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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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. |
format | Patent |
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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. Such process is iterated in the liquid crystal on silicon (LCOS) working time.</description><language>eng ; fre ; ger</language><subject>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</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20241023&DB=EPODOC&CC=EP&NR=4449195A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20241023&DB=EPODOC&CC=EP&NR=4449195A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MAO, Chongchang</creatorcontrib><creatorcontrib>JOHNSON, Kristina</creatorcontrib><creatorcontrib>JI, Lianhua</creatorcontrib><title>PIXEL CIRCUITS FOR LIQUID CRYSTAL ON SILICON PHASE MODULATOR</title><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.</description><subject>ADVERTISING</subject><subject>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</subject><subject>CRYPTOGRAPHY</subject><subject>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</subject><subject>DISPLAY</subject><subject>EDUCATION</subject><subject>FREQUENCY-CHANGING</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>SEALS</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAJ8Ixw9VFw9gxyDvUMCVZw8w9S8PEMDPV0UXAOigwOcfRR8PdTCPb08XQG0gEejsGuCr7-LqE-jiH-QTwMrGmJOcWpvFCam0HBzTXE2UM3tSA_PrW4IDE5NS-1JN41wMTExNLQ0tTR0JgIJQDHvili</recordid><startdate>20241023</startdate><enddate>20241023</enddate><creator>MAO, Chongchang</creator><creator>JOHNSON, Kristina</creator><creator>JI, Lianhua</creator><scope>EVB</scope></search><sort><creationdate>20241023</creationdate><title>PIXEL CIRCUITS FOR LIQUID CRYSTAL ON SILICON PHASE MODULATOR</title><author>MAO, Chongchang ; JOHNSON, Kristina ; JI, Lianhua</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4449195A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2024</creationdate><topic>ADVERTISING</topic><topic>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</topic><topic>CRYPTOGRAPHY</topic><topic>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</topic><topic>DISPLAY</topic><topic>EDUCATION</topic><topic>FREQUENCY-CHANGING</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>SEALS</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><toplevel>online_resources</toplevel><creatorcontrib>MAO, Chongchang</creatorcontrib><creatorcontrib>JOHNSON, Kristina</creatorcontrib><creatorcontrib>JI, Lianhua</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MAO, Chongchang</au><au>JOHNSON, Kristina</au><au>JI, Lianhua</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PIXEL CIRCUITS FOR LIQUID CRYSTAL ON SILICON PHASE MODULATOR</title><date>2024-10-23</date><risdate>2024</risdate><abstract>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.</abstract><oa>free_for_read</oa></addata></record> |
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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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