CN112467053A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112467053A CN112467053A CN202011349017.XA CN202011349017A CN112467053A CN 112467053 A CN112467053 A CN 112467053A CN 202011349017 A CN202011349017 A CN 202011349017A CN 112467053 A CN112467053 A CN 112467053A
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- 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
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- 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
- H10K50/842—Containers
- H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- Electroluminescent Light Sources (AREA)
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Abstract
The embodiment of the application provides a display panel and a display device, the frame region of the display panel comprises: a base layer; an inorganic layer disposed on the base layer and having a first mounting hole; a metal layer disposed on the inorganic layer; the retaining wall structure is arranged on the metal layer and the inorganic layer; the packaging layer is arranged on the retaining wall structure, the metal layer and the inorganic layer, and is provided with a second mounting hole which is communicated with the first mounting hole; and the anti-cracking structure is arranged in the first mounting hole and the second mounting hole, and the anti-cracking structure is positioned between the retaining wall structure and the edge of the base layer. The embodiment of the application can effectively prevent the display panel from generating cracks in the cutting process.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of electronic technology, the degree of intelligence of display devices such as smart phones is increasing. The display device can display a picture through a display screen thereof.
In the related art, the frame region of the display screen needs to be cut during the manufacturing process to form the desired display screen structure. However, in the actual cutting process, cracks are likely to be generated by the cutting operation.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can prevent a frame region of a display screen from generating cracks in a cutting process.
The embodiment of the application provides a display panel, display panel's frame region includes:
a base layer;
an inorganic layer disposed on the base layer and having a first mounting hole;
a metal layer disposed on the inorganic layer;
the retaining wall structure is arranged on the metal layer and the inorganic layer;
the packaging layer is arranged on the retaining wall structure, the metal layer and the inorganic layer, and is provided with a second mounting hole which is communicated with the first mounting hole; and
the anti-cracking structure is arranged in the first mounting hole and the second mounting hole, and the anti-cracking structure is located between the retaining wall structure and the edge of the base layer.
An embodiment of the present application further provides a display device, including the display panel as described above.
The anti-cracking structure is arranged in the second mounting hole of the packaging layer and the first mounting hole of the inorganic layer, and cracks of the display panel in the cutting process can be effectively prevented.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Fig. 2 is a first structural diagram of a frame region of a display panel according to an embodiment of the present disclosure.
Fig. 3 is a second structural diagram of a frame region of a display panel according to an embodiment of the present disclosure.
Fig. 4 is an enlarged view of a region a of the display panel shown in fig. 1.
Fig. 5 is a third structural diagram of a frame region of a display panel according to an embodiment of the present disclosure.
Fig. 6 is another enlarged view of a region a in the display panel shown in fig. 1.
Fig. 7 is a fourth structural diagram of a frame region of a display panel according to an embodiment of the present disclosure.
Fig. 8 is a fifth structural diagram of a frame region of a display panel according to an embodiment of the present disclosure.
Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. The display panel 20 includes a main display area 22 and a bezel area 24, and the bezel area 24 is disposed around the main display area 22. The display panel 20 may be an Organic Light-Emitting Diode (OLED) panel.
Referring to fig. 2 and fig. 3, fig. 2 is a first structural schematic diagram of a frame region of a display panel according to an embodiment of the present disclosure, and fig. 3 is a second structural schematic diagram of the frame region of the display panel according to the embodiment of the present disclosure. The bezel region 24 of the display panel 20 may include a base layer 100, an inorganic layer 200, a metal layer 300, a barrier structure 400, an encapsulation layer 500, and an anti-crack structure 600.
