Quantum Dot OLED panels proving tricky for Samsung.

QD-OLED - nobody said it was going to be easy!

by Andy Bassett Jun 11, 2019 at 1:54 PM

  • Combining the best features of Quantum Dot LED and OLED technologies is seen by some in the industry as one of the next big steps forward in TV panel design. However, Samsung Display is currently experiencing problems as it tries to refine the manufacturing process.
    Samsung has been pursuing the development of what it’s calling Quantum-Dot OLED since 2018 and it’s certainly seen as a technology which could move TV displays into the next generation.

    Samsung Display has already announced a few wrinkles in their timescales and now TheElec, a Korean based electronics industry news outlet, has quoted unnamed sources who state there are further hold-ups which continue to frustrate the electronics giant.

    The anonymous industry commentator said, "Samsung is apparently struggling with the product concept, and the designs for the materials deposition equipment is now undergoing change.

    It now looks like Canon Tokki, the Japanese manufacturer of the specialised material deposition equipment that makes OLED displays, is having to redesign elements of this equipment which means it will be installed in the first quarter of 2020 instead of the planned fourth quarter of 2019. Clearly, production timelines will have to be adjusted and that’s assuming there are no more hitches.

    In pursuing QD-OLED, Samsung is hoping that the Quantum Dot approach which uses semiconductor nanocrystals to deliver vibrant, natural colours and high brightness will combine with the rich contrast and deep blacks that the self-emitting OLED technology enables in order to produce a ‘best of both worlds’ image experience.

    However, the report indicates that one of the main concerns about OLED hasn’t fully been addressed and that is the question of ‘burn-in.’ Initially one of the reasons that Samsung chose not to pursue OLED as a primary TV panel technology, burn-in occurs when a persistent part of the screen, such as a static channel logo, remains visible no matter what else is being viewed.’ Generally speaking, this situation can be managed through sensible viewing habits and inbuilt countermeasures but, ironically, it still seems to be a problem that persists.

    These setbacks have caused Samsung Display to put back its plans to roll out the next generation TV panels from its LCD manufacturing lines at the L8 plant in South Chungcheong Province from Q3 to Q4 of this year.

    Samsung may well be taking these development and manufacturing problems as an expected part of the production cycle of a brand new product, but it will also be interesting to see if the recently reported boost of QLED sales over OLEDs has any bearing on the speed at which the company tries to get QD-OLED to the market.

    Source: en.thel ec.kr
    Image Source: www.i-micronews.com

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