Display panel and display device

Abstract

The present disclosure provides a display panel, comprising: a first panel and a second panel arranged opposite to the first panel; the first panel comprises: gate lines extending along a first direction and data lines extending along a second direction, the gate lines and the data lines are arranged to cross to define pixel regions; the second panel comprises: a plurality of support column period units arranged in an array along the first direction and the second direction, the support column period unit comprises a plurality of support columns, at least part of the support columns satisfy: a line connecting the support column and a nearest support column to the support column extends along a third direction, an included angle between the third direction and the first direction is not equal to 0°. The present disclosure also provides a display device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display, in particular to a display panel and a display device. BACKGROUND

[0002] With the development of science and technology, people have higher requirements for the display effect of liquid crystal display (LCD). At present, some high-end LCDs use a structure of two layers of liquid crystal panels stacked to realize the privacy function of the display device. At this time, the display device can be switched between the privacy mode and the sharing mode. SUMMARY

[0003] In a first aspect, the embodiments of the present disclosure provide a display panel, comprising: a first panel and a second panel arranged opposite to the first panel;

[0004] The first panel comprises gate lines extending in a first direction and data lines extending in a second direction, the gate lines and the data lines are arranged to cross to define pixel regions;

[0005] The second panel comprises a plurality of support column periodic units arranged in an array along the first direction and the second direction, the support column periodic unit comprises a plurality of support columns, at least part of the support columns satisfy that a line connecting the support column and the nearest support column to the support column extends in a third direction, and an included angle between the third direction and the first direction is not equal to 0°.

[0006] In some embodiments, the included angle between the third direction and the first direction is greater than or equal to 7°.

[0007] In some embodiments, the first panel further comprises a black matrix, the black matrix comprises a plurality of first light-shielding strips extending in the first direction and a plurality of second light-shielding strips extending in the second direction.

[0008] The first light-shielding strips cover the regions where the gate lines are located, and the second light-shielding strips cover the regions where the data lines are located.

[0009] The width of the black matrix along the extension direction of the gate lines at the position intersecting with the data lines is greater than the width of the black matrix between two adjacent pixel regions in the extension direction of the data lines.

[0010] In some embodiments, the plurality of support columns in the second panel constitute a plurality of support column groups, each support column group comprises a plurality of support columns arranged in the third direction, and each support column in the support column group satisfies that a line connecting the support column and the nearest support column to the support column extends in the third direction.

[0011] In some embodiments, the plurality of support columns in the support column periodic unit comprises: at least one main support column and a plurality of auxiliary support columns; and a ratio of a number of the main support columns to a number of the auxiliary support columns in the support column periodic unit is: 1:50-1:10.

[0012] In some embodiments, the display panel is divided into a plurality of periodic regions arranged in an array along the first direction and the second direction, the periodic regions correspond one-to-one to the support column periodic units, the support column periodic units are located in the corresponding periodic regions, and the periodic regions are rectangular in shape.

[0013] The support column periodic unit comprises at least 4 main support columns, and 4 main support columns of the at least 4 main support columns are respectively located at 4 vertices of the corresponding periodic region.

[0014] The 4 periodic regions adjacent to each other and arranged in a 2x2 arrangement share a same main support column at a common vertex.

[0015] In some embodiments, a distance between two main support columns adjacent in the first direction is greater than 500 microns.

[0016] A distance between two main support columns adjacent in the second direction is greater than 1000 microns.

[0017] In some embodiments, other support columns in the support column periodic unit, except for the 4 main support columns located at the 4 vertices of the corresponding periodic region, are divided into a plurality of support column subgroups.

[0018] Each support column subgroup comprises a plurality of support columns arranged along the third direction, and each support column in the support column subgroup satisfies: a line connecting the support column and a support column closest to the support column extends along the third direction.

[0019] In some embodiments, other support columns in the support column periodic unit, except for the 4 main support columns located at the 4 vertices of the corresponding periodic region, comprise: 1 main support column and 77 auxiliary support columns.

[0020] In some embodiments, the 4 main support columns located at the 4 vertices of the corresponding periodic region in the support column periodic unit are respectively: a first main support column, a second main support column adjacent to the first main support column in the first direction, a third main support column adjacent to the second main support column in the second direction, and a fourth main support column adjacent to the third main support column in the first direction.

[0021] The other support columns in the support column periodic unit, except the four main support columns located at the four vertices of the corresponding periodic region, are divided into six support column subgroups, which are a first support column subgroup, a second support column subgroup, a third support column subgroup, a fourth support column subgroup, a fifth support column subgroup, and a sixth support column subgroup;

[0022] The line determined by any two support columns in the first support column subgroup passes through the first half of the line segment determined by the first main support column and the second main support column, which is close to the second main support column;

[0023] The line determined by any two support columns in the second support column subgroup passes through the first half of the line segment determined by the first main support column and the second main support column, which is close to the first main support column;

[0024] The line determined by any two support columns in the third support column subgroup passes through the first main support column;

[0025] The line determined by any two support columns in the fourth support column subgroup passes through the third main support column;

[0026] The line determined by any two support columns in the fifth support column subgroup passes through the first half of the line segment determined by the third main support column and the fourth main support column, which is close to the third main support column;

[0027] The line determined by any two support columns in the sixth support column subgroup passes through the first half of the line segment determined by the third main support column and the fourth main support column, which is close to the fourth main support column.

[0028] In some embodiments, the first support column subgroup includes seven auxiliary support columns, and one of the auxiliary support columns is located at a trisection point of the line segment determined by the first main support column and the second main support column, which is close to the second main support column;

[0029] The second support column subgroup includes fourteen auxiliary support columns, and one of the auxiliary support columns is located at a trisection point of the line segment determined by the first main support column and the second main support column, which is close to the first main support column, and one of the auxiliary support columns is located at the midpoint of the line segment determined by the second main support column and the third main support column;

[0030] The third support column subgroup includes seventeen auxiliary support columns and a fifth main support column, and one positioning region and ten auxiliary support columns are sequentially arranged in the direction of the third main support column along the third direction, which is close to the first main support column;

[0031] The fourth support column group includes 18 auxiliary support columns, and a positioning area is arranged between the fourth support column group and the third support column;

[0032] The fifth support column group includes 14 auxiliary support columns, and one of the auxiliary support columns is located at a trisection point of a line segment defined by the third main support column and the fourth main support column, close to the third main support column, and one auxiliary support column is close to a midpoint of a line segment defined by the first main support column and the fourth main support column.

[0033] The sixth support column group includes 7 auxiliary support columns, and one of the auxiliary support columns is located at a trisection point of a line segment defined by the third main support column and the fourth main support column, close to the fourth main support column.

[0034] In some embodiments, the main support column is provided with a corresponding at least one positioning area, and the positioning area is arranged adjacent to the corresponding main support column in the third direction.

[0035] In some embodiments, the main support column is provided with a corresponding one positioning area,

[0036] In the second panel, a first auxiliary support column, a main support column, a positioning area corresponding to the main support column and a second auxiliary support column are sequentially arranged along the third direction, the main support column has a first preset distance from the first auxiliary support column, the main support column has a second preset distance from the second auxiliary support column, and the first preset distance is less than the second preset distance.

[0037] In some embodiments, the ratio of the first preset distance to the second preset distance ranges from 1:5 to 4:5.

[0038] In some embodiments, in the second panel, a main support column and a third auxiliary support column are arranged adjacent to each other along a direction perpendicular to the third direction, and the main support column has a third preset distance from the third auxiliary support column.

[0039] The third preset distance is greater than the second preset distance.

[0040] In some embodiments, the first preset distance is 40 microns to 70 microns.

[0041] The second preset distance is 80 microns to 120 microns.

[0042] The third preset distance is 130 microns to 170 microns.

[0043] In some embodiments, the first panel comprises a plurality of pixel regions, the pixel regions comprising a transistor and a pixel electrode, the pixel electrode comprising a plurality of first branch electrodes extending along a fourth direction and a plurality of second branch electrodes extending along a fifth direction, the first branch electrodes being connected with the second branch electrodes;

[0044] The gate of the transistor is connected with a corresponding gate line, the source of the transistor is connected with a corresponding data line, and the drain of the transistor is connected with a corresponding pixel electrode;

[0045] The data line comprises first portions and second portions arranged alternately, the first portions being connected with the second portions, the first portions extending along a fourth direction, and the second portions extending along a fifth direction, the first portions being arranged along the first direction with the first branch electrodes, and the second portions being arranged along the first direction with the second branch electrodes.

[0046] In some embodiments, in a direction perpendicular to the second panel, part of the main support columns included in the second panel overlap with the first branch electrodes in the first display panel;

[0047] And / or, in a direction perpendicular to the second panel, part of the main support columns included in the second panel overlap with the second branch electrodes in the first display panel;

[0048] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlap with the data lines in the first display panel;

[0049] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel at least partially overlap with the gate lines in the first display panel;

[0050] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlap with the first branch electrodes in the first display panel;

[0051] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlap with the second branch electrodes in the first display panel;

[0052] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlap with the data lines in the first display panel;

[0053] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlaps with the gate lines in the first display panel;

[0054] And / or, in a direction perpendicular to the second panel, part of the auxiliary support columns included in the second panel overlaps with the transistors in the first display panel.

[0055] In some embodiments, in the first direction, at least two adjacent pixel regions are separated by two adjacent auxiliary support columns.

[0056] In some embodiments, the plurality of support columns in the second panel constitute a plurality of support column groups, the support column groups comprising first support column subgroups and second support column subgroups arranged alternately along the first direction;

[0057] Each first support column subgroup comprises a plurality of support columns arranged along the third direction, and each support column in the first support column subgroup satisfies that the line connecting the support column and the nearest support column to the support column extends along the third direction;

[0058] Each second support column subgroup comprises a plurality of support columns arranged along the third direction, and each support column in the second support column subgroup satisfies that the line connecting the support column and the nearest support column to the support column extends along the sixth direction;

[0059] The angle between the sixth direction and the third direction is not equal to 0°, and the angle between the sixth direction and the first direction is equal to the angle between the third direction and the first direction.

[0060] In some embodiments, the second panel comprises a first substrate and a second substrate arranged oppositely, and further comprises a first electrode arranged on the first substrate and a second electrode arranged on the second substrate and facing the first substrate.

[0061] In some embodiments, the side of the second panel facing away from the first panel is provided with a first polarizer, and the side of the second panel facing the first panel is provided with a second polarizer, the polarization direction of the first polarizer being the same as that of the second polarizer.

[0062] In some embodiments, the side of the first panel facing the second panel is provided with a third polarizer, and the side of the first panel facing away from the second panel is provided with a fourth polarizer, the third polarizer being the same polarizer as the second polarizer;

[0063] The polarization direction of the fourth polarizer is perpendicular to that of the first polarizer.

[0064] In a second aspect, the present disclosure also provides a display device, comprising: a backlight module and the display panel provided in the first aspect, wherein the first panel and the second panel in the display panel are located on the light-out side of the backlight module. BRIEF DESCRIPTION OF DRAWINGS

[0065] Figure 1 A structural schematic diagram of a display device with a privacy function according to the present disclosure;

[0066] Figure 2 A schematic diagram of a display device with obvious moire patterns;

[0067] Figure 3 A schematic diagram of a black matrix in a display liquid crystal panel;

[0068] Figure 4 A schematic diagram of a support column in a dimming liquid crystal panel;

[0069] Figure 5 A structural schematic diagram of a display panel provided by the present disclosure;

[0070] Figure 6 A top view schematic diagram of a partial area on the first panel in the present disclosure;

[0071] Figure 7a A top view schematic diagram of a partial area on the second panel in the present disclosure;

[0072] Figure 7b Another top view schematic diagram of a partial area on the second panel in the present disclosure,

[0073] Figure 8 A top view schematic diagram of the stacking of the plurality of first light-shielding strips in the first panel and the plurality of support columns in the second panel in the present disclosure;

[0074] Figure 9 A schematic diagram of observing moire patterns when considering the spacing of the first light-shielding strips and the support columns in the direction perpendicular to the first panel;

[0075] Figure 10 An effect diagram when taking different values of a in the present disclosure;

[0076] Figure 11 A structural schematic diagram of the second panel in the present disclosure;

[0077] Figure 12 A distribution schematic diagram of a partial support column in the second panel in the present disclosure;

[0078] Figure 13 AFigure 12 A schematic diagram of the distribution of support columns in one support column period unit;

[0079] Figure 14 A schematic diagram of the distribution of support columns in one support column period unit; Figure 13 A schematic diagram of the distribution of support columns in one support column period unit;

[0080] Figure 15 A schematic diagram of the distribution of support columns in one support column period unit;

[0081] Figure 16 A schematic diagram of the distribution of support columns in one support column period unit; Figure 15 A schematic diagram of the distribution of support columns in one support column period unit;

[0082] Figure 17 A schematic diagram of the distribution of support columns in one support column period unit;

[0083] Figure 18 A schematic diagram of the distribution of support columns in one support column period unit; Figure 17 A schematic diagram of the distribution of support columns in one support column period unit;

[0084] Figure 19 A schematic diagram of the distribution of support columns in one support column period unit;

[0085] Figure 20 A schematic diagram of the distribution of support columns in one support column period unit;

[0086] Figure 21 A schematic diagram of the distribution of support columns in one support column period unit;

[0087] Figure 22 A schematic diagram of the distribution of support columns in one support column period unit;

[0088] Figure 23 A schematic diagram of the distribution of support columns in one support column period unit. DETAILED DESCRIPTION

[0089] In order to make the technical solution of the present application better understood by those skilled in the art, a display panel and a display device provided by the present application are described in detail below with reference to the accompanying drawings.

[0090] Figure 1 A schematic diagram of a display device with a privacy function according to the present disclosure, as shown in FIG. 1, comprises two panels 2, 3 arranged in a stack. One of the panels 3 is used for displaying a picture, and the other panel 2 is used for adjusting the light to adjust the viewing angle of the display device. Figure 1

[0091] ​Taking an example where both panel 3, used for image display, and panel 2, used for dimming, are liquid crystal panels. Of course, in some scenarios, panel 3, used for image display, can also be an organic light-emitting diode (OLED) display panel or a micro-LED display panel.

[0092] See Figure 1 As shown, both the display liquid crystal panel 3 and the dimming liquid crystal panel 2 are located on the light-emitting side of the backlight module 1, and the display liquid crystal panel 3 is located on the side of the dimming liquid crystal panel 2 facing away from the backlight module. It should be noted that the backlight in this invention can be a collimated backlight system, or it can be a privacy film with an array of grating structures on the light-emitting surface of the backlight module; this is not limited here. The display liquid crystal panel 3 is capable of displaying images; the dimming liquid crystal panel 2 includes a first substrate 201, a second substrate 202, and a first electrode (not shown), a second electrode (not shown), and a liquid crystal layer 4 located between the first substrate 201 and the second substrate 202. A support pillar 5 is also provided between the first substrate 201 and the second substrate 202 for support. By controlling the voltage difference ΔV between the first electrode and the second electrode, the operation of the display device in privacy mode or sharing mode can be controlled; a detailed description can be found later.

