WO2000013059A1 - Panneau a cristaux liquides et procede de fabrication de celui-ci - Google Patents
Panneau a cristaux liquides et procede de fabrication de celui-ci Download PDFInfo
- Publication number
- WO2000013059A1 WO2000013059A1 PCT/JP1999/004364 JP9904364W WO0013059A1 WO 2000013059 A1 WO2000013059 A1 WO 2000013059A1 JP 9904364 W JP9904364 W JP 9904364W WO 0013059 A1 WO0013059 A1 WO 0013059A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- substrates
- liquid crystal
- crystal panel
- sealing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
- G02F1/0107—Gaskets, spacers or sealing of cells; Filling and closing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
Definitions
- the present invention relates to a liquid crystal panel used for a liquid crystal display device and a method for manufacturing the same. More specifically, the present invention relates to a structure technology of each substrate constituting a liquid crystal panel. Background art
- the transparent first substrate 1 and the second substrate 2 constituting the liquid crystal panel 10 are fixed to each other with a spacer 32 interposed therebetween.
- the gaps 31 are bonded to each other with a gap, and a liquid crystal 40 is sealed in the gap 31.
- polarizing plates 4A and 4B are attached to the first and second substrates 1 and 2, respectively.
- an IT0 film Indium Tin in xide
- an electrode 6A for dot display is formed, on the inner surface of the second substrate 2, on the surface of a base protective film 21 made of a silicon oxide film, etc.
- An electrode 7A for dot display is formed.
- transparent insulating films 12 and 22 are formed so as to cover the electrodes 6A and 7A, and the surfaces of the transparent insulating films 12 and 22 are The alignment films 13 and 23 made of a polyimide film are formed.
- the sealing material 3 is conventionally a two-component epoxy resin of a phenol-novolak type or a two-component epoxy resin of an aliphatic resin, and is an alignment film 1 made of polyimide film.
- the conventional liquid crystal panel 10 it is necessary to secure a gap S between the sealing material 3 and the alignment films 13 and 23, so the following manufacturing is employed. That is, the conventional liquid crystal panel 1 In the manufacturing process, as shown in FIG. 12, the first and second substrates 1,
- a sealing material 3 is formed on one of the first and second large substrates 1A and 2A so as to surround the formation region of the alignment films 13 and 23 on the outer peripheral side.
- the first large substrate 1A and the second large substrate 2A are bonded together by 3. Next, after the first and second large substrates 1A and 2A are bonded together and cut into a single panel or a strip-shaped panel, the broken portion of the sealing material 3 is cut.
- the liquid crystal is injected under reduced pressure from 30 and then the gap 30 of the sealing material 3 is closed.
- the present invention provides a liquid crystal panel capable of expanding a screen display region by eliminating a low twist domain generated in a gap region between an alignment film and a sealing material, and a method of manufacturing the same. Is to make it happen. Disclosure of the invention
- a liquid crystal is sealed in a region partitioned by the sealing material between a pair of rectangular substrates bonded by a sealing material via a predetermined gap.
- the alignment films are formed on the surface side of the electrodes on the pair of substrates, respectively.
- at least a portion corresponding to three sides of the substrate on which the alignment film is formed is formed up to a region overlapping with the formation region of the sealing material.
- the alignment film is formed up to the region overlapping with the formation region of the sealing material, there is no gap between the sealing material and the alignment film. Therefore, there is no possibility that a low swisting domain is generated near the inner peripheral edge of the sealing material. Therefore, the vicinity of the inner peripheral edge of the sealing material can be effectively used as the screen display area, and the screen display area can be expanded.
- the liquid crystal panel according to the present invention is characterized in that the sealant is a one-part thermosetting epoxy sealant having high adhesion to a polyimide film used as an alignment film.
- thermosetting epoxy-based sealing materials tend to have high adhesion to a polyimide film used as an alignment film.
- acrylic or silicon-based rubber is used for the epoxy resin.
- Compounded with high-impact epoxy that has been polymerized is one-part thermosetting epoxy sealant. Above all, it exhibits excellent adhesion even with polyimide film, so even if a sealing material is formed so as to overlap the surface of the alignment film, sufficient liquid-tightness ⁇ Nature can be secured.
- the liquid crystal panel of the present invention is characterized in that the alignment film is formed up to a region corresponding to four sides of the substrate and overlapping with the formation region of the sealing material.
- the alignment film may form the sealing material forming region on each of the four sides of the substrate except for the side on which the input / output terminal and the inter-substrate conduction terminal are formed. It is characterized in that it is formed over the edge of the substrate.
- a transparent insulating film covering the electrode is formed below the alignment film in a region substantially overlapping the formation region of the alignment film.
- the method for manufacturing a liquid crystal panel according to the present invention may be configured such that, among the surfaces of the large substrate for taking a plurality of the pair of substrates, each of the large substrates is divided as the pair of substrates when the large substrate is cut along the cutting line After forming each of the electrodes in the substrate forming region, it is necessary to form a thin film on which the alignment film is to be formed in a region corresponding to at least three sides of the substrate forming region up to a region overlapping with the sealing material forming region.
- the method for manufacturing a liquid crystal panel according to the present invention when the large substrate is cut along a predetermined cutting line on the surface of the large substrate for taking a plurality of the pair of substrates, After each of the electrodes is formed in each of the divided substrate formation regions, a thin film on which the alignment film is to be formed is formed in each of the plurality of substrate formation regions that straddle the planned cutting line. Further, in the method for manufacturing a liquid crystal panel according to the present invention, the method may further include, when cutting the large substrate along a predetermined cutting line among the surfaces of the pair of large substrates for taking a plurality of the pair of substrates.
