KR20170001509U - A lighting frame - Google Patents

A lighting frame Download PDF

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Publication number
KR20170001509U
KR20170001509U KR2020150006829U KR20150006829U KR20170001509U KR 20170001509 U KR20170001509 U KR 20170001509U KR 2020150006829 U KR2020150006829 U KR 2020150006829U KR 20150006829 U KR20150006829 U KR 20150006829U KR 20170001509 U KR20170001509 U KR 20170001509U
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KR
South Korea
Prior art keywords
pattern
guide plate
light guide
light
angle
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KR2020150006829U
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Korean (ko)
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KR200484024Y1 (en
Inventor
윤준보
윤건욱
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한국과학기술원
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Priority to KR2020150006829U priority Critical patent/KR200484024Y1/en
Publication of KR20170001509U publication Critical patent/KR20170001509U/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
    • A47G1/06—Picture frames
    • A47G1/0616—Ornamental frames, e.g. with illumination, speakers or decorative features
    • A47G1/0622—Ornamental frames, e.g. with illumination, speakers or decorative features with illumination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0024—Household or table equipment
    • F21V33/0028—Decorative household equipment, e.g. plant holders or food dummies

Abstract

According to an embodiment of the present invention, a lighting frame includes a light guide plate; And a light source disposed on the side of the light guide plate and emitting light to the light guide plate, wherein the light guide plate comprises a pattern protruding downward from the lower surface of the light guide plate, Wherein the pattern includes a pattern side surface and a pattern side surface that connects the lower surface of the pattern surface and the lower surface of the light guide plate, wherein an angle between the pattern side surface and the lower surface of the light guide plate is 90 degrees Less than or equal.

Description

{A lighting frame}

The present invention relates to a lighting frame, and more particularly, to a lighting frame capable of improving visibility.

Since a normal frame does not include a light source therein, external illumination is required to ensure visibility in a dark place. However, when an external light source is used, there is a problem that light of uniform brightness can not be irradiated on the display, and installation and movement are difficult.

In order to solve such a problem, a conventional illuminated picture frame disclosed in Korean Utility Model Registration No. 20-0473864 is a method of placing a light source on a side surface of a display. In this case, similarly to the case of using an external light source, uniform light irradiation is difficult.

In addition, when a backlight is used, a light source is placed on the rear surface of the display. In this case, since the light must pass through the display, only a display capable of transmitting light can be used.

In addition, since the illuminated picture frame with the front light is provided with a light source on the front side of the display, a light guide plate for emitting light toward the front side of the display can be provided so that light reflected on the display can be seen. There is an advantage that it can be applied to opaque canvas, thick picture, etc. Korean Patent Laid-Open Publication No. 10-2014-0076680 discloses a lighting frame equipped with a conventional front light, in which an acrylic plate is inserted between a display and a light guide plate so as to prevent movement of the display, As shown in Fig. However, such a conventional method has the disadvantage that the manufacturing cost of the frame increases due to the additional member for pressurization, the light emitted from the light guide plate passes through the acrylic plate, the light efficiency decreases, and the thickness of the frame becomes thick. In addition, the illumination frame without the additional member disclosed in Korean Patent Laid-open No. 10-2003-0044194 is designed so that a light guide plate is inserted into the front of the display to emit light toward the display, And thus the manufacturing cost is lowered. The light guide plate disclosed in the above patent has a structure in which a pattern for scattering is placed on the upper part and light is diverted toward the display material. However, in such a structure, when the scattering structure is transparent, the light does not reach the display material but emits directly out through the scattering pattern to cause glare, or the display material may appear cloudy. Further, when the pattern is an opaque reflective pattern, there is a problem of covering the display. Also, the light guide plate disclosed in the patent does not meet the object of the invention in which the light guide plate replaces the protective member because the scattering pattern disposed on the upper part is exposed to the outside and is easily damaged. Korean Patent Laid-Open No. 10-2011-0058925 discloses an illuminated picture frame in which a triangular prism pattern, a dod prism, and a pyramid prism pattern are formed by projecting or recessed from the back surface of a light guide plate. However, as shown in Fig. 1, the prism pattern of the above-mentioned patent has a problem that even when light is reflected by the display object after the light is reflected by the prism pattern 1, the light emitting direction becomes oblique, It is not efficient because it shines most brightly on the side, not on the viewing direction. In addition, as shown in FIG. 2, the light incident on the prism pattern 1 can not be output to the display according to the incident angle, but may be scattered toward the observer and emitted. Therefore, There is a problem that it causes glare.

