TW201033723A - Laser projection system - Google Patents

Abstract

A laser projection system is disclosed. The laser projection system comprises a projection screen and a laser projector. The projection screen comprises at least one luminous layer having at least one luminous material. The luminous material could be excited by an excitation light of a wavelength range to produce an excited luminous material of another wavelength range, and a transverse distance of each luminous material particles paralleling to the projection screen plane is much smaller than the diameter of laser beam cross section; The laser projector comprises a laser source module, a laser signal modulation module, a light consolidating module, a revolving plane mirror module, a revolving plane mirror control module and a signal conversion module. The laser projector generates a laser excitation according to a image signal of a single image frame or a dynamic image frame, and projects to the projection screen for generating an image, so as to display a high identification projection image on the projection screen with the effect of the almost transparent under a natural light environment, enabling the projection image, as well as the object behind the projection screen to be seeable in order to enhance an efficiency and application range of the laser projection system.

Description

201033723 Laser k modulation module 220 Convergence module 230 Rotary plane mirror module 240 Rotary plane mirror control module 250 Signal conversion module 260 Laser optical module 270 V. If there is a chemical formula in this case, please reveal the best display Chemical formula of the invention: (None) VI. Description of the invention: • Technical field to which the invention pertains The invention relates to a laser projection system, in particular to a laser projection device, which is based on a single picture or a dynamic picture. The image signal is generated to generate an excitation light=light, and the image is generated by shooting onto a matching projection screen, so that the projection screen can display a high-resolution projection in a natural light environment with a nearly transparent effect. The picture 'for viewing the projected picture and simultaneously seeing the object behind the projection screen. [Prior Art] There have been many prior art techniques relating to the design of laser projection systems, including LJS 6,986,581, US 7,090,355, US 7,182,467, US 7,213,923, and US 7,452,082. g) m) related technology; including DS6, 843, 568 and its reference (Referencescited) and other public information (other publication), etc. reveals related technologies of laser scanning display device (;aser scanning display); such as US 6,329,966 A technique for revealing a UV beam on a phosphor dots on a film; for example, US Pat. No. 4,213,153 discloses a modulated UV laser on phosphorus material to form image. Related Art; for example, US 6,900,916 discloses a related technique for scanning ultraviolet light to generate images on fluoresce film. 201033723 ❹ As shown in FIG. 1 'A prior art laser projection system 100 includes a laser projector 10 and a projection screen 101. The laser projector 10 is used to project an image onto the projection screen 101 based on the image signal Si. The laser projector 10 includes a laser light source module 110 and a rotating plane mirror module 120. The laser optical module 110 includes a red visible light laser source 111, a blue visible light laser source 112, a green visible laser light source 111, a light combining module 115, and a modulation module 114. The red visible light laser source 111, the blue visible laser light source 112, and the green visible laser light source 113 are respectively used to emit red, visible, and visible laser beams Lr according to the driving currents IRD, IBD, and iGD. , LB, LG. The modulation module 114 is configured to provide the red visible laser light source 111, the blue visible laser light source 112, and the green visible laser light source 113 for driving the currents Ird, Ibd, and Igi^' respectively according to the image signal S]. The signal beams of the laser beams lr, LB, and LG are modulated to each other to achieve the light intensity required for the corresponding pixel color on the screen. The illuminating module 115 is used to = iiiLR, LB, L (^ converge to the same path, the same direction, to generate the modulation ΐΪ ί ° ° when rotating the plane mirror 16120 will be modulated laser beam "reflection group silk 'The laser projector 10 changes the angle of the modulated laser beam by controlling the angle θ of the rotating plane mirror and the deflection angle 9 to reflect the position of the 雷 糊 糊 对 彡 彡 彡 彡 彡 1 1 1 1 1 1 1 1 1 1 Curtain 1〇1 will scatter the modulated laser beam Lm to display the written. The shape defect: the first 'is limited by the projection principle of the projection mirror module using the scattering principle, the shadow picture; the third, |1 den f, the distance 0 must be stretched to produce a larger projection by the screen scattering or reverse visible light when it is illuminated to the imaging screen. 'The invention will receive' and reduce the color of the image to the laser projection. The disadvantages of the prior art are effectively solved, so as to increase the use of power amplifiers and application fields. [Abstract] 3,52 201033723 The object of the present invention is to provide a laser projection system which utilizes a laser projector The laser projector can be based on a single picture or a dynamic picture The image signal generates excitation laser light and is projected onto a matching projection screen to generate an image frame. The projection screen comprises at least a light-emitting layer having at least one luminescent material which is excited by a certain wavelength range. Irradiating and exciting to generate a substance of another wavelength range of excitation light, and the lateral distance between the particles of each luminescent substance parallel to the plane of the projection screen is much smaller than the cross-sectional diameter of the laser beam, so that the projection screen is The high-resolution projection image can be presented in a natural light environment with a nearly transparent effect, so that the projected image can be seen and the object behind the projection screen can be seen at the same time, thereby improving the efficiency and application range of the laser projection system. A further object of the present invention is to provide a laser projection system, which can further adopt: = wavelength of visible light 'includes and is not limited to 808 nm, 850 nm, 98 〇 lung, and 1 〇 64 nm, etc., or the sensitivity of the human eye is poor. The wavelength, including and not limited to K4〇5mn, and 780nm, the laser is used as the laser source of the laser light source module, and the wood selection is similar to the color of the excited light. The excitation light source includes, but is not limited to, an image of blue (wavelength about 45 〇 nm) generated by laser light having a wavelength of about 4 〇 5 nm (blue-violet) and 450 mn (blue), or 780 nm (red), 640 nm. The (red) laser light excites the luminescent layer to generate, and the color (wavelength, image of about 640_) reduces the color mixing phenomenon caused by the reflection or reflection of the excitation light by the projection screen. Another goal of the present invention is to provide a mine. Projection system, wherein the laser light, the module further comprises a -type laser light source module and a second type of laser light source module, and the transparent projection screen system comprises a light emitting layer and a a scattering layer, and the illuminating layer faces the beam scanned by the laser projector before the scattering layer; wherein the first type of laser system ton contains 彡, the group of laser sources can correspond to each of the occupational wavelengths 8. The first type of wavelength of the excitation light wavelength range of the various luminescent substances in the luminescent layer ^ the various luminescent substances in the green ray are caused to generate e X light, /, § / the first type of laser light source module Including at least one set of shots: body ί ί ί long laser light; The light layer absorbs and scatters the laser light of the second type of laser light source to the second type, so that most of the laser light of the wavelength-like wavelength can pass through the light-emitting layer and enter the scattering layer. Absorbing 4.52 201033723 Most of the first type of laser source module emits a first type of wavelength of laser light; wherein the scattering layer is used to scatter a second type of wavelength of laser light and in the luminescent layer _ by the first type of wavelength ray The excited light excited by the light. Another object of the present invention is to provide a laser projection system, wherein the light-emitting layer of the projection screen is further compatible with various other functional layers, including an excited light absorbing layer, an excitation light absorbing layer, an excited light and a scattered light absorbing layer, and scattering. a layer, an excitation light reflecting layer, a partially reflected layer of the excited light, a partially reflected light layer, a light collecting layer, a partial light shielding layer, and the like, are combined to form a projection screen, thereby enhancing the laser projection system Use effects and application areas.

Another object of the present invention is to provide a laser projection system, wherein the laser projector further comprises at least one convex mirror disposed between the rotating plane mirror module and the projection screen in the laser projector, or further comprising at least one plane The mirror module is disposed between the convex mirror and the projection screen, so that the laser beam generated by the laser projector can be reflected by the convex mirror or the planar mirror module after being rotated by the plane mirror module. Then, it is projected on the projection screen to expand the scanning angle of the laser beam, so that the height and width of the projected image are effectively increased when the distance between the projection screen and the projection projection is constant. [Embodiment] <Embodiment 1> Referring to Fig. 2', a laser projection secret sound map of an embodiment of the present invention is shown. The laser projection system 200 includes a projection screen 2〇1 and a laser projector 2〇1. The projection projection g 2023⁄4 is used to project the image to the county 201 according to the single-face or dynamic picture. The laser projector module 2H), the laser signal modulation module 22〇, the combined light and 23〇, the Tianyi mirror control module 25G and a signal conversion module 260. In addition, the radiation optical module 270 includes a laser signal modulation module 220 and a light combining module 23A for convenience. The illuminating layer; the ^^^ light layer, the luminescent layer has "or multiple types of 'n", n is the number of luminescent substances. The illuminating 201033723 〆 contains any light that is exposed to a certain wavelength range, and A substance that can be excited to generate light of another wavelength range, including, but not limited to, a fluorescent material, a phosphorescent substance, a laser dye, or a laser crystal, etc. It may be excited by a light source of various wavelengths, λΐ3, λ2δ, ..., λη8, and each of them is excited by a different wavelength, represented by λΐΕ, λ2Ε, ..., ληΕ, for a single Ray. Each position of the beam projected on the projection screen can simultaneously excite the wavelength of all the excited light. The cross section of a single laser beam needs to cover a considerable number of all kinds of luminescent material particles. The distance between the particles parallel to the plane of the projection screen should be much smaller than the cross-sectional diameter of the laser beam. Here, λΐ8, λ2δ.....ληδ and λ1Ε, one ©λ2Ε..... Not The representative is a single value, but can be a certain range of distribution. If the excitation efficiency of the luminescent layer is pursued and the optical power of the excitation laser light passing through the luminescent layer is reduced, the luminescent layer should absorb most of the energy of the excited laser light. If the luminescent layer is to be transparent, the scattering and absorption of visible light by the luminescent layer should be reduced. One of the necessary factors should be such that the luminescent material has a particle diameter smaller than the shortest wavelength of visible light (about 360 nm). The longitudinal direction of the luminescent layer (longitudinal The cut surface may include and is not limited to the structure of Fig. 2A, Fig. 2B or Fig. 2C. As shown in Fig. 2A, Fig. 2B and Fig. 2C, the luminescent material is represented by a circle, a triple φ angle, and a square, but the invention It is not limited to three luminescent materials. In Figure 2A, a substrate 231 includes, without limitation, xn, STN, PC (polyester resin, p〇iycarb〇nateresin), c〇c (olefin copolymer, cyclo-〇). Lefln copolymers), pET (polyethylene terephthalate, polyethylene terephthalate), epoxy (epoxy resin) and other transparent plastic materials or glass, containing several luminescent substances. In the substrate, when various luminescent materials are dispersed in a uniform manner at all positions which may be irradiated by the excitation light, the light beam of the wavelength of the excitation light can be easily set, and the optical power is represented by L1S, lss, ..., LnS, P, E ' 2E.....PnE represents the luminescence energy per unit area of the desired excited light. In FIG. 2B, the three substrates 231, 232, 233 include, but are not limited to, TN, 201033723 STN, PC, COC, PET, epoxy and other transparent plastic materials, each containing a luminescent substance. When each of the luminescent materials is dispersed in a uniform manner in all the positions of the respective substrates which may be irradiated by the excitation light, the optical power of the beam of the excitation light wavelength can be easily set to generate the desired excited light. Luminous energy per unit area. In this FIG. 2B, each of the substrates 23, 232, and 233 includes only one layer of luminescent material, which is not limited thereto. In Fig. 2C, a substrate 235 is used to carry microparticles 236, 237 and 238, each containing a plurality of luminescent materials. The microparticles 236, 237 and 238 are each loaded with different luminescent materials by different substrates. The microparticles 236, 237 and 238 are spread over the substrate 235 in a uniform manner at all locations that may be illuminated by the excitation light. • In order for a single laser beam Ls to be projected onto the projection screen 201 at each position to simultaneously excite all of the wavelengths of the excited light, the cross section of a single laser beam needs to cover a significant number of all types of luminescent material particles. Thus, the microparticles 236, 237 and 238 are parallel to the cross-section of the substrate 235, and the transverse distance between the micro-particles parallel to the plane of the projection screen should be much smaller than the cross-sectional diameter of the laser beam. The structure of Fig. 2C is easier to adjust the distribution density of various microparticles at different locations on the substrate than in Figs. 2A and 2B. When the beam of the same light energy is scanned at different positions on the projection screen, the luminescent layer is excited to generate different combinations of excited light energy, and is particularly suitable for the static image display system shown in FIG. Figure 5 Architecture 盥 Work • The principle is detailed as follows. The production method of Fig. 2C includes, but is not limited to, the following: each of the luminescent materials is first dissolved in a separate solution, and the solution includes and is not limited to Ep〇xy (epoxy resin). The respective solutions containing the respective luminescent materials are each formed on the substrate 235 by forming microparticles including, and not limited to, ink jet, steaming, etc., and finally the substrate 235 containing various microparticles is cured. The signal conversion module 260 receives the image signals & of a single picture or a dynamic picture and converts them into a signal SL for controlling the laser light source module 210 and a signal SM for rotating the mirror module 240. The signal conversion module 260 is responsible for coordinating the synchronization of the optical signal of the laser signal modulation module 220 with the rotating plane mirror module 240. The laser light source module 210 comprises one or more sets of laser light sources, each of which can transmit a wave length of 201033723, a ratio of ...., corresponding to and fall into the excitation light wavelength range of various luminescent substances in the luminescent layer, λ丨The light beams of s, λ2δ, ..., ληδ, expressed by L丨s, L2S, ..., LnS, respectively, emit various light-emitting substances in the light-emitting layer to generate light of λ ΐΕ, λ 2 Ε λη Ε wavelength. In order to make the optical power of the λ1Ε, λ2Ε, ..., ληΕ wavelengths generated by the points on the screen 201 can be controlled by the optical power of L1S, L2S, ..., LnS, the single excitation light should be avoided. Or equal to two or more wavelengths of the excited light. In selecting the laser wavelength and the luminescent substance in the luminescent layer, it is necessary to reduce the overlap with the range of the distribution, wherein ljjSn and λ·ιΕ#λ) Ε 'and reduce the λβ irradiation to the luminescent substance in any of the luminescent layers to produce any unequal λίΕ The wavelength of the excited light energy. ❹ > In addition, the power of the laser light due to the wavelength λι is limited by the manufacturing process of the laser of the wavelength, and the right to increase the luminous energy per unit area of a certain wavelength ' includes the following two methods: The m kinds of luminescent substances in the luminescent layer can be excited by light of different wavelength ranges, and the light of the human city, ..., XmmS ', and generate the same wavelength 'excited light. And in the laser light source module 21〇, m laser light sources are arranged, wherein each length corresponds to an excitation wavelength range of each luminescent substance, wherein the bite is 2. Therefore, the luminous energy per unit area of the wavelength generated by the projection positions of the respective light beams on the optical layer is the sum of the excited light generated by the 111 laser light sources for the m luminescent materials. One [the excitation wavelength distribution range of the luminescent material is generally larger than the φ wavelength distribution range of the excitation laser source. Therefore, it is possible to select a wide range of excitation light wavelength λίδ and to generate a luminescent material having a wavelength of λ Ε. And a laser light source is disposed in the laser light source module 21A, and the wavelengths thereof are all in the range of the excitation wavelength of the luminescent material, wherein m22. Therefore, the luminous energy per unit area of the wavelength generated by the projection positions of the respective light beams on the light-emitting layer is the sum of the excitation light generated by the m2 laser light sources for the luminescent material. The light combining module 230 includes, but is not limited to, a plurality of filters (wavelength or prism), and the laser beams l1s, l2S.....LnS are aggregated to the same path and in the same direction. Generating a general modulated laser beam 1^. The overall modulated laser beam is incident on the rotating plane mirror module 24〇 and reflected by the rotating plane mirror module 24〇 to form an overall modulated scanning laser beam Ls for projection to projection Curtain 2〇1. S/52 201033723 The rotating mirror module 240 includes and is not limited to two orthogonal (〇rth〇g〇nal) one-dimensional polygon mirrors (PolygonMirror) modules, two orthogonal one-dimensional microelectromechanics (MEMS) The mirror surface, or a two-dimensional microelectromechanical device (mem may be rotated by one angle in a first plane, and may also be rotated by an angle φ in a first plane that is not flattened with the first plane.

