CN204194217U - Transfer printing roller and packaging adhesive film coating system - Google Patents
Transfer printing roller and packaging adhesive film coating system Download PDFInfo
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- CN204194217U CN204194217U CN201420663797.9U CN201420663797U CN204194217U CN 204194217 U CN204194217 U CN 204194217U CN 201420663797 U CN201420663797 U CN 201420663797U CN 204194217 U CN204194217 U CN 204194217U
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Abstract
Disclose a kind of packaging adhesive film coating system and transfer printing roller thereof.Packaging adhesive film coating system, comprising: brace table, is arranged for carrying by packed display floater; Glue storage device, for providing glue; Glue gatherer, is arranged on described brace table, is connected to receive the glue exported from glue storage device with glue storage device; Transfer printing roller, is arranged to receive glue from glue gatherer; And coating roller, glue is imported coating roller by transfer printing roller equably, and coating roller is by glue-coating on a display panel.Transfer printing roller comprises: cylindrical shell; Absorbed layer, is coated on cylindrical shell outside, and absorbed layer is provided with micropore that is many and ft connection; And transfer printing layer, be coated on the outside of absorbed layer, for glue is transferred to coating roller.Described transfer printing layer is provided with multiple first through hole, with the micropore allowing the impurity in glue to enter into absorbed layer.Utilize packaging adhesive film coating system, glue can be coated with on a display panel equably.
Description
Technical field
Embodiment of the present utility model relates to a kind of packaging adhesive film coating system, particularly relates to a kind of packaging adhesive film coating system and transfer printing roller thereof of the substrate for encapsulating display unit.
Background technology
In the field of display, organic electroluminescent LED (Organic Light EmittingDiode (OLED)) and active-matrix Organic Light Emitting Diode (Active Matrix OrganicLight Emitting Diode (AMOLED)) due to its have active illuminating, contrast high, can slimming, fast response time, manufacturing equipment less, the feature such as processing procedure is simpler of investment, be therefore widely used in flat-panel screens.Such as, the principle of luminosity of OLED is building block system evaporation some layers of organic material (comprising luminous organic material) between two electrodes, by applying DC voltage between electrodes, makes luminous organic material luminous.
In OLED display, luminous organic material is met water and is met oxygen and easily lost efficacy, and the glass substrate be thus arranged on before it must add back shroud and encapsulate, so that isolated steam and oxygen, and the service life of prolonged display.OLED display common metal cover plate, glass cover-plate or film encapsulate.Metal cover board is different from the coefficient of expansion of glass, easily make whole display unit be out of shape, and cost is high.At present, usually glass cover-plate is adopted.Based on the manufacturing process of OLED, to require that on glass cover-plate etching has the smooth multiple grooves of certain limit and bottom, in groove, load drier, etch high-precision register guide in addition simultaneously, to fit with the accurate contraposition of the glass substrate of display.
At present; in the manufacturing process of this glass cover-plate; first at the anti-etching diaphragm that the front and rear surfaces coating of the plate glass for the formation of substrate is thicker; then the mode exposed in the wherein one side of glass makes removes out groove pattern; the diaphragm in pattern is removed through development; glass is placed in etching liquid and etches groove, finally remove the diaphragm of glass surface.In this manufacturing process, need to adopt high-precision exposure machine, otherwise aligning accuracy does not reach encapsulation requirement, such manufacturing cost is very high; Particularly, the adhesion of diaphragm and glass surface is not enough, easily comes off, causes a large amount of defect, cost of manufacture is increased further.
Further, due to the requirement of coating speed, the uniformity of surface coating requires very high, therefore needs to provide a kind of and can realize the face automatic double surface gluer that the high and coating process of efficient gluing, gluing uniformity controls glue-spread very accurately.The drip gluing mode of current use, although coating speed is higher, gluing homogeneity is low, and needs to arrange many shower nozzles, needs a lot of time when realizing part replacement.
Utility model content
Embodiment of the present utility model provides a kind of packaging adhesive film coating system and transfer printing roller thereof, glue can be coated with on a display panel equably.
According to the embodiment of the utility model utility model, a kind of transfer printing roller is provided, comprises:
Cylindrical shell;
Absorbed layer, be coated on described cylindrical shell outside, described absorbed layer is provided with micropore that is many and ft connection; And
Transfer printing layer, is coated on the outside of described absorbed layer, for glue is transferred to coating roller,
Wherein, described transfer printing layer is provided with multiple first through hole, with the micropore allowing the impurity in glue to enter into described absorbed layer.
According in the transfer printing roller of a kind of embodiment of the present utility model, described absorbed layer comprises:
Accumulation layer, is coated on described cylindrical shell, and described micropore is formed in described accumulation layer; And
Integument, be coated on fixing described accumulation layer in described accumulation layer, described integument is provided with multiple second through hole, adds in described micropore to allow described impurity.
According in the transfer printing roller of a kind of embodiment of the present utility model, described micropore becomes large in radial directions from outside to inside gradually.
According in the transfer printing roller of a kind of embodiment of the present utility model, in described micropore, be provided with absorbing particles.
According in the transfer printing roller of a kind of embodiment of the present utility model, the size of described absorbing particles becomes large gradually from little in described micropore from inside to outside.
According to the embodiment of the further aspect of the utility model, a kind of packaging adhesive film coating system is provided, comprises: brace table, be arranged for carrying by packed display floater; Glue storage device, for providing glue; Glue gatherer, is arranged on described brace table, is connected to receive the glue exported from glue storage device with glue storage device; Transfer printing roller according to any one of above-described embodiment, is arranged to receive glue from described glue gatherer; And coating roller, glue is imported described coating roller by described transfer printing roller equably, and described coating roller is by glue-coating on said display panel.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, near the outside of described transfer printing roller, scraper plate is installed, with except the foreign material be attached on transfer printing roller or remaining glue.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described glue gatherer comprises multiple glue be arranged side by side and imports unit, each glue imports unit and comprises: fluid reservoir, is arranged for the glue storing and come from glue storage device; Nozzle, is communicated with described fluid reservoir, to discharge glue to transfer printing roller; And drive unit, be arranged for and the glue in fluid reservoir is driven in described nozzle.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described drive unit comprises: cylinder, is communicated with described fluid reservoir, to provide gas pressure in described fluid reservoir; Tracheae, is communicated with described cylinder, to be input in described cylinder by the gas of external air source; And control valve, be arranged on described tracheae, to control the pressure in described cylinder.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described drive unit also comprises: piston, is arranged in described fluid reservoir, and is moved by piston described in the gas-powered coming from described tracheae, flows out from nozzle to promote glue.
Packaging adhesive film coating system according to a kind of embodiment of the present utility model also comprises control system, and described control system comprises: checkout gear, is disposed for detecting the distribution situation of the glue be coated with on said display panel; And controller, be disposed for controlling described drive unit according to the difference situation of detected glue, to regulate the amount of the glue of discharging from nozzle.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described checkout gear comprises at least one camera head, and the distribution situation of described glue comprises at least one in the thickness of glue and planar dimension, bubble.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described checkout gear detects the coating pressure of described coating roller further.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described control system also comprises image processing apparatus, for processing to the picture signal of described camera head the distribution situation obtaining described glue, described image processing apparatus is configured for the noise signal in picture signal described in filtering.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, the coating layer that the surface coverage of described coating roller is made up of piezoelectric, described coating layer is configured for the adhesive liquid quantity controlling to be transferred on display floater.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, described coating layer is provided with relief pattern, and described controller controls described relief pattern and produces the deformation matched with the pattern to be generated of the respective regions of display floater.
According in the packaging adhesive film coating system of a kind of embodiment of the present utility model, when the respective regions of display floater has projection, the relief pattern that described controller controls described coating layer produces the deformation of caving in the position corresponding with the position of described projection; When the respective regions of display floater has depression, the relief pattern that described controller controls described coating layer produces protruding deformation in the position corresponding with the position of described depression.
According to packaging adhesive film coating system and the transfer printing roller thereof of the utility model above-described embodiment, relatively rotate at transfer printing roller and coating roller with while being coated on coating roller equably by the glue on transfer printing roller, absorbed layer can adsorb the glue that coating roller retains on the surface or other foreign material sticked on coating roller surface.Like this; effectively can clean coating roller; guarantee coating roller upper be once coated with time glue can be coated with on a display panel equably; and available protecting is coated on the coating material on the surface of coating roller; extend the service life of coating material, reduce the number of times changing coating material.
Accompanying drawing explanation
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the functional-block diagram of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model;
Fig. 2 is a kind of side view of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model, not shown brace table;
Fig. 3 is the another kind of side view of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model, there is shown brace table;
Fig. 4 is according to the side view on a kind of axial direction of transfer printing roller of exemplary embodiment;
Fig. 5 is the principle schematic importing unit according to an a kind of glue of exemplary embodiment;
Fig. 6 is the control principle block diagram of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model;
Fig. 7 is the pulse sequence figure in a painting work stage according to a kind of exemplary embodiment;
Fig. 8 is the schematic diagram according to the sealing film arrangement on a kind of display base plate of exemplary embodiment; And
Fig. 9 controls the functional-block diagram of glue discharge rate according to a kind of control system that utilizes of exemplary embodiment.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In the description, same or analogous drawing reference numeral indicates same or analogous parts.The explanation of following reference accompanying drawing to the utility model embodiment is intended to make an explanation to overall utility model design of the present utility model, and not should be understood to one restriction of the present utility model.
According to the utility model utility model design generally, a kind of packaging adhesive film coating system is provided, comprises: brace table, be arranged for carrying by packed display floater; Glue storage device, for providing glue; Glue gatherer, is arranged on described brace table, is connected to receive the glue exported from glue storage device with glue storage device; And transfer printing roller, be arranged to receive glue from described glue gatherer.Transfer printing rolling wheel structure becomes for glue is imported coating roller, comprising: cylindrical shell; Absorbed layer, be coated on described cylindrical shell outside, described absorbed layer is provided with micropore that is many and ft connection; And transfer printing layer, be coated on the outside of described absorbed layer, for glue is transferred to coating roller, wherein, described transfer printing layer is provided with multiple first through hole, with the micropore allowing the impurity in glue to enter into described absorbed layer.
