CN106200229A

CN106200229A - Splicing display device and tiled display control method

Info

Publication number: CN106200229A
Application number: CN201510219633.6A
Authority: CN
Inventors: 郭祖强; 胡飞; 李屹
Original assignee: Shenzhen Yili Ruiguang Technology Development Co Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; Shenzhen Appotronics Technology Co Ltd
Priority date: 2015-05-04
Filing date: 2015-05-04
Publication date: 2016-12-07
Anticipated expiration: 2035-05-04
Also published as: CN106200229B

Abstract

The present invention provides a kind of splicing display device and tiled display control method, this splicing display device includes at least one projection display unit and splicing control unit, projection display unit includes excitation source and compensatory light and Wavelength converter, the compensation light of Wavelength converter outgoing sequential under the alternately irradiation of compensatory light and excitation source and at least one Stimulated Light, there is overlap in the spectrum compensating at least one Stimulated Light in light and at least one Stimulated Light, and between the two can independent regulation；Splicing control unit includes chromaticity coordinates adjustment module, it is adjusted to the gray-scale intensity compensating light in each projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping, to regulate the chromaticity coordinates of the first primary lights of each projection display unit to target color coordinates.The present invention is ensureing the conforming loss simultaneously reducing gamut range of the chromaticity coordinates of each primary lights between each projection display unit.

Description

Splicing display device and tiled display control method

Technical field

The present invention relates to optical technical field, more particularly, it relates to splicing display device and tiled display control method.

Background technology

In recent years, along with reaching its maturity of laser fluorescence powder technology, this technology overcomes the low problem of brightness that LED projection shows, extensively applies in tiled display field (as spelled wall etc.).Owing to splicing display device generally comprises multiple projection display unit, in order to reach preferable tiled display effect, typically require that between each projection display unit in splicing display device, color all keeps consistent with brightness, otherwise can have a strong impact on the effect of tiled display.Generally, brightness is increased or decreased to regulate by the power of the light-emitting device of projection display unit is increased or decreased, but the color distortion that the difference of the optical element being because in light path system causes, such as optical filter coating batch can cause color distortion with the difference of batch.In the DLP Display Technique of existing laser fluorescence powder technology, if to overcome this difference, general employing chromaticity coordinates adjusts (Color Coordinate Adjustment, CCA) technology and carries out color adjustment.As it is shown in figure 1, there are two projection display units, the gamut range of one of them projection display unit is ABC, and another projection display unit gamut range is A1B1C.If the two projection display unit is spliced, then need the chromaticity coordinates furnishing by each primary lights of the two projection display unit consistent, to ensure the consistent of the gamut range of each projection display unit, and then ensure the colour consistency between each projection display unit, after using CCA technology to carry out color adjustment, the chromaticity coordinates of the two projection display unit can be adjusted to the common factor of two shown in Fig. 1 triangle, A1B2C the most as shown in Figure 1, wherein B2 is the intersection point of BCA1B1, so can lose the gamut range of the two projection display unit respectively.

Summary of the invention

In view of this, the invention provides a kind of splicing display device, to solve the loss problem of the gamut range that existing splicing display device causes when ensureing the chromaticity coordinates concordance of each projection display unit.

First aspect, it is provided that a kind of splicing display device, including at least one projection display unit, also includes splicing control unit, wherein:

nullDescribed projection display unit includes light-emitting device，Described light-emitting device includes the excitation source sending exciting light and sends the compensatory light compensating light，Also include being arranged at the Wavelength converter in exciting light that described excitation source sends and the transmission light path compensating light that described compensatory light sends，Described Wavelength converter is outgoing sequential light under the alternately irradiation of described compensatory light and described excitation source，Described sequential light includes at least one Stimulated Light and described compensation light，There is overlap in the spectrum of at least one Stimulated Light in described compensation light and at least one Stimulated Light described，Described compensation light and there is the Stimulated Light of spectra overlapping with described compensation light each other can independent regulation，The first primary lights that the Stimulated Light sequential of described compensation light and at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light is mixed to form in described projection display unit；

Described splicing control unit includes chromaticity coordinates adjustment module, described chromaticity coordinates adjustment module is for by being adjusted the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light, all regulating to target color coordinates with the chromaticity coordinates by the first primary lights of each described projection display unit.

Preferably, described splicing display device also includes:

Detector unit, for detecting chromaticity coordinates and/or the brightness of each primary lights in each described projection display unit；

Desired value arranges unit, when the chromaticity coordinates of the same base coloured light between each described projection display unit is inconsistent, set the target color coordinates of same base coloured light between each described projection display unit, and/or the brightness of the same base coloured light between each described projection display unit inconsistent time, set the object brightness of same base coloured light between each described projection display unit.

Preferably, described chromaticity coordinates adjustment module includes:

Light source adjusting part, for the output of compensatory light in each described projection display unit and the output of excitation source are modulated respectively, with the gray-scale intensity compensating light regulated in described projection display unit and the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light.

Preferably, described chromaticity coordinates adjustment module includes:

Gray scale adjusting part, for the first gray value in each described projection display unit and the second gray value are modulated respectively, with the gray-scale intensity compensating light regulated in described projection display unit and the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light；

Wherein said first gray value is used for controlling spatial light modulation assembly and is modulated described compensation light, and described second gray value exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping and is modulated for controlling spatial light modulation assembly pair with described compensation light.

Preferably, described chromaticity coordinates adjustment module includes:

Combination adjusting part, for the compensatory light in each described projection display unit and the output of excitation source and the first gray value and the second gray value are modulated respectively, with the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity compensating light regulated in described projection display unit and the Stimulated Light that there is spectra overlapping with described compensation light；

Preferably, described splicing control unit also includes:

Luminance adjustment module, in the case of the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity compensating light kept in each described projection display unit and the Stimulated Light that there is spectra overlapping with described compensation light is constant, by the object brightness of the brightness regulation of the first primary lights between each described projection display unit to described first primary lights.

Preferably, described wavelength conversion layer is included in the first wave length conversion layer irradiating lower outgoing the first Stimulated Light of described excitation source, described compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband, wherein:

Described first compensates light exists spectra overlapping with described first Stimulated Light, described second compensates light exists spectra overlapping with described first Stimulated Light, and described first compensate the first band light sequential in light and described first Stimulated Light and be mixed to form the three primary colours light of described projection display unit, described second compensates light and the second band light sequential in described first Stimulated Light is mixed to form the four primary light of described projection display unit.

Preferably, described chromaticity coordinates adjustment module includes:

First chromaticity coordinates adjustment module, for by the output of the first compensatory light in each described projection display unit and the output of described excitation source are modulated regulating the ratio of the gray-scale intensity of the first band light in the described first gray-scale intensity compensating light and described first Stimulated Light, so that the chromaticity coordinates of the described three primary colours light of each described projection display unit is regulated the target color coordinates to described three primary colours light；

Second chromaticity coordinates adjustment module, in the case of the ratio of the output at the output of the first compensatory light ensured in each described projection display unit and excitation source is constant, the output of the second compensatory light in each described projection display unit is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light in each described projection display unit and described first Stimulated Light, so that the chromaticity coordinates of the described four primary light of each described projection display unit is regulated the target color coordinates to described four primary light.

Preferably, described luminance adjustment module includes:

First luminance adjustment module, in the case of the ratio of the output at the output of the first compensatory light ensured in each described projection display unit and excitation source is constant, the output of first compensatory light regulated in each described projection display unit of equal proportion and the output of excitation source, with the object brightness by the brightness regulation of the three primary colours light of each described projection display unit to three primary colours light；

Second luminance adjustment module, for constant at the output ensureing excitation source, and in the case of ensureing that the ratio of the output of the second compensatory light in each described projection display unit and the output of described excitation source is constant, the regulation described second of equal proportion compensates the gray value that gray value corresponding to light is corresponding with the second band light in described first Stimulated Light, with the object brightness by the brightness regulation of the four primary light of each described projection display unit to four primary light；

Wherein said second compensates gray value corresponding to light is used for controlling spatial light modulation assembly and compensates light to described second and be modulated, and the second band light in the first Stimulated Light is modulated by the gray value that second band light in described first Stimulated Light is corresponding for controlling spatial light modulation assembly.

Preferably, described splicing control unit also includes:

White balance adjusting module, for by the output of the light source corresponding with the second primary lights in each described projection display unit is modulated regulating the brightness of the second primary lights of each described projection display unit, so that the white balance of each described projection display unit reaches default target white balance；

Wherein said second primary lights refer to remaining primary lights in addition to described first primary lights of each described projection display unit.

Second aspect, it is provided that a kind of tiled display control method based on described splicing display device, described method includes:

By the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light is adjusted, all regulate to target color coordinates with the chromaticity coordinates by the first primary lights of each described projection display unit；

Wherein said first primary lights refer to that the Stimulated Light sequential of at least some of wave band in compensating light described in described projection display unit and there is the Stimulated Light of spectra overlapping with described compensation light mixes and the primary lights that formed.

Compared with prior art, technical scheme provided by the present invention has the advantage that

nullThe splicing display device that the present invention provides includes multiple projection display unit，Each projection display unit includes light-emitting device，This light-emitting device can the compensation light of outgoing sequential and at least one Stimulated Light，There is spectra overlapping at least one Stimulated Light wherein compensated in light and at least one Stimulated Light，And the compensating light and there is the Stimulated Light of spectra overlapping can separate regulate between the two with compensating light of institute's outgoing，Such that it is able to compensating light and there is the Stimulated Light of spectra overlapping ratio between the two with compensating light by regulation institute outgoing，And then by by compensating light and the chromaticity coordinates of primary lights formed with the Stimulated Light compensating light and existing at least some of wave band in the Stimulated Light of spectra overlapping and brightness regulation to target color coordinates and object brightness，Thus ensureing the conforming loss simultaneously reducing gamut range of the chromaticity coordinates of each primary lights between each projection display unit.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The gamut range schematic diagram of two projection display units that the splicing display device that Fig. 1 provides for prior art includes；

The structural representation of the splicing display device that Fig. 2 provides for the embodiment of the present invention；

The structural representation of the projection display unit that Fig. 3 provides for the embodiment of the present invention；

The sectional area schematic diagram of the Wavelength converter that Fig. 4 provides for the embodiment of the present invention；

The sectional area schematic diagram of the Wavelength converter that Fig. 5 provides for another embodiment of the present invention；

The example partitions figure of the Wavelength converter that Fig. 6 provides for the embodiment of the present invention；

The sequential chart of the emergent light of Wavelength converter shown in Fig. 6 that Fig. 7 provides for the embodiment of the present invention；

The structural representation of the splicing display device that Fig. 8 provides for another embodiment of the present invention；

The structural representation of the splicing display device that Fig. 9 provides for another embodiment of the present invention；

The structural representation of the splicing display device that Figure 10 provides for another embodiment of the present invention；

The structural representation of the splicing display device that Figure 11 provides for another embodiment of the present invention；

The structural representation of the splicing display device that Figure 12 provides for another embodiment of the present invention；

The structural representation of the projection display unit that Figure 13 provides for another embodiment of the present invention；

The light sequential chart of the spatial light modulation assembly that Figure 14 provides for the embodiment of the present invention；

The light sequential chart of the spatial light modulation assembly that Figure 15 provides for the embodiment of the present invention；

The structural representation of the projection display unit that Figure 16 provides for another embodiment of the present invention；

The structural representation of the splicing display device that Figure 17 provides for another embodiment of the present invention；

The sequential chart of the light of the Wavelength converter outgoing that Figure 18 provides for the embodiment of the present invention；

Figure 19 is the light sequential chart of the spatial light modulation assembly that the embodiment of the present invention provides；

Figure 20 is the flowchart of the splicing control method that the embodiment of the present invention provides.

