WO2022205967A1 - Led显示屏多点交织动态扫描方法、系统和存储介质 - Google Patents

Led显示屏多点交织动态扫描方法、系统和存储介质 Download PDF

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WO2022205967A1
WO2022205967A1 PCT/CN2021/133225 CN2021133225W WO2022205967A1 WO 2022205967 A1 WO2022205967 A1 WO 2022205967A1 CN 2021133225 W CN2021133225 W CN 2021133225W WO 2022205967 A1 WO2022205967 A1 WO 2022205967A1
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led display
display screen
dynamic scanning
scanning
scanning method
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PCT/CN2021/133225
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English (en)
French (fr)
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吴涵渠
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深圳市奥拓电子股份有限公司
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Publication of WO2022205967A1 publication Critical patent/WO2022205967A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • the application belongs to the technical field of LED display, and in particular relates to a multi-point interleaving dynamic scanning method, system and storage medium of an LED display screen.
  • the common solution is to increase the frequency of the scanning line field, which can improve or even eliminate the flickering feeling viewed by the human eye, but it will increase the manufacturing difficulty and product cost.
  • the purpose of the present application is to provide a multi-dot interleaving dynamic scanning method, system and storage medium for an LED display screen to solve the above technical problems.
  • the present application provides a multi-point interleaving dynamic scanning method for an LED display screen, including:
  • the relationship between M and N is:
  • M N ⁇ N; M pixel points in the small unit are arranged in an array.
  • the LED display screen includes a Mini LED or Micro LED display screen.
  • the dynamic scanning step of performing two levels of nested loops includes:
  • the first layer of circulation, scanning and lighting between small cells and small cells The first layer of circulation, scanning and lighting between small cells and small cells;
  • the second layer of circulation scans and lights other pixels in the small unit.
  • the second level of loops is nested within the first level of loops.
  • the scanning lighting mode of the first layer cycle includes:
  • Interlaced and/or progressive scan illuminates.
  • the first layer is lit by cyclic scanning, only one pixel is lit in each small unit in the LED display screen.
  • the manner of scanning and lighting the plurality of pixels in the small unit includes a zigzag, clockwise and/or counterclockwise manner.
  • the present application also provides a multi-point interleaving dynamic scanning system for an LED display screen.
  • the LED display screen multi-point interleaving dynamic scanning system includes: a multi-point interleaving dynamic scanning method for an LED display screen according to any of the above embodiments.
  • the present application also provides a storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the above-mentioned multi-dot interleaving dynamic scanning methods for an LED display screen.
  • the present application divides a plurality of pixel points into a small array unit, and the dynamic scanning is divided into two layers of nested loops: firstly scan the small cells line by line or interlaced in a loop, and then scan the pixels inside the small cells sequentially.
  • the uniformity of the full-screen brightness distribution is greatly improved within one scan line time, thereby improving the visual effect of the LED display, reducing or even eliminating the time when the human eye watches the LED display. of flickering.
  • FIG. 1 is a flowchart of a multi-point interleaving dynamic scanning method for an LED display screen according to an embodiment of the application
  • FIG. 2 is a flowchart of a multi-point interleaving dynamic scanning method for an LED display screen according to another embodiment of the present application
  • FIG. 3 is a schematic diagram of progressive scanning in a first layer loop according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of interlaced scanning in a first layer cycle according to an embodiment of the present application.
  • FIG. 1 is a flowchart of a multi-point interleaving dynamic scanning method for an LED display screen according to an embodiment of the application; the LED display screen multi-point interleaving dynamic scanning method includes:
  • Step S110 Divide the LED display screen into N ⁇ N small units with M pixels; specifically, it can be divided into 2 ⁇ 2 small units with 4 adjacent pixels; the LED display screen includes but is not limited to Mini LED or Micro LED display.
  • Step S120 performing a dynamic scan of two levels of nested loops.
  • FIG. 2 is a flowchart of a multi-point interleaving dynamic scanning method for an LED display screen according to another embodiment of the present application; that is, step S120 further includes:
  • step S121 the first layer is cycled, and the small cells are scanned and illuminated between the small cells; specifically, the scanning and lighting mode may be, but not limited to, progressive and/or interlaced scanning.
  • Step S122 the second layer loops, and scans and lights up other pixels in the small unit.
  • FIG. 3 is a schematic diagram of line-by-line scanning in the first layer cycle according to an embodiment of the application; And so on for the small cells of the N array.
  • each row 11 includes several small units 12 , as shown in FIG. 3 when performing progressive scanning. Each time the first layer of cyclic scanning is performed, only one pixel of the small cells 12 in each row 11 lights up.
  • FIG. 4 is a schematic diagram of interlaced scanning in the first layer cycle according to an embodiment of the present application.
  • FIG. 3 is an example of a small unit with 4 pixels in a 2 ⁇ 2 array, and the other N ⁇ N Small cells of the array and so on.
  • each row 21 includes several small units 22 , as shown in FIG. 4 when performing progressive scanning. Each time the first layer of cyclic scanning is performed, only one of the small cells 22 in each row 21 lights up.
  • the second layer is nested. Cyclic scan lights up.
  • the lighting sequence of the four pixels in the small unit 22 may be, but not limited to:
  • the advantage of this scanning method is that, without reducing the number of scanning lines, that is, without increasing the number of driver chips, without increasing the cost and without increasing the difficulty of PCB wiring, the spatial brightness uniformity of the LED display within a single scanning line can be improved. sex. Taking 16 line scans as an example, the traditional line scan method uses 1 column ⁇ 16 rows of scanning units. In the scanning method of this application, in an LED display screen with 2 ⁇ 2 pixels as small units, 2 columns ⁇ 8 Behavioral scanning unit to obtain approximately 8 line scans of spatial brightness uniformity.
  • a multi-point interleaving dynamic scanning system for an LED display screen is also provided, and the LED display screen multi-point interleaving dynamic scanning system is used to implement the LED display screen multi-point interleaving dynamic scanning method described in any embodiment of the present application.
  • Embodiments of the present application further provide an electronic device, including a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions that can be executed by the processor, and when called by the processor and When executed, the processor can execute instructions to prompt the processor to: implement the multi-dot interleaving dynamic scanning method for an LED display screen described in any embodiment of the present application.
  • An embodiment of the present application further provides a storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the multi-dot interleaving dynamic scanning method for an LED display screen described in any of the foregoing embodiments.
  • the integrated components/modules/units of the system/computer device if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the present application realizes all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented.
  • the computer program includes computer program code
  • the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like.
  • the computer-readable storage medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) ), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electric carrier signal telecommunication signal and software distribution medium, etc.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请涉及一种LED显示屏多点交织动态扫描方法、系统和存储介质，LED显示屏多点交织动态扫描方法包括：将LED显示屏划分为M个像素点的N×N小单元；执行两层嵌套循环的动态扫描。其中执行两层嵌套循环的动态扫描步骤中具体还包括：第一层循环，对小单元和小单元之间进行扫描点亮，扫描点亮方式包括逐行和/或隔行扫描；第二层循环，对小单元内其他像素点进行扫描点亮。本申请在不减少扫描行数、不增加驱动芯片个数，不增加成本和PCB布线难度的情况下，提升单扫描行时间内LED显示屏的空间亮度均匀性。

