Active organic light-emitting diode (OLED) display device and manufacturing method thereof

Abstract

The invention provides an active organic light-emitting diode (OLED) display device and a manufacturing method thereof. The active OLED display device comprises a display area and a non-display area. The non-display area comprises a negative electrode power line, wherein an insulating layer is arranged on the negative electrode power line, a planarization layer further covers the insulating layer and extends to and covers the negative electrode power line, and a gradient included angle alpha formed by the planarization layer and the contact surface of the negative electrode power line is smaller than a gradient included angle beta formed by the insulating layer and the contact surface of the negative electrode power line, so transition is flatly and slowly formed from a negative electrode to the negative electrode power line, smoothness from the negative electrode to the contact area of the negative electrode power line is increased, and contact resistance is effectively reduced. The planarization layer covers a non-pixel area of a positive electrode, and the thickness of the planarization layer is larger than or equal to the sum of the thickness of the positive electrode, the thickness of an organic functional layer and the thickness of the negative electrode, so a pixel area can be protected against scratching, the rate of finished products of the display device is effectively guaranteed, a manufacturing process is simple, and the process is easy to achieve.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to an active OLED display device. Background technique [0002] Organic light-emitting display diode (English full name Organic Light-Emitting Diode, referred to as OLED) is an active light-emitting device. Compared with thin-film transistor liquid crystal display (English full name Liquid Crystal Display, LCD for short) and plasma display panel (English full name Plasma Display Panel, PDP) in the existing flat panel display technology, OLED has high contrast, wide viewing angle, low power consumption, and small size. It is expected to become the mainstream flat panel display technology of the next generation, and it is one of the most concerned technologies in the flat panel display technology at present. [0003] According to the driving method, organic light-emitting display devices can be divided into passively driven organic light-emitting devices (English full name:...

AI Technical Summary

Problems solved by technology

[0010] For this reason, what the present invention is to solve is the problem that the method for reducing the contact resistance of the cathode and the cathode power supply line in the top-emitting OLED affects the light output rate and the problem that the process is complicated and difficult to realize, and provides an active OLED display with a low contact resistance between the cathode and the cathode power supply line Devices and methods of making them

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