Image processing device, display apparatus, and image processing method for display panel including front and rear liquid crystal cells

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11217189
APP PUB NO 20210027728A1
SERIAL NO

16966137

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A decrease in a color gamut in a low gradation region is reduced to improve image quality in a liquid crystal panel. Therefore, a color image signal for a liquid crystal display panel in which a display image is generated by light passing through a rear liquid crystal cell and a front liquid crystal cell is converted into a black-and-white image signal by using a predetermined coefficient. Then, the black-and-white image signal thus obtained is subjected to gradation value conversion so as to become a signal for performing gradation expression in a gradation region set as a gradation range in which a color gamut greatly changes in a case where the front liquid crystal cell is driven by the color image signal, and thus a rear image signal serving as the black-and-white image signal for the rear liquid crystal cell is generated. Further, the color image signal is subjected to arithmetic processing by using the rear image signal, and thus a front image signal serving as the color image signal for the front liquid crystal cell is generated.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SONY CORPORATION OF JAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimura, Hiroaki Kanagawa, JP 124 998

Cited Art Landscape

Load Citation

Patent Citation Ranking

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 Jul 4, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 4, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 4, 2033
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