[0093] Figure 2 This is a schematic diagram showing obvious moiré patterns in a display device, such as... Figure 2 As shown, in practical applications, it has been found that when the display LCD panel 3 and the dimming LCD panel 2 are stacked together, the pattern of the internal structure of the display LCD panel 3 and the pattern of the internal structure of the dimming LCD panel 2 interfere with each other, and produce relatively obvious moiré patterns.

[0094] Figure 3 This is a schematic diagram showing the black matrix within a liquid crystal panel. Figure 4 This is a schematic diagram of the support pillars inside a dimming LCD panel, as shown below. Figure 3 and Figure 4As shown, it is found through research that the obvious moire appearing in the display device is formed due to the mutual interference between the black matrix 6 pattern in the display liquid crystal panel 3 and the support column 5 pattern in the dimming liquid crystal panel 2. Specifically, the black matrix 6 pattern includes first light shielding strips 601 extending along the row direction for shielding the gate lines, and the first light shielding strips 601 are arranged in sequence in the column direction. The support columns 5 in the dimming liquid crystal panel 2 are arranged in an array in the row direction and the column direction, and the distance between two adjacent support columns 5 in the row direction is smaller than the distance between two adjacent support columns 5 in the column direction, at this time, the dimming liquid crystal panel 2 can be considered to contain a plurality of support column groups 7, each support column group 7 includes a plurality of support columns 5 arranged in sequence along the row direction, and the support column groups 7 are arranged in sequence in the column direction. Due to the small spacing between adjacent support columns 5 in the support column group 7, the overall feeling of the user to the support column group 7 will be a strip pattern extending along the row direction.

[0095] Since the first light shielding strips 601 are periodically arranged in the column direction, the support column groups 7 are also periodically arranged in the column direction, and the spatial frequency of the first light shielding strips 601 is slightly different from the spatial frequency of the support column groups 7, at this time, the pattern of the first light shielding strips 601 and the pattern of the support column groups 7 will form a beat due to the slight difference in spatial frequency, thereby producing obvious moire. It should be noted that the spatial frequency of a certain structure described in the present disclosure refers to the number of occurrences of the structure in a unit area.

[0096] In order to improve or even completely solve the above-mentioned moire problem, the present disclosure provides a corresponding solution, which will be described in detail below in combination with specific embodiments.

[0097] Figure 5 A structural schematic diagram of a display panel provided by an embodiment of the present disclosure, Figure 6 A top view schematic diagram of a partial region on a first panel in an embodiment of the present disclosure, Figure 7a A top view schematic diagram of a partial region on a second panel in an embodiment of the present disclosure, Figure 7b Another top view schematic diagram of a partial region on a second panel in an embodiment of the present disclosure, as Figure 5 to Figure 7b As shown, the display panel includes: a first panel 9 and a second panel 8 arranged opposite to the first panel 9; the first panel 9 includes: gate lines 11 extending along a first direction D1 and data lines 12 extending along a second direction D2, the gate lines 11 and the data lines 12 are arranged cross to define pixel regions; the second panel 8 includes: a plurality of support column period units arranged in an array along the first direction D1 and the second direction D2, the support column period unit includes a plurality of support columns 10, and at least part of the support columns 10 satisfy: the line connecting the support column 10 and the support column 10 closest to the support column 10 extends along a third direction D3, and the included angle γ between the third direction D3 and the first direction D1 is not equal to 0°.

[0098] It should be noted that the line connecting the two support columns in the embodiments of the present disclosure can refer to the line connecting the centers of the two support columns, or can refer to the line connecting the same side edges of the two support columns. In the following description, the case of taking the line connecting the centers of the two support columns as an example is described. In addition, the center of the support column in the present disclosure refers to the center of the support column in the cross-sectional view parallel to the second panel.

[0099] The first panel 9 further includes a black matrix, which completely covers the gate lines 11 and the data lines 12. The black matrix includes a first light-shielding strip 601 for shielding the gate lines 11 and a second light-shielding strip 602 for shielding the data lines 12. The width of the first light-shielding strip 601 in the second direction D2 is greater than the width of the second light-shielding strip 602 in the first direction D1.

[0100] Generally, since the width of the second light-shielding strip 602 is relatively narrow and the spatial frequency thereof is greatly different from the spatial frequency of the support columns, it is difficult to form beats between the second light-shielding strip 602 and the support columns.

[0101] In the embodiments of the present disclosure, the material of the support column includes a high-molecular organic compound material such as acrylic and polyimide. Optionally, the material of the support column is a light-transmitting material, which can increase the transmittance of the backlight.

[0102] It should be noted that the display panel provided in the embodiments of the present disclosure is a display panel with a privacy function, which can be switched between a privacy mode and a sharing mode. The first panel 9 in the embodiments of the present disclosure is a display liquid crystal panel, and the second panel 8 is a display panel for light adjustment.

[0103] In addition, the first direction D1 is the row direction in Figure 6 , Figure 7a , Figure 7b , and the second direction D2 is the column direction in Figure 6 , Figure 7a , Figure 7b . These are only exemplary and do not limit the technical solutions of the present disclosure.

[0104] In the embodiments of the present disclosure, each support column periodic unit has the same support column arrangement structure. Therefore, when the second panel 8 is prepared and the support columns on the second panel 8 need to be monitored, only one support column periodic unit on the second panel 8 needs to be selected for monitoring (the support columns are periodically arranged, and only one minimum periodic unit needs to be monitored during the production process). At this time, a machine can be used for automatic monitoring (only the support column pattern has periodicity, which can be recognized by a camera of a monitoring device and one minimum periodic unit can be selected for monitoring).

[0105] At the same time, unlike the case where the line connecting each support column in the existing display panel for dimming and the nearest support column extends along the first direction D1 (i.e., the line connecting the support column 10 and the nearest support column 10 extends along the first direction D1), as shown in FIG. 1, in the embodiments of the present disclosure, the positions of the support columns 10 in the existing display panel for dimming are adjusted so that at least part of the support columns 10 satisfy the condition that the line connecting the support column 10 and the nearest support column 10 extends along the third direction D3, where the third direction D3 has an angle γ with the first direction D1 that is not equal to 0°. At this time, the beat effect between the pattern of the support column 10 and the pattern of the first light-shielding strip 601 is weakened, and moiré can be improved to a certain extent. Figure 4 In some embodiments, the plurality of support columns 10 in the second panel 8 constitute a plurality of support column groups 14, each of the support column groups 14 includes a plurality of support columns 10 arranged along the third direction D3, and each of the support columns 10 in the support column group 14 satisfies the condition that the line connecting the support column 10 and the nearest support column 10 extends along the third direction D3.

[0106] In some embodiments, the plurality of support columns 10 in the second panel 8 constitute a plurality of support column groups 14, each of the support column groups 14 includes a plurality of support columns 10 arranged along the third direction D3, and each of the support columns 10 in the support column group 14 satisfies the condition that the line connecting the support column 10 and the nearest support column 10 extends along the third direction D3.

[0107] Figure 8 FIG. 6 is a top view of the stacking of the plurality of first light-shielding strips in the first panel and the plurality of support column groups in the second panel in the embodiments of the present disclosure, as shown in FIG. 1. Figure 8 As shown in FIG. 6, the first light-shielding strips 601 have a first spacing P1, the support column groups 14 have a spacing P2, and the angle between the third direction D3 and the first direction D1 is α. At this time, without considering the spacing of the first light-shielding strips 601 and the support column groups 14 in the direction perpendicular to the first panel 9, the spacing P of the moiré formed by the first light-shielding strips 601 and the support column groups 14 observed in the direction perpendicular to the first panel 9 and the angle θ between the extension direction of the moiré and the first direction D1 can be derived by geometric relationship as follows:

[0108]

[0109]

[0110]

[0111] Figure 9 FIG. 7 is a schematic view of observing moiré when considering the spacing of the first light-shielding strips and the support column groups in the direction perpendicular to the first panel, as shown in FIG. 1. Figure 9 As shown in FIG. 7, when considering the spacing △d of the first light-shielding strips 601 and the support column groups 14 in the direction perpendicular to the first panel 9 and the viewing distance d, the spacing P and the angle θ of the moiré observed can be derived by geometric relationship as follows:

[0112]

[0113]

[0114]

[0115] Based on the above formula (1) and formula (4), it can be seen that when P1, P2, d, △d are fixed, the value of P becomes a cosine periodic change with the angle α when the angle α starts from 0°, and when the value of P decreases to a certain extent (generally less than 2mm), the interference moire formed by the first shading strip 601 and the support column group 14 will not be observed due to the small moire spacing P, that is, the purpose of "eliminating" moire is achieved.

