CN114550590A - Flexible screen, display screen assembly and electronic equipment - Google Patents
Flexible screen, display screen assembly and electronic equipment Download PDFInfo
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- CN114550590A CN114550590A CN202210163234.2A CN202210163234A CN114550590A CN 114550590 A CN114550590 A CN 114550590A CN 202210163234 A CN202210163234 A CN 202210163234A CN 114550590 A CN114550590 A CN 114550590A
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Images
Classifications
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a display screen assembly and electronic equipment, wherein the display screen assembly comprises a flexible screen and a protective film arranged on the flexible screen; wherein, a capsule is arranged in the protective film, and a first reactant and a second reactant which are mutually isolated are arranged in the capsule; when the protective film cracks, the capsule is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks. The display screen subassembly and electronic equipment that this application embodiment provided through be equipped with the capsule in the protection film to be equipped with the first reactant and the second reactant of mutual isolation in the capsule, when the protection film takes place to damage and appears the crackle, the capsule atress releases first reactant and second reactant, makes first reactant and second reactant contact take place to react in order to form the filler, and fills in the crackle, and then accomplishes the restoration to the protection film.
Description
Technical Field
The application relates to the technical field of electronic equipment structures, in particular to a flexible screen, a display screen assembly and electronic equipment.
Background
With the development of electronic devices such as mobile phones, more and more enterprises release flexible screen products, which forms a preliminary competitive trend, and especially the appearance expressive force of the surface of the flexible screen becomes an important problem point influencing the subjective feeling of users.
However, the flexible screen is prone to crack during use, which affects the user experience.
Disclosure of Invention
The embodiment of the application provides a display screen assembly on one hand, and the display screen assembly comprises a flexible screen and a protective film arranged on the flexible screen, wherein a capsule is arranged in the protective film, and a first reactant and a second reactant which are mutually isolated are arranged in the capsule; when the protective film cracks, the capsule is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks.
Another aspect of the embodiment of the present application further provides a display screen assembly, where the display screen assembly includes a flexible screen and a protection film disposed on the flexible screen; the protective film and the flexible screen are both internally provided with capsules, and a first reactant and a second reactant which are mutually isolated are arranged in the capsules; when the protective film cracks, the capsules in the protective film are stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the protective film; when the flexible screen cracks, the capsules in the flexible screen are stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the flexible screen; when the protective film and the flexible screen are cracked, the capsule in the protective film is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the protective film; the first reactant and the second reactant are released by the capsule in the flexible screen under the stress, the first reactant and the second reactant are contacted and react to form a filler, and the filler is filled in the cracks of the flexible screen.
The display screen assembly comprises a flexible screen and an elastic layer, the display screen comprises an encapsulation layer, a device layer and a substrate layer, and the elastic layer is arranged on at least one of the encapsulation layer, the device layer and the substrate layer; wherein the elastic layer has a Shore hardness of not more than 50 degrees, an elongation of not less than 400%, a tensile strength of not less than 20MPa, and a damping ratio of not less than 10% and not more than 50%. The display screen subassembly that this application embodiment provided's shock-absorbing capacity and fatigue performance are better, through smooth structure dispersion stress under the exogenic action, reduce the material surface damage that stress concentration leads to reduce the mar and produce.
In another aspect, an embodiment of the present application further provides a flexible screen, where a capsule is disposed in the flexible screen, and a first reactant and a second reactant that are isolated from each other are disposed in the capsule; when the flexible screen cracks, the capsule is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filling material, and the filling material is filled in the cracks.
In another aspect, an embodiment of the present application further provides an electronic device, which includes a housing and the display screen assembly described in the foregoing embodiment; the shell is provided with a folding mechanism, and the display screen assembly can be folded through the folding mechanism.
The embodiment of the application provides a flexible screen, display screen subassembly and electronic equipment, through set up the capsule in protective film and/or flexible screen, and be equipped with first reactant and the second reactant of mutual isolation in the capsule, when the protective film takes place to damage and appears the crackle, make the capsule atress puncture or be opened in order to release first reactant and the second reactant of mutual isolation, make first reactant and the second reactant of mutual isolation contact and react in order to form the filler, and fill in the crackle, and then accomplish the restoration to protective film and/or flexible screen, thereby prolong the life of protective film, flexible screen, display screen subassembly and electronic equipment.
