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Method and device for detecting sizes of polaroid

A detection method and detection device technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of heavy polarizing plates, manpower and equipment production capacity loss, and cannot be predicted in advance, so as to ensure timeliness and reduce product quality. effect of influence

Inactive Publication Date: 2015-12-16
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. IQC sampling inspection of incoming materials is mainly based on taking some samples for testing. It cannot guarantee that 100% of the dimensions meet the specifications, and at the same time, it cannot guarantee timeliness
[0005] 2. After the attachment is completed, the precision inspection is carried out. If the size of the incoming material is abnormal, the polarizer needs to be reworked, resulting in the loss of manpower and equipment production capacity, which cannot be predicted in advance.

Method used

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  • Method and device for detecting sizes of polaroid
  • Method and device for detecting sizes of polaroid

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Embodiment 1

[0060] see figure 2 , is the implementation process of the detection method for the size of the polarizer provided in Embodiment 1 of the present invention, which mainly includes the following steps:

[0061] In step S201, during the alignment process of the polarizing plate CCD image sensor, receiving the image information of the polarizing plate sent by the image sensor;

[0062] In step S202, the length and width dimensions of the polarizer are calculated according to the image information of the polarizer;

[0063] In step S203, comparing the calculated length and width dimensions of the polarizing plate with preset specifications;

[0064] In step S204, if the calculated length and width dimensions of the polarizer exceed the preset specifications, an alarm signal is generated.

[0065] In step S205, if the calculated length and width dimensions of the polarizing plate are within the preset specification dimensions, then the dimension detection procedure ends.

Embodiment 2

[0067] see Figure 3A , is the implementation flow of the detection method for the size of the polarizer provided in Embodiment 2 of the present invention, which mainly includes the following steps:

[0068] In step S301, the original position information of the first image sensor, the second image sensor, the third image sensor, and the fourth image sensor when the polarizing plate CCD is aligned in advance;

[0069] In step S302, during the alignment process of the polarizing plate CCD image sensor, the first moving distance information sent by the first image sensor is received; the second moving distance information sent by the second image sensor is received; the second moving distance information sent by the third image sensor is received. 3. moving distance information; and, receiving fourth moving distance information sent by the fourth image sensor;

[0070] In the embodiment of the present invention, please refer to Figure 3B , is a schematic distribution diagram ...

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Abstract

The invention discloses a method for detecting the sizes of a Polaroid. The method comprises the steps of: in an aligning process of a polarizing plate CCD image sensor, receiving polarizing plate information sensed and sent by the image sensor; according to the polarizing plate information, calculating length and width sizes of a polarizing plate; comparing the calculated length and width sizes of the polarizing plate with preset specified sizes; if the calculated length and width sizes of the polarizing plate exceed the preset specified sizes, generating an alarming signal. According to the invention, 100% incoming material detection is carried out before attaching, and the sizes of the polarizing plate are ensured to be detected and inspecting when the attaching process is started, so that the timeliness is ensured, additional manpower and equipment production power losses caused by abnormal polarizing plate attaching do not exist, the influences of the polarizing plate size variance on the product quality are reduced, and material size early warning is realized before the attaching process is finished.

Description

【Technical field】 [0001] The invention relates to the technical field of alignment, in particular to a method and device for detecting the size of a polarizer. 【Background technique】 [0002] With the narrower frame of smartphone panels, the requirements for the attachment accuracy in the polarizer attachment process are more precise, and at the same time, higher requirements are put forward for the cutting size of the incoming polarizer. In the traditional attachment process, the polarizer The cutting accuracy of the board incoming material is mainly monitored by the IQC incoming material sampling inspection and the product size measurement after the attachment is completed. [0003] However, these two monitoring methods mainly have the following disadvantages: [0004] 1. The IQC sampling inspection of incoming materials is mainly based on taking some samples for testing. It cannot guarantee that 100% of the dimensions meet the specifications, and at the same time, it can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02
Inventor 朱青山尹德胜
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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