Method and device for measuring the shape and size of display area of mobile phone glass
A technology for displaying areas and measuring methods, applied in measuring devices, glass production, and optical devices, etc., can solve problems such as increased production difficulty, product scratches, high manpower and machine costs, and achieve data digitization and improved The effect of detection efficiency
Active Publication Date: 2022-08-09
深圳市信濠光电科技股份有限公司
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Problems solved by technology
The defect rate of product size itself exists, as well as the irregularity of the size of the window, which greatly increases the difficulty of production and increases the defect rate, resulting in the product size must be fully inspected to ensure 100% qualified
[0004] The traditional method of full inspection of the glass shape uses shell assembly card control. If all the shells are assembled, the protective film must be torn off, which will inevitably cause scratches on the product and increase the defective cost itself.
As for the outline of the display area, if the two-dimensional magnification is used to measure the film, a large number of two-dimensional machines will inevitably be added, thereby increasing machine and labor costs.
The above two methods, the measurement time and full inspection cause defects and the cost of manpower and machine is very high
Method used
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[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0046] The concept, specific structure and technical effects of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts are all within the scope of The scope of protection of the present invention. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but refer to a better coupling structure by adding or reducing coupling accessories according to the spe...
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The invention discloses a method and device for measuring the shape and size of a display area of a mobile phone glass, and relates to the technical field of mobile phone measurement, including a camera, an image matching device, and an OVM image measuring device. , the image matching device is used to search for the unique edge or area of the product, establish the first coordinate system, the OVM image measuring device is used to measure the shape of the product to obtain the edge line, accurately establish the second coordinate system and import the coordinate points of each contour into the second coordinate system. In the coordinate system, for each coordinate point of the imported contour, set the vector directions I and J, and calculate the results of the output vectors i and j to obtain the contour value. The present invention can quickly realize the full inspection of the appearance and assembly size of the mobile phone glass and the display area of the mobile phone glass. Full inspection of size and non-standard round R angle contour matching degree, and data digitization, so as to intercept the outflow of defective products, which can not only improve the inspection efficiency, but also be suitable for large-scale glass inspection operations.
Description
technical field [0001] The invention relates to the technical field of mobile phone measurement, in particular, to a method and device for measuring the shape and size of a display area of a mobile phone glass. Background technique [0002] Mobile phone touch screen glass is mainly used for mobile phone touch screen panels. Its main component is silicon dioxide. It improves the chemical composition of the glass surface by ion exchange to achieve the purpose of glass strengthening. The main performance depends on the depth of stress (DOL) and stress value. (CS) embodiment. The glass brands currently used in the field of mobile phone covers include Asahi Glass, Longji, NEG, Corning, etc. The glass display area of mobile phone mainly relies on the combination of standard film and screen, which is realized by silk screen printing and pad printing ink. Mobile phone cover glass has the characteristics of high smoothness, high hardness and high strength. During the processing...
Claims
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IPC IPC(8): G01B11/00G01B11/02G01B11/14G01B11/22G01B11/24
CPCG01B11/00G01B11/02G01B11/14G01B11/22G01B11/24Y02P40/57
Inventor 温天雨
Owner 深圳市信濠光电科技股份有限公司