Organic electroluminescent element, array substrate, preparation method thereof, and display panel

An array substrate and luminescent technology, which is applied in the manufacture of electrical components, electrical solid-state devices, semiconductor/solid-state devices, etc., can solve the problems of short life of OLED display panels, short life of blue light-emitting elements, and exciton quenching, achieving Improve the phenomenon of exciton quenching, slow down the aging rate of excitons, and improve the effect of life

Active Publication Date: 2021-03-05
BOE TECH GRP CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] OLED display panels usually include RGB (red, green, blue) three-color light-emitting elements. Under the condition of providing the same voltage, the heat radiation of the blue light-emitting elements is relatively high, and the excitons of the blue light-emitting elements burst when they are lit. The off phenomenon is more serious, resulting in a shorter life of the blue light-emitting element, which leads to a shorter life of the OLED display panel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic electroluminescent element, array substrate, preparation method thereof, and display panel
  • Organic electroluminescent element, array substrate, preparation method thereof, and display panel
  • Organic electroluminescent element, array substrate, preparation method thereof, and display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]This embodiment provides an organic electroluminescent element, such asfigure 2 As shown, including the first electrode 1, the light-emitting function layer 2, and the second electrode 3, the light-emitting function layer 2 is formed between the first electrode 1 and the second electrode 3, and the luminescent function layer 2 is a curved panel structure.

[0035]Wherein, the luminescent function layer 2 includes a hole transport layer, a hole injection layer, a light-emitting layer, an electron transport layer, an electron injection layer. The respective film layers constituting the light-emitting function layer 2 are structural surface structures, and the curved panel structure of each membrane layer is matched, thereby constituting the luminescent functional layer 2 of the curved panel structure. Alternatively, the luminescent function layer 2 may include only a light emitting layer. The first electrode 1 is an anode of an organic electroluminescent element, and the second ele...

Embodiment 2

[0041]This embodiment provides an organic electroluminescent element, which is different from in Example 1, such asFigure 4 As shown, the light-emitting function layer 2 is an arc panel, and the arc panel is recessed to the second electrode 3, and the first electrode 1 and the second electrode 3 are arc panels that match the luminescent functional layer 2.

[0042]The principle of other structural settings and improved life of the organic electroluminescent element in this embodiment is the same as in Example 1, and details are not described herein again.

Embodiment 3

[0044]This embodiment provides an organic electroluminescent element, which is different from those of Example 1-2, such asFigure 5 As shown, the light-emitting function layer 2 is the same as the wavy plate, the wavelet and the rig shape of the waveguide, and the first electrode 1 and the second electrode 3 are the wavy plates that match the light-emitting functional layer 2.

[0045]It should be noted that the peaks and troughs of the wavy can also be the same as the same size.

[0046]The principle of other structural settings and improved life of the organic electroluminescent element in this embodiment is the same as in Example 1, and details are not described herein again.

[0047]Example 1-3 Advantages: An organic electroluminescent element provided in Examples 1-3, by setting the light-emitting function layer of the organic electroluminescent element to a curved panel structure, relative to a flat panel having the same large outlet area The organic electroluminescent element of the s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an organic electroluminescence element, an array substrate and a preparation method thereof and a display panel. The organic electroluminescence element a first electrode, a luminescent function layer and a second electrode, and the luminescent function layer is clamped between the first and second electrodes and is of a curved plate structure. Compared with an organic electroluminescence element with a luminescent function layer of a planar plate structure with the same large light emitting area, the organic electroluminescence element of the invention can broaden the light emitting area of the organic electroluminescence element, and ensures that the voltage loaded by the organic electroluminescence element of the curved plate structure is obviously lower than thatloaded by the organic electroluminescence of the planar plate structure under the condition that the light emitting brightness of the organic electroluminescence element is not changed; and further heat radiation of the organic electroluminescence element is reduced, an exciton quenching phenomenon caused by higher temperature is solved to certain extent, exciton ageing is slowed, and the servicelife of the organic electroluminescence element is prolonged.

Description

Technical field[0001]The present invention relates to the field of display, and in particular, to an organic electroluminescent element, an array substrate, and a preparation method thereof and a display panel thereof.Background technique[0002]OLED (Organic Light-Emitting Diode, OLED) Display Panel is high due to the advantages of high color gammon, fast response speed, and bend, more and more applied to the smart display terminal, which is the next generation of display technology.[0003]The OLED display panel typically includes RGB (red, green, blue) three-color light-emitting elements, and in the case of an isometric voltage, the blue light-emitting element is high, and the blue light-emitting element is suddenly lit. The extinguishing phenomenon is more serious, resulting in a short life of the blue light-emitting element, resulting in a short life of the OLED display panel.Inventive content[0004]The present invention provides an organic electroluminescent element, an array subst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/56H01L27/32
Inventor 张娟王路焦志强
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap