CN108986666B - Display device - Google Patents
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- CN108986666B CN108986666B CN201810911428.XA CN201810911428A CN108986666B CN 108986666 B CN108986666 B CN 108986666B CN 201810911428 A CN201810911428 A CN 201810911428A CN 108986666 B CN108986666 B CN 108986666B
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- 230000009975 flexible effect Effects 0.000 claims abstract description 75
- 239000000758 substrate Substances 0.000 claims abstract description 73
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- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 2
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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
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The display device comprises a first flexible element substrate, a first protective layer, a first adhesive layer and a first non-adhesive material layer. The first flexible element substrate is provided with a display part, a driving element part and a connecting part. The connecting part connects the display part and the driving element part. The first protection layer is arranged on one surface adjacent to the first flexible element substrate. The first adhesion layer is arranged between the first flexible element substrate and the first protective layer. The first non-adhesive material layer is disposed between the connecting portion of the first flexible device substrate and the first adhesive layer. The first non-adhesive material layer of the connecting part of the display device of the invention ensures that the connecting part of the first flexible element substrate and the first adhesive layer are not adhered to each other, so that the connecting part on the first non-adhesive material layer, the first protective layer and the first adhesive layer can respectively and independently conform to the bending stress to generate deformation without mutual influence, thereby improving the product yield and the efficiency of the display device.
Description
Technical Field
The present invention relates to a display device, and more particularly, to a flexible display device.
Background
With the development of display technologies, the application range of display devices is becoming wider. In the current display technology, flexible display devices have excellent characteristics such as high lightness, impact resistance, flexibility, wearability, and portability, and are currently regarded as a new generation of prospective display technology. However, the bent portion of the display device is liable to cause structural failure due to stress caused by deformation.
Disclosure of Invention
According to an embodiment of the present invention, a display device is provided, which includes a first flexible substrate, a first passivation layer, a first adhesive layer, and a first non-adhesive material layer. The first flexible element substrate is provided with a display part, a driving element part and a connecting part. The connecting part connects the display part and the driving element part. The first protection layer is arranged on one side close to the first flexible element substrate. The first adhesion layer is arranged between the first flexible element substrate and the first protective layer. The first non-adhesive material layer is disposed between the connecting portion of the first flexible device substrate and the first adhesive layer.
According to an embodiment of the present invention, the first non-adhesive material layer has a stripe pattern and a mesh pattern.
According to an embodiment of the present invention, the connecting portion of the first flexible substrate has a first side and a second side opposite to each other, and the first non-adhesive material layer extends from the first side to the second side.
According to an embodiment of the present invention, the connection portion of the first flexible device substrate has a first side and a second side opposite to each other, and the first non-adhesive material layer does not extend to the first side and the second side of the connection portion.
According to an embodiment of the present invention, the first protection layer has a concave-convex profile on another surface opposite to the connection portion.
According to an embodiment of the present invention, the method further comprises:
a second flexible element substrate having a display portion, a driving element portion and a connecting portion connecting the display portion and the driving element portion, disposed adjacent to the other surface of the first flexible element substrate opposite to the first protective layer;
a second adhesion layer disposed between the first flexible element substrate and the second flexible element substrate; and
a second non-adhesive material layer disposed between the connecting portion of the second flexible substrate and the second bonding layer.
According to an embodiment of the present invention, the first non-adhesive material layer and the second non-adhesive material layer are disposed corresponding to each other.
According to an embodiment of the present invention, the first non-adhesive material layer and the second non-adhesive material layer are disposed in a staggered manner.
According to an embodiment of the present invention, the method further comprises:
a second protective layer;
a third adhesion layer disposed between the second flexible device substrate and the second passivation layer.
According to an embodiment of the present invention, the first passivation layer has a concave-convex profile on another surface of the connection portion opposite to the first flexible device substrate.
According to an embodiment of the present invention, the first non-adhesive material layer includes powder.
According to an embodiment of the present invention, the first non-adhesive material layer includes fluorine resin, silicone resin, acryl resin, epoxy resin, or a combination thereof.
According to an embodiment of the present invention, the first non-adhesive material layer includes a conductive material, and the conductive material includes a metal, indium tin oxide, indium zinc oxide, aluminum indium oxide, gallium oxide, indium gallium zinc oxide, carbon nanotubes, silver nanotubes, or a combination thereof.
According to an embodiment of the present invention, the first non-adhesive material layer is formed by performing a modification process on the first adhesive layer.
According to an embodiment of the present invention, a second non-adhesive material layer is disposed between the driving element portion and the first adhesive layer of the first flexible element substrate.
According to an embodiment of the present invention, the display device further includes a second non-adhesive material layer, wherein the first flexible device substrate further has a peripheral region surrounding the display portion, and the second non-adhesive material layer is disposed between the peripheral region of the first flexible device substrate and the first adhesive layer.
The invention has the beneficial effects that:
the first non-adhesive material layer of the connecting part of the display device of the invention ensures that the connecting part of the first flexible element substrate and the first adhesive layer are not adhered to each other, so that the connecting part on the first non-adhesive material layer, the first protective layer and the first adhesive layer can respectively and independently conform to the bending stress to generate deformation without mutual influence, and particularly, the first flexible element substrate can not damage a circuit structure because of the dragging of the deformation stress generated by the bending of the first protective layer and the first adhesive layer, thereby improving the product yield and the efficiency of the display device.
Drawings
Fig. 1 is a schematic cross-sectional view illustrating a display device in a flattened state according to an embodiment.
FIG. 2 is a top view of the display device of FIG. 1 in a flattened state.
Fig. 3 is a cross-sectional view of the display device of fig. 1 in a bent state.
Fig. 4 illustrates a method of manufacturing the display device of fig. 1.
FIG. 5 is a cross-sectional view of a display device in a flattened state according to an embodiment.
FIG. 6A is a schematic cross-sectional view illustrating a display device in a flattened state according to an embodiment.
FIG. 6B is a top view of the first adhesive layer and the first non-adhesive material layer of the connecting portion of the display device of FIG. 6A.
FIG. 7 is a top view of a first adhesive layer and a first non-adhesive material layer of a connecting portion of a display device according to an embodiment.
FIG. 8 is a top view of a first adhesive layer and a first non-adhesive material layer of a connecting portion of a display device according to an embodiment.
FIG. 9 is a top view of a first adhesive layer and a first non-adhesive material layer of a connecting portion of a display device according to an embodiment.
FIG. 10 is a top view of a first adhesive layer and a first non-adhesive material layer of a connecting portion of a display device according to an embodiment.
FIG. 11 is a top view of a first adhesive layer and a first non-adhesive material layer of a connecting portion of a display device according to an embodiment.
FIG. 12 is a cross-sectional view of a display device in a flattened state according to an embodiment.
FIG. 13 is a cross-sectional view of a display device in a flattened state according to an embodiment.
FIG. 14 is a cross-sectional view of a display device in a flattened state according to an embodiment.
FIG. 15 is a cross-sectional view of a display device in a flattened state according to an embodiment.
FIG. 16 is a top view of the display device of FIG. 15 in a flattened state.
Wherein, the reference numbers:
102. 202, 302, 402, 502, 602, 702, 802, 902, 1002, 1402, 1502: display device
108: a first non-adhesive material layer
110. 1510: the first flexible element substrate
102A: the first part
102B: connecting part
102C: the second part
104: first protective layer
106: a first adhesive layer
1510D: peripheral zone
110A, 160A: display unit
110B, 160B: connecting part
110C, 160C: driving element part
117: release film
156: second adhesive layer
158. 1408, 1508: a second non-adhesive material layer
160: the second flexible element substrate
166: the third adhesive layer
174: second protective layer
D1: a first direction
D2: second direction
D3: third direction
S1: first side
S2: second side
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, without departing from the spirit or scope of the present invention.