The base layer 100 may serve as a base of the display panel 20 to support other layer structures such as the inorganic layer 200, the metal layer 300, the barrier structure 400, the encapsulation layer 500, and the crack prevention structure 600. The base layer 100 may have a single-layer structure or a multi-layer structure. When the base layer 100 has a multi-layer structure, the base layer 100 may have three layers, including a first PI layer 120, a second PI layer 140, and an inorganic layer 160, and the inorganic layer 160 may be referred to as a third inorganic layer 260. The first PI layer 120, the inorganic layer 160, and the second PI layer 140 are sequentially stacked, and the inorganic layer 160 is disposed between the first PI layer 120 and the second PI layer 140. The first PI layer 120 may be positioned at an outermost layer of the display panel 20. The first PI layer 120 and the second PI layer 140 may be made of the same material, and both the first PI layer 120 and the second PI layer 140 may be polyimide films.
The inorganic layer 200 is disposed on the base layer 100, such as the inorganic layer 200 is disposed on the second PI layer 140 of the base layer 100. The inorganic layer 200 may include an inorganic layer 220 and an inorganic layer 240, the inorganic layer 220 may be referred to as a first inorganic layer, and the inorganic layer 240 may be referred to as a second inorganic layer 240. The first inorganic layer 220 may have a multi-layer structure, and may be an overlapped structure of silicon nitride or silicon dioxide, which may be understood as an upper inorganic layer. The second inorganic layer 240 may be an overlapping structure of silicon nitride or silicon dioxide.
The first inorganic layer 220 and the second inorganic layer 240 are stacked, the first inorganic layer 220 being disposed on the base layer 100, such as the first inorganic layer 220 being disposed on the second PI layer 140. The second inorganic layer 240 is disposed on the first inorganic layer 220.
The metal layer 300 is disposed on the inorganic layer 200, such as the metal layer 300 is disposed on the second inorganic layer 240. The metal layer 300 may be made of a titanium material or an aluminum material.
The barrier structures 400 are disposed on the metal layer 300 and the inorganic layer 200, such as the barrier structures 400 disposed on the metal layer 300 and the second inorganic layer 240. That is, a portion of the retaining wall structure 400 is disposed on the metal layer 300, and another portion is disposed on the second inorganic layer 240. The retaining wall structure 400 may be understood as an organic layer, and the retaining wall structure 400 may be a multi-layer structure, such as a layer structure including a planarization layer and a pixel defining layer.
The encapsulation layer 500 is disposed on the retaining wall structure 400, the metal layer 300 and the inorganic layer 200, such as the encapsulation layer 500 is disposed on the retaining wall structure 400, the metal layer 300 and the second inorganic layer 240. The encapsulation layer 500 may include a first inorganic encapsulation layer 520, a second inorganic encapsulation layer 540, and an organic encapsulation layer 550, the first inorganic encapsulation layer 520 may be disposed on the barrier structure 400, the metal layer 300, and the second inorganic layer 240, the organic encapsulation layer 560 may be disposed on the first inorganic encapsulation layer 520, and the second inorganic encapsulation layer 540 may be disposed on the first inorganic encapsulation layer 520 and the organic encapsulation layer 560.
It should be noted that, in order to increase the reliability of the OLED panel, a Thin Film Encapsulation (TFE) process may be used to form the thin film encapsulation layer, i.e., the encapsulation layer 500, during the manufacturing process. In the production process of the display panel, a cutting operation is also required, and cracks (cracks) are easily generated in the cutting process. In order to prevent the cracks generated during the cutting process from extending toward the display panel, some embodiments of the present application set the distance between the edge of the retaining wall structure 500 and the edge of the base layer 100 to be 0.2 mm to 0.3 mm, and even if the cracks are generated during the cutting process, the cracks generally do not affect the formed display panel 20 because the distance between the retaining wall structure 500 and the base layer 100 is sufficiently large. However, such a design increases the space in the frame area 24 of the display panel 20, and decreases the screen occupation ratio.
In other embodiments of the present application, the anti-crack structure 600 is disposed in the frame region 24 of the display panel 20, and the anti-crack structure 600 defined in the embodiments of the present application can effectively prevent cracks formed by the cutting process from affecting the frame region 24 of the display panel 20. In addition, the width of the frame region 24 can be reduced in the embodiments of the present application, such as the embodiments of the present application set the distance between the edge of the retaining wall structure 500 and the edge of the base layer 100 to be 0.1 mm to 0.15 mm, that is, the distance between the edge of the retaining wall structure 500 and the edge of the base layer 100 is greater than or equal to 0.1 mm and less than or equal to 0.15 mm. Thereby facilitating a narrow bezel design for the display panel 20.
