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OLED light-emitting device, manufacturing method thereof and display device

A technology for light-emitting devices and display devices, which can be used in the manufacture of semiconductor/solid-state devices, semiconductor devices, and electric solid-state devices, etc., and can solve problems such as low light output efficiency and total reflection.

Active Publication Date: 2014-08-06
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the light output efficiency of OLED is relatively low. Generally speaking, only a small amount of light energy can pass through the glass substrate and emit into the air. One reason is that the refractive index of organic matter is higher than that of glass and air, and the refractive index of glass is also higher than that of air. Higher than the air, when the light emitted by the light-emitting layer is emitted to the glass and air, there will be total reflection phenomenon, that is, the light has a waveguide phenomenon inside the organic layer and glass and is enclosed in the organic film and glass substrate and cannot be emitted into the air. , this enclosed light is called waveguide mode light

Method used

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  • OLED light-emitting device, manufacturing method thereof and display device
  • OLED light-emitting device, manufacturing method thereof and display device
  • OLED light-emitting device, manufacturing method thereof and display device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The embodiment of the present invention provides an OLED light emitting device 10, such as Figure 1 to Figure 3 As shown, the OLED light-emitting device 10 includes: a base substrate 100, a first electrode 200, an organic material functional layer 300, a transparent or translucent second electrode 400 disposed on the base substrate in sequence, and a second electrode 400 located on the base substrate. The second electrode 400 is away from the cover lay...

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Abstract

The embodiment of the invention provides an OLED light-emitting device, a manufacturing method of the OLED light-emitting device and a display device and relates to the technical field of display. Light loss in a waveguide mode can be reduced and the light output efficiency can be improved. The OLED light-emitting device comprises a substrate, wherein a first electrode, an organic material functional layer, a transparent or semitransparent second electrode and a covering layer are sequentially arranged on the substrate, the covering layer is arranged on the side, far away from the substrate, of the second electrode, and the surface, far away from the substrate, of the covering layer is uneven. The OLED light-emitting device, the display device and the manufacturing method of the OLED light-emitting device are used for reducing light loss in the waveguide mode and improving the light output efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED light-emitting device, a preparation method thereof, and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) is an organic thin-film electroluminescent device, which has the advantages of simple preparation process, low cost, easy formation of flexible structure, and wide viewing angle; therefore, the display technology using OLED Has become an important display technology. [0003] At present, the light output efficiency of OLED is relatively low. Generally speaking, only a little light energy can pass through the glass substrate and emit into the air. The reason is that the refractive index of organic matter is higher than that of glass and air, and the refractive index of glass is also higher than that of air. Higher than the air, when the light emitted by the light-emitting layer is emitted to the glass and air, there will be total re...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/56H01L27/32
CPCH10K59/122H10K50/854H10K59/12H10K50/858H10K50/844H10K59/123H10K71/00H10K59/1201
Inventor 马文昱
Owner BOE TECH GRP CO LTD
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