WO2020094024A1

WO2020094024A1 - Embedded light emitting structure

Info

Publication number: WO2020094024A1
Application number: PCT/CN2019/115795
Authority: WO
Inventors: 马飞
Original assignee: 马飞
Priority date: 2018-01-18
Filing date: 2019-11-05
Publication date: 2020-05-14
Also published as: CN209045108U; CN109506165A; CN109506165B; CN108253346A; CN210118661U; CN109256057A

Abstract

An embedded light emitting structure, comprising a light source (1), a light guide plate (2), and a light intercepting member (3). By providing a light condensing groove (11) on the light guide plate (2), light transmitted laterally in the light guide plate (2) are intercepted out of the light guide plate (2) in high proportion, so that in the process of passing through the light condensing groove (11), the light transmitted laterally in the light guide plate (2) are intercepted into invisible light projected in two directions, i.e., laterally penetrating through a width direction of the light condensing groove (11) in the original direction and entering the light guide plate (2) again to maintain the lateral transmission, and laterally penetrating through a thickness direction of the light guide plate (2) and being not able to enter the light guide plate (2) again for transmission; and the invisible light projected from the light condensing groove (11) are intercepted and received by using the light intercepting member (3) connected to the light condensing groove (11), and converted into high quality visible light having a corresponding light emitting pattern in a longitudinal direction. The structure is simple, the assembly is fast, the overall size is thin and delicate, and the light emitting effect is good.

Description

Embedded light-emitting structure

Technical field

The invention relates to the field of luminous identification plates, in particular to an embedded luminous structure.

Background technique

The existing light-emitting logo based on a transparent plate engraves the pattern or text to be displayed on the surface of the transparent plate, and emits light into the interior of the transparent plate using a light source provided on the side of the transparent plate to make the carved pattern emit light. This kind of luminous sign uses engraved lines to destroy the flat smoothness of the surface of the transparent plate, that is, to destroy the structure of the total reflection transmission inside the transparent plate, and through the many small convex and concave structures on the engraved lines, the light with high reflectance in the transparent plate is transmitted in a small amount laterally The light diffuses out of the transparent plate (the dotted arrow shown in Figure 1A), and most of the light enters or continues to travel in the transparent direction along the original direction (the solid arrow shown in Figure 1B) ), And does not scatter in the longitudinal direction other than the light guide plate. And a small amount of longitudinal light scattered out of the transparent plate through the carved lines is scattered light within 360 degrees, the astigmatism is not concentrated, most of it is scattered into the surrounding space, and becomes invisible light. The visual brightness of the carved lines at a certain angle is very weak, only It is suitable for dark environment, such as the "export" of movie theaters, because the transparent plate and the engraving pattern on it have poor light absorption, the engraving pattern can only weakly emit light compared to the transparent plate itself, and the overall structural application field is very narrow, visual The effect lacks texture.

Other traditional advertising light-emitting signs are mostly vertical box structures, which are composed of a bottom plate, an LED light source fixed on the bottom plate, a surrounding edge, and a light-transmitting cover plate. The LED light source is fixed on the bottom plate according to a certain density, and the light-emitting direction is toward the light transmission Cover plate. When such a structure is manufactured, waste and waste materials are time-consuming and the process is cumbersome. This structure is because the light source is placed in the box, which leads to the existing luminous signs to achieve uniform light emission of the light-transmitting board without obvious light spots. The luminous effect can only be improved by increasing the number and density of LEDs or increasing the thickness of the box. At the same time, because the light source is placed in the box, the size of the box is limited, and it is impossible to make it very small. In short, the scope of application is limited.

Summary of the invention

The purpose of the present invention is to provide an embedded light-emitting structure, which is intended to solve the problem of converting the high conversion rate of light transmitted horizontally in the light guide plate into high-quality light projected longitudinally with a corresponding light-emitting pattern, having a simple structure and thickness Thin, fast assembly and good luminous effect.

Based on the above objective, an embedded light-emitting structure provided by the present invention includes a light source, a light guide plate and a light intercepting member;

The light guide plate is provided with a plurality of installation grooves. The installation groove is at least one of a hollow groove structure penetrating the thickness direction of the light guide plate and a non-hollow groove structure not penetrating the thickness direction of the light guide plate. The cross section of the light plate is at least one of a cross section that penetrates the thickness direction of the light guide plate and a cross section that does not penetrate the thickness direction of the light guide plate, and includes a side cross section around the outline of the light guide plate and a groove of the mounting groove Side wall cross section; the cross section provided with the light source is a light incident cross section, the light source is connected with the light incident cross section, so that the light emitted by the light source can enter the light guide plate through the light cross section to laterally transmit ; The installation groove provided with the light intercepting member is a light collecting groove, and the light intercepting member is connected to the light collecting groove, so that the light intercepting member can intercept and receive the light transmitted laterally in the light guide plate In the process of the light collecting groove, it is divided into two projection directions of light that penetrate the width direction of the light collecting groove and can enter the light guide plate again and pass through the thickness direction of the light guide plate and cannot enter the light guide plate again. At least one kind of light; the light source emits light from the light cross section into the light guide plate for lateral transmission, and transversely illuminates all groove side wall cross sections of the light collecting groove, including direct and / or indirect irradiation, The cross-sections of all the groove sidewalls around the light-concentrating groove project light into the light-cutting groove in a concentrated manner, the light-cutting piece intercepts and receives the projected light, the light-cutting piece strongly emits light, and the strongly luminous The light-cutting member displays a light-emitting pattern in the longitudinal direction (that is, a pattern observed with a viewing angle through the thickness direction of the light guide plate), compared with a light-emitting pattern consisting of a light-concentrating groove that is not in contact with the light-cutting member. And the luminous quality has been greatly improved; the light-cutting member radiates light through the groove side wall section of the condensing groove that is connected to it, and then feeds back into the light guide plate to laterally transmit and laterally illuminate the other condensing groove and The light-cutting parts, the light-cutting parts at different positions complement each other, so as to ensure the luminous brightness balance and the luminous quality.

Among them, the light guide plate is a transparent material, and the shape of the light guide plate (including a flat plate or a curved plate) and corresponding parameters can ensure that the light transmits high reflectivity inside the light guide plate; the thickness direction of the light guide plate includes vertical penetration and non-vertical oblique In the direction of penetration; contacting includes contacting contacting and / or non-contacting contacting; the connection of the light intercepting member and the concentrating groove means that the groove side wall cross section of the concentrating groove emits light directly to the light intercepting The light intercepting member can receive the light projected from the cross section of the side wall of the groove; the connection of the light source to the light incident cross section means that the light source can emit light into the light guide plate through the light cross section and proceed High reflectivity lateral transmission; the light from the light incident cross section entering the light guide plate laterally illuminating the groove side wall cross section means that there is a linear distance between the light incident cross section in the light guide plate and the corresponding groove side wall cross section. It can be directly transmitted to the groove side wall section through a straight path; the indirect illumination of the light beam side wall section refers to that there is no linear distance between the light section and the corresponding groove side wall section, the light passes through the light guide Indirect transmission section of the groove side wall to the inner reflection and scattering.

Further, the light source is a band-shaped LED light source, and the band-shaped LED light source is arranged along and connected to the lateral extension direction of the light incident cross-section, and the light incident cross-section is located at a side cross-section around the outline of the light guide plate ;or,

The light incident cross section is located at the groove side wall cross section of the installation groove, the light source is disposed in the installation groove, and the lateral light is emitted toward the light entrance cross section and the light collection groove, and the light source emits light directly State the light cross section; or,

The light source is disposed at the bottom of the groove of the mounting groove, and emits light upward longitudinally toward the notch, and the light source emits light indirectly illuminating the light by directly scattering light toward the incident light cross section and reflecting through the inner wall of the mounting groove At least one of the two projection methods of the incident light section projects light onto the incident light section; or,

The light source is disposed at the slot of the mounting slot, and emits light vertically downward toward the space inside the slot of the mounting slot, and the light source emits light by directly scattering light toward the incident light cross section and reflecting through the inner wall of the mounting slot Indirectly illuminating at least one of the two projection methods of the light incident cross-section to project light onto the light incident cross-section;

The light emitted by the light source enters the light guide plate and is transmitted.

Further, the light intercepting member and the light collecting groove are in a form that at least a part of the light intercepting member is embedded in the light collecting groove, the side end surface of the light intercepting member and the light collecting groove The cross-sections of the side walls of the groove are docked; the light intercepting member intercepts and receives at least a portion of the original (the light collecting groove is not connected to the light intercepting member) penetrates the width direction of the light collecting groove and can enter the light guide plate again to transmit light and penetrate The thickness direction of the light plate cannot enter the light transmitted inside the light guide plate again; or,

The light intercepting member is disposed at the notch of the light collecting groove, and is connected to the light collecting groove through the bottom of the light intercepting member; The light rays at the bottom of the light intercepting member and the light rays reflected from the inner wall of the light collecting groove to the bottom of the light intercepting member;

The light-cutting member emits light.

Where, the butt-side end face of the light-cutting piece butts the groove sidewall cross-section of the concentrating groove means that the projection of the groove-side wall section on the butt-cutting piece side end face intersects with the area of the side end face so that The side surface of the optical member can be directly irradiated by the light emitted from the side wall section of the groove.

Further, at least a part of the light intercepting member is embedded in the light concentrating groove, and the side wall section of the light concentrating groove and the side end of the light intercepting member are in contact butt joint (ie, fitting butt joint) or Non-contact docking (that is, there is a certain distance between the two);

The cross-section of the groove side wall of the condensing groove is in contact with all the side ends of the light-cutting member; or,

A cross section of the groove side wall of the condensing groove is in contact with a part of the side ends of the light intercepting member;

Further, the light intercepting member is a non-transparent light-transmitting material; or,

The light-cutting member is a transparent material; or,

The light intercepting member is a combination structure of a non-transparent light-transmitting material and a transparent material; or,

The light intercepting member is a combination structure of multiple light-transmitting materials; or,

The light intercepting member is a combination structure of a non-transparent light-transmitting material and a non-light-transmitting material; or,

The light intercepting member is a combination structure of a transparent material and a non-transparent material;

The light-transmitting materials include transparent materials and non-transparent light-transmitting materials. The light-transmitting materials include hard solid materials or soft solid materials or liquid materials or materials that can be converted from liquid to solid (including epoxy) Resin or paint, etc.).

Further, the light incident cross section is located at the periphery of the groove side wall cross section of the light concentrating groove on the light guide plate; or, the light incident cross section is located in the light concentrating groove;

A part of the groove side wall section of the light condensing groove is directly irradiated with light transmitted laterally from the light entrance section into the light guide plate; or, all the groove side wall sections of the light condensing groove are entered from the light entrance section The light transmitted horizontally in the light guide plate is directly irradiated.

Further, it also includes an outline light emitting element, the outline light emitting element is disposed on the periphery of the periphery of the outline of the light guide plate, the inner side end face of the outline light emitting element is butted with the side cross section of the outline of the light guide plate, the The light transmitted laterally inside the light plate projects light to the inner side end surface of the outline light-emitting member butted to the light guide plate through a side section of the periphery of the outline of the light guide plate, the outline light-emitting element receives the projected light, and the outline light-emitting element Light emission, the outline light-emitting member shows that the light emission pattern in the longitudinal direction matches the outline shape of the light guide plate, and effectively utilizes the light leaked from the side cross section around the outline of the light guide plate.

Wherein, the profile light-emitting member and the light-cutting member are made of similar materials and light-emitting effects.

Further, the light-concentrating groove is provided at a middle position of the light guide plate, the light source and the light incident cross-section are provided at the periphery of the light-concentrating groove, and the light intercepting member is a hollow-out outline structure, At least a portion of the light-cutting member is embedded in the light-concentrating groove, and the outer side end surface of the periphery of the light-cutting member is butted with the cross-section of the groove side wall of the light-concentrating groove; or,

The light-cutting member is disposed at the notch of the light-concentrating groove, and the light-cutting member is connected to the light-concentrating groove;

The projection of the hollowed area on the light-cutting member onto the area of the light-concentrating groove is included in the area of the light-concentrating groove (that is, the hollowed-out area on the light-cutting member is smaller than the area of the groove of the light-concentrating groove). The light source emits light and enters the inside of the light guide plate through the light incident cross section, and light rays are transmitted in a high reflectivity inside the light guide plate between the light incident cross section and the groove side wall cross section of the light condensing groove, and are collected from the light The groove side wall section of the groove emits the light guide plate to project light into the light concentrating groove, the light intercepting member receives light projected from the groove side wall section of the light concentrating groove, and the light intercepting member is longitudinal The luminous pattern in the direction matches the outline shape of the light-concentrating groove, and the light-concentrating groove evenly radiates light to the outside of the slot opening.

Further, it also includes a surface decoration layer, and the surface decoration layer is provided on at least one of the two sides of the light guide plate, and the surface decoration layer is used to set off the luminous effect and protect the surface of the light guide plate.

Further, it also includes a frame, and the outer edge of the periphery of the light guide plate is provided in the frame; or,

At least one of the light source that is in contact with the peripheral profile side cross-section of the light guide plate and the peripheral outer edge of the finish layer is disposed in the housing together with the outer edge of the peripheral edge of the light guide plate.

Using the above technical solution, the positive effect of the technical solution of the embedded light emitting structure provided by the present invention:

It is well known that light enters the interior of the plate from the side end surface of the periphery of the transparent plate (glass plate, plexiglass plate) and transmits with high reflectance along the lateral direction parallel to the surface of the plate. After testing, 1), the light transmitted in the transparent plate is like the water flowing inside the plate. As long as the water can flow, the light can reach, even in the places and corners where the light of the light source cannot be irradiated directly; 2) The depth of the light collecting groove is proportional to the brightness of the connected light intercepting member. The deeper the light collecting groove, the larger the area of the groove wall, and the more light intercepted from the inside of the light guide plate. Similarly, the light intercepting member The deeper it is embedded in the condenser groove, the higher the luminous intensity. 3) For the same light source, the closer the distance between the light source and the light interceptor, the higher the brightness of the light interceptor.

Using the above phenomenon, a light collecting groove is provided on the light guide plate. In order to fully utilize the unique light intercepting characteristics of the light collecting groove, a light intercepting member is provided to be connected to the light collecting groove. Compared with the existing technology, it has the following positive effects:

1. Convert the invisible light intercepted by the condenser to high-quality visible light, with high conversion rate and utilization rate.

A light-concentrating groove is provided on the light guide plate, a high proportion of light transmitted in the light guide plate is taken out of the light guide plate, and a large proportion of the light emitted from the inside of the light guide plate is blocked by the light intercepting member connected to the light collecting groove The visible light (that is, the side wall of the condensing groove that is not visible from the front of the light guide plate, because the groove side wall of the concentrating groove is generally vertical and vertical) is converted into visible light in a high proportion, and shows the matching The luminous pattern, in contrast to the very weak visible light emitted by the condensing groove itself, has a breakthrough in the luminous intensity and quality of the light interceptor. At the same time, the light emitted by the light intercepting member can be fed back into the light guide plate through the inner wall of the groove of the light collection groove and continue to be laterally transmitted to the light collection groove at other positions, so that the light between the light collection grooves at different positions on the light guide plate is complementary and concentrated. The cross section of the groove side wall in the optical groove can both emit light and enter light, and has a multiplexing function.

Observing the light collecting groove from the front angle of the light guide plate, in theory, the cross section of the groove side wall of the light collecting groove cannot be seen (because the cross section of the groove side wall is vertical), the light transmitted laterally in the light guide plate passes through the light collecting The process of the groove is intercepted into the width of the concentrating groove in the original direction and enters the inside of the light guide plate again to continue to maintain lateral transmission (as shown by the solid arrow in FIG. 1B) and to penetrate the thickness direction of the light guide plate. Re-enter the two directions of projected light transmitted inside the light guide plate (as shown by the dashed arrow in Figure 1B), the former of which accounts for a much higher proportion than the latter. In theory, both types of light are invisible rays. Under the premise of setting the light-cutting part, visually, we can only see that the light collecting groove scatters very weak light, which comes from the edge ridgeline of the groove and the intersecting ridgeline between the inner walls of the groove (in the ideal state); After the light trough is connected to the light intercepting member, at least one of the two types of invisible light is intercepted and received by the light intercepting member connected to the light collecting trough, so that the light intercepting member emits light strongly.

2. The structure is simple and novel: all the inner walls (including the side walls and the bottom surface of the groove) of the surrounding of the condensing trough are concentrated to project light into the space of the concentrating trough. , So that the light intercepting member connected to it is projected by light from multiple directions, which greatly increases the luminous intensity and luminous quality of the light intercepting member, and the light source does not need to be set in the concentrating groove, so that the light intercepting member has no size limitation Can be infinitely narrow.

3. Various effects: When the light-cutting part has a hollow-out outline structure and is connected with the corresponding light-concentrating groove, the light-concentrating groove can spread light evenly to the outside of the groove while displaying the light-emitting pattern.

4. Convenient implementation: Compared with the traditional luminous sign processing method and installation process (mainly adhesive bonding), in this solution, the installation method of embedding the light-cutting piece in the concentrating groove and placing the light source in the installation groove make the light-cutting piece The installation and installation of the light source is extremely simple and fast, without the need for bonding and fixing; and according to the specific needs of each light-cutting member, the light source can be flexibly set around the condenser groove where the different light-cutting members are located: multiple light-cutting The piece can correspond to one set of light sources; multiple sets of light sources correspond to one light-cutting piece; the light-emitting effect of different light colors can be realized by the setting of the light source; the light-emitting effect of the gradual effect can be realized by the setting of the light source.

BRIEF DESCRIPTION

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific embodiments or the description of the prior art. Obviously, the attached The drawings are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative labor, other drawings can be obtained based on these drawings.

1A is a schematic view of a partial cross-section optical path of a light guide plate with engraved lines on the surface;

1B is a schematic diagram of a partial cross-sectional optical path of a light collecting groove on a light guide plate when no light-cutting member is provided in the solution of the present invention;

2A is a schematic diagram of main components of a structure of an embedded light-emitting structure (displaying an "A" shaped light-emitting pattern) provided by an embodiment of the present invention;

FIG. 2B is a schematic view of the appearance and partial cutaway of the assembled structure of FIG. 2A;

FIG. 2C is a schematic diagram of the cross-sectional structure of the dotted line in FIG. 2B;

2D is a schematic diagram of the optical path corresponding to FIG. 2C;

2E is a schematic diagram of another cross-sectional structure similar to FIG. 2C;

2F is a schematic cross-sectional structure diagram of an embedded light-emitting structure (displaying an "A" -shaped light-emitting pattern) provided by an embodiment of the present invention;

2G and 2F are schematic diagrams of the light path provided by the light intercepting member provided at the slot to intercept and receive the projected light in the slot;

3A is a schematic diagram showing another cross-sectional structure of an "A" shaped light emitting pattern;

3B is a schematic diagram of another cross-sectional structure similar to FIG. 3A;

4A is a schematic diagram of main components of a structure of an embedded light-emitting structure (displaying an "A" shaped light-emitting pattern) according to an embodiment of the present invention;

4B is a schematic view of the appearance of the structure of FIG. 4A after assembly;

FIG. 4C is a schematic diagram of the cross-sectional structure of the dotted line in FIG. 4B;

5A is a schematic view of a structure of an embedded light-emitting structure (displaying an "A" -shaped light-emitting pattern) provided by an embodiment of the present invention;

FIG. 5B is a schematic diagram of the cross-sectional structure of the dotted line in FIG. 5A;

6A is a schematic view of a structure of an embedded light-emitting structure (displaying an "S" -shaped light-emitting pattern) provided by an embodiment of the present invention;

FIG. 6B is a schematic diagram of the cross-sectional structure of the dotted line in FIG. 6A;

6C is a schematic diagram of a cross-sectional structure similar to FIG. 6B;

6D is a schematic diagram of a cross-sectional structure similar to FIG. 6B;

6E is a schematic diagram of a cross-sectional structure similar to FIG. 6B;

7A is a schematic diagram of main components of a structure of an embedded light-emitting structure (a light-emitting pattern showing an "S" hollow outline) provided by an embodiment of the present invention;

7B is a schematic view of the appearance of the structure of FIG. 7A after assembly;

7C is a schematic diagram of the cross-sectional structure at the position of the broken line in FIG. 7B;

7D is a schematic cross-sectional structure diagram similar to the light-emitting pattern shown in FIG. 7C;

7E is a schematic diagram of a cross-sectional structure similar to the light-emitting pattern shown in FIG. 7C;

7F is a schematic diagram of a cross-sectional structure similar to FIG. 7E;

7G is a schematic diagram of a cross-sectional structure similar to FIG. 7E;

7H is a schematic diagram of a cross-sectional structure similar to the light-emitting pattern shown in FIG. 7C;

7I is a schematic diagram of a cross-sectional structure similar to FIG. 7H;

8A is a schematic diagram of main components of a structure of an embedded light-emitting structure (displaying an "S" line light-emitting pattern) according to an embodiment of the present invention;

8B is a schematic view of the appearance of the structure of FIG. 8A after assembly;

8C is a schematic view of an appearance of a structure of an embedded light-emitting structure (displaying an "S" line light-emitting pattern) provided by an embodiment of the present invention;

9A is a schematic view of an appearance of a structure of an embedded light-emitting structure (displaying a square light-concentrating space) provided by an embodiment of the present invention;

FIG. 9B is a schematic view of the structure of the light guide plate with a spliced structure similar to that of FIG. 9A;

9C is a schematic diagram of the cross-sectional structure at the position of the dotted line in FIG. 9A;

9D is a schematic view of the optical path of the cross-sectional structure at the position of the dotted line in FIG. 9A;

9E is a schematic diagram of another optical cross-section structure similar to FIG. 9C;

10A is a schematic diagram of another cross-sectional structure of an embedded light-emitting structure (showing a square condensing space) provided by an embodiment of the present invention;

10B is a schematic diagram of another cross-sectional structure similar to FIG. 10A;

10C is a schematic diagram of another cross-sectional structure similar to FIG. 10A;

10D is a schematic diagram of another cross-sectional structure similar to FIG. 10C.

Reference signs: 1. LED light source, 2. light guide plate, 3. non-transparent light-transmitting material light-cutting piece, 4. transparent material light-cutting piece, 5. mounting groove, 6. reflective layer, 7. light incident cross section , 8. Cross-section of the side wall of the light-concentrating groove, 9. Outline light-emitting parts, 10. Finishing layer, 11. Light-concentrating groove, 12. Frame body, 13. Bottom plate.

detailed description

The technical solutions of the present invention will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Example 1

As shown in FIGS. 2A, 2B, 2C, and 2D, this embodiment provides an embedded light-emitting structure that displays a character “A” -shaped light-emitting pattern, including: a light source 1, a light guide plate 2, and a light intercepting member 3.

A plurality of installation grooves provided on the light guide plate, and the installation groove used for setting and contacting the light intercepting member 3 is a light collecting groove 11.

The light-cutting member 3 is a semi-transparent or fog-like hard light-transmitting material, and a plate made of this material is milled and carved according to a design pattern (ie, "A" shape) by a CNC device; or the light-cutting member 3 is made of translucent or The fog-like hard strip-shaped light-transmitting adhesive strip is bent according to the shape of the design pattern after heating, and then cooled and shaped; or the light-cutting member 3 is composed of a translucent or fog-like soft strip-shaped translucent adhesive strip, which is embedded It is made by the process of directly bending and fixing molding in the light-concentrating groove; or, the "A" -shaped light-cutting member 3 can be poured into the "A" -shaped light-concentrating groove 11 by translucent or mist-like liquid epoxy resin material It is cured and cured, or the inner surface of the groove of the condensing groove 11 is coated with a liquid material with light transmission and light scattering effects.

The light source 1 is a band-shaped LED light source formed by soldering several LEDs on a flexible circuit board. The band-shaped LED light source 1 can be a monochromatic or multi-color LED band light source. The light guide plate 2 is made of transparent material and the surface can be Glossy or matte or coated surface. On the front side of the light guide plate 2 near the contour edge, a non-hollow U-shaped mounting groove 5 for the built-in LED light source 1 is provided, and then within the area surrounded by the circle of the mounting groove 5, a light-cutting member 3 is provided The character "A" shape of the non-hollow U-shaped light-condensing groove 11, the size of the notch and the lateral extension of the light-condensing groove 11 match the size and shape of the light intercepting member 3, and the depth of the light collecting groove 11 is not greater than the light intercepting member 3 Height of the side face. In this way, the cross section included on the light guide plate 2 includes a side cross section around the outline of the light guide plate 2, a groove side wall cross section of the light collecting groove 11 and the mounting groove 5. Place the band-shaped LED light source 1 in the mounting groove 5 in the outer circle. The band-shaped LED light source is arranged along the laterally extending direction of the side wall section of the groove. The light source 1 and the groove in the mounting groove 5 near the center of the light guide plate 2 are located The cross-section of the side wall is opposite, and the lateral light emission is directed to the cross-section of the side wall of the groove (that is, toward the "A" shaped light-gathering groove 11 on the light guide plate 2). The cross-section of the side wall of the groove is the light entrance cross-section 7, so that the strip-shaped LED light source 1 emits The light energy enters the light guide plate 2 through the light entrance section 7 for transmission, so that the ribbon-shaped LED light source 1 and the light entrance section 7 are connected, which can be non-contact connection or intimate contact contact; The light member 3 is embedded in the matching “A” shaped light collecting groove 11, and all groove side wall sections 8 of the light collecting groove 11 are attached to the side end surfaces of the “A” shaped light intercepting member 3 embedded in the groove of the light collecting groove 11 The light emitted from all the groove side wall sections 8 of the light-concentrating groove 11 in the light guide plate 2 can be completely intercepted and received by the side end surface of the "A" shaped light-cutting member 3, so that all the side end surfaces of the light-cutting member 3 are All groove side wall sections 8 of the concentrating groove 11 are butted (that is, a form of contact), in this case contact butt. Optionally, the light-cutting member 3 is completely embedded in the notch of the light-condensing groove 11, that is, the depth of the light-condensing groove 11 is greater than the height of the side end surface of the light-cutting member 3, and the groove side wall section 8 of the light-concentrating groove 11 is in the butted light-cutting member 3 The projection on the side end surface includes the area of the side end surface.

Optionally, the light guide plate 2 may be a non-flat curved light guide plate, and the shape and corresponding parameters of the light guide plate can ensure that light is transmitted inside the light guide plate 2 with high reflectivity.

When the band-shaped LED light source 1 built in the mounting groove 5 emits light, the light enters the light guide plate 2 from the light entrance section 7, as shown by the solid arrows in the light path diagram of FIG. 2D, and part of the light directly illuminates "A" laterally A part of the groove side wall section 8 of the condensing groove 11 of the shape is projected onto the side end surface of the light intercepting member 3 adhering and butted with the groove side wall section 8 to make the light intercepting member 3 emit light as a whole. The front and back sides of the light member 3 display an "A" shaped light-emitting pattern which is a mirror image of each other, and the other part of the groove side wall section 8 of the groove 11 that cannot be directly irradiated laterally by the light from the light source 1 is indirectly irradiated by the light in the light guide plate 2 At the same time, the light is projected toward the light-cutting member 3, and at the same time, it is irradiated by the light-cutting member 3 that emits light as a whole, so that the light enters the light guide plate 2 again through this part of the groove side wall section 8. Therefore, the groove side wall sections 8 at different positions are mutually irradiated with each other, as shown by the dashed arrow in FIG. 2D, the part of the board that cannot be directly irradiated by the light source 1 (in the middle surrounded by the "A" shaped condenser groove) is added The internal light flux of the triangular part) improves the luminous quality and brightness of the light-cutting member 3. After the light from the light source 1 enters the light guide plate 2, another part of the light continues to travel through the light guide plate 2 through the bottom surface of the condensing groove 11 and the bottom surface of the light guide plate 2, so that the light in the plate is evenly distributed and indirectly illuminates the light guide plate All corners and all cross sections within 2. Therefore, the light transmitted inside the light guide plate 2 irradiates all the groove side wall sections 8 of the condensing groove 11 laterally through direct or indirect irradiation, so that all the groove side wall sections 8 around the light collecting groove 11 are concentrated toward the condensing Light is projected in the light slot, and the light intercepting member 3 embedded in the light collecting slot 11 intercepts and receives the projected light, the light intercepting member 3 emits light as a whole, and the light emitting light intercepting member 3 displays an "A" shape in the longitudinal direction Glowing pattern.

In this structure, the light incident cross-section 7 is located on the periphery of all the groove side wall cross-sections 8 of the "A" shaped light-concentrating groove 11 on the light guide plate 2, and part of the groove side wall cross-section 8 in the light-concentrating groove 11 is entered from the light entrance cross-section 7 The light transmitted horizontally in the light guide plate 2 is directly irradiated; wherein, the light intercepted and received by the "A" shaped light interceptor 3 comes from the groove side wall section 8 and the bottom surface of the groove of the light collecting groove 11, including the light transmitted laterally in the light guide plate 2 In the process of passing through the condensing groove 11, it is cut into the width direction of the condensing groove 11 in the original direction and enters the light guide plate 2 again to continue to maintain lateral transmission (solid arrows shown in FIG. 1B) And the two directions of projected light that cannot penetrate into the light guide plate 2 through the thickness direction of the light guide plate 2 (as shown by the dotted arrows in FIG. 1B).

Further, as shown in FIG. 2E, different from FIG. 2C, the size of the notch of the "A" shaped light collecting groove 11 is slightly larger than the size of the front face of the "A" shaped light cutting member 3, and the "A" shaped light cutting member 3 Embedded in the condensing groove 11 and fixed on the bottom surface of the groove, the "A" shaped light intercepting member 3 and the groove side wall section 8 are not a fitting contact butt, but a non-contact butt with a gap between the groove side walls The projection of the section 8 on the side end face of the butted light intercepting member 3 is included in the area of the side end face, and all the groove side wall sections 8 are in face-to-face contact with all the side end faces of the light intercepting member 3. The light-cutting member 3 of this structure can also receive the light emitted from the side wall section 8 of the groove, and shows another special light-emitting effect.

Further, as shown in FIG. 2F, unlike FIG. 2C, the light incident cross-section 7 is a side cross-section around the light guide plate 2, the band-shaped LED light source 1 is disposed along the lateral extension direction of the light incident cross-section 7, and the light source 1 emits light in the direction Towards the "A" shaped light collecting groove 11 in the light guide plate 2; the "A" shaped light intercepting member 3 is provided at the notch of the light collecting groove 11 and covers the notch, at this time, the groove side wall of the light collecting groove 11 The cross-section 8 corresponds to a lateral light-emitting surface, and the entire light-concentrating groove 11 corresponds to a light-emitting box on the side wall. The notch is one of the light projection directions in the groove, as shown in FIGS. 1B and 2G. Moreover, there is no need to install a light source in the box body (that is, in the groove) like the traditional light box. The light source 1 is provided at the periphery of the condensing groove 11, and the light intercepting member 3 is provided at the slot, which is connected to the condensing groove 11 to intercept and receive the slave The groove side wall section 8 of the condensing groove 11 projects light toward the groove and emits light as a whole. In this structure, the light collecting groove 11 is in contact with the bottom of the light intercepting member 3 at the notch, and the bottom of the light intercepting member 3 receives the light projected from the groove side wall section 8. At the same time, a reflective layer or reflective coating 6 is provided on the bottom of the groove in the condensing groove 11 to reflect the light projected from the side wall section 8 of the groove toward the bottom of the groove to the bottom of the light intercepting member 3 at the mouth of the groove to increase the light emission of the light intercepting member 3 strength.

Further, as shown in FIG. 3A, different from the above structure, it further includes a facing layer 10 and a frame body 12, the mounting groove 5 provided on the light guide plate 2 is a hollow groove penetrating through its thickness direction, and the light source 1 is fixed to the periphery In the installation groove 5, the light emitting direction is opposite to the light incident cross section 7; the light intercepting member 3 is embedded in the hollow structure of the light collecting groove 11, the height of the light intercepting member 3 is not greater than the depth of the light collecting groove 11, all the grooves of the light collecting groove 11 The side wall section 8 fits and butts with all side end surfaces of the light intercepting member 3, and the projection of the groove side wall section 8 on the side end surface of the butted light intercepting member 3 includes the area of the side end surface. On the front and back sides of the light guide plate 2 are respectively provided a surface decoration layer 10 of a transparent material, and the surface decoration layer 10 is a plate-shaped or sheet-shaped transparent material. It is used to fix the components on the light guide plate 2 that are separated due to the processing of the hollow groove, and assist in fixing the light source 1 in the installation groove 5 and the light intercepting member 3 in the light collecting groove 11, while protecting the surface of the light guide plate 2. In addition, the frame body 12 has a clip groove structure, and the light guide plate 2 is clamped in the clip groove together with the outer peripheral edges of the peripheral decorative layers 10 on both sides, which is not only stable but also has a decorative effect.

Optionally, as shown in FIG. 3B, different from the structure shown in FIG. 3A, the ribbon-shaped LED light source 1 is disposed in a clamping groove on the frame body 12, and the light incident section 7 is the side of the periphery of the outline of the light guide plate 2 Cross section, the light incident cross section 7 around the outline of the light guide plate 2 is embedded in the clamping groove of the frame body 12 so as to be connected to the band-shaped LED light source 1 provided inside the clamping groove, and the light emitting direction of the light source 1 is toward the light incident cross section 7 So that the light from the light source 1 can be transmitted into the light guide plate 2 through the light entrance section 7. The frame 12 of this clip structure can be replaced with a picture frame / photo frame structure. The outline of the light guide plate 2 is embedded in the frame eaves of the picture frame. The frame 12 fixes the light source 1 and the light guide plate 2 and at the same time serves as a decorative guide The role of light board 2. In addition, a decorative layer 10 is provided on one side (reverse side) of the light guide plate 2. This decorative layer 10 is a plate-like or sheet-like transparent material or non-transparent material and is not sandwiched in the frame body 12 for Fixing the components separated from the light guide plate 2 due to the hollowing process, and assisting in fixing the light intercepting member 3 in the light collecting groove 11, while protecting the surface of the light guide plate 2.

Further, as shown in FIG. 4A, FIG. 4B and FIG. 4C, the difference from the above structure is that the middle triangular portion of the "A" shaped light collecting groove 11 on the light guide plate 2 is empty, and the area of the light collecting groove 11 becomes larger, The "A" shaped light intercepting member 3 is embedded in the hollow structure condensing groove 11, at this time, all the groove side wall sections 8 in the light condensing groove 11 are attached to the partial side end surface of the light intercepting member 3 and are fixed in docking (all The side end face corresponding to the middle triangular part of the light intercepting member 3 does not have a cross section 8 of the side wall of the butting groove. This structure realizes the special visual effect that the light-cutting member 3 displays the "A" shaped light-emitting pattern on the front, and also can achieve the special visual effect that the light-cutting member 3 concentrates the projection of light to the hollow part in the middle and diffuses the light toward the periphery. The luminous patterns on the front of each other cooperate with each other. In this structure, the light incident cross-section 7 is located on the periphery of all the groove side wall cross-sections 8 of the light-concentrating groove 11 on the light guide plate 2. The transmitted light shines directly.

Further, as shown in FIG. 5A and FIG. 5B, different from the above structure, it further includes an outline light-emitting element 9, and a frame-shaped outline light-emitting element 9 is provided on all side cross-sections around the outline of the light guide plate 2, the outline light-emitting element The inner side end face of 9 fits and butts with the side cross section of the outline periphery of the light guide plate 2, and two circles for the built-in light source 1 are provided on the light guide plate 2 between the square frame outline light emitting element 9 and the “A” shaped light intercepting element 3 Mounting slot 5, the light source 1 disposed in the outer mounting groove 5 is used to illuminate the frame-shaped outline light-emitting element 9 located on the periphery of the light guide plate 2, and the light source 1 disposed in the inner mounting groove 5 is used to Irradiating the "A" -shaped light-cutting member 3 located at the middle position of the light guide plate 2, the light-emitting directions of the light sources 1 in the two-turn mounting grooves 5 respectively face the corresponding light-entering cross sections 7. In addition, the surface of the light guide plate 2 is provided with a light-transmitting material finish layer 10, so that other components except the square-shaped outline light-emitting member 9 and the "A" -shaped light-cutting member 3, including the light source 1, are blocked , Highlighting the luminous effect of the two light-cutting pieces 3. When the light source 1 emits light, the side section of the periphery of the outline of the light guide plate 2 projects light to the inner side end face of the contour light-emitting member 9 which is in contact with it, the contour light-emitting member 9 receives the projected light, the contour light-emitting member 9 emits light, and emits light in the longitudinal direction The outline light pattern of the light guide plate 2 is displayed in the direction, matching and supporting the luminous effect of the "A" shaped light-cutting member 3, thereby forming a light-emitting logo with a light outline, enabling the light guide plate 2 to achieve multi-directional, multi-end, multi-angle Special glow effect.

