CN112590320B - Composite material structure and OLED panel with same - Google Patents
Composite material structure and OLED panel with same Download PDFInfo
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- CN112590320B CN112590320B CN202011448351.0A CN202011448351A CN112590320B CN 112590320 B CN112590320 B CN 112590320B CN 202011448351 A CN202011448351 A CN 202011448351A CN 112590320 B CN112590320 B CN 112590320B
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- layer
- composite
- graphite layer
- graphite
- composite material
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- 239000002131 composite material Substances 0.000 title claims abstract description 72
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 56
- 239000010439 graphite Substances 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 53
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 18
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/206—Organic displays, e.g. OLED
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a composite material structure and an OLED panel with the same. The composite structure comprises: a composite body; a graphite layer provided on the composite material body, wherein a peripheral edge of the graphite layer is retracted with respect to a peripheral edge of the composite material body to form a retracted region surrounding the graphite layer, and the graphite layer is provided with a plurality of openings penetrating through the graphite layer in a thickness direction of the graphite layer; and the filling material layer is arranged on the composite material body, covers the retraction area and fills the plurality of open holes. Therefore, the problem that visible impressions exist in a module state when the composite material structure is subjected to pressure due to attachment can be prevented.
Description
Technical Field
The present invention relates generally to the field of display technology, and more particularly, to a composite structure and an OLED panel having the same.
Background
At present, the development of the OLED (Organic Light Emitting Diode) display technology is rapidly advanced, and the OLED product has the advantages of lightness, thinness, fast response, wide viewing angle, high contrast, flexibility and the like, so that the OLED product receives more and more attention and applications, and is mainly applied to the display fields of mobile phones, flat panels, televisions and the like.
OLED products typically require the attachment of composite structures (e.g., comprising foam, PI, graphite, copper foil) on the back to protect the display panel. As shown in fig. 1, when the composite material structure 100 includes the graphite layer 103, due to the characteristic of easy delamination of graphite, edge invagination and surface punching designs are required to facilitate better attachment and prevent delamination.
However, edge undercutting and surface-piercing designs can produce discontinuities in the surface of the composite structure that are observed in the modular state.
Disclosure of Invention
In view of the above, the present invention provides a composite structure and an OLED panel having the same, which can prevent the visible impression problem in a module state when the composite structure is subjected to pressure due to attachment.
One aspect of the invention provides a composite structure comprising:
a composite body;
a graphite layer provided on the composite material body, wherein a peripheral edge of the graphite layer is retracted with respect to a peripheral edge of the composite material body to form a retracted region surrounding the graphite layer, and the graphite layer is provided with a plurality of openings penetrating the graphite layer in a thickness direction of the graphite layer; and
and the filling material layer is arranged on the composite material body, covers the retraction area and fills the plurality of open holes.
In a preferred embodiment, the filling material layer and the graphite layer are arranged on the same layer, and the surface of the filling material layer is flush with the surface of the graphite layer.
In a preferred embodiment, the filling material layer is disposed on the composite material body and the graphite layer, and the filling material layer covers the retracted region and fills the plurality of openings.
In a preferred embodiment, the thickness of the filling material layer is greater than that of the graphite layer, and the surface of the filling material layer on the side away from the composite material body is a flat surface.
In a preferred embodiment, the outer boundary of the filler material layer coincides with the outer boundary of the composite body.
In a preferred embodiment, the outer boundary of the graphite layer is at least one of zigzag and wave-shaped.
In a preferred embodiment, the part of the filling material layer corresponding to the retraction region is complementary to the graphite layer at the interface.
In a preferred embodiment, the material of the filling material layer is a thermoplastic polyester material.
In a preferred embodiment, the material of the filling material layer is a hot melt adhesive material.
Another aspect of the present invention provides an OLED panel having the above composite structure.
According to the composite material structure and the OLED panel with the composite material structure, the inward shrinkage region and the plurality of openings of the graphite layer are filled in a filling material layer filling mode, so that the problem that visible impressions exist in a module state when the composite material structure is subjected to pressure due to attachment can be solved.
Drawings
Other objects, features and advantages of the present invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which it is noted that the drawings are not necessarily to scale and that, for purposes of clarity of illustration, some features may be exaggerated or minimized in the drawings, in which:
FIG. 1 is an elevation view of a prior art composite structure;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an elevation view of a composite structure according to an embodiment of the present invention;
FIG. 4 is a sectional view taken along line B-B in FIG. 3;
FIG. 5 is an elevation view of a composite structure according to another embodiment of the present invention; and
FIG. 6 is an elevation view of a composite structure according to yet another embodiment of the invention.
