CN102208297A

CN102208297A - Key panel

Info

Publication number: CN102208297A
Application number: CN2010101340534A
Authority: CN
Inventors: 王大禹; 蔡福源
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-03-29
Filing date: 2010-03-29
Publication date: 2011-10-05
Anticipated expiration: 2030-03-29
Also published as: CN102208297B

Abstract

The invention relates to a key panel, which is arranged on the surface of mobile equipment. The key panel comprises a metal panel layer, and a light guide layer and a keymat layer which are assembled below the metal panel layer; an upper surface and a lower surface opposite to the upper surface are arranged on the metal panel layer; a plurality of through holes penetrating through the upper surface and the lower surface of the metal panel layer are formed on the metal panel layer; the through holes form numbers, signs or patterns for indication; a plurality of blind holes are formed on the metal panel layer besides the part with the through holes; and each blind hole is sunken on the upper surface of the metal panel layer and does not penetrate through the lower surface of the metal panel layer.

Description

Key panel

[technical field]

The invention relates to a kind of key panel, relate in particular to the key panel that is used to import on a kind of electronic installation.

[background technology]

Arrival along with the Information technology epoch, add under the progress of communication network technology, mobile phone has become one of present modal communication tool, and prior mobile phone all begins towards light, thin, short, little volume and makes, and reduces mobile phone in size and weight thus; In the manufacturing of mobile phone, except the volume-diminished of the integrated circuit of inside, the volume that is installed in the key panel on mobile phone surface also will reduce relatively, can reach light, thin, short, little purpose like this.

The key panel great majority of existing mobile phone are the structures that adopts similar U.S. US2007/0205986A1 patent application to be disclosed.The metal key-press panel 10a of this patent application has elastic layer 1a, and the side of elastic layer 1a has a plurality of convex body 11a, and the opposite side 1a of the elastic layer 1a of corresponding convex body 11a disposes a plurality of metal key-press 2a.Have on the metal key-press 2a and the corresponding hollow-out parts 21a of its pattern, insert resin bed 22a at hollow-out parts 21a with light transmission.When metal decking 10a is configured in the pedestal 20a of electronic installation, metal key-press panel 10a is positioned on the circuit module 30a, circuit module 30a has printed circuit board (PCB) 30a, have a plurality of motionless contact point 32a on the circuit board 31a, configuration sheet metal 33a on circuit board 31a, the shell fragment 331a that has a plurality of circular arc spherical surfaces on the sheet metal 33a, shell fragment 331a is corresponding with each contact point 32a, and the opposite side of shell fragment 331a is then corresponding with convex body 11a.When metal key-press 2a is pressed, make convex body 11a be pressed on the surface of shell fragment 331a.Export thereby shell fragment 331a is out of shape and contact the generation signal with contact point 32a.And when lighting background illumination, the light of this background illumination can pass the resin bed 22a of metal key-press 2a, allows the user can clearly see the position of each button.

Though the above-mentioned metal key-press panel 10a that is used to be installed on the little electronic installation of volume has had towards light, thin, short, little making trend, but, on must be on making with metal key-press 2a hollow-out parts 21a one by one insert resin bed 22a after, again metal key-press 2a is sticked to one by one accurately the side of elastic layer 1a.So cause more time-consuming, take a lot of work, be not easy to make.In addition, after metal key-press panel 10a combination, when combining, between peripheral place of this metal key-press 2a and the pedestal 20a slit is arranged with pedestal 20a.This slit makes outside dust hoard easily or causes water to infiltrate, and it is bad to cause button to push feel, perhaps causes short circuit.

Given this, being necessary to design a kind of new key panel solves the problems referred to above in fact.

[summary of the invention]

Main purpose of the present invention provides a kind of simple in structure and can realize the key panel of character concealment effect.

The present invention solves the problems of the technologies described above like this: a kind of key panel, for being disposed on the mobile device surface, this key panel comprises a metal covering flaggy and organizes in the optical waveguide layer and the key mat layer of metal covering flaggy below, the metal covering flaggy is provided with a upper surface and one and the upper surface opposing lower surface, wherein the metal covering flaggy is provided with the through hole of some perforation metal covering flaggy upper and lower surfaces, through hole has been formed the numeral of marked effect, symbol or pattern, the part of metal covering flaggy except that through hole is provided with some blind holes, each blind hole is provided with by the upper surface depression of metal covering flaggy, and does not run through the lower surface of metal covering flaggy.

Compared with prior art, the present invention has the following advantages: simple in structure and do not have an effect that has character to hide under the situation backlight when mobile device.

[description of drawings]

Fig. 1 is the cutaway view of key panel of the present invention;

Fig. 2 is the front view of key panel of the present invention;

Fig. 3 is that mobile phone that key panel of the present invention is installed does not have the front view when backlight;

Fig. 4 is that mobile phone that key panel of the present invention is installed has the front view when backlight.

[embodiment]

Below, will describe in further detail the present invention in conjunction with the accompanying drawings.

See also Fig. 1 to shown in Figure 4, this key panel 100 mainly comprises metal covering flaggy 1, optical waveguide layer 2 and key mat layer 3, and the above each layer is stack successively from top to bottom.

See also illustrated in figures 1 and 2ly, metal covering flaggy 1 is the metallic plate of plate-like structure, and what metallic sheet material can be in aluminium or the stainless steel is any.Metal covering flaggy 1 is provided with a upper surface 10 and one and upper surface 10 opposing lower surface 11.Metal covering flaggy 1 is provided with some blind holes 101 and through hole 102, and described blind hole 101, but is not connected with lower surface 11 to the lower recess certain depth by upper surface 10.And through hole 102 runs through lower surface 11 settings by upper surface 10.Some adjacent through-holes 102 assembled arrangement form figure corresponding to mobile device (indicating) expression numeral, symbol or pattern (for example 1,2,3,4,5,6,7,8,9, *, # etc.).In a kind of preferred implementation, between the through hole 102 and through hole 102 adjacent one another are, between through hole 102 and the blind hole 101 or the spacing distance between blind hole 102 and the blind hole 102 roughly the same, be rectangular arrangement.In this key panel 100, the aperture of blind hole 101 and through hole 102 is set to 0.1mm, and the distance between two adjacent holes is 0.3mm.Need to prove that through hole 102 does not have concrete qualification with the shape of blind hole 101, circular, square and triangle etc. can be as the shape of through hole 102 with blind hole 101.

The blind hole 101 of metal covering flaggy 1 and through hole 102 are formed by the mode of laser ablation.At first utilize the laser ablation device with the laser-transmitting of certain energy surface at metal covering flaggy 1, etch in the evenly distributed some blind holes 101 of the upper surface 10 of metal covering flaggy 1, again by secondarily etched, the blind hole 101 usefulness laser that needs formed numeral, symbol and pattern are got through, and make corresponding blind hole 101 form through holes 102 at last.

For making that metal covering flaggy 1 can be by the laser ablation of certain energy, metal covering flaggy 1 needs to adopt thin aluminium sheet or corrosion resistant plate, and the thickness of the metal covering flaggy 1 in the present embodiment is roughly about 0.15mm.Adopt thin metal covering flaggy 1 can also strengthen user's the feel of pushing, comply with the trend of mobile device slimming simultaneously.

Optical waveguide layer 2 is any one in PC (Merlon) material or PET (PETG) material.Optical waveguide layer 2 has good light conductivity, can conduct the light that the mobile device inner light source is given out, and the through hole 102 that light sees through metal covering flaggy 1 enters in the user visual field.

Key mat layer 3 is by the plastic material ejection formation of high light transmittance, and this plastic material can be TPE (thermoplasticity polyester elastomer), PC (Merlon), ABS (acrylonitrile-butadiene-phenylethylene) or PE (polyethylene) and waits any one.And employing TPE material in the present embodiment.Key mat layer 3 is held on optical waveguide layer 2 between the two with metal covering flaggy 1, and two apparent surfaces of optical waveguide layer 2 are coated with glue and are used for adhesive bond bed course 3 and metal covering flaggy 1 simultaneously.The lower surface of key mat layer 3 (indicate) protrudes and is provided with some pressing bodies 31, each pressing body all with blind hole 101 formed numerals, symbol, the corresponding setting of pattern of metal covering flaggy 1.

Key panel 100 after the assembling from top to bottom mutual superposition has metal covering flaggy 1, optical waveguide layer 2 and key mat layer 3.Go up mobile phones when key panel 100 is assembled, and light-emitting device 4 is when lighting, the user can see light clearly through behind the through hole 102, sees through shown numeral, symbol or the pattern that goes out of key panel 100; When light-emitting device 4 extinguishes, will be the demonstration of blind hole 101 and through hole 102 original colors on the key panel 100, owing to there is not light to penetrate in the through hole 102, key panel 100 can not show numeral, symbol or pattern.

Key panel of the present invention is 100 simple in structure, be easy to make, clear patterns becomes clear, has that dust protection is hoarded and waterproof is infiltrated, and can realize the character concealment effect simultaneously.

Technology contents of the present invention and technical characterstic disclose as above, yet those of ordinary skill in the art still may carry out all replacement and modifications that does not deviate from spirit of the present invention based on teaching of the present invention and announcement.Therefore, protection scope of the present invention should be not limited to the content that execution mode discloses, and comprises various do not deviate from replacement of the present invention and modifications, is the present patent application claim and contains.

Claims

1. key panel, for being disposed on the mobile device surface, this key panel comprises a metal covering flaggy and organizes in the optical waveguide layer and the key mat layer of metal covering flaggy below, the metal covering flaggy is provided with a upper surface and one and the upper surface opposing lower surface, it is characterized in that: the metal covering flaggy is provided with the through hole of some perforation metal covering flaggy upper and lower surfaces, through hole has been formed the numeral of marked effect, symbol or pattern, the part of metal covering flaggy except that through hole is provided with some blind holes, each blind hole is provided with by the upper surface depression of metal covering flaggy, and does not run through the lower surface of metal covering flaggy.

2. key panel as claimed in claim 1 is characterized in that: described through hole and blind hole are the rectangular and equally spaced upper surface that is arranged in the metal covering flaggy.

3. key panel as claimed in claim 2 is characterized in that: the rounded shape of described blind hole and through hole.

4. key panel as claimed in claim 3 is characterized in that: the aperture of blind hole and through hole is set to 0.1mm, and the distance between two adjacent holes is 0.3mm.

5. key panel as claimed in claim 1 is characterized in that: the metal covering flaggy need adopt aluminium sheet or corrosion resistant plate.

6. key panel as claimed in claim 5 is characterized in that: the thickness of described aluminium sheet or corrosion resistant plate is 0.15mm.

7. key panel as claimed in claim 1 is characterized in that: two facing surfaces of optical waveguide layer are coated with glue, respectively bonded metal panel layer and key mat layer.

8. key panel as claimed in claim 1 is characterized in that: described through hole and blind hole are formed by laser ablation.

9. key panel as claimed in claim 8 is characterized in that: described through hole is formed through laser is secondarily etched by blind hole.