权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

SBIR Phase I: Synthesis of Negative Birefringence Liquid Crystals

SBIR第一阶段：负双折射液晶的合成

基本信息

批准号：
9560914
负责人：
William Thurmes
金额：
$ 7.5万
依托单位：
Displaytech Incorporated
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1996
资助国家：
美国
起止时间：
1996-03-01 至 1997-02-28
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9560914&HistoricalAwards=false
关键词：
SBIR Phase Synthesis Negative Birefringence

项目摘要

This Small Business Innovation Phase I project will synthesize materials with negative birefringence which can be used to decrease the birefringence of LC mixtures. This will allow the firm to make thicker cells which will increase the yields and minimize display problems due to minor variances in cell thickness. The birefringence of liquid crystals generally falls with increasing wavelength (a property called birefringence dispersion), but the optimal birefringence for a fixed path length rises with increasing wavelength. This leads to chromatic behavior in LC displays. We furthermore propose to synthesize LC materials with negative birefringence dispersion, which can be used to greatly decrease the chromicity of LC displays. There are many immediate ramifications of developing a liquid crystal with negative birefringence dispersion. For instance, liquid crystal shutters would no longer suffer from such severe chromatic disturbances, optical filters would be much more color-balanced and provide more free spectral range, polarization interference filters would need fewer stages and hence be less expensive while transmitting more light, and Fabry-Perot tunable filters could be made using liquid crystal SLI\Is. Liquid Crystal shutters without chromatic disturbances, optical filters more color balanced and have more spectral range, benefits to polarization interference filters, make Fabry-Perot tunable filters using liquid crystal SLM's.

这个小型企业创新第一阶段项目将合成具有负双折射的材料，可用于降低LC混合物的双折射。这将使公司能够制造更厚的电池，这将增加产量，并最大限度地减少由于电池厚度的微小变化而导致的显示问题。液晶的双折射通常随着波长的增加而下降（称为双折射色散的特性），但对于固定路径长度的最佳双折射随着波长的增加而上升。这导致LC显示器中的色彩行为。此外，我们还提出了合成具有负双折射色散的液晶材料，这将大大降低液晶显示器的色度。开发具有负双折射色散的液晶有许多直接的分支。例如，液晶快门将不再遭受这种严重的色彩干扰，光学滤波器将更加色彩平衡并且提供更多的自由光谱范围，偏振干涉滤波器将需要更少的级并且因此在透射更多的光的同时更便宜，并且法布里-珀罗可调谐滤波器可以使用液晶SLI\I来制造。液晶快门无色干扰，光学滤波器更色彩平衡，具有更大的光谱范围，有利于偏振干涉滤波器，使法布里-珀罗可调谐滤波器使用液晶SLM的。