CN210110214U - Flexible display module, flexible display device and electronic equipment - Google Patents

Flexible display module, flexible display device and electronic equipment Download PDF

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Publication number
CN210110214U
CN210110214U CN201921117727.2U CN201921117727U CN210110214U CN 210110214 U CN210110214 U CN 210110214U CN 201921117727 U CN201921117727 U CN 201921117727U CN 210110214 U CN210110214 U CN 210110214U
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China
Prior art keywords
flexible display
film layer
rete
buffer
display module
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Expired - Fee Related
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CN201921117727.2U
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Chinese (zh)
Inventor
李俊杰
甘舟
熊鹏宇
施文杰
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Incoflex Semiconductor Technology Ltd
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Incoflex Semiconductor Technology Ltd
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Abstract

The embodiment of the utility model provides a flexible display module assembly, flexible display device and electronic equipment are about. This flexible display module assembly includes: a flexible display panel having a bending region; the buffer film layer is positioned on the lower surface of the flexible display panel and comprises a first buffer sub film layer and a second buffer sub film layer which are positioned in the orthographic projection area of the bending area and separated from the flexible display panel; the tough rete is located buffer film layer lower surface, including adjacent first tough rete and second tough rete, the at least part of first tough rete and second tough rete is located bend zone's orthographic projection region and with first buffer sub rete and second buffer sub rete are fixed respectively, first tough rete and second tough rete are located respectively the terminal surface looks butt of the part of bend zone. This embodiment can promote flexible display module's anti bending performance, impact resistance, can avoid flexible display module to damage at the in-process of buckling to a certain extent.

