CN202834995U - Flexible backlight module structure - Google Patents

Abstract

The utility model relates to a flexible formula backlight module structure, it includes: the light source module and the flexible light guide plate. The flexible light guide plate has a light incident surface, a light reflecting surface and a light emitting surface. The combination of the light incident surface of the flexible light guide plate and the direct optical coupling of the light source module enables the incident light of the light source module to be completely coupled into the flexible light guide plate, thereby reducing the light loss rate and improving the light use efficiency. The light emitted from the light source is reflected to the light emitting surface by the reflecting surface and is reflected by the flexible light guide plate.

Description

Flexible backlight module structure

technical field

The utility model relates to a flexible backlight module structure, in particular to a flexible backlight module structure applied to the backlight module. the

Background technique

Liquid crystal display is a kind of display widely used in the market at present, and its application range includes mobile phone screen, notebook computer, digital camera, etc. Generally speaking, a liquid crystal display panel and a backlight module are two important components constituting a liquid crystal display. Among them, the liquid crystal display panel is responsible for color presentation, but since the liquid crystal display panel itself does not have the function of emitting light, it is necessary to configure a backlight module behind the liquid crystal display panel, and the backlight module can provide sufficient light source to make the liquid crystal display display. out the image. the

Most of the currently actively developed large-size displays are used for outdoor advertising, such as displays on the walls of large buildings. When making displays for large outdoor advertisements, if you face irregularly shaped exterior walls, you need to make multiple small displays first, and then join each other to form a large display. However, such a step of manufacturing a small display first and then bonding will affect the production cost and time of a large display. As for the small-sized display, the scope of application is also limited due to the limitation of the standard shape. the

A flexible backlight module as disclosed in Taiwan Invention Patent No. I270724 "Flexible Backlight Module and Its Manufacturing System" includes a flexible board with a plurality of grooves; at least one light guide element with Arranged in the groove, the light guide element can provide light to emit from the opening of the groove; and an upper soft board, which covers the lower soft board, and the upper soft board can receive the light emitted from the groove, and finally the upper soft board Soft board shot. the

In the above-mentioned prior art, the backlight module can be bent due to the flexible property of the flexible flexible board, so the backlight module can fit objects with irregular shapes, thus simplifying the manufacturing steps of large-scale displays. However, the backlight module uses a light guide material to couple the light emitted by the light source into the backlight module. Therefore, the light emitted by the light source may cause light leakage during the optical coupling process, which affects the overall performance of the backlight module. the

It can be seen that the above-mentioned existing flexible backlight module obviously still has inconveniences and defects in structure and use, and needs to be further improved. Therefore, how to create a new type of flexible backlight module structure has become a goal that needs to be improved in the current industry. the

In view of the above-mentioned defects existing in the existing flexible backlight module, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a new type of flexible backlight module. The flexible backlight module structure of the present invention can improve the general existing flexible backlight module and make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created. the

Contents of the invention

The purpose of this utility model is to overcome the defects existing in the existing flexible backlight module structure, and provide a flexible backlight module structure with a new structure. The technical problem to be solved is to make the flexible light guide plate The light incident surface is integrally formed and optically coupled with the light source module, so the assembly steps and components of the flexible backlight module can be simplified, making it more suitable for practical use. the

Another purpose of the present utility model is to overcome the defects existing in the existing flexible backlight module structure and provide a flexible backlight module structure with a new structure. The technical problem to be solved is to make the light source provided by the light source module It can be fully coupled into the flexible light guide plate, which can avoid light leakage and increase the luminous efficiency of the flexible backlight module, so it is more suitable for practical use. the

Another object of the present invention is to provide a novel structure of flexible backlight module structure, the technical problem to be solved is that the light source provided by the light source module can be completely coupled into the flexible light guide plate to avoid light leakage And increase the luminous efficiency of the flexible backlight module, so it is more suitable for practical use. the

The purpose of this utility model and the solution to its technical problems are achieved by adopting the following technical solutions. A flexible backlight module structure proposed according to the utility model includes: a light source module and a flexible light guide plate, the flexible light guide plate has a light incident surface, a reflection surface and a light exit surface, and The light incident surface is directly optically coupled with the light source module. the

In the aforementioned flexible backlight module structure, the light source module is a cold cathode tube light source module or a light emitting diode light source module. the

In the aforementioned flexible backlight module structure, the flexible light guide plate is in the shape of a plate or a strip. the

In the aforementioned flexible backlight module structure, the flexible light guide plate is made of silica gel or epoxy resin. the

In the aforementioned flexible backlight module structure, the reflective surface has multiple reflective structures. the

In the aforementioned flexible backlight module structure, the reflective surface is formed with a plurality of reflective protrusions or a metal reflective layer. the

In the aforementioned flexible backlight module structure, a plurality of micro-lenses are formed on the light-emitting surface. the

In the aforementioned flexible backlight module structure, there are multiple microstructures on the light-emitting surface. the

In the aforementioned flexible backlight module structure, the reflective surface has multiple reflective structures, and the light-emitting surface has multiple microstructures. the

Compared with the prior art, the utility model has obvious advantages and beneficial effects. It can be seen from the above technical content that in order to achieve the above purpose, the utility model provides a flexible backlight module structure, which includes: a light source module and a flexible light guide plate, the flexible light guide plate has a light incident surface , a reflective surface and a light emitting surface, and the light incident surface is closely attached to the light source module. the

To sum up, the present invention relates to a flexible backlight module structure, which includes: a light source module and a flexible light guide plate. Wherein the flexible light guide plate has a light incident surface, a reflection surface and a light exit surface. The combination of the light incident surface of the flexible light guide plate and the direct optical coupling of the light source module enables the incident light of the light source module to be completely coupled into the flexible light guide plate, thereby reducing the light refractive index and improving light use efficiency. After the incident light enters the flexible light guide plate, it is reflected by the reflective surface to the light output surface to emit light. Since the flexible light guide plate has the characteristic of flexibility, it can be bent according to actual needs, thus making the application range wider. The utility model has the above-mentioned many advantages and practical value, it has great improvement no matter in product structure or function, has remarkable progress in technology, and has produced easy-to-use and practical effects, and is more flexible than the existing ones. The type backlight module has enhanced outstanding functions, so it is more suitable for practical use, and it is a novel, progressive and practical new design. the

By means of the above technical solution, the flexible backlight module structure of the present invention has at least the following advantages and beneficial effects:

1. The light source module of the present invention is directly coupled with the light guide plate, so that the light loss rate is effectively reduced, and the luminous intensity of the backlight module is increased. the

2. The utility model simplifies the assembly steps and components, so that the manufacturing cost of the backlight module is reduced. the

3. The flexible backlight module of the present invention can be bent according to usage requirements, thus increasing the applicability. the

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows. the

Description of drawings

FIG. 1 is a perspective view of a preferred embodiment of the structure of the flexible backlight module of the present invention. the

FIG. 2 is a perspective view of another embodiment of the structure of the flexible backlight module of the present invention. the

Fig. 3 is a cross-sectional view along line A-A in Fig. 2 . the

FIG. 4 is a cross-sectional view of a third embodiment of the structure of the flexible backlight module of the present invention. the

FIG. 5 is a cross-sectional view of a fourth embodiment of the structure of the flexible backlight module of the present invention. the

10: Flexible backlight module structure 20: Light source module

30: Flexible light guide plate 31: Light incident surface

32: Reflective surface 321: Reflective structure

322: Metal reflective layer 33: Light-emitting surface

331: Microstructure

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the invention, the specific implementation, structure, Features and their functions are described in detail below. the

The aforementioned and other technical contents, features and effects of the present utility model will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation, one can get a deeper and more specific understanding of the technical means and effects of the utility model to achieve the intended purpose, but the attached drawings are only for reference and description, and are not used to explain the present invention. Utility models are restricted. the

Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is a perspective view of a preferred embodiment of the utility model flexible backlight module structure, and Fig. 2 is a perspective view of another embodiment of the utility model flexible backlight module structure Perspective view, Fig. 3 is a cross-sectional view along the section line A-A in Fig. 2 . The flexible backlight module structure 10 of the preferred embodiment of the present invention includes: a light source module 20 and a flexible light guide plate 30 . the

The above light source module 20 can be a cold cathode tube light source module 20 or a light emitting diode light source module 20 . When the cold cathode tube light source module 20 is used, a line of light source will be provided. When a single LED light source module 20 is used, a point light source can be provided, and if multiple LED light source modules 20 are used simultaneously, a line light source can also be formed. the

The above-mentioned flexible light guide plate 30 can be in the shape of a strip or a plate, and each has a light incident surface 31, a reflective surface 32 and a light exit surface 33, and the material of the flexible light guide plate 30 can be a Flexible light guide material, a silica gel, an epoxy resin or a mixture of a silica gel and an epoxy resin. the

The combination of the light incident surface 31 of the flexible light guide plate 30 and the light source module 20 by direct optical coupling, for example, is combined by integrally molding silica gel and the light source module 20 by mold injection molding. the

Due to the integrated design of the light incident surface 31 and the light source module 20 , the components in the flexible backlight module 10 are simplified and the overall manufacturing cost is reduced. At the same time, since the light incident surface 31 and the light source module 20 are tightly bonded without a medium, the light emitted from the light source module 20 can be completely coupled into the flexible light guide plate 30 after passing through the light incident surface 31 . To avoid light leakage and light loss, and further increase the luminous efficiency of the flexible backlight module 10 . the

When the incident light of the light source module 20 enters the strip-shaped or plate-shaped flexible light guide plate 30 through the light-incident surface 31 , it is reflected to the light-emitting surface 33 by the reflective surface 32 to emit light. And the reflective surface 32 can have multiple reflective structures 321, for example: multiple reflective protrusions, multiple conical protrusions, multiple square dot structures, multiple irregular dot structures, grooves, grooves... wait. The arrangement of multiple reflective structures 321 can help to control the reflection angle of the incident light, so that all the incident light can be reflected to the light-emitting surface 33 . the

At the same time, the light-emitting surface 33 of the above-mentioned flexible light guide plate 30 can be provided with multiple microstructures 331, such as multiple micro-lenses, multiple grooves, multiple light-collecting prisms, multiple point-shaped protrusions... wait. The plurality of microstructures 331 are used to regulate the light from the reflective surface 32, and by the action of the plurality of microstructures 331, it can be used to regulate the exit angle of the light. The light passing through the light-emitting surface 33 of the flexible light guide plate 30 can exhibit the effect of uniform or concentrated light. the

When the flexible light guide plate 30 is strip-shaped, it can be applied to a small-sized flexible backlight module structure 10 . And when the flexible light guide plate 30 is plate-shaped, it can be applied to the large flexible backlight module structure 10 . And because they are all flexible, they can be bent and deformed according to actual needs, and can even fit objects with irregular shapes without being limited by their shapes, thus increasing their applicability. the

Please refer to FIG. 4 , which is a cross-sectional view of the third embodiment of the structure of the flexible backlight module of the present invention. The reflective surface 32 of the flexible light guide plate 30 in the third embodiment of the present invention can be formed with a metal reflective layer 322 to increase the light output of the light output surface. the

Please refer to FIG. 5 , which is a cross-sectional view of the fourth embodiment of the structure of the flexible backlight module of the present invention. In the fourth embodiment of the present invention, since the flexible light guide plate 30 has a flexible property, the flexible backlight module 10 can be applied to bending deformation. And when the flexible light guide plate 30 is formed into a curved shape, the reflective surface 32 and the light-emitting surface 33 thereof will both be curved at the same time. the

In order to avoid incident light from the light source module 20 , the light path is distorted due to the curved shape formed by the reflective surface 32 and the light-emitting surface 33 , resulting in a problem of weakening light source intensity in areas far away from the light source module 20 . The reflective surface 32 and the light-emitting surface 33 of the flexible light guide plate 30 can be provided with a plurality of reflective structures 321 and a plurality of microstructures 331 respectively. the

Through the arrangement of multiple reflective structures 321 and multiple microstructures 331, the incident light is not affected by the bending of the flexible light guide plate 30, and can be evenly distributed in the overall flexible backlight module structure 10, thereby producing an optimal luminous efficiency. Therefore, the flexible backlight module structure 10 can be bent freely according to actual application requirements, and still provide the best luminous efficiency stably. the

The multiple reflective structures 321 and metal reflective layers 322 on the reflective surface 32 of the above-mentioned flexible light guide plate 30, as well as the multiple microstructures 331 on the light-emitting surface 33 of the flexible light guide plate 30, will all be based on actual conditions. It needs to be selected and implemented to achieve the best effect. the

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those skilled in the art, without departing from the scope of the technical solution of the present utility model, may use the structure and technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the scope of this utility model The content of the technical solution of the utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model. the

Claims (9)

1. A flexible backlight module structure, characterized in that it comprises: a light source module; and A flexible light guide plate has a light incident surface, a reflective surface and a light exit surface, and the light incident surface is directly optically coupled with the light source module. 2. The flexible backlight module structure according to claim 1, wherein the light source module is a cold cathode tube light source module or a light emitting diode light source module. 3. The flexible backlight module structure according to claim 1, wherein the flexible light guide plate is in the shape of a plate or a strip. 4. The flexible backlight module structure according to claim 1, wherein the flexible light guide plate is made of silica gel or epoxy resin. 5. The flexible backlight module structure according to claim 1, wherein the reflective surface has a plurality of reflective structures. 6. The flexible backlight module structure according to claim 1, wherein the reflective surface is formed with a plurality of reflective protrusions or a metal reflective layer. 7. The flexible backlight module structure according to claim 1, wherein a plurality of micro-lenses are formed on the light-emitting surface. 8. The structure of the flexible backlight module according to claim 1, wherein the light emitting surface has a plurality of microstructures. 9. The flexible backlight module structure according to claim 1, wherein the reflective surface has a plurality of reflective structures, and the light-emitting surface has a plurality of microstructures. the

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