CN201256405Y

CN201256405Y - Contact key layout construction for mobile phone

Info

Publication number: CN201256405Y
Application number: CNU2008201467317U
Authority: CN
Inventors: 陈芳员
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-06-10
Anticipated expiration: 2018-08-20

Abstract

The utility model discloses a layout structure of cell phone touching keys, which comprises a touching key FPC (a soft printed circuit board), wherein the touching key FPC is mainly formed by gluing more than two layers of the FPC, and the FPC is arranged on a non-display area arranged on the periphery of a display area of an LCD display screen of the cell phone in an overlapping mode. The novel touching key FPC 01 is formed by gluing a plurality of FPC layers, and is added on the non-display area arranged on the periphery of the display area of the LCD display screen of the cell phone, the spare areas outside the display area of the LCD display screen is fully utilized, which effectively reduces the size of the whole phone, and the layout structure can be manufactured into various shapes according to the needs, the abradability is good, the hand-feeling is good, the assembly and the fixing are convenient and simple, the layout structure only needs to be glued on the phone shell through gum, the assembling process of an original key board is simplified, the manufacturing time is reduced, the manufacturing capacity is improved, and simultaneously, the yield of products is improved, and the cost and the maintaining costs of the whole phone are reduced.

Description

A kind of mobile phone membrane keyboard layout structure

Technical field

The utility model relates to a kind of membrane keyboard layout structure, relates in particular to a kind of mobile phone membrane keyboard layout structure.

Background technology

Mobile phone is very universal as topmost portable terminal, becomes one of main media of current communication.Along with the raising and the continuous progress in science and technology of people's living standard, the function that portable terminal is realized is more and more, as network browsing and mail, recreation, video display and MP4 broadcast etc.People are not only more and more higher to the mobile phone appearance requirement, pay close attention to the appearance of mobile phone more, and function is wished to get more and more, and size is wished more and more littler, and are therefore nowadays also just more and more with the mobile phone of membrane keyboard function.Present mobile phone on the market is most of or membrane keyboard is set to be shielded outside, the membrane keyboard negligible amounts; Be to use the LCD of band touch function, cost is higher; Membrane keyboard and LCD are set side by side at interior panel, cause the complete machine length dimension longer.

The utility model content

Problem to be solved in the utility model provides that a kind of membrane keyboard quantity is many, resistance to wear good, good hand touch, reduced complete machine cost and size and assembled mobile phone membrane keyboard layout structure easy to maintenance.

The technical scheme that the utility model adopted is: mobile phone membrane keyboard layout structure, comprise membrane keyboard FPC (flexible printed circuit board), described membrane keyboard FPC is convenient to install for stiffened, mainly pasted by modes such as glue by two-layer and above FPC and form, described membrane keyboard FPC stack is arranged on the non-display area of viewing area periphery of LCD of mobile phone display screen.

In order to make the user easy to use when night or light are more weak, also be provided with at least one LED as light source on the described membrane keyboard FPC by modes such as welding, the position of LED and quantity are determined according to position, the quantity of membrane keyboard, in order to reduce thickness, it is emitting led that described LED is preferably the top, and preferably on membrane keyboard FPC, also be pasted with one deck touch keyboard light guide sheet so that luminous evenly, the aperture that also is provided with location hole on the described touch keyboard light guide sheet and passes for LED.

In order to guarantee the sensitivity of membrane keyboard, preferred described touch key chip paster is on membrane keyboard, and in order to reduce to assemble thickness, the both sides of preferred described touch key chip and touch key solder joint office touch key FPC bending place, so that after the bending with touch key solder joint office casing inside and outside both sides, be placed on the free time place of LCD front and back after thicker like this touch chip is installed, saved the space, membrane keyboard FPC is connected conducting by connector with LCD.

Described membrane keyboard FPC makes multilayer hollow type (AIRGAP) in the bending place, does not promptly apply to bind and stay to layering and cause splendid bending effect to reach.

The outer eyeglass that is stamped on the described mobile phone membrane keyboard layout structure, preferred lens thickness is less than 1mm, to guarantee the sensitivity of membrane keyboard.

The beneficial effects of the utility model are: the utility model membrane keyboard FPC01 is pasted together by multi-layer FPC and forms, stack is arranged on the non-display area of viewing area periphery of LCD of mobile phone display screen, made full use of the clear area outside the LCD of mobile phone display screen viewing area, effectively reduced the complete machine size, and can make different shape as required, because individual layer FPC very thin (0.07mm), thereby the very thin thickness after making, can make a plurality of membrane keyboards as required, resistance to wear is good, good hand touch, the assembling process of former cell phone keyboard has been simplified in assembling and fixing easily and simple only need stick on the casing with gum and get final product, shortened the production time, improve the production production capacity, improved yield of products simultaneously, also reduced the cost and the maintenance cost of complete machine.

Description of drawings

Fig. 1 a, Fig. 1 b are the membrane keyboard FPC 01 of the utility model embodiment and the paster emitting led 02 positive and negative structural representations in top on it;

Fig. 2 is the structural representation of the light guide sheet (LGF) 03 of the utility model embodiment;

Fig. 3 is that the membrane keyboard FPC 01 of the utility model embodiment is assemblied in the structural representation on the casing 04;

Fig. 4 a, Fig. 4 b are the membrane keyboard FPC 01 and LCD 05 assembly structure schematic diagram of the utility model embodiment;

Fig. 5 is the membrane keyboard assembling schematic diagram of the utility model embodiment.

