CN105792616A - Touch screen assembly and mobile terminal - Google Patents

Touch screen assembly and mobile terminal Download PDF

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Publication number
CN105792616A
CN105792616A CN201610281601.3A CN201610281601A CN105792616A CN 105792616 A CN105792616 A CN 105792616A CN 201610281601 A CN201610281601 A CN 201610281601A CN 105792616 A CN105792616 A CN 105792616A
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CN
China
Prior art keywords
heat
light source
touch screen
panel unit
touch panel
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Granted
Application number
CN201610281601.3A
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Chinese (zh)
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CN105792616B (en
Inventor
吴寿宽
曾武春
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201610281601.3A priority Critical patent/CN105792616B/en
Publication of CN105792616A publication Critical patent/CN105792616A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body

Abstract

The invention discloses a touch screen assembly and a mobile terminal. The touch screen assembly comprises a touch screen and a heat absorption and heat dissipation component. An inner side surface of the touch screen is provided with a display screen. The display screen is provided with a light source. An inner surface of the touch screen comprises a heating area. The heating area comprises a light source area and a peripheral area, wherein the light source area is opposite to the light source and the peripheral area is adjacent to the light source area. The light source area and/or peripheral area are provided with the heat absorption and heat dissipation component. The heat absorption and heat dissipation component comprises a mixed material possessing material attributes of heat absorption, heat storage and heat dissipation functions. The mixed material is formed through mixing a heat absorption and heat storage material and a heat conduction and heat dissipation material. The heat conduction and heat dissipation material is used for transmitting heat on the light source to the heat absorption and heat storage material. The heat absorption and heat storage material is used for absorbing and storing the heat on the light source and simultaneously storing the heat conducted by the heat conduction and heat dissipation material. The mixed material is used to carry out heat absorption, heat storage and heat dissipation on the heat of the light source so that a temperature of the touch screen can be reduced, ear problems of a user are avoided and simultaneously reliability of equipment usage is increased.

Description

A kind of touch panel unit and mobile terminal
Technical field
The present invention relates to electronic device field, particularly relate to a kind of touch panel unit and mobile terminal.
Background technology
The configuration of the mobile terminals such as existing smart mobile phone, panel computer is more and more higher, and the power consumption of its internal electronic component is increasing, and also strain is big mutually for its caloric value.Display screen in mobile terminal, its back light can produce bigger heat, display screen is connected with touch screen, the heat of back light can be delivered on touch screen, and heat is concentrated in receiver hole location, and mobile terminal is in communication process, the top of mobile terminal directly contacts with the ear of user, if caloric value is excessive, it may appear that the problem scalding ear, has a strong impact on user and use.
Summary of the invention
The technical problem to be solved is in that, it is provided that a kind of touch panel unit and mobile terminal, reduces the heat being delivered on touch screen.
In order to solve above-mentioned technical problem, on the one hand, The embodiment provides a kind of touch panel unit, including touch screen and heat radiator part, the medial surface place of described touch screen is provided with display screen, and described display screen is provided with light source, and the inner surface of described touch screen includes hot zone;Described hot zone includes the light source region being oppositely arranged with described light source and the surrounding zone adjacent with described light source region;Described light source region and/or described surrounding zone are provided with described heat radiator part, described heat radiator part includes the composite material with the material properties of heat absorption, heat accumulation and heat storage function, described composite material is by absorbing heat heat accumulating and heat conduction and heat radiation material mixing forms, described heat conduction and heat radiation material for passing to described heat absorption heat accumulating by the heat on described light source, described heat absorption heat accumulating, for absorbing and storing the heat on described light source, stores the heat of described heat conduction and heat radiation conduct simultaneously.
Wherein, described touch screen being provided with and listens bore, the inner surface of described touch screen also includes the viewing area of viewing area, described viewing area and described display screen and is oppositely arranged, and described hot zone is listened between bore and described viewing area described.
Wherein, described surrounding zone in described light source region and described is listened between bore.
Wherein, described surrounding zone and described light source region are bar shaped, and are parallel to each other;Or,
Described surrounding zone forms annular region around described light source region;Or,
Described surrounding zone forms inverted U region around described light source region.
Wherein, described touch screen includes touch screen body and hardware bracket, and described hardware bracket is fixed in touch screen body on the surface of described display screen, and described heat radiator part is arranged on described hardware bracket.
Wherein, the mass ratio of described heat absorption heat accumulating and described heat conduction and heat radiation material is 1:1.
Wherein, described heat absorption heat accumulating includes silicon dioxide and Polyethylene Glycol, and the mass ratio of described silicon dioxide and Polyethylene Glycol is 1:1~1:9.
Wherein, described heat absorption heat accumulating by some with described silicon dioxide be cyst wall, with described Polyethylene Glycol be capsule-core microcapsule constituted.
Wherein, described heat conduction and heat radiation material is graphite or metal.
Wherein, described heat radiator part also includes titanate coupling agent and glue-line, described composite material and described titanate coupling agent are mixed and made into flaky material, and described glue-line stacking is covered on described flaky material, and described flaky material is adhered on described touch screen by described glue-line.
Wherein, described heat radiator part also includes retarder thinner and bonding solution, and described composite material, described retarder thinner and described bonding solution mix and coats on described touch screen.
Wherein, described heat radiator part also includes substrate and glue-line, and described composite material is coated in described substrate, and described glue-line stacking is covered on described composite material, and the substrate being coated with described composite material is adhered on described touch screen by described glue-line.
Wherein, described touch panel unit also includes protecting film, and described protecting film is arranged on described heat radiator part, and described protecting film is located remotely from the side of described touch screen.
Wherein, described protecting film is that heat conduction and heat radiation material is made.
Wherein, described display screen is provided with thermal hole.
On the other hand, the invention provides a kind of mobile terminal, including touch panel unit as the aforementioned.
Touch panel unit provided by the invention and mobile terminal, by arranging heat radiator part in the hot zone of touch screen, heat radiator part includes having heat absorption, the composite material of heat accumulation and heat sinking function, composite material is by absorbing heat heat accumulating and heat conduction and heat radiation material mixing forms, the heat absorption heat accumulating heat for absorbing and store on light source, simultaneously heat conduction and heat radiation material is accelerated heat absorption heat accumulating and to the absorption of the heat of light source and is distributed, utilize composite material that the heat of light source is absorbed heat, heat accumulation and heat radiation, such that it is able to reduce the temperature of touch screen, simultaneously by the effect of heat accumulation and heat radiation, touch screen temperature can be avoided too high, avoid the ear of user causes the harmful effects such as discomfort, improve the reliability that equipment uses simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the decomposing schematic representation of the touch panel unit that first embodiment of the invention provides;
Fig. 2 is the profile of heat radiator part and touch screen in Fig. 1;
Fig. 3 is the structural representation of the heat radiator part of the mobile terminal that second embodiment of the invention provides;
Fig. 4 is the touch screen structural representation with heat radiator part of second embodiment of the invention offer;
Fig. 5 is the touch screen generalized section with heat radiator part of third embodiment of the invention offer;
Fig. 6 is the touch screen generalized section with heat radiator part of fourth embodiment of the invention offer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The mobile terminal that the present embodiments relate to can be any equipment possessing communication and storage function, such as: panel computer, mobile phone, electronic reader, remote controller, personal computer (PersonalComputer, PC), notebook computer, mobile unit, Web TV, wearable device etc. have the smart machine of network function.
Referring to Fig. 1-2, for a kind of mobile terminal that preferred embodiment in the present invention provides, including touch panel unit.Touch panel unit includes touch screen 1 and heat radiator part 2, and the medial surface place of touch screen 1 is provided with display screen 3, and display screen 3 is provided with light source 31, and the inner surface of touch screen 1 includes hot zone 10;Hot zone 10 includes the light source region 11 being oppositely arranged with light source 31 and the surrounding zone 12 adjacent with light source region 11;Light source region 11 and/or surrounding zone 12 are provided with heat radiator part 2, and touch screen 1 is provided with heat radiator part 2, and heat radiator part 2 includes the composite material with the material properties of heat absorption, heat accumulation and heat sinking function.
In this example it is shown that the light source 31 of screen 3 is preferably LED.The light source region 11 of touch screen 1 and surrounding zone 12 are provided with heat radiator part 2.In specific implementation process, heat radiator part 2 is one, is connected on light source region 11 and surrounding zone 12, utilizes a heat radiator part 2 to cover whole hot zone 10, in order to absorption, storing heat are also dispelled the heat.Light source region 11 is the region of just light source 31 to display screen 3, utilizes the heat radiator part 2 on light source region 11 directly to be absorbed by the heat of light source 31.Surrounding zone 12 is disposed adjacent with light source region 11, and the heat near light source 31 can be carried out absorbing, store and spreading by the heat radiator part 2 on surrounding zone 12.Heat radiator part 2 can also absorb the heat being transmitted through in Mobile terminal main board, protects mobile terminal internal components normal operation, improves Consumer's Experience.Herein, in other embodiments, heat radiator part 2 only can also be set in light source region 11, or only heat radiator part 2 is set in surrounding zone 12, it is possible to use the heat absorption that light source 31 produces is avoided heat to be delivered on the outer surface of touch screen 1 by heat radiator part 2.
Being provided with on touch screen 1 and listen bore 19, the inner surface of described touch screen 1 also includes viewing area 13, and the viewing area of described viewing area 13 and described display screen 3 is oppositely arranged, and described hot zone 10 is listened between bore 19 and described viewing area 13 described.The light source 31 of display screen 3 is being listened between bore 19 and viewing area 13, hot zone 10 correspondence is being listened between bore 19 and viewing area 13, heat radiator part 2 is also corresponding to be listened between bore 19 and viewing area 13, thus avoiding heat radiator part 2 to be positioned on viewing area 13 to the display of display screen 3 and formed block, also without heat radiator part 2 is processed into transparence.
Surrounding zone 12 is in light source region 11 and listens between bore 19, when normally using, surrounding zone 12 is positioned at the top place of light source region 11, the heat radiator part 2 arranged on surrounding zone 12 also corresponding can be positioned at the upper area place of light source 31, diffuse up owing to heat is, the upper area of light source 31 is provided with heat radiator part 2 and can better absorb the heat that light source 31 produces.In the present embodiment, surrounding zone 12 and light source region 11 are bar shaped, and are parallel to each other, during normal use, surrounding zone 12 is positioned at the top place of light source region 11, certainly, in other embodiments, surrounding zone 12 can surround light source region 11 and form annular region, or forms inverted U region around light source region 11.
Touch screen 1 includes touch screen body and hardware bracket (not shown), and described hardware bracket is fixed in touch screen body on the surface of described display screen 3, and described heat radiator part 2 is arranged on described hardware bracket.Utilize hardware bracket, it is possible to what facilitate between heat radiator part 2 with touch screen 1 fixing is connected.
Heat radiator part 2 includes the composite material 20 with the material properties of heat absorption, heat accumulation and heat sinking function.Understandable, composite material 20 is mixed to form by heat conduction and heat radiation material 21 and heat absorption heat accumulating 22, described heat conduction and heat radiation material 21 for passing to described heat absorption heat accumulating 22 by the heat on light source, the described heat absorption heat accumulating 22 heat for absorbing and store on light source, stores the heat of heat conduction and heat radiation material 21 conduction simultaneously.
Composite material 20 is the material of the material properties with heat absorption, heat accumulation and heat sinking function.As preferably, the mass ratio of heat absorption heat accumulating 22 and heat conduction and heat radiation material 21 is 1:1.The heat absorption heat accumulating 22 comprised by the composite material 20 in heat radiator part 2 carries out absorbing heat and heat accumulation, heat on light source 31 can be absorbed and is stored in heat absorption heat accumulating 22, to reduce the temperature of light source 31, and heat can be avoided to be directly delivered to touch screen 1 by storing heat;The heat conduction and heat radiation material 21 comprised by the composite material 20 in heat radiator part 2 carries out conducting heat and dispelling the heat, can accelerate the heat absorption heat accumulating 22 heat absorption to light source 31, after heat absorption heat accumulating 22 absorbs the heat of abundance, heat in heat absorption heat accumulating 22 can be dispelled the heat again, further enhance the cooling-down effect to light source 31 and touch screen 1.
