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US 11,456,288 B2Granted
Image display element
AssigneeSharp Fukuyama Laser Co., Ltd.
InventorsHiroaki Onuma, Katsuji Iguchi, Koji Takahashi, Hidenori Kawanishi
Life of this patent
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Abstract
An image display element includes micro light emitting elements arranged in an array, a drive circuit substrate that includes a drive circuit for supplying a current to the micro light emitting elements to cause light to be emitted, and an antenna arranged on a light emitting surface of each of the micro light emitting elements, in which the antenna includes isolated convex portions.
Claims20
An image display element comprising:
- a drive circuit substrate that includes a drive circuit for supplying a current to micro light emitting elements to cause light to be emitted;
- the micro light emitting elements arranged in an array on the drive circuit substrate;
- and
- an antenna arranged on a light emitting surface of each of the micro light emitting elements, wherein
- the antenna includes convex portions in a periodic pattern, and
- the convex portions include a semiconductor or a dielectric, or are covered with a resin.
3 more elements
An image display element comprising:
- a drive circuit substrate that includes a drive circuit for supplying a current to micro light emitting elements to cause light to be emitted;
- the micro light emitting elements arranged in an array on the drive circuit substrate;
- and
- an antenna arranged on a light emitting surface of each of the micro light emitting elements, wherein
- the antenna includes convex portions in a periodic pattern,
- the micro light emitting elements include a first micro light emitting element that emits light of a first light emitting wavelength, and a second micro light emitting element that emits light of a second light emitting wavelength longer than the first light emitting wavelength, and
- a period of a periodic pattern included in an antenna formed on a light emitting surface of the first micro light emitting element is shorter than a period of a periodic pattern included in an antenna formed on a light emitting surface of the second micro light emitting element.
4 more elements
An image display element comprising:
- a drive circuit substrate that includes a drive circuit for supplying a current to micro light emitting elements to cause light to be emitted;
- the micro light emitting elements arranged in an array on the drive circuit substrate;
- and
- an antenna arranged on a light emitting surface of each of the micro light emitting elements, wherein
- the antenna includes convex portions in a periodic pattern,
- the image display element further comprises an embedding layer covering the convex portions, and a cap layer on the embedding layer, and
- a refractive index of the cap layer is larger than a refractive index of the embedding layer.
4 more elements
Dependencies are inferred from the claim text.