JP2007065690A - Method of forming sectioning member, substrate, liquid crystal display device and method of manufacturing the same, and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of forming a sectioning member that can shorten the time needed to form the sectioning member such as a seal material and a black mask on a substrate and can easily form the sectioning member such as the seal material and black mask having a highly fine pattern at low cost; and also to provide the substrate, a liquid crystal display device and a method of manufacturing the same, and electronic equipment. <P>SOLUTION: The method forms the seal material 108 as the sectioning member for sectioning a specified area on the substrate. The method of forming the sectioning member is characterized in that: one of a head jetting a material constituting the seal material 108 onto an area (seal material formation area) E, where the seal material 108 set in a substrate formation area 13 in a mother substrate 12 is formed, and the mother substrate 12 is scanned relatively to the other; and the material of the seal material 108 jetted from the head is landed in the seal material formation area E on the mother substrate 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a partition member forming method, a substrate, a liquid crystal display device and a manufacturing method thereof, and an electronic apparatus. More specifically, when a partition member such as a sealing material or a black mask is formed on a substrate, the time required for the formation can be shortened, and the partition member such as a high-definition pattern sealing material or a black mask is formed. The present invention relates to a partition member forming method, a substrate, a liquid crystal display device and a manufacturing method thereof, and an electronic device.

  In recent years, with the development of personal computers, in particular with the development of portable personal computers, the demand for liquid crystal display devices has increased rapidly. This liquid crystal display device is widely used in notebook computers, desktop computers, in-vehicle navigation systems, electronic still cameras, game machines, projectors, mobile phones and the like.

  Such a liquid crystal display device usually forms a cell by adhering a pair of substrates including a shared electrode substrate provided with a shared electrode and a pixel electrode substrate provided with a pixel electrode through a sealing material. The liquid crystal is manufactured in the cell, and the color filter is provided to add color to each pixel of the device.

  Conventionally, a sealing material for bonding a pair of substrates is formed by printing a sealing material made of various resins such as a thermosetting resin or an ultraviolet curable resin on the surface of one substrate by a screen printing method. This screen printing method is a method in which a printing plate having a groove corresponding to the shape of the sealing material is used, the sealing material is filled in the groove portion of the printing plate, and the sealing material is transferred onto the substrate.

  When the sealing material is formed by using such a screen printing method, it is inevitable that the screen mask surface comes into contact with the substrate surface, so that there is a high possibility of transferring the dirt adhered on the screen mask to the substrate surface. When used as a liquid crystal display device, there is a problem in that the display image quality is deteriorated due to the disorder of the alignment of the liquid crystal, and the reliability is deteriorated. In addition to the problem of contamination, the screen mask comes into contact with the substrate surface that has been subjected to the alignment treatment, so that there is a high possibility that the alignment surface will be disturbed, and the deterioration of display image quality is promoted.

  In order to solve these problems, a sealant is applied to at least one of the inner surfaces of the pair of substrates by using a dispenser-type discharge device, and the pair of substrates is bonded to each other. A method for manufacturing a dispenser type liquid crystal display device is disclosed (Japanese Patent Laid-Open No. 1-202228). This dispenser-type manufacturing method can manufacture a liquid crystal display device in a non-contact state with respect to the alignment processing surface, so that the alignment processing surface is not contaminated and may be affected by contact with a screen mask or the like. Therefore, it is an excellent method capable of producing a liquid crystal display device having a stable alignment state and a high display image quality.

  However, in this dispenser type manufacturing method, as shown in FIG. 22, a syringe-like nozzle 27 discharges the sealing material 108 in a manner of one stroke while moving back and forth and right and left on the substrate 107, and seals of a predetermined shape. The materials 108 must be formed one by one, and there is a problem that a long cycle time is required to form the plurality of sealing materials 108 on the mother substrate. In order to shorten the cycle time, it is conceivable to form a plurality of sealing materials 108 at a time using a plurality of nozzles 27. However, by controlling the plurality of nozzles 27 at the same time, a plurality of seals with a fine pattern are used. There is a problem that it is extremely difficult to form the material 108.

  Moreover, in the formation of a black mask used in a liquid crystal display device, a pattern is usually formed by using a photolithography method or the like, but this process is performed by repeating exposure, development, etching, etc. There is a problem in that raw materials are wasted and time is required.

  The present invention has been made in view of the above-described problems. In the case where a partition member such as a sealing material or a black mask is formed on a substrate, the time required for the formation can be shortened, and high definition is achieved. PROBLEM TO BE SOLVED: To provide a partition member forming method, a substrate, a liquid crystal display device and a manufacturing method thereof, and an electronic apparatus capable of forming a partition member such as a sealing material and a black mask in a simple pattern at low cost. And

  In order to solve the above problems, a method for forming a partition member according to the present invention is a method for forming a partition member for partitioning a predetermined region of a substrate, and a head for discharging a material constituting the partition member; The method includes a step of scanning one of the substrates with respect to the other, and a step of landing a material discharged from the head on a partition member forming region on the substrate.

  With such a configuration, when forming a partition member such as a sealing material or a black mask on a substrate, it is possible to reduce the time required for forming the sealing material, a high-definition pattern sealing material, black A partition member such as a mask can be formed easily and at low cost.

  Further, it is preferable that the partition member is formed in a predetermined shape, and the material discharged first after the head scanning starts is landed on a position outside the partition member formation region.

  In addition, the method for forming a partition member of the present invention further includes a step of forming a protrusion connected to the partition member outside the partition member forming region, and the material discharged first after the start of the head scan is It is preferable to land on the formation region of the protruding portion.

  By configuring in this way, a non-uniform amount of material that is first ejected from the head after the start of scanning is landed on the outside of the partition member forming region and the protruding portion, and with a stable landing amount in the partition member forming region, A uniform and high-definition partition member can be formed.

  Further, the partition member forming method of the present invention is characterized in that the total amount of the material landed is controlled so that the thickness of the protruding portion and the thickness of the partition member are substantially the same. It is preferable.

  In the partition member forming method of the present invention, the number of landings per unit area in the corner of the partition member forming region is preferably smaller than the number of landings per unit area in the partition member forming region other than the corner. .

  In the partition member forming method of the present invention, it is preferable that the discharge amount of the material per landing at the corner of the partition member forming region is smaller than that in the partition member forming region other than the corner.

  With this configuration, the amount of landing of the material at the corner can be adjusted, and the inconvenience that excess material protrudes inside the partition member (for example, the pixel region) when the pair of substrates is bonded can be solved. .

  Further, the substrate of the present invention is a substrate provided with a partition member that partitions a predetermined region, and the partition member is formed by any one of the partition member forming methods described above. .

  By comprising in this way, the advantage demonstrated with the formation method of the above-mentioned division member can be comprised.

  Further, the substrate of the present invention is a substrate provided with a partition member that partitions the predetermined region in the partition member forming region, and has a protrusion connected to the partition member outside the partition member forming region, The partition member and the protruding portion are formed of the same material.