The rotating mirror control module 250 drives the rotation of the rotating mirror module 24 and receives the converter module 26. The signal is converted into a controllable plane, and the group 240 rotates the angle of the signal. The rotation angle of the rotating plane mirror module 24 can be changed with time by the control of the plane mirror control module 250. With the rotation plane, the rotation angle of the module 240 changes, and the overall modulation scanning laser beam Ls scans all the positions on the projection screen 201 to generate the excited light one by one. The rotating mirror module =0 can be rotated periodically or non-periodically. The overall modulated scanning laser beam "scans on the screen 201 after scanning and includes and is not limited to gate scanning ( ^canning), Lissajous Sc ing or vector scanning (v_r banning). The laser light of the wavelengths ^^, ..., ^ in the modulated scanning laser beam Ls respectively excites η 6 , . , . , 匕 in the light-emitting layer of the projection screen 2〇1 to generate a wavelength of ^, ^, ..., buy (10) the eccentricity signal modulation module 220 is used to generate the image signal corresponding to each laser light source according to the image signal Si provided by the signal conversion module 26 早, the early-picture or the dynamic surface. The size of 'L, 12, ..., ' is used to adjust the optical power of each wavelength of the laser, Lls, l2S, ..., LnS. The higher the power of the excitation light, the more the excitation light is scanned through the projection screen. The longer a certain position and the higher the density of the luminescent material, the higher the position of the projected projection screen is, the higher the intensity of the excited light is. The various wavelengths at a certain position on the projection screen 2G1 are illuminated by the unit area of the light, and The corresponding excitation light power is multiplied by the time of scanning through the 〇 position The value depends on the density of the individual luminescent substances, and is not fixed in a certain proportional relationship by D丨, 込, .

When Dr. 呔古ΪΪ makes the unit area of the first excited wavelength of a certain position on the projection screen into a PiE, when the overall modulated scanning laser beam Ls is scanned to the position, it will correspond to the miscellaneous Excitation wavelength of the laser beam The illumination of the Lis is adjusted by the period 1 201033723 or the time τ of scanning through a position on the projection screen to enable it to excite the luminous energy per unit area produced by the luminescent material at the position in the projection screen. Exciting the i-th luminescent substance at the position (X, y) in the projection screen to be excited by the beam Lis to generate pyE(x, y) per unit area luminescence energy can be expressed as:

PiE(x,y) = Pis(x,y) * T(x,y) * c,(^is(x,y) » Dj(x,y)) where '(x,y) is the position The space coordinate, pis(x,y) is the optical power of the beam Lis scanned at position (x,y), As(x,y)=Pis(x,y) * L〇,pis(x,y) is The light beam Lis scans the optical power emitted by the laser light source module at the position (, y), and L 〇 represents the light beam Lis passing through the combined light core group, the rotating plane mirror module, and the laser light source module 210 and the projection screen. The optical power loss parameters of all optical components between 201 are generally independent of L〇 and p. τ(Χ,Υ) is the time when the overall modulated scanning laser beam Ls scans through the position (x, y), Di(x) , y) is the density of the i-th luminescent substance at the position (x, y), Q(Pis(x, y), Di(x, y)) is the position (^y), the ith luminescent substance will emit light The conversion of the wavelength to the optical power conversion efficiency of the wavelength of the excited light λίΕ ' Ci(Pi, (x, y), Di(x, y)) is affected by Pis(x, y) and Di(x, y). In the case where the Q of the i-th luminescent substance (the s(xy), Di(xy)) is not affected by Pis(x, y), Q can be simplified to QWs(x, y), Di(x, y )) = ^(Di(x'y)). In piE(x,y) = pis(x,y) * T(x,y) * Ci(Pis(x, force, ground, (9), T(x, y) can be based on the rotating plane mirror module 24〇 The rotation mode is calculated, l〇 and ci (Pis(x, y), Dj(x, y)) can be measured, so we can change the pis (x, y through the laser modulation module 220) In order to achieve the desired PiE (x, y). , , , ' Because of the rotation of some rotating plane mirrors, group 240, the scanning of laser Ls at projection 2〇1 is not equal speed. Therefore, the scanning is projected The position on the screen 2〇1, x, y) is not true. The density of the illumination (4) at each position on the projection screen is equal.

Di(=,y)= Di, if you want to make any position on the projection screen reach the preset ^ unit area, this time is 1; when you are old, you need to scan the laser beam over position (x, y) according to the overall modulation. T(x,y) to adjust the value of Pis(x,y) instead of =

PisU, y) = Pis. q The heart value is the laser beam scanning speed of the edge area of the laser scanning side such as Raster Scanning and Lissajous Scanning. The scanning speed of the laser beam is in the 昼 surface: the position of the laser is 悛, so the time of the laser passing through a certain position in the edge area is / 10.-52 '工4 丫心201033723 The time in a certain location in the area is long. If the density of the i-th illuminating material at each position on the projection screen is equal, if the light energy f' per unit area of the wavelength of the same excited light λίδ is sought, the wavelength of the scanning to the edge region needs to be reduced to 5^. Laser power. The basic principles of thinking and the calculation methods are as follows. The present invention is not limited to the following examples, and the basic thinking principles and calculation methods are the same as the following examples. When the time t=0, the rotation angle θ(9) of the two-dimensional rotating mirror is obtained as follows: θ(ί)= θ〇*8ίη(2π/Τθ* t); φ(ί)= φ〇*8ίη(2π/Τφ * t); where θ 〇 and φ 〇 are respectively the maximum rotation angle of the two-dimensional rotating mirror to rotate the laser beam along the χ axis and the 丫 axis, and τ θ and 'each are their rotation periods. To simplify the calculation, the projection screen is a plane, perpendicular to the laser beam at θ = 〇, 屮 = 在 at the point of (X, y) = (0, 0), then x = D * tan ( 0(t)) and y=D*tan(e(1)), where D is the shortest distance between the two-dimensional rotating mirror and the projection screen. Using the above relationship, the scan speed Vx(X) = dx/dt on the x-axis and the scan speed (10) on the y-axis can be obtained. The scanning speed at the (x, y) point is v(X, y) Kvx2(x) + Vy2(y). In order to make the luminous energy per unit area consistent on the projection screen, pis(x, y) should be proportional to v(x, y)/Ci(Pis(x, y), Di). In the case where the i-th luminescent substance iCiO^sky), Di(x, y)) is not affected by Pis(x, y), PiS(X, y) should be set proportional to V(x, y) = ( Vx2(x) + Vy2(y))W. If the rotation speed of the two-dimensional mirror is such that the time required for the entire modulated scanning laser beam Ls to scan through each position of the projection screen is smaller than the image capturing exposure time of the observer, then each of the laser beam scanning is excited by each position. The light spot will be recognized by the inspector and formed into a face. The observer's image capture exposure time is the human eye vision pause time (about 1/16 second) for the human eye and the exposure time for each face for the camera or camera. Although the one-dimensional mirror continuously rotates for more than the observer's image capture exposure time, several pupil planes can be formed. If the two-dimensional mirror rotates at a speed sufficient for each image to be updated less than the observer's image capture exposure time. , then these several pictures will be recognized as continuous dynamic pictures for the spectators. In addition, when the mitigation process time (RelaxingProcess I! '52 201033723 rime) of one luminescent substance is greater than the update time of each picture, the observer will observe the excited light remaining in the previous picture to form an afterimage. Therefore, a projection system that wants to form a continuous dynamic picture should be selected to mitigate luminescent substances having a short process time, such as a fluorescent substance, a laser dye, a laser crystal, and the like. 'Parameter laser, one application of the shadow system 200 is a full color laser projection imaging system. Let's take a single-primary color alpha-bit (2<χ layer scale) full color laser imaging system. The laser beams Lrs, Lgs, and Lbs* with wavelengths of xRS, xGS, and λΒ5 can excite the luminescent materials Fr, Fg, and Fb in the projection of the projection screen, so that the maximum unit area of optical power is P, PGEM, The red, green, and blue lights of p_ are represented by λΚΕ, λ〇Ε, and λΒΕ, respectively. Then the relative proportions of P_, Pgem, and p_ should be consistent with the ratio of the white balance of the image. The color to be displayed at a certain position of the projection screen corresponds to red, green, and blue, respectively, when the number is L], nk, and gradation. 'If you don’t consider the human eye’s perception of the smaller visible light of the god of light, 'Ying Lei will bundle the lrs, LGS, LBS to scan the light passing through the position. PRL, PGL, PBL make the light-emitting layers of the projection screen produce red, green and blue integrated light power, (η〇_1 )/(2Μ)ρ_,(nB_lv V *"Pbem 0 The book pseudo-consideration of the smaller visible light of the light god has a higher perception, and the introduction of the D positive factor (GammaCorrectionFactor) γ, the laser beam should be adjusted to scan through The light function of the position ♦ H ~ makes the light intensity of the red, green and blue unit area of the light layer of the curtain of the curtain be ^^1)/(2^1)] y?Km , [(nG-l) /(2a-l)]^pGEM . ]1/γ

1 βεμ. J. To achieve the same red, green, and blue color for each position on the projection screen, the same brightness (lightness, color, maximum unit area photolysis ρ_, p circle, PBEM) No, change with =, different. Fine, laser beam lrs, lgs, lbs maximum hair 2 12 52 substances Ϊ乂 ί, then ί carefully examine the various positions on the curtain of the various details of the illumination and the scanning speed of the laser beam to adjust. The method has been described above. Here, the following simple examples are used to further illustrate the control of the laser light power ρ team, ^^ 201033723. The various luminescent materials in the positions on the screen of the brook and the shirt are evenly distributed, and the eight ray Projection imaging system uses Raster Scanning (Ussajotis Scanning) laser scanning method, and ignores red, green and blue three: The optical power conversion efficiency of objects is cR, cG, cB According to the influence of the optical power, the maximum luminous power PRLM(x'y), PGLM(x,y), Pblm(x,y) of each laser light source module scanned to the position (X,y) of the projection screen should be It is proportional to the velocity V(x,y) of the beam scanned to this position (xy)', ie: 'PRLM(X,y)=PRLM(〇,〇)*V(x,y)/v(〇,〇) ; PGLM(x,y)=PGLM(〇,〇)*V(x,y)/v(0,〇); ❹ PBLM(x,y)=PBLM(〇,〇) *v(x,y) /v(〇,〇). Because V(0,0)匕V(X,y), PRLj^x'yKPj^^O 'O), pGLM(x,y)s PgLM(〇,〇) ' PBLM(X,y)$PBLM(〇,〇). In order to make the full-color laser projection system have the brightest image 'we In consideration of the mutual ratio of Prem, PGEM, and PBEM white balance, consider the manufacturing process of the laser source and its life cycle to select the largest possible PRLM (0,0), PGLM(0,0), pBLM(o). , o) value. If the human eye is not sensitive to the visible light with low optical power, the optical power of the laser beam LRS, LGS, and LBS scanned at the (x, y) position should be adjusted: PRL(x, y )= (nR-l)/(2a-l)* PRLM(x,y)= (nR-l)/(2a-l)* _ PRLM(〇,〇)*v(x,y)/v( 0,0); P〇L(x,y )= (nc-1 )/(2a-1 )*PGLM(x,y) -(nG-l )/(2a-l)PGLM(0,0) *v(x,y)/v(0,0); (nB~iy(2a-l)*PBLM(x»y)~ (nB~l)/(2a-l)* PbLm(〇7〇) *v(x,yVV(0,0>. If the human eye is more sensitive to the visible light with less optical power, and the gamma correction factor γ is introduced, the laser beam Lrs should be adjusted, Lgs, Lbs scan the optical power passing through the (x, y) position: iJRL.(x,y)- [(nR-1 )/(2α-1)] ι/γ*ΡβίΜ(χ,Υ)=[(ηκ -1 )/(2α-1)]ι/ γ* PRLM(0,0)*v(x,y)/v(0,0); PGL(x,yH(nG-l)/ (2α-1) ]1/Y*PGLM(X,y) =[(nG-l)/ (2α-1) ]1/γ* 201033723 PGLM(〇,〇)*v(x,y)/v(0,〇); PBL(x,y)=[(nB -l)/ (2α-1) ], /Y*PBLM(x,y)=[(nB-l)/ (2α-1) ]1^* PBLM(〇〇) *v(x,y)/ v(0,0). 'If the rotational speed of the two-dimensional mirror causes the total modulated laser beam Lm to scan through the projection screen for all the positions where the image spot is likely to be generated, the time is shorter than the human eye visual persistence time, and then the laser beam is scanned through various positions. The various spots formed will be recognized by the human eye as a picture. If the one-dimensional mirror is rotated at a speed sufficient to cause the update time of each face to be less than the human eye pause time, the projection system 200 can display a visible continuous dynamic face. In order to avoid the residual image, you need to choose the mitigation process time (Relaxing Process)

