Liquid crystal panel and liquid crystal display device

Abstract

To provide a liquid crystal panel capable of preventing strabismus color mixture from occurring, excellent in transmittance and capable of corresponding to the need of high definition; a liquid crystal display device including the liquid crystal panel; and a head mounted display device.SOLUTION: A liquid crystal panel includes: a first substrate including a plurality of pixels arranged in a matrix manner; a second substrate facing the first substrate; and a liquid crystal layer positioned between the first and second substrates. The first substrate includes a support substrate, a plurality of source wirings, a plurality of gate wirings and a plurality of switching elements; each pixel specified by two gate wirings adjacent to each other and two source wirings adjacent to each other includes a pixel electrode and a color filter layer; a first light shielding layer is provided between the two color filter layers adjacent to each other; the second substrate includes a support substrate and a second light shielding layer; and the first and second light shielding layers are arranged in a direction approximately orthogonal to each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] A typical liquid crystal panel, which is a main component of a liquid crystal display device, is configured by bonding a TFT array substrate, on which pixel electrodes and switching elements are arranged, and a color filter substrate, which serves as an opposing substrate, with a liquid crystal layer in between. In such liquid crystal panels, a voltage is applied to the liquid crystal layer, and the amount of light transmitted is controlled by changing the orientation of the liquid crystal molecules according to the applied voltage.

[0003] In recent years, LCD panels have been required to have higher resolution (i.e., higher definition). In high-definition LCD panels, the area per pixel is smaller than that of low-definition LCD panels. For example, for VR-HMD applications, specifications with a pixel pitch of less than 10 μm are required. As pixels become more fine, the impact of a decrease in aperture ratio becomes greater. To ensure the aperture ratio, the line width of the light-shielding layer between adjacent different colors is designed to be as narrow as about 3 μm for each substrate. Since there is usually a variation (also called misalignment) of about 1 to 2 μm when bonding substrates together, the narrower the line width of the light-shielding layer, the more pronounced the problem of so-called "slanted color mixing," in which light of adjacent colors mixes when light passes through the liquid crystal layer at an angle, reducing visibility.

[0004] As a technique for suppressing misalignment when bonding substrates together, for example, a technique for arranging a color filter on the TFT array substrate, that is, a technique for forming a TFT array substrate into a COA (Color filter On Array) structure, has been developed. For example, Patent Document 1 discloses a color filter substrate equipped with both switching elements and a color filter layer. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-105121 A Summary of the Invention [Problem to be solved by the invention]

[0006] FIG. 17 is a schematic cross-sectional view conceptually showing an example of a conventional liquid crystal panel 1R. As shown in FIG. 17, the liquid crystal panel 1R is configured by bonding a TFT array substrate 10 and a counter substrate 30 with a liquid crystal layer 20 interposed therebetween. A color filter layer CF is formed on the counter substrate 30, and a light-shielding layer BM is disposed so as to overlap the boundary between two adjacent color filter layers CF. In this case, in addition to the large positional deviation during bonding, the color of the adjacent color filter layer CF is mixed with the light 1LB obliquely incident from a light source installed on the opposite side of the liquid crystal layer 20 of the TFT array substrate 10, resulting in oblique color mixing. FIG. 17 is a diagram for explaining the mechanism by which oblique color mixing occurs in a conventional liquid crystal panel.

[0007] Therefore, the present inventors have been studying the technology to suppress the oblique color mixture, and have noticed that, considering that the pixel electrodes that regulate the orientation of the liquid crystal molecules are arranged on the TFT array substrate side, the TFT array substrate needs to have a COA structure in order to prevent the occurrence of the oblique color mixture even if there is a misalignment during lamination. For example, if a color filter layer is arranged on the upper layer of the circuit of the TFT array substrate, and a contact portion that penetrates the color filter layer is provided, and the circuit on the lower layer is connected to the pixel electrode on the upper layer through the contact portion, it is considered that a TFT array substrate with a COA structure can be efficiently obtained. However, it is necessary to arrange a light-shielding layer at the joint between adjacent colors to block light. In addition, since the color filter layer is not arranged at the contact portion, it is necessary to block light that passes through the contact portion. Therefore, a lattice-shaped black matrix (also called BM) that surrounds each pixel is required.

[0008] Therefore, further consideration was given to the placement of the BM. For example, if the BM is formed on the opposing substrate side, it becomes difficult to achieve the function of blocking light at the seams between colors, taking into account the misalignment that occurs when the substrates are bonded together. On the other hand, if the BM is formed on the TFT array substrate side, and a resin BM is used, the steps in the resin impair the flatness of the substrate surface, causing problems such as impaired alignment of the liquid crystal, reduced contrast, and difficulty in controlling the cell thickness, making it difficult to apply. One option for reducing the steps is to form the BM from a metal material (i.e., to use a metal BM). However, metal has a high reflectivity, and if left as is, this impairs the reflectivity of the liquid crystal display device.

[0009] Patent Document 1 proposes a special division of the display section in a color filter substrate with a COA structure, and proposes providing a light-shielding layer facing the gate wiring of the color filter substrate on the opposing substrate side. Patent Document 1 discloses that, in order to prevent light reflection by the source wiring, (i) an anti-reflection film made of a material such as TiN (titanium nitride) is formed on the surface of the source wiring, or (ii) ends of colored color filters are overlapped near the source wiring, and these methods make the light-shielding layer overlapping the source wiring unnecessary. However, this device cannot sufficiently suppress oblique color mixing. In addition, the light-shielding by color overlapping in (ii) has unstable light-shielding characteristics because there is variation in the width where multiple colors overlap and the film thickness of each color. The anti-reflection film using TiN in (i) has a much higher reflectance than a general resin BM, and is therefore not practical as a replacement for BM.

[0010] The present invention has been made in view of the above-mentioned current situation, and aims to provide a liquid crystal panel that can suppress the occurrence of oblique color mixing, has excellent transmittance, and can meet the needs for higher definition. Another aim of the present invention is to provide a liquid crystal display device and a head-mounted display device that include such a liquid crystal panel. [Means for solving the problem]

[0011] (1) One embodiment of the present invention is a liquid crystal panel comprising a first substrate having a plurality of pixels arranged in a matrix, a second substrate opposed to the first substrate, and a liquid crystal layer located between the first substrate and the second substrate, wherein the first substrate comprises a support substrate, a plurality of source wirings, a plurality of gate wirings substantially perpendicular to the source wirings, and a plurality of switching elements located at intersections of the source wirings and the gate wirings, each pixel is defined by two adjacent gate wirings and two adjacent source wirings, each pixel has a pixel electrode and a color filter layer, and a first light-shielding layer is provided between the two adjacent color filter layers, and the second substrate comprises a support substrate and a second light-shielding layer, and the first light-shielding layer and the second light-shielding layer are arranged in directions substantially perpendicular to each other.

[0012] (2) Furthermore, one embodiment of the present invention is a liquid crystal panel, in addition to the configuration of (1) above, wherein the first light-shielding layer overlaps one of the gate wiring or the source wiring, and the second light-shielding layer overlaps the other one.

[0013] (3) Furthermore, one embodiment of the present invention is a liquid crystal panel, in addition to the configuration of (1) or (2) above, wherein the first light-shielding layer overlaps the source line and the second light-shielding layer overlaps the gate line.

[0014] (4) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), or (3), the first light-shielding layer is formed of a metal material, and the second light-shielding layer is formed of a resin material.

[0015] (5) Furthermore, another embodiment of the present invention is a liquid crystal panel, in addition to the configuration of (4) above, wherein the first light-shielding layer has a multilayer structure in which two or more metal layers are arranged with an insulating layer interposed therebetween.

[0016] (6) Moreover, in one embodiment of the present invention, in addition to the configuration of (3), (4), or (5), the width of the second light-shielding layer is equal to or smaller than the width of the gate line.

[0017] (7) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), (3), (4), (5), or (6), the first substrate further comprises a common electrode.

[0018] (8) Moreover, in one embodiment of the present invention, in addition to the configuration of (7) above, the first light-shielding layer is formed of a metal material and disposed so as to be in contact with the common electrode.

[0019] (9) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), (3), (4), (5), (6), (7) or (8), the first substrate further comprises a first horizontal alignment film, one surface of the first horizontal alignment film being in contact with the liquid crystal layer and the other surface being in contact with the first light-shielding layer, and the second substrate further comprises a second horizontal alignment film in contact with the liquid crystal layer.

[0020] (10) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), (3), (4), (5), (6), (7), (8) or (9), each of the pixels further has a contact hole provided in the color filter layer, the switching element and the pixel electrode are electrically connected via the contact hole, and the second light-shielding layer overlaps the contact hole.

[0021] (11) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), (3), (4), (5), (6), (7), (8), (9) or (10), at least one of the plurality of pixels further has a columnar spacer, the columnar spacer overlaps the second light-shielding layer, and the width of the columnar spacer is greater than the width of the second light-shielding layer.

[0022] (12) Furthermore, in one embodiment of the present invention, in addition to the configuration of (1), (2), (3), (4), (5), (6), (7), (8), (9), (10) or (11), the second substrate further comprises a third light-shielding layer at a position overlapping the first light-shielding layer.

[0023] (13) Furthermore, in addition to the configuration of (12), an embodiment of the present invention is a liquid crystal panel, wherein the first light-shielding layer is formed of a metal material, and the third light-shielding layer is formed of a resin material.

[0024] (14) Furthermore, in addition to the configuration of (12) or (13), an embodiment of the present invention is a liquid crystal panel, wherein the width of the third light-shielding layer is equal to or smaller than the width of the first light-shielding layer.

[0025] (15) Also, another embodiment of the present invention is a liquid crystal display device comprising the liquid crystal panel described above in (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), (13), or (14).

[0026] (16) Also, another embodiment of the present invention is a head-mounted display device comprising the liquid crystal panel described above in (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), (13) or (14). Effect of the Invention

[0027] According to the present invention, it is possible to provide a liquid crystal panel that can suppress the occurrence of oblique color mixing, has excellent transmittance, and can meet the needs for high definition. Furthermore, according to the present invention, it is also possible to provide a liquid crystal display device and a head mounted display device that include such a liquid crystal panel. [Brief description of the drawings]

[0028] [Figure 1]FIG. 1 is a diagram conceptually illustrating a structure of a liquid crystal panel. [Diagram 2] 1 is a schematic plan view of an entire liquid crystal panel as viewed from the observation surface side. [Diagram 3] FIG. 2 is a schematic enlarged plan view showing a portion of a liquid crystal panel. [Figure 4] 4 is a cross-sectional view taken along line AB in FIG. 3 (cross-sectional view taken along line AB). [Diagram 5] FIG. 13 is a diagram for explaining a light blocking mechanism. [Figure 6] 1 is a schematic cross-sectional view of a liquid crystal display device; [Figure 7] FIG. 2 is a schematic perspective view showing an example of the appearance of an HMD. [Figure 8] FIG. 2 is a schematic enlarged plan view showing a portion of a liquid crystal panel. [Figure 9] 9 is a cross-sectional view taken along line AB in FIG. 8 (cross-sectional view taken along line AB). [Figure 10] 4 is a cross-sectional view taken along line AB in FIG. 3 (cross-sectional view taken along line AB). [Figure 11] 11 is an enlarged view of the area enclosed by the dashed line in FIG. [Figure 12] FIG. 13 is a diagram for explaining a light blocking mechanism. [Figure 13A] 11 is an enlarged view of the area enclosed by the dashed line in FIG. [Figure 13B] 11 is an enlarged view of the area enclosed by the dashed line in FIG. [Figure 13C] 11 is an enlarged view of the area enclosed by the dashed line in FIG. [Figure 14] 4 is a cross-sectional view taken along line AB in FIG. 3 (cross-sectional view taken along line AB). [Figure 15] FIG. 14 is a schematic cross-sectional view focusing on the third light-shielding layer BMb2 and the first light-shielding layer BMa. [Figure 16] FIG. 13 is a diagram for explaining a light blocking mechanism. [Figure 17] 1A and 1B are diagrams for explaining a mechanism by which oblique color mixing occurs in a conventional liquid crystal panel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] (Definition of terms) In this specification, the observation side means the side closer to the screen (display surface) of the image display device, and the rear side means the side farther from the screen (display surface) of the image display device.

[0030] "Approximately parallel" means that the angle (absolute value) between the two is within the range of 0°±10°, and this angle is preferably within the range of 0°±5°, and more preferably 0° (i.e., parallel in the narrow sense). "Approximately perpendicular" (or approximately perpendicular) means that the angle (absolute value) between the two is within the range of 90°±10°, and this angle is preferably within the range of 90°±5°, and more preferably 90° (i.e., orthogonal or perpendicular in the narrow sense).

[0031] The transmittance is the visible light transmittance. Visible light means light with a wavelength of 380 nm or more and less than 800 nm.

[0032] Hereinafter, a liquid crystal panel and a liquid crystal display device according to an embodiment of the present invention will be described. The present invention is not limited to the contents described in the following embodiments, and appropriate design changes can be made within the scope of the configuration of the present invention. In the drawings, (R), (G), and (B) suffixed to the reference symbols of the color filter layer CF and the pixels Px respectively represent red, green, and blue, but are not limited thereto.

[0033] (Embodiment 1) Fig. 1 is a diagram conceptually showing the structure of a liquid crystal panel according to an example of the present embodiment. Fig. 2 is a plan view schematic diagram of the entire liquid crystal panel as viewed from the observation surface side. Fig. 3 is a plan view schematic diagram showing an enlarged portion of the liquid crystal panel. Fig. 4 is a cross-sectional view (cross-sectional view along line AB) in Fig. 3.

[0034] 1, the liquid crystal panel 1X includes a first substrate 10, a liquid crystal layer 20, and a second substrate 30 in this order. That is, the liquid crystal layer 20 is sandwiched between the first substrate 10 and the second substrate 30, which are arranged opposite to each other. For example, the first substrate 10, the liquid crystal layer 20, and the second substrate 30 are arranged in this order from the rear surface side toward the observation surface side. The liquid crystal layer 20 is usually sealed between the first substrate 10 and the second substrate 30 with a sealant (not shown).

[0035] The first substrate 10 has a plurality of pixels Px arranged in a matrix (see FIG. 2). Specifically, the first substrate 10 includes a support substrate 100, a plurality of source wirings (also called signal lines) SL, a plurality of gate wirings (also called scanning lines) GL, and a plurality of switching elements 110 arranged on the support substrate 100. The support substrate 100 is preferably transparent and insulating. Examples of the support substrate 100 include a glass substrate and a plastic substrate.

[0036] As shown in FIG. 2, the source lines SL are arranged in a column direction (vertical direction in the drawing) in the display section AA at the center of the liquid crystal panel 1X and are arranged in parallel to each other. The gate lines GL are arranged in a row direction (horizontal direction in the drawing) in a row direction so as to intersect each source line SL at a right angle and are arranged in parallel to each other. The source lines SL and the gate lines GL are formed in a matrix (lattice) as a whole so as to partition each pixel. An approximately rectangular area surrounded by two adjacent gate lines GL and two adjacent source lines SL forms one pixel. That is, each pixel Px is defined by two adjacent gate lines GL and two adjacent source lines SL. In FIG. 2, the gate drivers GD are arranged on both sides of the display section AA (both left and right sides in the drawing), but the gate drivers GD may be arranged on either the left or right side.

[0037] In each pixel Px, a switching element 110 is disposed at an intersection between a source line SL and a gate line GL. In this embodiment, a thin film transistor (TFT) is used as the switching element 110. The TFT 110 (more specifically, a semiconductor portion of the TFT) is connected to a bridge electrode 121 at a drain contact portion (also referred to as a first contact portion or a first contact hole) CH1, and the bridge electrode 121 extends to a position where it overlaps with the gate line GL (see FIG. 4). The overlap of the source line SL serves as a source electrode of the TFT, and the overlap of the gate line GL serves as a gate electrode of the TFT (not shown).

[0038] As shown in FIG. 4, a color filter layer CF is disposed above the gate line GL, the source line SL, and the bridge electrode 121 (however, the supporting substrate 100 side is downward). A second contact portion (also called a second contact hole) CH2 is provided in the color filter layer CF so as to overlap the gate line GL, and the bridge electrode 121 and the first electrode 122 are connected through the second contact hole CH2. This first electrode 122 becomes a pixel electrode. That is, the TFT 110 and the pixel electrode 122 are electrically connected through the second contact hole CH2. An insulating film 130 is formed on the pixel electrode 122, and a second electrode 123 is formed on the insulating film 130. This second electrode 123 becomes a common electrode (also called a common electrode). An insulating film or a planarizing film is provided between each layer or electrode as necessary (reference numeral 130 in the figure).

[0039] The pixel electrodes 122 are disposed in each of the pixels Px, and the common electrode 123 is disposed so as to face the pixel electrodes 122 disposed in each pixel Px. Each of the common electrodes 123 is a planar electrode having gaps such as dots or slits in the pixel portion. In addition, the bridge electrode 121, the pixel electrodes 122, and the common electrode 123 are preferably transparent electrodes. The transparent electrodes are preferably formed of transparent conductive materials such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), tin oxide (SnO), or alloys thereof.

[0040] The color filter layer CF is disposed in each pixel Px of the first substrate 10. In FIG. 3 and FIG. 4, the first pixel Px1 has a red color filter layer CF (R), and the second pixel Px2 adjacent to the first pixel Px1 has a green color filter layer CF (G). A first light-shielding layer BMa is provided between the two adjacent color filter layers CF (see FIG. 4). "The first light-shielding layer BMa is provided between the two adjacent color filter layers CF" means that the first light-shielding layer BMa is disposed so as to overlap the boundary between the two adjacent color filter layers CF. When viewed in a plan view, the first light-shielding layer BMa is visually recognized as being disposed between the two adjacent color filter layers CF. In FIG. 4, the first light-shielding layer BMa is disposed so as to overlap both of the two adjacent color filter layers CF, and therefore overlaps the boundary between the color filter layers CF.

[0041] The second substrate 30 is disposed opposite to the first substrate 10, and includes a support substrate 300 and a second light-shielding layer BMb. For surface planarization, it is preferable to further include a planarization film 330 (see FIG. 4). The support substrate 300 is preferably transparent and insulating. Examples of the support substrate 300 include a glass substrate and a plastic substrate.

[0042] The first light-shielding layer BMa of the first substrate 10 and the second light-shielding layer BMb of the second substrate 30 are disposed in directions substantially perpendicular to each other. The first light-shielding layer BMa shields the seams between adjacent colors, and also sufficiently suppresses the mixing of adjacent colors when viewed obliquely. That is, for example, when a light source is disposed on the opposite side of the first substrate 10 from the liquid crystal layer 20, as shown in FIG. 5, the light 1LB obliquely incident from the light source near the boundary between the two color filter layers CF is shielded by the first light-shielding layer BMa. Therefore, the mixing of adjacent colors is suppressed. The seams between adjacent colors are also shielded, improving the display quality. FIG. 5 is a diagram for explaining the mechanism of light shielding. On the other hand, by providing the second light-shielding layer BMb on the second substrate 30 side, the shape of the electrodes disposed on the first substrate 10 can be designed without being influenced by the shape of the second light-shielding layer BMb, so that it is possible to adopt an electrode shape with excellent transmittance. It is also possible to suppress reflection. In this way, by providing a light-shielding layer on each of the first substrate 10 and the second substrate 30 that are disposed opposite each other with the liquid crystal layer 20 interposed therebetween and by arranging the light-shielding layers in directions that are substantially perpendicular to each other, it is possible to suppress the occurrence of oblique color mixing and at the same time increase the transmittance, thereby suitably realizing a high-definition liquid crystal panel with excellent display quality.

[0043] In particular, it is preferable that one of the first light-shielding layer BMa and the second light-shielding layer BMb is arranged along the column direction, and the other is arranged along the row direction. In particular, from the viewpoint of further exerting light-shielding properties, it is more preferable that the first light-shielding layer BMa overlaps one of the gate wiring GL or the source wiring SL, and the second light-shielding layer BMb overlaps the other. It is even more preferable that the first light-shielding layer BMa overlaps the source wiring SL, and the second light-shielding layer BMb overlaps the gate wiring GL. Each light-shielding layer may be separated in a dotted line shape in one row direction or one column direction, or may be arranged as one connection.

[0044] In this embodiment, the first light-shielding layer BMa overlaps the source line SL, and the second light-shielding layer BMb overlaps the gate line GL (see FIG. 4). The second light-shielding layer BMb also overlaps the second contact hole CH2. Therefore, for example, when a light source is disposed on the opposite side of the first substrate 10 from the liquid crystal layer 20, as shown in FIG. 5, the light 1LA transmitted from the light source through the periphery of the second contact hole CH2 is blocked by the second light-shielding layer BMb. Normally, the light transmitted through the periphery of the second contact hole CH2 may lead to a decrease in color purity, but in this embodiment, the transmitted light 1LA is blocked by the second light-shielding layer BMb, so that the decrease in color purity is sufficiently suppressed.

[0045] Each light-shielding layer is preferably formed using a material that is usually used as a material for a black matrix (also referred to as BM). Specifically, a resin material or a metal material is preferable. The resin material is preferably a black photosensitive resin material. In addition, the metal material may be a single metal material containing one type of metal or a composite metal material containing two or more types of metals. Specifically, titanium (Ti), molybdenum (Mo), aluminum (Al), molybdenum tungsten (MoW), etc. are preferable. In addition, when the light-shielding layer is formed of a metal material, it is preferable to perform a blackening treatment on the surface of the light-shielding layer from the viewpoint of reflection characteristics. For example, a surface blackening treatment by multilayer film interference can be mentioned (details will be described later in embodiment 3).

[0046] From the viewpoint of blocking transmitted light, the thickness of each light-shielding layer is preferably 10 nm or more, more preferably 50 nm or more. From the viewpoint of reducing the film surface step, the upper limit is preferably 1000 nm or less, more preferably 300 nm or less. The thickness here means the total thickness when the light-shielding layer has a multi-layer structure.

[0047] In this embodiment, the first light-shielding layer BMa is formed so as to overlap the source wiring SL, and at the same time, the first light-shielding layer BMa is formed so as to sandwich the seam between adjacent colors (i.e., the boundary between adjacent color filter layers CF) together with the source wiring SL. This more sufficiently suppresses the occurrence of oblique color mixing. In order to achieve such an arrangement, the first light-shielding layer BMa is preferably formed in an upper layer than the color filter layer CF (however, the liquid crystal layer 20 side is considered to be the upper direction). In addition, from the viewpoint of suppressing the surface step on the liquid crystal layer 20 side of the first substrate 10, it is preferable to form the first light-shielding layer BMa from a metal material rather than a resin material that is likely to become a thick film. That is, the first light-shielding layer BMa is preferably formed from a metal material.

[0048] The first light-shielding layer BMa is preferably disposed above or below the common electrode 123 so as to be in direct contact with the common electrode 123. In this embodiment, the surface of the first light-shielding layer BMa opposite the liquid crystal layer 20 is in contact with the common electrode 123 (see FIG. 4). By disposing the first light-shielding layer BMa so as to be in contact with the common electrode 123, liquid crystal alignment disturbance caused by steps is further suppressed. In particular, when the first light-shielding layer BMa is made of a metal material, disposing the first light-shielding layer BMa in contact with the common electrode 123 further suppresses liquid crystal alignment disturbance caused by steps because the metal material has electrical conductivity.

[0049] The width W1 of the first light-shielding layer BMa is not particularly limited as long as it is a width that can shield the seam between adjacent colors and suppress the mixing of adjacent colors when viewed from an oblique angle. For example, a width of 2 μm or more is preferable because it can fully exert such effects. There is no particular upper limit, but it is preferable that the width is, for example, 10 μm or less. In this specification, "width" means the width in a planar view.

[0050] In this embodiment, the second light-shielding layer BMb is formed on the second substrate 30 side so as to overlap the gate line GL and the second contact hole CH2. The second light-shielding layer BMb is preferably formed of a resin material or a metal material, and is preferably formed of a resin material. When the second light-shielding layer BMb is formed of a resin material, it becomes easier to form a pattern of electrodes for controlling the liquid crystal alignment on the first substrate 10, and it becomes easier to adjust the width W1 of the second light-shielding layer BMb. Therefore, it is particularly preferable that the first light-shielding layer BMa is formed of a metal material and the second light-shielding layer is formed of a resin material.

[0051] The width W2 of the second light-shielding layer BMb is preferably equal to or less than the width of the wiring that overlaps the second light-shielding layer BMb among the gate wiring GL or the source wiring SL. That is, it is preferable to arrange the second light-shielding layer BMb inside the wiring in a plan view. This sufficiently suppresses the decrease in the aperture ratio, so that high definition is further realized. In this embodiment, since the second light-shielding layer BMb overlaps the gate wiring GL, it is preferable that W2 is equal to or less than the width of the gate wiring GL. Although the specific size varies depending on the pixel pitch, for example, in the case of a high-definition liquid crystal panel with a pixel pitch of less than 10 μm, W2 is preferably equal to or less than 5 μm. More preferably, it is equal to or less than 4 μm. It is also preferable that W2 is equal to or more than the width of the second contact hole CH2 so that the second contact hole CH2 can be shielded from light, and specifically, W2 is preferably equal to or more than 1 μm.

[0052] In general, in conventional liquid crystal panels with a pixel pitch of 20 μm or more, the row direction BM and the column direction BM are formed in a lattice shape. Usually, the width of the column direction BM is 4 μm or more, and the width of the row direction BM is 10 μm or more, and the metal wiring of the TFT array substrate is arranged inside these BMs in a plan view. That is, the width of the BM is generally made wider than the metal wiring so that the metal wiring is not exposed. This is because if the metal wiring is exposed at the opening, light scattering at the metal edge becomes a factor that reduces the contrast. However, in high-definition liquid crystal panels with a pixel pitch of less than 10 μm, if the width of the BM is made wider than the metal wiring as in the conventional case, the effect of reducing the aperture ratio becomes large, and processing of the BM becomes difficult. In addition, the corners of the openings of the lattice-shaped BM are rounded at the intersections, which may impair the transmission aperture ratio. Therefore, it is not preferable to apply a lattice-shaped BM to ultra-high definition models in which it is difficult to ensure the aperture ratio. If only the transmission quality is to be ensured, the first light-shielding layer BMa (BMa overlapping the source wiring SL in this embodiment) is sufficient, but in order to further ensure the reflection quality, it is important to apply the second light-shielding layer BMb. The second light-shielding layer BMb is preferably disposed on the inner side of the metal wiring, and this can sufficiently prevent the transmittance from decreasing due to the second light-shielding layer BMb.

[0053] An alignment film (not shown) is disposed on each of the surfaces of the first substrate 10 and the second substrate 30 that contact the liquid crystal layer 20 as required. The alignment film is preferably a horizontal alignment film. That is, the first substrate 10 is provided with a first horizontal alignment film, one surface of which is disposed in contact with the liquid crystal layer 20 and the other surface is disposed in contact with the first light-shielding layer BMa, and the second substrate 30 is preferably provided with a second horizontal alignment film that contacts the liquid crystal layer 20.

[0054] As described above, the first substrate 10 and the second substrate 30 are provided with an insulating film or a planarizing film as necessary (reference numerals 130 and 330 in the figure). The insulating film also includes a dielectric film. Examples of the insulating film and the planarizing film include an organic insulating film obtained by using an organic insulating material, an inorganic insulating film obtained by using an inorganic insulating material, and a laminate of an organic insulating film and an inorganic insulating film. Examples of the organic insulating film include an organic film (relative dielectric constant ε=2 to 5) such as an acrylic resin, a polyimide resin, a novolac resin, or a laminate thereof, and the thickness of the organic insulating film is preferably, for example, 1 μm or more and 4 μm or less. From the viewpoint of preventing stray light, it is preferable that the thickness of the organic insulating film is as thin as possible. Examples of the inorganic insulating film include an inorganic film (relative dielectric constant ε=3.5 to 8) such as silicon nitride (SiNx), silicon oxide (SiO2), or a laminate thereof, and the thickness of the inorganic insulating film is preferably, for example, 150 Å or more and 7000 Å or less. The organic insulating film and the inorganic insulating film are appropriately selected and used.

[0055] The liquid crystal panel 1X can perform display by applying a voltage between the pixel electrodes and the common electrode and applying a horizontal electric field (including a fringe electric field) or a vertical electric field to the liquid crystal layer. Examples of the horizontal electric field method include the FFS (Fringe Field Switching) mode and the IPS (In Plane Switching) mode, in which the liquid crystal molecules in the liquid crystal layer are aligned parallel to the substrate surface when no voltage is applied. Examples of the vertical electric field method include the vertical alignment (VA), in which the liquid crystal molecules in the liquid crystal layer are aligned perpendicular to the substrate surface when no voltage is applied.

[0056] The liquid crystal panel 1X may be a low-definition liquid crystal panel or a high-definition liquid crystal panel. However, as described above, oblique color mixing is a particularly prominent problem in high-definition liquid crystal panels. However, the liquid crystal panel of the present invention can suppress the occurrence of oblique color mixing even in the case of a high-definition liquid crystal panel, and can exhibit the effect of excellent transmittance. Therefore, it is preferable that the liquid crystal panel of this embodiment is a high-definition liquid crystal panel.

[0057] There is no particular limitation on the method for manufacturing the liquid crystal panel 1X. For example, the first substrate 10 and the second substrate 30 are bonded together, if necessary via a columnar spacer, and the gap is filled with a liquid crystal material to form the liquid crystal layer 20, and then the resulting structure is cut to manufacture the liquid crystal panel 1X.

[0058] Next, a liquid crystal display device 1 including the liquid crystal panel 1X of this embodiment will be described as an example. Fig. 6 is a schematic cross-sectional view of a liquid crystal display device of this embodiment. As shown in Fig. 6, a liquid crystal display device 1 of this embodiment includes a liquid crystal panel 1X of this embodiment and a backlight BL as a light source.

[0059] The backlight BL is not particularly limited as long as it irradiates light, and may be a direct type, an edge type, or any other type. Specifically, for example, the backlight BL is preferably provided with a light source unit including a light guide plate and a light source, a reflection sheet, and a diffusion sheet. For example, a light emitting diode (LED) can be used as the light source.

[0060] The liquid crystal display device 1 is composed of a plurality of components, such as a polarizing plate, an external circuit such as a TCP (tape carrier package) or a PCB (printed circuit board), an optical film such as a viewing angle widening film or a brightness enhancing film, and a bezel (frame), in addition to the above-mentioned components. Some components may be incorporated into other components. There are no particular limitations on the components other than those already described, and those that are commonly used in the field of liquid crystal display devices can be used, so their description will be omitted.

[0061] 7 is a perspective schematic diagram showing an example of the appearance when the liquid crystal display device 1 according to this embodiment is used as a head mounted display (HMD), that is, an example of the appearance of an HMD equipped with the liquid crystal panel of this embodiment. As shown in FIG. 7, the head mounted display 1000 is a display device that includes the liquid crystal panel 1X of this embodiment for displaying images, an optical element 2, and a backlight (not shown), and can be worn on the head of a user. The optical element 2 is, for example, a lens. Although a binocular HMD is illustrated in this figure, a monocular HMD may also be used.

[0062] The display method of the HMD is not particularly limited, and various display modes such as a horizontal alignment mode and a vertical alignment mode are preferably adopted. For example, as an HMD using a horizontal alignment mode, it is preferable to adopt a technology that has a characteristic opening shape of the electrode used to form the fringe electric field, as described in JP 2019-113584 A.

