By using a charge-transporting thin film which is made of charge-transporting varnish containing, as an electron-acceptor material, a 1,4-benzodioxane sulfonic acid compound represented by the formula (1) below especially in an OLED device or a PLED device, there can be realized excellent EL device characteristics such as low driving voltage, high luminous efficiency and long life.展开▼
机译：特别是在OLED器件或PLED中，通过使用由电荷传输性清漆制成的电荷传输性薄膜，该电荷传输性清漆包含由下式（1）表示的1,4-苯并二恶烷磺酸化合物作为电子受体材料。器件，可以实现优异的EL器件特性，例如低驱动电压，高发光效率和长寿命。 <图像文件=“ IMGA0001.GIF” he =“ 42” id =“ ia01” imgContent =“ chem” imgFormat =“ GIF” wi =“ 59” />
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