11, Tc12, Tc21, Tc22, Tch) and terminal t (tc11, tc12, tc21, tc22, tch), input voltage VIN institute The input voltage lead terminal Tvi and input voltage terminal tvi being related to.
As shown in Figure 3A, charge pump circuit portion 20 includes：Such as by MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, Metal-Oxide Semiconductor field-effect transistor) form three switch SW (switch SW1, switch SW2 and switch SW3), on-off circuit 20a and on-off circuit 20b.SW1, SW2, SW3 are switched in input voltage terminal Between tvi and output voltage terminal tch, connect and insert according to same sequence from input voltage terminal tvi sides.Each switch control letter Number Ss is supplied to switch SW1, SW2, SW3 from timing control part 24.Hereinafter, by for each switch SW1, SW2, SW3 switch control Signal Ss processed symbol is respectively labeled as " Ss1 ", " Ss2 ", " Ss3 " so that the numerical value at end is consistent.
Switch SW1 and switch SW2 tie point are connected with capacitor terminal tc12.Capacitor terminal tc12 is via capacitor Lead terminal Tc12 is connected with charge pump capacitor Cc1 positive pole side terminal.Charge pump capacitor Cc1 negative side terminal via Capacitor lead wire terminal Tc11 is connected with capacitor terminal tc11.
In addition, switch SW2 and switch SW3 tie point are connected with capacitor terminal tc22.Capacitor terminal tc22 via Capacitor lead wire terminal Tc22 is connected with charge pump capacitor Cc2 positive pole side terminal.Charge pump capacitor Cc2 negative pole side Son is connected via capacitor lead wire terminal Tc21 with capacitor terminal tc21.
Timing control part 24 supplies switch controlling signal St to on-off circuit 20a, on-off circuit 20b respectively.Below, by pin " St1 ", " St2 " are respectively labeled as so that the numerical value at end is consistent to each on-off circuit 20a, 20b switch controlling signal St.
On-off circuit 20a as shown in Figure 3 B, including based on switch Q1 and the push-pull circuit for switching Q2, Q1 is switched as these It is connected with the output point of the push-pull circuit of switch Q2 tie point with capacitor terminal tc11.
Q1, Q2 are switched according to the switch controlling signal St1 ON/OFF from timing control part 24.Wherein, Q1 is switched with as follows Mode is formed：Q1 is switched to open when switching Q2 and being to close, and it is pass to switch Q1 when switching Q2 to open.
In the state of switch Q1 is pass to open, switch Q2, push-pull circuit output point is connected with input voltage VIN.It is another Aspect, in switch Q1 to close, in the state of switch Q2 is opens, push-pull circuit output point is grounded via switch Q2.
On-off circuit 20b is also as on-off circuit 20a includes based on switch Q1 and switched Q2 push-pull circuit.On switch Circuit 20b, except switch Q1, Q2 are according to the switch controlling signal St2 ON/OFF from timing control part 24, push-pull circuit it is defeated Go out beyond being a little connected with capacitor terminal tc21, remaining composition is identical with on-off circuit 20a situation, therefore omits specifically It is bright.
Herein, timing control part 24 exports identical signal as switch controlling signal Ss1, Ss3, St1, is controlled as switch Signal Ss2, St2 processed, export these switch controlling signals Ss1, Ss3, St1 inversion signal.
According to charge pump circuit portion 20 as constructed as above, in make that switch SW1 is out according to switch controlling signal Ss1 first In the stage, switch SW2 is made according to switch controlling signal Ss2 to close.In addition, made according to switch controlling signal St1 in on-off circuit 20a Switch Q1 to close, switch Q2 is opens.
Therefore, in the first phase, for charge pump capacitor Cc1, charging current is via switch SW1 → capacitor terminal Tc12 → capacitor lead wire terminal Tc12 flowings, in the electric charge of charge pump capacitor Cc1 storage input voltage VIN parts.
Then, in switch SW1 is the second stage closed according to switch controlling signal Ss1, according to switch controlling signal Ss2 makes switch SW2 to open.
Here, in on-off circuit 20b, switch Q1 is made to close according to switch controlling signal St2, switch Q2 is to open.Namely Say, charge pump capacitor Cc2 via capacitor lead wire terminal Tc21 → capacitor terminal tc21 → on-off circuit 20b switch Q2 And negative side terminal is grounded.In addition, in second stage, in on-off circuit 20a sides, switch is made according to switch controlling signal St1 Q1 to open, switch Q2 to close, therefore charge pump capacitor Cc1 via capacitor lead wire terminal Tc11 → capacitor terminal tc11 → On-off circuit 20a switch Q1 is connected to input voltage VIN.
Therefore, in second stage, charging current via on-off circuit 20a switch Q1 → capacitor terminal tc11 → electricity Capacitor lead wire terminal Tc11 → charge pump capacitor Cc1 → capacitor lead wire terminal Tc12 → capacitor terminal tc12 → switch SW2 → capacitor terminal tc22 → capacitor lead wire terminal Tc22 flows to charge pump capacitor Cc2.Here, on-off circuit 20a Switch Q1 is connected with input voltage VIN, and therefore, the electric charge of charge pump capacitor Cc2 storages is the charging charge in charge pump Cc1 The electric charge of upper addition inputs voltage VIN parts.That is, storage can be with " the electric charge that VIN × 2 " represent.
Herein, as described above, switch controlling signal Ss3 be with switch controlling signal Ss1 identical signals, therefore first SW3 is switched in stage to open.In addition, the first stage, on-off circuit 20b switch Q1 is opens, and switch Q2 is closes, charge pump capacitor Device Cc2 negative side terminal is connected to input voltage VIN via switch Q1.
Therefore, in the case where turning back to the first stage from second stage, charging current is opened via on-off circuit 20b's Close Q1 → capacitor terminal tc21 → capacitor lead wire terminal Tc21 → charge pump capacitor Cc2 → capacitor lead wire terminal Tc22 → capacitor terminal tc22 → switch SW3 → output voltage terminal tch → output voltage lead terminal Tch flow to smoothing capacity Device Ch.That is, the electric charge of smoothing capacity device Ch storages is as described above, be the electricity that charge pump capacitor Cc2 is stored in second stage The electric charge of lotus addition inputs voltage VIN parts again.
As a result, in the charge pump circuit portion 20 of this example, electricity is exported as voltage between smoothing capacity device Ch two-terminal Vo is pressed, obtains the DC voltage of about 3 times of magnitude of voltage of input voltage VIN.
Herein, in the charge pump circuit portion 20 shown in Fig. 3 A and Fig. 3 B, as switching charge pump capacitor Cc1, Cc2 The element of charge/discharge, switch SW (SW1, SW2, SW3) is used without using general diode element.
In the case of using diode element, voltage, which occurs, in diode element with the switching of charge/discharge reduces, But voltage reduction can be reduced in the case of switch SW is used as above, easily realizes output voltage Vo Towards Higher Voltage.
[lime light in the case of charge pump circuit portion is set in 1-3.]
As described above, display unit 100 ' for example as shown in Figure 4 in the past, will include charge pump capacitor Cc1, Cc2 and Smoothing capacity device ch whole charge-pump type step-up circuit 50 is arranged on display base plate as the outer circuits of fluorescent display tube 1 ' 101’。
In this case, because charge pump capacitor Cc1, Cc2 and smoothing capacity device Ch are external, therefore as illustrated in the drawing IC apparatus 2 ', capacitor terminal tc11, tc12, tc21, tc22 in terminal t can be omitted.In this case, provided with use The switch control terminal tsw of the switch of the push-pull circuit of charge-pump type step-up circuit 50 is arranged in control.It is in addition, existing glimmering Light display tube 1 ' is provided with switch control lead terminal Tsw, as lead terminal T corresponding with switch control terminal tsw.
In addition, the charge-pump type step-up circuit 50 shown in Fig. 4 is the charge-pump type for the general structure for including diode element Booster circuit, its action is known technology, therefore is omitted the description.
However, as above by whole charge-pump type step-up circuit 50 it is external in the case of, can to use fluorescent display tube 1 ' User causes side to install the burden of charge-pump type step-up circuit 50 on cell substrate 101 '.
In view of this point, according to the fluorescent display tube 1 of embodiment, by the way that integrated electricity will be located in charge pump circuit portion 20 Mitigate the burden of user side in road device 2.
But in the case where IC apparatus 2 will be located in charge-pump type circuit portion 20, for connecting external electricity Wiring lengths between lotus pump capacitor Cc1, Cc1 and charge pump circuit portion 20 are elongated than ever.
As described above, the output voltage Vo of charge-pump type step-up circuit changes with load change.Therefore, anode A n In the case of lighting the load change that the changes such as rate, drive condition cause charge-pump type step-up circuit, charge-pump type step-up circuit Output voltage Vo be that anode A n driving voltage can also change, if the variation amplitude greatly if will readily appreciate that brightness Change, there is the anxiety of infringement display quality.
It is bigger that the wiring resistance in the circuit portion of charge pump action is administered in known charge pump-type booster circuit, then it is this adjoint The output voltage Vo of load change variation is more notable.Particularly charge pump capacitor Cc1, Cc2 and charge pump circuit portion 20 it Between wiring resistance it is big in the case of, output voltage Vo variation becomes notable.
Fig. 5 is shown to the size of the wiring resistance between charge pump capacitor Cc1, Cc2 and charge pump circuit portion 20 to companion With the result for influenceing to be simulated caused by the output voltage Vo of load change variation.
As shown in drawings, use ◆ shown curve is represented in the case of making wiring resistance less relative to the defeated of load current Go out voltage Vo change dynamic characteristic, the change dynamic characteristic in the case of making wiring resistance larger is represented with × shown curve.
Wired electric between charge pump capacitor Cc1, Cc2 and charge pump circuit portion 20 can confirm that according to Fig. 5 result The output voltage Vo changed in the case that resistance is big with load current amplitude of fluctuation can also become big.
In addition, in the case of IC apparatus 2 will be located in charge pump circuit portion 20, it is compared with the past to cause number of terminals Amount increase.Specifically, multiple capacitor terminal tc are set on IC apparatus 2 respectively, set on display tube substrate 1a Put multiple capacitor lead wire terminal Tc.Further, the capacitor connected between these terminals is formed on display tube substrate 1a to match somebody with somebody Line.
However, the limited space of distribution can be laid on display tube substrate 1a, due to capacitor terminal tc, capacitor lead wire end Sub- Tc allocation position relation, therefore capacitor distribution can not be effectively laid in limited space, having causes substrate size The anxiety of extension.
The extension of substrate size is related to cost increase, therefore should be suppressed.
[wiring method of 1-4. embodiments]
Therefore, embodiment discloses a kind of decline for suppressing display quality and suppresses display tube substrate 1a dimension enlargements institute companion With the increased wiring method of cost.
Fig. 6 is the outline outside drawing of fluorescent display tube 1, shows each terminal t possessed by IC apparatus 2 and is formed at The example of distribution between display tube substrate 1a each lead terminal T allocation position, terminal t and lead terminal T.
In addition, Fig. 6 shows the appearance of the fluorescent display tube from inner face S2 sides.
First, as described above, anode pattern portion 3a is arranged in a row by multiple displaying blocks forms, therefore the area to grow crosswise is formed Domain.Because anode pattern portion 3a as above grows crosswise setting, therefore the display tube substrate 1a formed with anode pattern portion 3a is also horizontal Long shape.
In addition, will be shown below pipe substrate 1a long side direction, short side direction be respectively labeled as " substrate long side direction ", " substrate short side direction ".
In the fluorescent display tube 1 of embodiment, formed with arranging drawing for multiple lead terminal T along substrate long side direction Line terminals aligning section 40.Lead terminal aligning section 40 is located at IC apparatus 2 and anode pattern portion on display tube substrate 1a 3a aligning part and a line (two end edges extended along long side direction among the side of display tube substrate 1a long side direction Among an end edge) between.
This example is provided only with a row lead terminal T.Therefore, lead is arranged with multiple end edges respectively along display tube substrate 1a Terminal T situation is compared, and realizes the result of scaling of display tube substrate 1a.
As shown in fig. 6, in the IC apparatus 2 of embodiment, capacitor terminal tc is arranged at IC apparatus 2 End edge among the end edge side relative with anode pattern portion 3a.In this example, IC apparatus 2 is formed as the plate of quadrilateral shape Shape, and relative with anode pattern portion 3a end edge side among four end edges sets each capacitor terminal tc.
Thus, same lead terminal arrangement is arranged in together with filament lead terminal Tf corresponding to capacitor lead wire terminal Tc The situation in portion 40, can shorten the capacitor distribution Wc between connection capacitor terminal tc and capacitor lead wire terminal Tc matches somebody with somebody line length Degree.
Herein, VFD Anodics drafting department 3a, IC apparatus 2 and filament lead terminal Tf configuration relation have as follows Restrict.
[restricting 1]
IC apparatus 2 is configured on substrate long side direction between anode pattern portion 3a and filament lead terminal Tf.
In addition, the feelings of same lead terminal aligning section 40 are arranged in together with filament lead terminal Tf in capacitor terminal Tc Under condition, in other words, it is arranged in capacitor lead wire terminal Tc and filament lead terminal Tf along the same of substrate long side direction extension In the case that lead terminal arranges, these capacitor lead wire terminal Tc and filament lead terminal Tf allocation position relation has following system About.
[restricting 2]
Whole capacitor lead wire terminal Tc are configured at the inside on substrate long side direction compared with filament lead terminal Tf. Also, except the outermost capacitor lead wire terminal Tc (in Fig. 6 on substrate long side direction among capacitor lead wire terminal Tc Tc11 the capacitor lead wire terminal Tc beyond) is configured at the inside on substrate long side direction compared with IC apparatus 2.Its In, configured as follows positioned at above-mentioned outermost capacitor lead wire terminal Tc：At least one compared with IC apparatus 2 The inside divided on substrate long side direction.
That is, by the capacitor lead wire terminal Tc arranged on substrate long side direction group (Tc11, Tc12 in Fig. 6, Tc21, Tc22) when being set to capacitor lead wire terminal group, the position of the capacitor lead wire terminal group on substrate long side direction is set It is set to what is overlapped positioned at above-mentioned outermost all capacitor lead wire terminal Tc with IC apparatus 2 on substrate short side direction The inside of position.
Reference picture 7A~Fig. 7 E " restrict 1 ", " restrict 2 " to illustrate to above-mentioned.
First, according to Fig. 7 A~Fig. 7 C to " restricting 1 " to illustrate.
In VFD, filament Fi has the thermograde from end to central portion, and nearby there is inclining for electronics burst size decline end To.Therefore, if filament Fi end has dimmed etc. near anode pattern portion 3a end lead close to anode pattern portion 3a Cause the anxiety of display quality decline.
Due to this point, VFD such as Fig. 7 A make anode pattern portion 3a and filament lead terminal the Tf phase on substrate long side direction Configured every predetermined extent.
But in this case, if as Fig. 7 B configure IC apparatus 2 on substrate long side direction than filament lead On the position of terminal Tf more laterals, then it can cause display tube substrate 1a dimension enlargement.
Therefore, as Fig. 7 C make IC apparatus 2 be configured at filament lead terminal Tf and anode on substrate long side direction Between drafting department 3a.
In addition, on " restricting 2 ", the substrate long side direction dimension enlargement based on suppression display tube substrate 1a, reducing and make an uproar The viewpoint of influence of the sound to filament drive system.
I.e., as illustrated in fig. 7d, capacitor lead wire terminal Tc is configured in substrate long side direction compared to filament lead terminal Tf More lateral in the case of, display tube substrate 1a substrate long side direction dimension enlargement can be caused.Therefore, capacitor lead wire end Sub- Tc is for example configured at the inside on substrate long side direction such as Fig. 7 E compared to filament lead terminal Tf.
Here, filament lead terminal Tf is located at the outermost of substrate long side direction in Pin arrangement portion 40.
Herein, if capacitor lead wire terminal Tc and filament lead terminal Tf is from obtaining closely, above-mentioned charge pump action is had The anxiety that is had undesirable effect to filament drive system of adjoint switching noise, therefore, it is necessary to the four-headed arrow such as Fig. 7 E makes silk Pole lead terminal Tf and capacitor terminal Tc every predetermined intervals.
According to such case, the outermost capacitor lead wire terminal Tc positioned at substrate long side direction is in substrate long side direction On position exist restrict.Specifically, it is contemplated that actual lead terminal T size, the size (base of IC apparatus 2 Length on plate long side direction), " restricted more than as described in 2 ", by position of the capacitor lead wire terminal group on substrate long side direction Install and be set to what is overlapped positioned at outermost all capacitor lead wire terminal Tc with IC apparatus 2 on substrate short side direction The inside of position.
In addition, the downsizing of the long side direction size for display tube substrate 1a, IC apparatus 2 is formed as substrate length The length of the edge direction shape more shorter than the length of substrate short side direction.
Due to above-mentioned restriction 1,2 using the configuration hand that capacitor terminal tc is configured relative to said integrated circuit device 2 Method, specifically using configuration capacitor in end edge side relative with anode pattern portion 3a among the end edge of IC apparatus 2 In the case of terminal tc gimmick, it is arranged in for capacitor lead wire terminal Tc and filament lead terminal Tf along substrate long side direction Extension same lead terminal row situation, can shortening capatcitor distribution Wc wiring lengths.
For example, in Fig. 6, side opposite with the end edge provided with capacitor terminal tc end edge or with lead terminal aligning section In the case that the end edge side of the opposite side of 40 relative end edges sets capacitor terminal tc, with around the week of IC apparatus 2 The mode enclosed lays capacitor distribution Wc.Compared with that situation, can shortening capatcitor distribution Wc wiring lengths.
