CN101086608A - Projection display device - Google Patents
Projection display device Download PDFInfo
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- CN101086608A CN101086608A CNA2006100831265A CN200610083126A CN101086608A CN 101086608 A CN101086608 A CN 101086608A CN A2006100831265 A CNA2006100831265 A CN A2006100831265A CN 200610083126 A CN200610083126 A CN 200610083126A CN 101086608 A CN101086608 A CN 101086608A
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Abstract
The LED or LD projection display comprises LED or LD light, projection lens system, signal modulator, with the light being at least one of them formed matrix light, or coupling them optically into the optical fiber matrix, with the signal modulator used for loading signal, light output path installed with projected lens system. It can realize large screen display with high electric optical efficiency, long in durability, simple in system and bright in color.
Description
Technical field
The present invention relates to a kind of display device, particularly relate to the projection display equipment that a kind of LED of employing or LD are light source.
Background technology
At present, the Projection Display light source mainly is continuously luminous thermoluminescence lamp, as based on halogen bulb etc.But the based on halogen bulb life-span is short, and about general thousand hours, the energy conversion of having only 2-3% is a luminous energy, other all become heat, and based on halogen bulb relatively is afraid of vibrations.
In addition, the Projection Display light source also comprises some Projection Display light sources of new generation, as lasing light emitter, and semiconductor light-emitting-diode light source (Light Emitting Diodes is hereinafter to be referred as LED).In the display system that adopts lasing light emitter, it is advantageous that: because laser is line spectrum, have the color saturation higher, and can make that the color that shows is more bright-coloured by selecting three primary colours wavelength near the chromatic triangle drift angle than fluorescent powder; Also can make the chromatic triangle area of formation bigger simultaneously, demonstrate truer, the abundant colors more of nature.Therefore laser display is subjected to showing great attention to of technician, becomes one of significant development direction of high-end display technique.Application number is 200410069055.4, name is called: the patent of invention of " a kind of have red, green, blue tricolor laser colour display device " discloses a kind of red, green, blue tricolor laser colour display device that has, comprise red laser, green (light) laser, blue laser, 3 eliminating coherence devices of corresponding respectively placement on the light path of its output light path, order is settled first catoptron, liquid crystal light valve, beam cementing prism on the ruddiness output light path behind the eliminating coherence; The light beam of green (light) laser output order on the output light path behind the eliminating coherence is settled second liquid crystal light valve, beam cementing prism; Settle a catoptron on the blue laser output light path, settle the 3rd liquid crystal light valve in the middle of catoptron and the beam cementing prism on the light path; On the light path of output light behind the beam cementing prism, settle projection lens system.These lasing light emitters comprise gas laser source, the Solid State Laser source, semiconductor laser light source (Laser Diodes is hereinafter to be referred as LD), perhaps its combination etc.But adopt the deficiency of gas and solid state laser to be: cost an arm and a leg, volume is big; And adopt the deficiency of LD to be: though its volume is little, the life-span can be greater than ten thousand hours, and the power of single tube is not high, therefore are difficult to realize large screen display.
In fact, known LED can be used as the light source of demonstration.The obstacle of manufacturing the high brightness three-primary color LED has been cleared away in the success of brightness blue light LED suitability for industrialized production at present, and making three-primary color LED enter the true color field of video displaying becomes possibility.At present the luminescence efficiency of high brightness three-primary color LED has surpassed 60 lumens/watt, LED be used for display system have cheap, life-span long (tens thousand of hours), efficient height, and close advantages such as simple and efficient.But the peak power of single tube LED industrialization product is also only paced up and down in several watts at present, so single tube is difficult to realize large screen display.
At the above-mentioned deficiency of prior art, people just wish to have a kind of improved projection display equipment.
Summary of the invention
The objective of the invention is to overcome the too low deficiency of single tube power in the prior art, thereby a kind of LED or LD area array light source that is made of LED or LD array is provided, realize great power LED or LD projection display equipment that high brightness, high-level efficiency and life-span are long.
The object of the present invention is achieved like this:
A kind of projection display equipment as shown in Figure 1, comprises light source 1, projection lens system 2 and at least one signal modulator (not shown), it is characterized in that, described light source 1 is at least one LED or LD area array light source that is made of LED or LD array; The light beam that described light source 1 sends enters described projection lens system 2; Described signal modulator and described light source 1 are electrically connected or are arranged on the light path between described light source 1 and the described projection lens system 2, are used for load signal.
Further, described LED or LD are red-light LED or LD, green light LED or LD or blue-ray LED or LD; Described red-light LED or LD output wavelength scope are 610～700nm; Described green light LED or LD output wavelength scope are 510～545nm; Described blue-ray LED or LD output wavelength are 400～490nm.
Further, the power bracket of the single tube LED of described LED or LD or LD is 1 microwatt～100 watt.
Further, also comprise the fiber array corresponding with described light source 1, described light source 1 emission be optically coupled into corresponding fiber array, enter described projection lens system 2 from the light of described fiber array outgoing.
Further, described optical fiber comprises single cladded-fiber, doubly clad optical fiber, conical fiber, microstructured optical fibers, multi-core fiber; Described fiber optic materials is quartz, glass or polymkeric substance.
Further, each pixel of described LED or LD area array light source comprises the LED or the LD of different wave length; Described signal modulator is electrically connected with described light source 1, is used to control LED or LD, and the signal loading that will show is to described area array light source 1.
Further, described LED or LD area array light source are made up of three LED or LD area array light source, are respectively ruddiness face battle array 4, green glow face battle array 5 and blue light face battle array 6; Described green glow face battle array 5 output wavelength scopes are 510～545nm; Described blue light face battle array 6 output wavelengths are 400～490nm; Described ruddiness face battle array 4 output wavelength scopes are 610～700nm; This display device also comprises a beam cementing prism 12 and three signal modulators, three described signal modulators are corresponding one by one with described ruddiness face battle array 4, described green glow face battle array 5 and described blue light face battle array 6 respectively, are separately positioned on the area array light source and the light path in the middle of the described beam cementing prism 12 of correspondence; After the signal modulator load signal, described beam cementing prism 12 synthesizes a branch of described projection lens system 2 that enters with three light beams.
Described signal modulator comprises a light valve; Described light valve is projection-type liquid crystal light valve, reflective liquid crystal light valve or digital micro-mirror light valve.
Described ruddiness face battle array 4, green glow face battle array 5 and blue light face battle array 6 all are made up of the LD array; The eliminating coherence device of one respective wavelength is set respectively on the light path between ruddiness face battle array 4, green glow face battle array 5, blue light face battle array 6 and the described beam cementing prism 12.
Described eliminating coherence device comprises transition catoptron, multimode optical fiber or the phase modulation (PM) plate that shake.
Described projection lens system comprises pre-projecting type projection lens system, back projection type projection lens system, enlarging projection lens combination or reduced projection lens combination.
Described LED or LD are the laser instrument of output continuous wave, quasi c. w. or pulsating wave.
Described LED or LD face battle array or fiber facet battle array are N * M face battle array, and N and M are the positive integer more than or equal to 1.
Described beam cementing prism is the X prism.
Superiority of the present invention:
1. the present invention utilizes LED or LD face battle array as the light source of Projection Display, with respect to adopting non-matrix LED or LD as the light source of Projection Display, can realize more large screen display;
2. adopt LED or LD face battle array display image directly to project to giant-screen, have the compacter advantage of system;
3. the three primary colours optical wavelength of Xuan Zeing can demonstrate abundanter, the more bright-coloured image of color more near the leg-of-mutton drift angle of colourity;
4. the present invention utilizes LED or LD itself to have high electrical efficiency, the life-span is long, volume is little advantage, adopts LED or LD face battle array as light source, is widely used in fields such as laser home theater and laser large screen demonstration.
Description of drawings:
Fig. 1 is the LED or the LD face battle array colour projection display synoptic diagram of the embodiment of the invention 1;
Fig. 2 is the colour projection display synoptic diagram that a LD of the embodiment of the invention 2 is coupled into optical fiber;
Fig. 3 is the projection display equipment synoptic diagram of a three-primary color LED face battle array of the embodiment of the invention 3;
Fig. 4 is a three-primary color LED optical coupling face array projection display device synoptic diagram of the embodiment of the invention 4;
Fig. 5 is a three primary colours LD face battle array colour projection display synoptic diagram of the embodiment of the invention 5;
The drawing explanation:
1-LED or LD face battle array; The 2-projection lens system;
The 3-screen; 4-red-light LED face battle array;
5-green light LED face battle array; 6-blue-ray LED face battle array;
The 7-red mirror; 8-blu-ray reflection mirror;
9-ruddiness light valve; 10-green glow light valve;
11-blue light light valve; The 12-beam cementing prism;
13-ruddiness eliminating coherence device; 14-green glow eliminating coherence device;
15-blue light eliminating coherence device; The little array of 17-LD;
The 18-single-mode fiber; 22 '-the single-mode fiber bundle;
Embodiment
The present invention is described further below in conjunction with drawings and Examples.
Make a LED face battle array colour projection display according to Fig. 1, comprise light source 1, projection lens system 2 and a signal modulator (not shown), described light source 1 is a LED area array light source that is made of led array; The light beam that described LED area array light source sends enters described projection lens system 2; Described signal modulator links to each other with described LED area array light source, is used for the loaded and displayed signal.Wherein:
LED of the present invention or LD face battle array are directly to constitute a sub-picture by projection, and the area of face battle array generally is not more than 0.5 square metre.LED area array light source employing resolution is 1024 * 768 face battle array in the present embodiment, and each pixel is made up of three LED of red, green, blue, and its wavelength is respectively 670nm, 515nm, 440nm; Signal modulator is input to digital modulation signals on the LED face battle array, directly demonstrates image by LED face battle array, directly projects on the screen 3 by projection lens system 2 then to show.LED area array light source, signal modulator are device that sell in market.
Make the colour projection display that a LD is coupled into optical fiber according to Fig. 2, comprise light source 1, projection lens system 2 and a signal modulator (not shown), described light source 1 is made up of a LD face battle array and fiber array, the optically-coupled that the paroxysm of described LD face goes out enters optical fiber, and the output terminal of optical fiber forms described fiber array.Fiber array sends light beam and enters described projection lens system 2; Described signal modulator is electrically connected with described LD area array light source, is used for the loaded and displayed signal.
LD face battle array is made up of 480,000 little arrays 17 of LD.The little array 17 of each LD is by red, green, blue three LD form, its wavelength is respectively 670nm, 515nm, 440nm, red, green, a single-mode fiber 18 is advanced in the optically-coupled that blue three LD send, be coupled into 480,000 single-mode fibers 18 by 480,000 little arrays 17 of LD, then the output terminal of described single-mode fiber 18 is lined up 800 * 600 fiber array, signal modulator is added to digital modulation signals on 480,000 little arrays 17 of LD, on 800 * 600 fiber array, directly demonstrate bright image, directly project to demonstration on the screen 3 by projection lens system 2 then.
Make the projection display equipment of a three-primary color LED face battle array according to Fig. 3.Comprise light source 1, projection lens system 2, beam cementing prism 12, red mirror 7 and a blu-ray reflection mirror 8 and three signal modulators.
Wherein light source 1 is made up of three LED area array light sources, is respectively red-light LED face battle array 4, green light LED face battle array 5 and blue-ray LED face battle array 6; Three described signal modulators are red signal light modulator 9, green optical signal modulator 10, blue light signal modulator 11, corresponding one by one with described red-light LED face battle array 4, described green light LED face battle array 5 and described blue-ray LED face battle array 6 respectively, be separately positioned on the area array light source and the light path in the middle of the described beam cementing prism 12 of correspondence; The light that red-light LED face battle array 5 and blue-ray LED face battle array 6 are sent respectively by red mirror 7 and blu-ray reflection mirror 8 with beam reflection before the beam cementing prism 12 red signal light modulator 9 and blue light signal modulator 11 on modulate, the light that green light LED face battle array 5 is sent is directly modulated by the green optical signal modulator before the beam cementing prism 12, red, green, blue three light beams after the modulation projects on the suitable screen 3 of distance through projection lens system 2 after beam cementing prism 12 is synthetic a branch of.
With 25 single tube red LED, wavelength is 660nm, each power is 1W, be arranged in 5 * 5 array as red LED face battle array 4, make corresponding green light LED face battle array 5 according to the ratio of synthesize white light again, such as wavelength is 515nm, makes blue-ray LED face battle array 6 according to the ratio of synthesize white light equally, is 440nm such as wavelength; Making above-mentioned red LED face battle array 4, green light LED face battle array 5 and blue-ray LED face battle array 6 respectively according to the ratio of synthesize white light is that those skilled in the art are adequate, is not described in detail in this.In this device, red signal light modulator 9 adopts a ruddiness transmission-type liquid crystal light valve, and green optical signal modulator 10 adopts a green glow transmission-type liquid crystal light valve, and blue light signal modulator 11 adopts a blue light transmission-type liquid crystal light valve.The light that red-light LED face battle array 5 and blue-ray LED face battle array 6 are sent respectively by red mirror 7 and blu-ray reflection mirror 8 with beam reflection before the beam cementing prism 12 ruddiness transmission-type liquid crystal light valve and blue light transmission-type liquid crystal light valve on modulate, the light that green light LED face battle array 5 is sent is directly modulated by the green glow transmission-type liquid crystal light valve before the beam cementing prism 12, red, green, blue three light beams after the modulation is after beam cementing prism 12 is synthetic a branch of, pre-projecting type projection lens system 2 through routine projects on the suitable screen 3 of distance, can realize that bright in luster, abundant image shows.The beam cementing prism that present embodiment uses is the X beam cementing prism of buying on the market, and it is glued together behind grinding, polishing, plated film respectively by four prisms and forms; Ruddiness, green glow and blue light transmission-type liquid crystal light valve are device that sell in market.
Embodiment 4
Make a three-primary color LED optical coupling face array projection display device according to Fig. 4.Comprise light source 1, ruddiness reflective mirror 7 and blue light reflective mirror 8, three signal modulators, beam cementing prism 12 and projection lens systems 2.
Wherein, light source 1 is made up of the fiber array of green light LED face battle array 5, red-light LED face battle array 4, blue light light LED face battle array 6 and three correspondences; Form red-light LED face battle arrays 4 with 25 single tube red LED, wavelength is 660nm, and each power is 1W, be coupled into respectively 25 single-mode fibers 22 ', the fiber array of single-mode fiber bundle 22 ' be arranged in 5 * 5; Making green light LED fiber array 5 and blue-ray LED fiber array 6 according to the ratio of synthesize white light again, is 515nm such as the wavelength of green light LED, and the wavelength of blue-ray LED is 440nm.
All the other are identical with embodiment 3.
Embodiment 5
Make a three primary colours LD face battle array colour projection display according to Fig. 5, with red-light LED face battle array 4, green light LED face battle array 5 and the blue-ray LED face battle array 6 in ruddiness LD face battle array, green glow LD face battle array and the blue light LD face battle array alternative embodiment 3, and adopt identical number designation to represent in the present embodiment.Present embodiment also comprises ruddiness eliminating coherence device 13, green glow eliminating coherence device 14, blue light eliminating coherence device 15; After wherein the light that sends of ruddiness LD face battle array 4 and blue light LD face battle array 6 passes through ruddiness eliminating coherence device 13 and blue light eliminating coherence device 15 respectively, again respectively by red mirror 7 and blu-ray reflection mirror 8 with beam reflection before the beam cementing prism 12 red signal light modulator 9 and blue light signal modulator 11 on modulate, the light that green glow LD face battle array 5 is sent enters green glow eliminating coherence device 14 backs and directly modulates by the signal modulator 10 before the beam cementing prism 12, red after the modulation, green, blue beam projects on the suitable screen 3 of distance through projection lens system 2 after beam cementing prism 12 is synthetic a branch of.
