CN1396476A - Colour display with field sequence type dual optical valves - Google Patents
Colour display with field sequence type dual optical valves Download PDFInfo
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- CN1396476A CN1396476A CN 01122731 CN01122731A CN1396476A CN 1396476 A CN1396476 A CN 1396476A CN 01122731 CN01122731 CN 01122731 CN 01122731 A CN01122731 A CN 01122731A CN 1396476 A CN1396476 A CN 1396476A
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Abstract
A colour projection display with two light valves and back light source composed of exciting light source and luminous wheel is disclosed. Under the action of exciting light source and luminous wheel, the back light source emits red, green and blue lights, which are projected respectively to both light valves to sequentially form two base-colour images on the first light valve and the third base-colour image or two images with different colour on the second one. These images are combined into a multi-colour image which is then projected to screen. Its advnatages are high brightness, colour purity and definition, and low cost.
Description
The invention relates to colour display device, particularly the improvement of colour display with field sequence type dual optical valves.
Along with the development of HDTV, colour projection display is particularly just being brought into play the effect that becomes more and more important with the colour projection display of backlight.Colour projection display is to utilize optical system and projector space that the colorful light-emitting image is amplified and be presented at device on the projection screen.In addition, also development is very fast recently for the virtual type colour display device of band backlight.The display device (light valve) that the colour projection display of band backlight and virtual type colour display device adopt mainly is TFT-LCD and DMD, and wherein TFT-LCD is divided into transmission-type TFT-LCD and reflective TFT-LCD (comprising LCOS) again.According to the light valve quantity difference that adopts, the TFT-LCD colour projection display is divided into single liquid crystal screen formula and three liquid crystal display formulas, and the DMD colour projection display is divided into single DMD formula and three DMD formulas, also comprises two DMD formulas in addition.Except that single DMD formula is the field sequence type with two DMD formulas, single liquid crystal screen formula, three liquid crystal display formulas and three DMD formulas all are same up-to-date styles.
Three liquid crystal display formulas and three DMD formula colour projection display brightness height, picture quality is good, but optical system, particularly colour splitting system are complicated, and need to adopt three display devices, so the cost height, the red, green, blue image three-colo(u)r is assembled and is had relatively high expectations simultaneously.Single liquid crystal screen formula colour projection display is simple, does not exist image to assemble problem, but stricter to the optical element requirement, three sub-pixels of red, green, blue all concentrate on the liquid crystal display in addition, and the liquid crystal display cost is much higher.Single DMD formula colour projection display is the simplest, and it only adopts a red, green, blue three look filter wheels to carry out color separation, but brightness is very low, and three DMD formulas are compared, and brightness is much lower, and picture quality is relatively poor.Two DMD formula colour projection displays adopt Huang, pinkish red double-colored filter wheel and a colour splitting prism to carry out color separation, and its relative merits are promptly compared with single DMD formula between three DMD formulas and single DMD formula, brightness is higher, but cost is also higher, compares with three DMD formulas, brightness is lower, but cost is also lower.
The objective of the invention is to solve existing field sequence type dual optical valves colour projection display, comprise the above-mentioned shortcoming that exists in the virtual type colour display device.In display device of the present invention, use rotary color light-emitting wheel (hereinafter to be referred as rotation light-emitting wheel or light-emitting wheel) to replace filter wheel, can excitation light-emitting material luminous light source (hereinafter to be referred as excitation source) replace white light source, can realize this purpose with having.
Be elaborated below.
The principle of three liquid crystal display formula colour projection displays is that the white light from light source is divided into red, green, blue three coloured light by dichronic mirror, shine respectively on each self-corresponding liquid crystal display, pixel is respectively through three kinds of primary colour signal modulation of red, green, blue in three liquid crystal displays, produce red, green, blue three width of cloth monochrome images, after overconvergence, synthesize coloured image, project on the projection screen by the projection amplifying lens at last, form the bigger coloured image of size.The brightness height of three liquid crystal display formula colour projection displays, picture quality is good, but device is complicated, image is assembled required height.The principle of single liquid crystal screen formula colour projection display is being divided into red, green, blue three coloured light from the white light of the light source dichronic mirror by three oblique arrangement, make respectively its with certain angular illumination on liquid crystal display, by microlens array plate red, green, blue is focused on separately the red, green, blue pixel again, after three kinds of primary colour signal modulation of red, green, blue, produce coloured image, this coloured image projects on the projection screen by the projection amplifying lens again, forms the bigger coloured image of size.Single screen formula colour projection display is simple, do not need to assemble, but more complicated and stricter to the requirement of color separation optical system and optical element.Though only use a liquid crystal display in addition in single liquid crystal screen formula colour projection display, in order to obtain and the same resolution of three liquid crystal display formulas, its pixel count is three times of liquid crystal display pixel count in the three liquid crystal display formulas, so cost is higher.
DMD is a kind of extremely promising new display spare that occurs not long ago and develop rapidly, compare with liquid crystal display formula colour projection display, DMD formula colour projection display has more excellent characteristic, its shortcoming is a DMD manufacturing process complexity, cost is higher than TFT-LCD (comprising LCOS), so DMD formula colour projection display cost is higher than the liquid crystal display formula.Three DMD formula principles are similar to three-screen type, be that it also is that the white light from light source is divided into red, green, blue three coloured light by dichronic mirror, shine respectively again on each self-corresponding DMD, micro mirror in three DMD (being pixel) is respectively after the modulation of red, green, blue primary colour signal, produce the red, green, blue monochrome image, through assembling, synthesizing, project at last and form the bigger coloured image of size on the projection screen again.Three DMD formula structures and three-screen type are similar, and the key distinction is that three liquid crystal displays are replaced by three DMD.But liquid crystal display can be used transmission mode in three liquid crystal display formulas, also available reflection mode, and DMD uses the reflection mode only in three DMD formulas.Three DMD formula shortcomings and three liquid crystal display formulas are roughly the same.In order to reduce cost, single DMD and two DMD colour projection display have appearred.Single DMD formula adopts a DMD and has the white light source of red, green, blue light component, adds the filter wheel of a high speed rotating between light source and DMD, is divided into red, green, blue look filter area on the filter wheel.When filter wheel rotated, it was a red, green, blue coloured light with white light conversion successively.When filter wheel forwarded red filter area to, white light became ruddiness by red filter coating, is radiated on the DMD, DMD is subjected to the danger signal synchronous modulation, shows red image, similarly, and when filter wheel forwards green filter area to, show green image, when forwarding blue filter area to, show blue image.Under the enough fast situation of filter wheel rotating speed,, form coloured image because of the human eye vision persistence characteristic.Single DMD formula is used the filter wheel color separation, carry out colour by the field sequence mode and show, so brightness significantly reduces.Compare with three DMD formulas, single DMD formula picture quality is relatively poor.But it is simple in structure, and cost is low, and the red, green, blue monochrome image does not need to assemble.Two DMD formula colour projection displays adopt two DMD, one is ruddiness DMD, another is green, blue light DMD, and with yellow, pinkish red double-colored filter wheel and Amici prism (CSP) replace red, green, blue filter wheel carries out color separation, gold-tinted after the filter wheel color separation is through whole internal reflection prism (TIRP), again after the colour splitting prism beam split, ruddiness projects ruddiness DMD, green glow projects green, blue light DMD, pinkish red coloured light after the filter wheel color separation is through TIRP, again after the CSP beam split, ruddiness still projects ruddiness DMD, and blue light projects green, blue light DMD, ruddiness is gone up micro mirror under the danger signal modulation with DMD, line by line scan successively synchronously, produce red image.Green, blue light is gone up micro mirror respectively under green and blue signal modulation with DMD, lines by line scan successively synchronously, and order produces green, blue image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image by behind CSP and the TIRP, synthesizes full-color image again.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.
