| 摘要 |
A light emitting element, including an anode, a cathode, a hole transport layer disposed between the anode and the cathode and in the side of the anode, and a light emitting layer disposed between the anode and the cathode and in the side of the cathode, wherein the hole transport layer includes, a first region disposed in the side of the anode and composed of a first organic polymer, and a second region disposed in the side of the light emitting layer and composed of a second organic polymer having a weight-average molecular weight different from the weight-average molecular weight of the first organic polymer.
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