Image generation module, projection system and white balance calibration system

Abstract

The utility model relates to the field of projection technology discloses an image generation module, projection system and white balance calibration system, image generation module includes: casing, has first installation groove, be used for sending RGB three color light's light source, sensor board sets up in casing, the light -receiving amount adjustable sensor chip sets up in sensor board, the sensor chip is used for receiving the luminance light source of sensing RGB three color light, the image generation module provided by the utility model can reach the optimum value range of automatic white balance calibration 100%, avoids image generation module to sacrifice luminous flux to complete automatic white balance calibration to avoid the luminance loss.

Description

Technical Field

[0001] This utility model relates to the field of projection technology, and in particular to an image generation module, a projection system and a white balance calibration system. Background Technology

[0002] The Picture Generation Unit (PGU) used in automotive Head-Up Displays (HUDs) based on Digital Light Processing (DLP) solutions requires automatic white balance (AWB) calibration to address image distortion and color cast issues. This is because the luminous flux output of the light source varies with operating temperature in real-world applications, and the HUD's output brightness must also change with ambient light variations. The PGU maintains a 5000:1 dimming ratio within its operating temperature range of -40°C to 85°C, unaffected by variations in light source brightness, natural light source brightness decay, operating temperature changes, and changes in ambient light. This ensures that the system's output brightness changes linearly with the input brightness, allowing for smooth dimming. Simultaneously, it ensures that the projected image color matches the actual color point under real-world conditions.

[0003] The reference design for the DLP PGU uses an LED driver control loop with optical feedback. The sensor chip is a crucial component of this control loop, and its placement and the electrical response of the photodiode will produce the widest dynamic dimming range. Therefore, the sensor's placement is critical for white balance calibration. However, due to the different brightness and color temperature levels of the light source itself, coupled with individual PGU variations, the optical feedback parameters obtained from a fixed sensor position vary greatly, making it impossible to achieve 100% of the optimal range for automatic white balance calibration. Automatic white balance calibration of the PGU sacrifices luminous flux, resulting in up to 40% brightness loss compared to manual white balance calibration.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an image generation module and projection system to solve the problem of brightness loss caused by sacrificing luminous flux when performing automatic white balance calibration in existing image generation units.

[0006] The technical solution of this utility model is as follows:

[0007] In a first aspect, this utility model provides an image generation module, which includes:

[0008] The housing has a first mounting groove;

[0009] A light source used to emit RGB three-color light;

[0010] The sensor board is mounted on the housing;

[0011] An adjustable light-intake sensor chip is mounted on the sensor board. The sensor chip is used to receive and sense the brightness of RGB three-color light.

[0012] In a further embodiment of this invention, the image generation module also includes a light diffusion plate, which is disposed in the first mounting groove of the housing and located in front of the light-incoming side of the sensing chip. The light diffusion plate is used to perform light diffusion and uniform light processing on the RGB three-color light emitted from the light source to the sensing chip.

[0013] A further feature of this invention is that the sensor plate is provided with a second mounting groove; the housing is provided with a first fastener, which passes through the second mounting groove.

[0014] As the sensor plate moves along the surface of the housing through the second mounting groove, the amount of light entering the sensor chip changes with the movement of the sensor plate.

[0015] In a further embodiment of this invention, the housing is provided with opposing elastic buckles, and the sensor plate is provided with a U-shaped groove at one end near the elastic buckle, and the sensor plate is engaged and fixed with the elastic buckle through the U-shaped groove.

[0016] In a further embodiment of this invention, the elastic buckle includes a first engaging portion and a second engaging portion;

[0017] The first snap-fit ​​portion is connected to the surface of the housing, one end of the second snap-fit ​​portion is connected to the first snap-fit ​​portion, and the other end of the second snap-fit ​​portion is suspended.

[0018] A slot is formed between the first latching part and the second latching part; the surface of the second latching part is an inclined surface.

[0019] In a further embodiment of this invention, the housing is provided with a mounting portion; the image generation module also includes a light-blocking plate, which is rotatably connected to the mounting portion and located between the sensing chip and the light diffusion plate.