  In this case, it is preferable that the thickness of the protruding portion is substantially the same as the thickness of the partition member.

  With this configuration, when used in a liquid crystal display device or the like, a display image can be made high-definition and stable.

  Examples of the partition member used for the substrate of the present invention include a sealing material and a black mask.

  The liquid crystal display device of the present invention is a liquid crystal display device in which a pair of substrates are opposed to each other with a sealing material as a partition member interposed therebetween, and liquid crystal is sealed in a predetermined region partitioned by the sealing material, The sealing material is formed by the method described above.

  By comprising in this way, the advantage demonstrated with the formation method of the above-mentioned division member can be comprised.

  The liquid crystal display device of the present invention is a liquid crystal display device in which a pair of substrates are opposed to each other with a sealing material interposed therebetween, and liquid crystal is sealed in a predetermined region defined by the sealing material, and the sealing material And a projecting portion connected to the sealing material outside the forming region, and the sealing material and the projecting portion are formed of the same material.

  In this case, it is preferable that the thickness of the protruding portion and the thickness of the sealing material are substantially the same.

  With this configuration, the display image can be made high-definition and stable.

  The liquid crystal display device of the present invention is a liquid crystal display device including a plurality of dots and a black mask as a partition member formed so as to surround the dots, and the black mask is formed of the partition member described above. It is formed by a method.

  By comprising in this way, the advantage demonstrated with the formation method of the above-mentioned division member can be comprised.

  Further, the liquid crystal display device of the present invention is a liquid crystal display device including a plurality of dots and a black mask formed so as to surround the dots, and is connected to the black mask outside the black mask formation region. The black mask and the protrusion are formed of the same material.

  In this case, it is preferable that the thickness of the protruding portion and the thickness of the black mask are substantially the same.

  With this configuration, the display image can be made high-definition and stable.

  In addition, an electronic apparatus according to the present invention includes the above-described liquid crystal display device.

  With this configuration, the display image can be made high-definition and stable and inexpensive.

  The method for manufacturing a liquid crystal display device according to the present invention is a method for manufacturing a liquid crystal display device in which a pair of substrates are opposed to each other with a sealing material interposed therebetween, and liquid crystal is sealed in a predetermined region defined by the sealing material. A step of scanning one of the head and the substrate for discharging the material constituting the sealing material with respect to the other, and the material discharged from the head in a sealing material forming region on the substrate A step of landing.

  With such a configuration, when a sealing material is formed on a substrate, the time required for the formation can be shortened, and a liquid crystal display device including a sealing material with a high-definition pattern can be simply and easily formed. It can be manufactured at low cost.

  In this case, it is preferable that the sealing material is formed in a predetermined shape, and the material discharged first after the start of the head scanning lands on an outer position of the sealing material forming region. .

  In addition, the method further includes a step of forming a protruding portion connected to the sealing material outside the sealing material forming region, and the material discharged first after the start of the head scanning lands on the forming region of the protruding portion. It is preferable that it is characterized by.

  By configuring in this way, a non-uniform amount of material that is discharged first from the head after the start of scanning is landed on the outside of the seal material forming region and the protruding portion, and with a stable landing amount in the seal material forming region, A liquid crystal display device including a uniform and high-definition sealing material can be manufactured.

  Further, it is preferable that the total amount of the material landed is controlled so that the thickness of the protruding portion and the thickness of the sealing material are substantially the same.

  In this case, it is preferable that the number of landings per unit area in the corner of the sealing material forming region is smaller than the number of landings per unit area in the partition member forming region other than the corner.

  Further, it is preferable that the discharge amount of the material per landing at the corner of the sealing material forming region is smaller than that in the partition member forming region other than the corner.

  By configuring in this way, the amount of landing of the material at the corner is adjusted, and the liquid crystal display device which has solved the inconvenience that excess material protrudes inside the sealing material (for example, the pixel region) when the pair of substrates is bonded. Can be manufactured.

  The method for manufacturing a liquid crystal display device according to the present invention is a method for manufacturing a liquid crystal display device comprising a plurality of dots and a black mask formed so as to surround the dots on a substrate, wherein the black mask is A step of scanning one of the head for discharging the constituent material and the substrate with respect to the other, and the material discharged from the head so as to surround the dots in the black mask formation region on the substrate Including a step of landing on the surface.

  In this case, it is preferable that the black mask is formed in a predetermined shape, and the material discharged first after the head scanning starts is landed on an outer position of the black mask formation region. .

  Further, the method further includes a step of forming a protrusion connected to the black mask outside the black mask formation region, and the material discharged first after the start of the head scanning lands on the formation region of the protrusion. It is preferable that it is characterized by.

  By configuring in this way, a non-uniform amount of material that is first ejected from the head after the start of scanning is landed on the outside of the black mask formation region and the protruding portion, and with a stable landing amount in the black mask formation region, A liquid crystal display device provided with a uniform and high-definition black mask can be manufactured.

  Further, it is preferable that the total amount of the material landed is controlled so that the thickness of the protruding portion and the thickness of the black mask are substantially the same.

  In this case, it is preferable that the number of landings per unit area in the corner of the black mask forming region is smaller than the number of landings per unit area in the black mask forming region other than the corner.

  Further, it is preferable that the discharge amount of the material per landing at the corner of the black mask forming region is smaller than that in the black mask forming region other than the corner.

  With this configuration, the amount of landing of the material at the corner is adjusted, and the liquid crystal display device that eliminates the inconvenience of excess material protruding inside the black mask (for example, the pixel region) when the pair of substrates is bonded together Can be manufactured.

  Hereinafter, an embodiment of a liquid crystal display device of the present invention will be described in detail with reference to the drawings. Among them, a method for forming a partition member of the present invention and an embodiment of a substrate are also described. A specific description will also be given.

  FIG. 1 is an exploded perspective view schematically showing an embodiment of a liquid crystal display device of the present invention, and FIG. 2 is a cross-sectional view taken along line XX of FIG. Note that the liquid crystal display device illustrated in FIGS. 1 and 2 is a transflective liquid crystal display device that performs full-color display using a passive matrix method.

  As shown in FIG. 1, in a liquid crystal display device 101, liquid crystal driving ICs 103a and 103b as semiconductor chips are mounted on a liquid crystal panel 102, and a flexible printed circuit board (FPC) 104 as a wiring connection element is mounted on the liquid crystal panel 102. In addition, the light source 106 is provided as a backlight on the back side of the liquid crystal panel 102.

  As shown in FIG. 2, the first substrate 107a and the second substrate 107b constituting the liquid crystal panel 102 are disposed opposite to each other while enclosing and holding the liquid crystal L. Further, the first substrate 107a has a reflective film 112 on the liquid crystal L side for reflecting incident light from the second substrate 107b side. The reflective film 112 is formed of, for example, a light reflective material made of aluminum, silver, an alloy containing at least one of aluminum and silver, or a laminated film of titanium, titanium nitride, molybdenum, tantalum, or the like.

  In the reflective film 112, an opening 105 that transmits light from the light source 106 installed on the back surface is formed at a predetermined location, and a colored layer 121 for color display is formed on the reflective film 112. . The colored layer 121 is formed of a plurality of color dots having different colors, that is, R (red), G (green), and B (blue). Examples of the material of the colored layer 121 include a photosensitive resin such as an acrylic resin.

  Note that although R (red), G (green), and B (blue) have been described as examples of the color of the colored layer 121, the present invention is not limited to this, and any one of cyan, magenta, and yellow is used. It may be.

  Further, examples of the arrangement pattern of the color dots forming the above-described colored layer 121 include patterns such as a stripe arrangement, a delta arrangement, and a mosaic arrangement as shown in FIG.

  As shown in FIG. 4A, the first substrate 107a and the second substrate 107b of the liquid crystal display device of the present invention can be manufactured on a mother substrate 12 having a large area. Specifically, first, a pattern for one of the substrates 107 a and 107 b is formed on each surface of the substrate formation region 13 set in the mother substrate 12. Further, by forming grooves for cutting around the substrate forming regions 13 and further cutting the mother substrate 12 along these grooves, the individual substrates 107a and 107b can be formed. The cutting may be after the common electrode substrate is bonded to form a pair of substrates. As shown in FIG. 4B, the size of the substrates 107a and 107b of the liquid crystal display device of the present invention is, for example, 1.8 inches diagonal. Further, the size of the color dots 125 forming the colored layer is, for example, 30 μm × 100 μm. The interval between the color dots 125, that is, the so-called element pitch is, for example, 75 μm.

  When the liquid crystal display device of the present invention performs full-color display, for example, one pixel (pixel) is formed with three color dots of R (red), G (green), and B (blue) as one unit. A full color display can be performed by selectively reflecting and passing light through one or a combination of R (red), G (green), and B (blue) in one pixel.

  As shown in FIG. 2, the first substrate 107a has a plate-like base material 111a formed of transparent glass, transparent plastic, or the like. As described above, the reflective film 112 is formed on the inner surface (upper surface in FIG. 2) of the base material 111a, and the colored layer 121 and the black mask for preventing the colored layer 121 from becoming clouded thereon. 118 is formed, an insulating film 113 is stacked thereon, a first electrode 114a is formed in a stripe shape (see FIG. 1) when viewed from the direction of arrow A, and an alignment film 116a is further formed thereon. The A polarizing plate 117a is attached to the outer surface (the lower surface in FIG. 2) of the substrate 111a by sticking or the like.

  In FIG. 1, in order to show the arrangement of the first electrodes 114a in an easy-to-understand manner, the stripe interval is drawn much wider than the actual, and thus the number of the first electrodes 114a is drawn less. A larger number of first electrodes 114a are formed on the substrate 111a.

  As shown in FIG. 2, the second substrate 107b has a plate-like substrate 111b formed of transparent glass, transparent plastic, or the like. On the inner surface (the lower surface in FIG. 2) of the base material 111b, the second electrode 114b is formed in a stripe shape (see FIG. 1) as viewed from the direction of the arrow A in the direction orthogonal to the first electrode 114a. An alignment film 116b is formed thereon. A polarizing plate 117b is attached to the outer surface (upper surface in FIG. 2) of the substrate 111b by sticking or the like.

  The first electrode 114a and the second electrode 114b are made of, for example, ITO (Indium Tin Oxide), which is a transparent conductive material. The alignment films 116a and 116b are formed by depositing a polyimide resin or the like in a uniform film shape. When these alignment films 116a and 116b are subjected to a rubbing process, the initial alignment of the liquid crystal L on the surfaces of the first substrate 107a and the second substrate 107b is determined.

  The substrates 107a and 107b on which the alignment films 116a and 116b are rubbed are bonded by a sealant 108, and liquid crystal L is injected and sealed to form the liquid crystal panel 102. The substrate can be bonded in the state of the mother substrate (see FIG. 4A), and the mother substrate (see FIG. 4A) can be cut after bonding.

  As shown in FIG. 2, the liquid crystal panel 102 has a pair of substrates 107a and 107b with a frame-shaped sealing material 108 interposed therebetween so that the pair of substrates 107a and 107b face each other at a constant interval. The liquid crystal L is sealed in a predetermined space defined by the inner surface and the opposing surfaces of the pair of substrates 107a and 107b. The sealing material is preferably formed in the state of the mother substrate 12 (see FIG. 4) in order to increase productivity.

  FIG. 5 is an explanatory view schematically showing the mother substrate 12 used in one embodiment of the liquid crystal display device of the present invention. The sealing material 108 scans an ink jet head (not shown) by an ink jet method on a region (sealing material forming region) E that is set in the substrate forming region 13 in the mother substrate 12 and forms a sealing material. It is formed by ejecting ink droplets from an ink jet head (not shown) and landing on the material forming region E. The sealing material 108 usually has an opening 110 for enclosing a liquid crystal after bonding a pair of substrates. In FIG. 5, for convenience of explanation, the sealing material forming region E before landing ink droplets and the sealing material 108 formed after landing ink droplets are shown in a mixed state.

  As described above, when the sealing material 108 is formed on the sealing material forming region E set in the plurality of substrate forming regions 13 existing on the mother substrate 12, the material of the sealing material is transferred from the inkjet head (not shown) to the ink. By discharging and landing as droplets, it is possible to shorten the time required for formation, and it is possible to form a sealing material 108 with a high-definition pattern and to effectively prevent the occurrence of contamination on the alignment processing surface. can do.

  As described above, when the sealing material 108 having a size of 50 mm × 70 mm is formed by using the ink jet method, it is preferable that the first ink droplet is landed on a region outside the sealing material formation region E. For example, the sealing material It is preferable to land from a landing point P that is 100 μm or more away from the formation region, and it is more preferable to land from a place that is 300 μm or more away. The amount of ink droplets ejected from an inkjet head (not shown) (landing amount) tends to be unstable at the start of printing, and the amount of ink discharged first from the inkjet head (not shown) is uneven. Thus, a uniform and high-definition sealing material 108 can be formed with a stable landing amount in the sealing material formation region E by landing an ink droplet on the region outside the sealing material formation region E.

  Further, the first ink droplet may be ejected and landed on one or more projecting portions (projecting portion forming regions) W connected to the sealing material 108 from an ink jet head (not shown).

  Ink droplets ejected from an ink jet head (not shown) tend to collect at the corners Q of the sealing material formation region E. Thus, the ink droplets are collected in the regions outside the sealing material formation region E and the protruding portions. By landing on the W, after the ink droplets have landed, the ink is prevented from being stored unnecessarily at the corner Q of the seal material forming region E where the ink is likely to be stored unnecessarily. It is possible to eliminate the inconvenience that it protrudes inside 108 (for example, the pixel region R).

  Furthermore, the amount of ink droplets (landing amount) at the corner Q of the sealing material forming region E is reduced by reducing the number of landings per unit time with respect to the amount of landing at the sealing material forming region E other than the corner Q. By reducing the ejection amount of ink droplets per landing, the landing amount landing on the corner Q of the sealing material forming region E is substantially the same as the landing amount of the sealing material forming region E other than the corner Q. Further, it is preferable to control the total amount. For example, the relationship between the scanning position (μm) of the inkjet head and the number of landings per unit time (times / sec) can be shown in the graph of FIG. The ink jet head starts to eject ink droplets from the outside of the sealing material forming region E or above the protruding portion forming region W, and normally ejects at 13000 times / sec to 15000 times / sec. The number of landings is gradually reduced from 50 μm before the position corresponding to the part Q, and the number of landings at the corner Q is minimized (6500 times / sec to 7500 times / sec). Next, at the position corresponding to the sealing material formation region E, the number of times of regular landing is 13000 times / sec to 15000 times / sec, and the number of times of landing is gradually reduced from 50 μm before the position corresponding to the next corner Q, Minimize the number of landings at corner Q. Further, the relationship between the scanning position (μm) of the inkjet head and the ejection amount (pl / landing) of ink droplets per landing can be shown by the graph in FIG. As in FIG. 6A, normally, ink droplets are ejected at 6 pl / landing to 8 pl / landing, and the landing amount is gradually reduced from 50 μm before the position of the corner Q of the sealant formation region E. Minimize (3 pl / landing to 4 pl / landing) in part Q. Next, a steady discharge amount of 6 pl / landing to 8 pl / landing is set at the position of the sealing material forming region E, the discharge amount is gradually decreased from 50 μm before the next corner portion, and the discharge amount is reduced at the corner portion Q. Minimize.

  For example, as shown in FIG. 7A, the sealing material 108 has a protruding end portion S in which the liquid crystal sealing opening 110 protrudes further outward than the protruding portion W outside the corner Q. It is preferable to form as follows. By forming in this way, liquid crystal injection and the opening 110 can be easily sealed.

  Further, as shown in FIG. 7B, the opening 110 of the sealing material 108 may be formed at an intermediate position in the scanning direction of the inkjet head. By forming in this way, liquid crystal can be injected and the opening 110 can be sealed without being affected by the protrusion W formed outside the sealant 108.

  Further, as shown in FIG. 7C, the shape of the sealing material 108 may be landed on the outer region T from the sealing material forming region E (see FIG. 5) in the scanning direction of the inkjet head. .

  Further, as shown in FIG. 7D, the sealing material 108 may be one in which the opening 110 is not present.

  As the sealing material 108 used in the present invention, a material containing a thermosetting resin or a photo-curable resin is preferable because it can be cured in a short time, thereby improving production efficiency.

  The viscosity is preferably 50 cp or less, and more preferably 10 cp or less. The sealing material 108 may include a gap material that keeps the thickness between the substrates constant. In that case, the size of the gap material is preferably 3 to 10 μm in diameter.

  FIG. 8 shows one form of ink jet means for forming the sealing material 108. The ink jet means 16 discharges and adheres the sealing material 108 to the sealing material forming region E in the mother substrate 12 as ink droplets of a material of the sealing material 108, for example, a thermosetting resin or a photocurable resin. (See FIG. 5).

  The ink jet means 16 includes a head unit 26 having a print head 22a in which one or more ink jet heads 22 are arranged at predetermined adjacent intervals, a head position control means 17 for controlling the position of the print head 22a, and the mother board 12 Substrate position control means 18 for controlling the position, main scanning drive means 19 for moving the inkjet head 22 relative to the mother substrate 12, and sub-scanning drive means for moving the print head 22a relative to the mother substrate 12 in a sub-scanning manner. 21, a substrate supply device 23 for supplying the mother substrate 12 to a predetermined working position in the ink jet means 16, and a control device 24 for controlling the ink jet means 16 in general.

  The head position control unit 17, the substrate position control unit 18, the main scanning driving unit 19, and the sub scanning driving unit 21 are installed on the base 9. Each of these devices is covered with a cover 14 as necessary.

  As illustrated in FIG. 9, the inkjet head 22 includes, for example, a nozzle row 28 formed by arranging a plurality of nozzles 27 in a row. The number of nozzles 27 is, for example, 180, the hole diameter of the nozzles 27 is, for example, 28 μm, and the nozzle pitch between the nozzles 27 is, for example, 141 μm. 4A and 4B, the head scanning direction (main scanning direction) X and the sub-scanning direction Y orthogonal to the substrates 107a and 107b and the mother substrate 12 are configured as shown in FIG.

  As shown in FIG. 10, by providing two nozzle rows 28 along the head scanning direction X (the arrangement pitch of the nozzles 27 is 141 μm), the sealing material forming region E is formed by two nozzles 27 placed on the same main scanning line. The sealing material may be supplied to (see FIG. 5).

  In addition, as shown in FIG. 11, the nozzle rows 28 may be provided in a zigzag pattern in two rows along the head scanning direction X (the arrangement pitch of the nozzles 27 is 141 μm, but the substantial pitch in the main scanning line) Is half that of 70.5 μm).

  Further, as shown in FIG. 12, a plurality of staggered two rows (two pairs of staggered rows in FIG. 12) may be provided along the head scanning direction X (nozzle 27). The arrangement pitch of 141 is 141 μm, but the substantial pitch in the main scanning line is half that of 70.5 μm).

  Further, as shown in FIG. 13, the nozzle rows 28 may be provided by shifting the nozzle rows 28 by 1/3 pitch in the head scanning direction X (the arrangement pitch of the nozzles 27 is 141 μm, but in the main scanning line). The actual pitch is one third of that, 47 μm).

  The inkjet head 22 is configured such that the nozzle row 28 is positioned in a direction perpendicular to the head scanning direction (may be provided with an inclination of a predetermined angle (θ)), and in the head scanning direction X. During the parallel movement, the sealing material is selectively ejected from the plurality of nozzles 27 to adhere the sealing material to the sealing material formation region E (see FIG. 5) in the mother substrate 12 (see FIG. 5). . Further, the ink jet head 22 can move the main scanning position by the ink jet head 22 at a predetermined interval by moving in parallel in the sub-scanning direction Y by a predetermined distance.

  The inkjet head 22 has, for example, an internal structure shown in FIG. Specifically, the inkjet head 22 includes, for example, a stainless steel nozzle plate 29, a diaphragm 31 opposed to the nozzle plate 29, and a plurality of partition members 32 that join them together. A plurality of ink chambers 33 and liquid reservoirs 34 are formed between the nozzle plate 29 and the vibration plate 31 by the partition member 32. The plurality of ink chambers 33 and the liquid reservoir 34 communicate with each other through a passage 38.

