JP2003066480A - Liquid crystal device, method of manufacturing liquid crystal device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal device which facilitates the adjustment of a cell thickness and has a high display grade, a method of manufacturing the liquid crystal device and an electronic apparatus. SOLUTION: Films having color filters 12 are arranged in wiring regions which are regions enclosed by sealing materials 3 and are arranged with wiring, such as second wiring 19b, etc., and therefore the deposition state in the regions enclosed by the sealing materials of a first electrode substrate 2a can be made nearly the same within the plane. The cell thickness in the display regions and the cell thickness in the wiring region can be easily so adjusted as to be made the same in bonding together the first substrate and the second substrate.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a liquid crystal device. Further, the present invention relates to an electronic device including the liquid crystal device.

[0002]

2. Description of the Related Art In recent years, liquid crystal devices have been widely used as display units for various electronic devices such as mobile phones and personal digital assistants. In this liquid crystal device, generally, a pair of substrates each having an electrode are pasted together with a certain gap, so-called cell gap, so that the electrode surfaces face each other, and the liquid crystal is further enclosed in the cell gap. .
Further, in order to perform color display, a color filter is provided on one of the pair of substrates.

As a liquid crystal device, for example, in a simple matrix type color liquid crystal device which drives liquid crystal without using a switching element, stripe electrodes are formed on each of a pair of substrates and formed on each substrate. The electrodes are arranged so as to intersect each other. In a liquid crystal device, a region where electrodes formed on each substrate overlap with each other functions as a pixel, and an optical characteristic of a liquid crystal sandwiched between opposing electrodes is changed by a potential difference of a voltage applied to each of the opposing electrodes. By doing so, the display is performed. Further, one of the substrates is provided with a color filter for performing color display. For example, the color filter is arranged on the substrate, a flat film is arranged so as to cover the color filter, and the flat film is arranged on the flat film. The electrodes are arranged. Further, in the liquid crystal device, a signal supply system that supplies a signal to the electrodes of each of the two substrates is connected. Conventionally, it suffices to connect the signal supply system to only one of the other substrates by electrically connecting the electrodes formed on the one substrate to the wiring formed on the other substrate through the conductive material. The structure is taken.

Generally, the wiring is formed of the same material as the electrode formed on the substrate, and in many cases, ITO (Indium Tin Oxide) is used as this material.
Is used. However, since the area resistivity of this ITO is higher than that of a general metal, if this ITO is used as a connection wiring in a region other than the display region, the resistance of the wiring becomes high, and the display quality of the liquid crystal device deteriorates. was there.

In order to solve the above-mentioned problems, the applicant of the present application has disclosed in Japanese Patent Application No. 2001-117251 that a conductive film having a wiring resistance other than ITO, which is lower than that of ITO, is laminated on the film forming the wiring to improve the wiring resistance. By lowering and further providing a part or all of this conductive film so as to be located in a region surrounded by a sealant, the conductive film is prevented from coming into contact with the outside air and the wiring having the conductive film is prevented from corroding. I proposed a technology to prevent it.

[0006]

However, in the liquid crystal device in Japanese Patent Application No. 2001-117251, since the color filter and the flat film are not formed in the area where the wiring is formed, the area where the wiring is formed. It was difficult to adjust the cell thickness (distance between a pair of substrates) in each of the display regions to be the same. If the cell thickness is different between the area where the wiring is formed and the display area, the area where the wiring is formed is a non-display area, but the display area adjacent to the area where the wiring is formed in the display area. The display characteristics of the portion are different from those of the central portion of the display area, and display unevenness occurs.

The present invention solves the above problems, and an object thereof is to provide a liquid crystal device having a high display quality in which the cell thickness can be easily adjusted, a method of manufacturing the liquid crystal device, and an electronic apparatus.

[0008]

In order to solve the above problems, a liquid crystal device of the present invention is provided with a display area, a wiring area adjacent to the display area, and a sealing material surrounding the display area and the wiring area. A liquid crystal device having a first substrate and a second substrate which are attached to each other via the sealing material, the liquid crystal device being disposed in the display region and the wiring region on the first substrate. A film having a color filter, a first electrode arranged in the display region on the film having the color filter, a second electrode arranged in the display region on the second substrate, and the first substrate A second wiring electrically connected to the second electrode arranged in the upper wiring region.

According to such a structure of the present invention, since the film having the color filter is arranged in the wiring region in which the second wiring is arranged, in the region surrounded by the sealing material of the first substrate. The film formation state can be made substantially the same in the plane, and when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the wiring region can be easily adjusted to be the same. You can Therefore,
It is possible to obtain a liquid crystal device having a cell thickness that is substantially uniform in the plane of the substrate, and it is possible to obtain a liquid crystal device with high display quality without display unevenness.

Further, another liquid crystal device of the present invention has a display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. A liquid crystal device comprising a first substrate and a second substrate which are attached to each other via a sealing material, the film having a color filter arranged in the display region and the wiring region on the second substrate, A second substrate disposed on the display area on the film having the color filter on the second substrate;
An electrode, a first electrode arranged in the display region on the first substrate, and a second wiring electrically connected to the second electrode arranged in the wiring region on the first substrate. It is characterized by doing.

According to such a configuration of the present invention, since the film having the color filter is arranged in the wiring region in which the second wiring is arranged, in the region surrounded by the sealing material of the first substrate. The film formation state can be made substantially the same in the plane, and when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the wiring region can be easily adjusted to be the same. You can Therefore,
It is possible to obtain a liquid crystal device having a cell thickness that is substantially uniform in the plane of the substrate, and it is possible to obtain a liquid crystal device with high display quality without display unevenness.

Further, the present invention is characterized by further comprising a first wiring electrically connected to the first electrode arranged in the wiring region on the first substrate. By arranging the film having the color filter also in the region where the first wiring is arranged, the cell thickness in the display region and the cell thickness in the wiring region can be improved when the first substrate and the second substrate are bonded together. Can be adjusted to more easily match. Therefore, it is possible to obtain a liquid crystal device having a substantially uniform cell thickness within the substrate surface, and it is possible to obtain a liquid crystal device having high display quality without display unevenness.

The film having the color filter is
A color filter and a flattening film that covers the color filter are provided. As such a film having a color filter, a film in which a color filter and a flattening film which covers the color filter are stacked can be used.

The film having the color filter is
It is characterized in that it is arranged in a region surrounded by the seal region. With such a configuration, when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the region surrounded by the seal region but not the display region can be easily equalized. Can be adjusted to Therefore, it is possible to obtain a liquid crystal device having a substantially uniform cell thickness within the substrate surface, and it is possible to obtain a liquid crystal device having high display quality without display unevenness.

Further, the second wiring has a conductive film having a resistance lower than that of the first electrode. With such a configuration, the wiring is formed by the conductive film having a resistance lower than that of the first electrode, so that the wiring resistance can be reduced and the display quality can be maintained high.

Further, the second wiring has a laminated film of a conductive film in the same layer as the first electrode and a conductive film having a resistance lower than that of the first electrode. in this way,
By forming the second wiring as a laminated film, for example, even if a short-circuit defect occurs in one conductive film, the other conductive film can be electrically connected.

Further, the conductive film which is the same layer as the first electrode is an ITO film, and the conductive film having a resistance lower than that of the first electrode is silver alone or an alloy containing silver.
Thus, as the second wiring, a laminated film of the ITO film and silver alone or an alloy containing silver can be used. As an alloy containing silver, for example, Ag98%, Pd1%, Cu1
%, An APC alloy that is an alloy containing 100% can be used.

A third wiring electrically connecting to the second electrode is disposed on the second substrate so as to extend over the wiring area and the sealing area, and the second wiring extends to the sealing area. It is characterized in that the third wiring and the second wiring extend and are electrically connected to each other through a conductive material arranged in the seal region. With such a configuration, the second wiring arranged in the seal region does not come into contact with the outside air. Therefore, when a low resistance conductive film is used for at least a part of the second wiring, the conductive film may be corroded. It can be prevented.

