We demonstrate polymer light-emitting diodes with polarized white emission for liquid crystal display backlights application. Polarized white emission was realized by spin-coating a mixed solution of blue emissive polymer and orange emissive polymer onto an alignment layer. Our devices turned on at 3.5 V and reached a brightness of 1830 cd/m2 at 10.0 V with an efficiency of 0.4 cd/A. The integrated polarization ratio was estimated to be 2.4 with the CIE coordinates of (0.33, 0.34).