  An ink supply hole 36 is formed at an appropriate position of the vibration plate 31, and an ink supply device 37 is connected to the ink supply hole 36. The ink supply device 37 supplies the sealing material M to the ink supply hole 36. The supplied sealing material M is filled into the liquid reservoir 34 and further filled into the ink chamber 33 through the passage 38.

  The nozzle plate 29 is provided with a nozzle 27 for ejecting the sealing material M from the ink chamber 33 in the form of a jet. An ink pressurizing member 39 is attached to the back surface of the vibration plate 31 on which the ink chamber 33 is formed so as to correspond to the ink chamber 33. As shown in FIG. 14B, the ink pressurizing body 39 includes a piezoelectric element 41 and a pair of electrodes 42a and 42b that sandwich the piezoelectric element 41. The piezoelectric element 41 is bent and deformed so as to protrude outwardly as indicated by an arrow C by energization of the electrodes 42a and 42b, thereby increasing the volume of the ink chamber 33. Then, the sealing material M corresponding to the increased volume flows into the ink chamber 33 from the liquid reservoir 34 through the passage 38.

  Next, when energization to the piezoelectric element 41 is released, both the piezoelectric element 41 and the diaphragm 31 return to their original shapes. As a result, the ink chamber 33 also returns to its original volume, so that the pressure of the sealing material M inside the ink chamber 33 rises, and the sealing material M becomes ink from the nozzle 27 toward the mother substrate 12 (see FIG. 5). A droplet 8 is ejected. In addition, an ink repellent layer 43 made of, for example, a Ni-tetrafluoroethylene eutectoid plating layer is provided on the periphery of the nozzle 27 in order to prevent the flying of the ink droplet 8 and the clogging of the nozzle 27. Yes.

  In FIG. 15, the head position control means 17 includes an α motor 44 that rotates the print head 22a in-plane, a β motor 46 that swings and rotates the print head 22a about an axis parallel to the sub-scanning direction Y, and the print head 22a. Has a γ motor 47 that swings and rotates around an axis parallel to the head scanning direction, and a saddle motor 48 that translates the print head 22a in the vertical direction.

  As shown in FIG. 15, the substrate position control means 18 shown in FIG. 8 includes a table 49 on which the mother substrate 12 is placed, and a θ motor 51 that rotates the table 49 in-plane as indicated by an arrow θ. Further, as shown in FIG. 15, the main scanning driving means 19 shown in FIG. 8 has a guide rail 52 extending in the head scanning direction X and a slider 53 incorporating a linear motor driven by pulses. The slider 53 translates in the head scanning direction along the guide rail 52 when the built-in linear motor operates.

  Further, as shown in FIG. 15, the sub-scan driving means 21 shown in FIG. 8 has a guide rail 54 extending in the sub-scanning direction Y and a slider 56 incorporating a pulse-driven linear motor. The slider 56 translates in the sub-scanning direction Y along the guide rail 54 when the built-in linear motor operates.

  The linear motor that is pulse-driven in the slider 53 and the slider 56 can finely control the rotation angle of the output shaft by the pulse signal supplied to the motor. Therefore, the head scanning of the inkjet head 22 supported by the slider 53 is performed. The position in the direction X, the position in the sub-scanning direction Y of the table 49, etc. can be controlled with high definition.

  Note that the position control of the print head 22a and the table 49 is not limited to position control using a pulse motor, but may be feedback control using a servo motor or any other control method.

  The substrate supply unit 23 illustrated in FIG. 8 includes a substrate storage portion 57 that stores the mother substrate 12 and a robot 58 that transports the mother substrate 12. The robot 58 includes a base 59 placed on an installation surface such as a floor, the ground, a lift shaft 61 that moves up and down relative to the base 59, a first arm 62 that rotates around the lift shaft 61, and a first arm. The second arm 63 rotates with respect to 62, and the suction pad 64 provided on the lower surface of the tip of the second arm 63. The suction pad 64 can suck the mother substrate 12 by air suction or the like.

  In FIG. 8, a capping unit 76 and a cleaning unit 77 are disposed at one side position of the sub-scanning driving unit 21 under the trajectory of the print head 22 a driven by the main scanning driving unit 19 and moving in the main scanning direction. . An electronic balance 78 is disposed at the other side position. The cleaning unit 77 is a unit for cleaning the inkjet head 22. The electronic balance 78 is a device that measures the weight of ink droplets (seal material) discharged from each nozzle 27 (see FIG. 9) in the inkjet head 22 for each nozzle. The capping unit 76 is a unit for preventing the nozzle 27 (see FIG. 9) from drying when the inkjet head 22 is in a standby state.

  A head camera 81 is disposed in the vicinity of the print head 22a so as to move together with the print head 22a. A substrate camera 82 supported by a support device (not shown) provided on the base 9 is disposed at a position where the mother substrate 12 can be photographed.

  The control device 24 shown in FIG. 8 has a computer main body 66 containing a processor, a keyboard 67 as an input device, and a CRT (Cathode Ray Tube) display 68 as a display device. As shown in FIG. 16, the processor includes a CPU (Central Processing Unit) 69 that performs arithmetic processing and a memory (information storage medium) 71 that stores various types of information.

  A head driving circuit for driving the head position control means 17, the substrate position control means 18, the main scanning driving means 19, the sub scanning driving means 21, and the piezoelectric element 41 (see FIG. 14B) in the inkjet head 22 shown in FIG. In FIG. 16, each device 72 is connected to the CPU 69 via the input / output interface 73 and the bus 74. The substrate supply device 23, the input device 67, the display 68, the electronic balance 78, the cleaning unit 77, and the capping unit 76 are also connected to the CPU 69 via the input / output interface 73 and the bus 74.

  The memory 71 is a concept including a semiconductor memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory), and an external storage device such as a hard disk, a CD-ROM reader, and a disk-type storage medium. Is a storage area for storing program software in which the control procedure of the operation of the inkjet means 16 is described, a storage area for storing the discharge position of the sealing material in the mother substrate 12 (see FIG. 5) as coordinate data, 15 includes a storage area for storing the sub-scanning movement amount of the mother board 12 in the sub-scanning direction Y, a work area for the CPU 69, an area that functions as a temporary file, and other various storage areas. The

  The CPU 69 performs control for discharging the sealing material to a predetermined position on the surface of the mother substrate 12 according to the program software stored in the memory 71, and performs a cleaning process as a specific function realization unit. A cleaning calculation unit for performing calculation for realizing, a capping calculation unit for realizing capping processing, and a weight measurement calculation unit for performing calculation for realizing weight measurement using the electronic balance 78 (see FIG. 8); And a drawing calculation unit that performs calculation for drawing the sealing material by inkjet.

  The drawing calculation unit calculates a drawing start position calculation unit for setting the print head 22a to an initial position for drawing and a control for scanning and moving the print head 22a in the head scanning direction X at a predetermined speed. A scanning control calculation unit; a sub-scanning control calculation unit that calculates control for shifting the mother substrate 12 in the sub-scanning direction Y by a predetermined sub-scanning movement pitch by a sub-scanning amount; It has various functional calculation units such as a nozzle discharge control calculation unit that performs calculation for controlling which of the nozzles 27 is operated to discharge the sealing material.

  In addition, as described above, each function is not only realized by software using the CPU 69 but also if each function described above can be realized by a single electronic circuit that does not use the CPU, such electronic A circuit may be used.

  Further, as shown in FIG. 17, in the formation of the black mask 118, a method similar to the method for forming the sealing material described above is used. An ink jet head (not shown) is scanned over a region (black mask forming region) H for forming a black mask 118 set in the substrate forming region 13 in the mother substrate 12, and over the black mask forming region H, A grid-like black mask 118 can be formed by ejecting and dropping ink droplets from an inkjet head (not shown).

  As described above, when the black mask 118 is formed on the black mask forming region H set in the substrate forming region 13 existing in plural on the mother substrate 12, the material of the black mask 118 is ejected as ink droplets from the inkjet head. In this way, the time required for formation can be shortened, and a uniform and high-definition black mask 118 can be formed.

  In this case, the width of the black mask 118 is preferably 5 to 50 μm. If it exceeds 50 μm, the interval between the pixels becomes too wide, and it may be difficult to apply to a high-definition liquid crystal display device. The size of the formed grating is, for example, 30 μm × 100 μm.

  In the formation of the black mask 118, for example, as shown in FIG. 18 (a), not only the corner Q 'but also the protrusions protruding from the starting points of the respective lattice shapes (projection formation) as shown in FIG. The black mask 118 may be formed by landing ink droplets on the region W ′.

  Further, as shown in FIG. 18B, the black mask 118 may be formed by landing ink droplets on a region T ′ outside the black mask forming region in the scanning direction of the inkjet head.

  Examples of the grid shape of the black mask 118 include a shape formed so as to surround the array pattern of color dots shown in FIG. 3, for example, a pattern such as a stripe array, a delta array, or a mosaic array.

  In addition, the viscosity of the material for forming the black mask 118 is preferably 50 cp or less, and more preferably 10 cp or less.

  As shown in FIG. 2, the pair of substrates formed as described above includes a liquid crystal L, for example, STN (Super Twisted Nematic), in a gap surrounded by the substrates 107a and 107b and the sealing material 108, a so-called cell gap. Liquid crystal is enclosed. A large number of minute and spherical spacers 119 are dispersed on the inner surface of the first substrate 107a or the second substrate 107b, and the presence of these spacers 119 in the cell gap maintains the thickness of the cell gap uniform.

  The first electrode 114a and the second electrode 114b are arranged in an orthogonal relationship with each other, and their intersections are arranged in a dot matrix as seen from the direction of arrow A in FIG. Each intersection in the dot matrix form one pixel. The liquid crystal panel 102 arranges each color dot of R (red), G (green), and B (blue) in a predetermined pattern when viewed from the direction of the arrow A, for example, a pattern such as a stripe arrangement, a delta arrangement, or a mosaic arrangement. Is formed by. The one picture element (pixel) corresponds to each color dot of R (red), G (green) and B (blue), and R (red), G (green) and B The three layers of (blue) color dots form one unit to form one pixel.

  By selectively reflecting or transmitting a plurality of pixels (pixels) arranged in a dot matrix form to emit light, an image such as letters and numbers is displayed outside the second substrate 107 b of the liquid crystal panel 102. The area where the image is displayed in this way is the effective pixel area, and the planar rectangular area indicated by the arrow V in FIGS. 1 and 2 is the effective display area.

  As described above, the reflective film 112 shown in FIG. 2 is formed of a light reflective material such as an Ag-based alloy or an Al-based alloy, and each pixel (which is an intersection of the first electrode 114a and the second electrode 114b) ( An opening 105 is formed at a position corresponding to a pixel. As a result, the openings 105 are arranged in the same dot matrix as each pixel (pixel) as seen from the direction of arrow A in FIG.

  As shown in FIG. 1, the first substrate 107a is formed to have a larger area than the second substrate 107b, and when these substrates are bonded together by the sealant 108, the first substrate 107a is the second substrate 107b. It has the board | substrate overhang | projection part 107c projected outside. The substrate overhanging portion 107c is connected to the second electrode 114b on the second substrate 107b via a lead wire 114c extending from the first electrode 114a and a conductive material 109 (see FIG. 2) existing inside the sealing material 108. There are various wirings such as a lead-out wiring 114d that is electrically connected to the input wiring bump, that is, a metal wiring 114e that is connected to the input bump of the liquid crystal driving IC 103a, that is, a metal wiring 114f that is connected to the input bump of the liquid crystal driving IC 103b. It is formed with an appropriate pattern.

  The lead wiring 114c extending from the first electrode 114a and the lead wiring 114d conducting to the second electrode 114b are formed of a conductive oxide such as ITO which is the same material as those electrodes. Further, the metal wirings 114e and 114f, which are wirings on the input side of the liquid crystal driving ICs 103a and 103b, are formed of a metal material having a low electric resistance value, for example, an Ag-based alloy. The Ag-based alloy is an alloy mainly containing Ag and accompanyingly containing Pd and Cu, for example, an alloy composed of Ag 98%, Pd 1%, and Cu 1%.

  The liquid crystal driving IC 103a and the liquid crystal driving IC 103b are mounted by being adhered to the surface of the substrate overhanging portion 107c by an anisotropic conductive film (ACF) 122. That is, in the present embodiment, a so-called COG (Chip On Glass) liquid crystal panel having a structure in which a semiconductor chip is directly mounted on a substrate is formed. In this COG mounting structure, the input side bumps of the liquid crystal driving ICs 103a and 103b and the metal wirings 114e and 114f are conductively connected by conductive particles contained in the anisotropic conductive film (ACF) 122, and the liquid crystal The output side bumps of the driving ICs 103a and 103b and the lead wires 114c and 114d are conductively connected.

  As shown in FIG. 1, the flexible printed circuit board (FPC) 104 includes a flexible resin film 123, a circuit 126 including a chip component 124, and a metal wiring terminal 127. The circuit 126 is directly mounted on the surface of the resin film 123 by soldering or other conductive connection method. The metal wiring terminal 127 is made of an Ag-based alloy, Cr, Cu or other conductive material. The portion of the flexible printed circuit board (FPC) 104 where the metal wiring terminal 127 is formed is the anisotropic conductive film (ACF) 122 on the portion of the first substrate 107a where the metal wiring 114e and the metal wiring 114f are formed. Connected by. Then, by the action of the conductive particles contained in the anisotropic conductive film (ACF) 122, the metal wirings 114e and 114f on the substrate side and the metal wiring terminal 127 on the flexible printed circuit board (FPC) 104 side are conducted. .

