CN210394176U - Preparation device of thin electronic glass substrate - Google Patents
Preparation device of thin electronic glass substrate Download PDFInfo
- Publication number
- CN210394176U CN210394176U CN201921381218.0U CN201921381218U CN210394176U CN 210394176 U CN210394176 U CN 210394176U CN 201921381218 U CN201921381218 U CN 201921381218U CN 210394176 U CN210394176 U CN 210394176U
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- Prior art keywords
- thinning
- tank
- glass substrate
- pipe
- liquid
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- 239000011521 glass Substances 0.000 title claims abstract description 75
- 239000000758 substrate Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 107
- 238000003860 storage Methods 0.000 claims abstract description 34
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 230000005587 bubbling Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 6
- 238000000108 ultra-filtration Methods 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 18
- 239000000126 substance Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 2
- 235000010489 acacia gum Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 241000978776 Senegalia senegal Species 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a preparation device of a thin electronic glass substrate, which comprises a storage tank, wherein the bottom end of the storage tank is connected with a thinning groove through a liquid supply pipe, the liquid supply pipe is connected with the top end of the thinning groove, and the liquid supply pipe is provided with a liquid supply pump; the upper end of the storage tank is connected with a recovery material preparing tank through a communicating pipe; the thinning groove is also provided with a bubbling pipe communicated with the bottom of the thinning groove, and the bubbling pipe is provided with a bubbling device; the bottom end of the inner side of the thinning groove is also provided with a throwing assembly which can do longitudinal reciprocating motion, and the upper end of the throwing assembly is fixed with a thinning basket for loading glass; the upper end of the recovery material preparing tank is provided with a feed inlet, and a stirring assembly is arranged in the recovery material preparing tank. The preparation process is simple, the cost is low, the damage to operators is small, the performance is stable, and the prepared flexible sheet electronic glass substrate cannot have the problems of scratches and the like.
Description
Technical Field
The utility model belongs to the technical field of the glass preparation, a preparation facilities of thin slice electron glass substrate is related to.
Background
At present, flexible glass is gradually used for display screens of electronic products, the definition of the flexible glass is high, however, the glass belongs to a brittle material, and the flexibility of the glass is closely related to the thickness of the glass and the defects of the glass. Along with the continuous thinning of the glass thickness, the bending deformation amount of the glass becomes larger gradually, the bending strength is increased, and the preparation of the flexible glass with high strength is facilitated. Therefore, the preparation of the flexible glass is premised on that the thickness of the glass is thin enough and the surface quality is high, and the existing preparation method of the flexible glass mainly comprises a primary forming method and a secondary forming method, wherein the primary forming method mainly comprises an overflow down-draw method and a float method; the secondary forming method mainly comprises a chemical thinning method and a secondary drawing method. The overflow downdraw process has a small throughput and a width limited by the size of the overflow trough. The surface of the glass prepared by the float method is not smooth, and the yield of the flexible glass is influenced; the thin electronic glass prepared by the device of the flexible glass prepared by the chemical thinning method at present has the main defects that scratches or particles are formed on the surface of a glass substrate, so that high-strength flexible glass is not easy to prepare, and the secondary drawing method is difficult to operate and has small production capacity.
The glass substrate processed by the traditional chemical thinning method has serious saw teeth at the edge of an etched groove and has water ripple phenomenon in the groove. Patent CN102476912A describes the use of an anti-glare liquid for glass, the components of which are gum arabic, hydrofluoric acid, hydrochloric acid, ammonium bifluoride and polyethylene glycol, through which the glass substrate is treated. The Arabic gum powder in the raw materials is expensive, the cost is high, in addition, as the hydrochloric acid is easy to volatilize and has strong corrosion capability, the harm to operators is large in the processing process, the thinning liquid after being treated by the glass can be used as the thinning liquid again after being led out for post treatment, and the thinning liquid is not easy to recycle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in providing a preparation facilities of thin slice electronic glass base plate that preparation simple process, with low costs, harm little and stable performance to operating personnel, the gentle thin slice electronic glass base plate that its preparation obtained can not appear mar scheduling problem.
