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Methods and apparatus for making color filter by discharging a filter material

A manufacturing method and a technology for manufacturing a device, which are applied in the field of manufacturing and manufacturing devices of color filters, liquid crystal devices, and EL devices, and can solve problems such as uneven light transmission characteristics of the color filter plane

Inactive Publication Date: 2006-11-15
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Therefore, in something like Figure 22 When the color filter element 303 is formed with the inkjet head 306 as shown in (b), then as Figure 23 As shown in (b), often at the position P1 corresponding to the end of the inkjet head 306 or the central part P2, or even at the two positions of P1 and P2 at the same time, stripes with relatively deep density are formed, thereby causing the plane transparency of the color filter. The problem of non-uniform light characteristics

Method used

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  • Methods and apparatus for making color filter by discharging a filter material
  • Methods and apparatus for making color filter by discharging a filter material
  • Methods and apparatus for making color filter by discharging a filter material

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no. 1 example

[0060]Next, an embodiment of a manufacturing method of a color filter and a manufacturing apparatus thereof will be described. First, before describing these manufacturing methods and manufacturing apparatuses, a description will be given of color filters manufactured by these manufacturing methods and the like. Figure 5 (a) is a schematic diagram of the planar structure of one embodiment of the color filter. in addition, Figure 6 (d) shows the Figure 5 (a) The cross-sectional structure of line VI-VI cut off.

[0061] The forming process of the color filter 1 of this embodiment is as follows: on the surface of a square substrate 2 formed by materials such as glass and plastics, a plurality of color filter elements 3 are first arranged in a dot pattern shape, and in this embodiment they are arranged into dot-matrix-like, then, as in Figure 6 As shown in (d), the protective film 4 is laminated thereon. also, Figure 5 (a) shows the planar shape of the color filter 1 wi...

no. 2 Embodiment

[0125] Fig. 2 schematically shows in another embodiment of the manufacturing method and manufacturing device of the color filter of the present invention, how to use the inkjet head 22 to form each color filter element in the color filter forming area 11 on the mother substrate 12 Zone 7 sprays the ink, that is, the color filter element material.

[0126] Outline process carried out in the present embodiment, and Figure 6 The process shown in is the same; the inkjet device for inkjet is also the same as Figure 8 The devices shown in are mechanically identical. and, Figure 14 In principle, the CPU69 divides the plurality of nozzles 27 forming the nozzle row 28 into n groups, such as four groups, and then determines the sub-scanning amount δ corresponding to the length L / n or L / 4 of each nozzle group. also with figure 1 The situation is the same.

[0127] This embodiment and figure 1 The difference from the previous embodiment shown is that for Figure 14 The program...

no. 3 Embodiment

[0131] image 3 It schematically shows how to use the inkjet head 22 to spray paint on each color filter element forming area 7 in the color filter forming area 11 on the mother substrate 12 in another embodiment of the manufacturing method and manufacturing device of the color filter of the present invention. Ink is also the color filter element material.

[0132] Outline process carried out in the present embodiment, and Figure 6 The process shown in is the same; the inkjet device for inkjet is also the same as Figure 8 The devices shown in are mechanically identical. and, Figure 14 CPU69 in the principle divides the plurality of nozzles 27 that form nozzle column 28 into n groups, such as four groups, and this point is also related to figure 1 The situation is the same.

[0133] This embodiment and figure 1 The first embodiment shown differs in that the Figure 15 In step S12, when the inkjet head 22 is set at the drawing start position on the mother substrate 1...

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Abstract

To two-dimensionally uniformize optical characteristics of optical members such as light transmission characteristics of a color filter, color displaying characteristics of a liquid crystal device, light emitting characteristics of an EL(electroluminescence) light emitting face or the like. The method for manufacturing the color filter consists of manufacturing the same prepared by aligning a plurality of dot shaped filter elements on a substrate 12. While principally scanning the substrate 12 in X-direction with an inkjet head 22 having a nozzle row 28 composed of a plurality of nozzles 27 aligned in a row shape, filter materials are selectively discharged from a plurality of the nozzles 27 and filter elements 3 are formed on filter element regions 7. A plurality of the nozzles 27 are divided into a plurality of groups and the principal scanning is repeated two or more times by subsidiarily scanning the inkjet head 22 in Y-direction with a distance &delta so as to make these nozzle groups scan the same part of the substrate 12 in duplication.

Description

[0001] This application is a divisional application of the Chinese patent application 01130306.9 filed on November 20, 2001, entitled "Manufacturing Method and Device for Color Filters, Liquid Crystal Devices, and EL Devices". technical field [0002] The present invention relates to a manufacturing method and manufacturing apparatus for manufacturing color filters used in optical devices such as liquid crystal devices. The present invention also relates to a manufacturing method and a manufacturing device of a liquid crystal device having a color filter. The present invention also relates to a manufacturing method and a manufacturing device of an EL device for display using an EL light-emitting layer, and to a material spraying method and a material spraying device for spraying a material onto an object. In addition, it also relates to an electronic device equipped with a liquid crystal device or an EL device produced by these manufacturing methods. Background technique ...

Claims

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Application Information

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IPC IPC(8): B41J2/21B41J2/07B41J2/15
Inventor 川濑智己有贺久片上悟清水政春木口浩史
Owner SEIKO EPSON CORP