Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1997-04-30
2000-03-14
Font, Frank G.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
349 42, 349 43, 349139, 349 38, 359 67, 359339F, 359 54, G02F 1136, G02F 11343, G02F 11345
Patent
active
060380047
ABSTRACT:
An active matrix liquid crystal display for projection system comprises a light shielding layer 12 arranged between a layer 13 including thin film transistors and a first substrate 11 for shielding an injection light toward each of the thin transistors, said light shielding layer 12 having a plurality of openings through which each of the pixel electrodes 22 is exposed against the injection light. The light shielding layer 12 is preferably made of metal and is connected to an electric source. A level of voltage applied on the data lines is adverse to that applied on the light shielding layer with respect to polarity of the applied voltage.
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T. Koseki et al., Display Manufacturing Technology Conference, pp. 107-109 (1995).
Inoue Kazuo
Izuchi Masumi
Kawamura Tetsuya
Nakamura Mika
Nanno Yutaka
Font Frank G.
Matsushita Electric - Industrial Co., Ltd.
Punnoose Roy M.
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