Display panel, control method thereof, and display device

Abstract

The present invention proposes a display panel and a control method thereof and a display device, wherein the display panel comprises: a display area and a non-display area, wherein the non-display area comprises a hole-punching area, wherein the hole-punching area comprises: a substrate; a first electrode layer, wherein the first electrode layer is arranged on one side of the substrate; a second electrode layer, wherein the second electrode layer is arranged on the side of the first electrode layer away from the substrate, wherein at least one of the first electrode layer and the second electrode layer comprises a plurality of first electrodes arranged at intervals, and each first electrode is charged independently; a first liquid crystal layer, wherein the first liquid crystal layer is arranged on the side of the second electrode layer away from the first electrode layer, and the liquid crystal in the first liquid crystal layer is suitable for deflection according to the electric field between the first electrode layer and the second electrode layer; and a cover plate, wherein the cover plate is arranged on the side of the first liquid crystal layer away from the second electrode layer. Thus, the display panel can realize shooting at a maximum of 178° ultra-wide viewing angle, and at the same time, the shooting viewing angle can be narrowed to realize speaker tracking, i.e., image locking function.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular, to a display panel and a control method thereof, as well as a display device. Background Art

[0002] The front camera on the display panel in the related art can only achieve shooting at a viewing angle of about 120°, and cannot achieve shooting of scenes at a larger viewing angle.

[0003] Therefore, the current display panels need further improvement. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] In one aspect of the present invention, a display panel is proposed, comprising: a display area and a non-display area, wherein the non-display area includes a hole-punching area, wherein the hole-punching area includes: a substrate; a first electrode layer, wherein the first electrode layer is arranged on one side of the substrate; a second electrode layer, wherein the second electrode layer is arranged on the side of the first electrode layer away from the substrate, wherein the second electrode layer is arranged in direct correspondence with the first electrode layer, wherein at least one of the first electrode layer and the second electrode layer includes a plurality of first electrodes arranged at intervals, and each first electrode is charged independently; a first liquid crystal layer, wherein the first liquid crystal layer is arranged on the side of the second electrode layer away from the first electrode layer, wherein the liquid crystal molecules in the first liquid crystal layer are adapted to be deflected according to the electric field between the first electrode layer and the second electrode layer; and a cover plate, wherein the cover plate is arranged on the side of the first liquid crystal layer away from the second electrode layer. Thus, the display panel can realize 178° ultra-wide viewing angle shooting, and at the same time, it can also narrow the shooting viewing angle to realize speaker tracking, i.e., image locking function.

[0006] According to some embodiments of the present invention, the hole area includes a central area and a first annular area, the first annular area is arranged around the central area, the first electrode layer and the second electrode layer are at least located in the first annular area, and the orthographic projection of the first liquid crystal layer on the substrate is located inside the orthographic projection of the first electrode layer on the substrate.

[0007] According to some embodiments of the present invention, the first electrode layer and the second electrode layer are only located in the first annular area.

[0008] According to some embodiments of the present invention, the first electrode layer includes at least four first electrodes arranged in sequence and at intervals.

[0009] According to some embodiments of the present invention, the display panel further includes: a plurality of first wirings, the first wirings are arranged on a side of the first annular region away from the central region, and the plurality of first electrodes are connected to the plurality of first wirings in a one-to-one correspondence.

[0010] According to some embodiments of the present invention, the display panel also includes: a second annular area, the second annular area is located between the central area and the first annular area, the second annular area includes: a third electrode layer and a fourth electrode layer, the third electrode layer is arranged on the same layer as the first electrode layer, the fourth electrode layer is arranged on the same layer as the second electrode layer, at least one of the third electrode layer and the fourth electrode layer includes a plurality of second electrodes arranged at intervals, and each second electrode is independently charged; a second liquid crystal layer, the second liquid crystal layer is arranged on a side of the fourth electrode layer away from the substrate, and the third electrode layer and the fourth electrode layer are arranged in direct correspondence.

