25-04-2019 дата публикации
Номер: US20190122836A1
Принадлежит:
A light-emitting assembly positioned within a switch housing of a keyboard assembly for an electronic device is disclosed. The light-emitting assembly may include a phosphor structure, a transparent material positioned on opposing side surfaces of the phosphor structure, and an epoxy layer formed over an entire back surface of the phosphor structure and the transparent material. The light-emitting assembly may also include a mask layer formed over an entire top surface of: the phosphor structure, the transparent material, and the epoxy layer. The light-emitting assembly may further include a light source positioned within the phosphor structure for emitting a light. 1. A keyboard , comprising:a substrate;a tactile dome positioned above the substrate;a keycap positioned above the tactile dome and configured to move when pressed; a light source;', 'an opaque material defining a first side of the light-emitting assembly, wherein light from the light source is prevented from passing through the opaque material;', 'a luminescent structure at least partially enclosing the light source and defining second, third, and fourth sides of the light-emitting assembly, at least one of the second, third, and fourth sides being positioned opposite the first side; and, 'a light-emitting assembly electrically connected to the substrate, the light-emitting assembly comprisingwherein light from the light source is directable through the second, third, and fourth sides of the light-emitting assembly to illuminate the keycap.2. The keyboard of claim 1 , wherein the second claim 1 , third claim 1 , and fourth sides are orthogonal to each other.3. The keyboard of claim 1 , wherein the second claim 1 , third claim 1 , and fourth sides are laterally facing relative to an axis of movement of the keycap.4. The keyboard of claim 1 , wherein the light-emitting assembly further comprises an electrical lead extending through the luminescent structure and in electrical communication with the ...
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