P‐45: Efficient & Selective Rework of LC Alignment Layer with Photo‐Spacer, Protrusion, and Resin Black Matrix on CF & TFT | Zendy

Jeong Tonky | Zendy; Kim Mel | Zendy; Lee Eric | Zendy; Kim Paul | Zendy; Yeo J. B. | Zendy; Lee S. H. | Zendy; Chen Liehlin | Zendy; Chung Kevin | Zendy; Tseng L. H. | Zendy; Huang Joseph K. | Zendy

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P‐45: Efficient & Selective Rework of LC Alignment Layer with Photo‐Spacer, Protrusion, and Resin Black Matrix on CF & TFT

Author(s) -

Jeong Tonky,

Kim Mel,

Lee Eric,

Kim Paul,

Yeo J. B.,

Lee S. H.,

Chen Liehlin,

Chung Kevin,

Tseng L. H.,

Huang Joseph K.

Publication year - 2003

Publication title -

sid symposium digest of technical papers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.351

H-Index - 44

eISSN - 2168-0159

pISSN - 0097-966X

DOI - 10.1889/1.1832288

Subject(s) - rework , liquid crystal display , materials science , layer (electronics) , matrix (chemical analysis) , composite material , thin film transistor , optoelectronics , chemistry

We have developed the new process about PI Poly Imide: Liquid crystal alignment layer of TFT LCD rework with photo‐spacer and/or protrusion and/or resin black matrix for mass production using new chemical & EPD technology. In case of previous PI rework using O 2 / SF 6 , it is seldom possible to remove selectively PI layer without a little damage to photo‐spacer and/or protrusion and/or resin BM including device characteristics such as I‐V curve of TFT and CIE color coordinates. But the present O 2 / N 2 chemical let the PI layer rework be embodied with a little damage to the photo‐spacer and/or protrusion and/or resin Black Matrix replaced for previous Cr metal BM. Therefore, it is possible for TFT LCD makers to cut‐down drastically the failure‐cost in case of using photo‐spacer narrow & constant cell gap and/or protrusion Vertical Alignment mode‐multi vertical alignment for wide viewing angle and/or resin BM for the 5 th generation mother glass size TFT‐LCD.

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