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Color filter and color filter manufacturing method

一种彩色滤光片、制造方法的技术，应用在彩色滤光片领域，能够解决不能基板与相对基板间隔保持均匀等问题，达到显示质量高的效果

Inactive Publication Date: 2012-01-25
TOPPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where the height variation of the pseudo-columnar spacer is large, a new problem arises that the gap between the substrate and the opposing substrate cannot be kept uniform

Method used

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  • Color filter and color filter manufacturing method
  • Color filter and color filter manufacturing method
  • Color filter and color filter manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0079] figure 1 It is a plan view showing an example of a color filter according to the first embodiment of the present invention formed on a substrate, figure 2 yes figure 1 The cross-sectional view along the X-X line of the substrate shown, image 3 yes figure 1 A cross-sectional view of the substrate along line X2-X2 is shown. In addition, in the following description, the direction in which a board|substrate is conveyed at the time of manufacture is made into the X-axis direction.

[0080] figure 1 Six (2 rows×3 rows) of color filters 1 are formed on the substrate 50 shown. In the color filter 1, a plurality of pixels arranged in the X-axis direction and the Y-axis direction are formed. The color filter 1 includes a substrate 50 , a black matrix 21 , a stripe pattern 22 , a plurality of columnar spacers Cs, and a plurality of dummy columnar spacers D-Cs.

[0081] The black matrix 21 is a light-shielding layer that divides a rectangular display portion A (corres...

no. 2 approach

[0098] Figure 5 It is a partial cross-sectional view of the color filter of the second embodiment. also, Figure 5 shows the equivalent of figure 1 Shown is a portion of the cross-section of the substrate along line X-X. Since the manufacturing method of the color filter of this embodiment is the same as that of the first embodiment, repeated description is omitted.

[0099] As described above, the length (X-axis direction) of the stripe pattern 22 formed on the frame portion B varies. The greater the length of the stripe pattern 22 formed on the frame portion B, the greater the external force applied to the dummy columnar spacers D-Cs when the substrate 50 is bonded to the counter substrate. Therefore, it is preferable to change the arrangement density of the pseudo columnar spacers (the number of pseudo columnar spacers formed per unit area) according to the length of the stripe pattern 22 formed on the frame portion B.

[0100] formed in Figure 5 The length G2 of t...

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PUM

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Abstract

A color filter having excellent display quality is provided by a continuous exposure method using a compact photomask. The color filter includes: a substrate; a black matrix formed on the substrate, for dividing the substrate into rectangular display regions in which the plurality of pixels are arrayed, and non-display regions surrounding the display regions; a stripe pattern; a plurality of columnar spacers disposed in the display regions; and a plurality of dummy columnar spacers. The stripe pattern includes a plurality of colored layers extending in one direction. Each colored layer intersects with a pair of sides of the display region in a direction perpendicular to the direction in which the colored layers extend. The thickness of both end portions of each colored layer disposed on the non-display region is not uniform. The dummy columnar spacers are disposed in portions of the non-display regions, where the colored layers are absent.

Description

technical field [0001] The present invention relates to a color filter for a liquid crystal display device and an organic EL display and a method for manufacturing the color filter. Background technique [0002] In display devices such as liquid crystal display devices, color filters are widely used for displaying color images, reducing reflectance, adjusting contrast, controlling spectral characteristics, and the like. Color filters are formed by arranging colored pixels in rows and columns on a substrate. For example, a printing method or a photolithography method is known as a method of forming these colored pixels on a substrate. [0003] Figure 6 is an enlarged view of a pixel representing a color filter, Figure 7 for Figure 6 A cross-sectional view along line X-X of the shown color filter pixel. [0004] Figure 6 and Figure 7 The illustrated color filter includes a substrate 50 , a grid-shaped black matrix 21 formed on the substrate 50 , colored pixels 22 , an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02F1/1335G02F1/1339
CPCG02B5/201G02F1/13394G02F1/133516G02B5/20G02F1/1335G02F1/1339
Inventor 松井浩平八田薰安井亮辅
Owner TOPPAN INC
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