Exemplary embodiments are described herein with reference to cross-sectional views that are schematic illustrations of idealized embodiments. Thus, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat may generally have rough and/or nonlinear features. Further, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims.
Some examples are described below. It should be noted that the present invention is not intended to show all possible embodiments, and other embodiments not suggested by the present invention may also be applicable. Moreover, the dimensional ratios in the drawings are not to scale with actual products. Accordingly, the description and drawings are only for the purpose of illustrating embodiments and are not to be construed as limiting the scope of the invention. In addition, the descriptions of embodiments, such as details, processing steps, and materials, are provided for illustrative purposes only and are not intended to limit the scope of the present disclosure. The details of the steps and structures of the embodiments may be varied and modified as required by the actual implementation of the process without departing from the spirit and scope of the invention. The following description will be given with the same/similar reference numerals as used for the same/similar elements.
Referring to fig. 1, a cross-sectional view of a display device 102 in a flattened state according to an embodiment is shown. The display device 102 includes a first passivation layer 104, a first adhesive layer 106, a first non-adhesive material layer 108 and a first flexible substrate 110 disposed along a first direction D1. The first adhesive layer 106 is adhered between the first passivation layer 104 and the first flexible device substrate 110. The first flexible device substrate 110 includes a display portion 110A, a connecting portion 110B and a driving device portion 110C arranged along the second direction D2. The first direction D1 and the second direction D2 are different, such as substantially perpendicular to each other. The connection portion 110B connects the display portion 110A and the driving element portion 110C. The first non-adhesive material layer 108 is disposed between the connecting portion 110B of the first flexible device substrate 110 and the first adhesive layer 106. The display device 102 includes a first portion 102A, a connecting portion 102B, and a second portion 102C arranged along the second direction D2. The first portion 102A and the second portion 102C of the display device 102 correspond to the display portion 110A and the driving element portion 110C of the first flexible element substrate 110, respectively. The connecting portion 102B of the display device 102 corresponds to the connecting portion 110B of the first flexible element substrate 110, and connects the first portion 102A and the second portion 102C.
The first protective layer 104 may include, but is not limited to, Polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), hydrocarbon polymers (COP), and the like.
The first adhesive layer 106 may include an adhesive material having an adhesive property, such as an aqueous adhesive (OCR), an Optical adhesive (OCA), a Pressure-sensitive adhesive (PSA), a polyvinyl alcohol (PVA), and the like.
The first flexible device substrate 110 may include a base material, such as but not limited to PI, PET, PEN, COP, etc. The first flexible device substrate 110 may also include circuitry formed on the substrate.
The material of the first non-adhesive material layer 108 may include a conductive material or a non-conductive material. The conductive material may include, for example, metal, Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), Aluminum Zinc Oxide (AZO), Aluminum Indium Oxide (AIO), indium oxide (InO), gallium oxide (GaO), Indium Gallium Zinc Oxide (IGZO), carbon nanotubes, silver nanotubes, or a combination thereof, which can be controlled to have a static dissipative impedance to dissipate static electricity. The material of the first non-adhesive material layer 108 may also include organic or inorganic materials. Inorganic materials may include carbon (e.g., carbon powder), talc, metal oxides (e.g., ITO), and the like. The organic material may include a fluororesin, a silicone resin, an acryl resin, an Epoxy (Epoxy) resin, or a combination thereof. The first non-adhesive material layer 108 may comprise a fluorine material.
Referring to fig. 2, a top view of the display device 102 of fig. 1 in a flattened state is shown, wherein the first flexible device substrate 110 is shown in a perspective view to show the first non-adhesive material layer 108 and the first adhesive layer 106 thereunder. Fig. 1 is drawn along section line AB in fig. 2. As shown in fig. 2, the connecting portion 102B of the display device 102 (or the connecting portion 110B of the first flexible substrate 110) has a first side S1 and a second side S2 opposite to each other. The first non-adhesive material layer 108 extends from the first side S1 to the second side S2, for example, along the third direction D3, and is distributed over the connecting portion 102B. However, without being limited thereto, in other embodiments, the first non-adhesive material layer 108 may be disposed only on a portion of the connection portion 102B, which will be described later.
