CN110706589A - Electric driving element and method for manufacturing the same - Google Patents
Electric driving element and method for manufacturing the same Download PDFInfo
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- CN110706589A CN110706589A CN201910371691.9A CN201910371691A CN110706589A CN 110706589 A CN110706589 A CN 110706589A CN 201910371691 A CN201910371691 A CN 201910371691A CN 110706589 A CN110706589 A CN 110706589A
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Images
Classifications
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
An electric drive element and its making method, through forming multiple conducting patterns on a surface of a first base plate and covering a photosensitive adhesive glue material, and then pattern the photosensitive adhesive glue material and form the viscous barricade on the periphery of the conducting pattern, the conducting pattern and the viscous barricade are set up alternatively and define multiple grooves, for disposing the electric drive display material in the groove, and use the viscous barricade to adhere a second base plate to the first base plate, wherein, the viscous barricade can not only obstruct the fluid display material that needs to be isolated from each other, but also can adhere two base plates, and then simplify the process step.
Description
Technical Field
The present invention relates to an electrically driven device, and more particularly, to a flexible display and a method for manufacturing the same.
Background
The trend of consumer electronics has been to develop flexible displays in the new generation of display technologies in view of the light weight and portability. Due to material characteristics, process convenience, cost and other considerations, the flexible display mostly uses plastic substrates, however, the plastic substrates are mainly supplied in a Roll-to-Roll (Roll-to-Roll) continuous manner by a rolling device during the manufacturing process, which causes the plastic substrates to bear the tensile stress of the rolling device.
In addition, in the process of forming each layer structure on the surface of the plastic substrate and laying the electronic components, such as a yellow light process, material deposition, photoresist coating, exposure, development, etching and the like must be performed, so that the plastic substrate gradually generates irregular deformation after the processes of stretching by a rolling device, acid/alkali solution immersion, high-temperature baking, high pressure and the like, the problem of alignment difficulty between different patterning processes is caused, and the manufacturing yield of products is reduced.
In addition, in the structure of the flexible display, the retaining wall is mainly used as an isolation structure between the fluid display materials, but an additional adhesive material is still required to be arranged to bond the two substrates, which causes inconvenience in the manufacturing process.
Therefore, how to overcome the above problems in flexible displays to improve the yield of products, simplify the manufacturing process and reduce the manufacturing cost is an important issue in the related industries.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an electrically driven device (e.g., a display) and a method for fabricating the same, which can improve the yield of the product, simplify the process and reduce the manufacturing cost.
The method for manufacturing an electric drive element of the present invention includes: providing a first substrate with a first surface and a second surface which are opposite, wherein a plurality of conductive patterns are formed on the first surface; covering a photosensitive adhesive material on the conductive pattern and the first surface of the first substrate; patterning the photosensitive adhesive material to form a viscous retaining wall at the periphery of the conductive pattern, and arranging the conductive pattern and the viscous retaining wall in a staggered manner to define a plurality of grooves; disposing an electrically driven display material in the recess; and adhering a second substrate to the first substrate by the viscous retaining wall.
The present invention also provides an electric drive element comprising: a first substrate, a plurality of conductive patterns are arranged on one surface of the first substrate, and viscous retaining walls formed by photosensitive adhesive materials are arranged at the peripheries of the conductive patterns, so that a plurality of grooves are defined by the staggered arrangement of the conductive patterns and the viscous retaining walls; an electrically driven display material disposed in the recess; and a second substrate adhered to the first substrate by the adhesive wall.
The method further includes disposing a photosensitive adhesive material on the first surface of the first substrate, disposing a light-shielding pattern on a top surface of the photosensitive adhesive material or a bottom surface opposite to the top surface, irradiating the light-shielding pattern with the exposure beam, removing a portion of the photosensitive adhesive material that is not irradiated by the exposure beam to form the adhesive dam, and forming the conductive pattern and the adhesive dam with the same light-shielding pattern during patterning.
In the above-mentioned electrically driven device and the manufacturing method thereof, the material of the conductive pattern includes Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene or nano silver metal film.
In the above-mentioned electric driving element and the manufacturing method thereof, the photosensitive adhesive material is a dry film photoresist, a wet film photoresist, a UV pressure sensitive adhesive, a UV anaerobic adhesive or a two-stage curing UV adhesive.
In the above-mentioned electric driving element and the manufacturing method thereof, the second substrate is further provided with a conductive pattern, so that the electric driving display material is driven by the conductive pattern on the first substrate and the conductive pattern on the second substrate.
In the above-mentioned electric driving element and the manufacturing method thereof, the first substrate and the second substrate are, for example, soft glass or Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), or polyethylene naphthalate (PEN) soft plastic substrates.
Therefore, the electric driving device and the manufacturing method thereof of the present invention mainly use the viscous retaining wall arranged in the structure of the electric driving device, the viscous retaining wall can not only form a groove with the conductive pattern to contain the fluid display materials which need to be isolated from each other, but also can be further used for bonding two substrates, therefore, the structure for bonding the two substrates and the encapsulation of the panel are not needed to be arranged additionally, so that the convenience of the manufacturing process can be improved and the cost can be reduced. In addition, the invention uses the same shading pattern as a mask to form the conductive pattern and the viscous retaining wall which are adjacent to each other, even the shading material with conductivity can be adopted to form the conductive pattern and be used as the mask of the patterned photosensitive adhesive material, therefore, the problem of contraposition deviation caused by the realignment of the mask in different patterning processes due to the deformation of the flexible substrate can be avoided.
Drawings
Fig. 1A to 1G are schematic views illustrating a method of manufacturing an electric driving element according to a first embodiment of the present invention;
FIGS. 2A to 2H are schematic views illustrating a method for manufacturing an electric driving element according to a second embodiment of the present invention;
FIGS. 3A to 3H are schematic views illustrating a third embodiment of a method for manufacturing an electric driving element according to the present invention; and
fig. 4A to 4E are schematic diagrams illustrating a fourth embodiment of a method for manufacturing an electric driving element according to the present invention.
Description of the symbols
1. 2, 3, 4 electrically driven element
101. 201, 301, 401 first substrate
102. 202, 302 conductive layer
101a, 201a, 301a, 401a first surface
101b, 201b, 301b, 401b second surface
103. 203, 303 photosensitive material layer
104. 204, 304, 404 shading pattern
105. 109, 205, 209, 305, 309, 409 conductive patterns
106. 206, 306 and 406 photosensitive adhesive material
1061. 2061, 3061, 4061 viscous retaining wall
1062. 2062, 3062, 4062 groove
107. 207, 307, 407 second substrate
108. 208, 308, 408 electrically driven display material
I exposes the beam.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the present disclosure, and are not used for limiting the conditions of the present disclosure, which will not be technically significant, and any structural modifications, ratio changes or size adjustments should be made within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "above", "first", "second" and "a" as used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.
Please refer to fig. 1A to fig. 1G, which are schematic diagrams illustrating a method for manufacturing an electric driving device (e.g., a display) according to a first embodiment of the present invention.
As shown in fig. 1A, a first substrate 101 is provided. The first substrate 101 has a first surface 101a and a second surface 101b opposite to the first surface 101a, and a conductive layer 102 is formed on the first surface 101 a. In this embodiment, the first substrate 101 may be a rigid substrate or a flexible substrate with light transmittance, wherein the rigid substrate is made of, for example, hard glass or other rigid light-transmitting materials; examples of the flexible substrate include flexible glass, flexible plastic substrates such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, the conductive layer 102 may be formed of a transparent conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
As shown in fig. 1B, a photosensitive material layer 103 is formed on the conductive layer 102, and a light shielding pattern 104 is provided on the other side of the photosensitive material layer 103 opposite to the conductive layer 102. Next, an exposure beam I is provided from the other side of the light shielding pattern 104 opposite to the photosensitive material layer 103, and the exposure beam I irradiates toward the photosensitive material layer 103. In the present embodiment, the photosensitive material layer 103 is, for example, a positive photoresist layer, and may be coated on the surface of the conductive layer 102 by coating, spraying, depositing, or the like. The light-shielding pattern 104 can block the exposure beam I from passing through the light-shielding pattern 104 by reflecting or absorbing light, wherein when the light-shielding pattern 104 blocks light in a reflective manner, the light-shielding pattern 104 can be made of a light-reflecting material such as metal, metal oxide, or the like, and when the light-shielding pattern 104 blocks light in an absorptive manner, the light-shielding pattern 104 can be made of black ink, carbon powder, black glue with high optical density, or other light-absorbing material capable of absorbing the exposure beam I.
As shown in fig. 1C and 1D, in the present embodiment, the exposure beam I irradiates a portion of the photosensitive material layer 103 through the light-shielding pattern 104, the photosensitive material layer 103 after being irradiated is removed by the developing solution to expose the conductive layer 102 therebelow, and then the exposed portion of the conductive layer 102 is removed by etching, such as wet etching or dry etching, to form a plurality of conductive patterns 105, and finally the photosensitive material layer 103 on the plurality of conductive patterns 105 is removed to complete the patterning process of the conductive layer. In this embodiment, the developer may be an alkaline solution, such as Na2CO3And TMAH, etc., the etching acidic solution may be oxalic acid or aqua regia, but the present invention is not limited thereto.