[0011] According to some embodiments of the present invention, the display panel further includes: a plurality of second wirings, the second wirings are arranged on a side of the first annular area away from the second annular area, and the plurality of second electrodes are connected to the plurality of second wirings in a one-to-one correspondence.

[0012] According to some embodiments of the present invention, a gap between two adjacent first electrodes and a gap between two adjacent second electrodes are staggered.

[0013] In another aspect of the present invention, a method for controlling the aforementioned display panel is proposed, comprising: inputting different first signals to a plurality of first electrodes respectively, and inputting a second signal to a second electrode layer, so that the liquid crystal molecules in the first liquid crystal layer are deflected in a direction away from or close to the hole-digging area. Thus, the deflection of the liquid crystal is adjusted by the change of the electric field between the first electrode and the second electrode, thereby realizing the camera's viewing angle expansion and positioning tracking functions.

[0014] According to some embodiments of the present invention, the display panel also includes: a third electrode layer and a fourth electrode layer, the third electrode layer and the first electrode layer are arranged in the same layer, the fourth electrode layer and the second electrode layer are arranged in the same layer, at least one of the third electrode layer and the fourth electrode layer includes a plurality of second electrodes arranged at intervals, and each second electrode is independently charged; a second liquid crystal layer, the second liquid crystal layer is arranged on the side of the fourth electrode layer away from the substrate, and the third electrode layer and the fourth electrode layer are arranged in direct correspondence; the method also includes: inputting different third signals to the plurality of second electrodes, respectively, and inputting a fourth signal to the fourth electrode layer, so that the liquid crystal molecules in the second liquid crystal layer are deflected in a direction away from or close to the hole area.

[0015] In another aspect of the present invention, a display device is provided, comprising the aforementioned display panel. Thus, the display device has all the features and advantages of the aforementioned display panel, which will not be described in detail here. In general, it has at least the advantages of being able to achieve wide-angle shooting and positioning tracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of the structure of the display panel is shown;

[0018] Figure 2 A schematic diagram showing the structure of a display panel in a hole-punching area according to an embodiment of the present invention;

[0019] Figure 3 A schematic diagram showing the principle of ultra-wide-angle shooting of the present invention is shown;

[0020] Figure 4 The effect diagram of the ultra-wide-angle shooting of the present invention is shown;

[0021] Figure 5 A schematic diagram showing the principle of the image locking function of the present invention;

[0022] Figure 6 A schematic diagram showing the partitioning of the hole digging area according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram of the structure in the hole-digging area of ​​one embodiment of the present invention is shown;

[0024] Figure 8 A schematic diagram showing the structure in the hole-digging area of ​​another embodiment of the present invention is shown;

[0025] Fig. 9 A schematic diagram showing the partitioning of the hole-digging area according to another embodiment of the present invention is shown;

[0026] Fig.10 A schematic diagram showing the structure of a display panel in a hole-punch area according to another embodiment of the present invention;

[0027] Fig.11 A schematic diagram showing the structure in the hole-digging area of ​​another embodiment of the present invention is shown;

[0028] Fig.12 A schematic diagram of the structure in the hole-digging area of ​​another embodiment of the present invention is shown.

[0029] Reference numerals:

[0030] 1: display panel; 1A: display area; 1B: hole area; 111: central area; 112: first annular area; 113: second annular area; 11: substrate; 121: first electrode layer; 1211: first pixel electrode; 122: second electrode layer; 123: third electrode layer; 1231: second pixel electrode; 124: fourth electrode layer; 141: first liquid crystal layer; 142: second liquid crystal layer; 140: liquid crystal; 15: cover plate; 161: first wiring; 162: second wiring; 17: isolation column; 18: sealant layer; 2: camera assembly. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are used. The reagents or instruments used that do not specify the manufacturer are all conventional products that can be obtained commercially.

[0032] The lenses used in display products in related technologies can be divided into small field of view lenses, standard lenses, wide-angle lenses, and ultra-wide-angle lenses according to the size of the field of view. Among them, the standard lens has a viewing angle of about 50°, which is the viewing angle that a person can see with one eye without moving the head and eyes, and the focal length is close to the diagonal length of the camera frame; the wide-angle lens has a viewing angle of more than 90°, which is suitable for shooting scenes that are close and large in range, and can deliberately exaggerate the foreground to show a strong sense of distance, that is, perspective. Since the wide-angle lens has a short focal length and a large viewing angle, it can capture a larger area of ​​scenery within a shorter shooting distance. However, the ultra-wide-angle lens with the widest viewing angle can only reach 120°.

[0033] In one aspect of the present invention, a display panel 1 is provided. Figure 1 The display panel 1 includes: a display area 1A and a non-display area, wherein the non-display area includes a hole-punch area 1B. Figure 2The hole-digging area 1B includes: a substrate 11; a first electrode layer 121, which is arranged on one side of the substrate 11; a second electrode layer 122, which is arranged on the side of the first electrode layer 121 away from the substrate 11, and the second electrode layer 122 is arranged in direct correspondence with the first electrode layer 121, and the "direct correspondence" referred to here means that the positive projection of the first electrode layer 121 on the substrate 11 falls within the positive projection range of the second electrode layer 122 on the substrate 11, and at least one of the first electrode layer 121 and the second electrode layer 122 includes a plurality of first electrodes arranged at intervals, and each of the first electrodes is charged independently; a first liquid crystal layer 141, which is arranged on the side of the second electrode layer 122 away from the first electrode layer 121, and the liquid crystal 140 in the first liquid crystal layer 141 is suitable for deflection according to the electric field between the first electrode layer 121 and the second electrode layer 122; a cover plate 15, which is arranged on the side of the first liquid crystal layer 141 away from the second electrode layer 122. Specifically, the hole area 1B is provided with a camera assembly correspondingly, the first electrode layer 121 can be a pixel electrode, and the second electrode layer 122 can be a common electrode; or the first electrode layer 121 is a common electrode, and the second electrode layer 122 is a pixel electrode. A plurality of slits can be formed on the second electrode layer 122 to control the deflection of the liquid crystal through the edge electric field of the pixel electrode and the common electrode. The following is an example of the first electrode layer 121 being a pixel electrode and the second electrode layer 122 being a common electrode: the first electrode layer 121 includes a plurality of first pixel electrodes 1211 arranged at intervals, and the first pixel electrodes 1211 and the common electrode are both made of transparent materials. Since each first pixel electrode 1211 is charged independently, the current of each first pixel electrode 1211 can be different, thereby forming different electric fields between the first pixel electrodes 1211 and between the first pixel electrode 1211 and the common electrode, thereby causing the liquid crystal 140 to deflect at different angles. Therefore, the display panel 1 can realize ultra-wide-angle shooting, and can realize ultra-wide-angle shooting with a maximum viewing angle range of up to 178°. At the same time, it can also narrow the shooting viewing angle to realize speaker tracking and image locking functions.

[0034] The principle by which the display panel 1 can achieve the above beneficial effects is described in detail below:

[0035] When not shooting, the liquid crystal 140 in the display panel 1 can be arranged perpendicular to the display panel 1 (refer to Figure 2), external light can penetrate the hole area 1B without affecting the normal display of the display panel 1. When it is necessary to take a picture, the multiple first pixel electrodes 1211 can be charged independently, so that an electric field is formed between the multiple first pixel electrodes 1211 and between the first pixel electrodes 1211 and the common electrode, and the liquid crystal 140 deflects in a direction away from the hole area 1B according to the strength of the electric field (refer to Figure 3 ), when external light is incident on the liquid crystal 140, the light is refracted by adjusting the deflection angle of the liquid crystal 140 in the hole area 1B, so that the camera range outside the viewing angle of the camera assembly 2 enters the visible range, so as to achieve a wide-angle shooting effect (reference Figure 4 In addition, the liquid crystal 140 can also be deflected toward the hole area 1B according to the electric field strength (refer to Figure 5 ), when external light is incident on the liquid crystal 140, the deflection angle of the liquid crystal 140 in the hole area 1B is adjusted to make the light totally reflected, thereby greatly reducing the shooting angle of view and achieving the effect of locking part of the area. When the locked area needs to be moved, the deflection of the liquid crystal 140 in different areas can be adjusted (for example, the liquid crystal 140 in some areas is deflected away from the hole area 1B, and the liquid crystal 140 in some areas is deflected toward the hole area 1B), so as to achieve total reflection of some areas and wide-angle shooting of some areas to perform mobile locking, thereby realizing the speaker tracking and image locking functions.

[0036] According to some embodiments of the present invention, reference Figure 6 , the hole-digging area 1B includes a central area 111 and a first annular area 112, the first annular area 112 is arranged around the central area 111, the first electrode layer 121 and the second electrode layer 122 are at least located in the first annular area 112, and the orthographic projection of the first liquid crystal layer 141 on the substrate 11 is located inside the orthographic projection of the first electrode layer 121 on the substrate 11. Specifically, the shape of the hole-digging area 1B is not particularly limited, for example, it can be a circle, a square or other special shapes. The following description takes the hole-digging area 1B as a circle as an example.

[0037] According to some specific embodiments of the present invention, Figure 7 The first electrode may be a first pixel electrode 1211, the second electrode may be a common electrode, the first electrode layer 121 and the second electrode layer 122 may be located in the first annular region 112 and the central region 111, and correspondingly, the first liquid crystal layer 141 is also located in the first annular region 112 and the central region 111, referring to Figure 6 , only the position of the first electrode layer 121 in the hole-punching area 1B is shown. Therefore, when shooting, the signal size of the first pixel electrode 1211 in the hole-punching area 1B can be controlled to control the deflection angle of the liquid crystal 140 to achieve ultra-wide-angle shooting up to 178°.

[0038] According to some other specific embodiments of the present invention, Figure 8 , the first electrode layer 121 and the second electrode layer 122 may also be located only in the first annular area 112. Specifically, the first electrode may be a first pixel electrode 1211, the second electrode layer may be a common electrode, the first annular area 112 is provided with a substrate 11, a first electrode layer 121, a second electrode layer 122, a first liquid crystal layer 141 and a cover plate 15, and the central area 111 may be provided with only a substrate 11 and a cover plate 15. When performing ordinary shooting, there is no need to charge the first pixel electrode 1211, the liquid crystal 140 may be arranged perpendicular to the display panel 1, and the external light within the viewing angle range may enter the camera through the first annular area 112 and the central area 111 for shooting; when performing ultra-wide-angle shooting, the first pixel electrode 1211 is charged, and the deflection angle of the liquid crystal 140 is controlled by adjusting the signal size in the first pixel electrode 1211, so that the external light is refracted when it is incident on the liquid crystal 140, and an ultra-wide-angle shooting of up to 178° is achieved. Thus, the first pixel electrode 121 is charged only during ultra-wide-angle shooting, and the influence of the color of the first liquid crystal layer 141 on the color of the captured picture can be reduced during normal shooting. It should be noted that, since the first liquid crystal layer 141 itself is slightly yellow, the color difference of the picture taken during ultra-wide-angle shooting can be compensated by the color of the picture taken normally, so that the color of the picture taken at a wide angle is more consistent with the color observed by the human eye.

[0039] According to some embodiments of the present invention, the first electrode layer 121 includes at least four first electrodes arranged in sequence. For example, the first electrode layer 121 may include 4, 6, 8, 10, or 12 first electrodes arranged in sequence. The more first electrodes there are, the more independent charging of each first electrode, and the liquid crystal 140 in the first liquid crystal layer 141 can be deflected according to the multi-dimensional electric field, so that light with a larger viewing angle enters the camera assembly 2, thereby improving the effect of ultra-wide-angle shooting.

[0040] Specifically, refer to Figure 7, when the hole-digging area 1B is circular, and the first electrode layer 121, the second electrode layer 122 and the first liquid crystal layer 141 are located in the first annular area 112 and the central area 111, the two diameters of the circular hole-digging area 1B divide the hole-digging area 1B into four areas, and the four first pixel electrodes 1211 are respectively formed in the four areas and have gaps between each other. According to some specific embodiments of the present invention, the four areas of the hole-digging area 1B are the same (equivalent to two mutually perpendicular diameters dividing the hole-digging area 1B into four areas), and the four first pixel electrodes 1211 are respectively formed in the four areas. As a result, external light can enter the camera range of the camera through the refraction of light by the liquid crystal 140 at an ultra-large angle, thereby increasing the camera viewing angle, so that it can reach a maximum shooting angle of 178°. According to some specific embodiments of the present invention, by adjusting the current size of the four first pixel electrodes 1211, the deflection angle of the liquid crystal 140 can be controlled to achieve ultra-wide-angle shooting in both horizontal and vertical directions, increasing the possibility of full-view framing.

[0041] When the hole area 1B is circular, refer to Figure 8 , and when the first electrode layer 121, the second electrode layer 122 and the first liquid crystal layer 141 are located in the first annular area 112, the two diameters of the circle divide the first annular area 112 into four areas, and the four first pixel electrodes 1211 are respectively formed in the four areas and have gaps between them. According to some specific embodiments of the present invention, the four areas of the first annular area 112 are the same (equivalent to the two mutually perpendicular diameters dividing the first annular area 112 into four areas), and the four first pixel electrodes 1211 are respectively formed in the four areas. As a result, the symmetrically distributed first pixel electrodes 1211 can allow external light to enter the camera range of the camera assembly 2 at an ultra-large angle through the refraction of light by the liquid crystal 140, thereby increasing the camera viewing angle, so that it can reach a maximum shooting angle of 178°. At the same time, since the central area 111 of the hole area 1B is not provided with the first electrode layer 121, the second electrode layer 122 and the first liquid crystal layer 141, the central area 111 can be used for normal shooting, and the ultra-wide-angle shot pictures can be algorithmically compensated by the colors of the normally shot pictures to reduce the chromatic aberration caused by the ultra-wide-angle shooting.

[0042] According to some embodiments of the present invention, reference Figure 7, the display panel 1 may also include: a plurality of first wirings 161, the first wirings 161 are arranged on a side of the first annular area 112 away from the central area 111, and a plurality of the first electrodes are connected to the plurality of the first wirings 161 in a one-to-one correspondence. It should be noted that the "a plurality of the first electrodes are connected to the plurality of the first wirings 161 in a one-to-one correspondence" referred to here means: a first pixel electrode 1211 is only connected to one first wiring 161, and any two first pixel electrodes 1211 do not share a first wiring 161, thereby, the magnitude of the current in each first wiring 161 can be independently controlled to control the electric field between the first pixel electrodes 1211 and between the first pixel electrode 1211 and the common electrode, thereby controlling the deflection angle of the liquid crystal 140, so that the external light can enter the camera assembly 2 at a super large angle through the refraction of the light by the liquid crystal 140, thereby increasing the camera assembly 2 The viewing angle. Meanwhile, the first wiring 161 is disposed on a side of the first annular area 112 away from the central area 111 , so as to avoid interference of the first wiring 161 on the shooting area.

