Display device
View Patent ↗Disclosed is a display device including a first substrate and a second substrate bonded to the first substrate. The first substrate includes a first surface and a second surface, on which a columnar spacer is formed. The second substrate includes a third surface, on which a columnar spacer facing portion is formed, and a fourth surface. The second surface is opposed to the third surface, and at least one of a top portion of the columnar spacer and the columnar spacer facing portion has an inclined surface, which is inclined relative to the second surface or the third surface. An inclination direction of the inclined surface, when viewed from a normal direction of the first surface or the fourth surface, is parallel to or perpendicular to a first direction, which is parallel to the first surface or the fourth surface.
1. A display device, comprising:
a substrate, including a columnar spacer on an inner surface and a first polarizer on an outer surface; and
a counter substrate bonded to said substrate, including a columnar spacer facing portion on an inner surface and a second polarizer on an outer surface, wherein
a top portion of said columnar spacer or said columnar spacer facing portion has an inclined surface, and
an inclination direction of said inclined surface is parallel to or perpendicular to a direction of an absorption axis of said first polarizer, or said inclination direction of said inclined surface is parallel to or perpendicular to a direction of an absorption axis of said second polarizer, as viewed from a normal direction to a display surface of said substrate.
2. The display device according to claim 1 , wherein
said direction of the absorption axis of said first polarizer is perpendicular to said direction of the absorption axis of said second polarizer.
3. The display device according to claim 1 , wherein
said inclined surface is formed in a stepped shape.
4. The display device according to claim 1 , wherein
said inclined surface is curved.
5. The display device according to claim 1 , wherein
at least one of the top portion of said columnar spacer and said columnar spacer facing portion has a first inclined surface and a second inclined surface within each unit of site where said columnar spacer connects to touch/abut upon said columnar spacer facing portion; and
an inclination direction of said second inclined surface is opposite to an inclination direction of said first inclined surface.
6. The display device according to claim 1 , wherein
at least one of said top portion of said columnar spacer and said columnar spacer facing portion is composed of a combination of two or more kinds, wherein inclination directions of inclined surfaces of said two or more kinds, where said columnar spacer connects to touch/abut upon said columnar spacer facing portion, are different by 180 degrees.
7. The display device according to claim 6 , wherein
at least one of said top portion of said columnar spacer and said columnar spacer facing portion is composed of a combination in which an inclination direction of an inclined surface, where said columnar spacer connects to touch/abut upon said columnar spacer facing portion, is different by 180 degrees at every single site periodically.
8. The display device according to claim 6 , wherein
at least one of said top portion of said columnar spacer and said columnar spacer facing portion is composed of a line-symmetric combination in which inclination directions of inclined surfaces, where said columnar spacer connects to touch/abut upon said columnar spacer facing portion, are different by 180 degrees between two areas on two sides of a line of a central of a central part of said display surface.
9. A method for manufacturing a substrate, which is bonded to a counter substrate, while sandwiching a liquid crystal between the substrate and the counter substrate, comprising:
forming a columnar spacer on an inner surface of said substrate;
forming a first polarizer on an outer surface of said substrate;
forming a columnar facing portion on an inner surface of said counter substrate; and
forming a second polarizer on an outer surface of said counter substrate, wherein
a top portion of said columnar spacer or said columnar facing portion has all inclined surface, and
an inclination direction of said inclined surface is parallel to or perpendicular to a direction of an absorption axis of said first polarizer, or said inclination direction of said inclined surface is parallel to or perpendicular to a direction of an absorption axis of said second polarizer.