In the following detailed description, for ease of explaining, many concrete details have been set forth to provide the complete understanding to this disclosure embodiment.But significantly, one or more embodiment also can be implemented when not having these details.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.
Fig. 1 is the functional-block diagram of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model; Fig. 2 is a kind of side view of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model, not shown brace table; Fig. 3 is the another kind of side view of the packaging adhesive film coating system according to the first exemplary embodiment of the present utility model, there is shown brace table.Packaging adhesive film coating system according to a kind of exemplary embodiment of the utility model is used for display floater packaging adhesive film, such as, display floater of the present utility model can based on Organic Light Emitting Diode (Organic Light Emitting Diode (OLED)), and active-matrix Organic Light Emitting Diode (Active Matrix Organic Light Emitting Diode (AMOLED)) display floater, and comprise box array base palte together and touch substrate, by the substrate outer enclosure glued membrane at display floater, such as water can be prevented, steam, the outside foreign material of oxygen and so on enter display floater inside, thus the luminescent material of display floater inside and external physical are completely cut off, the stable performance of long-term maintenance luminescent material, extend the service life of display floater.
See Fig. 1-3, the packaging adhesive film coating system according to a kind of exemplary embodiment of the utility model comprises: brace table 1, glue storage device 2, glue gatherer 3, transfer printing roller 4 and coating roller 5.Brace table 1 is arranged for and carries and fix packed display floater 100; Glue storage device 2 is for providing glue; Glue gatherer 3 is arranged on brace table 1, such as, be connected to receive the glue exported from glue storage device 2 with glue storage device 2 by conduit; Transfer printing roller 4 is arranged to receive glue from glue gatherer 2; Glue is imported coating roller 5 by described transfer printing roller 4 equably, coating roller 5 by glue-coating on display floater 100, coating glue on a display panel forms packaging adhesive film, can prevent the outside foreign material of such as water, steam, oxygen and so on from entering display floater inside, thus the luminescent material of display floater inside and external physical are completely cut off.
As shown in Figures 3 and 4, transfer printing roller 4 is configured for being imported by glue on coating roller 5, and comprise: be arranged on cylindrical shell 42, absorbed layer and the transfer printing layer in rotating shaft 41, it is outside that absorbed layer is coated on cylindrical shell 42, and absorbed layer 42 is provided with micropore that is many and ft connection.Transfer printing layer 45 is coated on the outside of absorbed layer, for glue is transferred to coating roller 5.Transfer printing layer 45 is provided with multiple first through hole, with the micropore allowing the impurity in glue to enter into absorbed layer.Such as, transfer printing layer 45 is made up of the fine mesh of softness, can with integument 44 close contact, to control to be coated on the adhesive liquid quantity on coating roller 5.Like this, the foreign material in glue can be absorbed, the glue on print-on coating roller 5 is coated on coating roller equably.And absorbed layer can also absorb glue unnecessary on transfer printing roller.
In a kind of exemplary embodiment, absorbed layer comprises accumulation layer 43 and integument 44, and wherein, accumulation layer 43 is coated on cylindrical shell 42, and micropore is formed in accumulation layer, to store foreign material or unnecessary glue.Integument 44 is coated on fixed storage layer 43 in accumulation layer 43, and integument 44 is provided with multiple second through hole, adds in micropore to allow impurity.Absorbing particles is provided with, to improve adsorption capacity in described micropore.
According to transfer printing roller 4 and the packaging adhesive film coating system comprising this transfer printing roller of the utility model embodiment, because transfer printing roller 4 is provided with absorbed layer, the glue coming from glue gatherer 2 can be absorbed equably, realize being uniformly distributed of glue.Such as, the accumulation layer 43 of absorbed layer can be made up of any one in polyamine ethyl ester, polytetrafluoroethylene (PTFE), CNT and form similar foaming structure.Relatively rotate with while the glue on transfer printing roller 4 is coated on coating roller 5 equably at transfer printing roller 4 and coating roller 5, the accumulation layer 43 of absorbed layer can by other foreign material in the second through hole absorption glue on the first through hole on transfer printing layer and integument 44 or unnecessary glue, and these foreign material enter into and are arranged on the absorbing particles of micropore.
In a kind of exemplary embodiment, the micropore in accumulation layer 43 becomes large in radial directions from outside to inside gradually; The size of absorbing particles becomes large gradually from little in micropore from inside to outside.Like this, be conducive to foreign material and internally concentrate in radial directions in micropore, thus hold more foreign material.
In a kind of exemplary embodiment, install scraper plate 46 near outside the transfer printing layer 45 of transfer printing roller 4, transfer printing roller 4 rotates relative to scraper plate 46, scraper plate 46 is struck off be attached to the glue of foreign material on transfer printing roller 4 or remnants.Like this; effectively can clean further transfer printing roller; guarantee that glue can be evenly distributed on transfer printing roller 5 when upper once transfer printing by transfer printing roller; and available protecting is coated on the coating material on the surface of coating roller; extend the service life of coating material, reduce the number of times changing coating material.
Such as, glue storage device 2 is arranged on brace table, can arrange digital display system, and the input quantity of glue during can clearly illustrate that operation also can regulate adhesive liquid quantity according to handling situations in time.Coating roller 5 is by the process of glue-coating on display floater 100, and coating roller 5 is relative to display floater 100.