[0043] According to some embodiments of the present invention, when only one first annular area 112 is provided from the center of the hole area 1B to the edge of the hole area 1B, Figure 6 and Figure 8 For example, although the liquid crystals 140 in different areas can achieve different angles of deflection, the liquid crystals 140 corresponding to the first pixel electrodes 1211 in one area can only deflect at the same angle, and there is a certain blind area at the junction of the central area 111 and the first annular area 112. When external light irradiates the junction of the central area 111 and the first annular area 112, it may not be incident on the camera assembly 2. At this time, refer to Fig. 9 The display panel 1 may further include: a second annular area 113, wherein the second annular area 113 is located between the central area 111 and the first annular area 112, Fig.10, the second annular area 113 includes: a third electrode layer 123 and a fourth electrode layer 124, the third electrode layer 123 and the first electrode layer 121 are arranged in the same layer, the fourth electrode layer 124 and the second electrode layer 122 are arranged in the same layer, at least one of the third electrode layer 123 and the fourth electrode layer 124 includes a plurality of second electrodes arranged at intervals, and each second electrode is charged independently; a second liquid crystal layer 142, the second liquid crystal layer 142 is arranged on the side of the fourth electrode layer 124 away from the substrate 11, and the third electrode layer 123 and the fourth electrode layer 124 are arranged in direct correspondence, and the "direct correspondence" referred to here means that the positive projection of the third electrode layer 123 on the substrate 11 is within the positive projection range of the fourth electrode layer 124 on the substrate 11. Specifically, when the first electrode layer 121 and the third electrode layer 123 are pixel electrodes, and the second electrode layer 122 and the fourth electrode layer 124 are common electrodes, the first electrode is the first pixel electrode 1211, and the second electrode is the second pixel electrode 1231. Reference Fig.11 The first annular area 112 may include four areas of the same area, and the four first pixel electrodes 1211 are respectively arranged in the four areas and have gaps between them; the second annular area 113 may also include four areas of the same area, and the four second pixel electrodes 1231 are respectively formed in the four areas and have gaps between them. Thus, the liquid crystals 140 in the first annular area 112 and the second annular area 113 may be deflected at different angles, so that more external light is incident on the camera assembly 2, so as to achieve ultra-wide-angle shooting.

[0044] According to some embodiments of the present invention, reference Fig.11 , the display panel 1 may also include: a plurality of second wirings 162, the second wirings 162 are arranged on the side of the first annular area 112 away from the second annular area 113, and the plurality of second electrodes are connected to the plurality of second wirings 162 in a one-to-one correspondence. It should be noted that the "multiple second electrodes are connected to the plurality of second wirings 162 in a one-to-one correspondence" referred to here means that: one second electrode is only connected to one second wiring 162, and any two second electrodes do not share a second wiring 162, thereby, the magnitude of the current in each second wiring 162 can be independently controlled to control the electric field between the second electrodes and between the second electrode and the fourth electrode layer, thereby controlling the deflection angle of the liquid crystal 140, so that the external light can enter the camera assembly 2 at a super large angle through the refraction of the light by the liquid crystal 140, thereby increasing the camera assembly 2 The viewing angle. At the same time, the second wiring 162 is arranged on the side of the first annular area 112 away from the second annular area 113, which can avoid the interference of the second wiring 162 on the shooting area.

[0045] According to some embodiments of the present invention, reference Fig.11The gap between two adjacent first electrodes and the gap between two adjacent second electrodes are staggered. Thus, it is convenient to arrange the first wiring 161 and the second wiring 162, and the area occupied by the first wiring 161 and the second wiring 162 is reduced.

[0046] According to some embodiments of the present invention, reference Fig.11 and Fig.12 The display panel 1 may further include a spacer column 17 , and the spacer column 17 may be disposed in the first liquid crystal layer 141 and the second liquid crystal layer 142 .

[0047] According to some embodiments of the present invention, reference Fig.10 The display panel 1 may further include a sealant layer 18 , which is disposed between the central area 111 and the second annular area 113 to seal the second liquid crystal layer 142 to prevent the liquid crystal 140 from entering the central area 111 .

[0048] In another aspect of the present invention, a method for controlling the aforementioned display panel 1 is proposed, comprising: inputting different first signals to multiple first electrodes respectively, and inputting a second signal to the second electrode layer 122, so that the liquid crystal 140 in the first liquid crystal layer 141 is deflected in a direction away from or close to the hole area 1B.

