Method for disposing material by droplet ejection, display device, method for manufacturing display device, and electronic apparatus

Abstract

The invention provides a method for suppressing insufficient spread of droplets or mixing of the droplets in neighboring regions when a liquid material is disposed in the regions on a substrate by ejecting the droplets composed of the liquid material. In addition, for a display device, the structure in which insufficient spread of droplets or mixing of the droplets in neighboring regions can be suppressed and the manufacturing method therefor are provided. To accomplish the above, substantially square regions can be formed by a partition provided on a substrate. In each region, among internal surfaces and of the partition surrounding this region, the internal surfaces forming the long sides of the region have irregularities. In addition, the distance between parts of the partition opposing each other with one of regions provided therebetween is increased and decreased along the long side of the region. Furthermore, along the long side of the region, the width of the partition will be increased and decreased.

Description

[0001]This is a Divisional of application Ser. No. 10 / 375,144 filed Feb. 28, 2003, which claims the benefit of Japanese Patent Application No. 2002-070948 filed Mar. 14, 2002. The disclosure of the prior applications is hereby incorporated by reference herein in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The present invention relates to methods for disposing a material by droplet ejection, display devices, methods for manufacturing a display device, and electronic apparatuses. More particularly, the invention relates to the structure suitably used for a color filter or an electrooptic device and a method for manufacturing the same.[0004]2. Description of Related Art[0005]In various display devices, color filters have been generally used for performing color display. In the color filter, dot-shaped filter elements in various colors, R (red), G (green), and B (blue), are arranged on a substrate composed of glass, plastic, or the like in a predetermined pa...

AI Technical Summary

Benefits of technology

The present invention provides a method for disposing a liquid material on a substrate by ejecting droplets of the liquid material. The method includes forming a partition on the substrate and hitting regions of the substrate with droplets. The distance between parts of the partition is increased and decreased along the extending direction of the partition, and the droplets hit positions each corresponding to the maximum distance between the parts of the partition. This results in the liquid material becoming less likely to overflow the partition and enter neighboring regions, reducing mixing and improving display quality. The method also allows for increased yield of the product and efficient production. The invention also provides a display device with improved display quality.

Problems solved by technology

However, when a highly precise and fine display device is formed, since the amount of the droplet 8 is extremely small, it is generally difficult to precisely control the amount of the droplet, and in addition, decrease in yield of the product may occur in some cases together with decrease in production efficiency.

However, this increase may cause decrease in aperture ratio required for display devices, and as a result, a problem may occur in that it becomes difficult to realize a highly precise and fine display structure.

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