JP4600449B2 - Liquid crystal devices and electronic equipment - Google Patents

Description

  The present invention relates to a liquid crystal device suitable for use in displaying various types of information.

  In recent years, a liquid crystal device called a horizontal electric field method has been spotlighted. This method is a method in which the direction of the electric field applied to the liquid crystal is substantially parallel to the substrate, and has an advantage that visual characteristics can be improved as compared with a TN (Twisted Nematic) method or the like. As this horizontal electric field type liquid crystal device, a liquid crystal device such as an IPS (In-Plane Switching) method or a FFS (Fringe Field Switching) method is known. This horizontal electric field type liquid crystal device has a structure in which liquid crystal is sandwiched between two substrates, and has a comb-shaped pixel electrode and a common electrode that generates a horizontal electric field between the pixel electrode, They are provided on the same substrate.

  However, in such a horizontal electric field type liquid crystal device, when a charge is charged on a substrate on which no electrode is provided due to external static electricity or the like, a substrate on which an electrode is provided and a substrate on which no electrode is provided In some cases, an electric field is generated between them, and proper display cannot be performed.

  In Patent Document 1 shown below, a conductive film is provided on each outer surface of a pair of substrates of a liquid crystal display panel, and the conductive films are electrically connected to each other, thereby generating local charging and discharging. A liquid crystal device that prevents this is disclosed.

JP-A-4-51220

  However, since the liquid crystal device described in Patent Document 1 is not configured to release accumulated charges to the outside, a substrate and an electrode provided with electrodes in a horizontal electric field type liquid crystal device are provided. It is impossible to solve the problem that an electric field is generated between the substrate and the substrate that is not formed.

  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 device capable of providing a shielding function capable of releasing charges to the outside.

In one aspect of the present invention, a liquid crystal device includes a liquid crystal display panel in which liquid crystal is sandwiched between two substrates, and a conductive layer formed on an outer surface of at least one of the two substrates. And a flexible substrate electrically connected to the liquid crystal display panel, and one of the two substrates has a protruding portion protruding to the other substrate, On the surface of the overhanging portion, the drive circuit and the flexible substrate are disposed, and a ground wiring of the overhanging portion that is electrically connected to the ground wiring of the flexible substrate is formed. The conductive layer is electrically connected to each other by a tape-shaped conductive member, and the tape-shaped conductive member is disposed across the region where the drive circuit is disposed, It is insulated from the circuit and the tape-shaped conductive member.

The liquid crystal device includes a liquid crystal display panel, a conductive layer, and a flexible substrate. The liquid crystal display panel has a liquid crystal sandwiched between two substrates. Here, of the two substrates, the other substrate has an overhanging portion that overhangs the one substrate. On the surface of the overhanging portion, a drive circuit and the flexible substrate are disposed, and a ground wiring of the overhanging portion that is electrically connected to the ground wiring of the flexible substrate is formed. The ground wiring and the conductive layer of the projecting portion are electrically connected to each other by a tape-shaped conductive member, and the tape-shaped conductive member is disposed across the region where the drive circuit is disposed. Here, the drive circuit and the tape-like conductive member are insulated. Accordingly, in the liquid crystal device in which the ground wiring formed on the surface of the projecting portion and the conductive layer formed on the outer surface of the substrate are electrically connected by the tape-shaped conductive member, the drive circuit and the tape-shaped conductive material are connected. It can prevent that a member short-circuits.

In another mode of the above liquid crystal device, the drive circuit includes a wiring and a driver IC, and the tape-shaped conductive member crosses a region where at least one of the wiring or the driver IC is disposed. Arranged. That is, at least one of the wiring or the driver IC is insulated from the tape-like conductive member. Thereby, it is possible to prevent the wiring or the driver IC and the tape-like conductive member from being short-circuited.

  In a preferred aspect of the liquid crystal device, the conductive layer is an optical sheet having conductivity. Examples of the optical sheet include a polarizing plate.

  In a preferred aspect of the liquid crystal device, the conductive layer is a transparent conductive film formed on an outer surface of at least one of the two substrates.

  In a preferred aspect of the above liquid crystal device, the liquid crystal display panel is a liquid crystal display panel in which a common electrode and a pixel electrode are arranged on one substrate, and the conductive layer is common among the two substrates. The electrode and the pixel electrode are formed on the outer surface of the substrate.

  In another aspect of the present invention, an electronic device including the above-described liquid crystal device as a display portion can be configured.

In still another aspect of the present invention, in the method for manufacturing a liquid crystal device, a driving circuit and a flexible substrate are disposed on the surface of an overhanging portion of one substrate that protrudes from the other substrate, and the flexible substrate and ground wiring is formed in the protruding portion, and a ground wiring of the flexible substrate and the ground wiring of the overhanging portion and a display panel manufacturing process that will be electrically connected, the drive being disposed on the projecting portion A driving circuit covering step of covering at least a part of the circuit with an insulator, a conductive layer setting step of setting a conductive layer on the outer surface of the other substrate, and a region where the driving circuit in the projecting portion is arranged, The conductive layer and the overhanging portion are grounded by a tape-like conductive member disposed across the region where the insulator is provided. Comprising mutually the tape-shaped conductive member attaching step of electrically connecting, the and. By using this method for manufacturing a liquid crystal device, it is possible to prevent the drive circuit and the tape-like conductive member from being short-circuited.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the illumination device of the present invention is applied to a liquid crystal device.

[Configuration of liquid crystal device]
FIG. 1 is a cross-sectional view of a liquid crystal device 100 according to the present embodiment. FIG. 2 is a plan view of the liquid crystal device 100 according to the present embodiment. FIG. 1 is a cross-sectional view taken along the broken line AA ′ of the liquid crystal device 100 of FIG.

  The liquid crystal device 100 mainly includes a lighting device 10 and a liquid crystal display panel 20. The illumination device 10 is mainly composed of a light guide plate 11 and a light source unit 15. The liquid crystal display panel 20 is disposed to face the upper surface side of the light guide plate 11. The lighting device 10 includes a reflection sheet 14 on the lower surface side of the light guide plate 11.

  The light source unit 15 is disposed on the end face of the light guide plate 11 and includes a plurality of LEDs 16 that are point light sources. The light L emitted from each LED 16 enters the light guide plate 11 from the end face of the light guide plate 11. In the light guide plate 11, the light L changes its direction by repeating reflection between the upper and lower surfaces of the light guide plate 11 and is emitted toward the liquid crystal display panel 20.

  The liquid crystal display panel 20 has a display area substantially the same as the light emission area of the light guide plate 11. The liquid crystal display panel 20 is configured by bonding substrates 1 and 2 made of glass or the like through a sealing material 3 to form a cell structure and enclosing a liquid crystal 4 therein. Here, as shown in FIGS. 1 and 2, the substrate 1 has an overhanging portion 30 that overhangs the substrate 2.

  A polarizing plate 12 b is installed on the outer surface of the substrate 1. A polarizing plate 12 a is provided on the outer surface of the substrate 2. As will be described in detail later, a conductive film is formed on the outer surface of the polarizing plate 12a by a transparent conductive member such as ITO (Indium-tin-oxide), and a ground wiring GND of an FPC (Flexible Printed Circuit) 22 The surface of the polarizing plate 12 a on which the conductive film is formed is electrically connected to each other by a tape-shaped conductive member (hereinafter referred to as “conductive tape”) 27. Therefore, the polarizing plate 12a functions as a conductive layer in the present invention.

  For example, a diffusion sheet or a prism sheet is provided as an optical sheet (not shown) between the illumination device 10 and the liquid crystal display panel 20. The diffusion sheet has a role of diffusing the light L emitted from the light guide plate 11 in all directions. The prism sheet has a role of condensing the light L on the liquid crystal display panel 20.

  Here, the internal structure of the liquid crystal display panel 20 will be described. The liquid crystal display panel 20 is a horizontal electric field type liquid crystal display panel. FIG. 3A shows an enlarged cross-sectional view of the liquid crystal display panel 20 in one subpixel. Here, it is assumed that the liquid crystal display panel 20 is, for example, an FFS (Fringe Field Switching) type liquid crystal display panel.

  As described above, the liquid crystal display panel 20 is configured by sealing liquid crystal between the substrate 1 and the substrate 2. On the inner surface of the substrate 1, a common electrode 5 is formed on the entire surface by a transparent conductive member such as ITO. An insulating layer 7 is formed on the entire inner surface of the common electrode 5 with acrylic resin or the like. A pixel electrode 8 is formed on the inner surface of the insulating layer 7 using a transparent conductive member such as ITO. On the other hand, a colored layer 6 is formed on the inner surface of the substrate 2. An alignment film 9 is formed on the inner surface of the colored layer 6.

