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Composite membrane and manufacturing method of the same, color filter and display device equipped therewith

A composite film and film technology, which is applied to the surface coating liquid device, inking device, optical filter, etc., can solve the problem of uneven color density and other problems

Inactive Publication Date: 2004-08-25
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon causes unevenness of color density between the middle part and the side part in the color filter

Method used

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  • Composite membrane and manufacturing method of the same, color filter and display device equipped therewith
  • Composite membrane and manufacturing method of the same, color filter and display device equipped therewith
  • Composite membrane and manufacturing method of the same, color filter and display device equipped therewith

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Embodiment Construction

[0078] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 10 .

[0079] 1(a) is a plan view of the color filter 10 of this embodiment, and FIG. 1(b) is a cross-sectional view taken along line A-A of FIG. 1(a).

[0080] The color filter 10 is disposed on a substrate 11 . The color filter 10 is provided with color segments 17 as a transparent color film, and a black matrix 12 as a light shielding film. The color segment 17 includes a red segment 17r, a green segment 17g, and a blue segment 17b, corresponding to three primary colors RGB.

[0081] Here, the color segment 17 is a thin film formed by curing a thin film material applied by an inkjet method described below. In the color segments 17 thus formed, red segments 17r, green segments 17g, and blue segments 17b are patterned in a stripe shape.

[0082] The black matrix 12 acts as a spacer that separates adjacent color segments in the applied film material, i.e., is used to sepa...

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Abstract

A color filter includes a black matrix and a color section. The black matrix has a plurality of partition sections extended alongside each other with a gap region therebetween. The color section is in a gap region of the black matrix. The color section is formed by applying a film material into the gap region of the black matrix by the ink-jet method, and then curing the film material thus applied. The black matrix has a protrusion section by which the gap region is partially narrowed. In applying the film material, the protrusion section functions as a barrier against the film material flowing, in the gap region. This prevents color mixing and uneven color density while maintaining high productivity.

Description

technical field [0001] The present invention relates to a composite film such as a color filter, a method for manufacturing the composite film, a color filter manufactured from the composite film, and a display device provided with the color filter. [0002] More broadly, the present invention relates to an improved method for inkjet printing. Background technique [0003] Recently, liquid crystal display devices are widely used as display devices in display devices such as word processors, computers, browsing systems, and the like. Not only that, liquid crystal display devices are improved to allow color display by liquid crystal display devices. [0004] In particular, active matrix type liquid crystal display devices are mainly used. In an active matrix type liquid crystal display device, pixels are arranged in a matrix, and active elements such as thin film transistors are used to provide each pixel. The active element is used as a switching element of the pixel, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/26B05D5/06B41J2/01G02B5/20G02B5/22
CPCG02B5/223B41J2202/09G02B5/201G02F1/133512G02F1/133514
Inventor 田中惠一岸本觉
Owner SHARP KK
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