CN206363934U

CN206363934U - Double-layered luminous keyboard structure

Info

Publication number: CN206363934U
Application number: CN201621448401.4U
Authority: CN
Inventors: 刘宝兵
Original assignee: Chongqing Qi Xinda Technology Co Ltd
Current assignee: Chongqing Qi Xinda Technology Co Ltd
Priority date: 2016-12-27
Filing date: 2016-12-27
Publication date: 2017-07-28
Anticipated expiration: 2026-12-27

Abstract

The utility model is related to double-layered luminous keyboard structure.Double-layered luminous keyboard structure, including key layer and conduction/cold light film composite bed；The bottom of the button of the key layer is provided with conductive rubber；The conduction/cold light film composite bed includes cold light film and the conductive circuit layer being printed in cold light film；The conductive circuit layer is conducting wire and switch contact, and wherein switch contact is divided into first switch contact and second switch contact；The first switch contact and second switch contact are distributed in the position corresponding with button in pairs；The first switch contact overhangs the first lead by conducting wire to cold light film；The second switch contact overhangs the second lead by conducting wire to cold light film.Double-layered luminous keyboard structure of the present utility model, double-decker is reduced to by traditional four-layer structure, has saved processing procedure, and whole illuminated keyboard thickness reduction can make thinner product, penetrating for light is more, and keypad brightness is higher, more power saving.

Description

Double-layered luminous keyboard structure

Technical field

The utility model is related to illuminated keyboard field, more particularly to double-layered luminous keyboard structure.

Background technology

At present, traditional illumination keyboard structure is complicated, as shown in figure 1, Conventional luminescent keyboard is by button I, upper flexible circuit Plate II, lower flexible PCB III and light guide plate IV four-layer structures are constituted；By being emitted beam in lowermost light guide plate, light Through transparent conductive layer, the transparency window on button is radiated at, transparency window makes numeral or character, allows user in dark surrounds Remain to see clearly the character on keyboard using keyboard, so as to use the electronic equipment with keyboard in dark surrounds；As shown in Fig. 2 Traditional LED light guide plates regard light source using LED, by the fully reflecting surface of the lucite piece of light guide plate, allow light in lucite Interior transmission, then light scattering point is printed on lucite surface, the scattering point on surface is encountered when light is transmitted in lucite Afterwards, the total reflection situation on scattering point destruction lucite surface, light just scatters lucite in the position for dissipating color dot, made The surface light emitting of LED light guide plates, when lucite surface sets many scattering points, just makes the light in whole face by lucite surface Project via transparent conductive layer, by the window on button, make key light emitting.But have because traditional LED light guide plates are that breaking is bad The total reflection of machine glass surface makes light project lucite piece, and need not light at button needs how much light, no button To increase illumination efficiency, luminous energy loss is reduced, makes electronic equipment more power saving, so the position of scattering point, the big palpulus of scattering point To change with being designed by mirror, so except scattering contact, the surface of the other original papers destruction lucite otherwise contacted is all-trans Penetrate after characteristic, light can be projected from the contact surface of original paper, cause useless light to project, useful light is reduced, and is made at button Should there are luminance-reduction, energy consumption increase.So the conductive layer outside light guide plate must do with light guide plate and not contact control, that is, it is guide-lighting Plate must be separated with lower conductiving layer, be made up of two completely self-contained materials, it is larger that this allows for thickness.

Utility model content

In order to solve the above technical problems, the utility model provides double-layered luminous keyboard structure, using double-decker, greatly Thickness and production cost are reduced greatly, while energy saving.

The utility model solves the technical scheme that its technical problem used：Double-layered luminous keyboard structure, it includes Key layer and conduction/cold light film composite bed；The bottom of the button of the key layer is provided with conductive rubber；Conduction/the cold light Piece composite bed includes cold light film and the conductive circuit layer being printed in cold light film；The conductive circuit layer is conducting wire and switch Contact, wherein switch contact are divided into first switch contact and second switch contact；The first switch contact and second switch are touched Point is distributed in the position corresponding with button in pairs；The first switch contact overhangs first by conducting wire to cold light film Lead；The second switch contact overhangs the second lead by conducting wire to cold light film.

The cold light film includes substrate, nesa coating, electroluminescent bisque and conductive silver slurry layer from top to bottom；It is described to lead Electric line layer is printed on subtegulum.

The substrate is transparent polyester resin piece or POLYCARBONATE SHEET, and its thickness is 50~500 microns.

The thickness of the conductive circuit layer is 3~30 microns.

The beneficial effects of the utility model：Double-layered luminous keyboard structure of the present utility model, prints using in cold light film Brush conducting channel, double-decker is reduced to by traditional four-layer structure, has not only saved processing procedure, and because there was only one layer of base material thickness And lower conductiving layer need not be separated with light guide plate, whole illuminated keyboard thickness is reduced, thinner product can be made, and because only There is one layer of base material, make light shorter from the path that orlop injects to keyboard, penetrating for light is more because having lacked layer of transparent base material, Keypad brightness is higher, that is, double-decker relative to four-layer structure in the case of keypad brightness identical, double-deck structure energy More power saving.

Brief description of the drawings

Fig. 1 is the schematic diagram of traditional illuminated keyboard；

Fig. 2 is the principle of luminosity figure of traditional illuminated keyboard；

Fig. 3 is the schematic diagram of the double-layered luminous keyboard structure of embodiment；

Fig. 4 is the principle schematic of the double-layered luminous keyboard structure of embodiment；

Fig. 5 is the schematic diagram of the pressed state of the double-layered luminous keyboard structure of embodiment；

Fig. 6 is the schematic diagram of the cold light film of the double-layered luminous keyboard structure of embodiment.

Embodiment

In order to deepen to understand of the present utility model, the utility model is done further below in conjunction with drawings and examples It is described in detail, the embodiment is only used for explaining the utility model, protection domain of the present utility model is not constituted and limited.

Embodiment

As shown in Figures 3 to 6, present embodiments provide double-layered luminous keyboard structure, it include key layer 1 and conductive/ Cold light film composite bed 2；The bottom of the button of the key layer 1 is provided with conductive rubber；The conduction/cold light film composite bed 2 is wrapped Include cold light film 21 and the conductive circuit layer 22 being printed in cold light film 21；The conductive circuit layer 22 is that conducting wire and switch are touched Point, wherein switch contact are divided into first switch contact 221 and second switch contact 222；The first switch contact 221 and second Switch contact 222 is distributed in the position corresponding with button in pairs；The first switch contact 221 is by conducting wire to cold light Piece 21 overhangs the first lead 223；The second switch contact 222 overhangs the second lead by conducting wire to cold light film 21 224；The cold light film 21 includes substrate 211, nesa coating 212, electroluminescent bisque 213 and conductive silver slurry layer from top to bottom 214；The conductive circuit layer 22 is printed on subtegulum 211；The substrate 211 is transparent polyester resin piece or makrolon Piece, its thickness is 50~500 microns；The thickness of the conductive circuit layer 22 is 3~30 microns.

The double-layered luminous keyboard structure of the present embodiment, cold light film is by building transparency conducting layer and conduction on substrate Silver slurry layer, prints one layer of electroluminescent powder, when in transparency conducting layer and conductive silver paste interlayer in transparency conducting layer and silver paste interlayer Apply after certain voltage (typically in 50~150V, 100~1000Hz alternating current), electric field is produced in two layers of conductive layer, it is electroluminescent Luminescent powder can produce fluorescence because of electric field, be projected from transparency conducting layer, so as to substitute the illumination functions of traditional LED light guide plates.Because cold The principle of luminosity of mating plate is different from LED light guide plates, the transmission of light is not done by the surface total reflection principle of hyaline layer, so in cold light The surface of piece can do any printing treatment, if need the part of printing opacity reserve printing opacity space, utilize this spy of cold light film Property, the lower conductiving layer of traditional four laminars illuminated keyboard and cold light film can be integrated into one layer.

The double-layered luminous keyboard structure of the present embodiment, using the printing electrically conductive circuits in cold light film, by traditional four layers Structure is reduced to double-decker, has not only saved processing procedure, and because there was only one layer of base material thickness and need not be by lower conductiving layer with leading Tabula rasa is separated, and is reduced whole illuminated keyboard thickness, can be made thinner product, and because there was only one layer of base material, makes light from most lower The path that layer injects to keyboard is shorter, and penetrating for light is more because having lacked layer of transparent base material, and keypad brightness is higher, that is, double Rotating fields are relative to four-layer structure in the case of keypad brightness identical, and double-deck structure can more power saving.

Above-described embodiment should not in any way limit the utility model, all by the way of equivalent substitution or equivalency transform The technical scheme of acquisition is all fallen within protection domain of the present utility model.

Claims

1. double-layered luminous keyboard structure, it is characterised in that：It includes key layer and conduction/cold light film composite bed；The button The bottom of the button of layer is provided with conductive rubber；The conduction/cold light film composite bed includes cold light film and is printed in cold light film Conductive circuit layer；The conductive circuit layer is conducting wire and switch contact, and wherein switch contact is divided into first switch contact With second switch contact；The first switch contact and second switch contact are distributed in the position corresponding with button in pairs；Institute State first switch contact and the first lead is overhang to cold light film by conducting wire；The second switch contact passes through conducting wire The second lead is overhang to cold light film.

2. double-layered luminous keyboard structure according to claim 1, it is characterised in that：The cold light film includes from top to bottom Substrate, nesa coating, electroluminescent bisque and conductive silver slurry layer；The conductive circuit layer is printed on subtegulum.

3. double-layered luminous keyboard structure according to claim 2, it is characterised in that：The substrate is transparent terylene tree Fat piece or POLYCARBONATE SHEET, its thickness are 50~500 microns.

4. double-layered luminous keyboard structure according to claim 1, it is characterised in that：The thickness of the conductive circuit layer is 3~30 microns.