WO2021169594A1

WO2021169594A1 - Projection display control method, adjustment apparatus and projection apparatus

Info

Publication number: WO2021169594A1
Application number: PCT/CN2020/142120
Authority: WO
Inventors: 黄国生; 吴超
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2020-02-27
Filing date: 2020-12-31
Publication date: 2021-09-02
Also published as: CN113314059A

Abstract

A projection display control method, an adjustment apparatus (30, 41) and a projection apparatus (40). Said method comprises: receiving continuous multi-frame image information, and acquiring, according to the continuous multi-frame image information, a dynamic color mode corresponding to the continuous multi-frame image information; acquiring, according to the dynamic color mode, a driving current adjustment proportion and a brightness compensation proportion which match the dynamic color mode; according to the driving current adjustment proportion, increasing a driving current corresponding to a first color in the information to a first current range, and decreasing a driving current corresponding to a second color to a second current range; and adjusting, according to the brightness compensation proportion, gray scale information corresponding to the first color and the second color in the continuous multi-frame image information. By means of said method, the display brightness of the first color can be improved, and the display effect of the projection apparatus (40) can be improved.

Description

Control method, adjustment device and projection device for projection display

Technical field

This application relates to the field of projection technology, in particular to a control method, adjustment device and projection device for projection display.

Background technique

In the existing projection technology, in order to bring a better visual effect to the user, the display is usually enhanced by increasing the color brightness; the color brightness is adjusted by the light valve, and the brightness is usually increased by increasing the total light power irradiated on the light valve. However, the higher the total light power irradiated on the light valve, the higher the temperature rise of the light valve, and high temperature will affect the performance of the light valve.

Summary of the invention

The main problem to be solved by this application is to provide a projection display control method, adjustment device and projection device, which can improve the display brightness of the first color and improve the display effect of the projection device.

On the one hand, the present application provides a method for controlling projection display. The method includes: receiving continuous multi-frame image information, obtaining a dynamic color mode corresponding to the continuous multi-frame image information according to the continuous multi-frame image information; Color mode matching driving current adjustment ratio and brightness compensation ratio; according to the driving current adjustment ratio, the driving current corresponding to the first color is increased to the first current range, and the driving current corresponding to the second color is reduced to the second current range ; Adjust the grayscale information corresponding to the first color and the second color in the continuous frames of image information according to the brightness compensation ratio.

In an implementation manner, the multi-frame image information includes brightness data and color brightness control information, and the method further includes: analyzing the continuous multi-frame brightness data to obtain the proportion of the third color in the multi-frame brightness data; The proportion of the three colors is used to obtain the dynamic color mode corresponding to the multi-frame brightness data.

In another implementation, the third color includes red, green, blue, or black, the first color is one or two of red, green, or blue, and the second color is red, green, blue, or At least one of black, when the proportion of the first color is greater than the proportion of the second color, the dynamic color mode includes red mode, green mode, blue mode, red-green mode, red-blue mode, or blue-green mode ; When the proportion of black is greater than the proportion of the second color, the dynamic color mode includes black-red mode, black-green mode, or black-blue mode.

In another implementation manner, the method further includes: adjusting the color brightness control information according to the brightness compensation ratio to obtain the adjusted color brightness control information; and sending the adjusted color brightness control information to the light valve driving processor; Among them, the color brightness control information is used to control the brightness of the light beam output by the light valve driving processor.

In another implementation manner, the method further includes: searching in a pre-stored mapping table according to the dynamic color mode to obtain a driving current adjustment ratio and a brightness compensation ratio that match the dynamic color mode, wherein the pre-stored mapping table It includes at least one dynamic color mode and its corresponding driving current adjustment ratio and brightness compensation ratio.

Another aspect of the present application provides an adjustment device that includes a memory and a processor connected to each other, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, it is used to implement the above-mentioned projection display control method.

Another aspect of the present application provides a projection device. The projection device includes a light valve drive processor and an adjustment device. The adjustment device is used to adjust the received image information and input the adjusted image information to the light valve drive processor. , Wherein the adjusting device is the above-mentioned adjusting device.

In one implementation, the projection device further includes a power driver and a light source array. The power driver is used to receive the driving current adjustment ratio output by the adjusting device, and output power information to the light source array, wherein the power information is used to drive the light source array to generate a light beam , The driving mode of the power driver includes amplitude modulation mode or frequency modulation mode.

In another implementation, when the driving mode is the amplitude modulation mode, the amplitude of the driving current corresponding to the first color is increased to the first current range, and the amplitude of the driving current corresponding to the second color is reduced to the second current range; When the mode is the frequency modulation mode, the duty cycle of the pulse width modulation information corresponding to the first color is increased to the first duty cycle range, and the duty cycle of the pulse width modulation information corresponding to the second color is decreased to the second duty cycle range.

In another implementation manner, the projection device further includes a light source driver, which is connected to the power source driver and the light source array, respectively, for receiving power information and outputting information to drive the light source array to generate light beams.

In another implementation manner, the projection device further includes a light valve drive processor, which is respectively connected to the adjustment device and the light source driver, and is used to receive multi-frame image information output by the adjustment device and output synchronization control information to The light source driver, so that the light source driver drives the light source array to generate light beams of corresponding colors according to the power information and the synchronization control information.

In another implementation manner, the projection device further includes a light valve, which is used to receive the light beam output by the light source array and the information output by the light valve driving processor, and emit the projection light beam.

In another implementation manner, the power of each color of light in the light beam output by the light valve is the product of the driving current, the color wheel efficiency, the channel efficiency, and the light output rate of the lens.

The solution of the present application analyzes and predicts the image information of consecutive multiple frames before transmitting the image information to the light valve drive processor, and selects the dynamic color mode suitable for the next stage of display. According to the dynamic color mode, it can be obtained Match the driving current adjustment ratio and the brightness compensation ratio, and then increase the current of the first color according to the driving current adjustment ratio, while reducing the current of the second color, and then adjust the brightness value of the color according to the brightness compensation ratio. The compensated image information is The synchronized light can be matched to increase the peak brightness of the first color. As the display brightness of the second color is reduced, the contrast of the picture to be displayed can be enhanced, and the average light power projected to the light valve can be reduced.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. in:

FIG. 1 is a schematic flowchart of an embodiment of a projection display control method provided by the present application;

2 is a schematic flowchart of another embodiment of the projection display control method provided by the present application;

FIG. 3 is a schematic structural diagram of an embodiment of the adjustment device provided by the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a projection device provided by the present application;

FIG. 5 is a schematic diagram of the driving current in the embodiment shown in FIG. 4;

FIG. 6 is a schematic diagram of PWM information in the embodiment shown in FIG. 4;

FIG. 7 is a schematic diagram of the driving current and the proportion of gray scale in the embodiment shown in FIG. 4.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of an embodiment of a projection display control method provided by the present application. The method includes:

Step 11: Receive continuous multi-frame image information, and obtain a dynamic color mode corresponding to the continuous multi-frame image information according to the continuous multi-frame image information.

In most application scenarios, the picture displayed by the projector is preset, that is, the projector obtains the projection picture in advance, and then performs projection, so the received continuous multi-frame image information can be analyzed to determine the match with the multi-frame image The dynamic color mode can increase the brightness of at least one color in the current image while reducing the brightness of other colors. The dynamic color mode can be a preset mode or a mode obtained by other means, such as The pattern obtained by the machine through deep learning.

Step 12: Obtain the driving current adjustment ratio and the brightness compensation ratio that match the dynamic color mode according to the dynamic color mode.

Since the three primary colors can be composed of various colors, the drive current adjustment ratio can be the adjustment ratio of the drive current corresponding to each of the three primary colors, that is, the drive current adjustment ratio includes the drive current adjustment ratio K _R corresponding to red (R), green ( G) The corresponding driving current adjustment ratio K _G and the blue (B) corresponding driving current adjustment ratio K _B , for example, K _R , K _G, and K _B are -30%, -25%, and 32%, respectively, indicating The driving current corresponding to red is reduced by 30%, the driving current corresponding to green is reduced by 25%, and the driving current corresponding to blue is increased by 32%.

Compensation luminance ratio may be the ratio of the three primary colors of light of each color in the light-receiving rate, i.e. the ratio of the brightness compensating comprises compensating a luminance ratio of the red luminance compensation ratio corresponding L _R, the green luminance compensation ratio corresponding to L _G corresponding to the blue and L _B , for example, L _R , L _G and L _B are respectively 30%, 25% and -32%, which means that the proportion of red light will be increased by 30%, the proportion of green will be increased by 25%, and the proportion of blue will be increased. The color ratio is reduced by -32%.

There is a mapping relationship between the dynamic color mode, the driving current adjustment ratio and the brightness compensation ratio, and the driving current adjustment ratio and the brightness compensation ratio that match the current dynamic color mode can be quickly obtained through the mapping relationship.

For example, the mapping relationship between the dynamic color mode and the driving current adjustment ratio and the brightness compensation ratio can be as shown in the following table:

Step 13: According to the driving current adjustment ratio, the driving current corresponding to the first color of the information is increased to the first current range, and the driving current corresponding to the second color is decreased to the second current range.

The second color can be a single color different from the first color, or multiple other colors different from the first color; the drive current can be adjusted proportionally to the power driver, and the power driver can adjust the output after receiving the drive current to adjust the ratio. The current increases the driving current corresponding to the first color in the output power information, and the driving current corresponding to the second color decreases.

The first color corresponds to the dynamic color mode, that is, the prominent color in the dynamic color mode is the first color; for example, if the main content of the image A1 is red flowers, the first color is red during the period when the image A1 is displayed. Converting the dynamic color mode to the red mode can reduce the current corresponding to green and blue light by 30%, and increase the current corresponding to red light by 30%, so that the red flowers are more beautiful and the peak brightness of red light is higher; image A2 The main content of is green trees and blue lake water. During the period of displaying image A2, the first color is green and blue. The dynamic color mode is converted to blue-green mode, and the current corresponding to red light is reduced by 30%. Increase the current corresponding to green light and blue light by 20% to make green water and green mountains more obvious, and the peak brightness of green light and blue light is higher; when the blue sea and blue sky are displayed, the current ratio of blue light can be increased.

Step 14: Adjust the grayscale information corresponding to the first color and the second color in the continuous frames of image information according to the brightness compensation ratio.

The brightness compensation ratio can adjust the image information, increase the grayscale value of the color whose current is reduced, and reduce the grayscale value of the color whose current is increased; for example, the power driver increases the current of red light by 30%, and green light The current of blue light and blue light is reduced by 20%, corresponding to the adjustment ratio of drive current, the gray scale value is adjusted. For example, in the light output rate of the light valve, the proportion of red light is reduced by 30%, and the proportion of green light and blue light is increased by 20 %.

In the engineering machine solution, the screen scene is usually preset, and the screen is predictable, such as artificial animation, logo (LOGO) or poster; when displaying a screen dominated by a certain color, The light-emitting ratio of the light source of the color is reduced, and the light-emitting ratio of the second color is reduced at the same time, so that the peak brightness of this color is higher and more colorful. At the same time, the overall average power of the light valve is reduced, which can reduce the heat dissipation cost of the light valve device. The device can achieve higher monochrome peak brightness; when playing video, it can present dynamic color peak brightness with automatic switching of various colors in turn, making the display experience better.

This embodiment provides a drive control method for improving the dynamic color brightness of the projector, which is suitable for an engineering machine solution for field applications. Before the image information is transmitted to the light valve drive processor, the Perform analysis and select a certain dynamic color mode suitable for the next stage of display to increase the peak current of the first color, reduce the current of the second color, and adjust the brightness value of the color. The compensated image information is synchronized with With the cooperation of the incoming light, the peak brightness of the first color can be increased, and the average light power projected to the light valve can be greatly reduced.