Detailed description of the invention

The invention provides a kind of splicing display device, including at least one projection display unit, described projection display unit includes:

Including at least one projection display unit, also include splicing control unit, wherein:

Present invention also offers a kind of tiled display control method based on described splicing display device, described method includes:

It is above the core concept of the present invention, understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.

Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention can also use other to be different from alternate manner described here to be implemented, those skilled in the art can do similar application in the case of intension of the present invention, and therefore the present invention is not limited by following public specific embodiment.

Secondly, the present invention combines schematic diagram and is described in detail, when describing the embodiment of the present invention in detail; for ease of explanation; representing that the profile of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.Additionally, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.

Describe in detail below by several embodiments.

Embodiment one

Present embodiments providing a kind of splicing display device, this splicing display device includes at least one projection display unit 100 and splicing control unit 200.As in figure 2 it is shown, this splicing display device includes two projection display units 100, the respectively first projection display unit and the second projection display unit.

Referring to Fig. 3, this projection display unit 100 includes light-emitting device.This light-emitting device includes the excitation source 111 sending exciting light and sends the compensatory light 112 compensating light.Also include being arranged at the Wavelength converter 113 in exciting light that excitation source sends and the transmission light path compensating light that compensatory light sends.This Wavelength converter 113 is outgoing sequential light under the alternately irradiation of excitation source 111 and compensatory light 112, and this sequential light includes at least one Stimulated Light and compensates light.There is spectra overlapping at least one Stimulated Light wherein compensated in light and at least one Stimulated Light, and compensate light and there is the Stimulated Light of spectra overlapping can compensate light and the first primary lights that the Stimulated Light sequential with at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping is mixed to form in projection display unit 100 with independent regulation each other with compensating light.

Wherein excitation source 111 is Sony ericsson mobile comm ab or the solid state light emitting arrays including multiple Sony ericsson mobile comm ab.Wherein Sony ericsson mobile comm ab includes laser diode, light emitting diode etc..Preferably, excitation source 111 is laser diode or diode laser matrix.The exciting light of this excitation source 111 outgoing can be ultraviolet light or blue light, preferably, the exciting light of this excitation source 111 outgoing is blue light, it is outgoing dominant wavelength to be the blue light source of 445nm such as this excitation source 111, can also be outgoing dominant wavelength to be the blue light source of 462nm, preferably, this excitation source 111 is outgoing dominant wavelength to be the blue light source of 445nm.

Wavelength converter 113 under the irradiation of the exciting light of excitation source 111 outgoing can at least one Stimulated Light of outgoing sequential, and the dominant wavelength of Stimulated Light is longer than the dominant wavelength of exciting light.This Wavelength converter 113 outgoing can compensate light under the irradiation of compensatory light 112, and this compensation light and Wavelength converter 113 at least one Stimulated Light at least one Stimulated Light of the sequential of outgoing under the irradiation of exciting light exist spectra overlapping, and the Stimulated Light sequential of this compensation light and at least some of wave band in there is the Stimulated Light of spectra overlapping with this compensation light is mixed to form a kind of primary lights of projection display unit 100.

Compensatory light 113 is LASER Light Source, as laser diode or diode laser matrix etc. can the light sources of shoot laser.Spectra overlapping is there is in the light that compensates of this compensatory light 113 outgoing with Wavelength converter 113 at least one Stimulated Light at least one Stimulated Light of the sequential of institute's outgoing under the irradiation of exciting light.As when Wavelength converter 113 outgoing gold-tinted or the blue light of outgoing sequential and gold-tinted or the green glow of outgoing sequential and gold-tinted or the HONGGUANG of outgoing sequential and green glow under the irradiation of exciting light, this compensatory light 113 includes red LASER Light Source and/or dark green LASER Light Source.The dominant wavelength of the HONGGUANG of the reddest LASER Light Source outgoing is the arbitrary value between 625nm-645nm, including endpoint value, it is preferred that the dominant wavelength of the HONGGUANG of this red LASER Light Source outgoing is 638nm.The dominant wavelength of the dark green light of dark green LASER Light Source outgoing is the arbitrary value between 510nm-530nm, including endpoint value, it is preferred that the dominant wavelength of the dark green light of this viridescent LASER Light Source outgoing is 520nm.

In the present embodiment, Wavelength converter 113 can be transmission-type Wavelength converter, reflective Wavelength converter or the Wavelength converter comprising transmissive portion and reflecting part.Preferably, this Wavelength converter 113 is transmission-type Wavelength converter or is the Wavelength converter comprising transmissive portion and reflecting part.When this Wavelength converter 113 is the Wavelength converter comprising transmissive portion and reflecting part, the sectional area being provided with the first diffusion layer is positioned at the transmissive portion of this Wavelength converter 113.Concrete, this Wavelength converter 113 can be discoid colour wheel.

Concrete, this Wavelength converter 113 is provided with at least two sectional area along its direction of motion, at least one sectional area in this at least two sectional area is provided with the first diffusion layer (diffuser), and at least one sectional area in remaining segment region in this at least two sectional area is provided with wavelength conversion layer.Wherein the direction of motion can be circular motion, horizontal movement or vertical movement.Preferably, this Wavelength converter 113 is discoid colour wheel, and its direction of motion is circular motion direction.

This first diffusion layer is to implement roughening optical treatment on the surface of Wavelength converter 113 and formed.Exciting light is converted into Stimulated Light by this wavelength conversion layer.The dominant wavelength of the Stimulated Light that wavelength conversion layer is converted to is longer than exciting light dominant wavelength.This wavelength conversion layer is the layer comprising material for transformation of wave length, wherein material for transformation of wave length include but not limited to fluorescent material etc. can under the exciting of exciting light the material of the Stimulated Light that generation spectrum is different from the spectrum of exciting light.As this wavelength conversion layer can include yellow wavelengths conversion layer etc..

Preferably, at least one sectional area at least two sectional area of this Wavelength converter 113 is provided with the second diffusion layer.This second diffusion layer is to bring the optical material of spreading effect to be formed in the surface configuration of Wavelength converter.Wherein the first diffusion layer, wavelength conversion layer and the second diffusion layer lay respectively at the different sectional areas of Wavelength converter.

This Wavelength converter 113 is outgoing sequential light under the alternately irradiation of excitation source 111 and compensatory light 112.Concrete, excitation source 111 is at the sectional area being provided with wavelength conversion layer of Wavelength converter 113 and is provided with the sectional area of the second diffusion layer and opens, and closes at other sectional area；Compensatory light 112 is opened at least one sectional area being provided with the first diffusion layer, close at other sectional area, so that the outgoing under the alternately irradiation of excitation source 111 and compensatory light 112 of this Wavelength converter 113 includes the sequential light compensating light and at least one Stimulated Light.

Refer to Fig. 4 to 5, it it is the distribution schematic diagram of sectional area of Wavelength converter 113 in Fig. 3 of providing of the embodiment of the present invention, but the distribution of the sectional area of Wavelength converter 113 is not limited to shown in 5 with Fig. 4, it can be any one distribution meeting following requirement: at least one sectional area is provided with the first diffusion layer, at least one sectional area is provided with wavelength conversion layer, and the first diffusion layer and wavelength conversion layer are positioned on the different sectional areas of Wavelength converter 113.Preferably, the output light of this light-emitting device 110 or the emergent light of this Wavelength converter 113 comprise three primary colours light.

Referring to Fig. 4, this Wavelength converter 113 is peripherally disposed the sectional area 1131 being provided with the first diffusion layer (diffuser) and the sectional area 1132 being provided with wavelength conversion layer.This Wavelength converter 113 is outgoing sequential light under the alternately irradiation of excitation source 111 and compensatory light 112, and this sequential light includes Stimulated Light and compensates light.

Concrete, time in the transmission path of the exciting light that the sectional area 1132 being provided with wavelength conversion layer of Wavelength converter 113 is positioned at excitation source 111 outgoing, open excitation source 111, close compensatory light 112, time in the transmission path of the exciting light that the sectional area 1131 being provided with the first diffusion layer (diffuser) of Wavelength converter 113 is positioned at excitation source 111 outgoing, open compensatory light 112, close excitation source 111, so that the Stimulated Light of this Wavelength converter 113 outgoing sequential and compensation light.Wherein this Stimulated Light is that the wavelength conversion layer being arranged on the sectional area 1132 of this Wavelength converter 113 absorbs the Stimulated Light that exciting light is converted to, and this compensation light exists overlapping with the spectrum of this Stimulated Light.

Referring to Fig. 5, this Wavelength converter 113 is peripherally disposed to be had and is provided with the sectional area 1131 of the first diffusion layer (diffuser), is provided with the sectional area 1132 of wavelength conversion layer and is provided with the sectional area 1133 of the second diffusion layer.This Wavelength converter 113 is outgoing sequential light under the alternately irradiation of excitation source 111 and compensatory light 112.This sequential light includes compensating light, Stimulated Light and exciting light.

Concrete, when the sectional area 1132 being provided with wavelength conversion layer of Wavelength converter 113 is positioned in the transmission path of the exciting light that excitation source 111 sends with the sectional area 1133 being provided with the second diffusion layer, open excitation source 111, close compensatory light 112, when the sectional area 1131 being provided with the first diffusion layer (diffuser) of Wavelength converter 113 is positioned in the transmission path of the exciting light that excitation source 111 sends, open compensatory light 112, close excitation source 111, so that the compensation light of this Wavelength converter 113 outgoing sequential, Stimulated Light and exciting light.Wherein this Stimulated Light is that the wavelength conversion layer being arranged on the sectional area 1132 of Wavelength converter 112 absorbs the Stimulated Light that exciting light is converted to, and this compensation light exists overlapping with the spectrum of this Stimulated Light.Exciting light is the exciting light after configured the second diffusion layer diffusion on the sectional area 1133 of Wavelength converter 112.

Refer to Fig. 6, for the concrete distribution example figure of sectional area of the Wavelength converter 113 that the embodiment of the present invention provides.This Wavelength converter 113 includes peripherally disposed three sectional area, and these three sectional area is respectively equipped with the sectional area (blue section B as in Fig. 6) of the second diffusion layer, is provided with yellow wavelengths conversion layer (yellow section Y as in Fig. 6), is provided with the sectional area (the diffuser section as in Fig. 6) of the first diffusion layer.The light being incident to it is scattered by the sectional area being provided with the second diffusion layer, as being scattered the exciting light being incident to it.The light being incident to it is converted into gold-tinted by the sectional area being provided with yellow wavelengths conversion layer, as the exciting light being incident to it is converted to gold-tinted.The light being incident to it is scattered by the sectional area being provided with the first diffusion layer, as being scattered the compensation light being incident to it.

When the sectional area on Wavelength converter 113 as shown in Figure 6 time, if the blue light source that excitation source is outgoing blue light B, compensatory light includes red LASER Light Source and the dark green LASER Light Source of outgoing viridescent light G1 of outgoing HONGGUANG R1, then excitation source, the sequential of the sequential light of institute's outgoing is as shown in Figure 7 under alternately the irradiating of excitation source and compensatory light for the sectional area distribution cut-offfing sequential and this Wavelength converter 113 of compensatory light and Wavelength converter 113, the reddest LASER Light Source and dark green LASER Light Source are opened at the sectional area being provided with the first diffusion layer of Wavelength converter 113, close at other sectional area；Excitation source being provided with the second diffusion layer and being provided with the sectional area of yellow wavelengths conversion layer and open at Wavelength converter 113, close at other sectional area, making the blue light B of this Wavelength converter 113 outgoing sequential, gold-tinted Y, mixed light R1+G1, this mixed light R1+G1 is Wavelength converter 113 HONGGUANG R1 of outgoing and this Wavelength converter 113 mixed light of the dark green light G1 of outgoing under the irradiation of dark green LASER Light Source under the irradiation of red LASER Light Source.Wherein Wavelength converter 113 HONGGUANG R1 of outgoing and Wavelength converter 113 red primary light that the HONGGUANG R2 sequential in the gold-tinted of outgoing is mixed to form in projection display unit under the irradiation of excitation source under the irradiation of red LASER Light Source, the dark green light G1 of Wavelength converter 113 outgoing under the irradiation of dark green LASER Light Source and the Wavelength converter 113 green primary light that the green glow G2 sequential in the gold-tinted of outgoing is mixed to form in projection display unit under the irradiation of excitation source.

