CN1917111A - A key sheet and its manufacturing method - Google Patents

Figure 1A is the vertical view of a known mobile phone, and Figure 1B is the profile of the mobile phone of Figure 1A along hatching A-A '.Please be simultaneously with reference to Figure 1A and Figure 1B,

100 has a

110, a

120, a

130, a

140 and an antenna 150.Wherein,

110,

130 edges are located on the

140, and

120 is disposed at the following of

110 and is wrapped in it by

140, and 150 on antenna links to each other with

140.

110 has a

112, a plurality of

116 and a

118, and a plurality of

116a are arranged on the

116, and

118 is disposed at the

114b of

112, and on this

118 a plurality of

118a is arranged.

110 is disposed on the

120, and

120 comprises a

122, a plurality of light-

124, a plurality of

126 and a plurality of fixed contact 128.Light-

124 is disposed on the

122, and the light source of the

116a of

116 can be provided.The light that light-

124 is sent has a preferable range of

124a, in this preferable range of

124a, light intensity more by force and more even, outside this preferable range of

124a, light intensity is more weak and more inhomogeneous.With the light-

124 on Figure 1B left side is example, among a plurality of

116a that illustrate among Figure 1B, there are two

116a to be positioned at the preferable range of

124a of this light-

124, have a

116a to be positioned at outside the preferable range of

124a of this light-emitting diode 124.Be positioned at light that two

116a of preferable range of

124a are appeared more by force and more even; It is more weak and more inhomogeneous to be positioned at the light that the outer

116a of preferable range of

124a appeared.Because part

116a is positioned at outside the preferable range of

124a, brightness is weak, more uneven phenomenon so the being seen part printing opacity of

116a can occur, and its definition can become not good.Hold above-mentionedly, after the effect of the preferable range of

124a of comprehensive all light-

124, the definition of the many

116a on

110 can become not good.

In addition, if

100 is more compact, this can make narrower and small that the inner space of mobile phone becomes, and then have influence on the preferable range of

124a of light-

124, more

116a is dropped on outside the preferable range of

124a of light-

124, thus the definition of font or pattern can become poorer.

Please earlier with reference to Fig. 2 and Fig. 3 A, the fabricating pieces of key of present embodiment is that a pattern metal

210 is provided earlier.The manufacture method of this pattern metal

210 for example is that a complete uncut sheet metal (not illustrating) is provided earlier, then it is carried out etching or cutting, makes the sheet metal patterning and forms pattern metal thin slice 210.Pattern metal

210 has positive 212 and one

214, and comprises the push-

216 of the independent start of a plurality of energy, and has a plurality of pierced

216a on these push-button units 216.Particularly, each push-

216 is supreme has a pierced

216a less.

Please refer to Fig. 3 B, then, reinforced

220 is adhered in configuration one on the

214 of pattern metal thin slice 210.This material that adheres to reinforced

220 for example comprises thermoplastic matrix's amine polyformate, thermoplastic elastomer, thermoplastic resin or other suitable materials.

Please refer to Fig. 3 C, then, form a

230 on the reinforced

220 in adhering to.The method that forms this

230 for example comprises printing, bat printing, spraying or other proper methods.In addition,

230 is not limited to single color or simple layer, can optionally use multicolour or plural level (not illustrating), and the distribution mode of each color is not done qualification yet.

Please refer to Fig. 3 D, then, form a

240 on the reinforced

220 in adhering to, and cover color layer 230.This

240 has a plurality of

240a, and the position of these

240a is corresponding to push-button unit 216.The method that forms this

240 for example comprises injection moulding, hot-forming or other suitable modes, and the material of

240 for example comprises thermoplastic elastomer (TPE), silicon rubber, thermoplastic matrix's amine polyformate, thermoplastic elastomer, thermoplastic resin or his suitable material.

In addition, when forming this

240, also part can be adhered to reinforced

220 is pressed in these pierced

216a, even can make and adhere to reinforced

220 and can slightly protrude in outside the pierced

216a, avoiding dust accretions in pierced

216a, and allow the blind person be easy to identification button relative position.In addition, after forming

240, viewable design or demand attractive in appearance and the peripheral redundance of cut-

210.

Please refer to Fig. 3 E, then, configuration one light

250 on

240 is to provide uniform surface light source.The mode of configuration light

250 for example is earlier to be coated with the last layer viscose glue at

240a, again light

250 is pasted on

240 on.This light

250 for example is inorganic light-emitting element layer, organic illuminating element layer or other suitable luminous material layers.With inorganic light-emitting element layer and organic illuminating element layer is example, and light

250 is made of upper/lower electrode layer (not illustrating) and the organic luminous material layer or the luminous organic material layer (not illustrating) that are clipped in wherein.In addition, light

250 can be designed to required shape, thickness and color according to the pattern of the pierced

216a that will throw light on or numeral, so that preferable radiation response to be provided.So far, just roughly finish the making of

200.

The structure of

200 and the function at each position below will be described in detail in detail.Please continue the E with reference to Fig. 3, the

200 of present embodiment comprises that a pattern metal

210, adheres to reinforced

220, a

230, a

240 and a light emitting element layer 250.Pattern metal

210 has positive 212 and one

214, and comprises the push-

216 of the independent start of a plurality of energy, wherein has a plurality of pierced

216a on these push-

216.

Because pattern metal

210 is a metal material thin slice, but the

212 of pattern metal

210 and surface, side and the gap of pierced

216a be reflection ray all, so

200 has the effect of metallic luster and the solid of metal, abundant texture.

Adhere on the

214 that reinforced

220 is disposed at pattern metal thin slice 210.

230 is disposed at and adheres on the reinforced layer 220.

240 is disposed at and adheres on the reinforced

220, and covers

230, and

240 has a plurality of

240a, and the position of its

240a is corresponding to these push-

216.

It should be noted that, if when

240 directly is disposed at the

214 of pattern metal

210, adhesive force between itself and pattern metal

210 is relatively poor, so present embodiment is to adhere to reinforced

220 in 214 configurations of the back side of pattern metal

210 earlier.Since pattern metal

210 with adhere to reinforced

220 between and

240 and adhere to reinforced

220 between adhesive force all quite good, so can solve

240 and pattern metal

210 between the not good problem of adhesive force.In addition, because

230 is difficult for directly being attached on the pattern metal

210, therefore adhering to reinforced

220 also can be as the basis of adhering to of

230.

Light

250 is configured on the

240, and its purposes provides uniform surface light source with the pierced

216a on the irradiation push-button unit 216.Because light

250 complete covering

240, and bedded structure can produce an area source, so push-

216 and pierced

216a one can be provided better range of exposures and then gain irradiation effect.Person more, the light intensity that light

250 sends is even, so pierced

216a can appear uniform light, and the user watches font or the pattern definition on the

216 preferable.

Fig. 4 illustrates the button piece of preferred embodiment of the present invention and the schematic diagram of button circuit board

200 be disposed at

300 on.

300 comprises a

310, a plurality of

320 and a plurality of metal clips (metal-dome) 330.Wherein,

320 all is disposed on the

310 with

330, and each

330 is positioned on the corresponding

320, but does not contact with fixed contact 320.Each

240a of

240 is suitable for contacting with

330 across light emitting element layer 250.When the user depresses push-

216, can push

330 corresponding to the

240a of push-

216,

330 is contacted with fixed contact 320.By contacting of

330 and fixed

320, but user's input data is to portable electronic devices such as mobile phone or personal digital assistants.In addition, because the thickness of light

250 is quite thin, so can not influence the effect that

240a pushes

330.

Fig. 5 illustrates the schematic diagram of the mobile phone of the button piece manufacturing that utilizes preferred embodiment of the present invention.Because

200 has the solid of metallic luster and metal, abundant texture, so utilize the aesthetic feeling of mobile phone of the button piece manufacturing of preferred embodiment of the present invention to be greatly improved.Also because the pierced

216a on the

200 can appear light uniformly, so literal on the button of mobile phone or clear patterns degree are preferable.

1. a fabricating pieces of key is characterized in that: comprise the steps:

(1) provide a pattern metal thin slice, this pattern metal thin slice has positive and a back side, and this pattern metal thin slice comprises the push-button unit of the independent start of a plurality of energy, wherein has a plurality of pierced pattern structures on those push-button units;

(2) reinforced layer is adhered in configuration one on this back side of this pattern metal thin slice;

(3) adhere to formation one color layer on the reinforced layer in this;

(4) adhere to formation one salient point layer on the reinforced layer in this, this salient point layer also covers this color layer, and this salient point layer has a plurality of salient points, and the position of this salient point is corresponding to this push-button unit; And

(5) configuration one light emitting element layer on this salient point layer is in order to provide uniform surface light source.

2. fabricating pieces of key as claimed in claim 1 is characterized in that: the manufacture method of this pattern metal thin slice comprises:

One sheet metal is provided; And

Etching or cut this sheet metal to form this pattern metal thin slice.

3. fabricating pieces of key as claimed in claim 1 is characterized in that: the method that forms this color layer comprises printing, bat printing or spraying.

4. fabricating pieces of key as claimed in claim 1 is characterized in that: the method that forms this salient point layer comprises injection moulding or hot-forming.

5. fabricating pieces of key as claimed in claim 1 is characterized in that: when forming this salient point layer, comprise more with part that this adheres to reinforced layer to be pressed in this pierced pattern structure.

6. fabricating pieces of key as claimed in claim 1 is characterized in that: after forming this salient point layer, more comprise the redundance of the periphery that cuts this pattern metal thin slice.

7. button piece is characterized in that: comprising:

One pattern metal thin slice has positive and a back side, and this pattern metal thin slice comprises the push-button unit of the independent start of a plurality of energy, wherein has a plurality of pierced pattern structures on those push-button units;

One adheres to reinforced layer, is disposed on this back side of this pattern metal thin slice;

One color layer is disposed at this and adheres on the reinforced layer;

One salient point layer is disposed at this and adheres on the reinforced layer, and covers this color layer, and this salient point layer has a plurality of salient points, and wherein the position of those salient points is corresponding to those push-button units; And

One light emitting element layer is disposed on this salient point layer, in order to uniform surface light source to be provided.

8. button piece as claimed in claim 7 is characterized in that: this light emitting element layer comprises inorganic light-emitting element layer or organic illuminating element layer.

9. button piece as claimed in claim 7 is characterized in that: this adheres to part reinforced layer and more is filled in those pierced pattern structures.

10. button piece as claimed in claim 7 is characterized in that: this material that adheres to reinforced layer comprises thermoplastic matrix's amine polyformate, thermoplastic elastomer or thermoplastic resin.

11. button piece as claimed in claim 7 is characterized in that: the material of this salient point layer comprises thermoplastic elastomer (TPE).

12. button piece as claimed in claim 7 is characterized in that: the material of this salient point layer comprises silicon rubber, thermoplastic matrix's amine polyformate, thermoplastic elastomer or thermoplastic resin.