| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic electroluminescent device wherein the increase in a driving voltage with the elapse of time is small. <P>SOLUTION: In the organic electroluminescent device, an organic layer contains a compound represented by a general formula (I) wherein each of X<SP>1</SP>to X<SP>8</SP>, X<SP>11</SP>to X<SP>13</SP>, X<SP>16</SP>, and Z<SP>1</SP>to Z<SP>4</SP>independently represents a carbon atom, a nitrogen atom, or a phosphorus atom and each of X<SP>14</SP>and X<SP>15</SP>independently represents a carbon atom, a nitrogen atom, an oxygen atom, or a sulfur atom. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
