Light-emitting element including a charge injection transport layer having a recess portion for accumulating ink, and display device and method for manufacturing thereof
First Claim
1. A light emitter, comprising:
- a first electrode;
a charge injection transport layer;
a light-emitting layer; and
a second electrode, said first electrode, said charge injection transport layer, said light-emitting layer and said second electrode being layered in this order, at least said light-emitting layer being defined by a bank, whereinsaid charge injection transport layer includes a recessed portion, said recessed portion including an inner bottom surface that is in contact with a bottom surface of said light-emitting layer and an inner side surface that is continuous with said inner bottom surface, said inner side surface being in contact at least with a part of a side surface of said light-emitting layer,said inner side surface of said recessed portion having a lower edge continuous with said inner bottom surface, and an upper edge at least one of aligned with a portion of a bottom periphery of said bank that contacts said light-emitting layer, and contacting a bottom surface of said bank.
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Accused Products
Abstract
A light emitter and method for manufacturing a light emitter. The light emitter includes a first electrode, a charge injection transport layer, a light-emitting layer, and a second electrode that are layered in this order. At least the light-emitting layer is defined by bank. The charge injection transport layer includes a recessed portion having an inner bottom surface in contact with a bottom surface of the light-emitting layer and an inner side surface continuous with the inner bottom surface and in contact at least partly with a side surface of the light-emitting layer. The inner side surface has a lower edge continuous with the inner bottom surface, and an upper edge is aligned with a portion of a bottom periphery of the bank, the portion being in contact with the light-emitting layer or in contact with a bottom surface of the bank.
56 Citations
24 Claims
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1. A light emitter, comprising:
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a first electrode; a charge injection transport layer; a light-emitting layer; and a second electrode, said first electrode, said charge injection transport layer, said light-emitting layer and said second electrode being layered in this order, at least said light-emitting layer being defined by a bank, wherein said charge injection transport layer includes a recessed portion, said recessed portion including an inner bottom surface that is in contact with a bottom surface of said light-emitting layer and an inner side surface that is continuous with said inner bottom surface, said inner side surface being in contact at least with a part of a side surface of said light-emitting layer, said inner side surface of said recessed portion having a lower edge continuous with said inner bottom surface, and an upper edge at least one of aligned with a portion of a bottom periphery of said bank that contacts said light-emitting layer, and contacting a bottom surface of said bank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A light emitter, comprising:
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a first electrode; a charge injection transport layer; an intermediate layer; a light-emitting layer; and a second electrode, said first electrode, said charge injection transport layer, said intermediate layer, said light-emitting layer and said second electrode being layered in this order, at least said light-emitting layer being defined by a bank, wherein said charge injection transport layer includes a recessed portion, said recessed portion including an inner bottom surface that is in contact with a bottom surface of said intermediate layer and an inner side surface that is continuous with said inner bottom surface, said inner side surface being in contact at least with a part of a side surface of said intermediate layer, and said inner side surface of said recessed portion having a lower edge continuous with said inner bottom surface, and an upper edge at least one of aligned with a portion of a bottom periphery of said bank that contacts said intermediate layer, and contacting a bottom surface of said bank. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification