Head-up display device, design method thereof, carrier and regulation and control equipment

Abstract

The embodiment of the invention provides a head-up display device, a design method thereof, a carrier and regulation and control equipment, and relates to the technical field of head-up display. The head-up display device provided by the embodiment of the invention comprises an image source used for generating a left eye image light beam and a right eye image light beam; the lenticular grating is located on a propagation path of the left-eye image light beam and the right-eye image light beam and is used for carrying out light splitting projection on the left-eye image light beam and the right-eye image light beam; the image source comprises a plurality of pixels, the pixels are square, and each pixel comprises at least four sub-pixels with different light-emitting colors. According to the head-up display device provided by the embodiment of the invention, the crosstalk problem can be alleviated.

Description

Technical Field

[0001] The present invention relates to the field of head-up display technology, and in particular to a head-up display device and a design method, a carrier, and a control device thereof. Background Art

[0002] With the popularization of automobiles, they are becoming more and more intelligent. In order to improve driving safety and make drivers focus more on the road, more and more vehicles use head up displays (HUD) instead of instrument panels to display driving information. With the development of head up displays, there are different types of HUDs, among which AR-HUD has been widely used.

[0003] Common AR-HUD uses a special lenticular grating to achieve light splitting, so that the left and right eyes see different images, which are then merged into a 3D effect image in the user's brain. However, this lenticular grating is prone to crosstalk, causing the left and right eye images to cross. Summary of the invention

[0004] The embodiment of the present invention provides a head-up display device and a design method, a carrier, and a control device thereof to reduce the crosstalk problem.

[0005] In one aspect, an embodiment of the present invention provides a head-up display device, comprising:

[0006] An image source, the image source is used to generate a left-eye image beam and a right-eye image beam;

[0007] A cylindrical grating is located on the propagation paths of the left-eye image beam and the right-eye image beam, and is used for splitting and projecting the left-eye image beam and the right-eye image beam;

[0008] The image source includes a plurality of pixels, each pixel is square, and each pixel includes at least four sub-pixels with different luminous colors.

[0009] Optionally, the lenticular grating includes at least two lenticular partitions, each lenticular partition includes at least two lenticular lenses; the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; the sub-pixels include a first type of sub-pixels, and the first type of sub-pixels are configured to reduce the luminous brightness or turn off; of the first lenticular partition and the second lenticular partition, the first lenticular partition includes the first type of sub-pixels.

[0010] Optionally, the pixel includes a first type of sub-pixel and a second type of sub-pixel, and the second type of sub-pixel is configured to increase light emitting brightness.

[0011] Optionally, the aspect ratio of the first type of sub-pixels is greater than the aspect ratio of the second type of sub-pixels.

[0012] Optionally, the at least four sub-pixels of different luminous colors include a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel;

[0013] The red sub-pixel emits red light, the green sub-pixel emits green light, the blue sub-pixel emits blue light, and the white sub-pixel emits white light.

[0014] Optionally, the sub-pixels include first-type sub-pixels, which are configured to reduce light luminance or turn off; in the same pixel, the red sub-pixel, the green sub-pixel and the blue sub-pixel are first-type sub-pixels.

[0015] Optionally, the sub-pixels include first-type sub-pixels, which are configured to reduce light luminance or turn off; and the white sub-pixels are the first-type sub-pixels.

[0016] Optionally, in the same pixel, the red sub-pixel, the green sub-pixel, the blue sub-pixel and the white sub-pixel are arranged along the first direction.

[0017] Optionally, along the second direction, a plurality of red sub-pixels are repeatedly arranged;

[0018] Along the second direction, a plurality of green sub-pixels are repeatedly arranged;

[0019] Along the second direction, a plurality of blue sub-pixels are repeatedly arranged;

[0020] Along the second direction, a plurality of white sub-pixels are repeatedly arranged;

[0021] The second direction intersects with the first direction.

[0022] Optionally, the white sub-pixels in two pixels are arranged adjacent to each other.

[0023] Optionally, in the same pixel, the red sub-pixel, the green sub-pixel and the blue sub-pixel are arranged along the first direction, and the white sub-pixel is located on the same side of the red sub-pixel, the green sub-pixel and the blue sub-pixel along the second direction;

[0024] The second direction intersects with the first direction.

[0025] Optionally, the pixel comprises one or more white sub-pixels.

[0026] Optionally, the plurality of cylindrical lenses are arranged along a third direction;

[0027] The cylindrical lens includes a central region and an edge region, the geometric center of the cylindrical lens is located in the central region, and along the third direction, the edge region is located outside the central region;

[0028] The orthographic projection of the first type of sub-pixel on the plane where the lenticular grating is located is located in the edge area.

[0029] On the other hand, an embodiment of the present invention provides a vehicle, including the head-up display device provided by any embodiment of the present invention, and a windshield.

[0030] On the other hand, an embodiment of the present invention provides a design method for a head-up display device, the head-up display device comprising an image source and a lenticular lens; the image source is used to generate a left-eye image beam and a right-eye image beam; the lenticular lens is located on the propagation path of the left-eye image beam and the right-eye image beam, and is used to split the left-eye image beam and the right-eye image beam for projection; the image source comprises a plurality of pixels;

[0031] Design methods include:

[0032] The control pixel is a square and includes at least four sub-pixels with different luminous colors.

[0033] Optionally, the design method further includes:

[0034] Acquire multiple light crosstalk regions on the cylindrical grating;

[0035] According to the plurality of light crosstalk regions, the lenticular grating is divided into at least two lenticular partitions, the lenticular partitions include at least two cylindrical lenses, and the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; wherein the first lenticular partition includes the light crosstalk region;

[0036] The sub-pixels in part of the pixels in the first lenticular lens partition are controlled to be first-type sub-pixels; wherein the first-type sub-pixels are configured to reduce the light luminance or turn off.

[0037] Optionally, while controlling the sub-pixels in some pixels in the first column lens partition to be first-type sub-pixels, the design method also includes: controlling the sub-pixels in the pixel other than the first-type sub-pixels to include second-type sub-pixels; wherein the second-type sub-pixels are configured to increase luminous brightness.

[0038] On the other hand, an embodiment of the present invention provides a control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the design method described in any of the above embodiments is implemented.

[0039] The head-up display device provided by the embodiment of the present invention reduces the area of ​​the sub-pixels by dividing the pixels into more sub-pixels, thereby reducing the area of ​​the sub-pixels cut by the edge of the cylindrical lens, thereby alleviating the crosstalk problem caused by the sub-pixels cut by the edge of the cylindrical lens. The sub-pixels cut by the edge of the cylindrical lens refer to the sub-pixels overlapping the edge of the cylindrical lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of a three-dimensional structure of a head-up display device provided by an embodiment of the present invention;

[0041] Figure 2 is a structural schematic diagram of a head-up display device provided by an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of the structure of pixels and sub-pixels in the prior art;

[0043] Figure 4 is a schematic structural diagram of a pixel and a sub-pixel provided by an embodiment of the present invention;

[0044] Figure 5 yes Figure 3 A distribution diagram of crosstalk of the pixel structure at low resolution;

[0045] Figure 6 yes Figure 3 A distribution diagram of crosstalk of the pixel structure at high resolution;

[0046] Figure 7 yes Figure 4 A distribution diagram of crosstalk of the pixel structure at low resolution;

[0047] Figure 8 yes Figure 4 A distribution diagram of crosstalk of the pixel structure at high resolution;

[0048] Fig. 9 is a schematic structural diagram of another head-up display device provided by an embodiment of the present invention;

[0049] Fig.10 is a structural schematic diagram of another head-up display device provided by an embodiment of the present invention;

[0050] Fig.11 is a structural schematic diagram of another head-up display device provided by an embodiment of the present invention;

[0051] Fig.12 is a structural schematic diagram of another head-up display device provided by an embodiment of the present invention;

[0052] Fig.13 is a structural schematic diagram of another head-up display device provided by an embodiment of the present invention;

[0053] Fig.14 is a structural schematic diagram of another head-up display device provided by an embodiment of the present invention;

[0054] Fig.15 is a structural schematic diagram of a carrier provided by an embodiment of the present invention;

[0055] Fig.16 A design method for a head-up display device provided by an embodiment of the present invention;

[0056] Fig.17 Another design method of a head-up display device provided by an embodiment of the present invention;

[0057] Fig.18 A schematic diagram of the structure of a control device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0058] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0059] Research has found that the crosstalk problem mainly occurs at the arc edge of the cylindrical lens in the cylindrical grating. To eliminate the crosstalk, one approach is to use a shading member to block the light emitted by the pixel in the image source that is closest to the arc edge of the cylindrical lens. However, this approach not only eliminates the crosstalk light, but also eliminates the light of pixels that do not cause crosstalk problems, which will cause the resolution of the head-up display device to decrease. Conventional cognition is based on the cylindrical grating commonly used in stereoscopic display devices, which usually blocks all pixels at the arc edge of the cylindrical lens with a shading member. Research has found that the head-up display device has a non-uniform effect on imaging, that is, the imaging light path causes the crosstalk to increase in some areas and eliminate crosstalk in some areas.

