Liquid crystal display

Abstract

The invention provides a liquid crystal display device (LCD), which is an active matrix addressing LCD, prepared by instillation and substrate assembly method, capable of preventing generation of falling trace and having excellent residual image characteristics. The dielectric constant is regulated by adding acid compounds (such as amphyl 412) into the liquid crystal compound so as to improve the residual image characteristic of pattern. The compound (such as alkoxyl compound 413) capable of forming hydrogen bond with acid compound is added to the liquid crystal compound in order to prevent hydrogen bond from being generated by acid compound and water 409 when the LG compound falls on the substrate, and thereby avoiding the generation of falling trace. In a successive mode, the content of phenolic compound is 0.00010N above; and the content of the alkoxyl compound is below 0.265 mol/l and 10 equivalent weight above with respect to the phenolic compound. In an interlaced mode, the content of the phenolic compound is 0.00100N above; and the content of the alkoxyl compound is 1.324 mol/l and 150 equivalent weight above with respect to the phenolic compound.

Description

[0001] This application is based on and claims priority from Japanese Patent Application No. 2007-076696 filed on March 23, 2007, the entire contents of which are incorporated herein by reference. technical field [0002] The present invention relates to an active matrix addressable liquid crystal display device (LCD) using a lateral electric field drive system by a liquid crystal (LC) dropping method of drop filling and in a wetted The atmosphere, as prepared by a substrate assembly method in which an LC composition is dropped onto a substrate in a clean room, has excellent residual image characteristics and does not form drop marks. Background technique [0003] Active matrix addressing LCDs configured with such active elements typified by thin film transistors (hereinafter referred to as TFTs) are widely used as display terminals because they have higher image quality than CRTs and a small and lightweight body. Active-matrix addressable LCDs are used in smaller-sized disp...

AI Technical Summary

Problems solved by technology

However, the above-mentioned two known examples do not disclose techniques for solving the residual image or information on the liquid crystal composition closely related to the residual image, and thus do not show a trade-off between the dripping marks and the lowered resistance of the liquid crystal composition. Causal relationship

[0022] The second problem is that it is difficult to suppress residual images in an LCD having an image signal of an interlaced mode input from a signal source into a signal conversion circuit

[0025] A third problem is the possibility of visible speckling

In other words, the liquid crystal composition disclosed in D2 cannot eliminate drip marks, prevent visible spots or suppress residual images

The above facts also mean that the techniques disclosed in D4 and D5 for addressing drip marks cannot prevent drip marks from appearing in LCDs filled with such liquid crystal compositions that suppress residual images

Images