CN114889308A - Barrier-free quantum dot film processing device and processing method thereof - Google Patents
Barrier-free quantum dot film processing device and processing method thereof Download PDFInfo
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- CN114889308A CN114889308A CN202210402081.2A CN202210402081A CN114889308A CN 114889308 A CN114889308 A CN 114889308A CN 202210402081 A CN202210402081 A CN 202210402081A CN 114889308 A CN114889308 A CN 114889308A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
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- B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
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- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a barrier-free quantum dot film processing device and a processing method thereof, and the barrier-free quantum dot film processing device comprises an operation box, wherein the top of the operation box is provided with an openable top cover, the inner bottom of the operation box is provided with a ventilation box, and the top of the ventilation box is provided with a coating mechanism for coating quantum dot glue solution between a lower isolation film and an upper isolation film; and a negative pressure mechanism capable of sucking air in the operation box is arranged in the ventilation box. According to the invention, air in the operation box is sucked out through the negative pressure mechanism, and the content of oxygen and water vapor in the operation box is reduced, so that the phenomenon that the oxygen and the water vapor damage the surfaces of quantum dots to further cause fluorescence quenching when quantum dot glue solution is coated can be prevented, then after coating is finished, conversion from low pressure to high pressure is finished through filling of inert gas, and irradiation of an ultraviolet lamp is matched, so that the curing effect is improved, and meanwhile, the isolation film and the quantum dot film are more precise.
Description
Technical Field
The invention relates to the technical field of quantum dot films, in particular to a barrier-free quantum dot film processing device and a barrier-free quantum dot film processing method.
Background
The quantum dot film is as a brand-new nano-material that has unique light characteristic, can be accurate high-efficient with high energy blue light conversion red and green light, and quantum dot can form the one deck film on the LED backlight of LCD display screen, shines with blue LED and just can send full-spectrum light, through carrying out meticulous regulation to being shaded, can promote the colour gamut performance by a wide margin, lets the color more vivid.
At present, when a quantum dot film is prepared, a quantum dot dispensing layer coating liquid prepared by mixing an adhesive, inorganic particles, a quantum dot concentrated solution and a photoinitiator is usually coated in two barrier films, but because the specific surface area of the particle size of a quantum dot is very large, oxygen and water vapor in air are easy to damage the surface of the quantum dot during coating, so that fluorescence quenching is caused.
Disclosure of Invention
The invention aims to provide a barrier-free quantum dot film processing device and a processing method thereof, wherein air in an operation box is sucked out through a negative pressure mechanism, the inside of a ventilation box is in a negative pressure state, and simultaneously the content of oxygen and water vapor in the ventilation box is reduced along with the suction of the negative pressure mechanism, so that the situation that the surfaces of quantum dots are damaged by the oxygen and the water vapor when quantum dot glue solution is coated and fluorescence quenching is caused can be prevented, the processed barrier-free quantum dot film is more stable in performance and longer in service life, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the non-barrier quantum dot film processing device comprises an operation box, wherein a top cover capable of being opened is installed at the top of the operation box, a ventilation box is installed at the inner bottom of the operation box, and a coating mechanism used for coating quantum dot glue solution between a downward isolation film and an upper isolation film is installed at the top of the ventilation box.
The inside of the air exchange box is provided with a negative pressure mechanism which can suck out air in the operation box, and when the air pressure in the operation box is reduced to a preset value, the trigger mechanism drives the coating mechanism to start coating.
Preferably, the negative pressure mechanism comprises two sliding boxes which are arranged on the inner wall of the air exchange box and can horizontally slide opposite or back to back, piston plates are vertically and slidably arranged on the inner walls of the two sliding boxes, swing rods are rotatably arranged at the bottoms of the two piston plates and the inner bottom of the air exchange box, when the two air exchanging boxes move back and forth, the piston plate is driven by the two swinging rods to slide downwards along the inner wall of the sliding box, a first air cavity is formed inside the sliding boxes on one side of the piston plate, which is far away from the swinging rod, the outer walls of the two sliding boxes are both connected with an air suction pipe which enables the first air cavity to be communicated with the inside of the operation box, and the air suction pipe is internally provided with a one-way valve which can enable air to flow into the first air cavity in a one-way manner, the outer walls of the two sliding boxes are respectively connected with an exhaust pipe which enables the first air cavity and the outside of the operation box to be communicated, and the exhaust pipe is internally provided with a one-way valve which enables air to flow out of the first air cavity in a one-way manner.
Preferably, a second air cavity is formed inside the ventilating box between the two sliding boxes, the volume of the second air cavity is larger than the sum of the two first air cavities, a second air pipe capable of enabling the air in the second air cavity to enter the operation box in a one-way mode is communicated with the outer wall of the ventilating box, a first air pipe capable of enabling the air to enter the second air cavity in a one-way mode is further communicated with the outer wall of the ventilating box, and one end, penetrating out of the operation box, of the first air pipe is connected with the inert gas storage box.
Preferably, the coating mechanism comprises two mounting frames fixed on the operation box and close to the upper inner wall, sliding blocks capable of sliding horizontally in a reciprocating manner are mounted on the inner walls of the two mounting frames, a middle plate is jointly fixed between the two sliding blocks, a coating head capable of coating is mounted at the bottom of the middle plate, an inductor is mounted on the outer wall of the middle plate, a holding table is mounted at the top of the ventilation box, a lower isolation film is arranged at the top of the holding table, when the sliding blocks move in a direction far away from the mounting shaft, the inductor detects that the lower isolation film can control the coating head to coat quantum dot glue solution, a mounting shaft is jointly rotatably mounted between the two sliding blocks, a mounting roller is fixed on the outer wall of the mounting shaft, the mounting roller comprises a semi-circular arc surface capable of adsorbing and fixing the upper isolation film, and when the sliding blocks move forwards and coat the quantum dot glue solution on the surface of the lower isolation film through the coating head, the mounting roller rotates and attaches the upper separator to the lower separator.
Preferably, the triggering mechanism comprises two cross rods, the side walls of the two sides of the air exchange box are provided with holes, the two cross rods are respectively slidably mounted in the two holes, the opposite ends of the two cross rods are respectively fixed on the opposite surfaces of the two sliding boxes, the inner walls of the two sides of the operating box are respectively fixed with sliding frames, a toothed plate is vertically and slidably mounted between the two sliding frames, the end, penetrating out of the air exchange box, of each of the two cross rods is rotatably mounted with a connecting rod, the end, far away from the cross rods, of each of the two connecting rods is rotatably mounted on the outer wall of the toothed plate, when the two cross rods move in opposite directions, the two cross rods can drive the coating mechanism to start coating through a triggering piece, when the toothed plate moves upwards to a specified position, the outer wall of the mounting shaft is fixed with a gear with the same radius as that of the mounting roller, and when the teeth of the gear are meshed with the teeth grooves of the toothed plate, the mounting shaft can be driven to rotate, and the tooth grooves of the toothed plates can enable the gear to rotate for half a turn.
Preferably, the trigger part comprises trigger switches mounted on the inner walls of the upper side and the lower side of the sliding frame, when the toothed plate contacts the trigger switch above, the slide block can be controlled to move forwards through an electric signal, and when the toothed plate contacts the trigger switch below, the slide block can be controlled to move backwards through an electric signal.
Preferably, the ultraviolet lamp is fixed on the outer wall of the mounting roller, which is far away from the semicircular arc surface, and is closed when the sliding block moves forwards and opened when the sliding block moves backwards.
Preferably, be provided with the damping between installation axle and the slider, just the gear is kept away from the outer wall of centre of a circle and is installed the balancing weight, works as when the tooth's socket of gear and pinion rack breaks away from, the balancing weight can make the semicircle cambered surface of installation roller keep up.
The use method of the processing device of the barrier-free quantum dot film comprises the following steps:
and S1, preparing quantum dot glue solution in proportion, arranging the lower isolating film on the containing platform, and adsorbing the upper isolating film on the semi-arc surface of the mounting roller.
S2, the two scavenging air boxes are driven to slide back to back by an external mechanism, the piston plate can slide downwards along with the scavenging air boxes while moving horizontally under the connecting action of the two swinging rods 20, the air in the operation box can be sucked in by the suction pipe when the space in the first air cavity is enlarged, the air pressure in the operation box is reduced, the purpose of reducing the oxygen and water vapor content in the operation box is achieved, and meanwhile, inert gas can be sucked in the second air cavity.
S3, the coating work, meanwhile, under the linkage effect of horizontal pole and connecting rod, the pinion rack also can the rebound, then after the pinion rack contacts the trigger switch of top, can be through signal of telecommunication control slider horizontal migration, then the slider drives installation axle and the installation roller and the gear of fixing on it and moves together, when the coating head begins the coating, the tooth of the gear tooth contacts the meshing with the tooth' S socket of pinion rack, then along with the continuation of slider removes, the gear can drive installation axle and installation roller and rotate, then the adsorbed last barrier film that goes up on the installation roller is attached under on the barrier film, simultaneously along with the rotation of installation roller, can cancel the adsorption to last barrier film gradually, make it can be attached above, accomplish the preparation of quantum dot membrane.
S4, after coating, the two air boxes are driven to slide relatively to reset by an external mechanism, the inert gas of the second air cavity can be filled into the operation box, so that the internal low pressure of the inert gas is changed into a high-pressure state, the toothed plate can also reset downwards under the connecting action of the cross rod and the connecting rod, after the toothed plate contacts the trigger switch below, the horizontal resetting movement of the sliding block can be controlled by an electric signal, at the moment, the gear and the installation roller are in a static state because the gear is not meshed with the toothed plate, the purple light lamp can be turned on and irradiates the quantum dot layer, and the photoinitiator in the quantum dot glue solution can change the received light energy from a ground state into an excited state and then decompose into free radicals under illumination, so that the polymerization reaction of the adhesive can be initiated, the solidification of the quantum dot film is accelerated, and the upper isolation film, the upper isolation film and the lower isolation film can be matched with the high-pressure environment in the operation box, The quantum dot film is more tightly attached to the lower isolating film, so that the phenomenon that the quantum dot film is not uniform and is layered with the isolating film is prevented, the quality of the quantum dot film after being formed is further improved, and the curing process of the quantum dot film is completed.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the air in the operation box is sucked out through the negative pressure mechanism through the matching of the structures, the ventilation box is in a negative pressure state, and meanwhile, the content of oxygen and water vapor in the ventilation box is reduced along with the suction of the negative pressure mechanism, so that the situation that when quantum dot glue liquid is coated, the oxygen and the water vapor damage the surfaces of the quantum dots to further cause fluorescence quenching can be prevented, the performance of the processed barrier-free quantum dot film is more stable, and the service life is longer.