Splicing control unit 200 includes chromaticity coordinates adjustment module 210.This chromaticity coordinates adjustment module 210, by being adjusted the ratio of the gray-scale intensity compensating light in each projection display unit 100 and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with this compensation light, all regulates to target color coordinates with the chromaticity coordinates by the first primary lights of each projection display unit 100.

Wherein the first primary lights refer to that projection display unit 100 projects the one in the primary lights in the projected picture of formation on screen, and these first primary lights are to be mixed, by Wavelength converter 113 compensation light and Wavelength converter 113 Stimulated Light sequential of at least part of wave band of the Stimulated Light that there is spectra overlapping with this compensation light of outgoing under the irradiation of excitation source 111 of outgoing under the irradiation of compensatory light 112, the primary lights formed.

Primary lights during wherein projection display unit 100 projects the projected picture of formation on screen generally comprise red primary light, green primary light and blue primary light.It can be exciting light that projection display unit 100 projects the primary lights in the projected picture of formation on screen, and the blue primary light in projection display unit 100 projects the projected picture of formation on screen can be for the blue light B of the Wavelength converter outgoing shown in Fig. 6.It can also be Stimulated Light that projection display unit 100 projects the primary lights in the projected picture of formation on screen.nullProjection display unit 100 projects the primary lights in the projected picture of formation on screen and can also is that compensation light and Wavelength converter 113 light that the Stimulated Light sequential of at least part of wave band of the Stimulated Light that there is spectra overlapping with this compensation light of outgoing mixes under the irradiation of excitation source 111 of Wavelength converter 113 outgoing under the irradiation of compensatory light 112，These primary lights are the first primary lights，As the red primary light in the projected picture that projection display unit 100 is projected on screen can be for HONGGUANG R1 of Wavelength converter 113 outgoing shown in Fig. 6 and the sequential mixed light of HONGGUANG R2 separated from gold-tinted Y，The green primary light that projection display unit 100 is projected in the projected picture on screen can be for the dark green light G1 of the Wavelength converter outgoing shown in Fig. 6 and the sequential mixed light of the green glow G2 separated from gold-tinted Y，Then the red primary light in this projection display unit and green primary light are the first primary lights.It is appreciated that the one in the red, green, blue primary lights that these first primary lights potentially include in projection display unit, it is also possible to include two kinds in red, green, blue primary lights or three kinds.

Wherein gray-scale intensity refers to the brightness of projected picture that projection display unit formed on screen, and this gray-scale intensity is equal to the brightness L of the light being incident on spatial light modulation assembly_MWith for controlling the gray value S that the light being incident on spatial light modulation assembly is modulated by spatial light modulation assembly_MProduct.

If the gray-scale intensity of primary lights of projection display unit is equal to the brightness of these primary lights being incident on spatial light modulation assembly with for controlling the spatial light modulation assembly product to the gray value that these primary lights being incident on spatial light modulation assembly are modulated.If these primary lights are the first primary lights, then the gray-scale intensity of these the first primary lights be compensate light gray-scale intensity and with compensate the gray-scale intensity sum that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping.The gray-scale intensity wherein compensating light is the brightness L compensating light being incident on spatial light modulation assembly_M1With compensate the gray value S that is modulated of light to be incident on spatial light modulation assembly for controlling spatial light modulation assembly_M1Product, be that be incident on spatial light modulation assembly and at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping Stimulated Light brightness L with the gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping_M2With for control spatial light modulation assembly to be incident on spatial light modulation assembly with compensate light and there is the gray value S that the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping is modulated_M2Product.

Embodiment two

Fig. 8 shows the structure of the splicing display device that another embodiment of the present invention provides, and this splicing display device is the improvement done on the basis of shown in Fig. 2, and the most unspecified part see above-described embodiment one.This splicing display device also includes that detector unit 300 and desired value arrange unit 400.Wherein:

Detector unit 300 detects chromaticity coordinates and/or the brightness of each primary lights in each projection display unit 100.

Concrete, during the chromaticity coordinates of this detector unit 300 red, green, blue primary lights in detecting each projection display unit 100, general detect each projection display unit 100 on screen, projected the chromaticity coordinates of red, green, blue primary lights in the projected picture of formation.This detector unit 300 can be any one chromaticity coordinates that can detect each primary lights in projected picture and/or equipment of brightness that prior art provides.

Desired value arrange the chromaticity coordinates of the unit 400 same base coloured light between each projection display unit 100 inconsistent time, the target color coordinates of the primary lights that chromaticity coordinates is inconsistent in each projection display unit 100 is set, and/or the brightness of the same base coloured light between each projection display unit 100 inconsistent time, set the object brightness of the inconsistent primary lights of the brightness of each projection display unit 100.

Same base coloured light between the most each projection display unit 100 refers to the primary lights that the color in each projection display unit is identical.As assumed, splicing display device includes two projection display units, it is respectively projection display unit A and projection display unit B, then the red primary light in projection display unit A and the red primary light in projection display unit B are the same base coloured light between each projection display unit, green primary light in projection display unit A and the green primary light in projection display unit B be the same base coloured light between each projection display unit, the blue primary light in projection display unit A and the blue primary light in projection display unit B be the same base coloured light between each projection display unit.

Concrete, desired value arrange the chromaticity coordinates of the unit 400 same base coloured light between each projection display unit 100 inconsistent time, the target color coordinates of primary lights inconsistent for chromaticity coordinates in each projection display unit 100 is set to identical value, time as inconsistent in the chromaticity coordinates of the red primary light when the chromaticity coordinates of the red primary light in projection display unit A and projection display unit B, the target color coordinates of the red primary light in the target color coordinates of the red primary light in projection display unit A and projection display unit B is set to identical value.Desired value arrange the brightness of the unit 400 same base coloured light between each projection display unit 100 inconsistent time, the object brightness of primary lights inconsistent for brightness in each projection display unit 100 is set to identical value, time as inconsistent in the brightness of the red primary light when the brightness of the red primary light in projection display unit A and projection display unit B, the object brightness of the red primary light in the object brightness of the red primary light in projection display unit A and projection display unit B is set to identical value.For other primary lights, its ultimate principle is the most identical, does not repeats them here.

Preferably, desired value arranges unit 400 and arranges the target color coordinates of these primary lights according to the chromaticity coordinates of the primary lights in each projection display unit 100.In the present embodiment, when the chromaticity coordinates of the same base coloured light according to each projection display unit 100 arranges the target color coordinates of these primary lights, can set according to concrete needs of the color to splicing display device.Concrete, the target color coordinates of the primary lights of each projection display unit 100 can be set as the meansigma methods of chromaticity coordinates of these primary lights of each projection display unit 100, maximum, intermediate value etc..As included projection display unit A and projection display unit B when projection display equipment, then desired value arranges unit 400 target color coordinates of the red primary light of each projection display unit 100 can be set to the chromaticity coordinates of red primary light of projection display unit A and the meansigma methods of chromaticity coordinates, maximum or the maximum of the red primary light of projection display unit B.For other primary lights, its principle is identical, does not repeats them here.Setting the purpose of the target color coordinates of each primary lights in each projection display unit 100 is in order to the chromaticity coordinates of same base coloured light inconsistent for the chromaticity coordinates of each projection display unit 100 is all adjusted to this target color coordinates, so that the chromaticity coordinates of the same base coloured light between each projection display unit 100 keeps consistent, and then the color between each projection display unit is made to keep consistent.Wherein different base colors light can set different target color coordinates, as can be that red primary light and the green primary light of projection display unit 100 arrange identical target color coordinates, it is also possible to arranges different target color coordinates.

Preferably, desired value arranges unit 400 and arranges the object brightness of these primary lights according to the brightness of the primary lights in each projection display unit 100 and white balance, the object brightness making same base coloured light in each projection display unit 100 is identical, keeps white balance between the object brightness of different base colors light.

Embodiment three

Fig. 9 shows the structure of the splicing display device that another embodiment of the present invention provides, this splicing display device is the improvement done on the basis of the splicing display device shown in Fig. 2 or Fig. 7, and the part not described in the present embodiment see above-described embodiment one or embodiment two.Chromaticity coordinates adjustment module 210 in this embodiment specifically includes one or more in light source adjusting part 211, gray scale adjusting part 212, combination adjusting part 213.Wherein:

The output of the compensatory light in each projection display unit and the output of excitation source are modulated by light source adjusting part 211 respectively, with the gray-scale intensity compensating light in regulation projection display unit and with compensate the ratio of gray-scale intensity that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, all regulate to target color coordinates with the chromaticity coordinates by the first primary lights of each projection display unit.

In the present embodiment, the gray value of the Stimulated Light of at least some of wave band in the gray value compensating light and the Stimulated Light that there is spectra overlapping with compensation light is identical, all uses the gray value corresponding with the first primary lights of projection display unit.As being red primary light when the first primary lights of projection display unit, and during the sequential mixed light of HONGGUANG R1 that this red primary light is Wavelength converter outgoing under the irradiation of red LASER Light Source and Wavelength converter HONGGUANG R2 of the gold-tinted of outgoing under the irradiation of excitation source, then due to gray value that the gray value corresponding with this red primary light is the red primary picture signal in source images signal, therefore, the gray value of Wavelength converter red primary picture signal during the gray value of HONGGUANG R1 of outgoing is source images signal under the irradiation of red LASER Light Source, Wavelength converter gray value of HONGGUANG R2 of the gold-tinted of outgoing under the irradiation of excitation source is also the gray value of the red primary picture signal in source images signal.For other primary lights, its ultimate principle is identical, does not repeats them here.

Wherein source images signal refers to need the picture signal of Projection Display, and this source images signal includes each primary color image signal, as generally comprised red primary picture signal, green primary picture signal and blue primary picture signal.Every kind of primary color image signal includes the gray scale of each pixel in this source images.

Preferably, the output of the compensatory light in each projection display unit and the output of excitation source are specifically modulated respectively by this light source adjusting part 211 according to the requirement of equation below (1):

L_M=L_M1+L_M2

X_{M} = \frac{\frac{X_{M 1}}{Y_{M 1}} L_{M 1} + \frac{X_{M 2}}{Y_{M 2}} L_{M 2}}{\frac{1}{Y_{M 1}} L_{M 1} + \frac{1}{Y_{M 2}} L_{M 2}} - - - (1)

Y_{M} = \frac{L_{M 1} + L_{M 2}}{\frac{1}{Y_{M 1}} L_{M 1} + \frac{1}{Y_{M 2}} L_{M 2}}

Wherein M represents the first primary lights, and M1 represents and compensates light, and M2 represents the Stimulated Light of at least some of wave band in the Stimulated Light that there is spectra overlapping with compensation light.

L_MThe brightness of the first primary lights that the Stimulated Light sequential at least some of wave band in compensating light and there is the Stimulated Light of spectra overlapping with this compensation light mix and formed, the i.e. brightness of these the first primary lights are the brightness of the sequential mixed light of the Stimulated Light of at least some of wave band in compensating light and there is the Stimulated Light of spectra overlapping with compensation light.

L_M1For compensating the brightness of light, L_M2For with compensate the brightness that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping.Wherein compensate the brightness L of light_M1Can be changed by the size changing the output of compensatory light, and the output of compensatory light can be changed by the size driving electric current changing compensatory light.Brightness with the Stimulated Light of at least some of wave band in the Stimulated Light that compensation light exists spectra overlapping can be changed by the size changing the output of excitation source, and the output of excitation source can be changed by the size driving electric current changing excitation source.Therefore, the brightness L of compensation light is regulated by above-mentioned formula_M1And the brightness L of the Stimulated Light of at least some of wave band existed with compensation light in the Stimulated Light of spectra overlapping_M2The output that can realize the output to the compensatory light in projection display unit and excitation source is modulated respectively, and then realize being adjusted to the gray-scale intensity compensating light in projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping, all regulate to target color coordinates with the chromaticity coordinates by the first primary lights of each projection display unit.

First primary lights are red primary light R and the first primary lights are to illustrate as a example by green primary light G below:

When the first primary lights are red primary light R, this red primary light R be HONGGUANG R1 of Wavelength converter outgoing under the irradiation of red LASER Light Source and Wavelength converter under the irradiation of excitation source the mixing of the HONGGUANG R2 sequential in the gold-tinted of outgoing and formed, then light source adjusting part 211 requires to be modulated the output of red LASER Light Source in each projection display unit and the output of excitation source respectively according to equation below (2):

L_R=L_R1+L_R2

X_{R} = \frac{\frac{X_{R 1}}{Y_{R 1}} L_{R 1} + \frac{X_{R 2}}{Y_{R 2}} L_{R 2}}{\frac{1}{Y_{R 1}} L_{R 1} + \frac{1}{Y_{R 2}} L_{R 2}} - - - (2)

Y_{R} = \frac{L_{R 1} + L_{R 2}}{\frac{1}{Y_{R 1}} L_{R 1} + \frac{1}{Y_{R 2}} L_{R 2}}

Wherein L_RFor the brightness of red primary light R, it is the brightness of the sequential mixed light of HONGGUANG R1 and HONGGUANG R2, L_R1For the brightness of HONGGUANG R1, L_R2For the brightness of HONGGUANG R2, (X_R, Y_R) target color coordinates of red primary light that formed for being mixed by HONGGUANG R1 and HONGGUANG R2 sequential, (X_R1, Y_R1) it is the chromaticity coordinates of HONGGUANG R1, (X_R2, Y_R2) it is the chromaticity coordinates of HONGGUANG R2.

When the first primary lights are green primary light G, the dark green light G1 of this green primary light G outgoing that is Wavelength converter under the irradiation of dark green LASER Light Source and Wavelength converter under the irradiation of excitation source the mixing of the green glow G2 sequential in the gold-tinted of outgoing and formed, then light source adjusting part 211 requires to be modulated the output of dark green LASER Light Source in each projection display unit and the output of excitation source respectively according to equation below (3):

L_G=L_G1+L_G2

X_{G} = \frac{\frac{X_{G 1}}{Y_{G 1}} L_{G 1} + \frac{X_{G 2}}{Y_{G 2}} L_{G 2}}{\frac{1}{Y_{G 1}} L_{G 1} + \frac{1}{Y_{G 2}} L_{G 2}} - - - (3)

Y_{G} = \frac{L_{G 1} + L_{G 2}}{\frac{1}{Y_{G 1}} L_{G 1} + \frac{1}{Y_{G 2}} L_{G 2}}

Wherein L_GFor the brightness of green primary light G, it is the brightness of the sequential mixed light of dark green light G1 and green glow G2, L_G1For the brightness of dark green light G1, L_G2For the brightness of green glow G2, (X_G, Y_G) target color coordinates of green primary light for being formed by dark green light G1 and the mixing of green glow G2 sequential, (X_G1, Y_G1) it is the chromaticity coordinates of dark green light G1, (X_G2, Y_G2) it is the chromaticity coordinates of green glow G2.

nullIn the present embodiment，Light source adjusting part 211 is by being modulated respectively the output of compensatory light in each projection display unit 100 and the output of excitation source，The ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity regulating the compensation light in projection display unit and the Stimulated Light that there is spectra overlapping with compensation light，And then regulation the first primary lights compensate light and with compensate the ratio of Stimulated Light of at least some of wave band that light exists the Stimulated Light of spectra overlapping，To change the chromaticity coordinates of these the first primary lights，So that the chromaticity coordinates of the first primary lights in each projection display unit 100 all reaches target color coordinates，Ensure the concordance of the chromaticity coordinates of the first primary lights in each projection display unit 100，The splicing display device implementing to provide due to the present invention can realize the concordance of chromaticity coordinates by the way of the output of regulation light source，From without loss gamut range.

The first gray value in each projection display unit 100 and the second gray value are modulated by gray scale adjusting part 212 respectively, with regulate the gray-scale intensity compensating light in projection display unit and with compensate the ratio of gray-scale intensity that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping.

Wherein the first gray value refers to that the second gray value refers to there is the gray value that the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping is modulated for controlling spatial light modulation assembly pair and compensation light for controlling spatial light modulation assembly to compensating the gray value that is modulated of light.Wherein the first gray value and the second gray value meet the requirement of equation below (4):

\frac{S_{M}}{255} L_{M} = \frac{S_{M 1}}{255} L_{M 1} + \frac{S_{M 2}}{255} L_{M 2}

X_{M} = \frac{\frac{X_{M 1}}{Y_{M 1}} \cdot \frac{S_{M 1}}{255} \cdot L_{M 1} + \frac{X_{M 2}}{Y_{M 2}} \cdot \frac{S_{M 2}}{255} \cdot L_{M 2}}{\frac{1}{Y_{M 1}} \cdot \frac{S_{M 1}}{255} \cdot L_{M 1} + \frac{1}{Y_{M 2}} \cdot \frac{S_{M 2}}{255} \cdot L_{M 2}} - - - (4)

Y_{M} = \frac{\frac{S_{M 1}}{255} \cdot L_{M 1} + \frac{S_{M 2}}{255} \cdot L_{M 2}}{\frac{1}{Y_{M 1}} \cdot \frac{S_{M 1}}{255} \cdot L_{M 1} + \frac{1}{Y_{M 2}} \cdot \frac{S_{M 2}}{255} \cdot L_{M 2}}

Wherein L_MThe brightness of described first primary lights formed for compensating light and mix with the Stimulated Light sequential compensating light and existing at least some of wave band in the Stimulated Light of spectra overlapping, L_M1For compensating the brightness of light, L_M2For with compensate the brightness that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, (X_M, Y_M) target color coordinates of the first primary lights that formed for compensating light and mix with the Stimulated Light sequential compensating light and existing at least some of wave band in the Stimulated Light of spectra overlapping, (X_M1, Y_M1) for compensating the chromaticity coordinates of light, (X_M2, Y_M2) for compensate the chromaticity coordinates that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, S_MFor the gray value corresponding with the first primary lights, S_M1It is the first gray value, S_M2It it is the second gray value.

In the present embodiment, the brightness of the Stimulated Light that the brightness of compensation light and compensation light exist at least some of wave band in the Stimulated Light of spectra overlapping keeps constant, does not the most change the output of compensatory light, does not the most change the output of excitation source.On the premise of the requirement meeting above-mentioned formula (4), by changing the S in above-mentioned formula (4)_M1And S_M2Can realize being adjusted to the gray-scale intensity compensating light in projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping, with the ratio of the Stimulated Light of at least some of wave band in the compensation light regulated in these first primary lights and the Stimulated Light that there is spectra overlapping with this compensation light, and then the chromaticity coordinates of the first primary lights of each projection display unit is all regulated to target color coordinates.

When the first primary lights are red primary light R, this red primary light R be HONGGUANG R1 of Wavelength converter outgoing under the irradiation of red LASER Light Source and Wavelength converter under the irradiation of excitation source the mixing of the HONGGUANG R2 sequential in the gold-tinted of outgoing and formed, then the output of red LASER Light Source in each projection display unit and the output of excitation source are modulated respectively by gray scale adjusting part 212 according to the requirement of equation below (5):

\frac{S_{R}}{255} L_{R} = \frac{S_{R 1}}{255} L_{R 1} + \frac{S_{R 2}}{255} L_{R 2}

X_{R} = \frac{\frac{X_{R 1}}{Y_{R 1}} \cdot \frac{S_{R 1}}{255} \cdot L_{R 1} + \frac{X_{R 2}}{Y_{R 2}} \cdot \frac{S_{R 2}}{255} \cdot L_{R 2}}{\frac{1}{Y_{R 1}} \cdot \frac{S_{R 1}}{255} \cdot L_{R 1} + \frac{1}{Y_{R 2}} \cdot \frac{S_{R 2}}{255} \cdot L_{R 2}} - - - (5)

Y_{R} = \frac{\frac{S_{R 1}}{255} \cdot L_{R 1} + \frac{S_{R 2}}{255} \cdot L_{R 2}}{\frac{1}{Y_{R 1}} \cdot \frac{S_{R 1}}{255} \cdot L_{R 1} + \frac{1}{Y_{R 2}} \cdot \frac{S_{R 2}}{255} \cdot L_{R 2}}

Wherein L_RFor the brightness of red primary light R, it is the brightness of the sequential mixed light of HONGGUANG R1 and HONGGUANG R2, L_R1For the brightness of HONGGUANG R1, LR2 is the brightness of HONGGUANG R2, (X_R, Y_R) target color coordinates of red primary light that formed for being mixed by HONGGUANG R1 and HONGGUANG R2 sequential, (X_R1, Y_R1) it is the chromaticity coordinates of HONGGUANG R1, (X_R2, Y_R2) it is the chromaticity coordinates of HONGGUANG R2.S_RFor the gray scale corresponding with red primary light, it is the gray scale of red primary picture signal in source images signal.S_R1It is the first gray value, S_R2It it is the second gray value.

This gray scale adjusting part 212 is on the premise of meeting above-mentioned formula, by changing S_R1And S_R2Size, thus it is possible to vary HONGGUANG R1 and the ratio of HONGGUANG R2 in the red primary light of projection display unit, and then change the chromaticity coordinates of red primary light of projection display unit, the chromaticity coordinates of the red primary light of each projection display unit is all regulated to target color coordinates.

When the first primary lights are green primary light G, the dark green light G1 of this green primary light G outgoing that is Wavelength converter under the irradiation of dark green LASER Light Source and Wavelength converter under the irradiation of excitation source the mixing of the green glow G2 sequential in the gold-tinted of outgoing and formed, then the output of dark green LASER Light Source in each projection display unit and the output of excitation source are modulated respectively by gray scale adjusting part 212 according to the requirement of equation below (6):

\frac{S_{G}}{255} L_{G} = \frac{S_{G 1}}{255} L_{G 1} + \frac{S_{G 2}}{255} L_{G 2}

X_{G} = \frac{\frac{X_{G 1}}{Y_{G 1}} \cdot \frac{S_{G 1}}{255} \cdot L_{G 1} + \frac{X_{G 2}}{Y_{G 2}} \cdot \frac{S_{G 2}}{255} \cdot L_{G 2}}{\frac{1}{Y_{G 1}} \cdot \frac{S_{G 1}}{255} \cdot L_{G 1} + \frac{1}{Y_{GM 2}} \cdot \frac{S_{G 2}}{255} \cdot L_{G 2}} - - - (6)

Y_{G} = \frac{\frac{S_{G 1}}{255} \cdot L_{G 1} + \frac{S_{G 2}}{255} \cdot L_{G 2}}{\frac{1}{Y_{G 1}} \cdot \frac{S_{G 1}}{255} \cdot L_{G 1} + \frac{1}{Y_{GM 2}} \cdot \frac{S_{G 2}}{255} \cdot L_{G 2}}

Wherein L_GFor the brightness of green primary light G, it is the brightness of the sequential mixed light of dark green light G1 and green glow G2, L_G1For the brightness of dark green light G1, L_G2For the brightness of green glow G2, (X_G, Y_G) target color coordinates of green primary light for being formed by dark green light G1 and the mixing of green glow G2 sequential, (X_G1, Y_G1) it is the chromaticity coordinates of dark green light G1, (X_G2, Y_G2) it is the chromaticity coordinates of green glow G2.S_GFor the gray scale corresponding with green primary light, it is the gray scale of source images signal medium green primary color image signal.S_G1It is the first gray value, S_G2It it is the second gray value.

This gray scale adjusting part 212 is on the premise of meeting above-mentioned formula, by changing S_G1And S_G2Size, thus it is possible to vary dark green light G1 and the ratio of green glow G2 in the green primary light of projection display unit, and then change the chromaticity coordinates of the green primary light of projection display unit, the chromaticity coordinates of the green primary light of each projection display unit is all regulated to target color coordinates.

nullIn the present embodiment，Gray scale adjusting part 212 is by being modulated respectively the second gray value being modulated the Stimulated Light of at least some of wave band in compensating the first gray value of being modulated of light and there is the Stimulated Light of spectra overlapping for controlling spatial light modulation assembly pair and compensation light for controlling spatial light modulation assembly in each projection display unit 100，The ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity regulating the compensation light in projection display unit and the Stimulated Light that there is spectra overlapping with compensation light，And then regulation the first primary lights compensate light and with compensate the ratio of Stimulated Light of at least some of wave band that light exists the Stimulated Light of spectra overlapping，To change the chromaticity coordinates of these the first primary lights，So that the chromaticity coordinates of the first primary lights in each projection display unit 100 all reaches target color coordinates，Ensure the concordance of the chromaticity coordinates of the first primary lights in each projection display unit 100，The splicing display device implementing to provide due to the present invention can realize the concordance of chromaticity coordinates by the way of the output of regulation light source，From without loss gamut range.

Compensatory light in each projection display unit 100 and the output of excitation source and the first gray value and the second gray value are modulated by combination adjusting part 213 respectively, to regulate the gray-scale intensity compensating light in projection display unit 100 and the ratio of the gray-scale intensity with the Stimulated Light of at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping.Wherein the first gray value is used for controlling spatial light modulation assembly and is modulated compensating light, and the second gray value exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping and is modulated for controlling spatial light modulation assembly pair and compensation light.

Concrete, combination adjusting part 213 is on the premise of meeting above-mentioned formula (4), by changing S_M1And S_M2Size, change L simultaneously_M1And L_M2Size, can change the first primary lights of projection display unit 100 compensate light and with compensate the ratio that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, and then the chromaticity coordinates of the first primary lights of change projection display unit, the chromaticity coordinates of the first primary lights of each projection display unit is all regulated to target color coordinates.

Embodiment four

Figure 10 shows the structure of the splicing display device that another embodiment of the present invention provides, this splicing display device is the improvement done on the basis of the splicing display device shown in Fig. 2, Fig. 8 or Fig. 9, and the part not described in the present embodiment see above-described embodiment one, embodiment two or embodiment three.The splicing control unit 200 of this splicing display device also includes luminance adjustment module 220.This luminance adjustment module 220 the gray-scale intensity compensating light kept in each projection display unit 100 and with the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping constant in the case of, the brightness of the first primary lights between each projection display unit is all regulated the object brightness to these the first primary lights.

Concrete, due to the first primary lights in projection display unit 100 be Wavelength converter under the irradiation of compensatory light outgoing compensate light and under the irradiation of excitation source outgoing with the Stimulated Light sequential mixed light compensating light and existing at least some of wave band in the Stimulated Light of spectra overlapping, this luminance adjustment module 220 changed by equal proportion compensate light brightness and with compensate the brightness that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, as changed the output of compensatory light and the output of excitation source by equal proportion by the object brightness of the brightness regulation of the first primary lights in each projection display unit 100 to these the first primary lights.

In embodiments of the present invention, by luminance adjustment module 220, the brightness of the first primary lights in each projection display unit all can be regulated the object brightness to these the first primary lights, thus ensure the concordance of the brightness of the first primary lights between each projection display unit.

In an alternative embodiment of the invention, this splicing control unit 200 also includes white balance adjusting module 230.This white balance adjusting module 230 by being modulated regulating the brightness of the second primary lights of each projection display unit 100 to the output of the light source corresponding with the second primary lights in each projection display unit 100, so that the white balance of each projection display unit 100 reaches default target white balance.Wherein the second primary lights refer to remaining primary lights in addition to the first primary lights of each projection display unit.

Concrete, this white balance adjusting module 230 changes the brightness of the second primary lights by changing the electric current that drives of the light source corresponding with the second primary lights in each projection display unit 100.As when the primary lights in projection display unit 100 are exciting light, these primary lights are regulated to object brightness by this white balance adjusting module 230 by changing the brightness of this exciting light, output such as the excitation source by changing this exciting light of outgoing, i.e. change the driving electric current of the excitation source of this exciting light of outgoing, these primary lights are regulated to object brightness.

In the present embodiment, owing to when arranging object brightness, being based on what white balance was configured, therefore, by white balance adjusting module 230, the brightness of the second primary lights in each projection display unit is all regulated to object brightness, it is ensured that the white balance of each projection display unit.

Embodiment five

Figure 11 shows the structure of the splicing display device that another embodiment of the present invention provides, and this splicing display device is the improvement done on the basis of the splicing display device shown in above-described embodiment one to four.In the present embodiment, Wavelength converter includes being provided with the sectional area of the first wave length conversion layer of outgoing the first Stimulated Light under the irradiation of excitation source, also includes being provided with the sectional area of the first diffusion layer and being provided with the sectional area of the second diffusion layer.Compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband.Wherein there is spectra overlapping in the first compensation light and the first Stimulated Light, there is spectra overlapping in the second compensation light and the first Stimulated Light, and first compensate the first band light sequential in light and the first Stimulated Light and be mixed to form the three primary colours light of projection display unit, the second band light sequential in the second compensation light and the first Stimulated Light is mixed to form the four primary light of projection display unit.

This chromaticity coordinates adjustment module 210 includes the first chromaticity coordinates adjustment module 214 and the second chromaticity coordinates adjustment module 215.Wherein:

First chromaticity coordinates adjustment module 214 by being modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and the first Stimulated Light to the output of the first compensatory light in each projection display unit 100 and the output of excitation source, so that the chromaticity coordinates of the three primary colours light of each projection display unit 100 is regulated the target color coordinates to three primary colours light.

Concrete, this the first chromaticity coordinates adjustment module 214 changes the output of the first compensatory light by changing the electric current that drives of the first compensatory light in each projection display unit 100, changes the output of excitation source by changing the electric current that drives of the excitation source in each projection display unit 100.

Second chromaticity coordinates adjustment module 215 is in the case of the ratio of the output of the first compensatory light ensured in each projection display unit 100 and the output of excitation source is constant, the output of the second compensatory light in each projection display unit is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light in each projection display unit and the first Stimulated Light, so that the chromaticity coordinates of the four primary light of each projection display unit 100 is regulated the target color coordinates to four primary light.

nullIn the present embodiment，Owing to the first band light in the first Stimulated Light and the second band light in the first Stimulated Light are all associated with excitation source，After the output of excitation source being modulated to be adjusted the first band light in the first Stimulated Light by the first chromaticity coordinates adjustment module 214，In order to the ratio of the output of the output and excitation source that ensure the first compensatory light in each projection display unit 100 is constant，This second chromaticity coordinates adjustment module 215 can be in the case of the output not changing excitation source，By the output of the second compensatory light in each projection display unit 100 is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light in each projection display unit 100 and the first Stimulated Light，So that the chromaticity coordinates of the four primary light of each projection display unit 100 is regulated to target color coordinates.

Wherein luminance adjustment module 220 includes the first luminance adjustment module 221 and the second luminance adjustment module 222.Wherein:

First luminance adjustment module 221 is in the case of the ratio of the output of the first compensatory light ensured in each projection display unit 100 and the output of excitation source is constant, the output of first compensatory light regulated in each projection display unit 100 of equal proportion and the output of excitation source, with the object brightness by the brightness regulation of the three primary colours light of each projection display unit to three primary colours light.

nullConcrete，After the output of the first compensatory light in each projection display unit 100 and the output of excitation source are modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and the first Stimulated Light by the first chromaticity coordinates adjustment module 214，This first luminance adjustment module 221 is in the case of the ratio of the output of the first compensatory light ensured in each projection display unit 100 and the output of excitation source is constant，The output of first compensatory light regulated in each projection display unit 100 of equal proportion and the output of excitation source，The ratio of the first compensation light in three primary colours light and the first band light in the first Stimulated Light will not be changed，Therefore，Can be on the premise of the chromaticity coordinates not changing these primary lights，By the brightness regulation of the three primary colours light of each projection display unit to object brightness.

Second luminance adjustment module 222 is constant at the output ensureing excitation source, and in the case of ensureing that the ratio of the output of the second compensatory light in each projection display unit 100 and the output of excitation source is constant, the regulation of equal proportion second compensates the gray value that the second band light in gray value corresponding to light and the first Stimulated Light is corresponding, with the object brightness by the brightness regulation of the four primary light of each projection display unit to four primary light.

Wherein second compensating gray value corresponding to light and refer to compensate, to second, the gray value that light is modulated for controlling spatial light modulation assembly, the gray value that second band light in the first Stimulated Light is corresponding refers to for controlling the gray value that the second band light in the first Stimulated Light is modulated by spatial light modulation assembly.

nullConcrete，In the present embodiment，After the chromaticity coordinates of the three primary colours light of projection display unit being adjusted by the first chromaticity coordinates adjustment module 214，Determine the output of the first compensatory light and the ratio of the output of excitation source，After the brightness of the three primary colours light of projection display unit being adjusted by the first luminance adjustment module 221，Determine the occurrence of the output of the first compensatory light of knowing clearly and the occurrence of the output of excitation source，After the chromaticity coordinates of the four primary light of projection display unit being adjusted by the second chromaticity coordinates adjustment module 215，Determine the occurrence of the output of the second compensatory light，If now the second luminance adjustment module 222 is again by being modulated the light source of projection display unit 100，Then may affect the chromaticity coordinates of the three primary colours light regulated and brightness and the chromaticity coordinates of four primary light，Therefore，In order to avoid this problem，Second luminance adjustment module 222 is constant at the output ensureing excitation source，And in the case of ensureing that the ratio of the output of the second compensatory light in each projection display unit 100 and the output of excitation source is constant，By the gray value and the gray value being modulated the second band light in the first Stimulated Light for controlling spatial light modulation assembly that are modulated the second compensation light for controlling spatial light modulation assembly are modulated respectively，With the object brightness by the brightness regulation of the four primary light of each projection display unit 100 to four primary light.

Illustrating with a concrete example below, it is assumed that excitation source is blue light source, the first compensatory light is the red LASER Light Source of outgoing HONGGUANG R1, and the second compensatory light is the dark green LASER Light Source of outgoing viridescent light G1.Wavelength converter is as shown in Figure 6, the first wave length conversion layer i.e. arranged on one of them sectional area of this Wavelength converter is the yellow wavelengths conversion layer of outgoing gold-tinted Y under the irradiation of blue light source, and this Wavelength converter also includes being provided with the sectional area of the first diffusion layer (i.e. diffuser section in Fig. 6) and being provided with the sectional area of the second diffusion layer (i.e. B section in Fig. 6).Wherein HONGGUANG R1 and the HONGGUANG R2 sequential in gold-tinted Y are mixed to form the red primary light of projection display unit, and the green glow G2 sequential in dark green light G1 and gold-tinted Y is mixed to form the green primary light of projection display unit.

Then the first chromaticity coordinates adjustment module 214 by being modulated regulating the ratio of the gray-scale intensity of HONGGUANG R2 in the gray-scale intensity of HONGGUANG R1 and gold-tinted Y to the output of red LASER Light Source in each projection display unit 100 and the output of excitation source, so that the chromaticity coordinates of the red primary light of each projection display unit 100 is regulated the target color coordinates to red primary light.

Concrete, the gray-scale intensity of HONGGUANG R1 is equal to being incident to the brightness of HONGGUANG R1 of spatial light modulation assembly and the product for controlling the gray value that HONGGUANG R1 is modulated by spatial light modulation assembly, it is incident between the brightness of the brightness of HONGGUANG R1 of spatial light modulation assembly and HONGGUANG R1 of red LASER Light Source outgoing that there is the corresponding relation determined, therefore, the brightness of HONGGUANG R1 being incident to spatial light modulation assembly can be changed by changing the brightness of HONGGUANG R1 of red LASER Light Source outgoing, and by changing the brightness that the output of red LASER Light Source can change HONGGUANG R1 of red LASER Light Source outgoing, concrete, the output of red LASER Light Source can be changed by changing the electric current that drives of red LASER Light Source.

The gray-scale intensity of HONGGUANG R2 in gold-tinted Y is equal to the brightness of HONGGUANG R2 in the gold-tinted Y being incident to spatial light modulation assembly and for controlling the spatial light modulation assembly product to the gray value that HONGGUANG R2 in gold-tinted Y is modulated.It is incident to that there is between the brightness of HONGGUANG R2 in the gold-tinted Y of spatial light modulation assembly and the brightness of gold-tinted Y the corresponding relation determined, and the brightness of the exciting light of the brightness of gold-tinted Y and excitation source outgoing has the corresponding relation determined, therefore, the brightness of HONGGUANG R2 in the gold-tinted Y being incident to spatial light modulation assembly can be changed by changing the brightness of the exciting light of excitation source outgoing, and by changing the brightness that the output of excitation source can change the exciting light of excitation source outgoing, concrete, the output of excitation source can be changed by changing the electric current that drives of excitation source.

In the present embodiment, at the target color coordinates (X of red primary light of projection display unit 100_R, Y_R), HONGGUANG R1 (X_R1, Y_R1) and HONGGUANG R2 (X_R2, Y_R2) all known in the case of, this first chromaticity coordinates adjustment module 214 may determine that L according to formula (2)_R1And L_R2Between ratio, thus this first chromaticity coordinates adjustment module 214 is by being adjusted the output of red LASER Light Source and the output of excitation source, it is ensured that the output of red LASER Light Source and the output of excitation source after regulation make L_R1And L_R2Between ratio meet the ratio requirement that determines according to above-mentioned formula (2), the chromaticity coordinates of the red primary light in each projection display unit 100 can be regulated the target color coordinates to red primary light.

L is being determined by the first chromaticity coordinates adjustment module 214_R1And L_R2Between ratio, so that the chromaticity coordinates of the red primary light of each projection display unit is regulated after the target color coordinates of red primary light, by the first luminance adjustment module 221 in the case of the ratio of the output of the red LASER Light Source ensured in each projection display unit 100 and the output of excitation source is constant, the output of the red LASER Light Source regulated in each projection display unit 100 of equal proportion and the output of excitation source, with the object brightness by the brightness regulation of the red primary light of each projection display unit 100 to red primary light.

Concrete, in object brightness L of red primary light_RIt is known that and ensureing L_R1And L_R2Between ratio meet in the case of the ratio determined according to above-mentioned formula (2) requires, the first luminance adjustment module 221 may determine that L according to formula (2)_R1It is the first value, and L_R2When being the second value, the target color coordinates that chromaticity coordinates is red primary light of the red primary light of projection display unit 100, and the object brightness that the brightness of red primary light is red primary light can be made.Thus the first luminance adjustment module 221 changes the output of red LASER Light Source by changing the electric current that drives of red LASER Light Source, and then to make the brightness of HONGGUANG R1 be the first value.First luminance adjustment module 221 changes the output of excitation source by changing the electric current that drives of excitation source simultaneously, and then to make the brightness of HONGGUANG R2 in gold-tinted Y be the second value.

After the chromaticity coordinates of the red primary light in each projection display unit being become with brightness regulation unanimously, by the second chromaticity coordinates adjustment module 215 in the case of the output of the excitation source ensured in each projection display unit 100 is constant, the output of the dark green LASER Light Source in each projection display unit 100 is modulated regulating the ratio of the gray-scale intensity of green glow G2 in the gray-scale intensity of the dark green light G1 in each projection display unit 100 and gold-tinted Y, so that the chromaticity coordinates of the green primary light of each projection display unit 100 is regulated the target color coordinates to green primary light.

In the present embodiment, owing to the output of the excitation source in each projection display unit 100 is it is known that thus the brightness L of the green glow G2 that can obtain in each projection display unit 100 in gold-tinted Y according to the output of the excitation source in each projection display unit 100_G2, at the target color coordinates (X of the green primary light of projection display unit 100_G, Y_G), the chromaticity coordinates (X of dark green light G1_G1, Y_G1), the chromaticity coordinates (X of green glow G2_G2, Y_G2) all known in the case of, this second chromaticity coordinates adjustment module 215 may determine that L according to above-mentioned formula (3)_G1When being three values, the chromaticity coordinates of the green primary light of each projection display unit 100 can be regulated the target color coordinates to green primary light, thus this second chromaticity coordinates adjustment module 215 changes the output of dark green LASER Light Source by changing the electric current that drives of dark green LASER Light Source so that the brightness of dark green light G1 is the 3rd value.

The chromaticity coordinates of the red primary light in each projection display unit is being become consistent with brightness regulation, and after the chromaticity coordinates of the green primary light in each projection display unit is adjusted to unanimously, by the second luminance adjustment module 222 in the case of the output of the output and dark green LASER Light Source that ensure excitation source is constant, the dark green gray value corresponding for light G1 of regulation of equal proportion and the gray value corresponding for green glow G2 in gold-tinted Y, with the object brightness by the brightness regulation of the green primary light of each projection display unit 100 to green primary light.

Concrete, when the target color coordinates of the green primary light of each projection display unit 100 is adjusted by the second chromaticity coordinates adjustment module 215, dark green light G1 is all consistent with the gray value of green primary light with the gray value of the green glow G2 in gold-tinted Y, now, by the second chromaticity coordinates adjustment module 215, the gray value of the green glow G2 in dark green light G1 and gold-tinted Y is carried out the regulation of equal proportion, the ratio of the green glow G2 that will not change in the green primary light in each projection display unit 100 in dark green light G1 and gold-tinted Y, such that it is able on the premise of the chromaticity coordinates of the green primary light ensured in each projection display unit 100 is consistent, can be by the object brightness of the brightness regulation of the green primary light in each projection display unit 100 to green primary light.

Embodiment six

Figure 12 shows the structure of the splicing display device that another embodiment of the present invention provides, and this splicing display device is the improvement done on the basis of the splicing display device shown in above-described embodiment one to four.In the present embodiment, Wavelength converter includes being provided with the sectional area of the first wave length conversion layer of outgoing the first Stimulated Light under the irradiation of excitation source, also includes being provided with the sectional area of the first diffusion layer and being provided with the sectional area of the second diffusion layer.Compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband.Wherein there is spectra overlapping in the first compensation light and the first Stimulated Light, there is spectra overlapping in the second compensation light and the first Stimulated Light, and first compensate the first band light sequential in light and the first Stimulated Light and be mixed to form the three primary colours light of projection display unit, the second band light sequential in the second compensation light and the first Stimulated Light is mixed to form the four primary light of projection display unit.

This chromaticity coordinates adjustment module 210 includes tertiary color coordinate adjustment module 216 and the 4th chromaticity coordinates adjustment module 217.Wherein:

Tertiary color coordinate adjustment module 216 is modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and the first Stimulated Light by the gray value that the first band light in the gray value corresponding to the first compensation light in each projection display unit 100 and the first Stimulated Light is corresponding, so that the chromaticity coordinates of the three primary colours light of each projection display unit 100 is regulated the target color coordinates to three primary colours light, and by the object brightness of the brightness regulation of the three primary colours light of each projection display unit 100 to three primary colours light.

The gray value that wherein the first compensation light is corresponding refers to for controlling the gray value that the first compensation light is modulated by spatial light modulation assembly.The gray value that first band light in first Stimulated Light is corresponding refers to for controlling the gray value that the first band light in the first Stimulated Light is modulated by spatial light modulation assembly.

In the present embodiment, first compensatory light and excitation source are not adjusted by tertiary color coordinate adjustment module 216, but the gray value directly first in each projection display unit 100 being compensated the first band light in gray value corresponding to light and the first Stimulated Light corresponding is modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and the first Stimulated Light.

4th chromaticity coordinates adjustment module 217 is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light and the first Stimulated Light by the gray value that the second band light in the gray value corresponding to the second compensation light in each projection display unit 100 and the first Stimulated Light is corresponding, so that the chromaticity coordinates of the four primary light of each described projection display unit 100 is regulated the target color coordinates to four primary light, by the brightness regulation of the four primary light of each projection display unit 100 to four primary optical target brightness.

Wherein second compensating gray value corresponding to light and be used for controlling spatial light modulation assembly and compensate light to second and be modulated, the second band light in the first Stimulated Light is modulated by the gray value that second band light in the first Stimulated Light is corresponding for controlling spatial light modulation assembly.

Embodiment seven

Figure 13 shows the structure of the projection display unit 100 that another embodiment of the present invention provides, and this projection display unit 100 is be made improvement on the basis of shown in above-mentioned Fig. 3.This projection display unit 100 also includes the first image-forming assembly 120.This first image-forming assembly 120 includes light relay component 121, TIR prism 122, light splitting light-combining prism 123, including the first DMD 124a and the spatial light modulation assembly of the second DMD 124b and projection lens 125.Wherein light relay component 121 can include square rod, relay lens etc..Light splitting light-combining prism 123 specifically includes has spectro-film between the first prism and the second prism, and the first prism and the second prism.This spectro-film is low pass spectro-film or the logical spectro-film of band.

Wherein the light of Wavelength converter 113 outgoing is relayed to TIR prism 122 by light relay component 121, the light that light relay component 121 is relayed to by TIR prism 122 imports light splitting light-combining prism 123, the light that TIR prism 122 imports is divided into the light along the first optic path and the light along the second optic path by light splitting light-combining prism 123, light along the first optic path is modulated by the first DMD 124a, obtain the first imaging, light along the second optic path is modulated by the second DMD 124b, obtains the second imaging.Light splitting light-combining prism 123 will import projection lens 125 by TIR prism 122 after first imaging and the second imaging actinic light.

In a preferred embodiment of the invention, the excitation source 111 in this projection display unit 100 and compensatory light 112 generally select semiconductor laser, compensatory light 112 to include dark green laser instrument and red laser.

Wherein Wavelength converter 113 includes fluorescent wheel, as shown in Figure 6 above, this fluorescent wheel includes being provided with the sectional area of the first diffusion layer (diffuser), being provided with the sectional area (B section) of the second diffusion layer and be provided with the sectional area (Y section) of yellow wavelengths conversion layer in the distribution of the sectional area on fluorescent wheel.The sequential chart of the light of institute's outgoing is as shown in Figure 7 under alternately the irradiating of excitation source and compensatory light for this fluorescent wheel.Wavelength converter 113 also has driving means, such as motor etc., is used for driving fluorescent wheel to rotate.

