CN110176185B - Flexible display module and protective film - Google Patents
Flexible display module and protective film Download PDFInfo
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- CN110176185B CN110176185B CN201910457462.9A CN201910457462A CN110176185B CN 110176185 B CN110176185 B CN 110176185B CN 201910457462 A CN201910457462 A CN 201910457462A CN 110176185 B CN110176185 B CN 110176185B
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- flexible display
- protective film
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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
Abstract
The embodiment of the application provides a flexible display module and a protective film, and the flexible display module comprises a flexible display panel, a protective film and a protective layer. The first surface of the protective film comprises a first area and a second area, wherein the second area of the protective film surrounds the first area, the first area of the protective film is attached to the flexible display panel, and the protective layer is arranged on the second area of the protective film. The flexible display panel is protected through the protective film, and the protective layer is arranged around the flexible display panel, so that the flexible display panel is prevented from colliding with the external environment in the transportation process, the flexible display panel is prevented from being broken, and the flexible display panel is protected.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, especially, relate to a flexible display module assembly and a protection film.
[ background of the invention ]
Flexible display module group usually can set up one deck protective glass layer on flexible display panel surface before dispatching from the factory to prevent that flexible display panel from colliding with external environment in the transportation, causing flexible display panel to break.
However, in special cases, the flexible display module needs to be packaged and transported in a state of lacking a protective glass layer, and a new technical scheme for protecting the flexible display panel is urgently needed.
[ summary of the invention ]
In view of this, the embodiment of the application provides a flexible display module and a protection film, protects flexible display panel through the protection film to set up the inoxidizing coating around flexible display panel, avoid flexible display panel and external environment to bump in the transportation, cause flexible display panel to break, realized protecting flexible display panel.
In one aspect, an embodiment of the present application provides a flexible display module, including:
a flexible display panel and a protective film;
the protective film has a first surface;
the first surface of the protective film has a first region and a second region, the second region surrounding the first region;
the first area of the protective film is attached to the flexible display panel; wherein a vertical projection portion of the flexible display panel on the protective film is located within a first region of the protective film;
the second area of the protective film is provided with a protective layer.
Optionally, the thickness of the protective layer is greater than that of the flexible display panel.
Optionally, the modulus of elasticity of the overcoat layer is greater than the modulus of elasticity of the first region of the protective film.
Optionally, the second area is a frame of the first area, the width of the frame is d, wherein d is greater than or equal to 2mm and less than or equal to 5 mm.
Optionally, the first region of the protective film is attached to the flexible display panel through a first connection layer; and the second area of the protective film is attached to the protective layer through a second connecting layer.
Optionally, the first connection layer includes a first glue, the second connection layer includes a second glue, a viscosity value of the first glue is C1, 10cps is equal to or less than C1 is equal to or less than 30cps, and a viscosity value of the second glue is C2, C2 is greater than C1.
Optionally, the method further comprises: the control chip is electrically connected with the binding terminal part of the flexible display panel; the control chip is adjacent to the flexible display panel in a first direction; the second area of the protective film extends along the first direction and further comprises an extension area, and the vertical projection part of the control chip on the protective film is located in the extension area.
Optionally, the two ends of the extension area along a second direction have openings, and the second direction is perpendicular to the first direction.
Optionally, the method further comprises: the flexible circuit board is connected with the control chip; the first surface of protection film still has the third region, with the laminating of flexible circuit board.
Optionally, the flexible circuit board and the third region of the protective film are bonded by at least one adhesive tape.
Optionally, the length of the third area of the protective film in the second direction is greater than that of the flexible circuit board by D, wherein D is greater than or equal to 4mm and less than or equal to 10 mm.
In another aspect, an embodiment of the present application provides a protective film, including:
a first surface having a first region and a second region, the second region surrounding the first region;
the second area is provided with a protective layer.
Optionally, the modulus of elasticity of the overcoat layer is greater than the modulus of elasticity of the first region of the protective film.
Optionally, a first connecting layer covers a first area of the protective film, and a second area of the protective film is attached to the protective layer through a second connecting layer.
Optionally, the first connection layer includes a first glue, the second connection layer includes a second glue, a viscosity value of the first glue is C1, 10cps is equal to or less than C1 is equal to or less than 30cps, and a viscosity value of the second glue is C2, C2 is greater than C1.
