Semiconductor device and manufacturing method thereof
First Claim
1. A semiconductor device comprising:
- an antenna;
an integrated circuit including an identification number, the integrated circuit operationally connected to the antenna;
a display element including a thin film transistor over a substrate;
a rectifier circuit for generating a direct voltage from an electromagnetic wave receive by the antenna;
a constant voltage circuit for receiving the direct voltage from the rectifier circuit and supplying a first voltage to the integrated circuit; and
a displaying power source circuit for receiving the direct voltage from the rectifier circuit and supplying a second voltage to the display element,wherein the direct voltage is supplied from the rectifier circuit to the displaying power source circuit without passing through the constant voltage circuit.
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Accused Products
Abstract
To provide a wireless identification semiconductor device provided with a display function, which is capable of effectively utilizing electric power supplied by an electromagnetic wave. The following are included: an antenna; a power source generating circuit electrically connected to the antenna; an IC chip circuit and a display element electrically connected to the power source generating circuit; a first TFT provided in the power source generating circuit; a second TFT provided in the IC chip circuit; a third TFT provided in the display element; an insulating film provided to cover the first to third TFTs; a first source electrode and a first drain electrode, a second source electrode and a second drain electrode, and a third source electrode and a third drain electrode which are formed over the insulating film; and a pixel electrode electrically connected to the third source electrode or the third drain electrode. The first source electrode or the first drain electrode is electrically connected to the antenna.
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Citations
15 Claims
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1. A semiconductor device comprising:
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an antenna; an integrated circuit including an identification number, the integrated circuit operationally connected to the antenna; a display element including a thin film transistor over a substrate; a rectifier circuit for generating a direct voltage from an electromagnetic wave receive by the antenna; a constant voltage circuit for receiving the direct voltage from the rectifier circuit and supplying a first voltage to the integrated circuit; and a displaying power source circuit for receiving the direct voltage from the rectifier circuit and supplying a second voltage to the display element, wherein the direct voltage is supplied from the rectifier circuit to the displaying power source circuit without passing through the constant voltage circuit. - View Dependent Claims (2, 3, 4, 5)
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6. A semiconductor device comprising:
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an antenna; an integrated circuit including an identification number, the integrated circuit operationally connected to the antenna; a display element over a substrate; a rectifier circuit for generating a direct voltage from an electromagnetic wave received by the antenna; a constant voltage circuit for receiving the direct voltage from the rectifier circuit and supplying a first voltage to the integrated circuit; and a displaying power source circuit for receiving the direct voltage from the rectifier circuit and supplying a second voltage to the display element, wherein the direct voltage is supplied from the rectifier circuit to the displaying power source circuit without passing through the constant voltage circuit. - View Dependent Claims (7, 8, 9, 10)
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11. A semiconductor device comprising:
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an antenna; an integrated circuit; a display element over a substrate, the display element comprising an electrophoresis element; a rectifier circuit for generating a direct voltage from an electromagnetic wave received by the antenna; a constant voltage circuit for receiving the direct voltage from the rectifier circuit and supplying a first voltage to the integrated circuit; and a displaying power source circuit for receiving the direct voltage from the rectifier circuit and supplying a second voltage to the display element, wherein the direct voltage is supplied from the rectifier circuit to the displaying power source circuit without passing through the constant voltage circuit. - View Dependent Claims (12, 13, 14, 15)
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Specification