Organic electroluminescent device, mask plate, luminescent module and application thereof

Abstract

The invention provides an organic electroluminescent device, a luminescent module and application thereof. The organic electroluminescent device comprises a base plate as well as a working zone and a non-working zone which are positioned on the base plate, wherein the working zone comprises a display zone, a lead zone and an IC (Integrated Circuit) binding zone, and a nontransparent shielding layer is arranged on the non-working zone and not connected with the working zone. The non-working zone is provided with the shielding layer so that light rays emitted by a luminescent layer and refracted in an OLED (Organic Light Emitting Diode) screen body can not be transmitted out of the screen body and is shielded without influencing the normal use of the luminescent layer. Meanwhile, as the shielding layer and an auxiliary electrode are simultaneously prepared, a new process step is not increased so that the organic electroluminescent device is convenient for preparation. A mask plate designed for manufacturing the shielding layer is provided with a figure for preparing the shielding layer in the non-working zone.

Description

technical field [0001] The invention relates to an organic electroluminescent device, in particular to an improved screen structure of an organic electroluminescent device. Background technique [0002] The principle of organic electroluminescence refers to the use of organic materials as the light-emitting layer, with a cathode layer and an anode layer on both sides of the light-emitting layer, and a current is passed between the two electrodes. When the current passes through the light-emitting layer, the organic material in the light-emitting layer will emit light. Based on this principle, people have developed an organic electroluminescent device (Organic Light Emitting Diode, hereinafter referred to as OLED). Compared with traditional liquid crystal display devices, OLED has the advantages of thin body, simple preparation process, full curing of luminescent materials, and flexible devices, which has attracted widespread attention. More and more OLEDs are used in the fie...

AI Technical Summary

Problems solved by technology

However, the light emitted by the light-emitting layer is refracted by the groove of the package cover and emits light 2. This part of the light will cause bright lines or bright spots in the non-display area of ​​the OLED screen, which will affect the appearance of the OLED screen and be mistaken for bad. abnormal screen or display

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