JP2006268020A - Liquid crystal display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display which recures the acquisition of a continuity between a first substrate which has a pixel electrode and a second substrate which has a counter electrode even in the liquid crystal display of a thin frame design without adding another process. <P>SOLUTION: In the liquid crystal display which is composed by sandwiching liquid crystals between the first substrate which has a pixel electrode and the second substrate which has a counter electrode, a barrier is provided between a sealing material and a conducting part which is formed of a conductive material for electrically connecting the pixel electrode and the counter electrode when arranging the pixel electrode and the counter electrode so that they turn inward and are glued together with the sealing material, thereby securing the acquisition of a continuity in the conducting part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid crystal display device. Furthermore, the present invention relates to a technique for improving the quality of a liquid crystal display device.

  In recent years, demand for liquid crystal display devices as flat panel displays has increased due to the advantages of being thin, lightweight, and capable of driving with low power consumption. There are various modes even if it is just a liquid crystal display. In a liquid crystal display using a nematic liquid crystal, a Twisted Nematic (TN) mode, a Vertical Alignment (VA) mode, an In Plane Switching (IPS) mode, an Optically Compensated Bend (OCB) ) Mode. In addition, a ferroelectric liquid crystal mode and an antiferroelectric liquid crystal mode, which have a faster response speed than nematic liquid crystals, have been proposed. In addition, a Polymer Dispersed Liquid Crystal (PDLC) mode in which liquid crystal is contained in a polymer has been proposed.

  Many other modes have been proposed, but in liquid crystal displays, the phenomenon that the liquid crystal passes or does not pass light is to control the birefringence, optical rotation and scattering of the liquid crystal by applying a voltage to the liquid crystal. It is done by.

  There are two types of driving methods for the liquid crystal display device, a passive driving method and an active matrix driving method, but the active liquid crystal mode is driven by applying a voltage between the upper and lower substrates such as the TN mode, VA mode, and OCB mode. In this case, since a voltage is applied through a flexible print circuit (FPC) bonded to the active matrix substrate, in order to generate a potential difference between the upper and lower substrates, the counter electrode of the counter substrate is connected to the active matrix substrate. A conductive portion (common contact portion) that conducts to the connection wiring is required.

  The conductive part is generally formed by applying a mixture of a conductive material in a sealing material to one of the conductive parts of the upper and lower substrates, bonding the upper and lower substrates together, and forming the conductive part on the conductive part. Is brought into contact with the upper and lower substrates.

  However, when the conducting part is close to the insulating sealing material for sealing the liquid crystal, that is, when the frame is narrowed, the sealing material covers the conducting part when the upper and lower substrates are bonded together, and the conductive material becomes the upper and lower substrates. Therefore, there is a problem in that the continuity cannot be obtained because both of the first and second sides cannot be contacted.

  On the other hand, a device has been devised in which a groove is formed in one of a pair of substrates so that a sealing material that covers the conductive portion as described above flows into the groove (for example, see Patent Document 1). .)

However, when the above method is used, it is necessary to previously form a groove on one side of the substrate using a laser or the like, which causes a problem that a new process is increased.
JP-A-6-273777

  Accordingly, in view of the above problems, the present invention provides a liquid crystal display that can reliably obtain conduction in a conduction portion even when the frame is narrowed without increasing the number of new steps. Objective.

  In order to solve the above problem, in a liquid crystal display device in which liquid crystal is sandwiched between a first substrate on which a pixel electrode and a connection wiring are formed and a second substrate on which a counter electrode is formed, the pixel electrode faces the pixel electrode. When the electrodes are placed inside and pasted together with a sealing material, a conductive part made of a conductor is formed to electrically connect the position where the sealing material is formed and the connection wiring and the counter electrode. It is characterized in that a barrier is provided between the position and the position.

  According to the configuration of the invention, in a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate, a pixel electrode formed on the first substrate, a connection wiring, and a second substrate The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inside, and around the first substrate and the second substrate. A liquid crystal display characterized by having a conductor bonded to a sealing material provided therein, electrically connecting a connection wiring and a counter electrode inside the sealing material, and providing a barrier between the sealing material and the conductor. Device.

  In another configuration of the liquid crystal display device of the present invention, a pixel electrode, a connection wiring, a driver circuit, a conductor, and a barrier are formed over a first substrate, and a counter electrode, A color filter and a columnar spacer are formed, and the first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are inside, and are provided around the first substrate and the second substrate. The conductive material is provided inside the sealing material, and the connection wiring and the counter electrode are electrically connected, and the barrier is provided between the sealing material and the conductive material. It is characterized by. Note that the barrier is not limited to being provided on the first substrate, and may be formed on the second substrate or on the first substrate and the second substrate.