[0116] Figure 10 For the effect diagram in the embodiment of the present disclosure by simulating different values of α, as shown in Figure 10 (a) is an effect diagram when α=0° is simulated, P=5mm and θ=0° are simulated; (b) is an effect diagram when α=0.1° is simulated, P=7mm and θ=177° are simulated; (c) is an effect diagram when α=0.2° is simulated, P=6.5mm and θ=174° are simulated; (d) is an effect diagram when α=0.5° is simulated, P=6mm and θ=165° are simulated; (e) is an effect diagram when α=1° is simulated, P=6mm and θ=150° are simulated; (f) is an effect diagram when α=2° is simulated, P=5.5mm and θ=132° are simulated; (g) is an effect diagram when α=5° is simulated, P=1.7mm and θ=108° are simulated; (h) is an effect diagram when α=7° is simulated, P=1.5mm and θ=100° are simulated.

[0117] When the actual measurement is performed on the cases of α=5° and α=7°, the results are as follows: when α=5°, P=2.5mm and θ=115° are measured; when α=7°, P=1mm and θ=105° are measured.

[0118] Based on the above simulation results and actual measurement results, in some embodiments, the angle between the third direction D3 and the first direction D1 is designed to be greater than or equal to 7°. It should be noted that, Figure 7a and Figure 7b Two different cases when the angle between the third direction D3 and the first direction D1 is equal to 7° are exemplarily shown.

[0119] Further optionally, the angle between the third direction D3 and the first direction D1 is 50°-60°, for example, the angle is 56°. While "eliminating" moire, considering the factor of process error, if the angle between the third direction D3 and the first direction D1 is designed to be too small, there is still a risk of moire in the subsequent preparation process if there is a process error or process fluctuation, so the angle between the third direction D3 and the first direction D1 is designed to be relatively large, which can fully avoid the risk of generating moire.

[0120] Figure 11 This is a schematic diagram of the structure of the second panel in an embodiment of this disclosure, such as... Figure 11 As shown, the second panel 8 includes a first substrate 801 and a second substrate 802 disposed opposite to each other. Figure 11 The illustration only shows the case where all support pillars are disposed on the first substrate 801. This case is for illustrative purposes only and does not limit the technical solutions of this disclosure. In the embodiments of this disclosure, all support pillars may be disposed on the first substrate 801, or all support pillars may be disposed on the second substrate 802, or some support pillars may be disposed on the first substrate 801 and other support pillars may be disposed on the second substrate 802. All of these cases fall within the protection scope of this disclosure.

[0121] In some embodiments, the second panel 8 further includes a first electrode 803 and a second electrode 804 located between the first substrate 801 and the second substrate 802, wherein an electric field can be formed between the first electrode 803 and the second electrode 804 to control the deflection of liquid crystal molecules in the second panel 8.

[0122] In some embodiments, the first electrode 803 is disposed on the first substrate 801 and located on the side of the first substrate 801 facing the second substrate 802, and the second electrode 804 is disposed on the second substrate 802 and located on the side of the second substrate 802 facing the first substrate 801; further, both the first electrode 803 and the second electrode 804 are planar electrodes.

[0123] It should be noted that, in this embodiment, the first electrode 803 and the second electrode 804 can also be simultaneously disposed on the first substrate 801 or simultaneously disposed on the second substrate 802 (no corresponding figure is given). In this case, the first electrode 803 and the second electrode 804 can be disposed in the same layer or in different layers. An edge electric field can be formed between the first electrode 803 and the second electrode 804 to control the deflection of liquid crystal molecules in the second panel 8.

[0124] Figure 12 This is a schematic diagram showing the distribution of some support columns inside the second panel in an embodiment of this disclosure. Figure 13 for Figure 12 A schematic diagram of the distribution of support columns within a single periodic unit. Figure 14 for Figure 13 An enlarged schematic diagram of region A in the middle, as shown below. Figure 12 to Figure 14As shown, in some embodiments, the plurality of support columns in the support column periodic unit 15 includes at least one main support column 10a and a plurality of auxiliary support columns 10b, wherein the height of the main support column 10a in the direction perpendicular to the second panel 8 is greater than the height of the auxiliary support column 10b in the direction perpendicular to the second panel 8.

[0125] In the normal state, the two ends of the main support column 10a are in contact with the two side substrates, respectively, and one end of the auxiliary support column 10b is in contact with one side substrate and the other end is not in contact with the other side substrate; when the second panel 8 is pressed, the thickness of the liquid crystal cell at the pressing position is reduced, and the two ends of the auxiliary support column 10b at the pressing position are in contact with the two side substrates, respectively, to play a supporting role. In the second panel 8, the arrangement density of the main support column 10a is less than the arrangement density of the auxiliary support column 10b. The arrangement density of the support column refers to the number of support columns arranged per unit area.

[0126] In some embodiments, the ratio of the number of main support columns 10a to the number of auxiliary support columns 10b in the support column periodic unit 15 is 1:50-1:10; such design can ensure the support strength of the support column to the liquid crystal cell, and when used for privacy display, the second panel for dimming can be arranged on the side away from the backlight module of the first panel for display, or arranged between the first panel for display and the backlight module. When arranged between the first panel for display and the backlight module, the second panel for dimming needs to bear the weight of the first panel, so the support strength of the support column of the second panel needs to be considered comprehensively. In the present application, the ratio of the number of main support columns 10a to the number of auxiliary support columns 10b in the support column periodic unit 15 is 1:50-1:10, which can meet the above two setting modes of the second panel and ensure that the support strength is sufficient enough to not affect the display effect; of course, in actual application, the number of main support columns 10a and the number of auxiliary support columns 10b in the support column periodic unit 15 can also be designed reasonably according to actual needs.

[0127] In some embodiments, the diameter of the main support column 10a is smaller than the diameter of the auxiliary support column 10b. In some embodiments, the diameter of the main support column 10a is 10-14 microns, for example, 12 microns; the diameter of the auxiliary support column 10b is 15-19 microns, for example, 17 microns. In the disclosed embodiments, the diameter of the main support column 10a and the diameter of the auxiliary support column 10b can be designed according to actual needs. The diameter of the auxiliary support column is larger, which can ensure sufficient support force to the liquid crystal cell when the liquid crystal cell is compressed.

[0128] Continuing to refer to Figure 12 and Figure 13As shown, in some embodiments, the display panel is divided into multiple periodic regions arranged in an array along the first direction D1 and the second direction D2. Each periodic region corresponds one-to-one with a support column periodic unit 15, which is located within its corresponding periodic region. The periodic region is rectangular in shape. Each support column periodic unit 15 includes at least four main support columns 10a, with four of these main support columns 10a1 to 10a4 located at the four vertices of their respective periodic regions. Four adjacent periodic regions arranged in a 2×2 configuration share the same main support column at their common vertex. During support column monitoring, only four adjacent, rectangularly arranged main support columns 10a1 to 10a4 are needed to determine the periodic region corresponding to a support column periodic unit 15, allowing the machine to automatically and quickly identify a support column periodic unit 15 to be monitored.

