Abstract: The disclosure discloses a frame component, which includes a frame with a positioning slot in an inner edge thereof, a fabrication strip with grooves, and a plurality of support pieces; where the fabrication strip is detachably arranged in the positioning slot, and the plurality of support pieces are fixed in the grooves to form a support plane for supporting a mask.
Abstract: A plasma processing apparatus includes a processing vessel, an upper structure that is provided on an upper portion of the processing vessel and generates plasma in a lower region thereof, a structure holding ring that is fixed around the upper structure, an arm that supports the ring and is movable up and down, a screw (including a bolt) that is fixed to one of the ring and the arm, and has a tip end abutting the other, and a pin that is provided in the ring or the arm, and passes through a hole for restricting horizontal movement of the ring.
Abstract: A method of manufacturing a deposition mask includes providing a frame including a pair of first supports and a pair of second supports surrounding an opening, each of the first supports including a contact face corresponding to a face of the first support and including a fastening recess at an outer edge of the first support, inserting an insertion block corresponding in shape to the fastening recess into the fastening recess, bonding opposing ends of a mask strip having an opening pattern to the contact faces while stretching the mask strip, and removing the insertion block from the fastening recess.
Abstract: Provided is an apparatus for manufacturing a deposition mask assembly for a flat panel display, which prevents a pattern from being distorted in a pattern mask when divided pattern masks are welded to a support fixture. An apparatus for manufacturing a deposition mask assembly for a flat panel display of the present description, which includes a frame mask forming an opening, a support fixture installed in the frame mask, and a pattern mask welded to the support fixture to have a pattern allowing a deposition material to be transmitted therethrough, includes: a welding head disposed in a side of the pattern mask; and a support member supporting the support fixture in an opposite side of the welding head with the pattern mask interposed therebetween.
Abstract: A flash lamp is disclosed including an insulative envelope containing a gas and housing a pair of arcing electrodes and characterized by an instance of isolated conductive material being formed at a predetermined location on the inside of the envelope adjacent an electrode. Further disclosed is a corresponding method of manufacturing a flash lamp and apparatus for the same.
Abstract: A reworking apparatus for a display module includes a chamber and a temperature control unit. The temperature control unit controls a temperature in the chamber to reduce an adhesive property of an adhesive material of the display module. The adhesive material couples a first layer of the display module to a second layer of the display module. A stage is disposed in the chamber and holds the display module. A separation unit is disposed in the chamber and is inserted in between first and second layers of the display module. A movement unit moves the separation unit.
Abstract: A method of manufacturing a flexible display device includes: forming a soft substrate on a carrier substrate; forming a thin film layer comprising a display region on the soft substrate; removing a thin film layer excess portion of the thin film layer beyond an edge of the soft substrate; and separating the soft substrate and the carrier substrate.
Abstract: Improved recyclability of phosphors in fluorescent lamps is provided. A fluorescent lamp is constructed with phosphor particles having a specific surface area less than a certain predetermined value. During recycling, these phosphor particles are more readily separated from the basing cement used in such fluorescent lamp. A method is also provided by which such phosphors are more readily separated from the basing cement.
Abstract: A mask assembly includes a frame with an opening, at least one support stick in the frame and extending in a first direction to traverse the opening of the frame, the support stick including a communication pattern above the opening of the frame, and a mask positioned on the frame and the at least one support stick, the mask extending in a second direction perpendicular to the first direction to traverse the opening of the frame, and the mask being exposed to the opening of the frame through the communication pattern.
Abstract: A thermal transfer method for selectively transferring a red organic light material of a transfer layer from a donor substrate to a recipient substrate to form a red organic light emitting element. The donor substrate has a reflecting layer in a planned formation region of the transfer layer and an absorbing layer in a region other than the planned formation region of the transfer layer. The transfer layer is formed on an area on the front face side of the base. The transfer layer in the region where the absorbing layer is formed is selectively removed. the donor substrate and the other substrate are placed in opposition. The transfer layer on the reflecting layer is transferred to the recipient substrate.
Abstract: The present invention provides a method and device of liquid crystal photo-alignment. The method comprises: providing a liquid crystal layer, liquid crystal layer doped with reactive monomer; under influence of an electric field, using radiation light to irradiate on liquid crystal layer to trigger polymerization of monomers to achieve the photo-alignment of liquid crystal layer; wherein polymerization of monomers comprising a first stage and a second stage following the first stage, the radiation light having a first illumination in the first stage and having a second illumination in the second stage, and the first illumination being less than the second illumination.
