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Organic light emitting device

An electroluminescent device and electroluminescent technology, which can be applied in the direction of electro-solid devices, electrical components, semiconductor devices, etc., and can solve problems such as affecting the performance of light-emitting devices and blocking.

Active Publication Date: 2018-03-09
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an organic electroluminescent device for the traditional method of forming an optical compensation layer by precise MASK evaporation, which is likely to cause blocking phenomenon in the evaporation process and affect the performance of the light-emitting device.

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Embodiment Construction

[0035] In order to make the technical solution of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] First of all, it should be noted that in order to ensure that the drawings can clearly show the structure of the organic electroluminescent device of the present invention, the drawings corresponding to each specific embodiment in the drawings of the description will exaggerate the size and relative size of layers and regions. That is to say, in the organic electroluminescent device of the present invention, the structural diagrams of the specific embodiments provided in the accompanying drawings of the description only serve as auxiliary explanations, and the thickness and area of ​​each layer of the actually prepared organic electroluminescent device The embodiments shown in the drawings are not necessarily accurate.

[0037] see figure 1 , as a specif...

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Abstract

The invention discloses an organic light emitting device, which comprises an anode, a first organic function layer, a light emitting layer, a second organic function layer and a cathode, wherein the first organic function layer is formed on the anode; the light emitting layer is formed on the first organic function layer; the second organic function layer is formed on the light emitting layer; thecathode is formed on the second organic function layer; the light emitting layer comprises a red light emitting layer, a green light emitting layer and a blue light emitting layer; both the red lightemitting layer and the green light emitting layer are formed on the first organic function layer; the blue light emitting layer is formed on the red light emitting layer and the first organic function layer which is not covered by the red light emitting layer and the green light emitting layer; and the area, which is covered by the blue light emitting layer, of the red light emitting layer is used as a first red light compensation layer for the red light emitting layer. Part of the blue light emitting layer is used as part of the light compensation layer of the red light emitting layer, the thickness of the light compensation layer of the traditional red light emitting layer is reduced, and the yield of the device is effectively improved.

Description

technical field [0001] The invention relates to the technical field of light emitting devices, in particular to an organic electroluminescent device. Background technique [0002] An organic electroluminescent device (OLED) generally includes a plurality of pixels, each pixel consisting of several sub-pixels. At present, one pixel composed of red, green, and blue pixels is widely used in small and medium sizes. Correspondingly, the structure of an organic electroluminescent device generally includes a red light-emitting layer, a green light-emitting layer and a blue light-emitting layer arranged side by side. Wherein, the red light emitting layer corresponds to the red pixel area, the green light emitting layer corresponds to the green pixel area, and the blue light emitting layer corresponds to the blue pixel area. [0003] Since red light, green light and blue light have different wavelengths, in order to ensure the display effect of the light emitting device, it is nece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50
CPCH10K50/13H10K50/11H10K2101/10
Inventor 高松李维维刘嵩
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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