Herein, in shortening capatcitor distribution Wc wiring lengths, such as can contemplate as Fig. 8 sets capacitor terminal tc It is placed in relative with lead terminal aligning section 40 end edge side among the end edge of IC apparatus 2.However, capacitor is so set As used in Fig. 8 shown in " X ", on display tube substrate 1a short side direction in the case of terminal tc, therefore, to assure that integrated circuit fills Putting has configuration capacitor distribution Wc space between 2 and lead terminal aligning section 40.As a result, display tube substrate 1a can be caused Short side direction on dimension enlargement.
On the other hand, according to the capacitor terminal tc of above-mentioned embodiment configuration, can suppress on this substrate short side direction Substrate size extension.That is, it is capable of shortening capatcitor distribution Wc wiring lengths, and suppresses display tube substrate 1a size Extension.
Because wiring lengths can be shortened, capacitor distribution Wc can be made to be changed into relatively low resistance, so as to Enough suppress above-mentioned output voltage Vo variation.That is, the decline of display quality can be suppressed.
So, according to the capacitor terminal tc of above-mentioned embodiment configuration, the decline of display quality can be suppressed, suppressed The adjoint cost increase of display tube substrate 1a dimension enlargements.
Illustrated referring next to Fig. 6.
In IC apparatus 2, anode tap sub-portion 27 and gate terminal sub-portion 28 and multiple capacitor terminal tc (tc11, Tc12, tc21, tc22) it is arranged at same end edge side.Also, in IC apparatus 2, multiple capacitor terminal tc are arranged on Than these anode tap sub-portions 27 and gate terminal sub-portion 28 closer to the side of lead terminal aligning section 40.
Thus, capacitor terminal tc can be configured at closer to capacitor lead wire terminal Tc position.Therefore, it is possible to more Shortening capatcitor distribution Wc length.
In addition, with shortening capatcitor distribution, can be by the driving distribution and capacitor distribution Wc shapes for driving anode Into in display tube substrate 1a same layer.Therefore, it is possible to form capacitor distribution Wc and driving distribution, energy in a manner of printed wiring Enough make it easy to form distribution.
In addition, in IC apparatus 2, input voltage terminal tvi is configured at the end edge where multiple capacitor terminal tc Side, and configure compared to multiple capacitor terminal tc closer to the side of lead terminal aligning section 40.
Thereby, it is possible to make connection input voltage lead terminal Tvi and input voltage terminal tvi input voltage distribution Wvi Wiring lengths specific capacitance device distribution Wc it is shorter.
Herein, compared with capacitor distribution Wc resistance, input voltage distribution Wvi resistance is to charge-pump type step-up circuit The output voltage fluctuation characteristic relative to load change caused by influence it is bigger.Therefore, matched somebody with somebody by as above shortening input voltage Line Wvi, it can further improve display quality.
Further, in IC apparatus 2, data signal terminal tif is arranged at the end relative with anode pattern portion 3a The end edge side of the opposite side on side.In addition, Fig. 6 shows that data signal terminal tif1, tif2 are arranged in data signal terminal tif Same end edge side.
Thus, the data signal distribution for connecting data signal terminal tif and digital signal lead terminal Tif is laid in electric capacity The end edge side of device terminal tc opposite side, therefore can reduce and should be disposed between IC apparatus 2 and anode pattern portion 3a Distribution quantity in boundary space.
Therefore, easy thickening capacitor distribution Wc width, in other words, is easily reduced capacitor distribution Wc resistance, from And it can further suppress the decline of display quality.
In addition, in fluorescent display tube 1, the electric capacity near anode tap sub-portion 27 is attached at least among capacitor distribution Wc Device terminal tc capacitor distribution Wc (being capacitor distribution Wc22 in Fig. 6 example), in IC apparatus 2 and anode pattern portion Boundary space between 3a extends to the direction towards the side of lead terminal aligning section 40.
Thus, (capacitor distribution Wc is formed entirely on display tube substrate 1a making capacitor distribution Wc not intersect each other Same layer) on the premise of, capacitor distribution Wc arranging it is relative with anode pattern portion 3a not in IC apparatus 2 The end edge side of the opposite side of end edge.
Therefore, the decline of display quality can be suppressed with respect to shortening capatcitor distribution Wc wiring lengths.
Then, in fluorescent display tube 1, each capacitor distribution Wc width is believed than connection data signal terminal tif and numeral The width of data signal distribution between number lead terminal Tif is thick.
By the resistance value that by capacitor distribution Wc width thickening, can so reduce capacitor distribution Wc.
Therefore, it is possible to further suppress the decline of display quality.
In addition, on the data signal inputted via data signal lead terminal Tif, as long as high level/low can be identified Level, the necessity for reducing the wiring resistance of data signal distribution are relatively low.
Also, in fluorescent display tube 1, input voltage distribution Wvi width is thicker than each capacitor distribution Wc width.
As above by input voltage distribution Wvi width thickening, the resistance value of input voltage distribution can be reduced.Accordingly, it is capable to The enough decline for further suppressing display quality.
In addition, in fluorescent display tube 1, the filament lead terminal Tf of lead terminal aligning section 40 is with IC apparatus 2 Be located at the position furthest away of the opposite sides of anode pattern portion 3a on the basis of position, be arranged among capacitor lead wire terminal Tc from IC apparatus 2 is immediate closest to capacitor lead wire terminal and being arranged to from 2 immediate filament of IC apparatus Lead terminal Tf is arranged with ground lead terminal closest between filament lead terminal (being filament lead terminal Tf2 in this example) Tgnd。
In addition, the ground lead terminal Tgnd in this example is configured on substrate short side direction all and IC apparatus 2 overlap.
Thereby, it is possible to reduce capacitor lead wire terminal Tc near from filament lead terminal Tf to caused by filament drive system Influence of noise, and can using closest to filament lead terminal and closest to the space between capacitor lead wire terminal as lead Terminal T configuration space effectively utilizes.
Therefore, it is possible to suppress the decline of display quality, effectively utilize the space on display tube substrate 1a.
Then, according to fluorescent display tube 1, closest to capacitor lead wire terminal and closest to silk in lead terminal aligning section 40 Ground lead terminal Tgnd and input voltage lead terminal Tvi are arranged between the lead terminal of pole.
Thus, closest to capacitor lead wire terminal and closest to the space enlargement between filament lead terminal, so as to Further reduce influence of the noise to filament drive system, and input voltage lead terminal Tvi can be made to be arranged to than most connecing Nearly capacitor lead wire terminal is closer to IC apparatus 2, so as to make input voltage distribution Wvi than each capacitor distribution Wc It is shorter.
That is, it can further reduce influence of the noise to filament drive system, and further improve and suppress under display quality The effect of drop.
In addition, in fluorescent display tube 1, the capacitor terminal tc of IC apparatus 2 is from close to lead terminal aligning section 40 Side start order arrangement according to capacitor terminal tc11, tc12, tc21, tc22, capacitor lead wire terminal Tc is from close The side of IC apparatus 2 starts the order arrangement according to capacitor lead wire terminal Tc11, Tc12, Tc21, Tc22.
Thereby, it is possible to the shortening capatcitor distribution Wc in the case of Uncrossed.
For the lead terminal aligning section 40 of fluorescent display tube 1, first illustrate each lead terminal T arrangement form.It is right below In the end of the long side direction of display tube substrate 1, the end of side where filament lead terminal Tf is labeled as " one end ", by its phase The end tossed about is labeled as " other end ".
As will also understand that according to the above description, in lead terminal aligning section 40, from the lateral another side in one end Filament lead terminal Tf1, Tf2, ground lead terminal Tgnd, input voltage lead terminal Tvi are configured with successively, and are arranged with Capacitor lead wire terminal group is capacitor lead wire terminal Tc11, Tc12, Tc21, Tc22.In the another of capacitor lead wire terminal group Side, output voltage lead terminal Tch, logic voltage lead terminal Tvd, oscillator lead end are arranged with order from a side Sub- Tosc, data signal lead terminal Tif1, Tif2.
In this example, the output voltage terminal tch of IC apparatus 2, logic voltage terminal tvd, oscillator terminals tosc, Data signal terminal tif1, tif2 are arranged among two end edges of the substrate long side direction of IC apparatus 2 and anode together The end edge side of the opposite side of end edge relative drafting department 3a.Also, accompany with this, connection output voltage terminal tch and output electricity Voltage lead wires terminal Tch output voltage distribution, connection logic voltage terminal tvd and logic voltage terminal Tvd logic voltage is matched somebody with somebody Line, connection oscillator terminal tosc and oscillator lead terminal Tosc oscillator distribution and respectively connect data signal terminal Tif1, tif2 and digital signal lead terminal Tif1, Tif2 data signal distribution arrange around IC apparatus 2.Specifically For, these distributions be disposed in display tube substrate 1a long side direction while (along substrate long side direction extension two while) among The space at (on the downside of paper while) between lead terminal aligning section 40 of side formed with lead terminal aligning section 40.
Herein, the outline outside drawing of reference picture 9 illustrates to the fluorescent display tube 1A as variation.In addition, with it is upper State that Fig. 6 is the same, Fig. 9 shows the appearance of the fluorescent display tube 1A from inner face S2 sides.
Fluorescent display tube 1A is different from the part of fluorescent display tube 1 and is to set display tube substrate 1aA to replace display tube base Plate 1a.Display tube substrate 1aA is different from being to set IC apparatus 2A to replace integrated circuit in place of display tube substrate 1a Device 2, and lead terminal aligning section 40A is set to replace lead terminal aligning section 40.
IC apparatus 2A be different from IC apparatus 2 the main distinction be input voltage terminal tvi not with Capacitor terminal tc is arranged at same end edge side, and is disposed on opposite end edge side.
In addition, lead terminal aligning section 40A is to draw with capacitor relative to the main distinction of lead terminal aligning section 40 Line terminals Tc22 is that the capacitor lead wire terminal Tc farthest from IC apparatus 2A is compared, positioned at capacitor lead wire terminal Tc11 The input voltage lead terminal Tvi of (closest to capacitor lead wire terminal) between ground lead terminal Tgnd is configured at substrate length The inside of edge direction.Specifically, the input voltage lead terminal Tvi of this example is configured to relative to capacitor lead wire terminal The inner side (being not configured with other lead terminal T) of Tc22 adjacent substrates long side directions.In this case, in input voltage lead Terminal Tvi inside, which is adjacent to, is configured with output voltage lead terminal Tch.
In display tube substrate 1aA, the configuration based on above-mentioned input voltage terminal tvi and input voltage lead terminal Tvi is closed System, around input voltage distribution Wvi is equipped, input voltage distribution Wvi wiring lengths increase compared with Fig. 6 situation.
In addition, lead terminal aligning section 40A capacitor lead wire terminal group be configured on substrate long side direction it is closer IC apparatus 2A position.Specifically, the capacitor lead wire terminal group of such case is matched somebody with somebody adjacent to IC apparatus 2A Put until a capacitor lead wire terminal Tc11 part overlaps on substrate short side direction with IC apparatus 2A.
In this case, capacitor distribution Wc1 is to keep straight on from capacitor terminal tc11 to lead terminal aligning section 40A sides Form is arranged and is connected with capacitor lead wire terminal Tc11.
The fluorescent display tube 1A of variation according to Fig. 9, by the way that input voltage terminal tvi is arranged on and capacitor End edge side opposite terminal tc will pass through so roundabout arranging input voltage distribution Wvi with roundabout arranging input voltage distribution Wvi And caused space is used, so as to improve anode pattern portion 3a anode pattern design freedom.
In addition, the input voltage distribution Wvi of Fig. 9 variation is longer than Fig. 6, but can be by changing input voltage lead Terminal Tvi position makes capacitor lead wire terminal group on substrate long side direction closer to IC apparatus 2A, therefore can contract Short each capacitor distribution Wc wiring lengths.That is, the wiring resistance caused by each capacitor distribution Wc wiring lengths shorten The increase of the wiring resistance caused by input voltage distribution Wvi wiring lengths increase can be offset by reducing, so as to avoid showing The state of affairs dropped in the case of showing quality than Fig. 6.In other words, display quality can reach the situation identical degree with Fig. 6.
In addition, Fig. 9 shows a case that anode pattern portion 3a Anodics An arrangement pattern is different from Fig. 6 example, but Fluorescent display tube 1A can also use anode arrangement pattern of the pattern as anode pattern portion 3a shown in Fig. 6.On the contrary, fluorescence display Pipe 1 can also use the anode arrangement pattern of the anode pattern portion 3a shown in Fig. 9.
Anode pattern portion 3a anode arrangement pattern is not limited to the anode arrangement figure that above-mentioned Fig. 2A, Fig. 6, Fig. 9 are illustrated Case, other patterns can be used.
<2. second embodiment>
It can be seen from above-mentioned Fig. 6, in first embodiment, output voltage terminal tch, logic voltage terminal tvd are respectively provided with The end of the opposite side of the end edge relative with anode pattern portion 3a among two end edges of the substrate long side direction of IC apparatus 2 Avris, correspondingly, connect output voltage terminal tch and output voltage lead terminal Tch output voltage distribution, connection logic electricity The sub- tvd of pressure side and logic voltage lead terminal Tvd logic voltage distribution arrange around IC apparatus 2.Specifically, this A little distributions via the side formed with lead terminal aligning section 40 among of display tube substrate 1a long side direction while and lead Space between terminal aligning section 40 arranges, wiring closet it is closely spaced.In Fig. 6 example, output voltage lead terminal Tch and Logic voltage lead terminal Tvd is adjacent to, correspondingly, output voltage distribution and the also adjacent arranging of logic voltage distribution.
In addition, output voltage distribution, logic voltage distribution are respectively labeled as " output voltage distribution Wch ", " logic below Voltage wire Wvd ".
, may be because of output voltage distribution in the case where above-mentioned output voltage distribution Wch and logic voltage distribution Wvd is neighbouring The electric current flowed in Wch causes logic voltage VDD to decline so that IC apparatus 2 malfunctions.Specifically, input electricity Moment flows high current on output voltage distribution Wch sometimes during source, comes from the electromagnetic induction of the high current and can decline moment and patrols Collect voltage VDD.With the decline of this logic voltage, have cause IC apparatus 2 unnecessarily reset this malfunction it Anxiety.
In addition, in Fig. 6 example, connection data signal terminal tif and digital signal lead terminal Tif data signal is matched somebody with somebody Line also with output voltage distribution Wch is neighbouring arranges, in this case, the magnitude of voltage of data signal is also under moment when putting into power supply Drop, the anxiety of malfunction occurs because the magnitude of voltage declines so as to also have.
Therefore, the composition of first case of the second embodiment according to Figure 10 or the composition of the second case shown in Figure 11 are prevented The only malfunction of IC apparatus.
In addition, in the following description for it is so far it is stated that part identical part assign same reference numerals And omit the description.
The fluorescent display tube 1B of first case composition is illustrated according to Figure 10.
Fluorescent display tube 1B is different from the part of fluorescent display tube 1 and is to set display tube substrate 1aB to replace display tube base Plate 1a.Display tube substrate 1aB is different from being output voltage distribution Wch via IC apparatus 2 in place of display tube substrate 1a Boundary space between anode pattern portion 3a arranges.
Herein, in fluorescent display tube 1B, connection and gate terminal of each terminal of anode tap sub-portion 27 with each anode A n The distribution (not shown) rather than printed wiring that each terminal in portion 28 and each grid G r connection are formed using wire bonding.It is this In the case of borders of the output voltage distribution Wch between anode tap sub-portion 27 and gate terminal sub-portion 28 and anode pattern portion 3a it is empty Between with being set to output voltage lead terminal Tch.Specifically, in this case output voltage distribution Wch empty via the border Between after pass through by the space between capacitor distribution Wc22 and anode pattern portion 3a with being set to output voltage lead terminal Tch.This example In, output voltage distribution Wch width is thicker than data signal distribution.
It is empty by the border as above by output voltage distribution Wch between IC apparatus 2 and anode pattern portion 3a Between arrange, therefore output voltage distribution Wch and logic voltage distribution Wvd equipping position are separated by lead terminal aligning section 40.
Therefore, output voltage distribution Wch and logic voltage distribution Wvd separation arranges, and can prevent because of output voltage distribution Logic voltage VDD decline caused by the electric current flowed in Wch, can prevent the malfunction of IC apparatus 2.
In addition, in fluorescent display tube 1B shown in Figure 10, the equipping position of output voltage distribution Wch and digital signal wiring Also separated by lead terminal aligning section 40.
Therefore, under the voltage that can equally prevent the data signal caused by the electric current flowed in output voltage distribution Wch Drop, so as to prevent the malfunction of IC apparatus 2.
Then, reference picture 11 illustrates to the fluorescent display tube 1C of second case.
Fluorescent display tube 1C is different from the part of fluorescent display tube 1 and is to set display tube substrate 1aC to replace display tube base Plate 1a, IC apparatus 2C is set to replace IC apparatus 2.
IC apparatus 2C is different from the part of IC apparatus 2 and is that output voltage terminal tch is arranged at and anode End edge side relative drafting department 3a.I.e., in this case output voltage terminal tch and each capacitor terminal tc, anode terminal Portion 27 is arranged at same end edge side.The output voltage terminal tch of this example is located at each electricity on display tube substrate 1aC short side direction Between container terminal tc and anode tap sub-portion 27.
Display tube substrate 1aC is different from the arranging form that display tube substrate 1a parts are output voltage distribution Wch.
