Manufacturing method of display device
AssigneeMagnolia White Corporation
InventorAtsushi TAKEDA
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Abstract
According to an embodiment, a manufacturing method allows the manufacture of a display device including a partition including a lower portion provided on a rib including a pixel aperture and an upper portion protruding from a side surface of the lower portion. The method includes forming a lower electrode, forming a rib layer, forming a lower layer, forming an upper layer, forming a resist, forming the rib by a first etching process, forming the upper portion by a second etching process after the first etching process, and forming the lower portion by a third etching process after the second etching process.
Claims19
A display device comprising:
- a substrate;
- a rib disposed on the substrate and defining a pixel aperture;
- a partition overlapping the rib in plan view, the partition including a lower portion and an upper portion, the upper portion having a width greater than a width of the lower portion so that end portions of the upper portion protrude beyond side surfaces of the lower portion;
- an organic layer;
- and
- an upper electrode;
- wherein
- a shadow area formed on the rib adjacent the partition has thicknesses of the organic layer and of the upper electrode that decrease toward the side surface of the lower portion,
- the shadow area is entirely located on the rib without overlapping any pixel aperture, and
- a rib width W0, an upper-portion width W1, and a shadow area width Ws satisfy W0≥W1+2·Ws.
Dependencies are inferred from the claim text.