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 diagram of an electronic device in some embodiments of the present application;
FIG. 2 is a schematic diagram of the electronic device in FIG. 1 with a split structure;
FIG. 3 is a schematic view of a stack-up configuration of a display screen assembly according to some embodiments of the present application;
FIG. 4 is a schematic structural view of a protective film in some embodiments of the present application;
FIG. 5 is a schematic view of the repair of the protective film in the embodiment of FIG. 4;
FIG. 6 is a schematic view of the structure of a capsule in some embodiments of the present application;
FIG. 7 is a schematic view of the structure of a capsule according to further embodiments of the present application;
FIG. 8 is a schematic view of a flexible screen according to further embodiments of the present application;
FIG. 9 is a schematic view of a display screen assembly according to further embodiments of the present application;
FIG. 10 is a schematic view of a display screen assembly according to further embodiments of the present application;
FIG. 11 is a schematic view of a display screen assembly according to further embodiments of the present application;
FIG. 12 is a schematic view of a display screen assembly according to further embodiments of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, Web browser, memo pad, calendar and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device 100 according to some embodiments of the present application, and fig. 2 is a schematic structural diagram of the electronic device 100 according to fig. 1.
The electronic device 100 provided in the embodiment of the present application may specifically be a mobile phone, a tablet computer, a notebook computer, and the like, and the electronic device 100 is hereinafter referred to as a mobile phone as an example. The electronic device 100 may include a display screen assembly 10, a center frame 20, and a housing 30. Wherein the display screen assembly 10 may be coupled to one side of the middle frame 20 and the housing 30 may be coupled to the other opposite side of the middle frame 20. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
Specifically, the display screen assembly 10 may be used to provide an image display function for the electronic device 100, and the display screen assembly 10 may be covered on one side of the middle frame 20, and may be adhesively fixed therebetween by an adhesive. The display screen assembly 10 may include a transparent cover plate, a touch panel and a display screen sequentially stacked. The surface of the transparent cover plate can have the characteristics of flatness and smoothness, so that a user can conveniently perform touch operations such as clicking, sliding and pressing. The transparent cover plate may be made of a rigid material such as glass, or may be made of a flexible material such as Polyimide (PI) or Colorless Polyimide (CPI). The touch panel is disposed between the transparent cover and the display screen, and is configured to respond to a touch operation of a user, convert the touch operation into an electrical signal, and transmit the electrical signal to the processor of the electronic device 100, so that the electronic device 100 can make a corresponding response to the touch operation of the user. The display screen is mainly used for displaying pictures and can be used as an interactive interface to instruct a user to perform the touch operation on the transparent cover plate. The Display screen may adopt an OLED (Organic Light-Emitting Diode) or an LCD (Liquid Crystal Display) to realize an image Display function of the electronic device 100. In this embodiment, the transparent cover plate, the touch panel and the display screen may be attached together by using an optical Adhesive (OCA) or a Pressure Sensitive Adhesive (PSA). Meanwhile, the display screen assembly 10 may be a double curved screen or a four curved screen in shape to reduce the black edge of the display screen assembly 10 and increase the viewing area of the display screen assembly 10. Accordingly, the display screen assembly 10 may also be a conventional flat screen, as long as the display screen assembly 10 is capable of implementing the graphic display functionality of the electronic device 100.
As shown in fig. 2, the middle frame 20 may include a middle plate 21 and a side frame 22 that are integrally formed, and they may be integrally formed by injection molding, punch forming, heat absorption forming, or the like. The frame 22 may be formed by extending the side wall of the middle plate 21 in the thickness direction of the middle plate 21, so that both sides of the middle frame 20 opposite to each other may form a corresponding open structure. The display screen assembly 10 and the housing 30 may respectively cover the open structures on two opposite sides of the middle frame 20, so as to jointly enclose the accommodating space forming the electronic device 100 with the middle frame 20. The accommodating space may be used to mount electronic devices required by the electronic apparatus 100, such as a battery, a sensor, a circuit board, a camera, and the like. In some embodiments, the middle plate 21 and the side frame 22 may also be two independent structural members, and the two may be connected by one of assembling manners such as clamping, bonding, welding, and the like, and a combination thereof. Alternatively, the middle frame 20 may include only the bezel 22.
In addition, the material of the middle frame 20 and the shell 30 may be glass, metal, hard plastic, etc., so that the middle frame 20 and the shell 30 have certain structural strength. Because the middle frame 20 and the casing 30 are generally directly exposed to the external environment, the middle frame 20 and the casing 30 may also have certain properties of wear resistance, corrosion resistance, scratch resistance, and the like, or the outer surfaces of the middle frame 20 and the casing 30 (i.e., the outer surfaces of the electronic device 100) are coated with a layer of functional material for wear resistance, corrosion resistance, scratch resistance. In addition, in some embodiments, a corresponding brand identifier (LOGO) may be disposed on the middle frame 20 or the housing 30 to beautify the appearance of the electronic device 100 and improve brand recognition.
It should be noted that, based on the development of flexible screen products, the display screen assembly 10 may adopt a foldable structure in order to implement the change of the display screen form of the electronic device. That is, the transparent cover plate, the touch panel, and the display screen stacked in the display screen assembly 10 can be folded. For example, in one embodiment, the display screen may be an OLED flexible display screen, and the transparent cover plate may be made of a flexible material such as PI or CPI, so as to realize the folding function of the display screen assembly 10.
Preferably, the electronic device 100 in the embodiment of the present application is an electronic device including a flexible screen, that is, the housing 30 of the electronic device 100 may be changed in shape, such as folded, pulled, rolled, and the like, and when the housing 30 is changed in shape, such as folded, pulled, rolled, and the like, the display screen assembly 10 may be changed in shape synchronously, such as folded synchronously. In other words, the respective stacked structures of the display screen assembly 10 can be simultaneously folded, pulled, rolled, etc. as the housing 30 is changed for folding, pulling, rolling, etc. Illustratively, the housing 30 may be provided with a folding mechanism by which the display screen assembly 10 may be folded. The folding mechanism can be a hinge mechanism, a rotating shaft mechanism, an elastic mechanism and the like, and the detailed technical characteristics of the folding mechanism are understood by those skilled in the art and are not detailed here. Of course, in other embodiments, the housing 30 is of a flexible or retractable construction such that the housing 30 can be folded, pulled, rolled, etc. in unison with the display screen assembly 10.
Since the electronic device including the flexible screen is in use, cracks, microcracks are liable to occur due to the form change. Based on this, the applicant has developed a display panel assembly to solve the technical problems of the display panel assembly.
Referring to fig. 3, fig. 3 is a schematic view of a stacked structure of a display panel assembly 50 according to some embodiments of the present application, where the display panel assembly 50 can be used in the electronic device 100 or other electronic devices with different shapes according to the embodiments. The display panel assembly 50 may generally include a flexible panel 51 and a protective film 52 disposed on the flexible panel 51, wherein the protective film 52 may be changed in shape such as bending along with the flexible panel 51. The flexible screen 51 may include a first surface 511 and a second surface 512 that are disposed opposite to each other, the first surface 511 may be a surface of the flexible screen 51 that faces away from the housing 30 and is exposed to the electronic device 100, and the second surface 512 may be a surface of the flexible screen 51 that is close to the housing 30 and is hidden in the electronic device 100.
The protective film 52 is provided on one side of the flexible panel 51 to protect the flexible panel 51. The protective film 52 may be attached to a side of the flexible screen 51 facing away from the housing 30, i.e. the protective film 52 may be attached to the first surface 511 of the flexible screen 51. The protective film 52 is attached to the entire surface of the flexible screen 51, and the attaching surface is flat, so that the flexible screen 51 can be completely protected. When the display screen assembly 50 is folded, pulled, rolled, etc., the protective film 52 and the flexible screen 51 can be synchronously folded, pulled, rolled, etc., to present a bending state.
It should be noted that the protective film 52 may have a sheet structure with a certain thickness to ensure that the protective film 52 is not easily deformed when bending, and can be flattened when the flexible screen is unfolded. The thickness of the protective film 52 can be selected according to the size, thickness and deformation requirements of the whole machine. The thickness of the protective film 52 generally does not exceed 200 microns, for example the thickness of the protective film 52 can be 50 microns, 80 microns, 100 microns, 150 microns, 200 microns, and the like.
In an embodiment, the protection film 52 may be made of a flexible transparent material, so that the protection film 52 and the flexible screen 51 can be deformed synchronously to assume a bent state. The protective film 52 may be made of Polyimide (PI), Colorless Polyimide (CPI), polyethylene terephthalate (PET), or Thermoplastic Polyurethane (TPU) elastic layer.
Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a protective film 52 in some embodiments of the present application, and fig. 5 is a schematic repair diagram of the protective film 52 in the embodiment of fig. 4, wherein a plurality of capsules 521 are disposed in the protective film 52, and a reactant 522 is disposed in the capsules 521. When the protective film 52 is broken and cracked, the capsule 521 is punctured or opened by force to release the reactant 522, so that the broken part of the protective film 52 is repaired. Specifically, when the protective film 52 is subjected to repeated bending force or external impact force, cracks or microcracks may be generated, which may cause the capsule 521 located in the region to be punctured or opened by the force, and the reactant 522 is released and filled in the cracks or microcracks, thereby achieving the repairing effect.
As shown in fig. 5, when the protective film 52 is broken to generate a crack 520, the capsule 521 in the area is forced to be punctured or opened by the generation or propagation of the crack 520, so that the reactant 522 in the capsule 521 is released and reacts to form a filler to be filled in the crack 520, thereby repairing the protective film 52.
It is understood that the protective film 52 is generally disposed on the display surface of the flexible screen 51, and the protective film 52 is generally made of a transparent material in order to avoid affecting the display effect of the flexible screen 51. Similarly, the capsule 521 is generally made of transparent material. Preferably, the material of the capsule 521 is consistent with that of the protective film 52, so that the capsule 521 and the protective film 52 can present consistent appearance performance, thereby avoiding affecting the display effect of the flexible screen 51. For example, when the protective film 52 is made of PET, the capsule 521 is made of PET; when the protective film 52 is made of TPU, the capsule 521 is made of TPU; when the material of the protective film 52 is PI, the material of the capsule 521 is PI. Of course, in other embodiments, the material of the capsule 521 may not be the same as the material of the protective film 52, and it is sufficient to ensure that the protective film 52 can achieve a uniform appearance in appearance.
Further, the particle size of the capsule 521 is generally not more than 20 μm, and the overall strength of the protective film 52 may be affected by an excessively large size of the capsule 521. For example, the particle size of the capsule 521 may be 5 microns, 10 microns, 15 microns, and the like. Preferably, the capsules 521 are uniformly distributed within the protective film 52 to ensure timely repair in the event of a failure at any location.
In one embodiment, the reactant 522 may include a first reactant and a second reactant isolated from each other, which react upon contact to form a filler that fills the damage crack of the protective film 52 for repair. It is understood that a chemical reaction may occur between the first reactant and the second reactant to generate a filler consistent with the material of the protective film 52, which fills the cracks at the breakage to achieve a repairing effect. Preferably, the reactant 522 may be in a fluid form so as to smoothly flow into the crack gap when the capsule 521 is broken.
It should be noted that the terms "first" and "second" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The display screen subassembly that this application embodiment provided is through being equipped with a plurality of capsules in the protective film to be equipped with the reactant in the capsule, when the protective film takes place the damaged crackle that appears, the capsule atress is pricked or is opened and release the reactant, and then accomplishes the restoration to the protective film, prolongs the life of protective film or even display screen subassembly. In addition, the reactants comprise a first reactant and a second reactant, and the first reactant and the second reactant react to generate a filler which is consistent with the material of the protective film and is filled in the cracks at the damaged parts for repairing. It can be understood that different reactants can be selected according to actual needs, different types of protective films can be formed, and the diversity of products can be enriched.
Further, a chain extender and a catalyst may be further disposed in the capsule 521 to ensure that the chemical reaction between the first reactant and the second reactant can be smoothly performed. That is, when the capsule 521 is punctured, the capsule 521 simultaneously releases the chain extender and the catalyst to react with the first reactant and the second reactant, thereby repairing the protective film 52.
When the material of the protective film 52 is PET, the first reactant may be dimethyl terephthalate and the second reactant may be phthalic acid, or the first reactant may be dihydroxy ethyl terephthalate and the second reactant may be ethylene glycol; the chain extender can be one of chain extenders such as diisocyanate, bicyclic anhydride, diepoxy compounds and the like; the catalyst can be one of antimony trioxide, nickel-based catalysts, cobalt-based catalysts and the like.
When the material of the protective film 52 is TPU, the first reactant may be a short-chain diol (e.g., butanediol, hexanediol, or an aromatic diol); the second reactant can be a diisocyanate group (e.g., diphenylmethane diisocyanate, hexamethylene diisocyanate, etc.); the chain extender can be one of chain extenders such as urethane group, diphenylmethane diisocyanate and the like; the catalyst can be one of stannous octoate, organic bismuth, organic zinc, bismuth zinc and other compound catalysts.
