Unlock instant, AI-driven research and patent intelligence for your innovation.

A detection device and detection method for the transmission axis of a polarizer

A detection device and a technology for polarizers, applied in the field of polarizers, can solve the problems of low detection efficiency of the absorption axis and transmission axis of polarizers, so as to improve the detection speed and detection accuracy, and improve the detection speed and accuracy. Effect

Active Publication Date: 2022-03-08
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a detection device for the transmission axis of a polarizer, which can solve the problem that the detection efficiency of the absorption axis and the transmission axis of the polarizer in the prior art is too low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A detection device and detection method for the transmission axis of a polarizer
  • A detection device and detection method for the transmission axis of a polarizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] See figure 1 , figure 1 The detection device 100 of the polarizer transmitted shaft provided by the embodiment of the present invention, the detecting device 100 transmitting the shaft of the polarizer transmits the light source 10, the detection unit 20, the spectrometer 30, the first stage 40, the first Two table 50 and servo motor.

[0028] The detecting unit 20 is located on one side of the backlight 10, which includes a first detecting polarizing plate 21 and a second detecting polarizing plate 22, in the present embodiment, the second detecting polarizer 22 is located at the first detection polarization. The sheet 21 away from the side of the backlight 10, in other embodiments, the second detecting polarizing plate 22 may be located on one side of the first detecting polarizer 21 close to the backlight 10.

[0029] The first detecting polarizing plate 21 has a first absorbing shaft and a first transmitting shaft, the position of the first absorbing shaft and the first...

Embodiment 2

[0051] The polarizing sheet of the present embodiment transmits the axis of the detecting device, which is the same as that in the first embodiment, and the same configuration can be referred to in the corresponding description in Example 1, and details are not described herein again.

[0052] The detection method of the polarizer transmission shaft in this embodiment is substantially the same as the corresponding detection method in the first embodiment, and the main differences of the two are in step 8 and 9.

[0053] Step 8 in this embodiment: calculates L3-L4, determines whether or not L3-L4 is greater than 0, when L3-L4 <0, performs a number of angular positions and positions at both ends of the angle and the brightness of the position and the position at the position of the position. One parameter and second parameter, the angle center line segmentation and marks the angle and brightness of the center line position to the third parameter, calculate the ΔL to determine the an...

Embodiment 3

[0056] The polarizing sheet of the present embodiment transmits the axis of the detecting device, which is the same as that in the first embodiment, and the same configuration can be referred to in the corresponding description in Example 1, and details are not described herein again.

[0057] The detection method of the polarizer transmission shaft in this embodiment is substantially the same as the corresponding detection method in the first embodiment, and the main differences of the two are in step 8 and 9.

[0058]Step 8 in this embodiment: calculates L3-L4, determines whether or not L3-L4 is greater than 0, when L3-L4> 0, performing the brightness of the angular position and position at the angle between the angles and the position of the position, respectively One parameter and second parameter, the angle center line segmentation and marks the angle and brightness of the center line position, and calculate the ΔL to determine the minimum brightness position, and calculate t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present application discloses a detection device for the transmission axis of a polarizer and a detection method thereof. The detection device for the transmission axis of a polarizer includes a backlight; a detection unit is located on one side of the backlight, and the detection unit includes a first A detection polarizer and a second detection polarizer, the first detection polarizer has a first absorption axis and a first transmission axis, the positions of the first absorption axis and the first transmission axis are known; the The second detection polarizer has a second absorption axis and a second transmission axis; a spectrometer is located on the side of the detection unit away from the backlight, and the spectrometer is used to obtain the rotation angle of the second detection polarizer The brightness of the light of the backlight passing through the first detection polarizer and the second detection polarizer at different rotation angles from the second detection polarizer, and based on the dichotomy method according to the second detection polarizer The rotation angle of the sheet and the luminance of the light are used to calculate the interval position where the transmission axis or the absorption axis is located and to control the rotation angle of the second detection polarizer.

Description

Technical field [0001] The present application relates to the field of polarizing tabs, and more particularly to a detecting apparatus for transmitting a polarizing shaft and a detection method thereof. Background technique [0002] Currently, the rotary stage attached to the servo motor is attached to the sequential measurement, the servo motor is rotated 0.01 °, the spectrometer collects a set of data, which can only be tested, such as 0 ° -120 °, interval interval The 0.01 ° position spectrum must be acquisition, the test efficiency is very low, and the time takes a long time to find the absorption axes of the two polarizers and the transmit shaft. [0003] Therefore, it is necessary to develop a new type of polarizer transmitted through the axis to overcome the deficiencies of the prior art. Inventive content [0004] It is an object of the present invention to provide a detecting apparatus for a polarizing shaft that can solve the problem of too low the detection efficiency...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
CPCG01M11/02G01M11/0207
Inventor 刘洋
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD