Liquid crystal display having a plurality of pixels with switchi

Details Liquid crystal display having a plurality of pixels with switchi Liquid crystal display having a plurality of pixels with switchi

1991-03-21

1993-05-04

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 54, 359 87, 359 88, 257347, G02F 113

Patent

active

052086909

ABSTRACT:
Two contact holes are formed through an insulating layer at its portion corresponding to a drain of a switching thin film transistor and a height of a wall portion between the two contact holes is selected to be smaller than that of a surrounding insulating layer, whereby the transparent electrode is connected to the drain via the two contact holes with excellent coverage. Thus, a connection between the switching transistor and the transparent pixel electrode in the liquid crystal display device can be effected with improved reliability.

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