Optionally, the light guide plate 2 is provided with only one circle of the mounting groove 5 for placing the light source 1 between the square-shaped outline light-emitting element 9 and the "A" -shaped light-cutting element 3, and the mounting groove for placing the light source 1 The back-lit LED light source 1 is placed inside 5, as shown in FIG. 7E, the arrangement of the light source 1 located inside the "S" hollow structure light-blocking member 3 is two sets of side-band LED light sources 1 facing away from each other It can also be formed with a set of ribbon-shaped LED light sources 1 folded in half from the middle, respectively facing the light incident cross-sections 7 on both sides of the mounting groove 5, and through the light incident cross-sections 7 directly illuminating “A” in the light guide plate laterally Shaped light-concentrating groove 11 and the side cross-section of the outline of the light guide plate 2, at this time, the two side walls of the mounting groove 5 with the light source 1 are both light-incident cross-sections 7, respectively, and the band-shaped LED light source that emits light in two directions in the groove 1 connected.

Further, as shown in FIGS. 6A-6E, what is different from the above-mentioned structure is that the light-cutting member 3 has an "S" shape, and the structure and material corresponding to the light-cutting member 3 are different from the above-mentioned structure:

In FIG. 6B, the bottom of the light-cutting member 3 is provided with a recessed groove structure, and the bottom of the light-concentrating groove 11 is provided with a reflective layer 6, and the outer end surface of the light-cutting member 3 receives the inner circumferential wall side section 8 of the light-concentrating groove 11 The emitted light is fully reflected in the cavity formed by the groove at the bottom of the light-cutting member 3 and the reflective layer 6 at the bottom of the light-condensing groove 11 and then exits from the front of the light-cutting member 3. This structure is suitable for the application requirements of the large area of the light-cutting member 3, and makes the front light-emitting effect of the wider light-cutting member 3 more uniform.

In FIG. 6C, the light intercepting member is a light intercepting member of a combined structure composed of a non-transparent light transmitting material intercepting member 3 and a transparent material intercepting member 4. Among them, the light emitted from the front of the light-cutting member 4 of transparent material comes from the light projected from the front of the light-cutting member 3 of non-transparent light-transmitting material located underneath it. Because the light-cutting member 4 is transparent, except for the front, the other end faces are not Glowing, with invisible effect, showing different luminous effects.

6D is different from FIG. 6C in that the light-cutting member 3 is disposed above the light-cutting member 4, and the bottom surface of the light-cutting member 4 is provided with a scoring or / and light-reflecting layer 6, so that the cross-section of the groove side wall around the condenser groove 11 The light emitted by 8 is scattered, reflected and projected onto the top light-cutting member 3 by the score or reflection layer 6 at the bottom when it passes through the light-cutting member 4, so that the light-cutting member 3 emits light from the front, and a part of it is embedded in the condensing groove 11 The light-cutting member 3 in itself also intercepts and receives the light emitted from the cross-section 8 of the side wall of the groove.

In FIG. 6E, the light-cutting member is a multi-layer combined structure, from bottom to top: the light-cutting member 3 of the transparent material, the light-cutting member 4 of the transparent material, and the light-cutting member 3 of the light-transmitting material. The light intercepting member 3 of the lowermost layer receives the light projected by the side wall section 8 of the surrounding grooves of the condensing groove 11 and emits light upward, transmits it through the high reflectance inside the transparent light intercepting member 4 of the middle layer, and then throws itself into the uppermost one The light intercepting member 3 of the layer makes it emit light as a whole, because the light intercepting member 4 of the middle layer does not absorb light and has an invisible effect, so that the light intercepting member 3 of the uppermost layer has a floating effect. This structure of the light-cutting member can effectively avoid the phenomenon that the brightness of the light-cutting member 3 is attenuated due to the thickness of the light-cutting member 3, that is, to ensure the thickness and the three-dimensional sense of the light-cutting member 3, and at the same time to ensure the requirements of the light output intensity.

Optionally, in order to achieve the special visual effect of the light-cutting member, the light-cutting member may be a combination structure of materials with multiple light-transmitting effects; or, the light-cutting member may be a combination structure of a non-transparent light-transmitting material and a non-light-transmitting material Or, the light-cutting member is a combination structure of a transparent material and a non-light-transmitting material.

Further, as shown in FIGS. 7A-7C, the "S" shaped light collecting groove 11 has the same shape as that shown in FIGS. 6A-6E, except that the light intercepting member 3 has an "S" shape with a hollow outline structure, For an embodiment, reference may be made to a structure similar to that shown in FIGS. 4A-4C.

7A-7C and the structure shown in FIGS. 6A-6E illustrate that the same light-gathering groove 11 can correspond to different light-cutting member structures and shapes. The latter is the cross-section 8 of all groove side walls of the light-gathering groove 11 and the light-cutting member All the side ends of 3 are in face-to-face connection, and the former is that all of the groove side wall sections 8 of the condensing groove 11 are in face-to-face connection with part of the side ends of the light interceptor 3 to achieve different luminous effects; At the periphery of 8, all of the groove side wall sections 8 in the light condensing groove 11 are directly irradiated by the light transmitted laterally from the light entrance section 7 into the light guide plate 2.

The structure shown in FIG. 7D is another structure similar to FIG. 7C, similar to the difference between FIG. 4C and FIG. 2C.

Further, as shown in FIG. 7E, a set of mounting grooves 5 and a light source 1 are respectively provided on the inside and the periphery of the "S" shaped light-cutting member 3 of the hollow structure, and the light is cut from the inside and the periphery of the light-cutting member 3 laterally Part 3, the luminous intensity of the light-cutting part 3 is higher. This structure belongs to one light-cutting member corresponding to multiple sets of light sources, and the purpose is to make all the groove side wall sections 8 in the condensing groove 11 be directly irradiated by the light incident from the light entrance section.

Further, as shown in FIG. 7F, unlike the structure shown in FIG. 7E, the light source 1 located inside the "S" shaped light-cutting member 3 of the hollow structure is disposed at the bottom of the groove of the installation groove 5, and emits light upward longitudinally toward the groove In the space and the slot, the light source 1 that emits light in the longitudinal direction is connected to the light incident cross sections 7 on both sides, and the light source 1 emits light from the light incident cross sections 7 on both sides to enter the light guide plate 2 for lateral transmission.

Optionally, as shown in FIG. 7G, unlike the structure shown in FIG. 7F, the installation groove 5 located inside the hollow-shaped "S" shaped light-cutting member 3 is a tapered groove, and the light source 1 is provided in the tapered installation groove In the notch of 5, the light source 1 which emits light vertically downward is connected to the light incident cross sections 7 on both sides of the tapered mounting groove 5. The light source 1 emits light from the light incident cross sections 7 on both sides into the light guide plate 2 for lateral transmission.

In the above structure, the light incident cross-section 7 is located at the periphery of the groove side wall cross-section 8 of the condensing groove 11.

