A kind of capacitive touch screen navigating instrument
Technical field
The utility model relates to a kind of navigating instrument, particularly a kind of capacitive touch screen navigating instrument.
Background technology
Navigating instrument, the product of modern science and technology, be used on automobile, for location, navigation and amusement, along with the universal of automobile and the construction of road, the economic interaction of intercity is more frequent, and vehicle-mounted GPS navigator seems very important, the navigation that accurate location, navigation, amusement function roll into one more can meet the demand of car owner, becomes the basic equipment on car.
Along with the development of science and technology, the navigating instrument used at present mostly is touch screen navigation instrument.Touch-screen is a kind of induction type liquid crystal indicator receiving the input signals such as contact, when contacting the graphic button on screen, haptic feedback system on screen can drive various hookup mechanism according to the formula of programming in advance, in order to replace mechanical push button panel, and lively visual and sound effects can be produced by liquid crystal display picture.Touch-screen is as a kind of up-to-date computer input apparatus, and it is the simplest, convenient current, natural a kind of man-machine interaction mode.And mostly being the navigating instrument of electric resistance touch screen on the market at present, electric resistance touch screen has insufficient sensitivity, and touch-control easily occurs deviation.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of capacitive touch screen navigating instrument, and this navigating instrument adopts capacitive touch screen, has highly sensitive feature.
The utility model is realized by following proposal: a kind of capacitive touch screen navigating instrument, it mainly comprises shell and display panel, described display panel is connected with described shell by contiguous block, described display panel is made up of touch modules and LCDs, described touch modules is connected by air layer with LCDs, and described touch modules is on described LCDs, described touch modules is antireflection film from top to bottom successively, polycarbonate cover, upper ITO coating, glass substrate, lower ITO coating, film-substrate, described antireflection film is pasted on described polycarbonate cover, described polycarbonate cover is connected to described upper ITO coating by upper pressure-sensitive adhesive layer, described upper ITO coating is connected to described glass substrate, described glass substrate is connected to described lower ITO coating by lower pressure-sensitive adhesive layer, described lower ITO coating is connected to described film-substrate, described film-substrate is connected to described LCDs by described air layer, described LCDs has touch screen controller, the surrounding of described LCDs is equipped with metal wire, described metal wire connects described LCDs and described touch screen controller.
The side of described shell is provided with USB interface, and described USB interface is other is provided with Micro-USB interface.
Described display panel has power supply entity button.
Described display panel is recessed in described shell.
The thickness of described upper ITO coating and lower ITO coating is all less than 100 nanometers.
The thickness of described upper pressure sensitive adhesive and lower pressure-sensitive adhesive layer is 25 microns to 200 microns.
Described glass substrate is the glass of 100 microns to 1 millimeter.
Described film-substrate is the film of 25 microns to 100 microns.
The beneficial effects of the utility model are:
1, a kind of capacitive touch screen navigating instrument of the utility model is provided with ITO coating and lower ITO coating, and touch can be converted into electric signal by ITO coating, is feeding back to touch screen controller by metal wire, highly sensitive;
2, a kind of capacitive touch screen navigating instrument of the utility model is provided with polycarbonate cover, and polycarbonate has the feature of high transmission rate, high index of refraction, impact, effectively can reduce light loss, and protection panel, improves the serviceable life of navigating instrument;
3, be provided with air layer between the touch modules of a kind of capacitive touch screen navigating instrument of the utility model and LCDs, the stray capacitance from LCDs can be reduced;
4, a kind of capacitive touch screen navigating instrument of the utility model is provided with USB interface and Micro-USB interface, is convenient to two kinds of conventional data lines and is connected with navigating instrument.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the display panel of a kind of capacitive touch screen navigating instrument of the utility model;
Fig. 2 is the cross-sectional view of a kind of capacitive touch screen navigating instrument of the utility model;
Fig. 3 is the one-piece construction schematic diagram of a kind of capacitive touch screen navigating instrument of the utility model;
In figure: 1 is shell, 2 is display panel, and 3 is contiguous block, and 4 is touch modules; 5 is LCDs, and 6 is air layer, and 7 is antireflection film; 8 is polycarbonate cover, and 9 is upper ITO coating, and 10 is glass substrate; 11 is lower ITO coating, and 12 is film-substrate, and 13 is upper pressure-sensitive adhesive layer; 14 is lower pressure-sensitive adhesive layer, and 15 is touch screen controller, and 16 is metal wire; 17 is USB interface, and 18 is Micro-USB interface, and 19 is power supply entity button.Wherein:
ITO is nano indium tin metal oxide, and ITO coating is the layer of nano indium tin metal oxide.
Micro-USB is a portable version of USB 2.0 standard, it is the specification of future generation of Mini-USB, also micro USB (miniature USB (universal serial bus)) is claimed, by the U.S. of USB standardization body USBImplementers Forum(USB-IF) formulate on January 4th, 2007, the Mini USB interface used than part mobile phone is less, unique distinction is that they contain stainless steel casing, ten thousand plugs are not a problem, namely, when there is no main frame (such as PC), directly can realize data between portable equipment and passing.Namely above-mentioned Micro-USB interface is the interface structure taking above-mentioned technology.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
According to Fig. 1, shown in Fig. 2 and Fig. 3, capacitive touch screen navigating instrument described in the utility model, it mainly comprises shell 1 and display panel 2, display panel 2 is connected with shell 1 by contiguous block 3, display panel 2 is made up of touch modules 4 and LCDs 5, touch modules 4 is connected by air layer 6 with LCDs 5, air layer reduces the stray capacitance from LCDs, and touch modules 4 is on LCDs 5, touch modules 4 is antireflection film 7 from top to bottom successively, polycarbonate cover 8, upper ITO coating 9, glass substrate 10, lower ITO coating 11, film-substrate 12, antireflection film 7 is pasted on polycarbonate cover 8, polycarbonate has high transmission rate, high index of refraction, the feature of impact, effectively can reduce light loss, protection panel, polycarbonate cover 8 is connected to upper ITO coating 9 by upper pressure-sensitive adhesive layer 13, the thickness of upper ITO coating 9 is less than 100 nanometers, the thickness of pressure-sensitive adhesive layer is 25 microns to 200 microns, specific inductive capacity is low, upper ITO coating 9 is connected to glass substrate 10, glass substrate 10 is the glass of 100 microns to 1 millimeter, its good in optical property, glass substrate 10 is connected to lower ITO coating 11 by lower pressure-sensitive adhesive layer 14, the thickness of lower ITO coating 11 is less than 100 nanometers, lower ITO coating 11 is connected to film-substrate 12, film-substrate 12 is the film of 25 microns to 100 microns, touch is converted into electric signal by upper ITO coating 9 and lower ITO coating 11, film-substrate 12 is connected to LCDs 5 by air layer 6, LCDs 5 has touch screen controller 15, the surrounding of LCDs 5 is equipped with metal wire 16, metal wire 16 connecting fluid crystal display screen 5 and touch screen controller 15, touch signal is fed back to touch screen controller 15 by metal wire 16, instruction is sent by touch screen controller 15, the side of shell 1 is provided with usb 17, usb 17 is other is provided with Micro-USB interface 18, be convenient to two kinds of conventional data lines be connected with navigating instrument, display panel 2 has power supply entity button 19, display panel 2 is recessed in shell 1.
Although done comparatively detailed elaboration to the technical solution of the utility model and enumerated; be to be understood that; to those skilled in the art; amendment is made to above-described embodiment or adopts equivalent replacement scheme; this is apparent to those skilled in the art; these modifications or improvements on the basis of not departing from the utility model spirit, all belong to the scope that the utility model is claimed.