Display system, display device, and display method

Abstract

The application provides a display system, a display device and a display method, and relates to the technical field of projection display. The display system comprises a driving module and a display module. The driving module comprises a target-like image extraction marking module, a time sequence color separation module and a time sequence output module. The display module comprises a backlight time sequence control module and a pixel circuit module. The target-like image extraction marking module is used for extracting a target-like image from a color video source. The time sequence color separation module is used for time sequence separation of the color video source to obtain a plurality of sets of subframes. The time sequence output module is used for outputting each set of subframes in sequence. The pixel circuit module is used for displaying the target-like image and each monochrome subframe. The backlight time sequence control module is used for adjusting the backlight of the plurality of monochrome subframes and / or the target-like image. The application reduces color ghosting at the color edge, makes the display clearer, improves the visual experience and reduces visual fatigue.

Description

Technical Field

[0001] This application relates to the field of projection display technology, and more specifically, to a display system, display device, and display method. Background Technology

[0002] With the continuous advancement of display technology, various augmented reality (AR) products, such as AR glasses, have begun to be launched on the market, and the problem of image distortion caused by head or eye movements has become increasingly prominent.

[0003] In traditional display technology, a standard image frame is typically divided into three subframes: red, green, and blue, to achieve RGB color display. When the frame rate exceeds the visual acuity threshold of the human eye, the eye naturally blends these three primary color subframes, perceiving them as a complete color image. However, the human eye is not in a completely static state. When the pupil or head moves, the primary color subframes are projected onto different positions of the retina, causing color ghosting at color edges. This not only makes the image appear blurry but also causes visual fatigue after prolonged viewing, severely impacting the user's visual experience. Summary of the Invention

[0004] The purpose of this application is to address the shortcomings of the prior art by providing a display system, display device, and display method to solve the problem that images appear blurry and cause visual fatigue after prolonged viewing, thus seriously affecting the user's visual experience.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows: In a first aspect, embodiments of this application provide a display system, including: a driving module and a display module; the driving module includes at least a target image extraction and marking module, a timing color separation module and a timing output module, and the display module includes a backlight timing control module and a pixel circuit module; The output terminals of the target image extraction and marking module and the temporal color separation module are respectively connected to the input terminal of the temporal output module, and the output terminal of the temporal output module is respectively connected to the input terminal of the backlight timing control module and the input terminal of the pixel circuit module. The target image extraction and labeling module is used to extract target images from a color video source, wherein the target image is the first frame of the color video source with edge information; The temporal color separation module is used to perform temporal separation on the color video source to obtain multiple sets of subframes, each set of subframes including multiple monochrome subframes. The timing output module is used to output each set of subframes in the order of each set of subframes. When outputting any set of subframes, the target image and each monochrome subframe in the set of subframes are output sequentially. The target image and each monochrome subframe in the set of subframes are spatially stacked with the visual center as the projection reference. The pixel circuit module is used to display the target image and each of the monochrome subframes, and the backlight timing control module is used to adjust the backlight of the plurality of monochrome subframes and / or the target image; Adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: The original backlight starting point of the monochrome subframe is adjusted according to the preset constraint information. Original backlight intensity and the original backlight duration To obtain the new backlight starting point New backlight intensity And the new backlight duration ; The constraint information includes: ; Among them, the new backlight intensity Greater than the original backlight intensity New backlight duration Less than the original backlight duration .

[0006] As one possible implementation, the extraction of target images from a color video source includes: Edge detection is performed on the first frame of the color video source to obtain the first-stage edge image; Extract the minimum sub-pixel value corresponding to each first edge pixel in the first stage edge image, and generate the second stage edge image based on the minimum sub-pixel value corresponding to each first edge pixel. Extract the minimum sub-pixel value corresponding to each second edge pixel in the second-stage edge image, and generate the third-stage edge image based on the minimum sub-pixel value corresponding to each second edge pixel. The edge image of the third stage is used as the target image of the class.

[0007] As one possible implementation, the step of performing edge detection on the first frame image of the color video source to obtain a first-stage edge image includes: Based on a preset sharpness enhancement level, edge detection is performed on the first frame image to obtain the first stage edge image; The preset sharpness enhancement levels include any of the following: Level 1 sharpness enhancement, Level 2 sharpness enhancement, Level 3 sharpness enhancement, and no sharpness enhancement.

