Pixel circuits for liquid crystal on silicon phase modulator

A circuit for controlling a pixel electrode of a liquid crystal on silicon phase modulator, comprising:

• a data line;
• two data transfer controllers;
• two storage units;
• and
• two amplification circuits,
• wherein a first controller enabled by a first control signal to store a first analog data signal containing pixel data in a first storage unit,
• wherein the data is then coupled by the first amplification circuitry to the input of the second controller enabled by a second control signal to couple the output of the amplification circuitry to a second storage unit, thereby storing a second analog data signal proportional to the first analog data signal in the second storage unit;
• and the second storage unit is directly coupled to second amplification circuitry;
• the output voltages, which is proportional to the second analog data signal, is generated at output electrode to drive liquid crystal element to perform optical phase modulation in a liquid crystal on silicon phase modulator;
• the first amplification circuitry and second controller provide isolation between the first storage unit and the second storage unit, and
• wherein the second amplification circuitry provides the isolation between the second storage unit and the output electrode.

A circuit for controlling a pixel electrode of a liquid crystal on silicon phase modulators is composed of a data line, two data transfer controllers, two storage units that are connected to two voltage boosters, and two amplification circuits;

• the first voltage booster is set to 0V when data is transferring to first storage unit through first controller;
• the first voltage booster is then set to a desired voltage and the second voltage booster is set to 0V when the data is transferring through the second controller to the second storage unit;
• the second voltage booster is then set to a desired voltage and the second amplifier charges the pixel output electrode to drive liquid crystal elements;
• and the first voltage booster is set back to 0V before starting to load next frame data into pixels.

A system for controlling a pixel electrode of a liquid crystal on silicon backplane phase modulator, the system comprising:

• a first data transfer controller and a second data transfer controller,
• one data storage unit,
• a voltage booster, and
• a signal amplification unit with a pull-down unit.

A system for controlling a pixel electrode of a liquid crystal on silicon phase modulator, the system comprising:

• a data line,
• a first data transfer controller and a second data transfer controller,
• a first storage unit and a second storage unit, and
• a first amplification circuit and a second amplification circuit, wherein
• the first data transfer controller is enabled by a first control signal to store a first analog data signal containing pixel data in a first storage unit;
• wherein the data is then coupled by the first amplification circuit to the input of the second data transfer controller enabled by a second control signal to couple the output of the amplification circuits to the second storage unit, thereby storing a second analog data signal proportional to the first analog data signal in the second storage unit;
• and
• the second storage unit is directly coupled to second amplification circuit;
• wherein the output voltage, which is proportional to the second analog data signal, is generated at output electrode to drive a liquid crystal element to perform optical phase modulation in the liquid crystal on the silicon phase modulator;
• wherein the first amplification circuit and second data transfer controller provide isolation between the first storage unit and the second storage unit, and the second amplification circuit provides isolation between the second storage unit and an output electrode.

A system for controlling a pixel electrode of a liquid crystal on silicon phase modulators, the system comprising:

• a data line,
• a first data transfer controller and a second data transfer controller,
• a first storage unit and a second storage unit that are connected to a first voltage booster and a second voltage booster, and
• two amplification circuits;
• wherein the first voltage booster is set to 0V when data is transferring to the first storage unit through first data transfer controller;
• the first voltage booster is then set to a predetermined voltage and the second voltage booster is set to 0V when the data is transferring through the second data transfer controller to the second storage unit;
• the second voltage booster is then set to a predetermined voltage and the second amplification circuit charges the pixel output electrode to drive liquid crystal elements;
• and the first voltage booster is set back to 0V before starting to load next frame data into pixels.