Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a color film substrate and an array substrate, the color film substrate comprises a first shading block, and the array substrate comprises a second shading block; the projection of the first shading block and the projection of the second shading block on the array substrate are overlapped. Therefore, through the upper and lower layers of shading blocks respectively positioned on the color film substrate and the array substrate, an interference effect of a squint angle can be formed during display, and a peep-proof effect is provided.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] As electronic products are increasingly used, privacy protection has become an issue that cannot be ignored. In particular, mobile phones and laptops are associated with a lot of personal information, and once leaked, the consequences are serious. At present, the most important means of anti-peeping is to apply blinds on the outside. Although it is simple and convenient, it seriously affects the visual effect and has moiré. Switchable anti-peeping is also being developed, but there are still shortcomings such as deterioration of the visual effect, increased cost, and increased thickness and weight. Summary of the invention

[0003] Embodiments of the present application provide a display panel and a display device to solve the technical problem of poor anti-peeping effect.

[0004] According to a first aspect of an embodiment of the present application, a display panel is provided, which includes a color filter substrate and an array substrate, the color filter substrate includes a first shading block, and the array substrate includes a second shading block; the projections of the first shading block and the second shading block on the array substrate overlap.

[0005] In a possible implementation manner, a color resist and a black matrix are disposed on the color filter substrate, and the first light shielding block is formed by expanding at least one black matrix on the color filter substrate.

[0006] In a possible implementation manner, an area of ​​the first light-shielding block is greater than or equal to an area of ​​the second light-shielding block.

[0007] In a possible implementation, when the area of ​​the first light shielding block is greater than the area of ​​the second light shielding block, the area difference between the first light shielding block and the second light shielding block is related to the anti-peeping angle of the display device to which the display panel is applied.

[0008] In a possible implementation manner, the first light shielding block and the second light shielding block have the same shape, and the second light shielding block is a ring-shaped structure.

[0009] In a possible embodiment, the display panel also includes: a spacer arranged between the color filter substrate and the array substrate; the first shading block and the projection of the spacer on the color filter substrate overlap, and a wiring space is opened at the overlapping position; the second shading block and the projection of the spacer on the array substrate overlap, and a wiring space is opened at the overlapping position.

[0010] In a possible implementation manner, the width of the wiring space is greater than the line width of the gate drive signal line and / or the data signal line in the display panel.

[0011] According to a second aspect of an embodiment of the present application, a display device is provided, comprising a driving circuit and a display panel as described in any one of the first aspects, wherein the driving circuit drives the display panel to display a picture.

[0012] In a possible implementation manner, the number of first light-shielding blocks in the display device is greater than or equal to the number of second light-shielding blocks.

[0013] In a possible embodiment, the display device is divided into a first area and a second area; the display panel in the first area is the display panel described in any one of the first aspects; the display panel in the second area is not provided with the first shading block and the second shading block.

[0014] The embodiment of the present application proposes a display panel and a display device, wherein the display panel includes a color filter substrate and an array substrate, wherein the color filter substrate includes a first light shielding block, and the array substrate includes a second light shielding block; the projections of the first light shielding block and the second light shielding block on the array substrate overlap. In this way, through the two layers of light shielding blocks aligned up and down, the vertical overlap of the two light shielding blocks in the front-view scene will not have a greater impact on the picture display, while in the oblique scene, the two light shielding blocks can overlap at the oblique angle to block the divergence of light to the oblique angle, thereby generating an oblique interference effect, thereby providing an anti-peeping effect at the oblique angle, and there is no need to add an additional blind film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0018] Figure 3 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0019] Figure 4 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0020] Figure 5 is a schematic diagram of an anti-peeping display device provided in an embodiment of the present application;

[0021] Figure 6It is a schematic diagram of an anti-peeping effect of a display device provided in an embodiment of the present application.

[0022] Description of Reference Numerals

[0023] 1. First shading block; 2. Second shading block; 3. Color filter substrate; 4. Array substrate; 5. Spacer; 6. Routing space. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In this embodiment, a display panel is provided. Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application. Figure 1 As shown, the display panel includes a color filter substrate 3 and an array substrate 4, the color filter substrate 3 includes a first shading block 1, and the array substrate 4 includes a second shading block 2; the projections of the first shading block 1 and the second shading block 2 on the array substrate 4 overlap.

[0027] In this embodiment, if Figure 2The schematic diagram of the display panel is shown, the color film substrate 3 can be a color filter (Color Filter, CF), and the array substrate 4 can be a thin film transistor (Thin Film Transistor, TFT) layer. In a display panel, the number of the first light shielding blocks 1 is equal to the number of the second light shielding blocks 2, or the number of the first light shielding blocks 1 is greater than the number of the second light shielding blocks 2.

[0028] In one embodiment, the color filter substrate 3 is located above the array substrate 4, and a liquid crystal layer etc. may be included between the color filter substrate 3 and the array substrate 4. Projection may refer to projection along a vertical direction, and overlapping projections may refer to at least partial overlap of projections.

[0029] In one embodiment, the first shading block 1 is disposed on the color filter substrate 3 , for example, the upper surface of the first shading block 1 is at the same level as the upper surface of the color filter substrate 3 , or the upper surface of the first shading block 1 is higher than the upper surface of the color filter substrate 3 .

[0030] In one embodiment, the second shading block 2 is disposed on the array substrate 4. For example, the upper surface of the second shading block 2 is on the same horizontal plane as the upper surface of the array substrate 4, or the upper surface of the second shading block 2 is higher than the upper surface of the array substrate 4.

[0031] In one embodiment, the projections of the first light shading block 1 and the second light shading block 2 on the array substrate 4 overlap, which may refer to the first light shading block 1 and the second light shading block 2 being aligned, for example, the central axes of the first light shading block 1 and the second light shading block 2 coincide, or, the center line of the first light shading block 1 and the second light shading block 2 is perpendicular to the horizontal plane, etc.

[0032] In one embodiment, the areas of the first light shielding block 1 and the second light shielding block 2 may be the same or different. Exemplarily, the first light shielding block 1 and the second light shielding block 2 are the same in at least one of shape, size and structure.

[0033] In one embodiment, the first light shielding block 1 and / or the second light shielding block 2 may be circular, rectangular, hexagonal or other shapes.

[0034] In one embodiment, when the display panel includes a plurality of first light shielding blocks 1, the number of second light shielding blocks 2 in the display panel may be equal to or less than the number of first light shielding blocks 1. When the number of second light shielding blocks 2 in the display panel is equal to the number of first light shielding blocks 1, each first light shielding block 1 may be aligned with one second light shielding block 2.

[0035] In one embodiment, during the display process, the positions of the first shading block 1 and the second shading block 2 overlap to form interference at a certain viewing angle, thereby generating moiré patterns and thus achieving an interference visual effect to prevent peeping. For example, the viewing angle may be an oblique viewing angle, such as 25° to 70°.

[0036] In this way, by aligning the two layers of shading blocks up and down, the vertical overlap of the two shading blocks will not have a greater impact on the picture display in the straight-view scene, while in the oblique-view scene, the two shading blocks can overlap at the oblique-view angle to block the divergence of light toward the oblique-view angle, produce an oblique-view interference effect, and thus provide an anti-peeping effect at the oblique-view angle.

[0037] In some embodiments, a color resist and a black matrix are disposed on the color filter substrate 3 , and the first light shielding block 1 is formed by expanding at least one black matrix on the color filter substrate 3 .

[0038] In one embodiment, a black matrix (BM) is located between the color resists on the color filter substrate 3 , for example, there is a black matrix between the red color resist and the blue color resist, between the blue color resist and the green color resist, etc.

[0039] In one embodiment, the black matrix expands outward to form the first light shielding block 1, which may refer to the black matrix expanding outward to form a first light shielding block 1 of a certain size. The size of the first light shielding block 1 may be determined according to at least one of the required anti-peeping angle, the size of the color filter substrate 3, and the number of color blocks.

[0040] In one embodiment, the black matrix expands outward to form the first shading block 1, wherein the black matrix expands outward along the length direction of the color filter substrate 3 larger than the black matrix expands outward along the width direction of the color filter substrate 3, thereby reducing the impact on the frontal visual effect of the color filter substrate 3.

[0041] In one embodiment, the second light shielding block 2 is formed at a corresponding position of the first light shielding block 1 on the array substrate 4. For example, the second light shielding block 2 is exactly the same as the first light shielding block 1, or the position center of the second light shielding block 2 is the same as the position center of the first light shielding block 1.

[0042] In this way, the black matrix on the color filter substrate 3 is expanded to form the first shading block 1, which can not only ensure the shading effect of the shading block, but also avoid adding a new shading layer, utilize the original structure, reduce production costs and reduce product thickness.

[0043] In some embodiments, the area of ​​the first light-shielding block 1 is greater than or equal to the area of ​​the second light-shielding block 2 .

[0044] In one embodiment, when the area of ​​the first light-shielding block 1 is larger than the area of ​​the second light-shielding block 2, the area of ​​the second light-shielding block 2 may be no less than a preset proportion of the area of ​​the first light-shielding block 1. For example, the preset proportion may be 50%, etc., to avoid the second light-shielding block 2 being too small, resulting in poor anti-peeping effect.

[0045] In one embodiment, the shape of the first light shielding block 1 may be the same as that of the second light shielding block 2, and the area of ​​the first light shielding block 1 is greater than or equal to the area of ​​the second light shielding block 2. For example, when the area of ​​the first light shielding block 1 is greater than the area of ​​the second light shielding block 2, the second light shielding block 2 may be obtained by reducing the first light shielding block 1 according to a predetermined ratio.

[0046] In one embodiment, the area of ​​the first light shading block 1 is larger than the area of ​​the second light shading block 2, which may mean that the length of the first light shading block 1 is the same as that of the second light shading block 2, and the width of the first light shading block 1 is larger than the width of the second light shading block 2, or the width of the first light shading block 1 is the same as that of the second light shading block 2, and the length of the first light shading block 1 is larger than the length of the second light shading block 2, etc.

[0047] For example, the second light shielding block 2 is a hexagon with a width of 18 μm and a length of 13 μm, and the first light shielding block 1 can be a hexagon with a width of 18 μm and a length of 19 to 26 μm, that is, the area difference between the first light shielding block 1 and the second light shielding block 2 is 108 to 234 μm. 2 When the display device is turned off, the anti-peep angle is 25° to 70°.

[0048] In one embodiment, when the display panel includes a plurality of first light shielding blocks 1 , the area of ​​each first light shielding block 1 is greater than or equal to the area of ​​the second light shielding block 2 to which the first light shielding block 1 is aligned.

[0049] In this way, the area of ​​the lower shading block will not exceed the area of ​​the upper shading block, thereby reducing the blocking of light by the lower shading block when the light is emitted from bottom to top, and reducing the impact on the normal vision effect.

[0050] In some embodiments, when the area of ​​the first light shielding block 1 is greater than the area of ​​the second light shielding block 2 , the area difference between the first light shielding block 1 and the second light shielding block 2 is related to the anti-peeping angle of the display device to which the display panel is applied.

[0051] In one embodiment, the display device applied by the display panel may refer to a display device including the display panel. For example, the display device may be a display panel or a display screen.

[0052] In one embodiment, the anti-peeping angle may be 25° to 70°. Here, the anti-peeping angle may refer to the viewing angle that produces an anti-peeping effect on the squint display panel, that is, the angle at which the first light shielding block 1 and the second light shielding block 2 produce squint interference.

[0053] In one embodiment, the area difference between the first light shading block 1 and the second light shading block 2 is related to the anti-peep angle of the display device applied to the display panel, and may include: the widths of the first light shading block 1 and the second light shading block 2 are the same, and the length difference between the first light shading block 1 and the second light shading block 2 is related to the anti-peep angle of the display device applied to the display panel; or, the lengths of the first light shading block 1 and the second light shading block 2 are the same, and the width difference between the first light shading block 1 and the second light shading block 2 is related to the anti-peep angle of the display device applied to the display panel, etc.

[0054] In one embodiment, the area difference between the first light shielding block 1 and the second light shielding block 2 is related to the anti-peeping angle of the display device applied to the display panel, which may include: the area difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle of the display device applied to the display panel. For example, the first light shielding block 1 and the second light shielding block 2 have the same width, and the length difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle; or, the first light shielding block 1 and the second light shielding block 2 have the same length, and the width difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle, etc.

[0055] In one embodiment, the length difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle, which may mean that the first light shielding block 1 and the second light shielding block 2 are aligned along one end of the length, and the length difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle.

[0056] In one embodiment, the width difference between the first light shading block 1 and the second light shading block 2 is positively correlated with the anti-peeping angle, which may mean that the first light shading block 1 and the second light shading block 2 are aligned along one end of the width, and the width difference between the first light shading block 1 and the second light shading block 2 is positively correlated with the anti-peeping angle.

[0057] For example, the greater the length difference or width difference between the first shading block 1 and the second shading block 2, and the greater the area difference between the first shading block 1 and the second shading block 2, the greater the interference can be generated at a larger oblique viewing angle, and the greater the anti-peeping angle of the display device.

