KR20110030967A - Light emitting apparatus - Google Patents

Light emitting apparatus Download PDF

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Publication number
KR20110030967A
KR20110030967A KR1020090088654A KR20090088654A KR20110030967A KR 20110030967 A KR20110030967 A KR 20110030967A KR 1020090088654 A KR1020090088654 A KR 1020090088654A KR 20090088654 A KR20090088654 A KR 20090088654A KR 20110030967 A KR20110030967 A KR 20110030967A
Authority
KR
South Korea
Prior art keywords
light source
source led
light emitting
white
light
Prior art date
Application number
KR1020090088654A
Other languages
Korean (ko)
Inventor
노시청
Original Assignee
주식회사 필룩스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 필룩스 filed Critical 주식회사 필룩스
Priority to KR1020090088654A priority Critical patent/KR20110030967A/en
Publication of KR20110030967A publication Critical patent/KR20110030967A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Led Device Packages (AREA)

Abstract

PURPOSE: A light emitting apparatus is provided to combine a warm or cool white light source LED with one colored light source LED, thereby emitting light of pastel tone series. CONSTITUTION: A light emitting device(100) comprises at least one white light source LED(120) and a colored light source LED(130). The colored light source LED is arranged on one side of the white light source LED. The colored light source LED emits at least one light of red, green, and blue light. The white light source LED and the colored light source LED are arranged on a substrate(110) with first and second substrates. Light colors of the white light source LED and the colored light source LED are mixed by a diffusion combination method. The white light source LED is formed of a cool white or warm white LED.

Description

Light Emitting Device {Light Emitting Apparatus}

The present invention relates to a light emitting device, and more particularly, to a light emitting device capable of realizing pastel tone colors.

In general, a light emitting diode refers to a device that generates a small number of carriers (electrons or holes) injected using a P-N junction structure of a compound semiconductor, and emits predetermined light by recombination thereof. It is applied to various product fields because of low power consumption, long life and excellent durability, and can emit light of desired color using a single chip or multiple chips.

For example, in the case of a single chip, red light is emitted using a light emitting diode chip using GaAsP or the like, green light is emitted using a light emitting diode chip using GaP or the like, and an InGaN / AlGaN double hetero structure is used. The light emitting diode chip can emit blue light.

In the multi-chip, for example, white light emission may be realized by simultaneously using red, green, and blue light emitting diode chips.

Meanwhile, in the case of a single chip, light emission of a desired color may be realized by using a light emitting diode chip of a compound semiconductor and a fluorescent material for wavelength converting primary light emitted from the light emitting diode chip.

White light emitting diodes are widely used for signaling and lighting purposes, and their demand is increasing as they are applied to automotive and lighting products.

As described above, in the case of a multi-chip using a plurality of light emitting diode chips, when each light emitting diode chip is composed of a red, green, and blue light emitting diode chip, seven colors can be realized by applying a current. The light emitting diode is called a seven-color light emitting diode. Red, green, and blue light emitting diode chips are mounted on a substrate, and electrodes are formed corresponding to the respective light emitting diode chips, and are configured to apply current to each light emitting diode chip independently.

The 7-color LED is used for indicators and mobile phones in general electronic products as well as indicators and mobile phones used in keyboards and keypads. Light emitting diodes with excellent color, long life and high consumption efficiency have been attracting attention as a light source to replace general lighting, and consumers' desire for various colors is increasing.

Accordingly, an object of the present invention is to provide a light emitting device capable of realizing soft pastel pastel-based light.

In order to achieve the above object, a light emitting device according to an embodiment of the present invention comprises at least one white light source LED; And a colored light source LED disposed on one side of the white light source LED to emit at least one of red, green, and blue light.

In this case, the white light source LED may be a COOL WHITE LED having a color temperature in the range of 6000K to 8000K, or a WARM WHITE LED having a color temperature in the range of 2300K to 4000K.

In addition, at least one colored light source LED may be disposed on one side of the white light source LED, and the white light source LED and the colored light source LED may be disposed to correspond to each other.

According to the present invention, a light emitting device that emits a pastel tone color may be implemented by combining a warm or cool white light source LED with at least one colored light source LED among one of red, green, and blue colors.

In addition, the light emitting device according to the present invention can improve the productivity of the light emitting device by implementing the pastel-tone light without a new material or additional process.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention; The following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms.

1 is a cross-sectional view of a light emitting device according to the present invention. 2 is a cross-sectional view of the light emitting device of FIG. 1.

1 and 2, the light emitting device 100 is disposed on one side of the at least one white light source LED 120 and the white light source LED 120 to emit light of at least one of red, green, and blue colors. A light source LED 130 is included.

The plurality of white light source LEDs 120 and the colored light source LEDs 130 are disposed on the substrate 110 on which the first electrode 111 and the second electrode 112 are disposed. The white light source LEDs 120 and the colored light source LEDs 130 are mixed by a dispersion combination to adjust color temperature of a wide area.

The white light source LED 120 may be formed of a COOL WHITE or WARM WHITE LED.

Cool white LEDs have a correlated color temperature of 6,000 K to 8,000 K, and the X and Y values are each about 0.31 in the chromaticity coordinate system. Indicates.

Warm white LEDs have a correlated color temperature of 2,300K to 4,000K, and the X and Y values are each about 0.31 in the chromaticity coordinate system, and their emission peak wavelength is approximately 580 nm according to the spectral energy distribution. Indicates.

The colored light source LED 130 emits light of at least one of red, green, and blue, and selectively emits light of various colors according to supply of power. For example, when the colored light source LED 130 emits red light, the light emitting device 100 emits a pastel tone-based red light. In addition, when the colored light source LED 130 emits green light, the light emitting device 100 emits green light of pastel tones. In addition, when the colored light source LED 130 emits blue light, the light emitting device 100 emits blue light of pastel tones.

As described above, in the present embodiment, the warm white light and the light of red, green, and blue may be selectively mixed to realize soft pastel warm light. In addition, in the present embodiment, the cool white light and the at least one light among red, green, and blue may be selectively mixed to implement cool pastel tone light.

In addition, the light emitting device according to the present embodiment may improve the productivity of the light emitting device by implementing pastel tone-based light without a new material or additional process.

3 is a second embodiment of a light emitting device according to the present invention.

The light emitting device of FIG. 3 is the same as the light emitting device of FIG. 1, but the white light source LED 220 and the colored light source LED 230 are disposed to correspond to each other. That is, the present embodiment provides a light emitting device that includes a white light source LED 220 in a line shape and a colored light source LED 230 in a region corresponding to the white light source LED 220 to realize a line light. do.

4 is a third embodiment of a light emitting device according to the present invention.

The light emitting device of FIG. 4 is the same as the light emitting device of FIG. 3, but the colored light source LEDs 330 are disposed between the white light source LEDs 320 disposed in parallel. Accordingly, the pastel tone light implemented by the present embodiment is implemented to be lower than the illuminance of FIG. 3.

As described above, the preferred embodiment of the present invention has been disclosed through the detailed description and the drawings. The terms are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a cross-sectional view of a light emitting device according to the present invention.

2 is a cross-sectional view of the light emitting device according to FIG. 1.

3 is a second embodiment of a light emitting device according to the present invention;

4 is a third embodiment of a light emitting device according to the present invention;

[Description of Reference Numerals]

100: light emitting device 110: substrate

120: white light source LED 130: colored light source LED

Claims (5)

At least one white light source LED; And A colored light source LED disposed on one side of the white light source LED to emit at least one of red, green, and blue light; Light emitting device comprising a. According to claim 1, Wherein the white light source LED is a COOL WHITE LED having a color temperature in the range of 6000K to 8000K. According to claim 1, The white light source LED is a warm white (WARM WHITE) LED having a color temperature in the range of 2300K to 4000K. According to claim 1, The colored light source LED is at least one light emitting device disposed on one side of the white light source LED. According to claim 1, The white light source LED and the colored light source LED are disposed to correspond to each other.
KR1020090088654A 2009-09-18 2009-09-18 Light emitting apparatus KR20110030967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090088654A KR20110030967A (en) 2009-09-18 2009-09-18 Light emitting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090088654A KR20110030967A (en) 2009-09-18 2009-09-18 Light emitting apparatus

Publications (1)

Publication Number Publication Date
KR20110030967A true KR20110030967A (en) 2011-03-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101584936B1 (en) * 2015-04-03 2016-01-21 주식회사 린노 LED illumination device
US9807843B2 (en) 2015-10-02 2017-10-31 Samsung Electronics Co., Ltd. White light emitting module and LED lighting apparatus
IT201900005222A1 (en) * 2019-04-05 2020-10-05 Artemide Spa LED BOARD ON PRINTED CIRCUIT FOR LIGHTING APPLIANCES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101584936B1 (en) * 2015-04-03 2016-01-21 주식회사 린노 LED illumination device
US9807843B2 (en) 2015-10-02 2017-10-31 Samsung Electronics Co., Ltd. White light emitting module and LED lighting apparatus
IT201900005222A1 (en) * 2019-04-05 2020-10-05 Artemide Spa LED BOARD ON PRINTED CIRCUIT FOR LIGHTING APPLIANCES

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