CN201298481Y

CN201298481Y - Keyboard with lighting effect

Info

Publication number: CN201298481Y
Application number: CNU2008202097533U
Authority: CN
Inventors: 林志聪
Original assignee: Changshu Sunrex Technology Co Ltd
Current assignee: Changshu Sunrex Technology Co Ltd
Priority date: 2008-11-14
Filing date: 2008-11-14
Publication date: 2009-08-26
Anticipated expiration: 2018-11-14

Abstract

A keyboard with lighting effect comprises a button set unit and more than one lighting elements. The button set unit comprises a plurality of buttons and a thin film circuit board that is electrically connected with each button. The thin film circuit board has a thin film bottom layer, a thin film intermediate layer located on the thin film bottom layer and a thin film top layer located on the thin film intermediate layer. The surface where the thin film bottom layer contacts the thin film intermediate layer is defined as a reflecting surface, on which a plurality of reflecting light guiding points is convexly provided. These lighting elements are arranged in the bottom of the thin film top layer of the thin film circuit board and are downward penetrated through the thin film intermediate layer and the thin film bottom layer, such that the ray emitted by the lighting element can be evenly diverged to the upside under the reflection of these reflecting light guiding points.

Description

The key board unit of tool illumination effect

Technical field

The utility model relates to a kind of key board unit, particularly relates to a kind of key board unit of tool illumination effect.

Background technology

The keyboard of mobile computer or the button of mobile phone all adopt thin keypressing structure at present, though it is ultra-thin that this kind thin keypressing structure has volume, weight lightly reaches operates advantages such as accurate, even and for the convenience of the users still can operation keyboard or button under rather dark environment, therefore relevant dealer develops the design that floor light is provided, for example: TaiWan, China is announced " tool is input keyboard backlight evenly " No. 516671, announce No. 587800 on " keyboard " with backlight module, certificate number M306689 " light guide plate of keyboard and backlight module ", certificate number M330513 novel patent cases such as " keyboard ray structures ", on the whole the luminescent designs of those keyboards is below button or side is provided with light source, light source one side is provided with a light guide plate, make the ray cast of light source after light guide plate, can be through reflection and penetrate away by the transmission region of button.Yet different because of each button with distance between light source, cause the printing opacity brightness difference of each button, to add light guide plate and be all thick platysome, its angle of reflection is big, so that effectively concentrated area ejaculation of light, and the disappearance of luminance shortage is more arranged.

The utility model content

The purpose of this utility model is that a kind of key board unit that the tool illumination effect of even light-guiding effect is provided is being provided.

The key board unit of the utility model tool illumination effect; It is characterized in that: include:

One key groups unit, include a plurality of buttons and one and the film circuit board that electrically connects of this button respectively, this film circuit board has a film bottom, and is positioned at membrane middle layer on this film bottom, an and film top layer that is positioned on this membrane middle layer, defining this surface that this film bottom contacts with this membrane middle layer is reflecting surface, on this reflecting surface and convex with a plurality of reflection leaded light points; And

An above light-emitting component is this film top layer bottom surface that is laid in this film circuit board, and runs through this membrane middle layer and this film bottom downwards.

The beneficial effects of the utility model are: the light that light-emitting component sent can upwards evenly be dispersed under the reflex of reflection leaded light point, and uniform light guide effect is provided.

Description of drawings

Fig. 1 is the exploded view of key board unit one preferred embodiment of the utility model tool illumination effect;

Fig. 2 is the local amplification decomposition figure of the preferred embodiment;

Fig. 3 is the assembled sectional view of the preferred embodiment; And

Fig. 4 is that partial enlarged drawing is analysed and observe in the combination of the preferred embodiment, and the reflex that light that light-emitting component produces is subjected to reflecting leaded light point is described.

Embodiment

The utility model is elaborated as follows below in conjunction with an accompanying drawing and an embodiment:

Consulting Fig. 1,2, is a preferred embodiment of the key board unit 2 of the utility model tool illumination effect, and key board unit 2 includes a key groups unit 3 and more than one light-emitting component 4.Key groups unit 3 includes a deckle board 31, a plurality ofly is located at button 32 on the deckle board 31, a plurality of flexible member 33 and one and the film circuit board 34 that electrically connects of each button 32.Deckle board 31 is a metal plate, and corresponding each button 32 predetermined position are dashed to establish and formed a plurality of holding grooves 311 and a plurality of perforation 312 on the deckle board 31.Each button 32 then has a plurality of bridge formation 321 and a plurality of keycaps 322 of respectively building bridge on 321 that are mounted on that are laid on the deckle board 31.Because those build bridge 321, the annexation of 31 of those keycaps 322 and deckle boards belongs to existing structure, so will not give unnecessary details in this.Convex with a projection (figure does not show) as for flexible member 33 bottom surfaces.