[0058] For example, the width D is 18 μm, the length of the second light shielding block 2 can be 13 μm, the length of the first light shielding block 1 can be 19-26 μm, and so on.

[0059] In one embodiment, the area difference between the first light shielding block 1 and the second light shielding block 2 is related to the anti-peeping angle of the display device applied to the display panel, and may include: the area difference between the first light shielding block 1 and the second light shielding block 2, and the distance between the first light shielding block 1 and the second light shielding block 2 are positively correlated with the anti-peeping angle of the display device. For example, when the distance between the first light shielding block 1 and the second light shielding block 2 remains unchanged, the area difference between the first light shielding block 1 and the second light shielding block 2 is positively correlated with the anti-peeping angle; when the area difference between the first light shielding block 1 and the second light shielding block 2 remains unchanged, the distance between the first light shielding block 1 and the second light shielding block 2 is negatively correlated with the anti-peeping angle.

[0060] For example, the second shading block 2 is a hexagon with a width of 18 μm and a length of 13 μm, and the first shading block 1 can be a hexagon with a width of 18 μm and a length of 19 to 26 μm, that is, the area difference between the first shading block 1 and the second shading block 2 is 108 to 234 μm. 2 When the display panel is used, the anti-peeping angle of the display device is 25° to 70°. At this time, the distance between the first light shielding block 1 and the second light shielding block 2, that is, the distance between the color filter substrate 3 and the array substrate 4, can be 12 μm.

[0061] In this way, by adjusting the size difference of the shading block, an anti-peeping effect at different oblique viewing angles can be formed, so that the anti-peeping angle of the display device can be flexibly set, thereby improving the flexibility of production design.

[0062] In some embodiments, Figure 3 As shown, the first light shielding block 1 and the second light shielding block 2 have the same shape, and the second light shielding block 2 is a ring structure.

[0063] Here, the annular structure may refer to an annular structure with a hollow middle portion, etc.

[0064] In one embodiment, the first shading block 1 and the second shading block 2 have the same shape, such as a rectangle, a hexagon or other shapes, etc. The first shading block 1 may be a fully covered solid structure, and the second shading block 2 may be a partially covered annular structure.

[0065] For example, the second light shielding block 2 may be a single-layer or multi-layer ring structure.

[0066] In one embodiment, the shape of the exposed portion in the center of the annular structure may be consistent with the shape of the second light shielding block 2 , for example, the shape of the second light shielding block 2 may be proportionally reduced.

[0067] In one embodiment, the exposed portion area of ​​the annular structure of the second shading block 2 can be determined by at least one of the anti-peeping angle, the size of the color filter substrate 3, the area of ​​the first shading block 1, the area of ​​the second shading block 2, and the number of color blocks.

[0068] In one embodiment, when the display panel includes a plurality of first light shielding blocks 1 and a plurality of second light shielding blocks 2, some or all of the plurality of second light shielding blocks 2 are annular structures. When some are annular structures, the other second light shielding blocks 2 except the annular structures are the same structure as the first light shielding blocks 1, such as a solid structure.

[0069] In this way, the lower shading block is a ring-shaped structure, forming a ring-shaped shading effect, and its ring-shaped edge can still provide a squint interference effect and can further reduce the impact on the normal vision effect.

[0070] In some embodiments, Figure 4 As shown, the display panel also includes: a spacer 5 arranged between the color film substrate 3 and the array substrate 4; the first shading block 1 and the projection of the spacer 5 on the color film substrate 3 overlap, and a wiring space 6 is opened at the overlapping portion; the second shading block 2 and the projection of the spacer 5 on the array substrate 4 overlap, and a wiring space 6 is opened at the overlapping portion.

[0071] In one embodiment, the photo spacer (PS) 5 may be columnar or in other shapes, and is used to support and space the color filter substrate 3 and the array substrate 4. The projections of the photo spacer 5 on the color filter substrate 3 and the array substrate 4 may overlap, or at least partially overlap. Here, the projection may refer to the projection along the vertical direction.

[0072] In one embodiment, a first wiring space is provided at the overlapping projections of the first shading block 1 and the spacer 5 on the color filter substrate 3, and a second wiring space is provided at the overlapping projections of the second shading block 1 and the spacer 5 on the array substrate 4. The first wiring space may have the same pattern and / or width as the second wiring space.

[0073] In one embodiment, the width of the wiring space 6 is greater than the line width of the gate drive signal line and / or the data signal line in the display panel. Here, the display panel also includes the gate drive signal line and the data signal line.

