PIXEL CIRCUITS FOR LIQUID CRYSTAL ON SILICON PHASE MODULATOR

Disclosed herein is a frame buffer pixel circuit having a first data pass gate transistor G1, first storage capacitor C1, a voltage boosting line Vb, source follower transistor F, pull-down transistor P, and second data pass gate transistor G2. The pull-down transistor P is connected to the drain of...

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Hauptverfasser: MAO, Chongchang, JOHNSON, Kristina, JI, Lianhua
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creator MAO, Chongchang
JOHNSON, Kristina
JI, Lianhua
description Disclosed herein is a frame buffer pixel circuit having a first data pass gate transistor G1, first storage capacitor C1, a voltage boosting line Vb, source follower transistor F, pull-down transistor P, and second data pass gate transistor G2. The pull-down transistor P is connected to the drain of transistor F and source of transistor G2 and the storage capacitor C1 is connected to a voltage boosting line Vb. In the operation, Vb is set to zero volt when data is transferring to C1 capacitor through G1 gate. After the frame data are loaded onto C1 capacitors in all pixels, Vb is set to designed voltage and G2 gates in all pixels are opened to charge Clcd capacitors. Vb is then set to zero volt again before starting to load next frame data onto pixels. Such process is iterated in the liquid crystal on silicon (LCOS) working time.
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The pull-down transistor P is connected to the drain of transistor F and source of transistor G2 and the storage capacitor C1 is connected to a voltage boosting line Vb. In the operation, Vb is set to zero volt when data is transferring to C1 capacitor through G1 gate. After the frame data are loaded onto C1 capacitors in all pixels, Vb is set to designed voltage and G2 gates in all pixels are opened to charge Clcd capacitors. Vb is then set to zero volt again before starting to load next frame data onto pixels. 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language eng ; fre ; ger
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subjects ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DISPLAY
EDUCATION
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEALS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
title PIXEL CIRCUITS FOR LIQUID CRYSTAL ON SILICON PHASE MODULATOR
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