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The following two reports are part of a one-off section "South Korea Report" in WAll Street Journal (WSJ), Nov. 8, 2010 in commemoration of the nation's host of incomig G-20.
(1) Jung-Ah Lee, In the Lead—and Trying to Stay There; Samsung is placing its bets on cutting-edge display technology. WSJ, Nov. 8, 2010.
http://online.wsj.com/article/SB10001424052748703673604575550032739313758.html
Quote:
(a) Regarding OLED.
"Screens with organic light emitting diodes, or OLED, have a thin layer of organic material that glow, creating the screen's backlighting.
"Samsung Mobile Display, a joint venture of Samsung Electronics and sister company Samsung SDI Co., currently dominates the market for OLED screens used in mobile phones, with more than a 95% share.
"But Samsung's goal is to make OLED for products with bigger screens, such as tablet PCs and televisions * * * The major stumbling block: Large OLED displays are costly and technically difficult to make.
(b) Regarding active matrix OLED.
"Lee Woo-jong, vice president of marketing at Samsung Mobile Display, says Samsung is 'the only company that has succeeded in mass production of active-matrix OLED displays.'
Note:
(a) Organic light-emitting diode
http://en.wikipedia.org/wiki/Organic_light-emitting_diode
(section 2 Working principle)
Quote:
OLED "is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compounds which emit light in response to an electric current. This layer of organic semiconductor material is situated between two electrodes. Generally, at least one of these electrodes is transparent.
"OLED displays can use either passive-matrix (PMOLED) or active-matrix addressing schemes. Active-matrix OLEDs (AMOLED) require a thin-film transistor backplane to switch each individual pixel on or off, and can make higher resolution and larger size displays possible.
(2) Kyong-Ae Choi, Charging Ahead; LG Chem is becoming a global leader in building batteries for the new generation of electric vehicles. WSJ, Nov. 8, 2010.
http://online.wsj.com/article/SB10001424052748703843804575534010740256140.html
My comment:
(a) Read the first question and answer.
(b) The sixth Q & A:
"WSJ: Do you see any threat from China in the rechargeable-battery business?
"MR. KIM: China is still at the toddler stage in the rechargeable-battery business. The business is not easy as safety is at stake. We have come so far, having some difficulties. Time, technology and capital are essential in this business.
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