[0074] In one embodiment, the gate drive signal is the gate signal, the data signal is the data signal, and the width of the routing space 6 is greater than or equal to the line width of the gate drive signal line and / or the data signal line, which is conducive to the layout of the gate signal and data signal routing.

[0075] In this way, routing space for data signal lines and gate signal lines is reserved at the standing position on the spacer PS, thereby improving the availability of the routing space and reducing the extra space occupied by the routing.

[0076] An embodiment of the present application provides a display device, comprising the display panel and a driving circuit as described in any of the above embodiments, wherein the driving circuit drives the display panel to display a picture.

[0077] In one embodiment, part or all of the display panels included in the display device are the display panels described in any of the foregoing embodiments. For example, when part of the display panels included in the display device are the display panels described in any of the foregoing embodiments, it may mean that the display device includes at least one first display panel and at least one second display panel, wherein the first display panel is the display panel described in any of the foregoing embodiments.

[0078] In one embodiment, the first display panel is the display panel described in any of the foregoing embodiments, that is, it includes a first light shielding block 1 provided on a color filter substrate 3 and a second light shielding block 2 provided on an array substrate 4. The second display panel may not include the second light shielding block 2 provided on the array substrate 4, that is, the second light shielding block 2 is not provided on the array substrate 4 in the second display panel.

[0079] In one embodiment, among the multiple display panels included in the display device, at least one second light shielding block 2 is a ring-shaped structure.

[0080] In one embodiment, the number of the first light shielding blocks 1 in the display device is greater than or equal to the number of the second light shielding blocks 2 .

[0081] In one embodiment, when the number of the first light-shielding blocks 1 is greater than the number of the second light-shielding blocks 2 , part of the display panels in the display device are the display panels described in any embodiment.

[0082] In one embodiment, when the number of first light-shielding blocks 1 is greater than the number of second light-shielding blocks 2, the array substrate 4 in the display panel is not provided with a second light-shielding block 2, and a graphic processing of the same shape as the first light-shielding block 1 can be performed at a position corresponding to the first light-shielding block 1, thereby increasing the interference of wide-viewing angle visual effects.

[0083] In one embodiment, the display device includes at least one first display panel and at least one second display panel, wherein the first display panel is the display panel described in any of the above embodiments. The first shading block 1 and the second shading block 2 in the first display panel may have the same shape, for example, both are rectangular, hexagonal or other shapes.

[0084] In one embodiment, the first light shielding block 1 in the first display panel may be a fully covered solid structure, and the second light shielding block 2 may also be a fully covered solid structure.

[0085] In one embodiment, the second display panel may not include the second light shielding block 2 , that is, the array substrate 4 in the second display panel is not provided with the second light shielding block 2 .

[0086] In one embodiment, the second display panel may include a second shading block 2, and the first shading block 1 in the second display panel may be a fully covered solid structure, and the second shading block 2 may be a partially covered annular structure. For example, the second shading block 2 may be a one-layer or multi-layer annular structure.

[0087] In one embodiment, the exposed portion area of ​​the annular structure of the second shading block 2 can be determined by at least one of the anti-peeping angle, the size of the color filter substrate 3, the area of ​​the first shading block 1, the area of ​​the second shading block 2, and the number of color blocks.

[0088] In one embodiment, when the number of the first light shielding blocks 1 is greater than the number of the second light shielding blocks 2 , the difference between the number of the first light shielding blocks 1 and the number of the second light shielding blocks 2 may be equal to the number of the second display panels in the display device.

[0089] In this way, the number of the shading blocks located at the top is not less than the number of the shading blocks located at the bottom, so that different anti-peeping effects can be formed and the anti-peeping pattern can be flexibly set.

[0090] In some embodiments, the display device is divided into a first area and a second area;

[0091] The display panel in the first area is the display panel described in any of the above embodiments; the display panel in the second area is not provided with the first light shielding block 1 and the second light shielding block 2.

[0092] In one embodiment, the display device may be divided into at least one first area and at least one second area. For example, a plurality of first areas and a plurality of second areas may be alternately arranged in sequence.

[0093] In one embodiment, the position, area, and arrangement of the first area and the second area may be determined according to a desired privacy protection area and / or pattern.

[0094] In this way, the second area does not have the first shading block 1 and the second shading block 2, so the second area cannot form the oblique interference of the two layers of shading blocks, and thus has no anti-peeping effect. The first area can be used as an anti-peeping area, thereby flexibly providing a local anti-peeping effect.

[0095] An embodiment of the present application further provides an electronic device, wherein the electronic device includes the display device described in any one or more of the aforementioned embodiments.

[0096] Here, the electronic device may be any device with a display function, such as a mobile phone, a watch, a tablet computer, a television, or a laptop computer.

[0097] As a possible implementation, Figure 5As shown, a single-cell anti-peeping structure based on the principle of interference moiré is proposed:

[0098] 1. The anti-peeping display module contains a single cell structure and is a non-switchable anti-peeping display module;

[0099] 2. The liquid crystal display (LCD) of the anti-peep structure has a light shielding layer, i.e., a light shielding block, on both the TFT layer and the CF side;

[0100] 3. The light shielding layer of the TFT layer and CF has a line width greater than that of the data and gate lines at the position where the PS stands;

[0101] 4. The CF light shielding layer is a rectangle or other regular pattern with a BM external expansion size of D*L; the size of the light shielding layer of the TFT layer is ≤ the size of the light shielding layer on the CF side, the patterns are the same, and the ratio is: the size of the light shielding layer of the TFT layer / the size of the light shielding layer of the CF layer is ≤1;

[0102] 5. For mobile phones, tablet computers and other products, the anti-peeping angle can be set to 25°~70°. When it is greater than 70°, the screen visual effect will deteriorate, and it can be anti-peeping itself;

[0103] 6. If Figure 6 As shown in the figure, within the privacy angle (for example, the anti-peeping angle is less than 25°), the CF graphic size is larger than the TFT layer graphic size, so it has no effect on the display. When it is greater than 25°, the upper and lower layers of graphics interfere with each other, resulting in moiré patterns, which affects the readability at a wide viewing angle. Among them, α is the oblique anti-peeping angle, β is the normal viewing angle, D is the width, L is the length, and H is the distance between the TFT layer and the color filter;

[0104] 7. The number of TFT layer shading blocks is less than or equal to the number of CF shading blocks, and the missing vacancies can be processed with regular graphics to increase the visual effect interference at a wide viewing angle;

[0105] In this embodiment, the TFT layer also has the same shading arrangement at the position corresponding to the BM expansion on the CF side, but the shading on the TFT layer side is annular, the purpose of which is to form a squint interference between the upper and lower shading modules to prevent peeping, and the areas of the two shading modules may not be 1:1. According to the requirements of the anti-peeping screen, the TFT layer side can be modularly designed instead of the entire array pattern, so as to achieve local interference failure to form a squint interference pattern.

[0106] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0107] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

[0108] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A display panel, comprising a color film substrate and an array substrate, characterized in that: The color filter substrate includes a first light shielding block, and the array substrate includes a second light shielding block; The projections of the first light shielding block and the second light shielding block on the array substrate overlap.

2. The display panel according to claim 1, characterized in that: The color filter substrate is provided with a color resist and a black matrix, and the first light shielding block is formed by expanding at least one black matrix on the color filter substrate.

3. The display panel according to claim 1, characterized in that: The area of ​​the first light shielding block is greater than or equal to the area of ​​the second light shielding block.

4. The display panel according to claim 3, characterized in that: When the area of ​​the first light shielding block is greater than the area of ​​the second light shielding block, the area difference between the first light shielding block and the second light shielding block is related to the anti-peeping angle of the display device to which the display panel is applied.

5. The display panel according to claim 1, characterized in that: The first light shielding block and the second light shielding block have the same shape, and the second light shielding block is a ring structure.

6. The display panel according to claim 1, characterized in that: The display panel further includes: a spacer disposed between the color filter substrate and the array substrate; The projections of the first shading block and the spacer on the color filter substrate overlap, and a wiring space is opened at the overlap; the projections of the second shading block and the spacer on the array substrate overlap, and a wiring space is opened at the overlap.

7. The display panel according to claim 6, characterized in that: The width of the wiring space is greater than the line width of the gate drive signal line and / or the data signal line in the display panel.

8. A display device, characterized in that: The display device comprises a driving circuit and the display panel according to any one of claims 1 to 7, wherein the driving circuit drives the display panel to display an image.

9. The display device according to claim 8, characterized in that: The number of the first light shielding blocks in the display device is greater than or equal to the number of the second light shielding blocks.

10. The display device according to claim 8, characterized in that The display device is divided into a first area and a second area; The display panel in the first area is the display panel according to any one of claims 1 to 7; the display panel in the second area is not provided with the first light shielding block and the second light shielding block.

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