KR101340053B1 - Structure of face illumination device for preventing light source loss - Google Patents

Abstract

The present invention relates to a structure of a flat panel illumination device for preventing light source loss comprising: four extrusion guide members in which two corners crossing at a right angle are bonded by an end cap and each corner is finished and reinforced by a corner reinforcing member; an LED module, in which a plurality of LED elements are mounted, inserted into and coupled to each of the extrusion guide members; and a diffusing illumination cover bonded with and wrapped by the extrusion guide members for emitting, to the front side, the light projected from the LED module inserted into each inner side of the extrusion guide members. The diffusing illumination cover includes: a PCB substrate in which a diffusing plate, a light guide plate, a reflective plate and an aluminum plate are sequentially laminated from a front surface, the LED module is inserted into the extrusion guide member for preventing movements in all directions with respect to the light guide plate, and an LED element array is adhered to a front surface; and an insulation lens part extended from an upper end and a lower end of the PCB substrate for preventing electrification between the PCB substrate and the extrusion guide member, and formed with a structure separated apart from and connected to a front side of the PCB element array for making a separated and connected region function as a condensing lens.

Description

Structure of face illumination device for preventing light source loss

The present invention relates to a structure of a flat light to prevent light source loss, and more specifically, by using a conventional insulating portion to focus the light source to the light guide plate in order to eliminate the light source loss, an additional additional configuration The present invention relates to a structure of a flat plate light for preventing light source loss to enable cost reduction, weight reduction, ultra-slim, and the like, by enabling a slim light guide plate structure.

In general, indoors such as homes, offices, officetels, schools, and public offices are installed with various shapes and structures fixed to ceilings or walls, and the illuminations are intended to brighten dark rooms.

Such lighting will typically be divided into a ceiling light fixed to the indoor ceiling and a wall light fixed to the indoor wall, and the ceiling light can be classified into a type that directly attaches to the ceiling and a pendant type that hangs on the ceiling according to the structure and shape. Can be. Most of the ceiling lighting is composed of a fixed body which is directly fixed to the lower surface of the indoor ceiling and a floodlight cover coupled to the room from the fixed body.

On the other hand, in the ceiling-mounted flat lighting, there is a problem that the light source is lost due to the decrease in adhesion between the diffused light cover and the LED module, and thus there is a problem that the illumination intensity is lowered due to not being concentrated diffusion.

[Related Technical Literature]

1. LIGHT SOURCE FOR WHITE COLOR LED LIGHTING AND WHITE COLOR LED LIGHTING DEVICE (Patent Application No. 10-2003-0028218)

2. LED lighting apparatus of directly under lighting (Patent Application No. 10-2009-0059977)

The present invention is to solve the above problems, by utilizing a conventional insulating portion to focus the light source to the light guide plate to eliminate the light source loss, no additional configuration is required, the slim light guide plate structure It is to provide a structure of a flat panel lighting to prevent light source loss to enable.

In addition, the present invention, by utilizing the existing insulation, it is possible to reduce the cost, light weight, ultra-slim, and the like, as well as flat panel lighting for preventing light source loss to secure the superiority of the correction function in the edge-type flat lighting structure Is to provide a structure.

In addition, the present invention is to provide a structure of a flat panel lighting for preventing light source loss to structurally solve the problems such as adhesion degradation and separation between the LED element array and the light guide plate on a conventional flat panel lighting.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a flat lighting structure for preventing light source loss according to an embodiment of the present invention includes two orthogonal corners joined by end caps, and each corner has a finish and reinforcement by a corner reinforcing member. Four extrusion guide members; A plurality of LED elements mounted and formed, the LED modules being fastened into a structure inserted into each of the extrusion guide members; And four diffusion guide members surrounded by the four extrusion guide members and formed to emit light projected from the LED module inserted into each of the extrusion guide members. In the structure of the flat panel lighting to prevent light source loss, including the diffusion light cover, the diffusion plate, the light guide plate, the reflecting plate and the aluminum plate is formed by sequentially stacked from the front, the LED module, the extrusion guide member A PCB substrate inserted therein to prevent movement of the light guide plate up, down, left, and right and to attach the LED element array to the front part; And a condensed region, which is formed to be spaced apart from the front surface of the PCB element array and extends from an upper end and a lower end of the PCB substrate, respectively, in order to prevent conduction between the PCB substrate and the extrusion guide member. An insulating lens unit acting as a lens; .

At this time, the insulating lens is characterized in that the cross section is formed in a shape in which the "M" shape is rotated counterclockwise by 90 degrees.

In addition, the insulating lens unit, it is preferable to perform the withstand voltage insulating bar function and the condenser lens function for the light source irradiated from the LED element array.

In addition, the LED element array is formed on the front surface of the PCB substrate between the gaps covered by the insulating lens portion, it is preferable to be formed of a plurality of LED elements for irradiating a light source with the diffusion light cover.

In addition, in the case where the insulating lens portion has L12 in the overall height on the cross section, the PCB substrate has L11 in the height on the cross section, and the LED element array has L13 in the height on the cross section, between the L11, the L12, and the L13. The size relationship is preferably formed from 2.4 to 2.8: 1: 3.2 to 3.4.

Further, in the case where the insulating lens portion has L22 in full length on the cross section, the PCB substrate has L21 in length on the cross section, and the LED element array has L23 in length on the cross section, between the L21, the L22, and the L23. The size relationship is preferably formed from 1: 1.2 to 1.3: 3.4 to 3.7.

In addition, the diffusion plate, when the light source irradiated from the LED element array is scattered by the light guide plate, it is preferably formed on the most front surface of the diffusion light cover to perform a function to uniformly diffuse to the front surface with respect to the light source. Do.

In addition, the light guide plate is formed to be in close contact with the front surface of the insulating lens portion on the back of the diffusion plate, the light source irradiated from the LED element array by the laser pattern (Laser Pattern: LP) formed therein refracted, It is preferable to perform a function to irradiate in the direction of the diffusion plate formed.

In addition, the reflecting plate, preferably formed on the rear surface of the light guide plate is scattered by the refraction in the light guide plate to the front of the light source which is extinguished to the rear except for the light source toward the front surface.

In addition, the aluminum plate, in the form of a thin film, is preferably formed on the rear surface of the reflecting plate to perform a function of correcting the flatness of the reflecting plate.

Further, when the diffusion plate has L31 in height, the light guide plate has L32 in height, the reflector plate has L33 in height, and the aluminum plate has L34 in height, the L31, the L32, the L33 and the The size relationship between L34 is preferably formed from 9.2 to 9.3: 18.2 to 18.9: 1: 2.1 to 2.3.

In addition, the L34 is preferably 0.225mm to 0.25mm.

In addition, the reflective plate is preferably formed by being laminated on the rear surface of the light guide plate in a state spaced apart from the vertical surface in close contact with the front surface of the light guide plate and the insulating lens portion.

In addition, the aluminum plate is preferably formed by being stacked on the rear surface of the reflecting plate in a state spaced apart from the vertical surface in close contact with the front surface of the light guide plate and the insulating lens unit.

In addition, the length of the reflective plate is spaced apart from the vertical surface in close contact with the front surface of the light guide plate and the insulating lens portion L41, and the length of the aluminum plate is spaced apart from the vertical plane in close contact with the front surface of the light guide plate and the insulating lens portion. When the lengths of L42 are combined, the L41: L42 corresponding to the size relationship between the L41 and the L42 is preferably 1: 1.2 to 1.3.

In addition, the L12: L21: L33: L33: L41 corresponding to the size relationship between the L12, L21, L33 and L41 is preferably formed from 14.4 to 14.6: 5.76 to 5.92: 1: 3.2 to 3.4. .

In addition, between the diffused light cover and the insulating lens portion, each of which has a triangular shape each having an area A11 and A12 in cross section, and a hypotenuse having a triangular shape each having an area A11 and A12 facing each other based on a vertical axis. It is preferable that it is formed in a shape.

The vertex region formed by the hypotenuse and the base of the triangular shape each having the areas A11 and A12 is preferably formed to have r1 in curvature.

Further, in the state where the LED element array is formed on the front surface of the PCB substrate, an area A2 is formed in cross section between the PCB substrate and the insulating lens unit, and the area A2 is rotated 90 degrees clockwise in the M shape. It is preferably formed to have a shaped shape.

In addition, it is preferable that two curves having a curvature r2 are formed at the uppermost end of the M shape rotated 90 degrees clockwise.

In addition, it is preferable that a space area having an area A31 and A32 in the cross section is formed on the upper and lower portions of the area where the PCB substrate is in contact with the extrusion guide member among the areas where the insulating lens unit is inserted between the extrusion guide members.

In addition, it is preferable that the insulating lens portion is formed in a shape having a curvature r3 on a cross section in a space region having the area A31 and the area A32.

In addition, it is preferable that a space region having an area A31 and A32 in the cross section is formed on the upper and lower portions of the region where the insulating lens portion is in contact with the light guide plate among the regions where the insulating lens portion is inserted between the extrusion guide members.

In addition, in the space area having the area A41 and the area A42, the insulating lens part is preferably formed in a shape having a curvature r4 on the cross section.

Further, the area A11 or the area A12 corresponding to the size relationship between the area A11 or the area A12, the area A2, the area A31 or the A32, the area A41, or the A42: the area A2: the area A31 or the above Area A32: The area A41 or the frying A42 is preferably formed from 45 to 52: 23 to 21: 3.7 to 3.5: 1.

In addition, it is preferable that the magnitude relationship between the curvature r1, the curvature r2, the curvature r3, and the curvature r4 be formed as the r2> the r4> the r3> the r1.

In the structure of the flat lighting for preventing light source loss according to an embodiment of the present invention, by using a conventional insulating portion to focus the light source to the light guide plate to eliminate the light source loss, no additional configuration is required It provides the effect that slim light guide plate can be applied.

In addition, the structure of the flat lighting for preventing light source loss according to another embodiment of the present invention, by using the existing insulation, not only to reduce the cost, weight, ultra-slim, etc., but also in the edge type flat lighting structure It provides the effect of securing the superiority of the correction function.

In addition, the structure of the flat panel lighting to prevent light source loss according to another embodiment of the present invention, structurally solve the problems such as adhesion degradation and separation between the LED element array and the light guide plate on the conventional flat panel lighting.

1 is an exploded perspective view showing a flat light for preventing light source loss according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a fastening structure between the extrusion guide member, the LED module, and the diffused light cover before the adoption of the light source loss prevention structure by the flat panel lighting to prevent the light source loss according to an embodiment of the present invention.
3 is a view for explaining the light source loss by the light source irradiation from the LED module according to the fastening between the extrusion guide member, the LED module and the diffused light cover of FIG.
4 is a view for explaining a light source loss prevention structure in flat lighting for preventing loss according to an embodiment of the present invention.
5 and 6 are views for explaining the structure of the flat lighting for preventing the loss in FIG.
FIG. 7 is a view for explaining that light source loss is prevented by a light condensing and close contact structure by a structure for flat lighting for preventing loss in FIG. 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is an exploded perspective view showing a flat light (1) for preventing light source loss according to an embodiment of the present invention. First, referring to FIG. 1, a flat plate name 1 for preventing light source loss may include a corner reinforcing member 100, an extrusion guide member 200, an end cap 300, an end cap 300, and an LED module 400 for self-assembly. 400a) and diffused light covers 500 or 500a and the like.

The corner reinforcing member 100 has a rectangular triangular flat shape, and a point where two extrusion guide members 200 meet is formed on an upper surface fixed by the end cap 300. Here, the corner reinforcing member 100 is fastened to each corner region of the flat panel light 1 to prevent torque on the installation of the flat panel light 1 and to prevent the flat panel light 1 from flipping. Do this.

Extrusion guide member 200 is formed of an aluminum material is bonded by the end cap 300, the finish and reinforcement by the corner reinforcing member 100 is made.

The end cap 300 is a structural unit for joining the corner where two extrusion guide members 200 meet at right angles.

The LED module 400 or 400a is formed by mounting a plurality of LED elements, and is fastened to a structure that is inserted into the extrusion guide member 200.

The diffused lighting cover 500 or 500a is surrounded by four extrusion guide members 200 and bonded to each other, so that the light projected from the LED module 400 or 400a inserted into each of the extrusion guide members 200 emits light toward the front. To be formed.

Based on this basic structure, a light source loss prevention structure of the flat panel lighting 1 will be described in more detail.

2 is a view illustrating an extrusion guide member 200, an LED module 400, and a diffused light cover 500 before the adoption of the light source loss prevention structure by the flat panel lighting 1 for preventing light source loss according to an embodiment of the present invention. It is sectional drawing which shows a fastening structure. 3 is a view illustrating a light source loss due to light source irradiation from the LED module 400 according to the fastening between the extrusion guide member 200, the LED module 400 and the diffused light cover 500 of FIG. 1 to 3, the extrusion guide member 200 serves as a pivotal frame of the flat panel lighting 1, serves as a heat sink for heat dissipation of the LED module 400, and is formed of an aluminum material. It is preferable to be.

Meanwhile, the LED module 400 includes a PCB substrate 410, an insulation unit 420, and an LED device array 430.

The PCB substrate 410 serves to fix the insulation unit 420 constituting the LED module 400 and the LED element array 430, and the top, bottom, left and right sides of the light guide plate 520 constituting the diffused light cover 500. In order to align the insulating portion 420 corresponding to the light incident portion is inserted into the insertion groove of the extrusion guide member 200 is formed.

The insulator 420 serves to prevent conduction between the PCB substrate 410 formed on the front surface, the extrusion guide member 200, and the aluminum plate 540 constituting the diffused light cover 500. The upper end and the lower end of the 410 has a cross-section formed in a "c" shape of the structure covered in the direction of the thread, thereby performing the function of the withstand voltage insulating bar.

The LED device array 430 is formed on the front surface of the PCB substrate 410 between the gaps covered by the insulation unit 420, and is formed of a plurality of LED devices to irradiate a light source with the diffusion lighting cover 500.

The diffused light cover 500 includes a diffuser plate 510, a light guide plate 520, a reflector plate 530, and an aluminum plate 540.

The diffuser plate 510 is a diffused light cover to perform a function of uniformly diffusing the front surface with respect to the light source when the light source irradiated from the LED element array 430 of the LED module 400 is scattered by the light guide plate 520 It is formed at the foremost surface of 500.

The light guide plate 520 is formed on the rear surface of the diffusion plate 510 and is formed to have a length symmetrical with respect to the LED element array 430 in the height direction, and the LED element array (Laser Pattern: LP) is formed therein. The light source irradiated from 430 is refracted to perform the function of irradiating in the direction in which the diffuser plate 510 formed on the front surface is located.

The reflective plate 530 is formed on the rear surface of the light guide plate 520, and thus reflects the light source scattered by the refraction in the light guide plate 520 to the front side except for the light source toward the front side.

The aluminum plate 540 has a thin film shape and is formed on the rear surface of the reflector 530 to be 0.225 mm to 0.25 mm to correct the flatness of the reflector 530.

On the other hand, although the flat panel lighting 1 according to FIG. 2 is designed in its own excellent structure, the light source loss occurs as shown in FIG. 3, for the reason, the LED element array 430 of the LED module 400 is diffused. A phenomenon in which the light source bounces due to a decrease in adhesion of the light guide plate 520 of the lighting cover 500 occurs. In particular, when the light source is spaced apart toward the diffuser plate 510, a problem occurs in the loss of the white light source due to the light loss and the concentrated diffusion (see FIG. 3A).

In addition, a defect in the center alignment between the LED module 400 and the diffused light cover 500 causes the yellow light source loss problem due to the tilting of the PCB substrate 410 due to the cumulative tolerances of the instrument parts, and the height of the DC wire solder portion. (See Figure 3b).

An intermittent white light source loss problem occurs due to poor light distribution of the diffused light cover 500 due to a poor phosphor (PHOSPHOR).

On the other hand, the problem of the largest light source loss corresponds to a 1: 1 alignment misalignment between the LED element array 430 and the light guide plate 520 of the LED module 400, and thus, the present invention provides a complementary structure for solving such a problem. Do it.

4 is a view for explaining a light source loss prevention structure in the flat lighting 1 for the loss prevention according to the embodiment of the present invention. 5 and 6 are views for explaining the structure of the flat panel lighting 1 for preventing light source loss in FIG. FIG. 7 is a view for explaining that the light source loss is prevented by the light condensing and close contact structure by the structure of the flat light 1 for preventing the loss in FIG. 4. 4 to 7, the LED module 400a includes a PCB substrate 410a, an insulating lens unit 420a, and an LED element array 430a.

The PCB substrate 410a is formed to have L11 in height and L21 in length in cross section.

The LED element array 430a is formed on the front surface of the PCB substrate 410a between the gaps covered by the insulating lens unit 420a, and is formed of a plurality of LED elements to irradiate a light source with the diffusion lighting cover 500. It is formed to have L13 in height on the cross section and L23 in length.

The insulating lens unit 420a extends from the upper end and the lower end of the PCB substrate 410a so as to prevent the conduction between the PCB substrate 410a formed on the front surface and the extrusion guide member 200, respectively. It is formed in a structure connected from the front of the (410a), the cross-section is formed in a shape that "M" shape is rotated 90 degrees counterclockwise. The insulating lens unit 420a is formed to have L12 at full height in the cross section and L12 at full length, thereby condensing lens function for the light source irradiated with the withstand voltage insulating bar and the LED element array 430a of the LED module 400a. Do this.

Meanwhile, the diffused light cover 500a includes a diffuser plate 510a, a light guide plate 520a, a reflector plate 530a, and an aluminum plate 540a.

The diffuser plate 510a is a diffused light cover to perform a function of uniformly diffusing the front surface of the light source when the light source irradiated from the LED element array 430a of the LED module 400a is scattered by the light guide plate 520a. It is formed to have a height L31 at the foremost surface of 500a.

The light guide plate 520a is formed to be in close contact with the front surface of the insulating lens unit 420a on the rear surface of the diffusion plate 510a. For this purpose, the light guide plate 520a is formed to have a height L32 at a position symmetrical with the LED element array 430a in the height direction. The light source irradiated from the LED element array 430a is refracted by the laser pattern LP formed in the laser pattern LP to perform the function of irradiating the diffuser plate 510a formed in the front direction.

The reflector plate 530a is formed at the height L33 on the rear surface of the light guide plate 520a to perform the function of reflecting the light source that is scattered by the refraction inside the light guide plate 520a by the refraction and disappears to the front side except for the light source toward the front side. do.

The aluminum plate 540a is formed in a thin film form and has a height L34 corresponding to 0.225 mm to 0.25 mm on the rear surface of the reflecting plate 530a to correct the flatness of the reflecting plate 530a.

On the other hand, the reflective plate 530a formed on the rear surface of the light guide plate 520a is formed by stacking the light guide plate 520a on the rear surface of the light guide plate 520a by being separated by a length L41 from a surface in close contact with the front surface of the insulating lens unit 420a.

In addition, the aluminum plate 540a is formed on the rear surface of the reflective plate 530a so that the light guide plate 520a is spaced apart from the surface in close contact with the front surface of the insulating lens unit 420a by combining the lengths L41 and L42 to the rear surface of the reflective plate 530a. It is laminated and formed.

Herein, the size relationship between L11, L12, and L13 is 2.4 to 2.8: 1: 3.2 to 3.4. The size relationship between L21, L22, and L23 is formed from 1: 1.2 to 1.3: 3.4 to 3.7.

In addition, the size relationship between L31, L32, L33, and L34 is formed from 9.2 to 9.3: 18.2 to 18.9: 1: 2.1 to 2.3.

In addition, the size relationship between L41 and L42 is formed from 1: 1.2 to 1.3. Finally, the size relationship between L12: L21: L33: L41 is formed from 14.4 to 14.6: 5.76 to 5.92: 1: 3.2 to 3.4.

On the other hand, the shape of the insulating lens unit 420a in more detail, between the diffused light cover 500a and the insulating lens unit 420a in the cross-sectional shape each having an area A11 and A12 in the cross section, each hypotenuse of the triangular shape It is formed in a shape facing the vertical axis. Here, the vertex region formed by the hypotenuse and the base of the triangular shape is formed to have r1 as a curvature.

In the state where the LED element array 430a is formed on the front surface of the PCB substrate 410a, an area A2 is formed between the PCB substrate 410a and the insulating lens unit 420a in cross section, and the area A2 has an M shape of 90 degrees. In addition, it has a shape rotated in a clockwise direction, and two curves having a curvature r2 are formed at the uppermost end of the M shape.

In the area where the insulating lens unit 420a is inserted between the extrusion guide member 200, the space area having the areas A31 and A32 on the upper and lower portions of the area where the PCB substrate 410a is in contact with the extrusion guide member 200, respectively. Is formed, and the insulating lens portion 420a is formed in a shape having a curvature r3 on the cross section in the space region having the areas A31 and A32.

In the area where the insulating lens part 420a is inserted between the extrusion guide member 200 and the area where the insulating lens part 420a is in contact with the light guide plate 520a, a space area having an area A31 and A32 in cross section respectively is provided. In the space area having the areas A41 and A42, the insulating lens portion 420a is formed in the shape having the curvature r4 on the cross section.

Wherein the area A11 or A12: area A2: area A31 or A32: area A41 or A42 corresponding to the size relationship between area A11 or A12, area A2, area A31 or A32, area A41 or A42 is 45 to 52: 23 to 21: 3.7 to 3.5: 1.

Moreover, the magnitude relationship between curvature r1, curvature r2, curvature r3, and curvature r4 is formed by r2> r4> r3> r1.

In Table 1 below, when the insulating lens unit 420a is added as a result of an experiment on the roughness on the entire surface of the diffusion plate 510a according to the ratio between the area A11 or A12, the area A2, the area A31 or A32, and the area A41 or A42 The roughness rise rate is shown.

As such, when the area ratio between the above-mentioned area A11 or A12: area A2: area A31 or A32: area A41 or A42 was found to be the highest, the illuminance increase rate was the best, and the experiments described above were performed in the above-described lengths L11, L12, L13, L21, and L22. , L23, L31, L32, L33, L34, L41, and L42, and the roughness increase rate when designed by satisfying the magnitude relationship of curvature r1-curvature r4 is shown. On the other hand, the experimental results of Table 1 below means the average value according to all the experiments for 0.1 unit in the range of each parameter.

division A11 (or A12): A2: A31 (or A32): A41 (or A42) Illuminance rate of increase (%) Test Example 1 44 to 32: 23 to 21: 3.7 to 3.5: 1 1.13% Test Example 2 45 to 52: 20 to 10: 3.7 to 3.5: 1 1.12% Test Example 3 45 to 52: 23 to 21: 3.4 to 2.4: 1 1.15% Test Example 4 45 to 52: 23 to 21: 3.7 to 3.5: 1 1.25% Test Example 5 45 to 52: 23 to 21: 3.7 to 3.5: 0.9 to 0.8 1.11% Test Example 6 53 to 63: 23 to 21: 3.7 to 3.5: 1 1.09% Test Example 7 45 to 52: 34 to 24: 3.7 to 3.5: 1 1.12% Test Example 8 45 to 52: 23 to 21: 3.8 to 4.8: 1 1.07% Test Example 9 45 to 52: 23 to 21: 3.7 to 3.5: 2 to 10 1.04%

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms have been used, they have been used only in a general sense to easily describe the technical contents of the present invention and to facilitate understanding of the invention , And are not intended to limit the scope of the present invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100: corner reinforcement member
200: extrusion guide member
300: end cap
400, 400a: LED module
410a: PCB board
420a: insulating lens part
430a: LED device array
500, 500a: Diffusion light cover
510a: diffuser plate
520a: light guide plate
530a: reflector
540a: aluminum plate

Claims (26)

Two orthogonal corners are joined by an end cap, each corner having four extrusion guide members for finishing and reinforcement by a corner reinforcing member; A plurality of LED elements mounted and formed, the LED modules being fastened into a structure inserted into each of the extrusion guide members; And four diffusion guide members surrounded by the four extrusion guide members and formed to emit light projected from the LED module inserted into each of the extrusion guide members. In the structure of the flat light for preventing the light source including a;
The diffusion lighting cover is formed by sequentially stacking a diffusion plate, a light guide plate, a reflecting plate and an aluminum plate from the front surface,
The LED module may include: a PCB substrate inserted into the extrusion guide member to prevent movement of the light guide plate up, down, left, and right and to attach the LED element array to the front part; And a condensed region, which is formed to be spaced apart from the front surface of the PCB element array and extends from an upper end and a lower end of the PCB substrate, respectively, in order to prevent conduction between the PCB substrate and the extrusion guide member. An insulating lens unit acting as a lens; Lt; / RTI >
The LED device array is formed on the front surface of the PCB substrate between the gap covered by the insulating lens unit, it is formed of a plurality of LED elements for irradiating a light source with the diffusion light cover to prevent the light source loss For the structure of flat panel lighting.
The method of claim 1, wherein the insulating lens unit,
Cross-section "M" shape of the flat plate illumination structure for preventing light source loss, characterized in that formed in a shape rotated 90 degrees counterclockwise.
The method of claim 2, wherein the insulating lens unit,
The structure of the flat panel lighting for preventing light source loss, characterized in that the withstand voltage bar and the condenser lens function for the light source irradiated from the LED element array.
delete The method according to claim 1,
The size relationship between the L11, the L12 and the L13 when the insulating lens portion has L12 at the overall height on the cross section, the PCB substrate has the L11 at the height on the cross section, and the LED element array has the L13 at the height on the cross section. The structure of the flat panel lighting to prevent light source loss, characterized in that formed from 2.4 to 2.8: 1: 3.2 to 3.4.
The method according to claim 5,
The size relationship between the L21, the L22 and the L23 when the insulating lens portion has L22 in full length on the cross section, the PCB substrate has L21 in length on the cross section, and the LED element array has L23 in length on the cross section. 1: 1.2 to 1.3: 3.4 to 3.7 is a flat lighting structure for preventing light source loss, characterized in that formed.
The method of claim 6, wherein the diffusion plate,
When the light source irradiated from the LED element array is scattered by the light guide plate, to prevent the light source loss, characterized in that formed on the most front surface of the diffusion light cover to perform a function to uniformly diffuse to the front surface with respect to the light source The structure of flat lighting.
The method according to claim 7, wherein the light guide plate,
The diffuser plate is formed in close contact with the front surface of the insulating lens unit, and the light source irradiated from the LED element array is refracted by a laser pattern (LP) formed therein, so that the diffuser plate is formed on the front side. Flat light structure for preventing the light source, characterized in that to perform a function to be irradiated with.
The method according to claim 8, wherein the reflecting plate,
The light source is formed on the rear surface of the light guide plate and scattered by the refraction inside the light guide plate, except for the light source toward the front side of the flat light for preventing the loss of light source, characterized in that the function of reflecting back to the front surface rescue.
The method according to claim 9, The aluminum plate,
The thin film form, the structure of the flat panel illumination for preventing light source loss, characterized in that formed on the back of the reflector to perform a function to correct the flatness of the reflector.
The method of claim 10,
If the diffuser plate has L31 at height, the light guide plate has L32 at height, the reflector plate has L33 at height, and the aluminum plate has L34 at height, between L31, L32, L33 and L34. The size relationship is 9.2 to 9.3: 18.2 to 18.9: 1: 2.1 to 2.3, the structure of the flat light for preventing light source loss.
The method of claim 11,
Wherein L34 is 0.225mm to 0.25mm structure of the flat lighting for preventing light source loss.
The method according to claim 12, wherein the reflecting plate,
The light guide plate and the structure of the flat light for preventing light source loss, characterized in that formed on the back surface of the light guide plate in a state spaced apart from the vertical surface in close contact with the front surface of the insulating lens.
The method according to claim 13, wherein the aluminum plate,
The light guide plate and the structure of the flat light for preventing light source loss, characterized in that the laminated on the rear surface of the reflective plate in a state spaced apart from the vertical surface in close contact with the front surface of the insulating lens.
The method according to claim 14,
The length of the reflecting plate spaced apart from the vertical surface in close contact with the front surface of the light guide plate and the insulating lens portion is L41, and the length of the aluminum plate spaced apart from the surface perpendicular to the front surface of the light guide plate and the insulating lens portion is L41 and L42. In the case of the combined length, the L41: L42 corresponding to the size relationship between the L41 and the L42 is formed of 1: 1.2 to 1.3 flat panel lighting structure for preventing light source loss.
16. The method of claim 15,
L12 corresponding to the size relationship between the L12, the L21, the L33, and the L41: the L21: the L21: the L33: the L41 is a light source, characterized in that formed from 14.4 to 14.6: 5.76 to 5.92: 1: 3.2 to 3.4 Flat light structure to prevent loss.
18. The method of claim 16,
Between the diffused light cover and the insulating lens portion is formed in a cross-sectional shape each having a triangle A11 and A12 in the cross section, the hypotenuse of the triangular shape each having the area A11 and A12 facing the vertical axis. Flat light structure for preventing the loss of light source, characterized in that formed.
18. The method of claim 17,
And a vertex region formed by the hypotenuse and the base of the triangular shape having the areas A11 and A12, respectively, having a curvature r1.
19. The method of claim 18,
In the state where the LED element array is formed on the front surface of the PCB, an area A2 is formed in cross section between the PCB substrate and the insulating lens unit, and the area A2 is a shape in which an M shape is rotated 90 degrees clockwise. Flat structure for preventing light source loss, characterized in that formed to have a.
The method of claim 19,
At the top end of the M-shaped rotated 90 degrees clockwise two flat curves having a curvature r2 is formed.
The method of claim 20,
Light source loss, characterized in that the upper and lower portions of the region in which the insulating lens portion is inserted between the extrusion guide member and the region where the PCB substrate is in contact with the extrusion guide member are formed in the cross section, each having an area A31 and A32 in cross section. Flat lighting structure for prevention.
23. The method of claim 21,
The insulating lens unit is formed in a shape having a curvature r3 on the cross section in the space region having the area A31 and the area A32.
23. The method of claim 22,
The light source loss prevention is characterized in that the upper and lower portions of the region in which the insulating lens portion is in contact with the light guide plate among the regions where the insulating lens portion is inserted between the extrusion guide member are formed in the cross-sectional area having areas A31 and A32 respectively. For the structure of flat panel lighting.
24. The method of claim 23,
The insulating lens unit is formed in a shape having a curvature r4 in the cross section in the space area having the area A41 and the area A42.
27. The method of claim 24,
The area A11 or the area A12 corresponding to the size relationship between the area A11 or the area A12, the area A2, the area A31 or the A32, the area A41 or the A42: the area A2: the area A31 or the area A32 : The area A41 or fraud A42 is formed from 45 to 52: 23 to 21: 3.7 to 3.5: 1. Flat panel lighting structure for preventing light source loss.
26. The method of claim 25,
The magnitude relationship between the curvature r1, the curvature r2, the curvature r3, and the curvature r4 is formed as the r2> the r4> the r3> the r1 structure of the flat light for preventing light source loss.

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