JP2007054703A - Apparatus and method for discharge of droplet, electro-optical apparatus and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control variation of the functionality due to variation of the drying rate of a liquid. <P>SOLUTION: A droplet-discharging method is used to discharge a liquid from two or more droplet-discharging heads 110 and 120 arranged in series in the direction intersecting the scanning direction through two or more nozzles 130. According to the method, the discharging time interval for the liquid discharged from different nozzles of a specified droplet-discharging head 110 at different timing and that for the liquid discharged from different nozzles of another specified droplet-discharging head 120 adjacent to the droplet-discharging head 110 at different timing are set to be the same, and the discharging time interval for the liquid discharged from the nozzle of the specified droplet-discharging head closest to the adjacent droplet-discharging head and that for the liquid discharged from the nozzle of the adjacent droplet-discharging head closest to the specified droplet-discharging head are set to be the same. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a droplet discharge device and method, an electro-optical device, and an electronic apparatus.

Conventionally, a droplet discharge device (for example, an ink jet printer or an ink jet plotter) that discharges a liquid material from a droplet discharge head and applies a predetermined amount of the liquid material to a desired position on a substrate has been devised.
When a liquid material is applied to a region having a width equal to or greater than the length of the droplet discharge head by such a droplet discharge device, after the liquid material is discharged while scanning the droplet discharge head in one direction, The liquid material is discharged while the droplet discharge head is changed and then scanned again. However, in such a case, the elapsed time after the ejection of the liquid material ejected before the line feed of the droplet ejection head and the liquid material ejected after the line feed of the droplet ejection head are different. Stripes occur between the applied liquid and the subsequently applied liquid. Such a stripe unevenness is not preferable because, for example, when a functional film is formed by applying a liquid material to a predetermined region, the function of the functional film is uneven.
Therefore, in order to solve such a problem, by arranging a plurality of droplet discharge heads in series, the liquid material can be scanned in a region having a width greater than the length of a single droplet discharge head at a time. A method of discharging has been proposed.
Japanese Patent Laid-Open No. 10-197873 JP 2003-249623 A

By the way, when the droplet discharge heads are arranged in series, the distance between the nozzle located at the end of one droplet discharge head and the nozzle located at the end of the other droplet discharge head is different from that of the other nozzle. Must be the same. However, due to structural limitations of the droplet discharge head, even when the end of one droplet discharge head and the end of the other droplet discharge head are brought into contact with each other, It is physically impossible to make the interval between the nozzle located at the end and the nozzle located at the end of the other droplet discharge head the same as the other nozzle interval. Therefore, at present, when a plurality of droplet discharge heads are arranged in series, one droplet discharge head interferes with the other droplet discharge head by shifting adjacent droplet discharges in the scanning direction. In addition, the gap between the nozzle located at the end of one droplet ejection head and the nozzle located at the end of the other droplet ejection head is made the same as the other nozzle interval.
However, when the adjacent droplet discharges are shifted in the scanning direction in this way, the discharge timing of one droplet discharge head and the discharge timing of the other droplet discharge head are somewhat different, which causes the uneven stripes. May occur. In particular, when a functional liquid having a high drying speed, such as alignment film ink, is ejected by a droplet ejection device, unevenness occurs even if the timing is slightly shifted as described above.

  The present invention has been made in view of the above-described problems, and an object thereof is to suppress a variation in functionality caused by a variation in drying speed of a liquid material.

  In order to achieve the above object, a droplet discharge device according to the present invention includes a plurality of droplet discharge heads that discharge a liquid material via a plurality of nozzles arranged in series in a direction crossing a scan direction. The discharge time interval of the liquid discharged from the different nozzles of the predetermined droplet discharge head at different timings and the discharge from the different nozzles of the other droplet discharge heads adjacent to the predetermined discharge head at different timings The discharge time interval of the liquid material to be discharged is the same, and the liquid material discharged from the nozzle closest to the other droplet discharge head of the predetermined droplet discharge head and the other droplet discharge head The discharge time interval with the liquid material discharged from the nozzle closest to the predetermined droplet discharge head is the same.