Description

Flexible display module, flexible display device and electronic equipment
Technical Field
The embodiment of the utility model provides a relate to and show technical field, especially relate to a flexible display module assembly, flexible display device and electronic equipment.
Background
According to the technical scheme, the flexible display screen bending area is fixed by the bonding material between two adjacent laminates, and during bending, the buffer film layer and the toughness film layer in the bending area can generate great tensile force on the flexible display panel, so that the module is damaged in the bending process more easily relative to a single film layer structure, and the shock resistance of the flexible display screen can be reduced without arranging the buffer film layer and the toughness film layer in the bending area.
Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.
It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a flexible display module assembly, flexible display device and electronic equipment, and then overcome one or more problems that lead to because the restriction of correlation technique and defect to a certain extent at least.
According to the utility model discloses a first aspect of the embodiment provides one kind, include:
a flexible display panel having a bending region;
the buffer film layer is positioned on the lower surface of the flexible display panel and comprises a first buffer sub film layer and a second buffer sub film layer which are positioned in the orthographic projection area of the bending area and separated from the flexible display panel;
the tough rete is located buffer film layer lower surface, including adjacent first tough rete and second tough rete, the at least part of first tough rete and second tough rete is located bend zone's orthographic projection region and with first buffer sub rete and second buffer sub rete are fixed respectively, first tough rete and second tough rete are located respectively the terminal surface looks butt of the part of bend zone.
In an embodiment of the present invention, the flexible film layer includes a flexible metal film layer.
In an embodiment of the present invention, the metal includes aluminum and/or steel.
In an embodiment of the present invention, the thickness of the flexible film is less than or equal to 1 mm.
The utility model discloses an in the embodiment, still include: a support film layer located between the flexible display panel and the buffer film layer.
In an embodiment of the present invention, the supporting film layer is a polymer organic film layer.
In an embodiment of the present invention, the buffer film layer includes a foam material film layer; the first buffer sub-film layer and the second buffer sub-film layer are abutted in the orthographic projection area.
In an embodiment of the present invention, the buffer film layer includes a third buffer sub-film layer and a fourth buffer sub-film layer located at two sides of the orthographic projection area of the bending area;
wherein, a preset gap is arranged between the first buffer sub-film layer and the third buffer sub-film layer; the second buffer sub-film layer and the fourth buffer sub-film layer are spaced by a preset gap.
According to the utility model discloses the second aspect of the embodiment provides a flexible display device, including any one above-mentioned embodiment flexible display module assembly.
According to a third aspect of the embodiments of the present invention, there is provided an electronic device including the above-mentioned flexible display device.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the embodiment of the utility model provides an in, through above-mentioned flexible display module assembly, flexible display device and electronic equipment, on the one hand, can promote flexible display module assembly's anti bending performance, impact resistance, on the other hand can avoid flexible display module assembly to damage at the in-process of buckling to a certain extent.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic diagram illustrating a flat state of a flexible display module according to an exemplary embodiment of the present invention;
fig. 2 shows a schematic diagram of a bending state of the flexible display module according to an exemplary embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In the flexible display module assembly, adopt bonding material to fix between two adjacent stromatolites, during buckling, bonding material can produce the pulling force to the stromatolite for the module is whole to damage at the in-process of buckling more easily for single membrane layer structure.
The utility model discloses an inventor has found that because the bonding material between the stromatolite produces the pulling force to the stromatolite, just leaded to the module whole to damage this between the two the antecedent because of the consequence after in-process is buckled for single membranous layer structure more easily, obtain through the research the utility model discloses a can solve above-mentioned technical problem's technical scheme.
In the present exemplary embodiment, a flexible display module is first provided. Referring to fig. 1 to 2, the flexible display module may include: a flexible display panel 100, a buffer film layer 200, and a flexible film layer such as a metal flexible film layer 300. The flexible display panel 100 has a bending region 500. The buffer film layer 200 is located on the lower surface of the flexible display panel 100, and includes a first buffer sub-film layer 201 and a second buffer sub-film layer 202 located in the orthographic projection area of the bending area 500 and separated from the flexible display panel 100. The tough film layer 300 is located on the lower surface of the buffer film layer 200, and includes a first tough film layer 301 and a second tough film layer 302 which are adjacent to each other, at least a part of the first tough film layer 301 and the second tough film layer 302 is located in an orthographic projection area of the bending region 500 and is fixed to the first buffer sub-film layer 201 and the second buffer sub-film layer 202 respectively, and the first tough film layer 301 and the second tough film layer 302 are located in contact with end faces of the part of the bending region 500 respectively.
Through the flexible display module, on one hand, the first buffer sub-film layer 201 and the second buffer sub-film layer 202 which are separated from each other can provide support and shielding for the flexible display panel 100 when the display module is in a flat state, so that the shock resistance of the display module is improved; on the other hand, because first buffering sublayer 201 and second buffering sublayer 202 break away from with flexible display panel 100, consequently, when flexible display module assembly is buckling, first buffering sublayer 201 and second buffering sublayer 202 and flexible display panel 100 can not produce interact's pulling force in bending zone 500, and then can promote the anti bending performance of screen, can avoid flexible display module assembly to damage at the in-process of buckling to a certain extent.
The first buffer sub-film layer 201 and the second buffer sub-film layer 202 in the orthographic projection area of the bending area 500 are separated from the flexible display panel 100, i.e., no bonding material or other mechanical methods are used for connection. The bending area 500 may be located in the display area, the non-display area, the display area, or the non-display area. At least a portion of the first and second ductile film layers 301 and 302 are fixed to the first and second buffer sub-film layers, respectively, by an Adhesive bonding, such as an OCA (optical Clear Adhesive) or other Adhesive bonding.
In the following, taking the bending region 500 located in the non-display region as an example, each part of the flexible display module in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 2.
In one embodiment, the malleable film layer may comprise a metallic malleable film layer 300. Because the modulus of the toughness rete that the metal was made is greater than the modulus of flexible display panel 100, and then metal toughness rete 300 is more difficult for taking place deformation for flexible display panel 100 is whole, and metal toughness rete 300 can play certain supporting role to flexible display module to be favorable to the laminating technology of flexible display module and complete machine, the yield when improving flexible display module and complete machine laminating. Simultaneously, this metal toughness rete 300 still has certain toughness and ductility, can produce the bending under the external effect to adapt to flexible display module's shape, and difficult emergence fracture when buckling.
In one embodiment, the material of the metal flexible film 300 may include metal, specifically, the metal material may be aluminum and/or steel, for example, in one specific example, the material of the metal flexible film 300 may be selected from SUS301 stainless steel or SUS305 stainless steel, stainless steel has good ductility and high hardness, can support the flexible display module and is not easy to break when bent, and of course, other similar materials or materials satisfying the condition of the metal flexible film 300 may be possible and may be set according to the requirement.
In one embodiment, the thickness of the metal ductile film layer 300 is less than or equal to 1mm, so as to avoid the metal sheet from being broken when being bent due to the excessive thickness. Of course, in an actual application scenario, the thickness of the metal flexible film 300 may be adjusted according to the material of the metal flexible film 300, the material of the buffer film 200, the type of the flexible display panel 100, and other factors, and will not be described herein again.
In one embodiment, further comprising: support the rete, support the rete and be located flexible display panel 100 with between buffer film layer 200, because flexible display panel 100 is soft, the thin characteristic of matter, the stress concentration phenomenon appears easily in bending zone 500 especially bending line position flexible display panel 100 during buckling, supports the rete and can provide supporting role to flexible display panel 100 to disperse the stress (tensile stress or compressive stress) that flexible display module group received at the in-process of buckling better, thereby reach the guard action.
In one embodiment, the supporting film layer is a polymer organic film layer, and plays a structural supporting role on the touch screen. In the present embodiment, the material of the supporting film layer includes, but is not limited to, Polyimide (PI), Polyamide (PA), polyethylene terephthalate (PET), and polymethyl methacrylate (PMMA). The stress (tensile stress or compressive stress) that flexible display module received at the in-process of buckling can be dispersed better to the setting of supporting the rete, and the structural support to flexible display panel 100 can also be realized to the rete that supports the rete and can adopt other suitable materials. In addition, the supporting film layer may be omitted if other structures of the display module have sufficient supporting function.
In one embodiment, the buffer film layer 200 includes a foam material film layer, and the first buffer sub-film layer 201 and the second buffer sub-film layer 202 abut at the orthographic projection area. First buffering rete 201 and second buffering rete 202 are connected in metal toughness rete 300, and the alternate segregation, can provide support and shelter from for flexible display panel 100 when display module assembly exhibition flat state like this, and first buffering rete 201 and second buffering rete 202 can alternate segregation when display module assembly is in the state of buckling, do not produce stress to flexible display panel 100, and then have promoted display module assembly's anti bending property.
In one embodiment, the buffer film layer 200 includes a third buffer sub-film layer 203 and a fourth buffer sub-film layer 204 located at two sides of the orthographic projection area of the bending area 500, wherein a predetermined gap is formed between the first buffer sub-film layer 201 and the third buffer sub-film layer 203; the second buffer sub-film layer 202 and the fourth buffer sub-film layer 204 are separated by a predetermined gap. The clearance sets up and has avoided buffer film layer 200 to take place deformation and produce stress when buckling for difficult flexible display module assembly that causes damages in the process of buckling.
According to the utility model discloses the second aspect of the embodiment provides a flexible display device, including any one above-mentioned embodiment flexible display module assembly.
According to a third aspect of the embodiments of the present invention, there is provided an electronic device including the above-mentioned flexible display device. Specifically, the electronic device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Through the flexible display module, the flexible display device and the electronic equipment, on one hand, the first buffer sub-film layer 201 and the second buffer sub-film layer 202 which are separated from each other can provide support and shielding for the flexible display panel 100 when the display module is in a flat state, so that the shock resistance of the display module is improved; on the other hand, because first buffering sublayer 201 and second buffering sublayer 202 break away from with flexible display panel 100, consequently, when flexible display module assembly is buckling, first buffering sublayer 201 and second buffering sublayer 202 and flexible display panel 100 can not produce interact's pulling force in bending zone 500, and then can promote the anti bending performance of screen, can avoid flexible display module assembly to damage at the in-process of buckling to a certain extent.
It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship relative to that shown in the drawings, merely for the purpose of describing embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (10)

