Display module, spliced screen and display device

Abstract

At least one embodiment of the invention provides a display module, a spliced screen and a display device.The display module comprises a backlight component and a display component, the backlight component comprises a middle frame and a back plate, the middle frame comprises a first end and a second end, the first end is configured to support the display component, and the second end is borne on the back plate; a first included angle is formed between the first end part and the display surface of the display component, and the range of the first included angle is 55-85 degrees, and the design of the display module can solve the problem that the display image quality of the periphery and the whole of a spliced screen formed by splicing a plurality of display modules is poor, so that the image quality of the display module can be improved.

Description

Display module, splicing screen and display device Technical Field

[0001] Embodiments of the present disclosure relate to a display module, a spliced ​​screen, and a display device. Background Art

[0002] The application of display devices formed by splicing screens is becoming more and more widespread. Display devices including splicing screens are usually formed by splicing together multiple independent display modules. The display module usually includes a display component and a backlight component. The display component mainly includes a display panel and an optical film layer, etc., and the backlight component mainly includes a middle frame, a light source and a back plate, etc. The middle frame included in the backlight component is arranged on one side of the display component, and the middle frame is provided with a bearing platform that can bear the display component. The bearing platform needs to be connected and fixed to the non-display area of ​​the display component by adhesive, and the middle frame is located on the outside of the bottom plate of the back plate. The main function of the middle frame is to reflect the light emitted by the light-emitting diode and support the optical film layer. The back plate included in the backlight component can support the middle frame. The light source includes a plurality of light-emitting diodes arranged in an array on the bottom plate of the back plate. The main function of the light-emitting diode is to provide a backlight light source. The optical film layer is arranged above the light source, mainly used to process the light emitted by the light source to improve the uniformity of the display image of the display panel.

[0003] Summary of the Invention

[0004] At least one embodiment of the present disclosure provides a display module, a spliced ​​screen and a display device, wherein the display module includes a backlight component and a display component, wherein the backlight component includes a middle frame and a back panel, the middle frame includes a first end configured to support the display component, and a second end supported on the back panel, a first angle is formed between the first end and the display surface of the display component, and the first angle ranges from 55° to 85°. The design of the display module can solve the problem of poor display quality of the periphery and the overall display of a spliced ​​screen formed by splicing multiple display modules, thereby improving the image quality of the display module.

[0005] At least one embodiment of the present disclosure provides a display module, which includes a backlight component and a display component, wherein the backlight component includes a middle frame and a back panel, the middle frame includes a first end configured to support the display component, and a second end supported on the back panel, and a first angle is formed between the first end and the display surface of the display component, and the range of the first angle is 55° to 85°.

[0006] For example, in the display module provided in at least one embodiment of the present disclosure, a second angle is defined between the second end portion and the bottom plate of the back plate, and the second angle is greater than the first angle.

[0007] For example, in the display module provided in at least one embodiment of the present disclosure, the display component includes a display area and an edge area outside the display area, and the middle frame includes at least an inclined reflective surface extending from the first end to the display area.

[0008] For example, in the display module provided in at least one embodiment of the present disclosure, the middle frame further includes a curved reflective surface protruding toward one side of the display area, and the curved reflective surface is on a side of the inclined reflective surface close to the back panel.

[0009] For example, in the display module provided in at least one embodiment of the present disclosure, the middle frame is made of aluminum metal, and a reflective structure is provided on the inclined reflective surface and the curved reflective surface of the middle frame.

[0010] For example, in the display module provided in at least one embodiment of the present disclosure, the reflective structure includes at least one of a white reflective film and a mirror reflective film.

[0011] For example, in the display module provided in at least one embodiment of the present disclosure, the back panel includes the bottom panel and side panels, and a light source structure is provided on the bottom panel.

[0012] For example, in the display module provided in at least one embodiment of the present disclosure, the direction from the edge area to the display area is a first direction, the number of the light source structures is multiple, and the light source structures include a first light source structure, a second light source structure, and a third light source structure that are adjacent to each other in the first direction and sequentially away from the edge area of ​​the display component. The minimum spacing between the first light source structure and the edge area of ​​the display component is a first spacing D1, the spacing between the first light source structure and the second light source structure is a second spacing D2, the spacing between the second light source structure and the third light source structure is a third spacing D3, the first spacing D1 is smaller than the second spacing D2, and the second spacing D2 is smaller than or equal to the third spacing D3.

[0013] For example, in the display module provided in at least one embodiment of the present disclosure, in the first direction, from the edge area of ​​the display component to the center of the display component, the closer to the edge area, the smaller the spacing between adjacent light source structures.

[0014] For example, in the display module provided by at least one embodiment of the present disclosure, the first distance D1 is 1 / 3 to 2 / 3 of the second distance D2.

[0015] For example, in the display module provided in at least one embodiment of the present disclosure, the display component includes a diffusion plate, an optical film layer, and a display panel stacked in sequence.

[0016] For example, in the display module provided in at least one embodiment of the present disclosure, the diffuser plate includes optical glass, and an ink layer is provided on at least one main surface of the optical glass, the ink layer includes an ink hollow area, and the ink hollow area corresponds to the edge area of ​​the display component.

[0017] For example, in the display module provided in at least one embodiment of the present disclosure, the thickness of the optical glass is 1 mm to 2 mm, the thickness of the ink layer is 5 μm to 20 μm, and the maximum size of the ink hollow area is 0.2 mm to 5 mm.

[0018] For example, in the display module provided in at least one embodiment of the present disclosure, an entire ink layer is provided on both main surfaces of the optical glass, and at least one of a brightness enhancing film and a prism film is provided between the ink layer close to the display panel and the display panel.

[0019] For example, in the display module provided in at least one embodiment of the present disclosure, the diffusion plate includes a main substrate and a dot absorption pattern arranged on a side of the main substrate away from the display panel, and the material of the main substrate includes polycarbonate or polystyrene.

[0020] For example, in the display module provided in at least one embodiment of the present disclosure, the material of the dot absorption pattern includes white ink and a light diffuser dispersed in the white ink.

[0021] For example, in the display module provided in at least one embodiment of the present disclosure, a multi-layer stacked grid dot absorption pattern is provided on the side of the main substrate away from the display panel; or a layer of the grid dot absorption pattern is provided on the side of the main substrate away from the display panel, and a prism film is provided between the main substrate and the display panel.

[0022] For example, in the display module provided in at least one embodiment of the present disclosure, a light adjustment pattern is provided on the surface of the inclined reflective surface and the curved reflective surface of the middle frame close to the display area, and the light adjustment pattern includes a light absorption pattern or a light transmission pattern.

[0023] For example, in the display module provided in at least one embodiment of the present disclosure, a whole layer of light adjustment pattern is provided between the base plate and the light source structure, and a light absorption pattern or a light transmission pattern is provided on the side of the light adjustment pattern close to the display component.

[0024] For example, in the display module provided in at least one embodiment of the present disclosure, the light absorption pattern includes black ink dots, and the transmission pattern includes a hole structure provided on the light adjustment pattern.

[0025] At least one embodiment of the present disclosure further provides a spliced ​​screen, which includes a plurality of connected display modules as described in any of the above embodiments.

[0026] At least one embodiment of the present disclosure further provides a display device, which includes the display module described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present disclosure, but do not limit the present disclosure.

[0028] FIG1 is a schematic cross-sectional view of a display module according to at least one embodiment of the present disclosure;

[0029] FIG2 is a diagram showing simulation results of edge display brightness of a display module when a first angle is 40°, provided by at least one embodiment of the present disclosure;

[0030] FIG3 is a diagram showing simulation results of edge display brightness of a display module when a first angle is 60°, provided by at least one embodiment of the present disclosure;

[0031] FIG4 is a diagram showing simulation results of the edge display brightness of a display module when the first angle is 75°, provided by at least one embodiment of the present disclosure;

[0032] FIG5 is a schematic cross-sectional view of a display module according to at least one embodiment of the present disclosure;

[0033] FIG6 is a schematic cross-sectional view of a display component provided by at least one embodiment of the present disclosure;

[0034] FIG7 is a schematic diagram of the three-dimensional structure of a diffusion plate provided by at least one embodiment of the present disclosure;

[0035] FIG8 is a schematic diagram of the three-dimensional structure of another diffuser plate provided by at least one embodiment of the present disclosure;

[0036] FIG9 is a schematic diagram of a planar structure of a spliced ​​screen provided by at least one embodiment of the present disclosure; and

[0037] FIG10 is a block diagram of a display device provided by at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] Unless otherwise defined, the features such as "parallel", "perpendicular" and "same" used in the embodiments of the present invention include the situations of "parallel", "perpendicular", "same" in a strict sense, as well as the situations of "approximately parallel", "approximately perpendicular", "approximately the same" and the like that contain a certain error. For example, the above-mentioned "approximately" may mean that the difference between the compared objects is 10% of the average value of the compared objects, or within 5%. When the number of a component or element is not specifically indicated below in the embodiments of the present invention, it means that the component or element may be one or more, or may be understood as at least one. "At least one" refers to one or more, and "multiple" refers to at least two. The "same-layer setting" in the embodiments of the present invention refers to the relationship between multiple film layers formed by the same material after the same step (for example, a one-step patterning process). The "same layer" here does not always mean that the thickness of multiple film layers is the same or the height of multiple film layers in the cross-sectional view is the same.