[0129] In some embodiments, the distance between two adjacent main support columns a in the first direction D1 (e.g., Figure 13 The distance between main support column 10a1 and main support column 10a2 in the middle. Figure 13 The distance between the main support column 10a3 and the main support column 10a4 is greater than 500 micrometers. Furthermore, the distance between two adjacent main support columns 10a in the first direction D1 is 500 to 600 micrometers, such as 550 micrometers, 551 micrometers, etc.

[0130] It should be noted that, in this embodiment, the distance between the two support columns can refer to the distance between their centers or the distance between their edges on the same side. In the following description, the case where the distance between the two support columns is the distance between their centers will be used as an example.

[0131] In some embodiments, the distance between two adjacent main support columns 10a in the second direction D2 (e.g., Figure 13 The distance between main support column 10a1 and main support column 10a4 in the middle. Figure 13 The distance between the main support column 10a2 and the main support column 10a3 is greater than 1000 micrometers. Furthermore, the distance between two adjacent main support columns 10a in the second direction D2 is 1000 micrometers to 1200 micrometers, such as 1100 micrometers, 1103 micrometers, etc.

[0132] In some embodiments, the distance between the two main support columns 10a connected on the third-party D3 (e.g., Figure 13 The distance between the main support column 10a1 and the main support column 10a5 is further shown in the third direction D3. The distance between two adjacent main support columns 10a is 500 micrometers to 600 micrometers, for example, 550 micrometers, 551 micrometers, etc.

[0133] In some embodiments, the other support columns in the support column periodic unit 15, other than the four main support columns 10a1-10a4 located at the four vertices of the corresponding periodic region, are divided into a plurality of support column subgroups 1401-1406; each of the support column subgroups 1401-1406 includes a plurality of support columns arranged along the third direction D3, and each of the support columns in the support column subgroups 1401-1406 satisfies that the line extending from the support column to the nearest support column passes through the support column.

[0134] It should be noted that the plurality of support column subgroups arranged along the third direction D3 and located in different support column periodic units 15 can be spliced into one support column group 14, and each of the support columns in the support column group 14 satisfies that the line extending from the support column to the nearest support column passes through the support column.

[0135] Referring to Figure 13 As shown in the figure, in some embodiments, the other support columns in the support column periodic unit 15, other than the four main support columns 10a1-10a4 located at the four vertices of the corresponding periodic region, include one main support column 10a and seventy-seven auxiliary support columns 10b.

[0136] In some embodiments, the four main support columns 10a located at the four vertices of the corresponding periodic region in the support column periodic unit 15 are respectively a first main support column 10a1, a second main support column 10a2 adjacent to the first main support column 10a1 in the first direction D1, a third main support column 10a3 adjacent to the second main support column 10a2 in the second direction D2, and a fourth main support column 10a4 adjacent to the third main support column 10a3 in the first direction D1.

[0137] The other support columns in the support column periodic unit 15, other than the four main support columns 10a1-10a4 located at the four vertices of the corresponding periodic region, are divided into six support column subgroups 1401-1406, which are respectively a first support column subgroup 1401, a second support column subgroup 1402, a third support column subgroup 1403, a fourth support column subgroup 1404, a fifth support column subgroup 1405, and a sixth support column subgroup 1406.

[0138] The line determined by any two support columns in the first support column subgroup 1401 passes through the first half of the line segment determined by the first main support column 10a and the second main support column 10a2, which is close to the second main support column 10a2.

[0139] The line determined by any two support columns in the second support column subgroup 1402 passes through the first half of the line segment determined by the first main support column 10a1 and the second main support column 10a2, which is close to the first main support column 10a1.

[0140] The line determined by any two support posts in the third support post group 1403 passes through the first main support post 10al.

[0141] The line determined by any two support posts in the fourth support post group 1404 passes through the third main support post 10a3.

[0142] The line determined by any two support posts in the fifth support post group 1405 passes through the half of the line segment determined by the third main support post 10a3 and the fourth main support post 10a4 that is closer to the third main support post 10a3.

[0143] The line determined by any two support posts in the sixth support post group 1406 passes through the half of the line segment determined by the third main support post 10a3 and the fourth main support post 10a4 that is closer to the fourth main support post 10a4.

[0144] It should be noted that the line determined by two support posts passing through a support post in the disclosed embodiments can mean that the straight line corresponding to the line passes through the region defined by the support post, for example, the straight line corresponding to the line can pass through the center of the support post. In the following description, the straight line corresponding to the line passing through the center of the support post is taken as an example for description.

[0145] In the disclosed embodiments, the line segment determined by two support posts can mean the line segment determined by the centers of the two support posts, or can mean the line segment determined by the same side edge points of the two support posts. In the following description, the line segment determined by the two support posts is taken as the line segment determined by the centers of the two support posts for description.

[0146] Continuing to refer to FIG. 14, Figure 13 As shown in FIG. 14, in some embodiments, the first support post group 1401 includes seven auxiliary support posts 10b, and one of the auxiliary support posts 10b is located at one of the three equal division points in the line segment determined by the first main support post 10al and the second main support post 10a2 and closer to the second main support post 10a2.

[0147] The second support column group 1402 includes 14 auxiliary support columns 10b, and one of the auxiliary support columns 10b is located in a line segment defined by the first main support column 10al and the second main support column 10a2 close to one of the three equal points of the first main support column 10al, and one of the auxiliary support columns 10b is close to the midpoint of the line segment defined by the second main support column 10a2 and the third main support column 10a3. Optionally, the area where the auxiliary support column 10b close to the midpoint of the line segment defined by the second main support column 10a2 and the third main support column 10a3 is located covers the midpoint of the line segment defined by the second main support column 10a2 and the third main support column 10a3; for example, the center of the auxiliary support column 10b is located at the midpoint of the line segment defined by the second main support column 10a2 and the third main support column 10a3.

[0148] The third support column group 1403 includes 17 auxiliary support columns 10b and one fifth main support column 10a5, and one positioning area and 10 auxiliary support columns 10b are sequentially arranged along the direction of the fifth main support column 10a5 close to the first main support column 10al in the third direction D3.

[0149] The fourth support column group 1404 includes 18 auxiliary support columns 10b, and one positioning area is arranged between the fourth support column group 1404 and the third support column.

[0150] The fifth support column group 1405 includes 14 auxiliary support columns 10b, and one of the auxiliary support columns 10b is located in a line segment defined by the third main support column 10a3 and the fourth main support column 10a4 close to one of the three equal points of the third main support column 10a3, and one of the auxiliary support columns 10b is close to the midpoint of the line segment defined by the first main support column 10al and the fourth main support column 10a4. Optionally, the area where the auxiliary support column 10b close to the midpoint of the line segment defined by the first main support column 10al and the fourth main support column 10a4 is located covers the midpoint of the line segment defined by the first main support column 10al and the fourth main support column 10a4; for example, the center of the auxiliary support column 10b is located at the midpoint of the line segment defined by the first main support column 10al and the fourth main support column 10a4.

[0151] The sixth support column group 1406 includes 7 auxiliary support columns 10b, and one of the auxiliary support columns 10b is located in a line segment defined by the third main support column 10a3 and the fourth main support column 10a4 close to one of the three equal points of the fourth main support column 10a4.

[0152] In some embodiments, the main support column 10a is configured with a corresponding at least one positioning area, which is arranged adjacent to the corresponding main support column 10a in the third direction D3. In the embodiments of the present disclosure, the main support column 10a in the second panel 8 is facilitated to be quickly positioned by configuring the main support column 10a with the corresponding positioning area.

