Optical module pixel defect detection method, device and equipment
A pixel defect and optical module technology, applied in the direction of measuring devices, optics, nonlinear optics, etc., can solve the problems of pixel defect, optical module can not work normally, etc.
Active Publication Date: 2020-10-09
GOERTEK OPTICAL TECH CO LTD
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[0003] However, due to the limitation of the production process, there may be pixels that cannot work normally in some optical modules. These pixels that cannot work normally are called pixel defects.
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[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] The core of the embodiments of the present invention is to photograph the image formed by the optical module, and determine the pixel characteristics of the optical module according to the pixel characteristics of the image. Wherein, the pixel of the optical module is the smallest display unit on the display screen in the optical module, and its size is det...
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The present invention provides an optical module pixel defect detection method, device and equipment, wherein the method includes: grayscale the image formed by the test binary image through the optical module in a darkroom environment, so as to obtain the first grayscale Figure; from the first grayscale image, determine the first grayscale region and the second grayscale region corresponding to the two grayscale levels in the test binary image; from the first grayscale region and In the second grayscale area, pixel points that do not match the grayscale features of the respective grayscale areas are respectively determined as pixel defect points; according to the pixel defect points, pixel defects of the optical module are determined. The technical solution provided by the invention can accurately detect the pixel defect of the optical module, and is beneficial to optimize the processing technology of the optical module.
Description
technical field [0001] The invention relates to the field of assembly technology, in particular to a method, device and equipment for detecting pixel defects of an optical module. Background technique [0002] Nowadays, there are more and more optical modules with independent functions in the market to meet the diverse market demands. These optical modules can be embedded into other devices to play their functions, such as camera modules, projection modules, LED (Light Emitting Diode, light-emitting diode) optical modules, and VR (Virtual Reality, virtual reality) / AR (Augmented Reality, augmented reality) optical modules, etc. [0003] However, due to the limitation of the production process, there may be pixels that cannot work normally in some optical modules, and these pixels that cannot work normally are called pixel defects. In order to further optimize the performance of the optical module, it is necessary to control the area size of the pixel defect in the optical m...
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IPC IPC(8): H04N17/00
CPCH04N17/00G09G5/10G09G2330/10H04N9/3194G06T7/0004G06T2207/30168G09G2320/0693G09G3/2007G02F1/1309G06T7/136G06T7/62G06T7/11G06T7/66G06T7/13G01N21/8851
Inventor 韩欣欣赵志勇董南京孙德波
Owner GOERTEK OPTICAL TECH CO LTD