  An external connection terminal 131 is formed at the opposite end of the flexible printed circuit board (FPC) 104, and the external connection terminal 131 is connected to an external circuit (not shown). Then, the liquid crystal driving ICs 103a and 103b are driven based on a signal transmitted from the external circuit, a scanning signal is supplied to one of the first electrode 114a and the second electrode 114b, and a data signal is supplied to the other. As a result, the voltage of the dot-matrix pixels (pixels) arranged in the effective display area V is controlled for each pixel, and as a result, the orientation of the liquid crystal L is controlled for each pixel (pixel). .

  A light source 106 functioning as a so-called backlight shown in FIG. 1 includes, as shown in FIG. 2, a light guide 132 made of acrylic resin or the like, and a diffusion sheet provided on a light emission surface 132b of the light guide 132. 133, a reflection sheet 134 provided on the surface opposite to the light emitting surface 132b of the light guide 132, and an LED (Light Emitting Diode) 136 as a light emitting source.

  The LED 136 is supported by the LED substrate 137, and the LED substrate 137 is attached to a support portion (not shown) formed integrally with the light guide 132, for example. When the LED substrate 137 is mounted at a predetermined position of the support portion, the LED 136 is disposed at a position facing the light capturing surface 132a which is the side end surface of the light guide 132. Reference numeral 138 indicates a buffer material for buffering an impact applied to the liquid crystal panel 102.

  So far, the passive matrix liquid crystal display device has been described as an example. However, the present invention is applied to an active matrix liquid crystal display device using a TFT (Thin Film Transistor) or a TFD (Thin Film Diode) as a pixel switching element. You may apply.

  The transflective liquid crystal display device configured as described above can be used as a display unit of various electronic devices, and an example thereof will be specifically described with reference to FIGS.

  FIG. 19 is a block diagram illustrating a circuit configuration of an electronic apparatus using the liquid crystal display device described above.

  In FIG. 19, the electronic apparatus includes a display information output source 170, a display information processing circuit 171, a power supply circuit 172, a timing generator 173, and a liquid crystal display device 101. In addition, the liquid crystal display device 101 includes a liquid crystal display panel 175 and a drive circuit 176.

  The display information output source 170 includes a memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a storage unit such as various disks, a tuning circuit that tunes and outputs a digital image signal, and the like. Display information such as an image signal of a predetermined format is supplied to the display information processing circuit 171 based on the various clock signals generated by 173.

  The display information processing circuit 171 includes various known circuits such as a serial-parallel conversion circuit, an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, and a clamp circuit, and executes processing of input display information, The image signal is supplied to the drive circuit 176 together with the clock signal CLK. The power supply circuit 172 supplies a predetermined voltage to each component.

  FIG. 20 shows a mobile personal computer which is another embodiment of the electronic apparatus of the present invention. A personal computer 180 shown here has a main body 182 provided with a keyboard 181 and a liquid crystal display unit 183. The liquid crystal display unit 183 includes the liquid crystal display device 101 described above.

  FIG. 21 shows a mobile phone which is another embodiment of the electronic apparatus of the invention. A cellular phone 190 shown here has a plurality of operation buttons 191 and a liquid crystal display device 101.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the embodiments and can be variously modified within the scope of the present invention.

  For example, in the above embodiment, the inkjet substrate 22 is moved in the main scanning direction to perform main scanning of the mother substrate 12, and the mother substrate 12 is moved by the sub-scanning drive device 21, whereby the mother substrate 12 is In contrast to this, the main scanning can be executed by moving the mother substrate 12 and the sub-scanning can be executed by moving the inkjet head 22.

  In the above-described embodiment, the ink jet head having a structure for ejecting ink using the flexural deformation of the piezoelectric element 41 is used. However, an ink jet head having another arbitrary structure may be used.

  For example, a thermal-type ink jet head in which bubbles are generated by heating in a tank containing ink and ink droplets are ejected by the bubbles can be used.

  In the above embodiment, an example of a transflective liquid crystal display device has been described. However, the present invention may be applied to a reflective or transmissive liquid crystal display device.

  As described above, according to the present invention, when a partition member such as a sealing material or a black mask is formed on a substrate, it is possible to reduce the time required for forming the sealing material with a high-definition pattern, It is possible to provide a partition member forming method, a substrate, a liquid crystal display device and a manufacturing method thereof, and an electronic apparatus that can easily and inexpensively form a partition member such as a black mask.