Still see also Fig. 1,2, described film circuit board 34 has a film bottom (membrancebottom layer) 341, and is positioned at membrane middle layer (membrancemiddle layer) 342 on the film bottom 341, an and film top layer (membrancetop layer) 343 that is positioned on the membrane middle layer 342.This surface that definition film bottom 341 contacts with membrane middle layer 342 is a reflecting surface 344, convex with a plurality of reflection leaded light points 345 on the reflecting surface 344, those reflection leaded light points 345 are made of the leaded light lacquer, and those reflection leaded light points 345 are bridge formation 321 places that are arranged at contiguous each button 32.This film bottom 341 and this membrane middle layer 342, and aforementioned deckle board 31 on be provided with a perforate 346,347,312 respectively corresponding to each light-emitting component 4 default place.In addition, the corresponding respectively projection place of this flexible member 33 is provided with one respectively and connects a little 348 on the film bottom 341 of film circuit board 34.In addition, special instruction be, film bottom 341, membrane middle layer 342, and film top layer 343 all be made by light conductivity good material such as Merlon (PC) or acryl (PMMA) etc.Respectively this keycap 322 can be made by light-transmitting materials, to increase translucent effect.

Consult Fig. 1,2, the utility model illuminated keyboard device 2 also includes an elastic patch 35 of being located on the film top layer 343 of film circuit board 34.Aforementioned those flexible members 33 be arranged at build bridge 321 with elastic patch 35 between, an end of flexible member 33 runs through builds bridge 321 and push up and pull in keycap 322 bottom surfaces, the other end then pastes and touches elastic patch 35, and its projection and passing outside the elastic patch 35.

Consult Fig. 1,2, described light-emitting component 4 is light-emitting diode, is laid in film top layer 343 bottom surfaces of film circuit board 34, and preferable laying mode is four corners in film top layer 343 bottom surfaces that those light-emitting components 4 are positioned film circuit board 34.Those light-emitting components 4 also run through on film bottom 341, membrane middle layer 342 and the deckle board 31 of film circuit board 34 corresponding respectively this perforate 346,347 downwards and bore a hole 312.

Consult Fig. 3, when keycap 322 was subjected to pushing, simultaneously the build bridge projections of the corresponding flexible member 33 of 321 compressings of interlock contacted downwards to connect and correspondingly connect a little 348, the formation loop that electrically conducts.What specify is, thickness after the film bottom 341 of film circuit board 34, membrane middle layer 342 and film top layer 343 are combined integrated still is a thin slice body, therefore, those light-emitting components 4 pass on membrane middle layer 342, film bottom 341 and the deckle board 31 corresponding perforate 346,347 and bore a hole after 312, after the horizontal throw light that light-emitting component 4 is sent projects those reflection leaded light points 345, those reflection leaded light points 345 can further upwards be dispersed the light reflection, and uniform light guide effect is provided.

Claims

1. the key board unit of a tool illumination effect; It is characterized in that: include:

One key groups unit, include a plurality of buttons and one and the film circuit board that electrically connects of each described button, described film circuit board has a film bottom, and is positioned at membrane middle layer on the described film bottom, an and film top layer that is positioned on the described membrane middle layer, on the end face of described film bottom and convex with a plurality of reflection leaded light points; And

An above light-emitting component, it is the described film top layer bottom surface that is laid in described film circuit board, and run through described membrane middle layer and described film bottom downwards, make the light that described light-emitting component sent under the reflex of described reflection leaded light point, upwards to disperse.

2. the key board unit of tool illumination effect according to claim 1, it is characterized in that: also include an elastic patch of being located on the described film top layer of described film circuit board, and each described flexible member other end convexes with a projection that passes outside the described elastic patch, when arbitrary keycap was pressed, the projection of the corresponding flexible member of interlock touched the described film circuit board of conducting downwards.

3. the key board unit of tool illumination effect according to claim 2, it is characterized in that: described key groups unit has deckle board and a plurality of flexible member of being located at described film bottom below, each described button then has a plurality of bridge formation and a plurality of keycaps that are mounted on each described bridge formation that are laid on the described deckle board, the described keycap bottom surface of pulling, each described flexible member one end top, the other end then can be pressed and touch the described film circuit board of conducting indirectly along with corresponding keycap.

4. the key board unit of tool illumination effect according to claim 1 is characterized in that: described light-emitting component is a light-emitting diode.

5. the key board unit of tool illumination effect according to claim 1 is characterized in that: described reflection leaded light point is made of the leaded light lacquer.

6. the key board unit of tool illumination effect according to claim 3, it is characterized in that: the described film bottom of described film circuit board and described membrane middle layer, and described deckle board on be provided with a perforate respectively corresponding to the default place of each described light-emitting component, place for each described light-emitting component.

7. according to the key board unit of claim 1 or 3 described tool illumination effects, it is characterized in that: described reflection leaded light point is arranged at contiguous each described button place.

8. according to the key board unit of claim 1 to 6 each described tool illumination effect, it is characterized in that: described film bottom, membrane middle layer and film top layer all are made by the good material of light conductivity.

9. the key board unit of tool illumination effect according to claim 8 is characterized in that: the good material of described light conductivity can be selected from Merlon or acryl.

10. according to the key board unit of claim 1 or 6 described tool illumination effects, it is characterized in that: described light-emitting component is four corners in described film top layer bottom surface that are positioned described film circuit board.