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A method, device and system for adjusting brightness uniformity of a surface light source

A technology for brightness uniformity and adjustment devices, applied to static indicators, instruments, etc., can solve problems such as low efficiency, inconvenient operation, large errors, etc., and achieve the effect of reducing errors and convenient operation

Active Publication Date: 2019-06-21
BEIJING LUSTER LIGHTTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned method by manual operation is inefficient, inconvenient to operate, and has large errors

Method used

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  • A method, device and system for adjusting brightness uniformity of a surface light source
  • A method, device and system for adjusting brightness uniformity of a surface light source
  • A method, device and system for adjusting brightness uniformity of a surface light source

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It is a flow chart of a method for adjusting the brightness uniformity of a surface light source provided in Embodiment 1 of the present invention. The method is executed by a device for adjusting the brightness uniformity of a surface light source, and the device is executed by software and / or hardware. The device Generally configured in the terminal, such as figure 1 As shown, the technical solution provided by this embodiment is specifically as follows:

[0029] S110: Acquire an image of the surface light source to be measured, and segment the image to form at least one image segmentation block.

[0030] In this embodiment, the surface light source to be tested is composed of at least one surface light source unit, and each surface light source unit is independent of each other and can be controlled independently. Optionally, the brightness of the surface light source unit can be controlled by controlling the current input to the surface light source unit....

Embodiment 2

[0043] figure 2 It is a flow chart of a method for adjusting the brightness uniformity of a surface light source provided in Embodiment 2 of the present invention. On the basis of the above embodiment, optionally, in the adjustment of the brightness of the surface light source unit corresponding to the target image segmentation block After that, it also includes: detecting whether the gray value of each of the image segmentation blocks is within the standard gray range;

[0044] If yes, end the process; if no, return to the operation of acquiring the image of the surface light source to be tested.

[0045] Thus, by returning to the operation of acquiring the image of the surface light source to be measured, the uniformity of the brightness of the surface light source is improved.

[0046] Further, optionally, the acquiring the gray value of the image segmentation block includes:

[0047] Obtain the gray value of at least one pixel in the image segmentation block;

[0048] ...

Embodiment 3

[0077] image 3 It is a flow chart of a method for adjusting brightness uniformity of a surface light source provided in Embodiment 3 of the present invention. On the basis of the above embodiment, optionally, the surface light source to be tested includes 4 surface light source units.

[0078] Such as image 3 As shown, the technical solution provided by this embodiment is specifically as follows:

[0079] S310: Acquire an image of the surface light source to be measured, and segment the image to form 4 image segmentation blocks.

[0080] S320: Obtain the gray value of 25 pixels in each image segmentation block.

[0081]In this embodiment, Table 1 is the grayscale information table of the pixels in the current image segmentation blocks. As shown in Table 1, the number of pixels along the X-axis of each image segmentation block is 5, and the number of pixels along the Y-axis is 5. The number of points is also 5, that is, there are 25 pixel points in each image segmentation ...

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Abstract

The embodiment of the invention discloses an area source brightness uniformity adjusting method, device and system, and the method comprises the steps: obtaining an image of a to-be-tested area source, segmenting the image, and forming at least one image segmented block, wherein the to-be-tested area source consists of at least one area source unit, and the image segmented block is corresponding to the area source unit; obtaining the gray value of the image segmented block; enabling the gray value to be put outside a standard gray value range, determining the image segmented block with the maximum difference between the gray value and a preset standard gray value as the target image segmented block, and adjusting the brightness of the area source unit corresponding to the target image segmented block. According to the embodiment of the invention, the method can automatically adjust the brightness uniformity of the area source, is convenient to operate, and reduces the errors.

Description

technical field [0001] The invention relates to the technical field of brightness uniformity analysis, in particular to a method, device and system for adjusting the brightness uniformity of a surface light source. Background technique [0002] In recent years, with the development of science and technology, surface light sources have been applied to various fields, such as lighting, display and other technical fields, especially in the display field. The uniformity of the brightness of surface light sources is a key indicator of the quality of display equipment. received more and more attention. [0003] At present, the brightness uniformity of the surface light source is done manually. That is, for each surface light source, use a luminance meter to measure the brightness value at multiple positions on the surface light source to determine whether the brightness values ​​at multiple positions of the surface light source are within the specified reference range, and then j...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/342
Inventor 杨艺解三霞周钟海
Owner BEIJING LUSTER LIGHTTECH