-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 E4XCiUEzDo26q4gOm81D8DHeB8c+GCbykyVtxQI817IJAKuK2kX0Nil0W4YVhbBw
 p01OSnon6s4VizCOCS6vAg==

<SEC-DOCUMENT>0001348573-06-000002.txt : 20060110
<SEC-HEADER>0001348573-06-000002.hdr.sgml : 20060110
<ACCEPTANCE-DATETIME>20060110164225
ACCESSION NUMBER:		0001348573-06-000002
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060110
FILED AS OF DATE:		20060110
DATE AS OF CHANGE:		20060110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Gilmartin David J
		CENTRAL INDEX KEY:			0001348573

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12906
		FILM NUMBER:		06522779

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		630-208-2371

	MAIL ADDRESS:	
		STREET 1:		40W267 KESLINGER ROAD
		CITY:			LAFOX
		STATE:			IL
		ZIP:			60147

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RICHARDSON ELECTRONICS LTD/DE
		CENTRAL INDEX KEY:			0000355948
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRONIC PARTS & EQUIPMENT, NEC [5065]
		IRS NUMBER:				362096643
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		40W267 KESLINGER RD
		CITY:			LAFOX
		STATE:			IL
		ZIP:			60147
		BUSINESS PHONE:		7082082200

	MAIL ADDRESS:	
		STREET 1:		40W267 KESLINGER ROAD
		CITY:			LAFOX
		STATE:			IL
		ZIP:			60147
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2006-01-10</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000355948</issuerCik>
        <issuerName>RICHARDSON ELECTRONICS LTD/DE</issuerName>
        <issuerTradingSymbol>REL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001348573</rptOwnerCik>
            <rptOwnerName>Gilmartin David J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>40W267 KESLINGER ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAFOX</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60147</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, General Counsel &amp; Sec.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1405</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.35</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2006-10-19</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-10-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option Grant vests over 5 years starting 10/19/06</footnote>
        <footnote id="F2">Restricted Stock Award vests over 5 years starting 7/1/05</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lisa Currie, attorney-in-fact for David J. Gilmartin</signatureName>
        <signatureDate>2006-01-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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