Samsung Display Co., Ltd.

Dongha Lee

Seoksoon Back

Donghoon Kwak

Sehun Kim

Dukki Kim

Seulgi Han

Jongjang Park

Atsushi Kitabayashi

Seunguk Noh

Sukbeom You

Soohyun Park

Wonhee Nam

An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy:<−3.518*ln()+45.59,wherein y is the concentration of the organic material, and x is the molecular weight of the organic material.

Ink including an organic material, display device using the same, and method of manufacturing display device

A method of manufacturing a display device includes forming a first electrode on a substrate, forming a bank layer on the first electrode, wherein the bank layer includes an opening portion exposing at least a portion of the first electrode, forming a first bank layer and a second bank layer by baking the bank layer, wherein the second bank layer is on the first bank layer and has liquid repellency, forming a first layer on the first electrode, and forming a third bank layer and a fourth bank layer by baking the first bank layer and the second bank layer, wherein the fourth bank layer is on the third bank layer and has liquid repellency, wherein the fourth bank layer is thinner than the second bank layer.

Method of manufacturing display device

An organic light-emitting display apparatus includes: a substrate; a 1-1pixel electrode in a 1-1pixel to emit light of a first wavelength range and a 1-2pixel electrode in a 1-2pixel to emit light of the first wavelength range. The 1-1pixel and the 1-2pixel are over the substrate; a pixel-defining layer covering an edge of the 1-1pixel electrode and an edge of the 1-2pixel electrode so as to define a 1-1exposed upper surface and a 1-2exposed upper surface; a 1-1emission layer over the 1-1pixel electrode and to generate the light of the first wavelength range and a 1-2emission layer over the 1-2pixel electrode and to generate the light of the first wavelength range; and an opposite electrode over the 1-1emission layer and the 1-2emission layer.

Display apparatus

An inkjet spraying method includes preparing a spraying unit including nozzles for spraying an organic material on a target substrate including first pixels which display a same color, spraying the organic material to each of first pixels of a (1+a&#xd7;n)th first-pixel row in the first pixels, and spraying the organic material to each of first pixels of a (2+a&#xd7;n)th first-pixel row in the first pixels, where a first nozzle in the nozzles sprays the organic material to a first reference pixel in the first pixels of the (1+a&#xd7;n)th first-pixel row, a second nozzle, which is different from the first nozzle, in the nozzles sprays the organic material to a second reference pixel in the first pixels of the (2+a&#xd7;n)th first-pixel row, and the second reference pixel is disposed in parallel with the first reference pixel in a column direction.

Inkjet spraying method improving film uniformity of an organic layer, inkjet spraying device to improve film uniformity of an organic layer and display panel manufacturing method using same

An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy:3.518*1()+45.59,wherein y is the concentration of the organic material, and x is the molecular weight of the organic material.

An organic light-emitting display device including a driving element including an active pattern and a gate electrode, an insulation layer covering the driving element, a first diode electrode disposed on the insulation layer and electrically connected to the driving element, a pixel-defining layer disposed on the insulation layer and including a side surface defining an opening overlapping at least a portion of the first diode electrode, an edge-compensation part including an organic material and disposed in a peripheral area of the opening, an organic light-emitting layer disposed on the first diode electrode and the edge-compensation part, and a second diode electrode disposed on the organic light-emitting layer, in which the edge-compensation part includes an inclined surface contacting the organic light-emitting layer, and a taper angle of the inclined surface of the edge-compensation part is less than a taper angle of the side surface of the pixel-defining layer.

Growing community of inventors

Yongin-si, South Korea

Dongha Lee