Reflective polarizer for LCDs increases screen brightness by 50%

reflective_LCD_polarizer

(Image: Tech-On)

Tokyo, Japan--DuPont Teijin Films, Ltd. says it has developed the first reflective polarizer for use in liquid-crystal displays (LCDs). The plate is a combination of polymer and multilayer film technology, and recycles some of the rejected polarization back toward the viewer to increase light output.

As does a conventional polarizing plate for LCDs, the plate passes one linear polarization while rejecting the other. But rather than absorbing the rejected light, the plate reflects it backwards so that it hits a second layer, which upon re-reflection rotates the polarization of some of the light so that this time it passes through the polarizing plate. When compared to a standard polarizer, the result is a 50% increase in light output (for the same light input) or a 33% reduction in required power (for the same light output).

DuPont Teijin Films says that the new polarizer can be manufactured by only a slight modification of the company's facilities, without a large investment. The company's 2010 fiscal projection is for an LCD polarizer market of about 1 trillion yen (US $ 13.1 billion) within a few years; DuPont Teijin Films is aiming for LCD polarizer sales in fiscal 2015 of 10 billion yen (US $ 131 million).

The company is exhibiting its polarizer at FPD International, a flat-panel-display technology exhibition held at Pacifico Yokohama, Oct. 26-28, 2011 (Yokohama, Japan).

Sources:

http://www.teijin.co.jp/news/2011/jbd111025.html

http://techon.nikkeibp.co.jp/english/NEWS_EN/20111026/199819/



Get All the Laser Focus World News Delivered to Your Inbox

Subscribe to Laser Focus World Magazine or email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Most Popular Articles

White Papers

Tamarisk® Custom Lens Calibration

Though the Tamarisk product line is optimally designed to suit a variety of end-uses, DRS has dev...

DRS Technologies’ Patented Sensor Technology Revealed

Learn the truth about what’s behind DRS Technologies’ competitive advantage over thermal sensor m...

NIST Traceable Spectral Responsivity Calibration of Photodiode Detectors

All Newport optical detectors are recommended for a 12 month recalibration interval. Newport main...
Technical Digests

Fiber for Fiber Lasers

The development of higher-power and higher-energy fiber lasers has benefited from many advances i...

Click here to have your products listed in the Laser Focus World Buyers Guide.

PRESS RELEASES

NanoZoomer SQ

03/06/2015 NanoZoomer SQ is Hamamatsu’s new desktop single slide scanner for creating Whole Slide Images of ...

HORIBA Scientific Releases New LabSpec 6 MultiWell Module

01/30/2015 HORIBA Scientific, global leader in Raman spectroscopy systems, announces the release of a new Mu...

ATS 200: The first alignment turning station with fully integrated measurement technology

01/23/2015 The ATS 200 combines a compact and highly stable turning lathe with TRIOPTICS' proven centration ...

VISION 2014 – TRIOPTICS gives a positive summary

01/23/2015 On the world's leading trade fair for image processing, TRIOPTICS presented its ProCam® product p...
Social Activity
  •  
  •  
  •  
  •  
Copyright © 2007-2014. PennWell Corporation, Tulsa, OK. All Rights Reserved. PRIVACY POLICY | TERMS AND CONDITIONS