CN111354263A - Display device and method for manufacturing display device - Google Patents
Display device and method for manufacturing display device Download PDFInfo
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- CN111354263A CN111354263A CN201911232708.9A CN201911232708A CN111354263A CN 111354263 A CN111354263 A CN 111354263A CN 201911232708 A CN201911232708 A CN 201911232708A CN 111354263 A CN111354263 A CN 111354263A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 107
- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 description 180
- 239000000243 solution Substances 0.000 description 58
- 239000008155 medical solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
Abstract
The invention discloses a display device and a method for manufacturing the same. According to the method of manufacturing a display device, a substrate including an edge region having a side portion and a remaining region may be provided. A chemical may be supplied onto the edge area under a first chemical supply condition to form a first printed layer on the edge area. Supplying the chemical solution on the remaining region under a second chemical solution supply condition to form a second printed layer on the remaining region. The first printed layer may have a thickness substantially the same as that of the second printed layer. The present invention can be advantageously used for various electronic apparatuses including a display device having a recently reduced bezel and various structures.
Description
The present application has priority to korean patent application No. 10-2018-.
Technical Field
Exemplary embodiments of the present invention relate to a display device and a method of manufacturing the display device. More particularly, exemplary embodiments of the present invention relate to a display device including printed layers uniformly formed on the front and side portions of a substrate having various structures and a method of manufacturing the display device.
Background
In manufacturing a conventional display device used for an electronic apparatus such as a mobile phone, the display device has a wide bezel (bezel) area and a quadrangular screen, and thus a printed layer can be formed on a substrate relatively easily in order to manufacture the display device. Recently, the bezel area of the display device is continuously reduced, and the screen of the display device is enlarged to a side of the substrate having a curved structure or a planar structure. However, it is difficult to form a printed layer having a uniform thickness on a side of a substrate having a curved structure through an existing printing process for forming a printed layer on a substrate having a planar structure.
Disclosure of Invention
Technical problem
An object of the present invention is to provide a display device including printed layers substantially uniformly formed on the front and side portions of a substrate having various structures.
Another object of the present invention is to provide a method of manufacturing a display device including printed layers substantially uniformly formed on the front and side portions of a substrate having various structures.
Technical scheme
According to an aspect of the present invention, there is provided a display device, which may include: a substrate including an edge region having a side and a remaining region; a first printed layer formed on the edge region by supplying a chemical solution onto the edge region under a first supply condition; and a second printed layer formed on the remaining region by supplying the chemical solution onto the remaining region under a second supply condition. Wherein the first printing layer may have the same thickness as that of the second printing layer.
In an exemplary embodiment, the first and second chemical solution supply conditions may be adjusted by adjusting a gradation of the chemical solution, adjusting a gray scale of the chemical solution, or adjusting the gradation of the chemical solution and the gray scale of the chemical solution.
In an exemplary embodiment, the side portions of the edge region may have a substantially curved structure or a substantially planar structure.
In some exemplary embodiments, the remaining area of the substrate may include at least two portions. The display device may include the second printing layer formed on one portion of the remaining region, a third printing layer formed on another portion of the remaining region, and a fourth printing layer formed on yet another portion of the remaining region.
In some exemplary embodiments, in a case where the thickness of the first printing layer is different from the thickness of the second printing layer, the display device may further include a compensation layer disposed on one of the first printing layer and the second printing layer. In this case, the compensation layer may be formed by selectively supplying the chemical solution onto the printing layer having a relatively small thickness of the first printing layer and the second printing layer such that the thickness of the first printing layer is substantially the same as the thickness of the second printing layer.
According to another aspect of the present invention, there is provided a method of manufacturing a display device. According to the method of manufacturing the display device, a substrate including an edge region having a side portion and a remaining region may be provided. A chemical may be supplied onto the edge area under a first chemical supply condition to form a first printed layer on the edge area. The chemical liquid may be supplied onto the remaining region under a second chemical liquid supply condition to form a second printed layer on the remaining region. The first printed layer may have a thickness substantially the same as that of the second printed layer.
In an exemplary embodiment, the first and second chemical solution supply conditions may be adjusted by adjusting a gradual change of the chemical solution, adjusting a gray scale of the chemical solution, or adjusting a gradual change of the chemical solution and adjusting a gray scale of the chemical solution.
In an exemplary embodiment, the side portions of the edge region may have a substantially curved structure or a substantially planar structure. In some exemplary embodiments, the remaining area of the substrate may include three portions. In the method of manufacturing the display device, the second printing layer may be formed on one portion of the remaining region, the third printing layer may be formed on another portion of the remaining region, and the fourth printing layer may be formed on yet another portion of the remaining region.
In some exemplary embodiments, in a case where the thickness of the first printing layer is different from the thickness of the second printing layer, a compensation layer may be further formed on one of the first printing layer and the second printing layer. The compensation layer may be formed by selectively supplying the chemical solution onto one of the first and second printing layers having a relatively small thickness such that the thickness of the first printing layer is substantially the same as the thickness of the second printing layer.
Technical effects
According to exemplary embodiments of the present invention, it is possible to form a printing layer having a substantially uniform thickness not only on the front surface of the substrate but also on the side portion of the substrate having a substantially curved surface structure or a substantially planar structure. Therefore, the display device can be advantageously used for various electronic apparatuses including a display device having a recently reduced bezel and various structures.
However, the effects of the present invention are not limited to the above-described effects, and various expansions can be made without departing from the spirit and scope of the present invention.
Drawings
Fig. 1 is a schematic plan view for explaining a display device according to an exemplary embodiment of the present invention;
fig. 2 is a sectional view for explaining a display device according to an exemplary embodiment of the present invention;
fig. 3 is a partially enlarged cross-sectional view for explaining a side region of a display device according to an exemplary embodiment of the present invention;
fig. 4 is a cross-sectional view of a display device for illustrating a part of an exemplary embodiment of the present invention;
fig. 5 is a sectional view for explaining a method of manufacturing a display device according to an exemplary embodiment of the present invention.
Detailed Description
The present invention can be variously modified and variously modified, and the embodiments will be described in detail in the present specification. However, the present invention is not intended to be limited to the specific forms disclosed, and all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention are to be understood. Like reference numerals are used for like components in describing the respective drawings. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are only used to distinguish one constituent element from other constituent elements. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references also include plural references without explicit recitation herein. The terms "comprises" or "comprising" or the like in the present application should be interpreted as specifying the presence of the stated features, integers, steps, acts, elements, components, or groups thereof, and should not be interpreted as precluding the presence or addition of one or more other features, integers, steps, acts, elements, components, or groups thereof.
Unless otherwise defined, all terms used herein including technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with the meaning of context in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
A display device according to an exemplary embodiment of the present invention may include a printed layer disposed on a substrate having various structures such as a substantially curved structure and/or a substantially planar structure. Recent electronic devices such as cellular phones, smartwatches, wearable devices, and the like require display devices having various structures such as a narrow bezel, a curved structure, and/or a flat structure, which are continuously decreasing, and the display device according to the exemplary embodiment of the present invention can be advantageously used for such recent electronic devices. In the method of manufacturing a display device according to the exemplary embodiment, since a chemical solution including an Optical Clear Resist (OCR) can be supplied onto a substrate under chemical solution supply conditions in which the chemical solution is appropriately adjusted, a printing layer constituting a panel of the display device can be formed to a substantially uniform thickness on a substrate having various structures without using an Optical Clear Adhesive (OCA). Therefore, the quality of the printing layer can be improved, and thus the quality of an image displayed on the screen of the display device can be improved.
Hereinafter, a display device according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a schematic plan view for explaining a display device according to an exemplary embodiment of the present invention. Fig. 2 is a sectional view for explaining a display device according to an exemplary embodiment of the present invention. Fig. 3 is a partially enlarged cross-sectional view for explaining a side region of a display device according to an exemplary embodiment of the present invention.
