Display device

Abstract

The utility model provides a display device. A display device according to one embodiment is provided with: a display region in which an image is displayed; a first substrate; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a polarizer facing the second substrate; a conductive adhesive that adheres the second substrate and the polarizer to each other; a first conductive layer and a second conductive layer disposed between the second substrate and the conductive adhesive and separated from each other; a first electrode and a second electrode formed on the first substrate and connected to a ground potential; a first connection member electrically connecting the first conductive layer and the first electrode; a second connection member electrically connecting the second conductive layer and the second electrode; a first moisture-proof agent that covers the first conductive layer and is in contact with the conductive adhesive; and a second moisture-proof agent that covers the second conductive layer and is in contact with the conductive adhesive.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority based on Japanese Patent Application No. 2023-142333 filed on September 1, 2023, and incorporates by reference all the descriptions recorded in the Japanese patent application. Technical field

[0003] Embodiments of the present utility model relate to a display device. Background art

[0004] As an example of a display device, a lateral electric field type liquid crystal display device is known. In this liquid crystal display device, a technique is known in which an electrode having a ground potential provided on one substrate and a conductive layer provided on the other substrate are electrically connected by a connecting member. The conductive layer is in contact with a conductive adhesive that bonds the other substrate and the polarizing plate.

[0005] In the liquid crystal display device having such a configuration, it is desired to manage the resistance value of the conductive adhesive in a state where the polarizing plate is bonded to the substrate.

[0006] In addition, in this liquid crystal display device, when moisture invades the bonding surface between the conductive layer and the conductive adhesive, there is a concern that the conductive layer is corroded by the invaded moisture. Summary of the utility model

[0007] Generally, according to an embodiment, a display device includes: a display area for displaying an image; a first substrate; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a polarizer opposed to the second substrate; a conductive adhesive for bonding the second substrate and the polarizer; a first conductive layer and a second conductive layer disposed between the second substrate and the conductive adhesive and separated from each other; a first electrode and a second electrode formed on the first substrate and connected to a ground potential; a first connection member for electrically connecting the first conductive layer and the first electrode; a second connection member for electrically connecting the second conductive layer and the second electrode; a first moisture-proof agent; and a second moisture-proof agent. The first substrate has: a first side extending in a first direction; a second side extending in a second direction intersecting the first direction; and a third side extending in the second direction and located on the opposite side of the second side across the display area. The second substrate has a fourth side extending in the first direction and located between the display area and the first side in a top view. The conductive adhesive has: a fifth side located on the second side; and a sixth side located on the third side. The first conductive layer and the second conductive layer are disposed between the first side and the fourth side in a top view. The first moisture-proof agent covers the first conductive layer between the second side and the fifth side and contacts the conductive adhesive. The second moisture-proof agent covers the second conductive layer between the third side and the sixth side and contacts the conductive adhesive.

[0008] According to an embodiment, a display device includes: a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a polarizer opposed to the second substrate, which has a first side surface and a second side surface opposite to the first side surface; a conductive adhesive for bonding the second substrate and the polarizer; a first conductive layer and a second conductive layer disposed between the second substrate and the conductive adhesive and separated from each other; a first moisture-proof agent covering a first corner formed by a first upper surface exposed from the conductive adhesive in the first conductive layer and the first side surface of the polarizer; and a second moisture-proof agent covering a second corner formed by a second upper surface exposed from the conductive adhesive in the second conductive layer and the second side surface of the polarizer.

[0009] According to each embodiment, the resistance value of the conductive adhesive can be reliably measured, and in addition, a display device capable of suppressing corrosion of the conductive layer can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic top view showing a configuration example of the display device.

[0011] Figure 2 is a schematic cross-sectional view showing a configuration example of a display device.

[0012] Figure 3 is along Figure 1 A - A' line of the display device is a schematic cross-sectional view.

[0013] Figure 4 is along Figure 1 B - B' line of the display device is a schematic cross-sectional view.

[0014] Figure 5 is a schematic top view showing another configuration example of the display device.

