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Dispensing method and device for dispensing

A dispenser and fluid technology, applied to laboratory containers, chemical instruments and methods, instruments, etc., can solve problems such as difficulty in controlling the thickness of oil layers

Active Publication Date: 2012-10-10
LIQUAVISTA BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this method of providing an oil layer is that it is difficult to control the thickness of the oil layer

Method used

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  • Dispensing method and device for dispensing
  • Dispensing method and device for dispensing

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] figure 1 A cross-section of a first embodiment of a device for dispensing a first fluid on a surface according to the invention is shown. Plate 1 has a surface 2 on which a first fluid layer is to be deposited. A dispenser in the form of a syringe needle 3 with a central channel 4 moves over the surface in direction 5 . A first fluid 6 is supplied through the channel 4 . The surface 2 is covered by a layer of the second fluid 7 . The needle has a circular opening 8 which in operation is located in the second fluid and above the surface 2 . The third fluid 9 is partly inside the channel 4 and partly between the opening 4 and the surface 2 . The third fluid forms a sphere 10 between the opening 4 and the surface 2 . The ball 10 can locally adjoin the surface 2 .

[0049] The first fluid 6 moves as a relatively thin layer along the interface 11 between the second fluid 7 and the third fluid 9 from the syringe 3 to the surface 2 where it settles as a layer 12 . The f...

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PUM

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Abstract

Dispensing method and device for dispensing A method of providing a laye r of a first fluid on an area (2) of a surface by means of a dispenser (3) having an opening (8). The method comprises the step of providing a layer of a second fluid (7) on the surface, the second fluid being immiscible with the first fluid. It also includes the step of arranging the opening of the dispenser in the second fluid above the area and the step of dispensing the first fluid (6) through the opening assisted by a third fluid (9 ) for settling on the first area, the third fluid being immiscible with the first fluid.

Description

technical field [0001] The invention relates to a method for providing a layer of a first fluid on a first area of ​​a surface by means of a dispenser. The invention also relates to a device for carrying out the method. Background technique [0002] International application WO 2005 / 098797 discloses a method for providing an oil layer on the surface of a substrate, particularly suitable for the manufacture of electrowetting displays. The surface is initially covered by a layer of water. The dispenser has an opening in the water layer above the surface. The oil flows into the distributor and forms droplets between the opening and the surface. The surface includes a first hydrophobic region surrounded by a second hydrophilic region. As the dispenser moves over the surface, the oil droplets move slowly over the first and second areas and the water on the first area is replaced by the oil layer, leaving water on the second area. [0003] A disadvantage of this method of pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/02B01L3/00
CPCG02B26/005B01L3/0293G02B26/004
Inventor 查尔斯·理查德·曼努埃尔·斯密德高尔梅拉妮·玛丽亚·许贝蒂娜·范德魏耶尔-瓦格曼斯罗伯特·哈耶斯
Owner LIQUAVISTA BV