Organic electroluminescent element, organic electroluminescent panel, organic electroluminescent unit, and electronic apparatus

An organic electroluminescent panel comprising:

• a red pixel;
• a green pixel;
• and
• a blue pixel,
• the red pixel, the green pixel, and the blue pixel including respective organic electroluminescent elements, the organic electroluminescent elements each including a microcavity structure,
• the microcavity structure of the red pixel having an optical path length that causes a first cavity, wherein the first cavity has a cavity order of 2,
• the microcavity structure of the green pixel having an optical path length that causes a second cavity, and the second cavity has a cavity order of 2,
• the microcavity structure of the blue pixel having an optical path length that causes a third cavity, and the third cavity has a cavity order of,
• wherein
• the organic electroluminescent elements in the red pixel, the green pixel, and the blue pixel each include, in order, an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode,
• a distance between the anode and the cathode in each of the red pixel, the green pixel, and the blue pixel has an optical path length that causes the cavity order of 2 or the cavity order of 3,
• the electron transport layer is common among the red pixel, the green pixel, and the blue pixel, and
• the hole transport layer and the light-emitting layer each have a thickness that is adjusted to cause the distance between the anode and the cathode to be the optical path length that causes the cavity order of 2 or the cavity order of 3.