WO2020125300A1 - 色轮、光源系统及显示设备 - Google Patents

色轮、光源系统及显示设备 Download PDF

Info

Publication number
WO2020125300A1
WO2020125300A1 PCT/CN2019/119135 CN2019119135W WO2020125300A1 WO 2020125300 A1 WO2020125300 A1 WO 2020125300A1 CN 2019119135 W CN2019119135 W CN 2019119135W WO 2020125300 A1 WO2020125300 A1 WO 2020125300A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
filter layer
color wheel
color
layer
Prior art date
Application number
PCT/CN2019/119135
Other languages
English (en)
French (fr)
Inventor
戴达炎
周浩
宋霞
李屹
Original Assignee
深圳光峰科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Priority to US17/415,459 priority Critical patent/US20220075177A1/en
Publication of WO2020125300A1 publication Critical patent/WO2020125300A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3158—Modulator illumination systems for controlling the spectrum
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • G03B33/08—Sequential recording or projection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements

Definitions

  • the invention relates to the field of display technology, in particular to a color wheel, a light source system and a display device.
  • the laser fluorescent light source 100 needs to generate red, green, blue or more colors of fluorescence.
  • the usual method is to apply different phosphors on the color wheel, and the excitation light source 110 generates excitation light.
  • the conversion layer 183 provided with phosphors on the color wheel 180 excites the fluorescence, and the different colors of fluorescence emitted in time series are generated by the rotation of the driving motor.
  • the filter 185 needs to be used to filter the fluorescence.
  • the commonly used method is to add a filter 185 on the inside or outside of the fluorescent wheel. It is generally designed as a circle of color wheel rings. It can only be designed according to the needs of a color gamut. This system can only emit one color. The primary color light required by the gamut cannot meet the requirements of the multi-gamut gamut, and the application is limited.
  • An aspect of the present invention provides a color wheel, including a substrate, and the substrate disposed on the substrate:
  • the conversion layer is used to convert the wavelength of incident light and obtain the laser beam
  • a first filter layer for filtering the received laser light to obtain first light for modulating images in the first color gamut
  • a second filter layer for filtering the received laser light to obtain second light for modulating images in the second color gamut
  • the light incident surface of the conversion layer, the light incident surface of the first filter layer and the surface where the light incident surface of the second filter layer are respectively located are parallel or coincide with each other.
  • the second color gamut range covers the first color gamut range and has a portion that exceeds the first color gamut range.
  • the first filter layer and the second filter layer each include a plurality of sections, and each section is used to filter a color of the received laser light to obtain the corresponding color of the first light or Second light
  • the bandwidths of the pass rate curves of the sections in the first filter layer and the sections in the second filter layer used to filter the same color of the received laser light are the first bandwidth and the second Bandwidth, the first bandwidth is wider than the second bandwidth.
  • a reflective layer for reflecting light is provided between the conversion layer and the substrate.
  • the substrate has a ring shape and includes:
  • the top surface is provided with the conversion layer and the reflection layer;
  • An inner side wall and an outer side wall connected to the top surface, the inner side wall and the outer side wall are disposed oppositely.
  • first filter layer and the second filter layer respectively include a first section for filtering the first color light in the laser light, the first filter layer The first section of is different from the center angle occupied by the first section of the second filter layer.
  • the first filter layer is disposed in a region surrounded by the inner sidewall of the substrate, and the second filter layer is disposed on the periphery of the outer sidewall of the substrate.
  • the color wheel further includes:
  • the driving unit is disposed on the surface of the first filter layer facing away from the conversion layer, and is used to drive the color wheel to rotate periodically.
  • the conversion layer includes:
  • the first conversion layer is used to emit a first received laser light, and the first received laser light is filtered by the first filter layer to obtain the first light;
  • the second conversion layer is used to emit a second received laser light, and the second received laser light is filtered by the second filter layer to obtain the second light.
  • first conversion layer is disposed adjacent to the first filter layer relative to the second conversion layer.
  • both the first conversion layer and the second conversion layer include a first section for emitting first colored light, and the first conversion layer and the first section of the first filter layer The central angles occupied are equal, and the central angles occupied by the second conversion layer and the first section of the second filter layer are equal.
  • center angles occupied by the first conversion layer and the first section of the first filter layer are arranged symmetrically along the geometric center of the substrate, and the second conversion layer and the second filter The central angle occupied by the first section of the layer is arranged symmetrically along the geometric center of the substrate.
  • a second aspect of the present invention provides a light source system, including:
  • Excitation light source used to emit excitation light
  • the color wheel is the color wheel as described above, the excitation light is irradiated onto the conversion layer and the laser beam is obtained;
  • the reflecting mirror is used to move to the first position or the second position according to the movement signal.
  • the laser light is guided to enter the first filter layer and the first A light
  • the reflecting mirror is located at the second position, guide the received laser light to enter the second filter layer and obtain the second light.
  • a third aspect of the present invention provides a light source system, including:
  • Excitation light source used to emit excitation light
  • the color wheel is the color wheel as described above, the excitation light is irradiated onto the conversion layer and the laser beam is obtained;
  • a guide assembly for guiding the incident laser light to the first filter layer or the second filter layer
  • the color wheel also moves to a first position or a second position according to the movement signal, and when the color wheel is at the first position, the guide assembly guides the laser light incident on the first filter layer and When the first light is obtained, when the color wheel is at the second position, the guide assembly guides the laser light to enter the second filter layer and obtains the second light.
  • the light source system further includes a supplementary light source for emitting supplementary light, and the supplementary light is emitted from the light source system along the same optical path as the first light and the second light.
  • a fourth aspect of the present invention provides a light source system, including:
  • Excitation light source used to emit excitation light
  • a guide assembly for guiding the excitation light to irradiate the conversion layer and directing the laser light to enter the first filter layer or the second filter layer;
  • the color wheel also moves to the first position or the second position according to the movement signal
  • the guide assembly guides the excitation light to irradiate the first conversion layer to obtain the first received laser light, and guides the first received laser light to enter The first filter layer and obtain the first light;
  • the guide assembly guides the excitation light to irradiate the second conversion layer to obtain the second received laser light, and guides the second received laser light to enter The second filter layer obtains the second light.
  • a fifth aspect of the present invention provides a display device, including:
  • the control device is used to send a movement signal according to the trigger signal, and to send a modulation signal according to the image data of the image to be displayed in each frame;
  • the light source system is any one of the above light source systems for emitting the first light or the second light according to the movement signal;
  • the light modulation device is configured to modulate the first light or the second light according to the modulation signal to obtain image light of an image to be displayed.
  • the color wheel provided by the present invention can filter the received laser light to obtain primary color light output that meets the requirements of two color gamuts, thereby facilitating the light source system to flexibly control the color wheel output according to the color gamut information of each frame of the image to be displayed It is used to modulate the primary color light of different color gamuts, so as to achieve different viewing effects, and greatly enhance the customer experience.
