JPH032831A - Liquid crystal display panel - 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 high performance, high yield liquid crystal display panel.

BACKGROUND OF THE INVENTION In recent years, liquid crystal display devices have been actively approached for large-capacity displays, particularly image displays, and are attracting attention as displays that can be realized as low-cost devices. An example of the conventional liquid crystal display device mentioned above will be described below with reference to the drawings.

FIGS. 4 and 5 are diagrams showing the structure of a matrix type liquid crystal display device, which is an example of a conventional liquid crystal display device.

After forming an electrode group 3.4 divided into strips and an alignment film 5 on the surfaces of a pair of transparent substrates 1.2 that are in contact with the liquid crystal, glass fibers or fine resin particles are scattered, spacers 6 are provided, and the electrodes 3,4 are formed. 0 or more, in which the liquid crystal composition 7 is filled in the gap formed by the spacer, and the linear polarizing plate 8.9 is bonded to the outside of both group plates. In the liquid crystal display device configured as follows, each intersection of each divided electrode group 3 and 4 forms a picture element IO, and arbitrary information can be displayed by selectively applying a voltage to these i-pole groups. can do.

Problems to be Solved by the Invention As the definition of liquid crystal display panels becomes higher, it has become extremely difficult to control the panel gap. When spacers are dispersed and controlled at a predetermined gap as in the past, spacers are also present in the display area, which reduces the aperture ratio, and the spacers themselves become bright spots, causing a decline in display quality. It had become.

In order to solve the above problem, there is a method of forming a bar of a certain height in the space between the electrodes, but the currently used method of backing an organic polymer film by photo-etching requires a large number of steps. This has caused not only a reduction in yield but also a significant deterioration in work efficiency in order to obtain high-quality liquid crystal display panels. Therefore, the present invention aims to make it possible to easily obtain a uniform, uniform, and high-quality liquid crystal display panel by controlling the panel gap to a predetermined thickness without deteriorating the aperture ratio even in a high-definition liquid crystal display panel. This is the purpose.

Means for Solving the Problems In order to achieve the above objects, the liquid crystal display panel of the present invention comprises:
In order to maintain a gap between the upper and lower substrates, one of the upper and lower electrode-attached substrates is placed on a charged object of a predetermined shape, and resin particles of a predetermined diameter are dispersed to form a spacer.

Function: The overnight crystal display panel constructed as described above allows the formation of resin particles, ie, spacers, at any desired position, and the display quality can be improved by a number of tons without reducing the aperture ratio. It is possible to maintain a constant gap between the upper and lower substrates without causing any damage, and to obtain a high-definition liquid crystal display panel with high display quality.Furthermore, the number of defects is smaller than that of the photo-etching method. , yield is improved.

EXAMPLE A liquid crystal display panel according to an example of the present invention will be described below with reference to the drawings. In FIGS. 1, 2, and 3, 21 is a charged electrode, 22 is a resin fine particle, and 23 is a charged electrode.
is a panel substrate, 24 is a picture element electrode, 25 is an alignment film, 26
27 indicates a substrate having a liquid crystal composition and a charged electrode 21. Groups of 24 picture element electrodes each divided into strips are formed on the surface of a pair of transparent panel substrates 23 in contact with the liquid crystal. An alignment film 25 is formed on each. Further, on the substrate 27, an electrode pattern made of a metal thin film formed at the same pitch as the pixel electrodes 24 of the panel substrate 23 is charged by applying a DC voltage of +1O2. On the substrate 27, one of the panel substrates 23 is connected to the pixel electrode 2.
The spacer 22 is installed so that the charged electrode patterns overlap in the space 22, and resin fine particles of a predetermined diameter are dispersed therein.
form. Next, the panel substrates 23 are bonded together with their electrode surfaces facing each other, and the gaps formed by the resin particles 22 are filled with a liquid crystal composition 26. The charged electrode 21 on the substrate 27 has a thinner pattern than the space portion of the picture element electrode 24. The panel substrate 23 has electrodes formed on opposing surfaces, and the surface of the alignment film is subjected to a predetermined alignment treatment.

In another embodiment of the present invention, T4 electrodes divided into strips are formed on the surfaces of a pair of transparent substrates in contact with the liquid crystal, and an alignment film is formed on each of the electrodes.

A metal mensch prepared in advance and configured with the same pitch as the electrodes is charged by applying a DC voltage of +IOV, and one of the electrode-equipped substrates is installed so that the metal part overlaps the space between the electrodes, Fine resin particles of a predetermined diameter are dispersed, and the zero-order substrates forming the spacer are bonded to each other with their electrode surfaces facing each other, and the gap formed by the spacer is filled with a liquid crystal composition. The metal menche has a smaller diameter than the space portion of the electrode.

The substrate has an electrode formed on its opposing surface, and the surface of the alignment film is subjected to a predetermined alignment treatment.

Effects of the Invention As explained above, in order to maintain the gap between the upper and lower substrates, one of the upper and lower electrode-attached substrates is placed on a charged object of a predetermined shape, and fine particles of a predetermined diameter are dispersed. hand,
Since the spacer can be formed in any location, the spacer can be formed in the upper and lower directions without reducing the aperture ratio or degrading the display quality due to bright spots of the spacer on the picture element electrode. Since we were able to maintain a constant gap between the substrates, we were able to not only produce high-definition liquid crystal display panels with high display quality at a high yield, but also greatly contribute to improving work efficiency, with no practical effects. It is extremely large.

[Brief explanation of drawings]

FIG. 1 is a plan view of a substrate equipped with electrodes for charging;
FIGS. 2 and 3 are block diagrams of a liquid crystal display panel according to an embodiment of the present invention, and FIGS. 4 and 5 are block diagrams of a conventional liquid crystal display panel. 21...Charged electrode, 22...Resin particles, 23...Panel substrate, 24...
...Picture element electrode, 25...Alignment film, 26...
...Liquid crystal composition, 27...Substrate.

Claims (3)

[Claims] (1) A spacer for maintaining the gap between the upper and lower substrates in a liquid crystal display panel is created by placing either the upper or lower electrode-equipped substrate on a charged object of a predetermined shape, and dispersing resin fine particles of a predetermined diameter. A liquid crystal display panel characterized by forming. (2) The liquid crystal display panel according to claim 1, wherein the charged object is formed by forming a metal thin film in a predetermined shape on a glass substrate. (3) The liquid crystal display panel according to claim (1), wherein the charged object is made of a metal mesh having a predetermined shape.