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US 2005/0030263 A1Published application
Image display apparatus, driving circuit for image display apparatus, and image display method
AssigneeCanon Kabushiki Kaisha
InventorTatsuro Yamazaki
Life of this patent
Estimating the term…
Abstract
An image display apparatus includes an image display member having a plurality of light-emitting portions, electron-emitting devices for emitting electrons and causing the light-emitting portions to emit light in accordance with an input image signal, and an adjustment unit for differentially adjusting the light emitting brightness for the plurality of light-emitting portions at different positions of the image display member, when an input image signal designates the same brightness for the plurality of light-emitting portions.
Claims40
An image display apparatus comprising:
- an image display member having a plurality of light-emitting portions, each of which emits light;
- adjustment means for adjusting a light emitting brightness of the plurality of light-emitting portions at different positions of the image display member, so that a light emitting brightness at a first position of the light display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of light-emitting portions at the different positions;
- and
- a plurality of first means arranged on a substrate, each of said plurality of first means causing a respective one of the light-emitting portions to emit light in accordance with an adjustment by said adjustment means.
1 more element
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A method of driving an image display apparatus having an image display member including a plurality of light-emitting portions, each of which emits light, and a plurality of first means arranged on a substrate, each causing a respective one of the plurality of light-emitting portions to emit light, comprising the step of:
- adjusting a light emission brightness of the plurality of light-emitting portions at different positions of the image display member, so that a light emitting brightness at a first position of the image display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of the light-emitting portions at the different positions;
- and
- driving the plurality of first means so that each of the light-emitting portions emits light in accordance with an adjustment in said adjusting step.
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A television comprising:
- an image display apparatus comprising:
- an image display member having a plurality of light-emitting portions, each of which emits light;
- adjustment means for adjusting a light emitting brightness of the plurality of light-emitting portions at different positions of the image display member, so that the light emitting brightness at a first position of the image display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of light-emitting portions at the different positions;
- and
- a plurality of first means arranged on a substrate, each of the plurality of first means causing a respective one of the light-emitting portions to emit light in accordance with an adjustment by said adjustment means;
- and
- an image signal input unit.
4 more elements
An apparatus comprising:
- a plurality of light-emitting portions arranged in a two-dimensional arrangement in an image display area, for emitting light;
- a plurality of devices arranged on a substrate, in correspondence with each of said plurality of light emitting portions, for causing emission of light from each of said plurality of light-emitting portions;
- and
- a circuit for supplying generated signals based on input signals to said plurality of devices,
- wherein said circuit supplies the generated signals based on signals which are given by multiplying the input signals by different coefficients, to said plurality of devices, such that the brightness of light emitted from the light-emitting portions of the image display area decreases in a direction toward the periphery of the image display area from the center of the image display area.
2 more elements
An apparatus comprising:
- a plurality of light-emitting portions arranged on a substrate in a two-dimensional arrangement in an image display area, for emitting light;
- a plurality of devices arranged in correspondence with each of said plurality of light-emitting portions, for causing emission of light from each of said plurality of light emitting portions;
- and
- a circuit for supplying generated signals based on input signals to said plurality of devices,
- wherein said circuit supplies the generated signals based on signals which are given by multiplying the input signals by different coefficients, to said plurality of devices, such that the brightness of light emitted from the light-emitting portions of a portion near the center of the image display area is higher than the brightness of a portion near the periphery of the image display area.
2 more elements
An image display apparatus comprising:
- an image display member having a plurality of light-emitting portions, each of which emits light;
- an adjustment circuit configured to adjust a light emitting brightness of the plurality of light-emitting portions at different positions of the image display member, so that a light emitting brightness at a first position of the image display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of light emitting portions at the different positions;
- and
- a plurality of first devices arranged on a substrate, each of said plurality of first devices causing a respective one of the light-emitting portions to emit light in accordance with an adjustment by said adjustment circuit.
1 more element
A method of driving an image display apparatus having an image display member including a plurality of light-emitting portions and a plurality of first devices arranged on a substrate, each of the plurality of first devices causing a respective one of the plurality of light-emitting portions to emit light, the method comprising the steps of:
- adjusting a light emission brightness of the plurality of light-emitting portions at different positions of the image display member, so that a light emitting brightness at a first position of the image display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of light-emitting portions at the different positions, and
- driving the plurality of first devices so that each of the light-emitting portions emits light in accordance with an adjustment in said adjusting step.
A television comprising:
- an image display apparatus comprising:
- an image display member having a plurality of light-emitting portions, each of which emits light;
- an adjustment circuit configured to adjust a light emitting brightness of the plurality of light-emitting portions at different positions of the image display member, so that the light emitting brightness at a first position of the image display member is different from a light emitting brightness at a second position different from the first position of the image display member, in a case where an input image signal designates the same brightness for the plurality of light-emitting portions at the different positions;
- a plurality of first devices arranged on a substrate, each of the plurality of first devices causing a respective one of the light-emitting portions to emit light in accordance with an adjustment by said adjustment circuit;
- and
- an image signal input unit.
3 more elements
Dependencies are inferred from the claim text.