The utility model discloses a realize through following technical scheme:
a preparation device of a thin electronic glass substrate comprises a storage tank, wherein the bottom end of the storage tank is connected with a thinning groove through a liquid supply pipe, the liquid supply pipe is connected with the top end of the thinning groove, and a liquid supply pump is arranged on the liquid supply pipe; the upper end of the storage tank is connected with a recovery material preparing tank through a communicating pipe;
the thinning groove is also provided with a bubbling pipe communicated with the bottom of the thinning groove, and the bubbling pipe is provided with a bubbling device; the bottom end of the inner side of the thinning groove is also provided with a throwing assembly which can do longitudinal reciprocating motion, and the upper end of the throwing assembly is fixed with a thinning basket for loading glass; the upper end of the recovery material preparing tank is provided with a feed inlet, and a stirring assembly is arranged in the recovery material preparing tank.
Further, the thinning groove bottom end is connected with the upper end of the recovery stock tank through a circulation liquid discharge pipe, a circulation liquid discharge pump is arranged on the circulation liquid discharge pipe, and a filtering assembly located at the outlet end of the circulation liquid discharge pipe is arranged on the recovery stock tank.
Furthermore, the upper end of the thinning groove is communicated with the storage tank through an overflow pipe.
Further, still be equipped with the access cover on retrieving the material preparing tank, the access cover is located filtering component directly over.
Furthermore, the filtering component comprises a net-shaped filtering cylinder, and an ultrafiltration membrane consisting of a PTFE (polytetrafluoroethylene) filtering membrane and a flexible ceramic membrane core is arranged on the inner side of the filtering cylinder.
Further, the stirring assembly comprises a stirring rod which is arranged in the recovery material preparation tank and driven by a motor, and stirring blades are arranged on the stirring rod.
Further, the throwing assembly comprises a fixing plate arranged at the lower end of the thinning basket, and the lower end of the fixing plate is connected with an air cylinder.
Furthermore, a liquid flowmeter and a gas flowmeter are respectively arranged on the liquid supply pipe and the bubbling pipe.
Furthermore, a heating component and a temperature sensor are arranged in the storage tank, and a liquid level meter is arranged outside the storage tank.
Further, the heating assembly adopts a fluorine lining heating rod.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a pair of preparation facilities of thin slice electronic glass base plate, the attenuate liquid of preparation in retrieving the feed preparation jar is led into to the storage tank through communicating pipe in, attenuate liquid in the storage tank is led into to the attenuate inslot through the feed pipe under the effect of feed pump, then the glass that needs the attenuate processing is arranged in the attenuate basket and is moved the drive of subassembly and vertically reciprocating motion down, the material that the glass surface is corroded is in time peeled off from glass under the resistance effect of attenuate liquid, it is corroded and takes away the corrosion product in time to be convenient for make the glass surface unevenness bulge perishable part corroded at first, thereby make the glass surface of handling level and smooth; in addition, when the bubbling device acts, bubbles can form impulsive force on the surface of the glass in the process of moving upwards from the bottom end of the thinning groove, and further corroded substances on the surface of the glass are timely stripped from the glass under the action of a gas-liquid mixture, so that the thinning rate of the glass is accelerated, and simultaneously, the uneven and protruding corroded parts on the surface of the glass are firstly corroded and corrosion products are timely taken away, so that the surface of the treated glass is further more flat.
Furthermore, the bottom end of the thinning tank is connected with the upper end of a recovery stock tank through a circulating liquid discharge pipe, a circulating liquid discharge pump is arranged on the circulating liquid discharge pipe, a filter assembly positioned at the outlet end of the circulating liquid discharge pipe is arranged on the recovery stock tank, the flow rates of the circulating liquid discharge pump and a liquid supply pump are the same in the thinning liquid treatment process, the circulating liquid discharge pump is started, the thinning liquid subjected to thinning treatment is led into the recovery stock tank from the lower end of the thinning liquid through the circulating liquid discharge pipe, the thinning liquid flows into a storage tank after being filtered at the outlet end of the recovery stock tank, clean thinning liquid in the storage tank is led into the thinning tank through a liquid supply pump, circulating liquid changing of the thinning liquid in the thinning tank is formed, the thinning liquid in the main tank is ensured to be always in a clean state, thinning reaction can be fully performed, and online recycling of the thinning liquid is achieved.