With the red LD of 25 single tubes, wavelength is 670nm, each power is 1W, is arranged in 5 * 5 array as red LD face battle array 4, makes corresponding green glow LD face battle array 5 (is 515nm such as wavelength) and blue light LD face battle array 6 (is 440nm such as wavelength) according to the ratio of synthesize white light again.In the device of present embodiment, red signal light modulator 9 adopts a ruddiness digital micro-mirror light valve, green optical signal modulator 10 adopts green glow digital micro-mirror light valve, blue light signal modulator 11 to adopt blue light digital micro-mirror light valve, ruddiness eliminating coherence device 13 adopts a ruddiness phase modulation (PM) plate, green glow eliminating coherence device 14 adopts a green glow phase modulation (PM) plate, and blue light eliminating coherence device 15 adopts a blue light phase modulation (PM) plate.
Other is with embodiment 3.
Claims (10)
1. a projection display equipment comprises light source (1), projection lens system (2) and at least one signal modulator, it is characterized in that, described light source (1) is at least one LED or LD area array light source that is made of LED or LD array; The light beam that described light source (1) sends enters described projection lens system (2); Described signal modulator and described light source (1) are electrically connected or are arranged on the light path between described light source (1) and the described projection lens system (2), are used for load signal.
2. by the described projection display equipment of claim 1, it is characterized in that described LED or LD are red-light LED or LD, green light LED or LD or blue-ray LED or LD; Described red-light LED or LD output wavelength scope are 610～700nm; Described green light LED or LD output wavelength scope are 510～545nm; Described blue-ray LED or LD output wavelength are 400～490nm.
3. by the described projection display equipment of claim 1, it is characterized in that the single tube LED of described LED or LD or the power bracket of LD are 1 microwatt～100 watt.
4. by the described projection display equipment of claim 1, it is characterized in that, also comprise one with the corresponding fiber array of described light source (1), described light source (1) emission be optically coupled into corresponding fiber array, enter described projection lens system (2) from the light of described fiber array outgoing.
5. by the described projection display equipment of claim 4, it is characterized in that described optical fiber comprises single cladded-fiber, doubly clad optical fiber, conical fiber, microstructured optical fibers, multi-core fiber; Described fiber optic materials is quartz, glass or polymkeric substance.
6. by claim 1 or 4 described projection display equipments, it is characterized in that each pixel of described LED or LD area array light source comprises the LED or the LD of different wave length; Described signal modulator is electrically connected with light source (1), is used to control LED or LD, and the signal loading that will show is to described area array light source (1).
7. by claim 1 or 4 described projection display equipments, it is characterized in that described LED or LD area array light source are made up of ruddiness face battle array (4), green glow face battle array (5) and blue light face battle array (6); Described green glow face battle array (5) output wavelength scope is 510～545nm; Described blue light face battle array (6) output wavelength is 400～490nm; Described ruddiness face battle array (4) output wavelength scope is 610～700nm; This display device also comprises a beam cementing prism (12) and three signal modulators, three described signal modulators are corresponding with described ruddiness face battle array (4), described green glow face battle array (5) and described blue light face battle array (6) respectively, are separately positioned on the corresponding area array light source and the light path in the middle of the described beam cementing prism (12); After the signal modulator load signal, described beam cementing prism (12) synthesizes a branch of described projection lens system (2) that enters with three light beams.
8. by the described projection display equipment of claim 7, it is characterized in that described signal modulator comprises a light valve; Described light valve is transmission-type liquid crystal light valve, reflective liquid crystal light valve or digital micro-mirror light valve.
9. by the described projection display equipment of claim 7, it is characterized in that described ruddiness face battle array (4), green glow face battle array (5) and blue light face battle array (6) all are made up of the LD array; The eliminating coherence device of one respective wavelength is set respectively on the light path between ruddiness face battle array (4), green glow face battle array (5), blue light face battle array (6) and the described beam cementing prism (12).
10. by the described projection display equipment of claim 9, it is characterized in that described eliminating coherence device comprises transition catoptron, multimode optical fiber or the phase modulation (PM) plate that shake.
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| CNA2006100831265A CN101086608A (en) | 2006-06-05 | 2006-06-05 | Projection display device |
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|---|---|---|---|
| CNA2006100831265A CN101086608A (en) | 2006-06-05 | 2006-06-05 | Projection display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815376A (en) * | 2009-02-24 | 2010-08-25 | 北京中视中科光电技术有限公司 | Hybrid light source device |
| WO2012031405A1 (en) * | 2010-09-10 | 2012-03-15 | 青岛海信信芯科技有限公司 | Stereoscopic projection method and system, and television |
| WO2013152570A1 (en) * | 2012-04-10 | 2013-10-17 | 海信集团有限公司 | Light source for projection display |
| CN105163100A (en) * | 2015-10-08 | 2015-12-16 | 杭州虹视科技有限公司 | Laser display system and laser display method |
| CN107315249A (en) * | 2013-11-27 | 2017-11-03 | 奇跃公司 | Virtual and augmented reality System and method for |
| CN108388070A (en) * | 2017-02-03 | 2018-08-10 | 深圳奥比中光科技有限公司 | Fibre-optical projector and apply its depth camera |
| WO2018171542A1 (en) * | 2017-03-20 | 2018-09-27 | 成都理想境界科技有限公司 | Projection device and spatial imaging method |
| CN111385546A (en) * | 2018-12-28 | 2020-07-07 | 中强光电股份有限公司 | Projection system and projection method |
| CN111641817A (en) * | 2014-06-03 | 2020-09-08 | Mtt创新公司 | Method and apparatus for displaying video data and image data |
| WO2022037418A1 (en) * | 2020-08-20 | 2022-02-24 | 深圳光峰科技股份有限公司 | Light source device and projection system |
| CN114333613A (en) * | 2021-11-24 | 2022-04-12 | 石家庄市京华电子实业有限公司 | Micro-interval LED display screen module based on field sequence color technology |
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- 2006-06-05 CN CNA2006100831265A patent/CN101086608A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815376A (en) * | 2009-02-24 | 2010-08-25 | 北京中视中科光电技术有限公司 | Hybrid light source device |
| WO2012031405A1 (en) * | 2010-09-10 | 2012-03-15 | 青岛海信信芯科技有限公司 | Stereoscopic projection method and system, and television |
| CN103189792A (en) * | 2010-09-10 | 2013-07-03 | 青岛海信信芯科技有限公司 | Stereoscopic projection method and system, and television |
| CN103189792B (en) * | 2010-09-10 | 2015-08-05 | 青岛海信信芯科技有限公司 | Stereoprojection method and system, televisor |
| WO2013152570A1 (en) * | 2012-04-10 | 2013-10-17 | 海信集团有限公司 | Light source for projection display |
| US10197896B2 (en) | 2012-04-10 | 2019-02-05 | Hisense Co., Ltd. | Laser light source with reduced beam combination operation for projection display |
| CN107315249A (en) * | 2013-11-27 | 2017-11-03 | 奇跃公司 | Virtual and augmented reality System and method for |
| CN111641817A (en) * | 2014-06-03 | 2020-09-08 | Mtt创新公司 | Method and apparatus for displaying video data and image data |
| CN111641817B (en) * | 2014-06-03 | 2023-02-17 | Mtt创新公司 | Method and apparatus for displaying video data and image data |
| CN105163100A (en) * | 2015-10-08 | 2015-12-16 | 杭州虹视科技有限公司 | Laser display system and laser display method |
| CN108388070A (en) * | 2017-02-03 | 2018-08-10 | 深圳奥比中光科技有限公司 | Fibre-optical projector and apply its depth camera |
| WO2018171542A1 (en) * | 2017-03-20 | 2018-09-27 | 成都理想境界科技有限公司 | Projection device and spatial imaging method |
| US11606472B2 (en) | 2017-03-20 | 2023-03-14 | Chengdu Idealsee Technology Co., Ltd. | Projection device and spatial imaging method |
| CN111385546A (en) * | 2018-12-28 | 2020-07-07 | 中强光电股份有限公司 | Projection system and projection method |
| WO2022037418A1 (en) * | 2020-08-20 | 2022-02-24 | 深圳光峰科技股份有限公司 | Light source device and projection system |
| CN114333613A (en) * | 2021-11-24 | 2022-04-12 | 石家庄市京华电子实业有限公司 | Micro-interval LED display screen module based on field sequence color technology |
| CN114333613B (en) * | 2021-11-24 | 2024-04-02 | 石家庄市京华电子实业有限公司 | Micro-spacing LED display screen module based on field sequential color technology |
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