WO2018000971A1 - 封框胶涂布方法及装置 - Google Patents

封框胶涂布方法及装置 Download PDF

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Publication number
WO2018000971A1
WO2018000971A1 PCT/CN2017/084325 CN2017084325W WO2018000971A1 WO 2018000971 A1 WO2018000971 A1 WO 2018000971A1 CN 2017084325 W CN2017084325 W CN 2017084325W WO 2018000971 A1 WO2018000971 A1 WO 2018000971A1
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WIPO (PCT)
Prior art keywords
coating
coated
sub
frame
display panel
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Application number
PCT/CN2017/084325
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English (en)
French (fr)
Inventor
陈帅
包日玛
陈卓
郭剑伟
高明明
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/569,368 priority Critical patent/US20180221903A1/en
Publication of WO2018000971A1 publication Critical patent/WO2018000971A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
    • B05B13/041—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0426—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved along a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/025—Processes for applying liquids or other fluent materials performed by spraying using gas close to its critical state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels
    • H01J2329/86—Vessels
    • H01J2329/867—Seals between parts of vessels
    • H01J2329/8675—Seals between the frame and the front and/or back plate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants

Definitions

  • the present disclosure relates to the field of display device manufacturing technologies, and in particular, to a frame sealant coating method and device.
  • the existing coater has a limited shape of the sealable outline of the sealant when the sealant is applied.
  • the existing coater can only apply the horizontal and vertical pattern shapes, and the pattern shapes can be, for example, "one" shape (one shape), "L” shape (L shape), “ ⁇ ”. Shape (n-shaped) and "mouth” (rectangular). For irregular rectangular display panels, these coated sealant patterns do not have good sealing performance.
  • the uniform coating method is generally adopted, and the width of the sealant applied on the display panel is the same, but in reality, different areas on the display panel are The width requirements of the sealant are different.
  • the four-sided area and the four-cornered area of the display panel may have different requirements for the width of the sealant.
  • the bonding strength of the sealant is related to the width of the sealant coating. The wider the width of the sealant, the greater the bond strength. Conversely, the narrower the sealant is, the smaller the bond strength is.
  • the four-corner area is more likely to cause peeling than the four-sided area, so the bonding strength of the four-corner area to the sealant is higher than that of the four-sided area. Therefore, the width of the frame sealant in the four corner areas of the display panel is wider than the width of the frame sealant in the four-sided area.
  • the purpose of the present disclosure is to provide a sealant coating method and apparatus for coating a sealant profile having different shapes to achieve flexible and diverse coating of the sealant.
  • an embodiment of the present disclosure provides a sealant coating method, including:
  • the sealing area to be coated is divided into different sealing materials to be coated, and the sealing part to be coated includes a linear sealing frame. a coating coated sub-area and an arc-shaped sealing frame to be coated with a sub-area;
  • the sealant-coated sub-region is coated based on a coating command for each frame of the gel-coated sub-region.
  • respectively determining a coating instruction for each of the frame rubber coating sub-regions includes: coating the sub-regions for different sealing materials, determining the display
  • the moving speed, the moving direction and the moving distance of the panel determine the moving speed, the moving direction and the moving distance of the nozzle, the moving direction of the display panel and the moving direction of the head are perpendicular to each other, and the nozzle is used for spraying the frame sealant To the surface of the display panel.
  • determining the moving speed of the display panel and the moving speed of the showerhead for different frame sealing rubber coating sub-areas includes: setting a moving speed of the display panel for the linear sealing glue to be coated sub-region At least one of the moving speeds of the heads is a constant speed; at least one of the moving speed of the display panel and the moving speed of the head is set to accelerate or decelerate for the arc-shaped framed rubber to be coated.
  • both the moving speed of the display panel and the moving speed of the showerhead are set to be uniform.
  • one of the moving speed of the display panel and the moving speed of the head is set to a uniform speed for the linear type of seal-coated sub-region to be coated, and the other is zero.
  • the coating instructions for each of the seal-coated sub-regions for each of the seal-coated sub-regions respectively include: coating the sub-regions for different seals , determine the dispensing speed of the nozzle.
  • the coating instructions for each of the frame-coated glue-coated sub-areas for each of the frame-sealing glue-coated sub-areas further include: coating the sub-area for the linear-type frame-sealing glue Determining the moving direction and moving distance of the display panel, and the moving direction and moving distance of the head based on the starting point coordinates of each sub-area and the relative coordinates of the ending point relative to the starting point of the sub-area; a sub-area, determining a moving direction of the display panel based on a starting point coordinate of each sub-area and a relative coordinate of an end point relative to a starting point of the sub-area and a relative coordinate of at least one passing point on the arc-shaped capping-coated sub-area And moving distance, as well as the moving direction and moving distance of the nozzle.
  • the method further comprises: determining the display panel seal a reference coordinate system of the frame rubber to be coated; in the reference coordinate system, the linear frame sealant coating sub-area is further divided into: a horizontal line sealing plastic to be coated sub-area, a vertical line sealing plastic The coated sub-area and the diagonal line seal the coated sub-area.
  • the sealant coating method may further include: coating the sealable coating sub-region on the coating instruction according to each frame of the coating sub-region At the same time, the nozzle is controlled to move up and down in a direction perpendicular to the plane of the display panel, and the distance between the nozzle and the surface of the display panel is kept constant.
  • the coating of the seal-coated coating sub-area according to the coating instruction of each of the frame-coated coating sub-areas includes: storing each frame of the glue to be coated The coating command of the sub-area continuously coats the seal-on-coating sub-region continuously without interruption according to the stored coating command.
  • the different frame-sealing gel-coated sub-regions obtained by dividing the seal-coated glue-coated region are connected to each other to form a closed pattern, and the first coated first-coated rubber to be coated is first coated.
  • the coating start point of the region and the coating end point of the last coated final seal rubber to be coated sub-region do not coincide, and the coating end point passes over the coating starting point.
  • the present disclosure also provides a sealant coating device, the coating device comprising:
  • the sub-area dividing unit is configured to divide the sealing frame to be coated into different sealing materials to be coated according to the contour of the sealing target to be coated on the display panel, and the sealing glue to be coated
  • the sub-area includes a linear capping glue coating sub-region and an arc-shaped capping gel to be coated sub-region;
  • a coating instruction determining unit is electrically connected to the sub-area dividing unit, and is configured to respectively determine a coating instruction for each of the frame rubber to be coated sub-regions for different sealing materials to be coated;
  • a coating unit electrically connected to the coating instruction determining unit, including a platform for carrying the display panel and a coating head for fixing the shower head, wherein the coating unit is configured to coat the sub-area based on each frame of the coating Coating instructions are applied to coat the seal-coated sub-region.
  • the coating instruction determining unit comprises:
  • a speed determining module configured to apply a sub-area for different sealing frames, determine a moving speed of the display panel and a moving speed of the nozzle; and a direction and distance determining module for coating the sub-area for different sealing frames , determining the moving direction and moving distance of the display panel, And a moving direction and a moving distance of the nozzle, the moving direction of the display panel and the moving direction of the head are perpendicular to each other.
  • the sealant coating apparatus further includes a monitoring unit that monitors a distance between the showerhead and the display panel, and the monitoring unit is electrically connected to the coating unit for controlling the showerhead. Moving up and down in a direction perpendicular to the plane of the display panel to keep the distance between the nozzle and the surface of the display panel constant.
  • the frame sealant is to be coated according to different shapes of different parts of the frame to be coated.
  • the cloth area is divided into different sealing materials to be coated, and corresponding coating instructions are respectively determined for each sub-area.
  • various shapes of the sealant contours can be coated, which realizes The flexible application of frame sealant coating.
  • FIG. 1 is a schematic view of a method for coating a frame sealant according to an embodiment of the present disclosure
  • FIG. 2 is a schematic overall view of a contour of a plurality of sealing frames to be coated on a display panel according to an embodiment of the present disclosure
  • Figure 3 is a schematic view showing the outline of the sealing frame to be coated in the lower left corner of the schematic view shown in Figure 2;
  • Figure 4 is a detailed schematic view of the embodiment shown in Figure 1;
  • FIG. 5 is a schematic diagram of a sealant coating apparatus according to an embodiment of the present disclosure.
  • a method for coating a frame sealant according to an embodiment of the present disclosure includes:
  • Step 11 According to the outline of the sealing area to be coated on the display panel, the sealing area to be coated is divided into different sealing materials to be coated, and the sealing part to be coated includes a straight line. a type of sealing frame to be coated with a sub-region and an arc-type sealing frame to be coated with a sub-region;
  • Step 12 for each different frame sealing glue to be coated sub-region, respectively, each frame glue is determined a coating instruction of the sub-area to be coated;
  • Step 13 Coating the seal-coated sub-region to be coated based on a coating instruction of each of the seal-coated sub-regions.
  • the seal is to be coated according to different shapes (for example, straight contour and arc outline) of the seal-coated sub-region to be coated.
  • the area is divided into different framed glue coating sub-areas, and then corresponding coating instructions are respectively determined for each sub-area.
  • various shapes of the sealant outline can be coated, and the flexible and diversified coating of the sealant can be realized.
  • the head is mounted on the coating head of the coating device, the display panel is placed on the platform of the coating device, the platform is movable in the X direction, and the coating head is movable in the Y direction.
  • the sealant is squeezed into the pump by pressurizing with nitrogen N 2 , and the sealant is uniformly discharged through the nozzle by the screw rotation in the pump.
  • At least one of the moving speed of the display panel and the moving speed of the head is a uniform speed for the linear capping glue coating sub-area.
  • both the moving speed of the display panel and the moving speed of the showerhead can be set to a uniform speed, and in other embodiments, the display panel can be set.
  • One of the moving speed and the moving speed of the head is a constant speed, and the other side is zero. At least one of the moving speed of the display panel and the moving speed of the head is accelerated or decelerated for the arc type sealing frame to be coated.
  • the sub-area coated sub-area is based on the starting point coordinates of each sub-area, the relative coordinates of the end point relative to the starting point of the same sub-area, and the arc-shaped frame sealing glue.
  • the relative coordinates to the at least one passing point on the coated sub-area can determine the moving direction and moving distance of the display panel, and the moving direction and moving distance of the head.
  • any irregularly shaped sealing frame to be coated on the display panel it can be subdivided into a plurality of segments of arcs and straight lines connected end to end, the finer the division, the depiction of the sealing area to be coated The more precise.
  • the various shapes of the sealant contours referred to in the embodiments of the present disclosure include not only straight-line, curved, and the like, but also a sealant profile having a variable width.
  • the width of the sealant outline is mainly It is obtained by controlling the amount of discharge of the sealant.
  • the parameters affecting the amount of sealant discharge are: the size of the nozzle, the distance between the nozzle and the display panel, the moving speed of the display panel, the moving speed of the nozzle, and the rotation speed of the screw in the nozzle.
  • the width of the sealant outline is larger.
  • the size of the nozzle cannot be changed at any time (because the nozzle cannot be replaced at any time), but the distance between the nozzle and the display panel, the moving speed of the display panel, the moving speed of the nozzle, and the dispensing speed of the nozzle can be passed. Control the changes at any time by controlling the appropriate organization.
  • the coating instructions for each of the frame-coated sub-regions are further determined to include coating the sub-regions for different seals. Determining the Dispensing Speed of the Nozzle Alternatively, the separation distance between the nozzle and the display panel is determined for different sealing frames to be coated with the sub-area. In combination with the moving speed of the display panel and the moving speed of the head, the frame seal profiles having different width requirements are applied.
  • FIG. 2 is a schematic overall view showing the outline of a plurality of sealing frames to be coated on a panel.
  • the sealant coating method may include the following steps. Step 41: Place a display panel.
  • the display panel 1 is disposed on the platform, the shower head is mounted on the coating head, and the position of the display panel on the platform is adjusted by the ⁇ axis on the platform, so that the orientation of the display panel on the platform is consistent with the platform. . Only when the display panel is firmly mounted and aligned, it is possible to make the coating position correct when the sealant is coated.
  • Step 42 Determine a reference coordinate system of the sealant-coated area on the display panel, and determine an initial coating position of each of the seal-coated areas to be coated.
  • the linear sealant coating sub-area is further divided into: a horizontal line sealing glue to be coated sub-area, The vertical line seals the coated sub-area and the diagonally sealed frame to be coated with the sub-area.
  • each of the seal-coated areas 11 to be coated may also be determined according to the design size of each of the seal-coated areas to be coated 11 and the design gap between the adjacent seal-coated areas 11 to be coated.
  • Starting coating position For example, the lower left corner of the display panel 1 may be first set to the origin (0, 0) of the coordinate system, and then according to the overall size of the display panel and already set. The origin determines the position of each of the seal-coated areas 11 to be coated.
  • the starting point of the horizontal sealant coating region of the first sealant to be coated in the lower left corner is determined as the initial coating position of the sealant to be coated region, according to
  • the design gap between each frame seal rubber coating area 11 and the adjacent frame seal coating area 11 can determine the coordinates (x 1 , y 1 ) of the initial coating position relative to the origin.
  • the initial coating coordinate (x 1 , y 1 ) of the first framed rubber to be coated region for example, may be (10, 5), and the unit is mm.
  • the second frame-sealing adhesive to be coated area of the lower left corner of the display panel 1 is determined.
  • the initial coating position (x 2 , y 2 ), for example, may be (40, 5) in mm. In this way, the initial coating position of each frame is determined.
  • Determining the initial coating position of each of the seal-coated areas to be coated may be prepared for subsequent coating of the sealant.
  • Step 43 Determine a coating instruction of each of the seal-coated areas to be coated.
  • Determining the coating instruction of the frame seal rubber coating area 11 may include the following steps:
  • Step 431 According to the outline of the sealing area to be coated on the display panel, the sealing frame to be coated is divided into different sealing materials to be coated, and the sealing glue to be coated includes a linear sealing.
  • the frame is to be coated with a sub-area and an arc-type capping gel to be coated.
  • the first sealing frame for the first sealing frame to be coated area 11 of the lower left corner of the display panel 1 in FIG. 2, it is divided into four different sub-areas, which are: horizontal line frame The glue coating sub-area L1, the oblique line sealant coating sub-area L2, the vertical line sealant coating sub-area L3, and the arc-line sealant coating sub-area S1.
  • Step 432 For each different frame sealing glue coating sub-area, respectively determine a coating instruction for each frame of the rubber to be coated sub-area.
  • the coating may involve the instruction parameters comprising: the display panel spaced from the nozzle (in Gap), the moving speed of the display panel (expressed in V 1), the moving speed (V 2 in head Indicates), the dispensing speed of the nozzle (indicated by S), the coordinates of the starting point of each sub-region (expressed by x, y, and specific numerical values), and the relative coordinates of the endpoints relative to the starting point of the same sub-region (with ⁇ x 2 , ⁇ y 2 and The specific numerical value), and the relative coordinates of the passing points on the arc sub-region (expressed by ⁇ x 1 , ⁇ y 1 and ⁇ x 2 , ⁇ y 2 and specific numerical values).
  • the coating is set corresponding to the four sub-regions that have been divided into the above.
  • the parameters can be:
  • Horizontal line sealing glue to be coated sub-region L1 Gap: 25um + V1:170mm / s + V2: 0 + S: 3000pps / s + x: 10mm + y: 5mm + ⁇ x 2 : 25mm + ⁇ y 2 : 0;
  • Slant line sealing glue to be coated sub-region L2 Gap: 25um + V 1 : 170mm / s + V 2 : 227mm / s + S: 3000pps / s + x: 35mm + y: 5mm + ⁇ x 2 : -30mm + ⁇ y 2 : 40 mm;
  • Arc-blocking rubber to be coated sub-region S1 Gap: 25um + V 1 : 30mm / s (acceleration: 1500mm / s 2 ) + V 2 : 30mm / s (acceleration: 1500mm / s 2 ) + S: 3000pps / s+x: 5mm+y: 10mm+ ⁇ x 1 : 2mm+ ⁇ y 1 :-4mm+ ⁇ x 2 :5mm+ ⁇ y 2 :-5mm;
  • the radius of the arc-blocking rubber to be coated sub-region S1 is 5 mm
  • ( ⁇ x 1 , ⁇ y 1 ) is the relative position of the arc passing point relative to the starting point of the arc-sealing rubber to be coated sub-region S1.
  • the coordinates, ( ⁇ x 2 , ⁇ y 2 ), are the relative coordinates of the end point of the arc relative to the starting point of the arc-coated glue to be coated sub-region S1.
  • pps/s refers to the number of pulses per second of the servo motor in which the drive screw rotates in the head.
  • each parameter is independent, and the plus sign "+" simply means that these parameters need to be set at the same time, not the combination or superposition of the parameters.
  • Step 44 Apply the capping rubber to be coated to the coated sub-region based on a coating instruction of each of the frame-coated coating sub-regions.
  • the coating instructions for each of the boxes of the coated sub-areas may be stored first.
  • the divided capsule-coated sub-regions can be coated in succession without interruption, and the coating instructions for the mask-coated sub-regions that have been set can be applied.
  • the sub-region is glued to the next shape and width.
  • the coating instruction for the first frame seal rubber to be coated region in the lower left corner in the embodiment shown in FIG. 2 can be applied to the remaining eight frame seal rubber to be coated regions on the display panel 1 without Reset the coating command.
  • the coating can be applied in the following coating sequence: horizontal line sealant coating sub-area L1-slant line sealant coated sub-area L2-vertical line sealant Coating Sub-region L3-arc sealant coating sub-region S1.
  • the nozzle when coating the seal-on-coating sub-region, can be controlled to move up and down in a direction perpendicular to a plane of the display panel to maintain the showerhead and the display panel.
  • the separation distance of the surface is constant. A pattern has been formed on the surface of the display panel, and thus the surface of the display panel may be uneven.
  • the separation distance between the nozzle and the display panel (indicated by Gap), the moving speed of the display panel, the moving speed of the nozzle, the dispensing speed of the nozzle, etc., can affect the discharge amount of the sealant and further affect The width of the applied sealant, and thus, by keeping the distance between the shower head and the surface of the display panel substantially constant, the width of the applied sealant can be mainly determined by the moving speed of the display panel, The moving speed of the nozzle and the dispensing speed of the nozzle facilitate the control of the width of the sealant. It should be noted that the above steps 41 and 42 do not have to be before step 43, but step 43 may be performed first, and then step 41 and step 42 may be performed. At the same time, the order of steps 41 and 42 can also be interchanged.
  • the different frame-sealing gel-coated sub-regions obtained by dividing the sealant-coated region are connected to each other to form a closed pattern, and the first coated first-coated glue to be coated.
  • the coating start point of the region and the coating end point of the last coated final seal rubber to be coated sub-region do not coincide, and the coating end point passes over the coating starting point.
  • the seal-coated region to be coated to form a contour which is completely joined without voids after coating. For example, as shown in FIG.
  • a non-coincident coating start point and an end point are set in the sealant to be coated area, that is, a certain distance is reserved between the start point and the end point, and the coating end point is past the coating start point.
  • the corresponding instruction can be set using the above-described sealant coating method, and the section between the coating start point and the coating end point is coated twice.
  • the sum of the widths of the two coatings is the width of the framed rubber to be coated sub-region where the coating start point and the coating end point are located.
  • the embodiment of the present disclosure further provides a sealant coating device.
  • the sealant coating device includes:
  • the sub-area dividing unit 501 is configured to divide the sealing frame to be coated into different sealing materials to be coated according to the contour of the sealing target to be coated on the display panel, and the sealing glue to be coated
  • the cloth area includes a linear sealing frame rubber coating sub-region and an arc-shaped sealing frame rubber to be coated sub-region;
  • the coating instruction determining unit 502 is electrically connected to the sub-area dividing unit 501, and is used for coating the sub-regions for different sealing frames, and respectively determining the coating of each of the frame-coated coating sub-regions.
  • the coating unit 503 is electrically connected to the coating instruction determining unit 502, and includes a platform for carrying the display panel and a coating head for fixing the shower head, and the coating unit 503 is configured to coat the coating based on each frame.
  • the coating instruction of the sub-area coats the seal-coated coating sub-area.
  • the sub-area dividing unit 501 may include a controller for dividing a line type in the frame seal glue coating area of the display panel.
  • the controller can be implemented in a software manner, for example, the controller can include graphics processing software that can calculate the curvature and slope of the various portions of the line of the outline of the seal to be coated region, and based on identifying and determining the difference to be divided
  • the framed glue is coated with the sub-area. It can be understood that the dividing line between the different sealing glue-coated sub-areas to be divided can also be manually determined based on the outline of the sealing-coated area on the display panel.
  • the coating instruction determining unit 502 includes:
  • a speed determining module 5021 for coating a sub-area for different frame seals, determining a moving speed of the display panel and a moving speed of the head; and a direction and distance determining module 5022 for treating the different frame seals
  • the sub-region is coated to determine a moving direction and a moving distance of the display panel, and a moving direction and a moving distance of the head.
  • the moving direction of the display panel and the moving direction of the head are perpendicular to each other.
  • the above-mentioned sealant coating apparatus may further include a monitoring unit 504 that monitors a distance between the head and the display panel, and a memory 505.
  • the monitoring unit 504 is electrically connected to the coating unit 503, and the nozzle is controlled to move up and down in a direction perpendicular to the plane of the display panel based on the detection information of the monitoring unit 504 to maintain the distance between the nozzle and the display panel. constant.
  • the memory 505 is electrically connected to the coating command setting unit 503 for storing all preset coating commands. Examples of monitoring unit 504 include, but are not limited to, laser range finder, infrared range finder, digital vernier caliper, and the like.
  • the frame sealant coating device provided by the present disclosure can be used to implement the above-mentioned frame sealant coating method, and can apply various sealant coating regions with different shapes and widths to realize the sealant coating. Flexible and diverse.

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Abstract

一种封框胶涂布方法，包括：根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域（11）；针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令（12）；基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布（13）。用于上述封框胶涂布方法的装置，包括子区域划分单元（501），涂布指令确定单元（502）和涂布单元（503）。

Description

封框胶涂布方法及装置
相关申请的交叉引用
本申请要求于2016年6月30日向中国专利局提交的专利申请201610509762.3的优先权利益，并且在此通过引用的方式将该在先申请的内容并入本文。
技术领域
本公开涉及显示装置制造技术领域，尤其涉及一种封框胶涂布方法及装置。
背景技术
随着科技的发展，需要应用于显示装置的封框胶的轮廓形状越来越多样化。但是，现有的涂布机在进行封框胶的涂布时，可涂布的封框胶轮廓的形状有限。一方面，现有的涂布机只能对横平竖直的图案形状进行涂覆，这些图案形状例如可以是“一”形(一字型)、“L”形(L形)、“П”形(n字形)和“口”形(矩形)。对于非规则的矩形的显示面板，这些经过涂覆形成的封框胶图案不具备良好的封框性能。
另一方面，现有的涂布机在进行封框胶的涂布时，一般采用均匀涂布方式，显示面板上涂布的封框胶宽度都一样，但实际上，显示面板上不同区域对封框胶的宽度要求是不同的。
例如，显示面板四边区域和四角区域可具有对封框胶的宽度方面的不同要求。封框胶的粘结强度与封框胶涂布宽度有关，封框胶的宽度越宽，则粘结强度越大，反之，封框胶的宽度越窄，粘结强度越小。而四角区域相对于四边区域较容易导致剥离，故四角区域对封框胶的粘结强度要高于四边区域对封框胶的粘结强度。所以，显示面板的四角区域对封框胶的宽度要宽于四边区域对封框胶的宽度。
公开内容
本公开的目的在于提供一种封框胶涂布方法及装置，用于涂布具有不同形状的封框胶轮廓，以实现封框胶涂布的灵活多样化。
一方面，本公开的实施例提供了一种封框胶涂布方法，包括：
根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令；
基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
在一些实施例中，针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令包括：针对不同的封框胶待涂布子区域，确定显示面板的移动速度、移动方向和移动距离，确定喷头的移动速度、移动方向和移动距离，所述显示面板的移动方向和喷头的移动方向相互垂直，所述喷头用于喷出所述封框胶至显示面板的表面。
在一些实施中，针对不同的封框胶待涂布子区域，确定显示面板的移动速度和喷头的移动速度包括：针对直线型封框胶待涂布子区域，设定显示面板的移动速度和喷头的移动速度中的至少一方为匀速；针对弧线型封框胶待涂布子区域，设定所述显示面板的移动速度和喷头的移动速度中至少一方为加速或减速。
在一些实施例中，针对直线型封框胶待涂布子区域，设定所述显示面板的移动速度和喷头的移动速度二者均为匀速。
在另一些实施例中，针对直线型封框胶待涂布子区域，设定显示面板的移动速度和喷头的移动速度中的一方为匀速，另一方为零。
在一些实施例中，所述针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令还包括：针对不同的封框胶待涂布子区域，确定喷头的出胶速度。
在一些实施例中，所述针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令还包括：针对直线型封框胶待涂布子区域，基于各子区域的始点坐标和相对于该子区域的始点的终点相对坐标，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离；针对弧线型封框胶待涂布子区域，基于各子区域的始点坐标和相对于该子区域的始点的终点相对坐标和弧线型封框胶待涂布子区域上的至少一个经过点的相对坐标，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离。
在一些实施例中，在所述针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令之前，所述方法还包括：确定显示面板上封框胶待涂布区域的参考坐标系；在所述参考坐标系下，将直线型封框胶涂布子区域进一步划分为：横线封框胶待涂布子区域、竖线封框胶待涂布子区域和斜线封框胶待涂布子区域。
在一些实施例中，封框胶涂布方法还可包括：在所述根据每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布的同时，控制所述喷头在与显示面板所在平面垂直的方向上上下移动，保持所述喷头与所述显示面板表面的间隔距离不变。
在一些实施例总，，所述根据每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布包括：存储每一封框胶待涂布子区域的涂布指令，根据存储的涂布指令，连续不间断地对所述封框胶待涂布子区域进行涂布。
在一些实施例中，通过对封框胶待涂布区域划分得到的不同的封框胶待涂布子区域彼此连接形成封闭的图案，最先被涂布的第一封框胶待涂布子区域的涂布起点和最后被涂布的最后封框胶待涂布子区域的涂布终点不重合，并且所述涂布终点越过所述涂布起点。
另一方面，基于上述封框胶涂布方法，本公开还提供了一种封框胶涂布装置，该涂布装置包括：
子区域划分单元，用于根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
涂布指令确定单元，与子区域划分单元电连接，用于针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令；
涂布单元，与涂布指令确定单元电连接，包括用于承载显示面板的平台和用于固定喷头的涂布头，所述涂布单元用于基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
在一些实施例中，涂布指令确定单元包括：
速度确定模块，用于针对不同的封框胶待涂布子区域，确定显示面板的移动速度和喷头的移动速度；和方向和距离确定模块，用于针对不同的封框胶待涂布子区域，确定显示面板的移动方向和移动距离、 以及喷头的移动方向和移动距离，所述显示面板的移动方向和喷头的移动方向相互垂直。
此外，在一些实施例中，所述的封框胶涂布装置还包括监测喷头与显示面板间隔距离的监测单元，所述监测单元与所述涂布单元电连接，用于控制所述喷头在与显示面板所在平面垂直的方向上上下移动，以保持所述喷头与所述显示面板表面的间隔距离不变。
本公开提供的封框胶涂布方法及装置中，根据显示面板上封框胶待涂布区域的总体轮廓，基于封框胶待涂布区域的不同部分的不同形状，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，对应每个子区域分别确定相应的涂布指令，通过分区域细化，可以涂布出各种形状可变化的封框胶轮廓，实现了封框胶涂布的灵活多样化。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本发明公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例提供的封框胶涂布方法的示意图；
图2为本公开实施例中显示面板上多个封框胶待涂布区域轮廓的整体示意图；
图3为图2所示示意图中左下角的封框胶待涂布区域轮廓的示意图；
图4为图1所示实施例的详细示意图；
图5为本公开实施例提供的封框胶涂布装置的示意图。
具体实施方式
为便于理解，下面结合说明书附图，对本公开实施例提供的封框胶涂布方法进行详细描述。
请参阅图1，本公开实施例提供的封框胶涂布方法包括：
步骤11、根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
步骤12、针对不同的封框胶待涂布子区域，分别确定每一封框胶 待涂布子区域的涂布指令；
步骤13、基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
在上述实施例中，根据显示面板上封框胶待涂布区域的总体轮廓，按照封框胶待涂布子区域的不同形状(例如，直线轮廓和弧线轮廓)将封框胶待涂布区域划分为不同的封框胶待涂布子区域，然后对应每个子区域分别确定相应的涂布指令。这样，通过分区域细化，可以涂布出各种形状的封框胶轮廓，实现了封框胶涂布的灵活多样化。
在实际涂布时，喷头安装在涂布装置的涂布头上，显示面板放置在涂布装置的平台上，平台能够沿X方向移动，涂布头能够沿Y方向移动。涂布时，由氮气N2加压将封框胶挤入泵中，并通过泵内的螺杆旋转将封框胶经喷头均匀吐出。通过控制显示面板的移动速度和喷头的移动速度，可以涂布出直线型或弧线型的封框胶轮廓。
例如，针对直线型封框胶待涂布子区域，所述显示面板的移动速度和喷头的移动速度中的至少一方为匀速。在一些实施例中，针对直线型封框胶待涂布子区域，可以将显示面板的移动速度和喷头的移动速度二者设定为匀速，在另一些实施例中，可以设定显示面板的移动速度和喷头的移动速度中的一方为匀速，另一方为零。针对弧线型封框胶待涂布子区域，所述显示面板的移动速度和喷头的移动速度中至少一方为加速或减速。
在一些实施例中，根据两点确定一条直线的原理，针对直线型的封框胶待涂布子区域，基于各子区域的始点坐标和相对于该子区域的始点的终点相对坐标，可以确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离。根据三点确定一圆弧的原理，针对弧线型封框胶待涂布子区域，基于各子区域的始点坐标、相对于同一子区域的始点的终点相对坐标和弧线型封框胶待涂布子区域上的至至少一个经过点的相对坐标，可以确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离。对于显示面板上的任意不规则形状的封框胶待涂布区域而言，可以将其细分成多段首尾相连的弧线和直线，划分得越细，对封框胶待涂布区域的描绘越精确。本公开实施例所指的各种形状可变化的封框胶轮廓，不仅包括直线型、弧线型等封框胶轮廓，还包括宽度可变化的封框胶轮廓。封框胶轮廓的宽度主要 通过控制封框胶的吐出量而得到。影响封框胶吐出量的参数主要有：喷头尺寸、喷头与显示面板的间隔距离、显示面板的移动速度、喷头的移动速度、喷头中螺杆的旋转速度等。在上述参数中，喷头与显示面板的间隔距离越小、显示面板的移动速度和喷头的移动速度越慢、喷头的出胶速度越快，封框胶的吐出量越大，所涂布出的封框胶轮廓的宽度越大。在涂布开始后，喷头的尺寸不能随时变更(因为不能随时更换喷头)，但是喷头与显示面板的间隔距离、显示面板的移动速度、喷头的移动速度、喷头的出胶速度等参数则可以通过控制相应的机构而随时调节变更。
因此，在一些实施例中，在针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令还包括针对不同的封框胶待涂布子区域，确定喷头的出胶速度替代性地，针对不同的封框胶待涂布子区域，确定喷头与显示面板的间隔距离。以此与显示面板的移动速度和喷头的移动速度结合，涂布具有不同宽度要求的封框胶轮廓。
下面，结合图4和图2详细介绍图1所示实施例的封框胶涂布方法。图2为显示面板上多个封框胶待涂布区域轮廓的整体示意图。在图2所示的显示面板1上，将要涂布9个封框胶待涂布区域11。每个封框胶待涂布区域11的轮廓均为直角三角形，且在直角处采用圆弧过渡。针对图2所示的封框胶待涂布区域，封框胶涂布方法可包括如下步骤。步骤41、放置显示面板。将显示面板1设置在平台上、喷头安装在涂布头上，并通过平台上的θ轴调节显示面板在所述平台上的位置，使得显示面板在平台上的取向与平台一致。。只有将显示面板稳固地安装并对正，才可能在封框胶涂布时使得涂布的位置正确。
步骤42、确定显示面板上封框胶涂布区域的参考坐标系，并确定每个封框胶待涂布区域的起始涂布位置。在确定显示面板上封框胶涂布区域的参考坐标系之后，在所述参考坐标系下，将直线型封框胶涂布子区域进一步划分为：横线封框胶待涂布子区域、竖线封框胶待涂布子区域和斜线封框胶待涂布子区域。
确定参考坐标系之后，还可以依据每个封框胶待涂布区域11的设计尺寸和相邻封框胶待涂布区域11之间的设计间隙确定每个封框胶待涂布区域11的起始涂布位置。例如，可以首先将显示面板1的左下角设定为坐标系的原点(0，0)，之后根据显示面板的总体尺寸和已经设定 的原点确定每个封框胶待涂布区域11的位置。
例如，在图2中，首先确定左下角第一个封框胶待涂布区域的横线封框胶涂布子区域的起点为该封框胶待涂布区域的起始涂布位置，根据每个封框胶待涂布区域11的设计尺寸和相邻封框胶待涂布区域11之间的设计间隙可以确定该起始涂布位置相对于原点的坐标(x1，y1)，并以此作为该第一个封框胶待涂布区域的起始涂布坐标(x1，y1)，例如，可以为(10，5)，单位为mm。之后，根据该封框胶待涂布区域的设计尺寸和其与下一个封框胶待涂布区域之间的设计间隙，确定显示面板1左下角第二个封框胶待涂布区域的起始涂布位置(x2，y2)，例如，可以为(40，5)，单位为mm。以此方法类推，确定每个封框的起始涂布位置。
确定每个封框胶待涂布区域的起始涂布位置，可以为后续进行封框胶的涂布做准备。
步骤43、确定每个封框胶待涂布区域的涂布指令。
由于在图2中每个封框胶待涂布区域11的形状均相同，因此仅以显示面板1上左下角第一个封框胶待涂布区域11为例进行说明。确定该封框胶待涂布区域11的涂布指令可包括如下步骤：
步骤431、根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区划分为不同的封框胶待涂布子区域，封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域。
例如，如图3所示，对于图2中显示面板1左下角的第一个封框胶待涂布区域11而言，将其划分成四个不同的子区域，分别是：横线封框胶涂布子区域L1、斜线封框胶涂布子区域L2、竖线封框胶涂布子区域L3和弧线封框胶涂布子区域S1。
步骤432、针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令。
在这一步骤中，所述涂布指令可以牵涉的参数包括：喷头与显示面板的间隔距离(以Gap表示)、显示面板的移动速度(以V1表示)、喷头的移动速度(以V2表示)、喷头的出胶速度(以S表示)、各子区域始点坐标(以x、y和具体的数值表示)、相对于同一子区域的始点的终点相对坐标(以Δx2、Δy2和具体的数值表示)、以及弧线子区域上的经过点的相对坐标(以Δx1、Δy1和Δx2、Δy2和具体的数值表示)。
举例而言，分别对应上述已经划分成的四个子区域，设定的涂布 参数可分别为：
横线封框胶待涂布子区域L1：Gap：25um+V1：170mm/s+V2：0+S：3000pps/s+x：10mm+y：5mm+Δx2：25mm+Δy2：0；
斜线封框胶待涂布子区域L2：Gap：25um+V1：170mm/s+V2：227mm/s+S：3000pps/s+x：35mm+y：5mm+Δx2：-30mm+Δy2：40mm；
竖线封框胶待涂布子区域L3：Gap：25um+V1：0+V2：227mm/s+S：3000pps/s+x：5mm+y：45mm+Δx2：0+Δy2：-35mm；
弧线封框胶待涂布子区域S1：Gap：25um+V1：30mm/s(加速度：1500mm/s2)+V2：30mm/s(加速度：1500mm/s2)+S：3000pps/s+x：5mm+y：10mm+Δx1：2mm+Δy1：-4mm+Δx2：5mm+Δy2：-5mm；
在该实施例中，弧线封框胶待涂布子区域S1的半径为5mm，(Δx1，Δy1)为圆弧经过点相对于弧线封框胶待涂布子区域S1始点的相对坐标，(Δx2，Δy2)为圆弧终点相对于弧线封框胶待涂布子区域S1始点的相对坐标。
上述各涂布参数中，pps/s指的是喷头中驱动螺杆旋转的伺服电机每秒的脉冲数。并且上述各涂布指令中，实际上各个参数是独立的，加号“+”只是表示同时需要设置这些参数，并非是参数的联合或叠加。
步骤44、基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
在一些实施例中，可以首先存储每一封框胶待涂布子区域的涂布指令。这样，可以连续不中断地依次对划分成的各个封框胶待涂布子区域进行涂布，而且，可以将已经设定好的针对某一封框胶待涂布子区域的涂布指令应用于下一个形状和宽度相同封框胶待涂布子区域。例如，针对图2所示的实施例中的左下角的第一个封框胶待涂布区域的涂布指令可以应用于显示面板1上的其余八个封框胶待涂布区域，而不必重新设定涂布指令。
对于图3所示封框胶待涂布区域，可以按以下涂布顺序进行涂布：横线封框胶涂布子区域L1-斜线封框胶涂布子区域L2-竖线封框胶涂布 子区域L3-弧线封框胶涂布子区域S1。
此外，步骤44中，在对所述封框胶待涂布子区域进行涂布时，可以控制所述喷头在与显示面板所在平面垂直的方向上上下移动，保持所述喷头与所述显示面板表面的间隔距离不变。显示面板的表面上已经形成有图形，因此显示面板的表面可能是凹凸不平的。如前所述，喷头与显示面板之间的间隔距离(以Gap表示)、显示面板的移动速度、喷头的移动速度、喷头的出胶速度等可能够影响封框胶的吐出量，并进而影响所涂布的封框胶的宽度，因而，通过保持所述喷头与所述显示面板表面的间隔距离基本不变，可以使得所涂布的封框胶的宽度主要取决于显示面板的移动速度、喷头的移动速度、喷头的出胶速度，方便对封框胶的宽度的控制。需要说明的是，上述步骤41和步骤42不是必须在步骤43之前，也可以先执行步骤43，之后再执行步骤41和步骤42。同时，步骤41和步骤42的顺序也可以互换。
在一些实施例中，通过对封框胶涂布区域进行划分得到的不同的封框胶待涂布子区域彼此连接形成封闭的图案，最先被涂布的第一封框胶待涂布子区域的涂布起点和最后被涂布的最后封框胶待涂布子区域的涂布终点不重合，并且所述涂布终点越过所述涂布起点。由此，，可以使封框胶待涂布区域在涂布后能够形成完全接合不留空隙的轮廓。例如，图图3所示，在封框胶待涂布区域中设置非重合的涂布始点和终点，即在始点和终点之间预留一定的距离，并且涂布终点越过所述涂布起点。对于涂布起点和涂布终点之间的区域，可以使用上述的封框胶涂布方法设定相应的指令，对涂布起点和涂布终点之间的这一段区域进行两次涂布，使得两次涂布的宽度之和为涂布起点和涂布终点所在的封框胶待涂布子区域的宽度。
除了上述的封框胶涂布方法，本公开实施例还提供了一种封框胶涂布装置，如图5所示，该封框胶涂布装置包括：
子区域划分单元501，用于根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
涂布指令确定单元502，与子区域划分单元501电连接，用于针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂 布指令；
涂布单元503，与涂布指令确定单元502电连接，包括用于承载显示面板的平台和用于固定喷头的涂布头，所述涂布单元503用于基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
子区域划分单元501可包括用于在显示面板的封框胶待涂布区域划分线型的控制器。控制器可以软件的方式实现，例如，控制器可包括图形处理软件，其能够计算封框胶待涂布区域的轮廓的线条的各个部分的曲率和斜率，并基于识别和确定出要划分的不同的封框胶待涂布子区域。能够理解的是，也可以基于显示面板上封框胶待涂布区域的轮廓，采用人工方式确定出要划分的不同的封框胶待涂布子区域之间的分割线。
在图5的示例中，所述涂布指令确定单元502包括：
速度确定模块5021，其用于针对不同的封框胶待涂布子区域，确定显示面板的移动速度和喷头的移动速度；和方向和距离确定模块5022，其用于针对不同的封框胶待涂布子区域，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离，所述显示面板的移动方向和喷头的移动方向相互垂直。
此外，上述封框胶涂布装置还可包括监测喷头与显示面板间隔距离的监测单元504以及存储器505。监测单元504与所述涂布单元503电连接，喷头基于监测单元504的检测信息而被控制成在与显示面板所在平面垂直的方向上上下移动，以保持所述喷头与所述显示面板间隔距离不变。所述存储器505与所述涂布指令设定单元503电连接，用于存储预设的全部涂布指令。监测单元504的示例包括但不限于激光测距器，红外测距器，数显游标卡尺等。
本公开随提供的封框胶涂布装置能够用来实现上述封框胶涂布方法，可以涂布出各种形状和宽度可变化的封框胶涂布区域，实现了封框胶涂布的灵活多样化。
对于在上述的各个实施例中描述的具体特征、结构、材料或者特点可以以任何适当的方式组合而形成另外的实施例。
以上所述，仅为本发明的一些示例性的实施例，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的 技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种封框胶涂布方法，包括：
    根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
    针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令；
    基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
  2. 根据权利要求1所述的封框胶涂布方法，其中所述针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令包括：
    针对不同的封框胶待涂布子区域，确定显示面板的移动速度、移动方向和移动距离，确定喷头的移动速度、移动方向和移动距离，所述显示面板的移动方向和喷头的移动方向相互垂直，所述喷头用于喷出所述封框胶至显示面板的表面。
  3. 根据权利要求2所述的封框胶涂布方法，其中针对不同的封框胶待涂布子区域，确定显示面板的移动速度和喷头的移动速度包括：
    针对直线型的封框胶待涂布子区域，设定所述显示面板的移动速度和喷头的移动速度中的至少一方为匀速；
    针对弧线型的封框胶待涂布子区域，设定所述显示面板的移动速度和喷头的移动速度中至少一方为加速或减速。
  4. 根据权利要求3所述的封框胶涂布方法，其中，针对直线型封框胶待涂布子区域，设定所述显示面板的移动速度和喷头的移动速度二者均为匀速。
  5. 根据权利要求3所述的封框胶涂布方法，其中，针对直线型封框胶待涂布子区域，设定显示面板的移动速度和喷头的移动速度中的一方为匀速，另一方为零。
  6. 根据权利要求2所述的封框胶涂布方法，其中针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令还包括：
    针对不同的封框胶待涂布子区域的宽度，确定喷头的出胶速度。
  7. 根据权利要求2所述的封框胶涂布方法，其中述针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令还包括：
    针对直线型封框胶待涂布子区域，基于各子区域的始点坐标和相对于该子区域的始点的终点的相对坐标，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离；
    针对弧线型封框胶待涂布子区域，基于各子区域的始点坐标、相对于该子区域的始点的终点的相对坐标和弧线型封框胶待涂布子区域上的至少一个经过点的相对坐标，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离。
  8. 根据权利要求1-7任一项所述的封框胶涂布方法，其中在针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令之前，所述方法还包括：
    确定显示面板上封框胶待涂布区域的参考坐标系；
    在所述参考坐标系下，将直线型封框胶涂布子区域进一步划分为：横线封框胶待涂布子区域、竖线封框胶待涂布子区域和斜线封框胶待涂布子区域。
  9. 根据权利要求2-7任一项所述的封框胶涂布方法，其中所述方法还包括：
    在根据每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布的同时，控制所述喷头在与显示面板所在平面垂直的方向上上下移动，保持所述喷头与所述显示面板表面的间隔距离不变。
  10. 根据权利要求1-7任一项所述的封框胶涂布方法，其中根据每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布包括：
    存储每一封框胶待涂布子区域的涂布指令，根据存储的涂布指令，连续不间断地对所述封框胶待涂布子区域进行涂布。
  11. 根据权利要求1-7中任一项所述的封框胶涂布方法，其中所述不同的封框胶待涂布子区域彼此连接形成封闭的图案，其中最先被涂布的第一封框胶待涂布子区域的涂布起点和最后被涂布的最后封框胶 待涂布子区域的涂布终点不重合，并且所述涂布终点越过所述涂布起点。
  12. 一种封框胶涂布装置，包括：
    子区域划分单元，用于根据显示面板上封框胶待涂布区域的轮廓，将封框胶待涂布区域划分为不同的封框胶待涂布子区域，所述封框胶待涂布子区域包括直线型封框胶待涂布子区域和弧线型封框胶待涂布子区域；
    涂布指令确定单元，与子区域划分单元电连接，用于针对不同的封框胶待涂布子区域，分别确定每一封框胶待涂布子区域的涂布指令；
    涂布单元，与涂布指令确定单元电连接，包括用于承载显示面板的平台和用于固定喷头的涂布头，所述涂布单元用于基于每一封框胶待涂布子区域的涂布指令，对所述封框胶待涂布子区域进行涂布。
  13. 根据权利要求12所述的封框胶涂布装置，其中所述涂布指令确定单元包括：
    速度确定模块，用于针对不同的封框胶待涂布子区域，确定显示面板的移动速度和喷头的移动速度；
    方向和距离确定模块，用于针对不同的封框胶待涂布子区域，确定显示面板的移动方向和移动距离、以及喷头的移动方向和移动距离，所述显示面板的移动方向和喷头的移动方向相互垂直。
  14. 根据权利要求9或10所述的封框胶涂布装置，还包括监测喷头与显示面板间隔距离的监测单元，所述监测单元与所述涂布单元电连接，用于控制所述喷头在与显示面板所在平面垂直的方向上上下移动，以保持所述喷头与所述显示面板表面的间隔距离不变。
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