According to the droplet discharge device of the present invention having such characteristics, the discharge time interval of the liquid material discharged from different nozzles of the predetermined droplet discharge head at different timings and other adjacent to the predetermined discharge head The liquid discharged from different nozzles of the droplet discharge head has the same discharge time interval at a different timing, and the liquid discharged from the nozzle closest to the other droplet discharge head of the predetermined droplet discharge head The discharge time interval between the body and the liquid material discharged from the nozzle closest to the predetermined droplet discharge head of the other droplet discharge head is the same.
For this reason, all the discharge intervals of liquid bodies discharged at different timings and adjacent to each other are the same. As a result, the variation in the drying speed of the liquid material is patterned. In other words, uneven stripes are not locally formed, but uneven stripes are uniformly formed. For this reason, it is possible to suppress variations in functionality.

According to the droplet discharge device of the present invention, each of the droplet discharge heads includes a plurality of sub droplet discharge heads arranged in parallel in a direction orthogonal to the serial direction. A configuration can be employed.
By adopting such a configuration, the liquid material can be easily ejected from different nozzles at different timings by shifting the ejection timing of each sub-droplet ejection head.
Further, the predetermined liquid droplet ejection head and the other liquid droplet ejection head are arranged in the direction orthogonal to the serial direction and spaced apart from each other by the same distance. By adopting the configuration, it is possible to easily scan different droplet ejection heads at the same speed, and sequentially eject liquid materials from each sub droplet ejection head at the same interval, so that different nozzles of a given droplet ejection head can be easily The discharge time interval of the liquid material discharged at different timings from the same, and the discharge time interval of the liquid material discharged at different timings from different nozzles of another droplet discharge head adjacent to the predetermined discharge head, and The liquid material discharged from the nozzle closest to the other droplet discharge head of the predetermined droplet discharge head and the nozzle closest to the predetermined droplet discharge head of the other droplet discharge head The discharge time interval between the liquid material to be issued can be the same.

In addition, according to the droplet discharge device of the present invention, a configuration may be adopted in which a plurality of the nozzles of each of the droplet discharge heads are formed across a plurality of rows in a direction orthogonal to the serial direction. it can.
By adopting such a configuration, the liquid state can be easily discharged from different nozzles at different timings by shifting the discharge timing for each column.
Further, the nozzles of the predetermined liquid droplet ejection head and the nozzles of the other liquid droplet ejection heads are arranged at the same distance from each other in the direction perpendicular to the serial direction. By adopting the configuration, the droplet discharge heads are scanned at the same speed, and the liquid material is sequentially discharged from each row at the same interval, so that the nozzles of the predetermined droplet discharge head can be easily discharged. The discharge time interval of the liquid material discharged at different timings and the discharge time interval of the liquid material discharged at different timings from different nozzles of other droplet discharge heads adjacent to the predetermined discharge head, and The liquid discharged from the nozzle closest to the other droplet discharge head of the predetermined droplet discharge head and the liquid discharged from the nozzle closest to the predetermined droplet discharge head of the other droplet discharge head The discharge time interval between the liquid material can be the same that.

  Next, a droplet discharge method of the present invention is a droplet discharge method for discharging a liquid material via a plurality of nozzles from a plurality of droplet discharge heads arranged in series in a direction intersecting with a scan direction. Discharge time intervals of liquid material discharged from different nozzles of the droplet discharge head at different timings, and discharge of liquid material discharged from different nozzles of other liquid droplet discharge heads adjacent to the predetermined discharge head The time interval is the same and the liquid ejected from the nozzle closest to the other droplet ejection head of the predetermined droplet ejection head and the most predetermined droplet of the other droplet ejection head The discharge time interval with the liquid material discharged from the nozzle near the discharge head is the same.

According to the droplet discharge method of the present invention having such characteristics, the discharge time interval of the liquid material discharged from different nozzles of the predetermined droplet discharge head at different timings and other adjacent to the predetermined discharge head The liquid discharged from different nozzles of the droplet discharge head has the same discharge time interval at a different timing, and the liquid discharged from the nozzle closest to the other droplet discharge head of the predetermined droplet discharge head The discharge time interval between the body and the liquid material discharged from the nozzle closest to the predetermined droplet discharge head of the other droplet discharge head is the same.
For this reason, all the discharge intervals of liquid bodies discharged at different timings and adjacent to each other are the same. As a result, the variation in the drying speed of the liquid material is patterned. In other words, uneven stripes are not locally formed, but uneven stripes are uniformly formed. For this reason, it is possible to suppress variations in functionality.

Next, the electro-optical device of the present invention is manufactured using the droplet discharge device of the present invention or the droplet discharge method of the present invention.
According to the droplet discharge device of the present invention and the droplet discharge method of the present invention, it is possible to suppress the variation in functionality caused by the variation in the drying speed of the liquid material. Alternatively, in the electro-optical device manufactured using the droplet discharge method of the present invention, variation in functionality is suppressed.

Next, an electronic apparatus according to the present invention includes the electro-optical device according to the present invention.
In the electro-optical device of the present invention, since the variation in functionality is suppressed, the electronic device of the present invention is also suppressed in the variation in functionality.

  Hereinafter, embodiments of a droplet discharge device and method, an electro-optical device, and an electronic apparatus according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is appropriately changed in order to make each member a recognizable size.

(Droplet ejection apparatus and method)
FIG. 1 is a schematic perspective view showing the overall configuration of a droplet discharge apparatus according to an embodiment of the present invention. The droplet discharge device 1 according to this embodiment includes a droplet discharge head 100, an X direction drive shaft 4, a Y direction drive motor 3, a Y direction guide shaft 5, a control device 6, a stage 7, a cleaning mechanism unit 8, and a base 9. have.

  The droplet discharge head 100 is for discharging the functional liquid supplied from the tank 109 in which the functional liquid (liquid material) is stored through the supply pipe 107 from the nozzle. The stage 7 is for mounting the substrate W on which the functional liquid discharged from the droplet discharge device 1 is landed, and has a mechanism for fixing the substrate W at a predetermined reference position.

The X-direction drive shaft 4 is composed of a ball screw or the like, and the X-direction drive motor 2 is connected to the end portion. The X direction drive motor 2 is a stepping motor or the like, and rotates the X direction drive shaft 4 when a drive signal in the X axis direction is supplied from the control device 6. When the X direction drive shaft 4 rotates, the droplet discharge head 100 moves on the X direction drive shaft 4 in the X direction.
The Y-direction guide shaft 5 is also composed of a ball screw or the like, but is disposed on the base 9 at a predetermined position. A stage 7 is disposed on the Y-direction guide shaft 5. The stage 7 includes a Y direction drive motor 3. The Y direction drive motor 3 is a stepping motor or the like, and rotates the Y direction guide shaft 5 when a drive signal in the Y axis direction is supplied from the control device 6. When the Y direction guide shaft 5 rotates, the stage 7 moves in the Y direction.

In this way, the droplet discharge device 1 can move the droplet discharge head 100 to an arbitrary location on the substrate W by performing driving in the X-axis direction and driving in the Y-axis direction.
The control device 6 provided in the droplet discharge device 1 controls the operation of the entire droplet discharge device 1. In other words, the control device 6 supplies a signal for controlling the discharge of the functional liquid to the droplet discharge head 100 and positions the droplet discharge head 100 and the stage 7 to the X direction drive motor 2 and the Y direction drive motor 3. Supply signals to control the relationship. The cleaning mechanism unit 8 provided in the droplet discharge device 1 is a mechanism for cleaning the droplet discharge head 100. The cleaning mechanism unit 8 includes a Y-direction drive motor (not shown). By driving the drive motor, the cleaning mechanism 8 moves along the Y-direction guide shaft 5. Such movement of the cleaning mechanism 8 is also controlled by the control device 6.

FIG. 2 is a bottom view schematically showing the droplet discharge head 100 provided in the droplet discharge device 1 of the present embodiment. As shown in this figure, in this embodiment, the droplet discharge head 100 has a configuration in which two (plural) droplet discharge heads 110 and 120 are arranged in series in the X direction shown in FIG. is doing. Further, the droplet discharge head 110 (predetermined droplet discharge head) is from sub-droplet discharge heads 111 and 112 arranged in the Y direction (direction orthogonal to the direction in which the droplet discharge heads 110 and 120 are serially connected). It is configured. The droplet discharge head 120 (another droplet discharge head) is composed of sub droplet discharge heads 121 and 122 arranged in the Y direction. In each sub droplet discharge head 111, 112, 121, 122, a plurality of nozzles 130 are arranged in the Y direction.
In the present embodiment, the Y direction is the scan direction of the droplet discharge head 100.