Drawings
Fig. 1 is an overall configuration diagram of the present apparatus.
The device comprises a recovery preparation tank 1, a filtering component 11, an access cover 12, a motor 13, a stirring rod 14, a stirring blade 15, a charging port 16, a measuring cylinder 17, a storage tank 2, a temperature sensor 21, a fluorine-lined heating rod 22, a communicating pipe 23, a thinning tank 3, a throwing component 31, a thinning basket 32, a bubbling device 4, a bubbling pipe 41, a gas flowmeter 42, a liquid supply pump 5, a liquid supply pipe 51, a liquid flowmeter 52, a circulating liquid discharge pump 6, a circulating liquid discharge pipe 61, a base 7 and an overflow pipe 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a device for preparing a thin electronic glass substrate comprises a rectangular storage tank 2, the bottom end of the storage tank 2 is connected with a rectangular thinning tank 3 through a liquid supply pipe 51, the storage tank 2 and the thinning tank 3 are fixed on a base 7, the bottom ends of the storage tank 2 and the thinning tank 3 are consistent in height, the liquid supply pipe 51 is connected with the middle part of the storage tank 2, the liquid supply pipe 51 is connected with the top end of the thinning tank 3, a liquid supply pump 5 is arranged on the liquid supply pipe 51, and the thinning liquid temporarily stored in the storage tank is input into the thinning tank 3 under the action of the liquid supply pump 5; in addition, a heating assembly and a temperature sensor 21 are arranged in the storage tank 2, the specific heating assembly is a fluorine-lined heating rod 22, the temperature of the thinning liquid needs to be monitored because the thinning liquid needs to be carried out at a certain temperature in the process of thinning the glass, when the temperature of the thinning liquid is lower than the required temperature, the fluorine-lined heating rod 22 works to heat the thinning liquid, and the heating is stopped when the required temperature is reached.
In addition, as shown in fig. 1, the upper end of the storage tank 2 is connected with a recovery stock tank 1 through a communicating pipe 23; retrieve 1 upper end of material preparing tank and set up charge door 16, charge door 16 department is equipped with graduated flask 17, be equipped with the stirring subassembly in retrieving material preparing tank 1, the leading-in to retrieving material preparing tank 1 of pretreated attenuate liquid from charge door 16 ration, stir the processing to the pretreated attenuate liquid simultaneously, the later stage attenuate liquid is discharged from attenuate groove 3 and is leading-in to retrieve material preparing tank 1 and handle, leading-in to storage tank 2 in, and then leading-in to attenuate groove 3 in again, realize the online recovery cyclic utilization to the attenuate liquid.
As shown in fig. 1, the stirring assembly includes a stirring rod 14 disposed in the recovery material tank 1 and driven by a motor 13, and a stirring blade 15 is disposed on the stirring rod 14. In addition, the communicating pipe 23 is provided with a valve, the bottom height of the recovery material tank 1 is higher than the top height of the storage tank 2, and the thinning liquid can flow into the storage tank 2 from the recovery material tank 1 without extra power by opening the valve. A liquid level meter is provided outside the storage tank 2, and the liquid level of the thin liquid flowing into the storage tank 2 from the recovery stock tank 1 can be observed.
As shown in fig. 1, the thinning tank 3 is further provided with a bubbling tube 41 communicated with the bottom of the thinning tank 3, and the bubbling tube 41 is provided with a bubbling device 4; the bubbling device 4 generates filtered air, then the filtered air is discharged through a plurality of air outlet holes formed in the bottom end of the bubbling pipe 41 and stimulates a large number of bubbles to be blown up from the lower part of the thinning groove 3, a gas flowmeter 42 arranged on the bubbling pipe 41 is observed, the gas discharge capacity of the bubbling device 4 is adjusted, and the discharge capacity meets the operation requirement; in addition, the bottom end of the inner side of the thinning groove 3 is also provided with a throwing assembly 31 which reciprocates longitudinally, and the upper end of the throwing assembly 31 is fixed with a thinning basket 32 for loading glass; specifically, throwing subassembly 31 is including establishing the fixed plate at attenuate basket 32 lower extreme, and the glass of treating the attenuate treatment is placed in attenuate basket 32, and attenuate basket 32 is fixed in the fixed plate upper end, and the fixed plate lower extreme is connected with the cylinder. Under the action of the air cylinder, the thinning basket 32 drives the glass to do longitudinal throwing motion at the speed of 10mm/s, the throwing stroke is 50mm, the glass and the thinning liquid are fully reacted, corroded substances on the surface of the glass are timely stripped from the glass under the resistance action of the thinning liquid, the part, which is not flat, protrudes and is easy to corrode, of the surface of the glass is corroded firstly, corrosion products are timely taken away, and therefore the surface of the treated glass is smooth; in addition, when the bubbling device 4 acts, bubbles can form impulsive force on the surface of the glass in the process of moving upwards from the bottom end of the thinning tank 3, and further corroded substances on the surface of the glass are timely stripped from the glass under the action of a gas-liquid mixture, so that the thinning rate of the glass is accelerated, and simultaneously, the uneven and protruded corroded parts on the surface of the glass are firstly corroded and corrosion products are timely taken away, so that the surface of the treated glass is further more flat.
Further, as shown in FIG. 1, the upper end of the thinning tank 3 communicates with the reservoir 2 through an overflow pipe 8. When the thinning liquid in the storage tank 2 introduced into the thinning tank 3 by the liquid supply pump 5 reaches a certain height, the thinning liquid flows back into the storage tank 2 through the overflow pipe 8, and overflow of the thinning liquid in the thinning tank 3 is avoided.
Further, as shown in fig. 1, the bottom end of the thinning tank 3 is connected to the upper end of the recovery stock tank 1 through a circulation drain pipe 61, a circulation drain pump 6 is provided on the circulation drain pipe 61, and the recovery stock tank 1 is provided with a filter assembly 11 at the outlet end of the circulation drain pipe 61. During the process of thinning glass by the thinning liquid, a large amount of solid slag is generated to be suspended in the thinning liquid, and the solid slag can influence the thinning treatment of the thinning liquid on the glass and influence the treatment efficiency; at present, the common method is to discharge and replace the thinning liquid, and the thinning liquid can not be fully utilized; in the device, in the process of thinning liquid treatment, the flow rate of the liquid discharge pump 6 and the flow rate of the liquid supply pump 5 are adjusted and are the same while the numerical value of a liquid flow meter 52 arranged on the liquid supply pump 5 is observed, the thinning liquid of thinned glass is guided into the recovery stock tank 1 from the lower end of the thinning liquid through a circulating liquid discharge pipe 61, the thinning liquid is filtered and flows into the storage tank 2 at the outlet end of the recovery stock tank 1, the clean thinning liquid treated in the storage tank 2 is guided into the thinning tank 3 through the liquid supply pump 5, circulating liquid change of the thinning liquid in the thinning tank 3 is formed, the thinning liquid in a main tank is ensured to be always in a clean state, thinning reaction can be fully carried out, and online recycling of the thinning liquid is achieved.
Wherein, the liquid discharge pump 6 and the liquid supply pump 5 can respectively control the flow rate through a frequency converter and a valve piece arranged on the liquid discharge pump and the liquid supply pump.
Specifically, the filter assembly 11 includes a mesh filter cartridge having both ends not opened, and an ultrafiltration membrane composed of a PTFE filter membrane and a flexible ceramic membrane core is disposed on the inner side of the filter cartridge. The thinning liquid flowing out of the circulating liquid discharge pipe 61 flows into the filter cylinder, is filtered by the ultrafiltration membrane and then flows into the recovery stock tank 1, and the ultrafiltration membrane can filter fine solid particles in the thinning liquid, so that the purity of the thinning liquid led into the recovery stock tank 1 is ensured; in addition, as shown in fig. 1, an access cover 12 is further provided on the recovery stock tank 1, and the access cover 12 is positioned right above the filter assembly 11; which can directly open the access cover 12 to enable replacement or servicing of the filter assembly 11.
