2.0.0.10 true Sheet 101 - Document - Document and Entity Information Document and Entity Information http://www.lgdisplay.com/taxonomy/role/DocumentDocumentandEntityInformation false R1.xml false Sheet 103 - Statement - Consolidated Balance Sheets Consolidated Balance Sheets http://www.lgdisplay.com/taxonomy/role/StatementOfFinancialPositionClassified false R2.xml false Sheet 104 - Statement - Consolidated Balance Sheets (Parenthetical) Consolidated Balance Sheets (Parenthetical) http://www.lgdisplay.com/taxonomy/role/StatementOfFinancialPositionClassifiedParenthetical false R3.xml false Sheet 105 - Statement - Consolidated Statements of Income Consolidated Statements of Income http://www.lgdisplay.com/taxonomy/role/StatementOfIncome false R4.xml false Sheet 106 - Statement - Consolidated Statements of Stockholders' Equity and Comprehensive Income Consolidated Statements of Stockholders' Equity and Comprehensive Income http://www.lgdisplay.com/taxonomy/role/StatementOfShareholdersEquityAndOtherComprehensiveIncome false R5.xml false Sheet 107 - Statement - Consolidated Statements of Cash Flows Consolidated Statements of Cash Flows http://www.lgdisplay.com/taxonomy/role/StatementOfCashFlowsIndirect false R6.xml false Sheet 108 - Disclosure - Organization and Nature of Business Organization and Nature of Business http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsNatureOfOperations false R7.xml false Sheet 109 - Disclosure - Summary of Significant Accounting Policies Summary of Significant Accounting Policies http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock true R8.xml false Sheet 110 - Disclosure - United States Dollar Convenience Translations United States Dollar Convenience Translations http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsForeignCurrencyDisclosureTextBlock false R9.xml false Sheet 111 - Disclosure - Accounts Receivable Accounts Receivable http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock false R10.xml false Sheet 112 - Disclosure - Investment Securities Investment Securities http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsAvailableForSaleSecuritiesTextBlock false R11.xml false Sheet 113 - Disclosure - Inventories Inventories http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsInventoryDisclosureTextBlock false R12.xml false Sheet 114 - Disclosure - Equity Method Investments Equity Method Investments http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsEquityMethodInvestmentsTextBlock false R13.xml false Sheet 115 - Disclosure - Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock false R14.xml false Sheet 116 - Disclosure - Property, Plant and Equipment Property, Plant and Equipment http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock false R15.xml false Sheet 117 - Disclosure - Intangible Assets Intangible Assets http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsIntangibleAssetsDisclosureTextBlock false R16.xml false Sheet 118 - Disclosure - Accrued Warranty Obligations Accrued Warranty Obligations http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsProductWarrantyDisclosureTextBlock false R17.xml false Sheet 119 - Disclosure - Short-Term Borrowings Short-Term Borrowings http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsShortTermDebtTextBlock true R18.xml false Sheet 120 - Disclosure - Long-Term Debt Long-Term Debt http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsLongTermDebtTextBlock false R19.xml false Sheet 121 - Disclosure - Accrued Severance Benefits Accrued Severance Benefits http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsEmployeeSeveranceTextBlock false R20.xml false Sheet 122 - Disclosure - Income Taxes Income Taxes http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock false R21.xml false Sheet 123 - Disclosure - Stockholders' Equity Stockholders' Equity http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock false R22.xml false Sheet 124 - Disclosure - Stock Appreciation Plan Stock Appreciation Plan http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock false R23.xml false Sheet 125 - Disclosure - Earnings Per Share Earnings Per Share http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlock false R24.xml false Sheet 126 - Disclosure - Commitments and Contingencies Commitments and Contingencies http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlock false R25.xml false Sheet 127 - Disclosure - Fair Value Measurements and the Fair Value Option Fair Value Measurements and the Fair Value Option http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsFairValueMeasurementInputsDisclosureTextBlock false R26.xml false Sheet 128 - Disclosure - Related Party Transactions Related Party Transactions http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock false R27.xml false Sheet 129 - Disclosure - Geographic and Other Information Geographic and Other Information http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock false R28.xml false Sheet 130 - Disclosure - Significant Concentrations and Risks Significant Concentrations and Risks http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsConcentrationRiskDisclosureTextBlock false R29.xml false Sheet 131 - Disclosure - Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsComprehensiveIncomeNoteTextBlock false R30.xml false Sheet 132 - Disclosure - Supplemental Cash Flows Information Supplemental Cash Flows Information http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsCashFlowSupplementalDisclosuresTextBlock false R31.xml false Sheet 133 - Disclosure - Subsequent Events Subsequent Events http://www.lgdisplay.com/taxonomy/role/NotesToFinancialStatementsScheduleOfSubsequentEventsTextBlock false R32.xml false Book All Reports All Reports false 1 32 4 0 5 162 false false eol_PE640909--0920-F0003_STD_0_20071231_0_411810x410600 1 eol_PE640909--0920-F0003_STD_0_20071231_0_411810x400328 1 eol_PE640909--0920-F0003_STD_0_20081231_0_411810x401105 3 eol_PE640909--0920-F0003_STD_0_20061231_0_411810x410600 1 eol_PE640909--0920-F0003_STD_365_20091231_0 175 eol_PE640909--0920-F0003_STD_366_20081231_0_411810x410600 2 eol_PE640909--0920-F0003_STD_0_20091231_0_411810x410600 2 eol_PE640909--0920-F0003_STD_366_20081231_0_411810x400328 3 eol_PE640909--0920-F0003_STD_365_20071231_0_411810x410600 1 eol_PE640909--0920-F0003_STD_0_20061231_0_411810x400354 1 eol_PE640909--0920-F0003_STD_0_20081231_0_411810x400354 2 eol_PE640909--0920-F0003_STD_0_20061231_0 2 eol_PE640909--0920-F0003_STD_0_20091231_0_411810x400328 2 eol_PE640909--0920-F0003_STD_365_20091231_0_411810x400354 2 eol_PE640909--0920-F0003_STD_0_20061231_0_411810x400328 1 eol_PE640909--0920-F0003_STD_0_20091231_0_411810x401105 3 eol_PE640909--0920-F0003_STD_365_20071231_0_411810x400354 1 eol_PE640909--0920-F0003_STD_0_20081231_0_411810x400328 2 eol_PE640909--0920-F0003_STD_366_20081231_0 71 eol_PE640909--0920-F0003_STD_0_20071231_0_411810x401105 2 eol_PE640909--0920-F0003_STD_0_20081231_0 49 eol_PE640909--0920-F0003_STD_365_20071231_0_411810x400328 2 eol_PE640909--0920-F0003_STD_0_20091231_0 92 eol_PE640909--0920-F0003_STD_365_20071231_0 63 eol_PE640909--0920-F0003_STD_365_20091231_0_411810x400328 6 eol_PE640909--0920-F0003_STD_0_20071231_0_411810x400354 1 eol_PE640909--0920-F0003_STD_0_20081231_0_411810x410600 2 eol_PE640909--0920-F0003_STD_0_20061231_0_411810x401105 2 eol_PE640909--0920-F0003_STD_365_20091231_0_411810x410600 4 eol_PE640909--0920-F0003_STD_366_20081231_0_411810x400354 2 eol_PE640909--0920-F0003_STD_0_20091231_0_411810x400354 2 eol_PE640909--0920-F0003_STD_0_20071231_0 2 true true