CN2682276Y - White light luminescent diode assembly - Google Patents
White light luminescent diode assembly Download PDFInfo
- Publication number
- CN2682276Y CN2682276Y CNU2004200012570U CN200420001257U CN2682276Y CN 2682276 Y CN2682276 Y CN 2682276Y CN U2004200012570 U CNU2004200012570 U CN U2004200012570U CN 200420001257 U CN200420001257 U CN 200420001257U CN 2682276 Y CN2682276 Y CN 2682276Y
- Authority
- CN
- China
- Prior art keywords
- light emitting
- white
- emitting diode
- light
- white light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Led Device Packages (AREA)
Abstract
The utility model relates to a white light emitting diode combined device which comprises at least two white light emitting units positioned at the edge of a backlight plate, wherein, the white light emitting units are selected from the group of a first white light emitting unit composed of red, blue and green light emitting diode diodes, a second white light emitting unit composed of blue light and yellow green light emitting diodes, a third white light emitting unit formed in the way that blue light emitting diodes are matched with yellow light fluorescent material powder, and a fourth white light emitting unit formed in the way that ultraviolet light emitting diodes are matched with red, blue and green light fluorescent powder. The white light emitting diode combined device of the utility model simultaneously has high emitting efficiency and color rendition, and flexibly uses the fluorescent powder.
Description
Technical field
The utility model relates to a kind of white light emitting diode composite set, but particularly a kind of white light emitting diode composite set that has luminous efficiency and colour rendering concurrently, reaches elasticity utilization fluorescent material.
Background technology
White light is the mixed light of many colors, can is the white light person by human eye perceives, and comprise the mixed light of wavelength more than two kinds at least.For example, when human eye is subjected to the stimulation of red, blue, green glow simultaneously or when being subjected to the irritating of blue light and gold-tinted simultaneously, all can be felt as white light.Therefore, can be according to this kind principle, make a semiconductor light-emitting apparatus that can send white light.The manufacture of known white semiconductor light-emitting device mainly contains four kinds, and division is as follows.
It is three light emitting diodes of material with gallium phosphide (Gap) that first kind of mode is to use with AlGaInP (AlInGaP), InGaN (InGaN), and the electric current of each light emitting diode is passed through in control, and makes it send red, green and blue light respectively.These three LED crystal particles are disposed in the same bulb (lamp), and utilize lens that the light of three kinds of colors is mixed and produce white light.
It is two light emitting diodes of material that the second way is to use InGaN and AlInGaP or Gap, and control makes it send indigo plant and green-yellow light respectively by the electric current of each light emitting diode, is mixed then to produce white light.
The third mode is the technology that chemical (Nichia Chemical) company in Asia of Japanese day in 1996 develops, and it cooperates the yttrium alumina carbuncle type fluorescent material that is stimulated and can sends gold-tinted with the InGaN blue light-emitting diode, makes a white light source.Because this kind mode only must be used one group of light-emitting diode chip for backlight unit, can reduce manufacturing cost significantly.Its fluorescent material modulation technique of arranging in pairs or groups has been attained maturation now, so existing commodity present.
The 4th kind of mode is to use ultraviolet light-emitting diodes (UV LED), excites red bluish-green three-color phosphor to send the fluorescence of different colours, produces white light after colour mixture.
The common drawback of aforementioned first and second kind mode is, when the photochromic light emitting diode of difference wherein one when breaking down, can't obtain normal white light, and in general, luminous efficiency is relatively poor.Second all utilizes the complementary colours principle to produce white light with the third mode, the continuity that its spectral wavelength distributes is not as real sunshine, therefore (400nm～700nm) the inhomogeneous of color occur caused the color degree of saturation lower in visible spectrum in meeting after coloured light mixed.Though human eyes can be ignored this phenomenon and only see white light, under the sensing of the higher fluorescence detector of some precision, for example video camera or camera etc., (color rendering property) is substantially still on the low side for its colour rendering.
As for the shortcoming of the 4th kind of mode,,, therefore must use the fluorescent material more than three kinds or three kinds to reach to improve its colour rendering so then taking the triband visible light to form white light source.Desire to utilize multiple fluorescent powder to make it send the fluorescence of different wave length simultaneously, one of prerequisite is that selected exciting light must just can be absorbed by these fluorescent material, and, each fluorescent powder can not differ too many to the absorption coefficient of the light of this wavelength, in addition, the quantum efficiency of transform light energy also need be close to good as far as possible.These factors significantly limit suitable fluorescent material kind, cause the difficulty of selecting fluorescent material for use.
