| 摘要 |
PROBLEM TO BE SOLVED: To reduce adverse influence of display while suppressing a voltage amplitude of a data line small with simple constitution. SOLUTION: In an electrooptical device, a pixel 110 includes a pixel capacitor and a storage capacitor having one end connected to a pixel electrode and the other end connected to a capacitance line 132. Capacitance lines 132 are provided corresponding to lines 1 to 320 respectively, and a capacitance line driving circuit 150 has a pair of TFTs 151 and 152 for each of the lines 1 to 320. A detecting circuit 170 has a pair of TFTs 176 and 178 for each of the lines. Here, when a scanning line of an (i)th line is selected, TFTs 151 and 152 turn on. Then, a first capacitance signal output circuit 31 outputs a first capacitance signal Vc1 to a first feeder 165 so that a first detection line 185 has the voltage of a first target signal Vc1ref. When a scanning right right below the line of interest is selected, TFTs 152 and 178 turn on, and a second capacitance signal output circuit 32 outputs a second capacitance signal Vc2 to a second feeder 167 so that a second detection line 187 has the voltage of a second target signal Vc2ref. COPYRIGHT: (C)2008,JPO&INPIT
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