Display device and production method thereof
First Claim
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1. A display device comprising:
- a plurality of optical elements;
a sealing film sealing the plurality of optical elements and including a first inorganic layer, a second inorganic layer, and an organic layer provided between the first inorganic layer and the second inorganic layer; and
at least one organic layer stopper formed from a frame-shaped bank surrounding a display region on which the plurality of optical elements are provided, and defining edges of the organic layer,wherein the at least one organic layer stopper includes an organic layer stopper including a first frame portion surrounding the display region in a plan view and including a plurality of corner portions, and a second frame portion contiguous to the first frame portion, surrounding each of the plurality of corner portions of the first frame portion, and protruding from the first frame portion at the plurality of corner portions of the first frame portion with a space between the second frame portion and each of the plurality of corner portions of the first frame portion.
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Abstract
An organic EL display device includes, as an organic layer stopper defining edges of an organic layer, a frame-shaped bank surrounding a display region. An upper face of the bank includes recessed portions and protrusions including a plurality of protrusions, and upper faces of the protrusions includes planar portions.
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Citations
17 Claims
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1. A display device comprising:
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a plurality of optical elements; a sealing film sealing the plurality of optical elements and including a first inorganic layer, a second inorganic layer, and an organic layer provided between the first inorganic layer and the second inorganic layer; and at least one organic layer stopper formed from a frame-shaped bank surrounding a display region on which the plurality of optical elements are provided, and defining edges of the organic layer, wherein the at least one organic layer stopper includes an organic layer stopper including a first frame portion surrounding the display region in a plan view and including a plurality of corner portions, and a second frame portion contiguous to the first frame portion, surrounding each of the plurality of corner portions of the first frame portion, and protruding from the first frame portion at the plurality of corner portions of the first frame portion with a space between the second frame portion and each of the plurality of corner portions of the first frame portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17)
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15. A method for producing a display device including a plurality of optical elements, and a sealing film sealing the plurality of optical elements and including a first inorganic layer, a second inorganic layer, and an organic layer provided between the first inorganic layer and the second inorganic layer, the method comprising:
forming, as an organic layer stopper defining edges of the organic layer, at least one polygonal frame-shaped bank including corner portions, only the corner portions being formed in a double-frame shape, each of the corner portions including a first frame portion surrounding, in a plan view, a display region on which the plurality of optical elements are provided and including a plurality of corner portions, and a second frame portion contiguous to the first frame portion, surrounding each of the plurality of corner portions of the first frame portion, and protruding from the first frame portion at the plurality of corner portions of the first frame portion with a space between the second frame portion and each of the plurality of corner portions of the first frame portion, to hold back a liquid organic material that becomes the organic layer, using the at least one polygonal frame-shaped bank.
Specification