As shown in fig. 1E and fig. 1F, a layer of photosensitive adhesive material 106 is firstly covered on the plurality of conductive patterns 105 and the first surface 101a of the first substrate 101 not covered by the conductive patterns 105, in this embodiment, the photosensitive adhesive material 106 may be a negative photoresist having viscosity after development, in other embodiments, the photosensitive adhesive material 106 may also be a dry film photoresist having viscosity after development, a wet film photoresist, a UV pressure sensitive adhesive, a UV anaerobic adhesive, a two-stage curing UV adhesive, or other photosensitive material having viscosity, and the photosensitive adhesive material 106 is covered on the conductive patterns 105 and the first surface 101a of the first substrate 101 by coating. Next, the exposure beam I is irradiated toward the light-shielding pattern 104, the exposure beam I irradiates a portion of the photosensitive adhesive material 106 through the light-shielding pattern 104, the photosensitive adhesive material 106 not irradiated by the exposure beam I can be removed by the developing solution, the photosensitive adhesive material 106 not removed forms a sticky wall 1061 at the periphery of the conductive pattern 105, and a plurality of grooves 1062 are defined by the conductive pattern 105 and the sticky wall 1061 in a staggered manner, that is, the grooves 1062 correspond to the positions of the conductive pattern 105.
As shown in fig. 1G, the electrically-driven display material 108 is disposed in the grooves 1062, for example, the electrically-driven display material 108 may be disposed in the grooves 1062 by pouring, spraying, or the like; then, the first substrate 101 is bonded to a second substrate 107 having a conductive pattern 109 by the adhesive wall 1061, so as to confine the electrically-driven display material 108 in the space (i.e. the recess 1062) formed by the first substrate 101, the second substrate 107 and the adhesive wall 1061, and the electrically-driven display material 108 can be driven by the conductive pattern 105 on the first substrate 101 and the conductive pattern 109 on the second substrate 107, thereby forming the electrically-driven device 1 of the present invention.
In addition, it should be noted that the adhesive dam 1061 formed by the photo-sensitive adhesive material 106 may be cured while the first substrate 101 and the second substrate 107 are bonded, or alternatively, another curing process may be performed after the first substrate 101 and the second substrate 107 are bonded, for example, if the photo-sensitive adhesive material 106 adopts two-stage UV curing glue, after the first substrate 101 and the second substrate 107 are bonded by the adhesive dam 1061, another UV light source is exposed or heated to fully cure the two-stage UV curing glue, and the fully cured adhesive dam 1061 is further helpful to fix the distance between the first substrate 101 and the second substrate 107. In addition, the electrically-driven display material 108 may be a Liquid Crystal material such as Nematic Liquid Crystal (Nematic Liquid Crystal), Cholesteric Liquid Crystal (Cholesteric Liquid Crystal), or other Liquid Crystal display material, or an Organic Electroluminescent (OEL) material such as organic light-emitting diode (OLED), polymer light-emitting diode (PLED), or other organic electroluminescent display material. The second substrate 107 may be a rigid substrate or a flexible substrate, in which the rigid substrate is made of glass or other rigid transparent materials, and the flexible substrate is made of plastic materials such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, a conductive pattern 109 is disposed on the second substrate 107, and the conductive pattern 109 may be a transparent conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
Through the foregoing processes, the present invention further provides an electric driving device 1, including: a first substrate 101 having a plurality of conductive patterns 105 formed on a surface thereof, and a sticky wall 1061 formed by a photosensitive adhesive material disposed around the conductive pattern 305, such that the conductive patterns 105 and the sticky wall 1061 are disposed alternately to define a plurality of grooves 1062; an electrically-driven display material 108 disposed in the recess 1062; and a second substrate 107 adhered to the first substrate 101 by the adhesive dam 1061.
Please refer to fig. 2A to 2H, which are schematic diagrams illustrating a method for manufacturing an electric driving device according to a second embodiment of the present invention.
As shown in fig. 2A, a first substrate 201 is first provided, the first substrate 201 has a first surface 201a and a second surface 201b opposite to the first surface 201a, and the first surface 201a is provided with a conductive layer 202. In this embodiment, the first substrate 201 may be a rigid substrate or a flexible substrate with light transmittance, where the rigid substrate is, for example, rigid glass or other rigid light-transmitting materials, the flexible substrate is, for example, flexible plastic substrate such as flexible glass or Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and the like, and the conductive layer 202 may be a light-transmitting conductive material such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano silver metal film, or a combination thereof, but the invention is not limited thereto.
