Method, device and system for playing 3D (three-dimensional) picture on LED (light emitting diode) display screen

Abstract

The invention belongs to the technical field of video processing, and particularly relates to a method, a device and a system for playing 3D (three-dimensional) pictures on an LED (light-emitting diode) display screen. The method for playing the 3D picture on the LED display screen comprises the following steps: inputting a video source needing to be played; according to the parameters of the LED display screen, when the video with the X frame rate is played, the number of subframes of each frame of picture is set to be y; setting the front y / 2 subframes of the one frame of picture as a picture for playing a left eye video source, and setting the rear y / 2 subframes of the one frame of picture as a picture for playing a right eye video source; integrating the picture of the left eye video source and the picture of the right eye video source into a mixed video source picture; and playing the mixed video source picture. According to the invention, the playing frame rate of the video source is improved, the hardware requirement on the display screen is greatly reduced, and the low-frame-rate operation stability and economical efficiency of the whole set of system can be improved without increasing the cost of related equipment for the 3D function.

Description

Technical Field

[0001] The present invention belongs to the technical field of video processing, and in particular relates to a method, device and system for playing 3D images on an LED display screen. Background Art

[0002] Currently, LED display screens with active shutter 3D glasses have become one of the mainstream applications of LED display screens. Using the video processor to play two 60-frame video sources in turn in the manner of 1 frame for the left eye and 1 frame for the right eye, combined with the on / off function of 3D glasses, viewers can enjoy 3D movies.

[0003] However, this method has a rigid threshold indicator. The display frame rate must be more than twice the frame rate of the video source. For example, to play a 60-frame video source, the screen needs to run 120 frames, so that the 60-frame left eye and 60-frame right eye images can be played. This will undoubtedly raise the design threshold of LED display screens, and have higher requirements for display driver ICs, data processing, and transmission rates, which will increase production costs and push up product prices. Summary of the invention

[0004] The purpose of the present invention is to provide a method, device and system for playing 3D images on an LED display screen to solve the above technical problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides a method for playing 3D images on an LED display screen, comprising:

[0007] Enter the video source to be played;

[0008] According to the LED display parameters, when playing a video with an X frame rate, the number of subframes per frame is set to y;

[0009] The first y / 2 subframes of the one frame are set as the picture for playing the left-eye video source, and the last y / 2 subframes of the one frame are set as the picture for playing the right-eye video source;

[0010] Integrate the picture of the left-eye video source and the picture of the right-eye video source into a mixed video source picture;

[0011] Play the mixed video source picture.

[0012] In one of the embodiments, pixels in the Nth row and the N+1th row in the LED display screen are arranged in a staggered manner.

[0013] In one of the embodiments, the LED display screen scans odd-numbered rows first and then even-numbered rows, and the display of a sub-frame image ends after all rows are scanned.

[0014] In one of the embodiments, the playback frame rate in the parameters of the LED display screen is greater than or equal to the video source frame rate.

[0015] In a second aspect, the present invention further provides a device for playing 3D images on an LED display screen, the device comprising:

[0016] Video source module, used to process input video source;

[0017] The receiving module is used to receive the processed mixed video source and convert it into a video signal for transmission.

[0018] In one of the embodiments, the video source module further includes:

[0019] A video source processing unit, used to set the playback frame rate and the number of sub-frames;

[0020] The controller unit is used to divide the picture of the input video source into the picture of the left-eye video source and the picture of the right-eye video source.

[0021] In a third aspect, the present invention further provides a system for playing 3D images on an LED display screen, the system being used to implement the method for playing 3D images on an LED display screen described in the first aspect, the system comprising an LED display screen and the device for playing 3D images on an LED display screen described in the second aspect.

[0022] In one of the embodiments, pixels in the Nth row and the N+1th row in the LED display screen are arranged in a staggered manner.

[0023] In one embodiment, the LED display screen scans in a sequence of first scanning odd-numbered rows and then scanning even-numbered rows.

[0024] In a fourth aspect, the present invention further provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for playing 3D images on an LED display screen as described in the first aspect.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: Different from the prior art, the present invention splices 1 frame of the left eye and 1 frame of the right eye into 1 frame of the picture. When playing the first half of the 1 frame of the picture, the 3D glasses open the left lens and close the right lens; when playing the second half of the 1 frame of the picture, the 3D glasses open the right lens and close the left lens. This cycle is repeated to achieve a 3D viewing effect. The playback frame rate of the video source is increased, and the hardware requirements for the display screen are greatly reduced. There is no need to increase the cost of related equipment for the 3D function, which can improve the stability and economy of the low frame rate operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a flow chart of a method for playing 3D images on an LED display screen according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic structural diagram of a device for playing 3D images on an LED display screen according to an embodiment of the present invention;

[0028] Figure 3 A schematic structural diagram of an arrangement of pixels of an LED display screen in a system for playing 3D images on an LED display screen according to an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to be able to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figure 1 , Figure 1 The flowchart of a method for playing 3D images on an LED display screen according to an embodiment of the present invention. The method for playing 3D images on an LED display screen comprises:

[0032] Step S110, input the video source to be played;

[0033] Step S120, according to the LED display screen parameters, when playing a video with an X frame rate, the number of subframes per frame is set to y;

[0034] Step S130, setting the first y / 2 subframes of the one frame as the picture for playing the left-eye video source, and setting the last y / 2 subframes of the one frame as the picture for playing the right-eye video source;

[0035] Step S140, integrating the left-eye video source picture and the right-eye video source picture into a mixed video source picture;

[0036] Step S140, playing the mixed video source picture.

[0037] In one embodiment, the pixels of the Nth row and the N+1th row in the LED display are arranged in a staggered manner, for example, the pixels of the 1st row and the 2nd row are arranged in a staggered manner. The scanning order of the LED display is to scan the odd rows first and then the even rows, and the scanning order of the row control IC is modified by design, specifically, the odd rows (1st, 3rd, 5th, 7th, 9th...) are scanned first, and then the even rows (2nd, 4th, 6th, 8th, 10th...) are scanned, and the display of a subframe screen ends after all rows are scanned. The playback frame rate in the parameters of the LED display is greater than or equal to the frame rate of the video source.

[0038] See also Figure 2 , Figure 2 The structure diagram of a device for playing 3D images on an LED display screen according to an embodiment of the present invention is shown in FIG. A device for playing 3D images on an LED display screen 210 comprises: a video source module 211 for processing an input video source; a receiving module 220 for receiving a processed mixed video source and converting it into a video signal for transmission.

[0039] Specifically, the video source module 210 further includes: a video source processing unit 211 for setting a playback frame rate and a number of subframes; and a controller unit 212 for dividing the picture of the input video source into a picture of a left-eye video source and a picture of a right-eye video source.

[0040] In a third aspect, the present invention further provides a system for playing 3D images on an LED display screen, the system being used to implement the method for playing 3D images on an LED display screen as described in the first aspect, the system comprising an LED display screen and the device for playing 3D images on an LED display screen as described in the second aspect. Figure 3 , the pixels of the Nth row and the N+1th row in the LED display screen are arranged in a staggered manner, and the scanning order of the LED display screen is to scan the odd rows first and then the even rows.

[0041] Specifically, the display screen parameters are set to the scan number a, and the frame rate that can be played is ≥ the frame rate of the video source N. Then when playing the 3D video source, first transfer the left and right eye video source data to the video processor. According to the parameters of the LED display screen, when playing the video with an X frame rate, the number of subframes per frame is set to y, so within the time of 1 / Xy (ideal value), each data partition of the LED display screen can complete the scanning work from the 1st row to the nth row. The controller uses the first y / 2 subframes of a frame to play the left eye video source; the following y / 2 subframes are used to play the right eye video source; after integrating the video source, a 60Hz mixed video source will be obtained and transmitted to the receiving card, which forwards the video signal to the light board to complete the entire playback process. In this way, a total of 60 frames are played within 1 second, and the time for each frame is 1 / 60 seconds, of which 1 / 120 seconds is used to play the left eye video source and 1 / 120 seconds is used to play the right eye video source.

[0042] Then, within 1 second, a total of 60 frames of left-eye video source images and 60 frames of right-eye video source images are played. Conventional 3D display LED screens require 120 frames to play 60 frames of left-eye video source and 60 frames of right-eye video source, and the same refresh rate is achieved.

[0043] In a fourth aspect, the present invention further provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for playing 3D images on an LED display screen as described in the first aspect.

[0044] Figure 4 is a schematic diagram of the hardware structure of the electronic device provided in the embodiment of the present application, such as Figure 4 As shown, the electronic device 500 includes:

[0045] One or more processors 401 and memory 402, Figure 4 A processor is taken as an example.

[0046] The processor 401 and the memory 402 may be connected via a bus or other means. Figure 4 The example of connecting through bus is taken in the following.

[0047] The memory 402 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to a method for multiplying the frame rate of an LED video controller in an embodiment of the present application. The processor 401 executes various functional applications and data processing of the electronic device by running the non-volatile software programs, instructions and modules stored in the memory 402, that is, a method for playing 3D images on an LED display screen in the above method embodiment is implemented.

[0048] The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created according to a device for playing 3D images on an LED display screen, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk memory, a flash memory device, or other non-volatile solid-state memory devices. In some embodiments, the memory 402 may optionally include a memory remotely arranged relative to the memory 401, and these memories may be connected to the device for playing 3D images on an LED display screen via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0049] An embodiment of the present application also provides a non-volatile computer-readable storage medium, which stores computer-executable instructions. When one or more processors execute the computer-executable instructions, the one or more processors can execute the method for playing 3D images on an LED display screen in any of the above method embodiments.

[0050] If the components / modules / units integrated in the system / computer device are implemented in the form of 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 present invention implements all or part of the processes in the above-mentioned implementation method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method implementations when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media does not include electrical carrier signals and telecommunication signals.

[0051] Matters not covered by the present invention are known technologies.

[0052] In the several specific embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system implementation described above is only illustrative, for example, the division of the components is only a logical function division, and there may be other division methods in actual implementation.

[0053] In addition, each functional module / component in each embodiment of the present invention may be integrated into the same processing module / component, or each module / component may exist physically separately, or two or more modules / components may be integrated into the same module / component. The above-mentioned integrated modules / components may be implemented in the form of hardware or in the form of hardware plus software functional modules / components.

[0054] It is obvious to those skilled in the art that the embodiments of the present invention are not limited to the details of the above exemplary embodiments, and that the embodiments of the present invention can be implemented in other specific forms without departing from the spirit or basic features of the embodiments of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the embodiments of the present invention is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the embodiments of the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units, modules or devices stated in the system, device or terminal claims can also be implemented by the same unit, module or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0055] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for playing 3D images on an LED display screen, characterized in that: include: Enter the video source to be played; According to the parameters of the LED display screen, when playing a video with an X frame rate, the number of subframes per frame is set to y, and the pixels of the Nth row and the N+1th row in the LED display screen are arranged in a staggered manner, and the scanning order of the LED display screen is to scan the odd rows first and then the even rows; The first y / 2 subframes of the one frame are set as the picture for playing the left-eye video source, and the last y / 2 subframes of the one frame are set as the picture for playing the right-eye video source; Integrate the picture of the left-eye video source and the picture of the right-eye video source into a mixed video source picture; Play the mixed video source picture.

2. The method for playing 3D images on an LED display screen according to claim 1, characterized in that: The playback frame rate in the parameters of the LED display screen is greater than or equal to the video source frame rate.

3. A device for playing 3D images on an LED display screen, characterized in that: The device comprises: Video source module, used to process input video source; The receiving module is used to receive the processed mixed video source and convert it into a video signal for transmission.

4. The device for playing 3D images on an LED display screen according to claim 3, characterized in that: The video source module also includes: A video source processing unit, used to set the playback frame rate and the number of sub-frames; The controller unit is used to divide the picture of the input video source into the picture of the left-eye video source and the picture of the right-eye video source.

5. A system for playing 3D images on an LED display screen, characterized in that: The system is used to implement the method for playing 3D images on an LED display screen as described in any one of claims 1-2, and the system includes an LED display screen and a device for playing 3D images on an LED display screen as described in any one of claims 3-4.

6. The LED display screen 3D image playing system according to claim 5, characterized in that: The pixels in the Nth row and the N+1th row in the LED display screen are arranged in a staggered manner.

7. The LED display screen 3D image playing system according to claim 6, characterized in that: The LED display screen scans in the following order: first scan odd-numbered rows, then scan even-numbered rows.

8. A storage medium, characterized in that: A computer program is stored thereon, wherein the computer program, when executed by a processor, implements the method for playing 3D images on an LED display screen as described in any one of claims 1-2.

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