The embodiment of the application provides a pair of flexible display module and a protection film, protect flexible display panel through the protection film to set up the inoxidizing coating around flexible display panel, avoid flexible display panel and external environment in the transportation bump, cause flexible display panel to break, realized protecting flexible display panel.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described 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 perspective view of a flexible display module according to an embodiment of the present disclosure;
FIG. 2 is a corresponding exploded view of FIG. 1;
FIG. 3 is a view in the Z direction of FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along the dashed line A-A' in FIG. 3;
fig. 5 is a schematic perspective view of another flexible display module according to an embodiment of the present disclosure;
FIG. 6 is a view in the Z direction of FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along the dashed line B-B' in FIG. 6;
fig. 8 is a schematic perspective view of another flexible display module according to an embodiment of the present disclosure;
FIG. 9 is a view in the Z direction of FIG. 8; and
fig. 10 is a schematic cross-sectional view taken along the dashed line C-C' in fig. 9.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should 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 making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the display regions in the embodiments of the present application, the display regions should not be limited to these terms. These terms are used only to distinguish the display regions from each other. For example, the first display region may also be referred to as a second display region, and similarly, the second display region may also be referred to as a first display region without departing from the scope of the embodiments of the present application.
Flexible display module assembly compares in traditional display module assembly more fragile, and easy damage, the protection scheme of the flexible display module assembly that this application provided has fully considered the characteristic of flexible display module assembly to corresponding safeguard measure has been designed pertinently.
The protection scheme that this application provided realizes protecting the flexible display panel who lacks the protective glass layer in the transportation through protection film and inoxidizing coating.
Fig. 1 is a schematic perspective view of a flexible display module according to an embodiment of the present disclosure. As shown in fig. 1, the display module includes a flexible display screen 110 and a protective film 10.
In order to more clearly show the structure of the protective film 10 and the protective layer 120 disposed on the protective film 10, fig. 2 corresponding to fig. 1 is also provided. As shown in fig. 2, the protective film 10 has a first portion 130 and a second portion 140. In addition, the protection film 10 further has a first surface, and the first surface of the protection film 10 has a first area and a second area, wherein the first area is an area corresponding to the first portion 130 of the protection film 10 on the first surface, and the second area is an area corresponding to the second portion 140 of the protection film 10 on the first surface. The first region of the protective film 10 is attached to the flexible display panel 110, and the second region of the protective film 10 is provided with a protective layer 120 for protecting the flexible display panel 110 from being broken due to collision during transportation.
Specifically, the perpendicular projection of the flexible display panel 110 on the protective film 10 is located within the first region of the protective film 10. That is, the surface of the flexible display panel 110 that is attached to the protective film 10 is included in the first region of the protective film 10.
Fig. 3 is a view in the Z direction in fig. 2. As shown in fig. 3, the second portion 140 of the protective film 10 surrounds the first portion 130 of the protective film 10, and accordingly, the second region surrounds the first region, and the overcoat layer 120 also surrounds the flexible display panel 110.
In the above structure, the flexible display panel 110 is laterally protected by attaching and fixing the protective film 10 to the flexible display panel 110, disposing the shield layer 120 around the flexible display panel 110, and fixing the relative positions of the shield layer 120 and the flexible display panel 110.
That is, when the flexible display panel 110 moves laterally during transportation, the movement is transferred to the shield layer 120 through the protective film 10, and thus the flexible display panel 110, the protective film 10, and the shield layer 120 move together.
In the prior art, in the process of display panel verification or shipment, the display panel is usually placed directly in a transport device called TRAY. During transportation, when the flexible display panel 110 moves laterally, it will collide with the wall of the TRAY, resulting in the rupture of the flexible display panel 110.
For the flexible display module provided by the present application, after the flexible display panel 110 is attached and fixed to the first region of the protective film 10, the flexible display module is placed in a transportation device similar to a TRAY structure. During transportation, once the lateral movement occurs, the flexible display panel 110, the protective film 10, and the overcoat layer 120 move together. When colliding with the retaining wall of the TRAY, because the flexible display panel 110 is attached and fixed on the protective film 10, when colliding, the protective layer 120 directly collides and contacts with the TRAY, thereby protecting the flexible display panel 110.
