Abstract: An apparatus and a method for examining whether an automatic convergence adjustment function of a projection television (PJTV) set is well performed or not. The provided examination apparatus includes a camera for photographing images displayed on a screen of a PJTV set; an image grabber for capturing the images photographed by the camera; a unit for generating a control command to be applied to the PJTV set; a memory for storing the images captured by the image grabber; and a control unit for applying a convergence adjustment command to the PJTV set, capturing by using the image grabber a start image before a convergence adjustment process of the PJTV set and a result image after the convergence adjustment process, storing the images in the memory, and determining whether the convergence adjustment process is well performed by comparing and analyzing the start image and the result image stored in the memory.

Abstract: A polymeric orientating material for a liquid crystal display including a charged pair electrostatically bound to the main chain of the polymer, and a ferroelectric liquid crystal display adopting the same as an orientation. The ferroelectric liquid crystal display of the present invention has improved memory stability through fast reduction of the anti-electrical field formed when an external electrical field is applied.