An align key device for a TOC/COT-type liquid crystal display (LCD) device having first and second substrates facing each other with a predetermined space therebetween, and a liquid crystal material layer disposed between the first and second substrates, includes a first align key formed on a non-active area of the first substrate, and a second align key formed on the second substrate facing and aligning with the first align key, the second align key being formed of silver paste.