LIQUID CRYSTAL DISPLAY DEVICE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20120229036A1
SERIAL NO

13410324

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The liquid crystal display device is a display device, having; a display panel; a backlight having light emitting diode columns; and an LED driver IC for driving the light emitting diode columns, wherein the light emitting diode columns are formed of a number of light emitting diodes, the LED driver IC controls the voltage applied to said light emitting diode columns so that the current that flows through a light emitting diode column and is inputted into the LED driver IC is a predetermined constant current, the display device further has a current amplifying unit for amplifying the reference current inputted into the LED driver IC and allowing the amplified reference current to flow through a light emitting diode column, and the current inputted into the LED driver IC and the current amplified by the current amplifying unit flow through a light emitting diode column.

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Patent Owner(s)

Patent OwnerAddress
HITACHI DISPLAYS LTDCHIBA COUNTY JAPAN CHIBA

International Classification(s)

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  • 2012 Application Filing Year
  • H05B Class
  • 2647 Applications Filed
  • 2118 Patents Issued To-Date
  • 80.02 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2012201320142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
TAKAHASHI, Satoshi Isumi, JP 385 4847
Tanaka, Satoshi Chiba, JP 959 10603

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Patent Citation Ranking

  • 2 Citation Count
  • H05B Class
  • 6.86 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6358415546321366243501 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650

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