[0041] At present, the splicing screen formed by splicing multiple display modules has the problem of uneven display brightness during the display process. For example, there is a darkening phenomenon in the corners and edges of the splicing screen, which affects the subjective experience of users when using it. The inventors of the present disclosure have noticed that the cause of the above-mentioned uneven display brightness problem may be the poor structural design of the middle frame. Due to the ultra-narrow frame design, the design of the edge structure of the middle frame will affect the amount of incident light, resulting in poor image quality at the edge of the splicing screen. It may also be that the reflective film material and reflectivity of the reflective surface of the middle frame are poorly designed, resulting in poor image quality at the edge of the splicing screen. It may also be that the arrangement of the light source structure causes uneven output light, affecting the uneven display quality of the splicing screen. It may also be a problem with the design of the optical material architecture. For example, the design of optical materials such as optical films and diffusers will affect the image quality displayed by the display module.

[0042] At least one embodiment of the present disclosure provides a display module, which includes a backlight component and a display component, wherein the backlight component includes a middle frame and a back panel, the middle frame includes a first end configured to support the display component, and a second end supported on the back panel, and a first angle is defined between the first end and the display surface of the display component, and the range of the first angle is 55° to 85°. This design can solve the problem of poor display quality of the periphery and the overall display of a spliced ​​screen formed by splicing multiple display modules, thereby improving the image quality of the display module.

[0043] For example, FIG1 is a schematic diagram of a cross-sectional structure of a display module provided in at least one embodiment of the present disclosure. As shown in FIG1 , the display module 100 includes a backlight component 101 and a display component 102. The backlight component 101 includes a middle frame 1011 and a back plate 1012. The middle frame 1011 includes a first end 1011a configured to support the display component 101 and a second end 1011b supported on the back plate 1012. A first angle α is formed between the first end 1011a and the display surface of the display component 102. The first angle α ranges from 55° to 85°. For example, when the first angle α is less than 55°, the amount of light incident on the edge of the spliced ​​screen is too small, resulting in poor display quality around the spliced ​​screen and overall display quality. A structural design with the first angle α greater than 85° makes it difficult to implement the current manufacturing process. The design of the above-mentioned display module can solve the problem of poor display quality around and overall display quality of a spliced ​​screen formed by splicing multiple display modules, thereby improving the image quality of the display module.

[0044] For example, FIG2 is a simulation result diagram of the edge display brightness of the display module when the first angle is 40° provided by at least one embodiment of the present disclosure, FIG3 is a simulation result diagram of the edge display brightness of the display module when the first angle is 60° provided by at least one embodiment of the present disclosure, and FIG4 is a simulation result diagram of the edge display brightness of the display module when the first angle is 75° provided by at least one embodiment of the present disclosure. As shown in FIG2 to FIG4, when the first angle α is 40°, the edge display brightness of the display module is the lowest, and the darker area at the edge position is the largest. When the first angle α is 60°, the edge display brightness of the display module increases, and the darker area at the edge position decreases relative to the case where the first angle α is 40°. When the first angle α is 75°, relative to the case where the first angle α is 60°, the edge display brightness of the display module becomes greater, and the area of ​​the darker region at the edge becomes smaller, that is, the larger the first angle α is, the smaller the distance for the brightness of the edge of the display module to reach brightness balance, that is, the smaller the area of ​​the dark region at the edge of the display module, the more uniform the brightness of the edge of the display module, and the larger the first angle α is, the more conducive it is to increasing the amount of light incident on the edge of the display module.

[0045] For example, as shown in FIG1 , the first end portion 1011a is in direct contact with the display component 102 , and the second end portion 1011b is in direct contact with the back panel 1012 , so that the first end portion 1011a can stably support the display component 102 , and the back panel 1012 can stably support the second end portion 1011b .

[0046] For example, as shown in FIG1 , the back panel 1012 includes side panels 1012a and a bottom panel 1012b. A second angle β is formed between the second end portion 1011b and the bottom panel 1012b, and the second angle β is greater than the first angle α. For example, the main surface of the bottom panel 1012b is parallel to the display surface of the display component 102, and a second angle β is formed between the second end portion 1011b and the display surface of the display component 102. For example, in one example, the main surface of the bottom panel 1012b is parallel to the horizontal plane, and the second angle β is the angle between the second end portion 1011b and the horizontal plane. For example, the second angle β can range from 85° to 90°, which can improve the image quality of the display area.

[0047] For example, as shown in Figure 1, the display component 102 includes a display area 1021 and an edge area 1022 outside the display area 1021. The middle frame 1011 includes at least an inclined reflective surface 103 extending from the first end 1011a to the display area 1021. The inclined reflective surface 103 can enable more light to reach the edge area 1022 of the display component 102, thereby improving the display brightness of the display module 100 at the edge position.

[0048] For example, as shown in Figure 1, the middle frame 1011 also includes a curved reflective surface 104 that protrudes toward one side of the display area 1021, and the curved reflective surface 104 is on the side of the inclined reflective surface 103 close to the back panel 1012. The curved reflective surface 104 can allow more light to reach the display area 1021 and is conducive to improving the uniformity of the light after reflection.

