Organic electroluminescence device and display device

Abstract

The invention discloses an organic electroluminescence device and a display device, and relates to the technical field of organic electroluminescence, which aims at solving the problem of the hybrid process device structure that the first part of a blue light emitting layer simultaneously emits light when a red light emitting layer and / or a green light emitting layer are needed to emit light. A material of the blue light emitting layer in the organic electroluminescence device comprises an electron transmitting material and a cavity transmitting material, wherein the electron transmitting material and the cavity transmitting material form a blue exciplex; the electron transmitting material and the cavity transmitting material of the blue light emitting layer occupy the ratio of the whole material of the blue light emitting layer, and are respectively matched with the electron transmitting capabilities of the red light emitting layer and the green light emitting layer, so that when the red light emitting layer and / or the green light emitting layer are needed to emit light, the electron and cavity will not compound at the interior and edge of the first path of the blue light emitting layer. The organic electroluminescence device is used for emitting light.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to an organic electroluminescence device and a display device. Background technique [0002] Active-matrix organic light emitting diode (AMOLED) display devices have been widely used in TVs and mobile devices due to their advantages such as wide viewing angle, high color gamut, and fast response speed. middle. At present, most AMOLED display devices adopt the full vapor deposition process to achieve mass production, and the full color display through the full vapor deposition process usually adopts RGB arrangement, which is defined by FMM (fine metal shadow mask) Pixels of different colors can be produced, but this method cannot achieve large-scale display due to the limitation of the size of the FMM. [0003] In order to realize large-scale display, a solution process is introduced in the production of AMOLED display devices in the prior art. This solution pro...

AI Technical Summary

Problems solved by technology

However, it is found during actual testing and application that the organic electroluminescent device with the above structure usually has the problem that the first part of the blue emitting layer emits light at the same time when the red emitting layer and / or the green emitting layer are required to emit light.

Images