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Under laboratory conditions, the transparent white OLED prototype has achieved a luminous efficiency of more than 20 lm/W at a brightness of 1,000 cd/m2. The large-scale prototype of the transparent white OLED tile with color coordinates 0.396/0.404 (CIEx/y main emissive side) lights up an area of nearly 90 cm2. The OLED is transparent whether it is powered on or off, and its transparency is currently rated at 55%. As the product is further developed, this value is expected to reach 75%.
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