[0153] In some embodiments, the main support column 10a is configured with a corresponding at least one positioning area, which is arranged adjacent to the corresponding main support column 10a in the third direction D3. In the embodiments of the present disclosure, the main support column 10a in the second panel 8 is facilitated to be quickly positioned by configuring the main support column 10a with the corresponding positioning area.

[0154] Referring to Figure 14 In some embodiments, in the second panel 8, along the third direction D3, the first auxiliary support column 10b1, the main support column 10a, the positioning area corresponding to the main support column 10a and the second auxiliary support column 10b2 are sequentially arranged, the main support column 10a and the first auxiliary support column 10b1 have a first preset distance L1, the main support column 10a and the second auxiliary support column 10b2 have a second preset distance L2, and the first preset distance L1 is less than the second preset distance L2. In some embodiments, the ratio of the first preset distance L1 to the second preset distance L2 ranges from 1:5 to 4:5; for example, the ratio of the first preset distance L1 to the second preset distance L2 is 1:2.

[0155] Referring to Figure 14 In some embodiments, in the second panel 8, along the third direction D3, the first auxiliary support column 10b1, the main support column 10a, the positioning area corresponding to the main support column 10a and the second auxiliary support column 10b2 are sequentially arranged, the main support column 10a and the first auxiliary support column 10b1 have a first preset distance L1, the main support column 10a and the second auxiliary support column 10b2 have a second preset distance L2, and the first preset distance L1 is less than the second preset distance L2. In some embodiments, the ratio of the first preset distance L1 to the second preset distance L2 ranges from 1:5 to 4:5; for example, the ratio of the first preset distance L1 to the second preset distance L2 is 1:2.

[0156] Referring to Figure 14 In some embodiments, the first preset distance L1 is 40 microns to 70 microns, for example, 51 microns; the second preset distance L2 is 80 microns to 120 microns, for example, 102 microns; and the third preset distance L3 is 130 microns to 170 microns, for example, 153 microns.

[0157] Figure 15 FIG. 1 is a top view of a schematic diagram of a first panel in the embodiments of the present disclosure, Figure 16 is Figure 15 is a cross-sectional view of the A-A' direction in Figure 15 and Figure 16As shown, the first panel 9 is opposite to the array substrate and the counter substrate, and includes a plurality of pixel regions, each of which includes a transistor TFT and a pixel electrode 13, both of which are located on the array substrate. The pixel electrode 13 includes a plurality of first branch electrodes 1301 extending along the fourth direction D4 and a plurality of second branch electrodes 1302 extending along the fifth direction D5; in the embodiments of the present disclosure, the pixel electrode is a dual-domain electrode, and the region where the first branch electrode 1301 and the second branch electrode 1302 are connected is a domain line region; the gate 21 of the transistor TFT is connected to the corresponding gate line 11, the source 23 of the transistor TFT is connected to the corresponding data line 12, and the drain 24 of the transistor TFT is connected to the corresponding pixel electrode 13.

[0158] The data line 12 includes a first portion 1201 and a second portion 1202 arranged alternately, the first portion 1201 is connected to the second portion 1202, the first portion 1201 extends along the fourth direction D4, and the second portion 1202 extends along the fifth direction D5; the first portion 1201 is arranged along the first direction D1 with the first branch electrode, and the second portion 1202 is arranged along the first direction D1 with the second branch electrode. In some embodiments, part of the second portion 1202 is multiplexed as the source 23 of the transistor TFT.

[0159] The gate line includes a third portion 1101 and a fourth portion 1102 arranged alternately, the third portion 1101 is connected to the fourth portion 1102, the width of the third portion 1101 in the second direction D2 is smaller than the width of the fourth portion 1102 in the second direction D2, and the fourth portion 1102 is multiplexed as the gate 21 of the transistor TFT.

[0160] In some embodiments, in the direction perpendicular to the first display panel, the third portion 1101 overlaps with the pixel electrode 11 located in the next row of pixel regions to form a storage capacitor.

[0161] In some embodiments, a common electrode 27 is further arranged on the array substrate, and an electric field is formed between the pixel electrode 13 and the common electrode 27 to control the deflection of the liquid crystal in the corresponding pixel region. Of course, the common electrode 27 can also be arranged on the counter substrate.

[0162] Preparation Figure 16The steps of the array substrate are as follows: first, a gate metal layer (including the patterns of the gate electrode 21 and the gate line 11) is prepared by a patterning process; then, a gate insulating layer 25 is prepared; then, a semiconductor layer (including the active layer pattern 22) is prepared by a patterning process; then, a pixel electrode 13 pattern is prepared by a patterning process; then, a source-drain metal layer (including the patterns of the source electrode 23, the drain electrode 24, and the data line 12) is prepared by a patterning process; then, a passivation layer 26 is prepared; finally, a common electrode 27 pattern is prepared by a patterning process (when the common electrode is located on the side of the pixel electrode away from the first substrate, the common electrode is a slit electrode).

[0163] Optionally, when the common electrode is arranged on the side of the pixel electrode away from the substrate, the pixel electrode can also be a plate-shaped electrode, and no electrode slit is arranged, while the common electrode is provided with a slit, and the common electrode is designed as Figure 15 As shown, the common electrode includes branch electrodes extending in two directions; optionally, when the common electrode is arranged on the side of the pixel electrode close to the substrate, the common electrode can be a plate-shaped electrode, and no electrode slit is arranged, while the pixel electrode is designed as Figure 15 As shown, the common electrode includes branch electrodes extending in two directions; optionally, when the common electrode is arranged on the side of the pixel electrode close to the substrate, the common electrode can be a plate-shaped electrode, and no electrode slit is arranged, while the pixel electrode is designed as

[0164] Figure 17 FIG. 1 is a top view of a display panel according to an embodiment of the present disclosure, Figure 18 FIG. 2 is a top view of a display panel according to an embodiment of the present disclosure, Figure 17 FIG. 3 is an enlarged view of the C region in FIG. 2, Figure 19 FIG. 4 is a top view of a black matrix and a support column in a partial region of a display panel according to an embodiment of the present disclosure, and Figure 17 to Figure 19As shown, in the direction perpendicular to the second panel, the partial main support column included in the second panel overlaps the first branch electrode 1301 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial main support column included in the second panel overlaps the second branch electrode 1302 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps the data line 1212 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps at least the gate line 11 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps at least the first branch electrode 1301 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps at least the second branch electrode 1302 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps the data line 1212 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps the gate line 11 in the first display panel; and / or, in the direction perpendicular to the second panel, the partial auxiliary support column included in the second panel overlaps the transistor in the first display panel.

[0165] Referring to Figure 19 As shown, the width of the black matrix at the position crossing the data line along the extending direction of the gate line is greater than the width b of the black matrix between two adjacent sub-pixel regions in the extending direction of the data line; the width a of the black matrix at the position crossing the data line is wider for better light shielding effect on the transistor. The shape of the black matrix designed in this way can improve the moire problem caused by the arrangement of the support columns extending along the gate line in the prior art. In the design of the present application, the extending direction of the plurality of continuous support columns and the gate line form a certain angle, which can improve the moire problem. Optionally, the width of the data line is c, the ratio of a to c is in the range of 3-9, including the end point value, for example, the ratio is 3, 4, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, etc., and the ratio of a to b is in the range of 0.5-3, including the end point value, for example, 0.5, 1, 1.5, 2, 2.5, 3, etc. Optionally, a is greater than 30 um, for example, 35 um, 38 um, 39 um, 40 um, etc., b is greater than 20 um, for example, 25 um, 27 um, 29 um, etc., and c is greater than 4 um, for example, 5 um, 6 um, 7 um, etc.

