CN117348307A - Display device and manufacturing method thereof - Google Patents

Display device and manufacturing method thereof Download PDF

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Publication number
CN117348307A
CN117348307A CN202210753364.1A CN202210753364A CN117348307A CN 117348307 A CN117348307 A CN 117348307A CN 202210753364 A CN202210753364 A CN 202210753364A CN 117348307 A CN117348307 A CN 117348307A
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CN
China
Prior art keywords
layer
side edge
protective layer
display device
adhesive layer
Prior art date
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Pending
Application number
CN202210753364.1A
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Chinese (zh)
Inventor
许财维
黄彦泽
郑元勛
陈一鋐
黄振勛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Transcend Optronics Technology Yangzhou Co ltd
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Transcend Optronics Technology Yangzhou Co ltd
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Application filed by Transcend Optronics Technology Yangzhou Co ltd filed Critical Transcend Optronics Technology Yangzhou Co ltd
Priority to CN202210753364.1A priority Critical patent/CN117348307A/en
Publication of CN117348307A publication Critical patent/CN117348307A/en
Pending legal-status Critical Current

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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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides a display device and a manufacturing method thereof. The display device comprises a driving substrate, a display medium layer, a glue layer and a protective layer. The display medium layer is configured on the driving substrate. The glue layer is arranged around the display medium layer. The protective layer covers the display medium layer and the adhesive layer, wherein the protective layer bends along the adhesive layer towards the direction of the driving substrate. The display device and the manufacturing method thereof can increase the lateral water blocking effect and have better structural reliability.

Description

Display device and manufacturing method thereof
Technical Field
The present invention relates to a display device and a method for manufacturing the same, and more particularly, to a display device capable of increasing a lateral water blocking effect and a method for manufacturing the same.
Background
In the existing electronic paper display, the display medium layer is located between the protective layer and the driving substrate, wherein after the components are assembled, an adhesive layer is formed between the protective layer and the display medium layer in a dispensing mode and extends to cover the peripheral surface of the protective layer to serve as a lateral water-gas blocking structure of the electronic paper display. However, the water vapor transmission rate (Water vapor transmission rate, WVTR) of the adhesive layer is greater than that of the protective layer, so that the adhesive layer cannot have a better water blocking effect on the lateral direction of the display medium layer, thereby affecting the structural reliability of the electronic paper display.
Disclosure of Invention
The invention is directed to a display device and a manufacturing method thereof, which can increase the lateral water blocking effect and have better structural reliability.
According to an embodiment of the invention, a display device includes a driving substrate, a display medium layer, a glue layer, and a protective layer. The display medium layer is configured on the driving substrate. The glue layer is arranged around the display medium layer. The protective layer covers the display medium layer and the adhesive layer, wherein the protective layer bends along the adhesive layer towards the direction of the driving substrate.
In the display device according to the embodiment of the invention, the display medium layer and the adhesive layer are completely covered between the driving substrate and the protective layer.
In the display device according to the embodiment of the invention, the driving substrate has a surface, and the protective layer is folded onto the surface and covers a portion of the surface along the extending direction of the driving substrate.
In the display device according to the embodiment of the invention, the first side edge of the protective layer, the second side edge of the adhesive layer and the side edge of the driving substrate are aligned.
In an embodiment of the present invention, the display device further includes an adhesive layer disposed between the protective layer and the display medium layer and between the protective layer and the adhesive layer. The third side edge of the adhesive layer is cut in line with the first side edge of the protective layer, the second side edge of the adhesive layer and the side edge of the driving substrate.
In an embodiment of the present invention, the first side edge of the protective layer is aligned with the second side edge of the adhesive layer, and the adhesive layer covers the side edge of the driving substrate.
In an embodiment of the present invention, the display device further includes an adhesive layer disposed between the protective layer and the display medium layer and between the protective layer and the adhesive layer. The third side edge of the adhesive layer is cut in line with the first side edge of the protective layer and the second side edge of the adhesive layer.
In the display device according to the embodiment of the invention, the thickness of the display medium layer is H1, and the distance between the side edge of the driving substrate and the protective layer is H2, wherein H2 is less than 1/2×h1.
In the display device according to an embodiment of the invention, the moisture transmittance of the adhesive layer is less than 30g/m 2 day。
In the display device according to the embodiment of the invention, the moisture transmittance of the protective layer is less than 1g/m 2 day。
In an embodiment of the present invention, a material of the protective layer includes a light-transmitting material, and a light transmittance of the protective layer is greater than 80%.
According to an embodiment of the present invention, a method for manufacturing a display device includes the following steps. A drive substrate is provided. A display medium layer is disposed on the driving substrate. And forming a glue layer around the display medium layer. And attaching a protective layer to the display medium layer. Curing the adhesive layer, wherein the protective layer is bent along the adhesive layer in the direction of driving the substrate
In the method for manufacturing a display device according to the embodiment of the invention, the attaching the protective layer to the display medium layer is before forming the adhesive layer around the display medium layer, and the adhesive layer covers the side edge of the driving substrate.
In an embodiment of the present invention, the method further includes performing a dicing process to dice the protective layer and the adhesive layer.
In the method for manufacturing a display device according to an embodiment of the invention, the first side edge of the protective layer, the second side edge of the adhesive layer, and the side edge of the driving substrate are aligned.
In the method for manufacturing a display device according to an embodiment of the invention, the first side edge of the protective layer is aligned with the second side edge of the adhesive layer.
In the method for manufacturing a display device according to an embodiment of the invention, the method for manufacturing a display device further includes forming an adhesive layer on the display medium layer before attaching the protective layer on the display medium layer. After forming the glue layer around the display medium layer, a cutting procedure is performed to cut the protection layer, the adhesive layer and the glue layer.
In the method for manufacturing a display device according to an embodiment of the invention, the third side edge of the adhesive layer is aligned with the first side edge of the protective layer, the second side edge of the adhesive layer, and the side edge of the driving substrate.
In the method for manufacturing a display device according to an embodiment of the invention, the third side edge of the adhesive layer is aligned with the first side edge of the protective layer and the second side edge of the adhesive layer.
In the method for manufacturing a display device according to the embodiment of the invention, the attaching the protective layer to the display medium layer is after forming the glue layer around the display medium layer, and the display medium layer and the glue layer are completely covered between the driving substrate and the protective layer.
Based on the above, in the design of the display device of the present invention, the protective layer covers the display medium layer and the glue layer, wherein the protective layer bends along the glue layer toward the driving substrate, that is, the protective layer bends toward the driving substrate to protect the lateral direction of the display medium layer in addition to the upper side of the display medium layer. Therefore, the display medium layer is protected by the protective layer above and laterally, and the water and gas blocking effect of the display medium layer in the lateral direction is improved, so that the display medium layer is prevented from being damaged due to lateral water and gas. Therefore, the display device of the invention can have better structural reliability.
Drawings
FIG. 1 is a schematic diagram of a display device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a display device according to another embodiment of the invention;
FIG. 3 is a schematic diagram of a display device according to another embodiment of the invention;
FIG. 4 is a schematic diagram of a display device according to another embodiment of the invention;
FIG. 5 is a schematic diagram of a display device according to another embodiment of the invention;
fig. 6 is a schematic diagram of a display device according to another embodiment of the invention.
Description of the reference numerals
100a, 100b, 100c, 100d, 100e, 100 f;
110, driving a substrate;
112, side edges;
120, displaying a medium layer;
130a, 130b, 130c, 130d, 130e, 130 f;
132c, 132d, 132e, 132 f;
140a, 140b, 140c, 140d, 140e, 140 f;
142b, 142c, 142d, 142e, 142 f;
150, an adhesive layer;
152 a third side edge;
the back surface;
the extending direction;
h1 and H1' are thicknesses;
h2 and H2': distance;
s, surface.
