Display device and manufacturing method therefor
AssigneeJapan Display Inc.
InventorKazuhiro ODAKA
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Abstract
A display device includes a display area with a plurality of pixels arranged therein. Each of the plurality of pixels has a pixel electrode with a three-layer structure including an upper layer, an interlayer, and a lower layer. Each of the upper layer and the lower layer is formed from indium tin oxide or indium zinc oxide. The interlayer is formed from silver. The interlayer has a periphery not extending beyond a periphery of the lower layer. The upper layer covers the interlayer in whole and extends to at least the periphery of the lower layer, in contact with a peripheral edge surface of the interlayer and in contact with the lower layer around the interlayer.
Claims12
A display device comprising a display area with a plurality of pixels arranged therein, wherein
- each of the plurality of pixels has a pixel electrode with a three-layer structure including an upper layer, an interlayer, and a lower layer,
- each of the upper layer and the lower layer is formed from indium tin oxide or indium zinc oxide,
- the interlayer is formed from silver,
- the interlayer has a periphery not extending beyond a periphery of the lower layer, and
- the upper layer covers the interlayer in whole and extends to at least the periphery of the lower layer, in contact with a peripheral edge surface of the interlayer and in contact with the lower layer around the interlayer.
A manufacturing method for a display device comprising:
- forming a first conductive film from indium tin oxide or indium zinc oxide;
- forming a second conductive film from silver to be laminated on the first conductive film;
- forming a lower layer and an interlayer of each of a plurality of pixel electrodes by collective etching of the first conductive film and the second conductive film, with a periphery of the interlayer not extending beyond a periphery of the lower layer;
- forming a third conductive film from the indium tin oxide or the indium zinc oxide to be laminated on the lower layer and the interlayer;
- and
- forming an upper layer of each of the plurality of pixel electrodes by etching of the third conductive film, wherein
- the upper layer is formed to cover the interlayer in whole and extend to at least the periphery of the lower layer, to be in contact with a peripheral edge surface of the interlayer, and to be in contact with the lower layer around the interlayer.
Dependencies are inferred from the claim text.