Heat absorption heat accumulating 22 is the material of the material properties with heat absorption and heat storage function.Heat absorption heat accumulating 22 is for absorbing the heat of light source 31 and by the heat storage of absorption in heat absorption heat accumulating 22.By light source 31 place at display screen 3, heat radiator part 2 is set, the heat absorption heat accumulating 22 utilizing heat radiator part 2 can distribute to air by heat absorption and after heat accumulation to certain temperature, the heat avoiding light source 31 is directly delivered on touch screen 1, it is to avoid the ear of user is caused the harmful effects such as discomfort.
Understandable, heat absorption heat accumulating 22 can be a kind of phase-change material, it can change physical property and can absorb substantial amounts of heat along with variations in temperature, increase along with the heat absorbed, heat absorption heat accumulating 22 gradates as another kind of phase mutually from one, can stably maintain another kind of phase after absorbing sufficient heat and no longer absorb heat, and the heat absorbed can take away a part of latent heat along with the phase transformation of heat absorption heat accumulating 22, and when light source place not having heat or heat relatively low, heat absorption heat accumulating 22 carries out dispelling the heat and gradually along with reducing of heat is reverted to original phase mutually gradually by another kind.Wherein, heat absorption heat accumulating 22 can along with the change of temperature from solid phase to liquid phase or liquid phase to solid transformation, or solid phase is to gas phase or liquid phase to solid transformation, or liquid phase is to gas phase or gas phase to liquid phase.
Heat radiator part 2 can be arranged at light source region 11 and surrounding zone 12, when the heat that light source 31 sends reaches uniform temperature, the heat of light source 31 is absorbed heat and heat accumulation by the heat absorption heat accumulating 22 in heat radiator part 2, especially light source 31 and neighbouring heat thereof can be absorbed heat and heat accumulation, the heat of light source 31 can be absorbed by heat absorption heat accumulating 22, and by heat storage at self, utilize heat conduction and heat radiation material 21 can accelerate heat transmission, after the temperature of light source 31 lowers, the heat of storage is dispersed in air, thus reducing the heat of light source 31, avoid heat to be delivered on the outer surface of touch screen 1 simultaneously, improve the reliability of display screen 3.
Heat absorption heat accumulating 22 preferably comprises the silicon dioxide and Polyethylene Glycol that mass ratio is 1:1~1:9.Inventor is drawn by substantial amounts of experiment, by silicon dioxide and Polyethylene Glycol with mass ratio for 1:1~1:9 mixing can prepare organic-composite phase-change material has suitable phase transition temperature, the heat of light source 31 can be absorbed in time, improve the reliability of light source 31 and mobile terminal further.Concrete, the phase transition temperature that the mixing of this heat absorption heat accumulating 22 prepares is 40 degree, and after the temperature of the heat namely produced at light source 31 reaches 40 degree, heat absorption heat accumulating 22 carries out decalescence, is taken away by the heat of light source 31, so that light source 31 to be lowered the temperature.Certainly, in other embodiments, heat absorption heat accumulating 22 can also be inorganic phase-changing material, or composite phase-change material etc..
Preferably, heat absorption heat accumulating 22 by some with silicon dioxide be cyst wall, with Polyethylene Glycol be capsule-core microcapsule constituted.Light source 31 preferably can be carried out heat absorption heat accumulation by the heat absorption heat accumulating 22 of this microcapsule structure, and then reaches preferably heat dispersion.Concrete, Polyethylene Glycol is joined in certain density Ludox, after all dissolving, drip CaCl2Accelerator solution, under strong stirring so that sol gel reaction occurs Polyethylene Glycol in Ludox, forms three-dimensional net structure gel after standing;By gel forced air drying 24~48h in 80 DEG C of baking ovens, be cooled to room temperature, can access with organo-siloxane compound produce in the basic conditions a large amount of with silica dioxide gel be cyst wall, the microcapsule that is capsule-core with the Polyethylene Glycol after emulsifying.Namely in each microcapsule, silicon dioxide wraps the Polyethylene Glycol as capsule-core as cyst wall so that Polyethylene Glycol will not leak from the process of solid-liquid, it is possible to is well lived by Silica-coated.The heat absorption heat accumulating 22 of this formation microcapsule structure is after the temperature of light source 31 reaches 40 degree, start to absorb the heat on light source 31, and capsule-core itself is gradually increased gradually from solid-liquid along with heat, after capsule-core is converted to liquid phase, the heat that heat absorption heat accumulating 22 absorbs is saturated, it stops absorbing heat, and after the temperature outside light source 31 is gradually decrease to preset temperature, the heat of absorption is come out by capsule-core, it is delivered in air, and capsule-core can be converted to solid phase from liquid phase gradually along with gradually decreasing of its fever of the body amount, changed by the circulation of above-mentioned solid phase to liquid phase, thus light source 31 is lowered the temperature, improve heat dispersion and the reliability of mobile terminal.Certainly, in other embodiments, heat absorption heat accumulating 22 can also be other structure so that heat absorption heat accumulating 22 can by lowering the temperature from the circulation conversion being solid to gas phase to light source 31.
Heat conduction and heat radiation material 21 can be the heat dispersion such as graphite or metal preferably material.Wherein, heat conduction and heat radiation material 21 is preferably graphite, and its quality is softer to be easily worked.The manufacturing process of composite material 20 is particularly as follows: smash to pieces heat absorption heat accumulating 22 and strong stirring obtains powder, owing to the diameter of powder body is far longer than the diameter of each microcapsule, thus without the microcapsule structure destroyed in heat absorption heat accumulating 22, namely without influence on the heat absorption heat storage function of heat absorption heat accumulating 22;Powdered heat conduction and heat radiation material 21 will be smashed again to pieces and be mixed to form composite material 20 with pulverous heat absorption heat accumulating 22, so that composite material 20 has the function of heat absorption, heat accumulation and heat radiation.
As shown in Figure 2, in order to further improve, heat radiator part 2 also includes titanate coupling agent 23 and glue-line 24, composite material 20 and titanate coupling agent 23 and is mixed and made into flaky material 25, glue-line 24 stacking is covered on flaky material 25, and flaky material 25 is adhered on touch screen 1 by glue-line 24.In the present embodiment, by flaky material 25 being arranged on the hot zone 10 of touch screen 1, the heat that light source 31 produces can be absorbed by heat absorption heat accumulating 22 and store, thus being not transferred on the outer surface of touch screen 1, thus avoiding the ear to user, face to impact.
By composite material 20 and titanate coupling agent 23 are mixed and made into flaky material 25, it is connected on flaky material 25 again through glue-line 24 stacking and forms heat radiator part 2, make heat radiator part 2 can go to cut according to the shape of light source region 11 and surrounding zone 12, and then can have with light source 31 and preferably coordinate, preferably light source 31 can be carried out heat absorption heat accumulation, further light source 31 is lowered the temperature, improve heat dispersion and the reliability of mobile terminal, and the heat radiator part 2 of lamellar is applied more convenient, is directly stained with.It is also provided with heat-barrier material, to avoid heat to be delivered on touch screen 1 further between heat radiator part 2 and touch screen 1.
In the present embodiment, heat absorption heat accumulating 22 is smashed to pieces and strong stirring obtains powder, owing to the diameter of powder body is far longer than the diameter of each microcapsule, thus without the microcapsule structure destroyed in heat absorption heat accumulating 22, namely without influence on the heat absorption heat storage function of heat absorption heat accumulating 22.It is pulverous heat absorption heat accumulating 22 and is mixed to get composite material 20 with heat conduction and heat radiation material 21, composite material 20 adds titanate coupling agent 23 hydrophobically modified and obtains inorganic plan organic composite shaping phase-change material, this inorganic plan organic composite shaping phase-change material prepares flake and flaky material 25 again through tabletting machine, and flaky material 25 stacking again connects upper glue layer 24 and forms heat radiator part 2.It should be understood that glue-line 24 can be gum, double faced adhesive tape or mould release membrance etc..Heat radiator part 2 can be cut into definite shape according to the shape in region corresponding to light source 31 and near zone thereof, is fitted on touch screen 1, thus realizing the function of heat absorption, heat accumulation and heat radiation.
In order to further improve, mobile terminal also includes protecting film 26, and protecting film 26 is arranged on heat radiator part 2, and protecting film 26 is arranged on heat radiator part 2, and protecting film 26 is located remotely from the side of touch screen 1.By arranging protecting film 26 on heat radiator part 2, so that heat radiator part 2 to be protected further, improve the reliability of touch screen 1 further.
In the present embodiment, protecting film 26 is polyethylene terephthalate (PET), and its stacking is connected on flaky material 25, and opposing with glue-line 24, and flaky material 25 can be shaped and have dust-proof effect by protecting film 26 further.Certainly, in other embodiments, the material of protecting film 26 can also be other, such as silica gel, graphite etc..
Display screen 2 is offered thermal hole (not shown).Thermal hole can be processed to form by the mode of cut, so that thermal hole can reach the sightless effect of naked eyes, thus not affecting display screen 2 outward appearance.Thermal hole can be arranged in corresponding position, hot zone, it is also possible to arrange around hot zone, the heat of light source is better conducted heat, and improves the heat dispersion of mobile terminal further.
As shown in Figure 3, Figure 4, a kind of mobile terminal that the second embodiment of the present invention provides, roughly the same with the basic structure of the mobile terminal that first embodiment of the invention provides, the structure of touch screen 1 and display screen 3 is all identical with first embodiment, and it is different in that the structure of heat radiator part 2.Heat radiator part 2 in the present embodiment includes composite material, retarder thinner and bonding solution, composite material, retarder thinner and bonding solution are mixed to form heat radiator part 2 light source region 11 coating on touch screen 1 and surrounding zone 12, to avoid heat to spread to the front surface of touch screen 1.
By retarder thinner, bonding solution are mixed to form heat radiator part 2 with composite material, heat radiator part 2 is made directly to have adhesive force, can coat without still further increasing glue-line on the surface of touch screen 1, thus providing one to use advantageously heat radiator part 2.
In the present embodiment, heat absorption heat accumulating is smashed to pieces and strong stirring obtains powder, owing to the diameter of powder body is far longer than the diameter of each microcapsule, thus without the microcapsule structure destroyed in heat absorption heat accumulating, namely without influence on the heat absorption heat storage function of heat absorption heat accumulating 22.Heat conduction and heat radiation material is also processed into Powdered, and it is mixed to get composite material with heat absorption heat accumulating, pulverous composite material is added to retarder thinner and adds the mixing of special binder solution (such as: methanol dimethylbenzene, acrylic resin etc.), heat radiator part 2 is made to have adhesive force, directly adopt the form of coating to be piled into certain thickness heat radiator part 2 to be attached on hot zone, thus realizing the function of heat absorption, heat accumulation and heat radiation.
In the present embodiment, heat radiator part 2 directly adopts the form of coating be piled into certain thickness and is attached on light source region 11 and the surrounding zone 12 of touch screen 1, thus improving the heat absorption thermal storage performance of heat radiator part 2, fully absorb the heat of light source, avoid heat to be delivered on the outer surface of touch screen 1 simultaneously.Can also arranging protecting film away from the surface of described touch screen 1 on heat radiator part 2, the structure of protecting film is identical with previous embodiment, repeats no more herein.
In the present embodiment, heat radiator part 2 is coated on light source region 11 and the surrounding zone 12 of touch screen, and herein, in other embodiments, heat radiator part 2 can also only be coated on light source region 11, or is provided only on surrounding zone 12.Heat radiator part 2 can be two, is respectively coated in light source region 11 and surrounding zone 12, or heat radiator part 2 is one, covers overall to light source region 11 and surrounding zone 12.
As shown in Figure 5, the third embodiment of the present invention is provided a kind of mobile terminal, roughly the same with the basic structure of the mobile terminal that first embodiment of the invention provides, the structure of touch screen 1 and display screen 3 is all identical with first embodiment, and it is different in that the structure of heat radiator part 2.The heat radiator part 2 of the mobile terminal in the present embodiment includes composite material 20, substrate 230 and glue-line 240, composite material 20 is coated in substrate 230, composite material 20 can be coated on the double-sided surface of substrate 230, it is possible to only coats in the single side surface of substrate 230.Glue-line 240 stacking is connected on heat absorption heat accumulating 22, and glue-line 240 is adhered on light source region 11 and the surrounding zone 12 of touch screen 1.
