CN113707032A - Flexible display module and mobile terminal - Google Patents
Flexible display module and mobile terminal Download PDFInfo
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- CN113707032A CN113707032A CN202111063303.4A CN202111063303A CN113707032A CN 113707032 A CN113707032 A CN 113707032A CN 202111063303 A CN202111063303 A CN 202111063303A CN 113707032 A CN113707032 A CN 113707032A
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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
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- 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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Abstract
The application provides a flexible display module and a mobile terminal; the flexible display module comprises a flexible display panel, wherein the flexible display panel comprises a first plane part, a second plane part and a bending part for connecting the first plane part and the second plane part, the second plane part is bent to one side, away from a light emitting side, of the first plane part through the bending part, a protective layer is arranged on the flexible display panel, the protective layer covers the bending part and part of the first plane part and part of the second plane part, the protective layer comprises a plurality of protective units, and the plurality of protective units are arranged at intervals; this application is the interval setting through a plurality of protection units with the protective layer, makes the stress in the kink release in space department, reduces the stress concentration of kink and first plane portion, the second plane portion juncture to effectively reduce the protective layer that leads to because of stress concentration and drop and then arouse the circuit risk of rolling over in the kink.
Description
Technical Field
The application relates to the field of flexible display screens, in particular to a flexible display module and a mobile terminal.
Background
Flexible foldable products are the development trend of current small-size panel, and at present, when carrying out terminal end bending (Pad binding) process, need set up UV glue at the flexible display panel's binding end surface usually to play better guard action to binding the end.
However, the existing UV glue setting method mostly adopts full-surface glue dispensing, and when the flexible display panel is bent by the glue dispensing method, stress concentration is easily generated at the starting point position of the glue dispensing, so that the UV glue is peeled off to further cause the problem of line breakage in the terminal area of the flexible display panel.
Disclosure of Invention
The application provides a flexible display module and mobile terminal to improve the technical problem that the UV that binds of current flexible display panel and serve and drop easily and the interior circuit of terminal zone that leads to is creased.
In order to solve the technical problem, the technical scheme provided by the application is as follows:
the application provides a flexible display module assembly, include:
the flexible display panel comprises a first plane part, a second plane part and a bending part for connecting the first plane part and the second plane part, wherein the second plane part is bent to one side of the first plane part, which is far away from the light emitting side, through the bending part;
the protective layer is arranged on the flexible display panel and covers the bending part and part of the first plane part and part of the second plane part;
the protective layer comprises a plurality of protective units which are arranged at intervals.
In the flexible display module of the present application, the protective layer includes a first adhesive portion extending to the first planar portion, a second adhesive portion located on the bending portion, and a third adhesive portion extending to the second planar portion;
the arrangement density of the protection units in the first glue part, the second glue part and the third glue part is different.
In the flexible display module of this application, the density of arranging of a plurality of protection units in first gluey portion and the third gluey portion is greater than the density of arranging of a plurality of protection units in the second gluey portion.
In the flexible display module of this application, first gluey portion includes a plurality of first protection units the second is glued the portion extremely on the direction of first gluey portion, it is a plurality of the density of arranging of first protection unit increases gradually.
In the flexible display module of this application, first gluey portion includes a plurality of first protection units the second is glued the portion extremely in the direction of first gluey portion, it is a plurality of the area of first protection unit increases gradually.
In the flexible display module, the distance between every two adjacent first protection units is a first distance in a first direction, and the distance between every two adjacent first protection units is a second distance in a second direction;
the first distance is smaller than the second distance, the first direction is from the first glue portion to the second glue portion, and the second direction is perpendicular to the first direction.
In the flexible display module of this application, the second is glued the portion and is included a plurality of second protection units, and is a plurality of the area of second protection unit is the same and be in evenly arrange on the kink.
In the flexible display module of this application, the third is glued the portion and is included a plurality of third protection units the second is glued the portion and is glued the direction of portion to protecting the third, and is a plurality of the density of arranging of third protection unit increases gradually.
In the flexible display module of this application, the third is glued the portion and is included a plurality of third protection units the second is glued the portion extremely in the direction of portion is glued to the third, the area crescent of third protection unit.
The application also provides a mobile terminal, including terminal main part and above-mentioned flexible display module assembly, flexible display module assembly with the terminal main part combination is as an organic whole.
