A color electrowetting display unit defect identification method and device thereof
An electrowetting display and defect identification technology, applied in image analysis, image enhancement, instrumentation, etc., can solve the problems of poor consistency, low efficiency, and long display unit defect time, and achieve the effect of improving product quality and yield
Active Publication Date: 2022-05-17
FUZHOU UNIV
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[0005] In view of this, the purpose of the present invention is to propose a color electrowetting display unit defect identification method and its device, aiming to solve the problems of long time, low efficiency and easy detection results of manual detection and classification of electrowetting display unit defects. Influenced by subjective factors and poor consistency
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0031] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...
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The invention relates to a defect identification method and device for a color electrowetting display unit. Firstly, the histogram equalization and geometric correction are performed on the image collected by the microscope to complete the preprocessing of the image of the electrowetting display unit; and then the preprocessed image is processed. The improved K-means clustering algorithm is used to segment and dynamically judge and record the color features of the three primary colors; then, for the binary image obtained after segmentation, its geometric features are extracted as the main features of the classification, and its texture features are extracted as the auxiliary correction features of the classification , using the learning vector quantization neural network to train and classify the extracted three types of features; finally, according to the classification results, the defective electrowetting display unit is framed by a rectangle, and the barycentric coordinates of each defective unit are determined by the connected domain algorithm . The invention can detect and classify the defective display units of the electrowetting display, and at the same time obtain information such as its defective layer, defect category, coordinates and the like.
Description
technical field [0001] The invention relates to the field of electrowetting display, in particular to a defect identification method and device for a color electrowetting display unit. Background technique [0002] Electrowetting Display (EWD) was published in Nature in 2003, and related research has been developed in the past decade. Electrowetting display technology has fast response and can realize dynamic display; does not require backlight module, has low power consumption and low mass production cost; displays by reflecting ambient light, high brightness, high contrast and wide viewing angle; does not require color filter The light sheet can achieve many advantages such as colorization, and it is a display technology with great potential in the future. [0003] The electrowetting phenomenon refers to the phenomenon that the wettability of the droplet on the substrate is changed by changing the voltage between the droplet and the insulating substrate, that is, the cont...
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IPC IPC(8): G06T7/00G06T7/90
CPCG06T7/0004G06T7/90G06T2207/30121
Inventor 林志贤纪艳玲林珊玲唐谦吕珊红郭太良张永爱周雄图
Owner FUZHOU UNIV