WO2017197927A1 - 液态光固化胶涂覆装置和方法 - Google Patents

液态光固化胶涂覆装置和方法 Download PDF

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Publication number
WO2017197927A1
WO2017197927A1 PCT/CN2017/072984 CN2017072984W WO2017197927A1 WO 2017197927 A1 WO2017197927 A1 WO 2017197927A1 CN 2017072984 W CN2017072984 W CN 2017072984W WO 2017197927 A1 WO2017197927 A1 WO 2017197927A1
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WO
WIPO (PCT)
Prior art keywords
coating
liquid
coated
adhesive
coating head
Prior art date
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PCT/CN2017/072984
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English (en)
French (fr)
Inventor
曾木
王涛
杨国文
朴世赫
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/548,517 priority Critical patent/US11198147B2/en
Priority to EP17742638.4A priority patent/EP3459643A4/en
Publication of WO2017197927A1 publication Critical patent/WO2017197927A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B05C5/0216—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles by relative movement of article and outlet according to a predetermined 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
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/062—Pretreatment
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating

Definitions

  • Embodiments of the present invention relate to a liquid photocurable adhesive coating apparatus, a method of coating a liquid photocurable adhesive using a liquid photocurable adhesive coating apparatus, and a coating method of a liquid photocurable adhesive.
  • a curved display device with a concave display screen and a backlight has gradually appeared on the market. Since the display of the curved display device is a curved design surrounded by the entire screen in the direction of the viewer, it can provide a wide viewing angle and a wide panoramic image effect, so that the curved display device gives the user a more natural and comfortable sensory sense. Experience.
  • At least one embodiment of the present invention provides a liquid photocuring adhesive coating device, a method of coating a liquid photocurable adhesive using a liquid photocurable adhesive coating device, and a coating method of a liquid photocurable adhesive.
  • the liquid photo-curing adhesive coating device can pre-cure the liquid photo-curable adhesive while pre-curing the liquid photo-curable adhesive, so that the liquid-curing adhesive can be coated on the curved surface.
  • At least one embodiment of the present invention provides a liquid photocurable adhesive coating apparatus comprising: a coating head configured to apply a liquid photocurable adhesive; and a pre-cured light source fixed at the The coating head is configured and configured to pre-cure the liquid-cured gel coated by the coating head while the coating head is coated with the liquid photo-curable adhesive.
  • the pre-curing light source is configured to emit parallel curing light.
  • a light exiting direction of the pre-cured light source is consistent with an outflow direction of the liquid photocurable adhesive in the coating head.
  • the pre-curing light source is disposed on an outer surface of the coating head.
  • the coating head includes a liquid photo-curing adhesive passage, and the pre-cured light source is disposed on an outer surface of the coating head. The closest position of the liquid light-curing adhesive channel.
  • the liquid photocuring adhesive coating apparatus provided by an embodiment of the invention further includes: coating head movement The mechanism, the coating head moving mechanism is coupled to the coating head and includes a rotating mechanism configured to rotate the coating head.
  • the coating head moving mechanism further includes: a first propulsion mechanism configured to cause the coating head to follow a first direction of movement; and a second advancement structure configured to move the coating head in a second direction.
  • the first propulsion mechanism is connected to the rotating mechanism, and the first propulsion mechanism drives the rotating mechanism to cause the coating
  • the head moves in a first direction
  • the second advancement mechanism is coupled to the first advancement mechanism, the second advancement mechanism moving the coating head in a first direction by driving the first advancement mechanism.
  • the rotating mechanism is configured to rotate about an axis perpendicular to a plane in which the first direction and the second direction are located.
  • a size of a light exit opening of the pre-cured light source in a direction perpendicular to a plane perpendicular to the first direction and the second direction is greater than or And a dimension equal to a direction of the dispensing opening of the coating head in a direction perpendicular to a plane in which the first direction and the second direction are located.
  • the first propulsion mechanism includes a first-direction lead screw; and the second propulsion mechanism includes a second-direction lead screw.
  • the pre-cured light source includes a laser emitter.
  • the pre-cured light source includes a curing lamp and a light shielding plate, and the light shielding plate wraps the curing lamp to cause the pre-cured light source to emit parallel curing. Light.
  • a side of the light shielding plate adjacent to the curing lamp is provided with a reflective film.
  • At least one embodiment of the present invention provides a method of coating a liquid photocurable adhesive using a liquid photocurable adhesive coating apparatus, the liquid photocurable adhesive coating apparatus comprising: a coating head configured to be coated a liquid curable gel; and a pre-cured light source fixed to the coating head and configured to pre-cure the coating head while the coating head is coated with the liquid photo-curing adhesive Covering the liquid photocurable gel; the method for coating a liquid photocurable gel using a liquid photocuring gel coating device The method includes: coating the liquid photocurable adhesive on the substrate to be coated using the coating head; and pre-curing the liquid photocurable adhesive using the pre-cured light source; Coating the liquid photocurable gel on the substrate to be coated is performed simultaneously with pre-curing the liquid photocurable gel using the precured light source.
  • the substrate to be coated comprises a curved surface.
  • a light outgoing direction of the pre-cured light source and the liquid photocurable adhesive in the coating head further includes: a coating head moving mechanism coupled to the coating head and including a rotating mechanism configured to rotate the coating head Applying a coating head moving mechanism to coat the coated surface of the coating head with respect to the coated surface of the substrate to be coated, in the process of applying the liquid photocurable adhesive on the substrate to be coated using the coating head The speed is consistent.
  • the coating head moving mechanism further includes: a first propulsion mechanism, the first propulsion mechanism configuration To move the coating head in a first direction; and a second propulsion structure, the second propulsion mechanism is configured to move the coating head in a second direction;
  • the curved surface includes a sub-curvature r a method of coating a liquid photocurable adhesive using a liquid photocurable adhesive coating device, further comprising: determining a coating speed V of the coating head relative to a surface of the substrate to be coated; The distance d of the coating end point of the head to the coated surface of the substrate to be coated, the curvature r of the sub-curved surface and the coating speed V determine the angular velocity ⁇ of the rotating mechanism; and the first direction according to the coating speed V a sub-speed Vx and Vy in a second direction, a distance d from a coating end of the coating head to a coated surface
  • the coating head moving mechanism is used to make the outflow direction of the liquid photocurable adhesive perpendicular to the coated surface of the substrate to be coated.
  • a process of applying a liquid photocurable adhesive on a substrate to be coated using the coating head is used to keep the distance of the coating head from the coated surface of the substrate to be coated consistent.
  • At least one embodiment of the present invention provides a method for coating a liquid photocurable adhesive, comprising: coating a liquid photocurable adhesive on a substrate to be coated; and precuring the liquid photocurable adhesive; coating the substrate to be coated The liquid-curing gel is applied and the liquid-curing gel is pre-cured simultaneously.
  • the substrate to be coated comprises a curved surface.
  • the coating speed is kept consistent during the application of the liquid photocurable adhesive on the substrate to be coated.
  • the outflow direction of the liquid photocurable adhesive and the to be coated is vertical.
  • FIG. 1 is a schematic structural view of a liquid photocuring adhesive coating device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of another liquid photocuring adhesive coating device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of another liquid photocuring adhesive coating device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of another liquid photocuring adhesive coating device according to an embodiment of the present invention.
  • 5-6 is a schematic diagram of coating a liquid photocurable adhesive using a liquid photocuring adhesive coating device according to an embodiment of the invention
  • Figure 7 is a bottom plan view of a liquid photocuring adhesive coating apparatus according to an embodiment of the present invention.
  • FIG. 8a is a schematic diagram of coating a liquid photocurable adhesive on a curved surface using a liquid photocuring adhesive coating device according to an embodiment of the present invention
  • FIG. 8b is a schematic view showing the path of the liquid photocuring adhesive coating device of FIG. 8a when the liquid photocuring adhesive is coated on the curved surface.
  • 101-coating head 1010-light curing glue channel; 1012-geling port; 102-pre-curing light source; 1020-curing lamp; 1021-shading plate; 1022-reflecting film; 1023-lighting port; Moving mechanism; 1030 - rotating mechanism; 1031 - first propulsion mechanism; 1032 - second propulsion mechanism.
  • liquid crystal glue flows on the surface of the curved substrate, which causes problems such as inconsistent thickness of the liquid optical adhesive after curing. Therefore, the curved surface bonding optical adhesive of the curved display device adopts solid optical adhesive. , liquid optical glue is not used. However, compared with liquid optical glue, the cost of solid optical adhesive in use, transportation, inventory, etc. will increase, and the optical picture characteristics are slightly poor, and the internal stress of the product is large when attached.
  • Embodiments of the present invention provide a liquid photocuring adhesive coating device, a method of coating a liquid photocurable adhesive using a liquid photocurable adhesive coating device, and a coating method of a liquid photocurable adhesive.
  • the liquid-curing gel coating device includes a coating head configured to apply a liquid photo-curing adhesive and a pre-cured light source configured to pre-cure the coating-coated liquid photo-curing adhesive to lose fluidity of the liquid photo-curing adhesive. .
  • the liquid photo-curing adhesive coating device can pre-cure the liquid photo-curable adhesive while pre-curing the liquid photo-curable adhesive, so that the liquid-curing adhesive can be coated on the curved surface.
  • liquid photocuring adhesive coating device provided by the embodiment of the present invention, the liquid photocurable adhesive coating method using the liquid photocurable adhesive coating device, and the coating method of the liquid photocurable adhesive are further described below with reference to the accompanying drawings. Line description.
  • the embodiment provides a liquid photocuring adhesive coating device comprising a coating head 101 and a pre-cured light source 102.
  • the coating head 101 is used to coat the liquid photo-curing adhesive 202; the pre-curing light source 102 is fixed on the coating head 101 and configured to pre-cure the coating head 101 while the coating head 101 is coated with the liquid photo-curing adhesive 202.
  • Liquid light curing adhesive 202 Liquid light curing adhesive 202.
  • the pre-curing light source 102 is fixed on the coating head 101, and the coating head 101 can apply the liquid photo-curing adhesive 202 on the substrate 201 to be coated; the pre-curing light source 102 can emit curing light to be coated.
  • the liquid photocurable adhesive 202 coated on the substrate 201 to be coated is pre-cured and loses fluidity, so that the liquid photo-curable adhesive 202 does not flow after being coated on the curved surface, thereby enabling coating on the curved surface.
  • Liquid light curing adhesive It should be noted that the pre-curing light source 102 does not completely cure the liquid photo-curing adhesive 202, but only cures the liquid photo-curing adhesive 202 to the extent that it loses fluidity.
  • the curved surface described above includes, but is not limited to, a curved surface, and may include other curved surfaces, for example, a curved surface.
  • the liquid photocurable adhesive 202 can be a liquid optical adhesive, a photoresist, or the like.
  • the substrate to be coated 201 may be a display cover.
  • pre-curing can be performed by applying a liquid photocurable adhesive edge, so that the liquid photo-curing adhesive is coated on the liquid-curing adhesive.
  • the surface does not flow afterwards, so that a liquid photocurable adhesive can be applied to the surface.
  • the curing rate of the liquid photocurable adhesive coated on the substrate to be coated is uniform, thereby forming a liquid curing glue having a uniform thickness.
  • the above coating speed refers to the moving speed of the coating head relative to the substrate to be coated.
  • the pre-curing light source 102 is configured to emit parallel curing light. Since the pre-cured light source 102 emits parallel curing light, the size of the parallel curing light emitted by the pre-cured light source 102 in a plane parallel to the substrate 201 to be coated may be adjusted as needed to irradiate only the liquid light-curing adhesive requiring pre-curing. 202, the liquid curable adhesive 202 formed at other positions on the substrate 201 to be coated is not affected. It should be noted that the above-mentioned parallel curing light is relative to the divergent light, and includes not limited to strictly parallel light, and may include parallel light within a certain error range.
  • the light-emitting direction of the pre-cured light source 101 coincides with the outflow direction of the liquid photo-curable adhesive 202 in the coating head 102.
  • the pre-cured light source 102 is fixed on the coating head 101 and pre-cures the light-emitting side of the light source 101
  • the pre-cured light source 102 can be moved as the coating head 101 moves, thereby pre-curing the liquid photo-curing adhesive 202 coated by the coating head 101 at any time.
  • the embodiment includes but is not limited thereto.
  • the pre-cured light source may also not be fixed on the coating head.
  • the pre-cured light source may be separately provided; in this case, the pre-cured light source pre-curing the liquid photo-curing adhesive can be adjusted by adjusting its position and the angle of light extraction and coating.
  • the process of coating the liquid photocuring gel by the coating is carried out simultaneously. That is, when the coating head is coated with the liquid photo-curing adhesive on the substrate to be coated, the spot of the pre-cured light source projected onto the substrate to be coated can be adjusted by adjusting the position of the pre-cured light source and the angle of the light-emitting.
  • the movement of the coating head moves, so that the photocurable adhesive coated on the substrate to be coated loses fluidity in time, so that the liquid photocurable adhesive does not flow after being coated on the curved surface, thereby forming a liquid body having a uniform thickness.
  • Light curing adhesive layer Compared with the above case, the liquid photocurable adhesive coating device provided by the present example is simpler in structure, and it is not necessary to separately control the position and angle of the pre-cured light source.
  • the pre-curing light source 102 is disposed on the outer surface of the coating head 101. Therefore, after the coating head 101 coats the liquid photo-curing adhesive 202 on the substrate 201 to be coated, the pre-curing light source 102 can quickly pre-cure the liquid-curing adhesive 202 and make it lose fluidity, ensuring that it will not The substrate 201 to be coated flows, thereby avoiding the problem of uneven thickness of the liquid optical glue.
  • the coating head 101 includes a liquid photocuring adhesive passage 1010, and the precuring light source 102 is disposed on the outer surface of the coating head 101.
  • the position of the head 101 is close to the outer surface of the coating head 101.
  • the pre-curing light source 102 can be correspondingly disposed on the outer surface of the side of the coating head 101 at a position closest to the liquid photo-curing adhesive passage 1010. The position where the outer surface of the head 101 is at the shortest distance from the surface of the liquid photocuring channel 1010.
  • the speed at which the pre-cured light source 102 pre-cures the liquid photo-curable adhesive 202 after the application of the liquid photo-curing adhesive 202 on the substrate 201 to be coated by the coating head 101 can be further improved; that is, when coating After the head 101 is coated with the liquid photo-curable adhesive 202 on the substrate 201 to be coated, the pre-cured light source 102 can pre-cure the coated liquid photo-curable adhesive 202 to further avoid the liquid-curable adhesive 202 on the substrate to be coated 201.
  • the liquid photo-curing adhesive passage is a passage for the liquid photo-curing adhesive in the coating head to flow out.
  • the pre-cured light source 102 includes laser emitters.
  • the pre-cured light source 102 can emit parallel solidified light.
  • the pre-curing light source 102 includes a curing light 1020 and a light shielding plate 1021, and the light shielding plate 1021 covers the curing light 1020 to make the pre-curing light source. 102 emits parallel curing light.
  • the length of the light shielding plate 1021 in the light emitting direction of the pre-cured light source 102 may be greater than the length of the curing light 1020, thereby increasing the parallelism of the parallel solidified light emitted by the pre-cured light source 102.
  • the above-mentioned package is not limited to the full package and may include a half package.
  • the side of the curing lamp 1020 near the coating head 101 may be shielded by the coating head 101 without additionally forming the light shielding plate 1021.
  • a side of the light shielding plate 1021 adjacent to the curing lamp 1020 is provided with a reflective film 1022.
  • the reflective film 1022 can reflect the light emitted by the curing light 1020 in a direction other than the light emitting direction of the pre-cured light source 102. The light is emitted toward the pre-curing light source 102 in the light-emitting direction, so that the utilization efficiency of the light from the curing lamp 1020 can be improved.