By directly composite material 20 being coated molding in substrate 230, then glue-line 240 is set on composite material 20 to be pasted on touch screen 1, it is not necessary to tablet machine carries out tabletting, makes relatively simple.
In the present embodiment; substrate 230 is polyethylene terephthalate (PET); pulverous heat absorption heat accumulating 22 will be and heat conduction and heat radiation material 21 will be mixed to form composite material 20; composite material 20 is coated directly onto molding in the single side surface of substrate 230; the substrate with composite material 20 is adhered on touch screen 1 by glue-line 240; realize the heat absorption of heat radiator part 2, heat accumulation and heat sinking function; substrate 230 simultaneously can also form protecting film, so that composite material 20 to be played a protective role.Certainly, in other embodiments, composite material can be coated on the double-sided surface of substrate 230, then arranges protecting film on the composite material of side wherein again, and glue-line 240 is arranged on the composite material of opposite side.It should be understood that glue-line 240 can be gum, double faced adhesive tape or other etc..
In the present embodiment, heat radiator part 2 is arranged on light source region 11 and surrounding zone 12, and herein, in other embodiments, heat radiator part 2 can also be provided only on light source region 11, or is provided only on surrounding zone 12.Heat radiator part 2 can be two, is separately positioned on light source region 11 and surrounding zone 12, or heat radiator part 2 is one, covers overall to light source region 11 and surrounding zone 12.
As shown in Figure 6, the fourth embodiment of the present invention is provided a kind of mobile terminal, and the structure of touch screen 1 and display screen 3 is all identical with first embodiment, and the structure of heat radiator part can be identical with aforementioned any embodiment.In the present embodiment, touch panel unit also includes protecting film 26, and protecting film 26 is arranged on described heat radiator part, and described protecting film 26 is located remotely from the side of described touch screen.Protecting film 26 can be made for the heat conduction and heat radiation material such as graphite or metal; its material can be identical with the heat conduction and heat radiation material in composite material; utilize the protecting film 26 that heat conduction and heat radiation material is made; it is possible not only to heat radiator part is shaped and there is dust-proof effect, it is possible to strengthen the heat-sinking capability of heat radiator part.
In the aforementioned embodiment, heat radiator part is directly connected with touch screen, in other embodiments, heat can also be avoided to be transferred on touch screen by arranging heat-barrier material between radiating piece and touch screen.The embodiment of the present invention is by being arranged in mobile terminal by heat radiator part position corresponding with light source on touch screen and near zone place thereof, can absorb and store the heat at light source position place, reduce the heat being transferred to touch screen, thus the problem avoiding producing to scald ear, avoid the ear of user causes the harmful effects such as discomfort, improve the reliability that equipment uses simultaneously.
In the aforementioned embodiment, the mass ratio of heat absorption heat accumulating and heat conduction and heat radiation material is 1:1, certainly, in other embodiments, can adjust the mass ratio of heat absorption heat accumulating and heat conduction and heat radiation material as required.
Touch panel unit provided by the invention and mobile terminal are by arranging heat radiator part on the touchscreen, heat radiator part includes having heat absorption, the composite material of heat accumulation and heat sinking function, composite material is by absorbing heat heat accumulating and heat conduction and heat radiation material mixing forms, heat absorption heat accumulating is for absorbing and storing the heat on display screen light source, simultaneously heat conduction and heat radiation material is accelerated heat absorption heat accumulating and to the absorption of the heat on light source and is distributed, utilize composite material that the heat on light source is absorbed heat, heat accumulation and heat radiation, such that it is able to reduce the temperature of housing, properly functioning to ensure the mobile terminal with this touch panel unit, simultaneously by the effect of heat accumulation and heat radiation, the temperature that can avoid touch screen is too high.Heat radiator part can also absorb the heat being transmitted through in Mobile terminal main board, protects mobile terminal internal components normal operation, improves Consumer's Experience.
Mobile terminal provided by the invention has suitable phase transition temperature also by by the organic phase change material that silicon dioxide and Polyethylene Glycol can prepare with mass ratio for 1:1~1:9 mixing, the heat of light source can be absorbed in time, improve the reliability of mobile terminal further.
Mobile terminal provided by the invention makes microcapsule structure also by by heat absorption heat accumulating, it is possible to light source preferably carries out heat absorption heat accumulation, and then reaches preferably heat dispersion.
Mobile terminal provided by the invention, also by heat conduction and heat radiation material is defined to graphite material, optimizes the processing of heat conduction and heat radiation material.
Embodiment above, is not intended that the restriction to this technical scheme protection domain.The amendment made within any spirit at above-mentioned embodiment and principle, equivalent replacement and improvement etc., should be included within the protection domain of this technical scheme.

Claims (16)

1. a touch panel unit, it is characterised in that include touch screen and heat radiator part, the medial surface place of described touch screen is provided with display screen, and described display screen is provided with light source, and the inner surface of described touch screen includes hot zone;Described hot zone includes the light source region being oppositely arranged with described light source and the surrounding zone adjacent with described light source region;Described light source region and/or described surrounding zone are provided with described heat radiator part, described heat radiator part includes the composite material with the material properties of heat absorption, heat accumulation and heat storage function, described composite material is by absorbing heat heat accumulating and heat conduction and heat radiation material mixing forms, described heat conduction and heat radiation material for passing to described heat absorption heat accumulating by the heat on described light source, described heat absorption heat accumulating, for absorbing and storing the heat on described light source, stores the heat of described heat conduction and heat radiation conduct simultaneously.
2. touch panel unit according to claim 1, it is characterized in that, described touch screen is provided with and listens bore, the inner surface of described touch screen also includes viewing area, the viewing area of described viewing area and described display screen is oppositely arranged, and described hot zone is listened between bore and described viewing area described.
3. touch panel unit according to claim 2, it is characterised in that described surrounding zone is in described light source region and described listens between bore.
4. touch panel unit according to claim 1, it is characterised in that described surrounding zone and described light source region are bar shaped, and are parallel to each other;Or,
Described surrounding zone forms annular region around described light source region;Or,
Described surrounding zone forms inverted U region around described light source region.
5. touch panel unit according to claim 1, it is characterized in that, described touch screen includes touch screen body and hardware bracket, and described hardware bracket is fixed in touch screen body on the surface of described display screen, and described heat radiator part is arranged on described hardware bracket.
6. the touch panel unit according to claim 1 any one, it is characterised in that the mass ratio of described heat absorption heat accumulating and described heat conduction and heat radiation material is 1:1.
7. touch panel unit according to claim 1, it is characterised in that described heat absorption heat accumulating includes silicon dioxide and Polyethylene Glycol, the mass ratio of described silicon dioxide and Polyethylene Glycol is 1:1~1:9.
8. touch panel unit according to claim 7, it is characterised in that described heat absorption heat accumulating by some with described silicon dioxide be cyst wall, with described Polyethylene Glycol be capsule-core microcapsule constituted.
9. touch panel unit according to claim 8, it is characterised in that described heat conduction and heat radiation material is graphite or metal.
10. touch panel unit according to claim 8 or claim 9, it is characterized in that, described heat radiator part also includes titanate coupling agent and glue-line, described composite material and described titanate coupling agent are mixed and made into flaky material, described glue-line stacking is covered on described flaky material, and described flaky material is adhered on described touch screen by described glue-line.
11. touch panel unit according to claim 8 or claim 9, it is characterised in that described heat radiator part also includes retarder thinner and bonding solution, and described composite material, described retarder thinner and described bonding solution mix and coats on described touch screen.
12. touch panel unit according to claim 8 or claim 9, it is characterized in that, described heat radiator part also includes substrate and glue-line, described composite material is coated in described substrate, described glue-line stacking is covered on described composite material, and the substrate being coated with described composite material is adhered on described touch screen by described glue-line.
13. touch panel unit according to claim 8 or claim 9, it is characterised in that described touch panel unit also includes protecting film, described protecting film is arranged on described heat radiator part, and described protecting film is located remotely from the side of described touch screen.
14. touch panel unit according to claim 8 or claim 9, it is characterised in that described protecting film is that heat conduction and heat radiation material is made.
15. touch panel unit according to claim 1, it is characterised in that be provided with thermal hole on described display screen.
16. a mobile terminal, it is characterised in that include the touch panel unit as described in claim 1~15 any one.
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