In-plane switching active matrix liquid crystal display apparatus
AssigneeNEC LCD Technologies, Ltd.
InventorHideki Ito
Life of this patent
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Abstract
In an in-plane switching active matrix LCD apparatus wherein a liquid crystal layer is sealed between a pair of transparent substrates and pectinate pixel electrodes and common electrodes are formed on the transparent substrates, a transparent continuous solid electrode that evenly covers the pixel is provided via a transparent insulating film to the bottom layers of the pixel electrodes and common electrodes, and this transparent continuous solid electrode is in an electrically floating state. Transmissivity can thereby be improved with a simple configuration.
Claims20
An in-plane switching active matrix liquid crystal display apparatus, comprising:
- a first substrate;
- a second substrate facing the first substrate;
- a liquid crystal layer provided between the first and second substrates;
- data lines and gate lines that are formed on the first substrate and that intersect in matrix fashion;
- a thin-film transistor formed on the first substrate in each of a plurality of pixel areas partitioned by the data lines and gate lines;
- a common line formed on the first substrate and used to apply a reference potential across a plurality of pixels;
- pixel electrodes and common electrodes formed in the plurality of pixel areas on the first substrate and used to generate a horizontal electric field parallel to a surface of the first substrate;
- and
- a transparent continuous solid electrode formed via a transparent insulating layer on bottom layers of the pixel electrodes and common electrodes on the first substrate.
Dependencies are inferred from the claim text.