Referring to fig. 3, a cross-sectional view of the display device 102 of fig. 1 in a bent state is shown. The display device 102 has a flexible property, and the first protective layers 104 of the first portion 102A and the second portion 102C can face each other by bending the connecting portion 102B, so that the element circuits of the display portion 110A and the driving element portion 110C of the first flexible element substrate 110 can overlap each other when viewed from the first direction D1, and thus, the frame of the display device can be narrower, even without frame. The first non-adhesive material layer 108 of the connecting portion 102B makes the connecting portion 110B of the first flexible device substrate 110 and the first adhesive layer 106 not adhere to each other, so that the connecting portion 110B on the first non-adhesive material layer 108, the first protection layer 104 and the first adhesive layer 106 can respectively and independently conform to the bending stress to generate deformation without mutual influence, and particularly, the first flexible device substrate 110 cannot damage the circuit structure due to the deformation stress generated by bending the first protection layer 104 and the first adhesive layer 106, so that the product yield and the performance of the display device can be improved.
Referring to fig. 4, a method for manufacturing the display device 102 of fig. 1 is shown. The first adhesion layer 106 is disposed on the first protection layer 104. The release film 117 is disposed on the first adhesive layer 106. A portion of the release film 117 is removed to form an opening 120. A first non-adhesive material layer 108 is formed on the first adhesive layer 106 exposed by the opening 120. Then, the release film 117 is removed, and the first flexible device substrate 110 is disposed on the first adhesive layer 106 and the first non-adhesive material layer 108, so as to form the display device 102 shown in fig. 1.
In one embodiment, the opening 120 of the release film 117 shown in fig. 4 is formed by performing a local laser process on the release film 117, wherein the laser-processed portion of the release film 117 may be ashed or carbonized into powder (e.g., carbon powder) and directly remains and adheres to the first adhesion layer 106 to form the first non-adhesive material layer 108. The laser process may be performed in a normal pressure environment. In another embodiment, the first non-adhesive material layer 108 may be formed by spraying, coating or plating an inorganic material, such as a powder material (e.g., carbon powder, talc powder, etc.) or a metal oxide (e.g., ITO, etc.) on the first adhesive layer 106 exposed by the opening 120, and may be adhered to the first adhesive layer 106. The excess powder can also be removed. In yet another embodiment, the first non-adhesive material layer 108 may be formed by spraying, coating, etc. an organic material, such as fluorine resin, silicone resin, acryl resin, epoxy resin, etc., on the first adhesive layer 106 exposed by the opening 120. The resin may include a curable composition and may be cured, for example, by irradiation with light or heat. In yet another embodiment, the first non-adhesive material layer 108 can be formed by modifying the first adhesive layer 106 exposed by the opening 120 to lose its adhesive property. The method for forming the first non-adhesive material layer 108 can be selected arbitrarily, and for example, the above-mentioned methods can be combined and applied appropriately.
Referring to fig. 5, a cross-sectional view of the display device 202 in a flattened state according to an embodiment is shown, which is different from the display device 102 in fig. 1 in that the first protection layer 204 of the connection portion 102B has a concave-convex profile on the other surface opposite to the first adhesion layer 106. The concave-convex profile may be formed by micromachining a surface of the first protection layer 204. The voids caused by the concave-convex profile make the connection portion 102B easier to bend, and can reduce the stress generated by the deformation of the first passivation layer 204 and pulling other elements. The concave-convex profile on the surface of the first protection layer 204 is not limited to the depth of the recess and the design of the first adhesion layer 106 as shown in fig. 5 (i.e. the depth of the recess of the concave-convex profile is the entire thickness of the first protection layer 204). In other embodiments, the recess depth of the concave-convex profile may not reach the first passivation layer 106 (i.e., the recess depth of the concave-convex profile may be a partial thickness of the first passivation layer 204). The surface of the first passivation layer 204 may have a plurality of different concave-convex profiles, for example, a portion of the concave-convex profiles may have a concave depth corresponding to the entire thickness of the first passivation layer 204, and another portion of the concave-convex profiles may have a concave depth corresponding to a portion of the thickness of the first passivation layer 204, and the concave depths may be the same or different.
