CN211403923U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN211403923U CN211403923U CN202020333667.4U CN202020333667U CN211403923U CN 211403923 U CN211403923 U CN 211403923U CN 202020333667 U CN202020333667 U CN 202020333667U CN 211403923 U CN211403923 U CN 211403923U
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Abstract
The utility model discloses a display panel and display device. The display panel comprises a display area and a bending area positioned on one side of the display area; the display panel further includes a substrate base plate; the multilayer middle film layer is positioned on one side of the substrate base plate and positioned in the bending area and comprises a first middle film layer far away from one side of the substrate base plate; the bending protective layer is positioned on one side of the first middle film layer, which is far away from the substrate base plate, and at least positioned in the bending area; at least one part of the surface of one side of the first middle film layer, which is close to the bending protective layer, is provided with a patterned graph, and the bending protective layer is filled with the patterned graph. The embodiment of the utility model provides a, be formed with patterned graph through a side surface that is close to the protective layer of buckling at least partial first intermediate film layer, and buckle the protective layer and fill patterned graph, avoid buckling the phenomenon that causes the protective layer of buckling and first intermediate film layer separation because of display panel, increase the adhesive force of the protective layer of buckling and first intermediate film layer, the protection is buckled the district and is walked the line.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a display panel and display device.
Background
With the development of display technology, more and more devices such as curved-screen mobile phones and curved-surface televisions with full flexible display gradually enter the visual field of people.
However, in the display device, the flexible substrate of the conventional display panel is bonded in the bending region by the UV glue to protect the circuit in the bending region, thereby preventing the wire in the bending region from being broken due to abrasion. However, the display panel has an excessively large stress in the bending region, which is likely to cause the separation of the UV glue from the bending region, and the phenomenon of wire breakage in the bending region, resulting in the abnormal display of the display panel.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a display panel and display device to solve and buckle because of display panel and cause the phenomenon of buckling protective layer and the separation of first middle rete, increase the adhesive force of buckling protective layer and first middle rete, the line is walked in the protection district of buckling.
The embodiment of the utility model provides a display panel, including the display area and the bending area that is located one side of the display area;
the display panel further comprises a substrate base plate;
the multilayer middle film layer is positioned on one side of the substrate base plate and positioned in the bending area, and comprises a first middle film layer far away from one side of the substrate base plate;
the bending protection layer is positioned on one side of the first middle film layer, which is far away from the substrate base plate, and is at least positioned in the bending area;
at least part of the surface of one side of the first middle film layer, which is close to the bending protective layer, is provided with a patterned pattern, and the bending protective layer fills the patterned pattern.
Optionally, the entire patterned pattern is formed on the surface of one side of the first intermediate film layer, which is close to the bending protection layer.
Optionally, the display panel further includes a first buffer layer, a first inorganic layer, a planarization layer, and a pixel defining layer, which are located in the display region and stacked on one side of the substrate;
the bending protection layer covers a part of the pixel defining layer close to the bending area.
Optionally, a patterned pattern is formed on a surface of the pixel defining layer on a side close to the bending protection layer, a portion of the patterned pattern penetrates through the pixel defining layer, and the bending protection layer fills the patterned pattern.
Optionally, the intermediate film layer includes a second buffer layer, a second inorganic layer, a first organic layer, and a metal routing layer, which are stacked; the first intermediate film layer is a second organic layer;
a first groove structure penetrating through the second buffer layer is formed in the second buffer layer, a second groove structure penetrating through the second inorganic layer is formed in the second inorganic layer, and the vertical projection of the second groove structure on the plane of the substrate base plate covers the vertical projection of the first groove structure on the substrate base plate;
the first organic layer fills the first groove structure and the second groove structure and covers part of the second inorganic layer;
a plurality of third groove structures are formed in the second inorganic layer in the area not covered by the first organic layer, and the third groove structures partially penetrate through the second inorganic layer;
the metal routing layer covers the second inorganic layer, the third groove structure and the first organic layer.
Optionally, the first buffer layer and the second buffer layer are disposed on the same layer;
the first inorganic layer and the second inorganic layer are arranged at the same layer;
the second inorganic layer is disposed in the same layer as the planarization layer and/or the pixel defining layer.
Optionally, the patterned pattern partially penetrates through the first intermediate film, and the patterned pattern is formed by a semi-transparent metal mask process.
Optionally, the bending protection layer includes an ultraviolet curing glue layer.
Optionally, the patterned patterns include at least one of stripes, waves, diamonds, or grids.
The embodiment of the utility model provides a display device is still provided, including any one of the above-mentioned embodiment display panel.
The embodiment of the utility model provides an in, be formed with the patterning figure through a side surface that is close to the protective layer of buckling at least partial first middle rete, and buckle the protective layer and fill the patterning figure, through the first middle rete of patterning, increase the area of contact of first middle rete and protective layer, avoid buckling the phenomenon that causes the protective layer of buckling and first middle rete to separate because of display panel buckles, increase the adhesion of the protective layer of buckling and first middle rete, the line is walked in the protection bending zone.
Drawings
FIG. 1 is a schematic diagram of a display panel in the prior art;
fig. 2 is a structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a patterned graph according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another patterned graph according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another patterned graph according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another patterned graph according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display panel in the prior art, as shown in fig. 1, in the prior art, the display panel includes a display area 100 'and a bending area 200', the bending area 200 'includes a plurality of middle film layers 20', and a bending protection layer 30 'covers a first middle film layer 21' of the plurality of middle film layers 20', when the display panel is bent, the bending protection layer 30' of the display panel is easily separated from the first middle film layer 21 'under the action of a bending stress, and since the first middle film layer 21' is thin, after the bending protection layer 30 'is separated from the first middle film layer 21', a metal trace in the bending area is easily broken under the bending condition.
Based on the above technical problem, an embodiment of the present invention provides a display panel, including: the display device comprises a display area and a bending area positioned on one side of the display area; the display panel further includes a substrate base plate; the multilayer middle film layer is positioned on one side of the substrate base plate and positioned in the bending area and comprises a first middle film layer far away from one side of the substrate base plate; the bending protective layer is positioned on one side of the first middle film layer, which is far away from the substrate base plate, and at least positioned in the bending area; at least one part of the surface of one side of the first middle film layer, which is close to the bending protective layer, is provided with a patterned graph, and the bending protective layer is filled with the patterned graph. Through the first middle film layer of patterning, the area of contact of the first middle film layer and the protective layer is increased, the phenomenon that the protective layer is separated from the first middle film layer due to bending of the display panel is avoided, the adhesion force of the bending protective layer and the first middle film layer is increased, and the wiring in the bending area is protected.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention, as shown in fig. 2, the display panel includes a display area 100 and a bending area 200 located at one side of the display area 100; the display panel further includes a substrate base plate 10; the multilayer intermediate film layer 20 is positioned on one side of the substrate base plate 10 and positioned in the bending area 200, and the multilayer intermediate film layer 20 comprises a first intermediate film layer 21 far away from one side of the substrate base plate 10; the bending protection layer 30 is positioned on one side of the first intermediate film layer 21, which is far away from the substrate base plate 10, and is at least positioned in the bending area 200; at least a part of the first intermediate film layer 21 has a patterned pattern 310 formed on a side surface thereof adjacent to the bending protection layer 30, and the bending protection layer 30 fills the patterned pattern 310.
As shown in fig. 2, the bending region 200 of the display panel includes a plurality of middle film layers 20, and a patterned pattern 310 is formed on a surface of a first middle film layer 21 of the plurality of middle film layers 20, the surface being close to a side of the bending protection layer 30. By forming the patterned patterns 310 on the surface of the first middle film layer 21 and filling the patterned patterns 310 with the bending protection layer 30, the contact area between the bending protection layer 30 and the first middle film layer 21 is increased, the adhesion between the bending protection layer 30 and the first middle film layer 21 is improved, and the protection effect of the bending protection layer 30 on the display panel bending region 200 is further improved.
It should be noted that fig. 2 exemplarily shows that a patterned pattern 310 is formed on a side surface of a portion of the first intermediate film layer 21 close to the bending protection layer 30, and the bending protection layer 30 fills the patterned pattern 310. Also can set up one side surface that first middle rete 21 is close to the protective layer 30 of buckling and be formed with the patterned graph 310 of whole face, the protective layer 30 of buckling fills patterned graph 310, as shown in fig. 3, through setting up first middle rete 21 and be close to the protective layer 30 of buckling's whole face formation patterned graph 310, can further increase first middle rete 21 and the area of contact of the protective layer 30 of buckling, when display panel takes place to buckle, the bending stress that the protective layer 30 received is reduced with the area of contact of the protective layer 30 of buckling through first middle rete 21, and then avoid the protective layer 30 of buckling and the phenomenon that first middle rete 21 takes place to separate, the bending stress that the protective layer 30 of buckling received has been reduced.
Further, with continued reference to fig. 2, the patterned pattern 310 partially penetrates the first intermediate film layer 21, and the patterned pattern 310 is formed by a semi-transparent metal mask process.
As shown in fig. 2, the patterned graph 310 partially penetrates through the first middle film layer 21, and the patterned graph 310 formed by the semitransparent metal mask process partially penetrates through the first middle film layer 21, so as to prevent the bending protection layer 30 from penetrating through the first middle film layer 21 and directly contacting the trace metal layer 25, which may cause poor conduction of the trace circuit and affect the display effect of the display panel.
The embodiment of the utility model provides a, through the first middle rete of patterning, increase the area of contact of first middle rete and protective layer, avoid buckling because of display panel and cause the phenomenon of buckling protective layer and the separation of first middle rete, increase the adhesive force of buckling protective layer and first middle rete, reinforcing display panel's the protection effect of buckling.
On the basis of the above embodiment, fig. 4 is a schematic structural diagram of another display panel provided by the embodiment of the present invention, as shown in fig. 4, the display panel further includes a first buffer layer 11, a first inorganic layer 12, a planarization layer 13, and a pixel defining layer 14, which are located in the display area 100 and stacked on one side of the substrate 10, and the bending protection layer 30 covers a portion of the pixel defining layer 14 near the bending area 200.
As shown in fig. 4, since the display area 100 and the bending area 200 of the display panel are directly connected, the bending protection layer 30 is disposed to cover a portion of the pixel defining layer 14 of the display area 100, that is, the bending protection layer 30 extends from the bending area 200 to the pixel defining layer 14 of the display area 100, so as to ensure that the bending protection layer 30 can completely cover the bending area 200, thereby protecting the wiring and the film of the bending area 200 from being damaged; further, the phenomenon that the display area 100 and the bending area 200 are broken due to the fact that the area where the display area 100 and the bending area 200 are connected is subjected to large bending stress when the display panel is bent is avoided, the phenomenon that the surface of the display panel is broken is caused, and packaging firmness of the display panel is improved.
Further, as shown in fig. 4, a patterned pattern 310 is formed on a side surface of the pixel defining layer 14 close to the bending protection layer 30, and the bending protection layer 30 fills the patterned pattern 310.
By extending the bending protection layer 30 to the pixel defining layer 14 of the display area 100 and forming the patterned pattern 310 on one side of the pixel defining layer 14 close to the bending protection layer 30, the contact area between the pixel defining layer 14 and the bending protection layer 30 is increased, so as to enhance the adhesion between the pixel defining layer 14 and the bending protection layer 30, and further avoid the display area 100 and the bending area 200 of the display panel from breaking.
It should be noted that, in the embodiment of the present invention, a portion of the pixel defining layer 14 is disposed to cover the bending protection layer 30. In other embodiments, the position of the bending protection layer 30 in the display area 100 can be flexibly set according to the type of the display panel, and the embodiment of the present invention does not limit the specific position of the bending protection layer 30 in the display area 100.
Optionally, with continued reference to fig. 4, the middle film layer 20 includes a second buffer layer 22, a second inorganic layer 23, a first organic layer 24, and a metal routing layer 25, which are stacked; the first intermediate film layer 21 is a second organic layer 26;
a first groove structure 210 penetrating through the second buffer layer 22 is formed in the second buffer layer 22, a second groove structure 220 penetrating through the second inorganic layer 23 is formed in the second inorganic layer 23, and a vertical projection of the second groove structure 220 on a plane where the substrate base plate 10 is located covers a vertical projection of the first groove structure 210 on the substrate base plate 10;
the first organic layer 24 fills the first and second groove structures 210 and 220 and covers a portion of the second inorganic layer 23;
a plurality of third groove structures 230 are formed in the second inorganic layer 23 in the regions not covered by the first organic layer 24, and the third groove structures 240 partially penetrate through the second inorganic layer 23;
the metal wiring layer 25 covers the second inorganic layer 23, the third groove structure 230, and the first organic layer 24.
