A dynamic wavelength conversion device and method capable of simultaneously ensuring brightness and color gamut

Abstract

The present invention relates to a dynamic wavelength conversion device and method capable of simultaneously ensuring brightness and color gamut, the device comprising: a driving unit, which controls and drives a bearing unit by outputting a rotational driving force and a mobile driving force; the bearing unit, which is used to rotate around a rotation axis as the axis according to the rotational driving force output by the driving unit, and to move in position according to the mobile driving force delivered by the driving unit, the bearing unit comprising a light-receiving contact surface capable of contacting excitation light incident through an optical path; and a plurality of wavelength conversion sub-units, the plurality of wavelength conversion sub-units being arranged on the light-receiving contact surface of the bearing unit according to a pre-set distribution rule, so that when the bearing unit is rotated or moved in position under the control of the rotational driving force and the mobile driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion sub-units; wherein the plurality of wavelength conversion sub-units are composed of different wavelength conversion materials.

Description

Technical Field

[0001] The present invention relates to the field of optics, and more particularly, to a dynamic wavelength conversion device capable of simultaneously ensuring brightness and color gamut. Background Art

[0002] A projector is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, game consoles, DVs and other devices through different interfaces to play the corresponding video signals. However, the light source system used by current projectors has a problem of mutual restriction between color and brightness. In the case of meeting the brightness of the light source system, the projector needs to sacrifice the color gamut or color ratio. In the case of specific requirements for the color gamut or color ratio, the projector needs to sacrifice the brightness of the light source system. Therefore, in order to meet the needs of different users, there are various types of projectors on the market.

[0003] The main reason for this problem is that the current solution that can freely adjust color and brightness adjusts the color and brightness by adjusting the output intensity of each color during different color output periods. Specifically: Assume that there are three colors: C1, C2 and C3, the time proportions corresponding to the three colors are: T1, T2 and T3, and the intensities of the three colors are: B1, B2 and B3. Usually, the above parameters need to meet the following conditions: T1+T2+T3=T (constant) and B1+B2+B3=B (constant). Therefore, the respective amounts of the three colors are B1T1, B2T2, and B3T3. Different types of projectors achieve changes in brightness and color by adjusting their respective proportions.

[0004] The disadvantages of the prior art are: first, after the three colors C1, C2 and C3 are determined, the hues of these three colors are fixed. Although the hue can be modified by mixing the respective colors, the modified hue can only be smaller than the selected hue and the saturation will be reduced. Secondly, although B1, B2 and B3, as well as T1, T2 and T3 can be modified to adjust the color temperature, color or overall brightness, the flexibility of adjustment is limited by the hardware under the limitation of constants B and T. This solution will lose the efficiency of the light source in order to achieve a specific color output, thus causing energy waste, not energy-saving and not environmentally friendly. Summary of the invention

[0005] In order to solve the above problems, the present application uses a special wavelength conversion device to flexibly select color output, which is similar to combining a high-brightness projector and a brilliant color projector into one, providing users with flexible choices.

[0006] According to one aspect of the present invention, there is provided a dynamic wavelength conversion device capable of simultaneously ensuring brightness and color gamut, the device comprising:

[0007] A driving unit controls and drives the carrying unit by outputting a rotational driving force and a moving driving force;

[0008] a bearing unit, configured to rotate about a rotation axis according to a rotational driving force output by the driving unit, and to move in position according to a movement driving force delivered by the driving unit, the bearing unit comprising a light receiving contact surface capable of contacting the excitation light incident through the optical path; and

[0009] A plurality of wavelength conversion subunits, wherein the plurality of wavelength conversion subunits are arranged on the light receiving contact surface of the bearing unit according to a preset distribution rule, so that when the bearing unit is rotated or moved under the control and drive of the rotation driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion subunits;

[0010] The plurality of wavelength conversion sub-units are made of different wavelength conversion materials.

[0011] Preferably, it further comprises a power supply unit for providing power to the driving unit, and the driving unit is a motor.

[0012] Preferably, when the excitation light irradiates the wavelength conversion subunit, the wavelength of the stimulated light generated is different from the wavelength of the excitation light.

[0013] Preferably, it further comprises a fixing unit for fixedly connecting the bearing unit with the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit.

[0014] Preferably, the bearing unit is a cylindrical device, and the outer surface of the cylindrical device is a light receiving contact surface.

[0015] Preferably, the plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in the form of stripes.

[0016] Preferably, the bearing unit is a disc-shaped device, and the light-receiving side of the disc-shaped device is a light-receiving contact surface.

[0017] Preferably, the plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in a circular ring form.

[0018] Preferably, the areas of the plurality of wavelength conversion sub-units are different, and the wavelength conversion material of each of the plurality of wavelength conversion sub-units is determined based on the color gamut parameter, the color parameter and the brightness parameter.

[0019] Preferably, any wavelength conversion subunit among the plurality of wavelength conversion subunits comprises a plurality of regions that are not connected to each other.

[0020] According to another aspect of the present invention, a dynamic wavelength conversion method capable of simultaneously ensuring brightness and color gamut is provided, the method comprising:

[0021] The bearing unit is caused to rotate about the rotation axis according to the rotation driving force output by the driving unit, and the bearing unit is caused to move according to the movement driving force output by the driving unit, wherein the bearing unit includes a light receiving contact surface capable of contacting the excitation light incident through the optical path; and

[0022] A plurality of wavelength conversion sub-units are arranged on the light receiving contact surface of the carrier unit according to a preset distribution rule, so that when the carrier unit is rotated or moved under the control and drive of the rotation driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion sub-units;

[0023] The plurality of wavelength conversion sub-units are made of different wavelength conversion materials.

[0024] Preferably, the method further comprises providing power using a power supply device.

[0025] Preferably, when the excitation light irradiates the wavelength conversion subunit, the wavelength of the stimulated light generated is different from the wavelength of the excitation light.

[0026] Preferably, the method further comprises using a fixing unit to fixedly connect the bearing unit and the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit.

[0027] Preferably, the bearing unit is a cylindrical device, and the outer surface of the cylindrical device is a light receiving contact surface.

[0028] Preferably, the plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in the form of stripes.

[0029] Preferably, the bearing unit is a disc-shaped device, and the light-receiving side of the disc-shaped device is a light-receiving contact surface.

[0030] Preferably, the plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in a circular ring form.

[0031] Preferably, the areas of the plurality of wavelength conversion sub-units are different, and the wavelength conversion material of each of the plurality of wavelength conversion sub-units is determined based on the color gamut parameter, the color parameter and the brightness parameter.

[0032] Preferably, any wavelength conversion subunit among the plurality of wavelength conversion subunits comprises a plurality of regions that are not connected to each other.

[0033] This application is to achieve dual mode selection of high brightness and wide color gamut in a single device through technical innovation based on this technical feature. This application can enhance the performance of light sources and application projectors, realize full function of brightness, color gamut, and color on a single device, realize multi-machine integration, and bring users the ultimate choice. In addition, unlike other methods, this application can take into account brightness and color at the same time, which has an unsurpassed advantage in the same level of projectors.

[0034] The technical solution of the present application can be used for projector light sources, thereby achieving the ability to display different colors and color gamuts on the same projector through different area colors. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] A more complete understanding of exemplary embodiments of the present invention may be obtained by referring to the following drawings:

[0036] Figure 1 It is a schematic structural diagram of a drum-type wavelength conversion device according to a preferred embodiment of the present invention;

[0037] Figure 2 It is a schematic structural diagram of a drum-type wavelength conversion device in which a wavelength conversion material is arranged according to a preferred embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of a disc-type wavelength conversion device according to a preferred embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the structure of a dynamic wavelength conversion device capable of simultaneously ensuring brightness and color gamut according to a preferred embodiment of the present invention; and

[0040] Figure 5 The figure is a flow chart of a dynamic wavelength conversion method capable of simultaneously ensuring brightness and color gamut according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0041] Now, exemplary embodiments of the present invention are described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units / elements are marked with the same reference numerals.