  • FIG. 1 is a schematic structural diagram of a laser fluorescent light source in the prior art.
  • FIG. 2 is a schematic structural diagram of a display device provided by a preferred embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of the light source system and the control device shown in FIG. 2 in the first embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of the color wheel shown in FIG. 3.
  • FIG. 5 is a schematic structural diagram of the light source system and the control device shown in FIG. 2 in the second embodiment of the present invention, in which the color wheel is located at the first position.
  • FIG. 6 is a schematic structural diagram of the light source system and the control device when the color wheel shown in FIG. 5 is located at the second position.
  • FIG. 7 is a schematic structural view of the color wheel shown in FIG. 5.
  • FIG. 8 is a schematic structural view of the light source system and control device shown in FIG. 2 in a third embodiment, in which the color wheel is located at the first position.
  • FIG. 9 is a schematic structural view of the light source system and the control device when the color wheel shown in FIG. 8 is located at the second position.
  • FIG. 10 is a schematic structural diagram of the color wheel shown in FIG. 8.
  • FIG. 11 is a schematic structural diagram of the light source system and the control device shown in FIG. 2 in the fourth embodiment of the present invention, in which the color wheel is located at the first position.
  • Light source system 200 300, 400, 500
  • the first conversion layer 483a The first conversion layer 483a
  • the second conversion layer 483b is the second conversion layer 483b
  • Optical modulation device 900 Optical modulation device 900
  • the present invention provides a color wheel that can emit light for modulating images of two color gamuts.
  • the color wheel provided by the present invention can be used in a light source system of a display device.
  • the display device 20 includes a light source system 200, a control device 800 and a light modulation device 900.
  • the control device 800 is used to send a movement signal according to the trigger signal, and is used to send a modulation signal according to the image data of each frame of the image to be displayed;
  • the light source system 200 is used to control the color wheel 280 according to the movement signal to be used to modulate the first The first light of the color gamut range image or the second light used to modulate the second color gamut range image;
  • the light modulation device 900 is used to modulate the first light or the second light according to the modulation signal to obtain the image light of the image to be displayed .
  • the light source system 200 including the color wheel 280 can emit light (primary color light) for modulating different color gamuts according to the color gamut information of each frame of the image to be displayed, thereby enabling the display device 20 to realize different viewing images according to image data of different color gamuts Effect, greatly enhancing the customer experience.
  • the control device 800 is used to send a movement signal according to the trigger signal;
  • the light source system 200 includes an excitation light source 210, a reflecting mirror 265 and a color wheel 280.
  • the excitation light source 210 is used to emit excitation light, and the excitation light is irradiated to the conversion layer 283 on the color wheel 280 to obtain the received laser light;
  • the reflection mirror 265 is used to move to the first position M or the second position N according to the movement signal.
  • the reflecting mirror 265 is located at the first position M, the received laser light is guided to the first filter layer 285 to obtain the first light, and when the reflecting mirror 265 is located at the second position N, the laser light is guided to the second filter layer 286 And get the second light.
  • the excitation light source 210 may be a blue light source, which emits blue excitation light. It can be understood that the excitation light source 210 is not limited to a blue light source, and the excitation light source 210 may also be a purple light source.
  • the luminous body in the excitation light source 210 is a blue laser, which emits blue laser light as excitation light. In other embodiments, the light emitting body in the excitation light source 210 is a blue light emitting diode. It can be understood that the excitation light source 210 may include one or two lasers or laser arrays, and the number of lasers may be selected according to actual needs.
  • the excitation light source 210 further includes a uniform light device to uniformly illuminate the excitation light.
  • the uniform light device may be an optical integrating rod or a double fly-eye lens. It can be understood that the uniform light device is not necessary, especially in a miniaturized light source system.
  • the color wheel 280 includes a substrate 281, and a conversion layer 283, a first filter layer 285, and a second filter layer 286 disposed on the substrate 281.
  • the conversion layer 283 is used to convert the wavelength of the incident light and obtain the received laser;
  • the first filter layer 285 is used to filter the received laser to obtain the first light used to modulate the image in the first color gamut.
  • the second filter layer 286 is used to filter the received laser light to obtain second light for modulating the image in the second color gamut.
  • the planes where the light incident surface of the first filter layer 285 and the light incident surface of the second filter layer 286 are coincident that is, the light incident surface of the first filter layer 285 and the second filter layer 286
  • the light incident surface of is located on the same plane, and the plane of the light incident surface of the conversion layer 283 and the plane of the light incident surface of the first filter layer 285 are parallel to each other.
  • the color wheel 280 provided by the present invention can filter the received laser light to obtain the primary color light output that meets the requirements of the two color gamuts, thereby facilitating the display device 20 to flexibly control the color wheel 280 for use according to the color gamut information of each frame of the image to be displayed It is used to modulate the primary colors of different color gamuts, so as to achieve different viewing effects, and greatly enhance the customer experience.
  • a reflective layer 282 for reflecting light is further provided between the conversion layer 283 and the substrate 281.
  • the reflective layer 282 may be a reflective film or a metal reflective material.
  • the reflective layer 282 may be omitted, that is, the color wheel 280 is used to transmit laser light and scattered excitation light.
  • the substrate 281 has a ring shape and includes a top surface 281a, an inner side wall 281b, and an outer side wall 281c.
  • the inner side wall 281b and the outer side wall 281c are respectively connected to the top surface 281a.
  • the inner side wall 281b is opposite to the outer side wall 281c, and the inner side wall 281b is adjacent to the geometric center of the substrate 281 relative to the outer side wall 281c.
  • the top surface 281a is provided with a conversion layer 283 and a reflective layer 282; the first filter layer 285 is connected to the inner sidewall 281b of the substrate 281, and is disposed in the area surrounded by the inner wall 281b, and the second filter layer 286 is connected to The outer wall 281c of the substrate 281 is provided on the outer periphery of the outer wall 281c.
  • the conversion layer 283 is provided with a wavelength conversion material to perform wavelength conversion on the excitation light with a shorter incident wavelength to obtain laser light of other colors with a longer wavelength.
  • the wavelength conversion material may be selected from phosphors, quantum dots or phosphorescent materials, etc. .
  • the conversion layer 283 includes a first section R, a second section G, a third section Y, and a fourth section B.
  • the first section R is provided with a first color wavelength conversion material to generate a first color receiving laser light under the excitation of excitation light
  • the second section G is provided with a second color wavelength conversion material to generate an excitation light under excitation
  • the third section Y is provided with a third color wavelength conversion material to generate a third color receiving laser under the excitation of the excitation light
  • the fourth section B is provided due to the scattering material to scatter the excitation light
  • the first, second, third and fourth colors are red, green, yellow and blue, respectively.
  • the first, second, third and third colors The four colors can be other colors, for example, it is feasible to use an orange phosphor instead of a yellow phosphor to generate orange laser light, or omit the third section Y.