When the material of the protective film 52 is PI, the first reactant may be dianhydride; the second reactant may be a diamine; the chain extender can be one of chain extenders such as diisocyanate, bicyclic anhydride, diepoxy compounds and the like; the catalyst can be acetic anhydride or tertiary amine catalyst.
It is understood that the first reactant, the second reactant, the chain extender and the catalyst are only exemplified in the embodiments of the present application, but not limited to the above examples, and when the material of the protective film is changed, the first reactant, the second reactant, the chain extender and the catalyst may be adjusted accordingly.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a capsule 521 according to some embodiments of the present application, in which at least a first reactant 522a and a second reactant 522b are isolated from each other and disposed in the same capsule 521; when the protective film 52 is broken or cracked, the capsule 521 is punctured or opened by force, so that the first reactant 522a and the second reactant 522b are released from the capsule 521, and the first reactant 522a and the second reactant 522b contact and react to repair the broken part of the protective film 52. In other words, capsule 521 has at least two isolated chambers formed therein, wherein one chamber contains first reactant 522a and the other chamber contains second reactant 522 b. It is understood that at least one of the chain extender and the catalyst may be contained within the same capsule 521 as the first reactant 522a and the second reactant 522b, or may be contained within a different capsule 521 from the first reactant 522a and the second reactant 522 b.
For example, two isolated chambers are formed in the capsules 521, the first reactant 522a and the second reactant 522b are contained in one capsule 521, and the chain extender and the catalyst are contained in the other capsule 521. Alternatively, two of the first reactant 522a, the second reactant 522b, the chain extender, and the catalyst are contained in one capsule 521, and the other two are contained in another capsule 521.
For another example, a capsule 521 has three isolated chambers formed therein, one of which contains a first reactant 522a, the other of which contains a second reactant 522b, and the other of which contains one of a chain extender and a catalyst; the other of the chain extender and the catalyst is contained in another capsule 521. Alternatively, three of the first reactant 522a, the second reactant 522b, the chain extender, and the catalyst are contained in one capsule 521, and the other is contained in another capsule 521.
For another example, four isolated chambers are formed in the capsule 521, and the first reactant 522a, the second reactant 522b, the chain extender and the catalyst are contained in different chambers of one capsule 521.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a capsule 521 according to another embodiment of the present disclosure, at least two groups of capsules (521a, 521b) are disposed in the protective film 52, and a first reactant 522a and a second reactant 522b are respectively accommodated in the two groups of capsules (521a, 521 b); when the protective film 52 is broken, the capsule 521 is punctured, so that the capsule 521 releases the first reactant 522a and the second reactant 522b, and a reaction occurs between the first reactant 522a and the second reactant 522b to repair the broken part of the protective film 52. In other words, at least a first capsule 521a and a second capsule 521b are provided in the protective film 52, the first capsule 521a contains the first reactant 522a, and the second capsule 521b contains the second reactant 522 b; when the protective film 52 is broken, the first capsule 521a and the second capsule 521b are pierced, and the first reactant 522a and the second reactant 522b are released for repair.
Further, one of the chain extender and the catalyst is provided in the first capsule 521a, and the other is provided in the second capsule 521 b. Preferably, one of the chain extender and the catalyst is disposed within the first capsule 521a and is spaced apart from the first reactant 522 a; the other is disposed within second capsule 521b and is isolated from second reactant 522 b. Of course, both the chain extender and the catalyst may be provided in the first capsule 521a or the second capsule 521 b.
Of course, in other embodiments, the protective film 52 is provided with a first capsule 521a, a second capsule 521b, a third capsule and/or a fourth capsule therein, and the third capsule and/or the fourth capsule are configured to contain at least one of the chain extender and the catalyst. When the protective film 52 is broken, the first capsule 521a, the second capsule 521b, the third capsule and/or the fourth capsule are punctured, and the first reactant 522a, the second reactant 522b, the chain extender and the catalyst are released to repair.
It is understood that the above description is only exemplary of the embodiment in which the first reactant 522a, the second reactant 522b, the chain extender and the catalyst are contained in the capsule 521, and the purpose is to describe that before the capsule 521 is punctured, the first reactant 522a, the second reactant 522b, the chain extender and the catalyst are prevented from chemical reaction, and the purpose of repairing the damaged part of the protective film is achieved by providing mutually isolated chambers or providing different types of capsules for isolation, so that the substances contact with each other to react during the process of releasing the substances from the capsules.
Furthermore, when the protective film is damaged, the capsule is stressed to be punctured or opened to release a reactant, and in the process of reacting the reactant to repair the protective film, the reaction rate can be accelerated through heat source radiation or illumination conditions, so that the repair efficiency can be improved.
It can be understood that the capsule in the foregoing embodiments may also be disposed in the flexible screen, so that when the flexible screen is broken and cracked, the capsule is punctured by a force or opened to release a reactant, thereby completing repair of the flexible screen and prolonging the service life of the flexible screen. For example, referring to fig. 8, fig. 8 is a schematic structural diagram of a flexible screen 51 according to another embodiment of the present disclosure, where the flexible screen 51 generally includes a substrate layer 513, a device layer 514, and an encapsulation layer 515, which are sequentially stacked, and a capsule may be disposed in at least one of the substrate layer 513, the device layer 514, and the encapsulation layer 515 for repairing a damage.
The base layer 513 may be a flexible substrate made of a polyimide resin, but is not limited thereto. The device layer 514 is disposed on the substrate layer 513, and the device layer 514 includes electronic elements required for the flexible panel to emit light and other structures, such as but not limited to a thin film transistor device, an organic light emitting diode device, a module layer, and a circuit wiring, which are well known to those skilled in the art, and therefore, these structures are not described in detail in the present specification. The encapsulation layer 515 is disposed on the device layer 514, and the encapsulation layer 515 may be formed by using silicon oxide as a raw material, but is not limited thereto. The capsules are disposed within at least one of the base layer 513, the device layer 514, and the encapsulation layer 515, respectively. Of course, the construction of the flexible screen is not so limited, and those skilled in the art may select other flexible screens in accordance with the teachings of the present implementation.
Referring to fig. 9 to 11, fig. 9 to 11 are schematic structural diagrams of a display screen assembly 50 in other embodiments of the present application, where the display screen assembly 50 may further include an elastic layer 53, as shown in fig. 9, the elastic layer 53 may be disposed on a side of the encapsulation layer 515 away from the device layer 514, as shown in fig. 10, between the encapsulation layer 515 and the device layer 514, or as shown in fig. 11, between the base layer 513 and the device layer 514. Among them, the elastic layer 53 has high viscosity, high elasticity and cushioning resistance. Stress is dispersed through smooth structure under the exogenic action, reduces the material surface damage that stress concentration leads to, simultaneously, utilizes the characteristic of elastic layer 53, can restore mar, crease etc. fast.
In some embodiments, the elastic layer 53 is disposed on a side of the encapsulation layer 515 facing away from the device layer 514, and the thickness of the elastic layer 53 is generally not greater than 100 μm. The elastic layer 53 may also be disposed between the encapsulation layer 515 and the device layer 514, in which case the thickness of the elastic layer 53 is typically no more than 50 microns. The elastic layer 53 may also be disposed between the substrate layer 513 and the device layer 514, in which case the thickness of the elastic layer 53 is generally not less than 50 microns. Of course, in some embodiments, the base layer may be eliminated, with the elastic layer 53 being the base layer.
The elastic layer 53 may be made of a material having a certain elasticity, such as nitrile rubber, hydrogenated nitrile rubber, ethylene propylene diene monomer, chloroprene rubber, silicone rubber, fluorosilicone rubber, fluororubber, or perfluoro ether rubber. Of course, in some embodiments, the elastic layer 53 may also be made of one or more of the above materials. For example, one or more of nitrile rubber, hydrogenated nitrile rubber, ethylene propylene diene rubber, chloroprene rubber, silicone rubber, fluorosilicone rubber, fluororubber, perfluoroether rubber, and the like may be melted, sufficiently mixed by means of pressure, ultrasound, stirring, and the like, and then molded by means of molding such as solid phase sintering, chemical vapor infiltration molding, chemical vapor deposition molding, and the like. When the surface of the protective film 52 is subjected to external force or repeatedly bent to cause damage, the damage caused by the surface of the protective film 52 can be repaired by utilizing the characteristics of the elastic layer 53. It is understood that the elastic layer 53 may be made of fiber, resin, or other materials having certain elasticity.
Further, the composition ratio of the material in the elastic layer 53 can be adjusted to ensure better cushioning performance and fatigue performance of the elastic layer 53. In general, the shore hardness of the elastic layer 53 is not more than 50 degrees, the elongation is not less than 400%, the tensile strength is not less than 20MPa, and the damping ratio is 10% -50% by adjusting the component ratio of the materials in the elastic layer 53. Wherein the thickness of the elastic layer 53 is generally not more than 100 microns and the transparency of the elastic layer 53 is generally not less than 85%. Preferably, the thickness of the elastic layer 53 does not exceed 50 microns.
In one embodiment, the flexible screen 51 generally includes a substrate layer 513, a device layer 514, and an encapsulation layer 515, which are sequentially stacked, wherein the protection film 52 is disposed on a side of the encapsulation layer 515 facing away from the device layer 514. In other words, the device layer 514 is disposed between the base layer 513 and the encapsulation layer 515, and the encapsulation layer 515 is disposed on a side of the device layer 514 adjacent to the protective film 52. It is understood that the substrate layer 513 may be made of Polyimide Film (PI Film), Polycarbonate (PC), Polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polyarylate (PAR), or glass Fiber Reinforced Plastic (FRP). The device layer 514 may include a thin film transistor array layer, an anode layer, a light emitting layer, and a cathode layer, which are sequentially stacked. Most of the thin film transistor array layer is provided with a thin film transistor, a data line, a scanning line and other structural film layers. The anode layer is typically made of a transparent conductive metal Oxide, such as ITO (Indium Tin Oxide) or IZO (Indium zinc Oxide). The light-emitting Layer generally includes a Hole Transport Layer (HTL) made of an organic material, an Emissive Material Layer (EML), an Electron Transport Layer (ETL), and the like, and is mainly used to represent a picture and different colors. The cathode layer is typically made of a semi-transparent semi-reflective conductive metal, such as one of the alloys Mg/Ag, Ca/Al, Mg/MgAg, Gd/Al, Al/Li, Sn/Al, and Ag/Al, to prevent water and oxygen from adversely affecting the low work function metal cathode layer. The encapsulation layer 515 may include a plurality of inorganic and/or organic layers alternately stacked, and is mainly used to block the corrosion of water, oxygen, etc. in the external environment to the light emitting layer, thereby prolonging the service life of the light emitting layer.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a display panel assembly 50 according to another embodiment of the present disclosure, where the display panel assembly 50 may further include an elastic layer 53, where the elastic layer 53 may be disposed between the encapsulation layer 515 and the protection film 52, and a thickness of the elastic layer 53 is generally not more than 100 μm. The elastic layer 53 may also be disposed between the encapsulation layer 515 and the device layer 514, in which case the thickness of the elastic layer 53 is typically no more than 50 microns. The elastic layer 53 may also be disposed between the substrate layer 513 and the device layer 514, in which case the thickness of the elastic layer 53 is generally not less than 50 microns. Of course, in some embodiments, the base layer may be eliminated, with the elastic layer 53 being the base layer.
The display screen subassembly and electronic equipment that this application embodiment provided through be equipped with the capsule in the protection film to be equipped with the reactant in the capsule, when the protection film takes place damaged crack, the capsule atress is in order to release the reactant, and then accomplishes the restoration to the protection film, prolongs the life of protection film or even display screen subassembly. In addition, the reactants comprise a first reactant and a second reactant, and the first reactant and the second reactant react when in contact to generate a filler and fill the crack at the breakage to repair. It can be understood that different reactants can be selected according to actual needs, different types of protective films can be formed, and the diversity of products can be enriched. In addition, the elastic layer is arranged between the flexible screen and the protective film, so that when the surface of the protective film is subjected to external force or repeatedly bent to cause trace damage, the trace damage on the surface of the protective film can be repaired by utilizing the characteristic of the elastic layer. To sum up, this application embodiment sets up the protection film through on flexible screen surface, both can realize restoreing the damaged crackle of protection film, can also restore the vestige damage on protection film surface to this promotes its life and promotes the product expressive force of electronic equipment complete machine.
It is noted that the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (16)
1. A display screen assembly is characterized by comprising a flexible screen and a protective film arranged on the flexible screen;
the protective film is internally provided with a capsule, and a first reactant and a second reactant which are mutually isolated are arranged in the capsule;
when the protective film cracks, the capsule is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks.
2. The display screen assembly of claim 1, wherein at least a first reactant and a second reactant are isolated from each other within the same capsule; wherein, when the protective film cracks, the capsule is forced to release the first reactant and the second reactant.
3. The display screen assembly of claim 1, wherein at least two groups of capsules are disposed in the protective film, and a first reactant and a second reactant are respectively accommodated in the two groups of capsules; wherein, when the protective film cracks, the capsule is forced to release the first reactant and the second reactant.
4. The display screen assembly according to claim 2 or 3, wherein a chain extender and a catalyst are further arranged in the capsule, and the chain extender and the catalyst are contained in the same capsule or are contained in different capsules; wherein, when the protective film cracks, the capsule is stressed to release the chain extender and the catalyst.
5. The display screen assembly of claim 4, wherein the capsule is formed of a material that is compatible with the protective membrane.
6. The display screen assembly of claim 4, wherein the filler is formed of a material consistent with a material of the protective film.
7. The display screen assembly of claim 4, wherein the protective film is made of polyimide, colorless polyimide, polyethylene terephthalate, or a thermoplastic polyurethane elastic layer.
8. The display screen assembly of claim 4, wherein the capsules have a particle size of no more than 20 microns.
9. The display screen assembly of claim 8, wherein the display screen assembly comprises a flexible screen, a protective membrane disposed on the flexible screen, and an elastic layer disposed between the flexible screen and the protective membrane; the elastic layer has a Shore hardness of not more than 50 degrees, an elongation of not less than 400%, a tensile strength of not less than 20MPa, and a damping ratio of not less than 10% and not more than 50%.
10. A display screen assembly is characterized by comprising a display screen and an elastic layer, wherein the display screen comprises a packaging layer, a device layer and a substrate layer, and at least one of the packaging layer, the device layer and the substrate layer is provided with the elastic layer; wherein the elastic layer has a Shore hardness of not more than 50 degrees, an elongation of not less than 400%, a tensile strength of not less than 20MPa, and a damping ratio of not less than 10% and not more than 50%.
11. The display screen assembly of claim 10, wherein the elastic layer is disposed on a side of the encapsulation layer facing away from the device layer, wherein the elastic layer has a thickness of no more than 50 μm and a transparency of no less than 85%.
12. The display screen assembly of claim 10, wherein the elastic layer is disposed between the encapsulation layer and the device layer, the elastic layer having a thickness of no more than 50 μm and a transparency of no less than 85%.
13. The display screen assembly of claim 10, wherein the elastic layer has a thickness of no less than 50 μ ι η when the elastic layer is disposed between the substrate layer and the device layer.
14. A display screen assembly is characterized by comprising a flexible screen and a protective film arranged on the flexible screen; the protective film and the flexible screen are both internally provided with capsules, and a first reactant and a second reactant which are mutually isolated are arranged in the capsules;
when the protective film cracks, the capsules in the protective film are stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the protective film;
when the flexible screen cracks, the capsules in the flexible screen are stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the flexible screen;
when the protective film and the flexible screen are cracked, the capsule in the protective film is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filler, and the filler is filled in the cracks of the protective film; the first reactant and the second reactant are released by the capsule in the flexible screen under the stress, the first reactant and the second reactant are contacted and react to form a filler, and the filler is filled in the cracks of the flexible screen.
15. A flexible screen is characterized in that a capsule is arranged in the flexible screen, and a first reactant and a second reactant which are mutually isolated are arranged in the capsule;
when the flexible screen cracks, the capsule is stressed to release the first reactant and the second reactant, the first reactant and the second reactant are contacted to react to form a filling material, and the filling material is filled in the cracks.
16. An electronic device comprising a housing and the display screen assembly of any one of claims 1-14; the shell is provided with a folding mechanism, and the display screen assembly can be folded through the folding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210163234.2A CN114550590A (en) | 2022-02-22 | 2022-02-22 | Flexible screen, display screen assembly and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210163234.2A CN114550590A (en) | 2022-02-22 | 2022-02-22 | Flexible screen, display screen assembly and electronic equipment |
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| CN114550590A true CN114550590A (en) | 2022-05-27 |
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| CN202210163234.2A Withdrawn CN114550590A (en) | 2022-02-22 | 2022-02-22 | Flexible screen, display screen assembly and electronic equipment |
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