Time) is less than the update time of each picture, ie ι/p seconds, which is the luminescent material of the dynamic facet imaging system in Hz. In addition, in order to increase the image exemption, w kinds of wide-spectrum luminescent substances 'where w^l can also be added to the luminescent layer of the projection screen. Wide-spectrum luminescent substances can be excited to produce wavelengths, expressed as XlWE, hv/E, ..., XW\VE. XiWE covers more than one primary light wavelength, for example covering green and blue wavelengths ' or covering red, green and blue Three-color wavelength, here 匕匕w. And a plurality of laser light sources are disposed in the laser light source module 210, and the wavelengths thereof are represented by Xiws, hws, ..., Xwws, respectively, in the excitation wavelength range of the W luminescent materials. x ® In order to further pursue the white balance of the images produced by the w broad-spectrum luminescent materials, it is necessary to design the mutual ratio of the optical powers of the W kinds of lasers so that the broadband wavelengths are excited, λ)\νΕ, hwE, ..., The sum of the light energy of XWWE 's meets the requirements of white balance in color. In addition, in order to pursue the expansion of the color gamut of the image (Color Gamut), in the projection screen illuminating layer can also add g kinds of extended gamut luminescent substances, wherein it expands the gamut luminescent substance can be excited to generate wavelength 'XlGE, λ2 ( 3Ε,...,XgGE, and on the CIE Chromaticity Diagram, 'this λ}Χ}Ε, λ2 (3£,..., XgGE and λκ£, λ〇Ε, λΒΕ (g+3) The area formed by the wavelengths is larger than the area formed by only λΚΕ, λαΕ, λΒΕ, and g laser light sources are added to the laser light source module 210, and the wavelengths of the 14 52 201033723 are respectively located in the extended color gamut. In the excitation wavelength range of the substance, the general image signal s丨 contains the image information of the three primary colors of red, green and blue. The signal conversion module 260 should convert the s丨 into the red, green and blue primary colors plus λ丨GE, Λ2 (3Ε,... ', ZgGE image information, and used to control the red, green, and blue primary colors of the excitation laser beam lrs, lgs, lbs, and g to stimulate the optical power of the extended color gamut luminescent material, Really present the position where the laser beam on the projection screen is scanned In order to reduce the number of laser light sources and the number of types of gamut luminescent substances required, the choice of λ Ι (3Ε, λΜΕ, ..., xgGE) should be measured by the laser light source and the process of expanding the color gamut luminescent material. The g achieves a relatively large color area. Since the excitation light is still reflected or scattered by the projection screen, the wavelength distribution of the reflected or scattered pupil will be the same as the wavelength distribution of the excitation light. If the excitation light is better for the human eye. Sensitivity, the observer receives the excitation light and the excited light at the same time, thus producing a mixture of colors, which detracts from the color contrast of the image. To avoid the above situation, the better way is to use the wavelength of invisible light. Including and not limited to 808 nm, 850 faces, 980 nm, and l〇64 nm, or selecting a wavelength that is less sensitive to human eyes, including, but not limited to, 405 nm, 780 nm, etc., the laser is used as a laser light source module 21〇 Laser source. If it is still inevitable to use visible light as the excitation source, select the excitation source that is similar to the color of the excited light. It is not limited to a wavelength of about 4〇5nm (blue Color), φ 450 nm (blue) laser light excites the luminescent layer to produce a blue (wavelength of about 450 nm) image. 'Laser light with 780 nm (red) and 640 nm (red) excites the luminescent layer to produce red (wavelength about 640 nm). Image. Because the excitation light source and the excited light have similar colors, the color mixing phenomenon caused by the reflection or scattering of the excitation light by the projection screen can be reduced. Another simplified application example of the laser projection system 200 is to use a 4 〇 5 nm semiconductor ray. The light is a laser light source 210, and a two-dimensional rotating microelectromechanical mirror or a two-dimensional rotating microelectromechanical mirror is combined to form a rotating plane mirror module 240. The projection screen 201 includes a light emitting layer. The layer contains a luminescent material that is excited by a wavelength of 4 〇 5 nm to produce red, blue or green visible light. The projection screen 201 is also transparent. If the projection screen is attached to the windshield in front of the driver's seat of the vehicle, the principle of not affecting the driving sight is adopted. The laser projector 2〇2 is mounted in the traffic 201033723 tool and the laser beam is projected onto the projection screen 201. The signal conversion module 26 receives the video signals & from, and not limited to, image source components such as a computer, a mobile phone, a GPS, a night vision camera, a visible light camera, etc., in a wired or wireless manner, and displays various types on the projection screen 201. Information, including and not limited to speed, mileage, fuel consumption, maps, warnings, directions, mobile phone numbers, etc. <Embodiment 2> McCormick 3 is a schematic view of a laser projection system 3 (8) according to Embodiment 2 of the present invention. The laser projection system 300 includes a projection screen 301 and a laser projector 302. The laser projection image is used to capture the image signal & according to a single picture or a dynamic picture to image y to the projection screen 301. The laser projector 302 includes a laser light source module 31, a laser signal § cycle module 320, a light module 330, a rotating plane mirror module 340, a rotating plane mirror control module 350, and a signal conversion Module 36〇. In addition, the laser optical module 370 is defined to include a laser source module 31, a laser signal modulation module 320 and a light combining module 330 for facilitating the discussion below. The structure of the laser signal modulation module 32〇, the combined light module 330, the red-turn plane mirror module 340, the rotating plane mirror control module 350, and the signal conversion module 360 that are not included in the camera 302 And the working principle is similar to the laser signal modulation module 220, the light combining module 230, the rotating plane mirror module 24〇, the rotating plane mirror control module 250, and the signal conversion module 260 provided by the laser projector M2, respectively. Therefore, it will not be repeated. The main difference between the second embodiment and the foregoing embodiment 1 is that the laser light source module 310 of the laser projection is: the first type of laser light source module 311 and the second type. The laser light source module 312 and the projection screen 301 comprise a light-emitting layer 331 and a scattering layer 332, that is, the first type of laser light source module 311 and the light-emitting layer 331 of the second embodiment are equivalent to the laser of the first embodiment. The light source module 21 is connected to the light-emitting layer of the projection screen 2〇1, and the second embodiment is further provided with a second type of laser light source module 312 and a scattering layer 332. Therefore, in the second embodiment or the following other embodiments, the same working principle as that of the embodiment 1 or any of the preceding embodiments can be cited to achieve the same or similar functions as the embodiment or the uranium. The laser light source module 3 jj and the light-emitting layer 331 are the same as the corresponding laser light source modules '21〇 and 201033723 in the first embodiment. Referring to the first embodiment, the present invention (4) includes a module 31G. a laser light source module 311 and a second 1' Γ + ΐ light source module 312. The first-class Leixian source module 311 includes -group or multi-electrode ΐΐίί, L can emit wavelengths ^, ', ..., W corresponding to and fall into the ί optical layer = excitation light wavelength range of various luminescent substances, The light beams of λ ΐ δ, ^, ..., ληδ, j lls, L2is, ..., Lnis indicate that the respective luminescent substances in the luminescent layer are excited to generate light of λ 丨Ε, λ ΖΕ, ..., λη Ε wavelength. The first type of laser light source module 312 comprises one or more sets of laser light sources, each of which can emit light beams of wavelengths λ12ί, λ22ί, . . . , λη2ί, which are represented by Li2s, L92S, ..., Ln2s^10. As shown in FIG. 3A, one of the basic structures of the projection screen 301 is provided with a light-emitting layer 331 and a scattering layer 332. The light-emitting layer 331 faces the light beam Ls projected by the laser projector 302 before the scattering layer 332, and Di is the mass of the light-emitting layer 331 toward the incident light source. The scattering layer 332 can destroy the single directivity of the incident laser light. A multi-scattered light of the same wavelength as the incident laser light is generated. The luminescent layer 331 comprises one or several luminescent substances which can be excited by different light sources, represented by λ Ι δ, λ25..... λβ, and each of which is excited by a different wavelength, λ, Ε λ2Ε,...,ληΕ denotes the light. The light-emitting layer 331 and the basic structure, basic operation principle and basic characteristics of the light-emitting substance are the same as those of the light-emitting layer of the projection screen 201 in the laser projection system 200 of the first embodiment, and therefore will not be described again. The luminescent layer 331 has a very low absorption and scattering of the second type of laser light emitted by the second type of laser source module 312. Therefore, most of the laser light of the second type of wavelength can pass through the light-emitting layer 331 and enter the scattering layer 332. In order to pursue the excitation efficiency of the light-emitting layer 331, the light-emitting layer 331 should absorb the laser light of the first type of wavelength emitted by most of the first-type laser light source modules 311. Therefore, the scattering layer 332 is mainly used to scatter the laser light of the second type of wavelength and the excited light excited by the first type of wavelength laser light in the light-emitting layer 331. 17· 52 201033723 The interface between the medium and the light-emitting layer 331 may be subjected to anti-reflection treatment, including, but not limited to, inserting an anti-reflection layer to reduce the wavelength of the two types of modulated laser beams, and the light emitted by the light-emitting layer 331 is The reflection of this interface. Therefore, the proportion of the first type of modulated laser beam entering the light-emitting layer 331 can be increased, and the proportion of the second-type modulated laser beam entering the color-scattering layer 332 can be increased, and the excited light generated by the light-emitting layer 331 can be increased into the D. The ratio of | can also increase the proportion of light scattered by the scattering layer. Therefore, when the observer is located on the side of the projection screen, the brightness of the image of the scattered light of the excited light fish can be observed. The interface between the luminescent layer 331 and the scattering layer 332 can be anti-reflectively processed for the wavelength of the second type of modulated laser beam to increase the scattering of the second type of modulated laser beam into the scattering layer f2 and by the scattering layer 332. The proportion of light entering the medium q. Thus, when the observation, at the D, the side of the projection, the higher the brightness of the image of the scattered light can be observed. The interface between the far illuminating layer 331 and the scattering layer 332 can be highly reflectively processed by the wavelength of the first type of modulated laser beam to reflect the residual energy of the first type of modulated laser light passing through the luminescent layer 331 to return it to the illuminating The layer 331 is used to increase the intensity of the light to be excited by the viewer's position, and the higher view of the excited light can be observed. +Single 320 is used to generate 5 '^1..... and 112, 122.....U corresponding to each laser according to the image signal ES1 provided by the signal conversion module or dynamically. , > 4· ....... Φ Capture '111, 121, ..., ln丨 and 1丨2, Ϊ22,..., In2, the laser beam of the same wavelength, Lm, L21s, .. , LnIS and l12S, l for optical power modulation

22S to separate Lr

The -n2S laser is as described above. 'The higher the fineness', the longer the type of lightning scanning passes through a position on the projection screen, the more f can cause the miscellaneous projection of the projected projection screen: various positions on the screen The value of the time at which the density of the luminescent material per unit area of the wavelength of the excited light is at a certain proportional relationship, and the second time that the higher the power of the optical power is removed, the more the time passes through the S position on the projection screen. The scattering efficiency of the second type of laser scanning = I can make the position of the 201033723 projection projection screen scatter the higher the scattered power of the optical power. The radiance energy per unit area of the scattered light of various wavelengths at a position on the projection screen is multiplied by the corresponding second-type optical power by the value of the time of scanning through the position, and is fixed to a certain proportional relationship according to the scattering efficiency of the scattering layer. . As the two types of optical wavelengths of the laser beam Ls are modulated, that is, the laser light of different wavelengths emitted by the first type of laser light source module 311 and the second type of laser light source module 312, The scanned 'image' on the screen 301 can thus consist of the scattered laser light of the second type of wavelength and the excited light excited by the first type of wavelength laser light in the luminescent layer. One application example of the laser projection system 300 is a full color laser projection projection system. Take a full-color laser projection projection system with a single primary color of α-bit (2a layer scale) as an example. In order to pursue the expansion of the color gamut of the image, the following two methods can be used simultaneously. In the light-emitting layer M1 of the projection screen, g-type gamut illuminating substances can also be added, and in the first type of laser light source module. In 311, g laser light sources are added, and the wavelengths thereof are respectively located in the excitation wavelength range of the g-type extended color gamut luminescent materials, and the function thereof can be referred to the embodiment 丨; second, in the second type of laser light source module In the 312, the laser port is configured with h laser light sources, which respectively generate λ1ΗΕ, λ2ΗΕ, ..., the wavelength of the human ,, , and hd; and on the CIE chromaticity coordinate map, the λΐΗΕ, λ2ΗΕ, ..., λ[ ιΗΕ和;^, ❹ GE, XBE^(h+3) wavelengths form an area larger than the area formed by only human spit, person card, and person. Because the general image signal & contains the red, green, and blue primary colors, the image conversion module 360 should convert the Si into ^GE ^, the entanglement, into the dirty, ..., xhHE image Information, and used to control the laser light power of the two beams Lrs, Lgs, Lbs and the first type of laser light source module 311 and the h = brother class II laser source module 312, to present the projection screen The color of the position where the beam is scanned. In order to reduce the number of laser light sources and the number of types of gamut luminescent substances required, in the selection of λ 1 , ., 2GE, human gGE and λ!ΗΕ, λ2ΗΕ, ..., XhHE, the lightning, source and expansion should be measured. The production process of the gamut luminescent material pursues a relatively large color area with a minimum (g+h). 19-52 201033723 In this full-color laser projection imaging system, except for X1WS, X2WS, ..., \wWS, which must be excited by the laser light generated by the first type of laser source module, the projection screen is produced. λ ΚΕ, λ < 3 Ε, λ Β and λ κ ϊΕ, λ 2 〇Ε, ..., XgGE and λ 丨ΗΕ, λ 2 ΗΕ, ·.., a total of (3 + g + h) wavelengths 'here g ' this 0, the light energy , can be excited by the laser light generated by the first type of laser light source module, or by the laser light scattering generated by the second type of laser light source module. The luminescent layer must also include one or more luminescent materials, each of which can be excited by a laser source of the first type of laser source module to produce light of some of the (3+g+h) wavelengths. . The second type of laser light source module contains light of other wavelengths of this (3+g+h) wavelength. In order to avoid color mixing, the wavelength of invisible light should be used, including but not limited to Lu 808lim, 850nm, 980 nm, and 1064 nm, or wavelengths with poor sensitivity to human eyes, including but not limited to 405 nm, 780 nm, etc. The laser is used as the laser source of the first laser light source group 311. If it is still inevitable to use visible light; ^ When the light source is used, select the excitation light source that is close to the color of the excited light. Including, but not limited to, excitation of a light-emitting layer with a wavelength of about 405 nm (blue-violet) and 450 nm (blue) to produce a blue (wavelength of about 450 nm) image, and excitation of light with 780 nm (red) and 640 nm (red) laser light. The layer produces an image of red (wavelength about 640 nm). Since the excitation light source and the illuminating light have similar colors, the color mixing caused by the reflection or scattering of the excitation light by the projection screen can be reduced. / φ Technology limited to green semiconductor lasers is not yet mature' General use of Second

The Harmonic Generation method converts laser light of i〇64nm wavelength into green light (532iim) laser light. Therefore, the high-intensity variable-width wide-power green-light laser module not only has a large volume, but also has high production cost and complicated control. In the full-color laser projection projection system of the laser projection system, one of the application examples is to use blue and red laser as the laser light source of the first type of laser light source module 311, and use 405 nm or The 980 nm laser excites one of the luminescent materials in the luminescent layer, so that a full-color dynamic image can be formed on the projection screen. <Embodiment 3> Referring to FIG. 4' is a laser projection system 4 of the embodiment 3 of the present invention. The 201033723 trace projection system includes - a projection screen 4G1 and a laser projection 11 402. Lei uses ί according to the single-face or dynamic picture image signal 8丨, to I like n screen 401. The laser projector 402 includes a laser light source module, a laser signal modulation module 420, a rotating plane mirror module, a rotary plane mirror control module 450, and a signal conversion module 46. In addition, the definition of the optical module 470 including the laser source module 41 and the laser signal modulation is facilitated below. The structure and working principle of the rotating plane mirror module 440, the rotating plane mirror control module 45〇, and the Anm number conversion module 460 are respectively combined with the rotating plane surface group, 240, the rotating plane mirror control module 25〇, and the signal conversion module. Group 26〇

Let me repeat. The projection screen 401 can be divided into a plurality of pixels 431 corresponding to the screen resolution to be displayed, and in the image quality of SVGA, it is 8〇〇χ6〇〇=48〇, one 苎, the screen The structure of the adjacent element of the 401 may include and does not limit the structure shown in FIGS. 4A and 4B. In Fig. 4A, a single halogen 431 contains red, blue, and green subpkels, each represented by 432, 433, and 434. In Fig. 4B, a single 'pixel 441 contains red, blue, and green sub-tendin, each of which is represented by 442, 443, and 444. ^ The area of each sub-pixel is not necessarily equal. The arrangement of the secondary elements between the adjacent elements can be as shown in Fig. 4A or as different as the 4B. Each sub-pixel distribution; ^ other luminescent materials. The two luminescent materials include, but are not limited to, fluorescent substances, and can be excited by the wavelength range, and the light beams are excited to generate red, blue, and green colors, and the wavelengths are light of human pull and λ. The basic structure, basic working principle and basic characteristics of the two luminescent materials are the same as those of the luminescent material in the laser projection system 200 of the first embodiment of the present invention, and therefore will not be described again. - a laser light source module 410 is included in the laser light source module 410, which emits a light beam having a wavelength, and falling into the wavelength range of the excitation light of the three luminescent materials in the luminescent layer.

Ll said. In order to have precise control over the energy of the excited light generated by each human genus, the minimum ' of the secondary '素 should be greater than the laser reading u, and 2 j not 201033723 A certain distance to avoid exposure of the laser beam to more than two kinds of halogens at the same time. For a long time, the scanning path of the laser beam is aligned with the last arrangement of the projection screen 401 to prevent the laser light from simultaneously irradiating two or more sub-pixels.

The laser signal modulation module 420 is configured to generate the driving power &amp; h of the laser light source according to the image signal Si of the single surface or the dynamic surface provided by the signal conversion module 46A. The light beam L1 is modulated by the optical power PL. When Ls scans to a certain pixel of the pixel, the driving current provided by the laser signal modulation module 420 can cause the optical power PL to excite the secondary pixel to generate the optical power of the color. Through the different combinations of excitation light energy of ^^blue and green three-color pixels, the element can exhibit different brightness, hue and chroma; as for the different brightness, hue and chroma, the control method can be used. Refer to Example 1. In addition, in order to increase the brightness of the image, white can also be added to the projection screen. The luminescent material contained in the white sputum can be a laser beam. The excitation and the cover cover the wide spectrum wavelengths of the red, green and the two-color wavelengths. The light-emitting mode structure of the white sub-study includes and is not limited to FIG. 4C and FIG. 4D. In FIG. 4C, 451 is a single two-character, which includes four sub-pixels of red, blue, green and white, each of which is 452, 453, 4ϋ55 Table ′ 461 is a single element in Figure 4D, which contains four sub-pixels of red, blue, green and white, respectively represented by 462, 463, 464, 465. The area of each sub-salm is not necessarily equal. The order of the sub-pixels between adjacent pixels can be the same, as shown in Figure 4D, or different, as shown in Figure 4C. In addition, in order to expand the color gamut of the image, it is possible to increase the circumstance of the expanded color gamut in the county, and the fiscal plan. The luminescent substance contained in the 敝 color sub-picture can be generated by the wavelength, which is represented by -, ..., λ_. And on the at-chromaticity coordinate map, the area formed by this λ coffee, entrance view, ..., into the Qing and into the Wang, λαΕ, λΒΕ (4)) = long is larger than the area of only λιΙΕ, λ (3Ε, λΒΕ卿成. The sub-pixels of gamut and the four sub-pixels of red, blue, green and white can be arranged into the same pixel. The structure of the illuminating mode is included and is not limited to Figure 4. One is to avoid mixing of colors. The wavelength of the wire can be limited to the wavelength of the coffee, 850, _nm, and 1064nm, or the wavelength that is different from 201033723, including and not limited to 405nm, and 78〇11111, etc. The laser light source of the light source module 410. Embodiment 4 &gt; Please refer to FIG. 5 for explaining the laser projection system 5 of the fourth embodiment of the present invention. This laser projection system 5〇〇 A projection screen 5〇1 and a laser projector M)2 are included. The laser projector 502 projects the laser beam onto the projection screen 5〇1. The laser projector M)2 comprises a laser light source module 51, a laser light source control module 52, a rotating plane mirror module 540, a rotating plane mirror control module 55 and a signal coordination module.

In addition, a laser optical module 57A is defined and includes a laser source module 51A and a laser signal modulation module 520' for ease of discussion below. The structure and working principle of the rotating plane mirror module 540 and the rotating plane mirror control module 550 are similar to those of the rotating plane mirror module 24 and the rotating plane mirror control module 250, and therefore will not be described again. The projection screen 501 has a light-emitting layer, and the light-emitting layer comprises one or several kinds of light-emitting substances, and F!, F2, ..., Fn can be excited by the laser light source emitted by the laser light source module 5 And each is stimulated by a variety of different wavelengths, to ..., eight η Ε 不, the light. The luminescent layer and the basic structure, basic working principle and basic characteristics of the luminescent material therein are the same as those of the luminescent material in the laser projection system 2 本 of the embodiment of the present invention, and therefore will not be described again. If a certain position of the projection screen is to generate light of a wavelength λ 丨 E of a higher unit area of light energy, the luminescent substance Fi having a higher distribution density is made at the position. 1

The laser source mode set 510 includes a set of laser sources that emit wavelengths that excite all of the luminescent material, the beams of which are indicated by ll. X Because the light energy per unit area of the wavelength λίΕ is emitted at a certain position of the screen, it is determined by the light energy per unit area of the wavelength of the excitation light and the density of the luminescent material. When the same unit area light energy is supplied at each position on the projection screen, the paste image is determined by the density of the luminescent substance at the position. Making a hairpin 201033723 In order to make the light (4) each position on the Fi Machinery County have the same unit area light energy, you need to make the laser beam sweep the amount of silk. Therefore, the lightning should be synchronized with the rotation angle of the mirror. The force of the sheep/, one, the quasi-condensation, if the beam 1 ^ in the scanning process, the same optical work, the source and the two-dimensional rotating mirror (4) Degree of the same system. ^^ :==== Set the density distribution: <Example 5 &gt; Figure. = Secret_ Illustrated, β ... ^, 05 slave ~ power 601 and a projection light source 602. The projection well HFF j has a wavelength λ1 Ε, λ2 Ε..... ληΕ. By determining the illuminating ginseng, it is determined that the distribution of the image is not _, and the lamp can be selected as the light source. , green, blue, white, or extended color gamma Ι ί ί ί μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ The present embodiment is described separately for the various structural types of the projection screen of the present invention. Fig. 7 is a schematic view of the first projection screen of the present invention. The projection screen 24〇: 201033723 700 includes an excited light absorbing layer 720 and a light emitting layer 730. The light-emitting layer 730 includes, but is not limited to, the light-emitting layer structure shown in FIGS. 2A, 2B, 2C, 4A, 4B, 4C, 4D, and 4E. The principle of operation has been described in detail above, and the excitation light absorbing layer 720 absorbs the excited light emitted from the light-emitting layer 730 to reduce the excited light entering the medium Di side. Therefore, the observer or the light receiver can only see the image displayed on the side of the 〇2 side or detect the light emitted by the luminescent layer, and the image displayed on the D1 side cannot be seen or the light emitted by the luminescent layer is detected.

The excited light absorbing layer 720 can also be designed to have a very high absorption of visible light, so that the projection screen is completely opaque black. This projection screen is suitable for use as a rear projection display system to prevent human eyes from observing the circuitry inside the display system. ▲ In addition, if the excitation light absorbing layer 720 has a low absorption and scattering of the excitation wavelength of the projection light East Ls, the projection light beam Lsi can be incident on the projection screen from the Di side. - the projection beam Lsi of the projection screen 7 or the excitation light of one or more wavelengths is incident from the side of the f i or the side of the Da to respectively excite the various luminescent substances in the luminescent layer to cause the projection screen to generate an image. The interface between the medium D and the surface of the excited light absorbing layer 72, and the interface between the light absorbing layer 72 〇 and the luminescent layer 730 can be anti-reflective treatment, including, but not limited to, inserting a layer of anti-reflective layer to reduce the technical beam. The reflection of Lss in the two interfaces increases the luminous efficacy of the projection screen. Μ The interface between the optical layer 730 and the medium, and the surface of the excited light absorbing layer 720 and the illuminating g ^ , ί can be anti-reflective, including, but not limited to, inserting an anti-reflective layer, and the light of the optical spectrum is in the two interfaces. reflection. Thus, the light of the spectrum of the excitation light of the same genus in the ring of the medium D2 ί is rarely reflected back: the second traverses the luminescent layer 730 and is absorbed by the excitation light absorbing layer 720. This will also be absorbed by the light source spectrum of the genus of the same genus. Therefore, the display screen 700 can be made to be unaffected by the ambient backlights LA1 and La2. A specific embodiment is to select the visible light to be visible light containing red, green, blue, white, or an enlarged color gamut. ^ 201033723 Referring again to FIG. 7B', a schematic diagram of a second projection screen 701 of the present invention is shown. The projection screen 701 includes an activated light absorbing layer 720A, a light emitting layer 730 and an excitation light absorbing layer 740. The excitation light absorbing layer 740 can absorb light in the projection light beam Ls for exciting the wavelength of the light-emitting layer. The excitation light absorbing layer 740 has less absorption and scattering of the excited light, so that the excited light generated by the luminescent layer 730 can be transmitted to the 〇2 side without being obstructed, and is received by the observer. The excitation light absorbing layer 740, which is increased by the projection light beam LS1 from the side only to the projection screen 701, can be ensured that the optical power of the projection light beam LS1 does not pass through the light-emitting layer 730 and enters the D2 side. Received by the observer. ❹ In addition, the ambient light La may also contain wavelengths that can illuminate the luminescent layer 730 to emit light. The excitation light absorbing layer 740 ensures that the ambient backlight 1A2 does not cause any image of the luminescent layer 730, thereby completely eliminating the image displayed by the projection screen from being affected by the ambient background light LA2. One embodiment of Figure 7B is the selection of visible light that is red, green, blue, white, or a color that expands the color gamut. Referring again to Figure 7C', a third projection screen 7〇2 of the present invention is shown. The projection screen 702 includes an excited light and scattered light absorbing layer 720B, a light emitting layer 730 and a scattering layer 750. The scattering layer 750 can destroy the single directivity of the incident laser light to produce a multi-sense scattered light of the same wavelength as the incident laser light. The excited light and scattered light absorbing layer 720B can absorb the light of the scattered spectrum in addition to the light of the spectrum of the excited light. Compared with FIG. 7A, FIG. 7C adds a scattering layer 750 to the excited light absorbing layer 720 and the luminescent layer in addition to the excited light absorbing layer 720 by replacing the light absorbing layer 72 〇 图 of FIG. Between 730. Although it is thus limited to project the projected beam Ls2 from the 〇2 至 to the projection screen, the projection screen 702 is adapted for use in the projection system 300. One embodiment of Figure 7C is the selection of visible light and scattered light as visible light comprising a color of the rural, green, blue, white, or enlarged color gamut. Referring again to Figure 71), it is a schematic view of a fourth projection screen 7〇3 of the present invention. The projection 201033723 includes a light emitting layer 730 and an excitation light reflecting layer 760. Since the light energy of the laser beam LS1 may not be absorbed by the light-emitting layer 73, the excitation light reflecting layer 760 reflects the residual energy of the projected light beam LS1 through the light-emitting layer 730, returns it to the light-emitting layer 730, and re-energizes the light-emitting substance therein. Thereby, the projection screen 7〇ί luminous efficiency can be improved and the projection beam Lsi can be prevented from entering the D2 side through the projection screen and received by the observer. The excitation light reflecting layer 760 has an extremely low absorption and scattering of the excited light, so that the excited light can be prevented from entering the D2 side. ”

The interface between the luminescent layer 730 and the excitation light reflecting layer 760 is processed, including, but not limited to, selecting an optical index of a similar luminescent layer and an excitation light reflecting layer, or inserting an anti-reflective layer for the excited light to reduce the luminescent layer being The reflection of the excited light at this interface. The luminescent layer and the medium D, the interface, and the excitation light reflecting layer 76 〇 and the medium identifiable interface may be anti-reflective treatment, including, but not limited to, inserting an anti-reflective layer to reduce the illuminating layer being excited by the light in the two interfaces. reflection. Therefore, the light-emitting layer 73 is excited, and the light is not limited to the inside of the projection screen 703. Therefore, the observer or the optical connector can see the light that is emitted by the display image or the measured luminescent layer regardless of either side of the thief projection screen 7〇3. The illuminating layer and the laser reflecting layer can also be designed to make the absorption and scattering of visible light extremely low. ϋ The human eye sees the two layers as a coffee, and the projection screen, that is, one of the embodiments of FIG. 7D, selects the excited light as Visible light containing red, green, blue, white, or magnified gamut colors. Referring again to @7Ε, it is a schematic diagram of a fifth projection screen of the present invention. The projection screen 704 includes a light-emitting layer 73A, an excitation light reflecting layer 76 and a scattering layer. Figure 7 is an increase-excitation-light-reflecting layer 76 between the light-emitting layer 73 and the layer 750 to increase the light-emitting layer 73, thereby making the projection screen 7〇4 suitable for use in the projection system 300. Figure 7 A specific embodiment is to select the visible light and the scattered light as visible light including red, green, blue, white, or an enlarged color gamut. -7F ' is a schematic diagram of the sixth projection screen 705 of the present invention. Projection ί 3 - an excitation light absorbing layer 72G' - an illuminating layer 73G, an excitation light reflecting layer 760 and a scattering layer 750. 201033723 An excitation light reflecting layer 760 is added between the luminescent layer 730 and the scattering layer 750 as compared with FIG. 7C'. Thus, the luminous efficiency of the luminescent layer 730 can be increased, and the optical power of the projection beam LS| can be prevented from entering the d2 side for reception by the observer. One embodiment of Fig. 7F is to select the excited light and the scattered light to be included. Red, green, blue, white, or the color of the extended color gamut Referring again to FIG. 7G, which is a schematic diagram of a seventh projection screen 7〇6 of the present invention, the projection screen 706 includes an excitation light absorbing layer 72〇, a scattering layer 75〇, an excitation light reflecting layer 760 and a The light-emitting layer 730. Compared with FIG. 7C and FIG. 7G, an excitation light-reflecting layer 76 is interposed between the light-emitting layer 73A and the scattering layer 750, so that the light-emitting efficiency of the light-emitting layer 73 can be increased.

One embodiment of Figure 7G is the selection of visible light and scattered light as visible light comprising red, green, blue, white, or an enlarged color gamut. Referring again to Figure 7H, there is shown a schematic view of an eighth projection screen 707 of the present invention. The projection screen 707 includes an excited light partially reflective layer 77 and a light emitting layer 73A. The portion to be excited is the reflective layer 770, so that the incident light incident on which side is penetrated by a ratio (for example, 20%) and partially reflected (for example, 8%), and has a relatively high excitation light. Penetration ratio. The projecting light beam Lsi incident on the right side of the D! side or the E&gt;2 side or [they can excite the light-emitting layer 730 to generate excited light. This excited light can be received by the observer &amp; a received image. Since the excited light can also partially penetrate the partial reflection layer 77 to the Liao side, the observer 〇2 can also receive the projected image formed by the excitation light. 1 ΐϊΐΐ The same image that was observed by the observer 〇 2, in addition to the projected image, is also the image of the object in the Di received by the viewer (2 (including the viewer m reflected through the projection screen) For the object received by the observer a: the observer 0, the observed image, in addition to the projected image, also contains the image of the object in the D2 received by the projection observer (including the silk 〇 2) and the shirt减 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 0. Re-scattering or reflecting to the projection screen light, II 201033723 The intensity of the optical spectrum of the excited light is much smaller than the background light Lm 'contains the light source directly from the D2 side projection screen and the other objects in the medium D2 (including the observer 〇 2 When re-scattering or reflecting to the light of the projection screen, the optical power of the spectrum of the excited light is observed by the observer 〇2, which is reflected by the projection screen in the spectrum of the excited light and received by the observer 〇2. The optical power of the medium object can be much larger than that received by the observer 〇2 The optical power of the object. Under this condition, the observer can only clearly observe the image and projected image of the object received by the projection screen in the spectrum of the excited light, which is reflected by the observer, but cannot be clear. Observing the image of the object in Di received by the observer 穿越2 through the projection screen. For the observer 〇1, the observer 〇1 can pass through the projection screen in the observed spectrum of the excited light. For the observer, 观察ι ❹ receives the image of the object in 〇 2, and projects the image. In this way, not only the projected image can be received by the observer (^ and the observer 〇2, but also protects the observer. Conversely, if the background light LA1 contains the light source that is directly projected by the D! side and the other object that is irradiated onto the medium A (including the observer's light that is scattered or reflected to the projection screen, the spectrum of the excited light spectrum The power is much larger than the background light La2, including the light source from the direct projection screen of the 32 side and the other objects (including the observer 〇2) that are irradiated onto the medium D2 to scatter or reflect the light to the projection screen, so that the projected image can be an observer. 〇1 and view The 〇2 is received at the same time, and the privacy of the observer 〇2 can be protected. ^ The specific detail of Fig. 7H is an example of selecting visible light to be visible light containing red, green, blue, white, or magnified color gamut. The projection screen 7〇7 is suitable for use in a projection advertising system including, but not limited to, a vehicle or a building. Referring again to Fig. 71, it is a schematic diagram of a ninth projection screen 708 of the present invention. The projection screen 708 includes - the excited light and the The scattered light partially reflects the layer 780, a light-emitting layer 730, and a scattering layer 750. The partially-excited light and the partially-reflected light-reflecting layer 780 can partially reflect the light of the scattered spectrum. In contrast to FIG. 7H, FIG. 71 adds a scattering layer 750 between the light-emitting layers 730 and D2 in addition to being replaced by the excitation light partial reflection layer 770 into the excited light and the scattered light partial reflection layer 780. Although it is thus limited to project the light beam LS2 from the 〇2 side to the projection screen, the projection screen 708 is suitable for use in the projection system 300. 29^52 201033723 Since the spectrum of the scattered light is equal to the spectrum of the laser beam projected by the scattering layer 750, the light energy of the scattering spectrum in the projected beam LS1 will also be partially the reflected light and the partially reflected layer 780 of the scattered light. reflection. For this reason, in determining the optical power of the projected beam Lsi to scatter the spectrum of the light to form a certain unit area of scattered light energy when the projection screen is formed, the factor of reflection of the portion of the laser light is required to be considered, and the scattering of the projection beam LS1 is increased. The laser power of the spectrum. One embodiment of Fig. 71 is to select the visible light and the scattered light as visible light comprising red, green, blue, white, or an enlarged color gamut. Referring again to FIG. 7J, it is a schematic diagram of a tenth projection screen 7〇9 of the present invention. The projection screen 709 comprises an excited light and a partially reflected layer 78, a scattering layer 75

And a light emitting layer 730. Compared to FIG. 71, the scattering layer 750 of FIG. 7J is placed between the light-emitting layers 730 and D2, and the modulated laser beam Lsz is incident from the D2 side. Therefore, the modulated laser beam Ls2 is not reflected by the excited light and the partially reflected light layer 78 〇 before being incident on the scattering layer 750, and the laser light power of the scattering spectrum of the projected beam Lsi in the first diagram can be avoided. The efficiency of incidence to the scattering layer is reduced. One of the specific embodiments of green, 7J is to select the visible light and the scattered light as visible light containing red, blue, white, or an enlarged color gamut. Referring again to FIG. 7K, it is a schematic diagram of a projection screen 71 of the present invention. The projection screen 710 includes a light collecting layer 79, a portion of the light shielding layer 79, a light emitting layer 73, and a scattering layer 750. A portion of the light shielding layer 79 includes a plurality of light blocking members 792 and a plurality of openings 793. The concentrating layer W includes a plurality of concentrating mirrors 794. The projection screen is suitable for applications in the System 300. Referring to Fig. 7KA', which is a light-shielding layer 79, an example is shown, and the light-shielding element 792 is a black portion in which a white circle is formed. The area of a pixel 795 on the projection screen is 793. Corresponding to the center of the group of openings of the same pixel and should be aligned. The halogen 795 shown in ® 7ΚΑ contains five open and the 参 Γΐ r nr 70= is limited. The light-shielding element 792 covers most of the light-shielding layer 790. The opening σ 793 can be incident to the position, * (, the reading surface thereof can be included and is not limited to a circle or a square. The shading element 30/52 201033723 792 completely reflects the light incident to the shading element 792 by reflection or absorption. The light-shielding element 792 faces the surface of the light-emitting layer side and can completely absorb the excited light and the scattered light. To enable a single laser light to project a portion of the light on each of the projected projection screens to enhance the laser For the efficiency of beam projection, the maximum spacing of the opening 793 should be smaller than the cross-sectional diameter of the laser beam. ❿ Figure 7KB is an example of the concentrating layer 791. The concentrating mirror 794 is a white circle. The concentrating mirror 794 covers the concentrating layer. The majority of the area is 791 to collect most of the incident beam. The center of each of the concentrating mirrors 794 is aligned with the center of the respective opening 793. The concentrating mirror 794 can focus the light projected thereon and thus pass through the opening 793. It is not blocked by the light-shielding element 792. The material of the light-concentrating layer 791 has a small absorption and scattering of the light of the wavelength of the excitation light and the scattered light. Therefore, the excitation light and the dispersion of the projection beam 1^1 can be made. The optical power of the optical wavelength passes through the opening 793 without any interference. The concentrating layer 791 and the light shielding layer 790 can be integrated into one body. In this case, the opening 793 is filled with the material of the concentrating layer 791. The interface between the concentrating skin 791 and the light shielding layer 790 in the open area is reduced, and the efficiency of the light beam incident on the illuminating and scattering layer 740 is increased. Field 3 The light that passes through the opening 793 enters the luminescent layer 73, which belongs to the wavelength of light. The light will cause the luminescent layer to generate the excited light. The illuminating light is the light that does not belong to the wavelength of the excitation light, and enters the scatter (four) er, and ^, because the scattered light is multi-party, it corresponds to a single opening 793. Excited = the light on the surface of the projection screen &amp; side can form a light spot with a much larger area than the opening. The curvature of the light mirror, the thickness of the light shielding layer 79G, and the thickness of the light emitting layer: the distribution of the scattered Z The light spot group corresponding to each pixel can be made common ί === prime. In this way, the observer 〇 2 will observe that each of the light spots is in addition, and the light shielding element 792 can face the light emitting layer side. The surface can be excited by eight light and filament. For example, H Weihong 射There will be a considerable part of the light-shielding element 792. _^皮f$境光驰丝状僧,钱额录财^ = 201033723 One embodiment of Figure 7K is to select the excited light and the scattered light to contain red, Green, blue, white, or visible light that expands the color gamut.

