CN111451954A - Curved surface laminating tool - Google Patents

Curved surface laminating tool Download PDF

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Publication number
CN111451954A
CN111451954A CN202010260870.8A CN202010260870A CN111451954A CN 111451954 A CN111451954 A CN 111451954A CN 202010260870 A CN202010260870 A CN 202010260870A CN 111451954 A CN111451954 A CN 111451954A
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CN
China
Prior art keywords
curved surface
laminating
sub
edge
thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010260870.8A
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Chinese (zh)
Inventor
王亚明
陈立强
刘少奎
王研鑫
赵东东
李刚
王作家
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN202010260870.8A priority Critical patent/CN111451954A/en
Publication of CN111451954A publication Critical patent/CN111451954A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding

Abstract

The invention discloses a curved surface fitting jig which comprises a fitting mold and a rigid base, wherein the fitting mold and the rigid base are oppositely jointed; the conformable mold has a middle region and an edge region surrounding the middle region, the edge region having a thickness less than a thickness of the middle region. In the curved surface laminating jig provided by the invention, the thickness of the edge area of the laminating mold is smaller than that of the middle area, and the laminating mold is in butt joint with the rigid base, so that the pressure of the flat area of the laminating surface can be effectively reduced, the pressure of the convex curved surface at the edge of the laminating surface is increased, the pressure distribution of the convex curved surface is more uniform, bubble-free laminating of the flexible panel and the curved surface cover plate is realized, and the product yield is improved.

Description

Curved surface laminating tool
Technical Field
The invention relates to the technical field of display product manufacturing, in particular to a curved surface fitting jig.
Background
With the development of display industry technology and the higher requirements of people on portable display devices such as mobile phones and computers, the development and manufacturing of display screens with fixed curved surfaces have become the most mainstream trend in the panel industry.
At present, a silicone jig is adopted to attach Panel (a display Panel, such as a flexible display Panel) to CG (Curved Glass) through adhesive glue, and the hardness and the shape of the silicone jig play an important role in the attaching effect.
Because the contact between the Panel and the CG is that the middle plane part and the edge curved part are simultaneously contacted, the contact pressure between the Panel and the CG edge curved part is smaller than that of the middle plane part, and air bubbles are difficult to be effectively discharged to the edge in the attaching process. If in the pressurization process of the silica gel jig, the edge pressure is not enough, bubbles appear at the edge, or the pressure at the edge reaches the expected value, the attached plane area bears great pressure, and the packaging layer is damaged.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a curved surface fitting jig.
The invention provides a curved surface fitting jig, which comprises: the laminating die comprises a flat laminating surface and a peripheral side surface connected with the laminating surface, and the joint of the laminating surface and the peripheral side surface is a convex curved surface;
the conformable mold has a middle region and an edge region surrounding the middle region, the edge region having a thickness less than a thickness of the middle region.
Preferably, the peripheral side surface comprises a plurality of side surfaces connected in sequence, the edge region comprises a plurality of sub-edge regions, and each sub-edge region corresponds to each side surface one to one;
in the width direction of the corresponding side surface of the sub-edge area, the thickness of the two ends of the sub-edge area is less than or equal to that of other parts of the sub-edge area.
Preferably, the thickness of the sub-edge region decreases in a step shape from the middle part to both ends in the width direction of the corresponding side surface of the sub-edge region.
Preferably, the sub-edge regions have thicknesses gradually decreasing from the middle portion to both ends in the width direction of the corresponding side surface.
Preferably, the side surface has a concave shape in cross section in the height direction thereof, and the side surface has a concave shape in longitudinal section in the width direction thereof.
Preferably, the cross section of the side surface in the height direction is in an arc concave shape or is in a step shape from two ends to the middle.
Preferably, the cross section of the side surface in the width direction is in an arc concave shape or two ends of the side surface are in a step shape and concave towards the middle.
Preferably, the laminating mould still include with the bottom that the binding face is relative, rigid base has open appearance chamber, the shape of laminating mould bottom with the shape complete adaptation laminating of appearance chamber.
Preferably, the attaching mold further has a flat outer bottom surface, and the outer bottom surface is parallel to the attaching surface.
