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US 2014/0111992 A1Published application
Leadframe-based surface mount technology segmented display design and method of manufacture
AssigneeAvago Technologies General IP (Singapore) Pte. Ltd.
InventorsHock Eu Raymond Yeoh, Yi Feng Hwang
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Abstract
A multi-segment display is disclosed. The multi-segment display includes substantially no hotspots and is substantially free of color discoloration that accompanies hotspots. The multi-segment display is configured for surface mounting. The multi-segment display is provided with a leadframe that fits into a package body thereby placing the light sources mounted on the leadframe in closer proximity to the encapsulant that fills vias of each segment.
Claims20
A segmented display, comprising:
- a package body including one or more vias and a cavity established by one or more sidewalls;
- a leadframe configured to support electronics on a top major surface thereof, the leadframe also being configured to be at least partially inserted into the cavity of the package body such that the top major surface of the leadframe places the electronics in proximity to at least one of the one or more vias of the package body;
- and
- an encapsulant configured to fill the cavity and substantially fix the leadframe relative to the package body.
1 more element
A multi-segment display, comprising:
- a first segment established in a package body, the first segment including a first via that extends between a top surface of the package body and an opposing inner surface of the package body;
- a second segment established in the package body, the second segment including a second via that extends between the top surface of the package body and the opposing inner surface of the package body;
- a first light source positioned in proximity to the first via;
- a second light source positioned in proximity to the second via;
- and
- an encapsulant that at least partially fills the first and second vias as well as at least a portion of a cavity established by sidewalls of the package body.
3 more elements
A method, comprising:
- emitting light from a first light source that is mounted on a leadframe, wherein the light emitted by the first light source travels directly to an encapsulant contained within a first segment of a multi-segmented display, and wherein the encapsulant also encapsulates the leadframe within a package body of the multi-segmented display;
- and
- emitting light from a second light source that is mounted on the leadframe, wherein the light emitted by the second light source directly to the encapsulant that is also contained within a second segment of the multi-segmented display.
Dependencies are inferred from the claim text.