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Sheet panel positoning method and device thereof

A positioning method and technology of positioning device, which are applied in the directions of measuring device, identification device, conversion sensor output, etc., can solve the problems of rising cost of positioning device, hindering low price of liquid crystal display device, and generating errors, and achieve the effect of realizing manufacturing cost.

Inactive Publication Date: 2007-04-04
YODOGAWA MEDEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in such a method using alignment marks, it is necessary to set alignment marks on the sheet in advance.
In addition, the use of an image recognition device leads to an increase in the cost of the positioning device, which is a major factor hindering the realization of low prices for liquid crystal display devices.
Furthermore, in the calculation process of image recognition, there are also disadvantages of errors

Method used

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  • Sheet panel positoning method and device thereof
  • Sheet panel positoning method and device thereof
  • Sheet panel positoning method and device thereof

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Embodiment Construction

[0051] Hereinafter, a veneer positioning method and a veneer positioning device according to an embodiment of the present invention will be described with reference to the drawings. First, the principle of the thin plate positioning method according to this embodiment will be described with reference to FIGS. 1 to 7 . In addition, FIGS. 1 to 7 are first to seventh conceptual diagrams showing a thin plate positioning method according to the present embodiment. In addition, in this embodiment, as an example of a sheet, positioning of a polarizing plate (film) for sticking on a liquid crystal cell sheet will be described.

[0052] (How to position the thin plate)

[0053] In the positioning method of the present embodiment, first, as shown in FIG. 1 , the center of rotation P is arranged on the first virtual straight line VL1 . Further, on the first imaginary straight line VL1 , a rotation center confirming sensor S1 is disposed at a position above the rotation center P at a pr...

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Abstract

Provided is a thin plate positioning method and a thin plate positioning device with which a thin plate can be accurately positioned even in low cost equipment without using an image recognition device. A rotation center (P) is arranged on a first virtual straight line (VL1). A rotation center confirmation sensor (S1) is arranged on the first virtual straight line (VL1). A theta confirmation sensor (S2) is arranged on a second virtual straight line (VL2) orthogonal to the first virtual straight line (VL1). Further, an arrangement position conformation sensor (S3) is arranged on a third virtual straight line (VL3) orthogonal to the second virtual straight line (VL2).

Description

technical field [0001] The present invention relates to a veneer positioning method and a veneer positioning device for accurately positioning a veneer at a predetermined position. Background technique [0002] Various fields can be mentioned as a technical field for positioning a thin plate at a predetermined position. For example, in the technical fields such as liquid crystal display devices, the production line of liquid crystal display devices is automated, so the positioning of liquid crystal cell sheets (glass sheets) and the positioning of polarizers (films) attached to liquid crystal cell sheets have become very important. positioning elements. [0003] In the existing thin plate positioning device, the following method is used: by presetting the positioning mark on the thin plate, using an image recognition device or the like to read the positioning mark, performing predetermined image calculation processing, grasping the current position of the thin plate, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/68G09F9/00G02F1/13
CPCG01D5/266G02F1/1303G02F1/133354H01L21/68
Inventor 木村滋若井大昌
Owner YODOGAWA MEDEC
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