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Quantum Dot White LEDs Achieve Record Efficiency

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    Quantum Dot White LEDs Achieve Record Efficiency

    https://www.ecnmag.com/news/2018/07/...rd-efficiency?
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    #2
    Re: Quantum Dot White LEDs Achieve Record Efficiency

    Very interesting
    I wonder the cost of these new LEDs will be
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    Comment


      #3
      Re: Quantum Dot White LEDs Achieve Record Efficiency

      Soon we may be seeing smaller SAMSUNG TVs with the QLED technology. As for now it is only in their high end TVs that the QLED technology is available. As for me, at the present time when I compared the picture quality, texture, contrast ratio, I have found the OLED by LG Electronics to be far superior, but that is just my opinion. This article is very good reading though. Thanks budm for the share.

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