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Embodiments of the invention may be understood in conjunction with the accompanying drawings, which are also considered a part of the disclosure. It should be understood that the drawings of the present invention are not drawn to scale and that virtually any enlargement or reduction of the size of the elements is possible in order to clearly demonstrate the features of the present invention.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the invention. Referring to fig. 1, in the present embodiment, a display device 100a includes a driving substrate 110, a display medium layer 120, a glue layer 130a, and a passivation layer 140a. The display medium layer 120 is disposed on the driving substrate 110. The glue layer 130a is disposed around the display medium layer 120. The protective layer 140a covers the display medium layer 120 and the adhesive layer 130a, wherein the protective layer 140a is bent along the adhesive layer 130a toward the driving substrate 110.
In detail, in the present embodiment, the driving substrate 110 has a surface S, wherein the driving substrate 110 is, for example, an active device array substrate, such as a Thin Film transistor (Thin Film Transistor, TFT) array substrate or a Thin Film Diode (TFD) array substrate, but not limited thereto. The display medium layer 120 is disposed on the surface S of the driving substrate 110, wherein the display medium layer 120 is, for example, an electrophoretic display film or an electrowetting display film, but not limited thereto. The glue layer 130a is disposed around the display medium layer 120 and fills the gap between the passivation layer 140a and the driving substrate 110, wherein the Water Vapor Transmission Rate (WVTR) of the glue layer 130a is less than 30g/m 2 day, and the adhesive layer 130a is, for example, epoxy, polymethyl methacrylate (PMMA), or silica gel, but not limited thereto. The protective layer 140a is bent downward toward the driving substrate 110 onto the surface S of the driving substrate 110 to shield the lateral direction of the display medium layer 120. At this time, the display medium layer 120 and the adhesive layer 130a are completely covered between the driving substrate 110 and the protective layer 140a. Preferably, the material of the protection layer 140a is, for example, a light-transmitting material such as polymethyl methacrylate (PMMA) or glass, or a soft material such as Polystyrene (PS), but not limited thereto, wherein the light transmittance of the protection layer 140a is greater than 80%. Here, the moisture transmittance of the passivation layer 140a is, for example, less than 1g/m 2 The day, that is, the water blocking effect of the protective layer 140a is better than that of the adhesive layer 130a.
Since the protection layer 140a above the display medium layer 120 is extended in this embodiment, the protection layer 140a may have a bending/curving feature in the lateral direction of the display medium layer 120 to protect the lateral direction of the display medium layer 120, thereby blocking lateral moisture and improving the lateral water blocking effect. In addition, between the curved protective layer 140a and the driving substrate 110, the remaining space except the display medium layer 120 is filled with a glue layer 130a for moisture blocking.
In the fabrication of the display device 100a of the present embodiment, referring to fig. 1 again, first, a driving substrate 110 is provided. Next, the display medium layer 120 is disposed on the driving substrate 110. Then, the glue layer 130a is formed around the display medium layer 120, and a curing process is performed on the glue layer 130a, wherein the glue layer 130a is formed on the surface S of the driving substrate 110 in a dispensing manner, and the glue layer 130a is cured in a UV curing or thermal curing manner. Finally, before the adhesive layer 130a is not completely cured, the protective layer 140a is attached to the display medium layer 120 and the adhesive layer 130a, and the protective layer 140a is bent along the adhesive layer 130a toward the driving substrate 110, so that the display medium layer 120 and the adhesive layer 130a are completely wrapped between the driving substrate 110 and the protective layer 140a. Thus, the fabrication of the display device 100a is completed.
In short, since the passivation layer 140a of the present embodiment covers the display medium layer 120 and the glue layer 130a, the passivation layer 140a bends along the glue layer 130a toward the driving substrate 110, i.e. the passivation layer 140a bends downward toward the driving substrate 110 to protect the lateral direction of the display medium layer 120 in addition to protecting the top of the display medium layer 120. Therefore, the display medium layer 120 is protected by the protection layer 140a above and laterally, and the moisture blocking effect of the display medium layer 120 in the lateral direction is improved, so as to prevent the display medium layer 120 from being damaged due to lateral moisture. Therefore, the display device 100a of the present embodiment may have better structural reliability.
It should be noted that the following embodiments use the element numbers and part of the content of the foregoing embodiments, where the same numbers are used to denote the same or similar elements, and descriptions of the same technical content are omitted. For the description of the omitted parts, reference is made to the foregoing embodiments, and the following embodiments are not repeated.
Fig. 2 is a schematic diagram of a display device according to another embodiment of the invention. Referring to fig. 1 and 2, the display device 100b of the present embodiment is similar to the display device 100a of fig. 1, and the difference between them is that: in the present embodiment, the protection layer 140b is folded onto the surface S of the driving substrate 110, and covers a portion of the surface S along the extending direction D of the driving substrate 110. At this time, the display medium layer 120 and the adhesive layer 130b are completely covered between the driving substrate 110 and the protective layer 140 b. Here, the first side edge 142b of the protection layer 140b is aligned with the side edge 112 of the driving substrate 110.
Fig. 3 is a schematic view of a display device according to another embodiment of the invention. Referring to fig. 1 and 3, the display device 100c of the present embodiment is similar to the display device 100a of fig. 1, and the difference is that: in the present embodiment, the first side edge 142c of the protective layer 140c, the second side edge 132c of the adhesive layer 130c, and the side edge 112 of the driving substrate 110 are aligned. Preferably, the thickness of the display medium layer 130c is H1, and the distance between the side edge 112 of the driving substrate 110 and the passivation layer 140c is H2, and H2 is less than 1/2×H1. When the material of the protective layer 140c is Polystyrene (PS), the display device 100c may have a narrow frame (slimbrnder) characteristic.
In the manufacturing of the display device 100c, please refer to fig. 1 and 3, the manufacturing method of the display device 100c of the present embodiment is similar to the manufacturing method of the display device 100a, and the difference is that: in this embodiment, the protective layer 140c is attached to the display medium layer 120 before the adhesive layer 130c is formed around the display medium layer 120. That is, in this embodiment, the protective layer 140c is attached first, and then the adhesive layer 130c is formed, wherein the adhesive layer 130c covering the side edge 112 of the driving substrate 110 is formed on the back surface B of the driving substrate 110 by dispensing, and the adhesive layer 130c is cured by UV curing or thermal curing. Then, the manufacturing method of the display device 100c of the present embodiment further includes performing a dicing procedure to dice the protective layer 140c and the glue layer 130c, so that the first side edge 142c of the protective layer 140c, the second side edge 132c of the glue layer 130c, and the side edge 112 of the driving substrate 110 are aligned. Thus, the fabrication of the display device 100c is completed.
Fig. 4 is a schematic view of a display device according to another embodiment of the invention. Referring to fig. 3 and fig. 4, the display device 100d of the present embodiment is similar to the display device 100c of fig. 3, and the difference between them is that: in this embodiment, the display device 100d further includes an adhesive layer 150 disposed between the protective layer 140d and the display medium layer 120 and between the protective layer 140d and the adhesive layer 130d to connect the protective layer 140d and the display medium layer 120. The adhesive layer 150 is, for example, but not limited to, optically clear adhesive (Optically Clear Adhesive, OCA) or pressure sensitive adhesive (pressure sensitive adhesive, PSA). Here, the third side edge 152 of the adhesive layer 150 is aligned with the first side edge 142d of the protective layer 140d, the second side edge 132d of the adhesive layer 130d, and the side edge 112 of the driving substrate 110.
In the manufacturing of the display device 100d, please refer to fig. 3 and fig. 4, the manufacturing method of the display device 100d of the present embodiment is similar to the manufacturing method of the display device 100c, and the difference is that: the method for manufacturing the display device 100d of the present embodiment further includes forming the adhesion layer 150 on the display medium layer 120 before attaching the protection layer 140d on the display medium layer 120. Next, the protective layer 140d is attached to the adhesive layer 150. Then, a glue layer 130d covering the side edge 112 of the driving substrate 110 is formed thereon in a dispensing manner, and the glue layer 130d is cured in a UV curing or thermal curing manner. Finally, a dicing process is performed to dice the protective layer 140d, the adhesive layer 150d and the adhesive layer 130d, so that the third side edge 152 of the adhesive layer 150 is aligned with the first side edge 142d of the protective layer 140d, the second side edge 132d of the adhesive layer 130d and the side edge 112 of the driving substrate 110. Thus, the fabrication of the display device 100d is completed.
