Retardation control element, liquid crystal display device...

Details Retardation control element, liquid crystal display device... Retardation control element, liquid crystal display device...

2007-09-24

2009-06-30

Pak, Sung H (Department: 2883)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S117000

Reexamination Certificate

active

07554636

ABSTRACT:
The invention provides a retardation control element capable of inhibiting a retardation defect that becomes a cause of light leakage and color shift of a liquid crystal display device from occurring, a method of producing the same, and a liquid crystal display device including such a retardation control element. A method of producing a retardation control element includes: a first step of filtering liquid crystal ink containing crosslinkable liquid crystal molecules with a filter material having a maximum pore diameter in the range of 0.1 to 5 μm; a second step of coating the filtered liquid crystal ink in a thin film on a revolving light-transmitting base material by means of a spin coating method; a third step of, after drying the base material under reduced pressure as needs arise, heating the coated liquid crystal ink to a liquid crystal phase temperature to align the crosslinkable liquid crystal molecules; and a fourth step of photo-polymerizing the aligned crosslinkable liquid crystal molecules each other to form a birefringence functional layer, wherein the second step is carried out with the base material covered with a tight cover.

REFERENCES:
patent: 2005/0179003 (2005-08-01), Heckmeier et al.
patent: 2006/0152801 (2006-07-01), Matsunaga
patent: A 2000-221506 (2000-08-01), None
patent: A 2004-524385 (2004-08-01), None

Affiliated with

Also associated with

Rating

Retardation control element, liquid crystal display device... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retardation control element, liquid crystal display device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retardation control element, liquid crystal display device... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4086296