JP2000284309A - Production of liquid crystal display device and inspection method as well as liquid crystal display device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a process for producing a liquid crystal display device which is capable of producing the liquid crystal display device having terminal electrodes formed of metal allowing the easy formation of an insulative oxidized film on the surface by inspecting the lighting thereof with high reliability. SOLUTION: This process for producing the liquid crystal display device 10 has a stage for foming a liquid crystal panel substrate 30 having the terminal electrodes consisting of aluminum corresponding to respective electrodes for display, a stage for forming the liquid crystal display device 10 by sealing liquid crystals between a pair of the liquid crystal panel substrates 2 and 30, a stage for connecting a high-voltage source 74 to a rubber connector 66 in the state of bringing the rubber connector 66 for inspection into abutment on the terminal electrode and a stage for carrying out the lighting inspection of the liquid crystal display device 10 by changing over the connection to the rubber connector 66 to an inspection device 80 in the state of maintaining the state that the rubber connector 66 is brought into abutment on the terminal electrode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing and inspecting a liquid crystal display device, a liquid crystal display device, and electronic equipment.

[0002]

2. Description of the Related Art In a reflective or transflective liquid crystal display device, a display electrode of a rear liquid crystal panel substrate of two liquid crystal panel substrates is made of a reflective material such as aluminum. In many cases, the display electrode is formed of a metal having a high efficiency so that the display electrode also functions as a reflection plate. In such a liquid crystal display device, the terminal electrodes formed on the liquid crystal panel substrate are also generally formed of a metal such as aluminum used for the display electrode of the liquid crystal panel substrate on the rear side.

However, when a terminal electrode is formed of aluminum, the surface of the aluminum is oxidized in air and is covered with an insulating aluminum oxide film. Poor contact often occurs in connection made to the electrodes, for example, connection by a rubber connector. The connection to the terminal electrode by the rubber connector
Since it can be quickly connected to a large number of terminal electrodes, it is also used for lighting inspection of liquid crystal display devices. But,
When the terminal electrode is formed of a metal having a property of being covered with an insulating oxide film, such as aluminum, there is a problem that such a contact failure lowers the reliability of the lighting inspection.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a liquid crystal display device having a terminal electrode formed of a metal on which an insulating oxide film is easily formed on the surface. An object of the present invention is to provide a liquid crystal display device manufacturing method and an inspection method, a liquid crystal display device, and an electronic device that can be manufactured by performing a lighting inspection with high reliability.

[0005]

(1) In a method of manufacturing a liquid crystal display device according to the present invention, a liquid crystal display is formed by enclosing liquid crystal between a pair of liquid crystal panel substrates having display electrodes on the inner surface side. A method of manufacturing a device, comprising: forming a pair of liquid crystal panel substrates including the display electrodes and terminal electrodes corresponding to the respective display electrodes; and forming a liquid crystal between the pair of liquid crystal panel substrates. Encapsulating to form a liquid crystal display device; connecting a high voltage source to the rubber connector with the rubber connector for inspection in contact with the terminal electrode; and contacting the rubber connector with the terminal electrode. Switching the connection to the rubber connector to a connection to an inspection device while performing the lighting inspection of the liquid crystal display device while maintaining the connected state.

Here, the high-voltage power supply is a power supply that generates a voltage considerably higher than a voltage normally applied to a liquid crystal display device, and generates a voltage of, for example, 20 to 50 V.

In the method of manufacturing a liquid crystal display device according to the present invention, after a rubber connector for inspection is brought into contact with terminal electrodes formed corresponding to the respective display electrodes and a high voltage is applied, While the rubber connector is kept in contact with the terminal electrode, the connection to the rubber connector is switched to the connection to the inspection device, and the lighting inspection of the liquid crystal display device is performed. According to the present inventor, once the high voltage is applied to the rubber connector in contact with the terminal electrode in this way, as long as the rubber connector keeps in contact with the terminal electrode, the terminal electrode becomes insulative. It has been confirmed that the electrical connection between the rubber connector and the terminal electrode can be reliably obtained even when the terminal is covered with a thin film or the like. By performing the lighting inspection of the liquid crystal display device in this state, the lighting inspection of the liquid crystal display device is performed with high reliability, and the liquid crystal display device, whose proper operation has been confirmed, can proceed to the next manufacturing process. Therefore, even when the terminal electrodes are covered with an insulating thin film or the like, the lighting inspection of the liquid crystal display device is performed with high reliability,
A liquid crystal display device that operates normally can be properly selected and manufactured. Also, since the connection to many terminal electrodes can be performed at once by using a rubber connector, the lighting inspection can be performed.
There is no need to perform a lighting test by pressing an inspection terminal against each of the many terminal electrodes, and the lighting test can be performed quickly.

(2) In the method of manufacturing a liquid crystal display device according to the present invention, the terminal electrode is formed of a metal containing aluminum as a main component.

In the method of manufacturing a liquid crystal display device according to the present invention, even when an insulating oxide film is formed on the terminal electrode because it is made of aluminum, the lighting inspection of the liquid crystal display device is accurately performed and the liquid crystal display device can be properly operated. A liquid crystal display device having a proper operation can be appropriately selected and manufactured.

(3) According to the present invention, the liquid crystal display device is manufactured by the manufacturing method.

(4) An electronic apparatus according to the present invention includes the liquid crystal display device according to claim 3 as a display unit.

(5) A method for testing a liquid crystal display device according to the present invention is directed to a liquid crystal display device in which liquid crystal is sealed between a pair of liquid crystal panel substrates having display electrodes and terminal electrodes on the inner surface side. In the inspection method, a step of connecting a high voltage source to the rubber connector in a state where the rubber connector for inspection is in contact with the terminal electrode, and maintaining a state in which the rubber connector is in contact with the terminal electrode. While switching, the connection to the rubber connector is switched to the connection to the inspection device,
Performing a lighting inspection of the liquid crystal display device.

Here, the high-voltage power supply is a power supply that generates a voltage considerably higher than a voltage normally applied to a liquid crystal display device, and generates a voltage of, for example, 20 to 50 V.

In the method of manufacturing a liquid crystal display device according to the present invention, after a rubber connector for inspection is brought into contact with terminal electrodes formed corresponding to the respective display electrodes and a high voltage is applied, While the rubber connector is kept in contact with the terminal electrode, the connection to the rubber connector is switched to the connection to the inspection device, and the lighting inspection of the liquid crystal display device is performed. According to the present inventor, once the high voltage is applied to the rubber connector in contact with the terminal electrode in this way, as long as the rubber connector keeps in contact with the terminal electrode, the terminal electrode becomes insulative. It has been confirmed that the electrical connection between the rubber connector and the terminal electrode can be reliably obtained even when the terminal is covered with a thin film or the like. By performing the lighting inspection of the liquid crystal display device in this state, the lighting inspection of the liquid crystal display device can be performed with high reliability even when the terminal electrodes and the interconnecting electrodes are covered with an insulating thin film or the like. In addition, since the lighting test can be performed by connecting a large number of terminal electrodes at once using a rubber connector, there is no need to press the inspection terminal against each of the many terminal electrodes to perform the lighting test. It can be performed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below more specifically with reference to the drawings.

1. 1. Liquid Crystal Display FIG. 1 is a schematic sectional view showing a liquid crystal display 10 according to the present embodiment. As shown in FIG.
Has a polarizer 14 and a phase difference plate 16 arranged on the front side (display surface side) of the liquid crystal cell 18, and a light guide plate 64 and a polarizer 60 as an illumination device are arranged on the back side of the liquid crystal cell 18. It is formed. In FIG. 1, although there is a gap between the elements constituting the liquid crystal display device,
This is for the convenience of illustration, and in actuality, the respective elements are in a state of being substantially in close contact with each other.

The phase difference plate 16 is composed of an STN type liquid crystal cell 18.
This is to eliminate coloring caused by the refractive index anisotropy of. The retardation plate 16 is formed as a polymer film formed by stretching a polymer material such as polystyrene or polycarbonate, and has a refractive index anisotropy.

The light guide plate 64 is for guiding light from a light source 66 into, for example, a panel fixing frame 68 to be incident on an end face 65 and to emit the light toward the liquid crystal cell 18. The light guide plate 64 is formed of, for example, a polyolefin resin that is optically substantially isotropic. The panel fixing frame 68 for guiding the light from the light source 66 to the light guide plate 64 is made of an optically isotropic polyolefin resin, a polycarbonate resin, an acrylic resin, or the like. The light emitted from the light source 66 is transmitted to the light guide plate 6 by the panel fixing frame 68.
The light is guided to the end face 65 of the light guide 4, introduced into the light guide plate 64, and emitted toward the liquid crystal cell 18. In addition, as the light source 52, an LED (light emitting diode), a fluorescent tube, or the like is used.

The liquid crystal cell will be described in detail below.

2. 1. Liquid Crystal Cell As shown in a schematic cross-sectional view of a part of FIG. The liquid crystal panel substrate 30 on which the electrodes 32 are formed on one side is separated from the liquid crystal panel substrate 30 by a gap material (not shown) or the like, and the transparent electrode 22 of the liquid crystal panel substrate 20 and the display electrode 32 of the liquid crystal panel substrate 30 are separated. The liquid crystal cell 18 is a simple matrix type liquid crystal cell 18 facing in a lattice. An STN type liquid crystal 50 is filled between the pair of liquid crystal panel substrates 20 and 30, and the liquid crystal panel substrates 20 and 30 are filled.
Are sealed by a sealing material 52. In FIG. 1, a pair of liquid crystal panel substrates 2
Although 0 and 30 are drawn widely apart, this is for clarity of illustration, and in practice, a pair of liquid crystal panel substrates 20 and 30 face each other with a narrow gap of several μm to several tens μm. are doing. In addition, the stripe-shaped transparent electrode 22
Although only a few electrodes 32 are shown in FIG. 1 and the like, they are actually provided as a large number of striped electrodes corresponding to the resolution of matrix display.

Further, on the liquid crystal panel substrate 20 on the display surface side, as schematically shown in FIG. 1, a color filter 24 is provided on a substrate 21, and the surface of the color filter 24 has a flattening film (top). coat) 26. On the surface of the flattening film 26, the stripe-shaped transparent electrode 2 described above is formed.
2 are provided.

In the liquid crystal panel substrate 30 on the rear side, the display electrode 32 provided with a large number of minute openings (not shown) also serves as a transflective film, and the polarizer 60 on the rear side of the liquid crystal cell 18 described above. Transflective liquid crystal display device 1 used together with light guide plate 64 and capable of displaying even in transmission mode
0 is realized.

As shown in FIG. 1 and FIG. 2 which is a schematic plan view, the liquid crystal panel substrate 30 has a substrate 31, display electrodes 32 formed on the substrate 31, and terminal electrodes 4.
0 is formed. In FIG. 2, dotted lines between the display electrodes 32 and the terminal electrodes 40 indicate that a large number of the display electrodes 32 or the terminal electrodes 40 are omitted. Further, the substrate 31
Is a display area 33 used for liquid crystal display facing the liquid crystal.
And 2 of the overhanging region 36 including the terminal electrode 40 and the like.
Divided into two areas.

The display electrode 32 is formed in a display region 33 on the substrate 31 with a metal, for example, a metal containing aluminum as a main component. Therefore, the display electrode 32 is
It has good conductivity and can also act as a reflective film with little coloring and high reflectivity.

The terminal electrode 40 is also formed of a metal, for example, a metal containing aluminum as a main component, and is provided on at least the overhanging region 36 on the substrate 31. In addition,
When the terminal electrode 40 is formed using aluminum,
An aluminum oxide film, which is an insulating oxide film, is easily formed on the terminal electrode.

The liquid crystal display device 10 also includes, in addition to the components shown in FIG. 1, an alignment film provided to face the liquid crystal 24, and a drive circuit for driving the transparent electrode 22 and the display electrode 32. ing.

3. Next, a method for manufacturing the liquid crystal display device 10 of the present embodiment, which is shown in a schematic cross-sectional view in FIG. 1, will be described.

First, in the step of forming the liquid crystal panel substrate 20 on the front side, the color filters 24
Is formed, and a flattening film 26 covering the color filter 24 is formed.
Is formed. Then, a transparent conductive layer such as ITO (Indium) is formed on the flattening film 26 by, for example, sputtering.
Tin Oxide) layer is formed. Next, patterning is performed by photolithography and etching to form the transparent electrode 22 on the flattening film 26 in a predetermined pattern.

In the step of forming the liquid crystal panel substrate 30 on the back side, for example, an aluminum film is formed on the substrate 31 by, for example, sputtering or vapor deposition. Thereafter, the aluminum film is patterned into the shapes of the display electrode 32 and the terminal electrode 40 by photolithography and etching to form the liquid crystal panel substrate 3.
0 is formed.