Comprise the backlight of forming by excitation source and rotation light-emitting wheel in the of the present invention pair of light valve type colour projection display, projecting lens, color separation and close colour system system, two light valves, projection amplifying lens and projection screen, under the effect of excitation source and rotation light-emitting wheel, backlight produces red, green, blue three kinds of primary lights, red, green, blue light is incident upon respectively on two light valves by projecting lens and colour splitting system, wherein two kinds of primary lights are incident upon on the light valve in proper order, form two kinds of primary color images, two kinds of primary lights before the third primary lights projection or color combination are different from are incident upon on another light valve in proper order, form the third primary color image or color combination and be different from two kinds of preceding primary color images, they become coloured image by closing the colour system integration again, last coloured image is incident upon on the projection screen by the projection amplifying lens, forms the bigger coloured image of size.For example excitation source is a ultraviolet source, there are one group or order to be divided into the multi-group light-emitting district on the light-emitting wheel, every group of luminous zone is made up of two luminous zones, one or both primary colours luminescent materials of coated on one of them luminous zone, two kinds of primary colours luminescent materials before other two kinds or color combination of coated is different from another luminous zone, they send corresponding primary lights respectively under ultraviolet excitation, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, another is a liquid crystal display device, under in the end a kind of situation situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.For example a luminous zone is Yellow luminous district on the light-emitting wheel, be coated with azaleine on it, green luminescent material, another luminous zone is the cyan luminous zone, coated is green on it, blue emitting material, they send sodium yellow and cyan light respectively under ultraviolet excitation, perhaps be coated with azaleine on a luminous zone, green luminescent material, be coated with azaleine on another luminous zone, blue emitting material, they send sodium yellow and pinkish red coloured light respectively under ultraviolet excitation, perhaps coated green luminescent material on luminous zone, be coated with azaleine on another luminous zone, blue emitting material, they send green light and pinkish red coloured light respectively under ultraviolet excitation.With the luminous zone is yellow and cyan, its principle of work is described as follows: when the Yellow luminous district of light-emitting wheel rotates under the ultraviolet source successively, under ultraviolet excitation, send gold-tinted, gold-tinted is through projecting lens and TIRP, again after the CSP beam split, that ruddiness is incident upon is red, blue light is with on the DMD, and green glow is incident upon green glow with on the DMD, and two DMD go up micro mirrors respectively under red and green are modulated, line by line scan successively synchronously, produce red, green image.When the cyan luminous zone of light-emitting wheel rotates to ultraviolet source following time, send blue or green light successively, blue or green light is through projecting lens and TIRP, again after the CSP beam split, that blue light is incident upon is red, blue light is with on the DMD, and green glow still is incident upon green glow with on the DMD, and two DMD go up micro mirrors respectively under blue and green are modulated, line by line scan successively synchronously, produce blue, green image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image through CSP and TIRP, synthesizes full-color image again.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.Owing to replace filter wheel with light-emitting wheel, luminescence efficiency greatly improves, so brightness significantly improves.
The basic functional principle of of the present invention pair of light valve type colour projection display also can be applicable to little colour display device, promptly virtual type colour display device.The light valve that colour projection display and little colour display device adopt is basic identical, principle of work is also similar, difference only is: after red, green, blue three width of cloth monochrome images synthesize coloured image, this coloured image is to project on the projection screen by the projection amplifying lens in colour projection display, and is the coloured image (virtual image) after amplifying by the amplifying lens direct viewing in little colour display device.Little colour display device comprise by excitation source and rotation backlight, the color separation formed of light-emitting wheel and close that colour system is united, two light valves and amplifying lens.Under the effect of excitation source and rotation light-emitting wheel, it is red that backlight produces, green, blue three kinds of primary lights directly are incident upon respectively on two light valves by colour splitting system or by projecting lens and colour splitting system, wherein two kinds of primary lights are incident upon on the light valve in proper order, form two kinds of primary color images, two kinds of primary lights before the third primary lights projection or color combination are different from are incident upon on another light valve in proper order, form the third primary color image or color combination and be different from two kinds of preceding primary color images, they become coloured image by closing the colour system integration again, human eye is watched coloured image by amplifying lens, can see the virtual coloured image that size is bigger.Excitation source, light-emitting wheel, the colour splitting system that colour projection display and little colour display device adopt, to close the unify performance of light valve and structure etc. of colour system basic identical.
In the various devices, ultraviolet source can replace with the purple light source more than of the present invention, also can replace with blue-light source and blue-green light source.For different light sources, should select corresponding luminescent material, luminescent material comprises phosphor and luminous organic material, and simultaneously the dichroism of light-emitting wheel Shang Ge district optical characteristics (emission spectrum, transmissison characteristic, reflection characteristic), colour splitting system and the light characteristic that closes that closes the colour system system are also answered corresponding change.For ultraviolet source and purple light source, two luminous zones are Yellow luminous district and cyan luminous zone on the light-emitting wheel, also can be Yellow luminous district and magenta luminous zone, can also be green emitting district and magenta luminous zone.For blue-light source, be divided into Yellow luminous district and blue light clear area on the light-emitting wheel, coated has red, green luminescent material in the Yellow luminous district, sends by the sodium yellow red, that green light is formed down blue-light excited, and the blue light clear area is passed through blue light.For the blue-green light source, be divided into Yellow luminous district and blue or green optical transparency district on the light-emitting wheel, coated has red, green luminescent material in the Yellow luminous district, excites down in blue, green light, sends sodium yellow, blue or green optical transparency district passes through indigo plant, green glow, perhaps be divided into emitting red light district and blue or green optical transparency district on the light-emitting wheel, coated has red illuminating material in the emitting red light district, excites down in blue, green light, send red light, blue or green optical transparency district passes through indigo plant, green glow.In addition, for the blue-green light source, also can be divided into emitting red light district and green glow clear area on the light-emitting wheel, coated has red illuminating material in the emitting red light district, excite down in green light, send red light, the green glow clear area is passed through green glow, excitation source sends contains indigo plant, the blue or green light of green glow is divided into indigo plant through colour splitting system earlier, green glow, blue light project on the light valve, and green glow projects on the rotation light-emitting wheel, green glow is in proper order by green glow clear area and arrival emitting red light district then, excite down at green glow, red illuminating material sends ruddiness, and is green, ruddiness order again is incident upon on another light valve.The clear area both can be a transmission-type, and for example glass also can be reflection-type, for example metallic surface, at the metallic film of evaporation on glass.
In above various devices, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, another is a liquid crystal display device, under in the end a kind of situation situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.
Fig. 1, Fig. 2 and Fig. 3 are colour projection display structural representations of the present invention, and Fig. 4 is an existing pair of DMD formula colour projection display structural representation, and Fig. 5 is existing three liquid crystal display formula colour projection display structural representations.In Fig. 1～Fig. 5,1A is a metal halide lamp, and 1B is cyan LED-backlit source, 1C is the white metal halide lamp, and 2A is a collector lens, and 2B is a projecting lens, LW is a light-emitting wheel, and FW is a filter wheel, and TIRP is an one internal reflection prism, CSP is a colour splitting prism, and LV1, LV2 are light valves, and 3A is the projection amplifying lens, 3B is an amplifying lens, and 4A is a projection screen, and 4B is a virtual image, E is the beholder, and 2C is a projecting lens.In Fig. 3 and Fig. 5, DM1 and DM2 are that dichronic mirror, DM3 and DM4 close the look mirror, and M, M1 and M2 are catoptrons, and 2r, 2g, 2b are respectively red, green, blue transmission-type LCD, and F is infrared-ultraviolet cut-on optical filter.
Specify with example below.
Example 1
1A is ultraviolet lead-mercury halide lamp in the colour projection display of Fig. 1,2A is a collector lens, 2B is a projecting lens, LW is a light-emitting wheel, TIRP is an one internal reflection prism, and CSP is a colour splitting prism, and LV1 and LV2 are respectively green glow DMD and red, blue light DMD, 3A is the projection amplifying lens, and 4A is a projection screen.Lead-mercury halide lamp the time sends ultraviolet light in work, and series arrangement yellow, blue or green, yellow, blue or green, yellow, blue or green three groups of luminous zones on light-emitting wheel, on it respectively coated red, green luminescent material and green, blue emitting material are arranged.This device principle of work is as follows: when the Yellow luminous district of light-emitting wheel rotates to ultraviolet source following time successively by certain rotating speed, under ultraviolet excitation, send successively by the gold-tinted red, that green glow is formed, gold-tinted is through projecting lens and TIRP, and again after the CSP beam split, that ruddiness is incident upon is red, blue light is with on the DMD, green glow is incident upon green glow with on the DMD, micro mirror under red and green modulation, is lined by line scan respectively synchronously successively on two DMD, produces red, green image.When the cyan luminous zone of light-emitting wheel rotates to excitation source following time, under ultraviolet excitation, send successively by the blue or green light green, that blue light is formed, blue or green light is through projecting lens and TIRP, and again after the CSP beam split, that blue light is incident upon is red, blue light is with on the DMD, green glow still is incident upon green glow with on the DMD, two DMD go up micro mirror respectively under blue and green modulation, line by line scan successively synchronously, produce indigo plant, green image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image synthesizes full-color image after closing TIRP by CSP again.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.
Example 2
In the colour projection display of Fig. 1, LV1 and LV2 are respectively blue light LCOS and red, green glow DMD, series arrangement blue or green, pinkish red, blue or green, pinkish red, blue or green, pinkish red three groups of luminous zones on light-emitting wheel, on it respectively coated green, blue emitting material and red, blue emitting material are arranged, the CSP dichroism is different with CSP in the example 1, and all the other are with example 1.Its principle of work and example 1 are basic identical.When the cyan luminous zone of light-emitting wheel rotates under the ultraviolet source by certain rotating speed successively, under ultraviolet excitation, send by the cyan light green, that blue light is formed, cyan light is through projecting lens and TIRP, and again after the CSP beam split, that green glow is incident upon is red, green glow is with on the DMD, blue light is incident upon blue light with on the LCOS, pixel under green and blue signal modulation, is lined by line scan respectively synchronously successively among last micro mirror of DMD and the LCOS, produces green, blue image.When the magenta luminous zone of light-emitting wheel rotates to excitation source following time, send successively by the pinkish red coloured light red, that blue light is formed, pinkish red coloured light is through projecting lens and TIRP, again after the CSP beam split, that ruddiness is incident upon is red, green glow is with on the DMD, and blue light is incident upon blue light with on the LCOS, and pixel is respectively under red and blue signal are modulated among last micro mirror of DMD and the LCOS, line by line scan successively synchronously, produce red, blue image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image by behind CSP and the TIRP, synthesizes full-color image again.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.
Example 3
In the colour projection display of Fig. 1,1A is cyan thallium-indium iodide lamp, series arrangement green and blue light clear area, emitting red light district, green and blue light clear area, emitting red light district, green and blue light clear area, emitting red light district on light-emitting wheel, coated has red illuminating material in the emitting red light district, and all the other are with example 2.Its principle of work is as follows: when the green of light-emitting wheel and blue light clear area rotate under cyan thallium-indium iodide light source successively, thallium-indium iodide light source send by the cyan light green, that blue light is formed through green and blue light clear area, projecting lens and TIRP, again after the CSP beam split, that green glow is incident upon is red, green glow is with on the DMD, blue light is incident upon blue light with on the LCOS, pixel under green and blue signal modulation, is lined by line scan respectively synchronously successively among last micro mirror of DMD and the LCOS, produces green, blue image.When the emitting red light district of light-emitting wheel rotates under thallium-indium iodide light source, under the exciting of indigo plant, green glow, light-emitting wheel sends red light successively, red light is through projecting lens and TIRP, again through CSP, be incident upon red, green glow with on the DMD, the last micro mirror of DMD is under the danger signal modulation, line by line scan successively synchronously, produce red image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image synthesizes full-color image after closing TIRP by CSP again.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.
Example 4
1B is the cyan led light source in little colour display device of Fig. 2, and wherein 1B1 is a diffusing panel, and 1B2 is cyan LED, and 1B3 is a reflecting plate, and 3B is an amplifying lens, and 4B is a virtual image, and all the other are with example 3.LED sends by the cyan light green, that blue light is formed when work, and it passes through the diffusing panel uniform irradiation on light-emitting wheel.Its principle of work and example 3 are similar, its difference only is: at the red, green, blue color image by CSP and TIRP, after synthesizing a width of cloth full-color image, this coloured image is not to project on the projection screen by the projection amplifying lens, but directly watches coloured image (virtual image) after the amplification by amplifying lens before TIRP.
Example 5
In the colour projection display of Fig. 3,1A is cyan thallium-indium iodide lamp, F is infrared-ultraviolet cut-on optical filter, DM1 is a dichronic mirror, DM3 closes the look mirror, M is a catoptron, LV2 is red, green glow DMD, LV1 is blue light TFT-LCD, 2C is a projecting lens, and series arrangement green glow clear area, emitting red light district, green glow clear area, emitting red light district, green glow clear area, emitting red light district on light-emitting wheel, and coated has red illuminating material in the emitting red light district, send ruddiness under green glow excites, all the other are with example 3.Its principle of work is as follows: when thallium-indium iodide light source send by the cyan light green, that blue light is formed after the DM1 beam split, blue light reflects on mirror M by DM1, be incident upon blue light with on the LCOS, pixel is lined by line scan under the blue signal modulation synchronously successively among the LCOS, produces blue image.Green glow then from the DM1 reflection, is incident upon on the light-emitting wheel LW.When the green glow clear area of LW rotates to green glow following time successively by certain rotating speed, green glow is by the green glow clear area, and through projecting lens be incident upon red, green glow with DMD on, the last micro mirror of DMD is lined by line scan under the green modulation synchronously successively, the generation green image.When the emitting red light district of light-emitting wheel rotates to green glow following time successively, excite down at green glow, send ruddiness, ruddiness through projecting lens be incident upon red, green glow with DMD on, the last micro mirror of DMD is lined by line scan under the danger signal modulation synchronously successively, the generation red image.Under the enough fast condition of light-emitting wheel rotating speed, the red, green, blue color image becomes full-color image after DM2 closes light.It projects on the projection screen through the projection amplifying lens again, forms the bigger coloured image of size.
Claims (7)
1. colour projection display, it is characterized in that comprising in this device the backlight of forming by excitation source and rotation light-emitting wheel, projecting lens, color separation and close colour system system, two light valves, projection amplifying lens and projection screen, under the effect of excitation source and rotation light-emitting wheel, it is red that backlight produces, green, blue three kinds of primary lights are incident upon respectively on two light valves by projecting lens and colour splitting system, wherein two kinds of primary lights are incident upon on the light valve in proper order, form two kinds of primary color images, two kinds of primary lights before the third primary lights projection or color combination are different from are incident upon on another light valve in proper order, form the third primary color image or color combination and be different from two kinds of preceding primary color images, they become coloured image by closing the colour system integration again, last coloured image is incident upon on the projection screen by the projection amplifying lens, forms the bigger coloured image of size.
2. virtual type colour display device, it is characterized in that comprising in this device the backlight of forming by excitation source and rotation light-emitting wheel, color separation and close colour system system, two light valves and amplifying lens, under the effect of excitation source and rotation light-emitting wheel, it is red that backlight produces, green, blue three kinds of primary lights directly are incident upon respectively on two light valves by colour splitting system or by projecting lens and colour splitting system, wherein two kinds of primary lights are incident upon on the light valve in proper order, form two kinds of primary color images, two kinds of primary lights before the third primary lights projection or color combination are different from are incident upon on another light valve in proper order, form the third primary color image or color combination and be different from two kinds of preceding primary color images, they become coloured image by closing the colour system integration again, human eye is watched coloured image by amplifying lens, can see the virtual coloured image that size is bigger.
3. according to the colour display device of claim 1 or 2, it is characterized in that excitation source is ultraviolet source or purple light source, there are one group or order to be divided into the multi-group light-emitting district on the light-emitting wheel, every group of luminous zone is made up of two luminous zones, one or both primary colours luminescent materials of coated on one of them luminous zone, two kinds of primary colours luminescent materials before other two kinds or color combination of coated is different from another luminous zone, they are at ultraviolet light or the purple light excited following corresponding primary lights that send respectively, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, another is a liquid crystal display device, under in the end a kind of situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.