In the embodiment of the present application, the first mounting hole 222 may be disposed in the inorganic layer 200, and the first mounting hole 222 may be disposed in the first inorganic layer 220. That is, the first inorganic layer 220 has a first mounting hole 222 formed through the first inorganic layer 220. And the first mounting hole 222 is formed at a portion where the second inorganic layer 240 is not stacked on the first inorganic layer 220.
In the embodiment of the present application, a second mounting hole 510 may be further disposed in the encapsulation layer 500, and the second mounting hole 510 may be disposed on the first inorganic encapsulation layer 520 and the second inorganic encapsulation layer 540, that is, the first inorganic encapsulation layer 520 and the second inorganic encapsulation layer 540 are disposed with the second mounting hole 510 penetrating through the first inorganic encapsulation layer 520 and the second inorganic encapsulation layer 540 in the thickness thereof. The first mounting hole 222 and the second mounting hole 510 communicate with each other.
The crack prevention structure 600 according to the embodiment of the present application may be disposed in the first mounting hole 222 and the second mounting hole 510. Wherein the first and second mounting holes 222 and 510 are located between the edge of the base layer 100 and the retaining wall structure 400, and the crack prevention structure 600 is located between the edge of the base layer 100 and the retaining wall structure 400.
In other embodiments of the present application, a mounting groove may be further formed on the base layer 100, such as a mounting groove 142 formed on the second PI layer 140. The mounting groove 142 communicates with the first mounting hole 222. The crack prevention structure 600 may also be disposed in the mounting groove 142. The mounting groove 142 may not penetrate through the second PI layer 140 in the thickness of the second PI layer 140, i.e., it is a blind hole.
It should be noted that, in the actual dicing process, the problem of crack propagation caused by dicing is mainly propagated on the first inorganic encapsulation layer 520, the second inorganic encapsulation layer 540, and the first inorganic layer 220. The crack control structure 600 is at least arranged in the first mounting hole 222 of the first inorganic layer 220 and the second mounting hole 510 of the packaging layer 500, so that crack extension can be effectively achieved. Further, the width of the frame region 24 of the display panel 20 can be reduced on the basis of effectively extending the cracks, which is beneficial to narrow frame design.
In order to increase the stability of the crack prevention structure 600, the embodiment of the present application may set the size of the cross section of the mounting groove 142 to be greater than the size of the cross section of the first mounting hole 222, and set the size of the cross section of the first mounting hole 222 to be greater than the size of the cross section of the second mounting hole 510. The mounting groove 142 may be an arc-shaped groove or a strip-shaped groove. The first mounting hole 222 and the second mounting hole 510 may each be a bar-shaped hole. It should be noted that the shapes of the mounting groove 142, the first mounting hole 222, and the second mounting hole 510 are not limited thereto.
The number of the first mounting holes 222 may be one or more, the number of the second mounting holes 510 may be one or more, the number of the mounting grooves 142 may be one or more, and the number of the mounting grooves 142, the number of the first mounting holes 222 and the number of the second mounting holes 510 are the same. The crack prevention structure may be one or more, and one crack prevention structure 600 may be disposed in one first mounting hole 222, one second mounting hole 510, and one mounting groove 142.
When the number of the first mounting holes 222 is plural and the number of the second mounting holes 510 is plural, one anti-crack structure 600 is disposed in at least two first mounting holes 222, at least two second mounting holes 510, and at least two mounting grooves 142.
Referring to fig. 4, fig. 4 is an enlarged view of a region a of the display panel shown in fig. 1. Wherein one mounting groove 142, one first mounting hole 222 and one second mounting hole 510 may form an anti-crack hole 700.
The crack prevention structure 600 may include a first mounting portion 610, a second mounting portion 620, and a plurality of connection portions 650, the first mounting portion 610 being disposed at one mounting groove 142, one first mounting hole 222, and one second mounting hole 510, and the second mounting portion 620 being disposed at one mounting groove 142, one first mounting hole 222, and one second mounting hole 510. A connecting portion 650 connects one second mounting portion 620 to the first mounting portion 610.
The cross section of the anti-cracking structure 600 may be one or more of rectangular, rounded rectangular, diamond-shaped, and oval. When the crack prevention structure 600 has a plurality of mounting parts such as the first mounting part 610 and the second mounting part 620, the first mounting part 610 and the second mounting part 620 may have the same cross section or may have different cross sections.
Referring to fig. 5 and fig. 6, fig. 5 is a third structural schematic diagram of a frame region of a display panel according to an embodiment of the present disclosure, and fig. 6 is another enlarged view of a region a in the display panel shown in fig. 1. One mounting groove 142, one first mounting hole 222, and one second mounting hole 510 may form an anti-crack hole 700. One of the crack prevention structures 600 of the embodiment of the present application may be installed in one crack prevention hole 700, that is, one of the crack prevention structures 600 may be installed in one installation groove 142, one first installation hole 222, and one second installation hole 510.
Fig. 7 is a fourth structural diagram of a frame region of a display panel according to an embodiment of the present disclosure, where an anti-crack structure 600 according to an embodiment of the present disclosure may include a first mounting portion 610, a second mounting portion 620, a third mounting portion 630, and a connecting portion 650, where one first mounting portion 610, one second mounting portion 620, and one third mounting portion 630 may be connected to the same connecting portion 650, and one third mounting portion 630 may be disposed in one mounting groove 142, one first mounting hole 222, and one second mounting hole 510.
Fig. 8 is a fifth structural diagram of a frame region of a display panel according to an embodiment of the present disclosure, where the anti-crack structure 600 according to an embodiment of the present disclosure may include a first mounting portion 610, a second mounting portion 620, a third mounting portion 630, a fourth mounting portion 640, and a connecting portion 650, where one first mounting portion 610, one second mounting portion 620, one third mounting portion 630, and one fourth mounting portion 640 may be connected to the same connecting portion 650, and one fourth mounting portion 640 may be disposed in one mounting groove 142, one first mounting hole 222, and one second mounting hole 510.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application. The display device 2 may include a processor 40, a memory 60, and a display panel 20, both the display panel 20 and the memory 60 being connected to the processor 40.
The memory 60 may be used to store software programs as well as various data. The memory 60 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 60 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 40 is a control center of the display apparatus 2, and various parts of the entire display apparatus are connected by various interfaces and lines, such as the processor 40 electrically connecting the display panel 20 and the memory 60. The processor 40 performs various functions of the display apparatus 2 and processes data by running or executing software programs and/or modules stored in the memory 60 and calling up data stored in the memory 60, thereby performing overall monitoring of the display apparatus 2. Processor 40 may include one or more processing units; such as processor 40 may be integrated with an application processor that primarily handles operating systems, user interfaces, application programs, and the like.
It should be noted that the display device 2 in each of the above embodiments may further include other devices, such as a battery, a camera, and the like, and details are not repeated here.
The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (13)
1. A display panel, wherein a frame region of the display panel includes:
a base layer;
an inorganic layer disposed on the base layer and having a first mounting hole;
a metal layer disposed on the inorganic layer;
the retaining wall structure is arranged on the metal layer and the inorganic layer;
the packaging layer is arranged on the retaining wall structure, the metal layer and the inorganic layer, and is provided with a second mounting hole which is communicated with the first mounting hole; and
the anti-cracking structure is arranged in the first mounting hole and the second mounting hole, and the anti-cracking structure is located between the retaining wall structure and the edge of the base layer.
2. The display panel according to claim 1, wherein the inorganic layer comprises:
a first inorganic layer disposed on the base layer; and
a second inorganic layer disposed on the first inorganic layer;
the first mounting hole is formed at a portion where the first inorganic layer is not laminated with the second inorganic layer.
