Dell and Hewlett-Packard are preparing to sell flat-panel televisions in a move that will intensify price competition for Sharp Corp., Samsung Electronics Co. and other Asian makers, suppliers and analysts said.

Taiwan flat-screen television suppliers including Lite-On Technology Corp. and Amtran Technology Co. said they have provided price quotations to Dell and Hewlett-Packard. Gateway is already selling flat TVs with screens measuring up to 50 inches diagonally.

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Dell plans to offer its first flat-screen TVs with 26-inch and 30-inch screens next year, said Scottie Chiu, special assistant to the chairman of Amtran, which supplies flat-panel TVs to Sharp and Gateway.