Korean Utility Model Registration No. 20-0473864 Korean Patent Publication No. 10-2003-0044194 Korean Patent Publication No. 10-2014-0076680 Korean Patent Publication No. 10-2011-0058925

The object of the present invention is to provide a lighting frame capable of improving visibility.

According to an embodiment of the present invention, a lighting frame includes a light guide plate; And a light source disposed on the side of the light guide plate and emitting light to the light guide plate, wherein the light guide plate comprises a pattern protruding downward from the lower surface of the light guide plate, Wherein the pattern includes a pattern side surface and a pattern side surface that connects the lower surface of the pattern surface and the lower surface of the light guide plate, wherein an angle between the pattern side surface and the lower surface of the light guide plate is 90 degrees Less than or equal.

The lighting frame according to the embodiment of the present invention can reduce the manufacturing cost by using the light guide plate as the protecting member of the display, and it is possible to reduce the manufacturing cost by reducing the number of the light sources because the light efficiency is high, It is possible to protect the pattern from external physical damage by inserting a minute pattern in the lower part of the light guide plate and to reduce scattering by using an inverted prism structure or columnar structure in a minute pattern for outgoing light and to control the density or size of the pattern To adjust partial brightness or to insert text, pattern, pattern, etc. at arbitrary brightness. Accordingly, the present invention can be applied not only to picture frames, but also to fields such as signboards, lighting devices, and the like.

Figs. 1 and 2 are views showing a section of a prism pattern formed on a conventional light guide plate.
3 is a cross-sectional view of a lighting frame according to an embodiment of the present invention;
Figs. 4 to 12 are cross-sectional views of a light guide plate and a pattern according to an embodiment of the present invention shown in Fig.
13 and 14 are sectional views of a lighting frame according to another embodiment of the present invention.

The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments, which are to be taken in conjunction with the accompanying drawings. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In the following description of the present invention, a detailed description of related arts will be omitted if it is determined that the gist of the present invention may be unnecessarily obscured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 3 is a cross-sectional view of a lighting frame according to an embodiment of the present invention.

3, the illumination frame 1000 according to an embodiment of the present invention may include a light guide plate 100 and a light source 200. [

The light guide plate 100 according to an embodiment of the present invention may include a pattern 110 protruding from the lower surface of the light guide plate 100 to the lower side of the light guide plate 100. [ At this time, a plurality of patterns 110 may be formed on the light guide plate 100.

The pattern 110 may be integrally formed with the light guide plate 100 by cutting or assembling the substrate prepared by the light guide plate 100. The pattern 110 may be formed on the light guide plate 100 100 may be formed as separate members. At this time, the pattern 110 may be formed of the same material as the material of the light guide plate 100, or may be formed of a material different from the material of the light guide plate 100. The refractive index of the material constituting the pattern 110 may be the same as or different from the refractive index of the material constituting the light guide plate 100.

The light source 200 according to an embodiment of the present invention may be an LED that emits light to the light guide plate 100, and may be an LED.

Figs. 4 to 12 are cross-sectional views of a light guide plate and a pattern according to an embodiment of the present invention shown in Fig. 3, illustrating reflection and refraction of light occurring in a light guide plate and a pattern.

4, in the electronic frame 1000 according to one embodiment of the present invention, the pattern 110 is formed on the lower surface 111 and the lower surface 111 of the pattern and the lower surface 120 of the light guide plate 100, (Not shown).

Light emitted from the light source 200 may be incident on the pattern 110 and may be emitted to a display located below the light guide plate 100. At this time, the angle? Between the pattern side surface 115 and the lower surface 120 of the light guide plate 100 may be less than or equal to 90 degrees. When light incident on the pattern 110 is reflected by the pattern side surface 115 when the angle a formed by the pattern side surface 115 and the bottom surface 120 of the light guide plate 100 is less than or equal to 90 degrees, There is an advantage that the light is not emitted to the direction of the observer but is always emitted in the direction of the display disposed at the lower portion of the light guide plate 100. [

5A is a diagram illustrating a case where the refractive index of the material constituting the pattern 110 is the same as the refractive index of the material constituting the light guide plate 100. FIGS. 5B and 5C are diagrams showing the case where the refractive index of the material constituting the pattern 110 is And the refractive index of the material constituting the light guide plate 100 are different from each other.

The light incident on the pattern 110 is entirely reflected by the upper surface of the light guide plate 100 except for the case where the pattern 110 is very close to the light source 200 and light radiated directly from the light source 200 is incident on the pattern 110. [ The angle of incidence of the light is greater than or equal to the critical angle c of the material constituting the light guide plate 100. [

5A, when the refractive index of the material constituting the pattern 110 is equal to the refractive index of the material constituting the light guide plate 100, when light is incident on the pattern 110 from the light guide plate 100, The refraction angle of the light incident on the pattern 110 is equal to the incident angle. In other words, the refraction angle [theta] cr of the light incident on the pattern 110 at the critical angle [theta] c of the material constituting the light guide plate 100 is equal to the critical angle [theta] c of the material constituting the light guide plate 100. [ The light incident on the pattern 110 through the point P at which the pattern side surface 115 shown in FIG. 5A contacts the bottom surface 120 of the light guide plate 100 is light within the range between L 1 and L 3, (110), and then proceeds to a range between L2 and L4.

5B, when the refractive index of the material constituting the pattern 110 is larger than the refractive index of the material constituting the light guide plate 100, the incident angle thereof is greater than the critical angle c of the material constituting the light guide plate 100 All light, such as large or small, can be incident on the pattern 110. Also, when light is incident on the pattern 110 from the light guide plate 100, refraction occurs, and the refraction angle of the light incident on the pattern 110 becomes smaller than the incident angle. In other words, the refraction angle [theta] cr of the light incident on the pattern 110 at the critical angle [theta] c of the material constituting the light guide plate 100 becomes smaller than the critical angle [theta] c of the material constituting the light guide plate 100. [ Therefore, the light incident on the pattern 110 passing through the point P at which the pattern side surface 115 shown in FIG. 5B contacts the bottom surface 120 of the light guide plate 100 is light in the range between L 1 and L 3, (110), and is then refracted to the range between L2 and L4.

5C, when the refractive index of the material constituting the pattern 110 is smaller than the refractive index of the material constituting the light guide plate 100, the incident angle of the material configuring the light guide plate 100 is greater than the critical angle of the material constituting the light guide plate 100, (θc 1) greater than or equal to can be joined to a second critical angle (θc 2) small only light pattern 110 than. Here, the second critical angle? C 2 is a critical angle when light enters the material constituting the pattern 110 from the material constituting the light guide plate 100. When the incident angle of light incident on the light guide plate 100 in a pattern 110 larger than the second critical angle (θc 2), and reflected light does not incident on the pattern 110. Also, when light is incident on the pattern 110 from the light guide plate 100, refraction occurs, and the refraction angle of the light incident on the pattern 110 becomes larger than the incident angle. In other words, the refraction angle (θc 1 r) of the light incident on the pattern 110 by the critical angle (θc 1) of the material constituting the light guide plate 100 is larger than the critical angle (θc 1) of the material constituting the light guide plate 100, do. Therefore, the light incident on the pattern 110 passing through the point P at which the pattern side surface 115 shown in FIG. 5C contacts the bottom surface 120 of the light guide plate 100 is light within the range between L 1 and L 3, (110), and is then refracted to the range between L2 and L4.

Hereinafter, a case where the refractive index of the material constituting the pattern 110 is the same as the refractive index of the material constituting the light guide plate 100 will be exemplified.

6, when the light incident on the pattern 110 reaches the patterned surface 111 directly without being reflected by the patterned side surface 115, the light is reflected on the patterned surface 111, Glare may occur due to scattering in the observer direction. Accordingly, when all the light emitted through the pattern surface 111 is reflected on the pattern side surface 115 and then reaches the pattern surface 111, the light is not reflected on the pattern surface 111, But is always emitted in the direction of the display material disposed at the lower portion of the light guide plate 100. [

7A, when the angle a formed by the pattern side surface 115 and the bottom surface 120 of the light guide plate 100 is constant, the pattern side surface 115 and the bottom surface 120 of the light guide plate 100 Of the light incident on the pattern 110 at the critical angle c of the material constituting the light guide plate 100 may be equal to or greater than the angle? Cr 'of the refraction angle? The angle of incidence of the light incident on the pattern 110 and the angle 120 between the incident angle of the light incident on the pattern 110 and the lower surface 120 of the light guide plate 100 is greater than the angle of incidence of light incident on the pattern 110 at the critical angle? 6, a part of the light incident on the pattern 110 directly reaches the patterned surface 111, and the reflected light is reflected toward the observer's direction Glare may occur due to scattering. The angle a formed between the pattern side surface 115 and the lower surface 120 of the light guide plate 100 is smaller than the refraction angle cr of the light incident on the pattern 110 at the critical angle c of the material constituting the light guide plate 100 , The light incident on the pattern 110 can be prevented from reaching the pattern surface 111 directly.

7B, if the height h of the pattern 110 is not sufficient, the angle? Formed by the pattern side surface 115 and the lower surface 120 of the light guide plate 100 is smaller than the angle? Of the light incident on the pattern 110 at a critical angle c of the material constituting the pattern 110 is larger than the angle? Cr 'of the refraction angle? Cr of the light incident on the pattern 110, And the reflected light is scattered in the direction of the observer, so that glare may occur. Therefore, since the height h of the pattern 110 must satisfy a predetermined condition, it is possible to prevent all the light incident on the pattern 110 from directly reaching the pattern surface 111.

A first point A where the pattern surface 111 and the pattern side surface 115 are in contact with each other and a second point B where the pattern side surface 115 and the bottom surface 120 of the light guide plate 100 are in contact with each other, , When the largest vertical distance from the first point A to the straight line BC perpendicular to the lower surface 120 of the light guide plate 100 including the second point B is d, It is possible to prevent all light incident on the pattern 110 from directly reaching the pattern surface 111 when the height h of the pattern 110 is greater than or equal to d * cot (? Cr).

9, the angle a formed by the pattern side face 115 and the bottom face 120 of the light guide plate 100 is constant, the cross section of the pattern 110 is formed to be bilaterally symmetrical, 110 and the width of the lower 120 of the light guide plate (100), d 1 is formed, in the case if the pattern width of 111 is d 2, the height (h) of the pattern 110 is (d 1/2 + d 2/2) * If cot (greater than or equal to θcr), all the light incident on the pattern 110, if the pattern can be prevented from directly reaching the 111.

5C, when the refractive index of the material constituting the pattern 110 is smaller than the refractive index of the material constituting the light guide plate 100, the critical angle? C of the material constituting the light guide plate 100 The refractive index of the material constituting the pattern 110 is larger than the refractive index of the material constituting the light guide plate 100 because the refractive angle? Cr of the light incident on the pattern 110 is larger than the critical angle? C of the material constituting the light guide plate 100. Therefore, The height h of the pattern 110 necessary for reaching all the light incident on the pattern 110 to the pattern side 115 is small compared with the case where the refractive index of the pattern 110 is equal to the refractive index of the pattern 110. [

10B, the first pattern side surface 116, which is in contact with the lower surface 120 of the light guide plate 100, and the second pattern side surface 117, which is in contact with the pattern surface 111, The angle? Between the first pattern side surface 115 and the lower surface 120 of the light guide plate 100 is smaller than the light incident on the pattern 110 at the critical angle? C of the material constituting the light guide plate 100. [ The angle? Formed by the second pattern side surface 117 and the pattern surface 111 is smaller than the angle? Cr 'of the refraction angle? Cr of the pattern 110 ) Of the refracted angle θcr of the light incident on the pattern 110, it is possible to prevent all the light incident on the pattern 110 from directly reaching the pattern surface 111. In this case, as compared with the pattern 110 shown in FIG. 10A, a part of the light incident on the upper part of the pattern 110 shown in FIG. 10A is incident on the pattern side 115 in the pattern 110 , It is refracted without being reflected on the pattern side surface 115 and emitted. On the other hand, in the case of the pattern 110 shown in FIG. 10B, all the light incident on the first pattern side surface 116, which is in contact with the lower surface 120 of the light guide plate 100, The light is reflected from the first pattern side surface 116 to the second pattern side surface 117 or the pattern surface 111. In this case, Some of the light reaching the second pattern side surface 117 is refracted without being reflected on the second pattern side surface 117 because the incident angle? Becomes smaller than the critical angle of the material constituting the pattern 110 However, since the position to be emitted is emitted from the lower portion closer to the display than the pattern 110 shown in Fig. 10B, the light efficiency can be further increased.

Also, as shown in FIG. 10C, the pattern side surface 115 may be formed as a concavely curved surface toward the lower side of the light guide plate 100. FIG. Similarly, the angle? Between the pattern side surface 115 and the lower surface 120 of the light guide plate 100 is greater than the angle of refraction angle of the light incident on the pattern 110 at the critical angle? C of the material constituting the light guide plate 100 of the light incident on the pattern 110 at the critical angle c of the material constituting the light guide plate may be smaller than the angle of refraction angle of the light incident on the pattern 110, the light incident on the pattern 110 can be prevented from reaching the pattern surface 111 directly by preventing the light incident on the pattern 110 from reaching the pattern surface 111 directly. The position where the light is refracted and emitted without being reflected is emitted from the lower portion closer to the display than the pattern 110 shown in FIG. 10B, so that the light efficiency can be further increased.

11, the angle? Between the pattern side surface 115 and the lower surface 120 of the light guide plate 100 may be 90 degrees. In the case of the pattern 110 shown in Figs. 3 to 10, since the pattern side surface 115 is a curved surface or an inclined surface, distortion may occur on a display displayed to an observer. However, since the pattern side surface 115 of the pattern 110 shown in Fig. 11 is not a curved surface or an inclined surface, distortion of the display can be minimized.

As shown in FIGS. 12A and 12B, the pattern 110 may include a first pattern 112 and a second pattern 113 disposed under the first pattern 112. The light emitted from the light source 200 may be incident on the first pattern 112 and incident on the second pattern 113 and may be emitted to a display located below the light guide plate 100. At this time, the refractive index of the material constituting the first pattern 112 may be greater than the refractive index of the material constituting the light guide plate 100 and the material constituting the second pattern 113. When the refractive index of the material constituting the first pattern 112 is greater than the refractive index of the material constituting the light guide plate 100 and the material constituting the second pattern 113 as described above, 112 may be incident on the first pattern 112 with an incident angle equal to or greater than a critical angle c of a material constituting the light guide plate 100. [ 12A, the refraction angle [theta] of the light L4 incident at a critical angle of 90 degrees is converted into the light that forms the second pattern 113 in the material constituting the first pattern 112. In this case, Or the second pattern 113 may be formed of a material constituting the first pattern 112 among the refraction angles of the light incident on the first pattern 112 as shown in FIG. 12B, The light that is larger than the critical angle when the light is incident on the material constituting the first pattern 112 is reflected on the first pattern side surface 116 so that light is incident from the first pattern 112 to the second pattern 113 The light can be refracted without any reflected light, and the light can be incident on the second pattern 113. That is, light incident on L1 of FIG. 12A and FIG. 12B travels to L3 via L2 and light incident on L4 travels through L5 to L6, so that light in a range between L1 and L4 is incident on the pattern 110 And then refracted in the range between L3 and L6. In this case, since much light can be incident on the pattern 110 as compared with the pattern shown in FIG. 5C, there is an advantage that the light efficiency can be increased.

13 and 14 are sectional views of a lighting frame according to another embodiment of the present invention. 13, the light guide plate 100 according to another embodiment of the present invention may include a first region 130 and a second region 140. In addition,

At this time, the density of the pattern 110 formed in the first region 130 may be different from the density of the pattern 110 formed in the second region 140. Since the density of the pattern 110 formed in the first region 130 is greater than that of the pattern 110 formed in the second region 140 as shown in FIG. 13, The amount of light emitted through the first region 110 is greater than the amount of light emitted through the pattern 110 formed in the second region 140. Therefore, the area of the display disposed under the first area 130 can be illuminated brighter than the area of the display disposed below the second area 140. [

14, the light guide plate 100 according to another embodiment of the present invention may include a first region 130 and a second region 140. In addition,

In this case, the size of the pattern 110 formed in the first region 130 may be different from the size of the pattern 110 formed in the second region 140. The size of the pattern 110 formed in the first region 130 is larger than the size of the pattern 110 formed in the second region 140 as shown in FIG. The amount of light emitted through the first region 110 is greater than the amount of light emitted through the pattern 110 formed in the second region 140. Therefore, the area of the display disposed under the first area 130 can be illuminated brighter than the area of the display disposed below the second area 140. [

As described above, by controlling the density or size of the pattern according to the position of the light guide plate, it is possible to emit uniform light, or to control the brightness of a specific position, thereby gradually increasing the brightness or brightness of the pattern or designing patterns, have.

The features, structures, effects and the like described in the embodiments are included in one embodiment of the present invention and are not necessarily limited to only one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments can be combined and modified by other persons having ordinary skill in the art to which the embodiments belong. Accordingly, the contents of such combinations and modifications should be construed as being included in the scope of the present invention.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that differences between such modifications and applications are intended to be included within the scope of the present invention as defined by the appended claims.

