Lg Display Co., Ltd.

Yoon-Deok Han

Jun-ho Lee

Hong-Seok Choi

Gyeong-Woo Kim

Seung-Ryong Joung

Ji-Seon Jang

In-Bum Song

Shin-Han Kim

Seung-Hee Yoon

Jin-Ho Park

Dong-Hyeok Lim

So-Young Jang

Hee-Su Byeon

Ahn-Ki Kim

Sang-Hun Han

The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first host, a second host and a first blue dopant and positioned between the first and second electrodes, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.

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

Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.

Organic light emitting device and display device using the same

Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.

Disclosed are a display panel which changes the inner structure of an organic light emitting stack and a color transmission structure so as to improve luminance, and a head mounted display device using the same.

Display panel and head mounted display device having the same

Disclosed is a display panel configured such that, in a structure in which the distance between a display surface and a viewer is short, the structure between a reflective plate and a first electrode (an anode) is changed such that light having three or more color peak properties for all subpixels is transmitted through a second electrode (a cathode), whereby white expression as well as color expression is possible, and a head mounted display device including the same.

Display panel and head mounted display device including the same

A head mounted display device comprises a display panel comprising first to third subpixels defined at a substrate, a reflection plate provided in the first, second and third subpixels, first electrodes vertically spaced apart from a lower surface of the reflection plate by a first distance, a second distance and a third distance at the first, second and third subpixels, respectively, a white organic stack on the first electrodes at the first, second and third subpixels, a second electrode on the white organic stack, and a first color filter on the second electrode at the third subpixel to transmit light having a long wavelength.

Growing community of inventors

Yongin-si, South Korea

Yoon-Deok Han