CN105101695A - Protective housing of electronic device and method for transmitting sound in airtight environment - Google Patents
Protective housing of electronic device and method for transmitting sound in airtight environment Download PDFInfo
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- CN105101695A CN105101695A CN201410190204.6A CN201410190204A CN105101695A CN 105101695 A CN105101695 A CN 105101695A CN 201410190204 A CN201410190204 A CN 201410190204A CN 105101695 A CN105101695 A CN 105101695A
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Abstract
Provided is a protective housing of an electronic device and a method for transmitting sound in airtight environment. The protective housing mainly comprises a casing defining a sealed receiving space. The receiving space is used for receiving the electronic device. The electronic device is provided with a screen, a sound generating portion and/or a sound receiving portion. The casing is provided with a screen protective film at a position corresponding to the screen of the electronic device. An air chamber is defined between the screen protective film and the electronic device. The screen protective film comprises a polyethylene terephthalic acid ester layer and has a thickness between 0.05 and 0.25mm. Certain distance is arranged between the screen protective film and a second casing and is 0.25mm. The screen protective film is used as a vibrating diaphragm in order to transmit sound to the sound receiving portion and transmit the sound generated by the sound generating portion out of the receiving space.
Description
Technical field
The present invention has about a kind of protective housing of electronic installation and the method at airtight environment transmission sound.
Background technology
For preventing that electronic installation has dirt, scratch, or damage because of making moist, dealer is had to research and develop as Chinese patent numbering CN202652296U " waterproof mobile phone containment vessel " at present, its structure mainly comprises fore shell and the back cover of connection sealed to each other, mobile phone is encapsulated in closed cavity that described fore shell and back cover formed, described fore shell is provided with receiver sound mouth, and waterproof membrane is provided with on receiver sound mouth, water can not be entered in containment vessel, but sound still can be spread out of by the mode vibrating waterproof membrane, reach whereby and make preventing mobile phone dirty, the object of scratch resistant and waterproof.
But mobile phone is loaded in containment vessel; inevitably allow the volume attenuation of mobile phone; cannot effectively by the sound of mobile phone toward unofficial biography; for this reason; dealer is had to be the situation alleviating mobile phone volume attenuation in a protective case; research and development have US Patent No. 20130271902 " Waterproofcase "; it mainly defines an air chamber between the screen protecting film of mobile phone and housing; the source of sound of mobile phone is also directed to this air chamber by this housing; using the screen protecting film utilizing area larger as vibrating diaphragm; by source of sound toward unofficial biography, reduce the decay of volume whereby.
But above-mentioned front case only can accomplish the attenuation reducing volume, and effect is not remarkable, and case is under most audio conditions before this, and radio reception effect, all far below the effect not loading shells, therefore still has not enough place to have much room for improvement in practicality.
Summary of the invention
Whence this; after loading containment vessel, the shortcoming of volume attenuation is had in order to improve electronic installation; the present inventor is devoted to research; and develop a kind of protective housing of electronic installation and transmit the method for sound at airtight environment; it utilizes the screen protecting film of shells as vibrating diaphragm to transmit sound; and by preferably parameter designing, make electronic installation still have excellent radio reception and/or voice effect after loading airtight shells.
For reaching above-mentioned purpose, solution of the present invention is:
A protective housing for electronic installation, comprises:
One shells, comprise one first housing, one seal and one second housing, this first housing and this second housing are detachably bonded to each other and the sandwiched seal, to define a closed accommodation space between this first housing and this second housing, this accommodation space is in order to load an electronic installation, this electronic installation has a screen and has a source of sound generating unit and/or a source of sound acceptance division, this second housing is in a screen place of electronic installation being provided with a screen protecting film, an air chamber is defined between this screen protecting film and this electronic installation, using by this screen protecting film as a vibrating diaphragm, and transmit a source of sound to this source of sound acceptance division and/or be passed to outside this accommodation space by this source of sound of this source of sound generating unit, this screen protecting film comprises a polyethylene terephthalate layer (PET), and this screen protection film thickness is between 0.05mm to 0.25mm, a distance is had between this screen protecting film and this electronic installation, this distance is essentially 0.25mm.
Further, aforementioned second housing is provided with should a support of electronic installation, and this electronic installation is butted on this support to form aforementioned air chamber.
Further, this second housing has a port, and this second housing is provided with aforementioned support along this passage port, this screen protecting film this second housing coated and this support, to close this port.
Further, this second housing has a port, and this second housing is provided with aforementioned support along this passage port, this screen protecting film with hot-forming this second housing coated and this support, with close this port.
Further, aforementioned support is annular, and the development length of aforementioned support is 2mm to 5mm.
Further, this first housing has a joint portion, this second housing has a fit portion of cover this joint portion solid.
Further, the seal is ring-type and is equipped with a flange, and the fit portion of this second shells is arranged with a caulking groove, and this caulking groove embeds for the flange of the seal.
Further, this screen protecting film is in this screen protecting film to being extruded with plural convex grain in air chamber place, and aforementioned convex grain diameter is between 0.06mm to 0.08mm, and aforementioned convex grain has an interval to each other again, and this is spaced apart 1mm.
Further, this shells is provided with should a stopper of electronic installation side in this accommodation space place, make whereby the source of sound generating unit of this electronic installation, this source of sound acceptance division all with have the gap being communicated with this air chamber between this shells.
Further, this electronic installation has one first rake in the interplanar of this side and this screen, and this shells is also provided with aforementioned separated should one second rake of the first rake.
Further, the material of this first housing and this second housing is all polyphenylene sulfide (Polyphenylenesulfide, PPS) and/or the nylon (Nylon) of combined fiberglass.The shells of this kind of material and the screen protecting film of PET material better in conjunction with effect, can avoid screen protecting film after hot-forming or produce distortion, fold in use procedure.
The present invention is also a kind of protective housing of electronic installation, comprise: a shells, define an accommodation space of sealing, this accommodation space is in order to load an electronic installation, this electronic installation has a screen and has a source of sound generating unit and/or a source of sound acceptance division, to having a screen protecting film in screen of electronic device place in this shells, an air chamber is defined between this screen protecting film and this electronic installation, to transmit a source of sound by this screen protecting film as a vibrating diaphragm to this source of sound acceptance division and/or be passed to outside this accommodation space by this source of sound of this source of sound generating unit, this film comprises a polyethylene terephthalate layer (PET), and this film thickness is between 0.05mm to 0.25mm, a distance is had between this film and this second housing, this distance is essentially 0.25mm.
The present invention is also a kind of method transmitting sound at airtight environment, comprises the following step:
A, provide the film of a source of sound generating unit in an airtight accommodation space and a polyethylene terephthalate layer (PET) in fact at a distance of 0.25mm, wherein film thickness is between 0.05mm to 0.25mm;
When B, a source of sound generating unit at this accommodation space in outer and/or this accommodation space produce a source of sound, this film will be utilized as the vibrating diaphragm transmitting this source of sound.
Effect of the present invention is:
1, the present invention utilizes the screen protecting film of shells as vibrating diaphragm to transmit sound, and by preferably parameter designing, makes electronic installation still have excellent radio reception and/or voice effect after loading airtight shells.Be particularly suitable for the hand-free microphone dialogue of mobile phone.
2, screen protecting film of the present invention utilizes hot pressing mode screen protecting film; allowing this screen protecting film be able to the better mode of bond strength is on the one hand combined on this second housing; screen protecting film will be tightened up because of shrinkage after hot-forming on the other hand, make this screen protecting film because the tension force vibration frequency that more Gao Eryou is higher.
3, screen protecting film of the present invention there is plural convex grain, produce water wave, bubble in use to avoid screen protecting film.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that the embodiment of the present invention loads electronic installation;
Fig. 2 is the three-dimensional exploded view of the embodiment of the present invention;
Fig. 3 is the close-up schematic view at B place in Fig. 2 of the present invention;
Fig. 4 is that the embodiment of the present invention is in the 5-5 cross-sectional schematic of Fig. 1;
Fig. 5 be the embodiment of the present invention in shells by the using state schematic diagram of sound toward unofficial biography;
Fig. 6 be the embodiment of the present invention by transmission sound to the using state schematic diagram (the 6-6 partial enlargement of Fig. 1 is analysed and observe) in shells;
Fig. 7 is that electronic installation is loaded different screen diaphragm thickness shells and the radio reception experimental data figure under different audio conditions not loading shells by the present invention;
Fig. 8 is that electronic installation is loaded different screen diaphragm thickness shells and do not load the pronunciation experimental data figure of shells under different audio conditions by the present invention.
S source of sound t interval, [symbol description] 1 stopper 12 seal 121 flange 13 second housing 131 fit portion 132, shells 11 first housing 111 joint portion 112 caulking groove 133 screen protecting film 134 support 135 air chamber 136 port 137 convex grain 130 second rake 14 accommodation space A electronic installation A1 screen A21 source of sound generating unit A22 source of sound acceptance division A3 side A4 first rake P gap.
Embodiment
In order to explain technical scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
First refer to Fig. 1 and Fig. 2, show the protective housing of electronic installation of the present invention, in order to load an electronic installation A, this electronic installation A has a screen A1, a source of sound generating unit A21 and a source of sound acceptance division A22.
This shells 1 has one first housing 11, seal 12 and one second housing 13 to be covered on this first housing 11 and the sandwiched seal 12, and defines an accommodation space 14 that can seal accommodating this electronic installation A.
This first housing 11 and this second housing 13 preferably detachably combine each other, such as this first housing 11 has a joint portion 111, this second housing 13 there is the fit portion 131 for cover this joint portion 111 solid, or all can with first this second housing 13 of housing 11 fit, main purpose be all person easy to use needs waterproof and dustproof or anti-dirty time just electronic installation A can be loaded in shells 1, or replace the shells 1 of different outward appearance style.
Certainly, if be also one of feasible mode using this shells 1 as the shells 1 forming electronic installation A itself.It is preferred that the seal 12 is ring-type and is equipped with a flange 121, and the fit portion 131 of this second housing 13 is arranged with a caulking groove 132, this caulking groove 132 embeds for the flange 121 of the seal 12, to promote the effect of sealing further.
And the material of aforementioned first housing 11 and aforementioned second housing 13 be all in this enforcement combined fiberglass polyphenylene sulfide (Polyphenylenesulfide, and/or nylon (Nylon) PPS), main purpose is to make shells 1 have intensity and lightweight concurrently, if therefore have the identical or close rigidity of other tools and light-weighted material also to can be used as the selection of replacement.
And read Fig. 4, this second housing 13 is to the screen A1 place of electronic installation A being provided with a transparent screen protecting film 133, and aforementioned second housing 13 is provided with should the support 134 of electronic installation A, and this electronic installation A is butted on this support 134 to form an air chamber 135.
This screen protecting film 133 is mainly a polyethylene terephthalate layer PET, but also can be coated with hardened layer and electrostatic rete further, and this screen protection film thickness is between 0.05mm to 0.25mm.Preferably 0.125mm to 0.25mm; and there is certain hardness (as: 3H ~ 3.5H); because cross thin screen protecting film and not easily increase hardening coat again; if screen protecting film 133 is crossed thin just easy after hot-forming or such as bear hydraulic pressure produce distortion, fold under different service condition, and affects the vibrating effect of screen protecting film 133.More specifically; this second housing 13 has a port 136; this second housing 13 is extended with aforementioned support 134 in this port 136 place; and this screen protecting film 133 is with hot-forming such as in-molded coated in conjunction with this second housing 13 and this support 134; to close this port 136; this screen protecting film 133 is made to be combined on this second housing 13 in the mode that bond strength is better on the one hand; screen protecting film 133 will be tightened up because of shrinkage after hot-forming on the other hand, make this screen protecting film 133 because the tension force vibration frequency that more Gao Eryou is higher.
What remark additionally is; this support 134 is such as the thin slice of thickness 0.25mm to 0.3mm; be essentially 0.25mm but may nearmis be there is; arrange along aforementioned port 136 periphery interval; but not as limit; also can be the different kenels such as flange, spaced salient point, projection, main purpose be all to allow electronic installation A and this screen protecting film 133 have the distance producing aforementioned air chamber 135.Preferably, the development length of this thin slice is 2mm to 5mm, makes this electronic installation A can have larger contact area, stable support electronic installation A whereby, makes that electronic installation A is unlikely to be rocked.
And read Fig. 3, preferably, this screen protecting film 133, to being extruded with plural convex grain 137 in air chamber 135 place, produces water wave, bubble in use to avoid screen protecting film 133.Specifically, aforementioned convex grain 137 diameter is between 0.06mm to 0.08mm, and aforementioned convex grain 137 has an interval t to each other again, and this interval t is 1mm, allows user when watching the screen of electronic installation A through screen protecting film 133 whereby, not easily perceives aforementioned convex grain 137.
What illustrate is, in the present embodiment, position is not at grade for screen A1, the source of sound generating unit A21 of this electronic installation A and source of sound acceptance division A22, this source of sound generating unit A21 and source of sound acceptance division A22 is position on a side A3 of vertical this electronic installation A haply, therefore the present embodiment is provided with at this first housing 11 place should the stopper 112 of electronic installation A side A3, makes the source of sound generating unit A21 of this electronic installation A whereby and has the gap P being communicated with aforementioned air chamber 135 between source of sound acceptance division A22 with this second housing 13.Will remark additionally in addition, this electronic installation A has one first rake A4 in the interplanar of this side A3 and this screen A1, and this shells 1 is also provided with in this second housing 13 and equally separates should one second rake 130 of the first rake A0 with gap P.It is preferred that this stopper 112 be position inside the joint portion 111 of this first housing 11, but not as limit, also can be arranged on the second housing 13, main purpose be all to allow shells 1 can and the side A3 of electronic installation A between have aforementioned gap P.
Continue and refer to Fig. 5, disclose the use schematic diagram that source of sound S transmits by shells 1 by electronic installation A of the present invention outward, after aforementioned electronic A loads shells 1, because this second housing 13 has should the support 134 of electronic installation A screen A1 plane, and the stopper 113 of corresponding electronic installation A side A3, and this shells 1 is also provided with in this second housing 13 and equally separates should one second rake 130 of the first rake A4 with gap P, gap P is made to be communicated with air chamber 135 whereby.
When the source of sound generating unit A21 of electronic installation A produces source of sound S; source of sound S will lead to air chamber 135 via gap P; and make screen protecting film 133 be subject to source of sound S impact and vibrate; and then source of sound S is passed toward outside shells 1; and relatively preferably to design due to the geometric parameter of this case screen protecting film 133 and having with the value of the spacing of this electronic installation A; therefore the volume attenuation of source of sound S can not only significantly be reduced; even also can amplify the volume of source of sound S further, promote the practicality of electronic device protection case body whereby.
Continue and refer to Fig. 6; disclose the use schematic diagram of electronic installation A by shells 1 radio reception; if source of sound is when shells 1 accommodation space 14 is outside; equally can by this screen protecting film 133 as the vibrating diaphragm transmitting this source of sound; and make the sound wave of source of sound lead to gap P via air chamber 135, and then be passed to the source of sound acceptance division A22 of electronic installation A.And above-mentioned radio reception effect also significantly reduces the decay of radio reception volume, even also can further improve original volume, promote the practicality of electronic device protection case part whereby.
Continue and refer to Fig. 7 and Fig. 8; be respectively and electronic installation loaded different screen diaphragm thickness shells and do not load shells; radio reception experimental data figure under different audio conditions and pronunciation experimental data figure; from experimental result; the screen protecting film of shells 1 at thickness between the radio reception of 0.05mm to 0.25mm and voice effect all higher than not loading shells 1; but screen protecting film thickness at 0.25mm time; although radio reception and voice effect are all higher than not loading shells 1 haply, but existing part is a little less than the effect not loading shells.