Then, each of the liquid crystal panel substrates 20,
In the step of printing an alignment film on the liquid crystal panel substrate 2,
An orientation film (not shown) is printed on the inner surface side of 0, 30 and spacers (not shown) for keeping the distance between the facing orientation films constant are dispersed and arranged on one side of the substrate and fired. I do.
Then, rubbing is performed by rubbing the alignment film with a cloth or the like, so that the alignment film has an alignment property.

Next, in the step of assembling the liquid crystal cell 18,
First, a sealing material 52 is printed around one of the liquid crystal panel substrates 20 and 30. Then, the two liquid crystal panel substrates 20 and 30 are adhered to each other, and the sealing material 52 is cured using heat or ultraviolet rays.

In the next step of injecting the liquid crystal 50, the empty liquid crystal display cell 18 is placed with the injection port (not shown) down.
Place the liquid crystal storage at the bottom of the container away from the liquid crystal in the container, and evacuate the container. After that, the inside of the container is returned to the atmospheric pressure with the filling port in the liquid crystal storage. Then
Due to the pressure difference and the capillary phenomenon, the liquid crystal 50
8 is filled. Then, the injection port is sealed.

Next, a retardation plate 16 and a polarizing plate 14 are attached to the front side of the liquid crystal cell 18. Also, the liquid crystal cell 18
A polarizing plate 60 is attached on the back side of the light guide plate, and a light guide plate 64 is disposed.

Then, in the step of performing the lighting inspection of the liquid crystal display device 10, the rubber connector 66 is positioned at a predetermined position on the liquid crystal display device 10, as shown in a schematic diagram in FIG. 3, and the liquid crystal display device 10 is positioned. The connection board 70 is brought into contact with the surface of the rubber connector 66 opposite to the side at a predetermined position, and the rubber connector 66 is maintained in a state where an appropriate pressing force is applied to the rubber connector 66 from the liquid crystal display device 10 and the connection board 70. Is done. The rubber connector is brought into contact with a predetermined position of the overhang region 36 of the liquid crystal panel substrate 30 in the liquid crystal display device 10 as shown as a rubber connector mounting region 38 in FIG. Is achieved.

The rubber connector 66 is shown in FIG.
(A), as shown in a schematic perspective view, an insulating member 67 made of rubber or silicone and having elasticity;
Conductive members 68 made of a metal mainly composed of a body, silver, aluminum or the like are alternately arranged in a zebra shape. FIG. 4B is a bottom view of the rubber connector 66, and the rubber connector 66 has a state in which the insulating members 67 and the conductive members 68 are alternately positioned even at the bottom. In the connection using the rubber connector 66,
Top (top) and bottom (bottom) where pressure is applied
Is a contact surface for electrical connection, and the conductive member 6
The portion 8 comes into contact with the terminal electrode 23 and the like, and electrical connection is obtained. The conductive member 68 is plated with a highly conductive material which is hardly corroded, for example, gold plating, if necessary. The pitch of the conductive members 68 of the rubber connector 66 is the same as that of the terminal electrodes 40 provided on the liquid crystal panel substrate 30.
Much smaller than the pitch. Therefore, if the laminating direction of the insulating member 67 and the conductive member 68 in the rubber connector 66 is substantially parallel to the arrangement direction of the terminal electrodes 40 provided on the liquid crystal panel substrate 30, the liquid crystal panel substrate 30
The insulating member 67 of the rubber connector 66 is always arranged between the adjacent terminals of the terminal electrode 40 provided in the terminal electrode 40, and the terminal electrodes 23 are not short-circuited.

As described above, in a state where the rubber connector 66 for inspection is brought into contact with the terminal electrode 40 of the liquid crystal display device 10, first, by selecting the switch 72 shown in FIG. The high voltage source 74 is connected to the rubber connector 66 and the liquid crystal display device 10. The high-voltage power supply 74 is a power supply that generates a voltage that is considerably higher than the voltage normally applied to the liquid crystal display device 10.
Generates a voltage of 0-50V.