In a kind of embodiment of the present utility model, as shown in Figure 1, glue gatherer 3, transfer printing roller 4 and coating roller 5 are all arranged on support 11, and support 11 can be arranged on brace table 1 relative to brace table 1 movably by guide rail 12.Support 11 is also provided with positioner 36, for positioning the particular location of glue gatherer 3, transfer printing roller 4 and coating roller 5.Positioner 36 comprises one or more motor of glue gatherer 3, transfer printing roller 4 and coating roller 5 correspondence respectively.By operating corresponding motor, glue gatherer 3, transfer printing roller 4 and coating roller 5 can be made to move on horizontal direction (axial direction of coating roller 5) or longitudinal direction relative to brace table.In the interchangeable embodiment of one, brace table 1 is arranged to can along guide rail movement.
See Fig. 1-3 and 5, in a kind of exemplary embodiment, glue gatherer 3 comprises multiple glue be arranged side by side and imports unit, and each glue imports unit and comprises fluid reservoir 31, nozzle 32 and drive unit.Fluid reservoir 31 is arranged for the glue storing and come from glue storage device; Nozzle 32 is communicated with fluid reservoir 31, to discharge glue to transfer printing roller 4; Drive unit is arranged for and is driven in nozzle 32 by the glue in fluid reservoir 31.As shown in Figure 2, multiple nozzle is in line, and discharges glue, glue glue is coated on transfer printing roller on the surface of the roughly whole axial direction of transfer printing roller 4.Because glue has viscosity, and the opening of nozzle 32 is very little, utilizes drive unit can apply pressure to the glue in fluid reservoir 31, drives glue to flow out from nozzle 32.
In one embodiment, drive unit comprises cylinder 33, tracheae 34 and control valve 35.Cylinder 33 is communicated with fluid reservoir 31, to provide gas pressure in fluid reservoir 31; Tracheae 34 is communicated with described cylinder 33, to be input in cylinder 33 by the gas of external air source (not shown), thus applies pressure to fluid reservoir 31, drives glue to flow out from nozzle; Control valve 35 is arranged on tracheae 34, with the pressure in control cylinder 33.Further, each glue imports unit and also comprises the positioner 36 importing unit for locating whole glue, and this positioner 36 is arranged on the support 11 that is arranged on brace table 1.Positioner 36 such as comprises motor, to drive corresponding glue to import the position of unit relative to brace table, and such as height.In addition, transfer printing roller 4 and coating roller 5 are also arranged on positioner 36.
Further, drive unit also comprises: piston (not shown), and piston is arranged in fluid reservoir 31, and is moved by the gas-powered cylinder coming from tracheae 34, discharges from nozzle 32 to promote glue.When directly being contacted with glue by gas and driven glue, response speed can be improved, but due to the viscosity of glue self, the glue being arranged in fluid reservoir near-wall is tending towards adhering on tube wall, thus the glue being positioned at center is easily pushed, cause the glue of discharging from nozzle uneven.When arranging piston, piston contacts with glue and promotes glue, makes the uniform force of glue, evenly can discharge, but reduce response speed from nozzle, when gas pressure changes, can produce hysteresis.
In embodiment of the present utility model, utilize gas with pressure, such as nitrogen drives glue to discharge from nozzle 32 as drive medium, can simplify the structure of whole glue gatherer.In alternative embodiments, piezoelectric element can be adopted to drive glue, can also adopt by motor-driven piston or actuated by cams glue.Can select drive unit according to actual conditions, the utility model is not construed as limiting.
See Fig. 1,8 and 9, packaging adhesive film coating system according to a kind of exemplary embodiment of the present utility model also comprises control system, described control system comprises: checkout gear and controller, and wherein checkout gear is disposed for detecting the distribution situation of the glue be coated on display floater 100; The such as controller of Programmable Logic Controller 8 (PLC) and so on is disposed for the difference situation accessory drive according to detected glue, to regulate the amount of the glue of discharging from nozzle 32.Amount and discharge opportunity of glue ejection can be controlled by controller, similar Medical transfusion mode is such as adopted to discharge glue from nozzle 32, independently can control the discharge rate at each nozzle place, and adjacent glue can be regulated voluntarily to import spacing between unit by positioner 36 (Fig. 5).Like this, such as bubble can be avoided, be coated with unsuccessfully, the generation of the defect such as drop accumulation, on the display floater that glue can be made to be coated with equably, pass through coating quality.
See Fig. 6, in a kind of exemplary embodiment, checkout gear comprises at least one camera head 6, such as, arrange three infrared eyes.The position relationship between three camera heads 6 and the position relationship between each camera head and brace table can be regulated as required.The distribution situation of glue comprises at least one in the thickness of glue, planar dimension, bubble.Further, the coating pressure of coating roller 5 can be detected further by checkout gear.Such as, according to camera head 6 obtain coating roller 5 and brace table 1 on display floater between distance, determine coating pressure.
Control system also comprises image processing apparatus 7, and for processing to the picture signal of camera head 6 distribution situation obtaining glue, such as, image processing apparatus 7 is configured for the noise signal in filtering picture signal.
When utilizing camera head to take, may with noise jamming in the image obtained.Noise easily worsens the quality of image, and blurred picture floods characteristics of image, brings difficulty to graphical analysis.The main cause that picture noise produces is the disturbance of environment in the collection and transmission deriving from image and artificial factor.In image processing process, owing to being subject to various noise source in gatherer process, image usually there will be the pixel that some are isolated.These pixels and neighbor pixel have significantly different, disturb IMAQ effect.If do not carried out filtering, bring impact by later image region segmentation, analysis, process.Such as, adopt linear filter can preferably removal of images collection in noise jamming problem.
In a kind of exemplary embodiment of the present utility model, adopt a kind of based on the noise in efficient medium filtering image processing algorithm removal of images, effect ground restraint speckle, filtering impulse disturbances and image scanning noise, avoid the image detail that linear filter brings fuzzy simultaneously, and remain marginal information.
Intermediate value in image procossing is defined as: one group of number X1, X2, X3 ... Xn (X1≤X2≤X3 ... ≤ Xn), this n number, according to value size order arrangement is as follows:
Wherein y is sequence X 1, X2, X3 ... the intermediate value of Xn.
Carry out image denoising sonication with medium filtering and need following step: setting filter module size, as got 5 × 5 modules; Module is roamed in the picture, and module centers is overlapped with location of pixels a certain in image; The gray value of the next respective pixel of read module; These gray values are sorted from small to large; Intermediate value in a conduct in the middle of finding out in these values; Middle intermediate value is assigned to corresponding templates center pixel.At this moment the gray value differences of surrounding pixel just can be made to go to zero, thus eliminate isolated noise point.
Utilize IMAQ Vision coloured image can be carried out medium filtering process, method is: from original 32 bit images, extracts red, green, blue three color scheme colour table, colour picture R, G, B 32 integer representations in IMAQ Vision.Respectively in RGB, red, green, blue palette (8) carries out medium filtering process, ensures clear border, guarantee fruit size feature while random noise attenuation.Original image is changed with corresponding positions computing by RGB palette after process again, generates the new coloured image removing noise.
For obtaining the image of certain position on display floater 100, can lighting device be set.Lighting device such as adopts strong, luminous strong, low in energy consumption, little, the spectral region of dispelling the heat of colour rendering and life-span high LED as light source.
Picture signal is being processed, obtain the distribution situation about the glue on display floater, as found existing defects, such as in uneven thickness, there is bubble, then send corresponding control instruction by Programmable Logic Controller 8 (PLC) to control valve 35, change the aperture of control valve 35, such as, strengthen or reduce the amount coming from the Compressed Gas of source of the gas (not shown), improve or reduce the pressure in cylinder 33, thus controlling the adhesive liquid quantity from nozzle 32 discharge.Piston is set in fluid reservoir, by changing the pressure in cylinder 33, the position of piston can be changed, and then promote glue discharge nozzle by piston.
As shown in Figure 9, checkout gear has the function detecting the distribution situation of glue and the coating pressure of coating roller, namely can realize pressure detecting and coating state-detection, above composition graphs 8 describe the process of the discharge rate of the distribution situation Control Nozzle according to glue.The packaging adhesive film coating system of the utility model embodiment can also control the pressure of coating roller.Such as, detect coating roller to the pressure of display floater by checkout gear, if pressure is too large, then cause the thickness of the glue be coated with too little, and pressure is too little, then cause the thickness of the glue be coated with too large.Thickness is too large or too little, is all unfavorable for the Painting effect of glue.Such as, when checkout gear detects that glue thickness is too large, the motor to positioner is sent instruction by Programmable Logic Controller, to reduce the height of coating roller relative to display floater by positioner, thus reduces the thickness of glue.
Further, as shown in Figure 9, control system also comprises photoelectric encoder, to detect the position of coating roller 5.Control system also comprises piston position feedback unit, to be fed back in controller the position of the piston in fluid reservoir.In the case, be used as a pneumatic servo by the piston of gas push, can at liquid storage indoor moving.Piston control system also comprises temperature difference upper limit setting unit, to set corresponding detected object, the thickness of such as glue and planar dimension, bubble, coating pressure etc., when described detected object exceeds predetermined temperature difference higher limit, then control the discharge rate of glue or the height of coating roller by controller.
According to the packaging adhesive film coating system of a kind of embodiment of the present utility model, as shown in figs. 1 and 3, the coating layer 51 that the surface coverage of coating roller 5 is made up of piezoelectric, described coating layer 51 is configured for the adhesive liquid quantity controlling to be transferred on display floater 100.Like this, glue can be made to be coated on equably on display base plate 100.Coating layer 51 is provided with relief pattern, and the controller of such as PLC 8 and so on controls relief pattern and produces the deformation matched with the pattern to be generated of the respective regions of display floater.
In a kind of exemplary embodiment, controller can control the concavo-convex state of the coating layer 51 be made up of piezoelectric, such as, when the respective regions of display floater 100 has projection, the relief pattern that controller controls coating layer 51 produces the deformation of caving in the position corresponding with the position of projection; When the respective regions of display floater 100 has depression, the relief pattern that controller controls coating layer 51 produces protruding deformation in the position corresponding with the position of depression.According to the concaveconvex shape coating glue on the surface of display floater 100, the uniformity of glue-coating can be improved like this.
The packaging adhesive film coating system of the utility model embodiment according to the position of the respective regions of display floater to be coated, can control the variable coating layer of piezoelectricity and produces or eliminate the relief pattern corresponding with the respective regions of each display floater.Such as, utilize controller to set different parameters by the coating layer variable to piezoelectricity, it can be made to produce different relief patterns, with corresponding with the surface texture of display base plate, improve the uniformity of glue-coating.Like this, transfer printing roller can be made to be applicable to the display base plate to be coated of Multiple Type.Such as, for the display base plate to be coated of different model, directly set different parameters by the coating layer made piezoelectric and just can realize producing dissimilar print surface relief pattern.
According to the embodiment of the further utility model of the utility model, see Fig. 1-6 and 9, thering is provided a kind of utilizes packaging adhesive film coating system described in above-mentioned any embodiment to the method for display floater 100 packaging adhesive film, comprises the steps: display floater 100 to be fixed on brace table 1; Glue is carried to glue gatherer 3 by glue storage device 2; By glue gatherer 3, glue is coated on the surface of transfer printing roller 4 equably; By the rotation of transfer printing roller 4 relative to coating roller 5, glue is transferred on coating roller 5 by transfer printing roller 4, and is adsorbed the foreign material sticked on transfer printing roller 4 by absorbed layer 43; And by the relative movement between coating roller 5 and display floater 100, by glue-coating on display floater 100.
According to the method to display floater 100 packaging adhesive film of the utility model embodiment, because the absorbed layer 43 of transfer printing roller 4 can absorb the glue coming from glue gatherer 2 equably, realize being uniformly distributed of glue.Relatively rotate with while the glue on transfer printing roller 4 is coated on coating roller 5 equably at transfer printing roller 4 and coating roller 5, absorbed layer 43 can adsorb the glue that coating roller 5 retains on the surface or other foreign material sticked on coating roller surface, and these foreign material enter into and are arranged on the absorbing particles of micropore.Like this; effectively can clean coating roller; guarantee coating roller upper be once coated with time glue can be coated with on a display panel equably; and available protecting is coated on the coating material on the surface of coating roller; extend the service life of coating material, reduce the number of times changing coating material.
In a kind of exemplary embodiment, by glue gatherer 3, by glue, the step be coated in equably on the surface of transfer printing roller 4 comprises: the distribution situation detecting the glue be coated on display floater 100; And the amount of the glue of discharging from the nozzle 32 of glue gatherer 3 is controlled to adjust according to the difference situation of detected glue.Such as, the distribution situation of described glue comprises at least one in the thickness of glue and planar dimension, bubble.Like this, such as bubble can be avoided, be coated with unsuccessfully, the generation of the defect such as drop accumulation, on the display floater that glue can be made to be coated with equably, pass through coating quality.
In one embodiment, the step detecting the distribution situation of the glue be coated on display floater 100 comprises: utilize the picture signal of image processing apparatus 7 pairs of camera heads 6 to process to obtain the distribution situation of described glue, and picture signal is being carried out to the noise signal in processing procedure in picture signal described in filtering, thus avoid retry signal to the adverse effect of testing result, improve the accuracy of testing result.
In one embodiment, see Fig. 8 and 2, by in the step of glue-coating on described display floater 100, the glue being coated on the marginal portion 101 of display floater 100 is different from the physical property of the glue of the main part 102 be coated on inside marginal portion, makes the sealing of the glued membrane formed in marginal portion 101 higher than the sealing of the glued membrane formed in main part 102.Such as, described physical property comprises at least one in the concentration of glue, thickness and viscosity.The glue of marginal portion 101 and the glue of main part 102 can be identical, also can be different.Because marginal portion relates to the position of such as color membrane substrates and array base palte combination, and be subject to more impact relative to being positioned at middle main part 102, therefore by making the sealing of the glued membrane formed in marginal portion 101 higher than the sealing of the glued membrane formed in main part 102, reduce the possibility of marginal portion breakage, the sealing of marginal portion can be improved.
In a kind of exemplary embodiment, by glue gatherer 3 glue is coated in equably in the step on the surface of transfer printing roller 4, the glue that at least one glue input block in both sides is discharged is different from the physical property of the glue that the multiple glue input blocks between described both sides are discharged, thus the glue making the marginal portion 101 being coated on display floater 100 is different from the physical property of the glue of the main part 102 be coated on inside marginal portion.In one embodiment, when the overall width being imported unit by the multiple glues being arranged to a line is less than the width of display floater 100, glue gatherer 3 can be arranged to transversely direction (axial direction of coating roller) to move on support 11, and complete the operation performing at least one the glue input block discharge glue being positioned at both sides after the multiple glue input blocks between described both sides discharge glue again.In the interchangeable embodiment of one, when the overall width being imported unit by the multiple glues being arranged to a line is substantially equal to the width of display floater 100, the multiple glue input block between described both sides discharges glue with at least one the glue input block being positioned at both sides simultaneously.
In a kind of exemplary embodiment of the present utility model, by glue gatherer 3, by glue, the step be coated in equably on the surface of transfer printing roller 4 comprises: after each glue importing unit of glue gatherer 3 completes the operation of discharge glue in a stage, the glue drop having exposed the nozzle 32 of glue importing unit is inhaled in described nozzle.Like this, after the painting work completing a stage, drop inlet nozzle 32 and can not drop onto on display floater 100, avoids and occur unnecessary drop on display floater 100, and also surface is suspended on the drop solidification of nozzle 32 outside.
Fig. 7 is the pulse sequence figure in a painting work stage according to a kind of exemplary embodiment.See Fig. 1-3,5 and 7, start a painting work stage at time t1, now cylinder 33 is closed relative to extraneous air; In cylinder, carry compressed gas by tracheae 34, such as nitrogen, discharge glue to transfer printing roller 4 owing to being under pressure from nozzle 32 in fluid reservoir 31, glue is transferred on coating roller by transfer printing roller 4 again; After predetermined time A-time, brace table 1 moves relative to coating roller 5, starts painting work.If need a painting work stage of stopping at time t2, stop by tracheae 34 to supplying nitrogen in cylinder; Cylinder 33 is open relative to extraneous air, and the pressure in cylinder 33 and external air pressure roughly balance; Suction valve operates, and utilizes suction valve to be negative pressure by the pressure in cylinder 33 relative to extraneous air, thus the glue drop being suspended on nozzle 32 outside is drawn into nozzle interior; Brace table stops mobile afterwards.
According to packaging adhesive film coating system and the transfer printing roller thereof of the utility model above-described embodiment, relatively rotate at transfer printing roller and coating roller with while being coated on coating roller equably by the glue on transfer printing roller, absorbed layer can adsorb the glue that transfer printing roller surface retains or other foreign material sticked on coating roller surface.Like this; effectively can clean transfer printing roller; guarantee that transfer printing roller can by glue equably respectively on transfer printing roller when upper once transfer printing; and available protecting is coated on the coating material on the surface of coating roller; extend the service life of coating material, reduce the number of times changing coating material.In addition, coating roller and display base plate synchronous operation, effectively can clean the glue of remained on surface during the glue-coating for the formation of packaging adhesive film of display base plate, and glue can be absorbed equably, succinctly clearly can regulate the coating flow of glue, can not cause because glue flows into too much and make the glue-coating uneven phenomenon for the formation of packaging adhesive film, avoiding residual glue in coating process and clean the phenomenon of inconvenience.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (17)
1. a transfer printing roller, is characterized in that, comprising:
Cylindrical shell;
Absorbed layer, be coated on described cylindrical shell outside, described absorbed layer is provided with micropore that is many and ft connection; And
Transfer printing layer, is coated on the outside of described absorbed layer, for glue is transferred to coating roller,
Wherein, described transfer printing layer is provided with multiple first through hole, with the micropore allowing the impurity in glue to enter into described absorbed layer.
2. transfer printing roller as claimed in claim 1, it is characterized in that, described absorbed layer comprises:
Accumulation layer, is coated on described cylindrical shell, and described micropore is formed in described accumulation layer; And
Integument, be coated on fixing described accumulation layer in described accumulation layer, described integument is provided with multiple second through hole, adds in described micropore to allow described impurity.
3. transfer printing roller as claimed in claim 2, is characterized in that, described micropore becomes large in radial directions from outside to inside gradually.
4. the transfer printing roller as described in any one in claim 1-3, is characterized in that, is provided with absorbing particles in described micropore.
5. transfer printing roller as claimed in claim 4, is characterized in that, the size of described absorbing particles becomes large gradually from little in described micropore from inside to outside.
6. a packaging adhesive film coating system, is characterized in that, comprising:
Brace table, is arranged for carrying by packed display floater;
Glue storage device, for providing glue;
Glue gatherer, is arranged on described brace table, is connected to receive the glue exported from glue storage device with glue storage device;
Transfer printing roller according to any one of claim 1-5, is arranged to receive glue from described glue gatherer; And
Coating roller, glue is imported described coating roller by described transfer printing roller equably, and described coating roller by glue-coating on said display panel.
7. packaging adhesive film coating system as claimed in claim 6, is characterized in that, installs scraper plate near the outside of described transfer printing roller, with except the foreign material be attached on transfer printing roller or remaining glue.
8. packaging adhesive film coating system as claimed in claim 6, is characterized in that, described glue gatherer comprises multiple glue be arranged side by side and imports unit, and each glue imports unit and comprises:
Fluid reservoir, is arranged for the glue storing and come from glue storage device;
Nozzle, is communicated with described fluid reservoir, to discharge glue to transfer printing roller; And
Drive unit, is arranged for and is driven in described nozzle by the glue in fluid reservoir.
9. packaging adhesive film coating system as claimed in claim 8, it is characterized in that, described drive unit comprises:
Cylinder, is communicated with described fluid reservoir, to provide gas pressure in described fluid reservoir;
Tracheae, is communicated with described cylinder, to be input in described cylinder by the gas of external air source; And
Control valve, is arranged on described tracheae, to control the pressure in described cylinder.