[0063] (Embodiment 2) In this embodiment, the features unique to this embodiment will be mainly described, and description of the contents overlapping with the above-mentioned embodiment 1 will be omitted. This embodiment differs from embodiment 1 mainly in that columnar spacers PS are arranged.

[0064] Fig. 8 is a schematic plan view showing an enlarged portion of a liquid crystal panel according to an example of this embodiment, and Fig. 9 is a cross-sectional view taken along line AB in Fig. 8 (cross-sectional view taken along line AB).

[0065] 8 and 9, at least one of the pixels Px (Px2(G) in FIG. 8) includes a columnar spacer PS. The columnar spacer is also called a photospacer, and is arranged to facilitate control of the thickness (also called a cell gap or cell thickness) of the liquid crystal layer 20. The photospacer PS is arranged between the first substrate 10 and the second substrate 30 so as to overlap the second light-shielding layer BMb (see FIG. 9).

[0066] The photospacer PS may protrude from the second light-shielding layer BMb in plan view. That is, the width W3 of the photospacer PS may be larger than the width W2 of the second light-shielding layer BMb. As described above, W2 is preferably 5 μm or less, and W3 is preferably 5 μm or more in order to sufficiently maintain the thickness of the liquid crystal layer 20 against, for example, external pressure. In this case, the photospacer PS will almost certainly protrude from the second light-shielding layer BMb in plan view. The width W3 of the photospacer PS means the diameter of the photospacer when the photospacer has a substantially circular shape in plan view.

[0067] From the viewpoint of preventing a decrease in contrast, it is preferable to shield the periphery of the photospacer PS from light. Specifically, it is preferable to expand the width of the wiring on which the photospacer PS overlaps on the first substrate 10, or to arrange a metal layer 140 other than the wiring at a position where it overlaps the photospacer PS. In this embodiment, the metal layer 140 is arranged on the first substrate 10 at a position where it overlaps the photospacer PS (see FIG. 9). The metal layer 140 is sized to include the photospacer PS in a plan view in order to shield the periphery of the photospacer PS from light.

[0068] The metal layer 140 means a layer made of metal other than wiring (e.g., source wiring SL and gate wiring GL). Examples of materials for forming the metal layer 140 include a single metal material containing one type of metal and a composite metal material containing two or more types of metal. Specifically, for example, molybdenum (Mo), molybdenum tungsten (MoW), etc. are suitable.

[0069] In conventional liquid crystal panels, it is common to arrange the BM around the photospacer and to adopt a configuration in which the photospacer does not protrude from the BM. This is because the orientation of the liquid crystal molecules around the photospacer is disturbed from the desired orientation direction, which causes a decrease in contrast. The photospacer is usually formed with a diameter of 6 μm or more in order to maintain the thickness of the liquid crystal layer against external pressure. In this case, if the width of the BM arranged around the photospacer is 5 μm or less, the photospacer protrudes from the BM in a planar view. In addition, it is very difficult to control the processing to locally widen the BM only around the photospacer. However, in this embodiment, even if the photospacer PS is arranged to protrude from the second light-shielding layer BMb in a planar view, a decrease in contrast can be prevented.

[0070] (Embodiment 3) In this embodiment, features unique to this embodiment will be mainly described, and descriptions of contents overlapping with the above-mentioned embodiment 1 will be omitted. This embodiment is substantially the same as embodiment 1, except that the configuration of the first light-shielding layer BMa is different.

[0071] FIG. 10 is a cross-sectional view (cross-sectional view taken along line AB) in FIG. 3. FIG. 11 is an enlarged view of the inside of an ellipse indicated by a broken line in FIG. 10. As shown in FIG. 11, the first light-shielding layer BMa is disposed on the common electrode 123 in a cross-sectional view (with the liquid crystal layer 20 side facing upward), and has a multi-layer structure in which two or more metal layers are disposed with an insulating layer interposed therebetween. Specifically, the first light-shielding layer BMa has a four-layer structure including a first metal layer 41, a first insulating layer 51, a second metal layer 42, and a second insulating layer 52 in this order. The first metal layer 41 is disposed on the common electrode 123, and the second metal layer 42 is disposed thereon with the first insulating layer 51 interposed therebetween. The second metal layer 42 is further laminated with a second insulating layer 52.

[0072] Of the metal layers constituting the first light-shielding layer BMa, the first metal layer 41 located closest to the support substrate 100 has a thickness which differs depending on the type of metal, but is preferably, for example, 10 to 100 nm.

[0073] A first insulating layer 51 is disposed on the first metal layer 41. The optimum thickness of the first insulating layer 51 varies depending on the film types of the first metal layer 41 and the upper layer described later, and the refractive index of the insulating layer itself, but is most preferably 50 to 60 nm.

[0074] A second metal layer 42 is disposed on the first insulating layer 51. The reflectance of the multilayer interference varies depending on the balance between the transmittance and reflectance of this layer. The film thickness of the second metal layer 42 for minimizing the reflectance varies depending on the type of metal, but is most preferably 3 to 5 nm.

[0075] A second insulating layer 52 is disposed on the second metal layer 42. This second insulating layer 52 is provided for the purpose of protecting the second metal layer 42 and maintaining the reflective properties. In consideration of the liquid crystal alignment, the thinner the film thickness, the more preferable, and a thickness of 20 to 30 nm is most preferable.

[0076] Examples of materials for forming the metal layers 41 and 42 include a single metal material containing one type of metal and a composite metal material containing two or more types of metals. Specifically, for example, molybdenum (Mo), molybdenum tungsten (MoW), titanium (Ti), etc. are suitable.

[0077] The insulating layers 51 and 52 are preferably transparent and are preferably inorganic insulating films obtained by using inorganic insulating materials. Examples of inorganic insulating films include inorganic films (relative dielectric constant ε=5 to 7) such as silicon nitride (SiNx) and silicon oxide (SiO2), and laminated films thereof. Among them, SiN is most preferable from the viewpoint that the higher the refractive index, the thinner the film can be made.

[0078] In this embodiment, the first light-shielding layer BMa has the above-mentioned multilayer structure, thereby achieving low reflection due to multilayer film interference. For example, when a light source is disposed on the opposite side of the first substrate 10 from the liquid crystal layer 20, as shown in FIG. 12, transmitted light 1L from the light source is shielded by the first metal layer 41, while reflected light 3L (i.e., light due to metal reflection) by the first metal layer 41 is offset. In this way, the first light-shielding layer BMa of this embodiment can achieve both shielding of transmitted light and low reflection, thereby further improving display quality. FIG. 12 is a diagram for explaining the light-shielding mechanism.

[0079] (Modification 1 of the third embodiment) The configuration for achieving low reflection by multilayer film interference is not limited to that of the third embodiment. For example, in the first light-shielding layer BMa of the third embodiment, the first metal layer 41 may be disposed under the common electrode 123, and the second metal layer 42 may be disposed over the common electrode 123 (cross-sectional view). In this case, a multilayer film interference blackening film is obtained in which the common electrode 123 plays the role of the first insulating layer 51. In this configuration, the first insulating layer 51 is not required. An example of the layer structure of the first light-shielding layer BMa in this example is shown in FIG. 13A. FIG. 13A is an enlarged view (schematic cross-sectional view) of the inside of the ellipse indicated by the dashed line in FIG. 10.

[0080] (Modification 2 of the third embodiment) In the third embodiment, the first light-shielding layer BMa may be disposed under the common electrode 123 (cross-sectional view). That is, the common electrode 123 may be located above the second insulating layer 52 of the first light-shielding layer BMa of the third embodiment. This configuration also allows low reflection due to multilayer film interference. In this case, the second insulating layer 52 may not be provided. That is, the second insulating layer 52 may be deleted. An example of the layer structure of the first light-shielding layer BMa in this example is shown in FIG. 13B. FIG. 13B is an enlarged view (schematic cross-sectional view) of the inside of the ellipse indicated by the dashed line in FIG. 10.

[0081] (Modification 3 of embodiment 3) In the third embodiment, a second common electrode 124 may be further disposed on the first light-shielding layer BMa, and the first light-shielding layer BMa may be sandwiched between the common electrode 123 and the second common electrode 124 (cross-sectional view). This configuration also allows for low reflection due to multilayer film interference. In this case, the second insulating layer 52 may not be provided. That is, the second insulating layer 52 may be omitted. An example of the layer structure of the first light-shielding layer BMa in this example is shown in FIG. 13C. FIG. 13C is an enlarged view (schematic cross-sectional view) of the inside of the ellipse indicated by the dashed line in FIG. 10.

[0082] (Embodiment 4) In this embodiment, features unique to this embodiment will be mainly described, and descriptions of contents overlapping with the above-mentioned embodiment 1 will be omitted. This embodiment is substantially the same as embodiment 1, except that the second substrate 30 has a third light-shielding layer at a position overlapping the first light-shielding layer BMa. That is, the second substrate 30 has a third light-shielding layer BMb2 in addition to the second light-shielding layer BMb (for convenience, referred to as the second light-shielding layer BMb1).

[0083] Fig. 14 is a cross-sectional view (cross-sectional view taken along line AB) in Fig. 3. The third light-shielding layer BMb2 is disposed on the second substrate 30 at a position overlapping the first light-shielding layer BMa.

[0084] In the present embodiment, the first light-shielding layer BMa is preferably made of a metal material in order to suppress surface steps on the liquid crystal layer 20 side of the first substrate 10. On the other hand, the third light-shielding layer BMb2 is preferably made of a resin material in order to suppress metal reflection caused by the first light-shielding layer BMa.

[0085] The width of the third light-shielding layer BMb2 is preferably equal to or smaller than the width W1 of the first light-shielding layer BMa, which makes it possible to sufficiently suppress metal reflection caused by the first light-shielding layer BMa made of a metallic material without deteriorating the transmission characteristics.

[0086] Here, from the viewpoint of suppressing metal reflection without reducing the transmittance, it is ideal that the width of the first light-shielding layer BMa and the width of the third light-shielding layer BMb2 are equal and there is no misalignment when bonding the first substrate 10 and the second substrate 30. However, since misalignment may occur in reality, it is preferable to give priority to the transmission aperture ratio and design the width of the third light-shielding layer BMb2 to be 0 to 0.5 μm inward on one side than the width of the first light-shielding layer BMa. That is, it is preferable that p1 and p2 shown in FIG. 15 are 0 to 0.5 μm. The sum of p1 and p2 (i.e., p1 + p2) corresponds to the value obtained by subtracting the width of the third light-shielding layer BMb2 from the width of the first light-shielding layer BMa. Each width referred to here is also a width in a plan view, and corresponds to the length in the left-right direction in FIG. 15, which is a cross-sectional view. FIG. 15 is a schematic cross-sectional view focusing on the third light-shielding layer BMb2 and the first light-shielding layer BMa in FIG. 14, and is a view for explaining the relationship between the widths of the light-shielding layers.

[0087] In this embodiment, as shown in FIG. 16, for example, reflected light 3L by the first light-shielding layer BMa (i.e., light by metal reflection) is blocked (shielded) by the third light-shielding layer BMb2 provided at a position facing the liquid crystal layer 20. On the other hand, for example, when a light source is disposed on the opposite side of the first substrate 10 from the liquid crystal layer 20, transmitted light 1L from the light source is transmitted without being blocked by the third light-shielding layer BMb2. Therefore, it is possible to realize a liquid crystal panel 1X in which reflection of the first light-shielding layer BMa on the first substrate 10 side is reduced as much as possible without deteriorating the transmission characteristics. FIG. 16 is a diagram for explaining the light-shielding mechanism.

[0088] Although the embodiments of the present invention have been described above, the individual matters described above can all be applied to the present invention as a whole.

[0089] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these examples.

[0090] Example 1 The liquid crystal panel of this example corresponds to the liquid crystal panel of the above-mentioned first embodiment (see FIGS. 1 to 5). When the liquid crystal panel 1X of this example is manufactured, the first light-shielding layer BMa is formed so as to overlap with a plurality of source lines SL and to sandwich the seams between two adjacent colors (i.e., the boundaries between adjacent color filter layers CF) together with the source lines SL. The first light-shielding layer BMa is formed of a metal material and is formed so as to be in direct contact with the common electrode 123. On the other hand, the second substrate 30 is formed with a resin material or a metal material so as to two-dimensionally overlap with the gate lines GL and the second contact holes CH2. After that, a planarizing film 330 is provided to planarize the surface on the liquid crystal layer 20 side, and then the first substrate 10 is bonded to the first substrate 10 via a photospacer PS if necessary, and the gap is filled with a liquid crystal material to obtain the liquid crystal panel 1X. According to the liquid crystal panel 1X of this example, even if the width W1 of the first light-shielding layer BMa is about 3 μm, the seams between adjacent colors can be shielded and the mixing of adjacent colors when viewed obliquely can be sufficiently suppressed. In addition, the second light-shielding layer BMb can sufficiently block the transmitted light around the second contact hole CH2. Therefore, it is possible to realize an ultra-high definition liquid crystal panel with high transmittance and high color purity without deterioration in quality due to misalignment of the laminate.