The reference numerals appearing in the figures relate to the following technical features:
100. composite material structure
101. Composite body
103. Graphite layer
105. Retracted zone
107. Opening holes
109. And filling the material layer.
Detailed Description
In the following description, references to "an embodiment" or "an embodiment" are intended to indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, phrases such as "an embodiment" or "an embodiment" that may be present in various places throughout this specification are not necessarily referring to the same embodiment, but may instead refer to different embodiments. Furthermore, the particular configurations, structures, or characteristics defined in this specification may be combined in any suitable manner other than those presented. Reference numerals and spatial references (such as "upper", "lower", etc.) are used herein for convenience only and thus do not limit the scope of protection or the scope of the embodiments.
It will be understood that when an element, layer, region or component is referred to as being "on," "connected to" or "coupled to" another element, layer, region or component, it can be directly on, connected or coupled to the other element, layer, region or component, or one or more intervening elements, layers, regions or components may be present. However, "directly connected/directly coupled" means that one element is directly connected or coupled to another element without intervening elements. Meanwhile, other expressions such as "between 8230; \8230between", "directly between 8230; \8230;" or "with 8230; \8230; adjacent" and "directly with 8230; \8230; adjacent" describing the relationship between components can be similarly explained. In addition, it will also be understood that when an element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is an elevation view ofbase:Sub>A prior art composite structure 10, and fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
As shown in fig. 1-2, a composite structure 10 is used to attach to the back of an OLED panel to protect the display panel. The composite structure 100 generally includes a composite body 101 and a graphite layer 103. Because the graphite is easy to delaminate, the edge retraction and surface punching design is needed, so that the graphite can be attached better and delamination can be prevented. The peripheral edge of the graphite layer 103 is retracted relative to the peripheral edge of the composite body 101 to form a retracted region 105 surrounding the graphite layer 103, and the graphite layer 103 is provided with a plurality of openings 107 penetrating the graphite layer 103 in the thickness direction of the graphite layer 103.
It should be noted that although in fig. 1-2 and subsequent figures, the composite body 101 and graphite layers 103 are shown in rectangular shapes, it should be appreciated that the composite body 101 and graphite layers 103 may be other shapes such as diamond, oval, or with rounded corners or chamfers, etc. In addition, although 18 openings 107 are shown uniformly disposed on the graphite layer 103 in fig. 1-2 and subsequent figures, it should be appreciated that more or fewer openings 107 may be disposed on the graphite layer 103 and that the openings 107 may be disposed in other suitable manners.
As shown in fig. 2, in the prior art composite structure, both the indented region 105 and the plurality of openings 107 cause discontinuities to form between the composite body 101 and the graphite layer 103, which are easily observable in the as-molded state.
Referring now to fig. 3-4, fig. 3 is an elevation view of a composite structure 100 according to an embodiment of the present invention, and fig. 4 is a cross-sectional view taken along line B-B of fig. 3.
As shown in fig. 3-4, in contrast to the prior art, the composite structure 100 of the present invention includes a layer of filler material 109. The filler material layer 109 is disposed on the composite body 101, and the filler material layer 109 covers the indented area 105 and fills the plurality of openings 107.
In the embodiment shown in fig. 3-4, the filler material layer 109 abuts against the outer boundary of the graphite layers 103, the filler material layer 109 is disposed in the same layer as the graphite layers 103, and the surface of the filler material layer 109 is flush with the surface of the graphite layers 103. And, the outer boundary of the filler material layer 109 coincides with the outer boundary of the composite body 101. This prevents visible marking of the composite structure 100 in the module state when it is subjected to pressure by attachment.
It should be appreciated that although in the illustrated embodiment the surface of the filler material layer 109 is flush with the surface of the graphite layer 103, the filler material layer 109 may also be disposed on the composite body 101 and the graphite layer 103, with the filler material layer 109 covering the setback region 105 and filling the plurality of openings 107. Thereby, the above technical object can be achieved.
