Kabushiki Kaisha Toyota Jidoshokki

Hiroyuki Miura

Yoshifumi Kato

Norihito Takeuchi

Hiroyasu Kawauchi

Haruyuki Ishikawa

An organic EL element that is an electroluminescence element has at least an organic layer held between a pair of electrodes. At least an electrode made of material having a higher volume resistivity, of the pair of electrodes, is formed in a flat form. The organic layer is provided with a plurality of non-light emitting portions. The non-light emitting portions are provided so that a larger number of non-light emitting portions exist per unit area at a position physically closer to the position of a terminal portion at which the electrode made of material having the higher volume resistivity is connected to an external connection terminal. As a result, the level of current passing per unit area is substantially uniform at each position on the element.

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Kariya, Japan

Hiroyuki Miura