JPH0514263Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a matrix type color liquid crystal panel, and particularly relates to improvement of pixel shape.

(b) Conventional technology A color liquid crystal panel has transparent electrodes provided in a strip shape in the row (or column) direction on one glass substrate,
Transparent electrodes are provided in a strip shape in the column (or row) direction on another glass substrate, and transparent electrodes that have the same shape as pixels that are formed by crossing each other and are provided in the row direction on one of the glass substrates. A color filter layer is provided on the formed transparent electrode. A scanning signal is applied to the transparent electrodes in the row direction, and a segment signal is applied to the transparent electrodes in the column direction to perform color display. Conventionally, the shape of the pixels forming such a simple matrix color display panel is rectangular or square, and the pattern of each R, G, and B color filter layer is as shown in Figure 2, in which the same color is arranged in the column direction. In many cases, a stripe type is used, and a diagonal mosaic type, in which the same color is diagonally arranged, as shown in FIG. 3, is used.

Such a color filter layer pattern is described in the February 1986 issue of Electronic Materials.

(c) Problems to be solved by the invention However, each of the above-mentioned pattern arrangements has the following problems. First, in the stripe type shown in Figure 2, a scanning signal is sequentially applied to transparent electrodes in the row direction, and segment signals corresponding to R, G, and B pixels in the row direction are applied to transparent electrodes in the column direction to display the image. In such a pattern, the same color is arranged in the column direction, so there is no need to switch segment signals every time the scanning line signal is shifted, and the drive circuit is simple.
Since the same colors R, G, and B are arranged in a row in the column direction, there is a drawback that each adjacent color stands out in a band-like manner. In addition, in the diagonal mosaic type shown in Figure 3, the occupying ratio of R, G, and B colors is the same whether viewed vertically or horizontally, so the same color stands out as a band like a striped type. On the other hand, each time a scanning signal is applied sequentially, the position of the transparent electrode in the column direction that applies the segment signal that drives the same color is different, so a switching circuit is required to distribute the segment signal, resulting in multiple drive circuits. There were flaws.

(d) Means for solving the problem The present invention was made in view of the above points, and as shown in FIGS. 1A to 1C, rows (or columns) are arranged on one glass substrate. A first transparent electrode 2 formed in a direction, a second transparent electrode 1 formed in a column (or row) direction on another glass substrate, a first transparent electrode 2 and a second transparent electrode 1 The first transparent electrode 2 of a color liquid crystal panel is formed in a band shape, and includes color filter layers 3, 4, and 5 formed on one side of a glass substrate in the same shape as pixels created by crossing the The second transparent electrode 1 has a shape in which parallelograms having a pair of sides parallel to the first transparent electrode 2 are arranged in the column (or row) direction and are continuous at obtuse angle portions, and the first and second This problem is solved by making the pixels and the color filter layers 3, 4, 5 formed by the intersection of the transparent electrodes 2, 1 into parallelograms.

(e) Effect As described above, the second transparent electrodes 1 are arranged in parallelograms having a pair of sides parallel to the first transparent electrodes 2 in the column direction, and the obtuse angle portions 6 of the parallelograms are arranged in the column direction. By making the shape continuous in the direction, the pixels and color filter layers 3, 4, 5 created by the intersection of the first and second transparent electrodes 2, 1 are formed in the shape of a parallelogram, and the adjacent Since the acute angle portions of each of the color filter layers 3, 4, and 5 intersect in a comb-teeth shape, a color arrangement with a high color mixing effect can be obtained.

(f) Examples Examples of the present invention are shown below in Figures 1A to 1C.
This will be explained in detail based on the following. FIG. 1A is a pattern diagram of a first transparent electrode 2 formed on a glass substrate, and a plurality of first transparent electrodes 2 are formed in a strip shape in the row direction. FIG. 1B is a pattern diagram of the second transparent electrode 1 formed on another glass substrate. The second transparent electrode 1 has a parallelogram shape with a pair of sides parallel to the first transparent electrode 2.
The transparent electrodes 2 are arranged in a number equal to the number of transparent electrodes 2, and the obtuse angle portions 6 of each parallelogram are continuous. Furthermore, the second transparent electrodes 1 are arranged with slight gaps in the column direction. The pixel shape created by crossing the first and second transparent electrodes 2, 1 is a parallelogram, and FIG. 1C shows color filter layers 3, 4, 5 formed corresponding to the pixel shape.
FIG. Each color filter layer 3, 4, 5 is formed in the shape of a parallelogram, and the second
The same colors are arranged in the column direction to correspond to the transparent electrodes 1 of .

The first transparent electrode 2 of such a color liquid crystal panel
When a scanning signal is sequentially applied to the second transparent electrode 1
are formed in the column direction, so each R, G, B
Even if the scanning signal shifts, the segment signals that drive the pixels can be applied to the same second transparent electrode 1 to perform color display, and since the pixel shape is a parallelogram, it is possible to perform color display. Since the acute angle portions of each pixel intersect in a comb-teeth shape, a color arrangement with a high color mixing effect can be achieved.

According to the present invention, by making the pixel shape parallelogram, the acute angle portions of adjacent pixels intersect in a comb-like shape, making it possible to create a color arrangement with a high color mixing effect, which is different from the conventional stripe shape. Color display can be performed without the same color appearing in bands like the type. In addition, the drive circuit does not require a switching circuit,
It can be easily driven.

(g) Effects of the invention As described above, according to the invention, color display can be performed with a simple drive circuit that does not require a switching circuit, and the same color in the column direction can be displayed without being perceived as a band. be.

[Brief explanation of drawings]

1A to 1C are pattern plan views showing an embodiment of the present invention, and FIGS. 2 and 3 are pattern plan views showing a conventional example. DESCRIPTION OF SYMBOLS 1... Second transparent electrode, 2... First transparent electrode, 3, 4, 5... Color filter layer, 6... Obtuse angle part.

Claims (1)

[Scope of utility model registration request] A first transparent electrode formed in the row (or column) direction on one glass substrate, a second transparent electrode formed in the column (or row) direction on the other glass substrate, and the first transparent electrode formed in the column (or row) direction on the other glass substrate. In a color liquid crystal panel comprising a color filter layer formed on one of the glass substrates in the same shape as a pixel created by the intersection of a transparent electrode and the second transparent electrode, the first transparent electrode The second transparent electrode and the color filter layer are arranged in a column (or row) direction in which parallelograms having a pair of sides parallel to the first transparent electrode are arranged at obtuse angle portions of each other. A color liquid crystal panel characterized in that the pixel formed by the intersection of the first and second transparent electrodes and the color filter layer corresponding to the pixel have a parallelogram shape.