Furthermore, although in the illustrated embodiment, the outer boundary of the filler material layer 109 coincides with the outer boundary of the composite body 101. It should be appreciated that the layer of filler material 109 may also cover only a portion of the setback region 105, as shown in fig. 5, with the layer of filler material 109 abutting the outer boundary of the graphite layers 103. Alternatively, the outer boundary of the filler material layer 109 may also coincide with the outer boundary of the composite body 101. Thus, the technical object can be achieved.
Referring now to fig. 6, fig. 6 is an elevation view of a composite structure 100 according to yet another embodiment of the invention. In contrast to the embodiment shown in fig. 3, in fig. 6, the outer boundary of the retraction region 105 has a special shape, such as at least one of a zigzag shape and a wave shape. Moreover, the part of the filling material layer 109 corresponding to the retracted region 105 is complementary to the graphite layer 103 at the boundary. This can further increase the contact area between the filler layer 109 and the graphite layer 103, thereby further preventing a step from occurring in the graphite layer 103 when a force is applied.
Furthermore, the material of the filling material layer 109 may be a thermoplastic polyester material. By filling the retracted region 105 and the plurality of openings 107 with the thermoplastic polyester material, the surface of the entire composite structure 100 is flat, and the problem of visible impressions in a module state due to pressure applied to the composite structure 100 during attachment can be effectively prevented.
In addition, the material of the filling material layer 109 may also be a hot melt adhesive material. By employing a hot melt adhesive material, the overall strength of the composite structure 100 can be further enhanced after the hot melt adhesive material is cured.
The present invention also provides an OLED panel having any of the above-described composite structures 100. By attaching the composite material to the back of the OLED panel, the strength of the OLED panel can be ensured, and the OLED panel has a good buffering effect. It should be noted that the composite structure 100 may further include one or more of a foam layer, a polyimide film, or a copper foil, so that the OLED panel with the composite structure attached thereto may also have the advantages of good heat dissipation and shielding effects, and material processing convenience.
While certain embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. Modifications and substitutions may be made by those skilled in the art without departing from the principles of the present application. For example, in the above-described embodiment, two sets of image pickup devices are provided in the frame area of the display device, but the display device may also have a plurality of sets of image pickup devices, and these image pickup devices are provided in the display unit.
In summary, the present invention provides a composite material structure and an OLED panel having the composite material structure, in which a filling material layer is used to fill the retracted regions and the plurality of openings of the graphite layer, so as to prevent the visible indentations in the module state when the composite material structure is subjected to a pressure due to attachment.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
Claims (5)
1. A composite structure, comprising:
a composite body;
a graphite layer provided on the composite material body, wherein a peripheral edge of the graphite layer is retracted with respect to a peripheral edge of the composite material body to form a retracted region surrounding the graphite layer, and the graphite layer is provided with a plurality of openings penetrating the graphite layer in a thickness direction of the graphite layer; and
the filling material layer is arranged on the composite material body, covers the retraction area and fills the open holes;
the filling material layer and the graphite layer are arranged on the same layer, and the surface of the filling material layer is flush with the surface of the graphite layer;
the material of the filling material layer is a thermoplastic polyester material; and filling the retraction area and the plurality of open holes by adopting a thermoplastic polyester material filling mode, so that the surface of the whole composite material structure is in a flat state.
2. The composite structure of claim 1 wherein the outer boundary of the filler material layer coincides with the outer boundary of the composite body.
3. The composite structure of claim 1, wherein the outer boundary of the graphite layer is at least one of serrated and wavy.
4. The composite structure of claim 3, wherein the portion of the filler material layer corresponding to the indented region is complementary to the graphite layer at the interface.
5. An OLED panel having a composite structure according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448351.0A CN112590320B (en) | 2020-12-09 | 2020-12-09 | Composite material structure and OLED panel with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448351.0A CN112590320B (en) | 2020-12-09 | 2020-12-09 | Composite material structure and OLED panel with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112590320A CN112590320A (en) | 2021-04-02 |
| CN112590320B true CN112590320B (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011448351.0A Active CN112590320B (en) | 2020-12-09 | 2020-12-09 | Composite material structure and OLED panel with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN112590320B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206411384U (en) * | 2017-02-07 | 2017-08-15 | 信利半导体有限公司 | A kind of graphite flake, backlight and liquid crystal module |
| CN108582900A (en) * | 2018-04-28 | 2018-09-28 | 康得复合材料有限责任公司 | Graphene paper glued membrane and its preparation method and application |
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| CN112590320A (en) | 2021-04-02 |
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