  FIG. 3B shows a plan view of the pixel electrode 8. As shown in FIG. 3B, the pixel electrode 8 has a comb shape. Specifically, the pixel electrode 8 is composed of a conductive portion 8a, a conductive portion 8b, a conductive portion 8c, a conductive portion 8d, and a conductive portion 8e that are arranged in a straight line and have a linear shape. These conductive portions are integrally formed. The liquid crystal display panel 20 generates a horizontal electric field (lateral electric field) E between the conductive portions 8 a to 8 e of the pixel electrode 8 and the common electrode 5.

  Returning to FIG. 1 and FIG. 2 and continuing the description, a driver IC 21 serving as a liquid crystal driving IC (driver) is directly disposed on the surface of the protruding portion 30 of the substrate 1 by a COG (Chip On Glass) technique. At the end of the liquid crystal display panel 20, an FPC (Flexible Printed Circuit) 22 which is a flexible substrate is disposed. Further, on the surface of the overhanging portion 30 of the substrate 1, for example, wirings 23, 24, and 25 are formed by patterning a copper foil by a photoetching method or the like. Some terminals of the driver IC 21 are electrically connected to the FPC 22 through the wiring 24 formed on the projecting portion 30 of the substrate 1. Drive circuits such as the driver IC 21 and the wirings 23, 24, and 25 are covered with an insulator 26. In FIG. 2, the drive circuits such as the driver IC 21 and the wirings 23, 24, and 25 are indicated by broken lines in order to clarify the positional relationship with the insulator 26. In the following, the “drive circuit” is a concept including all electric elements such as driver ICs and wirings disposed on the surface of the overhanging portion 30 of the substrate 1.

  The pixel electrode 8 is electrically connected to some terminals of the driver IC 21 through the wiring 23 formed on the protruding portion 30 of the substrate 1. The common electrode 5 is electrically connected to a common potential terminal (COM terminal) of the driver IC 21 through a wiring 25 formed on the projecting portion 30 of the substrate 1. The driver IC 21 controls the magnitude of the electric field E based on a control signal supplied from an external electronic device via the FPC 22. In the horizontal electric field type liquid crystal display panel 20, by controlling the magnitude of the electric field E, the alignment state of the liquid crystal molecules in the liquid crystal 4 is changed, and the gradation on the display screen is changed.

  As can be seen from the above, in the horizontal electric field type liquid crystal display panel 20, electrodes such as the pixel electrode 8 and the common electrode 5 are formed only on the inner surface of the substrate 1, and electrodes are formed on the inner surface of the substrate 2. Not. Therefore, for example, if an electric charge is added to the surface of the polarizing plate 12 a installed on the outer surface of the substrate 2 due to static electricity from the outside, an electric field is generated between the substrate 1 and the substrate 2. The liquid crystal molecules of the liquid crystal 4 are affected by this electric field. As a result, the liquid crystal display panel 20 cannot perform an appropriate display.

  Therefore, in the liquid crystal device 100 according to the present embodiment, as described above, a conductive film is formed on the entire outer surface of the polarizing plate 12a, and a ground wiring GND of the FPC 22 and a conductive film of the polarizing plate 12a are formed. The surface is electrically connected to each other by a conductive tape 27.

  Thereby, the electric charge added to the surface of the polarizing plate 12a can escape outside via the conductive tape 27 and the ground line GND. By doing so, the liquid crystal device 100 has a function of shielding and shielding external static electricity and the like, and can prevent an electric field from being generated between the substrate 1 and the substrate 2.

  Specifically, as shown in FIG. 1, the conductive tape 27 includes a metal layer 27a such as copper (Cu), an insulating layer 27b formed on one surface of the metal layer 27a, and the metal layer 27a. It is comprised from the adhesive layer 27c which has the electroconductivity formed in the other surface. The insulating layer 27b completely insulates one surface of the metal layer 27a and also has a rust preventive effect for the metal layer 27a. The conductive tape 27 is bonded to each of the ground wiring GND of the FPC 22 and the surface of the polarizing plate 12a on which the conductive film is formed via the adhesive layer 27c.

  In FIG. 2, for convenience of explanation, the conductive tape 27 is illustrated as being shifted from the drive circuit such as the driver IC 21 and the wirings 23, 24, and 25, but actually, the conductive tape 27 is an area where the drive circuit is disposed. In some cases.

  4A and 4B show a modification of the arrangement of the drive circuit in the liquid crystal device 100 shown in FIG. 2, and specifically, the conductive tape 27 crosses the region where the drive circuit is arranged. The example arrange | positioned is shown. FIG. 4A shows an example in which the wiring 23 extends obliquely from the driver IC 21 toward the pixel electrode 8 formed on the inner surface of the substrate 2. In this example, the conductive tape 27 is disposed so as to cross a region where a part of the wiring 23 is disposed. In FIG. 4B, the driver IC 21 is wider than the driver IC in the liquid crystal device 100 described above. In this example, the conductive tape 27 is disposed across the region where the driver IC 21 is disposed.

  In the modification described above, the adhesive layer 27 c having conductivity is directed to the protruding portion 30 side of the substrate 1, and the wiring 23 or driver in which the conductive tape 27 is disposed on the protruding portion 30 of the substrate 1. There is a risk of short circuit in contact with a drive circuit such as IC21.

  In the liquid crystal device 100 according to the present embodiment, the drive circuits such as the driver IC 21 and the wirings 23, 24, and 25 that are disposed on the protruding portion 30 of the substrate 1 are covered with the insulator 26. By doing so, the liquid crystal device 100 can prevent a short circuit between the drive circuit and the conductive tape 27 disposed on the projecting portion 30 of the substrate 1. In FIG. 1, the entire drive circuit is covered with the insulator 26, but the present invention is not limited to this. Instead, as long as the purpose is to prevent a short circuit between the drive circuit disposed on the overhanging portion 30 of the substrate 1 and the conductive tape 27, only the drive circuit of the portion facing the conductive tape 27, Specifically, the region of the protruding portion 30 where the drive circuit and the conductive tape 27 overlap may be covered with the insulator 26.

(Manufacturing method of liquid crystal device)
Next, a method for manufacturing the liquid crystal device 100 according to the present embodiment will be described. FIG. 5 is a flowchart showing a method for manufacturing the liquid crystal device 100 according to the present embodiment. 6 and 7 are schematic views showing the manufacturing process of the liquid crystal device 100 according to the present embodiment, specifically, an enlarged plan view of the overhang portion 30.

  As shown in FIG. 6A, first, as a display panel manufacturing process, two substrates 1 and 2 are bonded together, and after the liquid crystal is sealed between the two bonded substrates 1 and 2, the substrate The driver IC 21 and the FPC 22 are arranged on the substrate 1 by a COG (Chip On Glass) technique so as to be electrically connected to the wirings 23, 24, and 25 patterned on the one overhang portion 30 (step P11).

  Next, as a drive circuit covering step, for example, a liquid insulating material is applied to the overhanging portion 30 of the substrate 1 and then cured, thereby being disposed on the overhanging portion 30 of the substrate 1 as shown in FIG. The drive circuits such as the driver IC 21 and the wirings 23, 24, and 25 are covered with the insulator 26 (process P12). In the drawings described in FIG. 6 and the following description, the drive circuits such as the driver IC 21 and the wirings 23, 24, and 25 are shown by broken lines in order to clarify the positional relationship with the insulator 26. Thereafter, as shown in FIG. 7A, as a conductive layer installation process, the polarizing plate 12a is installed on the outer surface of the substrate 2 (process P13). On the contrary, after the polarizing plate 12 a is installed on the surface of the substrate 2, the driving circuit such as the driver IC 21 and the wirings 23, 24, and 25 may be covered with the insulator 26. However, in this case, when the liquid insulating material is applied to the overhanging portion 30 of the substrate 1, the polarizing plate 12a may be soiled. Therefore, when the driving circuit such as the driver IC 21 and the wirings 23, 24, and 25 disposed on the protruding portion 30 of the substrate 1 is covered with the insulator 26, the polarizing plate 12 a is installed on the surface of the substrate 2. Is better.

  And as shown in FIG.7 (b), as the tape-shaped electroconductive member sticking process, the ground wiring GND of FPC22 and the surface in which the electrically conductive film of the polarizing plate 12a is formed are adhere | attached with the electroconductive tape 27 ( Step P14).

  As described above, after driving circuits such as the driver IC 21 and the wirings 23, 24, and 25 arranged on the projecting portion 30 of the substrate 1 are covered with the insulator 26, the ground wiring GND and the polarizing plate 12 a are connected to the conductive tape. By being electrically connected to each other at 27, it is possible to prevent a short circuit between the drive circuit and the conductive tape 27 disposed on the projecting portion of the substrate 1.

[Modification]
Next, a modified example of the liquid crystal device 100 according to the present embodiment will be described.

