LCD having an overcoat film only over a display portion and eith

Details LCD having an overcoat film only over a display portion and eith LCD having an overcoat film only over a display portion and eith

1993-10-13

1996-07-09

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 80, G02F 11333

Patent

active

055350305

ABSTRACT:
In a color liquid crystal display device, an overcoat film covering color filters on a glass substrate is formed only in a display part of a liquid crystal cell and its vicinity, and not formed in a seal part and an electrode terminal part. The cell gap near a seal member is uniform, which makes it possible to prevent lowering of display quality such as light penetration and uneven lighting, and separation between the glass substrate and seal member. Moreover, the resistance of the electrode terminal part against flaw and impact is increased, and peeling of transparent electrodes in the electrode terminal part is prevented, so that the productivity and reliability may be enhanced. Still more, if disconnection of the lead compression-bonded to the electrode terminal part should occur, the lead can be compression-bonded to the transparent electrodes. Therefore, the length of the electrode terminal part in the outward direction can be shortened, so that the device may be composed in a compact design.

REFERENCES:
patent: 4929060 (1990-05-01), Sugimoto et al.
patent: 5078475 (1992-01-01), Sekimura et al
patent: 5079214 (1992-01-01), Long et al.
patent: 5128786 (1992-07-01), Yanagisawa
patent: 5157527 (1992-10-01), De Keyzer et al.
patent: 5166125 (1992-11-01), Harrison et al.
patent: 5166126 (1992-11-01), Harrison et al.
patent: 5194976 (1993-03-01), Nakano et al.

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