In embodiments of the present invention, when spectro-film is low pass spectro-film, the blue light in incident light and green glow are distributed to the first DMD 124a by this light splitting light-combining prism 123, by the HONGGUANG distribution in incident light to the second DMD 124b.It is illustrated below:

Assume the sequential of light of Wavelength converter 113 outgoing of this projection display unit 100 as shown in Figure 7, then refer to Figure 14, the first DMD 124a and the light sequential chart of the second DMD 124b during the employing low pass spectro-film provided for the present embodiment.On i.e. green glow G2 in this low pass spectro-film transmission blue light B, gold-tinted Y and dark green light G1 to first DMD 124a, HONGGUANG R2 in reflection gold-tinted Y and HONGGUANG R1 that sends of red LASER Light Source are on the second DMD 124b, green glow G2 sequential in dark green light G1 and gold-tinted Y mixes and forms the green primary light of projection display unit, by changing the ratio of the green glow G2 in dark green light G1 and gold-tinted Y, the chromaticity coordinates of green primary light can be changed, the chromaticity coordinates of green primary light is zoomed near the reference color coordinate (0.265,0.69) of DCI green glow；In like manner, HONGGUANG R2 sequential in HONGGUANG R1 of red LASER Light Source outgoing and gold-tinted mixes and forms the red primary light in projection display unit, by changing the ratio of HONGGUANG R2 in HONGGUANG R1 of red LASER Light Source outgoing and gold-tinted, the chromaticity coordinates of the red primary light of projection display unit can be changed, the chromaticity coordinates of red primary light is zoomed near the reference color coordinate (0.68,0.32) of DCI HONGGUANG.

Refer to Figure 15, the first DMD 124a and the light sequential chart of the second DMD 124b when using the logical spectro-film of band provided for the present embodiment.When spectro-film is for carrying logical spectro-film, the blue light in incident light and HONGGUANG, by the green glow distribution in incident light to the first DMD 124a, are distributed to the second DMD 124b by this light splitting light-combining prism 123.It is illustrated below:

Assume the sequential of light of Wavelength converter 113 outgoing of this projection display unit 100 as it is shown in fig. 7, then refer to Figure 15, the first DMD 124a and the light sequential chart of the second DMD 124b when using the logical spectro-film of band provided for the present embodiment.This band i.e. leads on green glow G2 to the first DMD 124a that the spectro-film dark green light G1 and gold-tinted Y of reflection separates, in HONGGUANG R2 that transmission blue light B and gold-tinted Y separates and HONGGUANG R1 that red LASER Light Source sends to the second DMD 144b.

The present embodiment is so that the chromaticity coordinates of green primary light of each projection display unit is (0.265 ± 0.02,0.69 ± 0.02), the chromaticity coordinates of red primary light is (0.68 ± 0.02,0.32 ± 0.02), thus ensureing chromaticity coordinates conforming of each projection display unit while, gamut range will not be lost.

Embodiment eight

Figure 16 shows the structure of the projection display unit 100 that another embodiment of the present invention provides, and this projection display unit 100 is be made improvement on the basis of shown in above-mentioned Fig. 3.This projection display unit 100 also includes the second image-forming assembly 130.This second image-forming assembly 130 includes light relay component 131, TIR prism 132, light splitting light-combining prism 133, including the first DMD 134a, the second DMD 134b and the spatial light modulation assembly of the 3rd DMD 134c and projection lens 135.Wherein light relay component 131 can include square rod, relay lens etc..Wherein:

The light of Wavelength converter 113 outgoing is relayed to TIR prism 132 by light relay component 131, TIR prism 132 imports light into light splitting light-combining prism 133, and incident light is divided into the light along the first optic path, the light along the second optic path and the light along the 3rd optic path by light splitting light-combining prism 133.Light along the first optic path is modulated by the first DMD 134a, obtains the first imaging；Light along the second optic path is modulated by the second DMD 134b, obtains the second imaging；Light along the 3rd optic path is modulated by the 3rd DMD 134c, obtains the 3rd imaging.Light splitting light-combining prism 133 will import projection lens 135 by TIR prism 132 after first imaging, the second imaging and the 3rd imaging actinic light.

This projection display unit 100 includes excitation source 111, compensatory light 112 and Wavelength converter 113.Wherein compensatory light 112 includes dark green LASER Light Source and/or the red LASER Light Source of outgoing HONGGUANG R1 of outgoing viridescent light G1.Wherein excitation source 111 is preferably the blue light source of outgoing blue light B.The sectional area distribution example of Wavelength converter 113 as shown in figure 17, including being provided with the sectional area (the Y section as in Figure 17) of yellow wavelengths conversion layer and being provided with the sectional area (the diffuser section as in Figure 17) of the first diffusion layer.The sectional area distribution of this Wavelength converter 113, the sequential of the light of institute's outgoing is as shown in figure 18 under alternately the irradiating of excitation source 111 and compensatory light 112 for cut-off sequential and this Wavelength converter of excitation source and compensatory light.Refer to Figure 19, the first DMD 134a, the second DMD 134b and the light sequential chart of the 3rd DMD 134c after light splitting light-combining prism 133 light splitting provided for the embodiment of the present invention.Wherein HONGGUANG R1 and HONGGUANG R2 sequential are mixed to form the red primary light of projection display unit, and dark green light G1 and green glow G2 sequential are mixed to form the green primary light of projection display unit.

The present embodiment can make the chromaticity coordinates of the green primary light of each projection display unit be (0.265 ± 0.02,0.69 ± 0.02), and the chromaticity coordinates of red primary light is (0.68 ± 0.02,0.32 ± 0.02).

Embodiment nine

The tiled display control method of the splicing display device provided based on the embodiment of the present invention that Figure 20 shows that the embodiment of the present invention provides realize flow process, details are as follows:

S101, the chromaticity coordinates detecting each primary lights in each projection display unit and/or brightness.

S102, same base coloured light between each projection display unit chromaticity coordinates inconsistent time, set the target color coordinates of same base coloured light between each described projection display unit, and/or the brightness of the same base coloured light between each projection display unit inconsistent time, set the object brightness of same base coloured light between each projection display unit.Wherein the detailed process of target setting chromaticity coordinates and object brightness is not as it appears from the above, repeat them here.

S103, by being adjusted to the gray-scale intensity compensating light in each projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping, all regulate to target color coordinates with the chromaticity coordinates by the first primary lights of each projection display unit.

Wherein the first primary lights refer to compensate in projection display unit light and mix with the Stimulated Light sequential compensating light and existing at least some of wave band in the Stimulated Light of spectra overlapping and the primary lights that formed.

Preferably, by being adjusted specifically including to the gray-scale intensity compensating light in each projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping:

The output of the compensatory light in each projection display unit and the output of excitation source are modulated respectively, with regulate the gray-scale intensity compensating light in projection display unit and with compensate the ratio of gray-scale intensity that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping.

Concrete, it is modulated respectively specifically including to the output of the compensatory light in each projection display unit and the output of excitation source:

On the premise of meeting above-mentioned formula (1), the output of compensatory light in each described projection display unit and the output of excitation source are modulated respectively

The first gray value in each projection display unit and the second gray value are modulated respectively, with regulate the gray-scale intensity compensating light in projection display unit and with compensate the ratio of gray-scale intensity that light exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping；

Wherein the first gray value is used for controlling spatial light modulation assembly and is modulated described compensation light, and the second gray value exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping and is modulated for controlling spatial light modulation assembly pair and compensation light.

Concrete, it is modulated respectively specifically including to the first gray value in each projection display unit and the second gray value:

On the premise of meeting above-mentioned formula (4), the first gray value in each projection display unit and the second gray value are modulated respectively.

Compensatory light in each projection display unit and the output of excitation source and the first gray value and the second gray value are modulated respectively, to regulate the gray-scale intensity compensating light in projection display unit and the ratio of the gray-scale intensity with the Stimulated Light of at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping；Wherein the first gray value is used for controlling spatial light modulation assembly and is modulated described compensation light, and the second gray value exists the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping and is modulated for controlling spatial light modulation assembly pair and compensation light.

In an alternative embodiment of the invention, the method also includes:

The gray-scale intensity compensating light kept in each projection display unit and with the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping constant in the case of, by the object brightness of the brightness regulation of the first primary lights between each projection display unit to the first primary lights.

During in the present invention, another is implemented, the wavelength conversion layer arranged on Wavelength converter is included in the first wave length conversion layer irradiating lower outgoing the first Stimulated Light of excitation source, compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband, wherein:

There is spectra overlapping in the first compensation light and the first Stimulated Light, there is spectra overlapping in the second compensation light and the first Stimulated Light, and first compensate the first band light sequential in light and the first Stimulated Light and be mixed to form the three primary colours light of projection display unit, the second band light sequential in the second compensation light and the first Stimulated Light is mixed to form the four primary light of projection display unit.Now, by being adjusted specifically including to the gray-scale intensity compensating light in each projection display unit with the ratio of gray-scale intensity compensating the Stimulated Light that light exists at least some of wave band in the Stimulated Light of spectra overlapping:

By the output of the first compensatory light in each projection display unit and the output of described excitation source are modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and described first Stimulated Light, so that the chromaticity coordinates of the described three primary colours light of each projection display unit is regulated the target color coordinates to three primary colours light；

In the case of the ratio of the output of the first compensatory light ensured in each projection display unit and the output of excitation source is constant, the output of the second compensatory light in each projection display unit is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light in each projection display unit and described first Stimulated Light, so that the chromaticity coordinates of the four primary light of each projection display unit is regulated the target color coordinates to four primary light.

Further, the gray-scale intensity compensating light kept in each projection display unit and with the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the Stimulated Light compensating light and existing spectra overlapping constant in the case of, the object brightness of the brightness regulation of the first primary lights between each projection display unit to the first primary lights is specifically included:

In the case of the ratio of the output of the first compensatory light ensured in each projection display unit and the output of excitation source is constant, the output of first compensatory light regulated in each projection display unit of equal proportion and the output of excitation source, with the object brightness by the brightness regulation of the three primary colours light of each projection display unit to three primary colours light；

Constant at the output ensureing excitation source, and in the case of ensureing that the ratio of the output of the second compensatory light in each projection display unit and the output of excitation source is constant, the regulation of equal proportion second compensates the gray value that the second band light in gray value corresponding to light and the first Stimulated Light is corresponding, with the object brightness by the brightness regulation of the four primary light of each projection display unit to four primary light；

In an alternative embodiment of the invention, during in the present invention, another is implemented, the wavelength conversion layer arranged on Wavelength converter is included in the first wave length conversion layer irradiating lower outgoing the first Stimulated Light of excitation source, compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband, wherein:

The gray value corresponding by the first band light in the gray value corresponding to the first compensation light in each projection display unit and the first Stimulated Light is modulated regulating the ratio of the gray-scale intensity of the first band light in the gray-scale intensity of the first compensation light and the first Stimulated Light, so that the chromaticity coordinates of the three primary colours light of each projection display unit is regulated the target color coordinates to three primary colours light, by the object brightness of the brightness regulation of the three primary colours light of each projection display unit to three primary colours light；

The gray value corresponding by the second band light in the gray value corresponding to the second compensation light in each projection display unit and the first Stimulated Light is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light and the first Stimulated Light, so that the chromaticity coordinates of the four primary light of each projection display unit is regulated the target color coordinates to four primary light, by the object brightness of the brightness regulation of the four primary light of each projection display unit to four primary light.

In an alternative embodiment of the invention, the method also includes:

By the output of the light source corresponding with the second primary lights in each projection display unit is modulated regulating the brightness of the second primary lights of each projection display unit, so that the white balance of each projection display unit reaches default target white balance；Wherein the second primary lights refer to remaining primary lights in addition to the first primary lights of each described projection display unit.

The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or directly, be indirectly used in other relevant technical fields, is accordingly to be regarded as being included in the scope of patent protection of the present invention.