Description

LED显示屏多点交织动态扫描方法、系统和存储介质
本申请要求于2021年04月02日在中国专利局提交的、申请号为202110358536.0的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于LED显示技术领域，具体涉及一种LED显示屏多点交织动态扫描方法、系统和存储介质。
 背景技术
在LED显示屏中，由于灯板成本及PCB布线难度，大多数采用矩阵式逐行动态扫描方式，分区间循环分时依次逐行扫描点亮各像素行，从而完成全屏点亮。
随着LED显示屏间距越做越小，逐行扫描的行数越来越多，在一个扫描时间内，全屏的亮度空间分布不均匀性也越来越高。这就导致了人眼观看LED显示屏会有较强烈的闪烁感，摄像机对LED显示屏进行拍照时，也会有暗区。目前普遍的解决方法是通过提高扫描行场的频率，可以改善甚至消除人眼观看的闪烁感，但会提高制造难度以及产品成本。
 技术问题
本申请的目的在于提供一种LED显示屏多点交织动态扫描方法、系统和存储介质，以解决上述技术问题。
 技术解决方案
为了实现上述目的，本申请采用如下技术方案：
本申请提供一种LED显示屏多点交织动态扫描方法，包括：
将LED显示屏划分为M个像素点的N×N小单元；
执行两层嵌套循环的动态扫描。
优选地，所述将LED显示屏划分为M个像素点的N×N小单元步骤中，M与N的关系是：
M=N×N；所述小单元内M个像素点阵列排布。
优选地，所述LED显示屏包括Mini LED或Micro LED显示屏。
优选地，所述执行两层嵌套循环的动态扫描步骤包括：
第一层循环，对小单元和小单元之间进行扫描点亮；
第二层循环，对小单元内其他像素点进行扫描点亮。
优选地，所述第二层循环嵌套于所述第一层循环中。
优选地，所述第一层循环的扫描点亮方式包括：
隔行和/或逐行扫描点亮。
优选地，所述第一层循环扫描点亮时，所述LED显示屏中每个小单元内只点亮一个像素点。
优选地，所述第二层循环步骤中，对小单元内多个像素点进行扫描点亮的方式包括Z字形、顺时针和/或逆时针的方式。
本申请还提供一种LED显示屏多点交织动态扫描系统，所述LED显示屏多点交织动态扫描系统，包括：上述任一项实施例中的一种LED显示屏多点交织动态扫描方法。
本申请还提供一种存储介质，其上存储有计算机程序，其中所述计算机程序在由处理器执行时实现上述任一项中的一种LED显示屏多点交织动态扫描方法。
由上可知，本申请将多个像素点分为一个阵列小单元，动态扫描分为两层嵌套循环：先循环逐行或隔行扫描小单元，再依次扫描小单元内部像素点。在不增加驱动电路的复杂程度前提下，在一个扫描行时间内，极大的改善了全屏亮度分布的均匀性，从而提高了LED显示屏的视觉效果，减少甚至消除人眼观看LED显示屏时的闪烁感。
 附图说明
图1为本申请一实施例的一种LED显示屏多点交织动态扫描方法的流程图；
图2为本申请又一实施例的一种LED显示屏多点交织动态扫描方法的流程图；
图3为本申请一实施例的第一层循环中逐行扫描的示意图；
图4为本申请一实施例的第一层循环中隔行扫描的示意图。
 本发明的实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行详细描述。需要说明的是，在不冲突的情况下，本申请的实施方式及实施方式中的特征可以相互组合。除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在限制本申请。
请参阅图1，图1为本申请一实施例的一种LED显示屏多点交织动态扫描方法的流程图；所述LED显示屏多点交织动态扫描方法，包括：
步骤S110、将LED显示屏划分为M个像素点的N×N小单元；具体而言，可分为相邻4个像素点的2×2小单元；LED显示屏包括但不局限于Mini LED或Micro LED显示屏。
步骤S120、执行两层嵌套循环的动态扫描。
在一些可选的实施例中，M、N之间的关系是M=N×N，组成小单元的像素点呈阵列排布。
请参阅图2，图2为本申请又一实施例的一种LED显示屏多点交织动态扫描方法的流程图；即步骤S120中还包括：
步骤S121、第一层循环，对小单元和小单元之间进行扫描点亮；具体而言，扫描点亮方式可以但不局限于逐行和/或隔行扫描。
步骤S122、第二层循环，对小单元内其他像素点进行扫描点亮。
请参阅图3，图3为本申请一实施例的第一层循环中逐行扫描的示意图；具体而言，图3是以4个像素点2×2阵列的小单元为例，其他N×N阵列的小单元以此类推。
将LED显示屏10划分为以4个像素点2×2小单元12，则每行11包括若干个小单元12，执行逐行扫描时则如图3所示。每次进行第一层循环扫描时，每行11中若干个小单元12只亮起其中一个像素点。
请参阅图4，图4为本申请一实施例的第一层循环中隔行扫描的示意图；具体而言，图3是以4个像素点2×2阵列的小单元为例，其他N×N阵列的小单元以此类推。
将LED显示屏20划分为以4个像素点2×2小单元22，则每行21包括若干个小单元22，执行逐行扫描时则如图4所示。每次进行第一层循环扫描时，每行21中若干个小单元22只亮起其中一个像素点。
在一些可选的实施例中，每完成一行小单元21对应像素点的第一层循环扫描点亮后，在进入下一行小单元的第一层循环扫描点亮前，嵌套进行第二层循环扫描点亮。本申请申请实施例在进行第二层循环扫描点亮步骤中，对小单元22内四个像素点的点亮顺序可以但不局限于：
Z字形，在图4中顺序是A→B→C→D；
X字形，在图4中顺序是A→D→B→C;
顺时针，在图4中顺序是A→B→D→C；
逆时针，在图4中顺序是A→C→D→B。
这种扫描方式的优点是，在不减少扫描行数，即不增加驱动芯片个数、不增加成本和不增加PCB板布线难度的情况下，提升单扫描行时间内LED显示屏的空间亮度均匀性。以16行扫为例，传统行扫描方式，以1列×16行为扫描单元，本申请的扫描方式，在一个以2×2像素点为小单元的LED显示屏中，则以2列×8行为扫描单元，得到近似8行扫的空间亮度均匀性。
还提供一种LED显示屏多点交织动态扫描系统，所述LED显示屏多点交织动态扫描系统用以实施本申请申请任一实施例所述的LED显示屏多点交织动态扫描法。
本申请申请实施例还提供一种电子设备，包括处理器和机器可读存储介质，所述机器可读存储介质存储有能够被所述处理器执行的机器可执行指令，在被处理器调用和执行时，所述处理器可执行指令促使所述处理器：实现本申请申请任一实施例所述的LED显示屏多点交织动态扫描方法。
本申请一实施例还提供一种存储介质，其上存储有计算机程序，其中所述计算机程序在由处理器执行时实现上述任一实施例所述的LED显示屏多点交织动态扫描方法。
所述系统/计算机装置集成的部件/模块/单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实现上述实施方式方法中的全部或部分流程，也可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储在一个计算机可读存储介质中，所述计算机程序在被处理器执行时，可实现上述各个方法实施方式的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读存储介质可以包括：能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器 (ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、电载波信号、电信信号以及软件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根据立法和专利实践，计算机可读介质不包括电载波信号和电信信号。
本申请未尽事宜为公知技术。
在本申请所提供的几个具体实施方式中，应该理解到，所揭露的系统和方法，可以通过其它的方式实现。例如，以上所描述的系统实施方式仅仅是示意性的，例如，所述部件的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
对于本领域技术人员而言，显然本申请实施例不限于上述示范性实施例的细节，而且在不背离本申请实施例的精神或基本特征的情况下，能够以其他的具体形式实现本申请实施例。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本申请实施例的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本申请实施例内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。此外，显然“包括”一词不排除其他单元或步骤，单数不排除复数。第一，第二等词语用来表示名称，而并不表示任何特定的顺序。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种LED显示屏多点交织动态扫描方法，其特征在于，包括：
    将LED显示屏划分为M个像素点的N×N小单元；
    执行两层嵌套循环的动态扫描。
  2. 根据权利要求1所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述将LED显示屏划分为M个像素点的N×N小单元步骤中，M与N的关系是：
    M=N×N；所述小单元内M个像素点阵列排布。
  3. 根据权利要求1所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述LED显示屏包括Mini LED或Micro LED显示屏。
  4. 根据权利要求2所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述执行两层嵌套循环的动态扫描步骤包括：
    第一层循环，对小单元和小单元之间进行扫描点亮；
    第二层循环，对小单元内其他像素点进行扫描点亮。
  5. 根据权利要求4所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述第二层循环嵌套于所述第一层循环中。
  6. 根据权利要求5所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述第一层循环的扫描点亮方式包括：
    隔行和/或逐行扫描点亮。
  7. 根据权利要求6所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述第一层循环扫描点亮时，所述LED显示屏中每个小单元内只点亮一个像素点。
  8. 根据权利要求7所述的一种LED显示屏多点交织动态扫描方法，其特征在于，所述第二层循环步骤中，对小单元内多个像素点进行扫描点亮的方式包括Z字形、顺时针和/或逆时针的方式。
  9. 一种LED显示屏多点交织动态扫描系统，其特征在于，所述LED显示屏多点交织动态扫描系统，包括：权利要求1-8所述的一种LED显示屏多点交织动态扫描方法。
  10. 一种存储介质，其特征在于，其上存储有计算机程序，其中所述计算机程序在由处理器执行时实现权利要求1-8所述的一种LED显示屏多点交织动态扫描方法。
PCT/CN2021/133225 2021-04-02 2021-11-25 Led显示屏多点交织动态扫描方法、系统和存储介质 WO2022205967A1 (zh)

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Publication number Priority date Publication date Assignee Title
US5992962A (en) * 1994-12-22 1999-11-30 Hewlett-Packard Company Print masks for inkjet printers
CN101641216A (zh) * 2007-03-22 2010-02-03 武藤工业株式会社 打印装置及打印方法
CN102241189A (zh) * 2010-04-23 2011-11-16 精工爱普生株式会社 印刷装置及印刷方法
CN102825908A (zh) * 2011-06-17 2012-12-19 精工爱普生株式会社 图像记录装置、图像记录方法
CN104275935A (zh) * 2013-07-12 2015-01-14 精工爱普生株式会社 点记录装置和点记录方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992962A (en) * 1994-12-22 1999-11-30 Hewlett-Packard Company Print masks for inkjet printers
CN101641216A (zh) * 2007-03-22 2010-02-03 武藤工业株式会社 打印装置及打印方法
CN102241189A (zh) * 2010-04-23 2011-11-16 精工爱普生株式会社 印刷装置及印刷方法
CN102825908A (zh) * 2011-06-17 2012-12-19 精工爱普生株式会社 图像记录装置、图像记录方法
CN104275935A (zh) * 2013-07-12 2015-01-14 精工爱普生株式会社 点记录装置和点记录方法

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