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An electroluminescence display panel and a display device

An electroluminescent display and panel technology, which is applied in the direction of circuits, electrical components, electric solid devices, etc., can solve problems that affect the service life of the light-emitting layer

Active Publication Date: 2020-09-22
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an electroluminescent display panel and a display device, which are used to solve the technical problem in the prior art that ultraviolet light affects the service life of the luminescent layer in the electroluminescent display panel

Method used

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  • An electroluminescence display panel and a display device
  • An electroluminescence display panel and a display device
  • An electroluminescence display panel and a display device

Examples

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Embodiment

[0066] Such as Figure 4 As shown, when the encapsulation adhesive layer 7 is reused as the first conversion layer 51, one of Tb3+ / Yb3+ or Ce3+ / Yb3+ ion pairs is mixed in the encapsulation adhesive layer 7, and the ion exists in the form of nano-oxide co-doped particles ( Such as Tb3+ and Yb3+ co-doped YAG, Y2O3, TiO2 and other transparent nanoparticles) or organic small molecule complexes (organic small molecule complexes containing Tb3+ and Yb3+ ions at the same time), physically mixed into the adhesive material of the packaging adhesive layer 7 . The molar ratio of the sensitizer ion to the activator ion is selected between 1:1-1:5, and the doping weight percentage in the encapsulation adhesive layer 7 is between 1%-10%. These two ions, Tb3+ and Ce3+, have a good absorption effect on ultraviolet light with a wavelength in the range of 250nm to 350nm, and transfer energy to Yb3+ to convert it into near-infrared light at 900 to 1100nm.

[0067]When the oxide encapsulation l...

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Abstract

The invention discloses an electroluminescence display panel and a display device. The electroluminescence display panel comprises: an array substrate and an opposite substrate, and a light-emitting layer located between the array substrate and the opposite substrate. The light-emitting layer faces the down-conversion layer on the side of the light-emitting surface, and the orthographic projection of the down-conversion layer on the array substrate covers the orthographic projection of the light-emitting layer on the array substrate; wherein, the down-conversion layer is used to convert ultraviolet light into infrared Light. By setting the down-conversion layer on the side of the light-emitting layer facing the light-emitting surface, the high-energy ultraviolet light incident on the display panel is converted into infrared light with lower energy, thereby alleviating the aging of the light-emitting layer due to direct ultraviolet light irradiation. The service life of the display panel is extended; at the same time, because the ultraviolet light is converted into infrared light, the infrared light is not in the range of visible light, and the influence on the display of the display panel is avoided.

Description

technical field [0001] The present invention relates to the technical field of display panels, in particular to an electroluminescence display panel and a display device. Background technique [0002] Organic Light Emitting Display (OLED) is a new type of flat-panel display, compared with Liquid Crystal Display (LCD), it has thin, light, wide viewing angle, active light emission, continuously adjustable light color, It has the advantages of low cost, fast response speed, low energy consumption, low driving voltage, wide operating temperature range, simple production process, high luminous efficiency and flexible display. Due to the incomparable advantages of other displays and bright application prospects, OLED has attracted great attention from the industrial and scientific circles. [0003] In an electroluminescent display panel, the light-emitting device at least includes an anode layer, an organic light-emitting layer and a cathode layer, and all the film structures on ...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/52
CPCH10K30/865H10K50/844
Inventor 臧丹丹李杰威高昕伟李朋
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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