[0060] Figure 1 is a schematic diagram of a three-dimensional structure of a head-up display device provided by an embodiment of the present invention, Figure 2 is a schematic diagram of a head-up display device provided by an embodiment of the present invention, with reference to Figure 1 and Figure 2 The head-up display device includes an image source 100 and a cylindrical grating 200. The image source 100 is used to generate a left-eye image beam and a right-eye image beam; the cylindrical grating 200 is located on the propagation path of the left-eye image beam and the right-eye image beam, and the cylindrical grating 200 is used to split the left-eye image beam and the right-eye image beam for projection. The cylindrical grating 200 is a splitting element, which deflects the left-eye image beam and the right-eye image beam in different directions to project the left-eye image beam to the left eye and the right-eye image beam to the right eye. The image source 100 includes a plurality of pixels 300, and the pixel 300 includes at least 4 sub-pixels 301 of different luminous colors.

[0061] refer to Figure 1 and Figure 2The cylindrical grating 200 includes a plurality of cylindrical lenses 400 arranged periodically. However, due to the process limitation of manufacturing the cylindrical lenses 400, there will inevitably be gaps between some adjacent cylindrical lenses 400 in the cylindrical grating 200. The light emitted from the image source 100 is emitted from the gaps between the cylindrical lenses 400, which will cause the images received by the left and right eyes to cross, resulting in a crosstalk problem. Figure 3 is a schematic diagram of the structure of pixels and sub-pixels in the prior art, Figure 4 is a schematic diagram of the structure of a pixel and a sub-pixel provided in an embodiment of the present invention, with reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 In the prior art, a pixel 300 includes three sub-pixels 301 of different luminous colors. The sub-pixel 301 located at the edge of the cylindrical lens 400 will be cut by the edge of the cylindrical lens 400. The larger the area of ​​the sub-pixel 301 cut by the edge of the cylindrical lens 400 is, the more serious the crosstalk problem of the sub-pixel 301 will be. In this embodiment, the pixel 300 includes at least four sub-pixels 301 of different luminous colors, such as Figure 2 The red sub-pixel 301a, the green sub-pixel 301b, the blue sub-pixel 301c and the white sub-pixel 301d are sub-pixels 301 of different luminous colors. It can be understood that the pixel 300 is a square. The more sub-pixels 301 the pixel 300 includes, the narrower the width of its sub-pixel 301. Accordingly, the area of ​​the sub-pixel 301 cut by the edge of the cylindrical lens 400 is smaller, and the crosstalk problem of the sub-pixel 301 is also lighter.

[0062] Figure 5 yes Figure 3 The distribution diagram of crosstalk of the pixel structure at low resolution, Figure 6 yes Figure 3 The distribution diagram of crosstalk of the pixel structure at high resolution, Figure 7 yes Figure 4 The distribution diagram of crosstalk of the pixel structure at low resolution, Figure 8 yes Figure 4 The distribution diagram of crosstalk of the pixel structure at high resolution, combined with Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the colors in the figure show the degree of crosstalk. The head-up display device composed of four sub-pixels has significantly less crosstalk problems at low resolution and high resolution than the head-up display device composed of three sub-pixels.

[0063] Optionally, refer to Figure 1 and Figure 2, the lenticular grating 200 includes at least two lenticular partitions 210, and the lenticular partition 210 includes at least two lenticular lenses 400; the at least two lenticular partitions 210 include a first lenticular partition 201 and a second lenticular partition 202; the sub-pixel 301 includes a first type of sub-pixel 3011, and the first type of sub-pixel 3011 is configured to reduce the luminous brightness or extinguish. That is, on the basis of the original luminous brightness, for example, by multiplying a proportional coefficient or other methods, to reduce its luminous brightness. Or, the original luminous brightness is changed to non-luminous. In both the first lenticular partition 201 and the second lenticular partition 202, the first lenticular partition 201 includes a first type of sub-pixel 3011. The first type of sub-pixel 3011 is set in the first lenticular partition 201, and the first type of sub-pixel 3011 is not set in the second lenticular partition 202. The light emitted by the first type of sub-pixel 3011 will be incident on the first lenticular partition 201, but will not be incident on the second lenticular partition 202. There may be a small amount of crosstalk light in the second lenticular partition 202, or there may be no crosstalk light, so there is no need to set the first type of sub-pixel 3011, which at least improves the resolution of the second lenticular partition 202, thereby improving the resolution of the head-up display device. Figure 2 Two lenticular subareas 210 are used as an example, but the present invention is not limited thereto. In other embodiments, the lenticular grating 200 may also be provided with other numbers of lenticular subareas 210. The embodiment of the present invention does not limit the number of sub-pixels 301 covered by each lenticular lens 400.

[0064] As an example, refer to Figure 2 , the first cylindrical sub-region 201 is an area where the crosstalk problem exists, and the light emitted by the first type of sub-pixel 301 will pass through the first cylindrical sub-region 201, while the second cylindrical sub-region 202 is an area where there is no crosstalk problem, and the light emitted by the first type of sub-pixel 301 will not pass through the second cylindrical sub-region 202. The first type of sub-pixel 3011 can be determined by a reverse tracing method: first, the image output by the head-up display device is received by a receiver, and the position of the crosstalk light in the image received by the receiver is determined, and then according to the position of the crosstalk light, the sub-pixel 301 on the image source 100 that outputs these crosstalk lights is obtained by reverse tracing the light path, and the sub-pixel 301 on the image source 100 that outputs these crosstalk lights is the first type of sub-pixel 3011. It can be understood that the light emitted by the first type of sub-pixel 3011 is not all the light that will cause crosstalk. In the first cylindrical sub-region 201, there are positions where crosstalk lights exist, and there are also positions where crosstalk lights do not exist.

[0065] By reducing the brightness of the first type of sub-pixel 3011 or turning it off, the crosstalk light incident on the first cylindrical mirror partition 201 is reduced, and the light that causes the crosstalk problem can be reduced or even eliminated. The reason for only reducing the light incident on the first cylindrical mirror partition 201 is that if the light incident on the second cylindrical mirror partition 202 without the crosstalk problem is also reduced, the light emission of the sub-pixel of the image source 100 will be reduced, resulting in a decrease in the resolution of the head-up display device and affecting the imaging quality. However, if the light incident on the first cylindrical mirror partition 201 is reduced, the light that generates crosstalk can be accurately reduced, and at the same time, the imaging quality of the second cylindrical mirror partition 202 will not be affected, the impact on the resolution of the head-up display device is reduced, and the image quality output by the head-up display device is improved.

[0066] The head-up display device provided by the embodiment of the present invention reduces the light incident on the first column lens partition by reducing the luminance or extinguishing the first type of sub-pixel, while not affecting the light incident on the second column lens partition, thereby reducing the light that causes crosstalk problems, thereby alleviating the crosstalk problem of the head-up limiting device; at the same time, since the light incident on the second column lens partition is not affected, the problem of resolution reduction caused by the reduction of output light of the head-up display device is reduced. In addition, the head-up display device reduces the area of ​​the sub-pixel by dividing the pixel into more sub-pixels, thereby reducing the area of ​​the sub-pixel cut by the edge of the column lens 400, thereby alleviating the crosstalk problem caused by the sub-pixel cut by the edge of the column lens 400.

[0067] Fig. 9 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig. 9 , the pixel 300 includes a first type of sub-pixel 3011 and a second type of sub-pixel 3012, and the second type of sub-pixel 3012 is configured to increase the luminous brightness. The first type of sub-pixel 3011 is a sub-pixel with a crosstalk problem. The first type of sub-pixel 3011 needs to be reduced in brightness or turned off to alleviate the crosstalk problem. However, if only the brightness of the first type of sub-pixel 3011 is reduced, the brightness of some pixels will be reduced, the image quality seen by the user will be reduced, and the binocular fusion effect of the image will also be worse. The second type of sub-pixel 3012 is a sub-pixel without a crosstalk problem. The second type of sub-pixel 3012 located in the same pixel 300 as the first type of sub-pixel 3011 is configured to increase the luminous brightness, which can compensate for the reduced brightness of the first type of sub-pixel 3011 in the same pixel 300, so that the brightness of the pixel remains unchanged, and the binocular fusion effect of the image is improved.

[0068] Optionally, refer to Fig. 9, the aspect ratio of the first type of sub-pixel 3011 is greater than the aspect ratio of the second type of sub-pixel 3012. The size of the pixel 300 is fixed, and the smaller the aspect ratio of the first type of sub-pixel 3011, the wider the first type of sub-pixel 3011, the larger the area of ​​the first type of sub-pixel 3011, and the more serious the crosstalk problem caused by it. By making the aspect ratio of the first type of sub-pixel 3011 greater than the aspect ratio of the second type of sub-pixel 3012, the area of ​​the first type of sub-pixel 3011 can be made smaller, thereby reducing the crosstalk problem caused by the first type of sub-pixel 3011.

[0069] Optionally, at least four sub-pixels of different luminous colors include red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels; red sub-pixels emit red light, green sub-pixels emit green light, blue sub-pixels emit blue light, and white sub-pixels emit white light. Common pixels are usually composed of red sub-pixels, green sub-pixels, and blue sub-pixels. Adding white sub-pixels can reduce the area of ​​sub-pixels, so that the area of ​​sub-pixels cut by the edge of the cylindrical lens 400 is smaller, reducing the crosstalk problem of sub-pixels.

[0070] In the same pixel, when one of the red sub-pixel, the green sub-pixel and the blue sub-pixel is a first-class sub-pixel, if the brightness of one sub-pixel is adjusted alone, the color displayed by the pixel will be affected, thereby causing the image quality displayed by the head-up display device to deteriorate. Optionally, in the same pixel, the red sub-pixel, the green sub-pixel and the blue sub-pixel are first-class sub-pixels, or the white sub-pixel is a first-class sub-pixel. When one of the red sub-pixel, the green sub-pixel and the blue sub-pixel is a first-class sub-pixel, in order to prevent the color displayed by the pixel from changing, the red sub-pixel, the green sub-pixel and the blue sub-pixel should all be first-class sub-pixels, and the brightness of the red sub-pixel, the green sub-pixel and the blue sub-pixel should be reduced synchronously, and the brightness of the white sub-pixel should be increased, so as to reduce the variables when adjusting the brightness, simplify the adjustment strategy, and improve the display effect of the head-up display device. The white sub-pixel is only used to adjust the brightness of the pixel. When the white sub-pixel in the pixel is a first-class sub-pixel, adjusting only the white sub-pixel will not affect the color displayed by the pixel. Therefore, the white sub-pixel can be a first-class sub-pixel alone.

[0071] Fig.10 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig.10 In the same pixel, the red sub-pixel 301a, the green sub-pixel 301b, the blue sub-pixel 301c and the white sub-pixel 301d are arranged along the first direction X. In this way, the aspect ratio of the sub-pixel 301 can be larger, and the width of the sub-pixel 301 can be narrower, so that the area of ​​the sub-pixel 301 cut by the edge of the cylindrical lens 400 can be smaller.

[0072] Optionally, along the second direction Y, multiple red sub-pixels 301a are repeatedly arranged; along the second direction Y, multiple green sub-pixels 301b are repeatedly arranged; along the second direction Y, multiple blue sub-pixels 301c are repeatedly arranged; along the second direction Y, multiple white sub-pixels 301d are repeatedly arranged; wherein the second direction Y intersects with the first direction X.

[0073] Fig.11 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig.11 , the white sub-pixels 301d in the two pixels 300 are arranged adjacent to each other, so that all the sub-pixels 301 located on the orthographic projection of the edge of the cylindrical lens 400 are white sub-pixels 301d, so that the first type of sub-pixels 3011 only include white sub-pixels 301d. Therefore, when adjusting the brightness of the sub-pixels 301, it is only necessary to reduce the brightness of the white sub-pixel 301d of the first type of sub-pixel 3011, and increase the brightness of the red sub-pixel 301a, green sub-pixel 301b and blue sub-pixel 301c in the same pixel 300 as the first type of sub-pixel 3011, thereby making the adjustment strategy simpler.

[0074] Fig.12 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig.12 In the same pixel, the red sub-pixel 301a, the green sub-pixel 301b and the blue sub-pixel 301c are arranged along the first direction, and the white sub-pixel 301d is located on the same side of the red sub-pixel 301a, the green sub-pixel 301b and the blue sub-pixel 301c along the second direction Y; wherein the second direction Y intersects the first direction X.

[0075] Fig.13 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig.12 and Fig.13 , the pixel includes one or more white sub-pixels 301d. Fig.13 The pixel shown includes a plurality of white sub-pixels 301d.