In addition, a certain distance exists between the overcoat layer 120 and the flexible display panel 110 to facilitate the attachment and detachment of the flexible display panel 110 to and from the protective film 10.
Further, in order to prevent the flexible display panel 110 from being longitudinally compressed, as shown in fig. 4, the thickness of the shield layer 120 is greater than that of the flexible display panel 110. When the flexible display panel 110 is pressed in the Z direction, the shielding layer 120 is stressed before the flexible display panel 110, and forms a supporting structure, thereby preventing the flexible display panel 110 from being pressed and collided to cause poor display.
In order to provide the protective effect of the protective layer 120, the elastic modulus of the protective layer 120 is greater than that of the first region of the protective film 10. It can be understood that the shielding layer 120 may be deformed to absorb and release energy when being impacted in a lateral direction or squeezed in a longitudinal direction.
The object can be deformed after being subjected to external pressure, in the elastic deformation stage, the pressure and the deformation are in a direct proportional relation, the direct proportional relation corresponding to different materials is different, and therefore when the object is subjected to external force with the same size, the deformation is different.
The magnitude of the above-mentioned proportional relationship is measured by the elastic modulus, and the larger the elastic modulus is, the smaller the deformation is generated when the material is subjected to the external force of the same magnitude.
Therefore, the elastic modulus of the overcoat layer 120 needs to be greater than that of the first region of the protective film 10 to better protect the flexible display panel 110. Generally, the greater the elastic modulus of the shielding layer 120, the better the shielding layer can support the flexible display panel 110 when the flexible display panel is laterally collided or longitudinally pressed.
Alternatively, the protective layer 120 may include a hard material such as polyethylene terephthalate plastic (PET plastic), which has an elastic modulus of >4000MPa, a high surface hardness, and excellent abrasion and friction resistance and dimensional stability. When colliding with the external environment, the deformation of the PET plastic is small, the collision impact force is rapidly released, the rupture does not occur, and the flexible display panel 110 is reliably protected.
The material of the shield layer 120 may be a material having a high impact absorbability, such as a rigid foam having an elastic modulus of more than 700MPa, and excellent impact and vibration energy absorbability, and may absorb an impact generated when the shield layer collides with the external environment, but is not limited thereto.
In consideration of the actual situation in industrial production, in order to save costs and at the same time facilitate processing of the hard material into a shape matching the second region 140 of the protective film 10, a hard plastic may be used as the hard material in the protective layer 120.
As can be understood from the foregoing description, as shown in fig. 3, the second region of the protective film surrounds the first region, i.e., the second region is a frame of the first region. Taking the TRAY disc adopted for transportation in the existing display panel transportation as an example, generally, an area surrounded by the retaining walls of the TRAY disc is designed to be slightly larger than the flexible display panel 110, in order to protect the flexible display panel 110, and in the transportation process, the flexible display panel 110, the protective layer 120 and the protective film 10 are all placed in a transportation device, the width d of the frame of the first area can be set, d is more than or equal to 2mm and less than or equal to 5mm, and the width d is too small, so that the protective effect of the protective layer 120 is influenced, the impact cannot be buffered well, and the protection of the flexible display panel 110 is realized; if the width d is too large, the flexible display module attached to the protective film 10 may not be placed in a transportation device.
It can be understood that, during the use process, the flexible display panel 110 needs to be attached to the first region of the protective film 10 before the transportation starts, and needs to be separated from the first region of the protective film 10 after the transportation is finished so as to perform the subsequent processing or verification process on the flexible display panel 110 as required.
In contrast, the overcoat layer 120 is part of the protective film 10 structure, and the overcoat layer 120 is required to be permanently attached to the second region of the protective film 10.
It should be noted that, in the embodiment of the present application, the protection film 10 is used to protect the flexible display panel 110, and the protection film 10 needs to be separated from the flexible display panel 110 after the test or transportation is completed during the test or transportation.
The separated protective film 10 can be reused and attached and fixed with other flexible display panels needing to be tested or transported. That is, the attachment of the overcoat layer 120 to the second region of the protective film 10 is permanent, and the attachment of the flexible display panel 110 to the first region of the protective film 10 is temporary.
Therefore, the two methods of attachment are different. As shown in fig. 4, a first region of the protective film 10 is attached and fixed to the flexible display panel 110 through the first connection layer 150, and a second region of the protective film 10 is attached to the protective layer 120 through the second connection layer 160.
In order to facilitate the attachment, fixation and separation of the flexible display panel 110 and the first region of the protective film 10 without damaging the flexible display panel 110, glue may be used as a connection layer for attachment. Specifically, the first connection layer 150 includes a first glue, and the second connection layer 160 includes a second glue, where a viscosity value of the first glue is C1, a viscosity value of the second glue is C1, and a viscosity value of the second glue is C2, and C2 is greater than C1. It should be noted that when the viscosity of the first glue is set to 10cps C1 30cps, the first region of the flexible display panel 110 and the first region of the protective film 10 can maintain sufficient viscosity, and when the first glue moves laterally during transportation, the flexible display panel 110 and the protective film 10 can be kept relatively still without colliding with the surrounding protective layer 120. Meanwhile, after the transportation is finished, the flexible display panel 110 cannot be damaged in the separation process due to the overlarge viscosity of the glue.
In addition, an adhesive tape may be used as a connecting layer for bonding. Specifically, the first connection layer 150 comprises a first adhesive tape, and the second connection layer 160 comprises a second adhesive tape, wherein the viscosity value of the first adhesive tape is C1, 10cps is equal to or less than C1 is equal to or less than 30cps, the viscosity value of the second adhesive tape is C2, and C2 is greater than C1.
Further, flexible display panel needs control chip to carry out the control of display signal, for the protection scheme of the flexible display module that explains more clearly that this application embodiment provides, this application embodiment has still provided another kind of flexible display module.
Fig. 5 is a schematic perspective view of another flexible display module according to an embodiment of the present application. As shown in fig. 5, the flexible display module further includes a control chip 210 electrically connected to the binding terminal portion of the flexible display panel 110, and the control chip 210 is adjacent to the flexible display panel 110 in the first direction.
Accordingly, as shown in fig. 6, in order to protect the control chip 210 and the binding terminal portion of the flexible display panel 110, the second region of the protective film 10 extends along the first direction and further includes an extension region 220, and a vertically projected portion of the control chip 210 on the protective film 10 is located in the extension region 220. In addition, the shield layer 120 may also extend in the first direction corresponding to the extension region 220, so that the shield layer 120 can support and protect the control chip 210.
Further, as shown in fig. 7, in consideration of the relative position relationship between the control chip 210 and the flexible display panel 110, the thickness of the control chip 210 in the corresponding region of the shielding layer 120 is reduced to the thickness of the flexible display panel 110, so that the shielding layer 120 and the control chip 210 have a suitable height relationship, and the stability of the whole display module is increased.
It should be understood that the force applied when the protective layer 120 collides with the peripheral hard structure during transportation is transmitted to the flexible display panel 110 through the protective film 10, and the corners of the flexible display panel 110 are more vulnerable. In order to buffer the sharp corners of the shielding layer 120, as shown in fig. 6, the extended region 220 has openings 230 at both ends along a second direction, wherein the second direction is perpendicular to the first direction.
Therefore, when the sharp corner of the protective layer 120 is stressed, the protective film 10 deforms at the opening 230 to release energy, so that the stress of the sharp corner is buffered, and the stress is prevented from being transmitted inwards to cause loss to the corner of the flexible display panel.
In order to solve the problem that the sharp corner of the protective layer 120 is stressed too much, the embodiment of the present application may also change the sharp corner of the protective layer 120 into a corner. It can be understood that, after the corner of the protective layer 120 collides with the peripheral hard structure and is stressed, the protective layer 120 can drive the flexible display module to shift, so as to reduce the stress when the flexible display module collides with the peripheral hard structure.
Further, the flexible display panel needs the flexible circuit board to carry out the input of display signal, for the protection scheme of the flexible display module that explains more clearly that this application embodiment provides, this application embodiment has still provided still another flexible display module.
Fig. 8 is a schematic perspective view of another flexible display module according to an embodiment of the present application. As shown in fig. 8, the flexible display module further includes a flexible circuit board 310 connected to the control chip 210.