[0015] Figure 6 is a schematic top view showing still another configuration example of the display device. Detailed Description of the Invention

[0016] Several embodiments will be described with reference to the accompanying drawings.

[0017] The disclosure is merely an example, and appropriate modifications that are easily conceivable by those skilled in the art and that maintain the gist of the utility model are of course included within the scope of the present utility model. Additionally, for the sake of clarity in the description, the width, thickness, shape, etc. of each part of the drawings may be schematically shown, but this is merely an example and does not limit the interpretation of the present utility model. Further, in this specification and each drawing, for components that perform the same or similar functions as those already described in the accompanying drawings, the same reference numerals are used, and repeated detailed descriptions may be appropriately omitted.

[0018] In addition, in the drawings, the X-axis, Y-axis, and Z-axis that are orthogonal to each other are described as needed for easy understanding. The direction along the X-axis is referred to as the first direction X, the direction along the Y-axis is referred to as the second direction Y, and the direction along the Z-axis is referred to as the third direction Z. Observing various elements parallel to the third direction Z is referred to as a top view.

[0019] Figure 1 is a schematic top view showing a configuration example of the display device DSP. The display device DSP in this embodiment is a liquid crystal display device. The display device DSP includes a display panel PNL, a polarizer 40, a conductive adhesive 50, a conductive layer 61, a conductive layer 62, electrodes 71, 72, connection members 81, 82, moisture-proof agents 91, 92, and a cover member CM. Additionally, the display device DSP includes an illumination device for illuminating the display panel PNL, which will be described later.

[0020] The display panel PNL includes a first substrate SUB1 and a second substrate SUB2. The second substrate SUB2 is opposed to the first substrate SUB1 in the third direction Z. The first substrate SUB1 and the second substrate SUB2 are formed in a flat plate shape parallel to the X-Y plane.

[0021] The display panel PNL has a display area DA and a peripheral area SA. The display area DA is an area for displaying an image. The display area DA has a plurality of pixels PX arranged in a matrix in the first direction X and the second direction Y. In the illustrated example, the first substrate SUB1, the second substrate SUB2, and the display area DA are formed in a rectangular shape extending in the first direction X. The peripheral area SA surrounds the display area DA. The peripheral area SA has an extension part Ex. The extension part Ex is a part of the first substrate SUB1 that does not overlap with the second substrate SUB2, and is an area for mounting a flexible printed circuit board or an IC chip.

[0022] The first substrate SUB1 has a first side S1 extending in the first direction X, a second side S2 and a third side S3 extending in the second direction Y respectively. The second substrate SUB2 has a fourth side S4 extending in the first direction X. The first side S1 corresponds to the side on the extension part Ex side. The third side S3 is located on the opposite side of the second side S2 across the display area DA. The fourth side S4 is located between the display area DA and the first side S1 in a top view. The extension part Ex is located between the first side S1 and the fourth side S4.

[0023] As enlarged and shown in Figure 1 , the plurality of pixels PX include a switching element SW, a pixel electrode PE, a common electrode CE, a liquid crystal layer LC, etc. The switching element SW is constituted by, for example, a thin film transistor (TFT), and is electrically connected to a scanning line GL and a signal line SL. The scanning line GL is electrically connected to the switching elements SW of the respective pixels PX arranged in the first direction X. The signal line SL is electrically connected to the switching elements SW of the respective pixels PX arranged in the second direction Y. The pixel electrode PE is electrically connected to the switching element SW. The pixel electrodes PE are opposed to the common electrode CE respectively, and the liquid crystal layer LC is driven by the electric field generated between the pixel electrode PE and the common electrode CE. A capacitor CS is formed, for example, between an electrode having the same potential as the common electrode CE and an electrode having the same potential as the pixel electrode PE. More specifically, the scanning line GL, the signal line SL, the switching element SW, the pixel electrode PE, and the common electrode CE are provided on the first substrate SUB1.

[0024] The polarizer 40 overlaps with the display area DA in a top view. In the Figure 1 example, each side of the polarizer 40 is located between each side of the display area DA and the second substrate SUB2. The polarizer 40 is adhered to the second substrate SUB2 by a conductive adhesive 50. In the Figure 1In the example, the size of the polarizing plate 40 is equal to the size of the conductive adhesive 50. The polarizing plate 40 and the conductive adhesive 50 have a fifth side S5 on the side of the second side S2 and a sixth side S6 on the side of the third side S3. The fifth side S5 does not overlap with the second side S2 and is located between the second side S2 and the display area DA. The sixth side S6 does not overlap with the third side S3 and is located between the third side S3 and the display area DA.

[0025] The conductive layer 61 and the conductive layer 62 are located between the display area DA and the fourth side S4. The conductive layer 61 and the conductive layer 62 are arranged in the first direction X with a gap GP therebetween. That is, the conductive layer 61 and the conductive layer 62 are separated from each other. In Figure 1 the example, the conductive layer 61 overlaps with the second side S2 and the fourth side S4 respectively in a plan view. The conductive layer 62 overlaps with the third side S3 and the fourth side S4 respectively in a plan view. In addition, the conductive layer 61 may be separated from the second side S2 and the fourth side S4, and the conductive layer 62 may be separated from the third side S3 and the fourth side S4.

[0026] The conductive layer 61 is formed in a rectangular shape having a long side S61 extending in the first direction X. The conductive layer 62 is formed in a rectangular shape having a long side S62 extending in the first direction X. In Figure 1 the example, the long side S61 and the long side S62 overlap with the fourth side S4 respectively in a plan view. In addition, the widths of the conductive layer 61 and the conductive layer 62 along the first direction X are larger than the gap GP along the first direction X.

[0027] The electrodes 71 and 72 are respectively arranged between the first side S1 and the fourth side S4 (extension part Ex) in a plan view. The electrode 71 is located on the side of the second side S2, and the electrode 72 is located on the third side. The electrodes 71 and 72 are respectively connected to the ground potential of a flexible printed circuit board or an IC chip.

[0028] The connection member 81 electrically connects the conductive layer 61 and the electrode 71. The connection member 82 electrically connects the conductive layer 62 and the electrode 72.

[0029] The moisture-proof agent 91 is located between the second side S2 and the fifth side S5 in a plan view. The moisture-proof agent 91 covers the conductive layer 61 between the second side S2 and the fifth side S5 and contacts the conductive adhesive 50. The moisture-proof agent 92 is located between the third side S3 and the sixth side S6 in a plan view. The moisture-proof agent 92 covers the conductive layer 62 between the third side S3 and the sixth side S6 and contacts the conductive adhesive 50.

[0030] The cover member CM is opposed to the polarizer 40 in the third direction Z as indicated by the double-dashed line. The cover member CM covers the entire surface of the display panel PNL in a plan view. The cover member CM is formed of a transparent material such as glass or plastic, for example. In addition, the cover member CM may include a touch panel or the like.

[0031] Figure 2 It is a schematic cross-sectional view showing a configuration example of the display device DSP. The display panel PNL includes the above-described first substrate SUB1, second substrate SUB2, and liquid crystal layer LC.

[0032] The first substrate SUB1 has a transparent substrate 10, insulating layers 11 and 12, a common electrode CE, a plurality of pixel electrodes PE, and an alignment film AL1. The first substrate SUB1 is disposed above the lighting device BL. The insulating layer 11 is disposed on the transparent substrate 10. The common electrode CE is disposed on the insulating layer 11 and extends across a plurality of pixels PX. The insulating layer 12 is disposed on the common electrode CE. The plurality of pixel electrodes PE are disposed on the insulating layer 12 for each pixel PX. The alignment film AL1 covers the plurality of pixel electrodes PE and the insulating layer 12. Figure 1 The shown scanning lines GL, signal lines SL, and switching elements SW are disposed between the transparent substrate 10 and the common electrode CE.

[0033] The second substrate SUB2 includes a transparent substrate 20 and an alignment film AL2. The second substrate SUB2 is disposed above the first substrate SUB1. The alignment film AL2 is disposed below the transparent substrate 20. Although not shown, a light-shielding layer, a color filter layer, an overcoat layer, etc. may also be provided on the second substrate SUB2. However, the color filter layer may also be provided on the first substrate SUB1.