- each of the electrodes is formed in each of the substrate forming regions divided as a pair of substrates, each of the pair of large substrates is formed. Then, after forming a thin film on which the alignment film is to be formed on a plurality of substrate forming regions straddling the planned cutting line, the sealing material is formed on at least one of the pair of large substrates. The large substrates are attached to each other, and thereafter, the attached large substrates are cut along the planned cutting line.
- the substrate formation region may have a cut line such that sides on which the input / output terminals and the inter-substrate conduction terminals are formed face each other.
- the thin film is formed in a strip shape along the cut line. If the thin film on which the alignment film is to be formed is formed in a strip shape, the end of the roller is directed to the side where the input / output terminals and the inter-substrate conduction terminals are formed in flexographic printing.
- the printing area can be controlled with a certain degree of accuracy differently from the running direction of the roller. Therefore, even if an alignment film cannot be formed up to the edge of the substrate in the width direction, the sealing material is used.
- the alignment film can be formed so as to be very close to the formation region of the sealing material or to partially overlap the formation region of the sealing material.
- FIG. 1 is a perspective view showing the appearance of a liquid crystal display device.
- FIG. 2 is an exploded perspective view of a liquid crystal panel used in the liquid crystal display device shown in FIG.
- FIG. 3 is a plan view showing an arrangement pattern of transparent electrodes formed on a first substrate of the liquid crystal panel shown in FIG.
- FIG. 4 is a plan view showing an arrangement pattern of transparent electrodes formed on a second substrate of the liquid crystal panel shown in FIG.
- FIG. 5 (A) and (B) are a cross-sectional view of the liquid crystal panel shown in FIG. 1, and a cross-sectional view showing an enlarged end thereof.
- FIG. 6 is a plan view of the liquid crystal panel schematically showing the relationship between the alignment film forming region and the sealing material forming region of the liquid crystal panel shown in FIG.
- FIG. 7 shows first and second large substrates for taking a plurality of first and second substrates, respectively, in the process of manufacturing the liquid crystal panel shown in FIG. 1;
- FIG. 3 is an explanatory view showing a transparent insulating film and an alignment film forming region (a downward-sloping dotted hatched region) and a sealing material forming region (a right-sloping solid solid hatched region) formed on a large-sized substrate.
- FIG. 8 shows first and second large substrates for taking a plurality of first substrates and second substrates, respectively, in a liquid crystal panel manufacturing process according to Embodiment 2 of the present invention.
- FIG. 4 is an explanatory diagram showing a transparent insulating film and an alignment film forming region (a downward-sloping dotted hatched region) and a sealing material forming region (a right-sloping solid solid hatched region) formed on the first and second large substrates. .
- FIG. 9 shows first and second large substrates for taking a plurality of first and second substrates, respectively, in a liquid crystal panel manufacturing process according to Embodiment 3 of the present invention.
- FIG. 4 is an explanatory view showing a transparent insulating film and an alignment film forming region (a downward-sloping dotted hatched region) and a sealing material forming region (a right-sloping solid solid hatched region) formed on a second large substrate.
- FIG. 10 shows first and second large substrates for taking a plurality of first and second substrates, respectively, in a liquid crystal panel manufacturing process according to Embodiment 4 of the present invention;
- the area where the transparent insulating film and the alignment film formed on these first and second large substrates are formed hatchched area with the dotted line falling to the right
- the area where the sealing material is formed are shown.
- FIGS. 11A and 11B are a cross-sectional view of a conventional liquid crystal panel and a cross-sectional view showing an enlarged end thereof, respectively.
- FIG. 12 shows first and second large substrates for taking a plurality of first and second substrates, respectively, in the conventional liquid crystal panel manufacturing process shown in FIG. Area for forming the transparent insulating film and alignment film formed on the second large substrate and the area for forming the sealing material It is explanatory drawing which shows an area
- FIG. 1 is a perspective view showing an appearance of a liquid crystal display device
- FIG. 2 is an exploded perspective view thereof.
- FIGS. 1 and 2 only a part of the wiring patterns and terminals is shown, and the details thereof are shown in FIGS. 3 and 4.
- a liquid crystal panel 10 of a liquid crystal display device mounted on an electronic device such as a mobile phone has a first substrate 1 made of a transparent glass or the like, and a glass substrate also made of a transparent glass or the like. Second substrate 2 provided. A seal material 3 containing a gap material and conductive particles is formed on one of these substrates by printing or the like, and the first substrate 1 and the second substrate 2 are bonded and fixed with the seal material 3 interposed therebetween. . In this state, a predetermined gap is secured between the first substrate 1 and the second substrate 2 by the gap material contained in the sealing material 3, and the liquid crystal partitioned and formed by the sealing material 3 in this gap is provided. The liquid crystal 40 is sealed in the sealing area 41.
- a polarizing plate 4A is attached to the outer surface of the first substrate 1 with an adhesive or the like, and a polarizing plate 4B is also attached to the outer surface of the second substrate 2 with an adhesive or the like.
- a reflection plate (not shown) is provided outside the polarizing plate 4B attached to the second substrate 2 or instead of the polarizing plate 4B. Is affixed.
- the second substrate 2 is larger than the first substrate 1, the second substrate 2 is partially overlapped with the first substrate 1 in a state where the first substrate 1 is superimposed on the second substrate 2.
