CN216817709U

CN216817709U - Folding screen assembly and intelligent terminal with same

Info

Publication number: CN216817709U
Application number: CN202122994713.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Suzhou Sierwei Nanotechnology Co ltd
Current assignee: Suzhou Sierwei Nanotechnology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-24
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a folding screen component, which comprises a plurality of cover plates, wherein gaps are arranged among the plurality of cover plates to form bending areas, the bending areas are used for bending or unfolding the plurality of cover plates, the plurality of cover plates are connected through a support component, and the support component comprises: a flexible film connecting the plurality of cover plates by an adhesive layer; and the filling layer is used for filling the bending area. Through the mode, the split type first glass plate and the split type second glass plate have supporting and protecting properties, and have a good bending effect at present.

Description

Folding screen assembly and intelligent terminal with same

Technical Field

The utility model relates to the technical field of folding screens, in particular to a folding screen assembly and an intelligent terminal with the same.

Background

The existing mainstream folding screen cover plates mainly comprise two types, one type is ultra-thin glass UTG which takes inorganic materials as main bodies, the price is extremely high, and the impact resistance is poor; one kind is transparent polyimide film CPI with organic material as main component and has high cost and soft material.

Both materials have their major drawbacks, UTG being poor impact resistance, very brittle, soft CPI texture, insufficient surface hardness, and poor scratch resistance.

SUMMERY OF THE UTILITY MODEL

The technical problem mainly solved by the utility model is to provide the folding screen assembly and the intelligent terminal with the folding screen assembly, so that the split first glass plate and the split second glass plate can obtain supporting and protecting performances, and a good bending effect is achieved at present.

In order to solve the above technical problems, a first aspect of the present invention employs a technical solution: the utility model provides a folding screen subassembly, includes a plurality of apron, and is a plurality of all be equipped with the clearance between the apron and form bending region, bending region is used for a plurality of buckle or expand between the apron, and is a plurality of the apron passes through the supporting component to be connected, the supporting component includes:

a flexible film connecting the plurality of cover plates by an adhesive layer;

and the filling layer is used for filling the bending area.

According to a specific implementation manner of the embodiment of the disclosure, the flexible film further comprises a protective layer, and the protective layer is coated on the outer side face, far away from the adhesive layer, of the flexible film.

According to a specific implementation manner of the embodiment of the disclosure, the cover plates comprise a first glass plate and a second glass plate which have the same thickness, and the thickness of the cover plates ranges from 30 μm to 750 μm.

According to a specific implementation manner of the embodiment of the present disclosure, the bonding layer and the filling layer are both made of optical cement OCA.

According to a specific implementation manner of the embodiment of the present disclosure, the flexible film is a flexible folded polymer film, and the thickness range of the flexible film is 10 to 250 μm.

According to a specific implementation manner of the embodiment of the disclosure, the flexibly folded polymer film is one or more of a PET film, a CPI film, a COP film, a PE film, a BOPET film and a TPU film.

According to a specific implementation manner of the embodiment of the disclosure, the thickness of the filling layer is the same as the thickness of the first glass plate and the second glass plate; the thickness range of the bonding layer is 15-500 mu m.

According to a specific implementation manner of the embodiment of the disclosure, the protective layer is a flexible fold-hardened coating, and the thickness range is 0.5-50 μm.

In a second aspect, an intelligent terminal provided in an embodiment of the present invention includes the above folding screen assembly.

The folding screen assembly and the intelligent terminal with the same have the beneficial effects that:

1. the bending areas of the first glass plate and the second glass plate are connected through the filling layer, and the first glass plate, the second glass plate and the filling layer are sequentially connected with the flexible folding polymer film and the flexible folding hardening coating through the bonding layer, so that the split first glass plate and the split second glass plate can obtain the supporting and protecting performance of glass, and have a good bending effect at present;

2. the filling layer and the bonding layer are both optical cement OCAs, and are adhered to an upper layer and a lower layer simultaneously, so that the optical cement OCAs have softer properties and are used for filling, connecting and releasing stress; the flexibly folded high polymer film is made of an insulating material, adopts one or more of a polyester resin film, a polyimide film, a cycloolefin polymer film, a polyethylene film, a biaxially oriented polyester film and a thermoplastic polyurethane elastomer rubber film, and has better supporting force and high light transmittance; the flexible folding hardened coating is used for protecting the internal structure of the flexible folding hardened coating from physical damage, and has high hardness, friction resistance, fingerprint resistance and good bending performance.

3. The bending performance is not influenced, and the supporting and protecting effects are achieved to the greatest extent;

4. on the folding screen of intelligent terminal, have had the region that can fold simultaneously and the region that can touch.

Drawings

Figure 1 is a schematic view of a folding screen assembly according to the present invention.

100. A folding screen assembly; 110. a cover plate; 111. a first glass plate; 112. a second glass plate; 120. a filling layer; 130. an adhesive layer; 140. a flexible film; 150. and hardening the coating.

Detailed Description

The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In a first aspect, referring to fig. 1, the present embodiment provides a foldable screen assembly 100, which includes a plurality of cover plates 110, and a gap is formed between each of the plurality of cover plates 110 to form a bending area, where the bending area is used for bending or unfolding between the plurality of cover plates 110, and the plurality of cover plates 110 are connected by a support assembly, where the support assembly includes:

a flexible film 140, wherein the flexible film 140 connects a plurality of the cover plates 110 by an adhesive layer 130;

and a filling layer 120 for filling the bending region.

Specifically, the plurality of cover plates 110 includes a first glass plate 111 and a second glass plate 112.

