Dell Inc. and Hewlett-Packard Co. are preparing to sell flat-panel televisions. The move will surely intensify competition in the market, analysts said.

Taiwan flat-screen TV suppliers including Lite-On Technology Corp. and Amtran Technology Co. said they have provided price quotations to Dell and Hewlett-Packard, the world's two biggest personal-computer vendors. Gateway Inc. already in the market of selling flat TVs.