Patent US6236382B1 successfully refreshed from Google Patents.
US6236382B1
Expired / Lapsed
US
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Light emitting diode display unit
Assignee: Toyoda Gosei Co Ltd
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Filing: 1998-05-18
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Granted: 2001-05-22
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Expires: 2018-05-18
Abstract
Abstract An LED display unit disclosed. A plurality of pixels are provided on an insulation substrate. Each pixel comprises vertically arranged green, red, and blue LEDs, wherein the green LED is above the red LED, and the blue LED is below the red LED. Each pixel is positioned in a corresponding one of cavities defined in a predetermined pattern on the insulation substrate, and each cavity provides a light refletion surface on the inner wall.
Inventors
- 👤 Shingo Kawakami
- 👤 Jun ichi Mizutani
- 👤 Hideki Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:17
CPC Classifications
H; H10; H10H; H10H29/00; H10H29/10; H10H29/14; H10H29/142; G; G09; G09F; G09F9/00; G09F9/30; G09F9/33; H10H20/00; H10H20/80; H10H20/81; H10H20/819; H10H20/822; H10H20/824; H10H20/825; H10H20/85; H10H20/855; H10W; H10W90/00; H10W72/00; H10W72/851; H10W72/874; H10W72/884
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A light emitting diode display unit comprising: an insulation substrate provided with a plurality of cavities defined in a predetermined pattern on one surface thereof, a reflection surface being formed on an inner wall in each of said plurality of cavities; and a plurality of light emitting diode (LED) pixels positioned in said plurality of cavities to display a predetermined image; each of said plurality of LED pixels, comprising: a green LED, and red LED, and a blue LED vertically arranged in a row, such that said green LED is above said red LED, and said blue LED is below said red LED, wherein each of said plurality of cavities comprises first to third cavities for green, red and blue LEDs, an area of said first cavity for said green LED and an area of said third cavity for said blue LED are larger than an area of said second cavity for said red LED.
Claim 2
Dependent Claim
155 words
A light emitting diode display unit comprising: an insulation substrate provided with a plurality of cavities defined in a predetermined pattern on one surface thereof, a reflection surface being formed on an inner wall in each of said plurality of cavities; and a plurality of light emitting diode (LED) pixels positioned in said plurality of cavities to display a predetermined image; each of said plurality of LED pixels, comprising: a green LED, and red LED, and a blue LED vertically arranged in a row, such that said green LED is above said red LED, and said blue LED is below said red LED, wherein each of said plurality of cavities comprises first to third cavities for green, red and blue LEDs, an area of said first cavity for said green LED and an area of said third cavity for said blue LED are larger than an area of said second cavity for said red LED.
Claim 3
Dependent Claim
148 words
A light emitting diode display unit comprising: an insulation substrate provided with a plurality of cavities defined in a predetermined pattern on one surface thereof, a reflection surface being formed on an inner wall in each of said plurality of cavities; and a plurality of light emitting diode (LED) pixels positioned in said plurality of cavities to display a predetermined image; each of said plurality of LED pixels, comprising: a green LED, a red LED, and a blue LED arranged in a row, such that said red LED is between said blue LED, and said green LED; wherein each of said plurality of cavities comprises first to third cavities for green, red and blue LEDs, an area of said first cavity for said green LED and an area of said third cavity for said blue LED being larger than an area of said cavity for said red LED.
Claim 4
Dependent Claim
148 words
A light emitting diode display unit comprising: an insulation substrate provided with a plurality of cavities defined in a predetermined pattern on one surface thereof, a reflection surface being formed on an inner wall in each of said plurality of cavities; and a plurality of light emitting diode (LED) pixels positioned in said plurality of cavities to display a predetermined image; each of said plurality of LED pixels, comprising: a green LED, a red LED, and a blue LED arranged in a row, such that said red LED is between said blue LED, and said green LED; wherein each of said plurality of cavities comprises first to third cavities for green, red and blue LEDs, an area of said first cavity for said green LED and an area of said third cavity for said blue LED being larger than an area of said cavity for said red LED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-21 | 2004-11-20 | 2005-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-21 | 2008-11-20 | 2009-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-21 | 2012-11-20 | 2013-05-22 | $7700.00 | Window Closed / Lapsed |