[0008] As one possible implementation, adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: If the proportion of second edge pixels in the second-stage edge image that are target monochromatic light is greater than a preset proportion, then the backlight of the target image will be adjusted to the target monochromatic light.

[0009] As one possible implementation, the initial backlight corresponding to the target image is white light, and the backlight corresponding to each monochrome subframe is the monochrome light corresponding to each monochrome subframe.

[0010] As one possible implementation, the step of outputting each set of subframes in the order of the subframe sets includes: According to the order of each set of subframes, each monochrome subframe in the set is output according to a preset interval time and a preset output frame rate. The preset interval time is greater than the liquid crystal response time, and the preset output frame rate is a preset multiple of the input frame rate.

[0011] As one possible implementation, the driver module also includes a sequence storage module and a display format conversion module; The output terminals of the target image extraction and labeling module and the temporal color separation module are respectively connected to the input terminal of the sequence storage module. The output terminal of the sequence storage module is connected to the input terminal of the display format conversion module, and the output terminal of the display format conversion module is connected to the input terminal of the temporal output module. The sequence storage module is used to store each set of subframes in the order of each set of subframes, wherein when storing any set of subframes, the target image and each monochrome subframe in the set of subframes are stored sequentially. The display format conversion module is used to convert the format of each monochrome subframe in each set of subframes and the target image according to the data format corresponding to the display module.

[0012] Secondly, embodiments of this application provide a display device, which includes the display system described in any of the first aspects above. Thirdly, embodiments of this application provide a display method applied to the display system described in any of the first aspects above, the method comprising: The target image extraction and labeling module extracts target images from a color video source, wherein the target image is the first frame of the color video source containing edge information. The temporal color separation module performs temporal separation on the color video source to obtain multiple sets of subframes, each set of subframes including multiple monochrome subframes. The timing output module outputs each set of subframes in the order of each set of subframes. When outputting any set of subframes, the target image and each monochrome subframe in the set of subframes are output sequentially. The target image and each monochrome subframe in the set of subframes are spatially stacked with the visual center as the projection reference. The pixel circuit module displays the target image and each of the monochrome subframes, and the backlight timing control module adjusts the backlight of the plurality of monochrome subframes and / or the target image; Adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: The original backlight starting point of the monochrome subframe is adjusted according to the preset constraint information. Original backlight intensity and the original backlight duration To obtain the new backlight starting point New backlight intensity And the new backlight duration ; The constraint information includes: ; Among them, the new backlight intensity Greater than the original backlight intensity New backlight duration Less than the original backlight duration .

[0013] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the display method as described in any of the third aspects above.

[0014] According to the display system, display device, and display method of this application, a target image extraction and marking module extracts a first frame of target image with edge information from a color video source, and a temporal color separation module decomposes the color video source into multiple sets of monochrome subframes. Then, a temporal output module outputs each set of subframes in the order of their respective sets. Specifically, when outputting any set of subframes, the target image and each monochrome subframe in the set are output sequentially. Correspondingly, during the display process, each monochrome subframe in each set of subframes and the extracted target image are spatially superimposed on each other with the visual center as the reference. Simultaneously, a backlight timing control module precisely adjusts the backlight of multiple monochrome subframes and / or the target image. Based on this, the display system provided by this application effectively suppresses color ghosting caused by head or eye movements by optimizing the accuracy of color synthesis and edge rendering, significantly improving display clarity, reducing visual fatigue caused by prolonged viewing, and thus significantly enhancing the user's visual experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This paper illustrates a schematic diagram of the architecture of a display system provided in an embodiment of this application. Figure 2 A schematic diagram of the architecture of another display system provided in an embodiment of this application is shown; Figure 3 This illustration shows an ideal state diagram of projection display using time-series color, provided by an embodiment of this application. Figure 4 This illustration shows a schematic diagram of an actual state of projection display using time-series color, provided by an embodiment of this application. Figure 5 This illustration shows an improved state diagram of projection display using time-series color, provided by an embodiment of this application. Figure 6 A flowchart illustrating a target image extraction method provided in an embodiment of this application is shown. Figure 7 A schematic diagram of a histogram provided in an embodiment of this application is shown; Figure 8 A schematic diagram of another histogram provided in an embodiment of this application is shown; Figure 9A schematic diagram of another histogram provided in an embodiment of this application is shown; Figure 10 This illustration shows a backlight control timing diagram of a conventional timing color display according to an embodiment of this application; Figure 11 This illustration shows a backlight control timing diagram of an improved timing color display according to an embodiment of this application; Figure 12 This illustration shows a schematic diagram of a switching interval area provided in an embodiment of this application; Figure 13 This illustration shows a schematic diagram of a switching interval between two consecutive subframes provided in an embodiment of this application.