Summary of the invention
But main purpose of the present utility model is to provide a kind of white light emitting diode composite set that has luminous efficiency and colour rendering concurrently, reaches elasticity utilization fluorescent material, to solve the shortcoming of above-mentioned known white light emitting diode.
For achieving the above object, the utility model provides a kind of white light emitting diode composite set, comprises at least two kinds of white-light emitting unit at the backlight edge that are selected from following cohort: (A) the white-light emitting unit of red bluish-green Tricolor LED composition; (B) the white-light emitting unit of blue light and green-yellow light light emitting diode composition; (C) blue light-emitting diode cooperates the white-light emitting unit of yellow fluorescent powder; (D) ultraviolet light-emitting diodes cooperates the white-light emitting unit of red blue-green fluorescent powder.
In other words, according to white light emitting diode composite set of the present utility model, following 11 kinds of matched combined: A+B (the white-light emitting unit B with white-light emitting unit A and blue light and green-yellow light light emitting diode composition of red bluish-green Tricolor LED composition) can be arranged, A+C, A+D, .., A+B+C ... .A+B+C+D.Therefore, according to white light emitting diode composite set of the present utility model, but can have luminous efficiency and colour rendering, and elasticity utilization fluorescent material concurrently.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet described accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Fig. 1 is the schematic diagram according to the white light emitting diode composite set of first preferred embodiments of the present utility model;
Fig. 2 A to Fig. 2 C is the spectral measurement figure for three kinds of Different Light;
Fig. 3 is the schematic diagram of explanation the utility model control module;
Fig. 4 A and Fig. 4 B are the schematic diagram that illustrates further the utility model control module;
Fig. 5 is the schematic diagram according to the white light emitting diode composite set of second preferred embodiments of the present utility model;
Fig. 6 is the schematic diagram according to the white light emitting diode composite set of the 3rd preferred embodiments of the present utility model;
Fig. 7 is the schematic diagram according to the white light emitting diode composite set of the 4th preferred embodiments of the present utility model; And
Fig. 8 is the schematic diagram according to the white light emitting diode composite set of the 5th preferred embodiments of the present utility model.
Wherein, description of reference numerals is as follows:
10,50,60,70,80-white light emitting diode composite set;
110,120,130,140-white-light emitting unit;
510,520,530,540-white-light emitting unit;
610,620,630,640-white-light emitting unit;
710,720,730,740-white-light emitting unit;
810,820,830,840-white-light emitting unit;
160-control module; 110A～110H-RGB light-emitting diode component;
160A-ruddiness control section;
160B-green glow control section;
160C-blue light control section.
The specific embodiment
Referring to Fig. 1, be schematic diagram according to the white light emitting diode composite set 10 of first preferred embodiments of the present utility model.This white light emitting diode composite set 10 is to be used on the LCD backlight, and comprises a plurality of first white-light emitting unit 110, and it is made up of red bluish-green Tricolor LED; A plurality of second white-light emitting unit 120, it is made up of blue light and green-yellow light light emitting diode; A plurality of the 3rd white-light emitting unit 130, it cooperates yellow fluorescent powder to form by blue light-emitting diode; And a plurality of Sibai light luminescence units 140, it cooperates red blue-green fluorescent powder to form by ultraviolet light-emitting diodes.
In above-mentioned instantiation, must know that this white light emitting diode composite set 10 might not have all white-light emitting unit 110-140, get final product and can have wherein at least two kinds.For example, white light emitting diode composite set 10 of the present utility model can also be made of one group of first white-light emitting unit 110 (it is to be made up of red bluish-green Tricolor LED) and one group of the 3rd white-light emitting unit 130 (it is to cooperate gold-tinted fluorescent material to form by blue light-emitting diode).Though the 3rd white-light emitting unit 130 has higher luminous efficiency, the absorption spike of gold-tinted fluorescent material not necessarily is consistent with blue light-emitting diode; And red bluish-green Tricolor LED can provide broader luminous frequency spectrum, therefore can make fluorescent material can do more effective utilization.
Referring to Fig. 2 A to Fig. 2 C, be respectively the 3rd white-light emitting unit (C) 130 independently, the independently first white-light emitting unit (A) 110, and according to the luminous frequency spectrum of white light emitting diode composite set 10 of the present utility model (it is made of one group of first white-light emitting unit 110 and one group of the 3rd white-light emitting unit 130, i.e. A+C).Fig. 2 A is the 3rd white-light emitting unit 130 luminous frequency spectrums independently, and it has not enough phenomenon in red light portion as can be seen, therefore can influence the colour rendering of light source.Fig. 2 B is the first white-light emitting unit, 110 luminous frequency spectrums independently, though it has preferable colour rendering, efficient is relatively poor, must power consumption more just can send illumination.Fig. 2 C is according to white light emitting diode composite set 10 luminous frequency spectrums of the present utility model, can find out that it has quite excellent colour rendering, and can send illumination in that power consumption is less.
In order further to control the colour rendering of white light emitting diode composite set 10, can in white light emitting diode composite set 10, provide a control module 160.As shown in Figure 3, the schematic diagram of controlling the first white-light emitting unit 110 of white light emitting diode composite set 10 with control module is described.This first white-light emitting unit 110 comprises a plurality of RGB light-emitting diode component 110A-110H, the light emitting diode of red bluish-green three looks is all arranged in each RGB light-emitting diode component, and be electrically connected to ruddiness control section 160A, green glow control section 160B and the blue light control section 160C of control module 160 respectively.Each control module 160 has an internal storage location, to store the drive current data for each light emitting diode.This control module can be a control IC.
Shown in Fig. 4 A and Fig. 4 B, the anode of each light emitting diode can be via wiring A among the RGB light-emitting diode component 110A-110H, B, C and be connected to the corresponding contact of ruddiness control section 160A, green glow control section 160B and blue light control section 160C; The negative electrode of each light emitting diode can be via wiring D among the RGB light-emitting diode component 110A-110H, E, F and be connected to the corresponding contact of ruddiness control section 160A, green glow control section 160B and blue light control section 160C.Therefore can control the drive current of each light emitting diode among each RGB light-emitting diode component 110A-110H by ruddiness control section 160A, the green glow control section 160B of control module 160 and blue light control section 160C respectively, and then control the colour temperature of each RGB light-emitting diode component 110A-110H.
Same, can also in the 3rd white-light emitting unit 130 of white light emitting diode composite set 10, set up a control module (not icon), to control the colour temperature of the 3rd white-light emitting unit 130.
Figure 5 shows that white light emitting diode composite set of the present utility model is applied in another schematic diagram of backlight, this white light emitting diode composite set 10 is sides that are placed in backlight (not label), and comprise a plurality of first white-light emitting unit 510, tool is made up of red bluish-green Tricolor LED; A plurality of second white-light emitting unit 520, it is made up of blue light and green-yellow light light emitting diode; A plurality of the 3rd white-light emitting unit 530, it cooperates gold-tinted fluorescent material to form by blue light-emitting diode; And a plurality of Sibai light luminescence units 540, it cooperates red blue-green fluorescent powder to form by ultraviolet light-emitting diodes.Same, this white light emitting diode composite set 50 might not have all white-light emitting unit 510-540, gets final product and can have wherein at least two kinds.
Figure 6 and Figure 7 is the schematic diagram that white light emitting diode composite set of the present utility model is applied in light fixture, this white light emitting diode composite set 60 comprises white-light emitting unit 610,620,630,640, this white light emitting diode composite set 70 comprises white-light emitting unit 710,720,730,740, this white-light emitting unit is to be wire or array-like arrangement on a plane, and this white light emitting diode composite set 60 and 70 can be presented by many rows or single mode.Figure 8 shows that white light emitting diode composite set of the present utility model is applied in the schematic diagram of flashlight, this white light emitting diode composite set 80 comprises white-light emitting unit 810,820,830,840, notice is in above-mentioned three instantiations, this white light emitting diode composite set might not have all white-light emitting unit, gets final product and can have wherein at least two kinds.
In sum, white light emitting diode composite set of the present utility model, but can have luminous efficiency and colour rendering, and elasticity utilization fluorescent material concurrently, can be applicable to lighting and LCD backlight.The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claims are modified and changed, and all should belong to the covering scope of the utility model patent.
Claims (6)
1, a kind of white light emitting diode composite set is characterized in that comprising at least two kinds of white-light emitting unit at the backlight edge that are selected from following cohort: (A) the first white-light emitting unit of redgreenblue light emitting diode composition; (B) the second white-light emitting unit of prison light and green-yellow light light emitting diode composition; (C) blue light-emitting diode cooperates the 3rd white-light emitting unit of yellow fluorescent powder; (D) ultraviolet light-emitting diodes cooperates the Sibai light luminescence unit of red blue-green fluorescent powder.
2. white light emitting diode composite set as claimed in claim 1 is characterized in that also comprising a control module, to control the brightness of each light emitting diode in this white light emitting diode composite set.
3. white light emitting diode composite set as claimed in claim 1 is characterized in that this white-light emitting unit is to be wire or array-like arrangement on a plane.
4. white light emitting diode composite set as claimed in claim 1 is characterized in that this white light emitting diode composite set comprises the white-light emitting unit that a white-light emitting unit of being made up of red bluish-green Tricolor LED and cooperates yellow fluorescent powder to form by blue light-emitting diode.
