JP2020134733A - Display - Google Patents

Abstract

To provide a display that can reduce the frame width of a peripheral area outside a display area.SOLUTION: A display comprises a first substrate, a polarizing plate, a second substrate, a cover member, an adhesive layer, and an electrode. The first substrate has a first insulating substrate, and a plurality of pixels arranged in matrix. The polarizing plate has a first surface opposite to the first substrate and a second surface on the opposite side of the first surface, and is superimposed on a display area where the plurality of pixels are arranged. The second substrate has a second insulating substrate and is arranged between the first substrate and the first surface of the polarizing plate. The cover member is provided at a position opposite to the second surface of the polarizing plate, and is superimposed on the display area and a peripheral area located on the periphery of the display area. The adhesive layer bonds the polarizing plate and the cover member and has conductivity. The electrode is provided in the peripheral area and maintained at a predetermined potential. The adhesive layer and the electrode are electrically connected.SELECTED DRAWING: Figure 2

Description

Embodiments of the present invention relate to display devices.

In recent years, in a liquid crystal display device, from the viewpoint of antistatic, a transparent conductive film provided on the surface of one substrate and an electrode having a ground potential provided on the other substrate are electrically connected by a conductive member such as a conductive paste. The technology connected to is known. Such an antistatic configuration is provided in the frame area around the display area, but on the other hand, further narrowing of the frame is required.

Japanese Unexamined Patent Publication No. 2015-11121 Japanese Unexamined Patent Publication No. 2012-177895 Japanese Unexamined Patent Publication No. 2011-170200

One of the objects of the present disclosure is to provide a display device capable of narrowing the frame of the peripheral area outside the display area.

The display device according to one embodiment includes a first substrate, a polarizing plate, a second substrate, a cover member, an adhesive layer, and an electrode. The first substrate has a first insulating substrate and a plurality of pixels arranged in a matrix. The polarizing plate has a first surface facing the first substrate and a second surface opposite to the first surface, and superimposes on a display region in which the plurality of pixels are arranged. The second substrate has a second insulating substrate and is arranged between the first substrate and the first surface of the polarizing plate. The cover member is provided at a position facing the second surface of the polarizing plate, and overlaps the display area with the peripheral area located around the display area. The adhesive layer adheres the polarizing plate and the cover member and has conductivity. The electrode is provided in the peripheral region and is maintained at a predetermined potential. The adhesive layer and the electrode are electrically connected.

FIG. 1 is a plan view showing a schematic configuration of a display device according to the first embodiment. FIG. 2 is a schematic perspective view in the vicinity of the mounting area of the display device according to the first embodiment. FIG. 3 is a schematic cross-sectional view of the display device along the line II in FIG. FIG. 4 is a schematic cross-sectional view of the display device along the line II-II in FIG. FIG. 5 is a diagram showing a schematic cross section of the display device according to the comparative example and the display device according to the first embodiment. FIG. 6 is a diagram showing a schematic appearance of the display device according to the comparative example and the display device according to the first embodiment. FIG. 7 is a diagram showing a schematic appearance when a plurality of first electrodes are provided in the display device according to the first embodiment. FIG. 8 is a plan view showing a schematic configuration of the display device according to the second embodiment. FIG. 9 is a schematic perspective view in the vicinity of the mounting area of the display device according to the second embodiment. FIG. 10 is a schematic cross-sectional view of the display device along lines III-III in FIG. FIG. 11 is a diagram showing a schematic cross section of the display device according to the comparative example and the display device according to the second embodiment.

Some embodiments will be described with reference to the drawings.
It should be noted that the disclosure is merely an example, and those skilled in the art can easily conceive of appropriate changes while maintaining the gist of the invention are naturally included in the scope of the present invention. In addition, the drawings may be schematically represented as compared with the embodiments in order to clarify the description, but the drawings are merely examples and do not limit the interpretation of the present invention. In each figure, the reference numerals may be omitted for the same or similar elements arranged consecutively. Further, in the present specification and each figure, components exhibiting the same or similar functions as those described above with respect to the above-mentioned figures may be designated by the same reference numerals, and duplicate detailed description may be omitted.

In each embodiment, a liquid crystal display device including a liquid crystal display element is disclosed. However, each embodiment does not prevent the application of the individual technical ideas disclosed in each embodiment to other types of display devices including display elements other than the liquid crystal display element. Examples of other types of display devices include an organic electroluminescence (EL) display device, a self-luminous display device having a Light Emitting Diode (LED) display device, an electronic paper type display device having an electrophoresis element, and a Micro. Examples thereof include a display device to which Electro Mechanical Systems (MEMS) is applied, a display device to which electrochromism is applied, and the like.

[First Embodiment]
FIG. 1 is a plan view showing the appearance of the display device 1A according to the first embodiment. In one example, the first direction X, the second direction Y, and the third direction Z are orthogonal to each other, but may intersect at an angle other than 90 °. The first direction X and the second direction Y correspond to the directions parallel to the main surface of the substrate constituting the display device 1A, and the third direction Z corresponds to the thickness direction of the display device 1A. For example, the first direction X corresponds to the short side direction of the display device 1A, and the second direction Y corresponds to the long side direction of the display device 1A. In the present specification, it is assumed that there is an observation position for observing the display device 1A on the tip side of the arrow indicating the third direction Z, and from this observation position, XY defined in the first direction X and the second direction Y. Looking toward a plane is called plan view.

The display device 1A includes a display panel 2, a flexible printed circuit board 3, an IC chip 4, and a circuit board 5.

The display panel 2 is, for example, a liquid crystal display panel, and includes a first substrate SUB1 having a first insulating substrate, a second substrate SUB2 having a second insulating substrate, and a liquid crystal layer LC described later. The display panel 2 includes a display area DA for displaying an image and a frame-shaped peripheral area SA surrounding the display area DA.

The first substrate SUB1 includes a first region A1 and a second region A2 arranged in the second direction Y. The second substrate SUB2 is superimposed on the first substrate SUB1 in the first region A1 and is not superimposed on the second region A2.

The display area DA is included in the first area A1. The peripheral region SA includes the second region A2. As will be described later, since the flexible printed circuit board 3 and the IC chip 4 are mounted in the second region A2, the second region A2 may be referred to as a mounting region. Further, the flexible printed circuit board 3 and the IC chip 4 mounted on the second region A2 may be collectively referred to as electronic components.

The display area DA includes a plurality of pixels PX arranged in a matrix in the first direction X and the second direction Y. The pixel PX here indicates a minimum unit that can be individually controlled according to a pixel signal, and may be referred to as a sub-pixel. The pixel PX is, for example, either a red pixel that displays red, a green pixel that displays green, a blue pixel that displays blue, or a white pixel that displays white.

The flexible printed circuit board 3 is mounted in the second region A2 and is electrically connected to the circuit board 5. The IC chip 4 is mounted in the second region A2 and is electrically connected to the circuit board 5 via the flexible printed circuit board 3. The IC chip 4 may be mounted on the flexible printed circuit board 3.

The IC chip 4 has a built-in display driver DD. The display driver DD outputs a signal required for image display in the image display mode for displaying an image. For example, the display driver DD supplies pixel signals to a plurality of pixel PXs. In the example shown in FIG. 1, the IC chip 4 has a built-in touch controller TC. The touch controller TC controls a touch sensing mode that detects the approach or contact of an object with the display device 1A.

The first substrate SUB1 includes a first electrode EL1 in the second region A2. In the example shown in FIG. 1, the first electrode EL1 is provided in the second region A2, but the first electrode EL1 may be provided in the peripheral region SA. Further, as shown in FIG. 2 described later, the first substrate SUB1 includes a plurality of second electrodes EL2 in the second region A2.

