JPS61241782A - Liquid crystal display element - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a liquid crystal display element that can be used in a large screen display device comprising a plurality of transmissive liquid crystal display elements.

Conventional technology In recent years, three primary color cathode ray tubes (hereinafter referred to as rCRTJ) have been developed.
In addition to large-screen display devices using liquid crystal display devices (called . This. The illumination system of a conventional liquid crystal display element will be explained with reference to FIG. In Fig. 4, 1 is a glass substrate, 2 is an electrode, 3 is a color filter, and 4 is a glass substrate.
5 is a liquid crystal, 5 is an electrode, 6 is a glass plate, 7 is a polarizing plate, and 8 is a light source. Light radiated from a light source 8 such as a white fluorescent lamp is incident on the R, G, and B color filter layers 3. The light then enters the liquid crystal 4 and the amount of light is adjusted. The light that passes through it is mixed additively to form color pixels,
A color image is displayed on a glass plate 6.

Problems to be Solved by the Invention The sizes of liquid crystal display elements that can be manufactured at present range from 6 inches to 12 inches square, and it is necessary to arrange a plurality of display panels in order to construct a large screen.

However, in the above-mentioned conventional configuration, since the wiring portion is located at the end of the display element, there is a problem that it appears as a black line on a large screen.

Means for Solving the Problems In order to solve the above problems, the liquid crystal display element of the present invention includes:
The structure is such that a transparent cover body with an inclined end surface is disposed on the surface of the liquid crystal display element main body.

Effects According to the above configuration, the light incident on the inclined end face of the transparent cover body is refracted outward; therefore, the light uniformly enters the eyes, and even when multiple liquid crystal display elements are used side by side, the seams between them are It becomes unclear and unremarkable.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3.

FIG. 1 is a cross-sectional view of the main parts of an embodiment of the present invention in which liquid crystal display elements are arranged side by side, and the same components as those shown in FIG. 4 are given the same reference numerals and explained. omitted. In FIG. 4, reference numeral 9 denotes a resin cover as a transparent cover body, which is placed on the polarizing plate 7, and its end face is inclined at an acute angle. This resin cover 9 is made of, for example, acrylic resin. The glass substrate 1, the electrodes 2.5, the color filter 3, the liquid crystal 4, and the polarizing plate 7 constitute a liquid crystal display element body 10a, and the liquid crystal display element body 10 and the resin cover 9 constitute the liquid crystal display element 10a. is configured. Of course, the end faces of the resin cover 9 do not necessarily need to be inclined except for the adjacent portions of the liquid crystal display elements 10.

FIG. 2(A) is a plan view of the liquid crystal display elements arranged side by side, and FIG. 2(B) is a front view of the same, in which four liquid crystal display elements 10 are arranged side by side.

FIG. 3 is an explanatory diagram of the light transmission state of adjacent portions of the liquid crystal display element, where α is the inclination angle of the end face of the resin cover 9, and g is the thickness of the resin cover 9 and the polarizing plate 7.

The operation of the above configuration will be explained below. Light rays emitted from a light source 8 such as a white fluorescent lamp pass through R, G, and B color filters 3 and enter the liquid crystal 4.

There, the light beam is adjusted and enters the resin cover 9.

The light beam incident on the inclined end face of the resin cover 9 is refracted outward from the liquid crystal display element 10. As a result, a person viewing the display device from the entire surface can see an image as if there were no seams in the liquid crystal display element 10.

Note that the inclination angle α changes depending on the refractive index of the material used for the resin cover 9. As the refractive index decreases, the angle α also decreases. The thickness ρ also varies depending on how many picture elements are used in this joint. As the number of picture elements increases, the thickness becomes larger.

As described above, according to this embodiment, it is possible to display a large screen with inconspicuous seams.

Effects of the Invention As described above, according to the present invention, since the end faces of the transparent cover body are inclined, the seams of the liquid crystal display elements can be made indistinct, and a good display on a large screen can be realized.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts of liquid crystal display elements arranged side by side in an embodiment of the present invention, FIG. 2(A) is a plan view of the same, and FIG.
B) is a front view of the same, FIG. 3 is an explanatory diagram of the light transmission state of adjacent portions of the same liquid crystal display element, and FIG. 4 is a sectional view of the main part of the conventional liquid crystal display element in a juxtaposed state. 9... Resin cover, 10a... Liquid crystal display element body,
10...Liquid crystal display element representative Yoshihiro Morimoto Figure 1 (B), 壬 2, UNI←Y

Claims (1)

[Claims] 1. A liquid crystal display element in which a transparent cover body with an inclined end face is disposed on the surface of the liquid crystal display element body.