Embodiment

Now with embodiment the utility model is described in further detail in conjunction with the accompanying drawings:

Be illustrated in figure 1 as membrane keyboard FPC 01 positive and negative structural representation, the utility model membrane keyboard FPC 01 has six and touches strong solder joint 011, can increase and delete according to demand certainly; For the ease of installing, membrane keyboard FPC 01 in this enforcement is pasted together by glue by 2～3 layers of FPC, thickness is about 0.25mm, according to concrete layout, present embodiment is welded with 4 LED 02 that the top is luminous on membrane keyboard FPC 01, certainly can reasonably arrange the LED 02 of varying number as required, in order to guarantee the sensitivity of membrane keyboard, touch key chip 012 paster is on membrane keyboard FPC 01, in order to lower assembling thickness, the both sides of touch key chip 012 and touch key solder joint 011 office touch key FPC 01 bending place, so that after the bending with the inside and outside both sides of touch key solder joint 011 office casing 04, and in order to reach splendid bending effect, membrane keyboard FPC makes 01 bending place multilayer hollow type (AIRGAP), does not promptly apply to bind and stay and be layering.

Fig. 2 is the structural representation of light guide sheet (LGF) 03, touch keyboard light guide sheet (LGF) 03 periphery has 3 small sircle holes 031 to play the assembling and positioning effect in the present embodiment, and the aperture 032 that passes for LED is arranged, and many concave points are arranged on the touch keyboard light guide sheet 03, play leaded light and transmit light acting on uniformly.In order to make membrane keyboard light guide sheet (LGF) 03 be convenient to be assemblied on the membrane keyboard FPC 01, rationally paste gum (preventing to hinder even light-guiding) at the back side of touch keyboard light guide sheet (LGF) 03, the thickness of touch keyboard light guide sheet 03 is generally about 0.125mm.

Fig. 3 is that membrane keyboard FPC 01 is assemblied in the structural representation on the casing 04, by touching gum in the stickup of strong FPC 01 back side, membrane keyboard FPC 01 is fixed on the plastic rubber case 04, as shown in the figure, touch this moment key chip 012 and touch key solder joint 011 office casing 04 inside and outside both sides.

Fig. 4 a, Fig. 4 b are the membrane keyboard FPC 01 and LCD display 05 assembly structure schematic diagram of the utility model embodiment, as shown in the figure, membrane keyboard FPC 01 stack is arranged on the non-display area of viewing area periphery of LCD of mobile phone display screen 05, utilized the clear area outside LCD of mobile phone display screen 05 viewing area in the casing 04, save the space, and can provide the quantity of membrane keyboard many.Membrane keyboard FPC 01 is connected conducting by connector 06 with LCD display 05.

Fig. 5 is a membrane keyboard assembling schematic diagram, present embodiment is by the double faced adhesive tape mode, after being attached to touch keyboard light guide sheet 02 on the membrane keyboard FPC 01, by touching gum in the stickup of strong FPC 01 back side, membrane keyboard FPC 01 is fixed on the plastic rubber case 04, again eyeglass 07 is covered in touch keyboard light guide sheet (LGF) 02 and be attached on the plastic cement shell 04, in order to guarantee the sensitivity of membrane keyboard, the thickness of eyeglass 07 is below 1.0mm, in order to make the convenient membrane keyboard that uses of user, can also on eyeglass 07, make the indication icon by silk-screen in addition.

Claims

1, a kind of mobile phone membrane keyboard layout structure, it is characterized in that: comprise membrane keyboard FPC (01), described membrane keyboard FPC (01) is mainly pasted by two-layer above FPC and forms, and described membrane keyboard FPC (01) stack is arranged on the non-display area of viewing area periphery of LCD of mobile phone display screen.

2, mobile phone membrane keyboard layout structure according to claim 1 is characterized in that: also be provided with at least one LED (02) on the described membrane keyboard FPC (01) as light source.

3, as mobile phone membrane keyboard layout structure as described in the claim 2, it is characterized in that: also be pasted with one deck touch keyboard light guide sheet (03) on the described membrane keyboard FPC01.

4, as mobile phone membrane keyboard layout structure as described in the claim 3, it is characterized in that: the aperture (032) that also is provided with location hole (031) on the described touch keyboard light guide sheet (03) and passes for LED.

5, as mobile phone membrane keyboard layout structure as described in the claim 3, it is characterized in that: described LED is top emitting led (02).

6, as mobile phone membrane keyboard layout structure as described in the arbitrary right of claim 1 to 5, it is characterized in that: described touch key chip (012) paster is on membrane keyboard FPC (01).

7, as mobile phone membrane keyboard layout structure as described in the claim 6, it is characterized in that: the both sides of described touch key chip (012) and touch key solder joint (011) office touch key FPC (01) bending place so that after the bending with the inside and outside both sides of touch key office casing (04).

8, as mobile phone membrane keyboard layout structure as described in the claim 7, it is characterized in that: described membrane keyboard FPC (01) makes the multilayer hollow type in the bending place.

9, as mobile phone membrane keyboard layout structure as described in the claim 7, it is characterized in that: the outer eyeglass (07) that is stamped on the described mobile phone membrane keyboard layout structure.

10, as mobile phone membrane keyboard layout structure as described in the claim 9, it is characterized in that: enclosing cover eyeglass (07) thickness is less than 1mm on the described mobile phone membrane keyboard layout structure.