Referring to fig. 1 and 2, a display device 100 of an exemplary embodiment may include a substrate 11, a plurality of printed layers, conductive patterns, driving elements, wirings, and the like.
The substrate 11 may be configured to form a touch screen of the display device 100. For example, the substrate 100 may include a glass substrate, a plastic substrate, a resin substrate, and the like.
The plurality of printed layers may be disposed on the substrate 11. In this case, different printing layers may be disposed on different regions of the substrate 11. In other words, different printed layers may be disposed on different portions of the substrate 11.
In an exemplary embodiment, the substrate 11 may include at least two regions on which the printed layer is disposed. In other words, at least two printed layers may be disposed on the substrate 11. Such a region of the substrate 11 may be divided into an edge region and the remaining region. The edge region may include a side portion 13 of the substrate 11. Also, the edge region may include a peripheral region that is extended from the side 13 of the substrate 11. In this case, the remaining region of the substrate 11 may include a front region having a central portion. According to circumstances, the remaining region of the substrate 11 may include a rear region.
In some exemplary embodiments, the edge region of the substrate 11 may have a specified curvature. That is, although fig. 2 shows the substrate 11 having the substantially right-angled edge region, the edge region of the substrate 11 may have a desired curvature according to the type of the display device 100, such as fig. 3. In the case where the edge region of the substrate 11 has a predetermined curvature, the printed layer disposed on such edge region may have a curvature.
In the present invention, the side portion 13 of the substrate 11 included in the edge region may have various structures. The side portions 13 of the edge region may have a substantially planar configuration in an exemplary embodiment as illustrated in fig. 2. In some exemplary embodiments, the side portion 13 of the edge region may also have a substantially curved configuration as illustrated in fig. 3. Also, the remaining area of the substrate 11 may have a substantially planar structure. Therefore, the printed layer may be substantially flat on the remaining area of the substrate 11, and may be substantially flat or substantially curved on the side portion 13 of the edge area.
As described above, in the case where the substrate 11 is divided into the edge region having the side portion 13 and the remaining region, the plurality of printed layers may include the first printed layer 15 disposed on the edge region and the second printed layer 17 disposed on the remaining region.
In an exemplary embodiment, a front area of the remaining area of the substrate 11 may also have at least two portions according to the type of the display device 100. For example, as illustrated in fig. 1 and 2, the remaining area of the substrate 11 may be divided into three portions.
In the case where the remaining region of the substrate 11 has three portions, the plurality of printed layers may include the first printed layer 15 disposed on the edge region, and the second printed layer 17, the third printed layer 19, and the fourth printed layer 21 disposed on the remaining region. Here, the second printed layer 17 may be disposed on a portion adjacent to the edge region, the fourth printed layer 21 may be located on a central portion of the substrate 11, and the third printed layer 19 may be disposed between the second printed layer 17 and the fourth printed layer 21.
In an exemplary embodiment, the first printing layer 15 may be formed by supplying a chemical on an edge region of the substrate 11 under a first chemical supply condition. The second printing layer 17 may be formed by supplying the chemical solution under a second chemical solution supply condition onto the remaining region of the substrate 11.
As described above, in the case where the remaining region of the substrate 11 includes three portions, the second printed layer 17 may be formed by supplying the chemical solution under the second chemical solution supply condition onto one portion of the remaining region, and the third printed layer 19 may be formed by supplying the chemical solution under the third chemical solution supply condition onto the other portion of the remaining region. Also, the fourth printing layer 21 may be formed by supplying a chemical solution under a fourth chemical solution supply condition to the other portion of the remaining region.
In an exemplary embodiment, the edge region and the remaining region may be located in substantially the same plane except for the side portion 13 of the edge region, and thus a portion of the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 may have a single-layer structure, respectively. Here, when a part of the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 have different thicknesses, an image displayed on the screen of the display device 100 may be defective.
