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OLED (organic light-emitting diode) and light-emitting device

An electroluminescent device and electroluminescent layer technology, applied in the field of luminescence, can solve problems such as limited selection range, and achieve the effects of long life, high efficiency, and satisfying color temperature requirements

Active Publication Date: 2018-09-14
BOE TECH GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide an organic electroluminescent device and a light-emitting device, which can improve the problem in the

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  • OLED (organic light-emitting diode) and light-emitting device
  • OLED (organic light-emitting diode) and light-emitting device
  • OLED (organic light-emitting diode) and light-emitting 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] At present, among the commonly used materials for the organic electroluminescent layer in organic electroluminescent devices, red, green and yellow luminescent materials use phosphorescent materials, while blue light can only use fluorescent materials due to lifespan. Phosphorescent materials have much higher light efficiency than fluorescent materials. Therefore, in a vertically stacked stacked white light device, if the light efficiency of the phosphor...

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Abstract

The invention provides an OLED (organic light-emitting device) and a light-emitting device, relates to the technical field of light emitting, and can solve the problem of selection range limitation ofa material of organic light-emitting layers due to need for adjustment of hybrid light color temperature in the prior art. The OLED comprises at least one light emitting unit arranged on a substrate,wherein each light emitting unit comprises a first zone, a second zone arranged on the periphery of the first zone, at least two organic light-emitting layers and carrier generation layers arranged between the adjacent organic light-emitting layers, the organic light-emitting layers are arranged in the first zone and have different light-emitting colors, the carrier generation layers are at leastarranged in the first zone, and at least one of the at least two organic light-emitting layers extends to the second zone.

Description

technical field [0001] The invention relates to the technical field of light emission, in particular to an organic electroluminescent device and a light emitting device. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) is a self-luminous semiconductor device. Compared with traditional light-emitting devices, OLED devices have high brightness, low power consumption, high response speed, wide operating temperature range, flexible Curved, easy to achieve surface light source, and soft light and other advantages. The light-emitting mechanism of OLED devices is: under the action of an external electric field, electrons and holes are respectively injected into the organic light-emitting material from the positive and negative poles, thereby migrating, recombining, and attenuating in the organic light-emitting material to emit light. [0003] In the application scenario where it is necessary to use a variety of organic light-emitting ...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/50
CPCH10K59/00H10K50/16H10K50/11
Inventor 闫光吴长晏杨栋芳石守磊
Owner BOE TECH GRP CO LTD
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