Please refer to FIG. 2. FIG. 2 is a schematic flowchart of another embodiment of a projection display control method provided by the present application. The method includes:

Step 21: Receive continuous multiple frames of image information.

The multi-frame image information includes brightness data and color brightness control information. The color brightness control information can be used to control the brightness of the light beam output by the light valve driving processor; specifically, the inversion ratio of the light valve driving processor can be controlled to To achieve the purpose of controlling the brightness of the light beam output by the light valve, the color brightness control information can be RGB parallel information. The RGB parallel information can control the turnover ratio of the light valve, that is, the grayscale value corresponding to RGB, which can extract the maximum value from the brightness data. Brightness value.

Step 22: Analyze the continuous multiple frames of brightness data to obtain the proportion of the third color in the multiple frames of brightness data.

By analyzing and predicting the RGB brightness data of multiple consecutive frames, the proportion of the third color in the multiple frames of brightness data can be obtained. The third color includes red, green, blue or black, and the colors included in the third color More than the colors included in the first color.

Step 23: Acquire a dynamic color mode corresponding to the multi-frame brightness data according to the proportion of the third color.

According to the proportion of the third color, one of the dynamic color modes suitable for the next stage of display can be selected. The first color is one or two of red, green or blue, and the second color is red, At least one of green, blue or black; when the proportion of the first color is greater than the proportion of the second color, the dynamic color modes include red mode, green mode, blue mode, red-green mode, red-blue Mode or blue-green mode; when the proportion of black is greater than the proportion of the second color, the dynamic color mode includes black-red mode, black-green mode, or black-blue mode.

In a specific embodiment, the proportions of various colors in consecutive multiple frames of images can be counted. If the proportion of black is much greater than the proportion of the second color, it is determined which of the second colors is in addition to black. If the proportion of red is the largest, the dynamic color mode is black-red mode; if the proportion of green is the largest, the dynamic color mode is black-green mode; if the proportion of blue is Maximum, the dynamic color mode is black and blue mode.

If the proportion of red in successive frames is much greater than the proportion of the second color, the dynamic color mode is red; if the proportion of green in successive frames is much larger than the proportion of the second color, The dynamic color mode is the green mode; if the proportion of blue in the continuous frames of images is much greater than the proportion of the second color, the dynamic color mode is the blue mode.

If the proportion of red and green in the continuous multi-frame image is much greater than the proportion of the second color, the dynamic color mode is red-green mode; if the proportion of red and blue in the continuous multi-frame image is much greater than that of the second color The dynamic color mode is the red-blue mode for the proportion of colors; if the proportion of blue and green in the continuous frames of images is much greater than the proportion of the second color, the dynamic color mode is the blue-green mode.

Step 24: Search in the pre-stored mapping table according to the dynamic color mode, and obtain the driving current adjustment ratio and the brightness compensation ratio that match the dynamic color mode.

The pre-stored mapping table includes at least one dynamic color mode and the driving current adjustment ratio and the brightness compensation ratio corresponding to the dynamic color mode, that is, the dynamic color preset mode, the driving current adjustment ratio, and the brightness compensation ratio are in one-to-one correspondence. The meter can quickly obtain the drive current adjustment ratio and the brightness compensation ratio.

Step 25: According to the driving current adjustment ratio, the driving current corresponding to the first color is increased to the first current range, and the driving current corresponding to the second color is decreased to the second current range.

The driving current adjustment ratio is sent to the power driver. The power driver can select the driving mode according to the needs of the optical device. The driving mode includes the amplitude modulation mode and the frequency modulation mode. The power driver can cooperate with the digital light processing equipment (DLP, The synchronization enable information output by the Digital Light Processing) drives the light source to output the light beam.

Step 26: Adjust the color brightness control information according to the brightness compensation ratio to obtain the adjusted color brightness control information.

Step 27: Send the adjusted color brightness control information to the light valve drive processor.

