CN112635274A - White light nixie tube display device and packaging process thereof - Google Patents
White light nixie tube display device and packaging process thereof Download PDFInfo
- Publication number
- CN112635274A CN112635274A CN202011525799.8A CN202011525799A CN112635274A CN 112635274 A CN112635274 A CN 112635274A CN 202011525799 A CN202011525799 A CN 202011525799A CN 112635274 A CN112635274 A CN 112635274A
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- Prior art keywords
- nixie tube
- packaging
- display device
- tube display
- air
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- 238000012858 packaging process Methods 0.000 title claims abstract description 8
- 239000000428 dust Substances 0.000 claims abstract description 52
- 238000004806 packaging method and process Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000012958 reprocessing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/003—Auxiliary devices for installing or removing discharge tubes or lamps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vacuum Packaging (AREA)
Abstract
The invention provides a white light nixie tube display device and a packaging process thereof, and relates to the field of nixie tube production and processing. According to the invention, after the nixie tube display device is dedusted by the dedusting device, the nixie tube display device is loaded into the packaging belt, the bag opening of the packaging belt is limited in the heating mechanism by the compression roller, the packaging cover is rotated and pressed by the hinge, the bag opening of the packaging belt is pressed by the pressing block in contact with the heating mechanism, the packaging cavity is kept sealed, the interior of the machine body is controlled by the control panel, the vacuum pump starts to work to generate negative pressure, air in the vacuum cavity is pumped out through the exhaust hole to keep vacuum, the heating mechanism is used for heating, the bag opening of the packaging belt is fused, the nixie tube display device is vacuum-packaged, and the nixie tube display device can not adsorb dust and keep clean through dedusting and vacuum packaging, so that the.
Description
Technical Field
The invention relates to the field of nixie tube production and processing, in particular to a white light nixie tube display device and a packaging process thereof.
Background
A nixie tube, also known as a glow tube, is an electronic device that can display numeric and other information. The glass tube includes an anode made of a wire mesh and a plurality of cathodes. Most nixie tube cathodes are shaped as numbers. The tube is filled with a low pressure gas, typically neon plus some mercury and/or argon for the most part. When a cathode is charged, the nixie tube emits colored light, which is generally orange or green depending on the gas in the tube.
In the processing process of the white light nixie tube, a display device of the white light nixie tube is easy to be dirty and polluted, so that the display light color is changed in use, the use of the white light nixie tube is influenced, the qualification rate of the white light nixie tube is reduced, the cost is increased, and the steps of decontamination and vacuum sealing are required to be added in the processing of the white light nixie tube.
Disclosure of Invention
The present invention aims to provide a white light nixie tube display device and a packaging process thereof, so as to solve the technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme: a control panel is fixed in the middle of the left end of the machine body, a packaging cavity is arranged inside the upper end of the machine body, heating mechanisms are fixed to the front end and the rear end inside the packaging cavity, compression rollers are fixed to the front side and the rear side, located on the front side and the rear side of the packaging cavity, of the heating mechanisms, a packaging cover is fixed to the right side, located on the upper end of the machine body, of the packaging cavity, a dust removal device is fixed to the upper side of the front end of the machine body, and a nixie tube display device is placed inside the dust removal device.
Preferably, dust collector includes dust removal box, jet-propelled assembly, venthole and apron, the lower extreme of dust removal box is fixed with jet-propelled assembly, the upper end of jet-propelled assembly is located the interior bottom end of dust removal box and evenly is provided with the venthole, the upper end left side department of dust removal box has the apron through hinged joint.
Preferably, a vacuum pump is arranged inside the machine body, an air exhaust hole is formed in the inner right side wall of the packaging cavity, and the air exhaust hole is connected with the vacuum pump through a pipeline.
Preferably, the front side and the rear side of the lower end of the packaging cover are provided with pressing blocks, and the two pressing blocks and the two heating mechanisms are located on the same vertical central line.
Preferably, the number of the press rollers is two, and the two press rollers are positioned above the opposite end faces of the two heating mechanisms.
Preferably, the air injection assembly is connected with an external air pump device through an air conveying pipe, and an air cavity is arranged in the air injection assembly.
Preferably, the air outlet holes are arranged in a plurality and connected with an air cavity in the air injection assembly, and small filtering holes are uniformly formed in the end faces of the left front end and the right front end of the dust removal box.
Preferably, the PCB is subjected to die bonding: adjusting a die bonding fixture, placing the PCB into a die bonding mold, and setting die bonding parameters and die bonding positions for die bonding; routing: after the completion, a transmission belt of the PCB placed in a die bonder is transmitted to a wire bonder, a metal wire clamping needle clamps the metal wire, the metal wire is ignited under the action of oxygen to burn an end point of the metal wire, the end point is burned into a ball shape, the ball-shaped end point is welded on a wafer by the clamping needle, the metal wire is pulled into an arc-shaped structure by the clamping needle through an arc-shaped moving position, the clamping needle heats, burns and is welded on a circuit board by the other end of the arc-shaped structure, and the clamping needle stretches upwards to tear off the tail part of the metal wire; detecting the PCB equipment: the method comprises the following steps of conveying a circuit board and a wafer into a circuit board detection device through a conveyor belt, detecting optical performance of the circuit board, respectively detecting and circulating qualified products to the next process, removing unqualified products, manually detecting the circuit board, manually rechecking unqualified semi-finished products, and performing rework reprocessing, wherein the items of manual rechecking include whether the electric conduction is normal or not, whether electric leakage exists or not, and directly scrapping the semi-finished products which are not caused by the reasons; packaging and gluing: selecting resin glue suitable for a nixie tube, placing the resin glue in a vacuum box, discharging air in the resin glue by using an air suction pump, placing the resin glue without air bubbles on a packaging machine, connecting the resin glue to a pipeline on a glue filling nozzle, filling glue into a mold cavity on a mold through a glue filling module, and inserting a circuit board and a wafer into the mold cavity filled with the glue; baking: placing the nixie tube mould on a baking conveyor belt, and enabling the nixie tube mould to enter a first baking box through rotation of a rotating shaft for baking and drying; and (3) secondary detection: placing the nixie tube in the detection equipment again for secondary optical performance detection, detecting process and parameters, and discarding the nixie tube which is unqualified in detection; dedusting and vacuum packaging of the nixie tube: and placing the qualified nixie tubes into a dust removal device, performing surface dust removal through high-pressure airflow, and then loading the dust-removed nixie tubes into a packaging tape for vacuum packaging.
The invention has the beneficial effects that:
1. according to the invention, after the nixie tube display device is dedusted by the dedusting device, the nixie tube display device is loaded into the packaging belt, the bag opening of the packaging belt is limited in the heating mechanism by the compression roller, the packaging cover is rotated and pressed by the hinge, the bag opening of the packaging belt is pressed by the pressing block in contact with the heating mechanism, the packaging cavity is kept sealed, the interior of the machine body is controlled by the control panel, the vacuum pump starts to work to generate negative pressure, air in the vacuum cavity is pumped out through the exhaust hole to keep vacuum, the heating mechanism is used for heating, the bag opening of the packaging belt is fused, the nixie tube display device is vacuum-packaged, and the nixie tube display device can not adsorb dust and keep clean through dedusting and vacuum packaging, so that the.
2. In the invention, the nixie tube display device is placed in the dust removal box, the cover plate and the dust removal box are closed, the air injection assembly is connected with the air pump device to start working, the air pump conveys high-pressure air flow into an air cavity of the air injection assembly through the conveying pipe, a plurality of air outlet holes at the bottom end of the dust removal box spray out the air flow, and the sprayed air flow brings the dust belt on the surface of the nixie tube display device out along small holes on the end faces of the left front end and the right front end of the dust removal box, so that the nixie tube display device is kept clean.
Drawings
FIG. 1 is a schematic perspective view of a dedusting and packaging apparatus for a CRT display device according to the present invention;
FIG. 2 is a schematic perspective view of a dust removing device for a CRT display according to the present invention;
FIG. 3 is a schematic view of a flow structure of a packaging process for a white-light nixie tube display device according to the present invention;
reference numerals: 1. a packaging cavity; 2. a nixie tube display device; 3. a dust removal device; 4. a body; 5. a control panel; 6. a heating mechanism; 7. a compression roller; 8. a package cover; 31. a dust removal box; 32. a gas injection assembly; 33. an air outlet; 34. and (7) a cover plate.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a white light nixie tube display device, including organism 4, the left end middle part of organism 4 is fixed with control panel 5, the inside packaging chamber 1 that is provided with in upper end of organism 4, the inside front and back end of packaging chamber 1 is fixed with heating mechanism 6, the top that heating mechanism 6 is located the front and back side of packaging chamber 1 is fixed with compression roller 7, the upper end of packaging chamber 1 is located the upper end right side department of organism 4, be fixed with encapsulation lid 8 through the hinge, the front end upside of organism 4 is fixed with dust collector 3, nixie tube display device 2 has been placed to dust collector 3's inside.
When the dust removal device is used, the nixie tube display part 2 is loaded into an encapsulation belt after dust removal is completed through the dust removal device 3, the bag opening of the encapsulation belt is limited in the heating mechanism 6 through the compression roller 7, the encapsulation cover 8 is rotated and pressed downwards through the hinge, the bag opening of the encapsulation belt is pressed by the pressing block in contact with the heating mechanism 6, the encapsulation cavity 1 is kept sealed, the interior of the machine body 4 is controlled through the control panel 5, the vacuum pump starts to work to generate negative pressure, air in the vacuum cavity is pumped out through the air suction hole to keep vacuum, then the heating mechanism 6 is used for heating, the bag opening of the encapsulation belt is fused, the nixie tube display part 2 is subjected to vacuum encapsulation, dust cannot be adsorbed by the nixie tube display part 2, the nixie tube display part is kept clean, normal use.
Example 2
As shown in fig. 2, a white light nixie tube display device, a dust removing device 3 includes a dust removing box 31, an air injection assembly 32, air outlet holes 33 and a cover plate 34, the air injection assembly 32 is fixed at the lower end of the dust removing box 31, the air outlet holes 33 are uniformly arranged at the upper end of the air injection assembly 32, which is located at the inner bottom end of the dust removing box 31, and the cover plate 34 is connected to the left side of the upper end of the dust removing box 31 through a hinge.
When the device is used, the nixie tube display device 2 is placed into the dust removal box 31, the cover plate 34 and the dust removal box 31 are closed, the air injection assembly 32 is connected with the air pump device to start working, the air pump conveys high-pressure air flow into an air cavity of the air injection assembly 32 through the conveying pipe, the air flow is injected through the air outlet holes 33 at the bottom end of the dust removal box 31, the injected air flow brings dust on the surface of the nixie tube display device 2 downwards and out along small holes in the end faces of the left end and the right end of the dust removal box 31, the nixie tube display device 2 is kept clean, and color difference cannot.
