Photoalignment of polyimide containing cinnamoyl sidechain and its application to 5.7 inches color STN LCD

K. Y. Han; S. H. Yu; B. H. Chae; J. K. Song; Y. K. Jang; H. S. Yu

Photoalignment of polyimide containing cinnamoyl sidechain and its application to 5.7 inches color STN LCD

K. Y. Han
, S. H. Yu
, B. H. Chae
, J. K. Song
, Y. K. Jang
, H. S. Yu

Samsung

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

A new polyimide containing cinnamate groups was synthesized by the reaction of substituted cinnamoyl chloride with polyimide. This polyimide having cinnamate groups is aligned by linearly polarized UV light. The optical anisotropy (Δnd) reached saturation value within about 3 minutes of irradiation (about 1000 mJ/cm²). The degree of alignment (second-rank order parameters) (S) was measured with the value of about 0.6 which is the almost same value as obtained from a rubbing method. Cells fabricated using polyimide alignment layer irradiated with linearly polarized UV light showed controlled pretilt angle (α) by irradiation conditions. This polymer was applied to 5.7 inches prototype color STN LCD.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	SID Conference Record of the International Display Research Conference
State	Published - 1997
Externally published	Yes
Event	Proceedings of the 1997 17th Annual International Display Research Conference - Toronto, Can Duration: 15 Sep 1997 → 19 Sep 1997

Cite this

@article{6579c12af82249f4a251d162df7a37df,

title = "Photoalignment of polyimide containing cinnamoyl sidechain and its application to 5.7 inches color STN LCD",

abstract = "A new polyimide containing cinnamate groups was synthesized by the reaction of substituted cinnamoyl chloride with polyimide. This polyimide having cinnamate groups is aligned by linearly polarized UV light. The optical anisotropy (Δnd) reached saturation value within about 3 minutes of irradiation (about 1000 mJ/cm2). The degree of alignment (second-rank order parameters) (S) was measured with the value of about 0.6 which is the almost same value as obtained from a rubbing method. Cells fabricated using polyimide alignment layer irradiated with linearly polarized UV light showed controlled pretilt angle (α) by irradiation conditions. This polymer was applied to 5.7 inches prototype color STN LCD.",

author = "Han, \{K. Y.\} and Yu, \{S. H.\} and Chae, \{B. H.\} and Song, \{J. K.\} and Jang, \{Y. K.\} and Yu, \{H. S.\}",

year = "1997",

language = "English",

pages = "81--84",

journal = "SID Conference Record of the International Display Research Conference",

issn = "1083-1312",

publisher = "Society for Information Display",

note = "Proceedings of the 1997 17th Annual International Display Research Conference ; Conference date: 15-09-1997 Through 19-09-1997",

}

TY - JOUR

T1 - Photoalignment of polyimide containing cinnamoyl sidechain and its application to 5.7 inches color STN LCD

AU - Han, K. Y.

AU - Yu, S. H.

AU - Chae, B. H.

AU - Song, J. K.

AU - Jang, Y. K.

AU - Yu, H. S.

PY - 1997

Y1 - 1997

N2 - A new polyimide containing cinnamate groups was synthesized by the reaction of substituted cinnamoyl chloride with polyimide. This polyimide having cinnamate groups is aligned by linearly polarized UV light. The optical anisotropy (Δnd) reached saturation value within about 3 minutes of irradiation (about 1000 mJ/cm2). The degree of alignment (second-rank order parameters) (S) was measured with the value of about 0.6 which is the almost same value as obtained from a rubbing method. Cells fabricated using polyimide alignment layer irradiated with linearly polarized UV light showed controlled pretilt angle (α) by irradiation conditions. This polymer was applied to 5.7 inches prototype color STN LCD.

AB - A new polyimide containing cinnamate groups was synthesized by the reaction of substituted cinnamoyl chloride with polyimide. This polyimide having cinnamate groups is aligned by linearly polarized UV light. The optical anisotropy (Δnd) reached saturation value within about 3 minutes of irradiation (about 1000 mJ/cm2). The degree of alignment (second-rank order parameters) (S) was measured with the value of about 0.6 which is the almost same value as obtained from a rubbing method. Cells fabricated using polyimide alignment layer irradiated with linearly polarized UV light showed controlled pretilt angle (α) by irradiation conditions. This polymer was applied to 5.7 inches prototype color STN LCD.

UR - https://www.scopus.com/pages/publications/0031383261

M3 - Conference article

AN - SCOPUS:0031383261

SN - 1083-1312

SP - 81

EP - 84

JO - SID Conference Record of the International Display Research Conference

JF - SID Conference Record of the International Display Research Conference

T2 - Proceedings of the 1997 17th Annual International Display Research Conference

Y2 - 15 September 1997 through 19 September 1997

ER -

Photoalignment of polyimide containing cinnamoyl sidechain and its application to 5.7 inches color STN LCD

Abstract

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