- An IC mounting area 9 is formed in the overhanging portion 110 so as to be adjacent to the liquid crystal enclosing area 41, and a driving IC 33 is mounted thereon by COG (Chip On G 1 ass).
- COG Chip On G 1 ass.
- a plurality of input / output terminals 7 D are formed along the edge of the substrate so as to be adjacent to the IC mounting area 9. 7D, a flexible substrate 29 is connected as shown by a two-dot chain line in FIG.
- FIGS. 3 and 4 are plan views showing arrangement patterns of the transparent electrodes formed on the first substrate 1 and the second substrate 2, respectively.
- an electrode 6A for character display or dot display, and a liquid crystal encapsulation area are provided inside a liquid crystal encapsulation area 41 defined by the sealant 3.
- An electrode pattern 6 having terminals 6C for inter-substrate conduction arranged along the side 101 is formed outside of 41 to conduct with the second substrate 2.
- This electrode pattern 6 is formed of an ITO film or the like.
- An electrode pattern 7 having terminals 7C for inter-substrate conduction arranged on the side of 1 and input / output terminals ⁇ D arranged along the side 201 is formed.
- This electrode pattern 7 is also formed of an IT film or the like.
- the first substrate 1 and the second substrate 2 overlap.
- the sealing material 3 is melted and hardened while applying a force that narrows the gap in a sprinkled state, the conductive particles are crushed between the first substrate 1 and the second substrate 2.
- the terminal 6C of the first substrate 1 and the terminal 7C of the second substrate 2 are electrically connected.
- FIG. 5 (A) and 5 (B) are a cross-sectional view of the liquid crystal panel shown in FIG. 1 and a cross-sectional view showing an enlarged end thereof, respectively.
- Fig. 6 shows the liquid shown in Fig. 1.
- the first and second substrates 1 and 2 are transparent so as to cover the electrodes 6A and 7A, as shown in FIGS. 5 (A;) and (B).
- Insulating films 12 and 22 are formed, and alignment films 13 and 23 made of a polyimide film are formed on the surfaces of the transparent insulating films 12 and 22. These alignment films 13 and 23 are rubbed polyimide films, and the liquid crystal 40 is used in a STN (SUPER TwistedNematic) system.
- FIG. 5 (A), (B) and FIG. 6 the regions where the alignment films 13 and 23 and the transparent insulating films 12 and 22 are formed are indicated by hatched regions with broken lines, and the formation of the sealing material 3 is shown. The regions are indicated by solid-line hatched regions.)
- the transparent insulating films 12 and 22 and the alignment films 13 and 23 are The portions corresponding to the four sides 101 to 104 and 201 to 204 of the first and second substrates 1 and 2 are formed up to the region overlapping the formation region of the sealing material 3.
- thermosetting epoxy sealing material 3 used here a one-component thermosetting epoxy sealing material having high adhesion even between the polyimide films constituting the alignment films 13 and 23 is used.
- a one-component thermosetting epoxy sealing material having high adhesion even between the polyimide films constituting the alignment films 13 and 23 is used.
- This one-part thermosetting epoxy sealant is made by dispersing dicyandiamide, dihydrazide, imidazole and other latent curing agents in an epoxy resin, and furthermore, an inorganic filler, a solvent and a viscosity modifier. And the like.
- high-impact epoxy technology that is, high-impact epoxy obtained by subjecting an acrylic resin or silicon-based rubber to craft polymerization by epoxy resin is blended.
- the Struct Bond ES series manufactured by Mitsui Toatsu Chemical Co., Ltd. demonstrates excellent adhesion even with polyimide films. Therefore, even if the sealing material 3 is formed so as to overlap the surfaces of the alignment films 13 and 23, excellent liquid tightness and air tightness are exhibited at the interface between them.
- a portion corresponding to the side 101 of the first substrate 1 is provided with a terminal 6 C for conduction with the second substrate 2.
- terminals 7C and input / output terminals 7D for conduction with the first substrate 1 are formed in a portion corresponding to the side 201 of the second substrate 2, so that these terminals are formed. If 6 C, 7 C, and 7 D are covered with the alignment films 13 and 23, electrical conduction cannot be achieved.
- the alignment films 13 and 23 are formed so as to partially overlap the formation region of the sealing material 3. In other portions corresponding to the three sides 102 to 104 and 202 to 204, the alignment films 13 and 23 are formed up to the edges of the first and second substrates 1 and 2. .
- the transparent insulating films 12 and 22 formed so as to cover the electrodes 6C and 7C are formed so as to substantially overlap the alignment films 13 and 23. You In other words, even when the transparent insulating films 12 and 22 are covered with the conduction terminals 6C and 7C and the input / output terminals 7D of the first and second substrates 1 and 2, electrical conduction cannot be achieved. Therefore, out of the four sides 101 to 104 and 201 to 204 of the first and second substrates 1 and 2, the conduction terminals 6C and 7C and the input / output terminals 7D are formed.
- the transparent insulating films 12 and 22 are formed so as to partially overlap the formation region of the sealing material 3 and the other three sides In portions corresponding to 102 to 104 and 202 to 204, the transparent insulating films 12 and 22 are formed up to the edges of the first and second substrates 1 and 2, respectively. Therefore, in the liquid crystal panel 10 of the present embodiment, there is no gap between the seal material 3 and the alignment films 13 and 23 as shown in FIG. There is no possibility that a low swist domain occurs in the liquid crystal 40 near the edge. Therefore, the vicinity of the inner periphery of the sealing material 3 can also be used as an effective screen display area, and the screen display area can be expanded.
- FIG. 7 shows first and second large substrates 1A and 2A for taking a plurality of first substrates 1 and second substrates 2, respectively, in the process of manufacturing the liquid crystal panel shown in FIG. Explanatory drawing showing the formation regions of the transparent insulating films 12 and 22 and the alignment films 13 and 23 formed on the first and second large substrates 1A and 2A, and the formation region of the sealing material 3. It is.
- FIG. 7 shows first and second large substrates 1A and 2A for taking a plurality of first substrates 1 and second substrates 2, respectively.
- FIGS. 5 (A) and 5 (B) The area where the transparent insulating films 12 and 22 and the alignment films 13 and 23 are formed for the large substrates 1A and 2A (shaded area with broken lines) and the area where the sealing material 3 is formed (shaded area with solid lines) are shown. Since other components are omitted, refer to FIGS. 5 (A) and 5 (B) for a description of each component formed on the first and second large substrates 1A and 2A.
- the first substrate 1 After forming the base protective films 11 and 21 on the entire surface of the first and second large substrates 1 A and 2 A for taking a plurality of the second substrates 2 respectively, these large substrates 1 A and When the substrate 8 is cut along the cut line 1 and L2, the substrate 6A, 7 Form electrode patterns 6 and 7 for A and terminals 6 C and 7 C.
- transparent insulating films 12 and 22 made of a silicon oxide film are formed on first and second large substrates 1A and 2A so as to cover electrodes 6A and 7A.
- These transparent insulating films 12 and 22 are formed in a strip shape over a plurality of substrate forming regions across the planned cutting lines 1 and L2. That is, in the first and second large substrates 1A and 2A, the sides 101 and 201 on which the input / output terminal 12 and the terminals 6C and 7C for inter-substrate conduction are formed are mutually connected. Since the substrate forming region is arranged so as to face the opposite side with the planned cutting line L2 interposed therebetween, the transparent insulating films 12 and 22 are formed in a strip shape along the planned cutting line L2.
- the first and second large substrates 1A and 2A are cut along the cut lines Ll and L2, and the first and second large substrates 1A and 2A are divided into single first and second substrates 1 and 2.
- the transparent insulating films 12 and 22 overlap the formation region of the sealing material 3. It is formed.
- the transparent insulating films 12 and 22 are connected to the terminals 6A for inter-substrate conduction among the four sides 101 to 104 and 201 to 204 of the first and second substrates 1 and 2.
- Three sides 102-104 and 202-204 are the areas where seal material 3 is formed Side formed on the edge of the first and second substrates 1 and 2 over which the terminals 6 A and 7 A for connection between the substrates and the input / output terminal 7 D are formed. The portion corresponding to 1 is formed so as to partially overlap the formation region of the sealing material 3.
- a polyimide film (alignment films 13 and 23) is applied to the first and second large substrates 1A and 2A by flexographic printing so as to cover the transparent insulating films 12 and 22.
- These polyimide films are also A plurality of substrate formation regions are formed in a band shape over Ll and L2. That is, in the first and second large substrates 1A and 2A, the sides 101 and 210 where the input / output terminal 7D and the terminals 6C and 7C for conduction between the substrates are formed. Since the substrate forming areas are arranged so as to face each other on both sides of the predetermined cutting line L2, the roller ends of the flexographic printing press are directed toward sides 101 and 201. Is moved along the planned cutting line L2, and the polyimide film (the alignment films 13 and 23) is formed in a strip shape along the planned cutting line L2.
- the polyimide film (alignment films 13 and 23) is sealed. It is formed so as to overlap the formation region of the material 3.
- the polyimide film (alignment films 13 and 23) is formed between the four sides 101-104 and 210-204 of the first and second substrates 1 and 2.
- sides 101 and 210 where conduction terminals 6 A and 7 A and input / output terminal 7 D are formed.
- the first and second substrates 1 and 2 are formed beyond the formation region of the sealing material 3 to the edges of the first and second substrates 1 and 2, and terminals 6 A and 7 A for inter-substrate conduction and input / output terminals 7 D are formed.
- the portions corresponding to the sides 101 and 201 are formed so as to partially overlap the formation region of the sealing material 3.
- a cut portion 30 of the sealing material 3 is opened on the cut surface (a portion corresponding to sides 104 and 204).
- the sealing material Liquid crystal 40 is injected into the area defined by 3. Therefore, after the injection of the liquid crystal 40, if the discontinuous portion 30 of the sealing material 3 is closed, the liquid crystal 40 is sealed in the gap 31 between the first and second substrates 1, 2. In this state, however, if the liquid crystal panel 10 is already divided into a single product, the polarizing plates 4A and 4B are directly attached as shown in FIGS. 1 and 5 (A) and (B). On the other hand, if the panel is divided into strip-shaped panels, the panel is divided into single liquid crystal panels 10 and then the polarizing plates 4A and 4B are attached.
- a flexible wiring board 29 is pressure-bonded to the input / output terminals 7D of the second board 2 using an anisotropic conductive film or the like, and sent to an inspection step.
- solid coating may be performed in the traveling direction of the roller surface of the flexographic printing press (the direction indicated by the arrow X in FIG. 7). Even if the print area cannot be controlled, no gap is generated between the seal material 3 and the alignment films 13 and 23.
- the alignment films 13 and 23 are composed of terminals 6A and 7A for inter-substrate conduction and input / output terminals 7D. It is necessary to control the print area so as not to cover the In such a direction, since the control of the printing area is relatively easy in the flexographic printing press, no gap is generated between the sealing material 3 and the alignment films 13 and 23 in this direction.
- FIG. 8 shows first and second large substrates for taking a plurality of first substrates and second substrates, respectively, in a liquid crystal panel manufacturing process according to Embodiment 2 of the present invention.
- FIG. 4 is an explanatory diagram showing a transparent insulating film and an alignment film forming region (a downward-sloping dotted hatched region) and a sealing material forming region (a right-sloping solid solid hatched region) formed on the first and second large substrates. .
- the basic configuration of the liquid crystal panel of this embodiment is the same as that of the liquid crystal panel according to the first embodiment, and the corresponding portions are denoted by the same reference numerals and are shown in FIG. Detailed description is omitted.
- electrodes 6A and 7A are applied to first and second large substrates 1A and 2A (see FIGS. 3, 4 and 5).
- Transparent insulating films 12 and 22 made of a silicon oxide film are formed so as to cover them. These transparent insulating films 12 and 22 cross over the planned cutting line L1 among the planned cutting lines 1 and L2, but do not cross over the planned cutting line L2, and extend to a plurality of substrate forming regions. To form a band for each row.
- the transparent insulating films 12 and 22 overlap the formation region of the sealing material 3. It is formed.
- the transparent insulating films 12 and 22 are connected to the terminals 6 A for inter-substrate conduction among the four sides 101 to 104 and 201 to 204 of the first and second substrates 1 and 2.
- a polyimide film (alignment films 13 and 23) is applied to the first and second large substrates 1A and 2A by flexographic printing so as to cover the transparent insulating films 12 and 22. Form. These polyimide films (alignment films 13 and 23) also straddle the planned cutting line L1 of the planned cutting lines Ll and L2, but do not straddle the planned cutting line L2.
- the first and second large substrates 1A and 2A are cut along the planned cutting lines Ll and L2 and cut into single first and second substrates 1 and 2.
- the polyimide film (the alignment films 13 and 23) is a sealing material 3. It is formed so as to overlap the formation region of.
- the polyimide film (the alignment films 13 and 23 are used for conduction between the substrates of the four sides 101 to 104 and 201 to 204 of the first and second substrates 1 and 2).
- FIG. 9 shows first and second large substrates for taking a plurality of first and second substrates, respectively, in a liquid crystal panel manufacturing process according to Embodiment 3 of the present invention.
- FIG. 4 is an explanatory view showing a transparent insulating film and an alignment film forming region (a downward-sloping dotted hatched region) and a sealing material forming region (a right-sloping solid solid hatched region) formed on a second large substrate.
- the basic configuration of the liquid crystal panel of this embodiment is the same as that of the liquid crystal panel according to the first embodiment, and the corresponding parts are denoted by the same reference numerals and are shown in FIG. Detailed description is omitted.
- electrodes 6A and 7A are applied to first and second large substrates 1A and 2A (see FIGS. 3, 4 and 5).
- Transparent insulating films 12 and 22 made of a silicon oxide film are formed so as to cover them. This These transparent insulating films 12 and 22 form a strip-shaped force on a plurality of substrate forming regions without straddling the planned cutting line L1 among the planned cutting lines 1 and L2. Formed.
- the first and second large-sized substrates 1A and 28 are cut along the planned cutting line 1 and L2 to separate the first and second large-sized substrates 1 and 2 into single and second substrates 1 and 2.
- the transparent insulating films 12 and 22 are formed so as to overlap the formation region of the sealing material 3. You.
- the transparent insulating films 12 and 22 are disposed on the side of the planned cutting line L 2 among the four sides 101 to 1 of the first and second substrates 1 and 2; L 04 and 201 to 204.
- the portions corresponding to the located sides 103 and 203 the portions are formed up to the edges of the first and second substrates 1 and 2 beyond the formation region of the sealing material 3.
- a polyimide film (alignment films 13 and 23) is formed by flexographic printing on the first and second large substrates 1A and 2A so as to cover the transparent insulating films 12 and 22. I do.
- These polyimide films (alignment films 13 and 23) also straddle the planned cutting line L2 of the planned cutting lines Ll and L2, but do not cross A band is formed on the substrate forming region.
- the first and second large substrates 1A and 28 are cut along the cut lines 1 and L2, and the first and second large substrates 1 and 2 are divided into single and second substrates 1 and 2.
- the polyimide film (the alignment films 13 and 23) is a sealing material. It is formed so as to overlap the formation region of No. 3.
- the polyimide film (alignment film 13, 23) is a cutting line of the four sides 101-104, 210-204 of the first and second substrates 1, 2. In the portion corresponding to sides 103 and 203 located on the side of L2, it is formed beyond the formation region of the seal material 3 to the edges of the first and second substrates 1 and 2. .
- FIG. 10 is a view showing a first step and a second step for taking a plurality of first and second substrates in a liquid crystal panel manufacturing process according to Embodiment 4 of the present invention.
- the second large-sized substrate, the transparent insulating film and the alignment film formed on these first and second large-sized substrates (the dotted region with a downward sloping dotted line), and the sealing material formed region (the right
- It is an explanatory view showing an upward solid line (hatched area).
