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Liquid crystal displayLiquid crystal display description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060017874, Liquid crystal display. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO PRIOR APPLICATION [0001] This application is a Continuation Application of a co-pending U.S. patent application Ser. No. 10/398,480 filed on May. 22, 2003 and issued as U.S. Pat. No. ______ , which claims priority to and the benefit of Korean Patent Application No. 200147488 filed on Aug. 7, 2001, which are all hereby incorporated by reference for all purposes as if fully set forth herein. BACKGROUND OF THE INVENTION [0002] (a) Field of the Invention [0003] The present invention relates to a liquid crystal display, and in particular to a coplanar electrode ("CE") type liquid crystal display and a manufacturing method thereof. [0004] (b) Description of the Related Art [0005] A coplanar electrode ("CE") type liquid crystal display ("LCD") includes a plurality of pixel electrodes and a plurality of common electrodes provided on one panel. The CE type LCD drives liquid crystal molecules using horizontal electric field nearly parallel to the panel between the pixel electrode and the common electrodes, thereby realizing wide viewing angle. [0006] In the CE type LCD, a plurality of pixel areas defined by intersections of a plurality of gate lines and a plurality of data lines are formed in a matrix form on a thin film transistor ("TFT") array panel. Each of pixel areas includes a switching element electrically connected to one of the gate lines and one of the data lines, a pixel electrode electrically connected to the switching element and a common electrode opposite each other and extending nearly parallel to the pixel electrode to form horizontal electric field. [0007] On a color filter panel opposite to the TFT array panel, a plurality of color filters of red color R, green color G or blue color B are provided in pixel areas, and a black matrix for blocking light leakage between the pixel areas is provided and an overcoat is formed thereon. [0008] In such an LCD, deterioration of image quality due to vertical bouncing becomes a serious problem. The vertical bouncing means that the electric field applied to a liquid crystal layer for driving the LCD is dynamically distorted around 60 Hz, which is driving frequency of the LCD, due to a certain reason, and the liquid crystal molecules are moves under the influence of the distorted electric field. This vertical bouncing appears as flicker of screen to deteriorate image quality. SUMMARY OF THE INVENTION [0009] An object of the present invention is to prevent poor images of an LCD. [0010] To accomplish the object, the relation of .epsilon. (permittivity).rho. (resistivity) between a liquid crystal layer, an aligning layer or an overcoat for preventing poor images is established so that the bouncing dose not appear. [0011] In detail, an LCD according to an embodiment of the present invention includes a first panel including a plurality of devices thereon and an aligning layer formed on the entire surface thereof, a second panel opposite to the first panel and including an overcoat and an aligning layer sequentially formed on the entire surface thereof, and a liquid crystal layer interposed between the first panel and the second panel. It is preferable that the aligning layer, the liquid crystal layer and the overcoat satisfy the relation .rho. lc + al .rho. oc > 10 2 . [0012] Preferably, the first panel further includes a pixel electrode and a common electrode opposite to the pixel electrode. [0013] An LCD according to another embodiment of the present invention includes a first panel including a plurality of devices thereon and an aligning layer formed on the entire surface thereof, a second panel opposite to the first panel and including an overcoat and an aligning layer sequentially formed on the entire surface thereof, and a liquid crystal layer interposed between the first panel and the second panel. It is preferable that the liquid crystal and the overcoat satisfy the relation RC lc RC oc > 10 3 . [0014] Preferably, the first panel further includes a pixel electrode and a common electrode. BRIEF DESCRIPTION OF THE DRAWINGS [0015] FIG. 1 illustrates an effective capacitive dielectric region in a normal LCD. [0016] FIG. 2 illustrate effective capacitive dielectric region in an LCD where a vertical bouncing appears. [0017] FIG. 3 schematically illustrates a system for measuring electrical characteristics of an overcoat. [0018] FIG. 4 is a graph illustrating the resistances of TMAH-treated overcoats as function of the treatment times. [0019] FIG. 5 is a graph illustrating the resistances of pure-water-treated overcoat as function of treatment times. [0020] FIG. 6 is a graph illustrating the charged voltage as function of time for respective TMAH treatment times of overcoats which did not experience UV treatment. Continue reading about Liquid crystal display... Full patent description for Liquid crystal display Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Liquid crystal display patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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