Light emitting sheet and manufacturing method thereof
First Claim
1. A light-emitting sheet comprising:
- a first electrode;
a second electrode;
a light-emitting layer disposed between the first electrode and the second electrode; and
a short circuit preventing member composed of an insulator arranged continuously on at least a first peripheral portion of the light-emitting layer such that a part of the short circuit preventing member projects from the light-emitting layer,wherein, on a second peripheral portion of the light-emitting layer in which the short circuit preventing member is not arranged or not arranged in such a way that the part of the short circuit preventing member projects from the light-emitting layer, at least one of the first electrode and the second electrode has a cut-out portion that forms a non-conductive section electrically disconnected from a circuit for applying a voltage to the light-emitting sheet.
1 Assignment
0 Petitions
Accused Products
Abstract
A light-emitting sheet which does not cause failures such as a short circuit without causing dielectric breakdown at the end of element at applying a voltage and which is able to realize stable driving, and an efficient method for producing the light-emitting sheet, are provided. Specifically, a light-emitting sheet having a first electrode, a second electrode, and a light-emitting layer disposed between the first and the second electrodes, wherein a short circuit preventing member composed of an insulator is arranged on the periphery of the light-emitting layer in such a way that a part of the member is projected from the light-emitting layer, and an efficient method for producing the light-emitting sheet, are provided.
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Citations
20 Claims
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1. A light-emitting sheet comprising:
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a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and a short circuit preventing member composed of an insulator arranged continuously on at least a first peripheral portion of the light-emitting layer such that a part of the short circuit preventing member projects from the light-emitting layer, wherein, on a second peripheral portion of the light-emitting layer in which the short circuit preventing member is not arranged or not arranged in such a way that the part of the short circuit preventing member projects from the light-emitting layer, at least one of the first electrode and the second electrode has a cut-out portion that forms a non-conductive section electrically disconnected from a circuit for applying a voltage to the light-emitting sheet. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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7. A method for producing a light-emitting sheet having a first electrode, a second electrode and a light-emitting layer disposed between the first electrode and the second electrode, the method comprising:
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producing, using a roll-to-roll process, the light-emitting sheet; arranging a short circuit preventing member composed of an insulator continuously on peripheral portions of both sides of the light-emitting layer in a flow direction of the light-emitting layer such that a part of the short circuit preventing member projects from the light-emitting layer; and cutting at least one of the first electrode and the second electrode adjacent to the peripheral portions of both sides of the light-emitting layer along a width direction of the light-emitting layer to form a non-conductive section electrically disconnected from a circuit for applying a voltage to the light-emitting sheet. - View Dependent Claims (19)
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8. A method for producing a light-emitting sheet having a first electrode, a second electrode and a light-emitting layer disposed between the first electrode and the second electrode, the method comprising:
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producing the light-emitting sheet using a roll-to-roll process; arranging a short circuit preventing member composed of an insulator continuously on a first peripheral portion of a first side of the light-emitting layer along a flow direction of the light-emitting layer such that a part of the short circuit preventing member projects from the light-emitting layer; cutting the second electrode, which is disposed on or under a second peripheral portion of a second side of the light-emitting layer, to form a first non-conductive section electrically disconnected from a circuit for applying a voltage to the light-emitting sheet; and cutting at least one of the first electrode and the second electrode adjacent to the first peripheral portion of the first side of the light-emitting layer and adjacent to the second peripheral portion of the second side of the light-emitting layer along a width direction of the light-emitting layer to form a second non-conductive section electrically disconnected from the circuit for applying a voltage to the light-emitting sheet. - View Dependent Claims (20)
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Specification