Magnifier and method for detecting foreign matter point of display panel
A display panel and magnifying glass technology, applied in magnifying glass, optics, instruments, etc., can solve problems such as complicated use, auxiliary tools need to be improved, and time-consuming detection process
Inactive Publication Date: 2018-01-26
BOE TECH GRP CO LTD +1
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Problems solved by technology
In this way, two steps are required to complete the measurement of foreign matter points, and it is more complicated to use the two auxiliary tools, the magnifying glass and the comparison card, resulting in the problem that the detection process takes a long time
[0004] Therefore, the auxiliary tools used to determine the defective points of the display panel at this stage still need to be improved
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[0039] The following describes the embodiments of the present invention in detail, and those skilled in the art will understand that the following embodiments are intended to explain the present invention, and should not be regarded as limiting the present invention. Unless otherwise specified, in the following examples that do not explicitly describe specific techniques or conditions, those skilled in the art can carry out according to commonly used techniques or conditions in this field or according to product instructions. The reagents or instruments used were not indicated by the manufacturer, and they were all commercially available conventional products.
[0040] In one aspect of the invention, the invention provides a magnifying glass. refer to Figure 4~6 , the magnifying glass of the present invention is described in detail.
[0041] According to an embodiment of the present invention, the magnifying glass includes a lens; wherein, referring to Figure 4 , the lens...
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Abstract
The invention provides a magnifier and a method for detecting a foreign matter point of a display panel. The magnifier comprises a lens, and the lens is provided with a foreign matter point standard sample and a calibrated scale. According to the magnifier, the lens is provided with the calibrated scale and the foreign matter point standard sample, when quality inspection personnel discovers a defect point on the display panel and determines a specific generation layer position thereof, dimension measurement and standard point comparison of the foreign matter point can be rapidly completed only by employing the magnifier, the usage and movement of a comparison card can be avoided, the one-step operation is simpler, the time is less consumed, the quality inspection time of the display panelis effectively shortened, and the efficiency of defect analysis of the display panel is improved.
Description
technical field [0001] The invention relates to the technical field of display panel detection, in particular, the invention relates to a magnifying glass and a method for detecting foreign matter points on a display panel. Background technique [0002] At present, in the manufacturing process of the array substrate (TFT) of the liquid crystal display (LCD), many undesirable situations such as foreign matter points are prone to occur. According to the different occurrence layers, it is mainly divided into two types, namely foreign matter inside the liquid crystal cell (Cell), foreign matter between the polarizer (POL) and the liquid crystal cell (Cell), and then for different occurrence layers, need to take measures different measures to improve it. [0003] At this stage, after the quality inspectors discover the bad situation of foreign matter, they need to use a magnifying glass to confirm the occurrence layer of the bad point. The foreign matter under the magnifying gla...
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IPC IPC(8): G02B25/00G02F1/13
Inventor 熊廷忠张蓉王丙瑞王红彬刘志骞张贺
Owner BOE TECH GRP CO LTD