  In the present invention, the barrier formed on the first substrate or the second substrate is arranged around the conductor in the shape of a circle, an ellipse, a triangle, a quadrangle, or a polygon as viewed from the substrate surface. It is characterized by. Note that the barrier may be in contact with the conductor or may have a space between the conductor. In the case where a space is provided between the barrier and the conductor, the space is depressurized, and a pressure difference between the space and the outside of the barrier is generated, thereby improving the adhesion between the first substrate and the second substrate. Can be improved.

  The barrier of the present invention is formed of an organic insulating material. Note that acrylic (including photosensitive acrylic), polyimide (including photosensitive polyimide), siloxane, or the like can be used as the organic insulating material.

  In the case where the barrier and the columnar spacer are formed on the same substrate, they are simultaneously formed of the same material.

  According to the liquid crystal display device of the present invention configured as described above, it is possible to prevent the seal portion and the conductive portion from contacting each other when the first and second substrates are bonded together. Accordingly, since the conduction can be firmly established at the conduction portion, the quality of the liquid crystal display device can be improved. Further, by surrounding the conductor with a barrier, the liquid crystal is not in contact with the conductor during drop bonding (ODF), and the solvent contained in the conductor can be prevented from being mixed with the liquid crystal. Therefore, impurities are not mixed in the liquid crystal, and a reduction in voltage holding ratio can be prevented.

  The present invention can be used on either the active matrix substrate side or the counter substrate side.

  In addition, any liquid crystal mode can be used as long as it is a liquid crystal mode in which a conducting portion is provided between the upper and lower substrates. Furthermore, the present invention can be used regardless of the type of liquid crystal display such as a transmissive type, a reflective type, and a transflective type.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present invention can be implemented in many different modes, and those skilled in the art can easily understand that the modes and details can be variously changed without departing from the spirit and scope of the present invention. Is done. Therefore, the present invention is not construed as being limited to the description of this embodiment mode. Note that in all the drawings for describing the embodiments, the same portions or portions having similar functions are denoted by the same reference numerals, and repetitive description thereof is omitted.

(Embodiment 1)
Here, the liquid crystal display device will be described with reference to FIGS. 1, 2, 3, and 4.

  FIG. 1A shows an overall view of a liquid crystal display device of the present invention. A first substrate 1210 which is an active matrix substrate on which pixel electrodes are formed and a second substrate 1204 on which a counter substrate is formed are bonded to each other with a sealant 1205, and a liquid crystal 1280 is filled in the sealant 1205. Yes. Over the first substrate 1210, a signal line driver circuit 1200, a scan line driver circuit 1201, and a pixel region 1202 in which pixel electrodes are formed in a matrix are formed.

  A barrier 1260 is provided between the conductor 1270 and the sealant 1205 that are electrically connected to each other between the first substrate 1210 and the second substrate 1204. Then, an FPC 1209 is attached to the first substrate 1210.

  FIG. 1B is a cross-sectional view taken along the line A-A ′ in FIG. FIG. 2 shows a state before the first substrate 1210 and the second substrate 1204 are bonded to each other. A signal line driver circuit 1200 including a CMOS circuit having an n-channel TFT 1223 and a p-channel TFT 1224 over a first substrate 1210 is shown. Preferably, the n-channel TFT 1223 and the p-channel TFT 1224 are formed so as to have a crystalline semiconductor film in which crystal grains are aligned by laser annealing using a pulse laser. Particularly preferably, a channel formation region is formed from one crystal grain. The TFT forming the signal line driver circuit 1200 and the scan line driver circuit 1201 shown in FIG. 1A may be formed of a CMOS circuit, a PMOS circuit, or an NMOS circuit.

  The pixel region 1202 includes a switching TFT 1211 and a capacitor element 1245. Preferably, the switching TFT 1211 is formed to have a crystalline semiconductor film in which crystal grains are aligned by laser annealing using a pulse laser. Particularly preferably, a channel formation region is formed from one crystal grain.

  Although the top gate TFT has been described as an example in FIG. 1, the present invention can be applied regardless of the TFT structure. For example, the present invention can be applied to a bottom gate type (reverse stagger type) TFT or a forward stagger type TFT. It is possible. Further, the TFT is not limited to a single-gate TFT, and may be a multi-gate TFT having a plurality of channel formation regions, for example, a double-gate TFT. Further, the pixel portion may be formed by a TFT (a-Si TFT) using an amorphous silicon film.