Compared with the prior art, the curved surface attaching jig provided by the embodiment of the invention has the advantages that the thickness of the edge area of the attaching mold is smaller than that of the middle area, and the attaching mold is in butt joint with the rigid base, so that the pressure of the flat area of the attaching surface can be effectively reduced, the pressure of the convex curved surface at the edge of the attaching surface is increased, the pressure distribution of the convex curved surface is more uniform, bubble-free attaching of the flexible panel and the curved surface cover plate is realized, and the product yield is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic view of a structure for attaching a silicone jig in the prior art;
fig. 2 is a schematic structural view of a curved surface bonding jig according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a bonding mold of a curved surface bonding jig according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rigid base of a curved surface bonding fixture according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a portion of the curved surface bonding jig corresponding to the first sub-edge region in the direction a according to the first embodiment of the present invention;
fig. 6 is another schematic cross-sectional view of a portion of the curved surface bonding jig corresponding to the first sub-edge region in the direction a according to the first embodiment of the present invention;
fig. 7 is another schematic cross-sectional view of a portion of the curved surface bonding jig corresponding to the first sub-edge region in the direction a according to the first embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a portion of the curved surface bonding tool corresponding to the first sub-edge region in the direction a according to the first embodiment of the invention;
FIG. 9 is a schematic view of a first side of the present invention;
FIG. 10 is a schematic cross-sectional view taken along line C-C of FIG. 9;
FIG. 11 is a schematic cross-sectional view taken along line D-D of FIG. 9;
FIG. 12 is a schematic cross-sectional view taken along line E-E of FIG. 9;
fig. 13 is a schematic structural view of a bonding mold of a curved surface bonding jig according to a second embodiment of the present invention;
fig. 14 is a schematic structural view of a rigid base of a curved surface bonding fixture according to a second embodiment of the present invention;
fig. 15 is a schematic structural view of a bonding mold of a curved surface bonding jig according to a third embodiment of the present invention;
fig. 16 is a schematic structural diagram of a rigid base of a curved surface bonding fixture according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The curved display screen in the prior art comprises a plane fitting part and a curved surface fitting part. As shown in fig. 1, a flexible panel 102 is attached to a glass cover plate 103 through a silicone jig 101 to form a curved display screen, a flat attaching portion and a curved attaching portion of the flexible panel 102 are simultaneously in contact with the glass cover plate 103, and air bubbles are difficult to effectively discharge from an edge portion in the attaching process.
As shown in fig. 2 to 4, a curved surface fitting jig according to an embodiment of the present invention includes: the laminating die comprises a laminating die 1 and a rigid base 2 which are oppositely jointed, wherein the laminating die 1 comprises a flat laminating surface 10 and a peripheral side surface 11 connected with the laminating surface 10, and the joint of the laminating surface 10 and the peripheral side surface 11 is a convex curved surface 12; the conformable mould 1 has a middle region 13 and an edge region 14 surrounding the middle region 13, the edge region 14 having a thickness less than the thickness of the middle region 13.
In this embodiment, the attaching mold 1 further includes a bottom portion opposite to the attaching surface 10, the rigid base 2 has an open cavity and a flat outer bottom surface, the shape of the bottom portion of the attaching mold 1 is completely matched and attached to the shape of the cavity, and the outer bottom surface is parallel to the attaching surface 10.
When laminating flexible panel and curved surface glass, laminating mould 1 and rigid base 2 are relative joint, and the binding face of laminating mould is arranged in to the flexible panel, and curved surface glass arranges the flexible panel in on, through the outer bottom surface pressurization at the rigid base for the flexible panel laminates to curved surface glass. In this embodiment, the material of the bonding mold 1 may be silicone or other flexible material, and when the outer bottom surface of the rigid base is pressurized, the bonding mold 1 is compressed in the thickness direction thereof, so as to apply pressure to the flexible cover plate and the curved glass.
In the curved surface laminating tool that this embodiment provided, its marginal zone's thickness is less than the thickness of middle zone, and when pressurizeing the laminating mould, the less part of thickness is bigger to the effort of glass apron, and the pressure of contact surface is also bigger, can reduce the pressure of flat laminating part, increases the curved surface laminating part's that the convex surface corresponds pressure for the pressure distribution of convex surface department is more even, can effectively avoid the production of bubble.
In a preferred embodiment, the peripheral side surface 11 comprises a plurality of side surfaces connected in series, and the edge region 14 comprises a plurality of sub-edge regions, each sub-edge region corresponding to each side surface one by one;
in the width direction of the corresponding side surface of the sub-edge area, the thickness of the two ends of the sub-edge area is less than or equal to that of other parts of the sub-edge area.
In the embodiment of the present invention, a four-sided curved panel is taken as an example, the peripheral side 11 of the fitting mold includes two first side surfaces 111 and two second side surfaces 112 arranged oppositely, the edge region 14 includes a first sub-edge region 141 corresponding to the first side surface 111 and a second sub-edge region 142 corresponding to the second side surface 112, the thickness of the two ends of the first sub-edge region 141 does not exceed the thickness of the other parts of the first sub-edge region 141, and the thickness of the two ends of the second sub-edge region 142 does not exceed the thickness of the other parts of the second sub-edge region 142.
In this embodiment, it is preferable that the bottom surface of the first sub-margin region 141 and the bottom surface of the second sub-margin region 142 are both parallel to the attachment surface 10;
the bottom of the central region 13 protrudes beyond the bottom of the edge region 14, and preferably the bottom of the central region 13 is also parallel to the attachment surface 10. So, the thickness of marginal zone is less than the thickness of middle zone, when pressurizeing to the laminating mould, can reduce the pressure of flat laminating part, and the production of bubble can be avoided to the curved surface laminating part's that the protruding curved surface corresponds pressure, realizes the laminating of bubble-free between flexible panel and the curved surface glass, also makes things convenient for the processing design of laminating mould simultaneously.
As shown in fig. 2, the width direction of the first side surface 111 is a direction a, and the width direction of the second side surface 112 is a direction B, and the direction a and the direction B are perpendicular to each other.
Furthermore, the thickness of the sub-edge area is reduced in a step shape from the middle part to two ends in the width direction of the corresponding side surface of the sub-edge area;
alternatively, the sub-edge regions may have thicknesses that gradually decrease from the middle portion to both ends in the width direction of the corresponding side surfaces thereof.
Referring to fig. 5, the bottom surface of the first sub-edge region 141 is preferably a flat surface.
Referring to fig. 6, the first sub-edge region 141 is reduced in a step shape from the middle portion to both ends.
Referring to fig. 7, the first sub-edge region 141 is also reduced in a stepped shape from the middle portion to both ends, and the number of steps in fig. 7 is greater than that in fig. 6.
Referring to fig. 8, the first sub-edge area 141 is gradually decreased from the middle portion to both ends.
That is, the cross-sectional structure of the portion of the curved surface attaching jig corresponding to the first sub-edge region in the direction a is in any one of the forms shown in fig. 5 to 8.
Correspondingly, the cross-sectional structure of the portion of the curved surface attaching jig corresponding to the second sub-edge region in the direction B may also be in any form of fig. 5 to 8.
As an alternative embodiment, each side surface has a concave shape in cross section in the height direction thereof and each side surface has a concave shape in longitudinal section in the width direction thereof, as shown in fig. 9.
Every side all inwards caves in the intermediate position of width direction and direction of height to reduce the pressure of the intermediate position of every convex curved surface that the binding face of laminating mould is connected, improve the pressure at every convex curved surface both ends, make the curved surface laminating position stress distribution that the convex curved surface corresponds more even, with the risk that reduces the bubble that flexible panel and curved surface glass laminating in-process produced.
Furthermore, the cross section of each side surface in the height direction is arc-shaped concave, and the cross section of each side surface in the width direction is arc-shaped concave; alternatively, the first and second electrodes may be,
the cross section of each side surface in the height direction is arc-shaped concave, and the cross section of each side surface in the width direction is stepped concave from two ends to the middle; alternatively, the first and second electrodes may be,
the cross section of each side surface in the height direction is concave in a step shape from two ends to the middle, and the cross section of each side surface in the width direction is concave in an arc shape; alternatively, the first and second electrodes may be,
the cross section of each side surface in the height direction is recessed in a step shape from two ends to the middle, and the cross section of each side surface in the width direction is recessed in a step shape from two ends to the middle.
For example, taking the first side surface 111 as an example, the cross section in the height direction and the longitudinal section in the width direction are both arc-shaped and concave. A first side 111 illustrated with reference to fig. 9; FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9, wherein curve I has a radius of curvature R1; FIG. 11 is a cross-sectional view taken along line D-D of FIG. 9, wherein curve II has a radius of curvature R2; fig. 12 is a cross-sectional view taken along the direction E-E in fig. 9, and the middle portion of the curve iii in fig. 12 is recessed inward. Curvature radius R2 is greater than curvature radius R1, and the pressure that the convex curved surface department that C department corresponds is less than the pressure of the convex curved surface department of D department to the pressure of the intermediate position of the convex curved surface that first side 111 corresponds is less than the pressure at its both ends, makes the convex curved surface atress that first side 111 corresponds more even, can effectively avoid the production of laminating in-process bubble. Correspondingly, the second side surface 112 can be designed according to the structure of the first side surface 111, so that the pressure at the middle position of the convex curved surface corresponding to the second side surface 112 is smaller than the pressure at the two ends of the convex curved surface, the convex curved surface corresponding to the second side surface 112 is stressed more uniformly, and bubbles can be effectively prevented from being generated in the attaching process.
As shown in fig. 13 and 14, a second embodiment of the present invention provides a curved surface bonding jig, which includes a bonding mold 3 and a rigid base 4 that are oppositely joined, where the bonding mold 3 includes a flat bonding surface and a peripheral side surface 31 connected to the bonding surface, and a joint between the bonding surface and the peripheral side surface 31 is a convex curved surface; the conformable mould 3 has a middle region 33 and an edge region 34 surrounding the middle region 33, the edge region 34 having a thickness smaller than the thickness of the middle region 33.
Wherein, the peripheral side surface 31 includes two oppositely disposed first side surfaces 311 and two oppositely disposed second side surfaces 312, and the edge region 34 includes a first sub-edge region 341 corresponding to the first side surface 311 and a second sub-edge region 342 corresponding to the second side surface 312;
the thickness of the first sub-edge region 341 decreases from the middle to both ends in a step shape in the width direction of the first side surface 311; in the width direction of the second side surface 312, the thickness of the second sub-edge region 342 decreases from the middle to the two ends in a step shape, so that square unfilled corners 35 are formed at the four corners of the bottom of the attaching mold;
the shape of the cavity of the rigid base 4 is completely matched with the shape of the bottom of the fitting mold 3.
The structure of each side surface in the embodiment can refer to the structure design of the side surface in the embodiment I, namely, the cross section of each side surface in the height direction is in an arc concave shape or is in a step shape concave shape from two ends to the middle; the longitudinal section of each side surface in the width direction is in an arc concave shape or is in a step shape concave shape from two ends to the middle.
Referring to fig. 15 and 16, a curved surface bonding jig according to a third embodiment of the present invention includes a bonding mold 5 and a rigid base 6 that are oppositely joined, where the bonding mold 5 includes a flat bonding surface and a peripheral side surface 51 connected to the bonding surface, and a joint between the bonding surface and the peripheral side surface 51 is a convex curved surface; the conformable mold 5 has a middle region 53 and an edge region 54 surrounding the middle region 53, the edge region 54 having a thickness smaller than that of the middle region 53.
Wherein the peripheral side surface 51 comprises two oppositely disposed first side surfaces 511 and two oppositely disposed second side surfaces 512, and the edge region 54 comprises a first sub-edge region 541 corresponding to the first side surfaces 511 and a second sub-edge region 542 corresponding to the second side surfaces 512;
the thickness of the first sub-edge region 541 gradually decreases from the middle to both ends in the width direction of the first side surface 511; the second sub-edge region 542 has a thickness gradually decreasing from the middle portion to both ends in the width direction of the second side surface 512;
the shape of the cavity of the rigid base 6 is completely matched with the shape of the bottom of the fitting mold 5.
Similarly, the structure of each side surface in this embodiment may also refer to the structure design of the side surface in the first embodiment, that is, the cross section of each side surface in the height direction is concave in an arc shape or concave in a step shape from two ends to the middle; the longitudinal section of each side surface in the width direction is in an arc concave shape or is in a step shape concave shape from two ends to the middle.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the inventive concept. For example, the above features and (but not limited to) features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims (9)

1. The utility model provides a curved surface laminating tool which characterized in that includes: the laminating die comprises a flat laminating surface and a peripheral side surface connected with the laminating surface, and the joint of the laminating surface and the peripheral side surface is a convex curved surface;
the conformable mold has a middle region and an edge region surrounding the middle region, the edge region having a thickness less than a thickness of the middle region.
