CN111179778B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN111179778B
CN111179778B CN202010121030.3A CN202010121030A CN111179778B CN 111179778 B CN111179778 B CN 111179778B CN 202010121030 A CN202010121030 A CN 202010121030A CN 111179778 B CN111179778 B CN 111179778B
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substrate
layer
display panel
area
away
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CN111179778A (en
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孙站
叶铮
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The invention provides a display panel and a display device, and solves the problem that a single-layer substrate area of a display module product is easy to break after falling due to the fact that the strength of a module is influenced because a gap exists in the single-layer substrate area. The method comprises the following steps: a first substrate; the second substrate is arranged on one side of the first substrate, wherein the length of the first substrate is smaller than that of the second substrate, the area of the second substrate, which is in contact with the first substrate, is a double-layer substrate area, and the area of the second substrate, which is not in contact with the first substrate, is a single-layer substrate area; and a reinforcing layer disposed on a side of the second substrate away from the first substrate, and configured to disperse stress applied to the second substrate.

Description

Display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of display technology, display panels based on Organic Light Emitting Diodes (OLED) are widely used. The OLED display panel mainly includes an LTPS (Low Temperature polysilicon) substrate, a package substrate, and a Flexible Printed Circuit board (FPC) to form a display portion, where a COF (Chip On Flex, or, Chip On Film, or a Printed Circuit board) or other Circuit materials are required to be bonded to an LTPS layer, so that there is a single-layer substrate area, a gap may exist in the single-layer substrate area, and there is a failure problem caused by easy cracking, thereby affecting the overall strength of the panel.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display panel and a display device, which solve the problem that a single-layer substrate of the display panel is prone to crack and fail, and improve the strength of the display panel.
An embodiment of the present invention provides a display panel and a display device, including: a first substrate; the second substrate is arranged on one side of the first substrate, wherein the length of the first substrate is smaller than that of the second substrate, the area of the second substrate, which is in contact with the first substrate, is a double-layer substrate area, and the area of the second substrate, which is not in contact with the first substrate, is a single-layer substrate area; and a reinforcing layer disposed on a side of the second substrate remote from the first substrate, configured to disperse stress borne by the second substrate.
In one embodiment, a projection of the stiffening layer onto the second substrate is located at least in the area of the single-layer substrate. The reinforcing layer is positioned in the single-layer substrate area and the partial double-layer substrate area, so that the stress borne by the single-layer area of the second substrate is dispersed, and meanwhile, the edge of the double-layer substrate area is supported and the stress of the edge is dispersed.
In one embodiment, the material of the reinforcing layer is silicone adhesive, and the thickness of the reinforcing layer is 0.05-1 mm.
In one embodiment, the reinforcement layer and the second substrate are integrally prepared; preferably, the second substrate is made of glass.
In one embodiment, the dual-layer substrate further comprises a buffer layer disposed on a side of the second substrate away from the first substrate, wherein the buffer layer and the reinforcing layer are arranged side by side on the side of the second substrate away from the first substrate, and a projection of the buffer layer on the second substrate is located in the dual-layer substrate region.
In one embodiment, the single-layer substrate further comprises a filling layer disposed on a side of the second substrate far away from the reinforcing layer, the filling layer and the first substrate are arranged in parallel on a side of the second substrate far away from the reinforcing layer, and a projection of the filling layer on the second substrate is located in the single-layer substrate area.
In one embodiment, the material of the filling layer is a material with cushioning property, and preferably, the material of the filling layer is foam or silicone adhesive.
In one embodiment, the cover plate is disposed on a side of the first substrate away from the second substrate, and has a length greater than that of the second substrate, wherein the filling layer and the cover plate are integrally formed.
In one embodiment, the fill layer comprises: the supporting layer is arranged on one side, away from the reinforcing layer, of the second substrate; and the adhesive layer is arranged on one side of the supporting layer, which is far away from the second substrate.
A display device comprising the display panel of any of the above.
The embodiment of the invention provides a display panel and a display device. Wherein the first substrate is disposed on one side of the second substrate, and the length of the first substrate is smaller than that of the second substrate, in other words, the first substrate and the second substrate have a single substrate region in an edge region. The reinforcing layer is arranged in the single-layer area on the side, far away from the first substrate, of the second substrate, stress borne by the single-layer area can be dispersed, the strength of the display panel is improved, the display panel is prevented from being broken in the falling process, and the service life of the display panel is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a display panel according to another embodiment of the invention.
Fig. 3 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