[0049] For example, in one embodiment, the middle frame 1011 is made of aluminum metal, and a reflective structure 105 is provided on the inclined reflective surface 103 and the arc-shaped reflective surface 104 of the middle frame 1011 .

[0050] For example, in one embodiment, the reflective structure 105 is at least one of a white reflective medium and a mirror reflective layer. For example, the material of the reflective structure 105 and its reflectivity to incident light may affect the reflection direction and uniformity of the incident light, thereby affecting the module edge and overall image quality.

[0051] For example, in one embodiment, the middle frame 1011 is made of aluminum, and white paint is sprayed on the reflective surface of the middle frame as a reflective medium. For example, the white paint is sprayed on the entire reflective surface of the middle frame 1011 as a reflective medium, or the white paint is sprayed only on the inclined reflective surface 103 and the curved reflective surface 104 as a reflective medium. In another example, the middle frame 1011 can also be made of white plastic.

[0052] For example, when the material of the middle frame 1011 is metal aluminum and white paint is sprayed on the reflective surface of the entire middle frame 1011, or when the material of the middle frame 1011 is white plastic, the overall reflectivity of the middle frame 1011 is about 86% and the mirror reflectivity is about 3%.

[0053] For example, in one embodiment, a reflective film may be attached to the reflective surface of the middle frame 1011. The reflective film is made of a metallic silver layer, which is a mirror reflective layer. The mirror reflective layer has a smooth surface without particles and a light reflectivity of 95% to 100%.

[0054] For example, in one embodiment, the reflective film attached to the reflective surface of the middle frame 1011 may also include a reflective film formed by stacking a film layer with a high reflectivity and a film layer with a low reflectivity, and the surface may have a structure with reflective particles (a matte surface) and a structure without reflective particles (a smooth surface), wherein the structure with reflective particles has a lower specular reflectivity, while the structure without reflective particles has a higher specular reflectivity. The reflectivity of the reflective film with high reflectivity is greater than 90%, and the reflectivity of the reflective film with low reflectivity is 80% to 90%.

[0055] For example, in one embodiment, when a reflective film with high reflectivity and without reflective particles is attached to the reflective surface of the middle frame 1011, the reflectivity of the reflective film is above 95%. Improving the reflectivity of the reflective film helps improve the uniformity of the image quality around the display module and overall image quality, thereby improving the image quality of the display module. Therefore, the reflectivity of the reflective film provided on the middle frame is a factor that affects the image quality around the display module and overall image quality. A reflective film formed of a high-reflectivity material helps improve the image quality of the display module. For example, the reflectivity of the reflective film can be designed to be greater than 80%, and the reflectivity of the mirror reflection can be designed to be less than 10%.

[0056] For example, FIG5 is a schematic diagram of a cross-sectional structure of a display module provided in at least one embodiment of the present disclosure. A light source structure 106 is provided on the base plate 1012 b. The light source structure 106 is, for example, a light emitting diode, and a plurality of light emitting diode arrays are arranged on the base plate 1012 .

[0057] For example, since the light emitted by the light emitting diode has a divergence angle, a dark area will appear between two adjacent light emitting diodes. This dark area will cause the light output uniformity of the surface light source provided by the backlight component 101 to decrease. Therefore, it is necessary to increase the number of light emitting diodes and shorten the distance between two adjacent light emitting diodes to reduce the area of ​​the dark area. That is, the number of light source structures 106 in a display module 100 can be multiple. In order to improve the uniformity of the emitted light, the multiple light source structures 106 are usually designed to be arranged in an array. For example, as shown in FIG5 , the direction from the edge region (e.g., the first edge) to the display region is a first direction X, there are multiple light source structures 106, and the light source structures 106 include edge regions that are adjacent to and sequentially away from the display component 102 in the first direction X. The light source structures 106 include a first light source structure 106a, a second light source structure 106b, and a third light source structure 106c that are adjacent to and sequentially away from the first edge of the display component 102 in the first direction X. The spacing between the first light source structure 106a and the first edge of the display component 102 is a first spacing D1, that is, the minimum spacing between the first light source structure 106a and the edge region of the display component 102 is the first spacing D1. The spacing between the first light source structure 106a and the second light source structure 106b is a second spacing D2, and the spacing between the second light source structure 106b and the third light source structure 106c is a third spacing D3. The first spacing D1 is less than the second spacing D2, and the second spacing D2 is less than or equal to the third spacing D3. In the first direction X, from the edge region of the display component 102 to the center of the display component 102, the closer to the edge region, the smaller the spacing between adjacent light source structures 106. Since the closer to the first edge of the display component 102, the greater the risk of the display area of ​​the display component 102 being blocked, setting the first spacing D1, the second spacing D2, and the third spacing D3 to the above-mentioned size relationship can reduce the spacing between the light source structure 106 closest to the first edge of the display component 102 and the first edge of the display component 102, so that the dark frame area at the edge of the display module can be compensated for brightness, thereby improving the uniformity of image quality at the edge of the display module. In addition, while ensuring uniform brightness of the display component, the number of light source structures 106 can be reduced to reduce costs.