Accordingly, as shown in fig. 8, the flexible circuit board 310 is electrically connected to the binding terminal portion of the flexible display panel 110, and the position of the flexible circuit board 310 needs to be fixed in consideration of the characteristics thereof. Otherwise, the flexible circuit board 310 may cause a failure in the electrical connection between the flexible circuit board 310 and the binding terminal portion of the flexible display panel 110 in case of a collision or a disturbance.
In order to fix the position of the flexible circuit board 310 and avoid the occurrence of failure, the protective film 10 further has a third portion 320, the first surface of the protective film 10 further has a third area, the third area is an area of the third portion 320 of the protective film 10 corresponding to the first surface, and the third area is attached to the flexible circuit board 310.
As shown in fig. 10, unlike the flexible display panel 110, the flexible circuit board 310 is difficult to remove after being glued, which affects the use, so the flexible circuit board 310 is adhered to the third area of the protective film 10 by at least one adhesive tape 330, which facilitates the separation of the flexible circuit board 310 from the third area of the protective film 10 after the transportation is finished, and does not affect the use of the flexible circuit board 310.
Similar to the description of the second area of the protection film 10, i.e. the width of the frame, on one hand, in order to enable the third area of the protection film 10 to protect the flexible circuit board 310, and on the other hand, in order to reduce the space area occupied by the whole display module, the length of the third area of the protection film 10 in the second direction may be set to be larger than that of the flexible circuit board 310 by D, where D is greater than or equal to 4mm and less than or equal to 10 mm.
It should be understood that both ends of the flexible circuit board 310 in the second direction need to be protected by the third region of the protective film 10, and thus D (═ D1+ D2).
It is understood that the perpendicular projection of the flexible wiring board 310 on the protective film 110 is located in the third area of the protective film 10, and the third area of the protective film 10 is larger than the perpendicular projection of the flexible wiring board 310, so that the flexible wiring board 310 can be further protected.
In addition, in order to realize the protection scheme of the above-mentioned flexible display module, the embodiment of the present application further provides a protection film 10, including: a first surface having a first area and a second area surrounding the first area, the second area being provided with a protective layer 120.
The first region of the protective film 10 is attached to the object to be protected, so that the protective layer 120 surrounds the object to be protected and protects the object to be protected.
When the protected object moves laterally during transportation, the movement is transmitted to the armor 120 through the protective film 10, and thus the protected object, the protective film 10, and the armor 120 move together.
In case of collision with the external environment, the object to be protected is protected by the shielding layer 120 coming into direct collision contact with the external environment.
Further, in order to improve the protective effect of the protective film, the elastic modulus of the overcoat layer 120 is greater than that of the first region of the protective film 10.
It can be understood that the overcoat layer 120 needs to be in direct collision contact with the external environment, and thus the elastic modulus of the overcoat layer 120 needs to be greater than that of the first region of the protective film 10 to effectively protect the protected object.
In addition, the first region of the protective film 10 is covered with the first connection layer 150, the second region of the protective film is attached to the shield layer 120 through the second connection layer 160, and the object to be protected is connected to the first region of the protective film through the first connection layer 150.
In the embodiment of the present application, the protective film 10 is used to protect the object to be protected during transportation, and after the transportation is completed, the protective film 10 needs to be separated from the object to be protected.
The separated protective film 10 can be reused and bonded and fixed with other objects to be protected which need to be transported. That is, the adhesion of the overcoat 120 to the second region of the protective film 10 is permanent, and the adhesion and fixation of the object to be protected to the first region of the protective film 10 is temporary.
Therefore, the two methods of attachment are different. Specifically, a first region of the protective film 10 is attached and fixed to the flexible display panel 110 through the first connection layer 150, and a second region of the protective film 10 is attached to the protective layer 120 through the second connection layer 160.
In order to facilitate the attaching and the separation of the protected object, and simultaneously, the protected object is not damaged, glue can be adopted as a connecting layer for attaching. Specifically, the first connection layer 150 includes first glue, the second connection layer includes second glue, a viscosity value of the first glue is C1, a viscosity value of the first glue is not less than 10cps and not more than C1 and not more than 30cps, a viscosity value of the second glue is C2, and C2 is more than C1.
