CN110676383A - Curved substrate manufacturing device and manufacturing method using same - Google Patents
Curved substrate manufacturing device and manufacturing method using same Download PDFInfo
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- CN110676383A CN110676383A CN201910934406.XA CN201910934406A CN110676383A CN 110676383 A CN110676383 A CN 110676383A CN 201910934406 A CN201910934406 A CN 201910934406A CN 110676383 A CN110676383 A CN 110676383A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention provides a manufacturing device of a curved substrate and a manufacturing method adopting the device. The manufacturing device comprises: a first shaped body including a first surface in a curved state; the second shaping body comprises a second surface and a third surface which are back to back, the second surface and the first surface are oppositely arranged and are in a curved surface state, a bending shaping cavity is formed between the second surface and the first surface, and the shape and the size of the bending shaping cavity are the same as those of the curved surface substrate to be shaped; a light-transmitting part is formed on the second shaping body, and the area except the light-transmitting part on the third surface is formed as a light-shielding part; the shape and the size of the light-transmitting part or the light-shielding part are the same as those of the groove to be formed on the curved substrate to be formed; and the irradiation light source is used for providing irradiation light emitted towards the third surface, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part. The device can be used for manufacturing the grooves in the curved-surface substrate.
Description
Technical Field
The invention relates to the technical field of display manufacturing, in particular to a manufacturing device of a curved substrate and a manufacturing method adopting the device.
Background
An organic light-emitting diode (OLED) display has the characteristics of high luminance, wide viewing angle, fast response speed, ultra-thinness, light weight, and the like, and can be manufactured on a flexible substrate, and thus has received wide attention of people.
An OLED display generally includes an OLED display panel and a flexible OLED screen disposed on the OLED display panel. The manufacture of the grooves on the substrate becomes an essential process when the OLED display panel is manufactured. For example, when the OLED light emitting layer is manufactured by an inkjet printing method, before the inkjet printing process is performed, a pixel defining ink collecting groove needs to be formed on the substrate, so that an ink droplet of a light emitting material can be formed in the pixel defining ink collecting groove to form a light emitting material layer.
For the curved-surface OLED display panel, the curvature change of the curved-surface substrate is adapted, and the pixel-defined ink accumulation groove on the substrate should also have a certain curvature. In the prior art, a curved substrate with a certain curvature is usually manufactured by performing exposure etching on a planar substrate to form a groove, and then bending the substrate, however, the curvature of the manufactured pixel defining ink collecting groove cannot adapt to the curvature of the curved substrate, and the shape and size of the actual pixel unit formed by bending are not in accordance with the shape and size of the originally designed pixel unit, so that the image quality and color of the OLED display panel are abnormal when the OLED display panel displays images.
Therefore, how to manufacture the slot with the required bending curvature on the curved substrate becomes an important problem to be solved in the manufacturing process of the curved OLED display panel.
Disclosure of Invention
The invention aims to provide a manufacturing device of a curved substrate and a manufacturing method adopting the device, which can realize the manufacturing of a groove on the curved substrate.
The invention provides a curved substrate manufacturing device, which comprises:
a first shaped body including a first surface in a curved state;
the second shaping body comprises a second surface and a third surface which are opposite to each other, the second surface and the first surface are arranged oppositely and are in a curved surface state, a bending shaping cavity is formed between the second surface and the first surface, and the shape and the size of the bending shaping cavity are the same as those of the curved surface substrate to be shaped;
a light-transmitting portion penetrating the second surface and the third surface is formed on the second shaping body, and a light-shielding portion is formed in a region other than the light-transmitting portion on the third surface; the shape and the size of the light-transmitting part or the light-shielding part are the same as those of the groove to be formed on the curved substrate to be formed;
and the irradiation light source is used for providing irradiation light emitted towards the third surface, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part.
Optionally, the curved substrate manufacturing apparatus includes a second shaping body, wherein the second shaping body includes a second hollow space, the second shaping body is disposed in the second hollow space, at least a portion of a surface of the second shaping body opposite to an inner wall surface of the second hollow space is formed as the second surface, and the inner wall surface of the second hollow space is formed as the first surface.
Optionally, in the device for manufacturing a curved substrate, the first surface and the second surface are formed as cylindrical surfaces with different diameters and are arranged at the same center line;
the spacing space between the first surface and the second surface is formed into the curved shaped cavity.
Optionally, the curved substrate manufacturing apparatus includes a second hollow space, an inner wall surface of the second hollow space is opposite to the first surface, and the inner wall surface of the second hollow space is formed as a cylindrical surface.
Optionally, the third surface is formed as a cylindrical surface having a diameter different from that of the second surface and is disposed on the same center line as the second surface.
Optionally, in the apparatus for manufacturing a curved substrate, a light emitting surface of the irradiation light source is opposite to at least a partial region of the third surface, the light emitting surface is formed as a curved arc surface, and a curvature center is located on a side of the light emitting surface close to the third surface.
Optionally, the curved substrate manufacturing apparatus further includes a first end surface adjacent to the first surface, the second shaping body further includes a second end surface adjacent to the second surface, and the first end surface and the second end surface are located on the same side of the curved shaping cavity; first terminal surface with be provided with the extension protrusion on one of them of second terminal surface, first terminal surface with be provided with the mounting groove on one of them another of second terminal surface, through the extension protrusion with the cooperation of mounting groove is connected, first design with can dismantle the connection between the second design body.
Optionally, in the device for manufacturing a curved substrate, an injection port communicating with the curved shaping cavity is formed in the second shaping body;
wherein, the making device still includes:
an injection molding assembly configured to input a substrate forming material into the curved shaped cavity through the injection port.
Optionally, the curved substrate manufacturing apparatus, wherein the injection molding assembly includes:
the injection molding device comprises a filling cavity, a movable piston is arranged in the filling cavity, the filling cavity is communicated with an injection port through an injection molding pipeline, and a three-way valve is arranged on the injection molding pipeline;
a material storage chamber configured to store the substrate making material, and the material storage chamber is communicated with the injection line through the three-way valve;
a drive motor coupled to the piston and configured to drive the piston to move within the perfusion chamber.
The embodiment of the invention also provides a manufacturing method of the manufacturing device adopting the curved substrate, wherein the method comprises the following steps:
forming a flexible substrate material layer in the bending and shaping cavity;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending shaping cavity through the light transmission part, and the region, corresponding to the light transmission part, on the flexible substrate material layer is exposed;
and taking the exposed flexible substrate material layer out of the bending shaping cavity, and carrying out cleaning operation after exposure on the exposed flexible substrate material layer to obtain the flexible substrate with the groove.
Optionally, in the manufacturing method, when the shape and the size of the light-transmitting portion are the same as those of the to-be-molded groove in the to-be-molded curved substrate, in the step of forming the flexible substrate material layer in the bending and shaping cavity, the flexible substrate material layer is in a solid state;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part, and in the step of exposing the area, corresponding to the light transmission part, on the flexible substrate material layer, the irradiation light enables the area, corresponding to the light transmission part, on the flexible substrate material layer to be in a liquid state;
the step of performing post-exposure cleaning operation on the exposed flexible substrate material layer comprises:
and cleaning the liquid area corresponding to the light transmission part on the flexible substrate material layer by using a cleaning solution, and forming a groove on the flexible substrate material layer to obtain the flexible substrate with the groove.
Optionally, in the manufacturing method, when the shape and the size of the light shielding portion are the same as those of the to-be-molded slot on the to-be-molded curved substrate, in the step of forming the flexible substrate material layer in the curved shaped cavity, the flexible substrate material layer is in a liquid state;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part, and in the step of exposing the area, corresponding to the light transmission part, on the flexible substrate material layer, the irradiation light enables the area, corresponding to the light transmission part, on the flexible substrate material layer to be in a solid state;
the step of performing post-exposure cleaning operation on the exposed flexible substrate material layer comprises:
and cleaning the liquid area corresponding to the light shielding part on the flexible substrate material layer by using a cleaning solution, and forming a groove on the flexible substrate material layer to obtain the flexible substrate with the groove.
At least one of the technical schemes of the invention has the following beneficial effects:
according to the manufacturing device of the curved substrate and the manufacturing method adopting the manufacturing device, the shape and the size of the curved cavity are the same as those of the curved substrate to be molded, so that the flexible substrate arranged in the curved cavity can meet the designed curvature requirement; on the basis, as the shape and the size of the light transmission part or the light shielding part are the same as those of the to-be-formed slot on the to-be-formed curved substrate, when the irradiation light is emitted by the irradiation light source and transmitted to the inside of the bending and shaping cavity, and the flexible substrate material in the bending and shaping cavity is exposed, the exposure area or the non-exposure area of the flexible substrate material can be made to be in accordance with the shape and the size of the to-be-formed slot on the curved substrate, and the slot with the required bending degree and size requirements can be made on the curved substrate by utilizing the exposure area or the non-exposure area, so that the made slot is ensured to be in accordance with the actual design requirements of the slot.
Drawings
Fig. 1 is a schematic plan view of a device for manufacturing a curved substrate according to an embodiment of the present invention;
fig. 2 is a schematic plan view illustrating a second molding body according to an embodiment of the present invention;
fig. 3 is a schematic plan view illustrating a second molding member according to another embodiment of the present invention;
fig. 4 is a schematic plan view of a device for manufacturing a curved substrate according to a second embodiment of the present invention;
fig. 5 is a schematic perspective view of a second shaping body according to a second embodiment of the present invention;
fig. 6 is a schematic plan view of a device for manufacturing a curved substrate according to a third embodiment of the present invention;
fig. 7 is a schematic flow chart of the manufacturing method according to the embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In order to realize the manufacture of the slots on the curved substrate and ensure that the actual size of the slots manufactured on the curved substrate is consistent with the design size, the embodiment of the invention provides a manufacturing device of the curved substrate, wherein a first shaping body and a second shaping body are utilized to form a curved shaping cavity for accommodating the curved substrate to be formed, so that the flexible substrate arranged in the curved shaping cavity is formed into the curved substrate to be formed by utilizing the bending state of the curved shaping cavity; on the basis, the irradiation light source emits irradiation light towards the second shaping body, the light transmission parts penetrating through the second surface and the third surface of the second shaping body enable the irradiation light to be transmitted to the inside of the bent shaping cavity, the flexible substrate material is exposed, and the required slot is formed.
As shown in fig. 1, the apparatus for manufacturing a curved substrate according to an embodiment of the present invention includes:
a first shaped body 100 including a first surface 110 in a curved state;
the second shaping body 200 comprises a second surface 210 and a third surface 220 which are opposite to each other, the second surface 210 and the first surface 110 are arranged oppositely and are in a curved surface state, a curved shaping cavity 300 is formed between the second surface 210 and the first surface 110, and the shape and the size of the curved shaping cavity 300 are the same as those of a curved substrate to be shaped;
on the second shaped body 200, a light-transmitting portion 230 (as shown in fig. 2 and 3) penetrating through the second surface 210 and the third surface 220 is formed, and an area of the third surface 220 except the light-transmitting portion 230 is formed as a light-shielding portion 240; the shape and the size of the light-transmitting part 230 or the light-shielding part 240 are the same as those of the groove to be formed on the curved substrate to be formed;
the irradiation light source 400 is configured to provide irradiation light emitted toward the third surface 220, so that the irradiation light can be transmitted to the inside of the bending shaped cavity 300 through the light-transmitting portion 230.
According to the manufacturing device provided by the embodiment of the invention, as the shape and the size of the bending and shaping cavity 300 are the same as those of the curved substrate to be shaped, the flexible substrate arranged in the bending and shaping cavity 300 can meet the designed bending requirement; on the basis, as the shape and the size of the light transmission part or the light shielding part are the same as those of the to-be-formed slot on the to-be-formed curved substrate, when the irradiation light is emitted by the irradiation light source and transmitted to the inside of the bending and shaping cavity, and the flexible substrate material in the bending and shaping cavity is exposed, the exposure area or the unexposed area of the flexible substrate material can be made to conform to the shape and the size of the to-be-formed slot on the curved substrate, and the slot with the required bending degree and size requirement can be made on the curved substrate by utilizing the exposure area or the unexposed area.
In the manufacturing apparatus according to the embodiment of the present invention, as shown in fig. 2 and fig. 3, in order to ensure that the shape and the size of the light-transmitting portion 230 or the light-shielding portion 240 on the third surface 220 are the same as those of the to-be-formed groove on the curved substrate to be formed, optionally, the third surface 220 is formed into a curved surface having the same shape as the first surface 110, so as to effectively ensure that the groove with the required curvature and size can be formed on the flexible substrate material of the curved cavity 300 through the light-transmitting portion 230 or the light-shielding portion 240.
In an embodiment, referring to the schematic plan view of the second shaping body 200 shown in fig. 2, taking the fabrication of a quadrilateral slot on a curved substrate as an example, in this embodiment, with reference to fig. 1 and fig. 2, a light-transmitting portion 230 is formed on the second shaping body 200 by penetrating through the second surface 210 and the third surface 220, and the shape and the size of the light-transmitting portion 230 are the same as those of the slot to be formed on the curved substrate to be formed. In this embodiment, a plurality of separated quadrilateral grooves need to be formed on the curved substrate, so that a plurality of light-transmitting portions 230 on the second shaping body 200 are separated from each other.
In this embodiment, when the shape and the size of the light-transmitting portion 230 on the second shaping body 200 are the same as those of the groove to be formed on the curved substrate to be formed, the flexible substrate material layer in the curved shaping cavity 300 is in a solid state, the irradiation light source 400 emits light toward the second shaping body 200, so that the flexible substrate material layer is converted from the solid state into liquid irradiation light, when the irradiation light is transmitted to the flexible substrate material layer through the light-transmitting portion 230, the area on the flexible substrate material layer corresponding to the light-transmitting portion is in a liquid state, and then the area on the flexible substrate material layer in the liquid state is removed by using the cleaning solution, that is, the groove corresponding to the area of the light-transmitting portion 230 can be formed on the flexible substrate material layer, so as to obtain the flexible substrate with the groove.
In another embodiment, referring to the schematic plan view of the second shaping body 200 shown in fig. 3, in this embodiment, with reference to fig. 1 and fig. 3, a light-transmitting portion 230 is formed on the second shaping body 200 by penetrating the second surface 210 and the third surface 220, and an area outside the light-transmitting portion 230 is formed as a light-shielding portion 240, wherein the shape and size of the light-shielding portion 230 are the same as those of a groove to be formed on a curved substrate to be formed.
Similarly, in the present embodiment, since a plurality of grooves which are separated from each other and have a quadrilateral shape need to be formed on the curved substrate, in this embodiment, a plurality of light-shielding portions 240 on the second fixing member 200 are separated from each other.
In this embodiment, when the shape and the size of the light shielding portion 230 are the same as those of the to-be-molded groove on the to-be-molded curved substrate, the flexible substrate material layer disposed in the curved shaping cavity is in a liquid state, the irradiation light source 400 emits irradiation light toward the second shaping body 200, which can convert the flexible substrate material layer from the liquid state to the solid state, when the irradiation light is transmitted to the flexible substrate material layer through the light transmitting portion 230, an area of the flexible substrate material layer corresponding to the light transmitting portion 230 is in a solid state, and an area corresponding to the light shielding portion 240 is in a liquid state, and then the cleaning liquid is used to clean the area of the flexible substrate material layer in a liquid state, that is, the groove corresponding to the area of the light transmitting portion 230 can be formed on the flexible substrate material layer, so as to obtain the flexible substrate with the groove.
As shown in fig. 4, the apparatus for manufacturing a curved substrate according to another embodiment of the present invention includes a first molding body 100, a second molding body 200, and an irradiation light source 400, as in the previous embodiment.
In this embodiment, the second shaping body 200 includes a first hollow space, and the first shaping body 100 is disposed in the first hollow space. At least a part of a surface of the first molded body 100 opposite to an inner wall surface of the first hollow space is formed as a first surface 110, and a part of the inner wall surface of the first hollow space opposite to the first surface 110 is formed as a second surface 210.
With this embodiment, the first shaping body 110 is disposed inside the second shaping body 200 and spaced from the second shaping body 200, and the outer surface of the first shaping body 110 is opposite to the inner wall surface of the second shaping body 200, wherein at least a portion of the outer surface of the first shaping body 110 is formed as the first surface 110, the inner wall surface of the second shaping body 200 is formed as the second surface opposite to the first surface 110, and the first surface 110 and the second surface 210 are both curved, and the spaced spaces are formed as the curved shaping cavity 300.
Alternatively, the first surface 110 and the second surface 210 are formed as cylindrical surfaces having different diameters and are disposed concentrically;
the spaced-apart space between the first surface 110 and the second surface 210 is formed as a curved shaped cavity 300.
With this embodiment, as shown in fig. 4, the curved shaped cavity 300 is formed as a circular space in this embodiment.
Alternatively, the first molded body 100 includes a second hollow space having an inner wall surface facing away from the first surface 110, and the inner wall surface of the second hollow space is formed as a cylindrical surface.
Further, optionally, the third surface 220 is formed as a cylindrical surface having a different diameter than the second surface 210 and is disposed concentrically with the second surface 210.
Based on the above implementation structure, in the manufacturing apparatus of the curved substrate according to the embodiment of the present invention, the first shaping body 110 and the second shaping body 200 may both be formed as a hollow cylinder structure, that is, both are formed as a cylindrical structure, the first shaping body 110 is disposed inside the second shaping body 200, and at least a portion of the curved shaping cavity 300 formed between the first shaping body 110 and the second shaping body 200 has the same shape and size as those of the curved substrate to be formed, so that the flexible substrate disposed in the curved shaping cavity 300 can form the curved substrate to be formed by using the curved state of the curved shaping cavity 300.
It should be noted that the shape of the curved shaped cavity 300 formed in the above embodiments is only an example, and is not limited thereto, and the shape and the size of the curved substrate to be formed need to be set when the method is implemented.
In the embodiment of the present invention, in order to ensure that the shape and the size of at least a portion of the curved shaped cavity 300 formed between the first shaped body 110 and the second shaped body 200 are the same as those of the curved substrate to be shaped, the diameter of the first surface 110 of the first shaped body 110 is equal to the diameter of the film forming curved machine for manufacturing the flexible curved substrate.
In one embodiment, the second shaped body 200 is made of a metal foil, preferably an aluminum foil. By utilizing the variable bending property of the metal foil, the metal foil can be bent into a required shape, such as a cylindrical structure shown in fig. 4; in addition, when the second shaping body 200 is made of a metal foil, the second shaping body 200 with a light-transmitting pattern can be formed by performing laser engraving on the metal foil or performing one-time film pressing on the metal foil, as shown in fig. 5, which has the advantages of simple manufacturing process and low cost.
In another embodiment, optionally, the second shaped body 200 may also include a transparent cylindrical substrate and a light-shielding film disposed on the cylindrical substrate. The light-shielding film has a predetermined pattern on the cylindrical base body, and corresponds to the light-shielding portion 240 in the form shown in fig. 2 or 3, and the region other than the light-shielding portion 240 corresponds to the light-transmitting portion 230, and is capable of transmitting light. Optionally, a light-shielding film may be formed on the transparent cylindrical substrate by a deposition process to ensure that the precision of the formed light-shielding portion 230 is higher, and further ensure that the precision of the groove formed on the flexible substrate material layer is higher in the flexible substrate manufacturing process.
In the embodiment of the present invention, the first molded body 100 is made of a light-transmitting material, and has a good light-transmitting property, and optionally, may be made of a quartz material, so that the effect of assisting curing of the first molded body 100 can be achieved by the irradiation light source 400.
Referring to fig. 4, in the manufacturing apparatus of the curved substrate according to the embodiment of the invention, the light emitting surface 410 of the light source 400 is opposite to at least a partial region of the third surface 220, and the light emitting surface 410 is formed into a curved arc surface, and the curvature center is located on a side of the light emitting surface 410 close to the third surface 220.
Based on the above-mentioned implementation structure, the light emitting surface 410 is made into a curved arc surface and is curved toward the second shaping body 200, so that the light emitted from the light source 400 can be more uniformly irradiated on the third surface 220, thereby improving the uniformity of the exposure of the flexible substrate material layer disposed in the curved shaping cavity 300 through the light-transmitting portion 230 on the third surface 220. To further improve the uniformity in exposure, optionally, the bending curvature of the light emitting surface 410 is equal to the bending curvature of the opposite region of the third surface 220 and the light emitting surface 410.
Optionally, in the apparatus for manufacturing a curved substrate according to the embodiment of the present invention, the first shaping body 100 and the second shaping body 200 are separable, so that a flexible substrate material layer can be placed in the curved shaping cavity 300, or the flexible substrate material layer can be taken out from the curved shaping cavity 300.
Wherein, be one of them implementation mode of separable between first design body 100 and the second design body 200, first design body 100 and the equal detachably of second design body 200 are installed on the base, through the equipment and the separation that compare in this base respectively, realize the equipment and the dismantlement between first design body 100 and the second design body 200.
Another embodiment that the first shaping body 100 and the second shaping body 200 are separable is provided, the first shaping body 100 further includes a first end surface (for example, disposed on the bottom surface of the first shaping body 100) adjacent to the first surface 210, the second shaping body 200 further includes a second end surface (for example, disposed on the bottom surface of the second shaping body 200) adjacent to the second surface 210, and the first end surface and the second end surface are located on the same side of the curved shaping cavity 300; one of the first end face and the second end face is provided with an extending protrusion, the other one of the first end face and the second end face is provided with a mounting groove, the first shaping body 100 and the second shaping body 200 are detachably connected through the matching connection of the extending protrusion and the mounting groove.
Through the connection structure who mutually supports between the above-mentioned extension protrusion and the mounting groove, can realize dismantling between first design body 100 and the second design body 200 and be connected.
It should be noted that, the detachable connection between the first molding body 100 and the second molding body 200 can be realized in various forms, and the connection manner is only an example, and the detailed description of each implementation structure is not separately provided herein.
As shown in fig. 6, the manufacturing apparatus of another embodiment of the present invention includes a first molding body 100, a second molding body 200, and an irradiation light source 400, as in the embodiment shown in fig. 4 and 1.
Further, in the embodiment, the second shaping body 200 is provided with an injection port 310 communicated with the curved shaping cavity 300;
wherein, the making device still includes:
the injection molding assembly 500 is configured to input a substrate forming material into the bending mold cavity 300 through the injection port 310.
By providing the injection molding assembly 500, a material liquid for preparing a flexible substrate can be input into the bending-shaped cavity 300 through the injection port, so as to prepare a flexible curved substrate in the bending-shaped cavity 300.
The specific structure of the injection module 500 will be described in detail below by taking as an example the case where the injection module is provided in the manufacturing apparatus of the embodiment shown in fig. 4. However, the manufacturing apparatus for installing the injection module 500 is not limited to the embodiment shown in fig. 4.
As shown in connection with fig. 6, injection molding assembly 500 includes:
a movable piston 511 is arranged in the injection cavity 510, the injection cavity is communicated with the injection port 310 through an injection pipeline 512, and a three-way valve 513 is arranged on the injection pipeline 512;
a material storage chamber 520 configured to store a substrate making material, and the material storage chamber 520 is communicated with the injection line 512 through a three-way valve 513;
a drive motor 530 coupled to piston 511 and configured to drive piston 511 to move within perfusion chamber 510.
In the above-described embodiment, the piston 511 forms a sealed space between the inside of the filling chamber 510 and the inside of the filling chamber 510. Alternatively, the driving motor 530 is a high precision extrusion motor, and may be connected to the piston 511 via a mechanical screw injector rod 514, for driving the piston 511 to move along the axial direction of the perfusion chamber 510 via the mechanical screw injector rod 514, so as to increase or decrease the volume of the enclosed space in the perfusion chamber 510.
Further, a first end of the three-way valve 513 is connected to the filling cavity 510 through the injection pipeline 512, a second end is connected to the injection port 310 through the injection pipeline 512, and a third end is connected to the material storage cavity 520 through the injection pipeline 512. When the three-way valve 513 is in the first communication state, the first end is communicated with the second end, and the substrate manufacturing material in the injection cavity 510 can be input into the bending and shaping cavity 300 through the injection cavity 510 and the injection port 310 through the injection pipeline 512; when the three-way valve 513 is in the second communication state, the first end is communicated with the third end, and the substrate material stored in the material storage chamber 520 can be input into the injection chamber 510 through the injection line 512.
When the three-way valve 513 is in the second communication state, the driving motor 530 drives the piston 511 to move along the axial direction of the filling cavity 510, so that the closed space in the filling cavity 510 is increased, the air pressure in the filling cavity 510 is reduced, and the substrate manufacturing material stored in the material storage cavity 520 can be filled into the filling cavity 510; when the three-way valve 513 is in the first communication state, and the driving motor 530 drives the piston 511 to move along the axial direction of the injection cavity 510, so that the enclosed space in the injection cavity 510 is reduced, the internal air pressure is increased, and the substrate manufacturing material in the injection cavity 510 can be input into the bending-sizing cavity 300, so that the substrate manufacturing material is filled in the bending-sizing cavity 300.
Further, after the substrate manufacturing material is filled in the curved shaping cavity 300, the substrate manufacturing material is irradiated by the irradiation light source 400 through the second shaping body 200, and the region of the substrate manufacturing material in the curved shaping cavity 300 corresponding to the light-transmitting portion 230 is cured and converted into a solid state by combining with fig. 3; the area of the substrate material corresponding to the light-transmitting portion 230 is not cured and remains liquid. The cured part of the substrate material is formed into a base body of the flexible substrate, the uncured part corresponds to the slot on the flexible substrate, and the uncured part can be washed away by a detergent subsequently, so that the slot is formed.
It can be understood that, since the shape and size of the light shielding portion 240 of the second shaping body 200 are the same as those of the slot to be formed on the curved substrate to be formed, the slot formed on the substrate making material in the curved shaping cavity 300 in the above manner meets the shape and size requirements of the slot to be formed on the substrate to be formed.
In order to cure the substrate material, the irradiation light source 400 may be an ultraviolet light source that emits ultraviolet light. Specifically, the wavelength of the ultraviolet light that can realize the conversion of the substrate material from a liquid state to a solid state may be 365 nm.
By adopting the manufacturing device of the curved substrate provided by the embodiment of the invention, the flexible curved substrate can be positioned and formed through the bending and shaping cavity; based on this, can directly make the fluting on flexible crooked base plate for the fluting of making accords with the design size requirement of fluting on the curved surface base plate, solves conventional technology through make the fluting on planar substrate, later make planar substrate bending deformation become crooked base plate, causes the fluting on the base plate to be not conform to the problem of curved state size requirement.
In the embodiment of the present invention, the open groove may be, but not limited to, an ink collecting groove capable of only defining an ink collecting groove for a pixel in an OLED display manufacturing process. It can be understood that any process requiring the manufacturing of the groove on the flexible curved substrate can be adopted in the manufacturing device of the curved substrate according to the embodiment of the present invention.
Another embodiment of the present invention further provides a manufacturing method of a manufacturing apparatus using the curved substrate, as shown in fig. 7 in combination with fig. 1, 4 and 6, the method including:
s710, forming a flexible substrate material layer in the bending and shaping cavity 300;
s720, the irradiation light source 400 emits irradiation light, so that the irradiation light can be transmitted to the inside of the curved shaped cavity 300 through the light-transmitting portion 230, and expose the region of the flexible substrate material layer corresponding to the light-transmitting portion 230;
s730, after taking the exposed flexible substrate material layer out of the curved shaping cavity 300, performing post-exposure cleaning operation on the exposed flexible substrate material layer to obtain the flexible substrate with the slot formed therein.
By adopting the manufacturing method of the curved substrate of the manufacturing device provided by the embodiment of the invention, as the shape and the size of the bending shaping cavity 300 are the same as those of the curved substrate to be molded, the deformation amount of the flexible substrate when the flexible substrate is fixed on the film-forming curved-surface machine table to form a preset bending form is considered in the manufacturing process of the flexible curved substrate, so that the shape and the size of the groove directly manufactured on the flexible curved substrate meet the design requirements, the problem that the groove on the substrate does not meet the size requirements of the bending state due to the fact that the groove is manufactured on the planar substrate and then the planar substrate is bent and deformed into the bent substrate in the conventional technology is solved, and the flexible curved substrate does not need to be manufactured again according to the bending deformation amount, so that the purposes of reducing the production cost and saving.
In one embodiment of the manufacturing method according to the embodiment of the present invention, as shown in fig. 3, when the shape and the size of the light shielding portion 240 are the same as those of the to-be-formed slot on the to-be-formed curved substrate, in step S710, in the step of forming the flexible substrate material layer in the curved shaped cavity 300, the flexible substrate material layer is in a liquid state;
in step S720, the irradiation light source 400 emits irradiation light to enable the irradiation light to be transmitted to the inside of the bending shaping cavity 300 through the light-transmitting portion 230, and in the step of exposing the region of the flexible substrate material layer corresponding to the light-transmitting portion 230, the irradiation light enables the region of the flexible substrate material layer corresponding to the light-transmitting portion 230 to be in a solid state;
in step S730, the step of performing a post-exposure cleaning operation on the exposed flexible substrate material layer includes:
and cleaning the liquid area corresponding to the light shielding part 240 on the flexible substrate material layer by using a cleaning solution, and forming a groove on the flexible substrate material layer to obtain the flexible substrate with the groove.
Specifically, when the manufacturing method according to the above embodiment is adopted, the adopted manufacturing apparatus further includes an injection molding assembly 500 capable of inputting the substrate manufacturing material into the curved shaping cavity 300 through the injection port 310, as shown in fig. 6.
In addition, the irradiation light source 400 of the manufacturing apparatus is an ultraviolet light source, and the emitted ultraviolet light can convert the liquid flexible substrate material layer into a solid state, for example, the wavelength of the ultraviolet light having this characteristic is 365 nm.
In this embodiment, before step S710, the method further includes:
the injection molding assembly 500 inputs the substrate manufacturing material into the bending and shaping cavity 300, so that a liquid flexible substrate material layer is formed in the bending and shaping cavity 300, and the liquid flexible substrate material layer fills the bending and shaping cavity 300, so that the flexible substrate material layer is cured in the bending and shaping cavity 300 to form the flexible curved substrate with the required shape.
The manner and process of inputting the substrate forming material into the curved shaped cavity 300 through the injection molding assembly 500 can be combined with fig. 6 and refer to the above detailed description, and will not be described herein.
Further, in this embodiment, in step S720, the flexible substrate material layer corresponding to the light-transmitting portion 230 of the second mold 200 is exposed to light by the irradiation light source 400, and the flexible substrate material layer corresponding to the light-transmitting portion 230 is cured, so that the flexible substrate material layer corresponding to the light-shielding portion 240 of the second mold 200 remains in a liquid state.
Further, before step S730, the exposed flexible substrate material layer needs to be separated from the bending shaped cavity 300. Because the first shaping body 100 and the second shaping body 200 are detachably connected, when the flexible substrate material layer needs to be separated from the bending shaping cavity 300, the second shaping body 200 positioned on the outer layer and the first shaping body 100 positioned on the inner layer can be separated, and then the flexible substrate material layer is peeled off from the first surface 110 of the first shaping body 100, so that the flexible substrate material layer can be separated from the bending shaping cavity 300.
In step S730, when the post-exposure cleaning operation is performed on the exposed flexible substrate material layer, the flexible substrate material layer corresponding to the light shielding portion 240 of the second fixing member 200 is not irradiated with the ultraviolet light and is not cured, and therefore, the material of the portion can be removed by the cleaning solution. Therefore, in step S730, the partial material of the flexible substrate material layer corresponding to the light-shielding portion 240 of the second fixing member 200 is removed by the cleaning liquid, and the slit corresponding to the light-shielding portion 240 is formed in the flexible substrate material layer. In this step, when the uncured flexible substrate material is removed by the cleaning liquid, the cleaning liquid may be sprayed out to remove the uncured flexible substrate material efficiently and thoroughly.
Note that the groove formed in the flexible substrate material layer according to this embodiment may be formed in the form of an opening.
Through the process, the slotting pattern with the shape and the size meeting the design requirements is manufactured on the flexible curved substrate, and the problem that the slotting on the flexible curved substrate does not meet the design requirements due to the fact that the slotting pattern is manufactured on the flexible substrate which is a plane in the conventional technology and then the flexible substrate is bent to cause the slotting pattern to deform in the conventional technology can be solved.
On the basis of manufacturing the curved substrate through the above process, the manufacturing method according to the embodiment of the present invention may further include the following steps:
the surface of the flexible substrate material layer on which the groove pattern is formed is cleaned with pure water and alcohol. The cleaning solution remained on the surface of the flexible substrate material layer in the process can be cleaned through the step, and because the cleaning solution is generally corrosive, the cleaning solution remained can be cleaned, so that the corrosion influence of the cleaning solution on the flexible substrate material layer can be eliminated;
drying the surface of the cleaned flexible substrate material layer by using an air knife;
and curing the dried flexible substrate material layer again by using an ultraviolet light source to form the flexible curved substrate.
Because the flexible substrate material layer corresponding to the light-shielding portion 240 of the second shaping body 200 is not cured, after the partial material of the flexible substrate material layer corresponding to the light-shielding portion 240 of the second shaping body 200 is removed, the remaining material of the flexible substrate material layer corresponding to the light-shielding portion 240 of the second shaping body 200 is not cured, so that the flexible substrate material layer is cured again in the step, the remaining material of the flexible substrate material layer corresponding to the light-shielding portion 240 of the second shaping body 200 can be cured, and the quality of the manufactured flexible curved substrate is improved.
Preferably, in the process of curing the flexible substrate material layer again, the flexible substrate material layer may be first soaked in the exposure liquid, and then cured again by using the ultraviolet light source, which can improve the curing uniformity. After the flexible substrate material layer is immersed in the exposure liquid and cured again, the surface of the formed flexible curved substrate may be preferably blown dry by an air knife.
And then, detecting the surface condition of the formed flexible curved substrate. The surface conditions in the step include the conditions of edge size, surface flatness, surface particles and the like, and the flexible curved substrate with unqualified surface conditions can be screened out by detecting the surface conditions so as to improve the quality of the slot prepared by using the flexible curved substrate.
In another embodiment of the manufacturing method according to the embodiment of the present invention, as shown in fig. 2, when the shape and the size of the light-transmitting portion 230 are the same as those of the to-be-formed groove on the to-be-formed curved substrate, in step S710, in the step of forming the flexible substrate material layer in the bending-shaped cavity 300, the flexible substrate material layer is in a solid state;
in step S720, the irradiation light source 400 emits irradiation light to enable the irradiation light to be transmitted to the inside of the bending shaping cavity 300 through the light-transmitting portion 230, and in the step of exposing the region of the flexible substrate material layer corresponding to the light-transmitting portion 230, the irradiation light enables the region of the flexible substrate material layer corresponding to the light-transmitting portion 230 to be in a liquid state;
in step S730, the step of performing a post-exposure cleaning operation on the exposed flexible substrate material layer includes:
the cleaning solution is used to clean the liquid region of the flexible substrate material layer corresponding to the light transmission portion 230, and a groove is formed in the flexible substrate material layer, thereby obtaining a flexible substrate with a groove.
In this embodiment, the irradiation light source 400 may be an ultraviolet light source, and the emitted ultraviolet light can convert the solid flexible substrate material layer into a liquid state, for example, the wavelength of the ultraviolet light having this characteristic is 245 nm.
Further, in this embodiment, in step S710, a flexible substrate material layer formed of a gel-like or solid-state flexible substrate material is placed in the bending shaped cavity 300. The manufacturing process of the flexible substrate material layer can be as follows: the liquid substrate manufacturing material is used for forming a coating on a flat surface, and then ultraviolet light is used for irradiating the coating, so that the substrate manufacturing material in the coating is subjected to primary curing from the liquid state and is converted into a jelly or a solid state, and a required flexible substrate material layer is formed.
In step S720, the flexible substrate material layer corresponding to the light-transmitting portion 230 of the second calibration body 200 is exposed by the irradiation light source 400, so that the flexible substrate material layer corresponding to the light-transmitting portion 230 is changed from solid state or gel state to liquid state, and the flexible substrate material layer corresponding to the light-shielding portion 240 of the second calibration body 200 is not irradiated by the ultraviolet light and remains in solid state or gel state.
Further, before step S730, the exposed flexible substrate material layer needs to be separated from the bending shaped cavity 300. In particular, the first molding body 100 and the second molding body 200 are separated from each other, and the manner of separating the flexible substrate material layer from the curved molding cavity 300 can refer to the above embodiments, and will not be described herein.
In this embodiment, when the exposed flexible substrate material layer is cleaned in step S730, the flexible substrate material layer corresponding to the light-transmitting portion 230 of the second fixing member 200 is liquefied by being irradiated with ultraviolet light, and the material of the portion can be removed by the cleaning liquid. Therefore, in step S730, a part of the material of the flexible substrate material layer corresponding to the light-transmitting portion 230 of the second mold 200 is removed by the cleaning liquid, and a groove corresponding to the light-transmitting portion 230 is formed in the flexible substrate material layer. In this step, when the uncured flexible substrate material is removed by the cleaning liquid, the cleaning liquid may be sprayed out to remove the uncured flexible substrate material efficiently and thoroughly.
In step S720, when the flexible substrate material layer corresponding to the light transmission portion 230 of the second mold 200 is exposed by the irradiation light source 400 to change the flexible substrate material layer corresponding to the light transmission portion 230 from a solid state or a gel state to a liquid state, the thickness of the region of the flexible substrate material layer corresponding to the light transmission portion 230 from a solid state to a liquid state can be controlled by controlling the exposure intensity, and thus the groove formed in the flexible substrate material layer according to this embodiment may be formed in the form of a hole or a groove.
In addition, the manufacturing method of this embodiment is the same as that of the previous embodiment, and after the step S730, a process of cleaning the surface of the flexible substrate material layer on which the groove pattern is formed by using pure water and alcohol, a process of drying the surface of the cleaned flexible substrate material layer by using an air knife, a process of re-curing the dried flexible substrate material layer by using an ultraviolet light source, and a process of detecting the surface condition of the formed flexible curved substrate may be further included, and a specific manner of each process may be the same as that of the previous embodiment, and will not be described again.
The manufacturing device and the manufacturing method of the curved substrate can be applied to manufacturing of OLED curved substrates, the pixel defining ink accumulation grooves on the OLED curved substrate are manufactured, the curvature of the manufactured pixel defining ink accumulation grooves is ensured to be consistent with the shape and the size of pixel units on the OLED curved substrate to be manufactured, and a curved display with uniform image quality and color display can be manufactured.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. The utility model provides a curved surface base plate's making devices which characterized in that includes:
a first shaped body including a first surface in a curved state;
the second shaping body comprises a second surface and a third surface which are opposite to each other, the second surface and the first surface are arranged oppositely and are in a curved surface state, a bending shaping cavity is formed between the second surface and the first surface, and the shape and the size of the bending shaping cavity are the same as those of the curved surface substrate to be shaped;
a light-transmitting portion penetrating the second surface and the third surface is formed on the second shaping body, and a light-shielding portion is formed in a region other than the light-transmitting portion on the third surface; the shape and the size of the light-transmitting part or the light-shielding part are the same as those of the groove to be formed on the curved substrate to be formed;
and the irradiation light source is used for providing irradiation light emitted towards the third surface, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part.
2. The apparatus of claim 1, wherein the second molding member includes a first hollow space, wherein the first molding member is disposed inside the first hollow space, at least a portion of a surface of the first molding member facing an inner wall surface of the first hollow space is formed as the first surface, and a portion of the inner wall surface of the first hollow space facing the first surface is formed as the second surface.
3. The apparatus according to claim 2, wherein the first surface and the second surface are formed in cylindrical surfaces having different diameters and are disposed concentrically;
the spacing space between the first surface and the second surface is formed into the curved shaped cavity.
4. The apparatus according to claim 2 or 3, wherein the first shaped body includes a second hollow space, an inner wall surface of the second hollow space is opposite to the first surface, and the inner wall surface of the second hollow space is formed in a cylindrical surface.
5. The apparatus of claim 3, wherein the third surface is formed as a cylinder having a different diameter than the second surface and is concentric with the second surface.
6. The apparatus of claim 5, wherein a light emitting surface of the illumination source is opposite to at least a portion of the third surface, and the light emitting surface is formed as a curved surface with a center of curvature on a side of the light emitting surface close to the third surface.
7. The apparatus of any one of claims 1 to 3, wherein the first mold further comprises a first end surface adjacent to the first surface, the second mold further comprises a second end surface adjacent to the second surface, and the first end surface and the second end surface are located on the same side of the curved cavity; first terminal surface with be provided with the extension protrusion on one of them of second terminal surface, first terminal surface with be provided with the mounting groove on one of them another of second terminal surface, through the extension protrusion with the cooperation of mounting groove is connected, first design with can dismantle the connection between the second design body.
8. The apparatus for manufacturing a curved substrate according to any one of claims 1 to 3, wherein the second shaping body has an injection opening communicating with the curved shaping cavity;
wherein, the making device still includes:
an injection molding assembly configured to input a substrate forming material into the curved shaped cavity through the injection port.
9. The apparatus of claim 8, wherein the injection molding assembly comprises:
the injection molding device comprises a filling cavity, a movable piston is arranged in the filling cavity, the filling cavity is communicated with an injection port through an injection molding pipeline, and a three-way valve is arranged on the injection molding pipeline;
a material storage chamber configured to store the substrate making material, and the material storage chamber is communicated with the injection line through the three-way valve;
a drive motor coupled to the piston and configured to drive the piston to move within the perfusion chamber.
10. A method of manufacturing a device for manufacturing a curved substrate according to any one of claims 1 to 9, the method comprising:
forming a flexible substrate material layer in the bending and shaping cavity;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending shaping cavity through the light transmission part, and the region, corresponding to the light transmission part, on the flexible substrate material layer is exposed;
and taking the exposed flexible substrate material layer out of the bending shaping cavity, and carrying out cleaning operation after exposure on the exposed flexible substrate material layer to obtain the flexible substrate with the groove.
11. The method according to claim 10, wherein when the shape and size of the light-transmitting portion are the same as those of the groove to be formed in the curved substrate to be formed, the step of forming the flexible substrate material layer in the bending-shaped cavity is to form the flexible substrate material layer in a solid state;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part, and in the step of exposing the area, corresponding to the light transmission part, on the flexible substrate material layer, the irradiation light enables the area, corresponding to the light transmission part, on the flexible substrate material layer to be in a liquid state;
the step of performing post-exposure cleaning operation on the exposed flexible substrate material layer comprises:
and cleaning the liquid area corresponding to the light transmission part on the flexible substrate material layer by using a cleaning solution, and forming a groove on the flexible substrate material layer to obtain the flexible substrate with the groove.
12. The method according to claim 10, wherein when the shape and size of the light-shielding portion are the same as those of the slot to be formed in the curved substrate to be formed, the step of forming the flexible substrate material layer in the curved cavity is performed such that the flexible substrate material layer is in a liquid state;
the irradiation light source emits irradiation light, so that the irradiation light can be transmitted to the inside of the bending and shaping cavity through the light transmission part, and in the step of exposing the area, corresponding to the light transmission part, on the flexible substrate material layer, the irradiation light enables the area, corresponding to the light transmission part, on the flexible substrate material layer to be in a solid state;
the step of performing post-exposure cleaning operation on the exposed flexible substrate material layer comprises:
and cleaning the liquid area corresponding to the light shielding part on the flexible substrate material layer by using a cleaning solution, and forming a groove on the flexible substrate material layer to obtain the flexible substrate with the groove.
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Application publication date: 20200110 |