1. The utility model provides a flexible display module assembly which characterized in that includes:
a flexible display panel having a bending region;
the buffer film layer is positioned on the lower surface of the flexible display panel and comprises a first buffer sub film layer and a second buffer sub film layer which are positioned in the orthographic projection area of the bending area and separated from the flexible display panel;
the tough rete is located buffer film layer lower surface, including adjacent first tough rete and second tough rete, the at least part of first tough rete and second tough rete is located bend zone's orthographic projection region and with first buffer sub rete and second buffer sub rete are fixed respectively, first tough rete and second tough rete are located respectively the terminal surface looks butt of the part of bend zone.
2. The flexible display module of claim 1, wherein the flexible film layer comprises a metal flexible film layer.
3. The flexible display module of claim 2, wherein the metal comprises aluminum and/or steel.
4. The flexible display module of claim 3, wherein the thickness of the flexible film layer is less than or equal to 1 mm.
5. The flexible display module of any one of claims 1-4, further comprising:
a support film layer located between the flexible display panel and the buffer film layer.
6. The flexible display module of claim 5, wherein the support film is a polymer organic film.
7. The flexible display module of claim 5, wherein the buffer film layer comprises a foam material film layer; the first buffer sub-film layer and the second buffer sub-film layer are abutted in the orthographic projection area.
8. The flexible display module according to claim 7, wherein the buffer film layers comprise a third buffer sub-film layer and a fourth buffer sub-film layer located at two sides of an orthographic projection area of the bending area;
wherein, a preset gap is arranged between the first buffer sub-film layer and the third buffer sub-film layer; the second buffer sub-film layer and the fourth buffer sub-film layer are spaced by a preset gap.
9. A flexible display device, comprising the flexible display module according to any one of claims 1 to 8.
10. An electronic device characterized by comprising the flexible display device as claimed in claim 9.
CN201921117727.2U 2019-07-17 2019-07-17 Flexible display module, flexible display device and electronic equipment Expired - Fee Related CN210110214U (en)

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CN201921117727.2U CN210110214U (en) 2019-07-17 2019-07-17 Flexible display module, flexible display device and electronic equipment

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Application Number Priority Date Filing Date Title
CN201921117727.2U CN210110214U (en) 2019-07-17 2019-07-17 Flexible display module, flexible display device and electronic equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111489660A (en) * 2020-04-26 2020-08-04 京东方科技集团股份有限公司 Display module
CN114093264A (en) * 2021-11-25 2022-02-25 广州国显科技有限公司 Display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111489660A (en) * 2020-04-26 2020-08-04 京东方科技集团股份有限公司 Display module
CN111489660B (en) * 2020-04-26 2022-11-15 京东方科技集团股份有限公司 Display module
CN114093264A (en) * 2021-11-25 2022-02-25 广州国显科技有限公司 Display device
CN114093264B (en) * 2021-11-25 2024-02-02 广州国显科技有限公司 Display device

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Granted publication date: 20200221

Termination date: 20200717