1 is an exploded perspective view schematically showing an embodiment of a liquid crystal display device of the present invention. It is sectional drawing in the XX line of FIG. It is a top view which shows the example of an arrangement | sequence of the pixel (pixel) which consists of a color dot of R (red), G (green), and B (blue) three colors in a liquid crystal display device. FIG. 2 is a plan view schematically showing the configuration of a substrate used in the liquid crystal display device of the present invention, in which (a) shows the whole mother substrate before cutting into individual substrates, and (b) shows one of (a). FIG. 4 is an enlarged view of each part showing individual substrates after cutting. It is explanatory drawing which shows typically the mother board | substrate used for one embodiment of the liquid crystal display device of this invention. 5 is a graph showing a process of forming a sealing material used in the liquid crystal display device of the present invention by an ink jet method, wherein (a) shows the relationship between the scanning position of the ink jet head and the number of landings, and (b) shows the ink jet head. 5 is a graph showing the relationship between the scanning position and the discharge amount. It is explanatory drawing which showed typically the shape of the sealing material used for the liquid crystal display device of this invention. It is a perspective view showing typically one embodiment of the ink jet means which constitutes the principal part of the manufacturing device of the liquid crystal display device of the present invention. It is the perspective view and top view which expand and typically show the inkjet head which is the principal part of the means shown in FIG. It is the perspective view and top view which show typically the example of 1 modification of an inkjet head. It is a top view which shows typically the other modification of an inkjet head. It is a top view which shows typically the other modification of an inkjet head. It is a top view which shows typically the other modification of an inkjet head. It is explanatory drawing which shows the internal structure of an inkjet head typically, Comprising: (a) is a perspective view which shows a partially broken part, (b) is a cross section which shows the cross-section in the JJ line | wire of (a) FIG. It is a perspective view which expands and shows typically the principal part of the means shown in FIG. It is a block diagram which shows the electric control system used for the inkjet head means shown in FIG. It is explanatory drawing which shows typically the mother board | substrate used for one embodiment of the liquid crystal display device of this invention. It is explanatory drawing which showed typically the shape of the black mask used for the liquid crystal display device of this invention. It is a block diagram which shows the circuit structure of the electronic device using the liquid crystal display device of this invention. It is explanatory drawing which shows the mobile personal computer which is other embodiment of the electronic device of this invention. It is explanatory drawing of the mobile telephone which is other embodiment of the electronic device of this invention. It is a perspective view which shows the manufacturing method of the conventional liquid crystal display device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 8 ... Ink droplet, 9 ... Base, 12 ... Mother board | substrate, 13 ... Substrate formation area, 14 ... Cover, 16 ... Inkjet means, 17 ... Head position control means, 18 ... Substrate position control means, 19 ... Main scanning drive means 21 ... Sub-scanning drive means, 22 ... Inkjet head, 22a ... Print head, 23 ... Substrate supply device, 24 ... Control device, 27 ... Nozzle, 28 ... Nozzle row, 31 ... Diaphragm, 32 ... Partition member, 33 ... Ink chamber, 34 ... Liquid reservoir, 37 ... Supply device, 38 ... Passage, 39 ... Ink pressurizing body, 41 ... Piezoelectric element, 42a, 42b ... Electrode, 43 ... Ink-repellent layer, 44 ... Alpha motor, 46 ... Beta motor 47 ... γ motor, 48 ... Ζ motor, 49 ... table, 51 ... θ motor, 52,54 ... guide rail, 53,56 ... slider, 58 ... robot, 59 ... base, 61 ... ascending Down axis, 62 ... 1st arm, 63 ... 2nd arm, 64 ... Suction pad, 66 ... Computer body, 67 ... Keyboard, 68 ... CRT (Cathode ..., Ray ... Tube) display, 69 ... CPU (Central ..., Processing ... Unit) 71 ... Memory (information storage medium) 76 ... Capping means 77 ... Cleaning means 78 ... Electronic balance 81 ... Head camera 82 ... Substrate camera 101 ... Liquid crystal display device 102 ... Liquid crystal Panels 103a, 103b ... driving ICs 104 ... flexible printed circuit board (FPC) 105 ... openings 106 ... light sources 107, 107a, 107b ... substrates 107c ... board overhanging portions 108 ... sealing material 109 ... conductive material, 110 ... opening, 111a, 111b ... base material, 112 ... reflective film, 11 ... Insulating film, 114a, 114b ... Electrode, 114c, 114d ... Lead-out wiring, 114e, 114f ... Metal wiring, 116a, 116b ... Alignment film, 117a, 117b ... Polarizing plate, 118 ... Black mask, 119 ... Spacer, 120 ... Lattice 121 ... Colored layer, 122 ... Anisotropic conductive film (ACF), 123 ... Resin film, 124 ... Chip component, 125 ... Color dot, 126 ... Circuit, 127 ... Metal wiring terminal, 131 ... External connection terminal, 132 ... Light guide, 132a ... light capturing surface, 132b ... light emitting surface, 133 ... diffusing sheet, 134 ... reflective sheet, 136 ... LED, 137 ... LED substrate, 138 ... buffer material, 170 ... display information output source, 171 ... display Information processing circuit, 172... Power supply circuit, 173... Timing generator, 175. Liquid crystal display panel, 176. , 180 ... Personal computer, 181 ... Keyboard, 182 ... Main body, 183 ... Liquid crystal display unit, 190 ... Mobile phone, 191 ... Operation buttons, D ... Nozzle arrangement pitch, E ... Sealing material formation area, H ... Black mask formation Area, L ... Liquid crystal, M ... Sealing material, P ... First landing point, Q, Q '... Corner, R ... Pixel area, S ... Projection, T, T' ... Area outside scanning direction of head , V: effective display area, W, W ′: protrusion, X: head scanning direction, Y: sub-scanning direction.

Claims (20)

A method of forming a partition member composed of a black mask for partitioning a predetermined area of a substrate,
Scanning one of the head and the substrate for discharging the material constituting the partition member with respect to the other, and landing the material discharged from the head on the partition member forming region on the substrate The method of forming the division member characterized by including a process. The partition member is formed in a predetermined shape,
2. The partition member forming method according to claim 1, wherein the material ejected first after the head scanning starts is landed on an outer position of the partition member formation region.   The method further includes a step of forming a protrusion connected to the partition member outside the partition member formation region, wherein the material discharged first after the start of the head scanning lands on the formation region of the protrusion. The method for forming a partition member according to claim 2.   The method for forming a partition member according to claim 3, wherein the total amount of the material that is landed is controlled so that the thickness of the protruding portion and the thickness of the partition member are substantially the same.   4. The partition member formation according to claim 3, wherein the number of landings per unit area in a corner of the partition member forming region is smaller than the number of landings per unit area in the partition member forming region other than the corner. Method.   The method for forming a partition member according to claim 3, wherein a discharge amount of the material per landing at the corner of the partition member forming region is smaller than that in the partition member forming region other than the corner. . A substrate provided with a partition member for partitioning a predetermined region,
The said division member is formed by the formation method of the division member as described in any one of Claims 1 thru | or 6. A substrate provided with a partition member that partitions the predetermined region in the partition member forming region,
Having a protrusion connected to the partition member outside the partition member formation region;
The board | substrate characterized by the said division member and the said protrusion part being formed with the same material.   The substrate according to claim 8, wherein a thickness of the protruding portion and a thickness of the partition member are substantially the same.   The substrate according to any one of claims 7 to 9, wherein the partition member is a black mask. A liquid crystal display device including a plurality of dots and a black mask as a partition member formed so as to surround the dots,
A liquid crystal display device, wherein the black mask is formed by the partition member forming method according to any one of claims 1 to 6. A liquid crystal display device comprising a plurality of dots and a black mask formed so as to surround the dots,
A protrusion connected to the black mask outside the black mask forming region;
The liquid crystal display device, wherein the black mask and the protrusion are formed of the same material.   The liquid crystal display device according to claim 12, wherein a thickness of the protruding portion and a thickness of the black mask are substantially the same.   An electronic apparatus comprising the liquid crystal display device according to claim 11. A method of manufacturing a liquid crystal display device including a plurality of dots on a substrate and a black mask formed so as to surround the dots,
Scanning one of the head and the substrate for discharging the material constituting the black mask with respect to the other; and the material discharged from the head in a black mask formation region on the substrate; And a step of landing so as to surround the dots. The black mask is formed in a predetermined shape,
The method of manufacturing a liquid crystal display device according to claim 15, wherein the material discharged first after the head scanning is started reaches an outer position of the black mask formation region.   The method further includes the step of forming a protrusion connected to the black mask outside the black mask formation region, wherein the material discharged first after the start of the head scanning lands on the formation region of the protrusion. A method for manufacturing a liquid crystal display device according to claim 16.   18. The method of manufacturing a liquid crystal display device according to claim 17, wherein the total amount of the material that is landed is controlled so that the thickness of the protruding portion is substantially the same as the thickness of the black mask.   18. The liquid crystal display according to claim 16, wherein the number of landings per unit area in a corner of the black mask forming region is smaller than the number of landings per unit area in a black mask forming region other than the corner. Device manufacturing method.   18. The liquid crystal display device according to claim 16, wherein a discharge amount of the material per landing at a corner portion of the black mask formation region is smaller than that in a black mask formation region other than the corner portion. Manufacturing method.

Images