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

A technology of liquid crystal display device and color filter substrate, which is applied in the direction of exposure device, instrument, optics, etc. of photoplate making process, and can solve the problems of lower transmittance and other problems

Active Publication Date: 2008-10-22
LG DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the case where color layers of two colors overlap each other in the display direction in the LCD (as in the above-mentioned conventional art), compared with light transmitted through a single layer of a single color, light emitted in the display direction Light manifests as reduced transmittance

Method used

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

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Embodiment Construction

[0028] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0029] In the following, reference will be made to Figures 1 to 10C Embodiments of the present invention will be described.

[0030] figure 1 There are shown plan views explaining the structure of a color filter substrate for a liquid crystal display (LCD) device according to an embodiment of the present invention. Figure 2A to Figure 2C are shown along the figure 1 The cross-sectional views taken by the lines I-I', II-II', and III-III' shown.

[0031] image 3 An xy chromaticity diagram explaining color purity on a display screen of an LCD including the LCD color filter according to the present invention is shown.

[0032] Figure 4A to Figure 10C shows cross-sectional views of the various manufa...

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Abstract

This invention discloses a collar filter substrate using the liquid crystal display device and method for manufacturing the same, can realize high purity of liquid crystal color display six colors pattern and produce cheaply. A color filter substrate for a liquid crystal display device includes sub-pixel regions of three primary colors of R, G, and B formed by colored layers of the three primary colors, and sub-pixel regions of complementary colors of the three primary colors, namely, C, M, and Y, each formed by arranging two of the colored layers of the three primary colors such that the two colored layers are adjacent to each other. The colored layer thickness in each complementary-color sub-pixel region is larger than the colored layer thickness in each primary-color sub-pixel region. To compensate for the thickness difference, a transparent resin layer having no influence on the transmittance of light is formed such that the surfaces of the colored layers contacting a liquid crystal layer are leveled.

Description

technical field [0001] The present invention relates to a color filter substrate for a liquid crystal display (LCD) device capable of realizing high color purity and a manufacturing method thereof. Background technique [0002] Recently, in the field of flat panel displays (FPDs), research has been actively conducted on liquid crystal displays (LCDs), plasma display panels (PDPs), field emission displays (FEDs), vacuum fluorescent displays (VFDs), and the like. [0003] Currently, LCDs are attracting attention because of mass production technology, easy driving, high image quality, and the like. An LCD is a device that displays information on a screen using the refractive index anisotropy of liquid crystals. [0004] As conventional techniques for color display with high color purity, there are the following two examples. [0005] The first conventional technology is color filters used in reflective LCDs. The color filter includes a first layer and a second layer. The fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G03F7/20
CPCG02F1/133516G02B5/201G02F1/1335
Inventor 永山和由
Owner LG DISPLAY CO LTD