The first electrode EL1 is grounded via, for example, the flexible printed circuit board 3, but it may be maintained at a predetermined potential. The predetermined potential is given to the first electrode EL1 by a direct current having a ground potential, a fixed potential of several V, or an alternating current having a predetermined amplitude. In the example shown in FIG. 1, the first electrode EL1 is arranged at one place on the first substrate SUB1, but the present invention is not limited to this, and a plurality of first electrode EL1s are placed on the first substrate SUB1. It may be arranged at a plurality of locations (more specifically, on the peripheral region SA).

The plurality of second electrodes EL2 are electrically connected to, for example, the flexible printed circuit board 3 and the IC chip 4.

The display device 1A includes a first polarizing plate PL1 bonded to the second substrate SUB2. The first polarizing plate PL1 overlaps with the display region DA. As shown in FIG. 2 to be described later, the display device 1A also includes a second polarizing plate PL2 bonded to the first substrate SUB1. In the following description, the side of the second substrate SUB2 on the second region A2 side is referred to as the first side E1, and the side of the first polarizing plate PL1 on the second region A2 side is referred to as the second side E2. In the present embodiment, the second side E2 is superimposed on the first side E1. The "side" includes a side surface including the side (a surface extending in the Z direction).

The display device 1A includes a cover member CM that overlaps with the display area DA and the peripheral area SA. The cover member CM can be formed of, for example, glass or a transparent resin. As shown in FIG. 2 described later, the cover member CM is adhered to the first polarizing plate PL1 and the first substrate SUB1 by the conductive adhesive layer AD3.

Next, the structure of the second region A2 (structure of the mounting region) will be described with reference to FIG. FIG. 2 is a schematic perspective view of the display device 1A in the second region A2. FIG. 2 also shows a schematic cross-sectional view of the display device 1A.

The first substrate SUB1 and the second substrate SUB2 are bonded to each other by an annular sealing material SE surrounding the display area DA. The liquid crystal layer LC is enclosed in the inner region of the sealing material SE.

The first polarizing plate PL1 has a first surface facing the second substrate SUB2 (first substrate SUB1) and a second surface opposite to the first surface, and the second substrate is formed by the first adhesive layer AD1. It is adhered to SUB2. Further, the second polarizing plate PL2 is adhered to the first substrate SUB1 by the second adhesive layer AD2. The polarization axes of the first polarizing plate PL1 and the second polarizing plate PL2 are, for example, orthogonal to each other.

The cover member CM is provided at a position facing the upper surface (second surface) of the first polarizing plate PL1, and is adhered to the first polarizing plate PL1 and the first substrate SUB1 by the conductive adhesive layer AD3 having conductivity. .. More specifically, the cover member CM is adhered to the first polarizing plate PL1 in the first region A1 and to the first substrate SUB1 in the second region A2 by the conductive adhesive layer AD3.

As the conductive adhesive layer AD3, for example, an adhesive containing conductive metal particles can be used. Further, the sheet resistance value of the conductive adhesive layer AD3 is preferably the same as the sheet resistance value of ITO (Indium Tin Oxide) or the like, and specifically, it is 10 ⁸ to 10 ¹⁰ [Ω / □]. preferable. In this embodiment, the first adhesive layer AD1 and the second adhesive layer AD2 do not have conductivity.

The first side E1 on the second region A2 side of the second substrate SUB2 and the second side E2 on the second region A2 side of the first polarizing plate PL1 overlap each other, and these two sides E1 and E2 are the first adhesive layer. The side of the second region A2 side of AD1 and the side of the sealing material SE on the second region A2 side are also overlapped.

A first electrode EL1 and a plurality of second electrodes EL2 are provided in the second region A2 of the first substrate SUB1.

The upper surface of the plurality of second electrodes EL2 is covered with an anisotropic conductive film. As the anisotropic conductive film, for example, a thermosetting resin containing conductive metal particles can be used. The flexible printed circuit board 3 and the IC chip 4 are connected to the second electrode EL2 via an anisotropic conductive film. As a result, each circuit of the flexible printed circuit board 3 and the IC chip 4 is made conductive with the second electrode EL2.

Each circuit conducting with the plurality of second electrodes EL2 is covered with an insulating member 11 and insulated from the conductive adhesive layer AD3. As the insulating member 11, for example, an oxide film such as SiO or a nitride film such as SiN can be appropriately used. Alternatively, the insulating member 11 may be made of, for example, an organic material. When the wiring leading to the plurality of second electrodes EL2 is arranged on the upper surface of the first substrate SUB1, the wiring is also covered with the insulating member 11 in addition to the above-mentioned circuits.

In the present embodiment, unlike the second electrode EL2, the first electrode EL1 is not insulated from the conductive adhesive layer AD3 by the insulating member 11. Further, here, the case where each circuit conducting with the plurality of second electrodes EL2 is covered with one insulating member 11 has been described, but the present invention is not limited to this, and each circuit conducting with the plurality of second electrodes EL2 is described. The circuit may be individually covered with a plurality of insulating members 11.

FIG. 3 is a schematic cross-sectional view of the display device 1A along the line II in FIG.
The conductive adhesive layer AD3 is applied over the entire area of the inner surface of the cover member CM. Therefore, in the first region A1, the conductive adhesive layer AD3 continuously covers, for example, the upper surface of the first polarizing plate PL1 to bond the cover member CM and the first polarizing plate PL1, and in the second region A2. Covers the upper surface of the first substrate SUB1 and the first electrode EL1 to bond the cover member CM and the first substrate SUB1.

In the present embodiment, the conductive adhesive layer AD3 includes not only the adhesion between the cover member CM and the first polarizing plate PL1 and the adhesion between the cover member CM and the first substrate SUB1, but also the electrostatic discharge caused by the charging of the second substrate SUB2. It also has a role of protecting various circuits from (ESD). That is, since the conductive adhesive layer AD3 has conductivity and is electrically connected to the first electrode EL1 having a ground potential provided in the second region A2 of the first substrate SUB1, the second substrate is used. The electric charge to be charged on the substrate SUB2 can be released through the first electrode EL1 and the flexible printed circuit board 3 (the wiring connecting the first electrode EL1 and the flexible printed circuit board 3).

FIG. 4 is a schematic cross-sectional view of the display device 1A along the line II-II in FIG.
As described in FIG. 3, since the conductive adhesive layer AD3 is applied over the entire inner surface of the cover member CM, the conductive adhesive layer AD3 is also applied in the first region A1 in the cross section shown in FIG. For example, the upper surface of the first polarizing plate PL1 is continuously covered, and the cover member CM and the first polarizing plate PL1 are adhered to each other. On the other hand, in the second region A2, the conductive adhesive layer AD3 covers the upper surface of the first substrate SUB1 and the insulating member 11, and adheres the cover member CM and the first substrate SUB1.

Subsequently, the effect of the display device 1A according to the present embodiment will be described with reference to a comparative example. It should be noted that the comparative example is for explaining a part of the effects that the display device 1A according to the present embodiment can exert, and the configuration common to the comparative example and the present embodiment is excluded from the scope of the present invention. It's not a thing.

FIG. 5 shows a schematic cross section of the display device 100 according to the comparative example and the display device 1A according to the present embodiment, respectively. FIG. 6 shows a schematic appearance of the display device 100 according to the comparative example and the display device 1A according to the present embodiment, respectively. FIG. 7 shows a schematic appearance when a plurality of first electrodes EL1 are provided on the display device 1A according to the present embodiment.

In the display device 100 according to the comparative example, as shown in FIG. 5A, a transparent conductive film 12 such as ITO or ATO (Antimony Tin Oxide) is provided as a resistance film on the upper surface of the second substrate SUB2. It differs from the display device 1A according to the present embodiment in that a conductive member 13A (conductive paste) for connecting the transparent conductive film 12 and the first electrode EL1 is provided.