100: light guide plate
110: pattern
111: When patterned
112: 1st pattern
113: the second pattern
115: Pattern side
116: first pattern side
117: Second pattern side
120: When the light guide plate
130: first region
140: second area
200: Light source
1000: lighting picture frame

Claims (8)

A light guide plate; And
And a light source disposed on the side of the light guide plate and emitting light to the light guide plate,
Wherein the light guide plate includes a pattern protruding downward from the lower surface of the light guide plate,
Light emitted from the light source is incident on the pattern and is emitted downward of the light guide plate,
Wherein the pattern includes a pattern surface and a pattern side surface connecting the bottom surface of the pattern and the bottom surface of the light guide plate,
The angle formed between the pattern side surface and the lower surface of the light guide plate is less than or equal to 90 degrees,
Lighting frame. The method according to claim 1,
Wherein all the light emitted through the lower surface of the pattern is reflected on the side surface of the pattern and reaches the lower surface of the pattern,
Lighting frame. The method according to claim 1,
Wherein the angle formed by the side surface of the pattern and the bottom surface of the light guide plate is greater than or equal to the angle of refraction of the light incident on the pattern,
Lighting frame. The method according to claim 1,
At a first point at which the pattern bottom surface is in contact with the pattern side surface and at a second point at which the pattern side surface and the bottom surface of the light guide plate are in contact with each other,
Wherein a maximum value of a vertical distance from the first point to a straight line perpendicular to the lower surface of the light guide plate is d and a refraction angle of light incident on the pattern at a critical angle of a material constituting the light guide plate is θcr when,
The height h of the pattern may be,
h > = d * cot ([theta] cr)
Lighting frame. The method according to claim 1,
Wherein the pattern side surface includes a first pattern side surface in contact with a lower surface of the light guide plate and a second pattern side surface in contact with the pattern surface,
The angle formed by the side of the first pattern and the bottom surface of the light guide plate is smaller than the angle of refraction of the light incident on the pattern by the critical angle of the material constituting the light guide plate,
Wherein the angle formed by the side of the second pattern and the bottom of the pattern is greater than or equal to the angle of refraction of the light incident on the pattern,
Lighting frame. The method according to claim 1,
Wherein the pattern side surface is formed as a concave curved surface toward the lower side of the light guide plate,
The angle formed by the side surface of the pattern and the lower surface of the light guide plate is smaller than the angle of refraction of the light incident on the pattern by the critical angle of the material constituting the light guide plate,
Wherein the angle formed between the pattern side surface and the pattern surface is greater than or equal to an angle of refraction of light incident at a critical angle of a material constituting the light guide plate,
Lighting frame. The method according to claim 1,
Wherein the light guide plate includes a first region and a second region,
The density of the pattern formed in the first region is larger than the density of the pattern formed in the second region,
Lighting frame. The method according to claim 1,
Wherein the light guide plate includes a first region and a second region,
The size of the pattern formed in the first region is larger than the size of the pattern formed in the second region,
Lighting frame.
KR2020150006829U 2015-10-21 2015-10-21 A Front Light KR200484024Y1 (en)

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KR20100091692A (en) * 2009-02-11 2010-08-19 (주)이보라이트 The frame of a picture with light emitting diodes
KR20110058925A (en) 2009-11-27 2011-06-02 주식회사 송산 Sign board
KR20140076680A (en) 2012-12-12 2014-06-23 주식회사유담 Lighting picture frame

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KR20030044194A (en) 2001-11-29 2003-06-09 주식회사 테크자인 Displaying device using front light panel
KR20040073864A (en) 2003-02-15 2004-08-21 (주)인터랙티비 Application downloading method which can download application packs and install automatically, make menu dynamically and integrated home server system using it
KR20090034608A (en) * 2007-10-04 2009-04-08 삼성전자주식회사 All-in-one type light guide plate, backlighting apparatus employing the same
KR20100052275A (en) * 2008-11-10 2010-05-19 삼성전자주식회사 All-in-one type light guide plate having a light emitting part with curved sidewall, method of fabricating the same and display apparatus employing the same
KR20100091692A (en) * 2009-02-11 2010-08-19 (주)이보라이트 The frame of a picture with light emitting diodes
KR20110058925A (en) 2009-11-27 2011-06-02 주식회사 송산 Sign board
KR20140076680A (en) 2012-12-12 2014-06-23 주식회사유담 Lighting picture frame

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