[0042] Unless otherwise specified, the terms (including technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0043] Figure 1 FIG. 2 is a schematic diagram of the structure of a drum-type wavelength conversion device according to a preferred embodiment of the present invention. Figure 1 As shown, the structure of the drum-type wavelength conversion device 100 is a hollow cylinder. In order to perform wavelength conversion, a material for wavelength conversion is coated on the outer surface of the drum-type wavelength conversion device 100 (i.e., the side of the cylinder). The wavelength conversion material 103 is capable of converting the wavelength of the incident excitation light to form stimulated light with a wavelength different from that of the excitation light. The incident point of the incident excitation light 101 is within the range of the wavelength conversion material 103, and therefore, the wavelength can be converted via the wavelength conversion material 103 to form stimulated light 102 with a different wavelength. In addition, the cylindrical fixing tube of the drum-type wavelength conversion device 100 is fixed to the motor 104 by a fixing auxiliary 105. As shown Figure 1 The cylindrical fixing tube is located on the upper surface or the lower surface of the drum-type wavelength conversion device 100 and is used to support the outer surface of the drum-type wavelength conversion device 100 and fix the cylinder. Figure 1 The cylindrical fixing tube is shown as a cross shape, but it should be understood by those skilled in the art that the cylindrical fixing tube can be any shape that can achieve a supporting or fixing effect. The motor 104 can rotate and cause the drum-type wavelength conversion device 100 to move axially along the axis of the cylinder by rotating. It can be seen that, driven by the motor 104, the drum-type wavelength conversion device 100 can roll along the axis. This rolling can enable the incident point of the excitation light 101 to fall on different positions on the side of the cylinder. For this reason, when the excitation light 101 is irradiated onto the wavelength conversion material 103, the wavelength of the generated stimulated light 102 is different from the wavelength of the excitation light 101, and the stimulated light 102 reflects out of the wavelength conversion device. In addition, by arranging an optical device in the optical path, the stimulated light 102 can be collected for use.

[0044] Figure 2 FIG. 2 is a schematic structural diagram of a drum-type wavelength conversion device 200 in which wavelength conversion materials are arranged according to a preferred embodiment of the present invention. Figure 2 As shown, according to Figure 1Based on the drum-type wavelength conversion device 100 shown in the figure, the surface of the drum is divided into a plurality of regions: region 1, region 2, region 3 and region 4. Preferably, the drum-type wavelength conversion device 200 can set the area size of each region and the wavelength conversion material coated thereon according to actual requirements or manufacturer preferences. Figure 2 As shown in the figure, the side surface of the cylinder, i.e., the side surface of the drum-type wavelength conversion device 200, is divided into four regions represented by different symbols. At least two regions among region 1, region 2, region 3, and region 4 are coated with different wavelength conversion materials. In a preferred embodiment, region 1, region 2, region 3, and region 4 are all coated with different wavelength conversion materials. Figure 2 As shown, region 1 is coated with wavelength conversion material A, region 2 is coated with wavelength conversion material B, region 3 is coated with wavelength conversion material C, and region 4 is coated with wavelength conversion material D. Preferably, wavelength conversion materials AD are different wavelength conversion materials, so that region 1, region 2, region 3, and region 4 can convert the same excitation light into stimulated light of different wavelengths.

[0045] In addition, different areas can be switched by the axial rotation and left and right stepping of the motor 201, which is equivalent to integrating 4 wavelength conversion devices into the device. According to the user's choice, the drum-type wavelength conversion device 200 can freely switch the incident point of the excitation light, thereby realizing different wavelength conversions. Since the optical path remains unchanged during the switching process, only the position of the drum-type wavelength conversion device 200 is changed, the stability of the system can be guaranteed. The wavelength conversion materials of each area in the drum-type wavelength conversion device 200 can be selected separately according to the requirements of color gamut, color and brightness. Although the present application is described with four areas, technicians in the relevant field should understand that the drum-type wavelength conversion device 200 can adopt any reasonable number of areas.

[0046] In addition, the cylindrical fixing tube of the drum-type wavelength conversion device 200 is fixed to the motor 201 through the fixing auxiliary 202. Figure 2 The cylindrical fixing tube is located on the upper surface or the lower surface of the drum-type wavelength conversion device 200 and is used to support the outer surface of the drum-type wavelength conversion device 200 and fix the cylinder. Figure 2The cylindrical fixing tube is shown as a cross shape, but it should be understood by those skilled in the art that the cylindrical fixing tube can be any shape that can achieve a supporting or fixing effect. The motor 201 can rotate and cause the drum-type wavelength conversion device 200 to move axially along the axis of the cylinder by rotating. It can be seen that, driven by the motor 201, the drum-type wavelength conversion device 200 can roll along the axis. This rolling enables the incident point of the excitation light to fall on different positions on the side of the cylinder. For this reason, when the excitation light is irradiated onto the wavelength conversion material AD in regions 1, 2, 3, and 4, the wavelength of the stimulated light generated is different from the wavelength of the excitation light, and the stimulated light is reflected out of the drum-type wavelength conversion device 200. In addition, by arranging an optical device in the optical path, the stimulated light can be collected for use.

[0047] Figure 3 FIG. 3 is a schematic structural diagram of a disk-type wavelength conversion device 300 according to a preferred embodiment of the present invention. Figure 3 As shown, the present application forms a disc-type wavelength conversion device 300 based on a circular disc 301. One side surface of the disc 301 is divided into a plurality of annular areas: area 1, area 2, area 3 and area 4. Preferably, the disc-type wavelength conversion device 300 can set the area size and the wavelength conversion material coated on each area according to actual requirements or manufacturer preferences. Figure 3 As shown in the figure, the side surface of the cylinder, i.e., the side surface of the disc-type wavelength conversion device 300, is divided into four regions represented by different symbols. At least two regions among region 1, region 2, region 3, and region 4 are coated with different wavelength conversion materials. The areas of region 1, region 2, region 3, and region 4 increase in sequence. Alternatively, the areas of region 1, region 2, region 3, and region 4 are set to be the same or approximately the same.

[0048] In a preferred embodiment, region 1, region 2, region 3, and region 4 are all coated with different wavelength conversion materials. Figure 3 As shown, region 1 may be coated with wavelength conversion material A, region 2 may be coated with wavelength conversion material B, region 3 may be coated with wavelength conversion material C, and region 4 may be coated with wavelength conversion material D. Preferably, wavelength conversion materials AD are different wavelength conversion materials, so that region 1, region 2, region 3, and region 4 can convert the same excitation light into stimulated light of different wavelengths.

[0049] In addition, different areas can be switched by rotating the motor with the center of the circle as the axis and stepping the bracket left and right, which is equivalent to integrating 4 wavelength conversion devices into the device. According to the user's choice, the disc-type wavelength conversion device 300 can freely switch the incident point of the excitation light, thereby realizing different wavelength conversions. Since the optical path remains unchanged during the switching process, only the position of the disc-type wavelength conversion device 300 is changed, the stability of the system can be guaranteed. The wavelength conversion materials of each area in the disc-type wavelength conversion device 300 can be selected separately according to the requirements of color gamut, color and brightness. Although the present application is described with four areas, technicians in the relevant field should understand that the disc-type wavelength conversion device 300 can adopt any reasonable number of areas.

[0050] In addition, the center of the disk-type wavelength conversion device 300 is fixed on the motor. Figure 3 As shown, the motor is connected to the bracket so that the motor can be supported by the bracket. The motor can rotate and rotate the disc-type wavelength conversion device 300 along the center of the circle. This rotation, in conjunction with the movement of the bracket, can enable the incident point of the excitation light to fall on different areas of the disc. For this reason, when the excitation light is irradiated onto the wavelength conversion material AD in area 1, area 2, area 3, and area 4, the wavelength of the generated stimulated light is different from the wavelength of the excitation light, and the stimulated light is reflected out of the disc-type wavelength conversion device 300. In addition, by arranging an optical device in the optical path, the stimulated light can be collected for use.

[0051] Figure 4 The structure diagram of the dynamic wavelength conversion device 400 capable of simultaneously ensuring brightness and color gamut according to a preferred embodiment of the present invention. The dynamic wavelength conversion device 400 can cause the bearing unit to rotate around the rotation axis according to the rotational driving force output by the driving unit, and cause the bearing unit to move according to the movement driving force output by the driving unit, and the bearing unit includes a light-receiving contact surface capable of contacting the excitation light incident through the optical path. In addition, the dynamic wavelength conversion device 400 arranges a plurality of wavelength conversion sub-units on the light-receiving contact surface of the bearing unit according to a pre-set distribution rule, so that when the bearing unit rotates or moves under the control of the rotational driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion sub-units.

[0052] Preferably, the dynamic wavelength conversion device 400 comprises: a driving unit 401, a bearing unit 402, a power supply unit 403, a fixing unit 404 and a plurality of wavelength conversion sub-units 1, 2, ... N. Preferably, the driving unit 401 controls and drives the bearing unit by outputting a rotational driving force and a movement driving force. The driving unit 401 may be, for example, a motor.

[0053] Preferably, the bearing unit 402 is used to rotate with the rotation axis as the axis according to the rotational driving force output by the driving unit, and to move the position according to the movement driving force delivered by the driving unit, and the bearing unit includes a light-receiving contact surface that can contact the excitation light incident through the optical path. The bearing unit 402 is a cylindrical device, and the outer surface of the cylindrical device is the light-receiving contact surface. Preferably, the bearing unit 402 is a disc-shaped device, and the light-receiving side of the disc-shaped device is the light-receiving contact surface.

[0054] Preferably, a plurality of wavelength conversion subunits are arranged on the light receiving contact surface of the bearing unit according to a preset distribution rule, so that when the bearing unit is rotated or moved under the control and drive of the rotation driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion subunits. The plurality of wavelength conversion subunits are composed of different wavelength conversion materials. The wavelength of the stimulated light generated when the excitation light is irradiated on the wavelength conversion subunit is different from the wavelength of the excitation light.

[0055] When the bearing unit 402 is a cylindrical device, and the outer surface of the cylindrical device is the light-receiving contact surface. Preferably, the multiple wavelength conversion sub-units are distributed on the light-receiving contact surface in the form of stripes. Preferably, when the bearing unit 402 is a disk-shaped device, and the light-receiving side of the disk-shaped device is the light-receiving contact surface. The multiple wavelength conversion sub-units are distributed on the light-receiving contact surface in the form of a ring. The areas of the multiple wavelength conversion sub-units are different, and the wavelength conversion material of each of the multiple wavelength conversion sub-units is determined based on the color gamut parameter, the color parameter and the brightness parameter. Preferably, any wavelength conversion sub-unit of the multiple wavelength conversion sub-units includes multiple areas that are not connected to each other.

[0056] Preferably, the power supply unit 403 is used to provide power to the driving unit. Generally, the power supply unit 403 can be any device capable of providing power to the driving unit.

[0057] Preferably, the fixing unit 404 is used to fixedly connect the bearing unit and the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit.

[0058] Figure 5The present invention is a flowchart of a dynamic wavelength conversion method 500 capable of simultaneously ensuring brightness and color gamut according to a preferred embodiment of the present invention. The dynamic wavelength conversion method 500 can cause the bearing unit to rotate around the rotation axis according to the rotational driving force output by the driving unit, and cause the bearing unit to move according to the movement driving force output by the driving unit, and the bearing unit includes a light-receiving contact surface capable of contacting the excitation light incident through the optical path. In addition, the dynamic wavelength conversion method 500 arranges a plurality of wavelength conversion sub-units on the light-receiving contact surface of the bearing unit according to a pre-set distribution rule, so that when the bearing unit rotates or moves under the control of the rotational driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion sub-units.

[0059] Preferably, the dynamic wavelength conversion method 500 starts at step 501. In step 501, the bearing unit is prompted to rotate around the rotation axis according to the rotation driving force output by the driving unit.

[0060] In step 502, the carrying unit is caused to move in position according to the moving driving force output by the driving unit, and the carrying unit includes a light receiving contact surface capable of contacting the excitation light incident through the optical path.

[0061] In step 503, multiple wavelength conversion sub-units are arranged on the light receiving contact surface of the bearing unit according to a preset distribution rule, so that when the bearing unit is rotated or moved under the control of the rotation driving force and the movement driving force, the incident point of the excitation light can fall into any one of the multiple wavelength conversion sub-units. The multiple wavelength conversion sub-units are composed of different wavelength conversion materials. When the excitation light is irradiated on the wavelength conversion sub-unit, the wavelength of the stimulated light generated is different from the wavelength of the excitation light.

[0062] Preferably, when the bearing unit is a cylindrical device, and the outer surface of the cylindrical device is the light-receiving contact surface. Preferably, the multiple wavelength conversion sub-units are distributed on the light-receiving contact surface in the form of stripes. When the bearing unit is a disc-shaped device, and the light-receiving side of the disc-shaped device is the light-receiving contact surface. The multiple wavelength conversion sub-units are distributed on the light-receiving contact surface in the form of a ring. The areas of the multiple wavelength conversion sub-units are different, and the wavelength conversion material of each of the multiple wavelength conversion sub-units is determined based on the color gamut parameter, the color parameter and the brightness parameter. Preferably, any wavelength conversion sub-unit of the multiple wavelength conversion sub-units includes multiple areas that are not connected to each other.