[0020] In a further embodiment of this invention, the light-blocking sheet includes a light-blocking part, an adjusting part, and a fixing part; the mounting part is provided with mounting holes.

[0021] The adjusting part is rotatably connected to the mounting part;

[0022] The light-blocking part is connected to the adjustment part;

[0023] The adjustment part extends out of the sensor plate, and the end face of the adjustment part is provided with an adjustment groove;

[0024] The fixing part is located at the bottom of the adjusting part and is interference-fitted with the mounting hole.

[0025] In a further embodiment of this invention, the sensor board also includes wiring terminals for connecting to a white balance calibration fixture module.

[0026] Secondly, this utility model also provides a projection system, which includes the image generation module as described above.

[0027] Thirdly, this utility model also provides a white balance calibration system, including a white balance calibration fixture module and an image generation module as described above, wherein the white balance calibration fixture module is connected to the light source.

[0028] In a further embodiment of this invention, the white balance calibration fixture module includes a DLP controller, a light source driving module, and an RGB current real-time detection module.

[0029] The DLP controller is connected to the light source driving module, and the DLP controller drives the spatial light modulator in the image generation module to guide the light emitted from the light source to the sensing chip.

[0030] The light source driving module is connected to the RGB current real-time detection module, and the light source driving module is used to drive the light source in the image generation module to emit light;

[0031] The RGB current real-time detection module is connected to the light source, and is used to detect the current RGB current in real time and display the RGB current.

[0032] This invention provides an image generation module, a projection system, and a white balance calibration system. The image generation module includes: a housing with a first mounting slot; a light source for emitting RGB three-color light; a sensor board disposed on the housing; and a sensor chip with adjustable light intake disposed on the sensor board, the sensor chip being used to receive and sense the brightness of the RGB three-color light. This invention compensates for brightness differences between different light sources by adjusting the light intake of the sensor chip, enabling the image generation module to achieve 100% of the optimal value range for automatic white balance calibration. This avoids the image generation module sacrificing luminous flux to complete automatic white balance calibration, thereby preventing brightness loss. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the existing white balance calibration and adjustment scheme.

[0035] Figure 2 This is a schematic diagram of the structure of an image generation module in one embodiment of the present invention.

[0036] Figure 3 This is an assembly diagram of the image generation module in one embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of the elastic buckle in one embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the structure of the image generation module in another embodiment of the present invention. Figure 1 .

[0039] Figure 6 This is a schematic diagram of the structure of the image generation module in another embodiment of this utility model. Figure 2 .

[0040] Figure 7 This is a schematic diagram of the installation of the light diffusion plate in another embodiment of this utility model.

[0041] Figure 8 This is a schematic diagram of the structure of the light-blocking sheet, the mounting part, and the sensor plate in another embodiment of this utility model. Figure 1 .

[0042] Figure 9 This is a schematic diagram of the structure of the light-blocking sheet, the mounting part, and the sensor plate in another embodiment of this utility model. Figure 2 .

[0043] Figure 10 This is a schematic diagram of a white balance calibration system in one embodiment of this utility model.

[0044] The markings in the attached diagram are as follows: 1. Housing; 11. First mounting slot; 2. Light source; 3. Sensor board; 31. Sensor chip; 32. Second mounting slot; 33. U-shaped groove; 4. Light diffusion plate; 5. First fastener; 6. Elastic buckle; 61. First snap-fit ​​part; 62. Second snap-fit ​​part; 621. Inclined surface; 63. Slot; 7. Wiring terminal; 10. Mounting part; 101. Mounting hole; 20. Light blocking plate; 201. Light blocking part; 202. Adjustment part; 203. Fixing part; 204. Adjustment groove; 30. Second fastener; 40. White balance calibration fixture module; 401. DLP controller; 402. Light source drive module; 403. RGB current real-time detection module. Detailed Implementation

[0045] This utility model provides an image generation module, a projection system, and a white balance calibration system. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0046] In the implementation methods and claims, unless otherwise specified in the text, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of this utility model involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0047] It should be further understood that the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when an element is referred to as "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements present. Furthermore, "connected" or "coupled" as used herein can include wireless connections or wireless coupling. The term "and / or" as used herein includes all or any of the units and all combinations thereof of one or more associatedly listed items.

[0048] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0049] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0050] The inventors discovered that currently available PGUs based on DLP solutions have white balance calibration designs such as... Figure 1 As shown, finding a suitable fixed location to place the sensor within the PGU module requires comprehensively meeting various conditions required by the scheme: preventing dark field light from entering the sensor; ensuring the illuminance at the sensor location is within the chip specification range (not critical) to maintain system linearity and color point accuracy; ensuring similar luminous flux ratios of the RGB three colors received on the sensor; and ensuring the RGB current saturation level under sensor feedback control is within the specified range.

[0051] Only when the above conditions are met can automatic white balance operation be performed using a white balance calibration fixture module. However, for PGUs based on light sources, due to the different brightness and color temperature levels of the light sources themselves, coupled with the differences between individual PGUs, the light feedback parameters obtained from a fixed sensor position vary greatly. This makes it impossible for all PGUs to reach the optimal value range for automatic white balance calibration 100%, resulting in low yield. Some PGUs may sacrifice luminous flux to complete the automatic white balance calibration, resulting in a brightness loss of up to 40% compared to manual white balance calibration.

[0052] To address the aforementioned technical problems, this invention provides an image generation module, a projection system, and a white balance calibration system. By placing a light diffusion plate in front of the light-incoming sensor chip to perform light diffusion and homogenization processing on the incoming RGB three-color light, it can compensate for the differences in the light output angles of the RGB three-color light between different image generation modules. This ensures that the luminous flux ratio of the RGB three-color light received on the sensor chip is similar, thus compensating for the brightness differences between different light sources. This allows the image generation module to reach the optimal value range for automatic white balance calibration 100%, improving the yield rate and preventing the image generation module from sacrificing luminous flux to complete automatic white balance calibration, thereby avoiding brightness loss.

[0053] Please also refer to Figures 2 to 8 This utility model provides a preferred embodiment of an image generation module.

[0054] In some embodiments, the present invention provides an image generation module, such as... Figure 2 and Figure 3 As shown, it includes: a housing 1, a light source 2, a sensor board 3, and a sensor chip 31 with adjustable light intake. The housing 1 has a first mounting groove 11; the light source 2 is used to emit RGB three-color light; the sensor board 3 is disposed on the housing 1; the sensor chip 31 is disposed on the sensor board 3, and the sensor chip 31 is used to receive and sense the brightness of the RGB three-color light.

[0055] In this embodiment, the light source 2 is controlled by the white balance calibration fixture module 40. When the light source 2 is powered on and driven, it can generate RGB three-color light. The sensor chip 31 can receive and sense the brightness of the RGB three-color light. By adjusting the installation position of the sensor chip 31 or the dimming component in front of the sensor chip 31, the amount of light entering the sensor chip 31 can be adjusted. This can compensate for the brightness differences between different light sources 2, ensuring that the RGB three-color light current saturation under the feedback control of the sensor board 3 is within the specified range. In the above technical solution, by adjusting the amount of light entering the sensor chip 31, the brightness differences between different light sources 2 can be compensated, thereby reducing the impact of differences in the incident angle, brightness, and ratio of RGB three-color light between different PGU modules. Furthermore, the light feedback parameters obtained by the sensor of each PGU module can be adjusted, thus overcoming various parameter differences to the maximum extent. This allows the image generation module to reach the optimal value range for automatic white balance calibration 100%, avoiding the image generation module sacrificing luminous flux to complete automatic white balance calibration, thereby avoiding brightness loss and improving production yield.

[0056] In some embodiments, the dimming component of the image generation module includes a light diffusion plate 4, which is disposed in the first mounting groove 11 of the housing 1 and located in front of the light-incoming side of the sensing chip 31. The light diffusion plate 4 is used to perform light diffusion and uniform light processing on the RGB three-color light emitted from the light source 2 to the sensing chip 31.