[0058] For example, the light source structures in the direct-type display module, such as light strips, are all arranged on the bottom plate of the back plate. The light of the light source structure of the backlight component is emitted from the bottom plate of the back plate and directly transmitted in the direction perpendicular to the main surface of the display panel. However, due to the limitation of the light-emitting angle of the lamp beads and lenses of the light source structure, the lamp beads arranged on the bottom plate of the back plate need to be evenly distributed on the bottom plate to make the light evenly emitted. This will result in a large number of light source structures, such as light strips. When the number of light strips is large, it is not conducive to the processing and assembly of the backlight component, and is even more detrimental to saving materials, and the processing cost is higher. Therefore, it is necessary to consider adjusting the spacing between adjacent light source structures to reduce the number of light source structures and ensure the uniformity of the brightness of the display component.

[0059] It should be noted that the types and selections of the above-mentioned first light source structure 106a, the second light source structure 106b and the third light source structure 106c can be found in the above-mentioned description of the light source structure 106. Multiple light source structures 106 are arranged in an array on the bottom plate of the backplane. Figure 5 only shows multiple light source structures 106 arranged adjacent to each other in the first direction X.

[0060] It should also be noted that the first edge of the display component refers to the edge of the display component that is closest to the described light source structure. For example, when describing the leftmost light source structure 106 in Figure 5, that is, the first light source structure 106a, the first edge of the display component refers to the leftmost edge of the display component. When describing the rightmost light source structure 106 not shown in Figure 5, the first edge of the display component refers to the rightmost edge of the display component.

[0061] For example, when the first distance D1, the second distance D2, and the third distance D3 are all equal, and the distance from the first edge of the display component 102 is less than or equal to 70 mm, the illumination of the light source structure 106 will be relatively low, that is, a dark frame phenomenon will appear at the edge of the display component 102. When the first distance D1 is designed to be smaller than the second distance D2, and the second distance D2 is designed to be less than or equal to the third distance D3, the brightness of the dark frame area at the first edge of the display component can be compensated, thereby improving the uniformity of image quality at the edge of the display module.

[0062] For example, as shown in Figure 5, in the first direction X, in the area from the first edge of the display component 102 to the center of the display component 102, the closer the distance to the first edge of the display component 102, the smaller the spacing between adjacent light source structures 106, that is, the arrangement density of the light source structure located at the edge position of the bottom plate of the back panel 1012 is greater than the arrangement density of the light source structure located in the middle area of ​​the bottom plate of the back panel 1012. In this way, the number of light source structures can be further reduced to reduce costs while ensuring uniform brightness of the display component.

[0063] For example, in one embodiment, the first spacing D1 is 1 / 2 to 2 / 3 of the second spacing D2. By setting the ratio of the first spacing D1 to the second spacing D2 within the above ratio range, the distance between the light source structure closest to the first edge and the first edge can be reduced, so that the brightness of the dark frame area at the edge of the display module can be compensated, thereby further improving the uniformity of the image quality at the edge of the display module.

[0064] For example, in one example, the first distance D1 has a value range of 35 mm to 45 mm, the second distance D2 has a value range of 55 mm to 70 mm, and the third distance D3 has a value range of 75 mm to 90 mm.

[0065] For example, in one example, the first distance D1 is 39 mm, the second distance D2 is 62 mm, and the third distance D3 is 76 mm.

[0066] It should be noted that, in the spliced ​​screen provided in the embodiments of the present disclosure, element A and element B are adjacent, or adjacent elements A and element B means that there are no other elements A and other elements B between element A and element B, but there may be other elements besides element A and element B. Element A and element B may be the same element or different elements.

[0067] For example, FIG6 is a schematic diagram of the cross-sectional structure of a display component provided by at least one embodiment of the present disclosure. As shown in FIG6 , the display component 102 includes a diffuser plate 1023 , an optical film layer 1024 and a display panel 1025 stacked in sequence.

[0068] For example, in one example, the material of the optical film layer 1024 is polyethylene terephthalate, and the optical film layer 1024 includes a stacked prism film and a diffusion film, wherein the prism film is configured to converge light to enhance the overall brightness of the display module, and the diffusion film is used to make the light emitted by the light source structure more uniform.

