Pretilt angle control for single-cell-gap transflective liquid crystal cells

Tien Jung Chen; Kuei Lin Chu

doi:10.1063/1.2889495

Pretilt angle control for single-cell-gap transflective liquid crystal cells

Tien Jung Chen
, Kuei Lin Chu

Department of Electro-Optical Engineering

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

Doping a minute amount of photocurable monomers in a liquid crystal (LC) cell, we can stabilize the LC alignment after UV exposure by forming a LC pretilt layer on the substrate surface. By varying the UV exposure time, we can control the pretilt angle of the LCs continuously. A single-cell-gap transflective LC cell was fabricated through a photomask. The LC molecules at the transmissive and reflective pixels are pretilted at 54° and 65°, respectively, at which optimal phase retardations of half and quarter wavelengths are achieved. This type of transflective LC display shows an excellent electro-optical match between the two subpixels.

Original language	English
Article number	091102
Journal	Applied Physics Letters
Volume	92
Issue number	9
DOIs	https://doi.org/10.1063/1.2889495
State	Published - 2008

Bibliographical note

Funding Information:
The author would like to thank Professor S.-L. Wu of Tatung University for his assistance in providing the monomer used in this experiment. This research was supported by the National Science Council of R.O.C. under Contract No. NSC 96-2221-E-027-060.

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abstract = "Doping a minute amount of photocurable monomers in a liquid crystal (LC) cell, we can stabilize the LC alignment after UV exposure by forming a LC pretilt layer on the substrate surface. By varying the UV exposure time, we can control the pretilt angle of the LCs continuously. A single-cell-gap transflective LC cell was fabricated through a photomask. The LC molecules at the transmissive and reflective pixels are pretilted at 54° and 65°, respectively, at which optimal phase retardations of half and quarter wavelengths are achieved. This type of transflective LC display shows an excellent electro-optical match between the two subpixels.",

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Pretilt angle control for single-cell-gap transflective liquid crystal cells

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