Biasing liquid crystal displays having capacitors and transistor

Details Biasing liquid crystal displays having capacitors and transistor Biasing liquid crystal displays having capacitors and transistor

1995-06-05

1996-06-18

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 59, 359 67, 359 68, 345 92, 257 71, 257 72, G02F 11335, G02F 11333, G09G 336

Patent

active

RE0352756

ABSTRACT:
A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering a semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on which the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge. Therefore the counter electrode of capacitors is separately formed from gate lines, and writing driving voltage can be set without taking effects of voltage change of gate lines into consideration. Shading layers comprising a plurality of color filters also cover each of the thin film transistors.

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