The working principle and the packaging process of the invention are as follows: as shown in fig. 3, the PCB is die-bonded: adjusting a die bonding fixture, placing the PCB into a die bonding mold, and setting die bonding parameters and die bonding positions for die bonding; routing: after the completion, a transmission belt of the PCB placed in a die bonder is transmitted to a wire bonder, a metal wire clamping needle clamps the metal wire, the metal wire is ignited under the action of oxygen to burn an end point of the metal wire, the end point is burned into a ball shape, the ball-shaped end point is welded on a wafer by the clamping needle, the metal wire is pulled into an arc-shaped structure by the clamping needle through an arc-shaped moving position, the clamping needle heats, burns and is welded on a circuit board by the other end of the arc-shaped structure, and the clamping needle stretches upwards to tear off the tail part of the metal wire; detecting the PCB equipment: the method comprises the following steps of conveying a circuit board and a wafer into a circuit board detection device through a conveyor belt, detecting optical performance of the circuit board, respectively detecting and circulating qualified products to the next process, removing unqualified products, manually detecting the circuit board, manually rechecking unqualified semi-finished products, and performing rework reprocessing, wherein the items of manual rechecking include whether the electric conduction is normal or not, whether electric leakage exists or not, and directly scrapping the semi-finished products which are not caused by the reasons; packaging and gluing: selecting resin glue suitable for a nixie tube, placing the resin glue in a vacuum box, discharging air in the resin glue by using an air suction pump, placing the resin glue without air bubbles on a packaging machine, connecting the resin glue to a pipeline on a glue filling nozzle, filling glue into a mold cavity on a mold through a glue filling module, and inserting a circuit board and a wafer into the mold cavity filled with the glue; baking: placing the nixie tube mould on a baking conveyor belt, and enabling the nixie tube mould to enter a first baking box through rotation of a rotating shaft for baking and drying; and (3) secondary detection: placing the nixie tube in the detection equipment again for secondary optical performance detection, detecting process and parameters, and discarding the nixie tube which is unqualified in detection; dedusting and vacuum packaging of the nixie tube: placing the nixie tube display device 2 into a dust removal box 31, closing a cover plate 34 and the dust removal box 31, connecting an air pump device with an air injection assembly 32 to start working, conveying high-pressure air flow into an air cavity of the air injection assembly 32 by an air pump through a conveying pipe, injecting air flow from a plurality of air outlet holes 33 at the bottom end of the dust removal box 31, discharging the dust on the surface of the nixie tube display device 2 by the injected air flow, taking the dust out along small holes on the end surfaces of the left and right front three ends of the dust removal box 31 to keep the nixie tube display device clean, placing the nixie tube display device 2 into an encapsulation belt after dust removal through a dust removal device 3, limiting the opening of the encapsulation belt in a heating mechanism 6 through a compression roller 7, rotating and pressing a packaging cover 8 through a hinge, pressing the opening of the encapsulation belt by using a pressing block to be in contact with the heating mechanism 6, and the air in the vacuum cavity is pumped out through the air exhaust hole to keep vacuum, and then the heating mechanism 6 is used for heating to fuse the packaging tape bag opening, so that the nixie tube display device 2 is packaged in vacuum.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A white light nixie tube display device comprises a machine body (4), and is characterized in that: the improved digital tube packaging machine is characterized in that a control panel (5) is fixed in the middle of the left end of the machine body (4), a packaging cavity (1) is arranged inside the upper end of the machine body (4), a heating mechanism (6) is fixed to the front end and the rear end of the inside of the packaging cavity (1), a compression roller (7) is fixed to the front side and the rear side of the packaging cavity (1) above the heating mechanism (6), the upper end of the packaging cavity (1) is located on the right side of the upper end of the machine body (4), a packaging cover (8) is fixed through a hinge, a dust removal device (3) is fixed to the upper side of the front end of the machine body (4), and a nixie tube display component (.
2. The white-light nixie tube display device according to claim 1, wherein: dust collector (3) are including dust removal box (31), jet-propelled assembly (32), venthole (33) and apron (34), the lower extreme of dust removal box (31) is fixed with jet-propelled assembly (32), the inner bottom end that the upper end of jet-propelled assembly (32) is located dust removal box (31) evenly is provided with venthole (33), the upper end left side department of dust removal box (31) has apron (34) through hinged joint.
3. The white-light nixie tube display device according to claim 1, wherein: the vacuum pump is arranged inside the machine body (4), the inner right side wall of the packaging cavity (1) is provided with an air exhaust hole, and the air exhaust hole is connected with the vacuum pump through a pipeline.
