18083782. ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF simplified abstract (Samsung Electronics Co., Ltd.)

ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Dae Young Chung of Suwon-si (KR)

Hwea Yoon Kim of Suwon-si (KR)

Yeonkyung Lee of Seongnam-si (KR)

Eun Joo Jang of Suwon-si (KR)

ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18083782 titled 'ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF

Simplified Explanation

The patent application describes an electroluminescent device and a display device that incorporates this device. The electroluminescent device consists of a first electrode and a second electrode facing each other, a light emitting layer containing quantum dots, a hole transport layer between the light emitting layer and the first electrode, and an electron transport layer between the light emitting layer and the second electrode.

• The hole transport layer, light emitting layer, or a combination of both contains thermally activated delayed fluorescence material.
• The thermally activated delayed fluorescence material is present in an amount of 0.01 wt % to less than 10 wt %.
• The weight percentage is based on 100 wt % of the hole transport layer, light emitting layer, or the combination containing the thermally activated delayed fluorescence material.

Potential applications of this technology:

• Display devices such as televisions, smartphones, and computer monitors.
• Lighting applications such as LED panels and light bulbs.

Problems solved by this technology:

• Enhanced efficiency and brightness of electroluminescent devices.
• Improved color reproduction and image quality in display devices.

Benefits of this technology:

• Higher energy efficiency leading to reduced power consumption.
• Longer lifespan of electroluminescent devices.
• Better color accuracy and vibrancy in display devices.

Original Abstract Submitted

An electroluminescent device and a display device including the same. The electroluminescent device includes a first electrode and a second electrode facing each other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including a quantum dot; a hole transport layer disposed between the light emitting layer and the first electrode; and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the hole transport layer, the light emitting layer, or a combination thereof includes thermally activated delayed fluorescence material, and the thermally activated delayed fluorescence material is present in an amount of greater than or equal to about 0.01 wt % and less than about 10 weight percent (wt %), based on 100 wt % of the hole transport layer, the light emitting layer, or the combination thereof including the thermally activated delayed fluorescence material.