5. white light emitting diode composite set as claimed in claim 2 is characterized in that each control module has an internal storage location, stores the drive current data for each light emitting diode.
6. white light emitting diode composite set as claimed in claim 2 is characterized in that this control module is a control IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200012570U CN2682276Y (en) | 2004-02-04 | 2004-02-04 | White light luminescent diode assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200012570U CN2682276Y (en) | 2004-02-04 | 2004-02-04 | White light luminescent diode assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682276Y true CN2682276Y (en) | 2005-03-02 |
Family
ID=34605328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200012570U Expired - Fee Related CN2682276Y (en) | 2004-02-04 | 2004-02-04 | White light luminescent diode assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682276Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468709C (en) * | 2005-03-18 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | Luminous modular and its light source device |
| CN102374437A (en) * | 2011-08-26 | 2012-03-14 | 友达光电股份有限公司 | Light source module with multiple light sources |
| CN102853283A (en) * | 2011-06-30 | 2013-01-02 | 展晶科技(深圳)有限公司 | Light emitting diode lighting device |
| CN102980062A (en) * | 2012-11-12 | 2013-03-20 | 广东威创视讯科技股份有限公司 | Light emitting diode (LED) light source |
| CN103090204A (en) * | 2011-10-31 | 2013-05-08 | 展晶科技(深圳)有限公司 | Light emitting diode lighting device |
| CN102036435B (en) * | 2009-09-28 | 2014-04-30 | 财团法人工业技术研究院 | Light color toning method and light color variable light-emitting diode light source module |
-
2004
- 2004-02-04 CN CNU2004200012570U patent/CN2682276Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468709C (en) * | 2005-03-18 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | Luminous modular and its light source device |
| CN102036435B (en) * | 2009-09-28 | 2014-04-30 | 财团法人工业技术研究院 | Light color toning method and light color variable light-emitting diode light source module |
| CN102853283A (en) * | 2011-06-30 | 2013-01-02 | 展晶科技(深圳)有限公司 | Light emitting diode lighting device |
| CN102374437A (en) * | 2011-08-26 | 2012-03-14 | 友达光电股份有限公司 | Light source module with multiple light sources |
| CN103090204A (en) * | 2011-10-31 | 2013-05-08 | 展晶科技(深圳)有限公司 | Light emitting diode lighting device |
| CN102980062A (en) * | 2012-11-12 | 2013-03-20 | 广东威创视讯科技股份有限公司 | Light emitting diode (LED) light source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7279716B2 (en) | Single-chip LED with three luminescent spectrums of red, blue and green wavelengths | |
| CN1610137A (en) | White light emitting diode | |
| JP2002057376A (en) | Led lamp | |
| KR20120022649A (en) | White led device using multi-chip | |
| TW201010125A (en) | White light light-emitting diodes | |
| US20090050912A1 (en) | Light emitting diode and outdoor illumination device having the same | |
| CN1866532A (en) | AC light emitting apparatus and manufacturing method thereof | |
| CN1866550A (en) | Multi-wavelength white light LED | |
| CN1949507A (en) | LED device capable of regulating colour temp | |
| CN1208847C (en) | Process for making three wavelengh white light light-emitting diode | |
| CN2682276Y (en) | White light luminescent diode assembly | |
| CN100341163C (en) | Weight-light ligh-emitting diode unit | |
| CN219606888U (en) | Fluorescent powder-free multi-primary-color LED low-color-temperature street lamp | |
| US20040089864A1 (en) | Light emitting diode and method of making the same | |
| CN1719630A (en) | White light illuminating method and apparatus capable of regulating colour temp. | |
| TW201301570A (en) | Multi-color light emitting diode and manufacturing method thereof | |
| CN1707817A (en) | White bias to blue paster type light-emitting diode and producing method thereof | |
| CN1464568A (en) | A making process for white light light-emitting diode | |
| CN1610134A (en) | Illuminating device | |
| CN101364549B (en) | Making method for white light LED | |
| CN100433380C (en) | White light emitting device with light-emitting diode and application thereof | |
| CN1220279C (en) | Purple red light-emitting diode | |
| CN1169909C (en) | Method for obtaining lilght source of white light | |
| CN221613476U (en) | Display luminous device | |
| CN1527410A (en) | Mixed-color LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YULIN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHENGQI TECHNOLOGY CO., LTD. Effective date: 20090612 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090612 Address after: Postcode of Taiwan, Taipei: Patentee after: Institute for Information Industry Address before: Postcode of Taiwan, Hsinchu: Patentee before: Zhengqi Science & Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050302 Termination date: 20120204 |