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US 9,040,961 B2Granted
Organic light emitting diode display and method for manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorTae-Jin Kim
Life of this patent
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Abstract
An organic light emitting diode (OLED) display includes a substrate main body, a plurality of organic light emitting elements on the substrate main body, a column spacer on the substrate main body and between two or more of the plurality of organic light emitting elements, and an encapsulation thin film covering at least one of the organic light emitting elements and having regions divided by the column spacer.
Claims13
An organic light emitting diode (OLED) display comprising:
- a substrate main body;
- a plurality of organic light emitting elements on the substrate main body;
- a column spacer on the substrate main body, spaced apart from and between two or more of the plurality of organic light emitting elements;
- and
- an encapsulation thin film comprising a plurality of layers, a bottom layer of which covering and contacting at least one of the organic light emitting elements and contacting the substrate main body, the encapsulation thin film having regions divided by the column spacer, the column spacer being between and separating portions of the encapsulation thin film,
- wherein the bottom layer of the encapsulation thin film is formed by being deposited through an opening part of a first deposition mask that is narrower than an opening part of a second deposition mask wherein a higher layer of the encapsulation thin film is deposited through the opening part of the second deposition mask such that a contact area between the higher layer of the encapsulation thin film and the column spacer is greater than a contact area between the bottom layer and the column spacer.
3 more elements
A method of manufacturing an organic light emitting diode (OLED) display, the method comprising:
- providing a substrate main body;
- forming a plurality of organic light emitting elements on the substrate main body;
- forming a column spacer on the substrate main body spaced apart from and between two or more of the organic light emitting elements;
- and
- forming an encapsulation thin film covering at least one of the organic light emitting elements and having regions divided by the column spacer, the column spacer being between and separating portions of the encapsulation thin film,
- wherein forming the encapsulation thin film comprises depositing a lower layer of the encapsulation thin film through an opening part of a first deposition mask, and depositing a higher layer of the encapsulation thin film through an opening part of a second deposition mask, wherein the opening part of the second deposition mask is wider than the opening part of the first deposition mask such that a contact area between the higher layer of the encapsulation thin film and the column spacer is greater than a contact area between the lower layer and the column spacer.
3 more elements
A method of manufacturing an organic light emitting diode (OLED) display, the method comprising:
- providing a substrate main body;
- forming a plurality of organic light emitting elements on the substrate main body;
- forming a column spacer on the substrate main body between two or more of the organic light emitting elements;
- forming an encapsulation thin film covering at least one of the organic light emitting elements and having regions divided by the column spacer, wherein the encapsulation thin film comprises a plurality of layers;
- depositing the encapsulation thin film on the substrate main body using a deposition mask comprising a shield part corresponding to the column spacer and an opening part corresponding to the at least one of the organic light emitting elements and a circumference thereof;
- and
- gradually widening the opening part of the deposition mask from depositing a lowest layer to depositing a highest layer of the encapsulation thin film.
4 more elements
Dependencies are inferred from the claim text.