  In addition, as shown in FIG. 2, in the droplet discharge device 1 of the present embodiment, the sub-droplet discharge heads 111 and 112 between the droplet discharge head 110 and the droplet discharge head 120 are in the Y direction. They are disposed at the same distance as the distance D2 between the sub-droplet ejection heads 121 and 122 and the distance D3 between the sub-droplet ejection heads 121 and 122. That is, D1 between the droplet discharge head 110 and the droplet discharge head 120, D2 between the sub-droplet discharge heads 111 and 112, and D3 between the sub-droplet discharge heads 121 and 122 are the same distance.

  Next, the operation (droplet discharge method) of the droplet discharge apparatus of the present embodiment configured as described above will be described with reference to the schematic diagrams of FIGS. 3 to 6 are shown from the lower surface of the droplet discharge head 100 for convenience of explanation.

  First, the control device 6 moves the droplet discharge head 100 and the stage 7 relative to each other via the X-direction drive motor 2 and the Y-direction drive motor 3, whereby a predetermined area (on the substrate W placed on the stage 7 ( The droplet discharge head 100 is aligned above the area where the functional liquid is applied. In the following description, the operation of the droplet discharge head 100 (for example, a movement operation or a functional liquid discharge operation) is performed by the control device 6 unless otherwise specified.

When the droplet discharge head 100 is aligned above a predetermined region of the substrate W in this manner, as shown in FIG. 3, the sub-droplet discharge head 111 of the droplet discharge head 110 passes through the nozzle 130. The functional liquid a <b> 1 is discharged and arranged toward the substrate W.
Thereafter, the droplet discharge head 100 is scanned in the X direction. Next, as shown in FIG. 4, the functional liquid is directed from the sub droplet discharge head 112 of the droplet discharge head 110 toward the substrate W through the nozzle 130. a2 is discharged and arranged. The functional liquid a2 ejected from the sub droplet ejection head 112 toward the substrate W is disposed next to the functional liquid a1 ejected from the sub droplet ejection head 111 toward the substrate W.
Thereafter, the droplet discharge head 100 is scanned again in the X direction. Next, as shown in FIG. 5, the functionality from the sub droplet discharge head 121 of the droplet discharge head 120 toward the substrate W through the nozzle 130. The liquid a3 is discharged and arranged. Of the functional liquid a3 ejected from the sub droplet ejection head 121 toward the substrate W, the functional liquid a31 closest to the droplet ejection head 112 is ejected from the sub droplet ejection head 112 toward the substrate W. Of the functional liquid a2, the liquid is disposed next to the functional liquid a21 closest to the droplet discharge head 121. In other words, the functional liquid ejected from the nozzle closest to the droplet ejection head 120 of the droplet ejection head 110 and the functional liquid ejected from the nozzle closest to the droplet ejection head 110 of the droplet ejection head 120 Are arranged next to each other.
Thereafter, the droplet discharge head 100 is again scanned in the X direction. Next, as shown in FIG. 6, the functionality from the sub-droplet discharge head 122 of the droplet discharge head 120 toward the substrate W through the nozzle 130. The liquid a4 is discharged and arranged. The functional liquid a4 ejected from the sub droplet ejection head 122 toward the substrate W is disposed next to the functional liquid a3 ejected from the sub droplet ejection head 121 toward the substrate W.
The functional liquid is arranged on the entire surface of the predetermined region of the substrate W by repeating the steps of FIGS.