  The capacitor 1245 includes a semiconductor film to which an impurity is added and a gate insulating film sandwiched between the gate electrode and the gate electrode. Note that the TFT in the pixel region 1202 does not need to have high crystallinity as compared with the signal line driver circuit 1200 and the scan line driver circuit 1201. An insulator 1214 is provided so as to cover the n-channel TFT 1223, the p-channel TFT 1224, the switching TFT 1211, and the capacitor 1245. A pixel electrode 1250 connected to one electrode of the switching TFT 1211 is provided over the insulator 1214, and a connection wiring 1208 for connecting to the FPC 1209 is provided. Depending on the structure of the active matrix, the connection wiring 1208 and the insulator 1214 may overlap in several layers.

  The type of pixel electrode is different between a transmissive display device and a reflective display device. In the case of a transmissive display device, the pixel electrode 1250 is formed using a light-transmitting material. Examples of the light-transmitting material include indium tin oxide (ITO), zinc oxide (ZnO), indium zinc oxide (IZO), and zinc oxide added with gallium (GZO).

  On the other hand, in the case of a reflective display device, the pixel electrode is a metal electrode having a high reflectance. Specifically, aluminum, silver or the like is used, and when it is desired to make the surface uneven, the base material may be an uneven structure, or an oxidized material such as alumina or titanium oxide may be used.

  In the case of a transflective display device, a transmissive material and a reflective material are used for the pixel electrode.

  An alignment film 1206 is provided on the pixel electrode and subjected to a rubbing process. This alignment film 1206 and rubbing treatment may be necessary or unnecessary depending on the mode of the liquid crystal used.

  The second substrate 1204 which is a counter substrate is provided with a black matrix 1253 at a position overlapping with the signal line driver circuit 1200 and with a color filter and a protective film 1252 at least at a position overlapping with the pixel region 1202. In the case where the color display is displayed by a color sequential method called field sequential, a color filter is not provided.

  A columnar spacer 1255 is provided on the second substrate 1204 over which the counter electrode 1251 is formed. The columnar spacer 1255 is for maintaining a gap between the first substrate 1210 and the second substrate 1204. This columnar spacer is also called a photolithography spacer, a post spacer, a scallop spacer, or a column spacer. In this embodiment, the columnar spacers are unified. As a method for manufacturing the columnar spacer 1255, an organic insulating material such as photosensitive acrylic is applied to the entire surface of the substrate by a spin coating method, and this is performed through a series of photolithography steps, thereby leaving the photosensitive acrylic remaining on the substrate. Serves as a spacer. With this method, depending on the mask pattern at the time of exposure, it is possible to expose where the spacer is to be placed, so by arranging this column spacer in the part where the liquid crystal does not drive, not only the gap between the upper and lower substrates is maintained, but also Can also prevent light leakage.

  Simultaneously with the formation of the columnar spacer 1255, a barrier 1260 is provided between the conductor 1270 and the sealant 1205. Therefore, when the columnar spacer 1255 is provided on the first substrate 1210, a barrier is provided on the first substrate 1210. Further, the barrier 1260 may be formed by a process other than the process for forming the columnar spacer 1255. In the case of the VA mode, a structure called a rib is formed. A barrier 1260 may be provided simultaneously with the formation of the rib.

  As the shape of the barrier 1260, it is only necessary that the barrier 1260 be formed between the sealant 1205 and the conductor 1270. Therefore, the barrier 1260 may surround the conductor 1270 as shown in FIG. That is, the conductor 1270 may be surrounded by a circle as shown in FIG. 3A, may be surrounded by a square as shown in FIG. 3B, or surrounded by a trapezoid as shown in FIG. 3D may be enclosed like a hexagon as shown in FIG. 3D, or may be enclosed twice as shown in FIG. You may be surrounded in triple. Alternatively, a structure may be employed in which the sealant 1205 and the conductor 1270 are partially cut off even if they are not completely enclosed as shown in FIG. Further, as shown in FIG. 3H, by eliminating a space between the conductor 1270 and the barrier 1260, the area can be reduced. The shape of the barrier 1260 in a cross-sectional view is a square in FIGS. 1B and 2, but may be a trapezoidal shape or a shape with rounded corners.

  Note that it is more preferable that the barrier 1260 be formed over the same substrate as the columnar spacer 1255 described above because the barrier 1260 can be formed using the same material as the columnar spacer 1255 at the same time.

