Manufacturing method of display device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12262623
APP PUB NO 20230006140A1
SERIAL NO

17842979

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A display device that can easily have high resolution is provided. A display device having both high display quality and high resolution is provided. A display device with high contrast is provided. A first EL film is deposited in contact with a top surface and a side surface of each of a first pixel electrode and a second pixel electrode each having a tapered shape. A first sacrificial film is formed to cover the first EL film. The first sacrificial film and the first EL film are etched to expose the second pixel electrode and form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer, and then, the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching. The first sacrificial layer is removed by wet etching.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTD398 HASE ATSUGI-SHI KANAGAWA 2430036 ?2430036

International Classification(s)

  • No Non-US Classification to display

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoyama, Tomoya Atsugi, JP 117 1408
Nakamura, Daiki Atsugi, JP 148 775
Yoshizumi, Kensuke Atsugi, JP 164 1980

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • No Patent Citation Ranking to display

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 25, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 25, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 25, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00