In the display device 100 according to the comparative example, the first electrode EL1 grounded via the flexible printed circuit board 3 is provided in the second region A2 of the first substrate SUB1, and the first electrode EL1 and the second substrate are provided. By conducting the transparent conductive film 12 provided on the upper surface of the SUB 2 via the conductive member 13A, the charge to be charged on the second substrate SUB 2 is released through the first electrode EL1 and the flexible printed circuit board 3. According to this, it is possible to suppress the occurrence of various problems (for example, the occurrence of display unevenness) caused by the electrostatic discharge of the second substrate SUB2.

On the other hand, in the display device 100 according to the comparative example, a space for applying the conductive member 13A is required on the transparent conductive film 12 provided on the upper surface of the second substrate SUB2, so that the frame is narrowed by the space. There is an inconvenience that it cannot be done.

On the other hand, in the display device 1A according to the present embodiment, as shown in FIG. 5B, the cover member CM and the first polarizing plate PL1 and the cover member CM and the first substrate SUB1 are adhered to each other. The agent is a conductive adhesive layer AD3 having conductivity, and the first electrode EL1 is covered with the conductive adhesive layer AD3 to electrically connect the conductive adhesive layer AD3 and the first electrode EL1 to form a second substrate. The electric charge to be charged to the SUB 2 is to be released through the first electrode EL1 and the flexible printed circuit board 3.

According to this configuration, since the space for applying the conductive member 13A, which was required in the display device 100 according to the comparative example, is not required, the space, specifically, the distances shown in FIGS. 5 and 6 are required. The frame can be narrowed for d1 minutes.

Further, in the display device 100 according to the comparative example, in order to apply the conductive member 13A, it is necessary to provide the transparent conductive film 12 as a resistance film on the upper surface of the second substrate SUB2, but the display device according to the present embodiment. In the configuration of 1A, since it is not necessary to provide the transparent conductive film 12, it is possible to reduce the manufacturing process (film forming process) by one process as compared with the display device 100 according to the comparative example.

In the configuration of the display device 1A according to the present embodiment, the cover member CM and the first polarizing plate PL1 and the adhesive for adhering the cover member CM and the first substrate SUB1 are provided with a conductive adhesive layer having conductivity. Since the AD3 is used, the conductive adhesive layer AD3 may be provided at the time of the process of bonding the cover member CM in the display device 100 according to the comparative example, and an effect that a new process is not required can be obtained.

Further, it is possible to omit the process of applying the conductive member 13A, which is necessary for the display device 100 according to the comparative example, and it is possible to further reduce the manufacturing process as compared with the display device 100 according to the comparative example. It becomes.

Further, in the display device 1A according to the present embodiment, since the conductive adhesive layer AD3 is applied over the entire inner surface of the cover member CM, the display device 1A (for example, the first substrate SUB1 and the first polarizing plate) is applied. It is also possible to cover the entire side surface of the plate PL1 and the second substrate SUB2) with the conductive adhesive layer AD3. The conductive adhesive layer AD3 is electrically connected to the first electrode EL1 which is grounded via the flexible printed circuit board 3, and the conductive adhesive layer AD3 is all around the side surface of the display device 1A as described above. Therefore, in the display device 1A according to the present embodiment, it is possible to obtain the effect of being less susceptible to the influence of charging from the side surface.

Further, in the display device 1A according to the present embodiment, since the conductive adhesive layer AD3 is applied over the entire inner surface of the cover member CM, the first is grounded via the flexible printed circuit board 3. Regardless of the position of the electrode EL1 on the first substrate SUB1 (on the peripheral region SA), the conductive adhesive layer AD3 and the first electrode EL1 can be electrically connected to each other. According to this, it is possible to obtain the effect that the degree of freedom in designing the display device 1A can be increased. Specifically, as shown in FIG. 7, a plurality of first electrode EL1s are provided in a second region A2 on which the flexible printed circuit board 3 and the IC chip 4 are mounted, and a peripheral region SA other than the second region A2. It is also possible to provide each of them.