  Note that the barrier 1260 is formed between the sealant 1205 and the conductor 1270 so that when the first substrate 1210 and the second substrate 1204 are bonded to each other with the sealant 1205, the sealant 1205 attaches the conductor 1270. It is possible to prevent conduction failure due to covering. Accordingly, since a desired potential difference can be given between the pixel electrode 1250 formed over the first substrate 1210 and the counter electrode 1251 formed over the second substrate 1204, the display performance is excellent. Can be.

  In the case where the height of the columnar spacer 1255 in the pixel region 1202 is higher than the height of the conductive portion, the sealant 1205 gets over the barrier 1260 when the first substrate 1210 and the second substrate 1204 are bonded to each other. Because of fear, a barrier 1260 may be provided on both the first substrate 1210 and the second substrate 1204 as illustrated in FIG. However, in this case, the number of steps of the substrate on which the columnar spacer 1255 is not formed (in the case of this embodiment, the first substrate 1210) increases.

  An alignment film 1207 is provided and a rubbing process is performed. Similar to the first substrate 1210, the second substrate 1204 may or may not need an alignment film and a rubbing process depending on the mode of liquid crystal to be used.

  A sealant 1205 and a conductor 1270 are applied to the second substrate 1204. Note that as a coating method, a liquid ejection method, an inkjet method, a spin coating method, a roll coating method, a slot coating method, a dip method, or the like is preferably used. In FIG. 2, the sealant 1205 and the conductor 1270 are provided on the second substrate 1204, but may be provided on the first substrate 1210. As the sealing material 1205, an epoxy resin material or the like is used, and exhibits insulating properties. On the other hand, in the conductor 1270, a conductive material such as Au is added to the seal material used in the seal portion. The conductor 1270 connects the connection wiring 1208 formed over the first substrate 1210 and the counter electrode 1251 over the second substrate 1204.

  As shown in FIG. 1B, the first substrate 1210 and the second substrate 1204 are attached to each other. The shape to which the sealing material 1205 is applied varies depending on the method of injecting the liquid crystal 1280. In the general vacuum injection method, the shape of the sealing material 1205 is a shape with a hole in one place, but the shape in the case of the dropping vacuum bonding method is a loop shape with a closed hole as shown in FIG. Need to be.

  A liquid crystal 1280 is injected between the first substrate 1210 and the second substrate 1204. Injecting the liquid crystal 1280 is usually performed in a vacuum. When not carried out in a vacuum, two or more openings are formed in the sealing material and injected using a capillary phenomenon. In addition, when liquid crystal is put by a dropping vacuum bonding method, the liquid crystal 1280 is dropped on the first substrate 1210 or the second substrate 1204 before the first substrate 1210 and the second substrate 1204 are bonded to each other in the vacuum. Paste together.

  Then, the first substrate 1210 and the second substrate 1204 are divided into a panel shape. If the opening is formed in the sealing material at this time, the opening is sealed with the sealing material. Further, a first polarizing plate 1290 is provided outside the first substrate 1210 and a second polarizing plate 1295 is provided outside the second substrate 1204 in order to increase contrast. Note that in the case of a reflective display device, the first polarizing plate 1290 may not be necessary.

  As described above, the structure of the liquid crystal display device can be improved because the structure for preventing conduction failure due to the sealing material can be provided without increasing the number of new steps in the conventional liquid crystal display device manufacturing process. Further, the liquid crystal mode of the liquid crystal display device in this embodiment mode corresponds to all liquid crystal modes in which a conductor 1270 is provided between upper and lower substrates in a liquid crystal display device employing active matrix driving, and has a wide application range. A display device can be provided.

(Embodiment 2)
The liquid crystal display device formed by implementing Embodiment Mode 1 can be used for various electronic devices. That is, these liquid crystal display devices can be incorporated in a display portion of an electronic device as described below.

  Such electronic devices include television receivers, video cameras, digital cameras, projectors, head-mounted displays (goggles type displays), car navigation systems, car stereos, personal computers, personal digital assistants (mobile computers, mobile phones or electronic books). Etc.). Examples of these are shown in FIGS.

  FIG. 5A illustrates a television receiver, which can be completed by incorporating the liquid crystal display device described in Embodiment 1 into a housing 2001. Note that a display screen 2002 is formed by the liquid crystal display device of the present invention. In addition, a speaker 2003, an operation switch 2004, and the like are provided as appropriate.

