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Organic light-emitting component and method for producing the organic light-emitting component

A technology of organic light-emitting devices and devices, applied in semiconductor/solid-state device manufacturing, optical components, electric solid-state devices, etc., can solve problems such as efficiency loss, affecting OLED appearance, affecting shape and design advantages, etc.

Active Publication Date: 2016-08-24
OSRAM OLED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has the disadvantage that the conversion material negatively affects the appearance of the OLED and thus its shape and design advantages, moreover the color conversion usually causes a strong loss of efficiency

Method used

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  • Organic light-emitting component and method for producing the organic light-emitting component
  • Organic light-emitting component and method for producing the organic light-emitting component
  • Organic light-emitting component and method for producing the organic light-emitting component

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Embodiment Construction

[0063] Figure 1a The emission spectra of three examples of conventional red emitter materials that can be used, for example, in the first and / or second organic functional layer stack are shown. Relative to normalized radiation R norm Plot wavelength λ in nm. R1 characterizes the spectrum of the phosphorescent emitter with coordinates 0.654 / 0.345 in the CIE system. The emitter has a dominant wavelength of 607 nm. R2 characterizes the spectrum of the first fluorescent red emitter with CIE coordinates of 0.672 / 0.327 and a dominant wavelength of 612 nm. The spectrum of the second fluorescent red emitter is characterized by R3 and has CIE coordinates of 0.664 / 0.334 and a dominant wavelength of 610 nm.

[0064] This red emitter cannot produce deep red emission because its dominant wavelength lies between 607 nm and 612 nm. The high-energy subrange of the emission spectrum, ie in the wavelengths between approximately 540 nm and 600 nm, influences the color impression in this res...

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Abstract

An organic light-emitting component is specified, comprising a substrate (10), a first electrode (20) on the substrate (10), at least one first organic functional layer stack (100), which emits radiation in a first wavelength range, on the first electrode (20), a second electrode (70) on the first organic functional layer stack (100), and a filter layer (50) arranged in the beam path of the first organic functional layer stack (100). The first wavelength range comprises a low-energy subrange and a high-energy subrange and the filter layer (50) has an absorption range that contains the low-energy or the high-energy subrange of the first wavelength range. A method for producing the organic light-emitting component is furthermore specified.

Description

technical field [0001] An organic light-emitting device and a method for manufacturing the organic light-emitting device are presented. Background technique [0002] Organic light-emitting devices, such as organic light-emitting diodes (OLEDs), typically contain fluorescent or phosphorescent emitter materials. The organic molecules used for this generally have a broad, defined emission spectrum that cannot be moved into the higher-energy or lower-energy range of the visible spectrum without the use of additional, external converters middle. Furthermore, it is difficult to achieve lower energy emission, ie deep red emission, because the quantum efficiency of the emitter material increases strongly due to the exponential increase of the non-radiative rate with increasing wavelength. [0003] In today's OLEDs, for example, red-emitting materials with a dominant wavelength of maximum 610 nm to 615 nm are used. The only possibility currently to shift this dominant wavelength t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/50G02B5/20H01L27/32
CPCG02B5/22H10K59/38H10K50/125H10K50/19H10K50/865H10K50/13H10K50/15H10K50/16H10K50/81H10K50/82H10K71/00H10K71/12H10K71/164H10K85/30H10K85/331H10K85/341H10K85/371
Inventor 安德烈亚斯·劳施
Owner OSRAM OLED