WO2019144494A1 - 投影装置及色域调整方法 - Google Patents

投影装置及色域调整方法 Download PDF

Info

Publication number
WO2019144494A1
WO2019144494A1 PCT/CN2018/080894 CN2018080894W WO2019144494A1 WO 2019144494 A1 WO2019144494 A1 WO 2019144494A1 CN 2018080894 W CN2018080894 W CN 2018080894W WO 2019144494 A1 WO2019144494 A1 WO 2019144494A1
Authority
WO
WIPO (PCT)
Prior art keywords
color
laser
primary color
fluorescence
gamut range
Prior art date
Application number
PCT/CN2018/080894
Other languages
English (en)
French (fr)
Inventor
胡飞
郭祖强
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 EP18902127.2A priority Critical patent/EP3745204A4/en
Priority to US16/964,165 priority patent/US11650490B2/en
Publication of WO2019144494A1 publication Critical patent/WO2019144494A1/zh

Links

Classifications

    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • 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
    • 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
    • G03B21/206—Control of light source other than position or intensity
    • 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
    • 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
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • 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
    • H04N9/3161—Modulator illumination systems using laser light sources
    • 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]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut

Definitions

  • the present application relates to the field of display technologies, and in particular, to a color gamut adjustable projection device and a color gamut adjustment method.
  • Multicolor light sources are widely used in a variety of applications for projection displays.
  • the excitation light generated by the excitation light source is concentrated by the lens and then incident on the color wheel.
  • the phosphor wheel is provided with a plurality of phosphor regions in the circumferential direction, for example, a green phosphor region. , red phosphor area and blue phosphor area.
  • the fluorescent color wheel is rotated by the driving device, so that the above region on the color wheel is alternately arranged on the transmission path of the excitation light generated by the excitation light source, thereby converting the excitation light incident thereon into green light, red light or Blue light forms a sequence of colored light.
  • the color light sequence described above is further used for subsequent projection display. For example, when the color wheel rotates at a frequency of 60 Hz (one rotation of 16.6 ms), the R, G, and B regions respectively occupy 5.5 ms to generate corresponding light.
  • the luminance of the light source system in the above technical solution is limited.
  • the mode of the luminance of the illumination is relatively simple. In other words, when the projection device is applied to different scenes, the luminance of the illumination is not adjustable. In response to this defect, there are some improved technical solutions. By adding a Y segment on the color wheel and coating the yellow phosphor in the Y segment, since the excitation efficiency of the yellow phosphor is much higher than that of the red or green phosphor, The efficiency of the excitation will be greatly improved.
  • the projection device When the projection device is in a scene with high ambient light, it can be turned on by the time protection laser light source to cause the yellow phosphor to be excited to generate yellow fluorescence to improve the brightness of the light; on the other hand, when the projection device is in a dark environment For example, when the color wheel is rotated to the Y segment, the yellow laser of the Y segment can be prevented from being excited by the laser light to reduce the brightness of the light.
  • a projection device comprising:
  • a light source device configured to emit a first primary color laser, a second primary color laser, a third primary color laser, and a fourth mixed color fluorescence according to the instruction;
  • the first primary color laser, the second primary color laser, and the fourth mixed color fluorescent light can modulate the first color a domain-wide image;
  • the first primary color laser, the third primary color laser, and the fourth mixed color fluorescence are capable of modulating an image of a second color gamut; the first color gamut range and the second color gamut range combined into a continuous color gamut range;
  • control device configured to determine a color gamut range of pixels of the image to be modulated, and control the light source device to output the first primary color laser, the second primary color laser, the third primary color laser, and the fourth mixed color fluorescent according to the color gamut range The light required to modulate the image to be modulated.
  • the laser is used to modulate the image, and the image of the wide color gamut can be modulated, and the color gamut of the pixel of the image to be modulated is also determined, and the light source device is controlled to output the required light according to the color gamut range, without Light can be turned off, which saves energy in the light source.
  • the brightness and time period of the light emitted by the light source device correspond to the instruction.
  • the fourth mixed color fluorescence comprises a second primary color fluorescence and a third primary color fluorescence, and in a specific embodiment, a fourth mixed color fluorescence or a second primary color fluorescence or a third primary color fluorescence may be used as one of the modulated light sources. .
  • the light source device when the pixels of the image to be modulated belong to the first color gamut range, the light source device outputs the first primary color laser, the second primary color laser, and the fourth mixed color fluorescence to modulate the image to be modulated. ;
  • the light source device When the pixels of the image to be modulated belong to the second color gamut range, the light source device outputs a first primary color laser, a third primary color laser, and a fourth mixed color fluorescence to modulate the image to be modulated;
  • the light source device outputs a first primary color laser, a second primary color laser, a third primary color laser, and a fourth mixed color fluorescent light when the image to be modulated includes pixels located in a first color gamut range and pixels in a second color gamut range To modulate the image to be modulated.
  • the above mentioned pixels of the image to be modulated belong to the first color gamut range or belong to the second color gamut range, which means that all belong to, or most of them belong to the first color gamut range or belong to the second color gamut range, where The vast majority refers to more than 90% of the pixels of the image to be modulated belong to the first color gamut range or belong to the second color gamut range.
  • the second primary color laser or the third primary color laser can be turned off according to the color gamut range to which the image to be modulated belongs, so that the laser light source energy can be effectively saved on the basis of being able to adjust the image of the wide color gamut range.
  • the light source device when the pixel of the image to be modulated belongs to the first color gamut range, the light source device outputs the first primary color laser, the second primary color laser, and the fourth mixed color fluorescence to modulate the image to be modulated.
  • the fourth mixed color fluorescence into the second primary color fluorescence so that the first primary color laser, the second primary color laser, and the second primary color fluorescence are used as the three primary colors to modulate the first color gamut range image
  • the The brightness of the resulting image is modulated because this embodiment does not filter out the third primary color fluorescence in the fourth mixed color fluorescence.
  • the light source device when the pixel of the image to be modulated belongs to the second color gamut range, the light source device outputs the first primary color laser, the third primary color laser, and the fourth mixed color fluorescence to modulate the image to be modulated.
  • the fourth mixed color fluorescence into the third primary color fluorescence so that the first primary color laser, the third primary color laser, and the third primary color fluorescence are used as the three primary color lights to modulate the second color gamut range image
  • the The brightness of the resulting image is modulated because this embodiment does not filter out the second primary color fluorescence in the fourth mixed color fluorescence.
  • the first color gamut range is divided into a first sub-gamut range and a second sub-gamut range; the second sub-gamut range is close to the first sub-gamut range a color gamut range; when the pixels of the image to be modulated belong to the first sub-gamut range, the light source device outputs a first primary color laser, a second primary color laser, and an output obtained by filtering the fourth mixed color fluorescent The two primary colors are fluorescent to modulate the image to be modulated.
  • the third primary color fluorescence in the fourth mixed color fluorescence is filtered to obtain the second primary color fluorescence, and the image of the first sub-gamut range is modulated by the first primary color laser, the second primary color laser, and the second primary color fluorescence.
  • the usage amount of the second primary color laser can be reduced, that is, the brightness of the second primary color laser is lowered, thereby Save laser source energy.
  • the first color gamut range is divided into a first sub-gamut range and a second sub-gamut range; the second sub-gamut range is close to the first sub-gamut range a two-color range; when the pixel of the image to be modulated belongs to the second sub-gamut range, controlling the light source device to output the mixed light of the first primary color laser, the second primary color laser, and the fourth mixed color fluorescent, and The four mixed colors are fluorescent to modulate the image to be modulated.
  • the second primary color laser and the fourth mixed color fluorescence are simultaneously outputted in one period, and the mixed light of the two is used as a primary color light to modulate the image, relative to the use of the first primary color laser, the second primary color laser, and the first The fourth mixed color fluorescence is used to modulate the second sub-gamut range.
  • the fourth mixed color fluorescence is outputted in one period, and the overall brightness of the image obtained by the modulation can be improved.
  • the second color gamut is divided into a third sub-gamut range and a fourth sub-gamut range; the third sub-gamut range is close to the first color gamut relative to the fourth sub-gamut range a range; when the pixel of the image to be modulated belongs to a third sub-gamut range, controlling the light source device to output the first primary color laser, the fourth mixed color fluorescent, and the mixed light of the third primary color laser and the fourth mixed color fluorescent To modulate the image to be modulated.