Please refer to fig. 6A and fig. 6B. FIG. 6A is a cross-sectional view of the display device 302 in a flattened state according to an embodiment. FIG. 6B shows a top view of the connection portion 102B of the display device 302 with the first bonding layer 106 and the first non-adhesive material layer 108. The difference between the display device 302 and the display device 102 shown in fig. 1 and 2 is that the first non-adhesive material layer 108 has strip patterns spaced apart from each other in the second direction D2, and each of the strip patterns extends along the third direction D3 and continuously extends from the first side S1 to the second side S2 of the connecting portion 302B, so that the portion corresponding to the strip pattern can be connected to the atmosphere. The third direction D3 is different from the first direction D1 and the second direction D2, for example, the third direction D3 is substantially perpendicular to the first direction D1 and the second direction D2.
Referring to fig. 7, a top view of the first bonding layer 106 and the first non-adhesive material layer 108 of the connecting portion 102B of the display device 402 according to an embodiment is shown, which is different from the display device 302 shown in fig. 6 in that the stripe patterns of the first non-adhesive material layer 108 are not only spaced apart from each other in the second direction D2, but also spaced apart from each other in the third direction D3 and are staggered. A portion of the stripe pattern may extend to one of the first side S1 and the second side S2 of the connection portion 102B. The remaining bar patterns do not extend to the first side S1 and the second side S2 of the connection portion 102B.
Referring to fig. 8, a top view of the first bonding layer 106 and the first non-adhesive material layer 108 of the connection portion 102B of the display device 502 according to an embodiment is shown. In this example, the first non-adhesive material layer 108 has a hexagonal pattern with staggered intervals.
Referring to fig. 9, a top view of the first bonding layer 106 and the first non-adhesive material layer 108 of the connection portion 102B of the display device 602 according to an embodiment is shown, which is different from the display device 302 shown in fig. 6 in that the stripe pattern of the first non-adhesive material layer 108 extending along the third direction D3 does not reach the first side S1 and the second side S2 of the connection portion 102B.
Referring to fig. 10, a top view of the first bonding layer 106 and the first non-adhesive material layer 108 of the connection portion 102B of the display device 702 according to an embodiment is shown, which is different from the display device 302 shown in fig. 6 in that the stripe pattern of the first non-adhesive material layer 108 has a smaller width at the end portions close to the first side S1 and the second side S2 of the connection portion 102B, and the remaining middle portion has a larger width.
Referring to fig. 11, a top view of the first adhesive layer 106 and the first non-adhesive material layer 108 of the connection portion 102B of the display device 802 according to an embodiment is shown. The first non-adhesive material layer 108 has a mesh pattern, and the first non-adhesive material layer 108 does not extend to the first side S1 and the second side S2 of the connecting portion 102B.
In other embodiments, the first non-adhesive material layer 108 may have other shapes and configurations. For example, the first non-adhesive material layer 108 may have a pie pattern, other geometric shapes, irregular shapes, or the like. In one embodiment, the first non-adhesive material layer 108 occupies at least 10% of the area of the connecting portion 102B when viewed from the above.
