Liquid crystal display device, method of driving liquid crystal display device, and electronic apparatus
View Patent ↗A liquid crystal display device is provided. The liquid crystal including an array of pixels each having a memory function; and a buffer to output a first voltage, wherein a second voltage is supplied to a counter electrode of a liquid crystal capacitor, and wherein each of the pixels supplies one of the first voltage and the second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels.
1. A liquid crystal display device comprising:
an array of pixels each having a memory function;
a first buffer to supply a common voltage to a counter electrode of a liquid crystal capacitor,
a second buffer to output a first voltage that is in phase with the common voltage, and
a third buffer to output a second voltage that is in opposite phase with the second voltage,
wherein each of the pixels supplies one of a first voltage and a second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels,
the common voltage, the first voltage, and the second voltage have a same amplitude,
the first buffer, the second buffer, and the third buffer commonly have a power supply;
the frequency of the common voltage, the first voltage, and the second voltage is 120 Hz.
2. A liquid crystal display device comprising:
an array of pixels each having a memory function;
a first buffer to output a common voltage,
a second buffer to output a first voltage that is in phase with the common voltage; and
a third buffer to output a second voltage that is in opposite phase with the common voltage,
wherein each of the pixels supplies one of a first voltage and a second voltage to a pixel electrode of a liquid crystal capacitor according to a data value stored in the each of the pixels,
the first buffer, the second buffer, and the third buffer commonly have a first power supply;
an off-set voltage is supplied to a counter electrode of the liquid crystal capacitor from a second power supply different from the first power supply; and
the first buffer and the array of the pixels form capacitors.
3. A liquid crystal display device comprising:
an array of pixels each having a memory function;
a first buffer to supply a common voltage to a counter electrode of a liquid crystal capacitor,
a second buffer to output a first voltage that is in phase with the common voltage; and
a third buffer to output a second voltage that is in opposite phase with the common voltage,
wherein each of the pixels supplies one of a first voltage and a second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels,
the second buffer and the third buffer commonly have a first power supply;
the first voltage and the second voltage have a same amplitude,
the first buffer is supplied with power from a positive power supply and a negative power supply that are different from the first power supply,
an amplitude of the common voltage is the same as a voltage difference between the positive power supply and the negative power supply.