- the basic configuration of the liquid crystal panel of this embodiment is the same as that of the liquid crystal panel according to the first embodiment, and the corresponding parts are denoted by the same reference numerals and are shown in FIG. Detailed description is omitted.
- the electrodes 6A and 7A are applied to the first and second large substrates 1A and 2A (see FIGS. 3, 4 and 5).
- the transparent insulating films 12 and 22 made of a silicon oxide film are formed so as to cover). These transparent insulating films 12 and 22 are formed independently for each of the plurality of substrate formation regions without straddling the planned cutting lines L1 and L2. Nevertheless, when the first and second large substrates 1A, 28 are cut along the planned cutting line 1, L2 and divided into single first and second substrates 1, 2, the first and second large substrates 1A, 28 are cut. In the portions corresponding to the four sides 101 to 104 and 201 to 204 of the two substrates 1 and 2, the transparent insulating films 12 and 22 are formed so as to overlap the formation region of the sealing material 3. Is done.
- a polyimide film (alignment films 13 and 23) is formed by flexographic printing on the first and second large substrates 1A and 2A so as to cover the transparent insulating films 12 and 22. I do.
- These polyimide films (alignment films 13 and 23) are also formed for each of a plurality of substrate formation regions without straddling the planned cutting lines L1 and L2. Nevertheless, the first and second large substrates 1A and 2A are cut along the planned cutting lines Ll and L2, and the first and second large substrates 1A and 2A are divided into the first and second single substrates 1 and 2, respectively.
- the polyimide film (the alignment films 13 and 23) is formed in the region where the sealing material 3 is formed. It is formed so as to overlap.
- the transparent insulating films 12 and 22 and the polyimide film are formed so as to overlap the formation region of the sealing material 3 on the four sides of the substrate. Formed at least on three sides It suffices that it overlaps with the formation region of the material 3.
- the terminals 6A and 7A for inter-substrate conduction and the input / output terminals 7 are formed inside the formation region of the sealing material 3. The range may be stopped.
- the example is a passive matrix type liquid crystal panel
- the present invention may be applied to an active matrix type liquid crystal panel.
- the alignment film and the like are formed at the stage of a large substrate, and the large substrates are bonded to each other and then cut into a single liquid crystal panel.
- the present invention can be applied to the case of forming. Industrial applicability
- the alignment film is formed up to the region overlapping with the formation region of the sealing material, there is no gap between the sealing material and the alignment film.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/530,122 US6989879B1 (en) | 1998-08-31 | 1999-08-11 | Liquid crystal panel and method of fabricating the same |
| JP2000567986A JP3503597B2 (ja) | 1998-08-31 | 1999-08-11 | 液晶パネルおよびその製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10/246032 | 1998-08-31 | ||
| JP24603298 | 1998-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000013059A1 true WO2000013059A1 (fr) | 2000-03-09 |
Family
ID=17142446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/004364 Ceased WO2000013059A1 (fr) | 1998-08-31 | 1999-08-11 | Panneau a cristaux liquides et procede de fabrication de celui-ci |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6989879B1 (ja) |
| JP (1) | JP3503597B2 (ja) |
| KR (1) | KR100516656B1 (ja) |
| CN (1) | CN1179237C (ja) |
| TW (1) | TW498176B (ja) |
| WO (1) | WO2000013059A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6037070B1 (ja) * | 2016-02-22 | 2016-11-30 | 大日本印刷株式会社 | 調光セル |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100790352B1 (ko) * | 2001-05-22 | 2008-01-02 | 엘지.필립스 엘시디 주식회사 | 반사형과 반사투과형 액정표시장치와 그 제조방법 |
| US6903787B2 (en) | 2002-02-20 | 2005-06-07 | Fujitsu Display Technologies Corporation | Liquid crystal display device's substrate, liquid crystal display device including the same, and manufacturing method of the same |