[0069] For example, the display panel 1025 includes an array substrate and a color filter substrate that are relatively arranged, and a liquid crystal layer sandwiched between the array substrate and the color filter substrate, that is, the display panel is a liquid crystal display panel. The structure of the liquid crystal display panel can refer to the conventional design. For example, a switching element (for example, a thin film transistor) connected to mutually orthogonal source wiring and gate wiring, a pixel electrode connected to the switching transistor, and an orientation film are provided on the array substrate. Color filters of various colors such as red filters, green filters and blue filters, a black matrix that separates each color filter, and an orientation film are provided on the color filter substrate. Polarizers are also provided on the outer sides of the array substrate and the color filter substrate, respectively.

[0070] For example, light-emitting diodes are usually used as light source structures. Since the light emitted by light-emitting diodes has strong directionality, in order to make the light emitted by the light-emitting diodes evenly mixed and form a uniform surface light source, the diffusion plate arranged above the light source structure needs to maintain a sufficient distance from these light-emitting diodes. Therefore, the diffusion plate needs to be arranged on the side of the bottom plate 1012b of the middle frame 1011 away from the back plate 1012.

[0071] For example, in one example, the material of the diffusion plate 1023 includes at least one of polystyrene and polycarbonate. The main function of the diffusion plate 1023 is to make the light emitted by the light source structure 106 more uniform, so as to form a uniform surface light source.

[0072] For example, FIG7 is a schematic diagram of the three-dimensional structure of a diffuser plate provided in at least one embodiment of the present disclosure. Referring to FIG5 and FIG7 , the diffuser plate 1023 includes optical glass 1023a, with an ink layer 1023b disposed entirely on at least one major surface of the optical glass 1023a. For example, the ink layer can be black ink. The ink layer 1023b includes a hollow ink region 1023c, which corresponds to the edge region 1022 of the display component 102. This allows light to enter the edge region of the diffuser plate 1023 corresponding to the display panel 1025, thereby increasing the amount of light emitted from the edge region 1022 of the display panel 1025. The portion of the black ink layer not corresponding to the hollow ink region 1023c reduces the amount of light incident on the display region 1021 of the display panel 1025, thereby improving the uniformity of display brightness across the edge region 1022 and the display region 1021 of the display panel 1025.

[0073] For example, the optical glass needs to have certain strength and resistance to thermal expansion and contraction. For example, the optical glass can be a transparent glass substrate.

[0074] For example, as shown in FIG7 , the thickness of the optical glass 1023a is 1 mm to 2 mm, and the optical glass 1023a allows light to pass completely. The thickness of the ink layer 1023b is 5 μm to 20 μm, and the maximum size of the ink hollow area 1023c is 0.2 mm to 5 mm. For example, as shown in FIG7 , the planar shape of the ink hollow area 1023c is circular, and the diameter of the circle is 0.2 mm to 5 mm. For example, the maximum size of the ink hollow area 1023c is 1 / 5 to 2.5 times the thickness of the optical glass 1023a. The embodiments of the present disclosure are not limited to this. When the maximum size of the ink hollow area 1023c is less than 0.2 mm, the processing yield is low. When the maximum size of the ink hollow area 1023c is greater than 5 mm, it is easy to cause high local light transmittance and produce bright spots.

[0075] For example, the preparation process of the diffuser plate includes laser cutting glass, using pure water to clean the peeling after cutting, printing an ink layer with an ink hollow area on the light incident side of the diffuser plate, baking the ink layer, printing an ink layer with an ink hollow area on the light output side of the diffuser plate, baking the ink layer, using pure water to clean the peeling after cutting, laminating a film material on the ink layer, degassing the film material, and finally performing optical inspection.

[0076] For example, in one embodiment, an ink layer 1023b may be provided entirely on both main surfaces of the optical glass 1023a, and at least one of a brightness enhancement film and a prismatic film may be provided between the ink layer 1023b near the display panel 1025 and the display panel 1025. For example, the brightness enhancement film may increase the brightness of the display module 100. The prismatic film may deflect light.

[0077] For instance, in one example, the light incident on the ink hollow area 1023c is not blocked by ink and has a high transmittance, which can improve the brightness of the ink hollow area 1023c. However, at the position corresponding to the non-ink hollow area 1023c, due to the presence of ink, the transmittance of the light is lower than the transmittance of the light in the ink hollow area 1023c. The embodiment of the present disclosure improves the transmittance of the light at the edge of the display module by setting an ink hollow area to improve the phenomenon of dark frames at the edges of the display module.

[0078] For example, after forming the ink layer 1023b including the ink hollow area 1023c, high-temperature baking is required to accelerate the curing speed of the ink.

[0079] For example, in order to increase the light transmittance of the diffuser, white ink or gray ink is generally used to reduce the ink's absorption of light and improve the brightness of the display module. The dot design is preferably between 0.2mm and 5mm.

[0080] For example, Figure 8 is a schematic diagram of the three-dimensional structure of another diffusion plate provided by at least one embodiment of the present disclosure. The diffusion plate 1023 includes a main substrate 1023e and a dot absorption pattern 1023f arranged on the side of the main substrate 1023e away from the display panel 1025, and the material of the main substrate 1023e includes polycarbonate or polystyrene.

[0081] For example, as shown in FIG8 , the material of the dot absorption pattern 1023f includes white ink and a light diffuser dispersed in the white ink. White ink is printed on the lower surface of the diffuser plate 1023, and the white ink contains a light diffuser made of silicon dioxide. The light diffuser diffuses light incident on the dot absorption pattern 1023f, thereby reducing the display brightness of the display panel in the area corresponding to the dot absorption pattern 1023f and making the emitted light more uniform.

[0082] For example, the diffusion plate 1023 shown in FIG8 is helpful in optimizing the brightness unevenness at the edge or the entire display module, thereby improving the brightness uniformity at the edge or the entire display module.

[0083] For example, the main substrate 1023e may be made of polycarbonate or polystyrene.

[0084] For example, the manufacturing process of the diffuser shown in Figure 8 is as follows: after the main substrate 1023e is manufactured, white, gray or black ink is used to perform screen printing on the light incident surface of the main substrate 1023e. The dot absorption pattern 1023f formed after printing forms an ink protrusion structure on the surface of the main substrate 1023e. After the incident light enters the ink protrusion structure, the light is scattered and part of the light is absorbed by the ink, thereby reducing the brightness of the bright area with more light, thereby achieving the effect of balancing the light and dark areas of the picture.

[0085] For example, in one embodiment, a multi-layered screen absorption pattern 1023f is provided on a side of the main substrate 1023e away from the display panel 1025. The multi-layered screen absorption pattern 1023f can better absorb incident light, further ensuring a balance between bright and dark areas of the image. The use of the multi-layered screen absorption pattern 1023f is also beneficial for improving the uniformity of the image quality of the display module.

[0086] For example, in another embodiment, a dot absorption pattern 1023f is provided on the side of the main substrate 1023e away from the display panel 1025, and a prism film is provided between the main substrate 1023e and the display panel 1025. The prism film can deflect the light so as to converge or disperse the light according to needs.

[0087] For example, in one embodiment, referring to FIG1 , a light-adjusting pattern 107 is provided on the surface of the inclined reflective surface 103 and the curved reflective surface 104 of the middle frame 1011 near the display area 1021. The light-adjusting pattern 107 includes a light-absorbing pattern or a light-transmitting pattern. For example, the light-absorbing pattern can be a black circular ink pattern, and the light-transmitting pattern can be a hole punched in the light-adjusting pattern 107, allowing light to pass through the hole.

[0088] For example, as shown in Figure 5, in one example, the light adjustment pattern 107 and the light source structure 106 are arranged on the base plate 1012, the light adjustment pattern 107 is arranged between the base plate 1012 and the light source structure 106, and the light adjustment pattern 107 is arranged in an entire layer between the base plate 1012 and the light source structure 106, and a light absorption pattern or a light transmission pattern is arranged on the side of the light adjustment pattern 107 close to the display component 102, and the light adjustment pattern 107 can realize the function of uniforming the light emitted from the light source structure 106.

[0089] For example, in one example, the light absorption pattern includes black ink dots, and the light transmission pattern includes a hole structure disposed on the light adjustment pattern.

[0090] At least one embodiment of the present disclosure provides a splicing screen. For example, FIG9 is a schematic planar structural diagram of a splicing screen provided by at least one embodiment of the present disclosure. As shown in FIG9 , the splicing screen 300 includes a plurality of display modules 100 connected in sequence. Although FIG9 shows that the splicing screen 300 includes 9 display modules 100 spliced ​​together, the embodiments of the present disclosure are not limited thereto and may also include other numbers of display modules 100, for example, 2, 4, 6, 12, etc. The plurality of display modules 100 are spliced ​​together, and a seam is provided between any two adjacent display modules 100. In some examples, the display module 100 may be a liquid crystal display module, an organic light emitting diode (OLED) display module, or an electrophoretic display module. In the embodiments of the present disclosure, the display module 100 is described as a liquid crystal display module.

[0091] At least one embodiment of the present disclosure further provides a display device. For example, FIG10 is a block diagram of a display device provided by at least one embodiment of the present disclosure. As shown in FIG10 , the display device 400 includes a plurality of spliced ​​screens 300 provided by any of the above embodiments, and the spliced ​​screens 300 are formed by splicing together a plurality of display modules 100. The display device in the embodiments of the present disclosure can be any product or component with a display function, such as a monitor, an OLED panel, an OLED TV, electronic paper, a mobile phone, a tablet computer, a laptop computer, a digital photo frame, or a navigation system.

[0092] The display device provided in the embodiment of the present disclosure has the same technical features and working principles as the above-mentioned display module, and the embodiment of the present disclosure will not be described in detail.