As shown in fig. 1, the display panel includes a first substrate 01 and a second substrate 02. The first substrate 01 is disposed on one side of the second substrate 02, and the length of the first substrate 01 is smaller than that of the second substrate 02, in other words, the first substrate 01 and the second substrate 02 have a stepped structure in an edge region, and the stepped structure can be used for binding circuit materials such as COF or FPC. The display panel further includes a reinforcing layer 03 disposed on a side of the second substrate 02 away from the first substrate 01, in other words, the reinforcing layer 03 is disposed on the stepped structure, and configured to disperse stress applied to the second substrate. The area that first base plate 01 and second base plate 02 contacted is double-deck base plate region, and the second base plate 02 does not be the single-deck base plate region with the area that first base plate 01 contacted, consequently, there is the clearance between single-deck base plate region and the double-deck base plate region to influence display panel's intensity, consequently increased enhancement layer 03 in one side that first base plate 01 was kept away from to second base plate 02, can improve display panel's intensity, prevent display panel and break at the in-process that falls, improve display panel's life.
It is to be understood that the first substrate 01 may be a package substrate, the first substrate 01 may be selected according to actual product requirements, and the specific type of the first substrate 01 is not limited in the present invention.
It is also understood that the second substrate 02 may be a glass substrate having an LTPS film layer and a light emitting film layer, the second substrate 02 may also be a plastic glass substrate, and the like, and the second substrate 02 may be selected according to actual product requirements, and the specific type of the second substrate 02 is not limited in the present invention.
In an embodiment of the invention, a region of the second substrate in contact with the first substrate is a double-layer substrate region, and a region of the second substrate not in contact with the first substrate is a single-layer substrate region, wherein the reinforcing layer is located in the single-layer substrate region. In other words, the projection of the reinforcing layer 03 on the second substrate 02 completely covers the projection of the step structure on the second substrate 02, so that the reinforcing layer 03 can reinforce all regions of the step structure, the strength of all single-layer substrate regions in the falling process is ensured, the breakage in the falling process due to the fact that the reinforcing layer 03 is not correspondingly arranged in part of the regions is prevented, and the service life of the whole display panel is prolonged.
It can be understood that the material of the reinforcing layer 03 may be a high stiffness material, such as silicone adhesive, and the material of the reinforcing layer 03 may be selected according to actual conditions, and the specific material of the reinforcing layer 03 is not limited in the present invention on the premise that the reinforcing layer 03 can improve the strength of the step structure region of the display panel.
It can be further understood that the thickness of the reinforcing layer 03 can be 0.05-1 mm, and the specific thickness of the reinforcing layer 03 is not limited in the invention on the premise that the reinforcing effect of the reinforcing layer 03 can be ensured.
Fig. 2 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
As shown in fig. 2, the reinforcing layer 03 and the second substrate 02 are integrally prepared. In other words, the reinforcing layer 03 may be a portion of the second substrate 02, and the thickness of the second substrate 02 corresponding to the step structure region is increased, so that the strength of the step region can be enhanced, the strength of the display panel can be improved, the display panel is prevented from being broken in the falling process, and the service life of the display panel is prolonged.
It can be understood that the material of the reinforcing layer 03 can be low-temperature polysilicon, or the material of the reinforcing layer 03 can also be an organic glass substrate, and the like, the material of the reinforcing layer 03 can be selected according to actual product requirements, and the specific material of the reinforcing layer 03 is not limited in the invention.
It is to be understood that the reinforcing layer 03 and the second substrate 02 may be integrally formed, or the reinforcing layer 03 may be a separate structure adhered to the second substrate 02, and whether the reinforcing layer 03 is a part of the second substrate 02 may be selected according to actual circumstances, and the specific structure and formation manner of the reinforcing layer 03 are not limited in the present invention on the premise that the reinforcing layer 03 can improve the strength of the single-layer region.
Fig. 3 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
As shown in fig. 3, the display panel may further include a buffer layer 04, wherein the buffer layer 04 is disposed on a side of the second substrate 02 far from the first substrate 01, the buffer layer 04 and the reinforcing layer 03 may be arranged in parallel on a side of the second substrate 02 far from the first substrate 01, the buffer layer 04 and the reinforcing layer 03 may be disposed on the same layer, a projection of the buffer layer 04 on the second substrate 02 and a projection of the reinforcing layer 03 on the second substrate 02 do not overlap, in other words, a projection of the buffer layer on the second substrate is located in a double-layered substrate region. In one implementation, the thickness of the cushioning layer 04 is the same as the thickness of the reinforcement layer 03. The buffer layer 04 can play the cushioning effect, improves the intensity of the display panel which is not provided with the reinforcing layer 03 area, and the buffer layer 04 can improve the flatness of the position where the reinforcing layer 03 is arranged, so that the phenomenon that a gap appears due to the arrangement of the reinforcing layer 03 is prevented, and the overall intensity of the display panel is influenced. It is understood that the material of the buffer layer 04 may be foam. The material of the buffer layer 04 may be selected according to actual requirements, and the specific material of the buffer layer 04 is not limited in the present invention.
Fig. 4 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
As shown in fig. 4, the display panel further includes a filling layer 05 disposed on a side of the second substrate 02 away from the reinforcing layer 03, the filling layer 05 and the reinforcing layer 03 are arranged in parallel on a side of the second substrate 02 away from the reinforcing layer 03, and a projection of the filling layer 05 on the second substrate 02 and a projection of the first substrate 01 on the second substrate 02 do not overlap, in other words, the projection of the filling layer on the second substrate is located in a single-layer substrate region. In other words, the filling layer 05 may be provided in the step structure region. Filling layer 05 can play the effect of support and buffering, owing to set up filling layer 05, there is the clearance to fill in the regional department that can be with display panel individual layer base plate, and can use the material that has elastic property as filling layer 05, enhancement layer 03 and filling layer 05 combined action, not only filled the clearance of individual layer base plate region top, also can disperse the stress that display panel received, consequently, can increase the intensity of the regional department of individual layer base plate, display panel's intensity can be improved, display panel has been prevented more effectively and falling the in-process and breaking, display panel's life is improved.