Table one does not load shells for electronic installation and loads different screen diaphragm thickness under different audio conditions, the experimental data of test radio reception:
| 800Hz | 1000Hz | 1200 Hz | 1400 Hz | 1600 Hz | 2000 Hz | |
| none | 58dB | 63dB | 64dB | 65dB | 69dB | 70dB |
| 0.05mm | 60dB | 64dB | 65dB | 72dB | 70dB | 74dB |
| 0.125mm | 63dB | 63dB | 67dB | 69dB | 72dB | 72dB |
| 0.188mm | 63dB | 65dB | 67dB | 70dB | 72dB | 73dB |
| 0.25mm | 63dB | 64dB | 65dB | 74dB | 68dB | 74dB |
Table two does not load shells for electronic installation and loads different screen diaphragm thickness under different audio conditions, the experimental data of test sound transmission effect outward:
| 800Hz | 1000Hz | 1200Hz | 1400Hz | 1600Hz | 2000Hz | |
| none | 65dB | 66dB | 66dB | 67dB | 66dB | 69dB |
| 0.05mm | 66dB | 67dB | 67dB | 68dB | 69dB | 72dB |
| 0.125mm | 65dB | 66dB | 68dB | 67dB | 70dB | 72dB |
| 0.188mm | 66dB | 67dB | 69dB | 67dB | 68dB | 71dB |
| 0.25mm | 67dB | 65dB | 67dB | 66dB | 69dB | 70dB |
Table three is the material character of 0.125mm screen protecting film
Table four is the material character of 0.188mm screen protecting film
The explanation of comprehensive above-described embodiment, when the effect fully can understanding operation of the present invention, use and the present invention produce, only the above embodiment is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, namely do simply equivalence change according to the present patent application the scope of the claims and invention description content and modify, in the scope that all genus the present invention is contained.
Claims (13)
1. a protective housing for electronic installation, comprises:
One shells, comprise one first housing, one seal and one second housing, this first housing and this second housing are detachably bonded to each other and the sandwiched seal, to define a closed accommodation space between this first housing and this second housing, this accommodation space is in order to load an electronic installation, this electronic installation has a screen and has a source of sound generating unit and/or a source of sound acceptance division, this second housing is in a screen place of electronic installation being provided with a screen protecting film, an air chamber is defined between this screen protecting film and this electronic installation, using by this screen protecting film as a vibrating diaphragm, and transmit a source of sound to this source of sound acceptance division and/or be passed to outside this accommodation space by this source of sound of this source of sound generating unit, it is characterized in that:
This screen protecting film comprises a polyethylene terephthalate layer, and this screen protection film thickness is between 0.05mm to 0.25mm, has a distance between this screen protecting film and this electronic installation, and this distance is essentially 0.25mm.
2. the protective housing of electronic installation as claimed in claim 1, is characterized in that: aforementioned second housing is provided with should a support of electronic installation, and this electronic installation is butted on this support to form aforementioned air chamber.
3. the protective housing of electronic installation as claimed in claim 1, it is characterized in that: this second housing has a port, this second housing is provided with aforementioned support along this passage port, this screen protecting film this second housing coated and this support, to close this port.
4. the protective housing of electronic installation as claimed in claim 2; it is characterized in that: this second housing has a port; this second housing is provided with aforementioned support along this passage port, this screen protecting film with hot-forming this second housing coated and this support, with close this port.
5. the protective housing of electronic installation as claimed in claim 4, is characterized in that: aforementioned support is annular, and the development length of aforementioned support is 2mm to 5mm.
6. the protective housing of electronic installation as claimed in claim 1, is characterized in that: this first housing has a joint portion, this second housing has a fit portion of cover this joint portion solid.
7. the protective housing of electronic installation as claimed in claim 6, is characterized in that: the seal is ring-type and is equipped with a flange, and the fit portion of this second shells is arranged with a caulking groove, and this caulking groove embeds for the flange of the seal.
8. the protective housing of electronic installation as claimed in claim 1; it is characterized in that: this screen protecting film in this screen protecting film to being extruded with plural convex grain in air chamber place; aforementioned convex grain diameter is between 0.06mm to 0.08mm, and aforementioned convex grain has an interval to each other again, and this is spaced apart 1mm.
9. the protective housing of electronic installation as claimed in claim 1; it is characterized in that: this source of sound generating unit and this source of sound acceptance division are that position is on a side of this electronic installation; this shells is provided with should a stopper of electronic installation side in this accommodation space place, make whereby the source of sound generating unit of this electronic installation, this source of sound acceptance division all with have the gap being communicated with this air chamber between this shells.
10. the protective housing of electronic installation as claimed in claim 9; it is characterized in that: this electronic installation has one first rake in the interplanar of this side and this screen, and this shells is also provided with aforementioned separated should one second rake of the first rake.
The protective housing of 11. electronic installations as claimed in claim 1, is characterized in that: the material of this first housing and this second housing be all combined fiberglass polyphenylene sulfide and/or nylon.
The protective housing of 12. 1 kinds of electronic installations, is characterized in that, comprises:
One shells; define an accommodation space of sealing; this accommodation space is in order to load an electronic installation; this electronic installation has a screen and has a source of sound generating unit and/or a source of sound acceptance division; to having a screen protecting film in screen of electronic device place in this shells; an air chamber is defined between this screen protecting film and this electronic installation; to transmit a source of sound by this screen protecting film as a vibrating diaphragm to this source of sound acceptance division and/or be passed to outside this accommodation space by this source of sound of this source of sound generating unit, it is characterized in that:
This film comprises a polyethylene terephthalate layer, and this film thickness is between 0.05mm to 0.25mm, and have a distance between this film and this second housing, this distance is essentially 0.25mm.
13. 1 kinds are transmitted the method for sound at airtight environment, it is characterized in that, comprise the following step:
A, provide the film of a source of sound generating unit in an airtight accommodation space and a polyethylene terephthalate layer in fact at a distance of 0.25mm, wherein film thickness is between 0.05mm to 0.25mm;
When B, a source of sound generating unit at this accommodation space in outer and/or this accommodation space produce a source of sound, this film will be utilized as the vibrating diaphragm transmitting this source of sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190204.6A CN105101695A (en) | 2014-05-07 | 2014-05-07 | Protective housing of electronic device and method for transmitting sound in airtight environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190204.6A CN105101695A (en) | 2014-05-07 | 2014-05-07 | Protective housing of electronic device and method for transmitting sound in airtight environment |
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| Publication Number | Publication Date |
|---|---|
| CN105101695A true CN105101695A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190204.6A Pending CN105101695A (en) | 2014-05-07 | 2014-05-07 | Protective housing of electronic device and method for transmitting sound in airtight environment |
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| CN (1) | CN105101695A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000807A1 (en) * | 2016-06-30 | 2018-01-04 | 刘颂东 | High-sensitivity touch device for use in touch screen of electronic product in underwater environment |
| WO2018053893A1 (en) * | 2016-09-21 | 2018-03-29 | 深圳市志远通泰科技有限公司 | Waterproof mobile phone protection shell |
| CN111258178A (en) * | 2018-12-03 | 2020-06-09 | 信越化学工业株式会社 | Dustproof film assembly and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900748A (en) * | 2005-07-19 | 2007-01-24 | 三星电子株式会社 | Polarizing film assembly, method of manufacturing the same and display device having the same |
| WO2012051358A4 (en) * | 2010-10-12 | 2012-12-06 | Tree Frog Developments, Inc. | Housing for encasing an electronic device |
| CN203225973U (en) * | 2013-04-24 | 2013-10-02 | 众鼎橡胶工业股份有限公司 | Waterproof and dustproof structure for hand-held mobile apparatus |
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2014
- 2014-05-07 CN CN201410190204.6A patent/CN105101695A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900748A (en) * | 2005-07-19 | 2007-01-24 | 三星电子株式会社 | Polarizing film assembly, method of manufacturing the same and display device having the same |
| WO2012051358A4 (en) * | 2010-10-12 | 2012-12-06 | Tree Frog Developments, Inc. | Housing for encasing an electronic device |
| CN203225973U (en) * | 2013-04-24 | 2013-10-02 | 众鼎橡胶工业股份有限公司 | Waterproof and dustproof structure for hand-held mobile apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000807A1 (en) * | 2016-06-30 | 2018-01-04 | 刘颂东 | High-sensitivity touch device for use in touch screen of electronic product in underwater environment |
| WO2018053893A1 (en) * | 2016-09-21 | 2018-03-29 | 深圳市志远通泰科技有限公司 | Waterproof mobile phone protection shell |
| CN111258178A (en) * | 2018-12-03 | 2020-06-09 | 信越化学工业株式会社 | Dustproof film assembly and manufacturing method thereof |
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Application publication date: 20151125 |
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