The present invention concerns a device (1) for applying adhesive to cores for a log comprising moving means (3) configured to cause at least one core (5) to advance along a feed direction (A) and dispensing means (7) configured for dispensing an amount of adhesive (9) on said core (5).

According to the invention such dispensing means (7) are moveable along an application direction (B) substantially orthogonal to the feed direction (A) and are configured to selectively dispense said amount of adhesive (9) along portions (11) of the core (5) during movement along said application direction (B).

A manufacturing method of a display device includes forming a first droplet on a first region of a substrate by nozzles, moving the nozzles onto a second region of the substrate spaced apart in a first direction from the first region, forming a second droplet on the second region, calculating a first distance between the first and second droplets, moving the nozzles onto a third region of the substrate spaced apart in a direction opposite to the first direction from the second region, forming a third droplet on the third region, moving the nozzles onto a fourth region of the substrate spaced apart in the first direction from the third region, forming a fourth droplet on the fourth region, calculating a second distance between the third and the fourth droplets, and calculating a jetting velocity of each of the nozzles based on the first distance and the second distance.

Systems useful for reinforcing a support mat over at least one seam formed between upper and lower panels of the mat include at least one extruder configured to apply weld-forming material over the seam(s) to form at least one weld atop the seam(s) and at least one electronic controller associated with the extruder.

Disclosed are a coating apparatus and a coating method. The coating apparatus includes a chamber, a support located in an interior space of the chamber and configured to support a substrate which is to be coated, an ejection nozzle configured to eject a coating material toward the support, and an electric field forming unit configured to form an electric field in a movement path of the coating material to provide kinetic energy for the coating material.

Systems for the manufacturing of waveguide cells in accordance with various embodiments can be configured and implemented in many different ways. In many embodiments, various deposition mechanisms are used to deposit layer(s) of optical recording material onto a transparent substrate. A second transparent substrate can be provided, and the three layers can be laminated to form a waveguide cell. Suitable optical recording material can vary widely depending on the given application. In some embodiments, the optical recording material deposited has a similar composition throughout the layer. In a number of embodiments, the optical recording material spatially varies in composition, allowing for the formation of optical elements with varying characteristics. Regardless of the composition of the optical recording material, any method of placing or depositing the optical recording material onto a substrate can be utilized.

A method of manufacturing an electrowetting device. An emulsion is dispensed on a surface of a first support plate comprising an electrode. The emulsion comprises a first fluid dispersed in a second fluid immiscible with the first fluid, and, dispersed within the first fluid, a third fluid immiscible with the first fluid. The method includes coalescing the first fluid to form a layer of the first fluid on the surface of the first support plate.

Provided is a coating apparatus including: a stage unit which floats the substrate to a predetermined height by using wind pressure of gas; a droplet discharge unit which drops the droplet of the functional liquid on the substrate floated to the predetermined height from the stage unit; a main scanning direction moving unit which moves the substrate, which is floated to the predetermined height from the stage unit, in the main scanning direction while holding the substrate; and a sub-scanning direction moving unit which moves the droplet discharge unit in the sub-scanning direction with respect to the substrate floated to the predetermined height from the stage unit. The sub-scanning direction moving unit moves the droplet discharge unit in the sub-scanning direction while the main scanning direction moving unit repeatedly moves the substrate in the main scanning direction and the droplet discharge unit repeatedly drops the droplet.

A method of calibrating the jetting profile includes applying voltage to a piezoelectric actuator to move a valve closure structure between non-impact and impact positions, sensing the position of the valve closure structure, establishing a reference point using voltage and position data, and using the reference point to adjust the voltage applied. Another method uses a mechanical stop to calibrate a jetting system. This method includes applying voltage to the piezoelectric actuator to move the valve closure structure between non-impact and impact calibration positions, sensing the position of the valve closure structure, generating voltage and position calibration data, establishing a master reference point using this data, and using the master reference point to determine wear of at least one of: the piezoelectric actuator and the valve closure structure. Another method of operating a jetting system includes the user inputting information into a control component. Another method involves using voltage data and the position data relating to a piezoelectric actuator for preventative maintenance of one or more components of the jetting valve.

The droplet discharge device includes a liquid chamber which is in communication with a nozzle and to which a liquid material is supplied, a plunger having a tip portion that is thinner than the liquid chamber and that is moved back and forth in the liquid chamber, a piezoelectric actuator serving as a drive source that operates the plunger to be moved back and forth, a lever mechanism that increases a displacement of the piezoelectric actuator, a base having a mounting surface to which the piezoelectric actuator is mounted, and a discharge control device. The lever mechanism includes an arm that is operated to perform a swinging motion by the piezoelectric actuator, and a leaf spring including ends that are linked to a lower portion of the arm and to the base, and a plunger-linked portion in a central region thereof.

An application head of a coating product on a surface to be coated comprising at least two spray nozzles for the coating product, each spray nozzle suitable for spraying the coating product in the form of an aerosol stream, while simultaneously creating several droplets having a diameter smaller than the diameter of the outlet orifice of the spray nozzle.