Has the advantages that: this application is through the mode that the mode replacement that puts some glue for the whole face in the terminal area in traditional flexible display module is the mode that net face was glued, and a plurality of protection units of protective layer are the interval setting promptly, make the stress in the kink can release in space department, reduce the stress concentration of kink and first plane portion, the second plane portion juncture to effectively reduce because of the protective layer that stress concentration leads to drops and then arouses the circuit risk of rolling over wounded in the kink.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of an overall planar structure of a flexible display module according to the present application;
FIG. 2 is a schematic diagram of a film structure of a flexible display module according to the present application;
FIG. 3 is a schematic view of a first distribution structure of the protective layer described herein;
FIG. 4 is a schematic view of a second distribution structure of the protective layer described herein;
FIG. 5 is a schematic view of a third distribution of protective layers according to the present application;
FIG. 6 is a schematic view of a fourth distribution of protective layers according to the present application;
FIG. 7 is a schematic view of a fifth distribution structure of the protective layer of the present application;
FIG. 8 is a schematic view of a sixth distribution structure of the protective layer described herein;
fig. 9 is a schematic diagram of a seventh distribution structure of the protective layer described in the present application.
Description of reference numerals:
the flexible display module 100, the flexible display panel 110, the first planar portion 111, the second planar portion 112, the bending portion 113, the protective layer 120, the first glue portion 121, the first protection unit 1211, the second glue portion 122, the second protection unit 1221, the third glue portion 123, the third protection unit 1231, the polarizer 130, the optical glue layer 140, the flexible cover plate 150, and the flexible circuit board 160.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
At present, when a Pad bending process is performed, UV glue is generally required to be disposed on the surface of the bonding end of the flexible display panel to protect the bonding end well. However, the existing UV glue setting method mostly adopts full-surface glue dispensing, and when the flexible display panel is bent by the glue dispensing method, stress concentration is easily generated at the starting point position of the glue dispensing, so that the UV glue is peeled off to further cause the problem of line breakage in the terminal area of the flexible display panel. The present application proposes the following solutions based on the above technical problems.
Referring to fig. 1 to 9, the present application provides a flexible display module 100, including:
the flexible display panel 110 includes a first flat part 111, a second flat part 112, and a bending part 113 connecting the first flat part 111 and the second flat part 112, wherein the second flat part 112 is bent to a side of the first flat part 111 away from the light emitting side by the bending part 113;
a protection layer 120 disposed on the flexible display panel 110, wherein the protection layer 120 covers the bending portion 113 and a portion of the first plane portion 111 and a portion of the second plane portion 112;
the protection layer 120 includes a plurality of protection units, and the protection units are arranged at intervals.
In the present embodiment, the whole surface dispensing manner in the terminal area in the conventional flexible display module 100 is replaced by the mesh surface dispensing manner, that is, the plurality of protection units of the protection layer 120 are arranged at intervals, so that the stress in the bending portion 113 can be released at the gap, and the stress concentration at the junction between the bending portion 113 and the first and second flat portions 111 and 112 is reduced, thereby effectively reducing the risk of line damage in the bending portion 113 caused by the falling off of the protection layer 120 due to the stress concentration.
In this embodiment, the flexible display panel 110 may include an OLED display panel, a Mini-LED display panel, or a Micro-LED display panel.
In this embodiment, the bending portion 113 corresponds to a terminal bonding area in a conventional flexible display film module, that is, a terminal circuit (not shown) is disposed in the bending portion 113, and an extending direction of the terminal circuit is consistent with a direction from the first plane portion 111 to the bending portion 113 and a direction from the bending portion 113 to the second plane portion 112.
In this embodiment, please refer to fig. 2, fig. 2 is a schematic diagram of a film structure of the flexible display module 100 according to the present application, and the flexible display module 100 may further include a polarizer 130 disposed on the first plane portion 111, an optical adhesive layer 140 disposed on the polarizer 130, and a flexible cover plate 150 disposed on the optical adhesive layer 140.
In this embodiment, the flexible display module 100 further includes a flexible circuit board 160 disposed on a side of the second plane portion 112 away from the bending portion 113, the flexible circuit board 160 is fixedly connected and electrically connected to the second plane portion 112, and an external electrical signal is transmitted into the second plane portion 112 through the flexible circuit board 160.