[0049] Specifically, when the hole-digging area 1B includes the first annular area 112 and the central area 111, the display panel 1 includes a first electrode layer 121, a second electrode layer 122 and a first liquid crystal layer 141. The first electrode layer 121 may be a pixel electrode layer, and the pixel electrode layer includes four first pixel electrodes 1211 arranged at intervals (refer to Figure 7 or Figure 8), the second electrode layer 122 can be a common electrode layer. When shooting at an ultra-wide angle, the four first pixel electrodes 1211 are charged through the four first wires 161 (taking a positive voltage as an example). The currents in the four first wires 161 are different in magnitude, so as to form a multi-dimensional electric field between the four first pixel electrodes 1211 and between the first pixel electrodes 1211 and the common electrode, so that the liquid crystal 140 is deflected at different angles. When the liquid crystal 140 is deflected in a direction away from the hole-digging area 1B according to the strength of the electric field, the external light is incident on the liquid crystal 140 and refracted, thereby making the camera range outside the viewing angle of the camera assembly 2 enter the visible range, so as to achieve ultra-wide-angle shooting; the first pixel electrodes 161 are charged with a positive voltage (taking a positive voltage as an example). The currents in the four first wires 161 are different in magnitude, so as to form a multi-dimensional electric field between the four first pixel electrodes 1211 and between the first pixel electrodes 1211 and the common electrode, so as to make the liquid crystal 140 deflect at different angles. When the electrode 1211 is negatively charged and the liquid crystal 140 is deflected toward the direction of the hole area 1B according to the electric field strength, the external light is incident on the liquid crystal 140 and is totally reflected, thereby greatly reducing the shooting angle of view, achieving the effect of locking part of the area. When the locked area needs to be moved, the deflection of the liquid crystal 140 in different areas can be adjusted (for example, the liquid crystal 140 in some areas is deflected in the direction away from the hole area 1B, and the liquid crystal 140 in some areas is deflected toward the hole area 1B), so as to achieve total reflection of some areas and wide-angle shooting of some areas to perform mobile locking, thereby realizing the speaker tracking and image locking functions.

[0050] According to some embodiments of the present invention, reference Fig.12The display panel 1 may further include: a third electrode layer 123 and a fourth electrode layer 124, wherein the third electrode layer 123 is arranged in the same layer as the first electrode layer 121, and the fourth electrode layer 124 is arranged in the same layer as the second electrode layer 122, and the third electrode layer 123 includes a plurality of second electrodes arranged at intervals, and each second electrode is charged independently; a second liquid crystal layer 142, wherein the second liquid crystal layer 142 is arranged on a side of the fourth electrode layer 124 away from the substrate 11, and the third electrode layer 123 is arranged correspondingly to the fourth electrode layer 124; the method further includes: inputting different third signals to the plurality of second electrodes respectively, and inputting a fourth signal to the fourth electrode layer 124, so that the liquid crystal 140 molecules in the second liquid crystal layer 142 are deflected in a direction away from or close to the hole area 1B. Specifically, when the hole-digging area 1B includes the substrate 11, the first annular area 112, the second annular area 113 and the central area 111, the display panel 1 includes a first electrode layer 121, a second electrode layer 122, a first liquid crystal layer 141, a third electrode layer 123, a fourth electrode layer 124, a second liquid crystal layer 142 and a cover plate 15. The first electrode layer 121 and the third electrode layer 123 may be pixel electrodes, and the second electrode layer 122 and the fourth electrode layer 124 may be common electrodes. When shooting at an ultra-wide angle, the multiple first pixel electrodes 1211 in the first annular area 112 are charged through the multiple first wires 161, and the multiple second pixel electrodes 1231 in the second annular area 113 are charged through the multiple second wires 162. The currents in the four first wires 161 are different in magnitude, and the currents in the four second wires 162 are different in magnitude, so as to form a multi-dimensional electric field between the first pixel electrodes 1211, between the second pixel electrodes 1231, between the first pixel electrode 1211 and the common electrode, and between the second pixel electrode 1231 and the common electrode, so that the liquid crystal 140 in the first annular area 112 and the second annular area 113 are deflected at different angles, so that more external light is incident on the camera assembly 2 to achieve ultra-wide-angle shooting.

