JP3323823B2 - Liquid crystal display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the visual field angle characteristic and to improve the efficiency by disposing one common aperture with 4 pixels as a unit as the apertures of a counter electrode, disposing each pixel always opposite to the common aperture only at one point of its peripheral part and arranging the common apertures so as to orthogonally cross each other. SOLUTION: The opening 5 is arranged always between the adjacent pixels (electrodes) 1 and the 4 pixels have the one common elongated aperture. At this time, the (projection surface) of each pixel always partly faces (overlaps) the (projection surface) of the apertures when viewed from a direction where a user views a display surface but, on the other hand, the opposition of the plural apertures to the one pixel is averted. The adjacent 4 apertures are so arrayed as to intersect orthogonally with the adjacent apertures existing in their long side direction with a 4×4 pixel structure as a minimum unit. Namely, the array of repetitive patterns with the 4×4 pixel structure as a unit is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly to an improvement in display.

[0002]

2. Description of the Related Art A homeotropic liquid crystal display device in which all liquid crystal molecules are arranged perpendicular to a substrate, particularly, a method for improving display characteristics by providing an opening in a counter electrode and controlling an electric field. Is disclosed in JP-A-3-259121.
And JP-A-6-301036.

Japanese Patent Application Laid-Open No. Hei 3-259121 relates to a dot matrix type liquid crystal display device.
As shown in FIG. 1A, an elongated opening 51 is provided at the intersection of the first electrode 1 on the TFT substrate side and the second electrode 3 on the counter substrate side, that is, the electrode of the display section in the pixel. is there.

As a result, an oblique electric field is positively generated at the intersection of the first electrode and the second electrode, and the oblique electric field causes the liquid crystal molecules 7 to be uniform and uniform as shown in FIG. It is intended to be oriented in various directions.

Japanese Unexamined Patent Publication No. 6-301036 relates to an active matrix type liquid crystal display element. Although not specifically shown in the present specification, the liquid crystal display element is located at the center of the opposing electrode at a position opposing the pixel electrode, and therefore, at the pixel position. A substantially square opening is provided in the display section of the above, and an area where the electric field is weak or not applied is formed in the pixel electrode portion regardless of the presence or absence of display (ON, OFF), so that there is an area where the liquid crystal molecules are not tilted while being vertical. Let it. This improves the alignment of the liquid crystal molecules in other regions within the pixel, thereby fixing defective disclination lines based on the misalignment, and making the image rough (if the display screen is black, the black surface may appear everywhere). Has many small white spots on the screen, giving the viewer a rough screen.)
And eliminate liquid crystal molecules in various directions (4
Direction) to improve the viewing angle characteristics.

[0006]

However, in each of these methods, an opening exists on a portion corresponding to a pixel electrode, that is, a portion which is originally a display region, on the side of the counter electrode. Therefore, a disclination line always occurs at a boundary portion of a region where the liquid crystal tilts in different directions, such as a center portion and an end portion of the opening portion, and at a portion which does not tilt regardless of the presence or absence of an electric field. This state in the above-mentioned Japanese Patent Application Laid-Open No. 3-259121 is shown in FIG. This figure 10
In (C), disclination lines 9 are generated at both ends of the opening 51.

For this reason, the light transmission efficiency is remarkably reduced, such as the presence of a black portion even in white display.

In addition, since an opening is formed in an electrode in a pixel which is an original display portion, resistance of light transmission is increased, and furthermore, since a portion which does not conduct electricity, called an opening, exists in a counter electrode, connection is made. The voltage of the opposing electrode portion located far from the terminal portion is largely reduced, which may cause unevenness in luminance on the display surface.

Therefore, during white display, a disclination line is not generated in the pixel display portion to cause a decrease in efficiency, and there is no unevenness in luminance in the plane, and the liquid crystal has improved vertical, horizontal, and horizontal viewing angles. The realization of an element has been desired.

[0010]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and has been devised in the opening of the counter electrode. Specifically, the configuration is as follows.

According to the first aspect of the present invention, the pixel electrode and the counter electrode have a rectangular shape such as a rectangular shape or a square shape and are fine (here, “fine” means a liquid crystal television receiver,
As used in the display surface of word processors and the like, the human eye sees the black and white of each liquid crystal element (ON, OF, etc.).
F) means not visible, approximately 500 μm
(In the case of a large size) The X, Y directions, which are orthogonal to each other on the display surface (especially obliquely), are different from each other, especially 100 μm or less, preferably about 30 to 6 μm.
In a liquid crystal display device arranged so as to be arranged in a grid pattern on the left and right sides and the vertical direction of the display surface, the i-th direction in the X (right or upward) direction and the Y ( The j-th pixel in the up or right direction is defined as p (i,
j), the pixel p (4m, 4n) (i.e., i = 4m, j =) when viewed from the Z direction (the direction in which the user looks at the display surface) orthogonal to the X direction and the Y direction. 4n) and a pixel p (4m + 1, 4n) at least partially (including a case where it is not formed at an end between pixels and a case where the pixel slightly protrudes), and a pixel p (4m, 4n + 1) and a pixel p ( 4m + 1, 4n + 1), which are present in common in at least a part of each counter electrode portion (including a counter portion in which a counter electrode that should originally be present does not exist due to wiring, arrangement, etc.) (or in the Z direction). The projection planes overlap each other), the shape is long in the Y direction, and the width in the X direction is the pixel p (4m, 4n + 1) and the pixel p (4m + 1, 4).
The first opening of a rectangle (including a slightly different shape such as a slightly rounded corner for convenience of manufacturing or the like) larger than the distance of (n + 1) and a pixel p (4m, 4n + 2)
And at least a portion between pixel p (4m, 4n + 3) and pixel p (4m + 1, 4n + 2) and pixel p (4m + 1,
4n + 3), which is common to at least a part of each counter electrode portion, has a long shape in the X direction and a width in the Y direction between the pixels p (4m + 1, 4n + 2) and the pixel p (4m +
The second rectangular opening larger than the distance of (1, 4n + 3), the pixels p (4m + 2, 4n) and the pixel p (4m +
2,4n + 1) and the pixel p (4
m + 3, 4n) and at least a portion of each of the opposing electrode portions between the pixel p (4m + 3, 4n + 1), the shape thereof is long in the X direction and the width in the Y direction is the pixel p (4
m + 2, 4n) and a third opening of a rectangle larger than the distance between the pixel p (4m + 2, 4n + 1) and the pixel p (4
m + 2, 4n + 2) and at least a portion between pixel p (4m + 2, 4n + 3) and pixel p (4m + 3, 4n +
2) and a pixel p (4m + 3, 4n + 3), which is common to at least a part of the respective counter electrode portions, has a long shape in the Y direction and a width in the X direction of the pixel p (4m + 3,4).
(n + 2) and a rectangular fourth opening larger than the distance between the pixels p (4m + 3, 4n + 3).

According to the above configuration, the pixel electrode and the counter electrode are formed in a rectangular shape which is advantageous in terms of arrangement and manufacturing, and fine pixels are arranged in a grid in the X and Y directions orthogonal to each other on the display surface. The following operation is performed in the liquid crystal display device arranged as described above.

When the i-th pixel in the X-direction and the j-th pixel in the Y-direction are defined as p (i, j), counting from the end point (or reference point) such as the lowermost end and the leftmost pixel of the pixel group, When viewed from the Z direction orthogonal to the direction, at least a part between the pixel p (4m, 4n) (where m and n are integers) and the pixel p (4m + 1, 4n) and the pixel p (4m, 4n + 1) and the pixel At least a portion between p (4m + 1, 4n + 1) is common to at least a part of the respective counter electrode portions, the shape is long in the Y direction, and the width in the X direction is a pixel p (4m, 4n + 1) and a pixel p (4m + 1, The first opening is provided with a rectangle larger than the distance of 4n + 1) (including a case where there is some difference such as roundness of the four corners due to manufacturing reasons).

Similarly, at least a portion between the pixel p (4m, 4n + 2) and the pixel p (4m, 4n + 3) and the pixel p (4m + 1, 4n + 2) and the pixel p (4m + 1, 4n +)
3), the shape is common to at least a part of each of the counter electrode portions, and has a shape long in the X direction and a width in the Y direction between the pixels p (4m + 1, 4n + 2) and the pixels p (4m + 1, 4).
A rectangular second opening larger than the distance of (n + 3) is provided.

Therefore, there is no electrode facing the pixel (electrode) in these commonly existing portions (projections overlap) when viewed from the Z direction.

Similarly, at least a portion between the pixels p (4m + 2, 4n + 1) and the pixels p (4m + 2, 4n + 1) and the pixels p (4m + 3, 4n) and the pixels p (4m + 3, 4n +)
1) is common to at least a part of each of the counter electrode portions and has a shape extending in the X direction and a width in the Y direction of pixels p (4m + 2, 4n) and pixels p (4m + 2, 4n +).
A rectangular third opening larger than the distance 1) is provided.

Similarly, at least a portion between the pixel p (4m + 2, 4n + 2) and the pixel p (4m + 2, 4n + 3) and the pixel p (4m + 3, 4n + 2) and the pixel p (4m +
(3, 4n + 3), which is common to at least a part of each counter electrode portion, and has a shape that is longer in the Y direction.
The width in the direction is pixel p (4m + 3, 4n + 2) and pixel p (4
A rectangular fourth opening larger than the distance (m + 3, 4n + 3) is provided.

Thus, (in the case of monochrome display) 4 × 4
A total of four openings are provided on the counter electrode side in units of pixels. Each pixel faces the opening only at one end thereof. In this case, the openings are alternately arranged orthogonally when viewed from any of the X and Y directions. Moreover, the two pixels arranged side by side are directed toward the opening as a set.

Therefore, there is no disturbance in the arrangement of the liquid crystal molecules in the display area of the pixel, and there is no problem in increasing the resistance of the electrode on the counter substrate side.

As a result, an excellent liquid crystal display device is obtained.

According to the second aspect of the present invention, the liquid crystal is such that the pixel electrode and the counter electrode are square and fine pixels are arranged in a grid pattern in the X and Y directions orthogonal to each other on the substrate on the display surface. In the display device, the X direction i is counted from the end point.
If the j-th pixel in the Y-direction is defined as p (i, j), the pixel p (4m, 4n) (where m and n are Integer) and pixel p
At least a portion between (4m + 1, 4n) and pixel p
At least a part of each counter electrode portion between (4m, 4n + 1) and pixel p (4m + 1, 4n + 1) is common and has a long shape in the Y direction and a width in the X direction of pixel p (4m, 4n + 1). ) And pixel p (4m + 1, 4n +
The first opening of a rectangle larger than the distance of 1), the pixels p (4m, 4n + 2) and the pixels p (4m, 4n + 3)
And at least a portion between pixels p (4m + 1, 4n +
2) and the pixel p (4m + 1, 4n + 3), at least in part, in common to the respective counter electrode portions, the shape is long in the X direction and the width in the Y direction is the pixel p (4m + 1, 4).
n + 2) and a rectangular second opening larger than the distance between the pixel p (4m + 1, 4n + 3) and the pixel p (4m +
2, 4n + 3) and at least a portion between the pixel p (4m + 2, 4n + 4) and at least a portion between the pixel p (4m + 3, 4n + 3) and the pixel p (4m + 3, 4n + 4). The shape is long in the X direction and the width in the Y direction is a pixel p (4m + 3, 4n +
3) and a rectangular third opening larger than the distance between the pixel p (4m + 3, 4n + 4) and the pixel p (4m + 2, 4).
n + 1) and at least a portion between pixel p (4m + 3, 4n + 1) and pixel p (4m + 2, 4n + 2) and pixel p
(4m + 3, 4n + 2), which is common to at least a part of each counter electrode portion, has a shape that is long in the Y direction and a width in the X direction of pixels p (4m + 2, 4n + 2) and pixels p (4m + 3, 4n + 2). A fourth opening having a rectangular shape larger than the distance.

With the above structure, the pixel electrode and the counter electrode are square (including the presence or absence of other irregularities for the sake of manufacturing and functioning), and fine pixels are orthogonal to each other on the display surface in the X and Y directions. The following operation is performed in the liquid crystal display device which is arranged in a grid pattern.

When the i-th pixel in the X direction and the j-th pixel in the Y direction counted from the end point are defined as p (i, j),
Pixel p (4m, 4n) when viewed from the Z direction orthogonal to the
(Where m and n are integers) and pixel p (4m + 1, 4n)
At least a portion between and pixel p (4m, 4n + 1)
And at least a portion of each of the counter electrode portions between the pixel p (4m + 1, 4n + 1) and the pixel p (4m + 1, 4n + 1), the shape thereof is long in the Y direction, and the width in the X direction is the pixel p (4m, 4n +).
A rectangular first opening larger than the distance between 1) and the pixel p (4m + 1, 4n + 1) is provided.

Similarly, at least a portion between the pixel p (4m, 4n + 2) and the pixel p (4m, 4n + 3) and the pixel p (4m + 1, 4n + 2) and the pixel p (4m + 1, 4n +)
3), the shape is common to at least a part of each of the counter electrode portions, and has a shape long in the X direction and a width in the Y direction between the pixels p (4m + 1, 4n + 2) and the pixels p (4m + 1, 4).
A rectangular second opening larger than the distance of (n + 3) is provided.

Similarly, at least a portion between the pixel p (4m + 2, 4n + 3) and the pixel p (4m + 2, 4n + 4) and the pixel p (4m + 3, 4n + 3) and the pixel p (4m +
3, 4n + 4), which is common to at least a part of each counter electrode portion, and has a shape that is long in the X direction and Y
The width in the direction is pixel p (4m + 3, 4n + 3) and pixel p (4
A rectangular third opening larger than the distance (m + 3, 4n + 4) is provided.

Similarly, at least a part between the pixel p (4m + 2, 4n + 1) and the pixel p (4m + 3, 4n + 1) and the pixel p (4m + 2, 4n + 2) and the pixel p (4m +
3, 4n + 2), which is common to at least a part of each counter electrode portion, and has a shape that is longer in the Y direction
The width in the direction is pixel p (4m + 2, 4n + 2) and pixel p (4
A rectangular fourth opening larger than the distance (m + 3, 4n + 2) is provided.

As described above, the same operation and effect as those of the first aspect of the present invention can be obtained as a whole, and of course, practically, irrespective of the vertical direction of the display surface or the arrangement of the left and right ends.

According to a third aspect of the present invention, there is provided a liquid crystal display device wherein the pixel electrode and the counter electrode are square and fine pixels are arranged in a grid pattern in the X and Y directions orthogonal to each other on the display surface. , I-th in the X direction counting from the end point, Y
When the j-th pixel in the direction is defined as p (i, j), X
Pixel p (4m, 4m,
4n) (where m and n are integers) and pixel p (4m + 1,
4n) and the pixel p (4m, 4n)
+1) and a pixel p (4m + 1, 4n + 1), which are commonly present in at least a part of each counter electrode portion, have a long shape in the Y direction, and a width in the X direction that is equal to the pixel p (4m, 4n + 1).
4n + 1) and a first opening of a rectangle larger than the distance between the pixel p (4m + 1, 4n + 1) and the pixel p (4m,
4n + 2) and the pixel p (4m, 4n + 3) and the pixel p (4m + 1, 4n + 2) and the pixel p
(4m + 1, 4n + 3), which is common to at least a part of the respective counter electrode portions, has a shape extending in the X direction, and a width in the Y direction of pixels p (4m + 1, 4n + 2) and pixels p (4m + 1, 4n + 3). A rectangular second opening larger than the distance and a pixel p (4m + 2, 4n + 1)
And at least a portion between the pixel p (4m + 2, 4n + 2) and the pixel p (4m + 3, 4n + 1) and the pixel p (4m +
(3, 4n + 2), which is common to at least a part of each of the opposing electrode portions, and has a shape that is long in the X direction and Y
The width in the direction is pixel p (4m + 3, 4n + 1) and pixel p (4
m + 3, 4n + 2), a rectangular third opening larger than the distance p, and pixels p (4m + 2, 4n−1) and pixel p
At least a portion between (4m + 3, 4n-1) and at least a portion between pixel p (4m + 2, 4n) and pixel p (4m + 3, 4n) are present in common in the respective counter electrode portions, and their shapes are in the Y direction. And the width in the X direction is pixel p
(4m + 2, 4n) and a rectangular fourth opening larger than the distance between the pixels p (4m + 3, 4n).

According to the above configuration, the pixel electrode and the counter electrode are formed of X, X whose rectangular and fine pixels are orthogonal to each other on the display surface.
In the liquid crystal display device arranged in the Y direction and in a lattice,
The following operation is performed.

When the i-th pixel in the X direction and the j-th pixel in the Y direction counted from the end point are defined as p (i, j),
Pixel p (4m, 4n) when viewed from the Z direction orthogonal to the
(Where m and n are integers) and pixel p (4m + 1, 4n)
At least a portion between and pixel p (4m, 4n + 1)
And at least a portion of each of the counter electrode portions between the pixel p (4m + 1, 4n + 1) and the pixel p (4m + 1, 4n + 1), the shape thereof is long in the Y direction, and the width in the X direction is the pixel p (4m, 4n +).
A rectangular first opening larger than the distance between 1) and the pixel p (4m + 1, 4n + 1) is provided.

Similarly, at least a portion between the pixel p (4m, 4n + 2) and the pixel p (4m, 4n + 3) and the pixel p (4m + 1, 4n + 2) and the pixel p (4m + 1, 4n +
3), the shape is common to at least a part of each of the counter electrode portions, and has a shape long in the X direction and a width in the Y direction between the pixels p (4m + 1, 4n + 2) and the pixels p (4m + 1, 4).
A rectangular second opening larger than the distance of (n + 3) is provided.

Similarly, at least a portion between the pixel p (4m + 2, 4n + 1) and the pixel p (4m + 2, 4n + 2) and the pixel p (4m + 3, 4n + 1) and the pixel p (4m +
(3, 4n + 2), which is common to at least a part of each of the opposing electrode portions, and has a shape that is long in the X direction and Y
The width in the direction is pixel p (4m + 3, 4n + 1) and pixel p (4
A rectangular third opening larger than the distance (m + 3, 4n + 2) is provided.

Similarly, at least a portion between the pixel p (4m + 2, 4n-1) and the pixel p (4m + 3, 4n-1) and the pixel p (4m + 2, 4n) and the pixel p (4m + 3, 4n)
n), the shape is long in the Y direction and has a width in the X direction, which is common to at least a part of each of the counter electrode portions, and pixels p (4m + 2, 4n) and pixels p (4m + 3, 4n)
A fourth opening having a rectangular shape larger than the distance is provided.

As a result, the same operation and effect as those of the first aspect can be obtained.

According to the fourth aspect of the present invention, the fine rectangular pixel is a rectangular pixel electrode having a plane shape other than one-to-one, preferably about one to three or less.
The rectangular first opening, the second opening, the third opening, and the fourth opening present in the counter electrode portion have a long portion overlapping with the rectangular pixel electrode when viewed from the Z direction. When overlapping in the side direction, the influence on the molecular arrangement does not have to reach far, so the overlapping part width is narrower than the overlapping part in the short side direction. I have.

With the above configuration, the following operation is performed.

The rectangular fine pixel is a rectangular pixel electrode having a rectangular planar shape due to manufacturing and display surface reasons.

For this reason, the range of influence of the opening on the molecular arrangement is taken into consideration. Consequently, the rectangular first opening, the second opening, the third opening and the rectangular opening existing in the counter electrode portion are considered. In the fourth opening, when viewed from the Z direction, the width of the overlapping portion of the rectangular pixel electrode is narrower when overlapping in the long side direction of the pixel than when overlapping in the short side direction. This is an opening corresponding to the overlapping portion side length.

According to the fifth aspect of the present invention, the fine pixels having a square shape have a square planar shape (including a case where there is some difference such as a rounded edge at the end due to manufacturing, working, etc.). It is a square pixel electrode.

With the above configuration, the following operation is performed.

The fine square pixel is a square pixel electrode having a square planar shape. For this reason, the pixels are arranged in a grid pattern on the display surface.

According to the sixth aspect of the present invention, the fine rectangular pixels are composed of three primary colors (red, green, blue or cyan,
(Magenta, yellow) pixels are color display pixels arranged in a so-called mosaic shape. With the above configuration, the following operation is performed.

As a set of 96 pixels, there is no orientation for each color, and a good image can be obtained.

According to the seventh aspect of the present invention, the fine rectangular pixels, particularly the square pixels, correspond to the rectangular first opening, second opening, third opening or fourth opening. It is characterized by being composed of three rectangular small pixels for three primary colors, which are arranged orthogonally to the long side direction of the portion existing opposite to the pixel electrode.

With the above configuration, the following operation is performed.

The rectangular fine pixels are used for color display, and are therefore rectangular first opening, second opening,
It is composed of three small pixels for three primary colors, which are arranged orthogonal to the long side direction of the portion of the third opening or the fourth opening facing the pixel electrode.

In the eighth aspect of the invention, the rectangular opening has a width of the shorter side of 2 microns which is at least 4 microns larger than a distance between two pixels opposed to each other via the longer side of the opening. It is characterized by being a wrap opening.

With the above configuration, the following operation is performed.

The rectangular opening has at least 2
It faces a pixel (electrode) with a micron width. For this reason, although it depends on the distance between the substrates (electrodes) and the size of the pixels, the effect on the arrangement of molecules is large, and the formation thereof is easy, whether dry or wet.

According to the ninth aspect of the present invention, at least one of the first opening, the second opening, the third opening and the fourth opening is replaced with (in principle, all) two long openings. It is characterized in that each of two pixels or small (sub) pixels opposed to each other via one side has a small opening group which is commonly present in at least a part of the counter electrode portion therebetween.

With the above configuration, the following operation is performed.

Although it depends on the size of the display surface and the pixels, the small opening group is replaced with at least one of the first, second, third or fourth opening having a large size. Opening 2
Every two pixels or small pixels facing each other via the two longer sides are commonly present in at least a part of the counter electrode portion therebetween.

Therefore, the voltage drop of the counter electrode is reduced accordingly.

According to the tenth aspect of the present invention, the pixel electrode and the counter electrode are arranged in a so-called delta system in which square (in principle, square) and fine pixels are arranged for color display on a display surface (color). In the liquid crystal display device, counting upward from the lower edge of the display surface, the i-th pixel column arranged in a line to the right is q (i), and the odd-numbered pixel column q
(2m + 1) (where m is an integer, including 0, of course)
One of the pixels for red, green, and blue, and one of the even-numbered pixel rows q (2m + 2) for any of the pixels for red, green, and blue. A color display pixel group including three pixels is formed, and q (2m +
1) and when the j-th color display pixel group from the left end to be present on q (2m + 2) is defined as Gq (j), two pixels on q (2m + 1) and two pixels on q (2m + 2) 1
And at least a part between two adjacent pixels on q (2m + 1) of the color display pixel group composed of pixels and q (2m +
2) An upward first-stage T-shaped opening commonly present in at least a part of the opposing portion or opposing electrode portion facing one pixel above the two pixels above q (2m + 1), and q (2m +
1) At least a portion between two adjacent pixels on q (2m + 2) and 1 on q (2m + 1) of a color display pixel group consisting of one pixel on q (2m + 2) and two pixels on q (2m + 2). On the pixel, at least part of the opposing portion or opposing electrode portion facing the two pixels on q (2m + 2) is present in common, and the opening is adjacent to the left and right of the first stage T-shaped opening (vertical direction). The first downwards that will be present)
A stepped inverted T-shaped aperture, two pixels on q (2m + 3) and q (2m
+4) The color display pixel group q (2
at least a portion between two adjacent pixels on m + 3) and at least one portion on one pixel on q (2m + 4) and at least one portion facing the two pixels on q (2m + 3); And a second-stage T-shaped opening located one pixel to the left and offset from the first-stage T-shaped opening at 1 pixel by 1 pixel on q (2m + 3) and 2 pixels on q (2m + 4)
And at least a part between two adjacent pixels on q (2m + 4) of the color display pixel group composed of pixels and q (2m +
3) One pixel above, at least part of the opposing portion or opposing electrode portion facing the two pixels on q (2m + 4) is present in common, and the openings are left and right of the second stage T-shaped opening. , And a color display pixel group q (2m + 5) composed of a downward second-stage inverted T-shaped opening existing next to the pixel and two pixels on q (2m + 5) and one pixel on q (2m + 6)
At least a portion between two adjacent pixels above and q (2m
+6) one pixel above, two pixels above q (2m + 5) facing upward and common to at least a part of the opposing portion or opposing electrode portion facing the two pixels, and one pixel to the left of the second stage T-shaped opening. A third-stage T-shaped opening located at a shifted position, and q (2
At least a portion between two adjacent pixels on q (2m + 6) and one pixel on q (2m + 5) of a color display pixel group consisting of one pixel on m + 5) and two pixels on q (2m + 6) Above, at least a part of the opposing portion or the opposing electrode portion facing at least two pixels on q (2m + 6) is present in common, and an opening is present next to the left and right of the third-stage T-shaped opening. And a third-stage inverted T-shaped opening facing downward.

According to the above configuration, in a liquid crystal display device in which pixel electrodes and counter electrodes are arranged in a so-called delta system in which square and fine pixels are arranged for color display on a display surface, the pixel electrodes and the counter electrodes are counted upward from the lower edge. , The i-th pixel column arranged in a line to the right is q (i), and any one of red, green and blue pixels of an odd-numbered pixel column q (2m + 1) (where m is an integer) Even-numbered pixel column q (2m + 2)
A color display pixel group consisting of any one pixel for red, green, and blue and adjacent to each other for red, green, and blue, and a total of three pixels, and further, q (2m + 1) and q ( 2m
+2) When the j-th color display pixel group from the left end to be present above is defined as Gq (j), the following operation is performed.

Two pixels on q (2m + 1) and q (2m +
2) q (2m) of the color display pixel group composed of the above one pixel
+1) at least a portion between two adjacent pixels on top and q
One pixel on (2m + 2), 2 on q (2m + 1)
An upward first-stage T-shaped opening commonly present in at least a part of the facing portion or the facing electrode portion facing the pixel is arranged every three pixels in the left-right (horizontal) direction.

One pixel on q (2m + 1) and q (2m + 1)
+2) q (2) of the color display pixel group composed of the upper two pixels
At least a portion between two adjacent pixels on (m + 2) and at least one portion on one pixel on q (2m + 1) and at least one portion facing two pixels on q (2m + 2). There is a downward first T-shaped inverted T-shaped opening that exists and is adjacent to the left and right of the first-stage T-shaped opening, and is similarly arranged every three pixels in the left-right direction.

Two pixels on q (2m + 3) and q (2m + 3)
4) The color display pixel group q (2m
+3) at least a portion between two adjacent pixels above and q
One pixel on (2m + 4), 2 on q (2m + 3)
A second-stage T-shaped opening which is present in at least a part of the opposing portion or the counter-electrode portion facing the pixel, and which is located at a position shifted to the left by one pixel from the first-stage T-shaped opening,
They are arranged every three pixels in the horizontal direction.

One pixel on q (2m + 3) and q (2m + 3)
4) q (2m) of the color display pixel group composed of the upper two pixels
+4) at least a portion between two adjacent pixels above and q
One pixel on (2m + 3), 2 on q (2m + 4)
At least a part of the facing portion or the facing electrode portion facing the pixel is present in common, and the opening is located on the left and right of the second-stage T-shaped opening, and is a downward second-stage inverted T-shaped opening. The openings are arranged every three pixels in the left-right direction.

Two pixels on q (2m + 5) and q (2m + 5)
6) q (2m) of the color display pixel group composed of the above one pixel
+5) at least a portion between two adjacent pixels on top and q
One pixel on (2m + 6), 2 on q (2m + 5)
A third-stage T-shaped opening which is present in at least a part of the opposing portion or the opposing electrode portion facing the pixel and which is located upward and which is shifted to the left by one pixel from the second-stage T-shaped opening,
They are arranged every three pixels in the left-right direction.

One pixel on q (2m + 5) and q (2m + 5)
6) q (2m) of the color display pixel group composed of the upper two pixels
+6) at least a portion between two adjacent pixels on top and q
One pixel on (2m + 5), 2 on q (2m + 6)
At least a part of the opposing portion or the opposing electrode portion facing the pixel is present in common, and the opening is located on the left and right of the third-stage T-shaped opening, the third-stage inverted T-shaped facing downward. The openings are arranged every three pixels in the left-right direction.

In the eleventh aspect of the present invention, the first
A vertical direction forming a vertical line portion existing between adjacent pixels in the same pixel column of the same opening, instead of at least one of the T-shaped opening and the inverted T-shaped opening of the second, third and third steps; A small opening, a horizontal small opening forming a horizontal line portion existing between adjacent pixels and between pixels facing both of these pixels in the same pixel group, and an opening contact separating the vertical small opening and the horizontal small opening. And a cut portion.

With the above configuration, the following operations are performed.

Instead of at least one of the T-shaped openings of the first, second and third stages and the inverted T-shaped openings, in order to prevent a voltage drop as much as possible, adjacent pixels in the same pixel column of the openings are used. A vertical small opening forming a vertical line portion existing therebetween, a horizontal small opening forming a horizontal line portion existing between adjacent pixels and between pixels facing both of these pixels in the same pixel group, and a vertical small opening. It has an opening and closing part that separates the small opening and the lateral small opening.

In the twelfth aspect of the present invention, the first
The vertical and horizontal small apertures of the step, the second and third steps and the inverted T-shaped opening or at least a part thereof are orthogonal to the display surface on which the pixels are arranged. When viewed from the Z direction, the opening is characterized by a 2-micron wrap opening having a common portion having a width of at least 2 μm.

With the above configuration, the following operation is performed.

The first and second and third stages of the T-shaped opening and the inverted T-shaped opening or at least a part of the T-shaped opening and the small vertical opening and the small horizontal opening are two-micron wrapped openings. Therefore, when viewed from the Z direction orthogonal to the display surface on which the pixels are arranged, the pixel has a common portion having a width of at least 2 μm. Thereby, the same operation and effect as those of the seventh aspect are obtained.

[0068]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on its embodiments.

A first embodiment of the homeotropic liquid crystal display device according to the present invention will be described.

The liquid crystal device of the present invention has a T
The provision of the FT substrate 2 and the glass substrate 4 opposed thereto is not different from the conventional one.

Here, the TFT substrate 2 having the pixel electrode 1
In this method, a vertical alignment film is applied on the liquid crystal side surface by spin coating or printing, and further heat-treated at an appropriate temperature.

Similarly, the glass substrate 4 with the ITO electrode 3 is also spin-coated or printed with a vertical alignment film and heat-treated at an appropriate temperature. Here, the reason why ITO is used as the counter electrode is that not only the light transmittance is high but also it is easy to manufacture and the like, and it is common.

The TFT substrate and the glass substrate with the ITO electrode are bonded together with a predetermined gap therebetween, and a liquid crystal having a negative dielectric anisotropy is injected and sealed.

By the way, I of the glass substrate with the ITO electrode
A rectangular opening 5 is provided in the TO electrode.

The structure of the ITO opening is, as shown in FIG. 2, always disposed between adjacent pixels (electrodes) 1, and one common elongated opening is formed by four pixels. I have it. At this time, when viewed from the (Z) direction in which the user looks at the display surface orthogonal to the substrate, each pixel (projection surface) always faces a part of the opening (projection surface). However, on the other hand, a plurality of openings do not face one pixel. With the 4 × 4 pixel structure 6 as the minimum unit, all four adjacent openings are arranged so as to be orthogonal to the adjacent openings existing in the long side direction. In other words, as shown in the figure, the pattern is a repetitive pattern with a 4 × 4 pixel structure as a unit.

Here, the reason why the opening having the long axis also in the X (Y) axis direction is not disposed immediately adjacent to the opening having the long axis in the X (Y) axis direction on the same line is as follows. In this case, the openings are too adjacent to each other to form a narrow portion, and as a result, the resistance is increased.

Note that the pattern shown in this drawing is merely an example, and that the 4 × 4
There are other methods of arranging the openings of the pixel structure as will be described later.

By arranging the ITO openings as described above, in each pixel electrode 11, as shown in FIG. 3, an oblique electric field 112 is generated in only one side of the periphery (of course, the periphery). The generated liquid crystal molecules 71 are inclined with respect to the electric field in such a manner that their major axes are orthogonal to the direction of the electric field, so that the liquid crystal molecules always have a portion in which the liquid crystal molecules are aligned in one direction.

That is, each pixel has a portion on one side of the peripheral portion where the liquid crystal molecules fall or tilt toward the opening of the counter electrode of the pixel.

Arrow 8 in FIG. 2 shows the direction in which the liquid crystal molecules fall in each pixel electrode.

As is clear from the figure, the liquid crystal molecules in each pixel are aligned in parallel in the same direction in units of two pixels (particularly in the case of black and white display) and have a 4 × 4 pixel structure. In this case, there are two sets of pixels in which liquid crystal molecules are arranged in the same direction in the X and Y directions and in four directions, ie, up, down, left, and right (in the plan view, north, south, east). In other words, up, down, left,
The viewing angle characteristics are improved in four directions.

Further, if the direction in which the liquid crystal molecules fall on the display surface of the pixel is different, a disclination line is generated at the boundary. In the present invention, however, all the boundaries are actually formed by the black matrix between the pixels. Portion, which is essentially a black display area. Therefore, there is no reduction in efficiency such as transmittance.

Since the openings are arranged such that adjacent openings are orthogonal to each other, the shortest distance between the openings can be set to be the widest, and a high-precision ITO patterning technique is not required. In addition, the in-plane resistance of the ITO does not increase, and the in-plane luminance unevenness due to the increase in the resistance does not occur.

(Test Results) A reflective TFT in which the number of pixels is 640 × 480, the pixel pitch is 26 μm, the width (gap) of the overlapping portion generated between the pixel periphery and the opening is 2 μm, and Al is deposited on the electrode portion. Using a substrate, 52 × 1
A liquid crystal display device using a counter electrode in which openings of 0 μm ITO were arranged as shown in FIG. 2 was manufactured. At this time, a liquid crystal having a negative dielectric anisotropy and a birefringence of 0.08 was used, and the cell gap (electrode interval) was set to 2.0 μm. When an evaluation test was performed as a reflective projector using a reflective optical set for the projector, an efficiency of 80% and a contrast (ratio of transmittance between ON and OFF) of 1500: 1 were obtained.

When the pixel electrode portion was observed with a microscope, no disclination line could be confirmed in the display pixel portion.

(Second and Third Embodiments) Although a set of openings is provided in units of a total of 16 pixels, the shape of the pixel unit is the same as that of the first embodiment. FIGS. 4 and 5 show different arrangements of the openings.

In the embodiment shown in both figures, rectangular openings are alternately arranged orthogonally in both the X and Y directions in the first embodiment. Thus, the pixel is shifted one pixel to + or-(up and down) in the Y direction on the basis of this. For this reason, 4
The structural unit of × 4 pixels is not square, but a little (for one pixel)
The shapes 61 and 62 are shifted. (Therefore, the pixel rows at the top, bottom, left, and right ends of the display surface are not necessarily regular.) However, by arranging in this manner, the same effect as that of the first embodiment can be obtained. .

(Fourth Embodiment) In this embodiment, one pixel (electrode) of the first embodiment is provided with red (R), green (G), and blue (B) for color display. ) It consists of one rectangular small pixel (electrode) for each color.

For this reason, as shown in FIG.
× 4 × 4, a total of 48 small pixels form one set to form one set of pixel structure.

FIG. 6B shows an electrode 5 in which the vertical and horizontal openings in the first embodiment are formed for each of two small pixels whose short sides of the rectangle face each other.
FIG. 6C shows an electrode 53 in which an opening is further formed for each small pixel.

Thus, although it depends on the size of the display surface and the pixel, the opening of the counter electrode is reduced, and the voltage resistance is reduced accordingly.

Incidentally, with the development of future technology, 15 to 15
This effect will be great if it can be applied between small pixels of about 9 μm × 5 to 3 μm.

(Fifth Embodiment) In this embodiment, while the first embodiment has square pixels, as shown in FIG. This is a case of a rectangular pixel (electrode) having a ratio of short sides of 3 to 2.

In this case, in the portion where the opening and the pixel (electrode) overlap, the long side direction 54 of the pixel is 2 μm as shown in FIG. 4B, and the short side direction 55 is also shown in FIG. 3 μm.

Thus, the opening also affects the liquid crystal molecules existing in the portion distant from the portion overlapping the pixel.

(Sixth Embodiment) In the present embodiment, as shown on the left side of FIG.
This is a case where pixels for green and blue are arranged in a so-called delta.

Also in this case, by appropriately arranging the openings of the T-type 56 and the inverted T-type 57, the orientation of each color is eliminated by a total of 36 pixels. This is shown on the right side of FIG.

FIG. 14B shows a case where a T-shaped opening is formed integrally. FIG. 15C shows a case where the wiring and the counter electrode are formed and the voltage is prevented from decreasing. And a horizontal (horizontal) direction 59.

In the present embodiment as well, although some deviations should theoretically occur at the ends, there is actually no problem and a very excellent color display is obtained.

(Seventh Embodiment) In this embodiment, as shown in FIG. 9, 10 colors for red, green and blue are used for color display.
This is a case where small pixels of about μm square are arranged in a so-called mosaic.

In this case, unlike the case of black and white, a total of 96
Although one set of pixels is used, the vertical / horizontal ratio is approximately 2: 3, which is almost close to the standard of the cathode ray tube and the number of vertical / horizontal pixels (ratio). It is also possible to adjust the shape of the pixel from a square to a somewhat rectangular shape. Consequently, good color display was obtained (especially when individual pixels were small).

It is needless to say that the arrangement of the pixels of each color may be in the upper left direction instead of the upper right direction as shown in the figure.

Although the present invention has been described based on several embodiments, it goes without saying that the present invention is not limited to these embodiments. That is, for example, the following may be performed. 1) The liquid crystal element may be either a transmission type or a reflection type, and may be used in any of a direct-view type such as a monitor and a projection type. 2) ITO (Indium, Tin,
Oxide) or a reflective electrode such as Al, Ag, or a dielectric mirror. 3) The size of the opening is preferably 2 μm or more on the short side because the angle of the oblique electric field is increased and the orientation is improved, but is smaller than that in consideration of others. 4) The method of forming the rectangular opening is not specified.

[0104]

As described above, according to the present invention, since the opening is not provided in the original display portion, there is no roughness of the disc, the nation line or the screen, and the viewing angle characteristics are excellent and the efficiency is excellent. A liquid crystal display device can be provided.

[Brief description of the drawings]

FIG. 1 is a conceptual perspective view at the time of assembling a liquid crystal element according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram of a pixel electrode and an electrode opening according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a state in an opening of liquid crystal molecules of the liquid crystal element according to the first embodiment of the present invention.

FIG. 4 is a conceptual diagram of a pixel electrode and an electrode opening according to a second embodiment of the present invention.

FIG. 5 is a conceptual diagram of a pixel electrode and an electrode opening according to a third embodiment of the present invention.

FIG. 6 is a diagram showing a state of forming an opening in a fourth embodiment of the present invention.

FIG. 7 is a diagram showing a state of forming an opening in a fifth embodiment of the present invention.

FIG. 8 is a diagram showing a state of forming an opening according to a sixth embodiment of the present invention.

FIG. 9 is a diagram showing a state of forming an opening in a seventh embodiment of the present invention.

FIG. 10A is a conceptual diagram of an electrode portion of a conventional liquid crystal element. FIG. 2B is a conceptual cross-sectional view of a liquid crystal element of the related art. (C) It is a conceptual diagram of the pixel display part of the liquid crystal element of a prior art.

[Explanation of symbols]

Reference Signs List 1 pixel (electrode) 2 TFT substrate 3 counter electrode 4 glass substrate 5 counter electrode opening 51 conventional counter electrode opening 52 counter electrode opening for each opposing small pixel 53 counter electrode opening for each small pixel Opening 56 T-shaped opening of opposing electrode 57 Inverted T-shaped opening of opposing electrode 6 4 × 4 pixel structure in first embodiment 61 4 × slightly shifted 4 × in second embodiment 4 pixel structure 62 slightly shifted 4 × 4 pixel structure in the third embodiment 7 liquid crystal molecules 71 liquid crystal molecules in oblique electric field portions 8 arrows indicating orientation directions in which liquid crystal molecules tilt 9 disclination lines 11 pixels Electrode (inside) 112 Oblique electric field part in each pixel electrode

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Akio Takimoto 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-6-301036 (JP, A) JP-A-11- 242225 (JP, A) JP-A-8-136951 (JP, A) JP-A-7-72484 (JP, A) JP-A-11-352490 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G02F 1/1337 G02F 1/1343

Claims (12)

(57) [Claims] 1. A liquid crystal display device in which a pixel electrode and a counter electrode are arranged in such a manner that square and fine pixels are arranged in a grid in X and Y directions orthogonal to each other on a display surface. When the i-th pixel in the X direction and the j-th pixel in the Y direction are defined as p (i, j), the pixel p (4) is viewed from the Z direction orthogonal to the X direction and the Y direction.
m, 4n) (where m and n are integers) and pixel p (4m +
1,4n) and pixel p (4m,
4n + 1) and at least a portion between the pixels p (4m + 1, 4n + 1) and the pixel p (4m + 1, 4n + 1), which are common in the Y direction and the width in the X direction is equal to the pixel p (4m + 1, 4n + 1).
A first opening of a rectangle larger than the distance between (4m, 4n + 1) and pixel p (4m + 1, 4n + 1); and similarly, pixel p (4m, 4n + 2) and pixel p (4m, 4)
n + 3) and the pixel p (4m +
1, 4n + 2) and the pixel p (4m + 1, 4n + 3), which are common to at least a part of each of the counter electrode portions, have a long shape in the X direction, and a width in the Y direction.
m + 1, 4n + 2) and a second rectangular opening larger than the distance between pixel p (4m + 1, 4n + 3), and pixel p (4m + 2, 4n) and pixel p (4m +
2,4n + 1) and the pixel p (4
m + 3, 4n) and at least a portion of each of the opposing electrode portions between the pixel p (4m + 3, 4n + 1), the shape thereof is long in the X direction and the width in the Y direction is the pixel p (4
m + 2, 4n) and a third opening of a rectangle larger than the distance between pixel p (4m + 2, 4n + 1), and pixel p (4m + 2, 4n + 2) and pixel p (4m
+2, 4n + 3) and the pixel p
(4m + 3, 4n + 2) and pixel p (4m + 3, 4n +
3), the shape is long in the Y direction and has a width in the X direction, which is common to at least a part of each of the counter electrode portions, and has a pixel p (4m + 3, 4n + 2) and a pixel p (4m + 3,4).
a fourth opening having a rectangular shape larger than a distance of (n + 3). 2. A liquid crystal display device in which a pixel electrode and a counter electrode are arranged in such a manner that square and fine pixels are arranged in a grid pattern in X and Y directions orthogonal to each other on a display surface. When the i-th pixel in the X direction and the j-th pixel in the Y direction are defined as p (i, j), the pixel p (4) is viewed from the Z direction orthogonal to the X direction and the Y direction.
m, 4n) (where m and n are integers) and pixel p (4m +
1,4n) and pixel p (4m,
4n + 1) and at least a portion between the pixels p (4m + 1, 4n + 1) and the pixel p (4m + 1, 4n + 1), which are common in the Y direction and the width in the X direction is equal to the pixel p (4m + 1, 4n + 1).
A first opening of a rectangle larger than the distance between (4m, 4n + 1) and pixel p (4m + 1, 4n + 1); and similarly, pixel p (4m, 4n + 2) and pixel p (4m, 4)
n + 3) and the pixel p (4m +
1, 4n + 2) and the pixel p (4m + 1, 4n + 3), which are common to at least a part of each of the counter electrode portions, have a long shape in the X direction, and a width in the Y direction.
a second opening having a rectangular shape larger than the distance between m + 1, 4n + 2) and the pixel p (4m + 1, 4n + 3); similarly, the pixel p (4m + 2, 4n + 3) and the pixel p (4m +
2,4n + 4) and the pixel p (4
m + 3, 4n + 3) and a pixel p (4m + 3, 4n + 4), which are present in common in at least a part of each of the counter electrode portions, have a long shape in the X direction, and a width in the Y direction.
(4m + 3, 4n + 3) and pixel p (4m + 3, 4n +
A third opening having a rectangular shape larger than the distance of 4), a pixel p (4m + 2, 4n + 1) and a pixel p (4m
+3, 4n + 1) and the pixel p
(4m + 2, 4n + 2) and pixel p (4m + 3, 4n +
2) The shape is long in the Y direction and has a width in the X direction, which is common to at least a part of each of the counter electrode portions during the period between 2) and the pixels p (4m + 2, 4n + 2) and the pixels p (4m + 3, 4).
a fourth opening having a rectangular shape larger than a distance of (n + 2). 3. A liquid crystal display device in which a pixel electrode and a counter electrode are arranged in such a manner that rectangular and fine pixels are arranged in a grid in X and Y directions orthogonal to each other on a display surface. When the i-th pixel in the X direction and the j-th pixel in the Y direction are defined as p (i, j), the pixel p (4
m, 4n) (where m and n are integers) and pixel p (4m +
1,4n) and pixel p (4m,
4n + 1) and at least a portion between the pixels p (4m + 1, 4n + 1) and the pixel p (4m + 1, 4n + 1), which are common in the Y direction and the width in the X direction is equal to the pixel p (4m + 1, 4n + 1).
A first opening of a rectangle larger than the distance between (4m, 4n + 1) and pixel p (4m + 1, 4n + 1); and similarly, pixel p (4m, 4n + 2) and pixel p (4m, 4)
n + 3) and the pixel p (4m +
1, 4n + 2) and the pixel p (4m + 1, 4n + 3), which are common to at least a part of each of the counter electrode portions, have a long shape in the X direction, and a width in the Y direction.
m + 1, 4n + 2) and a second rectangular opening larger than the distance between pixel p (4m + 1, 4n + 3), and pixel p (4m + 2, 4n + 1) and pixel p (4m
+2, 4n + 2) and the pixel p
(4m + 3, 4n + 1) and pixel p (4m + 3, 4n +
2), the shape is common to at least a part of the respective counter electrode portions, and has a shape extending in the X direction and a width in the Y direction of pixels p (4m + 3, 4n + 1) and pixels p (4m + 3, 4).
a third opening having a rectangular shape larger than the distance of (n + 2), and a pixel p (4m + 2, 4n−1) and a pixel p (4m
+ 3,4n-1) and the pixel p
(4m + 2, 4n) and the pixel p (4m + 3, 4n) are present in common in at least a part of the respective counter electrode portions, the shape is long in the Y direction, and the width in the X direction is the pixel p (4n).
A liquid crystal display device having a rectangular fourth opening larger than the distance between the pixel (m + 2, 4n) and the pixel p (4m + 3, 4n). 4. The rectangular fine pixel is a rectangular pixel electrode having a rectangular planar shape, and includes a rectangular first opening, a second opening, a third opening, and a rectangular opening in the counter electrode portion. In the fourth opening, when viewed from the Z direction, a portion overlapping with the rectangular pixel electrode has a narrower overlapping portion in a long side direction than in a short side direction. 4. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is an opening corresponding to a partial side length. 5. The liquid crystal display device according to claim 1, wherein the fine square pixels are square pixel electrodes having a square planar shape. 6. The color display device according to claim 1, wherein the rectangular fine pixels are pixels for color display in which pixels for three primary colors are arranged in a so-called mosaic shape. The liquid crystal display device according to claim 4. 7. The rectangular fine pixel has a length of a portion of the rectangular first opening, the second opening, the third opening, or the fourth opening which is opposed to the pixel. Squares 3 for three primary colors arranged perpendicular to the side direction
The liquid crystal display device according to claim 4, wherein the liquid crystal display device includes one small pixel. 8. The rectangular opening, wherein the width of the shorter side is a 2-micron wrap opening whose width is at least 4 microns larger than the distance between two pixels opposed via the longer side of the opening. 8. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is a liquid crystal display device. 9. The method of claim 1, wherein at least one of the first opening, the second opening, the third opening, and the fourth opening is opposed to each other via two longer sides of the opening. 3. The method according to claim 1, wherein each of the two pixels or the small pixels has a small aperture group that is commonly present in at least a part of the counter electrode portion therebetween. The liquid crystal display device according to claim 4, claim 5, claim 6, claim 7, or claim 8. 10. A liquid crystal display device in which a pixel electrode and a counter electrode are arranged in a so-called delta mode in which square and fine pixels are arranged on a display surface for color display. Counting, the i-th pixel column arranged in a line in the right direction is defined as q (i), and the odd-numbered pixel column q (2m +
1) consisting of any pixel for red, green, and blue (where m is an integer) and any pixel for red, green, and blue in an even-numbered pixel column q (2m + 2) Red,
A pixel group consisting of three pixels, one each for green and blue, is used as a color display pixel group, and q (2m + 1) and q (2m +
2) When the j-th color display pixel group from the left end to be present above is defined as Gq (j), it is composed of two pixels on q (2m + 1) and one pixel on q (2m + 2). At least a portion between two adjacent pixels on q (2m + 1) and at least a portion of one pixel on q (2m + 2) facing the two pixels on q (2m + 1) of the color display pixel group. An upward first-stage T-shaped opening commonly present in the counter electrode portion, and a color display pixel group q (2m + 2) including one pixel on q (2m + 1) and two pixels on q (2m + 2) At least a portion between two adjacent pixels and one pixel on q (2m + 1), at least a portion of the counter electrode portion facing the two pixels on q (2m + 2) are present in common, and as an opening Exists next to the left and right sides of the first-stage T-shaped opening. A first-stage inverted T-shaped aperture between two adjacent pixels on q (2m + 3) of a color display pixel group consisting of two pixels on q (2m + 3) and one pixel on q (2m + 4) An upward and common first T-shaped opening that is common to at least a portion of and at least one counter electrode portion facing one pixel on q (2m + 3), two pixels on q (2m + 3). A second-stage T-shaped opening located at a position shifted to the left by one pixel, and q (2m + 4) of a color display pixel group consisting of one pixel on q (2m + 3) and two pixels on q (2m + 4) At least a portion between two adjacent pixels and one pixel on q (2m + 3), at least a portion of the counter electrode portion facing the two pixels on q (2m + 4), and an opening Downwards which will be present next to the left and right of the second stage T-shaped opening And a second-stage inverted T-shaped aperture between two adjacent pixels on q (2m + 5) of a color display pixel group consisting of two pixels on q (2m + 5) and one pixel on q (2m + 6) At least a portion and one pixel above q (2m + 6), an upwardly facing and second stage T-shaped opening which is common to at least a portion of the counter electrode portion facing the two pixels above q (2m + 5) A third-stage T-shaped opening located at a position shifted to the left of the pixel, and a color display pixel group q (2m + 6) including one pixel on q (2m + 5) and two pixels on q (2m + 6) At least a portion between two adjacent pixels and at least one pixel on q (2m + 5), at least a portion of the counter electrode portion facing the two pixels on q (2m + 6) are present in common, and Is located on the left and right of the third-stage T-shaped opening and faces downward. A liquid crystal display device having a third-stage inverted T-shaped opening. 11. The method according to claim 1, wherein at least one of the T-shaped openings and the inverted T-shaped openings of the first, second, and third stages is present between adjacent pixels in the same pixel column of the openings. A vertical small opening forming a line portion; a horizontal small opening forming a horizontal line portion existing between the pixels of the same color display pixel group as the adjacent pixels and opposed to both of the pixels; The liquid crystal display element according to claim 10, further comprising an opening and closing portion that separates the opening and the small lateral opening. 12. The vertical and horizontal small openings in the first, second, and third stages and the inverted T-shaped openings and / or at least a part of the T-shaped openings are pixels. 13. A 2 micron wrap opening having a common portion having a width of at least 2 .mu.m when viewed from a Z direction orthogonal to the display surface on which are arranged.
The liquid crystal display device as described in the above.