CN110228194B - 3D prints shade and 3D printing apparatus - Google Patents
3D prints shade and 3D printing apparatus Download PDFInfo
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- CN110228194B CN110228194B CN201910496070.3A CN201910496070A CN110228194B CN 110228194 B CN110228194 B CN 110228194B CN 201910496070 A CN201910496070 A CN 201910496070A CN 110228194 B CN110228194 B CN 110228194B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/286—Optical filters, e.g. masks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a 3D printing shading device and 3D printing equipment, and aims to solve the problem that the contrast of the 3D printing shading device in the prior art is low and the printing effect is influenced. The 3D prints shade includes: the pattern display structure is positioned on the microfluidic panel of the light-emitting surface of the pattern display structure; the pattern display structure comprises a plurality of pixel units, wherein each pixel unit is configured to transmit light or shield light according to a current picture to be printed; the microfluidic panel comprises a plurality of microfluidic units corresponding to the pixel units one by one, and each microfluidic unit is configured to have the same light shading or light transmitting performance with the corresponding pixel unit.
Description
Technical Field
The invention relates to the technical field of semiconductors, in particular to a 3D printing shading device and 3D printing equipment.
Background
3D printing (3DP), one of the rapid prototyping technologies, is a technology that constructs an object by printing layer by layer using an adhesive material such as powdered metal or plastic based on a digital model file.
However, the shading device of the 3D printing equipment in the prior art has the problems of low contrast and influence on printing effect.
Disclosure of Invention
The invention provides a 3D printing shading device and 3D printing equipment, which are used for solving the problems that the contrast of the 3D printing shading device in the prior art is low and the printing effect is influenced.
The embodiment of the invention provides a 3D printing shading device, which comprises: the pattern display structure is positioned on the microfluidic panel of the light-emitting surface of the pattern display structure; wherein the content of the first and second substances,
the pattern display structure comprises a plurality of pixel units, and each pixel unit is configured to transmit light or shield light according to a current picture to be printed;
the microfluidic panel comprises a plurality of microfluidic units corresponding to the pixel units one by one, and each microfluidic unit is configured to have the same light shading or light transmitting performance with the corresponding pixel unit.
In a possible embodiment, each microfluidic unit includes a control structure, a containing cavity, a liquid storage tank located at an edge of the containing cavity and communicated with the containing cavity, and a light-shielding fluid flowing between the containing cavity and the liquid storage tank;
the control structure is configured to control the light-shielding fluid to move into the accommodating cavity when the corresponding pixel unit is shielded from light, and control the light-shielding fluid to move into the liquid storage tank when the corresponding pixel unit is transmitted from light.
In a possible embodiment, each of the microfluidic cells further comprises: the transparent conductive fluid flows in the accommodating cavity and the liquid storage tank;
the control structure comprises a control electrode and a hydrophobic layer which are laminated, wherein the hydrophobic layer is positioned on one side of the control electrode, which faces away from the pattern display structure;
the control electrode is configured to load voltage when the corresponding pixel unit is transparent, control the transparent conductive fluid to move into the accommodating cavity, further squeeze the shading fluid into the liquid storage tank, and power off when the corresponding pixel unit is transparent, the transparent conductive fluid is moved into the liquid storage tank through the repulsion of the hydrophobic layer, and further squeeze the shading fluid into the accommodating cavity.
In a possible implementation manner, the accommodating cavity has an arc-shaped surface protruding towards a surface far away from the pattern display structure at least in the light emitting direction.
In one possible embodiment, the microfluidic panel comprises a first substrate and a second substrate which are oppositely arranged, the first substrate is positioned on one side of the second substrate facing the pattern display structure;
the accommodating cavity is positioned on the second substrate and is a first groove with an opening facing the first substrate.
In a possible embodiment, the reservoir is located on the first substrate and is a second groove with an opening facing the second substrate.
In a possible embodiment, the liquid storage tank has a ring shape surrounding the control electrode in an orthographic projection of the first substrate.
In one possible embodiment, the microfluidic cell is the same size as the pixel cell.
In one possible embodiment, the patterned display structure is a liquid crystal cell.