  • the third primary color laser and the fourth mixed color fluorescence are simultaneously outputted in one period, and the mixed light of the two is used as a primary color light to modulate the image, relative to the use of the first primary color laser, the third primary color laser, and the first The fourth mixed color fluorescence is used to modulate the third sub-gamut range.
  • the fourth mixed color fluorescence is outputted in one period, and the overall brightness of the image obtained by the modulation can be improved.
  • the second color gamut is divided into a third sub-gamut range and a fourth sub-gamut range; the third sub-gamut range is close to the first color gamut relative to the fourth sub-gamut range a range; when the pixel of the image to be modulated belongs to the fourth sub-gamut range, controlling the light source device to output a first primary color laser, a third primary color laser, and outputting a third primary color obtained by filtering the fourth mixed color fluorescent Fluorescence to modulate the image to be modulated.
  • the second primary color fluorescence in the fourth mixed color fluorescence is filtered to obtain a third primary color fluorescence, and the image of the fourth sub-gamut range is modulated by the first primary color laser, the third primary color laser, and the third primary color fluorescence.
  • the usage amount of the third primary color laser can be reduced, that is, the brightness of the third primary color laser can be reduced, thereby Save laser source energy.
  • the light source device comprises:
  • a wavelength conversion device comprising a conversion region and a guiding region, wherein the conversion region and the guiding region periodically move to circulate an optical path of the first primary color laser; the conversion region is configured to absorb the first primary color laser and generate The fourth mixed color is emitted and emitted; the guiding area is configured to guide the first primary color laser to exit;
  • a second primary color light source for emitting the second primary color laser
  • a third primary color light source for emitting the third primary color laser.
  • the light source device further includes:
  • a filter device comprising a first filter zone, a second filter zone and a transparent zone
  • the first filter region can be driven to the optical path of the fourth mixed color fluorescence to filter the fourth mixed color fluorescence to obtain a second primary color fluorescence;
  • the second filter region can be driven to the optical path of the fourth mixed color fluorescence to filter the fourth mixed color fluorescence to obtain a third primary color fluorescence;
  • the transparent region can be driven to the optical path of the fourth mixed color fluorescent light to pass the fourth mixed color fluorescent light.
  • the first primary color laser is a blue laser; the second primary color laser is a green laser; the third primary color laser is a red laser; and the fourth mixed color fluorescent is a yellow fluorescent;
  • the two primary color fluorescence is green fluorescence; the third primary color fluorescence is red fluorescence.
  • the application further provides a color gamut adjustment method applied to the projection device, comprising:
  • first primary color laser, the second primary color laser, and the fourth mixed color fluorescence are capable of modulating an image of a first color gamut; the first primary color laser, the third primary color laser, and the fourth mixed color fluorescence are capable of modulating a second color Domain-wide image; the first color gamut range and the second color gamut range combined into a continuous color gamut range.
  • the application uses a laser to modulate an image, can modulate an image of a wide color gamut, and also determines a color gamut range of pixels of the image to be modulated, and controls the light source device to output the required light according to the color gamut range, and the unnecessary light can be turned off. Therefore, the energy of the light source can be saved.
  • FIG. 1 is a schematic diagram of the components of the projection device of the present application.
  • Embodiment 1 of a light source device of the present application
  • FIG. 3 is a schematic diagram of one embodiment of a wavelength conversion device in a light source device of the present application.
  • FIG. 4 is a schematic diagram of pixel color gamut range division of a modulated image of a projection apparatus of the present application
  • 5 to 7 are schematic diagrams of an embodiment of a light source opening and closing period of a projection device when a modulated image pixel is located in a GYB or YRB color gamut range, and an embodiment of a wavelength conversion device;
  • Figure 8 is a schematic view showing an embodiment of a second spectral filter and a third spectral filter
  • FIGS. 9 and 10 are schematic views of an embodiment of a projection device light source on/off period and an embodiment of a wavelength conversion device when a modulated image includes pixels in a GYB and YRB color gamut range;
  • FIG. 11 is a schematic view showing an embodiment of a light source device of the present application provided with a filter device;
  • Figure 12 is a schematic view of a specific embodiment of the green light device of Figure 11;
  • Figure 13 is a schematic diagram of an embodiment of a light source opening and closing period of a projection device when a modulated image pixel is in a G'YB color gamut;
  • Figure 14 is a schematic illustration of an embodiment of a projection device light source on/off period when a modulated image pixel is in the YR'B color gamut range.
  • the present application provides a projection apparatus, which in one embodiment includes: a control device 10, a light source device 20, and a spatial light modulator 30; the control device 10 controls the light source device 20 to output light according to a command, and the light source device The color of the output light, the brightness, and the period of the output light are related to the command given by the control device 10; the light output from the light source device 20 is irradiated to the spatial light modulator 30, and the control device 10 controls the spatial light modulator 30 to modulate the light source.
  • the light output by device 20 produces a predetermined image.
  • the schematic diagram of the structure of the light source device 20 is as shown in FIG. 2, and the light source device 20 includes a blue laser light source 101, a red laser light source 102, and a green laser light source 103, which are respectively distributed in the light source device to emit light paths.
  • the wavelength conversion device 200, the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303 are sequentially disposed on the light path of the light source device.
  • the first spectroscopic filter 301 reflects blue light and transmits yellow fluorescence.
  • the blue laser light source 101 is emitted and reflected by the first spectroscopic filter 301 to the wavelength conversion device 200 to excite the wavelength conversion device 200.
  • the second spectral filter 302 transmits blue and yellow fluorescent light, and reflects red light, and the emitted light of the red laser light source 102 is reflected by the second spectral filter 302 to the light outgoing light path; the third splitting light The filter 303 transmits blue light and yellow fluorescent light, and reflects green light, and the emitted light of the green laser light source 103 is reflected by the third spectral filter 303 to the light outgoing light path.
  • the schematic diagram of the structure of the wavelength conversion device 200 is as shown in FIG. 3, and includes a conversion area 210, a guiding area 220, and a driving motor (not shown).
  • the transition zone 210 and the guide zone 220 are rotated by the drive motor to periodically cycle the optical path on the blue laser.
  • the guiding area 220 is a transmissive area for transmitting blue laser light.
  • the lead-in area 220 can also be a reflective area for reflecting blue laser light.
  • the conversion region 210 contains a yellow fluorescent material for absorbing blue laser light and generating yellow fluorescence.
  • the light transmitted by the wavelength conversion device 200 passes through the first mirror 401, the second mirror 402, and the third mirror 403 disposed behind and below the wavelength conversion device 200 as shown in FIG. 2, and is reflected to the first
  • the light splitting filter 301 is then reflected to the light exiting light path; the light directly reflected by the wavelength converting device 200 is directly transmitted through the first spectral filter 301.
  • the red laser light source 102 when the pixels of the image to be modulated belong to the GYB color gamut range, the red laser light source 102 is turned off, and the light source device 20 outputs blue laser light, green laser light, and yellow fluorescent light to modulate the to-be prepared modulation. image.
  • the time of one rotation of the wavelength conversion device 200 is one modulation period T
  • the opening and closing period of each light source is as shown in FIG. 5
  • the period of each section of the wavelength conversion device 200 is on the blue laser optical path.
  • the low band means the laser is off
  • the high band means the laser is on
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the guiding region 220 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser is transmitted through the guiding region 220 via the first mirror 401401, After the second mirror 402, the third mirror 403, and the first spectroscopic filter 301 are reflected, the second spectroscopic filter 302 and the third spectroscopic filter 303 are further transmitted, and the blue laser light is output.
  • the green laser source 103 is turned on, the blue laser source 101 and the red laser source 102 are turned off, the first region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the conversion region 210 absorbs the blue laser to generate yellow fluorescence.
  • the first spectroscopic filter 301 transmits the output; the green laser is reflected by the third spectroscopic filter 303 and is output.
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the second region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser excites the yellow fluorescent material to generate a yellow fluorescent output.
  • the yellow fluorescence is emitted to the first spectral filter 301, and further transmitted through the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303, and is output.
  • the ratio of the duration of the t1 period, the t2 period, and the t3 period can be adjusted as needed.
  • the green laser light source is turned off, and the light source device 20 outputs blue laser light, red laser light, and yellow fluorescent light to modulate the image to be modulated.
  • the time of one rotation of the wavelength conversion device 200 is one modulation period T
  • the opening and closing period of each light source is as shown in FIG. 7, and the period of each section of the wavelength conversion device 200 is on the blue laser light path.
  • Figure 6 where:
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the guiding region 220 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser transmitting guide region 220 is passed through the first mirror 401, After the second mirror 402, the third mirror 403, and the first spectroscopic filter 301 are reflected, the second spectroscopic filter 302 and the third spectroscopic filter 303 are further transmitted, and the blue laser light is output.
  • the red laser source 102 is turned on, the blue laser source 101 and the green laser source 103 are turned off, the first region 211 of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the red laser is passed through the second spectral filter 302. After the reflection, it is further transmitted through the third spectral filter 303 to be output.
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, and the second region 212 of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser excites the yellow fluorescent material to generate yellow fluorescence.
  • the yellow fluorescence is emitted to the first spectral filter 301, and further transmitted through the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303, and is output.
  • the ratio of the duration of the t1 period, the t2 period, and the t3 period may be different, and the brightness of each of the three color lasers may also be different.
  • the combined light between the red laser and the yellow fluorescent light, and the combined light between the green laser and the yellow fluorescent light can be combined by the difference in optical expansion between the two; the optical expansion ratio of the laser The amount of optical expansion of fluorescence is small.
  • the structure of the second spectral filter 302 and the third spectral filter 303 can be as shown in FIG. 8, wherein the area of the central region 320 is smaller than the area of the surrounding region 310.
  • the red laser light is reflected by the central region 320 of the second spectral filter 302, and the red fluorescence in the yellow fluorescent light can be transmitted through the peripheral region 310 of the second spectral filter 302; the green fluorescent light in the yellow fluorescent light can transmit the second spectral filtering filter.
  • the central area 320 of the sheet 302 and the surrounding area 310 The central area 320 of the sheet 302 and the surrounding area 310.
  • the green laser light is reflected by the central region 320 of the third spectral filter 303, and the green fluorescence in the yellow fluorescent light can be transmitted through the peripheral region 310 of the third spectral filter 303, and the red fluorescent light in the yellow fluorescent light can transmit the third.
  • the light source device 20 when the image to be modulated includes pixels located in the GYB color gamut range and pixels including the YRB color gamut, the light source device 20 outputs the first primary color laser, the second primary color laser, the third primary color laser, and the fourth The color is mixed to modulate the image to be modulated.
  • the time of one rotation of the wavelength conversion device 200 is one modulation period T
  • the opening and closing period of each light source is as shown in FIG. 9, and the period of each section of the wavelength conversion device 200 is on the blue laser light path.
  • Figure 10 shows that
  • the low band means the laser is off
  • the high band means the laser is on
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the guiding region 220 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser transmitting guide region 220 is passed through the first mirror 401, After the second mirror 402, the third mirror 403, and the first spectroscopic filter 301 are reflected, the second spectroscopic filter 302 and the third spectroscopic filter 303 are further transmitted, and the blue laser light is output.
  • the green laser source 103 is turned on, the blue laser source 101 and the red laser source 102 are turned off, the first region 213 of the conversion region of the wavelength conversion device 200 is located on the optical path of the blue laser, and the green laser is reflected by the third spectral filter 303. And is output.
  • the red laser source 102 is turned on, the blue laser source 101 and the green laser source 103 are turned off, the second region 214 of the conversion region of the wavelength conversion device 200 is located on the optical path of the blue laser, and the red laser is reflected by the second spectral filter 302. And transmitted through the third spectral filter 303 and output.
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the third region 215 of the conversion region of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser excites the yellow fluorescent material to generate yellow fluorescence;
  • the yellow fluorescence is emitted to the first spectral filter 301, and further transmitted through the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303, and is output.
  • the GYB color gamut range is divided into a GG'B color gamut range and a G'YB color gamut range; the G'YB color gamut range is closer to the YRB color gamut range than the GG'B color gamut range; the YRB color gamut The range is divided into a YR'B color gamut range and an R'RB color gamut range, and the YR'B color gamut range is closer to the GYB color gamut range than the R'RB color gamut range.
  • the light source device 20 when the pixels of the image to be modulated belong to the GG'B color gamut range, the light source device 20 outputs a blue laser, a green laser, and outputs green fluorescence obtained by filtering the yellow fluorescence to modulate the image to be modulated.
  • the light source device 20 further includes: a filter device 500.
  • the filter device 500 includes a first filter region 510, a second filter region 520, a transparent region 530, and a drive motor (not shown).
  • the blue laser light source 101, the green laser light source 103, and the red laser light source 102 can be opened and closed according to FIG. 5, and the first filter region 510 of the filter device is driven to the yellow fluorescent light path to filter yellow.
  • the green fluorescence is obtained by fluorescence, so that the blue laser, the green laser, and the green fluorescence are output to the spatial light modulator 30 for modulating the image to be modulated.
  • the light source device 20 when the pixels of the image to be modulated belong to the R'RB color gamut range, the light source device 20 outputs a blue laser, a red laser, and a red fluorescence obtained by filtering the yellow fluorescence to modulate the image to be modulated.
  • the blue laser source 101, the green laser source 103, and the red laser source 102 can be opened and closed according to FIG. 7, and the second filter region 520 of the filter device is driven to On the yellow fluorescent light path, yellow fluorescence is filtered to obtain red fluorescence, so that the blue laser light, the green laser light, and the red fluorescent light are output to the spatial light modulator 30 for modulating the image to be modulated.
  • the light source device 20 when the pixels of the image to be modulated belong to the G'YB gamut range, the light source device 20 outputs the mixed light of the blue laser, the green laser, and the yellow fluorescence, and the yellow fluorescence to modulate the image to be modulated.
  • the transmission area of the filter device is driven to the optical path of the yellow fluorescence; the time of one rotation of the wavelength conversion device 200 is one modulation period T, and the opening and closing period of each light source is as shown in FIG. And the period of each section of the wavelength conversion device 200 on the blue laser light path is as shown in FIG. 6:
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the guiding region 220 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser transmitting guide region 220 is passed through the first mirror 401, After the second mirror 402, the third mirror 403, and the first spectroscopic filter 301 are reflected, the second spectroscopic filter 302 and the third spectroscopic filter 303 are further transmitted, and the blue laser light is output.
  • the green laser light source 103 is turned on, the blue laser light source 101 is turned on, and the red laser light source 102 is turned off, the first region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser light; the blue laser light is excited by the yellow fluorescent material to generate yellow Fluorescence; yellow fluorescence is emitted to the first spectroscopic filter 301, and further transmitted through the first spectroscopic filter 301, the second spectroscopic filter 302, and the third spectroscopic filter 303; the green laser is filtered by the third spectroscopic filter The sheet 303 is reflected; thus, the mixed light of the yellow fluorescent light and the green laser light is output.
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, and the second region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser excites the yellow fluorescent material to generate yellow fluorescence;
  • the yellow fluorescence is emitted to the first spectral filter 301, and further transmitted through the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303, and is output.
  • the light source device 20 when the pixels of the image to be modulated belong to the YR'B color gamut range, the light source device 20 outputs blue laser light, yellow fluorescent light, and mixed light of red laser light and yellow fluorescent light to modulate the image to be modulated.
  • the transmission area of the filter device is driven to the optical path of the yellow fluorescence; the time of one rotation of the wavelength conversion device 200 is one modulation period T, and the opening and closing period of each light source is as shown in FIG. And the period in which the sections of the wavelength conversion device 200 are located on the blue laser light path can be as shown in FIG. 6:
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, the guiding region 220 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser transmitting guide region 220 is passed through the first mirror 401, After the second mirror 402, the third mirror 403, and the first spectroscopic filter 301 are reflected, the second spectroscopic filter 302 and the third spectroscopic filter 303 are further transmitted, and the blue laser light is output.
  • the red laser light source 102 is turned on, the blue laser light source 101 is turned on, and the green laser light source 103 is turned off, the first region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser light; the blue laser light is excited by the yellow fluorescent material to generate yellow Fluorescence; yellow fluorescence is emitted to the first spectroscopic filter 301, and further transmitted through the first spectroscopic filter 301, the second spectroscopic filter 302, and the third spectroscopic filter 303; the red laser is filtered by the second spectroscopic filter The sheet 302 is reflected and further transmitted through the third spectral filter 303; thus, the mixed light of the yellow fluorescent light and the red laser light is output.
  • the blue laser source 101 is turned on, the green laser source 103 and the red laser source 102 are turned off, and the second region of the conversion region 210 of the wavelength conversion device 200 is located on the optical path of the blue laser, and the blue laser excites the yellow fluorescent material to generate yellow fluorescence;
  • the yellow fluorescence is emitted to the first spectral filter 301, and further transmitted through the first spectral filter 301, the second spectral filter 302, and the third spectral filter 303, and is output.

Abstract

本申请提供一种投影装置及其色域调整方法，所述投影装置包括用于根据指令出射第一基色激光、第二基色激光、第三基色激光和第四混色荧光的光源装置，以及控制装置，用于判断待调制图像的像素的色域范围，根据所述色域范围来控制所述光源装置输出所述第一基色激光、第二基色激光、第三基色激光和第四混色荧光中调制所述待调制图像所需要的光，所述第一基色激光、第二基色激光和第四混色荧光能够调制出第一色域范围的图像；所述第一基色激光、第三基色激光和第四混色荧光能够调制出第二色域范围的图像；所述第一色域范围和第二色域范围组合成连续色域范围。本申请能够调制出宽色域的图像，而且还可以节省光源能量。

Description

投影装置及色域调整方法 技术领域
本申请涉及一种显示技术领域，尤其涉及一种色域可调整的投影装置及色域调整方法。
 背景技术
低功耗及良好的画质是显示器业界不断追求的目标。消费者在挑选显示器时已经不只是关注产品的技术指标与产品价格，功耗及显示效果已经成为选择显示器的一个重要考虑因素。多色光源广泛地应用于投影显示的各种应用场合。在一种现有技术的光源系统中，激发光光源产生的激发光经透镜聚光后入射到色轮上，色轮上沿圆周方向分别设置有多个荧光粉区，例如绿光荧光粉区、红光荧光粉区以及蓝光荧光粉区。荧光色轮在驱动装置的驱动下转动，使得色轮上的上述区域交替设置于激发光光源产生的激发光的传输路径上，进而将入射于其上的激发光转换成绿光、红光或蓝光，形成一彩色光序列。上述彩色光序列进一步用于后续的投影显示。例如当色轮以60HZ的频率（16.6ms旋转一圏）旋转时，其中R、G、B区分别占用5.5ms来产生相应的光。
 技术问题
然而上述技术方案中的光源系统的发光亮度是受限制的，此外，其发光的亮度的模式也比较单一，换句话说，当该投影装置应用于不同场景时，其发光亮度是不可调整的。针对此缺陷，有一些改进的技术方案，通过在色轮上增加Y段，在该Y段涂布黄色荧光粉，由于黄色荧光粉的激发效率要远远高于红色或绿色荧光粉，因此其受激发的效率会大大提高。当投影装置处于高环境光的场景时，其可通过时间保护激光光源打开来使黄色荧光粉被激发产生黄色荧光，以达到提高出光亮度；另一方面，当该投影装置处于环境较暗的场景，例如放映时，可通过控制色轮旋转至Y段时，关闭激光的方式来实现Y段的黄色荧光粉不被激发，以实现降低出光亮度。
然而随着人们生活水平的不断提高，人们开始越来越追求视觉上的享受，也就是说，人们越来越希望看到的图像是非常逼近真实事物的颜色，这就要求投影装置的色域能够足够宽，上述采用Y段黄色荧光粉的方案虽然可提高出光亮度，红激光、绿激光结合黄荧光的输出方案能够产生调制图像，但是由于黄色荧光仅用于提高出光亮度的目的，其调制色域的范围很有限，并且红激光和绿激光价格昂贵，成本过高。。
因此，提供一种能够拓宽色域范围，提升用户视觉效果、节省光源能量、降低成本的色域调整装置及色域调整方法实为必要。
 
 技术解决方案
本申请的目的在于提供一种能够调制宽色域范围图像、且能有效节省光源能量的投影装置及应用于所述投影装置的色域调整方法。
一种投影装置，包括：
光源装置，用于根据指令出射第一基色激光、第二基色激光、第三基色激光和第四混色荧光；所述第一基色激光、第二基色激光和第四混色荧光能够调制出第一色域范围的图像；所述第一基色激光、第三基色激光和第四混色荧光能够调制出第二色域范围的图像；所述第一色域范围和第二色域范围组合成连续色域范围；
控制装置，用于判断待调制图像的像素的色域范围，根据所述色域范围来控制所述光源装置输出所述第一基色激光、第二基色激光、第三基色激光和第四混色荧光中调制所述待调制图像所需要的光。
本实施例中，采用激光来调制图像，能够调制出宽色域的图像，而且还判断待调制图像的像素的色域范围，根据色域范围来控制光源装置输出需要的光，而不需要的光可以关闭，从而可以节省光源能量。
其中，所述光源装置出射的光的亮度和时段与所述指令相对应。
其中，所述第四混色荧光包含第二基色荧光和第三基色荧光，在具体实施例中，可采用第四混色荧光或其中的第二基色荧光或第三基色荧光来作为调制的光源之一。
在其中一个实施例中，当所述待调制图像的像素属于第一色域范围时，所述光源装置输出第一基色激光、第二基色激光和第四混色荧光，以调制所述待调制图像；
当所述待调制图像的像素属于第二色域范围时，所述光源装置输出第一基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像；
当所述待调制图像包含位于第一色域范围的像素以及位于第二色域范围的像素时，所述光源装置输出第一基色激光、第二基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像。
上述提及所述待调制图像的像素属于第一色域范围或属于第二色域范围，是指全部属于，或者绝大部分属于所述第一色域范围或属于第二色域范围，这里所述的绝大部分是指百分之九十以上所述待调制图像的像素属于第一色域范围或属于第二色域范围。
本实施例中，可以根据待调制图像所属的色域范围关闭第二基色激光或第三基色激光，从而可以在能够调节宽色域范围图像的基础上，有效地节省激光光源能量。
而且，本实施例中，当所述待调制图像的像素属于第一色域范围时，所述光源装置输出第一基色激光、第二基色激光和第四混色荧光，以调制所述待调制图像；相对于将第四混色荧光过滤为第二基色荧光，以使得第一基色激光、第二基色激光和第二基色荧光作为三基色光来调制第一色域范围图像的技术方案，可以增加所调制得到的图像的亮度，因为本实施例没有滤除第四混色荧光中的第三基色荧光。
以及，本实施例中，当所述待调制图像的像素属于第二色域范围时，所述光源装置输出第一基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像；相对于将第四混色荧光过滤为第三基色荧光，以使得第一基色激光、第三基色激光和第三基色荧光作为三基色光来调制第二色域范围图像的技术方案，可以增加所调制得到的图像的亮度，因为本实施例没有滤除第四混色荧光中的第二基色荧光。
在其中一个实施例中，所述第一色域范围划分为第一子色域范围和第二子色域范围；所述第二子色域范围相对于第一子色域范围靠近所述第二色域范围；当所述待调制图像的像素属于第一子色域范围时，所述光源装置输出第一基色激光、第二基色激光，以及输出过滤所述第四混色荧光而得到的第二基色荧光，以调制所述待调制图像。
本实施例中，滤除了第四混色荧光中的第三基色荧光而得到第二基色荧光，以第一基色激光、第二基色激光、第二基色荧光来调制第一子色域范围的图像，相对于使用第一基色激光、第二基色激光、第四基色荧光来调制第一子色域范围图像的技术方案，可以降低第二基色激光的使用量，即降低第二基色激光的亮度，从而节省激光光源能量。
在其中一个实施例中，所述第一色域范围划分为第一子色域范围和第二子色域范围；所述第二子色域范围相对于第一子色域范围靠近所述第二色域范围；当所述待调制图像的像素属于第二子色域范围时，控制所述光源装置输出所述第一基色激光、第二基色激光和第四混色荧光的混合光、以及第四混色荧光，以调制所述待调制图像。
本实施例中，在一个时段同时输出第二基色激光和第四混色荧光，而使用二者的混合光作为一种基色光来调制图像，相对于使用第一基色激光、第二基色激光和第四混色荧光来调制第二子色域范围的技术方案，本实施例在一个时段增加输出了第四混色荧光，可以提高调制所得到的图像的整体亮度。
在其中一个实施例中，第二色域划分为第三子色域范围和第四子色域范围；所述第三子色域范围相对于第四子色域范围靠近所述第一色域范围；当所述待调制图像的像素属于第三子色域范围时，控制所述光源装置输出所述第一基色激光、第四混色荧光、以及第三基色激光和第四混色荧光的混合光，以调制所述待调制图像。
本实施例中，在一个时段同时输出第三基色激光和第四混色荧光，而使用二者的混合光作为一种基色光来调制图像，相对于使用第一基色激光、第三基色激光和第四混色荧光来调制第三子色域范围的技术方案，本实施例在一个时段增加输出了第四混色荧光，可以提高调制所得到的图像的整体亮度。
在其中一个实施例中，第二色域划分为第三子色域范围和第四子色域范围；所述第三子色域范围相对于第四子色域范围靠近所述第一色域范围；当所述待调制图像的像素属于第四子色域范围时，控制所述光源装置输出第一基色激光、第三基色激光，以及输出过滤所述第四混色荧光而得到的第三基色荧光，以调制所述待调制图像。
本实施例中，滤除了第四混色荧光中的第二基色荧光而得到第三基色荧光，以第一基色激光、第三基色激光、第三基色荧光来调制第四子色域范围的图像，相对于使用第一基色激光、第三基色激光、第四基色荧光来调制第四子色域范围图像的技术方案，可以降低第三基色激光的使用量，即降低第三基色激光的亮度，从而节省激光光源能量。
在其中一个实施例中，所述光源装置包括：
激发光源，用于发出所述第一基色激光；
波长转换装置，包括转换区和引导区，所述转换区和引导区周期性运动以循环位于所述第一基色激光的光路上；所述转换区用于吸收所述第一基色激光，且产生所述第四混色荧光并出射；所述引导区用于引导所述第一基色激光出射；
第二基色光源，用于发出所述第二基色激光；
第三基色光源，用于发出所述第三基色激光。
在其中一个实施例中，所述光源装置还包括：
滤光装置，包括第一滤光区、第二滤光区和透明区；
所述第一滤光区能够被驱动至所述第四混色荧光的光路上，以过滤所述第四混色荧光而得到第二基色荧光；
所述第二滤光区能够被驱动至所述第四混色荧光的光路上，以过滤所述第四混色荧光而得到第三基色荧光；
所述透明区能够被驱动至所述第四混色荧光的光路上，以使得所述第四混色荧光通过。
在其中一个实施例中，所述第一基色激光为蓝激光；所述第二基色激光为绿激光；所述第三基色激光为红激光；所述第四混色荧光为黄荧光；所述第二基色荧光为绿荧光；所述第三基色荧光为红荧光。
本申请还提供一种应用于所述投影装置的色域调整方法，包括：
判断待调制图像的像素的色域范围，
根据所述判断的色域范围来发出指令，输出第一基色激光、第二基色激光、第三基色激光和第四混色荧光中调制所述待调制图像所需要的光，
其中所述第一基色激光、第二基色激光和第四混色荧光能够调制出第一色域范围的图像；所述第一基色激光、第三基色激光和第四混色荧光能够调制出第二色域范围的图像；所述第一色域范围和第二色域范围组合成连续色域范围。
 有益效果
与现有技术相比较，本申请具有以下优点：
本申请采用激光来调制图像，能够调制出宽色域的图像，而且还判断待调制图像的像素的色域范围，根据色域范围来控制光源装置输出需要的光，而不需要的光可以关闭，从而可以节省光源能量。
 附图说明
图1是本申请投影装置的组成部件的原理示意图；
图2是本申请光源装置实施例一的结构示意图；
图3是本申请光源装置中波长转换装置实施例之一的示意图；
图4是本申请投影装置调制图像的像素色域范围划分示意图；
图5~7是当调制图像像素位于GYB或YRB色域范围时投影装置光源开闭时段实施例以及波长转换装置实施例的示意图；
图8是第二分光滤光片和第三分光滤光片的一实施例的示意图；
图9和10是当调制图像包含位于GYB和YRB色域范围像素时投影装置光源开闭时段实施例以及波长转换装置实施例的示意图；
图11是本申请光源装置设有滤光装置的实施例的示意图；
图12是图11中所述绿光装置具体实施例的示意图；
图13是当调制图像像素位于G’YB色域范围时投影装置光源开闭时段实施例的示意图；
图14是当调制图像像素位于YR’B色域范围时投影装置光源开闭时段实施例的示意图。
 本发明的实施方式
为使本领域的技术人员更好地理解本申请的技术方案，下面结合附图和具体实施方式对本申请做进一步详细描述。
如图1所示，本申请提供一种投影装置，在一个实施例中，包括：控制装置10、光源装置20和空间光调制器30；控制装置10控制光源装置20按照指令输出光，光源装置20输出的光的颜色、亮度、以及输出的光的时段与控制装置10给出的指令相关；光源装置20输出的光照射至空间光调制器30，控制装置10控制空间光调制器30调制光源装置20输出的光，以产生预定的图像。
在一个实施例中，光源装置20的结构示意图如图2所示，所述光源装置20包括蓝激光光源101、红激光光源102、绿激光光源103，其分别分布在光源装置出射光路的两侧，光源装置出射光路上依次设有波长转换装置200、第一分光滤光片301、第二分光滤光片302、第三分光滤光片303。所述第一分光滤光片301反射蓝光、透射黄荧光，蓝激光光源101出射后经所述第一分光滤光片301反射至所述波长转换装置200，激发所述波长转换装置200上的荧光；所述第二分光滤光片302透射蓝光和黄荧光、反射红光，所述红激光光源102的出射光经所述第二分光滤光片302反射至出光光路；所述第三分光滤光片303透射蓝光和黄荧光、反射绿光，所述绿激光光源103的出射光经所述第三分光滤光片303反射至出光光路。
波长转换装置200的结构示意图如图3所示，包括：转换区210、引导区220和驱动马达（图未示）。转换区210和引导区220在驱动马达的驱动下旋转，从而周期性循环位于蓝激光的光路上。本实施例中，引导区220为透射区，用于透射蓝激光。在其它实施例中，引导区220也可以为反射区，用于反射蓝激光。转换区210包含黄荧光材料，用于吸收蓝激光并产生黄荧光。被波长转换装置200透射的光经过如图2所示的分别设置在波长转换装置200的后方、下方的第一反射镜401、第二反射镜402和第三反射镜403，反射至所述第一分光滤光片301然后被反射至出光光路；直接被波长转换装置200反射的光则直接透过所述第一分光滤光片301。
请结合参阅图4，在一个实施例中，当待调制图像的像素属于GYB色域范围时，红激光光源102关闭，光源装置20输出蓝激光、绿激光和黄荧光，以调制所述待调制图像。
具体的，在一个实施例中，以波长转换装置200旋转一周的时间为一个调制周期T，各光源的开闭时段如图5所示，以及波长转换装置200各区段位于蓝激光光路上的时段如图6所示：
其中：低波段表示激光关闭，高波段表示激光开启。
t1时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的引导区220位于蓝激光的光路上，蓝激光透射引导区220，经第一反射镜401401、第二反射镜402、第三反射镜403、第一分光滤光片301反射后，进一步透射第二分光滤光片302、第三分光滤光片303，蓝激光被输出。
t2时段，绿激光光源103开启、蓝激光光源101和红激光光源102关闭，波长转换装置200的转换区210的第一区域位于蓝激光的光路上，所述转换区210吸收蓝激光产生黄荧光经所述第一分光滤光片301透射输出；绿激光经所述第三分光滤光片303反射而被输出。
t3时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的转换区210的第二区域位于蓝激光的光路上，蓝激光激发黄荧光材料而产生黄荧光输出；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射，而被输出。
其中，t1时段、t2时段和t3时段的时长比例可以按照需要进行调配。
在一个实施例中，当待调制图像的像素属于YRB色域范围时，绿激光光源关闭，光源装置20输出蓝激光、红激光和黄荧光，以调制所述待调制图像。
具体的，在一个实施例中，以波长转换装置200旋转一周的时间为一个调制周期T，各光源的开闭时段如图7所示，以及波长转换装置200各区段位于蓝激光光路上的时段如图6所示，其中：
t1时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的引导区220位于蓝激光的光路上，蓝激光透射引导区220，经第一反射镜401、第二反射镜402、第三反射镜403、第一分光滤光片301反射后，进一步透射第二分光滤光片302、第三分光滤光片303，蓝激光被输出。
t2时段，红激光光源102开启、蓝激光光源101和绿激光光源103关闭，波长转换装置200的转换区210的第一区域211位于蓝激光的光路上；红激光经第二分光滤光片302反射后，进一步经第三分光滤光片303透射而被输出。
t3时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的转换区210的第二区域212位于蓝激光的光路上，蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射，而被输出。
可以理解的是，调制YRB色域范围的图像和调制GYB色域范围的图像时，t1时段、t2时段和t3时段的时长比例可以不同，且各三色激光的亮度也可以不同。
在一个实施例中，红激光与黄荧光之间的合光，以及绿激光与黄荧光之间的合光可以利用二者之间的光学扩展量不同而进行合光；激光的光学扩展量比荧光的光学扩展量小。在一个实施例中，第二分光滤光片302、第三分光滤光片303的结构可如图8所示，其中，中央区域320的面积比周围区域310的面积小。红激光通过第二分光滤光片302的中央区域320反射，黄荧光中的红荧光可以通过第二分光滤光片302的周围区域310透射；黄荧光中的绿荧光能够透射第二分光滤光片302的中央区域320和周围区域310。类似的，绿激光通过第三分光滤光片303的中央区域320反射，黄荧光中的绿荧光可以通过第三分光滤光片303的周围区域310透射，黄荧光中的红荧光能够透射第三分光滤光片303的中央区域320和周围区域310。
在一个实施例中，当待调制图像包含位于GYB色域范围的像素以及包含位于YRB色域范围的像素时，光源装置20输出第一基色激光、第二基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像。
具体的，在一个实施例中，以波长转换装置200旋转一周的时间为一个调制周期T，各光源的开闭时段如图9所示，以及波长转换装置200各区段位于蓝激光光路上的时段如图10所示：
其中：低波段表示激光关闭，高波段表示激光开启。
t1时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的引导区220位于蓝激光的光路上，蓝激光透射引导区220，经第一反射镜401、第二反射镜402、第三反射镜403、第一分光滤光片301反射后，进一步透射第二分光滤光片302、第三分光滤光片303，蓝激光被输出。
t2时段，绿激光光源103开启、蓝激光光源101和红激光光源102关闭，波长转换装置200的转换区的第一区域213位于蓝激光的光路上；绿激光经第三分光滤光片303反射而被输出。
t3时段，红激光光源102开启、蓝激光光源101和绿激光光源103关闭，波长转换装置200的转换区的第二区域214位于蓝激光的光路上；红激光经第二分光滤光片302反射、且经第三分光滤光片303透射而被输出。
t4时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的转换区的第三区域215位于蓝激光的光路上，蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射，而被输出。
在一个实施例中，GYB色域范围划分为GG’B色域范围和G’YB色域范围；G’YB色域范围相对于GG’B色域范围更靠近YRB色域范围；YRB色域范围划分为YR’B色域范围和R’RB色域范围，YR’B色域范围相对于R’RB色域范围更靠近GYB色域范围。
在一个实施例中，当待调制图像的像素属于GG’B色域范围时，光源装置20输出蓝激光、绿激光，以及输出过滤黄荧光而得到的绿荧光，以调制待调制图像。
具体的，在一个实施例中，如图11所示，所述光源装置20还包括：滤光装置500。如图12所示，滤光装置500包括第一滤光区510、第二滤光区520、透明区530和驱动马达（图未示）。
本实施例中，蓝激光光源101、绿激光光源103和红激光光源102可按照图5进行开闭，并且将滤光装置的第一滤光区510驱动至黄荧光的光路上，以过滤黄荧光而得到绿荧光，从而使得蓝激光、绿激光和绿荧光输出至空间光调制器30，以用于调制待调制图像。
在一个实施例中，当待调制图像的像素属于R’RB色域范围时，光源装置20输出蓝激光、红激光，以及输出过滤黄荧光而得到的红荧光，以调制待调制图像。
具体的，在一个实施例中，本实施例中，蓝激光光源101、绿激光光源103和红激光光源102可按照图7进行开闭，并且将滤光装置的第二滤光区520驱动至黄荧光的光路上，以过滤黄荧光而得到红荧光，从而使得蓝激光、绿激光和红荧光输出至空间光调制器30，以用于调制待调制图像。
在一个实施例中，当待调制图像的像素属于G’YB色域范围时，光源装置20输出所述蓝激光、绿激光和黄荧光的混合光、以及黄荧光，以调制待调制图像。
具体的，在一个实施例中，滤光装置的透射区被驱动至黄荧光的光路上；以波长转换装置200旋转一周的时间为一个调制周期T，各光源的开闭时段如图13所示，以及波长转换装置200各区段位于蓝激光光路上的时段如图6所示：
t1时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的引导区220位于蓝激光的光路上，蓝激光透射引导区220，经第一反射镜401、第二反射镜402、第三反射镜403、第一分光滤光片301反射后，进一步透射第二分光滤光片302、第三分光滤光片303，蓝激光被输出。
t2时段，绿激光光源103开启、蓝激光光源101开启、以及红激光光源102关闭，波长转换装置200的转换区210的第一区域位于蓝激光的光路上；蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射；绿激光经第三分光滤光片303反射；从而黄荧光与绿激光的混合光被输出。
t3时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的转换区210的第二区域位于蓝激光的光路上，蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射，而被输出。
在一个实施例中，当待调制图像的像素属于YR’B色域范围时，光源装置20输出蓝激光、黄荧光、以及红激光和黄荧光的混合光，以调制待调制图像。
具体的，在一个实施例中，滤光装置的透射区被驱动至黄荧光的光路上；以波长转换装置200旋转一周的时间为一个调制周期T，各光源的开闭时段如图14所示，以及波长转换装置200各区段位于蓝激光光路上的时段可如图6所示：
t1时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的引导区220位于蓝激光的光路上，蓝激光透射引导区220，经第一反射镜401、第二反射镜402、第三反射镜403、第一分光滤光片301反射后，进一步透射第二分光滤光片302、第三分光滤光片303，蓝激光被输出。
t2时段，红激光光源102开启、蓝激光光源101开启、以及绿激光光源103关闭，波长转换装置200的转换区210的第一区域位于蓝激光的光路上；蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射；红激光经第二分光滤光片302反射，并进一步经第三分光滤光片303透射；从而黄荧光与红激光的混合光被输出。
t3时段，蓝激光光源101开启、绿激光光源103和红激光光源102关闭，波长转换装置200的转换区210的第二区域位于蓝激光的光路上，蓝激光激发黄荧光材料而产生黄荧光；黄荧光出射至第一分光滤光片301，并且进一步经第一分光滤光片301、第二分光滤光片302、第三分光滤光片303透射，而被输出。
以上仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围。
 

Claims (10)

1、一种投影装置，其特征在于，包括：
光源装置，用于根据指令出射第一基色激光、第二基色激光、第三基色激光和第四混色荧光；所述第一基色激光、第二基色激光和第四混色荧光能够调制出第一色域范围的图像；所述第一基色激光、第三基色激光和第四混色荧光能够调制出第二色域范围的图像；所述第一色域范围和第二色域范围组合成连续色域范围；
控制装置，用于判断待调制图像的像素的色域范围，根据所述色域范围来发出所述指令，控制所述光源装置输出所述第一基色激光、第二基色激光、第三基色激光和第四混色荧光中调制所述待调制图像所需要的光。
2、根据权利要求1所述的投影装置，其特征在于：
所述第四混色荧光包含第二基色荧光和第三基色荧光；
当所述待调制图像的像素属于第一色域范围时，所述光源装置输出第一基色激光、第二基色激光和第四混色荧光，以调制所述待调制图像；
当所述待调制图像的像素属于第二色域范围时，所述光源装置输出第一基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像；
当所述待调制图像包含位于第一色域范围的像素以及位于第二色域范围的像素时，所述光源装置输出第一基色激光、第二基色激光、第三基色激光和第四混色荧光，以调制所述待调制图像。
3、根据权利要求1所述的投影装置，其特征在于，所述第四混色荧光包含第二基色荧光和第三基色荧光；所述第一色域范围划分为第一子色域范围和第二子色域范围；所述第二子色域范围相对于第一子色域范围靠近所述第二色域范围；
当所述待调制图像的像素属于第一子色域范围时，所述光源装置输出第一基色激光、第二基色激光，以及输出过滤所述第四混色荧光而得到的第二基色荧光，以调制所述待调制图像。
4、根据权利要求1所述的投影装置，其特征在于，所述第四混色荧光包含第二基色荧光和第三基色荧光；所述第一色域范围划分为第一子色域范围和第二子色域范围；所述第二子色域范围相对于第一子色域范围靠近所述第二色域范围；
当所述待调制图像的像素属于第二子色域范围时，控制所述光源装置输出所述第一基色激光、第二基色激光和第四混色荧光的混合光、以及第四混色荧光，以调制所述待调制图像。
5、根据权利要求1所述的投影装置，其特征在于，所述第四混色荧光包含第二基色荧光和第三基色荧光；第二色域划分为第三子色域范围和第四子色域范围；所述第三子色域范围相对于第四子色域范围靠近所述第一色域范围；
当所述待调制图像的像素属于第三子色域范围时，控制所述光源装置输出所述第一基色激光、第四混色荧光、以及第三基色激光和第四混色荧光的混合光，以调制所述待调制图像。
6、根据权利要求1所述的投影装置，其特征在于，所述第四混色荧光包含第二基色荧光和第三基色荧光；第二色域划分为第三子色域范围和第四子色域范围；所述第三子色域范围相对于第四子色域范围靠近所述第一色域范围；
当所述待调制图像的像素属于第四子色域范围时，控制所述光源装置输出第一基色激光、第三基色激光，以及输出过滤所述第四混色荧光而得到的第三基色荧光，以调制所述待调制图像。
7、根据权利要求1所述的投影装置，其特征在于，所述光源装置包括：
激发光源，用于发出所述第一基色激光；
波长转换装置，包括转换区和引导区，所述转换区和引导区周期性运动以循环位于所述第一基色激光的光路上；所述转换区用于吸收所述第一基色激光，且产生所述第四混色荧光并出射；所述引导区用于引导所述第一基色激光出射；
第二基色光源，用于发出所述第二基色激光；
第三基色光源，用于发出所述第三基色激光。
8、根据权利要求7所述的投影装置，其特征在于，所述光源装置还包括：
滤光装置，包括第一滤光区、第二滤光区和透明区；
所述第一滤光区能够被驱动至所述第四混色荧光的光路上，以过滤所述第四混色荧光而得到第二基色荧光；
所述第二滤光区能够被驱动至所述第四混色荧光的光路上，以过滤所述第四混色荧光而得到第三基色荧光；
所述透明区能够被驱动至所述第四混色荧光的光路上，以使得所述第四混色荧光通过。
9、根据权利要求1所述的投影装置，其特征在于，所述第一基色激光为蓝激光；所述第二基色激光为绿激光；所述第三基色激光为红激光；所述第四混色荧光为黄荧光；所述第二基色荧光为绿荧光；所述第三基色荧光为红荧光。
10、一种应用于如权利要求1~9任一项所述的投影装置的色域调整方法，其特征在于，包括：
判断待调制图像的像素的色域范围，
根据所述判断的色域范围来发出指令，输出第一基色激光、第二基色激光、第三基色激光和第四混色荧光中调制所述待调制图像所需要的光，
其中所述第一基色激光、第二基色激光和第四混色荧光能够调制出第一色域范围的图像；所述第一基色激光、第三基色激光和第四混色荧光能够调制出第二色域范围的图像；所述第一色域范围和第二色域范围组合成连续色域范围。
 
 
PCT/CN2018/080894 2018-01-23 2018-03-28 投影装置及色域调整方法 WO2019144494A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18902127.2A EP3745204A4 (en) 2018-01-23 2018-03-28 PROJECTION DEVICE AND COLOR SPACE ADJUSTMENT PROCEDURE
US16/964,165 US11650490B2 (en) 2018-01-23 2018-03-28 Projection device and color gamut adjustment method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810062933.1A CN110068982B (zh) 2018-01-23 2018-01-23 投影装置及色域调整方法
CN201810062933.1 2018-01-23

Publications (1)

Publication Number Publication Date
WO2019144494A1 true WO2019144494A1 (zh) 2019-08-01

Family

ID=67365059

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/080894 WO2019144494A1 (zh) 2018-01-23 2018-03-28 投影装置及色域调整方法

Country Status (4)

Country Link
US (1) US11650490B2 (zh)
EP (1) EP3745204A4 (zh)
CN (1) CN110068982B (zh)
WO (1) WO2019144494A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113495411A (zh) * 2020-03-19 2021-10-12 中强光电股份有限公司 投影装置及其多色域模式显示方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110874002B (zh) * 2018-08-31 2021-12-21 深圳光峰科技股份有限公司 动态调节显示系统色域的系统、方法及显示系统
CN112147834B (zh) * 2019-06-28 2022-05-17 成都理想境界科技有限公司 一种光源、投影显示装置及光源调制方法
CN110673430A (zh) * 2019-10-11 2020-01-10 山西汉威激光科技股份有限公司 一种通过陷波合束集成的大色域激光光源系统
CN113495413B (zh) 2020-03-20 2023-12-15 中强光电股份有限公司 照明系统与投影装置
CN115174880B (zh) * 2022-09-08 2023-03-10 江西渊薮信息科技有限公司 一种提高色域的投影系统、投影仪及投影方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101582249A (zh) * 2009-05-25 2009-11-18 深圳华映显示科技有限公司 一种场色序法显示器及其色彩序列控制方法
CN101984487A (zh) * 2010-11-02 2011-03-09 友达光电股份有限公司 主动式矩阵有机发光二极管显示面板的驱动方法
CN102568376A (zh) * 2010-12-13 2012-07-11 乐金显示有限公司 用于驱动有机发光显示装置的设备和方法
CN105022212A (zh) * 2014-04-23 2015-11-04 深圳市绎立锐光科技开发有限公司 光源系统、投影系统及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006017809A (ja) 2004-06-30 2006-01-19 Toshiba Corp プロジェクション映像表示装置
CN1811897A (zh) 2005-01-24 2006-08-02 乐金电子（沈阳）有限公司 图像显示设备的画面亮度控制装置及方法
CN101369090B (zh) 2007-08-17 2010-08-11 青岛海信电器股份有限公司 控制成像装置与色轮同步成像的方法和系统
CN101750855B (zh) 2008-12-19 2011-11-16 绎立锐光科技开发(深圳)有限公司 投影系统、调色装置的保护方法及装置
CN102645828B (zh) 2011-12-01 2014-11-05 深圳市光峰光电技术有限公司 投影装置、显示用光源系统及其控制方法
CN105739226B (zh) 2014-12-08 2019-06-21 深圳光峰科技股份有限公司 投影系统
JP6774168B2 (ja) * 2015-04-07 2020-10-21 株式会社小糸製作所 車両用表示システム
CN106292142B (zh) * 2015-05-14 2018-12-11 深圳市光峰光电技术有限公司 一种发光装置及其发光控制方法、投影设备
CN106021050A (zh) 2016-05-20 2016-10-12 海信集团有限公司 一种激光投影设备开机运行方法
US20180180251A1 (en) * 2016-12-27 2018-06-28 Hisense Co., Ltd. Laser projection device and laser source thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101582249A (zh) * 2009-05-25 2009-11-18 深圳华映显示科技有限公司 一种场色序法显示器及其色彩序列控制方法
CN101984487A (zh) * 2010-11-02 2011-03-09 友达光电股份有限公司 主动式矩阵有机发光二极管显示面板的驱动方法
CN102568376A (zh) * 2010-12-13 2012-07-11 乐金显示有限公司 用于驱动有机发光显示装置的设备和方法
CN105022212A (zh) * 2014-04-23 2015-11-04 深圳市绎立锐光科技开发有限公司 光源系统、投影系统及方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3745204A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113495411A (zh) * 2020-03-19 2021-10-12 中强光电股份有限公司 投影装置及其多色域模式显示方法
US11803112B2 (en) 2020-03-19 2023-10-31 Coretronic Corporation Projection device and display method thereof
CN113495411B (zh) * 2020-03-19 2024-02-06 中强光电股份有限公司 投影装置及其多色域模式显示方法

Also Published As

Publication number Publication date
EP3745204A4 (en) 2021-10-13
US20210149287A1 (en) 2021-05-20
CN110068982B (zh) 2021-09-21
EP3745204A1 (en) 2020-12-02
US11650490B2 (en) 2023-05-16
CN110068982A (zh) 2019-07-30

Similar Documents

Publication Publication Date Title
WO2019144494A1 (zh) 投影装置及色域调整方法
JP6979389B2 (ja) 光源システム及び投影表示装置
JP6364503B2 (ja) 光源システム及び投影システム
KR101181886B1 (ko) 광원 장치, 투영 장치 및 투영 방법
US8272745B2 (en) Light source device, projection apparatus, and projection method
US6843566B2 (en) Lighting device and projection type display apparatus using the same
TWI584049B (zh) 合光控制系統
JP2018513412A (ja) 光源システム及び投影システム
JP2007218956A (ja) 投射型画像表示装置
CN110944161B (zh) 投影系统及投影显示方法
WO2019061821A1 (zh) 光源系统及应用所述光源系统的投影系统
US11669001B2 (en) Projection display system
US20050219475A1 (en) Illumination device integrated into a projection type display, and projection type projector
CA3042550C (en) Rgb projector with multi-laser broadband light source and system for dynamically controlling image contrast ratio
US10965918B2 (en) Projection system and image modulation method
CN110456603A (zh) 投影显示光学系统
CN216848446U (zh) 一种显示设备及其光源
CN216696968U (zh) 一种显示设备及其光源
CN115720261A (zh) 一种显示设备、控制方法及光源

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: 18902127

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2018902127

Country of ref document: EP

Effective date: 20200824