Light source module and keyboard having the same
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Aug 15, 2013
filing date -
Aug 15, 2012
priority date (Note) -
Abandoned
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Abstract
A light source module includes a light guide plate, a reflective plate, and at least one light emitting component. The reflective plate is provided at one side of the light guide plate, and the light emitting component is adjacent to the light guide plate. The light guide plate has at least one surface having an array of plural transparent microstructures. Each of the transparent microstructures has at least one inclined angle on its lateral side. The inclined angles, the sides, and the arrangement density of the transparent microstructures can be the same or changed depending on the positions of the transparent microstructures. The shape of the transparent microstructure can be changed for different requirements. By changing the inclined angles, the sides, and the arrangement density of the transparent microstructures, the light brightness and the light uniformity can be enhanced, and the visual perception of light brightness can be increased.
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