Lg Display Co., Ltd.

Dong Hyeok Lim

Jin Ho Park

In Bum Song

Seung Hee Yoon

Hwa Yong Shin

Ji Hyung Lee

Kyu Il Han

Chang Hwan Kwak

Bo Seong Kim

The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of an amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including at least one of a first hole blocking material and a second hole blocking material and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative, and wherein the first hole blocking material is an azine derivative, and the second hole blocking material is a benzimidazole derivative.

Organic light emitting diode and organic light emitting device including the same

The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one fused aromatic or hetero aromatic ring, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.

Organic light emitting diode and organic light emitting device having thereof

The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one polycyclic aryl group, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.

Discussed are a light-emitting device and a light-emitting display device having improved efficiency and increased lifespan. A plurality of stacks is provided between an anode and a cathode for at least a subpixel to emit a predetermined color, and emissive layers in different stacks include the same color-based materials having different luminous properties.

Light-emitting device and light-emitting display device including the same

Discussed is a light emitting display device which enables a common layer having high hole conductivity among common layers in respective stacks to include a material having a high orientation factor value so as to prevent generation of leakage current between subpixels and ensure high efficiency and a long lifespan.

Growing community of inventors

Paju-si, South Korea

Dong Hyeok Lim