JPS6373291A - Liquid crystal panel for image display - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] <Industrial Application Fields> The disclosed technology is a pixel arrangement structure technology of a micro-type liquid crystal television or liquid crystal panel that transmits light through the liquid crystal panel and projects an enlarged image on a screen. Belongs to a field.

<Summary of the gist> The invention of this application relates to a small and compact micro-type liquid crystal television and the structure of the liquid crystal panel of the liquid crystal television, which transmits white light through the liquid crystal panel and projects an enlarged image on the screen. This invention relates to an image display liquid crystal panel in which a set number of liquid crystal cells of a predetermined shape and a predetermined size are regularly arranged adjacent to each other. In color LCD panels, red, green,
.

Each color liquid crystal cell of blue (hereinafter abbreviated as R, G, and B) is adjacent to each other via one side of each triangle, and although the overall number of R, G, and B cells is substantially the same, This invention relates to an image display liquid crystal panel in which two color liquid crystal cells of the same color are arranged in a state where they are not adjacent to each other through their sides.

<Prior art> As is well known, image information has been used for a long time as an excellent information transmission medium due to its density and high definition compared to text information and audio information. Images such as movies and slides have become popular in place of images, and with the recent rapid development of electronic media, the proportion of television images in information transmission is becoming threateningly large.

However, as has been the subject of various problems, although direct-view televisions such as CRT televisions have the function of transmitting information to one person or a limited number of viewers, they cannot transmit information to an unspecified number of viewers. Its ability to transmit information is inferior, and therefore technology has been developed in which video projectors and the like magnify the image and project it onto a screen. Since the image is enlarged and projected onto a screen, the image is dark and tends to be insufficient in its ability to simultaneously transmit a large amount of information to many people.

In contrast, the so-called liquid crystal television has recently been put into practical use by combining material technology and electronic technology, and its function as a personal television has become portable due to its compact size, and is rapidly spreading. Not only that, but the built-in liquid crystal panel itself is light-transmissive, allowing white light to pass through the liquid crystal panel itself and project it on the screen in an enlarged manner, transmitting information to an unspecified number of viewers at the same time. It has been attracting attention as a method that can do this, and it is becoming technologically possible to project clear and bright images.

<Problems to be solved by the invention> However, in the case of LCD televisions that have been developed so far, or when light is transmitted through an original image formed on a liquid crystal panel and projected onto a screen to form an image. However, since the unit liquid crystal cells in the liquid crystal panel are formed in a rectangular shape such as a square, various problems have been encountered as is usual with cutting-edge technology that is still under development.

In other words, since the liquid crystal cell is rectangular, its size is controlled by the length of its sides, and therefore there is a limit to the number of liquid crystal cells that can be arranged in a liquid crystal panel, and this is true in the case of direct-view type devices such as liquid crystal televisions. As mentioned above, in order to meet the increasing needs, projection of an enlarged image onto a screen through light transmission has often resulted in the drawback that the texture on the screen is rough and the viewing experience is tiring to the eyes.

In particular, each liquid crystal cell in a color liquid crystal panel has R
Since three liquid crystal cells, SG and B, are grouped together to create a color image, there are particular drawbacks such as coarse pixels and flickering.

Since the arrangement of R, G, and B of each liquid crystal cell in a color liquid crystal panel as shown in Fig. 4 is a kind of regular arrangement, the arrangement of minute electrode lines (not shown) for each liquid crystal cell is difficult. This is extremely difficult and has the disadvantage of increasing costs.Also, in order to arrange regularly as shown in Figure 4, the arrangement of R and GSB is linear in the lower right diagonal direction. In particular, there was a problem in that the rectangular bright line pattern, in which B appeared dark, was an obstacle.

Furthermore, when displaying a thin line-shaped image, since the pixels are coarse, an image diagonal to the pixel column direction becomes a connection of curved lines, resulting in poor definition and lack of suitability.

These things result in a kind of regular or irregular striped pattern when an image is enlarged and projected onto a screen, which leads to the inconvenience that the colored striped pattern deteriorates sharpness and contrast. Therefore, there is a strong technical need to address this problem.

<Object of the Invention> The object of the invention of this application is to provide an enlarged image on a screen through light transmission through liquid crystal televisions that have come into practical use based on the above-mentioned prior art and liquid crystal panels that have reached a considerable technological level. The problem of projection is a technical issue to be solved, and the shape of the liquid crystal cells in the liquid crystal panel, which is the biggest bottleneck in these problems, and the arrangement thereof have been changed from a rectangular type to the basic minimum unit of the figure itself. By switching the idea to a certain triangle, all of the above problems can be fundamentally solved, the pixels can be made finer, the electrode wires can be easily connected, and costs can be reduced.
It is an object of the present invention to provide an excellent liquid crystal panel for displaying images, which is useful for the field of image technology application in the information industry, by making it possible to visually recognize bright images with fine detail and good contrast even when an enlarged image is projected onto a screen. .

<Means/effects for solving the problem> In order to solve the above-mentioned problem, the structure of the invention of this application, which is based on the scope of the above-mentioned patent claims, is basically to solve the above-mentioned problem. Each liquid crystal cell to be arranged is arranged adjacent to each other in the form of a triangle, which is the basic unit of the figure, and in the case of a regular arrangement, it is possible to connect the electrode wires extremely easily, and by this arrangement, the liquid crystal cells of the liquid crystal panel The number of liquid crystal cells in the scanning line direction can be significantly larger than that of conventional rectangular liquid crystal cells, and as a result, the display of linear images can be virtually straightened in all directions, allowing accurate Able to transmit information,
In addition, the pixels of the image on the color liquid crystal panel are fine due to the fine liquid crystal cell arrangement, and even when enlarged and projected on the screen, a bright image with good contrast can be seen.
By reducing the regularity of the arrangement, each R, G, and B intersect with each other, creating a mixed state of colors, which eliminates color mixing and unevenness caused by a specific color pattern arrangement, and maintains a stable image. It has taken technical measures to make it possible to take various design aspects.

<Example> Next, an example of the invention of this application will be described below based on FIGS. 1 to 3. Incidentally, the same parts as those in FIG. 4 will be explained using the same reference numerals.

In the embodiment shown in FIG. 1, 1' is a liquid crystal panel that constitutes the gist of the invention of this application, and this embodiment is an embodiment of a color liquid crystal panel, with each color liquid crystal cell R21, G2
1' and B21' are triangular, and the triangular shape is similar to the liquid crystal cells R2 and G of the conventional type liquid crystal panel shown in FIG.
In order to correspond to the rectangular size of 2' and B2', the horizontal bases are the same length, and the heights in the figure are arranged so that they are equal to the sides of each liquid crystal cell in Figure 4. ,
Therefore, the number of liquid crystal cells for the same length of the scanning line is 1.5 times greater than in the case of conventional square cells.

In this embodiment, the arrangement of each liquid crystal cell is R, G, B, regardless of whether it is triangular downward or upward in the scanning line direction.
R, GSB, etc. are arranged in a regular arrangement, and the entire liquid crystal panel 1' is substantially composed of the R, G, and GSB of the liquid crystal cell.
B is the same number, and specifically, R, G, and B are mixed.

In addition, in this embodiment, R, G, and B are arranged adjacent to each other in the lower left inclined direction, and R, G, and B are arranged adjacent to each other in the lower right inclined direction as shown in FIG. They look similar, but as mentioned above, the mutual spacing is extremely short, so the pixels are fine overall, and therefore are not visible as bright lines on the viewing angle.
Even in the image projected on the screen through the transmission of light from the white light source to ', color patterns etc. are not projected as in the conventional type.

Furthermore, since the image enlarged and projected onto the screen is fine-grained, the contrast is good, and a bright and clear image without flickering can be visually recognized.

Thus, the embodiment shown in FIG.
1' and 21', and as shown in the figure, each triangular liquid crystal cell R21, G2
1', 821'' are arranged in a triangular shape,
In this embodiment, the electrode wire 3 for R21, the electrode wire 3' for G21', and the electrode wire 31 for 821' can be connected in parallel and separated from each other due to the same arrangement of liquid crystal cells in the lower left inclined direction. Therefore, in the conventional arrangement of liquid crystal cells 2,',2' as shown in Fig. 4, although each liquid crystal cell itself is regularly arranged, the connection of electrode wires is extremely difficult. It can be seen that it has been made extremely simple compared to the complicated and difficult to connect.

The rules and intervals of the connection arrangement of the same liquid crystal cells in the vertical and horizontal directions and in the lower right direction become a pattern in which they are connected in a much more linear arrangement than those of the liquid crystal cells in FIG.
Therefore, not only a direct viewing type but also a linear image enlarged and projected onto a screen can be displayed in a substantially straight line.

<Embodiment - Effect> In the above-described configuration, even in a direct view type liquid crystal television or in the form of an enlarged image projected onto a screen, each liquid crystal cell, that is, a pixel of the liquid crystal panel 1' has a small area.
In addition, because there are a large number of them and they are arranged adjacent to each other, the images are extremely detailed, and therefore their clarity is dramatically high.Especially in images that are enlarged and projected onto a screen, the contrast is good and the colors are very fine. A stable and satisfactory image can be visually recognized without any bleeding or striped patterns of different colors on the image.

Not only entertainment images, but also linear images for displaying data at symposiums, study groups, research institutes, factories, etc. can be displayed extremely accurately and without bending.

Next, in the embodiment shown in FIG. 3, each liquid crystal cell of the liquid crystal panel 11 has the same size as the above-mentioned embodiment, but although the arrangement in the direction of the chain line is adjacent, the arrangement of the liquid crystal cell group is as shown in the bold line. R21, G21', B2 as shown in the frame
1' is an arrangement in which six clockwise rotations are grouped into one group, and the clockwise phase is shifted by one, and furthermore,
Pixels of each color can be connected by diagonal electrode lines, so that each adjacent liquid crystal cell in the scanning line direction, vertical direction, and diagonal direction can display substantially the same color linearly. is being used.

The image display in this operation is substantially the same as that of the above-mentioned embodiment, and the above-mentioned embodiment is simply one in which the regularity of the regular arrangement of each R, G, and B is reduced.

Therefore, in R21, G21', and B21' of each liquid crystal cell, although the liquid crystal cells of three colors are arranged through each side, the same colors are never adjacent to each other through one side. The pixels are arranged in such a way that they are arranged to ensure fine pixel detail, improving the overall color definition.

It should be noted that the embodiments of the invention of this application are of course not limited to the above-mentioned embodiments. For example, it is possible to use not only a color liquid crystal panel but also a monochrome liquid crystal panel to increase the fineness of the pixels even more threateningly. Various aspects can be adopted, such as making it possible to do this.

In addition, it goes without saying that the shape of each liquid crystal cell can be made into an equilateral triangle or an equilateral triangle by changing the design.

Of course, the present invention can be applied to either a direct-view type liquid crystal television or an enlarged projection type projection television on a screen.

<Effects of the Invention> As described above, according to the invention of this application, a bright image with fine pixels and fine contrast can be obtained even in a direct-view liquid crystal television or a projection television that enlarges the image onto the screen. The excellent effect that can be achieved is Qin.

In a color liquid crystal panel, by arranging the liquid crystal cells diagonally, it is possible to make a linear image into a straight line, and what is more, it is possible to display an unnatural linear image that is not curved in any way. Qin has the excellent effect of eliminating the need for

Furthermore, in the color arrangement of the liquid crystal cells, other colors are deeply interwoven with each other, so there is no glare or striped color bleeding, which is typical of conventional colors, and the colors are closer to natural colors. The excellent effect that color images can be visually recognized is obtained.

Further, since the liquid crystal cells for each color are each triangular, an excellent effect of elasticity is achieved in that a degree of freedom in designing mutually regular or irregular arrangement can be obtained.

[Brief explanation of the drawing]

1 to 3 are detailed explanatory diagrams of the invention of this application, FIG. 1 is a schematic diagram of a liquid crystal panel, FIG. 2 is a schematic diagram of connection of electrode wires to the liquid crystal panel, and FIG. 3 is another embodiment. FIG. 4 is a schematic diagram of the liquid crystal panel shown in FIG. ■ 1°---Sawa Traha"-'Ft
21, 21', 21''--'''3j ''''Figure 3Figure 4

Claims (2)

[Claims] (1) A liquid crystal panel for image display in which a set number of liquid crystal cells of a predetermined shape are arranged adjacent to each other, characterized in that the liquid crystal cells are formed in a triangular shape. (2) In a liquid crystal panel for image display in which a set number of liquid crystal cells of a predetermined shape are arranged adjacent to each other, the liquid crystal cells are formed in a triangular shape, and the red, green, and blue color liquid crystal cells mutually interact with each other. 1. A liquid crystal panel for image display, characterized in that two color liquid crystal cells of the same color are arranged adjacent to each other with a cell interposed therebetween, but are not adjacent to each other with a side interposed therebetween.