Here, in the droplet discharge device of this embodiment, D1 between the droplet discharge head 110 and the droplet discharge head 120, D2 between the sub droplet discharge heads 111 and 112, and the sub droplet discharge heads 121 and 122. The distances D3 are the same. Therefore, by scanning the droplet discharge head 100 in the X direction at the same speed, the functional liquid a1 discharged from the nozzle 130 of the sub-droplet discharge head 111 of the droplet discharge head 110 and the sub-droplet discharge head 112. Between the functional liquid a2 ejected from the nozzle 130 and the functional liquid a3 ejected from the nozzle 130 of the sub-droplet ejection head 121 of the droplet ejection head 120 and the sub-droplet ejection head 122. The ejection time interval T2 with the functional liquid a4 ejected from the nozzle 130, and the functionality closest to the droplet ejection head 121 among the functional liquid a2 ejected from the sub droplet ejection head 112 toward the substrate W Among the functional liquid a3 discharged from the liquid a21 and the sub-droplet discharge head 121 toward the substrate W, the functional liquid closest to the droplet discharge head 112 is provided. And a discharge time interval T3 and a31 are the same.
Therefore, according to the liquid droplet ejection apparatus and method of the present embodiment, the ejection intervals of the adjacent functional liquids ejected at different timings are all the same. As a result, the variation in the drying speed of the functional liquid is patterned. That is, uneven stripes are not formed locally in the functional liquid layer applied on the predetermined region of the substrate W, but are uniformly formed. For this reason, it is possible to suppress variations in functionality.

Further, in the liquid droplet ejection apparatus of the present embodiment, the liquid droplet ejection head 110 is configured to include sub liquid droplet ejection heads 111 and 112 arranged in parallel in a direction orthogonal to the serial direction. The droplet discharge head 120 includes sub droplet discharge heads 121 and 122 arranged in parallel in a direction orthogonal to the serial direction.
For this reason, the functional liquid can be easily discharged from different nozzles of the droplet discharge head 110 at different timings by shifting the discharge timing of the sub droplet discharge heads 111 and 112. Further, the functional liquid can be easily discharged from different nozzles of the droplet discharge head 120 at different timings by shifting the discharge timing of the sub droplet discharge heads 121 and 122.

In the present embodiment, the droplet discharge head 110 is configured to include sub droplet discharge heads 111 and 112 arranged in parallel in a direction orthogonal to the serial direction. A configuration is adopted in which sub-droplet discharge heads 121 and 122 are arranged in parallel in a direction orthogonal to the serial direction.
However, the present invention is not limited to this. For example, as shown in the schematic diagram of FIG. 7, a plurality of nozzles 130 of the droplet discharge head 110 are arranged in two rows (a plurality of rows). A configuration can also be adopted. Even when such a configuration is adopted, the functional liquid can be easily discharged from different nozzles at different timings by shifting the discharge timing for each column.
Further, the distance D4 between the nozzle 130 of the droplet discharge head 110 and the nozzle 130 of the droplet discharge head 120 is arranged in the Y direction so as to be separated by the same distance as D5 and D6 between the rows of the nozzles 130. By adopting the configuration, by scanning the droplet discharge head 100 at the same speed, it is possible to easily make all the discharge intervals of the adjacent functional liquids discharged at different timings the same.

Further, as shown in the schematic diagram of FIG. 8, only nozzles formed in a single row are formed on the droplet discharge heads 110 and 120, and one nozzle formed on each droplet discharge head 110 and 120 is skipped. It is also possible to use them alternately.

In the present embodiment, the two droplet discharge heads 110 and 120 are arranged in series. However, the present invention is not limited to this, and a configuration in which more droplet discharge heads are arranged in series can also be adopted.

(Electro-optical device)
Next, a liquid crystal display device will be described as an example of an electro-optical device manufactured using the droplet discharge device and method of the present invention.
FIG. 9 is a plan view showing the overall structure of the liquid crystal display device of this embodiment. FIG. 10 is a longitudinal sectional view of the liquid crystal display device of FIG. FIG. 11 is an equivalent circuit diagram showing switching elements, signal lines and the like in a plurality of pixels arranged in a matrix constituting the image display area of the liquid crystal display device of this embodiment.

  As shown in FIGS. 9 and 10, in the liquid crystal display device 150, the TFT array substrate 10 and the counter substrate 20 are bonded together by a sealing material 52, and the liquid crystal 50 is sealed in a region partitioned by the sealing material 52. Is retained. The sealing material 52 is formed with a liquid crystal injection port 55 for injecting liquid crystal after the TFT array substrate 10 and the counter substrate 20 are bonded together at the time of manufacturing. The liquid crystal injection port 55 is sealed after the liquid crystal injection. It is sealed with a material 54.

