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Method for forming a pattern and liquid ejection apparatus

A droplet and pattern technology, applied in the field of pattern forming method and droplet ejection device, can solve the problems of reduced laser B irradiation intensity and low accuracy of laser B irradiation position, etc.

Inactive Publication Date: 2007-04-11
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the irradiation intensity of the laser beam B decreases, and the accuracy of the irradiation position of the laser beam B is low.

Method used

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  • Method for forming a pattern and liquid ejection apparatus
  • Method for forming a pattern and liquid ejection apparatus
  • Method for forming a pattern and liquid ejection apparatus

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Embodiment Construction

[0020] Next, a liquid crystal display device having an identification code formed by the pattern forming method of the present invention will be described with reference to FIGS. 1 to 5 . When describing this method, the directions of the X arrow, the Y arrow, and the Z arrow are defined as shown in FIG. 2 .

[0021] As shown in FIG. 1 , the liquid crystal display device 1 has a square glass substrate (hereinafter referred to as a substrate) 2 . A quadrangular display portion 3 in which liquid crystal molecules are enclosed is formed on the surface 2 a of the substrate 2 up to the center, and a scanning line driver circuit 4 and a data line driver circuit 5 are formed outside the display portion 3 . In the liquid crystal display device 1 , the alignment state of the liquid crystal molecules is controlled based on the scanning signal supplied from the scanning line driving device 4 and the data signal supplied from the data line driving circuit 5 . Furthermore, since the plane...

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Abstract

A laser head is provided in the vicinity of an ejection head. A laser beam radiated by the laser head reaches a substrate reflecting position on a surface of the substrate at a critical angle and is then totally reflected by the substrate toward the ejection head. After having been reflected by the substrate, the laser beam is totally reflected by a reflective surface of a nozzle plate toward the substrate. The laser beam thus reaches a radiating position on the surface of the substrate at a radiating angle (the critical angle).

Description

technical field [0001] The present invention relates to a pattern forming method and a droplet ejecting device. Background technique [0002] Currently, display devices such as liquid crystal display devices and electroluminescence display devices have substrates for displaying images. On such a substrate, an identification code (for example, a two-dimensional code) that encodes information such as a manufacturer and its product code is formed for quality control and manufacturing control. The identification code is composed of structures (dots such as colored films and recesses) for reproducing the identification code. The structure is formed in a predetermined pattern in a plurality of dot formation areas (data cells). [0003] As a method for forming the identification code, for example, Japanese Patent Laid-Open No. 11-77340 and Japanese Patent Laid-Open No. 2003-127537 describe: a laser sputtering method for forming a code pattern using a sputtering method; Water jet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M1/26B05C5/00B05C9/12B05D1/26B05D3/06G02F1/13
CPCB41J3/407B41J11/002B41J11/00216G02F1/13
Inventor 三浦弘纲
Owner SEIKO EPSON CORP