Thereafter, while keeping the state in which the rubber connector 66 is in contact with the terminal electrode 40 of the liquid crystal display device 10,
By switching the switch 72, the rubber connector 66
The switch 72 is switched so that the liquid crystal display device 10 is connected to the inspection device 80. Then, the lighting inspection of the liquid crystal display device 10 is performed, and the liquid crystal display device 10 is selected.

Through the above-described steps, the liquid crystal display device 10 of the present embodiment is completed.

In the method of manufacturing the liquid crystal display device 10 according to the present embodiment, the inspection rubber connector 66 is brought into contact with the terminal electrodes 40 formed corresponding to the respective display electrodes, and a high voltage is applied. After that, the rubber connector 66
While maintaining the state of contacting with the terminal electrode 40, the connection to the rubber connector 66 is switched to the connection to the inspection device 80, and the lighting inspection of the liquid crystal display device 10 is performed. According to the present inventor, as long as the rubber connector 66 is kept in contact with the terminal electrode 40 by once applying a high voltage to the rubber connector 66 contacted with the terminal electrode 40 as described above, It has been confirmed that the electrical connection between the rubber connector 66 and the terminal electrode 40 can be reliably obtained even when the terminal electrode 40 is covered with an insulating thin film or the like. In this state, the lighting inspection of the liquid crystal display device 10 is performed, so that the lighting inspection of the liquid crystal display device 10 is performed, and the liquid crystal display device 10 for which proper operation has been confirmed is selected and manufactured. Therefore, the terminal electrode 40 is made of an insulating thin film,
For example, even when the liquid crystal display device 10 is covered with an aluminum oxide film or the like, the lighting inspection of the liquid crystal display device 10 can be accurately performed, and the liquid crystal display device 10 having a normal operation can be appropriately selected and manufactured. Further, since the lighting inspection can be performed by connecting the large number of terminal electrodes 40 at one time by the rubber connector 66, it is not necessary to press the inspection terminal against each of the large number of terminal electrodes 40 to perform the lighting inspection, which is quick. The lighting inspection can be performed at the same time.

4. Electronic Device Equipped with Liquid Crystal Display Device FIGS. 5A, 5B, and 5C are external views showing examples of electronic devices using the liquid crystal display device 10 of the present embodiment as a display unit. FIG. 5A shows a mobile phone 88 having a liquid crystal display device 10 at the upper front thereof. FIG. 5B shows a wristwatch 92, in which a display unit using the liquid crystal display device 10 is provided at the center of the front of the main body. FIG.
(C) is a portable information device 96, which is a liquid crystal display device 10.
And an input unit 98. These electronic devices are not shown, in addition to the liquid crystal display device 10,
It is configured to include various circuits such as a display information output source, a display information processing circuit, and a clock generation circuit, and a display signal generation unit including a power supply circuit that supplies power to those circuits. For example, in the case of a portable information device, a display image is formed by supplying a display signal generated by a display signal generation unit based on information input from the input unit 98 to the display unit.

The electronic devices into which the liquid crystal display device 10 of the present embodiment is incorporated are not limited to portable telephones, watches, and portable information devices, but may be notebook computers, electronic notebooks, pagers, calculators, POS terminals, IC cards, and the like. And various electronic devices such as a mini-disc player.

5. Modifications The present invention is not limited to the above-described embodiment,
Various modifications can be made within the scope of the present invention or within the equivalent scope of the claims.

5.1 In the above, the display electrode 32
The example in which the transmissive reflection type liquid crystal display device 10 is formed by providing an opening 35 in the upper layer film 34 so as to allow transmission of a part of light. However, even if the display electrode 32 is formed to have a sufficiently small thickness (for example, 10 to 30 nm when formed of aluminum), the display electrode 32 reflects a part of light and transmits a part of the light. Therefore, when the display electrode 32 is formed with such a film thickness, a transflective liquid crystal display device can be formed without providing an opening in the display electrode 32 as in the above-described example.

5.2 In the above description, an example is shown in which the retardation plate 16 is used to eliminate coloring caused by the optical anisotropy of the liquid crystal cell 18 using STN type liquid crystal. When such coloring does not pose a problem, or when a liquid crystal cell using a liquid crystal with a small optical anisotropy, for example, a TN type liquid crystal, is used, the retardation plate 16 is not necessarily required.

5.3 In the above description, an example in which the color filter 24 and the flattening film 26 covering the color filter 24 are provided has been described. However, in the case of a monochrome liquid crystal display device, the color filter 24 and the flattening film 26 are provided. It is not necessary.

5.4 In the above description, the liquid crystal panel substrate 30 on the rear side has the display electrode 32 serving also as a transflective film.
The example of the transflective liquid crystal display device 10 which is used together with the polarizer 60 and the light guide plate 64 on the back side of the liquid crystal cell 18 and can display even in the transmission mode is shown. However, it is also possible to form a reflective liquid crystal display device by forming the display electrode 32 to also serve as a reflective film that does not transmit light. In this case, the polarizer 60 and the light guide plate 64 on the back side of the liquid crystal cell 18 are not required.

5.5 In the above, an example of a simple matrix liquid crystal display device using STN type liquid crystal has been described.
As a liquid crystal display device, speaking of a driving method, a static drive liquid crystal display device, a three-terminal thin film transistor element represented by a TFT (Thin Film Transistor) using a switching element or a TFD (Thin Film Diode)
, An active matrix liquid crystal display device using a two-terminal non-linear element represented by
Various types of liquid crystal display devices such as a liquid crystal display device of a liquid crystal display type, a guest host type, a phase transition type, and a ferroelectric type can be used.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view illustrating a liquid crystal display device according to an embodiment.

FIG. 2 is a schematic plan view showing a liquid crystal panel substrate on the back side of the embodiment.

FIG. 3 is a schematic diagram showing a state in which a lighting inspection of the liquid crystal display device of the embodiment is being performed.

FIG. 4A is a schematic perspective view of a rubber connector, and FIG. 4B is a schematic bottom view of the rubber connector.

FIGS. 5A and 5B are external views showing an electronic device using the liquid crystal display device of the embodiment, wherein FIG. 5A is a mobile phone, FIG. 5B is a wristwatch, and FIG. 5C is a mobile information device.

[Explanation of symbols]

 Reference Signs List 10 liquid crystal display device 18 liquid crystal cell 20 liquid crystal panel substrate (display surface side) 22 transparent electrode 30 liquid crystal panel substrate (rear side) 31 substrate 32 display electrode 40 terminal electrode 50 liquid crystal 66 rubber connector 74 high voltage source 80 inspection device 88 mobile Telephone (electronic equipment) 92 Wrist watch (electronic equipment) 94 Portable information equipment (electronic equipment)

Continued on the front page F-term (reference) 2H088 HA12 JA05 JA06 JA14 JA17 MA20 2H092 GA45 JA01 JA24 MA05 MA13 MA17 NA19 NA30 PA03 PA08 PA10 QA07 QA08 QA10 QA11 QA13 5G435 AA17 BB12 BB15 BB16 CC09 CC12 EE27 GG23 FF23 GG24 FF23 HH12 KK05 KK10 LL07 LL09 LL10 LL12

Claims (5)

[Claims] 1. A method of manufacturing a liquid crystal display device, wherein liquid crystal is sealed between a pair of liquid crystal panel substrates each having a display electrode on an inner surface side, wherein the display electrode and each of the display electrodes are provided. Forming a pair of liquid crystal panel substrates including terminal electrodes corresponding to the electrodes, forming a liquid crystal display device by enclosing liquid crystal between the pair of liquid crystal panel substrates, and testing the terminal electrodes with the terminal electrodes. A step of connecting a high-voltage source to the rubber connector in a state where the rubber connector is in contact with the rubber connector, and connecting the rubber connector to the rubber connector while maintaining the state in which the rubber connector is in contact with the terminal electrode. And performing a lighting test of the liquid crystal display device by switching to connection to the liquid crystal display device. 2. The method according to claim 1, wherein the terminal electrode is formed of a metal containing aluminum as a main component. 3. A liquid crystal display device manufactured by the manufacturing method according to claim 1. 4. An electronic apparatus comprising the liquid crystal display device according to claim 3 as display means. 5. A method for inspecting a liquid crystal display device in which a liquid crystal is sealed between a pair of liquid crystal panel substrates having a display electrode and a terminal electrode on an inner surface side, wherein the terminal electrode has an inspection electrode. A step of connecting a high-voltage source to the rubber connector in a state where the rubber connector is in contact with the rubber connector; and a connection to the rubber connector while the rubber connector is kept in contact with the terminal electrode. Performing a lighting test of the liquid crystal display device by switching to connection to the liquid crystal display device.