Further, as shown in FIG. 7H, the light source 1 is disposed in the condensing groove 11, the light incident cross-section 7 is located at the groove side wall section 8 inside the condensing groove 11, and the light source 1 and the light intercepting member 3 are respectively located in the longitudinal direction At different heights in the light groove 11, the light source 1 emits light into the light guide plate 2 through the lower half of the groove side wall section 8 (that is, the light entrance section 7), and illuminates the other side wall section 8 laterally, which is arranged at the upper end of the light collecting groove 11 The light intercepting member 3 receives the light emitted from the cross section 8 of the side wall of the groove, and the light intercepting member 3 emits light. This structure belongs to the light entrance section 7 located in the light collecting groove, so that the light intercepting member 3 can cover the light source 1 while emitting light, and only the light emission of the light intercepting member 3 can be observed from the front, which is more concise.

Optionally, as shown in FIG. 7I, different from the structure shown in FIG. 7H, a transparent material light-cutting member 4 is provided between the light source 1 and the light-incoming cross-section 7 below the light-cutting member 3 in the condensing groove 11 , The bottom of the light-cutting member 4 may be provided with a scoring or reflective layer, and the setting of the light-cutting member 4 not only does not affect the quality of the light projected by the light source 1 onto the incident cross-section 7, but also stabilizes the light source 1 and the light-cutting member 3 Play a protective role.

Further, as shown in FIGS. 8A and 8B, the difference from the above structure is that the light intercepting member 3 is embedded in the condensing groove 11 and fits and butts with a part of the groove side wall section 8 and non-fitting butt with other groove side wall sections 8 , This structure can achieve a special lighting effect.

Optionally, as shown in FIG. 8C, the difference from the above structure is that in the mounting groove 5 with the built-in light source 1, the light incident cross section 7 connected to the light source 1 is close to the light guide plate 2 in the mounting groove 5 A part of the groove side wall section on the side of the central position, that is, the band-shaped LED light source 1 is only provided along the lateral extension direction of the groove side wall section of the mounting groove 5 and does not provide a circle along the section . This structure is suitable for the requirement of gradual light emission. The closer to the light source 1 is, the brighter the light intercepting member 3 is, or the part of the same light intercepting member 3 closer to the light source 1 is brighter.

Example 2

As shown in FIGS. 9A-9D, this embodiment provides a recessed light-emitting structure in which the shape of the light collecting groove 2 is rectangular, including: a light source 1, a light guide plate 2, and a light intercepting member 3;

A rectangular condensing groove 11 penetrating through the thickness direction of the board is processed at a suitable position in the middle of the light guide plate 2 so that the size of the condensing groove 11 and the picture works to be displayed (ie, photos, art works, printed patterns, needlework, etc.) Match. Among them, the groove side wall section 8 is set as a smooth plane (but not limited to a smooth plane), optionally, the groove side wall section 8 is set as a non-smooth surface, for example, the surface is provided with a texture or groove structure to increase special light emission Projection effect. A light-cutting member 3 is embedded in the rectangular light-concentrating groove 11, and the light-cutting member 3 is a middle hollow outline structure matching the outer dimensions of the light-gathering groove 11, so that the groove side wall section 8 and the hollow structure of the light-cutting member 3 are outside End to face.

The light source 1 is disposed on the side end surface (ie, the light incident cross-section 7) of the periphery of the light guide plate 2 and surrounds the light incident cross-section 7 for one week, and is pasted and fixed on the surface of the light incident cross-section 7. 7. Connect the strip-shaped LED light source 1 to the light incident cross section 7. At this time, from the front of the light guide plate 2, the light collecting groove 11, the light guide plate 2 and the light source 1 can be seen, and the light incident cross section 7 and the groove side wall cross section 8 cannot be seen.

The light source 1 emits light. As shown in the optical path diagram of FIG. 9D, the light emitted from the groove side wall section 8 is projected onto the outer end surface of the light intercepting member 3 which is in contact with it. The light intercepting member 3 receives the projected light, and the light intercepting member 3 emits light Concentrating and projecting light into the condensing groove 11, the light-cutting member 3 itself not only displays a luminous pattern matching the outline shape of the condensing groove in the longitudinal direction, but also can realize the special luminous effect of the concentrating groove. The light-concentrating groove spreads light evenly to the outside of the notch. The painting works to be displayed can be arranged near the outside of the notch of the condensing groove, and the surface of the painting works is evenly spread with light. This structure is similar to the light-emitting effect of the light-cutting member and its hollowed-out portion in the structures shown in FIGS. 4B and 4C and FIGS. 7B and 7C.

Optionally, the light collecting groove 11 and the light guide plate 2 may have a splicing structure. The light collecting groove 11 is formed by splicing four independent transparent strip-shaped plates, as shown in FIG. 9B.

Further, as shown in FIG. 9E, the difference from the structure shown in FIG. 12C is that a U-shaped mounting groove 5 with a notch facing downward is provided on the periphery of the light collecting groove 11, and the light source 1 is provided in the mounting groove 5; The outer size of the light-cutting member 3 is slightly larger than the size of the light-concentrating groove 11, the hollow-structured light-cutting member 3 is arranged and bonded to the outer edge of the front notch of the light-concentrating groove 11, and covers a part of the area of the groove of the light-concentrating groove 11, The connection of the light intercepting member 3 and the light collecting groove 11 is realized. In this way, the groove side wall section 8 not only projects the light to the light intercepting member 3 at the notch, but also concentrates most of the light into the condensing groove 11, because the light emitted from the light guide plate 2 itself has a flat beam Features, plus the light intercepting member 3 provided at the slot not only emits light by itself, but also plays a role in condensing the directional light projected from the slot side wall section 8 so that more light is projected to the condensing slot 11 In the middle, the effect of the light-gathering groove 11 on the outside of the notch on both sides, especially the back notch (the notch in which the light intercepting member 3 is not provided) is better.

Further, as shown in FIG. 10A, it further includes a frame body 12 and a surface decoration layer 10. Two-layer decoration layer 10 is provided on the front of the light guide plate 2. The lower surface decoration layer 10 is made of opaque material to cover the installation slot 5 and the light source 1 in the groove, and the opaque decorative layer 10 also covers the hollowed-out area of the light-cutting member 3 and part of the light-condensing groove 11, which not only realizes special visual requirements, but also has a light gathering effect. More light scattered from the notch of the condensing groove 11 is collected back into the condensing groove 11; an interview layer 10 of transparent material is provided on the top of the opaque surface decoration layer 10 and the back of the light guide plate 2 respectively, and the cover is collected The notches on both sides of the light groove 11 are used to protect the surface of the light guide plate 2 and the cleanliness of the space in the light collection groove 11; finally, the peripheral edges of the light guide plate 2 and all the surface finishes 10 are embedded in the frame body 12 as a whole The mechanism is more stable, and the frame 12 has a decorative effect. In this structure, walls, floors, ceilings, and paintings on the walls or ceiling can be used as paving objects. This structure not only has good lighting effect, but also can be flexibly installed as indoor lighting.

Further, as shown in FIG. 10B, the main difference from the structure shown in FIG. 10A is that no light-transmitting surface decoration layer is provided, and the light-cutting member 3 emits a light-emitting outline pattern matching the shape of the light-concentrating groove 11 as a set off To cooperate with the concentrating groove 11 to spread light to the outside of the notch.

Optionally, as shown in FIG. 10C, the difference from the above structure is that the bottom plate 13 of the condensing groove 11 is provided with an opaque bottom plate 13, and the bottom plate 13 at this time can be regarded as an opaque plate provided on the back of the light guide plate The surface decoration layer 10; the sunken condenser space is formed between the light collecting groove 11 and the bottom plate 13, the upper surface of the bottom plate 13 is used as the object of the light collecting groove 11 to radiate light outward, and the painting work can be set on the surface of the bottom plate 13 Or, directly set the painting work as the floor 13 under the notch on the back of the condensing groove 11 to achieve the best light spreading effect.

Optionally, as shown in FIG. 10D, where the light-cutting member 3 is a structure with a light-gathering eaves on the top, which is equivalent to combining the light-cutting members in FIGS. 9C and 9E; the bottom plate 13 is set in the light-concentrating groove as needed 11 The corresponding position under the notch on the back side keeps the bottom plate 13 and the notch at an appropriate distance. The farther away from the notch, the more uniform the light distribution and the softer it is.

Optionally, set the bottom plate 13 at the corresponding position under the notch on the back of the condensing groove 11 as needed to keep the bottom plate 13 and the notch at an appropriate distance. The farther away from the notch, the more uniform the light distribution and the softer it is. .

Optionally, the light-concentrating groove 11 is rectangular, and the light-condensing groove 11 can be provided in various shapes as needed to set off different visual effects.

Other embodiments

Variations and combinations can be made according to the specific features in the above embodiments to form other embodiments with other forms and structural features and satisfy the technical features of the present invention.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present invention. range.

Claims

An embedded light-emitting structure, characterized in that it includes a light source, a light guide plate, and a light intercepting member;

The light guide plate is provided with a plurality of mounting grooves, and the cross section of the light guide plate is at least one of a cross section through the thickness direction of the light guide plate and a non-through cross section through the thickness direction of the light guide plate, including the A side cross section around the outline of the light guide plate and a cross section of the groove side wall of the mounting groove; the cross section provided with the light source is a light incident cross section, the light source is in contact with the light entrance cross section; the light interception is provided The mounting groove of the piece is a light collecting groove, and the light intercepting piece is connected to the light collecting groove; the light source emits light from the light cross section into the light guide plate for lateral transmission, and illuminates the light collecting groove laterally , The light-concentrating groove concentrates the light into the light-concentrating groove through the cross-section of the side wall of the groove, the light-cutting member intercepts and receives the projected light, the light-cutting member emits light, the light-cutting member A light-emitting pattern is displayed in the longitudinal direction.
The embedded light-emitting structure according to claim 1, characterized in that the light source is a strip-shaped LED light source, and the strip-shaped LED light source is arranged along the lateral extension direction of the light incident cross section and is in contact with it, the The light incident cross-section is located at a side cross-section around the outline of the light guide plate; or,

The light incident cross section is located at the groove side wall cross section of the installation groove, the light source is disposed in the installation groove, and the lateral light is emitted toward the light entrance cross section and the light collection groove, and the light source emits light directly State the light cross section; or,

The light source is arranged at the bottom of the groove of the installation groove, and emits light upward longitudinally toward the groove; or,

The light source is arranged in the slot of the installation slot, and emits light downward longitudinally toward the space in the slot of the installation slot;

The light emitted by the light source enters the light guide plate and is transmitted.
The embedded light emitting structure according to claim 1, characterized in that the light intercepting member and the light collecting groove are in a form that at least a part of the light intercepting member is embedded in the light collecting groove, The side end surface of the optical member is butted with the cross-section of the groove side wall in the light-concentrating groove; or,

The light intercepting member is disposed at the notch of the light collecting groove, and is connected to the light collecting groove through the bottom of the light intercepting member;

The light-cutting member emits light.
The embedded light-emitting structure according to claim 3, wherein at least a part of the light-cutting member is embedded in the light-concentrating groove, and the groove side wall section of the light-concentrating groove and the side end surface of the light-cutting member The docking method is contact docking or non-contact docking;

The cross-section of the groove side wall of the condensing groove is in contact with all the side ends of the light-cutting member; or,

A cross-section of the groove side wall of the light-concentrating groove is in contact with a part of the side ends of the light intercepting member.
The embedded light-emitting structure according to claim 4, wherein the light-cutting member is a non-transparent light-transmitting material; or,

The light-cutting member is a transparent material; or,

The light intercepting member is a combination structure of a non-transparent light-transmitting material and a transparent material; or,

The light intercepting member is a combination structure of multiple light-transmitting materials; or,

The light intercepting member is a combination structure of a non-transparent light-transmitting material and a non-light-transmitting material; or,

The light intercepting member is a combination structure of a transparent material and a non-transparent material.
The embedded light-emitting structure according to claim 2, wherein the light incident cross-section is located at the periphery of the groove side wall cross-section of the light concentrating groove on the light guide plate; or, the light incident cross-section is located at the light concentrating Inside the slot

A part of the groove side wall section of the light condensing groove is directly irradiated with light transmitted laterally from the light entrance section into the light guide plate; or, all the groove side wall sections of the light condensing groove are entered from the light entrance section The light transmitted horizontally in the light guide plate is directly irradiated.
The embedded light-emitting structure according to claim 5 or 6, further comprising an outline light-emitting element, the outline light-emitting element is disposed at an outer periphery of the outline of the light guide plate, and the inner side end face of the outline light-emitting element is The side cross-sections of the periphery of the light guide plate are butted, and the light transmitted laterally inside the light guide plate projects light to the inner side end surface of the contour light-emitting member butted against the light guide plate through the side cross-section of the periphery of the light guide plate. The light emitting member receives the projected light, the outline light emitting member emits light, and the outline light emitting member displays a light emitting pattern in a longitudinal direction matching the outline shape of the light guide plate.
The embedded light-emitting structure according to claim 7, wherein the light-concentrating groove is disposed at a middle position of the light guide plate, and the light source and the light incident cross-section are disposed at the periphery of the light-concentrating groove , The light-cutting member is a hollow-out outline structure, at least a part of the light-cutting member is embedded in the light-concentrating groove, and the outer side end surface of the periphery of the light-cutting member is butted with the cross-sectional side wall of the light-concentrating groove ;or,

The light intercepting member is disposed at a notch of the light concentrating groove, and the light intercepting member is connected to the light concentrating groove;

The projection of the hollowed-out area on the light-cutting member onto the area of the light-concentrating groove is included in the area of the light-concentrating groove, the light source emits light through the light-incident cross-section and enters the interior of the light guide plate, and the light is in the light-incident cross-section High-reflectivity transmission is performed inside the light guide plate between the groove side wall section of the light condensing groove, and the light guide plate is emitted from the groove side wall section of the light condensing groove to project light into the light condensing groove , The light intercepting member receives the light projected from the cross section of the groove side wall of the light concentrating groove, the light emitting pattern of the light intercepting member in the longitudinal direction matches the outline shape of the light concentrating groove, and the light condensing groove Spread light evenly to the outside of the slot.
The embedded light-emitting structure according to claim 8, further comprising a finishing layer, and the finishing layer is provided on at least one of the two sides of the light guide plate.
The embedded light-emitting structure according to claim 9, further comprising a frame body, an outer edge of the periphery of the light guide plate is disposed in the frame body; or,

At least one of the light source that is in contact with the peripheral profile side cross-section of the light guide plate and the peripheral outer edge of the finish layer is disposed in the housing together with the outer edge of the peripheral edge of the light guide plate.