In this embodiment, the polarizer 130 may be formed by compounding a pressure sensitive adhesive with a film material such as a PVA film (polyvinyl alcohol film), a TAC film (triacetyl cellulose film), a PET film (polyethylene terephthalate film), and the like.
In this embodiment, the Optical adhesive layer 140 may be formed by curing a liquid Optical Clear adhesive (OCR), the curing method may be thermal curing, ultraviolet curing or other corresponding curing methods, and the filling method of the liquid OCR includes but is not limited to dipping, siphoning, injection molding, attaching, inkjet printing, etc.
In this embodiment, the flexible cover plate 150 may be a composite structure of an inorganic film layer (transparent glass material) and a transparent organic filling layer. The material of the transparent organic filling layer can be any one or more of liquid optical transparent adhesive, organic silicon rubber, acrylic resin, unsaturated polyester, polyurethane, epoxy resin and the like.
In this embodiment, the protection layer 120 may be made of a UV glue material.
In this embodiment, the protective layer 120 may be made of a circuit board component fixing adhesive, such as a dealcoholization type room temperature vulcanized silicone rubber material.
In this embodiment, please refer to fig. 3, fig. 3 is a schematic diagram of a first distribution structure of the protection layer 120 according to the present application, and a plurality of protection units in the protection layer 120 may be uniformly distributed.
In this embodiment, the plurality of protection units in the protection layer 120 may be equally arranged in shape or area.
The technical solution of the present application will now be described with reference to specific embodiments. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 4 to 9, in the flexible display module of the present application, the protection layer 120 includes a first glue portion 121 extending to the first plane portion 111, a second glue portion 122 located on the bending portion 113, and a third glue portion 123 extending to the second plane portion 112, and the arrangement densities of the plurality of protection units in the first glue portion 121, the second glue portion 122, and the third glue portion 123 are different.
Through the arrangement, the protective layer 120 at different positions can have different distribution densities of the protective units, so that the protective effect on the terminal lines and the stress release effect on the bent portions 113 are better considered, and the protective layer 120 has higher comprehensive performance.
In this embodiment, the shape of the protection unit may be a rectangle, a square, a circle, a diamond, or other irregular shape.
In this embodiment, the shapes and areas of the plurality of protection units may be different from each other.
Referring to fig. 4, fig. 4 is a schematic diagram of a second distribution structure of the protection layer 120 in the present application, in the flexible display module of the present application, the distribution density of the plurality of protection units in the first glue portion 121 and the third glue portion 123 is greater than the distribution density of the plurality of protection units in the second glue portion 122.
Because first gluey portion 121 and third gluey portion 123 are in the juncture position of kink 113 and first plane portion 111, second plane portion 112 respectively, therefore the stress that receives is bigger, and this embodiment can make the bonding strength between first gluey portion 121 and first plane portion 111, second gluey portion 122 and the second plane portion 112 higher through above setting to can bear bigger bending stress, the guard action to terminal circuit is more stable.
Referring to fig. 5, fig. 5 is a schematic view illustrating a third distribution structure of the protection layer 120 in the present application, in the flexible display module in the present application, the first glue portion 121 includes a plurality of first protection units 1211, and the arrangement density of the plurality of first protection units 1211 gradually increases in a direction from the second glue portion 122 to the first glue portion 121.
Since the stress in the bending portion 113 is mainly released at the initial position of the protection layer 120, the stress at the initial position of the protection layer 120 is larger, and by the above arrangement, the arrangement of the first protection units 1211 in the protection layer 120 at the initial position can be more compact, which not only improves the bonding strength between the protection layer 120 at the initial position and the first plane portion 111, but also increases the number of gaps for releasing the stress, thereby improving the stress releasing capability and further reducing the risk of breaking the terminal line.
Referring to fig. 6, fig. 6 is a schematic view illustrating a fourth distribution structure of the passivation layer 120 in the present application, in the flexible display module in the present application, the first glue portion 121 includes a plurality of first protection units 1211, and an area of the plurality of first protection units 1211 gradually increases in a direction from the second glue portion 122 to the first glue portion 121. In this embodiment, by setting the areas of the plurality of first protection units 1211 to be gradually increased along the direction from the second glue portion 122 to the first glue portion 121, the bonding area between the initial position of the protection layer 120 and the first plane portion 111 can be increased, so as to increase the bonding strength between the initial position of the protection layer 120 and the first plane portion 111, reduce the possibility that the protection layer 120 falls off from the first plane portion 111, and further reduce the risk of the lower sub-line fracture.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a fifth distribution structure of the passivation layer 120 of the present application, in the flexible display module of the present application, a distance between two adjacent first protection units 1211 in the first direction is a first distance d1, and a distance between two adjacent first protection units 1211 in the second direction is a second distance d 2. The first distance d1 is smaller than the second distance d2, the first direction is a direction from the first glue portion 121 to the second glue portion 122, and the second direction is perpendicular to the first direction.
Because the stress direction of the terminal circuit is the same as the direction from the first plane part 111 to the bending part 113 (i.e. the first direction), the distance between two adjacent first units in the first direction is set to be smaller, so that the plurality of first protection units 1211 in the first glue part 121 can be arranged more tightly in the first direction, and thus, the terminal circuit has higher bonding strength, can bear greater stress, and has stronger protection effect on the terminal circuit.
Referring to fig. 7, in the flexible display module of the present application, the second adhesive portion 122 includes a plurality of second protection units 1221, and the second protection units 1221 have the same area and are uniformly arranged on the bending portion 113.
In this embodiment, the second adhesive portion 122 is located on the bending portion 113 and away from the starting point and the ending point of the protection layer 120, so that the stress distribution in the second adhesive portion 122 is relatively uniform. In this embodiment, the plurality of second protection units 1221 in the second glue portion 122 are arranged to have the same area and are uniformly distributed, so that the bending portion 113 can be well protected, the glue dispensing process of the second glue portion 122 can be simplified, and the difficulty of the glue dispensing process of the second glue portion 122 can be reduced.
Referring to fig. 8, fig. 8 is a schematic view illustrating a sixth distribution structure of the protection layer 120 of the present application, in the flexible display module of the present application, the third glue portion 123 includes a plurality of third protection units 1231, and the distribution density of the plurality of third protection units 1231 is gradually increased in a direction from the second glue portion 122 to the third glue portion 123.
In this embodiment, since the stress in the protection layer 120 is mainly concentrated at the starting position and the end position of the protection layer 120, the third protection units 1231 in the protection layer 120 at the end position can be arranged more closely by the above arrangement in this embodiment, which not only improves the bonding strength between the protection layer 120 and the second planar portion 112 at the end position, but also increases the number of gaps for releasing the stress, thereby improving the stress releasing capability and further reducing the risk of breaking the terminal line.
Referring to fig. 9, fig. 9 is a schematic view illustrating a seventh distribution structure of the protection layer 120 of the present application, in the flexible display module of the present application, the third glue portion 123 includes a plurality of third protection units 1231, and an area of the third protection units 1231 is gradually increased in a direction from the second glue portion 122 to the third glue portion 123. In this embodiment, by setting the areas of the plurality of third protection units 1231 to be gradually increased along the direction from the second glue portion 122 to the third glue portion 123, the bonding area between the end position of the protection layer 120 and the second flat portion 112 can be increased, so as to increase the bonding strength between the protection layer 120 and the second flat portion 112 at the end position, reduce the possibility that the protection layer 120 falls off from the second flat portion 112, and further reduce the risk of the lower line fracture.
The embodiment of the application further provides a mobile terminal, the mobile terminal comprises a terminal main body and the flexible display module 100, and the flexible display module 100 and the terminal main body are combined into a whole. In this embodiment, the mobile terminal may be an intelligent electronic device such as a mobile phone, a tablet computer, a notebook computer, and an intelligent electronic watch.
The mode of dispensing the whole surface in the terminal area in the conventional flexible display module 100 is replaced by the mode of dispensing the mesh surface, that is, a plurality of protection units of the protection layer 120 are arranged at intervals, so that the stress in the bending part 113 can be released at the gap, and the stress concentration at the junction of the bending part 113 and the first and second flat parts 111 and 112 is reduced, thereby effectively reducing the risk of breaking the circuit in the bending part 113 due to the falling of the protection layer 120 caused by the stress concentration. And WHP212030CN, this application still through to a plurality of protection units in the protective layer 120 carry out differentiation design (aspect such as arrangement area, arrangement density and arrangement interval) in different positions, make protective layer 120 all can play good protection effect in different positions, further reduce terminal line fracture risk.
