KR20210000458U - Led backlight unit for use in mirror lighting - Google Patents

Abstract

Disclosed is an LED backlight unit for mirror lighting installed on a rear surface of a mirror. The disclosed LED backlight unit for mirror illumination includes: a substrate-the substrate is a first surface and a second surface facing each other, and a third surface that is perpendicular to the first surface, is formed to have a wider width than the first surface, and is opposite to each other. It has a fourth surface and is formed to be elongated in the longitudinal direction-and an LED module including a plurality of LED elements mounted along the length direction from the third surface, and is formed to be elongated and flexible to be installed in a curved section. A frame member comprising an LED module insertion portion formed of a material and allowing insertion of the LED module, and a light reflection portion having a curved surface to reflect light emitted from the plurality of LED elements, The LED module insertion portion and the light reflection portion are integrally formed.

Description

LED backlight unit for mirror lighting {LED BACKLIGHT UNIT FOR USE IN MIRROR LIGHTING}

The present invention relates to an LED backlight unit for mirror lighting, and specifically, to an LED backlight unit for mirror lighting that is installed along the edge at the rear of the mirror so that the mirror can be used even in a dark place without using a separate external lighting device. About.

LED (Light Emitting Diode) is an eco-friendly, semi-permanent, and because of the inherent advantages of LED that can implement various colors, it is applied to various other lighting devices, including being applied to a display device as a pixel itself or a backlight unit. Has become.

On the other hand, in order to eliminate the inconvenience of having to turn on a stand or a separate external lighting device to use the mirror in a state where external lighting is turned off (for example, in the dark at night or in a place where indoor lighting is dark), the so-called lighting function applied to the mirror is provided. Having a mirror has been introduced. Mirrors having such a conventional lighting function (hereinafter, simply referred to as'illumination mirror') are, for example, Korean Patent Publication 10-2012-0005909 (published on January 17, 2012), Korean Patent Publication 10-2013-0011396 (2013.01). 30. Publication) and Republic of Korea Utility Model Publication No. 0419587, etc., are disclosed in various documents in addition to these documents, and various products are being released.

This conventional lighting mirror has several disadvantages as follows.

First, in the case of applying an LED backlight unit using an LED module mounted with a plurality of LED chips in the conventional mirror lighting, when applied to the back of the mirror, especially when the illumination is not turned on, LED chips (or'dots (dots)') is transmitted through the mirror and is seen as it is, so there is a disadvantage of deteriorating the original function of the mirror itself. Even if the light-transmitting plate is interposed in the middle for a subtle backlight, there is a disadvantage that the dots are still transmitted through it.

Second, in the case of applying the LED backlight unit in a conventional lighting mirror, it is difficult to apply it to a mirror having a curved section because it is close to impossible to bend in the width direction. That is, as shown in Figs. 1 and 2, the wide surface f1 on which the LED chips 11 are mounted is parallel to the mirror 1 and the rear fixing plate 2 located on the rear surface of the mirror. It is installed in a form interposed between the rear fixing plate (2). In general, since the width (W1) of the substrate 12 on which the LEDs 11 are mounted is larger than the height (H1), the bending in the Z-axis direction is relatively large, whereas the bending in the Y-axis direction is Since there is little, in the case of installation in the form as shown in FIG. 2, in the case of installing the LED module in the curved section, the LED module must be installed in pieces, and in this case, the wiring becomes complicated.

Therefore, a method for solving the above problems is required in the art.

Republic of Korea Patent Publication 10-2012-0005909 (published on January 17, 2012) Republic of Korea Patent Publication 10-2013-0011396 (published on January 30, 2013)

The problem to be solved by the present invention is to provide an LED backlight unit for mirror illumination capable of solving the problem that dots are visible through the mirror as it is in the conventional illumination mirror.

Another problem to be solved by the present invention is that it is difficult to bend in the width direction in a conventional lighting mirror to which an LED module is applied, and an LED backlight unit for mirror lighting that can increase efficiency in installation work in a mirror having a curved section. Is to provide.

The LED backlight unit for mirror illumination installed on the rear surface of the mirror according to an aspect of the present invention for solving the above problem is a substrate-the substrate is a first surface and a second surface facing each other, and perpendicular to the first surface Is formed to have a wider width than the first surface, has a third surface facing each other, has a fourth surface, and is formed to be elongated in a length direction-and a plurality of LED elements mounted along the length direction from the third surface , An LED module, and an LED module insertion part that is formed of a flexible material that is formed to be elongated and can be installed in a curved section, and an LED module insertion part that allows the insertion of the LED module, and light to reflect the light emitted from the plurality of LED elements. And a frame member including a light reflecting portion having a reflective surface formed as a curved surface, and the LED module inserting portion and the light reflecting portion are integrally formed.

According to an embodiment, the frame member includes a first side surface that is an outer surface of the LED module insertion unit, a second side surface that is an outer surface of the light reflecting unit, and a bottom surface connecting the first side and the second side surface. Includes.

According to an embodiment, the first side surface has a first depression formed along the length direction for intervening the adhesive member, the second side surface has a second depression formed along the length direction for the insertion of the adhesive member, The bottom surface has a third depression formed along the longitudinal direction for interposition of the adhesive member.

According to an embodiment, the light reflecting unit includes a through hole formed along a length direction to allow insertion of a wire for shape maintenance.

" 형상의 단면을 갖도록 형성된다.According to one embodiment, the LED module insertion unit, in order to have an insertion slot for inserting the LED module along the length direction "

It is formed to have a cross section of the shape.

According to an embodiment, the first surface, the second surface, and the fourth surface are kept in contact with the inner surface of the insertion slot, and the third surface faces the light reflective surface.

The LED backlight unit for mirror illumination installed on the rear surface of the mirror according to another aspect of the present invention includes: a substrate-the substrate is a first surface and a second surface facing each other, and perpendicular to the first surface, than the first surface An LED module including a plurality of LED elements that are formed to have a wide width, have a third surface and a fourth surface opposite to each other, and are formed to be elongated in the length direction-and a plurality of LED elements mounted along the length direction from the third surface, and, It is formed of an elongated and flexible material that can be installed in a curved section, and an LED module insertion part that allows the insertion of the LED module, and a light reflective surface is formed in a curved surface to reflect the light emitted by the plurality of LED elements. A frame member including a light reflecting part, the LED module inserting part and the light reflecting part are integrally molded, and the LED module inserting part is a first side facing outward-the first side is the interposition of the adhesive member. Has a first recessed portion formed along the longitudinal direction for-and the light reflecting portion has a second side facing outward-the second side has a second recessed portion formed along the longitudinal direction for interposition of the adhesive member- The frame member includes a bottom surface connecting between the first side and the second side surface, the bottom surface having a third depression formed along the length direction for interposition of the adhesive member, and the The light reflecting unit is characterized in that it includes a through hole formed along a longitudinal direction to allow insertion of a wire for shape maintenance.

The present invention provides an improved LED backlight unit for mirror illumination, thereby solving the problem of seeing dots transmitted through the mirror as it is, and has the effect of increasing the efficiency of installation work by making it easy to bend even in a mirror having a curved section. have.

1 and 2 are views for explaining the characteristics of a conventional LED backlight unit for mirror illumination, FIG. 1 is an LED module, and FIG. 2 is a simplified cross-section when applied to a mirror,
3 is a view showing examples of a mirror to which the LED backlight unit 100 for mirror lighting according to an embodiment of the present invention is applied,
4 is a view for explaining the features of the LED backlight unit 100 for mirror illumination according to an embodiment of the present invention,
5 is a plan view (a) of the LED backlight unit 100 for mirror illumination of FIG. 4 and a cross-sectional view taken along III-III in FIG. 4 (b),
6 is an example of a state in which the LED backlight unit 100 for mirror illumination according to an embodiment of the present invention is applied to a mirror, bent along arrow A2 in the Y-axis direction according to the outer edge shape of the mirror,
7 is an example of a cross-sectional view taken along II or II-II in FIG. 3,
8 is a view showing the LED module 110 in the LED backlight unit 100 for mirror illumination of FIG. 4,
9 is a view showing a cross-section of the frame member 120 in the LED backlight unit 100 for mirror illumination of FIG. 4,
10 is a view showing a path in which light emitted from the LED elements 111 mounted on the LED module 110 is reflected by the reflective surface 1222 and goes out to the front of the mirror,
11 is a diagram illustrating a state in which a wire for shape maintenance is inserted into the through hole 1222 of the light reflecting part 122.

The present invention is an LED backlight unit for mirror lighting that can be applied to the back of a mirror of various shapes. It is installed so that the light emitted from the LED chips mounted on the LED module is reflected by the reflective surface and goes out to the front of the mirror. This is to make it possible to use the mirror without turning on the lighting device.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the accompanying drawings and embodiments are simplified and illustrated in order to facilitate understanding by those of ordinary skill in the art to which the present invention pertains.

3 is a view showing examples of a mirror to which the LED backlight unit 100 for mirror lighting according to an embodiment of the present invention is applied. Referring to FIG. 3, the LED backlight unit 100 for mirror illumination of the present invention is applied to a mirror (a) having a curved section, a circular or elliptical mirror (b), and further, a mirror of various shapes as shown. It allows you to use the mirror even when there is no external lighting.

FIG. 4 is a view for explaining the features of the LED backlight unit 100 for mirror illumination according to an embodiment of the present invention, and FIG. 5 is a plan view (a) and FIG. 4 of the LED backlight unit 100 for mirror illumination of FIG. 4 It is a cross-sectional view taken along III-III in (b), and FIG. 6 is a Y-axis direction according to the outer edge shape of the mirror when the LED backlight unit 100 for mirror lighting according to an embodiment of the present invention is applied to a mirror. It is an example of a bent state along arrow A2, FIG. 7 is an example of a cross-sectional view taken along II or II-II in FIG. 3, and FIG. 8 is an LED module 110 in the LED backlight unit 100 for mirror illumination of FIG. 4 ), and FIG. 9 is a view showing a cross section of the frame member 120 in the LED backlight unit 100 for mirror illumination of FIG. 4.

First, referring to FIG. 4, the LED backlight unit 100 for mirror illumination installed on the rear surface of the mirror (see reference numeral 1 in FIG. 7) includes an LED module 110 and a frame member 120.

Referring to FIGS. 4 and 8 together, the LED module 110 includes a plurality of LED elements 111 mounted along a length direction (A1 in FIG. 4 or A3 in FIG. 8) on the substrate 112 and the substrate 112. ). The substrate 112 is a first surface (F21) and a second surface (F22) that are opposite to each other, and a third surface that is perpendicular to the first surface (F21) and is formed to have a wider width than the first surface (F21). (F23) and a fourth surface (F24). The third and fourth surfaces F23 and F24 face each other. In addition, the substrate 112 is formed to be elongated in the longitudinal direction A3. The plurality of LED elements 111 are mounted along the length direction A3 on the third surface F23. The longitudinal direction (A3) is the -X axis direction based on the Cartesian coordinate system. In FIG. 8, it is illustrated that the plurality of LED elements 111 mounted on the LED module 110 are mounted adjacent to each other, but are not limited to such a mounting structure.

The first surface (F21), the second surface (F22) and the fourth surface (F24) of the LED module 110, as will be described later, the insertion slot formed in the LED module insertion portion 121 of the frame member 120 The third surface F23, which is maintained in contact with the inner surface of S1, on which the LED elements 111 are formed, is installed to face the light reflective surface 1221.

Referring to FIGS. 4 and 9 together, the frame member 120 is formed to be elongated and formed of a flexible material to be installed in a curved section. The frame member 120 includes an LED module insertion portion 121 having an insertion slot S1 formed therein to allow insertion of the LED module 110 and a light reflecting portion to reflect light emitted from the plurality of LED elements 111. Has 122. A light reflecting surface 1221 formed in a curved surface to reflect light is formed on the light reflecting part 122. The radius of curvature of the light reflecting surface 1221 is designed to allow appropriate light to exit forward in consideration of reflection angles with the plurality of LED elements 111 on the LED module 110 facing each other (see FIG. 10 ).

The frame member 120 is integrally molded. That is, the LED module insertion portion 121 and the light reflection portion 122 are integrally molded. The frame member 120 includes a first side (F11) serving as an outer surface of the LED module insertion unit 121, a second side surface (F22) serving as an outer surface of the light reflecting unit 122, and a first side (F11). And a bottom surface F13 connecting between the and the second side surface F22.

" 형상의 단면을 갖도록 형성된다. 즉, 삽입 슬롯(S1) 내에 엘이디 모듈(110)이 삽입되어 이탈되지 않고 유지될 수 있도록 "

" 형상의 단면을 갖도록 형성된다. 엘이디 모듈(110)이 삽입 슬롯(S1)에 장착된 상태에서는, 삽입 슬롯(S1)의 내측면(1211)과 엘이디 모듈의 제1 면(F21), 제2 면(F22) 및 제4 면(F24)이 서로 맞닿은 상태로 되고, 엘이디 소자들(111)이 장착된 면인 제3 면(F23)은 광 반사면(1221)과 마주하도록 설치되어 있으면서 제3 면(F23)의 일부는 삽입 슬롯(S1)의 내측면(1211)과 맞닿는다.In the frame member 120, the LED module insertion part 121 is "in order to have an insertion slot S1 for inserting the LED module 110 along the length direction."

"It is formed to have a cross-section of the shape. That is, the LED module 110 is inserted into the insertion slot (S1) so that it can be maintained without being separated"

When the LED module 110 is mounted in the insertion slot S1, the inner surface 1211 of the insertion slot S1 and the first surface F21 and the second surface of the LED module are The surface (F22) and the fourth surface (F24) are brought into contact with each other, and the third surface (F23), which is the surface on which the LED elements 111 are mounted, is installed to face the light reflective surface 1221, while the third surface A part of (F23) abuts the inner surface 1211 of the insertion slot (S1).

In the frame member 120, the first side surface F11, which is the outer surface of the LED module insertion part 121, has a first depression D1 formed along the length direction for the interposition of the adhesive member, and the light reflecting part ( The second side (F22), which is the outer surface of 122), has a second depression (D2) formed along the length direction for the interposition of the adhesive member, and the bottom surface (F13) is in the longitudinal direction for the interposition of the adhesive member. It has a third depression (D3) formed along the line. That is, each of the first side (F11), the second side (F12), and the bottom surface (F13) may be interposed with an adhesive member in order to be adhered and maintained to a predetermined support structure (refer to 2 or 3 in FIG. 7). Each has a depression (D1, D2, D3) so that.

The light reflecting part 122 includes a through hole 1222 formed along a length direction so that a wire for maintaining a shape can be inserted. When installed in a curved section from the rear of the mirror, the frame member 120 formed of a flexible material has a restoring force, so that a wire is inserted into the through hole 1222 in order to suppress the restoring force so that it can be maintained in a bent state. Can be. An example of a state in which the wire is inserted is shown in FIG. 11, and will be further described later.

Since the light reflecting surface 1221 should reflect light emitted from the light emitting elements 111 and send it out to the front of the mirror, it is preferable that the entire frame member 120 is flexibly formed of a material having a bright color. For example, the frame member 120 may be a material that has a white color and can be manufactured to be flexible without being rigid during final molding.

Referring to FIG. 5, the LED module inserting portion 121 and the light reflecting portion 122 are integrally formed of a flexible material in the insertion slot S1 of the frame member 120 (110; 111, 112). The cross section in this inserted state is shown in (b). Figure 5 (a) is a view viewed from the upper direction of (b). As shown in (b) of Figure 5, unlike the conventional LED module (see Figure 1), the LED module 110 of the present invention, when installed on the rear of the mirror, the LED elements 111 directly upward It is not installed to emit light, but is installed to emit light toward the reflective surface 1221 on the right side. That is, as previously discussed, the conventional LED module (see Fig. 1) is installed in a stable structure with a wide surface facing the floor, but there is a disadvantage that it is difficult to install in a curved section, but the LED module 110 of the present invention Is installed in the frame member 120, and as a result, if only looking at the LED module 110, it is installed in a vertically erected state, so that it can be easily bent together with the frame member 120, so installation is very easy even in a curved section. It's easy.

Referring to FIGS. 5 and 6 together, the bottom surface F13 of the frame member 120 is directed downward (ie, directed in the -Z-axis direction), and bent in the Y-axis side according to the shape of the mirror, That is, it can be installed so as to bend as shown in the arrow A2, or it can be installed so as to bend in the opposite direction to the -Y axis.

Referring to FIG. 7, a state in which the support structures 2 and 3 are adhered to the support structures 2 and 3 on the rear surface of the mirror 1 by using adhesive members 130a and 130b is shown. Arrow A4 is the direction in which the person looks at the mirror, and as shown, when the side support structure 3 is located on the first side F11 side of the frame structure 120, An adhesive member 130a is interposed between the first depression D1 and the side support structure 3 so that the frame structure 120 is fixed to the side support structure 3. In addition, an adhesive member 130b is interposed between the rear support structure 2 and the third depression D3 formed on the bottom surface F13 so that the frame structure 120 is stably fixed. The LED backlight unit 100 is stably fixed. Although it is shown that the side support structure is not located on the side of the second depression (D2) formed on the second side (F22), the side support structure (3) located on the first side (F11) is located on the second side In this case, an adhesive member is interposed between the second recessed portion D2 and the side support structure to stably fix the frame structure 120.

The adhesive member interposed between the first to third depressions (D1, D2, D3) and the supporting structure may be operated by applying a separate adhesive member, but it improves work efficiency and can be easily installed by the operator. It is preferable that double-sided tape is used to ensure that. That is, when the double-sided tape is attached to the first to third depressions (D1, D2, D3), and when installed on the rear of the mirror, the double-sided tape is removed and adhered to the supporting structures. Can be installed in any way.

Next, FIG. 10 is a diagram showing a path in which light emitted from the LED elements 111 mounted on the LED module 110 is reflected by the reflective surface 1222 and goes out to the front of the mirror. Referring to FIG. 10 together with FIG. 5, when the LED module 110 is inserted into the slot S1 of the LED module insertion unit 121 while the LED module 110 is erected, the LED elements 111 are mirrored in front of the mirror unlike the conventional one. Since it is not visible through through, it is possible to faithfully perform the mirror's original function. That is, as shown in FIG. 10, since the window through which the light exits the front of the mirror in the entire LED backlight unit is indicated by the reference numeral 140, the LED elements 111 are transmitted and invisible from the front of the mirror.

In addition, since the LED module 110 is mounted in an erected state, when the LED module 110 is installed by bending it in a curved section according to the shape of the mirror, it can be easily bent, thereby increasing the efficiency of work. The light emitted from the LED elements 111 goes out to the front of the mirror, as indicated by a plurality of arrows, and appropriate illumination of a necessary degree can be provided from the rear surface of the mirror. Accordingly, the radius of curvature of the light reflecting surface 1221 (see FIG. 5) should be designed to be directed from the rear of the mirror to the front in consideration of the positional relationship with the LED elements.

Finally, FIG. 11 is a view showing a state in which a wire 150 for shape maintenance is inserted into the through hole 1222 of the light reflecting part 122. Referring to FIG. 11 together with FIGS. 3 and 6, when the mirror has a curved section, after installing the LED backlight unit for mirror illumination of the present invention to fit the curved section, the adhesive member (see 130a and 130b in FIG. 7) and When the adhesion with the supporting structure (see 2 or 3 in FIG. 7) is weakened, there is a possibility that the original state of the straight line may be restored, so that the wire 150 is not restored to the straight line to compensate for this, the light reflecting unit 122 It is configured to be inserted into the through hole 1222 of. It is preferable that the wire 150 is coated while having a metal core such as copper.

As described above, the present invention can be bent and installed freely even in a curved section, so there is a disadvantage in the case of installing in a straight line as in the prior art, for example, it must be cut into several pieces and installed, and the complexity of wiring in the case of such installation. Or, by not installing at all in the curved section or installing it in a straight line, it is possible to overcome the disadvantage of not playing the role of the edge lighting of the mirror.

The LED backlight unit for mirror lighting according to the present invention can be applied to mirrors of various shapes as back lighting or edge lighting of the mirror, and furthermore, other furniture other than the mirror, such as wardrobe, bed or kitchen furniture, etc. It can be applied in a variety of areas where it is needed.

100: LED backlight unit for mirror lighting
110: LED module
111: LED element
112: substrate
120: frame member
121: module insert
122: light reflector
1221: light reflective surface
1222: through hole
130a, 130b: adhesive member
150: wire

Claims (7)

As an LED backlight unit for mirror lighting installed on the back of the mirror,
Substrate-The substrate has a first surface and a second surface facing each other, and a third surface that is perpendicular to the first surface and has a wider width than the first surface, and has a third surface and a fourth surface facing each other, in a longitudinal direction An LED module including a plurality of LED elements mounted along the length direction on the third surface and; And
It is formed of an elongated and flexible material that can be installed in a curved section, and an LED module insertion part that allows the insertion of the LED module, and a light reflective surface is formed in a curved surface to reflect the light emitted by the plurality of LED elements. Includes; a frame member including a light reflecting unit,
The LED module insertion portion and the light reflecting portion, characterized in that integrally molded, the LED backlight unit for mirror lighting.
The method according to claim 1, wherein the frame member,
A first side surface that is an outer surface of the LED module insertion part,
A second side surface that is an outer surface of the light reflecting unit,
An LED backlight unit for mirror illumination comprising a bottom surface connecting between the first side and the second side.
The method according to claim 2,
The first side surface has a first depression formed along the longitudinal direction for interposition of the adhesive member, the second side surface has a second depression formed along the longitudinal direction for interposition of the adhesive member, and the bottom surface is an adhesive member The LED backlight unit for mirror lighting, characterized in that it has a third depression formed along the longitudinal direction for the intervening of.
The method according to claim 1,
The light reflecting unit, characterized in that it comprises a through hole formed along the length direction to allow the insertion of the wire for maintaining the shape, the LED backlight unit for mirror lighting.
The method according to claim 1,
The LED module insertion unit, in order to have an insertion slot for inserting the LED module along the length direction "

LED backlight unit for mirror illumination, characterized in that it is formed to have a cross-section of a "shape.
The method of claim 5,
The first surface, the second surface, and the fourth surface are maintained in contact with an inner surface of the insertion slot, and the third surface faces the light reflective surface.
As an LED backlight unit for mirror lighting installed on the back of the mirror,
Substrate-The substrate has a first surface and a second surface facing each other, and a third surface that is perpendicular to the first surface and has a wider width than the first surface, and has a third surface and a fourth surface facing each other, in a longitudinal direction An LED module including a plurality of LED elements mounted along the length direction on the third surface and; And
It is formed of an elongated and flexible material that can be installed in a curved section, and an LED module insertion part that allows the insertion of the LED module, and a light reflective surface is formed in a curved surface to reflect the light emitted by the plurality of LED elements. Includes; a frame member including a light reflecting unit,
The LED module insertion part and the light reflection part are integrally molded,
The LED module insertion portion includes a first side facing outward-the first side surface has a first depression formed along a length direction for interposition of the adhesive member, and the light reflecting portion includes a second side facing outward-the The second side surface includes a second depression formed along the longitudinal direction for interposition of the adhesive member,
The frame member includes a bottom surface connecting between the first side and the second side surface, the bottom surface having a third depression formed along a length direction for interposition of the adhesive member,
The light reflecting unit, characterized in that it comprises a through hole formed along the length direction to allow the insertion of the wire for maintaining the shape, the LED backlight unit for mirror lighting.

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