  FIG. 8 is a plan view of the liquid crystal device 100 according to the first modification. In the liquid crystal device 100 according to the first modification, unlike the liquid crystal device 100 according to the present embodiment described above, the overhang portion 30 is formed with a ground wiring of the overhang portion that is electrically connected to the ground line GND of the FPC 22. The polarizing plate 12a and the ground wire of the projecting portion are electrically connected to each other by the conductive tape 27. Even in this case, the liquid crystal device 100 has a function of shielding and shielding external static electricity and the like, and an electric field can be prevented from being generated between the substrate 1 and the substrate 2.

  As a manufacturing method of the liquid crystal device 100 according to the first modified example, differences from the steps in the flowchart shown in FIG. 5 described above will be described. First, in step P12, after the terminal portion 29 of the ground line of the overhanging portion is masked, an insulating material is applied to the overhanging portion 30 of the substrate 1, so that the driver IC 21 arranged in the overhanging portion 30 of the substrate 1 is applied. Driving circuits such as wirings 23, 24, and 25 are covered with an insulator 26. Thereafter, in Step P14, the mask is removed, and the conductive tape 27 is bonded by the adhesive layer 27c of the conductive tape 27, connecting the terminal of the ground wire in the protruding portion and the surface of the polarizing plate 12a on which the conductive film is formed. . Steps P11 and P13 are the same as those described in the above embodiment. Also by this manufacturing method, it is possible to prevent a short circuit between the drive circuit and the conductive tape 27 arranged on the projecting portion 30 of the substrate 1.

  FIG. 9 is a cross-sectional view of the liquid crystal device 100 according to the second modification. In the liquid crystal device 100 according to the second modification, unlike the liquid crystal device 100 according to the above-described embodiment, a transparent conductive film 13 such as ITO is formed on the surface of the substrate 2. A polarizing plate 12 is installed on the surface. The transparent conductive film 13 and the terminal of the ground line GND of the FPC 22 are electrically connected to each other by a conductive tape 27. Also according to this method, the liquid crystal device 100 has a function of shielding and shielding external static electricity and the like, and an electric field can be prevented from being generated between the substrate 1 and the substrate 2. Therefore, the transparent conductive film 13 functions as a conductive layer in the present invention.

  In each of the above-described embodiments, the polarizing plate 12a has a conductive film formed on the surface thereof. However, the present invention is not limited to this. Instead, as the polarizing plate 12a, for example, on the surface of the polarizing plate. A wire grid polarizing plate having a plurality of metal films formed in parallel to each other at a predetermined interval may be used. In the case of using a wire grid polarizer, it is necessary to electrically connect all of the plurality of metal films and the ground wire terminal with a conductive tape. As one method, a new metal film is formed on one end of all the plurality of metal films, and the newly formed metal film and the ground line are electrically connected to each other with a conductive tape. A method is conceivable. Furthermore, instead of using a conductive polarizing plate, a conductive optical sheet, for example, a conductive diffusion sheet may be used as the conductive layer in the present invention.

  In each of the above-described embodiments, the conductive tape 27 is electrically connected to the terminal of the ground line GND of the FPC 22. However, the present invention is not limited to this. Instead, the conductive tape 27 is electrically connected to the COM terminal of the driver IC 21. May be connected to each other.

  Further, in each of the above-described embodiments, one predetermined position of the conductive layer and the ground line GND of the FPC 22 are electrically connected to each other by one conductive tape 27. However, the present invention is not limited to this. Alternatively, a plurality of positions of the conductive layer and the ground line GND of the FPC 22 may be electrically connected to each other by a plurality of conductive tapes 27. This makes it easier for the charge applied to the surface of the conductive layer to escape to the outside.

  In addition to the polarizing plate 12a, in addition, the polarizing plate 12b is electrically connected to the ground line GND of the polarizing plate 12b and the FPC 22 using a conductive tape. Needless to say, it is good.

  In each of the above-described embodiments, the liquid crystal display panel 20 is an FFS liquid crystal display panel. However, the liquid crystal display panel 20 is not limited to this, and instead, an IPS (In-Plane Switching) liquid crystal display panel. It goes without saying that it may be. Furthermore, the liquid crystal display panel 20 is not limited to a horizontal electric field type liquid crystal display panel, but can be applied to a liquid crystal display panel of another type such as a VA (Vertical Aligned) type instead. It is.

[Electronics]
Next, specific examples of electronic devices to which the liquid crystal device 100 according to the present invention can be applied will be described with reference to FIG.

