JPH1185057A - Color liquid crystal panel and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color liquid crystal panel with which improvement in the bonding accuracy for embodying the liquid crystal panel of a high aperture ratio may be attained and a process for producing the same. SOLUTION: Electrode wires including scanning lines 11 and signal lines intersecting with a sealing material 24 for sealing of liquid crystal have apertures 30 in the parts intersecting with this sealing material 24. The electrode wires are otherwise formed of transparent conductive layers in the parts where the electrode wires intersect with the sealing material 24. Or the electrode wires have the apertures in the parts where the electrode wires intersect with the sealing material 24 and the transparent conductive layers are laminated in the regions inclusive of the apertures. The sealing resin is nearly completely cured by irradiation with UV rays from the outside surface of an active matrix substrate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a liquid crystal panel having a color image display function and a method of manufacturing the same.

[0002]

2. Description of the Related Art Recent advances in microfabrication technology, liquid crystal material technology, packaging technology, and the like have provided television images and various types of image displays on a commercial basis with practically no problem using a liquid crystal panel of 5 to 50 cm diagonal. ing. Further, by forming an RGB colored layer on one of the two glass substrates constituting the liquid crystal panel, color display is easily realized. In particular, an active matrix type liquid crystal panel in which a switching element is built in each pixel guarantees an image having little crosstalk, a high-speed response, and a high contrast ratio. The matrix configuration of such a liquid crystal panel has 100 to 1000 scanning lines and 200 signal lines.
In general, about 2,000 lines are used, but recently, the enlargement of the screen and the increase in the definition have been progressing simultaneously.

FIG. 6 is a conceptual diagram showing a schematic structure of a liquid crystal panel. A scanning line electrode terminal group 6 is formed on one of the transparent insulating substrates constituting the liquid crystal panel 1, for example, a glass substrate 2. A COG in which a semiconductor integrated circuit chip 3 for generating an operation signal from a drive signal is mounted on a glass substrate 2
There is also a (Chip-On-Glass) method. Although both mounting methods are shown in FIG. 6, either one method is actually selected.

With respect to the signal electrodes, a signal line terminal group 5 is formed on the glass substrate 2, and a connection film 4 in which, for example, a copper wire and a gold plated terminal are formed on a base of a polyimide resin thin film is formed via a conductive adhesive. It is connected to and fixed to the signal line terminal group 5 (TCP method). This signal electrode can also adopt the above-mentioned COG method. Thus, the scanning signal and the display data signal are supplied to the image display unit. In FIG. 6, wiring paths 7 and 8 connecting the image display section of the liquid crystal panel 1 to the electrode terminals 5 and 6 for the signal lines and the scanning lines are not necessarily formed of the same material as the electrode terminals 5 and 6. do not have to.

A glass substrate 9 which is a transparent insulating substrate disposed in parallel with the glass substrate 2 has a transparent conductive counter electrode common to all liquid crystal cells. The two glass substrates 2 and 9 constituting the liquid crystal panel 1 are arranged in parallel at a distance of about several μm by a spacer material such as resin fibers or beads, and the gap (gap) is smaller. At the periphery of the substrate 9, the substrate 9 is sealed with a sealing material made of an organic resin and a sealing material to form a closed space.
This closed space is filled with liquid crystal.

In a liquid crystal display panel for performing color display, an organic thin film having a thickness of about 1 to 2 μm containing one or both of a dye and a pigment is formed on the closed space side of the glass substrate 9. This organic thin film is called a coloring layer, and the glass substrate 9 including the coloring layer is called a color filter substrate. Further, depending on the type (property) of the liquid crystal material, a polarizing plate is attached to one or both of the upper surface of the glass substrate 9 and the lower surface of the glass substrate 2.

FIG. 7 is an equivalent circuit diagram of an active matrix liquid crystal panel in which insulated gate thin film transistors (hereinafter, referred to as TFTs) as switching elements are arranged for each pixel. Elements and wiring drawn by solid lines are arranged on one glass substrate (active matrix substrate) 2, and elements and wiring drawn by broken lines are formed on the other glass substrate (color filter substrate) 9. . TFT
Numeral 10 is formed on the active matrix substrate 2 using, for example, amorphous silicon as a semiconductor layer and a silicon nitride layer as a gate insulating layer.
Are also formed on the active matrix substrate 2.

The liquid crystal cell 13 includes a transparent conductive pixel electrode 14 formed on the active matrix substrate 2 and a transparent conductive counter electrode 1 formed on the color filter substrate 9.
5 and a liquid crystal 16 that fills a closed space sandwiched between the two glass substrates 2 and 9 and has a predetermined capacitance (pixel capacitance).
Having. There are several variations in the configuration of the storage capacitance (auxiliary capacitance) added to the pixel capacitance to increase the time constant of the liquid crystal cell 13. In the example of FIG. 7, a storage capacitor 17 is formed in a portion where a common electrode 18 common to all pixels and each pixel electrode 14 face each other via an insulating layer such as a gate insulating layer of a TFT.

A recently developed IPS (In-Plai) having a wide viewing angle has been developed.
In an n-switching type liquid crystal panel, as shown in FIG. 8, a pixel electrode 42 and a counter electrode 41 constituting a liquid crystal cell are arranged on the active matrix substrate 2 at predetermined intervals. Usually, the pixel electrode 42 and the counter electrode 41 are formed in a pair of comb shapes. The pixel electrode 42 can be connected to the drain of the insulated gate transistor to form an active matrix, but the details are omitted. Reference numeral 43 denotes an arrangement state of liquid crystal molecules in the liquid crystal cell.
8A shows a state where no voltage is applied between the pixel electrode 42 and the counter electrode 41, and FIG. 8B shows a state where a voltage is applied.

FIG. 9 is a sectional view of a main part of a liquid crystal panel for color display. The colored layer 19 made of dyed photosensitive gelatin or colored photosensitive resin is arranged on the closed space side of the color filter substrate 9 according to a predetermined arrangement of the three primary colors of RGB so as to correspond to the pixel electrodes 14. The counter electrode 15 common to all the pixel electrodes 14 is formed on the coloring layer 19 in order to avoid a voltage distribution loss in the liquid crystal cell due to the interposition of the coloring layer 19. An alignment film 20 is formed on the two glass substrates 2 and 9 so as to be in contact with the liquid crystal 16. This is a polyimide resin layer having a thickness of, for example, about 0.1 μm, and has a function of aligning liquid crystal molecules in a predetermined direction. In addition, a twisted nematic (T
When the N) type is used, two upper and lower polarizing plates 21 are required.

An opaque film 22, called a black matrix (BM), which hardly reflects light is disposed on the boundary between the RGB colored layers 19. This black matrix 22
Is to improve the contrast of an image by blocking reflected light from a wiring layer such as the signal line 12 on the active matrix substrate 2 and to prevent an increase in leak current due to external light of a TFT serving as a switching element to prevent strong external light. It has the function of enabling the liquid crystal panel to operate even below.

Although the black matrix has various configurations, it is disadvantageous in terms of cost in consideration of the occurrence of a step at the boundary between adjacent colored layers and light transmittance, but it is disadvantageous in terms of cost.
It is convenient and reasonable to use a Cr thin film having a thickness of about μm.

In FIG. 9, components such as a TFT, a scanning line, a storage capacitor, a back light source, and a spacer are not shown. Reference numeral 23 denotes a conductive thin film for connecting the pixel electrode 14 and the drain of the TFT 10, and is usually formed simultaneously with the same material as the signal line 12 and is called a drain wiring. The counter electrode 15 is connected to an appropriate conductive pattern on the active matrix substrate 2 via a conductive paste outside the image display unit, and is connected to one of the electrode terminal groups 5 and 6 in FIG.

FIG. 10 is a plan view of the periphery of the scanning line at the periphery of the liquid crystal panel (a view from the glass panel 2 side).
Is shown. FIG. 11 is a cross-sectional view corresponding to the line AA ′ in FIG. The active matrix substrate 2 and the color filter substrate 9 are sealed with an adhesive sealing material (resin) 24. The width of the sealing material 24 is 0.5 to 1.2.
mm, and the height is several μm corresponding to the gap of the liquid crystal cell. Such a sealing material can be efficiently formed by screen printing in a small liquid crystal panel. In a large-sized liquid crystal panel, a seal drawing machine is used so that foreign matter is not transferred.

In FIGS. 10 and 11, which show the periphery of the periphery of the liquid crystal panel where the sealing material is disposed, the scanning line 1 is shown.
One terminal electrode 6 is formed simultaneously with the source / drain wirings 12 and 23 in an opening 26 formed in a silicon nitride layer (SiNx) 25 which is a gate insulating layer having a thickness of about 0.3 μm. The terminal electrode 6 is exposed by an opening 28 formed in a passivation insulating layer 27 made of a silicon nitride layer having a thickness of about 0.3 μm. Further, in order to prevent unnecessary light from leaking from the back surface when the liquid crystal panel is viewed obliquely, a predetermined number or more of the colored layers 19 'and the black matrix 22' are arranged around the image display section. ing.

[0016]

In the latest liquid crystal panels, the frame is often narrowed. That is, the area outside the image display unit is designed to be as small as possible, so that the weight and size of the display device can be reduced. Therefore, the sealing material 24 is arranged as close as possible to the image display unit. As a result, as shown in FIG. 11, the black matrix 22 'has to be arranged on the sealing material 24.

[0017] Further, even in a large panel having a diagonal width of 25 cm or more, high definition is attempted to improve display capacity and display image quality, and it is also required to secure an aperture ratio. As a result, it has become important to reduce the width of the black matrix and to improve the bonding accuracy of the two substrates 2 and 9 constituting the liquid crystal panel. That is, in the past, a bonding accuracy of about several μm was sufficient, but in order to increase the aperture ratio to 80% or more, high accuracy of 2 μm or less has come to be required.

The bonding accuracy of the liquid crystal panel is determined by the sum of the processing accuracy of the active matrix substrate and the color filter substrate and the bonding accuracy of the two substrates in the bonding process. Therefore, the larger the liquid crystal panel, that is, the larger the glass substrate, the greater the warpage and undulation of the glass substrate, so that the accuracy is reduced.

It is not so difficult to keep the bonding accuracy within 1-2 μm in view of the mechanism and ability of a high-precision exposure machine for large substrates. However, due to the warpage of the glass substrate in the curing process of the seal 24, the accuracy that can be practically secured is reduced to several μm at present.

Of particular importance in the curing process is temperature uniformity. The expansion coefficient of the glass substrate is several pp / ° C.
m, for example, if there is a temperature difference of 10 ° C., 30c
In the case of a glass substrate having a size of m, a difference in expansion and contraction of 10 to 20 μm occurs. For this reason, gradual heating and gradual cooling are indispensable for heating and cooling in the curing step, but it is necessary to reduce the time required for heating and cooling in order to improve productivity.

Therefore, it has been considered that the thermosetting of the sealing material is performed at a low temperature of about 100 ° C., but generally the lower the curing temperature, the lower the hermeticity and adhesion. Further, it is inevitable that the residual solvent in the sealing material dissolves in the liquid crystal, the retention of the liquid crystal cell is reduced, and the display characteristics of the liquid crystal panel in high-temperature operation and long-time operation are degraded.

On the other hand, when an ultraviolet-curable sealing resin that does not require heating is employed, a light-shielding black matrix 22 ′ is provided between the color filter substrate 9 and the sealing resin 24 as shown in FIGS. Because of the interposition, ultraviolet rays for curing the seal resin 24 cannot be irradiated from the outer surface of the color filter substrate 9, and must be irradiated from the outer surface of the active matrix substrate 2.

However, the electrode lines of the scanning lines 11 and the signal lines 12 are partially interposed between the active matrix substrate 2 and the sealing resin 24. These electrode wires generally use a metal thin film to reduce the resistance value, and are opaque to ultraviolet rays. Since the pattern width of the electrode wire is at least 20 μm, it is impossible to completely cure the sealing resin 24 at the portion blocked by the electrode wire, even if it is taken into consideration that ultraviolet rays may flow from the periphery of the electrode wire.
In this case, a liquid crystal panel having a low sealing reliability is obtained even though the bonding accuracy is high. On the other hand, if an ultraviolet-curable seal resin and a thermosetting seal resin are used together, the reliability of the seal is increased, but the bonding accuracy is reduced by heating as in the related art.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and provides a color liquid crystal panel and a method of manufacturing the same that can improve the bonding accuracy for realizing a liquid crystal panel having a high aperture ratio. The purpose is to provide.

[0025]

According to a first structure of a liquid crystal panel according to the present invention, an electrode line including a scanning line and a signal line intersecting a sealing material for sealing a liquid crystal intersects the sealing material. Characterized by having an opening. According to such a configuration, when ultraviolet light is irradiated from the outer surface of the active matrix substrate, the ultraviolet light passing through the opening provided in the light-shielding electrode wire and the ultraviolet light circulating from the opening cause a portion of the active matrix substrate to intersect with the electrode wire. The sealing material can be almost completely cured. Therefore, it is possible to lower the temperature of the seal hardening step and improve the bonding accuracy.

The second structure of the liquid crystal panel according to the present invention is as follows.
An electrode line including a scan line and a signal line intersecting with a sealant for sealing liquid crystal is formed of a transparent conductive layer in a portion intersecting with the sealant. According to such a configuration, when ultraviolet rays are radiated from the outer surface of the active matrix substrate, the ultraviolet rays passing through the portions formed of the transparent conductive layers of the electrode wires substantially cause the sealing material at the portions that intersect the electrode wires to substantially close. Can be completely cured.

The third structure of the liquid crystal panel according to the present invention is as follows.
An electrode line including a scanning line and a signal line intersecting with a sealant for sealing a liquid crystal has an opening in a portion intersecting with the sealant, and a transparent conductive layer is stacked in a region including the opening. It is characterized by the following. According to such a configuration, when ultraviolet light is irradiated from the outer surface of the active matrix substrate, the ultraviolet light passing through the opening formed in the electrode wire and the portion formed by the transparent conductive layer causes the sealing material to intersect with the electrode wire. Can be cured almost completely. Further, it is possible to reduce the temperature of the seal hardening step while compensating for the increase in electric resistance due to the provision of the openings in the electrode wires by laminating the transparent conductive layers.

The above-described first configuration, that is, the configuration in which an opening is provided in the electrode wire at a portion that intersects with the sealing material is IPS (I
It can also be applied to liquid crystal panels of the n-Plain-Switching type.
Regarding the second or third configuration, that is, the configuration in which the electrode wire in the portion intersecting with the sealing material is formed of a transparent conductive layer, or the configuration in which an opening is provided in the electrode wire and the transparent conductive layer is laminated, the IPS is also used. Although it can be applied to a liquid crystal panel of a system, it is not practical because the number of steps for forming a dedicated transparent conductive layer increases.

In the method according to the present invention for manufacturing a liquid crystal panel having the above-described configurations, when the active matrix substrate and the color filter substrate are bonded to each other using a sealing material, an ultraviolet-curable resin is used as the sealing material. The method is characterized in that the sealing material is cured by irradiating ultraviolet rays from the outer surface of the active matrix substrate.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a liquid crystal panel according to an embodiment of the present invention will be described focusing on differences from the structure of the liquid crystal panel described in the prior art.

First, in the first embodiment shown in FIG. 1, an opening 30 is formed in the pattern of the scanning line 11 in a region where the scanning line 11 which is an electrode line intersects the sealing resin 24. In this manner, when viewed from the outer surface of the transparent glass substrate (active matrix substrate) 2, most of the area of the sealing resin 24 can be seen without being blocked by the pattern of the scanning lines 11. Therefore, when ultraviolet light is irradiated from the outer surface of the active matrix substrate 2, the opening 30
Due to the ultraviolet rays passing through and around the opening 30, the sealing resin 24 can be almost completely cured even at the portion intersecting the scanning line pattern.

Similarly, by forming an opening in the signal line pattern at a portion where the signal line pattern and the sealing resin 24 intersect, the sealing resin 24 is almost completely illuminated by ultraviolet rays irradiated from the outer surface of the active matrix substrate 2. Can be cured.

When an opening is provided in the electrode wire pattern, the electric resistance of the electrode wire in that region increases. Therefore, sufficient consideration must be given to the size of the opening. FIG.
As shown in (1), an increase in electrical resistance can be avoided by providing a plurality of openings or increasing the pattern width of the openings. Further, by setting the irradiation time of the ultraviolet ray to be long and effectively using the diffracted light from the periphery of the opening, the sealing resin 24 can be almost completely cured while compensating for the small opening.

Next, a second embodiment of the present invention is shown in FIGS. FIG. 2 is a plan view seen from the outer surface of the active matrix substrate 2, and FIG. 3 is a cross-sectional view corresponding to line AA 'in FIG. In this embodiment, in a region where the signal line 12 as an electrode line intersects with the sealing resin 24,
Prior to the formation of the signal line 12, a transparent conductive connection pattern 31 is formed on the transparent insulating layer 25 simultaneously with the formation of the pixel electrode. Then, the divided signal lines 12 are formed so as to be connected to both end portions of the connection pattern 31.

Since the signal line in the region intersecting with the sealing resin 24 is formed by the transparent conductive connection pattern 31,
When the back surface of the active matrix substrate 2 is irradiated with ultraviolet light, the ultraviolet light transmitted through the transparent connection pattern 31 can almost completely cure the sealing resin even at a portion intersecting the signal line.

Similarly, in a portion where the scanning line pattern intersects with the sealing resin 24, the scanning line made of a light-shielding material is partially formed of a transparent conductive layer so that the active matrix substrate 2 is irradiated from the outer surface. The seal resin 24 can be almost completely cured by the ultraviolet rays. Of course, an opening is formed in the insulating layer 25 prior to the formation of the transparent conductive connection pattern, for example, similarly to the formation of the terminal electrode 6 so that the transparent conductive connection pattern and the scanning line are electrically connected. It is necessary to form and expose a part of the scanning line.

Next, a third embodiment of the present invention is shown in FIGS. FIG. 4 is a plan view seen from the outer surface of the active matrix substrate 2, and FIG. 5 is a cross-sectional view corresponding to line AA 'in FIG. In this embodiment, in a region where the signal line 12 as an electrode line intersects with the sealing resin 24,
Prior to the formation of the signal line 12, a transparent conductive connection pattern 31 is formed on the transparent insulating layer 25 on the transparent base simultaneously with the formation of the pixel electrode 14. After that, the signal line 12 having the opening 30 is formed so as to cover the connection pattern 31.

In a region intersecting with the sealing resin 24,
Since the signal line 12 is laminated with the transparent conductive connection pattern 31 and the signal line 12 having an opening, when the ultraviolet light is irradiated from the back surface of the active matrix substrate 2, the ultraviolet light transmitted through the transparent connection pattern 31, Due to the ultraviolet light transmitted through the opening 30 and the ultraviolet light circulating from the periphery of the opening 30, the sealing resin can be almost completely cured even at a portion intersecting the signal line.

Similarly, at the intersection of the scanning line pattern and the sealing resin 24, the opening of the scanning line made of a light-shielding material is provided and the transparent conductive layer is partially used together to form the active matrix substrate 2. The sealing resin can be completely cured by the ultraviolet rays radiated from the outer surface. This embodiment is suitable for a large-sized liquid crystal panel because an increase in electric resistance caused by providing an opening in an electrode wire can be compensated for by using (stacking) a transparent conductive connection pattern.

As a fourth embodiment, the present invention is applied to an IPS (I
It can also be applied to (n-Plain-Switching) type color LCD panels. As described above, in the IPS type liquid crystal panel, both the pixel electrode and the counter electrode constituting the liquid crystal cell are formed on the active matrix substrate, and the transparent conductive layer is unnecessary. Therefore, applying the above-described second and third embodiments to an IPS-type liquid crystal panel requires a step of forming a transparent conductive layer.
It is not desirable in terms of cost. However, as in the first embodiment described above, the configuration in which an opening is formed in the electrode wire at a portion that intersects with the ultraviolet-curable sealing resin can be easily applied to an IPS-type liquid crystal panel. In this case, the same effect can be obtained.

In each of the above embodiments, there is no particular limitation on the configuration or material of the switching element such as an insulated gate transistor and the configuration or material of the scanning line and the signal line, which are the electrode lines. In the second or third embodiment, the order of forming the transparent conductive layer and the electrode lines may be reversed.

[0042]

As described above, according to the present invention, an ultraviolet curable resin is used as a sealing material for sealing the active matrix substrate and the color filter substrate, and ultraviolet rays are emitted from the outer surface of the active matrix substrate. Irradiation can cure the sealing material almost completely. As a result, it is possible to achieve both an improvement in bonding accuracy and an improvement in sealing quality by lowering the temperature of the panel forming process, and a liquid crystal panel having a high aperture ratio and high reliability can be obtained.

[Brief description of the drawings]

FIG. 1 is a layout view of an electrode pattern on a scanning line side of an active matrix matrix substrate according to a first embodiment of the present invention.

FIG. 2 is a layout view of an electrode pattern on a signal line side of an active matrix substrate according to a second embodiment of the present invention.

FIG. 3 is a sectional view corresponding to the line AA ′ in FIG. 2;

FIG. 4 is a layout view of an electrode pattern on a signal line side of an active matrix substrate according to a third embodiment of the present invention.

FIG. 5 is a sectional view corresponding to the line AA ′ in FIG. 4;

FIG. 6 is a perspective view showing a mounting state of a conventional liquid crystal panel.

FIG. 7 is an equivalent circuit diagram of a conventional active matrix type liquid crystal panel.

FIG. 8 is a perspective view showing a conceptual diagram of a conventional IPS type liquid crystal cell.

FIG. 9 is a sectional view of a main part of a conventional active matrix type liquid crystal panel.

FIG. 10 is a layout view of an electrode pattern on a scanning line side of an active matrix substrate using a conventional liquid crystal panel.

11 is a sectional view corresponding to the line AA ′ in FIG.

[Explanation of symbols]

Reference Signs List 2 Active matrix substrate 9 Color filter substrate 11 Scanning line 12 Signal line 24 Sealing material 25 Insulating layer 26 Opening formed in insulating layer 27 Passivation insulating layer 28 Opening formed in passivating insulating layer 30 Formed in electrode line Opening 31 Transparent conductive connection pattern partially forming electrode line

Claims (8)

[Claims] 1. A plurality of scanning lines and a plurality of signal lines substantially orthogonal to the scanning lines via an insulating layer are provided on a transparent insulating substrate, and a switching element is provided at each intersection of the scanning lines and the signal lines. A liquid crystal comprising: an active matrix substrate provided with a transparent pixel electrode; a color filter substrate having a transparent conductive layer and facing the active matrix substrate; and a liquid crystal filled between the active matrix substrate and the color filter substrate. In the panel, the electrode line including the scanning line and the signal line that intersects with a sealant for sealing the liquid crystal has an opening at a portion that intersects with the sealant. 2. The method for manufacturing a liquid crystal panel according to claim 1, wherein when the active matrix substrate and the color filter substrate are bonded to each other using the sealing material, an ultraviolet curing resin is used as the sealing material. Use
A method of manufacturing a liquid crystal panel, comprising irradiating ultraviolet rays from an outer surface of the active matrix substrate to cure the sealing material. 3. A plurality of scanning lines and a plurality of signal lines that are substantially orthogonal to the scanning lines via an insulating layer are provided on a transparent insulating substrate, and a switching element is provided at each intersection of the scanning lines and the signal lines. An active matrix substrate provided with a transparent pixel electrode, a color filter substrate having a transparent conductive layer and facing the active matrix substrate, and a liquid crystal filled between the active matrix substrate and the color filter substrate. In the liquid crystal panel provided, an electrode line including the scanning line and the signal line intersecting with a sealant for sealing the liquid crystal is formed of a transparent conductive layer at a portion intersecting with the sealant. Color liquid crystal panel. 4. The method of manufacturing a liquid crystal panel according to claim 3, wherein when bonding the active matrix substrate and the color filter substrate using the sealing material, an ultraviolet-curable resin is used as the sealing material. Use
A method of manufacturing a liquid crystal panel, comprising irradiating ultraviolet rays from an outer surface of the active matrix substrate to cure the sealing material. 5. A plurality of scanning lines and a plurality of signal lines substantially orthogonal to the scanning lines via an insulating layer are provided on a transparent insulating substrate, and a switching element and a switching element are provided at each intersection of the scanning lines and the signal lines. A liquid crystal comprising: an active matrix substrate provided with a transparent pixel electrode; a color filter substrate having a transparent conductive layer and facing the active matrix substrate; and a liquid crystal filled between the active matrix substrate and the color filter substrate. In the panel, the electrode line including the scanning line and the signal line that intersects with a sealant for sealing the liquid crystal has an opening at a portion that intersects with the sealant, and is transparent in a region including the opening. A color liquid crystal panel having a conductive layer laminated thereon. 6. The method for manufacturing a liquid crystal panel according to claim 5, wherein when the active matrix substrate and the color filter substrate are bonded to each other using the sealing material, an ultraviolet curing resin is used as the sealing material. Use
A method of manufacturing a liquid crystal panel, comprising irradiating ultraviolet rays from an outer surface of the active matrix substrate to cure the sealing material. 7. A plurality of scanning lines and a plurality of signal lines substantially orthogonal to the scanning lines via an insulating layer are provided on a transparent insulating substrate, and a switching element is provided at each intersection of the scanning lines and the signal lines. An active matrix substrate having pixel electrodes and counter electrodes arranged at predetermined intervals; a color filter substrate facing the active matrix substrate; and a liquid crystal filled between the active matrix substrate and the color filter substrate. In the liquid crystal panel provided, a color liquid crystal characterized in that an electrode line including the scanning line and the signal line intersecting with a sealing material for sealing the liquid crystal has an opening at a portion intersecting with the sealing material. panel. 8. The method for manufacturing a liquid crystal panel according to claim 7, wherein when the active matrix substrate and the color filter substrate are bonded to each other using the sealing material, an ultraviolet-curable resin is used for the sealing material. And irradiating ultraviolet rays from the outer surface of the active matrix substrate to cure the sealing material.