CN204720362U

CN204720362U - The guide-lighting row graph of backlight module

Info

Publication number: CN204720362U
Application number: CN201520164091.2U
Authority: CN
Inventors: 王百祥
Original assignee: Chicony Power Technology Co Ltd
Current assignee: Chicony Power Technology Co Ltd
Priority date: 2015-03-23
Filing date: 2015-03-23
Publication date: 2015-10-21
Anticipated expiration: 2025-03-23

Abstract

The utility model is the guide-lighting row graph about a kind of backlight module, the device of this backlight module comprises the reflector layer of layered laminate, optical waveguide layer and light shield layer, and above light shield layer, be provided with multiple default keycap, and in the optical waveguide layer surface of back lighting device, and to being positioned at below each default keycap, through the predetermined continuous shape of mode of printing in optical waveguide layer surface forming light guiding graphics, then this light guiding graphics is can in the annular of continuous lines, the continuous lines of at least more than one breach or geometry, regular or irregular continuous lines extension bitmap shape, the lines that its continuous print lines also can be same widths or different width extend shape, continuous guide-lighting continual effect can be had, reach light guide effect even, the object that quality stability is high.

Description

The guide-lighting row graph of backlight module

Technical field

The utility model provides a kind of guide-lighting row graph of backlight module, espespecially can increase the guide-lighting row graph that back lighting device is projected to the light-source brightness of acquiescence keycap, form light guiding graphics in the optical waveguide layer surface of back lighting device through mode of printing, light guiding graphics can be utilized to promote optical waveguide layer and to concentrate the light be projected to bottom each keycap, reach the object around default keycap with the display of obvious light.

Background technology

Along with the progress in electronics technology epoch, much work, general paperwork or image, pictures etc. all can carry out processing operation through computer, and computer is except carrying out various operation process, also can provide online internet, to search, shopping, video signal or download electronic data, video-audio data etc., also can provide and carry out the various computer application pattern such as play, and the interface equipment of indispensability during computer operation, as keyboard, mouse etc., perform various program for computer, carry out the necessary periphery instrument of various operation, in the basic outfit of therefore computer, except main frame and display screen, keyboard and mouse also become indispensable instrument, and the keyboard that current most computer is applied, all that the multiple buttons that can pass through on keyboard perform various control signal, the electric signals such as word or numeral input in main frame, the pattern of keyboard be also be embedded many buttons in common keyboard skeleton frame can for pressing, quite basic computer keyboard pattern.

Therefore, dealer is for improving the pattern of current set keyboard, then in keyboard installing backlight module, with through backlight module by light source projects to each button periphery of keyboard, light is spilt by the gap of adjacent of multiple keyboard, reach the change application increasing keyboard, also light display can be had for keyboard, be easy to the effect distinguished, and at the backlight module that the keyboard having lighting function at present uses, refer to shown in Fig. 5, for the keycap vertical view of prior art keyboard, the backlight layer B surface of contraposition bottom each keycap A of current keyboard, each position is dispersed in through multiple round point shape figure B1, as the guide-lighting purposes of light source to each keycap A of guiding backlight layer B, but because each round point shape figure B1 diameter is only about 0.3mm ~ 1.0mm, and the local being dispersed in backlight layer B surface is among a small circle in region, light source cannot be concentrated and be projected to each keycap A bottom periphery, easy generation light source dispersion, the disappearances such as luminance shortage, and for the printing-ink of guide-lighting purposes, mostly containing very a high proportion of high index of refraction particle, the particle diameter of this high index of refraction particle is about 1 μm ~ 20 μm, when then the printing-ink of leaded light figure being printed on optical waveguide layer surface, can be clogged by high index of refraction particle because of the mesh on printing screen plate, the round point shape figure B1 be printed on backlight layer B is caused easily to form unfilled corner, lack limit, hollow out or the imperfect phenomenon such as uneven, the direct light guide effect affecting round point shape figure B1 is deteriorated, light-conductive rate reduces, the light Presentation Function also affecting each keycap A of keyboard is not good, need to be improved in fact.