  First, an example in which the liquid crystal device 100 according to the present invention is applied to a display unit of a portable personal computer (so-called notebook personal computer) will be described. FIG. 10A is a perspective view showing the configuration of this personal computer. As shown in the figure, the personal computer 710 includes a main body 712 having a keyboard 711 and a display 713 to which the liquid crystal device 100 according to the present invention is applied.

  Next, an example in which the liquid crystal device 100 according to the present invention is applied to a display unit of a mobile phone will be described. FIG. 10B is a perspective view showing the configuration of this mobile phone. As shown in the figure, a cellular phone 720 includes a plurality of operation buttons 721, a receiving port 722, a transmitting port 723, and a display unit 724 to which the liquid crystal device 100 according to the present invention is applied.

  Note that, as an electronic device to which the liquid crystal device 100 according to the present invention can be applied, in addition to the personal computer shown in FIG. 10A and the mobile phone shown in FIG. Monitor direct-view video tape recorders, car navigation devices, pagers, electronic notebooks, calculators, word processors, workstations, videophones, POS terminals, digital still cameras, etc.

It is sectional drawing of the liquid crystal device which concerns on this embodiment. It is a top view of the liquid crystal device concerning this embodiment. It is sectional drawing and a top view in a sub pixel of a liquid crystal device concerning this embodiment. The modification of arrangement | positioning of the drive circuit of the liquid crystal device which concerns on this embodiment is shown. 4 is a flowchart showing a method for manufacturing the liquid crystal device according to the embodiment. It is a schematic diagram which shows the manufacturing process of the liquid crystal device which concerns on this embodiment. It is a schematic diagram which shows the manufacturing process of the liquid crystal device which concerns on this embodiment. The top view of the liquid crystal device which concerns on a 1st modification is shown. Sectional drawing of the liquid crystal device which concerns on a 2nd modification is shown. It is the schematic which shows the electronic device to which the illuminating device of this invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Illuminating device, 11 Light guide plate, 12a, 12b Polarizing plate, 15 Light source part, 16 LED, 20 Liquid crystal display panel, 21 Driver IC, 22 FPC, 26
Insulator, 27 conductive tape, 100 liquid crystal device

Claims (7)

A liquid crystal display panel having a liquid crystal sandwiched between two substrates;
A conductive layer formed on an outer surface of at least one of the two substrates;
A flexible substrate electrically connected to the liquid crystal display panel;
With
Of the two substrates, one substrate has an overhanging portion that overhangs the other substrate,
On the surface of the overhanging portion, the drive circuit and the flexible substrate are disposed, and the ground wiring of the overhanging portion that is electrically connected to the ground wiring of the flexible substrate is formed,
The ground wiring of the protruding portion and the conductive layer are electrically connected to each other by a tape-shaped conductive member,
The liquid crystal device, wherein the tape-shaped conductive member is disposed across a region where the drive circuit is disposed, and the drive circuit and the tape-shaped conductive member are insulated.   The drive circuit includes a wiring and a driver IC, and the tape-like conductive member is disposed across a region where at least one of the wiring or the driver IC is disposed. Item 2. A liquid crystal device according to item 1.   The liquid crystal device according to claim 1, wherein the conductive layer is an optical sheet having conductivity.   The liquid crystal device according to claim 1, wherein the conductive layer is a transparent conductive film formed on an outer surface of at least one of the two substrates. The liquid crystal display panel is a liquid crystal display panel in which a common electrode and a pixel electrode are arranged on one substrate,
5. The conductive layer according to claim 1, wherein the conductive layer is formed on an outer surface of a substrate on which the common electrode and the pixel electrode are not formed, of the two substrates. 6. Liquid crystal device.   An electronic apparatus comprising the liquid crystal device according to claim 1 in a display portion. A drive circuit and a flexible substrate are disposed on the surface of the projecting portion projecting from the other substrate with respect to the other substrate, a ground wiring is formed on the flexible substrate and the projecting portion , and the flexible substrate ground wiring and the ground wiring of the overhanging portion and a display panel manufacturing process that will be electrically connected,
A driving circuit covering step of covering at least a part of the driving circuit disposed in the projecting portion with an insulator;
A conductive layer installation step in which a conductive layer is installed on the outer surface of the other substrate;
The conductive layer and the ground wiring of the overhanging portion are formed by a tape-like conductive member arranged in a region where the drive circuit is arranged in the overhanging portion and across the region where the insulator is provided. And a tape-like conductive member attaching step that is electrically connected to each other.

Images