Claims

1. a splicing display device, including at least one projection display unit, it is characterised in that described splicing display device also includes splicing control unit, wherein:

2. splicing display device as claimed in claim 1, it is characterised in that described splicing display device also includes:

3. splicing display device as claimed in claim 1, it is characterised in that described chromaticity coordinates adjustment module includes:

4. splicing display device as claimed in claim 3, it is characterised in that described light source adjusting part is specifically for being modulated respectively the output of compensatory light in each described projection display unit and the output of excitation source according to following requirement:

L_M=L_M1+L_M2

Wherein L_MFor the brightness of described first primary lights, L_M1For the brightness of described compensation light, L_M2For there is the brightness of the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, (X with described compensation light_M, Y_M) it is the target color coordinates of described first primary lights, (X_M1, Y_M1) it is the chromaticity coordinates of described compensation light, (X_M2, Y_M2) for there is the chromaticity coordinates of the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping with described compensation light.

5. splicing display device as claimed in claim 2, it is characterised in that described chromaticity coordinates adjustment module includes:

6. splicing display device as claimed in claim 5, it is characterised in that described gray scale adjusting part is specifically for being modulated respectively the first gray value in each described projection display unit and the second gray value according to following requirement:

Wherein L_MFor the brightness of described first primary lights, L_M1For the brightness of described compensation light, L_M2For there is the brightness of the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, (X with described compensation light_M, Y_M) it is the target color coordinates of described first primary lights, (X_M1, Y_M1) it is the chromaticity coordinates of described compensation light, (X_M2, Y_M2) for there is the chromaticity coordinates of the Stimulated Light of at least some of wave band in the Stimulated Light of spectra overlapping, described S with described compensation light_MFor the gray value corresponding with described first primary lights, described S_M1For described first gray value, described S_M2For described second gray value.

7. splicing display device as claimed in claim 2, it is characterised in that described chromaticity coordinates adjustment module includes:

8. the splicing display device as described in any one of claim 1 to 7, it is characterised in that described splicing control unit also includes:

9. splicing display device as claimed in claim 8, it is characterised in that

Described Wavelength converter is peripherally disposed at least two sectional area, at least one sectional area in described at least two sectional area is provided with the first diffusion layer, and at least one sectional area in remaining segment region in described at least two sectional area is provided with wavelength conversion layer.

10. splicing display device as claimed in claim 9, it is characterised in that described first diffusion layer is to implement roughening optical treatment on the surface of Wavelength converter and formed.

11. splicing display devices as claimed in claim 9, it is characterised in that at least one sectional area in described at least two sectional area is provided with the second diffusion layer.

12. splicing display devices as claimed in claim 11, it is characterised in that described second diffusion layer is to bring the optical material of spreading effect to be formed in the surface configuration of Wavelength converter.

13. splicing display devices as claimed in claim 11, it is characterised in that described Wavelength converter is transmission-type Wavelength converter, reflective Wavelength converter, or comprises the Wavelength converter of transmissive portion and reflecting part.

14. splicing display devices as claimed in claim 13, it is characterized in that, when described Wavelength converter is the Wavelength converter comprising transmissive portion and reflecting part, the sectional area being provided with described first diffusion layer is positioned at the transmissive portion of described Wavelength converter.

15. splicing display devices as described in any one of claim 9 to 14, it is characterized in that, described wavelength conversion layer is included in the first wave length conversion layer irradiating lower outgoing the first Stimulated Light of described excitation source, described compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband, wherein:

16. splicing display devices as claimed in claim 15, it is characterised in that described chromaticity coordinates adjustment module includes:

17. splicing display devices as claimed in claim 16, it is characterised in that described luminance adjustment module includes:

18. splicing display devices as claimed in claim 15, it is characterised in that described chromaticity coordinates adjustment module includes:

Tertiary color coordinate adjustment module, it is modulated regulating the ratio of the gray-scale intensity of the first band light in the described first gray-scale intensity compensating light and described first Stimulated Light for the gray value corresponding by the first band light in the gray value corresponding to the first compensation light in each described projection display unit and the first Stimulated Light, so that the chromaticity coordinates of the three primary colours light of each described projection display unit is regulated the target color coordinates to described three primary colours light, by the object brightness of the brightness regulation of the three primary colours light of each described projection display unit to described three primary colours light；

4th chromaticity coordinates adjustment module, it is modulated regulating the ratio of the gray-scale intensity of the second band light in the described second gray-scale intensity compensating light and described first Stimulated Light for the gray value corresponding by the second band light in the gray value corresponding to the second compensation light in each described projection display unit and the first Stimulated Light, so that the chromaticity coordinates of the four primary light of each described projection display unit is regulated the target color coordinates to described four primary light, by the object brightness of the brightness regulation of the four primary light of each described projection display unit to described four primary light.

19. splicing display devices as described in any one of claim 15 to 18, it is characterised in that described splicing control unit also includes:

20. splicing display devices as claimed in claim 19, it is characterised in that described first wave length conversion layer is yellow wavelengths conversion layer.

21. splicing display devices as claimed in claim 20, it is characterised in that described first compensatory light is red LASER Light Source, described second compensatory light is dark green LASER Light Source.

22. splicing display devices as claimed in claim 21, it is characterized in that, described red LASER Light Source and described dark green LASER Light Source are all opened when the sectional area being provided with the first diffusion layer of described Wavelength converter is positioned at the transmission path of described exciting light, close at remaining sectional area of Wavelength converter remaining described；

Described excitation source is opened when the sectional area being provided with wavelength conversion layer of described Wavelength converter is positioned at the transmission path of described exciting light, closes at remaining sectional area of Wavelength converter remaining described.

23. splicing display devices as described in any one of claim 1 to 7, it is characterised in that described projection display unit also includes:

First image-forming assembly, described first image-forming assembly includes that TIR prism, light splitting light-combining prism, spatial light modulation assembly and projection lens, described spatial light modulation assembly include the first DMD and the second DMD；

The light of described Wavelength converter outgoing is divided into the light along the first optic path and the light along the second optic path by described light splitting light-combining prism；

Described first DMD, for being modulated the described light along the first optic path, obtains the first imaging；

Described second DMD, for being modulated the described light along the second optic path, obtains the second imaging；

Described light splitting light-combining prism will import described projection lens by described TIR prism after described first imaging and described second imaging actinic light.

24. splicing display devices as described in any one of claim 1 to 7, it is characterised in that described projection display unit also includes:

3rd image-forming assembly, described 3rd image-forming assembly includes that TIR prism, light splitting light-combining prism, spatial light modulation assembly and projection lens, described spatial light modulation assembly include the first DMD, the second DMD, the 3rd DMD；

The light of described Wavelength converter outgoing is divided into the light along the first optic path, the light along the second optic path and the light along the 3rd optic path by described light splitting light-combining prism；

Described 3rd DMD, for being modulated the described light along the 3rd optic path, obtains the 3rd imaging；

Described light splitting light-combining prism will import described projection lens by described TIR prism after described first imaging, described second imaging and described 3rd imaging actinic light.

25. 1 kinds of tiled display control methods based on the splicing display device described in any one of claim 1 to 24, it is characterised in that described method includes:

26. tiled display control methods as claimed in claim 25, it is characterised in that described method also includes:

Detect chromaticity coordinates and/or the brightness of each primary lights in each described projection display unit；

When the chromaticity coordinates of the same base coloured light between each described projection display unit is inconsistent, set the target color coordinates of same base coloured light between each described projection display unit, and/or the brightness of the same base coloured light between each described projection display unit inconsistent time, set the object brightness of same base coloured light between each described projection display unit.

27. tiled display control methods as claimed in claim 25, it is characterized in that, described by being adjusted specifically including to the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light:

The output of compensatory light in each described projection display unit and the output of excitation source are modulated respectively, with the gray-scale intensity compensating light regulated in described projection display unit and the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light.

28. tiled display control methods as claimed in claim 27, it is characterised in that described be modulated respectively specifically including to the output of the compensatory light in each described projection display unit and the output of excitation source:

On the premise of meeting following formula, the output of compensatory light in each described projection display unit and the output of excitation source are modulated respectively:

L_M=L_M1+L_M2

29. tiled display control methods as claimed in claim 25, it is characterized in that, described by being adjusted specifically including to the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light:

The first gray value in each described projection display unit and the second gray value are modulated respectively, with the gray-scale intensity compensating light regulated in described projection display unit and the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light；

30. tiled display control methods as claimed in claim 29, it is characterised in that described be modulated respectively specifically including to the first gray value in each described projection display unit and the second gray value:

On the premise of meeting following formula, the first gray value in each described projection display unit and the second gray value are modulated respectively:

31. tiled display control methods as claimed in claim 25, it is characterized in that, described by being adjusted specifically including to the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light:

Compensatory light in each described projection display unit and the output of excitation source and the first gray value and the second gray value are modulated respectively, with the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity compensating light regulated in described projection display unit and the Stimulated Light that there is spectra overlapping with described compensation light；

The 32. tiled display control methods as described in any one of claim 25 to 31, it is characterised in that described method also includes:

In the case of the ratio of the gray-scale intensity of the Stimulated Light of at least some of wave band in the gray-scale intensity compensating light kept in each described projection display unit and the Stimulated Light that there is spectra overlapping with described compensation light is constant, by the object brightness of the brightness regulation of the first primary lights between each described projection display unit to described first primary lights.

33. tiled display control methods as claimed in claim 32, it is characterized in that, described wavelength conversion layer is included in the first wave length conversion layer irradiating lower outgoing the first Stimulated Light of described excitation source, described compensatory light includes that outgoing first compensates the first compensatory light of light and outgoing and compensates, with first, the second compensatory light that light has the second compensation light of different-waveband, wherein:

34. tiled display control methods as claimed in claim 33, it is characterized in that, described by being adjusted specifically including to the ratio of the gray-scale intensity compensating light in each described projection display unit and the gray-scale intensity of the Stimulated Light of at least some of wave band in there is the Stimulated Light of spectra overlapping with described compensation light:

By the output of the first compensatory light in each described projection display unit and the output of described excitation source are modulated regulating the ratio of the gray-scale intensity of the first band light in the described first gray-scale intensity compensating light and described first Stimulated Light, so that the chromaticity coordinates of the described three primary colours light of each described projection display unit is regulated the target color coordinates to described three primary colours light；

In the case of the ratio of the output of the first compensatory light ensured in each described projection display unit and the output of excitation source is constant, the output of the second compensatory light in each described projection display unit is modulated regulating the ratio of the gray-scale intensity of the second band light in the gray-scale intensity of the second compensation light in each described projection display unit and described first Stimulated Light, so that the chromaticity coordinates of the described four primary light of each described projection display unit is regulated the target color coordinates to described four primary light.

35. tiled display control methods as claimed in claim 34, it is characterized in that, in the case of the ratio of the gray-scale intensity of the Stimulated Light of described at least some of wave band in the gray-scale intensity compensating light kept in each described projection display unit and the Stimulated Light that there is spectra overlapping with described compensation light is constant, the object brightness of the brightness regulation of the first primary lights between each described projection display unit to described first primary lights is specifically included:

In the case of the ratio of the output of the first compensatory light ensured in each described projection display unit and the output of excitation source is constant, the output of first compensatory light regulated in each described projection display unit of equal proportion and the output of excitation source, with the object brightness by the brightness regulation of the three primary colours light of each described projection display unit to three primary colours light；

Constant at the output ensureing excitation source, and in the case of ensureing that the ratio of the output of the second compensatory light in each described projection display unit and the output of described excitation source is constant, the regulation described second of equal proportion compensates the gray value that gray value corresponding to light is corresponding with the second band light in described first Stimulated Light, with the object brightness by the brightness regulation of the four primary light of each described projection display unit to four primary light；