As output voltage terminal tch is as above arranged at same end edge side with each capacitor terminal tc, anode tap sub-portion 27, In this case boundary space directions of the output voltage distribution Wch between IC apparatus 2C and anode pattern portion 3a is drawn The extension of the side direction of line terminals aligning section 40, which is matched somebody with somebody, is set to output voltage lead terminal Tch.Specifically, output electricity in this case Be press-fitted spaces of the line Wch between capacitor distribution Wc22 and anode pattern portion 3a and with being set to output voltage lead terminal Tch。
In said integrated circuit device 2C, logic voltage terminal tvd is arranged at the end edge relative with anode pattern portion 3a Opposite side end edge side, output voltage terminal tch is arranged at the end edge side relative with anode pattern portion 3a.
Thus, logic voltage distribution Wvd is disposed in lead terminal aligning section 40 and display tube substrate 1aC long side direction Space in side between a line, on the other hand, output voltage distribution Wch can be via IC apparatus 2C and anode pattern portion Boundary space between 3a is laid between lead terminal aligning section 40 and anode pattern portion 3a.
It therefore, there is no need to arrange to approach with logic voltage distribution Wvd by output voltage distribution Wch, can prevent because defeated Go out in voltage wire Wch the decline of logic voltage VDD caused by the electric current flowed, prevent IC apparatus 2C from malfunctioning.
In addition, the equipping position of output voltage distribution Wch and digital signal wiring is also by lead end in fluorescent display tube 1C Sub- aligning section 40 separates.
It is thus possible to enough prevent the voltage of the data signal caused by the electric current flowed in output voltage distribution Wch from declining, So as to prevent IC apparatus 2C from malfunctioning.
In addition, fluorescent display tube 1C output voltage terminal tch on display tube substrate 1aC short side direction positioned at multiple Between capacitor terminal tc and anode tap sub-portion 27.
Thereby, it is possible to each capacitor terminal tc is made output voltage terminal tch close to corresponding capacitor lead wire terminal Tc Close to output voltage lead terminal Tch.
, can be by shortening output electricity therefore, it is possible to obtain display quality inhibition by shortening capatcitor distribution Wc Press-fitting line Wch prevents the loss of output voltage (driving voltage of anode).
Then, in fluorescent display tube 1C, output voltage distribution Wch is between IC apparatus 2C and anode pattern portion 3a Boundary space towards the side direction of lead terminal aligning section 40 extend.
Thus, output voltage distribution Wch is arranged without relative with anode pattern portion 3a in IC apparatus 2C The end edge side of the opposite side of end edge.
It therefore, there is no need to be adjacent to logic voltage distribution Wvd and arrange output voltage distribution Wch, can prevent because of output Logic voltage VDD caused by the electric current flowed in voltage wire Wch declines, and prevents IC apparatus 2C from malfunctioning.
<3. the summary of embodiment>
The IC apparatus (2 or 2A or 2C) of above-mentioned embodiment is the IC apparatus in fluorescent display tube, should Fluorescent display tube includes：Discharge the filament Fi of electronics；Display tube substrate (1a or 1aA or 1aB or 1aC), it has control electronics The anode pattern portion 3a and multiple lead ends that the anode A n formed with fluorophor is arranged with predetermined pattern on mobile anode electrode Sub- T；And IC apparatus, it is arranged at display tube substrate and drives sun based on the electronic signal inputted via lead terminal Pole, IC apparatus include：Charge pump circuit portion 20, be generate anode driving voltage charge-pump type step-up circuit in extremely Few circuit portion in addition to charge pump capacitor Cc；And multiple capacitor terminal tc, it is connected via predetermined lead terminal It is arranged at each charge pump capacitor and the charge pump circuit portion of the outside of fluorescent display tube.
Also, multiple capacitor terminals are arranged at end edge relative with anode pattern portion in the end edge of the IC apparatus Side.
As described above, the lead terminal being connected with charge pump capacitor i.e. capacitor lead wire terminal, drawing of being connected with filament Line terminals be filament lead terminal be arranged in along display tube substrate long side direction extension same lead terminal row in the case of, IC apparatus is configured on above-mentioned long side direction between anode pattern portion and filament lead terminal.In addition, in the situation Under, position of the capacitor lead wire terminal group on above-mentioned long side direction is set on above-mentioned long side direction and is located at outermost The inside of position that is overlapped with IC apparatus on display tube substrate short side direction of all capacitor lead wire terminals.
Here, when shortening the wiring lengths of capacitor distribution of connection capacitor terminal and capacitor lead wire terminal, examine Consider to be arranged at capacitor terminal in the end edge of IC apparatus and be arranged with capacitor lead wire terminal with display tube substrate The relative end edge side in the side of side.But in the case of being configured so that capacitor terminal, on the short side direction of display tube substrate, Being necessary to ensure that has the space of configuration capacitor distribution between IC apparatus and the aligning section of lead terminal, so as to cause to show Show the dimension enlargement on the short side direction of pipe substrate.
, can by the way that capacitor terminal to be as above arranged to end edge side relative with anode pattern portion in IC apparatus The problem of preventing the substrate size on above-mentioned short side direction from magnifying, and roundabout arranging capacitor distribution is not needed, so as to Enough relative shortening wiring lengths.Due to can shortening capatcitor distribution, therefore can reduce charge-pump type step-up circuit with load become The dynamic output voltage fluctuation amplitude occurred, so as to suppress brightness change.
As above, according to present embodiment, it is arranged in by capacitor lead wire terminal and filament lead terminal along substrate long side The situation of the same lead terminal row of direction extension, can suppress display quality decline, suppress display tube substrate size and expand institute Adjoint cost increase.
In addition, according to the IC apparatus of embodiment, the length in length and breadth of display tube substrate is different in fluorescent display tube, The IC apparatus and anode pattern portion arrange on the long side direction of display tube substrate, on display tube substrate, with electric charge The lead terminal of pump capacitor connection is that capacitor lead wire terminal is arranged at each charge pump capacitor, also, display tube substrate On formed with capacitor lead wire terminal together with other lead terminals along long side direction arrange lead terminal aligning section, the lead Terminal arrangement portion is located at the side of the IC apparatus and the aligning part and the long side direction of display tube substrate in anode pattern portion Between middle a line.
Also, possessing the drive end for applying driving voltage to anode with multiple capacitor terminal identical end edge sides Sub (anode tap sub-portion 27), multiple capacitor terminals are arranged on than drive terminal closer to lead terminal aligning section side.
Thus, capacitor terminal can be configured at closer to the position of capacitor lead wire terminal.Therefore, it is possible to more shorten company Connect the length of the capacitor distribution of capacitor terminal and capacitor lead wire terminal.
In addition, in shortening capatcitor distribution, can be by for driving the driving distribution of anode and capacitor distribution to be formed In the same layer of display tube substrate., can be easy therefore, it is possible to form capacitor distribution and driving distribution in a manner of printed wiring Form distribution.
Then, according to the IC apparatus (2 or 2C) of embodiment, display tube in fluorescent display tube (1 or 1B or 1C) The long side of the difference of length in length and breadth of substrate (1a or 1aB or 1aC), the IC apparatus and anode pattern portion in display tube substrate Arranged on direction, on display tube substrate, the i.e. capacitor lead wire terminal of lead terminal being connected with charge pump capacitor is arranged at Each charge pump capacitor, also, on display tube substrate formed with capacitor lead wire terminal together with other lead terminals along length The lead terminal aligning section 40 of edge direction arrangement, the lead terminal aligning section are located at the IC apparatus and anode pattern portion In the side of the long side direction of aligning part and display tube substrate between a line, have and be used to input to charge pump circuit portion Input voltage lead terminal Tvi of the input voltage from the outside input of fluorescent display tube.
Then, with being arranged on multiple capacitor terminal identical end edge sides than multiple capacitor terminals closer to lead terminal The side in row portion is configured with the input voltage terminal tvi for inputting the input voltage via input voltage lead terminal.
Thereby, it is possible to the wiring lengths for the input voltage distribution for making connection input voltage lead terminal and input voltage terminal Specific capacitance device distribution is shorter.
Herein, compared with the resistance of capacitor distribution, the phase of the resistance of input voltage distribution to charge-pump type step-up circuit Influenceed for caused by the output voltage fluctuation characteristic of load change bigger.Therefore, by as above shortening input voltage distribution, energy It is enough further to improve display quality.
Again then, according to the IC apparatus (2 or 2A or 2C) of embodiment, fluorescent display tube (1a or 1aB or 1aC) The length in length and breadth of middle display tube substrate is different, and the IC apparatus and anode pattern portion are on the long side direction of display tube substrate Arrangement, on display tube substrate, the lead terminal i.e. capacitor lead wire terminal being connected with charge pump capacitor is arranged at each electricity Lotus pump capacitor, also, on display tube substrate formed with capacitor lead wire terminal together with other lead terminals along long side direction The lead terminal aligning section of arrangement, the lead terminal aligning section are located at the IC apparatus and the aligning part in anode pattern portion Between a line in the side of the long side direction of display tube substrate, have from the outside input of fluorescent display tube and be used for display control Data signal data signal lead terminal.