[0076] Fig.14 is a schematic diagram of the structure of another head-up display device provided by an embodiment of the present invention, referring to Fig.14, a plurality of cylindrical lenses 400 are arranged along a third direction X1. In one embodiment, the third direction X1 may be perpendicular to the extension direction of the cylindrical lenses 400. There is an angle of 0° to 90° between the third direction X1 and the first direction X, and there is an angle of 0° to 90° between the third direction X1 and the second direction Y. The cylindrical lens 400 includes a central area 401 and an edge area 402, the geometric center of the cylindrical lens 400 is located in the central area 401, and along the third direction X1, the edge area 402 is located at the periphery of the central area 401; the orthographic projection of the first type of sub-pixel 3011 on the plane where the cylindrical grating is located is located in the edge area 402. Since the light emitted from the gaps between the cylindrical lenses 400 will cause crosstalk, the first type of sub-pixel 3011 is usually located in the edge area 402 of the cylindrical lens 400.

[0077] Based on the same inventive concept, an embodiment of the present invention provides a vehicle, including the head-up display device provided by any embodiment of the present invention, and a windshield.

[0078] Fig.15 is a schematic diagram of a structure of a carrier provided by an embodiment of the present invention, with reference to Fig.15 The image source 100 outputs image light, and the image light propagates to the curved reflector 500 after passing through the cylindrical grating 200. The curved reflector 500 reflects the image light onto the windshield 600 of the vehicle, and the windshield 600 then reflects the image light into the eye box 800. When the human eye observes the image light, a virtual image 700 is produced.

[0079] Based on the same inventive concept, an embodiment of the present invention provides a design method for a head-up display device, referring to Figure 1 and Figure 2 The head-up display device includes an image source 100 and a cylindrical lens grating 200; the image source 100 is used to generate a left-eye image beam and a right-eye image beam; the cylindrical lens grating 200 is located on the propagation path of the left-eye image beam and the right-eye image beam, and is used to split the left-eye image beam and the right-eye image beam for projection. The image source 100 includes a plurality of pixels 300. The design method of the head-up display device includes: controlling the pixel to be a square, and controlling the pixel to include at least 4 sub-pixels of different luminous colors. The pixels 300 are all square, and the more sub-pixels 301 included in the pixel 300, the narrower the width of the sub-pixel 301, and accordingly, the area of ​​the sub-pixel 301 cut by the edge of the cylindrical lens 400 is smaller, and the crosstalk problem of the sub-pixel 301 is also lighter.

[0080] Optionally, Fig.16 A design method of a head-up display device provided by an embodiment of the present invention is provided. Fig.16 , the design methods include:

[0081] S101, acquiring a plurality of light crosstalk regions on a cylindrical grating.

[0082] Specifically, the light on the receiving surface is first obtained, the receiving surface refers to the plane where the eye box is located, and the light on the receiving surface represents the light seen by the user during the use of the head-up display device. Then, the crosstalk light in the light on the receiving surface is determined, and the distribution of the crosstalk light on the lenticular grating is traced back according to the optical path of the crosstalk light on the receiving surface, and according to the distribution of the crosstalk light on the lenticular grating, multiple light crosstalk areas on the lenticular grating are obtained.

[0083] S102. Divide the lenticular grating into at least two lenticular partitions according to the plurality of light crosstalk regions, wherein the lenticular partitions include at least two cylindrical lenses, and the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; wherein the first lenticular partition includes the light crosstalk region.

[0084] If the sub-pixels near the edge of the cylindrical lens on the image source are turned off indiscriminately, the sub-pixels without crosstalk problems will also be turned off, and the resolution of the head-up display device will be reduced, affecting the image quality. Distinguishing between the light crosstalk area and the non-light crosstalk area can reduce the impact of turning off the sub-pixels or reducing the brightness of the sub-pixels on the resolution, thereby reducing the crosstalk phenomenon and improving the image quality.

[0085] S103 , controlling sub-pixels in some pixels in the first lenticular lens partition to be first-type sub-pixels, where the first-type sub-pixels are configured to reduce light luminance or turn off.

[0086] By reducing the brightness of the first type of sub-pixels or turning them off, and reducing the light incident on the first column mirror partition, the light that causes crosstalk problems can be reduced or even eliminated. The reason for only reducing the light incident on the first column mirror partition is that if the light incident on the second column mirror partition that does not have a crosstalk problem is also reduced, the light emission of the sub-pixels of the image source will be reduced, resulting in a decrease in the resolution of the head-up display device and affecting the imaging quality. However, if the light incident on the first column mirror partition is reduced, the light that causes crosstalk can be accurately reduced, and at the same time, the imaging quality of the second column mirror partition will not be affected, reducing the impact on the resolution of the head-up display device and improving the image quality output by the head-up display device.

[0087] The design method of the head-up display device provided in the embodiment of the present invention reduces the light incident on the first column mirror partition by only extinguishing the first type of sub-pixels or reducing the brightness of the first type of sub-pixels, thereby alleviating the crosstalk problem of the head-up display device; at the same time, since the light incident on the second column mirror partition is not affected, the problem of resolution reduction of the head-up display device due to the reduction of output light is reduced.

[0088] Fig.17 Another design method of a head-up display device provided by an embodiment of the present invention is as follows: Fig.17 The design method shown is based on the above embodiment, and further explains how to improve the display effect of the head-up display device while eliminating the crosstalk problem. Fig.17 , the design methods include:

[0089] S201, acquiring a plurality of light crosstalk regions on a cylindrical grating.

[0090] S202. Divide the lenticular grating into at least two lenticular partitions according to the plurality of light crosstalk regions, wherein the lenticular partitions include at least two cylindrical lenses, and the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; wherein the first lenticular partition includes the light crosstalk region.

[0091] S203, controlling the sub-pixels in some pixels in the first column lens partition to be first-type sub-pixels, and controlling the sub-pixels in the pixels other than the first-type sub-pixels to include second-type sub-pixels; the first-type sub-pixels are configured to reduce luminous brightness or turn off, and the second-type sub-pixels are configured to increase luminous brightness.

[0092] Specifically, the brightness of the first type of sub-pixels needs to be reduced or turned off to reduce the crosstalk problem, but if only the brightness of the first type of sub-pixels is reduced, the brightness of some pixels will be reduced, the image quality seen by the user will be reduced, and the binocular fusion effect of the image will also be worse. The second type of sub-pixels located in the same pixel as the first type of sub-pixels are configured to increase the luminous brightness, which can compensate for the reduced brightness of the first type of sub-pixels in the same pixel, keep the brightness of the pixel unchanged, and thus improve the binocular fusion effect of the image.

[0093] Fig.18 A schematic diagram of a control device according to an embodiment of the present invention is provided. Fig.18 The control device 60 includes a memory 602, a processor 601, and a computer program stored in the memory 602 and executable on the processor. When the processor 601 executes the program, the method in the above embodiment is implemented. Fig.18 A block diagram of an exemplary control device suitable for implementing embodiments of the present invention is shown. Fig.18 The control device 60 shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention. Fig.18 As shown, the control device 60 is in the form of a general computing device. The components of the control device 60 may include but are not limited to: one or more processors 601, a system memory 602, and a bus 603 connecting different system components (including the system memory 602 and the processor 601).

[0094] Bus 603 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus and Peripheral Component Interconnect (PCI) bus.

[0095] The control device 60 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the control device 60, including volatile and non-volatile media, removable and non-removable media.

[0096] System memory 602 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 604 and / or cache memory 605. Control device 60 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 606 may be used to read and write non-removable, non-volatile magnetic media ( Fig.18 not shown, usually called a "hard drive"). Although Fig.18 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 603 via one or more data medium interfaces. The system memory 602 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the embodiments of the present invention.

[0097] A program / utility 608 having a set (at least one) of program modules 607 may be stored, for example, in system memory 602, such program modules 607 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. Program modules 607 generally perform the functions and / or methods of the embodiments described herein.

[0098] The control device 60 may also communicate with one or more external devices 609 (e.g., keyboard, pointing device, display 610, etc.), one or more devices that enable a user to interact with the device, and / or any device that enables the control device 60 to communicate with one or more other computing devices (e.g., network card, modem, etc.). Such communication may be performed through an input / output (I / O) interface 611. Furthermore, the control device 60 may also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN) and / or public network, such as the Internet) through a network adapter 612. Fig.18 As shown, the network adapter 612 communicates with other modules of the control device 60 via the bus 603. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the control device 60, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0099] The processor 601 executes various functional applications and data processing by running programs stored in the system memory 602 .

[0100] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A head-up display device, characterized in that: include: An image source, the image source being used to generate a left-eye image beam and a right-eye image beam; A cylindrical grating, located on the propagation paths of the left-eye image beam and the right-eye image beam, and used for splitting and projecting the left-eye image beam and the right-eye image beam; The image source includes a plurality of pixels, each pixel is square, and each pixel includes at least four sub-pixels with different luminous colors.

2. The head-up display device according to claim 1, characterized in that: The lenticular grating includes at least two lenticular partitions, and the lenticular partitions include at least two cylindrical lenses; the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; The sub-pixels include a first type of sub-pixels, which are configured to reduce light luminance or be turned off; in both the first lenticular partition and the second lenticular partition, the first lenticular partition includes the first type of sub-pixels.

3. The head-up display device according to claim 2, characterized in that: The pixel includes the first type of sub-pixels and a second type of sub-pixels, and the second type of sub-pixels are configured to increase light emission brightness.

4. The head-up display device according to claim 3, characterized in that: The aspect ratio of the first type of sub-pixels is greater than the aspect ratio of the second type of sub-pixels.

5. The head-up display device according to claim 1, characterized in that: The at least four sub-pixels of different luminous colors include a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel; The red sub-pixel emits red light, the green sub-pixel emits green light, the blue sub-pixel emits blue light, and the white sub-pixel emits white light.

6. The head-up display device according to claim 5, characterized in that: The sub-pixels include a first type of sub-pixels, and the first type of sub-pixels are configured to reduce light emission brightness or turn off; In the same pixel, the red sub-pixel, the green sub-pixel and the blue sub-pixel are sub-pixels of the first type.

7. The head-up display device according to claim 5, characterized in that: The sub-pixels include a first type of sub-pixels, and the first type of sub-pixels are configured to reduce light emission brightness or turn off; The white sub-pixel is the first type of sub-pixel.

8. The head-up display device according to claim 5, characterized in that: In the same pixel, the red sub-pixel, the green sub-pixel, the blue sub-pixel and the white sub-pixel are arranged along a first direction.

9. The head-up display device according to claim 8, characterized in that: Along the second direction, a plurality of the red sub-pixels are repeatedly arranged; Along the second direction, a plurality of the green sub-pixels are repeatedly arranged; Along the second direction, a plurality of the blue sub-pixels are repeatedly arranged; Along the second direction, a plurality of the white sub-pixels are repeatedly arranged; The second direction intersects with the first direction.

10. The head-up display device according to claim 8, characterized in that: The white sub-pixels in the two pixels are arranged adjacent to each other.

11. The head-up display device according to claim 5, characterized in that: In the same pixel, the red sub-pixel, the green sub-pixel and the blue sub-pixel are arranged along the first direction, and the white sub-pixel is located on the same side of the red sub-pixel, the green sub-pixel and the blue sub-pixel along the second direction; The second direction intersects with the first direction.

12. The head-up display device according to claim 11, characterized in that: The pixel includes one or more white sub-pixels.

13. The head-up display device according to claim 2, characterized in that: The plurality of cylindrical lenses are arranged along a third direction; The cylindrical lens comprises a central region and an edge region, the geometric center of the cylindrical lens is located in the central region, and along the third direction, the edge region is located at the periphery of the central region; The orthographic projection of the first type of sub-pixel on the plane where the lenticular grating is located is located in the edge area.

14. A carrier, characterized in that: It comprises the head-up display device according to any one of claims 1 to 13, and a windshield.

15. A design method for a head-up display device, characterized in that: The head-up display device includes an image source and a lenticular lens; the image source is used to generate a left-eye image beam and a right-eye image beam; the lenticular lens is located on the propagation paths of the left-eye image beam and the right-eye image beam, and is used to split and project the left-eye image beam and the right-eye image beam; the image source includes a plurality of pixels; The design method includes: controlling the pixel to be a square, and controlling the pixel to include at least 4 sub-pixels with different luminous colors.

16. The design method according to claim 15, characterized in that: Also includes: Acquire a plurality of light crosstalk regions on the cylindrical grating; According to the plurality of light crosstalk regions, the lenticular grating is divided into at least two lenticular partitions, the lenticular partitions include at least two cylindrical lenses, and the at least two lenticular partitions include a first lenticular partition and a second lenticular partition; wherein the first lenticular partition includes the light crosstalk region; The sub-pixels in part of the pixels in the first lenticular lens partition are controlled to be first-type sub-pixels; wherein the first-type sub-pixels are configured to reduce light luminance or be turned off.

17. The design method according to claim 16, characterized in that: While controlling the sub-pixels in some pixels in the first column lens partition to be first-type sub-pixels, the design method also includes: controlling the sub-pixels in the pixel other than the first-type sub-pixels to include second-type sub-pixels; wherein the second-type sub-pixels are configured to increase luminous brightness.

18. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the design method as described in any one of claims 15 to 17 is implemented.

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