[0017] Reference numerals: Driving module-10; Display module-11; Target image extraction and labeling module-101; Timing color separation module-102; Timing output module-103; Sequence storage module-104; Display format conversion module-105; Pixel circuit module-111; Backlight timing control module-112. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the accompanying drawings in this application are for illustrative and descriptive purposes only and are not intended to limit the scope of protection of this application. Furthermore, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of this application. It should be understood that the operations in the flowcharts may not be implemented in sequence, and steps without logical contextual relationships may be reversed or implemented simultaneously. In addition, those skilled in the art, guided by the content of this application, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts.

[0019] Furthermore, the described embodiments are merely some, not all, of the embodiments of this application. The components of the embodiments of this application described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] It should be noted that the term "comprising" will be used in the embodiments of this application to indicate the presence of the features declared thereafter, but does not exclude the addition of other features.

[0021] Figure 1 A schematic diagram of the architecture of a display system provided in an embodiment of this application is shown. (Refer to...) Figure 1 As shown, the display system includes a driving module 10 and a display module 11. The driving module 10 includes at least a target image extraction and marking module 101, a timing color separation module 102, and a timing output module 103. The display module 11 includes a backlight timing control module 111 and a pixel circuit module 112.

[0022] Optionally, refer to Figure 1 As shown, the output terminals of the target image extraction and labeling module 101 and the timing color separation module 102 are respectively connected to the input terminals of the timing output module 103. The output terminals of the timing output module 103 are respectively connected to the input terminals of the backlight timing control module 111 and the pixel circuit module 112.

[0023] Optionally, the target image extraction and marking module 101 and the temporal color separation module 102 each receive a color video source. The target image extraction and marking module 101 extracts a target image from the received color video source, where the target image is the first frame of the color video source containing edge information. Simultaneously, the temporal color separation module 102 performs temporal separation on the received color video source to obtain multiple sets of subframes, each set including multiple monochrome subframes. Further, the target image processed by the target image extraction and marking module 101 and the multiple sets of subframes processed by the temporal color separation module 102 are output via the temporal output module 103 to the pixel circuit module 111 and the backlight timing control module 112 in the display module 11. Specifically, the timing output module 103 is used to output each set of subframes in the order of each set. When outputting any set of subframes, the target image and each monochrome subframe in the set are output sequentially. The target image and each monochrome subframe in the set are spatially stacked with the visual center as the projection reference. The pixel circuit module 111 is used to display the received target image and each monochrome subframe, and the backlight timing control module 112 is used to adjust the backlight of multiple monochrome subframes and / or the target image.

[0024] Figure 2 A schematic diagram illustrating the architecture of another display system provided in an embodiment of this application is shown. (Refer to...) Figure 2 As shown, the driving module 10 also includes a sequence storage module 104 and a display format conversion module 105.

[0025] Optionally, refer to Figure 2As shown, the output terminals of the target image extraction and labeling module 101 and the timing color separation module 102 are respectively connected to the input terminals of the sequence storage module 104. The output terminal of the sequence storage module 104 is connected to the input terminal of the display format conversion module 105. The output terminal of the display format conversion module 105 is connected to the input terminal of the timing output module 103. The output terminal of the timing output module 103 is respectively connected to the pixel circuit module 111 and the backlight timing control module 112.

[0026] Optionally, the sequence storage module 104 is used to store each set of subframes in the order of the sets, wherein when storing any set of subframes, the target image and each monochrome subframe in the set are stored sequentially. The display format conversion module 105 is used to convert the monochrome subframes and the target image in each set of subframes according to the data format corresponding to the display module 11, so as to adapt to the display format of the display module 11. It is worth noting that the sequence storage module 104, as an intermediate asynchronous processing unit, can ensure a tear-free visual effect.

[0027] Based on the above, this application provides a display system for improving the clarity of projected displays. The effects achieved by the display system of this application will be described below with reference to specific projection display effect diagrams.

[0028] Figure 3 This diagram illustrates an ideal state for projection display using time-sequential color, as provided in an embodiment of this application. (Refer to...) Figure 3 As shown, the spatial positional relationship between the projection subframe R, projection subframe G, and projection subframe and the visual center of the human eye is fixed, and all three subframes are displayed within the boundary with vertices A, B, C, and D.

[0029] Figure 4 This diagram illustrates an actual state of projection display using time-sequential color, as provided in an embodiment of this application. (Refer to...) Figure 4 As shown, the spatial relationship between the projection subframe R, projection subframe G, and projection subframe and the center of human vision has changed. The three subframes are not displayed within the boundary with vertices A, B, C, and D. This will cause the RGB components of the same pixel position in the projection subframe R, projection G, and projection B to not coincide at the center of human vision, thus causing visual blurring.

[0030] Figure 5 This diagram illustrates an improved state of projection display using time-sequential color, as provided in an embodiment of this application. (Refer to...) Figure 5As shown, an edge-oriented target image is inserted before the original monochrome subframes, i.e., before the projection subframes R, G, and B (closer to the visual center). This target image is extracted from the color video source by the target image extraction and marking module 101 and designated as the projection subframe M. Then, the projection subframes R, G, and B are displayed sequentially. This reduces color ghosting at color edges to some extent, making the image clearer and improving the visual experience while reducing eye strain.

[0031] As one possible implementation, the target image extraction and labeling module 101 extracts the target image from the color video source through three stages. The first stage is to perform edge detection on the first frame of the color video source to obtain the first stage edge image. The second stage is to extract the minimum sub-pixel value corresponding to each first edge pixel in the first stage edge image and generate the second stage edge image based on the minimum sub-pixel value corresponding to each first edge pixel. The third stage is to extract the minimum sub-pixel value corresponding to each second edge pixel in the second stage edge image and generate the third stage edge image based on the minimum sub-pixel value corresponding to each second edge pixel. Finally, the third stage edge image is used as the target image.

[0032] Furthermore, in the first stage described above, a sharpness enhancement level can be selected, and edge detection is performed on the first frame image according to the selected preset sharpness enhancement level to obtain the first-stage edge image. The preset sharpness enhancement level includes any one of the following: Level 1 sharpness enhancement level, Level 2 sharpness enhancement level, Level 3 sharpness enhancement level, or no sharpness enhancement level.

[0033] It should be noted that the relationship between the various sharpness enhancement levels is as follows: Level 1 sharpness enhancement level > Level 2 sharpness enhancement level > Level 3 sharpness enhancement level > No sharpness enhancement level. The higher the sharpness enhancement level, the greater the computational cost of the operator used. For example, if Level 1 sharpness enhancement is used for edge detection of the first frame, a computationally intensive operator, such as the Canny operator, is used; if Level 2 sharpness enhancement is used, a moderately computationally intensive operator, such as the Sobel operator, is used; and if Level 3 sharpness enhancement is used, a computationally intensive operator, such as the Roberts operator, is used.

[0034] Figure 6 A schematic flowchart of a target image extraction method provided in an embodiment of this application is shown. (Refer to...) Figure 6As shown, when the target image extraction and labeling module 101 extracts target images from a color video source, it first selects the first frame of the color video source as the object of edge detection for the first stage of edge detection processing. Specifically, it performs edge detection on the first frame according to a preset sharpness enhancement level to obtain the first stage edge image. Then, it enters the second stage, where the processing object of the second stage is the first stage edge image obtained in the first stage. It extracts the minimum sub-pixel value corresponding to each first edge pixel in the first stage edge image and generates the second stage edge image based on the minimum sub-pixel value corresponding to each first edge pixel. Then, it enters the third stage, where the processing object of the third stage is the second stage edge image obtained in the second stage. It extracts the minimum sub-pixel value corresponding to each second edge pixel in the second stage edge image and generates the third stage edge image based on the minimum sub-pixel value corresponding to each second edge pixel. Finally, it uses the third stage edge image obtained after the above three stages of processing as the target image.

[0035] Optionally, refer to Figures 7 to 9 The histogram shown above, for the second stage mentioned above, taking a pixel with R, G, and B components as an example, for... Figure 7 If G component > B component > R component, then the minimum sub-pixel value corresponding to each first edge pixel in the first-stage edge image is extracted, that is, the R component is extracted and retained. Figure 8 If B component > R component > G component, then the minimum sub-pixel value corresponding to each first edge pixel in the first-stage edge image is extracted, that is, the G component is extracted and retained. Figure 9 If R component > G component > B component, then the minimum value of the sub-pixel corresponding to each first edge pixel in the first stage edge image is extracted, that is, the B component is extracted and retained.

[0036] As one possible implementation, the initial backlight corresponding to the target image is white light, and the backlight corresponding to each monochrome subframe is the monochrome light corresponding to each monochrome subframe, such as red light, green light, or blue light.

[0037] As one possible implementation, the backlight timing control module 112 adjusts the backlight of multiple monochromatic subframes and / or target-like images. Specifically, for the second stage described above, if the proportion of second edge pixels in the edge image of the second stage that are target monochromatic light is greater than a preset proportion, then the backlight of the target-like image is adjusted to the target monochromatic light. That is, for the second stage, if the proportion of second edge pixels that are a single color exceeds a preset threshold, then the backlight of the target-like image is adjusted to the corresponding color light.

[0038] It is worth noting that, based on the display system provided in the embodiments of this application, for monochrome subframes, the backlight timing control module 112 improves display clarity by adjusting the backlight starting point of the monochrome subframe, increasing the backlight intensity, and shortening the backlight duration.

[0039] As one possible implementation, the backlight timing control module 112 adjusts the backlight of multiple monochrome subframes and / or target-like images, specifically including: adjusting the original backlight starting point of the monochrome subframes according to preset constraint information. Original backlight intensity and the original backlight duration To obtain the new backlight starting point New backlight intensity And the new backlight duration .

[0040] Optionally, the constraint information is shown in the following expression (1): (1) Among them, the new backlight intensity Greater than the original backlight intensity New backlight duration Less than the original backlight duration .

[0041] In other words, in this embodiment of the application, for a monochrome subframe, the backlight timing control module 112 adjusts the original backlight starting point of the monochrome subframe. Increase the original backlight intensity And shorten the original backlight duration This results in a new backlight intensity And the new backlight duration Compared to the original backlight intensity and the original backlight duration By satisfying the constraints shown in the above expression (1), the effect of improving display clarity can be achieved.

[0042] Figure 10 This illustration shows a backlight control timing diagram for a conventional timing-based color display according to an embodiment of this application. (Refer to...) Figure 10 As shown, t1_r represents the backlight illumination duration of LED_R in subframe R, v1_r represents the backlight intensity amplitude of LED_R in subframe R, t1_g represents the backlight illumination duration of LED_G in subframe G, v1_g represents the backlight intensity amplitude of LED_G in subframe G, t1_b represents the backlight illumination duration of LED_B in subframe B, and v1_b represents the backlight intensity amplitude of LED_B in subframe B.

[0043] Figure 11This illustration shows a backlight control timing diagram for an improved timing-based color display according to an embodiment of this application. (Refer to...) Figure 11 As shown, t2_w represents the backlight illumination duration of LED_W in subframe M, v2_w represents the backlight intensity amplitude of LED_W in subframe M, t2_r represents the backlight illumination duration of LED_R in subframe R, v2_r represents the backlight intensity amplitude of LED_R in subframe R, t2_g represents the backlight illumination duration of LED_G in subframe G, v2_g represents the backlight intensity amplitude of LED_G in subframe G, t2_b represents the backlight illumination duration of LED_B in subframe B, and v2_b represents the backlight intensity amplitude of LED_B in subframe B.

[0044] Optionally, combined Figure 10 and Figure 11 As shown, for the backlight illumination duration, t2_r is less than t1_r, t2_g is less than t1_g, and t2_b is less than t1_b. For the backlight intensity amplitude, v2_r is greater than v1_r, v2_g is greater than v1_g, and v2_b is greater than v1_b. The equivalent relationships between the parameters before and after the improvement are: t2_r*v2_r = t1_r*v1_r, t2_g*v2_g = t1_g*v1_g, and t2_b*v2_b = t1_b*v1_b.

[0045] As one possible implementation, the timing output module 103 outputs each set of subframes in the order of each set of subframes, specifically including: outputting each monochrome subframe in the set of subframes in the order of each set of subframes according to a preset interval time and a preset output frame rate.

[0046] Optionally, the preset interval time is greater than the liquid crystal response time to avoid color overlap and mixing between monochrome subframes. For example, refer to... Figure 12 As shown in the figure, there are four subframes: M subframe, R subframe, G subframe, and B subframe. A preset interval is set between each subframe, specifically shown in the switching interval area to separate the subframes. Figure 12 The diagram shows three handover intervals, as indicated by the black areas in the diagram: the area between the M and R subframes is area ①, the area between the R and G subframes is area ②, and the area between the G and B subframes is area ③.

[0047] Furthermore, referring to Figure 13 The diagram shows the switching interval between two consecutive subframes. Due to the delay in liquid crystal response, the liquid crystal response time tr is set between the end time te of the last line of the last line of the previous frame and the start time ts of the first line of the first line of the current frame. Then ts-te>tr, otherwise it will cause color mixing problems between different color frames.

[0048] Optionally, the preset output frame rate is a preset multiple of the input frame rate. In traditional display technology, the original output frame rate is generally 3n times the input frame rate. However, in this embodiment, in order to reduce the problem of display flicker, the output frame rate of the timing output module 103 is changed to 4n times the input frame rate.

[0049] Furthermore, in traditional time-series color display technology, only R subframes, G subframes, and B subframes are involved. The display duration of an R subframe includes the time for receiving R subframe data (RESPOND_R) and the backlight illumination time (LED_R). The display duration of a G subframe includes the time for receiving G subframe data (RESPOND_G) and the backlight illumination time (LED_G). The display duration of a B subframe includes the time for receiving B subframe data (RESPOND_B) and the backlight illumination time (LED_B). However, in the display system provided by the embodiments of this application, when each subframe is displayed, the subframe display duration includes: the time for the pixel circuit module 112 to receive the subframe, the backlight duration of the subframe, and the frame interval time. Specifically, the display duration of the M subframe includes the time for receiving M subframe data (RESPOND_M), the backlight illumination time (LED_W), and the frame interval time; the display duration of the R subframe includes the time for receiving R subframe data (RESPOND_R), the backlight illumination time (LED_R), and the frame interval time; the display duration of the G subframe includes the time for receiving G subframe data (RESPOND_G), the backlight illumination time (LED_G), and the frame interval time; and the display duration of the B subframe includes the time for receiving B subframe data (RESPOND_B), the backlight illumination time (LED_B), and the frame interval time.

[0050] This application also provides a display device, including the display system described in any of the above embodiments.

[0051] This application embodiment also provides a display method applied to the display system described in any of the above claims. The method specifically includes: a target image extraction and marking module 101 extracting a target image from a color video source; a temporal color separation module 102 performing temporal separation on the color video source to obtain multiple sets of subframes, each set of subframes including multiple monochrome subframes; a temporal output module 103 outputting each set of subframes in the order of the sets, wherein, when outputting any set of subframes, the target image and each monochrome subframe in the set are output sequentially; a pixel circuit module 111 displaying the target image and each monochrome subframe; and a backlight timing control module 112 adjusting the backlight of the multiple monochrome subframes and / or the target image.

[0052] The specific implementation of the above methods and steps has been explained above and will not be repeated here.

[0053] In summary, the display system, display device, and display method provided in this application improve the color separation problem caused by the phase shift of human vision and the frame-by-frame display of sequential color molecular frames, thereby reducing color ghosting at color edges and making the image look clearer. This enhances the visual experience while reducing user visual fatigue and is applicable to the projection display field of liquid crystal sequential displays.

[0054] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the display method described below.

[0055] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems and devices described above can be referred to the corresponding processes in the method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some communication interfaces; the indirect coupling or communication connection of devices or modules can be electrical, mechanical, or other forms.

[0056] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0057] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A display system, characterized in that, include: The driving module includes a target image extraction and labeling module, a temporal color separation module, and a temporal output module; the display module includes a backlight timing control module and a pixel circuit module. The output terminals of the target image extraction and marking module and the temporal color separation module are respectively connected to the input terminal of the temporal output module, and the output terminal of the temporal output module is respectively connected to the input terminal of the backlight timing control module and the input terminal of the pixel circuit module. The target image extraction and labeling module is used to extract target images from a color video source, wherein the target image is the first frame of the color video source with edge information; The temporal color separation module is used to perform temporal separation on the color video source to obtain multiple sets of subframes, each set of subframes including multiple monochrome subframes. The timing output module is used to output each set of subframes in the order of each set of subframes. When outputting any set of subframes, the target image and each monochrome subframe in the set of subframes are output sequentially. The target image and each monochrome subframe in the set of subframes are spatially stacked with the visual center as the projection reference. The pixel circuit module is used to display the target image and each of the monochrome subframes, and the backlight timing control module is used to adjust the backlight of the plurality of monochrome subframes and / or the target image; Adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: The original backlight starting point of the monochrome subframe is adjusted according to the preset constraint information. Original backlight intensity and the original backlight duration To obtain the new backlight starting point New backlight intensity And the new backlight duration ; The constraint information includes: ; Among them, the new backlight intensity Greater than the original backlight intensity New backlight duration Less than the original backlight duration .

