&lt;title&gt;TN-LCD viewing angle compensation with holographic volume gratings&lt;/title&gt;

Joubert, Cécile; Lehureau, Jean‐Claude; Lee, Mane‐Si Laure; Delauzun, F.; Morbieu, Bertrand

doi:10.1117/12.343865

Cited by 5 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The splayed molecular organization is obtained by the planar alignment at the substrate and the homeotropic alignment under the action of the surface energy at the interface with air. A tilted compensation film can also be realized by the use of volume holograms with a tilted optical axis [33]. The optical anisotropy in that case is based on form birefringence and the optical function is the same as that of the tilted discotics, though with a real monotonic tilt rather than the splayed configuration with a gradually changing optical axis over the thickness.…”

Section: Functional Polymer For a Brighter Displaymentioning

confidence: 99%

Review: Progress in liquid crystal displays by new developments in functional polymers

2001

View full text Add to dashboard Cite

Functional polymers have become essential in the functioning and performance of many products for information and communication technologies. Special polymers have been constructed with an accurate control over their morphology to a size down to the wavelength of light. These polymers improve liquid crystal displays on eye-catching properties like brightness and viewing angle. The improved energy efficiency is crucial for the mobile communication equipment in today's information society.

show abstract

Section: Functional Polymer For a Brighter Displaymentioning

confidence: 99%

Review: Progress in liquid crystal displays by new developments in functional polymers

2001

View full text Add to dashboard Cite

show abstract

“…We call this situation, between form birefringence and diffraction, the intermediate regime. Joubert et al 9 demonstrated the ability of volume index gratings, used in the intermediate regime, to compensate for TN-LCD, but a more precise study of this regime still has to be done. Lalanne et al 10 proposed a generalization of the EMT ͑the high-order EMT͒ providing accurate theoretical results of effective relative permittivity until illumination conditions close to the grating diffraction ͑grating period close to the optical wavelength͒.…”

Section: Introductionmentioning

confidence: 99%

Volume index gratings in the intermediate and form-birefringence regimes

et al. 2002

View full text Add to dashboard Cite

We present a study of volume index gratings operating in the form-birefringence regime and what we call the intermediate regime, defined as the regime between form birefringence and the onset of diffraction. The operating regime is characterized by the ratio between the measurement wavelength and the grating period: form birefringence regime below 10, diffraction around 3, and intermediate regime between 10 and 3. The behavior of the gratings in a given regime is studied by plotting the induced retardation as a function of the incidence angle. The shape of the curve fully characterizes the regime. We report on theoretical calculations of retardation by use of a rigorous theory and its experimental validation by measuring retardation of recorded gratings in photopolymers.

show abstract