[0051] In another aspect of the present invention, a display device is provided, comprising the aforementioned display panel 1. Thus, the display device has all the features and advantages of the aforementioned display panel 1, which will not be described in detail here. In general, it has at least the advantages of being able to achieve wide-angle shooting and positioning tracking.

[0052] According to some embodiments of the present invention, the display device may include a screen that uses a liquid crystal display (LCD) for display, such as a mobile phone display (MBL) and a flat panel display (TPC) that use a front camera. As a result, it is more convenient to shoot a larger field of view, so that the area occupied by the portrait in the field of view is relatively smaller, which can simplify the post-photographing process to a certain extent. In addition, it is also suitable for products such as electronic whiteboards and spliced ​​displays, ensuring that functions such as panoramic shooting and speaker tracking can be achieved in scenes such as meetings / teaching without adding auxiliary products.

[0053] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that: include: The display area and the non-display area include a hole-punch area, the hole-punch area is provided with a camera assembly, and the hole-punch area includes: substrate; a first electrode layer, wherein the first electrode layer is disposed on one side of the substrate; a second electrode layer, the second electrode layer being arranged on a side of the first electrode layer away from the substrate, the second electrode layer being arranged directly corresponding to the first electrode layer, at least one of the first electrode layer and the second electrode layer comprising a plurality of first electrodes arranged at intervals, each of the first electrodes being independently charged; a first liquid crystal layer, wherein the first liquid crystal layer is arranged on a side of the second electrode layer away from the first electrode layer, and liquid crystal molecules in the first liquid crystal layer are adapted to be deflected according to an electric field between the first electrode layer and the second electrode layer; a cover plate, the cover plate being arranged on a side of the first liquid crystal layer away from the second electrode layer; The hole-digging area includes a central area and a first annular area, and the first annular area is arranged around the central area; The first electrode layer and the second electrode layer are at least located in the first annular area, and the orthographic projection of the first liquid crystal layer on the substrate is located inside the orthographic projection of the first electrode layer on the substrate; A plurality of first wirings, wherein the first wirings are arranged on a side of the first annular area away from the central area, and the plurality of first electrodes are connected to the plurality of first wirings in a one-to-one correspondence; a second annular area, the second annular area being located between the central area and the first annular area, the second annular area comprising a plurality of second electrodes; The second annular region comprises: a third electrode layer and a fourth electrode layer, wherein the third electrode layer is disposed in the same layer as the first electrode layer, and the fourth electrode layer is disposed in the same layer as the second electrode layer, and at least one of the third electrode layer and the fourth electrode layer comprises a plurality of second electrodes disposed at intervals, and each of the second electrodes is independently charged; a second liquid crystal layer, wherein the second liquid crystal layer is arranged on a side of the fourth electrode layer away from the substrate, and the third electrode layer is arranged correspondingly to the fourth electrode layer; a plurality of second wirings, wherein the second wirings are arranged on a side of the first annular region away from the second annular region, and the plurality of second electrodes are connected to the plurality of second wirings in a one-to-one correspondence; The gap between two adjacent first electrodes and the gap between two adjacent second electrodes are staggered.

2. The display panel according to claim 1, characterized in that: The first electrode layer and the second electrode layer are only located in the first annular area.

3. The display panel according to claim 1, characterized in that: The first electrode layer includes at least four first electrodes which are arranged in sequence and at intervals.

4. A method for controlling the display panel according to any one of claims 1 to 3, characterized in that: include: Different first signals are input to the plurality of first electrodes respectively, and a second signal is input to the second electrode layer, so that the liquid crystal molecules in the first liquid crystal layer are deflected in a direction away from or close to the hole-digging area.

5. The method according to claim 4, characterized in that The method further comprises: Different third signals are input to the plurality of second electrodes respectively, and a fourth signal is input to the fourth electrode layer, so that the liquid crystal molecules in the second liquid crystal layer are deflected in a direction away from or close to the hole-digging area.

6. A display device, characterized in that: A display panel comprising any one of claims 1 to 3.

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