Liquid crystal display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakeshi Nishi, Tetsuji Ishitani, Daisuke Kubota
Life of this patent
Estimating the term…
Abstract
[Problem] In the present invention, it is an object to improve display quality by improving response speed of a liquid crystal element in a liquid crystal display device, in particular, response speed in the case of falling. [Means for Solving the Problems] In the present invention, it is characterized that a liquid crystal layer is divided into plural regions (domains) substantially by mixing a chemical compound including a liquid crystal skeleton in a liquid crystal layer existing liquid crystal molecules as a technique to improve response speed of a liquid crystal element in a liquid crystal display device for solving the above problem.
Claims24
A liquid crystal display device comprising:
- a first substrate and a second substrate, which are opposed to each other;
- a first electrode and a second electrode, which are over the first substrate;
- a projection between the first substrate and the second substrate;
- and
- a liquid crystal layer between the first electrode and the second substrate and between the second electrode and the second substrate,
- wherein a first portion of the projection is closer to the second substrate than the first substrate,
- wherein a second portion of the projection is closer to the first substrate than the second substrate,
- wherein the liquid crystal layer includes a liquid crystal molecule and a compound having a liquid crystal skeleton, and
- wherein the liquid crystal layer includes a plurality of domain regions.
A liquid crystal display device comprising:
- a first substrate and a second substrate, which are opposed to each other;
- a first electrode and a second electrode, which are over the first substrate;
- a projection between the first substrate and the second substrate;
- and
- a liquid crystal layer between the first electrode and the second substrate and between the second electrode and the second substrate,
- wherein a first portion of the projection is closer to the second substrate than the first substrate,
- wherein a second portion of the projection is closer to the first substrate than the second substrate,
- wherein the liquid crystal layer includes a liquid crystal molecule and a compound having a liquid crystal skeleton,
- wherein the liquid crystal layer includes a plurality of domain regions, and
- wherein a part of the liquid crystal layer is provided between the projection and the second substrate.
A liquid crystal display device comprising:
- a first substrate and a second substrate, which are opposed to each other;
- a first electrode and a second electrode, which are over the first substrate;
- a projection between the first substrate and the second substrate;
- a liquid crystal layer between the first electrode and the second substrate and between the second electrode and the second substrate, and
- an active element electrically connected to the first electrode,
- wherein a first portion of the projection is closer to the second substrate than the first substrate,
- wherein a second portion of the projection is closer to the first substrate than the second substrate,
- wherein the liquid crystal layer includes a liquid crystal molecule and a compound having a liquid crystal skeleton, and
- wherein the liquid crystal layer includes a plurality of domain regions.
Dependencies are inferred from the claim text.