The embodiment of the invention also provides 3D printing equipment, which comprises the 3D printing shading device provided by the embodiment of the invention, and an ultraviolet light source positioned on one side of the pattern display structure, which is far away from the microfluidic panel.
The embodiment of the invention has the following beneficial effects: the 3D printing shading device provided by the embodiment of the invention comprises: the pattern display structure is positioned on the microfluidic panel of the light-emitting surface of the pattern display structure; the pattern display structure comprises a plurality of pixel units, wherein each pixel unit is configured to transmit light or shield light according to a current picture to be printed; the micro-fluidic panel comprises a plurality of micro-fluidic units which are in one-to-one correspondence with the pixel units, each micro-fluidic unit is configured to have the same shading or light transmitting performance with the corresponding pixel unit, and then when the pixel units of the pattern display structure are shading, the micro-fluidic units corresponding to the micro-fluidic units can have the corresponding shading performance, so that the positions can be further shaded, the situation that the pixel units of the image display structure cannot be completely shaded when in a black state and part of light penetrates through the pixel units in the black state is avoided, and the problems that the contrast of a 3D printing shading device is low and the 3D printing effect is affected are solved.
Drawings
Fig. 1 is a schematic structural diagram of a 3D printing shading device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural diagram of a microfluidic unit according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural view of a micro-fluidic unit when a light-shielding fluid provided in an embodiment of the present invention is located in an accommodating chamber;
fig. 4 is a schematic cross-sectional structural diagram of a microfluidic unit when a light-shielding fluid is located in a reservoir according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structural diagram of a microfluidic cell including a transparent conductive fluid according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structural view of a microfluidic unit when a transparent conductive fluid is moved into a liquid storage tank according to an embodiment of the present invention;
fig. 7 is a schematic top view of a microfluidic unit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a specific 3D printing shading device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
Referring to fig. 1, an embodiment of the present invention provides a 3D printing shading device, including: the pattern display structure 2 is positioned on the microfluidic panel 1 at the light-emitting surface of the pattern display structure 2; wherein the content of the first and second substances,
the pattern display structure 2 comprises a plurality of pixel units 20, wherein each pixel unit 20 is configured to transmit light or shield light according to a current picture to be printed;
the microfluidic panel 1 includes a plurality of microfluidic cells 10 corresponding to the pixel cells 20 one to one, and each microfluidic cell 10 is configured to have the same light shielding or transmitting performance as the corresponding pixel cell 20. That is, for example, referring to fig. 1, when the first pixel unit 20 from the left side of the pattern display structure 2 is light-transmissive, the first microfluidic unit 10 from the left side of the microfluidic panel 1 is also light-transmissive; when the third pixel unit 20 from the left side of the pattern display structure 2 is shielded from light, the third microfluidic unit 10 from the left side of the microfluidic panel 1 is also shielded from light. Specifically, the microfluidic panel 1 and the pattern display structure 2 may be bonded by an adhesive layer 3.
The 3D printing shading device provided by the embodiment of the invention comprises: the pattern display structure 2 is positioned on the microfluidic panel 1 at the light-emitting surface of the pattern display structure 2; the pattern display structure 2 includes a plurality of pixel units 20, and each pixel unit 20 is configured to transmit light or shield light according to a current picture to be printed; the micro-fluidic panel 1 comprises a plurality of micro-fluidic units 10 corresponding to the pixel units 20 one by one, each micro-fluidic unit 10 is configured to have the same shading or light transmitting performance as the corresponding pixel unit 20, and further when the pixel unit 20 of the pattern display structure 2 is shaded, the micro-fluidic unit 10 corresponding to the micro-fluidic panel 1 can have the corresponding shading performance, so that the position can be further shaded, the situation that the pixel unit 20 of the image display structure 2 cannot be completely shaded when in a black state and part of light still penetrates through the pixel unit in the black state is avoided, and the problems that the contrast ratio of a 3D printing shading device is low and the 3D printing effect is affected are further solved.
In a specific implementation, as shown in fig. 2 to 4, each microfluidic unit 10 may include a control structure 17, a containing cavity 15, a liquid storage tank 16 located at an edge of the containing cavity 15 and communicated with the containing cavity 15, and a light-shielding fluid 13 flowing in the containing cavity 15 and the liquid storage tank 16; the control structure 17 is configured to control the light-shielding fluid 13 to move into the accommodating cavity 15 when the corresponding pixel unit 10 is shielded from light, as shown in fig. 3; and, when the corresponding pixel cell 10 transmits light, controlling the light-shielding fluid 13 to move into the reservoir 16, as shown in fig. 4. Specifically, the light-blocking fluid 13 may be a black oily liquid. The reservoir 16 may specifically be located at an inner edge of the receiving chamber 15, i.e. the reservoir 16 is located at an edge position of the microfluidic unit 10, and the receiving chamber 15 may specifically cover a middle region of the microfluidic unit 10 and a region where the reservoir 16 is located. The outer edge of the receiving chamber 15 may in particular coincide with the outer edge of the reservoir 16. Fig. 2 is a schematic diagram illustrating the accommodating cavity and the reservoir 16 more clearly, and the light-shielding fluid is not illustrated, and the microfluidic cell 10 specifically includes the light-shielding fluid 13. In the embodiment of the present invention, the micro-fluidic unit 10 includes the control structure 17, the accommodating cavity 15, the liquid storage tank 16, and the shading fluid 13, so that when the pixel unit 20 is shaded, the corresponding micro-fluidic unit 10 may also have a shading performance, and further, the light which is not completely shaded by the black pixel unit 20 is shaded again by the corresponding micro-fluidic unit 10, so as to improve the shading performance at the position.
In specific implementation, referring to fig. 5, each microfluidic cell 10 further includes: a transparent conductive fluid 14 flowing through the accommodation chamber 15 and the liquid storage tank 16; the control structure 17 includes a control electrode 171 and a hydrophobic layer 172 stacked together, wherein the hydrophobic layer 172 is located on a side of the control electrode 171 facing away from the pattern display structure 2; the control electrode 171 is configured to apply a voltage when the corresponding pixel unit 20 transmits light, and control the transparent conductive fluid 14 to move into the accommodating cavity 15, so as to squeeze the light-shielding fluid 13 into the liquid storage tank 16, as shown in fig. 5; when the corresponding pixel unit 20 is turned off when transmitting light, the transparent conductive fluid 14 moves into the liquid storage tank 16 by the repulsion of the hydrophobic layer 172, and further the light-shielding fluid 13 is squeezed into the accommodating cavity 15, as shown in fig. 6.
In specific implementation, as shown in fig. 2 to fig. 6, the accommodating cavity 15 has an arc surface 151 protruding at least in the light emitting direction to a surface far away from the pattern display structure 2. Specifically, the accommodating cavity 15 may further have a concave surface that is concave toward a surface close to the pattern display structure 2 in the light emitting direction. In the embodiment of the present invention, the accommodating cavity 15 has an arc surface 151 protruding at least in the light emitting direction to a surface far away from the pattern display structure 2, and then when the control electrode 171 is powered on, the transparent conductive fluid 14 moves into the accommodating cavity 15, so as to form a lens structure, so that the light rays emitted by the pixel units 20 below can be converged into parallel light (shown in fig. 1), and further, the problem that when the pattern display structure 2 of a common 3D printing shading device adopts an existing liquid crystal display box, accurate printing cannot be performed due to a large visible angle of the common liquid crystal display box can be solved.
In specific implementation, referring to fig. 1 to 6, the microfluidic panel 1 includes a first substrate 11 and a second substrate 12 opposite to each other, where the first substrate 11 is located on a side of the second substrate 12 facing the pattern display structure 2; the accommodating cavity 15 is located on the second substrate 12 and is a first groove with an opening facing the first substrate 11. In the embodiment of the present invention, the accommodating cavity 15 is located on the second substrate 12 and is a first groove with an opening facing the first substrate, when manufacturing, the first groove can be directly formed on the second substrate 12, and then the accommodating cavity 15 can be formed after the first substrate 11 is closed, and the manufacturing process of the accommodating cavity 15 is simple and easy to implement.