Fig. 5 is a schematic view of a display device according to another embodiment of the invention. Referring to fig. 1 and 5, the display device 100e of the present embodiment is similar to the display device 100a of fig. 1, and the difference between them is that: in the present embodiment, the first side edge 142e of the protection layer 140e is aligned with the second side edge 132e of the adhesive layer 130e, and the adhesive layer 130e covers the side edge 112 of the driving substrate 110. Here, the thickness of the display medium layer 120 is H1', and the distance between the side edge 112 of the driving substrate 110 and the passivation layer 140e is H2', where H2 '< 1/2×h1'.
In the manufacturing of the display device 100e, please refer to fig. 1 and 5, the manufacturing method of the display device 100e of the present embodiment is similar to the manufacturing method of the display device 100a, and the difference is that: in this embodiment, the protective layer 140e is attached to the display medium layer 120 before the adhesive layer 130e is formed around the display medium layer 120. That is, in this embodiment, the protective layer 140e is attached first, and then the adhesive layer 130e is formed, wherein the adhesive layer 130e covering the side edge 112 of the driving substrate 110 is formed on the back surface B of the driving substrate 110 by dispensing, and the adhesive layer 130e is cured by UV curing or thermal curing. Then, the manufacturing method of the display device 100e of the present embodiment further includes performing a dicing procedure to dice the protective layer 140e and the adhesive layer 130e, so that the first side edge 142e of the protective layer 140e is aligned with the second side edge 132e of the adhesive layer 130e. Thus, the fabrication of the display device 100e is completed.
Fig. 6 is a schematic diagram of a display device according to another embodiment of the invention. Referring to fig. 5 and 6, the display device 100f of the present embodiment is similar to the display device 100e of fig. 5, and the difference between them is that: in this embodiment, the display device 100f further includes an adhesive layer 150 disposed between the protective layer 140f and the display medium layer 120 and between the protective layer 140f and the adhesive layer 130f to connect the protective layer 140f and the display medium layer 120. The adhesive layer 150 is, for example, an Optically Clear Adhesive (OCA) or a Pressure Sensitive Adhesive (PSA), but not limited thereto. Here, the third side edge 152 of the adhesive layer 150 is aligned with the first side edge 142f of the protective layer 140f and the second side edge 132f of the adhesive layer 130f.
In the manufacturing of the display device 100f, please refer to fig. 5 and 6, the manufacturing method of the display device 100f of the present embodiment is similar to the manufacturing method of the display device 100e, and the difference is that: the method for manufacturing the display device 100f of the present embodiment further includes forming the adhesion layer 150 on the display medium layer 120 before attaching the protection layer 140f on the display medium layer 120. Next, the protective layer 140f is attached to the adhesive layer 150. Then, a glue layer 130f covering the side edge 112 of the driving substrate 110 is formed thereon in a dispensing manner, and the glue layer 130f is cured in a UV curing or thermal curing manner. Finally, a dicing process is performed to dice the protective layer 140f, the adhesive layer 150f and the adhesive layer 130f, such that the third side edge 152 of the adhesive layer 150 is aligned with the first side edge 142f of the protective layer 140f and the second side edge 132f of the adhesive layer 130f. Thus, the fabrication of the display device 100f is completed.
