CN206210668U

CN206210668U - A kind of open-cell lateral leakage protection light guide film

Info

Publication number: CN206210668U
Application number: CN201621082519.XU
Authority: CN
Inventors: 丁进新; 曹传春; 冯杰
Original assignee: SHENZHEN HUICHUANGDA TECHNOLOGY Co Ltd
Current assignee: SHENZHEN HUICHUANGDA TECHNOLOGY Co Ltd
Priority date: 2016-09-27
Filing date: 2016-09-27
Publication date: 2017-05-31
Anticipated expiration: 2026-09-27

Abstract

The utility model discloses a kind of open-cell lateral leakage protection light guide film, and light guiding film needs to be provided with the position of shading the dim light hole more than two rows being staggered, distance of the dim light hole size more than clear band between adjacent row dim light hole for light guiding film main body surrounding.The utility model needs to be provided with dim light hole at the position of shading in light guiding film surrounding, can play a part of dim light, shading, its simple structure, it is easy to process, reflectance coating, photomask and light guiding film can be processed into onesize, trilamellar membrane is processed together, built-up time can be reduced, processing cost is reduced.

Description

A kind of open-cell lateral leakage protection light guide film

Technical field

The utility model discloses a kind of light guiding film, particularly a kind of open-cell lateral leakage protection light guide film, belongs to electronic product Accessory technical field.

Background technology

With continuing to develop for keyboard technique, backlight keyboard (or being illuminated keyboard) is gradually existed with its superior performance Using more and more extensive in people's life.Backlight keyboard of the prior art is all one backlight of setting below the button of keyboard Module, it is luminous by backlight module, the void region on keyboard is illuminated, so as to produce illumination effect.Current backlight module leads to Often all it is to use light guiding film, the light guiding film back side is provided with reflectance coating, and light guiding film front is provided with photomask, because light guiding film was being used Cheng Zhong, its four weekly assembly generation light leak, and the using effect of whole keyboard is influenceed, therefore, backlight module manufacturer is in production backlight mould During group, the ratio light guiding film for generally designing reflectance coating and photomask is big, during assembling, reflectance coating and photomask surrounding is enclosed in into one Rise, light guiding film is enclosed between reflectance coating and photomask, so that light guiding film is blocked by reflectance coating and photomask, to prevent side Light leak, but, the cause not of uniform size of reflectance coating, photomask and light guiding film when either product cuts or encapsulates, can all be produced Very burden, makes production and processing not enough facilitate, so as to the shortcoming for causing production cost higher.

The content of the invention

Complicated, production cost shortcoming high, this reality for backlight module processing technology of the prior art mentioned above With a kind of new open-cell lateral leakage protection light guide film of new offer, it needs to offer two at the position of shading in light guiding film surrounding It is more than row that staggered dim light hole, can play a part of dim light, shading.

The utility model solve its technical problem use technical scheme be：A kind of open-cell lateral leakage protection light guide film, leads Light film needs to be provided with the position of shading the dim light hole more than two rows being staggered for light guiding film main body surrounding, and dim light hole size is big The distance of clear band between adjacent row dim light hole.

The technical scheme that the utility model solves the use of its technical problem is further comprised：

Described dim light hole opens up two rows, three rows or four rows.

Described dim light hole is circular, triangle or bar shaped.

Described light guiding film main body uses PC films.

The beneficial effects of the utility model are：The utility model needs to be provided with dim light at the position of shading in light guiding film surrounding Hole, can play a part of dim light, shading, and its simple structure is easy to process, can be processed into reflectance coating, photomask and light guiding film Onesize, trilamellar membrane is processed together, can reduce built-up time, reduces processing cost.

The utility model is described further below in conjunction with the drawings and specific embodiments.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment one.

Fig. 2 is the A partial enlargement structural representations of Fig. 1.

Fig. 3 is the structural representation of the utility model embodiment two.

Fig. 4 is the B partial enlargement structural representations of Fig. 3.

In figure, 1- light guiding film main bodys, 2- dim lights hole, 3- clear bands.

Specific embodiment

The present embodiment is the utility model preferred embodiment, and other all its principles and basic structure are identical with the present embodiment Or it is approximate, within the utility model protection domain.

Accompanying drawing 1 to accompanying drawing 4 is refer to, is predominantly needed at the position of shading in the surrounding of light guiding film main body 1 in the present embodiment Dim light hole 2 is offered, in the present embodiment, dim light hole 2 offers more than two rows, dim light holes 2 more than two rows is staggered, dim light The size in hole 2 is greater than the distance of clear band 3 between adjacent row dim light hole, the sky for alloing it fully to block another row's dim light hole White section 3, reaches more preferable shaded effect, and in the present embodiment, dim light hole 2 can open up two rows, three rows or four rows.In the present embodiment, Light guiding film main body 1 uses PC films, during specific implementation, it is also possible to need to use the film of other materials according to actual needs, dim light hole 2 is adopted Formed with clicking technique.

In the utility model, according to the difference of incident light mode, it is divided into two kinds of multi-forms：One kind is incident light from centre Light guiding film main body 1 (refer to accompanying drawing 1 and accompanying drawing 2) is irradiated into, then needs to be densely covered with the side of shading in the surrounding of light guiding film main body 1 Dim light hole 2 (for surrounding is both provided with dim light hole in the present embodiment and accompanying drawing, during specific implementation, if only one while or at two, Or three sides need shading, then dim light hole is densely covered with the side of shading)；Another kind is that incident light is irradiated into from surrounding and leads Light film main body 1 (refer to accompanying drawing 3 and accompanying drawing 4), then dim light hole 2 is provided with certain interval, that is, have and certain be not provided with dim light The region in hole, for being shining into for incident light, if only one while or at two, or three sides need shading, also allow for incident light from Do not need the side of shading to inject, dim light hole is densely covered with the side of shading.

In the present embodiment, it is circle, triangle, bar shaped or other shapes that dim light hole 3 can open up.

When in use, light is irradiated to when at the position of dim light hole 2 the utility model, is projected from the edge of dim light hole 2, light Each outgoing, incident process can all produce substantial amounts of decay, so as to reach the effect of dim light, shading.

The utility model needs to offer dim light hole 2 at the position of shading in light guiding film surrounding, can play dim light, shading Effect, its simple structure is easy to process, can be processed into reflectance coating, photomask and light guiding film onesize, and trilamellar membrane adds together Work, can reduce built-up time, reduce processing cost.

Claims

1. a kind of open-cell lateral leakage protection light guide film, it is characterized in that：Described light guiding film needs shading for light guiding film main body surrounding Position at be provided with the dim light hole more than two rows being staggered, dim light hole size more than between adjacent row dim light hole clear band away from From.

2. open-cell lateral leakage protection light guide film according to claim 1, it is characterized in that：Described dim light hole open up two rows, Three rows or four rows.

3. open-cell lateral leakage protection light guide film according to claim 1, it is characterized in that：Described dim light hole is circle, three Angular or bar shaped.

4. open-cell lateral leakage protection light guide film according to claim 1, it is characterized in that：Described light guiding film main body uses PC Film.