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US 7,453,197 B2Granted
Image display apparatus with warped shape
AssigneeCanon Kabushiki Kaisha
InventorTomokazu Andoh
Life of this patent
Estimating the term…
Abstract
A display apparatus having a first plate-shaped member having plural electron-emitting devices which are dispersively distributed and a second plate-shaped member having a plurality of light-emitting members arranged on a surface which faces the first plate-shaped member in correspondence to the plural electron-emitting devices, in which in at least either the first plate-shaped member or the second plate-shaped member, directions of normal lines extending from the plural electron-emitting devices or the plural light-emitting members are distributed in a tendency. A pitch of arranging the adjacent electron-emitting devices and a pitch of arranging the light-emitting members corresponding to the adjacent electron-emitting devices are different in accordance with the distribution of the normal-line directions.
Claims4
A display apparatus comprising:
- a first plate-shaped member having a plurality of electron-emitting devices which are dispersively distributed;
- and
- a second plate-shaped member having a plurality of light-emitting members arranged on a surface which faces said first plate-shaped member in correspondence to said plurality of electron-emitting devices,
- in which, in at least either said first plate-shaped member or said second plate-shaped member, directions of normal lines extending from said plurality of electron-emitting devices or said plurality of light-emitting members are distributed in a tendency,
- wherein a pitch between at least one of the electron-emitting devices and an electron-emitting device adjacent to that at least one electron-emitting device and a pitch between a light-emitting member corresponding to the at least one electron-emitting device and a light-emitting member adjacent to the at least one light-emitting member are different so that an electron emitted from each of said plurality of electron-emitting devices is irradiated to each of said plurality of corresponding light-emitting members,
- wherein each of said first plate-shaped member and said second plate-shaped member has a convex shape having a radius of curvature R which is projected in the direction directing from said second plate-shaped member to said first plate-shaped member,
- a neutral plane of said first plate-shaped member and a neutral plane of said second plate-shaped member are located at a distance T, and
- the pitch of arranging said electron-emitting devices is 1+T/R times as large as the pitch of arranging said light-emitting members.
5 more elements
A display apparatus comprising:
- a first plate-shaped member having a plurality of electron-emitting devices which are dispersively distributed;
- and
- a second plate-shaped member having a plurality of light-emitting members arranged on a surface which faces said first plate-shaped member in correspondence to said plurality of electron-emitting devices,
- in which, in at least either said first plate-shaped member or said second plate-shaped member, directions of normal lines extending from said plurality of electron-emitting devices or said plurality of light-emitting members are distributed in a tendency,
- wherein a pitch between at least one of the electron-emitting devices and an electron-emitting device adjacent to that at least one electron-emitting device and a pitch between a light-emitting member corresponding to the at least one electron-emitting device and a light-emitting member adjacent to the at least one light-emitting member are different so that an electron emitted from each of said plurality of electron-emitting devices is irradiated to each of said plurality of corresponding light-emitting members,
- wherein each of said first plate-shaped member and said second plate-shaped member has a convex shape having a radius of curvature R which is projected in the direction directing from said first plate-shaped member to said second plate-shaped member,
- a neutral plane of said first plate-shaped member and a neutral plane of said second plate-shaped member are located at a distance T, and
- the pitch of arranging said electron-emitting devices is 1−T/R times as large as the pitch of arranging said light-emitting members.
5 more elements
A display apparatus comprising:
- a first plate-shaped member having a plurality of electron-emitting devices which are dispersively distributed;
- and
- a second plate-shaped member having a plurality of light-emitting members arranged on a surface which faces said first plate-shaped member in correspondence to said plurality of electron-emitting devices,
- in which, in at least either said first plate-shaped member or said second plate-shaped member, directions of normal lines extending from said plurality of electron-emitting devices or said plurality of light-emitting members are distributed in a tendency,
- wherein a pitch between at least one of the electron-emitting devices and an electron-emitting device adjacent to that at least one electron-emitting device and a pitch between a light-emitting member corresponding to the at least one electron-emitting device and a light-emitting member adjacent to the at least one light-emitting member are different so that an electron emitted from each of said plurality of electron-emitting devices is irradiated to each of said plurality of corresponding light-emitting members,
- wherein each of said first plate-shaped member and said second plate-shaped member has n regions each having a convex shape which is projected in the direction directing from said second plate-shaped member to said first-plate shaped member, n being an integer having a value of 2 or more such that n2,
- a radius of curvature of each of said plurality of regions is equal to Rn,
- a distance between a neutral plane of said first plate-shaped member and a neutral plane of said second plate-shaped member is equal to T, and
- the pitch of arranging said electron-emitting devices in each of said plurality of regions is 1+T/Rn times as large as the pitch of arranging said light-emitting-members.
6 more elements
A display apparatus comprising:
- a first plate-shaped member having a plurality of electron-emitting devices which are dispersively distributed;
- and
- a second plate-shaped member having a plurality of light-emitting members arranged on a surface which faces said first plate-shaped member in correspondence to said plurality of electron-emitting devices,
- in which, in at least either said first plate-shaped member or said second plate-shaped member, directions of normal lines extending from said plurality of electron-emitting devices or said plurality of light-emitting members are distributed in a tendency,
- wherein a pitch between at least one of the electron-emitting devices and an electron-emitting device adjacent to that at least one electron-emitting device and a pitch between a light-emitting member corresponding to the at least one electron-emitting device and a light-emitting member adjacent to the at least one light-emitting member are different so that an electron emitted from each of said plurality of electron-emitting devices is irradiated to each of said plurality of corresponding light-emitting members,
- wherein each of said first plate-shaped member and said second plate-shaped member has n regions each having a convex shape which is projected in the direction directing from said first plate-shaped member to said second plate-shaped member, n being an integer having a value of 2 or more such that n≧2,
- a radius of curvature of each of said plurality of regions is equal to Rn,
- a distance between a neutral plane of said first plate-shaped member and a neutral plane of said second plate-shaped member is equal to T, and
- the pitch of arranging said electron-emitting devices in each of said plurality of regions is 1−T/Rn times as large as the pitch of arranging said light-emitting members.
6 more elements
Dependencies are inferred from the claim text.