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Circular polarizing panel detection method and circular polarizing panel detection device

A panel detection and circular polarization technology, which is applied in measuring devices, optical instrument testing, optics, etc., can solve the problems of high price of circular polarization detection equipment, inability to accurately test circular polarization panel products, etc., and achieve the effect of fast and accurate measurement

Active Publication Date: 2019-07-02
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing circular polarization detection equipment is expensive and can only measure a single wavelength one by one, and can only test light-transmitting samples, and cannot accurately test the existing circular polarization panel products

Method used

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  • Circular polarizing panel detection method and circular polarizing panel detection device
  • Circular polarizing panel detection method and circular polarizing panel detection device
  • Circular polarizing panel detection method and circular polarizing panel detection device

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Embodiment Construction

[0043] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0044] see figure 1 , the present invention firstly provides a circular polarizing panel detection method, comprising the following steps:

[0045] Step S1, combining figure 2 , providing a circular polarizing panel 1 to be detected and a circular polarizing panel detection device placed on the light emitting side of the circular polarizing panel 1;

[0046] The circularly polarized panel detection device includes a polarizer 3 and a spectrometer 5 placed behind the polarizer 3 .

[0047] Such as image 3 and Figure 4 As shown, the analyzer 3 includes a polarizer 31, and a depolarization filter 33 whose fast axis direction forms a fixed angle with the optical axis direction of the polarizer 31. Preferably, the optical axis direction of t...

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Abstract

The invention provides a detection method and device of a circular polarization panel. According to the detection method, a principle of wavelength dispersibility is utilized, a Polaroid (31) in a polarization analyzer (3) is rotated by taking a preset angle as an interval, light emitted by the circular polarization panel (1) enters a spectrometer (5) through the Polaroid (31) and a depolarization filter disk (33), the spectrometer (5) is used to measure a full spectrum every time the Polaroid (31) is rotated, and the circular polarization length and the circular polarization delay magnitude can be calculated according to full-spectrum data measured by the spectrometer (5). Thus, the circular polarization feature of the panel can be measured rapidly and accurately, the quality of the circular polarization panel can be evaluated, and a process of a circular polarization panel module is monitored effectively.

Description

technical field [0001] The invention relates to the field of display panel detection, in particular to a circular polarizing panel testing method and a circular polarizing panel testing device. Background technique [0002] With the development of display technology, flat panel display devices such as liquid crystal display panels (Liquid Crystal Display, LCD) and organic light emitting diode display panels (Organic Light Emitting Diode, OLED) have gradually replaced CRT displays. [0003] LCD panels have many advantages such as thin thickness, power saving, and no radiation, and have been widely used: such as: LCD TVs, mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or notebook computer screens, etc. [0004] OLED panels have many advantages such as self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, flexible disp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02G02F1/13
CPCG01M11/00G02F1/1309
Inventor 徐亮林奇颖
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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