2. The curved surface attaching jig according to claim 1, wherein the peripheral side surface includes a plurality of side surfaces connected in sequence, the edge region includes a plurality of sub-edge regions, and each of the sub-edge regions corresponds to each of the side surfaces one to one;
in the width direction of the corresponding side surface of the sub-edge area, the thickness of the two ends of the sub-edge area is less than or equal to that of other parts of the sub-edge area.
3. The curved surface attaching jig according to claim 2, wherein the thickness of the sub-edge region is reduced in a stepwise manner from the middle portion to both ends in the width direction of the corresponding side surface.
4. The curved surface attaching jig according to claim 2, wherein the thickness of the sub-edge region is gradually reduced from the middle portion to both ends in the width direction of the corresponding side surface.
5. The curved surface attaching jig according to claim 2, wherein the side surface has a concave shape in a cross section in a height direction thereof, and the side surface has a concave shape in a longitudinal section in a width direction thereof.
6. The curved surface attaching jig according to claim 5, wherein the cross section of the side surface in the height direction thereof is curved and concave or stepped and concave from both ends to the middle.
7. The curved surface attaching jig according to claim 5, wherein the cross section of the side surface in the width direction thereof is curved concave or both ends thereof are stepped concave toward the middle.
8. The curved surface attaching jig according to any one of claims 1 to 7, wherein the attaching mold further comprises a bottom portion opposite to the attaching surface, the rigid base has an open cavity, and the shape of the bottom portion of the attaching mold is completely fitted to the shape of the cavity.
9. The curved surface bonding jig of claim 8, wherein the bonding mold further has a flat outer bottom surface, and the outer bottom surface is parallel to the bonding surface.
CN202010260870.8A 2020-04-03 2020-04-03 Curved surface laminating tool Pending CN111451954A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165232A (en) * 1984-09-19 1986-04-09 Autoroofs Ltd Curved vehicle window panels
CN208684759U (en) * 2018-06-27 2019-04-02 伯恩光学(惠州)有限公司 Curved glass panel is hot-forming to use graphite jig
CN109571927A (en) * 2018-11-30 2019-04-05 Oppo(重庆)智能科技有限公司 Method for adhering film and pad-pasting fixture
CN109950184A (en) * 2019-04-12 2019-06-28 京东方科技集团股份有限公司 Pressing device, flexible display panels and its assemble method, flexible display apparatus
CN209352775U (en) * 2018-12-26 2019-09-06 浙江星星科技股份有限公司 A kind of bend glass hot bending die
CN209794814U (en) * 2019-04-09 2019-12-17 深圳市骏创科技有限公司 Curved surface screen subassembly pastes and uses elasticity PAD and laminating frock
CN110901044A (en) * 2019-11-29 2020-03-24 京东方科技集团股份有限公司 A laminating frock for curved surface screen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165232A (en) * 1984-09-19 1986-04-09 Autoroofs Ltd Curved vehicle window panels
CN208684759U (en) * 2018-06-27 2019-04-02 伯恩光学(惠州)有限公司 Curved glass panel is hot-forming to use graphite jig
CN109571927A (en) * 2018-11-30 2019-04-05 Oppo(重庆)智能科技有限公司 Method for adhering film and pad-pasting fixture
CN209352775U (en) * 2018-12-26 2019-09-06 浙江星星科技股份有限公司 A kind of bend glass hot bending die
CN209794814U (en) * 2019-04-09 2019-12-17 深圳市骏创科技有限公司 Curved surface screen subassembly pastes and uses elasticity PAD and laminating frock
CN109950184A (en) * 2019-04-12 2019-06-28 京东方科技集团股份有限公司 Pressing device, flexible display panels and its assemble method, flexible display apparatus
CN110901044A (en) * 2019-11-29 2020-03-24 京东方科技集团股份有限公司 A laminating frock for curved surface screen

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Application publication date: 20200728