  A peripheral part (not shown) made of a light-shielding material is formed in a region inside the sealing material 52, while a data line driving circuit 201 and a mounting terminal 202 are provided in the TFT array substrate in a region outside the sealing material 52. The scanning line driving circuit 204 is formed along two sides adjacent to the one side. On the remaining side of the TFT array substrate 10, a plurality of wirings 205 are provided for connecting between the scanning line driving circuits 204 provided on both sides of the image display area.

  As shown in FIG. 11, a pixel electrode 70 and a TFT element 30 that is a switching element for controlling the pixel electrode 70 are formed on a plurality of pixels arranged in a matrix that forms an image display area. The data line 6 a to which the image signal is supplied is electrically connected to the source of the TFT element 30. The image signals S1, S2,..., Sn supplied to the data line 6a are supplied line-sequentially in this order, or are supplied for each group to a plurality of adjacent data lines 6a.

  In addition, the scanning line 3a is electrically connected to the gate of the TFT element 30, and scanning signals G1, G2,..., Gm are applied to the plurality of scanning lines 3a in a pulse-sequential manner at predetermined timing. The The pixel electrode 70 is electrically connected to the drain of the TFT element 30. By turning on the TFT element 30 for a certain period, the image signals S1, S2,. Sn is written at a predetermined timing.

Image signals S1, S2,..., Sn written at a predetermined level on the liquid crystal via the pixel electrode 70 are held for a certain period with the common electrode described later. This liquid crystal modulates light by changing the orientation and order of the molecular assembly according to the applied voltage level, thereby enabling gradation display.
In order to prevent the held image signal from leaking, a storage capacitor 17 is added in parallel with the liquid crystal capacitor formed between the pixel electrode 70 and the common electrode.

  Returning to FIG. 9 and FIG. 10, a pixel electrode 70 and an alignment film 40 for controlling the alignment of liquid crystal molecules in the liquid crystal layer 50 when no voltage is applied are formed on the surface of the TFT array substrate 10 on the liquid crystal layer 50 side. Is formed. A polarizing plate that transmits only predetermined polarized light and, if necessary, a dustproof plate are disposed on the surface of the TFT array substrate 10 opposite to the liquid crystal layer 50 side.

  On the other hand, on the surface of the counter substrate 20 on the liquid crystal layer 50 side, a common electrode 21 made of a transparent electrode material such as ITO and an alignment film 60 for controlling the alignment of liquid crystal molecules in the liquid crystal layer 50 when no voltage is applied. And are formed. A polarizing plate that transmits only predetermined polarized light and, if necessary, a dustproof plate are disposed on the surface of the TFT array substrate 10 opposite to the liquid crystal layer 50 side.

  In the liquid crystal display device 150 of this embodiment, the alignment films 40 and 50 are formed by the droplet discharge device and method of the present invention. According to the droplet discharge device and method of the present invention, it is possible to suppress variations in functionality, and thus the liquid crystal display device 150 of this embodiment includes the alignment films 40 and 50 having uniform functionality. is doing. Therefore, variation in functionality is suppressed, and stable functionality can be exhibited.

  In the present embodiment, a liquid crystal display device has been described as an example of an electro-optical device manufactured using the droplet discharge device and method of the present invention. However, the present invention is not limited to this, and the present invention is not limited thereto. The droplet discharge device and method of the invention can also be applied when forming a metal wiring or forming an organic functional layer of an organic EL display device.

(Electronics)
Next, specific examples of an electronic apparatus including the electro-optical device according to the invention will be described.
FIG. 12 is a perspective view showing an example of a mobile phone. In FIG. 12, reference numeral 600 denotes a mobile phone body, and reference numeral 601 denotes a liquid crystal display unit including the liquid crystal display device of the above embodiment.
Since the liquid crystal display device of the above embodiment has a suppressed variation in functionality, the liquid crystal display device can exhibit stable functionality.

  Note that the above-described liquid crystal display device can be applied to various electronic devices other than mobile phones. For example, LCD projectors, multimedia-compatible personal computers (PCs) and engineering workstations (EWS), pagers, word processors, televisions, viewfinder type or monitor direct view type video tape recorders, electronic notebooks, electronic desk calculators, car navigation systems The present invention can be applied to electronic devices such as a device, a POS terminal, and a device provided with a touch panel.

  The preferred embodiments of the liquid droplet ejection apparatus and method, the electro-optical device, and the electronic apparatus according to the present invention have been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to such examples. . Various shapes, combinations, and the like of the constituent members shown in the above-described examples are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

1 is a schematic perspective view showing an overall configuration of a droplet discharge device according to an embodiment of the present invention. It is the bottom view which showed typically the droplet discharge head with which the droplet discharge apparatus which concerns on embodiment of this invention is provided. It is explanatory drawing for demonstrating operation | movement of the droplet discharge apparatus which concerns on embodiment of this invention. It is explanatory drawing for demonstrating operation | movement of the droplet discharge apparatus which concerns on embodiment of this invention. It is explanatory drawing for demonstrating operation | movement of the droplet discharge apparatus which concerns on embodiment of this invention. It is explanatory drawing for demonstrating operation | movement of the droplet discharge apparatus which concerns on embodiment of this invention. It is a modification of the droplet discharge head with which the droplet discharge apparatus which concerns on embodiment of this invention is provided. It is a modification of the droplet discharge head with which the droplet discharge apparatus which concerns on embodiment of this invention is provided. It is a top view which shows the whole structure of the liquid crystal display device which concerns on embodiment of this invention. It is sectional drawing of the liquid crystal display device which concerns on embodiment of this invention. FIG. 3 is an equivalent circuit diagram of an image display area of the liquid crystal display device according to the embodiment of the present invention. It is the perspective view which showed the specific example of the electronic device which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Droplet discharge device, 100, 110, 120 ... Droplet discharge head, 111, 112, 121, 122 ... Sub-droplet discharge head, 150 ... Liquid crystal display device (electro-optical device), 600 ... Mobile phone body (electronic equipment)

Claims (8)

A droplet discharge apparatus comprising a plurality of droplet discharge heads that discharge a liquid material via a plurality of nozzles arranged in series in a direction intersecting a scan direction,
Discharge time intervals of liquid material discharged at different timings from different nozzles of a predetermined droplet discharge head, and liquid materials discharged at different timings from different nozzles of other liquid droplet discharge heads adjacent to the predetermined discharge head The discharge time interval of the liquid droplets ejected from the nozzle closest to the other droplet ejection head of the predetermined droplet ejection head and the most predetermined of the other droplet ejection heads. A droplet discharge apparatus having the same discharge time interval with the liquid discharged from the nozzle near the droplet discharge head. 2. The droplet discharge device according to claim 1, wherein each of the droplet discharge heads includes a plurality of sub-droplet discharge heads arranged in parallel in a direction orthogonal to a serial direction. . The predetermined liquid droplet ejection head and the other liquid droplet ejection head are disposed in the direction perpendicular to the serial direction and spaced apart from each other by the same distance. The droplet discharge device according to claim 2. 2. The droplet discharge device according to claim 1, wherein a plurality of the nozzles of each of the droplet discharge heads are formed across a plurality of rows in a direction orthogonal to a serial direction. The nozzles of the predetermined liquid droplet ejection head and the nozzles of the other liquid droplet ejection heads are arranged in the direction orthogonal to the series direction and spaced apart from each other by the same distance. The droplet discharge device according to claim 4. A droplet discharge method for discharging a liquid material via a plurality of nozzles from a plurality of droplet discharge heads arranged in series in a direction intersecting a scan direction,
Discharge time intervals of liquid material discharged at different timings from different nozzles of a predetermined droplet discharge head, and liquid materials discharged at different timings from different nozzles of other liquid droplet discharge heads adjacent to the predetermined discharge head And the liquid material ejected from the nozzle closest to the other droplet ejection head of the predetermined droplet ejection head and the most predetermined predetermined of the other droplet ejection head. A droplet discharge method characterized by having the same discharge time interval with the liquid discharged from the nozzle near the droplet discharge head. An electro-optical device manufactured using the droplet discharge device according to claim 1 or the droplet discharge method according to claim 6. An electronic apparatus comprising the electro-optical device according to claim 7.

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