OLED light-emitting device, display device, electronic equipment and manufacturing method of OLED light-emitting device

Abstract

The invention relates to an OLED light-emitting device, a display device, electronic equipment and a manufacturing method of the OLED light-emitting device. The first stacked structure light-emitting element comprises a plurality of light-emitting units and a first charge generation layer located between the light-emitting units. The second stacked structure light-emitting element comprises a plurality of light-emitting units and second charge generation layers located among the light-emitting units. Each of the first charge generation layer and the second charge generation layer is configured from one or more charge generation constituent layers. A first end region of the first charge generation layer and a second end region of the second charge generation layer overlap over a top surface of the element separation layer. And an overlapping region, an end region of a constituent layer of the first stacked structure light-emitting element or the second stacked structure light-emitting element configured to block a charge of any polarity is provided between charge generation constituent layers of the first charge generation layer and the second charge generation layer configured to generate a charge of the same polarity as the charge blocked by the constituent layer.

Description

technical field [0001] The present invention relates to OLED light-emitting devices. Background technique [0002] Organic Light Emitting Diode (OLED) elements are self-luminous elements driven by current and therefore do not require a backlight. Besides, OLED elements have advantages of realizing low power consumption, wide viewing angle, and high contrast ratio; it is expected to contribute to the development of light-emitting devices such as flat panel display devices, light source devices, and the like. [0003] Structures of stacking light-emitting cells of a plurality of OLED structures for emitting light of the same color or different colors are known. Stacking light emitting cells for the same color of light provides an OLED light emitting device with longer lifetime and higher brightness. Stacking the red light-emitting unit, the blue light-emitting unit, and the green light-emitting unit constitutes a white light-emitting element. Such light-emitting elements (p...

AI Technical Summary

Problems solved by technology

However, charge leakage via the charge generation layer may occur between light emitting elements adjacent to each other

Crosstalk between light-emitting elements caused by charge leakage degrades light-emitting quality of OLED light-emitting devices

Images