3. The display panel according to claim 2, wherein the base layer comprises:
a first PI layer;
a third inorganic layer disposed on the first PI layer; and
the second PI layer is arranged on the third inorganic layer and provided with a mounting groove, and the mounting groove is communicated with the first mounting hole;
the anti-cracking structure is further arranged in the mounting hole.
4. The display panel according to claim 3, wherein a cross section of the mounting groove is larger than a cross section of a first mounting hole, and a cross section of the first mounting hole is larger than a cross section of the second mounting hole.
5. The display panel according to claim 3, wherein the mounting groove is an arc-shaped groove, and the first mounting hole and the second mounting hole are both strip-shaped holes.
6. The display panel according to claim 1, wherein the base layer comprises:
a first PI layer;
a third inorganic layer disposed on the first PI layer; and
the second PI layer is arranged on the third inorganic layer and provided with a mounting groove, and the mounting groove is communicated with the first mounting hole;
the anti-cracking structure is further arranged in the mounting hole.
7. The display panel according to claim 1, wherein a cross section of the first mounting hole is larger than a cross section of the first mounting hole.
8. The display panel according to any one of claims 1 to 7, wherein the number of the first mounting holes is one or more, the number of the second mounting holes is one or more, the number of the first mounting holes is the same as the number of the second mounting holes, the number of the crack prevention structures is one or more, and one crack prevention structure is provided in each of the first mounting holes and the second mounting holes.
9. The display panel according to any one of claims 1 to 7, wherein the first mounting holes are plural, the second mounting holes are plural, the number of the first mounting holes is the same as that of the second mounting holes, the crack prevention structure is one or more, and one crack prevention structure is provided in at least two of the first mounting holes and at least two of the second mounting holes.
10. The display panel according to any one of claims 1 to 7, wherein the crack prevention structure includes a first mounting portion, a plurality of second mounting portions, and a plurality of connecting portions, the first mounting portion being provided in one of the first mounting holes and one of the second mounting holes, one of the second mounting portions being provided in one of the first mounting holes and one of the second mounting holes, and one of the connecting portions connecting one of the second mounting portions to the first mounting portion.
11. The display panel according to any one of claims 1 to 7, wherein the vertical cross section of the anti-cracking structure is in one or more of a rectangular shape, a rounded rectangular shape, a diamond shape and an oval shape.
12. The display panel according to any one of claims 1 to 7, wherein the distance from the retaining wall structure to the edge of the base layer is greater than or equal to 0.1 mm and less than or equal to 0.15 mm.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349017.XA CN112467053A (en) | 2020-11-26 | 2020-11-26 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349017.XA CN112467053A (en) | 2020-11-26 | 2020-11-26 | Display panel and display device |
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| CN112467053A true CN112467053A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011349017.XA Pending CN112467053A (en) | 2020-11-26 | 2020-11-26 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113470519A (en) * | 2021-06-16 | 2021-10-01 | 武汉华星光电技术有限公司 | Display panel and mobile terminal |
| CN115050908A (en) * | 2022-06-09 | 2022-09-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
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| US20190288243A1 (en) * | 2018-03-13 | 2019-09-19 | Boe Technology Group Co., Ltd. | Array substrate, method for manufacturing array substrate, and display panel |
| CN111261642A (en) * | 2020-02-10 | 2020-06-09 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel |
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| US20190288243A1 (en) * | 2018-03-13 | 2019-09-19 | Boe Technology Group Co., Ltd. | Array substrate, method for manufacturing array substrate, and display panel |
| CN108598287A (en) * | 2018-06-29 | 2018-09-28 | 上海天马微电子有限公司 | Flexible touch-control display panel and preparation method thereof, flexible touch control display apparatus |
| CN111261642A (en) * | 2020-02-10 | 2020-06-09 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel |
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| CN113470519A (en) * | 2021-06-16 | 2021-10-01 | 武汉华星光电技术有限公司 | Display panel and mobile terminal |
| CN115050908A (en) * | 2022-06-09 | 2022-09-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN115050908B (en) * | 2022-06-09 | 2023-12-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
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