Method and apparatus for enhancing touch sensing in a display panel

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9811223
APP PUB NO 20170024036A1
SERIAL NO

14807894

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Driving a touch-sensing-enabled active matrix LCD display panel for enhancing touch sensing by reducing parasitic capacitances is considered. In one embodiment, a plurality of driving voltages is generated. The driving voltages include a common voltage, and a first and a second gate-drive reference voltages for configuring a thin film transistor (TFT) in the panel to switch on and off, respectively. When the panel is operated in a sensing mode, the common voltage that is generated includes a pulse-train waveform. Furthermore, each of the first and the second gate-drive reference voltages is substantially time-synchronized to and includes the pulse-train waveform of the common voltage during the sensing mode. In one option, the driving voltages further include a sensing-mode source-drive voltage acting as a source-drive signal for the TFT during the sensing mode. The sensing-mode source-drive voltage is substantially time-synchronized to and includes the pulse-train waveform of the common voltage.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SOLOMON SYSTECH LIMITED6/F 3 SCIENCE PARK EAST AVENUE HONG KONG SCIENCE PARK SHATIN NEW TERRITORIES HONG KONG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Wing Chi Stephen Hong Kong, HK 29 150
Chen, Jun Hong Kong, HK 912 6715
Lee, Cheung Fai Hong Kong, HK 15 80
Lei, Yiu Sang Hong Kong, HK 9 46

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
7.5 Year Payment $3600.00 $1800.00 $900.00 May 7, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 7, 2029
Fee Large entity fee small entity fee micro entity fee
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