  • Each of the first filter layer 285 and the second filter layer 286 is provided with a plurality of sections corresponding to the output color light of each section of the conversion layer 283.
  • the first filter layer 285 includes a first section R1, a second section G1, a third section Y1, and a fourth section B1, which are used for the red light emitted from the conversion layer 283, Green light, yellow light and blue light are filtered.
  • the second filter layer 286 includes a first section R2, a second section G2, a third section Y2, and a fourth section B2, respectively for the red light, green light, yellow light and blue light emitted from the conversion layer 283 Colored light is filtered.
  • both the fourth section B1 and the fourth section B2 are provided with scattering materials to scatter the incident blue excitation light to alleviate the laser speckle phenomenon.
  • Each section in the first filter layer 285 and the second filter layer 286 is provided with a filter of corresponding color, wherein the filter in the first filter layer 285 is used to filter the received laser light
  • the first light of the first color gamut image is modulated
  • the filter in the second filter layer 286 is used to filter the received laser light to obtain the second light used to modulate the second color gamut image.
  • the first color gamut range is different from the second color gamut range.
  • the second color gamut range covers the first color gamut range and has a portion that exceeds the first color gamut range.
  • the first color gamut range may be Rec.
  • the second color gamut range can be the DCI-P3 standard color gamut, with more red and green ranges, almost completely covering the Rec.709 standard.
  • the more colors that can be displayed this means that its color expression ability is stronger, and the DCI-P3 standard is completely higher than the Rec.709 standard.
  • the segment in the first filter layer and the segment in the second filter layer used to filter the same color laser light The bandwidths of the pass rate curve are the first bandwidth and the second bandwidth, respectively.
  • the first bandwidth is wider than the second bandwidth.
  • the first section R1 and the first section R2 are used to filter the red received laser light and emit red light in the first color gamut range and the second color gamut range, respectively.
  • a light covers a relatively small color gamut, and the bandwidth of the pass rate curve of the filter set in the first section R1 is relatively wide; the red first light emitted from the first section R2 covers a relatively large color gamut.
  • the bandwidth of the pass rate curve of the filter provided in a section R2 is relatively narrow to emit the red first light with relatively high color purity.
  • the passing rate curve of the filter set in the color section corresponding to the first filter layer 285 and the second filter layer 286 is also different, and can be flexibly selected according to the requirements of different color gamuts.
  • the ratio of light amounts of different colors required is different, so the corresponding color sections in the first filter layer 285 and the second filter layer 286 are located in the color wheel 280
  • the center angles occupied are not equal.
  • the center angles occupied by the first section R1 and the first section R2 are not equal, and the center angles occupied by the first section R2 are relatively large, that is, the second color gamut standard requires increased red light proportion.
  • the exit ratio of the light of other colors can also be flexibly set according to the requirements of different color gamut standards for the center angles occupied by the respective sections of the first filter layer 285 and the second filter layer 286.
  • the color wheel 280 further includes a driving unit 289, which is disposed on the surface of the first filter layer 285 facing away from the conversion layer 283, and is used to drive the color wheel 280 to periodically rotate.
  • the driving unit 289 Can be a motor.
  • the light source system 200 includes a guide assembly 260, and the guide assembly 260 includes an optical device that guides the excitation light onto the conversion layer 283, such as a relay lens, and the like, and guides the incident laser light to the first filter layer 285 or The reflection mirror 265 of the second filter layer 286 transmits the scattered excitation light and the received laser light along the same optical path.
  • the mirror 265 is slidingly mounted on a track, and the control device 800 controls the mirror 265 to slide on the track to the first position M or the second position N. It can be understood that the received laser light may also enter the reflecting mirror 265 through other reflecting mirrors or beam splitting and combining elements.
  • the first filter layer 285 and the second filter layer 286 are disposed on the same plane, thereby ensuring that the external optical path of the color wheel 280 can be shared, simplifying the internal optical path design of the light source system 200, and reducing the introduction of optical devices.
  • the first filter layer 285 and the second filter layer 286 may be disposed on different planes.
  • the planes of the first filter layer 285 and the second filter layer 286 are parallel to each other.
  • the light source system 200 further includes a light homogenizing device 290, which is disposed on the side of the color wheel 280 facing away from the excitation light source 210, and is used to perform light uniformity on the light emitted by the first filter layer 285 and the second filter layer 286 to improve the light source system Uniformity of 200 outgoing light.
  • a light homogenizing device 290 which is disposed on the side of the color wheel 280 facing away from the excitation light source 210, and is used to perform light uniformity on the light emitted by the first filter layer 285 and the second filter layer 286 to improve the light source system Uniformity of 200 outgoing light.
  • the color wheel 280 provided in this embodiment emits multiple color gamut lights on the structure of one color wheel, and the color gamut of the emitted light can be flexibly switched according to the movement signal of the control device 800, without the need to make multiple color wheels, and the optical path Shorter, the fixed position of the color wheel 280 on the light source system 200 does not change, which can improve the utilization rate of light energy, reduce the volume of the light path, and enhance the customer viewing experience.
  • the color wheel 280 provided by the present invention is used in a laser TV.
  • the trigger signal received by the control device 800 is fixedly set to a first preset logic level, such as a high level, and the control device 800 according to the first A trigger signal with a preset logic level sends a moving signal, so that the color wheel 280 always emits light within a color gamut, such as the Rec.709 color gamut, so that the laser TV output image meets the international standards for high-definition televisions.
  • the trigger signal received by the control device 800 is fixedly set to a second preset logic level, such as a low level, and the control device 800 according to the second
  • the trigger signal of the preset logic level sends a moving signal, so that the color wheel 280 always emits light within a color gamut, such as the DCI-P3 color gamut, so that the projection image of the theater projector meets the international standards of digital cinema.
  • the color wheel 280 is applied to a display device, which may be an educational projector, a laser TV, a mini projector, a theater projector, a wall-building or an engineering projector.
  • the display device includes a housing and An input unit provided on the housing is electrically connected to the control device 800.
  • the input unit is used to receive user operations and transmit corresponding trigger signals to the control device 800.
  • the input unit may be a button, mouse, keyboard, or touch unit capable of receiving user operations.
  • the input power supply is omitted on the surface of the display device, the control device 800 wirelessly connects with the external terminal device, and receives the trigger signal sent by the external terminal device. The user can control the display device to emit the display image by operating the external terminal device. Color gamut range.
  • the second embodiment of the present invention replaces the light source system 200 in the display device 20 with the light source system 300.
  • the light source system 300 includes a color wheel 380
  • the first filter layer 385 and the second filter layer 386 on the color wheel 380 are both disposed in the area surrounded by the inner wall 381b of the substrate 381, and the first filter layer 385 is connected to the substrate 381 and the second filter layer Between 386. That is, the conversion layer 383 is disposed in the edge area of the color wheel 380, the second filter layer 386 is disposed in the geometric center area of the color wheel 380, and the first filter layer 385 is disposed between the second filter layer 386 and the conversion layer 383.
  • the substrate 381 is circular or ring-shaped, and the first filter layer 285 and the second filter layer 386 are both disposed on the periphery of the substrate 381, that is, the substrate 381 is disposed at the geometric center of the color wheel 380, the first The filter layer 385 and the second filter layer 386 are disposed away from the geometric center of the color wheel 380 relative to the substrate 381.
  • the first filter layer 385 and the second filter layer 386 are connected to the antireflection film 388 through a colloid.
  • the colloid can use a transparent optical glue to transmit light to the light homogenizing device 390.
  • the driving unit 389 on the color wheel 380 is disposed on the surface of the antireflection film 388 facing away from the conversion layer 383, and is used to drive the color wheel 380 to periodically rotate.
  • the movement data sent by the control device 800 is used to control the color wheel 380 to move to the first position P or the second position Q.
  • the guide assembly 360 guides the laser light and the scattered excitation light to the first filter layer 385 to obtain the first light
  • the guide assembly 360 The laser light and the scattered excitation light are guided to enter the second filter layer 386 and obtain second light.
  • the conversion layer 383 is provided with only yellow phosphor to convert the incident excitation light into yellow fluorescent emission.
  • the light source system 300 is also provided with a supplemental light source for emitting supplementary light, the supplementary light and the first light, The second light is emitted from the light source system 300 along the same optical path. For example, the blue supplementary light, the first light, and the second light both enter the light homogenizing device 390 and then exit.
  • control device 800 generates a movement signal according to the trigger signal to control the displacement of the color wheel 380 to change the optical path, so that the color wheel 380 emits light of multiple color gamuts on the same color wheel structure, which is beneficial to optimize the light source system 300
  • the color of the outgoing light enhances the customer's viewing experience.
  • the short light path of the light source system 300 is beneficial to improve the utilization of light energy and reduce the volume of the light path. It has a good market prospect.
  • a light source system 400 is used to replace the light source system 200 in the display device 20.
  • the main difference between the light source system 400 and the light source system 300 is that the color wheel 480 in the light source system 400 includes
  • the conversion layer 483 includes a first conversion layer 483a and a second conversion layer 483b.
  • the first conversion layer 483a and the second conversion layer 483b are disposed adjacent to each other, and the first conversion layer 483a is disposed adjacent to the first filter layer 485 relative to the second conversion layer 483b.
  • the first conversion layer 483a and the second conversion layer 483b can also be spaced apart.
  • the planes where the first conversion layer 483a and the second conversion layer 483b are located are parallel to each other or on the same plane, which is conducive to common use.
  • Other devices in the light source system 400 simplify the design of the optical path.
  • the first conversion layer 483a is used to emit the first received laser light, and the first received laser light is filtered by the first filter layer 485 to obtain the first light; the second conversion layer 483b is used to emit the second received laser light, the second received The laser light is filtered by the second filter layer 486 to obtain second light. That is, the light from the first conversion layer 483a is used to modulate the first color gamut image, and the light from the second conversion layer 483b is used to modulate the second color gamut image, so it can be selected according to the first color gamut standard and the second color gamut standard The wavelength conversion material provided in the first conversion layer 483a and the second conversion layer 483b.
  • both the first conversion layer 483a and the second conversion layer 483b are provided with a plurality of sections for emitting light of different colors.
  • the sections of the first conversion layer 483a and the second conversion layer 483b are arranged in the same way as the conversion layer 283.
  • the first conversion layer 483a is provided with a first section R, a second section G, and a third section Y
  • the fourth section B, the first section R, the second section G, the third section Y, the fourth section B are used to emit the first color light, the second color light, the third color light and the fourth color light, respectively .
  • the second conversion layer 483b is provided with a first section R', a second section G', a third section Y', a fourth section B', a first section R', a second section G', a first section
  • the three sections Y′ and the fourth section B′ are used to emit the first color light, the second color light, the third color light, and the fourth color light, respectively.
  • the first conversion layer 483a and the second conversion layer 483b respectively include a first section R and a first section R′ for emitting the first color light. Since different color gamuts have different requirements for the ratio of different colors of light, the first area The center angles occupied by the segment R and the first section R'are not equal, the center angles occupied by the first section R and the first section R1 are equal, and the first section R'and the first section R2 occupy the same The center angles are equal. In the light source system 400 shown in FIG.
  • the central angles occupied by the respective sections in the first conversion layer 483a and the corresponding color sections in the first filter layer 485 are symmetrical along the geometric center of the substrate 481, that is, the first The central angle occupied by the section R and the first section R1 is arranged symmetrically along the geometric center of the substrate 481.
  • the center angles occupied by the respective segments in the second conversion layer 483b and the corresponding color segments in the second filter layer 486 are symmetrical along the geometric center of the substrate 481, and the first segment R′ and the first segment R2 occupy The center angles are arranged symmetrically along the geometric center of the substrate 481.
  • the guide assembly 460 guides the excitation light to the first conversion layer 483a to obtain the first received laser light, and guides the first received laser light to enter the first filter layer 485 and The first light is obtained; when the color wheel 480 is at the second position Q, the guide assembly 460 guides the excitation light to the second conversion layer 483b and obtains the second received laser light, and guides the second received laser light to enter the second filter layer 486 and get the second light.
  • a light source system 500 is used to replace the light source system 200 in the display device 20.
  • the main difference between the light source system 500 and the light source system 200 is that the light source system 500 includes a color wheel 580.
  • the substrate 581 of the wheel 580 is provided with a conversion layer 583, a first filter layer 585 and a second filter layer 586, wherein the light incident surfaces of the conversion layer 583, the first filter layer 585 and the second filter layer 586 are located
  • the surface of the light source coincides, that is, the light incident surfaces of the conversion layer 583, the first filter layer 585, and the second filter layer 586 are on the same plane.
  • the substrate 581 includes a top surface 581a, the first filter layer 585 and the second filter layer 586 are respectively disposed at opposite ends of the top surface 581a, and the conversion layer 583 is connected to the middle area of the top surface 581a through the reflective layer 582.
  • the light incident surfaces of the conversion layer 583, the first filter layer 585 and the second filter layer 586 are parallel to the top surface 581a, and the distance from the light incident surface of the conversion layer 583 to the top surface 581a is the same as the light incident of the first filter layer 585
  • the distance from the surface to the top surface 581a is equal, and the distance from the light incident surface of the first filter layer 585 to the top surface 581a is the same as the distance from the light incident surface of the second filter layer 586 to the top surface 581a.
  • the substrate 581 is a transparent substrate.
  • the light incident surface of the conversion layer, the light incident surface of the first filter layer, and the light incident surface of the second filter layer may be located on the same plane Inside.
  • the conversion layer, the first filter layer and the second filter layer are directly connected to the top surface of the substrate or connected to the top surface of the substrate through other layer structures.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing (AREA)
  • Astronomy & Astrophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Filters (AREA)
  • Projection Apparatus (AREA)

Abstract

一种色轮（280），包括基板（281），以及设置于基板（281）上的：转换层（283），用于对入射光线进行波长转换并得到受激光；第一滤光层（285），用于对受激光进行滤光，以得到用于调制第一色域范围内图像的第一光；以及第二滤光层（286），用于对受激光进行滤光，以得到用于调制第二色域范围内图像的第二光；其中，转换层（283）的入光面、第一滤光层（285）的入光面以及第二滤光层（286）的入光面分别所在的平面相互平行或重合。还提供采用色轮（280）的光源系统（200）与显示设备（20），色轮（280）能够对受激光进行滤光后得到符合两个色域要求的基色光出射，从而达到不同的观影效果，大大增强客户使用体验感。

Description

色轮、光源系统及显示设备 技术领域
本发明涉及显示技术领域，尤其涉及一种色轮及光源系统及显示设备。
背景技术
本部分旨在为权利要求书中陈述的本发明的具体实施方式提供背景或上下文。此处的描述不因为包括在本部分中就承认是现有技术。
请参阅图1，现有技术中的激光荧光光源100，需要产生红、绿、蓝或更多颜色的荧光，通常使用方法为在色轮上涂上不同的荧光粉，激发光源110产生激发光，照射色轮180上的设置有荧光粉的转换层183激发出荧光，通过驱动马达的转动产生时序出射的不同颜色的荧光。由于荧光光谱较宽，其波长范围会超出我们所需要的目标，因此需要用滤光片185对荧光进行滤光。目前常用的方式是在荧光轮的内或外侧加设置滤光片185，一般设计为一圈色轮环片，只能按照一种色域需求制作设计，这种系统只能出射满足一种色域要求的基色光，不能满足多色域要求，应用局限性较大。
发明内容
本发明一方面提供一种色轮，包括基板，以及设置于所述基板上的：
转换层，用于对入射光线进行波长转换并得到受激光；
第一滤光层，用于对所述受激光进行滤光，以得到用于调制第一色域范围内图像的第一光；以及
第二滤光层，用于对所述受激光进行滤光，以得到用于调制第二色域范围内图像的第二光；
其中，所述转换层的入光面、所述第一滤光层的入光面与所述第 二滤光层的入光面分别所在的表面相互平行或重合。
进一步地，所述第二色域范围覆盖所述第一色域范围并具有超出所述第一色域范围的部分。
进一步地，所述第一滤光层与所述第二滤光层中均包括多个区段，每个区段用于对一种颜色的受激光进行滤光得到对应颜色的第一光或第二光，用于对同种颜色的受激光进行滤光的第一滤光层中的区段与第二滤光层中的区段的通过率曲线的带宽分别为第一带宽与第二带宽，所述第一带宽相较于所述第二带宽较宽。
进一步地，所述转换层与所述基板之间设置有用于反射光线的反射层。
进一步地，所述基板呈环形，包括：
顶面，设置有所述转换层与所述反射层；以及
与所述顶面连接的内侧壁与外侧壁，所述内侧壁与所述外侧壁相对设置。
进一步地，所述第一滤光层与所述第二滤光层中分别包括用于对所述受激光中的第一色光进行滤光的第一区段，所述第一滤光层的第一区段与所述第二滤光层的第一区段所占据的圆心角不相等。
进一步地，所述第一滤光层设置于所述基板的内侧壁围成的区域中，所述第二滤光层设置于所述基板的外侧壁的外围。
进一步地，所述色轮还包括：
驱动单元，设置于所述第一滤光层背离所述转换层一侧的表面上，用于带动所述色轮做周期性旋转。
进一步地，所述转换层包括：
第一转换层，用于发出第一受激光，所述第一受激光经过所述第一滤光层的滤光后得到所述第一光；
第二转换层，用于发出第二受激光，所述第二受激光经过所述第二滤光层的滤光后得到所述第二光。
进一步地，所述第一转换层相对于所述第二转换层邻近所述第一滤光层设置。
进一步地，所述第一转换层与所述第二转换层均包括用于出射第 一色光的第一区段，所述第一转换层与所述第一滤光层的第一区段所占据的圆心角相等，所述第二转换层与所述第二滤光层的第一区段所占据的圆心角相等。
进一步地，所述第一转换层与所述第一滤光层的第一区段所占据的圆心角沿所述基板的几何中心对称设置，所述第二转换层与所述第二滤光层的第一区段所占据的圆心角沿所述基板的几何中心对称设置。
本发明第二方面提供一种光源系统，包括：
激发光源，用于发出激发光；
色轮，为如上所述的色轮，所述激发光照射至所述转换层上并得到所述受激光；以及
反射镜，用于根据移动信号移动至第一位置或第二位置，当所述反射镜位于所述第一位置时，引导所述受激光入射至所述第一滤光层并得到所述第一光，当所述反射镜位于所述第二位置时，引导所述受激光入射至所述第二滤光层并得到所述第二光。
本发明第三方面提供一种光源系统，包括：
激发光源，用于发出激发光；
色轮，为如上所述的色轮，所述激发光照射至所述转换层上并得到所述受激光；以及
引导组件，用于引导所述受激光入射至所述第一滤光层或所述第二滤光层；
所述色轮还根据移动信号移动至第一位置或第二位置，当所述色轮位于所述第一位置时，所述引导组件引导所述受激光入射至所述第一滤光层并得到所述第一光，当所述色轮位于所述第二位置时，所述引导组件引导所述受激光入射至所述第二滤光层并得到所述第二光。
进一步地，所述光源系统还包括用于发出补充光的补充光源，所述补充光与所述第一光、所述第二光沿相同光路从光源系统出射。
本发明第四方面提供一种光源系统，包括：
激发光源，用于发出激发光；
色轮，为如上所述的色轮；以及
引导组件，用于引导所述激发光照射至所述转换层，以及引导所述受激光入射至所述第一滤光层或所述第二滤光层；
所述色轮还根据移动信号移动至第一位置或第二位置；
当所述色轮位于所述第一位置时，所述引导组件引导所述激发光照射至所述第一转换层上并得到所述第一受激光，以及引导所述第一受激光入射至所述第一滤光层并得到所述第一光；
当所述色轮位于所述第二位置时，所述引导组件引导所述激发光照射至所述第二转换层上并得到所述第二受激光，以及引导所述第二受激光入射至所述第二滤光层并得到所述第二光。
本发明第五方面提供一种显示设备，包括：
控制装置，用于根据触发信号发出移动信号，并且用于根据每帧待显示图像的图像数据发出调制信号；
光源系统，为如上任意一项所述的光源系统，用于根据所述移动信号出射所述第一光或所述第二光；以及
光调制装置，用于根据所述调制信号对所述第一光或所述第二光进行调制得到待显示图像的图像光。
本发明提供的色轮能够对受激光进行滤光后得到符合两个色域要求的基色光出射，从而有利于所述光源系统根据每帧待显示图像的色域信息灵活控制所述色轮出射用于调制不同色域的基色光，从而达到不同的观影效果，大大增强客户使用体验感。
附图说明
为了更清楚地说明本发明实施例/方式技术方案，下面将对实施例/方式描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例/方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中激光荧光光源的结构示意图。
图2为本发明优选实施方式提供的显示设备的结构示意图。
图3为图2所示的光源系统与控制装置在本发明第一实施方式中 的结构示意图。
图4为图3所示的色轮的俯视结构示意图。
图5为图2所示的光源系统与控制装置在本发明第二实施方式中的结构示意图，其中色轮位于第一位置。
图6为图5所示的色轮位于第二位置时的光源系统与控制装置的结构示意图。
图7为图5所示的色轮的俯视结构示意图。
图8为图2所示的光源系统与控制装置在第三实施方式中的结构示意图，其中色轮位于第一位置。
图9为图8所示的色轮位于第二位置时的光源系统与控制装置的结构示意图。
图10为图8所示的色轮的俯视结构示意图。
图11为图2所示的光源系统与控制装置在本发明第四实施方式中的结构示意图，其中色轮位于第一位置。
主要元件符号说明
激光荧光光源  100
显示设备      20
光源系统      200、300、400、500
激发光源      110、210
引导组件      260、460
反射镜        265
色轮          180、280、380、480、580
基板          281、381、481、581
顶面          281a、581a
内侧壁        281b、381b
外侧壁        281c
反射层        282、582
转换层        183、283、383、483、583
第一转换层    483a
第二转换层    483b
第一区段      R、R1、R2、R'
第二区段      G、G1、G2、G'
第三区段      Y、Y1、Y2、Y'
第四区段      B、B1、B2、B'
滤光片        185
第一滤光层    285、385、485、585
第二滤光层    286、386、486、586
增透膜        388
驱动单元      289、389
匀光装置      290、390
第一位置      M、P
第二位置      N、Q
控制装置      800
光调制装置    900
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施例对本发明进行详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
本发明提供一种色轮，能够出射用于调制两种色域图像的光线，本发明提供的色轮可以用于显示设备的光源系统中。
请参阅图2，显示设备20，包括：光源系统200、控制装置800与光调制装置900。其中，控制装置800，用于根据触发信号发出移动信号，并且用于根据每帧待显示图像的图像数据发出调制信号；光源系统200，用于根据移动信号控制色轮280出射用于调制第一色域范围图像的第一光或用于调制第二色域范围图像的第二光；光调制装置900，用于根据调制信号对第一光或第二光进行调制得到待显示图像的图像光。包括色轮280的光源系统200可以根据每帧待显示图像的色域信息出射用于调制不同色域的光线(基色光)，从而使得显示设备20根据不同色域的图像数据实现不同的观影效果，大大增强客户使用体验感。
请参阅图3-图4，控制装置800用于根据触发信号发出移动信号；光源系统200包括激发光源210、反射镜265以及色轮280。其中，激发光源210用于发出激发光，激发光照射至色轮280上的转换层283并得到受激光；反射镜265用于根据移动信号移动至第一位置M或第二位置N。当反射镜265位于第一位置M时，引导受激光入射至第一滤光层285并得到第一光，当反射镜265位于第二位置N时，引导受激光入射至第二滤光层286并得到第二光。激发光源210可以为蓝色光源，发出蓝色激发光。可以理解的是，激发光源210不限于蓝色光源，激发光源210也可以是紫色光源。本实施方式中，激发光源210中的发光体为蓝色激光器，用于发出蓝色激光作为激发光。在其他实施方式中，激发光源210中的发光体为蓝色发光二极管。可以理解，激发光源210可以包括一个、两个激光器或激光器阵列，具体其激光器的数量可以依据实际需要选择。在一种实施方式中，激发光源210还包括匀光器件，以对激发光进行匀光。匀光器件可以为光学积分棒或双复眼透镜，可以理解的是，匀光器件不是必须的，特别是在小型化的光源系统中。
如图3-图4所示，色轮280包括基板281，以及设置于基板281上的转换层283、第一滤光层285以及第二滤光层286。其中，转换层 283用于对入射光线进行波长转换并得到受激光；第一滤光层285，用于对受激光进行滤光，以得到用于调制第一色域范围内图像的第一光；第二滤光层286，用于对受激光进行滤光，以得到用于调制第二色域范围内图像的第二光。本实施方式中，第一滤光层285的入光面以及第二滤光层286的入光面分别所在的平面重合，即第一滤光层285的入光面以及第二滤光层286的入光面位于同一平面，转换层283的入光面所在平面与第一滤光层285的入光面所在的平面相互平行。
本发明提供的色轮280能够对受激光进行滤光后得到符合两个色域要求的基色光出射，从而有利于显示设备20根据每帧待显示图像的色域信息灵活控制色轮280出射用于调制不同色域的基色光，从而达到不同的观影效果，大大增强客户使用体验感。
本实施方式中，转换层283与基板281之间还设置有用于反射光线的反射层282，反射层282可以是反射膜或金属反光材料。在其他实施方式中，可以省略设置反射层282，即色轮280用于透射受激光与散射后的激发光。
具体地，基板281呈环形，包括顶面281a、内侧壁281b以及外侧壁281c。内侧壁281b以及外侧壁281c分别与顶面281a连接，内侧壁281b与外侧壁281c相对设置，内侧壁281b相对于外侧壁281c邻近基板281的几何中心。顶面281a上设置有转换层283与反射层282；第一滤光层285连接于基板281的内侧壁281b，并设置于内侧壁281b所围成的区域中，第二滤光层286连接于基板281的外侧壁281c，并设置于外侧壁281c的外围。
具体地，转换层283设置有波长转换材料，以对入射波长较短的激发光进行波长转换以得到波长较长的其他颜色的受激光，波长转换材料可以选择荧光粉、量子点或磷光材料等。转换层283包括第一区段R、第二区段G、第三区段Y以及第四区段B。其中，第一区段R设置有第一色波长转换材料以在激发光的激发下产生第一色受激光，第二区段G设置有第二色波长转换材料以在激发光的激发下产生第二色受激光，第三区段Y设置有第三色波长转换材料以在激发光的激发下产生第三色受激光，第四区段B设置由于散射材料以对激发光进行 散射得到散射后的激发光作为第四色光出射，对激发光进行散射可以缓解或消除激光产生的散斑现象。在本发明中，第一色、第二色、第三色与第四色分别为红色、绿色、黄色与蓝色，在其他实施方式中，第一色、第二色、第三色与第四色可以分别为其他颜色，比如用橙色荧光粉代理黄色荧光粉以产生橙色受激光，或者省略第三区段Y，也是可行的。
第一滤光层285与第二滤光层286均设置有对应转换层283各个区段的出射颜色光的多个区段。如图3所示，第一滤光层285包括第一区段R1、第二区段G1、第三区段Y1以及第四区段B 1，分别用于对转换层283出射的红色光、绿色光、黄色光与蓝色光进行滤光。第二滤光层286包括第一区段R2、第二区段G2、第三区段Y2以及第四区段B2，分别用于对转换层283出射的红色光、绿色光、黄色光与蓝色光进行滤光。在一种实施方式中，第四区段B 1与第四区段B2均设置有散射材料以对入射的蓝色激发光进行散射，以缓解激光散斑现象。
第一滤光层285与第二滤光层286中每个区段设置有对应颜色的滤光片，其中第一滤光层285中的滤光片用于对受激光进行滤光得到用于调制第一色域图像的第一光，第二滤光层286中的滤光片用于对受激光进行滤光得到用于调制第二色域图像的第二光。第一色域范围与第二色域范围不同，比如在本发明中，第二色域范围覆盖第一色域范围并具有超出第一色域范围的部分，第一色域范围可以是Rec.709标准色域，第二色域范围可以是DCI-P3标准色域，拥有更多红色和绿色的范围，几乎能够完全覆盖Rec.709标准。对于任何显示设备来说，能够显示的颜色越多，这就表示其色彩表现能力越强，DCI-P3标准则完全高于Rec.709标准。
由于第一色域范围与第二色域范围不同，相应地，用于对同种颜色的受激光进行滤光的第一滤光层中的区段与第二滤光层中的区段的通过率曲线的带宽分别为第一带宽与第二带宽，第一带宽相较于第二带宽较宽。比如，第一区段R1与第一区段R2分别用于对红色受激光进行滤光并出射第一色域范围与第二色域范围内的红色光，第一区段 R1出射的红色第一光覆盖色域范围相对较小，第一区段R1设置的滤光片的通过率曲线的带宽相对较宽；第一区段R2出射的红色第一光覆盖色域范围相对较大，第一区段R2设置的滤光片的通过率曲线的带宽相对较窄，以出射色纯度相对较高的红色第一光。相应地，第一滤光层285与第二滤光层286对应颜色区段中设置滤光片的通过率曲线同样有所区别，可以根据不同色域的要求灵活选择。
由于在不同色域标准中，为达到白平衡，所需要的不同颜色光量的比例是不同的，故第一滤光层285与第二滤光层286中对应颜色区段在色轮280中所占据的圆心角不相等。如图3所示，第一区段R1与第一区段R2所占据的圆心角不相等，第一区段R2占据的圆心角相对较大，即第二色域标准中要求增大红光的比例。相应地，其他颜色光的出射比例也可以根据不同色域标准的要求灵活设置第一滤光层285与第二滤光层286各个区段所占据的圆心角。
如图3所示，色轮280还包括驱动单元289，设置于第一滤光层285背离转换层283一侧的表面上，用于带动色轮280做周期性旋转，一般地，驱动单元289可以为马达。
进一步地，光源系统200中包括引导组件260，引导组件260中包括将激发光引导至转换层283上的光学器件，比如中继透镜等器件，以及引导受激光入射至第一滤光层285或第二滤光层286的反射镜265，散射后的激发光与受激光沿同一光路传输。在一种实施方式中，反射镜265滑动安装于一轨道上，控制装置800控制反射镜265在轨道上滑动至第一位置M或第二位置N。可以理解的是，受激光还可以经过其他反射镜或分光合光元件入射至反射镜265。
本实施方式中，第一滤光层285与第二滤光层286设置于同一平面上，从而保证色轮280外部光路可以公用，简化光源系统200内部光路设计，减少光学器件的引入。在其他实施方式中，第一滤光层285与第二滤光层286可以设置于不同平面上，优选地，第一滤光层285与第二滤光层286所在的平面相互平行。
光源系统200还包括匀光装置290，设置于色轮280背离激发光源210的一侧，用于对第一滤光层285与第二滤光层286出射的光线 进行匀光，以提高光源系统200出射光线的均匀性。
