P‐24: Incorporation of Optiva Polarizers in LCD Production Line

Bobrov, Y.; Lazarev, Pavel; McMurtry, D.; Remizov, S. V.

doi:10.1889/1.1831942

Cited by 7 publications

(5 citation statements)

References 3 publications

(5 reference statements)

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“…While drying, the layer crystallizes to a submicron-thick TCF functional layer with dichroic molecules aligned over the entire coated surface. A uniform wet coating of 5-15-µm thick [1][2][3]12 produces TCFs with a range of thicknesses from 100 to 1000 nm.…”

Section: Tcf Materials and Coating Techniquementioning

confidence: 99%

“…The strong anisotropy of the refraction and absorption indices [9][10][11] makes TCF attractive for applications in liquidcrystal-displays (LCDs) and organic light-emitting devices (OLEDs). [1][2][3][4][5][6][12][13][14][15] The first industrial applications of TCF technology include plastic film polarizers, retarders, and color-correction films for the flat-panel-display (FPD) market. We discuss in this paper the optical and color characteristics of the first film products as well as their LCD applications.…”

Section: Introductionmentioning

confidence: 99%

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LCD applications of thin‐crystal‐film polarizers

Bobrov¹,

Kuchenkova²,

Kouznetsov³

et al. 2004

J Soc Info Display

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Abstract— We have developed a new technique for the production of thin crystal film (TCF) by deposition, molecular alignment, and the drying of water‐based lyotropic‐liquid‐crystal (LLC) materials. TCF exhibits high optical anisotropy and birefringence. This paper presents liquid‐crystal‐display (LCD) applications and opportunities for TCF plastic sheet polarizers, retarders, and color‐correction films as well as LCD designs with TCF internal polarizers.

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Section: Tcf Materials and Coating Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

LCD applications of thin‐crystal‐film polarizers

Bobrov¹,

Kuchenkova²,

Kouznetsov³

et al. 2004

J Soc Info Display

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“…The retardation characteristics of new colored (R001, Y18) and highly transparent (DSCG) TCFs are presented in the Table 1. The wide range of retardations available, the thin form factor and the ability to coat on a variety of substrates [14] gives a great degree of flexibility and advantages in many LCD applications, including LCoS projection, STN and TN displays. Thin multilayer retarder films can be made into reflective polarizers.…”

Section: Performance Of Tcf Retardersmentioning

confidence: 99%

26.2: Molecular Alignment in Crystal Polarizers and Retarders

Fiske¹,

Ignatov²,

Lazarev³

et al. 2002

Symp Digest of Tech Papers

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Optiva, Inc. has developed new technology for Thin Crystal Film (TCF) polarizers and retarders manufactured by deposition and drying of water-based lyotropic liquid crystal materials. An effective method to control and monitor two significant steps of this technology, a self-assembly into rod-like supramolecules in liquid material and its subsequent molecular alignment into TCF, is X-ray diffraction. There is direct correlation between X-ray data and the final optical characteristics of TCF polarizers and retarders and therefore its implementation into LCD applications.

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“…These films have high temperature and environmental stability (TCF is stable up to 250ºC) [11]. They have found industrial applications as nano-film polarizers [3,4,10,[12][13][14][15] and retarders [16,17] for passive LCD. This paper illustrates molecular crystal structure of TCF and supramolecular ordering in its LLC precursor.…”

Section: Introductionmentioning

confidence: 99%

Thin crystal film polarizers and retarders

Ignatov¹,

Lazarev²,

Назаров³

et al. 2002

SPIE Proceedings

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We developed a new technology for thin crystal film (TCF) manufacturing based on water-soluble salts of aromatic polycyclic compounds. TCF is produced by coating and subsequent drying of an aqueous solution on plastic or glass surface into molecularly oriented 100-1000 nm thick crystal nano-film. First industrial application of nano-films is TCF polarizer for liquid crystal displays (LCD). TCF polarizers are made from modified organic dyes with relatively narrow spectral absorption band. Mixing various dyes allows covering broad spectral region. Blending provides variety of combinations of background and character colors that are necessary for applications. TCF made from dichroic dyes are highly anisotropic, biaxial extraordinary polarizers. Birefringence of TCF made from some materials reaches 1.0. Several highly birefringent TCFs show specific retardation characteristics. For example, 300 nm thick TCF based on dichroic dye with narrow absorption band at 450 nm and transparent in the long-wave region, has maximum birefringence of 0.85 in the wavelength region of 500-800 nm. TCF are available for industrial application in LCD as external, internal polarizers and retarders.

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P‐24: Incorporation of Optiva Polarizers in LCD Production Line

Cited by 7 publications

References 3 publications

LCD applications of thin‐crystal‐film polarizers

LCD applications of thin‐crystal‐film polarizers

26.2: Molecular Alignment in Crystal Polarizers and Retarders

Thin crystal film polarizers and retarders

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