So, the round point shape figure that how will solve keyboard back light layer because volume is little, guide-lightingly easily to disperse, the disappearance of guide-lighting luminance shortage and problem, and round point shape graphic printing easily produces unfilled corner when backlight layer surface, lacks the non-uniform phenomenon such as limit or hollow out, the trouble causing light-guiding function to be deteriorated and puzzlement, be engaged in this journey dealer desire most ardently the place, direction of improvement.

Utility model content

Creator is because above-mentioned problem and disappearance, be collect related data, via in many ways assessing and considering, and to engage in the many years of experience of the industry accumulation, via constantly studying and revising, beginning to design this kind can in the optical waveguide layer surface of back lighting device, the light guiding graphics of printed and formed continuous shape, the light source of backlight layer can be concentrated and be projected to each keycap bottom periphery, the utility model patent promoting the guide-lighting row graph of the backlight module of the keycap light display effect of keyboard is born.

Main purpose of the present utility model is the guide-lighting row graph being to provide a kind of backlight module, comprise back lighting device and light guiding graphics, wherein: this back lighting device comprises the reflector layer of layered laminate, optical waveguide layer and light shield layer, and above light shield layer, be provided with multiple default keycap; And this light guiding graphics take shape in back lighting device optical waveguide layer surface and to being positioned at below each default keycap, through the predetermined continuous shape of mode of printing in optical waveguide layer surface forming light guiding graphics.

Wherein, the predetermined continuous shape of this light guiding graphics can be continuous loop shape, at least more than one the continuous lines of breach extend shape or geometry, rule or irregular continuous lines extend shape etc., and the light source in order to the optical waveguide layer by back lighting device is concentrated is upwards projected to each keycap bottom periphery.

Wherein, the predetermined continuous shape of this light guiding graphics is the continuous loop shape of identical or different width, at least more than one the continuous lines of breach extend shape, rule or irregular continuous lines extension shape.

Wherein, the predetermined continuous shape of this light guiding graphics is the continuous lines strip of identical or different width, and lines are the ring-shaped etc. around being quadrangle, pentagon, hexagon etc. or rule or irregular continuous lines continuously.

Wherein, the predetermined continuous shape of this light guiding graphics be in the C shape of a breach, U-shaped or Ω shape or arch.

The beneficial effects of the utility model: this light guiding graphics of the present utility model can annular in continuous lines, at least more than one the continuous lines of breach or geometry, rule or irregular continuous lines extension bitmap shape, the stripe shape that its continuous print lines also can be same widths or different width extends, can have by continuous guide-lighting continual effect, then can reach the object that light guide effect is even, quality stability is high, there is provided bottom good guide-lighting brightness to each default keycap, increase effect of the light visibility of each keycap.

Accompanying drawing explanation

Fig. 1 is three-dimensional exploded view of the present utility model.

Fig. 2 is side cutaway view of the present utility model.

Fig. 3 is the keycap vertical view of the utility model preferred embodiment.

Fig. 4 is the keycap vertical view of another embodiment of the utility model.

Fig. 5 is the keycap vertical view of existing keyboard.

[symbol description]

1, back lighting device

11, reflector

12, optical waveguide layer

121, luminous element

13, light shield layer

14, keycap

2, light guiding graphics

21, annular

22, breach

A, keycap

B, backlight layer

B1, round point shape figure

Embodiment

For reaching above-mentioned purpose and effect, the method etc. of the technological means that the utility model adopts and structure thereof, enforcement, just preferred embodiment of the present utility model of hereby drawing illustrates that its features and functions is as follows in detail, understands completely in order to do profit.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, be respectively three-dimensional exploded view of the present utility model, side cutaway view, the keycap vertical view of preferred embodiment, the keycap vertical view of another embodiment, find out by knowing shown in figure, the guide-lighting row graph of the utility model backlight module, comprise back lighting device 1 and light guiding graphics 2, wherein:

This back lighting device 1 comprises reflector 11 in layered laminate, optical waveguide layer 12 and light shield layer 13, and optical waveguide layer 12 is provided with multiple luminous element 121, and above light shield layer 13, assemble multiple default keycap 14.

This light guiding graphics 2 is predetermined continuous shape, and can in the annular 21 of continuous lines, tool at least more than one the continuous lines (can be the shape of C shape or at least more than one breach 22 of tool such as U-shaped or Ω shape) of breach 22 or geometry, rule or irregular continuous lines extension bitmap shape, the stripe shape that its continuous print lines also can be same widths or different width extends, and can have by continuous guide-lighting continual effect.

Above-mentioned each component is in time being assembled, in optical waveguide layer 12 surface of back lighting device 1, through printing processing mode, multiple light guiding graphics 2 is taken shape in optical waveguide layer 12 surface respectively, and for each light guiding graphics 2 respectively to each default keycap 14 be positioned at above light shield layer 13, namely the light guiding graphics 2 of multiple reservation shape is formed by back lighting device 1, to organize the continuous light guiding graphics being formed the utility model backlight module.

And above-mentioned back lighting device of the present utility model 1, multiple luminous elements 121 projection source being positioned at optical waveguide layer 12 can be utilized, light source can be made to be projected to each light guiding graphics 2 place via optical waveguide layer 12, to be designed in row graph by each light guiding graphics 2, each keycap 14 bottom periphery can will be projected in light source complete set, namely each keycap 14 bottom periphery is kept to have obvious light display effect, and the light-source brightness of each keycap 14 bottom periphery display can be promoted, and the phenomenon of light source loss can be reduced, reach back lighting device 1 to provide and have obviously bottom the multiple keycap 14 of acquiescence, the object of light-source brightness display clearly, and it is even to have light guide effect, quality stability is high, and effect of the light visibility of multiple default keycap 14 can be increased.

And above-mentioned light guiding graphics 2 is in predetermined continuous shape, then through printing machine-shaping when optical waveguide layer 12 surface of back lighting device 1, the guide-lighting purposes printing-ink that light guiding graphics 2 is applied, containing a large amount of high index of refraction particle (particle diameter of this high index of refraction particle is about 1 μm ~ 20 μm) in printing-ink, when then the printing-ink of light guiding graphics 2 being printed on optical waveguide layer 12 surface, even if part high index of refraction particle is plugged the mesh on printing screen plate, also the unlikely light guiding graphics 2 that causes produces obviously, serious unfilled corner, lack limit, hollow out or the imperfect phenomenon such as uneven, and the row graph integrity degree of light guiding graphics 2 can be kept, and there is good guide-lighting usefulness, the light source that each luminous element 121 of optical waveguide layer 12 can be projected, each default keycap 14 bottom periphery is projected to via multiple light guiding graphics 2 is complete respectively, also can pass through the continuous profile design of difference (can around the quadrangle, pentagon, hexagon etc. of shape ringwise, the continuous lines of at least more than one breach 22 of tool or geometry, rule or irregularly shaped etc.) of light guiding graphics 2, good light guide function can be had, the light source of multiple luminous elements 121 of optical waveguide layer 12 can be concentrated to light guiding graphics 2 and be projected to multiple default keycap 14 bottom periphery again, provide multiple keycaps 14 bottom periphery of zones of different to produce the change of the light display effect such as different brightness, different light regions.