Still another liquid crystal device of the present invention has a display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. 1st pasted together through the said sealing material
A liquid crystal device comprising a substrate and a second substrate, the film having a color filter disposed in the display region and the wiring region on the first substrate, and the display region on the film having the color filter. A pixel electrode disposed on the first substrate, a TFD element having a laminated structure of a first metal film / an insulating film / a second metal film that is electrically connected to the pixel electrode disposed on the first substrate, and a TFD element on the first substrate. A line wiring electrically connected to the pixel electrode via the arranged TFD element,
The stripe-shaped second electrode facing the pixel electrode arranged in the display region on the second substrate and the second electrode arranged in the wiring region on the first substrate are electrically connected. And a second wiring.

According to such a structure of the present invention, since the film having the color filter is arranged in the wiring region where the second wiring is arranged, the region surrounded by the sealing material of the first substrate is arranged. The film formation state can be made substantially the same in the plane, and when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the wiring region can be easily adjusted to be the same. You can Therefore,
It is possible to obtain a liquid crystal device having a cell thickness that is substantially uniform in the plane of the substrate, and it is possible to obtain a liquid crystal device with high display quality without display unevenness.

Still another liquid crystal device of the present invention has a display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. 1st pasted together through the said sealing material
A liquid crystal device comprising a substrate and a second substrate, comprising: a film having a color filter disposed in the display region and the wiring region on the second substrate; and the color filter on the second substrate. A stripe-shaped second electrode arranged in the display region on the film, a pixel electrode arranged opposite to the second electrode arranged in the display region on the first substrate, and on the first substrate A TFD element having a laminated structure of a first metal film / insulating film / second metal film, which is electrically connected to each of the arranged pixel electrodes, and the TFD element arranged on the first substrate.
A line wiring electrically connected to the pixel electrode via an FD element; and a second wiring electrically connected to the second electrode arranged in the wiring region on the first substrate. Is characterized by.

According to such a configuration of the present invention, since the film having the color filter is arranged in the wiring region where the second wiring is arranged, in the region surrounded by the sealing material of the first substrate. The film formation state can be made substantially the same in the plane, and when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the wiring region can be easily adjusted to be the same. You can Therefore,
It is possible to obtain a liquid crystal device having a cell thickness that is substantially uniform in the plane of the substrate, and it is possible to obtain a liquid crystal device with high display quality without display unevenness.

Further, the present invention is characterized by further comprising a first wiring electrically connected to the line wiring arranged in the wiring area on the first substrate. By arranging the film having the color filter also in the region where the first wiring is arranged, the cell thickness in the display region and the cell thickness in the wiring region can be improved when the first substrate and the second substrate are bonded together. Can be adjusted to more easily match. Therefore, it is possible to obtain a liquid crystal device having a substantially uniform cell thickness within the substrate surface, and it is possible to obtain a liquid crystal device having high display quality without display unevenness.

The film having the color filter is
A color filter and a flat film that covers the color filter are provided. As such a film having a color filter, a film in which a color filter and a flattening film which covers the color filter are stacked can be used.

The film having the color filter is
It is characterized in that it is arranged in a region surrounded by the seal region. With such a configuration, when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the region surrounded by the seal region but not the display region can be easily equalized. Can be adjusted to Therefore, it is possible to obtain a liquid crystal device having a substantially uniform cell thickness within the substrate surface, and it is possible to obtain a liquid crystal device having high display quality without display unevenness.

Further, the second wiring has a laminated film of a conductive film in the same layer as the pixel electrode and a conductive film having a resistance lower than that of the pixel electrode. According to such a configuration, since the wiring is formed by the conductive film having a resistance lower than that of the pixel electrode, it is possible to reduce the wiring resistance and maintain high display quality. Further, by forming the second wiring as a laminated film, for example, even if a short-circuit defect occurs in one conductive film, the other conductive film can be electrically connected.

The conductive film having a resistance lower than that of the pixel electrode is in the same layer as the second electrode forming the TFD element. Thus, as the conductive film having lower resistance than the pixel electrode, a film in the same layer as the second electrode forming the TFD element can be used.

Further, the conductive film which is the same layer as the pixel electrode is made of ITO, and the conductive film having a resistance lower than that of the pixel electrode is made of Cr.

Further, a third wiring is disposed on the second substrate so as to electrically connect to the second electrode across the wiring area and the sealing area, and the second wiring extends to the inside of the sealing area. It is characterized in that the third wiring and the second wiring extend and are electrically connected to each other through a conductive material arranged in the seal region. With such a configuration, the second wiring arranged in the seal region does not come into contact with the outside air. Therefore, when a low resistance conductive film is used for at least a part of the second wiring, the conductive film may be corroded. It can be prevented.

The liquid crystal device manufacturing method of the present invention has a display area, a wiring area adjacent to the display area, and a seal area in which a sealing material surrounding the display area and the wiring area is arranged. A method for manufacturing a liquid crystal device, comprising: a first substrate and a second substrate which are bonded to each other via a material,
Forming a film having a color filter on the display region and the wiring region on the first substrate; forming a first electrode on the display region on the film having the color filter; and the first substrate A step of forming a second wiring in the wiring area above, and a step of forming a second wiring in the display area on the second substrate.
A step of forming an electrode, a step of forming a third wire whose one end is electrically connected to the second electrode in the wiring region on the second substrate, a film having the color filter, the first electrode And applying a sealing material having a conductive material to the sealing area of the first substrate having the second wiring or the second electrode having the second electrode and the third wiring formed thereon, and the sealing. After applying the material, the first substrate and the second substrate are arranged so that the first electrode and the second electrode face each other, and are bonded by the sealing material, and the third wiring is provided through the conductive material. Electrically connecting the other end of the second wiring to the second wiring.

According to this structure of the present invention, since the film having the color filter is arranged in the wiring region where the first wiring and the second wiring are arranged, the film is surrounded by the sealing material of the first substrate. It is possible to make the film formation state in the exposed region substantially the same in the plane, and to easily make the cell thickness in the display region and the cell thickness in the wiring region the same when the first substrate and the second substrate are bonded together. Can be adjusted to. The liquid crystal device obtained by such a manufacturing method has a substantially uniform cell thickness within the surface of the substrate, has no display unevenness, and has high display quality.

Another liquid crystal device manufacturing method of the present invention has a display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. And a method for manufacturing a liquid crystal device comprising a first substrate and a second substrate which are attached to each other via the sealing material, the film having color filters in the display region and the wiring region on the second substrate. A step of forming
Forming a second electrode in the display region on the film having the color filter on the second substrate; and electrically connecting one end to the second electrode in the wiring region on the second substrate. Forming a third wiring; forming a first electrode in the display area on the first substrate; forming a second wiring in the wiring area on the first substrate; A film having the first substrate or the color filter on which an electrode and the second wiring are formed, and a sealing material having a conductive material in the sealing region of the second substrate on which the second electrode and the third wiring are formed. And a step of applying the sealing material, the first substrate and the second substrate are arranged so that the first electrode and the second electrode face each other, and are bonded by the sealing material, and the conduction And the other end of the third wiring through the material A step of connecting the serial second wiring electrically, characterized by including the.

According to this structure of the present invention, since the film having the color filter is arranged in the wiring region where the first wiring and the second wiring are arranged, the film is surrounded by the sealing material of the first substrate. It is possible to make the film formation state in the exposed region substantially the same in the plane, and to easily make the cell thickness in the display region and the cell thickness in the wiring region the same when the first substrate and the second substrate are bonded together. Can be adjusted to. The liquid crystal device obtained by such a manufacturing method has a substantially uniform cell thickness within the surface of the substrate, has no display unevenness, and has high display quality.

The film having the color filter is
A color filter and a flattening film that covers the color filter are provided. Thus, as the film having the color filter, a laminated film including the color filter and the flattening film covering the color filter can be formed.

The film having the color filter is
It is characterized in that it is formed in a region surrounded by the seal region. With such a configuration, when the first substrate and the second substrate are bonded together, the cell thickness in the display region and the cell thickness in the region surrounded by the seal region but not the display region can be easily equalized. Can be adjusted to The liquid crystal device obtained by such a manufacturing method,
It has a cell thickness that is almost uniform in the plane of the substrate, and has high display quality with no display unevenness.

The electronic equipment of the present invention is characterized by having the above-mentioned liquid crystal device and a casing for holding the liquid crystal device. According to such a configuration of the present invention, it is possible to obtain an electronic device having a display screen with high display quality.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) Hereinafter, the present invention will be described with reference to a simple matrix type COG (Chip On Glass).
The case of application to the s) type liquid crystal device will be described with reference to FIGS.

FIG. 1 is a schematic plan view of a liquid crystal device. 2 is a cross-sectional view of the liquid crystal device of FIG. 1 taken along line II-II. FIG. 3 is a cross-sectional view taken along line III-III of the liquid crystal device of FIG. 1 and line III′-III ′ of the liquid crystal device of FIGS. 1 and 4. 4 is an arrow IV of the liquid crystal device of FIG.
It is a top view which expands and shows the wiring part shown by. Figure 5
FIG. 3 is a plan view for explaining a positional relationship among a seal area, a display area, and a wiring area of the liquid crystal device shown in FIG. 1.

As shown in FIG. 5, the liquid crystal device 1 has a display area 104 surrounded by a dotted line and wiring areas 105a and 105b adjacent to the display area 104 and surrounded by a dashed line.
And a non-display area 106 in which wiring is not arranged.
And the display area 104 and the wiring areas 105a and 10
5b, and the seal area 10 in which the seal material 3 surrounding the non-display area 106 in which wiring is not arranged is arranged.
3 (a region where the inside is filled with diagonal lines).

In the liquid crystal device 1, the first electrode substrate 2a arranged on the back side of the drawing and the second electrode substrate 2b arranged on the front side of the drawing are arranged in the seal area 103 and have a substantially rectangular shape. It is formed by sticking together with the sealing material 3.

The region surrounded by the sealing material 3, the first electrode substrate 2a and the second electrode substrate 2b has a constant height,
It constitutes the so-called cell thickness. A liquid crystal injection port 3 a is arranged in a part of the sealing material 3. In the gap between the first electrode substrate 2a and the second electrode substrate 2b, the liquid crystal L is introduced through the liquid crystal injection port 3a.
Is injected, and after the injection is completed, the liquid crystal injection port 3a is sealed with a sealing material such as resin.

The first electrode substrate 2a has a substrate overhanging portion 2c overhanging to the outside of the second electrode substrate 2b, and the driver IC 4 has an ACF (anisotropic) on the substrate overhanging portion 2c.
It is implemented by icConductive Film) 6. As shown in FIGS. 2 and 3, on the back side of the first electrode substrate 2a (the lower side of the structure shown in FIG. 2), an illumination device 9 having a light emitting source 7 and a light guide 8 is provided as a backlight. There is.

2 and 3, the first electrode substrate 2a
Has a first substrate 9a, the inner surface of the first substrate 9a,
That is, the semi-transmissive reflective film 11 is arranged on the surface of the liquid crystal L side, the R color filter 12 is arranged thereon, and the flat film 13 is arranged thereon so as to cover the color filter 12, and the first film is formed thereon. The electrode 14a is arranged, and the alignment film 16a is further arranged thereon. In addition, the first electrode substrate 2a
A retardation plate 17a is arranged on the outer surface of the plate, and a polarizing plate 18a is further arranged thereon.

As shown in FIGS. 1 and 5, the first electrode 14a is formed in a stripe shape by arranging a plurality of linear electrodes in parallel with each other. In the figure, in order to clearly show the electrode pan turn, the first electrode 14
Although it is schematically drawn even if the distance a is widened, the distance between the first electrodes 14a is actually very narrow. Further, on the first electrode substrate 2a, the first wiring 19 formed by extending the first electrode 14a arranged in the display region 104.
a is arranged. The first wiring 19a includes the wiring area 105a, a part of the seal area 103, and the seal area 10.
It is arranged straddling the outside of 3. In addition, the first substrate 9a
A second wiring 19b, which is electrically connected to a second electrode 14b arranged on a second substrate 9b described later, is arranged on the upper side. The second wiring 19b has a seal region 10 at one end.
Located inside 3, the wiring area 105b and the seal area 103
And a part of the seal area 103 and the seal area 103.

The semi-transmissive reflective film 11 is made of a light reflective material such as Al (aluminum) and has a film thickness of 100 n.
m to 500 nm. However, in order to achieve the function of semi-transmissive reflection, the light-reflecting material is formed so that its thickness is thin enough to allow light to pass therethrough, or an opening (that allows light to pass through an appropriate position of the semi-transmissive reflective film 11). (Not shown) is formed at an appropriate area ratio.

For the color filter 12 described above, a color filter material in which a pigment is dispersed in an organic resin such as an acrylic resin is formed by an ink jet method, a pigment dispersion method, or the like, in an appropriate mosaic arrangement, stripe arrangement, delta arrangement, or the like. It is formed by applying a pattern, and the thickness thereof is, for example, 1 to 3 μm. The flattening film 13 is made of an appropriate light-transmissive resin material such as acrylic resin.
For example, it is formed by applying by a spin coating method, a roll coating method, or the like, and the thickness thereof is, for example, 1 to 3.
formed to a thickness of μm. The flattening film 13 is a color filter 1.
The unevenness of the surface 2 is filled with a flat film material to be flattened. In the present embodiment, the color filter 1
The film in which 2 is covered with the flat film 13 is not only the display region 104 but also the wiring regions 105a and 105 which are not involved in the display.
b, and even the non-display area 106 where the wiring is not arranged. In other words, the film in which the flat film 13 covers the color filter 12 is arranged in the area surrounded by the seal area 103. Therefore, in the wiring regions 105a and 105b, the first filter is formed on the color filter 12 covered with the flat film 13.
The wiring 19a and the second wiring 19b are arranged.

On the other hand, in FIGS. 2 and 3, the second electrode substrate 2b has a second substrate 9b, and the second electrode 14b is arranged on the inner surface of the second substrate 9b, that is, on the liquid crystal L side surface. Further, the alignment film 16b is formed thereon.

As shown in FIGS. 1 and 5, the second electrode 14b is formed in a stripe shape by arranging a large number of linear electrodes in parallel with each other in a direction intersecting with the first electrode 14a. In addition, in the figure, in order to show the electrode pattern in an easy-to-understand manner, the intervals between the second electrodes 14b are schematically illustrated with a large distance, but in practice, the intervals between the second electrodes 14b are formed very narrow. . Further, a retardation plate 17b is arranged on the outer surface of the second substrate 9b, and a polarizing plate 18b is further arranged thereon. Further, on the second electrode substrate 2b, the second electrode 1 arranged in the display area 104 is formed.
3rd wiring 114 which 4b extends is arranged.
The third wiring 114 is arranged inside the wiring area 105 a and the seal area 103. As shown in FIG.
One end of the wiring 114 is connected to the second electrode 14b, and the other end of the wiring 114 is arranged on the above-described first substrate 9a.
It is electrically connected to one end of 9b through a conductive material 21 contained in the seal 3.

In FIG. 5, the first electrode 14a, the first wiring 19a and the second electrode 14a arranged on the first electrode substrate 2a are arranged.
The second electrode 14b and the third wiring 114 arranged on the second electrode substrate 2b are indicated by thick lines so as to be easily distinguished from the wiring 19b.

1 and 5, the points where the first electrodes 14a and the second electrodes 14b intersect are arranged in a dot matrix, and each of these intersections constitutes one pixel. And each color pattern of the color filter 12 of FIG. 3 corresponds to one pixel thereof. In the color filter 12, for example, the three primary colors of R, G, and B are combined into one unit to form one pixel. That is, three pixels are one unit to form one pixel.

For the first substrate 9a and the second substrate 9b, for example, glass or plastic is used. Also, the first
The electrode 14a and the second electrode 14b are, for example, ITO (In
50 μm to 5 nm in thickness using a well-known film forming method such as a sputtering method or a vacuum evaporation method.
After forming a film having a thickness of 00 nm, a desired pattern is formed by a photoetching method. Alignment film 16a and alignment film 1
6b has a thickness of 50 nm by a method such as applying a polyimide solution and then baking, or an offset printing method.
It is formed to 100 nm.

In FIGS. 1 and 5, the first electrode substrate 2a
On the substrate overhanging portion 2c of the second electrode substrate 2b via the first wiring 19a extending directly from the first electrode 14a and the conductive material 21 (see FIG. 3) dispersed in the sealing material 3. A second wiring 19b connected to the third wiring 114, in which the two electrodes 14b extend as it is, is arranged. In addition, terminals 22 are arranged at the edge portions of the substrate overhanging portion 2c. These wirings and terminals are conductively connected to bumps (not shown) of the driving IC 4 via conductive particles in the ACF 6.

In FIG. 2 and FIG. 3, the conductive material 21 is shown in a large size in order to make the overall structure of the liquid crystal device 1 easy to understand, but its size is relative to the line width of the sealing material 3. It is a very small one. Therefore, a plurality of conductive materials 21 can exist in the line width direction of the sealing material 3.

Since the liquid crystal device 1 according to the present embodiment is configured as described above, it has two types of reflective display and transmissive display.
Street display methods can be selectively implemented. In the reflective display, the light taken in from the outside on the second electrode substrate 2b side is reflected by the semi-transmissive reflective film 11 and supplied to the layer of the liquid crystal L. In this state, by controlling the voltage applied to the liquid crystal L for each pixel and controlling the alignment of the liquid crystal for each pixel, the light supplied to the layer of the liquid crystal L is modulated for each pixel, and the modulated light is It is supplied to the polarizing plate 18b. As a result, an image such as a character is displayed outside the second electrode substrate 2b.

On the other hand, when the transmissive display is performed by the liquid crystal device 1, the light emission source 7 of the illumination device 9 is caused to emit light. The light from the light emitting source 7 is introduced into the inside of the light guide body 8 through the light incident surface 8a, and propagates while being spread in the inside of the light guide body 8 in a plane, and is emitted to the outside through the light emission surface 24b. As a result, planar light is supplied to the layer of the liquid crystal L. Displaying by modulating this light with the liquid crystal L is the same as in the case of the reflective display.

In FIG. 1, the wiring 19b provided on the first electrode substrate 2a and electrically connected to the second electrode 14b on the second substrate 2b through the conductive material 21 is the wiring in the present embodiment. In a state where it extends from above the substrate overhanging portion 2c through the sealing material 3 into the area surrounded by the sealing material 3, that is, the area in which the liquid crystal L is sealed,
The conductive material 21 dispersed in the sealing material 3 establishes electrical connection with the second electrode 14b via the third wiring 114.

As shown in FIGS. 3 and 4, the wiring 1
9b has a laminated structure in which the conductive film 22 is the first layer and the conductive film 23 is the second layer. Conductive film 22
Is composed of, for example, an APC alloy containing Ag as a main component and Pd and Cu added thereto. In addition, the conductive film 23 is formed at the same time when the first electrode 14a is patterned, that is, as the same layer. As a result, the conductive film 23 is formed of the same ITO as the first electrode 14a.

As described above, the second wiring 19b of the present embodiment is composed of an APC alloy having a lower resistance than ITO, so that the wiring resistance of the second wiring 19b is IT.
It is lower than that of O alone. Therefore, the second
The blunting of the waveform does not occur in the signal flowing through the wiring 19b, and an image with high display quality can be displayed in the display area of the liquid crystal device 1.

By the way, the APC alloy has the excellent low resistance characteristics as described above, but also has a drawback that it is easily corroded. If such corrosion occurs in the second wiring 19b, the voltage applied to the liquid crystal L may not be able to be normally controlled, and thus it may not be possible to maintain high display quality. In this regard, in the present embodiment, the conductive film 22 made of an APC alloy is arranged in a region surrounded by the seal material 3, that is, a region in which the liquid crystal L is sealed so that the conductive film 22 does not come out of the seal material 3. I'm designing. As a result, the conductive film 22 is prevented from coming into contact with the outside air and the film 22 is prevented from being corroded. In addition, in FIG. 4, in order to clearly show the relationship between the wiring 19 b and the sealing material 3, the sealing material 3
Although the line width of the wiring 19b is drawn wider than the actual line width, the line width of the wiring 19b is often narrower than the line width of the sealing material 3 in practice.

Here, in general, the thickness of the liquid crystal layer of the liquid crystal device is designed to be about 3 to 8 μm. Therefore, in a conventional liquid crystal device having a structure in which the film in the state where the flat film covers the color filter is not arranged in the wiring region, the film thickness of the film in the state where the flat film covers the color filter is 3 to 5 μm. It was designed to have almost the same thickness as the liquid crystal layer, and it was very difficult to adjust the color filter so that the cell thickness was the same in the region with and without the film covered with the flat film. . On the other hand, in the present embodiment, as described above, the first wiring 19a and the second wiring 19b are used.
Are arranged in the wiring areas 105a and 105b and the non-display area 106 in which the wiring is not arranged.
A film in which the flat film 13 covers the color filter 12 is arranged so as to extend from the display region 104. In other words, in the area surrounded by the sealing material 3, the film in which the flat film 13 covers the color filter 12 is arranged. Therefore, the film formation state in the region surrounded by the sealing material 3 of the electrode substrate 2a can be made substantially the same in the plane, and when the two electrode substrates 2a and 2b are bonded to each other to manufacture a liquid crystal cell, The cell thickness in the display area 104 and the cell thickness in the wiring areas 105a and 105b and the non-display area in which the wiring is not arranged can be easily adjusted to be the same. Therefore, a liquid crystal device incorporating such a liquid crystal cell is
Since the cell thickness is kept substantially uniform within the substrate surface, there is no display unevenness and the display quality is high. Further, in the present embodiment, since the alignment films 16a and 16b are also arranged in the region surrounded by the sealing material 3, the alignment films 16a and 1b are formed.
6b is a wiring region 105a and 105b, compared with the case where the non-display region is not arranged in the region 106 where the wiring is not arranged, it is possible to make the film thickness formation state of these regions other than the display region and the display region substantially the same. Therefore, it becomes easy to set the cell thickness uniformly in the substrate surface.

In general, an inorganic film such as Al used for the semi-transmissive reflective film 11 and ITO used for the first electrode 14a and the second electrode 14b is compared with an organic resin film used for a color filter or a flattening film. Since it is apt to be formed to be very thin, the degree of contribution to the adjustment of the cell thickness is very low as compared with the organic resin. Therefore, in the present embodiment, the semi-transmissive reflective film 11 is formed only in a region substantially corresponding to the display region 104, but the wiring regions 105a and 1a are formed.
05b and a region 106 which is a non-display region and in which wiring is not arranged may be extended and arranged.

Further, in the present embodiment, as shown in FIG. 4, the conductive film 22 is entirely contained within the region surrounded by the sealing material 3, but instead of this, the conductive film 22 is replaced with a conductive film. A configuration in which a part of the conductive film 22 is arranged in the region surrounded by the seal material 3 and the other part is located outside the seal material 3 by extending the seal material 3 in the inner region of 23 Can also be adopted.

In this embodiment, the color filter 12 and the flattening film 13 are arranged on the first electrode substrate 2a side, but they may be arranged on the second electrode substrate 2b side.

The cell thickness mentioned above is the distance between the surface of the first substrate 9a arranged on the liquid crystal layer side and the surface of the second substrate 9b arranged on the liquid crystal layer side. The same is true for.

Next, a method of manufacturing the liquid crystal device described above will be described.

First, the first substrate 9a and the second substrate 9b are prepared.

First, a method of manufacturing the first electrode substrate 2a will be described. An Al film is formed on a region corresponding to the display region 104 on the first substrate 9a to form a semi-transmissive reflective film 11. Next, the R, G, and B color filters 12 are formed on the semi-transmissive reflective film 11 by a known film forming method such as a pigment dispersion method or an inkjet method. This color filter 12
Is a display area 104, wiring areas 105a and 105b,
The non-display area 10 in which wiring is not arranged
6 is formed. Next, a transparent resin material is applied onto the color filter 12 by spin coating or the like to form a flattening film 13
To form. The flattening film 13 is used as the color filter 12
And is formed so as to substantially fill the inside of the region surrounded by the sealing material 3. Next, an APC alloy film is formed and etched into a desired pattern by a photo etching method to form a part of the second wiring 19b.
Next, I is formed on the flattening film 13 by, for example, a sputtering method.
After forming the TO film, the first electrode 14a, the first wiring 19a, and a part of the second wiring 19b are formed by etching into a desired pattern by a photoetching method. After that, the alignment film 16a is formed by a known method so as to substantially fill the region surrounded by the sealing material, and the first electrode substrate 2a is manufactured.

Next, a method of manufacturing the second electrode substrate 2b will be described. After forming an ITO film on the first substrate 9b by, for example, a sputtering method or the like, the second electrode 14b is etched by a photoetching method to form a desired pattern.
And the third wiring 114 part is formed. After that, the sealing material 3
The first electrode substrate 2a is manufactured by forming the alignment film 16a by a known method in a region substantially corresponding to the region surrounded by.

Next, the sealing material 3 containing the conductive material 21 is applied on either one of the first electrode substrate 2a and the second electrode substrate 2b, and the first electrode substrate is applied via this sealing material 3. The liquid crystal cell is manufactured by bonding the 2a and the second electrode substrate 2b together. At this time, the second wiring 19b and the third wiring 114
Are electrically connected to each other by a conductive material 21 contained in the sealing material 3. In the present embodiment, the color filter 1
Since the film composed of 2 and the flattening film 13 covering the film 2 is arranged up to the region surrounded by the sealing material 3, it is possible to uniformly adjust the cell thickness of the liquid crystal cell in the plane during the substrate bonding process. Can be done easily and work efficiency is good.

After that, the retardation plates 17a and 1 are placed in the liquid crystal cell.
7b, the polarizing plates 18a and 18b are arranged, and the backlight 9 is further arranged to manufacture a liquid crystal device.

(Second Embodiment) Next, an active matrix type COG using a TFD as a switching element is used.
A case where the present invention is applied to a (Chip On Glass) type liquid crystal device will be described as an example with reference to FIGS.

FIG. 6 is a schematic plan view of the liquid crystal device. 7 is a cross-sectional view of the liquid crystal device of FIG. 6 taken along line VII-VII. FIG. 8 is an enlarged perspective view showing a switching element portion indicated by an arrow VIII in FIGS. 6 and 7. Figure 9
FIG. 9 is a cross-sectional view taken along line IX-IX of the liquid crystal device of FIG. 6 and line IX′-IX ′ of the liquid crystal device of FIGS. 6 and 10.
FIG. 10 is an enlarged plan view showing a wiring portion indicated by an arrow X in the liquid crystal device of FIG. FIG. 11 is a plan view for explaining the positional relationship among the seal area, the display area, and the wiring area of the liquid crystal device shown in FIG. 6, and the TFD and the pixel electrode are not shown in FIG.

As shown in FIG. 11, the liquid crystal device 31 includes a display area 304 surrounded by a dotted line and wiring areas 305a and 30 adjacent to the display area 304 and surrounded by a dashed line.
5b and a non-display area 3 in which wiring is not arranged
06, the display area 304, the wiring areas 305a and 305b, and the sealing material 3 that surrounds the non-display area 306 in which wiring is not arranged (the area where the inside is filled with diagonal lines). And have.

In the liquid crystal device 31, the second electrode substrate 2b arranged on the back side of the drawing and the first electrode substrate 2a arranged on the front side of the drawing are arranged in the seal area 303 and have a substantially rectangular shape. It is formed by sticking together with the sealing material 3.

A region surrounded by the sealing material 3, the first electrode substrate 2a and the second electrode substrate 2b has a constant height,
It constitutes the so-called cell thickness. A liquid crystal injection port 3 a is arranged in a part of the sealing material 3. In the gap between the first electrode substrate 2a and the second electrode substrate 2b, the liquid crystal L is introduced through the liquid crystal injection port 3a.
Is injected, and after the injection is completed, the liquid crystal injection port 3a is sealed with a sealing material such as resin.

The first electrode substrate 2a has a substrate overhanging portion 2c overhanging to the outside of the second electrode substrate 2b, and the three driving ICs 4a, 4b, 4c are ACFs on the substrate overhanging portion 2c.
(Anisotropic Conductive F
ilm) 6. In the present embodiment, unlike the first embodiment, three driving ICs are used on the first electrode substrate 2a side and the second electrode substrate 2b side, in other words, the scanning line driving system and the signal line driving. This is because one IC chip cannot cover them because the voltage values used for the system are different. Figure 7
And as shown in FIG. 9, the back side of the second electrode substrate 2b (see FIG.
An illumination device 9 having a light emitting source 7 and a light guide 8 is provided as a backlight on the lower side of the structure shown in FIG.

7 and 9, the first electrode substrate 2a
Has a first substrate 9a, the inner surface of the first substrate 9a,
That is, on the surface on the liquid crystal L side, the line wiring 32, the TFD 33 that is electrically connected to the line wiring 32, and the TFD 3 thereof.
And a pixel electrode 34 as a first electrode that is electrically connected to the line wiring 32 through the line 3. Also, the pixel electrode 3
4, the alignment film 16a on the TFD 33 and the line wiring 32
Are placed. Further, on the outer surface of the first substrate 9a,
A retardation plate 17a is arranged, and a polarizing plate 18a is further provided thereon.
Are arranged.

As shown in FIG. 6, the line wirings 32 are formed in stripes in parallel with each other, the pixel electrodes 34 are arranged in a dot matrix between the line wirings 32, and the TFD 33 is one side. Each pixel electrode 34 is individually provided so as to be electrically connected to the line wiring 32 and electrically connected to the pixel electrode 34 on the other side. Furthermore, the first electrode substrate 2a
The first wiring 19a formed by extending the line wiring 32 arranged in the display area 304 is arranged above. The first wiring 19a includes a wiring area 305a and a seal area 303.
And a part of the seal area 303 and the outside of the seal area 303. Further, on the first electrode substrate 2a, the second wiring 19b electrically connected to the second electrode 35 arranged on the second electrode substrate 2b described later is arranged. This second wiring 1
One end of 9b is located inside the seal region 303, and is arranged over the wiring region 305b, a part of the seal region 303, and the outside of the seal region 303.

In FIG. 6 and FIG. 7, 1 indicated by arrow VIII
The structure in the vicinity of each TFD is shown in FIG. 8, for example. FIG. 8 shows a so-called Buck-to-Bu.
This is a TFD having a ck (back-to-back) structure. In FIG. 8, the line wiring 32 is, for example, T
a first layer 32a made of aW (tantalum / tungsten), a second layer 32b made of Ta ₂ O ₅ (tantalum oxide) which is an anodized film, and a third layer 32c made of Cr, for example. Is formed in a three-layer structure.

The TFD 33 has a first TFD section 33a.
And the second TFD section 33b are connected in series. The first TFD portion 33a and the second TFD portion 33b are the first metal layer 36 formed of TaW.
And an insulating layer 3 of Ta ₂ O ₅ formed by anodic oxidation
7 and C, which is the same layer as the third layer 32c of the line wiring 32.
It has a three-layer laminated structure with the second metal layer 38 of r.

When the first TFD portion 33a is viewed from the line wiring 32 side, the second metal layer 38 / insulating layer 37 / first metal layer 3 is formed.
When the second TFD portion 33b is viewed from the line wiring 32 side, the laminated structure of the first metal layer 36 / insulating layer 37 / second metal layer 38 is formed. As described above, the pair of TFD portions 33a and 33b are electrically connected in series in opposite directions to form a TFD having a back-to-back structure, thereby stabilizing the switching characteristics of the TFD. The pixel electrode 34 has the second TFD portion 3
In order to conduct electricity to the second metal layer 38 of 3b, for example, ITO
Formed by.

On the other hand, in FIGS. 7 and 9, the second electrode substrate 2b has a second substrate 9b, and the semi-transmissive reflective film 11 is formed on the inner surface of the second substrate 9b, that is, on the liquid crystal L side surface.
Is arranged, and the color filter 12 is arranged thereon.
The flattening film 13 is disposed so as to cover the color filter 12, the second electrode 35 is disposed thereon, and the alignment film 16b is further disposed thereon. Further, a retardation plate 17b is arranged on the outer surface of the second substrate 9b, and a polarizing plate 18b is further arranged thereon.

As shown in FIGS. 6 and 11, the second electrodes 35 are formed in stripes by arranging them in parallel with each other in a direction intersecting with the large number of linear line wirings 32. In the figure, in order to show the electrode pattern in an easy-to-understand manner, the intervals between the second electrodes 35 are enlarged and illustrated schematically. However, in practice, the intervals between the second electrodes 35 are very narrow. . Furthermore, on the second electrode substrate 2b,
A third wiring 314 formed by extending the second electrode 35 arranged in the display region 304 is arranged. This third wiring 31
4 is arranged inside the wiring region 305a and the seal region 303. As shown in FIG. 9, one end of the third wiring 114 is electrically connected to the second electrode 35, and the other end thereof is one end of the second wiring 19b arranged on the above-mentioned first electrode substrate 2a. Are electrically connected via a conductive material 21 contained in the seal 3. In addition, in FIG. 11, the line wiring 32 and the first wiring 19a arranged on the first substrate 9a.
And the second substrate 9 so as to be easily distinguished from the second wiring 19b.
The second electrode 35 and the third wiring 314 arranged on b are
It is indicated by a thick line.

For the color filter 12 described above, a color filter material in which a pigment is dispersed in an organic resin such as an acrylic resin is formed by an ink jet method, a pigment dispersion method, or the like into a suitable mosaic arrangement, stripe arrangement, delta arrangement, or the like. It is formed by applying a pattern, and the thickness thereof is, for example, 1 to 3 μm. The flattening film 13 is made of an appropriate light-transmissive resin material such as acrylic resin.
For example, it is formed by applying by a spin coating method, a roll coating method, etc., and its thickness is, for example, 1 to 3.
formed to a thickness of μm. The flattening film 13 is a color filter 1.
The unevenness of the surface 2 is filled with a flat film material to be flattened. In the present embodiment, the color filter 1
The film in which 2 is covered with the flat film 13 is not only the display region 304 but also the wiring regions 305a and 305 which are not involved in the display.
b, and the non-display area is also arranged up to the area 306 where the wiring is not arranged. In other words, the film in which the flat film 13 covers the color filter 12 is arranged in the area surrounded by the seal area 303. Therefore, in the wiring regions 305a and 305b, the first film is formed on the color filter 12 covered with the flat film 13.
The wiring 19a and the second wiring 19b are arranged.

In FIG. 6, the points where the pixel electrodes 34 and the second electrodes 35 intersect are arranged in a dot matrix, and each of these intersections constitutes one pixel. Each color pattern of the color filter 12 corresponds to one pixel. Color filter 12
For example, the three primary colors of R, G, and B constitute one unit and constitute one pixel. That is, three pixels are one unit to form one pixel.

For the first substrate 9a and the second substrate 9b, for example, glass or plastic is used. The alignment films 16a and 16b are formed to have a thickness of 5 nm to 100 nm by, for example, a method of applying a polyimide solution and then firing, or an offset printing method.

6 and 11, the first electrode substrate 2
The first wiring 19a extending directly from the line wiring 32 on the substrate overhanging portion 2c of a and the second wiring on the second electrode substrate 2b via the conductive material 21 (see FIG. 7) dispersed in the sealing material 3 The second wiring 19b connected to the third wiring 314 in which the electrode 35 extends as it is is arranged. In addition, terminals 22 are arranged at the edge portions of the substrate overhanging portion 2c.
These wirings and terminals are conductively connected to bumps (not shown) of the driving ICs 4a, 4b, 4c through conductive particles in the ACF 6.

In FIG. 7 and FIG. 9, the conducting material 21 is schematically shown in an elliptical cross section in order to clearly show the overall structure of the liquid crystal device 31, but in reality, the conducting material 21 is spherical or It is formed in a cylindrical shape, and its size is extremely smaller than the line width of the sealing material 3. Therefore,
A plurality of conductive materials 21 may be present in the line width direction of the sealing material 3.

Since the liquid crystal device 31 according to the present embodiment is configured as described above, it is possible to selectively carry out two display methods of the reflective display and the transmissive display, as in the first embodiment. Since the progress of light in each of these display modes is the same as that in the case of FIG. 1, detailed description thereof will be omitted.
Regarding the light modulation control method, in the case of the simple matrix type shown in the first embodiment, the first electrode 14a and the second electrode 14a
This is performed by controlling the voltage applied to the electrode 14b. In the liquid crystal device according to the present embodiment, TF
The orientation of the liquid crystal molecules is controlled based on the switching operation of D33 to control the modulation of light passing through the liquid crystal layer.

In FIG. 6, the wiring 19b provided on the first electrode substrate 2a and electrically connected to the third wiring 314 on the second substrate 2b through the conductive material 21 is the wiring in the present embodiment. In a state where it extends from above the substrate overhanging portion 2c through the sealing material 3 into the area surrounded by the sealing material 3, that is, the area in which the liquid crystal L is sealed,
The conductive material 21 dispersed in the sealing material 3 establishes electrical connection with the second electrode 35 via the third wiring 314.

As shown in FIGS. 9 and 10, the wiring 19b has TaW as the first layer 39 and the conductive film 22 as the second layer.
The layer is formed by a laminated structure in which the conductive film 23 is the third layer. The conductive film 22 can be formed, for example, as the same layer as the second metal layer 38 in the TFD 33 on the same first substrate 2a, in which case the conductive film 22 is made of Cr. The conductive film 23 is formed at the same time when the pixel electrodes 34 on the same first substrate 2a are patterned, that is, as the same layer. As a result, the conductive film 23 is formed of the same ITO as the pixel electrode 34.

As described above, since the wiring 19b of this embodiment contains Cr, which has a lower resistance than ITO, the wiring resistance of the wiring 19b is lower than that of the ITO alone. There is. Therefore, the signal flowing through the wiring 19b does not have a blunted waveform,
An image with high display quality can be displayed in the display area of the liquid crystal device 31.

By the way, although Cr has the above-mentioned excellent low resistance characteristics, it also has a drawback that it is easily corroded. If such corrosion occurs in the second wiring 19b, the voltage applied to the liquid crystal L may not be able to be normally controlled, and thus it may not be possible to maintain high display quality. With respect to this, in the present embodiment, the conductive film 22 made of Cr is arranged in a region surrounded by the seal material 3, that is, a region in which the liquid crystal L is sealed, and is designed so as not to appear outside the seal material 3. is doing. As a result, the conductive film 22 is prevented from coming into contact with the outside air and the film 22 is prevented from being corroded.

In FIG. 10, the line width of the wiring 19b with respect to the line width of the sealing material 3 is drawn wider than the actual width in order to show the relationship between the wiring 19b and the sealing material 3 in an easy-to-understand manner. The line width of the wiring 19b is often narrower than the line width of the sealing material 3.

Here, in general, the thickness of the liquid crystal layer of the liquid crystal device is designed to be 3 to 8 μm. In a conventional liquid crystal device having a structure in which a film in which a color filter is covered with a flat film is not arranged in a wiring region, a film thickness of the film in which the color filter is covered with a flat film is 3 to 5 μm. It is designed to be almost the same thickness as
In the case of a liquid crystal device, it was very difficult to adjust the color filter so that the cell thickness is the same in the region where the film is covered with the flat film and the region where the film is not. On the other hand, in the present embodiment, as described above, the wiring regions 305a and 305 where the first wiring 19a and the second wiring 19b are arranged.
05b, and a region 306 which is a non-display region in which wiring is not disposed, a film in which the color filter 12 is covered with the flat film 13 is disposed so as to extend from the display region 304. In other words, in the area surrounded by the sealing material 3, the film in which the flat film 13 covers the color filter 12 is arranged. Therefore, the film formation state in the region surrounded by the sealing material 3 of the second electrode substrate 2b can be made substantially the same in the plane, and the two electrode substrates 2a and 2 can be formed.
When the liquid crystal cell is manufactured by pasting b, the display area 3
04 cell thickness and wiring regions 305a and 305
b and the cell thickness in the non-display region 306 where the wiring is not arranged can be easily adjusted to be the same. Further, a liquid crystal device incorporating such a liquid crystal cell has a uniform cell thickness within the surface of the substrate and therefore has no display unevenness and high display quality. still,
In the present embodiment, the wiring areas 305a and 305
b, and a region 306 which is a non-display region and where no wiring is arranged, the pixel electrode or the T electrode formed in the display region 304
Although no FD element or the like is arranged, similar to the display region 304, line wiring, pixel electrodes, TFD elements, or the like that are not actually involved in display may be arranged.

In general, Al used for the semi-transmissive reflective film 11 and I used for the pixel electrode 34 and the second electrode 32.
Inorganic films such as TO are much thinner than organic resin films used for color filters and flattening films, so they are much more involved in cell thickness adjustment than organic resins. Low. Therefore, in the present embodiment, the semi-transmissive reflective film 11 is formed only in a region substantially corresponding to the display region 304, but the wiring regions 305a and 305a.
5b, and may be extended to the non-display area 306 where the wiring is not arranged. Further, in the present embodiment, as shown in FIG. 10, the conductive film 22 is entirely contained within the region surrounded by the sealing material 3. However, instead of this, the conductive film 22 is placed inside the conductive film 23. A configuration is adopted in which a part of the conductive film 22 is arranged in a region surrounded by the seal material 3 and the other part is located outside the seal material 3 by extending the seal material 3 in the region. You can also

Further, in this embodiment, the color filter 12 and the flattening film 13 are arranged on the second electrode substrate 2b side, but they may be arranged on the first electrode substrate 2a side.

Also in this embodiment, as in the first embodiment, since the film including the color filter 12 and the flattening film 13 that covers the color filter 12 is arranged up to the region surrounded by the sealing material 3, the substrate is attached. At the time of the aligning step, the cell thickness of the liquid crystal cell can be easily adjusted to be uniform in the plane, and the work efficiency is good.

(Third Embodiment) FIG. 12 shows a mobile personal computer which is an embodiment of an electronic apparatus according to the present invention. Computer 50 shown here
Is composed of a main body 52 having a keyboard 51 and a liquid crystal display unit 53. Liquid crystal display unit 5
3 has a liquid crystal device 54 incorporated in an outer frame serving as a housing part. The liquid crystal device 54 uses, for example, the liquid crystal device 1 shown in the first embodiment or the liquid crystal device 31 shown in the second embodiment. Can be configured.

(Fourth Embodiment) FIG. 13 shows a portable telephone which is another embodiment of the electronic apparatus according to the present invention. The mobile phone 60 shown here has a plurality of operation buttons 6
In addition to 1, the liquid crystal device 64 is incorporated in an outer frame as a casing part having an earpiece 62 and a mouthpiece 63. The liquid crystal device 64 can be configured by using, for example, the liquid crystal device 1 shown in the first embodiment or the liquid crystal device 31 shown in the second embodiment.

(Fifth Embodiment) FIG. 14 shows a digital still camera which is still another embodiment of the electronic apparatus according to the present invention. An ordinary camera exposes a film with a light image of a subject, whereas the digital still camera 70 uses a CCD (ChargeCoup) to capture the light image of the subject.
The image pickup device, such as a red device, performs photoelectric conversion to generate an image pickup signal.

Here, a liquid crystal device 74 is provided on the back surface of a case 71 as a casing of the digital still camera 70, and a display is made based on an image pickup signal from the CCD. Therefore, the liquid crystal device 74 functions as a finder that displays the subject. Also, case 7
A light receiving unit 72 including an optical lens and a CCD is provided on the front side of 1 (the back side of the structure shown in FIG. 14). The liquid crystal device 74 can be configured using, for example, the liquid crystal device 1 shown in the first embodiment or the liquid crystal device 31 shown in the second embodiment. The photographer confirms the subject displayed on the liquid crystal display device 74 and presses the shutter button 73 to perform photographing.

(Other Embodiments) The present invention has been described above with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and within the scope of the invention described in the claims. It can be variously modified.

For example, in the first and second embodiments, the COG having a structure in which the IC chip is directly mounted on the substrate
Although the present invention is applied to a liquid crystal device of a system, a liquid crystal device other than the COG system, for example, FPC (Flexible Pri) is used.
a liquid crystal device having a structure in which an IC chip is connected to a substrate via an embedded circuit, or a TAB (Tape Automated Bonded) in which the IC chip is mounted.
g) The present invention can be applied to a liquid crystal device having a structure in which the substrate is connected to the substrate on the liquid crystal panel side.

As the electronic apparatus according to the present invention, in addition to the personal computer shown in FIG. 12, the mobile phone shown in FIG. 13, the digital still camera shown in FIG. 14, a liquid crystal television, a viewfinder type, and a monitor direct view type video device. Examples include tape recorders, car navigation devices, pagers, electronic organizers, calculators, word processors, workstations, videophones, and POS terminals. And
The liquid crystal device according to the present invention can be used as a display portion of these various electronic devices.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing a first embodiment of a liquid crystal device according to the present invention.

2 is a cross-sectional view showing a cross-sectional structure of a liquid crystal device taken along line II-II of FIG.

FIG. 3 is a III-III line in FIG. 1, and III′-II in FIGS. 1 and 3.
FIG. 3 is a cross-sectional view showing a cross-sectional structure of the liquid crystal device taken along the line I ′.

FIG. 4 is an enlarged plan view showing a wiring portion indicated by an arrow IV in FIG.

5 is a seal area, a display area, and the like of the liquid crystal device shown in FIG.
It is a top view for explaining the physical relationship of a wiring field.

FIG. 6 is a partially cutaway plan view showing a second embodiment of a liquid crystal device according to the present invention.

7 is a cross-sectional view showing a cross-sectional structure of the liquid crystal device taken along line VII-VII of FIG.

8 is an enlarged perspective view showing a switching element portion shown by an arrow VIII in FIGS. 6 and 7. FIG.

9 is a line IX-IX in FIG. 6, and IX'-IX 'in FIGS. 6 and 10;
It is sectional drawing which shows the cross-section of the liquid crystal device cut | disconnected according to the line.

10 is an enlarged plan view showing a wiring portion indicated by an arrow X in FIG.

11 is a plan view for explaining a positional relationship among a seal area, a display area, and a wiring area of the liquid crystal device shown in FIG.

FIG. 12 is a perspective view showing a mobile computer which is an embodiment of an electronic apparatus according to the invention.

FIG. 13 is a perspective view showing a mobile phone which is another embodiment of the electronic apparatus according to the invention.

FIG. 14 is a perspective view showing a digital still camera which is another embodiment of the electronic apparatus according to the invention.

[Explanation of symbols]

1, 31 ... Liquid crystal device 3 ... Sealing material 9a ... first substrate 9b ... second substrate 12 ... Color filter 13 ... Flattening film 14a ... 1st electrode 14b, 35 ... Second electrode 19a ... first wiring 19b ... second wiring 21 ... Conductive material 22 ... Conductive film 23 ... Conductive film 32 ... Line wiring 34 ... Pixel electrode 36 ... First metal layer 37 ... Insulating layer 38 ... Second metal layer 50 ... Computer 60 ... Mobile phone 70 ... Digital still camera 103, 303 ... Seal area 104, 304 ... Display area 105a, 105b, 305a, 305b ... Wiring area 114, 314 ... Third wiring

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G09F 9/30 330 G09F 9/30 330Z 343 343Z 349 349B 9/35 9/35 F term (reference) 2H048 BA45 BA64 BB02 BB10 BB28 BB44 2H089 LA41 NA37 QA12 QA14 2H091 FA02Y FC05 FC12 GA01 GA02 GA03 GA13 LA12 LA15 2H092 GA60 HA04 JA03 JB12 JB24 JB33 MA05 MA07 MA18 NA01 NA29 PA01 PA04 PA08 PA09 5C094 CA014A19 BA04 BA19 DA04 CA194 A19 BA04 BAA03 BA04 BAA04 EA04 EA07 EB02 ED03 HA02 HA03 HA04 HA07 HA08 HA10

Claims (23)

[Claims] 1. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is disposed, and the sealing area is pasted through the sealing material. A liquid crystal device comprising a first substrate and a second substrate, wherein a film having a color filter disposed in the display region and the wiring region on the first substrate, and the display on the film having the color filter. Electrically connected to a first electrode arranged in a region, a second electrode arranged in the display region on the second substrate, and a second electrode arranged in the wiring region on the first substrate And a second wiring for controlling the liquid crystal device. 2. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged, and the sealing area is pasted through the sealing material. A liquid crystal device comprising one substrate and a second substrate, comprising a film having color filters arranged in the display region and the wiring region on the second substrate, and the color filter on the second substrate. A second electrode arranged in the display area on the film, a first electrode arranged in the display area on the first substrate, and a second electrode arranged in the wiring area on the first substrate A liquid crystal device, comprising: a second wiring electrically connected to the electrode. 3. The liquid crystal according to claim 1, further comprising a first wiring electrically connected to the first electrode arranged in the wiring region on the first substrate. apparatus. 4. The liquid crystal device according to claim 1, wherein the film having the color filter has a color filter and a flattening film that covers the color filter. 5. The liquid crystal device according to claim 1, wherein the film having the color filter is arranged in a region surrounded by the seal region. 6. The liquid crystal device according to claim 1, wherein the second wiring has a conductive film having a resistance lower than that of the first electrode. 7. The second wiring has a laminated film of a conductive film in the same layer as the first electrode and a conductive film having a resistance lower than that of the first electrode. The liquid crystal device according to claim 6. 8. The conductive film in the same layer as the first electrode is I
8. The liquid crystal device according to claim 7, wherein the conductive film is a TO film and has a resistance lower than that of the first electrode is a simple substance of silver or an alloy containing silver. 9. A third wiring, which is electrically connected to the second electrode across the wiring area and the seal area, is arranged on the second substrate, and the second wiring extends to the inside of the seal area. 9. The third wiring and the second wiring that extend and are electrically connected to each other via a conductive material arranged in the seal region. The liquid crystal device according to item. 10. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. A liquid crystal device comprising a first substrate and a second substrate, wherein a film having a color filter disposed in the display region and the wiring region on the first substrate, and the display on the film having the color filter. TF having a laminated structure of a pixel electrode arranged in a region and a first metal film / insulating film / second metal film which is electrically connected to the pixel electrode arranged on the first substrate
A D element, a line wiring electrically connected to the pixel electrode via the TFD element arranged on the first substrate, and a pixel electrode arranged in the display region on the second substrate. A liquid crystal device comprising: a second electrode having a stripe shape facing each other; and a second wiring electrically connected to the second electrode arranged in the wiring region on the first substrate. 11. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged, the sealing area being pasted through the sealing material. A liquid crystal device comprising one substrate and a second substrate, comprising a film having color filters arranged in the display region and the wiring region on the second substrate, and the color filter on the second substrate. A stripe-shaped second electrode arranged in the display region on the film, a pixel electrode arranged opposite to the second electrode arranged in the display region on the first substrate, and on the first substrate T having a laminated structure of a first metal film / an insulating film / a second metal film that is electrically connected to each of the pixel electrodes arranged in
An FD element, a line wiring electrically connected to the pixel electrode via the TFD element arranged on the first substrate, and a second electrode arranged in the wiring region on the first substrate And a second wiring electrically connected to the liquid crystal device. 12. The method according to claim 10, further comprising a first wiring electrically connected to the line wiring arranged in the wiring area on the first substrate.
1. The liquid crystal device according to 1. 13. The liquid crystal device according to claim 10, wherein the film having the color filter has a color filter and a flat film that covers the color filter. 14. The liquid crystal device according to claim 10, wherein the film having the color filter is arranged in a region surrounded by the seal region. 15. The method according to claim 10, wherein the second wiring has a laminated film of a conductive film in the same layer as the pixel electrode and a conductive film having a resistance lower than that of the first electrode. Item 14. The liquid crystal device according to any one of items 14. 16. The liquid crystal device according to claim 15, wherein the conductive film having a resistance lower than that of the pixel electrode is in the same layer as the second electrode forming the TFD element. 17. The conductive film in the same layer as the pixel electrode is ITO, and the conductive film having a resistance lower than that of the first electrode is C.
The liquid crystal device according to any one of claims 10 to 16, wherein r is r. 18. A third wiring, which is electrically connected to the second electrode across the wiring area and the seal area, is disposed on the second substrate, and the second wiring extends to the inside of the seal area. 18. The extension, and the third wiring and the second wiring are electrically connected via a conductive material arranged in the seal region. The liquid crystal device according to item. 19. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged. The sealing area is pasted through the sealing material. A method of manufacturing a liquid crystal device comprising a first substrate and a second substrate, the method comprising forming a film having a color filter on the display region and the wiring region on the first substrate, and a film having the color filter. First in the display area above
Forming an electrode, forming a second wiring in the wiring region on the first substrate, forming a second electrode in the display region on the second substrate, and forming a second electrode on the second substrate A step of forming a third wire whose one end is electrically connected to the second electrode in the wiring area, and a film having the color filter, the first electrode and the second wire Applying a sealing material having a conductive material to the sealing region of the substrate or the second substrate on which the second electrode and the third wiring are formed; and, after applying the sealing material, the first substrate and the second substrate. The substrate is arranged so that the first electrode and the second electrode face each other, and the substrates are bonded together by the sealing material, and the other end of the third wiring and the second wiring are electrically connected via the conductive material. And a step of electrically connecting Method of manufacturing that the liquid crystal device. 20. A display area, a wiring area adjacent to the display area, and a sealing area in which a sealing material surrounding the display area and the wiring area is arranged, and the sealing material is pasted through the sealing material. A method of manufacturing a liquid crystal device comprising one substrate and a second substrate, comprising: forming a film having a color filter in the display region and the wiring region on the second substrate; Forming a second electrode in the display region on the film having the color filter; and forming a third wiring having one end electrically connected to the second electrode in the wiring region on the second substrate. A step of forming a first electrode in the display area on the first substrate, a step of forming a second wiring in the wiring area on the first substrate, the first electrode and the second wiring Or the first substrate on which is formed A step of applying a sealant having a conductive material to the seal area of the second substrate on which the film having the color filter, the second electrode and the third wiring are formed; The substrate and the second substrate are arranged so that the first electrode and the second electrode face each other, and are bonded by the sealing material, and the other end of the third wiring and the And a step of electrically connecting the two wirings to each other. 21. The method of manufacturing a liquid crystal device according to claim 19, wherein the film having the color filter includes a color filter and a flattening film that covers the color filter. 22. The method for manufacturing a liquid crystal device according to claim 19, wherein the film having the color filter is formed in a region surrounded by the seal region. 23. An electronic device comprising the liquid crystal device according to claim 1, and a housing that holds the liquid crystal device.