PRETILT EFFECT ON A VERTICALLY ALIGNED LIQUID CRYSTAL CELL FOR OPTICAL DISPLAYS

被引：2

作者：

Tkachenko, Volodymyr ^{[1
]}

Abbate, Giancarlo ^{[2
,3
]}

Marino, Antigone ^{[3
,4
]}

Santamato, Enrico ^{[3
,4
]}

Bennis, Noureddine ^{[5
]}

Quintana, Xabier ^{[5
]}

Oton, Jose M. ^{[5
]}

机构：

[1] INFM Coherentia, CNR, Dip Sci Fis, Via Cintia MS Angelo, Naples, Italy

[2] CNR, INFM LiCryL & Coherentia, Naples, Italy

[3] Univ Naples Federico II, Naples, Italy

[4] CNISM, Naples, Italy

[5] Univ Politecn Madrid, Ciudad Univ, E-28040 Madrid, Spain

来源：

CAOL 2008: PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON ADVANCED OPTOELECTRONICS AND LASERS | 2008年

关键词：

liquid crystals; optical display; alignment layer; pretilt; ellipsometry;

D O I：

10.1109/CAOL.2008.4671984

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A nonzero pretilt angle is generally used in vertical aligned (VA) mode liquid crystal (LC) displays to aviod domain formation during molecular reorientation by electric field, as well as to reduce both driving voltage and response time. The pretilt effect on electro-optical properties of a VA LC cell has been investigated. Pretilt was controlled changing the angle of SiOx deposition on the substrate surfaces. The tilt angle distribution versus the applied voltage is obtained by Variable Angle Spectroscopic Ellipsometry and compared with the simulated curves. A good compromise between contrast and response time is reached in cells with different pretilt values on the two cell substrates.

引用

页码：33 / +

页数：2

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