[0063] In addition, the dynamic wavelength conversion method 500 further includes providing power using a power supply device.

[0064] In addition, the dynamic wavelength conversion method 500 further includes using a fixing unit to fixedly connect the bearing unit and the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit.

[0065] The invention has been described above with reference to a few embodiments. However, it is readily apparent to a person skilled in the art that other embodiments than the ones disclosed above are equally within the scope of the invention, as defined by the appended patent claims.

[0066] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a / said / the [means, components, etc.]" are to be openly interpreted as at least one instance of said means, components, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not necessarily have to be performed in the exact order disclosed, unless explicitly stated otherwise.

Claims

1. A dynamic wavelength conversion device capable of simultaneously ensuring brightness and color gamut, the device comprising: A driving unit controls and drives the carrying unit by outputting a rotational driving force and a moving driving force; A bearing unit, configured to rotate about a rotation axis according to a rotational driving force output by the driving unit, and to move in position according to a movement driving force delivered by the driving unit, wherein the bearing unit includes a light receiving contact surface capable of contacting the excitation light incident through the optical path; as well as A plurality of wavelength conversion subunits, wherein the plurality of wavelength conversion subunits are arranged on the light receiving contact surface of the bearing unit according to a preset distribution rule, so that when the bearing unit is rotated or moved under the control and drive of the rotation driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion subunits; wherein the plurality of wavelength conversion subunits are composed of different wavelength conversion materials; Also included is a fixing unit, used for fixedly connecting the bearing unit with the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit; The bearing unit is a cylindrical device, and the outer surface of the cylindrical device is a light receiving contact surface; The plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in the form of stripes, and the arrangement direction of the stripes is the same as the direction of the rotation axis. 2 . The device according to claim 1 , further comprising a power supply unit for providing power to the driving unit, and the driving unit is a motor. 3 . The device according to claim 1 , wherein the wavelength of the stimulated light generated when the excitation light is irradiated onto the wavelength conversion subunit is different from the wavelength of the excitation light.

4. The device according to any one of claims 1 to 2, wherein the plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in a circular ring form.

5. The device according to any one of claims 1-2, wherein the areas of the plurality of wavelength conversion subunits are different, and the wavelength conversion material of each of the plurality of wavelength conversion subunits is determined based on a color gamut parameter, a color parameter and a brightness parameter. 6 . The device according to claim 1 , wherein any wavelength conversion subunit among the plurality of wavelength conversion subunits comprises a plurality of regions that are not connected to each other.

7. A dynamic wavelength conversion method capable of simultaneously ensuring brightness and color gamut, the method comprising: The bearing unit is caused to rotate about the rotation axis according to the rotation driving force output by the driving unit, and the bearing unit is caused to move according to the movement driving force output by the driving unit, wherein the bearing unit includes a light receiving contact surface capable of contacting the excitation light incident through the optical path; and A plurality of wavelength conversion sub-units are arranged on the light receiving contact surface of the carrier unit according to a preset distribution rule, so that when the carrier unit is rotated or moved under the control and drive of the rotation driving force and the movement driving force, the incident point of the excitation light can fall within any one of the plurality of wavelength conversion sub-units; wherein the plurality of wavelength conversion subunits are composed of different wavelength conversion materials; The method further comprises using a fixing unit to fixedly connect the bearing unit to the driving unit, so that the driving unit can output the rotational driving force and the movement driving force to the bearing unit through the fixing unit; The bearing unit is a cylindrical device, and the outer surface of the cylindrical device is a light receiving contact surface; The plurality of wavelength conversion sub-units are distributed on the light receiving contact surface in the form of stripes, and the arrangement direction of the stripes is the same as the direction of the rotation axis.

8. The method according to claim 7, further comprising providing power using a power supply device; When the excitation light irradiates the wavelength conversion subunit, the wavelength of the stimulated light generated is different from the wavelength of the excitation light.

9. The method according to any one of claims 7-8, wherein the areas of the plurality of wavelength conversion subunits are different, and the wavelength conversion material of each of the plurality of wavelength conversion subunits is determined based on the color gamut parameter, the color parameter and the brightness parameter; Any wavelength conversion subunit among the plurality of wavelength conversion subunits includes a plurality of regions that are not connected to each other.

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