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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 T9ZhvXDWUWKFVC4yjzdgP0CP8LYycqFDD/PlVeOlgudSLlexpxuELdFrtl0BMYGI
 nY4RZrVQVTPDkO2hkutmHg==

<SEC-DOCUMENT>0001317467-06-000003.txt : 20061018
<SEC-HEADER>0001317467-06-000003.hdr.sgml : 20061018
<ACCEPTANCE-DATETIME>20061018165248
ACCESSION NUMBER:		0001317467-06-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061017
FILED AS OF DATE:		20061018
DATE AS OF CHANGE:		20061018

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:			0720

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blaney Lawrence C
		CENTRAL INDEX KEY:			0001317467

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12906
		FILM NUMBER:		061151295

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		630-208-2371

	MAIL ADDRESS:	
		STREET 1:		40W267 KESLINGER ROAD
		STREET 2:		P.O. BOX 393
		CITY:			LAFOX
		STATE:			IL
		ZIP:			60147
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-10-17</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001317467</rptOwnerCik>
            <rptOwnerName>Blaney Lawrence C</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 &amp; General Manager</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock $.05 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2006-06-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1386</value>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.96</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1554</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.58</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-10-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.58</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-10-17</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-10-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock $.05 pv ps</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option vests 20% per year, beginning 10/17/2007</footnote>
        <footnote id="F2">Option grant price of $8.58 which is the close price on the date of grant.</footnote>
        <footnote id="F3">Does not include 1,138 shares allocated to the account of the reporting person under the Richardson Electronics, ltd. Employees Stock Ownership Plan and Trust (&quot;ESOP&quot;) to which shares beneficial ownership is disclaimed.  Includes 84 common shares granted with a vesting on May 31, 2005.</footnote>
        <footnote id="F4">Shares acquired through the Richardson Electronics, Ltd. Employee Stock Purchase Plan, a 423 Stock Purchase Plan, on 6/2/06.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lisa Currie, attorney-in-fact for Larry Blaney</signatureName>
        <signatureDate>2006-10-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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