Organic electroluminescent module and method of manufacturing the same
AssigneeKonica Minolta, Inc.
InventorNatsuki Yamamoto
Life of this patent
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Abstract
An organic electroluminescent module of the present invention includes an organic EL panel and an electrical connection unit. The electrical connection unit includes a flexible substrate including a body disposed adjacent to a light-emitting surface of the organic EL panel, and a contact piece defined by a cutout in the body and disposed remote from the light-emitting surface of the organic EL panel; a capacitance sensing circuit and drive circuits formed on a surface of the body; lands formed on a surface of the contact piece; and metal layers formed on a surface of the contact piece in portions overlapping with the lands.
Claims6
An organic electroluminescent module comprising:
- an organic electroluminescent panel;
- and
- an electrical connection unit disposed on a light-emitting side of the organic electroluminescent panel, the electrical connection unit comprising:
- a flexible substrate comprising:
- a body disposed on the light-emitting side and periphery of the organic electroluminescent panel;
- and
- a contact piece defined by at least one cutout in the body and disposed on the opposite side to the light-emitting side of the organic electroluminescent panel;
- a capacitance sensing circuit disposed on one surface of the body;
- drive circuits disposed on the one surface of the body and configured to drive the organic electroluminescent panel;
- lands disposed on one surface of the contact piece and connecting the drive circuits to the organic electroluminescent panel;
- and
- metal layers disposed on the other surface of the contact piece in portions overlapping with the lands.
A method of manufacturing an organic electroluminescent module comprising:
- an organic electroluminescent panel;
- and
- an electrical connection unit disposed on a light-emitting side of the organic electroluminescent panel, the method comprising the steps of:
- forming, on one surface of the flexible substrate, a capacitance sensing circuit, drive circuits configured to drive the organic electroluminescent panel, and lands connecting the drive circuits to the organic electroluminescent panel;
- forming metal layers on the other surface of the flexible substrate in portions overlapping with the lands;
- fabricating the electrical connection unit by providing at least one cutout on the periphery of the lands of the flexible substrate, the cutout defining a body including the sensing circuit and the drive circuits and a contact piece including the lands and the metal layers;
- sliding the organic electroluminescent panel in the surface direction of the contact piece into a gap between the body and the contact piece of the flexible substrate;
- and
- bonding contact electrodes of the organic electroluminescent panel to the contact piece of the electrical connection unit by thermal compression.
Dependencies are inferred from the claim text.