Referring again to FIG. 7L, it is a schematic diagram of a twelfth projection screen 711 of the present invention. The projection screen 711 includes a developing layer 796 and one or both sides of the developing layer is an ultraviolet resistant layer 797. The imaging layer 796 is projected by the projected beam to form an image comprising all of the projection screens described herein. The anti-ultraviolet layer 797 can prevent the light of the ultraviolet range wavelength from entering the developing layer 796 by reflection or absorption, and has less absorption and scattering of the excitation light and the scattered light wavelength of the image forming layer 796. The light of the projected beam that is both the excitation light and the wavelength of the scattered light enters the imaging layer 796 without hindrance. Since the imaging layer 796 may include the light emitting layer 730, the scattering layer 750, the excited light absorbing layer 720, the 激发 excitation light absorbing layer 740, the excited light and the scattered light absorbing layer 72, the excitation light reflecting layer 760, and the excited light. The partial reflection layer 770, the excitation light and the scattered light partial reflection layer 780, and various types of functional layers, and the various functional layers may have various chemical substances to achieve luminescence, scattering, and selection. Functionality of wavelength absorption, selective wavelength reflection, etc. The optical properties of these chemicals and the substrate itself of the various functional layers may generally deteriorate under ultraviolet light, and the life of the imaging layer 796 is shortened. Placing the anti-ultraviolet layer 797 on one side of the imaging layer 796 can block the light energy of the ultraviolet spectrum in the incident ambient light from being outside the imaging layer by 7%, and achieve the 7% characteristic and extension of the stable imaging layer. The purpose of the service life &lt;Embodiment 7&gt; Referring to Fig. 8', it is a first embodiment of the present invention that expands the display screen without a laser projection. The laser projection system 800 includes a laser projector 8A and a CAM 801. The laser projector 8A includes a laser optical module 8ι, a rotating mirror module 820, and a convex mirror 83A. 4 is the same as 820 240 and will not be repeated here. The technical screen 801 includes a generally projectable surface, that is, generally casts eight 32:52 and is not limited to the aforementioned projection screen 1G projection screen 2 of the present invention (Π, projection screen 30), cast ^201033723 screen 5 〇 投影 projection screen 700 Projection screen 7 投影 projection screen 702 projection screen 703, projection screen 704, projection screen 705, projection screen 706, projection screen 707, projection screen 708, projection screen 709, projection screen 71 〇, projection screen 71 laser optical mode The group 810 projects a laser beam onto the rotating mirror module 82, and the structure thereof may include, but is not limited to, the laser optical module 110 of the present invention, the laser optical module 270 of FIG. 2, and FIG. The laser optical module 370, the laser optical module 470 of FIG. 4, and the laser optical module 570 of FIG. 5. The modulated laser beam Lm emitted by the laser optical module 810 is reflected by the rotating plane mirror module 820. To the convex mirror 83. For example, when the plane mirror module 82 causes the laser beam to rotate at an angle of 0 urx in the xz plane and the laser beam has a rotation angle of 0 ury on the y_z plane, the laser The light beam LM is reflected by the rotating mirror module 820 to the end point NUR1 on the convex mirror 830, Then, it is reflected by the convex mirror 83〇π to the upper right corner end nUR2 of the projection screen 801. Similarly, when the plane mirror module 820 makes the rotation angle of the laser beam on the X axis, θ, a And when the rotation angles of the laser beams on the y-axis are respectively θυΐΎ, 0bry, 0bly, the laser beams LM are respectively reflected by the rotating plane mirror module 82〇 to the end points NULI, NBRi on the convex mirror 33〇. The NBLI is then respectively reflected by the convex mirror 83〇 to the leftmost upper end point nUL2 of the projection screen 30, the lower right corner end point Nbr2, and the lower left corner end point Nb1j2. The reflection through the convex mirror 830 can be The laser beam scanning angle is enlarged, and the height and width of the projected image are increased without changing the distance D between the screen 801 and the laser projector 80. Referring to Fig. 8 and Fig. 8A, Fig. 8A A cross-sectional view of the laser projection system 800 of the present invention parallel to the χ-ζ plane. The rotary plane mirror module 820 can rotate the laser beam at an angle of θ on the Xz plane. Since the angle of incidence is equal to the angle of reflection 0RL 'and the incident angle 0IR is equal to the reflection angle 0RR, this mine After the scanning angle of the beam is reflected by the convex mirror 830, it is increased from 0 to (Θ+ΔΘ), where Δθ is the angle between the normal line passing through the NL1 point on the curved surface NL1 NR1 of the convex mirror 830 and the normal passing through the nr1 point. Therefore, in the case where the distance 1) between the projection screen 801 and the laser projector 8 is not changed, the projected image width W can be made large. Referring to Fig. 8B, a perspective view of the horizontal projection of the laser projection system 800 of the present invention parallel to the x_y plane is shown in 201033723. After being reflected by the convex mirror 830, the angle of scanning the laser beam can be increased from φ to (φ+Δφ) in the yZ plane, where Δφ is the normal of the surface of the convex mirror 830 passing through the 1^| point and passing through the nbi point. The angle between the normals. Therefore, in the case where the distance D between the projection screen 801 and the laser projector 80 does not change, the projected image height can be made larger. Positioning the convex mirror 830 near the center line of the plane to be projected increases the curvature of the surface of the convex mirror 830 and makes the curvature of the surface symmetrical to the center of the mirror to reduce the volume of the convex mirror 830, which is advantageous for reducing the convex surface. The manufacturing cost of the mirror 830. Please refer to Fig. 8C' for the relationship between the convex scanning mirror and the expanded scanning angle when the convex mirror is placed at different positions on the χ_ζ (or y-z) plane. A, B, and C are three different positions where the convex ❹ mirror 830 can be placed, and D, E, and F correspond to the leftmost point (or uppermost point), the center point, and the rightmost point (or the lowermost point) of the image to be projected. point). ZADF, ZBEF, ZCTD, ZDAC, ZEBC, ZFCA倶 are right angles. When the laser beam is incident on the convex mirror 830 at point A, the maximum angle *eA scanned on this plane is the AE beam path. When the laser beam incident on the convex mirror 830' at point B is scanned at a maximum angle of %, the center beam path of the pupil is BE. When the laser beam is incident on the convex mirror 83A at point c, the maximum angle scanned in this plane is 0C, and the center beam path of the pupil plane is CE. When the incident convex mirror 830 has a scanning angle, the laser beam is incident on the convex mirrors 830 at points a, b, and C. The maximum angles scanned on the plane are Θα, Θβ, θ ( :, the center of the beam path of the picture is eight £, ugly, € five. From the figure, we can see that 0 8 = ^ (: = tan, H / L), eB = 2 * tan_1 (H / 2 / L) IhanlHO/Lptar^Ol/L), so Θβ&gt;Θα=Θ(:. After being reflected by the convex mirror 830 located at points A, B, and C, the added scanning angles are each δθα=( θα - θ0), Δθβ=( θβ - θ〇), αθ«:=( ec - θ〇), and ΔΘΒ&gt;ΔΘΑ=Δθί: because the increased scanning angle corresponds to the maximum angle of the surface normal of the convex mirror 830 The convex mirror 830 of the defect has a large surface curvature change corresponding to the convex mirror 83 having a small volume. Further, as shown in Fig. 8C, zDAE&gt;ZEAF 'ZDBE=ZEBF ' z:DCE&lt;ZECF, so that it is located at B The surface curvature change of the convex mirror 830 of the point is symmetrical to the reflection line BE in the reflection, and the curvature of the surface of the convex mirror 830 located at the point a and the point c is changed. And 34-&gt;2 201033723 is asymmetrical to its respective reflection central axes AE and CE. Therefore, placing the convex mirror 830 near the center line of the projected image can increase the curvature of the convex surface of the convex mirror 83' Having the curvature of the surface symmetrical to the center of the mirror surface to reduce the volume of the convex mirror 83 is advantageous to reduce the manufacturing cost of the convex mirror 830. <Embodiment 8> Referring to Figure 9 A schematic diagram of a laser projection system 900 that can display a facet can be enlarged. Since the plane mirror can change the direction of travel of the laser beam without changing the scanning angle of the laser beam, the convex mirror 83 and the plane mirror are used. i can also greatly reduce the distance between the laser projector and the projection screen, and achieve the purpose of expanding the display surface. The laser projection system 900 with the enlarged display screen of Fig. 9 includes a laser projector 9 and a The projection screen 9〇1. The laser projector 9〇 includes a laser optical module 910, a rotating plane mirror module 920, a convex mirror 930 and a plane mirror module 940. The laser optical module 91〇, the rotation plane The structure and working principle of the mirror module 92 〇 and the convex mirror 930 are similar to those of the laser optical module 81 旋转, the rotating plane mirror module 820 and the convex mirror 830, and therefore will not be described again. The plane mirror module 94 〇 convex mirror The modulated laser beam reflected by 930 is then reflected to the projection screen 9〇1.

In the case where the scanning angle of the laser beam is constant, the length of the rotating plane mirror module 92 〇 and the projection screen 9 〇 1 is the width and height of the projected image. It can be seen from FIG. 9 that although the plane mirror module 940 cannot increase the scanning angle of the laser beam, the angle of the wire can be turned, and the distance between the projection screen and the laser projector is constant. It can increase the longer the beam travel path between the rotating plane mirror module 92 and the projection, and increase the height of the projected image. ΐ ΐ 图 图 图 图 图 图 图 图 图 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明 说明The principle of expanding the scanning angle in the teeth and the system. However, the scope of the invention is limited. It is within the scope of the invention to design one or more convex or planar mirrors for any laser scanning projection system to increase the scanning angle. 35 '52 Gates are only used to exemplify the preferred embodiment. For the purposes of the present invention, only W </ RTI> is non-sexual. It will be appreciated by those skilled in the art that many changes, modifications, and equivalents may be made without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a prior art schematic diagram of one of the laser projection systems. 2 is a schematic view of a laser projection system of the present invention (FIG. 2A: 2C is a longitudinal schematic view of three different structures of the projection screen illumination layer of FIG. 2. FIG. 3 is a laser projection system 3 of the present invention. Figure 3A is a schematic diagram of one of the basic structures of the projection screen of Figure 3. Figure 4 is a schematic diagram of the laser projection system 400 (Embodiment 3) of the present invention. ® 4A-4B are respectively shown in Figure 4. A schematic diagram of a junction of a plurality of pixel spaces adjacent to a light-emitting layer of a projection screen. Figure 5 is a schematic view of a laser projection system (Embodiment 4) of the present invention. Figure 6 is a simplified laser projection system of the present invention. Figure 7A-7K is a schematic view showing the first to eleventh structural forms of the projection screen in the present invention (Embodiment 6). Figure 7KA is a light shielding layer (790) in Figure 7K. Fig. 7KB is a schematic diagram of a concentrating layer (791) in Fig. 7K. Fig. 7L is a schematic view showing a twelfth structural type of a projection screen in the embodiment of the present invention. Fig. 8 is an enlarged display of the present invention. Laser projection system 800 (Embodiment 7) φ Schematic FIG. 8A is a laser projection system in FIG. Figure 8 is a cross-sectional side view of the laser projection system in parallel with the x_y plane. Figure 8C is a perspective view of the laser projection system (8〇〇) of the present invention in Figure 8 (or y_z) The relationship between the convex mirror and the expanded scanning angle when the convex mirror is placed at different positions. Fig. 9 is a view showing the second enlarged display laser projection system 9 (Embodiment 8) of the present invention. Main element symbol description] laser projection system 200, 300, 400, 500, 600, 800, 900 projection screens 201, 301, 401, 501, 601, 701, 702, 703, 704, 705, 201033723 706, 707, 708, 709, 710, 7U, 8 (H, 901 laser projectors 202, 302, 402, 502, 602 laser light source modules 210, 310, 410, 410, 810, 910 laser signal modulation module 220 320, 420, 520 light combining module 230, 330, 430, 530 rotating plane mirror module 240, 340, 440, 540, 820, 920 rotating plane mirror control module 250, 350, 450, 550 signal conversion module 260, 360, 460, 560 laser optical module 270, 370, 470, 570 substrate 23 232, 233 φ substrate 235 microparticles 2 36, 237, 238 first type laser light source module 311 second type laser light source module 312 light emitting layer 331 scattering layer 332 pixels 431, 441 subpixels 432-434, 442-444, 452- 455, 462-465 projection screen 700 is excited by light absorbing layer 720, 720A ❹ luminescent layer 730 excitation light absorbing layer 740

Excited light and scattered light absorbing layer 720B Scattering layer 750 Excitation light reflecting layer 760 Excited light Partially reflective layer 770 Excited light and scattered light Partially reflective layer 780 Partial light shielding layer 790 Concentrating layer 791 Light blocking element 792 201033723 Opening 793 Condenser 794 昼 795 imaging layer 796 anti-ultraviolet layer 797 laser projector 80, 90 projection screen 801 convex mirror 830, 930 plane mirror module 940

Claims (1)

201033723 VII. Patent application scope: 1 type of laser projection system, including a projection screen and a laser projector. The image and the image are transmitted according to the image signal of the single-picture or dynamic surface. Cooperating with a transparent projection screen to produce an image, 3 first sub-projection, the screen 'comprising at least - the luminescent layer having at least one luminescent substance containing any excitation light emitted to a certain wavelength range can be excited to generate Another wavelength range of substances that are excited by light, and the transverse distance between the particles of each luminescent substance parallel to the plane of the projection screen is much smaller than the diameter of the laser beam; the laser projector 'includes- Yu Guang's team, _ laser signal modulation module, one a light combining module, a rotating plane mirror module, a rotating plane mirror control module and a signal conversion module; wherein the signal conversion module receives various image signals (S|) of a single side or dynamic picture and It is converted into a signal (heart) for controlling the laser light source module and a signal (SM) of the rotating plane mirror module, and is responsible for coordinating the synchronization of the optical signal of the laser signal modulation module with the rotating plane mirror module; The laser light source module comprises at least one set of laser light sources respectively corresponding to the emission wavelengths (4) and falling within the excitation light wavelength range of each luminescent substance in the luminescent layer (the laser beam is used as the excitation light to respectively illuminate the luminescent layer) The various luminescent materials respectively generate the excited light of the wavelength (λίΕ); wherein the combined light module converges the respective laser beams (Lis) to the same path, in the same direction, to generate an overall modulated laser The light beam (LM) is incident on the rotating plane mirror module, and is reflected by the rotating plane mirror module to form an overall modulated scanning laser beam (Ls) for projection to the projection screen. The rotating plane mirror module module is used for The first plane is rotated by an angle (Θ)' while rotating at an angle (φ) on a second plane that is not parallel to the first plane; the rotation plane mirror control module is used to drive the rotation of the rotating plane mirror module, and After receiving the signal (Sm) from the signal conversion module, it is converted into a signal that can control the rotation angle of the plane mirror module, so that the rotation angle of the rotary plane mirror module is 39^52 201033723, which is controlled by the control of the rotating plane mirror control module and changes with time. In order to scan the entire modulated scanning laser beam (Ls) one by one for all positions on the projection screen to generate the excited light. The laser signal modulation module is based on a single surface provided by the signal conversion module. Or the dynamic image signal (), the driving current α corresponding to each laser light source is generated to respectively adjust the optical power of the laser beam (Lis) of each wavelength. 2. The laser projection system of claim 1, wherein the luminescent material consists of one of a fluorescent material, a phosphorescent substance, a laser dye, or a laser crystal. 3. The laser projection system of claim 1, wherein the luminescent layer absorbs most of the energy of the excited laser light and reduces scattering of visible light. 4. The laser projection system of claim 3, wherein the luminescent material of the luminescent layer has a particle diameter smaller than a shortest wavelength of visible light (about 36 〇 nm). 5. The laser projection button according to the item of claimant No. 〉, the cap light-emitting layer utilizes a layer of substrate material containing a plurality of luminescent substances and dispersed in a uniform manner at a position which may be the excitation light. The unit of luminescence energy required to generate light. 6 The laser projection system according to Item 1, wherein the illuminating layer is ==== 细娜定, the desired ^7::===雷::=== distance _sverse di The laser projection system of claim 1, wherein the illuminating layer dissolves each luminescent material separately in each solution, and then each It is formed by forming fine particles by inkjet or vapor deposition and placing them on a substrate to cure the substrate. 10. The laser projection system of claim 5, 6 or 7, wherein the substrate substrate is selected from the group consisting of 1^81^1(:(polyester resin, 1&gt;0)拙resm), COC (olefin copolymer, CyCi〇_〇iefmc〇p〇iymers), pET (polyethylene terephthalate, polyethyleneterephthalate), epQxy (epoxy resin), glass U. The laser projection system of claim 1, wherein the optical power per unit area of the wavelengths λ1 Ε, λπ, ..., ληΕ generated at each point on the projection screen 1 can be different as optical power. L1S, L2S.....LnS is controlled, and a single excitation light should be generated to generate more than or equal to two or more wavelengths of the excited light. 丨2, as in the laser projection system of claim 11, wherein When selecting the wavelength of the light and the light-emitting substance in the light layer, it is necessary to reduce the range of the distribution between the wavelength and the wavelength, where 匕iJSn and λίΕ#λ"Έ, and reduce the λί8 irradiation to the luminescent substance in any of the luminescent layers. Any energy that is not equal to λ Ε wavelength of the excited light. 13. If the scope of patent application In the laser projection system of the item, wherein the illuminating layer is provided with m kinds, wherein π^2, the luminescent substances are respectively excited by the excitation light of different wavelength ranges λι^, λ2ιη8....z_s, and Generating the excited light of the same wavelength λίΕ, and arranging one laser light source in the laser light source module, the wavelengths respectively corresponding to the wavelength range of the excitation light of each luminescent material, so that the light beam projection positions on the luminescent layer The luminescence energy per unit area of the generated wavelength λίΕ is the sum of the excitation light generated by the m luminescent materials excited by the s laser light source. 14. For example, the laser projection system described in claim 1 of the patent scope, The illuminating layer is arranged to select a luminescent material having a wide wavelength distribution of excitation light and generating a wavelength of the excited light, and is disposed in the laser light source module, wherein the wavelength of the laser light source is located in the illuminating light source module. In the range of the excitation wavelength of the substance, the luminescence energy per unit area of the wavelength λ|Ε generated by the projection positions of the respective light beams on the luminescent layer is: the electro-optical material Bevin to the two laser light sources to excite the excited light. sum 15. The laser projection system according to claim 1, wherein the combination of the light module 201033723 is composed of a variety of filters (wavelength fllter) or a magnifying mirror (four) (four). The laser projection system of the item, wherein the overall adjustment, scanning laser beam (Ls) scanning form on the scanning projection screen comprises Raster Scanning, Lisaaj〇 Scanning Or Vector Scanning. 17. The laser projection system of claim 1, wherein when the illuminating energy per unit area of the i-th excited wavelength of a position on the projection screen is PiE, the overall modulation scan is performed. Shoot the beam. When scanning to the position, the optical power pis of the laser light corresponding to the excited wavelength is adjusted, or the time τ after scanning through a position on the projection screen is adjusted, so that the position in the projection screen can be excited. The luminescent material generates radiant energy per unit area of the PiE, wherein the illuminating energy per unit area of the PiE (x, y) generated by exciting the ith luminescent substance at the position (X, y) in the projection screen by the light beam Lis can be expressed as: PiE(x,y) = Pis(x,y) * T(x,y) * Ci(^iS(x,y) » Di(x,y)) _ '(x,y) is the position The space coordinates, pis(x,y), are the light power of the beam Lis scanned at position (x,y), Pis(x,y)= pis(x,y) * L〇' Pis(x,y) is the beam Lis scans the optical power emitted by the laser source module at position (X, y), L〇 represents the optical unit, the reflection of the rotating mirror module, and the laser source module and projection The optical power loss parameter generated by all optical components between the screens; &lt;X,y) is the time at which the scanning laser beam Ls scans the position (x, y), and Di(x, y) is the position (x, y) the ith illuminating substance Degree, Ci(PiS(x, y), is the i-th luminescent substance at position (x, y) converts the wavelength of the excitation light into the optical power conversion efficiency per unit area of the wavelength λίΕ of the excited light, Di(x, y )) is affected by 砰s(x,y) and Di(x,y). In the case where Q (pis(x, y), Di(x, y)) of the i-th luminescent substance is not affected by PiS(x, y), Ci can be simplified to Ci(Pis(x, y), D, y)) = QtD^y)); at piE(x,y)= pis(x,y) * 啦, y) * c is still s(x,y), in 'τ(χ〇/) It can be calculated according to the rotation mode of the rotating plane mirror module, and Ci(Pi,(x,y) ' Di(x,y)) can be measured to change the PisU,y through the laser modulation module. Get the PiE (x, y) you want. 8. The laser projection system as described in claim 7 of the patent application, wherein the density of the luminescent materials at each position on the projection screen 4:/52 201033723 is far from any position on the projection screen of Di (Di) x, y) = D 丨 'If you want to make 9, == clever to the laser projection system of the seventh, which, when the ing laser scan is set, 'the bit velocity in the edge of the screen is higher than the center of the screen. The position of the area is slow, so the time between the positions of the lasers is higher than the position of the central area, and the density of the third light (4) of each position is equal. ❿ The wavelength of the position to the edge area is ^ The laser power is measured as "square mouth = the rotation angle of the two-dimensional rotating mirror _ _ 0, then θ 〇 * 8 ί η (2π / Τ θ * t); Φ (ί) = φ 〇 * 5 ί η (2π / Τ φ * t); ft % and Φ ❶ respectively for the two-dimensional rotating mirror to make the laser beam along the χ axis and the axis, the maximum rotation angle, Τ θ# Τ (ρ is its rotation period; for simplifying the calculation, The projection screen is a plane, and the point at (x, y) = (〇, 〇) is perpendicular to the laser beam at ❹ (4), =0, then FC^tan^t)) y=D*ta_(t)), D is the shortest distance between the rotating mirror and the projection screen; using the above relationship, the scanning speed Vx(x)=dx/dt and the y-axis of the X-axis can be obtained. Scanning speed v &lt; y) / dt; scanning speed at (x, y) point is v (x, y) = (Vx2 (x) + vy (y)) 'for the luminous energy per unit area in the projection screen Both are consistent, so that Pis&lt;x,y) should be proportional to v(x,y)/Ci(Pis(x,y), D〇; in the i-th luminescent substance Q(Pis(x,y),DiOc 'y)) is not affected by z?is(x,y), and Pis(x,y) should be set proportional to v(x,y)=(vx2(8) + Vy'y»1/2. The laser projection system of claim 17, wherein the rotation speed of the two-dimensional reflex t-mirror causes the total modulated scanning laser beam Ls to scan through each position of the projection screen for less time than the observer's image. When the exposure time is intercepted, the various spotlights formed in 201033723 will be the laser projection system described in the Patent No. 2G item, wherein the mirror rotates continuously for longer than the observer's image interception exposure. Time: You can make several pictures. If the 2D mirror rotates at a speed Sufficient to make the exposure time of each face smaller than the observer's image to take the exposure time, then the several readers recognize that it is a continuous dynamic face. -Chongmaguan22, as in the second paragraph of the patent application scope The laser projection system described above, in which a projection system for forming a continuous cancerous image should be selected to mitigate luminescent substances having a short process time, such as a fluorescent substance, a laser dye, a laser crystal, and the like. 23. The laser projection system of claim 1, wherein the light-emitting layer of the projection screen is further capable of adding w kinds of broad-spectrum luminescent substances, wherein wgi, the broad-spectrum luminescent substance can be excited to generate wavelengths λιννΕ, λ2λνΕ , λνν, and λ·_ cover more than one primary light wavelength, where 匕w; and in the laser source module, configure W laser sources 'wavelength xiws, λ2^.....XwWS Each is located in the excitation wavelength range of the w luminescent substances. 24. The laser projection system of claim 1, wherein the illuminating layer of the projection screen is further capable of adding an enlarged gamut luminescent substance, wherein 扩大1; the enlarged gamut luminescent substance can be excited to generate a wavelength X1GE, λ2(3Ε,...,λ§(3Ε, and on the CIE Chromaticity Diagram, the λ丨GE, λ2〇Ε,..., XgGK and λρ£, λ〇Ε, λΒΕ The area formed by (g+3) wavelengths is larger than the area formed by only λβΕ, λ〇Ε, λΒΕ; and g laser light sources are added to the laser light source module, and the wavelengths thereof are respectively located in the enlarged In the excitation wavelength range of the gamut luminescent material, the laser projection system of claim 1, wherein the excitation light is a laser of a wavelength of invisible light as a laser of a laser source module. The laser projection system of claim 25, wherein the excitation light system comprises a laser having a wavelength of about 808 nm, 850 nm, 980 nm or 1064 nm as a laser of a laser light source module. Light source 27. The laser as described in claim 1 a shadow system, wherein the excitation light i4'52 201033723 uses a laser having a wavelength that is less sensitive to the human eye as a laser light source of the laser light source module. '' 28. The thunder as described in claim 27 In the projection system, the excitation light system comprises a laser of a wavelength of 405 nm or 780 nm as a laser source of the laser light source module. The laser projection system of claim i, wherein the excitation light system A laser with a wavelength of about 405 nm (blue-violet) or 450 nm (blue) is used as a laser source for the laser light module to excite the luminescent layer to produce a blue (wavelength of about 45 〇 nm) image, thereby reducing excitation. The color is mixed by the reflection or scattering of the projection screen. ❹ 3 (3) The laser projection system described in claim 1, wherein the excitation light 4 has a wavelength of about 780 nm (red) or 640 nm (red). The laser is used as a laser source, and the laser light source of the group is used to excite the luminescent layer to generate a red (wavelength about 040 nm) W image, thereby reducing the color mixing phenomenon caused by the reflection or scattering of the excitation light by the projection screen. 1 such as applying for a patent The laser projection system of the first aspect, wherein the excitation light system uses a 4〇5mn semiconductor laser as a laser light source of the laser light source module, and uses a two-dimensional rotating microelectromechanical mirror or The two-dimensional one-dimensional rotating microelectromechanical mirrors are combined to form a rotating plane mirror module, and the light-emitting layer of a projection screen includes a light-emitting substance that can be excited by a wavelength of 4〇5 nm to generate red, blue or green visible light. The laser projection system of claim 1, wherein the laser light source module further comprises a first type of laser light source module and a second type of laser light source module, The transparent projection screen comprises a light emitting layer and a scattering layer, and the light emitting layer faces the light projected by the laser projector before the scattering layer, wherein the first type of laser light source module comprises at least one set The laser light source may correspond to the respective emission wavelengths (\1L) and fall into the first-class wavelength of the excitation light wavelength range (6) of the various luminescent substances in the luminescent layer to separately illuminate various luminescent substances to make them different Generate wavelength (into the old) Excited light; wherein the second type of laser light source module comprises at least one set of laser light sources respectively emitting a laser beam of a second type wavelength of 201033723 length (^l); wherein the light emitting layer is paired with the second type The absorption and scattering of the laser light of the second type of wavelength emitted by the laser light source module is extremely low, so that most of the laser light of the second type of wavelength can pass through the light emitting layer to enter the scattering, and can absorb most of the first The laser light source module emits a first type of wavelength light; wherein the scattering layer is used to scatter laser light of a second type of wavelength and the excited light excited by the first type of wavelength laser light in the light emitting layer. 33. The laser projection system of claim 32, wherein the illuminating layer is provided with at least one anti-reflective layer on the interface of the scanning beam projected by the laser projector to reduce the first and second types. The wavelength of the laser light and the light emitted by the light-emitting layer are reflected by the interface, thereby increasing the ratio of the laser light of the first type of wavelength into the light-emitting layer, and increasing the proportion of the laser light of the second type into the color-scattering layer, The proportion of the excited light generated by the luminescent layer entering the outside by the interface, and increasing the proportion of the light scattered by the scattering layer from the interface to the outside, so that the observer located on the front side of the projection screen can be observed to be excited higher The brightness of the image of the light and the scattered light. 34. The laser projection system of claim 32, wherein the interface between the luminescent layer and the scattering layer is provided with at least one anti-reflective layer for the laser light of the second type of wavelengths to increase the wavelength of the second type. The ratio of the laser light entering the scattering layer and the light scattered by the scattering layer into the outside of the light-emitting layer allows the observer outside the light-emitting layer of the projection screen to observe the image brightness of the scattered light. The laser projection system of claim 32, wherein the interface between the light-emitting layer and the scattering layer is capable of providing at least one highly reflective layer for the first type of wavelength of the laser light to reflect the first type of wavelength The residual energy of the laser light passing through the luminescent layer is returned to the luminescent layer to increase the optical power of the excited light, so that the observer of the outside of the illuminating layer of the projection screen can observe a higher image brightness of the scattered light. 36. The laser projection system of claim 32, wherein the first type of laser light of the first type uses a laser having a wavelength of about 808 nm, 850 nm, 980 nm or 1 〇 64 nm as the first type of laser. The laser source of the light source module. 37. The laser projection system of claim 32, wherein the first type of laser light of the first type uses a laser having a wavelength of about 405 nm or 780 nm as a laser source of the first type of laser source module. . The laser projection system of claim 32, wherein the laser light of the first type of wavelength is a laser having a wavelength of about 405 nm (blue-violet) or 450 nm (blue). The laser light source of the first type of laser light source module is used to excite the luminescent layer to produce a blue (wavelength about 450 nm) image, thereby reducing the color mixing caused by the reflection or scattering of the excitation light by the projection screen. 39. The laser projection system as claimed in claim 32, wherein the higher the optical power, the second type of laser light power, and the second type of laser light is scanned over a position on the projection screen for a longer and higher scattering. Efficiency, the position of the projected projection screen can be scattered by the higher the optical power of the scattered light; the luminous energy per unit area of the scattered light of various wavelengths at a certain position on the projection screen is multiplied by the corresponding second type of laser light power. The value of the time of scanning through the position is fixed to a certain proportional relationship according to the scattering efficiency of the scattering layer. The laser projection system of claim 1, wherein the light-emitting layer of the projection screen can be divided into a plurality of pixels to correspond to a screen resolution to be displayed. 42. The laser projection system as claimed in claim 41, wherein the single pixels comprise red, blue and green subpkel, and each time, the area of the prime is not determined. The laser array system of the same type, as described in claim 32, wherein the laser light of the first type of wavelength adopts blue and red lasers as the first A laser source of a type of laser source module uses a laser light having a wavelength of about 4 〇 5 nm, 980 nm or 1064 nm to excite one of the luminescent materials to produce a green image. The diameter of the laser beam (Ll) is worn and each time 以避免 to prevent the laser beam (U) from simultaneously illuminating the two sub-halogens on 47 52 201033723. The laser projection system described in item 44 of the beam enclosures, wherein the laser beam is the same; the id: shadow * the last arrangement of the pixels is aligned to avoid the laser shooting to the two-light scanning to be simultaneously 46, as applied | = Laser strikes the light: When the person is a vegetarian, turn off the laser. And each of the four kinds of blue, green and white subpixels, the column can be the phase product is not equal, and the neighboring pixels between the sub-pictures are Wei Wei secret, it is expected that each of them ; u progress includes red, blue, green, white and g kinds of sub-nutrients of the extended color gamut, and further includes the laser projection system described in the above items, wherein the individual. 47 48. The laser projection system of claim 1, wherein the projection screen is a light layer and the luminescent layer comprises at least one luminescent material..... ϋ 皆 can be used in a laser projection system The laser light emitted by the laser light source module is excited by the laser light, and each of them is excited by a different wavelength (λ1Ε, human...ληΕ). 49. The laser projection system of claim 48, wherein a high-density light-emitting substance (Fj) is further disposed at a position of the projection screen to generate a higher unit area light at the position. The wavelength of energy (λίΕ). 5. The laser projection system of claim 49, wherein the luminescent layer is capable of determining the position of the luminescent material (Fi;) on the projection screen at the time of production; To determine the static image that is formed on the projection screen. The laser projection system of claim 50, wherein the laser projector in the laser projection system is constructed by using a wide-band source or a narrow-band source as a projection source. 52. The laser projection system as claimed in claim 51, wherein the projection light source is a light source or a light bulb, wherein the light tube comprises a luminescent material in the projection screen to generate red, green and blue light. , white, or expand the color of the color gamut. The laser projection system of claim 1, wherein the projection screen 201033723 comprises an excitation light absorbing layer and a luminescent layer, wherein the excited light absorbing layer absorbs the emitted light emitted by the luminescent layer Excitation light to reduce the excitation light entering the outer interface side of the excitation light absorbing layer, so that the observer or the light receiver can only see the display image on the outer interface side of the luminescent layer or detect that the luminescent layer is excited Light is not visible on the outer interface side of the excited light absorbing layer to display an image or to detect that the luminescent layer is excited. 54. The laser projection system of claim 53, wherein the excited light absorbing layer is further designed to maximize absorption of visible light such that the projection screen is completely opaque black. 55. The laser projection system of claim 53, wherein the projection beam incident on the projection screen from the outer interface side of the stimulated absorbing layer or the outer interface side of the luminescent layer comprises one or more wavelength excitations. The light, in order to excite the various luminescent substances in the luminescent layer, causes the projection screen to produce an image. The laser projection system of claim 53, wherein the external interface of the excitation light absorbing layer and the interface between the excitation light absorbing layer and the luminescent layer are provided with at least one anti-reflection layer [where is the Claim of anti-reflection treatment] to reduce the reflection of the projection beam incident on the outer interface side of the luminescent layer on the two interfaces to increase the luminous efficacy of the S-hai projection screen. 57. The laser projection system of claim 53, wherein the outer surface of the light-emitting layer φ and the interface between the light-absorbing layer and the light-emitting layer are provided with at least one anti-reflection layer to reduce the excitation light. The light of the spectrum is reflected by this two interfaces. 58. The laser projection system of claim 53, wherein the excited light is visible light comprising red, green, blue, white, or an enlarged color gamut. The laser projection system of claim 1, wherein the projection screen comprises an excitation light absorbing layer, an illuminating layer and an excitation light absorbing layer, wherein the projected beam is excited by the excitation light absorbing layer. The interface side of the light absorbing layer is projected onto the projection screen 'the excitation light absorbing layer absorbs the light of the projection light to excite the wavelength of the luminescent layer' and absorbs and scatters less light of the excited light, so that The excited light generated by the luminescent layer propagates unimpeded to the outer surface side of the excitation light absorbing layer and is received by the observer, and prevents the environmental background of the outer surface side of the excitation light absorbing layer. 49 52 201033723 Light does not illuminate The layer produces any image. 60. The laser projection system of claim 1, wherein the projection screen comprises an excited light and a scattered light absorbing layer, a scattering layer and a light emitting layer, wherein the projected light beam is composed of the light emitting layer. The outer interface side is projected onto the projection screen, wherein the scattering layer can destroy the single directivity of the incident laser light, and generate the multi-sense scattered light having the same wavelength as the incident laser light, wherein the excited light and the scattered light absorption layer can absorb Light that is excited by the spectrum of light and absorbs light from the scattered spectrum. The laser projection system of claim 1, wherein the projection screen comprises an illuminating layer and an excitation light reflecting layer, wherein the excitation light reflecting layer reflects residual energy of the projection beam passing through the luminescent layer Returning to the luminescent layer and re-exciting the luminescent material of the ray to improve the luminous efficiency of the projection screen, and avoiding that the projection beam passes through the projection screen and enters the interface side outside the excitation light reflecting layer for receiving by the observer, and The absorption and scattering of the excitation light by the excitation light reflecting layer is extremely low, so that the excited light can enter the interface side outside the excitation light reflection layer without hindrance. 62. The laser projection system of claim 61, further comprising a scattering layer on the outer side of the excitation light reflecting layer, so that the projection screen is suitable for projection system applications. 63. The laser projection system of claim 62, wherein the excited light and the scattered light are colors comprising red, green, blue, white, or an enlarged color gamut. 64. The laser projection system of claim 2, wherein the projection screen comprises an excitation light absorbing layer, an illuminating layer, an excitation light reflecting layer and a scattering layer to increase the luminescent layer. The luminous efficiency is such that the optical power of the projection beam projected from the outer interface side of the excited light absorbing layer does not enter the outer layer of the scattering layer and is received by the observer. 65. The laser projection system of claim 64, wherein the excited light and the scattered light are visible light comprising a color of red, green, blue, white, or an enlarged color gamut. 66. The laser projection system of claim 2, wherein the projection screen comprises an excited light absorbing layer, a scattering layer, an excitation light reflecting layer and a 201033723 illuminating layer, thereby increasing the illuminating The luminous efficiency of the layer, wherein the projected beam is projected from the outside interface side of the luminescent layer to the projection screen. 67. The laser projection system of claim 1, wherein the projection screen comprises an excited light partially reflective layer and a light emitting layer, wherein the excited light partially reflective layer can be incident on either interface. The excited light is partially penetrated by a ratio, and the remaining proportions are partially reflected, and the excitation light has a relatively high penetration ratio, so that the background light on the first outer interface side of the projection screen is smaller than the opposite second When the background light is on the interface side, the projected image on the projection screen can be received by the observer on the two outer interface sides simultaneously, but the observer on the first outer interface side can observe the second outer interface side and the second outer interface side. The observer is unable to observe the view of the first external interface side Inspector. 68. The laser projection system of claim 1, wherein the projection screen comprises a portion of the excited light and the partially scattered light, a light emitting layer and a scattering layer, wherein the light is excited and The partially reflected light is used to partially reflect the light of the spectrum of the excited light and partially reflect the light of the scattered spectrum. The laser projection system of claim 1, wherein the projection screen comprises a partially reflective layer of the excited light and the scattered light, a scattering layer and a light emitting layer. The laser projection system of claim 1, wherein the projection screen comprises a light collecting layer, a light shielding layer, a light emitting layer and a scattering layer, wherein the partial light shielding layer comprises a plurality of light shielding layers. An element and a plurality of openings, wherein the concentrating layer comprises a plurality of concentrating mirrors, wherein a region of each pixel on the projection screen includes at least one splicing port and the positive center of the openings corresponding to the same pixel should be associated with the pixel Aligned in the center. 71. The laser projection system of claim 70, wherein the concentrating mirror/function is for most of the area of the light layer to collect most of the incident beam and to focus the light projected thereon and Through the opening. 72. The laser projection system and the light shielding layer are integrated as described in claim 7 of the patent application. , the t-concentrating layer 73, such as the towel material (four) 1 _ described Wei feeds the system, the towel on the projection screen 201033723 one side or both sides further set a UV-resistant layer 'to stabilize the projection screen characteristics and extend its Service life. 74. If you apply for a patent scope! The laser projection system, wherein the laser projector further comprises at least one convex mirror disposed between the rotating plane mirror module and the projection screen in the laser projector to enable the lightning generated by the laser projector The beam is first reflected by the rotating plane mirror module onto the convex mirror and then projected onto the projection screen 'to make the reflection through the convex mirror to enlarge the scanning angle of the laser beam so that the distance between the projection screen and the laser projector is not The invention relates to a laser projection system according to claim 74, wherein the convex ❿ mirror is disposed near a center line of the plane to be projected, Or the leftmost point or the topmost point of the projected picture, or the rightmost point or the lowest point of the projected picture. 76. The laser projection system of claim 74, wherein the laser projection ff further comprises at least one planar mirror module disposed between the convex mirror and the shadow screen to enable the laser The laser beam generated by the projector is first reflected by the rotating plane mirror plate group onto the convex mirror, and then reflected by the plane mirror module and then projected onto the projection screen to transmit the reflection through the planar mirror module. To expand the scanning angle of the laser beam.