When the first glass plate 111 and the second glass plate 112 need to be bent to have an angle or even overlap two planes, the filling layer 120 and the flexible film 140 in the bending area can be bent to a certain angle, so that the connection and support functions are achieved, and when the first glass plate 111 and the second glass plate 112 are unfolded in the recovery position, the filling layer 120 and the flexible film 140 in the bending area are converted into a straight state from a bent radian state.

Specifically, the first glass plate 111 and the second glass plate 112 have the same thickness, and the thickness ranges from 30 μm to 750 μm.

The thickness of the filling layer 120 is the same as the thickness of the first glass plate 111 and the second glass plate 112; the thickness range of the bonding layer is 15-500 mu m.

According to a specific implementation manner of the embodiment of the present disclosure, the adhesive layer 130 and the filling layer 120 are both made of an optical adhesive OCA.

Specifically, since the first glass plate 111 and the second glass plate 112 do not need to be bent, the stiffness of the entire assembly is improved by increasing the thickness thereof. Since the first glass plate 111 and the second glass plate 112 need to be bonded with the optical cement OCA, if the thickness is more than 750 μm, the bonding yield is low; if the thickness is too thin < 30 μm, the cost is too high, and the glass sheet is not sufficiently stiff and brittle.

The optical adhesive OCA is one of main raw materials of the touch screen, is prepared by manufacturing optical acrylic adhesive without a base material, and then respectively laminating a layer of film on the upper layer and the lower layer of the optical acrylic adhesive, is a double-sided laminating adhesive tape without base material data, and is the best adhesive of the touch screen.

The optical adhesive OCA has the advantages of clarity, high light transmittance (total light transmittance is more than 99%), high adhesive force, high weather resistance, water resistance, high temperature resistance, ultraviolet resistance, controlled thickness and uniform distance supply, and cannot generate the problems of yellowing (yellowing), peeling and disintegration after long-term use.

In the bending process of the first glass plate 111 and the second glass plate 112, the middle bending area can be subjected to very large stress, a softer material is needed for stress release, and an upper layer structure and a lower layer structure can be adhered, so that the optical cement OCA is filled in the bending area to form the filling layer 120, then the optical cement OCA is coated on the first glass plate 111 and the second glass plate 112, the filling layer 120 is also coated with the optical cement OCA coated on the first glass plate 111 and the second glass plate 112 for the second time to form the bonding layer 130, if the thickness of the bonding layer 130 is too thick, the hardness, the friction resistance and the reduction of the protection effect of the whole cover plate are caused by the naturally soft property of the OCA, and the thickness range of the bonding layer 130 is most suitable in the range of 15-500 micrometers.

According to a specific implementation manner of the embodiment of the present disclosure, the flexible film 140 is a flexible folded polymer film, and has a thickness ranging from 10 μm to 250 μm.

The flexible film 140 of the present application requires high transmittance and low haze, and if the flexible film 140 is too thick, the bending performance is affected, and cracks and fractures occur; if the flexible film is too thin, the support effect is not significant and creases tend to occur.

According to a specific implementation manner of the embodiment of the present disclosure, the flexibly folded Polymer film is one or more of a PET (Polyethylene terephthalate) film, a CPI (Thermoplastic Polyimide) film, a COP (Cyclo Olefin Polymer) film, a PE (Polyethylene) film, a BOPET (biaxially oriented polyester) film, and a TPU (Thermoplastic polyurethane elastomer rubber) film.

According to a specific implementation manner of the embodiment of the present disclosure, the flexible film further includes a protective layer 150, and the protective layer 150 is coated on an outer side surface of the flexible film 140 away from the adhesive layer 130.

According to a specific implementation manner of the embodiment of the present disclosure, the protective layer 150 is a flexible fold-hardened coating, and has a thickness ranging from 0.5 μm to 50 μm.

The flexible folding hardened coating mainly has the main functions of protecting the internal structure from physical damage, and needs to have higher hardness, better friction resistance, better fingerprint resistance, better bending performance, higher transmittance and lower haze, and if the flexible folding hardened coating is too thick, the bending performance is affected; if the flexible fold-hardening coating is too thin, the protection effect is not good, and the internal structure is easily damaged.

Specifically, the intelligent terminal may include a plurality of sets of the above-mentioned folding screen assemblies.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a folding screen subassembly, its characterized in that includes a plurality of apron, and a plurality of all be equipped with the clearance between the apron and form bending zone, bending zone is used for a plurality of buckle or expand between the apron, it is a plurality of the apron passes through supporting component to be connected, supporting component includes:

a flexible film connecting the plurality of cover plates by an adhesive layer;

and the filling layer is used for filling the bending area.

2. The folding screen assembly of claim 1 further comprising a protective layer applied to an outer side of the flexible film remote from the adhesive layer.

3. The folded screen assembly of claim 1, wherein the plurality of cover sheets comprise first and second glass sheets of the same thickness, and the thickness is in the range of 30-750 μm.

4. The folded screen assembly of claim 1, wherein the adhesive layer and the filler layer are both made of a material that is an optical adhesive (OCA).

5. The folded screen assembly of claim 1, wherein the flexible film is a flexible folded polymeric film and has a thickness in the range of 10-250 μm.

6. The folding screen assembly of claim 5, wherein the flexible folded polymeric film is one or more of a PET film, a CPI film, a COP film, a PE film, a BOPET film, a TPU film.

7. The folding screen assembly of claim 1, wherein the filler layer has a thickness that is the same as a thickness of the first and second glass sheets; the thickness range of the bonding layer is 15-500 mu m.

8. The folding screen assembly of claim 2, wherein the protective layer is a flexible fold-hardening coating and has a thickness in the range of 0.5 μm to 50 μm.

9. An intelligent terminal comprising the folding screen assembly of any one of claims 1-8.