Samsung Display Co., Ltd.

Heun Seung Lee

Ha Jin Song

Ji Hwan Yoon

Sang Woo Lee

Kyul Han

Jae Hoon Hwang

Hyo Yeon Kim

Hyun Shik Lee

Yi Seul Kim

Hye Yeon Shim

Sang-Woo Lee

Hyo-Yeon Kim

Hyo Young Kim

Jung Ho Choi

Hye-Yeon Shim

Nam Su Kang

Dal Ho Kim

Heung Su Park

A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.

Display device

A light emitting display device includes a substrate that includes a first pixel, a second pixel, a third pixel, and an infrared ray emission portion, the first pixel, the second pixel, and the third pixel representing different colors, a first electrode on the substrate, a second electrode that overlaps the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The emission layer may include a first emission layer in the first pixel and an infrared ray emission layer in the infrared ray emission portion, the auxiliary layer may include a first auxiliary layer in the first pixel, and the infrared ray emission layer and the first auxiliary layer may include the same material.

Light emitting display device

A light emitting display device includes: a first electrode positioned on a substrate; a second electrode overlapping the first electrode; a red emission layer, a green emission layer, a blue emission layer, and an infrared ray emission layer emitting light of different wavelengths and positioned between the first electrode and the second electrode; a green resonance auxiliary layer positioned between the green emission layer and the first electrode; and a blocking layer positioned between the green resonance auxiliary layer and the green emission layer, wherein the infrared ray emission layer and the green resonance auxiliary layer include the same material, and LUMO energy of the blocking layer is larger than LUMO energy of a green light emitting dopant included in the green emission layer.

Light emitting display device including an infrared ray light emitting diode

An organic light emitting display device includes: an anode electrode; a cathode electrode; an emitting layer disposed between the anode electrode and the cathode electrode; and an electron transport layer disposed between the cathode electrode and the emitting layer, the electron transport layer including a p-type dopant.

Organic light emitting display device including a P-type dopant in an electron transport layer

An organic light-emitting display including a substrate having a first pixel area to emit a light of a first color and a second pixel area to emit a light of a second color, a first anode disposed on the first pixel area and a second anode disposed on the second pixel area, a first emitting layer disposed on the first anode and a second emitting layer disposed on the second anode, the first emitting layer including a fluorescent light-emitting material and the second emitting layer including a first phosphorescent light-emitting material, a first buffer layer disposed on the first emitting layer and a second buffer layer disposed on the second emitting layer, the first buffer layer and the second buffer layer being formed of different materials, and a first cathode disposed on the first buffer layer and a second cathode disposed on the second buffer layer.

Organic light-emitting display

An organic light emitting element according to an exemplary embodiment of the present invention includes a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole auxiliary layer between the first electrode and the emission layer. The hole auxiliary layer includes at least one hole blocking layer and at least one hole transport layer contacting the hole blocking layer, and a thickness of the hole auxiliary layer is in a range of 140 angstroms to 220 angstroms.

Organic light emitting diode having hole auxiliary layer and organic light emitting diode display including the same

An organic light-emitting display device, a method of manufacturing the same, and a donor substrate and a donor substrate set used to manufacture the organic light-emitting display device. According to an aspect of the present invention, there is provided an organic light-emitting display device comprising a substrate which comprises a green region and a red region, a plurality of first electrodes which are formed on the green region and the red region of the substrate, respectively, a plurality of light-emitting layers which are formed on the first electrodes and comprise a green light-emitting layer formed on the green region and a red light-emitting layer formed on the red region, and a second electrode which is formed on the light-emitting layers, wherein the green light-emitting layer comprises a first light-emitting layer which comprises a first host material and a first dopant material and a first buffer layer which is formed on the first light-emitting layer and comprises the first host material, and the red light-emitting layer comprises a second light-emitting layer which comprises a second host material and a second dopant material and a second buffer layer which is formed on the second light-emitting layer and comprises the first host material.

Organic light-emitting display device, method of manufacturing the same, and donor substrate and donor substrate set used to manufacture the organic light-emitting display device

An organic layer forming apparatus includes a donor film supply part configured to supply a donor film. The donor film includes a base substrate, a transfer layer disposed on the base substrate, and a protective film disposed on the transfer layer. The apparatus also includes a protective film withdrawal part configured to remove the protective film from the donor film, a transfer printing process part configured to transfer the transfer layer of the donor film onto a transfer substrate to form a first organic layer, a first deposition part configured to form a second organic layer on the transfer layer through a first deposition process, a second deposition part configured to form a third organic layer on the transfer layer through a second deposition process, and a donor film withdrawal part configured to withdraw the donor film.

Growing community of inventors

Yongin-si, South Korea

Heun Seung Lee