CN104181760A - Projection display system based on full-color light-emitting diode matrixes - Google Patents
Projection display system based on full-color light-emitting diode matrixes Download PDFInfo
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- CN104181760A CN104181760A CN201410446088.XA CN201410446088A CN104181760A CN 104181760 A CN104181760 A CN 104181760A CN 201410446088 A CN201410446088 A CN 201410446088A CN 104181760 A CN104181760 A CN 104181760A
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Abstract
The invention discloses a projection display system based on full-color light-emitting diode matrixes. The projection display system comprises three light-emitting diode matrix modules, heat dissipation elements, light collection elements, a light mixing element and a projection element. The light-emitting diode matrix modules comprise the three light-emitting diode display matrixes with different wave lengths. The heat dissipation elements serve as accessories of the three light-emitting diode matrixes and are used for dissipating heat. The light collection elements are placed in front of optical paths of the light-emitting diode matrixes and used for collecting light and guiding the light into the light mixing element. The light mixing element is used for mixing the three types of light emitted by the three light-emitting diode matrixes to form a full-color image. The projection element is placed in front of the light mixing element and used for adjusting the image quality and the image size. The active light-emitting display system is realized, passive control elements in the traditional display technology are eliminated, and therefore the optical utilization rate is increased, and the power consumption of the display system is lowered.
Description
Technical field
The invention belongs to semiconductor light-emitting-diode display application field, relate in particular to a kind of projection display system based on full-color light-emitting diode array.
Background technology
Existing projection display technique mainly comprises DLP, LCD, LCOS etc.These technology all need laser or LED as light source, then by micro mirror array or liquid crystal, as light valve, show control, form picture.The shortcoming of this passive type display technique is that it controls light valve can cause optical loss.In order to present the picture that meets brightness requirement, conventionally need to increase the power of light source, increased the power consumption of system.
Existing LED light source can form projection illuminator in conjunction with optical projection system, and related application number is CN201310447405.5 and CN201310449655.2.But this system is only applicable to illumination or decorative environment.
Summary of the invention
The invention provides the projection display system based on full-color light-emitting diode array.Use the diode displaying array of three groups of different wave lengths, by light collecting element, mixed light element and projection element, realize active dispalying systems.This system has been omitted the Passive Control element in traditional display technique and has been improved optics utilization factor, and then has reduced power consumption.
For achieving the above object, the invention provides a kind of projection display system based on full-color light-emitting diode array, comprising:
Three groups of light emitting diode matrix modules, comprise the diode displaying array of three different wave lengths;
Heat dissipation element, it is placed in the annex of described three light emitting diode matrixs, in order to heat radiation;
Light collecting element, it is placed on light path the place ahead of described light emitting diode matrix, in order to by ray-collecting and introduce in mixed light element;
Mixed light element, it forms full-color image for three kinds of light that mix described three light emitting diode matrixs and send;
Projection element, it is placed on mixed light element the place ahead and for regulating image quality and size.
The present invention improves display element and optical element on the basis of traditional display technique and projection illuminator.Use the diode displaying array of three groups of different wave lengths, by mixed light element and projection element, realize active dispalying systems.This system has been omitted the Passive Control element in traditional display technique and has been improved optics utilization factor, and then has reduced the power consumption of display system.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the projection display system based on full-color light-emitting diode array in the embodiment of the present invention.
[main element]
Projection display system 100
The first wavelength full-color light-emitting diode array 111
Second wave length full-color light-emitting diode array 112
Three-wavelength full-color light-emitting diode array 113
Heat dissipation element 120
Light collecting element 130
Mixed light element 140
Projection element 150
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Refer to example structure schematic diagram in Fig. 1, the projection display system 100 based on full-color light-emitting diode array provided by the invention, comprising:
Three groups of light emitting diode matrix modules:
Diode displaying array 111,112,113 by three different wave lengths forms.Its method for making is by being fixed on the substrate that is furnished with circuit of a plurality of LED luminescence chip arrays, then with encapsulating material by luminescence chip array package on substrate.The step of selectable increase coating fluorescent powder in encapsulation process; Wherein, described in each, light emitting diode matrix is comprised of many identical LED chips;
Heat dissipation element 120:
By heat-pipe radiator, air-cooled radiator, hot condensation heating radiator, or the hybrid heat sink of above several radiating modes forms.This element be placed on diode displaying array 111,112 and 113 belows or near, in order to distribute light emitting array and system heat energy;
Light collecting element 130:
This element is placed on diode displaying array 111,112 and 113 light path the place aheads, in order to by ray-collecting and introduce in mixed light element 140.The structure of light collecting element 130 is not limited only to shown in figure herein; Described light collecting element 130 can adopt lens combination a kind of or that more than employing a plurality of lens combinations form in plano-convex lens, concave-convex lens, Fresnel Lenses etc.
Mixed light element 140:
This element is placed on three groups of diode displaying arrays 111,112,113 center, make described three groups of diode displaying arrays 111,112,113 lay respectively at three sides of mixed light element 140, for the light of mixed luminescence array and form full-color image; Described mixed light element 140 adopts combined prism structure, after the light from three different directions is mixed, from other direction, exports.
Projection element 150:
Single group or multiple lens, consist of, this element 150 is placed on mixed light element 140 the place aheads and regulates image quality and size according to real needs.
The present invention improves display element and optical element on the basis of traditional display technique and projection illuminator.Use the diode displaying array of three groups of different wave lengths, by mixed light element and projection element, realize active dispalying systems.This system has been omitted the Passive Control element in traditional display technique and has been improved optics utilization factor, and then has reduced the power consumption of display system.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the projection display system based on full-color light-emitting diode array, comprising:
Three groups of light emitting diode matrix modules, comprise the diode displaying array of three different wave lengths;
Heat dissipation element, it is placed in the annex of described three light emitting diode matrixs, in order to heat radiation;
Light collecting element, it is placed on light path the place ahead of described light emitting diode matrix, in order to by ray-collecting and introduce in mixed light element;
Mixed light element, it forms full-color image for three kinds of light that mix described three light emitting diode matrixs and send;
Projection element, it is placed on mixed light element the place ahead and for regulating image quality and size.
2. the projection display system based on full-color light-emitting diode array according to claim 1, is characterized in that, described in each, light emitting diode matrix is comprised of many identical LED luminescence chips, being produced on circuit base plate of chip array formula.
3. the projection display system based on full-color light-emitting diode array according to claim 2, is characterized in that, described many identical chips adopt encapsulating material to be encapsulated on described circuit base plate.
4. the projection display system based on full-color light-emitting diode array according to claim 1, is characterized in that, described heat dissipation element comprises one or more several combinations in heat-pipe radiator, air-cooled radiator, hot condensation heating radiator.
5. the projection display system based on full-color light-emitting diode array according to claim 1, is characterized in that, described mixed light element is placed in the center of described three light emitting diode matrixs.
6. the projection display system based on full-color light-emitting diode array according to claim 1, is characterized in that, described projection element comprises single group or multiple lens.
7. the projection display system based on full-color light-emitting diode array according to claim 2, is characterized in that, is also coated with fluorescent powder on described chip.
8. the projection display system based on full-color light-emitting diode array according to claim 1, it is characterized in that, described light collecting element adopts a kind of in plano-convex lens, concave-convex lens, Fresnel Lenses or above-mentioned any or several lens combination that combine.
9. the projection display system based on full-color light-emitting diode array according to claim 1, is characterized in that, described mixed light element adopts combined prism structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446088.XA CN104181760A (en) | 2014-09-03 | 2014-09-03 | Projection display system based on full-color light-emitting diode matrixes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446088.XA CN104181760A (en) | 2014-09-03 | 2014-09-03 | Projection display system based on full-color light-emitting diode matrixes |
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| CN104181760A true CN104181760A (en) | 2014-12-03 |
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| CN201410446088.XA Pending CN104181760A (en) | 2014-09-03 | 2014-09-03 | Projection display system based on full-color light-emitting diode matrixes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106604007A (en) * | 2017-01-24 | 2017-04-26 | 深圳晗竣雅科技有限公司 | Diode array monochromatic projection imaging device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609703A (en) * | 2003-10-22 | 2005-04-27 | 联华电子股份有限公司 | Light-emitting diode llluminating apparatus |
| CN1773368A (en) * | 2004-11-12 | 2006-05-17 | 南京Lg同创彩色显示系统有限责任公司 | Projector display system utilizing LED/LD |
| CN101093066A (en) * | 2003-10-22 | 2007-12-26 | 联华电子股份有限公司 | Illuminating apparatus of light emitting diode |
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2014
- 2014-09-03 CN CN201410446088.XA patent/CN104181760A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609703A (en) * | 2003-10-22 | 2005-04-27 | 联华电子股份有限公司 | Light-emitting diode llluminating apparatus |
| CN101093066A (en) * | 2003-10-22 | 2007-12-26 | 联华电子股份有限公司 | Illuminating apparatus of light emitting diode |
| CN1773368A (en) * | 2004-11-12 | 2006-05-17 | 南京Lg同创彩色显示系统有限责任公司 | Projector display system utilizing LED/LD |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106604007A (en) * | 2017-01-24 | 2017-04-26 | 深圳晗竣雅科技有限公司 | Diode array monochromatic projection imaging device |
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Application publication date: 20141203 |