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US 9,691,572 B2Granted
Key button
AssigneeNEC Platforms, Ltd.
InventorTadamine Toh
Life of this patent
Estimating the term…
Abstract
Disclosed is key button (4) that includes a display surface on which character section (A) is formed, and a side face extending in a direction to intersect the display surface. The key button further includes transmission section (6) made of a light transmissive material, which constitutes the display surface and the side face, and shielding section (7) made of a light shielding material, which covers only a part of transmission section (6) other than character section (A) of the display surface.
Claims4
A key button comprising:
- a transmission section made of a light transmissive material, which constitutes one display surface on which a character section is formed, and a side face extending in a direction to intersect the display surface;
- and
- a shielding section made of a light shielding material, which covers only the display surface of the transmission section other than the character section and does not cover the side face of the transmission section,
- wherein the shielding section has an inverted trapezoidal shape with respect to a cross section taken in a plane perpendicular to the display surface.
1 more element
A device comprising:
- a key button comprising:
- a transmission section made of:
- a light transmissive material, which constitutes one display surface on which a character section is formed, and
- a side face extending in a direction to intersect the display surface;
- and
- a shielding section, made of a light shielding material, which covers only the display surface of the transmission section other than the character section and does not cover the side face of the transmission section,
- wherein:
- the shielding section has an inverted trapezoidal shape with respect to a cross section taken in a plane perpendicular to the display surface;
- and
- a housing that surrounds the key button,
- wherein, in a direction orthogonal to the display surface, the surface of the transmission section in contact with the shielding section is located outside an outer surface of the housing.
8 more elements
A character displaying method, for a key button, comprising:
- providing a transmission section made of a light transmissive material, which constitutes one display on which a character section is formed, and a side face extending in a direction to intersect the display surface;
- and
- providing a shielding section made of a light shielding material, which covers only the display surface of the transmission section other than the character section and does not cover the side face of the transmission section;
- wherein the shielding section has an inverted trapezoidal shape with respect to a cross section taken in a plane perpendicular to the display surface.
1 more element
Dependencies are inferred from the claim text.