| 摘要 |
<p>An organic light emitting device containing (i) a substrate (11); (ii) a first electrode, such as an anode (12); (iii) a mixed region (15) comprising a mixture of a hole transport material and an electron transport material, and wherein this mixed region includes at least one organic luminescent material; (iv) a second electrode, such as a cathode (18); (v) a thermal protective element (19) coated on the second electrode; wherein, one of the two said first and second electrodes is a hole injection anode, and one of the two electrodes is an electron injection cathode, and wherein the organic light emitting device further comprises; (vi) a hole transport region (13), interposed between the anode (12) and the mixed region (15), wherein the hole transport region optionally includes a buffer layer (14); and (vii) an electron transport region (16) interposed between the cathode (18) and the mixed region (15).</p> |