In summary, in the design of the display device of the present invention, the protective layer covers the display medium layer and the glue layer, wherein the protective layer bends along the glue layer toward the driving substrate, that is, the protective layer bends toward the driving substrate to protect the lateral direction of the display medium layer in addition to the upper side of the display medium layer. Therefore, the display medium layer is protected by the protective layer above and laterally, and the water and gas blocking effect of the display medium layer in the lateral direction is improved, so that the display medium layer is prevented from being damaged due to lateral water and gas. Therefore, the display device of the invention can have better structural reliability.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (20)

1. A display device, comprising:
a driving substrate;
a display medium layer disposed on the driving substrate;
a glue layer arranged around the display medium layer; and
and the protective layer covers the display medium layer and the adhesive layer, wherein the protective layer is bent towards the driving substrate along the adhesive layer.
2. The display device of claim 1, wherein the display medium layer and the glue layer are entirely encapsulated between the drive substrate and the protective layer.
3. The display device according to claim 2, wherein the driving substrate has a surface, and the protective layer is folded onto the surface and covers a portion of the surface along an extending direction of the driving substrate.
4. The display device of claim 1, wherein a first side edge of the protective layer, a second side edge of the glue layer, and a side edge of the drive substrate are aligned.
5. The display device according to claim 4, further comprising:
the adhesive layer is arranged between the protective layer and the display medium layer and between the protective layer and the adhesive layer, wherein a third side edge of the adhesive layer is aligned with the first side edge of the protective layer, the second side edge of the adhesive layer and the side edge of the driving substrate.
6. The display device of claim 1, wherein a first side edge of the protective layer is aligned with a second side edge of the glue layer, and the glue layer covers the side edge of the drive substrate.
7. The display device according to claim 6, further comprising:
and the adhesive layer is arranged between the protective layer and the display medium layer and between the protective layer and the adhesive layer, wherein the third side edge of the adhesive layer is aligned with the first side edge of the protective layer and the second side edge of the adhesive layer.
8. The display device according to claim 1, wherein the thickness of the display medium layer is H1, and the distance between the side edge of the driving substrate and the protective layer is H2, and H2 < 1/2×h1.
9. The display device of claim 1, wherein the glue layer has a moisture transmission rate of less than 30g/m 2 day。
10. The display device according to claim 1, wherein the water vapor transmission rate of the protective layer is less than 1g/m 2 day。
11. The display device according to claim 1, wherein the material of the protective layer comprises a light-transmitting material, and wherein the light transmittance of the protective layer is greater than 80%.
12. A method for manufacturing a display device, comprising:
providing a driving substrate;
configuring a display medium layer on the driving substrate;
forming an adhesive layer around the display medium layer; and
attaching a protective layer to the display medium layer; and
and performing a curing procedure on the adhesive layer, wherein the protective layer is bent towards the direction of the driving substrate along the adhesive layer.
13. The method of claim 12, wherein attaching the protective layer to the display medium layer is performed before forming the adhesive layer around the display medium layer, and the adhesive layer covers a side edge of the driving substrate.
14. The method for manufacturing a display device according to claim 13, further comprising:
and performing a cutting procedure to cut the protective layer and the adhesive layer.
15. The method of claim 14, wherein the first side edge of the protective layer, the second side edge of the glue layer, and the side edge of the driving substrate are aligned.
16. The method of claim 14, wherein the first side edge of the protective layer is aligned with the second side edge of the glue layer.
17. The method for manufacturing a display device according to claim 13, further comprising:
forming an adhesive layer on the display medium layer before attaching the protective layer on the display medium layer; and
after forming the adhesive layer around the display medium layer, performing a cutting procedure to cut the protective layer, the adhesive layer and the adhesive layer.
18. The method of claim 17, wherein the third side edge of the adhesive layer is aligned with the first side edge of the protective layer, the second side edge of the adhesive layer, and the side edge of the driving substrate.
19. The method of claim 17, wherein the third side edge of the adhesive layer is aligned with the first side edge of the protective layer and the second side edge of the adhesive layer.
20. The method of claim 12, wherein the attaching the protective layer to the display medium layer is performed after the forming the adhesive layer around the display medium layer, and the display medium layer and the adhesive layer are completely covered between the driving substrate and the protective layer.
CN202210753364.1A 2022-06-29 2022-06-29 Display device and manufacturing method thereof Pending CN117348307A (en)

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