  By including the liquid crystal display device of the present invention, the poor electrical connection in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved. Machine can be provided.

  FIG. 5B illustrates a video camera, which includes a main body 2101, a display portion 2102, an audio input portion 2103, operation switches 2104, a battery 2105, an image receiving portion 2106, and the like. Note that a display portion 2102 is formed by the liquid crystal display device of the present invention.

  By including the liquid crystal display device of the present invention, since the electrical connection failure in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved, the video camera having better display performance than before Can be provided.

  FIG. 5C illustrates a mobile computer, which includes a main body 2201, a camera unit 2202, an image receiving unit 2203, an operation switch 2204, a display unit 2205, and the like. Note that the display portion 2205 is formed by the liquid crystal display device of the present invention.

  By including the liquid crystal display device of the present invention, since the electrical connection failure in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved, the mobile computer has better display performance than before. Can be provided.

  FIG. 5D shows a player using a recording medium (hereinafter referred to as a recording medium) on which a program is recorded, and includes a main body 2401, a display portion 2402, a speaker portion 2403, a recording medium 2404, an operation switch 2405, and the like. This player uses a DVD, CD, or the like as a recording medium, and can perform music appreciation, movie appreciation, games, and the Internet. Note that the display portion 2402 is formed by the liquid crystal display device of the present invention.

  By including the liquid crystal display device of the present invention, since the electrical connection failure in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved, the recording medium is superior in display performance than before. Can be provided.

  FIG. 5E shows a digital camera, which includes a main body 2501, a display portion 2502, an eyepiece portion 2503, operation switches 2504, an image receiving portion (not shown), and the like. Note that a display portion 2502 is formed by the liquid crystal display device of the present invention.

  By including the liquid crystal display device of the present invention, since the electrical connection failure in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved, the digital camera having better display performance than before Can be provided.

  FIG. 6 shows one mode of a mobile phone including the liquid crystal display device of the present invention. A liquid crystal display device 2601 is incorporated in a housing 2602 so as to be detachable. The shape and dimensions of the housing 2602 can be changed as appropriate in accordance with the size of the liquid crystal display device 2601. A housing 2602 to which the liquid crystal display device 2601 is fixed is fitted to a printed board 2603 and assembled as a module.

  The liquid crystal display device 2601 is connected to the printed circuit board 2603 through the FPC 2604. A signal processing circuit 2608 including a speaker 2605, a microphone 2606, a transmission / reception circuit 2607, a CPU, a controller, and the like is formed over the printed board 2603. Such a module, the input means 2609, and the battery 2610 are combined and housed in a housing 2611. The pixel portion of the liquid crystal display device 2601 is arranged so as to be visible from an opening window formed in the housing 2611.

  By including the liquid crystal display device of the present invention, since the poor electrical connection in the conductive portion that electrically connects the pixel electrode and the counter electrode is improved, the mobile phone has better display performance than before. Can be provided.

  The mobile phone according to the present embodiment can be transformed into various modes depending on the function and application. For example, the above-described effects can be achieved by a configuration including a plurality of liquid crystal display devices or a configuration in which a housing is divided into a plurality of units and opened and closed by a hinge.

  As described above, the application range of the present invention is extremely wide and can be applied to electronic devices in various fields.

4A and 4B illustrate a structure of a liquid crystal display device of the present invention. 4A and 4B illustrate a structure of a liquid crystal display device of the present invention. 4A and 4B illustrate a shape of a barrier of a liquid crystal display device of the present invention. 4A and 4B illustrate a structure of a liquid crystal display device of the present invention. FIG. 14 illustrates an example of an electronic device. FIG. 14 illustrates an example of an electronic device.

Explanation of symbols

1200 Signal line driver circuit 1201 Scan line driver circuit 1202 Pixel region 1204 Substrate 1205 Sealing material 1206 Alignment film 1207 Alignment film 1208 Connection wiring 1209 FPC
1210 Substrate 1211 Switching TFT
1214 Insulator 1223 n-channel TFT
1224 p-channel TFT
1245 Capacitor element 1250 Pixel electrode 1251 Counter electrode 1252 Protective film 1253 Black matrix 1255 Columnar spacer 1260 Barrier 1270 Conductor 1280 Liquid crystal 1290 First polarizing plate 1295 Second polarizing plate 2001 Housing 2002 Display screen 2003 Speaker 2004 Operation switch 2101 Main body 2102 Display unit 2103 Audio input unit 2104 Operation switch 2105 Battery 2106 Image receiving unit 2201 Main unit 2202 Camera unit 2203 Image receiving unit 2204 Operation switch 2205 Display unit 2401 Main unit 2402 Display unit 2403 Speaker unit 2404 Recording medium 2405 Operation switch 2501 Main unit 2502 Display unit 2503 Eye unit 2504 Operation switch 2601 Liquid crystal display device 2602 Housing 2603 Printed circuit board 2604 FPC
2605 Speaker 2606 Microphone 2607 Transmission / reception circuit 2608 Signal processing circuit 2609 Input means 2610 Battery 2611 Case

Claims (15)

In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
A pixel electrode and connection wiring formed on the first substrate, and a counter electrode formed on the second substrate;
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
A conductor for electrically connecting the connection wiring and the counter electrode inside the sealant;
A liquid crystal display device, wherein a barrier is provided between the sealing material and the conductor. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a drive circuit, a connection wiring, and a conductor are formed,
A counter electrode, a color filter, a barrier, and a columnar spacer are formed on the second substrate.
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The liquid crystal display device, wherein the barrier is formed simultaneously with the columnar spacer and is provided between the sealing material and the conductor. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a drive circuit, a connection wiring, a conductor and a barrier are formed,
A counter electrode, a color filter, and a columnar spacer are formed on the second substrate,
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The liquid crystal display device, wherein the barrier is provided between the sealing material and the conductor. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
A pixel electrode and connection wiring formed on the first substrate, and a counter electrode formed on the second substrate;
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
A conductor for electrically connecting the connection wiring and the counter electrode inside the sealant;
Having a barrier around the conductor;
The liquid crystal display device, wherein the barrier is arranged in a circular shape, an elliptical shape, a triangular shape, a rectangular shape, or a polygonal shape as viewed from the substrate surface. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a drive circuit, a connection wiring, and a conductor are formed,
A counter electrode, a color filter, a barrier, and a columnar spacer are formed on the second substrate.
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The barrier is formed at the same time as the columnar spacer, and is arranged around the conductor in a circular, elliptical, triangular, quadrangular, or polygonal shape when viewed from the substrate surface. . In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a drive circuit, a connection wiring, a conductor and a barrier are formed,
A counter electrode, a color filter, and a columnar spacer are formed on the second substrate,
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The liquid crystal display device, wherein the barrier is arranged around the conductor in a circular shape, an elliptical shape, a triangular shape, a rectangular shape, or a polygonal shape as viewed from the substrate surface. In Claims 4 to 6,
The liquid crystal display device, wherein the barrier formed on the first substrate or the second substrate is in contact with the conductor. In Claims 4 to 6,
A liquid crystal display device, comprising: a space between the barrier and the conductor formed on the first substrate or the second substrate, wherein the space is decompressed. In claims 1 to 8,
A liquid crystal display device, wherein a plurality of the barriers formed on the first substrate or the second substrate are provided between the sealing material and the conductor. In claims 1 to 9,
The liquid crystal display device, wherein the barrier and the columnar spacer are formed of the same organic insulating material. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a driving circuit, a connection wiring, a conductor, and a first barrier are formed,
On the second substrate, a counter electrode, a color filter, a columnar spacer, and a second barrier are formed,
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The liquid crystal display device, wherein the first and second barriers are provided between the sealing material and the conductor. In a liquid crystal display device in which a liquid crystal material is sandwiched between a first substrate and a second substrate,
On the first substrate, a pixel electrode, a driving circuit, a connection wiring, a conductor, and a first barrier are formed,
On the second substrate, a counter electrode, a color filter, a columnar spacer, and a second barrier are formed,
The first substrate and the second substrate are arranged so that the pixel electrode and the counter electrode are on the inner side, and are sealing materials provided around the first substrate and the second substrate. Pasted together
The conductor is provided inside the sealing material, and electrically connects the connection wiring and the counter electrode,
The liquid crystal display device, wherein the first and second barriers are arranged around the conductor in a circular, elliptical, triangular, quadrangular, or polygonal shape when viewed from the substrate surface. In claims 11 to 12,
The liquid crystal display device, wherein the first barrier formed on the first substrate or the second substrate is in contact with the conductor. In claims 11 to 12,
There is a space between the first barrier and the second barrier formed on the first substrate or the second substrate and the conductor, and the space is decompressed. A characteristic liquid crystal display device. In claims 11 to 14,
The liquid crystal display device, wherein the first barrier, the second barrier, and the columnar spacer are formed of the same organic insulating material.

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