[0093] The display module, spliced ​​screen and display device provided by at least one embodiment of the present disclosure have at least the following beneficial technical effects: the design of the display module can solve the problem of poor display quality around and as a whole of the spliced ​​screen formed by splicing multiple display modules, thereby improving the image quality of the display module.

[0094] There are a few points to note:

[0095] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0096] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale.

[0097] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0098] The above description is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A display module, comprising a backlight component and a display component, wherein: The backlight component includes a middle frame and a back plate, the middle frame includes a first end configured to support the display component, and a second end supported on the back plate, A first angle is formed between the first end and the display surface of the display component, and the first angle ranges from 55° to 85°.

2. The display module according to claim 1, wherein: A second angle is formed between the second end and the bottom plate of the back plate, and the second angle is greater than the first angle.

3. The display module according to claim 1 or 2, wherein: The display component includes a display area and an edge area outside the display area, and the middle frame at least includes an inclined reflective surface extending from the first end to the display area.

4. The display module according to claim 3, wherein: The middle frame further includes a curved reflective surface protruding toward one side of the display area, and the curved reflective surface is located on a side of the inclined reflective surface close to the back plate.

5. The display module according to claim 4, wherein: The material of the middle frame is aluminum metal, and a reflection structure is arranged on the inclined reflection surface and the arc-shaped reflection surface of the middle frame.

6. The display module according to claim 5, wherein: The reflective structure includes at least one of a white reflective film and a specular reflective film.

7. The display module according to any one of claims 3 to 6, wherein: The back plate includes the bottom plate and side plates, and a light source structure is arranged on the bottom plate.

8. The display module according to claim 7, wherein: The direction from the edge area to the display area is a first direction, the number of the light source structures is multiple, and the light source structures include a first light source structure, a second light source structure, and a third light source structure that are adjacent to the edge area of ​​the display component in the first direction and sequentially away from the edge area of ​​the display component, the minimum spacing between the first light source structure and the edge area of ​​the display component is a first spacing D1, the spacing between the first light source structure and the second light source structure is a second spacing D2, the spacing between the second light source structure and the third light source structure is a third spacing D3, the first spacing D1 is smaller than the second spacing D2, and the second spacing D2 is smaller than or equal to the third spacing D3.

9. The display module according to claim 8, wherein: In the first direction, in a region from the edge region of the display component to the center of the display component, the closer the region is to the edge region, the smaller the interval between adjacent light source structures.

10. The display module according to claim 8, wherein: The first distance D1 is 1 / 3 to 2 / 3 of the second distance D2.

11. The display module according to any one of claims 4 to 6, wherein: The display component comprises a diffusion plate, an optical film layer and a display panel which are stacked in sequence.

12. The display module according to claim 11, wherein: The diffusion plate includes optical glass, and an ink layer is disposed on at least one main surface of the optical glass. The ink layer includes an ink hollow area, and the ink hollow area corresponds to the edge area of ​​the display component.

13. The display module according to claim 12, wherein: The thickness of the optical glass is 1 mm to 2 mm, the thickness of the ink layer is 5 μm to 20 μm, and the maximum size of the ink hollow area is 0.2 mm to 5 mm.

14. The display module according to claim 12 or 13, wherein: An ink layer is disposed entirely on both main surfaces of the optical glass, and at least one of a brightness enhancement film and a prism film is disposed between the ink layer close to the display panel and the display panel.

15. The display module according to claim 11, wherein: The diffusion plate includes a main substrate and a dot absorption pattern arranged on a side of the main substrate away from the display panel, and the material of the main substrate includes polycarbonate or polystyrene.

16. The display module according to claim 15, wherein: The material of the halftone absorption pattern includes white ink and a light diffuser dispersed in the white ink.

17. The display module according to claim 16, wherein: A multi-layer stacked grid dot absorption pattern is arranged on the side of the main substrate away from the display panel; or a layer of the grid dot absorption pattern is arranged on the side of the main substrate away from the display panel, and a prism film is arranged between the main substrate and the display panel.

18. The display module according to any one of claims 4 to 6, wherein: A light adjustment pattern is arranged on the surface of the inclined reflection surface and the curved reflection surface of the middle frame close to the display area, and the light adjustment pattern includes a light absorption pattern or a light transmission pattern.

19. The display module according to any one of claims 7 to 10, wherein: A whole layer of light adjustment patterns is arranged between the bottom plate and the light source structure, and a light absorption pattern or a light transmission pattern is arranged on a side of the light adjustment pattern close to the display component.

20. The display module according to claim 18 or 19, wherein: The light absorption pattern includes black ink dots, and the transmission pattern includes a hole structure disposed on the light adjustment pattern.

21. A spliced ​​screen, comprising a plurality of connected display modules according to any one of claims 1 to 20.

22. A display device comprising the display module according to any one of claims 1 to 20.

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