Organic electroluminescence device and organic electroluminescence equipment

An electroluminescent device and luminescent technology, applied in the direction of electric solid-state devices, electrical components, semiconductor devices, etc., can solve the problem that the color gamut of OLED devices is not high enough, and achieve the goals of increasing the color gamut area, narrowing the spectrum, and high luminous efficiency Effect

Inactive Publication Date: 2018-10-16
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that in the prior art, the color gamut of OLED devices is not high enough

Method used

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  • Organic electroluminescence device and organic electroluminescence equipment
  • Organic electroluminescence device and organic electroluminescence equipment
  • Organic electroluminescence device and organic electroluminescence equipment

Examples

Experimental program
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Embodiment 1

[0089] This embodiment provides a specific example of an organic electroluminescence device. The organic electroluminescent device in this embodiment includes monochromatic organic light emitting diodes with three light emitting wavelengths, namely red organic light emitting diodes, green light organic light emitting diodes and blue light organic light emitting diodes. Among them, the three organic light emitting diodes all have a microcavity structure.

[0090] Each organic light emitting diode includes a first electrode layer, a light emitting layer and a second electrode layer which are stacked. Wherein, the first electrode layer in the green organic light emitting diode includes a reflective layer, a light compensation layer and a transparent anode layer stacked, and the transparent anode layer is arranged close to the light emitting layer.

[0091] In this embodiment, the refractive index of the optical compensation layer is 2.1, the thickness is 142 nm, and the material...

Embodiment 2

[0100] The embodiment of the present invention provides a specific example of an organic electroluminescence device. Its structure is the same as embodiment 1, and the difference with the organic electroluminescent device that embodiment 1 provides is:

[0101] In this embodiment, the refractive index of the optical compensation layer is 1.9, the thickness is 150 nm, and the material is ITO.

Embodiment 3

[0103] The embodiment of the present invention provides a specific example of an organic electroluminescence device. Its structure is the same as embodiment 1, and the difference with the organic electroluminescent device that embodiment 1 provides is:

[0104] In this embodiment, the refractive index of the optical compensation layer is 2.0, the thickness is 150 nm, and the material is IGZO.

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Abstract

The invention relates to the technical field of display, and discloses an organic electroluminescence device and organic electroluminescence equipment. The device comprises an organic luminescent diode with the luminescent wavelength of lambda, wherein the organic luminescent diode comprises a microcavity structure; the relation between the microcavity optical path of the organic luminescent diodeand the luminescent wavelength of the organic luminescent diode meets the relational expression that L=n lambda, wherein lambda is greater than or equal to 577 nm and smaller than or equal to 492 nm;n is greater than or equal to 3, and is a positive integer; the organic luminescent diode comprises a first electrode layer, a luminescent layer and a second electrode layer which are stacked in sequence; the first electrode layer comprises a reflecting layer, a light compensating layer and a transparent anode layer which are stacked, and the transparent anode layer is arranged close to the luminescent layer. The organic luminescent diode corresponding to green light luminescent wavelength can realize three-step microcavity or higher-step microcavity, so that the spectrum is narrowed effectively, and the color gamut area is increased. The technical problem that a traditional green light device is difficult to realize color gamut expansion like a red light device or a red light device dueto the personal limitation is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence device and an organic electroluminescence device. Background technique [0002] Organic electroluminescence display (English full name Organic Light Emitting Display, referred to as OLED) is an active light-emitting display device, due to its advantages of high contrast, wide viewing angle, low power consumption, thinner volume, etc. It is prepared by a roll to roll process and is easy to realize flexible display, which is one of the most concerned technologies in the current flat panel display technology. [0003] With the continuous development of OLED technology, higher and higher requirements are placed on the performance of display devices. For example, increasing the color gamut, etc. The so-called color gamut is a method of encoding a color, and also refers to the sum of colors that a technical system can produce. figure 1 It is a color c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52
CPCH10K50/81H10K50/852
Inventor 李维维何麟李梦真周小康李田田田景文
Owner YUNGU GUAN TECH CO LTD
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