When the portion of the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 are formed under substantially the same chemical solution supply condition, the portion of the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 may have different thicknesses due to a structure such as a driving element, a wiring, and/or a conductive pattern that is previously disposed on the substrate 11. Also, the thickness of the first printed layer 15 formed on the edge area including the side portion 13 may not be uniform as a whole.
In an exemplary embodiment, the first printed layer 15 disposed on the edge region and the second to fourth printed layers 17, 19 and 21 disposed on the remaining region may be formed under different chemical solution supply conditions, and thus each of the first printed layer 15, the second printed layer 17, the third printed layer 19 and the fourth printed layer 21 may have a substantially uniform thickness. For example, since the amount of the chemical solution to be supplied and/or the time for supplying the chemical solution to be discharged to the edge region and the remaining region can be adjusted to form the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21, the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 can have substantially constant thicknesses, respectively. In other words, the first printing layer 15 may be formed under a first chemical supplying condition, and the second printing layer 17 may be formed under a second chemical supplying condition. The third printing layer 19 may be formed under a third chemical supplying condition, and the fourth printing layer 21 may be formed under a fourth chemical supplying condition. Here, the first chemical solution supply condition, the second chemical solution supply condition, the third chemical solution supply condition, and/or the fourth chemical solution supply condition may be substantially the same or may be different.
In an exemplary embodiment, the first, second, third, and fourth chemical supply conditions may be adjusted by adjusting a gradation of the chemical, adjusting a gray scale of the chemical, or adjusting the gradation of the chemical and adjusting the gray scale of the chemical. For example, the number of droplets in the chemical solution discharged to the edge region and the remaining region of the substrate 11 may be adjusted by adjusting the size of the droplets in the chemical solution supplied to the edge region and the remaining region of the substrate 11 in a gradual manner and/or adjusting the gray scale of the chemical solution. Accordingly, the chemical may be supplied onto the edge region and the remaining region of the substrate 11 under the first chemical supplying condition, the second chemical supplying condition, the third chemical supplying condition, and the fourth chemical supplying condition adjusted as described above such that a portion of each of the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21 has a substantially uniform thickness. The first printed layer 15 having a substantially uniform thickness may be formed on the side portion 13 of the substrate 11. That is, the first printed layer 15 formed on the edge region may have an entirely uniform thickness.
In an exemplary embodiment, in the case where the density of gradation with respect to the medical solution is increased in a range of, for example, about 0% to about 100% or the level of the gray scale with respect to the medical solution is increased in a range of, for example, level 1 to level 4, each of the first to fourth printed layers 15, 17, 19, 21 may have a relatively thick thickness. In contrast, in the case where the density of gradation with respect to the medical solution is reduced in the range of, for example, about 100% to about 0% or the level of gradation with respect to the medical solution is reduced in the range of, for example, level 4 to level 1, each of the first to fourth printed layers 15, 17, 19, 21 may have a relatively thin thickness.
In some exemplary embodiments, the first printed layer 15 and the second to fourth printed layers 17, 19, 21 may be formed on the edge region and the remaining region, respectively, substantially simultaneously. For example, the first to fourth printed layers 15, 17, 19, 21 may be simultaneously formed on the substrate 11 using a printing process performed in-situ (in-situ).
In the step of forming the first to fourth printed layers 15, 17, 19 and 21 on the substrate 11, the thickness of the first printed layer 15 on the edge region may be different from the thickness of the second to fourth printed layers 17, 19 and 21 on the remaining region. To address this issue, in some exemplary embodiments, the display device 100 may further include a compensation layer.
A display device including a compensation layer of some exemplary embodiments of the present invention is described below.
Fig. 4 is a cross-sectional view of a display device for illustrating a part of an exemplary embodiment of the present invention.
Referring to fig. 4, in the case where the first printed layer 41 on the edge area has a substantially small thickness compared to the second to fourth printed layers 17, 19, 21 on the remaining area, the display device 100 may include a compensation layer 43 disposed on the first printed layer 41 such that the thickness of the first printed layer 41 is substantially the same as the thickness of the second to fourth printed layers 17, 19, 21. In other words, the compensation layer 43 may compensate the thickness of the first printed layer 41 to be substantially the same as the thickness of the first printed layer 41 and the thickness of the second to fourth printed layers 17, 19, 21. That is, the sum of the thickness of the compensation layer 43 and the thickness of the first printed layer 41 may be substantially the same as the thickness of each of the second to fourth printed layers 17, 19, 21.
In another exemplary embodiment, in the case where at least one of the first to fourth printed layers 15, 17, 19, 21 has a relatively small thickness, the compensation layer 43 may be provided on at least one of the printed layers having a relatively small thickness in order to compensate the thickness of the printed layer having such a relatively small thickness for the remaining printed layers. For example, the compensation layer 43 may be formed by selectively supplying the chemical solution onto a printing layer having a relatively small thickness among the first printing layer 15, the second printing layer 17, the third printing layer 19, and the fourth printing layer 21.
In some exemplary embodiments, in order to compensate for the thickness of the first printing layer 41, the compensation layer 43 may be formed by supplying the chemical to a portion of the first printing layer 41 or to the entire first printing layer 41 under the first chemical supply condition. In another exemplary embodiment, the compensation layer 43 may be formed by supplying the chemical solution onto the second printing layer 17 under the second chemical solution supply condition in order to compensate for the thickness of the second printing layer 17. In still another exemplary embodiment, the compensation layer 43 may be formed by supplying the chemical solution to the third printing layer 19 or the fourth printing layer 21 under the third chemical solution supply condition or the fourth chemical solution supply condition in order to compensate for the thickness of the third printing layer 19 or the fourth printing layer 21.
As described above, the display device 100 may include the printed layer of the substantially uniform thickness on the front and side portions 13 of the substrate 11, and thus the display device 100 can be advantageously used for various electronic apparatuses including display devices having recently reduced bezels and various structures.
A method of manufacturing a display device according to an exemplary embodiment of the present invention is described below.
As illustrated in fig. 1 to 4, the substrate 11 may be provided to include an edge region having the side portion 13 and the remaining region.
The chemical liquid may be supplied on the edge area under the first chemical liquid supply condition to form the first printed layer 15 on the edge area, while the chemical liquid may be supplied on the remaining area under the second chemical liquid supply condition to form the second printed layer 17 on the remaining area.
In some exemplary embodiments, the chemical solution may be supplied to one portion of the remaining region under the second chemical solution supply condition to form the second printed layer 17 on the one portion of the remaining region, the chemical solution may be supplied to another portion of the remaining region under the third chemical solution supply condition to form the third printed layer 19 on the another portion of the remaining region, and the chemical solution may be supplied to yet another portion of the remaining region under the fourth chemical solution supply condition to form the fourth printed layer 21 on the yet another portion of the remaining region. As described above, the chemical solution may be supplied to the edge region and the remaining region of the substrate 11 under the first chemical solution supply condition, the second chemical solution supply condition, the third chemical solution supply condition, and the fourth chemical solution supply condition by adjusting the gradual change of the chemical solution, the gray scale of the chemical solution, or both the gradual change of the chemical solution and the gray scale of the chemical solution. Therefore, the first, second, third, and fourth printing layers 15, 17, 19, and 21 can be formed to have a substantially uniform thickness. In this case, the first printed layer 15 may be formed to have a uniform thickness on the side portion 13 of the substrate 11. As a result, even when the side portion 13 of the substrate 11 has a substantially curved structure or a substantially flat structure, the first printed layer 15 having a substantially uniform thickness can be formed on the side portion 13.
Fig. 5 is a schematic plan view for explaining a method of manufacturing a display device of a part of an exemplary embodiment of the present invention.
Referring to fig. 5, in a case where at least one of the first, second, third, and fourth printing layers 41, 17, 19, and 21 has a relatively small thickness (e.g., in a case where the first printing layer 41 has a relatively small thickness), the chemical solution may be selectively supplied onto the printing layer having a relatively small thickness (e.g., the first printing layer 41) among the first to fourth printing layers 41, 17, 19, and 21. Accordingly, the compensation layer 43 may be formed on the printing layer having a relatively small thickness (e.g., the first printing layer 41). With such a compensation layer 43, the thickness of the printed layer having a relatively small thickness (e.g., the first printed layer 41) can be made substantially the same as the thickness of the other printed layers (e.g., the second to fourth printed layers 17, 19, 21). In other words, a printed layer having a substantially uniform thickness may be formed on the side portion 13 of the substrate 11, not only on the front surface of the substrate 11.
The exemplary embodiments of the present invention have been described above, but it should be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention as set forth in the appended claims.
Claims (10)
1. A display device, comprising:
a substrate including an edge region having a side and a remaining region;
a first printed layer formed on the edge region by supplying a chemical solution onto the edge region under a first supply condition; and
a second printing layer formed on the remaining region by supplying the chemical solution onto the remaining region under a second supply condition,
wherein the first printing layer has the same thickness as that of the second printing layer.
2. The display device according to claim 1, wherein:
the first chemical supply condition and the second chemical supply condition are adjusted by adjusting a gradation of the chemical, adjusting a gray scale of the chemical, or adjusting the gradation of the chemical and the gray scale of the chemical.
3. The display device according to claim 1, wherein:
the side of the edge area has a curved structure or a planar structure.
4. The display device according to claim 1, wherein:
the remaining area of the substrate comprises at least two portions.
5. The display device according to claim 4, wherein:
the display device includes the second printing layer formed on one portion of the remaining region, a third printing layer formed on another portion of the remaining region, and a fourth printing layer formed on yet another portion of the remaining region.
6. The display device according to claim 1, wherein:
in the case where the thickness of the first printing layer is different from the thickness of the second printing layer, the ink jet recording apparatus further includes a compensation layer disposed on one of the first printing layer and the second printing layer, the compensation layer being formed by selectively supplying the chemical solution onto a printing layer having a relatively small thickness of the first printing layer and the second printing layer such that the thickness of the first printing layer is the same as the thickness of the second printing layer.
7. A method of manufacturing a display device, comprising:
a step of providing a substrate including an edge region having a side and a remaining region;
a step of supplying a chemical liquid onto the edge area under a first chemical liquid supply condition to form a first printed layer on the edge area; and
a step of supplying the chemical liquid onto the remaining region under a second chemical liquid supply condition to form a second printed layer on the remaining region,
wherein the first printing layer has the same thickness as that of the second printing layer.
8. The method for manufacturing a display device according to claim 7, wherein:
the first and second chemical liquid supply conditions are adjusted by adjusting the gradual change of the chemical liquid, adjusting the gray scale of the chemical liquid, or adjusting the gradual change of the chemical liquid and adjusting the gray scale of the chemical liquid.
9. The method for manufacturing a display device according to claim 7, wherein:
the side of the edge region has a curved structure or a planar structure, the remaining region of the substrate includes three portions,
the method of manufacturing the display device further includes:
a step of forming the second printing layer on a part of the remaining region;
a step of forming a third printed layer on another part of the remaining region; and
a step of forming a fourth printed layer on yet another part of the remaining area.
10. The method for manufacturing a display device according to claim 7, wherein:
when the thickness of the first printing layer is different from the thickness of the second printing layer, the method further comprises a step of forming a compensation layer on one of the first printing layer and the second printing layer,
the compensation layer is formed by selectively supplying the chemical solution onto one of the first and second printing layers having a relatively small thickness such that the thickness of the first printing layer is the same as the thickness of the second printing layer.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020180167227A KR102089351B1 (en) | 2018-12-21 | 2018-12-21 | Display Device and Method for Manufacturing Display Device |
KR10-2018-0167227 | 2018-12-21 |
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CN111354263A true CN111354263A (en) | 2020-06-30 |
CN111354263B CN111354263B (en) | 2023-12-12 |
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Citations (10)
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