Through the matching of the structures, after the coating is finished, the inert gas is filled into the operation box, the air pressure in the operation box is changed into a high-pressure state from a negative pressure, the inert gas cannot damage the surfaces of the quantum dots, and the high-pressure state can enable the upper isolation film, the quantum dot glue layer and the lower isolation film to be attached more tightly, so that the quality of the finally formed quantum dot film is improved.
Thirdly, through the matching among the structures, when the coating is finished, the coating mechanism can irradiate the quantum dot layer through the ultraviolet lamp while resetting, and as the photoinitiator in the quantum dot glue solution receives light energy under illumination and is changed from a ground state to an excited state and then decomposed into free radicals, the polymerization reaction of the adhesive can be initiated, so that the curing of the quantum dot film is accelerated, and the upper isolation film, the quantum dot film and the lower isolation film are more tightly jointed by matching with the high-pressure environment in the operation box, so that the phenomena of the unevenness of the quantum dot film and the layering between the quantum dot film and the isolation film are prevented, and the quality of the formed quantum dot film is further improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic right side view of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;
FIG. 5 is a schematic structural view of a state diagram of the sliding box of the present invention after moving;
FIG. 6 is a schematic perspective view of the present invention taken along section C-C of FIG. 5;
FIG. 7 is a partially enlarged perspective view of the mounting roller of the present invention;
FIG. 8 is a schematic view of the mounting roller in a bottom enlarged perspective view;
fig. 9 is a schematic structural view of a sliding frame in a sectional view.
In the figure: 1. an operation box; 2. a top cover; 3. installing a frame; 4. a slider; 5. installing a shaft; 6. a gear; 7. mounting a roller; 8. coating heads; 9. an inductor; 10. a containing table; 11. an upper isolation film; 12. a lower isolation film; 13. a toothed plate; 14. a sliding frame; 15. a connecting rod; 16. a ventilation box; 17. a cross bar; 18. a piston plate; 19. a slide box; 20. a swing lever; 21. a first air pipe; 22. an air intake duct; 23. an exhaust pipe; 24. a second air pipe; 25. a first air cavity; 26. a second air cavity; 27. a middle plate; 28. an ultraviolet lamp; 29. the switch is triggered.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, the first step is,
referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a there is not quantum dot membrane processingequipment that separates, includes control box 1, and openable top cap 2 is installed at the top of control box 1, and ventilation box 16 is installed to the interior bottom of control box 1, and the coating mechanism that is used for coating quantum dot glue solution between lower barrier film 12 and the last barrier film 11 is installed at the top of ventilation box 16.
The inside of the ventilation box 16 is provided with a negative pressure mechanism which can suck air out of the operation box 1, and when the air pressure in the operation box 1 is reduced to a preset value, the coating mechanism is driven by the trigger mechanism to start coating.
During processing, through the air suction of negative pressure mechanism in with control box 1, be in negative pressure state this moment in the ventilation box 16, simultaneously its inside oxygen and the content of steam can reduce along with the suction of negative pressure mechanism to when can preventing to coat the quantum dot glue solution, oxygen and steam produced destruction to the quantum dot surface, and then the fluorescence quenching that leads to, the non-resistant quantum dot membrane performance that makes processing out is more stable, and life is longer.
The second embodiment is further defined on the basis of the first embodiment, and provides an implementation mode of a negative pressure mechanism;
further, the negative pressure mechanism comprises two sliding boxes 19 which are arranged on the inner wall of the air exchange box 16 and can horizontally slide opposite to or away from each other, piston plates 18 are vertically slidably arranged on the inner walls of the two sliding boxes 19, swing rods 20 are rotatably arranged at the bottoms of the two piston plates 18 and the inner bottom of the air exchange box 16, when the two air exchange boxes 16 move opposite to each other, the piston plates 18 are driven by the two swing rods 20 to slide downwards along the inner walls of the sliding boxes 19, a first air cavity 25 is formed inside the sliding box 19 at the side, far away from the swing rods 20, of the piston plates 18, the outer walls of the two sliding boxes 19 are connected with an air suction pipe 22 which enables the first air cavity 25 to be communicated with the inside of the operation box 1, a one-way valve which enables air to flow into the first air cavity 25 in a one-way is arranged inside the air suction pipe 22, and exhaust pipes 23 which enable the first air cavity 25 to be communicated with the outside of the operation box 1 are connected with the outer walls of the two sliding boxes 19, and a check valve for allowing air to flow out of the first air chamber 25 in one direction is installed in the discharge pipe 23.
Before coating, drive two scavenging air boxes 16 through external mechanism and slide mutually oppositely, can control through modes such as cylinder or electric telescopic handle, when two scavenging air boxes 16 move mutually oppositely, under the connecting action of swinging arms 20, can make piston board 18 slide downwards along with scavenging air box 16 horizontal migration simultaneously, can refer to 3-5, the space grow in first air cavity 25 can be through breathing pipe 22 with the air suction in the control box 1 this moment, make the atmospheric pressure in the control box 1 step down, in order to reach the purpose that reduces oxygen and the steam content in the control box 1, then when atmospheric pressure in the control box 1 reduces the default, trigger mechanism drive coating mechanism begins to coat.
By the arrangement of the exhaust pipe 23, when the two air exchanging boxes 16 are reset after the coating mechanism is coated, the air stored in the first air chamber 25 is exhausted out of the operation box 1.
Therefore, the quantum dot film can be in a low-oxygen and relatively dry environment before processing and preparation, and the preparation of the quantum dot film and the processing quality of the quantum dot film are more favorably improved in the environment.
The third embodiment is further defined on the basis of the second embodiment;
furthermore, a second air cavity 26 is formed inside the ventilation box 16 between the two sliding boxes 19, the volume of the second air cavity 26 is larger than the sum of the two first air cavities 25, the outer wall of the ventilation box 16 is communicated with a second air pipe 24 which can enable the air in the second air cavity 26 to be led into the operation box 1 in a one-way mode, the outer wall of the ventilation box 16 is also communicated with a first air pipe 21 which can enable the air to be led into the second air cavity 26 in a one-way mode, and one end, penetrating out of the operation box 1, of the first air pipe 21 is connected with an inert gas storage box.
As can be seen from the foregoing, when the two air boxes 16 move away from each other, the space of the second air chamber 26 is also increased, and the inert gas from the outside is sucked into the second air chamber 26 through the second air pipe 24.
Then, after the coating is finished, the two air exchanging boxes 16 move relatively to reset, at this time, the air in the first air cavity 25 is exhausted out of the operation box 1, the inert gas in the second air cavity 26 is introduced into the air exchanging boxes 16 through the first air pipe 21, and the space of the second air cavity 26 is larger than that of the two first air cavities 25, so that after the inert gas is introduced into the operation box 1, the air pressure in the operation box 1 is changed from negative pressure to high pressure, the inert gas cannot damage the surfaces of the quantum dots, and the high pressure state can enable the upper isolating film 11, the quantum dot glue layer and the lower isolating film 12 to be attached more tightly, so that the quality of the finally formed quantum dot film is improved.
Further, when the quantum dot film is taken out after molding and then processed again, the oxygen content in the inside of the operation box 1 is kept low due to the filling of the inert gas, so that the subsequent processing and molding can be facilitated, and the oxygen content in the operation box 1 can be further reduced as the number of times of use increases.
Example four, further provided is an embodiment of a coating mechanism;
further, the coating mechanism comprises two mounting frames 3 fixed on the inner wall of the operation box 1 near the upper part, the inner walls of the two mounting frames 3 are respectively provided with a sliding block 4 capable of horizontally sliding in a reciprocating manner, an intermediate plate 27 is jointly fixed between the two sliding blocks 4, the bottom of the intermediate plate 27 is provided with a coating head 8 capable of coating, the outer wall of the intermediate plate 27 is provided with an inductor 9, the top of the ventilation box 16 is provided with a holding table 10, a lower isolation film 12 is arranged on the top of the holding table 10, when the sliding blocks 4 move towards the direction far away from the mounting shaft 5, the inductor 9 detects the lower isolation film 12 and controls the coating head 8 to coat the quantum dot glue solution, the mounting shaft 5 is jointly rotatably arranged between the two sliding blocks 4, the outer wall of the mounting shaft 5 is fixedly provided with a mounting roller 7, the mounting roller 7 comprises a semi-circular arc surface capable of adsorbing and fixing the upper isolation film 11, when the sliding blocks 4 move forwards and coat the quantum dot glue solution on the surface of the lower isolation film 12 through the coating head 8, the mounting roller 7 rotates and attaches the upper separator 11 to the lower separator 12.
3-4 show that when the air pressure in the operation box 1 is reduced to a preset value, the coating mechanism starts to work, the external mechanism can drive the slide block 4 to move in the direction away from the installation shaft 5, the slide block 4 can drive the intermediate plate 27 and the installation roller 7 to move together, the coating mechanism can be operated through an air cylinder and also can be controlled through the matching of a screw rod and a thread block, when the lower isolation film 12 is detected by the sensor 9, the coating head 8 can be controlled through an electric signal to start to coat quantum dot glue solution on the lower isolation film 12, and meanwhile, the installation roller 7 can rotate and attach the upper isolation film 11 to the lower isolation film 12 coated with the quantum dot glue solution.
Thus, the coating head 8 moves for coating, then the lower isolation film 12 is attached to the coating head, the contact time of the quantum dot glue solution and residual oxygen in the air is shortened, the damage probability of the quantum dot glue solution is further reduced, then when the lower isolation film 12 cannot be detected by the sensor 9, the coating head 8 stops coating, the coating of the quantum dot glue solution and the attachment between the upper isolation film 11 and the lower isolation film 12 are completed, and the attachment is tighter under the condition of high pressure.
Fifth, an embodiment of a trigger mechanism is further provided;
further, the trigger mechanism comprises two cross rods 17, the side walls of two sides of the air exchange box 16 are provided with holes, the two cross rods 17 are respectively slidably mounted in the two holes, the opposite ends of the two cross rods 17 are respectively fixed on the opposite surfaces of the two sliding boxes 19, the inner walls of two sides of the operation box 1 are respectively fixed with sliding frames 14, a toothed plate 13 is vertically and slidably mounted between the two sliding frames 14, one ends of the two cross rods 17 penetrating out of the air exchange box 16 are respectively rotatably mounted with a connecting rod 15, one ends of the two connecting rods 15 far away from the cross rods 17 are respectively rotatably mounted on the outer wall of the toothed plate 13, when the two cross rods 17 move in opposite directions, the connecting rod 15 drives the toothed plate 13 to move upwards, when the two cross rods 13 move upwards to a specified position, the coating mechanism is controlled to start coating through the trigger, the outer wall of the mounting shaft 5 is fixed with a gear 6 with the same radius as the mounting roller 7, when teeth of the gear 6 are meshed with the toothed grooves of the toothed plate 13, the mounting shaft 5 is driven to rotate, and the tooth grooves of the toothed plate 13 can make the gear 6 rotate half a turn.
Referring to fig. 3-5, it can be seen from the foregoing that when the two air-exchanging boxes 16 slide back to back, the two cross rods 17 are driven to move, then the toothed plate 13 is driven to move upwards along the inner wall of the sliding frame 14 under the connecting action of the two connecting rods 15, then when the two air-exchanging boxes 16 stop moving, the toothed plate 13 also stops moving upwards, and at this time, the external mechanism driving the sliding block 4 to move horizontally is controlled to start by the trigger.
Then slider 4 drives installation axle 5 and its fixed installation roller 7 and gear 6 and moves together, when scribbling leftover of bolt of cloth 8 and beginning the coating, the tooth of gear 6 and the tooth's socket of pinion rack 13 contact meshing, then along with slider 4's continuation removal, gear 6 can drive installation axle 5 and installation roller 7 and rotate, then the adsorbed last barrier film 11 that goes up on installation roller 7 is attached under on barrier film 12, simultaneously along with the rotation of installation roller 7, can cancel the adsorption of going up barrier film 11, make it attach on it, and through the attached mode of rolling, can prevent its inside bubble of appearing, the laminating is inseparabler.
After the gear 6 drives the installation roller 7 to rotate for a circle, the gear 6 is disengaged from the tooth grooves of the toothed plate 13, the semi-circular arc surface of the installation roller 7 faces upwards, and the rotation is stopped simultaneously to complete coating and fitting of the quantum dot film.
Then, the two sliding boxes 19 move relatively to reset, and as can be seen from the above, the inert gas in the second air cavity 26 is filled into the operating box 1, so that the interior of the operating box is changed from negative pressure to high pressure, and meanwhile, under the connecting action of the cross rod 17 and the connecting rod 15, the toothed plate 13 also moves downwards to reset, and at this time, the sliding block 4 also moves towards the direction of the mounting shaft 5 to reset, and because the gear 6 cannot be meshed with the toothed plate 13 when resetting, the sliding block cannot rotate in the resetting process, and the resetting is completed.
Further, the trigger member includes trigger switches 29 installed on the inner walls of the upper and lower sides of the sliding frame 14, and the slide block 4 is controlled to move forward by an electric signal when the tooth plate 13 contacts the upper trigger switch 29, and the slide block 4 is controlled to move backward by an electric signal when the tooth plate 13 contacts the lower trigger switch 29.
When the toothed plate 13 slides upwards to contact with the trigger switch 29 above, the movement is stopped, and meanwhile, the trigger switch 29 controls the mechanism for driving the slider 4 to move to start through an electric signal, and drives the slider 4 to move forwards in the direction that the coating head 8 is far away from the gear 6, so that the coating is performed.
Then, when the toothed plate 13 moves downwards, it contacts with the trigger switch 29 below, and at this time, the slide block 4 moves backwards in the direction that the coating head approaches the gear 6, and is reset after coating is finished.
Further, the ultraviolet lamp 28 is fixed on the outer wall of the mounting roller 7 far away from the semicircular arc surface, the ultraviolet lamp 28 is closed when the sliding block 4 moves forwards, and the ultraviolet lamp 28 is opened when the sliding block 4 moves backwards.
And the ultraviolet lamps with different wavelengths can be changed according to the thickness of the coated quantum dot glue solution.
Further, be provided with the damping between installation axle 5 and the slider 4, and gear 6 keeps away from the outer wall of centre of a circle and installs the balancing weight, and when gear 6 broke away from with the tooth's socket of pinion rack 13, the balancing weight can make the semicircle face of installation roller 7 keep up.
Known by the preceding content, when slider 4 drove gear 6 and installation roller 7 and reset the removal, gear 6 can't mesh with pinion rack 13, so installation roller 7's cambered surface up, makes purple light lamp 28 down simultaneously, through the action of gravity of balancing weight, can keep stall when making gear 6 and installation roller 7 reset to the scope and the distance that make purple light lamp 28 shine are more stable and even, and then stability when improving the solidification of quantum dot membrane.
The working principle is as follows: when the barrier-free quantum dot film processing device and the processing method thereof are used, before coating, air in the operation box 1 is sucked out through the negative pressure mechanism, at the moment, the ventilation box 16 is in a negative pressure state, and simultaneously, the content of oxygen and water vapor in the ventilation box is reduced along with the suction of the negative pressure mechanism, so that the situation that the surfaces of quantum dots are damaged by the oxygen and the water vapor when quantum dot glue solution is coated can be prevented, fluorescence quenching is caused, and then when the air pressure and the oxygen content in the operation box 1 are reduced to preset values, the coating mechanism starts to coat the quantum dot glue solution between the upper isolation film 11 and the lower isolation film 12 and enables the quantum dot glue solution to be attached to the upper isolation film and the lower isolation film 12.
After the coating, change the negative pressure environment in the control box 1 into high-pressure environment, when simultaneously resetting through coating mechanism, accelerate the solidification to the quantum dot membrane that has formed through illumination to cooperate the highly compressed environment, make and laminate inseparabler between last barrier film 11, quantum dot membrane and the barrier film 12 down, prevent that the quantum dot membrane is inhomogeneous and with the barrier film between the layering phenomenon, further improved the quality after the quantum dot membrane shaping.
The use method of the processing device of the barrier-free quantum dot film comprises the following steps:
s1, preparing quantum dot glue solution in proportion, arranging a lower isolation film 12 on a containing table 10, and adsorbing an upper isolation film 11 on a semi-arc surface of an installation roller 7;
the quantum dot glue solution is formed by mixing an adhesive, inorganic particles, a quantum dot concentrated solution and a photoinitiator.
S2, the two air-exchanging boxes 16 are driven by an external mechanism to slide back and forth, under the connecting action of the two swing rods 20, the piston plate 18 can slide downward while moving horizontally along with the air-exchanging boxes 16, at this time, the air in the operation box 1 can be sucked in by the air suction pipe 22 when the space in the first air cavity 25 is enlarged, so that the air pressure in the operation box 1 is lowered, the purpose of reducing the oxygen and water vapor contents in the operation box 1 is achieved, and meanwhile, the inert gas can be sucked in the second air cavity 26;
s3, coating work, meanwhile, under the connecting action of the cross bar 17 and the connecting rod 15, the toothed plate 13 also moves upwards, then after the toothed plate 13 contacts the trigger switch 29 above, the sliding block 4 is controlled to move horizontally by an electrical signal, then the sliding block 4 drives the mounting shaft 5 and the mounting roller 7 and the gear 6 fixed thereon to move together, when the coating head 8 starts coating, the teeth of the gear 6 are in contact and mesh with the teeth grooves of the toothed plate 13, then along with the continuous movement of the sliding block 4, the gear 6 drives the mounting shaft 5 and the mounting roller 7 to rotate, then the upper isolation film 11 adsorbed on the mounting roller 7 is attached to the lower isolation film 12, and simultaneously along with the rotation of the mounting roller 7, the adsorption action on the upper isolation film 11 can be gradually cancelled, so that the upper isolation film can be attached to the upper surface, and the preparation of the quantum dot film is completed.
S4, after coating, the two air boxes 16 are driven to slide relatively to reset by an external mechanism, at the moment, the inert gas of the second air cavity 26 is filled into the operation box 1, so that the internal low pressure is changed into a high pressure state, at the same time, the toothed plate 13 can also reset downwards under the connecting action of the cross rod 17 and the connecting rod 15, when the toothed plate 13 contacts the trigger switch 29 below, the sliding block 4 can be controlled to reset horizontally by an electric signal, at the moment, because the gear 6 is not meshed with the toothed plate 13, the gear 6 and the mounting roller 7 are in a static state, and simultaneously, the ultraviolet lamp 28 can be turned on and irradiates the quantum dot layer, because the photoinitiator contained in the quantum dot glue solution receives light energy under illumination, the light energy is changed from a ground state to an excited state and then decomposed into free radicals, thereby the polymerization reaction of the adhesive can be initiated, the solidification of the quantum dot film is accelerated, and the high pressure environment in the operation box 1 is matched, the upper isolation film 11, the quantum dot film and the lower isolation film 12 can be attached more tightly, the phenomenon that the quantum dot film is not uniform and is layered with the isolation film is prevented, the quality of the quantum dot film after being formed is further improved, and the curing process of the quantum dot film is completed.
The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may be obtained by processing without any doubt according to the common general knowledge in the art, and the connection manner of the respective parts is by the conventional means developed in the art, and the machines, parts and equipment are of the conventional type in the art, so that the detailed description thereof is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a there is not quantum dot membrane processingequipment that separates, includes control box (1), its characterized in that: an openable top cover (2) is installed at the top of the operation box (1), a ventilation box (16) is installed at the inner bottom of the operation box (1), and a coating mechanism for coating quantum dot glue solution between the lower isolation film (12) and the upper isolation film (11) is installed at the top of the ventilation box (16);
the inside of the air exchange box (16) is provided with a negative pressure mechanism which can suck out air in the operation box (1), and when the air pressure in the operation box (1) is reduced to a preset value, the coating mechanism is driven by the trigger mechanism to start coating.
2. The barrier-free quantum dot film processing device of claim 1, wherein: the negative pressure mechanism comprises two sliding boxes (19) which are arranged on the inner wall of a ventilation box (16) and can horizontally slide opposite to or oppositely to each other, piston plates (18) are vertically slidably arranged on the inner walls of the two sliding boxes (19), swing rods (20) are rotatably arranged at the bottoms of the two piston plates (18) and the inner bottom of the ventilation box (16), when the two ventilation boxes (16) move oppositely, the piston plates (18) are driven by the two swing rods (20) to slide downwards along the inner walls of the sliding boxes (19), a first air cavity (25) is formed inside the sliding box (19) on one side, away from the swing rods (20), of the piston plates (18), the outer walls of the two sliding boxes (19) are connected with air suction pipes (22) which enable the first air cavity (25) and the inside of the operation box (1) to be communicated, and one-way valves which enable air to flow into the first air cavity (25) in a one-way are arranged in the air suction pipes (22), the outer walls of the two sliding boxes (19) are connected with exhaust pipes (23) which enable the first air cavities (25) to be communicated with the outside of the operation box (1), and one-way valves which enable air to flow out of the first air cavities (25) in a one-way mode are installed in the exhaust pipes (23).
3. The barrier-free quantum dot film processing device of claim 2, wherein: a second air cavity (26) is formed inside the air exchange box (16) between the two sliding boxes (19), the volume of the second air cavity (26) is larger than the sum of the two first air cavities (25), a second air pipe (24) which can enable the air in the second air cavity (26) to enter the operation box (1) in a one-way mode is communicated with the outer wall of the air exchange box (16), a first air pipe (21) which can enable the air to enter the second air cavity (26) in a one-way mode is further communicated with the outer wall of the air exchange box (16), and one end, penetrating out of the operation box (1), of the first air pipe (21) is connected with the inert gas storage box.
4. The barrier-free quantum dot film processing device of claim 2 or 3, wherein: the coating mechanism comprises two mounting frames (3) which are fixed on an upper inner wall of an operation box (1), wherein the two mounting frames (3) are provided with sliding blocks (4) capable of horizontally sliding in a reciprocating manner on the inner walls of the two mounting frames (3), a middle plate (27) is jointly fixed between the two sliding blocks (4), a coating head (8) capable of coating is arranged at the bottom of the middle plate (27), an inductor (9) is arranged on the outer wall of the middle plate (27), a containing table (10) is arranged at the top of a ventilation box (16), a lower isolating membrane (12) is arranged at the top of the containing table (10), when the sliding blocks (4) move towards the direction far away from a mounting shaft (5), the inductor (9) detects that the lower isolating membrane (12) can control the coating head (8) to coat quantum dot glue solution, and the mounting shaft (5) is jointly rotatably arranged between the two sliding blocks (4), the outer wall of installation axle (5) is fixed with installation roller (7), installation roller (7) are including the semicircle face of adsorbable fixed last barrier film (11), slider (4) advance to move and through scribble during first (8) downward barrier film (12) surface coating quantum dot glue solution, installation roller (7) can rotate and will go up barrier film (11) and attach under on barrier film (12).
5. The barrier-free quantum dot film processing device of claim 4, wherein: the trigger mechanism comprises two cross rods (17), the side walls of two sides of the air exchange box (16) are provided with holes, the two cross rods (17) are respectively slidably mounted in the two holes, the opposite ends of the two cross rods (17) are respectively fixed on the back surfaces of the two sliding boxes (19), the inner walls of two sides of the operation box (1) are respectively fixed with sliding frames (14), a toothed plate (13) is vertically and slidably mounted between the two sliding frames (14), the two cross rods (17) penetrate out of one end of the air exchange box (16) and are respectively rotatably mounted with a connecting rod (15), one ends, far away from the cross rods (17), of the two connecting rods (15) are respectively rotatably mounted on the outer wall of the toothed plate (13), when the two cross rods (17) move back to back, the connecting rod (15) can drive the toothed plate (13) to move upwards, and when the toothed plate (13) moves upwards to a designated position, the coating mechanism is controlled by a trigger to start coating, the outer wall of installation axle (5) is fixed with gear (6) the same with installation roller (7) radius, works as can drive installation axle (5) and rotate when the tooth's of gear (6) and the tooth's socket meshing of pinion rack (13), just the tooth's socket of pinion rack (13) can make gear (6) rotate the half-turn.
6. The barrier-free quantum dot film processing device of claim 5, wherein: the trigger piece is including installing trigger switch (29) at the upper and lower both sides inner wall of slide frame (14), and when pinion rack (13) contact trigger switch (29) of top can be through the electric signal control slider (4) forward movement, when pinion rack (13) contact trigger switch (29) of below can be through electric signal control slider (4) retreat movement.
7. The barrier-free quantum dot film processing device of claim 6, wherein: and the outer wall of the mounting roller (7) far away from the semicircular arc surface is fixedly provided with a purple light lamp (28), when the sliding block (4) moves forwards, the purple light lamp (28) is closed, and when the sliding block (4) moves backwards, the purple light lamp is opened.
8. The barrier-free quantum dot film processing device of claim 5, wherein: be provided with the damping between installation axle (5) and slider (4), just gear (6) are kept away from the outer wall of centre of a circle and are installed the balancing weight, work as when gear (6) break away from with the tooth's socket of pinion rack (13), the balancing weight can make the semicircle face of installation roller (7) keep up.
9. The use method of the processing device of the barrier-free quantum dot film as claimed in claim 7, is characterized in that: the method comprises the following steps:
s1, preparing quantum dot glue solution in proportion, arranging a lower isolation film (12) on a containing table (10), and adsorbing an upper isolation film (11) on a semi-arc surface of an installation roller (7);
s2, working in advance, driving the two scavenging air boxes (16) to slide back and forth through an external mechanism, enabling the piston plate (18) to slide downwards along with the scavenging air boxes (16) while moving horizontally under the connecting action of the two swinging rods 20, enabling the space in the first air cavity (25) to be enlarged to suck air in the operation box (1) through the air suction pipe (22), enabling the air pressure in the operation box (1) to be lowered, achieving the purpose of reducing the oxygen and water vapor contents in the operation box (1), and enabling the second air cavity (26) to suck inert gas;
s3, coating work is carried out, meanwhile, under the connecting action of the cross rod (17) and the connecting rod (15), the toothed plate (13) can also move upwards, then after the toothed plate (13) contacts the trigger switch (29) above, the sliding block (4) can be controlled to move horizontally through an electric signal, then the sliding block (4) drives the mounting shaft (5) and the mounting roller (7) and the gear (6) fixed on the mounting shaft to move together, when the coating head (8) starts coating, the teeth of the gear (6) are in contact and meshed with the tooth grooves of the toothed plate (13), then along with the continuous movement of the sliding block (4), the gear (6) can drive the mounting shaft (5) and the mounting roller (7) to rotate, then the upper isolating film (11) adsorbed on the mounting roller (7) is attached to the lower isolating film (12), and simultaneously along with the rotation of the mounting roller (7), the adsorption effect on the upper isolating film (11) can be gradually cancelled, so that the quantum dot film can be attached to the upper surface of the substrate to complete the preparation of the quantum dot film;
s4, after coating, the two air exchange boxes (16) are driven to relatively slide by an external mechanism to reset, at the moment, inert gas of the second air cavity (26) is filled into the operation box (1), so that the low pressure in the second air cavity is changed into a high-pressure state, simultaneously, under the connecting action of the cross rod (17) and the connecting rod (15), the toothed plate (13) can also reset downwards, after the toothed plate (13) contacts the trigger switch (29) below, the sliding block (4) can be controlled to horizontally reset and move through an electric signal, at the moment, because the gear (6) is not meshed with the toothed plate (13), the gear (6) and the mounting roller (7) are in a static state, meanwhile, the ultraviolet lamp (28) can be opened and irradiates the quantum dot layer, and as a photoinitiator in the quantum dot glue liquid receives light energy under illumination, the light energy is changed from a ground state to an excited state and then decomposed into free radicals, the polymerization reaction of the adhesive can be initiated, further, the solidification of the quantum dot film is accelerated, the upper isolation film (11), the quantum dot film and the lower isolation film (12) can be attached more tightly by matching with a high-pressure environment in the operation box (1), the phenomenon that the quantum dot film is uneven and layered with the isolation film is avoided, the quality of the quantum dot film after being formed is further improved, and the solidification process of the quantum dot film is completed.
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| CN202210402081.2A CN114889308B (en) | 2022-04-18 | 2022-04-18 | Quantum dot film processing device and processing method thereof |
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| CN115923332A (en) * | 2023-01-18 | 2023-04-07 | 江苏时代天勤彩色包装有限公司 | Printing ink curing equipment for printing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118455009B (en) * | 2024-07-09 | 2024-09-13 | 常州昊翔电子有限公司 | Automatic gluing workstation of intelligent loudspeaker monomer |
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- 2022-04-18 CN CN202210402081.2A patent/CN114889308B/en active Active
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2023
- 2023-04-11 KR KR1020230047688A patent/KR20230149238A/en unknown
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| CN206444836U (en) * | 2017-01-23 | 2017-08-29 | 武汉保丽量彩科技有限公司 | A kind of quantum dot film coating process nitrogen protection structure |
| CN107722312A (en) * | 2017-09-30 | 2018-02-23 | 力王新材料（惠州）有限公司 | A kind of quantum dot optical thin film of no Obstruct membrane and preparation method thereof |
| CN209842292U (en) * | 2019-06-21 | 2019-12-24 | 衡山县佳诚新材料有限公司 | High-color-gamut quantum dot film applicable between liquid crystal panel and backlight module |
| CN110346972A (en) * | 2019-06-27 | 2019-10-18 | 惠州市华星光电技术有限公司 | Diffuser plate and its manufacturing method, backlight module, display device |
| CN111793448A (en) * | 2020-05-27 | 2020-10-20 | 南京贝迪电子有限公司 | Preparation method and processing equipment of ultrathin quantum dot film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115923332A (en) * | 2023-01-18 | 2023-04-07 | 江苏时代天勤彩色包装有限公司 | Printing ink curing equipment for printing |
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| Publication number | Publication date |
|---|---|
| CN114889308B (en) | 2023-07-04 |
| KR20230149238A (en) | 2023-10-26 |
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Denomination of invention: A quantum dot film processing device and its processing method Effective date of registration: 20231215 Granted publication date: 20230704 Pledgee: Zheshang Bank Co.,Ltd. Nanjing Branch Pledgor: Nanjing Beidi New Material Technology Co.,Ltd. Registration number: Y2023980071523 |
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