An optical display module includes a liquid crystal panel, a driving IC, a flexible printed circuit board, a plurality of first pads, a plurality of second pads, at least a light source and a heat conductive member. The driving IC is provided on the liquid crystal panel and electrically connected to the flexible printed circuit board. The flexible printed circuit board includes through holes open at opposite sides. The first and second pads are provided on the opposite sides of the flexible printed circuit board respectively and connected to each other through the through holes. The light source electrically connected to the first pads. The heat conductive member is attached on the second pads. Heat of the light source is conducted to the heat conductive member through the first pads and the second pads in sequence to reduce the temperature around the light source.