As shown in fig. 4, by arranging the first groove structure 210, the second groove structure 220 and the third groove structure 230 in the bending region 200, the design of the first groove structure 210, the second groove structure 220 and the third groove structure 230 can release the bending stress of the display panel when bending occurs through the grooves, so as to reduce the stress action of the bending region 200 when bending occurs, and further avoid the fracture phenomenon of the bending region 200 caused by the large stress action of each film structure when bending occurs in the display panel. On the other hand, the third groove structure 230 is arranged, so that the contact area between the metal wiring layer 25 and the film layer below the metal wiring layer can be increased, and the bending resistance of the metal layer can be increased.
Optionally, with continued reference to fig. 4, the first buffer layer 11 and the second buffer layer 22 are disposed in the same layer;
the first inorganic layer 12 and the second inorganic layer 23 are disposed on the same layer;
the second organic layer 26 is disposed in layer with the planarization layer 13 and/or the pixel defining layer 14.
Through setting the first buffer layer and the second buffer layer on the same layer, on one hand, the first buffer layer and the second buffer layer can be formed in the same process step, mask plates do not need to be manufactured on the first buffer layer and the second buffer layer respectively, the cost is saved, the number of processes is reduced, the production efficiency is improved, and on the other hand, through setting the first buffer layer and the second buffer layer on the same layer, the whole film layer structure of the display panel is simple, and the light and thin design of the display panel is favorably realized. The principle of arranging the first inorganic layer and the second inorganic layer at the same layer and arranging the second organic layer and the planarization layer and/or the pixel limiting layer at the same layer is the same as that of arranging the first buffer layer and the second buffer layer at the same layer.
It should be noted that fig. 4 exemplarily shows that the second organic layer 26 and the pixel defining layer 14 are disposed on the same layer, and those skilled in the art may also set the second organic layer 26 and the planarization layer 13 on the same layer according to the actual situation of the display panel, and the embodiment of the present invention does not limit the specific layer of the second organic layer 26.
Optionally, the bending protection layer 30 includes an ultraviolet curing glue layer.
The ultraviolet curing adhesive layer is an adhesive which can be cured only by ultraviolet irradiation and can be used as an adhesive, and the principle is that a photoinitiator in a curing material of the ultraviolet curing adhesive layer absorbs ultraviolet light under the irradiation of ultraviolet rays to generate active free radicals or cations to initiate monomer polymerization and crosslinking chemical reaction, so that the adhesive is converted from a liquid state to a solid state within several seconds. The bending protection layer 30 is selected to be an ultraviolet curing adhesive layer and an ultraviolet curing adhesive layer, and the ultraviolet curing adhesive layer covers the first middle film layer formed with the patterned graph 310, so that the adhesive force between the ultraviolet curing adhesive layer and the first middle film layer can be improved, the operation process is simple, and the realization is convenient.
Alternatively, as shown in fig. 5 to 8, the patterned patterns 310 include at least one of stripes, waves, diamonds, or grids.
Since the friction between the bending protection layer 30 and the first middle film layer 21 is small, when the display panel is bent, the bending protection layer 30 is easily separated from the first middle film layer 21. By forming the patterned pattern 310 on the first middle film layer 21 and filling the bending protection layer 30 in the patterned pattern 310, the friction between the bending protection layer 30 and the first middle film layer 21 can be effectively increased, thereby avoiding the separation of the bending protection layer 30 and the first middle film layer 21 due to the bending of the display panel, increasing the adhesion between the bending protection layer 30 and the first middle film layer 21, and protecting the wiring of the bending region 200.
It should be noted that the patterned patterns 310 may be at least one of a strip shape, a wave shape, a diamond shape, or a grid shape, and those skilled in the art can set the shape of the patterned patterns 310 according to the specific use scenario of the display panel, and the embodiment of the present invention does not limit the specific shape of the patterned patterns.
The embodiment of the utility model provides a display device is still provided, including the display panel of any one of the above-mentioned embodiments. Fig. 6 is a schematic diagram of a display device according to an embodiment of the present invention, referring to fig. 6, the display device includes a display panel, the display panel is a display panel according to any of the above embodiments, wherein the display device may be a mobile phone as shown in fig. 6, or a computer, a television, an intelligent wearable display device, and the like, and the embodiment of the present invention is not limited to this.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A display panel is characterized by comprising a display area and a bending area positioned on one side of the display area;
the display panel further comprises a substrate base plate;
the multilayer middle film layer is positioned on one side of the substrate base plate and positioned in the bending area, and comprises a first middle film layer far away from one side of the substrate base plate;
the bending protection layer is positioned on one side of the first middle film layer, which is far away from the substrate base plate, and is at least positioned in the bending area;
at least part of the surface of one side of the first middle film layer, which is close to the bending protective layer, is provided with a patterned pattern, and the bending protective layer fills the patterned pattern.
2. The display panel according to claim 1, wherein a surface of the first middle film layer on a side thereof adjacent to the bending protection layer is formed with the entire patterned pattern, and the bending protection layer fills the patterned pattern.
3. The display panel according to claim 1, further comprising a first buffer layer, a first inorganic layer, a planarization layer, and a pixel defining layer which are provided in a stacked manner on the substrate side in the display region;
the bending protection layer covers a part of the pixel defining layer close to the bending area.
4. The display panel according to claim 3, wherein a patterned pattern is formed on a side surface of the pixel defining layer adjacent to the bending protection layer, and the bending protection layer fills the patterned pattern.
5. The display panel according to claim 3, wherein the middle film layer comprises a second buffer layer, a second inorganic layer, a first organic layer and a metal wiring layer which are stacked; the first intermediate film layer is a second organic layer;
a first groove structure penetrating through the second buffer layer is formed in the second buffer layer, a second groove structure penetrating through the second inorganic layer is formed in the second inorganic layer, and the vertical projection of the second groove structure on the plane of the substrate base plate covers the vertical projection of the first groove structure on the substrate base plate;
the first organic layer fills the first groove structure and the second groove structure and covers part of the second inorganic layer;
a plurality of third groove structures are formed in the second inorganic layer in the area not covered by the first organic layer, and the third groove structures partially penetrate through the second inorganic layer;
the metal routing layer covers the second inorganic layer, the third groove structure and the first organic layer.
6. The display panel according to claim 5, wherein the first buffer layer and the second buffer layer are disposed on the same layer;
the first inorganic layer and the second inorganic layer are arranged at the same layer;
the second organic layer is disposed in a same layer as the planarization layer and/or the pixel defining layer.
7. The display panel according to claim 1, wherein the patterned pattern partially penetrates through the first intermediate film layer, and the patterned pattern is formed by a semi-transparent metal mask process.
8. The display panel of claim 1, wherein the bend protection layer comprises an ultraviolet cured glue layer.
9. The display panel of claim 1, wherein the patterned patterns comprise at least one of stripes, waves, diamonds, or grids.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333667.4U CN211403923U (en) | 2020-03-17 | 2020-03-17 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333667.4U CN211403923U (en) | 2020-03-17 | 2020-03-17 | Display panel and display device |
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| CN211403923U true CN211403923U (en) | 2020-09-01 |
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| CN202020333667.4U Active CN211403923U (en) | 2020-03-17 | 2020-03-17 | Display panel and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341949A (en) * | 2020-11-03 | 2021-02-09 | 京东方科技集团股份有限公司 | Protective film, protective film attaching method, display module and display device |
| CN112951849A (en) * | 2021-02-10 | 2021-06-11 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114267250A (en) * | 2021-12-14 | 2022-04-01 | 合肥维信诺科技有限公司 | Flexible display panel, manufacturing method thereof and display device |
-
2020
- 2020-03-17 CN CN202020333667.4U patent/CN211403923U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341949A (en) * | 2020-11-03 | 2021-02-09 | 京东方科技集团股份有限公司 | Protective film, protective film attaching method, display module and display device |
| CN112951849A (en) * | 2021-02-10 | 2021-06-11 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114267250A (en) * | 2021-12-14 | 2022-04-01 | 合肥维信诺科技有限公司 | Flexible display panel, manufacturing method thereof and display device |
| CN114267250B (en) * | 2021-12-14 | 2023-11-17 | 合肥维信诺科技有限公司 | Flexible display panel, manufacturing method thereof and display device |
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Address after: 201506 No. nine, No. 1568 engineering road, Shanghai, Jinshan District Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201506 No. nine, No. 1568 engineering road, Shanghai, Jinshan District Patentee before: EverDisplay Optronics (Shanghai) Ltd. |