Color filter slice, method for manufacturing the same and liquid crystal display device

A manufacturing method and technology of color filters, which are applied in the direction of optical filters, photographic plate-making process of patterned surface, instruments, etc., can solve the problems of easy degradation and unevenness of image quality

Inactive Publication Date: 2009-09-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, even if the color filter is produced by the method disclosed in Patent Documents 1 and 2, if the panel contrast (panel contrast) is increased, unevenness will occur when gray display is performed, and the image quality will easily deteriorate.
In addition, especially in the case of a large substrate with a length and width of 1 m x 1 m or more, unevenness tends to be noticeable in the form of a pitch.

Method used

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  • Color filter slice, method for manufacturing the same and liquid crystal display device
  • Color filter slice, method for manufacturing the same and liquid crystal display device
  • Color filter slice, method for manufacturing the same and liquid crystal display device

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Embodiment Construction

[0022] The present invention will be described below with reference to the accompanying drawings.

[0023] In the color filter of the present invention, a black matrix and coloring pixels of two or more colors separated by the black matrix are formed on the substrate, the contrast ratio is more than 5000, and the angle θ formed by the side walls and the bottom surface of the partition walls constituting the black matrix is ​​10. ° to 35°, and the relative standard deviation of the angle θ is 0.15 or less.

[0024] Here, the angle (theta) (it is suitably called "inclination angle (theta) of a side surface") which the side surface and the bottom surface of the partition which comprise a black matrix form is demonstrated.

[0025] image 3 and Figure 4 It is a figure which shows an example of the cross-sectional shape of the partition of the black matrix (photosensitive dark color composition layer) which comprises the color filter in this invention.

[0026] The inclination ...

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Abstract

The present invention relates to a color filter slice, a method for manufacturing the same and a liquid crystal display device. The filter slice is characterized in that contrast is larger than 5000, an angle Theta of an adjoining side surface composing a black matrix relative to a bottom surface is from 10 DEG to 35 DEG, and the relative standard deviation of the Theta is smaller than 0.15. The present invention also relates a liquid crystal display device having the color filter slice and a method for manufacturing the same. In the method, a black matrix composed of adjoining wall formed with downcutting length of 1.0-8.0<mu>m, then the black matrix is baked to form the angle of the adjoining side surface of the black matrix with thermal deformation.

Description

technical field [0001] The invention relates to a color filter, a manufacturing method thereof and a liquid crystal display device. Background technique [0002] A color filter is an indispensable component in a liquid crystal display or a solid-state imaging device. For example, color filters for liquid crystal displays (LCDs), which are already used in TV applications, require higher-quality image quality than conventional color filters for notebook computers and monitors. In addition, in order to produce large TVs, the size of substrates is increasing, and there is an increasing demand for improvement in yield and cost reduction. [0003] In the case of manufacturing color filters such as figure 1 As shown, as a black matrix, dark (black) barrier ribs 4 are formed in a matrix on a glass substrate 2 by photolithography. Next, if figure 2 As shown, in each area 5 partitioned by the black matrix 4 , colored pixels (colored patterns) of red (R), green (G), and blue (B) a...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02F1/1335G03F7/00
Inventor 高田胜之
Owner FUJIFILM CORP
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