[Second Embodiment]
Next, the second embodiment will be described. The configurations and effects not particularly mentioned are the same as those in the first embodiment.

FIG. 8 is a plan view showing a schematic appearance of the display device 1B according to the second embodiment.
The display device 1B is different from the display device 1A according to the first embodiment in that the optical adhesive member AD4 projecting to the second region A2 and the conductive member 13B are provided in the second region A2 of the first substrate SUB1. To do.

FIG. 9 is a schematic perspective view of the display device 1B. FIG. 9 also shows a schematic cross section of the display device 1B as in FIG.
A conductive member 13B in contact with the first electrode EL1 grounded via the flexible printed circuit board 3 is provided in the second region A2 of the first substrate SUB1. The conductive member 13B may be provided on the first electrode EL1 or may be provided so as to cover the first electrode EL1. The conductive member 13B is insulated from each circuit conducting with the plurality of second electrodes EL2 provided in the second region A2 of the first substrate SUB1 by the insulating member 11.

The conductive member 13B is adhered to the optical adhesive member AD4. According to this, the optical adhesive member AD4 and the first electrode EL1 are conductive via the conductive member 13B. One of the side surfaces of the conductive member 13B faces the side surface of the second substrate SUB2 on the second region A2 side. In FIG. 9, one of the side surfaces of the conductive member 13B is in contact with the side surface of the sealing material SE, the second substrate SUB2, the first adhesive layer AD1 and the first polarizing plate PL1 on the second region A2 side. Although illustrated, the conductive member 13B does not have to be in contact with each of these layers.

The length (thickness) of the conductive member 13B in the third direction Z is smaller than the total thickness of the second substrate SUB2, the liquid crystal layer LC (sealing material SE), the first adhesive layer AD1 and the first polarizing plate PL1. Or it is preferable that they are the same. Further, the length (width) of the conductive member 13B in the second direction Y is preferably about the same as the width of the first electrode EL1 from the viewpoint of narrowing the frame.

The cover member CM is adhered to the first polarizing plate PL1 by the optical adhesive member AD4 having conductivity.

The sheet resistance value of the optical adhesive member AD4 is preferably the same as the sheet resistance value of ITO or the like, and specifically, it is preferably 10 ⁸ to 10 ¹⁰ [Ω / □]. The optical adhesive member AD4 is provided on the upper surface of the first polarizing plate PL and the upper surface of the conductive member 13B by using any method of optical adhesion such as OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin).

FIG. 10 is a schematic cross-sectional view of the display device 1B along the line III-III in FIG.
The optical adhesive member AD4 has a role of not only adhering the cover member CM and the first polarizing plate PL1 but also protecting various circuits from static electricity charged on the second substrate SUB2. That is, the optical adhesive member AD4 has conductivity, and is electrically connected to the first electrode EL1 having a ground potential provided in the second region A2 of the first substrate SUB1 via the conductive member 13B. Therefore, the electric charge to be charged on the second substrate SUB2 can be released through the first electrode EL1 and the flexible printed circuit board 3 (the wiring connecting the first electrode EL1 and the flexible printed circuit board 3). it can.

FIG. 11 shows a schematic cross section of the display device 100 according to the comparative example and the display device 1B according to the present embodiment, respectively. Since the display device 100 according to the comparative example has the same configuration as the display device 100 according to the comparative example shown in FIG. 5A, detailed description thereof will be omitted here.

As shown in FIG. 11B, the display device 1B according to the present embodiment needs to be provided with the conductive member 13B that comes into contact with the first electrode EL1 that is grounded via the flexible printed circuit board 3. By providing the optical adhesive member AD4 having conductivity capable of adhering to the conductive member 13B and adhering the cover member CM and the first polarizing plate PL1, the conductive member is provided as in the display device 100 according to the comparative example. The space for applying 13A is not required, and the frame can be narrowed by the space, specifically, the distance d1 minute shown in FIG.

Further, in the display device 100 according to the comparative example, in order to apply the conductive member 13A, it is necessary to provide the transparent conductive film 12 as a resistance film on the upper surface of the second substrate SUB2, but the display device according to the present embodiment. In the configuration of 1B, since it is not necessary to provide the transparent conductive film 12, it is possible to reduce the manufacturing process by one process as compared with the display device 100 according to the comparative example.

Further, in the configuration of the display device 1B according to the present embodiment, the adhesive for adhering the cover member CM and the first polarizing plate PL1 is an optical adhesive member AD4 having conductivity, and therefore, it relates to a comparative example. The optical adhesive member AD4 may be provided at the time of the process of bonding the cover member CM in the display device 100, and the effect that a new process is not required can be obtained.

According to at least one embodiment described above, it is possible to provide a display device capable of narrowing the peripheral area outside the display area.

As described above, all display devices that can be appropriately designed and implemented by those skilled in the art based on the display devices described as the embodiments of the present invention also belong to the scope of the present invention as long as the gist of the present invention is included.

Within the scope of the idea of the present invention, those skilled in the art can come up with various modifications, and it is understood that these modifications also belong to the scope of the present invention. For example, a person skilled in the art appropriately adds, deletes, or changes the design of each of the above-described embodiments, or adds, omits, or changes the conditions of the process of the present invention. As long as it has a gist, it is included in the scope of the present invention.

In addition, with respect to other actions and effects brought about by the aspects described in each of the above-described embodiments, those which are clear from the description of the present specification or which can be appropriately conceived by those skilled in the art are naturally brought about by the present invention. It is understood that.

1A, 1B ... Display device, 2 ... Display panel, 3 ... Flexible printed circuit board, 4 ... IC chip, 5 ... Circuit board, 11 ... Insulation member, 13B ... Conductive member, A1 ... 1st region, A2 ... 2nd region , AD3 ... Conductive adhesive layer, AD4 ... Optical adhesive member, CM ... Cover member, DA ... Display area, E1 ... 1st side, E2 ... 2nd side, EL1 ... 1st electrode, EL2 ... 2nd electrode, PL1 ... 1st 1 Plate plate, SA ... peripheral region, SUB1 ... first substrate, SUB2 ... second substrate.

Claims (9)

A first substrate having a first insulating substrate and a plurality of pixels arranged in a matrix,
A polarizing plate having a first surface facing the first substrate and a second surface opposite to the first surface and overlapping with a display region in which the plurality of pixels are arranged.
A second substrate having a second insulating substrate and arranged between the first substrate and the first surface of the polarizing plate,
A cover member provided at a position facing the second surface of the polarizing plate and overlapping the display area and the peripheral area located around the display area.
A conductive adhesive layer that adheres the polarizing plate and the cover member,
An electrode provided in the peripheral region and maintained at a predetermined potential,
Equipped with
A display device in which the adhesive layer and the electrodes are electrically connected. The adhesive layer comes into contact with the electrode and is electrically connected to the electrode.
The display device according to claim 1. The adhesive layer is an adhesive containing conductive metal particles.
The display device according to claim 1 or 2. A conductive connecting member for connecting the adhesive layer and the electrode is further provided.
The adhesive layer and the electrode are electrically connected via the connecting member.
The display device according to claim 1. The adhesive layer is an optical adhesive member.
The display device according to claim 4. Further including an electronic component that supplies a pixel signal to the plurality of pixels,
The peripheral area includes a mounting area for mounting the electronic component.
The electronic component mounted in the mounting region is covered with an insulating member at least in part located on the mounting region.
The display device according to any one of claims 1 to 5. The side of the polarizing plate on the mounting region side and the side of the second substrate on the mounting region side overlap with each other.
The display device according to claim 6. The electrodes are provided in the mounting region and peripheral regions other than the mounting region, respectively.
The display device according to claim 6. Sheet resistance of the adhesive layer is any of the 10 ⁸ to ^{10 10 [Ω} / □],
The display device according to any one of claims 1 to 8.

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