It can be understood that the material of the filling layer 05 has a cushioning property, and may be foam or silicone adhesive, and the material of the filling layer 05 may be selected, and the specific material of the filling layer 05 is not limited in the present invention on the premise that the filling layer 05 can be ensured to fill the single layer fully.
Fig. 5 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
As shown in fig. 5, the display panel may further include a cover plate 06 disposed on a side of the first substrate 01 away from the second substrate 02, wherein a length of the cover plate 06 is greater than a length of the second substrate 01, in other words. The projection of the cover plate 06 on the second substrate 02 covers the projection of the step structure on the second substrate 02. The filler layer 05 may be made integral with the cover plate 06, in other words, the filler layer 05 may be part of the cover plate 06. Correspond stair structure department with apron 06 and set up the boss structure, this boss structure can fill in stair structure, consequently, can fill the regional department of display panel individual layer base plate has the clearance, consequently can increase the intensity in regional department of individual layer base plate, can improve display panel's intensity, prevents that display panel from falling the in-process and breaking, improves display panel's life.
It is understood that the material of the cover plate 06 may be organic glass, or the material of the cover plate 06 may be PI (polyimide), and the material of the cover plate 06 may be selected, and the specific material of the cover plate 06 is not limited in the present invention.
It is also understood that the material of the filling layer 05 may be organic glass, or the material of the filling layer 05 may be PI (polyimide), and the material of the filling layer 05 may be selected, and the specific material of the filling layer 05 is not limited in the present invention.
It can also be understood that the cover plate 06 and the filling layer 05 may be integrally prepared, or the filling layer 05 may be an independent structure adhered to the cover plate 06, and whether the filling layer 05 is a part of the cover plate 06 may be selected according to actual situations, and on the premise that the filling layer 05 can fully fill a single layer area, the specific structure and formation manner of the filling layer 05 are not limited in the present invention.
Fig. 6 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
As shown in fig. 6, the filling layer 05 may further include a supporting layer 051 and an adhesive layer 052, wherein the supporting layer 051 is disposed on one side of the second substrate 02 far away from the reinforcing layer 03, the supporting layer 051 can support the adhesive layer 052, and the supporting layer 051 can avoid the interference part with the FPC for the special-shaped structure. The adhesive layer 052 may play a role of filling and buffering. The glue material of the glue layer 052 has fluidity and is limited by the space height during glue dispensing, so that the glue overflow phenomenon is easy to occur and the process requirement is very high. Through set up supporting layer 051 in screen body individual layer region, the contact height on adhesive layer 052 and second base plate 02 surface has been increased, make the area of contact between adhesive layer 052 and apron 06 more abundant, and the condition production of excessive glue has been reduced, the technology degree of difficulty has been reduced, when display panel pressurized state, adhesive layer 052 can full play self elasticity, the stress that dispersion display panel received, and also meet the existence of supporting layer 051 occasionally, the bulk strength of display panel has been improved, prevent that display panel from falling the in-process and breaking, improve display panel's life.
It can be understood that the material of the supporting layer 051 may be PET (Polyethylene terephthalate) tape, the material of the supporting layer 051 may be selected, and the specific material of the supporting layer 051 is not limited in the present invention on the premise that the supporting layer 051 can support the adhesive layer 052.
It can also be understood that the material of the adhesive layer 052 may be silicone adhesive, and the material of the adhesive layer 052 may be selected, and the specific material of the adhesive layer 052 is not limited in the present invention on the premise that the adhesive layer 052 can be fully filled with a single layer.
In an embodiment of the present invention, the display device includes the display panel described in any one of the above embodiments, and the display panel includes a first substrate 01 and a second substrate 02. The first substrate 01 is disposed on one side of the second substrate 02, and the length of the first substrate 01 is smaller than that of the second substrate 02, in other words, the first substrate 01 and the second substrate 02 have a stepped structure in an edge region, and the stepped structure can be used for binding circuit materials such as COF or FPC. The display panel further includes a reinforcement layer 03 disposed on a side of the second substrate 02 away from the first substrate 01, in other words, the reinforcement layer 03 is disposed on the stepped structure. The area that first base plate 01 and second base plate 02 contacted is double-deck base plate region, and the stair structure region is single-deck base plate region, consequently, has the clearance between single-deck base plate region and the double-deck base plate region to influence display panel's intensity, consequently increased enhancement layer 03 in one side that second base plate 02 kept away from first base plate 01, can improve display panel's intensity, prevent that display panel from breaking at the in-process that falls, improve display panel's life.
It is understood that the display device can be a mobile phone, a computer, a vehicle-mounted device, or the like. The type of the display device may be various, and the present invention does not limit the specific type of the display device.
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.

