Liquid crystal display and display method
AssigneeKabushiki Kaisha Toshiba
InventorsMasayuki Oguchi, Hiroki Iwanaga
Life of this patent
Estimating the term…
Abstract
There is provided a liquid crystal display, including a substrate and pixels arrayed on the substrate, each of the pixels including an electric field sensitive layer which includes, an N-type liquid crystal material containing a liquid crystal substance, a dichroic dye and an isotropic dye, and particles dispersed in the N-type liquid crystal material and configured to migrate in the N-type liquid crystal material by electrophoresis.
Claims20
A liquid crystal display, comprising a substrate and pixels arrayed on the substrate, each of the pixels comprising an electric field sensitive layer which comprises:
- an N-type liquid crystal material containing a liquid crystal substance, a dichroic dye and an isotropic dye;
- and
- particles dispersed in the N-type liquid crystal material and configured to migrate in the N-type liquid crystal material by electrophoresis.
A liquid crystal display, comprising a substrate and pixels arrayed on the substrate, each of the pixels comprising:
- a first electric field sensitive layer which comprises
- an N-type liquid crystal material containing a first liquid crystal substance, a first dichroic dye and a first isotropic dye, and
- first particles dispersed in the N-type liquid crystal material and configured to migrate in the N-type liquid crystal material by electrophoresis;
- and
- a second electric field sensitive layer which is adjacent to the first electric field sensitive layer and comprises
- a P-type liquid crystal material containing a second liquid crystal substance, a second dichroic dye and a second isotropic dye, and
- second particles dispersed in the P-type liquid crystal material and configured to migrate in the P-type liquid crystal material by electrophoresis.
A method of displaying an image, comprising:
- changing a state of a first electric field sensitive layer among first to third states, the first electric field sensitive layer comprising an N-type liquid crystal material which contains a first liquid crystal substance, a first dichroic dye and a first isotropic dye, and first particles dispersed in the N-type liquid crystal material and configured to migrate in the N-type liquid crystal material by electrophoresis, wherein
- the first state is a state that the first particles are gathered in an observer side region of the first electric field sensitive layer,
- the second state is a state that the first particles are gathered in a back side region of the first electric field sensitive layer which is apart from the observer side region of the first electric field sensitive layer and an alternating-current voltage is applied to the first electric field sensitive layer, and
- the third state is a state that the first particles are gathered in the back side region of the first electric field sensitive layer and no voltage is applied to the first electric field sensitive layer.
Dependencies are inferred from the claim text.