Be with, the foregoing is only preferred embodiment of the present utility model, non-ly therefore limit to the scope of the claims of the present utility model, the guide-lighting row graph of the utility model backlight module, it is optical waveguide layer 12 surface in back lighting device 1, through the shaping multiple light guiding graphics 2 of printing processing mode, and for multiple light guiding graphics 2 respectively to the multiple keycaps 14 be positioned on light shield layer 13, with the multiple luminous elements 121 through optical waveguide layer 12, projection source is to optical waveguide layer 12 and be directed to each light guiding graphics 2, what namely utilize each light guiding graphics 2 to concentrate light source complete is projected to each default keycap 14 bottom periphery, can reach each default keycap 14 bottom periphery has obviously, the object of clear light display effect, and not easily there is the imperfect phenomenon such as unfilled corner or hollow out at the processed one-tenth of printing in the light guiding graphics 2 of row graph, there is light guide effect even, the characteristic that quality stability is high, can be complete by the light source projects of optical waveguide layer 12 to each default keycap 14 bottom periphery, reduce light source loss situation, each keycap 14 bottom periphery is made to keep good light display effect, therefore such as can reach the structure of foregoing advantages, device all should be contained by the utility model, this kind of simple and easy modification and equivalent structure change, all should in like manner be contained in the scope of the claims of the present utility model, Chen Ming is given in conjunction.

Therefore, the utility model is design mainly for the guide-lighting row graph of backlight module, utilize the optical waveguide layer surface of back lighting device, to print the shaping multiple light guiding graphics of processing mode, namely by the row graph of light guiding graphics, there is good light guide effect, can by multiple luminous element projection sources of optical waveguide layer, the each default keycap bottom periphery above light shield layer is projected to via each light guiding graphics, and can reach and provide each default keycap bottom periphery to have obviously, clear light Presentation Function is main key protection point, and the continuous shape of light guiding graphics can form good light guide function, and it is even to have light guide effect, the characteristic that quality stability is high, be only make light guiding graphics light source can be concentrated the complete advantage being projected to each default keycap bottom periphery, and not easily there is unfilled corner in the printing course of processing in light guiding graphics, the phenomenons such as hollow out, the complete photoconduction of light guiding graphics can be kept to draw effect, only, the foregoing is only preferred embodiment of the present utility model, non-ly therefore namely limit to the scope of the claims of the present utility model, therefore the simple and easy modification of such as using the utility model specification and graphic content to do and equivalent structure change, all should in like manner be contained in the scope of the claims of the present utility model.

In sum, the guide-lighting row graph of the utility model backlight module is when practical application, enforcement, and for really reaching its effect and object, therefore the utility model is really founding of a practicality excellence, for meeting the application requirement of utility model patent, file an application in accordance with the law.

Claims

1. a guide-lighting row graph for backlight module, is characterized in that comprising back lighting device and light guiding graphics, wherein:

This back lighting device comprises the reflector layer of layered laminate, optical waveguide layer and light shield layer, and above light shield layer, be provided with multiple default keycap; And

This light guiding graphics take shape in back lighting device optical waveguide layer surface and to being positioned at below each default keycap, through the predetermined continuous shape of mode of printing in optical waveguide layer surface forming light guiding graphics.

2. the guide-lighting row graph of backlight module as claimed in claim 1, it is characterized in that, the predetermined continuous shape of this light guiding graphics be in continuous loop shape, at least more than one the continuous lines of breach extend shape or geometry, rule or irregular continuous lines extension shape.

3. the guide-lighting row graph of backlight module as claimed in claim 2, it is characterized in that, the predetermined continuous shape of this light guiding graphics is the continuous loop shape of identical or different width, at least more than one the continuous lines of breach extend shape, rule or irregular continuous lines extension shape.

4. the guide-lighting row graph of backlight module as claimed in claim 2, it is characterized in that, the predetermined continuous shape of this light guiding graphics is the continuous lines strip of identical or different width, and continuously lines be around in quadrangle, the ring-shaped of the regular or irregular continuous lines of pentagon, hexagon.

5. the guide-lighting row graph of backlight module as claimed in claim 2, is characterized in that, the predetermined continuous shape of this light guiding graphics is C shape in a breach, U-shaped or Ω shape or arch.