US 2015/0102297 A1Published application

Organic light emitting diode display and method for manufacturing the same

AssigneeSamsung Display Co., Ltd.

InventorSang Shin Lee

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Abstract

An organic light emitting diode display having a pixel array structure capable of maximizing space use, and a method for manufacturing the same. The organic light emitting diode display includes pixels of a first color, pixels of a second color, and pixels of a third color, each having a longitudinal direction that extends along one of two diagonals of the display and not along a row or a column direction. Furthermore, each of the pixels are arranged in pairs, each pixel of each pair being of a same color and being arranged near each other, extending in a same direction, and being symmetrical about a vertex of a unit area. Each pair of pixels is produced by deposition of an emission material into a single opening in a fine metal mask, leading to improved aperture ratio and improved use of space.

Claims20

Dependent claims

An organic light emitting diode display, comprising:

a plurality of pixels of a first color, a plurality of pixels of a second color, and a plurality of pixels of a third color arrayed based on a plurality of virtual unit areas arranged in a matrix, the matrix also including a plurality of vertexes, each vertex being arranged at where corners of adjoining unit areas meet,
wherein each unit area has a rectangular shape having a plurality of sides, each of the sides being approximately parallel to one of a row direction and a column direction,
wherein a first of the pixels of the first color being arranged in a first of the unit areas and being arranged to be closest to a first vertex that is one of two vertexes that a first diagonal line extending in a first diagonal direction of the first of the unit areas intersects, and
wherein a second of the pixels of the first color being arranged in a second of the unit areas, the second of the unit areas being adjacent to the first of the unit areas in the first diagonal direction, wherein the first vertex being arranged in between the first and the second of the pixels of the first color.

1 more element

A method for manufacturing an organic light emitting diode display, comprising:

forming pixel electrodes on an insulating substrate for each of a plurality of pixels of a first color, for each of a plurality of pixels of a second color, and for each of a plurality of pixels of a third color;
depositing a first emission layer on the pixel electrodes of the pixels of the first color by using a first fine metal mask;
and
forming a common electrode on the first emission layer, wherein the first fine metal mask includes a first opening corresponding to a pair of the pixels of the first color that are adjacent to each other.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/256,190Filed 18 Apr 2014
Priority: KR 10-2013-012069210 Oct 2013
Published: 16 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H10K 59/353
Comprising red-green-blue [RGB] subpixels: characterised by the geometrical arrangement of the RGB subpixels
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
G09G 3/2003
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09G 3/3208
Semiconductive, e.g. using light-emitting diodes [LED]: organic, e.g. using organic light-emitting diodes [OLED]

Family

US 9,406,723 B2Related patent
US 2015/0102297 A1This patent

From the US filing history. Foreign family members aren’t listed.

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