Editing TFT LCD (section)

===Advanced fringe field switching (AFFS){{anchor|AFFS}}===
This is an LCD technology derived from the IPS by Boe-Hydis of Korea. Known as fringe field switching (FFS) until 2003,<ref>{{cite web
 | url = http://vertexlcd.com/technology.htm#point04
 | title = AFFS & AFFS+
 | publisher = Vertex LCD
 | work = Technology
 | access-date = 2010-08-12
 | archive-date = 2016-05-18
 | archive-url = http://arquivo.pt/wayback/20160518020420/http://vertexlcd.com/technology.htm#point04
 | url-status = dead
 }}</ref> advanced fringe field switching is a technology similar to IPS or S-IPS offering superior performance and color gamut with high luminosity. Color shift and deviation caused by light leakage is corrected by optimizing the white gamut, which also enhances white/grey reproduction. AFFS is developed by Hydis Technologies Co., Ltd, Korea (formally Hyundai Electronics, LCD Task Force).<ref>{{cite journal
 | title = A Novel Outdoor Readability of Portable TFT-LCD with AFFS Technology
 | journal = SID Symposium Digest of Technical Papers
 | date = June 2006
 | volume = 37
 | issue = 1
 | publisher = AIP
 | pages = 1079–82
 |author1=K. H. Lee |author2=H. Y. Kim |author3=K. H. Park |author4=S. J. Jang |author5=I. C. Park |author6=J. Y. Lee  |name-list-style=amp | doi = 10.1889/1.2433159| s2cid = 129569963
 }}</ref>

In 2004, Hydis Technologies Co., Ltd licensed its AFFS patent to Japan's Hitachi Displays. Hitachi is using AFFS to manufacture high end panels in their product line. In 2006, Hydis also licensed its AFFS to Sanyo Epson Imaging Devices Corporation.

Hydis introduced AFFS+ which improved outdoor readability in 2007.{{Citation needed|date=January 2012}}