Liquid crystal panel and display device

Abstract

Provided are a liquid crystal panel that suppresses signal delay, and a display device provided with the liquid crystal panel. A liquid crystal panel provided with a display region and a bezel region provided around the display region, the liquid crystal panel having a first substrate, a second substrate disposed facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a plurality of spacers, the first substrate or the second substrate has a bezel wiring disposed in the bezel region. The first substrate has: a transparent conductive layer; and a metal wiring extending from the bezel wiring toward the display region and electrically connected to the transparent conductive layer in a region overlapping the plurality of spacers in plan view.

Description

Technical Field

[0001] The following disclosure relates to a liquid crystal panel and a display device. Background Art

[0002] Conventionally, as an example of a liquid crystal panel, there is known an image display panel described in the following patent document 1. The image display panel described in the patent document 1 has the following structure: in an image display panel in which a plurality of pixels are arranged, a division pattern for dividing the pixels is composed of a plurality of boundary line segments extending between two branch points to divide the pixels, and an average value N of the number of boundary line segments extending from one branch point is 3.0≤N<4.0, and a pattern in which the arrangement of pixels does not have an area having a direction with a repetitive period. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2013-050566 Summary of the invention Technical Problems to be Solved by the Invention

[0004] One of the three-dimensional display methods proposes the following method: in a display device in which two liquid crystal panels are stacked, the liquid crystal panel (image display panel) on the back side alternately displays images for the left eye and the right eye, and the polarization state of each image is controlled in the liquid crystal panel on the observation side, and polarized glasses are used to separate the images for the left eye and the right eye for visual recognition. The liquid crystal panel on the observation side functions as a so-called active phase difference plate, and therefore is also called an active phase difference plate panel. In this way, a display device that senses depth by transmitting different images to the left eye and the right eye in a time-division manner is also called a three-dimensional display device of an active phase difference plate method.

[0005] Fig. 9 The active phase difference plate panel is a schematic plan view showing the structure of an existing active phase difference plate panel. The active phase difference plate panel includes, for example, a liquid crystal layer and a pair of electrodes (pixel electrodes and a common electrode) for applying voltage to the liquid crystal layer. The pixel electrodes and the common electrode are formed of transparent electrodes with relatively high resistance. Fig. 9 The pixel electrodes (segment electrodes) or common electrodes (COM electrodes) provided in the active phase difference plate panel 11R shown in the figure depend on the number of divisions, but for example, the size of the pixel electrodes (segment electrodes) or common electrodes (COM electrodes) divided into a fraction of the display area 1AA. Fig. 9 As shown, the pixel electrode or the common electrode is divided into a first segment 1S, a second segment 2S, a third segment 3S and a fourth segment 4S.

[0006] A low-resistance metal wiring, namely the frame wiring 100NL, can be configured in the frame area 1NA of the active phase difference plate panel 11R. Therefore, in the transparent electrode (pixel electrode and common electrode), in the area near the periphery in the display area 1AA, a signal is quickly supplied from the frame wiring 100NL. However, in a place far away from the frame wiring 100NL (near the center of the display area 1AA), as described above, only the signal is input through the high-resistance transparent electrode (pixel electrode, common electrode), which is prone to delay.

[0007] Furthermore, when the number of pixel divisions is 3 or more, the connection points with the peripheral frame wiring 100NL are necessarily limited to the pixels on both sides. In such a case, the delay is more significant. For example, when the number of pixel divisions is 4 (four-division segmentation), Fig. 9 As shown, the first segment 1S and the fourth segment 4S are supplied with signals from three sides, but the second segment 2S and the third segment 3S are supplied with signals from only two sides. In the first segment 1S and the fourth segment 4S, even in the central portion, the delay is small because they are close to the frame wiring 100NL, but in the central portion of the second segment 2S and the third segment 3S, they are far from the frame wiring 100NL, which easily causes signal input delay.

[0008] As described above, in the active phase difference plate panel 11R, signal delays may occur, such as delays in signals input to the pixel electrodes and time required for the potential changed by noise generated in the common electrode to return to the original potential.

[0009] Patent Document 1 mentioned above does not disclose a liquid crystal panel that suppresses signal delay.

[0010] The present invention has been made in view of the above-mentioned current situation, and an object of the present invention is to provide a liquid crystal panel that suppresses signal delay, and a display device including the liquid crystal panel. Solutions to the problem

[0011] (1) One embodiment of the present invention is a liquid crystal panel comprising a display area and a frame area arranged around the display area, and comprising a first substrate, a second substrate arranged opposite to the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and a plurality of spacers, wherein the first substrate or the second substrate comprises a frame wiring arranged in the frame area, and the first substrate comprises: a transparent conductive layer; and a metal wiring extending from the frame wiring toward the display area and being electrically connected to the transparent conductive layer in a region overlapping with the plurality of spacers when viewed from above.

[0012] (2) In addition, a certain embodiment of the present invention is a liquid crystal panel, based on the structure of the above (1), the above-mentioned first substrate or the above-mentioned second substrate has a plurality of shading portions, the above-mentioned plurality of shading portions overlap with the above-mentioned plurality of spacers when viewed from above, and are arranged on the observation surface side rather than the above-mentioned plurality of spacers and the above-mentioned metal wiring, and the above-mentioned metal wiring is electrically connected to the above-mentioned transparent conductive layer in the area overlapping with the above-mentioned plurality of spacers and the above-mentioned plurality of shading portions when viewed from above.

[0013] (3) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (1) or (2), the transparent conductive layer is divided into three or more segments along one direction of the liquid crystal panel.

[0014] (4) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (1), (2) or (3), the metal wiring is arranged in a mesh shape with the area overlapping with the multiple spacers as the endpoints when viewed from above.

[0015] (5) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (1), (2), (3) or (4), the metal wiring is arranged in a mesh shape with all areas overlapping with the multiple spacers as endpoints when viewed from above.

[0016] (6) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (1), (2), (3) or (4), the metal wiring is arranged in a mesh shape with a portion of the area overlapping with the multiple spacers as an endpoint when viewed from above.

[0017] (7) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (1), (2) or (3), the metal wiring is extended in only one direction with the area overlapping with the multiple spacers as the endpoint when viewed from above.

[0018] (8) In addition, an embodiment of the present invention is a liquid crystal panel, based on the structure of (1) or (7), wherein the transparent conductive layer is divided into three or more segments along a first direction of the liquid crystal panel, and the metal wiring is extended along a second direction orthogonal to the first direction with the area overlapping with the plurality of spacers as an endpoint when viewed from above, and is not extended in the first direction.

[0019] (9) In addition, an embodiment of the present invention is a liquid crystal panel, in which, based on the structure of (8), the angle between the metal wiring and the second direction is less than 45 degrees.

[0020] (10) In addition, an embodiment of the present invention is a liquid crystal panel, in which the above-mentioned multiple spacers are randomly arranged based on the structure of the above-mentioned (1), the above-mentioned (2), the above-mentioned (3), the above-mentioned (4), the above-mentioned (5), the above-mentioned (6), the above-mentioned (7), the above-mentioned (8) or the above-mentioned (9).

[0021] (11) In addition, another embodiment of the present invention is a display device comprising: a liquid crystal panel described in any one of (1), (2), (3), (4), (5), (6), (7), (8), (9) and (10); an image display panel arranged on the back side of the liquid crystal panel; and a backlight source arranged on the back side of the image display panel. Effects of the Invention

[0022] According to the present invention, it is possible to provide a liquid crystal panel in which signal delay is suppressed, and a display device including the liquid crystal panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic cross-sectional view of the display device according to Embodiment 1. Figure 2 This is a schematic plan view of a liquid crystal panel according to Embodiment 1. Figure 3 This is an equivalent circuit diagram of the liquid crystal panel according to Embodiment 1. Figure 4 is Figure 2 Schematic diagram of an enlarged plan view of the area surrounded by the dotted line in FIG. Figure 5 is Figure 2 An enlarged schematic plan view of the area enclosed by a dashed line in FIG. Figure 6 It is along Figure 5 Schematic diagram of the cross section along line A1-A2 in FIG. Figure 7 This is an enlarged schematic plan view of a liquid crystal panel according to Modification 1 of Embodiment 1. Figure 8 This is an enlarged schematic plan view of a liquid crystal panel according to Modification 2 of Embodiment 1. Fig. 9 The figure is a schematic plan view showing the structure of a conventional active phase difference plate panel. DETAILED DESCRIPTION

[0024] Hereinafter, the embodiments of the present invention will be described. The present invention is not limited to the contents described in the following embodiments, and design changes can be appropriately made within the scope of the structure of the present invention. In addition, in the following description, for the same part or the part with the same function, the same figure mark is shared between different drawings and appropriately used, and its repeated description is appropriately omitted. The various modes of the present invention can also be appropriately combined within the scope of not departing from the gist of the present invention.

[0025] In this specification, the “observation side” refers to the side closer to the screen (display surface) of the liquid crystal display device, and the “back side” refers to the side farther from the screen (display surface) of the liquid crystal display device.

[0026] (Implementation Method 1) Figure 1 is a schematic cross-sectional view of a display device according to Embodiment 1. Figures 1 to 6 Embodiment 1 will be described. In this embodiment, a display device 10 is exemplified. In a part of each drawing, an X-axis, a Y-axis, and a Z-axis are shown, and the directions of the axes are shown in the drawings.

[0027] The display device 10 according to the present embodiment is a type of 3D image display device that allows a user to view a 3D image (stereoscopic image), and adopts an active phase difference plate method. Figure 1 As shown, the display device 10 includes a liquid crystal panel 11 , an image display panel 12 disposed on the back side of the liquid crystal panel 11 , and a backlight 13 disposed on the back side of the image display panel 12 .

[0028] The image display panel 12 has a function of displaying images.

[0029] The backlight 13 is an external light source that irradiates light used for display with respect to the image display panel 12. The backlight 13 includes an optical member that converts light from a light source (such as an LED) that generates white light (white light) into planar light by imparting an optical effect to the light from the light source.

[0030] The liquid crystal panel 11 functions as a modulator for converting linearly polarized light emitted from the image display panel 12 into circularly polarized light. Specifically, the liquid crystal panel 11 can switch between right circularly polarized light and left circularly polarized light in synchronization with the image display panel 12 that alternately displays the right-eye image and the left-eye image. That is, the liquid crystal panel 11 functions as an active phase difference plate panel.

[0031] The display device 10 of this embodiment uses a circular polarized glasses with a circular polarized film that reverses the left and right rotation directions. The user can view the 3D image by watching the display device 10 while wearing the circular polarized glasses. In this way, the liquid crystal panel 11 and the image display panel 12 are driven at high speed in synchronization with each other, so it is desired to suppress signal delay in the liquid crystal panel 11.

[0032] Figure 2 This is a schematic plan view of a liquid crystal panel according to Embodiment 1. Figure 3 This is an equivalent circuit diagram of the liquid crystal panel according to Embodiment 1. Figure 4 yes Figure 2 Schematic diagram of an enlarged plan view of the area surrounded by the dotted line in FIG. Figure 5 yes Figure 2 An enlarged schematic plan view of the area enclosed by a dashed line in FIG. Figure 6 It is along Figure 5 Schematic diagram of the cross section along line A1-A2 in FIG.

[0033] like Figure 2 to Figure 6 As shown, the liquid crystal panel 11 of the present embodiment includes a display area 1AA and a frame area 1NA provided around the display area 1AA, and includes a first substrate 100, a second substrate 200 arranged opposite to the first substrate 100, a liquid crystal layer 300 arranged between the first substrate 100 and the second substrate 200, and a plurality of spacers 400. The first substrate 100 or the second substrate 200 includes a frame wiring 100NL arranged in the frame area 1NA. The first substrate 100 includes: a first transparent conductive layer 130 as the above-mentioned transparent conductive layer; and a metal wiring 100M, which is extended from the frame wiring 100NL toward the display area 1AA and is electrically connected to the first transparent conductive layer 130 in a region overlapping with the plurality of spacers 400 when viewed from above. In this way, by providing the metal wiring 100M electrically connected to the first transparent conductive layer 130 and the frame wiring 100NL, the effective surface resistance of the first transparent conductive layer 130 can be reduced, and signal delay can be suppressed.

[0034] based on Figure 3 The liquid crystal panel 11 of this embodiment is described in detail. When the metal wiring 100M is not configured, the low-resistance frame wiring 100NL exists in the frame area 1NA, but only the high-resistance transparent electrode, that is, the first transparent conductive layer 130 exists in the display area 1AA. Figure 3In the first segment 1S and the fourth segment 4S shown in the figure, since the frame wiring 100NL with low resistance exists on the upper and lower sides, it is also easy to supply signals near the left and right centers. However, in the second segment 2S and the third segment 3S, there are no upper and lower sides, so the input path of the signal is only the high resistance path (the first transparent conductive layer 130), and the signal is easily delayed. Therefore, in the liquid crystal panel 11 of this embodiment, as shown in FIG. Figure 3 As shown by the middle dotted line, by providing metal wiring 100M, which is a low-resistance signal transmission path, in parallel, it is possible to reduce the combined resistance. The display device 10 of this embodiment will be described in detail below.

[0035] like Figure 2 As shown, the liquid crystal panel 11 of this embodiment includes a display area 1AA and a frame area 1NA arranged around the display area 1AA. The display area 1AA can be an area where the phase difference can be controlled. The display area 1AA is an area for the pixel electrode to be described later. In the display area 1AA, the phase difference of the liquid crystal layer 300 is controlled by changing the orientation state of the liquid crystal molecules according to the magnitude of the voltage applied to the liquid crystal layer 300.

[0036] like Figure 6 As shown, the liquid crystal panel 11 of the present embodiment includes: a first substrate 100, a second substrate 200 disposed opposite to the first substrate 100, a liquid crystal layer 300 sandwiched between the first substrate 100 and the second substrate 200, and a plurality of spacers 400. In the present embodiment, a method in which the first substrate 100, the liquid crystal layer 300, the plurality of spacers 400, and the second substrate 200 are sequentially disposed from the back side toward the observation side is cited as an example for description, but the second substrate 200, the liquid crystal layer 300, the plurality of spacers 400, and the first substrate 100 may also be sequentially disposed from the back side toward the observation side.

[0037] like Figure 2 as well as Figure 4 As shown, the first substrate 100 or the second substrate 200 has a frame wiring 100NL configured in the frame area 1NA. The frame wiring 100NL only needs to be conductive. The frame wiring 100NL is electrically connected to the metal wiring 100M in the frame area 1NA. The frame wiring 100NL is a trunk wiring of the metal wiring 100M. The frame wiring 100NL is, for example, a source line, a gate line, a segmented signal line or a common signal line. The segmented signal line is, for example, a wiring electrically connected to a pixel electrode and used to supply a segmented signal to the segmented electrode. The common signal line is, for example, a wiring electrically connected to a common electrode and used to supply a common signal to the common electrode.

[0038] It is preferable that the frame wiring 100NL is disposed on the first substrate 100. By adopting such a configuration, the frame wiring 100NL and the metal wiring 100M can be easily connected.

[0039] The frame wiring 100NL includes, for example, metals such as copper, titanium, aluminum, molybdenum, tungsten, or alloys thereof. The metals such as copper, titanium, aluminum, molybdenum, tungsten, or alloys thereof are formed in a single layer or multiple layers by sputtering or the like, and then patterned by photolithography or the like, thereby forming the metal wiring 100M.

[0040] The resistivity of the frame wiring 100NL is preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -4 Ω·cm or less, more preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -5 Ω·cm or less, more preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -6 By adopting this method, the signal delay can be effectively reduced.

[0041] The frame wiring 100NL preferably has a higher resistance than the metal wiring 100M. By adopting this method, signal delay can be effectively reduced.

[0042] like Figure 6 As shown, the first substrate 100 has a first supporting substrate 110, a metal wiring 100M, a first insulating layer 120, and a first transparent conductive layer 130 in sequence toward the liquid crystal layer 300 side. The second substrate 200 has a second supporting substrate 210, a plurality of light shielding portions 200S, a second insulating layer 220, and a second transparent conductive layer 230 in sequence toward the liquid crystal layer 300 side. In this specification, transparent means that the total light transmittance is 90% or more and 100% or less. Preferably, the total light transmittance is 95% or more and 100% or less, and more preferably, the total light transmittance is 98% or more and 100% or less. The total light transmittance is obtained by JIS K7361-1.

[0043] One of the first transparent conductive layer 130 and the second transparent conductive layer 230 is a pixel electrode, and the other is a common electrode. The liquid crystal panel 11 of this embodiment is a liquid crystal panel of a vertical electric field mode in which one of the first substrate 100 and the second substrate 200 has a pixel electrode, and the other has a common electrode, and a vertical electric field is applied to the liquid crystal layer 300 sandwiched by the pixel electrode and the common electrode to perform display. As a vertical electric field mode, vertical alignment (VA: Vertical Alignment) in which liquid crystal molecules in the liquid crystal layer are aligned vertically relative to the substrate surface when no voltage is applied can be cited.

[0044] In addition, in the present embodiment, the second transparent conductive layer 230 is described as being disposed on the second substrate 200, but the second transparent conductive layer 230 may also be disposed on the first substrate 100. In this case, the liquid crystal panel 11 is a liquid crystal panel of a transverse electric field mode that performs display by applying a transverse electric field to the liquid crystal layer 300. Examples of the transverse electric field mode include an FFS (Friction Field Switching) mode and an IPS (In Plane Switching) mode in which liquid crystal molecules in the liquid crystal layer are aligned parallel to the substrate surface when no voltage is applied.

[0045] In the display area 1AA, the first substrate 100 or the second substrate 200 includes, for example, a plurality of gate lines extending in parallel to each other and a plurality of source lines extending in parallel to each other in a direction intersecting the gate lines via an insulating film on a support substrate (the first support substrate 110 or the second support substrate 210). The plurality of gate lines and the plurality of source lines are formed in a lattice shape as a whole in a manner of dividing each pixel. For example, a thin film transistor (TFT: Thin Film Transistor) as a switching element is arranged at the intersection of each source line and each gate line.

[0046] The pixel electrode is, for example, an electrode arranged in each area surrounded by two adjacent source lines and two adjacent gate lines. For example, the pixel electrode is set to a potential corresponding to a data signal supplied via a corresponding TFT. The common electrode is an electrode formed on almost the same surface, excluding specific portions such as a connection portion between the pixel electrode and the drain electrode, regardless of the boundary of the pixel. A common signal maintained at a constant value is supplied to the common electrode, and the common electrode is maintained at a constant potential.

[0047] Alignment films having the function of controlling the orientation of liquid crystal molecules contained in the liquid crystal layer 300 are respectively arranged between the first substrate 100 and the liquid crystal layer 300 and between the second substrate 200 and the liquid crystal layer 300. In a voltage-free state where no voltage is applied between the pixel electrode and the common electrode, the liquid crystal molecules contained in the liquid crystal layer 300 are oriented approximately vertically relative to the respective main surfaces of a pair of substrates.

[0048] For example, the liquid crystal panel 11 also includes: a source driver electrically connected to the source line, a gate driver electrically connected to the gate line, and a controller. The gate driver supplies scanning signals to the gate lines in sequence based on the control of the controller. The source driver supplies data signals to the source lines based on the control of the controller when the TFT is in a voltage-applied state through the scanning signal. The pixel electrodes are respectively set to potentials corresponding to the data signals supplied via the corresponding TFTs, and a longitudinal electric field is generated between the pixel electrodes and the common electrode, and the orientation of the liquid crystal molecules in the liquid crystal layer is controlled. Moreover, in the liquid crystal panel 11, in each pixel (first segment 1S, second segment 2S, third segment 3S, and fourth segment 4S), the orientation state of the liquid crystal molecules is changed according to the magnitude of the voltage applied to the liquid crystal layer 300, thereby adjusting the transmittance in the liquid crystal layer 300.

[0049] In addition, the liquid crystal panel 11 involved in this embodiment may not have gate lines, source lines, TFTs as switching elements, source drivers, gate drivers and controllers, but may be replaced by segmented signal lines and common signal lines. In this case, a segmented signal is supplied to the pixel electrode through the segmented signal line from a driving circuit outside the panel, and the pixel electrode is set to a potential corresponding to the segmented signal. In addition, a common signal is similarly supplied to the common electrode through the common signal line from a driving circuit outside the panel, and is set to a potential corresponding to the common signal. As a result, a longitudinal electric field is generated between the pixel electrode and the common electrode, and the orientation of the liquid crystal molecules in the liquid crystal layer is controlled. Moreover, in the liquid crystal panel 11, in each pixel (first segment 1S, second segment 2S, third segment 3S and fourth segment 4S), the orientation state of the liquid crystal molecules is changed according to the magnitude of the voltage applied to the liquid crystal layer 300, thereby adjusting the polarization state of the light passing through the liquid crystal layer 300.

[0050] Examples of the first support substrate 110 and the second support substrate 210 include insulating substrates such as glass substrates and plastic substrates. Examples of the material of the glass substrate include glass such as float glass and soda glass. Examples of the material of the plastic substrate include plastics such as polyethylene terephthalate, polybutylene terephthalate, polyether sulfone, polycarbonate, and alicyclic polyolefins.

[0051] The metal wiring 100M is extended from the frame wiring 100NL toward the display area 1AA, and is electrically connected to the first transparent conductive layer 130 in the region overlapping with the plurality of spacers 400 when viewed from above. By adopting such a method, the metal wiring 100M can be additionally used as a wiring for inputting a signal to the first transparent conductive layer 130 in addition to the frame wiring 100NL, so that the effective surface resistance of the first transparent conductive layer 130 can be reduced and signal delay can be suppressed. The metal wiring 100M is electrically connected to the frame wiring 100NL.

[0052] The liquid crystal panel 11 of this embodiment includes, for example, a low-resistance metal wiring 100M in contact with the first transparent conductive layer 130 via the contact hole 120CH via the first insulating layer 120. This can reduce the effective resistance value of the first transparent conductive layer 130 and reduce signal delay.

[0053] The first transparent conductive layer 130 preferably has a higher resistance than the metal wiring 100M. By adopting this method, signal delay can be effectively reduced.

[0054] The resistivity of the metal wiring 100M is preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -4 Ω·cm or less, more preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -5 Ω·cm or less, more preferably 1.0×10 -6 Ω·cm or more and 3.0×10 -6 By adopting this method, the signal delay can be effectively reduced.

[0055] The metal wiring 100M is preferably arranged in a mesh shape with the area overlapping with the plurality of spacers 400 as the endpoint 100MS when viewed from above. By adopting such a method, signal delay can be effectively suppressed. The mesh shape, for example, refers to a structure in which the metal wiring 100M branches from each endpoint 100MS into more than 3 directions. The metal wiring 100M preferably has a structure in which it branches from each endpoint 100MS into more than 3 directions and less than 7 directions, and more preferably has a structure in which it branches into more than 4 directions and less than 6 directions. The metal wiring 100M is more preferably arranged in a mesh shape with all areas overlapping with the plurality of spacers 400 as the endpoint 100MS when viewed from above. In addition, the number of branches can be set independently for each endpoint 100MS. The number of branches can also be the same in all endpoints 100MS, and the number of branches in at least a part of the endpoints 100MS can also be different from the number of branches in other endpoints.

[0056] The metal wiring 100M is preferably arranged in a mesh shape with the regions overlapping with the plurality of spacers 400 and the plurality of light shielding portions 200S described later as the endpoints 100MS when viewed from above. By adopting such a method, signal delay can be effectively suppressed and display performance can be improved. The metal wiring 100M is more preferably arranged in a mesh shape with all regions overlapping with the plurality of spacers 400 and the plurality of light shielding portions 200S as the endpoints 100MS when viewed from above.

[0057] When the first transparent conductive layer 130 is a pixel electrode, the metal wiring 100M has a function of supplying an image signal to the first transparent conductive layer 130. When the first transparent conductive layer 130 is a common electrode, the metal wiring 100M has a function of supplying a common signal to the first transparent conductive layer 130.

[0058] The metal wiring 100M includes, for example, a metal such as copper, titanium, aluminum, molybdenum, tungsten, or an alloy thereof. The metal such as copper, titanium, aluminum, molybdenum, tungsten, or an alloy thereof is formed in a single layer or multiple layers by sputtering or the like, and then patterned by photolithography or the like, thereby forming the metal wiring 100M.

[0059] The width of the metal wiring 100M depends on the image size and the required value of the driving speed, but is preferably, for example, not less than 2 μm and not more than 10 μm.

[0060] As the first insulating layer 120 and the second insulating layer 220, an inorganic insulating film, an organic insulating film, or a stack of the organic insulating film and the inorganic insulating film can be used. As the inorganic insulating film, for example, an inorganic film (relative dielectric constant ε = 5 to 7) such as silicon nitride (SiNx) and silicon oxide (SiO2) and a stack of these films can be used. As the organic insulating film, for example, an organic film (relative dielectric constant ε = 2 to 5) having a small relative dielectric constant such as a photosensitive acrylic resin and a stack of these films can be used.

[0061] The first insulating layer 120 is arranged on the liquid crystal layer 300 side of the metal wiring 100M. By adopting this method, the surface of the first substrate 100 on the liquid crystal layer 300 side can be flattened. When wiring (for example, the metal wiring 100M of this embodiment) is arranged in the display area 1AA, there is a possibility that the thickness of the wiring will affect the cell thickness. In this embodiment, the metal wiring 100M is covered with the first insulating layer 120 having a flattening effect, and the first transparent conductive layer 130 is provided on the first insulating layer 120, so that the surface of the first substrate 100 on the liquid crystal layer 300 side can be flattened.

[0062] In the first insulating layer 120 , the contact hole 120CH is provided in the region overlapping with the plurality of spacers 400 in a plan view. In this manner, the first transparent conductive layer 130 and the metal wiring 100M can be electrically connected in the region overlapping with the plurality of spacers 400 .

[0063] At least one of the first transparent conductive layer 130 and the second transparent conductive layer 230 is a transparent electrode. The first transparent conductive layer 130 and the second transparent conductive layer 230 include, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), tin oxide (SnO), etc. The first transparent conductive layer 130 and the second transparent conductive layer 230 can be formed by forming a transparent conductive material such as ITO, IZO, ZnO, SnO, or an alloy thereof in a single layer or multiple layers by sputtering, and then patterning using photolithography.

[0064] The liquid crystal layer 300 includes a liquid crystal material. A voltage is applied to the liquid crystal layer 300 , and the alignment state of liquid crystal molecules in the liquid crystal material is changed according to the applied voltage, thereby controlling the amount of light transmitted.

[0065] The liquid crystal molecules may be liquid crystal molecules having a positive value for the dielectric anisotropy (Δε) defined in the following formula (L), or may be liquid crystal molecules having a negative value. In addition, liquid crystal molecules having positive dielectric anisotropy are also referred to as positive liquid crystals, and liquid crystal molecules having negative dielectric anisotropy are also referred to as negative liquid crystals. In addition, the long axis direction of the liquid crystal molecules becomes the direction of the slow axis. In addition, the liquid crystal molecules are uniformly oriented in a state where no voltage is applied (voltage non-applied state), and the direction of the long axis of the liquid crystal molecules in a voltage non-applied state is also referred to as the direction of the initial orientation of the liquid crystal molecules. Δε=(dielectric constant of the long axis of the liquid crystal molecule)-(dielectric constant of the short axis of the liquid crystal molecule) (L)

[0066] The plurality of spacers 400 have the function of ensuring a gap in the space forming the liquid crystal layer 300. That is, the plurality of spacers 400 have the function of maintaining the cell thickness (the thickness of the liquid crystal layer 300). Each spacer 400 is, for example, in the shape of a column. The planar shape of each spacer 400 may be, for example, a polygonal shape, a circular shape, or an elliptical shape. In addition, the spacer is also referred to as a photo spacer, PS.

[0067] Each spacer 400 preferably includes, for example, a cured product of a photosensitive resin. Examples of the photosensitive resin include resins having an ultraviolet-reactive functional group.

[0068] In addition, the plurality of spacers 400 provided in the liquid crystal panel 11 are preferably arranged at a position where it is not easy to generate moiré fringes between the shading pattern of the image display panel 12 arranged on the back side. By adopting such a method, the moiré fringes generated by the configuration of the metal wiring 100M can be reduced. If the plurality of spacers 400 is a structure that is not easy to generate moiré fringes between the shading pattern of the image display panel 12, it is considered that the wiring connecting the patterns of the plurality of spacers 400, that is, the metal wiring 100M, also obtains the effect of not being easy to generate moiré fringes. In addition, the shading pattern of the image display panel 12 is a shading member that overlaps with the plurality of spacers provided by the image display panel 12 when viewed from above, and is arranged on the observation side of the plurality of spacers provided by the image display panel 12.

[0069] The plurality of spacers 400 are preferably randomly arranged, for example. Here, the plurality of components (for example, the plurality of spacers 400) are randomly arranged, which means that the plurality of components are not periodically arranged in at least a portion of the liquid crystal panel 11 when viewed from above. Alternatively, the plurality of components may have a repetitive cycle, for example, and be randomly arranged within the repetitive cycle.

[0070] Due to manufacturing and operation considerations, it is difficult to realize that the above-mentioned multiple components are randomly arranged (completely without periodicity) in all areas of the liquid crystal panel 11 when viewed from above. For example, there is a possibility of periodicity when using step exposure. In this embodiment, a certain degree of periodicity is allowed, and if the above-mentioned multiple components are randomly arranged within the period, it is equivalent to random arrangement.

[0071] It is preferred that the plurality of spacers 400 have a repetition period and are randomly arranged within the repetition period, the plurality of light shielding portions 200S have a repetition period and are randomly arranged within the repetition period, and the repetition period of the arrangement of the plurality of spacers 400 is larger than the repetition period of the arrangement of the plurality of light shielding portions 200S and is a non-integer multiple of the repetition period of the arrangement of the plurality of light shielding portions 200S. By adopting such a method, interference generated between the plurality of spacers 400 and the plurality of light shielding portions 200S can be suppressed, and moire fringes can be suppressed.

[0072] Here, the repetition period of the arrangement of the plurality of spacers 400 and the repetition period of the arrangement of the plurality of light shielding portions 200S are determined based on the constraints of the manufacturing device and the constraints for performing actual design operations. Based on the constraints of the manufacturing device and the constraints for performing actual design operations, the repetition period of the arrangement of the plurality of spacers 400 is preferably set as large as possible than the repetition period of the arrangement of the plurality of light shielding portions 200S. By adopting such a method, the interference generated between the plurality of spacers 400 and the plurality of light shielding portions 200S can be further suppressed, and the moire fringes can be further suppressed.

[0073] In the present embodiment, random arrangement is given as an example, but other arrangements may be used as long as moire fringes can be avoided.

[0074] Preferably, the first substrate 100 or the second substrate 200 has a plurality of shading portions 200S, and the plurality of shading portions 200S overlap with the plurality of spacers 400 when viewed from above and are arranged on the observation side of the plurality of spacers 400 and the metal wiring 100M, and the metal wiring 100M is electrically connected to the transparent conductive layer 130 in the region overlapping with the plurality of spacers 400 and the plurality of shading portions 200S when viewed from above. By adopting such a method, signal delay can be suppressed, and the disorder of the liquid crystal orientation is not easily visually recognized, and the display performance can be improved. The plurality of shading portions 200S are shading patterns for shading the plurality of spacers 400. In the present embodiment, the endpoints of the metal wiring 100M are aligned with the shading pattern.