Type:
Application
Filed:
May 17, 2012
Publication date:
October 31, 2013
Applicant:
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. ,LTD.
Abstract: The present invention discloses a voltage applying device for an LCD substrate, and the voltage applying device includes a base, a probe bar, and probe pins. The base includes a first slide rail. The probe bar is movably disposed on the first slide rail of the base, and the probe bar includes a second slide rail. The probe pins are movably disposed on the second slide rail of the probe bar, and the probe pins are utilized to contact a plurality of contact pads of the LCD substrate, so as to apply voltage on the LCD substrate. The voltage applying device of the present invention can overcome a problem of increased costs for a conventional voltage applying device can not be shared.
Type:
Application
Filed:
April 18, 2012
Publication date:
October 17, 2013
Applicant:
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.
Abstract: An apparatus for attaching substrates includes a first chamber for supporting a first substrate and a second chamber for supporting a second substrate. A main seal member is placed between the first chamber and the second chamber so as to maintain a seal and a gap between the chambers. An alignment control part is placed between the first chamber and the second chamber so as to maintain the seal, and also to allow the second chamber to move with respect to the first chamber in order to align the substrates. The alignment control part may also control a gap between the chambers, to thereby maintain a uniform gap between the substrates.
Abstract: A spark plug includes a ceramic insulator extending in the direction of an axis (CL1) and a metallic shell provided around the ceramic insulator. Talc is pressed charged between the ceramic insulator and the metallic shell and a crimp portion is formed for fixing the metallic shell and the ceramic insulator while the metallic shell having the ceramic insulator inserted thereinto is supported by a tubular receiving member. The receiving member is made movable in relation to a pressing jig in its radial direction. Thus, at the time of pressing of the talc, etc., the eccentricity between the center axis (CL2), (CL3) of the pressing jig and the axis (CL1) in the radial direction can be reduced, whereby the misalignment between the axis (CL1) and the center axis of the metallic shell or the like assembly error can be suppressed.
Abstract: The present invention discloses an alignment device and a manufacturing method for polymer stabilized vertical alignment (PS-VA) liquid crystal panel.
Type:
Application
Filed:
January 16, 2012
Publication date:
June 27, 2013
Applicant:
Shenzhen China Star Optoelectronics Technology Co. LTD.
Abstract: A method and apparatus is disclosed for rapidly joining a first glass substrate to a second glass substrate. The first glass substrate and second glass substrates are separated by a peripheral glass spacer or frame. The glass frame is sandwiched between the first and second substrates. A layer of glass frit is placed on the top and bottom surfaces of the frame or about the top and bottom peripheral edges of the substrates in contact with the frame. Heat is then applied substantially solely to the periphery of the substrates about the frame to cause the frit to melt thereby securing the top substrate to the bottom substrate.
Abstract: A curing device for liquid crystal display (LCD) panels comprises at least one layer of curing unit. The curing unit comprises two oppositely arranged platforms used for bearing LCD panels, lamps arranged between the two platforms, and an LCD panel bearing structure on the lower surface of the upper platform. Because of the LCD panel bearing structure, lamps between the two platforms can irradiate LCD panels above and below the lamps at the same time, more LCD panels can be cured in the irradiation furnace in the same size, or similarly, only a smaller irradiation furnace is needed to cure an equivalent number of LCD panels. The design of the curing device is optimized. In addition, irradiation surfaces above the lamps are fully used; compared with the existing curing device, the curing device of the present invention can greatly reduce energy consumption when used to cure an equivalent number of LCD panels.
Abstract: A first side has a first surface on which is located a material, at least a portion of which is to be formed into at least one tip. A second side has a second surface which is heated. At least one of the first and second surfaces being moved so material located on the first surface comes into physical contact with the second surface. Then at least one of the first side and the second side are moved, wherein the physical contact between the material and the second surface is maintained, causing the material to stretch between the second surface and the first surface, generating at least one capillary bridge. Movement is continued until the physical contact between the material and the second surface is broken resulting in the formation of at least one sharp conductive tip.
Type:
Application
Filed:
November 8, 2011
Publication date:
May 9, 2013
Applicant:
PALO ALTO RESEARCH CENTER INCORPORATED
Inventors:
Sanjiv Sambandan, John E. Northrup, Gregory L. Whiting, Robert A. Street
Abstract: An apparatus and a method for producing a pre-tilt angle in a liquid crystal panel are disclosed. The apparatus includes a sample stage for placing the liquid crystal panel, at least one ultraviolet (UV) light source for irradiating the liquid crystal panel so that a filler material in a liquid crystal layer rotated to a preset angle can be cured to form a pre-tilt angle, and A UV filtering sheet transmissive to UV rays with wavelengths of 320 nm to 380 nm disposed between the sample stage and the UV light source. By disposing the UV filtering sheet, the filler material in the liquid crystal layer can be quickly cured and a desirable pre-tilt angle can be formed. This shortens the time of UV irradiation, improves the efficiency of producing a pre-tilt angle in the liquid crystal panel and lowers the manufacturing cost of the liquid crystal panel.
Type:
Application
Filed:
September 23, 2011
Publication date:
March 28, 2013
Applicant:
Shenzhen China Star Optoelectronics Technology Co., LTD.
Abstract: An apparatus for attaching substrates includes a first chamber for supporting a first substrate and a second chamber for supporting a second substrate. A main seal member is placed between the first chamber and the second chamber so as to maintain a seal and a gap between the chambers. An alignment control part is placed between the first chamber and the second chamber so as to maintain the seal, and also to allow the second chamber to move with respect to the first chamber in order to align the substrates. The alignment control part may also control a gap between the chambers, to thereby maintain a uniform gap between the substrates.
Abstract: A flash lamp is disclosed including an insulative envelope containing a gas and housing a pair of arcing electrodes and characterized by an instance of isolated conductive material being formed at a predetermined location on the inside of the envelope adjacent an electrode. Further disclosed is a corresponding method of manufacturing a flash lamp and apparatus for the same.
Abstract: The present disclosure is directed to a method of manufacturing a display device including a first substrate including a conductive layer and a terminal, a second substrate, and a display element disposed between the first substrate and the second substrate. The first substrate and the second substrate are bonded together. A groove is formed in the second substrate, the groove defining a border of a facing section facing the terminal of the first substrate. The groove may be formed before bonding the first substrate and the second substrate together. A nail member is inserted into a gap between the facing section of the second substrate and the terminal of the first substrate, and the nail member is moved to a direction including a component in a direction vertical to an extending direction of the groove.
Abstract: An apparatus and method for fabricating a flat panel display device are discussed. According to an embodiment, the apparatus includes a coating line configured to form a transparent conductive metal layer on a substrate, a blackening line configured to blacken the transparent conductive metal layer, an exposure line configured to expose the blackened metal layer, a developing line configured to receive the exposed substrate having the blackened metal layer and to perform development on the received substrate to form a blackened metal pattern on the substrate, and an annealing line configured to perform annealing on the blackened metal pattern on the substrate to restore the blackened metal pattern to a transparent metal pattern.
Type:
Application
Filed:
November 9, 2011
Publication date:
May 17, 2012
Inventors:
Yong-Il KIM, Jung-Ho Bang, Gi-Sang Hong
Abstract: Provided is a film formation mask capable of preventing slit-like openings from being closed by vibrations so as to form a highly precise patterned film with stability. In a film formation mask formed by providing multiple slit-like openings in a metal foil, the shape of the opening of at least one end of the slit-like openings is asymmetrical with respect to a center line of the width direction of the slit-like openings.
Abstract: A flat display panel sealing device that can prevent separation of a sealant by applying pressure to a first substrate and a second substrate with the sealant therebetween is disclosed. While the pressure is applied, light is irradiated to the sealant, whereby the first and second substrates are sealed together.
Abstract: The apparatus for manufacturing a liquid crystal display apparatus is equipped with the XYZ?-movement mechanism can move at least one of the first and second attraction stages in a vertical direction so as to adhere the first and second substrates to each other via the sealing agent, and then move the first and second attraction stages relatively to each other in a horizontal direction on the basis of an ordered movement amount, so as to align the first and second substrates with each other, and a control device that can move the first and second substrates relatively to each other by a predetermined amount more than the ordered movement amount while aligning the first and second substrates with each other by the XYZ?-movement mechanism, so as to set the first and second substrates at target positions.
Abstract: A method and an apparatus for manufacturing a spark plug. A bending apparatus includes a bending unit having a preliminary bending unit and a main bending unit, and a gap adjusting unit. The main bending unit including pressing unit for pressing a distal end of a ground electrode toward a center electrode, and a gap adjusting unit configured to adjust a relative height position of the distal end of the ground electrode relative to a distal end of the center electrode in an axis line direction. The gap adjusting unit includes a gap adjusting unit for relatively moving the distal end of the ground electrode relative to the center electrode in a direction substantially perpendicular to the axis line direction, and a restricting unit for restricting relative movement of the distal end of the ground electrode relative to the center electrode in the axis direction.
Abstract: A shadow mask includes a frame, at least a support structure and at least a mask. The frame substantially defines a central opening region. The support structure is substantially disposed in the central opening region, and the support structure is connected to the frame in a movable manner. The mask is substantially disposed in the central opening region, and supported by the support structure.
Abstract: Disclosed is a processing apparatus which can realize highly fine batch pattern film formation for a mask, which is significantly increased in weight according to the demand for increasing the size of an object to be processed, whereby leading to a possibility of reduction in the alignment accuracy of a pattern. The processing apparatus 1 which fixes and processes an object to be processed 300 and a mask 200 includes a base 400 on which the object to be processed 300 and the mask 200 are placed. The processing apparatus 1 further includes second fixing means 101 and first fixing means 102. The second fixing means 101 includes a permanent magnet for use in fixing a mask frame 200a of the mask 200 on the base 400. The first fixing means 102 includes a permanent magnet for use in fixing a mask membranous plane 200b of the Mask 200 on the base 400. The second fixing means 101 and the first fixing means 102a, 102b are mechanisms in which each permanent magnet can move the base 400 in a vertical direction.
Abstract: A chamber assembly (226) for providing a sealed chamber (38) adjacent to a workpiece (28) includes a chamber housing (244), a chamber pressure source (246) and a seal assembly (250). The chamber housing (244) cooperates with the workpiece (28) to define at least a portion of the sealed chamber (38). The chamber pressure source (246) controls a chamber pressure within the sealed chamber (38) to be different than the environmental pressure. The seal assembly (250) seals the chamber housing (244) to the workpiece (28). The seal assembly (250) can include a first seal contact region (270) and a second seal contact region (272) that cooperate to define a seal gap (274) adjacent to at least one of the chamber housing (244) and the workpiece (28). The seal assembly (250) may further include a seal pressure source (276) for controlling a seal pressure within the seal gap (274) so that the seal pressure is different than the chamber pressure and the environmental pressure.
Type:
Application
Filed:
March 10, 2010
Publication date:
September 30, 2010
Inventors:
Fardad A. Hashemi, Hiroshi Shirasu, Douglas C. Watson
Abstract: An organic EL light emitting layer is formed in a housing including an air atmosphere having a lower moisture concentration than that of the ambient atmosphere and a lower ozone concentration than that of the ambient atmosphere.
Abstract: A method for forming an alignment layer for a liquid crystal display includes preparing a substrate, applying an alignment material for initial alignment of a liquid crystal, and applying a field flux (e.g., an electric or magnetic field) to the alignment material to determine the alignment direction of the alignment material. Further disclosed is an apparatus for forming an alignment layer for a liquid crystal display. The apparatus comprises a substrate stage on which a substrate is mounted, and an electric or magnetic field generator installed at the periphery of the substrate stage. According to the method and the apparatus, since the alignment direction of an alignment material is determined by using an electric or magnetic field, no physical contact with a substrate is required and thus the problem of light leakage caused by rubbing alignment is solved.
Type:
Application
Filed:
December 14, 2009
Publication date:
April 15, 2010
Inventors:
Chang Dong Kim, Hyun Sik Seo, Kwang Hoon Shin, Dae Hyun Nam
Abstract: A method of fabricating a liquid crystal display device includes forming a thin film transistor on a first substrate, forming a color filter on a second substrate, and forming a spacer on one of the first and second substrates, the spacer being formed by a distributing apparatus, and forming a liquid crystal layer between first and second substrates.
Abstract: An optical device deploring a phosphor layer having a textured surface to improve output of visual light is disclosed. A light emitting device includes a solid state light emitter and a phosphor layer. The solid state light emitter, for example, is configured to convert electrical energy to optical light. The phosphor layer includes a first surface and a second surface, wherein the first surface, for example, is the top surface while the second surface is the bottom surface. The phosphor layer is disposed over the solid state light emitter for generating luminous light in response to the optical light. The first surface of the phosphor layer, in one embodiment, is configured to include a texture, which has similarly shaped uniform configurations, capable of reducing total internal reflection.
Abstract: An electronic device substrate includes an insulating plate base, an electronic circuit formed on one surface of the base, and a conductive film formed on the other surface of the base and having electrical conductivity. The electronic device substrate is completed through a manufacturing process including charge-removal movement in which removal of a charge of the base is combined with movement of the electronic device substrate. In the charge-removal movement, the electronic device substrate is moved with being supported by a substrate support part that has electrical conductivity and is grounded. The substrate support part abuts the conductive film during the charge-removal movement.
Abstract: The present invention relates to a liquid device, liquid device manufacturing apparatus and method, and an image display device that are so configured as to achieve increase in the capacitance and allow suppression of breakdown. An insulating film 43 having a higher insulating property and a higher dielectric constant than a water-repellent film 44 is newly formed between a lower electrode 42 and the water-repellent film 44, to thereby compensate for the dielectric strength and suppress breakdown. As the material of the insulating film 43, one having a higher insulating property and a higher dielectric constant is preferable. For example, polymer materials and inorganic materials are cited. For example, SOG is a silica-based inorganic coating material. A solution thereof is applied and deposited by a spin-coating method or the like, followed by being turned to glass through baking at a comparatively-low temperature. The present invention can be applied to a liquid device.
Abstract: An image processing apparatus having a plurality of Bayer arrays each including 4 pixels sharing a common electrode connected to a vertical signal line wherein: each of the pixels has a pixel electrode connected to a horizontal signal line; and the location of each of the horizontal signal lines and the location of each of the pixel electrodes each connected to one of the horizontal signal lines are determined so that the locations in a neighboring Bayer array are a mirror image of counterpart locations in another Bayer array adjacent to the neighboring Bayer array.
Abstract: A method for cutting a liquid crystal display panel includes transferring a pair of mother substrates on which a plurality of panel regions have been disposed to a scribing unit; forming first and second prearranged cut lines on front and rear surfaces of the mother substrates using a scribing unit; transferring the mother substrates with the first and second prearranged cut lines formed thereon to a breaking component; and moving a transfer unit which includes a body having a plurality of suction members and a steam generator installed at an edge of the body to an upper side of the mother substrates, and separating liquid crystal display panels formed at the panel regions from a dummy glass therearound while spraying steam onto the surface of the mother substrates through the steam generator of the transfer unit.
Abstract: To provide: a production method of a liquid crystal display device, the production method being capable of efficiently and stably providing alignment treatment for an alignment film of the liquid crystal display device, in which a plurality of domains is formed in a pixel region; and an exposure device for alignment treatment.
Abstract: This disclosure relates to an apparatus and a method for making or baking a fluorescent lamp. An apparatus for baking a fluorescent lamp includes a heater to heat a plurality of quartz tubes. Each tube has a fluorescent lamp provided therein. A plurality of rollers rotates the quartz tubes placed thereon, and a transfer block has a plurality of auxiliary rollers. The transfer block is configured to move in a first direction to transfer the plurality of quartz tubes from the plurality of rotating rollers to the plurality of auxiliary rollers. A process for heating at least one fluorescent lamp includes a step of providing a plurality of quartz tubes on a plurality of rotating rollers, at least one quartz tube having a fluorescent lamp provided therein, heating the plurality of quartz tubes while being rotated on the plurality of rollers, and transferring the plurality of quartz tube using a transfer block having a plurality of auxiliary rollers.
Type:
Application
Filed:
October 31, 2008
Publication date:
October 8, 2009
Inventors:
Min-Suk KIM, Kang-Heum Lee, Tai-Hee Kim, Eun-Suk Kim, Min-Soo Kim
Abstract: The system includes a closed loop process line, multiple carts which traverse the process line, a substrate magazine installed to each cart, evacuation tube connectors (each holding an evacuation tube) installed to each cart, an evacuation unit installed to each cart to connect with the evacuation tube connector, a heat treating oven in which a sealing and evacuation process is conducted, a loading-unloading station provided at the process line, substrate and evacuation tube delivery conveyors, control data driven robots provided at the loading-unloading station, a panel discharge conveyor which removes panels from the loading-unloading station, and robot controllers which actuate the robots.
Abstract: In a method of cutting a plasma display panel, a front glass substrate and a rear glass substrate are sealed so as to face each other. The front glass substrate and the rear glass substrate are sandwiched between pairs of rotating cutters, and the pairs of rotating cutters are pressed onto the front glass substrate and the rear glass substrate to be in contact therewith so that the rotating cutters are run thereon in order to cut the substrates.
Type:
Application
Filed:
January 17, 2006
Publication date:
June 18, 2009
Applicant:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Abstract: Disclosed is a light emitting device manufacturing apparatus including a plurality of processing chambers for performing a substrate processing for forming, on a target substrate, a light emitting device having multiple layers including an organic layer, wherein each of the plurality of processing chambers is configured to perform a substrate process on the target substrate while maintaining the target substrate such that its device forming surface, on which the light emitting device is to be formed, is oriented toward a direction opposite to a direction of gravity.
Type:
Application
Filed:
June 13, 2007
Publication date:
June 18, 2009
Applicants:
TOKYO ELECTRON LIMITED, NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
Abstract: A method of manufacturing an LED lamp is disclosed. The method includes admixing an uncured curable liquid resin and a phosphor, dispensing the uncured admixture on an LED chip, centrifuging the chip and the admixture to disperse the phosphor particles in the uncured resin, and curing the resin while the phosphor particles remain distributed.
Type:
Application
Filed:
December 14, 2007
Publication date:
June 18, 2009
Inventors:
Christopher P. Hussell, David T. Emerson
Abstract: A mask assembly for thin film vapor deposition of a flat panel display is disclosed. In the mask assembly, a cleansing solution remaining in the gap between a unit mask and a frame after cleansing the mask assembly may be minimized. The mask assembly includes a frame and a plurality of unit masks. The frame includes a pair of first supporting portions and a pair of second supporting portions that surround an opening. The plurality of unit masks have at least one set of pattern openings, and the unit masks are fixed on the first supporting portion while having a tensile force applied thereto. The first supporting portion includes a first surface and a second surface. The unit masks are fixed on the first surface, and the second surface has a height difference to the first surface along a thickness direction of the unit masks from the first surface.
Abstract: A microchannel plate (MCP) is formed from a boule. The MCP includes a plate having opposing end surfaces formed of acid resistant glass and acid etchable glass, and multiple channels extending longitudinally between the opposing end surfaces. The multiple channels are formed by circumferential walls of the acid resistant glass that surround the acid etchable glass. A respective circumferential wall forms a curved surface extending longitudinally between the opposing end surfaces. The curved surface is configured to reduce light from passing from one end surface to the other end surface. The acid resistant glass has a lower softening temperature than the acid etchable glass. As a result, the acid etchable glass may be subjected to a bending process, without reducing the diameter size of the microchannels that are formed after the bending process.
Abstract: A display panel includes a first substrate, a second substrate superposed on the first substrate with liquid crystal posed therebetween to serve as a display layer, a sealing member disposed between the first substrate and the second substrate and surrounding the display layer, a resin layer disposed on at least one of the first substrate and the second substrate at a surface facing away from the display layer, and a polarizing plate stuck on a surface of the resin layer.
Abstract: A discharge method is provided for discharging a fluid from nozzle sets having nozzles arrayed between first and second end portions. The method includes classifying each of the nozzle sets into one of a first nozzle group having a distribution characteristic in which a discharge quantity at the second end portion is greater than the discharge quantity at the first end portion, a second nozzle group having the distribution characteristic in which the discharge quantity at the first end portion is greater than the discharge quantity at the second end portion, and a third nozzle group having the distribution characteristic in which the discharge quantity at the first end portion is substantially the same as the discharge quantity at the second end portion. The method also includes forming a nozzle formation including the nozzle sets classified as the first nozzle group, the second nozzle group and/or the third nozzle group.