  • the curing lamp 1020 is an LED curing lamp.
  • the pre-curing light source 102 and the coating head 101 may be integrally formed.
  • a pre-cured light source 102 is formed inside the coating head 101.
  • the coating head 101 may also be provided with a reflective film on the inner wall of the pre-cured light source 102.
  • the liquid photocurable adhesive coating apparatus provided in an example of the embodiment further includes: a coating head moving mechanism 103 connected to the coating head 101 and configured to be coated.
  • a rotating mechanism 1030 in which the head 101 rotates.
  • the coating head moving mechanism 103 is used to move the coating head 101 to apply a liquid photo-curing paste on various substrates to be coated.
  • the rotating mechanism 1030 can drive the coating head 101 to coat on the curved surface.
  • the coating head moving mechanism 103 further includes: configured to move the coating head 101 along the first direction.
  • the first propulsion mechanism 1031 is connected to the rotation mechanism 1030, and the first propulsion mechanism 1031 drives the rotation mechanism 1030 to The coating head 101 moves along the first direction; the second pushing mechanism 1032 and the first pushing The advancement mechanism 1031 is coupled, and the second advancement mechanism 1032 moves the coating head 101 in the first direction by driving the first advancement mechanism 1031.
  • the embodiment includes, but is not limited to, the above-described connection manner.
  • the second advancement mechanism 1032 can also be coupled to the rotation mechanism 1030.
  • the second advancement mechanism 1032 drives the rotation mechanism 1030 to cause the coating head 101 to follow the second direction.
  • the first advancement mechanism 1031 can also be coupled to the first advancement mechanism 1032, which moves the coating head 101 in the first direction by driving the second advancement mechanism 1032.
  • the rotating mechanism 1030 is configured to rotate about an axis perpendicular to the faces formed by the first direction and the second direction. Thereby, the rotating mechanism 1030 can drive the coating head 101 to rotate in the plane formed by the first direction and the second direction.
  • L 1 is equal to the dimension L 2 of the dispensing opening 1023 of the coating head 101 in a direction perpendicular to the plane in which the first direction and the second direction are located.
  • the pre-cured light source 102 can just cure the liquid photo-curing gel applied by the coating head 101.
  • the present embodiment includes but is not limited to, for example, when the liquid photo-curing adhesive coating device provided by the embodiment is used for coating a linear liquid-curing adhesive pattern, the light-emitting port of the pre-cured light source is vertical.
  • the dimension in the direction of the plane in which the first direction and the second direction are located may also be larger than the dimension of the dispensing opening of the coating head in a direction perpendicular to the plane in which the first direction and the second direction are located.
  • the first propulsion mechanism 1031 includes a first direction lead screw; and the second propulsion mechanism 1032 includes a second direction lead screw.
  • the first propulsion mechanism 1031 and the second propulsion mechanism 1032 can perform precise movement.
  • the embodiment includes but is not limited thereto, the first propulsion mechanism may include a first direction slide rail, and the second propulsion machine may include a second direction slide rail.
  • the liquid photocuring adhesive coating apparatus provided in the first embodiment of the present embodiment further includes a curing light source for completely curing the liquid photocuring adhesive coated on the substrate to be coated.
  • the embodiment provides a method for coating a liquid photocurable adhesive using a liquid photocuring adhesive coating device.
  • the liquid photocurable adhesive coating device comprises a liquid photocurable adhesive 202 configured to be coated.
  • a method of coating a liquid photocurable adhesive using a liquid photocuring adhesive coating device includes the following Steps 110-120.
  • Step 110 Applying a liquid photo-curable adhesive 202 to the substrate 201 to be coated using the coating head 101.
  • the liquid photocurable adhesive 202 can be a liquid optical adhesive, a photoresist, or the like.
  • the substrate to be coated 201 may be a display cover.
  • Step 120 Pre-curing the liquid photo-curable gel 202 using the pre-cured light source 102 to lose fluidity of the liquid photo-curable adhesive 202.
  • the pre-curing of the liquid photo-curing adhesive 202 using the pre-curing light source 102 does not completely cure the liquid photo-curing adhesive 202, but only cures the liquid photo-curing adhesive 202 to the extent that it loses fluidity.
  • the coating head 101 can apply the liquid photo-curable adhesive 202 on the substrate 201 to be coated; the pre-cured light source 102 can be The liquid photocuring adhesive 202 coated on the substrate 201 to be coated by the coating head 101 is pre-cured to lose fluidity, so that the liquid photo-curable adhesive 202 does not flow after being coated on the curved surface, thereby realizing A liquid photocuring adhesive is applied to the curved surface.
  • a coating head is used to apply a liquid photocurable adhesive to a substrate to be coated and a precured light source is used.
  • the liquid photocuring gel is cured to cause the liquid photocurable gel to lose fluidity at the same time.
  • the pre-cured light source can immediately pre-cure the liquid photo-curable adhesive and lose its fluidity, ensuring that it will not be on the substrate to be coated. Flow, thus avoiding the problem of uneven thickness of liquid optical glue.
  • the substrate 201 to be coated includes a curved surface.
  • the substrate to be coated 201 may be a curved display panel.
  • the precured light source 102 can emit curing light to apply the coating head 101 to the liquid light to be coated on the substrate 201.
  • the curing adhesive 202 is pre-cured to lose fluidity. Therefore, the liquid photo-curing adhesive 202 does not flow on the curved surface due to gravity, so that the liquid photo-curing adhesive can be applied on the curved surface.
  • the pre-cured light source 102 is fixed on the coating head 101, and The light-emitting direction of the pre-cured light source 102 coincides with the outflow direction of the liquid photo-curable adhesive 202 in the coating head 102.
  • the liquid-curable adhesive coating device further includes: a coating head moving mechanism 103, and the coating head moving mechanism 103 and The coating head 101 is coupled and includes a rotating mechanism 1030 configured to rotate the coating head 101; in the process of applying the liquid photocuring paste 202 on the substrate 201 to be coated using the coating head 101, using a coating head moving mechanism 103 maintains the coating speed of the coating head 101 with respect to the coated surface 2010 of the substrate 201 to be coated.
  • the coating head 101 can form a uniform thickness of the liquid photo-curable adhesive layer on the substrate 201 to be coated.
  • the pre-cured light source can pre-cure the liquid photo-curable adhesive and lose its fluidity, a uniform thickness of the liquid photo-curable adhesive layer can be applied to the curved surface.
  • the above coating speed refers to the moving speed of the coating head relative to the coated surface of the substrate to be coated in the process of coating the liquid photocurable adhesive on the substrate to be coated by the coating head.
  • the coating head moving mechanism 103 further includes: a first propulsion mechanism 1031 And a second advancement mechanism 1032; the first advancement mechanism 1031 is configured to move the coating head 101 in a first direction, and the second advancement mechanism 1032 is configured to move the coating head 101 in a second direction.
  • a curved surface of the substrate to be coated may be regarded as a combination of a plurality of sub-curves having different curvatures.
  • the method of coating a liquid photocurable adhesive using a liquid photocuring adhesive coating device further includes the following steps 210-230.
  • Step 210 Determine the coating speed V of the coating head 101 relative to the coated surface 2010 of the substrate 201 to be coated.
  • the above coating speed V can be determined according to the thickness of the liquid photocurable gel which is required to be coated on the substrate to be coated. For example, when a thick liquid photo-curing adhesive needs to be applied, the coating speed V can be set large, and when a thin liquid photo-curing adhesive needs to be applied, the coating speed V can be set small. Examples include but are not limited to this.
  • the coating speed V can be set large, and when a thin liquid photo-curing adhesive needs to be applied, the coating speed V can be set small. Examples include but are not limited to this.
  • Step 220 Determine the angular velocity ⁇ of the rotating mechanism 1030 according to the distance d of the coating head 101 coating end point to the coated surface 2010 of the substrate 201 to be coated, the curvature r of the sub-curved surface, and the coating speed V.
  • FIG. 8b is a schematic view of the path of the liquid photocuring adhesive coating device of FIG. 8a when a liquid photocuring adhesive is applied on a sub-curved surface having a curvature r.
  • the coating head of the liquid photocuring gel coating device is perpendicular to the sub-curved surface having the curvature r and the coating end of the coating head of the liquid photocuring gel coating device is coated with a sub-curved surface having a curvature r
  • the distance d of the cladding remains the same, due to the coating head relative to the substrate to be coated
  • the coating speed of the coated surface of the plate is determined to be V, and therefore, the angular velocity ⁇ of the rotating mechanism is equal to the coating speed of the coating head with respect to the coated surface of the substrate to be coated is determined as V divided by the curvature r of the sub-curved surface and coated
  • the difference between the distance d of the coated surface of the sub-surface with the curvature of r from the end of the coating is
  • Step 230 8b, coating speed V according to the endpoint velocity components of the first and second directions V x and V Y, the distance d is applied to the coating head of the coating surface of the substrate to be coated, from The distance from the axis of the rotating mechanism to the coated end of the coating head is R and the curvature r of the sub-curved surface to determine the speeds v 1 and v 2 of the first and second propulsion mechanisms, thereby allowing the coating head to be opposed to The coating speed of the coated side of the coated substrate remains the same.
  • the coating head is perpendicular to the sub-curved surface having the curvature r and the distance d between the coating head coating end points and the coated surface of the sub-curved surface having the curvature r is kept constant, and the coating head is opposed to the coating to be coated.
  • the coating speed of the coated surface of the substrate is determined to be V, and the distance from the axis of the rotating device to the coating end of the coating head is R, and therefore, the velocity V' at the axis of the rotating mechanism is in the first direction.
  • the sub-speed V 1 that is, the speed of the first propulsion mechanism and the speed V′ at the axis of the rotating mechanism in the second direction, the speed V 2 of the second propulsion mechanism, satisfy the following formula:
  • the coating head moving mechanism causes the liquid photocuring adhesive to flow out perpendicularly to the coated surface of the substrate to be coated.
  • the coating head moving mechanism maintains the distance of the coating head relative to the coated surface of the substrate to be coated.
  • This embodiment provides a coating method of a liquid photocurable adhesive, which comprises the following steps 310-320.
  • Step 310 Coating a liquid photocurable gel on the substrate to be coated.
  • the liquid photocuring adhesive can be a liquid optical adhesive, a photoresist, or the like.
  • the substrate to be coated may be a display cover.
  • Step 320 pre-curing the liquid photo-curing adhesive to make the liquid photo-curing adhesive lose fluidity, coating the liquid photo-curing adhesive and the pre-curing liquid photo-curing adhesive on the substrate to be coated to make the liquid photo-curing adhesive lose flow. Sex at the same time.
  • liquid photo-curing adhesive does not completely cure the liquid photo-curing adhesive, but only cures the liquid photo-curing adhesive to the extent of losing fluidity.
  • the liquid photocurable adhesive coated on the substrate to be coated can be pre-cured to lose fluidity, so that the liquid photocurable adhesive is not coated on the curved surface. It will flow so that a liquid photo-curing adhesive can be applied to the curved surface. After the liquid photocurable adhesive is applied on the substrate to be coated, the liquid photocurable adhesive can be pre-cured immediately and the fluidity is lost to ensure that it does not flow on the substrate to be coated, thereby avoiding the thickness of the liquid optical adhesive. The problem of unevenness.
  • the substrate to be coated includes a curved surface.
  • the substrate to be coated may be a curved display cover.
  • the liquid photocurable adhesive coated on the substrate to be coated is pre-cured to lose fluidity, the liquid photocurable adhesive is not due to gravity.
  • the reason for flowing on the curved surface is to apply a liquid photocurable adhesive to the curved surface.
  • the coating speed is kept uniform during the application of the liquid photocurable adhesive on the substrate to be coated.
  • a layer of liquid photocurable adhesive layer having a uniform thickness can be formed on the substrate to be coated.
  • the outflow direction of the liquid photocurable adhesive and the coating of the substrate to be coated are applied.
  • the cover is vertical.
  • the thickness of the liquid photocurable gel coated on the substrate to be coated can be controlled by controlling the coating speed and the coating gas pressure.
  • the coating speed is set small, and conversely, when the coating thickness is thin, the coating speed is set large.
  • the coating speed is constant, when the thickness to be coated is thick, the applied gas pressure is set large, and conversely, when the coating thickness is thin, the coating gas pressure setting is small.
  • the coating method of the liquid photocurable adhesive provided by the example of the embodiment further includes: completely curing the liquid photocurable adhesive coated on the substrate to be coated.
  • the substrate to be coated may be a curved display cover plate, and after the liquid light curing adhesive is coated on the curved display cover plate, the curved display cover plate coated with the liquid light curing adhesive is attached to the curved display screen; The liquid photocuring gel applied to the curved display cover is then fully cured.

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Abstract

一种液态光固化胶涂覆装置及液态光固化胶的涂覆方法。该液态光固化胶涂覆装置包括用于涂覆液态光固化胶的涂覆头（101）；以及预固化光源（102），该预固化光源（102）用于使涂覆头（101）所涂敷的液态光固化胶失去流动性，使得所涂敷的曲面装置上的光学胶的厚度一致。

Description

液态光固化胶涂覆装置和方法 技术领域
本发明的实施例涉及一种液态光固化胶涂覆装置、使用液态光固化胶涂覆装置涂覆液态光固化胶的方法以及液态光固化胶的涂覆方法。
背景技术
近年来，随着显示技术的不断发展，市场上逐渐出现了显示屏和背光源均内凹的曲面显示装置(Curved Display)。由于曲面显示装置的显示屏为整片屏幕朝观看者方向包围的一种弧形设计，可提供宽广的可视角度与宽阔的全景影像效果，使得曲面显示装置带给用户更自然、舒适的感官体验。
发明内容
本发明至少一实施例提供一种液态光固化胶涂覆装置、使用液态光固化胶涂覆装置涂覆液态光固化胶的方法以及液态光固化胶的涂覆方法。该液态光固化胶涂覆装置可在涂覆液态光固化胶的同时对液态光固化胶进行与预固化，使其丧失流动性，从而可实现在曲面上涂覆液态光固化胶。
本发明至少一个实施例提供一种液态光固化胶涂覆装置，包括：涂覆头，所述涂覆头配置为涂覆液态光固化胶；以及预固化光源，所述预固化光源固定在所述涂覆头上并且配置为在所述涂覆头涂覆所述液态光固化胶的同时预固化所述涂覆头涂覆的所述液态光固化胶。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源配置为发射平行固化光。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源的出光方向与所述涂覆头中所述液态光固化胶的流出方向一致。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源设置在所述涂覆头的外表面上。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述涂覆头包括液态光固化胶通道，所述预固化光源设置在所述涂覆头的外表面上距离所述液态光固化胶通道最近的位置。
例如，本发明一实施例提供的液态光固化胶涂覆装置还包括：涂覆头移动 机构，所述涂覆头移动机构与所述涂覆头连接且包括配置为使所述涂覆头转动的旋转机构。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述涂覆头移动机构还包括：第一推进机构，所述第一推进机构配置为使所述涂覆头沿着第一方向运动；以及第二推进结构，所述第二推进机构配置为使所述涂覆头沿着第二方向运动。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述第一推进机构与所述旋转机构相连，所述第一推进机构通过带动所述旋转机构从而使所述涂覆头沿着第一方向运动；所述第二推进机构与所述第一推进机构相连，所述第二推进机构通过带动所述第一推进机构使得所述涂覆头沿着第一方向运动。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述旋转机构配置为绕垂直于所述第一方向和所述第二方向所在平面的轴旋转。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源的出光口在垂直于所述第一方向和所述第二方向所在平面的方向上的尺寸大于或等于所述涂覆头的出胶口在垂直于所述第一方向和所述第二方向所在平面的方向上的尺寸。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述第一推进机构包括第一方向丝杠；所述第二推进机构包括第二方向丝杠。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源包括激光发射器。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述预固化光源包括固化灯和遮光板，所述遮光板包裹所述固化灯以使所述预固化光源发射平行固化光。
例如，在本发明一实施例提供的液态光固化胶涂覆装置中，所述遮光板靠近所述固化灯的一侧设有反射膜。
本发明至少一实施例提供一种使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，所述液态光固化胶涂覆装置包括：涂覆头，所述涂覆头配置为涂覆液态光固化胶；以及预固化光源，所述预固化光源固定在所述涂覆头上并且配置为在所述涂覆头涂覆所述液态光固化胶的同时预固化所述涂覆头涂覆的所述液态光固化胶；所述使用液态光固化胶涂覆装置涂覆液态光固化胶的方法 包括：使用所述涂覆头在所述待涂覆基板上涂覆所述液态光固化胶；以及使用所述预固化光源预固化所述液态光固化胶；使用所述涂覆头在所述待涂覆基板上涂覆所述液态光固化胶与使用所述预固化光源预固化所述液态光固化胶同时进行。
例如，在本发明一实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，所述待涂覆基板包括曲面。
例如，在本发明一实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，所述预固化光源的出光方向与所述涂覆头中所述液态光固化胶的流出方向一致，所述液态光固化胶涂覆装置还包括：涂覆头移动机构，所述涂覆头移动机构与所述涂覆头连接且包括配置为使所述涂覆头转动的旋转机构；在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得所述涂覆头相对于所述待涂覆基板的涂覆面的涂覆速度保持一致。
例如，在本发明一实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，所述涂覆头移动机构还包括：第一推进机构，所述第一推进机构配置为使所述涂覆头沿着第一方向运动；以及第二推进结构，所述第二推进机构配置为使所述涂覆头沿着第二方向运动；所述曲面包括曲率为r的子曲面；所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法还包括：确定所述涂覆头相对于所述待涂覆基板表面的涂覆速度V；根据所述涂覆头的涂覆端点到所述待涂覆基板的涂覆面的距离d、所述子曲面的曲率r和涂覆速度V确定所述旋转机构的角速度ω；以及根据涂覆速度V在第一方向和第二方向的分速度Vx和Vy、所述涂覆头的涂覆端点到所述待涂覆基板的涂覆面的距离d、从所述旋转机构的轴心到所述涂覆头的涂覆端点的距离为R以及所述子曲面的曲率r来确定所述第一推进机构和所述第二推进机构的速度v1和v2，从而使得所述涂覆头相对于所述待涂覆基板的所述涂覆面的涂覆速度保持一致。
例如，在本发明一实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得所述液态光固化胶的流出方向与所述待涂覆基板的所述涂覆面垂直。
例如，在本发明一实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程 中，使用涂覆头移动机构使得所述涂覆头相对于所述待涂覆基板的涂覆面的距离保持一致。
本发明至少一实施例提供一种液态光固化胶的涂覆方法，包括：在待涂覆基板上涂覆液态光固化胶；以及预固化所述液态光固化胶；在待涂覆基板上涂覆液态光固化胶和预固化所述液态光固化胶同时进行。
例如，在本发明一实施例提供的液态光固化胶的涂覆方法中，所述待涂覆基板包括曲面。
例如，在本发明一实施例提供的液态光固化胶的涂覆方法中，在待涂覆基板上涂覆液态光固化胶的过程中，涂覆速度保持一致。
例如，在本发明一实施例提供的液态光固化胶的涂覆方法中，在待涂覆基板上涂覆液态光固化胶的过程中，所述液态光固化胶的流出方向与所述待涂覆基板的涂覆面垂直。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本发明一实施例提供的一种液态光固化胶涂覆装置的结构示意图；
图2为本发明一实施例提供的另一种液态光固化胶涂覆装置的结构示意图；
图3为本发明一实施例提供的另一种液态光固化胶涂覆装置的结构示意图；
图4为本发明一实施例提供的另一种液态光固化胶涂覆装置的结构示意图；
图5-6为本发明一实施例提供的一种使用液态光固化胶涂覆装置涂覆液态光固化胶的示意图；
图7为本发明一实施例提供的液态光固化胶涂覆装置的仰视图；
图8a为本发明一实施例提供的一种使用液态光固化胶涂覆装置在曲面上涂覆液态光固化胶的示意图；以及
图8b为图8a中液态光固化胶涂覆装置在曲面上涂覆液态光固化胶时的路径示意图。
附图标记：
101-涂覆头；1010-光固化胶通道；1012-出胶口；102-预固化光源；1020-固化灯；1021-遮光板；1022-反射膜；1023-出光口；103-涂覆头移动机构；1030-旋转机构；1031-第一推进机构；1032-第二推进机构。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
在研究中，本申请发明人发现由于液态光学胶涂覆在曲面基板表面后会流动，造成固化后的液态光学胶厚度不一致等问题，因此，曲面显示装置的曲面贴合光学胶采用固态光学胶，未采用液态光学胶。然而，相比液态光学胶而言，固态光学胶在使用、运输、库存等方面成本会增加，并且光学画面特性稍差，贴附时产品内应力较大。
本发明的实施例提供一种液态光固化胶涂覆装置、使用液态光固化胶涂覆装置涂覆液态光固化胶的方法以及液态光固化胶的涂覆方法。该液态光固化胶涂覆装置包括配置为涂覆液态光固化胶的涂覆头以及配置为预固化该涂覆头涂覆的液态光固化胶以使液态光固化胶失去流动性的预固化光源。该液态光固化胶涂覆装置可在涂覆液态光固化胶的同时对液态光固化胶进行与预固化，使其丧失流动性，从而可实现在曲面上涂覆液态光固化胶。
下面结合附图，对本发明实施例提供的液态光固化胶涂覆装置、使用液态光固化胶涂覆装置涂覆液态光固化胶的方法以及液态光固化胶的涂覆方法进 行说明。
实施例一
本实施例提供一种液态光固化胶涂覆装置，该液态光固化胶涂覆装置包括涂覆头101和预固化光源102。涂覆头101用于涂覆液态光固化胶202；预固化光源102固定在涂覆头101上并且配置为在涂覆头101涂覆液态光固化胶202的同时预固化涂覆头101涂覆的液态光固化胶202。
如图1所示，预固化光源102固定在涂覆头101上，涂覆头101可将液态光固化胶202涂覆在待涂覆基板201上；预固化光源102可发出固化光将涂覆头101涂覆在待涂覆基板201上的液态光固化胶202预固化并使之失去流动性，从而使得液态光固化胶202涂覆在曲面后不会流动，从而可实现在曲面上涂覆液态光固化胶。需要说明的是，上述的预固化光源102并不将液态光固化胶202完全固化，而仅仅只将液态光固化胶202固化到失去流动性的程度。另外，上述的曲面包括但不限于弧面，也可包括其他曲面，例如，弯折面。
例如，液态光固化胶202可为液态光学胶、光刻胶等。
例如，待涂覆基板201可为显示屏盖板。
在本实施例提供的液态光固化胶涂覆装置中，通过将涂覆头和预固化光源结合在一起，可实现边涂覆液态光固化胶边进行预固化，使得液态光固化胶涂覆在曲面后不会流动，从而可实现在曲面上涂覆液态光固化胶。另外，通过使得涂覆头相对于待涂覆基板的距离和涂覆速度保持一致可使得涂覆在待涂覆基板上的液态光固化胶的固化率一致，从而形成厚度均一的液态光固化胶层。需要说明的是，上述的涂覆速度指的是涂覆头相对于待涂覆基板的移动速度。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，预固化光源102配置为发射平行固化光。由于预固化光源102发出的是平行固化光，可根据需要调节预固化光源102发出的平行固化光在平行于待涂覆基板201的平面内的尺寸，从而仅照射需要预固化的液态光固化胶202，不会对形成在待涂覆基板201上其他位置的液态光固化胶202造成影响。需要说明的是，上述的平行固化光是相对于发散光而言的，包括并不限于严格的平行光，也可包括在一定误差范围内的平行光。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，预固化光源101的出光方向与涂覆头102中液态光固化胶202的流出方向一致。由此，因为预固化光源102固定在涂覆头101上并且预固化光源101的出光方 向与涂覆头102中液态光固化胶202的流出方向一致，预固化光源102可随着涂覆头101的移动而移动，从而随时预固化涂覆头101涂覆的液态光固化胶202。当然，本实施例包括但不限于此。预固化光源也可不固定在涂覆头上，例如，预固化光源可单独设置；在这种情况下，预固化光源预固化液态光固化胶的过程可通过调整自身的位置和出光的角度与涂覆头涂覆液态光固化胶的过程同步进行。也就是说，当涂覆头在待涂覆基板上涂覆液态光固化胶时，可通过调整预固化光源的位置和出光的角度使得预固化光源投射在待涂覆基板上的光斑可随着涂覆头的移动而移动，从而及时地使涂覆在待涂覆基板上的光固化胶失去流动性，从而使得液态光固化胶涂覆在曲面后不会流动，从而可形成厚度均一的液态光固化胶层。相较与上述的情况，本示例提供的液态光固化胶涂覆装置结构更简单，并且无需单独对预固化光源的位置和角度进行控制。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，预固化光源102设置在涂覆头101的外表面上。由此，当涂覆头101在待涂覆基板201上涂覆液态光固化胶202之后，预固化光源102可迅速预固化该液态光固化胶202并使其失去流动性，保证其不会在待涂覆基板201上流动，从而避免造成液态光学胶厚度不均的问题。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，涂覆头101包括液态光固化胶通道1010，预固化光源102设置在涂覆头101的外表面上距离液态光固化胶通道1010最近的位置。也就是说，当涂覆头101包括液态光固化胶通道1010并且液态光固化胶通道1010设置在涂覆头101非中心的位置，例如，如图1所示，液态光固化通道1010设置在涂覆头101靠近涂覆头101一侧外表面的位置，此时，预固化光源102可相应地设置在涂覆头101该侧的外表面上距离液态光固化胶通道1010最近的位置，即涂覆头101的外表面与液态光固化通道1010的表面的距离最短的位置。由此，可进一步地提高当涂覆头101在待涂覆基板201上涂覆液态光固化胶202之后，预固化光源102预固化该液态光固化胶202的速度；也就是说，当涂覆头101在待涂覆基板201上涂覆液态光固化胶202之后，预固化光源102可立刻对涂覆液态光固化胶202进行预固化，从而进一步避免液态光固化胶202在待涂覆基板201上流动。需要说明的是，液态光固化胶通道为涂覆头中液态光固化胶流出的通道。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，预固化光源102 包括激光发射器。由此，该预固化光源102可发射出平行固化光。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，预固化光源102包括固化灯1020和遮光板1021，遮光板1021包裹固化灯1020以使预固化光源102发射平行固化光。需要说明的是，遮光板1021在预固化光源102的出光方向的长度可大于固化灯1020的长度，从而提高预固化光源102发射出的平行固化光的平行度。另外，上述的包裹并不限于全包裹亦可包括半包裹，例如，在固化灯1020靠近涂覆头101的一侧可利用涂覆头101进行遮光，无需额外形成遮光板1021。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，如图1所示，遮光板1021靠近固化灯1020的一侧设有反射膜1022。需要说明的是，遮光板1021靠近固化灯1020的一侧设有反射膜1022时，反射膜1022可对固化灯1020发射的除了预固化光源102出光方向之外的其他方向的光进行反射，使之向预固化光源102出光方向出射，从而可提高固化灯1020出光的利用效率。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，固化灯1020为LED固化灯。
例如，在本实施例一示例提供的液态光固化胶涂覆装置中，预固化光源102与涂覆头101可一体形成。例如，如图2所示，预固化光源102形成在涂覆头101内部。需要说明的是，当预固化光源102形成在涂覆头101内部时，为了提高预固化光源102出光的利用效率，涂覆头101包裹预固化光源102的内壁同样可设置反射膜。
例如，如图3所示，本实施例一示例提供的液态光固化胶涂覆装置还包括：涂覆头移动机构103，涂覆头移动机构103与涂覆头101连接且包括配置为使涂覆头101转动的旋转机构1030。涂覆头移动机构103用于使涂覆头101移动，以在各种待涂覆基板上涂覆液态光固化胶。旋转机构1030可带动涂覆头101在曲面上进行涂覆。
例如，如图4-6所示，在本实施例一示例提供的液态光固化胶涂覆装置中，涂覆头移动机构103还包括：配置为使涂覆头101沿着第一方向运动第一推进机构1031；以及配置为使涂覆头101沿着第二方向运动的第二推进机构1032。
例如，如图4-6所示，在本实施例一示例提供的液态光固化胶涂覆装置中，第一推进机构1031与旋转机构1030相连，第一推进机构1031通过带动旋转机构1030从而使涂覆头101沿着第一方向运动；第二推进机构1032与第一推 进机构1031相连，第二推进机构1032通过带动第一推进机构1031使得涂覆头101沿着第一方向运动。当然，本实施例包括但不限于上述的连接方式，例如，第二推进机构1032也可与旋转机构1030相连，第二推进机构1032通过带动旋转机构1030从而使涂覆头101沿着第二方向运动；第一推进机构1031也可与第一推进机构1032相连，第一推进机构1031通过带动第二推进机构1032使得涂覆头101沿着第一方向运动。
例如，如图4-6所示，在本实施例一示例提供的液态光固化胶涂覆装置中，旋转机构1030配置为绕垂直于第一方向和第二方向所形成的面的轴旋转。由此，旋转机构1030可带动涂覆头101在第一方向和第二方向所形成的面内转动。
例如，如图7所示，在本实施例一示例提供的液态光固化胶涂覆装置中，预固化光源102的出光口1023在垂直于第一方向和第二方向所在平面的方向上的尺寸L1等于涂覆头101的出胶口1023在垂直于第一方向和第二方向所在平面的方向上的尺寸L2。由此，预固化光源102可恰好固化涂覆头101涂覆的液态光固化胶。需要说明的是，本实施例包括但不限于此，例如，当本实施例提供的液态光固化胶涂覆装置用于涂覆线性的液态光固化胶图案时，预固化光源的出光口在垂直于第一方向和第二方向所在平面的方向上的尺寸也可大于涂覆头的出胶口在垂直于第一方向和第二方向所在平面的方向上的尺寸。
例如，如图4-6所示，在实施例一示例提供的液态光固化胶涂覆装置中，第一推进机构1031包括第一方向丝杠；第二推进机构1032包括第二方向丝杠。由此，第一推进机构1031和第二推进机构1032可进行精确的移动。当然，本实施例包括但不限于此，第一推进机构可包括第一方向滑轨，第二推进机可包括第二方向滑轨。
例如，本实施例一示例提供的液态光固化胶涂覆装置还包括固化光源，用于将涂覆在待涂覆基板上的液态光固化胶彻底固化。
实施例二
本实施例提供一种使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，如图1所示，液态光固化胶涂覆装置包括配置为涂覆液态光固化胶202在待涂覆基板201上的涂覆头101以及固定在涂覆头101上并且配置为在涂覆头101涂覆液态光固化胶202的同时预固化涂覆头101涂覆的液态光固化胶202的预固化光源102。使用液态光固化胶涂覆装置涂覆液态光固化胶的方法包括以下 步骤110-120。
步骤110：使用涂覆头101在待涂覆基板201上涂覆液态光固化胶202。
例如，液态光固化胶202可为液态光学胶、光刻胶等。
例如，待涂覆基板201可为显示屏盖板。
步骤120：使用预固化光源102预固化液态光固化胶202以使液态光固化胶202失去流动性。
需要说明的是，上述的使用预固化光源102预固化液态光固化胶202并不将液态光固化胶202完全固化，而仅仅只将液态光固化胶202固化到失去流动性的程度。
在本实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，涂覆头101可将液态光固化胶202涂覆在待涂覆基板201上；预固化光源102可发出固化光将涂覆头101涂覆在待涂覆基板201上的液态光固化胶202预固化使之失去流动性，使得液态光固化胶202涂覆在曲面后不会流动，从而可实现在曲面上涂覆液态光固化胶。
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，使用涂覆头在待涂覆基板上涂覆液态光固化胶与使用预固化光源预固化液态光固化胶以使液态光固化胶失去流动性同时进行。由此，当涂覆头在待涂覆基板上涂覆液态光固化胶之后，预固化光源可立即预固化该液态光固化胶并使其失去流动性，保证其不会在待涂覆基板上流动，从而避免造成液态光学胶厚度不均的问题。
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，如图1所示，待涂覆基板201包括曲面。
例如，待涂覆基板201可为曲面显示屏盖板。
在本实施例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，由于预固化光源102可发出固化光将涂覆头101涂覆在待涂覆基板201上的液态光固化胶202预固化使之失去流动性，因此，液态光固化胶202不会因为重力的原因在曲面上流动，从而可实现在曲面上涂覆液态光固化胶。
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，如图4-6所示，预固化光源102固定在涂覆头101上，并且，预固化光源102的出光方向与涂覆头102中液态光固化胶202的流出方向一致，液态光固化胶涂覆装置还包括：涂覆头移动机构103，涂覆头移动机构103与 涂覆头101连接且包括配置为使涂覆头101转动的旋转机构1030；在使用涂覆头101在待涂覆基板201上涂覆液态光固化胶202的过程中，使用涂覆头移动机构103使得涂覆头101相对于待涂覆基板201的涂覆面2010的涂覆速度保持一致。由此，涂覆头101可在待涂覆基板201上形成一层厚度均一的液态光固化胶层。并且，由于预固化光源可预固化液态光固化胶并使之失去流动性，从而可在曲面上涂覆一层厚度均匀的液态光固化胶层。需要说明的是，上述的涂覆速度是指涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，涂覆头相对于待涂覆基板的涂覆面的移动速度。
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，如图4-6所示，涂覆头移动机构103还包括：第一推进机构1031和第二推进机构1032；第一推进机构1031配置为使涂覆头101沿着第一方向运动，第二推进机构1032配置为使涂覆头101沿着第二方向运动。在使用液态光固化胶涂覆装置在包括曲面的待涂覆基板上涂覆液态光固化胶的过程中，待涂覆基板的曲面可视为多个具有不同曲率的子曲面的组合。如图8a所示，以曲率为r的子曲面为例，使用液态光固化胶涂覆装置涂覆液态光固化胶的方法还包括以下步骤210-230。
步骤210：确定涂覆头101相对于待涂覆基板201的涂覆面2010的涂覆速度V。
需要说明的是，上述的涂覆速度V可根据所需要涂覆在待涂覆基板上的液态光固化胶的厚度确定。例如，需要涂覆较厚的液态光固化胶时，可将涂覆速度V设置地较大，需要涂覆较薄的液态光固化胶时，可将涂覆速度V设置地较小，本实施例包括但不限于此。
例如，需要涂覆较厚的液态光固化胶时，可将涂覆速度V设置地较大，需要涂覆较薄的液态光固化胶时，可将涂覆速度V设置地较小，本实施例包括但不限于此。
步骤220：根据涂覆头101涂覆端点到待涂覆基板201的涂覆面2010的距离d、子曲面的曲率r和涂覆速度V确定旋转机构1030的角速度ω。
例如，图8b为图8a中液态光固化胶涂覆装置在曲率为r的子曲面上涂覆液态光固化胶时的路径示意图。如图8b所示，液态光固化胶涂覆装置的涂覆头垂直于曲率为r的子曲面并且液态光固化胶涂覆装置的涂覆头的涂覆端点距离曲率为r的子曲面的涂覆面的距离d保持不变，由于涂覆头相对于待涂覆基 板的涂覆面的涂覆速度被确定为V，因此，旋转机构的角速度ω等于涂覆头相对于待涂覆基板的涂覆面的涂覆速度被确定为V除以子曲面的曲率r与涂覆头涂覆端点距离曲率为r的子曲面的涂覆面的距离d之差，即：
Figure PCTCN2017072984-appb-000001
步骤230：如图8b所示，根据涂覆速度V在第一方向和第二方向的分速度Vx和Vy、涂覆头涂覆端点到待涂覆基板的涂覆面的距离d、从旋转机构的轴心到涂覆头的涂覆端点的距离为R以及子曲面的曲率r来确定第一推进机构和第二推进机构的速度v1和v2，从而使得涂覆头相对于待涂覆基板的涂覆面的涂覆速度保持一致。
例如，如图8b所示，涂覆头垂直于曲率为r的子曲面并且涂覆头涂覆端点距离曲率为r的子曲面的涂覆面的距离d保持不变，涂覆头相对于待涂覆基板的涂覆面的涂覆速度被确定为V，从旋转装置的轴心到涂覆头的涂覆端点的距离为R，因此，旋转机构的轴心处的速度V’在第一方向上的分速度V1即第一推进机构的速度和旋转机构的轴心处的速度V’在第二方向上的分速度V2即第二推进机构的速度满足以下公式：
Figure PCTCN2017072984-appb-000002
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，在使用涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得液态光固化胶的流出方向与待涂覆基板的涂覆面垂直。
例如，在本实施例一示例提供的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法中，在使用涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得涂覆头相对于待涂覆基板的涂覆面的距离保持一致。
实施例三
本实施例提供一种液态光固化胶的涂覆方法，包括以下步骤310-320。
步骤310：在待涂覆基板上涂覆液态光固化胶。
例如，液态光固化胶可为液态光学胶、光刻胶等。
例如，待涂覆基板可为显示屏盖板。
步骤320：预固化液态光固化胶以使液态光固化胶失去流动性，在待涂覆基板上涂覆液态光固化胶和预固化液态光固化胶以使液态光固化胶失去流动 性同时进行。
需要说明的是，上述的预固化液态光固化胶并不将液态光固化胶完全固化，而仅仅只将液态光固化胶固化到失去流动性的程度。
在本实施例提供的液态光固化胶的涂覆方法中，可将涂覆在待涂覆基板上的液态光固化胶预固化使之失去流动性，使得液态光固化胶涂覆在曲面后不会流动，从而可实现在曲面上涂覆液态光固化胶。当在待涂覆基板上涂覆液态光固化胶之后，可立即预固化该液态光固化胶并使其失去流动性，保证其不会在待涂覆基板上流动，从而避免造成液态光学胶厚度不均的问题。
例如，在本实施例一示例提供的液态光固化胶的涂覆方法中，待涂覆基板包括曲面。
例如，待涂覆基板可为曲面显示屏盖板。
在本实施例提供的液态光固化胶的涂覆方法中，由于可将涂覆在待涂覆基板上的液态光固化胶预固化使之失去流动性，因此，液态光固化胶不会因为重力的原因在曲面上流动，从而可实现在曲面上涂覆液态光固化胶。
例如，在本实施例一示例提供的液态光固化胶的涂覆方法中，在待涂覆基板上涂覆液态光固化胶的过程中，涂覆速度保持一致。由此，可在待涂覆基板上形成一层厚度均一的液态光固化胶层。
例如，在本实施例一示例提供的液态光固化胶的涂覆方法中，在待涂覆基板上涂覆液态光固化胶的过程中，液态光固化胶的流出方向与待涂覆基板的涂覆面垂直。
例如，在本实施例一示例提供的液态光固化胶的涂覆方法中，可通过控制涂覆速度和涂覆气压来控制涂覆在待涂覆基板上的液态光固化胶的厚度。例如，当涂覆气压一定时，需要涂覆的厚度较厚时，涂覆的速度设置较小，反之，涂覆厚度较薄时，涂覆速度设置较大。例如，当涂覆速度一定时，需要涂覆的厚度较厚时，涂覆的气压设置较大，反之，涂覆厚度较薄时，涂覆气压设置较小。
例如，本实施例一示例提供的液态光固化胶的涂覆方法还包括：将涂覆在待涂覆基板上的液态光固化胶彻底固化。例如，待涂覆基板可为曲面显示屏盖板，在曲面显示屏盖板上涂覆液态光固化胶之后，将涂覆有液态光固化胶的曲面显示屏盖板与曲面显示屏贴合；然后再将涂覆在曲面显示屏盖板上的液态光固化胶彻底固化。
有以下几点需要说明：
(1)本发明实施例附图中，只涉及到与本发明实施例涉及到的结构，其他结构可参考通常设计。
(2)为了清晰起见，在用于描述本发明的实施例的附图中，层或微结构的厚度和尺寸被放大。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
(3)在不冲突的情况下，本发明同一实施例及不同实施例中的特征可以相互组合。
以上所述，仅为本公开的具体实施方式，但本公开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，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。
本申请要求于2016年05月16日递交的中国专利申请第201610323302.1号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (24)

  1. 一种液态光固化胶涂覆装置，包括：
    涂覆头，所述涂覆头配置为涂覆液态光固化胶；以及
    预固化光源，所述预固化光源固定在所述涂覆头上并且配置为在所述涂覆头涂覆所述液态光固化胶的同时预固化所述涂覆头涂覆的所述液态光固化胶。
  2. 如权利要求1所述的液态光固化胶涂覆装置，其中，所述预固化光源配置为发射平行固化光。
  3. 如权利要求1或2所述的液态光固化胶涂覆装置，其中，所述预固化光源的出光方向与所述涂覆头中所述液态光固化胶的流出方向一致。
  4. 如权利要求3所述的液态光固化胶涂覆装置，其中，所述预固化光源设置在所述涂覆头的外表面上。
  5. 如权利要求4所述的液态光固化胶涂覆装置，其中，所述涂覆头包括液态光固化胶通道，所述预固化光源设置在所述涂覆头的外表面上距离所述液态光固化胶通道最近的位置。
  6. 如权利要求1或2所述的液态光固化胶涂覆装置，还包括：
    涂覆头移动机构，其中，所述涂覆头移动机构与所述涂覆头连接且包括配置为使所述涂覆头转动的旋转机构。
  7. 如权利要求6所述的液态光固化胶涂覆装置，其中，所述涂覆头移动机构还包括：
    第一推进机构，所述第一推进机构配置为使所述涂覆头沿着第一方向运动；以及
    第二推进结构，所述第二推进机构配置为使所述涂覆头沿着第二方向运动。
  8. 如权利要求7所述的液态光固化胶涂覆装置，其中，所述第一推进机构与所述旋转机构相连，所述第一推进机构通过带动所述旋转机构从而使所述涂覆头沿着第一方向运动；所述第二推进机构与所述第一推进机构相连，所述第二推进机构通过带动所述第一推进机构使得所述涂覆头沿着第一方向运动。
  9. 如权利要求7或8所述的液态光固化胶涂覆装置，其中，所述旋转机构配置为绕垂直于所述第一方向和所述第二方向所在平面的轴旋转。
  10. 如权利要求9所述的液态光固化胶涂覆装置，其中，所述预固化光源 的出光口在垂直于所述第一方向和所述第二方向所在平面的方向上的尺寸大于或等于所述涂覆头的出胶口在垂直于所述第一方向和所述第二方向所在平面的方向上的尺寸。
  11. 如权利要求7或8所述的液态光固化胶涂覆装置，其中，所述第一推进机构包括第一方向丝杠；所述第二推进机构包括第二方向丝杠。
  12. 如权利要求1或2所述的液态光固化胶涂覆装置，其中，所述预固化光源包括激光发射器。
  13. 如权利要求1或2所述的液态光固化胶涂覆装置，其中，所述预固化光源包括固化灯和遮光板，所述遮光板包裹所述固化灯以使所述预固化光源发射平行固化光。
  14. 如权利要求13所述的液态光固化胶涂覆装置，其中，所述遮光板靠近所述固化灯的一侧设有反射膜。
  15. 一种使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，其中，所述液态光固化胶涂覆装置包括：涂覆头，所述涂覆头配置为涂覆液态光固化胶；以及预固化光源，所述预固化光源固定在所述涂覆头上并且配置为在所述涂覆头涂覆所述液态光固化胶的同时预固化所述涂覆头涂覆的所述液态光固化胶，所述使用液态光固化胶涂覆装置涂覆液态光固化胶的方法包括：
    使用所述涂覆头在所述待涂覆基板上涂覆所述液态光固化胶；以及
    使用所述预固化光源预固化所述液态光固化胶，
    其中，使用所述涂覆头在所述待涂覆基板上涂覆所述液态光固化胶与使用所述预固化光源预固化所述液态光固化胶同时进行。
  16. 如权利要求15所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，其中，所述待涂覆基板包括曲面。
  17. 如权利要求16所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，其中，所述预固化光源的出光方向与所述涂覆头中所述液态光固化胶的流出方向一致，所述液态光固化胶涂覆装置还包括：涂覆头移动机构，所述涂覆头移动机构与所述涂覆头连接且包括配置为使所述涂覆头转动的旋转机构；在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得所述涂覆头相对于所述待涂覆基板的涂覆面的涂覆速度保持一致。
  18. 如权利要求17所述的使用液态光固化胶涂覆装置涂覆液态光固化胶 的方法，其中，所述涂覆头移动机构还包括：第一推进机构，所述第一推进机构配置为使所述涂覆头沿着第一方向运动；以及第二推进结构，所述第二推进机构配置为使所述涂覆头沿着第二方向运动；所述曲面包括曲率为r的子曲面；所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法还包括：
    确定所述涂覆头相对于所述待涂覆基板表面的涂覆速度V；
    根据所述涂覆头的涂覆端点到所述待涂覆基板的涂覆面的距离d、所述子曲面的曲率r和涂覆速度V确定所述旋转机构的角速度ω；以及
    根据涂覆速度V在第一方向和第二方向的分速度Vx和Vy、所述涂覆头的涂覆端点到所述待涂覆基板的涂覆面的距离d、从所述旋转机构的轴心到所述涂覆头的涂覆端点的距离为R以及所述子曲面的曲率r来确定所述第一推进机构和所述第二推进机构的速度v1和v2，从而使得所述涂覆头相对于所述待涂覆基板的所述涂覆面的涂覆速度保持一致。
  19. 如权利要求17或18所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，其中，在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得所述液态光固化胶的流出方向与所述待涂覆基板的所述涂覆面垂直。
  20. 如权利要求17或18所述的使用液态光固化胶涂覆装置涂覆液态光固化胶的方法，其中，在使用所述涂覆头在待涂覆基板上涂覆液态光固化胶的过程中，使用涂覆头移动机构使得所述涂覆头相对于所述待涂覆基板的涂覆面的距离保持一致。
  21. 一种液态光固化胶的涂覆方法，包括：
    在待涂覆基板上涂覆液态光固化胶；以及
    预固化所述液态光固化胶，
    其中，在待涂覆基板上涂覆液态光固化胶和预固化所述液态光固化胶同时进行。
  22. 如权利要求21所述的液态光固化胶的涂覆方法，其中，所述待涂覆基板包括曲面。
  23. 如权利要求21-22任一项所述的液态光固化胶的涂覆方法，其中，在待涂覆基板上涂覆液态光固化胶的过程中，涂覆速度保持一致。
  24. 如权利要求21-22任一项所述的液态光固化胶的涂覆方法，其中，在待涂覆基板上涂覆液态光固化胶的过程中，所述液态光固化胶的流出方向与所 述待涂覆基板的涂覆面垂直。
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