An organic light-emitting device structure and its internal temperature monitoring method

Abstract

The invention discloses an organic light-emitting device structure, which comprises a substrate, an electrode, an organic device and a package structure, wherein the electrode and the organic device are formed on the substrate. The package structure comprises at least three layers, wherein one layer is an inorganic semiconductor layer. The inorganic semiconductor layer and the organic device are separated by at least one layer of insulation layer. The inorganic semiconductor layer is electrically connected to the external portion of the package structure. Through the design above, when some area of the organic light-emitting device has higher temperature, excessively high temperature will influence actual resistance of the inorganic semiconductor layer; and by continuously measuring resistance of the inorganic semiconductor layer through a control unit, and by searching a resistance-temperature curve of the inorganic semiconductor layer, a real-time temperature value, that is, an internal temperature value of the organic light-emitting device, of the inorganic semiconductor layer can be obtained.

Description

technical field [0001] The present disclosure generally relates to the technical field of electronic display, and specifically relates to a structure of an organic light-emitting device and a method for monitoring its internal temperature. Background technique [0002] OLED (Organic Light-Emitting Diode), also known as organic light-emitting diode, its basic principle is to use very thin organic material coating and glass substrate, when there is current passing through, the organic material will emit light, that is, its Has self-luminous properties. Different from the traditional LCD display method, it does not need a backlight, which can save power. In addition, the OLED display screen can be made lighter and thinner, and the viewing angle is wider. However, although OLED has the above advantages, at the current stage, organic light-emitting display technology still has defects such as short service life and difficulty in enlarging the screen. [0003] In terms of short ...

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Problems solved by technology

[0004] At present, most rely on external thermometers (such as scanning temperature microscope (SThM), Raman spectroscopy, etc.) to detect the temperature of the screen, which is affected by the thermal conductivity of the screen glass interface. To achieve high-precision measurement, it is also necessary to be equipped with relevant alignment and focusing devices; on the other hand, the equipment is complex and difficult to monitor in real time, which needs to be improved urgently

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