When the viscosity value of the first glue is set to be 10cps or more and C1 or more and 30cps or less, the protected object and the first area of the protective film 10 can keep enough viscosity, and when the first glue moves transversely in the transportation process, the protected object and the protective film 10 can keep relatively still and do not collide with the surrounding protective layer 120. Meanwhile, after the transportation is finished, the protected object cannot be damaged in the separation process due to the fact that the viscosity of the glue is too high.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. The utility model provides a flexible display module assembly which characterized in that, display module assembly includes:
a flexible display panel and a protective film;
the protective film has a first surface;
the first surface of the protective film has a first region and a second region, the second region surrounding the first region;
the first area of the protective film is attached to the flexible display panel; wherein a vertical projection portion of the flexible display panel on the protective film is located within a first region of the protective film; and
a protective layer is arranged in the second area of the protective film;
the first area of the protective film is attached to the flexible display panel through a first connecting layer, and the second area of the protective film is attached to the protective layer through a second connecting layer;
the first connecting layer comprises first glue, the second connecting layer comprises second glue, the viscosity value of the first glue is C1, the viscosity value of the first glue is not less than 10cps and not more than C1 and not more than 30cps, the viscosity value of the second glue is C2, and C2 is more than C1.
2. The flexible display module of claim 1, wherein the protective layer has a thickness greater than a thickness of the flexible display panel.
3. The flexible display module according to claim 2, wherein the protective layer has a modulus of elasticity greater than a modulus of elasticity of the first region of the protective film.
4. The flexible display module according to claim 1, wherein the second region is a frame of the first region, the frame has a width d, and wherein d is greater than or equal to 2mm and less than or equal to 5 mm.
5. The flexible display module of any one of claims 1-4, further comprising:
the control chip is electrically connected with the binding terminal part of the flexible display panel;
the control chip is adjacent to the flexible display panel in a first direction;
the second area of the protective film extends along the first direction and further comprises an extension area, and the vertical projection part of the control chip on the protective film is located in the extension area.
6. The flexible display module of claim 5, comprising: the two ends of the extension area along a second direction are provided with openings, and the second direction is perpendicular to the first direction.
7. The flexible display module of claim 6, further comprising:
the flexible circuit board is connected with the control chip;
the first surface of protection film still has the third region, with the laminating of flexible circuit board.
8. The flexible display module of claim 7, wherein the flexible circuit board is bonded to the third area of the protective film by at least one adhesive tape.
9. The flexible display module of claim 8, wherein the third area of the protective film has a length D greater than the flexible circuit board in the second direction, wherein D is greater than or equal to 4mm and less than or equal to 10 mm.
10. A protective film, comprising:
a first surface having a first region and a second region, the second region surrounding the first region;
the second area is provided with a protective layer;
the first region of protection film covers has first articulamentum, the second region of protection film pass through the second articulamentum with the inoxidizing coating laminating, first articulamentum includes first glue, the second articulamentum includes the second glue, the viscosity number of first glue is C1, and 10cps is less than or equal to C1 and is less than or equal to 30cps, the viscosity number of second glue is C2, and C2> C1.
11. The protective film of claim 10, wherein the protective layer has a modulus of elasticity greater than a modulus of elasticity of the first region of the protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457462.9A CN110176185B (en) | 2019-05-29 | 2019-05-29 | Flexible display module and protective film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457462.9A CN110176185B (en) | 2019-05-29 | 2019-05-29 | Flexible display module and protective film |
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| CN110176185A CN110176185A (en) | 2019-08-27 |
| CN110176185B true CN110176185B (en) | 2022-05-31 |
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| CN201910457462.9A Active CN110176185B (en) | 2019-05-29 | 2019-05-29 | Flexible display module and protective film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111739424B (en) * | 2020-06-30 | 2022-01-28 | Oppo广东移动通信有限公司 | Flexible screen and foldable electronic device |
| CN113658911B (en) * | 2021-09-13 | 2023-10-13 | Tcl华星光电技术有限公司 | Display panel and preparation method thereof |
| CN114399950B (en) * | 2022-01-19 | 2023-11-14 | 京东方科技集团股份有限公司 | Protection assembly and display device |
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