[0075] The first insulating layer 120 is provided with a contact hole 120CH in a region overlapping with the plurality of light shielding portions 200S (i.e., a region overlapping with both the plurality of spacers 400 and the plurality of light shielding portions 200S) in a plan view. In this manner, the first transparent conductive layer 130 can be electrically connected to the metal wiring 100M in a region overlapping with the plurality of light shielding portions 200S (i.e., a region overlapping with both the plurality of spacers 400 and the plurality of light shielding portions 200S).

[0076] Thus, the contact hole 120CH of this embodiment is arranged directly below the plurality of light shielding portions 200S. The height difference of the contact hole 120CH causes the alignment disorder of the liquid crystal, and therefore, by arranging the contact hole 120CH directly below the plurality of light shielding portions 200S, it is possible to suppress the degradation of the display quality.

[0077] The hole structure of the contact hole 120CH connecting the first transparent conductive layer 130 and the metal wiring 100M causes the disorder of the liquid crystal orientation, so it is preferable to shield light. It is preferable that the metal wiring 100M of this embodiment is configured to have a plurality of light shielding portions 200S as light shielding patterns that shield the plurality of spacers 400 of the liquid crystal panel 11 as end points, and to be electrically connected to the first transparent conductive layer 130 at a position overlapping with the plurality of light shielding portions 200S. By adopting such a method, the disorder of the liquid crystal orientation caused by the contact hole 120CH is not easily visible, and the display performance can be improved.

[0078] in addition, Figure 6, the first substrate 100 is arranged on the back side, the second substrate 200 is arranged on the observation side, and the second substrate 200 has a plurality of light shielding portions 200S, but the arrangement of the plurality of light shielding portions 200S is not limited thereto. In the case where the first substrate 100 is arranged on the observation side and the second substrate 200 is arranged on the back side, for example, the first substrate 100 has a plurality of light shielding portions 200S. Specifically, the plurality of light shielding portions 200S are arranged on the observation side of the metal wiring 100M in the first substrate 100.

[0079] Similar to the plurality of spacers 400, the plurality of light shielding portions 200S provided in the liquid crystal panel 11 are preferably arranged at positions where moire fringes are not easily generated with the light shielding pattern of the image display panel 12 arranged on the back side. By adopting such a method, moire fringes generated by the arrangement of the metal wiring 100M can be reduced. If the plurality of light shielding portions 200S are of a structure that is not easy to generate moire fringes with the light shielding pattern of the image display panel 12, it is considered that the wiring connecting the patterns of the plurality of light shielding portions 200S, that is, the metal wiring 100M, also obtains an effect that moire fringes are not easily generated.

[0080] The plurality of light shielding portions 200S are preferably arranged randomly, for example. In the present embodiment, random arrangement is given as an example, but other arrangements may be used as long as moire fringes can be avoided.

[0081] Thus, the liquid crystal panel 11 of the present embodiment includes a plurality of spacers 400 and a plurality of light shielding portions 200S as light shielding patterns thereof. The liquid crystal panel 11 further includes a metal wiring 100M, which is disposed on the lower layer of the solid transparent electrode (the first transparent conductive layer 130 in the present embodiment) via the first insulating layer 120, and is electrically connected to the first transparent conductive layer 130 via a contact hole 120CH provided in the first insulating layer 120. The metal wiring 100M is wired so that at least a portion of the light shielding portions 200S, which are the light shielding patterns of the plurality of spacers 400, is used as an end point, and is disposed so that the contact portion between the metal wiring 100M and the first transparent conductive layer 130 overlaps with the plurality of light shielding portions 200S.

[0082] Here, moiré fringes are sometimes generated between the periodicity of the pixel structure in the display (liquid crystal, plasma, electroluminescence) and the periodicity of the bonded optical film. If the pixel structure itself is randomly configured, moiré fringes can be avoided, but if it is completely randomized, uneven light and dark will be produced on the image. In contrast, in the above-mentioned patent document 1, a technology is disclosed: by randomly configuring the pixels on the side of the image display panel according to certain rules, moiré fringes are avoided while also avoiding uneven light and dark of the image. In this way, in patent document 1, a method such as random wiring is disclosed. However, the technology of patent document 1 is limited to image display panels, and is not disclosed for active phase difference plate panels. In addition, in patent document 1, the positional relationship between the spacer and the metal wiring and the positional relationship between the shading pattern for shading the spacer and the metal wiring are not separately stated.

[0083] The first transparent conductive layer 130 is divided into three or more segments along one direction of the liquid crystal panel 11. In this way, the first transparent conductive layer 130 has a smaller segment size ( Figure 2 The second segment S2 and the third segment S3 in the frame area 1NA are shown in FIG. 1 . When a signal is input from a signal line (frame wiring 100NL) arranged in the frame area 1NA to the first transparent conductive layer 130, a signal delay may occur in a segment having fewer connecting edges with the frame area 1NA. However, the liquid crystal panel 11 of the present embodiment includes a metal wiring 100M, and therefore, a signal can be input via the metal wiring 100M with respect to a segment having fewer connecting edges with the frame area 1NA, and signal delay can be effectively suppressed. Thus, the liquid crystal panel 11 of the present embodiment is particularly suitable for a pixel having fewer connecting edges between the signal line of the frame area 1NA and the first transparent conductive layer 130 due to the division of the first transparent conductive layer 130.

[0084] Next, the image display panel 12 will be described. The image display panel 12 preferably includes a plurality of pixels. The pixel is a display unit for displaying an image, and in the case of color display, includes, for example, red, blue, and green pixels.

[0085] The image display panel 12 may also include a TFT substrate on which a plurality of TFTs are arranged. The TFT substrate may also include a plurality of gate lines extending in parallel to each other on a support substrate and a plurality of source lines extending in parallel to each other in a direction intersecting the gate lines via a gate insulating film. The plurality of gate lines and the plurality of source lines may also be formed in a grid shape when viewed from above, and each area divided by the plurality of gate lines and the plurality of source lines corresponds to a pixel.

[0086] The supporting substrate is preferably a transparent substrate, and examples thereof include a glass substrate and a plastic substrate.

[0087] A TFT as a switching element may be arranged at the intersection of each gate line and each source line for each pixel. Alternatively, the gate terminal of the TFT may be connected to the gate line, the source terminal may be connected to the source line, and the drain terminal may be connected to the pixel electrode. The image display panel 12 may also have a common electrode that is separate from the above-mentioned pixel electrode and to which a common electrode voltage is applied.

[0088] The image display panel 12 may be a liquid crystal display panel, an OLED panel including an organic light emitting diode (OLED), or a QD-LED panel including a quantum dot light emitting diode (QD-LED). In this specification, when OLED and QD-LED are not particularly distinguished, they are also referred to as light emitting diodes (LEDs).

[0089] When the image display panel 12 is a liquid crystal display panel, the image display panel 12 includes a TFT substrate, an opposing substrate disposed opposite to the TFT substrate, and a liquid crystal layer disposed between the TFT substrate and the opposing substrate. A color filter layer is disposed on the TFT substrate or the opposing substrate.

[0090] When the image display panel 12 is an OLED panel or a QD-LED panel, the structure of the light emitting diode is not particularly limited, and for example, a structure in which a cathode, an electron transport layer, a light emitting layer, a hole transport layer, and an anode are stacked in this order can be cited.

[0091] The materials of the cathode and the anode are not particularly limited, but examples thereof include transparent conductive materials such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), In3O3, SnO2, ZnO, aluminum, silver, or alloys thereof.

[0092] In the case of a top-emitting LED, the pixel electrode of the TFT substrate may be used as an anode, and the common electrode may be used as a cathode. A reflective electrode such as aluminum, silver, or an alloy thereof may be used as an anode, and the transparent conductive material may be used as a cathode.

[0093] The hole transport layer is a layer that transports holes injected from the anode to the light-emitting layer. The material of the hole transport layer is not particularly limited, but examples thereof include amine compounds such as N,N,N',N'-tetraphenylbenzidine and its derivatives.

[0094] The electron transport layer is a layer that transports electrons injected from the cathode to the light-emitting layer. The material of the electron transport layer is not particularly limited, but examples thereof include phenanthroline derivatives such as 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), quinoline derivatives such as tris(8-hydroxyquinoline)aluminum (Alq3), azaindolizine derivatives, oxadiazole derivatives, perylene derivatives, pyridine derivatives, pyrimidine derivatives, quinoxaline derivatives, diphenylquinone derivatives, nitro-substituted fluorene derivatives, and the like.

[0095] An electron injection layer may be provided between the cathode and the electron transport layer. In addition, a hole injection layer may be provided between the anode and the hole transport layer. As the material of the electron injection layer, an inorganic insulating material may be used, and examples thereof include oxides or halides of alkali metals and oxides or halides of alkaline earth metals.

[0096] When the image display panel 12 is an OLED, the light-emitting layer may include a fluorescent material, a phosphorescent material, or the like as a light-emitting material.

[0097] When the image display panel 12 is a QD-LED panel, the light-emitting layer may also include quantum dots as a light-emitting material. Quantum dots are nanoscale (e.g., average particle size of 2 to 10 nm) semiconductor crystals having optical properties based on quantum mechanics, such as colloidal particles consisting of approximately 10 to 50 atoms.

[0098] (Variation 1 of Implementation Example 1) Figure 7 This is an enlarged schematic plan view of a liquid crystal panel according to Modification 1 of Embodiment 1. Figure 7 1 is an enlarged schematic plan view of the display area 1AA. In the first embodiment, the metal wiring 100M is described as being arranged in a mesh shape with all regions overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as the endpoints 100MS. However, the metal wiring 100M provided in the liquid crystal panel 11 of this modification is as follows: Figure 7 As shown, in a plan view, the end points 100MS are arranged in a mesh shape with a portion of the area overlapping with the plurality of spacers 400 (more specifically, the plurality of spacers 400 and the plurality of light shielding portions 200S) as the end points. By adopting such a method, even when the density of the plurality of spacers 400 is high, the reduction in transmittance can be suppressed, and signal delay can be suppressed.

[0099] The metal wiring 100M is preferably arranged in a mesh shape with 1% or more and 50% or less of the total number of regions overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as endpoints 100MS, more preferably 1% or more and 30% or less as endpoints 100MS, and further preferably 1% or more and 10% or less as endpoints 100MS. The liquid crystal panel 11 of this modified example is preferably used when the density of the plurality of spacers 400 is high.

[0100] In the liquid crystal panel 11 of this modification, the metal wiring 100M is arranged for a part of the pattern (light shielding pattern) of the plurality of light shielding portions 200S. Which light shielding pattern the metal wiring 100M is arranged with as the end point 100MS is determined by, for example, the following procedure.

[0101] 1. The allowable reduction in aperture ratio and the required signal delay are estimated based on the specifications of the liquid crystal panel 11, and the number of 100MS terminals per unit area is determined. 2. Select a light shielding pattern that is less likely to cause moire fringes between the liquid crystal panel 11 and the rear display (image display panel 12) by the number determined in 1 above. This can be, for example, random arrangement. 3. The metal wiring 100M is arranged with the light shielding pattern determined according to the above 2 as the terminal point 100MS.

[0102] Thus, in this modification, the metal wiring 100M is arranged with a part of the light shielding pattern as the end point 100MS. The metal wiring 100M arranged in the display area 1AA causes a decrease in transmittance, and therefore, it is desirable that the number of metal wirings 100M is minimized.

[0103] In the liquid crystal panel 11 of the first embodiment, when the density of the plurality of spacers 400 is high, the transmittance may be significantly reduced, and the effective resistance value of the first transparent conductive layer 130 may become too small. However, in the liquid crystal panel 11 of this modification, even when the density of the plurality of spacers 400 is high, the reduction in transmittance can be suppressed.

[0104] (Variation 2 of Implementation Example 1) Figure 8 This is an enlarged schematic plan view of a liquid crystal panel according to Modification 2 of Embodiment 1. Figure 81 is an enlarged plan view of the display area 1AA. In the liquid crystal panel 11 according to the first embodiment and the first variant of the first embodiment, the metal wiring 100M is arranged in a mesh shape with the regions overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as the end points 100MS. However, the metal wiring 100M provided in the liquid crystal panel 11 of the present variant is as follows: Figure 8 The illustrated embodiment extends in only one direction with the region overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as the end point 100MS in a plan view. By adopting such a method, it is possible to suppress a decrease in transmittance and suppress signal delay.

[0105] More specifically, the first transparent conductive layer 130 of this modification is preferably divided into three or more segments along the first direction of the liquid crystal panel 11, that is, the y-axis direction (longitudinal direction), and the metal wiring 100M is extended along the second direction orthogonal to the first direction, that is, the x-axis direction (lateral direction), with the region overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as the end point 100MS when viewed from above, and is not extended in the first direction. The additional metal wiring 100M may reduce the transmittance, but in this modification, the metal wiring 100M is limited to being arranged in the lateral direction, so that the effective resistance value of the first transparent conductive layer 130 can be effectively reduced, and the reduction in transmittance can be suppressed.

[0106] Here, the metal wiring 100M is extended along the second direction (x-axis direction, lateral direction of the liquid crystal panel 11) means that the angle formed by the metal wiring 100M and the second direction is 50° or less. The angle θ formed by the metal wiring 100M and the second direction (x-axis direction, lateral direction of the liquid crystal panel 11) is preferably 45° or less. In addition, when the metal wiring 100M cannot be arranged at an appropriate angle due to the random arrangement of multiple spacers 400, the angle θ is not limited to the above range.

[0107] In this modification, the metal wiring 100M is arranged in consideration of the shape of the first transparent conductive layer 130 and how the signal delay is distributed according to the shape of the first transparent conductive layer 130. For example, the second segment 2S of the first transparent conductive layer 130 is connected to the frame wiring 100NL at the left and right sides of the liquid crystal panel 11, and a signal is input from this portion. It is considered that the signal delay inside the second segment 2S has a distribution in the left and right directions. Therefore, if the resistance of the first transparent conductive layer 130 can be reduced only in the left and right (i.e., horizontal) direction, the effect of reducing the signal delay can be fully exerted. On the other hand, even if the metal wiring 100M is arranged in the up and down (i.e., vertical) direction, the contribution to the improvement of the point where the signal is most delayed in the plane of the second segment 2S is small.

[0108] Hereinafter, the effects of the present invention will be described with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.

[0109] (Example 1) The liquid crystal panel 11 of this embodiment is a liquid crystal panel 11 corresponding to the above-mentioned Embodiment 1. The liquid crystal panel 11 of this embodiment includes metal wiring 100M, and the metal wiring 100M is arranged in a mesh shape with all areas overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as endpoints 100MS when viewed from above, thereby being able to reduce the effective surface resistance of the first transparent conductive layer 130 and suppress signal delay.

[0110] (Example 2) The liquid crystal panel 11 of the present embodiment is a liquid crystal panel 11 corresponding to the variation 1 of the above-mentioned embodiment 1. The liquid crystal panel 11 of the present embodiment includes a metal wiring 100M, and the metal wiring 100M is arranged in a mesh shape with a portion of the area overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as an end point 100MS when viewed from above, thereby suppressing a decrease in transmittance and suppressing signal delay.

[0111] (Example 3) The liquid crystal panel 11 of the present embodiment is a liquid crystal panel 11 corresponding to the variation 2 of the above-mentioned embodiment 1. The liquid crystal panel 11 of the present embodiment includes a metal wiring 100M, and the metal wiring 100M is extended in only one direction with the region overlapping with the plurality of spacers 400 (more specifically, both the plurality of spacers 400 and the plurality of light shielding portions 200S) as an end point 100MS when viewed from above, thereby suppressing a decrease in transmittance and suppressing signal delay.

[0112] The various aspects of the present invention described above may be appropriately combined within the scope not departing from the gist of the present invention. Description of Reference Numerals

[0113] 1AA: display area; 1NA: border area; 1S, 2S, 3S, 4S: segmentation; 10: display device; 11: LCD panel; 11R: Active phase difference panel; 12: Image display panel; 13: Backlight; 100, 200: substrate; 100M: Metal wiring; 100MS: endpoint; 100NL: Border wiring; 110, 210: Support base plate; 120, 220: insulation layer; 120CH: contact hole; 130, 230: transparent conductive layer; 200S: shading part; 300: liquid crystal layer; 400: Spacer.

Claims

1. A liquid crystal panel, characterized in that: A display area and a frame area arranged around the display area are provided. The invention also comprises a first substrate, a second substrate arranged opposite to the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and a plurality of spacers. The first substrate or the second substrate has a frame wiring arranged in the frame area, The first substrate has: a transparent conductive layer; and a metal wiring extending from the frame wiring toward the display area and electrically connected to the transparent conductive layer in a region overlapping with the plurality of spacers when viewed from above.

2. The liquid crystal panel according to claim 1, characterized in that: The first substrate or the second substrate has a plurality of shading portions, and the plurality of shading portions overlap with the plurality of spacers when viewed from above, and are arranged on the observation surface side rather than the plurality of spacers and the metal wiring. The metal wiring is electrically connected to the transparent conductive layer in an area overlapping with the plurality of spacers and the plurality of shading portions when viewed from above.

3. The liquid crystal panel according to claim 1, characterized in that: The transparent conductive layer is divided into more than three segments along one direction of the liquid crystal panel.

4. The liquid crystal panel according to claim 1, characterized in that: The metal wiring is provided in a mesh shape with regions overlapping the plurality of spacers as end points in a plan view.

5. The liquid crystal panel according to claim 1, characterized in that: The metal wiring is provided in a mesh shape with all regions overlapping the plurality of spacers as endpoints in a plan view.

6. The liquid crystal panel according to claim 1, characterized in that: The metal wiring is provided in a mesh shape with a portion of a region overlapping the plurality of spacers as an end point in a plan view.

7. The liquid crystal panel according to claim 1, characterized in that: The metal wiring is extended in only one direction with the region overlapping with the plurality of spacers as an end point in a plan view.

8. The liquid crystal panel according to claim 1, characterized in that: The transparent conductive layer is divided into more than three segments along a first direction of the liquid crystal panel, The metal wiring is extended in a second direction perpendicular to the first direction with a region overlapping with the plurality of spacers as an end point in a plan view, and is not extended in the first direction.

9. The liquid crystal panel according to claim 8, characterized in that: An angle formed between the metal wiring and the second direction is less than 45°.

10. The liquid crystal panel according to claim 1, characterized in that: The plurality of spacers are randomly arranged.

11. A display device, characterized in that: have: The liquid crystal panel according to any one of claims 1 to 10; an image display panel disposed on the rear side of the liquid crystal panel; and A backlight is arranged on the back side of the image display panel.

Images