Concerns on Shortages for Light Guide Plate (LGP) for LED LCD TVs and Raw Materials Rise in 2011
Concerns on Shortages for Light Guide Plate (LGP) for LED LCD TVs and Raw Materials Rise in 2011
  • Korea IT Times
  • 승인 2010.10.08 09:18
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  • From the sharp increase in LED LCD TV demand in 1H, 2010, shortages exist in LGP and raw materials
  • Technology Development Direction of LGP for LED LCD TV: (1) Slimmer product, (2) Higher Brightness (3) New Process/New Material development
  • 78 million LED LCD TVs expected to be sold in 2011, over 200% growth rate Y/Y - concerns on shortages for LGP and raw materials

 

Seoul, Korea & San Jose, CA, October 5, 2010- While LED LCD TV is showing exponential growth, the growth of edge-type LED LCD TV with its merit in slim design is especially notable. Accordingly, issues in shortages for LGP, a key optical component for edge-type LED LCD TV as well as raw materials have been noted during the first half of 2010. From this, raw materials for LGP, MMA and PMMA prices have continuously increased throughout the first half of 2010. From the LGP processing maker's perspective, the capacity expansion of production line continues by turning the existing lines dedicated for diffusion plate into LGP production line that the competition is becoming severe.

 

However in the recent days, overstocked LED LCD TV led eased supply/demand for Light Guide Plates. TV makers are making every effort to consume the stocked products with aggressive marketing strategy and price decrease policy but production is stalled compared to the first half of 2010 and accordingly, the LGP production line utilization has been lowered. According to recently published "LGP for LED LCD TV 2011" by Displaybank, LED LCD TV is expected to create 78 million unit market next year and edge-type LED LCD TV demand will show especially large demand and continue to increase that the currently lowered LGP production utilization rate may perhaps work as negative towards the LED LCD TV market for 2011 that may grow twice over year 2010.

MMA raw material supply is expected to be maintained tight that LGP makers are continuously trying to develop (1) Slimmer product, (2) Higher Brightness (3) New Process/New Material development

(1) Slimmer product: slimmer light guide plate is the technology that could slightly ease the raw material shortage situation and is the technology that largely involved for decreasing overall TV product thickness. The thickness of current mainstream product is 3.5mm/3mm for leading companies and makers that actively entered into edge-type LED backlit market this year is largely mass producing 4mm. But in order to apply thickness of 3.x mm level to 2.x mm level in mass scale, heat resistant characteristic and brightness lowering problem need to be addressed that 
(2) Higher Brightness: late comers to the LGP market is showing trend of attempting to develop high brightness LGP in order to technologically differentiate themselves from existing makers. Methods like forming lenticular pattern directly on the original substrate of LGP or realizing prism phenomenon in the dot pattern forming stage bring slightly brightness improvement effect.  
(3) New Process/New Material development: Existing original substrate of LGP processing process have losses in material cost and ingredients due to multiple processes that attempts of molding LGP for TV with simplified process such as injection molding continues. There exist uncertainties because the technology is not yet validated in many parts but since it is advanced technology with many merits, makers continue to develop mass production technology, according to Duke Lee, research director at Displaybank.

source: Displaybank

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