[0034] The liquid crystal layer LC is disposed between the first substrate SUB1 and the second substrate SUB2. In Figure 2 the example, the liquid crystal layer LC is disposed between the alignment film AL1 and the alignment film AL2.

[0035] The display device DSP further includes the above-described polarizer 40 and cover member CM, polarizer 30, transparent adhesives AD1 and AD2, and conductive adhesive 50.

[0036] The polarizer 30 is disposed between the lighting device BL and the transparent substrate 10 and is bonded to the lower surface of the first substrate SUB1 using the transparent adhesive AD1. The polarizer 40 is opposed to the second substrate SUB2. The polarizer 40 is disposed between the transparent substrate 20 and the cover member CM and is bonded to the upper surface of the second substrate SUB2 using the conductive adhesive 50. The polarization axes of the polarizer 30 and the polarizer 40 are orthogonal to each other in the X-Y plane, for example.

[0037] The cover member CM is bonded to the upper surface of the polarizing plate 40 using a transparent adhesive AD2. As the transparent adhesives AD1 and AD2, for example, OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin) can be used.

[0038] The transparent substrates 10 and 20 are insulating substrates such as glass or plastic, for example. The insulating layer 11 is formed of a transparent insulating material. In one example, the insulating layer 11 includes an inorganic insulating layer and an organic insulating layer. The insulating layer 12 is formed of a transparent inorganic insulating material such as silicon nitride (SiNx), for example.

[0039] The common electrode CE and the pixel electrode PE are formed of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO), for example. The alignment layers AL1 and AL2 are horizontal alignment layers having an alignment restricting force along the X-Y plane. The alignment layers AL1 and AL2 can be photo-alignment layers that are given an alignment restricting force by irradiating ultraviolet rays, or can be alignment layers that are subjected to rubbing treatment.

[0040] Figure 3 is a schematic cross-sectional view of the display device DSP along the Figure 1 A-A' line.

[0041] The display panel PNL further includes a sealant SE. The sealant SE bonds the first substrate SUB1 and the second substrate SUB2. The liquid crystal layer LC is sealed by the sealant SE.

[0042] The conductive layers 61 and 62 are respectively disposed between the second substrate SUB2 and the conductive adhesive 50. Specifically, the conductive layers 61 and 62 are respectively disposed on the second substrate SUB2. In addition, a part of each of the conductive layers 61 and 62 is covered by the conductive adhesive 50. A part of the region of the conductive layer 61 that is not covered by the conductive adhesive 50 is covered by the connecting member 81. A part of the region of the conductive layer 62 that is not covered by the conductive adhesive 50 is covered by the connecting member 82. The connecting members 81 and 82 are separated from the conductive adhesive 50, but may also be in contact with the conductive adhesive 50.

[0043] The electrodes 71 and 72 are formed on the first substrate SUB1. In the Figure 3 example, a part of the electrode 71 is covered by the connecting member 81. A part of the electrode 72 is covered by the connecting member 82. However, the entire surface of the electrode 71 may be covered by the connecting member 81. The entire surface of the electrode 72 may also be covered by the connecting member 82.

[0044] As described above, the connection member 81 electrically connects the conductive layer 61 and the electrode 71. The connection member 82 electrically connects the conductive layer 62 and the electrode 72. The conductive adhesive 50 is electrically connected to the electrodes 71 and 72 via the conductive layer 61, the conductive layer 62, the connection member 81, and the connection member 82. Thus, a discharge path from the conductive adhesive 50 to the electrodes 71 and 72 at the ground potential can be formed, and the undesired charging of the second substrate SUB2 can be suppressed. Thus, the deterioration of the display quality due to charging can be suppressed.

[0045] The conductive layer 61 and the conductive layer 62 are each formed of a transparent oxide. As the transparent oxide, indium tin oxide (ITO), indium zinc oxide (IZO), or the like can be used, for example. The resistance value of each of the conductive layer 61 and the conductive layer 62 is equal to or lower than the resistance value of the conductive adhesive 50.

[0046] The connection member 81 and the connection member 82 can be respectively formed, for example, by coating a conductive paste. The connection member 81 and the connection member 82 can be formed of a material containing silver, for example.

[0047] Figure 4 is a schematic cross-sectional view of the display device DSP along the Figure 1 B-B' line.

[0048] The conductive layer 61 has an upper surface 61U (first upper surface) exposed from the conductive adhesive 50. The conductive layer 62 has an upper surface 62U (second upper surface) exposed from the conductive adhesive 50. The polarizing plate 40 has a first side surface 41 on the second side S2 side and a second side surface 42 on the third side S3 side. The corner formed by the upper surface 61U of the conductive layer 61 exposed from the conductive adhesive 50 and the first side surface 41 of the polarizing plate 40 is defined as the first corner CN1, and the corner formed by the upper surface 62U of the conductive layer 62 exposed from the conductive adhesive 50 and the second side surface 42 of the polarizing plate 40 is defined as the second corner CN2.

[0049] The moisture-proof agent 91 covers the first corner CN1. In the Figure 4 example, the moisture-proof agent 91 fills the space SP1 surrounded by the conductive layer 61, the polarizing plate 40, and the cover member CM. Further, in the Figure 4 example, the moisture-proof agent 91 is in contact with the conductive layer 61, the polarizing plate 40 (first side surface 41), the conductive adhesive 50, the transparent adhesive AD2, and the cover member CM, but is not limited to this example. The moisture-proof agent 91 is arranged to cover at least the conductive layer 61 and the conductive adhesive 50 in the first corner CN1.

[0050] The moisture-proof agent 92 covers the second corner CN2. In the Figure 4In the example, the moisture-proof agent 92 is filled into the space SP2 surrounded by the conductive layer 62, the polarizing plate 40, and the cover member CM. In addition, in Figure 4 In the example, the moisture-proof agent 92 is in contact with the conductive layer 62, the polarizing plate 40 (the second side surface 42), the conductive adhesive 50, the transparent adhesive AD2, and the cover member CM, but is not limited to this example. The moisture-proof agent 92 is arranged to cover at least the conductive layer 62 and the conductive adhesive 50 in the second corner portion CN2.

[0051] As the moisture-proof agent 91 and the moisture-proof agent 92, for example, fluororesin, olefin resin, polyurethane resin, acrylic resin, or silicone resin can be used.

[0052] In the above example, the conductive layer 61 corresponds to the first conductive layer, the conductive layer 62 corresponds to the second conductive layer, the electrode 71 corresponds to the first electrode, the electrode 72 corresponds to the second electrode, the connection member 81 corresponds to the first connection member, the connection member 82 corresponds to the second connection member, the moisture-proof agent 91 corresponds to the first moisture-proof agent, and the moisture-proof agent 92 corresponds to the second moisture-proof agent.

[0053] According to the present embodiment, the conductive layers 61 and 62, the electrodes 71 and 72, the connection members 81 and 82, and the conductive adhesive 50 are electrically connected together. In addition, the conductive layer 61 and the conductive layer 62 are separated from each other with a gap GP therebetween. Therefore, for example, if a voltage is applied between the electrode 71 and the electrode 72, current flows in the order of the electrode 71, the connection member 81, the conductive layer 61, the conductive adhesive 50, the conductive layer 62, the connection member 82, and the electrode 72.

[0054] On the other hand, for example, when the conductive layer 61 and the conductive layer 62 are in contact with each other, the resistance values of the conductive layer 61 and the conductive layer 62 are lower than the resistance value of the conductive adhesive 50. Therefore, almost no current flows through the conductive adhesive 50, and most of the current flows through the conductive layer 61 and the conductive layer 62. Therefore, it becomes difficult to measure the resistance value of the conductive adhesive 50.

[0055] In contrast, in the display device DSP of the present embodiment, the conductive layer 61 and the conductive layer 62 are separated from each other and are electrically connected to each other via the conductive adhesive 50. Therefore, compared with the case where the conductive layer 61 and the conductive layer 62 are in contact with each other, more current flows through the conductive adhesive 50 when the conductive layer 61 and the conductive layer 62 are separated from each other. Therefore, the resistance value of the conductive adhesive 50 can be reliably measured.

[0056] In addition, a moisture-proof agent 91 covers the first corner portion CN1, and a moisture-proof agent 92 covers the second corner portion CN2. Therefore, it is possible to prevent moisture from entering the contact surfaces of the conductive layer 61 and the conductive adhesive 50, and the contact surfaces of the conductive layer 62 and the conductive adhesive 50 by using the moisture-proof agent 91 and the moisture-proof agent 92. Therefore, corrosion of the conductive layer 61 and the conductive layer 62 by moisture can be suppressed.

[0057] Next, another configuration example of the display device DSP will be described. The same or similar elements as those of the above-described display device DSP are denoted by the same reference numerals, and redundant descriptions are omitted. In addition, in another configuration example of the display device DSP described below, the same effects as those described above can also be obtained.

[0058] Figure 5 It is a schematic top view showing another configuration example of the display device DSP. The conductive layer 61 is formed in an L shape having a first portion 61A extending in the first direction X and a second portion 61B extending from the first portion 61A in the second direction Y. The conductive layer 62 is formed in an L shape having a third portion 62A extending in the first direction X and a fourth portion 62B extending from the third portion 62A in the second direction Y. The first portion 61A and the third portion 62A are respectively located between the display area DA and the fourth side S4. The second portion 61B is respectively located between the display area DA and the second side S2. The fourth portion 62B is located between the display area DA and the third side S3.

[0059] The conductive adhesive 50 overlaps a part of each of the first portion 61A, the second portion 61B, the third portion 62A, and the fourth portion 62B in a top view. The moisture-proof agent 91 overlaps a part of each of the first portion 61A and the second portion 61B in a top view. The moisture-proof agent 92 overlaps a part of each of the third portion 62A and the fourth portion 62B in a top view.

[0060] As Figure 5 shown, by forming the conductive layer 61 and the conductive layer 62 in an L shape respectively, the area where the conductive layer 61 and the conductive layer 62 are in contact with the conductive adhesive 50 increases compared to the case where the conductive layer 61 and the conductive layer 62 are formed in a rectangular shape. Therefore, the contact resistance between the conductive layer 61 and the conductive layer 62 and the conductive adhesive 50 can be reduced.

[0061] Figure 6 It is a schematic top view showing still another configuration example of the display device DSP.

[0062] The widths of the first portion 61A and the third portion 62A along the second direction Y are defined as width W1 and width W3 respectively. The widths of the second portion 61B and the fourth portion 62B along the first direction X are defined as width W2 and width W4 respectively. InFigure 6 In the example, the width W1 is larger than the width W2, and the width W3 is larger than the width W4. Therefore, the distances between the display area DA and the second side S2, and between the display area DA and the third side S3 can be further reduced. As a result, the narrow bezel of the display device DSP can be achieved.

[0063] As described above, based on the display device described as an embodiment of the present invention, all display devices implemented by appropriate design changes by those skilled in the art also belong to the scope of the present invention as long as they include the gist of the present invention.

[0064] Within the scope of the idea of the present invention, various variations can be conceived by those skilled in the art, and these variations should also be understood to belong to the scope of the present invention. For example, with respect to the above-described embodiment, embodiments obtained by appropriately adding, deleting, or changing the design of components by those skilled in the art, or embodiments obtained by adding, omitting, or changing conditions of processes, as long as they have the gist of the present invention, they are included in the scope of the present invention.

[0065] In addition, regarding other effects brought about by the forms described in the above embodiments, effects that are clearly derived from the description of this specification or can be appropriately conceived by those skilled in the art should of course be understood to be brought about by the present invention.

Claims

1. A display device, characterized in that: have: A display area for displaying an image; a first substrate having a first side extending in a first direction, a second side extending in a second direction intersecting the first direction, and a third side extending in the second direction and located on the opposite side of the second side across the display area; a second substrate having a fourth side, the fourth side extending in the first direction and located between the display area and the first side in a plan view; a liquid crystal layer disposed between the first substrate and the second substrate; a polarizing plate disposed opposite to the second substrate; A conductive adhesive having a fifth side located on the second side and a sixth side located on the third side, for bonding the second substrate and the polarizer; a first conductive layer and a second conductive layer separated from each other and arranged between the second substrate and the conductive adhesive; a first electrode and a second electrode connected to a ground potential, formed on the first substrate and arranged between the first side and the fourth side in a plan view; a first connecting member electrically connecting the first conductive layer and the first electrode; a second connecting member electrically connecting the second conductive layer and the second electrode; a first moisture-proof agent covering the first conductive layer between the second side and the fifth side and in contact with the conductive adhesive; and A second moisture-proof agent covers the second conductive layer between the third side and the sixth side and is in contact with the conductive adhesive.

2. The display device according to claim 1, characterized in that The first conductive layer and the second conductive layer are each formed in a rectangular shape having long sides extending in the first direction, and are located between the display region and the fourth side.

3. The display device according to claim 1, characterized in that The first conductive layer is formed in an L-shape having a first portion extending in the first direction and a second portion extending from the first portion in the second direction. The second conductive layer is formed in an L-shape having a third portion extending in the first direction and a fourth portion extending from the third portion toward the second direction. The first portion and the third portion are respectively located between the display area and the fourth side.

4. The display device according to claim 3, characterized in that: The second portion is located between the display area and the second side, The fourth portion is located between the display area and the third side.

5. The display device according to claim 3, characterized in that: The width of the first portion along the second direction is greater than the width of the second portion along the first direction. A width of the third portion along the second direction is greater than a width of the fourth portion along the first direction.

6. The display device according to claim 1, characterized in that: The first moisture-proof agent and the second moisture-proof agent are in contact with the polarizer.

7. The display device according to claim 1, characterized in that: Also available: a cover member opposed to the polarizing plate; and A transparent adhesive for bonding the polarizing plate and the cover member, The first moisture-proof agent and the second moisture-proof agent are in contact with the transparent adhesive and the cover member.

8. The display device according to claim 1, characterized in that: The first moisture-proof agent and the second moisture-proof agent are fluororesin, olefin resin, polyurethane resin, acrylic resin, or silicone resin.

9. The display device according to claim 1, characterized in that: The first conductive layer and the second conductive layer are each formed of a transparent oxide.

10. The display device according to claim 9, characterized in that: The transparent oxide is indium tin oxide or indium zinc oxide.

11. The display device according to claim 1, characterized in that: The first connecting member and the second connecting member are each formed of a material including silver.

12. A display device, characterized in that: have: 1st substrate; a second substrate opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a polarizing plate facing the second substrate, the polarizing plate having a first side surface and a second side surface opposite to the first side surface; A conductive adhesive bonding the second substrate and the polarizer; a first conductive layer and a second conductive layer separated from each other and arranged between the second substrate and the conductive adhesive; a first moisture-proofing agent covering a first corner portion formed by a first upper surface of the first conductive layer exposed from the conductive adhesive and the first side surface of the polarizer; as well as A second moisture-proofing agent covers a second corner portion formed by a second upper surface of the second conductive layer exposed from the conductive adhesive and the second side surface of the polarizing plate.

13. The display device according to claim 12, characterized in that: Also available: a cover member opposed to the polarizing plate; and A transparent adhesive for bonding the polarizing plate and the cover member, The first moisture-proofing agent is filled in a space surrounded by the first conductive layer, the polarizing plate, and the cover member. The second moisture-proofing agent is filled in a space surrounded by the second conductive layer, the polarizing plate, and the cover member.

14. The display device according to claim 12, characterized in that: The first moisture-proof agent and the second moisture-proof agent are fluororesin, olefin resin, polyurethane resin, acrylic resin, or silicone resin.

15. The display device according to claim 12, characterized in that: The first conductive layer and the second conductive layer are each formed of a transparent oxide.

16. The display device according to claim 15, characterized in that: The transparent oxide is indium tin oxide or indium zinc oxide.

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