Quasi-two-dimensional chiral patterns have been successfully obtained in the growth of tetracyanoquinodimethane (TCNQ) thin films by vacuum thermal evaporation. The influences of electrostatic effects, substrate temperatures, and other growth factors were discussed based upon experimental studies. It was shown that, contrary to previous reports, charged particles were not essential for chiral pattern formation. By a combined transmission electron microscopy and atomic force microscopy study, we found that chiral pattern growth is strongly related to a special "rod-like" growth property of TCNQ thin films. A simple growth model was thus briefly proposed, without involving any trapped electrostatic charges on the growing island.