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LED display detection method, device and terminal

A technology of an LED display screen and a detection method, which is applied in the electronic field and can solve the problem that the resolution of the LED display screen cannot be obtained at the same time.

Inactive Publication Date: 2020-12-18
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this detection method cannot obtain the resolution of the LED display at the same time.

Method used

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  • LED display detection method, device and terminal
  • LED display detection method, device and terminal
  • LED display detection method, device and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] figure 1 It is a schematic flow chart of the LED display screen detection method provided by the first embodiment of the present invention. The LED display detection method can be applied to a terminal, and the terminal can be a terminal that can run application software such as a mobile phone, a tablet computer, a palmtop computer, a notebook computer, a desktop computer, a vehicle-mounted device, a navigation device, etc., and is not limited here .

[0072] Such as figure 1 As shown, the LED display screen detection method of this embodiment may include the following steps:

[0073] S101: Obtain an image of light emitted by the LED display screen collected by the image acquisition unit.

[0074] The image acquisition unit may be included in the terminal, or be an external component of the terminal. In this embodiment, the image acquisition unit is an external component of the terminal, such as figure 2 As shown, the image acquisition unit 2 and the terminal 1 ar...

Embodiment 2

[0110] Figure 5 It is a schematic flowchart of the LED display screen detection method provided by the second embodiment of the present invention. The LED display detection method can be applied to a terminal, and the terminal can be a terminal that can run application software such as a mobile phone, a tablet computer, a palmtop computer, a notebook computer, a desktop computer, a vehicle-mounted device, a navigation device, etc., and is not limited here .

[0111] Such as Figure 5 As shown, the LED display screen detection method of this embodiment may include the following steps:

[0112] S501: Acquire the image of light emitted by the LED display screen collected by the image acquisition unit.

[0113] Step S501 in this embodiment is the same as step S101 in Embodiment 1. For details, please refer to the detailed description of Step S101 in Embodiment 1, and details are not repeated here.

[0114] S502: Process the light-emitting image of the LED display to obtain a ...

Embodiment 3

[0134] Figure 6 It is a functional block diagram of the LED display screen detection device provided by the third embodiment of the present invention. The LED display detection device 10 can be applied to a terminal, and the terminal can be a terminal that can run application software such as a mobile phone, a tablet computer, a palmtop computer, a notebook computer, a desktop computer, a vehicle-mounted device, a navigation device, etc., and will not be described here. limit. The LED display screen detection device 10 may include one or more modules, the one or more modules are stored in the memory of the terminal and configured to be controlled by one or more processors (one processor in this embodiment) Execute to complete the present invention. Such as Figure 6 As shown, the LED display detection device 10 may include an acquisition module 610, a contour image determination module 620, a recording module 630, a distance determination module 640, a row failure point de...

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Abstract

The invention discloses a detection method of an LED display screen. The method is applied to a terminal, and includes: acquiring an image which is of luminescence of the LED display screen and is collected by an image collection unit; processing the image of luminescence of the LED display screen to obtain a contour image including white circles; defining a two-dimensional matrix which is identical to pixels of the contour image to record coordinates of a center point of each white circle; calculating distance D of adjacent center points in the two-dimensional matrix; according to the distance D of the adjacent center points and a smallest rectangle including all the white circles, determining that the image of luminescence of the LED display screen conforms to a rule; determining positions of fault points and the number of center points of each of m rows according to the two-dimensional matrix and the distance D of the adjacent center points; determining positions of fault points andthe number of center points of each of n columns according to the two-dimensional matrix and the distance D of the adjacent center points; and determining that resolution of the LED display screen isa maximum value in the numbers of the center points of all the m lines * a maximum value of the numbers of the center points of all the n columns. The resolution and the fault points of the LED display screen can be simultaneously determined.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a detection method, device and terminal of an LED display screen. Background technique [0002] The LED display is composed of multiple small LED modules, and each small LED module is composed of multiple light-emitting diodes arranged according to certain rules. LED display is used to display various information such as text, image, video, video signal, etc. It has the characteristics of high brightness, clear picture, long service life and convenient maintenance. At present, the LED display screens on the market cannot provide resolution information, which brings great trouble to the assembly and application of enterprises. At the same time, in the development and production process of the LED display, due to the manufacturing process and components, some light-emitting diodes in the LED display will fail and cannot be lit. The current LED display detection method mainly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/70G01M11/02
CPCG01M11/00G06T7/0002G06T7/70
Inventor 陈晓春孙睿田华
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN