Array substrate detecting device and optical system applied to same

An array substrate and optical system technology, applied in optics, optical components, nonlinear optics, etc., can solve problems such as defect detection rate, achieve the effects of improving product quality, better resolution, and reducing false defects

Inactive Publication Date: 2014-10-22
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to improve the accuracy of array substrate detection, improve the detection rate of defects, and improve product quality

Method used

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  • Array substrate detecting device and optical system applied to same
  • Array substrate detecting device and optical system applied to same
  • Array substrate detecting device and optical system applied to same

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be noted that unless otherwise spe...

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Abstract

The invention discloses an optical system applied to an array substrate detecting device. The optical system comprises a light source, a first polarizer, an optical prism set, a second polarizer and a light intensity detector, wherein the first polarizer is used for receiving a light beam emitted by the light source and converting the light beam into first linearly polarized light; the optical prism set is used for receiving the first linearly polarized light and reflecting the first linearly polarized light to a liquid crystal detecting head; the second polarizer is used for receiving second linearly polarized light and converting the second linearly polarized light into third linearly polarized light, wherein the second linearly polarized light is reflected by the liquid crystal detecting head and transmitted through the optical prism set; the light intensity detector is used for receiving the third linearly polarized light and calculating the intensity of the third linearly polarized light; the first polarizer and the second polarizer are opposite in polarization direction. Only unidirectional vector light waves can penetrate through the polarizers, the reflected light affects light wave direction vectors under the action of liquid crystal optical rotation, and then the light waves are filtered through the polarizers, so that reflection light intensity differences of good and bad pixels received by the light intensity detector are enlarged, a detecting standard is easy to set, the frequency of false rejects is reduced, the good and bad pixels are distinguished well, the detection rate is increased, and an improvement direction is provided for product quality promoting.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an optical system for array substrate inspection equipment and array substrate inspection equipment. Background technique [0002] At present, the manufacturing process of TFT-LCD (Thin Film Transistor-Liquid Crystal Display, Thin Film Field Effect Transistor Liquid Crystal Display) can be roughly divided into three stages: 1. Array process, forming several independent TFTs on a larger glass substrate Pixel array circuit, each pixel array area corresponds to a liquid crystal display; 2. Box forming process, coating liquid crystal on the TFT substrate, covering color filters, assembling LCD panels and cutting into independent liquid crystal displays; 3. Install the backlight, polarizer and peripheral circuits for the liquid crystal display to form a complete TFT-LCD module. [0003] In the array substrate process, after the array substrate pixel array circuit is deposite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
CPCG01N21/956G01N2021/9513G02B27/283G02B5/3016G01N21/21
Inventor 刘冲赵海生
Owner BOE TECH GRP CO LTD
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