KR20110132754A - Backlight unit comprising sideview light emitting device package - Google Patents

Backlight unit comprising sideview light emitting device package Download PDF

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Publication number
KR20110132754A
KR20110132754A KR1020100052266A KR20100052266A KR20110132754A KR 20110132754 A KR20110132754 A KR 20110132754A KR 1020100052266 A KR1020100052266 A KR 1020100052266A KR 20100052266 A KR20100052266 A KR 20100052266A KR 20110132754 A KR20110132754 A KR 20110132754A
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KR
South Korea
Prior art keywords
light emitting
emitting device
guide plate
backlight unit
device packages
Prior art date
Application number
KR1020100052266A
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Korean (ko)
Inventor
오승현
정보현
Original Assignee
주식회사 루멘스
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Priority to KR1020100052266A priority Critical patent/KR20110132754A/en
Publication of KR20110132754A publication Critical patent/KR20110132754A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

PURPOSE: A backlight unit including side view light emitting device packages is provided to reduce the width of a bezel by using a flat substrate and mounting the side view light emitting device packages on the edge of the flat substrate. CONSTITUTION: An edge type backlight unit(2) includes a plurality of light emitting device packages and a light guide plate(40). A substrate(10) is arranged on the lower side of the light guide plate. A reflection sheet(30) is attached between the substrate and the light guide plate. The plurality of light emitting device packages are mounted on the edge of the substrate which is not covered with the reflection sheet and emit light to the side of the light guide plate.

Description

BACKLIGHT UNIT COMPRISING SIDEVIEW LIGHT EMITTING DEVICE PACKAGE}

The present invention relates to a backlight unit having a plurality of light emitting device packages, and more particularly, to an edge type backlight unit including side light emitting light emitting device packages that emit light toward a side of a light guide plate.

A light emitting diode is a device that converts electricity into light using characteristics of a compound semiconductor, and has been variously used and developed as a next-generation light source. Such a light emitting diode is very advantageous in terms of color expression and power consumption, and thus is very much attracting attention as a light source that replaces a conventional cold cathode fluorescent lamp (CCFL) used in a backlight unit (BLU) of a notebook computer or a TV.

Backlight unit used in LED TV or LED monitor is largely divided into edge type and direct type. As shown in FIG. 1A, in the direct type backlight unit, tens to hundreds of LED packages 2-1 (shown as three for convenience in FIG. 1A) are arranged in a matrix form on the flat substrate 1-1. And a reflecting sheet 3-1 on the substrate 1-1. Light emitted from the LED packages 2-1 is passed through the diffusion sheet 5-1 and other sheets 6-1, and the LCD panel 6-1 (other sheets and LCD panels is shown as one for convenience). In a straight line toward the light emitting surface of the TV or monitor. There is no light guide plate in the direct backlight unit.

On the other hand, as shown in FIG. 1B, the edge type backlight unit includes a bar type LED module in which a plurality of top view LED packages 2-2 are mounted on a bar substrate 1-2. Since the light is emitted from the LED package, the light emitted from the LED package is vertically bent through the light guide plate 4 to proceed toward the light emitting surface of the LED TV and the monitor. Unlike the direct type, the reflective sheet 3-2 is isolated from the substrate 1-2 and is located below the light guide plate 4.

Edge type backlight units have recently been widely developed because they can reduce the number of LED packages compared to the direct type, which has significant advantages in power consumption and cost. However, in the current edge-type backlight unit, as shown in FIGS. 1B and 1C, a bar-shaped LED module in which a plurality of top-view LED packages are mounted is used. The LED module of the bar is disposed, i) the bad occurrence rate in the process of attaching the bar LED module to the backlight, ii) the bar LED module must be attached to the side of the bar (1-2) of the body of the bar The width of the bezel portion of the LED TV or the LED monitor is wider by the thickness and the height of the top view light emitting diode package 2-2 and the sum of the separation distance between the package 2-2 and the light guide plate (p of FIG. 1C). There are disadvantages to losing. In LED TVs and monitors, the heights of the substrates 1-2 and the package 2-2 are not covered by the bezel of the TV and the monitor because they cannot emit light from the light emitting surface. Since it greatly affects the commercialization of LED TVs and monitors, it can be said to be a major disadvantage of the edge type backlight unit in addition to the defective rate.

The present invention seeks to overcome the disadvantages of the disadvantages of the conventional edge type backlight unit and the limitation of the bezel width by using the novel edge type backlight structure.

In order to solve the above problems, an edge type backlight unit of the present invention comprising a plurality of light emitting device packages and a light guide plate according to an embodiment of the present invention, a flat substrate disposed on the lower portion of the light guide plate, and And a reflective sheet attached between the substrate and the light guide plate, wherein the plurality of light emitting device packages are mounted at edges of the substrate not covered by the reflective sheet to emit light toward the side of the light guide plate. It is characterized in that it is a type (sideview) light emitting device package.

That is, although the light emitting device packages are an edge type disposed at the edge of the backlight unit, a plurality of towers are mounted by using a flat plate substrate mainly used for direct type and side emitting light emitting device packages not used for the edge type at the edge of the substrate. It can be said to be a groundbreaking configuration that is significantly different from the existing edge type backlight unit, in which a bar-shaped LED module in which view type light emitting device packages are mounted sideways and disposed on a side of a light guide plate.

In the present invention, in order for the light emitted from the side-emitting light emitting device packages to be efficiently absorbed into the light guide plate, the separation distance to the light guide plate may be 0.5 mm or less.

In the present invention, the sum of the thickness of the reflective sheet and the thickness of the light guide plate may be 1.0 times to 1.3 times the height of the plurality of side light emitting device packages.

In the present invention, the plurality of side-emitting light emitting device packages may be mounted only at the shorter edges of the long axis edges and the short axis edges of the substrate.

In the present invention, the side length (e) of the plurality of side-emitting light emitting device packages and the separation distance (a) between the light guide plate and the package are

Figure pat00001
It can be designed to satisfy.

In the present invention, the height (d) and the side length (e) of the plurality of side-emitting light emitting device packages

Figure pat00002
It can be designed to satisfy. This is an optimal condition for stably mounting side light emitting device packages on a flat substrate while reducing bezel thickness of LED TVs and monitors in which a backlight unit is used.

In the present invention, the plurality of side-emitting type light emitting device packages may be asymmetric with respect to the horizontal center axis line of the light emitting part of the packages. Specifically, the packages may be designed such that the height d2 below the center line is longer than the height d1 above the center line of the light emitting unit. This is to achieve perfect coupling by perfectly matching the horizontal center axis of the light guide plate and the horizontal center axis of the light emitting part so that the light emitted from the plurality of side light emitting device packages is absorbed by the light guide plate.

The present invention also provides a method of mounting a plurality of side-emitting light emitting device packages only at an edge portion of a substrate, attaching a reflective sheet to the remaining regions of the substrate except for the edge region on which the packages are mounted, and, on the reflective sheet. A method of manufacturing an edge type backlight unit, comprising: disposing a light guide plate; and disposing a diffusion sheet on the light guide plate.

In the mounting step, a plurality of side-emitting light emitting device packages may be mounted only at one of the long axis edges and the short axis edges of the substrate.

In the above manufacturing method, in order for the light emitted from the side-emitting light emitting device packages to be efficiently absorbed into the light guide plate, the separation distance to the light guide plate may be 0.5 mm or less. In addition, the sum of the thickness of the reflective sheet and the thickness of the light guide plate may be 1.0 to 1.3 times the height of the plurality of side light emitting device packages.

In the manufacturing method, the side length (e) of the plurality of side light emitting device packages and the separation distance (a) between the light guide plate and the package are

Figure pat00003
It can be manufactured to satisfy.

The backlight unit according to the present invention uses a bar-shaped LED module by fabricating a backlight unit using a flat substrate and mounting a side view light emitting device package on the edge of the flat substrate despite the edge type as described above. Compared with the conventional method, the bezel width of the LED TV or the LED monitor in which the backlight unit is used may be reduced, and the defect rate in the manufacturing process of the backlight unit and the LED TV may be lowered.

Specifically, the edge type backlight unit according to an embodiment of the present invention has no substrate at the edge portion and the separation distance between the light guide plate and the LED package is also reduced, so that the width of the portion corresponding to the bezel portion of the LED TV and the monitor is remarkably reduced. Decreases. In addition, the edge type backlight unit according to the present invention, the width of the bezel portion should be secured by the height of the top view LED package included in the edge type backlight unit side by side attached to the LED module, the side view LED package Only the side length of (20) corresponds to the bezel portion, and the side length can be designed to be very short, so the width of the bezel portion can be reduced.

In addition, in the conventional edge type backlight unit, various failure rates such as defects caused by adhesives in the process of attaching the bar-shaped LED module to the frame of the backlight unit are considerably high, but the edge type backlight unit according to an embodiment of the present invention Since the backlight unit is manufactured using a flat panel substrate and side view LED packages mounted thereon, a process of attaching the LED module to the frame of the backlight unit is not necessary, and the above defect does not occur.

In addition, the side view LED packages are mounted only at the short and long edges of the flat substrate to reduce the total number of LEDs entering the backlight unit while reducing the distance between the package and the light guide plate (a) and the thickness of the reflective sheet (c). And the sum of the thickness b of the light guide plate b + c is 1.0 to 1.3 times the height of the side-view LED package d, and the height below the center line rather than the height d1 above the center line of the light emitting portion of the packages ( Another design of the present invention is that by designing the longer d2), the light emitted from the LED package is completely absorbed by the light guide plate to optimize the light efficiency of the edge type backlight unit.

1A is a cross-sectional view of a conventional direct backlight unit.
1B is a cross-sectional view of a conventional edge type backlight unit.
1C is a plan view of a portion of a light guide plate that is part of a conventional edge type backlight unit.
2 is a cross-sectional view of a novel edge type backlight unit according to an embodiment of the present invention, showing a right half thereof.
3 is a plan view of a portion of a light guide plate that is part of a novel edge type backlight unit according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. However, it is to be understood that the invention may be embodied in different forms than the details set forth herein and is not limited to the following examples.

The same reference numerals are used for the same structures or components (parts) throughout the drawings, and the drawings are schematically illustrated, and the relative dimensions and ratios in the drawings may be somewhat exaggerated or reduced for clarity and convenience. .

Referring now to FIG. 2, there is shown a front view of an edge type backlight unit 2 according to an embodiment of the invention. The edge type backlight unit 2 includes a flat substrate 10, a reflective sheet 30 attached to the substrate 10, a light guide plate 40 disposed on the reflective sheet, and the reflective sheet 30 not attached thereto. It is configured to include a side light emitting (side view) LED package 20 mounted on the edge of the substrate 10.

FIG. 2 illustrates only the right half of the edge type backlight unit 20, and a plurality of side view LED packages 20 are also disposed on the left side of the light guide plate 40 and the reflective sheet 30 so as to be symmetrical to FIG. 2. Reveal In FIG. 2, the substrate 10 may be a printed circuit board (PCB) and is a flat substrate, unlike the bar type substrate of the conventional edge type backlight unit (FIGS. 1B and 1C), and has a plurality of side view LEDs at edges thereof. The packages 20 may be mounted by surface mount (SMT).

In FIG. 2, the distance a between the side-view LED package 20 and the light guide plate 40 may be 0.5 mm or less in order to efficiently enter the light emitted from the side-view LED package 20 into the light guide plate. The light guide plate 40 and the side-view LED package 20 can be brought into close contact with each other by 0.2 mm or less.

Therefore, the edge type backlight unit 2 according to an embodiment of the present invention does not have a substrate at the edge portion, and the separation distance between the light guide plate and the LED package is also reduced, thereby significantly reducing the width of the portion corresponding to the bezel portion of the LED TV and the monitor. Decreases. In addition, since the edge type backlight unit (FIGS. 1B and 1C) is attached to the LED module sideways, the width of the bezel portion should be secured by the height of the top view LED package 2-2 included therein. The edge type backlight unit 2 according to the present invention reduces the width of the bezel in that the side length e of the side view LED package 20 corresponds to the bezel portion and the side length e can be designed to be very short. Can be.

In addition, in the case of the conventional edge type backlight unit (FIGS. 1B and 1C), various defect rates such as defects caused by adhesives during the process of attaching the bar-shaped LED module to the frame of the backlight unit are considerably high, but one embodiment of the present invention The edge type backlight unit 2 according to the present invention manufactures a backlight unit using the planar substrate 10 and the side view LED packages 20 mounted thereon, so the process of attaching the LED module to the frame of the backlight unit Not necessary, such a defect does not occur.

In Figure 2, the side length (e) and the separation distance (a) of the side view LED package 20

Figure pat00004
It can be designed to satisfy.

In FIG. 2, the sum (b + c) of the thickness c of the reflective sheet 30 and the thickness b of the light guide plate 40 may be 1.0 to 1.3 times the height d of the side view LED package 20. In this case, the light emitted from the light emitting device package 20 may be entirely absorbed by the light guide plate, thereby optimizing the light efficiency of the backlight unit 2.

In FIG. 2, the height d and side length e of the side view LED package 20 are also

Figure pat00005
It can be designed to satisfy. Conventional side view LED packages are designed to have a side length (e) longer than a package height (d), but the present invention requires mounting the side view LED package 20 at the edge of the flat substrate 10 but reducing the bezel thickness. The side length (e) must be shorter than the height (d). However, when the side length e is too short, it is difficult to be stably mounted on the flat substrate 10, and the above condition is a side light emitting device while reducing the bezel thickness of the LED TV and the monitor in which the backlight unit is used. It is an optimal condition for packages to be stably mounted on flat substrates. Preferably,
Figure pat00006
Can be.

2, the side view LED package 20 has a dotted line, which shows the centerline of the light emitting portion of the package 20, the height (d2) below the centerline is more than the height (d1) above the centerline. It can be seen from FIG. 2 that the design is long. The conventional side view LED package has been symmetrically designed with respect to the center line, but the center of the light guide plate 40 in the configuration of the present invention in which the reflective sheet 30 is disposed between the light guide plate 40 and the flat substrate 10. In order to accurately align (couple) the center of the light emitting part of the package 20 so that all the light emitted from the side view LED package 20 reaches the light guide plate 40, it must be asymmetrically designed based on the center line as shown in FIG. 2. Should understand.

In the edge type backlight unit 2 according to the exemplary embodiment of the present invention, the side view LED packages 20 are disposed only at the left and right edges corresponding to the short edges of the light guide plate 40, but the light guide plate 40 is described above. Note that it can be placed on all four edges of the However, when using the high brightness side view LED package 20, it is not necessary to arrange the packages 20 on all four edge portions, so as to the left and right edges of the light guide plate 40 as in the above embodiment, in more detail The LED package 20 may be disposed only at the short edge of the long axis edge and the short axis edge of the light guide plate, thereby reducing the number of LED packages 20 used in the edge type backlight unit 2, thereby greatly improving the commercialization of LED TVs and monitors. .

3 is a plan view of a part of the light guide plate 40 of the edge type backlight unit 2 according to an embodiment of the present invention. For convenience, four side view LED packages 20 are provided at the edges of the flat substrate 10. Although shown as being mounted, it should be understood that in practice a much larger number of packages may be implemented. As described above, the width of the bezel portion of the LED TV and the monitor is not required because the bar-shaped substrate is not required, which is the side length e of the side view LED package 20 and the package 20 and the light guide plate. (40) is the sum of the separation distances (a), which is much smaller than the p value of FIG.

In addition, as shown in FIG. 3, the side view LED packages 20 are mounted only at short edges of the long axis (horizontal direction) and the short axis (vertical direction) of the flat panel substrate 10 to reduce the total number of LEDs entering the backlight unit. The distance between the light guide plate 40 and the light guide plate 40 is reduced, and the sum of the thickness c of the reflective sheet 30 and the thickness b of the light guide plate 40 is b + c. (20) In the present invention, the light emitted from the LED package 20 is absorbed by the light guide plate 40 to be 1.0 to 1.3 times the height d, thereby optimizing the light efficiency of the edge type backlight unit 2 of the present invention. There is another significance.

Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto and is limited only by the claims, and the present invention is not limited to the technical spirit of the present invention described in the claims in various forms. It will be apparent to those skilled in the art that the present invention may be substituted, changed, and modified by.

Claims (13)

An edge type backlight unit including a plurality of light emitting device packages and a light guide plate,
A substrate disposed under the light guide plate;
It further comprises a reflective sheet attached between the substrate and the light guide plate,
And the plurality of light emitting device packages are side emitting light emitting device packages mounted on edge portions of the substrate not covered by the reflective sheet to emit light toward the side of the light guide plate. The method of claim 1,
The plurality of side light emitting device packages are edge-type backlight unit, characterized in that mounted only on the short edge of the long axis and short axis of the substrate. The method according to claim 1 or 2,
An edge type backlight unit, wherein the distance from the plurality of side light emitting device packages to the light guide plate is 0.5 mm or less. The method according to claim 1 or 2,
The sum of the thickness of the reflective sheet and the thickness of the light guide plate is an edge type backlight unit, characterized in that 1.0 to 1.3 times the height of the plurality of side light emitting device packages. The method according to claim 1 or 2,
Side lengths (e) of the plurality of side-emitting light emitting device packages and the separation distance (a)
Figure pat00007
Edge type backlight unit, characterized in that to satisfy. The method according to claim 1 or 2,
Height (d) and side length (e) of the plurality of side-emitting light emitting device packages
Figure pat00008
Edge type backlight unit, characterized in that to satisfy. The method according to claim 1 or 2,
The horizontal center axis of the light emitting part of the plurality of side light emitting device packages coincides with the horizontal center axis of the light guide plate, and a package height d2 below the horizontal center axis of the light emitting part is a package height above the horizontal center axis of the light emitting part ( edge type backlight unit, characterized in that it is longer than d1). Mounting a plurality of side-emitting light emitting device packages in a line only at an edge of the substrate;
Attaching a reflective sheet to the remaining area of the substrate except for the edge portion on which the plurality of side light emitting device packages are mounted; Disposing a light guide plate on the reflective sheet; And disposing a diffusion sheet on the light guide plate. The method of claim 8,
In the mounting step,
And mounting the plurality of side emitting light emitting device packages only at one of the long axis edges and the short axis edges of the substrate. The method according to claim 8 or 9,
And a separation distance from the plurality of side light emitting device packages to the light guide plate is 0.5 mm or less. The method according to claim 8 or 9,
And a sum of the thickness of the reflective sheet and the thickness of the light guide plate is 1.0 to 1.3 times the height of the plurality of side light emitting device packages. The method according to claim 8 or 9,
Side lengths (e) of the plurality of side-emitting light emitting device packages and the separation distance (a)
Figure pat00009
Edge type backlight unit manufacturing method characterized by satisfying the. The method according to claim 8 or 9,
Height (d) and side length (e) of the plurality of side-emitting light emitting device packages
Figure pat00010
Edge type backlight unit manufacturing method characterized by satisfying the.
KR1020100052266A 2010-06-03 2010-06-03 Backlight unit comprising sideview light emitting device package KR20110132754A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101413594B1 (en) * 2012-11-22 2014-07-02 주식회사 루멘스 Light emitting device package, backlight unit comprising the same, and method for manufacturing the light emitting device package
KR101415928B1 (en) * 2012-11-28 2014-07-04 주식회사 루멘스 Lighting device and backlight unit comprising the same
KR101415930B1 (en) * 2012-09-17 2014-07-04 주식회사 루멘스 light emitting device package and back light unit including the same
WO2016060472A1 (en) * 2014-10-17 2016-04-21 서울반도체 주식회사 Backlight unit and side view light-emitting diode package
US10553752B2 (en) 2015-12-02 2020-02-04 Samsung Electronics Co., Ltd. Light-emitting device and display device including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101415930B1 (en) * 2012-09-17 2014-07-04 주식회사 루멘스 light emitting device package and back light unit including the same
KR101413594B1 (en) * 2012-11-22 2014-07-02 주식회사 루멘스 Light emitting device package, backlight unit comprising the same, and method for manufacturing the light emitting device package
KR101415928B1 (en) * 2012-11-28 2014-07-04 주식회사 루멘스 Lighting device and backlight unit comprising the same
WO2016060472A1 (en) * 2014-10-17 2016-04-21 서울반도체 주식회사 Backlight unit and side view light-emitting diode package
US10553752B2 (en) 2015-12-02 2020-02-04 Samsung Electronics Co., Ltd. Light-emitting device and display device including the same

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