4. according to the colour display device of claim 3, it is characterized in that being coated with azaleine on a luminous zone on the light-emitting wheel, green luminescent material, coated is green on another luminous zone, blue emitting material, they are in ultraviolet light or purple light excited sodium yellow and the cyan light sent respectively down, perhaps be coated with azaleine on a luminous zone, green luminescent material, be coated with azaleine on another luminous zone, blue emitting material, they are at ultraviolet light or purple light excited sodium yellow and the pinkish red coloured light of sending respectively down, perhaps coated green luminescent material on luminous zone, be coated with azaleine on another luminous zone, blue emitting material, they are at ultraviolet light or purple light excited green light and the pinkish red coloured light of sending respectively down.
5. according to the colour display device of claim 1 or 2, it is characterized in that excitation source is a blue-light source, there are one group or order to be divided into many Yellow luminous districts of group and blue light clear areas on the light-emitting wheel, coated has red in the Yellow luminous district, green luminescent material, they send sodium yellow under blue-light excited, the blue light clear area is passed through blue light, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, another is a liquid crystal display device, under in the end a kind of situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.
6. according to the colour display device of claim 1 or 2, it is characterized in that excitation source is for containing indigo plant, the cyan light source of green glow, there are one group or order to be divided into many Yellow luminous districts of group and blue or green optical transparency districts on the light-emitting wheel, coated has red in the Yellow luminous district, green luminescent material, in indigo plant, green light excites down, send sodium yellow, blue or green optical transparency district makes indigo plant, green glow passes through, or there are one group or order to be divided into many group emitting red light districts and blue or green optical transparency districts on the light-emitting wheel, coated has red illuminating material in the emitting red light district, in indigo plant, green light excites down, send red light, blue or green optical transparency district makes indigo plant, green glow passes through, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, and another is a liquid crystal display device, under in the end a kind of situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.
7. according to the colour display device of claim 1 or 2, it is characterized in that excitation source is for containing indigo plant, the cyan light source of green glow, there are one group or order to be divided into many group emitting red light districts and green glow clear areas on the light-emitting wheel, coated has red illuminating material in the emitting red light district, excite down in green light, send red light, the green glow clear area is passed through green glow, excitation source sends contains indigo plant, the blue or green light of green glow is divided into indigo plant through colour splitting system earlier, green glow, blue light projects on the light valve, green glow projects on the rotation light-emitting wheel, green glow by green glow clear area and arrival emitting red light district, excites down at green glow in proper order then, and red illuminating material sends ruddiness, green, ruddiness order again is incident upon on another light valve, light valve is that two Digital Micromirror Device or two liquid crystal display devices or one are Digital Micromirror Device, and another is a liquid crystal display device, under in the end a kind of situation, order shows that the light valve of two kinds of primary color images is a Digital Micromirror Device, and the light valve that shows a kind of primary color image is a liquid crystal display device.
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| CN 01122731 CN1396476A (en) | 2001-07-14 | 2001-07-14 | Colour display with field sequence type dual optical valves |
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| CN 01122731 CN1396476A (en) | 2001-07-14 | 2001-07-14 | Colour display with field sequence type dual optical valves |
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| CN (1) | CN1396476A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345058C (en) * | 2005-04-18 | 2007-10-24 | 东华大学 | Mono-chip single-colour wheel stereo projection optical engine |
| CN106371272A (en) * | 2015-07-20 | 2017-02-01 | 深圳市光峰光电技术有限公司 | Light synthesis control system and projector |
| CN110133857A (en) * | 2018-02-02 | 2019-08-16 | 中强光电股份有限公司 | Projection arrangement and bare engine module |
-
2001
- 2001-07-14 CN CN 01122731 patent/CN1396476A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345058C (en) * | 2005-04-18 | 2007-10-24 | 东华大学 | Mono-chip single-colour wheel stereo projection optical engine |
| CN106371272A (en) * | 2015-07-20 | 2017-02-01 | 深圳市光峰光电技术有限公司 | Light synthesis control system and projector |
| CN110133857A (en) * | 2018-02-02 | 2019-08-16 | 中强光电股份有限公司 | Projection arrangement and bare engine module |
| CN110133857B (en) * | 2018-02-02 | 2021-09-03 | 中强光电股份有限公司 | Projection device and optical-mechanical module |
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