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An organic electroluminescent device, its manufacturing method, and display device

An electroluminescent device and a luminescence technology, which are applied in the direction of organic light-emitting devices, organic light-emitting device manufacturing/processing, organic light-emitting device structures, etc., can solve problems such as the color gamut cannot be improved, yellowish, aging color of OLED devices, etc. Improve the effect of water and oxygen isolation, improve the yellowish color, and improve the color gamut

Active Publication Date: 2018-02-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, an OLED device using white light as a light source, using white light as a light source, and matching the transmission spectrum of a color filter layer, achieves the effect of color display by controlling the current of the OLED device, from figure 1 It can be seen that the emission spectra at the corresponding positions of the red sub-pixel, green sub-pixel and blue sub-pixel are exactly the same, and the color gamut cannot be improved
[0005] In summary, the color gamut of OLED devices using white light as a light source in the prior art is relatively low; in addition, due to the serious life attenuation phenomenon of blue light in OLED devices, the red sub-pixels, green sub-pixels and blue sub-pixels of OLED devices The packages are exactly the same, and it is easy to cause the color of the OLED device to turn yellow after aging.

Method used

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  • An organic electroluminescent device, its manufacturing method, and display device
  • An organic electroluminescent device, its manufacturing method, and display device
  • An organic electroluminescent device, its manufacturing method, and display device

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Embodiment Construction

[0031] An embodiment of the present invention provides an organic electroluminescent device, a manufacturing method thereof, and a display device, which are used to improve the color gamut of an organic electroluminescent device using white light as a light source, and to improve the yellowish color of the organic electroluminescent device after aging The problem.

[0032] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. 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.

[0033] The organic electroluminescence device provided by the specific ...

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Abstract

The invention discloses an organic electroluminescent device, a manufacturing method thereof, and a display device, which are used for improving the color gamut of the organic electroluminescent device using white light as a light source, and improving the problem that the color of the organic electroluminescent device is yellowish after aging . The organic electroluminescent device includes a base substrate, a white light-emitting layer, a red sub-pixel filter layer, a green sub-pixel filter layer and a blue sub-pixel filter layer arranged on the base substrate, and a first A hole transport layer and a second hole transport layer; the first hole transport layer is arranged between the first anode corresponding to the blue sub-pixel filter layer and the white light emitting layer, and covers the display area of ​​the base substrate; the second The hole transport layer is located above the first anode and covers the display area of ​​the base substrate; and the horizontal plane where the first anode is located is at least the second anode corresponding to the green sub-pixel filter layer and the third anode corresponding to the red sub-pixel filter layer. The levels at which one of the anodes are located are at different levels.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence device, a manufacturing method thereof, and a display device. Background technique [0002] Organic Light Emitting Device (OLED) is a new type of photoelectric display and high-efficiency lighting technology. Due to its excellent characteristics such as solid-state light emission, wide viewing angle, low power consumption, fast response speed, and high and low temperature resistance, It is especially suitable for the requirements of low-carbon environmental protection and green life in today's world, and has been widely used in various fields of daily production and life such as flat panel display, solid-state lighting, transparent display, flexible display and lighting. [0003] Compared with red light, green light and blue light OLED devices that are evaporated separately, OLED devices that use white light as a light source require fewer evaporat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/56
CPCH10K50/157H10K50/15H10K2102/302H10K71/00
Inventor 郭远辉
Owner BOE TECH GRP CO LTD
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