[0057] In this embodiment, the light diffusion plate 4 is disposed within the first mounting groove 11 of the housing 1 and located in front of the light-incoming side of the sensor chip 31. It can diffuse and homogenize the incoming RGB light to compensate for the differences in the emission angles of the RGB light between different PGU modules, ensuring that the RGB light flux received by the sensor chip 31 has a similar ratio. In some embodiments, to ensure the installation stability of the light diffusion plate 4, after it is installed in the first mounting groove 11, it can be further fixed by applying adhesive.

[0058] In some embodiments, such as Figure 2 and Figure 3 As shown, the sensor plate 3 is provided with a second mounting groove 32; the housing 1 is provided with a first fastener 5, which passes through the second mounting groove 32; when the sensor plate 3 moves along the surface of the housing 1 through the second mounting groove 32, the amount of light entering the sensor chip 31 changes with the movement of the sensor plate 3.

[0059] In this embodiment, the second mounting slot 32 is an adjustable mounting slot, which can be adjusted in a set direction and range. That is, the first fastener 5 can slide within the second mounting slot 32, thereby adjusting the position of the sensor plate 3 in the lateral direction of the housing 1, and thus adjusting the position of the sensor chip 31, thereby adjusting the amount of light entering the sensor chip 31, and ultimately compensating for the brightness differences between different light sources by adjusting the amount of light entering the sensor chip 31. After the position of the sensor plate 3 is adjusted to a suitable position, it is fixed by the first fastener 5.

[0060] In some embodiments, such as Figure 2 and Figure 4 As shown, the housing 1 is provided with elastic buckles 6 arranged opposite to each other, and the sensor plate 3 is provided with a U-shaped groove 33 at one end near the elastic buckle 6. The sensor plate 3 is fixed to the elastic buckle 6 by the U-shaped groove 33.

[0061] In this embodiment, the other end of the sensor plate 3 is elastically fixed by two oppositely arranged elastic buckles 6. Before the first fastener 5 is locked, an elastic clamping force can be applied to the sensor plate 3 to facilitate position adjustment and temporary fixation, while preventing the position of the sensor plate 3 from shifting after fixation.

[0062] In some embodiments, such as Figure 2 and Figure 4As shown, the elastic buckle 6 includes a first snap-fit ​​portion 61 and a second snap-fit ​​portion 62; the first snap-fit ​​portion 61 is connected to the surface of the housing 1, one end of the second snap-fit ​​portion 62 is connected to the first snap-fit ​​portion 61, and the other end of the second snap-fit ​​portion 62 is suspended; a slot 63 is formed between the first snap-fit ​​portion 61 and the second snap-fit ​​portion 62.

[0063] In this embodiment, the elastic buckle 6 is composed of a first latching part 61 and a second latching part 62. The sensor plate 3 slides into the slot 63 formed by the first latching part 61 and the second latching part 62 along the second latching part 62, thereby fixing the sensor plate 3. After the sensor plate 3 is adjusted to a suitable position, adhesive can be applied around the first fastener 5 and around the elastic buckle 6 to prevent the sensor plate 3 from loosening.

[0064] In some embodiments, such as Figure 4 As shown, the surface of the second latching part 62 is an inclined surface 621, so that the sensor plate 3 can slide into the slot 63.

[0065] In another embodiment, such as Figure 5 and Figure 6 As shown, the housing 1 is provided with a mounting part 10; the dimming component of the image generation module also includes a light blocking plate 20, which is rotatably connected to the mounting part 10 and located between the sensing chip 31 and the light diffusion plate 4.

[0066] In this embodiment, the sensor plate 3 is fixed to the housing 1 by a second fastener 30. The light-blocking plate 20 is located between the sensor chip 31 and the light diffuser, and the light-blocking plate 20 can rotate along the mounting portion 10. Thus, by adjusting the mounting angle of the light-blocking plate 20, the amount of light received by the sensor chip 31 can be adjusted.

[0067] In some embodiments, such as Figure 7 , Figure 8 and Figure 9 As shown, the light-blocking plate 20 includes a light-blocking part 201, an adjusting part 202, and a fixing part 203; the mounting part 10 is provided with a mounting hole 101; the adjusting part 202 is rotatably connected to the mounting part 10; the light-blocking part 201 is connected to the adjusting part 202 and is located between the sensor chip 31 and the light diffusion plate 4; wherein, the adjusting part 202 partially extends out of the sensor plate 3, and the end face of the adjusting part 202 is provided with an adjusting groove 204; the fixing part 203 is located at the bottom of the adjusting part 202 and is interference-fitted with the mounting hole 101.

[0068] In this embodiment, the fixing part 203 is cylindrical, and the light-blocking plate 20 is interference-fitted to the mounting hole 101 on the mounting part 10 through the fixing part 203. The adjusting part 202 extends above the sensor plate 3, and the adjusting groove 204 on the adjusting part 202 allows the light-blocking plate 20 to rotate (clockwise or counterclockwise) around the axis of the mounting hole 101, thereby adjusting the mounting angle of the light-blocking plate 20. After the position of the light-blocking plate 20 is adjusted to a suitable angle, adhesive can be applied around the adjusting groove 204 to fix it to the sensor plate and prevent it from loosening, thus preventing the position of the light-blocking plate 20 from changing.

[0069] In some embodiments, such as Figure 1 and Figure 5 As shown, the sensor board 3 also includes a terminal block 7 for connecting to the white balance calibration fixture module 40.

[0070] In this embodiment, a terminal block 7 is soldered onto the sensor board, and the sensor board 3 is connected to the white balance calibration system through the terminal block 7.

[0071] In some embodiments, the present invention further includes a projection system comprising the image generation module as described above. Specific details of the image generation module are as follows, and will not be repeated here.

[0072] In some embodiments, such as Figure 10 As shown, this utility model also provides a white balance calibration system, including a white balance calibration fixture module 40 and an image generation module as described above. The white balance calibration fixture module 40 is connected to the light source 2. The white balance calibration fixture module 40 includes a DLP controller 401, a light source driving module 402, and an RGB current real-time detection module 403. The DLP controller 401 is connected to the light source driving module 402 and is used to control the operation of the light source driving module 402 according to the target photocurrent. The light source driving module 402 is connected to the RGB current real-time detection module 403 and is used to drive the light source 2. The RGB current real-time detection module 403 is connected to the light source 2 and is used to detect the current RGB current in real time and display the RGB current.

[0073] In this embodiment, the white balance calibration fixture module 40 can perform white balance calibration on the image generation module. Specifically, the light source driving module 402 drives the light source 2 in the image generation unit to emit light, and the DLP controller 401 drives the spatial light modulator in the image generation unit to guide the light emitted from the light source 2 to the sensor chip 3. During this period, when the position change of the sensor chip 31 in the image generation unit causes a change in the brightness of the light inlet, it will be fed back to the white balance calibration fixture module 40. Under the control of the white balance control system, the current of the light source 2 in the image generation unit can be automatically changed. The RGB current real-time detection module 403 displays the current RGB current in real time and determines whether the position of the sensor chip 31 is appropriate by reading the parameters. In one implementation, when the DAClevels / Limits RGB values ​​of the DLP controller 401 are both 3800, the current is 3.3A≤R≤6A, 5A≤G≤6A, 4.5A≤B≤6A, and the current ratio of the white field to the dark field is less than 6%. In one implementation, the light source 2 can be an LED light source, and the light source driving module 402 can be an LED light source driving module.

[0074] In summary, the image generation module, projection system, and white balance calibration system provided by this utility model have the following beneficial effects:

[0075] By placing a light diffusion plate in front of the light-incoming direction of the sensor chip to perform light diffusion and homogenization processing on the incoming RGB three-color light, the difference in the exit angle of the RGB three-color light between different image generation modules can be compensated, so that the luminous flux ratio of the RGB three-color light received on the sensor chip is similar. By adjusting the light intake of the sensor chip, the brightness difference between different light sources can be compensated, thereby reducing the impact of the difference in the incident angle, brightness and ratio of the RGB three-color light between different PGU modules. Furthermore, the light feedback parameters obtained by the sensor board of each PGU module can be adjusted, thus overcoming various parameter differences to the maximum extent. This allows the image generation module to reach 100% of the optimal value range for automatic white balance calibration, that is, the image generation module can meet the various parameter conditions required for white balance and reach near the optimal value. This avoids the image generation module sacrificing luminous flux to complete automatic white balance calibration, thereby avoiding brightness loss and improving production yield.

[0076] An RGB current real-time detection module was added to the white balance calibration fixture module to realize real-time adjustment of the position of the monitoring sensor chip, so that the position of the sensor chip is optimal, thereby improving the overall brightness performance index and production yield of PGU.

[0077] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An image generation module, characterized in that, include: The housing has a first mounting groove; A light source used to emit RGB three-color light; The sensor board is mounted on the housing; An adjustable light-intake sensor chip is mounted on the sensor board. The sensor chip is used to receive and sense the brightness of RGB three-color light.

2. The image generation module according to claim 1, characterized in that, Also includes: A light diffusion plate is disposed in the first mounting groove of the housing and located in front of the light-incoming side of the sensing chip. The light diffusion plate is used to perform light diffusion and uniform light processing on the RGB three-color light emitted from the light source to the sensing chip.

3. The image generation module according to claim 1, characterized in that, The sensor plate is provided with a second mounting groove; the housing is provided with a first fastener, which passes through the second mounting groove. As the sensor plate moves along the surface of the housing through the second mounting groove, the amount of light entering the sensor chip changes with the movement of the sensor plate.

4. The image generation module according to claim 3, characterized in that, The housing is provided with oppositely arranged elastic buckles, and the sensor plate is provided with a U-shaped groove at one end near the elastic buckle. The sensor plate is fixed to the elastic buckle by the U-shaped groove.

5. The image generation module according to claim 4, characterized in that, The elastic buckle includes a first locking part and a second locking part; The first snap-fit ​​portion is connected to the surface of the housing, one end of the second snap-fit ​​portion is connected to the first snap-fit ​​portion, and the other end of the second snap-fit ​​portion is suspended. A slot is formed between the first latching part and the second latching part; The surface of the second snap-fit ​​part is an inclined surface.

6. The image generation module according to claim 2, characterized in that, The housing is provided with a mounting part; the image generation module also includes a light-blocking plate, which is rotatably connected to the mounting part and located between the sensing chip and the light diffusion plate.

7. The image generation module according to claim 6, characterized in that, The light-blocking plate includes a light-blocking part, an adjusting part, and a fixing part; the mounting part is provided with mounting holes. The adjusting part is rotatably connected to the mounting part; The light-blocking part is connected to the adjustment part; The adjustment part extends out of the sensor plate, and the end face of the adjustment part is provided with an adjustment groove; The fixing part is located at the bottom of the adjusting part and is interference-fitted with the mounting hole.

8. The image generation module according to claim 1, characterized in that, The sensor board also includes wiring terminals for connecting to the white balance calibration fixture module.

9. A projection system, characterized in that, Includes the image generation module as described in any one of claims 1-8.

10. A white balance calibration system, characterized in that, The system includes a white balance calibration fixture module and an image generation module as described in any one of claims 1-8, wherein the white balance calibration fixture module is connected to the light source; wherein the white balance calibration fixture module includes: a DLP controller, a light source driving module, and an RGB current real-time detection module; The DLP controller is connected to the light source driving module, and the DLP controller drives the spatial light modulator in the image generation module to guide the light emitted from the light source to the sensing chip. The light source driving module is connected to the RGB current real-time detection module, and the light source driving module is used to drive the light source in the image generation module to emit light; The RGB current real-time detection module is connected to the light source, and is used to detect the current RGB current in real time and display the RGB current.

Images