The flexible display module and the mobile terminal provided by the embodiment of the present application are described in detail above, a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand 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 (10)
1. The utility model provides a flexible display module assembly which characterized in that includes:
the flexible display panel comprises a first plane part, a second plane part and a bending part for connecting the first plane part and the second plane part, wherein the second plane part is bent to one side of the first plane part, which is far away from the light emitting side, through the bending part;
the protective layer is arranged on the flexible display panel and covers the bending part and part of the first plane part and part of the second plane part;
the protective layer comprises a plurality of protective units which are arranged at intervals.
2. The flexible display module according to claim 1, wherein the protection layer comprises a first glue portion extending to the first plane portion, a second glue portion located on the bending portion, and a third glue portion extending to the second plane portion;
the arrangement density of the protection units in the first glue part, the second glue part and the third glue part is different.
3. The flexible display module according to claim 2, wherein the arrangement density of the plurality of protection units in the first glue portion and the third glue portion is greater than the arrangement density of the plurality of protection units in the second glue portion.
4. The flexible display module according to claim 2, wherein the first glue portion comprises a plurality of first protection units, and the arrangement density of the first protection units is gradually increased in a direction from the second glue portion to the first glue portion.
5. The flexible display module according to claim 2, wherein the first adhesive portion comprises a plurality of first protection units, and the area of the plurality of first protection units is gradually increased in a direction from the second adhesive portion to the first adhesive portion.
6. The flexible display module according to claim 4 or 5, wherein in the first direction, the distance between two adjacent first protection units is a first distance, and in the second direction, the distance between two adjacent first protection units is a second distance;
the first distance is smaller than the second distance, the first direction is from the first glue portion to the second glue portion, and the second direction is perpendicular to the first direction.
7. The flexible display module according to claim 2, wherein the second adhesive portion comprises a plurality of second protection units, and the second protection units have the same area and are uniformly arranged on the bending portion.
8. The flexible display module according to claim 2, wherein the third adhesive portion comprises a plurality of third protection units, and the arrangement density of the plurality of third protection units is gradually increased in a direction from the second adhesive portion to the third adhesive portion.
9. The flexible display module according to claim 2, wherein the third adhesive portion comprises a plurality of third protection units, and the area of the third protection units is gradually increased in the direction from the second adhesive portion to the third adhesive portion.
10. A mobile terminal, characterized by comprising a terminal body and the flexible display module according to any one of claims 1 to 9, wherein the flexible display module and the terminal body are combined into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111063303.4A CN113707032B (en) | 2021-09-10 | 2021-09-10 | Flexible display module and mobile terminal |
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| CN202111063303.4A CN113707032B (en) | 2021-09-10 | 2021-09-10 | Flexible display module and mobile terminal |
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| CN113707032A true CN113707032A (en) | 2021-11-26 |
| CN113707032B CN113707032B (en) | 2023-06-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114038339A (en) * | 2021-12-09 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
| CN114360381A (en) * | 2022-01-07 | 2022-04-15 | 深圳市华星光电半导体显示技术有限公司 | Flexible display module and mobile terminal |
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| CN113140155A (en) * | 2020-01-20 | 2021-07-20 | 华为技术有限公司 | Electronic device |
| CN113140156A (en) * | 2020-01-20 | 2021-07-20 | 华为技术有限公司 | Electronic device |
| CN111105718A (en) * | 2020-02-20 | 2020-05-05 | 京东方科技集团股份有限公司 | Flexible display module, preparation method thereof and folding display device |
| US20210242426A1 (en) * | 2020-12-30 | 2021-08-05 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel and display device |
| CN112927625A (en) * | 2021-03-27 | 2021-06-08 | 武汉华星光电半导体显示技术有限公司 | Supporting plate and folding display device |
| CN113035069A (en) * | 2021-03-30 | 2021-06-25 | 云谷（固安）科技有限公司 | Display module and display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038339A (en) * | 2021-12-09 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
| CN114038339B (en) * | 2021-12-09 | 2023-01-10 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
| CN114360381A (en) * | 2022-01-07 | 2022-04-15 | 深圳市华星光电半导体显示技术有限公司 | Flexible display module and mobile terminal |
| CN114360381B (en) * | 2022-01-07 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | Flexible display module and mobile terminal |
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