本实施方式中提供的色轮280在一个色轮的结构上出射多种色域光，可以根据控制装置800的移动信号灵活切换出射光线的色域，不需要制作多个色轮，并且光程较短，色轮280在光源系统200上固定位置不改变，能够提高光能利用率，减小光路体积，增强客户观影体验。
在一种实施方式中，本发明提供的色轮280应用于激光电视中，控制装置800接收到的触发信号被固定设置为第一预设逻辑电平，比如高电平，控制装置800根据第一预设逻辑电平的触发信号发出移动信号，使得色轮280始终出射一种色域范围内的光线，比如Rec.709色域范围，使得激光电视出射图像满足高清电视机的国际标准。
可以理解的是，若发明提供的色轮280应用于影院投影机中，控制装置800接收到的触发信号被固定设置为第二预设逻辑电平，比如低电平，控制装置800根据第二预设逻辑电平的触发信号发出移动信号，使得色轮280始终出射一种色域范围内的光线，比如DCI-P3色域范围，使得影院投影机出射图像满足数字影院的国际标准。
在一种实施方式中，色轮280应用于一显示设备中，该显示设备可以为教育投影仪、激光电视、微型投影机、影院投影机、拼墙或工程投影机，显示设备包括壳体以及设置于壳体上的输入单元，输入单元与控制装置800电连接，输入单元用于接收用户的操作并传输对应的触发信号至控制装置800。输入单元可以是能够接收到用户操作的按键、鼠标、键盘或触控单元。在一种实施方式中，显示设备表面省略设置输入电源，控制装置800与外部终端设备进行无线连接，并接收外部终端设备发送的触发信号，用户可以通过操作外部终端设备控制显示设备出射显示图像的色域范围。
请参阅图5-图7，本发明第二实施方式利用光源系统300替换显示设备20中的光源系统200，光源系统300与光源系统200相比，主要区别在于：光源系统300包括色轮380，色轮380上的第一滤光层385与第二滤光层386均设置于基板381的内侧壁381b所围成的区域中，第一滤光层385连接在基板381与第二滤光层386之间。即转换 层383设置于色轮380的边缘区域，第二滤光层386设置于色轮380的几何中心区域，第一滤光层385设置于第二滤光层386与转换层383之间。在一种实施方式中，基板381呈圆形或环形，第一滤光层285与第二滤光层386均设置于基板381的外围，即基板381设置在色轮380的几何中心，第一滤光层385与第二滤光层386相对基板381远离色轮380的几何中心设置。
如图5-图6所示，第一滤光层385与第二滤光层386通过胶体连接增透膜388，胶体可以选用透光的光学胶，以透射光线至匀光装置390。相应地，色轮380上的驱动单元389设置于增透膜388背离转换层383一侧的表面上，用于带动色轮380做周期性旋转。
进一步地，控制装置800发出的移动数据用于控制色轮380移动至第一位置P或第二位置Q。当色轮位于第一位置P时，引导组件360引导受激光与散射后的激发光入射至第一滤光层385并得到第一光，当色轮380位于第二位置Q时，引导组件360引导受激光与散射后的激发光入射至第二滤光层386并得到第二光。
在一种实施方式中，转换层383仅设置黄色荧光粉，以将入射的激发光转换为黄色荧光出射，光源系统300中还设置有于发出补充光的补充光源，补充光与第一光、第二光沿相同光路从光源系统300出射，比如蓝色补充光与第一光、第二光均入射至匀光装置390后出射。
本实施方式中，控制装置800根据触发信号产生移动信号，以控制色轮380产生位移来改变光路，使得色轮380在同一色轮结构上出射多种色域的光线，有利于优化光源系统300出射光线的颜色，增强客户观影体验，另外，光源系统300光程较短，有利于提高光能利用率，减小光路体积，具有较好的市场前景。
请参阅图8-图10，本发明第三实施方式中利用光源系统400替换显示设备20中的光源系统200，光源系统400与光源系统300的主要区别在于，光源系统400中的色轮480包括转换层483，转换层483包括第一转换层483a与第二转换层483b。其中第一转换层483a与第二转换层483b并排相邻设置，第一转换层483a相对第二转换层483b邻近第一滤光层485设置。在其他实施方式中，第一转换层483a与第 二转换层483b还可以间隔设置，优选地，第一转换层483a与第二转换层483b所在的平面相互平行或位于同一平面上，有利于公用光源系统400中的其他器件，简化光路设计。
第一转换层483a用于发出第一受激光，第一受激光经过第一滤光层485的滤光后得到第一光；第二转换层483b，用于发出第二受激光，第二受激光经过第二滤光层486的滤光后得到第二光。即第一转换层483a出射的光线用于调制第一色域图像，第二转换层483b出射的光线用于调制第二色域图像，因此可以根据第一色域标准与第二色域标准选取第一转换层483a与第二转换层483b中设置的波长转换材料。
相应地，第一转换层483a与第二转换层483b均设置有用于出射不同颜色光的多个区段。第一转换层483a与第二转换层483b中各个区段的设置方式与转换层283相同，比如，第一转换层483a设置有第一区段R、第二区段G、第三区段Y、第四区段B，第一区段R、第二区段G、第三区段Y、第四区段B分别用于发出第一色光、第二色光、第三色光与第四色光。第二转换层483b设置有第一区段R'、第二区段G'、第三区段Y'、第四区段B'，第一区段R'、第二区段G'、第三区段Y'、第四区段B'分别用于发出第一色光、第二色光、第三色光与第四色光。
第一转换层483a与第二转换层483b分别包括用于出射第一色光的第一区段R与第一区段R'，由于不同色域对不同颜色光线比例要求不同，故第一区段R与第一区段R'所占据的圆心角不相等，第一区段R与第一区段R1所占据的圆心角相等，第一区段R'与第一区段R2所占据的圆心角相等。在如图7所示的光源系统400中，第一转换层483a中的各个区段与第一滤光层485中对应颜色区段所占据的圆心角沿基板481的几何中心对称，即第一区段R与第一区段R1所占据的圆心角沿基板481的几何中心对称设置。第二转换层483b中的各个区段与第二滤光层486中对应颜色区段所占据的圆心角沿基板481的几何中心对称，第一区段R'与第一区段R2所占据的圆心角沿基板481的几何中心对称设置。
相应地，当色轮480位于第一位置P时，引导组件460引导激发 光照射至第一转换层483a上并得到第一受激光，以及引导第一受激光入射至第一滤光层485并得到第一光；当色轮480位于第二位置Q时，引导组件460引导激发光照射至第二转换层483b上并得到第二受激光，以及引导第二受激光入射至第二滤光层486并得到第二光。
请参阅图11，本发明第四实施方式中利用光源系统500替换显示设备20中的光源系统200，其中，光源系统500与光源系统200的主要区别在于，光源系统500中包括色轮580，色轮580的基板581上设置有转换层583、第一滤光层585与第二滤光层586，其中，转换层583、第一滤光层585与第二滤光层586的入光面所在的表面重合，即转换层583、第一滤光层585与第二滤光层586的入光面位于同一平面。
具体地，基板581包括顶面581a，第一滤光层585与第二滤光层586分别设置于顶面581a的相对两端，转换层583通过反射层582连接顶面581a的中间区域。转换层583、第一滤光层585与第二滤光层586的入光面与顶面581a平行，并且转换层583的入光面到顶面581a的距离与第一滤光层585的入光面到顶面581a的距离相等，第一滤光层585的入光面到顶面581a的距离与第二滤光层586的入光面到顶面581a的距离相等。在一种实施方式中，基板581为透明基板。
可以理解的是，在本发明的第二实施方式与第三实施方式中，转换层的入光面、第一滤光层的入光面以及第二滤光层的入光面可以位于同一平面内。在一种实施方式中，转换层、第一滤光层与第二滤光层直接与基板的顶面连接或通过其他层结构与基板的顶面连接。
需要说明的是，在本发明的精神或基本特征的范围内，各个实施方式中的技术方案可以相互适用，为节省篇幅及避免重复起见，在此就不再赘述。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和 范围内的所有变化涵括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。此外，显然“包括”一词不排除其他单元或步骤，单数不排除复数。装置权利要求中陈述的多个装置也可以由同一个装置或系统通过软件或者硬件来实现。第一，第二等词语用来表示名称，而并不表示任何特定的顺序。
最后应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换，而不脱离本发明技术方案的精神和范围。

Claims (17)

  1. 一种色轮，其特征在于，包括基板，以及设置于所述基板上的：
    转换层，用于对入射光线进行波长转换并得到受激光；
    第一滤光层，用于对所述受激光进行滤光，以得到用于调制第一色域范围内图像的第一光；以及
    第二滤光层，用于对所述受激光进行滤光，以得到用于调制第二色域范围内图像的第二光；
    其中，所述转换层的入光面、所述第一滤光层的入光面以及所述第二滤光层的入光面分别所在的平面相互平行或重合。
  2. 如权利要求1所述的色轮，其特征在于，所述第二色域范围覆盖所述第一色域范围并具有超出所述第一色域范围的部分。
  3. 如权利要求2所述的色轮，其特征在于，所述第一滤光层与所述第二滤光层中均包括多个区段，每个区段用于对一种颜色的受激光进行滤光得到对应颜色的第一光或第二光，用于对同种颜色的受激光进行滤光的第一滤光层中的区段与第二滤光层中的区段的通过率曲线的带宽分别为第一带宽与第二带宽，所述第一带宽相较于所述第二带宽较宽。
  4. 如权利要求1所述的色轮，其特征在于，所述转换层与所述基板之间设置有用于反射光线的反射层。
  5. 如权利要求4所述的色轮，其特征在于，所述基板呈环形，包括：
    顶面，设置有所述转换层与所述反射层；以及
    与所述顶面连接的内侧壁与外侧壁，所述内侧壁与所述外侧壁相对设置。
  6. 如权利要求5所述的色轮，其特征在于，所述第一滤光层与所述第二滤光层中分别包括用于对所述受激光中的第一色光进行滤光的第一区段，所述第一滤光层的第一区段与所述第二滤光层的第一区段所占据的圆心角不相等。
  7. 如权利要求6所述的色轮，其特征在于，所述第一滤光层设置 于所述基板的内侧壁围成的区域中，所述第二滤光层设置于所述基板的外侧壁的外围。
  8. 如权利要求6所述的色轮，其特征在于，所述第一滤光层与所述第二滤光层均设置于所述基板的内侧壁所围成的区域中，所述第一滤光层连接在所述基板与所述第二滤光层之间。
  9. 如权利要求8所述的色轮，其特征在于，所述第二滤光层背离所述转换层的一侧还设置有增透膜。
  10. 如权利要求8所述的色轮，其特征在于，所述转换层包括：
    第一转换层，用于发出第一受激光，所述第一受激光经过所述第一滤光层的滤光后得到所述第一光；
    第二转换层，用于发出第二受激光，所述第二受激光经过所述第二滤光层的滤光后得到所述第二光。
  11. 如权利要求10所述的色轮，其特征在于，所述第一转换层与所述第二转换层均包括用于出射第一色光的第一区段，所述第一转换层与所述第一滤光层的第一区段所占据的圆心角相等，所述第二转换层与所述第二滤光层的第一区段所占据的圆心角相等。
  12. 如权利要求11所述的色轮，其特征在于，所述第一转换层与所述第一滤光层的第一区段所占据的圆心角沿所述基板的几何中心对称设置，所述第二转换层与所述第二滤光层的第一区段所占据的圆心角沿所述基板的几何中心对称设置。
  13. 一种光源系统，其特征在于，包括：
    激发光源，用于发出激发光；
    色轮，为如权利要求1-7任意一项所述的色轮，所述激发光照射至所述转换层上并得到所述受激光；以及
    反射镜，用于根据移动信号移动至第一位置或第二位置，当所述反射镜位于所述第一位置时，引导所述受激光入射至所述第一滤光层并得到所述第一光，当所述反射镜位于所述第二位置时，引导所述受激光入射至所述第二滤光层并得到所述第二光。
  14. 一种光源系统，其特征在于，包括：
    激发光源，用于发出激发光；
    色轮，为如权利要求8-9任意一项所述的色轮，所述激发光照射至所述转换层上并得到所述受激光；以及
    引导组件，用于引导所述受激光入射至所述第一滤光层或所述第二滤光层；
    所述色轮还根据移动信号移动至第一位置或第二位置，当所述色轮位于所述第一位置时，所述引导组件引导所述受激光入射至所述第一滤光层并得到所述第一光，当所述色轮位于所述第二位置时，所述引导组件引导所述受激光入射至所述第二滤光层并得到所述第二光。
  15. 如权利要求14所述的光源系统，其特征在于，所述光源系统还包括用于发出补充光的补充光源，所述补充光与所述第一光、所述第二光沿相同光路从光源系统出射。
  16. 一种光源系统，其特征在于，包括：
    激发光源，用于发出激发光；
    色轮，为如权利要求10-12任意一项所述的色轮；以及
    引导组件，用于引导所述激发光照射至所述转换层，以及引导所述受激光入射至所述第一滤光层或所述第二滤光层；
    所述色轮还根据移动信号移动至第一位置或第二位置；
    当所述色轮位于所述第一位置时，所述引导组件引导所述激发光照射至所述第一转换层上并得到所述第一受激光，以及引导所述第一受激光入射至所述第一滤光层并得到所述第一光；
    当所述色轮位于所述第二位置时，所述引导组件引导所述激发光照射至所述第二转换层上并得到所述第二受激光，以及引导所述第二受激光入射至所述第二滤光层并得到所述第二光。
  17. 一种显示设备，其特征在于，包括：
    控制装置，用于根据触发信号发出移动信号，并且用于根据每帧待显示图像的图像数据发出调制信号；
    光源系统，为如权利要求13-16任意一项所述的光源系统，用于根据所述移动信号出射所述第一光或所述第二光；以及
    光调制装置，用于根据所述调制信号对所述第一光或所述第二光进行调制得到待显示图像的图像光。
PCT/CN2019/119135 2018-12-17 2019-11-18 色轮、光源系统及显示设备 WO2020125300A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/415,459 US20220075177A1 (en) 2018-12-17 2019-11-18 Color wheel, light source system and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811545020.1 2018-12-17
CN201811545020.1A CN111323901B (zh) 2018-12-17 2018-12-17 色轮、光源系统及显示设备

Publications (1)

Publication Number Publication Date
WO2020125300A1 true WO2020125300A1 (zh) 2020-06-25

Family

ID=71100200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/119135 WO2020125300A1 (zh) 2018-12-17 2019-11-18 色轮、光源系统及显示设备

Country Status (3)

Country Link
US (1) US20220075177A1 (zh)
CN (1) CN111323901B (zh)
WO (1) WO2020125300A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6932840B2 (ja) * 2017-04-10 2021-09-08 マテリオン プレシジョン オプティクス （シャンハイ） リミテッド 光変換のための組み合わせホイール
CN114609852A (zh) * 2022-03-17 2022-06-10 扬州吉新光电有限公司 一种波长转换装置及光源系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070146916A1 (en) * 2005-12-27 2007-06-28 Young Optics Inc. Filter device
CN102591119A (zh) * 2011-10-29 2012-07-18 明基电通有限公司 光源模组以及使用此光源模组的投影装置
CN104597698A (zh) * 2013-10-31 2015-05-06 中强光电股份有限公司 波长转换滤光模块与光源系统
CN105353578A (zh) * 2015-12-07 2016-02-24 杨阳 光源系统及其应用
CN205374967U (zh) * 2016-01-08 2016-07-06 深圳市光峰光电技术有限公司 色轮组件、光源装置以及投影系统
CN107608016A (zh) * 2017-09-21 2018-01-19 四川长虹电器股份有限公司 滤光色轮、滤光色轮控制系统及滤光色轮的同步控制方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012075949A1 (zh) * 2010-12-08 2012-06-14 绎立锐光科技开发(深圳)有限公司 光源

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070146916A1 (en) * 2005-12-27 2007-06-28 Young Optics Inc. Filter device
CN102591119A (zh) * 2011-10-29 2012-07-18 明基电通有限公司 光源模组以及使用此光源模组的投影装置
CN104597698A (zh) * 2013-10-31 2015-05-06 中强光电股份有限公司 波长转换滤光模块与光源系统
CN105353578A (zh) * 2015-12-07 2016-02-24 杨阳 光源系统及其应用
CN205374967U (zh) * 2016-01-08 2016-07-06 深圳市光峰光电技术有限公司 色轮组件、光源装置以及投影系统
CN107608016A (zh) * 2017-09-21 2018-01-19 四川长虹电器股份有限公司 滤光色轮、滤光色轮控制系统及滤光色轮的同步控制方法

Also Published As

Publication number Publication date
CN111323901A (zh) 2020-06-23
US20220075177A1 (en) 2022-03-10
CN111323901B (zh) 2022-02-08

Similar Documents

Publication Publication Date Title
US10732495B2 (en) Illumination system, projection apparatus and method for driving illumination system
US10139713B2 (en) Light source system and projection system
CN110161791B (zh) 照明系统及投影装置
US9348204B2 (en) Light source module with wavelength conversion module and projection apparatus
EP3457687A1 (en) Illumination system and projection apparatus
US20120327374A1 (en) Illumination apparatus and projection display apparatus
JP2016006523A (ja) 投影装置
US10732496B2 (en) Color wheel and laser projection apparatus
US11359793B2 (en) Lighting apparatus and projection-type image display apparatus
WO2020140780A1 (zh) 光源系统及投影设备
WO2020125300A1 (zh) 色轮、光源系统及显示设备
CN112424687B (zh) 照明装置和投影仪
CN113406850B (zh) 一种投影系统
CN110941134B (zh) 显示设备、显示设备的控制方法及计算机可读存储介质
CN215006225U (zh) 一种投影系统
CN110365953B (zh) 投影系统
JP6908036B2 (ja) 光源装置及び投影表示装置
WO2020135300A1 (zh) 光源系统及投影装置
WO2021008332A1 (zh) 光源系统与显示设备
CN111381426B (zh) 光源系统及投影设备
US10031404B2 (en) Light source module for optical projection device and optical projection device including the light source module
CN218099912U (zh) 一种光源装置和投影系统
CN211296855U (zh) 一种提高投影图像颜色均匀性的dlp投影仪及投影系统
CN116560172B (zh) 光学引擎
WO2020103784A1 (zh) 散射元件、光源系统及显示设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19899964

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19899964

Country of ref document: EP

Kind code of ref document: A1