As shown in fig. 2B, a photosensitive material layer 203 is formed on the surface of the conductive layer 202, and a light shielding pattern 204 is formed on the second surface 201B of the first substrate 201. Next, an exposure beam I is provided on the second surface 201b side of the first substrate 201, and the exposure beam I is irradiated toward the light-shielding pattern 204 and the photosensitive material layer 203. In the present embodiment, the photosensitive material layer 203 is, for example, a negative photoresist layer, and can be coated on the surface of the conductive layer 202 by coating, spraying, depositing, and the like. In addition, the light-shielding pattern 204 can reflect or absorb light to block the exposure light beam I from passing through the light-shielding pattern 204, wherein when the light-shielding pattern 204 blocks light in a reflective manner, the light-shielding pattern 204 can be made of a light-reflecting material such as metal, metal oxide, or the like, and when the light-shielding pattern 204 blocks light in an absorptive manner, the light-shielding pattern 204 can be made of black ink, carbon powder, black glue with high optical density, or other light-absorbing materials capable of absorbing the exposure light beam I. In the present embodiment, the exposure beam I comes from a light source capable of interacting with the photosensitive material layer 203, such as a halogen lamp, however, the present invention is not limited thereto.
As shown in fig. 2C to 2E, the exposure beam I irradiates a portion of the photosensitive material layer 203 through the light-shielding pattern 204, and the portion of the photosensitive material layer 203 not irradiated by the exposure beam I is removed by the developing solution to expose the conductive layer 202 therebelow, so that the exposed portion of the conductive layer 202 is further removed by etching, such as wet etching or dry etching, to form a plurality of conductive patterns 205, and then the photosensitive material layer 203 on the plurality of conductive patterns 205 is removed to complete the patterning process of the conductive layer. In this embodiment, the developer may be an alkaline solution, such as Na2CO3And TMAH, etc., the etching acidic solution may be oxalic acid or aqua regia, but the present invention is not limited thereto.
As shown in fig. 2F and fig. 2G, a layer of photosensitive adhesive material 206 is fully covered on the plurality of conductive patterns 205 and the first surface 201a of the first substrate 201 not covered by the conductive patterns 205, in this embodiment, the photosensitive adhesive material 206 may be a developed viscous positive photoresist, in other embodiments, the photosensitive adhesive material 206 may also be a developed viscous dry film photoresist, a wet film photoresist, a UV sensitive adhesive, a UV anaerobic adhesive, a two-stage curing UV adhesive or other photosensitive materials with viscosity, and the photosensitive adhesive material 206 is covered on the conductive patterns 205 and the first surface 201a of the first substrate 201 not covered by the conductive patterns 205 by a coating process, and then is irradiated toward the light-shielding patterns 204 by the exposure light beam I, which is irradiated onto a portion of the photosensitive adhesive material 206 by the light-shielding patterns 204, and the irradiated photosensitive adhesive material 206 can be removed by the developing solution, through the patterning process, the unremoved photosensitive adhesive 206 forms adhesive walls 2061 around the conductive pattern 205, and the conductive pattern 205 and the adhesive walls 2061 are alternately disposed to form a plurality of recesses 2062.
As shown in fig. 2H, the electrically-driven display material 208 is placed in the grooves 2062, and the second substrate 207 is bonded to the first substrate 201 by the adhesive walls 2061. For example, the electrically-driven display material 208 may be disposed in the recess 2062 by pouring, spraying, or the like, and then the first substrate 201 is bonded to the second substrate 207 by the adhesive wall 2061, so as to confine the electrically-driven display material 208 in the space formed by the first substrate 201, the second substrate 207, and the adhesive wall 2061, and the electrically-driven display material 208 may be driven by the conductive pattern 205 on the first substrate 201 and the conductive pattern 209 disposed on the second substrate 207, thereby forming the electrically-driven device 2 of the present invention.
In addition, it should be noted that the adhesive dam 2061 formed by the photo-sensitive adhesive material 206 may be cured while the first substrate 201 and the second substrate 207 are bonded, or alternatively, another curing process may be performed after the first substrate 201 and the second substrate 207 are bonded, for example, if the photo-sensitive adhesive material 206 adopts two-stage curing UV glue, after the first substrate 201 and the second substrate 207 are bonded by the adhesive dam 2061, another UV light source is exposed or heated to fully cure the two-stage curing UV glue, and the fully cured adhesive dam 2061 is further helpful for fixing the distance between the first substrate 201 and the second substrate 207. In addition, the electrically-driven display material 208 may be a Liquid Crystal material such as Nematic Liquid Crystal (Nematic Liquid Crystal), Cholesteric Liquid Crystal (Cholesteric Liquid Crystal), or other Liquid Crystal display material, or an Organic Electroluminescent (OEL) material such as organic light-emitting diode (OLED), polymer light-emitting diode (PLED), or other organic electroluminescent display material. The second substrate 207 may be a rigid substrate or a flexible substrate, in which the rigid substrate is made of glass or other rigid transparent materials, and the flexible substrate is made of plastic materials such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, the second substrate 207 is provided with a conductive pattern 209, and the conductive pattern 209 may be a transparent conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
Please refer to fig. 3A to 3H, which are schematic diagrams illustrating a method for manufacturing an electric driving device according to a third embodiment of the present invention.
As shown in fig. 3A, a first substrate 301 is provided, the first substrate 301 has a first surface 301a and a second surface 301b opposite to the first surface 301a, and the first surface 301a is provided with a conductive layer 302. In this embodiment, the first substrate 301 may be a rigid substrate or a flexible substrate with light transmittance, wherein the rigid substrate is, for example, rigid glass or other rigid light transmittance materials, and the flexible substrate is, for example, flexible glass or a flexible plastic substrate such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), etc., but the invention is not limited thereto. In addition, the conductive layer 302 may be a light-transmissive conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
As shown in fig. 3B, a photosensitive material layer 303 is formed on the surface of the conductive layer 302, and a light shielding pattern 304 is formed on the second surface 301B of the first substrate 301. Next, an exposure beam I is provided on the second surface 301b side of the first substrate 301, and the exposure beam I is irradiated toward the light-shielding pattern 304 and the photosensitive material layer 303. In this embodiment, the photosensitive material layer 303 is, for example, a positive photoresist layer, and may be coated on the surface of the conductive layer 302 by coating, spraying, depositing, etc., and the light-shielding pattern 304 may reflect or absorb light to block the exposure beam I from passing through the light-shielding pattern 304, wherein when the light-shielding pattern 304 blocks light in a reflective manner, the light-shielding pattern 304 may be made of a light-reflecting material such as metal, metal oxide, etc., and when the light-shielding pattern 304 blocks light in an absorptive manner, the light-shielding pattern 304 may be made of black ink, carbon powder, black glue with high optical density, or other light-absorbing material capable of absorbing the exposure beam I. In the present embodiment, the exposure beam I comes from a light source that can interact with the photosensitive material layer 303, such as a halogen lamp, however, the present invention is not limited thereto.
As shown in fig. 3C to fig. 3E, the exposure beam I irradiates a portion of the photosensitive material layer 303 through the light-shielding pattern 304, the irradiated photosensitive material layer 303 is removed by a developer to expose the conductive layer 302 therebelow, the exposed portion of the conductive layer 302 is further removed by etching, such as wet or dry etching, to form a plurality of conductive patterns 305, and finally, the photosensitive material layer 303 on the plurality of conductive patterns 305 is removed to complete the patterning process of the conductive layer. In this embodiment, the developer may be an alkaline solution, such as Na2CO3And TMAH, etc., the etching acidic solution may be oxalic acid or aqua regia, but the present invention is not limited thereto.
As shown in fig. 3F and 3G, a layer of photosensitive adhesive material 306 is firstly covered on the plurality of conductive patterns 305 and the first surface 301a of the first substrate 301 not covered by the conductive patterns 305, in this embodiment, the photosensitive adhesive material 306 may be a negative photoresist having viscosity after development, in other embodiments, the photosensitive adhesive material 306 may also be a dry film photoresist, a wet film photoresist, a UV sensitive adhesive, a UV anaerobic adhesive, a two-stage curing UV adhesive or other photosensitive material having viscosity after development, and the photosensitive adhesive material 306 is covered on the conductive patterns 305 and the first surface 301a of the first substrate 301 not covered by the conductive patterns 305 through a coating process and irradiated toward the light-shielding patterns 304 by the exposure light beam I, the exposure light beam I irradiates part of the photosensitive adhesive material 306 through the light-shielding patterns 304, and the photosensitive adhesive material 306 not irradiated by light can be removed by the developing solution, after the patterning process, the unremoved photosensitive adhesive material 306 forms a sticky wall 3061 around the periphery of the conductive pattern 305, and the conductive pattern 305 and the sticky wall 3061 are alternately arranged to define a plurality of grooves 3062.
As shown in fig. 3H, after forming a plurality of cavities 3062 on the first substrate 301, the electrically-driven display material 308 may be placed in the cavities 3062, and a second substrate 307 is adhered to the first substrate 301 by the adhesive walls 3061. In this embodiment, the electrically-driven display material 308 may be disposed in the recess 3062 by pouring, spraying, or the like, the first substrate 301 is bonded to the second substrate 307 by the adhesive wall 3061, thereby confining the electrically-driven display material 308 in the space formed by the first substrate 301, the second substrate 307 and the adhesive wall 3061, and the electrically-driven display material 308 may be driven by the conductive pattern 305 of the first substrate 301 and the conductive pattern 309 disposed on the second substrate 307, thereby forming the electrically-driven element 3 of the present invention.
It should be noted that the adhesive dam 3061 formed by the photosensitive adhesive material 306 may be cured while the first substrate 301 and the second substrate 307 are adhered, or may be cured after the first substrate 301 and the second substrate 307 are adhered, for example, if the photosensitive adhesive material 306 adopts two-stage curing UV glue, after the first substrate 301 and the second substrate 307 are adhered by the adhesive dam 307, a UV light source is further exposed or heated to fully cure the two-stage curing UV glue, and the fully cured adhesive dam 307 is further helpful for fixing the distance between the first substrate 301 and the second substrate 307. In addition, the electrically-driven display material 308 may be a Liquid Crystal material such as Nematic Liquid Crystal (Nematic Liquid Crystal), Cholesteric Liquid Crystal (Cholesteric Liquid Crystal), or other Liquid Crystal display material, or an Organic Electroluminescent (OEL) material such as organic light-emitting diode (OLED), polymer light-emitting diode (PLED), or other organic electroluminescent display material. The second substrate 307 may be a rigid substrate or a flexible substrate, in which the rigid substrate is made of glass or other rigid transparent materials, and the flexible substrate is made of plastic materials such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, the second substrate 307 is provided with a conductive pattern 309, and the conductive pattern 309 may be a transparent conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
Please refer to fig. 4A to 4E, which are schematic diagrams illustrating a method for manufacturing an electric driving device according to a fourth embodiment of the present invention.
As shown in fig. 4A and 4B, a first substrate 401 is provided. The first substrate 401 has a first surface 401a and a second surface 401b opposite to the first surface 401a, and a light-shielding pattern 404 capable of conducting light is disposed on the first surface 401 a. In this embodiment, the first substrate 401 may be a rigid substrate or a flexible substrate with light transmittance, wherein the rigid substrate is made of, for example, hard glass or other rigid light-transmissive materials; examples of the flexible substrate include flexible glass, flexible plastic substrates such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, the light-shielding pattern 404 may be made of a conductive material that reflects or absorbs light, and may be formed on the first surface 401a by a printing method such as gravure printing, offset printing, pad printing, jet printing or screen printing, and the light-shielding pattern 404 may be made of, for example, aluminum, silver, nickel or graphite.
As shown in fig. 4C and 4D, a layer of photosensitive adhesive material 406 is covered on the entire surface of the first surface 401a of the first substrate 401 over the light-shielding pattern 404 and the first surface 401a of the first substrate 401 not covered by the light-shielding pattern 404, in this embodiment, the photosensitive adhesive material 406 may be a negative photoresist having viscosity after development, in other embodiments, the photosensitive adhesive material 406 may also be a dry film photoresist, a wet film photoresist, a UV sensitive adhesive, a UV anaerobic adhesive, a two-stage curing UV adhesive or other photosensitive material having viscosity after development, and the photosensitive adhesive material 406 is covered on the light-shielding pattern 404 and the first surface 401a of the first substrate 401 not covered by the light-shielding pattern 404 by a coating process, and then is irradiated toward the light-shielding pattern 404 by an exposure beam I, and the exposure beam I is irradiated to the part of the photosensitive adhesive material 406 through the light-shielding pattern 404, the photosensitive adhesive material 406 without being irradiated by light can be removed by the developing solution, and through the patterning process, the photosensitive adhesive material 406 without being removed forms adhesive retaining walls 4061 at the periphery of the light shielding pattern 404, and the light shielding pattern 404 and the adhesive retaining walls 4061 are alternately arranged to form a plurality of grooves 4062.
As shown in fig. 4E, the electrically-driven display material 408 is placed in the grooves 4062, and the second substrate 407 is adhered to the first substrate 401 by the adhesive retaining walls 4061. For example, the electrically-driven display material 408 may be disposed in the recess 4062 by pouring, spraying, or the like, and then the first substrate 401 is adhered to the second substrate 407 by the adhesive wall 4061, thereby confining the electrically-driven display material 408 in the space formed by the first substrate 401, the second substrate 407, and the adhesive wall 4061, and the electrically-driven display material 408 may be driven by the electrically-conductive light-shielding pattern 404 on the first substrate 401 and the electrically-conductive pattern 409 disposed on the second substrate 407, thereby forming the electrically-driven element 4 of the present invention.