Referring to fig. 12, a cross-sectional view of a display device 902 according to an embodiment in a flattened state is shown. The differences between the display device 902 and the display device 102 shown in FIG. 1 are described below. The display device 902 further includes a second adhesive layer 156, a second non-adhesive material layer 158, a second flexible device substrate 160, a third adhesive layer 166 and a second passivation layer 174 disposed on the first flexible device substrate 110 along the first direction D. The second flexible device substrate 160 has a display portion 160A, a connecting portion 160B, and a driving device portion 160C. The connection portion 160B connects the display portion 160A and the driving element portion 160C. The second adhesive layer 156 is adhered between the first flexible device substrate 110 and the second flexible device substrate 160. The second non-adhesive material layer 158 is disposed between the connecting portion 160B of the second flexible substrate 160 and the second adhesive layer 156. The third adhesive layer 166 is adhered between the second flexible device substrate 160 and the second passivation layer 174. In this embodiment, the patterns of the first non-adhesive material layer 108 and the second non-adhesive material layer 158 are arranged in a staggered manner, for example, the projections onto the second passivation layer 174 in the first direction D1 are staggered. The first protection layer 104 of the connection portion 102B has a concave-convex profile on a surface opposite to the first adhesion layer 106. In one embodiment, the first flexible device substrate 110 has a circuit of a display panel, and the second flexible device substrate 160 has a touch circuit. In one embodiment, the first flexible device substrate 110 is, for example, a display panel, a touch display panel, a protective cover plate or a protective functional film. In another embodiment, the second flexible device substrate 160 is, for example, a display Panel, a Touch Panel, a protective cover, a protective functional film, or a Touch display Panel, such as an integrated Touch display Panel (In Cell Touch Panel) or an embedded Touch display Panel (On-Cell) and then a functional protective film is attached thereto.
Referring to fig. 13, a cross-sectional view of a display device 1002 according to an embodiment in a flattened state is shown. Differences between the display device 1002 and the display device 902 of fig. 12 are described below. The patterns of the first non-adhesive material layer 108 and the second non-adhesive material layer 158 of the connecting portion 102B are disposed corresponding to each other, for example, the projections onto the second passivation layer 174 in the first direction D1 are substantially overlapped with each other. The concave-convex profile on the surface of the first passivation layer 204 may correspond to the pattern configuration of the first non-adhesive material layer 108 and the second non-adhesive material layer 158.
Referring to fig. 14, a cross-sectional view of the display device 1402 in the flattened state according to an embodiment is shown. The differences between the display device 1402 and the display device 102 shown in fig. 1 are explained as follows. The display device 1402 further includes a second non-adhesive material layer 1408. The second non-adhesive material layer 1408 is disposed between the driving element portion 110C of the first flexible device substrate 110 and the first adhesive layer 106.
Referring to fig. 15 and 16, a cross-sectional view and a top view of a display device 1502 in a flattened state according to an embodiment are respectively shown. The first flexible device substrate 1510 of fig. 16 is shown in perspective to show the underlying first adhesive layer 106, the first non-adhesive material layer 108, and the second non-adhesive material layer 1508. Fig. 15 is drawn along section line CD in fig. 16. The differences between the display device 1502 and the display device 102 shown in FIG. 1 are described below. The first flexible device substrate 1510 of the display device 1502 further has a peripheral region 1510D. The peripheral region 1510D surrounds the display portion 110A. In another embodiment, the peripheral region 1510D may be a portion of the display portion 110A. Display device 1502 further includes a second layer 1508 of non-adhesive material. The second non-adhesive material layer 1508 is disposed in a ring shape between the peripheral region 1510D of the first flexible device substrate 1510 and the first bonding layer 106. It should be noted that, in this embodiment, the second non-adhesive material layer 1508 is disposed in a ring shape between the peripheral region 1510D of the first flexible device substrate 1510 and the first bonding layer 106, but not limited thereto, the second non-adhesive material layer 1508 may also be disposed in a segment of the peripheral region 1510D.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A display device, comprising:
a first flexible element substrate having a display portion, a driving element portion and a connecting portion, wherein the connecting portion connects the display portion and the driving element portion;
a first protective layer disposed on one side of the first flexible element substrate;
a first adhesion layer disposed between the first flexible substrate and the first passivation layer; and
a first non-adhesive material layer disposed between the connection portion of the first flexible device substrate and the first bonding layer; the first non-adhesive material layer makes the connecting part of the first flexible element substrate corresponding to the position where the first non-adhesive material layer is arranged and the first bonding layer not be adhered to each other; the connecting portion of the first flexible element substrate has a first side and a second side opposite to each other, and the first non-adhesive material layer does not extend to the first side and the second side of the connecting portion; wherein the first side and the second side extend along the connection direction of the display part, the driving element part and the connecting part;
when the display device is bent at the connecting part, the first protective layer corresponding to the display part and the first protective layer corresponding to the driving element part face each other;
wherein the first non-adhesive material layer comprises a conductive material or a non-conductive material, the conductive material comprises metal, indium tin oxide, indium zinc oxide, aluminum indium oxide, gallium oxide, indium gallium zinc oxide, carbon nanotubes, nanosilver, or a combination thereof; or the first non-adhesive material layer comprises an organic or inorganic material, the inorganic material comprises carbon, talcum powder, metal oxide, or the combination of the above, and the organic material comprises fluorine resin, silicon resin, acrylic resin, epoxy resin, or the combination of the above; or the first non-stick material layer comprises a fluorine-containing material;
wherein the first protective layer has a concave-convex profile on the other surface opposite to the connection part, and the first protective layer comprises polyimide, polyethylene terephthalate, polyethylene naphthalate, and hydrocarbon polymer.
2. The display device of claim 1, wherein the first non-adhesive material layer has a stripe pattern or a mesh pattern.
3. The display device of claim 1, further comprising:
a second flexible element substrate having a display portion, a driving element portion and a connecting portion connecting the display portion and the driving element portion, disposed adjacent to the other surface of the first flexible element substrate opposite to the first protective layer;
a second adhesion layer disposed between the first flexible element substrate and the second flexible element substrate; and
a second non-adhesive material layer disposed between the connecting portion of the second flexible substrate and the second bonding layer.
4. The display device according to claim 3, wherein the first non-adhesive material layer and the second non-adhesive material layer are disposed corresponding to each other.
5. The display device according to claim 3, wherein the first non-adhesive material layer and the second non-adhesive material layer are disposed in a staggered manner.
6. The display device of claim 3, further comprising:
a second protective layer;
a third adhesion layer disposed between the second flexible device substrate and the second passivation layer.
7. The display device of claim 1, further comprising a second non-adhesive material layer disposed between the driving element portion of the first flexible element substrate and the first adhesive layer.
8. The display device of claim 1, further comprising a second non-adhesive material layer, wherein the first flexible device substrate further comprises a peripheral region surrounding the display portion, the second non-adhesive material layer being disposed between the peripheral region of the first flexible device substrate and the first adhesive layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107118970A TWI678801B (en) | 2018-06-01 | 2018-06-01 | Display device |
| TW107118970 | 2018-06-01 |
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| CN108986666A CN108986666A (en) | 2018-12-11 |
| CN108986666B true CN108986666B (en) | 2021-12-31 |
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| CN109712536A (en) * | 2019-02-28 | 2019-05-03 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel and display device |
| CN110295016A (en) * | 2019-07-03 | 2019-10-01 | 业成科技（成都）有限公司 | Protective film and panel assembly |
| CN110716335A (en) * | 2019-09-27 | 2020-01-21 | 武汉华星光电半导体显示技术有限公司 | Display device and method for manufacturing the same |
| CN110865495B (en) * | 2019-11-29 | 2022-06-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and preparation method thereof |
| CN111679476B (en) * | 2020-06-28 | 2022-05-27 | 武汉华星光电技术有限公司 | Laminating film and display device |
| TWI763463B (en) * | 2021-04-27 | 2022-05-01 | 友達光電股份有限公司 | Display device |
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Also Published As
| Publication number | Publication date |
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| CN108986666A (en) | 2018-12-11 |
| TW202005078A (en) | 2020-01-16 |
| TWI678801B (en) | 2019-12-01 |
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