JPH02181726A - Divided disposition method for picture element of color display element - Google Patents

Abstract

PURPOSE:To decrease the dot defects of the display element so that the presence of the color picture elements themselves are made inconspicuous and the visual display quality is improved by adopting the disposition in which the divided picture elements of the adjacent color picture elements are nested with each other. CONSTITUTION:The color picture elements 1 of three primary colors are disposed as R1, R2..., G1, G2..., B1, B2... which are further divided as 3 pieces of the divided picture elements 2 to R11, R12, R13..., G11, G12, G13..., B11, B12, B13.... These picture elements are disposed in a triangular or inverted triangular shape and order of RGB is repeated in a horizontal direction. The picture elements are disposed to the form in which the divided picture elements 2 of the adjacent color picture elements 2 are nested with each other by inverting the upper and lower postures of the triangular shape at every one color picture element. The display with the remaining picture elements is, therefore, possible even if one of the divided picture elements 2 is defective. The size of defects is a fraction of the number of divisions and the defect is inconspicuous. Visual color mixing and mingling are liable to arise.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention 1 (Industrial Field of Application) This invention relates to a pixel division arrangement method for color display elements in flat color display devices such as liquid crystal displays and electroluminescence devices.

(Prior Art) In a flat color display device, a known method for color display is to arrange the three primary colors red (R), green (G), and blue (B) in a delta arrangement as shown in Figure 12. For example, in a liquid crystal display, R, G, and B color filters are arranged as shown in the figure, and the pixel electrodes of the product correspond to these color filters, and the pixel electrodes correspond to each of these to display the colors. A color pixel 1 having a TFT (thin film transistor) and an electrode for applying a voltage to the liquid crystal layer are provided, and by applying a required voltage to each TFT, various colors and brightness levels can be changed. can be displayed.

In such a color display device, defects occur in the pixel electrodes constituting the color pixels 1 and the corresponding TPTs due to various factors in the manufacturing process, and depending on the form of these defects in image display, these defects are called point defects or line defects. This causes image defects and reduces image quality.

These image defects are more likely to occur as the display screen becomes larger and as the number of color pixels increases, and this has become a major problem when display screens have become larger in recent years.

As means for solving this problem, there are a method of adding redundancy in the manufacturing process and a method of adding redundancy to the color pixels 1. As an example of the latter method, one color pixel 1 is divided into several divided pixels 2 as shown in FIGS. 13 and 14, and each divided pixel 2 is given an independent T P.
Even if a defect occurs in one of the divided pixels 2 by providing T and electrodes, the image defect can be made less noticeable by the other normal divided pixels 2. Figure 13 shows an example of dividing into two, and even if a defect occurs in one divided pixel, the point defect will be halved, and if it is divided into four as shown in Figure 111, the size of the point defect will be reduced to -4. .

(Problem to be Solved by the Invention) However, in the conventional pixel division arrangement method shown in FIGS. 13 and 14, although one divided pixel 2 is small, the divided pixels 2 are close to each other and are integrated. Because it is arranged in a simple straight line, the structure of color pixel 1 is easy to see, but this may obstruct the visual sense. I couldn't make it work.

This invention was made to solve the problems of the conventional pixel division arrangement method, and it not only reduces point defects in display elements, but also improves the visual display image quality by making the color pixels themselves less noticeable. The object of the present invention is to provide a method for dividing and arranging pixels of a color display element in order to improve the image quality.

[Structure of the Invention] (Means for Solving the Problems) This invention provides a pixel division arrangement method for a color display element in which a color pixel is composed of a plurality of divided pixels, in which divided pixels of adjacent color pixels are arranged in an intertwined manner. It is characterized by being

Another feature is that the shapes of the plurality of divided pixels constituting a color pixel are such that the divided pixels of adjacent color pixels intertwine with each other.

Further, divided pixels of adjacent color pixels may be arranged in a complicated manner with one or more divided pixels.

It is also possible to use an arrangement method in which the divided pixels constituting the color pixels are arranged diagonally in units of divided pixels.

It is also possible to use an arrangement method in which the arrangement of divided pixels constituting a color pixel with respect to the center of the color pixel is reversed for each adjacent color pixel in the horizontal or vertical direction.

Further, the number of divided pixels constituting a color pixel is 3g, and an arrangement method in which the arrangement is triangular or inverted triangular is also available.

Further, the number of divided pixels constituting a color pixel is four, and an arrangement method in which the divided pixels are arranged in a cross shape can also be used.

Furthermore, an arrangement method may be adopted in which each divided pixel forming a color pixel has a triangular shape, and the color pixel formed by these pixels has a rhombic shape.

Furthermore, each divided pixel forming a color pixel has a trapezoidal shape, and the color pixel formed by these pixels can also be arranged in a hexagonal shape.

(Function) As described above, the color pixel is divided into multiple pieces, and the divided pixels of adjacent color pixels are arranged in such a way that the divided pixels of adjacent color pixels are intertwined with each other, or the shape of the divided pixel is such that the divided pixels of adjacent color pixels are intertwined with each other. By using the shape pixel division arrangement method, even if one of the divided pixels becomes defective, the remaining normal divided pixels will reduce the size of the point defect by the number of divisions, making the image defect less conspicuous. The divided arrangement facilitates visual color mixing and fusion between color pixels, and makes pixel tree branches less noticeable.

(Example) An example of the present invention will be described below with reference to the drawings. In explaining an embodiment of the pixel division arrangement method for a color display element according to the present invention, a plurality of color pixels 1 of each of the three primary colors, red R5, green G, and blue B, constituting a color image are R1.
, R2, R3..., G1, G2, G3... B1,
B2, B3... are further divided into divided pixels 2, such as color pixels 1, R1, Gl, Bl.
The divided pixels 2 are R11, R12, R13, and R1, respectively.
4..., G11, G12, G13, G14..., B
11, B12, B13, B14, and so on.

FIG. 1 is a pixel layout diagram for explaining the first embodiment,
In this embodiment, a color pixel 1 of the three primary colors is divided into rectangular divided pixels 2 between parts, and these three divided pixels 2 are arranged in a triangle or an inverted triangle to form one color pixel 1, and horizontally The directional arrangement is arranged so that the darkness of R, G, and B is repeated, and the vertical orientation of the triangle is reversed for each color pixel so that the color pixels 1 that touch each other form a triangle and an inverted triangle. The vertical arrangement of color pixels is such that R, G, and B are in a delta arrangement, and each divided pixel 2 is arranged in a diagonal arrangement so that each divided pixel 2 is not lined up in the vertical direction.

Since such a divided array of color pixels 1 is configured, even if a defect occurs in one divided pixel 2, the size of the point defect in that color pixel will be only a fraction of the size, and the image point defect will not be noticeable. The divided pixels 2 of the horizontally adjacent color pixels 1 are intertwined with each other, and each divided pixel is arranged diagonally, and each of the three primary colors is arranged in a delta arrangement. Sideways between pixels 1 and divided pixels 2 become less noticeable, and color mixing between color pixels 1 becomes more likely to occur, so that visual image quality can be improved.

FIG. 2 is a pixel layout diagram for explaining the second embodiment,
The difference from the first embodiment is that the divided pixels 2 are hexagonal.

By adopting such a divisional arrangement, the triangular acute angle portions of the divided pixels 2 are intertwined with each other in the vertical direction, making the structure of the divided pixels 2 inconspicuous and making color mixing more likely to occur.

Figure 3 is a pixel arrangement for explaining the third embodiment! In the figure,
Color pixel 1 is divided into four rectangular divided pixels 2, these divided pixels 2 are arranged in a cross shape to form color pixel 1, and color pixel 1 is arranged horizontally in the order of RlG and B. At the same time, in the vertical direction, the upper and lower parts of the cross shapes of adjacent color pixels 1 are arranged in a vertical relationship.

It is the same as the first embodiment that the divided pixels are arranged in a diagonal arrangement in units of two, and the color pixels 1 are arranged in a delta arrangement in units of three primary colors.

By adopting such a division arrangement, one divided pixel 2
Even if a defect occurs in the color pixel, the size of the point defect in that color pixel is only a quarter of the size, making the image point defect less noticeable, and in addition, the size of the point defect in the color pixel 2 adjacent to each other in the horizontal and vertical directions is
The arrangement is complicated, especially in the vertical direction, so that color mixing is likely to occur.

FIG. 4 is a pixel layout diagram for explaining the fourth embodiment,
The difference from the third embodiment is that the divided pixels 2 are hexagonal.

By adopting such a divided arrangement, the structure of the color pixel 1 and the divided pixel 2 can be made more inconspicuous than in the third embodiment.

FIG. 5 is a pixel layout diagram for explaining the fifth embodiment,
Each color pixel 1 is divided into two divided pixels 2, and the divided pixels 2 are arranged diagonally with one divided pixel shifted horizontally and vertically, and the color pixel 1 adjacent to this color pixel 1 The divided pixels 2 are arranged in a complicated arrangement in the horizontal direction, and the color pixels 1 are arranged in a delta arrangement in units of three primary colors, and the arrangement direction of the divided pixels 2 is reversed every horizontal line. By adopting such an arrangement, the structure of the color pixel 1 and the divided pixel 2 becomes inconspicuous, and color mixing becomes more likely to occur.

FIG. 6 is a pixel layout diagram for explaining the sixth embodiment,
Each color pixel 1 is divided into four divided pixels 2, and similarly to the fifth embodiment, the four divided pixels 2 are arranged diagonally with one divided pixel offset in the horizontal and vertical directions. be.

In this embodiment, since the color pixel 1 is divided into four divided pixels 2, the number of point defects is reduced to four.

FIG. 7 is a pixel layout diagram for explaining the seventh embodiment,
Each color pixel 1 is divided into four divided pixels 2, and the four divided pixels 2 are arranged in an upwardly convex arc shape.
Each divided pixel 2 has a complicated divided arrangement.

FIG. 8 is a pixel arrangement diagram for explaining the seventh embodiment, which is a further modification of the seventh embodiment, in which the four divided pixels 2 are arranged vertically vertically one by one. One divided pixel 2 of each of the color pixels 2 adjacent to the left and right in the horizontal direction is arranged in the vacant part in a complicated arrangement, so that the arrangement position of the divided pixel 2 of the adjacent color pixel 1 is The divided array is inverted for each pixel.

According to the seventh and seventh embodiments, one or more divided pixels 2 of adjacent color pixels 1 are arranged in an intertwined manner, so that color pixels 1 and divided pixels 2 are arranged more closely than in the fifth and sixth embodiments. pixel 2
The structure is less noticeable and color mixing is more likely to occur.

FIG. 9 is a pixel layout diagram for explaining the ninth embodiment,
Color pixel 1 is divided into four divided pixels 2, and these divided pixels 2 are arranged in a diamond shape as shown by the broken line, and divided pixels 2 of color pixel 1 adjacent to the empty part of this diamond are arranged in a complicated manner. It is a divided arrangement, and the same effects as the seventh and seventh embodiments can be expected.

FIG. 10 is a pixel arrangement diagram for explaining an embodiment in a cylinder. In this embodiment, a color pixel 1 is divided into four divided pixels 2, and these divided pixels 2 form a triangle, and these four divided pixels 2 are divided into four divided pixels 2. The divided pixels 2 together constitute a diamond-shaped color pixel 1, and such a diamond-shaped color pixel 1 and the color pixels 1 that are vertically adjacent to each other are arranged in a comb-like intricate divided arrangement.

FIG. 11 is a pixel arrangement diagram for explaining an embodiment in a cylinder. This embodiment is a modification of the embodiment in a cylinder, and the divided pixels 2 form a trapezoid, and the four divided pixels 2 are integrated. In this embodiment, a hexagonal color pixel 1 is constructed.

According to the example in the cylinder and in the cylinder, the color pixels 1 that are adjacent to each other vertically are arranged in a complicated divided arrangement in a comb-like shape, so that the structure of the color pixels 1 is not only inconspicuous, but also the structure between the color pixels 1 is Visual color mixture fusion is likely to occur, and visual image quality can be improved.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

For example, the embodiments may be implemented by changing the horizontal and vertical arrangement relationships in each of the above-described embodiments.

[Effects of the Invention] As described above, according to the pixel division arrangement method for a color display element according to the present invention, it is possible to make image point defects in a displayed image less noticeable, the structure of divided pixels and color pixels also less noticeable, and to make adjacent colors less noticeable. A high-quality flat color display device can be provided by facilitating color mixing and fusion between pixels.

[Brief explanation of the drawing]

FIGS. 1 to 11 are pixel layout diagrams for explaining embodiments of the present invention, and FIGS. 12 to 14 are pixel layout diagrams for explaining conventional pixel layouts. 1...Color pixel...Divided pixel

Claims (9)

[Claims] (1) In a pixel division arrangement method for a color display element in which a color pixel is composed of a plurality of divided pixels, the pixel division arrangement for a color display element is characterized in that divided pixels of adjacent color pixels are arranged in an intertwined manner. Law. (2) A pixel division arrangement method for a color display element in which a color pixel is composed of a plurality of divided pixels, characterized in that the shape of the divided pixels is such that divided pixels of adjacent color pixels intertwine with each other. pixel division arrangement method for color display elements. (3) In a pixel division arrangement method for a color display element in which a color pixel is composed of a plurality of divided pixels, the divided pixels of adjacent color pixels are arranged in a complicated manner by at least one divided pixel ( 1) or the pixel division arrangement method for a color display element according to claim (2). (4) The pixel division arrangement method for a color display element according to claim (1) or claim (2), wherein the divided pixels constituting the color pixel are arranged in a diagonal arrangement for each divided pixel. (5) Claim (1) or (2) characterized in that the arrangement of the divided pixels constituting the color pixel with respect to the center of the color pixel is reversed for each horizontally or vertically adjacent color pixel. pixel division arrangement method for color display elements described in . (6) Claim (1), claim (2), claim (4), or claim, characterized in that the number of divided pixels constituting the color pixel is three, and the arrangement thereof is triangular or inverted triangular. The pixel division arrangement method for a color display element according to any one of item (5). (7) According to claim (1), claim (2), or claim (4), the number of divided pixels constituting the color pixel is four, and the arrangement thereof is in the shape of a cross. The pixel division arrangement method of the color display element described. (8) According to claim (1) or claim (2), each of the divided pixels forming the color pixel has a triangular shape, and the color pixel formed by these pixels has a diamond shape. pixel division arrangement method for color display elements. (9) The divided pixels constituting the color pixel each have a trapezoidal shape, and the color pixel constituted by these pixels is hexagonal.
) pixel division arrangement method for color display elements.