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US 6,445,434 B1Granted
Liquid crystal display device
AssigneeKabushiki Kaisha Toshiba
InventorsKohki Takato, Seiichi Nakamura
Life of this patent
Estimating the term…
Abstract
A liquid crystal display device including a liquid crystal layer, an alignment layer orientating the liquid crystal layer, and a driving circuit that drives the liquid crystal layer. The alignment layer is divided into a plurality of specified regions, each having a recognizable size. The orientation direction of adjacent regions is different from one another. This makes it difficult to resolve a displayed image from directions other than that from the front of the display, and instead a fixed pattern is seen when the display is viewed from directions other than that from the front. This fixed pattern can be chosen as desired and can be, e.g., a figure or a trade name of a product.
Claims35
A liquid crystal display comprising:
- a liquid crystal layer;
- and
- alignment layers sandwiching said liquid crystal layer, comprising an alignment layer surface divided into a plurality of regions, each of said plurality of regions including a plurality of pixel units, with orientations of said alignment layers in adjacent said regions being different,
- wherein at least one of said plurality of regions is configured to display a fixed image regardless of any condition of the liquid crystal layer.
1 more element
A liquid crystal display comprising:
- a liquid crystal layer;
- and
- alignment layers sandwiching said liquid crystal layer, said alignment layers comprising surfaces divided into a plurality of regions having different orientation directions, a first ratio of areas of two regions of said plurality of regions in a first pixel being different from a second ratio of areas of said two regions of said plurality of regions in a second pixel,
- wherein at least one of said plurality of regions is configured to display a fixed image regardless of any condition of the liquid crystal layer.
1 more element
A liquid crystal display comprising:
- a liquid crystal layer;
- alignment layers sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction,
- wherein said alignment layers comprise a plurality of regions having different orientations, and
- wherein at least one of said plurality of regions is configured to display a fixed image regardless of any condition of the liquid crystal layer.
4 more elements
A liquid crystal display comprising:
- a liquid crystal layer;
- alignment layers sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a first direction normal to said liquid crystal layer and a fixed image independent of said driving circuit is displayed at a second direction,
- wherein said alignment layers comprise a plurality of regions having different orientations, and
- wherein at least one of said plurality of regions is configured to display a fixed image regardless of any condition of the liquid crystal layer.
4 more elements
A liquid crystal display comprising:
- a first liquid crystal layer displaying an image determined by a driving circuit;
- a second liquid crystal layer;
- and
- alignment layers sandwiching said second liquid crystal layer, said alignment layer including regions displaying a visible figure, with orientations of adjacent of said regions being different.
1 more element
A liquid crystal display comprising:
- a liquid crystal layer;
- a pair of substrates sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction, and said fixed image is formed on a surface of said liquid crystal layer.
2 more elements
A terminal device comprising:
- a liquid crystal layer;
- a pair of substrates sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction, and said fixed image is formed on a surface of said liquid crystal layer.
2 more elements
A portable terminal device comprising:
- a liquid crystal layer;
- a pair of substrates sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction, and said fixed image is formed on a surface of said liquid crystal layer.
2 more elements
A method of forming a liquid crystal display device, comprising:
- orienting a first portion of an alignment layer on a first substrate in a first direction;
- orienting a second portion of said alignment layer on said first substrate in a second direction;
- and
- sandwiching a liquid crystal layer between said first substrate and a second substrate;
- wherein said first portion of said alignment layer is configured for a fixed image regardless of any condition of the liquid crystal layer.
2 more elements
A method of forming a liquid crystal display device, comprising:
- orienting a first portion of an alignment layer on a first substrate in a first direction;
- orienting a second portion of said alignment layer on said first substrate in a second direction;
- and
- sandwiching a liquid crystal layer between said first substrate and a second substrate;
- wherein said first portion of said alignment layer is configured to display a fixed logo regardless of any condition of the liquid crystal layer.
2 more elements
A liquid crystal display comprising:
- a liquid crystal layer;
- and
- means for sandwiching said liquid crystal layer, comprising at least two portions, each of said two portions comprising a different means for aligning an orientation of said liquid crystal layer sandwiched by said respective portion,
- wherein at least one of said plurality of regions is configured to display a fixed image regardless of any condition of the liquid crystal layer.
1 more element
A liquid crystal display comprising:
- a liquid crystal layer;
- alignment layers sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction;
- wherein said fixed image comprises a letter.
3 more elements
A liquid crystal display comprising:
- a liquid crystal layer;
- alignment layers sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction;
- wherein said fixed image comprises a visible figure.
3 more elements
A liquid crystal display comprising:
- a liquid crystal layer;
- alignment layers sandwiching said liquid crystal layer;
- and
- a driving circuit configured to drive said liquid crystal layer,
- wherein an image formed in said liquid crystal layer by said driving circuit is displayed at a front direction and a fixed image independent of said driving circuit is displayed at an oblique direction;
- wherein said fixed image comprises a color.
3 more elements
Dependencies are inferred from the claim text.