A kind of electronic productTechnical field
The present invention relates to optical touch device technical field, is the electronic product that a kind of employing OFN (photoelectricity finger navigation) module does not have the direct built-in scheme of COVER (shade) specifically.
Background technology
Mobile phone screen now is increasing, and almost the size with whole mobile phone is suitable.For the large-screen of matching with mobile phone, cut down the space of physical button relatively, generally only stay the below of the position of 3~5 buttons, even can remaining function button all be concentrated in the middle of the OFN module in mobile phone, one is not stayed.
So-called OFN module (Optical Finger Navigation Module; Photoelectricity finger navigation module; Following abbreviation OFN) be common annex in the current electronic product, its operation principle is: the LED (Light-Emitting Diode) through being installed in around the induction zone sends infrared ray (870nm) irradiation finger; The part infrared ray is reflected, and gets back to induction zone through shade and lens; Induction zone is quantized into data according to the infrared ray that these reflect, and calculates direction and speed that finger moves, exports with the form of relative coordinate then.
As shown in Figure 1, the touch-control mobile phone has five buttons and is arranged on the screen below, and wherein the centre position is four-way photoelectricity finger navigation (OFN) button; These buttons all expose the outside at the mobile phone control panel.Shown in Fig. 2, Fig. 3 exploded view, the mobile phone housing need be reserved mouthful and to install for whole OFN module, and the OFN module carries shade (COVER) and after installation, will protrude hand set machine shell, and its end face can be worn easily, causes not attractive in appearance.In addition, along with electronic products such as multimedia are more and more ripe, more and more polynary change, various outward appearances all might occur, and in these electronic products, also all have similar problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of electronic product, can solve the inaesthetic problem that prior art causes because of button protrusion surface abrasion.
For solving above technical problem, technical scheme of the present invention is: a kind of electronic product, comprise OFN, and OFN is built in the casing of electronic product, wherein: OFN is the module of no shade; Casing is processed by the infrared-filtered material.
More excellent ground, the transducer of OFN and lens lift-launch are on the mainboard of electronic product, and in the OFN screens on casing, reserved of overall fixed.
More excellent ground, the transducer of OFN and lens carry on the mainboard of electronic product, and are fixed in the OFN screens of reserving on the casing through glue or bayonet socket.
More excellent ground, the transducer of OFN fits on the mainboard of electronic product, and directly covers with casing.
More excellent ground, the transducer of OFN is welded on the mainboard of electronic product, and directly covers with casing.
More excellent ground, the mainboard of electronic product is FPC or PCB.
More excellent ground comprises plurality of keys, is built in the casing.
More excellent ground, the position silk-screen of button is on casing.
More excellent ground, button utilizes the LED leaded light to carry out prompting operation.
More excellent ground is after OFN and button are built in the guidance panel of casing.
More excellent ground, casing is provided with wear-resistant paint corresponding to the zone of OFN.
More excellent ground, wear-resistant paint is a UV coating.
Compared with prior art, the button of electronic product of the present invention and OFN can make the integral body of electronic product become smooth same after all being built in the machine shell panel of electronic products such as mobile phone thus.Unnecessary concavo-convexly can not make electronic product more attractive in appearance because of having, finally just solve the not aesthetic problem that causes because of button protrusion surface abrasion from root in the casing surface.
Description of drawings
Fig. 1 is the key arrangement sketch map of existing touch-control mobile phone;
Fig. 2 is the side-looking decomposing schematic representation of Fig. 1;
Fig. 3 is the partial exploded view of Fig. 2;
Fig. 4 does not have the mobile phone front schematic view of the built-in scheme of COVER for the present invention adopts the OFN module;
Fig. 5 is the front perspective view of mobile phone shown in Figure 4;
Fig. 6 is the schematic rear view of mobile phone shown in Figure 4;
Fig. 7 is the partial schematic diagram after the mobile phone partition shown in Figure 4;
Fig. 8 is the assembling sketch map of mobile phone shown in Figure 4.
Embodiment
Be without loss of generality, present embodiment is example with the mobile phone, and the technical scheme built-in to OFN describes.This scheme provides a kind of solution for no button exposes design, not only makes mobile phone faceplate more tend to smooth same, also favourable with reduce mobile phone thickness, lower the cost of OFN module and even mobile phone integral body.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 4~Fig. 8, expression adopts the OFN module not have a preferred embodiment of the built-in scheme mobile phone of COVER simultaneously, and it can solve because of button protrusion surface abrasion causes inaesthetic problem from root through OFN is built-in, further describes below.
Find out from Fig. 4~Fig. 7 diagram, after button and OFN are built in the guidance panel of hand set machine shell, make the integral body of mobile phone become smooth same; Because of do not have more than concavo-convex and mobile phone surface, but the time mobile phone more attractive in appearance.
In the present embodiment, OFN is the module of no shade; Case material requires to the infrared-filtered type material, like PC Lexan 121R 21051, to guarantee printing opacity; And the corresponding zone of OFN module also needs extra Ultra Violet Coating (UV coating is a kind of wear-resistant paint that hardens with UV-irradiation), in order to increase the surperficial resistance to wear of electronic product such as mobile phone; The position of button can be imprinted on the casing with silk-screen, also can utilize the LED leaded light to carry out operation indicating.
Assembling sketch map as shown in Figure 8; Can be earlier on the technology sensor (transducer) 3 and the lens (lens) 4 of OFN be carried at FPC (Flex Print Circuit Board; FPC, abbreviation FPC)/PCB (printed circuit board (PCB)) 2 on, wholely then be fixed on OFN screens 5 the insides that hand set machine shell 6 reserves with glue or bayonet socket and (or directly sensor fitted on the mainboard of electronic products such as mobile phone/multimedia; Casing directly gets final product its covering), finally accomplish the installation of whole OFN module.And; Perfect day by day along with the OFN product function; Can replace other photoelectricity/pressure-sensitive/hold the command function of sense button through different gesture commands, that is to say remaining button all concentrated on above the OFN and (promptly omit other button), thereby reduce the quantity of button.
The built-in scheme of this kind OFN that the embodiment of the invention proposes does not need COVER; The various expenses of COVER have not only effectively been removed; And favourable and save mobile phone/electronic product enclosure volume inside, reduce the thickness of electronic product such as whole mobile phone, meet current light and thin trend.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.