Also, the end edge side of the opposite side of the end edge relative with anode pattern portion possesses draws for inputting via data signal The data signal terminal of the data signal of line terminals.
Thus, the data signal distribution for connecting data signal terminal sum word signal lead terminal is laid in and capacitor end The opposite end edge side in side where sub, therefore reduction should be disposed in the boundary space between IC apparatus and anode pattern portion Distribution quantity.
Therefore, the width of easy thickening capacitor distribution, display quality decline can further be suppressed.
In addition, according to the IC apparatus 2C of embodiment, including：Logic voltage terminal tvd, it, which is inputted, performs anode The supply voltage of the logic circuit of the display control of drafting department is logic voltage；And output voltage terminal tch, it supplies electric charge The output voltage of pump-type booster circuit, display tube substrate 1aC length in length and breadth is different in fluorescent display tube 1C, integrated circuit dress Put and arranged with anode pattern portion on the long side direction of display tube substrate, on display tube substrate, is connected with charge pump capacitor Lead terminal be that capacitor lead wire terminal is arranged at each charge pump capacitor, also, formed with electric capacity on display tube substrate The lead terminal aligning section that device lead terminal arranges together with other lead terminals along long side direction, the lead terminal aligning section In the side of the long side direction of aligning part and the display tube substrate in the IC apparatus and anode pattern portion a line it Between, and include the lead terminal being connected with logic voltage terminal i.e. logic voltage lead terminal Tvd and and output voltage terminal The lead terminal of son connection is output voltage lead terminal Tch, and logic voltage terminal is arranged at the end relative with anode pattern portion The end edge side of the opposite side on side, output voltage terminal are arranged at the end edge side relative with anode pattern portion (referring to the second embodiment party The second case of formula).
Thus, the logic voltage distribution for connecting logic voltage terminal and logic voltage lead terminal is disposed in lead terminal row Space in the side of the long side direction of row portion and display tube substrate between a line, on the other hand, connection output voltage terminal and The output voltage distribution of output voltage lead terminal can be via the boundary space cloth between IC apparatus and anode pattern portion Between lead terminal aligning section and anode pattern portion.
It therefore, there is no need to proximally configure output voltage distribution and logic voltage distribution, can prevent because output voltage is matched somebody with somebody The decline of logic voltage, prevents IC apparatus from malfunctioning caused by the electric current flowed in line.
Then, according to the IC apparatus 2C of embodiment, possess with multiple capacitor terminal identical end edge sides For applying the drive terminal (anode tap sub-portion 27) of driving voltage to anode, output voltage terminal is display tube substrate 1aC's On short side direction between multiple capacitor terminals and drive terminal.
Thereby, it is possible to make each capacitor terminal close to corresponding capacitor lead wire terminal, and approach output voltage terminal Output voltage lead terminal.
, can be by shortening output voltage therefore, it is possible to obtain display quality inhibition by shortening capatcitor distribution Distribution prevents output voltage (driving voltage of anode) from losing.
In addition, the fluorescent display tube (1 or 1A or 1B or 1C) of embodiment includes：Discharge the filament Fi of electronics；Display tube Substrate (1a or 1aA or 1aB or 1aC), it has the anode (An) formed with fluorophor on the anode electrode of control electronics movement With the anode pattern portion 3a and multiple lead terminal T of predetermined pattern arrangement；And IC apparatus (2 or 2A or 2C), it sets It is placed in display tube substrate and anode is driven based on the signal inputted via lead terminal, IC apparatus includes：Charge pump electricity Road portion 20, be the driving voltage for generating anode charge-pump type step-up circuit among electricity at least in addition to charge pump capacitor Cc Road portion；And multiple capacitor terminal tc, it is connected in each outside the fluorescent display tube via predetermined lead terminal Charge pump capacitor and charge pump circuit portion, multiple capacitor terminals are arranged in the end edge of IC apparatus and anode pattern The relative end edge side in portion.
It can also be obtained by the fluorescent display tube of this embodiment identical with the IC apparatus of above-mentioned embodiment Functions and effects.
In addition, in the fluorescent display tube of embodiment, the length in length and breadth of display tube substrate is different, IC apparatus and sun Pole drafting department arranges on the long side direction of display tube substrate, on display tube substrate, the lead that is connected with charge pump capacitor Terminal is that capacitor lead wire terminal Tc is arranged at each charge pump capacitor, also, is drawn on display tube substrate formed with capacitor The lead terminal aligning section that line terminals arrange together with other lead terminals along long side direction, the lead terminal aligning section is positioned at collection Into in the side of the long side direction of the aligning part and display tube substrate in circuit arrangement and anode pattern portion between a line.
Also, IC apparatus has is applying driving electricity to anode with multiple capacitor terminal identical end edge sides The drive terminal (anode tap sub-portion 27) of pressure, being arranged on for multiple capacitor terminals arrange than drive terminal closer to lead terminal The side in portion.
Thus, capacitor terminal can be configured at closer to the position of capacitor lead wire terminal.Therefore, it is possible to more shorten company Connect the length of the capacitor distribution of capacitor terminal and capacitor lead wire terminal.
In addition, in shortening capatcitor distribution, can be by for driving the driving distribution of anode and capacitor distribution to be formed In the same layer of display tube substrate., can be easy therefore, it is possible to form capacitor distribution and driving distribution in a manner of printed wiring Form distribution.
Then, according to the fluorescent display tube of embodiment, the capacitor of capacitor lead wire terminal and capacitor terminal is connected The capacitor distribution being at least connected in distribution Wc near the capacitor terminal of drive terminal, in IC apparatus and anode Boundary space between drafting department extends towards lead terminal aligning section side direction.
Thus, under the premise of making capacitor distribution Uncrossed each other, the arranging of all capacitor distributions is without around collection The end edge side of the opposite side of the end edge relative with anode pattern portion into circuit arrangement.
Therefore, display quality decline can be suppressed with respect to the wiring lengths of shortening capatcitor distribution.
Again then, according to the fluorescent display tube (1 or 1B or 1C) of embodiment, display tube substrate (1a or 1aB or 1aC) Length is different in length and breadth, and IC apparatus (2 or 2C) and anode pattern portion arrange on the long side direction of display tube substrate, aobvious Show on pipe substrate, the lead terminal being connected with charge pump capacitor i.e. capacitor lead wire terminal is arranged at each charge pump capacitor Device, also, drawing on display tube substrate formed with capacitor lead wire terminal together with other lead terminals along what long side direction arranged Line terminals aligning section 40, the lead terminal aligning section are located at IC apparatus and the aligning part and display tube in anode pattern portion In the side of the long side direction of substrate between a line, have and be used for the input voltage that charge pump circuit portion inputs from the fluorescence The input voltage lead terminal (Tvi) of the outside input of display tube.
Also, IC apparatus than multiple capacitor terminals with multiple capacitor terminal identical end edge sides and more connecing The side of nearly lead terminal aligning section has the Input voltage terminal for being used for inputting the input voltage VIN via input voltage lead terminal Sub- tvi.
Thus, the wiring lengths ratio of the input voltage distribution of connection input voltage lead terminal and input voltage terminal can be made Capacitor distribution is shorter.
Therefore, it is possible to further improve display quality.
In addition, according to the fluorescent display tube (1 or 1A or 1B or 1C) of embodiment, the length in length and breadth of display tube substrate is not Together, IC apparatus and anode pattern portion arrange on the long side direction of display tube substrate, on display tube substrate, with electric charge The lead terminal of pump capacitor connection is that capacitor lead wire terminal is arranged at each charge pump capacitor, also, display tube substrate On formed with capacitor lead wire terminal together with other lead terminals along long side direction arrange lead terminal aligning section, the lead Terminal arrangement portion is located in the side of the aligning part of IC apparatus and anode pattern portion and the long side direction of display tube substrate Between a line, there is the data signal lead end for the data signal for being used for display control from the outside input of the fluorescent display tube Sub- Tif.
Also, IC apparatus has data signal in the end edge side of the opposite side of the end edge relative with anode pattern portion Terminal tif, data signal terminal are used to input the data signal via data signal lead terminal.
Thus, the data signal distribution for connecting data signal terminal sum word signal lead terminal is laid in and capacitor end The opposite end edge side in side where sub, therefore reduction should be disposed in the boundary space between IC apparatus and anode pattern portion Distribution quantity.
Therefore, the width of easy thickening capacitor distribution, display quality decline can further be suppressed.
Then, in the fluorescent display tube (1 or 1A or 1B or 1C) of embodiment, capacitor terminal and capacitor lead wire are connected Data signal distribution of each capacitor distribution Wc of the terminal width than connecting data signal terminal sum word signal lead terminal Width it is thick.
