Compared with TFT-LCD, cost on raw materials of OLED is at least 70% lower;because OLED needs not polarizing plate, backlight module or color filter.是什么意思_Compared with TFT-LCD, cost on raw materials of OLED is at least 70% lower;because OLED needs not polarizing plate, backlight module or color filter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句