| JP4064687B2 (ja) * | 2002-02-20 | 2008-03-19 | シャープ株式会社 | 液晶表示装置及びその製造方法 |
| JP4156445B2 (ja) * | 2003-06-04 | 2008-09-24 | 株式会社 日立ディスプレイズ | 液晶表示装置の製造方法 |
| KR101007715B1 (ko) * | 2003-09-19 | 2011-01-13 | 삼성전자주식회사 | 액정 표시 장치 및 그 제조방법 |
| TWI306530B (en) * | 2003-10-01 | 2009-02-21 | Himax Tech Inc | Liquid crystal display panel and liquid crystal on silicon display panel |
| TW200600934A (en) * | 2004-06-18 | 2006-01-01 | Innolux Display Corp | Liquid crystal display panel and process for producing it |
| US7554637B2 (en) * | 2004-08-27 | 2009-06-30 | Samsung Electronics Co., Ltd. | Liquid crystal display panel and display apparatus having the same |
| KR101100892B1 (ko) * | 2004-08-27 | 2012-01-02 | 삼성전자주식회사 | 표시 장치 |
| US20070224369A1 (en) * | 2006-03-24 | 2007-09-27 | Seiko Epson Corporation | Liquid crystal device, method for manufacturing the same, and electronic apparatus |
| TWI311216B (en) * | 2006-07-14 | 2009-06-21 | Innolux Display Corp | Panel used in liquid crystal display device |
| JP4631923B2 (ja) * | 2008-04-11 | 2011-02-16 | ソニー株式会社 | 液晶装置及び電子機器 |
| KR20110106082A (ko) * | 2010-03-22 | 2011-09-28 | 삼성모바일디스플레이주식회사 | 액정 표시 장치 및 그 제조방법 |
| JP5549328B2 (ja) * | 2010-04-02 | 2014-07-16 | セイコーエプソン株式会社 | 電気光学装置及び電子機器 |
| JP5457321B2 (ja) | 2010-09-28 | 2014-04-02 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
| CN102608811A (zh) * | 2012-03-22 | 2012-07-25 | 深圳市华星光电技术有限公司 | 液晶显示装置及其制造方法 |
| KR101977241B1 (ko) * | 2012-05-23 | 2019-05-10 | 엘지디스플레이 주식회사 | 패턴드 리타더 방식의 입체 영상 표시장치에 적용되는 블랙 스트립을 구비한 편광 필름 |
| CN103576390A (zh) * | 2012-08-01 | 2014-02-12 | 立景光电股份有限公司 | 显示器 |
| JP6192914B2 (ja) * | 2012-10-01 | 2017-09-06 | 株式会社ジャパンディスプレイ | 表示装置およびその製造方法 |
| JP2015069195A (ja) | 2013-10-01 | 2015-04-13 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
| JP6400284B2 (ja) * | 2013-10-22 | 2018-10-03 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
| KR102224443B1 (ko) | 2014-12-10 | 2021-03-09 | 엘지디스플레이 주식회사 | 액정 표시 장치 |
| CN110187566A (zh) * | 2019-05-10 | 2019-08-30 | 深圳市华星光电技术有限公司 | 框胶及液晶显示面板 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238948A (en) * | 1975-09-23 | 1977-03-25 | Sharp Corp | Liquid crystal cell for display |
| JPS59174820A (ja) * | 1983-03-24 | 1984-10-03 | Sharp Corp | 液晶表示素子 |
| JPS60181730A (ja) * | 1984-02-29 | 1985-09-17 | Toshiba Corp | 液晶表示器 |
| JPS62269119A (ja) * | 1986-05-16 | 1987-11-21 | Stanley Electric Co Ltd | 液晶表示素子 |
| JPS62269934A (ja) * | 1986-05-19 | 1987-11-24 | Stanley Electric Co Ltd | 液晶表示素子の製造方法 |
| JPH0470811A (ja) * | 1990-07-12 | 1992-03-05 | Seiko Epson Corp | 電気光学装置および電気光学装置の製造方法 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH629002A5 (en) * | 1979-05-04 | 1982-03-31 | Ebauches Electroniques Sa | Passive electrooptic display cell and method for manufacture thereof |
| JPS60181731A (ja) | 1984-02-29 | 1985-09-17 | Hitachi Ltd | 液晶表示素子 |
| EP0208293B1 (en) * | 1985-07-10 | 1990-02-21 | Hitachi, Ltd. | A ferroelectric liquid crystal element and a method for manufacturing the same |
| US5150239A (en) * | 1990-02-09 | 1992-09-22 | Canon Kabushiki Kaisha | One-pack type epoxy sealant with amine-type curing agent, for liquid crystal cell, display apparatus and recording apparatus |
| JPH0477131A (ja) | 1990-07-17 | 1992-03-11 | Kemikaraijingu Kenkyusho:Kk | 光送受信装置 |
| EP0544013B1 (en) * | 1991-06-17 | 1996-03-13 | Seiko Epson Corporation | Phase difference elemental film, phase difference plate and liquid crystal display |
| KR940015614A (ko) | 1992-12-28 | 1994-07-21 | 석진철 | 액정패널의 제조방법 |
| JPH06208124A (ja) | 1993-01-11 | 1994-07-26 | Hitachi Ltd | 液晶表示素子 |
| US5625473A (en) * | 1993-05-06 | 1997-04-29 | Sharp Kabushiki Kaisha | Liquid crystal display device with polymer walls and method for producing the same |
| US5717474A (en) * | 1994-09-30 | 1998-02-10 | Honeywell Inc. | Wide-viewing angle multi-domain halftone active matrix liquid crystal display having compensating retardation |
| JPH08278489A (ja) | 1995-04-07 | 1996-10-22 | Citizen Watch Co Ltd | 液晶表示パネルの製造方法 |
| JP3511861B2 (ja) * | 1996-10-04 | 2004-03-29 | セイコーエプソン株式会社 | 液晶表示パネル及びその検査方法、並びに液晶表示パネルの製造方法 |
| JPH10123503A (ja) * | 1996-10-17 | 1998-05-15 | Sharp Corp | 液晶表示装置 |
| JPH10198285A (ja) | 1997-01-13 | 1998-07-31 | Toshiba Corp | 平面表示装置 |
| JPH10333152A (ja) * | 1997-03-31 | 1998-12-18 | Denso Corp | 液晶セル |
| US5818625A (en) * | 1997-04-02 | 1998-10-06 | Gentex Corporation | Electrochromic rearview mirror incorporating a third surface metal reflector |
| JPH10282480A (ja) * | 1997-04-04 | 1998-10-23 | Sanyo Electric Co Ltd | マザーガラス基板 |
| JP3955376B2 (ja) * | 1997-05-13 | 2007-08-08 | セイコーエプソン株式会社 | 液晶表示パネルおよび液晶表示パネルの検査方法 |
| JP3406492B2 (ja) * | 1997-05-26 | 2003-05-12 | シャープ株式会社 | 液晶パネル |
| JP4028043B2 (ja) * | 1997-10-03 | 2007-12-26 | コニカミノルタホールディングス株式会社 | 液晶光変調素子および液晶光変調素子の製造方法 |
| JPH11183904A (ja) * | 1997-12-22 | 1999-07-09 | Hitachi Ltd | 液晶表示装置 |
| JPH11183927A (ja) * | 1997-12-22 | 1999-07-09 | Sharp Corp | 液晶表示装置の製造方法 |
| JP3873478B2 (ja) * | 1997-12-25 | 2007-01-24 | セイコーエプソン株式会社 | 液晶表示装置、電子機器及び液晶表示装置の製造方法 |
| US6459467B1 (en) * | 1998-05-15 | 2002-10-01 | Minolta Co., Ltd. | Liquid crystal light modulating device, and a manufacturing method and a manufacturing apparatus thereof |
| US6515729B1 (en) * | 1998-07-29 | 2003-02-04 | Citizen Watch Co., Ltd. | Reflection-type color liquid crystal display device |
| US20020001056A1 (en) * | 2000-04-05 | 2002-01-03 | Edmund Sandberg | Reflective microdisplay for light engine based video projection applictions |
-
1999
- 1999-08-11 WO PCT/JP1999/004364 patent/WO2000013059A1/ja not_active Ceased
- 1999-08-11 KR KR10-2000-7004531A patent/KR100516656B1/ko not_active Expired - Lifetime
- 1999-08-11 JP JP2000567986A patent/JP3503597B2/ja not_active Expired - Lifetime
- 1999-08-11 CN CNB998014524A patent/CN1179237C/zh not_active Expired - Lifetime
- 1999-08-11 US US09/530,122 patent/US6989879B1/en not_active Expired - Lifetime
- 1999-08-27 TW TW088114750A patent/TW498176B/zh not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238948A (en) * | 1975-09-23 | 1977-03-25 | Sharp Corp | Liquid crystal cell for display |
| JPS59174820A (ja) * | 1983-03-24 | 1984-10-03 | Sharp Corp | 液晶表示素子 |
| JPS60181730A (ja) * | 1984-02-29 | 1985-09-17 | Toshiba Corp | 液晶表示器 |
| JPS62269119A (ja) * | 1986-05-16 | 1987-11-21 | Stanley Electric Co Ltd | 液晶表示素子 |
| JPS62269934A (ja) * | 1986-05-19 | 1987-11-24 | Stanley Electric Co Ltd | 液晶表示素子の製造方法 |
| JPH0470811A (ja) * | 1990-07-12 | 1992-03-05 | Seiko Epson Corp | 電気光学装置および電気光学装置の製造方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6037070B1 (ja) * | 2016-02-22 | 2016-11-30 | 大日本印刷株式会社 | 調光セル |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1179237C (zh) | 2004-12-08 |
| CN1275215A (zh) | 2000-11-29 |
| JP3503597B2 (ja) | 2004-03-08 |
| KR20010031494A (ko) | 2001-04-16 |
| KR100516656B1 (ko) | 2005-09-22 |
| TW498176B (en) | 2002-08-11 |
| US6989879B1 (en) | 2006-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2000013059A1 (fr) | Panneau a cristaux liquides et procede de fabrication de celui-ci | |
| JP4697248B2 (ja) | フレキシブル基板の接続構造、電気光学装置及び電子機器 | |
| JPWO2000013059A1 (ja) | 液晶パネルおよびその製造方法 | |
| KR101051779B1 (ko) | 액정표시장치 및 액정 표시 패널 | |
| JP4475829B2 (ja) | 半導体装置の実装構造、電気光学装置及び電子機器 | |
| JP3636193B2 (ja) | 液晶パネル及び液晶パネルの製造方法 | |
| JPH09101533A (ja) | 液晶表示装置 | |
| JP3861530B2 (ja) | 液晶表示装置の製造方法 | |
| JP2001125116A (ja) | 液晶パネルおよびその製造方法 | |
| JP4474770B2 (ja) | 電気光学装置および電子機器 | |
| WO2000028373A1 (en) | Liquid crystal display device | |
| JP4061758B2 (ja) | 表示装置、表示装置の製造方法及び電子機器 | |
| JP3659176B2 (ja) | 半導体装置の実装構造、電気光学装置、液晶装置及び電子機器 | |
| JP4136119B2 (ja) | 液晶表示パネル | |
| JP3567933B2 (ja) | 液晶装置、液晶装置の製造方法及び電子機器 | |
| JP2006091622A (ja) | 電気光学装置、電気光学装置の製造方法、および、電子機器 | |
| JP2001005020A (ja) | 液晶表示パネルの電極端子接続構造 | |
| JPH0894985A (ja) | 液晶表示素子の製法 | |
| JP3598921B2 (ja) | Ic実装構造の製造方法及び電気光学装置の製造方法、並びに電気光学装置 | |
| JP2019003008A (ja) | 液晶表示装置 | |
| KR100831299B1 (ko) | 액정표시소자 및 그 제조방법 | |
| JPH0561028A (ja) | 液晶表示素子 | |
| JP3088514B2 (ja) | Icカード用液晶表示装置 | |
| JP2007010706A (ja) | 液晶装置及びその製造方法 | |
| JP2008262168A (ja) | 電気光学装置及び電子機器 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 99801452.4 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN JP KR US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09530122 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020007004531 Country of ref document: KR |
|
| WWP | Wipo information: published in national office |
Ref document number: 1020007004531 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1020007004531 Country of ref document: KR |