KR20150006910A

KR20150006910A - Transparent panel using case of mobile device

Info

Publication number: KR20150006910A
Application number: KR1020130080000A
Authority: KR
Inventors: 김양규; 노동수; 최시남
Original assignee: (주)미코씨엔씨
Priority date: 2013-07-09
Filing date: 2013-07-09
Publication date: 2015-01-20

Abstract

A holder for holding a rear surface of the mobile device for touching and operating the screen formed on the front thereof so as to expose the screen, and a holder connected to the side of the holder for covering the front surface of the mobile device by turning operation, In a case of a mobile device that includes a cover portion having an exposure hole that is partially exposed, the transparent panel that is transparently coupled so that the screen is visible in the exposure hole includes a first transparent substrate, a second transparent substrate, and an adhesive portion. The first transparent substrate contacts the front surface when the cover portion covers the front surface of the mobile device. The second transparent substrate is disposed on the first transparent substrate. The adhering portion is formed between the first and second transparent substrates, and has an adhesive layer for adhering the first and second transparent substrates and a function for improving image characteristics of the screen.

Description

TRANSPARENT PANEL USING CASE OF MOBILE DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent panel for a case of a mobile device, and more particularly to a transparent panel that is coupled to an exposure hole for exposing all or a part of the screen of a cover portion covering a screen of a mobile device.

In general, a mobile device refers to a portable information processing device such as a smart phone, a smart pad, a PMP, or a tablet PC. Unlike the conventional simple document creation and schedule management, recently, With the development of wireless communication technology, there is a tendency that usage is increasingly used in various applications such as Internet search, game, real-time video and music appreciation without any place. In particular, recently, a mobile device operates by directly touching a screen formed on a front surface, so that a user can easily input infinite information according to various forms of the screen.

Such a mobile device may be damaged due to frequent drops or bumps due to its portability. Therefore, it is possible to prevent the above-mentioned breakage by covering the case with an outer case, and to express variously according to the personality of the user in terms of design.

The case may include a jelly type in which the front surface of the mobile device is exposed and the side and rear surfaces of the mobile device are enclosed in an impact absorbing manner, and a flip ).

At this time, the flip-shaped case is coupled with a transparent panel that exposes the information on the screen to the cover part covering the front surface so that the contents of the screen can be confirmed even when the user covers the front surface of the mobile device. In the flip-shaped case in which such a transparent panel is combined, there is known a prior art in which a transparent window is formed on an upper cover that covers the mobile phone so that the screen of the mobile device can be seen.

In addition, since the transparent panel is very thin with a thickness of about 1 mm and is difficult to be bonded to the case, a structure in which two transparent substrates are adhered to each other so as to form a step for coupling with the case Have. At this time, the two transparent substrates are bonded to each other through an optical clean adhesive (OCA) in order to maintain transparency so that the image of the screen can be seen clearly.

However, the two transparent substrates may be separated from each other during use of the case because the optical adhesive generally has a relatively low adhesion force in order to maintain transparency thereof.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a transparent panel used in a case of a mobile device in which two first and second transparent substrates can stably adhere to each other while improving the image characteristics of a screen of a mobile device.

In order to accomplish the object of the present invention, there is provided a mobile device for touching and operating a screen formed on a front surface of a mobile device, comprising: a holder for holding a rear surface of the mobile device to expose the screen; And a cover portion having an exposure hole connected to a side portion of the cover and opened to expose all or a part of the screen when the cover is covered, The transparent panel includes a first transparent substrate, a second transparent substrate, and an adhesive.

The first transparent substrate contacts the front surface when the cover portion covers the front surface of the mobile device. And the second transparent substrate is disposed on the first transparent substrate. The adhesion portion is formed between the first and second transparent substrates, and has an adhesive layer for bonding the first and second transparent substrates and a functional portion for improving image characteristics of the screen.

The adhesive layer according to one embodiment may be adhered via a polymethyl methacrylate (PMMA) adhesive or a hot melt adhesive.

According to an exemplary embodiment, the cover portion includes first and second cover layers superimposed on each other, and the first cover layer is opened to the side of the first and second transparent substrates more widely than the second cover layer A stepped step can be formed. The functional unit may include a shielding layer formed on the stepped portion to block transmission of light emitted from the screen or light incident from the outside to the screen.

The functional unit according to another embodiment may include an anti-glare unit for guiding irregular reflection of light emitted from the screen.

According to another embodiment of the present invention, the functional unit may include an information protection layer having a louver for confining a viewing angle of light emitted from the screen to the front.

The second transparent substrate may be a glass substrate, and the first transparent substrate may be a resin substrate to prevent glass fragments of the glass substrate from scattering.

The first and second transparent substrates according to one embodiment may be comprised of first and second glass substrates, wherein the first and second glass substrates are in contact with each other to prevent their glass fragments from scattering The protective film can be adhered.

The cover portion according to an embodiment includes first and second cover layers superimposed on each other and a second cover layer formed on the inner side of the first and second cover layers in the exposure hole in contact with the sides of the first and second transparent substrates And a reinforcing plate for reinforcing the strength. The side portions of the first and second transparent substrates may be adhered to each other through the hot melt adhesive as a whole with the reinforcing plate, the first and second cover layers.

In order to accomplish the object of the present invention, there is provided a mobile device for touching and operating a screen formed on a front surface of a mobile device, comprising: a holder for holding a rear surface of the mobile device to expose the screen; And a cover portion having an exposure hole connected to the side portion of the cover and opened to expose all or a part of the screen when covering the front surface, The transparent panel includes a first transparent substrate, a second transparent substrate, a bonding portion and a functional portion.

The first transparent substrate contacts the front surface when the cover portion covers the front surface of the mobile device. And the second transparent substrate is disposed on the first transparent substrate. The bonding portion adheres them in a central region between the first and second transparent substrates. The functional part adheres them at an edge area between the first and second transparent substrates with a stronger adhesive force than the adhesive part.

The functional unit according to one embodiment may be bonded through a polymethyl methacrylate (PMMA) adhesive or a hot melt adhesive.

The functional unit according to another embodiment may include a shielding layer for blocking transmission of light emitted from the screen or light incident from the outside to the screen.

The adhesive portion according to one embodiment may be adhered via an optical clean adhesive (OCA).

As one of the first and second cover layers is opened to the side of the first and second transparent substrates according to an embodiment, the first and second cover layers A stepped step may be formed in a direction parallel to the functional part. Thus, the functional portion can be adhered in the edge region covered by the step portion.

According to the case transparent panel of the mobile device, the first and second transparent substrates are adhered to each other through a PMMA (polymethyl methacrylate) adhesive or a hot melt adhesive having stronger adhesive force than optical clean adhesive (OCA) The first and second transparent substrates can be prevented from being separated from each other due to the strong adhesive force even when the case is used for a long period of time by manufacturing a transparent panel that is coupled to the exposure hole of the case so that the screen of the mobile device can be seen. have. Thus, it is possible to prevent costly damage that the user has to purchase the case of the mobile device again due to the separation of the first and second transparent substrates.

1 is a perspective view schematically showing a state in which a case for a mobile device according to an embodiment of the present invention is opened.
FIG. 2 is a view illustrating a cover of the case shown in FIG. 1 covering a front surface of the mobile device.
FIG. 3 is a view illustrating a transparent panel according to an embodiment of the present invention, which is cut along the line I-I 'of FIG.
4 is an enlarged view of a portion A in Fig.
Figs. 5A and 5B are enlarged views of part B of Fig. 4 to show the functional parts according to other embodiments of the transparent panel in detail.
6 is a view showing a transparent panel according to another embodiment by enlarging part A of FIG.
7 is a perspective view schematically showing a state in which a case for a mobile device according to another embodiment of the present invention is opened.
8 is a view showing a state in which the cover portion of the case shown in FIG. 7 covers the front surface of the mobile device.
FIG. 9 is a view illustrating a transparent panel according to an embodiment cut along the line II-II 'of FIG. 8 and coupled to the cover portion.
10 is an enlarged view of a portion C in Fig.
Figs. 11A to 11C are enlarged views of part D of Fig. 10 to show the functional parts according to various embodiments of the transparent panel in detail.
12 is a view showing a transparent panel according to another embodiment by enlarging part C of FIG.
FIG. 13 is a view illustrating a transparent panel according to another embodiment, which is cut along the line II-II 'of FIG. 8 and coupled to the cover portion.

Hereinafter, a transparent panel for a case of a mobile device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a perspective view schematically showing a state in which a case for a mobile device according to an embodiment of the present invention is opened, FIG. 2 is a view showing a state in which a cover portion of the case shown in FIG. And FIG. 3 is a view illustrating a transparent panel according to an embodiment of the present invention, which is cut along the line I-I 'of FIG. 2 and coupled to the cover portion. FIG. 4 is an enlarged view of a portion A of FIG.

Referring to FIGS. 1 to 4, the case 1000 of the present invention includes a holder 100, a cover 200, and a transparent panel 300 according to an embodiment.

The holder unit 100 holds the rear surface 30 of the mobile device 10 having the screen 22 formed on the front surface 20 thereof. Specifically, the holder 100 can hold and hold a part of the side surface 40 of the mobile device 10 through the elasticity so that the screen 22 is exposed. At this time, the holder unit 100 may be made of a shock-absorbing material capable of absorbing a part of the shock to protect the mobile device 10 from an impact applied to the rear surface 30 from the outside. Here, the mobile device 10 refers to a portable information processing device such as a smart phone, a smart pad, a PMP, or a tablet PC. In the embodiments of the present invention, a smart phone will be described as an example. In this mobile device 10, information is inputted by a method in which the user directly touches the screen 22 instead of inputting information through a separate key button, so that infinite information is input according to various forms of the screen 22 And can be used for various purposes.

The cover portion 200 is connected to the side portion of the holder portion 100 to cover the front surface 20 of the mobile device 10. The cover part 200 is made of a soft material which is relatively easy to deform in shape, and has a structure capable of moving with reference to the side of the holder part 100. The cover unit 200 can cover the front surface 20 of the mobile device 10 or can be separated from the front surface 20 by the flipping operation. Here, the cover part 200 may be made of a leather material, for example.

The cover part 200 has an exposure hole 210 opened to expose the screen 22 when the front surface 20 of the mobile device 10 is covered. At this time, the exposure hole 210 may be formed so that the screen 22 is entirely exposed, or only a specific area such as a current time, a call or a message display frequently used by the user is exposed. The reason why only the specific region is formed in the exposure hole 210 is that the cover 200 of the leather material is inserted into the screen 210 of the mobile device 10 rather than the transparent panel 300, 22 can be more safely protected from external impacts.

The transparent panel 300 is coupled to the exposure hole 210 of the cover part 200 so that the screen 22 can be seen. The transparent panel 300 may have the same thickness as the cover portion 200 so that the upper and lower surfaces thereof are located on the same plane as the surface of the cover portion 200. In this case, when the cover unit 200 covers the front surface 20 of the mobile device 10, the transparent panel 300 is entirely in surface contact with the screen 22, The mobile device 10 can be operated. That is, even if the user touches the transparent panel 300, since the constant voltage can be directly transmitted to the surface-contacted screen 22, as a result, the user can perform the operation of turning the mobile device 10 to operate It is not necessary to separate the cover part 200 from the front surface 20 through the cover 20, so that the case 1000 of the present invention can be utilized very conveniently.

The transparent panel 300 includes a first transparent substrate 310, a second transparent substrate 320, and a bonding portion 330. The first transparent substrate 310 is in surface contact with the front surface 20 when the cover portion 200 covers the front surface 20 of the mobile device 10. The second transparent substrate 320 is disposed on the first transparent substrate 310. The second transparent substrate 320 is exposed to the outside when the cover unit 200 covers the front surface 20 of the mobile device 10 and is directly touched by the user. It can be made of a glass substrate so that scratches are not easily generated.

The bonding portion 330 bonds the first and second transparent substrates 310 and 320 between them. Accordingly, the bonding portion 330 includes an adhesive layer 340 and a functional portion 350 that substantially adhere the first and second transparent substrates 310 and 320.

The adhesive layer 340 may bond the first and second transparent substrates 310 and 320 to each other through a PMMA (polymethyl methacrylate) adhesive or a hot melt adhesive having stronger adhesive strength than an optical clean adhesive (OCA) . Here, the PMMA adhesive has a certain degree of light transmittance, and transparency of the first and second transparent substrates 310 and 320 can be maintained. In addition, since the hot-melt adhesive is a sheet having no initial adhesive force, when it receives heat, the hot-melt adhesive has a property of having a strong adhesive force while being melted. Therefore, the light- The substrates 310 and 320 can be bonded with a stronger adhesive force. When the size of the mobile device 10 is small or medium, the transparency can be further guided through the relatively high light transmittance by using the PMMA adhesive, and in the case of a large size, the hot melt adhesive is used It is possible to more stably prevent the first and second transparent substrates 310 and 320 from being separated from each other rather than the transparency thereof with a stronger adhesive force. The application of such a PMMA adhesive and a hot melt adhesive is merely one example in terms of using the characteristics more efficiently and it is necessary for the user to determine which adhesive to use as the adhesive layer 340 regardless of the size of the mobile device 10 Can be freely selected.

The functional unit 350 enhances the image characteristics of the screen 22 of the mobile device 10 between the first and second transparent substrates 310 and 320. The functional unit 350 may include a shielding layer 352 formed on the outer sides of the first and second transparent substrates 310 and 320. Specifically, the cover part 200 includes first and second cover layers 220 and 230 of soft material superimposed on each other, and a first cover 220 is provided on the side of the first and second transparent substrates 310 and 320, The shielding layer 352 may be formed of a black matrix BM on the stepped portion 315 when the stepped portion 315 is formed as the layer 220 is wider than the second cover layer 230. [ Or the like. Such a shielding layer 352 can be formed very thinly by a silk screen method or a digital printing method, and by using a digital printing method, the shielding layer 352 can be made thinner.

The shield layer 352 can block the transmission of the light emitted from the screen 22 or the light incident on the screen 22 from the outside at the step 315. The first and second transparent substrates 310, 320, the outer border of the screen 22 is clearly separated by the shielding layer 352, so that a neat and clear effect can be expected.

Hereinafter, other embodiments of the functional unit 350 will be described in more detail with reference to FIGS. 5A and 5B.

Figs. 5A and 5B are enlarged views of part B of Fig. 4 to show the functional parts according to other embodiments of the transparent panel in detail.

Referring to FIGS. 3, 4, and 5A, the functional unit 360 according to another embodiment includes first and second transparent substrates 310 and 320, which are adhered to each other, And anti-glare units 362 and 364.

In this case, since the areas where the first and second transparent substrates 310 and 320 are adhered by the first and second concave-convex parts 362 and 364 are wider, the adhesive strength can be expected to be improved accordingly. Accordingly, through the functional part 360 of the present embodiment, the first and second transparent substrates 310 and 320 having a relatively large size can be stably bonded through the improved adhesive force. Although the first and second concave and convex portions 362 and 364 are formed on the first and second transparent substrates 310 and 320 in the present embodiment, You can expect.

3, 4, and 5B, the functional unit 370 according to another exemplary embodiment includes an information protection layer 370 having a louver 374 for limiting the viewing angle of light emitted from the screen 22 to the front, Lt; RTI ID = 0.0 > 372 < / RTI > At this time, the louver 374 forms a guide vertically to guide the light emitted from the screen 22 to the front.

In this case, when the user covers the front surface 20 of the mobile device 10 with the cover part 200, the user can view the image of the screen 22 only by the information protection layer 672, The user can more comfortably utilize the mobile device 10 personally.

When the functional part 370 includes the information protection layer 372, the adhesive layer 340 bonds the first and second transparent substrates 310 and 320 to the lower and upper portions of the information protection layer 372 The first and second adhesive layers 342 and 344 may be used.

As described above, the first and second transparent substrates 310 and 320 are adhered to each other through a PMMA (polymethyl methacrylate) adhesive or a hot melt adhesive having stronger adhesive force than an optical clean adhesive (OCA) Even if the case 1000 is used for a long time, the transparent panel 300 coupled to the exposure hole 210 of the case 1000 is manufactured so that the screen 22 of the apparatus 10 can be seen, It is possible to prevent the first and second transparent substrates 310 and 320 from being separated from each other. Accordingly, it is possible to prevent costly damage that the user has to purchase the case 1000 of the mobile device 10 again due to the separation of the first and second transparent substrates 310 and 320.

3 and 4, it is difficult to maintain the strength of the cover part 200 with the first and second cover layers 220 and 230 made of soft material around the transparent panel 300, A reinforcing plate (not shown) is formed on the inner side of the first and second cover layers 220 and 230 in the exposure hole 210 so as to reinforce the strength of the first and second transparent substrates 310 and 320 240). At this time, the reinforcing plate 240 may be made of polycarbonate (PC) having a sufficient strength while being easy to process. The sides of the first and second transparent substrates 310 and 320 are entirely bonded with the reinforcing plate 240 and the first and second cover layers 220 and 230 through the hot melt adhesive They can be adhered to each other.

4, the reinforcing plate 240 disposed between the first and second cover layers 220 and 230 and the first transparent substrate 310 are bonded to each other in the stepped portion 315, The adhesion between the first and second transparent substrates 310 and 320 can be further improved.

Meanwhile, the first transparent substrate 310 bonded to the second transparent substrate 320 formed of a glass substrate may be formed of a resin substrate. This prevents the second transparent substrate 320 from being scattered by the first transparent substrate 310 to the plurality of glass fragments when the second transparent substrate 320 is broken due to an external impact, Thereby preventing injury to the user or other persons around him or her.

6 is a view showing a transparent panel according to another embodiment by enlarging part A of FIG.

Referring to FIG. 6, the first transparent substrate 410 of the transparent panel 400 according to another embodiment may be formed of the same glass substrate as the second transparent substrate 420.

Accordingly, the user can operate the glass substrate while viewing the screen (22 in Fig. 3) of the mobile device (10 in Fig. 3) more clearly in view of the characteristics of the glass substrate. At this time, the transparent panel 400 may prevent the scattering of the glass fragments between the first and second transparent substrates 410 and 420 and prevent the scattering prevention film 415 from adhering to the first and second transparent substrates 410 and 420 have. The scattering prevention film 415 may be bonded to the first transparent substrate 410 through the first bonding portion 430 and may be bonded to the second transparent substrate 420 through the second bonding portion 450.

FIG. 7 is a perspective view schematically showing a state in which a case for a mobile device according to another embodiment of the present invention is opened, FIG. 8 is a view showing a state in which a cover portion of the case shown in FIG. And FIG. 9 is a view illustrating a transparent panel according to an embodiment, which is cut along the line II-II 'of FIG. 8 and coupled to the cover portion. FIG. 10 is an enlarged view of portion C of FIG.

7-10, the case 1100 of the present invention includes a holder portion 1100, a cover portion 1200, and a transparent panel 1300 according to another embodiment.

In this embodiment, the holder portion 1100 and the cover portion 1200 are the same as the holder portion (100 in Fig. 1) and the cover portion (200 in Fig. 1) shown in Figs. 1 to 4, Is omitted. The transparent panel 1300 of the present embodiment will also be partially omitted from the transparent panel (300 of FIG. 1) shown in FIGS. 1 to 4. FIG.

The transparent panel 1300 includes a first transparent substrate 1310, a second transparent substrate 1320, a bonding portion 1330, and a functional portion 1340. The first transparent substrate 1310 is in surface contact with the front surface 20 when the cover portion 1200 covers the front surface 20 of the mobile device 10. [ The second transparent substrate 1320 is disposed on the first transparent substrate 1310. The second transparent substrate 1320 is a portion of the second transparent substrate 1320 that is exposed to the outside when the cover unit 1200 covers the front surface 20 of the mobile device 10 and is directly touched by the user. It can be made of a glass substrate so that scratches are not easily generated.

Adhesive portions 1330 adhere them in the most central region CA between the first and second transparent substrates 1310 and 1320. The adhesive portion 1330 can bond the first and second transparent substrates 1310 and 1320 through an optical adhesive (OCA) including a transparent material having a high dielectric constant. In this case, when the user touches the second transparent substrate 1320 while the screen 22 of the mobile device 10 is clearly visible by the optical adhesive, a constant voltage is applied to the screen 22 So that the touch sensitivity can be improved.

The function portion 1340 bonds the first and second transparent substrates 1310 and 1320 in the remaining edge region EA between the first and second transparent substrates 1310 and 1320. The functional unit 1340 may have a somewhat lower transparency to prevent the first and second transparent substrates 1310 and 1320 from being separated from each other due to a somewhat weakened adhesive force in order to maintain transparency which is an important function of the adhering unit 1330, The first and second transparent substrates 1310 and 1320 are bonded to each other with a stronger adhesive force than the first and second transparent substrates 1310 and 1320. At this time, although the edge area EA to be adhered by the functional unit 1340 may vary according to the size of the mobile device 10, it is possible to minimize the area covered by the screen 22, It is preferable to have a width of about several millimeters in order to maintain the adhesion of the bonding wires 1310 and 1320 as they are.

The functional part 1340 may be bonded to the optical functional part 1340 through a polymethyl methacrylate (PMMA) adhesive or a hot melt adhesive having stronger adhesive force than the optical adhesive. Here, the PMMA adhesive is not completely transparent, but shows a certain degree of light transmittance, so that the functional portion 1340 can be apparently not recognized by the user. In addition, since the hot-melt adhesive is a sheet having no initial adhesive force, when it receives heat, it has a characteristic of having a very strong adhesive force while being melted, so that its light transmittance is somewhat lower than that of the above- The substrates 1310 and 1320 can be bonded with stronger adhesive force. When the size of the mobile device 10 is small or medium, the PMMA adhesive may be used to obscure the distinction between the adhesive portion 1330 and the adhesive portion 1330. In the case of a large size, the hot melt adhesive may be used It is possible to more stably prevent the first and second transparent substrates 1310 and 1320 from being separated from each other with strong adhesive force. The application of the PMMA adhesive and the hot-melt adhesive is one example in terms of using the characteristics more efficiently. Regardless of the size of the mobile device 10, It can be freely selected by the user.

Hereinafter, various specific embodiments of the function unit 1340 will be described in detail with reference to FIGS. 11A to 11C.

Figs. 11A to 11C are enlarged views of part D of Fig. 10 to show the functional parts according to various embodiments of the transparent panel in detail.

Referring to FIGS. 9, 10 and 11A, the functional unit 1340 according to an exemplary embodiment includes first and second transparent substrates 310 and 320 on the surfaces thereof bonded to the first and second transparent substrates 310 and 320, respectively, And second anti-glare portions 1341 and 1342 are formed. The light emitted from the screen 22 of the mobile device 10 or the light incident from the outside is irregularly reflected by the first and second concave and convex portions 1341 and 1342 and is adhered to the functional portion 1340 and the adhesive portion 1330, Can be made ambiguous. At this time, when the function unit 1340 uses a PMMA adhesive having a predetermined light transmittance, the ambiguity effect can be further improved. Further, since the first and second transparent substrates 1310 and 1320 are bonded to each other through the functional part 1340 by the first and second concave and convex parts 1341 and 1342, You can expect. Accordingly, the width of the edge area EA may be further narrowed through the function of the functional part 1340 of the present embodiment through the improved adhesive force, or the first and second transparent substrates 1310 and 1320 It is also possible to apply it. Although the first and second concave-convex portions 1341 and 1342 are formed on the first and second transparent substrates 1310 and 1320, respectively, the present embodiment is not limited thereto. You can expect.

9, 10, and 11B, the functional unit 1340 according to another embodiment includes a shielding layer 1343 formed in a black matrix form in which light is not transmitted and reflected.

The functional portion 1340 is formed with first and second adhesive layers 1344 and 1345 for strong adhesion to the first and second transparent substrates 1310 and 1320 on the lower and upper portions of the shielding layer 1343 do. In this case, the bezel shape is implemented by the function unit 1340 with the shielding layer 1343, so that the function unit 1340 can provide a rather neat image in terms of design to the user. The black matrix type shielding layer 1343 can be formed very thinly by the silk screen method or the digital printing method, and by using the digital printing method, the shielding layer 1343 can be made thinner.

9A, 10B, and 11C, the functional unit 1340 according to another embodiment is a combination of the embodiments of FIGS. 11A and 11B, in which the first and second adhesive layers 1344 and 1345, The first and second concave and convex portions 1341 and 1342 are formed on the surfaces of the first and second transparent substrates 1310 and 1320 facing each other with the shielding layer 1343 formed therebetween. .

In this case, as in the embodiment of FIG. 5A, by using the irregular reflection characteristics of the first and second concave-convex parts 1341 and 1342, the distinction between the functional part 1340 and the adhesive part 1330 becomes blurred, It is possible to expect an improvement in the adhesion of the first and second transparent substrates 1310 and 1320 due to the widening and to realize a bezel shape by the shielding layer 1343 as in the embodiment of FIG. It is possible to provide a clean image in appearance.

As described above, the first and second transparent substrates 1310 and 1320 are adhered with the adhesive portion 1330 so that transparency can be maintained in most of the center regions thereof, and in the remaining edge regions, The function unit 1340 can be attached to the case 1300 even when the case 1100 is used for a long period of time by manufacturing the transparent panel 1300 bonded to the exposure hole 1210 of the case 1100 by bonding the functional unit 1340 with the adhesive force- It is possible to prevent the first and second transparent substrates 1310 and 1320 from being separated from each other due to the strong adhesive force between the first and second transparent substrates 1310 and 1320.

Referring again to FIGS. 9 and 10, the cover portion 1200 of the case 1100 includes first and second cover layers 1220 and 1230 of soft material superimposed on each other.

At this time, the first cover layer 1220 has a structure that is wider than the second cover layer 1230 in the exposure hole 1210 of the cover portion 1200. That is, the first and second cover layers 1220 and 1230 have a step on the inner side of the exposure hole 1210. The first and second transparent substrates 1310 and 1320 are aligned in the lower and upper portions of the transparent panel 1300 with respect to the step of the first and second cover layers 1220 and 1230, And the function unit 1340. [0154] As shown in FIG.

The cover part 1200 is difficult to maintain the strength of the first and second cover layers 1220 and 1230 made of soft material around the transparent panel 1300. Therefore, The first and second cover layers 1220 and 1230 may further include a reinforcing plate 1240 on the inner side of the first and second cover layers 1220 and 1230 to strengthen the strength of the first and second transparent substrates 1310 and 1320 while contacting the sides of the first and second transparent substrates 1310 and 1320. At this time, the reinforcing plate 1240 may be made of polycarbonate (PC) having a sufficient strength while being easy to process.

The sides of the first and second transparent substrates 1310 and 1320 are entirely adhered to the reinforcing plate 1240 and the first and second cover layers 1220 and 1230 through hot melt adhesive They can be adhered to each other. In this case, when the functional part 1340 uses a hot-melt adhesive, the edge areas EA between the side parts of the first and second transparent substrates 1310 and 1320 and the first and second transparent substrates 1310 and 1320, Can be bonded at a time through the hot-melt adhesive, so that the process can be simplified and the work flow and cost can be reduced accordingly.

In addition, since the first and second cover layers 1220 and 1230 have a step on the inner side of the exposure hole 1210, the side portions of the first and second transparent substrates 1310 and 1320 are provided with functional portions 1340 are formed so as to be adhered to each other. At this time, the stepped portion 1315 is formed by bonding the reinforcing plate 1240 and the first transparent substrate 1310, which are disposed substantially between the first and second cover layers 1220 and 1230, The adhesion between the first and second transparent substrates 1310 and 1320 can be further improved.

Meanwhile, the first transparent substrate 1310 bonded to the second transparent substrate 1320 made of a glass substrate may be a resin substrate. This prevents the second transparent substrate 1320 from being scattered by the first transparent substrate 1310 to a plurality of glass fragments when the second transparent substrate 1320 is broken by an external impact, Thereby preventing injury to the user or other persons around him or her.

12 is a view showing a transparent panel according to another embodiment by enlarging part C of FIG.

Referring to FIG. 12, the first transparent substrate 1410 of the transparent panel 1400 according to another embodiment may be formed of the same glass substrate as the second transparent substrate 1420.

Thus, the user can operate the glass substrate while viewing the screen (22 in Fig. 9) of the mobile device (10 in Fig. 9) more clearly in view of the characteristics of the glass substrate. At this time, the transparent panel 1400 can prevent the scattering of the glass fragments between the first and second transparent substrates 1410 and 1420 and prevent the scattering of the glass fragments, have. The scattering prevention film 1415 is bonded to the first transparent substrate 1410 through the first bonding portion 1430 and the first functional portion 1440 and is bonded to the second bonding portion 1450 ) And the second function unit 1460. [

FIG. 13 is a view illustrating a transparent panel according to another embodiment, which is cut along the line II-II 'of FIG. 8 and coupled to the cover portion.

In this embodiment, the transparent panel of the mobile case is the same as the structures of Figs. 9 and 10 except for the positions where the stepped portions are formed, and therefore, the same reference numerals are used for the same structures, .

Referring to FIG. 13, the second transparent substrate 1520 of the transparent panel 1500 according to another embodiment of the present invention has a stepped portion 1522 which is stepped with the reinforcing plate 1240 at a side portion thereof.

The first transparent substrate 1510 disposed under the second transparent substrate 1520 is bonded to the second transparent substrate 1520 through the adhesive portion 1530 in most of the central regions CA, In the region EA, it is bonded through the functional portion 1540.

At this time, the edge region EA bonded by the functional portion 1540 is locally included in the step portion 1522 formed on the second transparent substrate 1520, so that the functional portion 1540 is separated from the step portion 1522, As shown in FIG.

In this case, as in the embodiments of Figs. 10 and 11A to 11C, the function portion 1540 is provided with the first and second concavities and convexities (1341 and 1342 in Fig. 5A) or the shield layer for the apparently neat image (1343 in FIG. 5B), it is possible to simplify the structure of the functional unit 540 without any special function. In addition, since the step portion 1522 is already formed in the second transparent substrate 1520, the assembling property with the first transparent substrate 1510 can be improved.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

As described above, the first and second transparent substrates are adhered to each other through PMMA (polymethyl methacrylate) adhesive or hot melt adhesive having stronger adhesive force than optical clean adhesive (OCA) It is possible to prevent the first and second transparent substrates from being separated from each other due to the strong adhesive force even if the case is used for a long time.

10: mobile device 20: front
22: Screen 30: Rear
40: side face 100, 1100: holder part
200, 1200: cover part 210, 1210: exposure hole
220, 1220: first cover layer 230, 1230: second cover layer
240, 1240: reinforcing plate
300, 400, 500, 1300, 1400, 1500: Transparent panel
310, 410, 510, 1310, 1410, 1510:
315, 1315, 1522:
320, 420, 520, 1320, 1420, 1520:
330, 1330, 1530: Adhesive part 340: Adhesive layer
342, 1344: first adhesive layer 344, 1345: second adhesive layer
350, 360, 370, 1340, 1540:
352, 1343: shielding layer 362, 1341: first concave-
362, 1342: second concave-convex portion 372: information protection layer
374: Lubbers 415 and 1415: Shatterproof film
430, 1430: first bonding portion 450, 1450: second bonding portion
1440: first function unit 1460: second function unit
1000, 1100: Case

Claims

A holder for holding a rear surface of the mobile device for touching and operating the screen formed on the front thereof so as to expose the screen, and a holder connected to a side of the holder to cover the front surface of the mobile device by turning operation, And a cover portion having an exposure hole that is opened to expose all or a part of the screen, wherein the transparent panel is transparently coupled to the exposure hole so that the screen is visible,
A first transparent substrate in contact with the front surface of the mobile device when the cover part covers the front surface of the mobile device;
A second transparent substrate disposed on the first transparent substrate; And
And an adhesive portion formed between the first and second transparent substrates and having an adhesive layer for adhering the first and second transparent substrates and a functional portion for improving image characteristics of the screen, Transparent panel for case.

The transparent panel for a case of a mobile device according to claim 1, wherein the adhesive layer is adhered through a PMMA (polymethyl methacrylate) adhesive or a hot melt adhesive.

2. The display device according to claim 1, wherein the cover portion includes first and second cover layers superimposed on each other, and the first cover layer is opened to the side of the first and second transparent substrates more widely than the second cover layer A stepped step is formed along the stepped portion,
Wherein the functional unit includes a shielding layer formed on the stepped portion and blocking the light emitted from the screen or the light incident on the screen from the outside at the stepped portion.

The transparent panel for a case of a mobile device according to claim 1, wherein the function unit includes an anti-glare unit for guiding irregular reflection of light emitted from the screen.

The transparent panel for a case of a mobile device according to claim 1, wherein the function unit comprises an information protection layer having a louver for limiting a viewing angle of light emitted from the screen to the front.

The display device according to claim 1, wherein the second transparent substrate comprises a glass substrate,
Wherein the first transparent substrate is made of a resin substrate that prevents glass fragments of the glass substrate from scattering.

The method of claim 1, wherein the first and second transparent substrates comprise first and second glass substrates,
Wherein a scattering prevention film is adhered between the first and second glass substrates to prevent their glass fragments from being scattered.

The apparatus of claim 1, wherein the cover portion
First and second cover layers overlapping each other; And
And a reinforcing plate which reinforces the inner side portions of the first and second cover layers in the exposure hole while contacting the sides of the first and second transparent substrates,
Wherein the side portions of the first and second transparent substrates are bonded to the reinforcing plate, the first and second cover layers as a whole through a hot melt adhesive.

A holder for holding a rear surface of the mobile device for touching and operating the screen formed on the front thereof so as to expose the screen, and a holder connected to a side of the holder to cover the front surface of the mobile device by turning operation, And a cover portion having an exposure hole that is opened to expose all or a part of the screen, wherein the transparent panel is transparently coupled to the exposure hole so that the screen is visible,
A first transparent substrate in contact with the front surface of the mobile device when the cover part covers the front surface of the mobile device;
A second transparent substrate disposed on the first transparent substrate;
An adhesive portion for adhering them in a central region between the first and second transparent substrates; And
And a functional part for adhering them at an edge area between the first and second transparent substrates with a stronger adhesive force than the adhesive part.

[10] The transparent panel for a case of a mobile device according to claim 9, wherein the functional part is bonded through a polymethyl methacrylate (PMMA) adhesive or a hot melt adhesive.

The transparent panel for a case of a mobile device according to claim 9, wherein the function unit comprises a shielding layer for shielding the light emitted from the screen or the light incident on the screen from the outside.

The transparent panel for a case of a mobile device according to claim 9, wherein the function unit includes an anti-glare unit for guiding irregular reflection of light emitted from the screen.

The transparent panel for a case of a mobile device according to claim 9, wherein the adhesive portion is adhered through an optical adhesive (OCA).

The display device according to claim 9, wherein the second transparent substrate comprises a glass substrate,
Wherein the first transparent substrate is made of a resin substrate that prevents glass fragments of the glass substrate from scattering.

The method of claim 9, wherein the first and second transparent substrates comprise first and second glass substrates,
Wherein a scattering prevention film is adhered between the first and second glass substrates to prevent their glass fragments from being scattered.

10. The apparatus of claim 9, wherein the cover portion
First and second cover layers overlapping each other; And
And a reinforcing plate which reinforces the inner side portions of the first and second cover layers in the exposure hole while contacting the sides of the first and second transparent substrates,
Wherein the side portions of the first and second transparent substrates are bonded to the reinforcing plate, the first and second cover layers as a whole through a hot melt adhesive.

17. The method of claim 16, wherein one of the first and second cover layers is formed on a side of the first and second transparent substrates such that the first and second cover layers A stepped step is formed in a direction parallel to the functional portion between the stepped portions,
Wherein the functional portion is adhered in an edge region covered by the step portion.