Claims (10)
1. The preparation device of the thin electronic glass substrate is characterized by comprising a storage tank (2), wherein the bottom end of the storage tank (2) is connected with a thinning groove (3) through a liquid supply pipe (51), the liquid supply pipe (51) is connected with the top end of the thinning groove (3), and a liquid supply pump (5) is arranged on the liquid supply pipe (51); the upper end of the storage tank (2) is connected with a recovery material preparing tank (1) through a communicating pipe (23);
the thinning groove (3) is also provided with a bubbling pipe (41) communicated with the bottom of the thinning groove (3), and the bubbling pipe (41) is provided with a bubbling device (4); the bottom end of the inner side of the thinning groove (3) is also provided with a throwing assembly (31) which moves in a longitudinal reciprocating manner, and the upper end of the throwing assembly (31) is fixed with a thinning basket (32) for loading glass; the upper end of the recovery material preparing tank (1) is provided with a feed inlet (16), and a stirring assembly is arranged in the recovery material preparing tank (1).
2. The manufacturing apparatus for a thin sheet electronic glass substrate as claimed in claim 1, wherein the bottom end of said thinning tank (3) is connected to the upper end of the recycling stock tank (1) through a circulation drain pipe (61), a circulation drain pump (6) is provided on the circulation drain pipe (61), and a filter assembly (11) is provided at the outlet end of the circulation drain pipe (61) in the recycling stock tank (1).
3. The apparatus for manufacturing a flake electronic glass substrate as claimed in claim 2, wherein the upper end of the thinning tank (3) is communicated with the reservoir (2) through an overflow pipe (8).
4. The manufacturing device of a thin electronic glass substrate as claimed in claim 2, wherein the recycling stock tank (1) is further provided with an access cover (12), and the access cover (12) is located right above the filtering component (11).
5. The manufacturing device of a thin slice electronic glass substrate as claimed in claim 4, wherein the filter assembly (11) comprises a mesh filter cartridge, and the inside of the filter cartridge is provided with an ultrafiltration membrane composed of a PTFE filter membrane and a flexible ceramic membrane core.
6. The manufacturing device of a thin electronic glass substrate as claimed in claim 1, wherein the stirring assembly comprises a stirring rod (14) disposed in the recycling stock tank (1) and driven by a motor (13), and stirring blades (15) are disposed on the stirring rod (14).
7. The device for preparing the thin slice electronic glass substrate as claimed in claim 1, wherein the throwing assembly (31) comprises a fixing plate arranged at the lower end of the thinning basket (32), and the lower end of the fixing plate is connected with a cylinder.
8. The manufacturing apparatus of a thin electronic glass substrate as claimed in claim 1, wherein the liquid supply tube (51) and the bubble tube (41) are provided with a liquid flow meter (52) and a gas flow meter (42), respectively.
9. The apparatus for preparing a thin electronic glass substrate as claimed in claim 1, wherein a heating element and a temperature sensor (21) are further disposed in the reservoir (2), and a liquid level meter is disposed outside the reservoir (2).
10. The apparatus for manufacturing a thin sheet electronic glass substrate as claimed in claim 9, wherein the heating assembly employs a fluorine-lined heating rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381218.0U CN210394176U (en) | 2019-08-23 | 2019-08-23 | Preparation device of thin electronic glass substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381218.0U CN210394176U (en) | 2019-08-23 | 2019-08-23 | Preparation device of thin electronic glass substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210394176U true CN210394176U (en) | 2020-04-24 |
Family
ID=70338116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921381218.0U Withdrawn - After Issue CN210394176U (en) | 2019-08-23 | 2019-08-23 | Preparation device of thin electronic glass substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210394176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357445A (en) * | 2019-08-23 | 2019-10-22 | 泰兴美视智能光电有限公司 | A kind of preparation facilities of flexible electronic glass substrate and preparation method based on it |
-
2019
- 2019-08-23 CN CN201921381218.0U patent/CN210394176U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357445A (en) * | 2019-08-23 | 2019-10-22 | 泰兴美视智能光电有限公司 | A kind of preparation facilities of flexible electronic glass substrate and preparation method based on it |
| CN110357445B (en) * | 2019-08-23 | 2024-02-09 | 泰兴美视智能光电有限公司 | Preparation device of flexible electronic glass substrate and preparation method based on preparation device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200424 Effective date of abandoning: 20240209 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200424 Effective date of abandoning: 20240209 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |