| 摘要 |
<p>PURPOSE: A semiconductor device and a shift register reduce power consumption by controlling rewriting, storing, and reading of stored data of a capacitive element. CONSTITUTION: A logic circuit (101) receives a data signal through an input terminal. A capacitive element (102) includes a pair of electrodes, one of which is supplied with a power potential or a ground potential and the other of which is supplied with a potential of the input terminal of the logic circuit, so that data of the data signal is written as stored data. A transistor (103) controls rewriting, storing and reading of the stored data by controlling conduction between the input terminal of the logic circuit and the other of the pair of electrodes of the capacitive element. The off-state current per micrometer of a channel width of the transistor is lower than or equal to 100 zA.</p> |