[0091] Example 2 The liquid crystal panel of this example corresponds to the liquid crystal panel of the second embodiment (see FIGS. 1, 2, 8 and 9). The liquid crystal panel 1X of this example is substantially the same as the liquid crystal panel of Example 1, except that the liquid crystal panel 1X of this example has a photospacer PS between the first substrate 10 and the second substrate 30, overlapping the second light-shielding layer BMb and having a width W3 larger than the width W2 of the second light-shielding layer BMb, and the first substrate 10 further has a metal layer 140 at a position overlapping the photospacer PS. The liquid crystal panel 1X of this example can also achieve the same effects as those of Example 1.

[0092] Example 3 The liquid crystal panel of this example corresponds to the liquid crystal panel of the third embodiment (see FIGS. 1 to 3 and 10 to 12). In the first embodiment, an example in which the first light-shielding layer BMa is made of a metal material has been described. However, metal materials have high reflectivity. Therefore, in order to further improve the display quality of the liquid crystal panel, in this embodiment, the first light-shielding layer BMa is made to have a multilayer structure including a metal layer, thereby achieving low reflectivity through multilayer film interference. In this embodiment, the first light-shielding layer BMa can achieve both light shielding of transmitted light and low reflectivity, so that the liquid crystal panel 1X of this embodiment has a better display quality than the liquid crystal panel of the first embodiment.

[0093] Example 4 The liquid crystal panel of this example corresponds to the liquid crystal panel of the above-mentioned fourth embodiment (see FIGS. 1 to 3 and 14 to 16). In the third embodiment, the first light-shielding layer BMa is made to have a multi-layer structure including a metal layer, and the reflectance of the metal itself is reduced by multi-layer film interference. However, in this embodiment, a third light-shielding layer BMb2 is introduced on the opposing substrate (second substrate) 30 side at a position two-dimensionally overlapping with the first light-shielding layer BMa, thereby achieving low reflection. The liquid crystal panel 1X of this embodiment can reduce the reflection of the first light-shielding layer BMa on the first substrate 10 side as much as possible without degrading the transmission characteristics, and therefore has a better display quality than the liquid crystal panel of the first embodiment.

[0094] The above-described aspects of the present invention may be combined as appropriate without departing from the gist of the present invention. [Explanation of symbols]

[0095] 1:LCD display device 1L, 1LA, 1LB, 2L, 3L: Light 1R, 1X: LCD panel 10, 30: Substrate 20: Liquid crystal layer 41, 42: Metal layer 51, 52: Insulating layer 100, 300: Support substrate 110: Switching element 121, 122, 123, 124: Electrode 130, 330: insulating film or planarizing film 140: Metal layer AA:Display section BL: Backlight BM, BMa, BMb, BMb1, BMb2: Light shielding layer CF: Color filter layer CH1, CH2: Contact hole GD: Gate driver GL: Gate wiring PS: Pillar spacer (photo spacer) Px, Px1, Px2: pixels SL: Source wiring

Claims

1. a first substrate having a plurality of pixels arranged in a matrix; a second substrate facing the first substrate; a liquid crystal layer located between the first substrate and the second substrate; A liquid crystal panel comprising: the first substrate includes a support substrate, a plurality of source wirings, a plurality of gate wirings substantially perpendicular to the source wirings, and a plurality of switching elements disposed at intersections between the source wirings and the gate wirings; Each pixel is defined by two adjacent gate lines and two adjacent source lines, Each of the pixels has a pixel electrode and a color filter layer; a first light-shielding layer is provided between two adjacent color filter layers; the second substrate comprises a support substrate and a second light-shielding layer; The first light-shielding layer and the second light-shielding layer are disposed in directions substantially perpendicular to each other. A liquid crystal panel characterized by the above.

2. The first light-shielding layer overlaps one of the gate wiring and the source wiring, and the second light-shielding layer overlaps the other one.

2. The liquid crystal panel according to claim 1 .

3. The first light-shielding layer overlaps the source line, and the second light-shielding layer overlaps the gate line.

2. The liquid crystal panel according to claim 1 .

4. the first light-shielding layer is made of a metal material; The second light-shielding layer is formed of a resin material.

2. The liquid crystal panel according to claim 1 .

5. The first light-shielding layer has a multilayer structure in which two or more metal layers are arranged with an insulating layer interposed therebetween.

5. The liquid crystal panel according to claim 4.

6. The width of the second light-shielding layer is equal to or smaller than the width of the gate line.

4. The liquid crystal panel according to claim 3.

7. The first substrate further includes a common electrode.

2. The liquid crystal panel according to claim 1 .

8. The first light-shielding layer is made of a metal material and is disposed so as to be in contact with the common electrode.

8. The liquid crystal panel according to claim 7.

9. The first substrate further comprises a first horizontal alignment film, the first horizontal alignment film is disposed so that one surface thereof is in contact with the liquid crystal layer and the other surface thereof is in contact with the first light-shielding layer; The second substrate further includes a second horizontal alignment film in contact with the liquid crystal layer.

2. The liquid crystal panel according to claim 1 .

10. Each of the pixels further includes a contact hole provided in the color filter layer, the switching element and the pixel electrode are electrically connected via the contact hole; The second light-shielding layer overlaps the contact hole.

2. The liquid crystal panel according to claim 1 .

11. At least one of the plurality of pixels further includes a columnar spacer, the columnar spacer overlaps the second light-shielding layer, The width of the columnar spacer is greater than the width of the second light-shielding layer.

2. The liquid crystal panel according to claim 1 .

12. The second substrate further includes a third light-shielding layer at a position overlapping the first light-shielding layer.

2. The liquid crystal panel according to claim 1 .

13. the first light-shielding layer is made of a metal material; The third light-shielding layer is made of a resin material.

13. The liquid crystal panel according to claim 12.

14. The width of the third light-shielding layer is equal to or smaller than the width of the first light-shielding layer.

13. The liquid crystal panel according to claim 12.

15. The liquid crystal panel according to any one of claims 1 to 14 is provided. A liquid crystal display device comprising:

16. The liquid crystal panel according to any one of claims 1 to 14 is provided. A head mounted display device.

Images