Claims (11)

1. A display panel, comprising:
a first substrate;
the second substrate is arranged on one side of the first substrate, wherein the length of the first substrate is smaller than that of the second substrate, the area of the second substrate, which is in contact with the first substrate, is a double-layer substrate area, and the area of the second substrate, which is not in contact with the first substrate, is a single-layer substrate area;
a reinforcing layer disposed on a side of the second substrate away from the first substrate, configured to disperse stress borne by the second substrate; and
the buffer layer is arranged on one side, away from the first substrate, of the second substrate, the buffer layer and the reinforcing layer are arranged in parallel on one side, away from the first substrate, of the second substrate, and the projection of the buffer layer on the second substrate is located in the double-layer substrate area; wherein the thickness of the buffer layer is the same as the thickness of the reinforcing layer;
the projection of the reinforcing layer on the second substrate is at least located in the single-layer substrate area.
2. The display panel of claim 1, wherein the material of the reinforcing layer is silicone adhesive.
3. The display panel according to claim 2, wherein the reinforcing layer has a thickness of 0.05 to 1 mm.
4. The display panel according to claim 1, wherein the reinforcing layer and the second substrate are integrally prepared.
5. The display panel according to claim 4, wherein the second substrate is made of glass.
6. The display panel according to claim 1, further comprising a filler layer disposed on a side of the second substrate away from the reinforcement layer, wherein the filler layer and the first substrate are juxtaposed on a side of the second substrate away from the reinforcement layer, and a projection of the filler layer on the second substrate is located in the single-layer substrate area.
7. The display panel according to claim 6, wherein a material of the filling layer is a material having a cushioning property.
8. The display panel according to claim 7, wherein the material of the filling layer is foam or silicone adhesive.
9. The display panel according to claim 6, further comprising a cover plate disposed on a side of the first substrate away from the second substrate, the cover plate having a length greater than that of the second substrate, wherein the filling layer and the cover plate are integrally formed.
10. The display panel according to claim 6, wherein the filling layer comprises:
the supporting layer is arranged on one side, away from the reinforcing layer, of the second substrate; and
and the adhesive layer is arranged on one side of the supporting layer, which is far away from the second substrate.
11. A display device comprising the display panel according to any one of claims 1 to 10.
CN202010121030.3A 2020-02-26 2020-02-26 Display panel and display device Active CN111179778B (en)

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CN110910762A (en) * 2019-11-06 2020-03-24 深圳市华星光电半导体显示技术有限公司 Manufacturing method of flexible display panel

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CN205485173U (en) * 2015-12-22 2016-08-17 武汉天马微电子有限公司 Display module
CN108448010B (en) * 2018-05-11 2021-04-23 云谷（固安）科技有限公司 Display panel and display terminal
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Publication number Priority date Publication date Assignee Title
CN105551377A (en) * 2015-12-28 2016-05-04 天马微电子股份有限公司 Flexible display panel, manufacturing method thereof and display device
CN206848635U (en) * 2017-05-15 2018-01-05 信利光电股份有限公司 A kind of display panel and display device
WO2019143140A1 (en) * 2018-01-19 2019-07-25 엘지이노텍 주식회사 Thermoelectric element
CN208110199U (en) * 2018-05-08 2018-11-16 京东方科技集团股份有限公司 Display panel and display device
CN110429108A (en) * 2019-07-08 2019-11-08 武汉华星光电半导体显示技术有限公司 Display module, display device and preparation method
CN110910762A (en) * 2019-11-06 2020-03-24 深圳市华星光电半导体显示技术有限公司 Manufacturing method of flexible display panel

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