KR20170090339A - Transparent protective layer and electronic apparatus comprising the same - Google Patents

Abstract

A transparent protective layer according to various embodiments includes: a first transparent plate having a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction; and an adhesive layer disposed on the second surface of the first transparent plate, wherein the adhesive layer may include: a first adhesive layer having a first adhesive force; and a second adhesive layer having a second adhesive force, which is less than the first adhesive force. An electronic device according to various embodiments includes: a display; a first transparent plate arranged in at least one direction from the display, and having a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction; a second transparent plate arranged on the second surface of the first transparent plate, and having a first surface facing in the first direction and a second surface facing in the second direction; and an adhesive layer disposed between the second surface of the first transparent plate and the first surface of the second transparent plate, wherein the adhesive layer includes: a first adhesive layer having a first adhesive force; and a second adhesive layer having a second adhesive force, which is less than the first adhesive force. The transparent protective layer is provided with the first transparent plate, the adhesive layer and the second transparent plate, thereby having high surface hardness and scratch resistance.

Description

TECHNICAL FIELD [0001] The present invention relates to a transparent protective layer and an electronic device including the transparent protective layer.

Various embodiments relate to a transparent protective layer and an electronic device comprising the same.

Various electronic devices, such as a smartphone, tablet personal computer, or mobile phone, have a transparent protective layer to protect the configuration contained in the electronic device. Such a transparent protective layer forms the outer surface of the electronic device and can prevent foreign matter from penetrating into or penetrating into the inside of the electronic device.

However, since the transparent protective layer as described above is exposed to the outside, the possibility of damage such as scratch or breakage is very high. This becomes more serious when the touch screen type smartphone is in contact with the user. On the other hand, if the transparent protective layer as described above is damaged, it needs to be replaced.

A transparent protective layer according to various embodiments includes a first transparent plate including a first surface facing the first direction and a second surface facing the second direction opposite to the first direction; And an adhesive layer disposed on the second surface of the first transparent plate, wherein the adhesive layer comprises: a first adhesive layer having a first adhesive force; And a second adhesive layer having a second adhesive force lower than the first adhesive force.

An electronic device according to various embodiments includes: a display; A first transparent plate disposed in at least one direction with respect to the display and including a first surface facing the first direction and a second surface facing the second direction opposite to the first direction; A second transparent plate disposed on the second surface of the first transparent plate, the second transparent plate including a first surface facing the first direction and a second surface facing the second direction; And an adhesive layer disposed between the second surface of the first transparent plate and the first surface of the second transparent plate, the adhesive layer comprising: a first adhesive layer having a first adhesive force; And a second adhesive layer having a second adhesive force lower than the first adhesive force.

In various embodiments, since the transparent protective layer includes the first transparent plate, the adhesive layer, and the second transparent plate, high surface hardness and scratch resistance can be secured. Therefore, the appearance quality can be improved. In addition, in various embodiments, it is possible to prevent damage due to a partial impact or drop impact.

In various embodiments, the first transparent plate can be easily separated from the second transparent plate through the adhesive layer. Therefore, when replacement of the first transparent plate is required, the first transparent plate can be cleanly separated. That is, at the time of separating the first transparent plate, the adhesive material does not remain on the second transparent plate and can be separated without being tacky. Therefore, when replacing the first transparent plate, foreign matter can be prevented from adhering to the second transparent plate. As a result, the transparent protective layer can be reassembled.

Further, according to various embodiments, the adhesive layer may further comprise a third transparent plate. Through the third transparent plate, the laminating process of the transparent protective layer including the first transparent plate, the adhesive layer and the second transparent plate can be easily carried out.

In various embodiments, a high surface hardness and scratch resistance of an electronic device can be ensured through an electronic device provided with a transparent protective layer. Further, replacement of the transparent protective layer is easy, and the appearance quality of the electronic device can be secured. In various embodiments, various configurations disposed below the transparent protective layer may be protected from impact.

1 is a perspective view of a transparent protective layer according to various embodiments.
2 is an exploded perspective view of a transparent protective layer according to various embodiments.
3 is a cross-sectional view taken along the line I-I 'in Fig.
4 (a) and 4 (b) are cross-sectional views of a transparent protective layer according to various embodiments.
Figures 5 (a) and 5 (b) are cross-sectional views of a transparent protective layer according to various embodiments.
6 is a perspective view of a transparent protective layer according to various embodiments.
7 is a cross-sectional view taken along line II-II 'of FIG.
8 is a perspective view of an electronic device including a transparent protective layer according to various embodiments.
9 is an exploded perspective view of an electronic device according to various embodiments.
10 (a) and 10 (b) are cross-sectional views taken along III-III 'of FIG. 9 according to various embodiments.
11 is a perspective view of an electronic device according to various embodiments.
12 is a cross-sectional view taken along line IV-IV 'in FIG.
13 is a perspective view of an electronic device according to various embodiments.
14 is a cross-sectional view taken along line V-V 'in Fig.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that this disclosure is not intended to limit the present disclosure to the particular embodiments, but includes various modifications, equivalents, and / or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for similar components.

In this document, the expressions "having," " having, "" comprising," or &Quot;, and does not exclude the presence of additional features.

In this document, the expressions "A or B," "at least one of A or / and B," or "one or more of A and / or B," etc. may include all possible combinations of the listed items . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) at least one A, (2) at least one B, (3) at least one A and at least one B all together.

The terms "first," "second," "first," or "second," etc. used in various embodiments may describe various components in any order and / or importance, Lt; / RTI > The representations may be used to distinguish one component from another. For example, the first user equipment and the second user equipment may represent different user equipment, regardless of order or importance. For example, without departing from the scope of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may be named as the first component.

It is also possible that a component (eg, a first component) is "(operatively or communicatively coupled) / to" another component (eg, a second component) It is to be understood that when an element is referred to as being "connected to ", it is to be understood that the element may be directly connected to the other element or may be connected through another element (e.g., a third element). On the other hand, when it is mentioned that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component) It can be understood that there is no other component (e.g., a third component) between other components.

The phrase " configured to " as used herein is intended to encompass, depending on the context, for example, having the ability to be suitable for, The present invention may be used interchangeably with "designed to," "adapted to," "made to," or "capable of". The term " configured to (or configured) "may not necessarily mean specifically designed to be" specifically designed. "Instead, in some circumstances, the expression" a device configured to " (Or set) to perform phrases A, B, and C. For example, a processor " configured (or configured) to perform phrases A, B, and C " (E. G., An embedded processor), or a generic-purpose processor (e. G., A CPU or application processor) capable of performing the operations by executing one or more software programs stored in the memory device.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present disclosure. Commonly used predefined terms may be interpreted to have the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in meaning unless expressly defined in this document . In some cases, the terms defined herein may not be construed to exclude embodiments of the present disclosure.

1 is a perspective view of a transparent protective layer according to various embodiments. 2 is an exploded perspective view of a transparent protective layer according to various embodiments. 3 is a cross-sectional view taken along the line I-I 'in Fig.

1 to 3, the transparent protective layer 100 according to various embodiments may include a first transparent plate 110 and an adhesive layer 130. Alternatively, the transparent protective layer 100 according to various embodiments may further include a second transparent plate 150. The transparent protective layer 100 according to various embodiments may be provided in various electronic devices including a display such as a smartphone, a tablet personal computer (PC), a mobile phone, and the like. The transparent protective layer 100 may be provided on the outer surface of various electronic devices. The transparent protective layer 100 may be disposed on the front or rear surface of various electronic devices. The transparent protective layer 100 may protect the internal structures of various electronic devices.

The first transparent plate 110 may include a first surface 110a and a second surface 110b. The first surface 110a may be a surface that faces the first transparent plate 110 in the first direction D1. The second surface 110b may be a surface that faces the first transparent plate 110 in the second direction D2.

The first transparent plate 110 may include a high hardness sheet including a polymer material. For example, the first transparent plate 110 may be made of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PE), polyethylene terephthalate (PET) Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate (PEN), polyethylene terephthalate glycol (PETG), triacetyl (CO), cyclic olefin copolymer (COC), polydicyclopentadiene (DCPD), cyclopentadiene polymer (COP), and the like. cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulfone (PES), poly Imide may include (poly ether imide, PEI), to any one or combination of two or more selected from a modified epoxy resin or an acrylic resin.

For example, the first transparent plate 110 may be a laminate of a PC sheet and a PMMA sheet. Alternatively, the first transparent plate 110 may be a single layer PMMA sheet. Alternatively, the first transparent plate 110 may be an optical PC sheet. Alternatively, the first transparent plate 110 may comprise a copolymer of PMMA and special PMMA. Alternatively, the first transparent plate 110 may be a PI sheet. Alternatively, the first transparent plate 110 may comprise a copolymer of PC and PI. Alternatively, the first transparent plate 110 may comprise a copolymer of PMMA and PI.

However, the embodiment is not limited thereto, and the first transparent plate 110 may include glass. In the case where the first transparent plate 110 includes glass, a high surface hardness can be secured and a good bodily sensation quality can be provided to the user. Further, by securing a high Young's modulus, it is possible to prevent a display defect due to a local impact, thereby preventing the occurrence of defective pixels such as a bright spot. However, when the glass is broken, the first transparent plate 110 can be easily AS (replaced) through the adhesive layer 130. However, This will be described later in detail.

The first transparent plate 110 may have a first hardness. The first hardness may be a hardness of pencil hardness 3 H or higher. On the other hand, the second transparent plate 150 may have a second hardness lower than the first hardness. However, the embodiment is not limited thereto, and both the first transparent plate 110 and the second transparent plate 150 may have a hardness. Through the first transparent plate 110, high surface hardness and scratch resistance of the transparent protective layer 100 can be secured. Also, it is possible to prevent the foreign matter from penetrating into the transparent protective layer 100 through the first transparent plate 110, or from sinking.

The adhesive layer 130 may be disposed on the second surface 110b of the first transparent plate 110. [ The adhesive layer 130 may be formed on the second surface 110b of the first transparent plate 110. [ The adhesive layer 130 may be disposed on the first surface 150a of the second transparent plate 150. [ The adhesive layer 130 may be formed on the first surface 150a of the second transparent plate 150. [ The adhesive layer 130 may be disposed between the first transparent plate 110 and the second transparent plate 150. The first transparent plate 110, the adhesive layer 130, and the second transparent plate 150 may be sequentially disposed along the second direction D2. The adhesive layer 130 may include a thickness of 0.02 mm to 0.2 mm.

The adhesive force between the second transparent plate 150 and the adhesive layer 130 may be smaller than the adhesive force between the first transparent plate 110 and the adhesive layer 130. The adhesive force between the first surface 150a of the second transparent plate 150 and the adhesive layer 130 may be lower than the adhesive force between the second surface 110b of the first transparent plate 110 and the adhesive layer 130. [ The first transparent plate 110 and the adhesive layer 130 are bonded to the second transparent plate 150 while the adhesive is being applied to the first transparent plate 110 and the second transparent plate 150, Lt; / RTI >

Specifically, as shown in FIG. 3, the adhesive layer 130 may include a first adhesive layer 301 and a second adhesive layer 303. The first adhesive layer 301 and the second adhesive layer 303 may be sequentially disposed along the second direction D2. The first adhesive layer 301 may be disposed on the second surface 110b of the first transparent plate 110. [ The first adhesive layer 301 may be formed on the second surface 110b of the first transparent plate 110. [ The second adhesive layer 303 may be disposed on the first surface 150a of the second transparent plate 150. [ The second adhesive layer 303 may be formed on the first surface 150a of the second transparent plate 150. [ The adhesive force between the second adhesive layer 303 and the second transparent plate 150 may be lower than the adhesive force between the first adhesive layer 301 and the second adhesive layer 303. [ Therefore, when a force is applied to peel off the first transparent plate 110 and the second transparent plate 150, the first transparent plate 110, the first adhesive layer 301, and the second adhesive layer 303 are bonded together The second transparent plate 150 can be easily detached.

Specifically, the first adhesive layer 301 may have a first adhesive force. The first adhesive force may be from 500 g / in to 2000 g / in. When the first adhesive force is less than 500 g / in, the minimum adhesion between the first transparent plate 110 and the first adhesive layer 301 may be difficult. The first adhesive layer 301 that makes the first adhesive force exceed 2000 g / in may be difficult to implement.

The first adhesive force may vary depending on the kind of the substance contained in the first transparent plate 110 and / or the first adhesive layer 301.

The first adhesive layer 301 may include an acrylic resin. For example, the first adhesive layer 301 may comprise OCA or optically clear resin (OCR). The first adhesive layer 301 may be formed by laminating an OCA film on the first transparent plate 110. Alternatively, the first adhesive layer 301 may be formed by bonding or coating an OCR (optically clear resin) on the first transparent plate 110.

 Alternatively, the first adhesive layer 301 may include a urethane resin. The first adhesive layer 301 may be formed by coating a second surface 110b of the first transparent plate 110 with a urethane resin. For example, the first adhesive layer 301 can be formed by curing the coating liquid by irradiating ultraviolet (UV) light onto the urethane acrylate-based liquid coating liquid. That is, the first adhesive layer 301 may be a urethane coating layer. Alternatively, the first adhesive layer 301 may be a polyurethane film. The first adhesive layer 301 may be formed by laminating a polyurethane film on the first transparent plate 110.

The second adhesive layer 303 may have a second adhesive force lower than the first adhesive force. The second adhesive force may be from 50 g / in to 300 g / in. When the second adhesive force is less than 50 g / in, the minimum adhesion between the second transparent plate 150 and the second adhesive layer 303 may be difficult. If the second adhesive force exceeds 300 g / in, separation between the second transparent plate 150 and the second adhesive layer 303 may not be easy. In various embodiments, the second adhesive force can be from 50 g / in to 300 g / in, so that the second adhesive layer 303 can be easily peeled off from the second transparent plate 150. In various embodiments, if the first transparent plate 110 is broken and replacement is required, the first transparent plate 110 can be easily replaced.

The second adhesive force may vary depending on the kind of the substance contained in the second transparent plate 150 and / or the second adhesive layer 303. For example, in the case where the second adhesive layer 303 includes a pressure sensitive adhesive (PSA), the second transparent plate 150 includes a PC, and the second transparent plate 150 includes glass 2 Adhesion may vary. When the second transparent plate 150 includes PC, the second adhesive force may be about 180 g / in. On the other hand, when the second transparent plate 150 includes glass, the second adhesive force may be about 70 g / in. That is, the second adhesive force in the case where the second transparent plate 150 includes a PC may be twice or more larger than the second adhesive force in the case where the second transparent plate 150 includes glass.

The second adhesive layer 303 may include a silicone resin. For example, the second adhesive layer 303 may be a pressure sensitive adhesive (PSA). The second adhesive layer 303 may be formed by laminating a PSA film on the second transparent plate 150. Alternatively, the second adhesive layer 303 may be formed by laminating the PSA film on the first adhesive layer 301. [ When the second adhesive layer 303 is a PSA film, it can be adhered only by pressure without a separate heat treatment or UV treatment at room temperature.

Alternatively, the second adhesive layer 303 may contain fluorine (F). The second adhesive layer 303 may be formed by coating the first surface 150a of the second transparent plate 150 with fluorine. Alternatively, the second adhesive layer 303 may be formed by coating fluorine on the first adhesive layer 301. For example, the second adhesive layer 303 may be formed by coating a coating solution containing fluorine in various ways. That is, the second adhesive layer 303 may be a fluorine coating layer.

Thus, according to one embodiment of the present invention, the first adhesive layer 301 may comprise an acrylic resin, for example OCA or OCR, and the second adhesive layer 303 may comprise a silicone resin, for example PSA.

According to another embodiment of the present invention, the first adhesive layer 301 may comprise a urethane coating layer, for example a polyurethane film, and the second adhesive layer 303 may comprise a PSA film.

According to another embodiment of the present invention, the first adhesive layer 301 may include an acrylic resin, for example, OCA, and the second adhesive layer 303 may include a fluorine coating layer.

The second transparent plate 150 may be disposed on the second surface 110b of the first transparent plate 110. [ The second transparent plate 150 may include a first surface 150a and a second surface 150b. The first surface 150a may be a surface of the second transparent plate 150 facing the first direction D1. The second surface 150b may be a surface of the second transparent plate 150 facing the second direction D2.

The second transparent plate 150 may include an impact resistant sheet or an optical sheet including a polymer organic material.

For example, the second transparent plate 150 may be made of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PE), polyethylene terephthalate (PET) Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate (PEN), polyethylene terephthalate glycol (PETG), triacetyl (CO), cyclic olefin copolymer (COC), polydicyclopentadiene (DCPD), cyclopentadiene polymer (COP), and the like. cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulfone (PES), poly Imide may include (poly ether imide, PEI), to any one or combination of two or more selected from a modified epoxy resin or an acrylic resin.

For example, the second transparent plate 150 may include a PC sheet. The second transparent plate 150 may be a single layer of a PC sheet.

The second transparent plate 150 may have a double-sided coating or a single-sided coating to improve scratches and the like during processing. When the second transparent plate 150 has a single-sided coating, it is possible to increase the adhesion between various structures disposed under the second transparent plate 150 and the second transparent plate 150. Alternatively, when the second transparent plate 150 has a double-sided coating, the bending property of the transparent protective layer 100 can be improved.

However, the embodiment is not limited thereto, and the second transparent plate 150 may include glass. Alternatively, the second transparent plate 150 may comprise tempered glass. In the case where the second transparent plate 150 includes glass, a high Young's modulus is secured, thereby preventing a display defect due to a local impact, thereby preventing defective pixels such as bright spot, dark spot, and light leakage.

Meanwhile, the first transparent plate 110 may have a first impact strength, and the second transparent plate 150 may have a second impact strength higher than the first impact strength. The second impact strength may be at least 700 J / m. However, the embodiment is not limited thereto, and both the first transparent plate 110 and the second transparent plate 150 can have high impact strength. Therefore, the transparent protective layer 100 can be prevented from being damaged by the partial impact or drop impact or the like through the second transparent plate 150.

In addition, the first transparent plate 110 may have a first Young's modulus, and the second transparent plate 150 may have a second Young's modulus higher than the first Young's modulus. The second Young's modulus may be at least 66 GPa. Accordingly, the transparent protective layer 100 prevents display defects due to a local impact through the second transparent plate 150, thereby preventing defective pixels such as bright spot, dark spot, and light leakage. However, the embodiment is not limited thereto, and both the first transparent plate 110 and the second transparent plate 150 may have a high Young's modulus.

4 (a) and 4 (b) are cross-sectional views of a transparent protective layer according to various embodiments.

4, the adhesive layer 130 may include a first adhesive layer 301, a third transparent plate 401, and a second adhesive layer 303, according to various embodiments. That is, the transparent protective layer 100 according to various embodiments may further include a third transparent plate 401 between the first adhesive layer 301 and the second adhesive layer 303. The laminating process of the first transparent plate 110, the adhesive layer 130, and the second transparent plate 150 can be easily performed through the third transparent plate 401. That is, the adhesive layer 130 is first prepared by forming the first adhesive layer 301 and the second adhesive layer 303 on the third transparent plate 401, and then the first transparent plate 110 or the second transparent plate 150 The transparent protective layer 100 can be manufactured through a laminating process with the transparent protective layer 100. Also, the third transparent plate 401 may allow the second adhesive layer 303 to be easily peeled off from the second transparent plate 150.

The third transparent plate 401 may be a transparent material having a high transmittance. The third transparent plate 401 may be a material capable of forming a thin film. The third transparent plate 401 may include an isotropic film. The isotropic film may include, for example, a COP (Cyclo Olefin Polymer) film, a CPP (Casting polypropylene) film. The isotropic film may be a film produced by a non-drawn or non-drawn process. That is, the third transparent plate 401 may include a non-drawn film or an unstretched film. A film produced by a non-drawn or non-drawn process may have a similar tensile strength in longitudinal and transverse directions. Alternatively, the tensile elongation in the longitudinal direction and the transverse direction may have values similar to each other. For example, the CPP film may have a tensile strength of 80 +/- 30 MPa in the longitudinal direction and 60 +/- 20 MPa in the transverse direction. In addition, the CPP film can have a tensile elongation of 650 ± 300% in the longitudinal direction and 850 ± 300% in the transverse direction. By including the isotropic film in the third transparent plate 401, retardation of light transmitted through the third transparent plate 401 can be reduced. For example, the light transmitted through the third transparent plate 401 may have a retardation of 10 nm or less. Therefore, the distortion of the light can be prevented through the adhesive layer 130 including the isotropic film.

However, the embodiment is not limited thereto, and the third transparent plate 401 may include an anisotropic film. The third transparent plate 401 may be, for example, a polyethylene terephthalate (PET) film or a polypropylene (PP) film. The anisotropic film may be a film produced by a stretching process. Referring to FIG. 4B, in one embodiment of the present invention, the third transparent plate 401 may include at least a first opening 401a. For example, the first opening 401a may be disposed at a position corresponding to the camera. Therefore, even if the third transparent plate 401 includes the anisotropic film, distortion of light transmitted through the adhesive layer 130 through the first opening 401a can be prevented, thereby ensuring the optical performance of the camera. However, according to various embodiments, a third transparent plate comprising an isotropic film may also include openings.

Figures 5 (a) and 5 (b) are cross-sectional views of a transparent protective layer according to various embodiments.

5A, the transparent protective layer 100 according to various embodiments may include a first transparent plate 110, an adhesive layer 130, and a second transparent plate 150. As shown in FIG.

The first transparent plate 110 may include a first layer 501, a second layer 503, a third layer 505, and a fourth layer 507. The first layer 501 may form the first surface 110a of the first transparent plate 110. [ The first layer 501 may comprise fluorine. The first layer 501 may be a fluorine coating layer. The first layer 501 may be an AF (anti-figerprint) coating layer. Through the first layer 501, the surface of the transparent protective layer 100 can be prevented from being contaminated with fingerprints or various contaminants. That is, through the first layer 501, the transparency and stain resistance of the transparent protective layer 100 can be improved. In addition, the water-repellent function of the transparent protective layer 100 can be ensured through the first layer 501.

The second layer 503 may be disposed on the first layer 501. The second layer 503 may be disposed below the first layer 501 along the second direction. The second layer 503 may be a hard coating layer. The second layer 503 may have a hardness of at least 4H of pencil hardness. Through the second layer 503, the surface strength and durability of the first transparent plate 110 can be improved. Further, through the second layer 503, the light transmittance of the first transparent plate 110 can be improved.

The third layer 505 and the fourth layer 507 may be disposed on the second layer 503. The third layer 505 and the fourth layer 507 may be disposed below the second layer 503 along the second direction D2. The third layer 505 and the fourth layer 507 may be a high hardness sheet containing a polymer material. For example, the third layer 505 may be a PMMA sheet and the fourth layer 507 may be a PC sheet. However, the embodiment is not limited thereto, and one layer may be provided instead of the third layer 505 and the fourth layer 507. For example, instead of the third layer 505 and the fourth layer 507, a single layer of PMMA sheet may be provided. Alternatively, an optical PC sheet, which is a single layer instead of the third layer 505 and the fourth layer 507, may be provided. Alternatively, a PI sheet which is a single layer instead of the third layer 505 and the fourth layer 507 may be provided. Alternatively, a single layer may be provided in place of the third layer 505 and the fourth layer 507, and the single layer may comprise a copolymer of PC and PI or a copolymer or glass of PMMA and PI. By improving the surface hardness through the third layer 505 and the fourth layer 507, the occurrence of scratches due to external factors can be minimized.

According to various embodiments, the first adhesive layer 301 may be a urethane coating layer. The first adhesive layer 301 may be formed by coating a urethane coating liquid on the second surface 110b of the first transparent plate 110. [ At this time, the second adhesive layer 303 may be PSA. The second adhesive layer 303 may be formed by coating the second surface 110a of the first transparent plate 110 with a PSA adhesive. Thereafter, the first transparent plate 110 and the second transparent plate 150 may be laminated together. After the first transparent plate 110 and the second transparent plate 150 are joined together, an autoclave process may be further performed. The autoclave may expose the first transparent plate 110 and the second transparent plate 150 which are lined up in the chamber at a high temperature and a high pressure for a certain period of time to remove air bubbles between the adhesive surfaces, .

According to various embodiments, the first adhesive layer 301 may be OCA. At this time, the second adhesive layer 303 may be an AF coating layer. The second adhesive layer 303 may be formed by coating an AF coating liquid on the first surface 150a of the second transparent plate 150. [ The first adhesive layer 301 may be formed by coating the second adhesive layer 303 with an OCA adhesive. Thereafter, the first transparent plate 110 and the second transparent plate 150 may be laminated together. After the first transparent plate 110 and the second transparent plate 150 are joined together, an autoclave process may be further performed.

The second transparent plate 150 may include a fifth layer 511 and a sixth layer 513. The fifth layer 511 may form the first surface 150a of the second transparent plate 150. [ The fifth layer 511 may be a hard coating layer. The fifth layer 511 may have a hardness of at least 4H of pencil hardness. Through the fifth layer 511, the surface strength and durability of the second transparent plate 150 can be improved. Further, through the fifth layer 511, the light transmittance of the second transparent plate 150 can be improved.

The sixth layer 513 may be disposed on the fifth layer 511. The sixth layer 513 may be disposed below the fifth layer 511 along the second direction D2. The sixth layer 513 may be an impact resistant sheet or an optical sheet containing a polymer organic material. For example, the sixth layer 513 may be a PC sheet. The impact strength of the second transparent plate 150 can be improved through the sixth layer 513.

The adhesive layer 130 may include a first adhesive layer 301, a third transparent plate 401, and a second adhesive layer 303, as shown in FIG. 5 (b). That is, the transparent protective layer 100 according to various embodiments may further include a third transparent plate 401 between the first adhesive layer 301 and the second adhesive layer 303. The laminating process of the first transparent plate 110, the adhesive layer 130, and the second transparent plate 150 can be easily performed through the third transparent plate 401. That is, the adhesive layer 130 is first prepared by forming the first adhesive layer 301 and the second adhesive layer 303 on the third transparent plate 401, and then the first transparent plate 110 or the second transparent plate 150 The transparent protective layer 100 can be manufactured through a laminating process with the transparent protective layer 100. Also, the third transparent plate 401 may allow the second adhesive layer 303 to be easily peeled off from the second transparent plate 150.

The third transparent plate 401 may be a transparent material having a high transmittance. The third transparent plate 401 may be a material capable of forming a thin film. The third transparent plate 401 may include an isotropic film. The isotropic film may include, for example, a COP (Cyclo Olefin Polymer) film, a CPP (Casting polypropylene) film. The isotropic film may be a film produced by a non-drawn or non-drawn process. That is, the third transparent plate 401 may include a non-drawn film or an unstretched film. A film produced by a non-drawn or non-drawn process may have a similar tensile strength in longitudinal and transverse directions. Alternatively, the tensile elongation in the longitudinal direction and the transverse direction may have values similar to each other. For example, the CPP film may have a tensile strength of 80 +/- 30 MPa in the longitudinal direction and 60 +/- 20 MPa in the transverse direction. In addition, the CPP film can have a tensile elongation of 650 ± 300% in the longitudinal direction and 850 ± 300% in the transverse direction. By including the isotropic film in the third transparent plate 401, retardation of light transmitted through the third transparent plate 401 can be reduced. For example, the light transmitted through the third transparent plate 401 may have a retardation of 10 nm or less. Therefore, the distortion of the light can be prevented through the adhesive layer 130 including the isotropic film.

However, the embodiment is not limited thereto, and the third transparent plate 401 may include an anisotropic film. The third transparent plate 401 may be, for example, a polyethylene terephthalate (PET) film or a polypropylene (PP) film. The anisotropic film may be a film produced by a stretching process. Referring to FIG. 4B, in one embodiment of the present invention, the third transparent plate 401 may include at least a first opening 401a. For example, the first opening 401a may be disposed at a position corresponding to the camera. Therefore, even if the third transparent plate 401 includes the anisotropic film, distortion of light transmitted through the adhesive layer 130 through the first opening 401a can be prevented, thereby ensuring the optical performance of the camera. However, according to various embodiments, a third transparent plate comprising an isotropic film may also include openings.

According to various embodiments, the second transparent plate 150 may comprise glass as a single layer. Alternatively, the second transparent plate 150 may comprise tempered glass. When the single layer includes glass, the light transmittance can be improved. In addition, since a high Young's modulus is secured and display deficiency due to a local impact is prevented, defective pixels such as bright spot, dark spot, and light leakage can be prevented.

6 is a perspective view of a transparent protective layer according to various embodiments. 7 is a cross-sectional view taken along line II-II 'of FIG.

6 and 7, in various embodiments, the adhesive layer 130 can be easily peeled off from the second transparent plate 150. [ That is, the adhesive layer 130 is strongly attached to the first transparent plate 110 through the first adhesive layer 301 having strong adhesive force, and is easily attached to the second transparent plate 150 through the second adhesive layer 303 having a weak adhesive force. . Therefore, when replacement of the first transparent plate 110 is required, the first transparent plate 110 can be cleanly separated. That is, when the first transparent plate 110 is separated, the material of the second adhesive layer 303 does not remain on the second transparent plate 150, so that it can be separated without being tacky. Accordingly, when the first transparent plate 110 is removed and replaced, foreign matter can be prevented from adhering to the second transparent plate 150.

For this separation and replacement, a transparent protective layer containing only the first transparent plate 110 and the adhesive layer 130 may be produced or implemented. When the existing first transparent plate 110 is damaged and needs to be replaced, the first adhesive layer 301 and the second adhesive layer 303 can be easily peeled off from the second transparent plate 150 while maintaining the adhesion. A transparent protective layer comprising a new first transparent plate and an adhesive layer for replacement can be attached to the existing second transparent plate 150 and reassembled. That is, the present invention can be implemented and produced through such separation and replacement. Production here is not limited to industrial production and may include all activities such as machining, assembly, and repair.

The transparent protective layer 100 according to various embodiments includes a first surface 110a facing the first direction D1 and a second surface facing the second direction D2 which is opposite to the first direction D1 A first transparent plate 110 comprising a first transparent substrate 110b; And an adhesive layer 130 disposed on a second surface 110b of the first transparent plate 101. The adhesive layer 13 includes a first adhesive layer 301 having a first adhesive force; And a second adhesive layer 303 having a second adhesive force lower than the first adhesive force.

In the transparent protective layer 100 according to various embodiments, the adhesive layer 130 may further include a third transparent plate 401 disposed between the first adhesive layer 301 and the second adhesive layer 303.

In the transparent protective layer 100 according to various embodiments, the third transparent plate 401 may be an isotropic film.

In the transparent protective layer 100 according to various embodiments, the third transparent plate 401 may include a casting polypropylene (CPP).

In the transparent protective layer 100 according to various embodiments, the third transparent plate 401 may include COP (Cyclo Olefin Polymer).

In the transparent protective layer 100 according to various embodiments, the third transparent plate 401 may include openings in at least a portion thereof.

In the transparent protective layer 100 according to various embodiments, the first adhesive force may be from 500 g / in to 2000 g / in, and the second adhesive force from 50 g / in to 300 g / in.

In the transparent protective layer 100 according to various embodiments, the first adhesive layer 301 may include any one or a combination of two or more selected from acrylic resin, optically clear adhesive (OCA), optically clear resin (OCR) .

In the transparent protective layer 100 according to various embodiments, the second adhesive layer 303 may include any one or a combination of two or more selected from silicone resin, pressure sensitive adhesive (PSA), and fluorine (F).

The transparent protective layer 100 according to various embodiments is disposed on the adhesive layer 130 along the second direction D2 and has a first surface 150a and a second surface D2 facing the first direction D1. And a second transparent plate 150 including a second surface 150b facing the first transparent plate 150. [

In the transparent protective layer 100 according to various embodiments, the first transparent plate 110 may have a first Young's modulus and the second transparent plate 150 may have a second Young's modulus higher than the first Young's modulus.

In the transparent protective layer 100 according to various embodiments, the first transparent plate 110 may have a first impact strength and the second transparent plate 150 may have a second impact strength that is higher than the first impact strength .

In the transparent protective layer 100 according to various embodiments, the first transparent plate 110 may have a first hardness and the second transparent plate 150 may have a second hardness that is less than the first hardness.

In the transparent protective layer 100 according to various embodiments, the first transparent plate 110 or the second transparent plate 150 may be formed of polycarbonate (PC), polymethyl methacrylate (PMMA) Polyimide (PE), polyethylene terephthalate (PET), polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate PEN), polyethylene terephthalate glycol (PETG), triacetyl cellulose (TAC), cyclic olefin polymer (COP), cyclic olefin copolymer (COC) , Polydicyclopentadiene (DCPD), cyclopentadiene anions (CPD), polyarylate May comprise any one or a combination of two or more selected from polyarylate (PAR), polyethersulfone (PES), polyether imide (PEI), glass, modified epoxy resin or acrylic resin have.

8 is a perspective view of an electronic device including a transparent protective layer according to various embodiments. 9 is an exploded perspective view of an electronic device according to various embodiments. 10 (a) is a cross-sectional view taken along line III-III 'of FIG. 10 (b) is a cross-sectional view of another embodiment taken along line III-III 'of FIG.

8 to 10, an electronic device including a transparent protective layer according to various embodiments will be described. As shown in FIG. 8, the electronic device 800 according to various embodiments may be a smartphone or a mobile phone. However, the embodiment is not so limited, and the electronic device according to various embodiments of the present disclosure may be, for example, a tablet personal computer, a videophone, an e-book reader, a desktop PC desktop personal computers, laptop personal computers, netbook computers, workstations, servers, personal digital assistants, portable multimedia players (PMPs), MP3 players, mobile medical devices, a camera or a wearable device such as smart glasses, head-mounted-device (HMD), electronic apparel, electronic bracelets, electronic necklaces, electronic apps, , A smart mirror, or a smart watch.

Alternatively, in various embodiments, the electronic device may be a smart home appliance. Smart home appliances include, for example, televisions, digital video disk players, audio, refrigerators, air conditioners, vacuum cleaners, ovens, microwaves, washing machines, air cleaners, set- (Such as a home automation control panel, a security control panel, a TV box such as Samsung HomeSync ™, Apple TV ™ or Google TV ™, a game console such as Xbox ™ and PlayStation ™, , A camcorder, or an electronic frame.

Alternatively, in various embodiments, the electronic device may be a variety of medical devices (e.g., various portable medical measurement devices such as blood glucose meters, heart rate meters, blood pressure meters, or temperature meters), magnetic resonance angiography (MRA) A global positioning system (GPS) receiver, an event data recorder (EDR), a flight data recorder (FDR), an automotive infotainment device , Automotive electronic equipment (eg marine navigation systems, gyro compass, etc.), avionics, security equipment, car head units, industrial or home robots, automatic teller's machines (ATMs) Point of sale, or internet of things such as a light bulb, various sensors, an electric or gas meter, a sprinkler device, a fire alarm, a thermostat, a streetlight, a toaster a toaster, a fitness equipment, a hot water tank, a heater, a boiler, etc.).

Alternatively, according to various embodiments, the electronic device may be a piece of furniture or a part of a building / structure, an electronic board, an electronic signature receiving device, a projector, For example, water, electricity, gas, or radio wave measuring instruments, etc.). In various embodiments, the electronic device may be a combination of one or more of the various devices described above. An electronic device according to some embodiments may be a flexible electronic device. Further, the electronic device according to the embodiment of the present disclosure is not limited to the above-described devices, and may include a new electronic device according to technological advancement.

8-10, an electronic device 800 includes a first transparent protective layer 100, a display 901, a decoration film 902, an internal support structure 903, A panel board assembly (PBA) 905, a camera 906, a housing 907, and a second transparent protective layer 909.

The first transparent protective layer 100 may be disposed on the outer surface of the electronic device 800. The first transparent protective layer 100 may protect the various structures disposed underneath. The first transparent protective layer 100 may prevent foreign matter from penetrating into or penetrating into the electronic device 800. The appearance quality of the electronic device 800 can be ensured through the first transparent protective layer 100. The first transparent protective layer 100 may transmit the internal light generated inside the electronic device 800 to the outside. In addition, the first transparent protective layer 100 can transmit external light reaching from outside the electronic device 800 to the inside of the electronic device 800. [

The first transparent protective layer 100 may correspond to the transparent protective layer described above. That is, the first transparent protective layer 100 may include a first transparent plate 110, an adhesive layer 130, and a second transparent plate 150. The first transparent plate 110, the adhesive layer 130, and the second transparent plate 150 may be sequentially disposed along the second direction D2.

The first transparent plate 110 may form an outer surface of the electronic device 800. The first transparent plate 110 may have a first hardness of pencil hardness of 3H or higher. Through the first transparent plate 110, the electronic device 800 can be improved in surface hardness and scratch resistance. The second transparent plate 150 may have a second impact strength higher than that of the first transparent plate 110. The second transparent plate 150 may have a second impact strength of 700 J / m or more. Through the second transparent plate 150, the electronic device 800 can prevent the internal structures disposed along the second direction D2 from being damaged. In particular, the second transparent plate 150 can prevent breakage of the display 901 due to a partial impact or drop impact.

The adhesive layer 130 may be disposed between the first transparent plate 110 and the second transparent plate 150. The adhesive layer 130 may include a first adhesive layer 301 and a second adhesive layer 303 having different adhesive strengths. The first adhesive layer 301 and the second adhesive layer 303 may be sequentially disposed along the second direction D2. The first adhesive layer 301 may have a higher adhesive force than the second adhesive layer 303. For example, the adhesive force of the first adhesive layer 301 may be 500 g / in to 2000 g / in. The adhesive force of the second adhesive layer 303 may be from 50 g / in to 300 g / in.

Therefore, when a force is applied to replace the first transparent plate 110, the first transparent plate 110, the first adhesive layer 301, and the second adhesive layer 303 are bonded to the second transparent plate 150). ≪ / RTI > That is, the adhesive layer 130 is strongly attached to the first transparent plate 110 through the first adhesive layer 301 having strong adhesive force, and is easily attached to the second transparent plate 150 through the second adhesive layer 303 having a weak adhesive force. . Particularly, when the first transparent plate 110 is damaged by dropping impact, breakage or scratch of the electronic device 800, the first transparent plate 110 can be easily replaced. As a result, the appearance quality of the electronic device 800 can be secured.

According to various embodiments, the adhesive layer 130 may include a first adhesive layer 301, a third transparent plate 401, and a second adhesive layer 303. That is, the transparent protective layer 100 according to various embodiments may further include a third transparent plate 401 between the first adhesive layer 301 and the second adhesive layer 303. The laminating process of the first transparent plate 110, the adhesive layer 130, and the second transparent plate 150 can be easily performed through the third transparent plate 401. That is, the adhesive layer 130 is first prepared by forming the first adhesive layer 301 and the second adhesive layer 303 on the third transparent plate 401, and then the first transparent plate 110 or the second transparent plate 150 The transparent protective layer 100 can be manufactured through a laminating process with the transparent protective layer 100. Also, the third transparent plate 401 may allow the second adhesive layer 303 to be easily peeled off from the second transparent plate 150.

The third transparent plate 401 may be a transparent material having a high transmittance. The third transparent plate 401 may be a material capable of forming a thin film. The third transparent plate 401 may include an isotropic film. The isotropic film may include, for example, a COP (Cyclo Olefin Polymer) film, a CPP (Casting polypropylene) film. The isotropic film may be a film produced by a non-drawn or non-drawn process. That is, the third transparent plate 401 may include a non-drawn film or an unstretched film. A film produced by a non-drawn or non-drawn process may have a similar tensile strength in longitudinal and transverse directions. Alternatively, the tensile elongation in the longitudinal direction and the transverse direction may have values similar to each other. For example, the CPP film may have a tensile strength of 80 +/- 30 MPa in the longitudinal direction and 60 +/- 20 MPa in the transverse direction. In addition, the CPP film can have a tensile elongation of 650 ± 300% in the longitudinal direction and 850 ± 300% in the transverse direction. By including the isotropic film in the third transparent plate 401, retardation of light transmitted through the third transparent plate 401 can be reduced. For example, the light transmitted through the third transparent plate 401 may have a retardation of 10 nm or less. Therefore, the distortion of the light can be prevented through the adhesive layer 130 including the isotropic film.

However, the embodiment is not limited thereto, and the third transparent plate 401 may include an anisotropic film. The third transparent plate 401 may be, for example, a polyethylene terephthalate (PET) film or a polypropylene (PP) film. The anisotropic film may be a film produced by a stretching process. Referring to FIG. 4B, in one embodiment of the present invention, the third transparent plate 401 may include at least a first opening 401a. For example, the first opening 401a may be disposed at a position corresponding to the camera. Therefore, even if the third transparent plate 401 includes the anisotropic film, distortion of light transmitted through the adhesive layer 130 through the first opening 401a can be prevented, thereby ensuring the optical performance of the camera. However, according to various embodiments, a third transparent plate comprising an isotropic film may also include openings.

According to various embodiments, the first transparent protective layer 100 disposed on the front surface of the display 901 may be a transparent window.

The display 901 may be secured to the inner support structure 903. The display 901 may be secured to the inner support structure 903 by an adhesive member (not shown). The display 901 is an internal configuration of the electronic device 800 and can perform substantial operations in the electronic device 800. [ The display 901 can perform a function of displaying an image.

The display 901 may include, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode (OLED) A microelectromechanical systems (MEMS) display, or an electronic paper display. Display 901 may display various content (e.g., text, images, video, icons, symbols, etc.) to the user, for example. The display 901 may include a touch screen and may receive a touch, gesture, proximity, or hovering input, for example, using an electronic pen or a portion of the user's body.

According to various embodiments, the display 901 may further include a touch panel (not shown) capable of sensing a touch generated on the surface. The touch panel can sense a touch using at least one of electrostatic, pressure sensitive, infrared, or ultrasonic methods, for example.

The decoloration film 902 may be disposed in an inactive region (e.g., a black matrix region) of the display 901 on the back surface of the transparent protective layer 100. [ The deco film 901 can be attached to the back surface of the transparent protective layer 100 through the adhesive layer. The adhesive layer may comprise OCA (optical clear adhesive). The deco film 902 can be manufactured through UV coating after engraving a pattern (e.g., a logo) on the PET film. According to various embodiments, the deco film 902 may further include a multi-deposited layer and a shielded printed layer.

The deco film 902 may have a color such as white, black, red, blue, and yellow. Therefore, the deco film 902 forms an outer appearance of the electronic device 800 to secure a sense of beauty.

The deco film 902 may include at least a portion of the second opening 902a. The second opening 902a may be formed at a position corresponding to the camera. The distortion of the light incident on the camera 906 can be prevented through the second opening 902a. That is, the optical performance of the camera 906 can be secured through the second opening 902a.

An internal support structure (e.g., bracket) 903 can support the internal configurations of the electronic device 800. [ The internal support structure 903 can enhance the overall stiffness of the electronic device 800. For example, the inner support structure 903 may include at least one of Al, Mg, and STS. According to various embodiments, the inner support structure 903 may comprise a high-stiffness plastic containing glass fibers. Or internal support structure 903 may comprise both metal and plastic. According to various embodiments, as the material of the inner support structure 903, when the metal member and the non-metal member are used together, the inner support structure 903 may be formed by inserting a non-metallic member into the metal member. The inner support structure 903 is positioned on the back surface of the display 901 and has a shape (curvature) similar to the back surface shape of the display 901 and can support the display module 330. According to various embodiments, a sheet such as a sponge, an elastic member such as a rubber, an adhesive layer such as a double-sided tape, or a sheet such as a cross-section tape is additionally disposed between the inner support structure 903 and the display 901 The display 901 can be protected.

The camera 906 may be, for example, a device capable of capturing still images and moving images, and in accordance with one embodiment, one or more image sensors (e.g., front or rear sensors), a lens, an image signal processor .

The decoloration film 902 and the third transparent plate 401 may be disposed in the first direction D1 of the camera 906. [ At this time, the deco film 902 may include a second opening 902a formed at a position corresponding to the camera 906. [ Referring to FIG. 10 (b), in another embodiment, the third transparent plate 401 may include a first opening 401a formed at a position corresponding to the camera 906. It is possible to prevent the distortion of the light incident on the camera 906 through the transparent protective layer 100 through the first opening 401a and the second opening 902a and to improve the optical performance of the camera 906 .

However, the embodiment is not limited thereto, and the electronic device may further include a sensor (not shown). Therefore, the decoupling film 902 and the third transparent plate 401 each include an opening at a position corresponding to the sensor, thereby securing the optical performance of the sensor.

The panel board assembly 905 may include a printed circuit board (PCB) and a connector. The panel board assembly 905 may be electrically connected to various configurations including the display 901 and the camera 906.

The housing 907 can fix the internal configuration of the electronic device 800. The housing 907 may be implemented in a form for protecting the internal structure of the electronic device 800. The housing 907 may include synthetic resins. Alternatively, the housing 907 may include a metal such as stainless steel or titanium (Ti).

The second transparent protective layer 909 may be disposed on the backside of the electronic device 800 to prevent internal configurations from being visible. Alternatively, the second transparent protective layer 909 may form the appearance of the electronic device 800. At this time, the second transparent protective layer 909 may have a structure corresponding to the transparent protective layer described above.

11 is a perspective view of an electronic device according to various embodiments. 12 is a cross-sectional view taken along line IV-IV 'in FIG.

11 and 12, the electronic device 1100 according to various embodiments may be a curved electronic device or a flexible electronic device. The first transparent protective layer 100 included in the electronic device 1100 may include a curved surface. Alternatively, the first transparent protective layer 100 may be flexible. The first transparent protective layer 100 may correspond to the transparent protective layer described above. The first transparent protective layer 100 included in the electronic device 1100 according to various embodiments may include a first transparent plate 110, an adhesive layer 130, and a second transparent plate 150. In various embodiments, the first transparent protective layer 100 can ensure bending or warping characteristics.

The display 901 included in the electronic device 1100 may include a curved display 901 or a flexible display 901. [ The display 901 may have a shape corresponding to the first transparent protective layer 100 (shape having a corresponding curvature). It is possible to prevent the pressing or shooting phenomenon even if the electronic device 1100 is provided with the curved surface display 901 or the flexible display 901 through the first transparent protective layer 100. [

13 is a perspective view of an electronic device according to various embodiments. 14 is a cross-sectional view taken along line V-V 'in Fig.

13 and 14, the electronic device 1300 according to various embodiments may include a first side 1310, a second side 1330, and a third side 1350. The first side 1310 may be the front side of the electronic device 1300. The second side 1330 and the third side 1350 can be one side of the electronic device 1300. The second side 1330 and the third side 1350 can be bent from the first side 1310. The second side 1330 and the third side 1350 may be bended from the first side 1310.

The first transparent protective layer 100 included in the electronic device 1300 may be provided to be bent at the second surface 1330 and the third surface 1350. [ That is, the first transparent protective layer 100 may be provided to bend on the second surface 1330 and the third surface 1350.

The display 901 included in the electronic device 1100 may be formed in a shape corresponding to the first transparent protective layer 100 (shape having a corresponding curvature). The display 901 may be provided on the first surface 1310 in a plane and may be provided to be bent on the second surface 1330 and the third surface 1350. That is, the display 901 may be provided to bend on the second surface 1330 and the third surface 1350.

According to various embodiments, the electronic device 800 includes a display 901; A first surface 110a that is disposed in at least one direction with respect to the display 901 and that faces the first direction D1 and a second surface D2 that faces the second direction D2 that is the opposite direction of the first direction D2. A first transparent plate 110 including a surface 110b; A first surface 150a disposed on the second surface 110b of the first transparent plate 110 and facing the first direction D1 and a second surface 150b directed toward the second direction D2, A second transparent plate 150; And an adhesive layer 130 disposed between the second surface 110b of the first transparent plate 110 and the first surface 150a of the second transparent plate 150, A first adhesive layer 301 having an adhesive force; And a second adhesive layer 303 having a second adhesive force lower than the first adhesive force.

In an electronic device 800 according to various embodiments, the adhesive layer 130 further includes a third transparent plate 401 disposed between the first adhesive layer 301 and the second adhesive layer 303, (401) is an isotropic film.

In an electronic device 800 according to various embodiments, the third transparent plate 401 may comprise a CPP (Casting Polypropylene).

In an electronic device 800 according to various embodiments, the third transparent plate 401 may include COP (Cyclo Olefin Polymer).

In an electronic device 800 according to various embodiments, the first adhesive force may be from 500 g / in to 2000 g / in and the second adhesive force from 50 g / in to 300 g / in.

In an electronic device 800 according to various embodiments, the first adhesive layer 301 may comprise any one or a combination of two or more selected from acrylic resin, optically clear adhesive (OCA), optically clear resin (OCR) have.

In an electronic device 800 according to various embodiments, the second adhesive layer 303 may comprise any one or combination of two or more selected from silicone resin, pressure sensitive adhesive (PSA), or fluorine (F).

In an electronic device 800 according to various embodiments, the first transparent plate 110 or the second transparent plate 150 may be formed of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide polyimide (PE), polyethylene terephthalate (PET), polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate (PEN) ), Polyethylene terephthalate glycol (PETG), triacetyl cellulose (TAC), cyclic olefin polymer (COP), cyclic olefin copolymer (COC) Polydicyclopentadiene (DCPD), cyclopentadiene anions (CPD), polyarylene and may include any one or a combination of two or more selected from polyarylate (PAR), polyethersulfone (PES), polyether imide (PEI), glass, modified epoxy resin or acrylic resin .

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. That is, it will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible.

Claims (22)

In the transparent protective layer,
A first transparent plate including a first surface facing the first direction and a second surface facing the second direction opposite to the first direction; And
And an adhesive layer disposed on the second surface of the first transparent plate,
The adhesive layer
A first adhesive layer having a first adhesive force; And a second adhesive layer having a second adhesive force lower than the first adhesive force.
The method according to claim 1,
Wherein the adhesive layer further comprises a third transparent plate disposed between the first adhesive layer and the second adhesive layer.
3. The method of claim 2,
Wherein the third transparent plate is an isotropic film.
3. The method of claim 2,
Wherein the third transparent plate comprises a transparent polypropylene (CPP).
3. The method of claim 2,
And the third transparent plate comprises a COP (Cyclo Olefin Polymer).
3. The method of claim 2,
And the third transparent plate includes an opening at least in part.
The method according to claim 1,
Wherein the first adhesive force is from 500 g / in to 2000 g / in, and the second adhesive force is from 50 g / in to 300 g / in.
The method according to claim 1,
Wherein the first adhesive layer comprises any one or a combination of two or more selected from acrylic resin, optically clear adhesive (OCA), optically clear resin (OCR) or urethane resin.
The method according to claim 1,
Wherein the second adhesive layer comprises a silicone resin, a pressure sensitive adhesive (PSA), or a combination of two or more selected from fluorine (F).
The method according to claim 1,
And a second transparent plate disposed on the adhesive layer in a second direction, the first transparent plate including a first surface facing the first direction and a second surface facing the second direction.
11. The method of claim 10,
Wherein the first transparent plate has a first Young's modulus and the second transparent plate has a second Young's modulus higher than the first Young's modulus.
11. The method of claim 10,
Wherein the first transparent plate has a first impact strength and the second transparent plate has a second impact strength higher than the first impact strength.
11. The method of claim 10,
Wherein the first transparent plate has a first hardness and the second transparent plate has a second hardness lower than the first hardness.
11. The method of claim 10,
The first transparent plate or the second transparent plate may be formed of a material selected from the group consisting of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PE), polyethylene terephthalate (PET) Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate (PEN), polyethylene terephthalate glycol (PETG), triacetyl (CO), cyclic olefin copolymer (COC), polydicyclopentadiene (DCPD), cyclopentadiene polymer (COP), and the like. cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulf a transparent protective layer comprising any one or a combination of two or more selected from the group consisting of polyether imide (PEI), glass, modified epoxy resin and acrylic resin.
In an electronic device,
display;
A first transparent plate disposed in at least one direction with respect to the display and including a first surface facing the first direction and a second surface facing the second direction opposite to the first direction;
A second transparent plate disposed on the second surface of the first transparent plate, the second transparent plate including a first surface facing the first direction and a second surface facing the second direction; And
And an adhesive layer disposed between the second surface of the first transparent plate and the first surface of the second transparent plate,
The adhesive layer
A first adhesive layer having a first adhesive force; And
And a second adhesive layer having a second adhesive force lower than the first adhesive force.
16. The method of claim 15,
Wherein the adhesive layer further comprises a third transparent plate disposed between the first adhesive layer and the second adhesive layer,
And the third transparent plate is an isotropic film.
17. The method of claim 16,
And the third transparent plate comprises CPP (Casting Polypropylene).
17. The method of claim 16,
And the third transparent plate comprises COP (Cyclo Olefin Polymer).
16. The method of claim 15,
Wherein the first adhesive force is from 500 g / in to 2000 g / in, and the second adhesive force is from 50 g / in to 300 g / in.
16. The method of claim 15,
Wherein the first adhesive layer comprises any one or a combination of two or more selected from acrylic resin, optically clear adhesive (OCA), optically clear resin (OCR) or urethane resin.
16. The method of claim 15,
Wherein the second adhesive layer comprises a silicone resin, a pressure sensitive adhesive (PSA), or a combination of two or more selected from fluorine (F).
16. The method of claim 15,
The first transparent plate or the second transparent plate may be formed of a material selected from the group consisting of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PE), polyethylene terephthalate (PET) Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate (PEN), polyethylene terephthalate glycol (PETG), triacetyl (CO), cyclic olefin copolymer (COC), polydicyclopentadiene (DCPD), cyclopentadiene polymer (COP), and the like. cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulf one or a combination of two or more selected from a polyether imide (PEI), a glass, a modified epoxy resin or an acrylic resin.

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