4. The white-light nixie tube display device according to claim 1, wherein: pressing blocks are arranged on the front side and the rear side of the lower end of the packaging cover (8), and the two pressing blocks and the two heating mechanisms (6) are located on the same vertical central line.
5. The white-light nixie tube display device according to claim 1, wherein: the two compression rollers (7) are arranged, and the two compression rollers (7) are located above the opposite end faces of the two heating mechanisms (6).
6. The white-light nixie tube display device of claim 2, wherein: the air injection assembly (32) is connected with an external air pump device through an air conveying pipe, and an air cavity is arranged in the air injection assembly (32).
7. The white-light nixie tube display device according to claim 2, wherein: the air outlet holes (33) are arranged in a plurality, the air outlet holes (33) are connected with an air cavity in the air injection assembly (32), and small filtering holes are uniformly formed in the end faces of the left front end and the right front end of the dedusting box (31).
8. The packaging process for a white light tube display device according to claim 2, wherein: die bonding of the PCB: adjusting a die bonding fixture, placing the PCB into a die bonding mold, and setting die bonding parameters and die bonding positions for die bonding; routing: after the completion, a transmission belt of the PCB placed in a die bonder is transmitted to a wire bonder, a metal wire clamping needle clamps the metal wire, the metal wire is ignited under the action of oxygen to burn an end point of the metal wire, the end point is burned into a ball shape, the ball-shaped end point is welded on a wafer by the clamping needle, the metal wire is pulled into an arc-shaped structure by the clamping needle through an arc-shaped moving position, the clamping needle heats, burns and is welded on a circuit board by the other end of the arc-shaped structure, and the clamping needle stretches upwards to tear off the tail part of the metal wire; detecting the PCB equipment: the method comprises the following steps of conveying a circuit board and a wafer into a circuit board detection device through a conveyor belt, detecting optical performance of the circuit board, respectively detecting and circulating qualified products to the next process, removing unqualified products, manually detecting the circuit board, manually rechecking unqualified semi-finished products, and performing rework reprocessing, wherein the items of manual rechecking include whether the electric conduction is normal or not, whether electric leakage exists or not, and directly scrapping the semi-finished products which are not caused by the reasons; packaging and gluing: selecting resin glue suitable for a nixie tube, placing the resin glue in a vacuum box, discharging air in the resin glue by using an air suction pump, placing the resin glue without air bubbles on a packaging machine, connecting the resin glue to a pipeline on a glue filling nozzle, filling glue into a mold cavity on a mold through a glue filling module, and inserting a circuit board and a wafer into the mold cavity filled with the glue; baking: placing the nixie tube mould on a baking conveyor belt, and enabling the nixie tube mould to enter a first baking box through rotation of a rotating shaft for baking and drying; and (3) secondary detection: placing the nixie tube in the detection equipment again for secondary optical performance detection, detecting process and parameters, and discarding the nixie tube which is unqualified in detection; dedusting and vacuum packaging of the nixie tube: and placing the qualified nixie tubes into a dust removal device (3), performing surface dust removal through high-pressure airflow, and then loading the dust-removed nixie tubes into a packaging belt for vacuum packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525799.8A CN112635274A (en) | 2020-12-22 | 2020-12-22 | White light nixie tube display device and packaging process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525799.8A CN112635274A (en) | 2020-12-22 | 2020-12-22 | White light nixie tube display device and packaging process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112635274A true CN112635274A (en) | 2021-04-09 |
Family
ID=75320640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011525799.8A Withdrawn CN112635274A (en) | 2020-12-22 | 2020-12-22 | White light nixie tube display device and packaging process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112635274A (en) |
-
2020
- 2020-12-22 CN CN202011525799.8A patent/CN112635274A/en not_active Withdrawn
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Application publication date: 20210409 |