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Organic light-emitting device and display device

A technology of organic light-emitting devices and quantum dot layers, which is applied in organic semiconductor devices, electric solid-state devices, semiconductor devices, etc., to achieve the effect of improving luminescent color purity and high carrier mobility

Inactive Publication Date: 2019-07-26
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, quantum dot materials are used as color conversion layer materials, and are generally placed outside light-emitting components, requiring additional manufacturing processes

Method used

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  • Organic light-emitting device and display device
  • Organic light-emitting device and display device

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Embodiment Construction

[0026] The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the attached drawings. direction. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0027] Such as figure 1 As shown, in one embodiment: the organic light-emitting device 10 of the present invention includes a first electrode 11, a hole injection layer 12, a hole transport layer 13, a light emitting layer 14, an electron transport layer 15, a quantum dot layer 16, an electron injection layer Layer 17 and the second electrode 18.

[0028] The first electrode 11 is a reflective electrode, which serves as an anode, and the material used for the reflective electrode i...

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Abstract

The invention discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an electron transmission layer, an electron injection layer and a quantum dotlayer, wherein the quantum dot layer is arranged between the electron transmission layer and the electron injection layer. According to the organic light-emitting device and the display device, the quantum dot layer is added between the electron injection layer and the electron transmission layer, so that the quantum dots in the quantum dot layer emit a narrower spectrum, a phenomenon of shoulderpeak enhancement caused by a micro-cavity effect by the light-emitting spectrum with extremely narrow quantum dot is avoided, and the purity of the light-emitting color is improved.

Description

technical field [0001] The present invention relates to the fields of displays and the like, in particular to an organic light-emitting device and a display device. Background technique [0002] Organic light emitting diode display (OLED) has been widely used in flat panel display devices due to its advantages of high contrast, large viewing angle, fast response speed, thinness and flexibility. At present, small-size OLED products adopt vacuum evaporation and fine mask technology to realize RGB three-color display, which has become mature. However, large-size OLED products have been abandoned due to the serious warping and deformation of the reticle after the size becomes larger, which increases the difficulty of alignment, resulting in a very low yield. [0003] At present, large-size color display is generally realized through white light and color filter technology. However, vacuum evaporation white light adopts a multi-layer structure, which faces disadvantages such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L27/32
CPCH10K59/12H10K50/125H10K50/818H10K50/828H10K2102/00
Inventor 王士攀
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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