[0166] In some embodiments, in the first direction D1, at least two adjacent pixel regions are separated by at least two auxiliary support columns.

[0167] Figure 20 FIG. 7 is a top view of another partial region of the second panel in an embodiment of the present disclosure, and FIG. 8 is a top view of another partial region of the second panel in an embodiment of the present disclosure. Figure 20 As shown in FIG. 7, in some embodiments, the plurality of support columns in the second panel 8 form a plurality of support column groups 14, and the support column groups 14 include first support column subgroups 14a and second support column subgroups 14b arranged alternately along the first direction D1; each first support column subgroup 14a includes a plurality of support columns arranged along the third direction D3, and each support column in the first support column subgroup 14a satisfies that the line connecting the support column and the nearest support column to the support column extends along the third direction D3; each second support column subgroup 14b includes a plurality of support columns arranged along the third direction D3, and each support column in the second support column subgroup 14b satisfies that the line connecting the support column and the nearest support column to the support column extends along the sixth direction D6; the angle between the sixth direction D6 and the third direction D3 is not equal to 0°, and the angle between the sixth direction D6 and the first direction D1 is equal to the angle between the third direction D3 and the first direction D1. Through the above design, the arrangement of the support columns can be mixed, so that the arrangement of the support columns is greatly different from the arrangement of the first light-shielding strips, which can effectively prevent the support columns from beating with the first light-shielding strips, thereby effectively preventing the occurrence of moire.

[0168] Figure 21 FIG. 9 is another structural schematic view of a display panel provided by an embodiment of the present disclosure, and FIG. 10 is another structural schematic view of a display panel provided by an embodiment of the present disclosure. Figure 21 As shown in FIG. 9, in some embodiments, the side of the second panel 8 facing away from the first panel 9 is provided with a first polarizer 31, the side of the second panel 8 facing toward the first panel 9 is provided with a second polarizer 32, and the polarization directions of the first polarizer 31 and the second polarizer 32 are the same.

[0169] The side of the first panel 9 facing toward the second panel 8 is provided with a third polarizer 33, and the side of the first panel 9 facing away from the second panel 8 is provided with a fourth polarizer 34; the polarization direction of the third polarizer 33 is the same as that of the second polarizer 32, and the polarization direction of the fourth polarizer 34 is perpendicular to that of the first polarizer 31.

[0170] In some embodiments, the third polarizer 33 and the second polarizer 32 are the same polarizer, which can effectively reduce the overall thickness of the display panel.

[0171] For example, the light transmission axes of the first polarizer 31 to the third polarizer 33 are all 0°, and the light transmission axis of the fourth polarizer 34 is 90°.

[0172] When the voltage difference ΔV between the first and second electrodes is 0V (the voltages applied to the first and second electrodes are equal), the liquid crystal in the second panel 8 does not deflect. The light emitted by the backlight module passes through the first polarizer 31, the liquid crystal layer in the second panel 8, and the second polarizer 32 before reaching the third polarizer 33. During this process, the liquid crystal layer in the second panel 8 does not affect the polarization direction of the light; that is, the light emitted by the second panel 8 includes light at a positive viewing angle (the angle between the light and the normal to the second panel 8 is small). The light emitted from the second panel 8 includes light at an angle less than or equal to 30% to the normal of the second panel 8, as well as light at a side viewing angle (light at a large angle to the normal of the second panel 8; for example, light at an angle greater than 30% to the normal of the second panel 8). Subsequently, the light emitted from the second panel 8 passes sequentially through the third polarizer 33, the liquid crystal layer in the first panel 9, and the fourth polarizer 34 to achieve image display. At this time, the light emitted from the first panel 9 includes both light at the front viewing angle and light at the side viewing angle; that is, the display device operates in sharing mode.

[0173] When the voltage difference ΔV between the first electrode and the second electrode is a preset value (e.g., 5V), the liquid crystal in the second panel 8 rotates to a specific angle. The light emitted by the backlight module passes through the first polarizer 31, the liquid crystal layer in the second panel 8, and the second polarizer 32 to reach the third polarizer 33. During this process, the liquid crystal layer in the second panel 8 has a small influence on the polarization direction of light with a small angle to the normal of the second panel 8 (it has almost no influence on the polarization direction of light with a 0° angle to the normal of the second panel 8). This small-angle light can pass through the second polarizer 32. However, the liquid crystal layer in the second panel 8 has a large influence on the polarization direction of light with a large angle to the normal of the second panel 8, and makes the polarization direction of this part of the light perpendicular or basically perpendicular to the transmission axis of the second polarizer 32 when it reaches the second polarizer 32. This results in this part of the large-angle light being unable to pass through the second polarizer 32. That is, the light emitted by the second panel 8 only contains light with a positive viewing angle. Subsequently, the light emitted from the second panel 8 passes sequentially through the third polarizer 33, the liquid crystal layer in the first panel 9, and the fourth polarizer 34 to achieve image display. At this time, the light emitted from the first panel 9 only includes light at the normal viewing angle; that is, the display device operates in privacy mode.

[0174] Figure 22 This is a schematic diagram of the structure of a display device provided in an embodiment of the present disclosure, such as... Figure 22 As shown, the display device includes a backlight module 1 and a display panel, wherein the display panel adopts the display panel provided in the previous embodiment, and the first panel 9 and the second panel 8 in the display panel are both located on the light-emitting side of the backlight module 1. For a description of the display panel, please refer to the content in the previous embodiment, and it will not be repeated here.

[0175] Figure 23 Another structural schematic diagram of a display device provided by the embodiments of the present disclosure is shown in FIG. 8. As shown in FIG. 8, the first panel 9 is located on the side of the second panel 8 facing away from the backlight module 1, which is different from the case shown in FIG. 7. Figure 23 Figure 22 As shown in FIG. 8, the first panel 9 is located on the side of the second panel 8 facing away from the backlight module 1, which is different from the case shown in FIG. 7. Figure 23 As shown in FIG. 8, the first panel 9 is located on the side of the second panel 8 facing away from the backlight module 1, which is different from the case shown in FIG. 7.

[0176] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered as the protection scope of the present disclosure.​

Claims

1. A display panel, wherein the display panel is a display panel with a privacy protection function, wherein, include: A first panel and a second panel disposed opposite to the first panel; The second panel is disposed on the backlight side of the first panel; The first panel is a display panel, and the first panel includes: a grid line extending along a first direction and a data line extending along a second direction, the grid line and the data line intersecting to define a pixel area; the first panel also includes: a black matrix, the black matrix including a plurality of first light-shielding strips extending along the first direction and a plurality of second light-shielding strips extending along the second direction; The second panel is a dimming panel, and the second panel includes: a plurality of support column periodic units arranged in an array along the first direction and the second direction, the support column periodic unit including a plurality of support columns, at least some of the support columns satisfying: the line connecting the support column and the support column closest to the support column extends along a third direction, and the angle between the third direction and the first direction is not equal to 0°; The multiple support columns within the support column periodic unit include: at least one main support column and multiple auxiliary support columns; the ratio of the number of main support columns to the number of auxiliary support columns within the support column periodic unit is 1:50 to 1:10; and the diameter of the main support column is smaller than the diameter of the auxiliary support column. The main support column is configured with at least one corresponding positioning area. The positioning area and the corresponding main support column are arranged adjacent to each other in the third direction. Along the third direction, there are a first auxiliary support column, a main support column, a positioning area corresponding to the main support column, and a second auxiliary support column arranged in sequence. There is a first preset distance between the center of the main support column and the center of the first auxiliary support column, and there is a second preset distance between the center of the main support column and the center of the second auxiliary support column. The first preset distance is less than the second preset distance.

2. The display panel according to claim 1, wherein, The angle between the third direction and the first direction is greater than or equal to 7°.

3. The display panel according to claim 1, wherein, The first light-shielding strip covers the area where the gate line is located, and the second light-shielding strip covers the area where the data line is located; the width of the black matrix along the extension direction of the gate line at the intersection with the data line is greater than the width of the black matrix between two adjacent pixel areas along the extension direction of the data line.

4. The display panel according to any one of claims 1 to 3, wherein, The multiple support columns in the second panel constitute multiple support column groups. Each support column group includes multiple support columns arranged along the third direction, and each support column in the support column group satisfies the following condition: the line connecting the support column and the support column closest to the support column extends along the third direction.

5. The display panel according to claim 4, wherein, The display panel is divided into multiple periodic regions arranged in an array along the first direction and the second direction. Each periodic region corresponds to a periodic support column unit. The periodic support column unit is located in the corresponding periodic region. The periodic region is rectangular in shape. The support column periodic unit includes at least four main support columns, and four of the four main support columns are located at the four vertices of the corresponding periodic region. The four adjacent periodic regions arranged in a 2×2 pattern share the same main support column at their common vertex.

6. The display panel according to claim 5, wherein, The distance between two adjacent main support columns in the first direction is greater than 500 micrometers; The distance between two adjacent main support columns in the second direction is greater than 1000 micrometers.

7. The display panel according to claim 5, wherein, The support columns within the periodic unit, excluding the four main support columns located at the four vertices of the corresponding periodic region, are divided into multiple support column groups. Each support column group includes a plurality of support columns arranged along the third direction, and each support column in the support column group satisfies the condition that the line connecting the support column and the support column closest to the support column extends along the third direction.

8. The display panel according to claim 7, wherein, In addition to the four main support columns located at the four vertices of the corresponding periodic region, the other support columns within the support column periodic unit include: one main support column and 77 auxiliary support columns.

9. The display panel according to claim 7, wherein, The four main support columns located at the four vertices of the corresponding periodic region within the support column periodic unit are: a first main support column, a second main support column adjacent to the first main support column in the first direction, a third main support column adjacent to the second main support column in the second direction, and a fourth main support column adjacent to the third main support column in the first direction. The support columns within the periodic unit, excluding the four main support columns located at the four vertices of the corresponding periodic region, are divided into six support column subgroups: the first support column group, the second support column group, the third support column group, the fourth support column group, the fifth support column group, and the sixth support column group. The line connecting any two support columns in the first support column group passes through the half of the line segment defined by the first main support column and the second main support column that is closest to the second main support column; The line connecting any two support columns in the second support column group passes through the half of the line segment defined by the first main support column and the second main support column that is closest to the first main support column. The line connecting any two support columns in the third support column group passes through the first main support column; The line connecting any two support columns in the fourth support column group passes through the third main support column; The line connecting any two support columns in the fifth support column group passes through the half of the line segment defined by the third main support column and the fourth main support column, which is closest to the third main support column. The line connecting any two support columns in the sixth support column group passes through the half of the line segment defined by the third main support column and the fourth main support column, which is closest to the fourth main support column.

10. The display panel according to claim 9, wherein, The first support column group includes 7 auxiliary support columns, and one of the auxiliary support columns is located within the line segment determined by the first main support column and the second main support column, close to a trisection point of the second main support column; The second support column group includes 14 auxiliary support columns, one of which is located within a line segment defined by the first main support column and the second main support column, near a trisection point of the first main support column, and the other is located near the midpoint of the line segment defined by the second main support column and the third main support column. The third support column group includes 17 auxiliary support columns and 1 fifth main support column, wherein a positioning area and 10 auxiliary support columns are sequentially arranged along the third direction close to the first main support column from the fifth main support column; The fourth support column group includes 18 auxiliary support columns, and a positioning area is provided between the fourth support column group and the third support column; The fifth support column group includes 14 auxiliary support columns, one of which is located within the line segment defined by the third main support column and the fourth main support column, near a trisection point of the third main support column, and the other is located near the midpoint of the line segment defined by the first main support column and the fourth main support column. The sixth support column group includes 7 auxiliary support columns, and one of the auxiliary support columns is located within the line segment determined by the third main support column and the fourth main support column, close to a trisection point of the fourth main support column.

11. The display panel according to claim 1, wherein, The ratio of the first preset distance to the second preset distance is between 1:5 and 4:

5.

12. The display panel according to claim 1, wherein, Within the second panel, there are adjacent main support columns and third auxiliary support columns arranged along a direction perpendicular to the third third direction, with a third preset distance between the center of the main support column and the center of the third auxiliary support column; The third preset distance is greater than the second preset distance.

13. The display panel according to claim 12, wherein, The first preset distance is 40 micrometers to 70 micrometers; The second preset distance is 80 micrometers to 120 micrometers; The third preset distance is 130 micrometers to 170 micrometers.

14. The display panel according to claim 1, wherein, The first panel includes multiple pixel regions, each pixel region including a transistor and a pixel electrode. The pixel electrode includes multiple first branches extending along a fourth direction and multiple second branches extending along a fifth direction, with the first branches connected to the second branches. The gate of the transistor is connected to the corresponding gate line, the source of the transistor is connected to the corresponding data line, and the drain of the transistor is connected to the corresponding pixel electrode. The data line includes an alternately arranged first part and a second part, the first part being connected to the second part, the first part extending along a fourth direction, the second part extending along a fifth direction, the first part and the first branch electrode being arranged along the first direction, and the second part and the second branch electrode being arranged along the first direction.

15. The display panel according to claim 14, wherein, In a direction perpendicular to the second panel, a portion of the main support column included in the second panel overlaps with the first branch electrode in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the main support column included in the second panel overlaps with the second branch electrode in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the data lines in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel at least partially overlaps with the grid lines in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the first support electrode in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the second branch electrode in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the data lines in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the grid lines in the first display panel; And / or, in a direction perpendicular to the second panel, a portion of the auxiliary support pillars included in the second panel overlaps with the transistors in the first display panel.

16. The display panel according to claim 14, wherein, Along the first direction, there is at least a gap of two adjacent pixel regions between two adjacent auxiliary support columns.

17. The display panel according to any one of claims 1 to 3, wherein, The multiple support columns in the second panel constitute multiple support column groups, and the support column group includes a first support column group and a second support column group that are alternately arranged along a first direction; Each first support column group includes a plurality of support columns arranged along the third direction, and each support column in the first support column group satisfies the following condition: the line connecting the center of the support column and the center of the support column closest to the support column extends along the third direction; Each second support column group includes a plurality of support columns arranged along the third direction, and each of the support columns in the second support column group satisfies the following condition: the line connecting the center of the support column and the center of the support column closest to the support column extends along the sixth direction; The angle between the sixth direction and the third direction is not equal to 0°, and the angle between the sixth direction and the first direction is equal to the angle between the third direction and the first direction.

18. The display panel according to claim 1, wherein, The second panel includes a first substrate and a second substrate disposed opposite to each other, and also includes a first electrode disposed on the first substrate and a second electrode disposed on the second substrate facing the side of the first substrate.

19. The display panel according to claim 18, wherein, A first polarizer is provided on the side of the second panel facing away from the first panel, and a second polarizer is provided on the side of the second panel facing the first panel. The polarization directions of the first polarizer and the second polarizer are the same.

20. The display panel according to claim 19, wherein, A third polarizer is provided on the side of the first panel facing the second panel, and a fourth polarizer is provided on the side of the first panel facing away from the second panel. The third polarizer and the second polarizer are the same polarizer. The polarization direction of the fourth polarizer is perpendicular to the polarization direction of the first polarizer.

21. A display device, wherein, include: The backlight module and the display panel as described in any one of claims 1 to 20, wherein both the first panel and the second panel are located on the light-emitting side of the backlight module.

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