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Color display substrate, color filter substrate, color luminescent substrate, manufacturing method of color display substrate, electro-optical apparatus, electronic device, film-forming method, film-forming apparatus, and display motherboard

This is a Division of application Ser. No. 10/131,472 filed Apr. 25, 2002. The disclosure of the prior application is hereby incorporated by reference herein in its entirety.

1. Field of Invention

The present invention relates to a color display substrate, a color filter substrate, a color luminescent substrate, a manufacturing method of the color display substrate, an electro-optical apparatus, an electronic device, a film-forming method, a film-forming apparatus, and a display motherboard.

2. Description of Related Art

Recently, along with advancements in personal computers, especially in portable personal computers and portable information devices, the demand for liquid crystal color displays has strongly increased. Accordingly, an urgent need exists to establish a method of providing an excellent display at a fair price. In order to provide environmental protection, conversion into, and enhancement of, methods to reduce environmental loading are also demanded.

The following is a related art method for manufacturing a color filter.

In the method, first, a chrome thin film is patterned by photolithography and etching so as to form black matrixes as light shielding material. Then, after coating clearances between the black matrixes with red, green, and blue photoresists, a spin coating method is performed for each color, and patterning is performed by photolithography. Thereby, color matrixes, in which red, green, and blue colored layers (color dots) are arranged to be adjacent to one another, are formed. In this manufacturing method, the photolithography process has to be repeated for each color, and since an unnecessary portion is removed for patterning each color, losses in a photoresist are produced, resulting in a color filter with high cost and high environmental loading.

Thus, as a method for addressing or solving the problem of such a manufacturing method, a method employing an inkjet technique is proposed in Japanese Unexamined Patent Application Publication No. 59-75205, for example. According to this method, after partitions are created on a transparent substrate in matrix arrangements so as to define a color-dot-forming region with a material with low wettability to ink, the color dot is formed by coating within the partition with a non-photosensitive color material by the inkjet technique. In this method, the complexity of the photolithography process can be eased, and also losses in color material can be reduced. Various other related art manufacturing methods employing a process of coating with the non-photosensitive color material by the inkjet technique have also been proposed.

The present invention provides a manufacturing method capable of efficiently obtaining a color display substrate having a plurality of color display elements arranged in matrix arrangements, such as a color filter substrate and color-luminescent substrate.

The present invention also provides a color display substrate manufactured by the manufacturing method mentioned above, such as a color filter substrate and color luminescent substrate.

The present invention further provides an electro-optical apparatus and electronic device having a color indicator obtained from the color display substrate mentioned above.

A color display substrate according to the present invention includes a plurality of color display elements arranged in a matrix pattern,

a plurality of pixels that constitute each of the plurality of color display elements, and

a plurality of color dots that constitute each of the plurality of pixels.

The plurality of color dots have a first dot pitch in a direction perpendicular to a first base line.

Each of the plurality of color dots is located at a distance of at least substantially an integral multiple of the first dot pitch from the first base line.

The color display substrate can be efficiently obtained by a manufacturing method, which will be described below.

The color display substrate according to the present invention may have various other features as follows.

(A) The color dots of the color display elements may further be located at a distance of substantially an integral multiple of a second dot pitch in a direction perpendicular to a second base line from the second base line perpendicular to the first base line.