In addition, it should be noted that the adhesive retaining wall 4061 formed by the photosensitive adhesive material 406 may be cured while the first substrate 401 and the second substrate 407 are adhered, or alternatively, another curing process may be performed after the first substrate 401 and the second substrate 407 are adhered, for example, if the photosensitive adhesive material 406 adopts two-stage curing UV glue, after the first substrate 401 and the second substrate 407 are adhered by the adhesive retaining wall 4061, another UV light source is exposed or heated to completely cure the two-stage curing UV glue, and the completely cured adhesive retaining wall 4061 further helps to fix the distance between the first substrate 401 and the second substrate 407. In addition, the electrically-driven display material 408 may be a Liquid Crystal material such as Nematic Liquid Crystal (Nematic Liquid Crystal), Cholesteric Liquid Crystal (Cholesteric Liquid Crystal), or other Liquid Crystal display material, or an Organic Electroluminescent (OEL) material such as organic light-emitting diode (OLED), polymer light-emitting diode (PLED), or other organic electroluminescent display material. The second substrate 407 may be a rigid substrate or a flexible substrate, in which the rigid substrate is made of glass or other rigid transparent materials, and the flexible substrate is made of plastic materials such as Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). In addition, the second substrate 407 has a conductive pattern 409, and the conductive pattern 409 may be a transparent conductive material, such as Indium Tin Oxide (ITO), transparent conductive Polymer (PEDOT), metal mesh, graphene, nano-silver metal film, or a combination thereof, but the invention is not limited thereto.
In addition, the light-shielding pattern, the photosensitive material layer and the light source for providing the exposure beam I used in the above embodiments may be selected according to their optical characteristics, that is, when a material having a specific absorption band is selected as the light-shielding pattern, a light source capable of being absorbed in the absorption band and having a wavelength range capable of reacting with the photosensitive material layer must be used, for example, if the light-shielding pattern is a light-absorbing material having a cut-off wavelength of 380nm or less and the photosensitive wavelength of the photosensitive material layer is 365nm, a UV LED having a wavelength of 365nm or other light source having the same wavelength may be selected to provide the exposure beam I. For another example, the light-shielding pattern is a light-absorbing material having a cut-off wavelength of 380nm or more, and the photosensitive material layer has a photosensitive wavelength of 400nm, in which case a UV LED having a wavelength of 400nm or other light source having the same wavelength may be selected to provide the exposure beam I. However, the present invention is not limited to the above.
In summary, the electrically driven device and the manufacturing method thereof disclosed in the present invention are suitable for displays using electrically driven fluid as display material, such as liquid crystal displays, organic electroluminescent displays, electrowetting displays, etc. since the electrically driven device of the present invention is provided with the viscous wall, the viscous wall not only defines the recess with the conductive pattern to accommodate the fluid display materials that need to be isolated from each other, but also can be further used for bonding two substrates, therefore, it is not necessary to additionally provide a structure for bonding the two substrates and to complete the packaging of the panel, so as to improve the convenience of the process and reduce the cost. In addition, in the manufacturing method of the invention, the same shading pattern can be used as a mask to form the conductive pattern and the viscous retaining wall which are adjacent to each other, even the shading pattern can be formed by adopting a material with conductivity and used as a mask of the patterned photosensitive adhesive material, therefore, the problem of contraposition deviation caused by the realignment of the mask in different patterning processes due to the deformation of the flexible substrate can be avoided, and the yield of products can be improved by improving the contraposition precision.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify the above-described embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (15)
1. A method of manufacturing an electrically driven element, comprising:
providing a first substrate with a first surface and a second surface which are opposite, wherein a plurality of conductive patterns are formed on the first surface;
covering a photosensitive adhesive material on the conductive pattern and the first surface of the first substrate not covered by the conductive pattern;
patterning the photosensitive adhesive material to form a viscous retaining wall at the periphery of the conductive pattern, and defining a plurality of grooves by the staggered arrangement of the conductive pattern and the viscous retaining wall;
disposing an electrically driven display material in the recess; and
and adhering a second substrate to the first substrate via the adhesive retaining wall.
2. A method for manufacturing an electrically driven element according to claim 1, wherein the viscous retaining wall is formed by:
arranging a photosensitive adhesive material on the first surface of the first substrate;
arranging a shading pattern on the top surface of the photosensitive adhesive material or the bottom surface opposite to the top surface;
irradiating with an exposure beam toward the light-shielding pattern; and
removing the part of the photosensitive adhesive material which is not irradiated by the exposure light beam to form the viscous retaining wall.
3. A method for manufacturing an electrically driven element according to claim 1, wherein the material of the conductive pattern comprises ito, transparent conductive polymer, metal mesh, graphene or nano-silver metal film.
4. The method as claimed in claim 1, wherein the conductive pattern and the adhesive wall are formed by the same light-shielding pattern during the patterning process.
5. The method of claim 1, wherein the photo-sensitive adhesive material is a dry film photoresist, a wet film photoresist, a UV pressure sensitive adhesive, a UV anaerobic adhesive, or a two-stage curing UV adhesive.
6. The method as claimed in claim 1, wherein the second substrate further comprises a conductive pattern thereon, such that the electrically-driven display material is driven by the conductive pattern on the first substrate and the conductive pattern on the second substrate.
7. The method of claim 1, wherein the first substrate and the second substrate are glass or polycarbonate, polyimide, polyethylene terephthalate or polyethylene naphthalate flexible plastic substrates.
8. The method as claimed in claim 1, further comprising patterning the photosensitive adhesive material with the conductive pattern, wherein the conductive pattern is used as a light-shielding pattern.
9. An electrically driven element, comprising:
a first substrate, a plurality of conductive patterns are arranged on one surface of the first substrate, and viscous retaining walls formed by photosensitive adhesive materials are arranged at the peripheries of the conductive patterns, so that a plurality of grooves are defined by the staggered arrangement of the conductive patterns and the viscous retaining walls;
an electrically driven display material disposed in the recess; and
a second substrate adhered to the first substrate by the adhesive wall.
10. The device of claim 9, wherein the conductive pattern and the adhesive wall are formed by the same light-shielding pattern during the patterning process.
11. An electrically driven element according to claim 9, characterized in that the material of the conductive pattern comprises indium tin oxide, a transparent conductive polymer, a metal mesh, graphene or a nano-silver metal film.
12. The device of claim 9, wherein the photo-sensitive adhesive material is a dry film photoresist, a wet film photoresist, a UV pressure sensitive adhesive, a UV anaerobic adhesive, or a two-stage curing UV adhesive.
13. The device of claim 9, wherein the second substrate has a conductive pattern thereon, such that the electrically-driven display material is driven by the conductive pattern on the first substrate and the conductive pattern on the second substrate.
14. The device of claim 9, wherein the first substrate and the second substrate are glass or polycarbonate, polyimide, polythene terephthalate or polyethylene naphthalate flexible plastic substrates.
15. An electrically driven element according to claim 9, characterized in that the electrically conductive pattern is a light-blocking pattern.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| TW107123699A TWI685825B (en) | 2018-07-09 | 2018-07-09 | Display and manufacturing method thereof |
| TW107123699 | 2018-07-09 |
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| CN110706589A true CN110706589A (en) | 2020-01-17 |
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| CN201910371691.9A Withdrawn CN110706589A (en) | 2018-07-09 | 2019-05-06 | Electric driving element and method for manufacturing the same |
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| TW (1) | TWI685825B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113514997A (en) * | 2021-07-21 | 2021-10-19 | 蓝思科技（长沙）有限公司 | Electrochromic process and electrochromic device |
| CN113675315A (en) * | 2020-05-14 | 2021-11-19 | 成都辰显光电有限公司 | Display panel and preparation method thereof |
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| CN103165526A (en) * | 2011-12-16 | 2013-06-19 | 财团法人工业技术研究院 | Manufacturing method of array substrate, display panel and manufacturing method of display panel |
| CN103247366A (en) * | 2013-03-28 | 2013-08-14 | 南昌欧菲光科技有限公司 | Capacitance transparent conductive film and manufacturing method thereof |
| CN107833909A (en) * | 2017-11-30 | 2018-03-23 | 深圳市华星光电技术有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1825169A (en) * | 2005-02-22 | 2006-08-30 | 财团法人工业技术研究院 | Passive matrix display and mfg. method |
| TWI340937B (en) * | 2007-10-16 | 2011-04-21 | Ind Tech Res Inst | Flexible display and manufacturing method thereof |
| TW201327509A (en) * | 2011-12-30 | 2013-07-01 | Ind Tech Res Inst | Method for manufacturing a flexible display |
| TWM569484U (en) * | 2018-07-09 | 2018-11-01 | 希映科技股份有限公司 | Display |
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2018
- 2018-07-09 TW TW107123699A patent/TWI685825B/en active
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- 2019-05-06 CN CN201910371691.9A patent/CN110706589A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165526A (en) * | 2011-12-16 | 2013-06-19 | 财团法人工业技术研究院 | Manufacturing method of array substrate, display panel and manufacturing method of display panel |
| CN103247366A (en) * | 2013-03-28 | 2013-08-14 | 南昌欧菲光科技有限公司 | Capacitance transparent conductive film and manufacturing method thereof |
| CN107833909A (en) * | 2017-11-30 | 2018-03-23 | 深圳市华星光电技术有限公司 | Display panel and display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113675315A (en) * | 2020-05-14 | 2021-11-19 | 成都辰显光电有限公司 | Display panel and preparation method thereof |
| CN113514997A (en) * | 2021-07-21 | 2021-10-19 | 蓝思科技（长沙）有限公司 | Electrochromic process and electrochromic device |
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| Publication number | Publication date |
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| TWI685825B (en) | 2020-02-21 |
| TW202006685A (en) | 2020-02-01 |
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