10. packaging adhesive film coating system as claimed in claim 9, it is characterized in that, described drive unit also comprises:
Piston, is arranged in described fluid reservoir, and is moved by piston described in the gas-powered coming from described tracheae, flows out from nozzle to promote glue.
11. packaging adhesive film coating systems as described in any one in claim 8-10, it is characterized in that, also comprise control system, described control system comprises:
Checkout gear, is disposed for detecting the distribution situation of the glue be coated with on said display panel; And
Controller, is disposed for controlling described drive unit according to the difference situation of detected glue, to regulate the amount of the glue of discharging from nozzle.
12. packaging adhesive film coating systems as claimed in claim 11, it is characterized in that, described checkout gear comprises at least one camera head, and the distribution situation of described glue comprises at least one in the thickness of glue and planar dimension, bubble.
The 13. packaging adhesive film coating systems stated as claimed in claim 12, it is characterized in that, described checkout gear detects the coating pressure of described coating roller further.
The 14. packaging adhesive film coating systems stated as claimed in claim 12, it is characterized in that, described control system also comprises image processing apparatus, for processing to the picture signal of described camera head the distribution situation obtaining described glue,
Described image processing apparatus is configured for the noise signal in picture signal described in filtering.
15. packaging adhesive film coating systems as claimed in claim 11, is characterized in that, the coating layer that the surface coverage of described coating roller is made up of piezoelectric, and described coating layer is configured for the adhesive liquid quantity controlling to be transferred on display floater.
16. packaging adhesive film coating systems as claimed in claim 15, it is characterized in that, described coating layer is provided with relief pattern, and described controller controls described relief pattern and produces the deformation matched with the pattern to be generated of the respective regions of display floater.
17. packaging adhesive film coating systems as claimed in claim 16, it is characterized in that, when the respective regions of display floater has projection, the relief pattern that described controller controls described coating layer produces the deformation of caving in the position corresponding with the position of described projection; When the respective regions of display floater has depression, the relief pattern that described controller controls described coating layer produces protruding deformation in the position corresponding with the position of described depression.
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| CN201420663797.9U CN204194217U (en) | 2014-11-07 | 2014-11-07 | Transfer printing roller and packaging adhesive film coating system |
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| CN201420663797.9U CN204194217U (en) | 2014-11-07 | 2014-11-07 | Transfer printing roller and packaging adhesive film coating system |
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| CN204194217U true CN204194217U (en) | 2015-03-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104307686A (en) * | 2014-11-07 | 2015-01-28 | 合肥京东方光电科技有限公司 | Transfer roller, packaging rubber film coating system and method of packaging rubber film |
| CN108538887A (en) * | 2018-03-30 | 2018-09-14 | 武汉华星光电半导体显示技术有限公司 | Oled panel and preparation method thereof, device and OLED display |
| CN109676939A (en) * | 2019-02-12 | 2019-04-26 | 长沙越联精密成型制品有限公司 | Steel disc automatic gluing device inside automobile waist linear sealing item |
| US10581030B2 (en) | 2018-03-30 | 2020-03-03 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Manufacturing method for OLED panel and OLED manufacturing apparatus |
| CN111168788A (en) * | 2020-01-14 | 2020-05-19 | 竺玉贞 | Environment-friendly plywood processing is with controllable formula adhesive deposite device of rubber coating volume |
| CN111570176A (en) * | 2020-04-24 | 2020-08-25 | 新疆红旗坡农业发展集团有限公司 | Automatic accurate high-efficient system of filming of fruit wax |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104307686A (en) * | 2014-11-07 | 2015-01-28 | 合肥京东方光电科技有限公司 | Transfer roller, packaging rubber film coating system and method of packaging rubber film |
| WO2016070557A1 (en) * | 2014-11-07 | 2016-05-12 | 京东方科技集团股份有限公司 | Transfer printing roller, packaged-film coating system, and method for packaging film |
| US10610886B2 (en) | 2014-11-07 | 2020-04-07 | Boe Technology Group Co., Ltd. | Transfer roller, encapsulating glue film coating system, and method of encapsulating the glue film |
| CN108538887A (en) * | 2018-03-30 | 2018-09-14 | 武汉华星光电半导体显示技术有限公司 | Oled panel and preparation method thereof, device and OLED display |
| US10581030B2 (en) | 2018-03-30 | 2020-03-03 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Manufacturing method for OLED panel and OLED manufacturing apparatus |
| CN108538887B (en) * | 2018-03-30 | 2020-07-31 | 武汉华星光电半导体显示技术有限公司 | O L ED panel, manufacturing method and device thereof and O L ED display device |
| CN109676939A (en) * | 2019-02-12 | 2019-04-26 | 长沙越联精密成型制品有限公司 | Steel disc automatic gluing device inside automobile waist linear sealing item |
| CN111168788A (en) * | 2020-01-14 | 2020-05-19 | 竺玉贞 | Environment-friendly plywood processing is with controllable formula adhesive deposite device of rubber coating volume |
| CN111570176A (en) * | 2020-04-24 | 2020-08-25 | 新疆红旗坡农业发展集团有限公司 | Automatic accurate high-efficient system of filming of fruit wax |
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