The color brightness control information after the compensation processing can be sent to the light valve drive processor after encoding, and the light valve drive processor can receive the encoded color brightness control information for light valve adjustment, and the light valve can generate corresponding Compensation, in cooperation with the synchronized light, increases the peak brightness of the first color, and at the same time reduces the average light power projected to the light valve, thereby reducing the cost of heat dissipation; in other embodiments, the adjusted color brightness control information is also acceptable It is encoded after being sent to the light valve drive processor.

In other embodiments, the total light power input to the light valve can be kept unchanged according to the needs of the actual picture, but the light power of the first color that needs to be highlighted in the picture is increased, and the light power of the second color is reduced. The peak brightness of the first color in the picture will increase, thereby increasing the contrast of the picture.

Please refer to FIG. 3, which is a schematic structural diagram of an embodiment of the adjustment device provided by the present application. The adjustment device 30 includes a memory 31 and a processor 32 that are connected to each other. The memory 31 is used to store a computer program, and the computer program is being processed. When executed, the device 32 is used to implement the projection display control method in the foregoing embodiment.

Please refer to FIG. 4, which is a schematic structural diagram of an embodiment of a projection device provided by the present application. The projection device 40 includes an adjustment device 41 and a light valve driving processor 42. The adjustment device 41 is used to adjust the received image information. The adjusted image information is input to the light valve driving processor 42, and the adjustment device 41 is shown in the above-mentioned embodiment.

The RGB information input to the light valve driving processor 42 is first processed by the adjusting device 41 to complete the analysis and prediction of the continuous multi-frame brightness data, and according to the analysis result, one of the dynamic color modes is selected.

Continuing to refer to FIG. 4, the projection device 40 includes a power driver 43, a light source driver 44, a light source array 45 and a light valve 46.

The power driver 43 is used to receive the driving current adjustment ratio output by the adjusting device, and output power information to the light source array 45. The power information is used to drive the light source array 45 to generate a light beam; the driving mode of the power driver 43 includes an amplitude modulation mode or a frequency modulation mode, and the light source array 45 may include a light emitting diode (LED, Light Emitting Diode) or a laser diode (LD, Laser diode).

The light source driver 44 is respectively connected to the power driver 43 and the light source array 45, and is used to receive power information and output information to drive the light source array 45 to generate light beams. The driving information generated by the light source driver 44 may be pulse width modulation information (PWM, Pulse Width Modulation). )information.

When the driving mode is the amplitude modulation mode, the amplitude of the driving current corresponding to the first color increases to the first current range, and the amplitude of the driving current corresponding to the second color decreases to the second current range. For example, as shown in FIG. 5, the light source driver The frequency of the driving information generated by 44 is the same, but the voltage amplitude corresponding to each color is different; when the driving mode is the frequency modulation mode, the duty cycle of the pulse width modulation information corresponding to the first color is increased to the first duty cycle range, The duty cycle of the pulse width modulation information corresponding to the two colors is reduced to the second duty cycle range; for example, as shown in FIG. 6, the driving information generated by the light source driver 44 has the same voltage amplitude, but each color corresponds to a different frequency.

The light valve drive processor 42 is respectively connected to the adjusting device 41 and the light source driver 44, and is used to receive the multi-frame image information output by the adjusting device 41, and output synchronization control information to the light source driver 44, so that the light source driver 44 and the light source driver 44 according to the power information The synchronization control information drives the light source array 45 to generate light beams of corresponding colors; the light valve 46 is used to receive the light beam output by the light source array 45 and the information output by the light valve drive processor 42 and emit the projection light beam.

In a certain frame of image, there is a ratio between the maximum required optical power in each monochrome frame of RGB. According to the light power saved by the reduced driving current of a certain color, combined with the occupation of each color wheel (not shown in the figure) It can be converted into an increaseable light power of the first color, thereby increasing the peak brightness of the first color.

Further, the power of the light of each color in the light beam output by the light valve 46 is the product of the driving current, the color wheel efficiency, the channel efficiency, and the light output rate of the lens.

In a specific embodiment, the ratio of RGB light power in a certain frame of image is the ratio between the red light power P_R in the light emitted by the lens, the green light power P_G in the light emitted by the lens, and the blue power P_B in the light emitted by the lens. , The calculation formulas of red light power P_R, green light power P_G and blue power P_B are as follows:

P_R=I_R*C_R*L_R*OnRate_R_DMD

P_G＝I_G*C_G*L_G*OnRate_G_DMD

P_R=I_B*C_B*L_B*OnRate_B_DMD

Among them, I_R, C_R, L_R, and OnRate_R_DMD are the driving current, color wheel efficiency, path efficiency, and lens light output rate corresponding to red light; I_G, C_G, L_G, and OnRate_G_DMD are the driving current, color wheel efficiency, and path corresponding to green light, respectively Efficiency and the light output rate of the lens; I_B, C_B, L_B and OnRate_B_DMD are the driving current, color wheel efficiency, channel efficiency and lens light output rate corresponding to blue light, respectively.

In a specific embodiment, the dynamic color mode is the red mode. In the driving current adjustment ratio, the current of the red light is increased, and the current of the green light and the blue light is reduced. Specifically, the duty ratio of the PWM corresponding to the red light can be changed Increased, the duty ratio of the PWM corresponding to the green and blue light is reduced; in the corresponding compensation process, the gray level of the red light in the light output by the light valve 46 is unchanged, and the gray level ratio of the green light and blue light is increased, and the total The optical power can be increased or maintained.

In a specific embodiment, the light valve 46 may be a digital micro-mirror device (DMD, Digital Micro-mirror Device). Figures 7(a)-7(c) are drive currents, and Figures 7(d)-7(e) ) Is the proportion of gray scale corresponding to the brightest point in the DMD. Take the largest proportion of red light as an example for illustration. Figures 7(a) and 7(d) are conventional methods. The light valve 46 is used to adjust the three-color gray scale.

Assuming that the gray scale of green and blue light is relatively small at this time, DMD can increase the gray scale ratio of each pixel corresponding to green light and blue light as a whole, as shown in Figure 7(e), the corresponding green and blue light The driving current is correspondingly reduced. As shown in Figure 7(b), the total light power irradiated to the light valve 46 will be reduced. There is still room for the light valve 46 to increase the light power. At this time, the red light, green light and blue light The driving current increases synchronously according to a certain ratio, and the DMD makes corresponding compensation, as shown in Figure 7(c). At this time, the peak brightness of the red light will increase, as shown in Figure 7(f).

The operation performed by the adjustment device 41 can be embodied by the dynamic color mode. When the user needs to increase the color brightness, the increased dynamic color mode can be selected to increase the brightness of the input image. When using pure laser or RGB laser to supplement the fluorescence It can also be applied to the occasions, through amplitude modulation or frequency modulation, the brightness ratio of each pure laser can be continuously and dynamically increased and decreased, and the flip rate of the liquid crystal display (LCD, Liquid Crystal Display) can be simultaneously compensated to achieve the same dynamic color mode; For the predictive video played in a loop, the drive current can be dynamically reduced by selecting the dynamic color mode to achieve the purpose of saving electricity costs.

In the several implementation manners provided in this application, it should be understood that the disclosed method and device may be implemented in other ways. For example, the device implementation described above is only illustrative, for example, the division of modules or units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another device, or some features can be ignored or not implemented.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the objectives of the solutions of this embodiment.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

The above are only examples of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technical fields, The same reasoning is included in the scope of patent protection of this application.

Claims

A method for controlling projection display, which is characterized in that it comprises:

Receive continuous multi-frame image information, and obtain corresponding to the continuous multi-frame image information according to the continuous multi-frame image information

Dynamic color mode;

Obtaining a driving current adjustment ratio and a brightness compensation ratio that match the dynamic color mode;

Increasing the driving current corresponding to the first color to the first current range according to the driving current adjustment ratio, and reducing the driving current corresponding to the second color to the second current range;

Adjusting the gray levels corresponding to the first color and the second color in the continuous multiple frames of image information according to the brightness compensation ratio.
The projection display control method according to claim 1, wherein the multi-frame image information includes brightness data and color brightness control information, and the receiving continuous multi-frame image information is obtained according to the continuous multi-frame image information The step of the dynamic color mode corresponding to the continuous multiple frames of image information includes:

Analyzing the brightness data of the continuous multiple frames of images to obtain the proportion of the third color in the brightness data of the continuous multiple frames of images;

According to the proportion of the third color, the dynamic color mode corresponding to the brightness data of the continuous multiple frames of images is acquired.
The control method of projection display according to claim 2, characterized in that,

The third color includes red, green, blue or black, the first color is one or two of red, green or blue, and the second color is red, green, blue or black. At least one of, when the proportion of the first color is greater than the proportion of the second color, the dynamic color mode includes a red mode, a green mode, a blue mode, a red-green mode, a red-blue mode, or a blue Green mode; when the proportion of the black is greater than the proportion of the second color, the dynamic color mode includes a black-red mode, a black-green mode, or a black-blue mode.
The projection display control method according to claim 2, wherein the step of adjusting the gray scales corresponding to the first color and the second color in the continuous multiple frames of image information according to the brightness compensation ratio, include:

Adjusting the color brightness control information according to the brightness compensation ratio to obtain adjusted color brightness control information;

Sending the adjusted color brightness control information to the light valve driving processor;

Wherein, the color brightness control information is used to control the brightness of the light beam output by the light valve driving processor.
The projection display control method according to claim 1, wherein the step of obtaining a driving current adjustment ratio and a brightness compensation ratio matching the dynamic color mode according to the dynamic color mode comprises:

Search in a pre-stored mapping table according to the dynamic color mode to obtain a drive current adjustment ratio and a brightness compensation ratio that match the dynamic color mode, wherein the pre-stored mapping table includes at least one of the dynamic color modes. The color mode and the driving current adjustment ratio and brightness compensation ratio corresponding to the dynamic color mode.
An adjustment device, characterized by comprising a memory and a processor connected to each other, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, it is used to implement claims 1-5 The projection display control method described in any one of.
A projection device, characterized by comprising a light valve drive processor and an adjustment device, the adjustment device is used to adjust the received image information, and input the adjusted image information to the light valve drive processor , Wherein the adjusting device is the adjusting device according to claim 5.
The projection device according to claim 7, wherein:

The projection device further includes a power source driver and a light source array. The power source driver is used to receive the driving current adjustment ratio output by the adjusting device and output power information to the light source array, wherein the power information is used to drive the light source array. The light source array generates light beams, and the driving mode of the power driver includes an amplitude modulation mode or a frequency modulation mode.
The projection device according to claim 8, wherein:

When the driving mode is the amplitude modulation mode, the amplitude of the driving current corresponding to the first color is increased to the first current range, and the amplitude of the driving current corresponding to the second color is reduced to the second current range; in the driving mode: In the frequency modulation mode, the duty ratio of the pulse width modulation information corresponding to the first color is increased to the first duty ratio range, and the duty ratio of the pulse width modulation information corresponding to the second color is decreased to the second duty ratio Scope.
The projection device according to claim 8, wherein:

The projection device further includes a light source driver, which is respectively connected to the power source driver and the light source array, and is configured to receive the power source information and output information to drive the light source array to generate a light beam.
The projection device according to claim 10, wherein:

The projection device further includes a light valve drive processor, which is respectively connected to the adjustment device and the light source driver, and is configured to receive multi-frame image information output by the adjustment device and output synchronization control Information to the light source driver, so that the light source driver drives the light source array to generate light beams of corresponding colors according to the power source information and the synchronization control information.
The projection device according to claim 11, wherein:

The projection device further includes a light valve for receiving the light beam output by the light source array and the information output by the light valve driving processor, and emitting the projection light beam.
The projection device according to claim 12, wherein:

The power of the light of each color in the light beam output by the light valve is the product of the driving current, the efficiency of the color wheel, the efficiency of the passage, and the light output rate of the lens.