2. The system according to claim 1, characterized in that, The extraction of target-like images from a color video source includes: Edge detection is performed on the first frame of the color video source to obtain the first-stage edge image; Extract the minimum sub-pixel value corresponding to each first edge pixel in the first stage edge image, and generate the second stage edge image based on the minimum sub-pixel value corresponding to each first edge pixel. Extract the minimum sub-pixel value corresponding to each second edge pixel in the second-stage edge image, and generate the third-stage edge image based on the minimum sub-pixel value corresponding to each second edge pixel. The edge image of the third stage is used as the target image of the class.

3. The system according to claim 2, characterized in that, The step of performing edge detection on the first frame image of the color video source to obtain a first-stage edge image includes: Based on a preset sharpness enhancement level, edge detection is performed on the first frame image to obtain the first stage edge image; The preset sharpness enhancement levels include any of the following: Level 1 sharpness enhancement, Level 2 sharpness enhancement, Level 3 sharpness enhancement, and no sharpness enhancement.

4. The system according to claim 2, characterized in that, Adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: If the proportion of second edge pixels in the second-stage edge image that are target monochromatic light is greater than a preset proportion, then the backlight of the target image will be adjusted to the target monochromatic light.

5. The system according to claim 1, characterized in that, The initial backlight corresponding to the target image is white light, and the backlight corresponding to each monochrome subframe is the monochrome light corresponding to each monochrome subframe.

6. The system according to claim 1, characterized in that, The step of outputting each set of subframes in the order of the subframe sets includes: According to the order of each set of subframes, each monochrome subframe in the set is output according to a preset interval time and a preset output frame rate. The preset interval time is greater than the liquid crystal response time, and the preset output frame rate is a preset multiple of the input frame rate.

7. The system according to claim 1, characterized in that, The driving module also includes a sequence storage module and a display format conversion module; The output terminals of the target image extraction and labeling module and the temporal color separation module are respectively connected to the input terminal of the sequence storage module. The output terminal of the sequence storage module is connected to the input terminal of the display format conversion module, and the output terminal of the display format conversion module is connected to the input terminal of the temporal output module. The sequence storage module is used to store each set of subframes in the order of each set of subframes, wherein when storing any set of subframes, the target image and each monochrome subframe in the set of subframes are stored sequentially. The display format conversion module is used to convert the format of each monochrome subframe in each set of subframes and the target image according to the data format corresponding to the display module.

8. A display device, characterized in that, The display device includes the display system according to any one of claims 1-7.

9. A display method, characterized in that, Applied to the display system according to any one of claims 1-7, the method comprises: The target image extraction and labeling module extracts target images from the color video source, wherein the target image is the first frame of the color video source with edge information; The temporal color separation module performs temporal separation on the color video source to obtain multiple sets of subframes, each set of subframes including multiple monochrome subframes. The timing output module outputs each set of subframes in the order of each set of subframes. When outputting any set of subframes, the target image and each monochrome subframe in the set of subframes are output sequentially. The target image and each monochrome subframe in the set of subframes are spatially stacked with the visual center as the projection reference. The pixel circuit module displays the target image and each of the monochrome subframes, and the backlight timing control module adjusts the backlight of the plurality of monochrome subframes and / or the target image; Adjusting the backlight of the plurality of monochrome subframes and / or the target-like image includes: The original backlight starting point of the monochrome subframe is adjusted according to the preset constraint information. Original backlight intensity and the original backlight duration To obtain the new backlight starting point New backlight intensity And the new backlight duration ; The constraint information includes: ; Among them, the new backlight intensity Greater than the original backlight intensity New backlight duration Less than the original backlight duration .

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