An optical touch device includes a transparent substrate and at least a light emitting and receiving unit. The transparent substrate has a touch surface, a first light incidence surface and a first light emitting surface. Each light emitting and receiving unit includes a linear light source, a light.....
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The present invention relates to a computer system capable of adjusting the operating frequency dynamically and comprises at least a processor voltage-adjusting unit, a clock-generating circuit, at least a load-detecting unit, and a control unit. The processor voltage-adjusting unit and the clock-ge.....
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A semiconductor element and a manufacturing method thereof are provided. The semiconductor element includes a substrate and multiple semiconductor chips disposed thereon. The semiconductor chips are arranged to form multiple sequentially nested circle(s), and a circumference of each of which is arra.....
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A LED lamp and an optical lens thereof are provided. The LED lamp includes a LED light source and an optical lens covering the LED light source. The optical lens includes a dome structure and a protrusion structure. The dome structure has an external surface. The protrusion structure is disposed pro.....
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The present invention discloses a data processing device and a motherboard thereof. The feature of the present invention is separating the motherboard thereof into two daughter boards. The first daughter board is fixed to the data processing device, and the second daughter board is connected to the .....
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