In specific implementation, as shown in fig. 1 to 6, the liquid storage groove 16 is located on the first substrate 11 and is a second groove opening toward the second substrate 12. In the embodiment of the present invention, the liquid storage tank 16 is located on the first substrate and is a second groove with an opening facing the second substrate 12, and when the first substrate 11 is manufactured, the second groove is manufactured on the first substrate 11, and then the liquid storage tank 16 can be formed after the second groove is aligned with the second substrate 12, that is, the manufacturing process of the liquid storage tank 16 is simple and easy to implement. Specifically, a first film layer may be formed on the first substrate 11, and the second groove may be formed by etching the first film layer.
In particular implementations, as shown in fig. 2 and 6, the control electrode 171 and the hydrophobic layer 172 may be located on the first substrate 11. As shown in fig. 6 and 7, the front projection of the reservoir 16 on the first substrate 11 is a ring shape surrounding the control electrode 171. In the embodiment of the present invention, the orthographic projection of the liquid storage tank 16 on the first substrate 11 is a ring shape surrounding the control electrode 171, so that more storage positions can be provided for the light-shielding fluid 13 and the transparent conductive fluid 14, and the liquid storage tank 16 is located at the edge and is a ring shape surrounding the control electrode 171, which is also beneficial for the fluid to perform position conversion more quickly. The first substrate 11 may be further provided with a gate line 25 extending in the first direction, a data line 26 extending in the second direction, and a thin film transistor 27 for driving the control electrode 171.
In particular, the microfluidic cell 10 is the same size as the pixel cell 20. In the embodiment of the present invention, the microfluidic unit 10 and the pixel unit 20 have the same size, so that the microfluidic unit 10 performs one-to-one correspondence adjustment on light passing through the pixel unit 20.
In practice, referring to fig. 8, the pattern display structure 1 is a liquid crystal cell. Specifically, the liquid crystal cell may include a third substrate 21, a fourth substrate 22 and a liquid crystal layer 23 located between the third substrate 21 and the fourth substrate 22, where the third substrate 21 is located on a side of the fourth substrate 22 away from the microfluidic panel 1, and the third substrate 21 may specifically be an array substrate. The fourth substrate 22 may be a color filter substrate, and a black matrix 24 may be disposed in a gap between adjacent pixel units 20.
Based on the same inventive concept, the embodiment of the present invention further provides a 3D printing apparatus, as shown in fig. 9, including the 3D printing shading device provided in the embodiment of the present invention, and further including an ultraviolet light source 4 located on a side of the pattern display structure 2 facing away from the microfluidic panel 1. Specifically, the 3D printing device may further include a light-cured resin liquid 5 located on a side of the 3D printing shading device away from the ultraviolet light source 4, a lifting base station 5 located on a side of the light-cured resin liquid 5 away from the 3D printing shading device, and a lifting manipulator 6 connected to the lifting base station 5. The pattern display structure 2 sequentially displays patterns to be printed, the 3D printing equipment prints layer by layer, the lifting base station 5 gradually pulls up the printed objects according to the arrow direction shown in fig. 8, and finally a complete printed object is formed.
The embodiment of the invention has the following beneficial effects: the 3D printing shading device provided by the embodiment of the invention comprises: the pattern display structure is positioned on the microfluidic panel of the light-emitting surface of the pattern display structure; the pattern display structure comprises a plurality of pixel units, wherein each pixel unit is configured to transmit light or shield light according to a current picture to be printed; the micro-fluidic panel comprises a plurality of micro-fluidic units which are in one-to-one correspondence with the pixel units, each micro-fluidic unit is configured to have the same shading or light transmitting performance with the corresponding pixel unit, and further when the pixel units of the pattern display structure are shading, the micro-fluidic units corresponding to the micro-fluidic units can have the corresponding shading performance, so that the positions can be further shaded, the problems that the pixel units of the image display structure cannot be completely shaded and part of light is still transparent when in a black state are avoided, and the problems that the contrast of a 3D printing shading device is low and the 3D printing effect is influenced are solved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The 3D prints shade characterized in that includes: the pattern display structure is positioned on the microfluidic panel of the light-emitting surface of the pattern display structure; wherein the content of the first and second substances,
the pattern display structure comprises a plurality of pixel units, and each pixel unit is configured to transmit light or shield light according to a current picture to be printed;
the microfluidic panel comprises a plurality of microfluidic units which correspond to the pixel units one by one, and each microfluidic unit is configured to have the same light shading or light transmitting performance with the corresponding pixel unit;
each micro-fluidic unit comprises a control structure, an accommodating cavity, a liquid storage tank and a shading fluid, wherein the liquid storage tank is positioned at the edge of the accommodating cavity and is communicated with the accommodating cavity, and the shading fluid flows in the accommodating cavity and the liquid storage tank;
the control structure is configured to control the light-shielding fluid to move into the accommodating cavity when the corresponding pixel unit is shielded from light, and control the light-shielding fluid to move into the liquid storage tank when the corresponding pixel unit is transmitted with light;
the accommodating cavity is provided with an arc-shaped surface which is at least convex towards one surface far away from the pattern display structure in the light emitting direction.
2. The 3D printing shading device according to claim 1, wherein each of the microfluidic cells further comprises: the transparent conductive fluid flows in the accommodating cavity and the liquid storage tank;
the control structure comprises a control electrode and a hydrophobic layer which are laminated, wherein the hydrophobic layer is positioned on one side of the control electrode, which faces away from the pattern display structure;
the control electrode is configured to load voltage when the corresponding pixel unit is transparent, control the transparent conductive fluid to move into the accommodating cavity, further squeeze the shading fluid into the liquid storage tank, and power off when the corresponding pixel unit is transparent, the transparent conductive fluid is moved into the liquid storage tank through the repulsion of the hydrophobic layer, and further squeeze the shading fluid into the accommodating cavity.
3. The 3D printing shading device according to claim 2, wherein the microfluidic panel comprises a first substrate and a second substrate which are oppositely arranged, the first substrate is positioned at one side of the second substrate facing the pattern display structure;
the accommodating cavity is positioned on the second substrate and is a first groove with an opening facing the first substrate.
4. The 3D printing shading device according to claim 3, wherein the liquid storage tank is positioned on the first substrate and is a second groove with an opening facing the second substrate.
5. The 3D printing shading device according to claim 3, wherein the orthographic projection of the liquid storage tank on the first substrate is in a ring shape surrounding the control electrode.
6. The 3D printing shading device according to any one of claims 1 to 5, wherein the microfluidic cell and the pixel cell are the same size.
7. The 3D printing shading device according to claim 6, wherein the pattern display structure is a liquid crystal cell.
8. 3D printing apparatus, comprising a 3D printing shading device according to any one of claims 1 to 7, further comprising an ultraviolet light source located at a side of the pattern display structure facing away from the microfluidic panel.
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| CN201910496070.3A CN110228194B (en) | 2019-06-10 | 2019-06-10 | 3D prints shade and 3D printing apparatus |
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| CN201910496070.3A CN110228194B (en) | 2019-06-10 | 2019-06-10 | 3D prints shade and 3D printing apparatus |
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| CN110228194B true CN110228194B (en) | 2021-08-06 |
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| JP2014170244A (en) * | 2014-06-13 | 2014-09-18 | Japan Display Inc | Alignment film material |
| CN104133319A (en) * | 2014-07-16 | 2014-11-05 | 京东方科技集团股份有限公司 | Display device |
| CN108919552A (en) * | 2018-07-23 | 2018-11-30 | 天马微电子股份有限公司 | Liquid crystal device and 3D printing system |
| CN109725412A (en) * | 2019-01-02 | 2019-05-07 | 京东方科技集团股份有限公司 | A kind of display panel, display device and display methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014170244A (en) * | 2014-06-13 | 2014-09-18 | Japan Display Inc | Alignment film material |
| CN104133319A (en) * | 2014-07-16 | 2014-11-05 | 京东方科技集团股份有限公司 | Display device |
| CN108919552A (en) * | 2018-07-23 | 2018-11-30 | 天马微电子股份有限公司 | Liquid crystal device and 3D printing system |
| CN109725412A (en) * | 2019-01-02 | 2019-05-07 | 京东方科技集团股份有限公司 | A kind of display panel, display device and display methods |
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