KR101911811B1 - Waterproof case of touch in-water for mobile device - Google Patents

Abstract

The present invention relates to an underwater touch waterproof case for a portable terminal. A waterproof case for a portable terminal, which is formed by using at least two resin sheets, a storage chamber which can be sealed by putting a portable terminal, characterized in that one outer surface of the storage chamber and a touch surface And an area of the touching fluid layer is formed to be equal to or larger than a touch surface area of the portable terminal to be accommodated in the storage room. Accordingly, it is an object of the present invention to provide a waterproof case with a fluid layer for insulating touch similar to an atmospheric environment, thereby enabling the touch function of a capacitive touch type portable terminal, such as a smart phone, . Further, the present invention provides a waterproof case that does not require a special expensive material for constructing a waterproof case, and can be manufactured at low cost by directly using a high frequency thermal bonding manufacturing process of a conventional resin film.

Description

WATERPROOF CASE OF TOUCH IN-WATER FOR MOBILE DEVICE

The present invention relates to a waterproof case for a portable terminal, and more particularly, to a waterproof case for a portable terminal having an electrostatic touch input means, and a fluid layer for touching between the outer surface of the waterproof case and the touch surface of the portable terminal. The present invention relates to a waterproof case for underwater touch for a portable terminal, which can freely use a touch function in water through a fluid layer.

2. Description of the Related Art Generally, a portable terminal such as a smart phone or a personal computer employs touch input means employing an electrostatic touch method. In the electrostatic touch method, as shown in FIG. 1, the touch means makes a state in which a current flows in a highly conductive glass 14 such as indium tin oxide (ITO). When the human finger 16 touches the glass surface 14 in this state, the electrons flowing in the glass surface are transferred to the finger 16 (the dielectric constant e is a constant), which is higher in dielectric constant than the air 12 About 100) so that the electric field at the position where the finger is touched is changed, and the touch input can be made by sensing the change.

Generally, the electrostatic touch method has various advantages such as a feeling of operation, smooth scrolling, and multi-touch as compared with, for example, a pressure sensitive touch method. Therefore, for example, a product including a variety of recent touch screens such as a smart phone, a tablet PC, and a kiosk uses an electrostatic touch method. However, since the electrostatic touch method is a method of operating using a minute change of the electric current amount, it is possible to use an electric current insulated leather or cloth glove, not a dielectric similar to a finger, or an insulator such as a nail, a stylus, There is a limitation in that it does not operate when a conductor is used.

For example, waterproof cases used to protect and store water on a rainy day or in a swimming pool, river, or ocean environment, such as smart phones, are generally manufactured using transparent or translucent plastic do. Although the resin film constituting the waterproof case is an insulating material, since it has a thickness as small as about 0.3 mm, the touch function of the smartphone can be operated even in a case where the smartphone is housed in a normal atmospheric environment. However, in the case of the smartphone housed in the waterproof case in the water, there is a problem in that it is inconvenient to operate the desired touch input such as a camera photographing operation with the same finger operation as in the atmospheric environment.

2 illustrates a case where a touch screen ST operated in the electrostatic touch manner of the smartphone S stored in the waterproof case 20 is touched with the hand 26 in the water 22. [ Generally, water has a dielectric constant of about 80, and oceans in which various ions are dissolved have a dielectric constant similar to that of a human body having a dielectric constant of about 100, since the dielectric constant is higher. therefore. In this case, since the difference between the dielectric constant of the water 22 and the hand 26 is not large, the sensor of the touch screen ST can not accurately identify the position where the hand 26 is touched.

Therefore, there is a technical requirement to allow a smartphone housed in a waterproof case to be touched in water. In order to meet such a demand, for example, Korean Patent Laid-Open Publication No. 10-2015-0101859 (published on Sep. 04, 2015) discloses a waterproof package for a portable personal terminal having a capacitive touch panel, And a touch auxiliary film is further attached to the inside of the film layer. Such a touch-assist film includes a material such as ITO (Indium Tin Oxide) which can change the electrical characteristics measured in the touch panel and has a transparent characteristic. However, the ITO proposed in this proposed technique is usually a conductive material used for transparent electrodes. Therefore, using such a conductive material to configure the capacitive touch panel to have a relatively low dielectric constant (i.e., hand-like) to the extent that it can be sensed requires a demanding manufacturing process. Even if a thin film is coated on a film member so that the ITO can be handily touched by hand as proposed in the above description, the coating process becomes not only an expensive precision process but also a cost of the material itself There are many problems such as high cost.

Therefore, there is still a need for a waterproof case for an electrostatic portable terminal capable of a new underwater touch operation that can be manufactured with a simple and inexpensive process that is not complicated while using inexpensive materials.

Korean Patent Publication No. 10-2015-0101859 (published on September 04, 2015) Korean Patent Publication No. 10-2014-0107996 (published on September 05, 2014)

The inventor of the present invention has found that, in the process of finding a waterproof case for an electrostatic type portable terminal capable of touch operation under water which can be manufactured with a less expensive material and an inexpensive manufacturing method, since water has a dielectric constant similar to that of a hand, The sensor of the touch panel of the portable terminal does not operate correctly; In contrast, since the dielectric constant of air and hand are sufficiently different from each other in the air and the plastic film layer constituting the waterproof case is sufficiently thin, the sensor of the touch panel of the portable terminal housed in the waterproof case operates correctly .

The inventor of the present invention has found that if a waterproof case is made of the same or similar resin film as that of the waterproof case to provide an insulating fluid layer similar to the atmospheric environment, It has been realized that the waterproof case can be manufactured at low cost by using the process of manufacturing the high frequency thermal bonding of the conventional resin film as it is without the need of expensive and expensive materials for constituting the waterproof case.

Accordingly, it is an object of the present invention to solve the problems of the conventional waterproof case for a portable terminal by using a resin film similar to a resin film constituting the waterproof case, The present invention provides a new underwater touch waterproof case for a portable terminal that can be manufactured at low cost while allowing a user to freely use a touch function in water by providing a fluid layer for touch.

The present invention relates to a touch waterproof case having a touch fluid layer, and more particularly, a touch fluid layer provided on one side of a housing of a waterproof case, The front camera of the portable terminal housed in the housing chamber can photograph the outside without disturbance of the fluid layer for touching so that the touch function can be freely used in the underwater, And to provide a new underwater touch waterproof case for a portable terminal that can be manufactured at low cost.

In addition, the present invention provides a touch waterproof case having a fluid layer for touching, particularly a fluid layer for touch provided on one surface of a housing of a waterproof case of a waterproof case, in the form of a separately formed fluid bag, And an object of the present invention is to provide a waterproof touch case for a portable terminal which can be manufactured inexpensively so as to provide an underwater touch function by inserting a fluid bag without change.

In addition, the present invention provides a touch waterproof case having a fluid layer for touch, and particularly, a fluid layer for touch provided on one surface of a housing of a mobile terminal of a waterproof case includes polyurethane (PU) And a hard sheet such as polyethylene terephthalate (PET) is formed on the side contacting with the portable terminal, so that the fluid filled in the touching fluid layer can be prevented from being sagged. And an object of the present invention is to provide an underwater touch waterproof case for a portable terminal.

This object is achieved by the underwater touch waterproof case for a portable terminal provided according to the present invention.

An underwater touch waterproof case for a portable terminal according to one aspect of the present invention is a waterproof case for a portable terminal formed by using at least two resin sheets in which a housing chamber capable of sealing a portable terminal can be sealed, And a touching fluid layer formed by using at least one resin sheet so as to be positioned between the outer surface and the touch surface of the portable terminal to be accommodated in the storage room and including an insulating fluid, Is formed to be equal to or larger than the touch surface area of the portable terminal to be stored in the storage room.

In one embodiment, the insulating fluid of the touching fluid layer may comprise any of nitrogen, helium, or air under atmospheric pressure.

In another embodiment, the insulating fluid of the touching fluid layer may be made of a non-compressible transparent liquid oil.

In another embodiment of the present invention, the touching fluid layer is a flat, generally rectangular plate-shaped inner space filled with an insulating fluid, and at one side of the quadrangle, the touch surface of the portable terminal And at least one leg portion extending from the periphery thereof so as not to interfere with the front face camera and the outer face of the receiving chamber so as to form a window region without the touching fluid layer.

In another embodiment, the accommodating chamber is formed by thermally bonding a resin sheet for a first storage chamber and a resin sheet for a second storage chamber along a predetermined thermal bonding line, and the touch fluid layer comprises: a resin sheet for the first storage chamber And the resin sheet for the second storage room, the third resin sheet is thermally bonded to the third resin sheet along a predetermined bonding line to fill the insulating space with the insulating fluid.

In another embodiment, the accommodating chamber is formed by thermally bonding a resin sheet for a first storage chamber and a resin sheet for a second storage chamber along a predetermined thermal bonding line, and the touch fluid layer is formed in a separate fluid bag As shown in FIG.

In another embodiment, the accommodating chamber is formed by thermally bonding the resin sheet for the first storage chamber and the resin sheet for the second storage chamber along a predetermined thermal bonding line, and the touch fluid layer is formed by thermally bonding the resin sheet for the first storage chamber and the resin sheet for the second storage chamber, And a separate fluid bag which is joined to the opening along the edge thereof so as to close the opening formed in the resin seat for one storage room.

In another embodiment, the fluid bag may be formed by filling an insulating fluid in a plate-shaped internal space formed by thermally bonding the resin sheet for the first bag and the resin sheet for the second bag against each other along the edges .

In another embodiment of the present invention, the fluid bag is a flat, substantially rectangular plate-shaped inner space filled with an insulating fluid, and at one side of the quadrangle, And at least one leg portion extending from the periphery of the camera to form a window region free of the touching fluid layer.

In yet another embodiment, in the fluid bag, the resin sheet for the first bag is formed of a soft resin material and disposed toward the outside of the storage chamber, and the resin sheet for the second bag is made of a hard resin material And may be disposed toward the touch surface of the portable terminal to be stored in the storage room.

In another embodiment, in the fluid bag, the resin sheets for the first and second bags may be made of the same soft resin material.

In another embodiment, in the fluid bag, the resin sheet for the first bag is made of a soft resin material and is disposed toward the outside of the storage chamber, and the resin sheet for the second bag is made of a soft sheet, Wherein the soft sheet is combined with the side of the resin sheet for the first bag to form the inner space, and the hard sheet is formed on the outer surface of the fluid bag, The surface facing the touch surface of the portable terminal to be stored in the portable terminal can be formed.

In another embodiment, the sheet for forming the accommodating chamber or the touching fluid layer may be a transparent or translucent resin sheet having a thickness of 0.1 to 1.0 mm, respectively.

In another embodiment, the thickness (H) of the touching fluid layer is preferably 1.0 to 10.0 mm.

In another embodiment, a pressure-sensitive adhesive that can be detached from the touch surface of the portable terminal can be applied to the outer surface of the resin sheet of the first bag-shaped resin sheet or the second bag-shaped resin sheet.

According to the present invention, by providing a fluid layer for insulating touch similar to the atmospheric environment by using a resin film similar to that of the waterproof case to the waterproof case, it is possible to provide a smartphone in a state of being housed in a waterproof case It is possible to accurately operate the touch function of the waterproof case, and furthermore, there is no need for a special expensive material for constituting the waterproof case, and the waterproof case can be manufactured at low cost by directly using the high frequency thermal bonding manufacturing process of the conventional resin film.

In addition, the present invention provides a touching fluid layer filled with air under atmospheric pressure or filled with non-compressible transparent liquid oil by using a resin film constituting a waterproof case on one surface of a mobile terminal housing chamber of a waterproof case, It is possible to provide a new underwater touch waterproof case for a portable terminal that can be manufactured at low cost while allowing the user to freely use the touch function even in water.

The present invention relates to a touch waterproof case having a touch fluid layer, and more particularly, a touch fluid layer provided on one side of a housing of a waterproof case, The front camera of the portable terminal housed in the housing chamber can photograph the outside without disturbance of the fluid layer for touching so that the touch function can be freely used in the water while preventing the camera shooting And a waterproof case for underwater touch for a new portable terminal which can be manufactured at low cost can be provided.

In addition, the present invention provides a touch waterproof case having a fluid layer for touching, particularly a fluid layer for touch provided on one surface of a housing of a waterproof case of a waterproof case, in the form of a separately formed fluid bag, It is possible to provide an in-water touch waterproof case for a portable terminal that can be manufactured at low cost, which can provide an underwater touch function by inserting a fluid bag without change.

In addition, the present invention provides a touch waterproof case having a fluid layer for touch, and particularly, a fluid layer for touch provided on one surface of a housing of a mobile terminal of a waterproof case includes polyurethane (PU) And a hard sheet such as polyethylene terephthalate (PET) is formed on the side contacting with the portable terminal, so that the fluid filled in the touching fluid layer can be prevented from being sagged. The underwater touch waterproof case for a portable terminal can be provided.

1 is a schematic view for explaining a general electrostatic touch method.
FIG. 2 is a schematic view for explaining a case where a portable terminal accommodated in a conventional waterproof case is touched by hand; FIG.
3 is a schematic perspective view showing an appearance of a waterproof touch waterproof case for a portable terminal according to an embodiment of the present invention.
4 is a schematic cross-sectional view showing the AA cross section of FIG. 3 when the portable terminal is housed.
FIG. 5 is a schematic cross-sectional view illustrating a case where a hand touches a part of FIG. 4 further enlarged; FIG.
6 is a schematic perspective view showing an appearance of an underwater touch waterproof case for a portable terminal according to another embodiment of the present invention.
7 is a schematic sectional view showing the B'-B 'cross section of FIG. 6 when the portable terminal is housed.
FIG. 8 is a schematic cross-sectional view showing the construction of a waterproof touch case for a portable terminal according to another embodiment of the present invention; FIG.
Fig. 9 is a schematic view for explaining a cross-sectional structure of a fluid bag which can be employed in the embodiment of Fig. 8; Fig.
Fig. 10 is a schematic view for explaining a planar structure of a fluid bag which can be employed in the embodiment of Fig. 8; Fig.
FIG. 11 is a schematic cross-sectional view showing the construction of a waterproof touch case for a portable terminal according to another embodiment of the present invention. FIG.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following description and drawings are only for illustrative purposes and are not intended to limit the scope of the invention. In other words, it is to be understood that the embodiments described below can be modified in various ways when they are implemented in the field, and if they are within the technical idea of the present invention, they should belong to the present invention. It will be readily understood by those skilled in the art.

As will be described in detail below with reference to the drawings, the present invention provides an underwater touch waterproof case for a portable terminal in the form of various embodiments. Particularly, the waterproof case of the present invention is characterized by providing a fluid layer for touch between the touch surface of the portable terminal and the outer surface of the waterproof case, when the portable terminal is housed. The fluid layer for touching has a thickness that does not significantly interfere with the touch operation, and at the same time provides insulation that enables electrostatic touch operation. The fluid layer for touch may be manufactured using a sheet of the same or similar material as the resin constituting the waterproof case, and may be manufactured integrally with the waterproof case or separately.

FIG. 3 is a schematic perspective view showing an appearance of an underwater touch waterproof case for a portable terminal according to an embodiment of the present invention, FIG. 4 is a schematic sectional view showing an AA cross section in FIG. 3 when the portable terminal is housed, 4 is a schematic cross-sectional view explaining a case in which a hand touches a part of the enlarged portion.

3 to 5, an underwater touch waterproof case 30 for a portable terminal according to an embodiment of the present invention is illustrated. The waterproof case 30 includes a receiving portion 32 and an opening and closing member 34. [ The accommodating portion 32 is formed by joining at least two sheets of resin sheet by heat bonding lines 320, except for the entrance and exit, as a portion for accommodating the portable terminal. The entrance / exit side of the accommodating portion 32 may be folded and then sealed by a separate opening / closing member 34. [

Since the structure and structure of the opening and closing member 34 of the waterproof case 30 are not related to the present invention, detailed description thereof will be omitted herein. In the present invention, it suffices that the opening and closing member 34 has only a function of sealing or opening the entrance of the storage portion 32, so that the opening and closing member need not be limited to the illustrated example, It will be apparent to those skilled in the art that the present invention may be practiced.

Meanwhile, the housing part 32 of the waterproof case 30 is a part for housing the portable terminal and is made of polyurethane or polyvinyl chloride (PVC) material having a thickness of 0.1 to 1.0 mm, preferably 0.3 to 0.5 mm Transparent or semi-transparent resin sheet. The thermal bonding process can be performed using a high-frequency thermal adapter. If the thickness of the resin sheet for constituting the waterproof case 30 is less than 0.1 mm, there is a problem that the waterproof function is difficult to maintain and tear easily during use. If the thickness exceeds 1.0 mm, the material cost is not economical There are disadvantages.

3 and 4, in addition to the storage compartment 42 for storing the portable terminal, the storage part 32 according to the present invention includes a fluid layer for touch 44 ). For this, three resin sheets 321, 323, and 325 may be formed by thermal bonding at the first bonding line 320 and the second bonding line 330, respectively.

In other words, in the illustrated example, the receiving portion 32 of the waterproof case 30 is configured such that the first resin sheet 321 and the second resin sheet 323 are connected to each other through a first U- And a housing chamber 42 which is formed by thermally bonding them to each other. In the storage chamber 42, the opening / closing member side where the non-thermally admitted opening / closing is opened or sealed. On the other hand, in the illustrated example, the touching fluid layer 44 formed on the upper portion of the storage chamber 42 is provided.

On the other hand, the touching fluid layer 44 provided on the housing chamber 42 of the accommodating portion 32 is sealed when it is manufactured and then kept in a sealed state afterwards. The second resin sheet 323 and the third resin sheet 325 form a first U-shaped junction line 320 and a second substantially U-shaped junction line 330 ). The fluid layer for touch 44 may be formed by thermally bonding an insulating fluid such as air, nitrogen, or helium under atmospheric pressure while filling the fluid layer 44.

On the other hand, the touching fluid layer 44 may be formed by filling transparent liquid oil (for example, liquid paraffin) which is non-compressible as an insulating fluid instead of air. This can be achieved by forming the touching fluid layer 44 by thermally bonding while filling the liquid oil as the fluid. When the touching fluid layer 44 is a gas, for example, when a waterproof case is used in deep water, such as when scuba diving in deep lakes or the sea, the gas contracts due to water pressure. As a result, the thickness H of the fluid layer 44 for touch is reduced, and the desired touch operation may not be smooth. On the other hand, when the touching fluid layer 44 is a liquid, there is an advantage that there is almost no shrinkage due to water pressure.

The thermal bonding step for forming the accommodating portion 32 having the accommodating chamber 42 and the touching fluid layer 44 may be performed in two steps. First, the step of thermally bonding the third resin sheet 325 to the second resin sheet 323 along the second bonding line 330 is performed, and then the first resin sheet 321, The sheet 323, and the third resin sheet 325 to the first bonding line 320. In this case, At this time, in the latter thermal bonding step, the process of filling the inner space formed by the second resin sheet 323 and the third resin sheet 325 with an insulating fluid (for example, air) can be performed at the same time, The resin sheet 323 and the third resin sheet 325 can be easily formed by thermally adhering the resin sheet 323 and the third resin sheet 325 at a predetermined interval in air under atmospheric pressure.

Here, the third resin sheet 325 for forming the touching fluid layer 44 may be located on the outer side or the inner side of the second resin sheet 323. The thickness H (see FIG. 5) of the fluid layer 44 for a touch may have a range of 1.0 to 10.0 mm, preferably about 3 to 8 mm. If the thickness of the fluid layer for touch 44 is less than 1.0 mm, it is difficult to maintain a stable distance between the touch panel and the touch screen in the water. If the thickness of the fluid layer for touch 44 exceeds 10.0 mm, there is a disadvantage that the touch feeling through the fluid layer for touch 44 is bad.

In general, in the case of a waterproof case for a smartphone, the storage chamber 42 of the storage portion 32 is large enough to accommodate various smartphones of about 4 to 6 inches, for example. The fluid layer for touch 44 is not necessarily the same as the area of the housing chamber 42 but is formed to be equal to or larger than the largest touch screen area among the touch screens of the smart phones to be stored in the housing chamber 42 .

When the fluid layer for touch 44 has a larger area than the touch screen ST of the smartphone S housed therein, The convex side surface portions 440 can help the position of the smartphone S housed in the housing chamber 42 to be fixed to some extent. Further, the convex side surface portions 440 can serve as a buffer for buffering the movement of the fluid generated at the time of touching.

The touching fluid layer 44 according to the present invention is characterized in that it is formed by a similar thermal bonding process using a resin sheet similar in material and shape to the resin sheet constituting the other part of the waterproof case. This provides the advantage of being easily manufactured using a simple and inexpensive material.

5, when the user touches the touch screen ST through the fluid layer 44 by hand even in the water, the resin sheets 325, 323 are all made of a flexible material and the fluid is relatively low in pressure such as atmospheric pressure so that the resin sheet 325 on the outside is easily recessed by the pressure applied by the finger in the position 50 where the finger is pressed. On the other hand, since the concave portion is pressurized by the surrounding fluid, the original gap can be stably maintained other than the position 50 where the finger is pressed. The sensor of the touch screen ST at the position 50 recessed by the fingers on the touching fluid layer 44 is positioned at a position corresponding to the air charged in the left and right touching fluid layer 44 of the position 50 It is possible to detect that a minute change of the electric field occurs due to the difference of the dielectric constant of the finger 56 of the position 50, and the accurate touch operation can be performed.

On the other hand, the touch fluid layer 44 can be filled with air or a transparent liquid oil as an insulating fluid. When the water pressure in the water is not high at a shallow water depth, such as in a swimming pool, a river or a beach, It is possible to maintain the thickness H of the fluid layer 44 for touch by overcoming the hydraulic pressure even if the fluid layer for touch 44 is filled with the air as shown in FIG. The sensor of the touch screen ST at the position 50 recessed by the touch sensor 50 detects the air charged in the left and right touch fluid layers 44 of the position 50 and the air of the finger 56 of the position 50 It is possible to detect that a minute change of the electric field occurs due to the difference of the constant, and the accurate touch operation can be performed.

On the other hand, for example, when diving activities are carried out at deep water depths in rivers or seas, the water pressure in the water becomes high. In this case, the third resin sheet 325, which is in contact with the water by the water pressure, presses the air filled with the touch fluid layer 44, compresses it, and moves to the second resin sheet 323 and can be closely contacted. In this case, an accurate touch operation of the touch screen ST can not be performed and an error may occur. It is preferable that the touch fluid layer 44 is filled with a transparent liquid oil as an insulating fluid. In this case, since the liquid oil filled in the fluid layer for touch 44 is non-compressible, the thickness H of the fluid layer for touch 44 between the third resin sheet 325 and the second resin sheet 323 The sensor of the touch screen ST at the position 50 recessed by the fingers on the touching fluid layer 44 is charged into the left and right touching fluid layers 44 of the position 50 as described above, It is possible to detect a minute change of the electric field due to the dielectric constant difference between the liquid oil and the finger 56 of the position 50,

FIG. 6 is a schematic perspective view showing an appearance of an underwater touch waterproof case for a portable terminal according to another embodiment of the present invention, and FIG. 7 is a schematic cross-sectional view illustrating a section B'-B 'of FIG. 6 when the portable terminal is housed.

6 and 7, an underwater touch waterproof case 60 for a portable terminal according to an embodiment of the present invention is illustrated. Compared with the waterproof case 30 described above with reference to Figs. 3 to 5, the waterproof case 60 according to this example has a storage part 62 having a storage chamber 72 and a touch fluid layer 74 And the opening and closing member 64 and that the receiving portion 62 is formed by joining three resin sheets 621, 623, and 625.

The second resin sheet 623 and the third resin sheet 625 constituting the fluid layer for touch 74 of the waterproof case 60 of the present example are connected to the first junction line for forming the housing chamber 72, (I.e., on the same surface as the touch screen) of the portable terminal, such as the smart phone S, stored in the storage room 72, in addition to the second connection line 630 of the entrance portion Camera) by a third bonding line 640 which forms a window 627 corresponding to the second bonding line 640. [ That is, in this example, in order to allow the front camera SC of the smartphone S housed in the storage chamber 72 to photograph the outside without passing through the touch fluid layer 74, the touch fluid layer 74, And the window 627 is formed in the window.

This window 627 is formed by a third U-shaped joint line 640 having a width W and a depth D on the side opposite to the entrance of the compartment 72 in the illustrated example . The third bonding line 640 is a line in which the second resin sheet 623 and the third resin sheet 625 are bonded to each other like the second bonding line 630. Window 627 provides a portion of the front camera SC free of touch fluid layer 74.

The width W and the depth D of the window 627 can be variously determined as long as the condition that the front camera SC is not disturbed by the touching fluid layer 74 is satisfied. Thus, it will be appreciated that the shape, size, and position of the window 627 need not be limited to the illustrated example, but may be of various shapes, sizes, and positions.

In other words, in the waterproof case 60 of the illustrated example, the touch fluid layer 74 provided on one surface of the portable terminal storage chamber 72 is provided with a touch fluid A window 627 is provided to form a layerless form. Accordingly, the front camera of the portable terminal housed in the waterproof case can photograph the outside without interfering with the fluid layer for touch, thereby providing the convenience of minimizing interference with the camera shooting while freely using the touch function in water.

8 is a schematic cross-sectional view illustrating the configuration of a waterproof touch case for a portable terminal according to another embodiment of the present invention.

Referring to FIG. 8, an underwater touch waterproof case 80 for a portable terminal according to an embodiment of the present invention is illustrated. In this example, the waterproof case 80 includes a receiving portion 82 and a fluid bag 84. [

In the storage section 82, a storage chamber 822 is formed by joining at least two resin sheets 821, 823 along the edge bonding line 820, except for the entrance and exit, to the portion for housing the portable terminal. An entrance port (not shown) (similar to the entrance port of FIG. 3) of the storage unit 82, that is, an entrance port for loading or unloading the portable terminal into or from the storage unit can be folded and then sealed by a separate opening and closing member.

The fluid bag 84 is manufactured in a state of being separated from the receiving part 82 and is inserted into the receiving part 82 through the entrance of the receiving part 82 like the portable terminal S, Can be removed.

On the other hand, a releasable pressure-sensitive adhesive (not shown) is applied to the outer surface of one of the two resin sheets 821 and 823 constituting the fluid bag 84, The pocket 84 can be detachably attached to the touch surface of the portable terminal. The pressure-sensitive adhesive preferably protects the release paper before use.

As described above, since the fluid bag 84 is attached to the touch surface of the portable terminal by forming the pressure sensitive adhesive on the fluid bag 84, there is an advantage in that it is convenient when the fluid bag 84 is inserted into or withdrawn from the storage portion 82. Further, It is possible to protect the touch surface of the portable terminal by protecting the fluid bag 84 from the storage part 82 and using the fluid bag 84 in the atmospheric environment with the fluid bag 84 attached to it, .

In the illustrated example, the fluid bag 84 is formed by thermally bonding two sheets 841 and 843 to each other, and as a result, has an inner space 842 in the form of a plate. The inner space 842 may be filled with a transparent insulating liquid such as air or a transparent insulating liquid such as paraffin oil. With such a configuration, the fluid bag 84 can provide a fluid layer for touch between the outer surface of the storage portion 82 and the touch surface ST of the portable terminal S.

This embodiment is characterized in that the fluid layer for touching is provided separately from the waterproof case. Compared with the case where the fluid layer for touching is integrally formed with the waterproof case, there is provided an advantage that the fluid layer for touch can be easily constructed and used for a conventional waterproof case without a fluid layer for touching. Furthermore, the touch layer can be easily replaced when damage occurs to the fluid layer for touching. In addition, when the waterproof case is used in water, the fluid bag can be inserted and used, and when the waterproof case is used in an atmospheric environment outside the water, the fluid bag can be used in a detached state.

Fig. 9 is a schematic view for explaining a cross-sectional structure of a fluid bag according to the embodiments of the present invention, which can be employed in the embodiment of Fig. 8;

First, referring to FIG. 9A, an inner space 942 is formed by thermally joining a first sheet 943 and a second sheet 941, which are made of the same soft material, such as polyurethane, And a fluid bag 94 filled with an insulating fluid. The fluid bag 94 of this example is advantageous in that it is simple to manufacture and can use the soft sheet of the same material as the waterproof case, which is advantageous in manufacturing cost. However, when the user uses the portable terminal housed in the waterproof case to stand vertically without holding it horizontally, the liquid filled in the fluid bag 94 tilts downward, and the fluid leaking downward flows under the fluid bag 94 It can be convex. As a result, there is a disadvantage that a touch operation can not be performed because there is no fluid above the fluid bag 94.

9 (b), a first sheet 943 'made of a soft material such as polyurethane and a second sheet 941' made of a hard material such as polyethylene terephthalate are brought into contact with each other to heat Shows an example of a fluid bag 94 'in which an inner space 942' is formed by bonding and an insulating fluid is filled. The fluid bag 94 'of this example provides a hard sheet on one side. Therefore, even if the user holds the portable terminal housed in the waterproof case horizontally and vertically and uses the liquid filled in the fluid bag 94 'to be directed downward, The tendency to make the underside convex can be restrained by the hard sheet. As a result, since the fluid may still be present above the fluid bag 94 ', there is an advantage that the touch operation can be performed relatively stably. However, the bonding force between the soft sheet and the hard sheet may be relatively weak, and if there is a strong impact, the junction of the fluid bag 94 'may be damaged.

9C, a first sheet 943 "made of a soft material such as polyurethane, a hard sheet 9411 such as polyethylene terephthalate, and a double sheet of soft sheet 9412 such as polyurethane, for example, Shows the example of the fluid bag 94 "in which the inner space 942 " is formed by thermally bonding the second sheet 941" The fluid bag 94 "in this example provides both the hard sheet and the soft sheet on one side. Therefore, even if the user does not hold the portable terminal housed in the waterproof case horizontally, Even though the filled liquid is directed downward, the downwardly directed liquid may tend to be tended to be convex underneath the fluid bag 94 ". The result is that the fluid bag 94 " Since the fluid may be present, the touch operation can be relatively stably performed. Further, since the inner space filled with the insulating fluid is formed by the joining between the soft sheet and the soft sheet, the stability of the inner space can be increased.

Fig. 10 is a schematic view for explaining a planar structure of a fluid bag which can be employed in the embodiment of Fig. 8; Fig.

Referring to Fig. 10, the fluid bag 104 is an inner space filled with an insulating fluid in the form of a flat, substantially rectangular plate similar to the fluid bag described above. In particular, as shown, the fluid bag 104 further includes one or more legs 1041, 1042 extending from one side of the generally rectangular body 1040. These legs 1041 and 1042 are for functionality similar to the window structure described above with reference to Figures 6 and 7. In other words, the legs 1041 and 1042 extend around the touch surface of the portable terminal to be housed in the storage chamber of the waterproof case so as not to interfere with the front face camera and the outer surface of the storage chamber. As a result, a window area having no fluid layer for touch is formed on the front camera of the portable terminal and its periphery.

FIG. 11 is a schematic cross-sectional view illustrating the construction of a waterproof touch case for a portable terminal according to another embodiment of the present invention.

Referring to FIG. 11, an underwater touch waterproof case 110 for a portable terminal according to an embodiment of the present invention is illustrated. In this example, the waterproof case 110 includes a housing part 112 and a fluid bag 114. [

The housing section 112 is formed by housing at least two resin sheets 1121 and 1123 except for the entrance and exit sections along the joining line 1120 at the edges. An entrance (not shown) (similar to the doorway in FIG. 3) of the storage unit 112, that is, an entrance for loading or unloading the portable terminal from the storage unit can be folded and then sealed by a separate opening and closing member. Particularly, in this example, the sheet 1123 on one side of the storage portion 112 has a generally rectangular opening. The area of the opening may be approximately equal to or larger than the area of the touch surface of the portable terminal housed in the housing chamber 1122. [

The fluid bag 114 may be separately manufactured, for example, to have any of the configurations shown in Fig. That is, the fluid bag 114 is formed by thermally bonding the two sheets 1141 and 1143 to each other, and as a result, has an inner space 1142 in the form of a plate. The inner space 1142 may be filled with a transparent insulating liquid such as air or a transparent insulating liquid such as paraffin oil.

The fluid bag 114 may then be joined by thermally bonding the edge of the fluid bag 114 and the inner edge of the opening in order to close the opening of the sheet 1123 of the housing part 112. [

The fluid bag 114 can provide a fluid layer for touch between the outer surface of the housing part 112 and the touch surface ST of the portable terminal S. [

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course, fall within the scope of the present invention.

30: Waterproof case
32:
321: first resin sheet
323: second resin sheet
325: Third resin sheet
320: first bonding line
330: second bonding line
42: compartment
44: fluid layer for touch

Claims (15)

1. A waterproof case for a portable terminal, comprising: a housing chamber in which a portable terminal can be sealed by using at least two resin sheets,
And a touching fluid layer formed by using at least one resin sheet so as to be positioned between one outer surface of the accommodating chamber and a touch surface of the portable terminal accommodated in the accommodating chamber,
Wherein the housing chamber is formed by thermally bonding a resin sheet for a first housing chamber and a resin sheet for a second housing chamber along a predetermined thermal bonding line,
Wherein the touch fluid layer is formed in a resin sheet of any one of the resin sheet for the first storage chamber and the resin sheet for the second storage chamber, and the third resin sheet having an area larger than the touch surface area of the portable terminal, And an insulating fluid is filled in an inner space formed by thermally adhering to the outer peripheral surface of the base member,
Wherein the inner space of the touching fluid layer is in a state of being sealed and closed by the third resin sheet with respect to the space of the storage room.
The method according to claim 1,
Wherein the insulating fluid of the touch fluid layer comprises any one of nitrogen, helium, and air under an atmospheric pressure.
The method according to claim 1,
Wherein the insulating fluid of the touch fluid layer is made of a transparent liquid oil which is non-compressible.
The method according to claim 1,
The sealed inner space of the touching fluid layer
And a window region in which the insulating fluid is not charged at a position that does not disturb between the front face camera and the outer face of the storage room, among the touch faces of the portable terminal to be stored in the storage room. case.
delete 1. A waterproof case for a portable terminal, comprising: a housing chamber in which a portable terminal can be sealed by using at least two resin sheets,
And a touching fluid layer formed by using at least one resin sheet so as to be positioned between one outer surface of the accommodating chamber and a touch surface of the portable terminal accommodated in the accommodating chamber,
Wherein the housing chamber is formed by thermally bonding a resin sheet for a first housing chamber and a resin sheet for a second housing chamber along a predetermined thermal bonding line,
Wherein the fluid layer for touching is formed by a fluid bag filled with an insulating fluid in an inner space of a flat and substantially rectangular plate shape,
Wherein the fluid bag is manufactured by thermally bonding a resin sheet for a first bag and a resin sheet for a second bag together in an area larger than a touch surface area of the portable terminal to be housed in the housing chamber, along the edge, Lt; / RTI &
Wherein the inner space of the fluid bag is sealed and sealed from the storage room space.
delete delete The method according to claim 6,
The sealed inner space of the fluid bag
And a window region in which the insulating fluid is not charged at a position that does not disturb between the front face camera and the outer face of the storage room, among the touch faces of the portable terminal to be stored in the storage room. case.
delete delete The method according to claim 6,
In the fluid bag,
Wherein the resin sheet for the first bag is made of a soft resin material and disposed toward the outside of the storage chamber,
Wherein the resin sheet for the second bag is formed as a double sheet in which a soft sheet and a hard sheet are bonded to each other, wherein the soft sheet is combined with the resin sheet side for the first bag to form the inner space, Wherein the hard sheet forms a surface of the outer surface of the fluid bag facing the touch surface of the portable terminal to be stored in the storage chamber.
delete delete The method according to claim 6,
Wherein the pressure sensitive adhesive is applied to the outer surface of the resin sheet of either the first bag-shaped resin sheet or the second bag-shaped resin sheet so as to be detachable from the touch surface of the portable terminal. case.

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