US 2006/0232529 A1Published application

Liquid crystal display device and production method thereof

AssigneeToshiba Matsushita Display Technology Co., Ltd.

InventorTeruyuki Midorikawa

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Abstract

Each pixel of an array substrate is provided with a reflective region and a transmittance region. A first color filter layer is provided between each pixel electrode and a gate insulating film of the array substrate. The first color filter layer of each pixel has spectral characteristics corresponding to the second color filter layer that is provided in association with the reflective region of the pixel. Each reflective region is a region where image display is enabled by light that passes through the corresponding second color filter layer and is reflected by its reflection layer. Each transmittance region is a region where image display is enabled by light that is emitted from a backlight and passes through the corresponding first color filter layer. Spectral separation by the first color filter layers and the second color filter layers enables the liquid crystal element to display an image.

Claims23

Dependent claims

A liquid crystal device comprising:

an array substrate that includes:
a first substrate,
a plurality of signal lines and scanning lines so provided on one principal surface of said first substrate that the signal lines intersect with the scanning lines,
a plurality of pixels respectively contained in regions partitioned by said signal lines and scanning lines, each pixel having a predetermined aperture area,
switching elements respectively provided in association with said pixels,
first insulating layers provided on said principal surface of said first substrate so as to cover said first substrate as well as said switching elements, and
pixel electrodes respectively provided on the first insulating layers of said pixels and electrically connected to said switching elements;
a counter substrate that is arranged in counterposition to said array substrate and includes a second substrate, and second insulating layers provided on one principal surface of said second substrate;
and
a liquid crystal layer provided between said array substrate and said counter substrate, wherein:
each first insulating layer of said array substrate has spectral characteristics for one of at least three colors comprising a first color, a second color, and a third color respectively corresponding to light's three primary colors;
and
each second insulating layer of said counter substrate faces at least a part of each respective pixel electrode of said array substrate and has spectral characteristics corresponding to those of each respective first insulating layer.

10 more elements

A method of producing a liquid crystal device comprising an array substrate, a counter substrate that is arranged in counterposition to said array substrate, and a liquid crystal layer provided between said array substrate and said counter substrate, wherein said method includes:

a step of forming said array substrate by forming switching elements on a first substrate, forming first insulating layers on said first substrate so as to cover said first substrate as well as said switching elements, each first insulating layer having spectral characteristics for one of at least three colors comprising a first color, a second color, and a third color respectively corresponding to light's three primary colors, and providing pixel electrodes respectively on said first insulating layers, said pixel electrodes electrically connected to said switching elements respectively;
and
a step of forming said counter substrate by providing second insulating layers on a second substrate at such a location that each second insulating layer faces at least a part of each respective pixel electrode of said array substrate, each second insulating layer having spectral characteristics corresponding to those of each respective first insulating layer.

Dependencies are inferred from the claim text.