By the way that so the width thickening of capacitor distribution, the resistance value of capacitor distribution are reduced.
Therefore, it is possible to further suppress the decline of display quality.
Again then, connection input voltage terminal and input in the fluorescent display tube (1 or 1A or 1B or 1C) of embodiment The input voltage distribution Wvi of voltage lead terminal width is than connection capacitor terminal and each capacitor of capacitor lead wire terminal The width of distribution is thick.
By the way that so the width thickening of input voltage distribution, the resistance value of input voltage distribution are reduced.
Therefore, it is possible to further suppress the decline of display quality.
In addition, the length in length and breadth of display tube substrate is different in the fluorescent display tube (1 or 1A or 1B or 1C) of embodiment, collection Arranged into circuit arrangement and anode pattern portion on the long side direction of display tube substrate, on display tube substrate, with charge pump electricity The lead terminal of container connection is that capacitor lead wire terminal is arranged at each charge pump capacitor, also, shape on display tube substrate Into the lead terminal aligning section for thering is capacitor lead wire terminal to be arranged together with other lead terminals along long side direction, the lead terminal Aligning section is located in the side of the aligning part of IC apparatus and anode pattern portion and the long side direction of display tube substrate one Between side, have from the filament lead terminal Tfi of the driving voltage of the outside input filament of the fluorescent display tube and as ground connection The ground lead terminal Tgnd of terminal.
Also, in lead terminal aligning section, filament lead terminal is on the basis of the position of IC apparatus positioned at most The position of opposite side away from anode pattern portion, it is arranged to nearest from IC apparatus most connect in capacitor lead wire terminal Nearly capacitor lead wire terminal, with being arranged to the filament lead terminal nearest from IC apparatus i.e. closest to filament lead terminal Between be arranged with ground lead terminal.
Thus, shadow of the noise to filament drive system in the case that reduction filament lead terminal is near from capacitor lead wire terminal Ring, and can match somebody with somebody closest to filament lead terminal and closest to the space between capacitor lead wire terminal as lead terminal Effectively utilized between being empty.
Therefore, it is possible to effectively utilize the space on display tube substrate while suppressing display quality and declining.
Then, according to the fluorescent display tube (1 or 1B or 1C) of embodiment, in lead terminal aligning section 40, most connecing Nearly capacitor lead wire terminal and closest to being arranged with ground lead terminal between filament lead terminal and for from the fluorescence display The input voltage lead terminal for the input voltage that the outside input of pipe inputs to charge pump circuit portion.
Thereby, it is possible to reduce closest to capacitor lead wire terminal and closest to the spatial expansion between filament lead terminal and Influence to noise caused by filament drive system, and input voltage lead terminal can be made to be arranged to than closest to capacitor Lead terminal can make input voltage distribution more shorter than each capacitor distribution closer to IC apparatus.
That is, it can further reduce influence of the noise to filament drive system, and further improve and suppress under display quality The effect of drop.
Again then, in the fluorescent display tube 1B of embodiment, IC apparatus 2 includes：Logic voltage terminal tvd, its The supply voltage that input performs the logic circuit of the display control in anode pattern portion is logic voltage；And output voltage terminal Tch, it supplies the output voltage of charge-pump type step-up circuit, and display tube substrate 1aB length in length and breadth is different, integrated circuit dress Put and arranged with anode pattern portion on the long side direction of display tube substrate, on display tube substrate, is connected with charge pump capacitor Lead terminal be that capacitor lead wire terminal is arranged at each charge pump capacitor, also, formed with electric capacity on display tube substrate The lead terminal aligning section that device lead terminal arranges together with other lead terminals along long side direction, lead terminal arrangement position In the IC apparatus and anode pattern portion aligning part and display tube substrate long side direction side between a line, What is be connected including the lead terminal i.e. logic voltage lead terminal Tvd being connected with logic voltage terminal and with output voltage terminal draws Line terminals are output voltage lead terminal Tch, and in IC apparatus, logic voltage terminal and output voltage terminal are arranged at The end edge side of the opposite side of the end edge relative with anode pattern portion, connection logic voltage terminal and logic voltage lead terminal are patrolled Collect voltage wire Wvd to arrange between a line in the side of lead terminal aligning section and the long side direction of display tube substrate, even The output voltage distribution Wch for connecing output voltage terminal and output voltage lead terminal is disposed in anode pattern portion and integrated circuit dress Boundary space between putting is arranged (referring to the first case of second embodiment).
Thus, the equipping position of output voltage distribution and logic voltage distribution is separated by lead terminal aligning section.
Therefore, output voltage distribution and logic voltage distribution are separated by arranging, therefore can prevent because in output voltage distribution The decline of logic voltage, prevents IC apparatus from malfunctioning caused by the electric current of flowing.
In addition, in the fluorescent display tube 1C of embodiment, IC apparatus 2C includes：Logic voltage terminal, it is inputted The supply voltage for performing the logic circuit of the display control in anode pattern portion is logic voltage；And output voltage terminal, it is supplied To the output voltage of charge-pump type step-up circuit, display tube substrate 1aC length in length and breadth is different, the IC apparatus and anode Drafting department arranges on the long side direction of display tube substrate, on display tube substrate, the lead end that is connected with charge pump capacitor Son is that capacitor lead wire terminal is arranged at each charge pump capacitor, also, formed with capacitor lead wire end on display tube substrate The lead terminal aligning section that son arranges together with other lead terminals along long side direction, the lead terminal aligning section are integrated positioned at this In the side of the long side direction of the aligning part and display tube substrate in circuit arrangement and anode pattern portion between a line, including：With The lead terminal of logic voltage terminal connection is logic voltage lead terminal and the lead terminal being connected with output voltage terminal That is output voltage lead terminal, logic voltage terminal are arranged at the end edge side of the opposite side of the end edge relative with anode pattern portion, Output voltage terminal is arranged at the end edge side relative with anode pattern portion (referring to the second case of second embodiment).
Thus, the logic voltage distribution for connecting logic voltage terminal and logic voltage lead terminal is disposed in lead terminal row Space in the side of the long side direction of row portion and display tube substrate between a line, on the other hand, connection output voltage terminal and Boundary space of the output voltage distribution of output voltage lead terminal between IC apparatus and anode pattern portion is laid Between lead terminal aligning section and anode pattern portion.
It therefore, there is no need to proximally arrange output voltage distribution and logic voltage distribution, can realize prevents because of output electricity The decline of logic voltage, prevents IC apparatus from malfunctioning caused by the electric current flowed in press-fitting line.
Then, in the fluorescent display tube 1C of embodiment, IC apparatus with multiple capacitor terminal identical ends Avris possesses the drive terminal for applying driving voltage to anode, and output voltage terminal is on the short side direction of display tube substrate Between multiple capacitor terminals and drive terminal.
Thereby, it is possible to make each capacitor terminal close to corresponding capacitor lead wire terminal, make output voltage terminal close to defeated Go out voltage lead terminal.
, can be by shortening output voltage therefore, it is possible to obtain display quality inhibition by shortening capatcitor distribution Distribution prevents the loss of output voltage (driving voltage of anode).
Again then, in the fluorescent display tube 1C of embodiment, output voltage terminal and output voltage lead terminal are connected Boundary space of the output voltage distribution between IC apparatus and anode pattern portion towards lead terminal aligning section side To extension.
Thus, the arranging of output voltage distribution is without end edge relative with anode pattern portion in IC apparatus The end edge side of opposite side.
It therefore, there is no need to arranging output voltage distribution adjacent with logic voltage distribution, can prevent because of output voltage distribution Logic voltage caused by the electric current of middle flowing declines, and prevents IC apparatus from malfunctioning.
<4. variation>
More than, the embodiments of the present invention are illustrated, but the present invention should not be limited to it is described above specific Example.
Although for example, it is applied to the grid formed with the electronics for accelerating filament Fi to be discharged exemplified with the present invention above The situation of pole Gr fluorescent display tube, but the present invention may also apply to using the glimmering of the so-called diode configuration for eliminating grid G r Light display tube.
Although should in the case where setting two charge-pump type capacitors (about boosting three times) in addition, having enumerated above With the present invention example, but charge-pump type capacitor be one situation or more than three in the case of can also be applicable this hair It is bright.

Claims (19)

1. a kind of IC apparatus, is the IC apparatus in fluorescent display tube, the fluorescent display tube includes：Release electricity The filament of son；Display tube substrate, it has anode pattern portion and multiple lead terminals, and the anode pattern portion is the control electricity The anode pattern portion that the anode formed with fluorophor is arranged with predetermined pattern on the anode electrode of the movement of son；It is and described integrated Circuit arrangement, it is arranged at the display tube substrate and drives the sun based on the electronic signal inputted via the lead terminal Pole, wherein,
The IC apparatus includes：
Charge pump circuit portion, be the driving voltage for generating the anode charge-pump type step-up circuit among at least except charge pump electricity Circuit portion beyond container；And
Multiple capacitor terminals, it is connected in each of the outside of the fluorescent display tube via the predetermined lead terminal The charge pump capacitor and the charge pump circuit portion,
The multiple capacitor terminal is arranged at relative with the anode pattern portion among the end edge of the IC apparatus End edge side.
2. IC apparatus according to claim 1, wherein,
The length in length and breadth of display tube substrate described in the fluorescent display tube is different, the IC apparatus and the anode Drafting department is arranged on the long side direction of the display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side,
Possessing the drive for applying the driving voltage to the anode with the multiple capacitor terminal identical end edge side Moved end,
The multiple capacitor terminal is arranged at than the drive terminal closer to the position of the lead terminal aligning section.
3. IC apparatus according to claim 1 or 2, wherein,
The length in length and breadth of display tube substrate described in the fluorescent display tube is different, the IC apparatus and the anode Drafting department is arranged on the long side direction of the display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, with the defeated of the input voltage for being used to input to the charge pump circuit portion from the outside input of the fluorescent display tube Enter voltage lead terminal,
With on the multiple capacitor terminal identical end edge side, than the multiple capacitor terminal closer to the lead end The side of sub- aligning section is configured with the input voltage for inputting the input voltage via the input voltage lead terminal Terminal.
4. IC apparatus according to claim 1 or 2, wherein,
The length in length and breadth of display tube substrate described in the fluorescent display tube is different, the IC apparatus and the anode Drafting department is arranged on the long side direction of the display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and with the data signal lead for the data signal for being used for display control from the outside input of the fluorescent display tube Terminal,
Possess in the end edge side of the opposite side of the end edge relative with the anode pattern portion and believe for inputting via the numeral The data signal terminal of the data signal of number lead terminal.
5. IC apparatus according to claim 1 or 2, in addition to：
Logic voltage terminal, it is logic that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion, Voltage；And
Output voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit,
In the fluorescent display tube,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and comprising the lead terminal being connected with the logic voltage terminal i.e. logic voltage lead terminal and with it is described The lead terminal of output voltage terminal connection is output voltage lead terminal,
The logic voltage terminal is arranged at the end edge side of the opposite side of the end edge relative with the anode pattern portion, the output Voltage terminal is arranged at the end edge side relative with the anode pattern portion.
6. IC apparatus according to claim 5, wherein,
Possesses the driving for applying the driving voltage to the anode with the multiple capacitor terminal identical end edge side Terminal,
The output voltage terminal on the short side direction of the display tube substrate positioned at the multiple capacitor terminal with it is described Between drive terminal.
7. a kind of fluorescent display tube, including：
Discharge the filament of electronics；
Display tube substrate, there is the anode formed with fluorophor on the anode electrode for the movement for controlling the electronics to be schemed with predetermined for it The anode pattern portion of case arrangement and multiple lead terminals；And
IC apparatus, it is arranged at the display tube substrate based on described in the signal driving inputted via the lead terminal Anode, wherein,
The IC apparatus includes：
Charge pump circuit portion, be the driving voltage for generating the anode charge-pump type step-up circuit among at least except charge pump electricity Circuit portion beyond container；And
Multiple capacitor terminals, it is connected in each of the outside of the fluorescent display tube via the predetermined lead terminal The charge pump capacitor and the charge pump circuit portion,
The multiple capacitor terminal is arranged at relative with the anode pattern portion among the end edge of the IC apparatus End edge side.
8. fluorescent display tube according to claim 7, wherein,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side,
The IC apparatus has for applying to the anode with the multiple capacitor terminal identical end edge side The drive terminal of the driving voltage,
The multiple capacitor terminal is arranged at than the drive terminal closer to the position of the lead terminal aligning section.
9. fluorescent display tube according to claim 8, wherein,
Connect among the capacitor distribution of the capacitor lead wire terminal and the capacitor terminal at least near the drive The capacitor distribution of the capacitor terminal connection of moved end, between the IC apparatus and the anode pattern portion Boundary space towards the lead terminal aligning section direction extend.
10. the fluorescent display tube according to any one of claim 7 to 9, wherein,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, with the defeated of the input voltage for being used to input to the charge pump circuit portion from the outside input of the fluorescent display tube Enter voltage lead terminal,
In the IC apparatus with the multiple capacitor terminal identical end edge side than the multiple capacitor terminal Have closer to the side of the lead terminal aligning section and be used to input the input via the input voltage lead terminal The input voltage terminal of voltage.
11. the fluorescent display tube according to any one of claim 7 to 9, wherein,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and with the data signal lead for the data signal for being used for display control from the outside input of the fluorescent display tube Terminal,
The end edge side of the opposite side of the end edge relative with the anode pattern portion, which has, in the IC apparatus is used to input Via the data signal terminal of the data signal of the data signal lead terminal.
12. fluorescent display tube according to claim 11, wherein,
The width ratio that the capacitor terminal is connected with each capacitor distribution of the capacitor lead wire terminal connects the numeral The width of the data signal distribution of signal terminal and the data signal lead terminal is thick.
13. fluorescent display tube according to claim 10, wherein,
Connect described in the input voltage terminal connects with the width ratio of the input voltage distribution of the input voltage lead terminal The width of each capacitor distribution of capacitor terminal and the capacitor lead wire terminal is thick.
14. the fluorescent display tube according to any one of claim 7 to 9, wherein,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and with the filament lead terminal and work of the driving voltage of filament described in the outside input from the fluorescent display tube For the ground lead terminal of ground terminal,
In the lead terminal aligning section,
The filament lead terminal is located furthest from the anode pattern portion on the basis of the position of the IC apparatus The position of opposite side, the ground lead terminal arrangement fill among the capacitor lead wire terminal closest to the integrated circuit Put closest to capacitor lead wire terminal with closest to the IC apparatus the filament lead terminal i.e. closest to silk Between the lead terminal of pole.
15. fluorescent display tube according to claim 14, wherein,
In the lead terminal aligning section, it is described closest to capacitor lead wire terminal and it is described closest to filament lead terminal it Between be arranged with the ground lead terminal and input voltage lead terminal, the input voltage lead terminal is used for from the fluorescence The input voltage that the outside input of display tube inputs to the charge pump circuit portion.
16. the fluorescent display tube according to any one of claim 7 to 9, the IC apparatus includes：
Logic voltage terminal, it is logic that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion, Voltage；And
Output voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and comprising the lead terminal being connected with the logic voltage terminal i.e. logic voltage lead terminal and with it is described The lead terminal of output voltage terminal connection is output voltage lead terminal,
In the IC apparatus, the logic voltage terminal and the output voltage terminal are arranged at and the anode figure The end edge side of the opposite side of the relative end edge in case portion,
The logic voltage distribution of the logic voltage terminal and the logic voltage lead terminal is connected via the lead terminal Space among the side of the long side direction of aligning section and the display tube substrate between a line arranges,
The output voltage distribution of the output voltage terminal and the output voltage lead terminal is connected via the anode pattern Boundary space between portion and the IC apparatus arranges.
17. the fluorescent display tube according to any one of claim 7 to 9, the IC apparatus includes：
Logic voltage terminal, it is logic that it, which inputs the supply voltage of the logic circuit for the display control for performing the anode pattern portion, Voltage；And
Output voltage terminal, it supplies the output voltage of the charge-pump type step-up circuit,
The difference of length in length and breadth of the display tube substrate, the IC apparatus and the anode pattern portion are arranged in described On the long side direction of display tube substrate,
On the display tube substrate, the i.e. capacitor lead wire terminal of the lead terminal being connected with the charge pump capacitor is set Each charge pump capacitor is placed in, also, formed with the capacitor lead wire terminal and others on the display tube substrate The lead terminal aligning section that the lead terminal arranges along the long side direction together, the lead terminal aligning section is positioned at described One among the side of the long side direction of IC apparatus and the aligning part in the anode pattern portion and the display tube substrate Between side, and comprising the lead terminal being connected with the logic voltage terminal i.e. logic voltage lead terminal and with it is described The lead terminal of output voltage terminal connection is output voltage lead terminal,
The logic voltage terminal is arranged at the end edge side of the opposite side of the end edge relative with the anode pattern portion, the output Voltage terminal is arranged at the end edge side relative with the anode pattern portion.
18. fluorescent display tube according to claim 17, wherein,
Possess in the IC apparatus with the multiple capacitor terminal identical end edge side for applying to the anode The drive terminal of the driving voltage,
The output voltage terminal is on the short side direction of the display tube substrate positioned at the multiple capacitor terminal and described Between drive terminal.
19. fluorescent display tube according to claim 17, wherein,
The output voltage distribution for connecting the output voltage terminal and the output voltage lead terminal fills in the integrated circuit The boundary space put between the anode pattern portion extends towards the direction of the lead terminal aligning section.
CN201710837738.7A 2016-09-16 2017-09-13 IC apparatus and fluorescent display tube Pending CN107833553A (en)

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